A plastic mold processing fixture

By using airbag clamping and electromagnet fixation, the problems of fixture damage and instability in plastic mold processing are solved, achieving flexible adaptive clamping and stable clamping, which is suitable for high-precision mold processing.

CN224407343UActive Publication Date: 2026-06-26DONGGUAN FUSONG IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN FUSONG IND CO LTD
Filing Date
2025-06-30
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In existing plastic mold processing, tooling fixtures are prone to damaging the mold surface and are unstable in clamping, especially when processing complex or high-precision molds, where vibration affects clamping stability.

Method used

The system employs an airbag clamping method combined with electromagnet fixation. Through the flexible contact of the airbag and the attraction of the electromagnet, adaptive clamping is achieved, which avoids mold damage and enhances clamping stability.

Benefits of technology

It effectively prevents scratches on the mold surface, adapts to molds of different shapes, ensures uniform distribution of clamping force, improves clamping stability, and prevents loosening caused by vibration.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224407343U_ABST
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Abstract

The utility model relates to the technical field of plastic mould processing, concretely is a kind of plastic mould processing's tool fixture, the utility model includes bottom plate, two clamping plates are slidably connected on bottom plate upper end surface, the outer wall of two clamping plates is slidably connected with several installation frames, the inside of several installation frames is provided with several connecting pipes, the one end of several connecting pipes is fixedly connected with air bag, connecting pipe outer wall is fixedly connected with gas pipe, valve is installed on the outer wall of gas pipe, adjusting mechanism is set up on two clamping plates, cylinder is installed on the two outer side walls of bottom plate, the utility model is through setting each air bag of convenient adjustment spacing, the plastic mould of different clamping needs is clamped, avoid the damage to plastic mould, and clamping force is even, further fixed simultaneously through setting electromagnet, sliding block and iron plate can to clamping plate, avoid subsequent processing operation to produce loosening, improve clamping stability.
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Description

Technical Field

[0001] This utility model relates to the field of plastic mold processing technology, specifically a tooling fixture for plastic mold processing. Background Technology

[0002] Plastic molds are a type of combined mold used for compression molding, extrusion molding, injection molding, blow molding, and low-foaming molding. The coordinated changes of the mold's punch, die, and auxiliary molding system can produce a series of plastic parts of different shapes and sizes. During the plastic mold processing, tooling fixtures are often used to clamp and fix the plastic mold to facilitate subsequent processing.

[0003] In the prior art, tooling fixtures used for plastic molds mostly adopt rigid clamping methods, which can easily damage the surface of the plastic mold, especially for molds with complex shapes or high surface precision requirements. In addition, after the fixture clamps the plastic mold, they are easily loosened by the vibration force during processing, affecting the stability of the clamping. Utility Model Content

[0004] The purpose of this utility model is to provide a tooling fixture for processing plastic molds, so as to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A tooling fixture for processing plastic molds includes a base plate, two clamping plates slidably connected to the upper surface of the base plate, a plurality of mounting frames slidably connected to the outer walls of the two clamping plates, a plurality of connecting pipes arranged inside the plurality of mounting frames, an air bladder fixedly connected to one end of each of the plurality of connecting pipes, an air filling pipe fixedly connected to the outer wall of each connecting pipe, a valve installed on the outer wall of each air filling pipe, an adjustment mechanism provided on both clamping plates, cylinders installed on both outer walls of the base plate, and the output end of each cylinder connected to the clamping plate, and a transverse groove penetrating through the outer wall of the clamping plate;

[0007] The adjustment mechanism includes a movable plate, which is inserted into the top of the clamping plate, and the outer wall of the movable plate is provided with several limiting grooves.

[0008] Preferably, each of the plurality of limiting grooves is slidably connected with a sliding rod, and one end of each of the sliding rods passes through the transverse groove and is fixedly connected to a plurality of mounting frames respectively.

[0009] The adjustment mechanism also includes a mounting groove, which is formed through the outer wall of the clamping plate. A gear is rotatably connected inside the mounting groove via a shaft, and several toothed grooves are formed on the outer wall of the movable plate.

[0010] Preferably, the mounting groove meshes with several toothed grooves, and a motor is mounted on the outer wall of the clamping plate, with the motor output end connected to the gear.

[0011] Preferably, the outer wall of the mounting frame has a plurality of insertion holes, and a fixing nail is inserted into the insertion holes. The outer wall of the connecting pipe has a fixing hole, and the fixing hole matches the fixing nail.

[0012] Preferably, a connecting frame is fixedly connected to both outer side walls of the base plate, a crossbar is fixedly connected inside each of the two connecting frames, a slider is sleeved on the outside of each of the two crossbars, a movable groove is opened on the outer side wall of the slider, a retaining plate is inserted into the movable groove, and a return spring is installed between one end of the retaining plate and the inner wall of the movable groove.

[0013] Preferably, the outer wall of the connecting frame is provided with a plurality of slots, and the slots fit into the card plate.

[0014] Preferably, a vertical groove is formed on the upper surface of the slider, an iron plate is inserted inside the vertical groove, and a support spring is installed between the bottom end of the iron plate and the bottom end of the vertical groove.

[0015] Preferably, an electromagnet and a battery are fixedly connected to the outer walls of both clamps. The bottom surface of the electromagnet has a slot, and the iron plate fits into the slot. The output end of the battery is electrically connected to the input end of the electromagnet.

[0016] The outer wall of the base plate is provided with a control panel, and the outer wall of the control panel is equipped with a switch button, and the output terminal of the switch button is electrically connected to the input terminal of the battery.

[0017] The beneficial effects of this utility model are:

[0018] 1. In this utility model, the plastic mold is clamped by inflating airbags, which avoids scratches or deformation of the mold surface caused by traditional rigid clamps. It is especially suitable for mold processing with high precision or high surface finish requirements. The airbags can adaptively adjust the contact surface according to the shape of the mold to ensure uniform distribution of clamping force, effectively preventing mold damage caused by local stress concentration. Moreover, the spacing between each airbag is adjustable to adapt to plastic molds with different clamping requirements, effectively improving applicability.

[0019] 2. This utility model allows for convenient control of the electromagnet's attraction and fixation to the iron plate via a control panel and switch buttons. Combined with a slider, it enhances the clamping stability of the tooling fixture and prevents vibrations generated during processing from causing the fixture to loosen and affecting the clamping stability of the plastic mold. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the clamping plate in this utility model;

[0023] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 This is a schematic diagram of the structure of the movable plate and the clamping plate in this utility model;

[0025] Figure 5 This utility model Figure 4 Enlarged view of point B in the middle;

[0026] Figure 6 This is a partial structural schematic diagram of the connecting frame in this utility model;

[0027] Figure 7 This is a cross-sectional view of the slider in this utility model;

[0028] Figure 8 This is a schematic diagram of the slider and the locking block in this utility model.

[0029] The attached figures are labeled as follows:

[0030] 1. Base plate; 2. Clamping plate; 3. Cylinder; 4. Connecting frame; 5. Movable plate; 6. Limiting groove; 7. Horizontal groove; 8. Slide rod; 9. Gear; 10. Mounting groove; 11. Electromagnet; 12. Battery; 13. Connecting pipe; 14. Airbag; 15. Air filling pipe; 16. Fixing nail; 17. Mounting frame; 18. Slider; 19. Horizontal bar; 20. Iron plate; 21. Slot; 22. Movable groove; 23. Card plate; 24. Control panel; 25. Switch button; 26. Card slot. Detailed Implementation

[0031] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0032] A tooling fixture for processing plastic molds, as shown in the reference. Figures 1-8 The system includes a base plate 1, with two clamping plates 2 slidably connected to the upper surface of the base plate 1. Several mounting frames 17 are slidably connected to the outer walls of both clamping plates 2. Several connecting pipes 13 are installed inside each mounting frame 17. An airbag 14 is fixedly connected to one end of each connecting pipe 13. The airbag 14 is inflated via an air supply pipe 15, flexibly contacting the workpiece surface to avoid damage and adapt to irregular shapes. An air supply pipe 15 is fixedly connected to the outer wall of each connecting pipe 13, and a valve is installed on the outer wall of the air supply pipe 15. An adjustment mechanism is provided on both clamping plates 2. Cylinders 3 are installed on both outer walls of plate 1, and the output end of cylinder 3 is connected to clamp plate 2. A transverse groove 7 is opened through the outer wall of clamp plate 2. The adjustment mechanism includes a movable plate 5, which is inserted into the top position inside clamp plate 2. Several limiting grooves 6 are opened through the outer wall of movable plate 5. Sliding rods 8 are slidably connected inside the several limiting grooves 6. One end of several sliding rods 8 passes through the transverse groove 7 and is fixedly connected to several mounting frames 17 respectively. By moving the movable plate 5 up and down, the sliding rods 8 are driven to slide in the limiting grooves 6, thereby adjusting the position of mounting frame 17.

[0033] The adjustment mechanism also includes a mounting groove 10, which is formed through the outer wall of the clamping plate 2. A gear 9 is rotatably connected inside the mounting groove 10 via a shaft. Several toothed grooves are formed on the outer wall of the movable plate 5. The mounting groove 10 and several toothed grooves are meshed with each other. A motor is installed on the outer wall of the clamping plate 2, and the output end of the motor is connected to the gear 9. The gear 9 is driven by the motor and meshes with the toothed grooves on the side wall of the movable plate 5, causing the movable plate 5 to move up and down. The mounting frame 17 is linked with the movable plate 5 via a sliding rod 8 to adjust the spacing between each mounting frame 17, thereby adjusting the lateral spacing between each airbag 14.

[0034] The mounting frame 17 has several insertion holes on its outer wall, and fixing nails 16 are inserted into the insertion holes. The connecting tube 13 has fixing holes on its outer wall, and the fixing holes fit with the fixing nails 16. The fixing nails 16 are inserted into the fixing holes of the connecting tube 13 to ensure a stable connection.

[0035] In use, the plastic mold to be processed is placed on the base plate 1, positioned between the two clamping plates 2. The clamping plates 2 are driven by the cylinder 3 to move horizontally, causing each airbag 14 to press against the two outer side walls of the plastic mold, making flexible contact with the mold to avoid damage. It is adaptable to plastic molds of different shapes, and the contact surface of the airbag 14 can adaptively adjust according to the shape of the plastic mold to ensure uniform distribution of clamping force, effectively preventing damage to the plastic mold caused by local stress concentration. Furthermore, the motor can drive the gear 9 to rotate, which, in conjunction with the toothed grooves, drives the movable plate 5 to move downward, causing each sliding rod 8 to move relative to each limiting groove. The relative sliding within the 6-axis increases the spacing between the sliding rods 8, allowing for lateral adjustment of the spacing between the sliders 18. Furthermore, sliding within the connecting tube 13 adjusts the vertical spacing between the airbags 14. After adjustment, inserting the fixing pin 16 through the corresponding insertion hole fixes the position of the connecting tube 13 and the airbags 14. This allows for adjustment of the spacing between the airbags 14 to accommodate different clamping requirements of plastic molds. It prevents excessive deformation of the airbags 14 when clamping plastic molds requiring greater clamping force, which could lead to insufficient spacing and compression, thus affecting the clamping effect on the plastic mold and effectively improving applicability.

[0036] Both outer walls of the base plate 1 are fixedly connected to connecting frames 4. Both connecting frames 4 are fixedly connected to crossbars 19. Both crossbars 19 are fitted with sliders 18. The outer wall of the sliders 18 has a movable groove 22. A retaining plate 23 is inserted into the movable groove 22. A return spring is installed between one end of the retaining plate 23 and the inner wall of the movable groove 22. The outer wall of the connecting frame 4 has several slots 26, and the slots 26 fit with the retaining plate 23. The sliders 18 are fitted on the crossbars 19 and can slide horizontally. The sliders 18 are engaged and fixed with the slots 26 on the connecting frame 4 by the retaining plate 23. The return spring ensures a tight engagement.

[0037] A vertical groove is provided on the upper surface of the slider 18, and an iron plate 20 is inserted into the groove. A support spring is installed between the bottom end of the iron plate 20 and the bottom end of the vertical groove. Electromagnets 11 and batteries 12 are fixedly connected to the outer walls of the two clamping plates 2. A slot 21 is provided on the bottom surface of the electromagnet 11, and the iron plate 20 fits into the slot 21. The output end of the battery 12 is electrically connected to the input end of the electromagnet 11. A control panel 24 is provided on the outer wall of the base plate 1. A switch button 25 is installed on the outer wall of the control panel 24, and the output end of the switch button 25 is electrically connected to the input end of the battery 12. The iron plate 20 can move up and down under the action of the support spring and fit into the slot 21 of the electromagnet 11 on the clamping plate 2, so as to realize the quick positioning and fixation of the clamping plate 2. The energization state of the electromagnet 11 can be controlled by the control panel 24 and the switch button 25. When energized, the electromagnet 11 attracts the iron plate 20, which enhances the clamping stability of the clamping plate 2 on the plastic mold. When de-energized, the iron plate 20 is reset under the action of the spring.

[0038] Specifically, after clamping the plastic mold, the slider 18 is moved along the outside of the crossbar 19 to a position directly below the electromagnet 11. At this time, pressing the switch button 25 can energize the electromagnet 11 through the battery 12, causing the electromagnet 11 to generate magnetic attraction, attracting the iron plate 20. This allows the upper end of the iron plate 20 to be inserted into the slot 21, achieving rapid fixation of the clamping plate 2 and further enhancing the stability of the clamping plate 2. This provides a more stable clamping and fixing of the plastic mold, preventing vibration from subsequent processing from reducing clamping stability. When the slider 18 moves, the clamping plate 23 moves with the slider 18 and, driven by the slider 18, moves along the inner wall of the slot 26 and gradually moves into the movable slot 22, releasing the fixation between the slider 18 and the connecting frame 4. After the slider 18 is moved to the desired position, the return spring force allows one end of the clamping plate 23 to be inserted into the corresponding slot 26, completing the fixation of the slider 18.

[0039] 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 claimed utility model.

Claims

1. A tooling fixture for processing plastic molds, comprising a base plate (1), characterized in that, The upper surface of the base plate (1) is slidably connected to two clamping plates (2). The outer walls of the two clamping plates (2) are slidably connected to several mounting frames (17). Several connecting pipes (13) are provided inside the several mounting frames (17). One end of each of the several connecting pipes (13) is fixedly connected to an airbag (14). An air filling pipe (15) is fixedly connected to the outer wall of the connecting pipe (13). A valve is installed on the outer wall of the air filling pipe (15). An adjustment mechanism is provided on both clamping plates (2). Cylinders (3) are installed on both outer walls of the base plate (1). The output end of the cylinders (3) is connected to the clamping plates (2). A transverse groove (7) is opened through the outer wall of the clamping plates (2). The adjustment mechanism includes a movable plate (5), which is inserted into the top of the clamping plate (2), and the outer wall of the movable plate (5) is provided with several limiting grooves (6).

2. The tooling fixture for processing plastic molds according to claim 1, characterized in that, Each of the limiting grooves (6) is slidably connected with a sliding rod (8), and one end of each sliding rod (8) passes through the transverse groove (7) and is fixedly connected to a number of mounting frames (17); The adjustment mechanism also includes a mounting groove (10), which is opened through the outer wall of the clamping plate (2). A gear (9) is rotatably connected inside the mounting groove (10) via a shaft. Several toothed grooves are opened on the outer wall of the movable plate (5).

3. The tooling fixture for processing plastic molds according to claim 2, characterized in that, The mounting groove (10) meshes with several toothed grooves. A motor is mounted on the outer wall of the clamping plate (2), and the output end of the motor is connected to the gear (9).

4. The tooling fixture for processing plastic molds according to claim 3, characterized in that, The mounting frame (17) has several insertion holes on its outer wall, and fixing nails (16) are inserted into the insertion holes. The connecting pipe (13) has fixing holes on its outer wall, and the fixing holes are matched with the fixing nails (16).

5. A tooling fixture for processing plastic molds according to any one of claims 1 to 4, characterized in that, The base plate (1) has connecting frames (4) fixedly connected to both outer side walls. The two connecting frames (4) have crossbars (19) fixedly connected inside. The two crossbars (19) are fitted with sliders (18) on the outside. The sliders (18) have movable grooves (22) on their outer side walls. The movable grooves (22) have card plates (23) inserted inside. One end of the card plates (23) is fitted with a return spring between it and the inner wall of the movable grooves (22).

6. The tooling fixture for processing plastic molds according to claim 5, characterized in that, The outer wall of the connecting frame (4) is provided with a plurality of slots (26), and the slots (26) are fitted with the card plate (23).

7. The tooling fixture for processing plastic molds according to claim 6, characterized in that, The upper surface of the slider (18) is provided with a vertical groove, and an iron plate (20) is inserted inside the vertical groove. A support spring is installed between the bottom end of the iron plate (20) and the bottom end of the vertical groove.

8. The tooling fixture for processing plastic molds according to claim 7, characterized in that, Electromagnets (11) and batteries (12) are fixedly connected to the outer walls of the two clamps (2). The bottom surface of the electromagnet (11) is provided with a slot (21), and the iron plate (20) fits into the slot (21). The output end of the battery (12) is electrically connected to the input end of the electromagnet (11). The outer wall of the base plate (1) is provided with a control panel (24), and the outer wall of the control panel (24) is equipped with a switch button (25), and the output end of the switch button (25) is electrically connected to the input end of the battery (12).