A kind of flexible vacuum fixture
Technical field
It the utility model is related to clamp art, more particularly to a kind of flexible vacuum fixture.
Background technology
Aeronautical product is in the majority with thin-walled, aluminum alloy material, and structural rigidity deficiency, dimension precision requirement is high, common processing
Method can not meet to produce needs, therefore people have invented vacuum adsorption clamping device, are added using numerical control the characteristics of aeronautical product
Man-hour makes whole part all be adsorbed on clamp body, so as to the processing dimension stablized, ensure that processing precision of products.But
Such a mode requires that each product will have a set of special vacuum frock, causes processing cost to be significantly increased.This practicality is new
Type is researched and developed on the basis of traditional vacuum fixture, by device, multiple product can be made to be used in conjunction with a fixture, from
And processing cost is greatly lowered.
Utility model content
The utility model overcomes above-mentioned the deficiencies in the prior art, there is provided a kind of flexible vacuum fixture.
Utility model technical scheme:
A kind of flexible vacuum fixture, including:Vacuum unit, clamp body, sealing plate and sealing-plug,
The vacuum unit of multiple rectangular arrangements is set on the clamp body, and the vacuum unit includes:Sealing rubber ring,
Cross air channel, passage and sealing hole, clamp body upper surface offer cross air channel, and cross air channel outer ring is set
Circular groove is equipped with, sealing rubber ring is embedded in circular groove, and sealing hole, sealing hole lower section are provided with below cross air channel
It is provided with passage;
Groove is set below the clamp body, sealing plate is provided with groove, clamp body constitutes vacuum chamber with sealing plate,
Passage lower end is connected with vacuum chamber;
The clamp body side is provided with air channel, and air channel one end is connected with vacuum chamber;
Dismountable sealing-plug is provided with the sealing hole of the vacuum unit.
Further, the air channel other end is connected with vavuum pump.
Further, the sealing plate is sealed with clamp body by caulking gum.
Further, the sealing-plug upper end is provided with inner hexagonal hole.
The utility model has the advantages that for prior art:It is special according to the profile of product in actual use
Point, selection are shut or opened some vacuum units, so as to realize that multiple product shares a frock, effectively reduce enterprise
Industry production cost.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the profile of A-A in Fig. 1;
Fig. 3 is the partial enlarged drawing of C in Fig. 2;
Fig. 4 is the partial enlarged drawing of B in Fig. 1.
Embodiment
The utility model is described in detail below with reference to accompanying drawing.
A kind of flexible vacuum fixture, including:Air channel 1, vacuum unit 2, clamp body 3, sealing plate 4 and sealing-plug 6,
The vacuum unit 2 of multiple rectangular arrangements is set on the clamp body 3, and the vacuum unit 2 includes:Caulking gum
Circle 2-1, cross air channel 2-2, passage 2-3 and sealing hole 2-4, the upper surface of clamp body 3 offer cross air channel 2-
2, cross air channel 2-2 outer rings are provided with circular groove, and sealing rubber ring 2-1 is embedded in circular groove, cross ventilation
Sealing hole 2-4 is provided with below groove 2-2, passage 2-3 is provided with below sealing hole 2-4;
The lower section of clamp body 3 sets groove, and sealing plate 4 is provided with groove, and clamp body 3 constitutes very with sealing plate 4
Empty room, passage 2-3 lower ends are connected with vacuum chamber;
The side of clamp body 3 is provided with air channel 1, and the one end of air channel 1 is connected with vacuum chamber;
Dismountable sealing-plug 6 is provided with the sealing hole 2-4 of the vacuum unit 2.
The other end of air channel 1 is connected with vavuum pump.The sealing plate 4 is carried out close with clamp body 3 by caulking gum 5
Envelope.The upper end of sealing-plug 6 is provided with inner hexagonal hole.
Some vacuum units 2 are arranged as required in the upper surface of fixture, the outer ring of vacuum unit 2 is caulking gum, to
Interior is cross air channel 2-2, and center is passage 2-3, and sets sealing-plug 6, and sealing-plug 6 can be closed, can beaten as needed
Open;Air drain 1 is opened in clamp back surface, each vacuum unit 2 is connected, is finally sealed using monoblock caulking gum 5, use is close
Shrouding 4 compresses, and realizes sealing function.