CN104438826A

CN104438826A - Progressive die material conveying dislocation preventing method

Info

Publication number: CN104438826A
Application number: CN201410585764.1A
Authority: CN
Inventors: 陈至宇; 冯渝
Original assignee: Chongqing Zhixin Industry Co Ltd
Current assignee: Heilongjiang to Xin Machinery Manufacturing Co.,Ltd.; Chongqing Zhixin Industrial Group Co Ltd
Priority date: 2014-10-28
Filing date: 2014-10-28
Publication date: 2015-03-25
Anticipated expiration: 2034-10-28
Also published as: CN104438826B

Abstract

The invention discloses a progressive die material conveying dislocation preventing method. the method comprises the steps that a detecting pin is pre-arranged on a lower die, a pin hole is formed in the corresponding position of an upper die, and in the normal feeding process, the pin hole is aligned to the hollowed position of a workpiece; when feeding is not carried out in place, the pin hole is aligned to the solid position of the workpiece, in the die assembling process, the upper die generates downward pressure on the detecting pin through the solid position of the workpiece, the detecting pin is made to move downwards, when the detecting pin moves by the set distance, the detecting pin triggers an induction switch, the induction switch is connected with a control system, and a progressive die is controlled by the control system to stop working immediately. According to the method, normal use of equipment can be effectively guaranteed, the situation that the workpiece and the equipment are bashed due to the fact that feeding is not carried out in place is avoided, and work is reliable.

Description

The progressive die walks to expect Anti-dislocation method

Technical field

The present invention relates to the improvement of continuous mold structure, a kind of progressive die of concrete finger walks to expect Anti-dislocation method, and the present invention can, when the progressive die works, make the progressive die stop processing when walking to expect too much or very few, to avoid damaging workpiece and equipment by pressure, belong to progressive die technical field.

Background technology

The progressive die refers to and is made up of multiple station, and each station completes different processing, and the association of each station order, completes the mould of a series of different punch process in the one stroke of punch press.The progressive die has the following advantages: 1) stamping production efficiency is high.The progressive die can complete the techniques such as the stamping-out of complex parts, flange, bending, drawing, solid forming and assembling, decrease the work such as intermediate transition and resetting, and the increase of station quantity does not affect production efficiency, can the very little precision component of punching.2) handling safety is simple.During progressive die punching press, operator will not stretch into the deathtrap of mould by hand.To a large amount of production, also adopt automatic feed mechanism, mould is built with safety detection device.3) die life is long.Complicated interior shape and profile can be analyzed to simple punch and die profile, segmentation is successively die-cut, operation can be dispersed in several stations, the region of concentrating in operation can also arrange room, thus avoid the too small problem of punch and matrix wall thickness, change convex, recessed stress, improve mould strength.In addition, the progressive die also adopts stripper to double as punch guide plate, also highly beneficial for die life to raising.4) product quality is high.The progressive die completes whole forming processes of product in a secondary mould, overcomes the constant and accumulated error of the operation brought with multiple bearing during simple mould.5) production cost is lower.Although progressive die manufacturing expense is higher, because progressive die production efficiency is high, forcing press population is few, operative employee's number of needing and floor space few, decrease half-finished storage and transport, thus the comprehensive production cost of product parts is not high.In view of the above-mentioned plurality of advantages of the progressive die, therefore in current punching press, foundry enterprise, become main flow equipment gradually.But the progressive die exists a chain problem, if namely certain station charging is not in place, such as enter more or enter less, and due to Operation system setting reason, can there is this situation in multiple station often simultaneously.In appearance in this case, if continue processing, gently then defective work piece is heavy then destroy mould.But the charging due to each station is equipment to be completed automatically, be manually difficult to observe and judge, so often just can realize after there is unusual condition, and now lose and produce.Therefore, how when charging is not in place, make in time and detect and judge, and equipment is quit work, then become very necessary.

Summary of the invention

For prior art above shortcomings, a kind of progressive die is the object of the present invention is to provide to walk to expect Anti-dislocation method, the present invention can, when the progressive die works, make the progressive die stop processing, to avoid damaging workpiece and equipment by pressure when walking to expect too much or very few.

To achieve these goals, the technical solution used in the present invention is such:

The progressive die walks to expect Anti-dislocation method, has established test pin in advance on counterdie, has established pin-and-hole at patrix correspondence position, and during normal charging, pin-and-hole is just to the hollow out position of workpiece; When charging is not in place time, make pin-and-hole just to the physical location of workpiece, during matched moulds, patrix produces downward pressure by this physical location of workpiece to test pin makes test pin move downward, when moving to the distance of setting, test pin triggers inductive switch, and inductive switch is connected with control system, controls the progressive die quit work immediately by control system.

The pin-and-hole of described test pin and correspondence and triggering inductive switch are 2-3 cover, and when wherein any a set of test pin triggers inductive switch, the progressive die just quits work immediately.Can avoid so only establishing a set of may occur can not the situation of actual induction, improve the reliability of detection.

When test pin is triggered to inductive switch, the stroke of workpiece is the 1/3-1/2 of total kilometres.

The present invention is detected by test pin, and under normal circumstances, test pin and inductive switch can not be triggered, so do not affect normal process.When charging is not in place, walk to expect too much or very few, pin-and-hole all can be blocked by workpiece, and test pin and inductive switch are then triggered, and equipment can quit work immediately.Therefore this method effectively can guarantee the normal use of equipment, there will not be workpiece and equipment to be broken because charging is not in place, and reliable operation.

Accompanying drawing explanation

The normal operating diagram of Fig. 1-the present invention.

Operating diagram when Fig. 2-charging of the present invention is not in place.

Detailed description of the invention

Below in conjunction with accompanying drawing, the invention will be further described.

See Fig. 1 and Fig. 2, upper as can be seen from figure, the progressive die of the present invention walks to expect Anti-dislocation method, and on counterdie 1, establish test pin 2 upwards in advance, established pin-and-hole 4 at patrix 3 correspondence position, test pin 2 is just to pin-and-hole 4.During normal charging, pin-and-hole 4 is just to the hollow out position of workpiece 5, namely be the perforate position of workpiece between test pin and pin-and-hole, adding man-hour, owing to not stopping, test pin can enter in pin-and-hole at every turn, see Fig. 1, because pin-and-hole is greater than the diameter of test pin, and test pin can not arrive at the bottom of pin-and-hole, so test pin is without any stressed.When charging is not in place time, such as charging is too much or very few, when exceeding the charging amplitude of setting, makes pin-and-hole 4 just to the physical location of workpiece 5, is namely the physical location of workpiece 5 between test pin 2 and pin-and-hole 4, sees Fig. 2.Obvious now matched moulds, test pin can not enter in pin-and-hole, patrix can produce downward pressure to test pin by this physical location of workpiece makes test pin move downward (test pin is designed to telescopic structure), when moving to distance (stroke) of setting, test pin 2 triggers inductive switch 6, and inductive switch sends a signal to the control system be attached thereto, and controls dynamical system by control system, the progressive die is quit work immediately, can avoid like this continuing to process the loss brought.

During actual design, counterdie 1 is provided with test pin placed cavity, and inductive switch 6 is positioned at bottom placed cavity, is provided with spring 7 between test pin 2 and inductive switch 6, and in its natural state, test pin 2 protrudes from counterdie 1 surface.When the active force that test pin 2 pressurized is applied to inductive switch 6 reaches certain value (stroke of corresponding test pin), inductive switch 6 is triggered.

What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.

Claims

1. the progressive die walks to expect Anti-dislocation method, it is characterized in that: on counterdie, established test pin in advance, has established pin-and-hole at patrix correspondence position, and during normal charging, pin-and-hole is just to the hollow out position of workpiece; When charging is not in place time, make pin-and-hole just to the physical location of workpiece, during matched moulds, patrix produces downward pressure by this physical location of workpiece to test pin makes test pin move downward, when moving to the distance of setting, test pin triggers inductive switch, and inductive switch is connected with control system, controls the progressive die quit work immediately by control system.

2. the progressive die according to claim 1 walks to expect Anti-dislocation method, it is characterized in that: the pin-and-hole of described test pin and correspondence and triggering inductive switch are 2-3 cover, and when wherein any a set of test pin triggers inductive switch, the progressive die just quits work immediately.

3. the progressive die according to claim 1 walks to expect Anti-dislocation method, it is characterized in that: when test pin triggers inductive switch, the stroke of workpiece is the 1/3-1/2 of total kilometres.