Injection molding part production jig

By designing a fixture for injection molding parts production, the automatic installation of copper nuts is realized by combining the pressing assembly and the copper nut positioning column, solving the problems of low manual installation efficiency and poor accuracy, and improving production efficiency and product quality.

CN223013737UActive Publication Date: 2025-06-24HUIZHOU YUANZHI PRECISION COMPONENTS CO LTD
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Patent Information

Application Number
CN202421441841.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-24
Publication Date
2025-06-24
Estimated Expiration
2034-06-24

AI Technical Summary

Technical Problem

During the production process of injection molded parts, manual installation of copper nuts has problems such as low working efficiency, poor accuracy, complex operation, and possible damage to the structure of injection molded parts.

Method used

A injection molded parts production fixture is designed, including a pressing assembly, a fixing top, a fixing base and a copper nut positioning column. By pushing the pressing handle to move the pressing plate and the copper nut positioning column downward, the automatic installation of copper nut is achieved.

Benefits of technology

Improves work efficiency and accuracy, simplifies operation, enhances stability, improves yield, and strengthens the practicality of the fixture.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an injection molding part production jig, which relates to the technical field of tooling jigs, and comprises a pressing assembly, a fixed upper seat, a fixed base and a plurality of copper nut positioning columns, the fixed upper seat is fixed on the fixed base, a movable groove is arranged in the fixed upper seat, and the copper nut positioning columns are arranged in the movable groove. The pressing assembly comprises a pressing handle, a pressing plate and a plurality of pressing supporting columns, the pressing handle is connected with the pressing plate, the pressing plate and the pressing supporting columns are both located in the movable groove, the upper ends of the pressing supporting columns are connected with the pressing plate, the lower ends of the pressing supporting columns are movably connected with the fixed base, and the pressing supporting columns are sleeved with reset springs. The upper end of the copper nut positioning column is connected with the fixed upper base, the lower end of the copper nut positioning column movably penetrates through the pressing plate and the fixed base to extend downwards, and a positioning part is arranged at the lower end of the copper nut positioning column. The device has the advantages of high working efficiency, high accuracy, simplicity in operation, good stability, high yield, high practicability and the like.
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Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures, and particularly relates to an injection part production fixture. Background Art

[0002] At present, the outer shells of most household electrical appliances on the market are made of injection parts. These outer shells need to be connected to internal skeletons, supports or other parts. Therefore, when injecting, the method of setting BOSS columns on their inner sides is mostly adopted. Installation holes in the BOSS columns need to be provided with copper nuts to facilitate subsequent threaded connections. When injecting, the general operation method is to manually install the copper nuts in the installation holes of the injection parts. However, the space in the installation holes is narrow, and the fatigue degree of workers is high. The operation method of manually installing copper nuts has problems such as low work efficiency, difficulty in placing them in place, and damage to the organizational structure of the injection parts when the operation is improper. Therefore, an injection part production fixture is needed to improve the above problems. Content of the Utility Model

[0003] The purpose of the utility model is to provide an injection part production fixture, aiming to solve the above technical problems. The utility model has the advantages of high work efficiency, high precision, simple operation, good stability, improvement of the qualified product rate and strong practicability.

[0004] In order to achieve the above purpose, the utility model is realized through the following technical solutions:

[0005] An injection part production fixture includes a pressing component, a fixed upper seat, a fixed base and a plurality of copper nut positioning columns. The lower end of the fixed upper seat is connected to the fixed base. An activity groove is arranged inside the fixed upper seat. The pressing component includes a pressing handle, a pressing plate and a plurality of pressing support columns. The lower end of the pressing handle is connected to the pressing plate. The pressing plate and the pressing support columns are both located in the activity groove. The upper end of the pressing support column is connected to the pressing plate, and its lower end is movably connected to the fixed base. A return spring is sleeved on the pressing support column. The upper end of the copper nut positioning column is connected to the fixed upper seat, and its lower end movably passes through the pressing plate and the fixed base and extends downward. A positioning part for placing the copper nut is arranged at the lower end of the copper nut positioning column. When the pressing handle is pressed down, the pressing plate can drive the copper nut positioning column to move downward, so as to inject the copper nut onto the workpiece.

[0006] Preferably, upper seat connection parts are symmetrically arranged at the lower end of the fixed upper seat, and the lower end surface of the upper seat connection part is connected to the upper end surface of the fixed base.

[0007] Preferably, an upper abutting groove is arranged at the lower end of the pressing plate, a lower abutting groove is arranged at the upper end of the fixed base, the upper end of the return spring is located in the upper abutting groove, the lower end of the return spring is located in the lower abutting groove, and a pressing plate positioning hole is arranged inside the pressing plate.

[0008] Preferably, a concave first guiding groove is provided on the outer side of the upper fixing seat, a detachable cover plate is provided on the upper fixing seat, and a concave second guiding groove is provided on the outer side of the cover plate.

[0009] Preferably, a guiding sliding rail is provided on the inner side of the pressing handle. When the pressing handle is pressed or lifted, the guiding sliding rail can move up and down along the first guiding groove and the second guiding groove.

[0010] Preferably, an upper seat assembly hole and an upper seat positioning hole are provided in the upper fixing seat, and a limiting installation groove is provided at the lower end of the upper fixing seat.

[0011] Preferably, a base assembly hole, a base positioning hole, and a limiting upper hole are provided in the fixed base. The upper seat assembly hole is communicated with the base assembly hole, and a fastener can be used to pass through the upper seat assembly hole into the base assembly hole to improve the connection between the upper fixing seat and the fixed base.

[0012] Preferably, a plurality of protruding limiting parts are provided at the lower end of the fixed base, a limiting lower hole is provided in the limiting part, and the limiting lower hole, the limiting upper hole, and the limiting installation groove are communicated with each other.

[0013] Preferably, a positioning sleeve is further included. The positioning sleeve is sleeved on the copper nut positioning column. The upper end of the positioning sleeve is fixed in the pressing plate, and its lower end passes through the pressing plate and the fixed base and extends downward. The upper end of the copper nut positioning column is fixed in the upper fixing seat, and its lower end passes through the positioning sleeve and extends downward.

[0014] Preferably, a limiting column is further included. The upper end of the limiting column is located in the limiting installation groove of the upper fixing seat, and the lower end of the limiting column sequentially passes through the limiting upper hole and the limiting lower hole and extends downward.

[0015] The injection molding part production fixture of the present utility model has the following beneficial effects:

[0016] When the injection molding part production fixture of the present utility model is in use, the staff installs the copper nut on the positioning part of the copper nut positioning column, then places the workpiece on the rear mold of the mold, and then inserts the limiting column into the limiting hole of the workpiece to fix the position of the workpiece. Then, the pressing handle is pressed. At this time, the pressing plate moves downward and the return spring is compressed. The pressing plate drives the copper nut on the positioning part to move downward, so as to push the copper nut into the installation hole of the workpiece, and the copper nut is tightly and accurately installed in the installation hole of the workpiece. When the pressing handle is released, the return spring resets and drives the copper nut positioning column to move upward and reset, and the copper nut installation process of one workpiece can be completed. Compared with manual installation of the copper nut, the present utility model has the advantages of high working efficiency, high precision, simple operation, good stability, improved product qualification rate, and strong practicability. Description of the Drawings

[0017] Figure 1 is the overall structural schematic diagram of the present utility model;

[0018] Figure 2 is the schematic diagram of the disassembled structure of the present utility model Figure 1 ;

[0019] Figure 3 is the schematic diagram of the disassembled structure of the present utility model Figure 2 ;

[0020] Figure 4 is the schematic diagram of the sectional structure of the present utility model Figure 1 ;

[0021] Figure 5 is the schematic diagram of the sectional structure of the present utility model Figure 2 . Specific embodiments

[0022] In order to enable those skilled in the art of the present technology to better understand the technical solutions of the present utility model, the products of the present utility model will be further described in detail below in conjunction with embodiments and the accompanying drawings.

[0023] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there can also be an intermediate element; when an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0025] Such as Figures 1 to 3As shown in the figure, an injection molding part production fixture includes a pressing component 1, a fixed upper seat 2, a fixed base 3, and several copper nut positioning columns 4. The lower end of the fixed upper seat 2 is connected to the fixed base 3. An activity groove 5 is provided inside the fixed upper seat 2. The pressing component 1 includes a pressing handle 6, a pressing plate 7, and several pressing support columns 8. The lower end of the pressing handle 6 is connected to the pressing plate 7. Both the pressing plate 7 and the pressing support columns 8 are located inside the activity groove 5. The upper end of the pressing support column 8 is connected to the pressing plate 7, and its lower end is movably connected to the fixed base 3. A return spring 9 is sleeved on the pressing support column 8. The upper end of the copper nut positioning column 4 is connected to the fixed upper seat 2, and its lower end movably passes through the pressing plate 7 and the fixed base 3 and extends downward. A positioning portion 10 for placing a copper nut 11 is provided at the lower end of the copper nut positioning column 4. When the pressing handle 6 is pressed down, the pressing plate 7 can drive the copper nut positioning column 4 to move downward, thereby injecting the copper nut 11 onto the workpiece.

[0026] As Figure 3 shown, symmetric upper seat connection portions 12 are provided at the lower end of the fixed upper seat 2, and the lower end surface of the upper seat connection portion 12 is connected to the upper end surface of the fixed base 3.

[0027] As Figure 2 and Figure 3 shown, an upper abutting groove 13 is provided at the lower end of the pressing plate 7, a lower abutting groove 14 is provided at the upper end of the fixed base 3. The upper end of the return spring 9 is located inside the upper abutting groove 13, and the lower end of the return spring 9 is located inside the lower abutting groove 14. A pressing plate positioning hole is provided inside the pressing plate 7.

[0028] It should be noted that by providing the return spring 9, when the pressing plate 7 is pressed downward, the return spring 9 is compressed. After the pressing plate 7 is released, the return spring 9 resets, causing the pressing plate 7 to automatically move upward and reset, thus completing the process of installing the copper nut 11 on one workpiece. It is time-saving, labor-saving, fast, efficient, and has good operation stability. The number of return springs 9 in this embodiment is multiple, which improves the elastic force during reset and has good stability.

[0029] As Figure 2 shown, handle connection portions 15 are provided at both ends of the pressing plate 7. The handle connection portions 15 are located outside the activity groove 5, and the lower end of the pressing handle 6 is connected to the handle connection portion 15.

[0030] As Figure 3 shown, a concave first guiding groove 16 is provided on the outside of the fixed upper seat 2. A detachable cover plate 17 is provided on the fixed upper seat 2, and a concave second guiding groove 18 is provided on the outside of the cover plate 17.

[0031] As Figure 3As shown, a guiding slide rail 19 is provided inside the pressing handle 6. The lower end of the guiding slide rail 19 is connected to a pressing plate 7. When the pressing handle 6 is pressed or lifted, the guiding slide rail 19 can move up and down along the first guiding groove 16 and the second guiding groove 18.

[0032] It should be noted that when the pressing plate 7 is pressed, through the cooperation among the guiding slide rail 19, the first guiding groove 16 and the second guiding groove 18, the pressing plate 7 can move up and down stably, avoiding position deviation.

[0033] As Figure 2 and Figure 3 shown, an upper seat assembly hole 20 and an upper seat positioning hole are provided inside the fixed upper seat 2. A limiting installation groove 21 is provided at the lower end of the fixed upper seat 2.

[0034] As Figure 2 and Figure 3 shown, a base assembly hole 22, a base positioning hole 23 and a limiting upper hole are provided inside the fixed base 3. The upper seat assembly hole 20 communicates with the base assembly hole 22. Fasteners can be passed through the upper seat assembly hole 20 into the base assembly hole 22 to improve the connection between the fixed upper seat 2 and the fixed base 3. The fasteners in this embodiment are common fastening components such as screws or bolts.

[0035] As Figure 2 and Figure 3 shown, a plurality of protruding limiting parts 24 are provided at the lower end of the fixed base 3. A limiting lower hole is provided inside the limiting part 24. The limiting lower hole, the limiting upper hole and the limiting installation groove 21 communicate with each other.

[0036] As Figure 2 and Figure 3 shown, a limiting column 25 is further included. The upper end of the limiting column 25 is located inside the limiting installation groove 21 of the fixed upper seat 2, and the lower end of the limiting column 25 sequentially passes through the limiting upper hole and the limiting lower hole and extends downward.

[0037] As Figure 2 and Figure 3 shown, a positioning sleeve 26 is further included. The positioning sleeve 26 is sleeved on the copper nut positioning column 4. The upper end of the positioning sleeve 26 is fixed in the pressing plate positioning hole of the pressing plate 7, and its lower end passes through the pressing plate 7 and the base positioning hole 23 of the fixed base 3 and extends downward. The upper end of the copper nut positioning column 4 is fixed in the upper seat positioning hole of the fixed upper seat 2, and its lower end passes through the positioning sleeve 26 and extends downward.

[0038] As Figures 1 to 5 shown, the working principle of the present utility model is as follows:

[0039] During use, the staff installs the copper nut 11 on the positioning portion 10 of the copper nut positioning post 4, then places the workpiece (the workpiece in this embodiment is the battery compartment front shell) on the rear mold of the mold, and then inserts the limit post 25 into the limit hole of the workpiece to fix the position of the workpiece. Then, the pressing handle 6 is pressed. At this time, the pressing plate 7 moves downward and the return spring 9 is compressed. The pressing plate 7 drives the copper nut 11 on the positioning portion 10 to move downward, thereby pushing the copper nut 11 into the installation hole of the workpiece, and realizing the tight and accurate installation of the copper nut 11 in the installation hole of the workpiece;

[0040] When the pressing handle 6 is released, the return spring 9 is reset, driving the copper nut positioning post 4 to move upward and reset, and thus the process of installing the copper nut 11 on one workpiece can be completed. It has a fast speed, high efficiency and good operation stability.

[0041] The above is only a preferred embodiment of the present invention, and does not impose any form of limitation on the present invention; any ordinary technician in the industry can smoothly implement the present invention according to the illustrations in the specification and the above description; however, any minor changes, modifications and equivalent variations made by those skilled in the art within the scope of the technical solution of the present invention by using the technical content disclosed above are all equivalent embodiments of the present invention; at the same time, any equivalent changes, modifications and variations made to the above embodiments based on the essential technology of the present invention still belong to the technical solution of the present invention.

Claims

1. A jig for producing injection molded parts, characterized in that: The invention comprises a pressing assembly, a fixed upper seat, a fixed base and several copper nut positioning columns, the lower end of the fixed upper seat is connected to the fixed base, a movable groove is provided in the fixed upper seat, the pressing assembly comprises a pressing handle, a pressing plate and several pressing support columns, the lower end of the pressing handle is connected to the pressing plate, the pressing plate and the pressing support column are both located in the movable groove, the upper end of the pressing support column is connected to the pressing plate, and the lower end thereof is movably connected to the fixed base, a return spring is sleeved on the pressing support column, the upper end of the copper nut positioning column is connected to the fixed upper seat, and the lower end thereof movably passes through the pressing plate and the fixed base to extend downward, the lower end of the copper nut positioning column is provided with a positioning portion for placing the copper nut, and when the pressing handle is pressed, the pressing plate can drive the copper nut positioning column to move downward, so as to injection mold the copper nut onto the workpiece.

2. The injection molded parts production jig according to claim 1, characterized in that: An upper seat connecting portion is symmetrically arranged at the lower end of the fixed upper seat, and the lower end surface of the upper seat connecting portion is connected to the upper end surface of the fixed base.

3. The injection molded parts production jig according to claim 2, characterized in that: The lower end of the pressing plate is provided with an upper abutment groove, the upper end of the fixed base is provided with a lower abutment groove, the upper end of the reset spring is located in the upper abutment groove, the lower end of the reset spring is located in the lower abutment groove, and a pressing plate positioning hole is provided in the pressing plate.

4. The injection molded parts production jig according to claim 3, characterized in that: A first concave guide groove is arranged on the outer side of the fixed upper seat, a detachable cover plate is arranged on the fixed upper seat, and a second concave guide groove is arranged on the outer side of the cover plate.

5. The injection molded parts production jig according to claim 4, characterized in that: A guide rail is provided on the inner side of the pressing handle. When the pressing handle is pressed or lifted, the guide rail can move up and down along the first guide groove and the second guide groove.

6. The injection molded parts production jig according to claim 5, characterized in that: An upper seat assembly hole and an upper seat positioning hole are arranged in the fixed upper seat, and a limiting installation groove is arranged at the lower end of the fixed upper seat.

7. The injection molded parts production jig according to claim 6, characterized in that: The fixed base is provided with a base assembly hole, a base positioning hole, and a limiting upper hole. The upper seat assembly hole is connected to the base assembly hole. A fastener can be used to pass through the upper seat assembly hole into the base assembly hole to improve the connection between the fixed upper seat and the fixed base.

8. The injection molded parts production jig according to claim 7, characterized in that: A plurality of raised limiting parts are arranged at the lower end of the fixed base, and lower limiting holes are arranged in the limiting parts. The lower limiting holes, the upper limiting holes and the limiting installation grooves are connected.

9. The injection molded parts production jig according to claim 8, characterized in that: It also includes a positioning sleeve, which is sleeved on the copper nut positioning column. The upper end of the positioning sleeve is fixed in the pressing plate, and the lower end thereof extends downward through the pressing plate and the fixed base. The upper end of the copper nut positioning column is fixed in the fixed upper seat, and the lower end thereof extends downward through the positioning sleeve.

10. The injection molded parts production jig according to claim 9, characterized in that: It also includes a limiting column, the upper end of which is located in a limiting installation groove of the fixed upper seat, and the lower end of which passes through the limiting upper hole and the limiting lower hole in sequence to extend downward.