A positioning fixture for punching holes in automotive trunk trim panels

Abstract

This utility model relates to the field of punching technology and discloses a positioning fixture for punching holes in automotive trunk trim panels. It includes a base plate, a punching machine located at the top and edge of the base plate, two first slide rails fixedly connected to the top and middle of the base plate, two second slide rails slidably connected to the top of the two first slide rails via a slide table, and a mounting bracket slidably connected to the top of the two second slide rails via the slide table. One outer wall of the mounting bracket is provided with a pressing component to prevent movement of the mounting bracket. This utility model achieves precise positioning of the required punching holes in the trim panel through the combined use of a laser pointer, a mold, and through holes. It also features a quick-release component for rapid disassembly and assembly of the mold, allowing for the replacement of molds of different shapes to accommodate trim panels of various shapes.

Description

Technical Field

[0001] This utility model relates to the field of punching technology, and more specifically to a positioning fixture for punching holes in automotive trunk trim panels. Background Technology

[0002] In the modern automotive manufacturing industry, the demand for trunk trim panels is growing as a component that combines aesthetics and practicality. However, in order to install various auxiliary facilities, mounting holes need to be made on them.

[0003] As disclosed in the patented punching positioning device with announcement number CN210188183U, the existing technology has the problem that during the punching process, positioning is mostly based on manual scribing or visual inspection, which results in low punching efficiency and cannot guarantee that the punching position of each workpiece is the same, affecting product quality. To address this, we propose a positioning fixture for punching automotive trunk trim panels to solve the above-mentioned problems. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a positioning fixture for punching holes in automotive trunk trim panels, so as to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a positioning fixture for punching holes in a car trunk trim panel, including a base plate, a stamping machine located at the top and edge of the base plate, two first slide rails fixedly connected to the top and middle of the base plate, two second slide rails slidably connected to the top of the two first slide rails via a slide table, and mounting brackets slidably connected to the top of the two second slide rails via a slide table. One outer wall of the mounting bracket is provided with a pressing component to prevent the mounting bracket from moving. The top of the mounting bracket is provided with a mold identical in shape to the trim panel, and the top of the mold has multiple through holes corresponding one-to-one with the punching holes in the trim panel. The outer walls of both sides of the mounting bracket are provided with quick-release components for fixing the mold. Two symmetrically arranged support frames are fixedly connected to the bottom inner wall of the stamping machine. A laser indicator is detachably connected to the bottom of the support frame via bolts, and the laser indicator points to the position where the stamping head of the stamping machine is punching.

[0006] As a further embodiment of this utility model, the extrusion assembly includes two fixed frames that are fixedly connected to the outer wall of one side of the mounting frame and symmetrically arranged away from the stamping machine. The top of the fixed frame is provided with a through threaded groove, and a lead screw is threadedly connected in the threaded groove. The bottom end of the lead screw is fixedly connected to a pressure block that can contact the base plate.

[0007] As a further embodiment of this utility model, the quick-release assembly includes slots formed on the outer walls of both sides of the mounting bracket, with fixing plates fixedly connected to both sides of the mold. A through slot is formed on one side of the fixing plate, and a magnetic rod that is slidably connected in the slot, inserts into the slot, and is attracted to the inner wall of the slot.

[0008] As a further embodiment of this utility model, the bottom of the mold and the four corners are fixedly connected with multiple positioning rods, and the top of the mounting frame is provided with positioning grooves that correspond one-to-one with the multiple positioning rods.

[0009] As a further embodiment of this utility model, the top of the mounting bracket is provided with a cavity for holding stamping waste.

[0010] As a further embodiment of this invention, the inner wall of the mounting bracket is provided with two baffles at the edge position.

[0011] As a further embodiment of this utility model, sliders are fixedly connected to both sides of the two baffles, and two sliding grooves are provided on the inner walls of both sides of the mounting bracket to cooperate with the sliders.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. This utility model achieves precise positioning of the positions where punching holes are required on decorative panels by using a laser pointer, a mold, and through holes in combination. This solves the problem that positioning is mostly done by manual marking or visual inspection, which is less efficient and less accurate.

[0014] 2. This utility model has a quick-release component for quick disassembly and assembly of the mold, which can be replaced with molds of different shapes to adapt to decorative panels of different shapes.

[0015] 3. This utility model achieves centralized collection of waste materials by using a cavity and baffle, thus avoiding environmental pollution caused by waste scattering. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This utility model Figure 1 A partially enlarged structural diagram.

[0018] Figure 3 This utility model Figure 2 A magnified structural diagram of part A.

[0019] Figure 4 This is a schematic diagram of the exploded structure of this utility model.

[0020] The attached figures are labeled as follows: 1. Press; 2. Base plate; 3. First slide rail; 4. Laser pointer; 5. Support frame; 6. Mold; 7. Through hole; 8. Slider; 9. Baffle; 10. Slide groove; 11. Mounting frame; 12. Fixing frame; 13. Lead screw; 14. Threaded groove; 15. Pressure block; 16. Fixing plate; 17. Groove; 18. Magnetic rod; 19. Slot; 20. Positioning rod; 21. Positioning groove; 22. Second slide rail. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. This utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Reference Figures 1-4This utility model provides a positioning fixture for punching holes in a car trunk trim panel, including a base plate 2. A punching machine 1 is located on the top and edge of the base plate 2. Two first slide rails 3 are fixed to the top and middle of the base plate 2 by bolts. Two second slide rails 22 are slidably connected to the top of the two first slide rails 3 via a slide table. A mounting bracket 11 is slidably connected to the top of the two second slide rails 22 via a slide table. A pressing assembly is provided on one outer wall of the mounting bracket 11 to prevent the mounting bracket 11 from moving. The pressing assembly includes two fixing brackets 12 that are fixed to the outer wall of one side of the mounting bracket 11 by bolts and symmetrically arranged away from the punching machine 1. A through threaded groove 14 is opened on the top of the fixing bracket 12. A lead screw 13 is threadedly connected to the threaded groove 14. The bottom end of the lead screw 13... A pressure block 15, which can contact the base plate 2, is fixed by bolts. By rotating the screw 13 counterclockwise, the screw 13 moves the pressure block 15 downward to contact the base plate 2 and form a pressing state. Thus, the mounting frame 11 is fixed by the friction between the base plate 2 and the pressure block 15, which avoids the mounting frame 11 from moving during punching and causing the punching position to shift. The top of the mounting frame 11 is provided with a mold 6 with the same shape as the decorative panel. The top of the mold 6 has multiple through holes 7 that correspond one-to-one with the punching holes of the decorative panel. The outer walls of both sides of the mounting frame 11 are provided with quick-release components for fixing the mold 6. The quick-release components include slots 19 opened on the outer walls of both sides of the mounting frame 11. The mold 6 is fixed to both sides by bolts with fixing plates 16. A through slot 17 is provided on one side of mold 6. A magnetic rod 18 is slidably connected in the slot 17, which is inserted into the slot 19 and attracted to the inner wall of the slot 19. By pulling the magnetic rod 18 along the slot 17, the magnetic rod 18 is disengaged from the slot 19, and mold 6 can be removed from the top of the mounting frame 11. Different shaped molds 6 can be used to process decorative panels of different shapes. Two symmetrically arranged support frames 5 are fixed to the bottom inner wall of the stamping machine 1 by bolts. A laser pointer 4 is detachably connected to the bottom of the support frame 5 by bolts. The position indicated by the laser pointer 4 is located at the stamping position of the stamping head of the stamping machine 1. The laser pointer 4 is a DQJ-05E laser pointer. The laser pointer 4 is activated, and then the extrusion assembly is rotated to make the mounting frame 1... 1. Disconnect from the fixed position, then move the mounting bracket 11 back and forth. The mounting bracket 11 slides along the two second slide rails 22, moving one of the through holes 7 on the mold 6 to be aligned with the position indicated by the laser pointer 4. Then, slide the mounting bracket 11 left and right. The two second slide rails 22 at the bottom of the mounting bracket 11 will slide along the two first slide rails 3, moving one of the through holes 7 on the mold 6 to the position indicated by the laser pointer 4. Since the decorative panel requires punching holes that correspond one-to-one with the through holes 7, positioning the through hole 7 is the position where the decorative panel needs to be punched. Then, rotate the extrusion assembly to re-fix the mounting bracket 11. Finally, place the decorative panel on the upper surface of the mold 6, thus achieving the positioning of the position where the decorative panel needs to be punched.This avoids the inefficiency of manual marking or visual estimation during positioning, which is often required for punching. It ensures that the punching positions on each decorative panel are identical, greatly increasing the overall variety of decorative panels.

[0023] In particular, in this utility model, multiple positioning rods 20 are welded to the bottom of the mold 6 at the four corners. The top of the mounting frame 11 is provided with positioning grooves 21 corresponding to the multiple positioning rods 20. By inserting the positioning rods 20 into the positioning grooves 21, the mold 6 can be quickly positioned, allowing the mold 6 to be accurately placed in the corresponding position on the mounting frame 11, greatly saving time. The top of the mounting frame 11 is provided with a cavity for holding stamping waste. The cavity can collect the waste that falls from the through hole 7. The inner wall of the mounting frame 11 is provided with two baffles 9 at the edge. The two sides of the two baffles 9 are fixed with sliders 8 by bolts. The inner walls of both sides of the mounting frame 11 are provided with two sliding grooves 10 that cooperate with the sliders 8. By pulling one of the baffles 9 upward, the slider 8 is disengaged from the sliding groove 10, which facilitates the cleaning of the waste in the cavity. The baffles 9 block the waste, preventing the waste from falling and causing the working position to become dirty and messy.

[0024] It should be noted that the stamping machine 1 is existing technology, consisting of a support, cylinder, and stamping head, etc. Those skilled in the art can set it according to actual needs, which will not be elaborated here.

[0025] In this application, an annular groove is provided axially on the inner wall of the threaded groove 14, and a nylon 66 damping ring with a Shore hardness of 85A is embedded in the groove. The continuous axial clamping force generated by its elastic deformation forms a helical angle interference fit with the surface of the lead screw 13 at 15°-20°. When the threaded pair is subjected to axial vibration load, the nylon insert can generate a maximum elastic compression of 0.3mm, which increases the friction coefficient between the thread contact surfaces from 0.15 to 0.68 (tested according to ASTM D1894 standard), effectively suppressing loosening displacement caused by thread springback.

[0026] The working principle of this utility model is as follows: Start the laser pointer 4, then rotate the screw 13 clockwise. The screw 13 drives the pressure block 15 upward to detach and contact the base plate 2, causing the mounting bracket 11 to disengage. Then, move the mounting bracket 11 back and forth, and slide it along the two second slide rails 22, moving one of the through holes 7 on the mold 6 to the same straight line as the position indicated by the laser pointer 4. Then, slide the mounting bracket 11 left and right, and the two second slide rails 22 at the bottom of the mounting bracket 11 will slide along the two first slide rails 3, moving one of the through holes 7 on the mold 6 to the position indicated by the laser pointer 4. Then, rotate the screw 13 counterclockwise, and the screw 13 drives the pressure block 15 downward to contact the base plate 2, forming a pressing state. The mounting bracket 11 is fixed by the friction between the base plate 2 and the pressure block 15. Finally, place the decorative panel on the upper surface of the mold 6, thereby achieving the positioning of the position where the decorative panel needs to be punched.

[0027] Finally, the following points should be noted: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0028] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

Claims

1. A positioning fixture for punching holes in a car trunk trim panel, comprising a base plate (2), wherein a punching machine (1) is provided on the top and at the edge of the base plate (2), characterized in that: Two first slide rails (3) are fixedly connected to the top of the base plate (2) and located in the middle position. Two second slide rails (22) are slidably connected to the top of the two first slide rails (3) via a slide table. A mounting bracket (11) is slidably connected to the top of the two second slide rails (22) via a slide table. An extrusion assembly is provided on one side of the outer wall of the mounting bracket (11) to prevent the mounting bracket (11) from moving. A mold (6) with the same shape as the decorative panel is provided on the top of the mounting bracket (11). Multiple through holes (7) corresponding to the stamping holes of the decorative panel are opened on the top of the mold (6). Quick-release assemblies for fixing the mold (6) are provided on both sides of the outer wall of the mounting bracket (1). Two symmetrically arranged support frames (5) are fixedly connected to the bottom inner wall of the stamping machine (1). A laser pointer (4) is detachably connected to the bottom of the support frame (5) via bolts. The position indicated by the laser pointer (4) is located at the stamping position of the stamping head of the stamping machine (1).

2. The positioning fixture for punching holes in an automotive trunk trim panel according to claim 1, characterized in that: The extrusion assembly includes two fixed frames (12) that are fixedly connected to the outer wall of one side of the mounting frame (11) and symmetrically arranged away from the press (1). The top of the fixed frame (12) is provided with a through threaded groove (14). A screw (13) is threadedly connected in the threaded groove (14). A pressure block (15) that can contact the base plate (2) is fixedly connected to the bottom end of the screw (13).

3. The positioning fixture for punching holes in an automotive trunk trim panel according to claim 1, characterized in that: The quick-release assembly includes slots (19) formed on the outer walls of both sides of the mounting bracket (11). Both sides of the mold (6) are fixedly connected to a fixing plate (16). One side of the fixing plate (16) has a through slot (17). A magnetic rod (18) is slidably connected in the slot (17) to be inserted into the slot (19) and adsorbed to the inner wall of the slot (19).

4. The positioning fixture for punching holes in a car trunk trim panel according to claim 3, characterized in that: The bottom of the mold (6) and the four corners are fixedly connected with multiple positioning rods (20), and the top of the mounting bracket (11) is provided with positioning grooves (21) that correspond one-to-one with the multiple positioning rods (20).

5. The positioning fixture for punching holes in a car trunk trim panel according to claim 1, characterized in that: The top of the mounting bracket (11) is provided with a cavity for holding stamping waste.

6. A positioning fixture for punching holes in an automotive trunk trim panel according to claim 5, characterized in that: The mounting bracket (11) has two baffles (9) on its inner wall and at its edge.

7. A positioning fixture for punching holes in an automotive trunk trim panel according to claim 6, characterized in that: Both sides of the two baffles (9) are fixedly connected with sliders (8), and the inner walls of both sides of the mounting bracket (11) are provided with two sliding grooves (10) that are engaged with the sliders (8).

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