CN114226874A

CN114226874A - Gear hobbing machine

Info

Publication number: CN114226874A
Application number: CN202111664221.5A
Authority: CN
Inventors: 邱前远; 任光华
Original assignee: Chongqing Xingji Gear Co ltd
Current assignee: Chongqing Xingji Gear Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-03-25
Anticipated expiration: 2041-12-31
Also published as: CN114226874B

Abstract

The invention belongs to the technical field of gear machining equipment, and particularly discloses a gear hobbing machine, which comprises a machine tool, a workbench and a hob of the gear hobbing machine, wherein the workbench is provided with a fixed part for fixing a gear, and a box body is arranged around the workbench; the machine tool is characterized by further comprising a conveying unit, a grabbing unit and a polishing unit, wherein a channel is arranged in the machine tool, one section of the conveying unit is located in the channel and located on one side of the workbench, and the conveying unit is provided with a plurality of gear parts for placing gears; the grabbing unit is fixed on the workbench and comprises a mechanical arm and a grabbing part, the mechanical arm can rotate and stretch, and the grabbing part is used for grabbing the gear; the polishing unit is arranged on the workbench and used for polishing the gear. Compared with the prior art, the hobbing cutter, the conveying unit, the grabbing unit, the polishing unit and other structures of the gear hobbing machine can be matched and linked with each other, so that the gear machining is time-saving and labor-saving, and the efficiency is higher.

Description

Gear hobbing machine

Technical Field

The invention belongs to the technical field of gear machining equipment, and particularly discloses a gear hobbing machine.

Background

A gear hobbing machine is a machine tool which is most widely applied in gear processing machines, and straight teeth and helical gears can be cut on the gear hobbing machine, and worm gears, chain wheels and the like can also be processed. The gear hobbing machine is widely applied to various machine manufacturing industries such as automobiles, tractors, machine tools, engineering machinery, mining machinery, metallurgical machinery, petroleum, instruments, aircraft spacecrafts and the like.

When the existing gear hobbing machine is adopted for machining the gear, the gear blank which is machined and formed is fixed on a workbench of the gear hobbing machine, and the gear machining can be carried out on the gear blank after the gear blank is automatically machined by the hobbing cutter; after the gear is machined, the gear can be detached from the workbench and then deburred or polished to obtain a finished gear.

When the existing gear hobbing machine is used for processing gears, the following problems exist:

1. the gear blank is installed on the workstation to and the gear takes off from the workstation, needs artifical or other equipment to accomplish, and needs the gear hobbing machine to shut down the operation, very consumes time, and has the potential safety hazard.

2. After the gear is taken off from the gear hobbing machine, special equipment is needed to be used for deburring or polishing the gear, so that the production process of the gear is complex, the production period is long, the labor participation in the production process is high, and the labor and the time are wasted.

3. The process of producing the gear leads to the fact that the gear cannot be produced continuously and rapidly in batches, and only can be produced singly, so that the production of the single gear is long in time, and further the overall production efficiency of the gear is low.

4. In the process of machining a gear by using the conventional gear hobbing machine, manual intervention is more, so that the precision of the gear is greatly influenced by manpower, and the machining precision of the gear is easy to have larger error.

Disclosure of Invention

The invention aims to provide a gear hobbing machine, which aims to solve the problems that the gear hobbing machine wastes time and labor in gear machining and is low in efficiency.

In order to achieve the purpose, the basic scheme of the invention is as follows: a gear hobbing machine comprises a machine tool of the gear hobbing machine, a workbench and a hob, wherein the workbench is provided with a fixing part for fixing a gear, and a box body is arranged around the workbench; the machine tool is characterized by further comprising a conveying unit, a grabbing unit and a polishing unit, wherein a channel is arranged in the machine tool, one section of the conveying unit is located in the channel and located on one side of the workbench, and the conveying unit is provided with a plurality of gear parts for placing gears; the grabbing unit is fixed on the workbench and comprises a mechanical arm and a grabbing part, the mechanical arm can rotate and stretch, and the grabbing part is used for grabbing the gear; the polishing unit is arranged on the workbench and used for polishing the gear.

The working principle of the basic scheme is as follows: this gear hobbing machine can process and polish the gear, places a plurality of gear blanks one by one on the gear portion of transfer unit, starts the transfer unit, and in the transfer unit data send process, can move the gear blank to the passageway in. When the gear blank conveys to workstation one side, start and snatch the unit, adopt the portion of snatching to take the gear blank, go out with the fixed part that rotates with the gear blank removal to the workstation through the flexible of arm, fix the gear blank through the fixed part. Then the hob is started to process the gear blank, after the gear teeth of the gear blank are processed, the gear is moved to the polishing unit, burrs of the gear are removed through the polishing unit, the gear teeth are polished, and a gear finished product can be obtained. And the grabbing unit is started again to grab the gear and place the gear on the gear part of the transmission unit, and the gear finished product is transmitted to the outside of the machine tool along with the transmission of the transmission unit, so that the gear can be used.

The beneficial effect of this basic scheme lies in:

1. the gear hobbing machine can fix the gear blank and place the gear without the participation of manual or other equipment by grabbing the gear blank, thereby avoiding the potential safety hazard in the manual operation process, avoiding the shutdown operation and reducing the time consumed by gear processing.

2. This gear hobbing machine can adopt the unit of polishing immediately to carry out burring or the processing of polishing after the gear processing tooth, makes the production process complexity of gear reduce, and the production cycle of gear subtracts the weak point, and the production process need not artifical the participation, and then makes the course of working labour saving and time saving, convenient and fast, the efficiency improvement of gear.

3. This gear hobbing machine snatchs the installation of unit to the gear and takes through transporting continuously of conveying unit, can make the gear can batch rapid production, though gear hobbing machine also carries out single processing to the gear, but the length of time that the course of working of every gear consumes shortens greatly, and then makes the overall production efficiency of gear promote greatly.

4. This gear hobbing machine carries out the in-process of processing to the gear, from gear blank conveying entering gear hobbing machine, conveys out gear hobbing machine to the gear finished product, and whole process need not artificial intervention, is all through gear hobbing machine cooperation each other to make the machining precision of gear not receive artificial intervention's influence, and then avoid gear machining precision great error to appear.

Compared with the prior art, the hobbing cutter, the conveying unit, the grabbing unit, the polishing unit and other structures of the gear hobbing machine can be matched and linked with each other, so that the gear machining is time-saving and labor-saving, and the efficiency is higher.

Further, the transmission unit comprises a horizontal transmission part, and a plurality of gear parts are uniformly arranged on the transmission part at intervals; the gear part comprises a base fixed on the transmission part, and a supporting seat for fixing the gear is detachably connected to the base.

Has the advantages that: can carry out better fixed to the gear blank through the supporting seat, can make the gear blank convey through the base, if the supporting seat is impaired in the use, can replace.

Further, be equipped with the shaft hole on the base, the supporting seat is equipped with multiple specification, the below and the shaft hole block of supporting seat are connected, the shaft hole radially is equipped with and supports tight bolt of supporting seat below.

Has the advantages that: the supporting seats with different specifications can be correspondingly used for gears with different specifications, so that the gear blank can be well fixed with the supporting seats, and the grabbing unit can conveniently grab the gear blank. Through shaft hole and supporting seat below block to adopt to support the tight mode of tight bolt support, with supporting seat and base fixed connection, make the supporting seat change comparatively convenient and fast.

Further, a detection mechanism for detecting the completion of gear machining is arranged on the conveying unit.

Has the advantages that: through detecting the structure, can detect the gear that has already been processed, avoid gear finished product to be introduced into the lathe again and process.

Further, detection mechanism is including rotating the piece, being located the outside response piece of box and being located the support piece of passageway exit, it is connected with the base rotation to rotate the piece, it is equipped with the lug that is used for the response of response piece to rotate to be equipped with, support the piece and can make and rotate the piece and rotate.

Has the advantages that: the gear is passed out from the passageway after accomplishing, supports the piece and can make and rotate the piece, makes to transfer to response department when corresponding gear and makes, and response lug and response piece dislocation, response piece can not respond to the lug and can believe that corresponding gear has accomplished the processing, need not process in conveying the passageway.

Further, a piece that is equipped with on the base, it is connected with a piece lateral part rotation to rotate the piece, it is L type structure to rotate the piece, the lug sets up in the one side of rotating the piece and keeping away from the supporting seat.

Has the advantages that: the supporting block is convenient for installation of the rotating piece, and the rotating piece is of an L-shaped structure and is convenient for the rotating piece to rotate through the supporting block.

Further, the sensing piece and the rotating piece are both positioned on the inner side of the transmission part.

Has the advantages that: the outside of conveying portion will be placed the gear blank and collect the gear finished product, will respond to the piece and rotate the inboard that all is located conveying portion, the use of the conveying unit of being convenient for.

Further, a main shaft is arranged on the grabbing part, and a plurality of grabbing claws are arranged around the main shaft.

Has the advantages that: can be convenient for install the gear blank who snatchs on the fixed part, also can in time snatch the finished product of gear that has already processed simultaneously.

Further, be equipped with the rolling disc on the workstation, the fixed part sets up on the rolling disc, hobbing cutter and unit of polishing all correspond with the rolling disc position.

Has the advantages that: the gear blank that fixes on the fixed part is after processing good tooth, starts the rolling disc and rotates and to make gear removal unit department of polishing, can start the unit of polishing and polish and the burring to the gear, and the setting of rolling disc has reduced the complicated operation of gear from the processing position to the position of polishing, further carries into the machining efficiency of gear.

Further, the polishing unit comprises a driving gear and a polishing gear, a telescopic arm connected with the polishing gear is arranged on the workbench, and the driving gear is used for driving the driving gear to rotate.

Has the advantages that: make gear revolve through drive gear, the rethread gear of polishing is to this burring and polish, can accomplish the process of polishing of gear fast, and the gear is located the unit back of polishing, and the flexible arm of accessible will polish the gear and remove outside the gear, and then avoid polishing the influence of gear to the gear.

Drawings

FIG. 1 is a schematic view of one embodiment of a gear hobbing machine of the present invention;

fig. 2 is a top view of the transfer unit.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the automatic grinding machine comprises a machine tool 10, a workbench 11, a hob 12, a rotating disc 13, a fixing part 14, a box body 15, a channel 16, an opening 17, a conveying part 21, a base 22, a shaft hole 23, a supporting seat 24, a clamping bolt 25, a support 26, a supporting plate 27, a clamping block 31, a sensing piece 32, a rotating piece 33, a convex block 34, a supporting block 35, a mechanical arm 41, a main shaft 42, a grabbing claw 43, a telescopic arm 51, a driving gear 52 and a grinding gear 53.

As shown in fig. 1 and 2, a gear hobbing machine includes a machine tool 10 of the gear hobbing machine, a table 11, a hob 12, a conveying unit, a gripping unit, and a grinding unit, wherein the table 11 is provided on the machine tool 10, a fixing portion 14 for fixing a gear is provided on the table 11, and the hob 12 is provided on the fixing portion 14 side for hobbing the gear. A rotating disc 13 is arranged inside the workbench 11, a fixing part 14 is arranged on the rotating disc 13, and the hob 12 and the grinding unit correspond to the rotating disc 13 in position. A case 15 is provided around the table 11, and the case 15 encloses a machining space of the gear.

The polishing unit is disposed on the worktable 11, and the polishing unit and the fixing portion 14 are located at the same height. The polishing unit is arranged on the workbench 11 and used for polishing the gear, the polishing unit comprises a driving gear 52 and a polishing gear 53, a telescopic arm 51 connected with the polishing gear 53 is arranged on the workbench 11, and the driving gear 52 is used for driving the gear 52 to rotate.

The grabbing unit is fixed on one side of the workbench 11 and comprises a mechanical arm 41 and a grabbing portion, the mechanical arm 41 can move up and down and rotate along the workbench 11, the mechanical arm 11 can stretch and retract, and the grabbing portion is used for grabbing the gear. In the embodiment, a main shaft 42 is provided on the grasping portion, and a plurality of grasping claws 43, preferably three grasping claws 43, are provided around the main shaft 42.

As shown in fig. 2, a channel 16 is provided in the machine tool 10, one section of the transfer unit is located in the channel 16 and is located on one side of the worktable 11, an opening 17 is provided in the middle of the channel 16, and the opening 17 is communicated with the box 15 to facilitate the grabbing claw 43 to grab the gear on the transfer unit from the opening 17. The side of the transport unit outside the channel 16 is provided with a support plate 27 and a bracket 26 for supporting the transport unit outside the machine tool 10. The transmission unit comprises a horizontal transmission part 21 and a plurality of gear parts for placing gears, and the plurality of gear parts are uniformly arranged on the transmission part 21 at intervals. The gear part comprises a base 22 fixed on the transmission part 21, and a supporting seat 24 of a fixed gear is detachably connected on the base 22; in order to facilitate the processing of gears with different specifications, the supporting seat 24 is provided with a plurality of specifications corresponding to the gears with different specifications; in this embodiment, the base 22 is provided with a shaft hole 23, the lower portion of the support seat 24 is connected with the shaft hole 23 in a clamping manner, and the shaft hole 23 is radially provided with a fastening bolt 25 for fastening the lower portion of the support seat 24.

The transmission unit is provided with a detection mechanism for detecting the completion of gear machining, the detection mechanism comprises a rotating part 33, a sensing part 32 positioned outside the box body 15 and a supporting block 31 positioned at the outlet of the channel 16, the rotating part 33 is rotatably connected with the base 22, a convex block 34 used for sensing by the sensing part 32 is arranged on the rotating part 33, and the supporting block 31 can enable the rotating part 33 to rotate. In this embodiment, the supporting block 35 is disposed on the base 22, the rotating member 33 is rotatably connected to a side portion of the supporting block 35, the rotating member 33 is in an L-shaped structure, and the protrusion 34 is disposed on a side of the rotating member 33 away from the supporting seat 24. To facilitate the use of the present gear hobbing machine, the sensing element 32 and the rotating element 33 are both located inside the transfer part 21 in this embodiment.

In the present embodiment, the rotation, movement, and extension of the mechanical arm 11, the extension of the telescopic arm, the transmission of the transmission portion, the control of the transmission portion 21 after the sensing of the convex block 34 by the sensing member 32, and the machine tool 10, the workbench 11, the hob 12, the fixing portion 14, the box 15, etc. may all adopt the existing structures, and these structures are not described herein again.

The specific implementation process is as follows: the gear hobbing machine can process and polish gears, a corresponding supporting seat 24 is inserted into a shaft hole 23 of a base 22 according to the specification of the gears when a transmission unit is positioned outside a machine tool 10, the supporting seat 24 is fixed by a fastening bolt 25, a gear blank is placed on the supporting seat 24, a rotating piece 33 is rotated to enable a convex block 34 to correspond to an induction piece 32, and a transmission part 21 is started to transmit the gear blank to the inside of the machine tool 10.

When the gear blank is conveyed to one side of the workbench 11 and positioned at the opening 17, the gear blank is grabbed by the grabbing unit, the mechanical arm 41 is rotated to enable the grabbing claw 43 to be grabbed in alignment with the gear position, the mechanical arm 41 is rotated again, and the gear blank is stretched to a proper length to align the gear blank with the workbench 11 to the fixing part 14 and fix the gear blank. Then the hob 12 is started to process the gear blank, after the gear teeth of the gear blank are processed, the rotating disc 13 is rotated to move the gear to the polishing unit, the polishing gear 53 is meshed with the processed gear through the telescopic arm 51, the processed gear is driven to rotate through the driving gear 52, accordingly, burrs of the gear are removed, the gear teeth are polished, and a gear finished product can be obtained.

At the moment, the grabbing unit is started again to grab the gear, specifically, the mechanical arm 41 is rotated and stretched, so that the grabbing claw 43 is aligned with the gear position output by the grinding unit, and the grabbing claw 43 is adopted to grab the gear; the robot arm 41 is then rotated and extended to place the processed gear on the gear portion of the transfer unit, and the finished gear is transferred to the outside of the machine tool 10 following the transfer of the gear by the transfer portion 21.

When the gear product is conveyed out of the channel 16 along with the conveying part 21, the abutting block 31 on the channel 16 acts on the rotating member 33 to rotate the rotating member 33, so that the lug 43 no longer corresponds to the position of the sensing member 32. The finished gear product is continuously conveyed along with the conveying part 21, when the finished gear product is conveyed to the position of the sensing part 32, the sensing part 32 cannot sense the bump 34, so that the conveying part 21 stops conveying, at the moment, the part of the conveying part 21, which is positioned outside the machine tool 10, is a machined gear before the sensing part 32 conveys, and the finished gear product can be timely taken down, so that the finished gear product is prevented from entering the machine tool 10 again to be machined.

And repeating the gear machining steps to continuously and circularly machine the gear.

The foregoing is merely an example of the present invention and common general knowledge in the art of designing and/or characterizing particular aspects and/or features is not described in any greater detail herein. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several variations and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a gear hobbing machine, includes gear hobbing machine's lathe, workstation and hobbing cutter, be equipped with the fixed part that is used for the fixed gear on the workstation, be equipped with box, its characterized in that around the workstation: the machine tool is characterized by further comprising a conveying unit, a grabbing unit and a polishing unit, wherein a channel is arranged in the machine tool, one section of the conveying unit is located in the channel and located on one side of the workbench, and the conveying unit is provided with a plurality of gear parts for placing gears; the grabbing unit is fixed on the workbench and comprises a mechanical arm and a grabbing part, the mechanical arm can rotate and stretch, and the grabbing part is used for grabbing the gear; the polishing unit is arranged on the workbench and used for polishing the gear.

2. The hobbing machine according to claim 1, wherein the transmission unit includes a horizontal transmission portion on which a plurality of gear portions are disposed at regular intervals; the gear part comprises a base fixed on the transmission part, and a supporting seat for fixing the gear is detachably connected to the base.

3. The gear hobbing machine of claim 2, wherein the base is provided with an axle hole, the support seat is provided with a plurality of specifications, the lower part of the support seat is connected with the axle hole in a clamping manner, and the axle hole is radially provided with a fastening bolt for fastening the lower part of the support seat.

4. The gear hobbing machine according to claim 3, wherein the conveying unit is provided with a detection mechanism for detecting completion of gear machining.

5. The gear hobbing machine according to claim 4, wherein the detection mechanism comprises a rotating member, a sensing member located outside the box body and a supporting block located at the outlet of the channel, the rotating member is rotatably connected with the base, a convex block used for sensing of the sensing member is arranged on the rotating member, and the supporting block can enable the rotating member to rotate.

6. The hobbing machine of claim 5, wherein the base is provided with a support block, the rotating member is rotatably connected with a side portion of the support block, the rotating member is in an L-shaped configuration, and the projection is disposed on a side of the rotating member away from the support base.

7. A gear hobbing machine as claimed in claim 6, characterised in that the sensing and rotating members are both located inside the conveying section.

8. The hobbing machine of claim 7, wherein the gripping portion is provided with a spindle around which a plurality of gripping claws are provided.

9. The gear hobbing machine of claim 8, wherein the table is provided with a rotating disc, the fixed portion is provided on the rotating disc, and the hob and the grinding unit correspond to the rotating disc in position.

10. The gear hobbing machine of claim 9, wherein the grinding unit comprises a drive gear and a grinding gear, the worktable is provided with a telescopic arm connected with the grinding gear, and the drive gear is used for driving the drive gear to rotate.