Simple electric control automatic rotating spot welding clamp

Abstract

The utility model relates to the technical field of fixing clamps for automobile part machining, in particular to a simple electric control automatic rotating spot welding clamp which comprises a bottom plate, a protection assembly arranged on the bottom plate, a clamping assembly arranged on the protection assembly and an automatic propelling assembly matched with the clamping assembly. The clamping assembly comprises a first clamping station and a second clamping station, and the automatic pushing assembly can swing between the first clamping station and the second clamping station back and forth around the upper end of the supporting foot stand and is clamped when attached to the first clamping station or the second clamping station. The welding production efficiency is effectively improved through cooperation of the multiple air cylinders, circulation of procedures is avoided, the gear and rack rotation positioning precision is reliable, the time for primary debugging of production is shortened, the maintenance cost is reduced, and the occupied area of a welding tool is saved.

Description

Technical Field

[0001] This utility model relates to the technical field of fixing fixtures for automotive parts processing, specifically a simple electrically controlled automatic rotary spot welding fixture. Background Technology

[0002] After the various sub-components of automotive parts are manufactured and formed, spot welding is usually required to form sub-assemblies according to the processing requirements. During this process, fixtures are needed to clamp and position the parts to facilitate the smooth implementation of the spot welding process.

[0003] However, due to the special shape of the parts, traditional fixtures can no longer meet the welding requirements. The traditional fixture design restricts the accessibility of the welding clamp during the welding process, requiring a change of production process, which affects the production efficiency of the automotive parts. Summary of the Invention

[0004] To address the aforementioned problems, this invention proposes a simple electrically controlled automatic rotary spot welding fixture.

[0005] A simple electrically controlled automatic rotary spot welding fixture includes a base plate, a protective assembly disposed on the base plate, a clamping assembly disposed on the protective assembly, and an automatic pushing assembly that cooperates with the clamping assembly;

[0006] The clamping assembly includes a clamping station one and a clamping station two. The automatic propulsion assembly can swing back and forth between the clamping station one and the clamping station two around the upper end of the support frame, and is clamped when it is in contact with the clamping station one or the clamping station two.

[0007] The beneficial effects of this utility model are: by using multiple cylinders in combination, this utility model can effectively improve welding production efficiency, avoid process transfer, ensure reliable gear and rack rotation positioning accuracy, reduce the time for initial production debugging, reduce maintenance costs, and save the space required for welding fixtures. Attached Figure Description

[0008] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0009] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0010] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0011] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0012] Figure 4 for Figure 3A magnified structural diagram at point A;

[0013] Figure 5 This is a schematic diagram of the clamping station one and clamping station two of this utility model.

[0014] Reference numerals in the attached diagram: 1. Base plate; 2. Supporting leg; 3. Single-row reversing valve cover; 4. Two-piece protective cover; 5. Inspection pin hole cover plate; 6. Cylinder 1; 7. Slide rail; 8. Rack; 9. Gear; 10. Rotating shaft; 11. Cylinder 2; 12. Cylinder 3; 13. Rotary welding fixed bracket; 14. Buffer; 15. Microswitch 1; 16. Microswitch 2; 17. Pressure block 1; 18. Pressure block 2; 19. Limiting pad. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the utility model will be further described below.

[0016] like Figures 1 to 5 As shown, a simple electrically controlled automatic rotary spot welding fixture includes a base plate 1, a protective component disposed on the base plate 1, a clamping component disposed on the protective component, and an automatic pushing component that cooperates with the clamping component;

[0017] The clamping assembly includes clamping station one and clamping station two. The automatic propulsion assembly can swing back and forth between clamping station one and clamping station two around the upper end of the support frame 2, and is clamped when it is in contact with clamping station one or clamping station two. This utility model can realize the position switching of the two stations, and can be clamped and positioned when the automatic propulsion assembly reaches clamping station one or clamping station two, thereby assisting in the clamping of automotive parts and facilitating spot welding processing at relevant stations.

[0018] like Figure 1 and Figure 2 As shown, the protective assembly includes a support bracket 2, a single-row reversing valve cover 3 mounted on the support bracket 2, a two-piece protective cover 4, and a test pin hole cover plate 5 for covering the pin shaft.

[0019] like Figure 5 As shown, the clamping station includes a second cylinder 11 mounted on the upper end of the support frame 2, and a pressure block 17 driven by the second cylinder 11 for clamping. A micro switch 15 is provided on the support frame 2 near the pressure block 17. When the automatic propulsion component rotates to the clamping station, it will trigger the micro switch 15, and the automatic propulsion component will stop rotating. At the same time, the second cylinder 11 starts working, driving the pressure block 17 to move and press down on the automatic propulsion component, completing the clamping action.

[0020] like Figure 5As shown, the second clamping station includes a third cylinder 12 mounted on the upper end of the support leg 2, and a second pressure block 18 driven by the third cylinder 12 for clamping. A second micro switch 16 is provided on the support leg 2 near the second pressure block 18. Similarly, when the automatic propulsion component rotates to the second clamping station, the second micro switch 16 will activate, and the automatic propulsion component will stop rotating. At the same time, the third cylinder 12 will start working, driving the second pressure block 18 to move and press down on the automatic propulsion component, completing the clamping action.

[0021] This invention utilizes the cooperation between cylinders and the control of the air circuit to ensure the repeatability of the positioning accuracy after the fixture reverses, control the opening and clamping actions of the fixture, improve welding efficiency, enhance operational safety, and reduce process and site costs.

[0022] like Figure 5 As shown, a buffer 14 is provided on the support leg 2 near the clamping station 1 and clamping station 2 to buffer the automatic propulsion component when it comes into contact with the clamping station 1 and clamping station 2.

[0023] like Figure 5 As shown, the automatic propulsion assembly includes a rotary welding fixing bracket 13 capable of horizontal rotation relative to the supporting leg 2. After rotating relative to the supporting leg 2, the rotary welding fixing bracket 13 can move back and forth between clamping station one and clamping station two. Driven by a driving force, the rotary welding fixing bracket 13 of this invention can rotate around a horizontal axis. When it reaches the corresponding positions of clamping station one and clamping station two, it can assume two parking postures to meet the welding position requirements during spot welding.

[0024] In one embodiment of this utility model, the rotary welding fixing bracket 13 has a rotating shaft 10, which is rotatably mounted on the support leg 2 via a bearing.

[0025] In one embodiment of the present invention, the automatic propulsion assembly further includes a drive mechanism that drives the rotating shaft 10 to rotate.

[0026] In one embodiment of this invention, the driving mechanism includes a cylinder 6 mounted on the support bracket 2, and the output shaft of the cylinder 6 drives the rotating shaft 10 to rotate via a gear and rack mechanism. Of course, other driving mechanisms can also be used in this invention, as long as they can also achieve the reciprocating rotation of the rotating shaft 10.

[0027] In one embodiment of this utility model, the gear and rack mechanism includes a slide rail 7 that can slide vertically relative to the supporting bracket 2, a rack 8 mounted on the slide rail 7, and a gear 9 fixed on the rotating shaft 10 and meshing with the rack 8. When the output shaft of cylinder 6 moves upward, as... Figure 5As shown, this will cause the rack 8 to move upwards, thus causing the gear 9 to rotate clockwise. The rotary welding fixture 13 will also rotate clockwise synchronously, allowing the rotary welding fixture 13 to switch from clamping position one to clamping position two. Conversely, when the output shaft of cylinder 6 moves downwards, the rotary welding fixture 13 can switch from clamping position two to clamping position one. The sliding engagement between the slide rail and the rack ensures reliable rotational positioning accuracy, reduces initial production debugging time, lowers maintenance costs, and saves on the footprint required for welding fixtures.

[0028] Specifically, the slide rail 7 is connected to the output shaft of the cylinder 6.

[0029] As one embodiment of the present invention, the rotary welding fixing bracket 13 is provided with a limiting pad 19. When the limiting pad 19 rotates with the rotary welding fixing bracket 13 to reach the corresponding clamping station one or clamping station two, it can touch the micro switch one 15, the micro switch two 16 and the corresponding buffer 14.

[0030] The operation method of this utility model:

[0031] After the parts are installed on the rotary welding fixed bracket 13, the external PLC controls the cylinder 3 12 to drive the pressure block 2 18 to the open state. At the same time, the output shaft of the cylinder 1 6 moves upward to drive the rotary welding fixed bracket 13 to rotate to the clamping station 2 and touch the micro switch 2 16 and the corresponding buffer 14. After that, the cylinder 3 12 drives the pressure block 2 18 to press the limit pad 19, completing the clamping of the rotary welding fixed bracket 13, and spot welding can be performed at this station.

[0032] After spot welding at clamping station two is completed, cylinder three 12 drives pressure block two 18 to loosen the clamp, and at the same time, the output shaft of cylinder one 6 moves down, driving the rotary welding fixed bracket 13 to rotate to clamping station one and touch micro switch one 15 and the corresponding buffer 14. After that, cylinder two 11 drives pressure block one 17 to press against the limit pad 19, completing the clamping of the rotary welding fixed bracket 13, and spot welding can be performed at this station.

[0033] Finally, cylinder 211 drives pressure block 17 to loosen and clamp, completing a single operation.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A simple electrically controlled automatic rotary spot welding fixture, comprising a base plate (1), characterized in that: It also includes a protective assembly mounted on the base plate (1), a clamping assembly mounted on the protective assembly, and an automatic propulsion assembly that cooperates with the clamping assembly; The clamping assembly includes a clamping station one and a clamping station two. The automatic propulsion assembly can swing back and forth between the clamping station one and the clamping station two around the upper end of the support leg (2), and is clamped when it is in contact with the clamping station one or the clamping station two.

2. A simple electrically controlled automatic rotary spot welding fixture according to claim 1, characterized in that: The protective components include a support bracket (2), a single-row reversing valve cover (3) mounted on the support bracket (2), a two-piece protective cover (4), and a test pin hole cover plate (5) for covering the pin shaft.

3. A simple electrically controlled automatic rotary spot welding fixture according to claim 1, characterized in that: The clamping station includes a cylinder 2 (11) installed on the upper end of the support leg (2) and a pressure block 1 (17) driven by the cylinder 2 (11) to perform clamping. A micro switch 1 (15) is provided on the support leg (2) and near the pressure block 1 (17).

4. A simple electrically controlled automatic rotary spot welding fixture according to claim 1, characterized in that: The clamping station 2 includes a cylinder 3 (12) installed on the upper end of the support leg (2), a pressure block 2 (18) driven by the cylinder 3 (12) to perform clamping, and a micro switch 2 (16) is provided on the support leg (2) and near the pressure block 2 (18).

5. A simple electrically controlled automatic rotary spot welding fixture according to claim 1, characterized in that: A buffer (14) is provided on the support leg (2) near the clamping station one and clamping station two to buffer the automatic propulsion component when it comes into contact with the clamping station one and clamping station two.

6. A simple electrically controlled automatic rotary spot welding fixture according to claim 1, characterized in that: The automatic propulsion assembly includes a rotary welding fixing bracket (13) that can rotate horizontally relative to the support leg (2). After rotating relative to the support leg (2), the rotary welding fixing bracket (13) can move back and forth between clamping station one and clamping station two.

7. A simple electrically controlled automatic rotary spot welding fixture according to claim 6, characterized in that: The rotary welding fixing bracket (13) has a rotating shaft (10), which is rotatably mounted on the support leg (2) via a bearing.

8. A simple electrically controlled automatic rotary spot welding fixture according to claim 7, characterized in that: The automatic propulsion assembly also includes a drive mechanism that drives the rotating shaft (10) to rotate.

9. A simple electrically controlled automatic rotary spot welding fixture according to claim 8, characterized in that: The drive mechanism includes a cylinder (6) mounted on a support bracket (2), and the output shaft of the cylinder (6) drives the rotating shaft (10) to rotate through a gear and rack mechanism.

10. A simple electrically controlled automatic rotary spot welding fixture according to claim 9, characterized in that: The gear and rack mechanism includes a slide rail (7) that can slide vertically relative to the support bracket (2), a rack (8) mounted on the slide rail (7), and a gear (9) fixed on the rotating shaft (10) and meshing with the rack (8).

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