Automatic outer diameter detection device and detection method

Abstract

The present invention relates to the technical field of laser diameter measuring instruments, and discloses an automatic outer diameter detection device and detection method, comprising a detection platform and a laser diameter measuring instrument, wherein the laser diameter measuring instrument is arranged on the detection platform, and the detection platform is provided with a moving mechanism, a three-jaw chuck and a tailstock; the detection platform is also provided with an adjustment mechanism, the adjustment mechanism includes a driving rack and a one-way gear, and a ratchet mechanism is provided inside the one-way gear; the detection platform is also provided with a cleaning mechanism, the cleaning mechanism includes a pushing component, an air tank and a plurality of nozzles distributed in a horizontal array. The present invention achieves the effect of fully detecting the outer diameter of the transmission shaft, thereby greatly improving the detection effect of the laser diameter measuring instrument on the transmission shaft, and at the same time can clean the surface of the transmission shaft, thereby improving the accuracy of the detection data, and can automatically detect the outer diameter of the transmission shaft, thereby greatly improving the convenience of use.

Description

Technical Field

[0001] The present invention relates to the technical field of laser diameter measuring instruments, in particular to an automatic outer diameter detection device and a detection method. Background Art

[0002] The laser diameter gauge is a high-precision non-contact measuring device based on laser technology. It is mainly used to measure dimensional parameters such as the outer diameter, width or thickness of an object. It is widely used in industrial manufacturing, material processing, precision instruments and other fields. It scans the laser beam through a high-speed rotating polygonal mirror or galvanometer. The laser beam is blocked when passing through the object to be measured, and the object size is calculated based on the time difference when the beam is blocked. The drive shaft is an important transmission component in the automotive power system. Most of the time, its outer diameter needs to be tested after production is completed. At this time, a laser diameter gauge is needed.

[0003] Chinese patent CN220552416U discloses an easy-to-operate inner and outer diameter detection device, specifically relating to the field of hollow shaft technology, including a caliper, wherein the bottom end of the caliper is fixedly connected to a support rod. The utility model sets a rotating rod at one end of the first threaded rod so that the first connecting rod can drive the positioning rod to move. In the utility model, when it is necessary to detect the inner and outer diameters of the hollow shaft, most people will use laser caliper to detect the hollow shaft. However, when the laser caliper is used, it is usually installed after the production line. Through the inertia of the production line, the position of the hollow shaft is moved by the roller on the laser caliper so that the hollow shaft can move between the calipers for detection. However, the height of different production lines is different, and the laser caliper needs to be adjusted according to the height of the production line. When the gravity on the top of the laser caliper is too large, the height of the device will not be unable to be fixed, thereby making the device easy to operate.

[0004] However, when the above technical solution is used, Figure 2 As shown, it can only detect the diameter of the AB side of the drive shaft, resulting in incomplete detection of the drive shaft, which has certain limitations. At the same time, most of the existing laser diameter gauges do not have the effect of cleaning the surface of the drive shaft. When the surface of the drive shaft is stained with dust, it will affect the detection data of the laser diameter gauge, and manual cleaning will be time-consuming and labor-intensive. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides an automatic outer diameter detection device and detection method, which has the advantages of being able to comprehensively detect the outer diameter of the drive shaft while cleaning the surface of the drive shaft, thereby improving the accuracy of the laser diameter gauge's detection data on the drive shaft, and solving the above-mentioned problems.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: an automatic outer diameter detection device, comprising a detection platform and a laser diameter gauge, wherein the laser diameter gauge is disposed on the detection platform and is used to detect the outer diameter of a transmission shaft; the detection platform is provided with a moving mechanism, a three-jaw chuck, and a tailstock, wherein the moving mechanism is used to drive the laser diameter gauge to move horizontally back and forth on the detection platform; and the tailstock and the three-jaw chuck are used to fix the transmission shaft;

[0007] The testing platform is also provided with an adjustment mechanism, which includes a driving rack and a one-way gear. A ratchet mechanism is provided inside the one-way gear. When the laser diameter gauge moves, the driving rack is driven to contact the one-way gear, thereby driving the one-way gear to rotate forward. When the one-way gear rotates forward, the ratchet mechanism can drive the three-jaw chuck to rotate.

[0008] The inspection table is also provided with a cleaning mechanism, which includes a pushing assembly, a gas tank and a plurality of nozzles distributed in a horizontal array. The gas tank is used to deliver compressed gas to the nozzles, and the nozzles are used to blow air onto the surface of the transmission shaft. When the one-way gear rotates, the pushing assembly is driven to operate, and the operation of the pushing assembly drives the nozzle to move downward.

[0009] Preferably, the outer side of the three-jaw chuck is rotatably connected to a fixed seat, the bottom of the fixed seat is fixedly connected to a sliding seat, the outer side of the three-jaw chuck is fixedly connected to a rotating shaft, the rotating shaft is fixedly connected to a worm gear, the outer side of the worm gear is meshed with a worm, and the worm gear is installed on the side of the fixed seat away from the three-jaw chuck.

[0010] Preferably, a mounting plate is fixedly connected to the outer side of the driving rack, the mounting plate is mounted on the laser caliper, the ratchet mechanism is fixedly connected to one end of the worm, and the one-way gear is rotationally connected to the outer end of the worm.

[0011] Preferably, the pushing assembly includes a bent pipe and a fixed plate, the fixed plate is fixedly connected to the slide seat, one side of the fixed plate is fixedly connected to the limit frame, the inner side of the limit frame is fixedly connected to the limit rod, a slide is slidably connected to the limit rod, the bottom surface of the slide is fixedly connected to a return spring, the end of the return spring away from the slide is fixedly connected to the limit frame, the outer side of the slide is fixedly connected to a pushing rack, and the pushing rack is meshed with the one-way gear.

[0012] Preferably, the inner ends of the bent pipe are respectively slidably connected with a connecting rod and a push rod, the end of the connecting rod away from the bent pipe is fixedly connected to a connecting plate, the connecting plate is fixedly connected to the top surface of the pushing rack, the top surface of the connecting plate is fixedly connected to a connecting spring, the end of the connecting spring away from the connecting plate is fixedly connected to the bent pipe, the end of the push rod away from the bent pipe is fixedly connected to the air pipe, the nozzle is fixedly connected to the air pipe, the top surface of the air pipe is fixedly connected to a compression spring, and the end of the compression spring away from the air pipe is fixedly connected to the bent pipe.

[0013] Preferably, a carrier plate is provided on the top surface of the gas tank, and an air pump is provided on the carrier plate. When the air pump is running, it can deliver compressed air into the gas tank. The bottom of the gas tank is fixedly connected to a top plate, and the top plate is fixedly connected to the testing platform. A spring tube is provided on the bottom surface of the gas tank, and the end of the spring tube away from the gas tank passes through the top plate and is fixedly connected to the air pipe.

[0014] Preferably, the moving mechanism includes slide rails and rectangular holes, the slide rails are distributed on both sides of the detection platform, and the slide rails are fixedly connected to the detection platform, and the tailstock, slide and laser diameter gauge are all slidably connected to the slide rails.

[0015] Preferably, the rectangular hole is opened on the detection platform, and the rectangular hole is distributed between the slide rails. The inner side of the rectangular hole is rotatably connected to a reciprocating screw rod, the outer end of the reciprocating screw rod is fixedly connected to a motor, the motor is fixedly connected to the detection platform, and a slider is slidably connected to the reciprocating screw rod, and the slider is fixedly connected to the bottom surface of the laser diameter gauge.

[0016] Preferably, a laser detection mechanism is provided on the inner side of the laser diameter gauge, and when the laser detection mechanism is in operation, the diameter of the transmission shaft can be detected. The laser diameter gauge is also provided with a control panel.

[0017] A detection method for an automatic outer diameter detection device uses the automatic outer diameter detection device described above.

[0018] Compared with the prior art, the present invention provides an automatic outer diameter detection device and detection method, which has the following beneficial effects:

[0019] 1. In the present invention, when detecting the outer diameter of the transmission shaft, the two ends of the transmission shaft are fixed by the three-jaw chuck and the tailstock, and then the moving mechanism is operated to drive the laser diameter gauge to move toward the three-jaw chuck, and the laser diameter gauge moves to detect the outer diameter of the transmission shaft. At the same time, the movement of the laser diameter gauge drives the driving rack to move, and the driving rack moves to contact and engage with the one-way gear. As the laser diameter gauge moves, the driving rack drives the one-way gear to rotate, and the rotation of the one-way gear drives the ratchet mechanism to rotate, and the rotation of the ratchet mechanism drives the three-jaw chuck to rotate, and the rotation of the three-jaw chuck drives the transmission shaft to rotate a fixed angle, and then the moving mechanism drives the laser diameter gauge to move toward the tailstock. Similarly, when the laser diameter gauge moves, it drives the driving rack to rotate. The movable rack moves again. At this time, when the driving rack contacts the one-way gear again and drives the one-way gear to rotate, the three-jaw chuck cannot rotate under the action of the ratchet mechanism. Then the laser diameter gauge continues to move. Similarly, the laser diameter gauge re-detects the outer diameter of the rotated transmission shaft when it moves. As the moving mechanism continues to operate, the laser diameter gauge moves back and forth horizontally on the detection table, so that the driving rack can drive the three-jaw chuck and the transmission shaft to achieve continuous rotation at a fixed angle, thereby achieving the effect of circumferential measurement of the outer diameter of the transmission shaft, thereby greatly improving the detection effect of the laser diameter gauge on the transmission shaft, and also enables the laser diameter gauge to fully detect the outer diameter of the transmission shaft.

[0020] 2. In the present invention, during the movement of the laser diameter gauge toward the three-jaw chuck, the driving rack contacts the one-way gear and as the laser diameter gauge moves, the driving rack drives the one-way gear to rotate, and the rotation of the one-way gear drives the pushing assembly to operate. The operation of the pushing assembly drives the nozzle to move downward, and after the nozzle moves downward, the surface of the transmission shaft is blown clean, thereby improving the accuracy of the data after the laser diameter gauge detects the transmission shaft. Afterwards, when the moving mechanism drives the laser diameter gauge to move toward the tailstock, the driving rack drives the one-way gear to rotate in the opposite direction. At this time, the nozzle is pushed back to its original position by the pushing assembly, thereby avoiding the problem that the nozzle will block the laser diameter gauge, and realizing the cleaning of the surface of the transmission shaft, thereby improving the accuracy of the detection data.

[0021] 3. The present invention automatically drives the laser diameter gauge to move through the moving mechanism. While the laser diameter gauge moves, the cleaning mechanism is driven to operate, thereby achieving the effect of automatic detection and cleaning of the transmission shaft, thereby greatly improving the convenience and practicality of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention from a first viewing angle;

[0023] Figure 2 It is a side sectional view of the transmission shaft;

[0024] Figure 3 This is a schematic diagram of the overall structure of the present invention from a second viewing angle;

[0025] Figure 4 It is a side sectional view of the overall three-dimensional structure of the present invention;

[0026] Figure 5 for Figure 4 A schematic diagram of the structure at center A;

[0027] Figure 6 This is a schematic diagram of the structure of the three-jaw chuck and the pushing assembly in the present invention;

[0028] Figure 7 This is a schematic diagram of the push component in the present invention;

[0029] Figure 8 for Figure 7 A magnified schematic diagram of the structure at point B in the middle;

[0030] Figure 9 It is a side sectional diagram of the one-way gear in the present invention.

[0031] In the figure: 1. Testing table; 2. Laser diameter gauge; 21. Laser detection mechanism; 22. Control panel; 3. Moving mechanism; 31. Slide rail; 32. Rectangular hole; 34. Reciprocating screw; 35. Motor; 36. Slider; 4. Three-jaw chuck; 41. Fixed seat; 42. Rotating shaft; 43. Worm gear; 44. Worm; 45. Slider; 5. Tailstock; 6. Adjustment mechanism; 61. Drive rack; 611. Mounting plate; 62. One-way gear; 621. Ratchet mechanism; 7. Cleaning mechanism; 71. Pushing assembly; 711. Bend pipe; 712. Fixed plate; 713. Limiting frame; 714. Limiting rod; 715. Slide plate; 716. Return spring; 717. Pushing rack; 718. Connecting rod; 719. Push rod; 7110. Connecting plate; 7111. Connecting spring; 7112. Air pipe; 7113. Compression spring; 72. Air tank; 721. Carrier plate; 722. Air pump; 723. Top plate; 724. Spring tube; 73. Nozzle. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] As introduced in the background technology, there are deficiencies in the existing technology. In order to solve the above technical problems, this application proposes an automatic outer diameter detection device and detection method.

[0034] Example 1: Please refer to Figures 1-9An automatic outer diameter detection device includes a detection platform 1 and a laser diameter gauge 2. The laser diameter gauge 2 is set on the detection platform 1 and is used to detect the outer diameter of the transmission shaft. The detection platform 1 is provided with a moving mechanism 3, a three-jaw chuck 4 and a tailstock 5. The moving mechanism 3 is used to drive the laser diameter gauge 2 to move horizontally back and forth on the detection platform 1. The tailstock 5 and the three-jaw chuck 4 are used to fix the transmission shaft.

[0035] The testing platform 1 is also provided with an adjustment mechanism 6, which includes a drive rack 61 and a one-way gear 62. The one-way gear 62 is internally provided with a ratchet mechanism 621. When the laser diameter measuring instrument 2 moves, the drive rack 61 is driven to contact the one-way gear 62, thereby driving the one-way gear 62 to rotate forward. When the one-way gear 62 rotates forward, the ratchet mechanism 621 can drive the three-jaw chuck 4 to rotate.

[0036] A cleaning mechanism 7 is also provided on the inspection table 1. The cleaning mechanism 7 includes a pushing assembly 71, a gas tank 72 and a plurality of nozzles 73 distributed in a horizontal array. The gas tank 72 is used to deliver compressed gas to the nozzle 73. The nozzle 73 is used to blow air on the surface of the transmission shaft. When the one-way gear 62 rotates, the pushing assembly 71 is driven to operate, and the operation of the pushing assembly 71 drives the nozzle 73 to move downward.

[0037] During use, the two ends of the transmission shaft to be inspected are fixed by the tailstock 5 and the three-jaw chuck 4, and then the laser diameter gauge 2 is driven to move toward the three-jaw chuck 4 through the moving mechanism 3. The movement of the laser diameter gauge 2 drives the driving rack 61 to move, and then the driving rack 61 contacts the one-way gear 62. As the laser diameter gauge 2 moves, the driving rack 61 drives the one-way gear 62 to rotate, and the rotation of the one-way gear 62 drives the ratchet mechanism 621 inside it to rotate. After the ratchet mechanism 621 rotates, it drives the three-jaw chuck 4 to achieve a fixed angle of rotation. At the same time, after the one-way gear 62 rotates, it drives the pushing assembly 71 to operate, and the pushing assembly 71 operates to drive the nozzle 73 to move downward. After the nozzle 73 moves downward, it blows air to clean the surface of the rotated transmission shaft. Then the moving mechanism 3 drives the laser diameter gauge 2 to move toward the tailstock 5. At this time, the driving rack 61 drives the one-way gear 62 to rotate again. At this time, the ratchet mechanism 621 inside the one-way gear 62 acts Under the action of the toothed wheel 62, the three-jaw chuck 4 and the transmission shaft can no longer rotate, thereby ensuring that the position of the transmission shaft will not change, and the one-way gear 62 will be driven by the driving rack 61 to rotate in the opposite direction. At this time, the one-way gear 62 drives the pushing assembly 71 to push the nozzle 73 to its original position. Then the moving mechanism 3 drives the laser diameter gauge 2 to continue to move toward the tailstock 5. The laser diameter gauge 2 performs diameter detection on the cleaned transmission shaft during the movement. As the moving mechanism 3 drives the laser diameter gauge 2 to move horizontally back and forth on the detection table 1, the transmission shaft can continue to rotate at a fixed angle. At the same time, the pushing assembly 71 can also drive the nozzle 73 to continuously blow air to clean the surface of the transmission shaft, so that the laser diameter gauge 2 can fully detect the outer diameter of the transmission shaft. At the same time, the nozzle 73 can also ensure that when the laser diameter gauge 2 detects the transmission shaft, no foreign matter will adhere to the transmission shaft, thereby affecting the accuracy of the detection data of the laser diameter gauge 2.

[0038] It should be noted that when the laser diameter gauge 2 moves for the first time, the laser diameter gauge 2 will not detect the transmission shaft, so as to avoid the problem that when the unclean transmission shaft is initially detected, if there is foreign matter attached to the surface of the transmission shaft, it will affect the detection data of the laser diameter gauge 2.

[0039] Example 2: See Figures 1-9, different from the above-mentioned embodiment 1, the moving mechanism 3 includes a slide rail 31 and a rectangular hole 32, the slide rails 31 are distributed on both sides of the detection platform 1, and the slide rails 31 are fixedly connected to the detection platform 1, the tailstock 5, the slide 45 and the laser diameter gauge 2 are all slidably connected to the slide rail 31, the rectangular hole 32 is opened on the detection platform 1, and the rectangular holes 32 are distributed between the slide rails 31, the inner side of the rectangular hole 32 is rotatably connected to a reciprocating screw rod 34, the outer end of the reciprocating screw rod 34 is fixedly connected to a motor 35, the motor 35 is fixedly connected to the detection platform 1, the reciprocating screw rod 34 is slidably connected to a slider 36, the slider 36 is fixedly connected to the bottom surface of the laser diameter gauge 2, and a laser detection mechanism 21 is provided on the inner side of the laser diameter gauge 2. When the laser detection mechanism 21 is in operation, it can detect the diameter of the transmission shaft. The laser diameter gauge 2 is also provided with a control panel 22;

[0040] When inspecting the transmission shaft, start the motor 35. The operation of the motor 35 drives the reciprocating screw 34 to rotate. The rotation of the reciprocating screw 34 drives the slider 36 to move. The movement of the slider 36 drives the laser diameter gauge 2 to move along the slide rail 31. When it is necessary to inspect the transmission shaft, the laser detection mechanism 21 is driven to operate through the control panel 22. Then, as the reciprocating screw 34 continues to rotate, the slider 36 can drive the laser diameter gauge 2 to reciprocate horizontally. When the laser diameter gauge 2 reciprocates, it can detect the outer diameter of the transmission shaft.

[0041] Example 3, see Figures 1-9 , which is different from the above-mentioned embodiment 2, is that the outer side of the three-jaw chuck 4 is rotatably connected to a fixed base 41, the bottom of the fixed base 41 is fixedly connected to a slide 45, the outer side of the three-jaw chuck 4 is fixedly connected to a rotating shaft 42, the rotating shaft 42 is fixedly connected to a worm gear 43, the outer side of the worm gear 43 is meshed with a worm 44, the worm 44 is mounted on the side of the fixed base 41 away from the three-jaw chuck 4, the outer side of the drive rack 61 is fixedly connected to a mounting plate 611, the mounting plate 611 is mounted on the laser diameter gauge 2, the ratchet mechanism 621 is fixedly connected to one end of the worm 44, and the one-way gear 62 is rotatably connected to the outer end of the worm 44;

[0042] When the moving mechanism 3 drives the laser caliper 2 to move toward the three-jaw chuck 4, the laser caliper 2 drives the mounting plate 611 to move, and the movement of the mounting plate 611 drives the driving rack 61 to move. After the driving rack 61 moves, it contacts and engages with the one-way gear 62. Then, as the laser caliper 2 moves, the driving rack 61 drives the one-way gear 62 to rotate, and the rotation of the one-way gear 62 drives the ratchet mechanism 621 to rotate. The rotation of the ratchet mechanism 621 drives the worm 44 to rotate, and the rotation of the worm 44 drives the worm wheel 43 to rotate. The rotation of the worm wheel 43 drives the rotating shaft 42 to rotate, and the rotation of the rotating shaft 42 drives the three-jaw chuck 4 to rotate. The three-jaw chuck 4 rotates to drive the transmission shaft. Limited by the length of the driving rack 61, the driving rack 61 can only drive the one-way gear 62 to rotate at a fixed angle. When the moving mechanism 3 drives the laser diameter gauge 2 to move toward the tailstock 5, the driving rack 61 contacts the one-way gear 62 again, and then the driving rack 61 drives the one-way gear 62 to rotate in the opposite direction. At this time, the ratchet mechanism 621 in the one-way gear 62 cannot transmit the power to the one-way gear 62, thereby causing the worm 44 to be unable to rotate again. At this time, the angle of the three-jaw chuck 4 is fixed with the cooperation of the worm 44 and the worm wheel 43.

[0043] Example 4, see Figures 1-9The cam 714 is fixed on the upper and lower ends of the cam 715, and the cam 716 is fixed on the lower end of the cam 715, so that the cam 716 can be fixed on the lower end of the cam 715. The top surface of the feeding rack 717 and the top surface of the connecting plate 7110 are fixedly connected to a connecting spring 7111. The end of the connecting spring 7111 away from the connecting plate 7110 is fixedly connected to the elbow 711. The end of the push rod 719 away from the elbow 711 is fixedly connected to the air pipe 7112. The nozzle 73 is fixedly connected to the air pipe 7112. The top surface of the air pipe 7112 is fixedly connected to a compression spring 7113. The end of the compression spring 7113 away from the air pipe 7112 is fixedly connected to the top surface of the air pipe 7112. The gas tank 72 is fixedly connected to the elbow 711. A carrier plate 721 is provided on the top surface of the gas tank 72. An air pump 722 is provided on the carrier plate 721. When the air pump 722 is running, it can deliver compressed air into the gas tank 72. The bottom of the gas tank 72 is fixedly connected to a top plate 723. The top plate 723 is fixedly connected to the testing platform 1. A spring tube 724 is provided on the bottom surface of the gas tank 72. The end of the spring tube 724 away from the gas tank 72 passes through the top plate 723 and is fixedly connected to the air pipe 7112.

[0044] The compressed air is continuously delivered to the air tank 72 by the operation of the air pump 722. When the one-way gear 62 rotates, the one-way gear 62 drives the push rack 717 to move. The push rack 717 moves and drives the slide plate 715 to move along the limit rod 714 and squeezes the return spring 716. The push rack 717 moves and drives the connecting plate 7110 to move upward. The connecting plate 7110 moves and drives the connecting rod 718 to move. The connecting rod 718 moves and squeezes the connecting spring 7111 and transmits the pressure to the hydraulic oil in the elbow 711. Then the hydraulic oil transmits the pressure. The hydraulic oil is passed to the push rod 719. At this time, the push rod 719 is pushed out of the elbow 711 by the hydraulic oil. The movement of the push rod 719 drives the air pipe 7112 to move downward, and stretches the compression spring 7113. The downward movement of the air pipe 7112 drives the nozzle 73 to move downward. After the nozzle 73 moves downward, it blows air to clean the surface of the rotated transmission shaft. When the driving rack 61 drives the one-way gear 62 to rotate in the opposite direction, the one-way gear 62 drives the push rack 717 to return to its original position. At this time, the connecting rod 718, the connecting plate 7110, the push rod 719 and the air pipe 7112 are all pushed back to their original positions.

[0045] In actual use, a pressure sensor is also provided in the gas tank 72. After the pressure in the gas tank 72 reaches the threshold, the air pump 722 stops working. At the same time, an electric valve is provided at the connection between the gas tank 72 and the spring tube 724, a push rod is provided on the air pipe 7112, and a press switch is provided on the inner side of the top plate 723. The press switch is used to drive the electric valve to open and close. In the initial state, the push rod on the air pipe 7112 contacts the press switch. At this time, the electric valve is closed, so that the gas in the gas tank 72 cannot enter the spring tube 724. When the push rod 719 drives the air pipe 7112 to move downward, the push rod on the air pipe 7112 is separated from the press switch. At this time, the electric valve is opened. At this time, the gas in the gas tank 72 enters the spring tube 724, and then enters the air pipe 7112 and is ejected through the nozzle 73 on the air pipe 7112.

[0046] A detection method for an automatic outer diameter detection device uses the above-mentioned automatic outer diameter detection device.

[0047] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An automatic outer diameter detection device, comprising a detection platform and a laser diameter gauge, wherein the laser diameter gauge is arranged on the detection platform and is used to detect the outer diameter of a transmission shaft, characterized in that: The testing platform is provided with a moving mechanism, a three-jaw chuck and a tailstock, the moving mechanism is used to drive the laser diameter gauge to move horizontally back and forth on the testing platform, and the tailstock and the three-jaw chuck are used to fix the transmission shaft; The testing platform is also provided with an adjustment mechanism, which includes a driving rack and a one-way gear. A ratchet mechanism is provided inside the one-way gear. When the laser diameter gauge moves, the driving rack is driven to contact the one-way gear, thereby driving the one-way gear to rotate forward. When the one-way gear rotates forward, the ratchet mechanism can drive the three-jaw chuck to rotate. The inspection table is also provided with a cleaning mechanism, which includes a pushing assembly, a gas tank and a plurality of nozzles distributed in a horizontal array. The gas tank is used to deliver compressed gas to the nozzles, and the nozzles are used to blow air on the surface of the transmission shaft. When the one-way gear rotates, the pushing assembly is driven to operate, and the operation of the pushing assembly drives the nozzles to move downward; The outer side of the three-jaw chuck is rotatably connected to a fixed seat, the bottom of the fixed seat is fixedly connected to a sliding seat, the outer side of the three-jaw chuck is fixedly connected to a rotating shaft, the rotating shaft is fixedly connected to a worm gear, the outer side of the worm gear is meshed with a worm, and the worm gear is installed on the side of the fixed seat away from the three-jaw chuck; The pushing assembly includes a bent pipe and a fixed plate, the fixed plate is fixedly connected to the slide seat, one side of the fixed plate is fixedly connected to the limit frame, the inner side of the limit frame is fixedly connected to the limit rod, a slide is slidably connected to the limit rod, the bottom surface of the slide is fixedly connected to a return spring, the end of the return spring away from the slide is fixedly connected to the limit frame, the outer side of the slide is fixedly connected to a pushing rack, and the pushing rack is meshed with the one-way gear; The inner ends of the bent pipe are respectively slidably connected to a connecting rod and a push rod, the end of the connecting rod away from the bent pipe is fixedly connected to a connecting plate, the connecting plate is fixedly connected to the top surface of the pushing rack, the top surface of the connecting plate is fixedly connected to a connecting spring, the end of the connecting spring away from the connecting plate is fixedly connected to the bent pipe, the end of the push rod away from the bent pipe is fixedly connected to the air pipe, the nozzle is fixedly connected to the air pipe, the top surface of the air pipe is fixedly connected to a compression spring, and the end of the compression spring away from the air pipe is fixedly connected to the bent pipe; A carrier plate is provided on the top surface of the gas tank, and an air pump is provided on the carrier plate. When the air pump is running, it can transport compressed air into the gas tank. The bottom of the gas tank is fixedly connected to a top plate, and the top plate is fixedly connected to the testing platform. A spring tube is provided on the bottom surface of the gas tank, and the end of the spring tube away from the gas tank passes through the top plate and is fixedly connected to the air pipe.

2. The automatic outer diameter detection device according to claim 1, characterized in that: A mounting plate is fixedly connected to the outer side of the driving rack, and the mounting plate is installed on the laser diameter gauge. The ratchet mechanism is fixedly connected to one end of the worm, and the one-way gear is rotationally connected to the outer end of the worm.

3. The automatic outer diameter detection device according to claim 2, characterized in that: The moving mechanism includes slide rails and rectangular holes. The slide rails are distributed on both sides of the detection platform and are fixedly connected to the detection platform. The tailstock, slide and laser diameter measuring instrument are all slidably connected to the slide rails.

4. The automatic outer diameter detection device according to claim 3, characterized in that: The rectangular hole is opened on the detection platform, and the rectangular holes are distributed between the slide rails. The inner side of the rectangular hole is rotatably connected to a reciprocating screw rod, the outer end of the reciprocating screw rod is fixedly connected to a motor, the motor is fixedly connected to the detection platform, and a slider is slidably connected to the reciprocating screw rod, and the slider is fixedly connected to the bottom surface of the laser diameter gauge.

5. The automatic outer diameter detection device according to claim 4, characterized in that: A laser detection mechanism is provided on the inner side of the laser diameter gauge. When the laser detection mechanism is in operation, the diameter of the transmission shaft can be detected. A control panel is also provided on the laser diameter gauge.

6. A detection method for an automatic outer diameter detection device, characterized in that: The automatic outer diameter detection device according to any one of claims 1 to 5 is used.

Images