Anti-deformation clamp for punching automobile rear end cover
By designing an anti-deformation fixture, using limiters and locking clamps to fix the rear cover of the car, and adjusting the position of the top holding component through a moving module, the problem of deformation and movement of the rear cover of the car during the punching process was solved, achieving high-precision punching and fixture protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TONGJI AUTO PARTS (NANTONG) CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-05-29
AI Technical Summary
The rear cover of a car is prone to deformation and movement during the punching process, resulting in low punching accuracy and damage to the fixture. Existing fixtures do not provide good fixation.
An anti-deformation fixture was designed, comprising a base plate, a back plate, a bracket, a limiter, a pushing mechanism, a locking clamp, and a moving module. The limiter and locking clamp are used to fix the rear cover of the car, and the moving module is used to drive the top holding component to adjust its position, providing support for the lower surface and ensuring stability during the punching process.
It effectively prevents the rear cover of the car from deforming during the punching process, ensures the punching quality and the stability of the fixture, avoids damage, and improves the punching accuracy.
Smart Images
Figure CN224294519U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive processing equipment technology, specifically to an anti-deformation fixture for punching holes in automotive rear end covers. Background Technology
[0002] The rear end cover of a car primarily serves to protect the vehicle body and provide structural support, while also meeting personalized and environmentally friendly requirements. For example, using lightweight materials (such as aluminum alloy) and a recyclable design, it is installed at the rear of the car. Components such as vehicle radar need to be installed on it to ensure vehicle safety, requiring punching processing for the radar mounting holes.
[0003] Due to the material properties of automotive rear end covers, their load-bearing capacity is limited, making them susceptible to damage during rapid punching. Furthermore, the structural characteristics of the rear end cover result in poor clamping and securing during punching, leading to movement and low punching accuracy. Therefore, we propose an anti-deformation fixture for punching automotive rear end covers. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides an anti-deformation clamp for punching holes in automotive rear cover, thus solving the problems mentioned in the background section.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an anti-deformation clamp for punching holes in a car rear cover, comprising: a base plate; a back plate fixedly disposed on one side of the top of the base plate, a bracket fixedly disposed on the front of the back plate, a car rear cover mounted on the bracket, a limiter fixed to the outer wall of the back plate at the top of the bracket, a pushing mechanism disposed on both sides of the top of the base plate, a locking clamp disposed on one side of the top of the pushing mechanism, the locking clamp and the limiter being used at least for fixing and clamping the car rear cover on the bracket, the pushing mechanism being used at least for driving the locking clamp to open and close, a moving module disposed at the lower interior of the bracket, a top holding component disposed on the moving module located below the car rear cover, the moving module driving the top holding component to change position, the top holding component being used for supporting the lower surface of the car rear cover.
[0006] Preferably, a punching mechanism is connected above the back plate via a moving module, and the punching mechanism is used for punching holes in the rear cover of the vehicle.
[0007] Preferably, the bracket has a C-shaped structure, and the top two ends of the bracket are provided with arc-shaped blocks, the shape of which is adapted to the inner surface shape of the rear cover of the car.
[0008] Preferably, the limiter includes a liner fixed to the outer wall of the back plate, and a limit strip is provided on the outer wall of the liner.
[0009] Preferably, the locking clamp includes a support arm fixed to the top outer wall of the base plate, and a guide rod is slidably provided at the top end of the support arm. A stop plate is fixedly connected to one end of the guide rod, and a locking strip is provided on one side outer wall of the stop plate. A spring is sleeved on the outside of the guide rod.
[0010] Preferably, the pushing mechanism includes a cylinder fixed to the outer wall of one side of the support arm, and a wedge block one is installed on the top of the cylinder. A wedge block two is fixedly connected to one end of the guide rod, and the wedge block two is located above the wedge block one.
[0011] Preferably, the moving module includes a guide rail disposed on the inner wall of the bottom of the bracket, and a sliding platform is disposed on the guide rail. A transverse moving member for moving the sliding platform is disposed in the middle of the bracket. Bearing seats are disposed on both sides of the top of the sliding platform, and longitudinal moving members are mounted on the bearing seats. A sliding seat is mounted on the longitudinal moving member.
[0012] Preferably, the top support assembly includes a lifter, and a lifting rod is inserted into the top of the lifter. A base is fixedly connected to the top of the lifting rod, and the base has a through hole.
[0013] This utility model provides an anti-deformation clamp for punching holes in automotive rear cover, which has the following beneficial effects:
[0014] 1. The bracket used enables the installation of the rear end cover of the car on it, and the limiter and locking clamp are used to fix the rear end cover of the car on the bracket;
[0015] 2. The moving module can drive the top support component to move, changing its position under the rear cover of the car. This allows the top support component to support the rear cover when punching holes at different locations on the rear cover, ensuring that the rear cover will not easily deform during punching, thus guaranteeing the quality of the punching and preventing damage to the rear cover. Attached Figure Description
[0016] Figure 1 This is a structural schematic diagram of an anti-deformation fixture for punching holes in a car rear cover according to the present invention;
[0017] Figure 2 This utility model provides a schematic diagram of the punching mechanism for a deformation-resistant clamp used for punching a rear end cover of an automobile and the state structure of the rear end cover.
[0018] Figure 3 This is a schematic diagram of the top holding assembly structure of an anti-deformation clamp for punching a rear cover of an automobile according to the present invention.
[0019] Figure 4This is a schematic diagram of the bracket and limiter structure of an anti-deformation clamp for punching a rear cover of an automobile according to the present invention.
[0020] Figure 5 This is a perspective view of the locking fixture structure of an anti-deformation clamp for punching a rear cover of an automobile according to the present invention.
[0021] Figure 6 This is a front view of the locking fixture structure of an anti-deformation clamp for punching holes in a car rear cover according to this utility model.
[0022] 1. Base plate; 2. Back plate; 3. Punching mechanism; 4. Bracket; 41. Arc block; 5. Limiter; 51. Liner plate; 52. Limiting strip; 6. Locking clamp; 61. Stop plate; 62. Locking strip; 63. Support arm; 64. Guide rod; 65. Spring; 7. Pushing mechanism; 71. Cylinder; 72. Wedge block one; 73. Wedge block two; 8. Moving module; 81. Lateral moving component; 82. Sliding stage; 83. Guide rail; 84. Bearing seat; 85. Longitudinal moving component; 86. Sliding seat; 9. Top holding assembly; 91. Lifter; 92. Lifting rod; 93. Base support; 94. Through hole. Detailed Implementation
[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0024] like Figures 1-6 As shown, the present invention provides a technical solution: an anti-deformation clamp for punching a car rear cover, comprising: a base plate 1; a back plate 2 is fixedly disposed on one side of the top of the base plate 1, a bracket 4 is fixedly disposed on the front of the back plate 2, the car rear cover is mounted on the bracket 4, a limiter 5 is fixed on the outer wall of the back plate 2 at the top of the bracket 4, a pushing mechanism 7 is disposed on both sides of the top of the base plate 1, a locking clamp 6 is disposed on one side of the top of the pushing mechanism 7, the locking clamp 6 and the limiter 5 are used at least for fixing and clamping the car rear cover on the bracket 4, the pushing mechanism 7 is used at least for driving the locking clamp 6 to open and close, a moving module 8 is disposed at the lower inside of the bracket 4, a top holding component 9 is disposed on the moving module 8 located below the car rear cover, the moving module 8 drives the top holding component 9 to change position, and the top holding component 9 is used to support the lower surface of the car rear cover.
[0025] In this embodiment, the system includes: a base plate 1, which is made of metal plate and has a support leg structure underneath to ensure the installation stability of the base plate 1; a back plate 2 is fixedly installed on one side of the top of the base plate 1, and the back plate 2 is vertically installed above the base plate 1. A punching mechanism 3 is connected above the back plate 2 through a moving module. The punching mechanism 3 is used for punching the rear cover of the car. The moving module here moves along the X, Y and Z axes to adjust the position of the punch. The structure of the moving module is also commonly used in existing machine tools, so it will not be described in detail.
[0026] In this embodiment, a bracket 4 is fixedly provided on the front of the back plate 2, and the car rear cover is installed on the bracket 4. The bracket 4 has a C-shaped structure, and arc-shaped blocks 41 are provided at both ends of the top of the bracket 4. The shape of the arc-shaped blocks 41 is adapted to the inner surface shape of the car rear cover. Here, the processing of a car rear cover with arc-shaped sides and a straight middle is taken as an example. For car rear covers with different structures, brackets 4 with different structures can be designed accordingly. At the same time, other structures should also be designed accordingly.
[0027] In this embodiment, the top of the bracket 4 is provided with a limiter 5 fixed to the outer wall of the back plate 2. The limiter 5 includes a liner 51 fixed to the outer wall of the back plate 2, and a limit strip 52 is provided on the outer wall of the liner 51. With the help of the limit strip 52, after the rear cover of the car is fastened to the upper surface of the bracket 4 from top to bottom, one side of the rear cover of the car is inserted into the gap between the limit strip 52 and the bracket 4, thereby realizing the limitation of the rear cover of the car by one side of the back plate 2.
[0028] In this embodiment, a pushing mechanism 7 is provided on both sides of the top of the substrate 1. The pushing mechanism 7 is used to drive the locking clamp 6 to open and close. The pushing mechanism 7 includes a cylinder 71 fixed on the outer wall of one side of the support arm 63, and a wedge block 72 is installed on the top of the cylinder 71. A wedge block 73 is fixedly connected to one end of the guide rod 64. The wedge block 73 is located above the wedge block 72. After the rear cover of the car is installed on the bracket 4, the operator starts the pushing mechanism 7. Specifically, the cylinder 71 is started, so that the cylinder 71 rises and drives the wedge block 73 to rise. By using the cooperation between the wedge block 73 and the wedge block 72, the wedge block 72 moves horizontally. At this time, the wedge block 72 drives the guide rod 64 to move horizontally.
[0029] In this embodiment, a locking clamp 6 is provided on one side of the top of the pushing mechanism 7. The locking clamp 6 and the limiter 5 are used to fix the rear end cover of the car on the bracket 4. The locking clamp 6 includes a support arm 63 fixed on the top outer wall of the base plate 1, and a guide rod 64 is slidably provided on the top of the support arm 63. One end of the guide rod 64 is fixedly connected to a stop plate 61, and a locking strip 62 is provided on one side of the outer wall of the stop plate 61. A spring 65 is sleeved on the outside of the guide rod 64. After the pushing mechanism 7 is activated, the wedge block 72 drives the guide rod 64 to move above the support arm 63. The guide rod 64 drives the stop plate 61 and the locking strip 62 at the end to move towards the rear end cover of the car, thereby limiting the rear end cover of the car on one side of the support arm 63. This, together with the limiter 5, achieves the fixed installation of the rear end cover of the car on the bracket 4, ensuring the stability of the punching process of the rear end cover of the car.
[0030] In this embodiment, a moving module 8 is provided inside the lower part of the bracket 4. The moving module 8 drives the top holding component 9 to change position. The moving module 8 includes a guide rail 83 provided on the inner wall of the bottom of the bracket 4, and a sliding table 82 is provided on the guide rail 83. A transverse moving component 81 for moving the sliding table 82 is provided in the middle of the bracket 4. Bearing seats 84 are provided on both sides of the top of the sliding table 82, and a longitudinal moving component 85 is installed on the bearing seat 84. A sliding seat 86 is installed on the longitudinal moving component 85. It should be noted that the moving component is composed of a servo motor, a lead screw, and a lead screw nut, etc., to realize the adjustment of the position of the top holding component 9, and to realize the adjustment of the X and Y axis positions of the top holding component 9. Its adjustment position can be the same as the adjustment position of the punching mechanism 3, that is, it can also be a follow-up movement.
[0031] In this embodiment, the moving module 8 is equipped with a supporting component 9 located below the rear end cover of the vehicle. The supporting component 9 is used to support the lower surface of the rear end cover. The supporting component 9 includes a lifter 91, and a lifting rod 92 is inserted into the top of the lifter 91. A base support 93 is fixedly connected to the top of the lifting rod 92, and a through hole 94 is provided on the base support 93. After the position of the supporting component 9 is adjusted, that is, the center line of the punch of the punching mechanism 3 and the base support 93 are aligned, before the punching mechanism 3 falls, the lifter 91 drives the lifting rod 92 to rise, so that the base support 93 abuts against the lower surface of the rear end cover of the vehicle. When the punch punches the rear end cover of the vehicle, the base support 93 plays a stable supporting role, ensuring the safety of punching and the protection function of the rear end cover of the vehicle.
Claims
1. A deformation-resistant clamp for punching holes in a car rear cover, comprising: The substrate (1) is characterized in that: a back plate (2) is fixedly provided on one side of the top of the substrate (1), a bracket (4) is fixedly provided on the front of the back plate (2), the rear end cover of the car is installed above the bracket (4), a limiter (5) fixed on the outer wall of the back plate (2) is provided on the top of the bracket (4), a pushing mechanism (7) is provided on both sides of the top of the substrate (1), a locking clamp (6) is provided on one side of the top of the pushing mechanism (7), the locking clamp (6) and the limiter (5) are used at least to fix the rear end cover of the car on the bracket (4), the pushing mechanism (7) is used at least to drive the locking clamp (6) to open and close, a moving module (8) is provided in the lower part of the bracket (4), a top holding component (9) located below the rear end cover of the car is provided on the moving module (8), the moving module (8) drives the top holding component (9) to change position, and the top holding component (9) is used to support the lower surface of the rear end cover of the car.
2. The anti-deformation fixture for punching holes in an automotive rear cover according to claim 1, characterized in that: A punching mechanism (3) is connected above the back plate (2) via a moving module. The punching mechanism (3) is used for punching the rear cover of the car.
3. The anti-deformation fixture for punching holes in an automotive rear cover according to claim 1, characterized in that: The bracket (4) has a C-shaped structure, and the top two ends of the bracket (4) are provided with arc-shaped blocks (41), the shape of which is adapted to the inner surface shape of the rear cover of the car.
4. The anti-deformation fixture for punching holes in a car rear end cover according to claim 1, characterized in that: The limiter (5) includes a liner (51) fixed on the outer wall of the back plate (2), and a limit strip (52) is provided on the outer wall of the liner (51).
5. The anti-deformation fixture for punching holes in an automotive rear cover according to claim 1, characterized in that: The locking clamp (6) includes a support arm (63) fixed on the top outer wall of the base plate (1), and a guide rod (64) is slidably provided at the top of the support arm (63). A stop plate (61) is fixedly connected to one end of the guide rod (64), and a locking strip (62) is provided on one side outer wall of the stop plate (61). A spring (65) is sleeved on the outside of the guide rod (64).
6. The anti-deformation fixture for punching holes in an automotive rear cover according to claim 5, characterized in that: The pushing mechanism (7) includes a cylinder (71) fixed on the outer wall of one side of the support arm (63), and a wedge block one (72) is installed on the top of the cylinder (71). A wedge block two (73) is fixedly connected to one end of the guide rod (64), and the wedge block two (73) is located above the wedge block one (72).
7. The anti-deformation fixture for punching holes in an automotive rear cover according to claim 1, characterized in that: The moving module (8) includes a guide rail (83) disposed on the inner wall of the bottom of the bracket (4), and a sliding stage (82) is disposed on the guide rail (83). A transverse moving part (81) for moving the sliding stage (82) is disposed in the middle of the bracket (4). Bearing seats (84) are disposed on both sides of the top of the sliding stage (82), and a longitudinal moving part (85) is installed on the bearing seat (84). A sliding seat (86) is installed on the longitudinal moving part (85).
8. The anti-deformation fixture for punching holes in an automotive rear cover according to claim 1, characterized in that: The top support assembly (9) includes a lifter (91), and a lifting rod (92) is inserted into the top of the lifter (91). A base (93) is fixedly connected to the top of the lifting rod (92), and a through hole (94) is provided on the base (93).