CN200960526Y

CN200960526Y - Pipe shrinkage machine

Info

Publication number: CN200960526Y
Application number: CN 200620126951
Authority: CN
Inventors: 王伟; 梁秋
Original assignee: 庄添财
Priority date: 2006-10-19
Filing date: 2006-10-19
Publication date: 2007-10-17
Anticipated expiration: 2016-10-19

Abstract

The utility model relates to a pipe reducing machine, comprising a machine frame, a holding device, a processing device sliding mounted on the machine frame at the back of the holding device, and a material return device fixed on the machine frame, wherein the processing device is provided with a through holes fixed with an inserted through rod, while the wall of the through hole and the through rod have a space between to be inserted by object tube, and the through hole is provided with at least one part of gradually thinned neck. The holding device fixes a pipe, and the processing device pushes the pipe forwards to insert the back terminal of the pipe into the gap between the through hole and the through rod, then the pipe is compressed inwards when passes the neck, thereby preventing pipe from distortion and keeping a better pipe strength. And the utility model uses direct punch deformation method to reduce pipe, therefore the utility model can be used to process various special-shaped pipes.

Description

Machine for shrinking

Technical field

The utility model relates to a kind of machine for shrinking, belongs to pipe fitting process equipment field.

Background technology

Machine for shrinking of the prior art, generally include the set of molds on the rotor portion that a feeding mechanism, is fixedly connected on motor, the rotatable extrusion die that is fixed with has machining hole on the described set of molds on this extrusion die, and described machining hole has one section thin neck that attenuates.When described machine for shrinking was worked, feeding mechanism pushed workpiece and moves forward, and inserted in the machining hole, and the extrusion die rotation also makes thin neck push at outer surface of tube wall, makes its inside indentation; Owing to there is bigger frictional force between extrusion die and the tube wall, make pipe fitting can't bear its pressure and torsional deformation, the part intensity that perhaps causes pipe fitting to dwindle is relatively poor; And this machine for shrinking only can be processed the revolving body pipe fitting, can't carry out the draw to the irregular special piece of vertical sectional shape.

Summary of the invention

The purpose of this utility model provides a kind of machine for shrinking that its external diameter is diminished the tube compression.

The technical scheme that the utility model adopted is: a kind of machine for shrinking, comprise frame, be arranged on the clamping device that is used for fixing pipe fitting to be processed on the described frame, be slidingly arranged in the processing unit (plant) on the frame at described clamping device rear, be fixedly installed on the discharging device on the described frame, has through hole on the described processing unit (plant), fixedly be inserted with the punching bar in the described through hole, also leaving between the outer surface of the hole wall of described through hole and described punching bar can be for the space of pipe fitting insertion to be processed, and described through hole has at least one section tapered thin neck.

Described processing unit (plant) comprises the sliding shoe that is fixedly connected with described punching bar and is fixedly connected on extruding circle on the described sliding shoe, described through hole is opened on the described sliding shoe, offer groove around described through hole on the sliding shoe in the described thin neck outside, described extruding circle is embedded in described groove, and the inner wall surface of described extruding circle constitutes the hole wall of described thin neck.

Described extruding circle is positioned at the front portion of described sliding shoe.

Also be set with guide rail on the described frame, described sliding shoe sliding connection is on described guide rail.

Described discharging device comprises the material returned block that is fixedly installed on the described frame, described punching bar passes described material returned block slidably, described machine for shrinking has two duties, when described machine for shrinking was in first duty, described material returned block was positioned at outside the described through hole; When described machine for shrinking is in second duty, described material returned block to small part in the hole wall and the space between the described punching bar of described through hole.

Also be set with second cylinder on the described frame, described second cylinder has second piston rod, and described punching bar is fixedly connected on an end of described second piston rod.

Described clamping device comprises first pressing mold that is fixedly installed on second pressing mold on the described frame and is pressed on the top of described second pressing mold, all offer groove on described first pressing mold and the second pressing mold opposite side surfaces, described a pair of groove docks and forms the cavity that can accommodate pipe fitting to be processed mutually.

Also be set with first cylinder on the described frame, described first cylinder has the first piston bar that can move along vertical, and described first pressing mold is fixedly connected on the bottom of described first piston bar.

The utility model compared with prior art has following advantage: utilize first module and second module that pipe fitting is fixed, processing unit (plant) is pushed ahead, the punching bar is inserted in the pipe fitting, simultaneously the rear end of pipe fitting is inserted in the space between punching bar and the through hole, pipe fitting is extruded through meticulous neck the time and inwardly indentation, can avoid the pipe fitting torsional deformation; Simultaneously, adopt the mode of direct punching press distortion to carry out the draw, make the utility model can generally be applicable to the processing of various erose special pieces.

Description of drawings

Accompanying drawing 1 is a front view of the present utility model;

Accompanying drawing 2 is a right view of the present utility model;

Accompanying drawing 3 is vertical view of the present utility model (duty one);

Accompanying drawing 4 is vertical view of the present utility model (duty two);

Accompanying drawing 5 is the partial enlarged drawing at the A place in the accompanying drawing 3;

Accompanying drawing 6 is the partial enlarged drawing at the B place in the accompanying drawing 4;

Wherein: 1, frame; 2, clamping device; 3, first pressing mold; 4, second pressing mold; 5, pipe fitting; 6, first cylinder; 7, first piston bar; 8, processing unit (plant); 9, discharging device; 10, guide rail; 11, punching bar; 12, second piston rod; 13, second cylinder; 14, extruding circle; 15, material returned block; 16, through hole; 17, sliding shoe; 18, thin neck; 19, groove; 20, groove.

The specific embodiment

Consult accompanying drawing 1 to shown in the accompanying drawing 6, a kind of machine for shrinking, processing unit (plant) 8 on the frame 1 that comprise frame 1, be arranged on the clamping device 2 that is used for fixing pipe fitting 5 to be processed on the described frame 1, is slidingly arranged in described clamping device 2 rears (right side is " preceding " in the accompanying drawing 3, and the left side is " back "), be fixedly installed on the discharging device 9 on the described frame 1.

Described clamping device 2 comprises second pressing mold 4 that is fixedly installed on the described frame 1, be arranged on the top of described second pressing mold 4 first pressing mold 3 (in this specification " on ", on in D score position relation and the accompanying drawing 1, the upper/lower positions relation is corresponding), be fixedly installed on first cylinder 6 on the described frame 1, described first cylinder 6 has the first piston bar 7 that can move along vertical, described first pressing mold 3 is fixedly connected on the bottom of described first piston bar 7, all offer groove 20 on the upper surface of the lower surface of described first pressing mold 3 and second pressing mold 4, described first pressing mold 3 can move up and down under the driving of first cylinder 6, when first pressing mold 3 is pressed on the upper surface of second pressing mold 4, described a pair of groove 20 docks and forms the cavity that can accommodate pipe fitting 5 to be processed mutually, and pipe fitting 5 is housed in this cavity and by described first pressing mold 3 and second pressing mold 4 and is fixedly clamped.

Also be set with the guide rail 10 and second cylinder 13 on the described frame 1, described second cylinder 13 has second piston rod 12, described processing unit (plant) 8 is fixedly installed on the end of second piston rod 12 and sliding connection on described guide rail 10, drives it by second cylinder 13 and advances or retreat along guide rail 10.

Have through hole 16 on the described processing unit (plant) 8, fixedly be inserted with punching bar 11 in the described through hole 16, this punching bar 11 is fixedly connected on the end of second piston rod 12, also leaving between the outer surface of the hole wall of described through hole 16 and described punching bar 11 can be for the space of pipe fitting 5 insertions to be processed, and described through hole 16 has at least one section tapered thin neck 18.

Described processing unit (plant) 8 comprises the extruding circle 14 of sliding shoe 17 that is fixedly connected with described punching bar 11 and the front portion that is fixedly connected on described sliding shoe 17, described through hole 16 is opened on the described sliding shoe 17, offer groove 19 around described through hole 16 on the sliding shoe 17 in described thin neck 18 outsides, described extruding circle 14 is embedded in described groove 19, the inner wall surface of described extruding circle 14 constitutes the hole wall of described thin neck 18, the front end of thin neck 18 is just thin gradually backward, is beneficial to pipe fitting 5 and stretches into.

Described discharging device 9 comprises the material returned block 15 that is fixedly installed on the described frame 1, and described punching bar 11 is through in the described material returned block 15 slidably.The profile of the profile of described material returned block 15 and pipe fitting 5 is similar, and can insert in the through hole 16.

Described machine for shrinking has two duties, during the described machine for shrinking draw, be in first duty, at this moment, clamping device 2 is fixing with pipe fitting 5, and processing unit (plant) 8 moves forward, and pipe fitting 5 is stretched in the space between through hole 16 and punching bar 11, the inner surface of described extruding circle 14 is pressed on the outside wall surface of pipe fitting 5, and described material returned block 15 is positioned at outside the described through hole 16; During the described machine for shrinking material returned, be under second duty, at this moment, clamping device 2 unclamps pipe fitting 5, pipe fitting 5 is inserted in the through hole 16 and is drawn back by processing unit (plant) 8 drives, and the front end of described material returned block 15 inserts in the hole wall and the space between the described punching bar 11 of described through hole 16, and is against on the rear end face of pipe fitting 5, processing unit (plant) 8 continues to move backward, until material returned block 15 pipe fitting 5 is released outside the through hole 16.

Claims

1, a kind of machine for shrinking, comprise frame (1), be arranged on the clamping device (2) that is used for fixing pipe fitting to be processed (5) on the described frame (1), be slidingly arranged in the processing unit (plant) (8) on the frame (1) at described clamping device (2) rear, be fixedly installed on the discharging device (9) on the described frame (1), it is characterized in that: have through hole (16) on the described processing unit (plant) (8), fixedly be inserted with punching bar (11) in the described through hole (16), also leaving between the outer surface of the hole wall of described through hole (16) and described punching bar (11) can be for the space of pipe fitting to be processed (5) insertion, and described through hole (16) has at least one section tapered thin neck (18).

2, machine for shrinking according to claim 1, it is characterized in that: described processing unit (plant) (8) comprises the sliding shoe (17) that is fixedly connected with described punching bar (11) and is fixedly connected on extruding circle (14) on the described sliding shoe (17), described through hole (16) is opened on the described sliding shoe (17), the sliding shoe (17) in described thin neck (18) outside is gone up and is offered groove (19) around described through hole (16), described extruding circle (14) is embedded in described groove (19), and the inner wall surface of described extruding circle (14) constitutes the hole wall of described thin neck (18).

3, machine for shrinking according to claim 2 is characterized in that: described extruding circle (14) is positioned at the front portion of described sliding shoe (17).

4, machine for shrinking according to claim 2 is characterized in that: also be set with guide rail (10) on the described frame (1), described sliding shoe (17) sliding connection is on described guide rail (10).

5, machine for shrinking according to claim 1, it is characterized in that: described discharging device (9) comprises the material returned block (15) that is fixedly installed on the described frame (1), described punching bar (11) passes described material returned block (15) slidably, described machine for shrinking has two duties, when described machine for shrinking was in first duty, described material returned block (15) was positioned at outside the described through hole (16); When described machine for shrinking was in second duty, described material returned block (15) to small part was positioned at the hole wall of described through hole (16) and the space between the described punching bar (11).

6, machine for shrinking according to claim 1, it is characterized in that: also be set with second cylinder (13) on the described frame (1), described second cylinder (13) has second piston rod (12), and described punching bar (11) is fixedly connected on an end of described second piston rod (12).

7, machine for shrinking according to claim 1, it is characterized in that: described clamping device (2) comprises first pressing mold (3) of second pressing mold (4) that is fixedly installed on the described frame (1) and the top that is pressed on described second pressing mold (4), all offer groove (20) on described first pressing mold (3) and second pressing mold (4) opposite side surfaces, described a pair of groove (20) docks and forms the cavity that can accommodate pipe fitting to be processed (5) mutually.

8, machine for shrinking according to claim 7, it is characterized in that: also be set with first cylinder (6) on the described frame (1), described first cylinder (6) has the first piston bar (7) that can move along vertical, and described first pressing mold (3) is fixedly connected on the bottom of described first piston bar (7).