A modular rental quick-change fixture

By incorporating through holes, columns, and slider structures in the modular fixture, combined with lead screws and rubber pads, the stability and accuracy issues caused by loosening and deformation of the modular fixture are resolved, resulting in higher assembly stability and connection strength.

CN224445735UActive Publication Date: 2026-07-03YANTAI XINDEL GEAR CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANTAI XINDEL GEAR CO LTD
Filing Date
2025-08-14
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

After prolonged use, modular interchangeable fixtures may experience a decrease in overall strength due to loosening or deformation at the module connections, which affects workpiece clamping stability and machining accuracy.

Method used

Through holes are provided in the base, mounting plate and fixture seat of the modular fixture, and columns pass through these through holes to assist in fixation. Combined with the screw and slider structure, the stability and strength of the module connection are enhanced, and rubber pads and bumps are used to improve friction and buffering effect.

Benefits of technology

This improves the assembly stability and connection strength of modular fixtures, reduces the chance of module loosening and deformation, and ensures the precision and effectiveness of the fixtures.

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Abstract

This utility model relates to the field of modular fixture technology and discloses a modular quick-change fixture, including a base. A positioning component includes multiple through holes disposed within the base, mounting plate, and fixture seat. Each through hole has a positioning groove on its inner wall. A column is disposed inside each through hole, and an embedded groove is provided on the inner wall of the column. Multiple cavities are provided within the embedded groove, and sliders are disposed within each cavity. A rubber pad is provided at one end of each slider. An inner shaft is disposed inside the column, and multiple protrusions are provided on the outer wall of the inner shaft. A horizontal plate is provided at the top of the inner shaft, and a insertion rod is disposed inside the horizontal plate. Multiple locking holes are provided at the top of the column. This utility model uses a high-strength column to penetrate multiple modular components, connecting them into a single unit. During penetration, the column provides support and abutment to the modular components, improving the stability and connection strength during assembly. This effectively reduces the probability of loosening or deformation after assembly, ensuring the fixture's performance and stability.
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Description

Technical Field

[0001] This utility model relates to the field of modular fixture technology, specifically a modular quick-change fixture. Background Technology

[0002] Modular interchangeable fixtures are process equipment systems based on standardized and modular design. They consist of multiple universal components and assemblies with standardized structure and dimensions and interchangeable functions. They can be quickly assembled or disassembled according to specific processing requirements to achieve clamping and positioning of different workpieces. With their high efficiency, flexibility, and precision, modular interchangeable fixtures have become indispensable tools in modern manufacturing, demonstrating significant advantages, especially in responding to rapidly changing market demands.

[0003] The accuracy and rigidity of modular fixtures can be affected by their modular design. Because the fixture consists of multiple modules, the connecting parts are subjected to clamping pressure during long-term use, which may lead to deformation or loosening, thus affecting the overall strength of the fixture, reducing the stability of workpiece clamping, and impacting machining accuracy. Utility Model Content

[0004] The purpose of this utility model is to provide a modular quick-change fixture to solve the problem mentioned in the background art that the modular change fixture is composed of multiple modules, and the connection points may loosen or deform after long-term use, resulting in a decrease in the overall strength of the fixture and affecting the stability of workpiece clamping and processing accuracy.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a modular quick-change fixture for rental, comprising a base, a mounting plate and a fixture seat on the top of the base, a positioning component for assisting in locking the fixture during installation within the base, the positioning component comprising multiple through holes disposed within the base, the mounting plate and the fixture seat, each through hole having a positioning groove on its inner wall, a column disposed within the through hole, an embedded groove on the inner wall of the column, multiple cavities on the inner wall of the embedded groove, and a slider disposed within each of the multiple cavities, one end of the slider having a rubber pad;

[0006] The column has an inner shaft inside, the outer wall of the inner shaft has multiple protrusions, the top of the inner shaft has a horizontal plate, the inside of the horizontal plate has a plug rod, and the top of the column has multiple lock holes.

[0007] Preferably, the bottom of the mounting plate is slidably connected to the base, the mounting plate has multiple threaded holes inside, and the bottom of the clamp seat has multiple lead screws. When the mounting plate and the clamp seat are connected, the lead screws are embedded in the threaded holes and rotatably connected to the inner wall of the threaded holes.

[0008] Preferably, the array of multiple through holes is distributed within the base, mounting plate, and fixture seat, and the through holes inside the base, mounting plate, and fixture seat are interconnected when they are docked.

[0009] Preferably, the column is embedded through the through hole, and multiple cavities on the outer wall of the column are distributed in a ring around the outside of the column, with their angles corresponding to the positioning grooves on the inner wall of the through hole. The slider is located in the cavity and is slidably connected to the inner wall of the cavity.

[0010] Preferably, one end of the slider is connected to the rubber pad, and the other end is at an inclined angle and extends into the embedded groove of the inner wall of the column. The inner shaft is located inside the column and is rotatably connected to the inner wall of the column through a bearing. The plurality of protrusions are all at an inclined angle and are distributed in a ring on the outer wall of the inner shaft. The other end of the protrusion extends into the embedded groove and abuts against one end of the slider.

[0011] Preferably, the horizontal plate is connected to the top outer wall of the inner shaft by welding, and a plurality of lock holes are distributed in a ring on the top of the column. The insertion rod is slidably connected to the inner wall of the horizontal plate and can be extended and embedded in the lock hole by sliding.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. When designing multiple modular components, through holes are provided in the base, mounting plate, and fixture seat. During the assembly of the base, mounting plate, and fixture seat, the column passes through the through holes to assist in fixing on the basis of the original plug-in connection, thereby connecting them into a whole. The column fits against the inner wall of the through hole, locking the angle between multiple modules and preventing angle deviation or tilting during use, thus improving the stability of the connection between multiple module components. At the same time, the inner shaft inside the column rotates and cooperates with the protrusion to push the slider stored inside the column out and abut against the inner wall of the through hole, ensuring the tightness between the column and the inner wall of the through hole. This provides angular support when the module components become loose, improving the stability and connection strength during the assembly of the modular replacement fixture and ensuring the precision of the fixture use.

[0014] 2. When connecting the fixture base to the mounting plate, a lead screw is installed at the bottom of the fixture base. During the installation of the fixture base, the lead screw is embedded in the threaded hole of the mounting base, which not only enables the fixture base to be positioned at the installation angle and position, but also improves the stability of the fixture base. Furthermore, the installation strength of the fixture base is improved by rotating the lead screw and screwing it against the inner wall of the threaded hole, which further ensures the normal use of the fixture.

[0015] This invention uses a high-strength material column to penetrate multiple modular components, connecting them into one unit. The column provides support and abutment to the modular components during penetration, improving the stability and connection strength during assembly. This effectively reduces the likelihood of loosening or deformation after assembly, ensuring the effectiveness and stability of the fixture. Attached Figure Description

[0016] Figure 1 This is an overall isometric view of the present invention;

[0017] Figure 2 This is a breakdown diagram of the base, mounting base, and clamping base of this utility model;

[0018] Figure 3 This is an enlarged view of part A of this utility model;

[0019] Figure 4 This is a structural diagram of the column of this utility model;

[0020] Figure 5 This is a top sectional view of the column of this utility model;

[0021] Figure 6 This is an enlarged view of part B of this utility model.

[0022] In the diagram: 1. Base; 2. Mounting plate; 201. Threaded hole; 3. Fixture seat; 301. Lead screw; 4. Through hole; 401. Positioning groove; 5. Column; 501. Embedded groove; 502. Cavity; 6. Slider; 601. Rubber pad; 7. Inner shaft; 701. Protrusion; 8. Horizontal plate; 801. Insert rod; 9. Lock hole. Detailed Implementation

[0023] 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.

[0024] All devices in this application adopt conventional models in the prior art, and the control method is through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art, which is common knowledge in the field, so this application will not explain it in detail.

[0025] Please see the appendix Figure 1-4As shown, a modular quick-change fixture includes a base 1, a mounting plate 2 and a fixture seat 3 on the top of the base 1, and a positioning component for assisting in locking the fixture during installation. The positioning component includes multiple through holes 4 in the base 1, mounting plate 2 and fixture seat 3. When multiple modular components composed of the base 1, mounting plate 2 and fixture seat 3 are connected and assembled, the through holes 4 inside are aligned to assist in positioning the position and angle of the multiple modular components during connection. The inner walls of the multiple through holes 4 are provided with positioning grooves 401, and columns 5 are provided inside the through holes 4. After the multiple modular components are docked, the columns 5 can be embedded in the through holes 4 and penetrate through the multiple modular components to connect them together to form a whole.

[0026] The bottom of the mounting plate 2 is slidably connected to the base 1. The mounting plate 2 has multiple threaded holes 201 inside. The bottom of the clamp seat 3 has multiple lead screws 301. When the mounting plate 2 and the clamp seat 3 are connected, the lead screws 301 are embedded in the threaded holes 201 and are rotatably connected to the inner wall of the threaded holes 201. Multiple through holes 4 are arrayed in the base 1, the mounting plate 2 and the clamp seat 3, and the through holes 4 inside the base 1, the mounting plate 2 and the clamp seat 3 are connected to each other when they are connected.

[0027] In this embodiment: when assembling the module components, the internal through holes 4 are used to guide and position the angles and positions during assembly. After the angles are aligned, the column 5 is inserted into the through holes 4, thus penetrating multiple module components and connecting them into a whole. The dimensions of the column 5 correspond to the through holes 4, so it fits snugly against the through holes 4 during insertion, providing support during module assembly. The clamp seat 3 is inserted into the threaded hole 201 on the mounting plate 2 via the lead screw 301 at the bottom. By energizing the lead screw 301, it rotates within the threaded hole 201 to engage with the grooves, tightening the lead screw 301 into the threaded hole 201, improving the stability of the clamp seat 3 and the mounting plate 2 during installation. At the same time, the column 5 assists in improving the connection strength during module assembly, effectively reducing the probability of loosening and deformation between module components during use, and improving the stability of the clamp.

[0028] Example 2: This example is an improvement on Example 1. For details, please refer to [link / reference]. Figures 2-6The inner wall of the column 5 is provided with an embedded groove 501, and the inner wall of the embedded groove 501 is provided with multiple cavities 502 for housing the slider 6 and positioning the angle of the slider 6 when sliding and extending within the column 5. Each cavity 502 contains a slider 6, which can slide out of the column 5 and embed into the positioning groove 401 on the inner wall of the through hole 4 of the module assembly. The slider 6 abuts against the positioning groove 401, improving the tightness of the connection between the column 5 and the through hole 4. One end of the slider 6 is provided with a rubber pad 601, which increases the friction between the slider 6 and the positioning groove 401 and provides a certain buffer space through its toughness during contact. An inner shaft 7 is provided inside the column 5, located within the column 5, and is connected using a special tool. The directional block at the top can drive it to rotate inside the column 5. The outer wall of the inner shaft 7 is provided with multiple protrusions 701. The angle of the protrusions 701 corresponds to the angle of the slider 6 at one end of the inner groove 501. They can rotate together with the inner shaft 7 when it rotates and abut against the slider 6. By tilting the angle, the slider 6 is pushed to slide outward in the cavity 502. At the same time, the rough surface of the protrusions 701 increases the friction between it and the slider 6. The top of the inner shaft 7 is provided with a horizontal plate 8. The horizontal plate 8 is provided with a rod 801 inside. The top of the column 5 is provided with multiple locking holes 9. In the normal state, the rod 801 passes through the horizontal plate 8 and is embedded in the locking hole 9, thereby locking the position of the inner shaft 7 and preventing it from rotating in the column 5. When the clamp seat 3 needs to be replaced, it can be pulled out from the locking hole 9 and the locking of the inner shaft 7 can be released so that it can continue to rotate.

[0029] The column 5 is embedded through the through hole 4, and multiple cavities 502 on the outer wall of the column 5 are distributed in a ring around the outside of the column 5, with their angles corresponding to the positioning grooves 401 on the inner wall of the through hole 4. The slider 6 is located in the cavity 502 and is slidably connected to the inner wall of the cavity 502. One end of the slider 6 is connected to the rubber pad 601, and the other end is at an inclined angle and extends into the recessed groove 501 on the inner wall of the column 5. The inner shaft 7 is located inside the column 5 and is rotatably connected to the inner wall of the column 5 through a bearing. Multiple protrusions 701 are all at an inclined angle and are distributed in a ring around the outer wall of the inner shaft 7. The other end of the protrusion 701 extends into the recessed groove 501 and abuts against one end of the slider 6. The horizontal plate 8 is connected to the top outer wall of the inner shaft 7 by welding. Multiple lock holes 9 are distributed in a ring around the top of the column 5. The insertion rod 801 is slidably connected to the inner wall of the horizontal plate 8 and can be extended and embedded into the lock hole 9 by sliding.

[0030] In this embodiment: when assembling the module components, after the column 5 is embedded in the through hole 4, a special tool drives the inner shaft 7 to rotate inside the column 5. At the same time, the protrusion 701 on the outside of the inner shaft 7 rotates synchronously with the inner shaft 7 in the inner groove 501 inside the column 5, and abuts against one end of the slider 6 extending into the inner groove 501. The angle between the protrusion 701 and the slider 6 pushes the slider 6 to slide in the cavity 502 when the inner shaft 7 rotates, and causes one end of the slider 6 to extend out of the column 5 and abut against the positioning groove 401 of the through hole 4, thereby improving the connection strength between the column 5 and the through hole 4. This provides auxiliary support between multiple module components when other plug-in connection methods become loose, ensuring the stability of the module components. After the inner shaft 7 rotates, the insert rod 801 is embedded in the locking hole 9 at the top of the column 5 to lock the inner shaft 7, thereby maintaining a continuous compression state on the slider 6.

[0031] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A modular tenancy quick change fixture, comprising a base (1) provided with a mounting plate (2) and a fixture seat (3) on the top, and a positioning assembly for assisting locking when the fixture is mounted, characterized in that: The positioning component includes multiple through holes (4) disposed in the base (1), mounting plate (2) and clamp seat (3). The inner walls of the multiple through holes (4) are provided with positioning grooves (401). A column (5) is disposed inside the through hole (4). An embedded groove (501) is disposed inside the inner wall of the column (5). Multiple cavities (502) are disposed inside the inner wall of the embedded groove (501). A slider (6) is disposed inside the multiple cavities (502). A rubber pad (601) is disposed at one end of the slider (6). The column (5) has an inner shaft (7) inside, and the outer wall of the inner shaft (7) has multiple protrusions (701). The top of the inner shaft (7) has a horizontal plate (8), and the inside of the horizontal plate (8) has a plug rod (801). The top of the column (5) has multiple lock holes (9).

2. The modular rental quick change clamp of claim 1, wherein: The bottom of the mounting plate (2) is slidably connected to the base (1). The mounting plate (2) has multiple threaded holes (201) inside. The bottom of the clamp seat (3) has multiple lead screws (301). When the mounting plate (2) and the clamp seat (3) are connected, the lead screws (301) are embedded in the threaded holes (201) and rotatedly connected to the inner wall of the threaded holes (201).

3. The modular rental quick change clamp of claim 1, wherein: Multiple through holes (4) are arrayed in the base (1), mounting plate (2) and fixture seat (3), and the through holes (4) inside the base (1), mounting plate (2) and fixture seat (3) are connected to each other.

4. The modular rental quick change clamp of claim 1, wherein: The column (5) is embedded in the through hole (4), and multiple cavities (502) on the outer wall of the column (5) are distributed in a ring outside the column (5) and their angles correspond to the positioning groove (401) on the inner wall of the through hole (4). The slider (6) is located in the cavity (502) and is slidably connected to the inner wall of the cavity (502).

5. A modular rental quick change clamp according to claim 4, wherein: One end of the slider (6) is connected to the rubber pad (601), and the other end is at an inclined angle and extends into the inner groove (501) of the inner wall of the column (5). The inner shaft (7) is located inside the column (5) and is rotatably connected to the inner wall of the column (5) through a bearing. The multiple protrusions (701) are all at an inclined angle and are distributed in a ring on the outer wall of the inner shaft (7). The other end of the protrusion (701) extends into the inner groove (501) and abuts against one end of the slider (6).

6. The modular rental quick change clamp of claim 1, wherein: The horizontal plate (8) is connected to the top outer wall of the inner shaft (7) by welding. Multiple lock holes (9) are distributed in a ring on the top of the column (5). The insertion rod (801) is slidably connected to the inner wall of the horizontal plate (8) and can be extended and embedded in the lock hole (9) by sliding.