CN2095060U

CN2095060U - Adjustable universal work clamp

Info

Publication number: CN2095060U
Application number: CN 91212697
Authority: CN
Inventors: 张澄; 曾兆祥; 罗日华
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-05-18
Filing date: 1991-05-18
Publication date: 1992-02-05

Abstract

The utility model discloses an adjustable universal workpiece clamp for clamping workpieces for a machine tool, which is mainly composed of a clamp (1), a hexagonal bolt (3) with a shoulder, a supporting bracket (6), support springs (7), a screw rod (9) of a T-shaped groove, a base (10) with steps and adjusting screws (11). While in use, the utility model can be fixed in the T-shaped groove on the workbench surface of a machine tool by the screw rod (9) of the T-shaped groove, and a workpiece can be arranged between the workbench surface and the end surface of the clamp. The utility model has the advantages of convenient assembly and disassembly, high efficiency, strong versatility, and low cost. The height and the position of the clamp are adjustable, and the workpieces can be firmly clamped without looseness, so that the machining precision can be guaranteed. The utility model can be designed into serial products of various specifications, so that special fixtures are unnecessary to be designed and manufactured for certain workpieces.

Description

Adjustable universal work clamp

The utility model relates in the mechanical work field workpiece clamp fixing apparatus that can pull down from lathe, specifically is meant a kind of adjustable general workpiece pressing plate.

Clamping device general on the present domestic lathe generally adopts the leatherhead pressing plate, promptly form by parallels, T type slot bolt, nut and pressing plate, because workpiece height and parallels height are not adaptive, so when clamping is adjusted, need constantly transposing sheet metal, in the hope of keeping excellent contact between pressing plate, parallels, the workpiece.But because operation is cumbersome, do not note slightly, just easily cause loose contact and clamping degree not enough, so that in workpiece process, make pressing plate loosening, its result not only reduces the machining accuracy of workpiece, and causes workpiece to scrap and tool damage.Leatherhead pressing plate dismounting trouble owing to it can not be adjusted flexibly at vertical and horizontal, and can not rotate freely angle, and it is too time-consuming therefore to change workpiece, makes working (machining) efficiency very low.

The purpose of this utility model provides a kind of easy and simple to handle and general workpiece pressing plate of the good lathe of clamping degree, and makes it adjustable flexibly when the clamping workpiece.

Solution of the present utility model is as follows.It has a block pressur plate, on pressing plate, have the pressing plate strip hole of vertical direction, the pressing plate below is connected with a bearing support, and pressing plate makes pressing plate to do to slide relatively along the groove of bearing support by its bottom pressing plate convex tendon that has and the sliding mutually interlocking of groove that the bearing support top has.The bearing support axis hole that has vertical direction on bearing support is connected with the pressing plate strip hole, a band shoulder hex bolts passes the pressing plate strip hole and with the bearing support axis hole pressing plate is linked to each other with bearing support from the pressing plate top, this bolt bottom is positioned at the top of a band step base, on band step base, have the base axis hole of vertical direction, the T-shaped T-slot screw rod of one root bottom part passes the base axis hole upwards from band step base below, its upper internal threaded spins mutually with the bottom screw rod of band shoulder hex bolts, a support spring is socketed in bearing support and is with the band between the step base to take on hex bolts and T-slot screw rod outside, its top and bottom contact with bearing support and band step base respectively, have the different step surface of several height on the band step base, each step surface all equates from the distance of base axis hole.Upwards have the bearing support screw from the bottom on the boss of bearing support one end, an adjustment screw that is positioned at the bearing support below is screwed in the bearing support screw.The utility model with said structure is when concrete the use, the T shape bottom of T-slot screw rod should be embedded in the T-slot on the lathe work top, to be with the step base to place on the platen face then, and make the T-slot screw rod pass the base axis hole, again briquetting, bearing support, band shoulder hex bolts and support spring are loaded onto, to be with the shoulder hex bolts to spin mutually with the T-slot screw rod, so just make and be with the step base, T-slot screw rod and band shoulder hex bolts are connected on the platen face, and pressing plate, bearing support and adjustment screw are supported spring again and support, under the situation of unscrewing between band shoulder hex bolts and the T-slot screw rod, available hand operated band step base rotates around the T-slot screw rod in 360 ℃ of scopes, the flexible modulation when adapting to the clamping workpiece.During the clamping workpiece, workpiece should be placed between the end and work top of pressing plate, unscrew band shoulder hex bolts then, with hand operated pressing plate and the rotation of bearing support strip winding shoulder hex bolts, because the effect of gravity, pressing plate and bearing support compression support spring, pressing plate contact workpiece top after the reduction, the step surface of a proper height on adjustment screw bottom and the band step base below the bearing support is contacted,, can realize by the relative altitude of adjustment adjustment screw as the high slightly or end slightly.According to the length and width size of workpiece, can also do relative motion along the groove of bearing support with the hand operated pressing plate, to determine pressing plate end and the contacted proper site in workpiece top.After aforesaid operations is finished, will be with again between shoulder hex bolts and the T-slot screw rod to screw, and make the pressing plate end press workpiece.After processing, band shoulder hex bolts must be unscrewed, can take out workpiece.

Relatively existing leatherhead pressing plate, the utility model mounting or dismounting are very convenient, and the height of pressing plate and orientation can be adjusted in three dimensions flexibly, so clamping workpiece and transposing workpiece can finish in very short time, have improved working (machining) efficiency greatly.As long as screw band shoulder hex bolts during the clamping workpiece, just can form very big clamping power to workpiece, make workpiece firmly locate and do not become flexible, guarantee the precision of processing.This device can be designed to the virtually any size specification that the user needs, and forms for various milling machines, grinding machine and the matching used series of products of planer.Because therefore its highly versatile can needn't manufacture and design the anchor clamps of special use for some processing work again, thereby can cut down finished cost.

Fig. 1 is a kind of concrete structure figure of the present utility model;

Work schematic diagram when Fig. 2 is contained in clamping workpiece on the platen face for the utility model of Fig. 1.

Reference numeral among the above-mentioned figure is: 1, and pressing plate; 2, the pressing plate strip hole; 3, band shoulder hex bolts; 4, the bearing support axis hole; 5, the pressing plate convex tendon; 6, bearing support; 7, support spring; 8, the base axis hole; 9, the T-slot screw rod; 10, band step base; 11, adjustment screw; 12, the bearing support axis hole; 13, the platen face; 14, the work top T-slot; 15, workpiece.

Claims

1, a kind of adjustable general workpiece pressing plate that is used for lathe clamping workpiece, it is characterized in that, it has a block pressur plate (1), on pressing plate (1), have the pressing plate strip hole (2) of vertical direction, pressing plate (1) below is connected with a bearing support (6), pressing plate (1) is slided interlocking by the pressing plate convex tendon (5) that its bottom has mutually with the groove that bearing support (6) top has, the bearing support axis hole (4) that has vertical direction on bearing support (6) is connected with pressing plate strip hole (2), a band shoulder hex bolts (3) passes pressing plate strip hole (2) from pressing plate (1) top and with bearing support axis hole (4) pressing plate (1) is linked to each other with bearing support (6), this bolt (3) bottom is positioned at the top of a band step base (10), on band step base (10), have the base axis hole (8) of vertical direction, the T-shaped T-slot screw rod (9) of one root bottom part passes base axis hole (8) upwards from band step base (10) below, its upper internal threaded spins mutually with the bottom screw rod of band shoulder hex bolts (3), a support spring (7) is socketed in the outside that the band between bearing support (6) and the band step base (10) is takeed on hex bolts (3) and T-slot screw rod (9), its top and bottom contact with bearing support (6) and band step base (10) respectively, has the different step surface of several height on the band step base (10), each step surface all equates from the distance of base axis hole (8), upwards have bearing support screw (12) from the bottom on the boss of bearing support (6) one ends, an adjustment screw (11) that is positioned at bearing support (6) below is screwed in bearing support screw (12).