Positioning clamp for punching automobile fender
By designing a positioning fixture that coordinates the operation of multiple motors and threaded rods, the problem of unstable positioning of the mudguard during the drilling process was solved, thereby improving the stability and accuracy of the mudguard drilling.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHU MEISEN ELECTRONICS CO LTD
- Filing Date
- 2025-04-26
- Publication Date
- 2026-04-17
AI Technical Summary
During the process of drilling holes in car mudguards, existing technologies are difficult to effectively clamp and position the mudguards, causing them to move or wobble during the drilling process, which affects the stability of the drilling.
A positioning fixture for opening holes in automobile mudguards was designed. Through the coordinated action of multiple motors and threaded rods, the mudguards are accurately positioned and securely clamped. The fixture includes a third motor driving a third threaded rod to rotate, causing the clamping plate to move downwards; a first motor driving a first threaded rod to rotate, causing the limiting seat to move the slide groove; a second motor driving a second threaded rod to rotate, causing the limiting slider to move, until the mudguard is fixed in the appropriate position; and a third motor driving a lower pressure block to move downwards for clamping.
Stable clamping was achieved when the mudguard was drilled, which improved the stability and accuracy of the drilling and ensured that the mudguard did not move or shake during the drilling process.
Smart Images

Figure CN224129131U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automotive mudguard hole-making technology, and in particular relates to a positioning clamp for automotive mudguard hole-making. Background Technology
[0002] Car mudguards are components installed on the outer edge of car wheels. Their main function is to prevent mud, water, stones and other debris splashed up by the wheels from damaging the car body while driving. They also serve an aesthetic purpose. During the manufacturing process of car mudguards, holes are usually made on the surface of the mudguard for installation and fixing.
[0003] Currently, people usually use drilling machines to drill holes in car mudguards. When drilling holes in mudguards, the clamping and positioning of the mudguards is crucial. Unstable clamping may cause the mudguards to move or shake during the drilling process. Therefore, a positioning fixture for drilling holes in car mudguards is needed to clamp and position the mudguards during drilling, thereby improving the stability of the mudguard drilling process. Utility Model Content
[0004] The purpose of this utility model is to provide a positioning clamp for opening holes in automobile mudguards, which can clamp and position the mudguards when opening holes, thereby improving the stability of the mudguards during the opening process, and thus solving the aforementioned background technical problems.
[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A positioning fixture for opening holes in automobile mudguards includes a fixed plate fixedly installed on the surface of an opening machine; a threaded rod is rotatably connected to the inner wall of the fixed plate, the threaded rod penetrates the fixed plate; a motor is fixedly installed on the surface of the fixed plate, the output shaft of the motor is fixedly connected to the threaded rod; a limiting seat is provided in the inner cavity of the fixed plate, the threaded rod penetrates the limiting seat and is threadedly connected to the limiting seat; a sliding groove is fixedly connected to the top of the limiting seat; a limiting slider is provided in the inner cavity of the sliding groove; a threaded rod is rotatably connected to the inner wall of the sliding groove, the threaded rod penetrates the sliding groove, the threaded rod penetrates the limiting slider and is threadedly connected to the limiting slider; the sliding... A second motor is fixedly installed on the surface of the groove. The output shaft of the second motor is fixedly connected to the second threaded rod. A lower mold with an opening is fixedly connected to the top of the limiting slider by welding. A clamping plate is provided on the top of the lower mold with an opening. A limiting plate is provided on the top of the clamping plate. A third threaded rod is rotatably connected to the surface of the lower mold with an opening via a rotating shaft. The third threaded rod passes through the clamping plate and is threadedly connected to the clamping plate. The third threaded rod passes through the limiting plate and is rotatably connected to the limiting plate. Two longitudinal limiting rods are fixedly connected to the top of the lower mold with an opening. The limiting rods are fixedly connected to the limiting plate. The limiting rods pass through the clamping plate and are slidably connected to the clamping plate. A third motor is fixedly installed on the top of the limiting plate. The output shaft of the third motor is fixedly connected to the third threaded rod.
[0006] Preferably, the inner wall of the fixing plate is fixedly connected to two symmetrical sliding rods, which pass through the limiting seat and are slidably connected to the limiting seat.
[0007] Preferably, the inner wall of the slide groove is fixedly connected to two symmetrical slide rods, which pass through the limiting slider and are slidably connected to the limiting slider.
[0008] Preferably, the bottom of the clamping plate is fixedly connected to three equally spaced pressing blocks, which are circular blocks.
[0009] Preferably, the fixing plate is a U-shaped right-angle plate.
[0010] The beneficial effects of this utility model are:
[0011] 1. This utility model places the mudguard at a suitable position on the top of the lower die for opening, and drives the output shaft of motor three to rotate the threaded rod three, which in turn moves the clamping plate downward. Motor one drives the threaded rod one to rotate, which in turn moves the sliding groove to a suitable position through the limiting seat. Motor two drives the threaded rod two to rotate, which in turn moves the limiting slider, which in turn moves the mudguard to a suitable position. Then, the opening machine makes a hole in the mudguard. This achieves the purpose of clamping and positioning the mudguard when making a hole, thereby improving the stability of the mudguard during the opening process.
[0012] 2. By setting up the lower pressure block, when the motor is started, the output shaft of the motor drives the threaded rod to rotate, and the threaded rod drives the clamping plate to move downward through the limit rod. In turn, the clamping plate drives the lower pressure block to move downward, so that the lower pressure block presses down and clamps the mudguard, thereby further improving the stability of clamping the mudguard. Attached Figure Description
[0013] in:
[0014] Figure 1 This is a perspective view of one embodiment of the present utility model;
[0015] Figure 2 This is a left-side view of one embodiment of the present invention;
[0016] Figure 3 This is a three-dimensional disassembled schematic diagram of one embodiment of the present utility model;
[0017] Figure 4 This is one embodiment of the present utility model. Figure 3 A magnified view of point A in the middle.
[0018] The attached diagram lists the components represented by each number as follows:
[0019] 1. Hole punching machine, 2. Fixed plate, 3. Threaded rod one, 4. Motor one, 5. Limit seat, 6. Slide groove, 7. Limit slider, 8. Threaded rod two, 9. Motor two, 10. Hole punching lower mold, 11. Clamping plate, 12. Limit plate, 13. Threaded rod three, 14. Limit rod, 15. Motor three, 16. Slide rod one, 17. Slide rod two, 18. Lower pressure block. Detailed Implementation
[0020] In the following description, embodiments of the positioning fixture for opening holes in automobile mudguards according to the present invention will be described with reference to the accompanying drawings.
[0021] Figure 1-4This invention illustrates a positioning fixture for opening holes in automotive mudguards, comprising a fixed plate 2 fixedly mounted on the surface of an opening machine 1; a threaded rod 3 rotatably connected to the inner wall of the fixed plate 2; the fixed plate 2 is a U-shaped right-angle plate; two symmetrical sliding rods 16 are fixedly connected to the inner wall of the fixed plate 2, the sliding rods 16 penetrate through and are slidably connected to a limiting seat 5; the threaded rod 3 penetrates through the fixed plate 2; a motor 4 is fixedly mounted on the surface of the fixed plate 2, the output shaft of the motor 4 is fixedly connected to the threaded rod 3; a limiting seat 5 is provided in the inner cavity of the fixed plate 2, and the threaded rod 3 penetrates through the limiting seat 5. The seat 5 is threadedly connected to the limiting seat 5. A slide groove 6 is fixedly connected to the top of the limiting seat 5. Two symmetrical slide rods 17 are fixedly connected to the inner wall of the slide groove 6. The slide rods 17 pass through the limiting slider 7 and are slidably connected to it. The inner cavity of the slide groove 6 is equipped with the limiting slider 7. A threaded rod 8 is rotatably connected to the inner wall of the slide groove 6. The threaded rod 8 passes through the slide groove 6 and the limiting slider 7, and is threadedly connected to it. A motor 9 is fixedly mounted on the surface of the slide groove 6. The output shaft of the motor 9 is fixedly connected to the threaded rod 8. The top of the limiting slider 7 is fixed by welding. A lower mold 10 with an opening is fixedly connected. A clamping plate 11 is provided on the top of the lower mold 10. Three equally spaced pressing blocks 18 are fixedly connected to the bottom of the clamping plate 11. When the motor 15 is started, its output shaft drives the threaded rod 13 to rotate. The threaded rod 13, limited by the limiting rod 14, causes the clamping plate 11 to move downwards, which in turn causes the clamping plate 11 to move the pressing blocks 18 downwards, thus pressing and clamping the mudguard with the pressing blocks 18. This further improves the stability of clamping the mudguard. The pressing blocks 18 are circular blocks. A limiting plate 12 is provided at the top of the mold 10 with opening. A threaded rod 13 is rotatably connected to the surface of the mold 10 with opening via a rotating shaft. The threaded rod 13 passes through the clamping plate 11 and is threadedly connected to the clamping plate 11. The threaded rod 13 passes through the limiting plate 12 and is rotatably connected to the limiting plate 12. Two longitudinal limiting rods 14 are fixedly connected to the top of the mold 10 with opening. The limiting rods 14 are fixedly connected to the limiting plate 12. The limiting rods 14 pass through the clamping plate 11 and are slidably connected to the clamping plate 11. A motor 15 is fixedly installed on the top of the limiting plate 12. The output shaft of the motor 15 is fixedly connected to the threaded rod 13.
[0022] Working Principle: When using this invention, the user places the mudguard at a suitable position on the top of the lower mold 10 with the opening. Then, the user starts motor 3 (15), causing its output shaft to rotate the threaded rod 3 (13). This causes the threaded rod 3 (13) to move the clamping plate 11 downwards via the limiting rod 14, thus clamping the mudguard. Next, the user starts motor 4, causing it to rotate the threaded rod 3 (13). This causes the threaded rod 3 (13) to move the limiting seat 5 via the limiting rod 16, thus moving the limiting seat 5 to the appropriate position. Finally, the user starts motor 2 (9), causing its output shaft to rotate the threaded rod 2 (8). This causes the threaded rod 2 (8) to move via the limiting rod 2 (17). The slider 7 moves, thereby causing the limiting slider 7 to move the mudguard to a suitable position through the lower die 10. At this time, the drilling machine 1 is started, and the drilling machine 1 drills holes in the mudguard through the lower die 10. This achieves the purpose of clamping and positioning the mudguard when drilling holes, thereby improving the stability of the mudguard during drilling. Through the setting of the lower pressure block 18, when the motor 3 15 is started, the output shaft of the motor 3 15 drives the threaded rod 3 13 to rotate. The threaded rod 3 13 drives the clamping plate 11 to move downward through the limiting rod 14. This causes the clamping plate 11 to drive the lower pressure block 18 to move downward, so that the lower pressure block 18 presses down and clamps the mudguard, thereby further improving the stability of clamping the mudguard.
[0023] In summary, this positioning fixture for drilling holes in automobile mudguards achieves its purpose by placing the mudguard at a suitable position on the top of the lower die 10, causing the output shaft of motor 3 15 to drive the threaded rod 3 13 to rotate, which in turn causes the clamping plate 11 to move downwards. Motor 1 4 then drives the threaded rod 3 to rotate, which in turn causes the threaded rod 3 to move the slide 6 to a suitable position via the limit seat 5. Motor 2 9 then drives the threaded rod 8 to rotate, which in turn causes the limit slider 7 to move, thereby moving the mudguard to a suitable position. Finally, the drilling machine 1 drills a hole in the mudguard. This achieves the goal of clamping and positioning the mudguard during drilling, thus improving its stability.
Claims
1. A positioning fixture for opening holes in automobile mudguards, characterized in that, The device includes a fixed plate (2) fixedly mounted on the surface of a hole punching machine (1): a threaded rod (3) is rotatably connected to the inner wall of the fixed plate (2), the threaded rod (3) penetrates the fixed plate (2), a motor (4) is fixedly mounted on the surface of the fixed plate (2), the output shaft of the motor (4) is fixedly connected to the threaded rod (3), a limiting seat (5) is provided in the inner cavity of the fixed plate (2), the threaded rod (3) penetrates the limiting seat (5) and is connected to the limiting seat (5). 5) Threaded connection: A slide groove (6) is fixedly connected to the top of the limiting seat (5). A limiting slider (7) is provided in the inner cavity of the slide groove (6). A threaded rod (8) is rotatably connected to the inner wall of the slide groove (6). The threaded rod (8) passes through the slide groove (6) and passes through the limiting slider (7) and is threadedly connected to the limiting slider (7). A motor (9) is fixedly installed on the surface of the slide groove (6). The output shaft of the motor (9) is connected to the threaded rod (8). The second threaded rod (8) is fixedly connected. The top of the limiting slider (7) is fixedly connected to the lower mold with opening by welding. The top of the lower mold with opening is provided with a clamping plate (11). The top of the clamping plate (11) is provided with a limiting plate (12). The surface of the lower mold with opening is rotatably connected to the third threaded rod (13) through a rotating shaft. The third threaded rod (13) passes through the clamping plate (11) and is threadedly connected to the clamping plate (11). The limiting plate (12) is rotatably connected to the limiting plate (12). The top of the lower mold (10) with opening is fixedly connected to two longitudinal limiting rods (14). The limiting rods (14) are fixedly connected to the limiting plate (12). The limiting rods (14) pass through the clamping plate (11) and are slidably connected to the clamping plate (11). The top of the limiting plate (12) is fixedly installed with a motor three (15). The output shaft of the motor three (15) is fixedly connected to the threaded rod three (13).
2. The positioning jig for the opening of a fender of an automobile according to claim 1, wherein The inner wall of the fixed plate (2) is fixedly connected to two symmetrical sliding rods (16), which pass through the limiting seat (5) and are slidably connected to the limiting seat (5).
3. The positioning jig for the opening of a fender of an automobile according to claim 2, wherein The inner wall of the groove (6) is fixedly connected to two symmetrical sliding rods (17), which pass through the limiting slider (7) and are slidably connected to the limiting slider (7).
4. The positioning jig for the opening of a fender of an automobile according to claim 3, wherein The bottom of the clamp (11) is fixedly connected to three equally spaced pressing blocks (18), which are circular blocks.
5. The positioning jig for the opening of a fender of an automobile according to claim 4, wherein The fixing plate (2) is a U-shaped right-angle plate.