Pin assembling jig with limiting requirement

By designing assembly pin-type fixtures with limited positioning requirements, and using components such as cylinder-driven pin insertion and infrared induction material shortage sensors, semi-automatic assembly of small structural parts has been achieved, solving the problems of low efficiency, high strength, and poor quality in existing technologies, and improving production efficiency and safety.

CN224223231UActive Publication Date: 2026-05-12TK GRP (HLDG) LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TK GRP (HLDG) LTD
Filing Date
2025-05-16
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing technologies have low assembly efficiency for small structural components, which are prone to being scrapped due to uneven installation. Furthermore, manual assembly is labor-intensive and difficult to automate.

Method used

A pin assembly fixture with limited positioning requirements was designed, comprising a product positioning module, a pressing module, a pin limiting and blocking module, and a pin punching module. It uses a cylinder to drive the pins for precise assembly and is equipped with an infrared material shortage sensor and a safety light curtain to achieve semi-automatic operation.

Benefits of technology

It improves assembly efficiency, reduces manual labor intensity, decreases product damage rate and production costs, and ensures assembly quality and operational safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of jigs, particularly relates to a pin assembling jig with a limiting requirement, and aims to solve the problems that when one product is manually assembled at a time, the efficiency is low, and products are extremely easy to scrap due to uneven sizes of gaps on two sides after installation. In order to solve the problems that in the prior art, in the prior art, assembling is carried out when large force is needed, the working strength is high, and the efficiency and the quality are extremely low, the following scheme is provided that a control box is included, a product positioning module is fixed to the top of the control box through bolts, and a to-be-assembled product A and a to-be-assembled product B are placed in a groove in the top of the product positioning module. According to the utility model, a semi-automatic assembly mode is adopted, so that the physical labor intensity of operators is greatly reduced, and the production efficiency is remarkably improved; by means of the accurate guiding and positioning design of the pin positioning bin and the stable action of the pin limiting and blocking module and the pin punching and assembling module, the installation position deviation is avoided, collision and friction of pins to products are reduced, and therefore the yield of the products is increased, and the production cost is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of jig technology, and in particular to an assembly pin jig with limited positioning requirements. Background Technology

[0002] When assembling pins for specific small structural components, the assembly requires that the pivot distance on both sides be evenly distributed. After assembly, it must not be misaligned, the pivot must not be damaged, and the product surface must not be scratched. This assembly requires high efficiency and quality, and the order volume cannot support the development of automation. Currently, one product is assembled manually at a time, which is inefficient and easily leads to product scrap due to uneven clearance on both sides after installation. Moreover, a lot of force is required for assembly, resulting in high labor intensity and extremely low efficiency and quality.

[0003] To address the aforementioned problems, this utility model document proposes an assembly pin-type fixture with limited positioning requirements. Utility Model Content

[0004] This utility model provides an assembly pin-type fixture with limited positioning requirements, which solves the shortcomings of the prior art, such as low efficiency, easy product scrapping due to uneven gap size on both sides after installation, and the need for great force to assemble, resulting in high labor intensity and extremely low efficiency and quality.

[0005] This utility model provides the following technical solution:

[0006] A pin-type assembly fixture with limited positioning requirements, comprising:

[0007] A control box has a product positioning module fixed to its top by bolts. Products A and B to be assembled are placed in a groove on the top of the product positioning module. A mounting bracket is fixedly installed on the top of the control box. A pressing module for pressing products A and B is fixedly installed on one side of the mounting bracket. A pin positioning chamber is provided on one side of the product positioning module. The bottom of the pin positioning chamber is fixedly connected to the top of the control box. A pin body is placed in the cavity of the pin positioning chamber. One end of the pin body is aligned with the pin mounting holes on both sides of the product positioning module.

[0008] The top of the control box is fixedly equipped with a pin limiting and blocking module and a pin punching module, which are located on both sides of the product positioning module.

[0009] In one possible design, the cylinder output end of the pin limiting blocking module is fixedly provided with a pin for limiting the pin, and the cylinder output end of the pin punching module is fixedly provided with another pin for ejecting the pin body from the pin positioning chamber for assembly. Both pins are aligned with the pin mounting holes on the product positioning module.

[0010] In one possible design, the pin positioning chamber is equipped with an infrared induction material shortage sensor to prevent missing parts.

[0011] In one possible design, two safety light curtains are symmetrically fixedly installed on the inner wall of the mounting bracket.

[0012] In one possible design, the product positioning module is made entirely of ABS.

[0013] In one possible design, a silicone pressure head is fixedly installed at the cylinder output end of the pressure module.

[0014] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the present invention.

[0015] The working principle and usage process of this technical solution are as follows:

[0016] During use, the operator places product A and product B into the groove at the top of the product positioning module in sequence. Then, the PC pin body is placed into the positioning slot along the guide of the pin positioning chamber. Press the start button, and the fixture starts to run. The cylinder output end of the pressing module extends, driving the silicone pressure head to move downward, pressing product A and product B to ensure that the products do not move during the assembly process.

[0017] The cylinder output end of the pin limiting and blocking module extends, driving the pin used to limit the pin to the right to the designated position, limiting the pin body and ensuring the positional accuracy of the pin body in the subsequent assembly process. The cylinder output end of the pin punching module extends, driving the pin used to push the pin body out of the pin positioning chamber for assembly to the left, pushing the pin body in the pin positioning chamber to drive the pin body into the mounting hole on the product positioning module, completing the pin assembly. After assembly, the cylinder output ends of the pressing module, the pin limiting and blocking module, and the pin punching module retract, returning to their initial positions. The operator takes out the assembled product and then proceeds to the next cycle.

[0018] This utility model has the following beneficial effects:

[0019] This invention adopts a semi-automatic assembly method. Operators only need to complete simple loading and unloading operations, while the rest of the assembly is done by the machine. This greatly reduces the physical labor intensity of operators, shortens the assembly time of a single product, and significantly improves production efficiency.

[0020] The cylinder output end of the lower pressure module in this utility model uses a silicone pressure head to avoid damage to the product surface due to excessive pressure. At the same time, the precise guidance and positioning design of the pin positioning chamber, as well as the stable operation of the pin limit blocking module and the pin punching module, avoid product scrapping due to installation position deviation, and also reduce the collision and friction of the pins on the product during assembly. This reduces the damage rate of the product during assembly, improves the product yield, and reduces production costs.

[0021] The infrared sensor for detecting missing parts installed in the pin positioning compartment of this invention effectively prevents the occurrence of missing pins and further ensures the assembly quality of the product.

[0022] In this invention, two safety light curtains symmetrically fixed on the inner wall of the mounting frame can monitor in real time whether the operator enters the danger zone. When an object is detected entering, the safety light curtain will immediately send a signal to stop the fixture from running, effectively avoiding safety accidents caused by operator misoperation during machine operation and ensuring the personal safety of the operator. Attached Figure Description

[0023] Figure 1 A three-dimensional structural schematic diagram of an assembly pin-type fixture with limited positioning requirements provided in an embodiment of this utility model;

[0024] Figure 2 A schematic diagram of the internal structure of a mounting bracket for an assembly pin-type fixture with limited positioning requirements provided in an embodiment of this utility model;

[0025] Figure 3 A schematic diagram of the product positioning module and product separation structure of an assembly pin-type fixture with limited positioning requirements provided for an embodiment of this utility model;

[0026] Figure 4 A partial cross-sectional view of the pin installation structure of an assembly pin-type fixture with limited positioning requirements provided in an embodiment of this utility model;

[0027] Figure 5 This is a flowchart illustrating the process of an assembly pin-type fixture with limited positioning requirements provided in an embodiment of the present invention.

[0028] Reference numerals: 1. Control box; 2. Mounting bracket; 3. Product positioning module; 4. Product A; 5. Product B; 6. Pin body; 7. Pressing module; 8. Pin positioning chamber; 9. Pin limit blocking module; 10. Pin punching module; 11. Safety light curtain. Detailed Implementation

[0029] 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.

[0030] In the description of this utility model, it should be understood that the terms "opening", "upper", "middle", "length", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.

[0032] Example 1

[0033] Please refer to Figure 1-5 A jig, comprising a control box 1, a mounting bracket 2, a product positioning module 3, a pressing module 7, a pin positioning chamber 8, a pin limiting and blocking module 9, a pin punching module 10, and a safety light curtain 11, etc.

[0034] The control box 1 serves as the support and control core of the entire fixture. A product positioning module 3 is bolted to its top. The product positioning module 3 is made of ABS, a material with good strength and wear resistance, and relatively low cost. The top of the product positioning module 3 has a groove for placing products A4 and B5 to be assembled. A pin positioning chamber 8 is located on one side of the product positioning module 3. The bottom of the pin positioning chamber 8 is fixedly connected to the top of the control box 1. Its cavity is used to hold the pin body 6, with one end of the pin body 6 aligned with the pin mounting holes on both sides of the product positioning module 3. During loading, workers place products A4 and B5 into the groove on top of the product positioning module 3, and then guide the pin body 6 into the positioning slot along the pin positioning chamber 8 for subsequent assembly.

[0035] Mounting bracket 2 is fixedly installed on the top of control box 1, located on one side of product positioning module 3. Pressing module 7 is fixedly installed on one side of mounting bracket 2. A silicone pressure head is fixedly installed at the cylinder output end of the module. The silicone pressure head has a certain elasticity, which can press product A4 and product B5 while avoiding damage to the product surface. After the fixture starts to run, the cylinder output end of pressing module 7 extends, driving the silicone pressure head to move downward, pressing product A4 and product B5, and ensuring that the products will not move during assembly.

[0036] The pin limiting and blocking module 9 and the pin punching module 10 are respectively fixedly installed on the top of the control box 1 and located on both sides of the product positioning module 3. The cylinder output end of the pin limiting and blocking module 9 is fixedly provided with a pin for limiting the pin. When the cylinder output end of the pin limiting and blocking module 9 extends, it drives the pin for limiting the pin to the right to a designated position, limiting the pin body 6 and ensuring the positional accuracy of the pin body 6 in the subsequent assembly process. The cylinder output end of the pin punching module 10 is fixedly provided with another pin for pushing the pin body 6 out of the pin positioning chamber 8 for assembly. Both pins are aligned with the pin mounting holes on the product positioning module 3. When the cylinder output end of the pin punching module 10 extends, it drives the pin for pushing the pin body 6 out of the pin positioning chamber 8 for assembly to the left, pushing the pin body 6 in the pin positioning chamber 8 to move and drive the pin body 6 into the mounting hole on the product positioning module 3, completing the pin assembly.

[0037] The pin positioning chamber 8 is also equipped with an infrared sensing material shortage sensor. This sensor can detect in real time whether there is a pin body 6 in the pin positioning chamber 8. Once it is sensed that there is no pin, the machine cannot run to prevent the problem of missing pins.

[0038] This application can be used for assembly pins with limited positioning requirements, or for other fields applicable to this application.

[0039] Example 2

[0040] Improvements based on Example 1:

[0041] An assembly pin-type fixture with limited positioning requirements, which is used in the field of fixtures;

[0042] Please refer to Figure 1 Two safety light curtains 11 are symmetrically fixed on the inner wall of the mounting frame 2. The safety light curtains 11 are used to detect whether the operator has entered the danger zone. When an object is detected to have entered, the operation of the fixture can be stopped in time to ensure the safety of the operator.

[0043] However, as is well known to those skilled in the art, the working principles and wiring methods of the pressure module 7, the pin limit blocking module 9, the pin punching module 10 and the safety light curtain 11 are commonplace and belong to conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0044] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0045] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. In the absence of conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A pin-type assembly fixture with limited positioning requirements, characterized in that, include: A control box (1) is provided. A product positioning module (3) is fixed to the top of the control box (1) by bolts. Product A (4) and product B (5) to be assembled are placed in the groove on the top of the product positioning module (3). A mounting bracket (2) is fixedly provided on the top of the control box (1). A pressing module (7) for pressing product A (4) and product B (5) is fixedly provided on one side of the mounting bracket (2). A pin positioning chamber (8) is provided on one side of the product positioning module (3). The bottom of the pin positioning chamber (8) is fixedly connected to the top of the control box (1). A pin body (6) is placed in the cavity of the pin positioning chamber (8). One end of the pin body (6) is aligned with the pin mounting holes on both sides of the product positioning module (3). The top of the control box (1) is fixedly provided with a pin limiting blocking module (9) and a pin punching module (10), which are located on both sides of the product positioning module (3).

2. The assembly pin-type fixture with limited positioning requirements according to claim 1, characterized in that, The cylinder output end of the pin limiting blocking module (9) is fixedly provided with a pin for limiting the pin, and the cylinder output end of the pin punching module (10) is fixedly provided with another pin for pushing the pin body (6) out of the pin positioning chamber (8) for assembly. Both pins are aligned with the pin mounting holes on the product positioning module (3).

3. A pin-type assembly fixture with limited positioning requirements according to claim 1, characterized in that, The pin positioning compartment (8) is equipped with an infrared induction material shortage sensor to prevent missing parts.

4. A pin-type assembly fixture with limited positioning requirements according to claim 1, characterized in that, Two safety light curtains (11) are symmetrically fixed on the inner wall of the mounting bracket (2).

5. A pin-type assembly fixture with limited positioning requirements according to claim 1, characterized in that, The product positioning module (3) is made of ABS.

6. A pin-type assembly fixture with limited positioning requirements according to claim 1, characterized in that, The cylinder output end of the pressure module (7) is fixedly equipped with a pressure head made of silicone material.