Cylindrical product appearance detection module and full detection equipment

Abstract

The utility model discloses a cylindrical product appearance detection module and full-inspection equipment, which comprises an XYZ-direction movement module on the side of a runner, a grabbing component connected with the XYZ-direction movement module, an XZ-direction movement module and a blanking component, and a standard product platform, a lower camera unit and a line scanning unit are arranged below the XYZ-direction movement module. The full detection mode can be suitable for full detection of cylindrical parts, multi-channel detection, one-key production change and automatic assembly position adjustment, and is compact in structure and high in precision and efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of appearance detection, in particular to full appearance detection equipment for cylindrical products. Background Art

[0002] Appearance inspection equipment usually uses high-resolution cameras and advanced image processing algorithms to conduct all-round and no-dead-angle inspection of products.

[0003] The public document Precision Cylinder Appearance Inspection Equipment (CN202222309894) mentions using a suction nozzle to suck the product, placing the cylinder sideways on a belt roller, the belt driving the cylinder to rotate, an area array camera taking photos of the upper and lower end faces for inspection, a line scan to inspect the cylindrical surface, and tray loading and unloading. This solution rotates the cylinder through friction on the cylindrical surface, which may cause slippage or foreign body extrusion and has poor stability. Differences in product cylindricity will affect the inspection accuracy and distort the inspection results.

[0004] The public document A line scanning inspection platform and inspection process (CN202210696541) mentions that it integrates functions such as automatic product transfer, product self-rotation, lateral inspection and vertical inspection, and has the function of real-time adjustment of the detection focal length, detection and light source position or angle. It is also suitable for automatic inspection of cylindrical, conical and flat products. The line scanning inspection platform and its inspection process. This solution requires manual loading and unloading, and the inspection cycle is too long, which is not suitable for high-beat production with full inspection. Utility Model Content

[0005] The purpose of the utility model is to provide a cylindrical product appearance full inspection device to solve the problems in the prior art of improving the cylindrical surface inspection accuracy and speeding up the inspection cycle.

[0006] The utility model is realized by the following scheme:

[0007] A detection module comprises an XYZ motion module and a grabbing assembly connected to the XYZ motion module, wherein the XYZ motion module is arranged beside a flow channel, the XZ motion module is carried by a support frame, the flow channel passes through the bottom of the support frame, the XZ motion module is connected to the blanking assembly, and a standard product platform, a lower camera unit and a line scanning unit are arranged below the XYZ motion module.

[0008] Furthermore, the lower camera unit is arranged between the standard product platform and the line scanning unit, and the line scanning unit is arranged between the lower camera unit and the flow channel.

[0009] Furthermore, the line scanning unit includes a line scanning platform and a line scanning camera, the strip light source is between the line scanning platform and the line scanning camera, and the strip light source and the line scanning camera are moved by adjusting components.

[0010] Furthermore, the lower end of the z-axis of the XYZ motion module is connected to a grabbing assembly, and the moving range of the XYZ motion module includes the areas of the standard product platform, the lower camera unit and the line scan unit, so that the grabbing assembly follows the XYZ motion module to move to the lower camera unit, and then moves and places the product to the line scan platform.

[0011] Furthermore, the lower end of the z-axis of the XZ-direction motion module is connected to a material unloading component, and the end point of the lateral movement of the material unloading component reaches above the line scanning platform.

[0012] Furthermore, the flow channel includes an NG flow channel and an OK flow channel.

[0013] A cylindrical product appearance full inspection device comprises an inspection line, wherein the inspection line has a plurality of inspection modules, the inspection modules are arranged on one side of a belt line body, and an upper camera unit is arranged at the entrance of the first inspection module.

[0014] Furthermore, the detection module is arranged between the belt line and the flow channel.

[0015] Furthermore, there are two groups of detection lines, and the detection lines are arranged opposite to each other.

[0016] Furthermore, the upper camera unit includes a Z-direction motion module and a detection camera arranged on the Z-direction motion module. The Z-direction motion module drives the detection camera to move up and down, and the camera head of the detection camera is vertically downward toward the belt line body.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0018] This equipment is used for comprehensive inspection of appearance defects of various types of cylinders. A telecentric lens is used on the end face to avoid abnormal detection caused by distortion. Line scanning is used for splicing on the cylindrical surface, which can effectively realize rapid, stable, vibration-free and wear-free comprehensive inspection of cylinders, meeting the production needs of most cylindrical products.

[0019] The cylindrical products are transported to the inspection station via two belt lines, and the inspection module position is automatically adjusted for inspection. The dual-line eight-channel inspection can be performed simultaneously, with high precision, high efficiency, multi-channel inspection and compact structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the external arrangement structure of the full inspection equipment of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal detection module structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the structure of the blanking component of the utility model;

[0023] Figure 4It is a schematic diagram of the upper camera unit of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the line scanning unit of the utility model;

[0025] Reference numerals:

[0026] 1-product, 2-belt line body, 21-belt line body A, 22-belt line body B, 3-flow channel, 31-NG flow channel, 32-OK flow channel, 4-detection module, 5-upper camera unit, 6-support frame, 7-grabbing component, 8-line scanning platform, 9-lower camera unit, 10-line scanning unit, 11-standard product platform, 12-XYZ motion module, 13-detection camera, 14-Z motion module, 15-unloading component, 16-bar light source, 17-line scanning camera, 18-adjustment component, 19-XZ motion module; DETAILED DESCRIPTION

[0027] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0028] Any feature disclosed in this specification (including any additional claims and abstract), unless otherwise stated, may be replaced by other alternative features that are equivalent or have similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0029] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0030] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features.

[0031] like Figure 1As shown, a cylindrical product appearance full inspection device is provided, including two groups of inspection lines, which are arranged opposite to each other, and a single inspection line has multiple inspection modules 4, and the inspection modules 4 are arranged on the outside of the belt line body 2. The belt line body 2 includes the belt line body A and the belt line body B, and the flow channel 3 includes the NG flow channel 31 and the OK flow channel 32. The belt line body A and the belt line body B are parallel and adjacent in the middle, and pass through the two groups of inspection modules 4 side by side. An upper camera unit 5 is provided at the entrance of the first inspection module 4. The product 1 is placed on the belt line body A and the belt line body B, and is sorted by the inspection module 4 to the NG flow channel 31 or the OK flow channel 32. Preferably, the configuration ratio of the NG flow channel 31 and the OK flow channel 32 is 1:2;

[0032] like Figure 2 As shown, a detection module is provided, including a grabbing assembly 7, a lower camera unit 9, a line scanning unit 10 and a material discharge assembly 15. The lower end of the z-axis of the XYZ-direction motion module 12 is connected to the grabbing assembly 7, and is arranged beside the flow channel 3, and a standard product platform 11, a lower camera unit 9 and a line scanning unit 10 are arranged below; the XZ-direction motion module 19 is supported by the support frame 6 on the support frame 6, the flow channel 3 passes under the support frame 6, and the XYZ-direction motion module 12 is between the flow channel 3 and the belt line 2.

[0033] The XYZ motion module 12 has X, Y, and Z axis moving modules, which drive the grabbing component 7 to move in three directions. The moving range includes the standard product platform 11, the lower camera unit 9, and the line scanning unit 10. The grabbing component 7 grabs the product 1 from the belt line 2 and moves to the lower camera unit 9, and then moves and places the product 1 to the line scanning platform 8. The grabbing component 7 is preferably a clamping claw.

[0034] The lower camera unit 9 is disposed between the standard product platform 11 and the line scanning unit 10 , and the line scanning unit 10 is disposed between the lower camera unit 9 and the flow channel 3 .

[0035] like Figure 3 As shown, the Z-axis of the XZ-direction motion module 19 is connected to the blanking component 15, the support frame 6 near one end of the XYZ-direction motion module 12 is close to the line scanning platform 8, and the X-axis track of the XZ-direction motion module 19 covers the support end, so that the end point of the lateral movement can reach the line scanning platform 8, and the Z-axis connected to the blanking component 15 forms a certain thickness with the X-axis track. The blanking component 15 passes through the flow channel 3 during the movement process, and is directly above the line scanning platform 8 when moving to the line scanning platform 8, that is, the moving line of the blanking component 15 passes through the line scanning platform 8, so that the clamping claw picks up the product 1 from the line scanning platform 8 and places it on the flow channel 3.

[0036] like Figure 4As shown, the upper camera unit 5 includes a Z-direction motion module 14 and a detection camera 13 disposed on the Z-direction motion module 14. The Z-direction motion module 14 drives the detection camera 13 to move up and down, and the camera head of the detection camera 13 is vertically downward toward the belt line body 2. The upper camera shines downward on the product 1 on the belt line body 2 to detect the upper condition of the product 1.

[0037] like Figure 1-3 As shown, the line scan camera 17 is arranged between the XYZ motion module 12 and the flow channel 3. The XYZ motion module 12 moves the product 1 from the lower camera unit 9 to the line scan unit 10, and the XZ motion module 19 moves the product 1 to the flow channel 3, which facilitates the smoothness of the process and reasonably arranges the space;

[0038] like Figure 5 As shown, the line scanning unit 10 includes a line scanning platform 8 and a line scanning camera 17 , a strip light source 16 is located between the line scanning platform 8 and the line scanning camera 17 , and the strip light source 16 and the line scanning camera 17 are moved by an adjustment component 18 .

[0039] Specific implementation: The front-end equipment places product 1 on belt line A and belt line B, and transports it to the detection module 4 through the line. The detection module 4 automatically picks up, detects, and sorts it to the OK flow channel 32 and NG flow channel 31. The product 1 is taken away manually or connected to subsequent equipment.

[0040] The gripper follows and grasps the product 1, and moves to the lower camera taking picture through the XYZ motion module 12 to take a picture of the lower end surface for inspection, and then moves and places it on the line scanning platform 8. The line scanning platform 8 rotates, and the line scanning camera 17 starts taking pictures and inspecting at a constant speed. Standard products can be placed on the standard product platform 11 to check the consistency of the equipment.

[0041] After the product model or size is input in the human-machine interface, the Z-axis motion module 14 automatically adjusts the camera height so that the detection camera 13 is adapted to the current product 1 detection.

[0042] The XZ-direction motion module 19 drives the unloading assembly 15 to the line scanning platform 8 to take away the product 1, and places it in the OK flow channel 32 or the NG flow channel 31 according to the detection result.

[0043] After the model or size of the product 1 is input into the human-machine interface, the adjustment component 18 automatically adjusts the distance between the strip light source 16 and the line scan camera 17 so that the line scan camera 17 is adapted to the current product 1 detection.

[0044] The above full inspection method is applicable to the full inspection of cylindrical parts, with one-click production change and automatic adjustment of component position; no sliding friction on the product, protecting product quality; compatible with continuous incoming materials; high production capacity, capable of 1s / pcs inspection; multi-channel independent operation, single channel failure does not affect the operation of other channels.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cylindrical product appearance inspection module, characterized in that: The invention comprises an XYZ motion module (12) and a gripping assembly (7) connected to the XYZ motion module (12); the XYZ motion module (12) is arranged beside a flow channel (3); the XZ motion module (19) is supported by a support frame (6); the flow channel (3) passes through the bottom of the support frame (6); the XZ motion module (19) is connected to a blanking assembly (15); and a standard product platform (11), a lower camera unit (9) and a line scanning unit (10) are arranged below the XYZ motion module (12).

2. A cylindrical product appearance detection module as claimed in claim 1, characterized in that: The lower camera unit (9) is arranged between the standard product platform (11) and the line scanning unit (10), and the line scanning unit (10) is arranged between the lower camera unit (9) and the flow channel (3).

3. A cylindrical product appearance detection module as claimed in claim 1, characterized in that: The line scanning unit (10) comprises a line scanning platform (8) and a line scanning camera (17); a strip light source (16) is disposed between the line scanning platform (8) and the line scanning camera (17); and the strip light source (16) and the line scanning camera (17) are moved by an adjustment component (18).

4. A cylindrical product appearance detection module as claimed in claim 1, characterized in that: The lower end of the z-axis of the XYZ motion module (12) is connected to the gripping component (7), and the moving range of the XYZ motion module (12) includes the areas of the standard product platform (11), the lower camera unit (9) and the line scanning unit (10), so that the gripping component (7) follows the XYZ motion module (12) to move to the lower camera unit (9), and then moves and places the product (1) to the line scanning platform (8).

5. The cylindrical product appearance detection module according to claim 1, characterized in that: The lower end of the z-axis of the XZ-direction motion module is connected to a material discharge assembly (15), and the end point of the lateral movement of the material discharge assembly (15) reaches above the line scanning platform (8).

6. A cylindrical product appearance inspection module as claimed in claim 1, characterized in that: The flow channel (3) includes an NG flow channel (31) and an OK flow channel (32).

7. A cylindrical product appearance inspection device, comprising a cylindrical product appearance inspection module according to any one of claims 1 to 6, characterized in that: It comprises a detection line, wherein the detection line has a plurality of detection modules (4), the detection modules (4) are arranged on one side of a belt line body (2), and an upper camera unit (5) is arranged at the entrance of the first detection module (4).

8. The cylindrical product appearance inspection device according to claim 7, characterized in that: The detection module (4) is arranged between the belt line (2) and the flow channel (3).

9. The cylindrical product appearance inspection device according to claim 7, characterized in that: There are two groups of detection lines, and the detection lines are arranged opposite to each other.

10. The cylindrical product appearance inspection device according to claim 7, characterized in that: The upper camera unit (5) comprises a Z-direction motion module (14) and a detection camera (13) arranged on the Z-direction motion module (14); the Z-direction motion module (14) drives the detection camera (13) to move up and down; and the camera head of the detection camera (13) is vertically downward toward the belt line (2).

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