CN102528527A

CN102528527A - Continuous broaching structure of broaching machine

Info

Publication number: CN102528527A
Application number: CN2012100140332A
Authority: CN
Inventors: 田立辉; 王永利; 李勇
Original assignee: LIHUI MACHINE Ltd
Current assignee: LIHUI MACHINE Ltd
Priority date: 2012-01-17
Filing date: 2012-01-17
Publication date: 2012-07-04
Anticipated expiration: 2032-01-17
Also published as: CN102528527B

Abstract

The invention discloses a continuous broaching structure of a broaching machine, which comprises a slide carriage for taking the linear reciprocating motion, a broach for broaching a workpiece, a moving sliding block and a feeding device, wherein a fixed seat is arranged on the slide carriage; the surface of the fixed seat, which is back to the slide carriage, is provided with an inclined guide rail; an included angle is formed between the extension direction of the inclined guide rail and the moving direction of the slide carriage; the moving sliding block is in fit with the inclined guide rail and can slide along the inclined guide rail; the feeding device is used for controlling the moving sliding block; and the broach is fixed at the end part of the moving sliding block. The continuous broaching structure of the broaching machine is suitable for carrying out processing and broaching on a key slot of the workpiece with a large size, not only has novel structure and is rapid and convenient to regulate, but also can be used for implementing continuous broaching and greatly reducing the labor capacity of workers.

Description

A kind of continuous broaching structure of broaching machine

Technical field

The present invention relates to the broaching machine technical field, relate in particular to a kind of continuous broaching structure of broaching machine.

Background technology

Broaching machine is a kind of lathe that the inside and outside Surface Machining of workpiece is shaped that utilizes broaching tool to move back and forth to accomplish, and usually is used to process eyelet or keyway etc., utilizes broaching machine processing can obtain high dimension precision and less surface roughness usually; Adding man-hour, general workpiece is fixed, and broaching tool is done straight reciprocating motion and accomplished processing under the drive of transmission device; This processing mode is very suitable for the less workpiece of size, and not only the product precision is high, and production efficiency is high; Be applicable to production in enormous quantities, but when the keyway of some large-size workpiece of processing, because the keyway degree of depth is bigger; Thickness of workpiece is also bigger, in order not damage broaching tool, repeatedly can machine just often need broaching tool to move back and forth; And every broaching is intact once just need adjust the position manual work of broaching tool; So that broach next time, will reduce the operating efficiency of broaching machine so greatly, influence manufacturing schedule.

Summary of the invention

Technical problem to be solved by this invention is: a kind of continuous broaching structure of broaching machine is provided, and this structure can realize the auto-feed function of broaching tool when the keyway of machining large-sized workpiece, improve working (machining) efficiency effectively.

For solving the problems of the technologies described above; Technical scheme of the present invention is: a kind of continuous broaching structure of broaching machine; The slide carriage and the broaching tool that is used for workpiece is broached that comprise straight reciprocating motion; Said slide carriage is provided with holder, and the one side back to said slide carriage on the said holder is provided with surface rail, is provided with an angle between the bearing of trend of said surface rail and the direction of motion of said slide carriage; Also comprise suitable and can be with said surface rail along the moving slider of its slip, and the feed arrangement that is used to control said moving slider, said broaching tool is fixed in the end of said moving slider.

As a preferred implementation, said feed arrangement comprises the feeding top board that is fixed on the said moving slider, also comprises the leading screw that laterally arranges with the said slide carriage direction of motion, is arranged with feed screw nut on the said leading screw; Have on the said feeding top board and supply nut chute that said feed screw nut moves and the leading screw chute that supplies said leading screw to move, said leading screw is driven by servomotor.

As a preferred implementation, said surface rail removably is fixed on the said holder, and its cross section is the dovetail groove shape.

After having adopted technique scheme, the invention has the beneficial effects as follows: when the keyway of machining large-sized workpiece, whole broaching structure is placed in the through hole of workpiece; Adjust the position of broaching tool, accomplish once broaching through the reciprocating motion of slide carriage, when waiting slide carriage to get back to initial position once more workpiece;, make broaching tool on the broaching direction, realize feeding automatically, and then under the drive of slide carriage, accomplish next time and broach along the surface rail segment distance that moves through feed arrangement control moving slider; Just serially the keyway of large-size workpiece is accomplished processing so repeatedly; In this process, need not manual work the position of broaching tool is adjusted, accomplish by feed arrangement fully; Greatly improve working (machining) efficiency, alleviated workman's the amount of labour.

When once broaching completion, when slide carriage is got back to initial position, the startup servomotor makes the leading screw rotation; Be sheathed on feed screw nut on the leading screw just along guide screw movement, thereby promote the feeding top board and moving slider moves, under the cooperation of surface rail and moving slider; Can make broaching tool on the broaching direction, realize feeding; In this process, nut chute and the leading screw chute can be feed screw nut and leading screw provides mobile space prevents moving slider produced and hinders.

Because the cross section of surface rail is set to the dovetail groove shape, again it removably is fixed on the holder simultaneously, not only reduced the difficulty of processing, and after surface rail weares and teares, can control maintenance cost effectively separately with its replacing.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention is described further.

Fig. 1 is a kind of view of the embodiment of the invention;

Fig. 2 is that sketch map is looked on the left side of feeding top board in the embodiment of the invention;

Fig. 3 is the another kind of view of the embodiment of the invention;

Fig. 4 is the schematic top plan view of feeding top board in the embodiment of the invention;

Among the figure: 1. slide carriage; 2. broaching tool; 3. holder; 31. surface rail; 4. moving slider; 5. feed arrangement; 51. feeding top board; 511. nut chute; 512. leading screw chute; 52. leading screw; 53. feed screw nut; 54. servomotor; 55. bevel gear pair.

The specific embodiment

Shown in Fig. 1 and Fig. 3 are common; Be respectively the two states sketch map of a kind of continuous broaching structure embodiment of broaching machine; Broaching machine shown in this embodiment is a vertical broaching machine, and promptly broaching tool should be noted that through accomplish the broaching to workpiece in up-and-down motion: the present invention mentioned to the continuous broaching structure of broaching machine be equally applicable to horizontal broaching machine; Its structural principle is similar among the embodiment therewith, in this explanation no longer separately.

This continuous broaching structure is included in the slide carriage 1 that vertical direction is carried out straight reciprocating motion; Said slide carriage 1 is provided with holder 3; Said holder 3 can carry out straight reciprocating motion along with slide carriage 1, and the one side back to said slide carriage 1 on the said holder 3 is provided with surface rail 31, and the meaning on said inclined-plane is to be provided with an angle between the direction of motion of bearing of trend and said slide carriage 1 of said surface rail 3 here; The scope of this angle should remain between 8 °～20 °, is preferably 15 °; Said surface rail 31 can directly be machined on the said holder 3; Also can be used as independent parts removably is fixed in it on said holder 3 with bolt; Like this, when needs are changed surface rail 31, only need that surface rail 31 is pulled down replacing and get final product; Said holder 3 can continue to use, thereby has reduced maintenance cost effectively; Be provided with suitable at said surface rail 31 places and can be along the moving slider 4 of its slip with it; In order to guarantee 4 bearing of trend motions of said moving slider at surface rail 31; The cross section of said surface rail 31 is set to the dovetail groove shape, and the broaching tool 2 that is used for that workpiece is broached is fixed in the end of said moving slider 4.

This continuous broaching structure also comprises the feed arrangement 5 that is used to control said moving slider 4 motions, and said feed arrangement 5 comprises the feeding top board 51 that is fixed on the said moving slider 4, and the said feeding top board 51 preferred iron members that adopt are made; Not only cost is lower, and its fabrication and processing is convenient, certainly; Said moving slider 4 also can be used as an integral body with said feeding top board 51 and uses; But its cost is higher, and processing and fabricating is complicated, is unfavorable for producing.

Said feed arrangement 5 also comprises the leading screw 52 that the direction of motion with said slide carriage 1 laterally arranges; Be arranged with feed screw nut 53 on the said leading screw 52; Said leading screw 52 is driven through bevel-gear sett secondary 55 by servomotor 54; Simultaneously, said servomotor 54 is fixed on the said slide carriage 1 and follows its straight reciprocating motion.

Shown in Fig. 2 and Fig. 4 are common, on said feeding top board 51, have and supply nut chute 511 that said feed screw nut 53 moves and the leading screw chute 512 that supplies said leading screw 52 to move, said nut chute 511 is arranged at the below of said leading screw chute 512; Like this, when said leading screw 52 rotated, said feed screw nut 53 moved up under the cooperation of screw thread; Thereby promoting said feeding top board 51 moves up; Simultaneously, because said moving slider 4 cooperates with the inclined-plane of surface rail 31, said feeding top board 51 is also moving right when moving upward again; Like this; Said nut chute 511 just provides the space of moving for feed screw nut 53, and said leading screw chute 512 is finally realized the feeding of said broaching tool 2 also for leading screw 52 provides the space of moving.

The course of work of the continuous broaching structure of this broaching machine is:

At first; Through servomotor 54 moving slider 4 is adjusted to minimum point (as shown in Figure 1); Large-sized workpiece of packing into; Make total (comprising slide carriage 1) pass the through hole of workpiece and guarantee that broaching tool 2 is positioned at the top of workpiece, at this moment, said broaching tool 2 be the broaching amount of broaching for the first time with the distance of workpiece through-hole inwall.

Then, start power set, slide carriage 1 is moved downward; The through hole that drives holder 3, moving

slider

4 and 2 pairs of workpiece of broaching tool is broached downwards, and power set change direction when slide carriage 1 moves to minimum point, and slide carriage 1 is moved upward; Drive holder 3, moving slider 4 and broaching tool 2 and get back to initial position once more, at this moment, said servomotor 54 starts; Drive screw mandrel 52 rotations, said feed screw nut 53 moves up under the cooperation of screw thread, moves up with moving slider 4 thereby promote said feeding top board 51; Owing to the matching relationship of moving slider 4 with surface rail 31, also there are the motion of horizontal direction in said feeding top board 51 and moving slider 4 when moving upward again, and the direction of its resultant motion promptly is the bearing of trend along said surface rail 31; Like this, just make broaching tool 2 realize the amount of feeding in the horizontal direction, in this process; Said nut chute 511 provides the space of moving for feed screw nut 53; Said leading screw chute 512 also provides the space of moving for leading screw 52, realizes feeding to guarantee broaching tool 2, certainly; The amount of feeding of said broaching tool 2 is to be decided by the angle of inclination of the start-up time of said servomotor 54 and said surface rail 31, and the staff can be provided with according to actual needs.

At last, said slide carriage 1 moves downward once more, and broaching tool 2 is broached to workpiece once more, and so repeat can be accomplished the keyway processing to large-size workpiece continuously.

The continuous broaching structure of this broaching machine is applicable to processes broaching to the keyway of large-size workpiece, and it is novel structure not only, and adjustment is quick, and can realize continuous broaching, has improved working (machining) efficiency widely, has alleviated staff's the amount of labour simultaneously.

The present invention is not limited to the above-mentioned specific embodiment, and all are based on technical conceive of the present invention, and the structural improvement of having done all falls among protection scope of the present invention.

Claims

1. the continuous broaching structure of a broaching machine comprises it is characterized in that the slide carriage and the broaching tool that is used for workpiece is broached of linear reciprocating motion:

Said slide carriage is provided with holder, and the one side back to said slide carriage on the said holder is provided with surface rail, is provided with an angle between the bearing of trend of said surface rail and the direction of motion of said slide carriage;

Also comprise suitable and can be with said surface rail along the moving slider of its slip, and the feed arrangement that is used to control said moving slider;

Said broaching tool is fixed in the end of said moving slider.

2. the continuous broaching structure of a kind of broaching machine as claimed in claim 1; It is characterized in that: said feed arrangement comprises the feeding top board that is fixed on the said moving slider; Also comprise the leading screw that laterally arranges with the said slide carriage direction of motion, be arranged with feed screw nut on the said leading screw;

Have on the said feeding top board and supply nut chute that said feed screw nut moves and the leading screw chute that supplies said leading screw to move, said leading screw is driven by servomotor.

3. the continuous broaching structure of a kind of broaching machine as claimed in claim 1, it is characterized in that: said surface rail removably is fixed on the said holder, and the cross section of said surface rail is the dovetail groove shape.

4. the continuous broaching structure of a kind of broaching machine as claimed in claim 1, it is characterized in that: the angle between the bearing of trend of said surface rail and the direction of motion of said slide carriage is 8 °～20 °.

5. the continuous broaching structure of a kind of broaching machine as claimed in claim 4, it is characterized in that: the angle between the bearing of trend of said surface rail and the direction of motion of said slide carriage is 15 °.

6. the continuous broaching structure of a kind of broaching machine as claimed in claim 2 is characterized in that: the output of said servomotor is connected with said lead screw transmission through bevel-gear sett is secondary, and said servomotor is fixed on the said slide carriage.

7. the continuous broaching structure of a kind of broaching machine as claimed in claim 2, it is characterized in that: said feeding top board is an iron member.