CN218016216U

CN218016216U - Gear hobbing machine for flat gear

Info

Publication number: CN218016216U
Application number: CN202221703913.6U
Authority: CN
Inventors: 郑刚
Original assignee: Laohekou Xintaiyou Hardware Electronics Co ltd
Current assignee: Laohekou Xintaiyou Hardware Electronics Co ltd
Priority date: 2022-07-04
Filing date: 2022-07-04
Publication date: 2022-12-13
Anticipated expiration: 2032-07-04

Abstract

The utility model relates to a gear hobbing machine field discloses a flat-tooth gear hobbing machine, have the gear hobbing machine organism including processing platform and processing bench top fixed mounting, fixedly connected with riser on the gear hobbing machine organism, the front side of riser is provided with the hobbing cutter, there is first motor rear side of riser through support fixed mounting, the mounting hole is seted up to one side of riser, rotate through the bearing in the mounting hole and install the pivot, the both ends of pivot all extend to outside the mounting hole, the rear end of pivot with the output shaft fixed connection of first motor, the front end fixed mounting of pivot has the mount pad, the slot has been seted up on the preceding lateral wall of mount pad, the rear end fixed mounting of hobbing cutter has the inserted block. The utility model has the advantages of it is following and effect: can effectively clean the gear that is processed automatically to the convenience carries out quick assembly disassembly to the hobbing cutter, conveniently changes or overhauls the hobbing cutter.

Description

Gear hobbing machine for flat gear

Technical Field

The utility model relates to a gear hobbing machine technical field, in particular to gear hobbing machine with flat teeth.

Background

The hobbing machine is one of the most widely used gear cutting machines, and the hobbing cutter is an important part for cutting gears on the hobbing machine, and can cut straight teeth and helical gears, and can also process worm gears, chain wheels and the like on the hobbing machine, and the hobbing cutter is used for processing the straight teeth, helical teeth, herringbone gears and worm gears according to a generating method. In the prior art, when a gear blank is machined by a gear hobbing machine, gear alignment is inconvenient, and the machining precision of a gear is reduced in the machining process.

Chinese patent with publication No. CN215998981U issued to the above-mentioned problem discloses a high-efficiency hobbing machine convenient for tooth alignment, which comprises a loading base, wherein a support frame is arranged at the rear side of the end of the loading base, an X-axis displacement module is arranged on the upper side of the front side of the support frame, a Y-axis displacement module is installed on the front side of the X-axis displacement module, a Z-axis displacement module is arranged in the middle of the end of the loading base, a hobbing assembly is arranged on the front side of the Y-axis displacement module, a gear positioning assembly is arranged on the end of the Z-axis displacement module, the regulation and control of the hobbing assembly can be simple and convenient through the X-axis displacement module and the Y-axis displacement module, and the position of the hobbing cutter can be regulated and controlled according to the position of the gear, so that the corresponding stability and tooth alignment efficiency of the hobbing cutter and the gear are higher, the machining precision of the gear is high, and the position regulation and control of the gear positioning assembly can be simple and convenient through the Z-axis displacement module, and the gear alignment of the hobbing cutter is simple and simple.

Above-mentioned scheme is through setting up X axle displacement module, Y axle displacement module and Z axle displacement module connection cooperation, can realize that hobbing cutter and gear blank are fast to the tooth, improve the machining precision of gear, discover in the in-service use, after gear blank is processed into the gear, because some pieces can remain in the tooth's inslot, need staff's manual operation to use brush or wipe cloth to clean the gear, this kind of mode of manual clean gear not only consumes operating time, the work load has still been increased, and complex operation, and after the hobbing cutter used for a long time, be not convenient for carry out quick assembly disassembly to the hobbing cutter, and then be not convenient for change or overhaul the hobbing cutter, consequently, need to design one kind and can effectively clean the gear that processes automatically, and conveniently carry out quick assembly disassembly to the hobbing cutter, conveniently change or overhaul the gear hobbing machine of hobbing cutter.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a flat-tooth gear hobbing machine has and can effectively clean the gear that has processed automatically to the convenience carries out quick assembly disassembly's effect to the hobbing cutter.

The above technical object of the present invention can be achieved by the following technical solutions: the utility model provides a flat gear hobbing machine, has the hobbing machine organism including processing platform and processing platform top fixed mounting, fixedly connected with riser on the hobbing machine organism, the front side of riser is provided with the hobbing cutter, the rear side of riser has first motor through support fixed mounting, the mounting hole is seted up to one side of riser, rotate through the bearing in the mounting hole and install the pivot, the both ends of pivot all extend to outside the mounting hole, the rear end of pivot with the output shaft fixed connection of first motor, the front end fixed mounting of pivot has the mount pad, the slot has been seted up on the preceding lateral wall of mount pad, the rear end fixed mounting of hobbing cutter has the inserted block, the inserted block slidable mounting be in the slot, be provided with grafting fixed subassembly on the inserted block, the rectangular hole has been seted up at the top of processing platform, slidable mounting has the rectangle seat in the rectangular hole, the top and the bottom of rectangle seat all extend to outside the rectangular hole, the top of rectangle seat is provided with gear blank carrier assembly, the bottom fixed mounting of processing platform has electric putter, electric putter's output axle head with the right side wall fixed connection of rectangle seat, the top of rectangle seat is provided with the clean top subassembly on the processing platform right side.

Through adopting above-mentioned technical scheme, first motor is used for controlling the hobbing cutter at the uniform velocity rotatory, utilize the fixed subassembly of pegging graft, the convenience is installed fixedly fast and is dismantled fast to the hobbing cutter and take off, and then conveniently change or overhaul the hobbing cutter, utilize gear blank carrier assembly, can lock the gear blank and fix and steerable fixed gear blank at the uniform velocity rotatory, electric putter is used for promoting the rectangle seat horizontal slip, and then can carry out horizontal adjustment to gear blank carrier assembly's position, utilize clean subassembly, can carry out cleaning to the gear that is processed automatically.

The utility model discloses a further set up to: the fixed subassembly of pegging graft includes two card posts and two first springs, the top and the bottom of inserted block all set up flutedly, two card post slidable mounting respectively is corresponding in the recess, two the one end that first spring is close to each other respectively with two one side inner wall fixed connection that the recess is close to each other, two the one end that first spring kept away from each other respectively with two the one end fixed connection that the card post is close to each other, all set up the card hole on the top inner wall of slot and the bottom inner wall, two the one end that the card post was kept away from each other respectively slidable mounting corresponding in the card hole.

Through adopting above-mentioned technical scheme, utilize two card posts respectively with the joint cooperation in corresponding card hole, can fix the inserted block in the slot, and then install fixedly to the hobbing cutter, utilize two first springs, steerable corresponding card post automatic re-setting.

The utility model discloses a further set up to: the limiting grooves are formed in the inner walls of the two sides of the groove, limiting rods are fixedly mounted on the two sides of the clamping columns, and the limiting rods are slidably mounted in the corresponding limiting grooves.

Through adopting above-mentioned technical scheme, utilize the sliding connection cooperation of gag lever post in the spacing inslot, can carry on spacingly to the slip stroke of card post.

The utility model discloses a further set up to: the gear blank bearing assembly comprises a second motor, a bearing plate, a threaded rod and a locking nut, the second motor is fixedly installed at the top of the rectangular seat through a support, the bearing plate is fixedly installed at the output shaft end of the second motor, the threaded rod is fixedly installed at the top of the bearing plate, and the locking nut is fixedly installed on the threaded rod.

Through adopting above-mentioned technical scheme, utilize the loading board, can support the gear blank, utilize the spiro union cooperation of lock nut and threaded rod, can fix the gear blank locking on the threaded rod, utilize the second motor, the operation of the gear blank after steerable locking is rotated.

The utility model discloses a further set up to: the cleaning assembly comprises a fixed plate, a transverse plate, a vertical guide rod, a movable plate, a brush plate, bristles, a second spring, a third motor, a cam, an air pump and a gooseneck spray pipe, wherein the fixed plate is fixedly installed at the top of the processing table, the transverse plate is fixedly installed at the top of the fixed plate, a fixed groove is formed in the left side of the fixed plate, the vertical guide rod is fixedly installed in the fixed groove, the movable plate is slidably installed on the vertical guide rod, the left side of the movable plate extends to the outside of the fixed groove, the brush plate is fixedly installed at the left side of the movable plate, the bristles are fixedly installed at the left side of the brush plate, the bottom end of the second spring is fixedly connected with the inner wall of the bottom of the fixed groove, the top end of the second spring is fixedly connected with the bottom of the movable plate, the second spring is fixedly installed on the vertical guide rod, a mounting groove located above the fixed groove is formed in the left side of the fixed plate, the third motor is fixedly installed in the mounting groove, the output shaft end of the third motor extends to the outside of the mounting groove, the output shaft end of the cam is fixedly installed at the bottom of the transverse plate, and the discharge end of the air pump.

Through adopting above-mentioned technical scheme, transmission characteristic when utilizing the cam rotation to the elasticity effect of cooperation second spring, steerable fly leaf, brush board and brush hair up-and-down motion, and then utilize the brush hair can clean the remaining piece in the tooth's socket of processed gear, utilize the air pump, steerable pressurized air is from gooseneck spray tube blowout, can blow off the remaining piece in the tooth's socket of processed gear, further improves the clean effect to the gear.

The utility model discloses a further set up to: a transverse guide rod is fixedly installed in the rectangular hole, and the rectangular seat is sleeved on the transverse guide rod in a sliding mode.

Through adopting above-mentioned technical scheme, utilize horizontal guide arm, play the slip direction to rectangle seat and lead.

The utility model discloses a further set up to: the fixed mounting has the locating lever on the left side inner wall of slot, the constant head tank has been seted up on the left side of inserted block, the locating lever slidable mounting be in the constant head tank.

Through adopting above-mentioned technical scheme, utilize the sliding connection cooperation of locating lever and constant head tank, can carry out preliminary location to the mounted position of gear hobbing cutter, avoid gear hobbing cutter dress partially.

The utility model has the advantages that:

1. the utility model discloses an utilize gear blank carrier assembly's connection cooperation, can realize locking to gear blank and fix and steerable fixed gear blank is at the uniform velocity of rotation, utilize the steerable hobbing cutter at the uniform velocity of rotation of first motor, utilize electric putter, steerable gear blank horizontal migration, and then through the gear blank at the uniform velocity of rotation remove left to with the hobbing cutter contact at the uniform velocity of rotation, can carry out the processing to gear blank, can process into the gear to gear blank.

2. The utility model discloses an utilize the connection cooperation of clean subassembly to utilize electric putter to the gear blank that has processed to have horizontal migration to suitable position, can clean the remaining piece in the tooth's socket of gear and blow off, and then can realize carrying out effectual cleanness to the gear automatically, solved the clean gear of staff's manual operation not only and expend operating time, still increased the problem of work load.

3. The utility model discloses an utilize the connection cooperation of the fixed subassembly of pegging graft, conveniently install fast to the hobbing cutter and fix and take off with quick dismantlement, the simple operation, and then conveniently change or overhaul the hobbing cutter, solved the problem of the dismouting of being not convenient for of hobbing cutter.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic perspective view of the present embodiment.

Fig. 2 is a front sectional structural view of the present embodiment.

Fig. 3 is a side cross-sectional structural schematic view of a riser.

Fig. 4 is an enlarged structural view of a portion a in fig. 2.

In the figure, 1, a processing table; 2. a gear hobbing machine body; 3. a vertical plate; 4. a hobbing cutter; 5. a first motor; 6. a rotating shaft; 7. a mounting seat; 8. a slot; 9. inserting a block; 10. a groove; 11. clamping the column; 12. a first spring; 13. a clamping hole; 14. a rectangular hole; 15. a rectangular base; 16. a second motor; 17. a carrier plate; 18. a threaded rod; 19. locking the nut; 20. an electric push rod; 21. a fixing plate; 22. a transverse plate; 23. a fixing groove; 24. a vertical guide rod; 25. a movable plate; 26. brushing the board; 27. brushing; 28. a second spring; 29. a third motor; 30. a cam; 31. an air pump; 32. a gooseneck nozzle; 33. positioning a rod; 34. and (6) positioning a groove.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the specific embodiments. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

Referring to fig. 1, 2, 3 and 4, the present invention provides a flat gear hobbing machine, comprising: machining table 1 and 1 top fixed mounting of machining table have hobbing machine organism 2, fixedly connected with riser 3 on the hobbing machine organism 2, the front side of riser 3 is provided with hobbing cutter 4, the rear side of riser 3 has first motor 5 through support fixed mounting, the mounting hole is seted up to one side of riser 3, rotate through the bearing in the mounting hole and install pivot 6, the both ends of pivot 6 all extend outside the mounting hole, the rear end of pivot 6 and the output shaft fixed connection of first motor 5, the front end fixed mounting of pivot 6 has mount pad 7, slot 8 has been seted up on the preceding lateral wall of mount pad 7, the rear end fixed mounting of hobbing cutter 4 has inserted block 9, inserted block 9 slidable mounting is in slot 8, be provided with grafting fixed subassembly on inserted block 9, rectangular hole 14 has been seted up at the top of machining table 1, slidable mounting has rectangle seat 15 in the rectangular hole 14, the top and the bottom of rectangle seat 15 all extend outside rectangular hole 14, the top of rectangle seat 15 is provided with gear blank carrier assembly, the bottom fixed mounting of machining table 1 has electric putter 20, the output shaft end and the right side wall fixed connection of rectangle seat 15 have the top of electric putter 20, the clean subassembly of machining table 1 that is located rectangular hole right side 14.

It is specific, the fixed subassembly of pegging graft includes two card posts 11 and two first springs 12, recess 10 has all been seted up to the top and the bottom of inserted block 9, two card posts 11 are respectively slidable mounting in corresponding recess 10, the one end that two first springs 12 are close to each other is respectively with one side inner wall fixed connection that two recesses 10 are close to each other, the one end that two first springs 12 kept away from each other is respectively with the one end fixed connection that two card posts 11 are close to each other, card hole 13 has all been seted up on the top inner wall of slot 8 and the bottom inner wall, the one end that two card posts 11 were kept away from each other is slidable mounting in corresponding card hole 13 respectively.

Specifically, the inner walls of the two sides of the groove 10 are provided with limiting grooves, the two sides of the clamping column 11 are fixedly provided with limiting rods, and the limiting rods are slidably arranged in the corresponding limiting grooves.

Specifically, the gear blank bearing assembly comprises a second motor 16, a bearing plate 17, a threaded rod 18 and a locking nut 19, wherein the second motor 16 is fixedly installed at the top of the rectangular seat 15 through a support, the bearing plate 17 is fixedly installed at the output shaft end of the second motor 16, the threaded rod 18 is fixedly installed at the top of the bearing plate 17, and the locking nut 19 is fixedly installed on the threaded rod 18.

Specifically, the cleaning assembly comprises a fixed plate 21, a transverse plate 22, a vertical guide rod 24, a movable plate 25, a brush plate 26, bristles 27, a second spring 28, a third motor 29, a cam 30, an air pump 31 and a gooseneck nozzle 32, the fixed plate 21 is fixedly mounted at the top of the processing table 1, the transverse plate 22 is fixedly mounted at the top of the fixed plate 21, a fixed groove 23 is formed in the left side of the fixed plate 21, the vertical guide rod 24 is fixedly mounted in the fixed groove 23, the movable plate 25 is slidably sleeved on the vertical guide rod 24, the left side of the movable plate 25 extends out of the fixed groove 23, the brush plate 26 is fixedly mounted on the left side of the movable plate 25, the bristles 27 are fixedly mounted on the left side of the brush plate 26, the bottom end of the second spring 28 is fixedly connected with the inner wall of the bottom of the fixed groove 23, the top end of the second spring 28 is fixedly connected with the bottom of the movable plate 25, the second spring 28 is sleeved on the vertical guide rod 24, a mounting groove above the fixed plate 23 is formed in the left side of the fixed plate 21, the third motor 29 is fixedly mounted in the mounting groove, an output shaft end of the third motor 29 extends out of the cam 30 is fixedly mounted at an output shaft end of the third motor 29, the mounting groove 31 is fixedly mounted at the bottom of the transverse plate 22, and one end of the air pump 32 is connected with a discharge end of the gooseneck nozzle 31.

Specifically, a transverse guide rod is fixedly installed in the rectangular hole 14, and the rectangular seat 15 is slidably sleeved on the transverse guide rod.

Specifically, a positioning rod 33 is fixedly mounted on the inner wall of the left side of the slot 8, a positioning groove 34 is formed in the left side of the insertion block 9, and the positioning rod 33 is slidably mounted in the positioning groove 34.

Specifically, a control switch is fixedly mounted at the top of the processing table 1, the control switch, the electric push rod 20, the first motor 5, the second motor 16, the third motor 29 and the air pump 31 are electrically connected with an external power line through wires in sequence to form a loop, the control switch can control the starting, the stopping and the resetting of the electric push rod 20, and can also control the starting and the closing of the first motor 5, the second motor 16, the third motor 29 and the air pump 31 respectively.

The working principle is as follows: firstly, a locking nut 19 is screwed off from a threaded rod 18, then a gear blank is sleeved on the threaded rod 18 and placed on a bearing plate 17, then the locking nut 19 is screwed on the threaded rod 18, the gear blank can be locked and fixed on the top of the bearing plate 17, by starting a first motor 5 to work, the first motor 5 drives a rotating shaft 6, a mounting seat 7, an insert block 9 and a hobbing cutter 4 to transport and rotate, by starting a second motor 16 to work, a second motor 16 drives the bearing plate 17 and the locked and fixed gear blank to rotate at a constant speed, then an electric push rod 20 is started to work, the electric push rod 20 pushes a rectangular seat 15, the second motor 16, the bearing plate 17, the threaded rod 18, the locking nut 19 and the gear blank to horizontally slide leftwards, and when the locked and fixed gear blank moves leftwards to be in contact with the hobbing cutter 4 to a proper position, the electric push rod 20 stops working, at this time, the gear blank can be processed by utilizing the uniform rotation of the hobbing cutter 4 and the uniform rotation of the gear blank, after the gear blank is processed into a gear, the first motor 5 stops working, the second motor 16 continues to work, the electric push rod 20 is started to reset, the electric push rod 20 drives the rectangular seat 15, the second motor 16, the bearing plate 17, the threaded rod 18, the locking nut 19 and the gear blank to horizontally slide rightwards, so that when the processed gear moves rightwards to be contacted with the bristles 27 to a proper position, the electric push rod 20 stops working, then the third motor 29 and the air pump 31 are started to work, the third motor 29 drives the cam 30 to rotate, the movable plate 25, the brush plate 26 and the bristles 27 can be controlled to reciprocate up and down by utilizing the transmission characteristic of the cam 30 during rotation and the elastic action of the second spring 28, and further by utilizing the up-and-down reciprocation of the bristles 27 and the uniform rotation of the processed gear, namely, the residual scraps in the tooth grooves of the gear can be cleaned, the gooseneck nozzle 32 is bent to a proper spraying direction, pressurized air can be controlled to spray from the gooseneck nozzle 32 by the operation of the air pump 31, the residual scraps in the tooth grooves of the processed gear can be blown off, the gear can be automatically and effectively cleaned, after the gear is cleaned, the second motor 16, the third motor 29 and the air pump 31 are stopped, the locking nut 19 is screwed off from the threaded rod 18, the processed gear can be taken down, the next gear blank can be continuously processed according to the operation steps, when the hobbing cutter 4 needs to be replaced or overhauled, two thin iron rods are firstly found, the two thin iron rods are respectively inserted into the corresponding clamping holes 13, and when the two clamping columns 11 are respectively pushed out of the corresponding clamping holes 13 by the two thin iron rods, the fixing of the insert block 9 is released, the hobbing cutter 4 can be detached quickly, the repaired or new hobbing cutter 4 needs to be installed, at first, two clamping columns 11 are pressed into corresponding grooves 10 respectively by a handle, at the moment, two first springs 12 are all compressed and deformed to generate elastic force, then the insert block 9 is inserted into the slot 8, the positioning rod 33 is inserted into the positioning groove 34, when the two clamping columns 11 are moved to be located in the same vertical plane with the corresponding clamping holes 13 respectively, under the elastic force action of the two first springs 12, the two clamping columns 11 can be controlled to be inserted into the corresponding clamping holes 13 respectively, the hobbing cutter 4 can be installed and fixed quickly, the hobbing cutter 4 can be conveniently and quickly installed and fixed and detached, the operation is convenient, and the hobbing cutter 4 can be conveniently replaced or repaired.

The above is to the present invention provides a flat gear hobbing machine which is described in detail. The principles and embodiments of the present invention have been explained herein using specific embodiments, which are merely used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The utility model provides a flat gear hobbing machine, which is characterized in that, including processing platform (1) and processing platform (1) top fixed mounting have hobbing machine organism (2), fixedly connected with riser (3) on hobbing machine organism (2), the front side of riser (3) is provided with hobbing cutter (4), the rear side of riser (3) has first motor (5) through support fixed mounting, the mounting hole is seted up to one side of riser (3), rotate through the bearing in the mounting hole and install pivot (6), the both ends of pivot (6) all extend to outside the mounting hole, the rear end of pivot (6) with the output shaft fixed connection of first motor (5), the front end fixed mounting of pivot (6) has mount pad (7), slot (8) have been seted up on the preceding lateral wall of mount pad (7), the rear end fixed mounting of hobbing cutter (4) has inserted block (9), rectangle inserted block (9) slidable mounting is in slot (8), be provided with grafting fixed subassembly on inserted block (9), rectangular hole (14) has seted up rectangular hole (14), rectangular hole (14) and rectangular bearing seat (15) are all provided with the top extension to the top of rectangle gear bearing seat (15), the bottom of the processing table (1) is fixedly provided with an electric push rod (20), the output shaft end of the electric push rod (20) is fixedly connected with the right side wall of the rectangular seat (15), and the top of the processing table (1) is provided with a cleaning assembly located on the right side of the rectangular hole (14).

2. A gear hobbing machine according to claim 1, characterized in that: the fixed subassembly of pegging graft includes two card posts (11) and two first spring (12), recess (10), two are all seted up to the top and the bottom of inserted block (9) card post (11) slidable mounting respectively corresponding in recess (10), two the one end that first spring (12) are close to each other is respectively with two one side inner wall fixed connection that recess (10) are close to each other, two the one end that first spring (12) were kept away from each other is respectively with two the one end fixed connection that card post (11) are close to each other, card hole (13), two have all been seted up on the top inner wall of slot (8) and the bottom inner wall the one end that card post (11) were kept away from each other slidable mounting respectively corresponding in calorie hole (13).

3. A gear hobbing machine as claimed in claim 2, characterized in that: the limiting grooves are formed in the inner walls of the two sides of the groove (10), limiting rods are fixedly mounted on the two sides of the clamping column (11), and the limiting rods are slidably mounted in the corresponding limiting grooves.

4. A gear hobbing machine according to claim 1, characterized in that: the gear blank bearing assembly comprises a second motor (16), a bearing plate (17), a threaded rod (18) and a locking nut (19), wherein the second motor (16) is fixedly installed at the top of the rectangular seat (15) through a support, the bearing plate (17) is fixedly installed at the output shaft end of the second motor (16), the threaded rod (18) is fixedly installed at the top of the bearing plate (17), and the locking nut (19) is fixedly installed on the threaded rod (18).

5. A gear hobbing machine according to claim 1, characterized in that: the cleaning assembly comprises a fixed plate (21), a transverse plate (22), a vertical guide rod (24), a movable plate (25), a brush plate (26), bristles (27), a second spring (28), a third motor (29), a cam (30), an air pump (31) and a gooseneck nozzle (32), the fixed plate (21) is fixedly installed at the top of the processing table (1), the transverse plate (22) is fixedly installed at the top of the fixed plate (21), a fixing groove (23) is formed in the left side of the fixed plate (21), the vertical guide rod (24) is fixedly installed in the fixing groove (23), the movable plate (25) is slidably sleeved on the vertical guide rod (24), the left side of the movable plate (25) extends out of the fixing groove (23), the brush plate (26) is fixedly installed on the left side of the movable plate (25), the bristles (27) are fixedly installed on the left side of the brush plate (26), the bottom end of the second spring (28) is fixedly connected with the inner wall of the bottom of the fixing groove (23), the top end of the second spring (28) is fixedly connected with the bottom of the movable plate (25), the mounting groove (24) is positioned above the vertical guide rod (23), the third motor (29) is fixedly installed in the mounting groove, the output shaft end of the third motor (29) extends to the outside of the mounting groove, the cam (30) is fixedly installed at the output shaft end of the third motor (29), the air pump (31) is fixedly installed at the bottom of the transverse plate (22), and one end of the gooseneck nozzle (32) is fixedly connected with the discharge end of the air pump (31).

6. A gear hobbing machine according to claim 1, characterized in that: a transverse guide rod is fixedly installed in the rectangular hole (14), and the rectangular seat (15) is sleeved on the transverse guide rod in a sliding mode.

7. A gear hobbing machine as claimed in claim 1, characterized in that: fixed mounting has locating lever (33) on the left side inner wall of slot (8), constant head tank (34) have been seted up on the left side of inserted block (9), locating lever (33) slidable mounting be in constant head tank (34).