CN202143930U

CN202143930U - Hot-extrusion forging equipment for shaft tube

Info

Publication number: CN202143930U
Application number: CN201120217577U
Authority: CN
Inventors: 崔健; 崔若平; 胡圣华
Original assignee: JINAN ZNSN MACHINERY MANUFACTURING CO LTD
Current assignee: JINAN ZNSN MACHINERY MANUFACTURING CO LTD
Priority date: 2011-06-24
Filing date: 2011-06-24
Publication date: 2012-02-15
Anticipated expiration: 2021-06-24

Abstract

The utility model discloses hot-extrusion forging equipment for a shaft tube, which comprises convex moulds and concave moulds, wherein the convex moulds are used in each process in the forging process of the shaft tube and are fixedly connected into a whole; the concave moulds are used in each process in the forging process of the shaft tube and are fixedly connected into a whole; and the positions of the convex moulds and the concave moulds used in the same process are corresponding. One stroke of the convex moulds can finish a plurality of processes; and the various convex moulds relatively have no intermittent time, so that the forming time of one workpiece is shortened. A hot-extrusion forging method for the shaft tube adopts the above hot-extrusion forging equipment and has quick processing speed and high efficiency.

Description

The hot extrusion forging equipment of central siphon

Technical field

The utility model relates to a kind of forging equipment, particularly a kind of hot extrusion forging equipment of central siphon.

Background technology

Central siphon class part is meant the part that has certain-length, has counterbore or through hole in the longitudinal direction; This type part can pass through forging molding; After blanking, on forging equipment, carry out jumping-up, location, extruding and four operations of moulding in advance, also can omit positioning process.One of the forging equipment that exists at present can only be processed an operation, and a kind of production of part needs many forging equipments, drops into greatlyyer, and clamping times is many in the work, and production efficiency is low.

And because the general life-span of forge die is short, though easy and simple to handle, all to carry out outside water-cooled under the HTHP after each hot extrusion to reduce mold temperature; Mould stands serious cold and hot tired test; When extrusion modling, contact, cause the strong friction between mould and the workpiece, produce chemical action with red-hot workpiece; Make die surface produce heat erosion, cause mould to lose efficacy; Endoporus appears in workpiece, causes inside and outside axiality poor, is difficult for guaranteeing the dimensional accuracy of part.

Summary of the invention

The technical problem that the utility model will solve is: provide an a kind of stroke can process the hot extrusion forging equipment of the central siphon of a plurality of operations.

In order to solve the problems of the technologies described above; The hot extrusion forging equipment of the utility model central siphon comprises punch and die, and described punch comprises central siphon used punch of each operation in forging process; The used punch of each operation is fixedly connected and is integral; Described die comprises central siphon used die of each operation in forging process, and the used die of each operation is fixedly connected and is integral, and the punch that same processes is used and the position of die are corresponding.

In order to guarantee product quality; Prevent to be out of shape the product that produces because of punch; The used punch of all process steps all is fixed on the upper mounting plate, and each slip cap is connected to a locating ring on the used punch of each operation, and what locating ring slided up and down is arranged on the guide post that is fixed on the upper mounting plate.Workpiece is protected the problem of endoporus inclination, coaxiality deviation can not occur.

In order to make spacing reliable flexibly and to punch of locating ring motion; Said each locating ring respectively is provided with two guide posts; Two guide posts are positioned at the both sides of this locating ring institute cover punch, and guide post is that TBE (threaded both ends), centre are the body of rod of polished rod, and the upper end of the body of rod is threaded with upper mounting plate; The lower end of the body of rod is connected with nut, and the polished rod of the locating ring and the body of rod partly is slidingly connected.

The installation of die for ease; The used die of all process steps all is fixed on the lower platform, and the used die of each operation all is inserted in the overcoat, die that each operation is used and overcoat matched in clearance; The lower end of overcoat is connected through bolt with lower platform; The upper end snail of overcoat ties and is connected to fixed disk, and fixed disk is pressed on the die in the overcoat, and fixed disk is provided with the hole of exposing the last die orifice of die in the overcoat fully.

In order to make the die location accurately, be provided with location structure between die that each operation is used and the fixed disk on it.

In order to realize that continuous three stations of unit forge; The used punch of all process steps comprises the jumping-up punch that is arranged in order into a row, pushes punch and forming convax mould in advance, and the used die of all process steps comprises the jumping-up die that is arranged in order into a row, Extruding die and molding concave die in advance.

In order to realize that continuous four stations of unit forge; The used punch of all process steps comprises the jumping-up punch, the location punch that are arranged in order into a row, pushes punch and forming convax mould in advance, and the used die of all process steps comprises the jumping-up die that is arranged in order into a row, location die, Extruding die and molding concave die in advance.

The utility model beneficial effect: the utility model forging equipment has the mould of each operation; And the punch of each operation links into an integrated entity; A stroke of punch can be accomplished a plurality of operations; Various punch do not have the intermittently time relatively, accomplish a Workpiece shaping time shortening, and process velocity is fast, efficient is high.And endoporus tilts, the problem of coaxiality deviation because workpiece can not occur, and mould reduces the product surplus when design, and raw material reduce relatively.

Description of drawings

Fig. 1 is preceding materials and parts structural representation down for axle tube forges;

Fig. 2 is the blank structural representation behind the axle tube jumping-up;

Fig. 3 is the blank structural representation behind the axle tube location;

Fig. 4 is the blank structural representation after axle tube pushes in advance;

Fig. 5 is the blank structural representation behind the axle tube finish forging;

Fig. 6 is the utility model forging equipment structural representation;

Fig. 7 is the forming convax mould structural representation enlarged drawing of the utility model forging equipment;

Fig. 8 is the molding concave die structural representation enlarged drawing of the utility model forging equipment;

Among the figure: 1, frame, 2, punch, 3, die, 4, upper mounting plate, 5, guide post, 6, forming convax mould, 7, locating ring, 8, nut, 9, the die orifice bolt, 10, fixed disk, 11, molding concave die, 12, overcoat, 13, the counterdie set bolt, 14, lower platform.

The specific embodiment

The hot extrusion forging equipment of a kind of central siphon as shown in Figure 6 is used to forge axle tube as shown in Figure 5.This hot extrusion forging equipment comprises frame 1 and the punch 2 and die 3 that are arranged on the frame 1.Punch 2 comprises that fixed connection is integral and is arranged in order into a row jumping-up punch, locatees punch, pushes punch and forming convax mould in advance; Die 3 comprises that fixed connection is integral and is arranged in order into a row jumping-up die, location die, preparatory Extruding die and molding concave die; The jumping-up punch is corresponding with the position of jumping-up die; The location punch is corresponding with the position of location die; The extruding punch is corresponding with the position of preparatory Extruding die in advance; The position of forming convax mould and molding concave die is corresponding, promptly when punch 2 is descending jumping-up punch, location punch, push punch and forming convax mould in advance and can get in the corresponding die, make this forging equipment can carry out jumping-up, location simultaneously, push and four operations of moulding in advance.

Jumping-up punch, location punch, push punch and forming convax mould in advance and all be fixed on the upper mounting plate 4; Every kind of punch is identical with the syndeton of upper mounting plate 4, below is the syndeton that example is explained various punch and upper mounting plate 4 with forming convax mould 6, and is as shown in Figure 7; Forming convax mould 6 is fixed on the upper mounting plate 4; The both sides that are positioned at forming convax mould 6 on the upper mounting plate 4 respectively are provided with a guide post 5, and guide post 5 is that TBE (threaded both ends), centre are the body of rod of polished rod, and the upper end of the body of rod is threaded with upper mounting plate 4; The lower end of the body of rod is connected with nut 8; Slip cap is connected to a locating ring 7 on the forming convax mould 6, and the polished rod of locating ring 7 and two guide posts 5 partly is slidingly connected, and between locating ring 7 and the forming convax mould 6 the 1mm gap is arranged.When moulding punch 6 is in normal condition; Locating ring 7 can slide up and down along forming convax mould 6 and two guide posts 5, and locating ring 7 does not influence forming convax mould 6 turnover molding concave dies, when moulding punch 6 distortion occurs or tilts; Locating ring 7 can not slide up and down along forming convax mould 6 and two guide posts 5 simultaneously; Forming convax mould 6 gets into molding concave die and is obstructed, and has interrupted forging processing, avoids producing substandard products.

Jumping-up die, location die, preparatory Extruding die and molding concave die all are fixed on the lower platform 14; Every kind of die is identical with the syndeton of lower platform 14, below is the syndeton that example is explained various dies and lower platform 14 with molding concave die 11, and is as shown in Figure 8; Molding concave die 11 is inserted in the overcoat 12; Molding concave die 11 and overcoat 12 matched in clearance, the lower end of overcoat 12 is connected through counterdie set bolt 13 with lower platform 14, and the upper end of overcoat 12 is connected with fixed disk 10 through die orifice bolt 9; Fixed disk 10 is pressed on the molding concave die 11 in the overcoat 12, and fixed disk 10 is provided with the hole of the last die orifice that exposes molding concave die 11 fully.Be provided with location structure between molding concave die 11 and the fixed disk 10, promptly be provided with convexity, on the lower surface of fixed disk 10, be provided with and protruding corresponding groove in the upper surface of molding concave die 11.

The hot extrusion forging method of axle tube as shown in Figure 5 adopts forging equipment as shown in Figure 6, and the forging of each workpiece comprises the steps: (1) blanking: the round steel of intercepting appropriate length (as shown in Figure 1); (2) jumping-up: the round steel after will heating is put into the jumping-up die, and the descending jumping-up that carries out of punch forms blank shown in Figure 2; (3) location: the blank behind the jumping-up is put into the location die, and punch is descending to be positioned, and forms blank shown in Figure 3; (4) extruding in advance: will locate the back blank and put into preparatory Extruding die, punch is descending to be pushed in advance, forms blank as shown in Figure 4; (5) moulding: will push the back blank in advance and put into molding concave die, the descending finish forging that carries out of punch is split into blank as shown in Figure 5; Except that initial three three strokes with the end, the different operations of four workpiece of each stroke processing of the punch of hot extrusion forging equipment.

In the hot extrusion forging method of central siphon, positioning process can omit, and forging equipment also can omit location punch and location die accordingly.

Claims

1. the hot extrusion forging equipment of a central siphon; Comprise punch and die; It is characterized in that: described punch comprises central siphon used punch of each operation in forging process, and the used punch of each operation is fixedly connected and is integral, and described die comprises central siphon used die of each operation in forging process; The used die of each operation is fixedly connected and is integral, and the punch that same processes is used and the position of die are corresponding.

2. the hot extrusion forging equipment of central siphon according to claim 1; It is characterized in that: the used punch of all process steps all is fixed on the upper mounting plate; Each slip cap is connected to a locating ring on the used punch of each operation, and what locating ring slided up and down is arranged on the guide post that is fixed on the upper mounting plate.

3. the hot extrusion forging equipment of central siphon according to claim 2; It is characterized in that: said each locating ring respectively is provided with two guide posts; Two guide posts are positioned at the both sides of this locating ring institute cover punch, and guide post is that TBE (threaded both ends), centre are the body of rod of polished rod, and the upper end of the body of rod is threaded with upper mounting plate; The lower end of the body of rod is connected with nut, and the polished rod of the locating ring and the body of rod partly is slidingly connected.

4. the hot extrusion forging equipment of central siphon according to claim 2; It is characterized in that: the used die of all process steps all is fixed on the lower platform, and the used die of each operation all is inserted in the overcoat, die that each operation is used and overcoat matched in clearance; The lower end of overcoat is connected through bolt with lower platform; The upper end snail of overcoat ties and is connected to fixed disk, and fixed disk is pressed on the die in the overcoat, and fixed disk is provided with the hole of exposing the last die orifice of die in the overcoat fully.

5. the hot extrusion forging equipment of the central siphon of stating according to claim 4 is characterized in that: be provided with location structure between die that each operation is used and the fixed disk on it.

6. according to the hot extrusion forging equipment of any one described central siphon among the claim 1-5; It is characterized in that: the used punch of all process steps comprises the jumping-up punch that is arranged in order into a row, pushes punch and forming convax mould in advance, and the used die of all process steps comprises the jumping-up die that is arranged in order into a row, Extruding die and molding concave die in advance.

7. according to the hot extrusion forging equipment of any one described central siphon among the claim 1-5; It is characterized in that: the used punch of all process steps comprises the jumping-up punch, the location punch that are arranged in order into a row, pushes punch and forming convax mould in advance, and the used die of all process steps comprises the jumping-up die that is arranged in order into a row, location die, Extruding die and molding concave die in advance.