CN213135323U

CN213135323U - Full-automatic gear grinding machine device

Info

Publication number: CN213135323U
Application number: CN202022250515.0U
Authority: CN
Inventors: 高渤; 于涛; 曹国胜
Original assignee: Nanjing Taijin Precision Machinery Co ltd
Current assignee: Nanjing Taijin Precision Machinery Co ltd
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2021-05-07
Anticipated expiration: 2030-10-12

Abstract

The utility model provides a full-automatic gear grinding machine device, include: the grinding wheel support device comprises a base, a grinding wheel support component, a workpiece support component and a control system. The grinding wheel supporting assembly comprises a first linear guide rail, a cradle box, a cradle, a circular guide disc and a grinding wheel, the cradle box is arranged on the first linear guide rail on the base, the cradle box is provided with the cradle, the circular guide disc is installed on the cradle, and the grinding wheel is installed on the circular guide disc. The workpiece supporting assembly comprises a second linear guide rail, a feeding working table, a rotary supporting plate, a workpiece box and a workpiece gear, the feeding working table is arranged on the second linear guide rail on the base, the rotary supporting plate can horizontally rotate on the feeding working table, the rotary supporting plate is connected with the workpiece box, and the workpiece gear is mounted on the workpiece box. The control system is matched with the full-automatic gear grinding machine, the grinding wheel supporting assembly and the workpiece supporting assembly are electrically connected and controlled, the machining operation of the workpiece gear is completed fully automatically, the debugging period is shortened, the working efficiency and the machining precision are improved, and the personnel and time cost is reduced.

Description

Full-automatic gear grinding machine device

Technical Field

The utility model relates to a gear machine tool technical field especially relates to a full-automatic gear grinding machine device.

Background

In the meshing process of the spiral bevel gear, the spiral bevel gear has the advantages of large overlapping coefficient, large number of meshing teeth, low tooth surface specific pressure, stable transmission, low impact and noise, high bearing capacity, long service life and the like. Spiral bevel gears play a very important role in the mechanical industry due to good dynamic performance thereof, and are widely applied to industries such as automobiles, airplanes, machine tools, petrochemical engineering and the like. The processing equipment industry of the spiral bevel gear is correspondingly and continuously developed, the processing method of the spiral bevel gear adopts a special machine tool to carry out matched processing, but the spiral bevel gear has a complex structure, so that the machine tool matched with the spiral bevel gear faces a lot of difficulties in processing.

The spiral bevel gear grinding machine is mainly used for finishing the deformation of the gear during heat treatment and improving the tooth surface precision and the smoothness so as to meet the requirements of stable transmission, noise reduction and precision improvement. At present, the production and debugging links of common equipment are very troublesome, each produced gear with one specification needs to be trial cut, corrected and trimmed continuously, if misoperation is to be adjusted again, the whole process is more tedious and tedious, so that the gear processing period is prolonged, the cost is increased, and the dependence on the operation experience of a worker is very large. In addition, the workpiece gear of the spiral bevel gear grinding machine is processed by adopting a processing mode of spiral teeth one by one, the processing precision of the workpiece is directly influenced by the tooth dividing precision in the processing process, namely the indexing precision of the workpiece spindle, and transmission and assembly errors and the like in a workpiece box in the device are transmitted to the workpiece spindle, so that the rotation angle error of the workpiece gear is finally caused, and the gear precision is low. In summary, the following defects mainly exist in the current technical development: the machine tool has the advantages of low automation degree, high labor intensity, low efficiency, low processing precision and higher labor and time costs. Therefore, a spiral bevel gear processing machine tool which not only has high processing efficiency but also can ensure processing precision is needed.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model discloses an improve above-mentioned condition, provide a full-automatic gear grinding machine device, can accomplish the processing to arc tooth bevel gear fast accurately.

In order to achieve the above purpose, the utility model mainly adopts the following technical scheme:

a fully automatic gear grinding machine apparatus comprising: a base; the grinding wheel support assembly comprises a first linear guide rail, a cradle box, a cradle, a guide disc and a grinding wheel, the first linear guide rail is arranged on the base, the cradle box is arranged on the first linear guide rail and can move on the first linear guide rail, so that the position adjustment of the grinding wheel is realized in the machining process, the cradle box is provided with the cradle, the guide disc is arranged on the cradle, the guide disc is provided with the grinding wheel through a grinding wheel shaft, and the cradle box is provided with the cradle and a guide disc rotation control structure; a workpiece supporting component which comprises a second linear guide rail, a feeding workbench, a rotary supporting plate and a workpiece box, the second linear guide rail is arranged on the base, the feeding working table is arranged on the second linear guide rail and can move on the second linear guide rail, thereby realizing the position adjustment of the workpiece gear in the processing, the feeding worktable is connected with a rotary supporting plate, the rotary supporting plate can horizontally rotate on the feeding workbench, a workpiece box is connected onto the rotary supporting plate and can be assembled with the workpiece gear, and comprises a torque motor and a circular grating which drive the workpiece gear to rotate, a driving gear and a driven gear which drive the rotary supporting plate to rotate, wherein the driving gear is a double-piece gear and is installed in a coaxial rotation direction in a staggered way, so as to be respectively meshed with two tooth surfaces of the driven gear, thereby connecting and fixing the double-piece gear after eliminating meshing gaps; and the control system is matched with the full-automatic gear grinding machine device and is electrically connected with and controls the grinding wheel supporting assembly and the workpiece supporting assembly, so that the machining operation of the workpiece gear is completed fully automatically.

Furthermore, the rotation of the cradle and the rotation control structure of the guide disc both adopt a cylindrical helical gear self-adaptive clearance elimination structure.

Further, the workpiece gear is controlled to rotate and perform tooth division by using a torque motor and a circular grating in the workpiece box.

Further, the double-plate gear is a double-plate cylindrical straight-tooth gear.

Further, the full-automatic gear grinding machine device also comprises a grinding wheel dressing component with an independent structure, and the grinding wheel dressing component is arranged on the feeding workbench.

Further, the grinding wheel dressing assembly comprises a grinding wheel dressing and grinding component and a mounting seat, wherein the upper part of the mounting seat can horizontally rotate to control the angle state of the grinding wheel dressing and grinding component relative to the dressing surface of the grinding wheel.

Furthermore, the dressing parameters and the dressing amount of the dressed surface of the grinding wheel are controlled and memorized by the control system and then automatically compensated in the machining process.

Further, the grinding wheel dressing and grinding part is a diamond wheel.

In order to achieve the above object, the utility model also provides a control system for above-mentioned full-automatic gear grinding machine device, control system includes: the numerical control device is in information interaction with an operator through a control panel, can memorize dressing parameters and dressing amount in the process of controlling the grinding wheel dressing component, can perform automatic compensation in subsequent processing, and can automatically adjust the root angle degree required by the workpiece gear in the process of controlling the workpiece supporting component; the alternating current servo driver respectively drives an alternating current servo motor connected with the alternating current servo driver to operate according to the position information instruction sent by the numerical control device, and feeds back the position information of the alternating current servo motor to the numerical control device; and the alternating current servo motor drives the cradle, the feeding working table, the rotary supporting plate, the workpiece box and the grinding wheel finishing and grinding part to finish the processing of the spiral bevel gear.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses when carrying out spiral bevel gear processing, need not the programming only input corresponding parameter can, realized spiral bevel gear's full automatic processing, shortened the debugging cycle, promote work efficiency, reduced personnel and time cost. The utility model discloses in drive work piece gear revolve be torque motor and circular grating, drive gyration layer board pivoted driving gear for the biplate gear of coaxial rotation dislocation installation to respectively with the meshing of two flank of tooth of driven gear, with formation crack transmission structure that disappears, improved the machining precision of device. The utility model discloses well control system passes through each motion relation of full-digital servo drive motor control, the utility model discloses a work piece supporting component can be controlled by control system, carries out automatic adjustment to the required root cone angle of work piece gear, and in addition, the emery wheel is maintained the subassembly and is also maintained parameter and maintenance volume by control system control, and control system can remember maintenance parameter and maintenance volume and compensate in follow-up processing is automatic, has not only reduced the human cost, has improved the degree of automation of device, still makes the adjustment more accurate quick and convenient.

Drawings

Fig. 1 is a schematic structural diagram of an overall device according to an embodiment of the present invention.

Fig. 2 is a schematic view of the internal transmission backlash eliminating structure of the rotating supporting plate according to the embodiment of the present invention.

Fig. 3 is a flowchart of the operation of the control system according to the embodiment of the present invention.

In the figure: 1. a base; 2. a first linear guide rail; 3. a cradle; 4. a guide disc; 5. a grinding wheel; 6. a second linear guide; 7. a feeding table; 8. a rotating pallet; 9. a workpiece box; 10. a grinding wheel dressing assembly; 11. a cradle box; 12. a driving gear; 13. a driven gear; 14. the double-piece straight cylindrical gear fixing screw.

Detailed Description

The following description of the embodiments of the present invention will be described in more detail with reference to the drawings. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

The utility model provides a full-automatic gear grinding machine device, as shown in figure 1, including base 1, emery wheel supporting component, work piece supporting component, emery wheel finishing subassembly 10 and control system. The whole device is formed into a space structure with an upper layer and a lower layer, wherein the lower layer part of the space structure is a zone A, the left area of the upper layer part of the space structure is a zone B, the right area of the upper layer part is a zone C, and the middle rear area of the upper layer part is a zone D.

As shown in fig. 1, the base 1 is a rectangular parallelepiped and occupies a region a, the grinding wheel support assembly is located in a region B on the left side of the upper space, the workpiece support assembly is located in a region C on the right side of the upper space, and the grinding wheel dressing assembly 10 is located in a region D. The grinding wheel 5 for grinding is arranged on the grinding wheel supporting component, the grinding wheel 5 can be dressed through the grinding wheel dressing component 10, the workpiece gear can be arranged on the workpiece supporting component, and the dressed grinding wheel 5 and the workpiece gear are matched with the grinding wheel supporting component and the workpiece supporting component respectively to finish grinding of the workpiece. The control system is matched with the full-automatic gear grinding machine device to control the grinding wheel supporting assembly, the workpiece supporting assembly and the grinding wheel dressing assembly 10, and the full-automatic grinding processing of the workpiece is completed.

The grinding wheel supporting component comprises a first linear guide rail 2, a cradle box 11, a cradle 3, a round guide disc 4 and a grinding wheel 5, wherein the first linear guide rail 2 is located below the grinding wheel supporting component and arranged on a base 1, the first linear guide rail 2 extends along the front and back direction of the base 1, the first linear guide rail 2 can comprise two parallel guide rails, the cradle box 11 is arranged on the first linear guide rail 2 and can move on the first linear guide rail 2, and therefore the space position adjustment of the front and back direction of the grinding wheel 5 is achieved in machining. The cradle box 11 is provided with the cradle 3, the cradle 3 is provided with an eccentric hole, the eccentric hole is provided with the guide disc 4, the guide disc 4 is also provided with the eccentric hole, the eccentric hole is provided with the grinding wheel spindle, the grinding wheel spindle is provided with the grinding wheel 5, and the guide disc 4 can rotate, so that the distance adjustment between the center of the grinding wheel spindle and the center of the cradle can be realized, and the guide radius in the processing parameters can be adjusted. The rotation of the cradle 3 and the rotation of the circular guide disc 4 are controlled by a cylindrical helical tooth self-adaptive anti-backlash structure arranged in the cradle box 11, self-adaptive zero-backlash transmission can be realized by the structural mode, and the processing precision is improved. The self-adaptive clearance eliminating structure of the cylindrical helical teeth comprises the following components: one of the gears in the pair of meshed cylindrical helical gears is radially split into two parts, an elastic element is additionally arranged on the split surface of the gear to enable the gear to be axially repelled away (or gathered), one of the split gears is fixed on the rolling spline shaft, and the other split gear is fixed on the rolling spline shaft. When the transmission is engaged, due to the beta angle of the helical gear, under the action of the elastic element, two tooth surfaces of the split gear 1/2 are respectively contacted with two tooth surfaces of the whole gear, and self-adaptive gapless transmission is realized.

The workpiece supporting assembly comprises a second linear guide rail 6, a feeding working table 7, a rotary supporting plate 8 and a workpiece box 9, the second linear guide rail 6 is located below the workpiece supporting assembly and arranged on the base 1, the second linear guide rail extends along the left-right direction of the base 1, the feeding working table 7 is connected above the second linear guide rail 6, the feeding working table 7 can move along the second linear guide rail 6, and the adjustment of the spatial position of the workpiece gear in the left-right direction is realized in the machining process. The top of feeding workstation 7 is through a connecting axle connection gyration layer board 8, gyration layer board 8 can center on the connecting axle and carry out the horizontal rotation on feeding workstation 7, realize the automatic adjustment of root cone angle degree in the processing, its horizontal rotation is through driving gear 12 and driven gear 13 driven, concrete transmission mode is that biplate cylinder straight-teeth gear revolves to dislocation adjustment and numerical control spiral compensation carries out the gap elimination transmission, machining precision has been improved, its driving gear 12 is biplate cylinder straight-teeth gear, coaxial revolves to dislocation adjustment installation, in order to mesh with the both sides flank of tooth of driven gear 13 respectively, thereby eliminate after the meshing gap, it is fixed with biplate cylinder straight-teeth gear hookup through biplate cylinder straight-teeth gear fixing screw 14. 8 top cloth of gyration layer board has the guide rail and connects work piece case 9 through the guide rail, work piece case 9 includes the work piece main shaft, mountable work piece gear on the work piece main shaft, work piece case 9 gyration layer board relatively moves along work piece main shaft direction, and the rotation of work piece gear adopts torque motor and circle grating to divide tooth and control (closed-loop control), and in addition, the work piece gear of installation all is the gear of a type of spiral bevel gear on the work piece supporting component, but has the difference of root cone angle in the various spiral bevel gears, to the utility model provides a work piece supporting component, under control system's control action, cone angle through the required root cone angle parameter of numerical control device input, its automatic adjustment that can realize root cone angle. The control mode reduces the dependence of the device on the experience of operators, reduces the labor cost and improves the automation degree of the device.

The grinding wheel 5 and the workpiece gear move respectively by means of the movement of the cradle box 11 and the workpiece box 9 on the corresponding first linear guide rail 2 and the second linear guide rail 6, so that the grinding wheel and the workpiece gear are close to or separated from each other; the rotation of the workpiece spindle and the rotation of the grinding wheel 5 around the center of the cradle form the tooth profile of the processing gear.

The grinding wheel dressing assembly 10 is connected to the feeding table 7 as a separate structure, and is used for dressing the grinding wheel 5 on the grinding wheel spindle, and comprises a grinding wheel dressing and grinding part and a mounting seat, wherein the grinding wheel dressing and grinding part is preferably a diamond wheel in the embodiment. Compared with a common abrasive material wheel, the diamond wheel has higher abrasion resistance, smaller abrasion and longer service time, and is more suitable for meeting the requirements of tools for high-efficiency and precision machining. The position state of the mounting seat is divided into a trimming position and a withdrawing position, the hydraulic oil cylinder is used for executing position conversion, when the grinding wheel 5 is trimmed, the workpiece box 9 is far away from the cradle 3, the workpiece gear replacement is not influenced, the idle time of the workpiece box 9 in the operation is shortened, and the working efficiency is improved. And the upper part of the mounting seat can rotate horizontally to control the angle state of the diamond wheel relative to the trimmed surface of the grinding wheel when the grinding wheel 5 is trimmed, so as to respectively trim the external conical surface/internal conical surface and the end surface of the grinding wheel. The grinding wheel 5 inevitably generates a certain degree of abrasion deformation in the grinding process, and then the machining precision of the workpiece gear is influenced, and in order to reduce the error in the machining process, the grinding wheel 5 can be timely trimmed through the grinding wheel trimming component 10. After finishing each time of finishing operation, the finishing amount of the finished grinding wheel finishing assembly 10, the position of the mounting seat, the angle and the spatial position information of the diamond wheel are fed back to the control system, the control system memorizes the parameter information in the grinding wheel finishing assembly 10 and automatically compensates in the subsequent processing process of finishing the grinding wheel 5 again, namely, after the grinding wheel finishing assembly finishes one-time grinding processing, the control system memorizes the spatial position parameter fed back after the finishing assembly operation is finished, when the grinding wheel finishing assembly grinds the grinding wheel again, the grinding wheel finishing assembly automatically feeds to the position of the finished grinding wheel at the last time under the action of the control system after the finishing amount of the grinding wheel is input again, and the diamond wheel finishes the grinding wheel again on the basis of the angle and the position state in the last working process, this operation is the automatic compensation process.

The utility model discloses a full-automatic gear grinding machine device and control system thereof still includes one set of control system, control system and full-automatic gear grinding machine device phase-match, electric connection control emery wheel supporting component and work piece supporting component, the processing operation of full-automatic completion work piece gear.

The control system comprises a numerical control device, an alternating current servo driver and an alternating current servo motor.

The numerical control device comprises a control panel for displaying program input, can perform information interaction with an operator, controls the alternating current servo driver by selecting program and corresponding parameter input, and controls the alternating current servo motor to operate by the alternating current servo driver to complete the machining work of the spiral bevel gear. And the alternating current servo driver respectively drives the alternating current servo motors connected with the alternating current servo driver to operate according to the position information commands sent by the numerical control device, and feeds back the position information of the alternating current servo motors to the numerical control device. The alternating current servo motor can drive the cradle 3, the feeding workbench 7, the rotary supporting plate 8, the workpiece box 9 and the grinding wheel dressing assembly 10 to further finish the processing of the spiral bevel gear. Wherein, the numerical control device controls the grinding wheel dressing component 10 to memorize dressing parameters and dressing amount, and automatic compensation is carried out in subsequent processing to ensure the processing precision.

Fig. 2 is a flowchart of a control system according to an embodiment of the present invention, which provides a method for controlling the machining of a spiral bevel gear, including the following steps:

step 1: selecting a program to set gear machining parameters: tooth number, root angle, correction value, and rotation speed;

step 2: selecting a proper grinding wheel rotating speed, and starting to rotate;

and step 3: the feeding workbench is in place, the grinding wheel 5 is in close contact with the workpiece gear, and then the feeding workbench retreats for a certain distance;

and 4, step 4: the grinding wheel dressing component 10 is located, the grinding wheel 5 is dressed, and the grinding wheel dressing component is withdrawn after finishing dressing;

and 5: feeding the working table 7 in place, and performing generating motion on a central shaft of the cradle 3 and a workpiece spindle at a set gear cutting speed until the current gear is machined;

step 6: the feeding workbench 7 is withdrawn, and the workpiece gear is separated from the grinding wheel 5;

and 7: the cradle 3 and the feed table 7 are adjusted to prepare for processing the next tooth

And 8: the workpiece spindle performs tooth separation;

and step 9: after the tooth division is finished, repeating the step 5 to process the next tooth;

step 10: after the machining is finished, stopping the rotation of the grinding wheel spindle, and correspondingly withdrawing the cradle 3 and the feeding workbench 7 to set positions;

to sum up, the utility model discloses a full automatic processing of spiral bevel gear, the adjustment is accurate quick and convenient more, has not only improved the machining precision and has also promoted work efficiency, has reduced personnel and time cost, makes whole device degree of automation higher.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the present invention, and those skilled in the art can make various changes, modifications, substitutions and alterations without departing from the principle and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fully automatic gear grinding machine apparatus, comprising:

a base;

the grinding wheel support assembly comprises a first linear guide rail, a cradle box, a cradle, a guide disc and a grinding wheel, the first linear guide rail is arranged on the base, the cradle box is arranged on the first linear guide rail and can move on the first linear guide rail, so that the position adjustment of the grinding wheel is realized in the machining process, the cradle box is provided with the cradle, the guide disc is arranged on the cradle, the guide disc is provided with the grinding wheel through a grinding wheel shaft, and the cradle box is provided with the cradle and a guide disc rotation control structure;

a workpiece supporting component which comprises a second linear guide rail, a feeding workbench, a rotary supporting plate and a workpiece box, the second linear guide rail is arranged on the base, the feeding working table is arranged on the second linear guide rail and can move on the second linear guide rail, thereby realizing the position adjustment of the workpiece gear in the processing, the feeding worktable is connected with a rotary supporting plate, the rotary supporting plate can horizontally rotate on the feeding workbench, a workpiece box is connected onto the rotary supporting plate and can be assembled with the workpiece gear, and comprises a torque motor and a circular grating which drive the workpiece gear to rotate, a driving gear and a driven gear which drive the rotary supporting plate to rotate, wherein the driving gear is a double-piece gear and is installed in a coaxial rotation direction in a staggered way, so as to be respectively meshed with two tooth surfaces of the driven gear, thereby connecting and fixing the double-piece gear after eliminating meshing gaps;

and the control system is matched with the full-automatic gear grinding machine device and is electrically connected with and controls the grinding wheel supporting assembly and the workpiece supporting assembly, so that the machining operation of the workpiece gear is completed fully automatically.

2. The apparatus of claim 1, wherein the rotation control structure of the cradle and the rotation control structure of the guide disc are both cylindrical helical gear self-adaptive anti-backlash structures.

3. The fully automatic gear grinding machine apparatus of claim 1 wherein the workpiece box uses a torque motor and a circular grating to control the rotation of the workpiece gear and to perform tooth division.

4. The fully automatic gear grinding machine apparatus according to claim 1 wherein said double plate gear is a double plate spur gear.

5. The fully automatic gear grinding machine apparatus according to claim 1 further comprising a grinding wheel truing assembly of a self-contained construction mounted on said feed table.

6. A fully automatic gear grinding machine apparatus according to claim 5 wherein said truing assembly includes a truing grinding member and a mounting block, said mounting block upper portion being horizontally rotatable to control the angular condition of said truing grinding member relative to the trued face of said grinding wheel.

7. A fully automatic gear grinding machine device according to claim 6, characterized in that the dressing parameters and dressing amount of the dressed surface of the grinding wheel are automatically compensated during machining after being controlled and memorized by the control system.

8. The fully automatic gear grinding machine apparatus according to claim 6, wherein said grinding wheel truing and grinding means is a diamond wheel.

9. A control system for controlling the fully automatic gear grinding machine apparatus of any one of claims 1 to 8, characterized in that the control system comprises:

the numerical control device is in information interaction with an operator through a control panel, can memorize dressing parameters and dressing amount in the process of controlling the grinding wheel dressing component, can perform automatic compensation in subsequent processing, and can automatically adjust the root angle degree required by the workpiece gear in the process of controlling the workpiece supporting component;

the alternating current servo driver respectively drives an alternating current servo motor connected with the alternating current servo driver to operate according to the position information instruction sent by the numerical control device, and feeds back the position information of the alternating current servo motor to the numerical control device;

and the alternating current servo motor drives the cradle, the feeding working table, the rotary supporting plate, the workpiece box and the grinding wheel finishing and grinding part to finish the processing of the spiral bevel gear.