CN216298648U

CN216298648U - Clamping device for machining thin-wall blank shell

Info

Publication number: CN216298648U
Application number: CN202122640023.7U
Authority: CN
Inventors: 史永恒; 李大锦
Original assignee: Shaanxi Fast Gear Co Ltd
Current assignee: Shaanxi Fast Gear Co Ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-04-15
Anticipated expiration: 2031-10-29

Abstract

The utility model relates to a clamping device for processing a thin-wall blank shell, wherein a magnetic platform is used for carrying out magnetic adsorption on a clamp, and the magnetic adsorption has the advantages that the blank shell is convenient to mount and dismount on the clamp, a through hole is formed in the magnetic platform, the clamp and a vacuum pump are communicated, and the magnetic platform is used for flexibly fixing the blank shell.

Description

Clamping device for machining thin-wall blank shell

Technical Field

The utility model relates to the field of thin-wall part machining, in particular to a clamping device for machining a thin-wall blank shell.

Background

The controller blank shell assembly is applied to a retarder and comprises a controller front cover and a controller rear cover as shown in fig. 1a and 1b, the size of the controller rear cover is 120mm x 80mm, the wall thickness of the controller rear cover is 2mm, the controller rear cover belongs to a typical thin-wall part, and the controller rear cover is easy to deform due to the vibration effect of a cutter in the machining process.

In the prior art, a mechanical fastening type sucker is adopted to fix a controller blank shell and is used for processing the blank shell, but as shown in fig. 2, the problem that the assembling and disassembling process is complex, a mechanical fastening type sucker clamp needs manual clamping, the sucker is fixed on a workbench in a mechanical mode, the arrangement process is complex, the adjustment time is long, the time is wasted, and the controller blank shell is not suitable for mass production of thin-wall parts; meanwhile, the thin-wall blank shell is low in machining precision, the thin-wall blank shell is machined by adopting an aluminum alloy forging material, the thickness of the blank shell is 2mm, and the thin-wall blank shell is easily deformed under the influence of factors such as material properties and thin thickness. When adopting the centre gripping of mechanical fastening formula sucking disc, in the course of working of blank casing, because the sword effect that shakes of cutter, if the clamp force that receives and holding power are too high, will lead to the condition such as deformation to appear to also can damage the precision of blank casing, draw its quality down.

In conclusion, the mechanical fastening type sucker clamp has the problems of complex clamping process, low machining precision of blank shells and the like, and is difficult to meet the requirements of mass production, quick assembly and disassembly, precision and the like in the production process of parts.

SUMMERY OF THE UTILITY MODEL

The utility model provides a clamping device for processing a thin-wall blank shell, aiming at the problems that clamping is easy to deform and the processing precision is low in the fixing processing process of the thin-wall blank shell in the prior art.

The utility model is realized by the following technical scheme:

a clamping device for processing a thin-wall blank shell is characterized by comprising a clamp, a magnetic force platform and a vacuum pump;

an air cavity and a vacuum channel are arranged in the center of the magnetic platform, one port of the vacuum channel is connected to the side wall of the air cavity, and the other port of the vacuum channel is connected to the side wall of the magnetic platform to form a pipeline interface;

the upper part of the clamp is provided with a groove which is attached to the edge of the blank shell, and the bottom of the clamp is provided with a through hole which is matched with the air cavity; the clamp is made of ferromagnetic substances;

and the input end of the vacuum pump is connected with the pipeline interface.

Further, the bottom of the groove is provided with an air guide groove communicated with the through hole.

Further, the air guide-out groove is attached to the blank shell.

Furthermore, the bottom of the air cavity is provided with an induction end of a pressure sensor, the output end of the pressure sensor is connected with a vacuum pressure gauge, and the vacuum pressure gauge is arranged on the side wall of the magnetic platform.

Further, the air cavity and the through hole are connected through a sealing member.

Further, bolts are arranged on the surface of the clamp close to the two side areas of the groove and used for fixing the blank shell.

Furthermore, the upper surface of the magnetic platform is composed of a magnetic plate or a plurality of magnetic blocks with the same shape.

Further, the clamp is made of metal containing iron, nickel or cobalt.

Compared with the prior art, the utility model has the following beneficial technical effects:

Furthermore, the through-hole is provided with the air derivation groove of laminating mutually with the blank casing for increase the area of contact of air pump to the blank casing, and then increase the adsorption affinity to the blank casing, improve the stability in the blank casing course of working.

Further, the bottom of the air cavity is also provided with a pressure sensor, and after the pressure sensor reaches a preset threshold value, the blank shell can be processed, so that standardization in the processing process of the blank shell is facilitated, the processing flow of the blank shell is improved, and the processing efficiency and the processing precision of the blank shell are improved.

Furthermore, the air cavity is connected with the through hole through a sealing element, and the stability of the whole air cavity is improved.

Further, the anchor clamps surface is provided with the bolt next to recess both sides region, can be used to further spacing to the blank casing, and applicable in the heavier or great blank casing of machining strength of weight improves the commonality of this structure.

Drawings

FIG. 1a is a schematic structural diagram of the front side of a blank housing;

FIG. 1b is a schematic structural view of the reverse side of a blank shell;

FIG. 2 is a schematic structural view of a blank housing fixed by a mechanical fastening type suction cup in the prior art;

FIG. 3 is a schematic view of a clamping device for machining a thin-walled blank shell according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of the magnetic platform and fixture configuration in an embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view of a magnetic platform and a fixture according to an embodiment of the present invention;

FIG. 6 is a schematic view of a clamp according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a magnetic platform according to an embodiment of the present invention.

In the figure: the device comprises a clamp 1, a groove 10, a through hole 11, an air guide groove 12, a bolt 13, a magnetic platform 2, a vacuum pump 3, an air cavity 20, a vacuum channel 21, a pipeline interface 22, a vacuum pressure gauge 23 and a pressure sensor 24.

Detailed Description

The present invention will now be described in further detail with reference to the attached drawings, which are illustrative, but not limiting, of the present invention.

The utility model relates to a clamping device for processing a thin-wall blank shell, which comprises a clamp 1, a magnetic platform 2 and a vacuum pump 3, as shown in figure 3;

an air cavity 20 and a vacuum channel 21 are arranged in the center of the magnetic platform 2, one port of the vacuum channel 21 is connected to the side wall of the air cavity 20, and the other port of the vacuum channel is connected to the side wall of the magnetic platform 2 to form a pipeline interface 22;

as shown in fig. 4, the upper part of the clamp 1 is provided with a groove 10 attached to the edge of the blank shell, and the bottom part is provided with a through hole 11 matched with the air cavity 20; the fixture 1 is made of ferromagnetic substances, so that the magnetic force platform 2 can be conveniently adsorbed, and meanwhile, after the machining is finished, the fixture can be conveniently taken down and a blank shell in the fixture is poured out, so that the workload of field operators is greatly reduced and the production efficiency is improved compared with a structure fastening mode in the prior art;

the input end of the vacuum pump 3 is connected with a pipeline interface 22.

In a preferred embodiment provided by the present invention, as shown in fig. 5, an air guiding groove 12 communicated with the through hole 11 is disposed at the bottom of the groove 10, and the air guiding groove 12 is attached to the blank housing to increase the contact area of the air pump 3 to the blank housing, so as to increase the adsorption force to the blank housing and improve the stability of the blank housing during the processing process.

In another preferred embodiment of the present invention, as shown in fig. 6 and 7, the bottom of the air cavity 20 is provided with a sensing end of a pressure sensor 24, an output end of the pressure sensor 24 is connected to a vacuum pressure gauge 23, and the vacuum pressure gauge 23 is arranged on the side wall of the magnetic platform 2. Specifically, pressure sensor 24's output is provided with vacuum pressure table 23, obtains a pressure threshold value to the test of the same blank casing, and at the in-process that uses, after pressure sensor 24 reached and predetermines the threshold value, can process the blank casing, be convenient for at the standardization of blank casing course of working, improve the flow of blank casing processing, improve blank casing machining efficiency and precision, avoided on-the-spot operating personnel to rely on experience operation to cause the processing accident.

Another preferred embodiment provided by the present invention is that the air chamber 20 and the through hole 11 are connected by a sealing member, which can be a rubber sealing ring, etc., to improve the air pressure stability of the whole air chamber.

Another preferred embodiment provided by the present invention is that the surface of the fixture 1, which is adjacent to the two side areas of the groove 10, is provided with bolts 13 for fixing the blank shell, which can be used for further limiting the blank shell, and can be applied to the blank shell with heavy weight or high processing strength, thereby improving the universality of the structure.

Another preferred embodiment provided by the utility model is that the upper surface of the magnetic platform 2 is composed of a magnetic plate or a plurality of magnetic blocks with the same shape, and specifically, the magnetic platform 2 composed of the magnetic blocks with the same shape can be used for various clamps with different bottom structures, so that the structure has wider universality.

Another preferred embodiment provided by the present invention is that the clamp 1 is made of metal including iron, nickel or cobalt, and is easy to adsorb and fix the magnetic platform 2.

In the using process, firstly, a clamp 1 is arranged on a magnetic platform 2, a blank shell is prepared, and the blank shell to be processed is placed in a groove 10 of the clamp 1;

opening the vacuum pump 3, absorbing gas in the magnetic platform 2, forming negative pressure difference between the upper surface and the lower surface of the blank shell to be processed, and fixing the blank to be processed on the clamp 1 when the vacuum pressure gauge 23 reaches a preset threshold value;

after the standby machine tool finishes machining, an air inlet valve of the vacuum pump 3 is opened, air enters the magnetic force platform 2 and the clamp 1, the reading of the vacuum pressure gauge 23 is 0, the clamp 1 is taken down from the magnetic force platform 2, and the machining process of the blank shell is finished.

The above-mentioned contents only illustrate the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.

Claims

1. A clamping device for processing a thin-wall blank shell is characterized by comprising a clamp (1), a magnetic platform (2) and a vacuum pump (3);

an air cavity (20) and a vacuum channel (21) are arranged in the center of the magnetic platform (2), one port of the vacuum channel (21) is connected to the side wall of the air cavity (20), and the other port of the vacuum channel is connected to the side wall of the magnetic platform (2) to form a pipeline interface (22);

the upper part of the clamp (1) is provided with a groove (10) which is attached to the edge of the blank shell, and the bottom of the clamp is provided with a through hole (11) which is matched with the air cavity (20); the clamp (1) is made of ferromagnetic substances;

the input end of the vacuum pump (3) is connected with the pipeline interface (22).

2. Clamping device for machining thin-walled blank casings according to claim 1, characterized in that the bottom of the groove (10) is provided with an air outlet channel (12) communicating with the through hole (11).

3. Clamping device for machining thin-walled blank casings according to claim 2, characterized in that the air outlet channel (12) is in abutment with the blank casing.

4. The clamping device for machining the thin-wall blank shell is characterized in that the bottom of the air cavity (20) is provided with a sensing end of a pressure sensor (24), an output end of the pressure sensor (24) is connected with a vacuum pressure gauge (23), and the vacuum pressure gauge (23) is arranged on the side wall of the magnetic platform (2).

5. Clamping device for machining thin-walled blank casings according to claim 1, characterized in that the air chamber (20) and the through-hole (11) are connected by a seal.

6. The clamping device for machining the thin-walled blank shell is characterized in that bolts (13) are arranged on the surface of the clamp (1) in the areas close to the two sides of the groove (10) and used for fixing the blank shell.

7. The clamping device for machining the thin-wall blank shell is characterized in that the upper surface of the magnetic platform (2) is composed of a magnetic plate or a plurality of magnetic blocks in the same shape.

8. Clamping device for machining thin-walled blank casings according to claim 1, characterized in that the clamp (1) is made of a metal comprising iron, nickel or cobalt.