A visual inspection apparatus for precision machinery
By using a rotating turntable and camera design, combined with a feeding assembly and a dust removal mechanism, the problems of limited angle and small spacing between adjacent parts in the inspection of precision mechanical parts are solved, achieving all-round accurate inspection and efficient mass production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHEJIANG YIWEI PRECISION TECH CO LTD
- Filing Date
- 2023-05-23
- Publication Date
- 2026-06-26
AI Technical Summary
When inspecting precision mechanical parts, existing visual inspection equipment cannot fully judge the surface quality and geometric dimensions of the parts due to the fixed cameras set at multiple angles. Furthermore, the small spacing between adjacent parts during batch inspection can lead to incorrect judgments.
The system employs a rotating connection between the first and second turntables, combined with a support ring and camera design. The rotating ring and gear meshing enable the camera to capture images from all directions. In conjunction with the feeding assembly and the blowing dust removal mechanism, it ensures that each part is inspected individually and improves the accuracy of the images.
It enables comprehensive and accurate inspection of precision mechanical parts, avoiding erroneous judgments caused by excessively small spacing between adjacent parts, and improving the accuracy and reliability of the inspection.
Smart Images

Figure CN116482029B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of visual inspection equipment technology, and more specifically to a visual inspection device for precision machinery. Background Technology
[0002] For the inspection of mechanical parts, the commonly used equipment is vision inspection equipment. The camera installed on the equipment takes pictures of the mechanical parts placed within the field of view, and then the built-in computer of the equipment analyzes and processes the images to ultimately achieve the purpose of inspecting and measuring the parts.
[0003] Existing visual inspection equipment typically involves installing multiple cameras facing different directions within the device. This allows for multi-angle photography and analysis of mechanical parts placed on the inspection table, enabling the inspection and measurement of the parts and determining their compliance. This process can improve the quality of mechanical parts during production and reduce their defect rate.
[0004] While existing visual inspection equipment can indeed inspect and measure parts, when inspecting precision mechanical parts, the limited shooting angles of multi-angle fixed cameras make it difficult to accurately judge their surface quality and geometric dimensions. Furthermore, in the process of batch inspection of parts, existing visual inspection equipment often transports and inspects parts via conveyor belts. During the inspection process, the small distance between two adjacent parts may affect the camera's shooting results, leading to incorrect judgments by the visual inspection equipment and affecting the accurate inspection of precision parts. Summary of the Invention
[0005] The purpose of this invention is to provide a vision inspection device for precision machinery, and to solve the following technical problems:
[0006] How to photograph precision mechanical parts to accurately determine whether their quality is up to standard;
[0007] How to avoid visual inspection errors that may occur during batch inspection of parts due to the small spacing between adjacent parts.
[0008] The objective of this invention can be achieved through the following technical solutions:
[0009] A visual inspection device for precision machinery, including an inspection chamber;
[0010] A first turntable is rotatably connected to the detection chamber, and a plurality of fixed seats are fixedly connected to the first turntable, and a support ring is fixedly connected to the fixed seat;
[0011] A second turntable is rotatably connected to the fixed base, and a camera facing the second turntable is provided on the support ring for taking pictures of the mechanical parts on the second turntable;
[0012] A feed pipe connected to the testing chamber is provided, with one end of the feed pipe extending above the second turntable and equipped with a feeding assembly for conveying mechanical parts one by one onto the second turntable.
[0013] The discharge pipe connected to the testing chamber is used to output the mechanical parts that have been tested by the second turntable to the outside of the testing chamber.
[0014] In one embodiment, a rotating ring is rotatably connected inside the support ring, and the camera is fixedly connected to the rotating ring.
[0015] Furthermore, a rotating shaft is fixedly connected to the bottom of the second turntable, and a gear is fixedly connected to the end of the rotating shaft away from the second turntable;
[0016] The rotating ring has an annular groove, and an annular rack is fixedly connected to the side wall of the annular groove. The gear meshes with the annular rack.
[0017] Furthermore, a support rod is fixedly connected to the fixed base, and a limit ring is fixedly connected to the end of the support rod away from the fixed base;
[0018] The second turntable has an annular groove, and the limiting ring is rotatably connected in the annular groove. The second turntable, the limiting ring, and the support rod are all transparent.
[0019] Furthermore, a fixing plate is fixedly connected to the detection chamber, and a friction groove is formed on the fixing plate, with the edge of the second turntable fitting against the inner wall of the friction groove.
[0020] Furthermore, a motor is fixedly connected to the detection chamber, and the output end of the motor is fixedly connected to the first turntable.
[0021] In one embodiment, the feeding assembly includes a pusher box, which is fixedly connected to the bottom of the feed pipe. The feed pipe has a discharge port that communicates with the pusher box, and the discharge port corresponds to the upper surface of the second turntable.
[0022] A pusher block is slidably connected inside the pusher box. A guide tube is fixedly connected to the pusher block. A first spring is sleeved on the guide tube. The two ends of the first spring are fixedly connected to the pusher block and the pusher box, respectively. A connecting groove is opened on the side wall of the pusher box. A first stop bar is fixedly connected to the side wall of the pusher block. The first stop bar is located in the connecting groove.
[0023] The pusher block has a piston groove, a piston head is slidably connected in the piston groove, a piston rod is fixedly connected to the piston head, a second stop bar is fixedly connected to the side wall of the piston rod, the second stop bar is located in the communicating groove, a second spring is provided in the pusher box, the two ends of the second spring are fixedly connected to the piston rod and the pusher box respectively, the guide tube is connected to the piston groove, and the end of the guide tube away from the pusher block passes through the pusher box, and an air jet hole connected to the piston groove is provided on the pusher block.
[0024] Furthermore, a drive housing is fixedly connected to the side wall of the pusher box, a drive block is slidably connected inside the drive housing, a third spring is fixedly connected to one end of the drive block, and the other end of the third spring is fixedly connected to the inner wall of the drive housing.
[0025] The drive block has a storage groove, and a sliding block is slidably connected in the storage groove. One end of the sliding block extends into the communicating groove and is fixedly connected to a triangular block. The other end of the sliding block is fixedly connected to a fourth spring, and the end of the fourth spring away from the sliding block is fixedly connected to the inner wall of the storage groove.
[0026] Furthermore, a support plate is fixedly connected to the detection chamber via a fixed rod, an electric telescopic rod is fixedly connected to the support plate, a push plate is fixedly connected to the telescopic end of the electric telescopic rod, and the push plate cooperates with the discharge pipe.
[0027] Furthermore, a detection door is rotatably connected to the detection chamber, and an alarm light is installed on the detection chamber.
[0028] The beneficial effects of this invention are:
[0029] (1) In this invention, the second turntable squeezes the drive block as it rotates with the first turntable. The drive block drives the pusher block and piston rod to move. After the pusher block moves a certain distance, it will release the blockage of the discharge port, so that a precision mechanical part located above the pusher block in the feed tube falls onto the second turntable. When the drive block releases the pusher block, the pusher block will push the precision mechanical part that has fallen onto the second turntable to the center of the second turntable, so that the camera can take pictures of it from all angles. When the drive block releases the piston rod, the piston rod will blow the air in the piston groove through the air jet hole to remove dust from the precision mechanical part placed on the second turntable, so as to improve the accuracy of the camera in taking pictures of it.
[0030] (2) In this invention, the second turntable rotates with the first turntable and comes into contact with the friction groove, causing the second turntable to rotate under the action of friction. At the same time, the corresponding camera on the second turntable is controlled to work, and the camera can take pictures of the parts placed on the second turntable in a horizontal 360-degree direction.
[0031] (3) The present invention drives the rotating shaft and gear to rotate synchronously by the rotation of the second turntable, and drives the rotating ring to rotate on the support ring. In this way, the camera installed on the rotating ring will rotate 360 degrees in the longitudinal direction, which, in conjunction with the rotation of the part, can take pictures of the part from all directions. Attached Figure Description
[0032] The invention will now be further described with reference to the accompanying drawings.
[0033] Figure 1 This is a schematic diagram of the structure of a visual inspection device for precision machinery proposed in this invention. Figure 1 ;
[0034] Figure 2 This is a schematic diagram of the structure of a visual inspection device for precision machinery proposed in this invention. Figure 2 ;
[0035] Figure 3 This is a schematic diagram of the structure of the first turntable part of a vision inspection device for precision machinery proposed in this invention;
[0036] Figure 4 This is the present invention. Figure 3 Enlarged view of the local structure of region A in the middle;
[0037] Figure 5 This is a schematic diagram of the structure of the second turntable part of a vision inspection device for precision machinery proposed in this invention;
[0038] Figure 6 This is a front view of the first turntable portion of a vision inspection device for precision machinery proposed in this invention;
[0039] Figure 7 This is the present invention. Figure 6 Enlarged view of the local structure of region B in the middle;
[0040] Figure 8 This is the present invention. Figure 7 Enlarged view of the local structure of region C in the middle;
[0041] Figure 9 This is a schematic diagram of the pusher box part of a vision inspection device for precision machinery proposed in this invention;
[0042] Figure 10 This is the present invention. Figure 9 Enlarged view of the local structure of region D in the middle.
[0043] Attached reference numerals: 1. Testing chamber; 11. Testing door; 12. Warning light; 13. Fixing plate; 131. Friction groove; 2. Discharge pipe; 3. First turntable; 31. Motor; 4. Fixing base; 41. Support ring; 42. Support rod; 43. Limiting ring; 5. Feed pipe; 51. Discharge port; 6. Support plate; 61. Electric telescopic rod; 62. Push plate; 7. Second turntable; 71. Rotating shaft; 72. Gear; 8. Rotating ring; 81. Camera; 82. 9. Annular groove; 9. Annular rack; 9. Pusher box; 9. Pusher block; 9. First stop bar; 9. Guide tube; 9. First spring; 9. Piston groove; 9. Piston head; 9. Piston rod; 9. Second spring; 9. Second stop bar; 9. Air jet hole; 9. Drive housing; 9. Drive block; 9. Third spring; 9. Fourth spring; 9. Sliding block; 9. Triangular block; 9. Connecting groove. Detailed Implementation
[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0045] Please see Figures 1-10 As shown, in one embodiment, a visual inspection device for precision machinery is provided, including an inspection chamber 1;
[0046] A first turntable 3 is rotatably connected inside the detection chamber 1. Multiple fixed seats 4 are fixedly connected to the first turntable 3, and a support ring 41 is fixedly connected to the fixed seat 4.
[0047] The second turntable 7, which is rotatably connected to the fixed base 4, is equipped with a camera 81 facing the second turntable 7 on the support ring 41, for taking pictures of the mechanical parts on the second turntable 7.
[0048] The feed pipe 5 is connected to the testing chamber 1. One end of the feed pipe 5 extends to the top of the second turntable 7 and is equipped with a feeding assembly, which is used to transport mechanical parts one by one to the second turntable 7.
[0049] The discharge pipe 2, connected to the testing chamber 1, is used to output the mechanical parts that have been tested by the second turntable 7 to the outside of the testing chamber 1.
[0050] Through the above technical solution, the precision mechanical parts to be inspected can enter the inspection chamber 1 through the feed pipe 5, and be fed one by one onto the second turntable 7 by the feeding assembly. In coordination with the first turntable 3 driving the second turntable 7 to rotate in the inspection chamber 1, each precision mechanical part to be inspected can be placed on a separate second turntable 7 in sequence. This ensures that the camera 81 set on the support ring 41 will not produce incorrect shooting results due to the small gap between adjacent parts during the shooting process of the precision mechanical parts, thus preventing visual inspection errors. At the same time, the second turntable 7 rotates on the fixed base 4, allowing the camera 81 to shoot and record the precision mechanical parts placed on the second turntable 7 from 360 degrees, thereby achieving the purpose of accurately judging whether their quality is qualified.
[0051] A rotating ring 8 is rotatably connected inside the support ring 41, and a camera 81 is fixedly connected to the rotating ring 8. The camera 81, which is fixedly connected to the rotating ring 8, can take pictures of the precision mechanical parts to be inspected from all angles, further improving the accuracy of its pictures.
[0052] A rotating shaft 71 is fixedly connected to the bottom of the second turntable 7, and a gear 72 is fixedly connected to the end of the rotating shaft 71 away from the second turntable 7.
[0053] The rotating ring 8 has an annular groove 82, and an annular rack 83 is fixedly connected to the side wall of the annular groove 82. The gear 72 meshes with the annular rack 83, and the rotation of the second turntable 7 can drive the rotating ring 8 to rotate.
[0054] A support rod 42 is fixedly connected to the fixed base 4, and a limit ring 43 is fixedly connected to the end of the support rod 42 away from the fixed base 4;
[0055] The second turntable 7 has an annular groove, and the limiting ring 43 is rotatably connected in the annular groove. The second turntable 7, the limiting ring 43, and the support rod 42 are all transparent. The transparent second turntable 7, the limiting ring 43, and the support rod 42 can ensure that the camera 81 continues to photograph the part to be tested placed on the second turntable 7 when it moves below the second turntable 7.
[0056] A fixed plate 13 is fixedly connected inside the testing chamber 1. A friction groove 131 is provided on the fixed plate 13. The edge of the second turntable 7 is in contact with the inner wall of the friction groove 131. During the rotation of the first turntable 3, the second turntable 7 and the fixed plate 13 are driven to undergo relative displacement, thereby driving the second turntable 7 to rotate through the friction between the edge of the second turntable 7 and the inner wall of the friction groove 131.
[0057] A motor 31 is fixedly connected inside the testing chamber 1, and the output end of the motor 31 is fixedly connected to the first turntable 3.
[0058] The feeding assembly includes a pusher box 9, which is fixedly connected to the bottom of the feed pipe 5. The feed pipe 5 has a discharge port 51 that communicates with the pusher box 9, and the discharge port 51 corresponds to the upper surface of the second turntable 7.
[0059] A pusher block 91 is slidably connected inside the pusher box 9. A guide tube 92 is fixedly connected to the pusher block 91. A first spring 93 is sleeved on the guide tube 92. The two ends of the first spring 93 are fixedly connected to the pusher block 91 and the pusher box 9, respectively. A connecting groove 97 is opened on the side wall of the pusher box 9. A first stop bar 911 is fixedly connected to the side wall of the pusher block 91. The first stop bar 911 is located in the connecting groove 97.
[0060] A piston groove 94 is provided on the pusher block 91. A piston head 941 is slidably connected in the piston groove 94. A piston rod 942 is fixedly connected to the piston head 941. A second stop bar 944 is fixedly connected to the side wall of the piston rod 942. The second stop bar 944 is located in the connecting groove 97. A second spring 943 is provided in the pusher box 9. The two ends of the second spring 943 are fixedly connected to the piston rod 942 and the pusher box 9, respectively. A guide tube 92 is connected to the piston groove 94. The end of the guide tube 92 away from the pusher block 91 passes through the pusher box 9. An air jet hole 95 is provided on the pusher block 91 and is connected to the piston groove 94. A one-way valve is installed in both the guide tube 92 and the air jet hole 95.
[0061] A drive housing 96 is fixedly connected to the side wall of the pusher box 9. A drive block 961 is slidably connected inside the drive housing 96. A third spring 962 is fixedly connected to one end of the drive block 961, and the other end of the third spring 962 is fixedly connected to the inner wall of the drive housing 96.
[0062] A storage groove is provided on the drive block 961, and a sliding block 964 is slidably connected in the storage groove. One end of the sliding block 964 extends into the connecting groove 97 and is fixedly connected to a triangular block 965. The other end of the sliding block 964 is fixedly connected to a fourth spring 963. The end of the fourth spring 963 away from the sliding block 964 is fixedly connected to the inner wall of the storage groove. When the second turntable 7 rotates with the first turntable 3, it will squeeze the drive block 961 when it passes under the pusher box 9. As the drive block 961 slides in the drive housing 96, it drives the pusher block 91 and the piston rod 942 to move away from the second turntable 7. After the pusher block 91 moves a certain distance, it will... The blockage of the discharge port 51 is removed, allowing a precision mechanical part located above the pusher block 91 in the feed pipe 5 to fall onto the second turntable 7. When the drive block 961 releases its push on the pusher block 91, the pusher block 91 will push the precision mechanical part that has fallen onto the second turntable 7 to the center of the second turntable 7, so that the camera 81 can subsequently capture it from all angles. When the drive block 961 releases its push on the piston rod 942, the piston rod 942 will blow air from the piston groove 94 through the air jet hole 95 onto the precision mechanical part placed on the second turntable 7 to remove dust, so as to improve the accuracy of the subsequent capture by the camera 81.
[0063] Inside the testing chamber 1, a support plate 6 is fixedly connected by a fixed rod. An electric telescopic rod 61 is fixedly connected to the support plate 6. A push plate 62 is fixedly connected to the telescopic end of the electric telescopic rod 61. The push plate 62 cooperates with the discharge pipe 2. The electric telescopic rod 61 can push the push plate 62 to move, thereby pushing the precision mechanical parts that have been tested to the opening of the discharge pipe 2, so that they are discharged through the discharge pipe 2.
[0064] The testing chamber 1 is rotatably connected to a testing door 11, and a warning light 12 is installed on the testing chamber 1. The testing door 11 facilitates manual repair of faults that occur during the testing process in the testing chamber 1, and the warning light 12 can provide warning feedback on the testing results of precision mechanical parts, equipment operating status and other related information.
[0065] The specific process of using this equipment is as follows: Precision mechanical parts to be inspected are sequentially fed through the feed pipe 5 to one end of the feed box 9, which is fixedly connected to the feed box. The size of the discharge port 51 corresponds to the part to be inspected; only one part falls through the discharge port 51 each time. Then, the control motor 31 is started, driving the first turntable 3 to rotate within the inspection chamber 1, thereby driving multiple second turntables 7 to rotate synchronously. When the second turntable 7 rotates to the vicinity of the feed box 9, it abuts against the drive block 961, pushing the drive block 961 into the drive housing 96. Thus, the drive block 961, through the triangular block 965, applies a pushing force to the first stop bar 911 in a direction away from the second turntable 7, causing the feed block 91 and the piston rod 942 to move away from the second turntable 7. As the turntable 7 moves, the pusher block 91 and piston rod 942 simultaneously compress the first spring 93 and the second spring 943, gradually releasing the blockage of the feed port 51 by the pusher block 91 until the tightly fitted mechanical parts to be tested in the feed pipe 5 fall from the feed port 51 onto the second turntable 7. As the triangular block 965 moves away from the second turntable 7 with the drive block 961, it is also subjected to the reaction force of the first stop bar 911. This reaction force also provides a pushing force towards the fourth spring 963 to the sliding block 964 and the triangular block 965. As the first spring 93 and the second spring 943 are gradually compressed, the elastic force of the first spring 93 and the second spring 943 on the pusher block 91 and piston rod 942 gradually increases. 64. Under the reaction force of the first stop bar 911, the fourth spring 963 will also be compressed and gradually slide towards the fourth spring 963. When the tip of the triangular block 965 passes the first stop bar 911, the pushing force on the first stop bar 911 will be canceled. The pusher block 91 will slide towards the second turntable 7 under the elastic force of the first spring 93. In this way, the pusher block 91 can push the part that has fallen on the second turntable 7 to the center position of the second turntable 7. When the triangular block 965 cancels the pushing force on the first stop bar 911, the piston rod 942 will also move towards the second turntable 7 synchronously under the elastic force of the second spring 943. However, when the second stop bar 944 abuts against the upper inclined surface of the triangular block 965, it will stop moving and will be continuously pushed away from the first turntable 7. The triangular block 965, moving in the direction of the second turntable 7, continues to push. At this time, the pusher block 91 and the piston rod 942 move relative to each other, causing the piston head 941 to move away from the second turntable 7 within the piston groove 94. This allows outside air to be drawn into the piston groove 94 through the guide tube 92. As the elastic force of the second spring 943 gradually increases, the reaction force of the second stop bar 944 on the triangular block 965 pushes the sliding block 964 continuously towards the fourth spring 963 until the tip of the triangular block 965 passes the second stop bar 944. At this point, the second stop bar 944 moves closer to the second turntable 7 under the elastic force of the second spring 943, thereby pushing the piston head 941 to compress the air in the piston groove 94, causing the air to be ejected through the jet hole 95.The ejected air can blow away dust from the parts placed at the center of the second turntable 7, further improving the accuracy of subsequent inspection. After the second turntable 7 passes the drive block 961, the drive block 961 resets under the elastic force of the third spring 962, causing the tip of the triangular block 965 to pass over the second stop bar 944 and the first stop bar 911, re-engaging with the side of the first stop bar 911 closer to the second turntable 7. This completes the purpose of individually conveying the parts fed through the feed pipe 5 to the center of the second turntable 7 and blowing away surface dust.
[0066] As the first turntable 3 continues to rotate, the second turntable 7, on which the parts are placed, comes into contact with the friction groove 131 formed on the fixed plate 13. This causes the second turntable 7 to rotate under the frictional force of the friction groove 131. Simultaneously, the camera 81 corresponding to the second turntable 7 is controlled to operate. The camera 81 can capture 360-degree horizontal images of the parts placed on the second turntable 7. Furthermore, as the second turntable 7 rotates, it drives the rotating shaft 71 and gear 72 to rotate synchronously. The gear 72 meshes with the ring rack 83, thereby driving the ring rack... The rotating ring 8, which is fixedly connected to the support ring 41, rotates. The camera 81, which is mounted on the rotating ring 8, will rotate 360 degrees vertically. In conjunction with the rotation of the part, it can capture images of the part from all directions. It should be noted that the second turntable 7, the limiting ring 43, and the support rod 42 are all transparent. When the camera 81 moves below the second turntable 7, it can continuously capture images of the lower half of the part, thereby achieving the purpose of accurately and fully capturing images of the precision mechanical part. This allows for a precise judgment of the surface quality and geometric dimensions of the part.
[0067] After the parts on the second turntable 7 are fully photographed and analyzed by the built-in processing control center, when the second turntable 7 moves to the direction of the discharge pipe 2, the built-in processing control center will discharge different parts through different discharge pipes 2 according to the detected results. The specific process is to control the electric telescopic rod 61 to work. The telescopic end of the electric telescopic rod 61 extends and pushes the push plate 62 to move towards the discharge pipe 2, thereby pushing the parts placed on the second turntable 7 into the corresponding discharge pipe 2 and sliding out through the discharge pipe 2. According to the usage requirements, this equipment can be equipped with two or more discharge pipes 2. One discharge pipe 2 is used to discharge qualified precision mechanical parts, and the other discharge pipe 2 is used to discharge unqualified precision mechanical parts.
[0068] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.
Claims
1. A visual inspection device for precision machinery, characterized in that, Including the testing room (1); A first turntable (3) is rotatably connected inside the detection chamber (1). A plurality of fixed seats (4) are fixedly connected to the first turntable (3), and a support ring (41) is fixedly connected to the fixed seat (4). The second turntable (7) is rotatably connected to the fixed base (4), and the support ring (41) is provided with a camera (81) facing the second turntable (7) for taking pictures of the mechanical parts on the second turntable (7); A feed pipe (5) is connected to the detection chamber (1). One end of the feed pipe (5) extends above the second turntable (7) and is equipped with a feeding assembly for conveying mechanical parts one by one to the second turntable (7). The discharge pipe (2) connected to the testing chamber (1) is used to output the mechanical parts that have been tested by the second turntable (7) to the outside of the testing chamber (1); The support ring (41) is rotatably connected to a rotating ring (8), and the camera (81) is fixedly connected to the rotating ring (8); The bottom of the second turntable (7) is fixedly connected to a rotating shaft (71), and a gear (72) is fixedly connected to one end of the rotating shaft (71) away from the second turntable (7). The rotating ring (8) has an annular groove (82), and an annular rack (83) is fixedly connected to the side wall of the annular groove (82). The gear (72) meshes with the annular rack (83).
2. The visual inspection equipment for precision machinery according to claim 1, characterized in that, A support rod (42) is fixedly connected to the fixed base (4), and a limit ring (43) is fixedly connected to the end of the support rod (42) away from the fixed base (4). The second turntable (7) has an annular groove, and the limiting ring (43) is rotatably connected in the annular groove. The second turntable (7), the limiting ring (43) and the support rod (42) are all transparent.
3. The visual inspection equipment for precision machinery according to claim 2, characterized in that, A fixed plate (13) is fixedly connected inside the testing chamber (1). A friction groove (131) is provided on the fixed plate (13). The edge of the second turntable (7) is in contact with the inner wall of the friction groove (131).
4. The visual inspection equipment for precision machinery according to claim 3, characterized in that, A motor (31) is fixedly connected inside the testing chamber (1), and the output end of the motor (31) is fixedly connected to the first turntable (3).
5. The visual inspection equipment for precision machinery according to claim 4, characterized in that, The feeding assembly includes a pusher box (9), which is fixedly connected to the bottom of the feed pipe (5). The feed pipe (5) has a discharge port (51) that communicates with the pusher box (9). The discharge port (51) corresponds to the upper surface of the second turntable (7). A pusher block (91) is slidably connected inside the pusher box (9). A guide tube (92) is fixedly connected to the pusher block (91). A first spring (93) is sleeved on the guide tube (92). The two ends of the first spring (93) are fixedly connected to the pusher block (91) and the pusher box (9) respectively. A connecting groove (97) is opened on the side wall of the pusher box (9). A first stop bar (911) is fixedly connected to the side wall of the pusher block (91). The first stop bar (911) is located in the connecting groove (97). The pusher block (91) is provided with a piston groove (94), and a piston head (941) is slidably connected in the piston groove (94). A piston rod (942) is fixedly connected to the piston head (941). A second stop bar (944) is fixedly connected to the side wall of the piston rod (942). The second stop bar (944) is located in the connecting groove (97). A second spring (943) is provided in the pusher box (9). The two ends of the second spring (943) are fixedly connected to the piston rod (942) and the pusher box (9) respectively. The guide tube (92) is connected to the piston groove (94). The end of the guide tube (92) away from the pusher block (91) passes through the pusher box (9). The pusher block (91) is provided with an air jet hole (95) connected to the piston groove (94).
6. The visual inspection equipment for precision machinery according to claim 5, characterized in that, A drive housing (96) is fixedly connected to the side wall of the pusher box (9), and a drive block (961) is slidably connected inside the drive housing (96). A third spring (962) is fixedly connected to one end of the drive block (961), and the other end of the third spring (962) is fixedly connected to the inner wall of the drive housing (96). The drive block (961) has a storage groove, and a sliding block (964) is slidably connected in the storage groove. One end of the sliding block (964) extends into the connecting groove (97) and is fixedly connected to a triangular block (965). The other end of the sliding block (964) is fixedly connected to a fourth spring (963). The end of the fourth spring (963) away from the sliding block (964) is fixedly connected to the inner wall of the storage groove.
7. The visual inspection equipment for precision machinery according to claim 6, characterized in that, Inside the testing chamber (1), a support plate (6) is fixedly connected by a fixed rod. An electric telescopic rod (61) is fixedly connected to the support plate (6). A push plate (62) is fixedly connected to the telescopic end of the electric telescopic rod (61). The push plate (62) cooperates with the discharge pipe (2).
8. The visual inspection equipment for precision machinery according to claim 7, characterized in that, The detection chamber (1) is rotatably connected to a detection door (11), and an alarm light (12) is installed on the detection chamber (1).