Gear detection device

Abstract

The present invention belongs to the technical field of gear detection, and specifically is a gear detection device, comprising: a workbench; a gear body; by using the workbench plane as a reference plane and the workbench center as a coordinate origin to establish a coordinate system, turning on a first motor to drive a reciprocating screw to rotate, the reciprocating screw drives a moving block to move, the moving block drives a first infrared scanner to reciprocate, the first infrared scanner reciprocates to scan the gear body, a controller controls a computer program, the computer program controls a guide rail to gradually drive a sliding frame to move, until the gear body is scanned, the first infrared scanner transmits the scanning results of the contour of the gear body and the hole position and size parameters to the computer program through an optical signal to establish a model, and compares it with a standard gear. If the errors are all within the standard range, the detection result is passed, and if there is an error that is not within the standard range, the detection result is not passed; after comprehensive detection of the gear body, the detection accuracy is improved and the hidden danger of scratches is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of gear detection, in particular to a gear detection device. Background Art

[0002] As a transmission machinery part, gears have certain standard requirements for size, hardness and quality. Therefore, after the gears are processed, they usually need to be measured. The measurement of gear parts usually requires testing their inner diameter, outer diameter, tooth teeth and other dimensions. Gears can only be used if the dimensional error is within the standard range. Gear detection usually uses a gear detection device.

[0003] A Chinese patent with the publication number CN111735400A discloses a gear testing platform, including a workbench, a first detection mechanism for detecting the height of the upper end surface of the gear to be tested, a second detection mechanism for detecting the height of the lower end surface of the gear to be tested, a third detection mechanism for detecting the inner diameter of the gear to be tested, and a fourth detection mechanism for detecting the outer diameter of the gear to be tested; when the gear to be tested is driven to rotate by the driving mechanism, the first detection mechanism, the second detection mechanism, and the third detection mechanism are used to obtain the measurement values ​​of the upper surface, the lower surface, and the gear hole of the gear to be tested in the dynamic state, and the fourth detection mechanism is used to obtain the external tooth parameters of the gear to be tested in the static state. Among them, the driving mechanism may include a motor, a driving gear, and a turntable, the turntable has an external tooth structure that cooperates with the driving gear, and the motor drives the turntable through the driving gear. The turntable preferably has a coupling structure that engages with the bottom periphery of the gear to be tested, and while supporting the gear to be tested, the gear to be tested and the turntable are driven to rotate together through the coupling structure. Due to the provision of an error-proofing device, the dynamic detection mechanism and the static detection mechanism of the gear detection platform operate separately without interfering with each other, thereby realizing an efficient and convenient gear measurement solution with a high degree of integration.

[0004] In the above technology, the parameters of the gear are measured efficiently and conveniently through the cooperation of the first detection mechanism, the second detection mechanism, the third detection mechanism and the fourth detection mechanism. However, during the processing, some processing debris is clamped in the tooth groove and is not easy to fall off. During the detection, the external tooth measuring contact contacts the debris and is stuck in the tooth groove, causing the external tooth measuring contact to be scratched and damaged, thereby affecting the detection of the gear; the third contact can be used to measure the parameters of the inner circumferential surface, but when a through hole is opened on the gear, the third contact cannot measure the distance between the inner hole and the through hole. When the through hole position deviates, it may cause inaccurate gear installation.

[0005] To this end, the present invention provides a gear detection device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a gear detection device described in the present invention comprises:

[0008] Workbench;

[0009] The gear body is located at the top center of the workbench;

[0010] There are two guide rails, and the top of each guide rail is slidably connected with a slider;

[0011] A sliding frame, both ends of which are fixed to the top of the sliding block;

[0012] Detection unit;

[0013] The detection unit includes a controller, a first infrared scanner, a second infrared scanner and a detection head; a reciprocating screw is rotatably connected between the sliding frames through a bearing; a moving block is threadedly connected to the reciprocating screw; the first infrared scanner is fixedly connected to the bottom of the moving block; a first motor is fixedly connected to the top of the sliding frame; the output shaft of the first motor is rotatably connected to the sliding frame through a bearing; the output shaft of the first motor is fixedly connected to one end of the reciprocating screw; two guide rods are slidably connected to the moving block; the two ends of the guide rods are respectively fixedly connected to the sliding frame;

[0014] The guide rails are fixed to the top of the workbench and symmetrically arranged on both sides of the gear body;

[0015] The second infrared scanner is arranged on one side of the gear body, and the second infrared scanner is connected to the workbench through the lifting plate and the mounting seat.

[0016] Preferably, a moving box is provided at one end of the workbench away from the second infrared scanner; a fourth motor is fixedly connected to the inner wall of the moving box; a disc is fixedly connected to the output shaft of the fourth motor; a limiting block is fixedly connected to a side wall of the disc close to the gear body; a sliding plate is slidably connected to the moving box through two protruding blocks; a limiting groove is provided on a side wall of the sliding plate close to the fourth motor; the limiting block slides in the limiting groove; a brush is fixedly connected to the side wall of the sliding plate close to the gear body.

[0017] Preferably, the detection head is arranged above the gear body, and a side plate is fixedly connected to the side wall of the sliding frame close to the second infrared scanner; an ultrasonic flaw detector is fixedly connected to the top of the side plate; and the detection head is installed at the bottom of the ultrasonic flaw detector through the side plate.

[0018] Preferably, a sliding opening is provided on a side wall of the moving box close to the gear body; the sliding plate is slidably connected in the sliding opening, and the protruding blocks are respectively fixed to both ends of the sliding plate and are slidably matched in the sliding opening.

[0019] Preferably, an electric push rod is fixedly connected to one end of the workbench, and the output end of the electric push rod is fixedly connected to the moving box; a material drop chute is opened on the workbench; a material collection box is fixedly connected to the bottom of the workbench, and the material collection box cooperates with the material drop chute.

[0020] Preferably, the bottom of the workbench is rotatably connected to a protective box via a bearing; the top of the protective box is fixedly connected to a top plate; four limit openings are opened on the top plate; a limit rod is slidably connected in each of the limit openings; the four limit rods are in contact with the inner hole of the gear body; the four limit rods are arranged circumferentially in the gear body.

[0021] Preferably, a second motor is fixedly connected to the bottom of the protective box; the output shaft of the second motor is fixedly connected to the positive and negative screw rods; the top of the positive and negative screw rods is rotatably connected to the bottom of the top plate through bearings; the outer wall of the positive and negative screw rods is threadedly connected to a round block; four second connecting blocks are fixedly connected to the round block in a circumferential arrangement; the bottom of the limit rods is fixedly connected to the first connecting block; two connecting rods are rotatably connected between the first connecting block and the second connecting block through a pin shaft.

[0022] Preferably, a gear ring is fixedly connected to the top outer wall of the protective box; a circular gear is provided on one side of the gear ring, and the circular gear is meshed with the gear ring; an L-shaped plate is fixedly connected to the bottom of the workbench; a third motor is fixedly connected to the L-shaped plate; the output shaft of the third motor is fixedly connected to the circular gear, and is rotatably connected to the workbench through a bearing.

[0023] Preferably, the mounting seat is fixedly connected to one end of the workbench away from the electric push rod; a lifting plate is fixedly mounted on the mounting seat by bolts; and the second infrared scanner is fixedly connected to the top of the lifting plate.

[0024] Preferably, the limiting rod is made of rubber material, and anti-slip grooves are provided on the limiting rod.

[0025] The beneficial effects of the present invention are as follows:

[0026] 1. A gear detection device described in the present invention cooperates with a first infrared scanner and a second infrared scanner; a coordinate system is established with a workbench plane as a reference plane and a workbench center as a coordinate origin, firstly, the guide rail drives the slider to move the sliding frame to the edge of the gear body, and then the first motor is turned on, and the reciprocating screw is driven to rotate by the first motor. Since the reciprocating screw is threadedly matched with the moving block, a ball nut seat is provided at the connection, and the moving block is driven to move radially through the ball nut seat, and the moving block drives the first infrared scanner to reciprocate, and the first infrared scanner reciprocates to scan the gear body, and the controller controls the computer program, and the computer program controls the guide rail to gradually drive the sliding frame to move until the gear body is scanned, and the first infrared scanner The scanning results of the contour of the gear body, the position of the opening and the size parameters are transmitted to the computer program via optical signals to establish a model. The inner diameter, outer diameter and through-hole parameters of the gear body in the model are compared with those of the standard gear. If the errors are all within the standard range, the test result passes. If there is an error that is not within the standard range, the test result fails. Then the gear body is driven to rotate, and the height of the gear body is scanned by the second infrared scanner. The second infrared scanner scans multiple points, and the multi-point data is transmitted to the computer program and compared with the standard gear. After a comprehensive inspection of the gear body, the accuracy of the inspection is improved, and the first infrared scanner and the second infrared scanner do not directly contact the gear body, reducing the risk of scratches.

[0027] 2. The gear detection device described in the present invention cooperates with a disc, a limit block and a sliding plate. When the gear body is being processed, some debris is stuck in the tooth groove. If it is not cleaned in time, inaccurate measurement will be caused. When cleaning is needed, the gear body is driven to rotate. During the rotation, the fourth motor is turned on to drive the disc to rotate, and the disc drives the limit block to rotate. During the rotation, the limit block slides in the limit groove at the same time. The limit block drives the sliding plate to reciprocate up and down through the limit groove, and the sliding plate drives the brush to reciprocate up and down. The brush cleans the tooth groove during the up and down reciprocating motion, and the debris stuck in the tooth groove is cleaned and dropped, and falls into the collection box through the drop chute, thereby realizing the function of quickly cleaning the debris.

[0028] 3. A gear detection device described in the present invention sets a limit rod, places the gear body in the middle of the limit rod, and turns on the second motor to drive the forward and reverse screws to rotate. The forward and reverse screws drive the round block to move up and down, and the round block drives the second connecting block to move up and down. The second connecting block drives the first connecting block to move along the limit opening through the connecting rod, and the first connecting block drives the limit rod to synchronously contract or expand in the limit opening, thereby realizing the function of fixing the gear body with different inner holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] Figure 1 is a stereogram of the present invention;

[0031] Figure 2 is a cross-sectional view of the present invention;

[0032] Figure 3 is a schematic structural diagram of a first infrared scanner in the present invention;

[0033] Figure 4 It is a structural schematic diagram of the protection box in the present invention;

[0034] Figure 5 It is a structural schematic diagram of the limit rod in the present invention;

[0035] Figure 6 It is a schematic diagram of the structure of the circular gear and the gear ring in the present invention;

[0036] Figure 7 It is a structural schematic diagram of the mobile box in the present invention;

[0037] Figure 8 It is a structural schematic diagram of the disc in the present invention;

[0038] In the figure: 1. workbench; 11. guide rail; 12. slider; 13. controller; 14. material chute; 15. material collection box; 2. sliding frame; 21. reciprocating screw; 22. first motor; 23. guide rod; 24. moving block; 25. first infrared scanner; 26. side plate; 27. ultrasonic flaw detector; 28. detection head; 3. lifting plate; 31. second infrared scanner; 32. mounting seat; 4. gear body; 41. limit rod; 42. protective box; 43. Top plate; 44. Limit opening; 45. First connecting block; 46. Connecting rod; 47. Round block; 48. Positive and negative threaded rod; 49. Second motor; 410. Second connecting block; 5. L-shaped plate; 51. Third motor; 52. Circular gear; 53. Gear ring; 6. Electric push rod; 61. Moving box; 62. Sliding plate; 63. Sliding opening; 64. Disc; 65. Limit groove; 66. Brush; 67. Protruding block; 68. Fourth motor; 69. Limit block. DETAILED DESCRIPTION

[0039] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0040] like Figures 1 to 8As shown, a gear detection device according to an embodiment of the present invention comprises: a workbench 1; a gear body 4, which is arranged at the top center of the workbench 1; two guide rails 11, each of which is slidably connected to a slider 12 at the top; a sliding frame 2, both ends of which are fixed to the top of the slider 12; a detection unit; the detection unit comprises a controller 13, a first infrared scanner 25, a second infrared scanner 31 and a detection head 28; a reciprocating screw 21 is rotatably connected between the sliding frames 2 through bearings; a moving block 24 is threadedly connected to the reciprocating screw 21; the first infrared scanner 25 is fixed to the bottom of the moving block 24 The top of the sliding frame 2 is fixedly connected with a first motor 22; the output shaft of the first motor 22 is rotatably connected to the sliding frame 2 through a bearing; the output shaft of the first motor 22 is fixedly connected to one end of the reciprocating screw 21; two guide rods 23 are slidably connected to the moving block 24; the two ends of the guide rods 23 are respectively fixedly connected to the sliding frame 2; the guide rails 11 are fixedly connected to the top of the workbench 1 and are symmetrically arranged on both sides of the gear body 4; the second infrared scanner 31 is arranged on one side of the gear body 4, and the second infrared scanner 31 is connected to the workbench 1 through the lifting plate 3 and the mounting seat 32.

[0041] In the prior art, during the gear machining process, some machining debris is stuck in the tooth groove and is not easy to fall off. During the inspection, the external tooth measuring contact contacts the debris and is stuck in the tooth groove, causing the external tooth measuring contact to be scratched and damaged, thereby affecting the gear inspection. Although this technology can measure the parameters of the inner circumference, when a through hole is opened on the gear, it is still impossible to measure the distance between the inner holes and the through holes. When the through hole position is deviated, it may cause inaccurate gear installation.

[0042] When the detection unit provided by the present invention is used, the gear body 4 is fixed on the workbench 1 and cleaned. When measuring, a coordinate system is established with the plane of the workbench 1 as the reference plane and the center of the workbench 1 as the coordinate origin. First, the guide rail 11 drives the slider 12 to move the sliding frame 2 to the edge of the gear body 4, and then the first motor 22 is turned on. The reciprocating screw 21 is driven to rotate by the first motor 22. Since the reciprocating screw 21 is threadedly matched with the moving block 24, a ball nut seat is provided at the connection. The moving block 24 is driven to move radially through the ball nut seat. The moving block 24 drives the first infrared scanner 25 to reciprocate. The first infrared scanner 25 reciprocates to scan the gear body 4, and the computer program is controlled by the controller 13. The computer program controls the guide rail 11 to gradually drive the sliding frame 2 to move until the gear body 4 is scanned. The first infrared scanner 25 measures the contour of the gear body 4, the position of the opening and the size parameters. The scanning results are transmitted to the computer program through optical signals to establish a model, and the inner diameter, outer diameter and through-hole parameters of the gear body 4 in the model are compared with those of the standard gear. If the errors are all within the standard range, the test result passes; if there is an error that is not within the standard range, the test result fails; then the gear body 4 is driven to rotate, and the height of the gear body 4 is scanned by the second infrared scanner 31. The second infrared scanner 31 scans multiple points, and the multi-point data is transmitted to the computer program and compared with the standard gear. If the error is within the standard range, the test result passes; if the error is not within the standard range, the test result fails; through the cooperation of the first infrared scanner 25 and the second infrared scanner 31, the gear body 4 is fully detected to improve the accuracy of the detection, and the first infrared scanner 25 and the second infrared scanner 31 do not directly contact the gear body 4, reducing the risk of scratches.

[0043] like Figure 1 , Figure 7 and Figure 8 As shown, a moving box 61 is provided at one end of the workbench 1 away from the second infrared scanner 31; a fourth motor 68 is fixedly connected to the inner wall of the moving box 61; a disc 64 is fixedly connected to the output shaft of the fourth motor 68; a limiting block 69 is fixedly connected to a side wall of the disc 64 close to the gear body 4; a sliding plate 62 is slidably connected to the moving box 61 through two protruding blocks 67; a limiting groove 65 is provided on a side wall of the sliding plate 62 close to the fourth motor 68; the limiting block 69 slides in the limiting groove 65; a brush 66 is fixedly connected to the side wall of the sliding plate 62 close to the gear body 4.

[0044] When the brush 66 provided by the present invention is in use, some debris is stuck in the tooth socket during processing of the gear body 4. If it is not cleaned in time, inaccurate measurement will result. When cleaning is needed, the gear body 4 is driven to rotate. During the rotation, the fourth motor 68 is turned on, and the disc 64 is driven to rotate by the fourth motor 68. The disc 64 drives the limit block 69 to rotate. During the rotation, the limit block 69 slides in the limit groove 65 at the same time. The limit block 69 drives the sliding plate 62 to reciprocate up and down through the limit groove 65. The sliding plate 62 drives the brush 66 to reciprocate up and down. During the up and down reciprocating movement of the brush 66, the tooth socket is cleaned and the debris stuck in the tooth socket is cleaned and dropped, thereby realizing the function of quickly cleaning the debris.

[0045] like Figure 1 to Figure 2 As shown, the detection head 28 is arranged above the gear body 4, and a side plate 26 is fixedly connected to the side wall of the sliding frame 2 close to the second infrared scanner 31; an ultrasonic flaw detector 27 is fixedly connected to the top of the side plate 26; the detection head 28 is installed at the bottom of the ultrasonic flaw detector 27 through the side plate 26.

[0046] When the ultrasonic flaw detector 27 and the detection head 28 provided by the present invention are in use, the first infrared scanner 25 is in operation and the ultrasonic flaw detector 27 is turned on at the same time. The ultrasonic flaw detector 27 detects the gear body 4 through the detection head 28 to detect whether there are cracks, sand holes, pores, white spots, inclusions and other defects inside the gear body 4, thereby determining whether the gear body 4 is qualified or not, thereby improving the quality control of the gear body 4.

[0047] like Figure 7 As shown, a sliding opening 63 is provided on a side wall of the moving box 61 close to the gear body 4 ; the sliding plate 62 is slidably connected in the sliding opening 63 , and the protruding blocks 67 are respectively fixed to both ends of the sliding plate 62 , and both are slidably matched in the sliding opening 63 .

[0048] When the sliding opening 63 provided by the present invention is in use, the sliding plate 62 drives the protruding block 67 to slide in the sliding opening 63 during the movement, and the sliding opening 63 and the protruding block 67 are limited in the vertical direction by the sliding plate 62.

[0049] like Figure 2 As shown, one end of the workbench 1 is fixedly connected to an electric push rod 6, and the output end of the electric push rod 6 is fixedly connected to a moving box 61; a material drop chute 14 is opened on the workbench 1; a material collection box 15 is fixedly connected to the bottom of the workbench 1, and the material collection box 15 cooperates with the material drop chute 14.

[0050] When the material chute 14 provided by the present invention is in use, since the sizes of the gear body 4 are different, it is necessary to move the moving box 61 and the brush 66 to appropriate positions through the electric push rod 6 so that the brush 66 always cleans the debris; the debris cleaned by the brush 66 falls into the collection box 15 through the material chute 14, and the debris is recovered.

[0051] like Figure 2 and Figure 4 As shown, the bottom of the workbench 1 is rotatably connected to a protective box 42 through a bearing; the top of the protective box 42 is fixedly connected to a top plate 43; four limit openings 44 are opened on the top plate 43; a limit rod 41 is slidably connected in each of the limit openings 44; the four limit rods 41 are in contact with the inner hole of the gear body 4; the four limit rods 41 are arranged circumferentially in the gear body 4.

[0052] When the limit rod 41 provided by the present invention is in use, the limit rod 41 is driven to move, and the limit rod 41 synchronously contracts or opens in the limit opening 44, so that the limit rod 41 contacts the inner hole of the gear body 4, fixes the gear body 4, and makes the center of the gear body 4 always at the origin of the coordinate system, thereby preventing offset during measurement, deviation in scanning results, and errors in model establishment.

[0053] like Figure 2 and Figure 5 As shown, a second motor 49 is fixedly connected to the bottom of the protective box 42; the output shaft of the second motor 49 is fixedly connected to a positive and negative screw rod 48; the top of the positive and negative screw rod 48 is rotatably connected to the bottom of the top plate 43 through a bearing; the outer wall of the positive and negative screw rod 48 is threadedly connected to a round block 47; four second connecting blocks 410 are fixedly connected in a circle on the round block 47; the bottom of the limit rod 41 is fixedly connected to a first connecting block 45; the first connecting block 45 and the second connecting block 410 are rotatably connected to each other by two connecting rods 46 through a pin shaft.

[0054] The first connecting block 45, the second connecting block 410 and the connecting rod 46 provided by the present invention are used to drive the limit rod 41 to move synchronously when in use. By turning on the second motor 49, the forward and reverse screw rods 48 are driven to rotate by the second motor 49, the forward and reverse screw rods 48 drive the round block 47 to move up and down, the round block 47 drives the second connecting block 410 to move up and down, the second connecting block 410 drives the first connecting block 45 to move along the limit opening 44 through the connecting rod 46, the first connecting block 45 drives the limit rod 41 to synchronously contract or open in the limit opening 44, thereby realizing the function of fixing the gear body 4 with different inner holes.

[0055] like Figure 2 and Figure 6As shown, a gear ring 53 is fixedly connected to the top outer wall of the protective box 42; a circular gear 52 is provided on one side of the gear ring 53, and the circular gear 52 is meshed with the gear ring 53; an L-shaped plate 5 is fixedly connected to the bottom of the workbench 1; a third motor 51 is fixedly connected to the L-shaped plate 5; the output shaft of the third motor 51 is fixedly connected to the circular gear 52, and is rotatably connected to the workbench 1 through a bearing.

[0056] When the circular gear 52 and the gear ring 53 provided by the present invention are in use and need to drive the gear body 4 to rotate, the third motor 51 needs to be turned on, and the circular gear 52 is driven to rotate by the third motor 51, and the circular gear 52 drives the gear ring 53 to rotate, and the gear ring 53 drives the protective box 42 to rotate, and the protective box 42 drives the internal top plate 43, the third motor 51 and other structures to rotate together, and the limit rod 41 also rotates therewith, and the limit rod 41 drives the gear body 4 to rotate. The rotation of the gear body 4 facilitates the detection of the height of different curved surfaces of the gear body 4 and the cleaning of the gear body 4.

[0057] like Figure 1 to Figure 2 As shown, the mounting seat 32 is fixedly connected to one end of the workbench 1 away from the electric push rod 6; the lifting plate 3 is fixedly mounted on the mounting seat 32 by bolts; and the second infrared scanner 31 is fixedly connected to the top of the lifting plate 3.

[0058] When the lifting plate 3 provided by the present invention is in use, the lifting plate 3 is positioned at a suitable height by bolts, so that the second infrared scanner 31 can completely scan the height of the gear body 4 and keep it in the middle of the scanned image, avoiding detection errors caused by incomplete data.

[0059] like Figure 4 As shown, the limiting rod 41 is made of rubber material, and anti-slip grooves are provided on the limiting rod 41.

[0060] When in use, the limit rod 41 provided by the present invention is provided with anti-slip grooves to prevent the limit rod 41 and the inner hole of the gear body 4 from sliding, which makes continuous circular motion inconvenient. The limit rod 41 is made of rubber material to prevent the limit rod 41 from having large friction with the inner hole of the gear body 4 and scratching the inner hole wall.

[0061] Working principle: the gear body 4 is placed in the middle of the limiting rod 41, and the second motor 49 is turned on to drive the positive and negative threaded rod 48 to rotate, and the positive and negative threaded rod 48 drives the round block 47 to move up and down, and the round block 47 drives the second connecting block 410 to move up and down, and the second connecting block 410 drives the first connecting block 45 to move along the limiting opening 44 through the connecting rod 46, and the first connecting block 45 drives the limiting rod 41 to contract or open synchronously in the limiting opening 44, so as to realize the function of fixing the gear body 4 with different inner holes;

[0062] When the gear body 4 is being processed, some debris is stuck in the tooth groove. If it is not cleaned in time, the measurement will be inaccurate. When cleaning is needed, the gear body 4 is driven to rotate. During the rotation process, the fourth motor 68 is turned on, and the disc 64 is driven to rotate by the fourth motor 68. The disc 64 drives the limit block 69 to rotate. During the rotation process, the limit block 69 slides in the limit groove 65 at the same time. The limit block 69 drives the sliding plate 62 to reciprocate up and down through the limit groove 65. The sliding plate 62 drives the brush 66 to reciprocate up and down. The brush 66 cleans the tooth groove during the reciprocating movement, and the debris stuck in the tooth groove is cleaned and dropped, and falls into the collecting box 15 through the drop chute 14, so as to realize the function of quickly cleaning the debris.

[0063] During measurement, a coordinate system is established with the plane of the workbench 1 as the reference plane and the center of the workbench 1 as the coordinate origin. First, the guide rail 11 drives the slider 12 to move the slide frame 2 to the edge of the gear body 4, and then the first motor 22 is turned on. The reciprocating screw 21 is driven to rotate by the first motor 22. Since the reciprocating screw 21 is threadedly matched with the moving block 24, a ball nut seat is provided at the connection. The moving block 24 is driven to move radially by the ball nut seat. The moving block 24 drives the first infrared scanner 25 to reciprocate. The first infrared scanner 25 reciprocates to scan the gear body 4, and the controller 13 controls the computer program. The computer program controls the guide rail 11 to gradually drive the slide frame 2 to move until the gear body 4 is scanned. The first infrared scanner 25 transmits the scanning results of the contour of the gear body 4, the hole position and the size parameters to the computer program through optical signals to establish a model. The inner diameter, outer diameter and through-hole parameters of the gear body 4 in the model are compared with the standard gear. If the error If all are within the standard range, the test result passes; if there is an error that is not within the standard range, the test result fails; then the gear body 4 is driven to rotate, and the second infrared scanner 31 scans the height of the gear body 4. The second infrared scanner 31 scans multiple points, transmits the multi-point data to the computer program, and compares it with the standard gear. If the error is within the standard range, the test result passes; if the error is not within the standard range, the test result fails; through the cooperation of the first infrared scanner 25 and the second infrared scanner 31, the gear body 4 is fully detected to improve the accuracy of the detection, and the first infrared scanner 25 and the second infrared scanner 31 are not in direct contact with the gear body 4, reducing the hidden danger of scratches; when the first infrared scanner 25 is working, the ultrasonic flaw detector 27 is turned on at the same time. The ultrasonic flaw detector 27 detects the gear body 4 through the detection head 28 to detect whether there are cracks, sand holes, pores, white spots, inclusions and other defects inside the gear body 4, thereby determining whether the gear body 4 is qualified or not, and improving the quality control of the gear body 4.

[0064] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A gear detection device, comprising: Workbench (1); The gear body (4) is arranged at the top center of the workbench (1); Two guide rails (11) are provided, and a slider (12) is slidably connected to the top of each guide rail; A sliding frame (2), both ends of which are fixedly connected to the top of the sliding block (12); Detection unit; The invention is characterized in that: the detection unit comprises a controller (13), a first infrared scanner (25), a second infrared scanner (31) and a detection head (28); a reciprocating screw (21) is rotatably connected between the sliding frames (2) via a bearing; a moving block (24) is threadedly connected to the reciprocating screw (21); the first infrared scanner (25) is fixedly connected to the bottom of the moving block (24); a first motor (22) is fixedly connected to the top of the sliding frame (2); an output shaft of the first motor (22) is rotatably connected to the sliding frame (2) via a bearing; the output shaft of the first motor (22) is fixedly connected to one end of the reciprocating screw (21); two guide rods (23) are slidably connected to the moving block (24); and the two ends of the guide rod (23) are respectively fixedly connected to the sliding frame (2); The guide rails (11) are fixedly connected to the top of the workbench (1) and are symmetrically arranged on both sides of the gear body (4); The second infrared scanner (31) is disposed on one side of the gear body (4), and the second infrared scanner (31) is connected to the workbench (1) through the lifting plate (3) and the mounting seat (32); The bottom of the workbench (1) is rotatably connected to a protection box (42) via a bearing; the top of the protection box (42) is fixedly connected to a top plate (43); four limit openings (44) are formed on the top plate (43); each of the limit openings (44) is slidably connected to a limit rod (41); the four limit rods (41) are in contact with the inner hole of the gear body (4); the four limit rods (41) are circumferentially arranged in the gear body (4); The bottom of the protection box (42) is fixedly connected to a second motor (49); the output shaft of the second motor (49) is fixedly connected to a positive and negative threaded rod (48); the top of the positive and negative threaded rod (48) is rotatably connected to the bottom of the top plate (43) via a bearing; the outer wall of the positive and negative threaded rod (48) is threadedly connected to a round block (47); four second connecting blocks (410) are circumferentially arranged and fixedly connected to the round block (47); the bottom of each of the limit rods (41) is fixedly connected to a first connecting block (45); the first connecting block (45) and the second connecting block (410) are rotatably connected to two connecting rods (46) via a pin shaft; A gear ring (53) is fixedly connected to the outer wall of the top end of the protection box (42); a circular gear (52) is provided on one side of the gear ring (53), and the circular gear (52) meshes with the gear ring (53); an L-shaped plate (5) is fixedly connected to the bottom of the workbench (1); a third motor (51) is fixedly connected to the L-shaped plate (5); an output shaft of the third motor (51) is fixedly connected to the circular gear (52) and is rotatably connected to the workbench (1) via a bearing.

2. A gear detection device according to claim 1, characterized in that: A moving box (61) is provided at one end of the workbench (1) away from the second infrared scanner (31); a fourth motor (68) is fixedly connected to the inner wall of the moving box (61); a disc (64) is fixedly connected to the output shaft of the fourth motor (68); a limiting block (69) is fixedly connected to a side wall of the disc (64) close to the gear body (4); a sliding plate (62) is slidably connected to the moving box (61) via two protruding blocks (67); a limiting groove (65) is provided on a side wall of the sliding plate (62) close to the fourth motor (68); the limiting block (69) slides in the limiting groove (65); and a brush (66) is fixedly connected to the side wall of the sliding plate (62) close to the gear body (4).

3. A gear detection device according to claim 2, characterized in that: The detection head (28) is arranged above the gear body (4); a side plate (26) is fixedly connected to the side wall of the sliding frame (2) close to the second infrared scanner (31); an ultrasonic flaw detector (27) is fixedly connected to the top of the side plate (26); and the detection head (28) is installed at the bottom of the ultrasonic flaw detector (27) through the side plate (26).

4. A gear detection device according to claim 3, characterized in that: A sliding opening (63) is provided on a side wall of the moving box (61) close to the gear body (4); the sliding plate (62) is slidably connected in the sliding opening (63); the protruding blocks (67) are respectively fixed to both ends of the sliding plate (62) and are slidably matched in the sliding opening (63).

5. A gear detection device according to claim 4, characterized in that: An electric push rod (6) is fixedly connected to one end of the workbench (1), and an output end of the electric push rod (6) is fixedly connected to a moving box (61); a material drop chute (14) is provided on the workbench (1); a material collection box (15) is fixedly connected to the bottom of the workbench (1), and the material collection box (15) cooperates with the material drop chute (14).

6. A gear detection device according to claim 5, characterized in that: The mounting seat (32) is fixedly connected to an end of the workbench (1) away from the electric push rod (6); a lifting plate (3) is fixedly mounted on the mounting seat (32) by means of bolts; and the second infrared scanner (31) is fixedly connected to the top end of the lifting plate (3).

7. A gear detection device according to claim 6, characterized in that: The limiting rod (41) is made of rubber material, and anti-slip grooves are provided on the limiting rod (41).

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