CN217223317U - Pneumatic clamp for clamping workpiece in stamping manner - Google Patents

Abstract

The utility model provides a work piece punching press presss from both sides tight pneumatic fixture, including the bottom plate that is fixed in on the punch press workstation, bottom plate upper plate face one end is fixed with the telescoping cylinder, and the bottom plate upper plate face other end is equipped with fixed die holder, be equipped with the movable die holder with bottom plate sliding connection between fixed die holder and the telescoping cylinder, the piston rod and the movable die holder fixed connection of telescoping cylinder, all make the die cavity that the notch set up in opposite directions on the side of fixed die holder and movable die holder opposite side, two parts of two lamella formula anchor clamps are the adaptation respectively in the die cavity of corresponding side, and after towards fixed die holder or the backward movement, realize the clamp of two lamella formula anchor clamps to its inside work piece or loosen. The utility model provides a work piece stamping process the big and poor problem of centre gripping position uniformity of the centre gripping degree of difficulty, improved the position precision of work piece centre gripping, the work piece processing uniformity is good, and the work piece processing of different models only needs to change the two lamella formula anchor clamps that correspond with the work piece, alright carry out the centre gripping of high accuracy to different model work pieces.

Description

Pneumatic clamp for clamping workpiece in stamping manner

Technical Field

The utility model belongs to the technical field of frock clamp, concretely relates to work piece punching press is pressed from both sides tightly uses pneumatic fixture.

Background

The fixture is used as an important basic device in manufacturing enterprises and is widely applied to manufacturing processes of processing, detection, equipment and the like. At present, in the process of punch forming of a workpiece, a traditional method is to clamp and fix the lower end of the workpiece by using a clamp, then fix the clamp holding the workpiece on a workbench of a punch press, and after the position of the clamp is adjusted, the workpiece can be subjected to punch forming, but the processing method has the following problems: firstly, the clamp needs to be detached from the workbench of the punch press every time when the workpiece is replaced, the stamped workpiece is detached, and the next workpiece is clamped, so that the detaching process is very troublesome every time, and time and labor are wasted; secondly, after the workpiece is replaced each time, the position precision of the clamp on the workbench of the punch press needs to be adjusted, and the position consistency of each workpiece in the stamping process cannot be ensured, so that the processing precision of the workpiece is inconsistent, and therefore, improvement needs to be provided for the problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem: the utility model provides a work piece punching press is tight with pneumatic fixture, through set up the activity die holder with bottom plate sliding connection between the telescoping cylinder that is fixed in bottom plate upper plane both ends and the fixed die holder, and after the flexible die holder is towards fixed die holder or reverse movement by the telescoping cylinder drive, make two parts respectively with the tight or unclamping of two lamella clamps of fixed die holder and activity die holder adaptation to its inside work piece, the problem that the centre gripping degree of difficulty is big and the clamping position uniformity is poor during work piece punching press processing has been solved, the position precision of work piece centre gripping has been improved, the work piece processing uniformity is good, the work piece processing of different models, only need change the two lamella clamps that correspond with the work piece, alright carry out the centre gripping of high accuracy to different models work piece, when the work piece of stamping forming is dismantled, need not to demolish pneumatic fixture, the centre gripping precision of next work piece is effectively guaranteed.

The utility model adopts the technical proposal that: work piece punching press is pressed from both sides and is pressed from both sides tightly pneumatic fixture, including the bottom plate that is fixed in on the punch press workstation, face one end is fixed with the telescoping cylinder on the bottom plate, and the bottom plate upper plate other end is equipped with fixed die holder, be equipped with between fixed die holder and the telescoping cylinder with bottom plate sliding connection's movable die holder, the piston rod and the movable die holder fixed connection of telescoping cylinder, all make the die cavity that the notch set up in opposite directions on the side of fixed die holder and movable die holder opposite side, two parts of two lamella formula anchor clamps are the adaptation respectively in the die cavity of corresponding side to after towards fixed die holder or reverse movement, realize the clamp of two lamella formula anchor clamps to its inside work piece tightly or loosen through the telescoping cylinder drive movable die holder.

The dovetail grooves are formed in two side walls of the long side of the bottom plate, the U-shaped long groove is formed in the lower end face of the movable die holder, dovetail sliding tables are formed in two side walls of the U-shaped long groove and are matched in the dovetail grooves of the corresponding sides, and the dovetail sliding tables slide in the dovetail grooves under the stretching of the piston rod of the telescopic cylinder.

The two-piece clamp comprises a first clamp body and a second clamp body, wherein clamp grooves are formed in the side walls of the first clamp body and the second clamp body on opposite sides, the side walls of the first clamp body and the second clamp body on opposite sides are attached to enable the two clamp grooves to be spliced to form a clamping hole matched with the outer contour of a workpiece, and the telescopic cylinder drives the movable die holder to move towards the fixed die holder in the opposite direction or in the opposite direction to enable the two clamp grooves to be spliced or separated, so that the workpiece between the first clamp body and the second clamp body in two pairs is clamped or loosened.

Further, the telescopic cylinder is an electric cylinder, an air cylinder or an oil cylinder.

Furthermore, the fixed die holder and the bottom plate are of an integrated structure, and the upper plane of the bottom plate provided with the telescopic cylinder is lower than the upper plane of the bottom plate at the position of sliding connection with the movable die holder.

The utility model has the advantages compared with the prior art:

1. according to the technical scheme, the movable die holder which is in sliding connection with the bottom plate is arranged between the telescopic cylinder and the fixed die holder which are fixed at two ends of the upper plane of the bottom plate, and the telescopic cylinder drives the movable die holder to move towards the fixed die holder in the opposite direction or in the opposite direction, so that the two parts of the two-piece clamp which is respectively matched with the fixed die holder and the movable die holder clamp or loosen a workpiece inside the two-piece clamp, the problems of high clamping difficulty and poor consistency of clamping positions during workpiece stamping are solved, the position precision of workpiece clamping is improved, and the workpiece processing consistency is good;

2. according to the technical scheme, workpieces of different types are machined, and the workpieces of different types can be clamped at high precision only by replacing the two-piece clamp with the clamping groove matched with the workpieces, so that the use range of workpiece clamping is expanded, and the structure for high-precision clamping of the workpieces is simplified;

3. according to the technical scheme, dovetail sliding tables matched with dovetail grooves in the side walls of the long sides of the bottom plate are machined in the two side walls of the U-shaped long groove in the lower end face of the movable die holder, so that the movable die holder is slidably connected to the bottom plate, and reliable displacement conditions are provided for clamping and loosening a workpiece by the two-petal type clamp;

4. the technical scheme is simple in structure and reasonable in design, the pneumatic clamp does not need to be removed when the punch-formed workpiece is detached, the clamping precision of the next workpiece is effectively guaranteed, and the device has high use value.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the movable die holder of the present invention having a die slot side.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1-2 in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the verb "to comprise a" does not exclude the presence of other, identical elements in a process, method, article or apparatus that comprises a stated element.

The pneumatic clamp for stamping and clamping the workpiece comprises a bottom plate 1 fixed on a workbench of a punch press, wherein one end of the upper plate surface of the bottom plate 1 is fixed with a telescopic cylinder 2, the other end of the upper plate surface of the bottom plate 1 is provided with a fixed die holder 3, a movable die holder 4 in sliding connection with the bottom plate 1 is arranged between the fixed die holder 3 and the telescopic cylinder 2, a piston rod of the telescopic cylinder 2 is fixedly connected with the movable die holder 4, die grooves 5 with opposite notches are formed in the side surfaces of opposite sides of the fixed die holder 3 and the movable die holder 4, two parts of two-petal-type clamps 6 are respectively matched in the die grooves 5 of the corresponding sides, and the two-petal-type clamps 6 clamp or loosen the workpiece inside the two-petal-type clamps 6 after the movable die holder 4 is driven to move towards the fixed die holder 3 in opposite directions or opposite directions by the telescopic cylinder 2; in the structure, the movable die holder 4 which is in sliding connection with the bottom plate 1 is arranged between the telescopic cylinder 2 and the fixed die holder 3 which are fixed at two ends of the upper plane of the bottom plate 1, and the telescopic cylinder 2 drives the movable die holder 4 to move towards the fixed die holder 3 in the opposite direction or the opposite direction, so that the two parts of the two-petal-type clamp 6 which are respectively matched with the fixed die holder 3 and the movable die holder 4 clamp or loosen a workpiece inside the two-petal-type clamp, the problems of high clamping difficulty and poor consistency of clamping positions during workpiece stamping processing are solved, the position precision of workpiece clamping is improved, and the workpiece processing consistency is good;

wherein, the sliding connection structure of the movable die holder 4 on the bottom plate 1 is as follows: dovetail grooves 7 are formed in two side walls of the long side of the bottom plate 1, a U-shaped long groove 8 is formed in the lower end face of the movable die holder 4, dovetail sliding tables 9 are formed in two side walls of the U-shaped long groove 8, the dovetail sliding tables 9 are matched with the dovetail grooves 7 on the corresponding sides, and the dovetail sliding tables 9 slide in the dovetail grooves 7 under the stretching of the piston rod of the telescopic cylinder 2; in the structure, a dovetail sliding table 9 matched with a dovetail groove 7 on the side wall of the long side of the bottom plate 1 is machined on two side walls of a U-shaped long groove 8 on the lower end surface of the movable die holder 4, so that the movable die holder 4 is slidably connected on the bottom plate 1, and reliable displacement conditions are provided for clamping and loosening a workpiece by the two-piece clamp 6;

the two-piece clamp 6 has the following specific structure: the two-piece type clamp 6 comprises a first clamp body 6-1 and a second clamp body 6-2, clamp grooves 6-3 are formed in the side walls of the first clamp body 6-1 and the second clamp body 6-2 on the opposite sides, after the side walls of the first clamp body 6-1 and the second clamp body 6-2 on the opposite sides are attached, the two clamp grooves 6-3 are spliced to form a clamping hole matched with the outer contour of a workpiece, and the telescopic cylinder 2 drives the movable die holder 4 to move towards the fixed die holder 3 in the opposite direction or the reverse direction to splice or separate the two clamp grooves 6-3, so that the first clamp body 6-1 and the second clamp body 6-2 clamp or release the workpiece between the two clamp grooves 6-3; in the structure, workpieces of different types can be clamped with high precision only by replacing the two-petal clamp 6 with the clamping groove 6-3 matched with the workpiece when the workpieces of different types are processed, so that the use range of clamping the workpieces is expanded, and the structure for clamping the workpieces with high precision is simplified; wherein, the depth of the die cavity 5 is slightly less than 0.1mm-0.5mm of the thickness of the first clamp body 6-1 and the second clamp body 6-2, which is beneficial to clamping a workpiece after the first clamp body 6-1 and the second clamp body 6-2 are effectively matched;

the telescopic cylinder 2 is an electric cylinder, an air cylinder or an oil cylinder; specifically, the fixed die holder 3 and the bottom plate 1 are of an integrated structure, and the upper plane of the bottom plate 1 provided with the telescopic cylinder 2 is lower than the upper plane of the bottom plate 1 at the position of sliding connection with the movable die holder 4.

The technical scheme is simple in structure and reasonable in design, the pneumatic clamp does not need to be removed when the punch-formed workpiece is detached, the clamping precision of the next workpiece is effectively guaranteed, and the device has high use value.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (5)

1. Work piece punching press is pressed from both sides and is pressed from both sides pneumatic fixture, its characterized in that: including being fixed in bottom plate (1) on the punch press workstation, face one end is fixed with telescoping cylinder (2) on bottom plate (1), and the bottom plate (1) goes up the face other end and is equipped with fixed die holder (3), be equipped with between fixed die holder (3) and telescoping cylinder (2) with bottom plate (1) sliding connection's movable die holder (4), the piston rod and the movable die holder (4) fixed connection of telescoping cylinder (2), all make die cavity (5) that the notch set up in opposite directions on the side of fixed die holder (3) and movable die holder (4) opposite side, two parts of two lamella formula anchor clamps (6) are adapted respectively in die cavity (5) of corresponding side to through telescoping cylinder (2) drive movable die holder (4) towards fixed die holder (3) after or reverse movement, realize the clamp of two lamella formula anchor clamps (6) to its inside work piece tightly or loosen.

2. The pneumatic jig for press-clamping a workpiece as set forth in claim 1, wherein: all there is dovetail (7) system on two lateral walls on bottom plate (1) long avris, terminal surface system has U type elongated slot (8) under activity die holder (4), all there is forked tail slip table (9) system on U type elongated slot (8) both sides wall, and forked tail slip table (9) adaptation in dovetail (7) of corresponding side to realize dovetail slip table (9) and slide in dovetail (7) under the flexible of telescoping cylinder (2) piston rod.

3. The pneumatic jig for press clamping a workpiece as set forth in claim 1, wherein: the two-piece type clamp (6) comprises a first clamp body (6-1) and a second clamp body (6-2), clamp grooves (6-3) are formed in the side walls of the opposite sides of the first clamp body (6-1) and the second clamp body (6-2), after the side walls of the opposite sides of the first clamp body (6-1) and the second clamp body (6-2) are attached, the two clamp grooves (6-3) are spliced to form clamping holes matched with the outer contour of a workpiece, and the telescopic cylinder (2) drives the movable die holder (4) to move towards the fixed die holder (3) in the opposite direction or the reverse direction to splice or separate the two clamp grooves (6-3), so that the first clamp body (6-1) and the second clamp body (6-2) clamp or loosen the workpiece positioned between the two clamp grooves (6-3).

4. The pneumatic jig for press-clamping a workpiece as set forth in claim 1, wherein: the telescopic cylinder (2) is an electric cylinder or an air cylinder or an oil cylinder.

5. The pneumatic jig for press-clamping a workpiece as set forth in any one of claims 1 to 4, wherein: the fixed die holder (3) and the bottom plate (1) are of an integrated structure, and the upper plane of the bottom plate (1) provided with the telescopic cylinder (2) is lower than the upper plane of the bottom plate (1) at the position in sliding connection with the movable die holder (4).

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