• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A force-adjustable wire advancing mechanism for converting rotations of a motor shaft to a linear advance of a wire electrode into an arc-welding system is described. A pair of skewed rollers are carried in the front part of a two-part feed housing on a pair of radially reciprocable pistons, which in their innermost positions are effective to engage the rollers with the wire to advance the wire as the housing is rotated. In order to bring the rollers into operative position, a motion-translating element fixedly connected to the rear part of the housing and to the motor shaft is threaded onto a rear surface of the front part of the housing, and includes an integral outer conical guiding element that is cooperable with like ends of a pair of two-armed levers pivotally supported in the housing. A pair of biasing springs urge the pistons outwardly against the opposite ends of the levers, and a second pair of rollers are carried in recesses on the first ends of the levers for engagement with the opposed portions of the conical guiding element. With this arrangement, relative turning movement of the front and rear parts of the housing will cause the conical element to move axially with respect to the front part of the housing, thereby varying the force by which the levers force the skewed rollers, via the pistons, against the advancing wire.
    公开号:SU950506A1
    申请号:SU762406913
    申请日:1976-09-24
    公开日:1982-08-15
    发明作者:Альберт Самоковлиски Давид；Костадинов Гросданов Петко；Эммерих Немечек Альфред；Георгиев Пунчев Симеон；Димитров Петров Петер
    申请人:Институт По Заварьаване(Инопредприятие)；
    IPC主号:
    专利说明:

    The invention relates to a device for planetary electrode wire feed with automatic control of the pulling force used in automatic and semi-automatic installations for arc welding.
    A device for feeding electrode wire comprising a motor, input and output nozzles, and a wire feed mechanism made in the form of feed rollers placed at an angle to one another, mounted on axes of mounted | g in a spring-loaded housing connected to the motor shaft W ·
    However, this device is complex and provides automatic pressing 20 of the electrode wire coming out from under the rollers, however, in this case it is very difficult to obtain a force that does not depend on the speed of rotation of the device.
    I
    The aim of the invention is to simplify the design and improve the reliability of regulation.
    This goal is achieved by the fact that the device is equipped with a copier with a hub, which is rigidly mounted at one end on the motor shaft and the other end on the feeder housing with free movement along it, two-arm levers mounted on the housing according to the number of feed rollers, while the housing is made with holes in which the axes of the feed rollers are located.
    The copier of the device can be made in the form of a disk with working profiles according to the number of two shoulders levers, a conical holder, a cup-shaped element with internal working profiles.
    In this case, the copier is connected to the body of the feed mechanism by means of a thread. Each two-arm lever is equipped with rollers fixed at its opposite ends. When feeding soft wire
    950506 4 the device is equipped with calibrated springs associated with the axes of the feed rollers.
    In FIG. 1 schematically shows • a device for planetary feed of 5 electrode wires, a drive motor and a housing; in FIG. 2 is the same longitudinal section; FIG. 3 ~ 10 variants of execution.
    The device comprises an electric motor 1, a housing 2, in which holes are made radially to the direction of movement of the electrode wire. The openings are located in which axes 3 are located. Axes of the wire feed rollers 4 are axially attached to each axis 3 and arranged at an angle to each other .
    The other side of the housing 2 is made in the form of a hollow cylindrical part, equipped with a thread 5, made on 20 of the outer surface, and with which a copier 6 is attached.
    In addition, two-arm levers 7 are mounted on the body 2, attached with the help of the axes 8 to the body 25 2. One end of the levers 7 is located on the heads of the axles 3, and the other is made with a roller 9 in contact with the copier 6.
    To ensure continuous con- tact ends 30 of two-armed levers 7 with the cam 6 and the axis 3, the latter are provided with blind holes in which springs 10 are installed permanently crimping axis 3 by a double-arm rycha- 3J din 7 ·
    The device is closed by two covers moving relative to each other, namely the front cover 11 and the back cover 12. The back cover 40 is attached with screws 13 to the head of the guide cone 6, while the front cover 11 is attached with screws 14 to the housing 2.
    For the correct direction (centering ~ 45 ) of the electrode wire, an inlet 15 and an outlet 16 nozzle are provided. The inlet nozzle 15 is fixedly fixed in the central hole made in the housing 2, while the exhaust nozzle 16 is fixedly fixed in the hole made in the front cover 11. Both nozzles are mounted coaxially with the shaft of the motor 1 (schematically shown in Fig. 1), 55 rigidly associated with the copier 6.
    One of the embodiments of this design is (Fig. 3) the connection of the copier with the motor shaft with the help of the hub 17. The copier can be made in the form of a conical holder (Fig. 1), in the form of a disk with working profiles according to the number of two-arm levers (Fig . 4). In another embodiment of the invention (Fig. 5), the profile element 6 may have a bowl. shaped, on the inner periphery of which are made working profiles 18 in contact with two shoulders levers 7 · Here, as in another embodiment, the copier of its rear cup-shaped part partially surrounds the “-casing 2 and serves as the back cover of the device. In this case, the two-arm levers 7 have an arcuate shape, are equipped at both ends with rollers and are placed in the cavity of the cup-shaped element. When the welding wire is predominantly soft, the device is equipped with calibrated springs 19. The guide cone is limited during its axial movement relative to the housing 2 by stops 20.
    The springs 19 bind to each other the axis of the feed rollers.
    In another embodiment (FIG. 7), calibrated springs 19 are associated with. two elements 21, which radially move relative to the housing 2, have slots for the axles 3 and are connected by springs 19 · Radially movable intermediate elements 21 are connected to the device by means of a dovetail groove, which ensures the movement of these elements relative to each other. Each axis is located in the nest made in elements 21. If two radially movable intermediate elements 21 are conventionally called upper and lower elements, then one axis is fixed on the upper radially movable element and the other axis is fixed on the lower radially movable element.
    The ends of the two-arm levers are in contact with the free ends of the elements 21.
    A device for feeding the electrode wire operates as follows.
    When the motor shaft rotates in the direction corresponding to the direction W 2 of the electrode wire, the copier 6 moves along the thread connecting it to the housing 2 in the opposite direction to W ^, i.e., it extends outward. As a result of this movement, the two-arm levers 7, mounted on the axles 8, press the pistons 3 inward and, therefore, the wire feed rollers 4 begin to compress the electrode wire while rotating around their axes. With the rotation of the rollers 4, the housing 2 also begins to rotate, which means the beginning of the movement of the electrode wire into the welding hose. Due to the resistance arising during the movement of the wire in the hose, the rotation of the rollers slows down, along with this, the housing 2 also slows down in comparison with the rotation of the copier 6 and the revolutions of the engine 1. At the same time, the copier 15 extends outward. The extension to the outside is accompanied by the rotation of the two-arm levers 7, which provide additional pressure on the axis 3 and, therefore, on the wire feed rollers 420. The rollers 4 in turn exert additional pressure on the electrode wire until the resistance in the hose is overcome. 25
    After that, the revolutions of the casing 2 and the copier 6 are equalized, and therefore the relative axial displacement of the casing is equalized with respect to the cone. thirty
    Thus, when the resistance in the welding hose changes, the pushing force is automatically controlled, which is especially necessary in the actual operating conditions of 3J welding equipment.
    When the motor is turned off, the copier 6 stops. At the same time, the housing 2, two shoulders levers 7, axles 3 and wire feed rollers 4 4 continue to move under the action of inertia. As a result of this, the housing 2 moves toward the copier 6, and the two shoulders. The arms 7 release the axles 3, which, together with the rollers 4, are displaced outward by the action of 4 springs 10, as a result of which the electrode wire is cut off. If the device has calibrated springs 19, then when the shaft of the electric motor 1 and, accordingly, the copier 6 are rotated, the housing 2 and its associated parts begin to move to the copier 6 until the latter goes all the way with the stops 20. As a result, the axles 3 are released from the pressure of the two shoulders levers 7 And under the influence of the force of the compressed calibrated springs 19 they move outward, while the feed rollers 4 begin to press the welding electrode with a pressure force that is equal to the action of the force of the calibrated springs 10. When the electric motor 1 stops the rotation of the copier. The housing 2 and related parts continue to rotate due to the existing inertia forces, separating from the copier 6 and the ends of the brittle levers 7 in contact with it are removed from its surface, which leads to the rotation of the latter around the pressing axis 3 of the hinge 8 and the correspondingly removed feed rollers from welding electrode.
    At increased feed speeds, between the feed rollers and the welding electrode, the friction coefficient decreases, as a result of which the feed force also decreases.
    In order to ensure the possibility of eliminating the undesirable effects of this phenomenon, it is necessary to increase the pressure of the roller clamps on the welding electrode. This is achieved by the mass of radially movable elements 21, which at increased feed speeds increase the centrifugal forces and thereby the pressure of the feed rollers on the welding electrode, whereby the magnitude of the initial feed force is again achieved.
    The principle of operation of the device according to the second embodiment, i.e., with intermediate elements, is similar to working with calibrated springs. Before turning on the electric motor, the springs 19 are compressed · under the influence of elements 21, moved by means of two-arm levers 8, while the feed rollers are removed from the welding electrode 1.
    When the motor 2 is turned on, the casing 3 and the guide cone approach each other, the two shoulders levers 8 release the radially movable elements 21, the latter move outward under pressure from the calibrated springs 10, and the feed rollers 4 press the welding electrode.
    权利要求:
    Claims (3)
    [1]
    The invention relates to a device for the planetary supply of electrode wire with an automatic pulling force control, used in automatic and semi-automatic-arc-welding installations. A device for feeding the electrode wire, containing a motor, inlet and outlet nozzles, and a wire feeding mechanism, made in the form of feed rollers arranged at an angle to each other, mounted on axles mounted in a spring-loaded housing, are connected to the shaft of the motor 1. However, this device is complicated and provides automatic pressing of the electrode wire coming out from under the rollers; however, in this case it is very difficult to obtain a force that does not depend on the rotation speed of the device. The aim of the invention is to simplify the design and increase the reliability of regulation. The goal is achieved by the fact that the device is equipped with a copier with a hub that is rigidly mounted at one end on the motor shaft and at the other end on the body of the feed mechanism with the possibility of free movement along it, with two shoulders levers fixed to the body according to the number of feed rollers; made with holes in which the axes of the feed rollers are placed. The copier of the device can be made in the form of a disk with working profiles according to the number of double-arm levers, a tapered yoke, a cup-shaped element with internal working profiles. In this case, the copier is connected to the feed mechanism housing by means of a thread. Each double-arm lever is equipped with rollers fixed at its opposite ends. When feeding soft pr-roll, the device is equipped with calibrated springs connected with the axes of the feed rollers. FIG. 1 schematically shows a device for the planetary feeding of an electrode strip, a drive motor and a housing; in fig. 2 - t, longitudinal section ;, in FIG. variants of execution. The device contains an electric motor 1, body k, in which the radially direction of movement of the electrode wire is provided with holes in which the axes 3 are located. Feed wire rollers C, angled to each other, are axially attached to each of the axes 3. The other side of the body 2 is made in the form of a hollow cylindrical part provided with a thread 5, made on the outer surface, and with which the copier 6 is attached. In addition, two shoulders levers 7 attached to the body 2 are attached to the body 2. One end of the arms 7 has, on the heads of the axles 3, and the other is made with roller 3 in contact with the cylinder 6. To ensure constant contact of the ends of the two shoulder arms 7 with the cam 6 and the axis 3, the latter are provided with blind holes in which installed spring 10, constant nn pressing axles 3 to two shoulders levers 7- The device is closed with two covers moving relative to each other, namely the front cover 11 and the rear cover 12. The rear cover is fastened with screws 13 to the head of the guide cone 6, while the front cover 11 is fastened with screws 1 to housing 2. For proper direction (centering) of the electrode wire, an inlet 15 and outlet 16 nozzles are provided. The inlet nozzle 15 is fixedly mounted in the central hole made in the housing 2, while the exhaust nozzle 16 is fixedly fixed in the hole made in the front cover 11 in front of it. Both of the nozzles are mounted coaxially with the shaft of the electric motor 1 (schematically shown in Fig. 1) rigidly connected with copier 6. One of the embodiments of this design is (Fig. 3) connecting the copier with the motor shaft using the hub 17. The copier can be made in the form of a tapered yoke (Fig. 1), in the form of a disk with working profiles along number two leverage leverage (Fig. +). In another embodiment of the invention (FIG. 5), the profile element 6 may have a cup. shaped, on the inner periphery of which working profiles 18 are made, which are in contact with double-arm levers 7- Here, as in another embodiment, a copier of its back cup-shaped part partially surrounds Case 2 and serves as a rear cover of the device. In this case, the two shoulders levers 7 are arcuate, provided with rollers at both ends and placed in the cavity of the cup-shaped element. When supplying welding wire, the blocks are predominantly soft, the device is supplied with calibrated springs 19. The guide vane is limited during its axial movement relative to the housing 2 by limiters 20. The springs 19 interconnect the axes of the feed rollers. In another embodiment (Fig. 7), the calibrated springs 19 are connected to two elements 21, which radially move relative to the housing 2, have slots for the axles 3 and are connected by springs 19. The radially movable intermediate elements 21 are connected to the device case by means of a groove in dovetail, which provides movement of these elements relative to each other. Each axis is located in a nest made of 8 elements 21. If we conventionally call two radially movable intermediate elements 21 as the upper and lower elements, then one axis is fixed on the upper radially movable element, and the other axis is fixed on the lower radially movable element. I In this case, the ends of the double-shouldered arms 7 are in contact with the free ends and elements 21. The device for feeding the electrode wire works as follows. When the motor shaft rotates in the direction corresponding to the electrode wire feeding direction W2, the copier 6 moves along the thread connecting it with the body 2 to 8 in a direction opposite to the direction W, i.e., it moves outward. As a result of this movement, the two shoulders levers 7, mounted on axles 8, press the pistons 3 inward and, consequently, the feed rollers k, begin to compress the electrode wire, simultaneously rotating around their axes. When the rollers k are rotated, the housing 2 also begins to rotate, which means the beginning of the movement of the electrode wire into the welding hose. Due to the resistance caused by the movement of the wire in the hose, the rotation of the rollers slows down, and at the same time, the body 2 also slows down its rotation compared to the rotation of the copier 6 and the engine 1. The copier is pushed outward. The extension to the outside is accompanied by rotation of the double-blade levers 7, which exert additional pressure on axis 3 and, therefore, on the feed rollers Rollers k, in turn, exert additional pressure on the electrode wire until they pop up until resistance in the hose is overcome. After this, the turns of the hull 2 and to the feast 6 are equalized, and therefore the relative axial displacement of the hull is equalized with respect to the horn. Thus, when the resistance changes in the welding hose, the automatic regulation of the pushing force takes place, which is especially necessary in real conditions of welding equipment operation. When the motor is turned off, the copier 6 stops. At the same time, the housing 2, the double shoulders 7, the axis 3 and the wire feed rollers k continue to move under the action of inertia. As a result, building 2 moves toward copier 6, and two shoulders. The levers 7 release the axles 3, together with the rollers k under the action of the springs 10, are shifted outward, as a result of which the supply of the electrode wire is stopped. If the device has tared springs 19, then when the shaft of the electric motor 1 and respectively copier 6 rotates, the case 2 and the associated parts begin to move to the copier 6 until the latter stops against the stop with the stops 20. As a result, the axis 3 is released from the pressure of the two shoulders levers 7 And under the influence of the force of the compressed calibrated springs 1 move outwards, while the feed rollers C begin to press the welding electrode with a pressure force that is equal to the force of the calibrated springs 10. rodvigatel 1 stops rotation of the copier. The housing 2 and the parts connected with it continue to rotate due to the existing inertia forces, separated from the copier 6 and the ends of the Druplech levers 7 in contact with it move away from its surface, which causes the latter to rotate around the pressing axis 3 of the hinge 8 and respectively feed rollers from the city of the arc electrode. At higher feed rates, the friction coefficient decreases between the feed rollers and the welding electrode, as a result of which the feed force also decreases. In order to ensure that the undesirable effect of this phenomenon can be eliminated, it is necessary to increase the pressure of the rollers against the welding electrode. This is achieved by a mass of radially movable elements 21, which, at elevated feed rates, increase the centrifugal forces and thereby the pressure of the feed rollers on the welding electrodes, thereby again the value of the initial feed force is reached. The principle of operation of the device according to the second variant, i.e., with intermediate elements is similar to working with calibrated springs. Before switching on the electric motor, the spring 19 is pressed under the influence of the elements 21 moved by double shoulders 8, while the feed rollers are removed from the welding electrode 1. When the electric motor 2 is turned on, the housing 3 and the guide cone approach each other, the double shoulders 8 free radially movable elements 21 , the latter, under pressure, of the force of the calibrated springs 10 move outwards, and the feed rollers + press the welding electrode. Claim 1. Device for supplying welding wire, comprising a motor, inlet and outlet sogla and a wire feed mechanism, made in the form of feed rollers mounted at axes mounted on axles mounted in a spring-loaded housing connected to the motor shaft , characterized in that, in order to simplify the design and increase the reliability of the adjustment, it is equipped with a copier with a hub, which is rigidly mounted at one end on the motor shaft, and at the other end on the mechanism case cottages with the possibility of moving freely along it audio, two-armed "levers, hinged on the body by the number of feed rollers, wherein the body is formed with apertures in which are located the axis of the feed roller.
    [2]
    2. The device according to claim 1, which is a copy of the fact that the copier is connected to the body of the mechanism with threads using a thread.
    [3]
    3. The device according to claim 1, of which is that each two-arm lever is equipped with rollers fixed at its opposite ends, one of which is installed with the ability to interact with the cam and the other is installed with the possibility of acting on the axis of the corresponding feed roller. . The device according to claim 1, about tl and often because the copier is made in the form of a tapered yoke. 5. The device according to claim 1, characterized in that the copier is made in the form of a disc with working profiles according to the number of two shoulders. 6. The device according to claim 1, characterized in that the copier is made in the form of a cup-shaped element with internal working profiles. 7. The device according to paragraphs. 3 and 6, characterized in that the two shoulders levers are arcuate and placed in the cavity of the cup-shaped element. 8. The device according to claim 1, characterized in that, in order to increase the stability of the supply of predominantly soft welding wire, it is provided with tared springs associated with the opposite axes of the feed rollers. 9. The device according to claim 1, characterized in that, in order to increase the stability of the feed at elevated speeds by using centrifugal forces to compensate for the coefficient of friction, the device is provided with intermediate elements placed in the openings of the body for reciprocally movable connected springs, and one of the ends interacting with two-arm levers, and the other with the axes of the feed rollers, while the foldable ends of the axes are placed in the slots of the intermediate elements. Sources of information taken into account in the examination 1. UK patent number 1286396 Cl. 23 K 9/12, 08.23.72 (prototype).
    .t
    18
    类似技术:
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    同族专利:
    公开号 | 公开日
    DE7629931U1|1979-11-15|
    DE2643103A1|1977-04-07|
    BG23055A1|1977-07-12|
    CH609899A5|1979-03-30|
    US4098445A|1978-07-04|
    DE2643103C3|1979-08-09|
    DE2643103B2|1978-12-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3014519A|1959-05-25|1961-12-26|L & B Welding Equipment Inc|Drive assembly|
    CH505686A|1969-04-17|1971-04-15|Freudenberg Carl Fa|Leather fiber material and use of the same for reinforcing footwear|
    US3738555A|1972-07-07|1973-06-12|Hobart Brothers Co|Apparatus for moving wire|CH616612A5|1975-09-24|1980-04-15|Inst Savarjavane|
    BG24442A1|1975-09-24|1978-03-10|Iski Samokovli|Device for modular feed of electrode bodies at great distances|
    IL102935A|1992-08-25|1996-10-31|Planetics Welding Systems Ltd|Planetary feeder heads|
    US5816466A|1996-04-19|1998-10-06|The Lincoln Electric Company|Wire feeding apparatus|
    US6388234B1|2000-05-25|2002-05-14|Illinois Tool Works Inc.|Apparatus and methods for directing and feeding wire|
    US7026574B2|2003-07-22|2006-04-11|Lincoln Global, Inc.|Wire gripper for a drive unit of a wire feeder|
    US8878097B2|2008-08-18|2014-11-04|Lincoln Global, Inc.|Wire feeder with curved force generating element for better positioning of an adjusting mechanism|
    US8920566B2|2010-12-30|2014-12-30|United Technologies Corporation|Wire feed pressure lock system|
    JP5852832B2|2011-09-30|2016-02-03|株式会社ダイヘン|Wire feeder|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    BG33770A|BG23055A1|1975-09-24|1975-09-24|
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