A busbar welding auxiliary device

Abstract

The present invention discloses a busbar welding auxiliary device, which effectively achieves the purpose of fixing the busbar terminal and the stator copper wire terminal, including a tool seat, a clamping assembly and a wire-resisting assembly. The tool seat includes a support ring and a support seat, and the clamping assembly includes a first clamping disk and a second clamping disk. The first clamping disk and the second clamping disk are respectively provided with a first wire groove and a second wire groove in a circumferential array. The wire-resisting assembly includes a fixed block fixedly connected to the lower side wall of the second clamping disk, and a wire-resisting rod is provided in the middle of each fixed block. The present invention has a novel structure, an ingenious conception, and is simple and convenient to operate. It effectively facilitates the operation of the staff, achieves a better pressing effect, ensures the welding effect and quality, and enables the copper wire to stay away from the busbar during welding, which is convenient for the staff to weld, increases the stability of the pre-clamping, and facilitates the installation of the entire device.

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 wound motors, the flat characteristics of Hairpin copper wire make the motors smaller and more powerful at the same power. It is the development direction of the next generation of new energy drive motors.

[0003] When welding busbar terminals and stator copper wire terminals, the prior art generally performs direct welding. During the welding process, it is not easy to tightly connect the corresponding terminals, which easily leads to hidden dangers such as cold welding. Therefore, a busbar welding auxiliary device is needed to press the busbar terminals and the corresponding stator copper wire terminals 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 effectively 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:

[0006] A busbar welding auxiliary device includes a tooling seat, a clamping assembly, and a line-contact assembly;

[0007] The tooling seat includes a support ring and a support seat, and the support seat is fixedly connected to the inner side wall of the support ring;

[0008] The clamping assembly includes 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 grooves correspond to the second wire grooves one by one;

[0009] The abutment assembly includes a fixed block fixedly connected to the lower side wall of the second clamping disk, and a center portion of each fixed block is provided with an abutment rod that can slide back and forth along the radial direction of the second clamping disk.

[0010] 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.

[0011] 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, and the first clamping disk and the second clamping disk are fixedly connected to a driving block on one side close to the fixed seat, and 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.

[0012] Preferably, 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, and a sliding block is fixedly connected to the side of the support rod close to the rotating handle, and a spring is provided between the sliding block and the inner wall of the sliding groove, and 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 above the second line groove.

[0013] 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.

[0014] 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 tightening 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.

[0015] Preferably, a connecting hole is provided on each of the first clamping disc and the second clamping disc.

[0016] Preferably, an annular groove adapted to the first clamping disc is formed on the inner side wall of the support seat, and the first clamping disc is rotatably connected to the support seat through the annular groove.

[0017] 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 disc at a position corresponding to each fixing hole, and the fixing block corresponds to the second wire groove one by one.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention has a first clamping disc and a second clamping disc that can rotate relative to each other. 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, thereby facilitating subsequent secondary clamping.

[0020] 2. The present invention has a first wire trough and a second wire trough. Through the first inclined surface and the second inclined surface provided inside the first wire trough, the busbar terminal and the stator copper wire terminal can be kept away from the busbar during pre-clamping, thereby facilitating the subsequent welding operation of the workers.

[0021] 3. The present invention has a line-affecting component that is 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 it cannot be abutted during the line-affecting 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 Schematic diagram of the coordination between the present invention and the busbar.

[0024] Figure 3 It is a schematic diagram of the exploded structure of the second clamping disc and the support seat in the present invention.

[0025] Figure 4 It is a structural schematic diagram of the fixed block in the present invention.

[0026] Figure 5 Schematic diagram of the position of the spring in the present invention.

[0027] Figure 6 Schematic diagram of the position of the annular groove in the present invention.

[0028] Figure 7 Schematic diagram of the clamping state of the first clamping disc and the second clamping disc in the present invention.

[0029] Figure 8 This is a schematic structural diagram of the first wire duct in the present invention.

[0030] In the figure: 1. Tooling seat; 2. Clamping assembly; 3. Wire-receiving assembly; 4. Support ring; 5. Support seat; 6. First clamping disc; 7. Second clamping disc; 8. First wire groove; 9. Second wire groove; 10. Fixed block; 11. Wire rod; 12. Fixed seat; 13. Bidirectional screw; 14. Twist head; 15. Slider; 16. Follow-up column; 17. Drive block; 18. Slide groove; 19. Rotating handle; 20. Slide groove; 21. Sliding block; 22. Spring; 23. Cam head; 24. Handle; 25. First inclined surface; 26. Wire-receiving plane; 27. Second inclined surface; 28. Connecting hole; 29. ​​Annular groove; 30. Fixed hole; 31. Waist-shaped hole. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0032] The following is combined with Figures 1-8 The specific embodiments of the present invention are described in further detail.

[0033] Depend on Figures 1-8 The present invention includes a tooling seat 1, a clamping assembly 2, and a wire-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.

[0034] The clamping assembly 2 includes a first clamping disc 6 and a second clamping disc 7 rotatably connected to the support ring 4. The first clamping disc 6 and the second clamping disc 7 rotate in opposite directions. 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 corresponds to the second wire groove 9 in a one-to-one manner.

[0035] The abutment assembly 3 includes a fixing block 10 fixedly connected to the lower side wall of the second clamping disc 7, and a center portion of each fixing block 10 is provided with an abutment rod 11 that can slide back and forth in the radial direction of the second clamping disc 7;

[0036] When in use, place the device on the upper side of the busbar, and pass the busbar terminals and the corresponding stator copper wire terminals 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 placed in the corresponding first wire slot 8 and the second wire slot 9, operate the first clamping disk 6 and the second clamping disk 7 to rotate. Since the two directions are opposite, the side walls of the first wire slot 8 and the side walls of the second wire slot 9 will pre-clamp the busbar terminals and the corresponding stator copper wire terminals. After that, the corresponding terminals can be tightened by the push rod 11, and the copper wire welding operation can be carried out.

[0037] 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, and 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.

[0038] Further, by Figure 1-Figure 3 It 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, and the upper side of each slider 15 is fixedly connected to a follower column 16. The first clamping disc 6 and the second clamping disc 7 are fixedly connected to a driving block 17 on the side close to the fixed seat 12. 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;

[0039] It should be noted that the bidirectional screw 13 is of prior art, and has threads symmetrically arranged on its outer side. When the bidirectional screw 13 rotates, the two sliders 15 move in opposite directions (towards or away from each other).

[0040] During use, the bidirectional screw 13 is rotated by driving the twist head 14 through a motor or manually rotating 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 disk 6 and the second clamping disk 7 rotate in opposite directions, thereby pre-clamping the bus terminal and the corresponding stator copper wire terminal.

[0041] Further, by Figures 1-6 In order to ensure the welding effect and quality, the wire-receiving 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 provided in the middle of the fixed block 10. A sliding block 21 is fixedly connected to the side of the push rod 11 near the rotating handle 19. A spring 22 is provided between the sliding block 21 and the inner wall of the slide groove 20. The spring 22 is mounted on the outside 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.

[0042] Further, by Figures 1-6 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;

[0043] During use, after the copper wire at the stator end and the copper wire at the busbar connection end are pre-fixed by the first clamping disc 6 and the second clamping disc 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. The push rod 11 is retracted to the inside of the fixed block 10 away from the second wire groove 9 under the action of the spring 22 to prepare for the wire contact. When the staff operates, the handle 24 can be manually pulled down, 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, making it convenient for welding the copper wire;

[0044] It should be noted that in the actual production process, since the copper wire at the stator end and the busbar 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 busbar end to reduce the difficulty of the work and ensure the welding effect and quality.

[0045] Further, by Figure 6-Figure 8 In order to keep the copper wire away from the busbar during welding and facilitate welding, the inner 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. The inner wall of the second wire groove 9 is provided with a second inclined surface 27 symmetrically arranged with the first inclined surface 25;

[0046] During use, when the first clamping disc 6 and the second clamping disc 7 rotate relative to each other, the first wire slot 8 and the second wire slot 9 will clamp the stator end copper wire and the bus connection end copper wire. 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 disc 6 and the second clamping disc 7. At this time, the stator end copper wire and the bus connection end copper wire 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 stator end copper wire and the bus connection end copper wire together.

[0047] Further, by Figure 6-Figure 8 It is given 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;

[0048] When in use, the main power input cable of the busbar can be connected to the busbar through the connection hole 28.

[0049] Further, by Figures 1-6It is given that, in order to increase the stability of pre-clamping, the inner side wall of the support seat 5 is provided with an annular groove 29 adapted to the first clamping plate 6, 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.

[0050] Further, by Figure 1-Figure 7 To facilitate the installation of the entire device, two fixing holes 30 are provided on the upper side of the fixing block 10, and a waist-shaped hole 31 is provided on the upper side of the second clamping plate 7 at a position corresponding to each fixing hole 30. The fixing block 10 corresponds to the second wire groove 9 one by one.

[0051] 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 hole 30 and the waist-shaped hole 31. Due to the design of the waist-shaped hole 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 of different thicknesses and the bus connection end copper wires.

[0052] 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 manually rotated to realize the rotation of the bidirectional screw 13. The bidirectional screw 13 is driven to rotate by the twist head 14, so that the two sliders 15 move. Under the cooperation of the follower column 16 and the driving block 17, the first clamping disc 6 and the second clamping disc 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. During 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 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. Since the cam head 23 is eccentrically set, the cam head 23 will push the push rod 11 forward, thereby causing the push rod 11 to press the copper wire away from the end of the cam head 23, so that the copper wire welding operation can be carried out.

[0053] The present invention has a novel structure, an ingenious conception, and is simple and convenient to operate. Through this design, the purpose of fixing the busbar terminal and the stator copper wire terminal is effectively achieved, which facilitates the operation of the staff, achieves a better pressing effect, ensures the welding effect and quality, keeps the copper wire away from the busbar during welding, facilitates welding for the staff, increases the stability of the pre-clamping, and facilitates the installation of the entire device.

[0054] 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 scope of protection of the present invention.

Claims

1. A busbar welding auxiliary device, comprising a tooling seat, a clamping assembly, and a wire-contact assembly, characterized in that: The tooling seat includes 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 includes 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 grooves correspond to the second wire grooves one by one; The abutment assembly includes a fixed block fixedly connected to the lower side wall of the second clamping disk, and a central portion of each fixed block is provided with an abutment rod that can slide back and forth in the radial direction of the second clamping disk; The clamping assembly also includes a fixing base fixedly connected to the supporting base, a rotatable bidirectional screw is provided inside the fixing base, one end of the bidirectional screw passes through the side wall of the fixing base and is fixedly connected to a twist head; 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 disk and the second clamping disk are fixedly connected to a driving block on the side close to the fixed seat, and 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.

2. 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 provided in the middle of the fixed block, and 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, and 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 above the second line groove.

3. The busbar welding auxiliary device according to claim 2, characterized in that: 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.

4. 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 the end of the first inclined surface close to the rotating handle is connected to a tightening plane. The inner side wall of the second wire groove is provided with a second inclined surface symmetrically arranged with the first inclined surface.

5. The busbar welding auxiliary device according to claim 1, characterized in that: A connecting hole is provided on each of the first clamping disc and the second clamping disc.

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

7. The busbar welding auxiliary device according to claim 1, characterized in that: 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 disc at a position corresponding to each fixing hole. The fixing block corresponds to the second wire groove one by one.

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