CN201357313Y

CN201357313Y - Lever-type clamping device of moving inclined block of cross beam of machine tool

Info

Publication number: CN201357313Y
Application number: CNU2009201450081U
Authority: CN
Inventors: 房延军; 姜明; 程凤兰; 孙洪库
Original assignee: Qiqihar No 2 Machine Tool Group Co Ltd
Current assignee: Qiqihar No 2 Machine Tool Group Co Ltd
Priority date: 2009-03-04
Filing date: 2009-03-04
Publication date: 2009-12-09
Anticipated expiration: 2019-03-04

Abstract

The utility model relates to a lever-type clamping device of a moving inclined block of a cross beam of a machine tool, which mainly solves the problems that the clamping force of the clamping device has less amplifying capability and can not lock by self. The lever-type clamping device comprises clamping blocks (1), a lever (3), a double-ended bolt (9), a cylinder (7), a cross beam (8) and a vertical column (10); the double-ended bolt (9) is arranged at the position of the gap of the cross beam (8) and the lever (3); and the lever-type clamping device is characterized in that the front end and the rear end of the lever (3) are respectively provided with the clamping block (1) and a roller (4); the lower part of the roller (4) is provided with an inclined block (5); and the rear end of the inclined block (5) is connected with the cylinder (7) fixed at one end of the cross beam (8). The clamping device has simple structure, self-locking function, large clamping force, high working efficiency, safety and stability.

Description

The skewback that a kind of lathe crossbeam moves-lever clamping device

Technical field

The skewback that a kind of clamping device that relates to machine tool field, especially lathe crossbeam move-lever clamping device.

Background technology

Speed is interrogated in the development of machine industry very much in the field of machining, and machine performance is also more and more higher to the requirement of the quality of part and precision, and is therefore also more and more stricter to the requirement of the clamping device of lathe self.The lathe crossbeam not only needs normal moving on column, also need to fix, and need use clamping device in the time of fixedly, and the degree of clamping and state are very big to the precision influence of processing parts, is not difficult to guarantee crudy in the higher position if clamp efficient.And install immediate a kind of clamping device with this in the prior art is dish spring-hydraulic clamp, it is to give the dish spring with pressure when utilizing the oil cylinder work that is installed in the crossbeam below, act on an end of lever behind the dish spring compression generation elastic force,, by clamp crossbeam is clamped on the guide pass of column as fulcrum by stud at the other end of lever.But its defective and deficiency are: the amplifying power of the clamping force of its generation is less, and does not have auto-lock function, and clamped condition is firm inadequately, and operating efficiency is not high; Dish spring-hydraulic clamp is had relatively high expectations to its sealing property simultaneously, reveals easily.

The utility model content

The purpose of this utility model is to overcome clamping device clamping force limited size, the defective that does not have auto-lock function and deficiency in the present prior art, and the skewback-lever clamping device that provides a kind of lathe crossbeam to move, it can solve defective and the deficiency that present prior art exists effectively in machining.The utility model clamping force is big, self-locking performance good, dependable performance.

Technical solution of the present utility model is: it comprises clamp, lever, stud, oil cylinder, crossbeam, column, and crossbeam and lever gap location are inserted a stud, and two ends, the lever left and right sides are equipped with clamp and roller respectively; And the below of roller is equipped with skewback, and the right-hand member of skewback is connected with the oil cylinder that is fixed on crossbeam one end.

The skewback that described lathe crossbeam moves-lever clamping device, clamp and lever fix by the pin that rises, and oil cylinder is connected with skewback by piston.

Technique effect of the present utility model is: because the utility model adopts said structure, be provided with skewback and roller in its structure, when masterpiece is used on the skewback, skewback moves, by skewback this power is amplified, and act on the lever right-hand member, and amplify through lever again, then produce required clamping force at the lever right-hand member.Active force makes this device have enough big clamping force through skewback, twice amplification of lever, when clamping back cancellation active force, skewback is not done reset movement owing to self-locking performance, the clamping point of lever front end still keeps original clamping force, when only applying opposition, just can loosen clamping point.Use this device, active force is little, and clamping force is big; The clamping performance is good, and the energy self-locking; Good manufacturability, simple in structure, safe and reliable.

Description of drawings

Accompanying drawing 1 is a structure installation diagram of the present utility model.

Among the figure: 1-clamp, the 2-pin that rises, 3-lever, 4-roller, 5-skewback, 6-piston, 7-oil cylinder, 8-crossbeam, 9-caging bolt, 10-column.

The specific embodiment

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

Shown in accompanying drawing 1, it comprises clamp 1, lever 3, stud 9, oil cylinder 7, crossbeam 8, column 10, crossbeam 8 is inserted a stud 9 with lever 3 gap locations, stud 9 plays balance pivot, there is clamp 1 lever 3 front ends belows, and clamp 1 is fixed on the left end of lever 3 by the pin 2 that rises, and the right-hand member of lever 3 is fixed with a roller 4, the below of roller 4 is fixed with skewback 5, so just forms lever construction.Clamp 1 is fixedly connected with lever 3 by the pin 2 that rises, so clamp 1 can move with lever 3 and crossbeam 8.The right-hand member of skewback 5 is connected with the piston 6 of oil cylinder 7, and piston 6 drives skewback 5 and does horizontal movement when oil cylinder 7 work.When masterpiece was used on the skewback, skewback moved, and by skewback this power was amplified, and acted on the lever right-hand member, amplified through lever again, then produced required clamping force at the lever right-hand member.Active force makes this device have enough big clamping force through skewback, twice amplification of lever, thereby reaches the purpose of clamping.When clamping back cancellation active force, skewback is not made complex displacement owing to have self-locking performance moving, and the clamping point of lever left end still keeps original clamping force, when only applying opposition, just can loosen clamping force, thereby has good auto-lock function.

During concrete operations, this clamping device is installed on the crossbeam 8, and clamp 1 is positioned on the guide pass of column 10, and the size of clamping force is directly proportional with active force and the torque ratio of lever 3, the amplification ratio of skewback 5, the product of mechanical efficiency of 7 pairs of skewbacks 5 of oil cylinder.During design, active force and the position of the fulcrum of change lever 3 and the gradient of skewback 5 according to oil cylinder 7 can obtain required clamping force.The gradient of skewback 5 is big more, and the clamping force that secondary amplifies is just big more, and the distance of the position of the fulcrum of lever 3 and skewback 5 is big more, and the clamping force of its generation is just big more.Do when crossbeam 8 and to move vertically to certain position and when need clamping, the active force pulling skewback 5 of oil cylinder 7 to set makes crossbeam 8 be clamped on the guide pass of column 10 by clamp 1.Adopt the effect of roller 4 to be that it can balance clamp 1 and the frictional force of column 10 on guide pass, to reduce the wearing and tearing of clamp 1 on the guide pass of column 10; Simultaneously roller 4 be owing to self can rotate, thereby makes skewback 5 have good auto-lock function.As oil cylinder 7 decompressions or quit work, make crossbeam 8 continue keep step up state because of the self-locking performance of skewback 5 this moment, causes equipment to damage like this with regard to having avoided the malfunctioning of clamping device and personnel injure.When crossbeam 8 needs were mobile, oil cylinder 7 promoted skewbacks 5 and moves to assigned address, is sent by travel switch and loosens signal, and clamp 1 unclamps on column 10 guide pass simultaneously, moves then.

Claims

1, skewback-lever clamping device of moving of a kind of lathe crossbeam, comprise clamp (1), lever (3), stud (9), oil cylinder (7), crossbeam (8), column (10), crossbeam (8) is inserted a stud (9) with lever (3) gap location, and it is characterized in that: lever (3) rear and front end is equipped with clamp (1) and roller (4) respectively; And the below of roller (4) is equipped with skewback (5), and the rear end of skewback (5) is connected with the oil cylinder that is fixed on crossbeam (8) one ends (7).

2, the skewback-lever clamping device that moves according to the described lathe crossbeam of claim 1 is characterized in that: clamp (1) fixes by the pin that rises (2) with lever (3).

3, the skewback-lever clamping device that moves according to the described lathe crossbeam of claim 1 is characterized in that: oil cylinder (7) is connected with skewback (5) by piston (6).