An easy-to-use arc gauge for inspecting automotive sheet metal parts

By using a detection probe and ruler to detect gaps in an automotive sheet metal parts inspection device, combined with an adsorption mesh and vibration generator to remove iron filings, the problems of large-radius detection gaps and iron filings residue are solved, improving the accuracy and stability of the inspection.

CN224317038UActive Publication Date: 2026-06-02HANGZHOU ZHILING MASCH & EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU ZHILING MASCH & EQUIP CO LTD
Filing Date
2025-08-19
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing automotive sheet metal part curvature detection devices cannot detect gap distances when detecting large curvatures, and residual iron filings on the sheet metal parts affect the accuracy of the detection.

Method used

Multiple detection probes and rulers are used to detect the gap distance, and iron filings are removed by adsorption mesh and sinking trough structure, combined with vibration generator and suction cup to fix sheet metal parts.

Benefits of technology

It enables precise detection of large-radius gaps and effective removal of iron filings, improving the stability and accuracy of the detection.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model belongs to the field of automotive sheet metal processing technology, specifically a convenient-to-operate arc-shaped inspection tool for automotive sheet metal parts. It includes a machine body, with a first arc-shaped clamping block slidably disposed on the end face of the machine body. A second arc-shaped clamping block is slidably disposed on one side of the first arc-shaped clamping block. Inspection probes are slidably disposed inside the first and second arc-shaped clamping blocks. A stop is disposed on one side of the inspection probe, and a return spring is disposed on one side of the stop. A distance detector is disposed inside the first and second arc-shaped clamping blocks. This utility model, by incorporating multiple inspection probes and a scale, solves the problem that existing devices cannot detect the distance between the sheet metal parts and the inspection device due to a certain gap. By setting up structures such as an adsorption mesh and a sinking groove, it can shake off impurities and metal scraps adhering to the bottom of the sheet metal parts, solving the problem that iron filings carried by the sheet metal parts remain on the inspection table, affecting subsequent inspections.
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Description

Technical Field

[0001] This utility model belongs to the field of automotive sheet metal processing technology, and in particular relates to a convenient-to-operate arc gauge for inspecting automotive sheet metal parts. Background Technology

[0002] In actual use, automotive sheet metal parts often need to be bent according to the product's usage requirements. In order to ensure that the curvature of the bending meets the usage requirements, it is necessary to inspect the bending condition of the sheet metal parts to determine whether it meets the usage standards. Currently, when inspecting the curvature of automotive sheet metal parts, most of the time it is done manually by using a ruler to measure the inner and outer curvatures separately. Therefore, there is a need for a convenient and easy-to-use curvature inspection tool for automotive sheet metal parts.

[0003] Patent CN220120004U discloses a convenient-to-operate arc-shaped inspection tool for inspecting automotive sheet metal parts. It includes a fixed base, positioning mechanisms on the surfaces of the top frame and the partition plate, auxiliary clamping mechanisms on the surfaces of the first and second arc-shaped plates, and anti-displacement mechanisms on both sides of the fixed base. This invention not only prevents displacement of the arc-shaped inspection tool during sheet metal part inspection but also makes it more convenient and easier to operate. It allows for precise positioning of the sheet metal part during inspection, ensuring accuracy and preventing displacement or skew. Furthermore, it guarantees effective inspection results.

[0004] In existing technologies, anti-displacement mechanisms can prevent sheet metal parts from shifting during inspection. However, the following problems still exist in the overall usage: When the existing inspection device detects the curvature of sheet metal parts, if the curvature is too large, there will be a certain gap between the sheet metal parts and the inspection device, and the existing device cannot detect the distance of the gap; secondly, after the existing device inspects the sheet metal parts, the iron filings carried by the sheet metal parts will remain on the inspection table, causing the sheet metal parts to be lifted by the iron filings during subsequent inspections, resulting in an unbalanced state and affecting the accuracy of the inspection information. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, this utility model provides a convenient-to-operate arc-shaped inspection tool for automotive sheet metal parts. By setting multiple inspection probes and observing the scale on the surface of the inspection probes, it can detect the gap distance between the first arc-shaped clamping block and the sheet metal part, solving the problem that existing devices cannot detect the gap distance when there is a certain gap between the sheet metal part and the inspection device. By setting up structures such as an adsorption mesh plate and a sinking groove, it can shake off impurities and metal scraps adhering to the bottom of the sheet metal part, solving the problem that iron filings carried by the sheet metal part will remain on the inspection table and affect subsequent inspections.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a convenient-to-operate arc-shaped inspection tool for automotive sheet metal parts, comprising a body, a first arc-shaped clamping block slidably disposed on the end face of the body, a second arc-shaped clamping block slidably disposed on one side of the first arc-shaped clamping block, multiple detection probes slidably disposed inside the first and second arc-shaped clamping blocks, a stop block disposed on one side of each of the multiple detection probes, a return spring disposed on one side of each of the multiple stop blocks, one end of each of the multiple return springs being fixedly connected to the inner wall of the first and second arc-shaped clamping blocks respectively, multiple distance detectors disposed inside the first and second arc-shaped clamping blocks respectively, the multiple distance detectors being respectively disposed corresponding to the multiple detection probes, and an arc-shaped detector slidably disposed on the end face of the first and second arc-shaped clamping blocks.

[0007] Preferably, two positioning blocks are slidably disposed on the end face of the machine body, the two positioning blocks can position the sheet metal parts, and a vibration generator is disposed on the end face of each of the two positioning blocks.

[0008] Preferably, a mounting plate is provided on the end face of the machine body, and multiple suction cups are provided on the end face of the mounting plate, which can fix the sheet metal parts.

[0009] Preferably, two sinking troughs are provided on the end face of the machine body, and an adsorption mesh plate is provided on the end face of each of the two sinking troughs. A collection box is provided at the bottom of the two sinking troughs, and a vacuum cleaner is provided on one side of the collection box. A connection hole is provided on the outer surface of each of the two sinking troughs.

[0010] Preferably, a bidirectional threaded rod is rotatably provided between the two sinking troughs, and two second threaded sliders are slidably provided on the end face of the bidirectional threaded rod, with the two second threaded sliders respectively fixedly connected to the positioning block.

[0011] Preferably, the outer surface of each of the plurality of detection probes is provided with a scale, and one end of each of the plurality of detection probes is provided with a rubber head.

[0012] Preferably, the bottom of the mounting plate is provided with a flow divider seat, the flow divider seat is connected to multiple suction cups, and the bottom of the flow divider seat is connected to a vacuum generator.

[0013] Preferably, the machine body has two unidirectional threaded rods rotatably arranged inside, and the outer surfaces of the two unidirectional threaded rods are slidably provided with first threaded sliders, and the two first threaded sliders are respectively fixedly connected to a first arc-shaped clamping block and a second arc-shaped clamping block.

[0014] In summary, compared with existing technologies, the beneficial effects of this solution are as follows:

[0015] (1) By setting up a first arc-shaped clamping block and a second arc-shaped clamping block, as well as a detection probe and an arc detector, this utility model can detect the arc of sheet metal parts by using an arc detector. At the same time, when detecting sheet metal parts, by setting up multiple detection probes and observing the scale on the surface of the detection probes, the gap distance between the first arc-shaped clamping block and the sheet metal parts can be detected. In addition, by setting up rubber heads, the sheet metal parts can be clamped and fixed while the sheet metal parts are being detected, thereby improving the stability of the device.

[0016] (2) By setting up an adsorption mesh plate, a sinking trough, a vibration generator, and a collection box, the two positioning blocks can vibrate the sheet metal parts by starting the vibration generator when positioning the sheet metal parts, thereby shaking off the impurities and metal scraps adhering to the bottom of the sheet metal parts. The impurities are then allowed to enter the sinking trough through the adsorption mesh plate. At the same time, the collection box can adsorb and clean the inside of the sinking trough, preventing metal scraps from remaining on the surface of the machine body and affecting the inspection of the sheet metal parts. The suction cup can fix the sheet metal parts, improving the stability of the sheet metal parts during inspection. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present utility model;

[0018] Figure 2 This is a front view of the present invention;

[0019] Figure 3 for Figure 2 A three-dimensional sectional view at point AA;

[0020] Figure 4 for Figure 3 A magnified view of a section at point B in the middle;

[0021] Figure 5 for Figure 3 A magnified view of a section at point C;

[0022] In the diagram: 10. Body, 11. First arc-shaped clamp, 12. Slide rail, 13. Electric slider, 14. Arc detector, 15. Second arc-shaped clamp, 16. Detection probe, 17. Reset spring, 18. Distance detector, 19. Scale, 20. Rubber head, 21. One-way threaded rod, 22. First threaded slider, 23. First motor, 24. Two-way threaded rod, 25. Second motor, 26. Positioning block, 27. Vibration generator, 28. Second threaded slider, 29. Control terminal, 30. Mounting plate, 31. Suction cup, 32. Adsorption mesh plate, 33. Collection box, 34. Vacuum cleaner, 35. Vacuum generator, 36. Sinking tank, 37. Diverter seat, 38. Connecting hole, 39. Stop. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The device includes a body 10. Inside the body 10, two one-way threaded rods 21 are rotatably arranged. The two one-way threaded rods 21 are symmetrically arranged. One end of each one-way threaded rod 21 is connected to a first motor 23 on the outer surface of the body 10. The output shafts of the two first motors 23 are respectively connected to the two one-way threaded rods 21. A first threaded slider 22 is slidably arranged on the outer surface of each of the two one-way threaded rods 21. One end face of one of the first threaded sliders 22 is provided with an arc-shaped first arc-shaped clamping block 11. A second arc-shaped clamping block 15 is slidably arranged on one side of the first arc-shaped clamping block 11. The end face of the other first threaded slider 22 is fixedly connected to the second arc-shaped clamping block 15. The opposite sides of block 11 and the second arc-shaped clamping block 15 are curved surfaces, and the curved surfaces correspond to the sheet metal parts to be inspected. It should be noted that both arc-shaped clamping blocks are detachable structures. During each inspection, the appropriate arc-shaped clamping block is selected for assembly and use according to the curvature of the different sheet metal parts. According to actual needs, multiple detection probes 16 are slidably arranged inside the first arc-shaped clamping block 11 and the second arc-shaped clamping block 15. Each of the multiple detection probes 16 has a stop 39 on one side. By setting multiple stop blocks 39, the movement of the detection probes 16 can be restricted, preventing the detection probes 16 from detaching from the first arc-shaped clamping block 11 or the second arc-shaped clamping block 15, thereby improving the stability of the device.

[0025] Each of the multiple stops 39 is provided with a return spring 17 on one side. One end of the multiple return springs 17 is fixedly connected to the inner wall of the first arc-shaped clamp 11 and the second arc-shaped clamp 15 respectively. Multiple distance detectors 18 are provided inside the first arc-shaped clamp 11 and the second arc-shaped clamp 15 respectively. The multiple distance detectors 18 are respectively set with multiple detection probes 16. By setting the distance detectors 18, the moving distance of the probes 16 can be detected, thereby detecting the distance between the first arc-shaped clamp 11 and the sheet metal part. One end of the multiple distance detectors 18 is provided with a control terminal 29 on the end face of the machine body 10. The multiple distance detectors 18 are electrically connected to the control terminal 29.

[0026] When inspecting sheet metal parts, the sheet metal parts are first placed between the first arc-shaped clamping block 11 and the second arc-shaped clamping block 15. Then, the two first motors 23 are started through the control terminal 29. The two first motors 23 drive the two one-way threaded rods 21 to rotate, which in turn drive the first threaded sliders 22 on the outer surface to move. During the movement of the two first threaded sliders 22, the first arc-shaped clamping blocks 11 and the second arc-shaped clamping blocks 15 on the top are moved respectively, so that the first arc-shaped clamping blocks 11 and the second arc-shaped clamping blocks 15 move relative to each other, clamping and fixing the sheet metal parts. At the same time, during the movement of the first arc-shaped clamping blocks 11 and the second arc-shaped clamping blocks 15, the detection probes 16 on the surface of the sheet metal parts come into contact with the outer surface of the sheet metal parts. As the first arc-shaped clamping blocks 11 and the second arc-shaped clamping blocks 15 move, the sheet metal parts continuously press the detection probes 16, causing the detection probes 16 to slide into the interior of the first arc-shaped clamping blocks 11. At the same time, the stop block 39 presses the return spring 17 on one side until it is fully closed. One of the detection probes 16 contacts the distance detector 18. After the distance detector 18 detects the contact of the detection probe 16, it sends information to the control terminal 29 and stops the one-way threaded rod 21. Subsequently, the control terminal 29 collects the position information of the detection points of multiple detection probes 16 through the distance detector 18, thereby detecting the gap distance between the sheet metal part and the first arc-shaped clamp 11 and the second arc-shaped clamp 15, so as to better control the information of the outer surface of the sheet metal part. The outer surface of multiple detection probes 16 is provided with a scale 19. The scale 19 makes it easy for the staff to intuitively observe the distance between the first arc-shaped clamp 11 and the sheet metal part. One end of multiple detection probes 16 is provided with a rubber head 20. When the detection probe 16 contacts the outer surface of the sheet metal part, the rubber head 20 at one end of the detection probe 16 contacts the sheet metal part first, thereby increasing the friction between the detection probe 16 and the sheet metal part. The rubber head 20 can also prevent the detection probe 16 from scratching the sheet metal part, thereby improving the stability of the device.

[0027] Further reference Figure 1On the end face of the machine body 10, both the first arc-shaped clamping block 11 and the second arc-shaped clamping block 15 are provided with slide rails 12. Both slide rails 12 are slidably provided with electric sliders 13. Both electric sliders 13 are provided with arc detectors 14 on their outer surfaces. After the first arc-shaped clamping block 11 and the second arc-shaped clamping block 15 clamp the sheet metal part, the two arc detectors 14 are activated through the control terminal 29. After the two arc detectors 14 are activated, they detect the arc of the outer surface of the sheet metal part.

[0028] Further reference Figure 2 , Figure 3 and Figure 5 Two recessed grooves 36 are provided on the end face of the body 10. Adsorption mesh plates 32 are provided on the end face of each recessed groove 36. A collection box 33 is connected to the bottom of the two recessed grooves 36. A vacuum cleaner 34 is provided on one side of the collection box 33. A connecting hole 38 is provided on the outer surface of each recessed groove 36. A bidirectional threaded rod 24 is rotatably provided between the two recessed grooves 36. A second motor 25 is provided at one end of the bidirectional threaded rod 24 on the outer surface of the body 10. The output shaft of the second motor 25 is connected to the bidirectional threaded rod 24 for transmission. Two second threaded sliders 28 are slidably provided on the end face of the bidirectional threaded rod 24. A positioning block 26 is provided on the end face of each second threaded slider 28. The two positioning blocks 26 can position the sheet metal parts. A vibration generator 27 is provided on the end face of each positioning block 26. The vibration generator 27 can vibrate the sheet metal parts fixed by the positioning blocks 26, thereby shaking off the dust and iron filings adhering to the surface of the sheet metal parts.

[0029] Before inspecting the sheet metal parts, the second motor 25 is started via the control terminal 29, causing the second motor 25 to drive the bidirectional threaded rod 24 to rotate. After the bidirectional threaded rod 24 rotates, the two second threaded sliders 28 on its surface move, causing the two second threaded sliders 28 to drive the two positioning blocks 26 to move relative to each other, thereby positioning the sheet metal parts. After positioning is completed, the vacuum cleaner 34 is started. The vacuum cleaner 34 extracts the air inside the collection box 33, thereby adsorbing the impurities and iron filings inside the sink trough 36. The impurities and iron filings are adsorbed into the collection box 33 through the adsorption mesh plate 32. The collection box 33 is equipped with a filter mesh plate, which collects the debris inside the collection box 33 for collection and processing. At the same time, the connecting hole 38 can be used to clean the outer surface of the bidirectional threaded rod 24 and the outer surface of the unidirectional threaded rod 21, preventing dust from adhering to the outer surface of the unidirectional threaded rod 21 and the bidirectional threaded rod 24 and affecting the transmission effect, thereby improving the stability of the device. It should be noted that although the bidirectional threaded rod 24 and the unidirectional threaded rod 21 are equipped with dust-collecting structures to absorb dust and debris, in actual operation, workers can selectively install retractable and foldable protective sleeves on the outside of multiple threaded rods to prevent debris from entering and ensure service life. Considering that this is existing technology, this application will not describe or draw it in detail.

[0030] Further reference Figure 1 , Figure 2 , Figure 3 and Figure 4 A mounting plate 30 is provided on the end face of the machine body 10. Multiple suction cups 31 are provided on the end face of the mounting plate 30. The multiple suction cups 31 can fix sheet metal parts. A flow divider 37 is provided at the bottom of the mounting plate 30. The flow divider 37 is connected to the multiple suction cups 31. A vacuum generator 35 is connected to the bottom of the flow divider 37. After the sheet metal parts are cleaned, the vacuum generator 35 is activated, which activates the suction cups 31 through the flow divider 37. The suction cups 31 adsorb and fix the sheet metal parts on the upper end face, preventing the sheet metal parts from shaking during the inspection. At the same time, the adsorption mesh plate 32 can adsorb impurities and dust on the end face of the mounting plate 30, preventing impurities and dust from affecting the use of the suction cups 31 and effectively improving the service life of the device.

[0031] This utility model discloses a convenient-to-operate arc gauge for inspecting automotive sheet metal parts. Its installation and connection methods are all common mechanical methods. The control of the driving component by similar inspection components, as well as the related inspection methods and specific circuit relationships of each inspection component, can all adopt conventional electrical control technology. As long as the corresponding motion relationship can be completed and its beneficial effect can be achieved, it can be implemented. The control terminal 29, first motor 23, second motor 25, arc detector 14, suction cup 31, vacuum cleaner 34, vacuum generator 35, etc. in this convenient-to-operate arc gauge for inspecting automotive sheet metal parts are all purchased from the market. Technicians in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0032] The specification and claims use certain terms to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0033] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0034] The foregoing description illustrates and describes several preferred embodiments of this application. However, as previously stated, it should be understood that this application is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the application concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this application should be within the protection scope of the appended claims.

Claims

1. A convenient-to-operate arc gauge for inspecting automotive sheet metal parts, comprising a body (10), characterized in that, A first arc-shaped clamping block (11) is slidably disposed on the end face of the body (10). A second arc-shaped clamping block (15) is slidably disposed on one side of the first arc-shaped clamping block (11). Multiple detection probes (16) are slidably disposed inside the first arc-shaped clamping block (11) and the second arc-shaped clamping block (15). A stop (39) is disposed on one side of each of the multiple detection probes (16). A reset spring (17) is disposed on one side of each of the multiple stop (39). One end of each of the multiple reset springs (17) is fixedly connected to the inner wall of the first arc-shaped clamping block (11) and the second arc-shaped clamping block (15). Multiple distance detectors (18) are disposed inside the first arc-shaped clamping block (11) and the second arc-shaped clamping block (15). The multiple distance detectors (18) are respectively disposed corresponding to the multiple detection probes (16). An arc detector (14) is slidably disposed on the end face of the first arc-shaped clamping block (11) and the second arc-shaped clamping block (15).

2. The convenient-to-operate arc gauge for inspecting automotive sheet metal parts according to claim 1, characterized in that, Two positioning blocks (26) are slidably arranged on the end face of the machine body (10). The two positioning blocks (26) can position the sheet metal parts. A vibration generator (27) is provided on the end face of each of the two positioning blocks (26).

3. The convenient-to-operate arc gauge for inspecting automotive sheet metal parts according to claim 1, characterized in that, A mounting plate (30) is provided on the end face of the body (10), and a plurality of suction cups (31) are provided on the end face of the mounting plate (30), which can fix sheet metal parts.

4. The convenient-to-operate arc gauge for inspecting automotive sheet metal parts according to claim 1, characterized in that, Two sinking grooves (36) are provided on the end face of the body (10). An adsorption mesh plate (32) is provided on the end face of each sinking groove (36). A collection box (33) is connected to the bottom of the two sinking grooves (36). A vacuum cleaner (34) is provided on one side of the collection box (33). A connection hole (38) is provided on the outer surface of each sinking groove (36).

5. The convenient-to-operate arc gauge for inspecting automotive sheet metal parts according to claim 4, characterized in that, A bidirectional threaded rod (24) is rotatably provided between the two sinking grooves (36), and two second threaded sliders (28) are slidably provided on the end face of the bidirectional threaded rod (24), and the two second threaded sliders (28) are respectively fixedly connected to the positioning block (26).

6. The convenient-to-operate arc gauge for inspecting automotive sheet metal parts according to claim 1, characterized in that, Each of the multiple detection probes (16) has a scale (19) on its outer surface and a rubber head (20) at one end of each of the multiple detection probes (16).

7. The convenient-to-operate arc gauge for inspecting automotive sheet metal parts according to claim 3, characterized in that, The bottom of the mounting plate (30) is provided with a flow divider (37), which is connected to a plurality of suction cups (31), and a vacuum generator (35) is connected to the bottom of the flow divider (37).

8. The convenient-to-operate arc gauge for inspecting automotive sheet metal parts according to claim 1, characterized in that, The body (10) has two unidirectional threaded rods (21) inside, and the outer surfaces of the two unidirectional threaded rods (21) are slidably provided with first threaded sliders (22). The two first threaded sliders (22) are fixedly connected to the first arc-shaped clamp (11) and the second arc-shaped clamp (15) respectively.