Workpiece two-side hole size detection device

Abstract

A kind of workpiece two side hole size detection device, including a table top that provides assembly position, the table top is equipped with: clamping device, the clamping device is used to locate clamping workpiece to be detected;Detection device, the detection device includes two visual components respectively arranged in one of the fixture plate two sides, the visual component has visual camera towards the direction of the fixture plate;Illumination device, the illumination device is arranged in the side of the detection device, and has light source unit towards below and provides detection light source for the detection device.By the setting of the present technical solution, the side hole size information and position of the two sides of workpiece can be detected simultaneously, at the same time, by the illumination device arranged above the detection workpiece, the light from top to bottom is projected, the reflection of detection surface can be reduced, so that the quality of detection can be ensured under the condition of improving brightness.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a device for detecting the size of side holes on both sides of a workpiece. Background Technology

[0002] Visual inspection refers to taking pictures of the workpiece to be inspected using a visual camera to obtain image signals, which are then transmitted to a processing system. The processing system converts the image signals into digital signals based on pixel distribution, brightness, color, and other information. The image system performs various operations on these signals to extract the features of the target, and then controls the operation of the equipment on site based on the judgment results.

[0003] In the existing technology, hole size inspection is a necessary inspection item for some high-precision electronic product components. It requires a vision camera to take pictures of the position and size of the hole on the workpiece at the same time, and then to judge whether the position and size information of the hole is qualified by combining multiple image signals. Currently, common inspection devices have vision cameras set on the front or side of the workpiece, but their inspection effect and efficiency are poor.

[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 dimensions of side holes on both sides of a workpiece, so as to overcome the defects mentioned in the background art.

[0006] A device for detecting the dimensions of side holes on both sides of a workpiece includes a platform providing an assembly position, on which the following are mounted:

[0007] A clamping device for positioning and clamping a workpiece to be inspected, comprising a fixture plate with positioning areas at both ends, and a drive device for reciprocating the position of the fixture plate.

[0008] The detection device includes two vision components respectively disposed on both sides of one of the fixture plates, the vision components having a vision camera facing the fixture plate;

[0009] An illumination device is disposed beside the detection device and has a light source unit facing downwards and providing a detection light source for the detection device.

[0010] Furthermore, positioning components for defining the positioning clamping are respectively provided at both ends of the fixture plate, and the positioning components are provided with a plurality of positioning blocks along the edge of the positioning area.

[0011] Furthermore, the positioning blocks located at two adjacent edges of the positioning area are fixed on the fixture plate, and the positioning blocks located at the other two adjacent edges of the positioning area are mounted on the clamping cylinder and move towards the opposite edge of the positioning area under the drive of the clamping cylinder to clamp the workpiece to be tested located within the positioning area.

[0012] Furthermore, the driving device is connected to the middle position of the jig plate, and the driving device includes a drive motor fixedly mounted on the table surface. The drive motor is connected to the jig plate to drive the jig plate to rotate.

[0013] Furthermore, the vision component includes a moving module, on which the vision camera is mounted and reciprocates along the X and Y axes.

[0014] Furthermore, the lighting device includes a mounting plate suspended above the positioning area, and the light source unit is mounted on the mounting plate.

[0015] Furthermore, the lighting device also includes a vertical rod that is vertically arranged and fixedly mounted on the table surface. A suspension beam extending toward the fixture plate is fixedly mounted on the end of the vertical rod. A lifting cylinder that is pulsatorically connected to the mounting plate is fixedly mounted on the end of the suspension beam. The lifting cylinder drives the mounting plate to reciprocate in the up-down direction.

[0016] Furthermore, a barcode scanner is installed on the cantilever beam, and a clearance position corresponding to the barcode scanner is provided on the mounting plate for the barcode scanner to face downwards.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This utility model provides a device for detecting the side hole dimensions of a workpiece on both sides. A vision component is provided on each side of a positioning area used to clamp and position the workpiece to be detected. This component simultaneously detects the hole dimensions and positions on both sides of the two workpieces within the positioning area. To improve detection quality, an illumination device is provided above the positioning area. This illumination device projects light onto the corresponding sides of the two vision components on the workpiece to be detected, thereby increasing the brightness of the visual detection position and improving detection quality. This technical solution allows for the simultaneous detection of the side hole dimensions and positions on both sides of the workpiece. Furthermore, the downward projection of light from the illumination device above the workpiece reduces glare on the detection surface, thus ensuring detection quality while increasing brightness.

[0019] During workpiece inspection, the workpiece to be inspected is mounted within the positioning areas at both ends of the fixture plate, fixing its position. Two vision components are located on either side of one of the positioning areas. At this time, the illumination device projects light downwards onto the workpiece, while the vision cameras located on both sides of the workpiece take pictures and transmit the image information to the control system. The control system compares the images to complete the workpiece inspection. It is worth noting that the illumination device has two light source units, each corresponding to one of the two inspection surfaces of the workpiece, allowing light to be projected onto both inspection surfaces simultaneously. Because the illumination light is projected downwards, it prevents the light from shining directly onto the inspection surfaces, avoiding glare that could affect inspection accuracy. Furthermore, since the light's angle of illumination is parallel to the inspection surfaces, light refraction is further reduced, ensuring effective illumination of the inspection surfaces and providing sufficient brightness for the vision cameras to complete the visual inspection, thus guaranteeing the quality of the inspection.

[0020] During the inspection process, once the workpiece within one of the positioning areas has been inspected, the drive device will rotate the fixture plate, causing the other end of the fixture plate to move to the position corresponding to the inspection device for inspection. The inspected workpiece is moved to the end away from the inspection device, and is then removed manually or by a material handling device. The workpiece to be inspected is then reloaded. The dual-station clamping device can improve the efficiency of visual inspection of workpieces.

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model.

[0023] Figure 2 This is a schematic diagram of the clamping device in this utility model.

[0024] Figure 3 This is a schematic diagram of the detection device in this utility model.

[0025] Figure 4 This is a schematic diagram of the lighting device in this utility model. Detailed Implementation

[0026] 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.

[0027] It should be noted that all directional indications (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 indication will also change accordingly.

[0028] 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.

[0029] This utility model provides a workpiece two-sided side hole size detection device 300. A vision component 310 is respectively arranged on both sides of a positioning area 210 used to clamp and position the workpiece to be detected. This component simultaneously detects the hole size and position information on both sides of the two workpieces to be detected, positioned within the positioning area 210. To improve detection quality, an illumination device 400 is arranged above the positioning area 210. The illumination device 400 projects light onto the corresponding sides of the two vision components 310 on the workpiece to be detected, thereby increasing the brightness of the visual detection position and improving the detection quality. This technical solution allows for the simultaneous detection of the side hole size and position information on both sides of the workpiece. Furthermore, the downward projection of light from the illumination device 400 above the workpiece reduces reflection on the detection surface, thus ensuring detection quality while increasing brightness.

[0030] Specifically, such as Figure 1-4 As shown, in this embodiment, a workpiece two-sided side hole size detection device 300 is provided, including a table 100 providing an assembly position. A clamping device 200, a detection device 300, and a lighting device 400 are mounted on the table 100. The clamping device 200 is used to position and clamp the workpiece to be detected. It includes a fixture plate 220 with positioning areas 210 at both ends, and a driving device 230 for reciprocating the position of the fixture plate 220. The detection device 300 includes two vision components 310 respectively disposed on both sides of one of the fixture plates 220. The vision components 310 have vision cameras 311 facing the fixture plate 220. The lighting device 400 is disposed beside the detection device 300 and has a light source unit 401 facing downward and providing a detection light source for the detection device 300.

[0031] During the workpiece inspection process, the workpiece to be inspected is placed within the positioning areas 210 at both ends of the fixture plate 220 to fix its position. Two vision components 310 are located on the two sides of one of the positioning areas 210. At this time, the illumination device 400 projects light onto the workpiece to be inspected from top to bottom. Simultaneously, the vision cameras 311 located on both sides of the workpiece to be inspected take pictures of the workpiece and transmit the image information to the control system. The control system compares the images to complete the workpiece inspection. It is worth noting that there are two light source units 401 on the illumination device 400, corresponding to the two inspection surfaces of the workpiece to be inspected, so that light can be projected onto the two inspection surfaces simultaneously. Since the illumination light is projected from top to bottom, the light will not shine directly on the inspection surface, avoiding the situation where the inspection surface affects the inspection accuracy due to reflection. At the same time, since the illumination angle of the light is parallel to the inspection surface, the refraction of the light can be further reduced, thereby ensuring the illumination effect on the inspection surface and providing sufficient brightness for the vision cameras 311 to complete the visual inspection, thus ensuring the quality of the inspection.

[0032] During the inspection process, after the workpiece within one of the positioning areas 210 is inspected, the drive device 230 will drive the fixture plate 220 to rotate, thereby causing the other end of the fixture plate 220 to be moved to the position corresponding to the inspection device 300 for inspection. The inspected workpiece is moved to the end away from the inspection device 300, and the inspected workpiece is removed manually or by a material handling device, and the workpiece to be inspected is reloaded. The dual-station clamping device 200 can improve the efficiency of visual inspection of workpieces.

[0033] In this embodiment, as Figure 2 As shown, positioning components 240 for defining positioning and clamping are respectively provided at both ends of the fixture plate 220, and a plurality of positioning blocks 241 are provided along the edge of the positioning area 210 of the positioning components 240.

[0034] Meanwhile, in order to position the workpiece to be inspected, positioning blocks 241 located on two adjacent edges of positioning area 210 are fixed on fixture plate 220, and positioning blocks 241 located on two other adjacent edges of positioning area 210 are mounted on clamping cylinder 242. Driven by clamping cylinder 242, they move toward the opposite edge of positioning area 210 to clamp the workpiece to be inspected located within positioning area 210.

[0035] When the workpiece to be inspected is loaded into the positioning area 210, the clamping cylinder 242 drives the positioning block 241 loaded thereon to move away from the positioning area 210, thereby expanding the size of the positioning area 210. This facilitates loading the workpiece to be inspected into the positioning area 210. Subsequently, the clamping cylinder 242 drives the positioning block loaded thereon to move towards the interior of the positioning area 210, thereby pushing the workpiece to be inspected and clamping it within the positioning area 210, thus achieving the positioning of the workpiece to be inspected. Since the clamping cylinder 242 has multiple clamping cylinders arranged on the adjacent two sides of the positioning area 210, it can push the workpiece to be inspected towards the other two adjacent sides, thereby ensuring that the position of the workpiece to be inspected within the positioning area 210 is always in the same position. The fixed position of the workpiece to be inspected facilitates the inspection work of the vision component 310.

[0036] In this embodiment, in order to drive the jig plate 220 to rotate, such as Figure 2 As shown, the drive device 230 is connected to the middle of the fixture plate 220. The drive device 230 includes a drive motor 231 fixedly mounted on the table 100. The drive motor 231 is connected to the fixture plate 220 to drive the fixture plate 220 to rotate. In this embodiment, the drive motor 231 is connected to the middle of the fixture plate 220 through a reducer, thereby ensuring the smoothness of the rotation of the fixture plate 220 when driving it to rotate, and avoiding the workpiece to be inspected from shaking.

[0037] In this embodiment, in order to improve the accuracy of the vision component 310 during the detection process, and to prevent interference with the fixture plate 220 during rotation, such as Figure 3 As shown, the vision component 310 includes a moving module 320, and a vision camera 311 is mounted on the moving module 320 and moves back and forth along the X and Y axes.

[0038] Specifically, in this embodiment, the moving module 320 includes two linear modules 321 assembled with each other. One of them is arranged along the X-axis and fixedly mounted on the table 100, and the other linear module 321 is arranged along the Y-axis and mounted on the X-axis linear module 321. The vision camera 311 is mounted on the Y-axis linear module 321, so that the vision camera 311 can move along the X and Y axes, thereby enabling the detection of side holes at different positions on the workpiece. After the detection is completed, it can be returned to the detection position, providing sufficient space for the jig plate 220 to rotate.

[0039] In this technical solution, the lighting device 400 includes a mounting plate 410 suspended above the positioning area 210, and a light source unit 401 mounted on the mounting plate 410. It should be noted that both ends of the mounting plate 410 extend to positions corresponding to the sides of the workpiece to be inspected. The light source unit 401 includes two sets respectively mounted on the two end faces of the mounting plate 410, thereby simultaneously projecting illumination light from top to bottom onto the sides of the workpiece to be inspected, thus illuminating the inspection surface.

[0040] In this embodiment, in order to ensure the lighting effect, the lighting device 400 also includes a vertical rod 411 that is vertically arranged and fixedly installed on the table 100. A suspension beam 412 extending toward the fixture plate 220 is fixedly installed on the end of the vertical rod 411. A lifting cylinder 413 that is pulsatorically connected to the mounting plate 410 is fixedly installed at the end of the suspension beam 412. The lifting cylinder 413 drives the mounting plate 410 to move back and forth in the up and down direction.

[0041] During inspection, the lifting cylinder 413 drives the mounting plate 410 to move downwards, thereby shortening the distance between the light source unit 401 and the workpiece to be inspected, thus improving the illumination effect on the inspection surface and ensuring high brightness during the inspection process. At the same time, by shortening the distance between the light source unit 401 and the workpiece to be inspected, the diffusion of the illumination light projected by the light source unit 401 in all directions is reduced, thereby reducing the refraction caused by the outermost light rays of the light source projecting onto the inspection surface, thus reducing the impact on the vision camera 311 and ensuring the inspection effect.

[0042] In this embodiment, to identify each workpiece to be inspected, a barcode scanner 415 is installed on the cantilever beam 412, and a clearance position 415 corresponding to the barcode scanner 415 is provided on the mounting plate 410 for the barcode scanner 415 to face downwards. During the inspection process, the barcode scanner 415 scans the barcode of the workpiece to be inspected, thereby identifying the workpiece and ensuring that the inspection corresponds to the workpiece being inspected.

[0043] 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 size of a hole formed on both sides of a workpiece, comprising a table for providing an assembly position, wherein The platform is equipped with: A clamping device for positioning and clamping a workpiece to be inspected, comprising a fixture plate with positioning areas at both ends, and a drive device for reciprocating the position of the fixture plate. The detection device includes two vision components respectively disposed on both sides of one of the fixture plates, the vision components having a vision camera facing the fixture plate; An illumination device is disposed beside the detection device and has a light source unit facing downwards and providing a detection light source for the detection device.

2. The device according to claim 1, wherein The jig plate is provided with positioning components at both ends for defining the positioning clamping, and the positioning components are provided with a plurality of positioning blocks along the edge of the positioning area.

3. The device according to claim 2, wherein The positioning blocks located at two adjacent edges of the positioning area are fixed on the fixture plate, and the positioning blocks located at the other two adjacent edges of the positioning area are mounted on the clamping cylinder, and the clamping cylinder drives them to move toward the opposite edge of the positioning area to clamp the workpiece to be inspected located within the positioning area.

4. The device according to claim 1, wherein The drive device is connected to the middle of the jig plate. The drive device includes a drive motor fixedly mounted on the table surface. The drive motor is connected to the jig plate to drive the jig plate to rotate.

5. The apparatus according to claim 1, wherein The vision component includes a moving module, and the vision camera is mounted on the moving module and moves back and forth along the X and Y axes.

6. The device according to claim 1, wherein The lighting device includes a mounting plate suspended above the positioning area, and the light source unit is mounted on the mounting plate.

7. The workpiece two-side hole size measuring apparatus according to claim 6, wherein The lighting device also includes a vertical rod that is vertically arranged and fixedly mounted on the table surface. A suspension beam extending toward the fixture plate is fixedly mounted on the end of the vertical rod. A lifting cylinder that is pulsatorically connected to the mounting plate is fixedly mounted on the end of the suspension beam. The lifting cylinder drives the mounting plate to reciprocate in the up-down direction.

8. The device according to claim 7, wherein A barcode scanner is also installed on the cantilever beam, and a clearance position corresponding to the barcode scanner is provided on the mounting plate so that the barcode scanner can shine downwards.

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