Special-shaped nut welding positioning device

Abstract

The utility model discloses a special-shaped nut welding positioning device which comprises a spot welding machine, a supporting and driving supporting frame is fixed on the front surface of the spot welding machine, a cavity is formed in the supporting and driving supporting frame, an adjusting piece is arranged in the cavity in a rotating mode, a supporting piece is fixed at the top end of the adjusting piece, and a driving piece is arranged in the top end of the supporting piece in a sliding mode. A rotating clamping plate is rotatably arranged at the top end of the driving part, a driven stand column is fixed to the bottom end of the rotating clamping plate, a driven roller is rotatably arranged at the bottom end of the driven stand column, a cavity is formed in the rotating clamping plate, a sliding clamping plate is slidably arranged at the top end in the cavity, and a driving screw is rotatably arranged at the bottom end in the cavity. The driving wedge block and the driven wedge block in the driving piece are matched with each other, the driven roller is pushed through the action of the inclined face, then the rotating clamping plate is driven to rotate, the angle of the special-shaped nut is flexibly adjusted, the angle adjusting process is stable and accurate, and the welding positioning accuracy is improved.

Description

A welding positioning device for irregular-shaped nuts Technical Field

[0001] This utility model relates to the field of nut welding technology, specifically a positioning device for welding irregular-shaped nuts. Background Technology

[0002] Welding of irregular-shaped nuts refers to the process of connecting nuts with special shapes (such as non-standard polygons, nuts with special bosses or grooves) to other metal parts by welding. Compared with ordinary nut welding, irregular-shaped nuts, due to their complex shapes, require more precise control of the welding position and angle to ensure welding quality and connection strength. Different shapes of irregular-shaped nuts have different heat conduction and stress distribution during the welding process, which requires more detailed adjustment of welding parameters. Spot welding machines are mechanical devices that use the principle of double-sided double-point overcurrent welding. During operation, two electrodes press the workpiece, causing the two layers of metal to form a certain contact resistance under the pressure of the two electrodes. When the welding current flows from one electrode to the other electrode, an instantaneous heat fusion is formed at the two contact resistance points. The welding current also flows instantaneously from the other electrode along the two workpieces to this electrode to form a circuit, without damaging the internal structure of the workpiece being welded.

[0003] In the current field of welding irregular-shaped nuts, the means of adjusting the angle of irregular-shaped nuts are limited and not precise enough. Traditional angle adjustment methods often fail to achieve smooth and subtle angle changes. This results in irregular-shaped nuts not being able to be precisely adjusted to the ideal welding angle during the welding process, which greatly affects the accuracy of welding positioning and thus reduces welding quality. In the clamping process of irregular-shaped nuts, most clamping methods cannot adapt well to irregular-shaped nuts of different sizes and shapes. It is difficult to achieve reliable clamping for irregular-shaped nuts with complex shapes. Nut displacement is prone to occur during the welding process, which seriously affects the stability and quality of the welding and cannot meet the growing demand for high-precision welding. Summary of the Invention

[0004] The purpose of this invention is to provide a welding positioning device for irregular-shaped nuts to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a welding and positioning device for irregularly shaped nuts, comprising a spot welding machine, a support frame fixed on the front surface of the spot welding machine, a cavity formed inside the support frame, an adjusting component rotating inside the cavity, a supporting component fixed at the top of the adjusting component, a driving component sliding inside the top of the supporting component, a rotating clamping plate rotating at the top of the driving component, a driven column fixed at the bottom of the rotating clamping plate, a driven roller rotating at the bottom of the driven column, a cavity formed inside the rotating clamping plate, a sliding clamping plate sliding at the top of the cavity, and a driving screw rotating at the bottom of the cavity, with the top of the driving screw meshing with the bottom of the sliding clamping plate.

[0006] Preferably, the bottom end of the sliding clamp is formed with an arc-shaped groove, and the groove is provided with a thread that matches the outer wall of the drive screw, thereby enabling the sliding clamp to move.

[0007] Preferably, the adjusting component includes a driving rod, the driving rod is rotatably mounted inside the support frame, a limit plate is fixed to one side wall of the support frame, a support-limiting slide is slidable on the outer wall of the driving rod, a limit insert is fixed to one side wall of the support-limiting slide, and a driving gear is fixed to one side outer wall of the driving rod.

[0008] Preferably, a limiting protrusion is fixed to one end of the drive rod, a first spring is fixed to one side of the protrusion, and the other end of the first spring is fixed to one side of the limiting slide plate, so that the limiting slide plate can be reset by its own elasticity. A limiting block is fixed to the outer wall of the drive rod, which can cooperate with the groove inside the limiting slide plate to limit the drive rod.

[0009] Preferably, the support includes a linkage rack, the linkage rack slides within the cavity of the support frame, and both sides of the linkage rack mesh with the drive gear. A support clamping rod is fixed to the top of the linkage rack, and a support clamping column is fixed to one side of the top of the support clamping rod.

[0010] Preferably, one side of the linkage rack is provided with teeth that match the outer wall of the drive gear, which can drive it to move.

[0011] Preferably, the driving component includes a driving wedge, the outer wall of the driving wedge is provided with a clamping column, the interior of the clamping column is formed with a cavity, the cavity is slidably connected to the driving wedge, a driven wedge is fixed to one side of the driving wedge, and a reset telescopic rod is fixed to one side of the driven wedge.

[0012] Preferably, a second spring is fixed to the outer wall of the reset telescopic rod, which can drive the driven wedge block to reset through its own elastic force.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The driving wedge and driven wedge in the driving component cooperate with each other to push the driven roller through the inclined plane, which in turn drives the rotating clamp to rotate, so as to flexibly adjust the angle of the irregular nut. The angle adjustment process is smooth and precise, which improves the accuracy of welding positioning.

[0015] The drive screw inside the rotating clamping plate engages with the sliding clamping plate via threads. Rotating the drive screw causes the threads on its outer wall to drive the sliding clamping plate to move within the cavity inside the rotating clamping plate. The tight fit between the arc-shaped groove at the bottom of the sliding clamping plate and the threads on the outer wall of the drive screw ensures reliable clamping of irregularly shaped nuts. This clamping method can accommodate irregularly shaped nuts of different sizes and shapes, ensuring that the nuts will not shift during welding, thus improving welding quality and stability.

[0016] The entire device can be operated by simply rotating the drive rod, the drive screw, and pushing the drive wedge to adjust the angle and clamp and position the nut. The operation process is simple, which improves work efficiency and reduces the difficulty of manual operation. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the structure of this utility model;

[0018] Figure 2 is a side view sectional view of the connection structure in Figure 1;

[0019] Figure 3 is a schematic diagram of the front cross-sectional connection structure of Figure 1;

[0020] Figure 4 is a front view cross-sectional view of the connection structure of the drive component in Figure 1;

[0021] Figure 5 is a top view of the connection structure of the adjusting component and the supporting component in Figure 1.

[0022] Figure 6 is a schematic diagram of the enlarged connection structure at point A in Figure 2;

[0023] Figure 7 is a schematic diagram of the enlarged connection structure at point B in Figure 3.

[0024] In the diagram: 1. Spot welding machine, 2. Support frame, 3. Drive rod, 4. Limiting plate, 5. Support plate, 6. Limiting rod, 7. Drive gear, 8. Linkage rack, 9. Supporting vertical rod, 10. Supporting column, 11. Drive wedge, 12. Driven wedge, 13. Reset telescopic rod, 14. Rotating clamp, 15. Driven column, 16. Driven roller, 17. Sliding clamp, 18. Drive screw. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please refer to Figures 1-7. This utility model provides a technical solution: a welding and positioning device for irregularly shaped nuts, including a spot welding machine 1. A support frame 2 is fixed to the front surface of the spot welding machine 1. A cavity is formed inside the support frame 2. An adjusting component rotates inside the cavity. A supporting component is fixed to the top of the adjusting component. A driving component slides inside the top of the supporting component. A rotating clamping plate 14 rotates to the top of the driving component. The rotating clamping plate 14 can drive a sliding clamping plate 17 to rotate, thereby adjusting the angle of the irregularly shaped nut. A driven column 15 is fixed to the bottom end of the rotating clamping plate 14. The driven column 15 can support a driven roller 16. The driven roller 16 rotates to the bottom end of the driven column 15. Driven roller 16 drives rotating clamp 14 to rotate via the inclined surface of driven wedge 12. A cavity is formed inside rotating clamp 14, and sliding clamp 17 slides at the top of the cavity. The sliding clamp 17 adjusts its travel by driving screw 18. Driving screw 18 rotates at the bottom of the cavity, and the top of driving screw 18 meshes with the bottom of sliding clamp 17. Driving screw 18 drives sliding clamp 17 to move via threads on its outer wall. An arc-shaped groove is formed at the bottom of sliding clamp 17, and threads matching the outer wall of driving screw 18 are provided in the groove, thereby driving sliding clamp 17 to move.

[0027] The adjusting component includes a drive rod 3, which rotates inside the support frame 2. The drive rod 3 provides power to the drive gear 7. A limit plate 4 is fixed to one side wall of the support frame 2. The limit plate 4 limits the drive rod 3 through a limit hole on one side wall. A support plate 5 slides on the outer wall of the drive rod 3. The support plate 5 supports the limit rod 6. A limit rod 6 is fixed to one side wall of the support plate 5. The limit rod 6 limits the drive rod 3 through a limit hole on one side of the limit plate 4. A drive gear 7 is fixed to one side of the outer wall of the drive rod 3. The drive gear 7 can drive the linkage rack 8 to move through the drive rod 3. A limit protrusion is fixed to one end of the drive rod 3. A first spring is fixed to one side of the protrusion. The other end of the first spring is fixed to one side of the support plate 5. Thus, the support plate 5 can be reset through its own elasticity. A limit block is fixed to the outer wall of the drive rod 3. It can cooperate with the groove inside the support plate 5 to limit the drive rod 3.

[0028] The support includes a linkage rack 8, which slides within the cavity of the support frame 2. Both sides of the linkage rack 8 mesh with the drive gear 7. Driven by the drive gear 7, the linkage rack 8 can move the clamping rod 9. The top of the linkage rack 8 is fixed with the clamping rod 9, which supports the clamping column and moves it. A clamping column 10 is fixed to one side of the top of the clamping rod 9, which supports the rotating clamping plate 14 and provides it with a fulcrum for rotation. One side of the linkage rack 8 is provided with teeth that match the outer wall of the drive gear 7, which can drive it to move.

[0029] The driving component includes a driving wedge 11. The outer wall of the driving wedge 11 is provided with a clamping column 10. The interior of the clamping column 10 is formed with a cavity. The cavity is slidably connected to the driving wedge 11. The driving wedge 11 drives the driven wedge 12 to move through an inclined surface on one side. The driven wedge 12 is fixed to one side of the driving wedge 11. The driven wedge 12 can drive the driven roller 16 to move through the driving of the driving wedge 11 and the inclined surface on one side. A reset telescopic rod 13 is fixed to one side of the driven wedge 12. The reset telescopic rod 13 can drive the driven wedge 12 to reset through a spring provided on its outer wall. A second spring is fixed to the outer wall of the reset telescopic rod 13. The spring force of the reset telescopic rod 13 can drive the driven wedge 12 to reset.

[0030] Its detailed connection method is a well-known technology in this field. The following mainly introduces the working principle and process, and the specific work is as follows.

[0031] The support plate 5 moves forward, causing the limiting rod 6 to move forward and disengage from the limiting hole on one side of the limiting plate 4, thus releasing the limitation on the drive rod 3. The drive rod 3 is rotated, causing the drive gear 7 to rotate. The rotation of the drive gear 7 drives the linkage rack 8 to move left and right through the teeth on the outer wall. The linkage rack 8 drives the clamping vertical rod 9 to move left and right. When the clamping vertical rod 9 moves left and right, the clamping column 10 also moves accordingly. Then, the workpiece is placed on the inclined surface of the drive wedge 11, and the workpiece is pressed down. The workpiece drives the driven component through the inclined surface of the drive wedge 11. The wedge 12 moves left and right. The driven wedge 12 moves left and right, driving the driven roller 16 to move upward through the inclined surface on one side. The driven roller 16 drives one end of the rotating clamping plate 14 to rotate upward through the driven column 15. The one end of the rotating clamping plate 14 rotates upward through the rotation fulcrum provided by the support column 10, causing the other end to rotate downward. The rotating drive screw 18 rotates, driving the sliding clamping plate 17 to move. The other end of the rotating clamping plate 14 drives the sliding clamping plate 17 to move downward. The sliding clamping plate 17 moves downward to clamp the irregular nut at the top of the workpiece.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding and positioning device for irregularly shaped nuts, comprising a spot welding machine (1), characterized in that, The front surface of the spot welding machine (1) is fixed with a support frame (2). A cavity is formed inside the support frame (2). An adjusting component rotates inside the cavity. A supporting component is fixed at the top of the adjusting component. A driving component slides inside the top of the supporting component. A rotating clamping plate (14) rotates at the top of the driving component. A driven column (15) is fixed at the bottom of the rotating clamping plate (14). A driven roller (16) rotates at the bottom of the driven column (15). A cavity is formed inside the rotating clamping plate (14). A sliding clamping plate (17) slides at the top of the cavity. A driving screw (18) rotates at the bottom of the cavity. The top of the driving screw (18) meshes with the bottom of the sliding clamping plate (17).

2. A profile nut welding positioning device according to claim 1, characterized in that, The bottom end of the sliding clamp (17) is formed with an arc-shaped groove, and the groove is provided with a thread that matches the outer wall of the drive screw (18), so that the sliding clamp (17) can be driven to move.

3. The non-standard nut welding positioning device according to claim 1, characterized in that, The adjusting component includes a drive rod (3), the drive rod (3) is rotated inside the support frame (2), a limit plate (4) is fixed on one side wall of the support frame (2), a support plate (5) slides on the outer wall of the drive rod (3), a limit rod (6) is fixed on one side wall of the support plate (5), and a drive gear (7) is fixed on one side outer wall of the drive rod (3).

4. The non-standard nut welding positioning device according to claim 3, characterized in that, One end of the drive rod (3) is fixed with a limiting protrusion, and a first spring is fixed on one side of the protrusion. The other end of the first spring is fixed on one side of the limiting slide plate (5), so that the limiting slide plate (5) can be reset by its own elasticity. The outer wall of the drive rod (3) is fixed with a limiting block, which can cooperate with the groove inside the limiting slide plate (5) to limit the drive rod (3).

5. The non-standard nut welding positioning device according to claim 1, characterized in that, The support includes a linkage rack (8), the linkage rack (8) slides in the cavity of the support frame (2), and the two sides of the linkage rack (8) mesh with the drive gear (7). A support clamping rod (9) is fixed at the top of the linkage rack (8), and a support clamping column (10) is fixed on one side of the top of the support clamping rod (9).

6. The non-standard nut welding positioning device according to claim 5, characterized in that, The linkage rack (8) is provided with teeth on one side that match the outer wall of the drive gear (7), which can drive it to move.

7. The non-standard nut welding positioning device according to claim 1, characterized in that, The driving component includes a driving wedge (11), and a clamping column (10) is provided on the outer wall of the driving wedge (11). A cavity is formed inside the clamping column (10), and the cavity is slidably connected to the driving wedge (11). A driven wedge (12) is fixed on one side of the driving wedge (11), and a reset telescopic rod (13) is fixed on one side of the driven wedge (12).

8. A profile nut welding positioning device according to claim 7, characterized in that, The outer wall of the reset telescopic rod (13) is fixed with a second spring, which can drive the driven wedge (12) to reset through its own elastic force.

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