CN201543762U

CN201543762U - Fixture for forging, pressing and feeding

Info

Publication number: CN201543762U
Application number: CN2009202113278U
Authority: CN
Inventors: 张继行
Original assignee: Baoshan Iron and Steel Co Ltd
Current assignee: Baosteel Special Steel Co Ltd
Priority date: 2009-10-27
Filing date: 2009-10-27
Publication date: 2010-08-11
Anticipated expiration: 2019-10-27

Abstract

The utility model provides a fixture for forging, pressing and feeding, which comprises two cross-connected clamps and four chucks, wherein the four chucks are detachably fixed at two ends of two clamps respectively; the installation directions of the chucks are perpendicular to a plane on which the two chucks are positioned; and one end of a connecting rod and one end of the other connecting rod are mutually and rotationally connected and the other ends of the connecting rods are rotationally connected with the clamps respectively so as to form a four-connecting rod mechanism. A connecting piece of the connecting rods is a bolt; the chucks are driven by the vertical movement of the bolt to move and control the opening degree of the chucks. The utility model can meet the stipulation and the requirement of quick transfer of blanks, shorten the time for artificial adjustment, reduce the heat loss of the blanks, ensure the flowability and the fullness of the blanks during forging and improve the production efficiency; and meanwhile, by adopting the adjustable chucks, the utility model reduces the influence of the high-temperature deformation on the fixture, and reduces the production cost. Therefore, the utility model has favorable application and popularization prospect.

Description

A kind of forging and pressing feeding anchor clamps

Technical field

The utility model belongs to the anchor clamps field that the blank clamping is shifted, and relates in particular to a kind of forging and pressing feeding anchor clamps.

Background technology

In recent years, the use of high temperature alloy and titanium alloy constantly increases, and the characteristics of these alloys are: rheology drag height, plasticity is low, has the sensitiveness of anisotropy of mechanical properties that inhomogeneous deformation causes, is difficult to machining and with high costs.As a high titanium alloy forging of forging difficulty, size is bigger, the profile complexity, and during as employing ordinary hot distortion Forging Technology, the metal loss of machining reaches about 80%, often can not satisfy the required mechanical performance of aviation part.External original the employing is divided into several forgings respectively, the method that welds together then with forging.Now adopt the disposable shaping of method of superplasticity solid forging, reduced production cost, improved production efficiency.

The superplastic die forging technical process is as follows: at first blank is carried out thermal deformation (extruding, rolling or forging etc.) under near normal recrystallization temperature to obtain ultra-fine grain structure; Mould under the temperature super then, die forging becomes required shape in the mould of preheating; At last forging is heat-treated, to recover the high strength state of alloy.

According to the superplasticforming condition, superplastic die forging requires blank to keep constant temperature in forming process, is about to a kind of Forging Technology that mould and deforming alloy are heated to same temperature, and forging temperature of this ring and mold temperature are all about 900 ℃.

The shaping of ring divides three phases to carry out, and its flow process is:

Initial blank, be of a size of the pole of Φ 155 * 1050, using existing anchor clamps commonly used to carry out the clamping feeding enters blocker and forges into slab, be of a size of 1097 * 427 * 75, forge into parison by entering shaping mould after the finishing again, be of a size of 1000 * 300 * 427, enter orthoplastic casts again after slightly rectifying by finishing again and finish finish-forging.

Because the shape of each stage blank is all inequality, as Fig. 2 a) to Fig. 2 c) shown in, therefore initial forging and pressing feeding can only lean on general anchor clamps commonly used add artificial with pucellas, scale as Fig. 3 a) to Fig. 3 c) shown in etc. instrument draw centering and fulfil assignment, the ring production quantity was fewer when initial superplastic forming was studied, sometimes once produce several even a ring, therefore less demanding to production efficiency; Along with stablizing gradually of technology, ring also changes the batch process stage over to by the initial development stage, and generally the shortcoming of anchor clamps commonly used also more and more significantly affects production:

1) ring will need be used the artificial location of anchor clamps always through three shapings before each the shaping, greatly reduces production efficiency.

2) because operator's qualification difference, the blank position is put not in placely sometimes, and can not adjust because of anchor clamps this moment, needs manually adjust the blank position.And blank temperature is than higher, and regulating the speed can not be fast, therefore may cause the blank heat to scatter and disappear and influences forging quality.

3) because of blank temperature and die cavity temperature all than higher, after anchor clamps use a period of time, owing to often appearring in the cause of expanding with heat and contract with cold, distortion cause anchor clamps loosening, the tight of clamping when the clamping blank, will occur and fall on the ground, at this moment again blank be heated and have influence on the structure property of blank with regard to needs.

And, the existing anchor clamps scope of application commonly used is narrower, cylindrical blank or disk-like accessory that generally can only clamping Φ 150 * 500, the blank of producing other complex geometry also needs when the forging and pressing feeding artificially with the dilatory centering of instruments such as pucellas, high temperature service intensity at 900～1300 ℃ is big, production efficiency is low, the hysteresis manufacturing schedule, along with the scientific research advanced development of ring marches toward the batch process stage, the shortcoming of the incompatible big rhythm of production of its anchor clamps more and more begins to come out, therefore press for and produce a sleeve clamp, can finish the needs that whole ring is produced line.

Summary of the invention

The purpose of this utility model provides a kind of forging and pressing feeding anchor clamps, can distinguish the blank of three kinds of shapes of clamping, can satisfy regulation and requirement that blank shifts fast fully, can guarantee the quality and the transfer efficiency of blank to greatest extent, reduce manufacturing cost, had higher clamping precision and production efficiency.

The technical solution of the utility model is a kind of forging and pressing feeding anchor clamps, adopt the quadric chain principle to utilize the line motion of hydraulic operation machine 100mm, thereby conversion zooms into the requirement that circular motion satisfies anchor clamps work.

The purpose of this utility model is achieved in that a kind of forging and pressing feeding anchor clamps, comprises two cross-coupled tongs, also comprises:

Four chucks removably are fixed on the two ends of two tongs respectively;

The installation direction of described chuck is perpendicular to the plane at two tong places;

Connecting rod one end is rotationally connected mutually, and the other end connects tong respectively rotationally, forms 4 linkages.

Preferably, the connector of described connecting rod is a bolt.

Preferably, described anchor clamps also comprise a clamping fixture seat, and a waist hole is arranged on the clamping fixture seat, and described bolt is arranged in the waist hole.

Two tongs connect two connecting rods by two pins, two connecting rods are at B point connecting bolt, and bolt can move up and down in the waist hole, the scope of its motion is 0～100mm, be the line motion that hydraulic press passes through quadric chain mechanism principle operation 0～100mm, thereby conversion zoom into the requirement that circular motion satisfies clamp workpiece.Therefore, when bolt moved up, the connecting rod of side drive tong was done and is rotated counterclockwise, and opposite side connecting rod drive tong is done and clockwise rotated, and this moment, chuck can firmly clamp long and narrow initial blank under the effect of two tongs; Same when bolt moves down, side connecting rod drive tong is done and is clockwise rotated, and opposite side connecting rod d drive tong is done and rotated counterclockwise, and this moment, chuck was fit to the short and wide shaping blank of clamping; And regulate the centre position of bolt, just can clamp the blank of different size, as the slab material.

Simultaneously, two chucks are installed on the tong, and its installation direction is perpendicular to two tong planes, and these two chucks can be used alternatingly, easy to operate, equally, after using a period of time, when becoming flexible because of high temperature deformation as original chuck, only need the chuck on the transposing tong, so just greatly reduce the influence of high temperature deformation, reduce production costs, improved operating efficiency anchor clamps.

The utility model makes it compared with prior art owing to adopted above technical scheme, has the following advantages and good effect:

1) by the utility model, can satisfy the regulation and the requirement of the quick transfer of different phase blank, in transfer process, reduce the blank thermal loss as far as possible, the flowing and be full of of blank when guaranteeing to forge improved the quality of product.

2) by the utility model, reduced and artificially dilatory blank centering and operative employee's labour intensity have at high temperature been saved production time and operating time, improved production efficiency.

3) by the utility model, put not in place or blank shape not too during rule when the blank position, can come the clamping blank by the clamping shape of regulating tong, reduced the artificial adjustment time, guarantee the timely transfer of blank.

4) pass through the utility model, after using a period of time, anchor clamps originally become flexible because of high temperature deformation easily, it is smaller to anchor clamps clamping influence to improve the slight distortion in back, if big distortion takes place tong, can change the chuck of distortion, and needn't change a whole set of anchor clamps, so just greatly reduce the influence of high temperature deformation, reduced production cost anchor clamps.

Description of drawings

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.

Fig. 1 is the schematic diagram of forging and pressing feeding anchor clamps of the present utility model a).

Fig. 1 b) be that Fig. 1 C a) is to partial view.

Fig. 2 a)-Fig. 2 c) be respectively the schematic diagram of initial blank, slab material, shaping blank.

Fig. 3 a)-Fig. 3 c) be respectively the schematic diagram of existing anchor clamps a, anchor clamps b, anchor clamps c.

Among the figure:

1-tong 2-tong 3-pin

4-pin 5-bolt 6-connecting rod

The initial blank 9-of 7-connecting rod 8-slab material

The existing scale 12 of existing scale 11 12-of 10-shaping blank 11-

13-has scale 13 14-chuck 15-chucks now

16-clamping fixture seat 17-waist hole

The specific embodiment

As Fig. 1 a) and Fig. 1 b) shown in, two chucks 14 detachably are fixed on the two ends of tong 1 vertically downward; Two chucks 15, the detachable two ends that are fixed on tong 2 vertically downward; Tong 1 and tong 2 are rotationally connected by pin at the A point; And can be that adjusting is rotated in the center of circle with the A point.

Tong 1 is rotationally connected by pin 3 and connecting rod 6, tong 2 is rotationally connected by pin 4 and connecting rod 7, connecting rod 6 and connecting rod 7 are rotationally connected at B point and bolt 5, bolt 5 is arranged in the waist hole 17 on the clamping fixture seat 16 of anchor clamps, can in waist hole 17, move up and down, the length in this waist hole is 100mm, and both the range of movement of bolt was 0～100mm.Clamping fixture seat 16 is fixed on the hydraulic press, and hydraulic press is by the line motion of quadric chain mechanism principle operation 0～100mm, thereby conversion zooms into the requirement that circular motion satisfies clamp workpiece.

Therefore, when bolt 5 moved up, connecting rod 6 drive tongs 1 were done and are rotated counterclockwise, connecting rod 7 drive tongs 2 are done and are clockwise rotated, and two tongs close up to both sides, therefore, under the effect of two chucks, can firmly clamp long and narrow initial blank 8 as Fig. 2 a) shown in; In like manner, when bolt moved down, connecting rod 6 drive tongs 1 were done and are clockwise rotated, and connecting rod 7 drive tongs 2 are done and rotated counterclockwise, and two tongs separate to the centre, and at this moment, two chucks are fit to the short and wide shaping blank 10 of clamping as Fig. 2 c) shown in; And regulate the centre position of bolt, just can clamp the blank of different size, as slab material 9 as Fig. 2 b) shown in.

Like this, need not to change anchor clamps, need only line motion by the 100mm of hydraulic operation machine, mobile bolt 5, just can regulate two opening angle and sizes between tong, thereby clamp the blank of different sizes, significantly reduce the time of artificial adjustment, guarantee the timely transfer of blank, blank flows and is full of when guaranteeing to forge.

Simultaneously, because on tong 1 and the tong 2 chuck that two vertical two tong planes are installed is arranged all, these two chucks can be used alternatingly, and are easy to operate, save man-hour.Equally, after using a period of time, as during the situation when original anchor clamps taking place become flexible, only need to change the chuck on the tong, need not to change a whole set of anchor clamps, so just greatly reduce the influence of high temperature deformation, reduce production costs anchor clamps because of high temperature deformation.

In sum, the utility model can satisfy regulation and the requirement that blank shifts fast, production time and operating time have been saved, improved production efficiency, use interconvertible tong simultaneously, reduced the influence of high temperature deformation, reduced production cost, thereby possessed good prospect for promotion and application anchor clamps.

Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.

Claims

1. forging and pressing feeding anchor clamps comprise cross-coupled tong (1,2), it is characterized in that also comprising:

Two chucks (14) removably are fixed on the two ends of tong (1);

Two chucks (15) removably are fixed on the two ends of tong (2);

The installation direction of described chuck (14,15) is perpendicular to the plane at tong (1,2) place;

Connecting rod (6,7), an end is rotationally connected mutually, and the other end connects tong (1,2) respectively rotationally, forms 4 linkages.

2. forging and pressing feeding anchor clamps as claimed in claim 1 is characterized in that: the connector of described connecting rod (6,7) is a bolt (5).

3. forging and pressing feeding anchor clamps as claimed in claim 1 is characterized in that: also comprise a clamping fixture seat (16), a waist hole (17) is arranged on the clamping fixture seat (16), described bolt (5) is arranged in waist hole (17).