Threaded hole location degree detection and threaded hole glue overflow detection equipment

Abstract

A threaded hole location degree detection and threaded hole glue overflow detection device comprises a base, and the base is provided with a first linear module which is arranged on the base in a manner of extending along a first set direction; the jig plate is used for fixing a workpiece to be detected; the detection assembly is used for carrying out position degree and glue overflow detection on a workpiece positioned on the jig plate, and the detection assembly comprises a second linear module, a visual detection unit and a glue overflow detection unit. The detection of the position degree and the glue overflowing condition of the workpiece to be detected can be completed at the same time, so that the labor input is reduced, and the detection precision can be ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of quality inspection equipment for workpiece threaded holes, and in particular to a threaded hole position detection and threaded hole adhesive overflow detection equipment. Background Technology

[0002] Currently, car sales are gradually increasing, and car quality is also gradually improving. The quality and precision requirements for some car parts are constantly rising. Some car components have threaded holes for interconnection. If the position of these threaded holes is inaccurate, it will affect the precision of the assembly, leading to large gaps or deformation in the car's interior. Furthermore, threaded holes usually require adhesive to ensure sealing and the stability of the threaded connection. However, the amount of adhesive injected into the threaded holes before assembly is often not well controlled, resulting in excessive adhesive overflow. This will leave adhesive on the surface of the parts after assembly, affecting the aesthetics and cleanliness.

[0003] Currently, the positional accuracy of threaded holes is mostly determined by visual inspection using vision cameras. This is to check whether the relative position of the threaded holes is up to standard. However, when visually inspecting the glue content inside the threaded holes, ordinary vision cameras often do not meet the required precision, resulting in low accuracy. Therefore, manual visual inspection is used to determine whether there is any glue overflow. However, due to eye fatigue, the inspection may not be thorough.

[0004] Therefore, a new technical solution is urgently needed to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a device for detecting the position accuracy of threaded holes and for detecting excess adhesive in threaded holes, so as to overcome the defects mentioned in the background art.

[0006] A device for detecting the positional accuracy of a threaded hole and detecting excess adhesive in a threaded hole includes a base, on which are disposed:

[0007] A first linear module is disposed on the base, extending along a first predetermined direction;

[0008] A fixture plate is used to fix the workpiece to be tested. One end of the fixture plate is set on the first linear module and is driven by the first linear module to move back and forth along the first predetermined direction. The other end of the fixture plate is suspended above the base with a space between it and the base.

[0009] A detection component is provided for detecting the position and excess adhesive of a workpiece positioned on the fixture plate. The detection component includes a second linear module, a vision inspection unit, and an excess adhesive detection unit. The second linear module is suspended on the base by a bracket and extends along a second predetermined direction from one end of the first linear module. The vision inspection unit is disposed on the second linear module and reciprocates along the second predetermined direction under its drive. The vision inspection unit has a downward-facing detection lens. The excess adhesive detection unit is disposed side by side with the vision inspection unit on the second linear module and reciprocates synchronously with the vision inspection unit along the second predetermined direction under the drive of the second linear module. The excess adhesive detection unit includes a downward-facing detection probe.

[0010] Furthermore, a slide rail is provided on the base, which is parallel to the first linear module. The end of the fixture plate away from the first linear module is slidably connected to the base via a slider, so that the fixture plate moves back and forth along the first linear module under the drive of the first linear module.

[0011] Furthermore, a clearance space is provided on the fixture plate, the clearance space penetrates the fixture plate, and a positioning component is provided around the clearance space. The positioning component is used to clamp and position the workpiece to be processed, and to make the workpiece to be processed protrude downward in the clearance space.

[0012] Furthermore, the positioning component includes:

[0013] The base plate includes four components arranged around the four edges of the clearance space;

[0014] The support plate includes at least three plates and is fixedly mounted on the three base plates;

[0015] The limiting plate includes two plates located on two adjacent edges of the clearance space, and each plate is fixedly installed on the corresponding base plate.

[0016] The clamping member is disposed at the other two edges of the clearance space corresponding to the limiting plate and is movably disposed on the corresponding base plate. The clamping member includes a clamping block that is driven to the clamping cylinder and is driven by the clamping cylinder to reciprocate toward the corresponding limiting plate.

[0017] Furthermore, a connecting plate is installed on the second linear module, and the visual inspection unit and the glue overflow detection unit are installed side by side on the connecting plate;

[0018] The adhesive overflow detection unit includes:

[0019] The third linear module is arranged vertically on the connecting plate;

[0020] A linkage plate is slidably connected to the third linear module in a vertical direction, and the detection probe is mounted on the lower end of the linkage plate facing downward. The linkage plate reciprocates in a vertical direction under the drive of the third linear module.

[0021] Furthermore, a lower light source plate is also provided on the base, located below the detection component and corresponding to the clearance space, with the lower light source plate facing upwards to illuminate.

[0022] Furthermore, the first linear module and the second linear module are arranged in a horizontal direction, and the first predetermined direction and the second predetermined direction are arranged in a horizontal direction and perpendicular to each other.

[0023] Furthermore, a barcode scanner is also provided on the base. The barcode scanner is located at the end of the base away from the detection component, and the lens of the barcode scanner is located between the height interval between the base and the fixture plate.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0025] This invention provides a device for detecting the positional accuracy and adhesive overflow of threaded holes in automotive parts. This device allows for simultaneous detection of both the positional accuracy and adhesive overflow within the threaded holes after the workpiece is clamped and fixed. During the detection process, a vision inspection system visually inspects the workpiece to determine if the threaded holes are in their designated positions. Simultaneously, an adhesive overflow detection unit detects the adhesive overflow within the threaded holes. Specifically, a detection probe is inserted into the threaded hole to inspect the adhesive at the hole location to determine if adhesive overflow has occurred. This embodiment of the invention enables simultaneous detection of both the positional accuracy and adhesive overflow of the workpiece, reducing manual labor and ensuring detection accuracy.

[0026] In the specific inspection process, the first linear module transports the fixture plate to the end furthest from the inspection component and loads the workpiece to be inspected. The workpiece is positioned and clamped by the fixture plate. Subsequently, the first linear module conveys the fixture plate containing the workpiece towards the inspection component and performs inspection at the corresponding position. At this time, the second linear module moves the vision inspection unit along a predetermined direction to detect the position of the threaded holes on the workpiece. Simultaneously, the first and second linear modules cooperate to ensure the accuracy of the threaded hole detection. Because there is a gap between the fixture plate and the base, there is a certain degree of light transmission during the visual inspection of the workpiece, preventing the base plate from blocking the workpiece and causing insufficient light illumination, thus affecting the inspection accuracy. During the overflow glue detection process, the second and first linear modules cooperate to align the inspection probe with the threaded hole, allowing the probe to be inserted into the threaded hole to inspect the glue level inside and determine if glue has overflowed. By setting an inspection unit on the second linear module, the overflow of adhesive in the threaded hole can be detected while visually inspecting the workpiece. During the overflow inspection of the threaded hole, the detection probe can be used to detect the overflow, which can ensure the accuracy of the inspection, thereby reducing the labor intensity and ensuring the accuracy of the inspection.

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of this utility model.

[0029] Figure 2 This is a schematic diagram of the structure of this utility model with the workpiece to be tested loaded.

[0030] Figure 3 This is a schematic diagram of the structure of the first linear module and the fixture plate after assembly in this utility model.

[0031] Figure 4 This is a schematic diagram of the fixture plate in this utility model.

[0032] Figure 5 This is a schematic diagram of the detection component in this utility model.

[0033] Figure 6 This is a schematic diagram of the structure of the glue overflow detection unit and the second linear module in this utility model. Detailed Implementation

[0034] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0035] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0036] Furthermore, the use of terms such as "first" and "second" in the embodiments of this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0037] This utility model embodiment provides a device for detecting the positional accuracy and adhesive overflow of threaded holes in automotive parts. This device allows for simultaneous detection of threaded hole positional accuracy and adhesive overflow within the threaded holes after the workpiece is clamped and fixed. During the detection process, a vision inspection system visually inspects the workpiece to determine if the threaded hole position is within the predetermined location. Simultaneously, an adhesive overflow detection unit 430 detects adhesive overflow within the threaded hole. Specifically, a detection probe 431 is inserted into the threaded hole to detect the adhesive at the hole location, determining whether adhesive overflow has occurred. The technical solution provided in this embodiment can simultaneously detect both the positional accuracy and adhesive overflow of the workpiece, thereby reducing manual labor and ensuring detection accuracy.

[0038] Specifically, such as Figure 1-6This utility model provides a device for detecting the position of a threaded hole and detecting excess adhesive in a threaded hole. It includes a base 100, and a first linear module 200, a fixture plate 300, and a detection component 400 disposed on the base 100. The first linear module 200 extends along a first predetermined direction and is disposed on the base 100. The fixture plate 300 is used to fix the workpiece to be tested. One end of the fixture plate 300 is disposed on the first linear module and is driven by the first linear module to reciprocate along the first predetermined direction. The other end of the fixture plate 300 is suspended above the base 100 with a space between it and the base 100. The detection component 400 is used to detect the position and excess adhesive of the workpiece positioned on the fixture plate 300. The detection component 400 includes... The device includes a second linear module 410, a vision inspection unit 420, and an adhesive overflow detection unit 430. The second linear module 410 is suspended above the base 100 by a bracket 401 and is located at one end of the first linear module, extending along a second predetermined direction. The vision inspection unit 420 is disposed on the second linear module 410 and moves back and forth along the second predetermined direction under its drive. The vision inspection unit 420 has a detection lens 422 facing downward. The adhesive overflow detection unit 430 is disposed side by side with the vision inspection unit 420 on the second linear module 410 and moves back and forth synchronously with the vision inspection unit 420 along the second predetermined direction under the drive of the second linear module. The adhesive overflow detection unit 430 includes a detection probe 431 extending downward.

[0039] During the inspection process, the first linear module 200 transports the fixture plate 300 to the end away from the inspection component 400 and then loads the workpiece to be inspected. The workpiece is positioned and clamped by the fixture plate 300. Subsequently, the first linear module 200 transports the fixture plate 300 containing the workpiece to be inspected toward the inspection component 400 and performs inspection at the position corresponding to the inspection component 400. At this time, the second linear module 410 moves the vision inspection unit 420 along a second predetermined direction to perform positional inspection of the threaded holes on the workpiece. At the same time, the first linear module 200 and the second linear module 410 cooperate to ensure the accuracy of the corresponding position of the threaded holes. Since there is a gap between the fixture plate 300 and the base 100, there is a certain degree of light transmission during the visual inspection of the workpiece, avoiding the base plate 311 from blocking the workpiece and causing insufficient light illumination, which would affect the accuracy of the inspection. During the process of detecting excess adhesive on the workpiece, the second linear module 410 cooperates with the first linear module 200 to align the detection probe 431 with the threaded hole, facilitating the insertion of the detection probe 431 into the threaded hole to detect the amount of adhesive inside and determine if there is any overflow. By setting a visual inspection unit on the second linear module 410, the excess adhesive in the threaded hole can be detected simultaneously with the visual inspection of the workpiece. The detection probe 431 is used to probe during the excess adhesive detection process, ensuring high accuracy and reducing manual labor while maintaining inspection precision.

[0040] In this embodiment, the first linear module 200 and the second linear module 410 are arranged horizontally, and the first predetermined direction and the second predetermined direction are arranged horizontally and perpendicular to each other. Thus, driven by the first linear module 200 and the second module, the vision inspection unit 420 and the glue overflow detection unit 430 can move along two axes, enabling precise alignment of all threaded holes and ensuring inspection accuracy.

[0041] In this embodiment, as Figure 3As shown, to improve the stability of the jig plate 300's movement and ensure its stability while suspended above the base 100, a slide rail 101 parallel to the first linear module is provided on the base 100. The end of the jig plate 300 furthest from the first linear module 200 is slidably connected to the base 100 via a slider 102, allowing the jig plate 300 to reciprocate along the first linear module under its drive. The jig plate 300 moves along a predetermined direction under the drive of the first linear module 200. Simultaneously, the other end of the jig plate 300 is provided with the slide rail 101 and slider 102 forming a sliding pair, enabling both ends of the jig plate 300 to be supported and reciprocated, thereby improving the stability of the jig plate 300.

[0042] In this embodiment, as Figure 1 , 3 As shown in Figure 4, a clearance space 301 is provided on the fixture plate 300. The clearance space 301 penetrates the fixture plate 300, and a positioning component 310 is provided around the clearance space 301. The positioning component 310 is used to clamp and position the workpiece to be processed, and to make the workpiece to be processed protrude downward in the clearance space 301.

[0043] Meanwhile, in order to clamp the workpiece, the structure of the positioning component 310 in this embodiment is given as a specific example. The positioning component 310 includes a base plate 311, a support plate 312, a limiting plate 313, and a clamping member 314. The base plate 311 includes four plates arranged around the four edges of the clearance space 301. The support plate 312 includes at least three plates, which are fixedly mounted on the three base plates 311. The limiting plate 313 includes two plates located on two adjacent edges of the clearance space 301, which are fixedly mounted on the corresponding base plates 311. The clamping member 314 is located at the other two edges of the clearance space 301 corresponding to the limiting plate 313, and is movably mounted on the corresponding base plate 311. The clamping member 314 includes a clamping block 3141 that is driven to the clamping cylinder 3142, and the clamping block 3141 is driven by the clamping cylinder 3142 to reciprocate toward the corresponding limiting plate 313.

[0044] The support plate 312 is used to support the workpiece to be inspected. At least three support plates 312 can support the workpiece to be inspected and keep it in a stable state. The limiting member limits and fixes two adjacent surfaces of the workpiece. At the same time, the clamping block 3141 moves towards the corresponding limiting plate 313 under the drive of the clamping cylinder 3142, thereby clamping and fixing the workpiece to be inspected. At this time, the upper end of the clamped and fixed workpiece faces the inspection component 400, and the lower end is exposed in the clearance space 301, so that it can be transparent during the visual inspection process to ensure the accuracy of visual inspection.

[0045] In this embodiment, as Figure 5-6 As shown, a connecting plate 432 is mounted on the second linear module 410, and the vision inspection unit 420 and the glue overflow detection unit are mounted side by side on the connecting plate 432. Through the connecting plate 432, the second linear module 410 can simultaneously drive the vision inspection unit 420 and the glue overflow detection unit 430 to move simultaneously, avoiding interference during the inspection process and enabling separate positional and glue overflow detection. The glue overflow detection unit 430 includes a third linear module 434 and a linkage plate 433. The third linear module 434 is vertically mounted on the connecting plate 432; the linkage plate 433 is slidably connected to the third linear module 434 vertically, and the detection probe 431 is mounted downwards at the lower end of the linkage plate 433. The linkage plate 433 reciprocates vertically under the drive of the third linear module 434.

[0046] Driven by the combination of three linear modules, the detection probe 431 can reciprocate along the XYZ axes, thus ensuring the detection of adhesive overflow in the threaded hole. At the same time, the adhesive overflow detection unit 430 adopts the third linear module 434 to ensure the accuracy of its downward movement, thereby improving the accuracy of adhesive overflow detection in the threaded hole.

[0047] To further improve the detection accuracy of the workpiece threaded hole position, a lower light source plate 104 is provided on the base 100, located below the detection assembly 400 and corresponding to the clearance space 301. The lower light source plate 104 illuminates upwards. By providing the lower light source plate 104, the lower side of the workpiece can be illuminated during the detection process, and the light can be directed upwards through the threaded hole, facilitating capture by the detection lens 422 of the vision inspection unit 420 and improving detection accuracy. It is worth noting that the vision inspection unit 420 in this embodiment can be constructed using a vision camera.

[0048] To input information about the workpiece to be inspected, a barcode scanner 105 is installed on the base 100. The barcode scanner 105 is located at the end of the base 100 furthest from the inspection component, and its lens 422 is positioned between the height gap between the base 100 and the fixture plate 300. It is conceivable that, for the purpose of distinguishing and recording information about the workpiece to be inspected, a code recording identification information is set on the workpiece. The barcode scanner 105 scans the code on the workpiece to be inspected, thereby synchronizing the inspection result with the identification information of the workpiece.

[0049] For those skilled in the art, various other corresponding changes and modifications can be obtained based on the structure and principles disclosed in this utility model, and all such changes and modifications fall within the protection scope of this utility model.

Claims

1. A device for detecting the positional accuracy of a threaded hole and detecting excess adhesive in a threaded hole, comprising a base, characterized in that, The base is provided with: A first linear module is disposed on the base, extending along a first predetermined direction; A fixture plate is used to fix the workpiece to be tested. One end of the fixture plate is set on the first linear module and is driven by the first linear module to move back and forth along the first predetermined direction. The other end of the fixture plate is suspended above the base with a space between it and the base. A detection component is provided for detecting the position and excess adhesive of a workpiece positioned on the fixture plate. The detection component includes a second linear module, a vision inspection unit, and an excess adhesive detection unit. The second linear module is suspended on the base by a bracket and extends along a second predetermined direction from one end of the first linear module. The vision inspection unit is disposed on the second linear module and reciprocates along the second predetermined direction under its drive. The vision inspection unit has a downward-facing detection lens. The excess adhesive detection unit is disposed side by side with the vision inspection unit on the second linear module and reciprocates synchronously with the vision inspection unit along the second predetermined direction under the drive of the second linear module. The excess adhesive detection unit includes a downward-facing detection probe.

2. The thread hole position accuracy detection and thread hole adhesive overflow detection device according to claim 1, characterized in that, The base is also provided with a slide rail that is parallel to the first linear module. The end of the fixture plate away from the first linear module is slidably connected to the base via a slider, so that the fixture plate moves back and forth along the first linear module under the drive of the first linear module.

3. The thread hole position accuracy detection and thread hole adhesive overflow detection device according to claim 1, characterized in that, An clearance space is provided on the fixture plate, the clearance space penetrates the fixture plate, and a positioning component is provided around the clearance space. The positioning component is used to clamp and position the workpiece to be processed, and to make the workpiece to be processed protrude downward in the clearance space.

4. The thread hole position accuracy detection and thread hole adhesive overflow detection device according to claim 3, characterized in that, The positioning component includes: The base plate includes four components arranged around the four edges of the clearance space; The support plate includes at least three plates and is fixedly mounted on the three base plates; The limiting plate includes two plates located on two adjacent edges of the clearance space, and each plate is fixedly installed on the corresponding base plate. The clamping member is disposed at the other two edges of the clearance space corresponding to the limiting plate and is movably disposed on the corresponding base plate. The clamping member includes a clamping block that is driven to the clamping cylinder and is driven by the clamping cylinder to reciprocate toward the corresponding limiting plate.

5. The thread hole position accuracy detection and thread hole adhesive overflow detection device according to claim 1, characterized in that, A connecting plate is mounted on the second linear module, and the visual inspection unit and the glue overflow detection unit are mounted side by side on the connecting plate; The adhesive overflow detection unit includes: The third linear module is arranged vertically on the connecting plate; A linkage plate is slidably connected to the third linear module in a vertical direction, and the detection probe is mounted on the lower end of the linkage plate facing downward. The linkage plate reciprocates in a vertical direction under the drive of the third linear module.

6. The thread hole position accuracy detection and thread hole adhesive overflow detection device according to claim 3, characterized in that, A lower light source plate is also provided on the base, located below the detection component and corresponding to the clearance space, with the lower light source plate facing upwards to illuminate.

7. The thread hole position accuracy detection and thread hole adhesive overflow detection device according to claim 1, characterized in that, The first linear module and the second linear module are arranged in a horizontal direction, and the first predetermined direction and the second predetermined direction are arranged in a horizontal direction and perpendicular to each other.

8. The thread hole position accuracy detection and thread hole adhesive overflow detection device according to claim 1, characterized in that, A barcode scanner is also provided on the base. The barcode scanner is located at the end of the base away from the detection component, and the lens of the barcode scanner is located between the height interval between the base and the fixture plate.

Images