CN114670059A - Thermal error monitoring system of gear hobbing machine based on intelligent in-situ measurement of gear m value - Google Patents

Abstract

The invention relates to a thermal error monitoring system for a gear hobbing machine based on intelligent in-situ measurement of the m value of gears. The information output end of the remote terminal is connected with the information transmission of the host computer of the remote terminal, and the information output end of the host computer is connected with the information transmission of the rotating platform to control the rotating platform to rotate; the monitoring system also includes a rotating function arranged on one side of the rotating platform. The operating platform is provided with a gripper. The thermal error monitoring system for gear hobbing machines based on the intelligent in-situ measurement of the gear m value, through the cooperation of the information acquisition module, the rotating platform, the operating platform, the gripper and the measuring components, the technical solution of the present application reduces the need for manual measurement of the gear m as much as possible. The process of measuring the value, and adopting intelligent and precise measurement methods, thereby reducing measurement errors and improving work efficiency.

Description

Thermal error monitoring system of gear hobbing machine based on intelligent in-situ measurement of gear m value

technical field

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

Background technique

With the continuous development of the times, the field of machine tool processing has gradually become one of the key directions that contemporary society pays attention to. Among them, when machine tool processing is performed on gears, the current field is through the transmission mechanism. After the gears are transported to the location to be processed, The gear on the transmission mechanism is clamped by the manipulator and other structures, and placed on the gear bearing platform. At this time, the pressing part on the machine tool moves downward to achieve the purpose of clamping and fixing the gear, and then the gear is further processed. processing.

However, in the actual use process of the above technical solutions, some drawbacks have gradually appeared, and the appearance of these drawbacks has led to the traditional gear processing method that can no longer meet the current high-standard use requirements in the field. The disadvantages of the traditional gear processing method are now Make the following specific instructions:

In the process of machine tool processing, the machine tool will generate and accumulate heat, resulting in thermal deformation of the machine tool, which has a direct impact on the size of the workpiece in the process of gear processing. To measure the gear m value, although this method can use the gear m value to feedback the thermal error caused by the thermal deformation of the machine tool to a certain extent, but this manual measurement method has the problem of large error and low efficiency , it cannot solve the problem of m value measurement of pipeline gears in the field of machine tool processing.

It can be seen that it is urgent to design a new thermal error monitoring system of gear hobbing machine based on intelligent in-situ measurement of gear m value to replace manual measurement of m value.

SUMMARY OF THE INVENTION

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

The present invention is achieved through the following technical solutions:

The thermal error monitoring system of gear hobbing machine based on the intelligent in-situ measurement of the gear m value includes an information acquisition module and a rotary platform arranged at the information sampling end of the information acquisition module, and the rotary platform is used for rotating support for the gear, and the information output of the information acquisition module The terminal is connected with the remote terminal host computer for information transmission, and the information output end of the host computer is connected with the information transmission of the rotating platform to control the rotating platform to rotate; the monitoring system also includes an operation platform arranged on one side of the rotating platform with a rotating function , and the operation platform is provided with a clamping piece, which is used to transfer the gear, and a measuring component for clamping the gear and measuring the m value is also arranged on the operation platform.

Further, the information collection module includes a camera installed on the machine tool, and a microprocessor built into the camera, and the camera head portion of the camera faces the rotating platform; the rotating platform includes a fixed base connected with the machine tool, and a worktable with a rotating function arranged on a fixed base, and a work identification line is set on the fixed base. When the camera captures information on the gears on the rotating platform, the microprocessor determines the center of the gear to the tooth Check whether the top line segment coincides with the work identification line, and send this information to the upper computer. If there is an angle error between the two, the upper computer sends an instruction command to control the rotation of the worktable.

Further, the measurement assembly comprises two mutually hinged support plates, wherein one end of the support plate facing away from the other support plate is provided with a mounting platform, and the mounting platform is detachably connected with the operation platform; The measuring assembly further includes a clamping part disposed under the support plate for clamping the gear, and a measuring module disposed on the support plate for measuring the m value of the gear.

Further, the bottom of each support plate is provided with a slide rail, and a cylinder arranged adjacent to the slide rail, the slide rail is slidably equipped with a slider, the clamping portion is connected with the slider, the The piston rod of the air cylinder is connected with the slider, and the piston rod of the cylinder expands and contracts to drive the slider to slide on the slide rail, so as to achieve the purpose of driving the clamping part and drive the clamping part to clamp the gear.

Further, the clamping part includes a clamping rod and a mounting plate that is detachably connected to the slider, the bottom of the mounting plate is provided with a sleeve, and the sleeve is a hollow structure with an open bottom, the sleeve is The pipe is provided with a threaded hole that communicates with the inside thereof, the clamping rod at least partially extends to the inside of the casing, the thread of the threaded hole is provided with a locking screw, and the screw thread of the locking screw extends to the inside of the threaded hole until it reaches the inside of the threaded hole. Tighten the clamp bar.

Further, the mounting plate is provided with a weight-reducing hole.

Further, the support plate is provided with at least two installation reserved holes along the thickness direction thereof, which are convenient for the installation of the air cylinder.

Further, the opposite ends of the two support plates are respectively provided with a receiving plate, and the two receiving plates are overlapped up and down correspondingly, a through hole is formed through the thickness direction of the receiving plate, and the through hole is equipped with a fixed screw A locking nut is arranged on the thread of the fixing screw, a first gasket is arranged at the junction of the fixing screw and the receiving plate, and a second gasket is arranged at the junction of the locking nut and the bearing plate.

Further, the measurement module includes a laser displacement sensor detachably mounted on one of the mounting boards, and a laser reflection plate detachably mounted on the other mounting board, the information of the laser displacement sensor The output end is connected with the upper computer for information transmission.

Further, the installation table includes a fixed end connected to the operating platform and a mounting end vertically installed on the top of the fixed end, the installation end is provided with a through opening along its height direction, and the support plate adjacent to the installation table is The end is provided with an extension extending to the inside of the opening, and the end of the extension away from the support plate is provided with a limit plate, the top of the fixed end is provided with a lifting device, and the support plate adjacent to the installation platform and the lifting device are lifted and lowered. end connected.

The beneficial effects of the present invention are:

The gear hobbing machine thermal error monitoring system based on the intelligent in-situ measurement of the gear m value is used in conjunction with the information acquisition module, the rotating platform, the operation platform, the gripper and the measuring component. It is transferred to the rotating platform. After the gear is processed, the information acquisition module first judges the position of the gear, and transmits this information to the upper computer. The upper computer controls the rotating platform to rotate to meet the measurement requirements of the gear m value. Then, under the action of the measuring component, the m value of the gear to be measured is measured. The technical solution of the present application is to compare the m value of the gear in the post-processing process of the machine tool with the m value of the initially processed gear, so as to achieve the intelligent measurement of the m value of the gear. , and compared to meet the purpose of effective monitoring and judgment of the thermal error of the gear hobbing machine in real time. Reduce measurement errors and improve work efficiency.

Other advantages, objects, and features of the present invention will be set forth in the description that follows, and will be apparent to those skilled in the art based on a study of the following, to the extent that is taught in the practice of the present invention. The objectives and other advantages of the present invention may be realized and attained by the following description.

Description of drawings

Fig. 1 is the partial three-dimensional schematic diagram of the present invention;

Fig. 2 is the measuring assembly of the present invention and the partial three-dimensional schematic diagram 1 of the installation platform;

FIG. 3 is a partial perspective view II of the measuring assembly and the installation platform of the present invention;

FIG. 4 is a partial three-dimensional schematic view III of the measuring assembly and the installation platform of the present invention;

Fig. 5 is the partial schematic diagram of the information collection module of the present invention;

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

7 is a schematic diagram showing that the identification line and the virtual line segment of the present invention do not overlap;

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

In the figure: 1. machine tool; 2. information acquisition module; 201, camera; 202, camera; 203, microprocessor; 3, rotating platform; 301, fixed base; 302, workbench; 4, operating platform; 5, Clamping piece; 6. Measuring assembly; 601, Support plate; 602, Slide rail; 603, Slider; 604, Cylinder; 7, Clamping part; 701, Mounting plate; 702, Sleeve; 703, Clamp rod; 8 , identification line; 9, virtual line segment; 10, gear; 11, weight reduction hole; 12, reserved hole for installation; 13, receiving plate; 14, fixing screw; 15, locking nut; 16, first gasket; 17 , measurement module; 1701, laser displacement sensor; 1702, laser reflector; 18, limit plate; 19, installation table; 1901, installation end; 1902, fixed end; 20, port; 21, extension part; 22, lift device.

Detailed ways

In order to make the purposes, 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 accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

Thus, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the above description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "one side", "the other side", etc. is based on the orientation or positional relationship shown in the drawings, or when the product of the invention is used. The usual orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a Invention limitations. Furthermore, the terms "first", "second", etc. are only used to differentiate the description and should not be construed to indicate or imply relative importance.

Furthermore, terms such as the term "identical" do not imply that the components are required to be absolutely identical, but minor differences may exist. The term "perpendicular" simply means that the positional relationship between components is more vertical than "parallel", and does not mean that the structure must be completely vertical, but may be slightly inclined.

1-8, the present invention provides a technical solution: a gear hobbing machine thermal error monitoring system based on intelligent in-situ measurement of the gear m value, comprising an information acquisition module 2, a rotary platform 3 disposed at the information sampling end of the information acquisition module 2, and The rotating platform 3 is used for rotating support for the gear 10, the information output end of the information acquisition module 2 is connected with the remote terminal host computer for information transmission, and the information output end of the host computer is connected with the rotating platform 3 for information transmission for controlling The rotating platform 3 rotates; the monitoring system also includes an operating platform 4 with a rotating function arranged on one side of the rotating platform 3. The operating platform is not connected to the machine tool, but is independent of the machine tool and is provided outside the machine tool housing. A mechanism, and operates The platform 4 is provided with a clamping member 5, through which the clamping member 5 is used to transfer the gear 10, and the operation platform 4 is also provided with a measuring assembly 6 for clamping the gear 10 and measuring the m value;

What needs to be stated first here is how the machine tool processes the gears, and the installation and use of the operating platform, the gripper and the rotating platform, which are all existing technologies in the field, and how to use them when processing the gears. The above structures are all mature technologies in the field, so this application does not need to go into details about this, the operating platform and the rotating platform can be used by existing technologies such as steering gears, and the gripper can be selected as a finger cylinder;

When the machine tool is processing the gear, the gripper here firstly clamps the gear blank on the production line (similar to the transmission of the gear by the pulley mechanism), and the operating platform rotates at this time to clamp the gear blank. At this time, the gripping member releases the gear, so that the gripping member is located above the rotating platform. At this time, a hydraulic cylinder or other prior art is used in the prior art to drive the abutting member (now With technology) move to the rotating platform until the gears are pressed tightly, and then the daily processing work can be started;

When the gear is processed, the abutting member moves to the end away from the rotating platform. At this time, the first processed gear is in an active state, and the operating platform rotates again, which drives the measuring component to rotate to the top of the rotating platform, and then clamps the gear first. , and then measure the m value of the initially processed gear, and transmit this data to the host computer. Then in the subsequent gear processing process, when the processing is completed, the measuring component clamps the subsequent gear again and measures the m value, And transmit this data to the host computer. The host computer compares the m values of different gears before and after. When there is an error in the m values of the two (≥20um), the processing of the gears is stopped, and the machine tool is adaptively adjusted, Correction, when the m value is measured, the operating platform rotates in the opposite direction again, the gripper continues to grip the gear to be processed to the top of the rotating platform, and the subsequent processing work is carried out in an orderly and normal manner. The component measures the m value of the gear, and transmits the information to the host computer for comparison with the initially processed gear. This is a cyclic operation mode, and those skilled in the art can also set the measurement component, without the need for each For gear measurement, after processing 3-5 gears (the specific operation can be judged and selected according to the real-time situation in the field), the m value measurement of the gear can also be carried out by using the measuring component, which can reduce the workload and improve the work efficiency.

In this embodiment: the information collection module 2 includes a camera 201 installed on the machine tool 1, and a microprocessor 203 built in the camera 201, and the camera 202 of the camera 201 faces the rotating platform 3; The connected fixed base 301, and a worktable 302 with a rotating function arranged on the fixed base 301, the fixed base 301 is provided with a work identification line 8, when the camera 202 captures the information on the gear 10 on the rotating platform 3 At the time, the microprocessor 203 judges whether the line segment from the center of the gear 10 to the top of the tooth coincides with the work identification line 8, and sends this information to the upper computer, if there is an angle error between the two, the upper computer issues an instruction command to control the workbench 302 rotate;

The line segment from the center of the gear circle to the top of the tooth can be defined as a virtual line segment 9. Here, when the gear is placed on the top of the rotating platform, the camera collects information on the gear, and the microprocessor determines whether the working identification line and the adjacent virtual line segment are in the same position. Coincidence state, then send this information to the host computer, as the basis for the host computer to issue work instructions to the rotating platform;

With this embodiment, after ensuring the correct relative position of the gears, the machining accuracy can be improved, and the working identification line is perpendicular to the length direction of the machine tool.

In this embodiment, the measuring assembly 6 includes two mutually hinged support plates 601, one end of one support plate 601 facing away from the other support plate 601 is provided with a mounting table 19, and the mounting table 19 is detachably connected to the operation platform 4-phase connection, here it is further defined that the two support plates are hinged to each other. The purpose is to adjust the relative angle of the two support plates when the number of teeth of the gear is odd, so as to meet the requirements of the clamping rod when clamping the gear. It clamps the gear on the diameter line of the gear instead of the non-diameter line of the gear, which can further ensure the stability when clamping the gear, and when the gear with an even number of teeth needs to be clamped When clamping, the two support plates can be parallel, and the detachable installation method (which can be bolted) of the installation platform and the operation platform mentioned in this embodiment is to prevent the measurement component from being damaged. It is then disassembled, repaired and replaced; the measuring assembly 6 also includes a clamping portion 7 disposed under the support plate 601 for clamping the gear 10, and disposed on the support plate 601 for measuring the gear m value. The measurement module 17.

The bottom of each support plate 601 is provided with a slide rail 602, and a cylinder 604 arranged adjacent to the slide rail 602. The slide rail 602 is slidably provided with a slide block 603, and the clamping portion 7 is connected with the slide block 603. The cylinder 604 The piston rod is connected to the slider 603, and the piston rod of the cylinder 604 expands and contracts, which drives the slider 603 to slide on the slide rail 602, so as to achieve the purpose of driving the clamping part 7 and drive the clamping part 7 to clamp the gear 10. tight.

The clamping part 7 includes a clamping rod 703 and a mounting plate 701 which is detachably connected with the slider 603. The purpose of this detachable installation is that when the clamping part needs to be replaced, the mounting plate can be immediately attached to the slider. The upper part can be disassembled and separated. The detachable installation method mentioned in this embodiment can be bolted. The bottom of the installation plate 701 is provided with a sleeve 702, and the sleeve 702 is a hollow structure with an open bottom. 702 is provided with a threaded hole that communicates with the inside thereof, the clamping rod 703 extends at least partially to the inside of the sleeve 702, the thread of the threaded hole is provided with a locking screw, and the thread of the locking screw extends to the inside of the threaded hole until it is in contact with the clamp. The rods 703 are pressed against each other. This embodiment further defines the installation method of the clamp rod. The purpose is that when a single part of the clamp rod is damaged, it can be directly disassembled, separated and replaced. In this embodiment, the clamp rod is extended into the To the inside of the casing, and use the locking screw thread to rotate to the inside of the threaded hole, the installation method of pressing the clamp rod;

When the gear is processed, firstly, the operating platform rotates, and the measuring assembly is rotated to the top of the rotating platform. At this time, the cylinder starts to work. It drives the slider to slide on the slide rail through the movement of the piston rod, which can drive the clamping rod. Move to achieve the clamping of the gear by the relatively moving clamping rod. After the clamping of the gear is completed, the measurement module measures the m value of the gear, and transmits this information to the host computer.

In this embodiment, the mounting plate 701 is provided with a weight-reducing hole 11, where the weight-reducing hole is opened, the purpose of which is to reduce the weight of the mounting plate during use, reduce the working pressure of the cylinder, and reduce the load of the cylinder.

In this embodiment, the support plate 601 is provided with at least two installation reserved holes 12 along the thickness direction of the support plate 601 to facilitate the installation of the cylinder 604 , and more installation reserved holes are provided here to meet the requirements of the cylinder The installation position can be adjusted.

In this embodiment, the opposite ends of the two supporting plates 601 are respectively provided with receiving plates 13, and the two receiving plates 13 are overlapped up and down correspondingly. There is a fixing screw 14, a locking nut 15 is arranged on the thread of the fixing screw 14, a first washer 16 is arranged at the intersection of the fixing screw 14 and the receiving plate 13, and a first washer 16 is arranged at the intersection of the locking nut 15 and the receiving plate 13. Two gaskets, when the relative position of the two support plates needs to be adjusted, the locking nut can be loosened first, so that the fixing screw is in an active state, and at this time, the two support plates are rotated relative to each other, so that the two support plates have corresponding angle, then tighten the lock nut, the first washer and the second washer mentioned here, the purpose is to reduce the friction force between the fixed screw and the lock nut on the support plate, and avoid damage to the support plate as much as possible, The first gasket and the second gasket can be made of rubber. As for the angle to which the two support plates are rotated, it can be manually judged, adjusted, tried and rotated according to the real-time situation.

In this embodiment, the measurement module 17 includes a laser displacement sensor 1701 detachably mounted on one of the mounting boards 701, and a laser reflection plate 1702 detachably mounted on the other mounting board 701. The laser The information output end of the displacement sensor 1701 is connected to the information transmission of the upper computer. Here, it is further defined that a laser displacement sensor and a laser reflector are provided, and it is further explained that the above two are respectively detachable and installed on the mounting plate, so that the installation can be satisfied. When the plate slides with the slider, the laser displacement sensor and the laser reflector also slide together, thereby improving the measurement accuracy as much as possible. The laser displacement sensor adjusts the position according to the real-time situation and records the distance between it and the laser reflector. The real-time distance of the gear can achieve the purpose of intelligently measuring the m value of the gear. When the laser displacement sensor is damaged, it can be removed from the mounting plate and then repaired and replaced. The model of the laser displacement sensor can be GV-H45 Laser Displacement Sensor.

In this embodiment, the installation table 19 includes a fixed end 1902 connected to the operation platform 4 and an installation end 1901 vertically installed on the top of the fixed end 1902 . The end of the adjacent support plate 601 is provided with an extension portion 21 extending to the inside of the through port 20 , and the end of the extension portion 21 away from the support plate 601 is provided with a limiting plate 18 , and the top of the fixed end 1902 is provided with a lifting device 22 , which is in contact with the support plate 601 adjacent to the installation platform 19 and the lifting end of the lifting device 22;

The lifting device mentioned in this embodiment can also be selected from existing technologies such as air cylinders and electric cylinders according to needs. Here, the lifting device can be used to drive the support plate to lift. The plate is free to rise and fall on the inside of the opening to avoid the random shaking of the support plate during the lifting process, and a limit plate is further set here, the purpose is to prevent the extension plate from sliding out of the inside of the opening, and the fixed end is It is detachably connected with the operating platform, and the lifting end of the lifting device (can be the piston rod of the cylinder) is connected with the bottom of the adjacent support plate by bolts;

The present embodiment is further provided with a lifting device, a port, an installation end, a fixed end, a limit plate and an extension part. The purpose is to adjust the relative height of the clamping rod when the thickness of the gear is thick, so that the clamping rod can move along the gear. The thickness direction of the gears fits the gears as much as possible, so as to improve the clamping stability of the gears as much as possible, and it needs to be further explained here that the clamping rods extend between two adjacent gear teeth. At the root of the tooth, thereby increasing the clamping force of the gear as much as possible.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be Modifications or equivalent substitutions without departing from the spirit and scope of the technical solutions of the present invention should be included in the scope of the claims of the present invention.

Claims (10)

1. The thermal error monitoring system of gear hobbing machine based on the intelligent in-situ measurement of the gear m value is characterized in that: it comprises an information acquisition module (2), a rotary platform (3) arranged at the information sampling end of the information acquisition module (2), and the rotary platform (3) It is used to rotate the gear (10), the information output end of the information acquisition module (2) is connected to the information transmission of the remote terminal host computer, and the information output end of the host computer is connected to the rotary platform (3) for information transmission connected to control the rotation of the rotating platform (3); the monitoring system also includes an operating platform (4) with a rotating function arranged on one side of the rotating platform (3), and a gripper (4) is provided on the operating platform (4). 5), the gripper (5) is used to transfer the gear (10), and the operating platform (4) is also provided with a measuring assembly (6) for clamping the gear (10) and measuring the m value . 2. The thermal error monitoring system for gear hobbing machines based on intelligent in-situ measurement of gear m value according to claim 1, wherein the information acquisition module (2) comprises a camera (201) installed on the machine tool (1), and a microprocessor (203) built in the camera (201), the camera head (202) of the camera (201) is facing the rotating platform (3); the rotating platform (3) includes a phase with the machine tool (1) A connected fixed base (301), and a worktable (302) with a rotating function arranged on the fixed base (301), the fixed base (301) is provided with a work identification line (8), when the When the camera (202) captures information on the gear (10) on the rotating platform (3), the microprocessor (203) judges whether the line segment from the center of the gear (10) to the tip of the tooth coincides with the working identification line (8), and This information is sent to the upper computer, and if there is an angle error between the two, the upper computer sends an instruction command to control the rotation of the worktable (302). 3. The thermal error monitoring system for gear hobbing machines based on intelligent in-situ measurement of gear m value according to claim 2, wherein the measurement assembly (6) comprises two mutually hinged support plates (601), one of which is One end of the support plate (601) facing away from the other support plate (601) is provided with a mounting table (19), and the mounting table (19) is detachably connected with the operation platform (4); the measurement The assembly (6) further comprises a clamping part (7) arranged under the support plate (601) for clamping the gear (10), and a clamping part (7) arranged on the support plate (601) for measuring the gear m value Measurement module (17). 4. The thermal error monitoring system for gear hobbing machines based on intelligent in-situ measurement of gear m value according to claim 3, characterized in that: the bottom of each support plate (601) is provided with a sliding rail (602), and a sliding rail (602) is provided at the bottom of each supporting plate (601), A cylinder (604) is arranged adjacent to the rail (602), a sliding block (603) is slidably arranged on the sliding rail (602), the clamping part (7) is connected with the sliding block (603), and the The piston rod of the cylinder (604) is connected to the slider (603), and the piston rod of the cylinder (604) is stretched and retracted to drive the slider (603) to slide on the slide rail (602), so as to reach the clamping part (702). ) for the purpose of driving, to drive the clamping part (7) to clamp the gear (10). 5. The thermal error monitoring system for gear hobbing machines based on intelligent in-situ measurement of gear m value according to claim 4, wherein the clamping part (7) comprises a clamping rod (703) and a sliding block (603) A mounting plate (701) connected in a detachable manner, the bottom of the mounting plate (701) is provided with a sleeve (702), and the sleeve (702) is a hollow structure with an open bottom, the sleeve (702) ) is provided with a threaded hole communicating with the inside thereof, the clamping rod (703) at least partially extends to the inside of the sleeve (702), the thread of the threaded hole is provided with a locking screw, and the screw thread of the locking screw extends to the thread inside the hole until it abuts against the clamp bar (703). 6 . The thermal error monitoring system for gear hobbing machines based on intelligent in-situ measurement of gear m value according to claim 5 , wherein the mounting plate ( 701 ) is provided with a weight reduction hole ( 11 ). 7 . 7. The thermal error monitoring system for a gear hobbing machine based on intelligent in-situ measurement of the gear m value according to any one of claims 3-6, characterized in that: the support plate (601) is provided with at least two penetrating openings along its thickness direction. The mounting holes (12) are convenient for the installation of the cylinder (604). 8 . The thermal error monitoring system for gear hobbing machines based on intelligent in-situ measurement of gear m value according to claim 7 , wherein the opposite ends of the two support plates ( 601 ) are respectively provided with receiving plates ( 13 ), and The two receiving plates (13) are overlapped up and down correspondingly, a through hole is formed through the thickness direction of the receiving plate (13), and a fixing screw (14) is arranged on the through hole, and the fixing screw (14) is on the The thread is provided with a locking nut (15), a first washer (16) is provided at the junction of the fixing screw (14) and the receiving plate (13), and the locking nut (15) is connected to the receiving plate (13). ) is provided with a second gasket. 9 . The thermal error monitoring system for gear hobbing machines based on intelligent in-situ measurement of gear m value according to claim 7 , wherein the measurement module ( 17 ) comprises a detachable mounting plate ( 701 ) mounted on one of the mounting plates ( 701 ). 10 . The laser displacement sensor (1701) on the laser displacement sensor (1701), and the laser reflection plate (1702) detachably installed on the other mounting plate (701), the information output end of the laser displacement sensor (1701) is connected with the information of the host computer transport connection. 10. The thermal error monitoring system for gear hobbing machines based on intelligent in-situ measurement of gear m-value according to claim 7, wherein the installation platform (19) comprises a fixed end (1902) connected to the operation platform (4). and a mounting end (1901) vertically mounted on the top of the fixed end (1902), the mounting end (1901) is provided with a through opening (20) along its height direction, and a support plate (601) adjacent to the mounting table (19) ), its end is provided with an extension (21) extending to the interior of the through port (20), and a limiting plate (18) is provided at one end of the extension (21) away from the support plate (601), and the fixed end ( 1902) is provided with a lifting device (22) at the top, which is in contact with the supporting plate (601) adjacent to the mounting table (19) and the lifting end of the lifting device (22).

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