CN216502791U

CN216502791U - Fixed firm gear hobbing machine for gear production

Info

Publication number: CN216502791U
Application number: CN202122253891.XU
Authority: CN
Inventors: 张勋; 张玲军; 颜勤祥
Original assignee: Jiangsu Zhonggu Axle Co ltd
Current assignee: Jiangsu Zhonggu Axle Co ltd
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2022-05-13
Anticipated expiration: 2031-09-17

Abstract

The utility model discloses a firmly-fixed gear hobbing machine for gear production, which comprises a hobbing cutter, a base, a fixing assembly and a lifting support, wherein two ends of the hobbing cutter are rotationally connected with the base; the fixed component comprises an upper chuck, a top block is fixed at the bottom end of the upper chuck, a sleeve is in threaded connection with the outer wall of the upper chuck, a handle is fixed on the outer wall of the sleeve, and a lower chuck is rotatably connected to the top end of the base. This fixed firm gear hobbing machine for gear production sets up the internal fixation post that can inwards draw close and outwards strut, and the kicking block can strut the internal fixation post, and the internal fixation post is fixed the blank from inside, and the sleeve can rotate downwards, and the chuck presss from both sides tight blank under the cooperation, and further fixed blank makes fixed effect better, and when two kicking blocks were kept away from each other, the internal fixation post was drawn close each other, conveniently takes off the gear for production efficiency.

Description

Fixed firm gear hobbing machine for gear production

Technical Field

The utility model relates to the technical field of gear hobbing machines, in particular to a gear hobbing machine for producing a gear, which is firm in fixation.

Background

The gear is the common part of various mechanical devices, gear hobbing machines need to be used in the production gear, and gear hobbing machines in market mainly comprise fixed establishment and hobbing cutter, and during the gear hobbing, fixed establishment presss from both sides tight blank to it is rotatory to drive the blank, and hobbing cutter cutting blank edge forms a part tooth of gear, along with the continuous rotation of blank, constantly processes more teeth, until processing out whole tooth, accomplishes the gear hobbing process of gear.

When a gear hobbing machine on the current market machines a gear, a blank is not easy to fix well.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a gear hobbing machine for producing a gear, which is firmly fixed, so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a gear hobbing machine for producing a firmly fixed gear comprises a hobbing cutter, a base, a fixing assembly and a lifting support, wherein two ends of the hobbing cutter are rotatably connected with the base;

the fixed assembly comprises an upper chuck, a top block is fixed at the bottom end of the upper chuck, a sleeve is in threaded connection with the outer wall of the upper chuck, a handle is fixed on the outer wall of the sleeve, a lower chuck is rotatably connected to the top end of the base, a fixed rod is fixedly connected to the lower chuck through the top block, a straight cylinder is sleeved on the outer wall of the fixed rod, a limiting strip is fixed on the outer wall of the straight cylinder, an inner fixed column is slidably connected to the outer wall of the limiting strip, a permanent magnet is fixedly connected to the inner fixed column, and a spring is fixedly connected between the inner fixed columns.

Preferably, the two ejector blocks are conical and are respectively arranged at the centers of the upper chuck and the lower chuck, the central lines of the two ejector blocks are overlapped, when the two ejector blocks are close to and clamped with each other, the inner fixing column can be propped open from the upper end and the lower end, the propping distance is linearly related to the approaching distance of the ejector blocks, and the propping process of the inner fixing column is more uniform.

Preferably, the fixed rod is located above the center of the top block, the height of the fixed rod is smaller than the minimum gap between the two top blocks, the fixed rod can enable the inner fixing column to keep vertical, and when the two top blocks prop open the inner fixing column, the top block at the upper end cannot contact the fixed rod, so that the propping process is smoothly carried out.

Preferably, the number of the row limiting strips is three, the central lines of the row limiting strips are distributed in the middle of the outer wall of the straight cylinder at equal angles, and the cross section of each row limiting strip is square, so that the inner fixing column can only slide along the direction of the row limiting strips and cannot rotate.

Preferably, the inner fixing columns are three in the same shape, are in sliding connection with the limiting strips through sliding chutes with square inner sections, can automatically draw close inwards, and can also be propped open along with the approach of the jacking blocks to fix blanks from the inside.

Preferably, the permanent magnet has three, is located the inside of three internal fixation posts respectively, can further strengthen the fixed effect between fixed post and the blank.

Preferably, the number of the springs is three, each spring is connected with the center of the adjacent surface between the inner fixing columns, and when the three inner fixing columns are tightly attached to each other, the springs can be contracted into the grooves on the adjacent surfaces of the inner fixing columns, and when the processed gear is taken out, the springs can drive the inner fixing columns to be automatically contracted, so that the gear is convenient to take down.

Compared with the prior art, the utility model has the beneficial effects that:

(1) this fixed firm gear hobbing machine for gear production sets up the internal fixation post that can inwards draw close and outwards strut, can strut the internal fixation post when two kicking blocks are close to each other, and internal fixation post is fixed the blank from inside, and the sleeve can rotate downwards simultaneously, and the upper and lower terminal surface of chuck clamp blank under the cooperation, further fixed blank reduces the removal and the rotation of blank in the course of working, makes fixed effect better, and the finished product yield is higher.

(2) This fixed firm gear hobbing machine for gear production, after processing is accomplished, two kicking blocks are kept away from each other, and under the effect of spring, the internal fixation post draws close each other, no longer from inside fixed gear, conveniently takes off the gear that processing was accomplished for production efficiency.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an elevation view of the fixing assembly of the present invention;

FIG. 3 is a top view of the present invention with the internal fixation posts in a closed position;

fig. 4 is a top view of the internal fixation post of the present invention in an expanded state.

In the figure: 1. hobbing cutters; 2. a base; 3. a fixing assembly; 301. an upper chuck; 302. a top block; 303. a sleeve; 304. a handle; 305. a lower chuck; 306. fixing the rod; 307. a straight cylinder; 308. a row limiting bar; 309. an inner fixing column; 310. a permanent magnet; 311. a spring; 4. a lifting support.

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. 1-4, the present invention provides a technical solution: the utility model provides a fixed firm gear hobbing machine for gear production, includes hobbing cutter 1, base 2, fixed subassembly 3 and lifting support 4, and hobbing cutter 1's both ends are rotated with base 2 and are connected, and hobbing cutter 1 can be controlled by electrical system, moves on base 2, and fixed subassembly 3's bottom and base 2 fixed connection, lifting support 4's outer wall and 2 sliding connection of base, and lifting support 4 is controlled by electrical system, can drive chuck 301 and reciprocate.

The fixing component 3 comprises an upper chuck 301, the upper chuck 301 can be controlled by electricity to rotate, so as to drive the sleeve 303 and the blank to rotate, gear processing is completed, the upper chuck 301 can drive the ejector blocks 302 to approach each other, the bottom end of the upper chuck 301 is fixed with the ejector blocks 302, the two ejector blocks 302 are conical and are respectively arranged at the centers of the upper chuck 301 and the lower chuck 305, the central lines of the two ejector blocks 302 are overlapped, when the two ejector blocks 302 approach each other, the upper end and the lower end of the inner fixing column 309 can be opened, so that the three inner fixing columns 309 are far away from each other, the outer wall of the upper chuck 301 is in threaded connection with the sleeve 303, the sleeve 303 can move up and down along with the outer wall of the upper chuck 301, the upper end face and the lower end face of the blank can be clamped by matching with the lower chuck 305, so that the blank is more firmly fixed, the outer wall of the sleeve 303 is fixed with a handle 304, the handle 304 can prolong the arm of force, and the sleeve 303 is more forcefully matched with the lower chuck 305 to clamp the blank, the fixing effect is better, the top end of the base 2 is rotatably connected with a lower chuck 305, the lower chuck 305 can be matched with the sleeve 303 to clamp the upper end and the lower end of a blank to further fix the blank, the fixing effect is better, the lower chuck 305 can be electrically controlled to rotate to drive the blank to rotate to complete gear machining, the lower chuck 305 is fixedly connected with a fixing rod 306 through a top block 302, the fixing rod 306 is positioned above the center of the top block 302 and is lower than the minimum gap between the two top blocks 302, and when the distance between the two top blocks 302 is minimum, the top block 302 at the upper end still cannot contact with the fixing rod 306, so that the inner fixing column 309 can be smoothly closed or opened, the structure is more reasonable, the straight cylinder 307, the travel limiting strip 308 and the inner fixing column 309 can be kept vertical all the time, the fixing effect of the inner fixing column 309 on the blank is better, the straight cylinder 307 is sleeved on the outer wall of the fixing rod 306, and the height of the straight cylinder 307 is smaller than the fixing rod 306, the inner fixing columns 309 can be kept vertical, the outer wall of the straight barrel 307 is fixed with the row limiting strips 308, the number of the row limiting strips 308 is three, center lines are distributed in the middle of the outer wall of the straight barrel 307 at equal angles, the cross section of each row limiting strip 308 is square, each inner fixing column 309 can only slide along the direction of the row limiting strip 308 and cannot rotate, the sliding state of each inner fixing column 309 can be always controlled, blanks can be better fixed from the inside, the outer wall of each row limiting strip 308 is fixedly connected with the inner fixing column 309, the inner fixing columns 309 are three with the same shape and are in sliding connection with the row limiting strips 308 through sliding grooves with square inner cross sections, the inner fixing columns 309 can be controlled by the top block 302 and can be mutually closed or opened, the circumference is small when the inner fixing columns are mutually closed and smaller than the diameter of a through hole in the gear, the processed gear is convenient to take off, the circumference is enlarged when the blank is opened, the blank is tightly attached to the blanks from the inside, the blank moving and rotating are less during processing, the permanent magnets 310 are fixed inside the inner fixing columns 309, three permanent magnets 310 are arranged inside the three inner fixing columns 309 respectively, the fixing effect of the inner fixing columns 309 on the blank can be further enhanced, the springs 311 are fixedly connected between the inner fixing columns 309, the number of the springs 311 is three, each spring 311 is connected with the center of the adjacent surface between the inner fixing columns 309, when the three inner fixing columns 309 are tightly attached to each other, the springs 311 contract into the grooves on the adjacent surface of the inner fixing columns 309, when the inner fixing columns 309 are propped open by the top block 302, the springs 311 are stretched, when the top block 302 is far away, the springs 311 contract to drive the inner fixing columns 309 to mutually approach each other, the fixing is released, and the processed gear can be conveniently taken out.

When the device is used, a through hole in the center of a blank penetrates through the inner fixing columns 309, a switch is started, the electrically controlled upper chuck 301 moves downwards to drive the ejector blocks 302 to approach each other, the two ejector blocks 302 prop the upper and lower ends of the inner three inner fixing columns 309 open, the spring 311 stretches, the three inner fixing columns 309 slide along the limiting strips 308, the circumference is increased and tightly attached to the inner wall of the through hole in the center of the blank, the blank is fixed, the handle 304 is rotated, the handle 304 drives the sleeve 303 to rotate, the sleeve 303 moves downwards under the action of inner wall threads until the sleeve 303 and the lower chuck 305 clamp the upper and lower end faces of the blank, one part fixes the blank, the switch is started, the lower chuck 305, the upper chuck 301 and the sleeve 303 drive the blank to rotate, meanwhile, the hob 1 is electrically rotated to machine teeth on the edge of the blank until the gear hobbing procedure is completed completely, the electrically controlled upper chuck 301 moves upwards, the ejector blocks 302 move away from each other, and the spring 311 contracts, the three inner fixing columns 309 are driven to approach each other, the three inner fixing columns 309 slide along the three limiting strips 308 to approach each other until the inner fixing columns 309 are attached to each other, the processed gear can be taken down, a new blank is put on the gear, when the size of the gear is not changed, the sleeve 303 does not need to be adjusted, and the subsequent blank hobbing procedure can be continuously completed.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.

Claims

1. The utility model provides a fixed firm gear hobbing machine for gear production, includes hobbing cutter (1), base (2), fixed subassembly (3) and lifting support (4), its characterized in that: the two ends of the hob (1) are rotatably connected with the base (2), the bottom end of the fixing component (3) is rotatably connected with the base (2), and the outer wall of the lifting support (4) is slidably connected with the base (2);

the fixing assembly (3) comprises an upper clamping head (301), a top block (302) is fixed at the bottom end of the upper clamping head (301), a sleeve (303) is connected to the outer wall of the upper clamping head (301) in a threaded manner, a handle (304) is fixed to the outer wall of the sleeve (303), a lower clamping head (305) is connected to the top end of the base (2) in a rotating manner, a fixing rod (306) is fixedly connected to the lower clamping head (305) through the top block (302), a straight cylinder (307) is sleeved on the outer wall of the fixing rod (306), a limited row bar (308) is fixed to the outer wall of the straight cylinder (307), an inner fixing column (309) is connected to the outer wall of the limited row bar (308) in a sliding manner, a permanent magnet (310) is fixedly connected to the inner fixing column (309), and a spring (311) is fixedly connected between the inner fixing columns (309).

2. The hobbing machine for producing firmly-fixed gear according to claim 1, characterized in that: the two top blocks (302) are conical and are respectively arranged at the centers of the upper chuck (301) and the lower chuck (305), and the central lines of the two top blocks (302) are overlapped.

3. The hobbing machine for producing firmly-fixed gear according to claim 1, characterized in that: the fixing rod (306) is positioned above the center of the top blocks (302), and the height of the fixing rod is smaller than the minimum gap between the two top blocks (302).

4. The hobbing machine for producing firmly-fixed gear according to claim 1, characterized in that: the number of the row limiting strips (308) is three, the central lines are distributed in the middle of the outer wall of the straight cylinder (307) at equal angles, and the section of each row limiting strip (308) is square.

5. The hobbing machine for producing firmly-fixed gear according to claim 1, characterized in that: the inner fixing columns (309) are three with the same shape and are in sliding connection with the limiting strips (308) through sliding chutes with square inner sections.

6. The hobbing machine for producing firmly-fixed gear according to claim 1, characterized in that: the permanent magnet (310) is provided with three permanent magnets which are respectively positioned inside the three inner fixing columns (309).

7. The hobbing machine for producing firmly-fixed gear according to claim 1, characterized in that: the number of the springs (311) is three, each spring (311) is connected with the center of the adjacent surface between the inner fixing columns (309), and when the three inner fixing columns (309) are tightly attached to each other, the springs (311) shrink into the grooves on the adjacent surfaces of the inner fixing columns (309).