Motor seat and cover fixing sheet spot welding die

Abstract

The utility model discloses a motor seat and cover fixed piece spot welding mould, including bottom plate, rear fixed block, stand, telescopic cylinder, front fixed block, inner fixed block and cushion block, front end positioning baffle, rear fixed block, stand, cushion block are fixedly installed on the bottom plate, the cylinder body fixed mounting of telescopic cylinder is on the rear fixed block, and the inner fixed block front end has first step limit surface, and the both sides fixed mounting of inner fixed block has quick clamp, and the fixed mounting of positioning pin has on the cushion block, and the front end positioning baffle fixed mounting is on the cushion block outer end face. This spot welding mould respectively to motor seat and cover fixed piece clamping fixed spot welding operation is carried out after, has the advantages such as high positioning accuracy, clamping speed is fast, and after motor seat and cover fixed piece spot welding assembly are completed, and it is convenient to demould and take out.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle frame manufacturing technology, and in particular relates to a spot welding mold for a motor mount and a cover fixing piece. Background Technology

[0002] Motor mounts and cover fixing plates are components of bicycle or electric vehicle frames. When they are spot welded together, they need to be clamped and fixed separately. During clamping and fixing, it is necessary to ensure the position accuracy and firmness of the motor mounts and cover fixing plates to improve the quality of the spot-welded product. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a spot welding mold for a motor seat and a cover fixing piece with high positioning accuracy and fast clamping speed.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: a spot welding mold for a motor base and a cover fixing piece, comprising a base plate, a rear fixing block, a column, a telescopic cylinder, a front fixing block, an inner fixing block, a pad block, and a front positioning baffle. The rear fixing block, column, and pad block are all fixedly installed on the base plate. The cylinder body of the telescopic cylinder is fixedly installed on the rear fixing block. The front end of the inner fixing block has a first step limiting surface. Quick clamps are fixedly installed on both sides of the inner fixing block. A positioning pin is fixedly installed on the pad block. The front positioning baffle is fixedly installed on the outer end face of the pad block. The front fixing block is fixedly installed on the top of the column. The rear fixing block and the front fixing block are respectively provided with a first pin hole and a second pin hole. The piston rod of the telescopic cylinder slides through the column and is fixedly connected to the inner fixing block.

[0005] Preferably, the inner fixing block has a U-shaped guide groove on its rear side, and the U-shaped guide groove is slidably sleeved on the column.

[0006] Preferably, the base plate is provided with a first positioning groove, and the rear fixing block, column, and pad are screwed and fixedly installed in the positioning groove of the base plate. The top of the column is provided with a second positioning groove, and the front fixing block is screwed and fixedly installed in the second positioning groove.

[0007] Preferably, the bottom surface of the inner fixing block has a second stepped limiting surface.

[0008] Compared with the prior art, the advantages of this utility model are: this spot welding mold clamps and fixes the motor seat and the cover fixing piece respectively before spot welding, which has the advantages of high positioning accuracy and fast clamping speed. After the motor seat and the cover fixing piece are spot welded and assembled, it is easy to demold and remove them. Attached Figure Description

[0009] The present invention will be further described below with reference to the accompanying drawings.

[0010] Figure 1 This is a perspective view of the front side of this utility model.

[0011] Figure 2 This is a perspective view of the rear side of this utility model. Figure 3 This is a diagram showing the structure of the locating pin.

[0012] Figure 4 This is a rear view of the present invention.

[0013] Figure 5 yes Figure 4 A sectional view along the AA direction.

[0014] Figure 6 It is a 3D view of the installation structure of the internal fixing block and the column.

[0015] Figure 7 This is a 3D view of the internal fixation block.

[0016] Figure 8 It is a 3D view of the finished product with the motor mount and the cover fixing piece spot welded together. Detailed Implementation

[0017] The present invention will now be described in detail with reference to specific embodiments: like Figures 1 to 8 The above describes a spot welding mold for a motor base and a cover fixing piece, comprising a base plate 1, a rear fixing block 2, a column 3, a telescopic cylinder 4, a front fixing block 5, an inner fixing block 6, a pad block 7, and a front positioning baffle 8. The rear fixing block 2, the column 3, and the pad block 7 are all fixedly installed on the base plate 1. The cylinder body of the telescopic cylinder 4 is fixedly installed on the rear fixing block 2. The front end of the inner fixing block 6 has a first step limiting surface 62. Quick clamps 61 are fixedly installed on both sides of the inner fixing block 6. A positioning pin 71 is fixedly installed on the pad block 7. The front positioning baffle 8 is fixedly installed on the outer end face of the pad block 7. The front fixing block 5 is fixedly installed on the top of the column 3. The rear fixing block 2 and the front fixing block 5 are respectively provided with a first pin hole 21 and a second pin hole 51. The piston rod of the telescopic cylinder 4 slides through the column 3 and is fixedly connected to the inner fixing block 6.

[0018] The inner fixing block 6 has a U-shaped guide groove 63 on its rear side. The U-shaped guide groove 63 is slidably sleeved on the column 3. The U-shaped guide groove 63 cooperates with the column 3 to guide the inner fixing block 6 and improve the straightness of the inner fixing block 6 when it moves back and forth with the piston rod of the telescopic cylinder 4.

[0019] The base plate 1 is provided with a first positioning groove. The rear fixing block 2, the column 3, and the pad 7 are screwed and fixedly installed in the positioning groove of the base plate 1. The top of the column 3 is provided with a second positioning groove. The front fixing block 5 is screwed and fixedly installed in the second positioning groove. By setting the first positioning groove and the second positioning groove, the positioning speed during the installation of the rear fixing block 2, the column 3, the pad 7, and the front fixing block 5 can be improved, as well as the firmness after the rear fixing block 2, the column 3, the pad 7, and the front fixing block 5 are installed and fixed.

[0020] The bottom surface of the inner fixing block 6 has a second step limiting surface 64, which presses on the sealing fixing piece 92 to restrict the degree of freedom of the sealing fixing piece 92 to move upward.

[0021] First, clamp and fix the cover fixing piece 92. The cover fixing piece 92 is placed on the pad 7. The positioning hole 921 of the cover fixing piece 92 is sleeved on the positioning pin 71. The positioning pin 71 plays a pre-positioning role for the cover fixing piece 92. The piston rod of the telescopic cylinder 4 extends and pushes the inner fixing block 6 to move towards the cover fixing piece 92. The first step limiting surface 62 of the inner fixing block 6 cooperates with the front positioning baffle 8 to fix and restrict the freedom of the cover fixing piece 92 in the front-back direction. Press down the two quick clamps 61 on both sides of the inner fixing block 6. The pressure head of the quick clamp 61 fixes and restricts the freedom of the cover fixing piece 92 in the left-right direction. The second step limiting surface 64 presses on the cover fixing piece 92. The second step limiting surface 64 cooperates with the pad 7 to fix and restrict the freedom of the cover fixing piece 92 in the up-down direction.

[0022] Then clamp and fix the motor base 91, and connect and fix the through hole 911 of the motor base 91 to the first pin hole 21 and the second pin hole 51 through the pin and lock nut. The motor base 91 is clamped and fixed on the rear fixing block 2 and the front fixing block 5.

[0023] Finally, spot welding is performed on the joint 10 between the motor base 91 and the cover fixing piece 92 using a welding torch.

Claims

1. A spot welding mold for a motor mount and a cover fixing piece, characterized in that: The device includes a base plate (1), a rear fixing block (2), a column (3), a telescopic cylinder (4), a front fixing block (5), an inner fixing block (6), a pad (7), and a front positioning baffle (8). The rear fixing block (2), the column (3), and the pad (7) are all fixedly installed on the base plate (1). The cylinder body of the telescopic cylinder (4) is fixedly installed on the rear fixing block (2). The front end of the inner fixing block (6) has a first step limiting surface (62). Quick clamps (61) are fixedly installed on both sides of the inner fixing block (6). A positioning pin (71) is fixedly installed on the pad (7). The front positioning baffle (8) is fixedly installed on the outer end face of the pad (7). The front fixing block (5) is fixedly installed on the top of the column (3). The rear fixing block (2) and the front fixing block (5) are respectively provided with a first pin hole (21) and a second pin hole (51). The piston rod of the telescopic cylinder (4) slides through the column (3) and is fixedly connected to the inner fixing block (6).

2. The spot welding mold for the motor base and the cover fixing piece according to claim 1, characterized in that: The inner fixing block (6) has a U-shaped guide groove (63) on its rear side, and the U-shaped guide groove (63) is slidably sleeved on the column (3).

3. The spot welding mold for the motor base and the cover fixing piece according to claim 1, characterized in that: The base plate (1) is provided with a first positioning groove, and the rear fixing block (2), column (3) and pad (7) are screwed and fixed in the positioning groove of the base plate (1). The top of the column (3) is provided with a second positioning groove, and the front fixing block (5) is screwed and fixed in the second positioning groove.

4. The spot welding mold for the motor base and the cover fixing piece according to claim 1, characterized in that: The bottom surface of the inner fixing block (6) has a second step limiting surface (64).

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