Optical detection equipment applied to fastener production and processing

Abstract

The invention relates to the technical field of optical detection, in particular to optical detection equipment applied to fastener production and processing, which comprises a gate-type main frame, electric control type turnover frames are hinged to two sides of the inner bottom surface of the gate-type main frame, and electric control type material conveying belts are mounted in the electric control type turnover frames; and optical detection modules are fixedly mounted at the upper ends of the two sides of the gate-type main frame through cross beams. According to the optical detection equipment applied to fastener production and processing, electric control type overturning frames are hinged to the two sides of the inner bottom face of a door type main frame, electric control type conveying belts are installed in the electric control type overturning frames, and optical detection modules are fixedly installed at the upper ends of the two sides of the door type main frame through cross beams; therefore, optical scanning is carried out on the fasteners in the lower conveying process from multiple angles, and the scanning range of the fasteners is widened. And a plurality of built-in cross beams are arranged in the top assembly frame, and the upper ends of the built-in cross beams are provided with electric control type material turning plates, so that the fasteners on the surface can be turned over and adjusted, and the detection range is wider.

Description

Technical Field

[0001] This invention relates to the field of optical inspection technology, and in particular to an optical inspection device for fastener production and processing. Background Technology

[0002] Fasteners require dimensional and specification inspection during production to ensure they meet manufacturing accuracy requirements. Current inspection methods include material testing machines, fatigue testing machines, spectrometers, and optical vision inspection machines. Among these, optical vision inspection machines enable fully automated and efficient inspection of fasteners on the production line by identifying surface defects and performing high-precision dimensional measurements.

[0003] However, most current optical vision inspection machines have a fixed structure and can only scan fasteners during the transportation process. However, they cannot simultaneously and quickly separate unqualified fasteners during the scanning process, resulting in very limited functionality. Furthermore, they cannot adjust their detection range and are inconvenient to store and transport. Summary of the Invention

[0004] The technical problem that this invention aims to solve is that most current optical vision inspection machines have a fixed structure and cannot simultaneously and quickly separate unqualified fasteners during the scanning process, resulting in very limited functionality. Furthermore, they cannot adjust their detection range and are inconvenient to store and transport.

[0005] The technical solution adopted by the present invention to solve its technical problem is: an optical inspection device for fastener production and processing, including a gantry main frame, an electrically controlled flip frame hinged on both sides of the bottom surface of the gantry main frame, an electrically controlled conveyor belt installed inside the electrically controlled flip frame, and optical inspection modules fixedly installed on the upper ends of both sides of the gantry main frame through crossbeams.

[0006] The portal frame has outwardly extending lateral bottom supports on both sides of its inner bottom surface. The electrically controlled flip frame includes a bottom flip frame hinged to the lateral bottom supports, a top mounting frame fixedly installed on the bottom flip frame, and a bottom adjusting support rod for controlling the bottom flip frame.

[0007] The top assembly frame has a plurality of built-in crossbeams inside, each of which has a side guide rail on its inner wall. The upper end of the built-in crossbeam has an electrically controlled tilting plate, and the inner wall of the side guide rail is equipped with an embedded adjusting support rod.

[0008] The electrically controlled conveyor belt includes a main assembly frame with lateral sliders on both sides, a drive wheel, a driven wheel, a support wheel, and an external conveyor belt installed inside the main assembly frame.

[0009] The drive wheel, driven wheel, support wheel, and external conveyor belt are arranged horizontally inside the top assembly frame.

[0010] The bottom surface of the portal frame is equipped with a horizontally placed separation groove with openings on both sides.

[0011] The horizontally placed separation tank is equipped with a horizontally placed electrically controlled separation belt.

[0012] The top surface and the ends of the crossbeams on both sides of the portal frame are equipped with LED lights for downward illumination.

[0013] The lower ends of both sides of the portal frame are provided with bottom openings, and an electrically controlled bottom support frame is slidably installed on the portal frame through the bottom openings.

[0014] The electrically controlled bottom support frame includes a bottom lifting frame, welded and fixed side support frames on both sides of the bottom lifting frame, and embedded lifting struts installed inside the bottom lifting frame.

[0015] The beneficial effects of this invention are: (1) An optical inspection device for fastener production and processing of the present invention has an electrically controlled flip frame hinged on both sides of the bottom surface of the portal frame, an electrically controlled conveyor belt installed inside the electrically controlled flip frame, and an optical inspection module fixedly installed on the upper side of both sides of the portal frame by a crossbeam, thereby performing optical scanning on the fasteners in the conveying process below from multiple angles, thereby improving the scanning range of the fasteners. (2) There are multiple built-in crossbeams inside the top assembly frame, and an electrically controlled flip plate is provided at the upper end of the built-in crossbeams, which can flip and adjust the fasteners on the surface to make its detection range wider. (3) The electrically controlled flip-up frames on both sides of the main frame adopt an electrically controlled flip-up structure design, which can be flipped upward for storage when idle and flipped outward for unfolding when busy. Combined with the lifting structure at the bottom of the main frame, the structure adjustment is more convenient, making it easier to store and transport. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the electrically controlled flip frame in this invention.

[0019] Figure 3 This is a schematic diagram of the internal structure of the electrically controlled conveyor belt in this invention.

[0020] In the diagram: 1. Portal main frame; 2. Electrically controlled tilting frame; 3. Electrically controlled conveyor belt; 4. Crossbeam; 5. Optical inspection module; 6. Side bottom support; 7. Horizontal separation groove; 8. Horizontal electrically controlled separation belt; 9. LED light; 10. Electrically controlled bottom support frame; 21. Bottom tilting frame; 22. Top assembly frame; 23. Bottom adjusting strut; 24. Built-in crossbeam; 25. Side guide rail; 26. Electrically controlled tilting plate; 27. Embedded adjusting strut; 31. Side slider; 32. Main assembly frame; 33. Drive wheel; 34. Driven wheel; 35. Support wheel; 36. External conveyor belt; 101. Bottom lifting frame; 102. Side support frame; 103. Embedded lifting strut. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] Figure 1 , Figure 2 and Figure 3 The optical inspection equipment shown is used in fastener production and processing. It includes a gantry main frame 1, an electrically controlled flip frame 2 hinged to both sides of the bottom surface of the gantry main frame 1, an electrically controlled conveyor belt 3 installed inside the electrically controlled flip frame 2, and optical inspection modules 5 fixedly installed on the upper ends of both sides of the gantry main frame 1 through crossbeams 4.

[0024] To facilitate lateral tilting adjustment, the inner bottom surface of the portal frame 1 has outwardly extending lateral bottom supports 6 on both sides. The electrically controlled tilting frame 2 includes a bottom tilting frame 21 hinged to the lateral bottom supports 6, a top mounting frame 22 fixedly installed on the bottom tilting frame 21, and a bottom adjustment support rod 23 for controlling the bottom tilting frame 21.

[0025] To facilitate internal assembly and electrically controlled translation adjustment, the top assembly frame 22 has a plurality of built-in crossbeams 24. Each built-in crossbeam 24 has a side guide rail 25 on its inner wall. The upper end of the built-in crossbeam 24 has an electrically controlled tilting plate 26. An embedded adjusting support rod 27 is installed on the inner wall of the side guide rail 25.

[0026] To facilitate electronic adjustment and conveying, the electronically controlled conveyor belt 3 includes a main assembly frame 32 with lateral sliders 31 on both sides, a drive wheel 33, a driven wheel 34, a support wheel 35, and an external conveyor belt 36 installed inside the main assembly frame 32.

[0027] The drive wheel 33 rotates to drive the external conveyor belt 36 to convey materials along the outside of the drive wheel 33, driven wheel 34, and support wheel 35.

[0028] To accommodate the horizontal arrangement, the drive wheel 33, driven wheel 34, support wheel 35, and external conveyor belt 36 are arranged horizontally inside the top assembly frame 22.

[0029] For bottom separation, a horizontally placed separation groove 7 with openings on both sides is installed on the bottom surface of the portal frame 1.

[0030] To facilitate bottom-mounted electronic separation, a horizontally positioned electronically controlled separation belt 8 is installed inside the horizontally positioned separation tank 7.

[0031] To facilitate downward lighting, the top surface of the portal frame 1 and the ends of the crossbeams 4 on both sides are equipped with LED lights 9 for downward illumination.

[0032] To facilitate bottom lifting, the lower ends of both sides of the portal frame 1 are provided with bottom openings, and the portal frame 1 is slidably installed with an electrically controlled bottom support frame 10 through the bottom openings.

[0033] To facilitate electric lifting, the electric bottom support frame 10 includes a bottom lifting frame 101, side support frames 102 welded and fixed to both sides of the bottom lifting frame 101, and embedded lifting struts 103 installed inside the bottom lifting frame 101.

[0034] The top extension of the embedded lifting strut 103 is fixed to the bottom openings on both sides of the lower end of the portal frame 1, thereby adjusting the height of the portal frame 1 and facilitating the adjustment of the electrically controlled flip frame 2.

[0035] Work process The equipment operates according to a complete process of "preparation-debugging-transportation-detection-separation-storage," with each step being electrically automated. The specific steps are as follows: When the main power supply of the equipment is turned on and the control system is started, the system automatically performs initial self-tests of each component, including camera calibration of the optical detection module 5, telescopic function test of the electronically controlled bottom support frame 10, zeroing of the flip angle of the electronically controlled flip frame 2, and no-load operation test of the horizontal electronically controlled separation belt 8, etc. After ensuring that each component is fault-free, it enters the standby state.

[0036] Based on the current fastener specifications and testing requirements, the target detection height, the unfolding angle of the electrically controlled flipping frame 2, and the feeding speed are input into the control system.

[0037] Height adjustment: The control system drives the embedded lifting strut 103 of the electrically controlled bottom support frame 10 to extend and retract, thereby raising or lowering the portal main frame 1 until the preset detection height is reached. At this time, the side support frame 102 is in close contact with the ground, ensuring the overall stability of the equipment without shaking.

[0038] The flipping frame unfolds: the control system controls the bottom side adjusting support rod 23 to extend, driving the bottom side flipping frame 21 to flip outward around the side bottom support 6. When the top assembly frame 22 flips to the working position parallel to the ground, the bottom side adjusting support rod 23 stops extending and locking. At this time, the electrically controlled conveyor belt 3 is in a horizontal conveying state.

[0039] Conveyor belt positioning: According to the detection range requirements, the control system drives the embedded adjustment support rod 27 to extend and retract, pushing the main assembly frame 32 to move horizontally along the side guide rail 25, adjusting the electronically controlled conveyor belt 3 to the optimal scanning area of ​​the optical detection module 5, and then locking the embedded adjustment support rod 27 in position.

[0040] Lighting on: The control system activates LED light 9 and adjusts the brightness to the preset value to ensure uniform light coverage of the detection area without any blind spots.

[0041] The fasteners to be inspected are batched into the input end of the external conveyor belt 36 of the electronically controlled conveyor belt 3. The control system starts the drive motor of the drive wheel 33. The drive wheel 33 rotates and drives the external conveyor belt 36 to move. The fasteners move smoothly along the external conveyor belt 36 in the direction of drive wheel 33 → support wheel 35 → driven wheel 34. The moving speed matches the scanning frequency of the optical detection module 5 (to avoid missed scans due to excessive speed).

[0042] During the movement of the fastener, the electrically controlled tilting plate 26 inside the top assembly frame 22 is in an initial horizontal state, which plays an auxiliary guiding role for the fastener, ensuring that the fastener is neatly arranged on the external conveyor belt 36 and avoiding stacking or displacement.

[0043] First-side scan: When the fastener moves to the scanning area of ​​the optical inspection module 5, the high-definition camera of the optical inspection module 5 begins to continuously collect image data of the upper surface of the fastener and transmits it synchronously to the built-in image analysis system. The system analyzes and judges the dimensional accuracy and appearance defects of the upper surface of the fastener in real time through preset size standards and defect feature library, and records the inspection data.

[0044] Fastener flipping: After the first scan, the fastener continues to move with the external conveyor belt 36. When it reaches the top of the electrically controlled flipping plate 26, the control system drives the electrically controlled flipping plate 26 to flip upward quickly, flipping the fastener 180° so that the lower surface faces upward. Then the electrically controlled flipping plate 26 returns to the horizontal state.

[0045] Second scan: After the fastener is flipped over, it continues to move, and the optical inspection module 5 performs a second scan on its upward-facing lower surface. The image analysis system performs size and defect detection again to complete the full surface inspection coverage of the fastener. If both scans meet the standard, it is judged as a qualified product; if either scan has a size deviation or defect that exceeds the standard, it is judged as a non-qualified product.

[0046] Qualified product conveying: Fasteners that are determined to be qualified products continue to move with the external conveyor belt 36 and fall from the output end of the electrically controlled conveyor belt 3 into the preset qualified product collection container to complete the collection.

[0047] Defective Product Separation: When the control system determines that a fastener is defective, it immediately sends a start signal to the horizontally placed electrically controlled separation belt 8. When the defective fastener moves with the external conveyor belt 36 to the top of the horizontally placed separation tank 7, the horizontally placed electrically controlled separation belt 8 starts quickly and operates at a speed higher than that of the external conveyor belt 36. Through friction, the defective fastener is transferred from the external conveyor belt 36 to the horizontally placed electrically controlled separation belt 8. Subsequently, the defective fastener is transported by the horizontally placed electrically controlled separation belt 8 to one side opening of the horizontally placed separation tank 7 and falls into the defective product collection container, realizing the synchronous separation of qualified and defective products. The separation process does not affect the normal conveying and testing of other fasteners.

[0048] After all fasteners to be inspected have been conveyed, inspected and separated, the control system first shuts down the drive motor of the drive wheel 33 and the external conveyor belt 36 stops running; then the LED light 9 is turned off and the optical inspection module 5 stops scanning; finally, the horizontally placed electronically controlled separation belt 8 is stopped running.

[0049] Storage operation: The control system controls the bottom side adjusting support rod 23 to retract, driving the bottom side flip frame 21 to flip upward around the side bottom support 6 until the top mounting frame 22 fits against the inside of the portal frame 1, completing the storage of the electrically controlled flip frame 2; then the embedded lifting support rod 103 is controlled to retract, driving the portal frame 1 to descend to the lowest height, reducing the space occupied by the equipment and facilitating subsequent storage and transportation.

[0050] Turn off the main power supply to the equipment to complete this test.

[0051] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An optical inspection device for fastener production and processing, comprising a gantry-type main frame (1), characterized in that: The portal frame (1) has an electrically controlled flipping frame (2) hinged on both sides of the bottom surface. The electrically controlled flipping frame (2) is equipped with an electrically controlled conveyor belt (3). The upper ends of both sides of the portal frame (1) are fixedly installed with an optical detection module (5) via a crossbeam (4).

2. The optical inspection equipment for fastener production and processing according to claim 1, characterized in that: The portal frame (1) has outwardly extending side bottom supports (6) on both sides of the inner bottom surface. The electrically controlled flip frame (2) includes a bottom flip frame (21) hinged to the side bottom support (6), a top mounting frame (22) fixedly installed on the bottom flip frame (21), and a bottom adjusting support rod (23) for controlling the bottom flip frame (21).

3. The optical inspection equipment for fastener production and processing according to claim 2, characterized in that: The top assembly frame (22) has a plurality of built-in crossbeams (24) inside. Each of the built-in crossbeams (24) has a side guide rail (25) on its inner wall. The upper end of the built-in crossbeams (24) has an electrically controlled flipping plate (26). An embedded adjusting support rod (27) is installed on the inner wall of the side guide rail (25).

4. The optical inspection equipment for fastener production and processing according to claim 3, characterized in that: The electrically controlled conveyor belt (3) includes a main assembly frame (32) with lateral sliders (31) on both sides, a drive wheel (33), a driven wheel (34), a support wheel (35) and an external conveyor belt (36) installed inside the main assembly frame (32).

5. An optical inspection device for fastener production and processing according to claim 4, characterized in that: The driving wheel (33), driven wheel (34), support wheel (35) and external conveyor belt (36) are arranged horizontally inside the top assembly frame (22).

6. The optical inspection equipment for fastener production and processing according to claim 1, characterized in that: The bottom surface of the portal frame (1) is equipped with a horizontally placed separation groove (7) with openings on both sides.

7. An optical inspection device for fastener production and processing according to claim 6, characterized in that: The horizontally placed separation tank (7) is equipped with a horizontally placed electrically controlled separation belt (8).

8. An optical inspection device for fastener production and processing according to claim 1, characterized in that: The portal frame (1) has LED lights (9) for downward lighting on the top surface and the ends of the crossbeams (4) on both sides.

9. An optical inspection device for fastener production and processing according to claim 1, characterized in that: The lower ends of both sides of the portal frame (1) are provided with bottom openings, and the portal frame (1) is slidably installed with an electrically controlled bottom support frame (10) through the bottom openings.

10. An optical inspection device for fastener production and processing according to claim 9, characterized in that: The electrically controlled bottom support frame (10) includes a bottom lifting frame (101), a side support frame (102) welded and fixed on both sides of the bottom lifting frame (101), and an embedded lifting strut (103) installed inside the bottom lifting frame (101).

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