Precise sheet metal part detection device

Abstract

The invention relates to the technical field of precision sheet metal part detection, in particular to a precision sheet metal part detection device which comprises a supporting frame, the upper end of the supporting frame is fixedly connected with two sets of straight plates, the upper ends of the two sets of straight plates are jointly provided with a driving assembly, and the upper end of the driving assembly is provided with a precision sheet metal part. A measuring assembly is arranged at the upper end of the driving assembly, the driving assembly comprises two sets of sliding blocks sliding on a straight plate, a rotating rod is rotationally connected between the two sets of sliding blocks, a plurality of sets of first rotating rings are fixedly connected to the outer side of the rotating rod, and supporting rods are fixedly connected to the outer sides of the first rotating rings; the precise sheet metal part cleaning device has the advantages that the inner wall of a precise sheet metal part can be scraped through the first scraping plate, the side wall of the precise sheet metal part is further cleaned, the bent position of the inner side of the precise sheet metal part can be scraped through the second scraping plate and the third scraping plate, and therefore the precision sheet metal part can be conveniently cleaned. And the cleanness of the bent part is ensured.

Description

Technical Field

[0001] This invention relates to the field of precision sheet metal parts inspection technology, specifically to a precision sheet metal parts inspection device. Background Technology

[0002] Sheet metal processing is a comprehensive cold working process for thin metal sheets (usually less than 6mm), including shearing, punching / cutting / combined cutting, bending, welding, riveting, splicing, and forming. Its most significant characteristic is that the thickness of the same part is consistent. Products processed through sheet metal processing are called precision sheet metal parts. The definition of precision sheet metal parts varies across different industries. After bending, precision sheet metal parts require sampling inspection, especially to check whether the bending angles are standard. However, existing angle inspection tools are cumbersome for inspecting the inner angles of precision sheet metal parts, and residual debris on the processed parts can affect the inspection results. Furthermore, the flatness of the surface after processing also needs to be checked. Therefore, we propose a precision sheet metal part inspection device. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of the prior art by proposing a precision sheet metal inspection device.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a precision sheet metal part inspection device, comprising a support frame, two sets of straight plates fixedly connected to the upper end of the support frame, a driving assembly commonly provided at the upper end of the two sets of straight plates, a precision sheet metal part provided at the upper end of the driving assembly, and a measuring assembly provided at the upper end of the driving assembly. The driving assembly includes two sets of sliders sliding on the straight plates, a rotating rod rotatably connected between the two sets of sliders, a plurality of first rotating rings fixedly connected to the outer side of the rotating rod, a support rod fixedly connected to the outer side of the first rotating rings, a first mounting plate fixedly connected to the upper end of the support rod, and a roller rotatably connected to the upper end of the first mounting plate. The measuring assembly includes a mounting frame fixedly connected to the support frame, a cylinder fixedly connected to the front end of the mounting frame, a pressure shaft fixedly connected to the output shaft of the cylinder, a first cleaning assembly for cleaning the inner side of the precision sheet metal part and a measuring device for measuring the inner corner of the precision sheet metal part provided on the outer side of the pressure shaft, and a roller rotatably connected to the lower end of the pressure shaft.

[0005] Preferably, two sets of first drive motors are fixedly installed on one side of the support frame, and the output shafts of the two sets of first drive motors are respectively fixedly connected to two sets of rotating rods. A second drive motor is fixedly installed at one end of the two sets of first mounting plates near the two sides of the first mounting plate, and the output shaft of the second drive motor is fixedly connected to the roller.

[0006] Preferably, the first cleaning component includes a mounting rod fixedly connected to the pressure shaft. Two sets of rotating plates are fixedly connected to both ends of the mounting rod. A first rotating block is rotatably connected between the two sets of rotating plates. A second mounting plate is fixedly connected to the lower end of the first rotating block. An mounting piece is fixedly connected to the lower end of the second mounting plate. A cleaning roller is rotatably connected to one end of the mounting piece. A first scraper is provided on one side of the second mounting plate. A second cleaning component is provided at the other end of the second mounting plate.

[0007] Preferably, a plurality of sets of fixing blocks are fixedly connected to the upper end of the second mounting plate, and a rotating shaft is rotatably connected to the inner side of the plurality of sets of fixing blocks. A connecting plate is rotatably connected between two adjacent sets of fixing blocks. A torsion spring is provided on the outer side of the rotating shaft. One end of the torsion spring is fixedly connected to the fixing block, and the other end of the torsion spring is fixedly connected to the connecting plate. The connecting plate is fixedly connected to the first scraper.

[0008] Preferably, the second cleaning component includes a rotating column fixedly connected to a second mounting plate, an outer ring rotatably connected to the outer side of the rotating column, a slide cylinder fixedly connected to the outer side of the outer ring, a slide shaft slidably connected to the inner side of the slide cylinder, a second scraper and a third scraper respectively fixedly connected to the lower ends of the two sets of slide shafts, a second rotating block fixedly connected to the rear end of the third scraper, and the second rotating block rotatably connected to the second scraper.

[0009] Preferably, the measuring device includes a connecting column fixedly connected to the pressure shaft, a mounting column fixedly connected to one end of the connecting column, two sets of electric actuators fixedly connected to both ends of the mounting column, a plate rotatably connected to the lower ends of the two sets of electric actuators, two U-shaped plates fixedly connected to the upper end of the plate, the lower ends of the electric actuators rotatably connected to the inner side of the U-shaped plates, and an angle sensor fixedly connected to the upper end of the plate.

[0010] Preferably, two sets of fixing rods are fixedly connected to one side of the mounting plate. The fixing rods are L-shaped. A third mounting plate is fixedly connected to one side of both sets of fixing rods. Several sets of marking components are provided at the lower end of the third mounting plate. Each marking component includes a slide rod and a liquid storage tank that are slidably connected to the third mounting plate. The upper end of the slide rod is inclined toward the side of the liquid storage tank. A pressure ring is fixedly connected to the outer side of the slide rod. A connecting pipe is fixedly connected to the outer side of the liquid storage tank. A marking ring is fixedly connected to one end of the connecting pipe. The liquid storage tank, the connecting pipe, and the marking ring are interconnected. The marking ring is sleeved on the outer side of the slide rod and is located at the lower end of the pressure ring. A ball is rotatably connected to the lower end of the slide rod.

[0011] Preferably, a first spring is provided on the outer side of the slide rod, a second spring is sleeved on the outer side of the liquid storage tank, a retaining ring is fixedly connected to the outer side of the liquid storage tank, the lower end of the second spring is fixedly connected to the retaining ring, the elastic force of the first spring is greater than that of the retaining ring, and the bottom end of the ball of the retaining ring is higher than the plate under normal conditions.

[0012] Preferably, the upper end of the slide bar is fixedly connected to two sets of third rotating blocks, and a connecting rod is rotatably connected between the two sets of third rotating blocks. The upper end of the liquid storage tank is provided with a rotating groove, and the lower end of the connecting rod is rotatably connected to the inner side of the rotating groove.

[0013] Compared with the prior art, the present invention provides a precision sheet metal parts inspection device, which has the following beneficial effects: 1. The precision sheet metal part inspection device utilizes a first drive motor to drive a rotating rod to rotate on a slider, thereby using a first rotating ring to drive a support rod to rotate, and then adjusting the angle of the first mounting plate so that the roller can be in close contact with the outer surface of the precision sheet metal part, facilitating the movement of the precision sheet metal part by the roller.

[0014] 2. This precision sheet metal part inspection device uses a cylinder to push the pressure shaft downward, making the rollers fit tightly against the precision sheet metal part. A mounting rod facilitates the downward movement of the cleaning roller, allowing the side of the precision sheet metal part to press against the cleaning roller. A second mounting plate drives the first rotating block to rotate inside the rotating plate, facilitating the adjustment of the cleaning roller's position and ensuring it fits tightly against the inner wall of the precision sheet metal part. A first scraper scrapes the inner wall of the precision sheet metal part, further cleaning its sidewalls. Second and third scrapers scrape the inner corners of the precision sheet metal part, ensuring the bends are clean. A sliding shaft and a sliding cylinder facilitate the bending of the second and third scrapers.

[0015] 3. This precision sheet metal part inspection device can adjust the angle of the mounting plate through an electric push rod to make the mounting plate fit tightly with the precision sheet metal part. The U-shaped plate makes it easier for the mounting plate to fit tightly with the precision sheet metal part. Two sets of angle sensors can detect the tilt angle of the two sides of the precision sheet metal part, which is convenient for detecting the tilt angle of the inner corner of the precision sheet metal part.

[0016] 4. This precision sheet metal part inspection device uses a fixed rod to move a third mounting plate, causing a ball to press against the inner side of the precision sheet metal part. This presses a sliding rod upward, and a second spring moves a retaining ring, causing the liquid storage tank to move upward. This raises the marking ring slightly above the inner wall of the precision sheet metal part, preventing the marking ring from marking flat areas. When a protrusion appears on the precision sheet metal part, the ball continues to push the sliding rod upward. At this time, one end of the connecting rod shifts upward, causing the other end of the connecting rod to shift downward, moving the liquid storage tank downward. This allows the marking ring to mark the protrusion. When a depression appears on the precision sheet metal part, a pressure ring presses the marking ring downward, causing the liquid storage tank to follow the marking ring downward, marking the depression. This facilitates the detection of protrusions and depressions on the inner side of the precision sheet metal part. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial structural diagram of the present invention. Figure 1 ; Figure 3 This is a partial structural diagram of the present invention. Figure 2 ; Figure 4 This is a schematic diagram of the measurement component structure of the present invention; Figure 5 This is a cross-sectional view of the measuring component of the present invention; Figure 6 For the present invention Figure 5 Schematic diagram of the structure of the A method; Figure 7 This is a schematic diagram of the measurement component of the present invention. Figure 1 ; Figure 8 This is a schematic diagram of the measurement component of the present invention. Figure 2 ; Figure 9 This is a schematic diagram of the measurement component of the present invention. Figure 3 .

[0018] In the diagram: 1. Support frame; 2. Straight plate; 3. Drive assembly; 31. Slider; 32. Rotating rod; 33. First drive motor; 34. First rotating ring; 35. Support rod; 36. First mounting plate; 37. Roller; 38. Second drive motor; 4. Measuring assembly; 41. Mounting frame; 42. Cylinder; 43. Pressure shaft; 44. Roller; 45. First cleaning assembly; 451. Mounting rod; 452. Rotating plate; 453. First rotating block; 454. Second mounting plate; 455. Mounting piece; 456. Cleaning roller; 457. First scraper; 458. Second cleaning assembly; 4581. Rotating column; 4582. Outer ring; 4583. Slide cylinder; 4584. Slide shaft; 4585. Second scraper; 4586. Third... 4587. Scraper; 4588. Second rotating block; 459. Fixing block; 4510. Rotating shaft; 4511. Connecting plate; 4512. Torsion spring; 46. Measuring device; 461. Connecting column; 462. Mounting column; 463. Electric push rod; 464. Plate; 465. U-shaped plate; 466. Angle sensor; 467. Fixing rod; 468. Third mounting plate; 469. Marking assembly; 4691. Sliding rod; 4692. Pressure ring; 4693. Rolling ball; 4694. First spring; 4695. Liquid storage tank; 4696. Second spring; 4697. Retaining ring; 4698. Connecting pipe; 4699. Marking ring; 4610. Third rotating block; 4611. Connecting rod; 4612. Rotating groove; 5. Precision sheet metal parts. Detailed Implementation

[0019] The technical solutions of the present invention will now be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention.

[0020] Please see Figure 1 - Figure 9 A precision sheet metal part inspection device includes a support frame 1. Two sets of straight plates 2 are fixedly connected to the upper end of the support frame 1. A drive assembly 3 is commonly arranged at the upper end of the two sets of straight plates 2. A precision sheet metal part 5 is arranged at the upper end of the drive assembly 3. A measuring assembly 4 is arranged at the upper end of the drive assembly 3. The drive assembly 3 includes two sets of sliders 31 that slide on the straight plates 2. A rotating rod 32 is rotatably connected between the two sets of sliders 31. Several sets of first rotating rings 34 are fixedly connected to the outer side of the rotating rod 32. A support rod 35 is fixedly connected to the outer side of the first rotating rings 34. A first mounting plate 36 is fixedly connected to the upper end of the rod 35, and a roller 37 is rotatably connected to the upper end of the first mounting plate 36. The measuring component 4 includes a mounting frame 41 fixedly connected to the support frame 1. A cylinder 42 is fixedly connected to the front end of the mounting frame 41. A pressure shaft 43 is fixedly connected to the output shaft of the cylinder 42. A first cleaning component 45 for cleaning the inner side of the precision sheet metal part 5 and a measuring device 46 for measuring the inner angle of the precision sheet metal part 5 are provided on the outer side of the pressure shaft 43. A roller 44 is rotatably connected to the lower end of the pressure shaft 43.

[0021] In this embodiment, two sets of first drive motors 33 are fixedly installed on one side of the support frame 1. The output shafts of the two sets of first drive motors 33 are fixedly connected to two sets of rotating rods 32 respectively. A second drive motor 38 is fixedly installed at one end of the two sets of first mounting plates 36 near the two sides. The output shaft of the second drive motor 38 is fixedly connected to the roller 37.

[0022] Specifically, the first drive motor 33 can drive the rotating rod 32 to rotate on the slider 31, thereby driving the support rod 35 to rotate through the first rotating ring 34, and then adjusting the angle of the first mounting plate 36 so that the roller 37 can be closely attached to the outer surface of the precision sheet metal part 5, making it convenient for the roller 37 to drive the precision sheet metal part 5 to move.

[0023] In this embodiment, the first cleaning component 45 includes a mounting rod 451 fixedly connected to the pressure shaft 43. Two sets of rotating plates 452 are fixedly connected to both ends of the mounting rod 451. A first rotating block 453 is rotatably connected between the two sets of rotating plates 452. A second mounting plate 454 is fixedly connected to the lower end of the first rotating block 453. An mounting piece 455 is fixedly connected to the lower end of the second mounting plate 454. A cleaning roller 456 is rotatably connected to one end of the mounting piece 455. A first scraper 457 is provided on one side of the second mounting plate 454. A second cleaning component 458 is provided at the other end of the second mounting plate 454.

[0024] The upper end of the second mounting plate 454 is fixedly connected to several sets of fixing blocks 459. The inner sides of the several sets of fixing blocks 459 are rotatably connected to a rotating shaft 4510. A connecting plate 4511 is rotatably connected between two adjacent sets of fixing blocks 459. A torsion spring 4512 is provided on the outer side of the rotating shaft 4510. One end of the torsion spring 4512 is fixedly connected to the fixing block 459, and the other end of the torsion spring 4512 is fixedly connected to the connecting plate 4511. The connecting plate 4511 is fixedly connected to the first scraper 457.

[0025] Specifically, the cylinder 42 can push the pressure shaft 43 down, so that the roller 44 is close to the precision sheet metal part 5. The mounting rod 451 can facilitate the downward movement of the cleaning roller 456. The side of the precision sheet metal part 5 can squeeze the cleaning roller 456. The second mounting plate 454 drives the first rotating block 453 to rotate inside the rotating plate 452, which can facilitate the position adjustment of the cleaning roller 456 and make it easy for the cleaning roller 456 to be close to the inner wall of the precision sheet metal part 5. The first scraper 457 can scrape the inner wall of the precision sheet metal part 5, further cleaning the side wall of the precision sheet metal part 5.

[0026] In this embodiment, the second cleaning component 458 includes a rotating column 4581 fixedly connected to the second mounting plate 454. An outer ring 4582 is rotatably connected to the outer side of the rotating column 4581. A slide cylinder 4583 is fixedly connected to the outer side of the outer ring 4582. A slide shaft 4584 is slidably connected to the inner side of the slide cylinder 4583. A second scraper 4585 and a third scraper 4586 are fixedly connected to the lower ends of the two sets of slide shafts 4584, respectively. A second rotating block 4587 is fixedly connected to the rear end of the third scraper 4586. The second rotating block 4587 is rotatably connected to the second scraper 4585.

[0027] Specifically, the second scraper 4585 and the third scraper 4586 can scrape the inner bending area of ​​the precision sheet metal part 5 to ensure that the bending area is clean. The sliding shaft 4584 and the sliding cylinder 4583 can facilitate the bending of the second scraper 4585 and the third scraper 4586.

[0028] In this embodiment, the measuring device 46 includes a connecting column 461 fixedly connected to the pressure shaft 43. One end of the connecting column 461 is fixedly connected to a mounting column 462. Two sets of electric push rods 463 are fixedly connected to both ends of the mounting column 462. The lower ends of the two sets of electric push rods 463 are rotatably connected to a plate 464. The upper end of the plate 464 is fixedly connected to two sets of U-shaped plates 465. The lower ends of the electric push rods 463 are rotatably connected to the inner side of the U-shaped plates 465. An angle sensor 466 is fixedly connected to the upper end of the plate 464.

[0029] Specifically, the angle of the mounting plate 464 can be adjusted by the electric push rod 463 so that the mounting plate 464 is tightly attached to the precision sheet metal part 5. The U-shaped plate 465 makes it easier for the mounting plate 464 to be tightly attached to the precision sheet metal part 5. The two sets of angle sensors 466 can detect the tilt angle of the two sides of the precision sheet metal part 5, which makes it convenient to detect the tilt angle of the inner corner of the precision sheet metal part 5.

[0030] In this embodiment, two sets of fixing rods 467 are fixedly connected to one side of the mounting plate 464. The fixing rods 467 are L-shaped. A third mounting plate 468 is fixedly connected to one side of both sets of fixing rods 467. Several sets of marking components 469 are provided at the lower end of the third mounting plate 468. The marking components 469 include a slide rod 4691 slidably connected to the third mounting plate 468 and a liquid storage tank 4695. The upper end of the slide rod 4691 is inclined toward the side of the liquid storage tank 4695. A pressure ring 4692 is fixedly connected to the outside of 4691, and a connecting pipe 4698 is fixedly connected to the outside of the liquid storage tank 4695. A marking ring 4699 is fixedly connected to one end of the connecting pipe 4698. The liquid storage tank 4695, the connecting pipe 4698, and the marking ring 4699 are interconnected. The marking ring 4699 is sleeved on the outside of the slide rod 4691, and the marking ring 4699 is located at the lower end of the pressure ring 4692. A ball bearing 4693 is rotatably connected to the lower end of the slide rod 4691.

[0031] Specifically, the fixed rod 467 can drive the third mounting plate 468 to move, so that the ball 4693 is pressed against the inner side of the precision sheet metal part 5, and the sliding rod 4691 is pressed to slide upward. The second spring 4696 can drive the retaining ring 4697 to move, thereby moving the liquid storage tank 4695 upward, so that the marking ring 4699 is slightly higher than the inner wall of the precision sheet metal part 5, preventing the marking ring 4699 from marking flat areas.

[0032] In this embodiment, a first spring 4694 is provided on the outer side of the slide bar 4691, a second spring 4696 is sleeved on the outer side of the liquid storage tank 4695, a retaining ring 4697 is fixedly connected to the outer side of the liquid storage tank 4695, the lower end of the second spring 4696 is fixedly connected to the retaining ring 4697, the elastic force of the first spring 4694 is greater than that of the retaining ring 4697, and the bottom end of the ball 4693 of the retaining ring 4697 is higher than that of the plate 464 under normal conditions.

[0033] Specifically, when a dent appears on the precision sheet metal part 5, the pressure ring 4692 will press the marking ring 4699 down, causing the liquid storage tank 4695 to follow the marking ring 4699 down, marking the dent, which makes it easier to detect the protrusions and dents on the inside of the precision sheet metal part 5.

[0034] In this embodiment, two sets of third rotating blocks 4610 are fixedly connected to the upper end of the slide bar 4691, and a connecting rod 4611 is rotatably connected between the two sets of third rotating blocks 4610. A rotating groove 4612 is opened at the upper end of the liquid storage tank 4695, and the lower end of the connecting rod 4611 is rotatably connected to the inner side of the rotating groove 4612.

[0035] Specifically, when a protrusion appears on the precision sheet metal part 5, the ball 4693 will continue to push the slide bar 4691 upward. At this time, one end of the connecting rod 4611 will shift upward, causing one end of the connecting rod 4611 to shift downward, causing the liquid storage tank 4695 to move downward, thereby marking the protrusion point with the marking ring 4699.

[0036] In use, the first drive motor 33 is started to drive the rotating rod 32 to rotate on the slider 31, thereby using the first rotating ring 34 to drive the support rod 35 to rotate, and thus adjusting the angle of the first mounting plate 36 so that the roller 37 can be pressed against the outer surface of the precision sheet metal part 5. The second drive motor 38 is started to drive the roller 37 to rotate, so that the roller 37 can move the precision sheet metal part 5. The cylinder 42 is started to push the pressure shaft 43 down, so that the roller 44 is pressed against the precision sheet metal part 5. At this time, the mounting rod 451 will follow the pressure shaft 43 to move down, so that the cleaning roller 456 is pressed against the inner walls of the precision sheet metal part 5. At the same time, the second mounting plate 454 will drive the first rotating block 453 to rotate on the plate. The inner side of 452 rotates, causing the cleaning roller 456 to adhere tightly to the inner wall of the precision sheet metal part 5. At this time, the first scraper 457 will also adhere to the inner wall of the precision sheet metal part 5 along with the second mounting plate 454. Simultaneously, the second scraper 4585 and the third scraper 4586 will fold inward under the action of the inner wall of the precision sheet metal part 5, so that the second scraper 4585 and the third scraper 4586 adhere tightly to the inner corner of the precision sheet metal part 5. At the same time, the sliding shaft 4584 will slide towards the inner side of the sliding cylinder 4583, and the sliding cylinder 4583 will drive the outer ring 4582 to rotate outside the rotating column 4581. At this time, the movement of the precision sheet metal part 5 will drive the cleaning roller 456 to rotate and move against the precision sheet metal part. The metal part 5 is cleaned, and the first scraper 457 scrapes the inner side of the precision sheet metal part 5. Activating the electric push rod 463 adjusts the angle of the mounting plate 464, ensuring it adheres tightly to the precision sheet metal part 5. The U-shaped plate 465 facilitates this adhesion. Two sets of angle sensors 466 detect the tilt angle of the two sides of the precision sheet metal part 5. The fixing rod 467 moves with the mounting plate 464, causing the third mounting plate 468 to move, thus pressing the ball 4693 against the inner side of the precision sheet metal part 5. At this point, the sliding rod 4691 slides upwards, and the second spring 4696 moves the retaining ring 4697, allowing the storage... The liquid tank 4695 moves upward, making the marking ring 4699 slightly higher than the inner wall of the precision sheet metal part 5. When a bulge appears on the precision sheet metal part 5, the ball 4693 will continue to push the slide rod 4691 upward. At this time, one end of the connecting rod 4611 will shift upward, causing one end of the connecting rod 4611 to shift downward, causing the liquid tank 4695 to move downward, thereby marking the bulge point with the marking ring 4699. When a depression appears on the precision sheet metal part 5, the first spring 4694 will push the pressure ring 4692 downward, thereby causing the pressure ring 4692 to press the marking ring 4699 downward, marking the depression point. At this time, the liquid tank 4695 will slide on the third mounting plate 468.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precision sheet metal parts inspection device, comprising a support frame (1), characterized in that, The upper end of the support frame (1) is fixedly connected to two sets of straight plates (2). The upper ends of the two sets of straight plates (2) are jointly provided with a drive assembly (3). The upper end of the drive assembly (3) is provided with a precision sheet metal part (5). The upper end of the drive assembly (3) is provided with a measuring assembly (4). The drive assembly (3) includes two sets of sliders (31) that slide on the straight plates (2). A rotating rod (32) is rotatably connected between the two sets of sliders (31). Several sets of first rotating rings (34) are fixedly connected to the outer side of the rotating rod (32). A support rod (35) is fixedly connected to the outer side of the first rotating ring (34). The upper end of the support rod (35) is... A first mounting plate (36) is fixedly connected, and a roller (37) is rotatably connected to the upper end of the first mounting plate (36). The measuring component (4) includes a mounting frame (41) fixedly connected to the support frame (1). A cylinder (42) is fixedly connected to the front end of the mounting frame (41). A pressure shaft (43) is fixedly connected to the output shaft of the cylinder (42). A first cleaning component (45) for cleaning the inner side of the precision sheet metal part (5) and a measuring device (46) for measuring the inner angle of the precision sheet metal part (5) are provided on the outer side of the pressure shaft (43). A roller (44) is rotatably connected to the lower end of the pressure shaft (43).

2. The precision sheet metal parts inspection device according to claim 1, characterized in that: Two sets of first drive motors (33) are fixedly installed on one side of the support frame (1). The output shafts of the two sets of first drive motors (33) are fixedly connected to two sets of rotating rods (32) respectively. A second drive motor (38) is fixedly installed at one end of the two sets of first mounting plates (36) near the sides of the first mounting plate (36). The output shaft of the second drive motor (38) is fixedly connected to the roller (37).

3. The precision sheet metal parts inspection device according to claim 1, characterized in that: The first cleaning component (45) includes a mounting rod (451) fixedly connected to the pressure shaft (43). Two sets of rotating plates (452) are fixedly connected to both ends of the mounting rod (451). A first rotating block (453) is rotatably connected between the two sets of rotating plates (452). A second mounting plate (454) is fixedly connected to the lower end of the first rotating block (453). An mounting piece (455) is fixedly connected to the lower end of the second mounting plate (454). A cleaning roller (456) is rotatably connected to one end of the mounting piece (455). A first scraper (457) is provided on one side of the second mounting plate (454). A second cleaning component (458) is provided at the other end of the second mounting plate (454).

4. The precision sheet metal parts inspection device according to claim 3, characterized in that: The upper end of the second mounting plate (454) is fixedly connected to several sets of fixing blocks (459). The inner sides of the several sets of fixing blocks (459) are rotatably connected to a rotating shaft (4510). A connecting plate (4511) is rotatably connected between two adjacent sets of fixing blocks (459). A torsion spring (4512) is provided on the outer side of the rotating shaft (4510). One end of the torsion spring (4512) is fixedly connected to the fixing block (459), and the other end of the torsion spring (4512) is fixedly connected to the connecting plate (4511). The connecting plate (4511) is fixedly connected to the first scraper (457).

5. The precision sheet metal parts inspection device according to claim 3, characterized in that: The second cleaning component (458) includes a rotating column (4581) fixedly connected to the second mounting plate (454). An outer ring (4582) is rotatably connected to the outer side of the rotating column (4581). A slide cylinder (4583) is fixedly connected to the outer side of the outer ring (4582). A slide shaft (4584) is slidably connected to the inner side of the slide cylinder (4583). A second scraper (4585) and a third scraper (4586) are fixedly connected to the lower ends of the two sets of slide shafts (4584), respectively. A second rotating block (4587) is fixedly connected to the rear end of the third scraper (4586). The second rotating block (4587) is rotatably connected to the second scraper (4585).

6. The precision sheet metal parts inspection device according to claim 1, characterized in that: The measuring device (46) includes a connecting column (461) fixedly connected to the pressure shaft (43). One end of the connecting column (461) is fixedly connected to a mounting column (462). Both ends of the mounting column (462) are fixedly connected to two sets of electric actuators (463). The lower ends of the two sets of electric actuators (463) are rotatably connected to a plate (464). The upper end of the plate (464) is fixedly connected to two sets of U-shaped plates (465). The lower end of the electric actuator (463) is rotatably connected to the inner side of the U-shaped plate (465). The upper end of the plate (464) is fixedly connected to an angle sensor (466).

7. The precision sheet metal inspection device according to claim 6, characterized in that: Two sets of fixing rods (467) are fixedly connected to one side of the mounting plate (464). The fixing rods (467) are L-shaped. A third mounting plate (468) is fixedly connected to one side of both sets of fixing rods (467). Several sets of marking components (469) are provided at the lower end of the third mounting plate (468). The marking components (469) include a slide rod (4691) slidably connected to the third mounting plate (468) and a liquid storage tank (4695). The upper end of the slide rod (4691) is inclined toward one side of the liquid storage tank (4695). A pressure ring (4692) is fixedly connected to the outside of the storage tank (4695), and a connecting pipe (4698) is fixedly connected to the outside of the storage tank (4695). A marking ring (4699) is fixedly connected to one end of the connecting pipe (4698). The storage tank (4695), the connecting pipe (4698), and the marking ring (4699) are interconnected. The marking ring (4699) is sleeved on the outside of the slide rod (4691), and the marking ring (4699) is located at the lower end of the pressure ring (4692). A ball (4693) is rotatably connected to the lower end of the slide rod (4691).

8. The precision sheet metal parts inspection device according to claim 7, characterized in that: A first spring (4694) is provided on the outside of the slide bar (4691), and a second spring (4696) is sleeved on the outside of the liquid storage tank (4695). A retaining ring (4697) is fixedly connected to the outside of the liquid storage tank (4695). The lower end of the second spring (4696) is fixedly connected to the retaining ring (4697). The elastic force of the first spring (4694) is greater than that of the retaining ring (4697). Under normal conditions, the bottom end of the ball (4693) of the retaining ring (4697) is higher than that of the plate (464).

9. A precision sheet metal parts inspection device according to claim 7, characterized in that: The upper end of the slide bar (4691) is fixedly connected to two sets of third rotating blocks (4610), and a connecting rod (4611) is rotatably connected between the two sets of third rotating blocks (4610). The upper end of the liquid storage tank (4695) is provided with a rotating groove (4612), and the lower end of the connecting rod (4611) is rotatably connected to the inner side of the rotating groove (4612).

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