Auxiliary clamping device for welding stator and bus board

Abstract

The utility model discloses an auxiliary clamping device for welding a stator and a bus board, and belongs to the technical field of clamping devices. A guide shaft is fixed to the end of the fixing plate, a movable block is driven by a driving device to be in sliding connection with the guide shaft, the two ends of the movable block are rotationally connected with a connecting rod a and a connecting rod b, the end of the connecting rod a is rotationally connected with a connecting arm a, and the end of the connecting rod b is rotationally connected with a connecting arm b. The connecting arm a is connected with the chuck a, the connecting arm b is connected with the chuck b, and the chuck a and the chuck b can rotate around a central shaft. The clamping device has the advantages that by driving the chuck a and the chuck b to rotate synchronously, the accuracy of the rotating and clamping positions of the chuck a and the chuck b is guaranteed, so that flat wires to be welded of a stator and a bus board are accurately positioned and clamped, and subsequent welding machine procedures can be smoothly carried out.

Description

Technical Field

[0001] The utility model relates to an auxiliary clamping device for welding a stator and a busbar, belonging to the technical field of clamping devices. Background Art

[0002] Before laser welding, the stator and the busbar need to be clamped and positioned by a fixture. The existing fixture is fixed in one direction, and the positioning of the stator and the busbar is inaccurate, which affects the normal progress of the welding process. Utility Model Content

[0003] In order to solve the defects of the prior art, the purpose of the utility model is to provide an auxiliary clamping device for welding a stator and a busbar, which adopts a double-layer clamping method to ensure the accurate positioning of the welding parts of the stator and the busbar.

[0004] The technical solution of the utility model is: an auxiliary clamping device for welding a stator and a busbar, comprising a fixed plate, a chuck a and a chuck b distributed up and down, the chuck a is provided with a lock hole a, the chuck b is provided with a lock hole b matched with the lock hole a, the fixed plate is provided with an operation hole, the lock hole a is located below the operation hole, the end of the fixed plate fixes a guide shaft, the movable block is driven by a driving device to be slidably connected to the guide shaft, the two ends of the movable block are rotatably connected to a connecting rod a and a connecting rod b, the end of the connecting rod a is rotatably connected to a connecting arm a, the end of the connecting rod b is rotatably connected to a connecting arm b, the connecting arm a is connected to the chuck a, the connecting arm b is connected to the chuck b, and the chuck a and the chuck b can rotate around the central axis.

[0005] The driving device is a cylinder.

[0006] The cylinder is fixed on a cylinder frame, the cylinder frame is fixed on a movable block, and the output end of the cylinder is connected and fixed to a fixing plate.

[0007] The bottom of the fixing plate is fixed on the supporting frame.

[0008] The chuck a and the chuck b are both rotatably connected to the central shaft via bearings.

[0009] An inner support positioning disc is provided below the chuck b, and the inner support positioning disc is connected to the top fixing plate through a connecting rod, and the connecting rod passes through the arc holes on the chuck a and the chuck b.

[0010] The beneficial effect of the utility model is that by driving the synchronous rotation of the chuck a and the chuck b, the accuracy of the rotation and clamping positions of the two is ensured, thereby achieving accurate positioning and clamping of the flat wires to be welded on the stator and the busbar, so that the subsequent welding process can proceed smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural diagram of the utility model;

[0012] Figure 2 This is a working state diagram of the utility model;

[0013] Figure 3 It is a cross-sectional view of the utility model;

[0014] Figure 4 This is the clamping state view of the chuck;

[0015] Figure 5 This is the chuck unclamped state view.

[0016] The reference numerals in the figure are as follows: 1. fixed plate, 2. chuck a, 3. chuck b, 4. locking hole a, 5. locking hole b, 6. guide shaft, 7. movable block, 8. connecting rod a, 9. connecting rod b, 10. connecting arm a, 11. connecting arm b, 12. operating hole, 13. center shaft, 14. bearing, 15. disc, 16. connecting rod, 17. stator, 18. manifold. DETAILED DESCRIPTION

[0017] The following is combined with Figure 1-5 The utility model is further described as follows:

[0018] An auxiliary clamping device for welding a stator and a busbar, comprising a fixing plate 1, a chuck a2 and a chuck b3 distributed up and down, wherein the bottom of the fixing plate 1 is fixed on a support frame, the chuck a2 is provided with a locking hole a4, the chuck b3 is provided with a locking hole b5 matching with the locking hole a4, the locking hole a4 and the locking hole b5 are matched to form a clamping hole with a variable aperture, the fixing plate 1 is provided with an operating hole 12, the locking hole a4 is located below the operating hole 12, the welding head can pass through the operating hole 12 to weld the flat wire with welding in the clamping hole, the end of the fixing plate 1 is fixed with a guide shaft 6, and the movable block 7 is passed through The cylinder is driven to be slidably connected with the guide shaft 6, and the cylinder is fixed on the cylinder frame, and the cylinder frame is fixed on the movable block 7. The output end of the cylinder is connected and fixed to the fixed plate 1. The cylinder is actuated to drive the relative movement of the movable block 7 and the fixed plate 1. The two ends of the movable block 7 are rotatably connected to the connecting rod a8 and the connecting rod b9. The end of the connecting rod a8 is rotatably connected to the connecting arm a10, and the end of the connecting rod b9 is rotatably connected to the connecting arm b11. The connecting arm a10 is connected to the chuck a2, and the connecting arm b11 is connected to the chuck b3. The chuck a2 and the chuck b3 are both rotatably connected to the center shaft 13 through the bearing 14. An internal support positioning disc 15 is provided under the chuck b3, and the internal support positioning disc 15 is connected to the top fixed plate 1 through a connecting rod 16. The connecting rod 16 passes through the arc holes on the chuck a2 and the chuck b3. The chuck a2 and the chuck b3 will not interfere with the connecting rod 16 when rotating. The internal support positioning disc 15 enters the center hole of the stator 17 to perform internal support positioning on the stator 17. During operation, the movable block 7 moves along the guide shaft 6 driven by the cylinder, and the movable block 7 drives the connecting arm a10 and the connecting arm b11 to rotate through the connecting rod a8 and the connecting rod b9. The rotation of the connecting arm a10 and the connecting arm b11 respectively drives the chuck a2 and the chuck b3 to rotate synchronously around the central axis 13. The synchronous rotation of the chuck a2 and the chuck b3 makes the hole edges on both sides of the clamping hole formed by the locking hole a4 and the locking hole b5 move synchronously. When clamping is required, the hole edges on both sides move toward each other. When the flat wire is released, the hole edges move relatively. The flat wires of the stator 17 and the busbar 18 located in the clamping hole can be accurately clamped and positioned to ensure the normal progress of the welding operation.

[0019] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An auxiliary clamping device for welding a stator and a busbar, characterized in that: The invention comprises a fixed plate (1), a chuck a (2) and a chuck b (3) which are arranged in an upper and lower manner. The chuck a (2) is provided with a locking hole a (4), and the chuck b (3) is provided with a locking hole b (5) which matches the locking hole a (4). The fixed plate (1) is provided with an operating hole (12), and the locking hole a (4) is located below the operating hole (12). A guide shaft (6) is fixed at the end of the fixed plate (1), and a movable block (7) is slidably connected to the guide shaft (6) through a driving device. The two ends of the movable block (7) are rotatably connected to a connecting rod a (8) and a connecting rod b (9), and the end of the connecting rod a (8) is rotatably connected to a connecting arm a (10), and the end of the connecting rod b (9) is rotatably connected to a connecting arm b (11), and the connecting arm a (10) is connected to the chuck a (2), and the connecting arm b (11) is connected to the chuck b (3). The chuck a (2) and the chuck b (3) can rotate around a central axis (13).

2. The auxiliary clamping device for welding the stator and the busbar according to claim 1, characterized in that: The driving device is a cylinder.

3. The auxiliary clamping device for welding the stator and the busbar according to claim 2, characterized in that: The cylinder is fixed on a cylinder frame, the cylinder frame is fixed on a movable block (7), and the cylinder output end is connected and fixed to a fixed plate (1).

4. The auxiliary clamping device for welding the stator and the busbar according to claim 1, characterized in that: The bottom of the fixing plate (1) is fixed on the supporting frame.

5. The auxiliary clamping device for welding the stator and the busbar according to claim 1, characterized in that: The chuck a (2) and the chuck b (3) are both rotatably connected to the central shaft (13) via a bearing (14).

6. The auxiliary clamping device for welding the stator and the busbar according to claim 1, characterized in that: An inner support positioning disc (15) is provided below the chuck b (3), and the inner support positioning disc (15) is connected to the top fixing plate (1) via a connecting rod (16), and the connecting rod (16) passes through the arc-shaped holes on the chuck a (2) and the chuck b (3).

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