Gear box body detection equipment and method

Abstract

The invention relates to the technical field of motor gearbox production, in particular to gearbox body detection equipment, which comprises a workbench, a detection disc is arranged on the workbench, the detection disc is rotatably connected with the workbench, a plurality of detection seats are fixedly arranged on the detection disc, the detection seats are arranged at equal intervals along the circumferential direction of the detection disc, and the detection seats are used for placing workpieces; a CDC vision assembly, a distance measuring assembly and a discharging assembly are sequentially arranged on the workbench around the detection disc, the CDC vision assembly is used for obtaining the contour of a workpiece and judging the assembling and filling of a sealing ring, the distance measuring assembly is used for measuring the length and width datum plane size and the height size of the workpiece, and the discharging assembly is used for clamping out the workpiece. When rotating, the detection disc can be aligned with the CDC vision assembly, the distance measuring assembly and the discharging assembly in sequence. After the workpieces are placed, continuous detection of the workpieces can be achieved only by rotating the detection disc, the detection efficiency is improved, the workpieces can be clamped out through the discharging assembly, operation after detection is completed conveniently, the detection efficiency is improved, and the smoothness of whole-line production is improved.

Description

Technical Field

[0001] This invention relates to the field of motor gearbox manufacturing technology, and in particular to a gearbox body testing device. Background Technology

[0002] As a core component of the electric vehicle transmission system, the manufacturing precision and sealing performance of the gearbox of the new energy motor directly affect the reliability and lifespan of the entire machine. Therefore, the gearbox usually needs to be inspected after production. There are two common inspection methods: one is to use manual visual inspection with simple fixtures, which has the advantage of low cost; the other is to use independent testing stations arranged in series, which has the advantage of high precision in specialized testing.

[0003] However, the two existing detection solutions either have low detection efficiency or large detection area and difficulty in matching detection cycle time, both of which will affect the overall production line. Summary of the Invention

[0004] To address the problem of low inspection efficiency in gearbox inspection under existing technologies, which affects production efficiency, this application provides a gearbox inspection device, the specific solution of which is as follows.

[0005] A gearbox housing inspection device includes a worktable, an inspection plate is provided on the worktable, the inspection plate is rotatably connected to the worktable, and a plurality of inspection seats are fixedly provided on the inspection plate. The inspection seats are equidistantly spaced along the circumference of the inspection plate and are used to place workpieces. The worktable is surrounded by a detection disk and is equipped with a CDC vision component, a ranging component, and a discharging component. The CDC vision component is used to acquire the outline of the workpiece and determine the assembly and filling of the sealing ring. The ranging component is used to measure the length, width, and height of the workpiece reference surface. The discharging component is used to clamp the workpiece. When the detection disk rotates, it can be aligned with the CDC vision component, the ranging component, and the discharging component in sequence.

[0006] By adopting the above technical solution, the detection disc is rotatable and has detection seats with equal intervals for placing workpieces. The continuous detection of workpieces can be achieved simply by rotating the detection disc, which improves detection efficiency. The discharge component can clamp out the workpieces, which facilitates the operation after detection, improves detection efficiency, and enhances the smoothness of the entire production line.

[0007] Optionally, a marking component is provided between the discharge component and the ranging component, and the marking component is used to mark qualified products.

[0008] By adopting the above technical solution, after the gearbox completes the distance measurement and detection, the marking component can mark the qualified products, making it easier to distinguish between qualified and unqualified products and improving production management efficiency.

[0009] Optionally, a gas flow detection component is provided between the ranging component and the marking component, the gas flow detection component being used to detect the air flow rate when blowing air toward the workpiece.

[0010] By adopting the above technical solutions, the gas flow detection component can blow air onto the workpiece and detect the airflow, thereby detecting the airtightness of the workpiece, further improving the comprehensiveness and accuracy of gearbox inspection, and ensuring product quality.

[0011] Optionally, the CDC vision component includes a first inspection frame and a CDC vision module. The first inspection frame is fixedly connected to the worktable. The CDC vision module, a camera, and an illumination aperture are fixedly mounted on the first inspection frame. The camera is used to acquire the workpiece contour and transmit it to the CDC vision module. The camera is electrically connected to the CDC vision module, and the illumination aperture is located below the camera.

[0012] By adopting the above technical solution, the camera can effectively acquire workpiece data with the assistance of the illumination aperture, and compare it with the CDC vision module. When the comparison result meets the requirements, the workpiece is a qualified product; when the comparison result does not meet the requirements, the workpiece is marked as a defective product, which can more accurately determine whether the workpiece is qualified.

[0013] Optionally, the ranging component includes a second detection frame and a third detection frame, both of which are equipped with laser rangefinders. The laser rangefinder on the second detection frame is used to detect the length and width reference dimensions of the workpiece, while the laser rangefinder on the third detection frame is used to detect the height dimension of the workpiece.

[0014] By adopting the above technical solutions, the laser rangefinders on the second and third inspection frames can successively inspect the length and width reference plane dimensions and the height dimension of the workpiece, which can further improve the accuracy and efficiency of the inspection.

[0015] Optionally, both the second and third inspection frames are equipped with a drive cylinder and an inspection rod. The drive cylinder can drive the inspection rod to move in the vertical direction, and the inspection rod can extend into the workpiece to inspect the aperture.

[0016] By adopting the above technical solution, since gearboxes usually require holes to fit other components, the inner diameter of the holes in the workpiece can be effectively detected by inserting a detection rod into the workpiece, thus further improving the comprehensiveness and accuracy of the detection.

[0017] Optionally, the gas flow detection component includes a fourth detection frame and a sealing cylinder. The fourth detection frame is equipped with a moving cylinder and a moving block. The moving cylinder can drive the moving block to move vertically. The moving block has a mating groove that can cooperate with the workpiece to form a sealed space. A blower and a gas flow sensor are installed in the mating groove. The blower is aligned with the air inlet of the workpiece, and the gas flow sensor is aligned with the air outlet of the workpiece. The blower is used to blow compressed air through the workpiece, and the gas flow sensor is used to detect the gas flow. The sealing cylinder is equipped with a sealing rod that can push the sealing rod toward the workpiece. The sealing rod can seal any holes in the workpiece that are not used for air inlet or outlet.

[0018] By adopting the above technical solution, since the gearbox body has a breather, which is a key accessory on the gearbox oil tank, it is mainly used to balance the air pressure difference between the inside and outside of the gearbox, and at the same time filter the incoming air to prevent contaminants and moisture from entering the lubrication system. Therefore, the airtightness requirement of the breather is relatively high. Since there are also some holes on the gearbox body that need to be installed with bolts and other functions, these holes are first sealed with a sealing rod, and then a relatively sealed space is formed by a moving block. At this time, air is blown in, which can further improve the effect of airtightness detection and improve the accuracy of detection.

[0019] Optionally, the marking assembly includes a fifth inspection frame, on which a marking machine is mounted, the marking machine being used to mark the workpiece.

[0020] By adopting the above technical solution, when qualified products enter the fifth inspection rack, the marking machine on the fifth inspection rack can mark the workpiece to determine whether the workpiece is qualified, which makes the subsequent management of the workpiece more convenient.

[0021] Optionally, the discharge assembly includes a discharge frame and a discharge hopper, both of which are fixedly connected to the worktable. The discharge frame is positioned between the discharge hopper and the inspection plate. A linear mechanism is provided on the discharge frame, and a discharge gripper is slidably mounted on the linear mechanism. The discharge gripper is used to hold the workpiece. The first inspection frame, second inspection frame, third inspection frame, fourth inspection frame, fifth inspection frame, and discharge frame are equidistantly spaced.

[0022] By adopting the above technical solution, setting up a discharge rack and discharge hopper, the movable discharge jaws on the linear mechanism can clamp the qualified workpieces that have completed all steps, and send the workpieces to the discharge hopper to complete the discharge and complete the entire inspection chain.

[0023] A method for inspecting gearbox housings, comprising the inspection equipment described in claim 1, and employing the following method: A. Send the workpiece into the detection seat of the detection tray. The workpiece is inspected at the first detection frame. If it does not meet the requirements, it is a defective product. After the inspection is completed, take it out. If it is qualified, rotate the detection tray. B. The workpiece enters the second and third inspection racks and the length, width and height reference plane dimensions are inspected. If they do not meet the requirements, they are unqualified products. After the inspection is completed, the workpiece is taken out. If it is qualified, the inspection plate is rotated. C. The airtightness of the breather is tested when the workpiece enters the fourth inspection rack. If it does not meet the requirements, it is a defective product. After the test is completed, it is taken out. If it passes the test, the inspection plate is rotated. D. The workpiece enters the fifth inspection rack. After the inspection in steps AC is completed, the workpiece is qualified. The marking component marks the workpiece. After completion, the inspection plate is rotated. E. When the workpiece enters the discharge rack, the discharge jaws hold the workpiece and move it to the discharge hopper.

[0024] By adopting the above technical solutions, the entire testing process is automated, integrating all testing steps, thereby enabling the complete testing of products within a smaller footprint, reducing space requirements while improving testing efficiency.

[0025] In summary, this application has at least the following beneficial effects: This application solves the problem of low inspection efficiency in the prior art when inspecting gearboxes, which affects production efficiency. By integrating and setting up the inspection equipment and performing highly automated inspection of the products, this application not only improves inspection efficiency but also reduces the inspection footprint, enabling the inspection cycle to be matched and synchronized, thereby improving the overall production efficiency of the products. Attached Figure Description

[0026] Figure 1 This is a top view of Embodiment 1.

[0027] Figure 2 This is a perspective view of Example 1.

[0028] Figure 3 This is a perspective view of Example 1.

[0029] Figure 4 This is a cross-sectional view of the gas flow detection component in Embodiment 1.

[0030] Figure 5 This is a cross-sectional view of the gas flow detection component in Embodiment 2.

[0031] Explanation of reference numerals in the attached figures: 1. Workbench; 2. Detection tray; 21. Detection socket; 3. CDC vision components; 31. First inspection frame; 32. CDC vision module; 33. Camera; 34. Illumination aperture; 4. Distance measuring component; 41. Second detection frame; 42. Third detection frame; 43. Laser rangefinder; 44. Drive cylinder; 45. Detection rod; 5. Gas flow detection assembly; 51. Fourth detection frame; 52. Sealing cylinder; 521. Sealing rod; 53. Moving cylinder; 54. Moving block; 541. Matching groove; 542. Air blower; 543. Gas flow sensor; 544. Adsorption channel; 6. Marking assembly; 61. Fifth inspection frame; 62. Marking machine; 7. Discharge assembly; 71. Discharge rack; 711. Linear mechanism; 712. Discharge gripper; 72. Discharge hopper; Detailed Implementation

[0032] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. Example

[0033] A gearbox housing inspection device, such as Figure 1 and Figure 2 As shown, the device includes a worktable 1, on which a detection disk 2 is mounted. The detection disk 2 is rotatably connected to the worktable 1. Multiple detection seats 21 are fixedly mounted on the detection disk 2, and these seats are equidistantly spaced along the circumference of the detection disk 2. The detection seats 21 are used to place workpieces. In a specific implementation, a corresponding motor is mounted at the bottom of the detection disk 2 to drive it. The driving method can be a direct drive via the motor shaft, or a connection via a transmission mechanism, such as a gear and rack system.

[0034] like Figure 1 and Figure 2 As shown, a CDC vision component 3, a ranging component 4, and a discharge component 7 are sequentially arranged around the inspection disk 2 on the worktable 1. The CDC vision component 3 is used to acquire the workpiece contour and determine the assembly and filling of the sealing ring. The ranging component 4 is used to measure the length, width, and height dimensions of the workpiece reference surface. The discharge component 7 is used to clamp the workpiece. When the inspection disk 2 rotates, it can sequentially align with the CDC vision component 3, the ranging component 4, and the discharge component 7. A marking component 6 is arranged between the discharge component 7 and the ranging component 4. The marking component 6 is used to mark qualified products. A gas flow detection component 5 is arranged between the ranging component 4 and the marking component 6. The gas flow detection component 5 is used to blow air towards the workpiece to detect the airflow. In specific implementation, the inspection disk 2 can be driven by a stepper motor or other means that allows it to move in a stepping motion, enabling the inspection disk 2 to more accurately align with each component for inspection. The inspection seats 21 on the inspection disk 2 can be set according to the number of components, so that each inspection seat 21 can be inspected during stepping movement. When a qualified product is detected...

[0035] like Figure 1 and Figure 2As shown, the CDC vision component 3 includes a first inspection frame 31 and a CDC vision module 32. The first inspection frame 31 is fixedly connected to the worktable 1. The CDC vision module 32, a camera 33 and an illumination aperture 34 are fixedly mounted on the first inspection frame 31. The camera 33 is used to acquire the workpiece contour and transmit it to the CDC vision module 32. The camera 33 is electrically connected to the CDC vision module 32. The illumination aperture 34 is located below the camera 33. In specific implementation, the middle part of the inspection plate 2 is hollow. This part will not rotate so that the components can be installed more compactly. The first inspection frame 31 is installed at this position on the workbench 1. The top of the first inspection frame 31 protrudes towards the inspection plate 2. The camera 33 is located on the upper side of the inspection plate 2. The camera 33 can be aimed at both sides of the inspection seat 21 and simultaneously obtain the contour information of the workpiece from both sides. The illumination ring 34 can be fixedly connected to the camera 33 or suspended and fixed by various means such as wires. Both can play an illumination role and assist the camera 33 in obtaining data. After the camera 33 obtains the image, it is transmitted to the CDC vision module 32. The working principle of the CDC vision module 32 is to convert the image into data and compare it with the set qualified product data. By comparing the image data with the set qualified product data, the contour can be compared to determine whether the workpiece is qualified. Then the contour detection of the workpiece can be completed.

[0036] like Figure 1 and Figure 2 As shown, the ranging component 4 includes a second detection frame 41 and a third detection frame 42. Both the second and third detection frames 41 and 42 are equipped with laser rangefinders 43. The laser rangefinder 43 on the second detection frame 41 is used to detect the length and width reference dimensions of the workpiece, while the laser rangefinder 43 on the third detection frame 42 is used to detect the height dimension of the workpiece. In specific implementation, the laser rangefinder 43 is located at the bottom of the second and third detection frames 41 and 42. The laser rangefinder 43 uses a ranging method that scatters multiple laser beams towards the workpiece. Based on the reflected light, the size of the obstructed workpiece can be determined. Measurement is completed by scattering corresponding scattered light beams from both the length, width, and height dimensions.

[0037] like Figure 1 and Figure 2As shown, both the second detection frame 41 and the third detection frame 42 are equipped with a drive cylinder 44 and a detection rod 45. The drive cylinder 44 can drive the detection rod 45 to move vertically, allowing the detection rod 45 to extend into the workpiece to detect the hole diameter. In specific implementations, since the workpiece needs to be assembled with other components, it usually has holes. The size of the detection rod 45 corresponds precisely to the hole to be detected. When the detection seat 21 corresponds to the detection rod 45, the detection rod 45 can extend downward into the hole. When the hole of the workpiece is accurate, the detection rod 45 can extend normally into the hole. If the workpiece size is incorrect, it cannot extend. Since an excessively large size does not affect the assembly, this step only detects cases where the hole is too small. In other embodiments, a pressure sensor can also be installed on the detection rod 45. When the pressure sensor is pressed, it will directly emit a signal, which can more clearly determine whether there is interference and more accurately determine whether the hole size of the workpiece is correct.

[0038] like Figure 3 and Figure 4 As shown, the gas flow detection component 5 includes a fourth detection frame 51 and a sealing cylinder 52. The fourth detection frame 51 is equipped with a moving cylinder 53 and a moving block 54. The moving cylinder 53 can drive the moving block 54 to move in the vertical direction. The moving block 54 is provided with a mating groove 541, which can cooperate with the workpiece to form a sealed space. A blower 542 and a gas flow sensor 543 are provided in the mating groove 541. The blower 542 is aligned with the air inlet of the workpiece, and the gas flow sensor 543 is aligned with the air outlet of the workpiece. The blower 542 is used to blow compressed air through the workpiece, and the gas flow sensor 543 is used to detect the gas flow. The sealing cylinder 52 is equipped with a sealing rod 521, which can push the sealing rod 521 toward the workpiece. The sealing rod 521 can block the holes in the workpiece that are not used for air inlet and outlet. In practical implementation, the gearbox is usually equipped with a breather, which is usually an air inlet at one end and an air outlet at the other. In this embodiment, the breather is plate-shaped, with the air inlet and outlet on the same plane. Therefore, the breather plate is covered by the moving block 54, and the blower 542 and the gas flow sensor 543 are aligned and completely blocked at the air inlet and outlet respectively. The air tightness can be detected by blowing in air and detecting the amount of air output. Since the breather plate has a certain connection with the inside of the gearbox, some holes that are not useful during the test need to be blocked by the sealing rod 521. The sealing cylinder 52 is set on both sides of the workpiece, with one sealing cylinder 52 set at the position of the first side frame. The blower 542 is a device that can compress air and discharge it. The principle is the same as that of a blower, and a small model commonly available on the market can be used.

[0039] like Figure 1 and Figure 3As shown, the marking assembly 6 includes a fifth inspection frame 61, on which a marking machine 62 is mounted. The marking machine 62 is used to mark workpieces. In this embodiment, the marking machine 62 is a laser marking machine 62, which uses a laser to engrave marks on qualified products. The laser marking machine 62 is electrically connected to all previous components, and only workpieces that pass all inspections will be marked.

[0040] like Figure 1 As shown, the discharge assembly 7 includes a discharge rack 71 and a discharge hopper 72, both of which are fixedly connected to the workbench 1. The discharge rack 71 is positioned between the discharge hopper 72 and the inspection plate 2. A linear mechanism 711 is installed on the discharge rack 71, and a discharge gripper 712 is slidably mounted on the linear mechanism 711. The discharge gripper 712 is used to clamp the workpiece. The first inspection rack 31, the second inspection rack 41, the third inspection rack 42, the fourth inspection rack 51, the fifth inspection rack 61, and the discharge rack 71 are equidistantly spaced. In specific implementation, the discharge gripper 712 can move along both horizontal and vertical axes. The clamping method is a common two-sided clamping. The discharge gripper 712 is also electrically connected to the previous assembly. Only workpieces that pass all steps will be discharged through the discharge hopper 72. A trough for discharging defective products is also provided between the discharge hopper 72 and the inspection plate 2. Defective products can be discharged through this trough.

[0041] This embodiment also provides a gearbox housing inspection method, including the above-mentioned inspection equipment, and employing the following method: A. Send the workpiece onto the detection seat 21 of the detection plate 2. The workpiece is inspected at the first detection frame 31. If it does not meet the requirements, it is a defective product. After the inspection is completed, take it out. If it is qualified, rotate the detection plate 2. B. The workpiece enters the second inspection rack 41 and the third inspection rack 42 to inspect the length, width and height reference plane dimensions. If they do not meet the requirements, they are unqualified products. After the inspection is completed, the workpiece is taken out. If it is qualified, the inspection plate 2 is rotated. C. The workpiece enters the fourth inspection rack 51 to test the air tightness of the breather. If it does not meet the requirements, it is a defective product. After the test is completed, it is taken out. If it passes, the inspection plate 2 is rotated. D. The workpiece enters the fifth inspection rack 61. After the inspection in steps AC is completed, the workpiece is qualified. The marking component 6 marks the workpiece. After completion, the inspection disk 2 is rotated. E. The workpiece enters the discharge rack 71, and the discharge gripper 712 clamps the workpiece to the discharge hopper 72. Working principle: Integrated inspection of workpieces allows for centralized detection of multiple data points, improving inspection efficiency and reducing the footprint of the inspection area. The inspection cycle can be automatically matched, further improving overall production efficiency. Example

[0042] The main difference between Embodiment 2 and Embodiment 1 is that in Embodiment 2, the moving block 54 is further equipped with an adsorption channel 544 corresponding to the workpiece. The adsorption channel 544 fits snugly against the edge of the breather plate. The adsorption channel 544 is connected to the air blower 542, and a portion of the compressed air from the air blower 542 is drawn into the adsorption channel 544. In practice, the channel between the adsorption channel 544 and the air blower 542 is always open. The connection between the air blower 542 and the outside world is closed via valves to control the amount of purge air for flow detection. During gas flow detection, the air blower 542 can draw air from the adsorption channel 544, forming a tighter connection at the breather plate, resulting in adsorption and improved airtightness. Simultaneously, in case of leakage, the gas can be drawn back from that location, preventing leaked gas from affecting normal detection. In other embodiments, an elastic rubber membrane can be placed next to the adsorption channel 544 for more effective protection, further improving the airtightness protection.

[0043] Working principle: The basic working principle is the same as in Example 1, but an adsorption channel 544 is added. This channel can simultaneously adsorb the breathable sheet for air tightness detection, which further improves the stability and air tightness after adsorption. At the same time, it can draw back the leaked gas and recompress it, which further improves the accuracy of detection.

[0044] The above are preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A gearbox case inspection apparatus, characterized by: Including workbench (1), be provided with detection disc (2) on the workbench (1), detection disc (2) is rotatably connected with workbench (1), a plurality of detection seats (21) are fixedly provided on detection disc (2), detection seat (21) is arranged at equidistance along the circumference of detection disc (2), and detection seat (21) is used to place workpiece; The workbench (1) is sequentially provided with CDC vision assembly (3), distance measuring assembly (4), discharge assembly (7) around detection disc (2), CDC vision assembly (3) is used to obtain workpiece profile and judge sealing ring assembly filling, distance measuring assembly (4) is used to measure workpiece length-width reference surface size and height size, and discharge assembly (7) is used to clamp workpiece, and detection disc (2) can be sequentially aligned with CDC vision assembly (3), distance measuring assembly (4) and discharge assembly (7) when rotating.

2. A gearbox detection apparatus according to claim 1, characterised in that: The discharge assembly (7) and the distance measuring assembly (4) are provided with a marking assembly (6), and the marking assembly (6) is used for marking qualified products.

3. A gearbox detection apparatus according to claim 2, characterised in that: The distance measuring assembly (4) and the marking assembly (6) are provided with a gas flow detection assembly (5), and the gas flow detection assembly (5) is used for blowing gas towards the workpiece to detect the ventilation amount.

4. A gearbox detection apparatus according to claim 3, wherein: The CDC vision assembly (3) includes a first detection frame (31) and a CDC vision module (32), the first detection frame (31) is fixedly connected with the workbench (1), the first detection frame (31) is fixedly provided with a CDC vision module (32), a camera (33) and an illumination aperture (34), the camera (33) is used to obtain workpiece profile and transmit to CDC vision module (32), the camera (33) is electrically connected with the CDC vision module (32), and the illumination aperture (34) is arranged on the lower side of the camera (33).

5. A gearbox inspection apparatus according to claim 4, characterised in that: The distance measuring assembly (4) includes a second detection frame (41) and a third detection frame (42), the second detection frame (41) and the third detection frame (42) are provided with laser range finders (43), the laser range finder (43) on the second detection frame (41) is used to detect the length-width reference surface size of the workpiece, and the laser range finder (43) on the third detection frame (42) is used to detect the size in the height direction of the workpiece.

6. A gearbox detection apparatus according to claim 5, wherein: The second detection frame (41) and the third detection frame (42) are provided with a driving cylinder (44) and a detection rod (45), the driving cylinder (44) can drive the detection rod (45) to move in the vertical direction, and the detection rod (45) can extend into the workpiece to detect the aperture.

7. A gearbox detection apparatus according to claim 7, characterised in that: The gas flow detection assembly (5) comprises a fourth detection frame (51) and a sealing cylinder (52), the fourth detection frame (51) is provided with a moving cylinder (53) and a moving block (54), the moving cylinder (53) can drive the moving block (54) to move in the vertical direction, the moving block (54) is provided with a matching groove (541), the matching groove (541) can form a sealed space with the workpiece, the matching groove (541) is provided with a gas blower (542) and a gas flow sensor (543), the gas blower (542) is aligned with the air inlet of the workpiece, and the gas flow sensor (543) is aligned with the air outlet of the workpiece, the gas blower (542) is used for compressed air blowing of the workpiece, and the gas flow sensor (543) is used for detecting the gas flow, the sealing cylinder (52) is provided with a sealing rod (521), the sealing cylinder (52) can drive the sealing rod (521) to move towards the workpiece, and the sealing rod (521) can block the holes of the workpiece which are not used for air inlet and air outlet.

8. A gearbox detection apparatus according to claim 7, characterised in that: The marking assembly (6) comprises a fifth detection frame (61), and the fifth detection frame (61) is provided with a marking machine (62), and the marking machine (62) is used for marking the workpiece.

9. A gearbox detection apparatus according to claim 8, characterised in that: The discharging assembly (7) comprises a discharging frame (71) and a discharging hopper (72), the discharging frame (71) and the discharging hopper (72) are fixedly connected to the workbench (1), the discharging frame (71) is arranged between the discharging hopper (72) and the detection disc (2), the discharging frame (71) is provided with a linear mechanism (711), the linear mechanism (711) is slidably provided with a discharging clamp jaw (712), the discharging clamp jaw (712) is used for clamping the workpiece, and the first detection frame (31), the second detection frame (41), the third detection frame (42), the fourth detection frame (51), the fifth detection frame (61) and the discharging frame (71) are equidistantly arranged.

10. A gear box detection method, comprising the detection device in claim 9, and adopting the following method: A. the workpiece is sent to the detection seat (21) of the detection disc (2), the workpiece is detected at the first detection frame (31), if it does not meet the requirements, it is unqualified product, and is taken out after detection, and if it is qualified, the detection disc (2) is rotated; B. the workpiece enters the second detection frame (41) and the third detection frame (42), and the length-width reference surface size and the height size are detected, if it does not meet the requirements, it is unqualified product, and is taken out after detection, and if it is qualified, the detection disc (2) is rotated; C. the workpiece enters the fourth detection frame (51), and the air tightness of the breathing piece is detected, if it does not meet the requirements, it is unqualified product, and is taken out after detection, and if it is qualified, the detection disc (2) is rotated; D. the workpiece enters the fifth detection frame (61), the workpiece is qualified after the detection in steps A-C, the marking assembly (6) marks the workpiece, and the detection disc (2) is rotated after completion; E. the workpiece enters the discharging frame (71), and the discharging clamp jaw (712) clamps the workpiece to the discharging hopper (72).

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