CN114670059B

CN114670059B - Gear hobbing machine thermal error monitoring system based on gear m value intelligent on-site measurement

Info

Publication number: CN114670059B
Application number: CN202210344728.0A
Authority: CN
Inventors: 邹政; 闵榕城; 陈伟; 陈思喆; 艾靖峰; 蒋海龙
Original assignee: Chongqing University of Technology
Current assignee: Chongqing University of Technology
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2023-02-03
Anticipated expiration: 2042-04-02
Also published as: CN114670059A

Abstract

The invention relates to a gear hobbing machine thermal error monitoring system based on gear m-value intelligent in-situ measurement, which comprises an information acquisition module and a rotary platform arranged at an information sampling end of the information acquisition module, wherein the rotary platform is used for rotatably supporting a gear; the monitoring system further comprises an operating platform which is arranged on one side of the rotating platform and has a rotating function, and a clamping piece is arranged on the operating platform. This gear hobbing machine thermal error monitoring system based on gear m value intelligence is at position measured uses through information acquisition module, rotary platform, operation platform, the cooperation of pressing from both sides and getting piece and measuring component, and this application technical scheme has reduced the process of artificial measurement gear m value as far as, and the accurate measurement mode of adoption intelligence changes, reduces measuring error from this, improves work efficiency.

Description

Gear hobbing machine thermal error monitoring system based on gear m value intelligent on-site measurement

Technical Field

The invention relates to the technical field of machine tool machining, in particular to a hobbing machine thermal error monitoring system based on intelligent in-situ measurement of a gear m value.

Background

With the continuous development of the times, the field of machine tool machining gradually becomes one of the key directions concerned by modern society, wherein when the machine tool machining is carried out on a gear, the gear on the transmission mechanism is clamped and placed on a gear bearing platform through a transmission mechanism in the field at present through a structure such as a mechanical arm after the gear is transported to a to-be-machined place, and at the moment, a pressing piece on the machine tool moves downwards to achieve the purpose of clamping and fixing the gear, and then the gear is further machined.

However, in the actual use process of the above technical solutions, some disadvantages gradually appear, and the occurrence of the disadvantages causes that the conventional gear processing method cannot meet the high standard use requirements in the present field, and the disadvantages of the conventional gear processing method are specifically described as follows:

in the process of machine tool machining, a machine tool generates and accumulates heat, so that the machine tool generates thermal deformation, and the thermal deformation is directly influenced on the size of a workpiece in the process of gear machining.

Therefore, it is very desirable in the field to design a brand-new gear hobbing machine thermal error monitoring system based on gear m value intelligent in-situ measurement to replace manual measurement of m value.

Disclosure of Invention

In view of this, the present invention provides a thermal error monitoring system for a gear hobbing machine based on intelligent in-situ measurement of a gear m value, so as to solve the problems of measurement errors and low working efficiency when the gear m value is measured manually in the prior art.

The invention is realized by the following technical scheme:

the system for monitoring the thermal error of the gear hobbing machine based on the intelligent in-situ measurement of the m value of the gear comprises an information acquisition module and a rotary platform arranged at an information sampling end of the information acquisition module, wherein the rotary platform is used for rotatably supporting the gear; the monitoring system further comprises an operating platform which is arranged on one side of the rotating platform and has a rotating function, a clamping piece is arranged on the operating platform and used for transferring the gear, and a measuring assembly which is used for clamping the gear and measuring the m value is further arranged on the operating platform.

Further, the information acquisition module comprises a camera arranged on the machine tool and a microprocessor arranged in the camera, and the camera part of the camera faces the rotating platform; the rotary platform comprises a fixed base connected with the machine tool and a workbench arranged on the fixed base and having a rotary function, wherein a working identification line is arranged on the fixed base, when the camera captures information of a gear on the rotary platform, whether the line segment from the center of the gear to the tooth top coincides with the working identification line is judged through a microprocessor, the information is sent to an upper computer, and if the two have an angle error, the upper computer sends an instruction command to control the rotation of the workbench.

Furthermore, the measuring assembly comprises two supporting plates which are hinged with each other, wherein an installation platform is arranged at one end of one supporting plate, which is far away from the other supporting plate, and the installation platform is detachably connected with the operating platform; the measuring assembly further comprises a clamping part arranged below the supporting plate and used for clamping the gear, and a measuring module arranged on the supporting plate and used for measuring the m value of the gear.

Further, every the bottom of backup pad is provided with the slide rail to and the cylinder that sets up adjacent with the slide rail, the slip sets the slider on the slide rail, the clamping part is connected with the slider, the piston rod and the slider of cylinder meet, the piston rod of cylinder is flexible, drives the slider and slides on the slide rail to reach and carry out driven purpose to the clamping part, order about the clamping part and press from both sides tightly the gear.

Furthermore, the clamping part comprises a clamping rod and a mounting plate which is detachably connected with the sliding block, a sleeve is arranged at the bottom of the mounting plate and is of a hollow structure with an open bottom, a threaded hole communicated with the inside of the sleeve is formed in the sleeve, at least part of the clamping rod extends to the inside of the sleeve, a locking screw is arranged on the threaded hole in a threaded mode, and the locking screw extends to the inside of the threaded hole until the locking screw abuts against the clamping rod.

Furthermore, a lightening hole is formed in the mounting plate.

Further, the backup pad runs through along its thickness direction and has seted up two at least cylinder of being convenient for and carry out the installation preformed hole of installing.

Furthermore, two the one end that the backup pad is relative is provided with respectively accepts the board, and two accept the board and be coincidence from top to bottom and correspond, it has seted up the through-hole to accept the thickness direction of board to run through, and has set clamping screw on this through-hole, the last screw thread of clamping screw has set lock nut, the handing-over department of clamping screw and accepting the board is provided with first gasket, lock nut is provided with the second gasket with the handing-over department of accepting the board.

Furthermore, the measuring module comprises a laser displacement sensor which is detachably arranged on one of the mounting plates, and a laser reflecting plate which is detachably arranged on the other mounting plate, and the information output end of the laser displacement sensor is in information transmission connection with an upper computer.

Further, the mount table includes the stiff end that meets with operation platform and installs perpendicularly in the installation end at stiff end top, the installation end runs through along its direction of height and has seted up the opening, the backup pad adjacent with the mount table, and its tip is provided with the extension that extends to the inside of opening, and the one end that this extension deviates from the backup pad is provided with the limiting plate, the top of stiff end is provided with elevating gear, and the backup pad adjacent with the mount table and elevating gear's lift end meet.

The invention has the beneficial effects that:

this gear hobbing machine thermal error monitoring system based on gear m value intelligence is at present measured, through the information acquisition module, rotary platform, operation platform, the cooperation of clamping piece and measuring component is used, this device is when using, at first shift the gear to rotary platform through clamping piece on, after finishing to gear machining, the information acquisition module judges the gear position earlier, and with this information transmission to the host computer, host computer control rotary platform rotates, in order to satisfy the measurement demand to gear m value, subsequently under the measuring component effect, measure the m value of gear to be measured, this application technical scheme compares gear m value in the lathe later stage course with the gear m value of initial processing, thereby reach through intelligent measurement gear m value, and compare, in order to satisfy in real time effectively monitoring to gear hobbing machine tool thermal error, the purpose of judgement, the process of artificial measurement gear m value has been reduced as far as possible to this application technical scheme, change and adopt intelligent accurate measurement mode, thereby reduce the measurement error, improve work efficiency.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

FIG. 1 is a partial perspective view of the present invention;

FIG. 2 is a partial perspective view of a measurement assembly and mounting table of the present invention;

FIG. 3 is a partial perspective view of the measurement assembly and mounting table of the present invention II;

FIG. 4 is a partial perspective view of a measurement assembly and mounting table of the present invention;

FIG. 5 is a partial schematic view of an information collection module according to the present invention;

FIG. 6 is a schematic diagram of the coincidence of the identification line and the virtual line segment according to the present invention;

FIG. 7 is a schematic diagram illustrating that the mark line and the virtual line segment are not overlapped;

fig. 8 is a schematic diagram of partial information transmission according to the present invention.

In the figure: 1. a machine tool; 2. an information acquisition module; 201. a camera; 202. a camera; 203. a microprocessor; 3. rotating the platform; 301. a fixed base; 302. a work table; 4. an operating platform; 5. clamping the workpiece; 6. a measurement assembly; 601. a support plate; 602. a slide rail; 603. a slider; 604. a cylinder; 7. a clamping portion; 701. mounting a plate; 702. a sleeve; 703. a clamping bar; 8. marking a line; 9. a virtual line segment; 10. a gear; 11. lightening holes; 12. mounting a preformed hole; 13. a bearing plate; 14. fixing the screw rod; 15. locking the nut; 16. a first spacer; 17. a measurement module; 1701. a laser displacement sensor; 1702. a laser reflecting plate; 18. a limiting plate; 19. an installation table; 1901. an installation end; 1902. a fixed end; 20. a port; 21. an extension portion; 22. a lifting device.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the above description of the present invention, it should be noted that the terms "one side", "the other side" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or the element to which the present invention is directed must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Further, the term "identical" and the like do not mean that the components are absolutely required to be identical, but may have slight differences. The term "perpendicular" merely means that the positional relationship between the components is more perpendicular than "parallel", and does not mean that the structure must be perfectly perpendicular, but may be slightly inclined.

Referring to fig. 1-8, the present invention provides a technical solution: the system for monitoring the thermal error of the gear hobbing machine based on the intelligent in-situ measurement of the m value of the gear comprises an information acquisition module 2 and a rotary platform 3 arranged at an information sampling end of the information acquisition module 2, wherein the rotary platform 3 is used for rotatably supporting a gear 10, an information output end of the information acquisition module 2 is in information transmission connection with a remote terminal upper computer, and an information output end of the upper computer is in information transmission connection with the rotary platform 3 and is used for controlling the rotary platform 3 to rotate; the monitoring system also comprises an operating platform 4 which is arranged on one side of the rotating platform 3 and has a rotating function, the operating platform is not connected with a machine tool but is independent of the machine tool, a mechanism is arranged outside a machine tool outer cover, a clamping piece 5 is arranged on the operating platform 4, the gear 10 is transferred through the clamping piece 5, and a measuring component 6 for clamping the gear 10 and measuring an m value is also arranged on the operating platform 4;

what needs to be firstly stated here is how the machine tool processes the gear, and the installation and use of the operating platform, the clamping piece and the rotating platform are all prior art in the field at present, and how to use the structure specifically when processing the gear is all mature technology in the field, so that the present application does not need to be described in detail, the operating platform and the rotating platform can be used by adopting prior art such as a steering engine, and the clamping piece can be selected to be a finger cylinder;

when a machine tool is used for processing a gear, a clamping piece clamps a gear blank on a production line (similar to a belt pulley mechanism for transmitting the gear), an operation platform rotates at the moment, the clamping piece clamping the gear blank is rotated to the position above the rotation platform, the clamping piece loosens the gear at the moment, so that the clamping piece is positioned above the rotation platform, a propping piece (the prior art) is driven to move towards the rotation platform by adopting a hydraulic cylinder or other prior arts in the prior art until the gear is propped, and then the daily processing work can be started;

after the gear is machined, the abutting piece moves towards one end far away from the rotary platform, at the moment, the machined gear is in an active state, the operating platform rotates again, the operating platform drives the measuring assembly to rotate to the position above the rotary platform, then the gear is clamped, the m value of the initially machined gear is measured, the data is transmitted to the upper computer, in the subsequent gear machining process, after the machining is finished, the measuring assembly clamps the subsequent gear again and measures the m value, the data is transmitted to the upper computer, the upper computer compares the m values of the front gear and the rear gear, when the m values of the two gears are in error (more than or equal to 20 microns), the gear machining is stopped, the machine tool is adaptively adjusted and corrected, after the m value is measured, the operating platform rotates reversely again, the clamping piece continues to clamp the gear to be machined to the position above the rotary platform, the subsequent machining work is orderly and normal, after the machining is finished, the m value of the gear is measured by using the measuring assembly, the information is compared with the initially machined gear, the gear can be machined by the clamping piece in a circular operating mode, the gear machining efficiency can be increased, and the gear machining efficiency can be measured by a person in the field (5-3), the gear can be measured).

In this embodiment: the information acquisition module 2 comprises a camera 201 installed on the machine tool 1 and a microprocessor 203 arranged in the camera 201, wherein the camera 202 part of the camera 201 faces the rotary platform 3; the rotary platform 3 comprises a fixed base 301 connected with the machine tool 1 and a workbench 302 arranged on the fixed base 301 and having a rotating function, a working identification line 8 is arranged on the fixed base 301, when the camera 202 captures information of the gear 10 on the rotary platform 3, the microprocessor 203 judges whether a line segment from the circle center of the gear 10 to the tooth top is superposed with the working identification line 8 or not and sends the information to an upper computer, and if the angle error exists between the line segment and the working identification line, the upper computer sends an instruction command to control the workbench 302 to rotate;

the line segment from the circle center of the gear to the tooth top can be defined as a virtual line segment 9, wherein after the gear is placed at the top of the rotary platform, the camera acquires information of the gear, judges whether a working identification line and an adjacent virtual line segment are in a superposition state through a microprocessor, and then sends the information to an upper computer to serve as a judgment basis for the upper computer to send a working instruction to the rotary platform;

through this embodiment, after guaranteeing that the relative position of gear is correct, process it again, can improve the precision of processing, the length direction looks perpendicular of work sign line and lathe.

In this embodiment: the measuring component 6 comprises two supporting plates 601 hinged to each other, wherein one end of one supporting plate 601, which is away from the other supporting plate 601, is provided with an installation platform 19, and the installation platform 19 is detachably connected with the operating platform 4, and the two supporting plates are further limited to be hinged to each other, so that when the number of gear teeth of the gear is odd, the relative angle of the two supporting plates is adjusted, so that when a clamping rod clamps the gear, the clamping rod is positioned on a diameter line of the gear but not on a non-diameter line of the gear, so that the stability in clamping the gear can be further ensured, and when the gear with even number of gear teeth needs to be clamped, the two supporting plates are parallel, and the detachable installation mode (which can be in bolt connection) of the installation platform and the operating platform is provided in the embodiment, so that when the measuring component is damaged, the measuring component can be immediately detached, maintained and replaced; the measuring assembly 6 further comprises a clamping portion 7 arranged below the support plate 601 for clamping the gear 10, and a measuring module 17 arranged on the support plate 601 for measuring the m value of the gear.

The bottom of each supporting plate 601 is provided with a sliding rail 602 and an air cylinder 604 adjacent to the sliding rail 602, a sliding block 603 is arranged on the sliding rail 602 in a sliding manner, the clamping portion 7 is connected with the sliding block 603, a piston rod of the air cylinder 604 is connected with the sliding block 603, and the piston rod of the air cylinder 604 extends and retracts to drive the sliding block 603 to slide on the sliding rail 602, so that the purpose of driving the clamping portion 7 is achieved, and the clamping portion 7 is driven to clamp the gear 10.

The clamping part 7 comprises a clamping rod 703 and a mounting plate 701 detachably connected with the sliding block 603, and the detachable mounting mode is used for detaching and separating the mounting plate on the sliding block immediately when the clamping part needs to be replaced, the detachable mounting mode mentioned in the embodiment can be a bolt connection mode, the bottom of the mounting plate 701 is provided with a sleeve 702, the sleeve 702 is of a hollow structure with an open bottom, a threaded hole communicated with the interior of the sleeve 702 is formed in the sleeve 702, at least part of the clamping rod 703 extends into the sleeve 702, a locking screw is arranged on the threaded hole in a threaded manner and extends into the threaded hole until the locking screw abuts against the clamping rod 703, the embodiment further limits the mounting mode of the clamping rod, and the purpose is that when a single part of the clamping rod is damaged, the clamping rod can be directly detached and replaced, the embodiment extends into the sleeve and rotates to the inner side of the threaded hole by utilizing the locking screw to abut against the clamping rod;

after gear machining finishes, at first operation platform is rotatory, rotates measuring component to rotary platform's top, and the cylinder begins work this moment, and it orders about the slider through the motion of piston rod and slides on the slide rail, then can drive the clamping bar from this and move to reach and utilize relative motion's clamping bar to carry out the centre gripping to the gear, after gear centre gripping finishes, measuring module measures the m value of gear, and with this information transmission to the host computer.

In this embodiment: the mounting plate 701 is provided with lightening holes 11, and the lightening holes are formed in the mounting plate, so that the weight of the mounting plate in the using process is reduced, the working pressure of the cylinder is reduced, and the load of the cylinder is reduced.

In this embodiment: the supporting plate 601 is provided with at least two mounting holes 12 along the thickness direction, which are convenient for the cylinder 604 to mount, and more mounting holes are provided here, so as to satisfy the adjustability of the mounting position of the cylinder as much as possible.

In this embodiment: the opposite ends of the two support plates 601 are respectively provided with a bearing plate 13, the two bearing plates 13 correspond to each other in an up-and-down overlapping manner, a through hole penetrates through the thickness direction of the bearing plate 13, a fixing screw 14 is arranged on the through hole in a matching manner, a locking nut 15 is arranged on the fixing screw 14 in a threaded manner, a first gasket 16 is arranged at the joint of the fixing screw 14 and the bearing plate 13, and a second gasket is arranged at the joint of the locking nut 15 and the bearing plate 13.

In this embodiment: the measuring module 17 comprises a laser displacement sensor 1701 detachably mounted on one of the mounting plates 701, and a laser reflecting plate 1702 detachably mounted on the other mounting plate 701, wherein an information output end of the laser displacement sensor 1701 is in information transmission connection with an upper computer, the laser displacement sensor and the laser reflecting plate are further limited and arranged, and further explained, the laser displacement sensor and the laser reflecting plate are respectively detachably mounted on the mounting plates, so that the laser displacement sensor and the laser reflecting plate can slide along with the sliding block when the mounting plates slide along with the sliding block, the measurement accuracy value is improved as much as possible, the real-time distance between the laser displacement sensor and the laser reflecting plate is recorded according to the position adjustment of the real-time situation, the purpose of intelligently measuring the m value of the gear is achieved, and when the laser displacement sensor is damaged, the laser displacement sensor can be repaired and replaced after being detached on the mounting plate, and the model of the laser displacement sensor can be GV-H45 laser displacement sensor.

In this embodiment: the mounting table 19 comprises a fixed end 1902 connected with the operating platform 4 and a mounting end 1901 vertically mounted on the top of the fixed end 1902, the mounting end 1901 is perforated with a through hole 20 along the height direction thereof, the supporting plate 601 adjacent to the mounting table 19 is provided with an extension 21 extending into the through hole 20 at the end thereof, a limiting plate 18 is arranged at one end of the extension 21 departing from the supporting plate 601, a lifting device 22 is arranged on the top of the fixed end 1902, and the supporting plate 601 adjacent to the mounting table 19 is connected with the lifting end of the lifting device 22;

the lifting device mentioned in this embodiment can also be selected as an air cylinder, an electric cylinder and other prior arts as required, the supporting plate can be driven to lift according to the lifting device, and in the lifting process of the supporting plate, the extension plate can freely lift on the inner side of the through hole to avoid the phenomenon that the supporting plate shakes randomly, and a limiting plate is further arranged on the lifting device to prevent the extension plate from sliding out of the inner side of the through hole, the fixed end is detachably connected with the operating platform, and the lifting end (which can be a piston rod of the air cylinder) of the lifting device is connected with the bottom of the adjacent supporting plate through a bolt;

the embodiment is further provided with a lifting device, a through hole, a mounting end, a fixed end, a limiting plate and an extending part, and aims to adjust the relative height of the clamping rod when the gear is thicker so that the clamping rod is attached to the gear as much as possible along the thickness direction of the gear, thereby improving the clamping stability of the gear as much as possible, and it needs to be further explained here that the clamping rod extends to the tooth root between two adjacent gear teeth, thereby improving the clamping force of the gear as much as possible.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. Gear hobbing machine thermal error monitoring system based on gear m value intelligence is at position measurement, its characterized in that: the gear rotating device comprises an information acquisition module (2) and a rotating platform (3) arranged at an information sampling end of the information acquisition module (2), wherein the rotating platform (3) is used for rotatably supporting a gear (10), an information output end of the information acquisition module (2) is in information transmission connection with a remote terminal upper computer, and an information output end of the upper computer is in information transmission connection with the rotating platform (3) and is used for controlling the rotating platform (3) to rotate;

the monitoring system further comprises an operating platform (4) which is arranged on one side of the rotating platform (3) and has a rotating function, a clamping piece (5) is arranged on the operating platform (4), the gear (10) is transferred through the clamping piece (5), and a measuring assembly (6) for clamping the gear (10) and measuring an m value is further arranged on the operating platform (4);

the information acquisition module (2) comprises a camera (201) arranged on the machine tool (1) and a microprocessor (203) arranged in the camera (201), and the camera (202) of the camera (201) faces the rotary platform (3);

the rotary platform (3) comprises a fixed base (301) connected with the machine tool (1) and a workbench (302) arranged on the fixed base (301) and having a rotary function, wherein a working identification line (8) is arranged on the fixed base (301), when the camera (202) captures information of a gear (10) on the rotary platform (3), whether a line segment from the circle center to the tooth top of the gear (10) is overlapped with the working identification line (8) or not is judged through a microprocessor (203), the information is sent to an upper computer, and if the line segment and the working identification line have an angle error, the upper computer sends an instruction command to control the workbench (302) to rotate;

the measuring assembly (6) comprises two supporting plates (601) which are hinged to each other, wherein one end, away from the other supporting plate (601), of one supporting plate (601) is provided with a mounting table (19), and the mounting table (19) is detachably connected with the operating platform (4);

the measuring assembly (6) further comprises a clamping part (7) arranged below the supporting plate (601) and used for clamping the gear (10), and a measuring module (17) arranged on the supporting plate (601) and used for measuring the m value of the gear.

2. The gear hobbing machine thermal error monitoring system based on intelligent in-place measurement of gear m value as claimed in claim 1, wherein: the bottom of each supporting plate (601) is provided with a sliding rail (602) and an air cylinder (604) arranged adjacent to the sliding rail (602), a sliding block (603) is arranged on the sliding rail (602) in a sliding mode, the clamping portion (7) is connected with the sliding block (603), a piston rod of the air cylinder (604) is connected with the sliding block (603), and a piston rod of the air cylinder (604) stretches and retracts to drive the sliding block (603) to slide on the sliding rail (602), so that the purpose of driving the clamping portion (7) is achieved, and the clamping portion (7) is driven to clamp the gear (10).

3. The gear hobbing machine thermal error monitoring system based on intelligent in-place measurement of gear m value of claim 2, characterized in that: the clamping portion (7) comprises a clamping rod (703) and a mounting plate (701) which is detachably connected with the sliding block (603), a sleeve (702) is arranged at the bottom of the mounting plate (701), the sleeve (702) is of a hollow structure with an open bottom, a threaded hole communicated with the interior of the sleeve (702) is formed in the sleeve (702), at least part of the clamping rod (703) extends into the sleeve (702), a locking screw is arranged on the threaded hole in a threaded mode, and the locking screw extends into the threaded hole until the locking screw abuts against the clamping rod (703).

4. The gear hobbing machine thermal error monitoring system based on intelligent in-place measurement of gear m value of claim 3, characterized in that: the mounting plate (701) is provided with a lightening hole (11).

5. The gear hobbing machine thermal error monitoring system based on intelligent in-place measurement of gear m value of any one of claims 1-4, wherein: the supporting plate (601) penetrates through the supporting plate in the thickness direction to be provided with at least two installation preformed holes (12) which are convenient for the air cylinder (604) to install.

6. The gear hobbing machine thermal error monitoring system based on intelligent in-place measurement of gear m value of claim 5, characterized in that: two the relative one end of backup pad (601) is provided with respectively accepts board (13), and two accept board (13) and be upper and lower coincidence correspondence, the thickness direction of accepting board (13) runs through and has seted up the through-hole, and has set clamping screw (14) on this through-hole, the screw thread sets lock nut (15) on clamping screw (14), clamping screw (14) and the handing-over department of accepting board (13) are provided with first gasket (16), lock nut (15) and the handing-over department of accepting board (13) are provided with the second gasket.

7. The gear hobbing machine thermal error monitoring system based on intelligent in-place measurement of gear m value as claimed in claim 5, wherein: the measuring module (17) comprises a laser displacement sensor (1701) which is detachably mounted on one of the mounting plates (701) and a laser reflecting plate (1702) which is detachably mounted on the other mounting plate (701), and an information output end of the laser displacement sensor (1701) is in information transmission connection with an upper computer.

8. The gear hobbing machine thermal error monitoring system based on intelligent in-place measurement of gear m value as claimed in claim 5, wherein: installing table (19) include stiff end (1902) and the perpendicular installation in installing end (1901) at stiff end (1902) top that meet with operation platform (4), opening (20) have been seted up in its direction of height to installing end (1901) along running through, backup pad (601) adjacent with installing table (19), and its tip is provided with and extends to inside extension (21) of opening (20), and the one end that deviates from backup pad (601) in this extension (21) is provided with limiting plate (18), the top of stiff end (1902) is provided with elevating gear (22), and the lift end that backup pad (601) and elevating gear (22) adjacent with installing table (19) meets.