Multi-view synchronous detection device for gear tooth surface defects based on visual detection

Abstract

The present application relates to gear detection technical field, and disclose a kind of gear tooth surface defect multi-view synchronous detection device based on visual detection, including annular conveyor, several mobile seats are provided on annular conveyor, the outer periphery of annular conveyor is provided with track, track is fixed on the rack of annular conveyor by two connecting seats, the end position of track is fixed with protruding block, the side of annular conveyor is provided with first mounting bracket and second mounting bracket, a plurality of visual detection modules are installed on first mounting bracket, cylinder is installed on second mounting bracket, cylinder is inclined arrangement, the telescopic end of cylinder is fixed with push plate.The present application can detect the tooth surface of gear, and also can detect the gear tooth groove, avoid the limitation of single detection, ensure the comprehensive detection of gear defect, improve detection accuracy.

Description

Technical Field

[0001] This invention relates to the field of gear inspection technology, and in particular to a multi-view synchronous inspection device for gear tooth surface defects based on vision inspection. Background Technology

[0002] Gear tooth surface defects based on vision inspection refer to various surface damages or abnormalities that do not conform to design or quality standards, which can be identified when inspecting gear tooth surfaces using machine vision technology.

[0003] Existing gear defect detection devices have limited detection range. Front and back detection devices may miss hidden defects such as cracks, pitting, or burrs inside the tooth groove, while detection systems that focus on the tooth groove may not be able to detect macroscopic damage such as broken teeth or excessive wear at the tooth tip or root. This localized detection results in blind spots in defect identification and makes it impossible to form a complete assessment of the overall quality of the gear. When comprehensive inspection is required, companies have to purchase two sets of equipment or repeatedly clamp the gear, which increases equipment investment costs and reduces detection accuracy due to clamping errors caused by multiple positioning.

[0004] Therefore, it is necessary to design a vision-based multi-view synchronous detection device for gear tooth surface defects to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multi-view synchronous detection device for gear tooth surface defects based on visual inspection.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A multi-view synchronous detection device for gear tooth surface defects based on vision inspection includes a ring conveyor with several movable seats. A track is provided on the outer periphery of the ring conveyor and is fixed to the frame of the ring conveyor by two connecting seats. A protrusion is fixed at the end of the track. A first mounting frame and a second mounting frame are provided on one side of the ring conveyor. Several vision inspection modules are installed on the first mounting frame and a cylinder is installed on the second mounting frame. The cylinder is inclined and a push plate is fixed to the telescopic end of the cylinder. Each of the movable seats is provided with a mounting component for fixing the gear. The mounting component consists of a clamping structure, a pushing structure and a positioning structure. The annular conveyor is equipped with a control component, and several horizontal plates are fixed on the first mounting frame. Each horizontal plate is equipped with several equally spaced horizontal bars.

[0007] As a preferred embodiment of the present invention, the track is composed of two first horizontal sections, two arc-shaped sections and one second horizontal section. The second horizontal section is connected in front of the two arc-shaped sections, and the two first horizontal sections are respectively connected to the two arc-shaped sections. The two first horizontal sections are located on the same straight line and there is a gap between the two first horizontal sections.

[0008] As a preferred embodiment of the present invention, the clamping structure includes a mounting rod and a bracket. The bracket is fixed on a movable seat, and a baffle is fixed on the bracket. The mounting rod is rotatably mounted on the bracket. The mounting rod has a cavity inside. A fixing plate and a counterweight are fixedly sleeved on the mounting rod. The counterweight is located below the fixing plate. The mounting rod has several openings, each of which communicates with the cavity. A pressure block is slidably disposed in each opening. A limit block is fixed on each pressure block. A magnetic plate is embedded on the side of each pressure block. An inclined surface is provided on each pressure block.

[0009] As a preferred embodiment of the present invention, the pushing structure includes a movable rod, a top block, and a fixed rod. The top block is fixed between the movable rod and the fixed rod. The movable rod passes through the bottom end of the mounting rod and is slidably connected to the mounting rod. The fixed rod passes through the top end of the mounting rod and is slidably connected to the mounting rod. The top block is located below a plurality of pressure blocks and is positioned directly opposite the inclined surface of the plurality of pressure blocks. The end of the movable rod away from the mounting rod extends onto the track. A collar is fixedly fitted onto the end of the movable rod away from the mounting rod. The collar is connected to the mounting rod by a first spring. A groove is formed at the end of the fixed rod away from the top block, and a magnetic ring is embedded in the fixed rod.

[0010] As a preferred embodiment of the present invention, the positioning structure includes a plurality of vertical rods, each of which is fixed to the top of a mounting rod. A mounting ring is fixed to the top of each of the vertical rods. The mounting ring and the fixed rod are coaxially arranged. A movable rod is slidably arranged on the mounting ring. A locking block is fixed to one end of the movable rod. The locking block has an inclined surface. The locking block is connected to the mounting ring by a second spring. A first magnetic block is fixed to the other end of the movable rod.

[0011] As a preferred embodiment of the present invention, the control component includes a fixed frame, which is fixed on the frame of the circular conveyor, and a second magnetic block is fixed on the fixed frame.

[0012] As a preferred embodiment of the present invention, the magnetic poles of the first magnetic block and the second magnetic block facing each other are opposite poles.

[0013] As a preferred embodiment of the present invention, the movable rod, the top block, and the fixed rod are arranged coaxially.

[0014] As a preferred embodiment of the present invention, the cross-section of the protrusion has a semi-circular structure.

[0015] As a preferred embodiment of the present invention, each of the horizontal plates is provided with an adjustment component, which is used to adjust the position of several horizontal bars. The adjustment component includes an assembly frame, which is fixed to the horizontal plate. Several adjustment plates are slidably arranged on the assembly frame, and the several adjustment plates are respectively connected to several horizontal bars. A lead screw is rotatably installed on the assembly frame, and a lifting plate is threaded onto the lead screw. Several adjustment slots are opened on the lifting plate, and the several adjustment slots are radially distributed. Each adjustment plate is fixed with a side block, and the several side blocks slide in the several adjustment slots respectively.

[0016] The present invention has the following beneficial effects: 1. This device can detect both the tooth surface and the tooth groove of the gear, avoiding the limitations of single detection, ensuring comprehensive detection of gear defects, and improving detection accuracy. 2. Most of the processes from fixing and inspecting the gears to removing them are automated. Workers only need to perform loading and unloading operations, which reduces manual intervention, lowers labor intensity, and improves inspection efficiency. 3. Through the cooperation of structures such as movable rod, top block, pressure block, and clamping block, several pressure blocks can move synchronously and press against the inner ring of the gear. The clamping block and the groove fix the pressure blocks to maintain the clamping state, ensuring the stability of the gear during the testing process. 4. During the inspection of tooth groove defects, the gear will mesh with several crossbars and rotate, allowing the vision inspection module to capture images of the gear tooth groove from all directions, ensuring the comprehensiveness of the inspection.

[0017] 5. The adjustment component can adjust the spacing between adjacent crossbars according to the gear size, so that several crossbars can smoothly drive gears of different sizes to rotate, thus expanding the applicability of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the multi-view synchronous detection device for gear tooth surface defects based on vision inspection proposed in this invention. Figure 1 ; Figure 2 This is a schematic diagram of the multi-view synchronous detection device for gear tooth surface defects based on vision inspection proposed in this invention. Figure 2 ; Figure 3 for Figure 2 Enlarged view of the structure at point A; Figure 4 This is a structural diagram of the first mounting bracket and several vision inspection modules; Figure 5 This is a schematic diagram of the structure of the circular conveyor and its control components; Figure 6 This is a structural diagram of the installed components; Figure 7 This is a cross-sectional view of the installed components. Figure 8 for Figure 7 Enlarged view of the structure at point B; Figure 9 for Figure 7 Enlarged view of the structure at point C; Figure 10 Schematic diagram of the adjustment component Figure 1 ; Figure 11 Schematic diagram of the adjustment component Figure 2 .

[0019] In the diagram: 1. Circular conveyor; 11. Moving seat; 2. Track; 21. Connecting seat; 22. Protrusion; 3. First mounting frame; 31. Vision inspection module; 4. Second mounting frame; 41. Cylinder; 42. Push plate; 51. Mounting rod; 511. Opening; 512. Fixing plate; 513. Counterweight; 52. Bracket; 521. Baffle; 53. Pressure block; 531. Magnetic plate; 532. Limiting block; 54. 541. Movable rod; 542. Collar; 543. First spring; 544. Top block; 545. Fixed rod; 5451. Magnetic ring; 551. Groove; 552. Vertical rod; 553. Mounting ring; 554. Moving rod; 555. Locking block; 556. First magnetic block; 557. Second spring; 61. Fixed frame; 62. Second magnetic block; 71. Horizontal plate; 72. Assembly frame; 721. Adjusting plate; 73. Crossbar. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] Example 1: This example describes a vision-based multi-view synchronous detection device for gear tooth groove defects, as disclosed in this example. (Refer to...) Figure 1-9The system includes a circular conveyor 1, on which several movable seats 11 are mounted. When the circular conveyor 1 operates, the movable seats 11 move synchronously. A track 2 is mounted on the outer periphery of the circular conveyor 1, and the track 2 is fixed to the frame of the circular conveyor 1 via two connecting seats 21. The track 2 consists of two first horizontal sections, two arc-shaped sections, and one second horizontal section. The second horizontal section is connected before the two arc-shaped sections, and the two first horizontal sections are respectively connected to the two arc-shaped sections. The two first horizontal sections are located on the same straight line, and there is a gap between them. The shape of the track 2 is adapted to the circular conveyor 1. Figure 1 As shown, a protrusion 22 is fixed at the end of the track 2. The cross-section of the protrusion 22 is semi-circular. A first mounting frame 3 and a second mounting frame 4 are provided on one side of the annular conveyor 1. Several vision inspection modules 31 are installed on the first mounting frame 3. The vision inspection modules 31 are arranged in a linear array. The specific structure and working principle of the vision inspection modules 31 are existing technologies, and the implementation method adopts conventional means. They are not shown in the figure and will not be described in detail here. When the gear passes under the vision inspection modules 31, the vision inspection modules 31 perform defect detection on the gear. A cylinder 41 is installed on the second mounting frame 4. The cylinder 41 is inclined. A push plate 42 is fixed at the telescopic end of the cylinder 41.

[0022] Each movable base 11 is equipped with a mounting assembly for fixing the gear. The mounting assembly consists of a clamping structure, a pushing structure, and a positioning structure. The clamping structure includes a mounting rod 51 and a bracket 52. The bracket 52 is fixed on the movable base 11, and a baffle 521 is fixed on the bracket 52. The mounting rod 51 is rotatably mounted on the bracket 52. When the mounting rod 51 rotates to a horizontal position, the baffle 521 provides a limit for the mounting rod 51, keeping the mounting rod 51 in a horizontal position. The mounting rod 51 has a cavity inside, and several openings 511 are opened on the outer circumference of the mounting rod 51. A fixing plate 512 and a counterweight are fixedly sleeved on the mounting rod 51. Block 513, the counterweight block 513 is located below the fixed plate 512. When placing the gear, the gear is sleeved on the mounting rod 51 and falls on the fixed plate 512. The mounting rod 51 has several openings 511, each opening 511 is connected to the cavity, and a pressure block 53 is slidably arranged in each opening 511. Each pressure block 53 is fixed with a limit block 532. The limit block 532 is set to prevent the pressure block 53 from falling out of the opening 511. A magnetic plate 531 is embedded on the side of each pressure block 53. Each pressure block 53 is provided with an inclined surface. In the initial state, several pressure blocks 53 are retracted into several openings 511 respectively.

[0023] The pushing structure includes a movable rod 54, a top block 543, and a fixed rod 545. The top block 543 is fixed between the movable rod 54 and the fixed rod 545. The movable rod 54 passes through the bottom end of the mounting rod 51 and is slidably connected to the mounting rod 51. The fixed rod 545 passes through the top end of the mounting rod 51 and is slidably connected to the mounting rod 51. The movable rod 54, the top block 543, and the fixed rod 545 are arranged coaxially. The top block 543 is located below several pressure blocks 53, and the top block 543 is positioned directly opposite the inclined surface of the pressure blocks 53. The end of the movable rod 54 away from the mounting rod 51 extends onto the track 2. When the movable rod 54 slides... When the rod is on track 2, track 2 provides a limit for the movable rod 54, keeping the mounting rod 51 in a vertical state. When the movable rod 54 is disengaged from track 2, track 2 no longer constrains the movable rod 54. At this time, under the action of counterweight 513, the mounting rod 51 rotates automatically. A collar 541 is fixedly sleeved on the end of the movable rod 54 away from the mounting rod 51. The collar 541 is connected to the mounting rod 51 by a first spring 542. The first spring 542 is set for the automatic reset of the movable rod 54. A groove 551 is opened on the end of the fixed rod 545 away from the top block 543. A magnetic ring 5451 is embedded on the fixed rod 545.

[0024] The positioning structure includes several vertical rods 552, all of which are fixed to the top of the mounting rod 51. The tops of the several vertical rods 552 are jointly fixed with a mounting ring 553. The mounting ring 553 and the fixing rod 545 are coaxially arranged. The fixing rod 545 can pass through the mounting ring 553. A movable rod 554 is slidably arranged on the mounting ring 553. One end of the movable rod 554 is fixed with a locking block 555. The locking block 555 has an inclined surface. The locking block 555 is connected to the mounting ring 553 by a second spring 557. The other end of the movable rod 554 is fixed with a first magnetic block 556.

[0025] A control component is provided on the circular conveyor 1. The control component includes a fixed frame 61, which is fixed on the frame of the circular conveyor 1. A second magnetic block 62 is fixed on the fixed frame 61. The magnetic poles of the first magnetic block 556 and the second magnetic block 62 facing each other are opposite poles. When the first magnetic block 556 moves to a position facing the second magnetic block 62, the second magnetic block 62 will attract the first magnetic block 556, causing the first magnetic block 556 to be attracted to the second magnetic block 62. Several horizontal plates 71 are fixed on the first mounting frame 3. Several horizontal bars 73 are provided on each horizontal plate 71.

[0026] The implementation principle of this embodiment is as follows: The operator starts the circular conveyor 1, which drives several movable seats 11 to move synchronously. When the movable seats 11 move, the mounting rod 51 moves accordingly. For the mounting rod 51 located on the track 2, under the constraint of the track 2, the mounting rod 51 remains in a vertical state. At this time, the tooth surface of the gear can be inspected for defects. This is existing technology and will not be described in detail here. During the inspection, the operator places the gear to be inspected on the vertically positioned mounting rod 51, so that the gear falls on the fixed plate 512. When the mounting rod 51 moves, the gear will move accordingly. When the mounting rod 51 moves to the end position of the track 2, the mounting rod 51 will pass through the protrusion 22. At this time, the protrusion 22 will block the movement of the movable rod 54, causing the bottom end of the movable rod 54 to move along the surface of the protrusion 22. At this time, the movable rod 54 will move upward. When the movable rod 54 moves upward, it drives the top block 543 and the fixed rod 545 to move upward. When the top block 543 moves upward, it pushes the inclined surfaces of several pressure blocks 53. The pressure blocks 53 move in response to the push from the top block 543, allowing them to move synchronously and extend from their corresponding openings 511 until several locking blocks 555 press against the inner ring of the gear, thus fixing the gear. At the same time, when the fixing rod 545 moves upward, it pushes the inclined surfaces of the locking blocks 555, causing them to move. When the groove 551 on the fixing rod 545 moves to a position directly opposite the locking block 555, the locking block 555 will reset under the elastic force of the second spring 557 and lock into the groove 551. At this time, the locking block 555 and the groove 551 together fix the fixing rod 545. When the fixing rod 545 is fixed, the top block 543 cannot move, and the positions of the pressure blocks 53 are also fixed. This allows the pressure blocks 53 to maintain the state of clamping the gear, thus ensuring the fixing effect on the gear and facilitating subsequent testing.

[0027] Furthermore, the mounting rod 51 will detach from the track 2. Without the constraint of the track 2, the mounting rod 51 will automatically rotate under the action of the counterweight 513. When the mounting rod 51 rotates 90 degrees, the movable rod 54 just contacts the baffle 521. At this time, the baffle 521 provides constraint for the movable rod 54, keeping the mounting rod 51 stationary in a horizontal state. This causes the gear teeth to face upwards, and the gear maintains this state as it moves between the two first horizontal sections of the track 2. Figure 1 As shown, during this process, the gear passes directly below several vision inspection modules 31, which then take pictures of the gear to detect tooth groove defects. During the inspection, the gear meshes with several crossbars 73 and rotates under their action, allowing the vision inspection modules 31 to take pictures of the gear tooth groove from all directions, ensuring comprehensive inspection of the gear.

[0028] When the mounting rod 51 moves to the position directly opposite the cylinder 41, the cylinder 41 operates, and its telescopic end extends, causing the push plate 42 to push the mounting rod 51. The mounting rod 51 rotates under the pushing action of the push plate 42, eventually reaching a vertical position, allowing it to slide into the track 2. Further, the mounting rod 51 continues to move along the track 2. When the first magnetic block 556 moves to the position directly opposite the second magnetic block 62, the second magnetic block 62 attracts the first magnetic block 556, causing it to adhere to the second magnetic block 62. The first magnetic block 556 moves to a position that can drive the moving rod 554 to move. As the moving rod 554 moves, the locking block 555... As it moves, the locking block 555 disengages from the groove 551. Without the locking block 555 for fixation, the movable rod 54, the top block 543, and the fixed rod 545 will reset under the action of the first spring 542. At this time, the top block 543 will separate from the pressure blocks 53. When the fixed rod 545 is reset, the magnetic ring 5451 is facing the magnetic plates 531. Under the attraction of the magnetic ring 5451, the magnetic plates 531 drive the pressure blocks 53 to move toward the fixed rod 545, so that the pressure blocks 53 complete the reset. When the pressure blocks 53 are reset, they will separate from the gear and no longer provide a fixing effect for the gear, making it convenient for the staff to remove the gear from the mounting rod 51.

[0029] In summary, the gear inspection device proposed in this invention can inspect both the tooth surface and the tooth groove of gears, ensuring the accuracy of gear defect detection. At the same time, the operator only needs to perform loading and unloading operations, while other processes are automated, making the operation simple and ensuring efficiency.

[0030] Example 2: Based on Example 1, this example discloses a multi-view synchronous detection device for gear tooth groove defects based on vision inspection, such as... Figure 10 and Figure 11 As shown, each horizontal plate 71 is equipped with an adjustment component for adjusting the position of several horizontal bars 73. The adjustment component includes an assembly frame 72, which is fixed on the horizontal plate 71. Several adjustment plates 721 are slidably arranged on the assembly frame 72, and the adjustment plates 721 are respectively connected to several horizontal bars 73. A lead screw is rotatably installed on the assembly frame 72, and a lifting plate is threaded onto the lead screw. Several adjustment slots are opened on the lifting plate, and the adjustment slots are distributed radially. Each adjustment plate 721 is fixed with a side block, and the side blocks slide in the adjustment slots respectively. During testing, the operator can adjust the distance between two adjacent horizontal bars 73 according to the size of the gear, so that the horizontal bars 73 can smoothly drive the gear to rotate. Specifically, the operator rotates the lead screw, and the rotation of the lead screw drives the lifting plate to move. Under the cooperation of the adjustment slots and the side blocks, the adjustment plates 721 move synchronously, and the distance between two adjacent adjustment plates 721 remains the same during the movement, thus adjusting the distribution of the horizontal bars 73.

[0031] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A multi-view synchronous detection device for gear tooth surface defects based on vision inspection, characterized in that, The system includes a ring conveyor (1), on which several movable seats (11) are provided. A track (2) is provided on the outer periphery of the ring conveyor (1). The track (2) is fixed to the frame of the ring conveyor (1) by two connecting seats (21). A protrusion (22) is fixed at the end of the track (2). A first mounting frame (3) and a second mounting frame (4) are provided on one side of the ring conveyor (1). Several vision inspection modules (31) are installed on the first mounting frame (3). A cylinder (41) is installed on the second mounting frame (4). The cylinder (41) is inclined. A push plate (42) is fixed at the telescopic end of the cylinder (41). Each of the movable seats (11) is provided with a mounting component for fixing the gear. The mounting component consists of a clamping structure, a pushing structure and a positioning structure. The ring conveyor (1) is equipped with a control component, and a number of horizontal plates (71) are fixed on the first mounting frame (3). Each horizontal plate (71) is equipped with a number of equally spaced horizontal bars (73).

2. The multi-view synchronous detection device for gear tooth surface defects based on vision inspection according to claim 1, characterized in that, The track (2) consists of two first horizontal sections, two arc-shaped sections and one second horizontal section. The second horizontal section is connected in front of the two arc-shaped sections. The two first horizontal sections are connected to the two arc-shaped sections respectively. The two first horizontal sections are located on the same straight line and there is a gap between the two first horizontal sections.

3. The multi-view synchronous detection device for gear tooth surface defects based on vision inspection according to claim 1, characterized in that, The clamping structure includes a mounting rod (51) and a bracket (52). The bracket (52) is fixed on the movable seat (11). A baffle (521) is fixed on the bracket (52). The mounting rod (51) is rotatably mounted on the bracket (52). The mounting rod (51) has a cavity inside. A fixing plate (512) and a counterweight (513) are fixedly sleeved on the mounting rod (51). The counterweight (513) is located below the fixing plate (512). The mounting rod (51) has several openings (511). Each opening (511) is connected to the cavity. A pressure block (53) is slidably arranged in each opening (511). A limit block (532) is fixed on each pressure block (53). A magnetic plate (531) is embedded on the side of each pressure block (53). An inclined surface is provided on each pressure block (53).

4. The multi-view synchronous detection device for gear tooth surface defects based on vision inspection according to claim 3, characterized in that, The pushing structure includes a movable rod (54), a top block (543), and a fixed rod (545). The top block (543) is fixed between the movable rod (54) and the fixed rod (545). The movable rod (54) passes through the bottom end of the mounting rod (51) and is slidably connected to the mounting rod (51). The fixed rod (545) passes through the top end of the mounting rod (51) and is slidably connected to the mounting rod (51). The top block (543) is located below several pressure blocks (53), and the top block (543) is fixed between the movable rod (54) and the fixed rod (545). 43) The inclined surface of the movable rod (54) is facing several pressure blocks (53). The end of the movable rod (54) away from the mounting rod (51) extends to the track (2). The end of the movable rod (54) away from the mounting rod (51) is fixedly fitted with a collar (541). The collar (541) is connected to the mounting rod (51) by a first spring (542). The end of the fixed rod (545) away from the top block (543) is provided with a groove (551). A magnetic ring (5451) is embedded on the fixed rod (545).

5. The multi-view synchronous detection device for gear tooth surface defects based on vision inspection according to claim 4, characterized in that, The positioning structure includes several vertical rods (552), each of which is fixed to the top of the mounting rod (51). The tops of the several vertical rods (552) are all fixed with a mounting ring (553). The mounting ring (553) and the fixed rod (545) are coaxially arranged. A movable rod (554) is slidably arranged on the mounting ring (553). One end of the movable rod (554) is fixed with a locking block (555). The locking block (555) has an inclined surface. The locking block (555) and the mounting ring (553) are connected by a second spring (557). The other end of the movable rod (554) is fixed with a first magnetic block (556).

6. The multi-view synchronous detection device for gear tooth surface defects based on vision inspection according to claim 1, characterized in that, The control component includes a mounting frame (61) fixed to the frame of the circular conveyor (1), and a second magnetic block (62) is fixed on the mounting frame (61).

7. The multi-view synchronous detection device for gear tooth surface defects based on vision inspection according to claim 6, characterized in that, The magnetic poles of the first magnetic block (556) and the second magnetic block (62) facing each other are opposite poles.

8. The multi-view synchronous detection device for gear tooth surface defects based on vision inspection according to claim 4, characterized in that, The movable rod (54), the top block (543), and the fixed rod (545) are arranged coaxially.

9. The multi-view synchronous detection device for gear tooth surface defects based on vision inspection according to claim 1, characterized in that, The cross-section of the protrusion (22) is semi-circular.

10. The multi-view synchronous detection device for gear tooth surface defects based on vision inspection according to claim 1, characterized in that, Each of the horizontal plates (71) is provided with an adjustment component, which is used to adjust the position of several horizontal bars (73). The adjustment component includes an assembly frame (72), which is fixed on the horizontal plate (71). Several adjustment plates (721) are slidably arranged on the assembly frame (72). The several adjustment plates (721) are respectively connected to several horizontal bars (73). A lead screw is rotatably installed on the assembly frame (72). A lifting plate is threaded onto the lead screw. Several adjustment slots are opened on the lifting plate. The several adjustment slots are radially distributed. Each of the adjustment plates (721) is fixed with a side block. The several side blocks slide in the several adjustment slots respectively.

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