CN2666600Y

CN2666600Y - Hydraulic broaching machine

Info

Publication number: CN2666600Y
Application number: CN 03271144
Authority: CN
Inventors: 孙树才; 元增祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-07-24
Filing date: 2003-07-24
Publication date: 2004-12-29
Anticipated expiration: 2013-07-24

Abstract

A hydraulic broaching machine mainly solves the abuse that the current oil cylinder of the broaching machine is too long. The utility model comprises a machine body, an oil cylinder, a sliding plate and a cutter. The utility model is characterized in that the top of a piston rod in the oil cylinder is fixed with a pulley shaft; two ends of the shaft are correspondingly provided with two pairs of movable blocks; two ends of the machine body are respectively and fixedly provided with two crown blocks which are matched with the movable blocks; one ends of two steel wire ropes are fixed on the sliding plate, and the other ends are respectively through the corresponding crown blocks and movable blocks and are fixed on a corresponding top end bolt which is fixedly connected with the machine body; the two steel wire ropes have the same linear velocity. When the oil cylinder piston of the utility model moves 1 m, a pulling cutter moves 2 m; in this way, the cylinder barrel of the oil cylinder can be shortened by one time. Therefore, the utility model can reduce the manufacture cost, and causes the machine tool to be dense and have small occupying space. The utility model can broach the parts of single bonds, spline, triangle holes, rectangle holes, multilateral holes, round holes, etc.

Description

Hydraulic broaching machine

Affiliated technical field

The utility model relates to a kind of hydraulic broaching machine, relates in particular to a kind of power set of hydraulic broaching machine.

Technical background

Existing hydraulic broaching machine, be to utilize the cutter that commutation send the oil realization to be fixed on the piston rod end before and after oil cylinder to realize broaching tool and withdrawing, the stroke length of its cutter of hydraulic broaching machine of this structure is identical with the piston rod reciprocating stroke, when workpiece is longer, must makes piston rod stroke lengthening, thereby cause the cylinder tube lengthening, but the distinct disadvantage of cylinder tube lengthening is a manufacture difficulty to be strengthened, cost improves, and causes the appearance of the machine tool size to increase simultaneously, and floor space is big.

Summary of the invention

In order to overcome the problems referred to above, the purpose of this utility model is to provide a kind of oil cylinder piston stroke short, machine tool structure compactness, the hydraulic broaching machine that cost is low.

The technical scheme that the utility model is dealt with problems: hydraulic broaching machine, comprise lathe bed, oil cylinder, the slide carriage that cooperates with guide rail, cutter is fixed on the slide carriage, the top that it is characterized in that the oil cylinder inner piston rod is fixed with a pulley spindle, this two ends correspondence be provided with two pairs of movable pulleys, fixedly install two respectively at the two ends of lathe bed and pay the fixed pulley that above-mentioned movable pulley matches; One end of steel cable is fixed on the slide carriage other end and is fixed on the top bolt of fixedlying connected with lathe bed after by the fixed pulley corresponding with it, movable pulley; One end of another root steel wire rope is fixed in addition side of slide carriage, and the other end of this steel wire rope is fixed on another top bolt of fixedlying connected with lathe bed after by the fixed pulley corresponding with it, movable pulley, and two steel wire ropes have identical linear velocity.

The beneficial effects of the utility model are: the utility model hydraulic broaching machine and existing hydraulic broaching machine main difference point are that to use the movable pulley principle be that the movement travel of slide carriage and broaching tool is that the movement travel of oil cylinder piston is the relation of twice, the piston that is oil cylinder is walked 1 meter, broaching tool can be walked 2 meters, and the cylinder barrel of oil cylinder can be lacked one times like this.Shorten the length of cylinder barrel, just can reduce manufacturing cost, and make lathe become compact, floor space is also little.Main application is to utilize the different cutters parts such as singly-bound, spline, delthyrium, square hole, polygon hole, hole, garden of can broaching.

Fig. 1 is overall structure figure of the present utility model;

Fig. 2 is the utility model drive connection figure;

Fig. 3 is that the A of Fig. 2 is to view.

Wherein: 1, lathe bed, 2, oil cylinder, 3, running block, 4, steel wire rope, 5, slide carriage, 6, fixed pulley, 7, the broaching tool fixed block, 8, broaching tool, 9, fixed pulley, 10, steel wire rope, 11, the top bolt, 12, the top bolt.

The specific embodiment

As Fig. 1, Fig. 2, Fig. 3.This hydraulic broaching machine comprises Hydraulic Station lathe bed 1, oil cylinder 2, parts such as slide carriage 5, running block 3, fixed pulley 6, fixed pulley 9, steel wire rope 4, steel wire rope 10.Oil cylinder 2 is fixed on the lathe bed 1, and slide carriage 5 cooperates with guide rail, and it is fixing by broaching tool fixed block 7 that broaching tool 8 is fixed on the slide carriage 5 other end.The top of oil cylinder 2 inner piston rods is fixed with a pulley spindle, this two ends correspondence be provided with two pairs of movable pulleys, promptly running block 3, fixedly install two at the two ends of lathe bed 1 respectively and pay fixed pulley 6, the fixed pulley 9 that above-mentioned movable pulley matches.One end of steel wire rope 4 is fixed on the slide carriage 5 other end and is fixed on the corresponding top bolt 12 of fixedlying connected with lathe bed after by the fixed pulley corresponding with it 6, movable pulley; One end of another root steel wire rope 10 is fixed on slide carriage 5 side in addition, and the other end of this steel wire rope 10 is fixed on another top bolt 11 of fixedlying connected with lathe bed after by another fixed pulley 9 corresponding with it, movable pulley.Two steel wire ropes have identical linear velocity.

This lathe in use, the instruction Hydraulic Station is bought oil in oil cylinder earlier, oil cylinder piston promotes running block 3 and moves right, at this moment, because steel wire rope 10 lower ends are fixed on the top bolt 11 of lathe bed, the other end is fixed on the slide carriage 5, when running block 3 moves to right, must spur slide carriage 5 and be moved to the left generation broaching motion with broaching tool 8.When broaching tool broaching finished, Hydraulic Station sent oil to the oil cylinder commutation, and at this moment, oil cylinder returns to left movement, and steel wire rope 4 retracts initial position by fixed pulley 6 with slide carriage, finishes a working cycles.Here running block 3 is in the process of side-to-side movement, and steel wire rope 10 replaces mutually with steel wire rope 4, and promptly you draw the routing motion that I send me draw you to send, and have identical linear velocity.When oil cylinder drove assembly pulley 3 side-to-side movements, slide carriage 5 and broaching tool 8 were speedup motions, and promptly the oil cylinder advance and retreat are 1 meter, 2 meters of slide carriage setbacks.

Claims

1, hydraulic broaching machine, comprise lathe bed (1), oil cylinder (2), the slide carriage that cooperates with guide rail (5), cutter is fixed on the slide carriage (5), the top that it is characterized in that the oil cylinder inner piston rod is fixed with a pulley spindle, this two ends correspondence be provided with two pairs of movable pulleys, fixedly install two respectively at the two ends of lathe bed (1) and pay fixed pulley (6), the fixed pulley (9) that above-mentioned movable pulley matches; One end of steel cable (4) is fixed on slide carriage (5) and goes up the other end and be fixed on the top bolt (12) of fixedlying connected with lathe bed after by the fixed pulley corresponding with it (6), movable pulley; One end of another root steel wire rope (10) is fixed on slide carriage (5) side in addition, the other end of this steel wire rope (10) is fixed on another top bolt (11) of fixedlying connected with lathe bed after by the fixed pulley corresponding with it (9), movable pulley, and two steel wire ropes have identical linear velocity.