CN202137450U - Internal helical gear dual-drive broaching device - Google Patents

Abstract

An internal helical gear dual-drive broaching device includes a machine tool; a workpiece bearing support is fixed in a middle section position of the machine tool; a left bearing support is disposed on a left side of the workpiece bearing support; a right bearing support is disposed on a right side of the workpiece bearing support; the left bearing support and the right bearing support are slidably disposed on the machine tool; a through hole is provided in the workpiece bearing support; a helical guide pillar and a broaching tool are disposed between the left bearing support and the right bearing support; the helical guide pillar is drivingly threaded to the workpiece bearing support; the broaching tool passes through the through hole; and the helical guide pillar drives the broaching tool to rotate by means of gears. The internal helical gear dual-drive broaching device of a reasonable configuration can effectively overcome a problem of broaching of an internal helical gear or a spiral spline on a conventional broaching machine; the broaching tool performs rectilinear movement followed by rotary motion under the action of two gears disposed fore and after; and the gears enable stable and reliable transmission and greater driving torque and prevent the broaching tool with a small diameter from being twisted off. The internal helical gear dual-drive broaching device has low cost, maintenance simplification, long service life, good broaching effect and high popularization and use values.

Description

Double drive broaching device for internal helical teeth

technical field

The utility model relates to the field of mechanical processing equipment for broaching spiral internal gears and spiral splines, and is a double-drive broaching device for processing spiral internal gears and spiral splines.

Background technique

Compared with spur gears and ordinary splines, helical internal gears and helical splines have the advantages of large transmission torque and stable transmission, and are now widely used in automobile transmissions. The processing of helical internal gears and helical splines is a difficult broaching process, which cannot be broached directly on ordinary broaching machines in the market, and the price of CNC broaching machines is very expensive. Generally, small and medium-sized enterprises purchase funds and return on investment limit. Therefore, there is an urgent need for an internal helical tooth double-drive broaching device with low cost, good broaching effect and long service life.

Contents of the invention

The utility model aims to solve the above-mentioned shortcomings of the prior art, and provides a double-drive broaching device for internal helical teeth with low cost, good broaching effect and long service life to meet production requirements.

The technical scheme adopted by the utility model to solve the technical problems: the double-drive broaching device for internal helical teeth includes a machine tool, a workpiece support seat is fixed in the middle of the machine tool, a left support seat is provided on the left side of the workpiece support seat, and a right support seat is provided on the right side of the workpiece support seat. There is a right support seat on the side, the left support seat and the right support seat are both slidably set on the machine tool, a through hole is provided on the workpiece support seat, and a spiral guide column, a broach, and a spiral guide The column drive is screwed on the workpiece supporting seat, and the broach is set in the through hole; the spiral guide column drives the broach to rotate through the gear. In this way, the helical guide column makes the broach rotate while moving linearly through the gear transmission, which can make the broaching more stable and reliable, transmit torque larger and effectively prevent the possibility of the small diameter broach being twisted off. Significantly improve the service life of the equipment, thereby reducing costs; the spiral guide column can be made of high-strength materials, and the use effect will be better.

Further, one side of the left support base is provided with a screw guide column chuck and a broach chuck, one end of the spiral guide post is clamped in the screw guide column clamp, and one end of the broach is clamped in the broach chuck. In this way, the screw guide column and the broach are clamped by the screw guide column chuck and the broach chuck, which can facilitate tool retraction and clamp the workpiece to be processed, and can obviously improve work efficiency during use.

Furthermore, the gears include a front gear and a rear gear; there are two front gears and two rear gears, the front gears are respectively fixed on the screw guide column chuck and the broach chuck, and the rear gears are respectively fixed on the screw guide column and the broach chuck. another side. In this way, through the use of two pairs of transmission gears, the transmission can be made stable and reliable, and the transmission torque is larger, effectively preventing the broach with a smaller diameter from being twisted, and expanding the range of the processing size of the equipment.

There is a top on the right support base, and the end of the spiral guide post and the end of the broach are both supported by the top, which can improve the rigidity and working stability of the spiral guide post and the broach, and improve the machining accuracy.

The beneficial effects of the utility model are: the utility model has a reasonable and compact structure, and can effectively solve the problem of broaching the helical internal gear or the helical spline on the ordinary broaching machine through the rational arrangement of the helical guide column, the broach and the front and rear gears The utility model adopts two pairs of gears at the front and back to make the broach rotate while moving in a straight line. The two pairs of gears can make the transmission stable and reliable, make the transmission torque larger and can effectively prevent the broach with a smaller diameter from being twisted. The utility model has the advantages of low cost, easy maintenance, high service life and good broaching effect, and is worthy of popularization and application.

Description of drawings

Fig. 1 is a structural schematic diagram of the utility model when it is sectioned.

Explanation of reference signs: machine tool 1, workpiece support seat 2, left support seat 3, right support seat 4, through hole 5, spiral guide post 6, broach 7, gear 8, front gear 8-1, rear gear 8-2 , Spiral guide column chuck 9, broach chuck 10, top 11, workpiece 12.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described:

With reference to accompanying drawing: this internal helical gear double-drive broaching device in the present embodiment comprises machine tool 1, and the middle position of machine tool 1 is fixed with workpiece support seat 2, and the left side of workpiece support seat 2 is provided with left support seat 3, and left support One side of the seat 3 is provided with a spiral guide column chuck 9 and a broach chuck 10; the right side of the workpiece support seat 2 is provided with a right support seat 4, and the right support seat 4 is provided with a top 11, the left support seat 3, and the right support seat 4 are all slidably arranged on the machine tool 1, a through hole 5 is provided on the workpiece support seat 2, a spiral guide post 6 and a broach 7 are provided between the left support seat 3 and the right support seat 4, and one end of the spiral guide post 6 is clamped on the In the screw guide column chuck 9, one end of the broach 7 is clamped in the broach chuck 10; the screw guide column 6 is driven and screwed on the workpiece support seat 4, and the broach 7 is penetrated in the through hole 5; the screw guide column The end of 6 and the end of broach 7 are both supported by the top 11; the spiral guide post 6 drives the broach 7 to rotate through the gear 8; the gear 8 includes a front gear 8-1 and a rear gear 8-2; the front gear 8-1 There are two rear gears 8-2, the front gear 8 is respectively fixed on the screw guide column chuck 9 and the broach chuck 10, and the rear gear 8-2 is respectively fixed on the other end of the spiral guide column 6 and the broach 7 .

When the utility model is in use, the workpiece 12 to be processed is clamped on the outer end of the through hole 5 on the workpiece support seat 2, and the broach 7 of the corresponding specification and the spiral guide column 6 matched with the broach 7 are selected according to the processing needs, and installed At the same time, the feed end of the broach 7 passes through the workpiece 12 and is docked and fixed with the broach chuck 10, and the spiral guide post 6 is docked and fixed with the screw guide post chuck 9 at the same time; Rotate, when spiral guide column 6 rotates, can drive broach 7 to rotate by front gear 8-1, rear gear 8-2, the lead of spiral guide column 6 is identical with the spiral internal gear lead of processed workpiece 12 like this, and The direction of rotation is opposite, and during work, the turning of the broach 7 is also opposite to that of the helical guide post 6. Two pairs of gears can make the transmission more stable and reliable, the transmission torque is larger and can effectively prevent the broach 7 with a smaller diameter from being twisted off. The utility model has good use effect, long service life and low cost, and is worth popularizing.

Although the present invention has been illustrated and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made within the scope of the claims.

Claims (4)

1. two broachers that drive of an inside spin tooth; Comprise lathe (1); Said lathe (1) middle section position is fixed with work mounting s seat (2); Said work mounting s seat (2) left side is provided with left supporting seat (3), and work mounting s seat (2) right side is provided with right supporting seat (4), and said left supporting seat (3), right supporting seat (4) all slide and be arranged on the lathe (1); It is characterized in that: said work mounting s seat (2) is provided with through hole (5); Be provided with spiral guide pillar (6), broaching tool (7) between said left supporting seat (3) and the right supporting seat (4), said spiral guide pillar (6) transmission is bolted on the work mounting s seat (4), and said broaching tool (7) is arranged in the through hole (5); Said spiral guide pillar (6) drives broaching tool (7) through gear (8) and rotates.

2. the two broachers that drive of inside spin tooth according to claim 1; It is characterized in that: said left supporting seat (3) one sides are provided with spiral guide pillar chuck (9), pulling chuck (10); Said spiral guide pillar (6) one ends are arranged in the spiral guide pillar chuck (9), and said broaching tool (7) one ends are arranged in the pulling chuck (10).

3. the two broachers that drive of inside spin tooth according to claim 2, it is characterized in that: said gear (8) comprises front gear (8-1), backgear (8-2); Said front gear (8-1), backgear (8-2) all have two; Said front gear (8) is individually fixed on spiral guide pillar chuck (9), the pulling chuck (10), and said backgear (8-2) is individually fixed in the other end of spiral guide pillar (6), broaching tool (7).

4. the two broachers that drive of inside spin tooth according to claim 2, it is characterized in that: said right supporting seat (4) is provided with top (11), and the end of the end of said spiral guide pillar (6) and broaching tool (7) is all supported through top (11).

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