CN202894110U

CN202894110U - Locating and pressing mechanism arranged on press machine

Info

Publication number: CN202894110U
Application number: CN 201220606284
Authority: CN
Inventors: 杨青; 张远; 廖吉林; 苏兰
Original assignee: XIAMEN METALFORMING MACHINE TOOL CO Ltd
Current assignee: XIAMEN METALFORMING MACHINE TOOL CO Ltd
Priority date: 2012-11-16
Filing date: 2012-11-16
Publication date: 2013-04-24
Anticipated expiration: 2022-11-16

Abstract

The utility model discloses a locating and pressing mechanism arranged on a press machine. The locating and pressing mechanism comprises a mold core assembly and a pushing assembly. The mold core assembly comprises a base connected with a working table of the press machine, and the base is fixedly provided with a cylindrical mold core. Two locating air cylinders are fixed on the portions, on two sides of the cylindrical mold core, of the base, piston rods of the two locating air cylinders are provided with locating pins, the front ends of the locating pins have taper, the locating pins point at the cylindrical mold core, and pin holes are arranged in two sides of the cylindrical mold core and matched with the two locating pins. The pushing assembly comprises two material pushing air cylinders fixed on a slide block of the press machine and an upper seat arranged between the two material pushing air cylinders, the two material pushing air cylinders are arranged on two sides above the cylindrical mold core, the lower ends of the two material pushing air cylinders are connected with a push rod, a guide column is fixed in the middle of the upper seat, a pressing block is arranged on the lower portion of the guide column, and a plurality of guide rods and a plurality of compression springs are installed between the pressing block and the upper seat. On the premise of maintaining high production efficiency, the locating and pressing mechanism can maintain stamping accuracy pf products effectively.

Description

A kind of positioning compression mechanism that is loaded on forcing press

Technical field

The utility model relates to the workpiece positioning compression mechanism that is installed on the forcing press, especially a kind of positioning compression mechanism of tubular workpiece.

Background technology

When the tubular blank need to carry out stamping-out in the side of 90 degree of being separated by, generally utilize first forcing press to carry out the first stamping-out in two relative sides of tubular blank, then make tubular blank 90-degree rotation by artificial or rotating mechanism, then postrotational tubular blank is sent into the second processing stations carries out stamping-out; It is that working (machining) efficiency is low that the mode that adopts artificial rotation to locate has problems, and has simultaneously potential safety hazard; Adopt rotating mechanism that tubular blank 90-degree rotation is sent into the way that the second processing stations carries out stamping-out again, although production efficiency is higher, but there is error during owing to rotation error and displacement, there is larger site error in the time of can making the second manufacturing procedure carry out stamping-out in other relative two sides of tubular blank, finally reduces the machining accuracy of product.

The utility model content

The technical problems to be solved in the utility model provides a kind of positioning compression mechanism that is loaded on forcing press, under the prerequisite that keeps than high efficiency, effectively guarantees the punching precision of product.

For achieving the above object, the technical solution of the utility model is: a kind of positioning compression mechanism that is loaded on forcing press, comprise the core rod assembly that is loaded on press bench, be loaded on the thrust assemblies of press ram, described core rod assembly comprises the base that is connected with press bench, fix a cylindrical core rod on the base, base in the both sides of cylindrical core rod is fixed two positioning cylinders, front end is housed with the alignment pin of tapering on the piston rod of two positioning cylinders, the front end of alignment pin points to cylindrical core rod, and cylindrical core rod both sides are provided with pin-and-hole and match with two alignment pins; Described thrust assemblies comprises two pusher cylinders that are fixed on the press ram, two pusher cylinders are in the both sides of described cylindrical core rod top, the lower end of two pusher cylinder piston rods connects a push rod, fix a seat of honour on the press ram between two pusher cylinders, fix one towards the lead of cylindrical core rod in the middle of the seat of honour, the centre of push rod is provided with resigning hole and matches with described lead lower end, a briquetting that can move up and down along lead is equipped with in the bottom of lead, and a plurality of guide posts and a plurality of Compress Spring are housed between briquetting and the seat of honour.

Further improve, the bottom of described cylindrical core rod is equipped with and is taken off the material assembly, the described material assembly that takes off comprises and is arranged on below the cylindrical core rod both sides two Semicircular stripper plates, is fixed on two of base bottom and takes off the material cylinder, each takes off the material cylinder and is connected with a stripper plate by two push rods respectively, make things convenient for the workpiece automatic trip from counterdie, be conducive to realize automated production.

Further, be fixed with fairlead on the base of described cylindrical core rod both sides and match with described two alignment pins respectively, improve the positioning accuracy of two alignment pins.

The utility model is before press ram moves down, utilizing first two pusher cylinders to drive charging ram pushes away the tubular blank downwards, tubular blank through the processing of first stamping-out is enclosed within on the cylindrical core rod, right latter two pusher cylinder moves and makes the charging ram return, this moment, the tubular blank was circumferentially rotatable, then utilize two front ends to cooperate at the locating hole that the first operation adds the reservation in man-hour with the tubular blank by the positioning cylinder drive with the alignment pin of tapering, make tubular blank rotational positioning, eliminate the site error that the tubular blank exists when rotation and displacement, then press ram moves down by briquetting and push rod the tubular blank is compressed again, guarantee the punching precision in the second processing, effectively guarantee the punching precision of whole product.

On the other hand, because of the action of pusher cylinder with make tubular blank rotation location, the time is very short, can not affect the normal operation of press ram, can keep higher production efficiency.

Description of drawings

Fig. 1 is the tight front the utility model structure cutaway view of work piece positioning;

Fig. 2 is that the A of Fig. 1 is to view;

Fig. 3 is the B-B cutaway view of Fig. 2;

Fig. 4 is that the utility model briquetting is overlooked enlarged drawing;

Fig. 5 is the C-C cutaway view of Fig. 4;

Fig. 6 cutaway view that to be the utility model briquetting be connected with the seat of honour along the D-D section of Fig. 4;

Fig. 7 is the tight state the utility model of work piece positioning structure cutaway view;

Fig. 8 is workpiece stamping-out backed off after random state the utility model structure cutaway view.

The specific embodiment

Below in conjunction with accompanying drawing and concrete embodiment the utility model is described in further detail.

Fig. 1 is to shown in Figure 6, and a kind of positioning compression mechanism that is loaded on forcing press comprises the core rod assembly 2 that is loaded on press bench 1, the thrust assemblies 4 that is loaded on press ram 3;

Described core rod assembly 2 comprises the base 21 that is connected with press bench 1, fix a cylindrical core rod 22 on the base 21, base 21 in the both sides of cylindrical core rod 22 is fixed two

positioning cylinders

23,24, two positioning cylinders 23, front end is housed with the alignment pin 231 of tapering on 24 the piston rod, 241, two alignment pins 231,241 front end points to cylindrical core rod 22, cylindrical core rod 22 both sides are provided with pin-and-hole 221,222 and two alignment pins 231,241 match, and also can be fixed with fairlead 211 on the base 21 of cylindrical core rod 22 both sides, 212 respectively with two alignment pins 231,241 match;

Described thrust assemblies 4 comprises two pusher cylinders 41 that are fixed on the

press ram

3,42, two

pusher cylinders

41,42 are in the both sides of described cylindrical core rod 22 tops, two pusher cylinders 41, the lower end of 42 piston rods connects a push rod 43, two pusher cylinders 41, fix a seat of honour 44 on the press ram 3 between 42, fix one towards the lead 45 of cylindrical core rod 22 in the middle of the seat of honour 44, the centre of push rod 43 is provided with resigning hole 431 and matches with described lead 45 lower ends, a briquetting 46 that can move up and down along lead 45 is equipped with in the bottom of lead 45, and four guide posts 47 and four Compress Springs 48 are housed between briquetting 46 and the seat of honour 44.

The bottom of described cylindrical core rod 22 is equipped with and is taken off material assembly 5, the described material assembly 5 that takes off comprises and is arranged on below cylindrical core rod 22 both sides two Semicircular stripper plates 51, is fixed on two of base 21 bottoms and takes off material cylinder 52 that each takes off material cylinder 52 and is connected with a stripper plate 51 by two push rods 53 respectively.

Workflow of the present utility model is as follows:

In conjunction with shown in Figure 1, clamp 20 is clamped to the top of cylindrical core rod 22 to the workpiece 10 of preparing to carry out the processing of second stamping-out, and when press ram 3 was descending, two

pusher cylinders

41,42 actions drove push rods 43 and move down.

In conjunction with shown in Figure 7, press ram 3 is in descending process, push rod 43 is touched first workpiece 10 is enclosed within on the cylindrical core rod 22 workpiece 10, and then clamp 20 retreats, two

pusher cylinders

41,42 actions drive on the push rod 43 retracts the position, this moment two

positioning cylinders

23,24 simultaneously actions drive front end with two alignment pins 231 of tapering, 241 pass the locating hole 101 of workpiece 10 both sides, 102 and insert the pin-and-hole 221 of cylindrical core rod 22 both sides, in 222, make workpiece 10 slightly rotation and location, then the further lower enforcement briquettings 46 of press ram 3 upper end that is pressed in workpiece 10 by push rod 43 compresses workpiece 10, and press ram 3 further descendingly again just can drive punch die carries out second in two sides of workpiece 10 stamping-out and processed this moment.

In conjunction with shown in Figure 8, workpiece 10 is after stamping-out processing, press ram 3 is up, drive push rod 43 and break away from the upper surface of workpiece 10, right latter two takes off material cylinder 52 and move simultaneously and drive four push rods 53 two stripper plates 51 jack-up up, and workpiece 10 is just ejected cylindrical core rod 22 by two stripper plates 51, and clamp 20 just can be removed the workpiece 10 after processing, then two take off material cylinder 52 simultaneously again action drive two stripper plate 51 returns by four push rods 53, enter next circulation.

Below only be preferred embodiment of the utility model, the change that those skilled in the art does to be equal to by claim all falls into the protection domain of this case.

Claims

1. a positioning compression mechanism that is loaded on forcing press comprises the core rod assembly that is loaded on press bench, the thrust assemblies that is loaded on press ram, it is characterized in that:

Described core rod assembly comprises the base that is connected with press bench, fix a cylindrical core rod on the base, base in the both sides of cylindrical core rod is fixed two positioning cylinders, front end is housed with the alignment pin of tapering on the piston rod of two positioning cylinders, the front end of alignment pin points to cylindrical core rod, and cylindrical core rod both sides are provided with pin-and-hole and match with two alignment pins;

Described thrust assemblies comprises two pusher cylinders that are fixed on the press ram, two pusher cylinders are in the both sides of described cylindrical core rod top, the lower end of two pusher cylinder piston rods connects a push rod, fix a seat of honour on the press ram between two pusher cylinders, fix one towards the lead of cylindrical core rod in the middle of the seat of honour, the centre of push rod is provided with resigning hole and matches with described lead lower end, a briquetting that can move up and down along lead is equipped with in the bottom of lead, and a plurality of guide posts and a plurality of Compress Spring are housed between briquetting and the seat of honour.

2. a kind of positioning compression mechanism that is loaded on forcing press according to claim 1, it is characterized in that: the bottom of described cylindrical core rod is equipped with and is taken off the material assembly, the described material assembly that takes off comprises and is arranged on below the cylindrical core rod both sides two Semicircular stripper plates, is fixed on two of base bottom and takes off the material cylinder that each takes off the material cylinder and is connected with a stripper plate by two push rods respectively.

3. a kind of positioning compression mechanism that is loaded on forcing press according to claim 1 is characterized in that: be fixed with fairlead on the base of described cylindrical core rod both sides and match with described two alignment pins respectively.