Positioning tool for machining injection molding part

By using a positioning fixture design that combines toothed blocks and toothed plates, along with the limitation of a limiting plate, the problem of unstable clamping during injection molding is solved, achieving a stable and non-destructive fixing effect.

CN224129537UActive Publication Date: 2026-04-17XUZHOU HAOYANG INTELLIGENT TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XUZHOU HAOYANG INTELLIGENT TECHNOLOGY CO LTD
Filing Date
2025-03-27
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing positioning fixtures for injection molding cannot detect changes in force in a timely manner during clamping, which can easily lead to damage to the injection molded parts, and they are prone to loosening after prolonged use.

Method used

The clamping method uses toothed blocks and toothed plates, combined with the design of a limiting plate and a sliding cylinder. The meshing of the toothed blocks and the limiting plate ensures the stable fixation of the injection molded parts and prevents them from loosening.

Benefits of technology

This allows for timely detection of force changes during clamping, preventing damage to the injection molded parts and improving positioning stability to prevent loosening.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a positioning tool for processing an injection molded part, which comprises a bottom plate, a baffle plate and a fixed plate are respectively arranged on two sides of the upper surface of the bottom plate, a shell is arranged on one side of the fixed plate, toothed plates are symmetrically connected on the shell in a sliding manner, and clamping plates are arranged at the end parts of the toothed plates; through cooperation of a tooth block and a tooth plate, the position of an injection molding part can be clamped and fixed, after the injection molding part is fixed in place, a worker can clearly feel the change of force, the situation that the injection molding part is damaged due to rotation of a screw rod is avoided, then the position of a sliding barrel is limited through a limiting plate, the stability of fixing and positioning is guaranteed, and the working efficiency is improved. And the loosening condition is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of injection molding technology, specifically to a positioning fixture for injection molding processing. Background Technology

[0002] All injection-molded products produced by injection molding machines are collectively referred to as injection molded parts. These parts require subsequent processing such as cutting and grinding, necessitating the use of positioning fixtures to secure them. Current positioning fixtures typically use a threaded rod to position the injection molded parts. However, when the threaded rod rotates, the operator cannot immediately sense the change in force, which can easily lead to excessive tightening and damage to the injection molded parts. Furthermore, the connection via the threaded rod is prone to loosening after prolonged use.

[0003] To address this, a positioning fixture for injection molding parts processing is proposed. Summary of the Invention

[0004] The purpose of this utility model is to provide a positioning fixture for injection molding parts processing to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a positioning fixture for injection molding part processing, including a base plate, a baffle and a fixing plate respectively installed on both sides of the upper surface of the base plate, a housing installed on one side of the fixing plate, toothed plates symmetrically slidably connected on the housing, and a clamping plate installed at the end of the toothed plate;

[0006] The housing is equipped with a slide rod, and slide cylinders are slidably connected to both ends of the slide rod. A toothed block is installed at the end of the slide cylinder, and the toothed block is adapted to the toothed plate.

[0007] Preferably, a threaded rod is installed on the upper surface of the housing, and a limit plate is installed at the bottom end of the threaded rod.

[0008] Preferably, the limiting plate is arc-shaped, and the inner sidewall of the limiting plate is adapted to the outer sidewall of the slide rod.

[0009] Preferably, a spring is installed inside the slide.

[0010] Preferably, a pull rod is installed on the outside of the slide cylinder, and a slide groove is formed on the upper surface of the housing, with the pull rod passing through the interior of the slide groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the position of the injection molded part can be clamped and fixed by the cooperation of the toothed block and toothed plate. When it is fixed in place, the operator can clearly feel the change of force, which avoids the situation of damage to the injection molded part caused by the rotation of the screw. Then, the position of the slide cylinder is restricted by the limiting plate, which ensures the stability of the fixed positioning and avoids the situation of loosening. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of this utility model after the shell has been removed;

[0014] Figure 3 This is a cross-sectional structural diagram of the shell of this utility model.

[0015] In the diagram: 1. Base plate; 2. Baffle; 3. Fixing plate; 4. Housing; 5. Toothed plate; 6. Clamping plate; 7. Toothed block; 8. Pull rod; 9. Threaded rod; 10. Limiting plate; 11. Slide rod; 12. Slide cylinder; 13. Slide groove; 14. Spring. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] Please see Figure 1-3 This utility model provides a technical solution: a positioning fixture for injection molding part processing, including a base plate 1, a baffle 2 and a fixing plate 3 respectively installed on both sides of the upper surface of the base plate 1, a housing 4 installed on one side of the fixing plate 3, a toothed plate 5 symmetrically slidably connected on the housing 4, and a clamping plate 6 installed at the end of the toothed plate 5.

[0018] Inside the housing 4, a slide rod 11 is installed. The two ends of the slide rod 11 are slidably connected to a slide cylinder 12. A toothed block 7 is installed at the end of the slide cylinder 12. The toothed block 7 is adapted to the toothed plate 5.

[0019] like Figure 2 and Figure 3 As shown: A threaded rod 9 is installed on the upper surface of the housing 4, and a limiting plate 10 is installed at the bottom end of the threaded rod 9; with the above configuration, the bottom end of the threaded rod 9 is rotatably connected to the limiting plate 10, so that when the threaded rod 9 moves on the housing 4 through the thread, it can drive the limiting plate 10 to move up and down, thereby limiting the position of the two sliding cylinders 12.

[0020] like Figure 2 and Figure 3 As shown: The limiting plate 10 is arc-shaped, and the inner side wall of the limiting plate 10 is adapted to the outer side wall of the slide rod 11; with the above settings, after the limiting plate 10 moves downward, it will fit against the outer side of the slide rod 11, and then restrict the position of the two slide cylinders 12.

[0021] like Figure 3 As shown: A spring 14 is installed inside the slide cylinder 12; with the above arrangement, the toothed block 7 can be compressed when it is squeezed, and then the elastic force is released to make the toothed block 7 and the toothed plate 5 mesh together, thereby restricting the position of the toothed plate 5.

[0022] like Figure 2 and Figure 3 As shown: A pull rod 8 is installed on the outside of the slide cylinder 12, and a slide groove 13 is opened on the upper surface of the housing 4. The pull rod 8 passes through the interior of the slide groove 13. With the above settings, the pull rod 8 can more easily drive the slide cylinder 12 and the toothed block 7 to move, so that the toothed plate 5 can be pulled back for easy use next time.

[0023] Working principle: First, the injection molded part to be processed is placed on the base plate 1, so that one side of the injection molded part is in contact with the baffle 2. Then, the toothed plate 5 is pushed to move the clamping plate 6. After the clamping plate 6 and the baffle 2 clamp the injection molded part, the toothed plate 5 and the toothed block 7 cooperate to initially restrict its position, preventing the clamping plate 6 from moving arbitrarily. Then, the threaded rod 9 is rotated to make the limiting plate 10 and the outer side of the sliding rod 11 fit together, thereby restricting the position of the sliding cylinders 12 on both sides and preventing them from retracting. This completes the further fixation of the position of the toothed plate 5.

[0024] 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 positioning tool for processing injection molded parts, comprising a base plate (1), characterized in that: The upper surface of the base plate (1) is respectively equipped with a baffle (2) and a fixing plate (3). A housing (4) is installed on one side of the fixing plate (3). A toothed plate (5) is symmetrically slidably connected on the housing (4). A clamping plate (6) is installed at the end of the toothed plate (5). The housing (4) is equipped with a slide rod (11), and slide cylinders (12) are slidably connected to both ends of the slide rod (11). A toothed block (7) is installed at the end of the slide cylinder (12), and the toothed block (7) is adapted to the toothed plate (5).

2. The positioning tool for processing an injection molded part according to claim 1, wherein: A threaded rod (9) is installed on the upper surface of the housing (4), and a limit plate (10) is installed at the bottom end of the threaded rod (9).

3. The positioning tooling for processing of injection molded parts of claim 2, wherein: The limiting plate (10) is arc-shaped, and the inner sidewall of the limiting plate (10) is adapted to the outer sidewall of the slide bar (11).

4. The positioning tool for processing an injection molded part according to claim 1, wherein: A spring (14) is installed inside the slide (12).

5. The positioning tool for processing an injection molded part according to claim 1, wherein: A pull rod (8) is installed on the outside of the slide cylinder (12), and a slide groove (13) is provided on the upper surface of the housing (4). The pull rod (8) passes through the interior of the slide groove (13).