Busbar welding auxiliary device

Abstract

The invention discloses a busbar welding auxiliary device which effectively achieves the purpose of fixing a busbar terminal and a stator copper wire terminal, the busbar welding auxiliary device comprises a tool base, a clamping assembly and a wire abutting assembly, the tool base comprises a supporting ring and a supporting base, the clamping assembly comprises a first clamping disc and a second clamping disc, and the wire abutting assembly comprises a first clamping disc and a second clamping disc; a first wire groove and a second wire groove are formed in the first clamping disc and the second clamping disc in a circumferential array mode respectively, the wire abutting assembly comprises a fixing block fixedly connected with the lower side wall of the second clamping disc, and an abutting rod is arranged in the middle of each fixing block. By means of the device, the better pressing effect is achieved, the welding effect and quality are guaranteed, a copper wire can be away from a busbar during welding, workers can conduct welding conveniently, the pre-clamping stability is improved, and overall installation of the device is facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of busbar welding and relates to a busbar welding auxiliary device. Background Art

[0002] Hairpin permanent magnet synchronous motors are gradually being used on a large scale in the domestic drive motor market. Compared with traditional winding motors, due to the flat characteristics of Hairpin copper wire, the motors are smaller and more powerful at the same power, which is the development direction of the next generation of new energy drive motors.

[0003] When welding the busbar terminal and the stator copper wire terminal, the prior art generally performs welding directly. In this way, it is not easy to tightly connect the corresponding terminals during the welding process, and there are hidden dangers such as cold welding during welding. Therefore, a busbar welding auxiliary device that can press the busbar terminal and the corresponding stator copper wire terminal is needed to solve the above problems. Summary of the invention

[0004] In view of the above problems, the present invention proposes a busbar welding auxiliary device, which well solves the problems in the prior art.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is as follows: A busbar welding auxiliary device comprises a tooling seat, a clamping assembly and a line-contacting assembly; The tooling seat comprises a support ring and a support seat, and the support seat is fixedly connected to the inner side wall of the support ring; The clamping assembly comprises a first clamping disc and a second clamping disc rotatably connected to the support ring, the second clamping disc is located on the upper side of the first clamping disc, and the first clamping disc and the second clamping disc are respectively provided with a first wire groove and a second wire groove in a circumferential array, and the first wire groove corresponds to the second wire groove one by one; The abutment assembly includes a fixed block fixedly connected to the lower side wall of the second clamping disk, and a abutment rod which can slide back and forth along the radial direction of the second clamping disk is provided in the middle of each fixed block.

[0006] Preferably, the clamping assembly further comprises a fixing seat fixedly connected to the supporting seat, a rotatable bidirectional screw is provided inside the fixing seat, one end of the bidirectional screw passes through the side wall of the fixing seat and is fixedly connected to a twist head.

[0007] Preferably, the upper part of the fixed seat is slidably connected to two sliders, the middle part of each slider is threadedly connected to the bidirectional screw, the upper side of each slider is fixedly connected to a follower column, the first clamping plate and the second clamping plate are fixedly connected to a driving block on one side close to the fixed seat, a sliding groove is opened in the middle of each driving block, and each driving block is slidably connected to the follower column through the sliding groove.

[0008] Preferably, the wire-retaining assembly also includes a rotating handle rotatably connected to the fixed block on the side close to the rotating axis of the second clamping disk, a sliding groove is opened in the middle of the fixed block, a sliding block is fixedly connected to the side of the push rod close to the rotating handle, a spring is provided between the sliding block and the inner wall of the sliding groove, the spring is sleeved on the outer side of the push rod, and the end of the push rod away from the rotating handle extends to above the second wire groove.

[0009] Preferably, the rotating handle comprises a cam head and a handle, and the axis of the cam head rotating shaft is eccentrically arranged with respect to the axis of the cam head.

[0010] Preferably, the inner side wall of the first wire groove is provided with a first inclined surface, the end of the first inclined surface close to the rotating handle is connected to a pressing plane, and the inner side wall of the second wire groove is provided with a second inclined surface symmetrically arranged with the first inclined surface.

[0011] Preferably, a connecting hole is formed on each of the first clamping disc and the second clamping disc.

[0012] Preferably, an annular groove matched with the first clamping disk is formed on the inner side wall of the support seat, and the first clamping disk is rotatably connected to the support seat through the annular groove.

[0013] Preferably, two fixing holes are provided on the upper side of the fixing block, and a waist-shaped hole is provided on the upper side of the second clamping disk at a position corresponding to each fixing hole, and the fixing block corresponds to the second wire groove one by one.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention has a first clamping disc and a second clamping disc that can rotate relatively. When in use, the busbar terminal and the stator copper wire terminal can be pre-clamped through the first wire groove and the second wire groove on the upper side thereof, respectively, so as to facilitate the subsequent secondary clamping.

[0015] 2. The present invention has a first wire groove and a second wire groove, and through the first inclined surface and the second inclined surface opened inside the wire groove, the bus terminal and the stator copper wire terminal can be kept away from the bus when pre-clamping, thereby facilitating the subsequent welding operation of the staff.

[0016] 3. The present invention has a line-affecting component manually controlled by the staff, so that the staff can quickly find out whether the line is abutted in place during operation. If there is a jam or the line cannot be abutted during the process, the staff can make timely adjustments to the welding end or the bus end to reduce the work difficulty and ensure the welding effect and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the matching state between the present invention and the busbar.

[0019] Figure 3 It is a schematic diagram of the explosion structure of the second clamping disk and the support seat in the present invention.

[0020] Figure 4 It is a schematic diagram of the structure of the fixed block in the present invention.

[0021] Figure 5 It is a schematic diagram of the position of the spring in the present invention.

[0022] Figure 6 Schematic diagram of the position of the annular groove in the present invention.

[0023] Figure 7 It is a schematic diagram of the clamping state of the first clamping disc and the second clamping disc in the present invention.

[0024] Figure 8 It is a schematic structural diagram of the first wire duct in the present invention.

[0025] In the figure: 1. tooling seat; 2. clamping assembly; 3. line-receiving assembly; 4. support ring; 5. support seat; 6. first clamping plate; 7. second clamping plate; 8. first line groove; 9. second line groove; 10. fixing block; 11. push rod; 12. fixing seat; 13. bidirectional screw; 14. twist head; 15. slider; 16. follower column; 17. drive block; 18. sliding groove; 19. rotating handle; 20. sliding groove; 21. sliding block; 22. spring; 23. cam head; 24. handle; 25. first inclined surface; 26. clamping plane; 27. second inclined surface; 28. connecting hole; 29. ​​annular groove; 30. fixing hole; 31. waist-shaped hole. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] The following is combined with Figure 1-Figure 8 The specific implementation modes of the present invention are described in further detail.

[0028] Depend on Figure 1-Figure 8 The present invention includes a tooling seat 1, a clamping assembly 2 and a line-abutting assembly 3. In order to achieve the purpose of fixing the busbar terminal and the stator copper wire terminal, the tooling seat 1 includes a support ring 4 and a support seat 5. The support seat 5 is fixedly connected to the inner side wall of the support ring 4. The clamping assembly 2 comprises a first clamping disc 6 and a second clamping disc 7 which are rotatably connected to the support ring 4. The first clamping disc 6 and the second clamping disc 7 have opposite directions of rotation. The second clamping disc 7 is located on the upper side of the first clamping disc 6. The first clamping disc 6 and the second clamping disc 7 are respectively provided with a first wire groove 8 and a second wire groove 9 in a circumferential array. The first wire groove 8 and the second wire groove 9 correspond to each other one by one. The abutment assembly 3 includes a fixing block 10 fixedly connected to the lower side wall of the second clamping plate 7, and a abutment rod 11 is provided in the middle of each fixing block 10 and can slide back and forth in the radial direction of the second clamping plate 7; When in use, place the device on the upper side of the bus, and pass the bus terminal and the corresponding stator copper wire terminal through the first wire groove 8 and the second wire groove 9 from bottom to top in sequence. At this time, the first wire groove 8 and the corresponding second wire groove 9 are in vertically corresponding positions. After all the bus terminal and the corresponding stator copper wire terminal are placed in the corresponding first wire groove 8 and the second wire groove 9, operate the first clamping plate 6 and the second clamping plate 7 to rotate. Since the two directions are opposite, the side walls of the first wire groove 8 and the side walls of the second wire groove 9 will pre-clamp the bus terminal and the corresponding stator copper wire terminal. After that, the corresponding terminal can be tightened by the push rod 11, and the copper wire welding operation can be carried out.

[0029] Further, by Figure 1-Figure 3 It is given that, in order to facilitate the operation of the staff, the clamping assembly 2 also includes a fixed seat 12 fixedly connected to the support seat 5, a rotatable bidirectional screw 13 is provided inside the fixed seat 12, one end of the bidirectional screw 13 passes through the side wall of the fixed seat 12 and is fixedly connected to a twist head 14.

[0030] Further, by Figure 1-Figure 3It is given that the upper part of the fixed seat 12 is slidably connected to two sliders 15, the middle part of each slider 15 is threadedly connected to the bidirectional screw 13, the upper side of each slider 15 is fixedly connected to a follower column 16, the first clamping plate 6 and the second clamping plate 7 are fixedly connected to a driving block 17 on one side close to the fixed seat 12, and a sliding groove 18 is opened in the middle of each driving block 17, and each driving block 17 is slidably connected to the follower column 16 through the sliding groove 18; It should be noted that the bidirectional screw 13 is a prior art, and threads are symmetrically arranged on its outer side. When the bidirectional screw 13 rotates, the two sliders 15 will move in opposite directions (approaching each other or moving away from each other); When in use, the rotation of the bidirectional screw 13 is achieved by driving the twist head 14 through a motor or manually turning the twist head 14. The bidirectional screw 13 is driven to rotate by the twist head 14, so that the two sliders 15 move. With the cooperation of the follower column 16 and the driving block 17, the first clamping plate 6 and the second clamping plate 7 rotate in opposite directions, thereby pre-clamping the bus terminal and the corresponding stator copper wire terminal.

[0031] Further, by Figure 1-Figure 6 It is given that, in order to ensure the welding effect and quality, the wire-retaining assembly 3 also includes a rotating handle 19 rotatably connected to the fixed block 10 near the side of the rotating axis of the second clamping disk 7, a slide groove 20 is opened in the middle of the fixed block 10, and the side of the push rod 11 near the rotating handle 19 is fixedly connected to a sliding block 21, and a spring 22 is provided between the sliding block 21 and the inner wall of the slide groove 20, and the spring 22 is sleeved on the outer side of the push rod 11, and the end of the push rod 11 away from the rotating handle 19 extends to the top of the second wire groove 9.

[0032] Further, by Figure 1-Figure 6 It is given that, in order to achieve a better pressing effect, the rotating handle 19 includes a cam head 23 and a handle 24, and the axis of the rotating shaft of the cam head 23 is eccentrically arranged with respect to the axis of the cam head 23; When in use, after the copper wire at the stator end and the copper wire at the bus connection end are pre-fixed by the first clamping plate 6 and the second clamping plate 7, the copper wire can be further tightened by the push rod 11. Before the staff operates, the handle 24 is in a vertical position in the initial state. Under the action of the spring 22, the push rod 11 retracts to the inside of the fixed block 10 in a direction away from the second wire groove 9 to prepare for the push. When the staff operates, the handle 24 can be manually pulled downward, and the handle 24 drives the cam head 23 to rotate. Due to the eccentric setting of the cam head 23, the cam head 23 will push the push rod 11 forward, thereby causing the end of the push rod 11 away from the cam head 23 to press the copper wire, which is convenient for welding the copper wire. It should be noted that in the actual production process, since the copper wire at the stator end and the bus connection end cannot ensure good consistency, manual adjustment of the contact line can quickly detect whether it is in place. If there is a jam or it cannot be contacted during the contact process, the staff can make timely adjustments to the welding end or the bus end to reduce the difficulty of work and ensure the welding effect and quality.

[0033] Further, by Figure 6-Figure 8 It is given that in order to keep the copper wire away from the busbar during welding and facilitate welding, the inner side wall of the first wire groove 8 is provided with a first inclined surface 25, and the end of the first inclined surface 25 close to the rotating handle 19 is connected to a tightening plane 26, and the inner side wall of the second wire groove 9 is provided with a second inclined surface 27 symmetrically arranged with the first inclined surface 25; When in use, when the first clamping plate 6 and the second clamping plate 7 rotate relative to each other, the first wire groove 8 and the second wire groove 9 will clamp the copper wire at the stator end and the copper wire at the bus connection end. During the clamping process, under the action of the first inclined surface 25 and the second inclined surface 27, the two terminal ends are driven to move a certain distance toward the rotation axis direction of the first clamping plate 6 and the second clamping plate 7. At this time, the copper wire at the stator end and the copper wire at the bus connection end will be stacked and arranged on one side of the clamping plane 26. At this time, when the staff operates the handle 24 again, the support rod 11 and the clamping plane 26 will press the copper wire at the stator end and the copper wire at the bus connection end.

[0034] Further, by Figure 6-Figure 8 It is shown that, in order to facilitate the connection between the busbar and the main power input cable, a connection hole 28 is provided on each of the first clamping plate 6 and the second clamping plate 7; When in use, the main power input cable of the busbar can be connected to the busbar through the connection hole 28.

[0035] Further, by Figure 1-Figure 6 It is given that, in order to increase the stability of pre-clamping, an annular groove 29 adapted to the first clamping plate 6 is opened on the inner wall of the support seat 5, and the first clamping plate 6 is rotatably connected to the support seat 5 through the annular groove 29, and the upper side of the second clamping plate 7 is provided with a plurality of limit blocks detachably connected to the support seat 5 by bolts, and the lower side of each limit block is slidably connected to the second clamping plate 7 to form a longitudinal limit for the second clamping plate 7, and the first clamping plate 6 and the second clamping plate 7 are stacked in sequence from bottom to top inside the annular groove 29, and the upper side of the second clamping plate 7 is limited by the limit block, that is, the first clamping plate 6 and the second clamping plate 7 are both rotatably connected to the support frame.

[0036] Further, by Figure 1-Figure 7It is given that, in order to facilitate the installation of the entire device, two fixing holes 30 are opened on the upper side of the fixing block 10, and a waist-shaped hole 31 is opened on the upper side of the second clamping plate 7 at a position corresponding to each fixing hole 30, and the fixing block 10 corresponds to the second wire groove 9 one by one; During use, when the fixing block 10 needs to be installed on the lower side of the second clamping plate 7, it can be fixed by bolts using the fixing holes 30 and the waist-shaped holes 31. Due to the design of the waist-shaped holes 31, the radial position of the fixing block 10 relative to the second clamping plate 7 can be adjusted, thereby facilitating the tightening of the stator end copper wires and the bus connection end copper wires of different thicknesses.

[0037] When the present invention is used, the device is first placed on the upper side of the busbar, and the busbar terminals and the corresponding stator copper wire terminals are passed through the first wire slot 8 and the second wire slot 9 from bottom to top in sequence. At this time, the first wire slot 8 and the corresponding second wire slot 9 are in vertically corresponding positions. After all the busbar terminals and the corresponding stator copper wire terminals are passed through the corresponding first wire slot 8 and the second wire slot 9 from bottom to top, the twist head 14 is driven by a motor or the twist head 14 is manually rotated to realize the rotation of the bidirectional screw 13. The twist head 14 drives the bidirectional screw 13 to rotate, so that the two sliders 15 move. Under the cooperation of the follower column 16 and the driving block 17, the first clamping plate 6 and the second clamping plate 7 rotate. Due to the relative rotation of the two On the contrary, the side walls of the first wire groove 8 and the side walls of the second wire groove 9 will pre-clamp the bus terminal and the corresponding stator copper wire terminal. In this process, under the action of the first inclined surface 25 and the second inclined surface 27, the two terminals are driven to move a certain distance toward the rotation axis direction of the first clamping disk 6 and the second clamping disk 7. At this time, the copper wire at the stator end and the copper wire at the bus connection end will be stacked and arranged on one side of the clamping plane 26. After that, the staff can pull the handle 24 downward, and the handle 24 drives the cam head 23 to rotate. Due to the eccentric setting of the cam head 23, the cam head 23 will push the push rod 11 forward, thereby causing the end of the push rod 11 away from the cam head 23 to press the copper wire, and then the copper wire welding operation can be carried out.

[0038] The present invention has a novel structure, ingenious conception, and simple and convenient operation. Through this design, the purpose of being able to fix the bus terminal and the stator copper wire terminal is effectively achieved, which is convenient for the staff to operate, achieves a better clamping effect, ensures the welding effect and quality, enables the copper wire to be away from the bus during welding, facilitates the staff to weld, increases the stability of the pre-clamping, and facilitates the installation of the entire device.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A busbar welding auxiliary device, comprising a tooling seat, a clamping assembly and a line-contact assembly, characterized in that: The tooling seat comprises a support ring and a support seat, and the support seat is fixedly connected to the inner side wall of the support ring; The clamping assembly comprises a first clamping disc and a second clamping disc rotatably connected to the support ring, the second clamping disc is located on the upper side of the first clamping disc, and the first clamping disc and the second clamping disc are respectively provided with a first wire groove and a second wire groove in a circumferential array, and the first wire groove corresponds to the second wire groove one by one; The abutment assembly includes a fixed block fixedly connected to the lower side wall of the second clamping disk, and a abutment rod which can slide back and forth along the radial direction of the second clamping disk is provided in the middle of each fixed block.

2. A busbar welding auxiliary device according to claim 1, characterized in that: The clamping assembly also includes a fixing seat fixedly connected to the supporting seat, a rotatable bidirectional screw is arranged inside the fixing seat, one end of the bidirectional screw passes through the side wall of the fixing seat and is fixedly connected to a twist head.

3. A busbar welding auxiliary device according to claim 2, characterized in that: The upper part of the fixed seat is slidably connected to two sliders, the middle part of each slider is threadedly connected to the bidirectional screw, the upper side of each slider is fixedly connected to a follower column, the first clamping plate and the second clamping plate are fixedly connected to a driving block on one side close to the fixed seat, a sliding groove is opened in the middle of each driving block, and each driving block is slidably connected to the follower column through the sliding groove.

4. The busbar welding auxiliary device according to claim 1, characterized in that: The line-retaining assembly also includes a rotating handle rotatably connected to the fixed block on the side close to the rotating axis of the second clamping disk, a sliding groove is opened in the middle of the fixed block, a sliding block is fixedly connected to the side of the support rod close to the rotating handle, a spring is provided between the sliding block and the inner wall of the sliding groove, the spring is sleeved on the outer side of the support rod, and the end of the support rod away from the rotating handle extends to the top of the second line groove.

5. A busbar welding auxiliary device according to claim 4, characterized in that: The rotating handle comprises a cam head and a handle, and the axis center of the cam head rotating shaft is eccentrically arranged with respect to the axis center of the cam head.

6. The busbar welding auxiliary device according to claim 1, characterized in that: The inner side wall of the first wire groove is provided with a first inclined surface, and one end of the first inclined surface close to the rotating handle is connected to a pressing plane. The inner side wall of the second wire groove is provided with a second inclined surface symmetrically arranged with the first inclined surface.

7. The busbar welding auxiliary device according to claim 1, characterized in that: The first clamping plate and the second clamping plate are each provided with a connecting hole.

8. The busbar welding auxiliary device according to claim 1, characterized in that: An annular groove matched with the first clamping disk is formed on the inner side wall of the support seat, and the first clamping disk is rotatably connected to the support seat through the annular groove.

9. The busbar welding auxiliary device according to claim 1, characterized in that: Two fixing holes are formed on the upper side of the fixing block, and a waist-shaped hole is formed on the upper side of the second clamping plate at a position corresponding to each fixing hole, and the fixing block corresponds to the second wire groove one by one.

Images