CN202238981U

CN202238981U - Hydraulic heading machine

Info

Publication number: CN202238981U
Application number: CN2011203397490U
Authority: CN
Inventors: 张爱军; 陈酉冰; 潘逸明; 高海波; 朱江华; 徐勤军
Original assignee: Jiangyin Changling Machinery Manufacturing Co Ltd
Current assignee: Jiangyin Changling Machinery Manufacturing Co Ltd
Priority date: 2011-09-08
Filing date: 2011-09-08
Publication date: 2012-05-30
Anticipated expiration: 2021-09-08

Abstract

The utility model relates to treatment equipment for pretreatment before drawing of metallic pipes, in particular to a hydraulic heading machine. The hydraulic heading machine comprises two horizontal hydraulic cylinders. Piston rods of the two hydraulic cylinders are oppositely arranged. The free ends of the piston rods of the hydraulic cylinders are respectively provided with a first pressing ring and a second pressing ring which are oppositely arranged. The cross sections of the first pressing ring and the second pressing ring are of the shape of a circle with a notch on the whole. The middle part of the circle with the notch is broken into two parts. At breaking points of the middle part, the two parts of the circle with the notch are connected with the free ends of the piston rods through rotating pins. The free end of the first pressing ring is a hollow pipe. The free end of the second pressing ring is matched with the hollow pipe of the free end of the first pressing ring and is inserted into the hollow pipe of the free end of the first pressing ring. After the second pressing ring is inserted into the first pressing ring, a pressing ring is formed. The first pressing ring and the second pressing ring are pulled and pushed in opposite directions through two piston rods which are oppositely arranged. The hydraulic heading machine has the advantages of even and stable force application, simple structure and easiness in realization.

Description

The hydraulic pressure head machine

Technical field

The utility model carries out pretreated a kind of treatment facility before relating to the metal pipe material drawing, specifically, relates to a kind of hydraulic pressure head machine.

Background technology

The drawing of tubing such as steel pipe, aluminum pipe, copper pipe needs thicker pipe to pull to the tubing that needs size.Thicker pipe is before drawing, and the shape of tube head will satisfy certain requirement, promptly can insert the pull head of drawbench, makes pull head block tube head, makes whole pipe pass through drawing mould smoothly then.

In the conventional art, process this thicker pipe, following method arranged:

1. heating in the stove, pneumatic hammer forges;

2. pneumatic hammer moulding;

3. heading machine rolls.

The two kinds of methods in front, consume fuel, contaminated environment, labour intensity is bigger, and efficient is low, and quality can not get guaranteeing.Rolling with heading machine is a kind of comparatively desirable mode.

And heading machine of the prior art rolls through several pressure head actings in conjunction often, and local pressure is inhomogeneous; The pressure head that rolls out is not carefully and neatly done; And rolling needs commutation circuit or oil circuit sometimes in the process, rolls with the different parts of realization to pipe.

The utility model content

The purpose of the utility model is to overcome the deficiency of prior art, adapts to practical demand, and a kind of hydraulic pressure head machine is provided.

In order to realize the purpose of the utility model, the technical scheme that the utility model adopts is:

A kind of hydraulic pressure head machine; The hydraulic cylinder that comprises two levels; The piston rod of said two hydraulic cylinders is oppositely arranged, and the free end of said hydraulic cylinder piston rod is respectively equipped with first pressure ring and second pressure ring that is oppositely arranged, and the cross section integral body of first pressure ring and second pressure ring all is the breach circle; The circular middle part of breach is broken as two parts; The circular two parts of said breach all are connected with the free end of piston rod through rotational pin at the cut-off point at middle part, and the free end of first pressure ring is a hollow pipe, and the free end of second pressure ring and the free-ended hollow pipe of first pressure ring are complementary and insert wherein; Said second pressure ring forms the pressure ring circle after inserting first pressure ring, and said first pressure ring and second pressure ring are through two piston rod that is oppositely arranged push-and-pulls round about.

The inner surface of said first pressure ring is equipped with briquetting.

The inner surface of said briquetting is positioned at same anchor ring.

Said briquetting is distributed in the inner surface of first pressure ring.

The beneficial effect of the utility model is:

1. form a pressure ring circle through two pressure rings of pegging graft each other, pipe is inserted in the pressure ring circle push, by the piston rod driving of hydraulic cylinder, stressed uniform and stable;

2. piston rod movement adjustable-speed also can be controlled the caliber of extruding through the switching of regulating reversal valve, and operation is very easy;

3. the design of the pressure head in first pressure ring makes that extruding is more easy;

4. simple in structure, realize easily.

Description of drawings

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

Fig. 2 is the local enlarged diagram of the A portion of Fig. 1;

Fig. 3 be the utility model structural representation two;

Fig. 4 is the local enlarged diagram of the B portion of Fig. 3.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the present invention is further specified:

Embodiment one: referring to Fig. 1, and Fig. 2.

A kind of hydraulic pressure head machine; The hydraulic cylinder 1 that comprises two levels; The piston rod of said two hydraulic cylinders is oppositely arranged, and the free end of said hydraulic cylinder piston rod is respectively equipped with first pressure ring 2 that is oppositely arranged and 3 cross section integral body of second pressure ring, 3, the first pressure rings 2 and second pressure ring all are the breach circle; The circular middle part of breach is broken as two parts; The circular two parts of said breach all are connected with the free end of piston rod through rotational pin 4 at the cut-off point at middle part, and the free end of first pressure ring 2 is a hollow pipe, and the free end of second pressure ring 3 and the free-ended hollow pipe of first pressure ring are complementary and insert wherein; Said second pressure ring 3 inserts first pressure ring, 2 backs and forms the pressure ring circle, and said first pressure ring 2 and second pressure ring 3 are through two piston rod that is oppositely arranged push-and-pulls round about.

Carrying out push-and-pull round about through two piston rods that are oppositely arranged, is common practise of the prior art, shown in the hydraulic circuit of Fig. 1, does not give unnecessary details at this.

Second pressure ring 3 inserts first pressure ring, 2 backs and forms the pressure ring circle, in the tube head insertion pressure ring circle with pipe, inwardly promotes to push through piston rod, and the extruding back spurs piston rod and unclamps, and pipe is extracted out get final product.

The speed that can come regulator solution cylinder pressure piston rod movement through the choke valve of regulating in the oil circuit.

Embodiment two: referring to Fig. 3, and Fig. 4.

Present embodiment and embodiment one are basic identical, and its something in common is not given unnecessary details, and difference only is that in the present embodiment, the inner surface of said first pressure ring 2 is equipped with briquetting 5.

Push through 5 pairs of pipe surfaces of briquetting, increased local pressure, make that extruding is more easy.

The inner surface of briquetting 5 is positioned at same anchor ring, and like this, briquetting can be tried one's best and acted on the pipe surface all.

Briquetting 5 is distributed in the inner surface of first pressure ring 2.

What the embodiment of the utility model announced is preferred embodiment; But be not limited thereto, those of ordinary skill in the art is very easily according to the foregoing description; Understand the spirit of the utility model; And make different amplifications and variation, but only otherwise break away from the spirit of the utility model, all in the protection domain of the utility model.

Claims

1. hydraulic pressure head machine; The hydraulic cylinder that comprises two levels; The piston rod of said two hydraulic cylinders is oppositely arranged, and it is characterized in that: the free end of said hydraulic cylinder piston rod is respectively equipped with first pressure ring and second pressure ring that is oppositely arranged, and the cross section integral body of first pressure ring and second pressure ring all is the breach circle; The circular middle part of breach is broken as two parts; The circular two parts of said breach all are connected with the free end of piston rod through rotational pin at the cut-off point at middle part, and the free end of first pressure ring is a hollow pipe, and the free end of second pressure ring and the free-ended hollow pipe of first pressure ring are complementary and insert wherein; Said second pressure ring forms the pressure ring circle after inserting first pressure ring, and said first pressure ring and second pressure ring are through two piston rod that is oppositely arranged push-and-pulls round about.

2. hydraulic pressure head machine according to claim 1 is characterized in that: the inner surface of said first pressure ring is equipped with briquetting.

3. hydraulic pressure head machine according to claim 2 is characterized in that: the inner surface of said briquetting is positioned at same anchor ring.

4. according to claim 2 or the described hydraulic pressure head machine of claim 3, it is characterized in that: said briquetting is distributed in the inner surface of first pressure ring.