Arrangement for mechanical working of parts,mainly hollow parts

专利摘要:
The invention relates to the field of metal forming and can be used to obtain hollow products in high-speed installations. The blanks from the foot or from the unit for feeding the strip material with the help of the roll feed mechanism fall into the first working position of the ring body. The latter can have from four to twelve working positions in which blocks of two tools are installed. Each tool is placed respectively on the crossbar attached to the fixed support of the device, and on the plunger placed in the ring housing. The drive for moving the plungers is made in the form of a rotating hollow cylindrical copier having meshing, clearing, disengaging and idling areas at the profiled end. In the process of processing, blanks are transferred from position to position using a transfer mechanism, the transport ring of which is equipped with grippers. The device has an engine, gear system, chain, transmission and a system of levers that provide simultaneous movement of the copier, the transfer mechanism and the feed units or strip. The transfer mechanism can have three turrets for unloading, transfer and loading with workpiece grips. During operation, the turret gears engage with each other and the transport ring gear. Possible installation options for two or three sets of turrets with a corresponding increase in the number of working positions. 8 hp f-ly, 41 ill., 1 tab. i O) With con
公开号:SU1356953A3
申请号:SU833584846
申请日:1983-04-28
公开日:1987-11-30
发明作者:Юлингер Вернер；Кимбелл Джон
申请人:Км- Инжинеринг Аг (Фирма)；
IPC主号:

专利说明:

one
The invention relates to the processing of metals by pressure and relates to devices for the manufacture of, for example, hollow articles with a mechanism for the automatic transfer of blanks.
Fig.1 shows a device for machining parts with a transfer mechanism, (the first option); figure 2 - section aa in figure 1 (on an enlarged scale); Fig. 3 shows a clamping plate attachment unit (on an enlarged scale); 4 shows a device for machining parts with a fixed support in the form of columns; FIG. 5 is a section BB in FIG. 4; in fig. - horizontal projections of six consecutive positions of the transfer mechanism (the first option); FIGS. 12 and 13 illustrate the principle of interaction of the grips of the workpiece transfer mechanism (the first option) with the tool block retainers in FIG. 14 - interrelation between at the end of the idle run and feed of the transport ring; on Fig - transfer mechanism (the first option) with twelve grips of the workpiece; Fig. 16 shows the transfer mechanism (second embodiment), a schematic horizontal projection; in Fig. 7) a device dp of machining parts with a transfer mechanism (the second option); . 18-26 - nine consecutive working positions of the transfer mechanism (the second option) for one tool device of four blocks of tools; on Figs. 27-35 - the same, for two tool devices of four blocks of tools; Fig. 36 is a linear diagram of the trajectories of the workpieces between operations in a device for two tool devices of four blocks of tools and a transfer mechanism (the second option) in the form of two feed units of three turrets each; in fig. 37 is a linear diagram showing the relative positions of the blanks in the transfer system shown in FIG. in fig. 38 — trajectories of movement of workpieces between operations for three transfer mechanisms (the second option) to a device with three tool devices of four blocks of tools; in fig. 39 and
56953:
40 - node feed strip in the device; on Fig - site feed tape from a roll.
The device for machining parts (Fig. 1) contains a fixed support 1, made in the form of a hollow cylindrical rack, on one side of which a crossbar 3 is fixed by means of 10 stashes 2, and on the other hand a pressure plate
4.Stand 2 secured in a fixed support 1 by means of split sleeves
5, and in the clamping plate 4 - by means of nuts 15.
The device contains a cylindrical copier 7 placed on a fixed support 1 from the side of the pressure plate 4 on the sub-bearings 8 and 9. The ring body 10 has holes for the working positions in which the plungers 13 are mounted by means of bearings 11 and 12 of the slide. supports 14,
25 carrier pallet 15 for lubrication.
The plungers 13 from the side of the copier 7 have a fork 16 with rollers 17 and 18 that come into contact with the profiled face of the copier 7.
30 The tooling device consists of blocks of tools, each of which contains two tools 19 and 20, placed respectively on the cross member 3 and the plunger 13.
gr Device contains crankshaft
21 associated with an electric motor (not shown).
Dp to ensure the rotation of the copier 7 in the device has a gear train 40 Leso 22 with vutrenny gearing, meshing with a gear wheel 23 mounted on the crank pin 24 of the crankshaft 21.
Pressure plate 4 has four
45 fingers 25 entering the apertures 26 of the gear wheel 23 (Fig. 2).
The diameter of the holes 26 is equal to the sum of the diameters of the pitch of the crank neck 24 and the finger 25. The fingers 25 prevent.
5Q rotation of the gear wheel. 23 around its center, forced it to perform parallel circular movement around and; center; | wheel wheel
22. For each, the rotation of the gear-k-fr. scaffolding 23 around the center of the notched stake from
Sa L occurs the angular displacement of the latter due to the different number of teeth on the gear wheels 22 and 23. Since the mass of the gear wheel 23
performs circular motions with a radius R equal to the distance between the centers of the gears 22 and 23, it excites centrifugal force, and to reduce the cyclic load on the bearing 27 of the crankshaft 21, the counterweights 28 and 29 are installed (Fig. 3).
The fixed support I can be made in the form of four columns (figures 4 and 5).
The device contains a transfer mechanism, the first version of which is The figure in FIG. The transfer mechanism has a transport ring 30 mounted eccentrically to the annular body 10. By means of the fingers 31, the transport ring 30 is connected to the crank 32 and the guide levers 33. The guide levers are mounted on the supporting posts 34 attached to the supports 14, and the crank 32 is connected to the shaft 35 which bears on itself a gear wheel 36 connected by a chain 37 with a gear wheel 38 mounted on a gear wheel 22. The transport ring has 39 grips of the workpiece according to the number of blocks of tools with projections 40 whose length is at least 3/4 of you honeycomb billet (Fig.13).
Each tool 20 has a workpiece retainer 4I and vertical fingers 42 inserted between the projections 40, as well as additional locking means 43, such as a magnet or vacuum device.
The device works in the following way.
During the rotation of the copier 7, the plungers 13 make reciprocating movements. The rotation from copier 7 through gear 22, chain drives 36, 37 and 38 is transmitted to shaft 35, and transport ring 30 rotates around fixed support 1, while guide levers 33 remain parallel with respect to crank 32.
Consider the option when the transport ring 30 has six grips 39 of the billet, shown in FIGS. 6-11 with positions,. The working positions of the annular body 10 are indicated by B, -Bg, the standby position is B ,.
The transport sun 30 is shown at a cycle angle (angle between srivoship 32 and a straight line, which halves the angle between the radii drawn from the central axis of the shaft 21 to the centers of positions BO and 55) equal to 0 °, with the capture A1 taking the workpiece from the feeder, at the same time the gripper A2 contacts the workpiece in working position B1, the gripper A3 is halfway between working position B2 and BR, the gripper A4 has just submitted the workpiece to working position B4, working position B5 is in the closed position (the top of the copier 7 approaches working position
B5), the A5 grab is on its way to the B4 position, leaving the B5 position, and the A6 grab has just filed a billet to the exit chute.
Fig. 7 shows the transfer mechanism at a cycle angle of 60, where the drive crank 32 is advanced at an angle of 60 in the direction opposite to the direction of the clockwise movement, and the top of the cam, indicated
B, also advanced at an angle of 60 ° in the same direction, the A1 grip reached the BO position, the A2 grip is halfway between the B1 and B2 positions, the A3 grip has just filed a blank
to position BZ, tools of positions B4 and BZ work, grippers A4 and A5 return to positions BZ and B4, and capture A6 approaches position B5.
FIG. 8–11 that at angles of the mechanism of 120, 180, 240, and 300 °, the same trajectories of motion take place. At a cycle angle of 300 (Fig. 11), the finished product is delivered to the output
conveyor capture A6. The feed angle, i.e., the angle through which the crank 32 passes to transfer the workpiece from one position to the next, is one third of the total angle of the cycle
and thus equal to 120. Corresponding to this filing angle, the idle angle of the copier 7 is 180 °.
The ratio of the minimum idling angle of the copier L to the feed angle
B and to the number of working positions N is determined by the following equation:
.e.5G
The effective feed angle can vary from 90 to 180, although at a feed angle of 180 ° there should be a large idle angle, which leaves little room for the copier 7 to engage. A specific example given
dP DT where DT
N -.
in Fig. 14, shows a feed angle of 120, which leaves 180 for the engagement of copier 7,
The diameter of the tienoca trajectory is determined by the formula
sin 180 ° / N sin e / r
diameter of the working positions;
the number of working positions and captures; feed angle. The diameter DP of the circumference of the workpiece grips (and a circle concentric with the circumference of the working positions, on which the centers of the transport trajectories are located) is determined by the formula:
DP DT
The most preferred is the presence of twelve grips 39 of the workpiece on the transport ring 30 (Fig.15). There may be two instrumental devices of six tool blocks each.
In this case, the blanks are fed to the first and seventh positions of B1 and B7, and the finished products are removed from the fifth and eleventh working positions of B5 and BP, while the positions of B6 and B12 remain unoccupied.
Alternatively, using only six blocks of tools, you can leave empty positions between each pair of working positions, which gives you the possibility of operational control. This can be achieved by installing a removable product handler at each empty position, the output chute being supplied with two guides (Fig. 11).
For high-performance devices, the transfer mechanism is made according to the second variant (Figs. 16, 17) and contains a transport ring 30 mounted with a bearing 44 over the crossbar 3 with the possibility of rotation around the axis of the crankshaft 21.
The device comprises a gearbox from gears 45 and 46, as well as a crank neck 47 and pins 48 for supplying rotation from the engine 49 to the transport ring 30 at the speed of rotation of the copier 7,
There are three turrets installed on the transport ring: unloading 50, transfer 51 and loading 52. Each revolving head has a shaft 53 mounted on bearings 54 and 55, and gears 56, 57 and 58. Gears 56 and 57 engage with gear wheel 59,
0 mounted on the crossbar 3, and the gear wheel 58 - with the gear wheels 56 and 57 (Fig, 16).
The angle about / between the centers of the gears 56 and 58, as well as between the centers of the 5 gears 56 and 57, is 25.87 °. Since the gear wheel 59 is stationary, the set of three gear wheels 56, 57 and 58 in the punching process, along with three revolts Q correct calipers 60, 6 and 62 rotate around it in the direction opposite to the clockwise direction, and the turret calipers 60, 61 and 62 rotate around their own axes driven by the corresponding gears. The mass of revolving calipers 60, 61 and 62 is balanced by a counterweight 63 on the opposite side of the turret calipers.
0 side of the transport ring 30.
The ring housing 10 has four working positions - G ,, G, G and G4.
On each revolving caliper 5 there are four grippers D, D, D C D, which exactly correspond to the diameters of the workpieces at the four stages of processing. The revolving calipers 60, 61 and 62 are installed so that each grip of the revolving su-port 61 loading places the blank onto the working position of the corresponding diameter. Thus, the workpiece gets to the working position G from the grip D, the turret caliper 61 with its diameter, after being pulled, is taken by the grip of the turret caliper 60 unloading and is transferred through the grip of the D turret support transfer port 62, to the grip D,., Turret caliper 61 load, which puts it in the position of T; 2. After another diameter change at position Fj, the workpiece is transferred from FI by gripping the unloading caliper 60 and gripping the revolving loading caliper 61 to the position Fj. Pos5
To further stretch to the position of the PG, the workpiece is taken from the position G by the grip D. revolving
The caliper unloading caliper 60 is placed in the position fl of the turret caliper 61 loading in position G4. Finally, after trimming at position G, the workpiece is taken up in the grab D of the turret support 60 (having the same size as the grip of the turret caliper 60) and is removed from the grab D from the stack of 64 blanks, one blank is separated at a time and transported along a circular blanking path 65 by a rotating holder 66, equipped with a socket corresponding to the gripping diameter D, and another socket located under the first and corresponding to the grip diameter D. The rotating holder 66 places the workpiece on the turret support 62 at point 67, and also removes the workpiece having the grip diameter D from the revolving support 62 and places it on the output conveyor 68. From point 67 the workpiece moves to position D along trajectory 69. From
position G to position G of the billet pezo D 4 position G and feed it are moved along the path 70, from G.
fresh billet with a diameter of capture D .j. In the position between Figures 24 and 25, the turret support 60 moves through an angle of more than 270 ° and transfer the workpiece with the gripping diameter Dz to the external position. Figures 25 and 26 illustrate the unloading of the position G 4 of the gripper D of the turret support 60, which removes the workpiece by gripping from the di
to G -. along the trajectory 71, from G to G - along the trajectory 72, from G to the point 67 - along the first half of the trajectory 69. Between the pitch circle of the gear wheel 59 and the bounding circle 73 | handling of the workpieces is performed by turret supports 61 and 60, respectively, outside the circumferential circumference. 73 — a turret caliper 62. In the proposed device, the ratio of the pitch diameter of the gear 59 to the pitch diameter of the gears 56, 57, and 58 is 3: 1. Fig. 18 shows the initial position where a billet with a gripping diameter D is gripped by a revolving caliper 62, and a billet with a gripping diameter D is ejected from a revolving caliper 62. In Fig.22, the gripper D with a revolving caliper 60 contacts a billet with a gripping diameter D in position D . During the transition from the position shown in Fig. 19 to the position shown in Fig. 20, the workpiece with the catch diameter D is transferred to the turret support 61, approaching the position G, while the workpiece with the capture diameter D is carried away from the position G with the turret caliper 60. In FIG. 20, a billet with a gripping diameter D is placed in G,
meter capture D
and the workpiece from the bottom moved to the turret support 62. When moving from the position shown in Fig. 20,
Q in the position shown in Fig. 2, the center of the revolving caliper 62 passes more than 90, and the workpiece with the gripping diameter C, “occupies the position in the caliper 62 corresponding to the position of the workpiece with the gripping diameter D (Fig. 21). It follows that in the positions shown in Figs. 21 and 22, there takes place the extraction of the workpiece with the gripping diameter Dj from the position
Q Tj, followed by the installation of a new billet with a grip diameter D. with a turret caliper 60 in position G. Between the positions shown in Fig. 22 and 23, the turret
5, the caliper 60 passes through position 180 and transfers the workpiece with a gripping diameter D to an external position. FIGS. 23 and 24 illustrate the process of extracting a preform with a capture diameter.
o D 4 positions G and filing for him
fresh billet with a diameter of capture D .j. In the position between Figures 24 and 25, the turret support 60 moves through an angle of more than 270 ° and transfers the workpiece with the gripping diameter Dz to the external position. Figures 25 and 26 show the unloading of the position G 4 by gripper D of the turret support 60, which removes the workpiece by gripping with diaQ meter D, after which the gripper
D revolving caliper 61 loads the workpiece with a diameter of capture D 4 in position G.
The device may contain two
5 instrumental devices of four blocks of tools each 1 (Fig. 27). and three turrets with calipers with an angle between them of 35 °.
0 The ratio of the diameters of the pitch circles is 2: 1. The revolving calipers 60 and 61 manipulate the blanks between the pitch circle of the gear 59 and the limiting circle 73, while the turret support 62 manipulates the blanks outside the limiting circle 73. The nine positions shown in Figs 27-35 and covering
half cycle, repeated in the second half cycle. In the position shown in Fig. 27, the blanks are placed in the device and the finished products are removed from the same position.
The device may be provided with a power supply unit 74 with a strip material supplied to operating position 75 or BO (Figures 6 and 40).
The strip material feed unit comprises a feed rod 76 and an auxiliary rod 77, onto which. a strip comes in from the foot of the bands (not shown). Feed rods 76 and 77 reciprocate under the influence of connecting rods 78 and 79 driven by a double eccentric 80 attached to a crank 81 located at the end of the drive shaft 82. The double eccentric 80 is configured to adjust its position on the crank 81 so that the feed bars 76 and 77 can work with different steps. Auxiliary feed rod 77 has a longer pitch. The shaft 82 is driven from a toothed sprocket 83, which is covered by a chain 37 (FIGS. 39, 40), transmitting movement from the driving gear sprocket 38, which also drives the toothed sprocket 36 and the shaft 35 (FIG. 1) .
The band manipulates the pneumatic device (not shown). The mechanism controlling the operation of the pneumatic device is shown jia, figs. 39 and 40. The control mechanism can be driven from any cyclic shaft, for example from shaft 35 to which gear wheel 84 is attached, drive chain 85 encloses gear wheel 86. Ratio the teeth in the gears 86 and 85 represent the number n of blanks in the strip ,. Thus, since each turn of the gear wheel 83 and, therefore, the gear wheel 84 is associated with the feeding of a strip on one workpiece, the turn of the wheels 83 and 84 is required to rotate the gear wheel 86 for a full turn.
co 86 rotates control shaft 87, on its stamp containing several koakae
in which there are several control cams on the keys, each of which is associated with corresponding pneumatic valves :. Pneumatic extension rings. The device is suitable for other metalworking operations, such as trimming, trimming, aligning, etc.
five
0
15
0
25
Q 30
35
45
50
The valves issue commands to the pneumatic cylinders (not shown), which actuate the manipulators before the strip reaches the position of the auxiliary feed rod.
Cam 88 is coupled to a valve 89 that controls the movement of the vacuum suction mechanism. The cam 90 is connected to a valve 91, controlling the movement of the transfer mechanism, which shifts the strip laterally to the trajectory of the auxiliary feed bar 77, Cam 92 is connected to the valve 93 that controls the trimming rolls. A cam 94 is connected to a valve 95 controlling the vacuum supply to the suction cups.
On Fig schematically shows a roll feed mechanism. A narrow strip 96 is mounted on the crimping mandrel 97. The pinch rolls 98 draw the strip 96, thereby rotating the mandrel 97. The turn of the clamp rolls 98 controls the movable roll 99, which is equipped with a switch to turn on and off the motor (not shown) that drives the pinch rolls 98 Another set of pinching rolls 100 with an intermittent drive from the press through an appropriate mechanism, such as a Maltese cross (not shown), feeds a strip 96 to a stretch die 101 corresponding to position B in FIG.
The strip 96 is guided along the clamp 102. When the punch 103 is in the lower position, the space between it and the clamp 102 is left for the turret grip, which removes the finished workpiece from the press through the empty BO position.
The proposed apparatus for machining parts with two variants of the transfer mechanism allows the workpieces to be manipulated during processing without impact, which makes it possible to use it at high speeds.
The tool in each of the working positions can be either a conventional exhaust, or a protruding 1 m stamp, or a combination of them, or a multiple pass.
sial extension rings. The device is suitable for other metalworking operations, such as trimming, trimming, aligning, etc.
Ф о .р м у л and
111356953
acquisitions
I. A device for machining parts, mainly hollow, containing a fixed support with a cross-piece from one of its ends and a pressure plate from the other end, an annular body with evenly spaced circumferentially holes for working positions in which plungers with a roller are installed on one end, mounted on a fixed support on the side of the pressure plate on bearings, is an end-face hollow cylindrical copier that is in contact with its profiled working end with the rollers of the slide blocks and has chick end, areas of engagement, handling, disengagement and idling, instrumental device consisting of at least three blocks of tools, each of which contains a clamp
, and coaxially mounted two tools, 25 coaxially with a cylindrical hoop, fixed respectively on the crossbar and on the plunger, a rotational drive and a transfer mechanism with grips of the workpiece, differing from the fact that the cylindrical copier is rotatably mounted and kinematically connected with rotational drive, the ring body is rigidly connected to the fixed support,
and the transfer mechanism is located on a sub-like ... turret transfer head and
Vision support and connected to a rotational drive with the possibility of synchronous movement with a cylindrical copier.
2. The device is in accordance with Claim 1, which is so that the transfer mechanism contains a transport ring, installed an eccentric ring body, connected through a system of levers to a fixed support and kinematically connected to a rotating drive with the possibility of synchronous movement with a cylindrical copier, and the grips of the workpiece are evenly spaced around the periphery of the transport ring.
3. A device as defined in Claims 1 and 2, characterized in that the latches of the tool block are made in the form of vertical fingers, and the grips of the preparation of the transfer mechanism have protrusions that are included in said fingers.
40
45
50
55
with gear ring gear.

权利要求:
Claims (1)
[1]
I
7. The device according to claim 6, about tl and - the fact that the ring body has eight working positions and two tool devices of four blocks of tools installed in series along the periphery of the ring body, as well as two sets of turrets of loading, unloading and transport, placed diametrically opposite to the circumference of the transport ring and each having four grips of the workpiece.
8. The device according to claim 6, characterized in that the annular body has twelve working positions for three instrumental devices of four blocks of normative tools arranged in series along the periphery of the annular body, as well as three sets of turrets for loading, unloading and
12
4. The device according to claims 1-3, characterized in that the annular body has six working positions, starting from the loading position and ending at the unloading position, and the transport ring has six grips of the workpiece, each of which is provided with an additional locking means placed in its center.
5. A device according to claims 1 to 3, characterized in that the annular body has twelve working positions with two loading and unloading positions located diametrically opposite to the periphery of the annular body, and the transport ring has, respectively, twelve grips of the workpiece.
6. The device according to Claim 1, characterized in that the transfer mechanism comprises a transport ring with a gear wheel mounted rotatably on a fixed
rum, and three turrets - unloading, transfer and loading - of equal diameter with uniformly spaced. circumferential grips of the workpiece, the number of which is equal to the number of working positions, and having gears, while the gears of the turret unloading and loading heads are engaged with the tester
her turret carry and
with gear ring gear.
I
7. The device according to claim 6, about tl and - the fact that the ring body has eight working positions and two tool devices of four blocks of tools installed in series along the periphery of the ring body, as well as two sets of turrets of loading, unloading and transport, placed diametrically oppositely around the circumference of the carrier and each having four grips of the workpiece.
8. The device according to claim 6, characterized in that the annular body has twelve working positions for three instrumental devices of four blocks of normative tools arranged in series along the periphery of the annular body, as well as three sets of turrets for loading, unloading and
transfer, placed around the ring-but-node for powering the band-shaped mavoy body at an angle of 120. with the material connected to the first workman, the device according to claims 1-8, has one position, equipped with a tool for stamping strip.
23
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Editor A.Makovska
Compiled by M. Merkulova
Tehred L. Serdyukova Proofreader G, Reshetnik
Order 5816/58 Circulation 731 Subscription
VNIIPI USSR State Committee for Inventions and Discoveries P3035, Moscow, Zh-35, 4/5 Raushsk nab.
Manufacturing and printing company, Uzhgorod, st. Project, 4
fi & l1

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法律状态:

优先权:

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申请号 | 申请日 | 专利标题

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US06/298,824|US4471644A|1981-09-02|1981-09-02|Apparatus for mechanically treating metal components|

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