Jig for high-precision mold machining

By designing a fixture with limiting and collecting structures, the problem of slippage and deviation of irregular molds during processing was solved, achieving high-precision processing and convenient cleaning, and improving the processing quality and efficiency of automotive sunroof plastic component molds.

CN223789939UActive Publication Date: 2026-01-13CHANGCHUN HENGTUO DIE & MOLD MFG CO LTD
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Patent Information

Application Number
CN202423253490.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-28
Publication Date
2026-01-13
Estimated Expiration
2034-12-28

AI Technical Summary

Technical Problem

Existing high-precision mold processing fixtures are prone to slippage and deviation when processing irregularly shaped automotive sunroof plastic component molds, affecting processing quality.

Method used

A fixture including a limiting structure and a collection structure was designed. The limiting structure consists of a rectangular box, a rotating plate, a connecting rod, a sliding rod, and a spring rubber block to achieve stable limiting of the mold and prevent deviation. The collection structure achieves convenient cleaning through magnetic adsorption and a sliding rail collection frame.

Benefits of technology

It effectively prevents the mold from deviating during processing, ensures processing stability and precision, and facilitates the cleaning of processing debris, thereby improving the practicality and efficiency of the fixture.

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Abstract

The utility model discloses a high-precision jig for mould processing, which relates to the technical field of mould processing of plastic components of automobile sunroofs and comprises a support, a base is fixedly connected to the top end of the support, a plurality of mounting holes penetrating through the base are formed in the edge of the top end of the base, and a limiting structure is fixedly mounted in the middle of the base. A collecting structure is installed in the middle of the support, and the limiting structure comprises a rectangular box fixedly connected to the middle of the bottom end of the base. According to the jig for machining the high-precision mold, under the action of the limiting structure, when an automobile skylight plastic assembly is machined, the automobile skylight plastic assembly can be stably limited, then the machining stability is guaranteed, and meanwhile under the counter-acting force of the spring, the automobile skylight plastic assembly can be stably machined. The rubber blocks at different positions are extruded on the surface of the automobile skylight plastic assembly mold, so that the problem that the automobile skylight plastic assembly mold deviates and slides can be avoided, the jig adapts to the complex shape of the surface of the mold, and the practical effect and the universality of the jig are guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of mold processing technology for plastic components of automotive sunroofs, and in particular to a high-precision mold processing fixture. Background Technology

[0002] Fixtures, also known as tooling jigs or positioning fixtures, are mainly used to fix the workpiece in place, ensuring it is in the correct position for machining or inspection. In high-precision mold machining, fixtures ensure the stability and accuracy of mold parts during the machining process, thereby improving machining precision and efficiency.

[0003] Existing high-precision mold processing fixtures mainly include a bracket, a base, and mounting holes. In use, the mold is placed in the middle of the base, and then processing equipment, such as a cutting mechanism or a polishing structure, is installed on the base through the mounting holes. Then, the high-precision mold, especially the mold for automotive sunroof plastic components, is processed. However, in actual use, because the shape of automotive sunroof plastic component molds is usually irregular, the mold may slip or deviate during processing, which directly affects the processing quality of the automotive sunroof plastic component mold.

[0004] Therefore, a high-precision mold processing fixture is proposed to address the above problems. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, since the shape of automotive sunroof plastic component molds is usually irregular, the mold may slip or deviate during processing, which directly affects the processing quality of automotive sunroof plastic component molds. Therefore, a high-precision mold processing fixture is proposed.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: a high-precision mold processing fixture, including a bracket, a base fixedly connected to the top of the bracket, a plurality of mounting holes penetrating the base being opened at the edge of the top of the base, a limiting structure fixedly installed in the middle of the base, a collecting structure installed in the middle of the bracket, the limiting structure including a rectangular box fixedly connected to the middle of the bottom end of the base, a rotating plate rotatably connected to the middle of the bottom end of the base, connecting rods rotatably connected to both ends of the rotating plate, sliding rods rotatably connected to the ends of the two connecting rods that are far apart, two sliding grooves penetrating the base being opened in the middle of the top of the base, the tops of the two sliding rods being slidably connected to the inner walls of the two sliding grooves respectively, and the limiting box being fixedly connected to the tops of the two sliding rods.

[0007] Preferably, the bottom of the rectangular box has a through hole, the bottom of a sliding rod is slidably connected to the through hole, one end of the sliding rod extending out of the bottom of the rectangular box is fixedly connected to a sliding plate, an electric telescopic rod is fixedly installed at the bottom of the rectangular box, and the output end of the electric telescopic rod is fixedly connected to one side of the sliding plate.

[0008] Preferably, a plurality of sleeve rods are slidably connected to opposite sides of the two limiting boxes. A round rod is slidably connected to one end of each sleeve rod that extends into the interior of the limiting box. The end of the round rod away from the sleeve rod is slidably connected to the inner wall of the limiting box. A spring is fixedly connected to the side of the sleeve rod near the round rod. The end of the spring away from the sleeve rod is fixedly connected to the side of the inner wall of the limiting box. The spring is located outside the round rod. A rubber block is fixedly connected to the end of the sleeve rod away from the round rod.

[0009] Preferably, a limiting ring is fixedly connected to the outer wall of the sleeve rod near one end of the rubber block, and a rubber pad is fixedly connected to the edge of the limiting ring away from the rubber block.

[0010] Preferably, the collecting structure includes a collecting frame, with slide rails fixedly connected to both sides of the collecting frame, and a rectangular groove opened in the middle of the bracket. The shape and size of the outer surface of the slide rail are adapted to the shape and size of the inner wall of the rectangular groove.

[0011] Preferably, a magnet is fixedly connected to each of the two slide rails on opposite sides, and a magnet is fixedly connected to the inside of the rectangular groove. The ends of the magnets one and two that are close to each other are magnetically connected.

[0012] Preferably, the collection frame is located below the mounting hole, and the bottom end of the rectangular box has two through holes 2 through the rectangular box. The two through holes 2 are located directly below the two sliding grooves, and the area of ​​the two through holes 2 is larger than the area of ​​the sliding grooves.

[0013] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0014] 1. This utility model provides a high-precision mold processing fixture. Through the function of the limiting structure, it can stably limit the processing of automotive sunroof plastic components, thereby ensuring the stability of the processing. At the same time, under the reaction force of the spring, the rubber blocks at different positions are pressed against the surface of the automotive sunroof plastic component mold, which can prevent the automotive sunroof plastic component mold from deviating and sliding. This allows it to adapt to the complex shape of the mold surface, ensuring the practical effect and versatility of the fixture.

[0015] 2. This utility model provides a high-precision mold processing fixture. Through the function of the collection structure, it can collect the debris generated during the processing. Thus, without affecting the use of the limiting structure, the fixture can be made easy to clean. At the same time, the attraction between opposite poles of magnet one and magnet two can limit the collection frame, thereby preventing the collection frame from being misaligned and affecting the collection effect of debris. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of this utility model in the form of an explosion.

[0018] Figure 3 This is a schematic diagram of the limiting box structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the rectangular box structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of the telescopic rod of this utility model.

[0021] In the diagram: 1. Bracket; 2. Base; 3. Mounting hole; 4. Limiting structure; 41. Rectangular box; 42. Rotating plate; 43. Connecting rod; 44. Slide rod; 45. Slide groove; 46. Limiting box; 47. Through hole one; 48. Slide plate; 49. Electric telescopic rod; 410. Sleeve rod; 411. Round rod; 412. Spring; 413. Rubber block; 414. Limiting ring; 415. Rubber pad; 5. Collection structure; 51. Collection frame; 52. Slide rail; 53. Magnet one; 54. Magnet two; 55. Through hole two. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Specific implementation examples are given below.

[0024] Please see Figure 1 - Figure 5This utility model provides a technical solution: a high-precision mold processing fixture, including a support 1, a base 2 fixedly connected to the top of the support 1, several mounting holes 3 penetrating the base 2 being opened at the edge of the top of the base 2, a limiting structure 4 fixedly installed in the middle of the base 2, and a collecting structure 5 installed in the middle of the support 1. The limiting structure 4 includes a rectangular box 41 fixedly connected to the middle of the bottom end of the base 2, a rotating plate 42 rotatably connected to the middle of the bottom end of the base 2, connecting rods 43 rotatably connected to both ends of the rotating plate 42, and sliding rods 44 rotatably connected to the ends of the two connecting rods 43 that are far apart from each other. Two sliding grooves 45 are provided through the base 2. The tops of the two sliding rods 44 are slidably connected to the inner walls of the two sliding grooves 45 respectively. The tops of the two sliding rods 44 are fixedly connected to limit boxes 46. The rotation between the two connecting rods 43 and the rotating plate 42 can drive the two sliding rods 44 to slide synchronously towards each other. During this process, the two sliding grooves 45 play a limiting and guiding role on the two sliding rods 44, thereby ensuring that the two limit boxes 46 can slide stably towards the automotive sunroof plastic component mold, thereby achieving the effect of limiting them and ensuring the high precision of the automotive sunroof plastic component mold processing.

[0025] like Figure 4 As shown, a through hole 47 is provided at the bottom of the rectangular box 41. The bottom of a sliding rod 44 is slidably connected to the through hole 47. A slide plate 48 is fixedly connected to one end of the sliding rod 44 that extends through the bottom of the rectangular box 41. An electric telescopic rod 49 is fixedly installed at the bottom of the rectangular box 41. The output end of the electric telescopic rod 49 is fixedly connected to one side of the slide plate 48. The electric telescopic rod 49 can drive the slide plate 48 to slide, thereby causing the sliding rod 44 to slide.

[0026] like Figure 5 As shown, several sleeve rods 410 are slidably connected to one side of each of the two limiting boxes 46. One end of each sleeve rod 410, which extends into the interior of the limiting box 46, is slidably connected to a round rod 411. The end of the round rod 411 away from the sleeve rod 410 is slidably connected to the inner wall of the limiting box 46. A spring 412 is fixedly connected to the side of the sleeve rod 410 near the round rod 411. The end of the spring 412 away from the sleeve rod 410 is fixedly connected to the side of the inner wall of the limiting box 46. The spring 412 is located outside the round rod 411. A rubber block 413 is fixedly connected to the end of the sleeve rod 410 away from the round rod 411. The rubber block 413 can prevent excessive clamping, which could damage the mold of the car sunroof plastic component. At the same time, under the reaction force of the spring 412, the rubber blocks 413 at different positions are pressed against the surface of the mold of the car sunroof plastic component, which can prevent the mold of the car sunroof plastic component from slipping or deviating.

[0027] like Figure 5As shown, a limiting ring 414 is fixedly connected to the outer wall of the sleeve rod 410 near the end of the rubber block 413. A rubber pad 415 is fixedly connected to the edge of the limiting ring 414 away from the rubber block 413. When the sleeve rod 410 is retracted into the limiting box 46 under force, the limiting ring 414 can prevent the spring 412 from being over-compressed, which would lead to fatigue and a decrease in service life. The rubber pad 415 can form a buffer between the limiting ring 414 and the limiting box 46, thereby protecting the limiting ring 414, the limiting box 46 and the spring 412.

[0028] like Figure 2 As shown, the collection structure 5 includes a collection frame 51, with slide rails 52 fixedly connected to both sides of the collection frame 51. A rectangular groove is provided in the middle of the bracket 1. The shape and size of the outer surface of the slide rail 52 are adapted to the shape and size of the inner wall of the rectangular groove. After the plastic component mold of the car sunroof is processed, the collection frame 51 can be taken out by the sliding action between the slide rail 52 and the rectangular groove, and then the debris inside can be processed.

[0029] like Figure 2 As shown, magnet 1 53 is fixedly connected to the side of the two slide rails 52 that are far apart from each other, and magnet 2 54 is fixedly connected inside the rectangular groove. The ends of magnet 1 53 and magnet 2 54 that are close to each other are magnetically connected. The attraction between opposite poles of magnet 1 53 and magnet 2 54 can limit the position of the collection frame 51, thereby preventing the collection frame 51 from being misaligned and affecting the collection effect of debris.

[0030] like Figure 2 As shown, the collection frame 51 is located below the mounting hole 3. The bottom of the rectangular box 41 has two through holes 55 that penetrate the rectangular box 41. The two through holes 55 are located directly below the two sliding grooves 45, and the area of ​​the two through holes 55 is larger than the area of ​​the sliding grooves 45. After processing, some debris remains on the surface of the base 2. During the cleaning of debris and the process of debris generation, the debris will fall into the collection frame 51 through the mounting hole 3, thereby achieving the effect of easy cleaning. At the same time, the debris that falls into the rectangular box 41 through the sliding grooves 45 will fall back into the collection frame 51 through the two through holes 55, thereby preventing the debris from affecting the use of the limiting structure 4.

[0031] The working principle of this utility model is as follows: In use, the car sunroof plastic component mold is placed in the middle of the base 2, and then the electric telescopic rod 49 is driven, causing one sliding rod 44 to slide. This, in turn, drives the two connecting rods 43 and the rotating plate 42 to rotate, thereby causing the two sliding rods 44 to slide synchronously towards each other. During this process, the two sliding grooves 45 limit and guide the two sliding rods 44, ensuring that the two limiting boxes 46 can slide stably towards the car sunroof plastic component mold, thus achieving the effect of limiting it. When clamping the car sunroof plastic component mold, the rubber block 413 and the sleeve rod 410 are pressed against the car sunroof plastic component mold, causing the sleeve rod 410 to slide into the limiting box 46. The rubber block 413 and the sleeve rod 410 prevent over-clamping, which could damage the car sunroof plastic component mold. Simultaneously, under the reaction force of the spring 412, the rubber blocks 413 at different positions press against the surface of the car sunroof plastic component mold, preventing the mold from slipping or deviating. When the sleeve rod 410 is subjected to force... When retracted into the limiting box 46, the limiting ring 414 can prevent the spring 412 from being over-compressed, thus avoiding fatigue and a reduced service life. The rubber pad 415 can form a buffer between the limiting ring 414 and the limiting box 46, thereby protecting the limiting ring 414, the limiting box 46, and the spring 412. After processing, some debris remains on the surface of the base 2. During the cleaning and generation of debris, the debris will fall into the collection frame 51 through the mounting hole 3, thus facilitating cleaning. Debris falling into the rectangular box 41 through the slide 45 will fall back into the collection frame 51 through the second through hole 55, thus preventing the debris from affecting the use of the limiting structure 4. During this process, the attraction between opposite poles of magnet 1 53 and magnet 2 54 can limit the collection frame 51, thus preventing the collection frame 51 from being misaligned and affecting the collection effect of debris. After the plastic component mold of the car sunroof is processed, the collection frame 51 can be taken out by the sliding action between the slide rail 52 and the rectangular groove, and then the debris inside can be processed.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A jig for high-precision mold processing, comprising a support (1), characterized in that: The top end of the support (1) is fixedly connected with a base (2), a plurality of mounting holes (3) penetrating through the base (2) are formed at the edge of the top end of the base (2), a limiting structure (4) is fixedly installed at the middle part of the base (2), a collecting structure (5) is installed at the middle part of the support (1), the limiting structure (4) comprises a rectangular box (41) fixedly connected at the middle part of the bottom end of the base (2), a rotating plate (42) is rotatably connected at the middle part of the bottom end of the base (2), the both ends of the rotating plate (42) are rotatably connected with connecting rods (43), the ends away from each other of the two connecting rods (43) are rotatably connected with slide rods (44), two slide grooves (45) penetrating through the base (2) are formed at the middle part of the top end of the base (2), the top parts of the two slide rods (44) are slidably connected with the inner walls of the two slide grooves (45), and the top ends of the two slide rods (44) are fixedly connected with limiting boxes (46).

2. The jig for high-precision mold processing according to claim 1, characterized by: A through hole I (47) penetrating through the rectangular box (41) is formed at the bottom end of the rectangular box (41), the bottom of one of the slide rods (44) is slidably connected with the through hole I (47), one end of the slide rod (44) penetrating out of the bottom end of the rectangular box (41) is fixedly connected with a sliding plate (48), and the bottom end of the rectangular box (41) is fixedly installed with an electric telescopic rod (49), and the output end of the electric telescopic rod (49) is fixedly connected with one side of the sliding plate (48).

3. The jig for high-precision mold processing according to claim 1, characterized by: The opposite sides of the two limiting boxes (46) are slidably connected with a plurality of sleeve rods (410), one end of the sleeve rod (410) penetrating into the inside of the limiting box (46) is slidably connected with a round rod (411), the end away from the sleeve rod (410) of the round rod (411) is slidably connected with the inner wall of the limiting box (46), one side of the sleeve rod (410) close to the round rod (411) is fixedly connected with a spring (412), one end of the spring (412) away from the sleeve rod (410) is fixedly connected with one side of the inner wall of the limiting box (46), the spring (412) is located outside the round rod (411), and one end of the sleeve rod (410) away from the round rod (411) is fixedly connected with a rubber block (413).

4. The jig for high-precision mold processing according to claim 3, characterized by: The outer wall of the end of the sleeve rod (410) close to the rubber block (413) is fixedly connected with a limiting ring (414), and the edge of the end of the limiting ring (414) away from the rubber block (413) is fixedly connected with a rubber pad (415).

5. The jig for high-precision mold processing according to claim 1, characterized by: The collecting structure (5) comprises a collecting frame (51), the both sides of the collecting frame (51) are fixedly connected with slide rails (52), the middle part of the support (1) is provided with a rectangular groove, and the shape and size of the outer surface of the slide rail (52) are matched with the shape and size of the inner wall of the rectangular groove.

6. The jig for high-precision mold processing according to claim 5, characterized by: The sides away from each other of the two slide rails (52) are fixedly connected with magnets I (53), the inside of the rectangular groove is fixedly connected with a magnet II (54), and the ends close to each other of the magnet I (53) and the magnet II (54) are magnetically connected.

7. The jig for high-precision mold processing according to claim 5, characterized by: The collecting frame (51) is located below the mounting hole (3), two through holes (55) are arranged in the bottom end of the rectangular box (41), the two through holes (55) are located directly below the two sliding grooves (45), and the area of the through holes (55) is greater than that of the sliding grooves (45).