A fixture for inspecting the misalignment of reinforcing steel sheets

The inspection fixture combining a negative pressure generator and a positioning column solved the problem of unstable positioning, enabled accurate inspection of reinforcing steel sheets, and improved the inspection accuracy and consistency of flexible circuit boards.

CN224435238UActive Publication Date: 2026-06-30QINHUANGDAO DONGXUDA ADHESIVE PROD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINHUANGDAO DONGXUDA ADHESIVE PROD CO LTD
Filing Date
2025-09-01
Publication Date
2026-06-30

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Abstract

This utility model relates to the field of inspection fixture technology, specifically to an inspection fixture for reinforcing steel sheet misalignment. It includes a base and a support plate on the base. A placement groove is provided in the middle of the support plate. The fixture also includes a negative pressure generator located at the lower end of the support plate, with its adsorption end extending into the placement groove. The placement groove in the middle of the support plate is used to accommodate and prevent the reinforcing steel sheet to be inspected from being obstructed. Support bars are provided to lift the reinforcing steel sheet, ensuring that the flexible circuit board and its reinforcing steel sheet can be evenly flattened under the negative pressure adsorption effect of the negative pressure generator. Simultaneously, due to the different number of positioning posts on both sides, the operator can only position the reinforcing steel sheet to be inspected in the only correct direction, effectively avoiding mis-inspection and production waste caused by incorrect orientation. This fixture can achieve stable positioning while also eliminating warping or deformation that may occur due to the flexibility of the flexible circuit board, greatly improving the accuracy and consistency of inspection results.
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Description

Technical Field

[0001] This utility model relates to the field of inspection fixture technology, and in particular to an inspection fixture for reinforcing steel sheet misalignment. Background Technology

[0002] Reinforcing steel sheets are rigid plates that are attached to specific parts of flexible circuit boards. They are mainly used to increase the thickness, rigidity and flatness of local areas of the flexible circuit board to facilitate the installation and assembly of subsequent components and to prevent the flexible circuit board from bending. In some cases, they also serve the functions of heat dissipation, electrical conductivity and grounding. Reinforcing steel sheets need to be precisely positioned. Existing inspection fixtures usually use a tray with a cover plate with an inspection groove for inspection.

[0003] For example, utility model patent application number 202023225414.4 discloses a 3D steel sheet reinforcement misalignment inspection fixture, including a base, a support plate covering the base and a cover plate covering the support plate, and at least three positioning posts on each of the opposite sides of the base. The cover plate also has multiple inspection slots penetrating the cover plate, which effectively prevents the support plate and cover plate from being assembled in the wrong direction, improves inspection efficiency and prevents damage to qualified products. However, during each inspection, there will be a small gap between the positioning posts and the reinforcement steel sheet, so the positioning of the reinforcement steel sheet to be inspected is unstable. The resulting movement deviation will directly mask the allowable tolerance of the reinforcement steel sheet itself, thus affecting the accuracy of the inspection results. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a fixture for inspecting the misalignment of reinforcing steel sheets, so as to solve the technical problem that in the prior art, the positioning columns all have a small gap relative to the reinforcing steel sheet, so the positioning of the reinforcing steel sheet to be inspected is unstable, and the resulting motion deviation will directly cover the allowable tolerance of the reinforcing steel sheet itself, thus affecting the accuracy of the inspection results.

[0005] To achieve the above objectives, this utility model provides a fixture for inspecting the misalignment of reinforcing steel sheets, including a base and a support plate disposed on the base. The support plate has a placement groove in its center. The fixture also includes:

[0006] A negative pressure generator is provided at the lower end of the tray, and the suction end of the negative pressure generator extends into the placement groove;

[0007] Several support bars are provided in the placement groove, reinforcing steel sheets are placed on the support bars, and positioning posts are provided on the support bars on both sides, with different numbers of positioning posts on each side;

[0008] A flip frame hinged to one side of the base;

[0009] An inspection component used to check whether reinforcing steel sheets are misaligned.

[0010] Furthermore, the base is provided with several mounting holes, and the negative pressure generator is adjustablely positioned within the mounting holes.

[0011] Furthermore, the inspection component includes:

[0012] Several guide cylinders are provided on both sides of the flipping frame. The guide cylinders correspond to the inspection holes of the reinforcing steel sheets to be inspected. The side ends of the guide cylinders are provided with sliding grooves.

[0013] A slider is disposed within the groove, with both sides of the slider extending outward from the outside of the groove;

[0014] A go gauge is slidably disposed inside the guide cylinder, with the lower inspection end of the go gauge extending out of the guide cylinder;

[0015] One end of the tension spring is connected to both sides of the slider, and the other end of the tension spring is connected to the flipping frame.

[0016] Furthermore, the flipping frame is a split structure, and a handle is provided at the joint of the split structure at the upper end of the flipping frame.

[0017] Furthermore, a T-shaped plate can be detachably provided on the other side of the junction of the upper end of the flipping frame and the split structure, and a connector is hinged to the other side of the T-shaped plate.

[0018] Furthermore, a base is detachably mounted on the upper end of the tray, and the connector is detachably mounted on the base.

[0019] Furthermore, both the lower end of the flipping frame and the lower end of the T-shaped plate are provided with cushioning pads.

[0020] Furthermore, the placement groove has several threaded holes, and the support bar is detachably installed in the threaded holes by bolts.

[0021] The beneficial effects of this utility model are as follows: In use, the placement groove in the middle of the tray is used to accommodate and prevent the reinforcing steel sheet to be inspected from being left empty. The support bar can lift the reinforcing steel sheet, ensuring that the flexible circuit board and the reinforcing steel sheet on it can be evenly flattened under the negative pressure adsorption effect of the negative pressure generator. At the same time, due to the different number of positioning posts on both sides, the operator can only position the reinforcing steel sheet to be inspected in the only correct direction, which effectively avoids mis-inspection and production waste caused by reverse orientation. This fixture can achieve stable positioning and eliminate the warping or deformation that may occur due to the flexibility of the flexible circuit board itself, which greatly improves the accuracy and consistency of the inspection results. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the assembly of the tray and support strip in this utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the flipping frame in this utility model;

[0026] Figure 4 This is an assembly diagram of the flipping frame and inspection components in this utility model.

[0027] The diagram is marked as follows:

[0028] 1. Base; 2. Support plate; 3. Placement slot; 4. Negative pressure generator; 5. Support bar; 6. Positioning column; 7. Tilting frame; 8. Mounting hole; 9. Guide cylinder; 10. Slide groove; 11. Slider; 12. Go gauge; 13. Tension spring; 14. Handle; 15. T-shaped plate; 16. Connector; 17. Base; 18. Buffer pad. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0030] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0031] The first aspect of this utility model proposes a fixture for inspecting the misalignment of reinforcing steel sheets, such as... Figure 1-4 As shown, the fixture includes a base 1 and a support plate 2 mounted on the base 1. A placement groove 3 is provided in the middle of the support plate 2. The inspection fixture also includes:

[0032] A negative pressure generator 4 is located at the lower end of the tray 2. The preferred model of the negative pressure generator 4 is M5L. The adsorption end of the negative pressure generator 4 extends to the placement groove 3.

[0033] Several support bars 5 are placed in the placement groove 3, and reinforcing steel sheets are placed on the support bars 5. Positioning posts 6 are set on the support bars 5 on both sides, and the number of positioning posts 6 on both sides is different.

[0034] A flip frame 7 is hinged to one side of the base 1;

[0035] An inspection component used to check whether reinforcing steel sheets are misaligned.

[0036] In this embodiment, during use, the placement groove 3 in the middle of the tray 2 is used to accommodate and prevent the reinforcing steel sheet to be inspected from being left empty. The support bar 5 can lift the reinforcing steel sheet, ensuring that the flexible circuit board and the reinforcing steel sheet on it can be evenly flattened under the negative pressure adsorption effect of the negative pressure generator 4. At the same time, since the number of positioning posts 6 on both sides is different, the operator can only position and place the reinforcing steel sheet to be inspected in the only correct direction, which effectively avoids mis-inspection and production waste caused by reverse orientation.

[0037] In this embodiment, as Figure 2 As shown, the base 1 has several mounting holes 8 evenly distributed. The negative pressure generator 4 can be adjusted and installed in the mounting holes 8. The negative pressure generator 4 can be selectively installed in different mounting holes 8 and fixed in position by nuts, etc., so that the position of the negative pressure adsorption point can be flexibly adjusted according to the size and shape of different workpieces, ensuring that the best adsorption force can always be provided to the center or key parts of the workpiece.

[0038] In this embodiment, as Figure 4 As shown, the inspection components include:

[0039] Several guide cylinders 9 are provided on both sides of the flipping frame 7. The guide cylinders 9 correspond to the inspection holes of the reinforcing steel sheets to be inspected. The side ends of the guide cylinders 9 are provided with sliding grooves 10.

[0040] A slider 11 is provided in the slide groove 10, and both sides of the slider 11 extend out of the outside of the slide groove 10.

[0041] The gauge 12 is slidably installed inside the guide cylinder 9, with the lower inspection end of the gauge 12 extending out of the guide cylinder 9;

[0042] One end of the tension spring 13 is connected to both sides of the slider 11, and the other end of the tension spring 13 is connected to the flipping frame 7. If the gauge 12 can pass through the inspection hole of the reinforcing steel sheet to be inspected, it is judged as a qualified product. If it cannot pass through the inspection hole of the reinforcing steel sheet to be inspected smoothly, the slider 11 slides upward in the slide groove 10, and the tension spring 13 is stretched by force. The inspection result can be clearly seen visually.

[0043] In this embodiment, as Figure 3 , Figure 4 As shown, the flipping frame 7 has a split structure. The upper end of the flipping frame 7 is provided with a handle 14 at the junction of the split structure, which reduces the manufacturing difficulty and cost of the fixture and facilitates replacement and disassembly.

[0044] In this embodiment, as Figure 3 , Figure 4 As shown, a T-shaped plate 15 can be detachably provided on the other side of the joint of the split structure at the upper end of the flipping frame 7. A connector 16 is hinged to the other side of the T-shaped plate 15. When the connector 16 is combined with the base 17, the position of the entire flipping frame 7 and the inspection components is completely determined, eliminating possible shaking or secondary deviation, ensuring the repeatability of the positioning accuracy of the gauge 12 during each inspection, and achieving highly reliable inspection results.

[0045] In this embodiment, as Figure 3 As shown, a base 17 is detachably mounted on the upper end of the tray 2, and a connector 16 is detachably mounted on the base 17. The detachable design facilitates the assembly and adjustment of the fixture.

[0046] In this embodiment, as Figure 4 As shown, buffer pads 18 are provided at the lower end of the tilting frame 7 and the lower end of the T-shaped plate 15, which effectively reduce the impact and vibration of the tilting frame 7 during the opening and closing process. This avoids the jig from losing precision due to frequent impacts.

[0047] In this embodiment, as Figure 2 As shown, the placement groove 3 has several threaded holes, and the support bar 5 is detachably installed in the threaded holes by bolts, which improves the versatility of the fixture and enables it to quickly respond to the product changeover requirements of the production line.

[0048] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention includes the claims being limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0049] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fixture for inspecting the misalignment of reinforcing steel sheets, comprising a base (1) and a support plate (2) disposed on the base (1), characterized in that, The tray (2) has a placement groove (3) in the middle, and the inspection fixture also includes: A negative pressure generator (4) is provided at the lower end of the tray (2), and the adsorption end of the negative pressure generator (4) extends to the placement groove (3). A number of support bars (5) are provided in the placement groove (3), and reinforcing steel sheets are placed on the support bars (5). Positioning posts (6) are provided on the support bars (5) on both sides, and the number of positioning posts (6) on both sides is different. A flip frame (7) hinged to one side of the base (1); An inspection component used to check whether reinforcing steel sheets are misaligned.

2. The reinforcing steel sheet misalignment inspection fixture according to claim 1, characterized in that, The base (1) has several mounting holes (8) evenly distributed on it, and the negative pressure generator (4) can be adjusted and installed in the mounting holes (8).

3. The reinforcing steel sheet misalignment inspection fixture according to claim 1, characterized in that, The inspection components include: Several guide cylinders (9) are provided on both sides of the flipping frame (7). The guide cylinders (9) correspond to the inspection holes of the reinforcing steel sheets to be inspected. The side ends of the guide cylinders (9) are provided with grooves (10). A slider (11) is provided in the groove (10), and the two sides of the slider (11) extend out of the outside of the groove (10); A gauge (12) is slidably disposed inside the guide cylinder (9), with the lower inspection end of the gauge (12) extending out of the guide cylinder (9). One end of the tension spring (13) is connected to both sides of the slider (11), and the other end of the tension spring (13) is connected to the flipping frame (7).

4. The reinforcing steel sheet misalignment inspection fixture according to claim 1, characterized in that, The flipping frame (7) is a split structure, and a handle (14) is provided at the junction of the split structure at the upper end of the flipping frame (7).

5. The reinforcing steel sheet misalignment inspection fixture according to claim 4, characterized in that, The upper end of the flipping frame (7) is detachably provided with a T-shaped plate (15) on the other side of the junction of the split structure, and a connector (16) is hinged to the other side of the T-shaped plate (15).

6. The reinforcing steel sheet misalignment inspection fixture according to claim 5, characterized in that, The upper end of the tray (2) is detachably mounted with a base (17), and the connector (16) is detachably mounted on the base (17).

7. The reinforcing steel sheet misalignment inspection fixture according to claim 5, characterized in that, The lower end of the flipping frame (7) and the lower end of the T-shaped plate (15) are both provided with cushioning pads (18).

8. The reinforcing steel sheet misalignment inspection fixture according to claim 1, characterized in that, The placement groove (3) has several threaded holes, and the support bar (5) is detachably installed in the threaded holes by bolts.