Clamping and positioning device and motor welding equipment

Abstract

The utility model belongs to the technical field of motor tools, and particularly relates to a clamping and positioning device and motor welding equipment. The clamping and positioning device comprises a clamping structure, the clamping structure comprises a clamping carrying table, a first clamping plate with a containing groove and a second clamping plate located in the containing groove, the first clamping plate and the second clamping plate are both slidably connected with the clamping carrying table, and at least part of a target object is located in the containing groove; and the driving structure is connected with the clamping carrying table and used for driving the first clamping plate and the second clamping plate to move oppositely, and the first clamping plate and the second clamping plate abut against the surfaces of the two sides of the target object correspondingly so as to clamp the target object. According to the busbar clamping device, through face-to-face contact between the busbar and the first clamping plate or the second clamping plate, stress on the busbar is even, the busbar can be stably clamped, the busbar is not prone to deformation, the busbar can be effectively clamped, and meanwhile the reliability of the busbar is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor tooling, and particularly relates to a clamping and positioning device and a motor welding device. Background Art

[0002] With the rapid development of the new energy vehicle industry, flat wire motors have been widely used. In a flat wire motor, a bus bar plays a key role in electrical connection and current distribution. With the increasing demands for new energy vehicles and high-efficiency motors, the technical requirements for the bus bar are also getting higher and higher. Generally, the connection between the stator welding end and the bus bar is fixed by screws, and the bus bar is fixed by multiple bolts abutting against it, so as to facilitate the subsequent welding of the bus bar and the stator.

[0003] However, since the shape of the bus bar is generally irregular, mostly in the shape of an arc, when locking and positioning with bolts, a large clamping force is required, and the bolts are arranged close to the welding position, resulting in uneven force distribution on the bus bar, which easily causes damage and deformation of the bus bar, thereby reducing its working reliability and service life. Summary of the Utility Model

[0004] The purpose of the embodiment of the present application is to provide a clamping and positioning device, aiming to solve the problem of how to effectively clamp the bus bar and improve its reliability.

[0005] To achieve the above purpose, the technical solution adopted in the present application is:

[0006] In the first aspect, a clamping and positioning device is provided for clamping a target object, and the clamping and positioning device includes:

[0007] A clamping structure, including a clamping carrier, a first clamping plate with a receiving groove, and a second clamping plate located in the receiving groove. Both the first clamping plate and the second clamping plate are slidably connected to the clamping carrier, and at least a part of the target object is located in the receiving groove; and

[0008] A driving structure, connected to the clamping carrier and used to drive the first clamping plate and the second clamping plate to move towards each other. The first clamping plate and the second clamping plate respectively abut against two side surfaces of the target object to clamp the target object.

[0009] In one embodiment, the surface of the first clamping plate abutting against the target object is a concave arc surface, and the surface of the second clamping plate abutting against the target object is a convex arc surface; or the surface of the first clamping plate abutting against the target object is a convex arc surface, and the surface of the second clamping plate abutting against the target object is a concave arc surface.

[0010] In one embodiment, the clamping structure further includes a guiding post. A guiding groove is formed on the surface of the clamping stage. The guiding post is slidably disposed in the guiding groove and is connected to the first clamping plate or the second clamping plate.

[0011] In one embodiment, each of the first clamping plate and the second clamping plate is connected to at least one of the guiding posts.

[0012] In one embodiment, a positioning cavity is formed in the clamping stage. The guiding groove communicates with the positioning cavity. The clamping structure further includes a limiting slider slidably disposed in the positioning cavity and connected to the guiding post.

[0013] In one embodiment, the clamping structure further includes a support member. A positioning hole communicating with the positioning cavity is formed on the side surface of the clamping stage. One end of the support member is inserted into the positioning hole and is located in the positioning cavity, and one end of the target object extends into the positioning cavity and abuts against the support member.

[0014] In one embodiment, the driving structure includes a first screw rod threadedly connected to the first clamping plate, a second screw rod threadedly connected to the second clamping plate, and a driving seat connected to the clamping stage. Both the first screw rod and the second screw rod are rotatably connected to the driving seat.

[0015] In one embodiment, the driving structure further includes a first threaded seat disposed on the first clamping plate and a second threaded seat disposed on the second clamping plate. The first screw rod and the second screw rod are threadedly connected to the first threaded seat and the second threaded seat respectively.

[0016] In one embodiment, the clamping and positioning device further includes a cover plate. The cover plate is connected to the clamping stage and is located in the accommodating groove. The first clamping plate and the second clamping plate move towards both sides of the cover plate respectively to clamp the target object.

[0017] In a second aspect, a motor welding device is provided, which includes the clamping and positioning device.

[0018] The beneficial effect of the present application is that: the plate surface of the first clamping plate horizontally facing the bus bar abuts against one side surface of the bus bar, and the plate surface of the second clamping plate horizontally facing the bus bar abuts against the other side surface of the bus bar. In this way, through the surface-to-surface contact between the bus bar and the first clamping plate or the second clamping plate, the force on the bus bar is uniform, which can not only stably clamp the bus bar, but also the bus bar is not easily deformed, so that the bus bar can be effectively clamped, and at the same time, the reliability of the bus bar is improved. Description of the Drawings

[0019] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or exemplary technical descriptions. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 is a schematic perspective view of the clamping and positioning device provided by the embodiment of the present application;

[0021] Figure 2 is Figure 1 an exploded view of the clamping and positioning device;

[0022] Figure 3 is Figure 1 a schematic bottom-up perspective view of the clamping and positioning device.

[0023] Among them, the reference numerals in the figure:

[0024] 100, clamping and positioning device; 110, clamping structure; 101, first clamping plate; 102, second clamping plate; 103, clamping stage; 200, driving structure; 211, first screw; 212, first threaded seat; 213, first handle; 231, driving seat; 221, second screw; 222, second threaded seat; 223, second handle; 214, accommodating groove; 104, cover plate; 301, support member; 241, guiding column; 242, limiting slider; 302, positioning hole; 1031, guiding groove; 1032, positioning cavity. Specific Embodiments

[0025] In order to make the purpose, technical solutions and advantages of the present application clearer, the following further details the present application in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0026] It should be noted that when a component is referred to as "fixed to" or "arranged on" another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to the other component. The orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this application. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances. The terms "first" and "second" are only for convenience of description purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of technical features. The meaning of "a plurality" is two or more, unless otherwise specifically and clearly defined.

[0027] Please refer to Figures 1 to 3 , an embodiment of the present application provides a clamping and positioning device 100 for clamping a target object. In this embodiment, the target object is a bus bar used for welding with a stator. In other embodiments, the target object can also be other workpieces to be welded, which is not limited here and can be selected according to actual situations. In the present application, the bus bar is made by sheet metal processing of a metal plate, its length direction is curved, and it has a certain thickness.

[0028] Please refer to Figures 1 to 3 , the clamping and positioning device 100 includes a clamping structure 110 and a driving structure 200.

[0029] The clamping structure 110 includes a clamping platform 103, a first clamping plate 101 having a receiving groove 214, and a second clamping plate 102 located in the receiving groove 214. The clamping platform 103 is laid flat, and both the first clamping plate 101 and the second clamping plate 102 are slidably connected to the upper surface of the clamping platform 103, and at least a part of the bus bar is located in the receiving groove 214, that is, the bus bar is inserted into the receiving groove 214 in the vertical direction.

[0030] Please refer to Figures 1 to 3 , the driving structure 200 is connected to the clamping platform 103 and is used to drive the first clamping plate 101 and the second clamping plate 102 to move towards each other. The first clamping plate 101 and the second clamping plate 102 respectively abut against both side surfaces of the bus bar to clamp the bus bar. The driving structure 200 drives the first clamping plate 101 and the second clamping plate 102 to move away from each other, thereby releasing the clamping of the bus bar.

[0031] Please refer to Figures 1 to 3, It can be understood that the plate surface of the first clamping plate 101 facing the busbar horizontally abuts against one side surface of the busbar, while the plate surface of the second clamping plate 102 facing the busbar horizontally abuts against the other side surface of the busbar. In this way, through the surface-to-surface contact between the busbar and the first clamping plate 101 or the second clamping plate 102, the force on the busbar is evenly distributed, which not only can stably clamp the busbar, but also the busbar is not easily deformed, so that the busbar can be effectively clamped, and at the same time, the reliability of the busbar is improved.

[0032] Optionally, by adopting the cooperation of the first clamping plate 101 and the second clamping plate 102 with the accommodating groove 214, the stable clamping of the busbar is ensured. The accommodating groove 214 provides a flexible adjustment space for the sliding of the second clamping plate 102, and can adapt to busbars with different sizes, thicknesses, lengths and shapes. The driving structure 200 can precisely control the movement of the first clamping plate 101 and the second clamping plate 102, so that the busbar is evenly stressed after being clamped, thereby avoiding deformation and damage caused by uneven stress, and improving the reliability and service life of the work.

[0033] Please refer to Figures 1 to 3 , optionally, the materials of the first clamping plate 101 and the second clamping plate 102 can be high-strength metal materials, such as steel or aluminum alloy, to enhance durability and load-bearing capacity.

[0034] Please refer to Figures 1 to 3 , in one embodiment, the surface of the first clamping plate 101 abutting against the busbar is a concave arc surface, and the surface of the second clamping plate 102 abutting against the busbar is a convex arc surface.

[0035] Optionally, by adopting the first clamping plate 101 and the second clamping plate 102 with concave and convex arc surfaces, the curved surface structure of the busbar can be better fitted, and the stability and precision of clamping can be improved. This setting is applicable to busbars with irregular shapes. The complementary structure of the concave arc surface and the convex arc surface ensures the uniform stress of the busbar during the clamping process, reduces local stress concentration, and prevents surface damage caused by excessive clamping force.

[0036] Please refer to Figures 1 to 3 , in one embodiment, the surface of the first clamping plate 101 abutting against the busbar is a convex arc surface, and the surface of the second clamping plate 102 abutting against the busbar is a concave arc surface.

[0037] Optionally, by adopting the first clamping plate 101 and the second clamping plate 102 with concave and convex arc surfaces, the curved surface structure of the busbar can be better fitted, and the stability and precision of clamping can be improved. This setting is applicable to busbars with irregular shapes. The complementary structure of the concave arc surface and the convex arc surface ensures the uniform stress of the busbar during the clamping process, reduces local stress concentration, and prevents surface damage caused by excessive clamping force.

[0038] Please refer to Figures 1 to 3 , in one embodiment, the clamping structure 110 further includes a guide post 241. A guide groove 1031 is formed on the surface of the clamping stage 103. The guide post 241 is slidably disposed in the guide groove 1031 and is connected to the first clamping plate 101 or the second clamping plate 102.

[0039] Optionally, the cooperation between the guide post 241 and the guide groove 1031 ensures the smooth sliding of the first clamping plate 101 or the second clamping plate 102, avoiding tilting or jamming of the first clamping plate 101 or the second clamping plate 102 during movement. Precise linear motion control is provided, ensuring the synchronous movement of the first clamping plate 101 and the second clamping plate 102, and improving the overall stability and precision of the clamping and positioning device 100.

[0040] Optionally, the guide post 241 can be made of a high-hardness material, such as stainless steel, to improve wear resistance and extend service life.

[0041] Please refer to Figures 1 to 3 , in one embodiment, both the first clamping plate 101 and the second clamping plate 102 are each connected to at least one of the guide posts 241. In this embodiment, two guide posts 241 are arranged on both the first clamping plate 101 and the second clamping plate 102. The guide grooves 1031 are formed at positions corresponding to the respective guide posts 241 on the clamping stage 103, and the respective guide posts 241 are slidably disposed in the respective guide grooves 1031.

[0042] Optionally, the arrangement of multiple guide posts 241 further increases the smoothness and sliding precision of the first clamping plate 101 and the second clamping plate 102, ensuring uniform force application and precise positioning during the clamping process.

[0043] Please refer to Figures 1 to 3 , in one embodiment, the clamping stage 103 is provided with a positioning cavity 1032. The guide groove 1031 communicates with the positioning cavity 1032. The clamping structure 110 further includes a limit slider 242 that is slidably disposed in the positioning cavity 1032 and is connected to the guide post 241.

[0044] Optionally, the arrangement of the limit slider 242 can effectively prevent the guide post 241 from disengaging from the clamping stage 103 in the vertical direction, further improving the safety and reliability of the clamping and positioning device 100.

[0045] Please refer to Figures 1 to 3, in one embodiment, the clamping structure 110 further includes a support member 301. A positioning hole 302 communicating with the positioning cavity 1032 is formed on the side surface of the clamping stage 103. One end of the support member 301 is inserted into the positioning hole 302 and located in the positioning cavity 1032, and one end of the bus bar extends into the positioning cavity 1032 and abuts against the support member 301.

[0046] Optionally, the support member 301 can provide vertical support for the bus bar, ensuring the stability of the bus bar during the positioning process and reducing displacement or loosening caused by vibration or impact. By pulling the support member 301, the length of the support member 301 located in the positioning cavity 1032 can be adjusted to adapt to bus bars of different thicknesses, increasing the flexibility and adaptability of the clamping and positioning device 100.

[0047] Optionally, three support members 301 are arranged at intervals along the circumferential direction of the clamping stage 103.

[0048] Please refer to Figures 1 to 3 , in one embodiment, the driving structure 200 includes a first screw rod 211 threadedly connected to the first clamping plate 101, a second screw rod 221 threadedly connected to the second clamping plate 102, and a driving seat 231 connected to the clamping stage 103. Both the first screw rod 211 and the second screw rod 221 are rotatably connected to the driving seat 231.

[0049] Optionally, by rotating the first screw rod 211 and the second screw rod 221, the sliding of the first clamping plate 101 and the second clamping plate 102 can be respectively achieved, providing a stable clamping force, being applicable to bus bars of different sizes and shapes, and improving the control precision of the clamping process. The first screw rod 211 and the second screw rod 221 can adopt high-precision ball screws to reduce friction, improve transmission efficiency and precision.

[0050] Please refer to Figures 1 to 3 , in one embodiment, the driving structure 200 further includes a first thread seat 212 provided on the first clamping plate 101 and a second thread seat 222 provided on the second clamping plate 102. The first screw rod 211 and the second screw rod 221 are respectively threadedly connected to the first thread seat 212 and the second thread seat 222.

[0051] Please refer to Figures 1 to 3, Optionally, the provision of the first threaded seat 212 and the second threaded seat 222 provides a firm connection, ensuring the stability and reliability of the driving of the first screw rod 211 and the second screw rod 221, and further improving the clamping effect of the first clamping plate 101 and the second clamping plate 102. The cooperation between the threaded seat and the screw rod can ensure high-precision and high-strength connection through precision machining, avoiding loosening and thread slipping phenomena, and improving the stability of the device.

[0052] Optionally, first handles 213 and second handles 223 are respectively arranged on the first screw rod 211 and the second screw rod 221. By means of the first handles 213 and the second handles 223, the first screw rod 211 and the second screw rod 221 can be respectively driven to rotate.

[0053] Optionally, the driving seat 231 is fixedly connected to the clamping carrier 103 and is located within the accommodating groove 214.

[0054] Please refer to Figures 1 to 3 , In one embodiment, the clamping and positioning device 100 further includes a cover plate 104. The cover plate 104 is connected to the clamping carrier 103 and is located within the accommodating groove 214, and the first clamping plate 101 and the second clamping plate 102 respectively move towards both sides of the cover plate 104 to clamp the bus bar. That is, the bus bar has a hollowed-out portion, the cover plate 104 is located at the hollowed-out portion, a part of the bus bar is located on one side of the cover plate 104, and another part is located on the other side of the cover plate 104, so that the first clamping plate 101 cooperates with the cover plate 104, and the second clamping plate 102 cooperates with the cover plate 104 to clamp both sides of the bus bar respectively.

[0055] Optionally, the cover plate 104 can shield the hollowed-out position of the bus bar, preventing welding debris from falling onto the stator below, and at the same time making the clamping process safer and more reliable.

[0056] The present utility model also proposes a motor welding device. This motor welding device includes a clamping and positioning device 100. The specific structure of this clamping and positioning device 100 refers to the above-mentioned embodiment. Since this motor welding device adopts all the technical solutions of the above-mentioned all embodiments, it also has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, and will not be elaborated one by one here.

[0057] In one embodiment, the motor welding device further includes a lifting structure located below the clamping carrier 103. The stator is located on the lifting structure, and the lifting structure drives the stator to rise so that the stator contacts the bus bar, facilitating subsequent welding.

[0058] The above are only optional embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A clamping and positioning device for clamping a target object, characterized in that: The clamping and positioning device comprises: A clamping structure, comprising a clamping platform, a first clamping plate having a receiving groove, and a second clamping plate located in the receiving groove, wherein the first clamping plate and the second clamping plate are both slidably connected to the clamping platform, and the target object is at least partially located in the receiving groove; and The driving structure is connected to the clamping platform and is used to drive the first clamping plate and the second clamping plate to move toward each other, and the first clamping plate and the second clamping plate respectively abut against the two side surfaces of the target object to clamp the target object.

2. The clamping and positioning device according to claim 1, characterized in that: The surface of the first clamping plate abutting against the target object is a concave arc surface, and the surface of the second clamping plate abutting against the target object is a convex arc surface; or the surface of the first clamping plate abutting against the target object is a convex arc surface, and the surface of the second clamping plate abutting against the target object is a concave arc surface.

3. The clamping and positioning device according to claim 1, characterized in that: The clamping structure further includes a guide column. A guide groove is formed on the surface of the clamping platform. The guide column is slidably disposed in the guide groove and connected to the first clamping plate or the second clamping plate.

4. The clamping and positioning device according to claim 3, characterized in that: The first clamping plate and the second clamping plate are both connected to at least one guide column.

5. The clamping and positioning device according to claim 3, characterized in that: The clamping platform is provided with a positioning cavity, the guide groove is connected to the positioning cavity, and the clamping structure further comprises a limiting slider which is slidably arranged in the positioning cavity and connected to the guide column.

6. The clamping and positioning device according to claim 5, characterized in that: The clamping structure also includes a support member, a side surface of the clamping platform is provided with a positioning hole connected to the positioning cavity, one end of the support member is inserted into the positioning hole and located in the positioning cavity, and one end of the target object extends to the positioning cavity and abuts against the support member.

7. The clamping and positioning device according to any one of claims 1 to 6, characterized in that: The driving structure includes a first screw rod threadedly connected to the first clamping plate, a second screw rod threadedly connected to the second clamping plate, and a driving seat connected to the clamping platform, and the first screw rod and the second screw rod are both rotatably connected to the driving seat.

8. The clamping and positioning device according to claim 7, characterized in that: The driving structure further includes a first threaded seat disposed on the first clamping plate and a second threaded seat disposed on the second clamping plate, and the first screw rod and the second screw rod are respectively threadedly connected to the first threaded seat and the second threaded seat.

9. The clamping and positioning device according to any one of claims 1 to 6, characterized in that: The clamping and positioning device further includes a cover plate, which is connected to the clamping platform and is located in the receiving groove, and the first clamping plate and the second clamping plate respectively move toward two sides of the cover plate to clamp the target object.

10. A motor welding device, characterized in that: It comprises a clamping and positioning device as described in any one of claims 1-9.

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