A visual inspection device for metal pieces

Abstract

The utility model belongs to detection equipment technical field relates to a kind of visual inspection device for metal piece, including machine table, and the machine table is equipped with incoming material conveying mechanism, the two sides of the incoming material conveying mechanism are equipped with feeding mechanism and detection mechanism respectively, the top of the detection mechanism is equipped with shift mechanism, the other side of the detection mechanism is equipped with discharge conveying mechanism, NG blanking mechanism is equipped between the discharge conveying mechanism and the detection mechanism, the end of the discharge conveying mechanism is connected with blanking mechanism.The device can automatically realize the feeding of metal piece, model detection, size detection, flatness detection, NG product blanking and discharge, greatly improve the detection efficiency, can adapt to the production demand of large quantities.

Description

Technical Field

[0001] This utility model relates to the field of inspection equipment technology, and in particular to a visual inspection device for metal parts. Background Technology

[0002] Metal parts are a general term for metal products. For more precise metal parts, surface inspection is required after processing. Existing visual inspection devices have a low degree of automation, requiring manual loading and unloading. Metal parts requiring double-sided inspection also need to be manually flipped, which consumes a lot of manpower, is inefficient, and workers are prone to fatigue after long hours of work, easily leading to confusion between good and defective products. Therefore, this utility model proposes a visual inspection device for metal parts. Utility Model Content

[0003] The main objective of this invention is to provide a visual inspection device for metal parts, in order to solve the problems mentioned in the background art.

[0004] This utility model achieves the above-mentioned objective through the following technical solution: a visual inspection device for metal parts, including a machine base, a material conveying mechanism on the machine base, a feeding mechanism and an inspection mechanism on both sides of the material conveying mechanism, a transfer mechanism above the inspection mechanism, a discharge conveying mechanism on the other side of the inspection mechanism, an NG unloading mechanism between the discharge conveying mechanism and the inspection mechanism, and an unloading mechanism connected to the end of the discharge conveying mechanism.

[0005] The material conveying mechanism includes a first support and a conveyor line consisting of two synchronous belts mounted on the first support. The two synchronous belts are connected by drive pulleys and driven pulleys located at both ends of the first support. The drive pulleys are driven by a first servo motor. Limiting blocks are provided on both sides of the conveyor line near the feeding mechanism. Guide side plates are provided on both sides of the conveyor line near the detection mechanism. The two guide side plates are flared at the ends near the limiting blocks, and a material stop block is provided between the other ends of the two guide side plates.

[0006] The feeding mechanism includes a support plate connected to the machine base via a Y-axis servo motion module. Multiple carrier trays are placed on the support plate, each containing multiple metal parts. An XZ-axis servo motion module is mounted on the machine base via a support rod. One end of the XZ-axis servo motion module extends above the support plate. A mounting plate is connected to the bottom of the Z-axis of the XZ-axis servo motion module. Multiple gripping assemblies are distributed along the X-axis on the front of the mounting plate. Each gripping assembly includes a U-shaped block with an outward-facing opening vertically connected to the mounting plate. A movable rod is vertically threaded through the two vertical sections of the U-shaped block. A spring is fitted onto the portion of the movable rod located between the two vertical sections of the U-shaped block. The top end of the spring is connected to the top surface inside the U-shaped block, and the bottom end of the spring is fixedly connected to the outer wall of the movable rod. A connecting block is provided at the bottom end of the movable rod. Multiple vacuum suction cups are provided on the lower end face of the connecting block. The vacuum suction cups are connected to a vacuum pump via pipes and solenoid valves.

[0007] The testing mechanism includes a second support plate mounted on the machine platform via a second bracket. The upper surface of the second support plate is sequentially provided with a first testing station, a second testing station, and a flatness testing station. Each of the first, second, and flatness testing stations includes a through hole on the second support plate. A material support plate is located above the through hole on the upper surface of the second support plate. The material support plate has a square through hole, and second limiting blocks are provided around the inner walls of the square through hole. The second limiting blocks around the square through hole form a limiting groove. A material support plate extending towards the center is provided at the bottom of a pair of second limiting blocks on the inner walls. A first testing camera is mounted below the first testing station via a bracket. A first testing hole is provided on the table surface of the machine platform. A second testing camera is mounted above the second testing station via a bracket. A laser detector is mounted below the flatness testing station.

[0008] The transfer mechanism includes a PPU handling module mounted on the second support plate via a third bracket. The bottom end of the PPU handling module is connected to a second mounting plate, and the front of the second mounting plate is provided with five second material gripping components along its length.

[0009] The NG unloading mechanism includes a first cylinder mounted on the machine platform via a fourth bracket. The extension and retraction direction of the first cylinder is perpendicular to the length direction of the material conveying mechanism. An L-shaped plate is fixed on the top rod of the first cylinder. A connecting plate is fixed on the upper end face of the L-shaped plate. A receiving block is fixed on the upper end face of the connecting plate away from the first cylinder. A temporary storage groove is provided on the upper end face of the receiving block. An NG unloading slide plate is connected to the lower end face of the connecting plate.

[0010] Below the NG unloading slide is a material distribution assembly, which includes an unloading slide vertically mounted on the machine platform. The bottom end of the unloading slide has three branch slides. Below the three branch slides are respectively a mixed NG material frame, a size NG material frame, and a flatness NG material frame. The top of the middle branch slide has guide plates on both sides via a rotating shaft. The two guide plates are aligned with the two sides of the inner wall of the unloading slide. The rotating shaft is driven by a rotary cylinder.

[0011] The discharge conveying mechanism includes a conveyor belt mounted on the machine platform via a fifth bracket. The end of the conveyor belt is provided with a second discharge chute via a sixth bracket. The bottom of the second discharge chute is provided with two second branch chutes. A good product frame is placed below each of the two second branch chutes. A second guide plate is rotatably provided at the middle position of the top of the two second branch chutes via a second rotating shaft. The second guide plate is driven by a rotary cylinder.

[0012] The beneficial effects of this utility model are: the device can automatically realize the feeding, model detection, size detection, flatness detection, unloading and discharge of metal parts. The first detection camera located below the first detection station and the second detection camera located above the second detection station can detect both sides of the metal parts respectively without flipping them over, which greatly improves the detection efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a visual inspection device for metal parts, as shown in the embodiment.

[0014] Figure 2 This is a schematic diagram of the material conveying mechanism.

[0015] Figure 3 This is a schematic diagram of the feeding mechanism.

[0016] Figure 4 This is a schematic diagram of the material handling assembly.

[0017] Figure 5 This is a partial structural diagram of the testing organization.

[0018] Figure 6 This is a schematic diagram of the material support plate structure.

[0019] Figure 7 This is a schematic diagram of the transfer mechanism.

[0020] Figure 8 This is a schematic diagram of the material discharge conveying mechanism.

[0021] Figure 9 This is a schematic diagram of the NG feeding mechanism.

[0022] Figure 10 This is a schematic diagram of the material distribution component.

[0023] The numbers in the diagram represent: 1. Material conveying mechanism; 101. First support; 102. Synchronous belt; 103. Conveyor line; 104. Limit block; 105. Guide side plate; 106. Stop block; 2. Loading mechanism; 201. Y-axis servo moving module; 202. Support plate; 203. Carrier tray; 204. Support rod; 205. XZ-axis servo moving module; 206. Mounting plate; 207. Material gripping assembly; 2071. U-shaped block; 2072. Movable rod; 2073. Connecting block; 2074. Vacuum suction cup; 2075. Spring; 3. Detection mechanism; 301. Second bracket; 302. Second support plate; 303. First detection station; 304. Second detection station; 305. Flatness detection station; 306. Through hole; 307. Material support plate; 308. Square through hole; 309. Second limiting block; 310. Material support plate; 311. First detection camera; 312. First detection hole; 313. Second detection camera; 314. Laser detection Instrument; 4. Transfer mechanism; 401. Third bracket; 402. PPU handling module; 403. Second mounting plate; 404. Second material gripping assembly; 5. Discharge conveying mechanism; 501. Fifth bracket; 502. Conveyor belt; 503. Sixth bracket; 504. Second unloading chute; 505. Second branch chute; 506. Good product material frame; 507. Second rotating shaft; 508. Second guide plate; 6. NG unloading mechanism; 601. Fourth bracket; 602. First 603. Cylinder; 604. L-shaped plate; 605. Connecting plate; 606. Receiving block; 607. Temporary storage slot; 608. NG unloading slide plate; 609. Material distribution assembly; 6081. Unloading slide; 6082. Branch slide; 6083. Mixing NG material frame; 6084. Size NG material frame; 6085. Rotating shaft; 6086. Guide plate; 6087. Rotary cylinder; 6088. Flatness NG material frame; 7. Unloading mechanism; 8. Machine base; 9. Metal parts. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to specific embodiments.

[0025] Example: like Figure 1-10 As shown, a visual inspection device for metal parts according to the present invention includes a machine base 8, on which a material conveying mechanism 1 is provided. A feeding mechanism 2 and an inspection mechanism 3 are respectively provided on both sides of the material conveying mechanism 1. A transfer mechanism 4 is provided above the inspection mechanism 3. A discharge conveying mechanism 5 is provided on the other side of the inspection mechanism 3. An NG unloading mechanism 6 is provided between the discharge conveying mechanism 5 and the inspection mechanism 3. The end of the discharge conveying mechanism 5 is connected to an unloading mechanism 7.

[0026] The material conveying mechanism 1 includes a first support 101 and a conveyor line 103 consisting of two synchronous belts 102 mounted on the first support 101. The two synchronous belts 102 are connected by a drive pulley and a driven pulley located at both ends of the first support 101. The drive pulley is driven by a first servo motor. Limiting blocks 104 are provided on both sides of the conveyor line 103 near the end of the feeding mechanism 2. Guide side plates 105 are provided on both sides of the conveyor line 103 near the end of the detection mechanism 3. The two guide side plates 105 are flared at the end near the limiting block 104, and a baffle block 106 is provided between the other ends of the two guide side plates 105.

[0027] The feeding mechanism 2 includes a support plate 202 connected to the machine base 8 via a Y-axis servo movement module 201. Multiple carrier trays 203 are placed on the support plate 202, and multiple metal parts 9 are loaded within the carrier trays 203. An XZ-axis servo movement module 205 is mounted on the machine base 8 via a support rod 204. One end of the XZ-axis servo movement module 205 extends above the support plate 202. A mounting plate 206 is connected to the bottom end of the Z-axis of the XZ-axis servo movement module 205. Multiple gripping components 207 are distributed along the X-axis direction on the front side of the mounting plate 206. Each gripping component 207 includes components vertically connected to the mounting plate 206. A U-shaped block 2071 with its opening facing outwards has two vertically extending movable rods 2072. A spring 2075 is fitted onto the portion of the movable rod 2072 located between the two vertical portions of the U-shaped block 2071. The top end of the spring 2075 is connected to the top surface inside the U-shaped block 2071, and the bottom end of the spring 2075 is fixedly connected to the outer wall of the movable rod 2072. A connecting block 2073 is provided at the bottom end of the movable rod 2072, and multiple vacuum suction cups 2074 are provided on the lower end face of the connecting block 2073. The vacuum suction cups 2074 are connected to a vacuum pump through pipes and solenoid valves.

[0028] The testing mechanism 3 includes a second support plate 302 mounted on the machine base 8 via a second bracket 301. The upper surface of the second support plate 302 is sequentially provided with a first testing station 303, a second testing station 304, and a flatness testing station 305. Each of the first testing station 303, the second testing station 304, and the flatness testing station 305 includes a through hole 306 on the second support plate 302. A material support plate 307 is located above the through hole 306 on the upper surface of the second support plate 302. The material support plate 307 has a square... A through hole 308 is provided. The inner wall of the square through hole 308 is provided with second limiting blocks 309 on all four sides. The second limiting blocks 309 on all four sides form a limiting groove. The bottom of a pair of second limiting blocks 309 on the inner wall is provided with a material support plate 310 extending towards the middle. A first detection camera 311 is provided below the first detection station 303 by means of a bracket. A first detection hole 312 is provided on the table surface of the machine table 8. A second detection camera 313 is provided above the second detection station 304 by means of a bracket. A laser detector 314 is provided below the flatness detection station 305.

[0029] The transfer mechanism 4 includes a PPU handling module 402 mounted on the second support plate 302 via a third bracket 401. The bottom end of the PPU handling module 402 is connected to a second mounting plate 403. The front of the second mounting plate 403 is provided with five second material gripping components 404 along its length. The second material gripping components 404 have the same structure as the material gripping component 207.

[0030] The NG unloading mechanism 6 includes a first cylinder 602 mounted on the machine base 8 via a fourth bracket 601. The extension and retraction direction of the first cylinder 602 is perpendicular to the length direction of the material conveying mechanism 1. An L-shaped plate 603 is fixed on the top rod of the first cylinder 602. A connecting plate 604 is fixed on the upper end face of the L-shaped plate 603. A receiving block 605 is fixed on the side of the upper end face of the connecting plate 604 away from the first cylinder 602. A temporary storage groove 606 is provided on the upper end face of the receiving block 605. An NG unloading slide plate 607 is connected to the lower end face of the connecting plate 604.

[0031] Below the NG unloading slide plate 607 is a material distribution component 608. The material distribution component 608 includes an unloading slide 6081 vertically mounted on the machine base 8. The bottom end of the unloading slide 6081 is provided with three branch slides 6082. Below the three branch slides 6082 are respectively provided a mixed NG material frame 6083, a size NG material frame 6084, and a flatness NG material frame 6088. The top of the middle branch slide 6082 is provided with guide plates 6086 on both sides via a rotating shaft 6085. The two guide plates 6086 are aligned with the two sides of the inner wall of the unloading slide 6081. The rotating shaft 6085 is driven by a rotary cylinder 6087.

[0032] The discharge conveying mechanism 5 includes a conveyor belt 502 mounted on the machine base 8 via a fifth bracket 501. The end of the conveyor belt 502 is provided with a second discharge slide 504 via a sixth bracket 503. The bottom end of the second discharge slide 504 is provided with two second branch slides 505. A good product frame 506 is placed below each of the two second branch slides 505. A second guide plate 508 is rotatably provided at the middle position of the top of the two second branch slides 505 via a second rotating shaft 507. The second guide plate 508 is driven by a rotary cylinder.

[0033] The working process of this application is as follows: The XZ axis servo moving module 205 drives multiple gripping components 207 to grip and transport the metal parts 9 in the carrier 203 to the conveyor line 103. The multiple metal parts 9 are transported to the right along the conveyor line 103. The metal part located at the rightmost end of the conveyor line 103 is blocked by the stop block 106. The PPU handling module 402 drives the second gripping component 404 to perform lateral handling. The metal part located at the stop block 106 is transported to the first inspection station 303. The first inspection camera 311 performs a shape inspection on the lower end face of the metal part. After the PPU handling module 402 performs dimension and size inspection, the metal part with the lower end face inspected is moved to the second inspection station 304. A new metal part located at the right end of the conveyor line 103 is placed in the first inspection station 303. The second inspection camera 313 performs dimension and signal inspection on the upper end face of the metal part located in the second inspection station 304. The PPU handling module 402 performs the same inspection again, and the metal part with the upper end face inspected is moved to the flatness inspection station 305. The laser inspection instrument 314 then performs flatness inspection on the metal part. During the inspection, the PPU handling module 402 handles the metal parts again. If the metal parts are good after being inspected at the first inspection station 303, the second inspection station 304, and the flatness inspection station 305, they are transported to the temporary storage tank 606. When the PPU handling module 402 handles the metal parts again, the good metal parts in the temporary storage tank 606 are transported to the conveyor belt 502 for discharge. If the metal parts reaching the flatness inspection station 305 are detected as defective, the push rod of the first cylinder 602 retracts, and the NG unloading slide plate 607 moves to the rightmost position of the second... Below the material gripping assembly 404, when the PPU handling module 402 handles the material again, the defective products located in the flatness detection station 305 are transported to the NG unloading slide plate 607 for unloading. The rotary cylinder 6087 drives the rotating shaft 6085 to rotate the guide plate 6086, which can switch the unloading slide 6081 to connect with the three branch slides 6082 respectively. This allows NG products with mismatched models, dimensional defects, and flatness defects to be unloaded into the mixed NG product frame 6083, the dimensional NG product frame 6084, and the flatness NG product frame, respectively.

[0034] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A visual inspection apparatus for metal pieces, characterized in that: The machine includes a machine base, on which an incoming material conveying mechanism is provided. On both sides of the incoming material conveying mechanism are a feeding mechanism and a detection mechanism, respectively. Above the detection mechanism is a transfer mechanism, and on the other side of the detection mechanism is an outgoing material conveying mechanism. An NG unloading mechanism is provided between the outgoing material conveying mechanism and the detection mechanism. The end of the outgoing material conveying mechanism is connected to the unloading mechanism.

2. A visual inspection apparatus for metal pieces according to claim 1, characterized in that: The material conveying mechanism includes a first support and a conveyor line consisting of two synchronous belts mounted on the first support. The two synchronous belts are connected by drive pulleys and driven pulleys located at both ends of the first support. The drive pulleys are driven by a first servo motor. Limiting blocks are provided on both sides of the conveyor line near the feeding mechanism. Guide side plates are provided on both sides of the conveyor line near the detection mechanism. The two guide side plates are flared at the ends near the limiting blocks, and a material stop block is provided between the other ends of the two guide side plates.

3. A visual inspection apparatus for metal pieces as claimed in claim 1, wherein: The feeding mechanism includes a support plate connected to the machine base via a Y-axis servo motion module. Multiple carrier trays are placed on the support plate, each containing multiple metal parts. An XZ-axis servo motion module is mounted on the machine base via a support rod. One end of the XZ-axis servo motion module extends above the support plate. A mounting plate is connected to the bottom of the Z-axis of the XZ-axis servo motion module. Multiple gripping assemblies are distributed along the X-axis on the front of the mounting plate. Each gripping assembly includes a U-shaped block with an outward-facing opening vertically connected to the mounting plate. A movable rod is vertically threaded through the two vertical sections of the U-shaped block. A spring is fitted onto the portion of the movable rod located between the two vertical sections of the U-shaped block. The top end of the spring is connected to the top surface inside the U-shaped block, and the bottom end of the spring is fixedly connected to the outer wall of the movable rod. A connecting block is provided at the bottom end of the movable rod. Multiple vacuum suction cups are provided on the lower end face of the connecting block. The vacuum suction cups are connected to a vacuum pump via pipes and solenoid valves.

4. The visual inspection apparatus for metal pieces according to claim 1, wherein: The testing mechanism includes a second support plate mounted on the machine platform via a second bracket. The upper surface of the second support plate is sequentially provided with a first testing station, a second testing station, and a flatness testing station. Each of the first, second, and flatness testing stations includes a through hole on the second support plate. A material support plate is located above the through hole on the upper surface of the second support plate. The material support plate has a square through hole, and second limiting blocks are provided around the inner walls of the square through hole. The second limiting blocks around the square through hole form a limiting groove. A material support plate extending towards the center is provided at the bottom of a pair of second limiting blocks on the inner walls. A first testing camera is mounted below the first testing station via a bracket. A first testing hole is provided on the table surface of the machine platform. A second testing camera is mounted above the second testing station via a bracket. A laser detector is mounted below the flatness testing station.

5. A visual inspection apparatus for metal pieces as claimed in claim 1, wherein: The transfer mechanism includes a PPU handling module mounted on the second support plate via a third bracket. The bottom end of the PPU handling module is connected to a second mounting plate, and the front of the second mounting plate is provided with five second material gripping components along its length.

6. A visual inspection apparatus for metal pieces according to claim 1, characterized in that: The NG unloading mechanism includes a first cylinder mounted on the machine platform via a fourth bracket. The extension and retraction direction of the first cylinder is perpendicular to the length direction of the material conveying mechanism. An L-shaped plate is fixed on the top rod of the first cylinder. A connecting plate is fixed on the upper end face of the L-shaped plate. A receiving block is fixed on the upper end face of the connecting plate away from the first cylinder. A temporary storage groove is provided on the upper end face of the receiving block. An NG unloading slide plate is connected to the lower end face of the connecting plate.

7. A visual inspection apparatus for metal pieces according to claim 6, characterized in that: Below the NG unloading slide is a material distribution assembly, which includes an unloading slide vertically mounted on the machine platform. The bottom end of the unloading slide has three branch slides. Below the three branch slides are respectively a mixed NG material frame, a size NG material frame, and a flatness NG material frame. The top of the middle branch slide has guide plates on both sides via a rotating shaft. The two guide plates are aligned with the two sides of the inner wall of the unloading slide. The rotating shaft is driven by a rotary cylinder.

8. A visual inspection apparatus for metal pieces according to claim 1, characterized in that: The discharge conveying mechanism includes a conveyor belt mounted on the machine platform via a fifth bracket. The end of the conveyor belt is provided with a second discharge chute via a sixth bracket. The bottom of the second discharge chute is provided with two second branch chutes. A good product frame is placed below each of the two second branch chutes. A second guide plate is rotatably provided at the middle position of the top of the two second branch chutes via a second rotating shaft. The second guide plate is driven by a rotary cylinder.

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