RU177000U1 - Module for pneumatic molding of parts from sheet blanks - Google Patents

Abstract

The utility model relates to equipment for pressure processing and can be used in various engineering industries in the manufacture of parts in a state of superplasticity from sheet blanks by pneumatic molding. The module contains a molding vacuum chamber in which pneumatic molding equipment is placed, devices for loading blanks into the molding vacuum chamber and unloading from her finished parts. The module is equipped with devices for storing workpieces and molded parts, as well as two vacuum chambers, in one of which there is a device for storing workpieces, and in the other - a device for storing parts, vacuum chambers are docked to the ends of the molding vacuum chamber and communicated with it through vacuum closures , a device for loading workpieces into a forming vacuum chamber is placed in a vacuum chamber equipped with a workpiece storage device, and a device for unloading parts from a forming chamber once escheno in a vacuum chamber for storage of the molded detaley.Tehnicheskim result is to increase the performance of the module. 1 ill.

Description

The utility model relates to equipment for pressure processing and can be used in various branches of engineering in the manufacture of parts in a state of superplasticity from sheet blanks by pneumatic thermoforming.

A known installation (the closest analogue) for isothermal pneumoforming of high-strength materials in the short-term creep mode (see VN Chudin, SN Larin, SS Yakovlev, Ya. A. Sobolev. "Equipment for isothermal pneumoforming of high-strength materials in short-term creep mode. ”Izvestia TU GU. Technical sciences. 2010. Issue No. 3), containing a detachable vacuum chamber, which contains equipment for pneumoforming, devices for loading workpieces into the chamber and unloading finished parts from it, as well as a VA system uumirovaniya chamber and heating molding equipment.

As a result of the analysis of the solution, the closest analogue, it should be noted that the disadvantage of this installation is its low productivity, which is due to the long processes of evacuation, heating of the chamber cavity, and also cooling of the finished part after its molding, which are repeated during the formation of each part. In addition, the constant cyclic thermal effect to which the equipment for pneumoforming is subjected during operation (heating of the tooling and initial workpieces, subsequent long-term cooling for unloading the finished parts after molding in violation of vacuuming) reduces the life of the equipment.

The technical result of this utility model is to increase the productivity of the module by ensuring the preservation of the specified parameters (temperature and pressure) of the medium inside its chambers during the processing of the entire batch of workpieces.

The specified technical result is ensured by the fact that the module is equipped with a module for pneumatic molding of parts from sheet blanks containing a molding vacuum chamber in which pneumatic molding equipment is placed, devices for loading blanks into the molding vacuum chamber and unloading finished parts from it devices for storing blanks and molded parts, as well as two vacuum chambers, one of which contains a device for storing blanks, and the other - a device o for storing parts, vacuum chambers are docked to the ends of the molding vacuum chamber and communicated with it through vacuum closures, a device for loading workpieces into the forming vacuum chamber is placed in a vacuum chamber equipped with a workpiece storage device, and a device for unloading parts from the molding chamber is located in a vacuum chamber for storing molded parts.

The essence of the claimed utility model is illustrated by graphic materials on which the module is presented in a section, the units and assemblies of which are in the initial position.

The module for pneumatic forming of parts from sheet blanks is made in the form of a sealed enclosure, divided by partitions into three sealed vacuum chambers communicating with each other: “A”, “B”, “C”. Vacuum chamber “A” is designed to store the workpieces loaded into it and to be molded, vacuum chamber “B” (molding vacuum chamber) is designed to mold the workpieces loaded into it from chamber “A” and the corresponding molding equipment is placed in it, and the vacuum chamber “ C "is intended for storage before unloading the parts molded in the vacuum chamber" B ".

The camera "A" is equipped with a boot device, which is a housing 1 docked to its end, in which telescopic elements 2, 3, 4 are mounted with the possibility of moving relative to each other, with a grip 5 for fixing the workpiece 6 located on the lodgement 7 of the conveyor 8 of the device for storing blanks placed in chamber “A” and feeding it (blank) into chamber “B”. A vacuum shutter 9 is mounted in the wall separating the chambers “A” and “B”, designed to communicate the cavities of these chambers when loading blanks into chamber “B” from chamber “A” 6. The loading device placed in the cavity of chamber “A” blanks in the chamber "B" and a device for storing blanks are standard.

In the chamber "B" there is a snap-in 10 for forming the initial blank 6. This snap-in is standard and does not require a detailed description, since it is not the subject of patenting in this application.

The vacuum forming chamber "B" is in communication with the chamber "C" through a cavity made in their common wall, in which a vacuum shutter 11 is installed.

In the camera "C" is a device for unloading parts from the camera "B" and a storage device for finished parts. A device for storing parts is made in the form of a conveyor 12 with lodges 13 for placing parts. Parts are delivered to chamber “C” in turn, as they are formed, from chamber “B” by capturing it with a clamp 14 of a telescopic discharge device consisting of telescopic elements 15, 16, 17 placed in a housing 18 docked to chamber “C”.

Devices for storing parts and unloading parts from the molding vacuum chamber located in chamber “C” are known, they are not subject to patent protection and therefore are not disclosed in detail in the application materials.

Vacuum chambers “A” and “C” are equipped with technological hatches (not shown) for stacking workpieces in a workpiece storage device and removing parts from the device for storing them.

Naturally, the module is equipped with heating and vacuum systems, the implementation of which is also known and does not constitute a subject of patent protection.

The molding process is also known.

The operation of the module can be carried out both in automatic and in manual modes.

The module for pneumatic molding of parts from sheet blanks works as follows.

For work, the vacuum chamber "A" through the technological hatch is loaded with the required number of blanks 6, which are placed on the lodgements 7.

They turn on the heating and vacuum systems and bring the parameters to the standard ones. The controlled environment in the vacuum chambers is a vacuum of 10 ^-4 -10 ^-1 mm. Hg or inert gas.

The loading device is turned on, the capture 5 of which fixes one of the preforms 6, opens the vacuum shutter 9 and, by moving the telescopic elements 2, 3, 4 of the loading device, moves the initial preform 6 into the molding tool 10 located in the chamber “B”, after whereby the telescopic elements 2, 3, 4 return to their original position, the vacuum shutter 9 is closed.

In the chamber "B", the process of forming the part from the workpiece 6 is carried out. After the end of the molding process, the finished part is removed from the molding elements of the snap tool (not shown). To remove the finished part, open the vacuum shutter 11 and the finished part removal mechanism moves the finished part into the holder of the finished parts storage device of the “C” camera.

As the vacuum chamber "C" is filled with finished parts (after processing the batch of blanks), after cooling to the temperature acceptable for transportation, with the vacuum shutter 11 closed, the parameters of the controlled environment of the chamber "C" are reset and the finished parts are unloaded from it .

Loading chamber “A” with the next batch of parts is carried out through the technological hatch with a closed vacuum shutter 9.

The proposed module allows to increase the productivity of manufacturing parts due to the long-term preservation of the parameters of the controlled environment inside the vacuum chambers "A", "B", "C" due to the preliminary placement and storage of the required number of initial blanks for molding in the chamber "A" loading and finished parts in unloading chamber “C”, which allows not to carry out operational loading of single initial blanks into the loading chamber and unloading of single finished parts directly from the unloading chamber, thereby violating the values of the parameters of the controlled environment for the loading chambers “A”, molding “B” and unloading “C”, which subsequently requires their long-term restoration, and in the confined space while maintaining the required environment, immediately produce a batch of parts.

Claims (1)

A module for the pneumothermal molding of parts from sheet blanks, comprising a molding vacuum chamber in which the pneumatic molding equipment is located, devices for loading blanks into the molding vacuum chamber and unloading finished parts from it, characterized in that it is equipped with devices for storing blanks and molded parts and two vacuum chambers, in one of which there is a device for storing blanks, and in the other a device for storing molded parts, while the vacuum chambers attach are forged to the ends of the molding vacuum chamber and communicated with it by means of vacuum closures, the device for loading workpieces into the molding vacuum chamber is placed in a vacuum chamber equipped with a workpiece storage device, and the device for unloading parts from the molding chamber is placed in a vacuum chamber for storing molded parts .

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