Detection tool for spring bracket

By designing a spring frame inspection fixture, the problem of low inspection efficiency in existing technologies has been solved, enabling efficient and accurate multi-item inspection and meeting the needs of modern production.

CN224215987UActive Publication Date: 2026-05-08SHANGHAI DONGLEI PRECISION MOULD TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI DONGLEI PRECISION MOULD TECH CO LTD
Filing Date
2025-06-26
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

The existing spring frame products have low testing efficiency, which makes it difficult to meet the requirements of modern production for high efficiency and accuracy in testing, and they are easily affected by human factors.

Method used

A spring frame testing fixture was designed, including a base, a support base, a quick-pressing structure, a testing seat, a quick-testing structure, a testing pin, a flip-and-connect structure, and a plug-in structure. By combining these structures, multiple testing requirements for spring frames can be met, improving testing efficiency and accuracy.

Benefits of technology

It significantly improves the testing efficiency of spring frame products, reduces the complexity and error rate of manual operation, and ensures the stability and accuracy of testing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of detection tools, in particular to a spring support detection tool which comprises a base and a supporting seat used for supporting a product, and the supporting seat is arranged on the base. The pedestal is provided with a fast pressing structure used for pressing and fixing a product, a first detection seat used for detecting the size of a first positioning hole, and a second detection seat used for detecting the size of a second positioning hole. The base is further provided with a fast detection structure used for detecting the specification of the fixing column, a detection pin used for detecting the size of the insertion hole, an overturning abutting structure used for detecting the flatness of the arc-shaped face and an insertion structure used for detecting the size of the insertion groove, and the detection pin and the insertion hole are in insertion fit. The detection efficiency of the spring bracket product is obviously improved, and the complexity and the error rate of manual operation are reduced at the same time.
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Description

Technical Field

[0001] This application relates to the field of testing tooling technology, and in particular to a testing tooling for a spring frame. Background Technology

[0002] The existing spring frame product structure includes a frame body and an upper plate and a lower plate formed on the frame body. The frame body is provided with a first positioning hole, a second positioning hole, an arc-shaped surface and a slot. The upper plate is provided with a fixing post and the lower plate is provided with a insertion hole. In the production process of the spring frame product, it is necessary to control the product quality. Therefore, the specification inspection of the fixing post and each hole and slot on the product is a key step.

[0003] Currently, the industry commonly uses micrometers for measurement, which requires multiple operations to obtain an average value. This manual measurement method is not only inefficient and susceptible to human error, but also cannot achieve rapid batch testing, making it difficult to meet the demands of modern production for high-efficiency and accurate testing. There are areas for improvement. Utility Model Content

[0004] To improve the efficiency of spring frame product testing, this application provides a testing fixture for spring frames.

[0005] This application provides a testing fixture for spring frames, which adopts the following technical solution:

[0006] A testing fixture for a spring frame includes a base and a support seat for supporting a product. The support seat is disposed on the base. The base is provided with a quick-pressing structure for pressing and fixing the product, a first testing seat for detecting the size of a first positioning hole, and a second testing seat for detecting the size of a second positioning hole. The base is also provided with a quick-testing structure for detecting the specifications of a fixing post, a testing pin for detecting the size of a socket, a flip-and-abutment structure for detecting the flatness of an arc surface, and a plug-in structure for detecting the size of a slot. The testing pin and the socket form a plug-in engagement.

[0007] By adopting the above technical solution, the base serves as the basic support structure of the entire tooling, providing a stable installation platform for other components. The support base can perform preliminary positioning of the product, and the quick-press structure can further press and fix the product. At the same time, the design of the first and second detection bases, quick-inspection structure, detection pin, flip-and-connection structure, and plug-in structure can simultaneously adapt to the inspection requirements of the first positioning hole, second positioning hole, fixing post, plug hole, arc surface, and slot on the product. Compared with traditional micrometer measurement, it significantly improves the inspection efficiency of spring frame products, while also reducing the complexity and error rate of manual operation.

[0008] Preferably, the first detection seat includes a first seat body and a first positioning post for detecting the first positioning hole. The first seat body is disposed on the base, the first positioning post is disposed on the first seat body, and the first positioning post and the first positioning hole form an insertion fit.

[0009] By adopting the above technical solution, the first positioning pin and the first positioning hole form an insertion fit, which can quickly and intuitively determine whether the size of the first positioning hole meets the standard. If the first positioning pin can be smoothly inserted into the first positioning hole and fits tightly, it means that the size of the first positioning hole is qualified; otherwise, it is unqualified.

[0010] Preferably, the quick-pressing structure includes a first quick clamp and a second quick clamp, both of which form an abutment fit with the product.

[0011] By adopting the above technical solution, the first and second quick clamps form an abutment fit with the product, which can quickly and firmly press and fix the spring frame on the support base during the test, avoiding displacement of the spring frame during the test, ensuring the stability and accuracy of the test, and also providing a reliable foundation for subsequent test operations.

[0012] Preferably, the rapid detection structure includes a first fixing block, a connecting block, a sliding block that slides on a first mounting base, a detection sleeve for detecting the specifications of the fixing post, and a return spring sleeved on the detection sleeve. The first fixing block is disposed on the base, the connecting block is fixedly connected to the sliding block, the connecting block forms an abutment fit with the upper plate, the detection sleeve is slidably disposed inside the connecting block, and the detection sleeve forms a sleeve fit with the fixing post. One end of the return spring abuts against the end of the detection sleeve, and the other end abuts against the connecting block.

[0013] By adopting the above technical solution, during the inspection, the sliding block is pushed to drive the connecting block to form an abutment fit with the upper plate, thereby judging the flatness of the upper plate. At the same time, the detection sleeve rod forms a sleeve fit with the fixed column, which can quickly detect whether the specifications of the fixed column meet the requirements. The setting of the reset spring allows the detection sleeve rod to automatically reset after the inspection, which is convenient for the next inspection and improves the inspection efficiency.

[0014] Preferably, the first fixing block has a locking hole along its thickness direction, the sliding block has an adapter hole along its thickness direction, a locking pin is inserted into the first locking hole of the first fixing block, and the locking pin passes through the first locking hole and the first adapter hole in sequence for locking.

[0015] By adopting the above technical solution, the locking hole on the first fixed block is matched with the adapter hole on the sliding block, and the locking pin is inserted to lock it. This allows the sliding block to be firmly locked in the appropriate position during testing, ensuring the accuracy and stability of the testing sleeve in detecting the specifications of the fixed column.

[0016] Preferably, the flip-and-abutment structure includes a second fixing block, a flip block, a detection block, and a locking bolt. The second fixing block is disposed on the base, the flip block is rotatably connected to the second fixing block, the detection block is disposed on the flip block, and the detection block forms an abutment fit with the arc-shaped surface. The flip block is provided with a waist-shaped hole, and the locking bolt passes through the waist-shaped hole and is threadedly connected to the second fixing block.

[0017] By adopting the above technical solution, during the inspection, the staff can quickly place the inspection block against the arc surface to check the flatness by rotating the flipping block. At the same time, the setting of the waist-shaped hole and the locking bolt allows the flipping block to be flexibly adjusted within a certain range. When it is adjusted to the right position, it can be fixed by the locking bolt to ensure the stability of the inspection block and the arc surface during the inspection process.

[0018] Preferably, the plug-in structure includes a third fixing block and a plug block. The third fixing block is disposed on the base, and the plug block is slidably disposed on the third fixing block. The plug block and the slot form a plug-in engagement.

[0019] By adopting the above technical solution, the insertion block and the slot can be connected to form a mating fit, which can quickly detect whether the size of the slot is qualified. If the insertion block can be smoothly inserted into the slot and fits well, the size of the slot meets the requirements; otherwise, it is unqualified. This detection method is simple, direct, and easy to operate, and can quickly complete the detection of the slot size, thus improving the detection efficiency.

[0020] Preferably, the base is symmetrically provided with handles to facilitate the transfer of tools by workers.

[0021] By adopting the above technical solution and utilizing the handle, it is easier for staff to hold the testing fixture when moving and transferring it. Compared with fixtures without handles, the fixtures can be moved more easily and effortlessly, reducing the labor intensity of staff and improving the safety and convenience of the fixture transfer process.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The base serves as the fundamental support structure of the entire tooling, providing a stable installation platform for other components. The support base can initially position the product, and the quick-press structure can further press and fix the product. At the same time, the design of the first and second detection bases, quick-inspection structure, detection pin, flip-up abutment structure and plug-in structure can simultaneously adapt to the inspection requirements of the first positioning hole, second positioning hole, fixing post, plug hole, arc surface and slot on the product. Compared with traditional micrometer measurement, it significantly improves the inspection efficiency of spring frame products, while also reducing the complexity and error rate of manual operation.

[0024] 2. By using the first and second quick clamps to form an abutment fit with the product, the spring frame can be quickly and firmly pressed and fixed on the support base during testing, preventing displacement of the spring frame during testing, ensuring the stability and accuracy of testing, and also providing a reliable foundation for subsequent testing operations;

[0025] 3. During testing, the sliding block is pushed to cause the connecting block to form an abutment fit with the upper plate, thereby judging the flatness of the upper plate. At the same time, the detection sleeve rod forms a fitting fit with the fixed column, which can quickly check whether the specifications of the fixed column meet the requirements. The setting of the reset spring allows the detection sleeve rod to automatically reset after the test, which is convenient for the next test and improves the testing efficiency. Attached Figure Description

[0026] Figure 1 This is an isometric schematic diagram of the main overall structure in the embodiments of this application;

[0027] Figure 2 This is a partial exploded view of the main cooperative relationship between the product and the testing tooling in the embodiments of this application;

[0028] Figure 3 This is a schematic diagram illustrating the state of the detection sleeve compression reset spring in the embodiments of this application;

[0029] Figure 4 This is a structural schematic diagram of the main flip-and-abutment structure in the embodiments of this application;

[0030] Figure 5 This is a schematic diagram illustrating the main plug-in structure in the embodiments of this application.

[0031] Reference numerals: 1. Base; 11. Handle; 2. Support base; 3. Quick-press structure; 31. First quick clamp; 32. Second quick clamp; 33. First heightening block; 34. Second heightening block; 4. First detection seat; 41. First seat body; 42. First positioning post; 5. Second detection seat; 51. Second seat body; 52. Second positioning post; 6. Quick-detection structure; 61. First fixing block; 62. Sliding block; 63. Connecting block; 64. Detection sleeve rod; 65. Return spring; 66. Locking pin; 7. Detection pin; 8. Flip-and-abutment structure; 81. Second fixing block; 82. Flip-and-abutment block; 821. Waist-shaped hole; 83. Detection block; 84. Locking bolt; 9. Insertion structure; 91. Third fixing block; 92. Insertion block. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 This application will be described in further detail.

[0033] This application discloses a testing fixture for spring frames.

[0034] Reference Figure 1 and Figure 2 A testing fixture for a spring frame includes a base 1 and a support 2. The base 1 is a rectangular metal plate, and the support 2 is welded to the base 1. The support 2 is used to support the product and initially position the product. A quick-pressing structure 3 is provided on the base 1, which further presses and fixes the product.

[0035] Reference Figure 1 and Figure 2 The base 1 is provided with a first detection seat 4 and a second detection seat 5. The first detection seat 4 includes a first seat body 41 and a first positioning post 42. The first seat body 41 is welded to the base 1, and the first positioning post 42 is vertically welded to the top of the first seat body 41. The first positioning post 42 and the first positioning hole form an insertion fit. If the first positioning post 42 can be smoothly inserted into the first positioning hole and fits tightly, it means that the size of the first positioning hole is qualified; otherwise, it is unqualified.

[0036] Reference Figure 1 and Figure 2 The second detection seat 5 includes a second seat body 51 and a second positioning post 52. The second seat body 51 is welded to the base 1, and the second positioning post 52 is vertically welded to the top of the second seat body 51. The second positioning post 52 and the second positioning hole form an insertion fit. If the second positioning post 52 can be smoothly inserted into the second positioning hole and fits tightly, it means that the size of the second positioning hole is qualified; otherwise, it is unqualified.

[0037] Reference Figure 1 and Figure 2 Both the first positioning post 42 and the second positioning post 52 are provided with stepped surfaces, which allow the product to be stably attached to the stepped surfaces of the first positioning post 42 and the second positioning post 52 while the first positioning hole and the second positioning hole are being inspected, so as to facilitate the subsequent inspection of other hole positions.

[0038] Reference Figure 1 and Figure 2 The quick-pressing structure 3 includes a first quick-clamp 31, a second quick-clamp 32, a first lifting block 33, and a second lifting block 34. The first lifting block 33 and the second lifting block 34 are both welded to the base 1. The first lifting block 33 is located close to the first base 41, and the first quick-clamp 31 is fixed to the top of the first lifting block 33 by bolts. The second lifting block 34 is located close to the second base 51, and the second quick-clamp 32 is fixed to the top of the second lifting block 34 by bolts. The pressure head of the first quick-clamp 31 is located above the first positioning post 42, and the pressure head of the second quick-clamp 32 is located above the second positioning post 52. The pressure heads of the first quick-clamp 31 and the second quick-clamp 32 both form abutment fit with the product, thereby ensuring the placement stability of the product.

[0039] Reference Figure 2 and Figure 3 The base 1 is provided with a quick-test structure 6 for detecting the specifications of the fixed column. The quick-test structure 6 includes a first fixed block 61, a sliding block 62, a connecting block 63, a detection sleeve 64, and a return spring 65. The first fixed block 61 is welded to the base 1. The first fixed block 61 is provided with a sliding hole that forms a sliding fit with the sliding block 62. The connecting block 63 is welded and fixed to the sliding block 62. The detection sleeve 64 is slidably disposed inside the connecting block 63 and forms a sleeve fit with the fixed column. The return spring 65 is sleeved on the detection sleeve 64. One end of the return spring 65 abuts against the end of the detection sleeve 64, and the other end abuts against the connecting block 63.

[0040] Reference Figure 2 and Figure 3 The first fixed block 61 has a locking hole along its thickness direction, and the sliding block 62 has an adapter hole along its thickness direction. A locking pin 66 is inserted into the first locking hole of the first fixed block 61. The locking pin 66 passes through the first locking hole and the first adapter hole in sequence to lock, thereby firmly locking the sliding block 62 in the appropriate position during testing.

[0041] Reference Figure 2 and Figure 3 During testing, the sliding block 62 is pushed to drive the connecting block 63 to form an abutment fit with the upper plate, thereby judging the flatness of the upper plate. When the testing sleeve 64 is pushed into the fixed post, if the testing sleeve 64 can be smoothly fitted into the fixed post with appropriate tightness, the fixed post is qualified; otherwise, it is unqualified. At the same time, the reset spring 65 is used to enable the testing sleeve 64 to automatically reset after testing, which facilitates the next test and improves the testing efficiency.

[0042] Reference Figure 1 and Figure 2 The second seat 51 is equipped with a detection pin 7 for detecting the size of the socket. The detection pin 7 and the socket are connected in a plug-in fit. If the staff can push the detection pin 7 to be successfully plugged into the socket, the size of the socket is qualified; otherwise, it is unqualified.

[0043] Reference Figure 2 and Figure 4 The base 1 is provided with a flip-and-abutment structure 8 for detecting the flatness of the arc surface. The flip-and-abutment structure 8 includes a second fixing block 81, a flip block 82, a detection block 83 and a locking bolt 84. The second fixing block 81 is welded to the base 1 and has an opening slot. The flip block 82 is rotatably connected to the second fixing block 81 through a rotating shaft and is installed in the opening slot. The detection block 83 is welded to the flip block 82 and the lower surface of the detection block 83 forms an abutment fit with the arc surface.

[0044] Reference Figure 2 and Figure 4 The flip block 82 has a waist-shaped hole 821 on the side opposite to the product, which allows the flip block 82 to be flexibly adjusted within a certain range. The locking bolt 84 passes through the waist-shaped hole 821 and is threadedly connected to the second fixing block 81. After tightening, the detection block 83 can be pressed against the arc surface to perform flatness detection, ensuring the stability of the detection block 83 and the arc surface during the detection process.

[0045] Reference Figure 2 and Figure 5 The base 1 is provided with a plug-in structure 9 for detecting the size of the slot. The plug-in structure 9 includes a third fixing block 91 and a plug 92. The third fixing block 91 is welded to the base 1 and has an adapter hole. The plug 92 is slidably disposed in the adapter hole of the third fixing block 91 and forms a plug-in fit with the slot. If the plug 92 can be smoothly inserted into the slot and fits well, the slot size meets the requirements; otherwise, it is unqualified.

[0046] Reference Figure 1 The base 1 is symmetrically equipped with handles 11. The handles 11 make it easier for staff to hold the testing fixtures when moving and transferring them, making it easier and less strenuous to move the fixtures, reducing the labor intensity of the staff, and improving the safety and convenience of the fixture transfer process.

[0047] The implementation principle of this application embodiment is as follows: During actual testing, the staff first places the spring frame on the support base 2, aligns the first positioning hole and the second positioning hole with the first positioning post 42 and the second positioning post 52 respectively, observes whether the first positioning post 42 is smoothly inserted into the first positioning hole, and at the same time observes whether the second positioning post 52 is smoothly inserted into the second positioning hole, and then moves the first quick clamp 31 and the second quick clamp 32 to press the product.

[0048] Next, pull out the locking pin 66 and push the sliding block 62 to drive the connecting block 63 to form an abutment fit with the upper plate, thereby judging the flatness of the upper plate. Then push the sliding block 62 to make the detection sleeve 64 fit into the fixed post. If the detection sleeve 64 can be smoothly fitted into the fixed post and the tightness is appropriate, the fixed post is qualified; otherwise, it is unqualified.

[0049] Next, insert the test pin 7 into the socket and check if it goes smoothly; then rotate the flip block 82 so that the test block 83 abuts against the arc surface, and tighten the locking bolt 84 to fix the position of the test block 83. If the test block 83 abuts against the arc surface smoothly, the flatness of the arc surface is qualified; otherwise, it is unqualified.

[0050] Finally, slide the insert 92 into the slot. If the insert 92 can be smoothly inserted into the slot and fits well, the slot size meets the requirements; otherwise, it is unqualified. After all the test items are qualified, release the quick clamp and take out the product to improve the testing efficiency of spring frame products.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A testing fixture for spring frames, characterized in that: The product includes a base (1) and a support seat (2) for supporting the product. The support seat (2) is disposed on the base (1). The base (1) is provided with a quick-pressing structure (3) for pressing and fixing the product, a first detection seat (4) for detecting the size of the first positioning hole and a second detection seat (5) for detecting the size of the second positioning hole. The base (1) is also provided with a quick-checking structure (6) for detecting the specifications of the fixing column, a detection pin (7) for detecting the size of the insertion hole, a flip-and-abutment structure (8) for detecting the flatness of the arc surface and a plug-in structure (9) for detecting the size of the slot. The detection pin (7) forms a plug-in fit with the insertion hole.

2. The testing fixture for a spring frame according to claim 1, characterized in that: The first detection seat (4) includes a first seat body (41) and a first positioning post (42) for detecting the first positioning hole. The first seat body (41) is disposed on the base (1), and the first positioning post (42) is disposed on the first seat body (41). The first positioning post (42) and the first positioning hole form an insertion fit.

3. The testing fixture for a spring frame according to claim 1, characterized in that: The quick-pressing structure (3) includes a first quick clamp (31) and a second quick clamp (32), both of which form an abutment fit with the product.

4. The testing fixture for a spring frame according to claim 1, characterized in that: The rapid detection structure (6) includes a first fixing block (61), a connecting block (63), a sliding block (62) that slides on the first mounting base, a detection sleeve (64) for detecting the specifications of the fixing column, and a return spring (65) sleeved on the detection sleeve (64). The first fixing block (61) is set on the base (1). The connecting block (63) is fixedly connected to the sliding block (62). The connecting block (63) forms an abutting fit with the upper plate. The detection sleeve (64) is slidably set inside the connecting block (63), and the detection sleeve (64) forms a sleeve fit with the fixing column. One end of the return spring (65) abuts against the end of the detection sleeve (64), and the other end abuts against the connecting block (63).

5. The inspection fixture for a spring frame according to claim 4, characterized in that: The first fixing block (61) has a locking hole along its thickness direction, and the sliding block (62) has an adapter hole along its thickness direction. A locking pin (66) is inserted into the first locking hole of the first fixing block (61), and the locking pin (66) passes through the first locking hole and the first adapter hole in sequence for locking.

6. The testing fixture for a spring frame according to claim 1, characterized in that: The flip-and-abutment structure (8) includes a second fixing block (81), a flip block (82), a detection block (83), and a locking bolt (84). The second fixing block (81) is mounted on the base (1). The flip block (82) is rotatably connected to the second fixing block (81). The detection block (83) is mounted on the flip block (82) and forms an abutment fit with the arc-shaped surface. The flip block (82) is provided with a waist-shaped hole (821). The locking bolt (84) passes through the waist-shaped hole (821) and is threadedly connected to the second fixing block (81).

7. The testing fixture for a spring frame according to claim 1, characterized in that: The plug-in structure (9) includes a third fixing block (91) and a plug (92). The third fixing block (91) is disposed on the base (1), and the plug (92) is slidably disposed on the third fixing block (91). The plug (92) and the slot form a plug-in engagement.

8. The testing fixture for a spring frame according to claim 1, characterized in that: The base (1) is symmetrically provided with handles (11) to facilitate the transfer of tools by workers.