Gear chamfer laser measuring instrument

Abstract

The application discloses a gear chamfer laser measuring instrument, which comprises a machining table, a control panel fixedly installed on the outer wall of the machining table, a gear body arranged above the machining table, and a machining assembly arranged outside the gear body, wherein the machining assembly comprises a protection assembly arranged above the machining table, and a telescopic rod is started, which pushes a push plate downward; since the first connecting plate end is hinged with the push plate and a moving frame, and a fixed frame is fixedly installed on the top surface of the machining table, under the limitation, the downward moving push plate pulls the moving frame through the first connecting plate, so that the moving frame slides in the fixed frame; since the sealing frame fixedly installed on the end of the moving frame is sealingly slid in the fixed frame, under the limitation, the sealing frame pulls the gas in the fixed frame, the connecting pipe and the air plate are inhaled through the pipe groove, the air head communicated with the air plate inhales the air in the moving frame and the fixed frame, and the floating dust is inhaled into the air head, the air plate, the connecting pipe and the pipe groove.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of gear chamfer measurement, in particular to a gear chamfer laser measuring instrument. BACKGROUND

[0002] The gear chamfer laser measuring instrument is a device for measuring the gear chamfer profile size, mainly applied to the measurement of the end face chamfer profile size and form and position tolerances of the internal and external gears. The measuring instrument usually includes a tooth profile positioning assembly, a rotating work platform, a profile measuring device, a data acquisition and processing device and the like. The measured gear is placed on the rotating work platform, the tooth profile positioning assembly fixes the gear, the profile measuring device detects the position and size of the gear chamfer, and the data is transmitted to the data acquisition and processing device through the data line.

[0003] As disclosed in the gear chamfer laser measuring instrument of Chinese patent CN102322819B, a non-contact measurement method is adopted, which has the advantages of visualization, intelligence, high sampling rate, high precision, non-destructive measurement and the like. The tooth profile positioning assembly is adopted to realize the accurate positioning of the measured gear. The measurement value of the laser displacement sensor can be directly used as the Z direction coordinate value of each measurement point on the scanned section, which avoids the system calibration error and significantly improves the measurement precision. The center of the measured gear can be automatically searched, and the multi-section continuous measurement of the gear chamfer profile based on the center as the reference can be realized. The two-dimensional motion mode is adopted to replace the traditional one-dimensional motion mode, which can realize the one-time multi-section measurement of the gear chamfer, and the positioning of each section and the measurement starting point is accurate, which eliminates the influence of human factors on the measurement results, and the intelligence and automation degree is high. One computer can realize the synchronous control, data acquisition and data processing and the like. The high-precision laser displacement sensor is used to collect data, which effectively improves the detection precision of the instrument.

[0004] For this structure, although the gear chamfer can be measured, when the surrounding environment is dusty, the measuring structure cannot clean the dust in the surrounding environment, and then the laser measuring instrument will perform measurement work in the environment with more dust. Since the laser measuring instrument is sensitive to environmental conditions when in use, the dust will affect the optical measurement accuracy of the laser measuring instrument, and then affect the use of the laser measuring instrument. Therefore, we propose a gear chamfer laser measuring instrument which can clean dust to improve measurement accuracy. SUMMARY

[0005] The present application aims to provide a gear chamfer laser measuring instrument to solve the problems in the background art.

[0006] In order to solve the above technical problems, the present application provides the following technical scheme: a gear chamfer laser measuring instrument, comprising a machining table, a control panel is fixedly installed on the outer wall of the machining table, a gear body is arranged above the machining table, and a machining assembly is arranged outside the gear body, the machining assembly comprises a protection assembly arranged above the machining table, a fixing assembly is arranged below the protection assembly, and a measuring assembly is arranged above the fixing assembly.

[0007] According to the above technical scheme, the protection assembly comprises a support fixedly installed on the top surface of the machining table, a telescopic rod is fixedly installed in the support, a push plate is fixedly installed at the end of the telescopic rod, a first connecting plate is hingedly connected to the outer wall of the push plate, a moving frame is hingedly connected to the end of the first connecting plate away from the push plate, an observation window is fixedly installed on the outer wall of the moving frame, a sealing frame is fixedly installed on the side wall of the moving frame, a fixed frame is slidably arranged on the outer wall of the sealing frame, a pipe groove is arranged in communication in the fixed frame, a connecting pipe is arranged in communication at the end of the pipe groove, an air plate is arranged in communication at the end of the connecting pipe away from the pipe groove, an air head is arranged in communication on the outer wall of the air plate, an elastic groove is formed in the inner side of the fixed frame, an elastic sheet is fixedly installed in the elastic groove, a clamping frame is fixedly installed on the inner side of the fixed frame, and an adsorption plate is slidably arranged in the clamping frame.

[0008] According to the above technical scheme, the fixing assembly comprises a screw rod rotatably connected to the bottom of the machining table, a sleeve block is sleeved on the outer wall of the screw rod, a second connecting plate is hingedly connected to the outer wall of the sleeve block, a sliding block is hingedly connected to the end of the second connecting plate away from the sleeve block, a clamping rod is fixedly installed at the end of the sliding block away from the second connecting plate, and a sliding groove is formed in the top surface of the machining table.

[0009] According to the above technical scheme, the measuring assembly comprises an installation plate fixedly installed at the bottom of the push plate, a motor is fixedly installed at the bottom of the installation plate, a rotating rod is fixedly installed at the output end of the motor, a first magnetic ring is fixedly installed on the outer wall of the rotating rod, a clamping rod is sleeved in the first magnetic ring, a second magnetic ring is fixedly installed at the end of the clamping rod, a connecting block is hingedly connected to the inner side of the rotating rod, a clamping hole is formed in the outer wall of the connecting block, and a laser measuring instrument body is fixedly installed on the outer wall of the connecting block.

[0010] According to the above technical scheme, the outer wall of the sealing frame and the inner side of the fixed frame are sealingly and slidably arranged, the fixed frame is fixedly installed on the top surface of the machining table, when the first connecting plate pulls the moving frame, the moving frame drives the sealing frame to slide outward relative to the fixed frame, and the inner side of the fixed frame is subjected to air suction.

[0011] According to the above technical scheme, the number of the moving frame and the fixed frame is two groups, which are symmetrically distributed along the center line of the top surface of the machining table, and under the protection of the moving frame and the fixed frame, the laser measuring instrument body can be prevented from being affected by external dust.

[0012] According to the technical scheme, the fixed frame is internally provided with a frame groove, the fixed frame is communicated with the connecting pipe through the pipe groove, the connecting pipe is communicated with the air head through the air plate, the adsorption plate is made of adsorption profile material, and dust in the measurement environment can be cleaned under cooperation of the air head and the adsorption plate, so that the measurement precision is improved.

[0013] According to the technical scheme, the outer wall of the clamping rod is made of flexible material, the number of the clamping rods is six, the clamping rods are distributed in the form of a circle, and the clamping rods on the flexible outer wall can prevent the gear body from being scratched. The flexible clamping rods do not affect the clamping precision and stability of the gear body, and the six clamping rods can be moved together to release the clamping of the gear body, so that the gear body can be replaced after measurement.

[0014] According to the technical scheme, the outer wall of the sliding block is slidably arranged in the sliding groove, and the sleeve block is threadedly arranged on the outer wall of the screw rod. Under the restriction of the second connecting plate and the sliding block, the rotating screw rod can drive the sleeve block arranged on the outer wall to move up and down.

[0015] According to the technical scheme, the first magnetic ring and the second magnetic ring are magnetically attracted to each other, and the clamping rod is clamped in the clamping hole. Under the restriction thereof, the angle of the laser measuring instrument body can be adjusted.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] 1. The gear chamfer laser measuring instrument is composed of a protection assembly, when measuring the gear body, the gear body needs to be fixed on the top surface of the machining table through the fixing assembly, and then the measuring assembly is used for measuring, when the dust in the surrounding environment is more, the dust will affect the optical measurement accuracy of the laser measuring instrument, and then the use of the laser measuring instrument is affected, therefore, the dust on the outside of the gear body needs to be treated, after the gear body is fixed, the telescopic rod is started, the push plate is pushed downward, the first connecting plate is connected with the push plate and the moving frame at the end, the fixed frame is fixedly installed on the top surface of the machining table, the push plate moves downward and pulls the moving frame through the first connecting plate, the moving frame slides in the fixed frame, the sealing frame fixedly installed at the end of the moving frame slides in the fixed frame, the sealing frame pulls the gas in the fixed frame, the connecting pipe and the gas plate are connected with the gas head, the air in the moving frame and the fixed frame is sucked, the dust is sucked into the gas head, the gas plate, the connecting pipe and the pipe slot, the dust adhered to the outer wall of the gear body is collected and treated, when the two moving frames contact with each other, the moving frames stop sliding, the gas head stops sucking dust, the air flow in the moving frames and the fixed frames is avoided to affect the measurement of the laser measuring instrument, when the push plate moves downward, the measuring assembly moves downward, the gear body can be measured through the measuring assembly, after the measurement is completed, the telescopic rod drives the push plate to move upward, the moving frame is pushed through the first connecting plate, the moving frame drives the sealing frame to slide in the fixed frame, and the dust-containing gas in the fixed frame is discharged, at this time, the dust on the outer wall of the gear body does not affect the taking and placing of the gear body.

[0018] 2. The gear chamfer laser measuring instrument is composed of a protection assembly, when the moving frame drives the sealing frame to slide in the fixed frame, the dust in the fixed frame and the moving frame is sucked through the gas head, the air drives the dust to flow, part of the dust is adsorbed on the outer wall of the adsorption plate, the adsorption plate and the gas head cooperate to remove the dust in the moving frame and the fixed frame, so that the laser measuring instrument can be accurately measured, when the adsorption plate needs to be replaced after being used for a long time, the elastic sheet is pressed to move the elastic sheet into the elastic groove, the adsorption plate is pulled to replace the adsorption plate, the structure cooperates with the adsorption plate and the gas head to remove the dust on the outside of the gear body, and the adsorption plate can be conveniently replaced, so that it is more easy to use.

[0019] 3. The gear chamfer laser measuring instrument, which is composed of a fixing assembly, when measuring the gear body, the gear body inner circle center sleeve is arranged outside the clamping rod, the screw rod is rotated, the sleeve block is connected with the sliding block through the second connecting plate, the sliding block is arranged in the sliding groove, the rotating screw rod can drive the sleeve block arranged outside to move upward, the sleeve block pushes the sliding block through the second connecting plate, the sliding block drives the clamping rod to move, six clamping rods are in an open state, and the gear body is supported, the structure can automatically position the circle center of the gear body, manual adjustment of the position of the circle center of the gear body is not needed, and the gear body can be quickly fixed, and the measurement convenience is improved.

[0020] 4. The gear chamfer laser measuring instrument, which is composed of a measuring assembly, when the gear body needs to be measured, the laser measuring instrument body is started, and measurement work is performed in cooperation with the control panel, when the measurement angle needs to be adjusted, the motor is started, the output end fixedly installed rotating rod is rotated, the rotating rod drives the connecting block connected to the inner side to rotate, and the connecting block drives the laser measuring instrument body to rotate, so that the measurement angle is rotationally adjusted, when the side part needs to be measured, the clamping rod is pulled out, the laser measuring instrument body and the connecting block are rotated, the connecting block is rotated with the connecting part of the rotating rod as the rotation center, after the angle adjustment is completed, the clamping rod is clamped into the clamping hole of the rotating rod, and the clamping rod and the rotating rod can be prevented from falling off under the magnetic attraction of the first magnetic ring and the second magnetic ring. The structure can flexibly adjust the measurement angle to obtain more measurement data. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and are used to explain the application, and do not constitute a limitation on the application. In the drawings:

[0022] Figure 1 It is a front view of the three-dimensional structure of the gear chamfer laser measuring instrument.

[0023] Figure 2 It is a schematic view of the protection assembly, the fixing assembly and the measuring assembly of the gear chamfer laser measuring instrument.

[0024] Figure 3 It is a schematic view of the protection assembly of the gear chamfer laser measuring instrument.

[0025] Figure 4 It is a partial cross-sectional view of the protection assembly of the gear chamfer laser measuring instrument.

[0026] Figure 5 It is a partial exploded view of the protection assembly of the gear chamfer laser measuring instrument.

[0027] Figure 6 It is a fixed assembly schematic view of a gear chamfer laser measuring instrument of the present application;

[0028] Figure 7 It is an exploded schematic view of a measuring assembly of a gear chamfer laser measuring instrument of the present application;

[0029] Figure 8 It is a measuring assembly schematic view of a gear chamfer laser measuring instrument of the present application;

[0030] Figure 9 It is an exploded schematic view of a measuring assembly of a gear chamfer laser measuring instrument of the present application;

[0031] In the figure: 1, processing table; 2, control panel; 3, gear body; 4, processing assembly; 41, protection assembly; 43, fixed assembly; 44, measuring assembly; 411, support; 412, telescopic rod; 413, push plate; 414, first connecting plate; 415, moving frame; 416, observation window; 417, sealing frame; 418, fixed frame; 419, pipe groove; 420, connecting pipe; 421, air plate; 422, air head; 423, elastic groove; 424, elastic sheet; 425, clamping frame; 426, adsorption plate; 431, screw rod; 432, sleeve block; 433, second connecting plate; 434, sliding block; 435, clamping rod; 436, sliding groove; 441, mounting plate; 442, motor; 443, rotating rod; 444, first magnetic ring; 445, clamping rod; 446, second magnetic ring; 447, connecting block; 448, clamping hole; 449, laser measuring instrument body. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0033] Embodiment 1: a preferred embodiment of a gear chamfer laser measuring instrument provided by the present application Figures 1 to 9 As shown in the figure: a gear chamfer laser measuring instrument, comprising a processing table 1;

[0034] The control panel 2 is fixedly installed on the outer wall of the processing table 1;

[0035] The gear body 3 is arranged above the processing table 1;

[0036] And set outside the gear body 3 processing assembly 4, processing assembly 4 includes the protection assembly 41 set above the processing platform 1, the protection assembly 41 includes the support 411 fixedly installed on the top surface of the processing platform 1, the telescopic rod 412 is fixedly installed in the support 411, the telescopic rod 412 end fixedly installed with the push plate 413, the push plate 413 outer wall hinged with the first connecting plate 414, the first connecting plate 414 away from the push plate 413 one end hinged with the moving frame 415, the moving frame 415 outer wall fixedly installed with the observation window 416, the moving frame 415 side wall fixedly installed with the sealing frame 417, the sealing frame 417 outer wall slidingly provided with the fixed frame 418, the fixed frame 418 is communicated with the pipe groove 419 inside, the pipe groove 419 end is communicated with the connecting pipe 420, the connecting pipe 420 away from the pipe groove 419 one end is communicated with the air plate 421, the air plate 421 outer wall is communicated with the air head 422, the fixed frame 418 in the side is provided with the elastic slot 423, the elastic slot 423 is fixedly installed with the elastic sheet 424 inside, the fixed frame 418 in the side is fixedly installed with the card frame 425, the card frame 425 in the side is slidingly provided with the adsorption plate 426.

[0037] In the embodiment, when the gear body 3 is measured, it needs to be fixed on the top surface of the machining table 1 through the fixing assembly 43, and then measured through the measuring assembly 44. When the surrounding environment is dusty, the dust will affect the optical measurement accuracy of the laser measuring instrument, and then affect the use of the laser measuring instrument. Therefore, the dust outside the gear body 3 needs to be treated. After the gear body 3 is fixed, the telescopic rod 412 is started, which pushes the push plate 413 downward. Since the end of the first connecting plate 414 is hinged with the push plate 413 and the moving frame 415, and the fixed frame 418 is fixedly installed on the top surface of the machining table 1, under the limitation thereof, the downward moving push plate 413 pulls the moving frame 415 through the first connecting plate 414, so that the moving frame 415 slides in the fixed frame 418. Since the sealing frame 417 fixedly installed at the end of the moving frame 415 is sealingly slid in the fixed frame 418, under the limitation thereof, the sealing frame 417 sucks the gas in the fixed frame 418, and the gas plate 421 sucks the air in the moving frame 415 and the fixed frame 418 through the pipe groove 419 and the connecting pipe 420, and the air head 422 connected with the gas plate 421 sucks the air in the moving frame 415 and the fixed frame 418. The dust is sucked into the air head 422, the gas plate 421, the connecting pipe 420 and the pipe groove 419, and the dust attached to the outer wall of the gear body 3 is collected and treated. When the two moving frames 415 contact each other, they no longer slide, so the air head 422 no longer sucks dust, avoiding the air flow in the moving frames 415 and the fixed frame 418 to affect the measurement of the laser measuring instrument body 449. When the push plate 413 moves downward, the measuring assembly 44 moves downward, so that the gear body 3 can be measured by the measuring assembly 44. When the measurement is completed, the telescopic rod 412 drives the push plate 413 to move upward, and the moving frame 415 drives the sealing frame 417 to slide into the fixed frame 418 through the first connecting plate 414, so that the dust-containing gas in the fixed frame 418 is discharged. At this time, even if there is dust on the outer wall of the gear body 3, it does not affect the taking and placing of the gear body 3. When the moving frame 415 drives the sealing frame 417 to slide into the fixed frame 418, the dust in the fixed frame 418 and the moving frame 415 is sucked by the air head 422. The air carries the dust to flow, part of the dust is adsorbed on the outer wall of the adsorption plate 426, and the adsorption plate 426 and the air head 422 cooperate to remove the dust in the moving frame 415 and the fixed frame 418, so that the laser measuring instrument body 449 can be accurately measured. When the adsorption plate 426 is used for a long time, it needs to be replaced. Press the elastic sheet 424 to make the elastic sheet 424 move into the elastic groove 423. At this time, pull the adsorption plate 426 to replace the adsorption plate 426. The structure cooperates the adsorption plate 426 with the air head 422 to remove the dust outside the gear body 3. Since the adsorption plate 426 can be conveniently replaced, it is more easy to use.

[0038] Embodiment 2: A preferred embodiment of the gear chamfer laser measuring instrument provided by the application Figures 1 to 9The fixed assembly 43 comprises a screw rod 431 rotatably connected to the bottom of the machining table 1, the outer wall of the screw rod 431 is sleeved with a sleeve block 432, the outer wall of the sleeve block 432 is hingedly connected with a second connecting plate 433, one end of the second connecting plate 433 away from the sleeve block 432 is hingedly connected with a sliding block 434, the sliding block 434 is fixedly installed with a clamping rod 435 at one end away from the second connecting plate 433, and the top surface of the machining table 1 is provided with a sliding groove 436.

[0039] In the embodiment, when the gear body 3 is measured, the gear body 3 needs to be fixed, the inner circle center of the gear body 3 is sleeved outside the clamping rod 435, the screw rod 431 is rotated, the sleeve block 432 is hingedly connected with the sliding block 434 through the second connecting plate 433, and the sliding block 434 is slidably arranged in the sliding groove 436, under the limitation, the rotating screw rod 431 can drive the sleeve block 432 sleeved on the outer wall to move upwards, the sleeve block 432 pushes the sliding block 434 through the second connecting plate 433, the sliding block 434 drives the clamping rod 435 to move, and the six clamping rods 435 are in an open movement, supporting the gear body 3 inside, the structure can automatically position the circle center of the gear body 3, the operator does not need to manually adjust the position where the circle center of the gear body 3 is located, and the structure can quickly fix the gear body 3, improving the measurement convenience.

[0040] Embodiment 3: A preferred embodiment of the gear chamfer laser measuring instrument provided by the application is as follows Figures 1 to 9 The measuring assembly 44 comprises a mounting plate 441 fixedly installed at the bottom of the push plate 413, the mounting plate 441 is fixedly installed with a motor 442 at the bottom, the output end of the motor 442 is fixedly installed with a rotating rod 443, the outer wall of the rotating rod 443 is fixedly installed with a first magnetic ring 444, the first magnetic ring 444 is sleeved with a clamping rod 445 inside, the clamping rod 445 is fixedly installed with a second magnetic ring 446 at the end, the inner side of the rotating rod 443 is hingedly connected with a connecting block 447, the outer wall of the connecting block 447 is provided with a clamping hole 448, and the outer wall of the connecting block 447 is fixedly installed with a laser measuring instrument body 449.

[0041] When the gear body 3 needs to be measured in this embodiment, the laser measuring instrument body 449 is started to cooperate with the control panel 2 to perform the measurement work, when the measurement angle needs to be adjusted, the motor 442 is started, the output end of the rotating rod 443 fixedly installed is rotated, the rotating rod 443 drives the connecting block 447 hingedly connected on the inner side to rotate, and the connecting block 447 drives the laser measuring instrument body 449 to rotate to adjust the measurement angle rotation, when the side part needs to be measured, the clamping rod 445 is pulled out, the laser measuring instrument body 449 and the connecting block 447 are rotated, and the connecting block 447 is rotated with the hinge connection of the rotating rod 443 as the rotation center, when the angle adjustment is completed, the clamping rod 445 is clamped to the inside of the clamping hole 448 of the rotating rod 443, and under the magnetic attraction restriction of the first magnetic ring 444 and the second magnetic ring 446, the clamping rod 445 and the rotating rod 443 can be prevented from falling off. The structure can flexibly adjust the measurement angle to obtain more measurement data.

[0042] The outer wall of the sealing frame 417 is sealingly and slidably arranged in the fixed frame 418, the fixed frame 418 is fixedly installed on the top surface of the machining table 1, and when the first connecting plate 414 pulls the moving frame 415, the moving frame 415 drives the sealing frame 417 to slide to the outside of the fixed frame 418, and the inside of the fixed frame 418 is subjected to air suction treatment.

[0043] The number of the moving frame 415 and the fixed frame 418 is two groups, which are symmetrically distributed on the center line of the top surface of the machining table 1, and under the protection of the moving frame 415 and the fixed frame 418, the influence of external dust on the measurement of the laser measuring instrument body 449 can be avoided.

[0044] The fixed frame 418 is provided with a frame groove in the inside, the fixed frame 418 is communicated with the connecting pipe 420 through the pipe groove 419, the connecting pipe 420 is communicated with the air head 422 through the air plate 421, the adsorption plate 426 is made of adsorption profile material, and under the cooperation of the air head 422 and the adsorption plate 426, the dust in the measurement environment can be cleaned to improve the measurement accuracy.

[0045] The outer wall of the clamping rod 435 is made of flexible material, and the number of the clamping rod 435 is six, which is circumferentially distributed around the sleeve block 432. Under the limitation of the clamping rod 435 made of flexible material, the inside of the gear body 3 can be prevented from being scratched, the clamping rod 435 made of flexible material will not affect the clamping accuracy and stability of the gear body 3, and the six clamping rods 435 gathered together can no longer clamp the gear body 3, so that the gear body 3 measured can be replaced.

[0046] The outer wall of the sliding block 434 is slidably arranged in the sliding groove 436, and the sleeve block 432 is threadedly sleeved on the outer wall of the screw 431. Under the limitation of the second connecting plate 433 and the sliding block 434, the rotating screw 431 can drive the sleeve block 432 sleeved on the outer wall to move up and down.

[0047] The first magnetic ring 444 and the second magnetic ring 446 are magnetically attracted, the clamping rod 445 is clamped with the clamping hole 448, and the laser measuring instrument body 449 can be measured and adjusted in angle under the limitation.

[0048] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0049] Finally, it should be noted that the above only refers to the preferred embodiments of the present application, and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A gear chamfer laser measuring instrument, comprising a machining table (1); The outer wall of the machining table (1) is fixedly installed with a control panel (2); A gear body (3) is arranged above the machining table (1); and a machining assembly (4) arranged outside the gear body (3), characterized in that: The machining assembly (4) comprises a protection assembly (41) arranged above the machining table (1), a fixing assembly (43) arranged below the protection assembly (41), and a measuring assembly (44) arranged above the fixing assembly (43); The protection assembly (41) comprises a support (411) fixedly installed on the top surface of the machining table (1), a telescopic rod (412) fixedly installed inside the support (411), a push plate (413) fixedly installed at the end of the telescopic rod (412), a first connecting plate (414) hingedly connected to the outer wall of the push plate (413), a moving frame (415) hingedly connected to the end of the first connecting plate (414) away from the push plate (413), an observation window (416) fixedly installed on the outer wall of the moving frame (415), a sealing frame (417) fixedly installed on the side wall of the moving frame (415), a fixed frame (418) slidably arranged on the outer wall of the sealing frame (417), a pipe groove (419) in communication with the inside of the fixed frame (418), a connecting pipe (420) in communication with the end of the pipe groove (419), an air plate (421) in communication with the end of the connecting pipe (420) away from the pipe groove (419), an air head (422) in communication with the outer wall of the air plate (421), an elastic groove (423) formed in the inner side of the fixed frame (418), an elastic sheet (424) fixedly installed in the elastic groove (423), a clamping frame (425) fixedly installed on the inner side of the fixed frame (418), and an adsorption plate (426) slidably arranged in the inner side of the clamping frame (425); The measuring assembly (44) comprises a mounting plate (441) fixedly installed at the bottom of the push plate (413), a motor (442) fixedly installed at the bottom of the mounting plate (441), a rotating rod (443) fixedly installed at the output end of the motor (442), a first magnetic ring (444) fixedly installed on the outer wall of the rotating rod (443), a clamping rod (445) sleeved in the first magnetic ring (444), a second magnetic ring (446) fixedly installed at the end of the clamping rod (445), a connecting block (447) hingedly connected to the inner side of the rotating rod (443), a clamping hole (448) formed in the outer wall of the connecting block (447), and a laser measuring instrument body (449) fixedly installed on the outer wall of the connecting block (447).

2. The laser gear chamfer measuring instrument of claim 1, wherein: The fixing assembly (43) comprises a screw rod (431) rotatably connected to the bottom of the machining table (1), a sleeve block (432) sleeved on the outer wall of the screw rod (431), a second connecting plate (433) hingedly connected to the outer wall of the sleeve block (432), a sliding block (434) hingedly connected to the end of the second connecting plate (433) away from the sleeve block (432), a clamping rod (435) fixedly installed at the end of the sliding block (434) away from the second connecting plate (433), and a sliding groove (436) formed in the top surface of the machining table (1).

3. The laser gear chamfer measuring instrument of claim 1, wherein: The outer wall of the sealing frame (417) is sealed and slides with the inner part of the fixed frame (418), and the fixed frame (418) is fixedly installed on the top surface of the processing table (1).

4. The laser gear chamfer measuring instrument of claim 1, wherein: The number of the moving frame (415) and the fixed frame (418) is two groups, which are symmetrically distributed on the center line of the top surface of the processing table (1).

5. The laser gear chamfer measuring instrument of claim 1, wherein: The fixed frame (418) is provided with a frame groove in the inner part, and the fixed frame (418) is communicated with the connecting pipe (420) through the pipe groove (419), and the connecting pipe (420) is communicated with the air head (422) through the air plate (421), and the adsorption plate (426) is made of adsorption profile material.

6. The laser gear chamfer measuring instrument of claim 2, wherein: The outer wall of the clamping rod (435) is made of flexible material, and the number of the clamping rod (435) is six, which is distributed in the circumcircle of the sleeve block (432).

7. The laser gear chamfer measuring instrument of claim 2, wherein: The outer wall of the sliding block (434) is slidably arranged in the sliding groove (436), and the sleeve block (432) is threadedly sleeved with the outer wall of the screw rod (431).

8. The laser gear chamfer measuring instrument of claim 1, wherein: The first magnetic ring (444) and the second magnetic ring (446) are magnetically attracted, and the clamping rod (445) is clamped with the clamping hole (448).

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