Clamping tool for machining automobile bumper support
By designing a clamping fixture with a protractor, the problem of determining the welding angle of the car bumper bracket was solved, thus improving the accuracy and efficiency of the welding process.
Patent Information
- Application Number
- CN202421932231.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-08-09
AI Technical Summary
In existing technologies, it is difficult to accurately determine the angle during the welding process of car bumper brackets, leading to welding errors and the need for re-welding.
A clamping fixture including a protractor is designed, comprising a rotating column, a fixing device, and a protractor. The welding angle is accurately determined by the protractor and the fixing device, and the workpiece is fixed by a cylinder and a fixing block.
It enables accurate angle determination during the welding process, avoiding welding errors caused by intuition and improving welding accuracy and efficiency.
Smart Images
Figure CN223476686U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of clamping equipment, specifically a clamping fixture for processing automobile bumper brackets. Background Art
[0002] Car bumper brackets are used to hold car bumpers. There are many types and various manufacturing processes, but the most common brackets are made by welding metal tubes, which is not only simple but also very practical.
[0003] In the existing technology, car mechanics often manually weld a simple bracket, the main material of which is a cylindrical steel pipe. The bracket can be directly welded according to the bumper of different cars, and the bracket can be welded according to the feel.
[0004] However, during the welding process, the angle between the welding supports cannot be accurately determined, which can easily lead to welding errors and may require re-welding. Utility Model Content
[0005] The purpose of this invention is to provide a clamping fixture for processing automotive bumper brackets, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a clamping fixture for processing automobile bumper brackets, comprising: a worktable, wherein a protractor is provided on the upper surface of the worktable, the protractor comprising a rotating column, a fixing device and two protractors, the rotating column extending into the upper wall of the worktable and rotatably connected thereto, the rotating column being fixedly connected to one end of each of the two protractors, the two protractors being provided with fixing devices, a first cylinder and multiple fixing blocks being fixedly installed on the upper surface of the worktable, and a push plate being fixedly installed on the output end of the first cylinder.
[0007] Preferably, the fixing device includes a positioning rod, a locking block, and a clamp. The positioning rod is disposed on the protractor, and a first sliding groove is formed on the lower surface of the positioning rod. The first sliding groove is slidably connected to the upper wall of the protractor. The locking block is disposed at one end of the positioning rod, and a second sliding groove is formed on the locking block. The clamp is slidably connected to the second sliding groove.
[0008] Preferably, a slide rod is fixedly installed in the second slide groove, and springs are provided at both ends of the slide rod.
[0009] Preferably, a triangular body is fixedly installed on the lower surface of the end of the positioning rod, and each protractor has multiple through holes.
[0010] Preferably, the upper surface of the workbench is provided with a first groove, a second groove and a plurality of right-angle baffles, a second cylinder is installed in the first groove and a push block is slidably connected in the second groove.
[0011] Preferably, both the push plate and the push block have an inclined surface on one side.
[0012] Compared with the prior art, the beneficial effects of the present invention are:
[0013] The present invention proposes that by using a rotating protractor and a fixing device that slides on the protractor, the appropriate angle can be selected and determined when welding different branches before welding. Therefore, the setting of the protractor effectively and accurately determines the angle corresponding to the welding, avoiding errors caused by feeling. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0015] Figure 2 This is a three-dimensional structural schematic diagram of the protractor of this utility model;
[0016] Figure 3 This is a three-dimensional structural diagram of the fixing device of this utility model;
[0017] Figure 4 This is a three-dimensional structural diagram of the pusher block of this utility model;
[0018] Figure 5 This is a three-dimensional structural diagram of the push plate of this utility model.
[0019] In the diagram: 1. Workbench; 2. Protractor; 3. First support; 4. Push plate; 5. First cylinder; 6. Main frame; 7. Fixing block; 8. First groove; 9. Second cylinder; 10. Second groove; 11. Push block; 12. Second support; 13. Right-angle baffle; 14. Rotating column; 15. Protractor; 16. Through hole; 17. Fixing device; 18. Positioning rod; 19. Clamping block; 20. Gripper; 21. Triangular body; 22. First slide groove; 23. Slide rod; 24. Spring; 25. Second slide groove; 26. Inclined surface. DETAILED DESCRIPTION
[0020] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0021] Example 1
[0022] Please see Figure 1 - Figure 3 This utility model provides a technical solution: a clamping fixture for processing automobile bumper brackets, comprising: a worktable 1, with a protractor 2 disposed on the upper surface of the worktable 1. The protractor 2 includes a rotating column 14, a fixing device 17, and two protractors 15, which are arranged side by side. The rotating column 14 extends into the upper wall of the worktable 1 and is rotatably connected thereto. The rotating column 14 is fixedly connected to one end of each of the two protractors 15, and the other ends of the two protractors 15 extend into the upper wall of the worktable 1, allowing the rotating column 14 to be used as a reference at any time. The shaft rotates and lifts up. Two protractors 15 are equipped with fixing devices 17. The fixing devices 17 are used to fix the main frame 6 with the first bracket 3. The position of the main frame 6 and the second bracket 12 to be welded can be fixed by the first bracket 3, that is, the relevant angle of the first bracket 3 and the second bracket 12 can be fixed. The upper surface of the worktable 1 is fixedly installed with a first cylinder 5 and multiple fixing blocks 7. The first cylinder 5 and multiple fixing blocks 7 can fix the main frame 6. The output end of the first cylinder 5 is fixedly installed with a push plate 4. The push plate 4 is used to press the main frame 6.
[0023] The fixing device 17 includes a positioning rod 18, a locking block 19, and a clamp 20. The positioning rod 18 is mounted on the protractor 15 and can be fixed to the protractor 15 by a screw at the rear. The screw passes through the side wall of one of the first sliding grooves 22 and presses against the upper wall of the protractor 15. Two first sliding grooves 22 are formed on the lower surface of the positioning rod 18. The first sliding grooves 22 are slidably connected to the upper wall of the protractor 15. When fixing is required, the screw can be turned. The locking block 19 is mounted on one end of the positioning rod 18. The center of the locking block 19 is on the same straight line as the center of the positioning rod 18. A second sliding groove 25 is formed on the locking block 19. Similarly, the second sliding groove 25 is arranged horizontally. The clamp 20 is slidably connected to the second sliding groove 25. The center of both clamps 20 and the center of the second sliding groove 25 are on the same straight line as the center of the positioning rod 18. The clamp 20 is used to clamp the first bracket 3 and fix it in a certain position. At the same time, the main rod will be fixed at a certain angle.
[0024] A slide rod 23 is fixedly installed inside the second slide groove 25. The slide rod 23 provides a movement track for the clamp 20. Springs 24 are set at both ends of the slide rod 23. The springs 24 provide clamping force for the clamp 20. If the two springs 24 are the same and the clamps 20 on both sides are the same, the center position of the clamp 20 is on the center line of the device. In this way, the rod diameter can be clamped each time and its center can be kept on the center line. A triangular body 21 is fixedly installed on the lower surface of the end of the positioning rod 18. The bottom of the triangular body 21 is set as a sharp angle. The direction of the sharp angle is its degree. The sharp angle is on the center line. Therefore, the degree of the sharp angle is the degree of the center line, which is the degree of the clamped first bracket 3. Each protractor 15 has multiple through holes 16. The through holes 16 are set to one every 15 degrees. In this way, when the first bracket 3 is far away from the protractor 2 and its degree cannot be determined, a person can look at the center of the first bracket 3 through two through holes 16 of the same degree. If it can be seen, it is aligned and the next operation can be carried out.
[0025] When in use, after the first bracket 3 has been welded and the angle between the second bracket 12 to be welded and the first bracket 3 is determined, move the protractor 2 to make its triangular body 21 point to this scale, then rotate the screw to fix it, and then make the first bracket 3 snap between the two clamps 20, and then weld the second bracket 12.
[0026] Example 2
[0027] Please see Figure 1 , Figure 4 and Figure 5 Based on Embodiment 1, the upper surface of the workbench 1 is provided with a first groove 8, a second groove 10 and several right-angle baffles 13. The first groove 8 and the second groove 10 have a common sidewall. A second cylinder 9 is installed in the first groove 8. A push block 11 is slidably connected in the second groove 10. The output end of the second cylinder 9 passes through the common sidewall of the first groove 8 and the second groove 10 and is slidably connected to it. The output end of the second cylinder 9 is fixedly connected to the push block 11. An inclined surface 26 is provided on one side of the push plate 4 and the push block 11. The inclined surface 26 is inclined downward. In this way, when the push plate 4 or the push block 11 is pushed to squeeze the steel pipe, under the action of the inclined surface 26, the push plate 4 or the push block 11 can always push the steel pipe to be pressed tightly against the ground.
[0028] In actual use, first use the push plate 4 to fix the main rod, then use the push block 11 to fix the first bracket 3 that needs to be welded and then weld it. At this time, the two must be perpendicular. When the first bracket 3 has been welded and the angle between the second bracket 12 to be welded and the first bracket 3 is determined, move the protractor 2 to make its triangular body 21 point to this scale, then turn the screw to fix it, and then make the first bracket 3 snap between the two clamps 20. Then weld the second bracket 12. Similarly, after determining the positional relationship with the first bracket 3, press the second bracket 12 with the push block 11 and then weld it.
[0029] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A clamping fixture for machining automotive bumper brackets, comprising: A workbench (1) is characterized in that: a protractor (2) is provided on the upper surface of the workbench (1), the protractor (2) includes a rotating column (14), a fixing device (17) and two protractors (15), the rotating column (14) extends into the upper wall of the workbench (1) and is rotatably connected thereto, the rotating column (14) is fixedly connected to one end of the two protractors (15) respectively, the two protractors (15) are provided with fixing devices (17), a first cylinder (5) and a plurality of fixing blocks (7) are fixedly installed on the upper surface of the workbench (1), and a push plate (4) is fixedly installed at the output end of the first cylinder (5).
2. The clamping fixture for processing automobile bumper brackets according to claim 1, characterized in that: The fixing device (17) includes a positioning rod (18), a locking block (19), and a clamp (20). The positioning rod (18) is mounted on the protractor (15). A first sliding groove (22) is provided on the lower surface of the positioning rod (18). The first sliding groove (22) is slidably connected to the upper wall of the protractor (15). The locking block (19) is mounted on one end of the positioning rod (18). A second sliding groove (25) is provided on the locking block (19). The clamp (20) is slidably connected to the second sliding groove (25).
3. A clamping fixture for processing automobile bumper brackets according to claim 2, characterized in that: A slide rod (23) is fixedly installed in the second slide groove (25), and springs (24) are provided at both ends of the slide rod (23).
4. A clamping fixture for processing automobile bumper brackets according to claim 3, characterized in that: A triangular body (21) is fixedly installed on the lower surface of the end of the positioning rod (18), and multiple through holes (16) are opened on each of the protractors (15).
5. A clamping fixture for processing automobile bumper brackets according to claim 4, characterized in that: The upper surface of the workbench (1) is provided with a first groove (8), a second groove (10) and several right-angle baffles (13). A second cylinder (9) is installed in the first groove (8), and a push block (11) is slidably connected in the second groove (10).
6. A clamping fixture for processing automobile bumper brackets according to claim 5, characterized in that: Both the push plate (4) and the push block (11) have a slope (26) on one side.