Triaxial precision detection structure and visual detection equipment

Abstract

The utility model provides a triaxial precision detection structure, which comprises a platform and a Y-direction moving device arranged on the platform, an X-direction moving device sliding on the Y-direction moving device is mounted on the Y-direction moving device, a rotating device sliding on the X-direction moving device is mounted on the X-direction moving device, an adsorption platform is mounted on the rotating device, and the Y-direction moving device is mounted on the adsorption platform. And a product to be detected is placed on the adsorption platform. According to the utility model, manual detection can be replaced, the precision and efficiency of manual operation are improved, on one hand, the manpower demand of a customer site is reduced, and on the other hand, the operation efficiency and the detection success rate of a production line are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automatic detection equipment for Micro LED display screens, and particularly relates to a three-axis precision detection structure and a vision detection device. Background Art

[0002] For the Micro-LED display screen products after the chip transfer section, after transfer and die bonding, the products with graphic defects are automatically detected and classified. At present, most of them use foreign equipment or manual inspection, resulting in high equipment and labor costs and low efficiency. Content of the Utility Model

[0003] In view of the above-mentioned defects of the prior art, the utility model aims to provide a three-axis precision detection structure and a vision detection device, which can replace manual inspection, improve the accuracy and efficiency of manual operations, reduce the manpower requirements at the customer site on the one hand, and improve the operation efficiency and detection success rate of the production line on the other hand.

[0004] To achieve the above object, the utility model provides a three-axis precision detection structure, which includes a platform and a Y-direction moving device arranged on the platform. An X-direction moving device that slides thereon is installed on the Y-direction moving device. A rotating device that slides thereon is installed on the X-direction moving device. An adsorption platform is installed on the rotating device, and a product to be detected is placed on the adsorption platform.

[0005] The Y-direction moving device includes a plurality of Y-direction linear guide rails arranged in parallel. A Y-direction linear motor arranged in parallel with them is arranged in the middle of the plurality of Y-direction linear guide rails. The slider of the plurality of Y-direction linear guide rails and the driving end of the Y-direction linear motor are used to install the X-direction moving device.

[0006] The X-direction moving device includes an X-direction base. A plurality of X-direction linear guide rails and an X-direction linear motor arranged in parallel are installed on the X-direction base. The slider of the plurality of X-direction linear guide rails and the driving end of the X-direction linear motor are used to install the rotating device.

[0007] The rotating device includes a rotating platform and a rotating servo motor. The rotating servo motor is fixedly installed with the adsorption platform.

[0008] Four Y-direction linear guide rails are provided. Encrypted installation holes are arranged on the Y-direction linear guide rails. The Y-direction linear guide rails are fixedly connected to the platform through fixing pieces and the encrypted installation holes.

[0009] Encrypted installation holes are arranged on the X-direction linear guide rails. The X-direction linear guide rails are fixedly connected to the X-direction base through fixing pieces and the encrypted installation holes.

[0010] A grating scale is installed on any one of the Y-direction linear slide rails and any one of the X-direction linear slide rails.

[0011] The Y-direction linear motor is vertically arranged at the center of the platform. Every two Y-direction linear slide rails are symmetrically arranged on both sides of the Y-direction linear motor. A positioning plate is arranged between the two Y-direction linear slide rails on both sides of the Y-direction linear motor, and an elastic gasket is installed on the inner side of the positioning plate.

[0012] A vision detection device includes the three-axis precision detection structure described in any one of the above.

[0013] Compared with the prior art, through the implementation of the present utility model, the following obvious technical effects are achieved:

[0014] The three-axis precision detection structure of the present utility model can replace manual detection, improve the precision and efficiency of manual operations, reduce the manpower requirements at the customer site on the one hand, and also improve the operation efficiency and detection success rate of the production line on the other hand.

[0015] The following will further illustrate the concept and technical effects generated by the present utility model in conjunction with the drawings to fully understand the purpose, features and effects of the present utility model. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of a first embodiment of the present utility model;

[0017] Figure 2 is a schematic structural diagram of the moving device of a first embodiment of the present utility model;

[0018] Figure 3 is a schematic structural diagram of the base of a first embodiment of the present utility model;

[0019] Figure 4 is a schematic structural diagram of the vision device of an embodiment of the present utility model;

[0020] Figure 5 is Figure 4 a schematic structural diagram in another direction of

[0021] Figure 6 is a schematic structural diagram of the box body of an embodiment of the present utility model. Detailed Embodiments

[0022] The following specific examples illustrate the implementation modes of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific implementation modes. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0023] It should be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the present utility model in a schematic manner. Therefore, only the components related to the present utility model are shown in the diagrams, rather than being drawn according to the number, shape, and size of the components during actual implementation. The types, quantities, and ratios of the components during actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0024] A three-axis precision detection structure 6 includes a platform 3 and a Y-direction moving device 61 arranged on the platform 3. An X-direction moving device 62 that slides thereon is installed on the Y-direction moving device 61. A rotating device 64 that slides thereon is installed on the X-direction moving device 62. An adsorption platform 63 is installed on the rotating device 64, and a product to be detected is placed on the adsorption platform 63.

[0025] The X-direction moving device 62 is installed with a rotating device 64, and the adsorption platform 63 is installed on the rotating device 64.

[0026] During specific implementation, the Y-direction moving device 61 includes multiple Y-direction linear slide rails 611 arranged in parallel. A Y-direction linear motor 612 is arranged between the multiple linear slide rails 611. The sliders of the multiple Y-direction linear slide rails 611 and the driving end of the Y-direction linear motor 612 are simultaneously fixedly connected to the X-direction moving device 62. The X-direction moving device 62 includes an X-direction marble base 621. Multiple X-direction linear slide rails 622 parallel to the X-direction and an X-direction linear motor are arranged on the X-direction marble base 621. The sliders of the multiple X-direction linear slide rails 622 and the driving end of the X-direction linear motor are simultaneously fixedly installed with a rotating platform 641. A rotating servo motor 642 is installed on the rotating platform 641, and the adsorption platform 63 is installed at the upper end of the rotating servo motor 642. During specific implementation, the Y-direction linear motor drives the X-direction marble base to perform a linear reciprocating motion in the Y-direction, the X-direction linear motor drives the rotating platform and the adsorption platform to perform a linear reciprocating motion in the X-direction, and the rotating servo motor adjusts the angle of the adsorption platform to meet the detection requirements of the 2D vision detection component and the 3D vision detection component for the product to be detected.

[0027] Specifically, there are four Y-direction linear slide rails, which are evenly distributed on the platform in parallel. When installing the Y-direction linear slide rails on the platform, the installation holes are installed in a denser manner to reduce the Z-direction jitter of the X-direction marble base during movement, ensure the height consistency, and ensure the smooth operation of the X-direction marble base driven by the Y-direction linear motor on the Y-direction linear slide rails. When installing the X-direction linear slide rail and the X-direction marble base, the installation holes need to be installed in a denser manner to ensure the smooth operation of the rotating device during the reciprocating movement in the X direction. More specifically, the Y-direction linear motor is vertically arranged at the center of the platform. Every two Y-direction linear slide rails are symmetrically arranged on both sides of the Y-direction linear motor. The two Y-direction linear slide rails located on the outer side are fixedly connected to the two ends of the X-direction marble base. The two Y-direction linear slide rails of the Y-direction linear motor close to the Y-direction linear motor are fixedly connected to the middle of the X-direction marble base to ensure the smooth operation of the X-direction marble base during the reciprocating movement in the Y direction. A positioning plate 613 is arranged between the two Y-direction linear slide rails on both sides of the Y-direction linear motor. An elastic gasket 614 is installed on the inner side of the positioning plate 613 for resisting the X-direction marble base.

[0028] During the specific implementation, a Y-axis grating ruler is installed on the side of the Y-direction linear slide rail close to the Y-direction linear motor, and an X-axis grating ruler is also installed on the side of the X-direction linear slide rail. The Y-axis grating ruler and the X-axis grating ruler respectively perform the Y-direction and X-direction position feedback.

[0029] The platform 3 is arranged on the base 2, and the base 2 is connected to the platform 3 through a shock absorption unit 4. Cushion blocks 21 are arranged at the four corners of the base 2. A shock absorption unit 4 is installed on each cushion block 21, and the platform 3 is fixedly installed on the shock absorption unit 4.

[0030] In specific implementation, the shock absorption unit uses shock absorption air bearings to reduce vibration and shock of the platform, ensuring that the platform always remains horizontal without vibration and shock. The shock absorption air bearings can reduce vibration and shock: In the fields of precision instruments, mechanical equipment, production lines, etc., air-bearing shock absorbers effectively reduce vibration and shock through the control of air pressure. This shock absorption method weakens vibration and shock by adjusting the air pressure in the airbag, thereby maintaining the stable operation of mechanical equipment. Precise control ability: Air-bearing shock absorbers have the ability of precise control. Through the cooperation of air pressure sensors and control valves, the air pressure in the airbag can be accurately adjusted to achieve precise control of vibration and shock. This control method can dynamically adjust the air pressure in the airbag according to actual production requirements to achieve the best shock absorption and control effects. Adjustability and reliability: Air-bearing shock absorbers have adjustability and reliability, and the air pressure in the airbag can be flexibly adjusted according to different working conditions and requirements. This adjustability enables air-bearing shock absorbers to achieve the best shock absorption and control effects in different industrial production environments. At the same time, air-bearing shock absorbers have a simple structure, reliable operation, can work stably for a long time, and are not easily interfered by the external environment.

[0031] A vision system 5 and a moving system 6 are arranged on the platform 3. The vision system 5 includes a support unit 51 and a plurality of vision detection units 52. The moving system 6 drives the product to be tested to run sequentially below the vision system 5. The moving system cooperates with the plurality of vision detection units to enable the product to be tested to pass through the plurality of vision detection units successively for different detection needs, replacing manual detection and improving the operation efficiency and detection success rate of the production line.

[0032] The support unit 51 includes columns 511 respectively located at both ends of the middle part of the platform 3. A placement box 512 is erected on the columns 511 at both ends, and the connection between the placement box 512 and the columns 511 is communicated. In specific implementation, both the platform and the support unit are made of marble, and have the characteristics of high precision, good stability, wear resistance, impact resistance, not easy to deform, high hardness, strong adaptability, long service life, etc.

[0033] The plurality of vision detection units 52 are respectively a 2D vision detection component 521 and a 3D vision detection component 522, and are respectively arranged on the front side and the rear side of the placement box 512.

[0034] The front side and the rear side of the bracket unit are respectively provided with a first adjustment device and a second adjustment device for fixing and adjusting the 2D vision detection component and the 3D vision detection component. The 2D vision detection component uses a 2D camera with a depth of field of 3.5um for detection, and a laser rangefinder is installed on the 2D vision detection component, which can accurately detect the height of the product to be tested; the 3D vision detection component is used to detect the appearance, size, etc. of the product to be tested. The moving system drives the product to be tested to pass through the barcode reader for barcode reading first, and then through the 2D vision detection component and the laser rangefinder for height detection, and then the moving system drives the product to be tested back to the 3D vision detection component to complete the detection. It replaces manual detection and improves the operation efficiency and detection success rate of the production line.

[0035] It further includes a plurality of cable protective covers 7, which are respectively arranged on the upper surfaces of the platform 3, the column 511 and the placement box 512. The cable protective cover covers the cables required by the equipment, ensuring that there are no cables on the platform and making it safer. In a specific implementation, the cable protective cover 7 includes a first section protective cover placed on the platform, a second section protective cover arranged on the upper surface of the placement box, and a third section protective cover connecting the first section protective cover and the second section protective cover. The cables in the second section protective cover are connected to the display on the side wall of the box body, and functions such as starting, stopping and adjusting data of the equipment can be controlled through the display.

[0036] The base and the platform are arranged in the box body 1 to form a vision inspection machine. The box body 1 is composed of four side walls 11 and a cover body 12. A loading and unloading port 13 is arranged on the front side wall of the box body 1, and a display and a keyboard group 14 are arranged on the side wall on one side of the loading and unloading port 12. A plurality of FFUs 15 are installed on the cover body to ensure the air in the purification box body. Support feet 16 are arranged at the four corners of the lower end of the box body. The loading and unloading port corresponds to the moving system, and the product to be inspected is placed on the adsorption platform on the moving system through manual or automatic loading hands for inspection.

[0037] A vision detection method includes the following steps:

[0038] S1. Loading, putting the product to be inspected onto the adsorption platform;

[0039] S2. Barcode reading, the moving system drives the adsorption platform to move, so that the product to be tested moves to the barcode reader station for barcode reading;

[0040] S3. Preliminary detection, the moving system drives the adsorption platform to move to the rangefinder station for height detection;

[0041] S4. Precise detection, the moving system drives the adsorption platform to pass through the stations of the 2D vision detection component and the 3D vision detection component respectively for detection.

[0042] More specifically, a vision detection method includes the following steps:

[0043] 1. The manual / automatic loading manipulator places the product to be inspected on the product adsorption table;

[0044] 2. The XY-axis under the adsorption table moves the product to the code reading position;

[0045] 3. After code reading, the product moves to the laser ranging station to detect the height of the product;

[0046] 4. The product moves to the 2D camera position for inspection. During the inspection process, the X-axis moves left and right under the camera, and the Y-axis performs row cutting on the product. After one row of products is inspected, it switches to another row for inspection.

[0047] 5. The product moves to the 3D camera position for inspection.

[0048] 6. After the inspection is completed, it moves to the loading position, and the manual / automatic manipulator takes out the product.

[0049] The above description is only the preferred embodiment of the present application and the explanation of the applied technical principles. Those skilled in the art should understand that the scope of disclosure involved in the present application is not limited to the technical solution formed by the specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above disclosure concept. For example, the technical solutions formed by mutually replacing the above features with the (but not limited to) technical features with similar functions disclosed in the present application.

[0050] The above embodiments are only illustrative of the principles and effects of the present invention, and are not used to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A three-axis precision detection structure, characterized in that It includes a platform and a Y-direction moving device arranged on the platform. An X-direction moving device that slides thereon is installed on the Y-direction moving device. A rotating device that slides thereon is installed on the X-direction moving device. An adsorption platform is installed on the rotating device, and the product to be detected is placed on the adsorption platform.

2. The triaxial precision detection structure according to claim 1, characterized in that, The Y-direction moving device includes multiple Y-direction linear slide rails arranged in parallel. A Y-direction linear motor arranged in parallel with them is arranged in the middle of the multiple Y-direction linear slide rails. The slider of the multiple Y-direction linear slide rails and the driving end of the Y-direction linear motor are installed with the X-direction moving device.

3. A three-axis precision detection structure according to claim 2, characterized in that, The X-direction moving device includes an X-direction base. Multiple X-direction linear slide rails and an X-direction linear motor arranged in parallel are installed on the X-direction base. The slider of the multiple X-direction linear slide rails and the driving end of the X-direction linear motor are installed with the rotating device.

4. A three-axis precision detection structure according to claim 3, characterized in that The rotating device includes a rotating platform and a rotating servo motor. The rotating servo motor is fixedly installed with the adsorption platform.

5. A three-axis precision detection structure according to claim 2, characterized in that, There are four Y-direction linear slide rails, and encryption installation holes are arranged on the Y-direction linear slide rails. The Y-direction linear slide rails are fixedly connected to the platform through fixing parts and the encryption installation holes.

6. The three-axis precision detection structure according to claim 3, characterized in that, Encryption installation holes are arranged on the X-direction linear slide rails and are fixedly connected to the X-direction base through fixing parts and the encryption installation holes.

7. A three-axis precision detection structure according to any one of claims 5 or 6, characterized in that, A grating ruler is installed on any one of the Y-direction linear slide rails and any one of the X-direction linear slide rails.

8. A three-axis precision detection structure according to claim 2, characterized in that, The Y-direction linear motor is vertically arranged at the center of the platform. Every two Y-direction linear slide rails are symmetrically arranged on both sides of the Y-direction linear motor. A positioning plate is arranged between the two Y-direction linear slide rails on both sides of the Y-direction linear motor, and an elastic gasket is installed on the inner side of the positioning plate.

9. A visual detection device, characterized in that, It includes the three-axis precision detection structure according to any one of claims 1-8.

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