CN203390780U

CN203390780U - Clamping mechanism used for clamping

Info

Publication number: CN203390780U
Application number: CN201320426671.5U
Authority: CN
Inventors: 朱久红; 贺贤汉; 章红炯
Original assignee: Hangzhou Dahe Thermo Magnetics Co Ltd
Current assignee: Hangzhou Dahe Thermo Magnetics Co Ltd
Priority date: 2013-07-16
Filing date: 2013-07-16
Publication date: 2014-01-15
Anticipated expiration: 2023-07-16

Abstract

The utility model discloses a clamping mechanism used for clamping. The clamping mechanism comprises a middle cone block, half cone blocks and a compression bolt. The middle cone block is provided with T-shaped conical faces. The side surface of each half cone block is provided with a T-shaped groove. The T-shaped conical faces are inserted into the T-shaped grooves and can slide along the T-shaped grooves. The tapered middle cone block is stressed to push the half cone blocks downwards to slide towards the outer side, the side surfaces of the half cone blocks are attached to and squeeze stress surfaces of a workpiece to complete clamping of the workpiece, and squeezing force can be adjusted along with magnitude of twisting force of the compression bolt, so that compression force of the half cone blocks to the workpiece is enhanced, flexibility and convenience in compressing and loosening are realized, and high stability is achieved.

Description

A kind of clamping mechanism for compressing

Technical field

The utility model relates to a kind of instrument, refers more particularly to a kind ofly to have compared with high-clamping force, compress effective clamping mechanism.

Background technology

Machining needs workpiece to clamp or compress often, workpiece generation bias effect crudy when preventing from processing, the clamping device of prior art as shown in Figure 1, comprise rectangular blocks and hold-down bolt, when needs clamp, manual moving long square block and workpiece recline, hold-down bolt is tightened to fixed length square block, indirect fixation workpiece, rectangular blocks depends on both tightness degree that reclines completely to the compression effect of workpiece, because the manual rectangular blocks that reclines is affected by operating personnel's thrust only, there is no other external active forces, thrust is less, and when screwing, bolt also can drive rectangular blocks to mobile in the other direction, cause compression effect poor, can not meet compression requirement.

Utility model content

The utility model mainly solves that prior art hold down gag only depends on artificial promotion laminating, to compress effect poor and use inconvenient technical problem; Providing a kind of has compared with high-clamping force, Work-sheet pressing clamping mechanism effective and easy to use.

In order to solve the technical problem of above-mentioned existence, the utility model is mainly to adopt following technical proposals:

A kind of clamping mechanism for compressing of the present utility model, be located at workbench surface, for workpiece pressing, comprise middle cone piece, the half cone piece that is arranged in Zhong Zhuikuai side and coordinates with cone piece and compression are bored the hold-down bolt of piece, described middle cone piece is provided with installing hole, described hold-down bolt is threaded with described workbench through installing hole, middle cone piece is inverted trapezoidal platform structure, the left and right sides central plane of middle cone piece is provided with the T-shaped conical surface, described half cone piece is bucking ladder structure, one side central plane of half cone piece reclines perpendicular to bottom surface and with workpiece, the opposite side central plane of half cone piece is provided with T-shaped groove, the described T-shaped conical surface and described T-shaped groove match, the T-shaped conical surface is inserted in T-shaped groove and can slides up and down along T-shaped groove, middle cone piece and the half cone piece composition clamping mechanism that cooperatively interacts, the T-shaped conical surface of middle cone piece injects the T-shaped groove of half cone piece and can slide up and down along T-shaped groove, make stressed the moving down of middle cone piece promote the horizontal slip laterally of half cone piece, the half cone Kuai side workpiece stress surface that contacts completely and fit, promote the clamping force of half cone piece to workpiece, stability is higher, and clamping force is directly proportional to the hold-down bolt torsion on middle cone piece, can effectively realize more flexibly the clamping of workpiece, simple in structure, easy to make, with low cost.

As preferably, two lateral edges of described middle cone piece central plane are respectively equipped with raised line, the central plane of described raised line and middle cone piece forms the T-shaped conical surface of middle cone piece that arranges body, on seamed edge, design raised line, raised line can be inserted in the groove of T-shaped groove, the conical surface and draw-in groove coordinate firmly, thereby in guaranteeing, bore piece and half cone piece can not depart from, and middle cone piece slides flexibly in groove.

As preferably, described middle cone piece is isosceles trapezoid platform structure, and described half cone piece is two, is located at respectively Zhong Zhuikuai both sides and matches with middle cone piece, and two of left and right half cone piece can compress operation to two workpiece simultaneously, compresses efficiency high.

As preferably, the isosceles trapezoid base angle of described middle cone piece is 70 ° ± 5 °, better by the middle cone piece result of use of this scope base angle design, compresses and unscrews flexibly.

As preferably, the installing hole of described middle cone piece is counterbore, and described hold-down bolt is hexagon socket head cap screw, and described counterbore matches with described hexagon socket head cap screw, and hold-down bolt is placed in counterbore, and bolt head is hidden can not affect workpiece processing.

The beneficial effects of the utility model are: the T-shaped conical surface of middle cone piece injected in the T-shaped groove of half cone piece and slide up and down along T-shaped groove, middle cone piece is stressed moves down and promotes the horizontal slip laterally of half cone piece, make the half cone Kuai side workpiece stress surface that contacts completely and recline, promoted the thrust of half cone piece to workpiece, stability is higher, loose unloading and compression flexible and convenient operation, thrust can regulate with the torque magnitude of hold-down bolt, can effectively realize more flexibly clamping and the loose unloading of workpiece, clamping mechanism is simple in structure, easy to make, with low cost.

Accompanying drawing explanation

Fig. 1 is the clamping device schematic diagram of prior art.

Fig. 2 is a kind of structural representation of the present utility model.

Fig. 3 is the blast structural representation of Fig. 2.

1. workpiece in figure, bore piece in 2., 3. half cone piece, 4. hold-down bolt, 5. installing hole, the 6.T type conical surface, 7.T type groove, 8. cuboid piece.

The specific embodiment

Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.

Embodiment: a kind of clamping mechanism for compressing of the present embodiment, be arranged at workbench surface, compression for workpiece 1, as shown in Figures 2 and 3, clamping mechanism comprises middle cone piece 2, in the two half cone pieces 3 that lay respectively at Zhong Zhuikuai side and match with middle cone piece and compression, bore the hold-down bolt 4 of piece, on middle cone piece, be designed with installing hole 5, installing hole is counterbore, hold-down bolt is hexagon socket head cap screw, counterbore matches with hexagon socket head cap screw, hexagon socket head cap screw is threaded with workbench through installing hole, the inverted trapezoidal platform structure that middle cone piece is isosceles, the base angle of bucking ladder is 70 °, two lateral edges of middle cone piece central plane are designed with respectively raised line, the T-shaped conical surface 6 of the integrant middle cone piece of central plane of two raised lines and middle cone piece, Zhong Zhuikuai both sides central plane is all designed with the T-shaped conical surface, half cone piece is also bucking ladder structure, one side central plane of half cone piece reclines perpendicular to bottom surface and with workpiece stress surface, the opposite side central plane of half cone piece is provided with T-shaped groove 7, the T-shaped conical surface and T-shaped groove match, the T-shaped conical surface inserts in T-shaped groove and can slide up and down along T-shaped groove.

During use, the T-shaped groove that the T-shaped conical surface of middle cone piece is injected to half cone piece forms clamping mechanism, hold-down bolt inserts counterbore and is threaded with workbench, screwing hold-down bolt makes middle cone piece glide along T-shaped groove, now half cone piece is subject to the active force extruding that the T-shaped conical surface of middle cone piece transmits, make the power horizontal slip laterally that is squeezed of half cone piece, half cone Kuai side contacts and abuts on the stress surface of workpiece completely, torsion raising when hold-down bolt, be that hold-down bolt is twisted tightlyer, middle cone piece sinks darker, the extruding force that the T-shaped conical surface transmits is larger, make half cone piece larger to the thrust of workpiece, promoted the clamping action of half cone piece to workpiece, as need loose unloading, only need unscrew hold-down bolt, make to move on cone piece, the suffered extruding force of half cone piece disappears, half cone piece slides to the inside, the thrust that workpiece is subject to gets loose, removed the clamping of workpiece.

More than explanation has not been done restriction to the utility model; the utility model is also not limited only to giving an example of above-mentioned explanation; the variation that those skilled in the art make in essential scope of the present utility model, retrofit, increase or replace, all should be considered as protection domain of the present utility model.

Claims

1. the clamping mechanism for compressing, be located at workbench surface, for workpiece pressing (1), it is characterized in that: described clamping mechanism comprises middle cone piece (2), the half cone piece (3) that is arranged in Zhong Zhuikuai side and coordinates with cone piece and compression are bored the hold-down bolt (4) of piece, described middle cone piece is provided with installing hole (5), described hold-down bolt is threaded with described workbench through installing hole, middle cone piece is inverted trapezoidal platform structure, Zhong Zhuikuai both sides central plane is provided with the T-shaped conical surface (6), described half cone piece is bucking ladder structure, one side central plane of half cone piece reclines perpendicular to bottom surface and with workpiece, the opposite side central plane of half cone piece is provided with T-shaped groove (7), the described T-shaped conical surface and described T-shaped groove match, the T-shaped conical surface is inserted in T-shaped groove and can slides up and down along T-shaped groove.

2. a kind of clamping mechanism for compressing according to claim 1, is characterized in that: two lateral edges of described middle cone piece (2) central plane are respectively equipped with raised line the central plane T-shaped conical surface of integrant middle cone piece (6) of described raised line and middle cone piece.

3. a kind of clamping mechanism for compressing according to claim 1 and 2, is characterized in that: described middle cone piece (2) is isosceles inverted trapezoidal platform structure, and described half cone piece (3) is two, is located at respectively Zhong Zhuikuai both sides and matches with middle cone piece.

4. a kind of clamping mechanism for compressing according to claim 3, is characterized in that: the isosceles trapezoid base angle of described middle cone piece (2) is 70 ° ± 5 °.

5. a kind of clamping mechanism for compressing according to claim 1, is characterized in that: the installing hole (5) of described middle cone piece (2) is counterbore, and described hold-down bolt (4) is hexagon socket head cap screw, and described counterbore matches with described hexagon socket head cap screw.