Gear shaving machine for numerical control machine tool

Abstract

The gear shaving machine for the numerical control machine tool comprises a shell, a base is fixed to the bottom end of the outer wall of the shell, a sealing cabinet door is hinged to the front end of the outer wall of the shell, an installation frame is arranged at the upper end of the inner wall of the shell, and a gear shaving mechanism for shaving gears is arranged in the installation frame. Vertical plates are fixed to the bottom end of the inner wall of the shell and located below the mounting frame, and a mounting mechanism for mounting a gear to be shaved is arranged between the vertical plates. According to the gear hobbing machine, an operator can pull up the right side of the mounting frame, the hobbing cutters can be conveniently disassembled and assembled from the right end of the rotating shaft, the operator can conveniently replace the hobbing cutters according to the shapes of workpiece gears so that the gear hobbing machine can be suitable for different types of gears, and a plurality of hobbing cutters and gears can be mounted at a time through the rotating shaft and the workpiece mounting shaft; and the gear shaving machining efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of numerically controlled machine tools, in particular to a gear shaving machine used for numerically controlled machine tools. Background Art

[0002] The shaving machine uses a gear-shaped shaving cutter as a tool to finish the already machined gear tooth surface. This processing method is called "tooth shaving". The shaving machine uses the principle of helical gear meshing to drive the workpiece to rotate freely to finish the cylindrical gear, shaving off fine chips on the tooth surface to correct the tooth shape and improve the surface finish.

[0003] A gear shaving machine for gear processing parts is disclosed in the Chinese patent announcement number CN217666923U. The patented technology sets a gear shaving mechanism, opens the box door, places the round shaft with the gear installed on the placement seat, starts the second electric push rod, and the second electric push rod contracts to drive the limit seat to descend. The limit seat descends to limit the round shaft, so that the installation of the gear is completed. The installation process is convenient and quick, and the use effect of the device is effectively improved;

[0004] However, it can be seen from the specification and drawings disclosed in the above patent technology that when the above patent technology is implemented, the hobs arranged thereon are fixedly installed on a fixed frame, which makes it inconvenient for personnel to adjust and replace the hobs according to the size and shape of the gear to be processed, and the device can only shave a single gear at a time, which affects the efficiency of gear processing. Therefore, the patent technology still has certain shortcomings.

[0005] In summary, it is necessary to invent a gear shaving machine for CNC machine tools. Utility Model Content

[0006] To this end, the utility model provides a gear shaving machine for a CNC machine tool to solve the problem that the hobs arranged thereon are all fixedly mounted on a fixed frame, which makes it inconvenient for personnel to adjust and replace the hobs according to the size and shape of the gear to be processed.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gear shaving machine for a CNC machine tool, comprising a shell, a base is fixed to the bottom end of the outer wall of the shell, a sealed cabinet door is hinged to the front end of the outer wall of the shell, a mounting frame is provided at the upper end of the inner wall of the shell, a gear shaving mechanism for shaving gears is provided in the mounting frame, a vertical plate is fixed to the bottom end of the inner wall of the shell and below the mounting frame, and a mounting mechanism for mounting the gears to be shaved is provided between the vertical plates.

[0008] Preferably, a lifting cylinder is fixed on the top of the outer wall of the shell and on both sides of the installation frame, and the bottom output shaft of the lifting cylinder passes through the top of the inner wall of the shell and is fixedly connected to both sides of the top of the outer wall of the installation frame.

[0009] Preferably, the shaving mechanism includes a rotating shaft, both ends of which are connected to the bottom of both sides of the inner wall of the mounting frame, a driving motor is fixed on the left side of the outer wall of the mounting frame and at a position corresponding to the rotating shaft, and the output shaft of the driving motor is fixed to the left end of the rotating shaft.

[0010] Preferably, screw holes are provided at the front and rear ends of the outer wall of the rotating shaft, and the plurality of screw holes are evenly arranged in a strip array. A hob mounting seat is slidably provided on the outer wall of the rotating shaft, and the outer wall of the hob mounting seat is fixed to the outer wall of the hob mounting seat by screws at positions corresponding to the screw holes, and the outer wall of the hob mounting seat is spline-connected with a hob for shaving gears.

[0011] Preferably, a side tightening seat is slidably mounted on the outer wall of the rotating shaft and located on the side of the hob mounting seat away from the hob, and the outer wall of the side tightening seat is fixed to the outer wall of the rotating shaft through screws and screw holes.

[0012] Preferably, the mounting mechanism comprises a workpiece mounting shaft, circular holes are provided at the upper ends of both sides of the outer wall of the vertical plate, both ends of the workpiece mounting shaft are connected to the inner walls of the circular holes, and the outer walls of the workpiece mounting shaft are sleeved with workpiece gears to be shaving processed.

[0013] Preferably, tightening plates are provided on the upper and lower sides of the outer wall of the workpiece mounting shaft, a tightening spring is fixed to the outer wall of the tightening plate on one side close to the workpiece mounting shaft, one end of the tightening spring away from the tightening plate is fixedly connected to a pad installed on the inner wall of the workpiece mounting shaft, and positioning bolts are fixed to the outer wall of the tightening plate close to the workpiece mounting shaft and on both sides of the tightening spring.

[0014] Preferably, an avoidance through hole is opened at the top of the outer wall of the workpiece mounting shaft and at the position corresponding to the positioning bolt, the outer wall of the positioning bolt is slidably connected to the inner wall of the avoidance through hole, and the outer wall of the positioning bolt and the outer side of the locking nut are threadedly connected with a locking nut.

[0015] The beneficial effects of the utility model are:

[0016] In the utility model, the operator can pull up the right side of the installation frame to facilitate the disassembly and assembly of the hob from the right end of the rotating shaft, and the operator can replace the hob according to the shape of the workpiece gear so as to be suitable for different types of gears. In addition, multiple hobs and gears can be installed at one time through the provided rotating shaft and workpiece installation shaft, which can improve the efficiency of gear shaving processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the external structure of the utility model in the front view direction;

[0018] Figure 2It is a schematic diagram of the cross-sectional structure of the utility model in the front view direction;

[0019] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the installation frame in the utility model;

[0021] Figure 5 It is a partial structural schematic diagram of the neutral plate of the utility model in the side view direction;

[0022] Figure 6 It is a three-dimensional structural diagram of the installation of the rotating shaft, the hob mounting seat and the side tightening seat of the utility model;

[0023] Figure 7 It is a schematic diagram of the cross-sectional structure of the workpiece installation axis in the utility model when viewed from the side.

[0024] In the figure: 100, housing; 200, lifting cylinder; 210, mounting frame; 220, driving motor; 221, rotating shaft; 230, hob mounting seat; 240, side tightening seat; 300, vertical plate; 310, workpiece mounting shaft; 320, tightening plate; 321, positioning bolt; 322, locking nut; 330, tightening spring. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0026] See attached Figure 1-7 The utility model provides a gear shaving machine for a numerically controlled machine tool, comprising a shell 100, a base is fixed to the bottom end of the outer wall of the shell 100, a sealed cabinet door is hinged to the front end of the outer wall of the shell 100, and the sealed cabinet door is provided to close the access opening at the front end of the shell 100 during processing, and a mounting frame 210 is provided at the upper end of the inner wall of the shell 100, and a lifting cylinder 200 is fixed to the top end of the outer wall of the shell 100 and on both sides of the mounting frame 210, and the bottom output shaft of the lifting cylinder 200 passes through the top end of the inner wall of the shell 100 and is fixedly connected to both sides of the top end of the outer wall of the mounting frame 210, and the provided lifting cylinder 200 can control the mounting frame 210 to move up and down, so that the hob can perfectly mesh with the size of the workpiece;

[0027] A shaving mechanism for shaving gears is provided in the mounting frame 210, and the shaving mechanism includes a rotating shaft 221. The rotating shaft 221 is provided for mounting the hob on the mounting frame 210. Both ends of the rotating shaft 221 are connected to the bottom of both sides of the inner wall of the mounting frame 210. The right end of the mounting frame 210 is a retractable structure. When replacing the hob, personnel can disassemble the right side of the mounting frame 210, so that the right end of the mounting frame 210 is pulled out to the right, and the right end of the rotating shaft 221 on the right side of the inner wall of the mounting frame 210 is separated, and the personnel can remove the hob from the right end of the rotating shaft 221 for replacement. The personnel can lock and fix the installation frame 210 when it is closed by means of locking bolts, and a bearing support for supporting the rotating shaft 221 can be provided at the right end of the inner wall of the installation frame 210 to prevent the right side of the inner wall of the installation frame 210 from hindering the rotation of the rotating shaft 221. A driving motor 220 is fixed at the left side of the outer wall of the installation frame 210 and at a position corresponding to the rotating shaft 221. The output shaft of the driving motor 220 is fixed to the left end of the rotating shaft 221, and the fixed driving motor 220 is used to drive the rotating shaft 221 to rotate. The outer wall of the rotating shaft 221 is provided with screw holes at the front and rear ends, and the plurality of screw holes are connected through a strip array. The outer wall of the rotating shaft 221 is slidably provided with a hob mounting seat 230, and the outer wall of the hob mounting seat 230 is fixed to the outer wall of the hob mounting seat 230 by screws at the positions corresponding to the screw holes, and the outer wall of the hob mounting seat 230 is provided with a countersunk hole at the position corresponding to the screw, and the countersunk hole is provided to install the screw so that the cover end of the screw is flush with the outer wall of the hob mounting seat 230, so as to avoid accidents when the hob is installed on the hob mounting seat 230. The hob for shaving the gear is splined on the outer wall of the hob mounting seat 230, and a side tightening seat 240 is slidably mounted on the outer wall of the rotating shaft 221 and located on the side of the hob mounting seat 230 away from the hob. The outer wall of the side tightening seat 240 is fixed to the outer wall of the rotating shaft 221 through screws and screw holes, and the side tightening seat 240 is provided to fix the hob on the hob mounting seat 230 from the other end, and the side tightening seat 240 can also be fixed through screw holes and bolts, so that the hob can also rotate together when the rotating shaft 221 rotates, so that the workpiece gear can be shaved;

[0028] A vertical plate 300 is fixed at the bottom of the inner wall of the housing 100 and below the mounting frame 210. A mounting mechanism for mounting the gear to be shaved is provided between the vertical plates 300. The mounting mechanism includes a workpiece mounting shaft 310. Circular holes are provided at the upper ends of both sides of the outer wall of the vertical plates 300. The two ends of the workpiece mounting shaft 310 can also be detachably mounted with bearing supports. The circular holes can be used to mount the bearing supports. The upper ends of the vertical plates 300 can be disassembled by pulling up and down, so that it is convenient for personnel to mount the bearing supports on the vertical plates 300. 0 for disassembly and assembly, and the vertical plate 300 can be fixed by bolts when closed, the two ends of the workpiece mounting shaft 310 are connected to the inner wall of the circular hole, the outer wall of the workpiece mounting shaft 310 is sleeved with the workpiece gear to be shaved, and the upper and lower sides of the outer wall of the workpiece mounting shaft 310 are provided with a tightening plate 320, and the outer wall of the tightening plate 320 close to the workpiece mounting shaft 310 is fixed with a tightening spring 330, and the set tightening spring 330 can lift the tightening plate 320 outward through elastic force, so that it can be tightened and fixed with the inner wall of the workpiece gear, and the tightening spring 330 can lift the tightening plate 320 outward through elastic force, so that it can be tightened and fixed with the inner wall of the workpiece gear. The end of the clamping plate 320 away from the top clamping plate 320 is fixedly connected to the pad installed on the inner wall of the workpiece mounting shaft 310, and the pad installed is used to push the clamping plate 320 outward with the clamping spring 330. The top clamping plate 320 is close to the outer wall of the workpiece mounting shaft 310 and is fixed with positioning bolts 321 on both sides of the clamping spring 330. The top of the outer wall of the workpiece mounting shaft 310 and the corresponding position of the positioning bolt 321 are provided with avoidance through holes. The avoidance through holes are provided to prevent the workpiece mounting shaft 310 from hindering the extension and contraction of the clamping plate 320. The outer wall of the positioning bolt 321 is connected to the avoidance through hole The inner wall of the through hole is slidably connected, and the outer wall of the positioning bolt 321 and the outer side of the locking nut 322 are threadedly connected with a locking nut 322. When the clamping plate 320 is tightened against the outer wall of the gear, the personnel can rotate the locking nut 322 to tighten the bottom end of the outer wall of the locking nut 322 against the outer wall of the workpiece mounting shaft 310. The setting of the locking nut 322 will prevent the positioning bolt 321 from sliding into the avoidance through hole, so that the position of the clamping plate 320 can be kept fixed, so that the workpiece gear can drive the workpiece mounting shaft 310 to rotate when it rotates.

[0029] The use process of the utility model is as follows: first, the workpiece mounting shaft 310 can be taken out, and then the bearing support connected to one end of the workpiece mounting shaft 310 can be removed, and then the top plate 320 can be pressed, and then the personnel can place the workpiece gear to be shaved on the outer wall of the workpiece mounting shaft 310, so that the top plate 320 can tighten the outer wall and inner wall of the workpiece gear, and then the personnel can unscrew the bolts on the vertical plate 300, and pull the upper end of the vertical plate 300 upwards, and then place the bearing support installed on the circular opening of the vertical plate 300. The staff can then press the vertical plate 300 downward to fix the end of the workpiece mounting shaft 310. After completion, the staff can pull the right end of the mounting frame 210 to the right, so that the bearing support installed at the right end of the mounting frame 210 is separated from the right end of the rotating shaft 221. The staff can fix the hob mounting seat 230 on the outer wall of the rotating shaft 221 with screws. Then the staff can take out the hob to be shaved, and then install the hob on the hob mounting seat 230 through the spline groove opened on the hob, and then take out the side tightening seat 240, and The side tightening seat 240 is installed on the rotating shaft 221 from the right end to tighten the outer wall of the other side of the hob, and is installed and fixed by screws. Then, the hobs corresponding to the number of workpiece gears are fixed to the outer wall of the rotating shaft 221 in the above manner. After completion, the personnel can control the installation frame 210 to move downward by the lifting cylinder 200, and then the personnel can adjust the position of the workpiece gear so that the workpiece gear is meshed with the hob. After completion, the personnel can screw the locking nut 322 so that the locking nut 322 can move the positioning bolt 321 downward and tighten it against the outer wall of the workpiece mounting shaft 310, so that the workpiece gear can be fixed. After the fixation is completed, the personnel can control the lifting cylinder 200 to move downward so that the hob can mesh with the outer wall of the workpiece gear. After completion, adjust the coolant to the meshing point of the hob and the workpiece gear, and then the personnel can start the drive motor 220 so that the drive motor 220 can drive the rotating shaft 221 and the hob to rotate, so that the hob can shave the workpiece gear. After the processing is completed, the personnel can remove the workpiece gear for replacement.

[0030] The above is only a preferred embodiment of the utility model. Any person skilled in the art may modify the utility model by using the above technical solution or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement based on the technical solution of the utility model shall fall within the scope of protection claimed by the utility model.

Claims

1. A gear shaving machine for a numerically controlled machine tool, comprising a housing (100), a base being fixed to the bottom end of the outer wall of the housing (100), and a sealed cabinet door being hinged to the front end of the outer wall of the housing (100), characterized in that: An installation frame (210) is provided at the upper end of the inner wall of the housing (100), a shaving mechanism for shaving gears is provided inside the installation frame (210), a vertical plate (300) is fixed at the bottom end of the inner wall of the housing (100) and below the installation frame (210), and an installation mechanism for installing gears to be shaved is provided between the vertical plates (300).

2. A gear shaving machine for a CNC machine tool according to claim 1, characterized in that: A lifting cylinder (200) is fixed at the top of the outer wall of the shell (100) and on both sides of the installation frame (210), and the bottom output shaft of the lifting cylinder (200) passes through the top of the inner wall of the shell (100) and is fixedly connected to both sides of the top of the outer wall of the installation frame (210).

3. A gear shaving machine for a CNC machine tool according to claim 1, characterized in that: The gear shaving mechanism comprises a rotating shaft (221), two ends of the rotating shaft (221) are connected to the bottom of both sides of the inner wall of the installation frame (210), a driving motor (220) is fixed on the left side of the outer wall of the installation frame (210) at a position corresponding to the rotating shaft (221), and an output shaft of the driving motor (220) is fixed to the left end of the rotating shaft (221).

4. A gear shaving machine for a CNC machine tool according to claim 3, characterized in that: The outer wall of the rotating shaft (221) is provided with screw holes at the front and rear ends, and the plurality of screw holes are evenly arranged in a strip array. A hob mounting seat (230) is slidably provided on the outer wall of the rotating shaft (221). The outer wall of the hob mounting seat (230) is fixed to the outer wall of the hob mounting seat (230) by screws at positions corresponding to the screw holes. The outer wall of the hob mounting seat (230) is spline-connected with a hob for shaving gears.

5. A gear shaving machine for a CNC machine tool according to claim 4, characterized in that: A side tightening seat (240) is slidably mounted on the outer wall of the rotating shaft (221) and located on the side of the hob mounting seat (230) away from the hob, and the outer wall of the side tightening seat (240) is fixed to the outer wall of the rotating shaft (221) via screws and screw holes.

6. A gear shaving machine for a CNC machine tool according to claim 1, characterized in that: The mounting mechanism comprises a workpiece mounting shaft (310), the upper ends of both sides of the outer wall of the vertical plate (300) are provided with circular holes, the two ends of the workpiece mounting shaft (310) are connected to the inner walls of the circular holes, and the outer wall of the workpiece mounting shaft (310) is sleeved with a workpiece gear to be shaved.

7. A gear shaving machine for a numerically controlled machine tool according to claim 6, characterized in that: A tightening plate (320) is provided on the upper and lower sides of the outer wall of the workpiece mounting shaft (310); a tightening spring (330) is fixed to the outer wall of the tightening plate (320) on one side close to the workpiece mounting shaft (310); one end of the tightening spring (330) away from the tightening plate (320) is fixedly connected to a pad installed on the inner wall of the workpiece mounting shaft (310); and positioning bolts (321) are fixed to the outer wall of the tightening plate (320) close to the workpiece mounting shaft (310) and on both sides of the tightening spring (330).

8. A gear shaving machine for a numerically controlled machine tool according to claim 7, characterized in that: An avoidance through hole is provided at the top of the outer wall of the workpiece mounting shaft (310) and at a position corresponding to the positioning bolt (321); the outer wall of the positioning bolt (321) is slidably connected to the inner wall of the avoidance through hole; and the outer wall of the positioning bolt (321) and the outer side of the locking nut (322) are threadedly connected with a locking nut (322).

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