Four-way leg support assembly testing fixture

By designing a four-way leg support assembly inspection fixture, the side contour and end position of the four-way leg support assembly are accurately positioned using a positioning pin and pin hole structure. This solves the problem of lack of positioning detection in the existing technology and achieves fast and accurate detection results.

CN223976588UActive Publication Date: 2026-03-06LANG RUI OU (SHANG HAI) JING MI JI XIE YOU XIAN GONG SI
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520844841.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-30
Publication Date
2026-03-06
Estimated Expiration
2035-04-30

AI Technical Summary

Technical Problem

The lack of a dedicated positioning and testing fixture for four-way leg support assemblies in the existing technology makes testing difficult.

Method used

A four-way leg support assembly inspection fixture was designed, comprising a fixture base, a first positioning component, and a second positioning component. The fixture utilizes a positioning pin and pin hole structure to achieve precise positioning of the side contour and end position of the four-way leg support assembly. Combined with the use of compression springs and bolts, it enables rapid positioning and inspection.

Benefits of technology

It enables rapid positioning and testing of the four-way leg support assembly, accurately detecting position and contour accuracy, thus improving testing efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223976588U_ABST
    Figure CN223976588U_ABST
Patent Text Reader

Abstract

The utility model belongs to the field of mechanical part detection, particularly relates to a four-way leg support assembly detection tool, and aims to solve the problem that a detection tool specially used for positioning to help detection is lacked in the existing market, and provides the following scheme: the four-way leg support assembly detection tool comprises a four-way leg support assembly, two end portions of the four-direction leg support assembly are respectively provided with a second positioning hole and a first positioning hole. The inner walls of two side edges of the four-direction leg support assembly are respectively provided with a side edge positioning hole. And the first positioning piece is used for detecting the side contour of the leg support assembly, putting a product into the detection tool, locking the product by using a bolt, enabling the product to cling to the detection tool, completing positioning, detecting the position degree of the product by using a detection sleeve and a detection pin, and detecting a gap between a detection surface and a part by using a go-no go gauge, so that the effects of rapid positioning, arrangement and detection can be realized.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of mechanical parts testing technology, and in particular to a four-way leg support assembly inspection tool. Background Technology

[0002] In the manufacturing of automotive seats and similar products, the four-way leg rest assembly is a key component for supporting the angle. Its complex structure necessitates inspection during production to meet high-precision assembly requirements. Currently, there is a lack of specialized fixtures on the market for positioning and inspection. Therefore, this paper proposes a fixture that facilitates easy positioning and installation during inspection, enabling convenient measurement of the positional and contour accuracy of the four-way leg rest assembly. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies, such as the lack of specialized positioning tools on the market to aid in testing, and to propose a four-way leg support assembly inspection tool.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A four-way leg support assembly inspection fixture includes a four-way leg support assembly, wherein each of the two ends of the four-way leg support assembly has a No. 2 positioning hole and a No. 1 positioning hole, and each of the two inner walls of the four-way leg support assembly has a side positioning hole. It also includes:

[0006] Inspection fixture base;

[0007] The first positioning component is used to inspect the side profile of the leg support assembly. The first positioning component includes a support leg and a positioning pin. The support leg is fixedly mounted on the top of the inspection fixture base, and the positioning pin is located on one side of the support leg. The positioning pin cooperates with the side positioning hole.

[0008] The second positioning component is used to detect the end position of the leg support assembly. The second positioning component includes a reference base, which is mounted on the top of the fixture base by a support. The top of the reference base has a pin hole, which cooperates with the second positioning hole and the first positioning hole.

[0009] In one possible design, the first positioning component further includes a compression spring, a side groove is provided on the top of one side of the support leg, one end of the positioning pin is slidably disposed inside the side groove, a limiting ring is fixedly sleeved on the outer wall of the positioning pin, the compression spring is sleeved on the outer wall of the positioning pin, and the two ends of the positioning pin are respectively fixedly disposed on one side of the limiting ring and one side of the support leg.

[0010] In one possible design, the pin holes are provided in two sets, and each set includes a first pin hole and a second pin hole. The first pin hole and the second pin hole located in the same set are respectively matched with the first positioning hole and the second positioning hole at the same end.

[0011] In this application, during actual use, the two ends of the four-way leg support assembly are first positioned below the reference base, with the support located between the two ends. The other part of the four-way leg support assembly is positioned above the locating pin. Then, the locating pin is moved into the side groove, and the four-way leg support assembly can be fitted onto the outside of the two legs. The locating pin is then reset by a compression spring, thereby inserting one end of the locating pin into the side locating hole. Then, the end of the four-way leg support assembly is fitted against the bottom of the reference base, so that the first pin hole and the first locating hole, as well as the second pin hole and the second locating hole, are connected. Then, bolts or other components can be used to connect the two together, making them fit together. Then, the position of the product can be checked using a detection sleeve and a detection pin, and the gap between the detection surface and the part is checked using a go / no-go gauge.

[0012] In this utility model, the four-way leg support assembly gauge can achieve automatic alignment of the side contour by pre-tightening the compression spring of the first positioning component;

[0013] In this utility model, the four-way leg support assembly gauge can achieve composite positioning of the end position through the double pin hole structure of the second positioning component.

[0014] In this invention, the product is placed in the fixture and bolted to ensure it is tightly against the fixture, thus completing the positioning. Then, a testing sleeve and testing pin are used to check the product's position. The gap between the testing surface and the part is checked using a go / no-go gauge, enabling rapid positioning and quick inspection. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of the base of the four-way leg support assembly inspection fixture proposed in this utility model;

[0016] Figure 2 This utility model Figure 1 Enlarged view of the structure of section A;

[0017] Figure 3 This utility model Figure 1 Enlarged view of the structure of section B;

[0018] Figure 4 This is a schematic diagram of the main structure of the four-way leg support assembly inspection fixture proposed in this utility model;

[0019] Figure 5 This is a bottom view of the four-way leg support assembly inspection fixture proposed in this utility model.

[0020] Figure 6 This is a three-dimensional structural diagram of the four-way leg support assembly inspection fixture proposed in this utility model after actual assembly.

[0021] In the diagram: 1. Inspection fixture base; 2. Support leg; 3. Side groove; 4. Compression spring; 5. Limiting ring; 6. Positioning pin; 7. Reference seat; 8. No. 1 pin hole; 9. No. 2 pin hole; 10. Four-way leg support assembly; 11. No. 2 positioning hole; 12. No. 1 positioning hole; 13. Side positioning hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Example 1

[0024] Reference Figure 4-5 The inspection fixture includes a four-way leg support assembly 10, with a second positioning hole 11 and a first positioning hole 12 at both ends of the four-way leg support assembly 10, and side positioning holes 13 on both inner walls of the two sides of the four-way leg support assembly 10. It also includes:

[0025] Reference Figure 1-3 Inspection base 1

[0026] The top of the base of the inspection fixture 1 is provided with multiple mounting holes for fixing the No. 1 positioning component and the No. 2 positioning component. The bottom of the base is provided with anti-slip rubber pads to ensure that the inspection fixture remains stable during use.

[0027] Positioning component No. 1

[0028] The first positioning component consists of support legs 2, positioning pins 6, etc. Support legs 2 are vertically fixed to the top of the fixture base 1 by bolts, and their height matches the side profile of the four-way leg support assembly 10. When the four-way leg support assembly 10 is placed on the fixture, its side positioning holes 13 are aligned with the positioning pins 6 to achieve positioning of the side profile.

[0029] Positioning component No. 2

[0030] The second positioning component consists of a reference base 7 and two sets of pin holes. The reference base 7 is mounted on top of the fixture base 1 via a support, which can be a locking screw structure. The top of the reference base 7 has two sets of pin holes. During inspection, the two ends of the four-way leg support assembly 10 correspond to the two sets of pin holes respectively, and then the connection and positioning are achieved using components such as pins or bolts.

[0031] This application can be used in the field of mechanical parts testing, or in other fields applicable to this application.

[0032] Example 2

[0033] refer to Figure 2-5An improvement upon Embodiment 1: a four-way leg support assembly inspection fixture, applied to the field of mechanical parts inspection, includes a first positioning component comprising a compression spring 4 and a limiting ring 5. A side groove 3 is formed on the top of one side of the support leg 2, and one end of the positioning pin 6 is slidably disposed within the side groove 3. A compression spring 4 is fitted onto the outer wall of the positioning pin 6, with both ends of the spring 4 abutting against the limiting ring 5 and the inner side of the support leg 2, respectively, so that the positioning pin 6 maintains an outward preload under the elastic force of the spring 4. When the four-way leg support assembly 10 is placed on the inspection fixture, its side positioning hole 13 automatically aligns with the positioning pin 6, and the preload of the spring 4 ensures a tight fit between the positioning pin 6 and the side positioning hole 13, achieving precise positioning of the side contour.

[0034] Each set of pin holes in the second positioning component includes a first pin hole 8 and a second pin hole 9. During testing, the first pin hole 8 and the first positioning hole 12, as well as the second pin hole 9 and the second positioning hole 11, are connected and rapid positioning is achieved through components such as pins.

[0035] The specific operation is as follows: First, both ends of the four-way leg support assembly 10 are positioned below the reference base 7, with the support located between the two ends. The other part of the four-way leg support assembly 10 is positioned above the positioning pin 6. Then, the positioning pin 6 is moved into the side groove 3, allowing the four-way leg support assembly 10 to be fitted onto the outside of the two legs 2. The positioning pin 6 is then reset by the compression spring 4, inserting one end of the positioning pin 6 into the side positioning hole 13. Next, the end of the four-way leg support assembly 10 is brought into contact with the bottom of the reference base 7, connecting the first pin hole 8 and the first positioning hole 12, as well as the second pin hole 9 and the second positioning hole 11. Refer to the attached diagram for the desired state. Figure 6 Then, bolts and other components can be used to connect the two together so that they fit together. Then, a test sleeve and test pin can be used to check the position of the product. The gap between the test surface and the part is checked with a go / no-go gauge, thereby achieving the function of rapid positioning and quick inspection.

[0036] 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.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A four-way leg support assembly testing fixture, comprising a four-way leg support assembly (10), two ends of the four-way leg support assembly (10) are provided with a No. 2 positioning hole (11) and a No. 1 positioning hole (12), and the inner walls of the two side edges of the four-way leg support assembly (10) are provided with a side edge positioning hole (13), characterized in that, Also include: The base of the gauge (1); The first positioning member is used for detecting the side edge contour of the leg support assembly, and comprises a supporting leg (2) and a positioning pin (6). The supporting leg (2) is fixedly arranged on the top of the base of the gauge (1), and the positioning pin (6) is arranged on one side of the supporting leg (2). The positioning pin (6) is matched with a side edge positioning hole (13). The second positioning member is used for detecting the end position of the leg support assembly, and comprises a reference seat (7). The reference seat (7) is installed on the top of the base of the gauge (1) through a support. A pin hole is formed in the top of the reference seat (7). The pin hole is matched with a second positioning hole (11) and a first positioning hole (12).

2. The four-way leg rest assembly gauge of claim 1, wherein, The first positioning member further comprises a compression spring (4). A side groove (3) is formed in the top of one side of the supporting leg (2). One end of the positioning pin (6) is slidably arranged in the inside of the side groove (3). A limiting ring (5) is fixedly arranged on the outer wall of the positioning pin (6). The compression spring (4) is arranged on the outer wall of the positioning pin (6). The two ends of the positioning pin (6) are respectively fixedly arranged on one side of the limiting ring (5) and one side of the supporting leg (2).

3. The four-way leg rest assembly gauge of claim 1, wherein, The pin hole is provided with two groups, and each group comprises a first pin hole (8) and a second pin hole (9). The first pin hole (8) and the second pin hole (9) in the same group are respectively matched with a first positioning hole (12) and a second positioning hole (11) of the same end.