Gear hobbing machine tool rest driven by built-in motor

Abstract

The invention discloses a gear hobbing machine tool rest driven by a built-in motor, and belongs to the technical field of machine tool machining. The gear hobbing machine tool rest comprises a mounting base, a rotating disc is arranged at the front end of the mounting base, a hobbing cutter is arranged at the front end of the rotating disc, supporting plates are rotationally mounted at the two ends of the upper end of the hobbing cutter, and the supporting plates are fixedly connected with the rotating disc; and a first driving motor is further mounted on the rotating disc. By recording the magnitude and direction of the vibration force of the rotating disc in the X-axis direction and the Y-axis direction at each moment and the information of the corresponding stability control assembly, the system can introduce current into the corresponding electromagnet in advance before the rotating disc vibrates at the next moment, so that the vibration force about to be generated by the rotating disc is accurately counteracted; therefore, the vibration amplitude of the rotating disc is reduced more effectively, accurate control over vibration is achieved, the response time of the system to vibration is greatly shortened, the rotating disc can recover to the stable state more quickly, and the adverse effect caused by vibration of the hob is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of machine tool processing, and more specifically, to a hob headstock driven by an internal motor. Background Art

[0002] A hobber is a machine tool specifically used for machining gears and is the most widely used in gear processing machine tools. The working principle of the hobber is based on the relative movement between the hob and the workpiece. By means of hobbing, the tooth profile of the gear can be accurately machined. The tooth profile of the hob consists of a set of precision blades, which match the tooth profile of the gear to be machined. When the hob rolls along the surface of the workpiece, the tooth profile of the workpiece can be machined. This machining method not only has high efficiency, but also high precision and good surface quality, and is the mainstream technology in modern gear processing.

[0003] The hob is usually installed on the headstock. By adjusting the headstock, the hob can be flexibly adjusted in position and angle to meet different processing requirements. That is to say, the headstock can be movable. Compared with the traditional design in which the headstock is completely fixed, this movable headstock structure provides greater flexibility, but also brings some problems. That is, during the machining process, the headstock may vibrate. This vibration is caused by the incomplete fastening of the headstock fixing device, the insufficient rigidity of the headstock structure, or the dynamic force generated during the machining process.

[0004] The vibration of the headstock causes a slight change in the relative position between the hob and the workpiece, which in turn affects the accuracy of the tooth profile. In the machining of precision gears, such a slight error may be amplified, resulting in poor meshing of the gears, increased noise, and even affecting the operating performance of the entire mechanical system. Summary of the Invention

[0005] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a hob headstock driven by an internal motor, which can record the magnitude, direction of the vibration force of the rotating disk in the X and Y axis directions and the corresponding stability control component information at each moment. The system can pass current into the corresponding electromagnet in advance before the rotating disk vibrates at the next moment, accurately cancel the vibration force that the rotating disk is about to generate, so as to more effectively reduce the vibration amplitude of the rotating disk, achieve precise control of the vibration, greatly shorten the response time of the system to the vibration, enable the rotating disk to return to the stable state faster, and reduce the adverse effects brought by the vibration of the hob.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A hob headstock driven by an internal motor includes a mounting base. A rotating disk is provided at the front end of the mounting base. A hob is provided on the front end of the rotating disk. Support plates are rotatably installed at both upper ends of the hob. The support plates are fixedly connected to the rotating disk. A first driving motor is also installed on the rotating disk. The first driving motor is used to drive the hob to rotate. A feed component is installed at the lower end of the mounting base. The feed component is used to control the feed force of the hob. A rotation component is installed on the back of the mounting base. The rotation component is used to drive the rotating disk to rotate;

[0008] A torque sensor is installed between the first driving motor and the transmission component of the hob. One set of the support plates consists of a stress plate and a pressure plate. A pressure sensor is installed between the stress plate and the pressure plate;

[0009] The range of the feed force of the hob and the preset torque range value for the first driving motor to drive the hob to process the workpiece are set in advance. If the torque value detected by the torque sensor is higher than the preset torque range value, the feed component reduces the feed force; if the torque value detected by the torque sensor is lower than the preset torque range value, the feed component increases the feed force;

[0010] A vibration sensor is installed at a position near the center of the front end face of the rotating disk. There are multiple groups of stability control components on the front end face of the mounting base. The stability control components are used to adjust the extrusion force on the rotating disk. By detecting the data through the vibration sensor, the corresponding stability control components are controlled to apply corresponding forces to the rotating disk.

[0011] Further, if the feed component is adjusted according to the preset feed force range and the torque value detected by the torque sensor is not within the preset torque range value, it is determined that the first driving motor and the hob are damaged.

[0012] Further, there are four groups of the stability control components, and the four groups of stability control components are evenly distributed in a ring on the outer circumferential surface of the rotating disk. The stability control component includes an extrusion plate. The extrusion plate is slidably installed on the mounting base. A telescopic column is fixedly connected to one side surface of the extrusion plate. A housing is sleeved at one end of the telescopic column away from the extrusion plate. The outer wall of the housing is fixedly connected to the rotating disk. A permanent magnetic disk is fixedly connected to one end of the telescopic column away from the extrusion plate. An electromagnet is arranged on one side of the permanent magnetic disk away from the telescopic column. The electromagnet is fixedly connected to the inner wall of the housing. A spring is sleeved on the telescopic column. The spring is arranged inside the housing.

[0013] Further, the weight of the rotating disk and the weight of the components installed on the rotating disk are determined in advance to obtain the total weight. The acceleration data in the X and Y axis directions of the rotating disk at each moment are obtained through the vibration sensor. According to Newton's second law , combining the acquired acceleration data in the X and Y axis directions and the total weight, calculate the vibration force magnitudes in the X and Y axis directions of the rotating disk and the directions of the vibration forces on the X and Y axes, and obtain the corresponding stability control components according to the directions of the vibration forces on the X and Y axes.

[0014] Further, quantitatively determine the relationship between the current of the electromagnet in the stability control component and the extrusion force exerted by the telescopic column on the outside through experiments in advance. By applying different magnitudes of current to the electromagnet and measuring the extrusion force values exerted by the telescopic column on the outside under the corresponding currents, establish the mapping relationship between the current of the electromagnet and the extrusion force .

[0015] Further, according to the magnitudes, directions of the vibration forces on the X and Y axes and the corresponding stability control components calculated, determine the extrusion force that the corresponding stability control component needs to exert on the rotating disk , and through the extrusion force and the current and the mapping relationship between the extrusion force , obtain the magnitude of the current that needs to be passed into the electromagnet in the stability control component.

[0016] Further, record the magnitudes, directions of the vibration forces in the X and Y axis directions of the rotating disk and the corresponding stability control components at each moment. According to the period of the vibration frequency of the rotating disk and the recorded data, pass the corresponding magnitude of current into the corresponding electromagnet in advance before the rotating disk vibrates at the next moment.

[0017] Further, according to the maximum current allowed to pass through the electromagnet and the mapping relationship between the current of the electromagnet and the extrusion force , obtain the maximum extrusion force exerted by the stability control component on the outside. Compare the magnitudes of the vibration forces on the X and Y axes calculated with the maximum extrusion force exerted by the stability control component on the outside. If the vibration forces on the X and Y axes are greater than the maximum extrusion force exerted by the stability control component on the outside, trigger an alarm; if the vibration forces on the X and Y axes are less than the maximum extrusion force exerted by the stability control component on the outside, pass the corresponding magnitude of current into the electromagnet.

[0018] Further, the rotation component includes a servo motor, the servo motor is installed on the back of the mounting base, a gear is installed at the output end of the servo motor, a rotating shaft is meshed and connected at the outer circle of the gear, and one end of the rotating shaft movably penetrates through the mounting base and is fixedly connected to the rotating disk.

[0019] Further, the feed component includes a lead screw, the lead screw is arranged in the lower half of the mounting base, both ends of the lead screw penetrate through the mounting base and extend to the outside, the lead screw is in threaded transmission connection with the mounting base, and a second driving motor is installed at one end of the lead screw.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] (1) By recording the vibration force magnitude, direction, and corresponding stability control component information of the rotating disk in the X and Y-axis directions at each moment, the system can advance the current into the corresponding electromagnet before the rotating disk vibrates at the next moment, accurately canceling the vibration force that the rotating disk is about to generate, thereby more effectively reducing the vibration amplitude of the rotating disk, achieving precise control of vibration, greatly shortening the system's response time to vibration, enabling the rotating disk to return to a stable state faster, and reducing the adverse effects of vibration on the hob.

[0022] (2) Through the real-time feedback of the torque sensor and the pressure sensor, the system can automatically adjust the feeding force of the hob, ensuring that the best cutting conditions are always maintained during the machining process, improving the machining efficiency while ensuring the machining accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 It is the external view of the overall structure of the present invention;

[0025] Figure 2 It is the rear view of the overall structure of the present invention;

[0026] Figure 3 It is the structural view at the vibration sensor of the present invention;

[0027] Figure 4 It is the split view of the support plate of the present invention;

[0028] Figure 5 It is the sectional view of the interior of the housing of the present invention.

[0029] Explanation of the reference numerals in the drawings:

[0030] 1. Mounting base; 2. Rotating disk; 3. Hob; 4. Support plate; 41. Force-bearing plate; 42. Pressure plate; 5. Second driving motor; 6. Lead screw; 7. Rotating shaft; 8. Gear; 9. Servo motor; 10. Torque sensor; 11. Vibration sensor; 12. Pressure sensor; 13. Extrusion plate; 14. Telescopic column; 15. Spring; 16. Permanent magnetic disk; 17. Electromagnet; 18. Housing; 19. First driving motor. DETAILED DESCRIPTION OF THE INVENTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. 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.

[0032] Please refer to Figures 1 to 5 , a hob headstock driven by an internal motor, including a mounting base 1. A rotating disk 2 is provided at the front end of the mounting base 1. A hob 3 is provided on the front end of the rotating disk 2. Support plates 4 are rotatably installed at both upper ends of the hob 3. The support plates 4 are fixedly connected to the rotating disk 2. A first drive motor 19 is also installed on the rotating disk 2. The first drive motor 19 is used to drive the hob 3 to rotate. A feed component is installed at the lower end of the mounting base 1. The feed component is used to control the feed force of the hob 3. The feed component includes a lead screw 6. The lead screw 6 is arranged in the lower half of the mounting base 1. Both ends of the lead screw 6 penetrate through the mounting base 1 and extend to the outside. The lead screw 6 is in threaded transmission connection with the mounting base 1. A second drive motor 5 is installed at one end of the lead screw 6;

[0033] A rotating component is installed on the back of the mounting base 1. The rotating component is used to drive the rotating disk 2 to rotate. The rotating component includes a servo motor 9. The servo motor 9 is installed on the back of the mounting base 1. A gear 8 is installed at the output end of the servo motor 9. A rotating shaft 7 is meshed and connected to the outer circle of the gear 8. One end of the rotating shaft 7 movably penetrates through the mounting base 1 and is fixedly connected to the rotating disk 2;

[0034] A torque sensor 10 is installed between the transmission component of the first drive motor 19 and the hob 3. One group of support plates 4 is composed of a stress plate 41 and a pressure plate 42. A pressure sensor 12 is installed between the stress plate 41 and the pressure plate 42;

[0035] The range of the feed force of the hob 3 and the torque range value of the first drive motor 19 for driving the hob 3 to process workpieces are preset in advance. If the torque value detected by the torque sensor 10 is higher than the preset torque range value, the feed component reduces the feed force; if the torque value detected by the torque sensor 10 is lower than the preset torque range value, the feed component increases the feed force.

[0036] First of all, it should be noted that the mounting base 1 of the present invention is installed at the machining position of the hobbing machine. During operation, the second driving motor 5 controls the forward and reverse rotation of the lead screw 6. By the forward and reverse rotation of the lead screw 6, the mounting base 1 can be controlled to move left and right. When the mounting base 1 moves left and right, it will drive the hob 3 to move left and right. Through the left and right movement of the hob 3, the tool feeding operation can be realized. When the angle of the hob 3 needs to be adjusted, the servo motor 9 controls the forward and reverse rotation of the gear 8. When the gear 8 rotates forward and backward, it will drive the engaged rotating shaft 7 to rotate forward and backward. During the forward and reverse rotation of the rotating shaft 7, it will drive the rotating disk 2 to rotate forward and backward. During the forward and reverse rotation of the rotating disk 2, it will drive the hob 3 to rotate, so as to realize the angle adjustment of the hob 3. After the adjustment is completed, the servo motor 9 can be locked by program control to prevent the rotation of the rotating shaft 7 from affecting the adjusted angle of the hob 3. The first driving motor 19 controls the hob 3 to rotate self - sufficiently, and the cutting of the workpiece is realized through the self - rotation of the hob 3. When feeding, the hob 3 exerts pressure on the workpiece. Through the transmission and interaction of forces, the applied extrusion force is transmitted to the pressure plate 42, and the pressure sensor 12 will detect the force applied by the pressure plate 42, that is, the tool feeding force. When the first driving motor 19 drives the hob 3 to rotate, the torque sensor 10 will detect the torque force received by the first driving motor 19. Before operation, the range of the tool feeding force is set in advance. This force range can be obtained through experiments. In addition, according to the output power when the first driving motor 19 operates stably, the torque range value when the first driving motor 19 drives the hob 3 to machine the workpiece is set. When machining the workpiece, if the pressure sensor 12 detects that the tool feeding force is too large, the forward and reverse rotation of the lead screw 6 is controlled to control the movement of the mounting base 1 and control the tool feeding force within a suitable range; when machining the workpiece, if the value detected by the pressure sensor 12 is within the preset tool feeding force range, while the torque value detected by the torque sensor 10 is lower than the preset torque value, at this time, the tool feeding force can be automatically increased within the preset tool feeding force range, so as to ensure that the highest machining efficiency can be automatically provided for the workpiece during the stable machining process.

[0037] Figures 1 to 5 If the feed component is adjusted according to the preset range of the tool feeding force, and the torque value detected by the torque sensor 10 is not within the preset torque range value, it is determined that the first driving motor 19 and the hob 3 are damaged.

[0038] When processing a workpiece, if the feed component is adjusted within the range of the feed force, and if the torque value detected by the torque sensor 10 is not within the preset torque range value, or if the detected torque value range fluctuates or is unstable, it can be determined that one of the first drive motor 19 and the hob 3 has a problem. For example, when the hob 3 is damaged, its ability to cut the workpiece will be greatly reduced, resulting in an increase in the frictional force during cutting. This will cause the torque sensor 10 to detect an increase in force during workpiece processing, and finally it will not be within the torque preset range value. Another example is that when the first drive motor 19 is damaged, the detected value by the torque sensor 10 will fluctuate, or the output torque of the first drive motor 19 is too large or too small. In this way, through the detection of the torque sensor 10, it can be determined that one of the first drive motor 19 and the hob 3 is damaged, or both are damaged at the same time. At this time, an alarm can be triggered to remind the staff to stop the machine for maintenance. The alarm can be a buzzer sounding or a light flashing, etc., to remind the staff.

[0039] Figures 1 to 5 , a vibration sensor 11 is installed near the center of the front end face of the rotating disk 2. There are also multiple groups of stability control components on the front end face of the mounting seat 1. The stability control components are used to adjust the extrusion force on the rotating disk 2. By detecting the data through the vibration sensor 11, the corresponding stability control components are controlled to apply corresponding forces to the rotating disk 2. There are four groups of stability control components, and the four groups of stability control components are evenly distributed in a ring on the outer circumferential surface of the rotating disk 2. The stability control component includes an extrusion plate 13. The extrusion plate 13 is slidably installed on the mounting seat 1. A telescopic column 14 is fixedly connected to one side surface of the extrusion plate 13. A housing 18 is sleeved at the end of the telescopic column 14 away from the extrusion plate 13. The outer wall of the housing 18 is fixedly connected to the rotating disk 2. A permanent magnetic disk 16 is fixedly connected to the end of the telescopic column 14 away from the extrusion plate 13. An electromagnet 17 is arranged on the side of the permanent magnetic disk 16 away from the telescopic column 14. The electromagnet 17 is fixedly connected to the inner wall of the housing 18. A spring 15 is sleeved on the telescopic column 14. The spring 15 is arranged inside the housing 18.

[0040] By adopting the above technical solution, after the angle adjustment of the hob 3 is completed, the electromagnet 17 can be driven to be energized. The electromagnet 17 generates magnetism and exerts a magnetic repulsive force on the permanent magnetic disk 16. The permanent magnetic disk 16 moves away from the electromagnet 17 and compresses the spring 15. At the same time, the extrusion plate 13 is driven by the telescopic column 14 to extrude the rotating disk 2, so as to further lock the rotating disk 2 and reduce the jitter of the hob 3 during processing, and to a certain extent ensure the processing quality of the workpiece. It should be noted that after the angle adjustment of the hob 3 is completed, when the electromagnet 17 is energized to make the extrusion plate 13 exert a force on the rotating disk 2, only part of the force that the electromagnet 17 can output is exerted. For example, when the electromagnet 17 is at its maximum power, the extrusion plate 13 can exert a force of 100 N on the rotating disk 2, while after the angle adjustment of the hob 3, the extrusion plate 13 only exerts a force of 50 N on the rotating disk 2, that is to say, the electromagnet 17 only outputs part of its power.

[0041] Figures 1 to 5 , determine the weight of the rotating disk 2 and the weight of the components installed on the rotating disk 2 in advance to obtain the total weight M. Obtain the acceleration data of the rotating disk 2 in the X and Y axis directions at each moment through the detection of the vibration sensor 11. According to Newton's second law , combined with the obtained acceleration data in the X and Y axis directions and the total weight M, calculate the vibration force magnitudes of the rotating disk 2 in the X and Y axis directions and the directions of the vibration forces on the X and Y axes. Obtain the corresponding stability control components according to the directions of the vibration forces on the X and Y axes, with the aim of obtaining which electromagnet 17 in the stability control components needs to increase the current.

[0042] Pre-determine the quantitative relationship between the current of the electromagnet 17 in the stability control component and the extrusion force exerted by the telescopic column 14 on the outside world through experiments. Apply different magnitudes of current to the electromagnet 17 and measure the extrusion force values exerted by the telescopic column 14 on the outside world under the corresponding currents to establish the mapping relationship between the current of the electromagnet 17 and the extrusion force .

[0043] According to the calculated vibration force magnitudes on the X and Y axes, directions and the corresponding stability control components, determine the extrusion force that the corresponding stability control component needs to exert on the rotating disk 2 , that is to say, the vibration force magnitudes on the X and Y axes are , and the corresponding stability control component also needs to exert a corresponding magnitude of force on the rotating disk 2, and the direction of the force is opposite to the direction of the vibration force, so as to achieve the mutual cancellation of forces, reduce the vibration of the rotating disk 2, and thus improve the stability of the hob 3 during processing and ensure the processing accuracy of the workpiece.

[0044] After obtaining the data, through the extrusion force and the current and extrusion force of the mapping relationship, to obtain the magnitude of the current that needs to be passed through the electromagnet 17 in the stability control component. For example, previously, when the electromagnet 17 was energized, the force exerted by the extrusion plate 13 on the rotating disk 2 was 50 N. Later, due to the vibration of the rotating disk 2, it was calculated that the force exerted by the rotating disk 2 on the X-axis was 30 N and the force exerted on the Y-axis was 20 N. Then, the electromagnet 17 on the stability control component needs to exert a force of 80 N on the X-axis of the rotating disk 2 and a force of 80 N on the Y-axis of the rotating disk 2.

[0045] Figures 1 to 5 , record the magnitude, direction of the vibration force on the X and Y axes of the rotating disk 2 and the corresponding stability control components at each moment. According to the period of the vibration frequency of the rotating disk 2 and the recorded data, before the next moment of vibration of the rotating disk 2, pass the corresponding magnitude of current through the corresponding electromagnet 17 in advance. Through advance prediction, the electromagnet 17 in the stability control component can exert an extrusion force of appropriate magnitude and direction before the next moment of vibration of the rotating disk 2, accurately offsetting the vibration force that the rotating disk 2 is about to generate, thereby more effectively reducing the vibration amplitude of the rotating disk 2, achieving precise control of the vibration, greatly shortening the response time of the system to the vibration, enabling the rotating disk 2 to return to a stable state faster, and reducing the adverse effects brought by the vibration of the hob 3.

[0046] According to the maximum current allowed to pass through the electromagnet 17 and the current of the electromagnet 17 and extrusion force of the mapping relationship, obtain the maximum extrusion force exerted by the stability control component on the outside. Compare the magnitudes of the vibration forces on the X and Y axes calculated with the maximum extrusion force exerted by the stability control component on the outside. If the vibration forces on the X and Y axes are greater than the maximum extrusion force exerted by the stability control component on the outside, it indicates that the rotating disk 2 vibrates violently during the processing of the hob 3, and the rotating disk 2 cannot be stabilized through the stability control component. At this time, an alarm can be triggered to remind the staff to come to the mechanical equipment and perform shutdown maintenance;

[0047] If the vibration forces on the X and Y axes are less than the maximum extrusion force exerted by the stability control component on the outside, then pass the corresponding magnitude of current through the electromagnet 17, indicating that the equipment is operating normally at this time.

[0048] The above is only a preferred specific embodiment of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A gear hobbing machine tool holder driven by a built-in motor, comprising a mounting seat (1), a rotating disk (2) being arranged at the front end of the mounting seat (1), a hob (3) being arranged at the front end of the rotating disk (2), support plates (4) being rotatably mounted at both ends of the upper end of the hob (3), the support plates (4) being fixedly connected to the rotating disk (2), a first driving motor (19) being mounted on the rotating disk (2), the first driving motor (19) being used to drive the hob (3) to rotate, a feed assembly being mounted at the lower end of the mounting seat (1), the feed assembly being used to control the feed force of the hob (3), and a rotating assembly being mounted on the back of the mounting seat (1), the rotating assembly being used to drive the rotating disk (2) to rotate; Features: A torque sensor (10) is installed between the first drive motor (19) and the transmission component of the roller cutter (3), wherein one set of the support plates (4) is composed of a force-bearing plate (41) and a pressure plate (42), and a pressure sensor (12) is installed between the force-bearing plate (41) and the pressure plate (42); A range of the feed force of the hob (3) and a torque range value for the first drive motor (19) to drive the hob (3) to process a workpiece are preset in advance; if the torque value detected by the torque sensor (10) is higher than the preset torque range value, the feed component reduces the feed force; if the torque value detected by the torque sensor (10) is lower than the preset torque range value, the feed component increases the feed force; A vibration sensor (11) is installed near the center position of the front end surface of the rotating disk (2), and a plurality of stabilization control components are also installed on the front end surface of the mounting seat (1). The stabilization control components are used to adjust the squeezing force on the rotating disk (2). Data is detected by the vibration sensor (11) and the corresponding stabilization control components are controlled to apply corresponding force to the rotating disk (2).

2. The gear hobbing machine tool holder driven by a built-in motor according to claim 1, characterized in that: If the feed assembly is regulated according to a preset feed force range, and the torque value detected by the torque sensor (10) is not within the preset torque range, it is determined that the first drive motor (19) and the roller cutter (3) are damaged.

3. The gear hobbing machine tool holder driven by a built-in motor according to claim 2, characterized in that: The stabilizing control components are four groups, and the four groups of stabilizing control components are evenly distributed in annular shape on the outer circumferential surface of the rotating disk (2). The stabilizing control components include an extrusion plate (13), the extrusion plate (13) is slidably mounted on the mounting seat (1), a telescopic column (14) is fixedly connected to one side surface of the extrusion plate (13), an end of the telescopic column (14) away from the extrusion plate (13) is sleeved with a shell (18), the outer wall of the shell (18) is fixedly connected to the rotating disk (2), an end of the telescopic column (14) away from the extrusion plate (13) is fixedly connected to a permanent magnetic disk (16), a side of the permanent magnetic disk (16) away from the telescopic column (14) is provided with an electromagnet (17), the electromagnet (17) is fixedly connected to the inner wall of the shell (18), and a spring (15) is sleeved on the telescopic column (14), and the spring (15) is arranged in the shell (18).

4. The gear hobbing machine tool holder driven by a built-in motor according to claim 3, characterized in that: The weight of the rotating disk (2) and the weight of the components installed on the rotating disk (2) are determined in advance to obtain the total weight. The acceleration data of the rotating disk (2) in the X and Y axis directions at each moment are obtained through the vibration sensor (11). According to Newton's second law , combined with the acquired acceleration data in the X and Y axis directions and the total weight, the magnitude of the vibration force in the X and Y axis directions of the rotating disk (2) and the direction of the vibration force in the X and Y axis are calculated, and the corresponding stabilization control component is obtained according to the direction of the vibration force in the X and Y axis.

5. The gear hobbing machine tool holder driven by a built-in motor according to claim 4, characterized in that: The quantitative relationship between the current of the electromagnet (17) in the stabilizing component and the extrusion force applied by the telescopic column (14) to the outside world is determined in advance by experiments. By applying currents of different magnitudes to the electromagnet (17) and measuring the extrusion force values ​​applied by the telescopic column (14) to the outside world under the corresponding currents, the current of the electromagnet (17) is established. With extrusion force The mapping relationship.

6. The gear hobbing machine tool holder driven by a built-in motor according to claim 5, characterized in that: According to the calculated magnitude and direction of the vibration force on the X and Y axes and the corresponding stabilization components, determine the extrusion force that the corresponding stabilization components need to apply to the rotating disk (2) , through the extrusion force and current With extrusion force The mapping relationship is used to obtain the current size that needs to be passed into the electromagnet (17) in the stabilization component.

7. The gear hobbing machine tool holder driven by a built-in motor according to claim 6, characterized in that: The magnitude and direction of the vibration force in the X and Y axis directions of the rotating disk (2) at each moment and the corresponding stabilization control component are recorded, and according to the period of the vibration frequency of the rotating disk (2) and the recorded data, a current of a corresponding magnitude is passed through the corresponding electromagnet (17) before the rotating disk (2) vibrates at the next moment.

8. A gear hobbing machine tool holder driven by a built-in motor according to any one of claims 5 to 7, characterized in that: According to the maximum current allowed to flow through the electromagnet (17) and the current of the electromagnet (17) With extrusion force The maximum extrusion force exerted by the stabilizing control component on the outside world is obtained by using a mapping relationship, and the magnitude of the calculated vibration force on the X and Y axes is compared with the maximum extrusion force exerted by the stabilizing control component on the outside world. If the vibration force on the X and Y axes is greater than the maximum extrusion force exerted by the stabilizing control component on the outside world, an alarm is triggered; if the vibration force on the X and Y axes is less than the maximum extrusion force exerted by the stabilizing control component on the outside world, a current of a corresponding magnitude is passed through the electromagnet (17).

9. The gear hobbing machine tool holder driven by a built-in motor according to claim 1, characterized in that: The rotating assembly comprises a servo motor (9), the servo motor (9) being mounted on the back of the mounting seat (1), a gear (8) being mounted on the output end of the servo motor (9), a rotating shaft (7) being meshedly connected at the outer circumference of the gear (8), one end of the rotating shaft (7) movably passing through the mounting seat (1) and being fixedly connected to the rotating disk (2).

10. The gear hobbing machine tool holder driven by a built-in motor according to claim 9, characterized in that: The feed assembly comprises a screw rod (6), the screw rod (6) being arranged at the lower half of the mounting seat (1), the two ends of the screw rod (6) passing through the mounting seat (1) and extending to the outside, the screw rod (6) being threadedly connected to the mounting seat (1), and a second drive motor (5) being installed at one end of the screw rod (6).

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