CN212384679U

CN212384679U - Machining reverse side location clamping device

Info

Publication number: CN212384679U
Application number: CN202021159939.XU
Authority: CN
Inventors: 李志强
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2021-01-22
Anticipated expiration: 2030-06-22

Abstract

The utility model discloses a machining reverse side location clamping device, the locating plate comprises a positioning plate, the riser of perpendicular setting is installed to the lower extreme symmetry of locating plate, the centre of locating plate is equipped with a square mouth, all is equipped with the spout more than on the both sides face of square mouth, and equal movable mounting has the slider in the spout, and the centre of slider all vertically is equipped with the screw hole, and equal threaded connection has the screw rod in the screw hole, all installs the depression bar between the horizontal corresponding slider. The utility model discloses simple structure can be according to the distance between the width adjustment depression bar of work piece for the bottom surface of depression bar offsets with workpiece surface's both sides, and the direct exposure of large tracts of land in the middle of its work piece is in the external world, makes and to carry out arbitrary processing, and the while is through the great increase firmness of depression bar of stiffener, has avoided middle bending.

Description

Machining reverse side location clamping device

Technical Field

The utility model relates to a machining technical field, concretely relates to machining reverse side location clamping device.

Background

Machining is the basis of industrial production; the mechanical processing comprises turning, milling, drilling and other processing; in milling, the problem of positioning surface selection is usually considered; at present, a plurality of common clamping modes for zero milling processing adopt plain jaw clamping, upward pressing or vacuum suction, so that a workpiece is positioned and clamped, and when a positioning reference surface and a processing surface of some parts are on the same side, the parts cannot be processed by a one-step processing forming process; therefore, the reference surface of the machined surface cannot be selected from the reference surface on the same side as the machined surface by adopting a conventional clamping mode, so that the accuracy of the dimension drawing position of the machined part is inaccurate, and the part is easily scrapped.

Patent CN206356962U discloses a reverse side location clamping device of machining, includes: the mounting base plate, the vertical plate, the positioning plate, the guide pillar, the sliding plate, the pressing mechanism and the air cylinder. The pressing mechanism slides out along the sliding groove, so that the workpiece to be machined can be arranged on the pressing mechanism, the positioning frame is used for positioning the workpiece, and the pressing mechanism is pushed back to the original position; the cylinder pushes the sliding plate to move upwards, so that the pressing mechanism presses the workpiece to the bottom end of the positioning plate, and the workpiece is positioned by the top surface of the workpiece; during machining, the machined cutter can penetrate through the machining clearance hole, so that the machining of the workpiece can be completed; therefore, the traditional clamping mode is replaced, and the machining precision of the parts is guaranteed.

However, the above patent can only process the surface of the workpiece through the processing clearance hole, the size of the processing clearance hole is small, so that large-scale processing cannot be performed, and meanwhile, the positions of the processing clearance hole are fixed, so that processing at any position cannot be performed, and work is affected.

Disclosure of Invention

The utility model aims to solve the technical problem that a machining reverse side location clamping device is provided to solve the problem that proposes in the above-mentioned background art.

The utility model discloses a realize through following technical scheme: the utility model provides a machining reverse side location clamping device, includes the locating plate, the riser of perpendicular setting is installed to the lower extreme symmetry of locating plate, the centre of locating plate is equipped with a square mouth, all be equipped with the spout more than on the both sides face of square mouth, equal movable mounting has the slider in the spout, the centre of slider all vertically is equipped with the screw hole, equal threaded connection has the screw rod in the screw hole, equal embedded first bearing of installing on the opposite face of vertical spout, all be equipped with the shaft hole with outside intercommunication on the opposite face of vertical spout, all install the second bearing in the shaft hole, screw rod one end is all installed in the inner ring of first bearing, the other end all passes the inner ring and the shaft hole of second bearing and extends to the external world, and all install the hand wheel, all install the depression bar between the.

As the preferred technical scheme, more than one reinforcing rod is arranged on the opposite surface of the pressure rod, positioning holes are arranged at the positions, right opposite to the reinforcing rods, of the positioning plates, and one end of each reinforcing rod penetrates through the positioning holes and extends to the outside.

As the preferred technical scheme, the vertical sections of the sliding chute and the sliding block are both arranged in a dovetail structure, and the sliding chute and the sliding block are in interference connection.

As the preferred technical scheme, the vertical section of the pressure lever is arranged in a square structure, and the top surface and the bottom surface of the pressure lever are arranged in parallel and level with the top surface and the bottom surface of the positioning plate.

As preferred technical scheme, install the scale on the left surface of locating plate, the pointer is installed to the left side of depression bar, and pointer one end bending extension reaches the locating plate upper end to with scale parallel arrangement.

The utility model has the advantages that: the utility model discloses simple structure can be according to the distance between the width adjustment depression bar of work piece for the bottom surface of depression bar offsets with workpiece surface's both sides, and the direct exposure of large tracts of land in the middle of its work piece is in the external world, makes and to carry out arbitrary processing, and the while is through the great increase firmness of depression bar of stiffener, has avoided middle bending.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a front view of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "disposed" are to be construed broadly, and may for example be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and fig. 2, the back positioning and clamping device for machining of the utility model comprises a positioning plate 1, the lower end of the positioning plate 1 is symmetrically provided with vertical plates 13 which are vertically arranged, the middle of the positioning plate 1 is provided with a square opening 11, two side surfaces of the square opening 11 are respectively provided with more than one sliding chute 7, sliding blocks 8 are movably arranged in the sliding chutes 7, the middle of each sliding block 8 is longitudinally provided with a screw hole, each screw hole is in threaded connection with a screw rod 5, the opposite surfaces of the longitudinal sliding chutes 7 are respectively provided with a first bearing 9 in an embedded manner, the opposite surfaces of the longitudinal sliding chutes 7 are respectively provided with a shaft hole 12 communicated with the outside, the shaft holes 12 are respectively provided with a second bearing 4, one end of each screw rod 5 is arranged in an inner ring of the first bearing 9, the other ends of the two sliding blocks penetrate through an inner ring of the second bearing 4 and a shaft hole 12 and extend to the outside, hand wheels 6 are installed on the two sliding blocks, and pressing rods 2 are installed between the sliding blocks 8 which correspond to each other in the transverse direction.

In this embodiment, all install more than one stiffener 3 on the opposite face of depression bar 2, locating plate 1 is just all being equipped with the locating hole to stiffener 3 department, and 3 one ends of stiffener all pass the locating hole and extend to the external world, through the great increase of stiffener fastness in the middle of the depression bar, have avoided the bending in the middle of the depression bar.

In this embodiment, the vertical cross-sections of spout 7 and slider 8 all are the setting of dovetail structure, and equal interference connection has avoided the slider to break away from the spout between spout 7 and the slider 8.

In this embodiment, the vertical cross-section of depression bar 2 is square structure setting, and the top surface and the bottom surface of depression bar 2 all set up with the top surface and the bottom surface parallel and level of locating plate 1, have avoided unsmooth.

In this embodiment, a scale 15 is installed on the surface of the left side of the positioning plate 1, a pointer 14 is installed on the left side of the pressure lever 2, and one end of the pointer 14 extends to the upper end of the positioning plate 1 in a bending manner and is parallel to the scale 15.

When the work piece presss from both sides tightly, earlier according to the distance between the width adjustment depression bar of work piece, during the adjustment, the hand wheel rotates, the rotation of hand wheel has driven the screw rod, the rotation of screw rod has driven the slider, make the slider along the fore-and-aft removal of spout, the removal of slider has driven the depression bar, the removal of depression bar has driven the pointer, make the pointer can remove along the scale, can be clear and definite know the distance between two depression bars through the scale, until making the distance between the depression bar slightly less than the width of work piece, after jacking the work piece through the cylinder, the machined surface of work piece can support on the bottom surface of depression bar, the fixed of work piece has been accomplished, the large tracts of land in the middle of the work piece is then exposed in the external world through square mouth.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. The utility model provides a machining reverse side location clamping device which characterized in that: comprises a positioning plate (1), wherein vertical plates (13) which are vertically arranged are symmetrically arranged at the lower end of the positioning plate (1), a square opening (11) is arranged in the middle of the positioning plate (1), more than one sliding groove (7) is respectively arranged on two side faces of the square opening (11), a sliding block (8) is movably arranged in each sliding groove (7), screw holes are longitudinally arranged in the middle of each sliding block (8), screw rods (5) are uniformly and threadedly connected in the screw holes, first bearings (9) are uniformly and embedded in opposite faces of the longitudinal sliding grooves (7), shaft holes (12) communicated with the outside are respectively arranged in opposite faces of the longitudinal sliding grooves (7), second bearings (4) are respectively arranged in the shaft holes (12), one end of each screw rod (5) is arranged in an inner ring of each first bearing (9), the other end of each screw rod penetrates through the inner ring of each second bearing (4) and the shaft hole (12) to extend to the outside, and compression bars (2) are arranged between the corresponding transverse sliding blocks (8).

2. The machining reverse side positioning and clamping device as claimed in claim 1, wherein: more than one reinforcing rod (3) is installed on the opposite surface of the pressure rod (2), positioning holes are formed in the positions, right opposite to the reinforcing rods (3), of the positioning plates (1), and one end of each reinforcing rod (3) penetrates through the positioning holes to extend to the outside.

3. The machining reverse side positioning and clamping device as claimed in claim 1, wherein: the vertical sections of the sliding groove (7) and the sliding block (8) are arranged in a dovetail structure, and the sliding groove (7) and the sliding block (8) are in interference connection.

4. The machining reverse side positioning and clamping device as claimed in claim 1, wherein: the vertical section of the pressure lever (2) is arranged in a square structure, and the top surface and the bottom surface of the pressure lever (2) are arranged in parallel and level with the top surface and the bottom surface of the positioning plate (1).

5. The machining reverse side positioning and clamping device as claimed in claim 1, wherein: the scale (15) is installed on the surface of the left side of the positioning plate (1), the pointer (14) is installed on the left side of the pressure rod (2), and one end of the pointer (14) bends and extends to the upper end of the positioning plate (1) and is parallel to the scale (15).