CN211759929U

CN211759929U - Modular side clamping fixture

Info

Publication number: CN211759929U
Application number: CN201922393835.9U
Authority: CN
Inventors: 刘巧侠; 方运节; 熊涛
Original assignee: Suzhou Lianjia Precision Machinery Co ltd
Current assignee: Suzhou Lianjia Precision Machinery Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-10-27
Anticipated expiration: 2029-12-27

Abstract

The utility model discloses a modularization side presss from both sides anchor clamps, a serial communication port, include: the device comprises a bottom plate, a fixed stop block, a tensioning block, a locking block and a side limit block; the bottom plate is provided with a locking groove, a fixing groove and a positioning groove, the locking groove transversely penetrates through the bottom plate side by side, and the fixing groove, the positioning groove and the locking groove are arranged in a crossed manner; the fixed stop block is arranged in the fixed groove, the tensioning block is arranged in the positioning groove, the locking block is arranged in the locking groove, and the locking block moves in the locking groove; the locking screw penetrates through the locking block and extends into the tensioning block; the side limiting block is arranged on the side surface of the bottom plate and is fixedly connected with the bottom plate; the upper surfaces of the fixed stop block, the locking block and the side limit block are all higher than the upper surface of the bottom plate. By the mode, the workpiece can be directly clamped without milling the clamping position, so that the milling clamping position is saved, and the processing time is reduced; and each subassembly of anchor clamps can both change different specifications according to actual need, and it is convenient to switch, use nimble, application scope is extensive.

Description

Modular side clamping fixture

Technical Field

The utility model relates to a machining technology field especially relates to a modularization side presss from both sides anchor clamps.

Background

The clamping method for the part material in the machining process is widely used at present as a bench vice, and the bench vice is used in large quantities due to multiple purposes. When the machine is installed, a lever dial indicator or a dial indicator is needed to straighten and fix the jaw surface, and then the jaw surface is fixed on a machine tool workbench. The material needs to be milled according to the size depth before formal processing so as to avoid loosening and scrapping even material flying in the processing process caused by uneven material clamping position.

The vise has many disadvantages, however, as to the inconvenience of holding the stock material. Firstly, because the inner jaw and the outer jaw of the vice are parallel to each other, for materials with uneven appearance, a clamping position needs to be milled before clamping, otherwise, the materials are easy to loosen and even fly in the processing process, so that the clamping position is dangerous, the working procedures need to be added when the clamping position is milled, the processing time is increased, and the efficiency is not improved; secondly, for parts with different clamping heights, the jaw clamping positions with different heights are usually required to be processed, so that the workload of machine adjusting preparation is increased, and the efficiency is low; and thirdly, as the clamping stroke of the vice is determined by the length of the screw rod, the common vice has larger volume, heavy weight and inflexibility, and the machine is prepared laboriously for the processing condition with more frequent wire replacement.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides a modularization side presss from both sides anchor clamps, can just can directly firmly the centre gripping work piece without milling the position of pressing from both sides, sparingly mill the position of pressing from both sides, reduce process time, switch convenient, use nimble, application scope is extensive.

In order to achieve the above object, the technical solution of the present invention is:

a modular side clamp fixture, comprising: the device comprises a bottom plate, a fixed stop block, a tensioning block, a locking block and a side limit block; the bottom plate is provided with a locking groove, a fixing groove and a positioning groove, the locking grooves transversely penetrate through the bottom plate side by side, the fixing groove, the positioning groove and the locking groove are arranged in a crossed manner, and the fixing groove and the positioning groove are communicated with the locking groove; the fixed stop block is arranged in the fixed groove and is fixedly connected with the bottom plate; the tensioning block is arranged in the positioning groove, the locking block is arranged in the locking groove, and the locking block moves in the locking groove; a first through hole is formed in the locking block, a second through hole is formed in the tensioning block, the locking block is connected with the tensioning block through a locking screw, and the locking screw penetrates through the locking block and extends into the positioning block; the side limiting block is arranged on the side face of the bottom plate and is fixedly connected with the bottom plate; the upper surfaces of the fixed stop block, the locking block and the side limit block are all higher than the upper surface of the bottom plate.

Preferably, the surfaces of the fixed stop block and the locking block, which are contacted with the workpiece, are both arranged to be saw-toothed.

Preferably, the vertical section of the locking groove is in an inverted T shape, and the shape of the locking block is matched with that of the locking groove.

Preferably, the positioning grooves on the same locking groove are arranged side by side.

Preferably, the positioning grooves are arranged on the wall plate in a matrix.

Preferably, the positioning groove and the fixing groove on the same locking groove are parallel to each other.

Preferably, the side limiting block is fixedly connected with the bottom plate through a side screw.

Preferably, the side limiting block is provided with a waist-shaped through hole, and the side screw is connected with the bottom plate through the waist-shaped through hole.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model has the following beneficial effect:

the modular side clamping fixture is characterized in that a workpiece to be machined is placed on the upper surface of the fixture, the workpiece is pushed forwards to abut against the fixed stop block and abut against the side limit block leftwards, then a screw on the locking block is screwed, and the locking block is pushed to clamp the workpiece forwards. The clamp can directly and firmly clamp the workpiece without milling the clamping position, thereby saving the milling clamping position and reducing the processing time; and each subassembly of anchor clamps can both change different specifications according to actual need, and it is convenient to switch, use nimble, application scope is extensive.

Drawings

Fig. 1 is a schematic structural view of the modular side-clamping fixture of the present invention.

Fig. 2 is an exploded view of the modular side clamp of the present invention.

Fig. 3 is a schematic structural view of a fixed stop block in the modular side-clamping fixture of the present invention.

Fig. 4 is a schematic structural diagram of a locking block in the modular side-clamping fixture of the present invention.

Description of reference numerals:

the device comprises a bottom plate 1, a locking groove 11, a fixing groove 12, a positioning groove 13, a fixing stop block 2, a sawtooth structure 21, a tensioning block 3, a locking block 4, a side limit block 5, a positioning pin 6, an auxiliary workbench 7 and a workpiece 8.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Referring to the drawings, a modular side clamp fixture, comprising: bottom plate 1, fixed dog 2, taut piece 3, latch segment 4 and side stopper 5. Be provided with locking groove 11, fixed slot 12 and constant head tank 13 on the bottom plate 1, locking groove 11 transversely runs through bottom plate 1 side by side, and fixed slot 12 and constant head tank 13 set up with locking groove 11 alternately, and fixed slot 12 and constant head tank 13 are linked together with locking groove 11. The locking groove 11, the fixing groove 12 and the positioning groove 13 are used for positioning the locking block 4, the fixing stop block 2 and the tensioning block 3 respectively. The vertical section of the locking groove 11 is in an inverted T shape, and the shape of the locking block 4 is matched with that of the locking groove 11, namely the vertical section of the locking block 4 is also in an inverted T shape.

The positioning grooves 13 located in the same locking groove 11 are arranged side by side, the positioning grooves 13 are arranged in a matrix mode on the wall plate, a plurality of positioning fixing grooves 12 and positioning grooves 13 are arranged, and therefore the clamp can be suitable for workpieces 8 of different sizes. The positioning groove 13 and the fixing groove 12 on the same locking groove 11 are parallel to each other, which is beneficial to the parallel of the stress surfaces on both sides of the workpiece 8.

The fixed stop block 2 is arranged in the fixed groove 12, and the fixed stop block 2 is fixedly connected with the bottom plate 1 through a fixed screw. The tensioning block 3 is arranged in the positioning groove 13, the axis of the tensioning block 3 coincides with the axis of the locking groove 11, and the tensioning block 3 is placed in the positioning grooves 13 at different positions according to the actual requirement of the workpiece 8 to be processed. The locking block 4 is arranged in the locking groove 11, and the locking block 4 moves in the locking groove 11. The position of the fixed stop block 2 in the bottom plate 1 is fixed, the position of the tensioning block 3 in the bottom plate 1 is variable, the tensioning block 3 is placed in different positioning grooves 13 according to the size of an actual workpiece 8 to be processed, and the position of the locking block 4 is changed along with the change of the position of the tensioning block 3.

Be provided with first through-hole in the latch segment 4, be provided with the second through-hole in the taut piece 3, latch segment 4 passes through locking screw with taut piece 3 and is connected, and locking screw passes latch segment 4 and stretches into the location. Because its position is fixed after tensioning block 3 places in a certain constant head tank 13, adjust the distance size between latch segment 4 and the tensioning block 3 through the precession back-out of locking screw to the realization treats the centre gripping of processing work piece 8 and loosens.

The side limit block 5 is arranged on the side face of the bottom plate 1, and the side limit block 5 is fixedly connected with the bottom plate 1. The side limit block 5 is fixedly connected with the bottom plate 1 through a side screw. The side limit block 5 is provided with a waist-shaped through hole, and the side screw is connected with the bottom plate 1 through the waist-shaped through hole.

The upper surfaces of the fixed stop block 2, the locking block 4 and the side limit block 5 are all higher than the upper surface of the bottom plate 1. The part of the fixed stop block 2, the locking block 4 and the side limit block 5 higher than the bottom plate 1 forms a positioning space, the workpiece 8 to be processed is placed in the positioning space, and the fixed stop block 2, the locking block 4 and the side limit block 5 jointly act to limit three surfaces of the workpiece 8 to be processed.

The surfaces of the fixed stop block 2 and the locking block 4, which are contacted with the workpiece 8, are both arranged to be saw-toothed. That is, the clamping surfaces on the fixed stop block 2 and the locking block 4 are designed into a sectional type sawtooth structure 21, so that large-area contact is avoided, and the sawtooth can firmly lock the material.

In the actual processing process, a fixed stop block 2 with a proper specification is selected according to actual needs to be installed in a front fixing groove 12 on a bottom plate 1, the bottom of the fixed stop block is positioned by a positioning pin 6, and the positioning pin 6 simultaneously plays a role in strengthening the longitudinal stress of the fixed stop block 2; each fixed stop 2 is locked and fixed by 2M 8 socket head cap screws. 2M 8 tensioning blocks 3 are arranged in the positioning grooves 13 on the clamping grooves, and the upper surfaces of the tensioning blocks 3 are lower than the upper surface of the bottom plate 1, so that the tensioning blocks 3 can be prevented from being forced to float upwards to interfere with the processed parts.

The method comprises the following steps of taking 2 locking blocks 4 with specifications corresponding to fixed stoppers 2, placing the locking blocks from the opening ends of clamping grooves, penetrating a first through hole in the middle of each locking block 4 by using an M8 locking screw, screwing the locking screws into second through holes in the middle of each tensioning block 3, and enabling the locking blocks 4 to longitudinally move in the clamping grooves by screwing the locking screws, so that the clamping and loosening purposes are achieved. The side limit block 5 is arranged on the side of the clamp and is locked by a side screw, the side limit block 5 is higher than the bottom plate 1, and the highest point of the side limit block 5 cannot be higher than the upper surface of the fixed stop block 2 so as to avoid interference.

After the assembly of the components of the fixture is completed, the fixture is placed on the machine tool auxiliary worktable 7 as a whole. 2 positioning pins 6 with the diameter of 6g6-L20 are inserted into designated holes on a machine tool auxiliary worktable 7, and then the pins corresponding to the pin holes on the bottom surface of the clamp are positioned on the machine tool auxiliary worktable 7 and are locked by 4M 10 screws. Because the clamp is directly positioned by the positioning pin 6, the clamp can be used after being installed, and the conventional watch scanning correction action is avoided.

A workpiece 8 to be machined is placed on the clamp, the workpiece forward abuts against the fixed stop block 2, the workpiece leftward abuts against the side limit block 5, and then a locking screw on the locking block 4 is screwed to push the locking block 4 to clamp the workpiece 8 forward. Because the two fixed stoppers 2 at the inner side are separated and the sawteeth on the two stoppers are coplanar, the parts are contacted at two points rather than the whole material surface at the inner side, and the unstable contact of the salient points caused by the uneven appearance of the materials is avoided. Meanwhile, the locking blocks 4 on the outer side are independently movable, the longitudinal final position of each locking block 4 is determined according to the convex-concave height of the material surface of the clamping position, and the two locking blocks 4 can independently and firmly clamp the material no matter whether the two ends of the material are coplanar or not.

Considering that the clamped part material may be aluminum alloy or steel, the locking block 4 and the fixed stop block 2 are made of die steel, quenching heat treatment is carried out, the hardness of the locking block reaches HRC 55-60, sharp salient points and sharp edges are removed, and the service life and the reliability are greatly improved.

The height of the clamp main body is controlled and processed according to the tolerance of +/-0.02 mm, and a plurality of inverted T-shaped grooves are formed in each clamp bottom plate 1. When in use, the two proper clamping grooves can be selected to be combined and clamped according to the size of the workpiece 8 to be processed. When the workpiece 8 is long, two or more clamps of the same type can be combined in parallel, so that the clamps can clamp parts longer than the clamps, the function and application range of a single clamp can be extended after combination, and the use is more flexible and convenient.

The above is only the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.

Claims

1. A modular side clamp fixture, comprising: the device comprises a bottom plate, a fixed stop block, a tensioning block, a locking block and a side limit block; the bottom plate is provided with a locking groove, a fixing groove and a positioning groove, the locking grooves transversely penetrate through the bottom plate side by side, the fixing groove, the positioning groove and the locking groove are arranged in a crossed manner, and the fixing groove and the positioning groove are communicated with the locking groove; the fixed stop block is arranged in the fixed groove and is fixedly connected with the bottom plate; the tensioning block is arranged in the positioning groove, the locking block is arranged in the locking groove, and the locking block moves in the locking groove; a first through hole is formed in the locking block, a second through hole is formed in the tensioning block, the locking block is connected with the tensioning block through a locking screw, and the locking screw penetrates through the locking block and extends into the tensioning block; the side limiting block is arranged on the side face of the bottom plate and is fixedly connected with the bottom plate; the upper surfaces of the fixed stop block, the locking block and the side limit block are all higher than the upper surface of the bottom plate.

2. The modular side clamp of claim 1, wherein: the surfaces of the fixed stop block and the locking block, which are contacted with the workpiece, are both arranged to be saw-toothed.

3. The modular side clamp of claim 1, wherein: the vertical section of the locking groove is in an inverted T shape, and the shape of the locking block is matched with that of the locking groove.

4. The modular side clamp of claim 1, wherein: the positioning grooves on the same locking groove are arranged side by side.

5. The modular side clamp of claim 1, wherein: the positioning grooves are arranged on the wall plate in a matrix manner.

6. The modular side clamp of claim 1, wherein: the positioning groove and the fixing groove which are positioned on the same locking groove are parallel to each other.

7. The modular side clamp of claim 1, wherein: the side limit block is fixedly connected with the bottom plate through a side screw.

8. The modular side clamp of claim 7, wherein: the side limit block is provided with a waist-shaped through hole, and the side screw is connected with the bottom plate through the waist-shaped through hole.