CN202411240U

CN202411240U - Passive swaging device

Info

Publication number: CN202411240U
Application number: CN2011204779863U
Authority: CN
Inventors: 张朝英
Original assignee: XUZHOU YU-JIA CHEMICAL TECHNOLOGY Co Ltd
Current assignee: XUZHOU YU-JIA CHEMICAL TECHNOLOGY Co Ltd
Priority date: 2011-11-27
Filing date: 2011-11-27
Publication date: 2012-09-05
Anticipated expiration: 2021-11-27

Abstract

The utility model relates to a passive swaging device, belonging to the technical field of cold stamping production, comprising a cylinder, a constant pressure valve, a one-way valve and a spring, wherein the constant pressure valve and the one-way valve are respectively communicated with the inner part of the piston cylinder of the cylinder; the direction of the one-way valve ensures air suction to the cylinder when the piston goes upwards; the one-way valve is in a close state while the piston is in a compression state; and a spring is installed at the bottom of the piston of the cylinder. According to the utility model, the swaging device does need air sources or hydraulic sources from outside; the swaging force produced by the swaging device is basically constant; therefore, basically no energy is wasted; meanwhile, the swaging device has simple structure and brings benefits for part manufacture and quality control.

Description

A kind of passive type material pressing device

Technical field

The utility model relates to a kind of material pressing device, relates in particular to a kind of passive type material pressing device, belongs to the cold stamping production technical field.

Background technology

In cold stamping is produced, in order to guarantee the stretching quality of metal parts, generally all on cold stamping equipment, material pressing device is set, existing material pressing device generally is that single-acting cylinder, air compressor machine and air-path control system are formed; Complex structure not only, cost is higher, simultaneously, owing to need extraneous compressed air source; So energy consumption is also higher, in addition; Existing material pressing device at work because the compressed air in the single-acting cylinder is along with the increase of Piston Compression amount, the pressure that cylinder produced also increases thereupon; This just causes pressure-plate-force also constantly to be changed to height by little, and the pressure-plate-force of this variation also is unfavorable for the manufacturing of part and the control of quality.

Summary of the invention

The purpose of the utility model is: the defective that the existing complex structure of material pressing device, cost are higher, energy consumes the control of higher, as to be unfavorable for part manufacturing and quality that is adopted in producing to existing cold stamping; The utility model provides a kind of novel material pressing device; This kind material pressing device does not only need extraneous source of the gas or hydraulic power source, and simultaneously, the pressure-plate-force that it produced immobilizes basically; So; Basically consumes energy not simultaneously, has the advantage of the control of manufacturing simple in structure, as to help part and quality.

The utility model realizes that the technical scheme that above-mentioned purpose adopted is: a kind of passive type material pressing device; It comprises: cylinder, constant pressure valve, check valve, spring; It is characterized in that: constant pressure valve, check valve communicate with the piston cylinder inside of cylinder respectively, and wherein, the direction of check valve can guarantee in cylinder, to suck when piston makes progress air; Piston check valve when compressive state is in the state that ends, and in the cylinder of the piston lower end of cylinder, spring is installed.

Beneficial effect: the operation principle of the utility model is: when going up when utilizing pressure slider work, cylinder is in free state, and the piston that spring promotes cylinder moves upward, because the direction of check valve can guarantee in cylinder, to suck when piston makes progress air; Piston check valve when compressive state is in the state that ends, so, when workpiece compression cylinder piston bar; Air in the cylinder is just discharged from constant pressure valve, and the pressure of constant pressure valve exhaust is fixed, so; Cylinder its pressure inside when compressive state is also fixed, so this of the utility model kind of material pressing device does not only need extraneous source of the gas or hydraulic power source; Simultaneously, the pressure-plate-force that it produced immobilizes basically, so; Basically consumes energy not simultaneously, has the advantage of the control of manufacturing simple in structure, as to help part and quality.

Description of drawings

Accompanying drawing 1 is the principle schematic of the utility model;

Shown in Fig. 1: 1, cylinder; 2, constant pressure valve; 3, check valve 4; Spring.

The specific embodiment

A kind of passive type material pressing device; It comprises: cylinder 1, constant pressure valve 2, check valve 3, spring 4; Constant pressure valve 2, check valve 3 communicate with the piston cylinder inside of cylinder 1 respectively, wherein, in cylinder, 1 suck air when the direction of check valve 3 can guarantee that piston makes progress; Piston check valve 3 when compressive state is in the state that ends, and is mounted with spring 4 in the cylinder bottom the piston rod of cylinder 1.

Claims

1. passive type material pressing device; It comprises: cylinder (1), constant pressure valve (2), check valve (3), spring (4); It is characterized in that: constant pressure valve (2), check valve (3) communicate with the piston cylinder inside of cylinder (1) respectively, in the cylinder bottom the piston rod of cylinder (1) spring (4) are housed.