CN212793415U

CN212793415U - Cutter quick replacement device of horizontal gear hobbing machine

Info

Publication number: CN212793415U
Application number: CN202021023166.2U
Authority: CN
Inventors: 褚国荣
Original assignee: Jiangsu Songtian Cnc Technology Co ltd
Current assignee: Jiangsu Songtian Cnc Technology Co ltd
Priority date: 2020-06-07
Filing date: 2020-06-07
Publication date: 2021-03-26
Anticipated expiration: 2030-06-07

Abstract

The utility model discloses a cutter quick replacement device of horizontal gear hobbing machine, including frame and gear hobbing cutter, be provided with the linking arm on the inside wall of frame, the shoulder hole has been seted up on the lateral wall of linking arm, the inside of shoulder hole is connected with the limiting plate through the telescopic link, be provided with the stopper on the lateral wall of limiting plate. The utility model discloses in, when carrying out the hobbing cutter and changing, driving motor's output shaft drives the master gear and rotates, the master gear drives pinion and a screw thread section of thick bamboo and rotates, the rotation of a screw thread section of thick bamboo drives the bending pin and removes, make its tip and lockhole break away from, remove the locking to the fixed column, then apply a thrust to one of them one end of pressing the hobbing cutter, the one end of fixed column removes to the inside of shoulder hole, the other end of fixed column removes to the outside of shoulder hole, thereby make the other end of fixed column break away from the block of shoulder hole, thereby realize the quick replacement of hobbing cutter, the efficiency of the cutter change of the horizontal hobbing machine of kind is improved.

Description

Cutter quick replacement device of horizontal gear hobbing machine

Technical Field

The utility model relates to a gear hobbing machine technical field especially relates to a cutter quick replacement device of horizontal gear hobbing machine.

Background

The hobbing machine is one of the most widely used gear cutting machines, and can cut straight teeth, helical cylindrical gears, worm gears, chain wheels, etc.

For example, the existing horizontal hobbing machine tool is usually fixed by bolts, and needs to be disassembled by using a designated tool when the tool is replaced, so that the disassembly process is very laborious, and the tool replacement efficiency of the horizontal hobbing machine tool is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the utility model provides a cutter quick replacement device of horizontal gear hobbing machine for solve the problem that the cutter replacement efficiency of horizontal gear hobbing machine is low.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a cutter quick replacement device of a horizontal gear hobbing machine comprises a rack and a gear hobbing cutter, wherein a connecting arm is arranged on the inner side wall of the rack, a stepped hole is formed in the side wall of the connecting arm, the inside of the stepped hole is connected with a limiting plate through a telescopic rod, a limiting block is arranged on the side wall of the limiting plate, a spring is sleeved outside the telescopic rod, bending pins penetrating through the stepped hole are connected to the front surface wall and the rear surface wall of the connecting arm, a threaded section is arranged at the end part of each of the two bending pins, a threaded barrel is connected to the outside of the threaded section in a screwing mode, a secondary gear is sleeved outside the threaded barrel, a groove is formed in the upper end face of the connecting arm, a driving motor is arranged inside the groove, a main gear is sleeved on an output shaft of the driving motor, fixed columns are connected to the two, and the front end surface and the rear end surface of the fixed column are provided with lock holes at positions corresponding to the bending pins.

As a further description of the above technical solution:

the main gear is connected with the auxiliary gear in a screwing mode.

As a further description of the above technical solution:

the limiting blocks and the limiting grooves are of square structures, and the limiting blocks are connected with the limiting grooves in a clamping mode.

As a further description of the above technical solution:

the fixing column and the stepped hole are both of square structures and are connected in a clamping mode.

As a further description of the above technical solution:

the bending pin penetrates through the connecting arm and is in sliding fit with the connecting arm, and the end part of the bending pin is in inserting fit with the lock hole.

As a further description of the above technical solution:

the thread sections on the bending pins are opposite in screwing direction.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, through a screw thread section of thick bamboo, the bending pin, the setting of fixed post, when carrying out the hobbing cutter and changing, driving motor's output shaft drives the master gear and rotates, the master gear drives pinion and a screw thread section of thick bamboo and rotates, the rotation of a screw thread section of thick bamboo drives the bending pin and removes, make its tip and lockhole break away from, remove the locking to the fixed column, then apply a thrust to the wherein one end of pressing the hobbing cutter, the one end of fixed column removes to the inside of shoulder hole, the other end of fixed column removes to the outside of shoulder hole, thereby make the other end of fixed column break away from the block of shoulder hole, thereby realize the quick replacement of hobbing cutter, the efficiency of the cutter change of the horizontal hobbing machine is improved.

2. The utility model discloses in, through the setting of stopper, spacing groove, fixed column and shoulder hole, the fixed column has realized the primary of hobbing cutter through the fixed column with the block of shoulder hole, and the block of stopper and spacing groove is connected simultaneously and is realized that the secondary is spacing to the hobbing cutter through the fixed column, and the setting of square structure can prevent that the fixed column from taking place the axial and rotating, and the tip of bending pin is died through the fixed column to the hobbing cutter through the cooperation of pegging graft of lockhole, has improved the fixed firm stability of horizontal hobbing cutter.

Drawings

Fig. 1 is a schematic front view of a tool quick changing device of a horizontal hobbing machine according to an embodiment of the present invention;

fig. 2 is an enlarged schematic structural view of a part a of a tool quick changing device of a horizontal hobbing machine according to an embodiment of the present invention;

fig. 3 is a schematic view illustrating a connecting structure of a fixing column and a bending pin of a tool quick changing device of a horizontal hobbing machine according to an embodiment of the present invention;

fig. 4 is a schematic cross-sectional view of a screw barrel of a tool quick changing device of a horizontal hobbing machine according to an embodiment of the present invention;

illustration of the drawings:

1. a frame; 2. a hobbing cutter; 3. a connecting arm; 301. a stepped hole; 302. a groove; 4. fixing a column; 401. a limiting groove; 402. a lock hole; 5. a telescopic rod; 6. a spring; 7. a limiting plate; 701. a limiting block; 8. a bending pin; 801. a threaded segment; 9. a threaded barrel; 10. a pinion gear; 11. a drive motor; 12. a main gear.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a cutter quick replacement device of a horizontal gear hobbing machine comprises a machine frame 1 and a gear hobbing cutter 2, wherein a connecting arm 3 is arranged on the inner side wall of the machine frame 1, a step hole 301 is formed in the side wall of the connecting arm 3, the inside of the step hole 301 is connected with a limiting plate 7 through a telescopic rod 5, a limiting block 701 is arranged on the side wall of the limiting plate 7, a spring 6 is sleeved outside the telescopic rod 5, bending pins 8 penetrating through the step hole 301 are connected to the front surface wall and the rear surface wall of the connecting arm 3, thread sections 801 are arranged at the end parts of the two bending pins 8, a thread barrel 9 is screwed outside the thread sections 801, a pinion 10 is sleeved outside the thread barrel 9, a groove 302 is formed in the upper end face of the connecting arm 3, a driving motor 11 is convenient to mount, a driving motor 11 is arranged inside the groove 302, a main gear 12 is sleeved on an output shaft of the driving motor 11 to provide driving, in the process of rotating the hobbing cutter 2, the fixing column 4 does not rotate, the side wall of the fixing column 4 is provided with a limiting groove 401, and the front end face and the rear end face of the fixing column 4 correspond to the bending pin 8 to form a lock hole 402.

Specifically, as shown in fig. 2, the main gear 12 is rotatably connected to the sub-gear 10, such that the rotation of the main gear 12 drives the sub-gear 10 to rotate.

Specifically, as shown in fig. 3, stopper 701 and spacing groove 401 are square structures, stopper 701 is connected with spacing groove 401 block, fixed column 4 is square structure with shoulder hole 301, fixed column 4 is connected with shoulder hole 301 block, fixed column 4 has realized the primary fixation of hobbing cutter 2 through fixed column 4 with the block of shoulder hole 301, stopper 701 and spacing groove 401's block is connected and is realized the secondary spacing through fixed column 4 to hobbing cutter 2 simultaneously, the setting of square structure can prevent that fixed column 4 from taking place the axial rotation.

Specifically, as shown in fig. 3, the bending pin 8 penetrates through the connecting arm 3 and is in sliding fit with the connecting arm, and the end of the bending pin 8 is in insertion fit with the locking hole 402 to lock the fixing post 4 inside the stepped hole 301.

Specifically, as shown in fig. 4, the thread segments 801 on the two bending pins 8 are rotated in opposite directions, so that the two bending pins 8 simultaneously move in opposite directions.

The working principle is as follows: when the hobbing cutter 2 is replaced, the driving motor 11 is started, the output shaft of the driving motor 11 drives the main gear 12 to rotate, the rotation of the main gear 12 drives the pinion 10 to rotate, the rotation of the pinion 10 drives the thread cylinder 9 to rotate, the rotation of the thread cylinder 9 drives the bending pins 8 to simultaneously move towards two sides through the screwing of the thread sections 801, the end parts of the bending pins 8 are separated from the lock holes 402 through the movement of the bending pins 8, the locking of the fixed columns 4 is released, then, a pushing force is applied to one end of the rolling cutter 2, one end of the fixed column 4 moves to the inside of the stepped hole 301, the limiting plate 7 is extruded by the limiting block 701, the spring 6 and the telescopic rod 5 are compressed at the same time, the other end of the fixed column 4 moves to the outside of the stepped hole 301, therefore, the other end of the fixing column 4 is separated from the clamping of the stepped hole 301, so that the hobbing cutter 2 is quickly replaced, and the cutter replacing efficiency of the horizontal hobbing machine is improved; the primary fixation of the hobbing cutter 2 is realized through the fixed column 4 by the fixed column 4 and the clamping of the stepped hole 301, meanwhile, the secondary limitation of the hobbing cutter 2 is realized through the fixed column 4 by the clamping connection of the limiting block 701 and the limiting groove 401, the fixed column 4 can be prevented from axially rotating due to the arrangement of the square structure, the end part of the bending pin 8 is in plugging fit with the lock hole 402 to lock the hobbing cutter 2 through the fixed column 4, and the fixation stability of the horizontal hobbing cutter is improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a cutter quick replacement device of horizontal gear hobbing machine, includes frame (1) and gear hobbing cutter (2), its characterized in that, be provided with linking arm (3) on the inside wall of frame (1), shoulder hole (301) have been seted up on the lateral wall of linking arm (3), the inside of shoulder hole (301) is connected with limiting plate (7) through telescopic link (5), be provided with stopper (701) on the lateral wall of limiting plate (7), the outside cover of telescopic link (5) is equipped with spring (6), table wall is connected with bending pin (8) that run through shoulder hole (301) around linking arm (3), two bending pin (8)'s tip all is provided with screw thread section (801), the outside of screw thread section (801) closes soon and is connected with screw thread section (9), the outside cover of screw thread section (9) is equipped with pinion (10), the up end of linking arm (3) is seted up flutedly (302), the gear hobbing cutter is characterized in that a driving motor (11) is arranged inside the groove (302), a main gear (12) is sleeved on an output shaft of the driving motor (11), two ends of the hobbing cutter (2) are connected with fixing columns (4) through bearings, limiting grooves (401) are formed in the side walls of the fixing columns (4), and locking holes (402) are formed in the positions, corresponding to the bending pins (8), of the front end face and the rear end face of each fixing column (4).

2. The device for the rapid tool change in horizontal hobbing machines according to claim 1, characterized in that the primary gear (12) is screwed to the secondary gear (10).

3. The quick cutter replacing device for the horizontal hobbing machine according to claim 1, characterized in that the limiting block (701) and the limiting groove (401) are both square structures, and the limiting block (701) is connected with the limiting groove (401) in a clamping manner.

4. The quick tool replacing device for the horizontal hobbing machine according to claim 1, characterized in that the fixing column (4) and the stepped hole (301) are both square structures, and the fixing column (4) is connected with the stepped hole (301) in a clamping manner.

5. The quick tool change device of a horizontal hobbing machine according to claim 1, characterized in that the bending pin (8) penetrates the connecting arm (3) and is in sliding fit with it, and the end of the bending pin (8) is in plug fit with the locking hole (402).

6. The tool quick-change device of a horizontal hobbing machine according to claim 1, characterized in that the thread segments (801) on the two bending pins (8) are oppositely threaded.