A punch fixture for a car trunk support

Abstract

This utility model relates to a punching fixture for a car trunk bracket, including a base and a mounting base. The top of the base is provided with a first support and a second support. The first support supports the vehicle body end of the trunk bracket, and the second support supports the trunk cover end of the trunk bracket. The bottom of the mounting base is provided with a positioning mechanism and a punching mechanism. The bottom of the positioning mechanism is elastically connected to a first clamping plate, which clamps the vehicle body end of the trunk bracket. The bottom of the punching mechanism is provided with a punching cutter, which mates with the punching point on the trunk cover end of the trunk bracket. This utility model, by using an elastically connected first clamping plate to first clamp and position the vehicle body end of the trunk bracket, and then punching the trunk cover end of the trunk bracket with the punching cutter, ensures the stability of the trunk bracket during the punching process, guarantees the accuracy of the punching, and reduces punching errors.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive parts processing, specifically to a punching fixture for an automotive trunk bracket. Background Technology

[0002] like Figure 1 As shown, the car's trunk support includes a lid end, a connecting part, and a body end. The lid end has a connecting hole for bolting the trunk lid. The body end has a pivot seat and a cylinder top seat. The trunk support is rotatably connected to the body via the pivot seat and pivot, and connected to a hydraulic cylinder via the cylinder top seat. The extension and retraction of the hydraulic cylinder causes the trunk support to rotate around the pivot, thus opening or closing the trunk lid. The connecting part connects the lid end and the body end, and to accommodate the shape of the trunk, the connecting part has a complex curved shape.

[0003] During the processing of the trunk bracket, it is necessary to punch holes in the connecting holes on the end of the trunk lid. At this time, the trunk bracket needs to be positioned. However, due to the complex irregular structure of the trunk bracket, it is difficult to position the trunk bracket using existing fixtures. Utility Model Content

[0004] Based on the above description, this utility model provides a punching fixture for a car trunk bracket. By setting a first clamping plate with elastic connection, the vehicle body end of the trunk bracket is first clamped and positioned, and then the trunk cover end of the trunk bracket is punched by a punching cutter. This can ensure the stability of the trunk bracket during the punching process, ensure the accuracy of the punching, and reduce the punching error.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a punching fixture for a car trunk bracket, including a base and a mounting base; The base is provided with a first support seat and a second support seat on its top; the first support seat is used to support the vehicle body end of the trunk bracket, and the second support seat is used to support the trunk lid end of the trunk bracket. The mounting base is provided with a positioning mechanism and a punching mechanism at its bottom; the bottom of the positioning mechanism is provided with a first pressing plate through an elastic connection, the first pressing plate being used to press the vehicle body end of the trunk bracket; the bottom of the punching mechanism is provided with a punching cutter, the punching cutter being matched with the punching position at the trunk cover end of the trunk bracket.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the bottom surface of the first pressing plate is in close contact with the top surface of the first support base, the top surface of the first support base is provided with a lower groove, and the bottom of the first pressing plate is provided with an upper groove. Both the lower groove and the upper groove are matched with the vehicle body end of the trunk bracket.

[0008] Furthermore, the positioning mechanism also includes at least two parallel first guide rods, and the first clamping plate is slidably sleeved on the first guide rods; the top of the first support base is provided with a first guide groove that matches the first guide rod.

[0009] Furthermore, the positioning mechanism also includes a clamping rod, and a clamping hole is provided through the first clamping plate, with the bottom of the clamping rod slidably disposed in the clamping hole.

[0010] Furthermore, the bottom diameter of the clamping rod is increased, thereby forming an outer stop on the outer side wall of the bottom of the clamping rod, and an inner stop matching the outer stop is provided on the inner wall of the clamping hole.

[0011] Furthermore, a second pressing plate is elastically connected to the bottom of the punching mechanism, and a pressing block is provided at the bottom of the second pressing plate. The pressing block is used to press the punching hole at the end of the trunk bracket. The punch hole passes through the second pressing plate and the pressing block, and the bottom of the punching cutter is slidably disposed in the punch hole.

[0012] Furthermore, a support block is provided on the top of the second support base, and the top of the support block is in close contact with the second pressing plate.

[0013] Furthermore, the punching mechanism also includes at least two parallel second guide rods, and the second clamping plate is slidably sleeved on the second guide rods; the top of the second support base is provided with a second guide groove that matches the second guide rod.

[0014] Furthermore, the punching mechanism also includes a limiting plate, which is disposed on one side of the second pressing plate. The bottom of the limiting plate is provided with a locking block extending to one side, which matches the bottom of the second pressing plate.

[0015] Furthermore, the top of the first support is higher than the second support.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial technical effects: 1. This utility model, by setting a first clamping plate with elastic connection, first clamps and positions the vehicle body end of the trunk bracket, and then punches holes in the trunk cover end of the trunk bracket with a punching knife. This can ensure the stability of the trunk bracket during the punching process, ensure the accuracy of the punching, and reduce the punching error. 2. By setting a second clamping plate with elastic connection, the trunk bracket's cover end to be punched is clamped before punching, further ensuring the stability of the trunk bracket during the punching process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the trunk support structure; Figure 2 A schematic diagram of the structure of a punching fixture for a car trunk bracket provided in an embodiment of this utility model; Figure 3 This is a schematic diagram of the base structure in an embodiment of the present utility model; Figure 4 This is a schematic diagram of the structure of the trunk bracket placed on top of the base in an embodiment of this utility model; Figure 5 This is a schematic diagram of the mounting base in an embodiment of the present utility model; Figure 6 This is a schematic diagram of the structure of the mounting base concealing the first and second clamping plates in an embodiment of this utility model; Figure 7 This is a cross-sectional view of the positioning mechanism in an embodiment of this utility model; The attached diagram lists the components represented by each number as follows: 1. Base; 2. First support seat; 21. Lower groove; 22. First guide groove; 3. Second support seat; 31. Positioning block; 32. Support block; 33. Second guide groove; 4. Mounting seat; 5. Positioning mechanism; 51. Positioning seat; 511. First guide rod; 512. First nitrogen spring; 513. Pressing rod; 514. Outer stop; 52. First pressing plate; 521. Upper groove; 522. Pressing hole; 523. Inner... 6. Stop; 6. Punching mechanism; 61. Punch holder; 611. Second guide rod; 612. Second nitrogen spring; 613. Punching cutter; 62. Second clamping plate; 621. Pressure block; 622. Punch hole; 63. Limiting plate; 631. Locking block; 7. Trunk bracket; 71. Trunk cover end; 711. Punching area; 712. Connecting hole; 72. Connecting part; 73. Vehicle body end; 731. Rotary shaft seat; 732. Hydraulic cylinder top seat. Detailed Implementation

[0018] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0020] It is understood that spatial relation terms such as “below,” “under,” “below,” “below,” “above,” “above,” etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as “below,” “below,” or “below” will be oriented “above” the other element or feature. Therefore, the exemplary terms “below” and “under” can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0021] A punching fixture for a car trunk bracket, used for... Figure 1 The trunk lid end 71 of the trunk bracket 7 shown is punched. For example... Figure 1 As shown, the trunk support 7 includes a trunk lid end 71, a connecting part 72, and a vehicle body end 73. The connecting part 72 connects the trunk lid end 71 and the vehicle body end 73, and in order to adapt to the shape of the trunk, the connecting part 72 presents a complex curved shape.

[0022] Two recessed punching holes 711 are sequentially provided on the trunk lid end 71. In this embodiment, the fixture punches two connecting holes 712 through the two punching holes 711. The trunk lid is connected to the two connecting holes 712 by bolts. A pivot seat 731 and a cylinder top seat 732 are provided on the vehicle body end 73. The trunk support 7 is rotatably connected to the vehicle body through the pivot seat 731 and the pivot shaft, and is connected to the cylinder through the cylinder top seat 732. Thus, by extending and retracting the cylinder, the trunk support 7 rotates around the pivot shaft, thereby opening or closing the trunk lid.

[0023] like Figure 2 As shown, the fixture in this embodiment includes a base 1 and a mounting base 4.

[0024] like Figure 3 and Figure 4 As shown, a first support 2 and a second support 3 are provided on the top of the base 1. The first support 2 is used to support the vehicle body end 73 of the trunk support 7, and the second support 3 is used to support the trunk lid end 71 of the trunk support 7. In this embodiment, since the vehicle body end 73 of the trunk support 7 is higher than the trunk lid end 71, the first support 2 is higher than the second support 3.

[0025] like Figure 5 and Figure 6 As shown, the bottom of the mounting base 4 is provided with a positioning mechanism 5 and a punching mechanism 6. The positioning mechanism 5 is matched with the first support base 2 and is used to press and position the vehicle body end 73 of the trunk bracket 7. The punching mechanism 6 is matched with the second support base 3 and is used to punch holes at two points 711 to be punched at the trunk cover end 71 of the trunk bracket 7, thereby forming two connecting holes 712.

[0026] Specifically, the positioning mechanism 5 includes a positioning seat 51 and a first pressing plate 52. The positioning seat 51 is fixed to the bottom of the mounting base 4. Four first nitrogen springs 512 are provided at the bottom of the positioning seat 51. The first pressing plate 52 is connected to the bottom of the four first nitrogen springs 512, so that the first pressing plate 52 is elastically connected and positioned below the positioning seat 51. The bottom of the positioning seat 51 is also provided with four parallel first guide rods 511. All four first guide rods 511 are vertically arranged, and the four corners of the first pressing plate 52 are slidably sleeved on the four first guide rods 511. The top of the first support base 2 is provided with a first guide groove 22 that matches the first guide rods 511.

[0027] In this embodiment, the bottom surface of the first pressing plate 52 is in close contact with the top surface of the first support base 2. The top surface of the first support base 2 is provided with a lower groove 21, and the bottom of the first pressing plate 52 is provided with an upper groove 521. Both the lower groove 21 and the upper groove 521 are matched with the vehicle body end 73 of the trunk bracket 7.

[0028] Two clamping rods 513 are also provided at the bottom of the positioning seat 51. A clamping hole 522 is provided through the first clamping plate 52, and the bottom of the clamping rod 513 is slidably disposed in the clamping hole 522. The bottom diameter of the clamping rod 513 is increased, thereby forming an outer stop 514 on the outer side wall of the bottom of the clamping rod 513. An inner stop 523 that matches the outer stop 514 is provided on the inner wall of the clamping hole 522. The cooperation of the inner stop 523 and the outer stop 514 limits the downward movement of the first clamping plate 52 relative to the positioning seat 51, suspending the first clamping plate 52 below the positioning seat 51. In addition, one clamping rod 513 is used to clamp the blank surface above the rotating shaft seat 731, and the other clamping rod 513 is used to clamp the blank surface above the cylinder top seat 732.

[0029] The punching mechanism 6 includes a punch holder 61 and a second clamping plate 62. The punch holder 61 is fixed to the bottom of the mounting base 4. Five second nitrogen springs 612 are provided at the bottom of the punch holder 61. The second clamping plate 62 is connected to the bottom of the five second nitrogen springs 612, so that the second clamping plate 62 is elastically connected and positioned below the punch holder 61. The bottom of the punch holder 61 is also provided with four parallel second guide rods 611. All four second guide rods 611 are vertically arranged, and the four corners of the second clamping plate 62 are slidably sleeved on the four second guide rods 611. The top of the second support base 3 is provided with a second guide groove 33 that matches the second guide rods 611.

[0030] The top of the second support base 3 is provided with two positioning blocks 31 and three support blocks 32. The two positioning blocks 31 are used to position the two sides of the trunk lid end 71 of the trunk bracket 7. The top of the support blocks 32 is in close contact with the second pressing plate 62, so that a gap is formed between the second pressing plate 62 and the second support base 3.

[0031] The bottom of the second clamping plate 62 is provided with two clamping blocks 621, which are used to clamp the two punched holes 711 on the trunk lid end 71 of the trunk bracket 7. Two punch holes 622 pass through the second clamping plate 62 and pass through the two clamping blocks 621 respectively. The bottom of the punch holder 61 is provided with two punching cutters 613, and the bottom of the two punching cutters 613 is slidably set in the punching holes 622. The two punching cutters 613 are used to punch two connecting holes 712 on the two punched holes 711 respectively.

[0032] Limiting plates 63 are provided on opposite sides of the punch holder 61. A locking block 631 extending to one side is provided at the bottom of the limiting plate 63. The locking block 631 matches the bottom of the second pressing plate 62 and limits the downward movement of the second pressing plate 62 relative to the punch holder 61, thereby suspending the second pressing plate 62 below the punch holder 61.

[0033] When the punching fixture of this embodiment punches holes in the trunk bracket 7, the body end 73 of the trunk bracket 7 is first placed on the first support seat 2, and the lid end 71 of the trunk bracket 7 is placed on the second support seat 3. Then, the mounting seat 4 is moved downward so that the first clamping plate 52 presses and positions the body end 73 of the trunk bracket 7 on the first support seat 2, while the two clamping blocks 621 press the two punching points 711 of the lid end 71 of the trunk bracket 7 respectively. The mounting seat 4 is then moved downward so that the bottom of the two clamping rods 513 extends to the bottom of the two clamping holes 522 and presses the rotating shaft seat 731 and the cylinder top seat 732 respectively. The bottom of the two punching cutters 613 extends out of the punching hole 622 and punches the two punching points 711 of the trunk bracket to form two connecting holes 712.

[0034] This utility model, by setting up a first clamping plate 52 and a second clamping plate 62 with elastic connection, first clamps and positions the two punching points 711 of the vehicle body end 73 and the trunk lid end 71 of the trunk bracket 7, and then punches holes in the trunk lid end 71 of the trunk bracket 7 by using a punching cutter 613. This can ensure the stability of the trunk bracket 7 during the punching process, ensure the accuracy of the punching, and reduce the punching error.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A punch fixture for a trunk support of an automobile, characterized by, Includes base and mounting bracket; The base is provided with a first support seat and a second support seat on its top; the first support seat is used to support the vehicle body end of the trunk bracket, and the second support seat is used to support the trunk lid end of the trunk bracket. The mounting base is provided with a positioning mechanism and a punching mechanism at its bottom; the bottom of the positioning mechanism is provided with a first pressing plate through an elastic connection, the first pressing plate being used to press the vehicle body end of the trunk bracket; the bottom of the punching mechanism is provided with a punching cutter, the punching cutter being matched with the punching position at the trunk cover end of the trunk bracket.

2. A punch jig for a trunk support of an automobile according to claim 1, wherein The bottom surface of the first pressing plate is in close contact with the top surface of the first support base. A lower groove is provided on the top surface of the first support base, and an upper groove is provided on the bottom of the first pressing plate. Both the lower groove and the upper groove are matched with the vehicle body end of the trunk bracket.

3. The punch jig for a trunk support of an automobile according to claim 1, wherein The positioning mechanism further includes at least two parallel first guide rods, and the first pressing plate is slidably sleeved on the first guide rods; the top of the first support base is provided with a first guide groove that matches the first guide rod.

4. The punching fixture for a car trunk bracket according to claim 1, characterized in that, The positioning mechanism also includes a clamping rod, and a clamping hole is provided through the first clamping plate, with the bottom of the clamping rod slidably disposed in the clamping hole.

5. A punch jig for a trunk support of an automobile according to claim 4, wherein The bottom diameter of the clamping rod is increased, thereby forming an outer stop on the outer side wall of the bottom of the clamping rod, and an inner stop matching the outer stop is provided on the inner wall of the clamping hole.

6. The punch jig for a trunk support of an automobile according to claim 1, wherein The bottom of the punching mechanism is provided with a second pressing plate via an elastic connection. The bottom of the second pressing plate is provided with a pressing block, which is used to press the punching hole at the end of the trunk bracket. The punch hole passes through the second pressing plate and the pressing block, and the bottom of the punching cutter is slidably disposed in the punch hole.

7. A punch jig for a trunk support of an automobile according to claim 6, wherein The top of the second support base is provided with a support block, and the top of the support block is in close contact with the second pressing plate.

8. The punch jig for a trunk support of an automobile according to claim 6, wherein The punching mechanism further includes at least two parallel second guide rods, and the second clamping plate is slidably sleeved on the second guide rods; the top of the second support base is provided with a second guide groove that matches the second guide rod.

9. The punch jig for a trunk support of an automobile according to claim 6, wherein The punching mechanism also includes a limiting plate, which is disposed on one side of the second pressing plate. The bottom of the limiting plate is provided with a locking block that extends to one side and matches the bottom of the second pressing plate.

10. The punch jig for a trunk support of an automobile according to claim 1, wherein The top of the first support is higher than the second support.

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