• 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 method of separating adherends (12) comprising placing said parts (12) in a vibratory apparatus (100) and vibrating said members (12) by contacting them with a vibrating vibratory head (102) of said vibrator (100) which exposes said portions (12). 12) both vibrates and holds them. In one embodiment, the parts are laminates (12) stacked together in a stack (10) of laminates (12), and vibrating the laminate stack (10) involves contacting the laminate stack (10) with a tool (104) of a vibratory head (102) the vibrating apparatus (100) which vibrates to vibrate the laminates (12) and also to hold the laminates (12) with the tool (104) as it vibrates the laminates (12).
    公开号:CH706293B1
    申请号:CH01294/13
    申请日:2012-02-06
    公开日:2016-07-15
    发明作者:Coto Guillermo；k buckley Richard；Doud Glenn；Aguilera Galicia Fernando
    申请人:Branson Ultrasonics Corp；
    IPC主号:
    专利说明:

    This application claims priority to US Utility Model Application No. 13 / 366,479 filed on Feb. 6, 2012, and US Provisional Application No. 61 / 440,931 filed on Feb. 9, 2011. The entire disclosures of the above applications are incorporated herein by reference.
    area
    The present invention relates to the separation of parts which stick together.
    background
    In some manufacturing processes, parts may be processed during some operations and later separated into a product prior to use of a part. These operations, in which the parts are processed together, can cause the parts to stick together. For example, they may stick together in a stack after they are stacked together and heat treated, with the heat treatment causing the parts to stick together in the stack.
    The parts must then be separated before being subsequently used, as in the manufacture of a product which incorporates one or more of the parts. A typical method of separating adherends, such as in a stack of parts, involves hitting the stack of parts with a force sufficient to cause the parts to break apart. For example, hitting the parts stack with a rubber mallet, tapping the stack against a surface such as a table or the like. Among other things, this method causes ergonomic and waste problems.
    Some products are at least partially made by lamination. That is, a plurality of laminates are attached to each other. For example, stators used in electric motors are often made of laminates which are secured together. The laminates may be stamped from a sheet of ferromagnetic material, such as ferromagnetic steel or iron. Once the laminates are stamped for a stator, they are stacked (if they are not already stacked from the stamping process) and heat treated. In this regard, the laminate stack may include laminates for multiple stators. It should be understood that laminates may also stick together in a stack as a result of other manufacturing processes than heat treatment and they must be separated before being laminated together. The laminates are then separated by the application of manual force as described above. In addition to the ergonomic and waste problems that this process causes, it can cause some degradation of the ferromagnetic properties of the laminates.
    Presentation of the invention
    According to the present invention, adhering parts in a stack are separated by arranging the parts in a vibrating apparatus and vibrating the parts stack with a vibrating head of the vibrating apparatus to separate them and also to hold the parts with the vibrating head when the parts are vibrated ,
    In one embodiment, the parts are laminates stacked together in a stack of laminates, and vibrating the laminate stack involves contacting the laminate stack with a tool of a vibrating head of the vibrating device, which vibrates to vibrate the parts and also with the vibrating head Tool to hold the parts when it vibrates the parts.
    In one embodiment, the laminate stack will lie on a longitudinal side in the vibration device and this longitudinal side of the laminate stack is contacted with the tool.
    In one embodiment, the vibrator has a table with an anvil mounted therein on which the stack of laminates is placed. The laminate stack is arranged on its longitudinal side on the anvil. A front side of the anvil contacting the laminate stack has a series of edges running longitudinally therealong, each edge extending laterally across the anvil front side. The edges grip the individual laminates as the laminate stack vibrates to facilitate the separation of the laminates. In one embodiment, the series of edges is a series of serrations. In one embodiment, the series of serrations are sawtooth teeth. In one embodiment, the row of edges is provided with the front of the anvil knurled.
    In one embodiment, alternatively or additionally, the tool of the vibrating head has a series of edges running longitudinally therealong, each edge extending laterally across the tool front and the edges of the front of the tool gripping the laminates when the stack of laminates is vibrated to facilitate the separation of the laminates.
    In one embodiment, the parts are a stack of disks that are stacked together. The disk stack is placed in a vibrating device and vibrated with a tool of a vibrating head of the vibrating device and also held with the tool. In one aspect, the discs have a central bore. In one aspect, the tool includes a shaft, and locating the discs in the vibrator includes locating it on the shaft, with the shaft extending through the central bores of the discs. Vibrating the disks involves vibrating the vibrating head to vibrate the shaft which vibrates the disks arranged on the shaft.
    In one embodiment, the vibration head vibrates at a frequency in the range of 60 Hz-320 Hz.
    In one embodiment, the vibration head vibrates at ultrasonic frequencies at a frequency in the range of 10 kHz to 60 kHz.
    Brief description of the drawings
    The present invention will be more fully understood from the detailed description and the accompanying drawings, wherein:<Tb> FIG. 1 <SEP> shows a laminate stack in a vibration apparatus according to an embodiment of the present disclosure;<Tb> FIG. Fig. 2 shows an anvil tool for the vibration apparatus of Fig. 1; and<Tb> FIG. Figure 3 shows another anvil for the vibratory apparatus of Figure 1;<Tb> FIG. 4 <SEP> shows a disk stack in a vibration apparatus according to an embodiment of the present disclosure; and<Tb> FIG. 5 <SEP> shows a disk stack in a vibration device according to a variant of the embodiment of FIG. 4.
    Precise description
    The following description of the preferred embodiment (s) is essentially exemplary in nature and is in no way intended to limit the invention, its application, or uses.
    Fig. 1 shows a laminate stack 10 of laminates 12, which is arranged on a longitudinal side 14 in a vibration device 100. The laminate stack 10 is formed from a number of individual laminates 12 (only three of which are identified by reference numerals 12 as guide lines) which are stacked together. For example, when the laminates 12 are used to form stators for an electric motor, laminates 12 are heat treated after being stacked together in a laminate stack 10. Due to the heat treatment, the laminates 12 stick together as discussed above. It should be understood that laminates are used to make products as stators for electric motors, and that they can stick together in a stack for reasons other than heat treatment. The vibratory apparatus 100 may illustratively be a device similar to a vibration welder such as those disclosed in US Pat. No. 3,920,504 to Show et al. for "Friction Welding Apparatus" and US 4,352,711 to Toth for "Friction Welding Apparatus", which are modified as discussed below.
    The vibratory apparatus 100 includes a vibrating head 102 which illustratively may include a tool 104 which contacts a longitudinal side 14 of the laminate stack 10 and thus contacts and holds the individual laminates 12 as they are vibrated. Cylinders 106, which may be hydraulic, electrical or pneumatic, are mounted on a base 108 and secured to a table 110.
    In the illustrative embodiment shown in Figure 1, the laminate stack 10 lies on a longitudinal side 14 on the table 110. Cylinders 106 move the table 110 against the vibrating head 102. The laminate stack 10 is pressed against the vibrating head with a force which is sufficient so that the vibrating head 102 can vibrate the laminate stack 10 to separate the laminates 12 as well as hold them together, but is insufficient to weld them together. It should be understood that the vibratory apparatus 100 could alternatively be configured so that the table 110 remains stationary and the vibrating head 102 is lowered to bring the tool 104 into contact with the longitudinal side 14 of the laminate stack 10. It should also be understood that the vibratory apparatus 100 could be arranged to contact the laminate stack 10 from a different direction by the vibratory head 102 than from above the laminate stack 10, such as, rather than limitation, from underneath the laminate stack 10.
    An anvil 112 is attached to the top 114 of the table 110 and can be recessed therein. The anvil 112 has a front side 116 with a series of edges 118 spaced along it. Each edge 118 extends laterally across the anvil front 116, as best shown in FIG.
    When the laminate stack 10 is placed on the anvil 112, it extends longitudinally along the anvil front 116 and the edges 118 of the anvil front 116 extend laterally across the laminate stack 10.
    According to one embodiment, each laminate 12 is annular (or quasi annular) and the laminate stack 10 is thus cylindrical (or quasi-cylindrical). Edges 118 thus extend across the laminate stack 10 perpendicular to a longitudinal axis of laminate stack 10. As the laminate stack 10 is vibrated by the vibratory head 102, edges 118 will engage in gaps between edges (as by protrusion into the gaps) of adjacent laminates 12 in FIG the laminate stack 10 and indeed engage the laminates 12, thereby facilitating the separation of the laminates 12. This also has the effect of shaking the laminates 12 and thus facilitating their separation.
    The series of edges 118 may illustratively be a series of serrations, which may be illustratively a series of sawtooth teeth, as shown in FIG. The row of edges 118 may be provided by the anvil front 116 with a knurled surface 300 as shown in FIG. It should be understood that the foregoing are examples and are not exhaustive of how the edges 118 may be provided. In this regard, the edges 118 may be provided by forming an anvil front side 116 in any manner that provides edges that engage the laminates 12 of the laminate stack 10, such as by protruding into gaps between edges of adjacent laminates 12. In this regard It should be understood that each edge need not be a continuous edge, but could be, for example, a series of dots, fingers, or the like, and provided with a roughened surface by a tool face 116.
    It should be understood that the edges 118 can illustratively be based on the geometry of the laminates 12 in the laminate stack 10 so that the edges 118 optimally engage the laminates 12 in the stack 10. For example, the spacing of the edges 118 in the anvil front side 116 may illustratively correspond to the thickness of the laminates 12. That is, adjacent edges 118 are spaced from each other by a distance that is the same as the thickness of a laminate 12.
    The tool 104 of the vibratory head 102 may also include similar edges (tool 112, as shown in FIG. 1 as a silhouette).
    Illustratively, the vibration head 102 vibrates in the range of 60 Hz-320 Hz. It should be understood that these frequencies are exemplary and that the vibration head 102 can vibrate at other frequencies. In this regard, the optimum frequency may be determined heuristically, for example, and may vary depending on the laminates and the degree to which the laminates 12 in the laminate stack 10 stick together after the heat treatment.
    It should also be understood that the vibration device 100 may also be an ultrasonic vibration device, such as a modified ultrasonic welder, so that the horn of the ultrasonic device, which would include the vibration head 102, contacts the laminate stack 10 with sufficient force to vibrate the laminates 12, which detach from each other as well as hold them together, but does not have enough force to weld them. A prior art ultrasonic welder that can be modified in this regard is disclosed in US 2008 0054 051 for ultrasonic welding using amplitude profiling. According to one embodiment of the present disclosure, the vibrating head would illustratively vibrate at a frequency of about 10 kHz to 60 kHz.
    Separating the laminates in a laminate stack by contacting the stack with a vibrating head according to what has been mentioned above (which may be referred to as "vibration-isolated laminates") enhances the efficiency of the electric motor having a stator connected to the vibration-separated laminates is made. Since the laminates in the stack of laminates are not separated by the "manual laminate break" approach, the laminates are not subjected to this kind of abrupt force inherent in this approach. Thus, there is little degradation of the ferromagnetic properties of the laminates, and core loss measurements of stators made with the vibration-separated laminates are improved. Further, by holding the parts with the vibration head as they are vibrated, the possibility of damage to parts due to their bunching up when not held together is reduced.
    While the foregoing has been described in the context of the separation of laminates in a laminate stack, it should be understood that a vibratory apparatus according to the above may be used to separate other types of parts used in the manufacture of products where a majority of the parts must be glued together in a certain way and separated before being used to make products.
    As another example, and not by way of limitation, with reference to FIG. 4, the disks 400 in a stack 402 of disks 400 may be separated by placing the stack 402 of disks 400 in a vibratory apparatus 404 and vibrating the stack 402 of disks 400 In Fig. 4, the vibrator 404 includes a vibratory head 406 with a tool 408. In the embodiment shown, the tool 408 includes a vertical shaft 410. The stack 402 of discs 400 is placed on the tool 408 with the shaft 410 passing through central bores 412 extends in the discs 400. To separate the discs 400 in the stack 402, the vibrating head 406 is vibrated by the vibrator 404, causing the shaft 410 to vibrate. The discs 400 are in contact with the vibration shaft 410 and the vibration causes the discs 400 in the stack 402 to break apart. The shaft 410 also holds the discs 400 together. For example, discs 400 may be grinding discs rather than limitation.
    Fig. 5 shows a variation of Fig. 5 wherein the vibratory head 406 (Fig. 4) comprises a tool 500 having a horizontal shaft 502. In the embodiment of Fig. 5, the stack 402 is on disks 400 on the tool 500 is disposed with the horizontal shaft 502 extending through central bores 412 of the discs 400.
    While in the examples described above, the parts stack is held by the tool of the vibration head, which contacts a surface of the parts stack, it should be understood that the tool can contact more than one surface of the parts stack to hold them. By way of example and not limitation of the embodiment of FIG. 5, the stack 402 of disks 400 may also extend across the horizontal shaft 502 and be held by opposed brackets 504 which support the horizontal shaft 502.
    权利要求:
    Claims (10)
    [1]
    A method of separating adherends (12), comprising placing said parts (12) in a vibratory apparatus (100) and vibrating said members (12) by contacting them with a vibrating vibrating head (102) of said vibrator (100), said apparatus Parts (12) both vibrates and holds them.
    [2]
    2. The method of claim 1, wherein the parts (12) are laminates (12) stacked in a laminate stack (10), and vibrating the parts (12) with the vibration device (100) contacting the laminate stack (10). with the vibration head (102) included.
    [3]
    3. The method of claim 2, wherein each laminate (12) is annular or quasi-annular and the laminate stack (10) thus forms a cylinder or a quasi-cylinder and wherein the laminate stack (10) on the longitudinal side (14) of the cylinder in the Vibrating device (100) is located so that the vibrating head (102) contacts the longitudinal side (14) of the laminate stack (10).
    [4]
    4. The method of claim 3, wherein the laminate stack (10) on an anvil (112) in a table (110) of the vibration device (100) on the longitudinal side (14), wherein the anvil (112) has a front side (116) a series of edges (118) longitudinally spaced therealong, each edge (118) extending laterally across the anvil face (116) so that the edges (118) of the anvil face (116) are in gaps between edges of adjacent laminates (12) of the laminate stack (10) engage when the vibrating head (102) vibrates against the laminate stack (10) to shake the laminates (12) so that the separation of the laminates (12) of the laminate stack (10) facilitates is.
    [5]
    The method of claim 3 or 4, wherein the longitudinal side (14) of the laminate stack (10) contacts a tool (104) of the vibratory head (102), the tool (104) having a tool face with a series of edges (118). spaced longitudinally along the front of the tool, each edge (118) extending laterally across the tool face so that the edges (118) engage in gaps between edges of adjacent laminates (12) of the laminate stack (10) when the vibrating head (12) 102) vibrates against the laminate stack (10) to vibrate the laminates (12), thereby facilitating the separation of the laminates (12) of the laminate stack (10).
    [6]
    The method of claim 1, wherein the parts (12) are discs (400) stacked together in a stack (402), the discs (400) having central bores (412) therein, and the vibratory device (404) A vibration head (406) with a tool (408), wherein the tool (406) has a shaft (410), and arranging the discs (400) in the vibration device (404) their arrangement on the tool (408) with the shaft (410) extending through the central bores (412) of the discs (400), and vibrating the discs (400) includes vibrating the vibrating head (406) with the vibrator (404) to move the tool (408). to vibrate the shaft (410) and the discs (400) which are arranged and held on the shaft (410)
    [7]
    A method according to any one of claims 1 to 7, wherein the vibrating head (102, 406) and the parts (12) vibrate at a frequency in the range of 60 Hz to 320 Hz, or at a frequency in the range of 10 kHz to 60 kHz.
    [8]
    A vibratory apparatus (100) for performing the method according to any one of claims 2 to 5 or claim 7 for separating adherends (12), said members (12) being laminates (12) stacked together in a laminate stack (10) are, comprising: a vibration head (102);a table (110) including an anvil (112) on which is received a longitudinal side (14) of the laminate stack (10), the anvil (112) having a series of edges (118) extending along a front side (116 ) of the anvil (112) and each edge (118) extends laterally across the anvil front surface (116);wherein the vibrating device (100) contacts a longitudinal side (14) of the laminate stack (10) with the vibrating head (102) and vibrates the vibrating head (102) against the longitudinal side (14) of the laminate stack (10) and vibrates the laminates (12) with the vibrating head (102), wherein the edges (118) of the anvil front side (116) engage in gaps between edges of adjacent laminates (12) of the laminate stack (10) as the vibrating vibration head (102) vibrates against the laminate stack (10) To shake laminates (12), so that the separation of the laminates (12) of the laminate stack (10) is facilitated.
    [9]
    The vibratory apparatus (100) of claim 8, wherein the vibrating head (102) includes a tool (104), the tool (104) having a tool face with a series of edges (118) longitudinally spaced along the tool face, wherein each edge (118) extends laterally across the front of the tool, the edges (118) of the tool (104) engaging in gaps between edges of adjacent laminates (12) of the laminate stack (10) as the vibrating vibration head (102) abuts Laminate stack (10) vibrates to vibrate the laminates (12), so that the separation of the laminates (12) of the laminate stack (10) is facilitated.
    [10]
    The vibration apparatus (100) according to claim 8 or 9, wherein the vibration head (102) is configured to vibrate at a frequency in the range of 60 Hz to 320 Hz, or at a frequency in the range of 10 kHz to 60 kHz ,
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    法律状态:
    2018-04-13| NV| New agent|Representative=s name: IP PARTNERS J. WENGER, CH |
    2020-09-30| PL| Patent ceased|
    优先权:
    申请号 | 申请日 | 专利标题
    US201161440931P| true| 2011-02-09|2011-02-09|
    US13/366,479|US8702904B2|2011-02-09|2012-02-06|Method and apparatus for separating laminations|
    PCT/US2012/023930|WO2012109123A2|2011-02-09|2012-02-06|Method and apparatus for separating laminations|
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