CN203197111U

CN203197111U - Progressive mould with abnormal detecting device

Info

Publication number: CN203197111U
Application number: CN 201320169739
Authority: CN
Inventors: 张燕琴
Original assignee: Dongguan Polytechnic
Current assignee: Dongguan Polytechnic
Priority date: 2013-04-06
Filing date: 2013-04-06
Publication date: 2013-09-18
Anticipated expiration: 2023-04-06

Abstract

The utility model relates to the technical field of a stamping mould and especially relates to a progressive mould with an abnormal detecting device. The progressive mould comprises an upper mould plate, a convex mould fixing plate, a convex mould, a detecting pin, a detecting switch and an elastic part, wherein the detecting pin and the elastic part are arranged in the convex mould fixing plate; one end of the elastic part is in contact connection with the detecting pin; the convex mould and the detecting pin are arranged along a material advancing direction in turn; a distance between the detecting pin and the convex mould is a step pitch; the detecting switch is used for detecting whether the motion of the detecting pin is abnormal; when a processed hole is not abnormal, the detecting pin can normally pass by the hole and the detecting switch and the detecting pin are in normal contact; when the processed hole is abnormal, the detecting pin cannot normally pass by the hole, the elastic part is compressed to move upwards and the detecting switch is switched on, so that a high-speed punching machine is driven to halt; and the progressive mould can be used for timely finding the abnormity during a working process, the reject ratio of products is effectively reduced and the mould and equipment are protected.

Description

Progressive die with abnormal detector

Technical field

The utility model relates to the Stamping Die Technology field, particularly a kind of progressive die with abnormal detector.

Background technology

Progressive die is comprised of a plurality of stations, and each station is related in order finishes different processing, finishes a series of different punch process in the one stroke of punch press.After one stroke is finished, material is moved forward according to a fixing step pitch by the punch press feeder, on secondary mould, can finish a plurality of operations like this, punching is generally arranged, blanking, pull and stretch etc. are cut edge in bending.

Progressive die generally all is installed on and carries out processing on the high velocity ram machine, when abnormal conditions occurring in the processing of high speed progressive stamping, high velocity ram machine will stop from the high-speed cruising state within the extremely short time, this just need to arrange checkout gear, with the common coordinative role of emergency braking system of sensitive, safe and reliable detecting element, sensing element, control system and punch press.In the situation that the porous high speed blanking when appearance in the punching course is unusual, punch for example occurs and fractures, if in time do not detect, will produce a fairly large number of defective work, and might mold damage.

Add man-hour at progressive stamping at present, the centre does not arrange checkout gear Punching Process is detected, therefore often all be after waiting until that last operation machines, when the sampling observation staff carries out regular or irregular inspection to presswork, just might find to cause product defective because a certain operation in the punching course is bad.Tend to like this cause a large amount of defective products, cause fraction defective rising, production cost to rise, What is more can damage progressive die.

The utility model content

The utility model unusually to cause fraction defective rising, cost to rise owing to failing in time to detect punching press, even damages the problem of progressive die in order to solve in the present progressive stamping process, and a kind of progressive die with abnormal detector that provides.

For reaching above-mentioned functions, the technical scheme that the utility model provides is:

A kind of progressive die with abnormal detector, comprise upper clamping plate, punch retainer and punch, described punch is fixedly installed on the described punch retainer, described progressive die also comprises test pin, sense switch and elastomeric element, described test pin and described elastomeric element are arranged in the punch retainer, and an end of described elastomeric element is connected with described test pin contact; The direction of advancing at material sets gradually described punch and described test pin, and the distance between described test pin and the described punch is a step pitch; Whether described sense switch is unusual for detection of the motion of described test pin.

Preferably, described sense switch is microswitch.

Preferably, described elastomeric element is spring.

Preferably, described test pin comprises polished rod section and thin bar section, and described microswitch contacts with described test pin, and contact portion is positioned at described polished rod section and near described thin bar section.

Preferably, the shape of the cross section of described thin bar section is identical with the shape of the cross section of described punch, but the size of the cross section of described thin bar section is than the little 0.5～1.5mm of size of the cross section of described punch.

Preferably, the height of described test pin equates with the height of described punch.

The beneficial effects of the utility model are: by described test pin and described sense switch are set, described punch is behind the corresponding hole of punch process on the material, described hole is along with material moves a step pitch, this moment just be positioned at described test pin under, described test pin is down motion under the drive of described upper bolster, and when the hole of processing does not have when unusual, test pin can normally pass through described hole, sense switch contacts normally with test pin, thereby keeps normal operating conditions; When the hole of processing has when unusual, test pin can not normally pass through, and this moment, test pin can elasticity of compression parts, up motion, this moment sense switch with disconnections that contact of test pin, sense switch starts, thus the shutdown of drive high velocity ram machine; Therefore adopt unusual in the in time discovery work of the utility model, can effectively reduce the fraction defective of product, can protect mould and equipment again.

Description of drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the structural representation when test pin detects under the punching hole normal condition;

Fig. 3 is the structural representation when test pin detects under the punching hole abnormality.

The specific embodiment

Be further elaborated below in conjunction with accompanying drawing 1 to 3 pairs of the utility model of accompanying drawing:

The progressive die with abnormal detector as shown in Figure 1, comprise upper clamping plate 1, punch retainer 2, punch 3, test pin 4, sense switch 5 and elastomeric element 6, punch 3 is fixedly installed on the punch retainer 2, test pin 4 and elastomeric element 6 are arranged in the punch retainer 2, and an end of elastomeric element 6 is connected with test pin 4 contacts; The direction of advancing at material 7 sets gradually punch 3 and test pin 4, and the distance between test pin 4 and the punch 3 is a step pitch; Whether sense switch 5 is unusual for detection of the motion of test pin 4.In the present embodiment, sense switch 5 is selected microswitch, adopts spring to make elastomeric element 6, certain sense switch 5 and elastomeric element 6, and we also can select other components and parts according to actual needs.

The test pin 4 of the present embodiment comprises polished rod section 41 and thin bar section 42, and the external diameter of polished rod section 41 is larger than the external diameter of thin bar section 42; Microswitch contacts with test pin 4, and contact portion is positioned at polished rod section 41 and near thin bar section 42.The shape of the cross section of thin bar section 42 is identical with the shape of the cross section of punch 3; The impact that test pin 4 is detected for eliminating error that material produces at assembling or motion process at moving process and mould, the size of the cross section of thin bar section 42 is than the little 0.5～1.5mm of size of the cross section of punch 3.After the mould assembling, the height of test pin 4 equates with the height of punch 3.

Operation principle of the present utility model is as follows:

Punch 3 is behind the corresponding hole of punch process on the material 7, hole after the processing is along with material 7 moves a step pitch to next station, this moment just be positioned at test pin 4 under, test pin 4 is down motion under the drive of upper bolster, as shown in Figure 2, when the hole of processing does not have when unusual, test pin 4 can normally pass through described hole, sense switch 5 contacts normally with the polished rod section 41 of test pin 4, thereby makes high velocity ram machine keep normal operating conditions; As shown in Figure 3; when punch 3 occurs unusual; when damaged, the hole of processing has unusually, and test pin 4 can not normally pass through; test pin 4 is understood elasticity of compression parts 6 at this moment; up motion because the external diameter of thin bar section 42 is less than the external diameter of polished rod section 41, this moment sense switch 5 with the disconnection that contacts of test pin 4; sense switch 5 starts, and shuts down thereby drive high velocity ram machine.

The above embodiment, it is preferred embodiments of the present utility model, be not to limit practical range of the present utility model, therefore all equivalences of doing according to the described structure of the utility model claim, feature and principle change or modify, all should be included in the utility model patent claim.

Claims

1. progressive die with abnormal detector, comprise upper clamping plate (1), punch retainer (2) and punch (3), described punch (3) is fixedly installed on the described punch retainer (2), it is characterized in that: described progressive die also comprises test pin (4), sense switch (5) and elastomeric element (6), described test pin (4) and described elastomeric element (6) are arranged in the punch retainer (2), and an end of described elastomeric element (6) is connected with described test pin (4) contact; The direction of advancing at material sets gradually described punch (3) and described test pin (4), and the distance between described test pin (4) and the described punch (3) is a step pitch; Whether described sense switch (5) is unusual for detection of the motion of described test pin (4).

2. the progressive die with abnormal detector as claimed in claim 1, it is characterized in that: described sense switch (5) is microswitch.

3. the progressive die with abnormal detector as claimed in claim 1, it is characterized in that: described elastomeric element (6) is spring.

4. the progressive die with abnormal detector as claimed in claim 2, it is characterized in that: described test pin (4) comprises polished rod section (41) and thin bar section (42), described microswitch contacts with described test pin (4), and contact portion is positioned at described polished rod section (41) and near described thin bar section (42).

5. the progressive die with abnormal detector as claimed in claim 4, it is characterized in that: the shape of the cross section of described thin bar section (42) is identical with the shape of the cross section of described punch (3), but the size of the cross section of described thin bar section (42) is than the little 0.5～1.5mm of size of the cross section of described punch (3).

6. such as the described arbitrary progressive die with abnormal detector of claim 1 to 5, it is characterized in that: the height of described test pin (4) equates with the height of described punch (3).