Gear detection profiler based on image recognition

Abstract

This invention discloses a gear detection contour meter based on image recognition, belonging to the field of gear detection technology. It includes a base, a display host, and a detection head electrically connected to the display host for acquiring and identifying gear images. This invention uses a reciprocating drive mechanism as a single power source to drive a slider in reciprocating linear motion, simultaneously linking four actions: the detection head's movement, the automatic rotation of the gear to be detected, the automatic loading of the gear to be detected, and the automatic unloading of the finished gear. This eliminates the need for a separate rotary servo drive mechanism, dedicated loading and unloading fixtures, and a supporting collaborative control system required in existing equipment. This simplifies the mechanical structure and electrical control system of the equipment, significantly reducing manufacturing costs. Simultaneously, the purely mechanical linkage structure greatly reduces the difficulty of equipment maintenance and the failure rate, improving the long-term stability of equipment operation.

Description

Technical Field

[0001] This invention relates to a profilometer, and more particularly to a gear detection profilometer based on image recognition, belonging to the field of gear detection technology. Background Technology

[0002] Gears are the core basic components of mechanical transmission systems. The accuracy of their tooth profile and the integrity of their tooth surface forming directly determine the transmission smoothness, load-bearing capacity, and service life of the transmission system. Therefore, in the entire gear production process, it is necessary to conduct full inspection of tooth profile defects to ensure product quality compliance. With the rapid development of machine vision and image recognition technology, non-contact gear inspection profilers based on image recognition have gradually become a hot topic in industry research and application. These devices acquire optical images of gears through high-resolution industrial cameras and telecentric optical systems, and extract gear profile features based on image recognition algorithms to complete the automated detection of tooth profile defects and profile accuracy. This is the mainstream development direction in the current field of gear precision inspection.

[0003] However, in practical industrial applications, existing gear profilometers based on image recognition require a dedicated rotary control mechanism to rotate the gear workpiece in order to ensure complete imaging of all tooth surfaces around the circumference. In addition, the inspection process requires the use of special tooling to accurately clamp and position the workpiece, as well as to load, unload, and transfer it. This makes the entire inspection process and control system cumbersome and complex, affecting the inspection speed.

[0004] To address this issue, an image recognition-based gear detection profiler was designed. Summary of the Invention

[0005] The main objective of this invention is to provide a gear detection profiler based on image recognition, in order to solve the problems that profilers cannot achieve automatic rotation detection of gears with a single power source and that the loading, unloading, and detection processes are cumbersome and complex.

[0006] The objective of this invention can be achieved by adopting the following technical solution: A gear detection profiler based on image recognition includes a base, a display host, and a detection head electrically connected to the display host for acquiring and detecting gear images; A protective shell is fixed on the base along its length, and a slider is slidably provided inside the protective shell. A reciprocating drive mechanism is provided inside the protective shell to drive the slider to move back and forth along its length. An L-shaped rod is fixed between the bottom of the detection head and the slider, and a through groove is provided on the side of the protective shell for the L-shaped rod to slide. A support rod is fixed to the top of the slider, and a support plate is hinged to the top of the support rod. The support rod supports the support plate, and an annular plate with a supporting gear is rotatably mounted on the top of the support plate. The bottom of the tray is equipped with a rotating mechanism that cooperates with the protective shell, which is used to synchronously drive the annular plate to rotate when the slider moves; The top of the protective shell is equipped with a storage mechanism for stacking and storing gears, and the top of the slider is equipped with a traction mechanism that cooperates with the storage mechanism and the rotation mechanism. This mechanism is used to limit the gears to the top of the annular plate to complete the feeding when the slider is reset. The end of the protective shell away from the storage mechanism is equipped with a discharge mechanism that cooperates with the pallet, which is used to drive the pallet to tilt and discharge the material after the inspection is completed.

[0007] Preferably, the reciprocating drive mechanism includes a drive motor, a reciprocating lead screw, and a first guide rod; The drive motor is fixedly installed at the end of the housing, and the reciprocating screw is rotatably installed inside the housing along the length of the housing. The output end of the drive motor is coaxially and fixedly connected to the reciprocating screw. The first guide rod is arranged parallel to the reciprocating lead screw, the slider and the reciprocating lead screw are engaged in reciprocating rotation, and the slider and the first guide rod are engaged in sliding cooperation.

[0008] Preferably, the rotating mechanism includes a rotating rod, a transmission gear, a rack, a retaining ring, a first spring, a bonding plate, and a through hole; The rotating rod is vertically rotatably installed below the support plate. The bottom end of the rotating rod is rotatably connected to the traction mechanism, and a transmission gear is coaxially fixed in the middle of the rotating rod. The rack is fixed to the inner wall of the protective shell along its length, and the transmission gear meshes with the rack. The fixing ring is coaxially fixed in the middle position of the rotating rod, and the bonding plate is slidably sleeved on the outside of the rotating rod. The inner hole of the bonding plate is adapted to the shape of the top end of the rotating rod. Both are rectangular structures. The support plate has a through hole for the bonding plate to pass through. The top surface of the bonding plate is in contact with the bottom surface of the ring plate. The first spring is sleeved on the outside of the rotating rod, and the two ends of the first spring abut against the bottom surface of the bonding plate and the top surface of the fixing ring, respectively.

[0009] Preferably, the storage mechanism includes a storage slot, a release port, a groove, a support plate, a fixing block, a second linear groove, a second guide rod, and a third spring; The storage slot is fixed to the top surface of the protective shell. A release port for a single gear to be tested is provided on the bottom side of the storage slot near the slider. A groove is provided on the bottom of the storage slot corresponding to the end face of the protective shell. The support plate is horizontally slidably installed in the groove, and the top surface of the support plate is flush with the top surface of the support plate and the annular plate. The fixing block is fixed to the inner wall of the groove, and the support plate has a second linear groove on both sides along its length. The fixing block slides inside the second linear groove. The second guide rod is fixed in the second linear groove, and the second guide rod passes through the fixed block and slides with it. The third spring is sleeved on the outside of the second guide rod, and the two ends of the third spring abut against the fixed block and the inner end of the second linear groove, respectively, to drive the support plate to horizontally reset downwards in the storage groove.

[0010] Preferably, the traction mechanism includes a sliding sleeve, a rectangular rod, a second spring, a first guide block, a first linear groove, a rotary guide groove, a one-way limiting plate, a tension spring, and an insert block; A rectangular rod is vertically fixed to the top surface of the slider, and a sliding sleeve is slidably fitted on the outside of the rectangular rod. The bottom end of the rotating rod is rotatably connected to the top of the sliding sleeve through a bearing. The second spring is sleeved on the outside of the rectangular rod, and the two ends of the second spring abut against the bottom surface of the sliding sleeve and the top surface of the slider, respectively, to drive the sliding sleeve to slide along the rectangular rod; The insert is coaxially fixed to the top of the rotating rod. The top of the insert protrudes upward from the top surface of the annular plate. The top of the insert is conical and the bottom is cylindrical. The cylindrical section of the insert is adapted to the inner ring of the gear to be tested. The inner wall of the protective shell is provided with a first linear groove along its length, and a rotary guide groove is provided at one end of the first linear groove near the storage groove. The rotary guide groove and the first linear groove are interconnected. The rotary guide groove is a closed groove in the shape of a square. The top channel of the rotary guide groove is on the same horizontal plane as the first linear groove, and the bottom channel of the rotary guide groove is provided with an inclined guide edge at the connection point with the first linear groove. The first guide block is fixed to the side of the sliding sleeve, and the first guide block slides within the first linear groove and the rotary guide groove; A one-way limiting plate is hinged to a groove wall protrusion in the middle of the rotary guide groove. The free end of the one-way limiting plate faces the first linear groove and is in contact with the bottom surface of the top channel of the rotary guide groove. A tension spring is connected between the one-way limiting plate and the groove wall protrusion in the middle of the rotary guide groove to guide the first guide block into the bottom channel of the rotary guide groove along the inclined guide edge and slide horizontally out from the top channel of the rotary guide groove.

[0011] Preferably, the discharge mechanism includes a guide trough, a second guide block, and a downward guide trough; The guide channel is located on the inner wall of the casing. The end of the guide channel closer to the storage mechanism is a horizontal section, and the end of the guide channel farther from the storage mechanism is a downwardly sloping discharge section. The second guide block is fixed to the side of the tray, and the second guide block is slidably fitted in the guide groove; The downward guide groove is located at the end of the first linear groove away from the rotary guide groove, and is used to drive the sliding sleeve to move downward along the rectangular rod, thereby causing the insert block to be pulled out from the inner cavity of the gear after the test is completed.

[0012] Preferably, the inner wall of the protective shell is symmetrically provided with support strips, which are arranged along the length of the protective shell. The top of the support strip slides against the bottom surface of the tray to provide horizontal support for the tray.

[0013] Preferably, the top surface of the tray is provided with an annular groove, and the side of the annular plate is fixed with a sliding protrusion that is adapted to slide in the annular groove. The annular plate is rotatably connected to the tray through the sliding protrusion. The top surface of the annular plate is fixed with a wear-resistant pad that matches the end face of the gear to be tested, and the bottom surface of the annular plate is provided with anti-slip grooves in a ring array that fit with the top surface of the bonding plate.

[0014] Preferred: The inspection head includes a high-resolution industrial camera, a telecentric optical lens, and a ring light source; The high-resolution industrial camera is electrically connected to the display host. The telecentric optical lens is coaxially mounted on the lens end of the high-resolution industrial camera. The ring light source is coaxially fixed on the light-emitting end of the telecentric optical lens. The shooting direction of the detection head is horizontally oriented towards the tooth surface of the gear to be detected supported on the ring plate.

[0015] Preferably, the display host is fixedly installed at one end of the base. The display host has a built-in gear image recognition and detection module. The gear image recognition and detection module is used to extract contour features, identify missing tooth profile defects, and evaluate gear accuracy level from the gear images collected by the detection head.

[0016] The beneficial effects of this invention are as follows: This invention provides a gear detection profiler based on image recognition. By using a reciprocating drive mechanism as a single power source to drive the slider to perform reciprocating linear motion, it can simultaneously link four actions: detection head movement, automatic rotation of the gear to be detected, automatic loading of the gear to be detected, and automatic unloading of the finished gear. This eliminates the need for the independent rotary servo drive mechanism, dedicated loading and unloading fixtures, and supporting collaborative control system required by existing equipment. It simplifies the mechanical structure and electrical control system of the equipment, significantly reducing the manufacturing cost. At the same time, the pure mechanical linkage structure greatly reduces the difficulty of equipment operation and maintenance and the failure rate, and improves the long-term stability of equipment operation. The detection head is fixed to the slider by an L-shaped rod, so that the detection head moves linearly synchronously with the slider. At the same time, relying on the rotating mechanism composed of a rotating rod, transmission gear, rack, fixing ring, first spring, bonding plate, and through hole, the slider drives the support plate to move linearly. Through the meshing transmission of the transmission gear and rack, the ring plate and the gear to be detected on the top are automatically and uniformly rotated. This achieves complete synchronization between the detection movement of the detection head and the circumferential rotation of the gear to be detected. No additional rotation control mechanism is required. The complete imaging acquisition of all tooth surfaces of the gear can be completed in one go, shortening the inspection cycle of a single workpiece. The storage mechanism, consisting of a storage slot, support plate, and third spring, can stack gears to be tested in batches. At the same time, in conjunction with the transfer mechanism, consisting of a sliding sleeve, rectangular rod, insert block, and guide groove, the transfer mechanism can automatically drive the bottom gear of the storage mechanism to be tested through the release port to the outside for testing during the reset and movement of the slider after the test is completed. No manual assistance or special feeding equipment is required, realizing continuous automatic feeding of gears to be tested and improving the continuous operation capability and automation level of the equipment. By hinged to the support rod, and in conjunction with the second guide block on the side of the pallet and the guide groove on the inner side of the protective shell, as the slider moves the pallet to the end of the detection stroke and completes the full tooth surface detection, the second guide block slides along the lifting section of the guide groove, automatically causing the pallet to tilt downward around the hinge end, so that the detected gear is automatically discharged from the top of the pallet. Automatic unloading can be completed without the need for an additional unloading mechanism. The entire process of loading, detection, and unloading can be completed by only one reciprocating movement of the slider, without any unnecessary pauses, thus improving the overall detection efficiency. Attached Figure Description

[0017] Figure 1 This is a top view of the entire invention; Figure 2 This is a schematic side view of the inside of the protective casing of the present invention; Figure 3 This is a bottom view of the interior of the protective casing of the present invention; Figure 4 This is a cross-sectional view of the top structure of the slider of the present invention; Figure 5 This is a front view of the exploded top structure of the slider of the present invention; Figure 6 This is a bottom view of the exploded top structure of the slider of the present invention; Figure 7 This is a schematic diagram of the side plate structure of the protective shell of the present invention; Figure 8 This is a schematic diagram of the end plate structure of the protective shell of the present invention; Figure 9 This is an enlarged view of a partial structure of the side plate of the protective shell of the present invention.

[0018] In the picture: 1. Base; 2. Display host; 3. Slider; 4. Protective casing; 5. Reciprocating drive mechanism; 501. Drive motor; 502. Reciprocating lead screw; 503. First guide rod; 6. L-shaped rod; 7. Through groove; 8. Detection head; 9. Support rod; 10. Support plate; 11. Annular plate; 12. Rotating mechanism; 1201. Rotating rod; 1202. Transmission gear; 1203. Rack; 1204. Retaining ring; 1205. First spring; 1206. Adhesive plate; 1207. Through hole; 13. Transfer mechanism; 1301. Sliding sleeve; 1302. Rectangular rod; 1303. Second spring; 1304. First guide block; 1305. First linear groove; 1306. Rotary guide groove; 1307. One-way limiting plate; 1308. Tension spring; 1309. Insertion block; 14. Storage mechanism; 1401. Storage slot; 1402. Release port; 1403. Groove; 1404. Support plate; 1405. Fixing block; 1406. Second linear groove; 1407. Second guide rod; 1408. Third spring; 15. Guide groove; 16. Second guide block. Detailed Implementation

[0019] To enable those skilled in the art to more clearly understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0020] Example 1 like Figures 1-9 As shown, this embodiment provides a gear detection profiler based on image recognition, including a base 1, a display host 2, and a detection head 8 electrically connected to the display host 2 for acquiring and detecting gear images; A protective shell 4 is fixed on the base 1 along its length direction. A slider 3 is slidably provided inside the protective shell 4. A reciprocating drive mechanism 5 is provided inside the protective shell 4 to drive the slider 3 to move back and forth along its length direction. An L-shaped rod 6 is fixed between the bottom of the detection head 8 and the slider 3, and a through groove 7 for the L-shaped rod 6 to slide is provided on the side of the protective shell 4; A support rod 9 is fixed to the top of the slider 3. A support plate 10 is hinged to the top of the support rod 9, and the support rod 9 supports the support plate 10. A ring plate 11 with a supporting gear is rotatably provided on the top of the support plate 10. The bottom of the support plate 10 is provided with a rotating mechanism 12 that cooperates with the protective shell 4, which is used to synchronously drive the annular plate 11 to rotate when the slider 3 moves; The top end of the protective shell 4 is provided with a storage mechanism 14 for stacking and storing gears, and the top of the slider 3 is provided with a traction mechanism 13 that cooperates with the storage mechanism 14 and the rotating mechanism 12. When the slider 3 is reset, the gears are limited to the top of the annular plate 11 to complete the feeding. The end of the protective shell 4 away from the storage mechanism 14 is provided with a discharge mechanism that cooperates with the tray 10, which is used to drive the tray 10 to tilt and discharge material after the detection is completed.

[0021] During testing, when the reciprocating drive mechanism 5 controls the slider 3 to move linearly along the protective shell 4, the L-shaped rod 6 drives the detection head 8 to move synchronously along the through groove 7, keeping the detection head 8 and the slider 3 in a fixed relative position. This ensures that the imaging position of the detection head 8 matches the position of the gear to be tested throughout the testing process. At the same time, the slider 3 drives the support plate 10 to move linearly synchronously through the support rod 9. During the movement of the support plate 10, the rotating mechanism 12 cooperates with the protective shell 4 to synchronously drive the annular plate 11 on the top of the support plate 10 to rotate. This causes the gear to be tested supported on the annular plate 11 to rotate synchronously and uniformly with the annular plate 11. This allows the detection head 8 to simultaneously complete the image acquisition of the entire tooth surface of the gear to be tested during its linear movement, without the need for an additional independent rotating drive mechanism. After the inspection is completed, the slider 3 continues to move towards the discharge mechanism. The discharge mechanism cooperates with the tray 10 to drive the tray 10 to tilt around the hinge end of the support rod 9, so that the gear that has completed the inspection will automatically slide off the ring plate 11 and be discharged, thus completing the automatic unloading. When slider 3 completes its detection stroke and moves in the reverse direction toward storage mechanism 14, the tray 10 first resets, then passes through the initial position for the first time, and then enters the reverse movement. With the cooperation of the traction mechanism 13 and storage mechanism 14, the tray 10 enters the bottom of storage mechanism 14, automatically limiting the gears to be tested stacked in storage mechanism 14 to the annular plate 11, completing the automatic feeding of the gears to be tested without manual assistance or independent feeding equipment. Then, the gears to be tested are dragged to the outside of storage mechanism 14 to the initial detection position. The reset movement of slider 3 must eventually return to the initial detection starting position, and the movement direction is consistent with that during the initial detection. During the reverse reset process, when slider 3 passes through the initial detection starting position for the first time, the movement direction is opposite to the initial detection direction. Only when slider 3 pulls the gears to be tested out of storage mechanism 14 and returns to that position is the full reset process completed, returning to the initial standby detection starting position. The entire machine can simultaneously complete the entire process of workpiece unloading, workpiece loading, workpiece rotation and full-circumference tooth surface image acquisition and detection by the reciprocating linear movement of slider 3. It realizes the linkage of multiple mechanisms driven by a single power source, simplifies the equipment structure and detection process, and improves gear detection efficiency.

[0022] Example 2 The solution in Example 1 will be further described below with reference to its specific working method. In this embodiment, the reciprocating drive mechanism 5 includes a drive motor 501, a reciprocating lead screw 502, and a first guide rod 503; The drive motor 501 is fixedly installed at the end of the housing 4, and the reciprocating screw 502 is rotatably installed inside the housing 4 along the length of the housing 4. The output end of the drive motor 501 is coaxially and fixedly connected to the reciprocating screw 502. The first guide rod 503 is arranged parallel to the reciprocating lead screw 502, the slider 3 reciprocates with the reciprocating lead screw 502, and the slider 3 slides with the first guide rod 503.

[0023] After receiving the control command from the display host 2, the drive motor 501 starts and drives the reciprocating screw 502 to rotate at a constant speed around its own axis. When the reciprocating screw 502 rotates, it drives the slider 3 to move linearly along the axis of the reciprocating screw 502 through the thread transmission. The first guide rod 503 provides guidance and limit for the movement of the slider 3, restricting the degree of freedom of the slider 3 with the rotation of the reciprocating screw 502, and ensuring that the slider 3 can only make smooth linear reciprocating movement along the axis of the first guide rod 503.

[0024] In this embodiment, the rotating mechanism 12 includes a rotating rod 1201, a transmission gear 1202, a rack 1203, a fixing ring 1204, a first spring 1205, a bonding plate 1206, and a through hole 1207; The rotating rod 1201 is vertically rotatably installed below the support plate 10. The bottom end of the rotating rod 1201 is rotatably connected to the traction mechanism 13. The transmission gear 1202 is coaxially fixed in the middle of the rotating rod 1201. The rack 1203 is fixed to the inner wall of the protective shell 4 along the length of the protective shell 4, and the transmission gear 1202 meshes with the rack 1203. The fixing ring 1204 is coaxially fixed at the middle position of the rotating rod 1201, providing installation limit for the first spring 1205 and ensuring stable output of the elastic thrust of the first spring 1205. The bonding plate 1206 is slidably sleeved on the outside of the rotating rod 1201. The inner hole of the bonding plate 1206 is adapted to the shape of the top end of the rotating rod 1201. Both are rectangular structures. The support plate 10 has a through hole 1207 for the bonding plate 1206 to pass through. The top surface of the bonding plate 1206 is attached to the bottom surface of the annular plate 11. The first spring 1205 is sleeved on the outside of the rotating rod 1201, and the two ends of the first spring 1205 abut against the bottom surface of the bonding plate 1206 and the top surface of the fixing ring 1204, respectively.

[0025] When the slider 3 drives the support plate 10 to move linearly along the length of the protective shell 4, the support plate 10 drives the transmission gear 1202 to move linearly synchronously through the rotating rod 1201. Since the transmission gear 1202 is meshed with the rack 1203 fixed to the inner wall of the protective shell 4, the transmission gear 1202 rotates around its own axis while moving linearly, and then drives the bonding plate 1206 to rotate through the rotating rod 1201. The bonding plate 1206 is attached to the bottom of the annular plate 11. By using the friction between the bonding plate 1206 and the annular plate 11, the annular plate 11 is controlled to rotate synchronously, so that the gear to be tested supported on the annular plate 11 rotates at a constant speed with the annular plate 11. During the linear movement of the detection head 8, the gear to be tested completes a full circumference rotation synchronously, and the image acquisition of all tooth surfaces is completed at one time. Meanwhile, the first spring 1205 continuously applies an upward elastic force to the bonding plate 1206, causing the bonding plate 1206 to slide upward along the through hole 1207 and fit tightly against the bottom surface of the annular plate 11. Through the friction between the bonding plate 1206 and the annular plate 11, the rotational torque of the rotating rod 1201 can be stably transmitted to the annular plate 11, avoiding slippage between the annular plate 11 and the rotating rod 1201, and ensuring that the rotation angle of the gear to be tested and the moving distance of the slider 3 are accurately matched.

[0026] In this embodiment, the storage mechanism 14 includes a storage slot 1401, a release port 1402, a groove 1403, a support plate 1404, a fixing block 1405, a second linear groove 1406, a second guide rod 1407, and a third spring 1408. The storage slot 1401 is fixed to the top surface of the protective shell 4. The gears to be tested are coaxially stacked in the storage slot 1401. The inner cavity of the storage slot 1401 forms a limit on the outer circle of the gears to be tested, ensuring that the stacked gears to be tested remain coaxial. The bottom of the storage slot 1401 near the slider 3 has a release port 1402 for a single gear to be tested to pass through. The bottom of the storage slot 1401 has a groove 1403 corresponding to the end face of the protective shell 4. The support plate 1404 is horizontally slidably installed in the groove 1403, and the top surface of the support plate 1404 is flush with the top surface of the support plate 10 and the annular plate 11. Under the elastic thrust of the third spring 1408, the support plate 1404 is held at the bottom of the storage groove 1401, providing bottom support for the stacked gears to be tested, so that the bottommost gear to be tested is flush with the release port 1402. The fixing block 1405 is fixed to the inner wall of the groove 1403. The support plate 1404 has a second linear groove 1406 on both sides along its length. The fixing block 1405 is slidably fitted inside the second linear groove 1406. The fixing block 1405 restricts the sliding stroke of the support plate 1404 through the second linear groove 1406 to prevent the support plate 1404 from slipping out of the groove 1403. The second guide rod 1407 is fixed in the second linear groove 1406, and the second guide rod 1407 passes through the fixing block 1405 and slides with it. The third spring 1408 is sleeved on the outside of the second guide rod 1407. The two ends of the third spring 1408 abut against the inner ends of the fixing block 1405 and the second linear groove 1406, respectively, and are used to drive the support plate 1404 to horizontally reset below the storage groove 1401.

[0027] When the tray 10 moves from the release port 1402 to the bottom of the storage slot 1401, the tray 10 applies a horizontal thrust to the support plate 1404, pushing the support plate 1404 to slide along the groove 1403 outwards from the storage slot 1401. At this time, the second guide rod 1407 moves synchronously with the support plate 1404, the fixing block 1405 slides relative to the second linear groove 1406, and the third spring 1408 is compressed. After the bottommost gear to be tested falls onto the annular plate 11 at the top of the tray 10, the traction mechanism 13 will then... When the gear to be tested is stopped, when the support plate 10 slides out again, it can drive a group of gears to be tested to move together. At the same time, the elastic restoring force of the third spring 1408 pushes the support plate 1404 to slide and reset along the groove 1403 into the storage groove 1401, and extend back into the bottom of the storage groove 1401 to support the upper stack of gears to be tested, so that the next gear to be tested falls to a position flush with the release port 1402, completing the preparation for the discharge of a single gear. This cycle is used to realize the continuous single discharge of gears to be tested.

[0028] In this embodiment, the traction mechanism 13 includes a sliding sleeve 1301, a rectangular rod 1302, a second spring 1303, a first guide block 1304, a first linear groove 1305, a rotary guide groove 1306, a one-way limiting plate 1307, a tension spring 1308, and an insert block 1309. The rectangular rod 1302 is vertically fixed to the top surface of the slider 3, and the sliding sleeve 1301 is slidably sleeved on the outside of the rectangular rod 1302. The bottom end of the rotating rod 1201 is rotatably connected to the top of the sliding sleeve 1301 through a bearing. The second spring 1303 is sleeved on the outside of the rectangular rod 1302, and the two ends of the second spring 1303 abut against the bottom surface of the sliding sleeve 1301 and the top surface of the slider 3 respectively, for driving the sliding sleeve 1301 to slide along the rectangular rod 1302. The insert 1309 is coaxially inserted and fixed to the top of the rotating rod 1201. The top of the insert 1309 protrudes upward from the top surface of the annular plate 11. The top of the insert 1309 is conical and the bottom is cylindrical. The cylindrical section of the insert 1309 is adapted to the inner ring of the gear to be tested. The inner sidewall of the protective shell 4 is provided with a first linear groove 1305 along its length direction. A rotary guide groove 1306 is provided at one end of the first linear groove 1305 near the storage groove 1401. The rotary guide groove 1306 is in communication with the first linear groove 1305. The rotary guide groove 1306 is a closed groove in the shape of a square. The top channel of the rotary guide groove 1306 is located on the same horizontal plane as the first linear groove 1305. An inclined guide edge is provided at the connection between the bottom channel of the rotary guide groove 1306 and the first linear groove 1305. The first guide block 1304 is fixed to the side of the sliding sleeve 1301, and the first guide block 1304 slides in the first linear groove 1305 and the rotary guide groove 1306. A one-way limiting plate 1307 is hinged to a groove wall protrusion in the middle of the rotary guide groove 1306. The free end of the one-way limiting plate 1307 faces the first linear groove 1305 and is in contact with the bottom surface of the top channel of the rotary guide groove 1306. A tension spring 1308 is connected between the one-way limiting plate 1307 and the groove wall protrusion in the middle of the rotary guide groove 1306 to guide the first guide block 1304 to enter the bottom channel of the rotary guide groove 1306 along the inclined guide edge and slide horizontally out of the top channel of the rotary guide groove 1306.

[0029] After the slider 3 completes the detection operation, it moves back to the storage mechanism 14. When the first guide block 1304 moves with the sliding sleeve 1301 to the point where the first linear groove 1305 and the rotary guide groove 1306 are connected, the one-way limiting plate 1307 blocks the top channel entrance of the rotary guide groove 1306 under the pulling force of the tension spring 1308, and guides the first guide block 1304 to enter the bottom channel of the rotary guide groove 1306 along the inclined guide edge. When the first guide block 1304 slides down along the inclined guide edge, it drives the sliding sleeve 1301 to slide down along the rectangular rod 1302. The second spring 1303 is compressed. At the same time, the sliding sleeve 1301 drives the insert block 1309 to move down synchronously through the rotating rod 1201, so that the top of the insert block 1309 drops to a position flush with the top surface of the annular plate 11, so as to prevent the insert block 1309 from affecting the annular plate 11 from entering the storage slot 1401. When the first guide block 1304 moves along the bottom channel of the rotary guide groove 1306 to the end vertical channel, the support plate 10 is fully inserted into the bottom of the storage groove 1401. At the same time, the annular plate 11 is directly below the gear to be tested. The elastic restoring force of the second spring 1303 pushes the sliding sleeve 1301 to slide upward along the rectangular rod 1302, causing the insertion block 1309 to move upward, so that the top of the insertion block 1309 is inserted into the inner ring of the bottommost gear to be tested in the storage groove 1401. The conical structure enables automatic centering during insertion, and the cylindrical section fits tightly with the inner ring of the gear to complete the positioning. After that, the slider 3 moves away from the storage mechanism 14, the first guide block 1304 slides out along the top channel of the rotary guide groove 1306 and re-enters the first linear groove 1305. The insertion block 1309 moves synchronously with the slider 3, pulling the gear to be tested out from the release port 1402 until the gear to be tested is completely removed from the storage groove 1401, completing the automatic feeding of the gear to be tested. The one-way limiting plate 1307 has a one-way conduction structure. When the first guide block 1304 slides from the top channel of the rotary guide groove 1306 to the first linear groove 1305, it can push the one-way limiting plate 1307 to swing downward and smoothly enter the first linear groove 1305. After the first guide block 1304 passes, the tension spring 1308 pulls the one-way limiting plate 1307 to reset and block the top channel entrance of the rotary guide groove 1306 again, ensuring that the first guide block 1304 can smoothly enter the bottom channel of the rotary guide groove 1306 in the next cycle, and complete the lifting and lowering action of the insert block 1309 and the gear pulling action.

[0030] In this embodiment, the discharge mechanism includes a guide groove 15, a second guide block 16, and a downward guide groove; The guide groove 15 is formed on the inner wall of the protective shell 4. The end of the guide groove 15 near the storage mechanism 14 is a horizontal section, and the end of the guide groove 15 away from the storage mechanism 14 is a downwardly inclined discharge section. The second guide block 16 is fixed to the side of the support plate 10, and the second guide block 16 is slidably fitted in the guide groove 15; The downward guide groove is formed at the end of the first linear groove 1305 away from the rotary guide groove 1306, and is used to drive the sliding sleeve 1301 to move downward along the rectangular rod 1302, thereby driving the insert block 1309 to be pulled out from the inner cavity of the gear after the test is completed.

[0031] After the image of the entire tooth surface of the gear to be inspected is acquired, before the slider 3 moves to the end of the inspection stroke, the first guide block 1304 moves with the slider 3 to the lower guide groove at the end of the first linear groove 1305. The first guide block 1304 slides down along the lower guide groove, driving the sliding sleeve 1301 to move down along the rectangular rod 1302. Then, through the rotating rod 1201, it drives the insert block 1309 to move down synchronously, so that the insert block 1309 is completely pulled out from the inner ring of the gear, releasing the limit on the gear, ensuring that the gear can slide down smoothly and avoid jamming. After the gear is released from its limit, the slider 3 continues to move. The second guide block 16 enters the downwardly inclined discharge section from the horizontal section of the guide groove 15. When the second guide block 16 slides down along the discharge section, it drives the end of the support plate 10 to tilt downward around the hinge end of the support rod 9, so that the annular plate 11 tilts downward synchronously. The gear that has been detected on the annular plate 11 automatically slides down along the surface of the inclined annular plate 11 under the action of gravity, thus completing the automatic unloading. When the slider 3 moves back to the storage mechanism 14, the second guide block 16 re-enters the horizontal section from the discharge section of the guide groove 15, causing the tray 10 to swing upward around the hinge end and return to the horizontal state. Then, the first guide block 1304 re-enters the horizontal section of the first linear groove 1305 from the lower guide groove, and the second spring 1303 pushes the sliding sleeve 1301 upward to return to the horizontal state, causing the insert block 1309 to rise to the high position again, in preparation for the next feeding.

[0032] In this embodiment, the inner sidewall of the protective shell 4 is symmetrically provided with support bars. The support bars are arranged along the length of the protective shell 4. The top of the support bars slides against the bottom surface of the support plate 10 to form horizontal support for the support plate 10.

[0033] The support bar and support rod 9 together provide multi-point support for the pallet 10, preventing the pallet 10 from swaying or tilting due to uneven force during movement and detection. This ensures that the pallet 10 maintains a stable horizontal state throughout the detection stroke, thereby ensuring the positional accuracy of the gear to be detected on the ring plate 11 and improving the clarity and detection accuracy of the image acquisition by the detection head 8.

[0034] In this embodiment, the top surface of the support plate 10 is provided with an annular groove, and the side of the annular plate 11 is fixed with a sliding protrusion that is adapted to slide with the annular groove. The annular plate 11 is rotatably connected to the support plate 10 through the sliding protrusion, ensuring that the annular plate 11 does not experience radial wobble or axial runout during rotation, ensuring the coaxiality of the gear under test when rotating with the annular plate 11, and improving the accuracy of tooth surface image acquisition. The top surface of the annular plate 11 is fixed with a wear-resistant pad that matches the end face of the gear to be tested. This prevents hard friction between the end face of the gear to be tested and the annular plate 11, thus preventing scratches on the gear end face. At the same time, it increases the friction between the gear and the end face, ensuring that the gear rotates synchronously with the annular plate 11 without relative slippage. The bottom surface of the annular plate 11 has anti-slip grooves arranged in a ring array that fit against the top surface of the bonding plate 1206. This improves the stability of the rotation torque transmitted from the rotating rod 1201 to the annular plate 11, avoids the problem of step loss or slippage during the rotation of the annular plate 11, and ensures accurate matching between the gear rotation angle and the sliding distance of the slider 3.

[0035] In this embodiment, the detection head 8 includes a high-resolution industrial camera, a telecentric optical lens, and a ring light source; A high-resolution industrial camera is electrically connected to the display host 2. The high-resolution industrial camera is used to acquire high-definition optical images of the tooth surface of the gear to be inspected and transmits the image data to the display host 2 for processing in real time. A telecentric optical lens is coaxially mounted on the lens end of the high-resolution industrial camera. The telecentric optical lens can eliminate perspective distortion caused by the axial position offset of the gear, ensure that the imaging ratio of the tooth surface at different positions is consistent, and improve the accuracy of tooth surface contour size measurement. A ring light source is coaxially fixed at the light-emitting end of the telecentric optical lens. The ring light source provides uniform and stable illumination for tooth surface image acquisition, eliminates tooth surface reflection and shadow, and enables clear imaging of tooth surface contour and missing line defects, thereby improving the accuracy of subsequent image recognition and defect detection. The shooting direction of the detection head 8 is horizontally oriented towards the tooth surface of the gear to be inspected supported on the ring plate 11.

[0036] In this embodiment, the display host 2 is fixedly installed at one end of the base 1. The display host 2 has a built-in gear image recognition and detection module. The gear image recognition and detection module is used to extract contour features, identify missing tooth profile defects, and evaluate gear accuracy level from the gear images collected by the detection head 8.

[0037] On one hand, the display host 2 sends control commands to the drive motor 501 to control the moving speed, stroke, and start / stop of the slider 3, realizing the linkage timing control of all mechanisms of the whole machine; on the other hand, through the built-in gear image recognition and detection module, it processes the gear images transmitted in real time by the detection head 8, completes the accurate extraction of gear tooth surface contour features through image preprocessing and sub-pixel edge extraction algorithms, and then identifies tooth profile defects through feature comparison algorithms. At the same time, according to the gear precision standards, it completes the calculation of precision indicators such as tooth profile deviation and tooth pitch deviation and the evaluation of gear precision level, and finally generates a test report and displays it in real time, realizing the fully automated processing and result output of gear inspection.

[0038] The solutions in Embodiment 1 and Embodiment 2 will be further described below with reference to their specific working methods. Initial standby phase After the machine is powered on and initialized, it enters the initial standby state. The slider 3 stays in the detection start position of the protective shell 4 near the storage mechanism 14. The first guide block 1304 on the side of the sliding sleeve 1301 is in the channel of the first linear groove 1305 near the end of the rotary guide groove 1306. The second spring 1303 pushes the sliding sleeve 1301 to keep it in a high position along the rectangular rod 1302. The insert block 1309 at the top of the rotating rod 1201 is simultaneously in a high position, and its top protrudes upward from the top surface of the annular plate 11. The support plate 10 is kept in a horizontal state under the joint support of the support rod 9 and the inner support strip of the protective shell 4. The second guide block 16 on the side of the support plate 10 is at the starting end of the horizontal section of the guide groove 15. The gears to be tested are coaxially stacked in the storage slot 1401 of the storage mechanism 14. The support plate 1404 lifts the stacked gears so that the bottom gear to be tested is flush with the release port 1402, completing the material preparation for the discharge of a single gear. The display host 2 is in a standby state, waiting for the detection start command.

[0039] Detection and imaging stage After the host computer 2 sends a start command, the drive motor 501 of the reciprocating drive mechanism 5 starts. Through the rotational transmission of the reciprocating lead screw 502, the slider 3 is driven to move in a uniform linear motion along the first guide rod 503 away from the storage mechanism 14. During this process, the slider 3 drives the detection head 8 to move synchronously along the through groove 7 on the side of the protective shell 4 through the L-shaped rod 6, so that the detection head 8 and the support plate 10 always maintain a fixed relative position, and the shooting direction is continuously horizontally aligned with the tooth surface of the gear to be tested supported on the annular plate 11.

[0040] Simultaneously, the slider 3 drives the support plate 10 to move synchronously in a straight line via the support rod 9. The transmission gear 1202 at the bottom of the support plate 10 moves synchronously with the rotating rod 1201, forming a meshing transmission with the rack 1203 fixed to the inner wall of the protective shell 4, converting the linear movement of the slider 3 into the uniform rotational motion of the rotating rod 1201. The first spring 1205 continuously pushes the bonding plate 1206 to fit tightly against the bottom surface of the annular plate 11, and through friction, the rotational torque of the rotating rod 1201 is stably transmitted to the annular plate 11, driving the gear to be tested to rotate synchronously at a uniform speed, realizing that the linear movement of the detection head 8 and the circumferential rotation of the gear are completely synchronized, and high-definition image acquisition of all tooth surfaces of the gear is completed in one go.

[0041] The tooth surface image acquired by the detection head 8 is transmitted to the display host 2 in real time. Its built-in gear image recognition and detection module simultaneously completes image preprocessing, tooth surface contour feature extraction, and tooth profile defect identification. At the same time, it calculates and grades core accuracy indicators such as tooth profile and tooth pitch according to gear accuracy standards, so as to realize the simultaneous completion of image acquisition and data processing.

[0042] Automatic feeding stage When the slider 3 moves to the end of the detection stroke, after the collection and detection processing of the entire tooth surface of the gear to be detected is completed, the first guide block 1304 first enters the downward guide groove at the end of the first linear groove 1305, driving the sliding sleeve 1301, the rotating rod 1201 and the insert block 1309 to move downward synchronously, so that the top of the insert block 1309 is completely pulled out from the inner ring of the gear after detection, completely releasing the limit on the gear and avoiding jamming during the unloading process.

[0043] Subsequently, slider 3 continues to move slightly, and second guide block 16 enters the downward-sloping discharge section from the horizontal section of guide groove 15, causing the free end of tray 10 to tilt downward around the hinge end of support rod 9. Annular plate 11 tilts downward simultaneously, and the gear that has been released from its limit slides automatically down along the top surface of annular plate 11 under the action of gravity, and the automatic unloading of the gear is completed after the detection is completed.

[0044] Reset and loading stage After automatic feeding is completed, the drive motor 501 continues to rotate in one direction. Through the helical reversing structure of the reciprocating screw 502, the slider 3 is driven to move linearly towards the storage mechanism 14 for reset. First, the second guide block 16 resets to the horizontal section along the guide groove 15, causing the tray 10 to swing upward and return to the horizontal state; at the same time, the first guide block 1304 returns from the lower guide groove to the horizontal section of the first linear groove 1305, and the second spring 1303 pushes the sliding sleeve 1301 and the insert block 1309 to reset upward to the high position.

[0045] When the slider 3 returns to a position close to the storage mechanism 14, the first guide block 1304 moves to the point where the first linear groove 1305 and the rotary guide groove 1306 are connected. Under the tension of the tension spring 1308, the one-way limiting plate 1307 blocks the top channel entrance of the rotary guide groove 1306, guiding the first guide block 1304 to enter the bottom channel of the rotary guide groove 1306 along the inclined guide edge. This causes the sliding sleeve 1301 and the insert block 1309 to move downwards synchronously, so that the top of the insert block 1309 is lowered to a position flush with the top surface of the annular plate 11, thus preventing interference with the tray 10 entering the bottom of the storage slot 1401.

[0046] When the first guide block 1304 moves to the end along the bottom channel, the support plate 10 is fully inserted into the bottom of the storage slot 1401, and the annular plate 11 is coaxially aligned with the bottommost gear to be tested in the storage slot 1401. At this time, the first guide block 1304 enters the end vertical channel of the rotary guide groove 1306, and the second spring 1303 pushes the sliding sleeve 1301 to slide upward and reset, driving the insert block 1309 to insert upward into the inner ring of the bottommost gear to be tested, completing the positioning and gripping of the gear. During the process of the support plate 10 entering the storage slot 1401, it simultaneously pushes the support plate 1404 to slide outward and compress the third spring 1408, making room for the gear to fall onto the top surface of the annular plate 11.

[0047] Subsequently, slider 3 moves away from storage mechanism 14, and first guide block 1304 slides out along the top channel of rotary guide groove 1306 and re-enters first linear groove 1305. Insert block 1309 moves synchronously with slider 3, smoothly pulling out the gear to be tested from release port 1402 after positioning. When the gear to be tested leaves storage groove 1401, the elastic restoring force of third spring 1408 pushes support plate 1404 to slide back to its original position, extending back into the bottom of storage groove 1401 to lift the gears stacked on top, so that the next gear to be tested falls to a position flush with release port 1402, completing the preparation for the next discharge. Slider 3 finally moves back to the initial detection starting position, and the gear to be tested is completely placed on the top surface of annular plate 11, completing the automatic feeding process.

[0048] The above description is merely a further 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 disclosed in the present invention, based on the technical solution and concept of the present invention, shall fall within the scope of protection of the present invention.

Claims

1. A gear detection profiler based on image recognition, comprising a base (1), a display host (2), and a detection head (8) electrically connected to the display host (2) for acquiring and detecting gear images; Its features are: A protective shell (4) is fixed on the base (1) along the length direction. A slider (3) is slidably provided inside the protective shell (4). A reciprocating drive mechanism (5) is provided inside the protective shell (4) to drive the slider (3) to move back and forth along its length direction. An L-shaped rod (6) is fixed between the bottom of the detection head (8) and the slider (3), and a through groove (7) for the L-shaped rod (6) to slide is provided on the side of the protective shell (4). The top of the slider (3) is fixed with a support rod (9), the top of the support rod (9) is hinged with a support plate (10), and the support rod (9) supports the support plate (10). The top of the support plate (10) is provided with a ring plate (11) that supports the gear. The bottom of the tray (10) is provided with a rotating mechanism (12) that cooperates with the protective shell (4) to synchronously drive the annular plate (11) to rotate when the slider (3) moves; The top end of the protective shell (4) is provided with a storage mechanism (14) for stacking and storing gears, and the top of the slider (3) is provided with a traction mechanism (13) that cooperates with the storage mechanism (14) and the rotating mechanism (12), which is used to limit the gears to the top of the ring plate (11) to complete the feeding when the slider (3) is reset; The end of the protective shell (4) away from the storage mechanism (14) is provided with a discharge mechanism that cooperates with the tray (10) to drive the tray (10) to tilt and discharge material after the detection is completed.

2. The gear detection contour instrument based on image recognition according to claim 1, characterized in that: The reciprocating drive mechanism (5) includes a drive motor (501), a reciprocating lead screw (502), and a first guide rod (503); The drive motor (501) is fixedly installed at the end of the housing (4), and the reciprocating screw (502) is rotatably installed inside the housing (4) along the length direction of the housing (4). The output end of the drive motor (501) is coaxially and fixedly connected to the reciprocating screw (502). The first guide rod (503) is arranged parallel to the reciprocating lead screw (502), the slider (3) reciprocates with the reciprocating lead screw (502), and the slider (3) slides with the first guide rod (503).

3. The gear detection contour instrument based on image recognition according to claim 1, characterized in that: The rotating mechanism (12) includes a rotating rod (1201), a transmission gear (1202), a rack (1203), a retaining ring (1204), a first spring (1205), a bonding plate (1206), and a through hole (1207). The rotating rod (1201) is vertically rotatably installed below the support plate (10). The bottom end of the rotating rod (1201) is rotatably connected to the traction mechanism (13). The middle part of the rotating rod (1201) is coaxially fixed with a transmission gear (1202). The rack (1203) is fixed to the inner wall of the protective shell (4) along the length direction of the protective shell (4), and the transmission gear (1202) meshes with the rack (1203); The fixing ring (1204) is coaxially fixed in the middle position of the rotating rod (1201). The bonding plate (1206) is slidably sleeved on the outside of the rotating rod (1201). The inner hole of the bonding plate (1206) is adapted to the shape of the top end of the rotating rod (1201). Both are rectangular structures. The support plate (10) has a through hole (1207) for the bonding plate (1206) to pass through. The top surface of the bonding plate (1206) is attached to the bottom surface of the ring plate (11). The first spring (1205) is sleeved on the outside of the rotating rod (1201), and the two ends of the first spring (1205) abut against the bottom surface of the bonding plate (1206) and the top surface of the fixing ring (1204), respectively.

4. A gear detection contour instrument based on image recognition according to claim 3, characterized in that: The storage mechanism (14) includes a storage slot (1401), a release port (1402), a groove (1403), a support plate (1404), a fixing block (1405), a second linear groove (1406), a second guide rod (1407), and a third spring (1408). The storage slot (1401) is fixed on the top surface of the protective shell (4). The bottom of the storage slot (1401) near the slider (3) is provided with a release port (1402) for a single gear to be tested to pass through. The bottom of the storage slot (1401) is provided with a groove (1403) corresponding to the end face of the protective shell (4). The support plate (1404) is horizontally slidably installed in the groove (1403), and the top surface of the support plate (1404) is flush with the top surface of the support plate (10) and the annular plate (11); The fixing block (1405) is fixed to the inner wall of the groove (1403), and the support plate (1404) has a second linear groove (1406) on both sides along its length direction. The fixing block (1405) slides inside the second linear groove (1406). The second guide rod (1407) is fixed in the second linear groove (1406), and the second guide rod (1407) passes through the fixing block (1405) and slides with it; The third spring (1408) is sleeved on the outside of the second guide rod (1407). The two ends of the third spring (1408) abut against the inner ends of the fixing block (1405) and the second linear groove (1406) respectively, and are used to drive the support plate (1404) to horizontally reset below the storage groove (1401).

5. A gear detection contour instrument based on image recognition according to claim 4, characterized in that: The traction mechanism (13) includes a sliding sleeve (1301), a rectangular rod (1302), a second spring (1303), a first guide block (1304), a first linear groove (1305), a rotary guide groove (1306), a one-way limiting plate (1307), a tension spring (1308), and an insert block (1309). The rectangular rod (1302) is vertically fixed on the top surface of the slider (3), and the sliding sleeve (1301) is slidably sleeved on the outside of the rectangular rod (1302). The bottom end of the rotating rod (1201) is rotatably connected to the top of the sliding sleeve (1301) through a bearing. The second spring (1303) is sleeved on the outside of the rectangular rod (1302), and the two ends of the second spring (1303) abut against the bottom surface of the sliding sleeve (1301) and the top surface of the slider (3) respectively, for driving the sliding sleeve (1301) to slide along the rectangular rod (1302); The insert (1309) is coaxially inserted and fixed to the top of the rotating rod (1201). The top of the insert (1309) protrudes upward from the top surface of the annular plate (11). The top of the insert (1309) is conical and the bottom is cylindrical. The cylindrical section of the insert (1309) is adapted to the inner ring of the gear to be tested. The inner sidewall of the protective shell (4) is provided with a first linear groove (1305) along its length direction. A rotary guide groove (1306) is provided at one end of the first linear groove (1305) near the storage groove (1401). The rotary guide groove (1306) and the first linear groove (1305) are interconnected. The rotary guide groove (1306) is a closed groove in the shape of a square. The top channel of the rotary guide groove (1306) and the first linear groove (1305) are located on the same horizontal plane. The bottom channel of the rotary guide groove (1306) and the first linear groove (1305) are provided with an inclined guide edge at the connection point. The first guide block (1304) is fixed to the side of the sliding sleeve (1301), and the first guide block (1304) slides in the first linear groove (1305) and the rotary guide groove (1306); A one-way limiting plate (1307) is hinged to a groove wall protrusion in the middle of the rotary guide groove (1306). The free end of the one-way limiting plate (1307) faces the first linear groove (1305) and is in contact with the bottom surface of the top channel of the rotary guide groove (1306). A tension spring (1308) is connected between the one-way limiting plate (1307) and the groove wall protrusion in the middle of the rotary guide groove (1306) to guide the first guide block (1304) to enter the bottom channel of the rotary guide groove (1306) along the inclined guide edge and slide horizontally out from the top channel of the rotary guide groove (1306).

6. A gear detection contour instrument based on image recognition according to claim 5, characterized in that: The material discharge mechanism includes a guide trough (15), a second guide block (16), and a downward guide trough; The guide groove (15) is opened on the inner wall of the protective shell (4). The end of the guide groove (15) near the storage mechanism (14) is a horizontal section, and the end of the guide groove (15) away from the storage mechanism (14) is a downward sloping discharge section. The second guide block (16) is fixed to the side of the tray (10), and the second guide block (16) is slidably fitted in the guide groove (15); The downward guide groove is opened at the end of the first linear groove (1305) away from the rotary guide groove (1306) to drive the sliding sleeve (1301) to move downward along the rectangular rod (1302) and drive the insert block (1309) to be pulled out from the inner cavity of the gear after the test is completed.

7. A gear detection contour instrument based on image recognition according to claim 1, characterized in that: Support bars are symmetrically arranged on the inner sidewall of the protective shell (4). The support bars are arranged along the length of the protective shell (4). The top of the support bar slides against the bottom surface of the tray (10) to form a horizontal support for the tray (10).

8. A gear detection contour instrument based on image recognition according to claim 1, characterized in that: The top surface of the tray (10) is provided with an annular groove, and the side of the annular plate (11) is fixed with a sliding protrusion that is adapted to slide in the annular groove. The annular plate (11) is rotatably connected to the tray (10) through the sliding protrusion. The top surface of the annular plate (11) is fixed with a wear-resistant pad that is compatible with the end face of the gear to be tested, and the bottom surface of the annular plate (11) is provided with anti-slip grooves in an annular array that fit with the top surface of the bonding plate (1206).

9. A gear detection contour instrument based on image recognition according to claim 1, characterized in that: The detection head (8) includes a high-resolution industrial camera, a telecentric optical lens, and a ring light source; The high-resolution industrial camera is electrically connected to the display host (2). The telecentric optical lens is coaxially mounted on the lens end of the high-resolution industrial camera. The ring light source is coaxially fixed on the light-emitting end of the telecentric optical lens. The shooting direction of the detection head (8) is horizontally oriented towards the tooth surface of the gear to be tested supported on the ring plate (11).

10. A gear detection profiler based on image recognition according to claim 1, characterized in that: The display host (2) is fixedly installed at one end of the base (1). The display host (2) has a built-in gear image recognition and detection module. The gear image recognition and detection module is used to extract contour features, identify missing tooth profile defects, and evaluate gear accuracy level from the gear images collected by the detection head (8).

Images