CN218615513U

CN218615513U - Industrial pipe buckling and pressing die

Info

Publication number: CN218615513U
Application number: CN202222979086.XU
Authority: CN
Inventors: 冯烜中
Original assignee: Shanghai Jianuo Fluid Technology Co ltd
Current assignee: Shanghai Jianuo Fluid Technology Co ltd
Priority date: 2022-11-09
Filing date: 2022-11-09
Publication date: 2023-03-14
Anticipated expiration: 2032-11-09

Abstract

The utility model relates to a hydraulic pressure pipe fitting installation technical field's an industry pipe withholds mould, the withholding face front side of its radial briquetting is equipped with along radial convex radial arch, and the juncture of radial bellied internal diameter face and the preceding terminal surface of radial briquetting sets up to preceding chamfer, and the position of leaning on back of radial bellied internal diameter face is equipped with the back groove, forms between preceding chamfer and the back groove along the withholding arch of the radial bellied internal diameter face of radial protrusion. The inner diameter surface of the radial bulge of the radial pressing block is of a concave-convex structure, the buckling bulge is staggered with the front end and the rear end of the sleeve and the front end surface of the rubber tube, the sleeve formed by buckling is attractive in appearance, and the rubber tube or the sleeve cannot be buckled.

Description

Industrial pipe buckling and pressing die

Technical Field

The utility model relates to a hydraulic pressure pipe fitting installation technical field particularly, is an install in industry pipe withhold mould of withholding machine.

Background

The buckling and pressing machine is a hydraulic device for buckling and pressing a pipe assembly, and applies shrinkage force to a matched metal joint through a die of the buckling and pressing machine so as to firmly buckle and press the metal joint (also called a sleeve) on a matched high-pressure oil pipe for engineering machinery. The crimping machine is suitable for crimping operation of various mechanical high-low pressure oil pipes, air pipes, water pipes, cable joints, automobile air conditioning pipes, automobile power steering pipes, engine oil pipes, gasoline supply pipes, building accessories and daily hot water gas pipes, and is widely applied to industries such as vehicles, engineering machinery, hydraulic machinery, welding and cutting equipment and the like.

The prior art discloses a chinese utility model patent, and the patent application number is 201620959721X, application day 2016 is 08 months 28 days, announcement day 2017 is 02 months 15 days, "the 0013 section of this patent document points out" press claw 3 to have a plurality of, press the claw and evenly install in the knot hole department of fixed disk, press claw 3 can follow the fixed disk and radially slide ", be equivalent to press the claw to assemble in the radial knot of withholding the machine and press the end. During use, the plurality of fingers (i.e., the die) move radially inward to crimp the sleeve to the end of the hose.

However, the drawbacks of the prior art are very obvious, in particular: the conventional hose buckling and pressing dies are all linear dies, namely the pressing surface of the radial pressing block is a straight cylindrical surface, and when an industrial pipe is buckled and pressed, the radial pressing block easily crushes the hose or the joint.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an industry pipe withholds mould to solve the problem that crushes hose or joint easily among the prior art.

The purpose of the utility model is realized like this: an industrial pipe withholding die is arranged at a radial withholding end of a withholding machine and comprises a plurality of radial pressing blocks which are uniformly distributed along the radial direction and used for withholding a metal sleeve at the end part of a rubber pipe along the radial direction during withholding, and withholding surfaces of all the radial pressing blocks are combined to form a positioning through hole for accommodating the rubber pipe to pass through under the withholding state;

the position of the sleeve is arranged in front, a radial bulge protruding in the radial direction is arranged on the front side of the buckling surface of the radial pressing block, a front chamfer is arranged at the junction of the inner diameter surface of the radial bulge and the front end surface of the radial pressing block, a rear groove is arranged at the position close to the rear position of the inner diameter surface of the radial bulge, and the buckling bulge protruding out of the inner diameter surface of the radial bulge in the radial direction is formed between the front chamfer and the rear groove;

under withholding the state, the combination of the radial bellied internal diameter face of all radial briquettings forms the preceding hole portion of positioning hole, and the anterior chamfer of hole portion before the combination formation of the preceding chamfer of all radial briquettings, the annular inside groove of hole portion before the combination formation of the back groove of all radial briquettings, the annular inside groove just holds the sleeve rear end and the back perk limit that forms after the outside radial direction of sleeve rear end is rolled up, withhold protruding radial support and press the sleeve lateral wall so that the sleeve lateral wall inwards caves in and form the radial inflection portion of fixed laminating hose end portion lateral wall, withhold protruding and sleeve front and back end and the position stagger of the preceding terminal surface of rubber tube.

The beneficial effects of the utility model reside in that:

in the utility model, the inner diameter surface of the radial bulge of the radial pressing block is of a concave-convex structure, the buckling bulge is staggered with the front end and the rear end of the sleeve and the front end surface of the rubber tube, the appearance of the sleeve formed by buckling is attractive, and the rubber tube or the sleeve can not be buckled;

in the withholding process, withhold protruding radial support and press the sleeve lateral wall so that the sleeve lateral wall inwards caves in and forms the radial inflection portion of the fixed rubber tube end portion lateral wall that pastes, withhold protruding and sleeve front and back end and the position of the preceding terminal surface of rubber tube stagger, that is, order about the lateral wall of telescopic lateral wall deformation and impress the lateral wall of rubber tube, with the fixed combination of the lateral wall of rubber tube, the preceding terminal surface of rubber tube has been avoided, thereby make the preceding terminal surface of rubber tube can directly not receive the extrusion effort, thereby the rubber tube has been protected well, the sleeve has also been protected well.

Drawings

Fig. 1 is a schematic perspective view of the present invention before buckling.

Fig. 2 is an axial cross-sectional view of the present invention before crimping.

Fig. 3 is a schematic perspective view of the utility model after buckling.

Fig. 4 is an axial cross-sectional view of the present invention after crimping.

Fig. 5 is an enlarged view of a portion a in fig. 4.

Detailed Description

The present invention will be further described with reference to the accompanying fig. 1-5 and the specific embodiments.

As shown in fig. 1-5, an industrial pipe crimping mold is installed at a radial crimping end of a crimping machine, and includes a plurality of radial pressing blocks 1 which are uniformly distributed along a radial direction and radially crimp a metal-shaped sleeve 2 on an end portion of a rubber pipe 3 during crimping, the radial pressing blocks 1 are fixed at an inner circle side of the radial crimping end of the crimping machine through screws, and are driven by the crimping machine to move inwards along the radial direction during crimping so as to perform crimping operation, a radial section structure of each radial pressing block 1 is a sector, all the radial pressing blocks 1 are mutually spliced to form a circular sleeve-shaped structure during crimping, and crimping surfaces of all the radial pressing blocks 1 are combined to form a positioning through hole 4 (shown in fig. 3 and 4) for accommodating the rubber pipe 3 to pass through under a crimping state.

The position of the sleeve 2 is arranged in front, a radial bulge 11 protruding in the radial direction is arranged on the front side of the buckling surface of the radial pressing block 1, a front chamfer 14 is arranged at the junction of the inner diameter surface of the radial bulge 11 and the front end surface of the radial pressing block 1, a rear groove 13 is arranged at the position close to the rear of the inner diameter surface of the radial bulge 11, and a buckling bulge 12 protruding in the radial direction from the inner diameter surface of the radial bulge 11 is formed between the front chamfer 14 and the rear groove 13.

In a buckling state, all the radial pressing blocks 1 move inwards in a radial direction, the inner diameter surfaces of the radial protrusions 11 of all the radial pressing blocks 1 are combined to form a front hole part 4c of the positioning through hole 4, the front chamfers 14 of all the radial pressing blocks 1 are combined to form a front chamfer of the front hole part 4c, the rear grooves 13 of all the radial pressing blocks 1 are combined to form an annular inner groove of the front hole part 4c, the annular inner groove is opposite to the rear end of the sleeve 2 and is used for accommodating a rear buckling edge 2c formed after the rear end of the sleeve 2 is turned over towards the radial direction, the buckling protrusions 12 are radially abutted against the side wall of the sleeve 2 to enable the side wall of the sleeve 2 to be sunken inwards to form a radial inwards folded part 2b for fixing the outer side wall of the end part of the adhesive-pressing rubber pipe 3, the buckling protrusions 12 are staggered with the front end of the sleeve 2 and the front end surface of the rubber pipe 3, and the buckling protrusions 12 are only contacted with the side wall of the sleeve 2.

The front chamfer 14 of the radial pressing block 1 is over against the fillet end part 2a formed by buckling and pressing the front end of the sleeve 2, the front end face of the rubber tube 3 is positioned at the axial position of the front chamfer 14, and the fillet end part 2a of the sleeve 2 is positioned at the position of the front chamfer 14 after buckling and pressing deformation, so that structural interference is prevented.

As shown in fig. 5, a transition chamfer 15 is provided between the front side of the rear groove 13 and the inner diameter surface of the radial protrusion 11, and the angle of the transition chamfer 15 is matched with the warping angle of the rear warped side 2c of the sleeve 2, so that the rear warped side 2c extends into the rear groove 13.

As shown in fig. 4, the junction between the radial protrusion 11 of the radial pressing block 1 and the pressing surface thereof is provided with a rear chamfer 4b.

In the buckling and pressing process, all the radial pressing blocks 1 move inwards along the radial direction, the buckling and pressing protrusions 12 are pressed against the side wall of the sleeve 2 along the radial direction to enable the side wall of the sleeve 2 to be sunken inwards to form a radial inward-folded portion 2b for fixing the outer side wall of the end portion of the adhesive hose 3, namely, the side wall of the sleeve 2 is driven to deform and press into the outer side wall of the adhesive hose 3 and is fixedly combined with the outer side wall of the adhesive hose 3, the front end face of the adhesive hose 3 is avoided, the front end face of the adhesive hose 3 cannot be directly subjected to extrusion acting force, meanwhile, the rear end of the sleeve 2 is turned over towards the outer radial direction to form a rear buckling edge 2c, the rear buckling edge 2c extends into the rear groove 13, the fact that the adhesive hose 3 is directly pressed into the end edge of the sleeve 2 to cause damage to the adhesive hose 3 is prevented, the adhesive hose 3 is well protected, and the sleeve 2 is also well protected.

As shown in fig. 5, after crimping, a rounded end 2a is formed at the front end of the sleeve 2, and the front end surface of the rubber tube 3 is located within the rounded end 2a and has a certain gap with the inner wall of the sleeve 2, so that the front end surface of the rubber tube 3 is protected to a certain extent.

The above are preferred embodiments of the present invention, and those skilled in the art can make various changes or improvements on the above embodiments without departing from the general concept of the present invention, and such changes or improvements should fall within the protection scope of the present invention.

Claims

1. The utility model provides an industry pipe withholds mould, its radial withholds the end in withholding machine of installing, it includes a plurality of along radial equipartitions, withholds metal form sleeve (2) radial briquetting (1) in rubber tube (3) tip when withholding, the withholds face of all radial briquetting (1) and makes up under withholding the state and form one and hold positioning hole (4) that rubber tube (3) passed, its characterized in that:

the position of the sleeve (2) is set to be front, a radial protrusion (11) protruding in the radial direction is arranged on the front side of the buckling surface of the radial pressing block (1), a front chamfer (14) is arranged at the junction of the inner diameter surface of the radial protrusion (11) and the front end surface of the radial pressing block (1), a rear groove (13) is arranged at the position close to the rear of the inner diameter surface of the radial protrusion (11), and a buckling protrusion (12) protruding in the radial direction from the inner diameter surface of the radial protrusion (11) is formed between the front chamfer (14) and the rear groove (13);

under the buckling state, the inner diameter surfaces of radial protrusions (11) of all radial pressing blocks (1) are combined to form a front hole part (4 c) of a positioning through hole (4), front chamfers (14) of all radial pressing blocks (1) are combined to form a front chamfer of the front hole part (4 c), rear grooves (13) of all radial pressing blocks (1) are combined to form an annular inner groove of the front hole part (4 c), the annular inner groove is opposite to the rear end of the sleeve (2) and accommodates a rear warping edge (2 c) formed after the rear end of the sleeve (2) is turned over in the outer diameter direction, the buckling protrusions (12) radially abut against the side wall of the sleeve (2) to enable the side wall of the sleeve (2) to be inwards sunken to form a radial inward folding part (2 b) for fixing the outer side wall of the end part of the adhesive-pressure rubber pipe (3), and the buckling protrusions (12) are staggered with the front end and the rear end of the sleeve (2) and the position of the front end surface of the rubber pipe (3).

2. The industrial pipe crimping die of claim 1, wherein: and a transition chamfer (15) is arranged between the front side of the rear groove (13) and the inner diameter surface of the radial bulge (11).

3. The industrial pipe crimping die of claim 2, wherein: the angle of the transition chamfer (15) is matched with the warping angle of the rear warping edge (2 c) of the sleeve (2).

4. The industrial pipe crimping die of claim 1, wherein: the front chamfer (14) of the radial pressing block (1) is opposite to a fillet end part (2 a) formed by buckling and pressing the front end of the sleeve (2), and the front end face of the rubber tube (3) is positioned at the axial position of the front chamfer (14).

5. The industrial pipe crimping die of claim 1, wherein: the junction of the radial bulge (11) of the radial pressing block (1) and the pressing surface thereof is provided with a rear chamfer (4 b).

6. The industrial pipe crimping die of any one of claims 1-5, wherein: the radial cross section structure of the radial pressing blocks (1) is fan-shaped, and all the radial pressing blocks (1) are mutually spliced to form a circular sleeve-shaped structure during buckling.