CN102554363A

CN102554363A - Heavy gear transmission vertical broaching machine tool

Info

Publication number: CN102554363A
Application number: CN201210014046XA
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: 2012-07-11

Abstract

The invention discloses a heavy gear transmission vertical broaching machine tool. The heavy gear transmission vertical broaching machine tool comprises a base and a machine tool body, wherein the machine tool body is fixed on the base; a guide rail extending in the vertical direction is arranged on the machine tool body; a main slide carriage driven by a power device and linearly moving in a reciprocating way is arranged within the guide rail; the power device comprises an electric motor and a driving shaft; the driving shaft is connected to an output end of the electric motor; a driving gear is arranged on the driving shaft; a driving rack adaptive to the driving gear is fixed on the main slide carriage; a clamping device for fixing a broaching tool is arranged on the main slide carriage; the heavy gear transmission vertical broaching machine tool also comprises a workbench arranged on the base; and a fixing device for fixing a workpiece is arranged on the workbench. The heavy gear transmission vertical broaching machine tool disclosed by the invention has the advantages of simple transmission mode and convenience for mounting and is very suitable for broaching heavy and large-sized workpieces; the bearing capacity of the broaching machine tool can be effectively enhanced so that the transmission is stable and the error generated in the machining process is largely reduced; and the fault source can be accurately figured out in time after the fault occurs so that the maintenance time is reduced.

Description

Heavy-duty gear gearing vertical broaching lathe

Technical field

The present invention relates to the vertical broaching machine technical field, relate in particular to a kind of heavy-duty gear gearing vertical broaching lathe.

Background technology

Vertical broaching machine of the prior art generally includes a base, and base is provided with lathe bed, and lathe bed is provided with the main cargo chute that can move up and down; Also comprise the fluid pressure drive device that is used to drive main cargo chute in addition; Broaching tool through being fixed on the main cargo chute is accomplished the processing to workpiece, because fluid pressure drive device is the mechanical electronic hydraulic integrated system of a complicacy, in case system breaks down; Often be difficult in and accurately confirm system failure source in the short time; The technical staff can only the dependence experience analyze, and causes maintenance speed slow, inefficiency; And the vertical broaching machine of this structure only is applicable to the small-sized workpiece of processing, is inappropriate for heavy type, large-scale workpiece, and its range of work receives certain restriction.

Summary of the invention

Technical problem to be solved by this invention is: a kind of heavy-duty gear gearing vertical broaching lathe is provided, is applicable to heavy, large-scale workpiece are processed.

For solving the problems of the technologies described above; Technical scheme of the present invention is: heavy-duty gear gearing vertical broaching lathe; Comprise base and be fixed in the lathe bed on the said base, said lathe bed is provided with the guide rail that vertically extends, and is provided with in the said guide rail by power set main cargo chute that drive, linear reciprocating motion; Said main cargo chute is provided with the clamping device that is used for fixing broaching tool; Also comprise the workbench that is arranged on the said base, said workbench is provided with the fixture that is used for fixing workpiece, and said power set comprise motor and the driving shaft that is connected in said motor output end; Said driving shaft is provided with driven wheel, is fixed with the driving tooth bar suitable with said driven wheel on the said main cargo chute.

As a preferred implementation, said driven wheel is a herringbone bear, and said driving tooth bar is the herringbone tooth bar suitable with said herringbone bear.

As a preferred implementation, be provided with movably wedge gib between the surface of the contacted wherein side of said guide rail and said main cargo chute, the cross section of said wedge gib is a parallelogram.

As a preferred implementation, have some lightening holes on said lathe bed and the main cargo chute.

After having adopted technique scheme; The invention has the beneficial effects as follows: because the power set employing of driving main cargo chute is the mechanical structure form of gear drive tooth bar, rack drives main cargo chute; Its kind of drive is simple, after breaking down, can accurately and timely find the source of trouble, shortens maintenance time; And its compact conformation, transmission efficiency are high, be applicable to heavy, large-scale workpiece are broached.

Because what gear adopted is herringbone bear; Tooth bar is the herringbone tooth bar suitable with it; Its bearing capacity is high, stable drive, can reduce the error that produces in the process greatly, and the gear teeth of herringbone bear are provided with a rational helical angle can increase the number of teeth that transmission process middle gear and tooth bar mesh; Can offset simultaneously the axial thrust load that engagement produces, reduce noise.

Owing between the surface of guide rail and the contacted wherein side of main cargo chute, be provided with movably wedge gib; When main cargo chute is working long hours when producing deviation; Can be through regulating the distance between this wedge gib adjustment main cargo chute and the guide rail; Main cargo chute is closely contacted with guide rail, and process is steady.

Owing on lathe bed and main cargo chute, offered some lightening holes respectively, can alleviate the weight of lathe effectively, increase its stability simultaneously.

Description of drawings

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

Fig. 1 is that the master of the embodiment of the invention looks sketch map;

Fig. 2 is the cross-sectional schematic of A-A among Fig. 1;

Fig. 3 is the schematic top plan view of Fig. 1;

Fig. 4 is the local enlarged diagram at I place among Fig. 3;

Among the figure: 1. base; 2. lathe bed; 31. motor; 32. driving shaft; 33. driven wheel; 34. driving tooth bar; 4. main cargo chute; 41. lightening hole; 5. clamping device; 6. workbench; 7. guide rail; 8. broaching tool; 9. wedge gib.

The specific embodiment

Shown in Fig. 1, Fig. 2 and Fig. 3 are common; Structural representation for the vertical broaching lathe of heavy gear drive; This lathe comprises base 1 and is fixed in the lathe bed 2 on the said base 1; Said lathe bed 2 is provided with vertically the guide rail 7 that extends, and in said guide rail 7, is provided with suitable with it and can be along the main cargo chute 4 of the reciprocal linear slide of its bearing of trend, and said main cargo chute 4 is driven by power set; Power set described herein comprise motor 31, are connected in the driving shaft 32 of said motor 31 outputs, are fixed in the driven wheel 33 on the said driving shaft 32 and are fixed in the driving tooth bar 34 on the said main cargo chute 4; Said driven wheel 33 is meshed with driving tooth bar 34, and said driven wheel 33 is preferably herringbone bear, and 34 of said driving tooth bars are the herringbone tooth bar suitable with said driven wheel 33; Also be provided with the clamping device 5 that is used for fixing broaching tool 8 on the said main cargo chute 4; On said base 1, also be provided with the workbench 6 that is used for the support workpiece; Said workbench 6 is provided with the fixture (not shown) that is used for fixing workpiece; Clamping device 5 described herein all is technical schemes common in the present technique field with the fixture employing, repeats no more at this.

As shown in Figure 4; Local enlarged diagram for I place among Fig. 3; Between the surface of said guide rail 7 and main cargo chute 4 contacted wherein sides, be provided with the wedge gib 9 that cross section is a parallelogram, when said main cargo chute 4 produces deviation in the back that works long hours, can eliminate the gap between main cargo chute 4 and the guide rail 7 through regulating said wedge gib 9; Main cargo chute 4 is closely contacted with guide rail 9 all the time, guarantee the steady of process.

In addition, also offered some lightening holes 41 on said main cargo chute 4 and the lathe bed 2, not only reduced the whole weight of lathe, and increased its stability.

The course of work of this heavy-duty gear gearing vertical broaching lathe is:

At first workpiece is positioned on the said workbench 6; Utilize fixture to be fixed; Start said motor 31 then, power reaches on the said driving tooth bar 34 through driving shaft 32, driven wheel 33, can drive said main cargo chute 4 and move back and forth; Simultaneously, rely on the broaching tool 8 that clamping device 5 is fixed on the said main cargo chute 4 promptly workpiece to be broached.

This heavy-duty gear gearing vertical broaching lathe kind of drive is simple, easy for installation, uses the bearing capacity that herringbone bear and herringbone tooth bar can improve the broaching lathe effectively; Its transmission is tended to be steady; Reduce the error that produces in the process greatly, and the gear teeth of herringbone bear are provided with the number of teeth that a rational helical angle can increase transmission process middle gear and tooth bar engagement, can offset the axial thrust load that engagement produces simultaneously; Reduce noise; After breaking down, can accurately and timely find the source of trouble, shorten maintenance time, be fit to very much heavy, large-scale workpiece are broached.

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. heavy-duty gear gearing vertical broaching lathe; Comprise base and be fixed in the lathe bed on the said base, said lathe bed is provided with the guide rail that vertically extends, and is provided with in the said guide rail by power set main cargo chute that drive, linear reciprocating motion; Said main cargo chute is provided with the clamping device that is used for fixing broaching tool; Also comprise the workbench that is arranged on the said base, said workbench is provided with the fixture that is used for fixing workpiece, it is characterized in that: said power set comprise motor and the driving shaft that is connected in said motor output end; Said driving shaft is provided with driven wheel, is fixed with the driving tooth bar suitable with said driven wheel on the said main cargo chute.

2. heavy-duty gear gearing vertical broaching lathe as claimed in claim 1, it is characterized in that: said driven wheel is a herringbone bear, said driving tooth bar is the herringbone tooth bar suitable with said herringbone bear.

3. heavy-duty gear gearing vertical broaching lathe as claimed in claim 2, it is characterized in that: be provided with movably wedge gib between the surface of the contacted wherein side of said guide rail and said main cargo chute, the cross section of said wedge gib is a parallelogram.

4. like described any heavy-duty gear gearing vertical broaching lathe of claim 1 to 3, it is characterized in that: have some lightening holes on said lathe bed and the main cargo chute.