A CNC forming gear grinding machine

Abstract

The present invention relates to the technical field of gear grinding machines, and discloses a CNC forming gear grinding machine, including a machine base, a fixed frame arranged on the machine base, a control box arranged on the front side of the machine base, and a three-axis control unit arranged on the fixed frame, and also includes a bearing assembly and a gear grinding assembly arranged on the three-axis control unit, a protective frame arranged on the gear grinding assembly, and a protective mechanism arranged on the protective frame. This CNC forming gear grinding machine can quickly and effectively absorb and disperse vibration energy when the grinding wheel first shows signs of shaking through an anti-shake assembly, thereby achieving a preliminary shock absorption effect, thereby reducing fatigue vibration of the grinding wheel when working for a long time, and further absorbs and consumes vibration energy through a damping assembly, thereby achieving deep suppression of grinding wheel shaking, and significantly improves the stability during the grinding process through the dual shock absorption mechanism of the anti-shake assembly and the damping assembly, thereby ensuring the accuracy of gear processing and reducing processing errors caused by shaking.

Description

Technical Field

[0001] The invention belongs to the technical field of gear grinding machines, and in particular relates to a numerically controlled forming gear grinding machine. Background Art

[0002] CNC forming gear grinding machine, also known as CNC forming gear grinding machine, that is, computer digital control forming gear grinding machine, is currently a CNC machine tool with a large usage and a wide coverage of processing high-precision gears. CNC forming gear grinding machine is a mechatronics product integrating multiple technologies such as mechanics, electrical, hydraulic, microelectronics and information. It is a working mother machine with the advantages of high precision, high efficiency, high automation and high flexibility in mechanical manufacturing equipment. It has a wide range of processing technology performance. As an important equipment for high-precision gear processing, the performance of CNC forming gear grinding machine directly determines the processing accuracy and surface quality of the gear.

[0003] In the processing of traditional CNC forming gear grinding machines, the grinding wheel, as the core grinding element, needs to rotate at high speed and feed accurately for a long time to achieve fine grinding of the gear tooth shape. However, in actual applications, the grinding wheel that works for a long time is often affected by various factors, resulting in jitter, which has a significant impact on the processing accuracy of the gear. Specifically, the grinding wheel is not only subjected to the tangential force and normal force from the workpiece material during the grinding process, but also vibrates due to its own wear, imbalance, installation accuracy and other factors. This vibration not only reduces the grinding accuracy, but also aggravates the fatigue and wear of the grinding wheel and machine tool components, and shortens the service life of the grinding wheel. What is more serious is that the vibration of the grinding wheel may cause the gear tooth shape accuracy to decrease, the surface quality to deteriorate, and even cause serious consequences such as grinding wheel breakage and mechanical structure damage, which directly threatens production safety and product quality. Therefore, there are deficiencies and it cannot meet the production and use needs of manufacturers. Therefore, it is necessary to further improve it.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a CNC forming gear grinding machine is provided, in order to achieve a more practical purpose. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a CNC profile gear grinding machine, which is achieved by the following specific technical means:

[0006] A CNC forming gear grinding machine comprises a machine base, a fixing frame arranged on the machine base, a control box arranged on the front side of the machine base, and a three-axis control unit arranged on the fixing frame, and also comprises a bearing assembly and a gear grinding assembly arranged on the three-axis control unit, a protection frame arranged on the gear grinding assembly, and a protection mechanism arranged on the protection frame;

[0007] The three-axis control unit is provided with a fixed base plate, the gear grinding assembly includes a mounting frame fixedly mounted on the fixed base plate, a driving motor is fixedly mounted on the right side of the mounting frame, a driving shaft is rotatably mounted on the mounting frame, the driving motor is connected to the driving shaft through a transmission gear plate group, a grinding wheel for grinding the gear is provided on the driving shaft, and a base fixedly mounted on the grinding wheel and the driving shaft;

[0008] The protection mechanism comprises a fixed base fixedly mounted on the protection frame, and the fixed base is provided with an anti-shake component for protecting the grinding wheel and a damping component for vibration reduction of the grinding wheel;

[0009] The anti-shake component includes a guide bar fixedly mounted on a fixed base, two shock-absorbing sliders are slidably mounted on the guide bar, an elastic plate for protecting and shock-absorbing the grinding wheel is arranged between the shock-absorbing sliders, an anti-shake part is arranged on the elastic plate, and a movable ball is arranged on the anti-shake part, wherein a correction component for protecting and correcting the grinding wheel is arranged on the shock-absorbing slider.

[0010] As a further description of the above technical solution: when the grinding wheel first shows signs of shaking, the anti-shake component can quickly and effectively absorb and disperse the vibration energy, achieve a preliminary shock-absorbing effect, thereby reducing the fatigue vibration of the grinding wheel when working for a long time, and use the damping component to further absorb and consume the vibration energy, thereby achieving deep suppression of grinding wheel shaking, and the dual shock-absorbing mechanism of the anti-shake component and the damping component significantly improves the stability of the grinding process, thereby ensuring the accuracy of gear processing and reducing processing errors caused by shaking.

[0011] Furthermore, the three-axis control unit includes a longitudinal mechanism and a transverse mechanism fixedly mounted on a fixed frame, and the transverse mechanism is located above the longitudinal mechanism, a vertical mechanism is arranged on the transverse mechanism, and the fixed base plate is fixedly mounted on the vertical mechanism.

[0012] As a further description of the above technical solution: this setting allows the grinding wheel to be accurately positioned and quickly moved in three-dimensional space, greatly improving the degree of freedom and flexibility of processing.

[0013] Furthermore, the bearing assembly includes a bearing base fixedly mounted on the longitudinal mechanism, an angle adjuster for angle adjustment is fixedly mounted on the bearing base, and a positioning fixture for clamping and positioning the processing gear is provided on the angle adjuster.

[0014] As a further description of the above technical solution: this setting can realize the angle adjustment of the processed gear, and at the same time can realize the all-round angle adjustment of the processed gear, so that the grinding path can be accurately controlled to meet the processing requirements of gears of different shapes.

[0015] Furthermore, the damping assembly includes a damping shell fixedly mounted on a fixed base, a movable rod slidably mounted on the damping shell, one end of the movable rod extends to the outside of the damping shell and is fixedly connected to the damping slider, and the other end of the movable rod extends to the inside of the damping shell and is fixedly connected to the damping block;

[0016] Wherein, an elastic corrugated rubber ring is sleeved on the outer periphery of the movable rod, and the elastic corrugated rubber ring is located between the damping shell and the shock-absorbing sliding block.

[0017] As a further description of the above technical solution: the elastic corrugated rubber ring is squeezed simultaneously during the movement of the elastic plate, and the damping block is pushed to move by the movable rod, which is beneficial to the damping force of the damping component.

[0018] Furthermore, two chambers are provided in the inner wall of the damping shell, and the damping assembly also includes an elastic damping member and a damping reinforcement member arranged on the wall of the damping shell chamber, the elastic damping member is located on the periphery of the damping block, a damping groove for use with the elastic damping member is provided on the periphery of the damping block, the damping reinforcement member is located on the periphery of the movable rod, and a rubber strip is provided on the side of the damping reinforcement member facing the movable rod.

[0019] As a further description of the above technical solution: This setting can further absorb and consume vibration energy, achieve deep suppression of grinding wheel jitter, and significantly improve the stability of the grinding process through the dual shock absorption mechanism of the anti-shake component and the damping component, thereby ensuring the accuracy of gear processing and reducing processing errors caused by jitter.

[0020] Further, an airbag assembly is arranged inside the damping shell, the airbag assembly includes a first airbag and a second airbag, and the first airbag and the second airbag are respectively arranged in different chambers of the inner wall of the damping shell, one side of the first airbag is in close contact with the elastic damping member, one side of the second airbag is in close contact with the damping reinforcement member, a ventilation pipe is fixedly connected between the first airbag and the second airbag, and a ventilation hose is fixedly connected to the side of the second airbag away from the ventilation pipe;

[0021] The elastic damping member is used to squeeze the first airbag, so that the airflow is transmitted to the second airbag through the vent pipe, and the damping reinforcement member is driven to damp and reduce vibration of the movable rod.

[0022] As a further description of the above technical solution: the damping reinforcement member is pushed by the expanded second airbag to damp the movement of the movable rod, thereby further absorbing and consuming vibration energy, thereby achieving deep suppression of the vibration of the grinding wheel.

[0023] Furthermore, the correction component includes a correction shell fixedly mounted on the damping slider, a correction airbag is arranged inside the correction shell, a correction slider is arranged on the upper side of the correction airbag, the correction slider extends from the side away from the correction airbag to the outside of the correction shell and is fixedly connected to the correction part, and a movable ball is arranged on the correction part;

[0024] Among them, one side of the correction airbag is fixedly connected to the ventilation hose, and the airflow is transported to the correction airbag through the ventilation hose, driving the correction slider to push the correction part to protect and correct the shaking grinding wheel.

[0025] As a further description of the above technical solution: the correction part contacts the vibrating grinding wheel and effectively offsets the shaking direction of the grinding wheel, thereby achieving deep suppression of the grinding wheel vibration. This setting not only greatly reduces the vibration intensity of the grinding wheel, but also ensures the stability and precision of the grinding process, effectively extending its service life.

[0026] Furthermore, the protection mechanism also includes a sensing component arranged inside the damping shell, the sensing component includes a first sensing sheet fixedly mounted on the damping block, and a second sensing sheet fixedly mounted on the inner wall of the damping shell, and the first sensing sheet and the second sensing sheet are electrically connected.

[0027] As a further description of the above technical solution: when the degree of jitter exceeds a certain range, the first induction plate is driven to contact the second induction plate, thereby sending an electrical signal to drive the drive motor to cut off power and stop running, further improving its applicability.

[0028] Furthermore, a locking assembly for locking the drive shaft is fixedly mounted on an outer wall of the mounting frame on one side facing the grinding wheel, and the locking assembly is located on the outer periphery of the drive shaft.

[0029] As a further description of the above technical solution: the provision of a locking assembly is conducive to locking the drive shaft, thereby improving its safety performance.

[0030] Furthermore, the locking assembly includes a locking shell fixedly mounted on the outer wall of the mounting frame, a fixed inner ring fixedly mounted inside the locking shell, an electromagnet ring is provided on the inner wall of the locking shell, a movable slider is slidably mounted on the fixed inner ring, a magnet block is fixedly mounted on the side of the movable slider facing the electromagnet ring, and an electromagnet plate for locking the drive shaft is fixedly mounted on the side of the movable slider away from the magnet block.

[0031] As a further description of the above technical solution: magnetism is generated by an electromagnet plate, and the magnetism is used to generate suction on the drive shaft, which is sucked and locked to stop the drive shaft from running, and a message is simultaneously sent to remind relevant personnel to inspect it in time. This setting effectively reduces potential safety hazards caused by shaking, further improving the safety of gear grinding operations.

[0032] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0033] 1. This CNC forming gear grinding machine uses the gear grinding component and the protection mechanism in coordination. When the grinding wheel shows signs of shaking, the anti-shake component can quickly and effectively absorb and disperse the vibration energy to achieve a preliminary shock absorption effect, thereby reducing the fatigue vibration of the grinding wheel when working for a long time. The damping component is used to further absorb and consume the vibration energy, thereby achieving a deep suppression of the grinding wheel shaking. The dual shock absorption mechanism of the anti-shake component and the damping component significantly improves the stability of the grinding process, thereby ensuring the accuracy of gear processing and reducing the processing error caused by shaking.

[0034] 2. This CNC forming gear grinding machine drives the correction airbag to expand and become larger through the cooperation between the anti-shake component, damping component, airbag component and correction component. The expanded correction airbag is used to push the correction slider and the correction part to contact the vibrating grinding wheel, and effectively offset the shaking direction of the grinding wheel, thereby achieving deep suppression of the grinding wheel vibration and effective correction. This setting not only greatly reduces the vibration intensity of the grinding wheel, but also ensures the stability and precision during the grinding process, effectively extending its service life.

[0035] 3. When the degree of jitter exceeds a certain range, the CNC forming gear grinding machine drives the induction component to send an electrical signal to drive the drive motor to cut off the power and stop running, and energizes the electromagnet ring to generate a magnetic field force that repels the magnet block, thereby pushing the movable slider and the electromagnet plate to contact the drive shaft, and at the same time makes the electromagnet plate generate magnetism, and uses this magnetism to generate suction on the drive shaft, sucking it and locking it, so that the drive shaft stops running, and simultaneously sends a message to remind relevant personnel to repair it in time. This setting effectively reduces the potential safety hazards caused by jitter, and further improves the safety of gear grinding operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0037] Figure 1It shows a schematic diagram of an overall three-dimensional structure provided according to an embodiment of the present invention;

[0038] Figure 2 A schematic diagram of the installation structure of the fixing frame and the longitudinal mechanism provided in an embodiment of the present invention is shown;

[0039] Figure 3 It shows a schematic diagram of the installation structure of the longitudinal mechanism and the bearing assembly provided in an embodiment of the present invention;

[0040] Figure 4 A schematic diagram of the installation structure of a fixed base plate and a gear grinding assembly provided in an embodiment of the present invention is shown;

[0041] Figure 5 A schematic diagram of the overall structure of a gear grinding assembly according to an embodiment of the present invention is shown;

[0042] Figure 6 A schematic diagram of the installation structure of the locking housing and the driving shaft provided in an embodiment of the present invention is shown;

[0043] Figure 7 The embodiment provided according to the present invention shows Figure 6 The enlarged schematic diagram of part A in the middle;

[0044] Figure 8 A schematic diagram of the installation structure of a protection frame and a protection assembly provided in an embodiment of the present invention is shown;

[0045] Fig. 9 A schematic diagram of the overall structure of a protection component provided according to an embodiment of the present invention is shown;

[0046] Fig.10 A schematic diagram of a partial structure of a protection component provided according to an embodiment of the present invention is shown;

[0047] Fig.11 A partial structural schematic diagram of a damping assembly provided in an embodiment of the present invention is shown;

[0048] Fig.12 A schematic diagram of a guide strip and a shock-absorbing slider provided according to an embodiment of the present invention is shown;

[0049] Fig.13 The embodiment provided according to the present invention shows Fig.12 Enlarged schematic diagram of part B in the middle.

[0050] Legend:

[0051] 10. Machine base; 11. Fixing frame; 12. Control cabinet;

[0052] 20. Three-axis control unit; 21. Longitudinal mechanism; 22. Transverse mechanism; 23. Vertical mechanism;

[0053] 30. Carrying assembly; 31. Carrying base; 32. Angle adjuster; 33. Positioning fixture;

[0054] 40. Fixed base plate;

[0055] 50. Gear grinding assembly; 51. Mounting frame; 52. Driving motor; 53. Transmission gear plate; 54. Driving shaft; 55. Grinding wheel; 551. Base;

[0056] 60. Protective frame;

[0057] 70. Protective mechanism; 71. Fixed base; 72. Anti-shake assembly; 721. Guide strip; 722. Shock-absorbing slider; 723. Elastic plate; 724. Anti-shake unit; 73. Damping assembly; 731. Damping shell; 732. Movable rod; 733. Damping block; 7331. Damping groove; 734. Elastic damping member; 735. Elastic corrugated rubber ring; 736. Damping reinforcement member; 74. Airbag assembly; 741. First airbag; 742. Second airbag; 743. Ventilation pipe; 744. Ventilation hose; 75. Correction assembly; 751. Correction shell; 752. Correction slider; 753. Correction airbag; 754. Correction unit; 76. Induction assembly; 761. First induction sheet; 762. Second induction sheet;

[0058] 80. Locking assembly; 81. Locking shell; 82. Fixed inner ring; 83. Electromagnet ring; 84. Movable slider; 85. Magnet block; 86. Electromagnet plate. DETAILED DESCRIPTION

[0059] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0060] See also Figures 1 to 13A CNC forming gear grinding machine comprises a machine base 10, a fixing frame 11 arranged on the machine base 10, a control box 12 arranged on the front side of the machine base 10, and a three-axis control unit 20 arranged on the fixing frame 11, and also comprises a bearing assembly 30 and a gear grinding assembly 50 arranged on the three-axis control unit 20, a protection frame 60 arranged on the gear grinding assembly 50, and a protection mechanism 70 arranged on the protection frame 60; a fixed base plate 40 is arranged on the three-axis control unit 20, and the gear grinding assembly 50 comprises a fixed assembly 40 and a gear grinding assembly 50 fixedly assembled on the fixed base plate. The mounting frame 51 on the plate 40, the right side of the mounting frame 51 is fixedly equipped with a driving motor 52, the mounting frame 51 is rotatably equipped with a driving shaft 54, the driving motor 52 is connected to the driving shaft 54 ​​through a transmission gear plate group 53, the driving shaft 54 ​​is provided with a grinding wheel 55 for grinding the gear, and the grinding wheel 55 is fixedly equipped with a base 551 fixedly assembled with the driving shaft 54; the protection mechanism 70 includes a fixed base 71 fixedly assembled on the protection frame 60, and the fixed base 71 is provided with a protective The anti-shake component 72 and the damping component 73 for vibration reduction of the grinding wheel 55; the anti-shake component 72 includes a guide bar 721 fixedly mounted on the fixed base 71, two damping sliders 722 are slidably mounted on the guide bar 721, an elastic plate 723 for protecting and damping the grinding wheel 55 is arranged between the damping sliders 722, an anti-shake part 724 is arranged on the elastic plate 723, and a movable ball is arranged on the anti-shake part 724, wherein the damping slider 722 is provided with a correction component 75 for protecting and correcting the grinding wheel 55 When the grinding wheel 55 first shows signs of shaking, the anti-shake component 72 can quickly and effectively absorb and disperse the vibration energy, thereby achieving a preliminary shock-absorbing effect, thereby reducing the fatigue vibration of the grinding wheel 55 when working for a long time, and further absorbing and consuming the vibration energy by using the damping component 73, thereby achieving deep suppression of the shaking of the grinding wheel 55. The dual shock-absorbing mechanism of the anti-shake component 72 and the damping component 73 significantly improves the stability of the grinding process, thereby ensuring the accuracy of gear processing and reducing processing errors caused by shaking.

[0061] See also Figure 1 The three-axis control unit 20 includes a longitudinal mechanism 21 and a transverse mechanism 22 fixedly mounted on the fixed frame 11, and the transverse mechanism 22 is located above the longitudinal mechanism 21, and a vertical mechanism 23 is arranged on the transverse mechanism 22, and the fixed base plate 40 is fixedly mounted on the vertical mechanism 23; the three-axis control unit 20 is started by program setting control, the longitudinal mechanism 21 is used to realize the longitudinal movement of the processed gear, the transverse mechanism 22 is used to realize the transverse movement of the grinding wheel 55, and the vertical mechanism 23 is used to realize the vertical movement of the grinding wheel 55, so that the grinding wheel 55 can be accurately positioned and quickly moved in three-dimensional space, which greatly improves the degree of freedom and flexibility of processing.

[0062] See also Figures 1 to 3The bearing assembly 30 includes a bearing base 31 fixedly mounted on the longitudinal mechanism 21, and an angle adjuster 32 for angle adjustment is fixedly mounted on the bearing base 31, and a positioning fixture 33 for clamping and positioning the processed gear is arranged on the angle adjuster 32; through the setting control of the program, the angle adjustment of the processed gear is realized by using the angle adjuster 32, and the angle adjustment of the processed gear can be realized in all directions through this setting, so that the grinding path can be accurately controlled to meet the processing requirements of gears of different shapes.

[0063] See also Figures 9 to 11 The damping assembly 73 includes a damping shell 731 fixedly assembled on the fixed base 71, and a movable rod 732 is slidably mounted on the damping shell 731. One end of the movable rod 732 extends to the outside of the damping shell 731 and is fixedly connected to the shock-absorbing slider 722, and the other end of the movable rod 732 extends to the inside of the damping shell 731 and is fixedly connected to the damping block 733; wherein, an elastic corrugated rubber ring 735 is sleeved on the outer periphery of the movable rod 732, and the elastic corrugated rubber ring 735 is located between the damping shell 731 and the shock-absorbing slider 722; during the movement of the elastic plate 723, the elastic corrugated rubber ring 735 is squeezed at the same time, and the movable rod 732 is used to push the damping block 733 to move, which is beneficial to the damping force of the damping assembly 73.

[0064] See also Fig.11 , two chambers are provided in the inner wall of the damping shell 731, and the damping assembly 73 also includes an elastic damping member 734 and a damping reinforcement member 736 arranged on the chamber wall of the damping shell 731, the elastic damping member 734 is located on the outer periphery of the damping block 733, and the outer periphery of the damping block 733 is provided with a damping groove 7331 used in conjunction with the elastic damping member 734, and the damping reinforcement member 736 is located on the outer periphery of the movable rod 732, and a rubber strip is provided on the side of the damping reinforcement member 736 facing the movable rod 732; the damping force applied by the elastic damping member 734 when in contact with the damping groove 7331 is transmitted to the damping slider 722, and the movable rod 732 is damped by the damping reinforcement member 736, so as to further absorb and consume vibration energy, thereby realizing deep suppression of the vibration of the grinding wheel 55, and the dual vibration reduction mechanism of the anti-shake assembly 72 and the damping assembly 73 significantly improves the stability during the grinding process, thereby ensuring the accuracy of gear processing and reducing the processing error caused by vibration.

[0065] See also Fig.11The damping shell 731 is provided with an airbag assembly 74 inside, and the airbag assembly 74 includes a first airbag 741 and a second airbag 742, and the first airbag 741 and the second airbag 742 are respectively arranged in different chambers of the inner wall of the damping shell 731, one side of the first airbag 741 is in contact with the elastic damping member 734, and one side of the second airbag 742 is in contact with the damping reinforcement member 736, a vent pipe 743 is fixedly connected between the first airbag 741 and the second airbag 742, and a vent hose 744 is fixedly connected to the side of the second airbag 742 away from the vent pipe 743; through the elastic damping member 73 4 squeezes the first airbag 741, so that the air flow is transmitted to the second airbag 742 along the vent pipe 743, and drives the damping reinforcement member 736 to damp and reduce the vibration of the movable rod 732; during the movement of the damping block 733, the elastic damping member 734 squeezes the first airbag 741 at the same time, so that the gas in the first airbag 741 is transmitted to the second airbag 742 along the vent pipe 743, and then the inflated second airbag 742 pushes the damping reinforcement member 736 to move and damp the movable rod 732, further absorbing and consuming the vibration energy, thereby achieving deep suppression of the vibration of the grinding wheel 55.

[0066] See also Figures 9 to 13 The correction component 75 includes a correction shell 751 fixedly assembled on the shock-absorbing slider 722, a correction airbag 753 is arranged inside the correction shell 751, and a correction slider 752 is arranged on the upper side of the correction airbag 753. The correction slider 752 extends to the outside of the correction shell 751 away from the side of the correction airbag 753 and is fixedly connected to the correction part 754, and a movable ball is arranged on the correction part 754; wherein, one side of the correction airbag 753 is fixedly connected to the ventilation hose 744, and the airflow is transported to the correction airbag 753 through the ventilation hose 744, driving the correction slider 7 52 pushes the correction part 754 to protect and correct the vibrating grinding wheel 55; the gas is transmitted to the correction airbag 753 through the ventilation hose 744, driving the correction airbag 753 to expand and become larger, and the expanded correction airbag 753 is used to push the correction slider 752 and the correction part 754 to contact the vibrating grinding wheel 55, and form an effective offset with the shaking direction of the grinding wheel 55, thereby realizing deep suppression of the shaking of the grinding wheel 55. Through this setting, not only the shaking force of the grinding wheel 55 is greatly reduced, but also the stability and precision during the grinding process are guaranteed, effectively extending its service life.

[0067] See also Fig.11The protection mechanism 70 also includes a sensing component 76 arranged inside the damping shell 731, and the sensing component 76 includes a first sensing piece 761 fixedly mounted on the damping block 733, and a second sensing piece 762 fixedly mounted on the inner wall of the damping shell 731, and the first sensing piece 761 and the second sensing piece 762 are electrically connected; when the degree of jitter exceeds a certain range, the first sensing piece 761 and the second sensing piece 762 are driven to contact based on the force of the movement of the damping block 733, thereby sending an electrical signal to drive the drive motor 52 to cut off the power and stop running.

[0068] See also Figures 4 to 6 A locking assembly 80 for locking the drive shaft 54 ​​is fixedly installed on the outer wall of the mounting frame 51 on one side facing the grinding wheel 55, and the locking assembly 80 is located on the outer periphery of the drive shaft 54; the setting of the locking assembly 80 is conducive to locking the drive shaft 54, thereby improving its safety performance.

[0069] See also Figures 4 to 7 The locking assembly 80 includes a locking shell 81 fixedly assembled on the outer wall of the mounting frame 51, a fixed inner ring 82 is fixedly installed inside the locking shell 81, an electromagnet ring 83 is arranged on the inner wall of the locking shell 81, a movable slider 84 is slidably installed on the fixed inner ring 82, a magnet block 85 is fixedly installed on the side of the movable slider 84 facing the electromagnet ring 83, and an electromagnet plate 86 for locking the drive shaft 54 ​​is fixedly installed on the side of the movable slider 84 away from the magnet block 85; the electromagnet ring 83 is energized to generate a magnetic field force that repels the magnet block 85, thereby pushing the movable slider 84 and the electromagnet plate 86 to contact the drive shaft 54, and at the same time making the electromagnet plate 86 generate magnetism, and use the magnetism to generate suction on the drive shaft 54, suck it and lock it, so that the drive shaft 54 ​​stops running, and simultaneously sends out information to remind relevant personnel to repair it in time, and this setting effectively reduces the potential safety hazards caused by jitter.

[0070] The specific usage and function of this embodiment are as follows:

[0071] Working principle: When in use, the gear to be processed is placed on the positioning fixture 33, and the positioning fixture 33 is used to position and clamp the gear. Then, the control panel on the control box 12 is operated to start the three-axis control unit 20 through the setting control of the program, and the longitudinal mechanism 21 is used to realize the longitudinal movement of the processed gear, the transverse mechanism 22 is used to realize the transverse movement of the grinding wheel 55, and the vertical mechanism 23 is used to realize the vertical movement of the grinding wheel 55. At the same time, the angle of the processed gear is adjusted by the angle adjuster 32. This setting can realize the full-range angle adjustment of the processed gear, and at the same time, the grinding wheel 55 can be accurately positioned and quickly moved in three-dimensional space, thereby greatly improving the degree of freedom and flexibility of processing, and can accurately control the grinding path to meet the processing requirements of gears of different shapes;

[0072] The grinding wheel 55 that works for a long time is often affected by various factors, resulting in shaking. When the grinding wheel 55 shakes, based on the force of the grinding wheel 55 shaking, the base 551 on the grinding wheel 55 squeezes the anti-shake portion 724, so that the elastic plate 723 is deformed, and the shock-absorbing slider 722 is driven to slide on the guide bar 721 through the elastic plate 723, and at the same time, the spring between the two shock-absorbing sliders 722 is pulled, and the force of shaking is buffered by the elastic force of the elastic plate 723 and the spring between the two shock-absorbing sliders 722. In addition, this arrangement can quickly and effectively absorb and disperse the vibration energy when the grinding wheel 55 first shows signs of shaking, thereby achieving a preliminary shock-absorbing effect, thereby reducing the fatigue vibration of the grinding wheel 55 when working for a long time. In the process of moving the elastic plate 723, the spring The elastic corrugated rubber ring 735 is squeezed, and the movable rod 732 is used to push the damping block 733 to move, and the damping force applied by the elastic damping member 734 when in contact with the damping groove 7331 is transmitted to the shock-absorbing slider 722. In the process of the damping block 733 moving, the elastic damping member 734 squeezes the first airbag 741 at the same time, so that the gas in the first airbag 741 is transmitted to the second airbag 742 along the vent pipe 743, and then the inflated second airbag 742 pushes the damping reinforcement member 736 to move and damp the movable rod 732, further absorbing and consuming vibration energy, achieving deep suppression of the vibration of the grinding wheel 55, and significantly improving the stability during the grinding process through the dual shock-absorbing mechanism of the anti-shake component 72 and the damping component 73, thereby ensuring the accuracy of gear processing and reducing the processing error caused by vibration;

[0073] In addition, while the anti-shake component 72 and the damping component 73 are absorbing the vibration of the vibrating grinding wheel 55, the gas in the first airbag 741 flows through the second airbag 742 and is simultaneously transmitted to the correction airbag 753 through the ventilation hose 744, driving the correction airbag 753 to expand and become larger, and the expanded correction airbag 753 is used to push the correction slider 752 and the correction part 754 to contact the vibrating grinding wheel 55, and effectively offset the shaking direction of the grinding wheel 55, thereby achieving deep suppression of the vibration of the grinding wheel 55. This setting not only greatly reduces the vibration intensity of the grinding wheel 55, but also ensures the stability and precision of the grinding process, effectively extending its service life; and when the degree of vibration exceeds a certain range, based on the force of the damping block 733 when it moves The first induction plate 761 is driven to contact the second induction plate 762, thereby sending out an electrical signal to drive the drive motor 52 to cut off the power and stop running, and start the electromagnet ring 83, so that the electromagnet ring 83 is energized to generate a magnetic field force that repels the magnet block 85, and the movable slider 84 is pushed to move in the direction of the drive shaft 54 ​​by the magnetic force, and the movable slider 84 is used to push the electromagnet plate 86 to contact the drive shaft 54, and at the same time, the electromagnet plate 86 generates magnetism, and the magnetism is used to generate suction on the drive shaft 54, so that it is sucked and locked, and the drive shaft 54 ​​stops running, and simultaneously sends out information to remind relevant personnel to inspect it in time. Through this setting, the potential safety hazards caused by shaking are effectively reduced, and the safety of gear grinding operations is further improved.

[0074] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A CNC profile gear grinding machine, comprising a machine base (10), a fixing frame (11) arranged on the machine base (10), a control box (12) arranged on the front side of the machine base (10), and a three-axis control unit (20) arranged on the fixing frame (11), characterized in that: It also includes a bearing assembly (30) and a gear grinding assembly (50) arranged on the three-axis control unit (20), a protection frame (60) arranged on the gear grinding assembly (50), and a protection mechanism (70) arranged on the protection frame (60); The three-axis control unit (20) is provided with a fixed base plate (40), the gear grinding assembly (50) comprises a mounting frame (51) fixedly mounted on the fixed base plate (40), a driving motor (52) fixedly mounted on the right side of the mounting frame (51), a driving shaft (54) rotatably mounted on the mounting frame (51), the driving motor (52) being connected to the driving shaft (54) via a transmission gear plate group (53), a grinding wheel (55) for grinding gears being provided on the driving shaft (54), and a base (551) fixedly mounted on the grinding wheel (55) and being fixedly mounted on the driving shaft (54); The protection mechanism (70) comprises a fixed base (71) fixedly mounted on the protection frame (60), and the fixed base (71) is provided with an anti-shake component (72) for protecting the grinding wheel (55), and a damping component (73) for reducing vibration of the grinding wheel (55); The anti-shake component (72) comprises a guide bar (721) fixedly mounted on a fixed base (71), two damping sliders (722) being slidably mounted on the guide bar (721), an elastic plate (723) for protecting and damping the grinding wheel (55) being arranged between the damping sliders (722), an anti-shake portion (724) being arranged on the elastic plate (723), and a movable ball bearing being arranged on the anti-shake portion (724), wherein a correction component (75) for protecting and correcting the grinding wheel (55) is arranged on the damping slider (722); The damping assembly (73) comprises a damping shell (731) fixedly mounted on a fixed base (71), a movable rod (732) slidably mounted on the damping shell (731), one end of the movable rod (732) extending to the outside of the damping shell (731) and fixedly connected to the damping slider (722), and the other end of the movable rod (732) extending to the inside of the damping shell (731) and fixedly connected to the damping block (733); Wherein, an elastic corrugated rubber ring (735) is sleeved on the outer periphery of the movable rod (732), and the elastic corrugated rubber ring (735) is located between the damping shell (731) and the shock-absorbing sliding block (722); Two chambers are provided in the inner wall of the damping shell (731); the damping assembly (73) further comprises an elastic damping member (734) and a damping reinforcement member (736) arranged on the chamber wall of the damping shell (731); the elastic damping member (734) is located on the periphery of the damping block (733); a damping groove (7331) for use with the elastic damping member (734) is provided on the periphery of the damping block (733); the damping reinforcement member (736) is located on the periphery of the movable rod (732); and a rubber strip is provided on the side of the damping reinforcement member (736) facing the movable rod (732); An airbag assembly (74) is arranged inside the damping shell (731), and the airbag assembly (74) comprises a first airbag (741) and a second airbag (742), and the first airbag (741) and the second airbag (742) are respectively arranged in different chambers of the inner wall of the damping shell (731), one side of the first airbag (741) is in contact with the elastic damping member (734), and one side of the second airbag (742) is in contact with the damping reinforcement member (736), a ventilation pipe (743) is fixedly connected between the first airbag (741) and the second airbag (742), and a ventilation hose (744) is fixedly connected to a side of the second airbag (742) away from the ventilation pipe (743); The first airbag (741) is squeezed by the elastic damping member (734), so that the airflow is transmitted to the second airbag (742) through the ventilation pipe (743), and the damping reinforcement member (736) is driven to damp and reduce vibration of the movable rod (732); The correction component (75) comprises a correction shell (751) fixedly mounted on the shock-absorbing slider (722); a correction airbag (753) is arranged inside the correction shell (751); a correction slider (752) is arranged on the upper side of the correction airbag (753); the correction slider (752) extends from a side of the correction airbag (753) to the outside of the correction shell (751) and is fixedly connected to the correction part (754); and a movable ball is arranged on the correction part (754); One side of the correction airbag (753) is fixedly connected to the ventilation hose (744), and airflow is delivered to the correction airbag (753) through the ventilation hose (744), driving the correction slider (752) to push the correction part (754) to perform protective correction on the shaking grinding wheel (55).

2. A CNC profile gear grinding machine according to claim 1, characterized in that: The three-axis control unit (20) comprises a longitudinal mechanism (21) and a transverse mechanism (22) fixedly mounted on a fixed frame (11), wherein the transverse mechanism (22) is located above the longitudinal mechanism (21), a vertical mechanism (23) is arranged on the transverse mechanism (22), and the fixed base plate (40) is fixedly mounted on the vertical mechanism (23).

3. The CNC profile gear grinding machine according to claim 1, characterized in that: The bearing assembly (30) comprises a bearing base (31) fixedly mounted on the longitudinal mechanism (21), an angle adjuster (32) for angle adjustment fixedly mounted on the bearing base (31), and a positioning fixture (33) for clamping and positioning the processing gear provided on the angle adjuster (32).

4. The CNC profile gear grinding machine according to claim 1, characterized in that: The protection mechanism (70) further comprises a sensing component (76) arranged inside the damping shell (731), the sensing component (76) comprising a first sensing sheet (761) fixedly mounted on the damping block (733), and a second sensing sheet (762) fixedly mounted on the inner wall of the damping shell (731), the first sensing sheet (761) and the second sensing sheet (762) being electrically connected.

5. The CNC profile gear grinding machine according to claim 1, characterized in that: A locking assembly (80) for locking the drive shaft (54) is fixedly mounted on an outer wall of the mounting frame (51) on one side facing the grinding wheel (55), and the locking assembly (80) is located on the outer periphery of the drive shaft (54).

6. A CNC profile gear grinding machine according to claim 5, characterized in that: The locking assembly (80) comprises a locking shell (81) fixedly mounted on the outer wall of the mounting frame (51), a fixed inner ring (82) fixedly mounted inside the locking shell (81), an electromagnet ring (83) provided on the inner wall of the locking shell (81), a movable slider (84) slidably mounted on the fixed inner ring (82), a magnet block (85) fixedly mounted on the side of the movable slider (84) facing the electromagnet ring (83), and an electromagnet plate (86) for locking the drive shaft (54) fixedly mounted on the side of the movable slider (84) away from the magnet block (85).

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