A clamp for HUD graphite mold

By combining guide rails and clamping rods with positioning pins and adsorption components, the problem of accurate positioning and stable clamping of HUD graphite mold fixtures under high-speed production or complex shapes is solved, improving processing accuracy and production efficiency, and extending mold life.

CN224346783UActive Publication Date: 2026-06-12WUHU TOKEN SCI

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHU TOKEN SCI
Filing Date
2025-06-23
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing HUD graphite mold fixtures have low clamping accuracy in high-speed production or complex shapes, and cannot stably maintain the mold position, resulting in processing errors and affecting product quality.

Method used

The design employs a combination of guide rails, clamping rods, positioning pins, and adsorption components. The positioning pins engage with the positioning holes of the graphite mold, while the vacuum suction cups of the adsorption components provide uniform clamping force, ensuring precise positioning and stable fixation of the graphite mold.

🎯Benefits of technology

It achieves precise positioning and stable clamping of graphite molds, reduces movement and vibration during processing, improves processing accuracy and consistency, extends mold life, reduces wear, simplifies operation procedures, and improves production efficiency.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224346783U_ABST
    Figure CN224346783U_ABST
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Abstract

The utility model relates to the technical field of clamp, specifically, the utility model relates to a kind of clamp for HUD graphite mould, including guide rail;Clamp rod is equipped on the guide rail;Positioning pin and suction assembly are equipped on the clamp rod;Graphite mould is equipped between adjacent clamp rod;The graphite mould is connected with the positioning pin;The graphite mould is abutting with the suction assembly;The utility model is equipped with positioning pin, positioning pin is matched with the positioning hole on graphite mould, the bottom of clamp rod is also equipped with clamping groove, and positioning block is matched with the clamping groove and the positioning groove on graphite mould;So as to realize the accurate positioning of two clamp rods and graphite mould;The utility model is fixed by suction assembly to graphite mould, graphite mould is relatively fragile, and traditional mechanical clamping mode can lead to graphite mould damage, and the suction assembly of the device can provide uniform clamping force, avoid local excessive pressure, while avoiding its damage in stable clamping and fixing graphite mould.
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Description

Technical Field

[0001] This utility model relates to the field of fixture technology, and more specifically, to a fixture for HUD graphite molds. Background Technology

[0002] In the production process of HUD (Head-Up Display) components, graphite molds and mold fixtures are required. Currently, the clamping accuracy of the mold fixtures for graphite molds is low. Especially in high-speed production or complex shapes, the fixtures cannot stably maintain the mold position, resulting in errors during mold processing and affecting the quality of the final product.

[0003] The applicant discovered through a search that Chinese patent document application number 201410430493.2, published on January 28, 2015, discloses a screw drill tail forming mold and its fixing fixture, including a base, a clamping block, a mold, and a bottom fixing block. The base has a groove for placing the clamping block, which is placed in the groove and fastened with bolts to fit tightly against the mold. The base also has a mold fixing opening, where the mold is placed and pressed tightly against the bottom fixing block, which is fastened to the lower end of the base with bolts. This device also fails to solve the aforementioned technical problem.

[0004] Therefore, in order to improve or solve at least one of the above problems, it is necessary to provide a fixture for HUD graphite molds that can achieve precise and stable clamping of HUD graphite molds. Utility Model Content

[0005] The purpose of this invention is to provide a clamp for HUD graphite molds that can achieve precise and stable clamping of HUD graphite molds.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a fixture for HUD graphite mold, including a guide rail; a clamping rod is provided on the guide rail; a positioning pin and an adsorption component are provided on the clamping rod; a graphite mold is provided between adjacent clamping rods; the graphite mold is connected to the positioning pin; and the graphite mold is pressed against the adsorption component.

[0007] The clamping rod is provided with multiple pin holes; the positioning pin is disposed in the pin holes; the graphite mold is provided with positioning holes; the positioning pin is inserted into the positioning holes.

[0008] The bottom of the clamping rod is provided with a slot; a positioning block is provided in the slot; a positioning groove is provided on the graphite mold; and the positioning block is inserted into the positioning groove.

[0009] The guide rail is provided with an installation sleeve; both ends of the clamping rod are provided with clamps; the clamps are connected to the installation sleeve.

[0010] The clamp is provided with bolt holes; bolts are provided in the bolt holes; the mounting sleeve is provided with multiple threaded holes; the bolts are connected to the threaded holes.

[0011] The mounting sleeve includes a first sleeve and a second sleeve; the clamping rod includes a first clamping rod and a second clamping rod; the first sleeve is fixedly connected to the guide rail and is connected to the first clamping rod; the second sleeve is sleeved on the guide rail and is connected to the second clamping rod.

[0012] The adsorption assembly includes a vacuum suction cup; the clamping rod has a mounting surface on the side near the graphite mold; the mounting surface has a mounting hole; the vacuum suction cup is installed in the mounting hole; the vacuum suction cup is connected to an air pipe; the air pipe is connected to an air pump.

[0013] The mounting hole is located between the two pin holes; the clamping rod has an observation slot on the side away from the slot.

[0014] The clamping rod is made of alloy steel or aluminum alloy.

[0015] The beneficial effects of this utility model are as follows:

[0016] This invention features a positioning pin that engages with a positioning hole on the graphite mold. Additionally, the bottom of the clamping rod has a slot, which engages with a positioning block and a positioning groove on the graphite mold, thus achieving precise positioning of the two clamping rods and the graphite mold. Furthermore, this invention uses an adsorption assembly to adhere and fix the graphite mold. Graphite molds are relatively fragile, and traditional mechanical clamping methods may damage them. The adsorption assembly of this device provides uniform clamping force, avoiding excessive local pressure, and stably clamping and fixing the graphite mold while preventing damage.

[0017] Graphite molds are commonly used in high-precision machining processes. This device can effectively fix the position of the graphite mold, reduce mold movement or vibration during machining, thereby improving machining accuracy and consistency.

[0018] With a well-designed fixture, quick mold changes and simplified operation can be achieved. This not only shortens processing time but also reduces manual intervention and improves production efficiency. Graphite is relatively brittle and easily damaged by impact or excessive pressure. This device ensures the stability of the graphite mold during operation, reducing the risk of damage caused by improper operation or vibration. This device effectively reduces wear and uneven pressure on the mold surface, thereby reducing mold wear and extending its service life. This device provides a fixed position and stable support, reducing errors and inconsistencies caused by manual operation, ensuring the mold remains stable throughout the processing. Attached Figure Description

[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0020] Figure 1 This is a schematic diagram of the clamping rod of this utility model.

[0021] Figure 2 This is a schematic diagram of the guide rail structure of this utility model.

[0022] The markings in the above figures are all:

[0023] The diagram is marked as follows:

[0024] 1. Guide rail; 101. Mounting sleeve; 102. Threaded hole; 103. First sleeve; 104. Second sleeve.

[0025] 2. Clamping bar, 201. First clamping bar, 202. Second clamping bar.

[0026] 3. Locating pin, 301. Pin hole, 302. Slot, 303. Locating block.

[0027] 4. Adsorption components, 401 vacuum suction cup,

[0028] 5. Clamps, 501 bolt holes,

[0029] 6. Mounting surface, 601, Mounting hole,

[0030] 7. Observe the groove, 701, and the support platform. Detailed Implementation

[0031] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of this utility model, and to facilitate its implementation.

[0032] Figure 1-2 The HUD graphite mold fixture shown includes a guide rail 1; a clamping rod 2 is provided on the guide rail 1; a positioning pin 3 and an adsorption component 4 are provided on the clamping rod 2; a graphite mold is provided between adjacent clamping rods 2; the graphite mold is connected to the positioning pin 3; and the graphite mold is pressed against the adsorption component 4.

[0033] The positioning pin 3 engages with the positioning hole on the graphite mold to achieve precise positioning of the two clamping rods 2 and the graphite mold; the adsorption component 4 adsorbs and fixes the graphite mold. The graphite mold is relatively fragile, and traditional mechanical clamping methods may damage the graphite mold. The adsorption component 4 of this device can provide uniform clamping force, avoid excessive local pressure, and prevent damage to the graphite mold while stably clamping and fixing it.

[0034] The clamping rod 2 is provided with a plurality of pin holes 301; the positioning pins 3 are arranged in the pin holes 301; the graphite mold is provided with positioning holes; the positioning pins 3 are inserted into the positioning holes.

[0035] The pin holes 301 are through holes; in this embodiment, the clamping rod 2 is provided with two pin holes 301; the positioning pins 3 are arranged in the pin holes 301 and can slide in the pin holes 301, and the positioning pins 3 are perpendicularly arranged with respect to the clamping rod 2; the staff can manually push the positioning pins 3 into the positioning holes of the graphite mold; or the positioning pins 3 are connected with a cylinder, and the cylinder drives the piston rod to extend, so as to push the positioning pins 3 into the positioning holes of the graphite mold; the positioning pins 3 are used to accurately position the graphite mold and prevent the graphite mold from displacing during the processing; the positioning pins 3 are made of wear-resistant materials to avoid damage during long-term use.

[0036] The bottom of the clamping rod 2 is provided with a clamping groove 302; a positioning block 303 is arranged in the clamping groove 302; the graphite mold is provided with a positioning groove; the positioning block 303 is inserted into the positioning groove.

[0037] The bottoms of the clamping rod 2 and the graphite mold are provided with a support platform 701; the clamping groove 302 is arranged on the bottom surface of the clamping rod 2 and is perpendicularly arranged with respect to the clamping rod 2; the clamping groove 302 is open on one side close to the support platform 701; the positioning block 303 passes through the clamping groove 302 and is inserted into the positioning groove on the graphite mold, so as to achieve precise positioning of the clamping rod 2 and the graphite mold.

[0038] The guide rail 1 is provided with an installation sleeve 101; clamping rings 5 are arranged at both ends of the clamping rod 2; the clamping rings 5 are connected to the installation sleeve 101.

[0039] This device is provided with two guide rails 1; the installation sleeve 101 is installed on the guide rail 1; the installation sleeve 101 is a hollow square tube; the clamping ring 5 is of a "U" shape structure; the clamping ring 5 is clamped tightly on the clamping rod 2, and the clamping ring 5 is connected to the top surface of the installation sleeve 101 through bolts.

[0040] The clamping ring 5 is provided with bolt holes 501; bolts are arranged in the bolt holes 501, and the installation sleeve 101 is provided with a plurality of threaded holes 102; the bolts are connected in the threaded holes 102.

[0041] On the installation sleeve 101, taking two threaded holes 102 as a group, multiple groups of threaded holes 102 are arranged along the clamping rod 2; the two clamping rings 5 on the clamping rod 2 can adjust the distance according to the size of the graphite mold; when the positions of the two clamping rings 5 are adjusted, the clamping rings 5 select appropriate threaded holes 102 on the installation sleeve 101 for bolt connection to complete the fixation, and can adapt to graphite molds of different sizes and shapes.

[0042] The mounting sleeve 101 includes a first sleeve 103 and a second sleeve 104; the clamping rod 2 includes a first clamping rod 201 and a second clamping rod 202; the first sleeve 103 is fixedly connected to the guide rail 1 and is connected to the first clamping rod 201; the second sleeve 104 is fitted onto the guide rail 1 and is connected to the second clamping rod 202.

[0043] The first sleeve 103 is fixedly connected to the guide rail 1, and both ends of the first clamping rod 201 are fixedly connected to the first sleeve 103; the second sleeve 104 is sleeved on the guide rail 1 and can slide along the guide rail 1; the second clamping rod 202 is fixedly connected to the second sleeve 104, so that the second clamping rod 202 can slide along the guide rail 1; during operation, the graphite mold is placed between the first clamping rod 201 and the second clamping rod 202, the graphite mold is pressed tightly against the first clamping rod 201, and then the second clamping rod 202 is pressed against the graphite mold. The positioning pin 3 and the positioning block 303 are inserted, and then the adsorption assembly 4 is activated to achieve the clamping and fixing of the graphite mold.

[0044] The adsorption assembly 4 includes a vacuum suction cup 401; the clamping rod 2 has a mounting surface 6 on the side near the graphite mold; the mounting surface 6 has a mounting hole 601; the vacuum suction cup 401 is installed in the mounting hole 601; the vacuum suction cup 401 is connected to an air pipe; the air pipe is connected to an air pump.

[0045] The air pump draws air from the inside of the vacuum suction cup 401 through the air pipe, creating a negative pressure environment. The pressure difference between the inside and outside of the air generates an adsorption force that presses the suction cup tightly against the surface of the graphite mold. The clamping rod 2 serves as a support structure, and its mounting surface 6 provides a precise positioning reference and rigid support for the vacuum suction cup 401. The air pipe serves as a gas transmission channel and has the characteristics of being resistant to negative pressure and bending.

[0046] The mounting hole 601 is located between the two pin holes 301; the clamping rod 2 has an observation slot 7 on the side away from the slot 302.

[0047] The observation slot 7 allows for observation of the connection structure between the air tube and the vacuum suction cup 401, enabling timely detection of whether the connection between the air tube and the vacuum suction cup 401 is intact.

[0048] Clamp 2 is made of alloy steel or aluminum alloy.

[0049] The clamp 2 is made of high-strength alloy steel or aluminum alloy, which not only provides sufficient strength but also reduces the overall weight of the clamp, making it easy to operate and adjust.

[0050] The specific workflow of this utility model is as follows:

[0051] Place the graphite mold between the first clamping rod 201 and the second clamping rod 202, press the graphite mold against the first clamping rod 201, then press the second clamping rod 202 against the graphite mold, insert the positioning pin 3 and the positioning block 303, then start the air pump, and the vacuum suction cup 401 will adsorb the graphite mold, thus achieving the clamping and fixing of the graphite mold.

[0052] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A fixture for a HUD graphite mold, characterized in that: Includes a guide rail (1); the guide rail (1) is provided with a clamping rod (2); the clamping rod (2) is provided with a positioning pin (3) and an adsorption component (4); a graphite mold is provided between adjacent clamping rods (2); the graphite mold is connected to the positioning pin (3); the graphite mold is pressed against the adsorption component (4).

2. A fixture for a HUD graphite mold according to claim 1, characterized in that: The clamping rod (2) is provided with multiple pin holes (301); the positioning pin (3) is provided in the pin holes (301); the graphite mold is provided with positioning holes; the positioning pin (3) is inserted into the positioning holes.

3. A fixture for a HUD graphite mold according to claim 2, characterized in that: The clamping rod (2) has a slot (302) at its bottom; a positioning block (303) is provided in the slot (302); a positioning groove is provided on the graphite mold; and the positioning block (303) is inserted into the positioning groove.

4. A fixture for a HUD graphite mold according to claim 3, characterized in that: The guide rail (1) is provided with an installation sleeve (101); both ends of the clamp rod (2) are provided with clamps (5); the clamps (5) are connected to the installation sleeve (101).

5. A fixture for a HUD graphite mold according to claim 4, characterized in that: The clamp (5) is provided with bolt holes (501); a bolt is provided in the bolt holes (501), and the mounting sleeve (101) is provided with multiple threaded holes (102); the bolt is connected in the threaded holes (102).

6. A fixture for a HUD graphite mold according to claim 5, characterized in that: The mounting sleeve (101) includes a first sleeve (103) and a second sleeve (104); the clamping rod (2) includes a first clamping rod (201) and a second clamping rod (202); the first sleeve (103) is fixedly connected to the guide rail (1), and the first sleeve (103) is connected to the first clamping rod (201); the second sleeve (104) is sleeved on the guide rail (1), and the second sleeve (104) is connected to the second clamping rod (202).

7. A fixture for a HUD graphite mold according to any one of claims 5-6, characterized in that: The adsorption assembly (4) includes a vacuum suction cup (401); the clamping rod (2) has a mounting surface (6) on the side near the graphite mold; the mounting surface (6) has a mounting hole (601); the vacuum suction cup (401) is installed in the mounting hole (601); the vacuum suction cup (401) is connected to an air pipe; the air pipe is connected to an air pump.

8. A fixture for a HUD graphite mold according to claim 7, characterized in that: The mounting hole (601) is located between the two pin holes (301); the clamping rod (2) has an observation slot (7) on the side away from the slot (302).

9. A fixture for a HUD graphite mold according to claim 8, characterized in that: The clamp (2) is a steel rod or an aluminum alloy rod.