阅读说明：本技术 一种圆柱齿轮剐齿加工装置及其加工方法 (Machining device and machining method for cylindrical gear cutting teeth ) 是由 黄云峰 于 2021-09-04 设计创作，主要内容包括：本发明公开了剐齿加工技术领域的一种圆柱齿轮剐齿加工装置及其加工方法,包括两个用于驱动工件和刀具转动的剐齿电机、用于控制剐齿电机转速的控制器和安装板,控制器固定设置在安装板上端,其中一个剐齿电机通过支架固定设置在安装板下端,安装板上端设置有刀具架,刀具架上设置有倾斜的螺纹套,螺纹套内部螺接有用于进给切削的刀轴,刀轴下端同轴固定设置有切刀,解决了由于圆柱齿轮内斜齿轮加工过程中,圆柱齿轮内部空间过小,冷却时只能从上端进行喷射冷却液,但是剐齿加工过程中由于刀具是倾斜的,从而造成冷却无法流到切削点上,从而导致加工过程中刀具温度过高,从而齿顶及侧刃出现烧损,从而导致了刀具寿命的下降问题出现。(The invention discloses a cylindrical gear cutting tooth processing device and a processing method thereof in the technical field of cutting tooth processing, and the device comprises two cutting tooth motors for driving a workpiece and a cutter to rotate, a controller for controlling the rotating speed of the cutting tooth motors and a mounting plate, wherein the controller is fixedly arranged at the upper end of the mounting plate, one cutting tooth motor is fixedly arranged at the lower end of the mounting plate through a bracket, a cutter frame is arranged at the upper end of the mounting plate, an inclined thread sleeve is arranged on the cutter frame, a cutter shaft for feed cutting is screwed in the thread sleeve, and a cutter is coaxially and fixedly arranged at the lower end of the cutter shaft, so that the problems that in the processing process of a helical gear in the cylindrical gear, the internal space of the cylindrical gear is too small, and cooling liquid can only be sprayed from the upper end during cooling, but in the processing process of the cutting tooth, the cutter is inclined, so that cooling can not flow to a cutting point, and the temperature of the cutter in the processing process is too high, so that the tooth tips and the side edges are burned, thereby causing a problem of a reduction in the life of the cutter.)

1. The utility model provides a cylindrical gear cutting tooth processingequipment, includes two and is used for driving work piece and cutter pivoted cutting tooth motor (10), is used for controlling controller (12) and mounting panel (13) of cutting tooth motor (10) rotational speed, controller (12) are fixed to be set up in mounting panel (13) upper end, and one of them cuts tooth motor (10) and sets up at mounting panel (13) lower extreme, its characterized in that through the support is fixed: the utility model discloses a gear cutting machine, including mounting panel (13), be provided with cutter frame (14) on the cutter frame (14), be provided with inclined thread bush (15) on the cutter frame (14), the inside spiro union of thread bush (15) has arbor (16) that is used for feeding the cutting, arbor (16) lower extreme coaxial fixed is provided with the cutter, is located cutter frame (14) lower extreme mounting panel (13) central authorities are provided with anchor clamps (17) that are used for pressing from both sides the dress gear blank, the gear engagement is passed through on the output shaft of gear cutting motor (10) in anchor clamps (17) outside, thread bush (15) upper end is rotated and is provided with and is used for driving drive wheel (18) that drive arbor (16) feed along arbor (16) axial slip, meshing has gear cutting motor (10) in drive wheel (18) outside, arbor (16) lower extreme is provided with the cutter, gear cutting motor (10) set up at cutter frame (14) lateral wall, and a cooling device (19) which can cool the cutting part at any time along with the descending of the cutter is arranged in the center of the clamp (17) through the bracket.

2. The cylindrical gear cutting machining device according to claim 1, wherein: the cooling device (19) comprises a cooling pipe (21) positioned in the center of the clamp (17), a cooling rack (22) is arranged at the upper end of the mounting plate (13), the cooling pipe (20) is vertically arranged on the cooling rack (22), a synchronous ring plate (23) is fixedly arranged on the cooling pipe (21), a synchronous ring (24) is rotatably arranged on the outer wall of the cutter shaft (16), the side wall of the synchronizing ring (24) is fixedly provided with two guide rods (25) which are arranged on the side wall of the thread sleeve (15) in a sliding way and used for keeping the synchronizing ring (24) not to rotate, the side wall of the synchronizing ring (24) is provided with a balance bar (26) for extruding the synchronizing ring plate (23), a spray head (27) which is aligned with the cutting point of the cutter is fixedly arranged on the side wall of the cooling pipe (20), and a return spring (28) used for enabling the cooling pipe (21) to move upwards is sleeved between the lower end of the cooling pipe (21) and the support at the bottom end.

3. The cylindrical gear cutting machining device according to claim 2, wherein: the outer wall of the cooling pipe (21) positioned inside the gear is fixedly provided with a spirally inclined brush roller (30) used for scraping cutting slag, the inclined direction of the brush roller (30) is opposite to the cutting inclination direction, and the side wall of the cooling pipe (20) close to the lower end of the brush roller (30) is provided with a cleaning hole (31).

4. The cylindrical gear cutting machining device according to claim 3, wherein: including having motor can be by headstock (34) of controller (12) control, headstock (34) are fixed to be set up at mounting panel (13) lower extreme, cooling tube (20) outer wall is provided with cleaning wheel (35) along endwise slip, cleaning wheel (35) rotate to set up on the support of fixed setting at mounting panel (13) lower extreme, cleaning wheel (35) are connected to on one of them output shaft of headstock (34) through the synchronous belt drive that the outside cover was established.

5. The cylindrical gear cutting machining device according to claim 4, wherein: tool rest (14) sliding connection is in mounting panel (13) upper end, tool rest (14) are provided with the section through the support rotation and advance lead screw (40), the section advances lead screw (40) threaded connection and fixes base plate (41) of setting on mounting panel (13), the section advances lead screw (40) outside endwise slip and is provided with and is used for driving the section to advance lead screw (40) and rotate the section of displacement and advance worm wheel (42), the section advances worm wheel (42) and rotates and set up at base plate (41) lateral wall, the section advances worm wheel (42) lower extreme meshing and has the section of rotation setting at mounting panel (13) lower extreme to advance worm (43), the section advances worm (43) and connects on headstock (34) another output shaft through synchronous belt drive.

6. The cylindrical gear cutting machining device according to claim 1, wherein: the outer wall of the threaded sleeve (15) is fixedly provided with an angle shaft (50) used for adjusting the inclination angle of the cutter shaft (16), one end of the angle shaft (50) penetrating through the cutter frame (14) is fixedly provided with a tooth cutting motor (10), the other end of the angle shaft is coaxially and fixedly provided with an adjusting motor (51) used for driving the threaded sleeve (15) to be adjusted in angle, and the adjusting motor (51) can be controlled by the controller (12).

7. The cylindrical gear cutting machining device according to claim 2, wherein: the balance bar (26) is rotatably arranged on the side wall of the synchronizing ring (24), a friction wheel (52) capable of being meshed with the synchronizing ring (24) is fixedly arranged at the front end of the balance bar (26), and a roller brush (53) is fixedly arranged on the outer wall of the balance bar (26).

8. The cylindrical gear cutting machining device according to claim 1, wherein: the cutter shaft (16) is hollow.

9. A method for machining a cylindrical gear cutting, which is applied to the device for machining a cylindrical gear cutting according to any one of claims 1 to 8, characterized in that: the method for machining the cylindrical gear cutting teeth comprises the following specific steps:

the method comprises the following steps: loading an internal tooth cylindrical blank to be processed on a clamp, programming a program and inputting the program into a controller, and simulating cutting chips to avoid generating a cutter collision event;

step two: starting a controller program, rotating a gear cutting motor to control the rotating speed of a workpiece blank and a cutter, cutting the gear, and intensively spraying cooling liquid from a spray head to the position of the gear cutting of the cutter by a cooling pipe;

step three: after the first section of gear cutting is finished, the power box drives the cutter frame to perform certain feeding on gear blanks, so that the cutter performs secondary gear cutting, and multiple progressive gear cutting is completed;

step four: and after the teeth are cut, taking down the finished product, transferring and entering the next working process.

Technical Field

The invention relates to the technical field of cutting tooth machining, in particular to a cylindrical gear cutting tooth machining device and a machining method thereof.

Background

In the field of machining, the machining technology from a blank to the surface forming of the gear teeth of the cylindrical gear is divided into two types of machining technologies based on a generating method and a forming method in principle. The generating method comprises gear hobbing and gear shaping, and the forming method comprises gear milling, gear drawing and gear shaping. However, in consideration of compact structure in the machining process of the inner helical gear, the inner part of the inner helical gear is not designed with a clearance groove and other process structures, so that the realization of the gear shaping and gear broaching process is limited, when the most common existing gear cutting machining process method is adopted, no matter how the intersection angle of the shafts is changed in an optional range, the vibration and noise in the machining process are large, the tooth surface effect is poor, the tooth surface has obvious extrusion marks and tooth direction fluctuation errors caused by synchronous fluctuation of a workpiece shaft and a cutter shaft, and the tooth surface of a product has a concave-convex phenomenon caused by extrusion; so that the tooth crest and the side edge of the machined cutter have burning loss.

In the processing process of the internal helical gear of the cylindrical gear, the internal space of the cylindrical gear is too small, and cooling liquid can only be sprayed from the upper end during cooling, but in the processing process of cutting the teeth, because the cutter is inclined, the cutting point of the cutter and the cylindrical gear is not at the lowest point of the cutter, the cooling cannot flow to the cutting point, so that the temperature of the cutter is too high in the processing process, the tooth crest and the side edge are burnt, and the service life of the cutter is reduced; secondly because the cooling liquid viscidity in the helical teeth course of working in the cylinder for cutting residue is attached to the roller gear inboard, can't throw away it through centrifugal force through the high-speed rotation of roller gear, in the cutter cutting process, the roller gear inboard appears easily and cutter abnormal wear and wire drawing phenomenon appears, thereby when leading to the product yields to descend, the problem of cost rising.

Based on the above, the invention designs a cylindrical gear cutting tooth machining device and a machining method thereof, so as to solve the problems.

Disclosure of Invention

The invention aims to provide a device and a method for machining a cylindrical gear cutting tooth, which aim to solve the problem that in the background technology, the inner space of a cylindrical gear is too small in the machining process of an inner helical gear of the cylindrical gear, and cooling liquid can only be sprayed from the upper end in the cooling process, but in the machining process of the cutting tooth, because a cutter is inclined, the cutting point of the cutter and the cylindrical gear is not at the lowest point of the cutter, so that cooling cannot flow to the cutting point, the temperature of the cutter is too high in the machining process, and the tooth crest and a side edge are burnt, so that the service life of the cutter is shortened; secondly because the cooling liquid viscidity in the helical teeth course of working in the cylinder for cutting residue is attached to the roller gear inboard, can't throw away it through centrifugal force through the high-speed rotation of roller gear, in the cutter cutting process, the roller gear inboard appears easily and cutter abnormal wear and wire drawing phenomenon appears, thereby when leading to the product yields to descend, the problem of cost rising.

In order to achieve the purpose, the invention provides the following technical scheme: a cylindrical gear cutting machining device comprises two cutting motors for driving a workpiece and a cutter to rotate, a controller for controlling the rotating speed of the cutting motors and a mounting plate, wherein the controller is fixedly arranged at the upper end of the mounting plate, one cutting motor is fixedly arranged at the lower end of the mounting plate through a support, a cutter frame is arranged at the upper end of the mounting plate, an inclined thread sleeve is arranged on the cutter frame, a cutter shaft for feeding and cutting is screwed in the thread sleeve, a cutter is coaxially and fixedly arranged at the lower end of the cutter shaft, a clamp for clamping a gear blank is arranged in the center of the mounting plate at the lower end of the cutter frame, the outer side of the clamp is meshed on an output shaft of the cutting motor through a gear, a driving wheel which slides axially along the cutter shaft and is used for driving the cutter shaft to feed is rotatably arranged at the upper end of the thread sleeve, and the cutting motors are meshed outside the driving wheel, the lower end of the cutter shaft is provided with a cutter, the tooth cutting motor is arranged on the side wall of the cutter frame, and the center of the clamp is provided with a cooling device which can cool a cutting part at any time along with the descending of the cutter through a support.

As a further scheme of the invention, the cooling device comprises a cooling pipe located in the center of the clamp, a cooling frame is arranged at the upper end of the mounting plate, the cooling pipe is vertically arranged on the cooling frame, a synchronous ring plate is fixedly arranged on the cooling pipe, a synchronous ring is rotatably arranged on the outer wall of the cutter shaft, two guide rods which are slidably arranged on the side wall of the threaded sleeve and used for keeping the synchronous ring not to rotate are fixedly arranged on the side wall of the synchronous ring, a balance rod used for extruding the synchronous ring plate is arranged on the side wall of the synchronous ring, a spray head aligned with a cutting point of a cutter is fixedly arranged on the side wall of the cooling pipe, and a return spring used for enabling the cooling pipe to move upwards is sleeved between the lower end of the cooling pipe and a bracket at the bottom end of the cooling pipe.

According to the further scheme of the invention, a spirally inclined brush roller for scraping off cutting slag is fixedly arranged on the outer wall of the cooling pipe positioned in the gear, the inclined direction of the brush roller is opposite to the cutting inclination direction, and a cleaning hole is formed in the side wall of the cooling pipe close to the lower section of the brush roller.

The power box is fixedly arranged at the lower end of the mounting plate, the outer wall of the cooling pipe is axially and slidably provided with a cleaning wheel, the cleaning wheel is rotatably arranged on a bracket fixedly arranged at the lower end of the mounting plate, and the cleaning wheel is connected to one output shaft of the power box through a synchronous belt sleeved on the outer side in a transmission manner.

As a further scheme of the invention, the tool rest is connected to the upper end of the mounting plate in a sliding mode, the tool rest is provided with a section screw feeding rod through a support in a rotating mode, the section screw feeding rod is connected with a base plate fixedly arranged on the mounting plate in a threaded mode, a section screw feeding wheel used for driving the section screw feeding rod to rotate and displace is arranged on the outer side of the section screw feeding rod in an axial sliding mode, the section screw feeding wheel is rotatably arranged on the side wall of the base plate, a section screw feeding rod rotatably arranged at the lower end of the mounting plate is meshed with the lower end of the section screw feeding wheel, and the section screw feeding rod is connected to the other output shaft of the power box through a synchronous belt in a transmission mode.

As a further scheme of the invention, an angle shaft for adjusting the inclination angle of the cutter shaft is fixedly arranged on the outer wall of the threaded sleeve, a tooth cutting motor is fixedly arranged at one end of the angle shaft penetrating through the cutter frame, an adjusting motor for driving the threaded sleeve to adjust the angle is coaxially and fixedly arranged at the other end of the angle shaft, and the adjusting motor can be controlled by a controller.

As a further scheme of the invention, the balancing rod is rotatably arranged on the side wall of the synchronizing ring, a friction wheel which can be meshed with the synchronizing ring is fixedly arranged at the front end of the balancing rod, and a roller brush is fixedly arranged on the outer wall of the balancing rod.

As a further scheme of the invention, the cutter shaft is hollow.

A method for processing cylindrical gear cutting teeth comprises the following specific steps:

the method comprises the following steps: loading an internal tooth cylindrical blank to be processed on a clamp, programming a program and inputting the program into a controller, and simulating cutting chips to avoid generating a cutter collision event;

step two: starting a controller program, rotating a gear cutting motor to control the rotating speed of a workpiece blank and a cutter, cutting the gear, and intensively spraying cooling liquid from a spray head to the position of the gear cutting of the cutter by a cooling pipe;

step three: after the first section of gear cutting is finished, the power box drives the cutter frame to perform certain feeding on gear blanks, so that the cutter performs secondary gear cutting, and multiple progressive gear cutting is completed;

step four: and after the teeth are cut, taking down the finished product, transferring and entering the next working process.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the automatic gouging-out machine, the two tooth cutting motors are controlled to synchronously rotate at different speeds through the controller, so that the cutter frame drives a workpiece to rotate, the driving wheel drives the cutter shaft to rotate, the cutter shaft drives the cutter to rotate, and the cutter shaft rotates to be fed under the action of the thread sleeve, so that a complete gouging-out process is completed, and the phenomenon that the cutter is damaged due to the fact that the cutting feed of the cutter is not matched with the cutting rotating speed is avoided; secondly carry out by the epaxial fixed point jet cooling mode down through the cooling device that can with cutter synchronous displacement again to make the cutter can carry out high-efficient cooling when cutting out, avoid cutting in-process cutter overheated, the problem that the scaling loss appears.

2. The section feeding worm rotates to drive the section feeding worm wheel to rotate so as to indirectly drive the cutter to further approach the workpiece, thereby completing the discontinuous feeding cutting, and avoiding the phenomenon that the cutter is damaged due to the excessive cutting amount of the cutter at one time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced 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 that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic side-view, partially cross-sectional structural view of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;

FIG. 4 is an enlarged view of the structure at B in FIG. 2 according to the present invention;

FIG. 5 is a schematic side-plan view in axial cross-section of the present invention;

FIG. 6 is a schematic side-view, bottom-view, general configuration of the present invention;

FIG. 7 is a schematic view of the process flow structure of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

the automatic cleaning device comprises a tooth cutting motor 10, a controller 12, a mounting plate 13, a cutter frame 14, a threaded sleeve 15, a cutter shaft 16, a clamp 17, a driving wheel 18, a cooling device 19, a cooling pipe 21, a cooling pipe 20, a synchronous ring plate 23, a synchronous ring 24, a guide rod 25, a balance rod 26, a spray head 27, a return spring 28, a brush roller 30, a cleaning hole 31, a power box 34, a cleaning wheel 35, a segment feed screw rod 40, a base plate 41, a segment feed worm wheel 42, a segment feed worm 43, an angle shaft 50, an adjusting motor 51, a friction wheel 52 and a roller brush 53.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: a cylindrical gear cutting tooth processing device comprises two cutting tooth motors 10 for driving a workpiece and a cutter to rotate, a controller 12 for controlling the rotating speed of the cutting tooth motors 10 and a mounting plate 13, wherein the controller 12 is fixedly arranged at the upper end of the mounting plate 13, one cutting tooth motor 10 is fixedly arranged at the lower end of the mounting plate 13 through a bracket, a cutter frame 14 is arranged at the upper end of the mounting plate 13, an inclined thread sleeve 15 is arranged on the cutter frame 14, a cutter shaft 16 for feed cutting is screwed in the thread sleeve 15, a cutter is coaxially and fixedly arranged at the lower end of the cutter shaft 16, a clamp 17 for clamping a gear blank is arranged in the center of the mounting plate 13 at the lower end of the cutter frame 14, the outer side of the clamp 17 is meshed on an output shaft of the cutting tooth motor 10 through a gear, a driving wheel 18 which axially slides along the cutter shaft 16 and is arranged at the upper end of the thread sleeve 15, the driving wheel 18 is meshed with the cutting tooth motor 10, a cutter is arranged at the lower end of the cutter shaft 16, the tooth cutting motor 10 is arranged on the side wall of the cutter frame 14, and a cooling device 19 which can cool a cutting part at any time along with the descending of the cutter is arranged in the center of the clamp 17 through a bracket;

when the invention is used, as shown in fig. 1 and 2, the controller 12 simultaneously controls and starts two motors of the tooth cutting motor 10, so as to drive the clamp 17 to rotate on the mounting plate 13, and simultaneously, the drive wheel 18 is driven to rotate, so that the gear blank in the middle of the clamp 17 rotates, and simultaneously, the drive wheel 18 drives the cutter shaft 16 to rotate in the threaded sleeve 15, the cutter shaft 16 rotates and drives the cutter at the front end to rotate, the cutter rotates and is meshed with the rotating gear blank (the rotating speed of the workpiece along with the clamp 17 is n1, the rotating speed of the cutter along with the cutter shaft 16 is n2, the ratio of n1 to n2 is equal to the ratio of the number of teeth of the cutter to the number of teeth of the workpiece, the shape of the blade of the cutter is designed to be conjugate with the shape of the tooth of the workpiece, the rotation of the workpiece and the cutter is equal to the generating movement of hobbing or slotting, the velocity V2 at the point on the blade is decomposed into the tangential direction and the axial direction of the workpiece, the tangential velocity component is V2t, and the axial velocity component is V2a, the algebraic sum of the speed V1 of V2t and the speed V1 of a point on the workpiece forms a tangential relative speed Vt, the speed V is combined with V2a to form a cutting speed V, the cutting point is continuously changed on the blade edge, V is changed along with the cutting point V, so as to form a cutting action, the axis of the workpiece spindle and the axis of the cutter spindle are relatively inclined during processing to form an axis intersection angle alpha, the angle alpha is determined according to the tooth direction helix angle of the workpiece and the tooth direction helix angle of the cutter, the cutter shaft 16 simultaneously rotates in the thread sleeve 15 when rotating, the cutter shaft 16 generates downward displacement under the action of the thread sleeve 15 (as shown in fig. 1 and 2, the cutting speed when the cutter shaft 16 rotates in the thread sleeve 15 to drive the cutter to rotate to perform core cutting on the cylindrical blank workpiece is related to the feeding speed, the cutting speed is faster and the feeding speed is faster, so as to complete the core cutting process of the cylindrical gear, meanwhile, the cooling device 19 in the center of the workpiece is started to feed along with the cutter, so that fixed-point cooling is completed, and the phenomenon that the cutter is burnt due to high temperature in the cutting process of the cutter and a blank workpiece is avoided;

according to the invention, the controller 12 controls the two tooth cutting motors 10 to synchronously rotate at different speeds, so that the cutter frame 14 drives a workpiece to rotate, and the driving wheel 18 drives the cutter shaft 16 to rotate, so that the cutter shaft 16 drives the cutter to rotate, and the cutter shaft 16 rotates and is fed under the action of the thread sleeve 15, so that a complete gouging-out process is completed, and the phenomenon that the cutter is damaged due to mismatching of cutting feed and cutting rotating speed of the cutter is avoided; secondly carry out by the epaxial fixed point jet cooling mode down through the cooling device 19 that can with cutter synchronous displacement again to make the cutter can carry out high-efficient cooling when cutting out, avoid cutting in-process cutter overheated, the problem that the scaling loss appears.

As a further scheme of the invention, the cooling device 19 comprises a cooling pipe 21 positioned in the center of the clamp 17, a cooling frame 22 is arranged at the upper end of the mounting plate 13, the cooling pipe 20 is vertically arranged on the cooling frame 22, a synchronizing ring plate 23 is fixedly arranged on the cooling pipe 21, a synchronizing ring 24 is rotatably arranged on the outer wall of the cutter shaft 16, two guide rods 25 which are slidably arranged on the side wall of the thread bush 15 and used for keeping the synchronizing ring 24 not to rotate are fixedly arranged on the side wall of the synchronizing ring 24, a balance rod 26 used for extruding the synchronizing ring plate 23 is arranged on the side wall of the synchronizing ring 24, a spray head 27 aligned with a cutting point of a cutter is fixedly arranged on the side wall of the cooling pipe 20, and a return spring 28 used for enabling the cooling pipe 21 to move upwards is sleeved between the lower end of the cooling pipe 21 and a bracket at the bottom end of the cooling pipe 21.

When the invention is used, high-pressure cooling liquid is injected into the cooling pipe 21, when the cutter shaft 16 descends, the synchronizing ring 24 which is rotatably arranged at the outer side descends (as shown in figures 2 and 3, wherein the guide rod 25 at the upper end of the synchronizing ring 24 slides along the axis of the threaded sleeve 15 on the side wall of the threaded sleeve 15, so that the synchronous rotation of the synchronizing ring 24 and the cutter shaft 16 is avoided), the synchronizing ring 24 descends to drive the balance rod 26 to descend, the balance rod 26 descends to press the synchronizing ring plate 23 on the outer wall of the cooling pipe 21 to descend (the large synchronizing ring plate 23 is matched with the balance rod 26, so as to compensate the position difference between the balance rod 26 and the axis of the cooling pipe 21 when the cutter shaft 16 inclines), the synchronizing ring plate 23 descends to drive the cooling pipe 21 to descend by overcoming the acting force of the return spring 28 at the lower end, so that the spray head 27 on the side wall of the cooling pipe 21 descends to be synchronous with the cutter at the lower end of the cutter shaft 16, so that the cutting liquid inside can be sprayed to the cutting point of the cutter and a workpiece, thereby cooling the cutting point of the cutter and the workpiece at the same time, and avoiding the phenomenon of burning loss of the workpiece and the cutter.

As a further scheme of the invention, a spirally inclined brush roller 30 for scraping off cutting slag is fixedly arranged on the outer wall of a cooling pipe 21 positioned in the gear, the inclined direction of the brush roller 30 is opposite to the cutting inclination direction, and a cleaning hole 31 is formed in the side wall of the cooling pipe 20 close to the lower end of the brush roller 30;

as shown in fig. 6, when a workpiece is cut, cutting debris can be generated and can adhere to the cutting surface of the workpiece under the action of a cooling liquid, foreign matters can be generated between the cutter and the workpiece when the cutter performs the next cutting, so that the surface of the cutter or the cut workpiece can be scratched, when the cut workpiece rotates, the cutting debris can be scraped under the action of the brush roller 30 with opposite cutting inclination directions, the cooling liquid can be sprayed to the inner side surface of the workpiece which is being scraped under the action of the cleaning hole 31, the cutting surface on the inner side of the workpiece can be cleaned and scraped at the same time, the cutting debris can be cleaned, and the phenomenon that the cutting debris damages the cutter and the processing surface of the workpiece can be avoided.

As a further scheme of the invention, the device comprises a power box 34 which is provided with a motor and can be controlled by a controller 12, wherein the power box 34 is fixedly arranged at the lower end of a mounting plate 13, a cleaning wheel 35 is arranged on the outer wall of a cooling pipe 20 in an axial sliding manner, the cleaning wheel 35 is rotationally arranged on a bracket fixedly arranged at the lower end of the mounting plate 13, and the cleaning wheel 35 is connected to one output shaft of the power box 34 through a synchronous belt sleeved on the outer side in a transmission manner;

when the invention is used; after the workpiece is machined, the cutter rotates, and the workpiece also rotates along with the cutter, so that metal residues on the brush roller 30 can enter the machining inner side of the workpiece again, the problem that the workpiece enters the next machining process can be influenced, and a set of cleaning device is expected to be arranged to solve the problem;

when the bevel gear cleaning device is used, when a workpiece rotates to retract, the power box 34 drives the cleaning wheel 35 to rotate through the synchronous belt, the cleaning wheel 35 drives the cooling pipe 21 to rotate, the cooling pipe 21 drives the brush roller 30 to rotate in the same direction as the workpiece in a rotating mode, and the rotating speed is higher than the rotating speed of the workpiece, so that metal residues in helical teeth on the inner side of the workpiece are swept to the lower end of the bevel gear along the helical teeth, the internal cleaning of the bevel gear during retracting is completed, the bevel gear cleaning process is completed, and the problem of interference of the metal residues in the bevel gear on the subsequent machining process of the bevel gear is solved.

As a further scheme of the invention, the tool rack 14 is slidably connected to the upper end of the mounting plate 13, the tool rack 14 is rotatably provided with a section screw feeding rod 40 through a support, the section screw feeding rod 40 is in threaded connection with a base plate 41 fixedly arranged on the mounting plate 13, the outer side of the section screw feeding rod 40 is axially and slidably provided with a section screw feeding worm wheel 42 for driving the section screw feeding rod 40 to rotate and displace, the section screw feeding worm wheel 42 is rotatably arranged on the side wall of the base plate 41, the lower end of the section screw feeding worm wheel 42 is engaged with a section screw feeding rod 43 rotatably arranged at the lower end of the mounting plate 13, and the section screw feeding rod 43 is connected to the other output shaft of the power box 34 through synchronous belt transmission;

when helical gear teeth needing to be processed are too deep, the cutting amount is possibly overlarge in one-time gouging-out, so that the x phenomenon that a cutter is damaged occurs, multiple-time feeding gouging-out is needed, and a set of transverse feeding device is expected to be arranged to solve the problem;

when the automatic tool retracting device is used, after a workpiece is retracted, the power box 34 drives the section feeding worm 43 to rotate and the section feeding worm 43 rotates, the section feeding worm 43 rotates and drives the section feeding worm wheel 42 to drive the section feeding screw rod 40 to rotate (self-locking exists between the section feeding worm 43 and the section feeding worm wheel 42, the phenomenon that a cutter is collided and damaged due to vibration of the cutter and displacement of the workpiece in the cutting process of the workpiece is avoided, the section feeding screw rod 40 rotates on the base plate 41, feeding of the section feeding screw rod 40 is completed, and the section feeding screw rod 40 moves to pull the cutter frame 14 close to the workpiece (the phenomenon that the cutter frame 14 is moved to be separated from the brush roller 30 due to the fact that the workpiece is moved to be separated from the workpiece, and the phenomenon that residue cleaning is not complete is caused);

the section feeding worm 43 rotates to drive the section feeding worm gear 42 to rotate so as to indirectly drive the cutter to further approach the workpiece, thereby completing the discontinuous feeding cutting, and avoiding the phenomenon that the cutter is damaged due to the excessive cutting amount of the cutter at one time.

As a further scheme of the present invention, an angle shaft 50 for adjusting the inclination angle of the cutter shaft 16 is fixedly arranged on the outer wall of the threaded sleeve 15, a tooth cutting motor 10 is fixedly arranged at one end of the angle shaft 50 penetrating through the cutter holder 14, an adjusting motor 51 for driving the threaded sleeve 15 to adjust the angle is coaxially and fixedly arranged at the other end, and the adjusting motor 51 can be controlled by the controller 12; the threaded sleeve 15 is adjusted to rotate on the tool rest 14 by the controller 12 (as shown in fig. 1 and 2, the threaded sleeve 15 is rotatably arranged on the tool rest 14, so that the cutting inclination, namely the tooth inclination of the bevel gear, can be adjusted), so that the cutter shaft 16 rotates, the included angle between the cutter shaft 16 and the axis of the workpiece is changed, the tooth inclination angle is changed, and the equipment has greater applicability.

As a further scheme of the invention, the balance bar 26 is rotationally arranged on the side wall of the synchronizing ring 24, a friction wheel 52 which can be meshed with the synchronizing ring 24 is fixedly arranged at the front end of the balance bar 26, and a roller brush 53 is fixedly arranged on the outer wall of the balance bar 26; when the brush roller 30 rotates and cleans workpieces, the cooling pipe 21 rotates and drives the synchronous ring plate 23 to rotate, so that the friction wheel 52 is driven to rotate, the balance rod 26 is driven to rotate on the side wall of the synchronous ring 24 when the friction wheel 52 rotates, the roller brush 53 on the outer side of the balance rod 26 is used for cleaning the cutter rotating and retreating, metal cutting residues on the cutter are swept, and the risk that the metal residues scratch the cutter and the workpieces is avoided.

As a further proposal of the invention, the cutter shaft 16 is hollow; the heat radiation intensity of the cutter shaft 16 is accelerated.

A method for processing cylindrical gear cutting teeth comprises the following specific steps:

the method comprises the following steps: loading an internal tooth cylindrical blank to be processed on a clamp, programming a program and inputting the program into a controller, and simulating cutting chips to avoid generating a cutter collision event;

step two: starting a controller program, rotating a gear cutting motor to control the rotating speed of a workpiece blank and a cutter, cutting the gear, and intensively spraying cooling liquid from a spray head to the position of the gear cutting of the cutter by a cooling pipe;

step three: after the first section of gear cutting is finished, the power box drives the cutter frame to perform certain feeding on gear blanks, so that the cutter performs secondary gear cutting, and multiple progressive gear cutting is completed;

step four: and after the teeth are cut, taking down the finished product, transferring and entering the next working process.