A plastic part flatness correction jig

By designing a flatness correction fixture for plastic parts, and using a correction rod and a pressure plate to squeeze and correct the workpiece, the problem of flatness error caused by injection molds is solved, thereby improving processing efficiency and the practicality of the fixture.

CN224545309UActive Publication Date: 2026-07-24LVPIN TECH (SUZHOU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LVPIN TECH (SUZHOU) CO LTD
Filing Date
2025-08-01
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing injection molds result in large internal flatness errors in plastic parts after injection molding, which cannot meet the needs of subsequent processing and affects processing efficiency.

Method used

Design a flatness correction fixture for plastic parts, including a worktable, a support frame, a correction block and a pressure plate. The pressure plate is driven to move downward by a servo cylinder, and the workpiece is squeezed and corrected by a correction rod to form a correction space for internal correction.

Benefits of technology

It improves the flatness of plastic parts, meets the needs of subsequent processing, and increases processing efficiency and the practicality of the fixture.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of plastic part processing, specifically disclose a kind of plastic piece flatness correction fixture, including workbench and the support frame being installed on workbench, the workbench is also provided with two groups of correction blocks, and each group correction block is two, respectively installed on the both sides of workbench, and two correction blocks are installed with workpiece;A pressure plate is slidably connected on the support frame, and the pressure plate is installed with the correction part for correcting workpiece. When using, workpiece is installed between two correction blocks, then moves downward by pressure plate, so that correction part and workpiece abut, then continuously drive pressure plate to move downward, and pressure plate will be driven to extrude workpiece by correction part, so as to correct the inside of workpiece, meet the subsequent processing needs of workpiece, improve the practicability of the correction fixture, and the use effect is better.
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Description

Technical Field

[0001] This utility model relates to the field of plastic parts processing technology, specifically to a plastic parts flatness correction fixture. Background Technology

[0002] Automobiles are an indispensable means of transportation in modern life, and they contain a large number of parts. Some of these parts are made of plastic, including the dashboard and center console, and injection molding equipment is required in the production of automotive plastic parts.

[0003] Existing plastic injection molds, such as the curved automotive plastic part injection mold disclosed in CN212707769U, include an upper mold base and a lower mold base. A supporting mold base is provided below the lower mold base. The upper mold base and the supporting mold base are connected by guide pillars, and the lower mold base and the guide pillars are slidably connected by guide sleeves. An injection port is provided at the top of the upper mold base, and the injection port is connected to the upper mold base by a slot. A fixed mold base plate is provided below the upper mold base, and a fixed template is provided below the fixed mold base plate. The fixed template and the fixed mold base plate are connected to the upper mold base by screws. A supporting plate is provided above the lower mold base.

[0004] For example, Chinese patent with authorization announcement number CN219748773U and titled "An Injection Mold for Plastic Parts of New Energy Vehicles" discloses an injection mold for plastic parts of new energy vehicles, including a pressure module, a movable plate, and a cooling pipe. The pressure module has a mold groove below it, a forming groove is formed on the mold groove, and the movable plate is provided in the forming groove.

[0005] Injection molds, such as those mentioned in the patents, can meet the injection molding needs of plastic parts to a certain extent. However, during the injection molding process, various factors can cause errors in the flatness of the plastic parts after injection molding. When the error exceeds the predetermined range, it cannot meet the needs of subsequent processing and can only be treated as scrap for reprocessing, which greatly affects processing efficiency and has certain shortcomings. Utility Model Content

[0006] The purpose of this utility model is to provide a plastic part flatness correction fixture to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a plastic part flatness correction fixture, including a workbench and a support frame mounted on the workbench. The workbench is also provided with two sets of correction blocks, each set consisting of two blocks, which are respectively mounted on both sides of the workbench. A workpiece is installed between the two correction blocks. A pressure plate is slidably connected to the support frame, and a correction part for correcting the workpiece is mounted on the pressure plate.

[0008] Furthermore, each of the straightening blocks is inclined, and a straightening space is formed between the two straightening blocks and the workpiece.

[0009] Furthermore, the straightening part includes a straightening rod mounted on the pressure plate, the straightening rod abutting against a contact portion on the workpiece.

[0010] Furthermore, the workbench is provided with an installation slot, through which the correction block is installed on the workbench.

[0011] Furthermore, a locking rod is provided between the straightening block and the mounting groove, and the locking rod is a fastening bolt.

[0012] Furthermore, a power unit is provided between the support frame and the pressure plate to drive the pressure plate to move vertically.

[0013] Furthermore, the power unit includes a servo cylinder, the output end of which is mounted on a pressure plate.

[0014] Furthermore, a limiting part is provided between the pressure plate and the support frame to improve the stability of the pressure plate when it slides.

[0015] Furthermore, the limiting part includes a limiting rod fixedly connected to the support frame, and the limiting rod is slidably connected to the pressure plate through a positioning hole.

[0016] Furthermore, an anti-slip mat is provided on the bottom of the workbench.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: In the process of using this plastic part flatness correction fixture, the workpiece is installed between two correction blocks, and then the pressure plate moves downward so that the correction part abuts against the workpiece. When the pressure plate is continuously driven to move downward, the pressure plate will squeeze the workpiece through the correction part, thereby correcting the inside of the workpiece, meeting the needs of subsequent processing of the workpiece, improving the practicality of the correction fixture, and achieving better results. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0020] Figure 2 This is a schematic diagram of the installation method of the correction block provided in an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the workpiece hidden state provided in an embodiment of the present utility model;

[0022] Figure 4 This is a front view of the contact state between the workpiece and the straightening block provided in an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the pressure bar connection method provided in an embodiment of the present utility model;

[0024] Figure 6 A schematic diagram of the workpiece structure provided for an embodiment of this utility model.

[0025] Explanation of reference numerals in the attached drawings: 1. Worktable; 2. Pressure plate; 3. Workpiece; 4. Correction block; 5. Mounting groove; 6. Locking rod; 7. Correction space; 8. Contact part; 9. Correction rod; 10. Limiting part. Detailed Implementation

[0026] 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.

[0027] Please see Figures 1-6 This utility model provides a technical solution: a plastic part flatness correction fixture, including a workbench 1 and a support frame installed on the workbench 1. The workbench 1 is also provided with two sets of correction blocks 4, each set of correction blocks 4 consists of two blocks, which are respectively installed on both sides of the workbench 1. A workpiece 3 is installed between the two correction blocks 4. A pressure plate 2 is slidably connected to the support frame, and a correction part for correcting the workpiece 3 is installed on the pressure plate 2.

[0028] Specifically, this plastic part flatness straightening fixture includes a worktable 1 and a support frame mounted on the worktable 1. The worktable 1 is also equipped with two sets of straightening blocks 4, enabling simultaneous straightening of two workpieces 3. Each set of straightening blocks 4 consists of two blocks, mounted on opposite sides of the worktable 1, with the workpiece 3 positioned between the two blocks 4 to meet the straightening requirements. A pressure plate 2 is slidably connected to the support frame, and a straightening part for straightening the workpiece 3 is mounted on the pressure plate 2. Specifically, this straightening operation occurs before the workpiece 3 is fully formed, i.e., while it is still in a malleable state. Therefore, during use, the workpiece 3 is placed between the two straightening blocks 4, and then the pressure plate 2 moves downwards, causing the straightening part to contact the workpiece 3. As the pressure plate 2 continues to move downwards, it compresses the workpiece 3 through the straightening part, thereby straightening the interior of the workpiece 3 to meet the subsequent processing requirements, improving the practicality of the straightening fixture and resulting in better performance.

[0029] In the embodiments provided by this utility model, each straightening block 4 is inclined, and a straightening space 7 is formed between the two straightening blocks 4 and the workpiece 3. When the straightening part moves downward, the straightening operation is performed on the inside of the workpiece 3 through the straightening space 7 to meet the work requirements.

[0030] In the embodiments provided by this utility model, the correction part includes a correction rod 9 installed on the pressure plate 2, and the correction rod 9 abuts against the contact part 8 on the workpiece 3 to meet the correction needs of the workpiece 3.

[0031] In the embodiments provided by this utility model, the workbench 1 is provided with an installation groove 5, and the straightening block 4 is installed on the workbench 1 through the installation groove 5, which can improve the stability of the straightening block 4 during installation and make the use effect better.

[0032] In the embodiments provided by this utility model, a locking rod 6 is provided between the straightening block 4 and the mounting groove 5. The locking rod 6 is a fastening bolt, which can further improve the stability of the straightening block 4 during installation and make the effect better.

[0033] In the embodiment provided by this utility model, a power unit is provided between the support frame and the pressure plate 2 to drive the pressure plate 2 to move vertically and provide power for the movement of the support frame. The power unit includes a servo cylinder, the output end of which is mounted on the pressure plate 2 to meet the correction needs of the workpiece 3.

[0034] In the embodiments provided by this utility model, a limiting part 10 is also provided between the pressure plate 2 and the support frame. The limiting part 10 includes a limiting rod fixedly connected to the support frame. The limiting rod is slidably connected to the pressure plate 2 through a positioning hole to improve the stability of the pressure plate 2 when it slides.

[0035] In the embodiments provided by this utility model, an anti-slip pad is provided on the bottom of the workbench 1 to improve the stability of the fixture during operation.

[0036] It should be noted that all electrical equipment involved in this application can be powered by batteries or external power sources.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flatness correction fixture for plastic parts, comprising a workbench (1) and a support frame mounted on the workbench (1), characterized in that: Two groups of correction blocks (4) are further provided on the workbench (1), each group of correction blocks (4) has two, which are respectively installed on both sides of the workbench (1), and a workpiece (3) is installed between the two correction blocks (4); A pressing plate (2) is slidably connected to the support frame, and a correction part for correcting the workpiece (3) is installed on the pressing plate (2).

2. The flatness correction fixture for plastic parts according to claim 1, characterized in that: Each of the correction blocks (4) is inclined, and a correction space (7) is formed between the two correction blocks (4) and the workpiece (3).

3. A flatness correction fixture for plastic parts according to claim 1, characterized in that: The correction part includes a correction rod (9) installed on the pressing plate (2), and the correction rod (9) abuts against a contact part (8) on the workpiece (3).

4. A plastic part flatness correction fixture according to claim 1, characterized in that: An installation groove (5) is formed on the workbench (1), and the correction block (4) is installed on the workbench (1) through the installation groove (5).

5. The flatness correction fixture for plastic parts according to claim 4, wherein: A locking rod (6) is provided between the correction block (4) and the installation groove (5), and the locking rod (6) is a fastening bolt.

6. The flatness correction fixture for plastic parts according to claim 1, wherein: A power part is provided between the support frame and the pressing plate (2) for driving the pressing plate (2) to move vertically.

7. The flatness correction fixture for plastic parts according to claim 6, wherein: The power part includes a servo cylinder, and the output end of the servo cylinder is installed on the pressing plate (2).

8. A plastic part flatness correction fixture according to claim 6, characterized in that: A limiting part (10) is further provided between the pressing plate (2) and the support frame to improve the stability of the pressing plate (2) when sliding.

9. The flatness correction fixture for plastic parts according to claim 8, characterized in that: The limiting part (10) includes a limiting rod fixedly connected to the support frame, and the limiting rod is slidably connected to the pressing plate (2) through a positioning hole.

10. A plastic part flatness correction fixture according to claim 1, characterized in that: An anti-slip pad is provided on the bottom of the workbench (1).