Semi-universal vacuum clamp capable of milling thoroughly

Abstract

The utility model relates to the field of machining, in particular to a semi-universal vacuum clamp capable of milling thoroughly. The utility model provides a semi-general through milling vacuum fixture, which comprises two support plates, a fixture bottom plate, hand-push valves, a fixture panel, a plurality of positioning nails and the like, the fixture bottom plate is mounted on the upper sides of the two support plates, the hand-push valves are mounted on the front side of the fixture bottom plate in a bilateral symmetry manner, and the plurality of positioning nails are inserted into the fixture bottom plate. A clamp panel is arranged on the upper side of the clamp bottom plate, and a plurality of positioning nails are inserted into the clamp panel. A plastic film is attached to the lower face of the front face of the blank and the lower face of the back face of the blank before machining, the clamp is formed by stacking three layers when working, the first layer is the blank, the second layer is the plastic film, the third layer is the clamp, if the blank needs to be thoroughly milled during machining, a cutter can penetrate through the first layer and touch the second layer, but the surface of a clamp panel of the third layer cannot be touched by the cutter, and therefore the cutter cannot be damaged. The surface of the clamp panel can be prevented from being touched and damaged by a cutter, so that the integrity and functionality of the clamp panel are kept.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical processing field especially, relates to a half general purpose vacuum fixture that can mill through. BACKGROUND

[0002] The half general purpose vacuum fixture that can mill through is a kind of device in the field of mechanical processing, especially for the device when the workpiece surface of needing high precision and flatness is handled.This fixture uses vacuum adsorption force to fix workpiece, to allow accurate operation to workpiece in the processing process, without using traditional mechanical clamping mode, this can avoid the deformation or damage of workpiece due to clamping force.

[0003] In modern manufacturing industry, vacuum fixture is widely used in the fixation and processing of workpiece, especially in the field of high-precision processing, however, most of the vacuum fixtures on the market will cause the actual contact between the cutter and the surface of the fixture after the workpiece is milled through, resulting in a small part of the surface of the fixture being cut off, not only damaging the surface of the vacuum fixture, but also introducing errors in the subsequent processing process, and after each processing is completed, the surface of the vacuum fixture will leave fine cutting marks, affecting the flatness and precision of the workpiece.

[0004] In view of the above problems, a half general purpose vacuum fixture that can mill through needs to be designed. CONTENT OF THE UTILITY MODEL

[0005] In order to overcome the shortcoming that the cutter will actually contact the surface of the fixture, resulting in a small part of the surface of the fixture being cut off, the utility model provides a half general purpose vacuum fixture that can mill through.

[0006] The technical scheme of the utility model is: a half general purpose vacuum fixture that can mill through, comprising a support plate, a fixture bottom plate, a hand push valve, a fixture panel, positioning nails, a plastic film, a blank front surface and a blank back surface, the support plate is two, the upper side of the two support plates is provided with the fixture bottom plate, the left and right symmetrical hand push valves are installed on the front side of the fixture bottom plate, a plurality of positioning nails are inserted on the fixture bottom plate, the fixture panel is arranged on the upper side of the fixture bottom plate, a plurality of positioning nails are also inserted on the fixture panel, the left and right symmetrical plastic films are pasted in the fixture panel, the blank back surface is placed on the left side of the fixture panel, and the blank front surface is placed on the right side of the fixture panel.

[0007] As an improvement of the above scheme, the two plastic films are attached to the inside of the placement groove on the surface of the fixture panel.

[0008] As an improvement of the above scheme, a plurality of positioning holes are formed on the fixture bottom plate and the fixture panel.

[0009] As an improvement of the above scheme, the plastic film is made of composite material.

[0010] As an improvement of the above scheme, the plurality of positioning nails are evenly spaced.

[0011] As an improvement of the above-mentioned scheme, a plurality of adsorption holes are evenly spaced on the clamp panel.

[0012] The utility model discloses the beneficial effect has: before processing, the blank front and blank reverse lower surface all stick a plastic film, the clamp is three layers stack together when working, the first layer is blank, the second layer is plastic film, the third layer is clamp, if want to mill through blank when processing, the cutter will pass through the first layer, touch the second layer, but the clamp panel surface of 3 layers will not be touched by cutter, therefore, the clamp panel surface can avoid being touched and destroyed by cutter, thereby keep its integrity and functionality. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.

[0014] Figure 2 It is the explosion drawing of the utility model clamp base plate, clamp panel and plastic film.

[0015] Marked label name in drawing: 1, support plate, 2, clamp base plate, 3, hand push valve, 4, clamp panel, 5, positioning nail, 6, plastic film, 7, blank front, 71, blank reverse. DETAILED DESCRIPTION

[0016] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor are within the protection scope of the utility model.

[0017] Embodiment: a semi-universal can mill through vacuum clamp, such as Figure 1 and Figure 2As shown, it comprises support plate 1, clamp bottom plate 2, hand push valve 3, clamp panel 4, positioning nail 5, plastic film 6, blank front surface 7 and blank back surface 71, the support plate 1 is two, the two support plates 1 are provided with clamp bottom plate 2 on the upside, the left and right symmetrical hand push valve 3 is installed on the front side of the clamp bottom plate 2, the hand push valve 3 is used for manual operation control some functions of the clamp, a plurality of positioning nails 5 are inserted on the clamp bottom plate 2, the plurality of positioning nails 5 are evenly spaced, the clamp bottom plate 2 is provided with clamp panel 4 on the upside, a plurality of positioning nails 5 are also inserted on the clamp panel 4, a plurality of adsorption holes are evenly spaced on the clamp panel 4, a plurality of adsorption holes are evenly distributed on the clamp panel 4 according to a certain pitch and line spacing, forming a regular grid, this arrangement can ensure that the blank front surface 7 and the blank back surface 71 or small parts can be uniformly supported and fixed at each position, a plurality of positioning holes are provided on the clamp bottom plate 2 and the clamp panel 4, the left and right symmetrical plastic film 6 is pasted in the inside of the clamp panel 4, the plastic film 6 can protect the surface of the clamp panel 4, the two plastic films 6 are attached to the inside of the placement groove on the surface of the clamp panel 4, the plastic film 6 is made of composite material, has good puncture resistance and wear resistance, the blank back surface 71 is placed on the left side of the clamp panel 4, the blank front surface 7 is placed on the right side of the clamp panel 4.

[0018] A piece of plastic film 6 is pasted on the blank front surface 7 and the blank back surface 71 before processing, the clamp is three layers stacked together when working, the first layer is the blank, the second layer is the plastic film 6, and the third layer is the clamp, when processing, if the blank front surface 7 is to be milled through, the cutter will pass through the first layer and touch the second layer, but the surface of the third layer of the clamp panel 4 will not be touched by the cutter, because the surface of the clamp panel 4 is not damaged, after the first piece of blank front surface 7 is processed, the operation of the first piece of blank front surface 7 can be repeated to realize repeated processing, while processing, if the blank back surface 71 is to be milled through, the above operation can be repeated, without repairing the clamp in the process, the positioning holes are designed on the corner of the plate-shaped blank, cooperating with the clamp positioning nail 5, without using the structure on the part to position, all the styles can share the positioning structure, the positioning accuracy reaches the precision positioning level, the parts with small surface area can also be milled through without automatically separating from the clamp panel 4, although the small parts are small, they are all attached to the second layer of plastic film, the plastic film and the clamp panel 4 always maintain full-area contact, the clamp always maintains stable and maximum suction working condition, when milling through the workpiece, the cutter only touches the plastic film but does not mill through the second layer of plastic film, therefore, the clamp will not leak, and the parts will not automatically fall off.

[0019] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that changes can be made in these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A semi- universal millable vacuum fixture, characterized by, The utility model relates to a kind of sheet metal blanking device, including support plate (1), clamp bottom plate (2), hand push valve (3), clamp panel (4), positioning nail (5), plastic film (6), blank front (7) and blank back (71), support plate (1) is two, two support plate (1) upper side is equipped with clamp bottom plate (2), the left and right symmetry of clamp bottom plate (2) front side is equipped with hand push valve (3), clamp bottom plate (2) is inserted with multiple positioning nail (5) on, clamp bottom plate (2) upper side is equipped with clamp panel (4), clamp panel (4) is also inserted with multiple positioning nail (5) on, clamp panel (4) inside left and right symmetry is pasted with plastic film (6), clamp panel (4) upper left side is placed with blank back (71), clamp panel (4) upper right side places blank front (7).

2. A semi-universal millable vacuum fixture as claimed in claim 1, wherein, Two plastic films (6) are attached to the placement grooves on the surface of the clamp panel (4).

3. A semi-universal millable vacuum fixture as claimed in claim 2, wherein, Multiple positioning holes are formed on the clamp bottom plate (2) and the clamp panel (4).

4. A semi-universal millable vacuum fixture as claimed in claim 3, wherein, The plastic film (6) is made of composite material.

5. A semi-universal millable vacuum fixture as claimed in claim 4, wherein, The multiple positioning nails (5) are evenly spaced.

6. A semi-universal millable vacuum fixture as claimed in claim 5, wherein, Multiple suction holes are evenly spaced on the clamp panel (4).

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