CN212311450U - Skin quick change frock and skin quick change frock system - Google Patents

Abstract

The application discloses covering quick change frock and covering quick change frock system includes: a substrate; the positioning pin is positioned on the back of the substrate and is matched with the zero point clamp for use; the vacuum adsorption areas are arranged on the front side of the substrate and are matched with the skin blank in shape, sealing strips are arranged at the edges of the vacuum adsorption areas, and diversion trenches communicated with a vacuum pump are arranged in the vacuum adsorption areas of the substrate; the threaded holes are arranged on the substrate and correspond to the edge positions of the skin; and the pressing plates are matched with the base plate for use so as to compress the skin, and in a use state, the pressing plates correspond to the edge position of the skin and are fixed on the base plate through screws penetrating through the pressing plates and the corresponding threaded holes. The application provides a covering quick change frock can reduce the clamping time to the covering blank, under the prerequisite of guaranteeing processingquality, improves the utilization ratio and the machining efficiency of lathe.

Description

Skin quick change frock and skin quick change frock system

Technical Field

The application relates to the technical field of skin numerical control machining, in particular to a skin quick-change tool and a skin quick-change tool system.

Background

In the prior art, the material is deformed greatly after the skin is rolled, external force is required to be applied to compress and clamp the skin in the clamping process, the skin needs to be prevented from being scratched and crushed in the clamping process, and the clamping requirement is high, so that a machine tool can be occupied for a long time, and the utilization rate of the machine tool is influenced.

SUMMERY OF THE UTILITY MODEL

Therefore, the skin quick-change tool needs to be improved, and the utilization rate of a machine tool is improved.

The utility model provides a covering quick change frock, includes:

a substrate;

the positioning pin is positioned on the back of the substrate and is matched with the zero point clamp for use;

the vacuum adsorption areas are arranged on the front side of the substrate and are matched with the skin blank in shape, sealing strips are arranged at the edges of the vacuum adsorption areas, and diversion trenches communicated with a vacuum pump are arranged in the vacuum adsorption areas of the substrate;

the threaded holes are arranged on the substrate and correspond to the edge positions of the skin;

and the pressing plates are matched with the base plate for use so as to compress the skin, and in a use state, the pressing plates correspond to the edge position of the skin and are fixed on the base plate through screws penetrating through the pressing plates and the corresponding threaded holes.

Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative being combinable individually for the above general solution or among several alternatives without technical or logical contradictions.

Optionally, the number of the vacuum adsorption regions is at least eight, and the areas and the shapes of the vacuum adsorption regions are not completely the same.

Optionally, each vacuum adsorption area is distributed in the skin blank to avoid all areas of the edge of the skin.

Optionally, all the vacuum adsorption areas are divided into a plurality of groups along the length direction of the skin blank, and each group includes one or two vacuum adsorption areas arranged along the width direction of the skin blank.

Optionally, a sealing groove sealed in the circumferential direction is formed in the front face of the substrate, and the sealing strip is embedded in the sealing groove.

Optionally, a step corresponding to the thickness of the skin is arranged on the pressing plate, and in a use state, the pressing plate is fixed with the substrate and compresses the skin through the step.

Optionally, a soft protection layer is arranged on the surface of the pressing plate, which is in contact with the skin.

Optionally, each pressing plate is provided with at least two threaded holes.

The utility model provides a covering quick change frock system, includes:

a work table;

a zero point clamp installed on the work table;

the zero point fixture and the positioning pin are matched with each other;

and the vacuum pump is communicated with each diversion trench and used for extracting air between the skin and the substrate, and a control valve is arranged between each vacuum adsorption area and the vacuum pump.

Optionally, the substrate is rectangular, and the zero point clamps are at least four and respectively correspond to four corners of the substrate.

The application provides a covering quick change frock can reduce the clamping time to the covering blank, under the prerequisite of guaranteeing processingquality, improves the utilization ratio and the machining efficiency of lathe.

Drawings

FIG. 1a is a schematic view of a skin blank (roll-curved state);

FIG. 1b is a schematic view of a skin blank (expanded state);

FIG. 2a is a schematic view of the finished skin (roll-curved state);

FIG. 2b is a schematic view of the finished skin (in an expanded state);

fig. 3 is a schematic view of the front surface of a substrate in the skin quick-change tool of the present application;

FIG. 4a is a schematic view of one of the pressing plates of the skin quick-change tool of the present application;

FIG. 4b is a schematic view of direction A of FIG. 4 a;

FIG. 5a is a schematic view of another pressing plate of the skin quick-change tool of the present application;

FIG. 5B is a schematic view of the direction B in FIG. 5 a;

FIG. 6 is a schematic view of a use state of the skin quick-change tool according to the present application;

fig. 7 is a perspective view of the skin quick-change tool in a use state.

In the figure: 1. covering a blank; 2. covering a skin; 3. a vacuum adsorption zone; 4. a diversion trench; 5. a sealing strip; 6. pressing a plate; 7. a step; 8. a substrate; 9. a threaded bore.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

For a better description and illustration of embodiments of the application, reference may be made to one or more of the drawings, but additional details or examples for describing the drawings should not be construed as limiting the scope of any of the inventive concepts of the present application, the presently described embodiments, or the preferred versions.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

Referring to fig. 1a and 1b, a skin blank 1 is rectangular, and the skin blank 1 has a certain radian in a roll bending state.

Referring to fig. 2a and 2b, the finished skin 2 is substantially U-shaped, and the different regions have different thicknesses.

Referring to fig. 3, 6 and 7, a skin quick-change tool includes:

a substrate 8;

the positioning pin is positioned on the back surface of the substrate 8 and is matched with the zero point clamp for use;

the skin blank comprises a plurality of vacuum adsorption areas 3 which are arranged on the front surface of a substrate 8 and are matched with the skin blank 1 in shape, sealing strips 5 are arranged on the edges of the vacuum adsorption areas 3, and a diversion trench 4 which is used for being communicated with a vacuum pump is arranged in each vacuum adsorption area 3 of the substrate 8;

the threaded holes 9 are arranged on the base plate 8 and correspond to the edge positions of the skin 2;

the pressing plates 6 are matched with the base plate 8 for use so as to press the skin 2 tightly, and in a use state, the pressing plates 6 correspond to the edge position of the skin 2 and are fixed on the base plate 8 through screws penetrating through the pressing plates 6 and the corresponding threaded holes 9.

In the skin quick change frock that this application provided, base plate 8 utilizes anchor clamps at zero point to accomplish the change fast, reduces the occupation time of lathe, improves machining efficiency.

Referring to FIG. 3, the base plate 8 is customized to the geometry of the skin 2, and is generally rectangular, and in one embodiment, the base plate 8 is sized to be 4000mm long and 2000mm wide and 100mm high, and the base plate 8 may be made of aluminum.

Because the size of the skin 2 is large, in order to realize the segmented adsorption, the vacuum adsorption areas 3 are at least eight, and the areas and the shapes of the vacuum adsorption areas 3 are not completely the same. In one embodiment, referring to fig. 3, the vacuum adsorption zone 3 is ten blocks.

As shown in fig. 3, the vacuum suction areas 3 are distributed in the skin blank 1 over all areas avoiding the edge of the skin 2. In order to clamp and unfold the skin blank 1, the skin blank 1 is fixed by vacuum adsorption as much as possible, and the area which becomes waste after the manufacturing process is finished is correspondingly provided with a vacuum adsorption area 3.

Referring to fig. 3, all the vacuum adsorption areas 3 are divided into a plurality of groups along the length direction of the skin blank 1, and each group includes one or two vacuum adsorption areas 3 arranged along the width direction of the skin blank 1.

When the skin blank fixing device is used, one end of the skin 2 in the length direction is fixed firstly, then the pressing plate 6 is fixed and vacuum adsorption is carried out on one end in sequence, and the width of the part, located below the pressing plate 6, of the edge of the skin blank 1 is not more than 15 mm.

Referring to fig. 3, the front surface of the substrate 8 is provided with a sealing groove which is circumferentially closed, and the sealing strip 5 is embedded in the sealing groove. The shape of seal groove and the shape of sealing strip 5 suit, and under the user state, the both sides of sealing strip 5 paste respectively and lean on base plate 8 and covering blank 1, enclose together at base plate 8, covering blank 1 and sealing strip 5 and form a confined space, extract the air in this confined space, realize the absorption to covering blank 1. In one embodiment, the sealing strip 5 is circular in cross-section and the sealing strip 5 has a diameter of 8 mm.

The depth of each flow guide groove 4 in the vacuum adsorption area 3 is set according to needs, and in one embodiment, the depth of each flow guide groove 4 is 7.35 mm. The diversion trenches 4 in each vacuum adsorption area 3 are communicated with each other.

Referring to fig. 3, 6 and 7, the threaded holes 9 are arranged along the edge of the skin 2, and at both ends of the skin 2 in the length direction, the threaded holes 9 are respectively arranged at both sides of the edge of the skin 2.

Referring to fig. 4a, 4b, 5a and 5b, the pressing plate 6 is provided with a step 7 corresponding to the thickness of the skin 2, and referring to fig. 6 and 7, in the use state, the pressing plate 6 is fixed with the base plate 8 and presses the skin 2 through the step 7.

The pressing plate 6 is a rectangular parallelepiped as a whole without considering the structure of the step 7, and in one embodiment, the pressing plate 6 has a size of 165mm long, 60mm wide and 25mm high.

In order to prevent the surface of the skin 2 from being damaged, the surface of the pressing plate 6, which is in contact with the skin 2, is provided with a soft protective layer. The soft protective layer can be adhered to or wrapped on the surface of the pressing plate 6 by adopting an elastic material.

Referring to fig. 4a and 5a, in order to avoid the pressure plate 6 from rotating and shifting after being fixed, each pressure plate 6 is provided with at least two threaded holes 9.

The application also provides a covering quick change frock system, includes:

a work table;

a zero point clamp installed on the working table;

in the skin quick-change tool, the zero point fixture is matched with the positioning pin;

and the vacuum pump is communicated with each flow guide groove 4 and used for extracting air between the skin 2 and the substrate 8, and a control valve is arranged between each vacuum adsorption area 3 and the vacuum pump.

In one embodiment, the worktable may be made of cast iron, and has dimensions of 5000mm long, 3500mm wide, 500mm high and 0.05mm flatness.

The diversion trenches 4 of the vacuum adsorption areas 3 are communicated with the vacuum pump through gas pipelines, independent control valves are arranged on the gas pipelines corresponding to the vacuum adsorption areas 3, and the vacuum pumping of the vacuum adsorption areas 3 can be controlled independently through the control valves.

The base plate 8 is rectangular, and the zero point anchor clamps are four at least, correspond four angles of base plate 8 respectively.

And clamping the skin by using the skin quick-change tool system, separating the substrate clamped with the skin from the zero fixture on the workbench, integrally hoisting the substrate to a machine tool, and clamping the substrate by using the zero fixture of the machine tool for processing.

The application provides a covering quick change frock can reduce the clamping time to the covering blank, under the prerequisite of guaranteeing processingquality, improves the utilization ratio and the machining efficiency of lathe.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. The utility model provides a covering quick change frock which characterized in that includes:

a substrate;

the positioning pin is positioned on the back of the substrate and is matched with the zero point clamp for use;

the vacuum adsorption areas are arranged on the front side of the substrate and are matched with the skin blank in shape, sealing strips are arranged at the edges of the vacuum adsorption areas, and diversion trenches communicated with a vacuum pump are arranged in the vacuum adsorption areas of the substrate;

the threaded holes are arranged on the substrate and correspond to the edge positions of the skin;

and the pressing plates are matched with the base plate for use so as to compress the skin, and in a use state, the pressing plates correspond to the edge position of the skin and are fixed on the base plate through screws penetrating through the pressing plates and the corresponding threaded holes.

2. The skin quick-change tool according to claim 1, wherein the vacuum adsorption areas are at least eight, and the areas and the shapes of the vacuum adsorption areas are not completely the same.

3. The skin quick-change tool according to claim 1, wherein each vacuum absorption area is distributed in all areas of the skin blank avoiding the edge of the skin.

4. The skin quick-change tool according to claim 2, wherein all the vacuum adsorption areas are divided into a plurality of groups along the length direction of the skin blank, and each group comprises one or two vacuum adsorption areas arranged along the width direction of the skin blank.

5. The skin quick-change tool according to claim 1, wherein a sealing groove which is circumferentially closed is formed in the front surface of the base plate, and the sealing strip is embedded in the sealing groove.

6. The skin quick-change tool according to claim 1, wherein a step corresponding to the thickness of the skin is arranged on the pressing plate, and in a use state, the pressing plate is fixed with the base plate and presses the skin through the step.

7. The skin quick-change tool according to any one of claims 1 to 6, wherein a soft protective layer is arranged on a surface of the pressing plate, which is in contact with the skin.

8. The skin quick-change tool according to claim 1, wherein each pressing plate is provided with at least two threaded holes.

9. The utility model provides a covering quick change frock system which characterized in that includes:

a work table;

a zero point clamp installed on the work table;

the skin quick-change tool according to any one of claims 1 to 8, wherein the zero point clamp is matched with the positioning pin;

and the vacuum pump is communicated with each diversion trench and used for extracting air between the skin and the substrate, and a control valve is arranged between each vacuum adsorption area and the vacuum pump.

10. The skin quick-change tooling system according to claim 9, wherein the base plate is rectangular, and the zero point clamps are at least four and respectively correspond to four corners of the base plate.

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