CN112934996A

CN112934996A - Pre-drawing traction pillow piece for cold-drawing hardware pipe fitting

Info

Publication number: CN112934996A
Application number: CN202110128866.0A
Authority: CN
Inventors: 张辉
Original assignee: Gansu Sanzhiyang Agriculture And Forestry Machinery Co ltd
Current assignee: Gansu Sanzhiyang Agriculture And Forestry Machinery Co ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-06-11

Abstract

The invention relates to the technical field of hardware processing, and discloses a pre-drawing traction pillow piece of a cold-drawn hardware pipe fitting, which comprises a positioning seat, wherein a limiting ring is arranged in the middle of the positioning seat, a supporting layer is arranged on the inner wall of the positioning seat, a plurality of friction units are arranged in the supporting layer, two pressure equalizing pipes are symmetrically arranged in the friction units, spring balls are arranged in the pressure equalizing pipes, balancing rods are movably connected to the opposite sides of the spring balls, a friction column is arranged in the middle of each friction unit, a pillow seat is arranged on the front side of the positioning seat, a connecting seat is fixedly connected to the bottom of the pillow seat, a pillow-shaped liner is arranged at the bottom of the interior of the pillow seat, a plurality of air cushion. This cold drawing five metals pipe fitting's preliminary drawing pulls pillow spare aerifys to the air cavity through the gas filling valve in the cushion, jack-up work piece to preset position, make the pipe fitting location of preliminary drawing faster safer, simultaneously, the kneck lining makes during the cold drawing the flaw that the kneck caused because of the influence of gravity obviously reduce.

Description

Pre-drawing traction pillow piece for cold-drawing hardware pipe fitting

Technical Field

The invention relates to the technical field of hardware processing, in particular to a pre-drawing traction pillow piece of a cold-drawn hardware pipe fitting.

Background

Cold drawing refers to drawing the material at normal temperature to achieve a certain shape and a certain mechanical property, and is a method for obtaining the mechanical property of the hardware different from that of heat treatment.

The existing cold-drawing equipment for the hardware pipe fittings frequently used still depends on too much manpower for assembling and disassembling the dies and the workpieces, the pretreatment before cold-drawing does not have uniform specification and flow, and the fixed installation is rough, so that a large number of defects are generated in the workpiece machining process, the production cost is high, a large number of energy sources are wasted, and the energy conservation and environmental protection are insufficient.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the pre-drawing traction pillow piece for the cold-drawing hardware pipe fitting, which has the advantages of convenience in pre-drawing and reduction of surface blemishes and solves the problems in the background art.

(II) technical scheme

In order to achieve the purpose of reducing surface blemishes conveniently by pre-pulling, the invention provides the following technical scheme: the utility model provides a cold drawing five metals pipe fitting pull pillow spare in advance, includes the positioning seat, the middle part of positioning seat is provided with the spacing collar, the inner wall of positioning seat is provided with the supporting layer, the inside of supporting layer is provided with a plurality of friction unit, the symmetry is provided with two equalizer tubes in the friction unit, there is the spring pearl in the equalizer tube, the opposite side swing joint of spring pearl has the balancing pole, be provided with the friction post in the middle of the friction unit, the front side of positioning seat is provided with the pillow, the bottom fixedly connected with connecting seat of pillow, the inside bottom of pillow is provided with the pillow lining, the top of pillow lining is provided with a plurality of air cushion blocks, the bottom of air cushion block is provided with the inflation valve, be provided with the packing ring in the inflation valve, the upper end of inflation valve is provided with the adjustment post, the upper end fixedly.

Preferably, a plurality of movable grooves are radially formed in the supporting layer.

Preferably, the pressure equalizing pipe is fixedly arranged on the inner wall of the positioning seat, and a knob for adjusting the elasticity of the spring bead is arranged in the pressure equalizing pipe.

Preferably, one end of the balancing rod is connected with the connecting hinge on the spring ball, and the other end of the balancing rod is movably connected with the friction column.

Preferably, the friction column is arranged in a movable groove in the support layer, and the friction column extends into the limit ring and is internally provided with the extrusion grinding head.

Preferably, mutually independent pipelines are arranged in the pillow-shaped lining and are connected with the air cushion block and the connecting seat.

Preferably, the interior of the inflation valve is provided with a vent pipeline, and a spring is arranged in the vent pipeline and movably connected with the adjusting column.

(III) advantageous effects

Compared with the prior art, the invention provides a pre-drawing traction pillow piece of a cold-drawn hardware pipe fitting, which has the following beneficial effects:

1. this pillow spare is pull in pulling in advance of cold drawing five metals pipe fitting is provided with a plurality of friction units through the inside of supporting layer, can prevent effectively that stress from concentrating, in the installation of pulling in advance, prevents effectively that work piece and processingequipment from contacting firmly, forms the surface flaw.

2. This cold drawing five metals pipe fitting's preliminary drawing pulls pillow spare aerifys to the air cavity through the gas filling valve in the cushion, jack-up work piece to preset position, make the pipe fitting location of preliminary drawing faster safer, simultaneously, the kneck lining makes during the cold drawing the flaw that the kneck caused because of the influence of gravity obviously reduce.

Drawings

FIG. 1 is a front view of the main structure of the present invention;

FIG. 2 is a schematic side view of the main structure of the present invention;

FIG. 3 is a schematic view of the friction unit of the present invention;

fig. 4 is a schematic view of the structure of the air cushion block of the present invention.

In the figure: 1. positioning seats; 2. a limiting ring; 3. a support layer; 4. a friction unit; 5. a pressure equalizing pipe; 6. a spring bead; 7. a balancing pole; 8. a friction column; 9. a pillow base; 10. a connecting seat; 11. a pillow-shaped liner; 12. a pneumatic cushion block; 13. an inflation valve; 14. a gasket; 15. adjusting the column; 16. an air cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a pre-drawing traction pillow for a cold-drawing hardware pipe fitting comprises a positioning seat 1, a limiting ring 2 is arranged in the middle of the positioning seat 1, a supporting layer 3 is arranged on the inner wall of the positioning seat 1, a plurality of friction units 4 are arranged inside the supporting layer 3, two pressure equalizing pipes 5 are symmetrically arranged inside the friction units 4, spring beads 6 are arranged inside the pressure equalizing pipes 5, balancing rods 7 are movably connected to opposite sides of the spring beads 6, a friction column 8 is arranged in the middle of the friction units 4, a pillow base 9 is arranged on the front side of the positioning seat 1, a connecting seat 10 is fixedly connected to the bottom of the pillow base 9, a pillow-shaped liner 11 is arranged at the bottom inside the pillow base 9, a plurality of air cushion blocks 12 are arranged above the pillow-shaped liner 11, an inflation valve 13 is arranged at the bottom of the air cushion block 12, a gasket 14 is arranged inside the inflation valve 13, an adjusting column.

Wherein, a plurality of movable grooves are arranged in the supporting layer 3 along the radial direction.

Wherein, the pressure equalizing pipe 5 is fixedly arranged on the inner wall of the positioning seat 1, and a knob for adjusting the elasticity of the spring bead 6 is arranged in the pressure equalizing pipe.

Wherein, one end of the balancing pole 7 is connected with the connecting hinge on the spring ball 6, and the other end is movably connected with the friction column 8.

Wherein, the friction column 8 is arranged in a movable groove in the supporting layer 3, and extends into the spacing ring 2 to be provided with an extrusion grinding head.

Wherein, mutually independent pipelines are arranged in the pillow-shaped liner 11 to connect the air cushion block 12 and the connecting seat 10.

Wherein, the interior of the charging valve 13 is provided with a vent pipeline, and a spring is arranged in the pipeline and is movably connected with the adjusting column 15.

The working principle is as follows: this cold drawing five metals pipe fitting pulls pillow spare in advance, the inside of supporting layer 3 is provided with a plurality of friction unit 4, the symmetry is provided with two equalizer tubes 5 in the friction unit 4, there is spring pearl 6 in the equalizer tube 5, the opposite side swing joint of spring pearl 6 has balancing pole 7, be provided with friction post 8 in the middle of the friction unit 4, when the pipe fitting passes spacing collar 2 and fixes, at first contact 8 inboard extrusion bistriques of friction post, the extrusion bistrique passes through balancing pole 7 and unloads power to spring pearl 6, the inside because of supporting layer 3 is provided with a plurality of friction unit 4, can effectively prevent stress concentration, cause work piece and processingequipment hard contact, form the surface flaw.

This cold drawing five metals pipe fitting pulls pillow spare in advance, the front side of positioning seat 1 is provided with pillow 9, the inside bottom of pillow 9 is provided with pillow shape lining 11, the top of pillow shape lining 11 is provided with a plurality of air cushion blocks 12, the workman need not manual adjustment work piece position before the pipe fitting of pulling out in advance, inflate to air cavity 16 through aeration valve 13 in the air cushion block 12, jack-up work piece to preset position, it is safer to make the pipe fitting location of pulling out in advance faster, simultaneously, the flaw that kneck caused because of the influence of gravity obviously reduces when pillow shape lining 11 makes the cold drawing.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a pillow spare is pull in advance of cold drawing five metals pipe fitting, includes positioning seat (1), its characterized in that: the middle part of the positioning seat (1) is provided with a limiting ring (2), the inner wall of the positioning seat (1) is provided with a supporting layer (3), a plurality of friction units (4) are arranged inside the supporting layer (3), two pressure equalizing pipes (5) are symmetrically arranged in the friction units (4), spring beads (6) are arranged in the pressure equalizing pipes (5), balancing rods (7) are movably connected to opposite sides of the spring beads (6), friction columns (8) are arranged in the middle of the friction units (4), a pillow seat (9) is arranged on the front side of the positioning seat (1), a connecting seat (10) is fixedly connected to the bottom of the pillow seat (9), a pillow-shaped lining (11) is arranged at the bottom inside the pillow seat (9), a plurality of air cushion blocks (12) are arranged above the pillow-shaped lining (11), and an inflation valve (13) is arranged at the bottom of the air cushion blocks (12), a gasket (14) is arranged in the inflation valve (13), an adjusting column (15) is arranged at the upper end of the inflation valve (13), and an air cavity (16) is fixedly connected to the upper end of the adjusting column (15).

2. The pre-drawn traction pillow of the cold-drawn hardware pipe fitting of claim 1, wherein: a plurality of movable grooves are formed in the supporting layer (3) in the radial direction.

3. The pre-drawn traction pillow of the cold-drawn hardware pipe fitting of claim 1, wherein: the pressure equalizing pipe (5) is fixedly arranged on the inner wall of the positioning seat (1), and a knob for adjusting the elasticity of the spring bead (6) is arranged in the pressure equalizing pipe.

4. The pre-drawn traction pillow of the cold-drawn hardware pipe fitting of claim 1, wherein: one end of the balancing rod (7) is connected with the connecting hinge on the spring ball (6), and the other end is movably connected with the friction column (8).

5. The pre-drawn traction pillow of the cold-drawn hardware pipe fitting of claim 1, wherein: the friction column (8) is arranged in a movable groove in the supporting layer (3) and extends into the limiting ring (2) to be internally provided with an extrusion grinding head.

6. The pre-drawn traction pillow of the cold-drawn hardware pipe fitting of claim 1, wherein: the pillow-shaped lining (11) is internally provided with mutually independent pipelines for connecting the air cushion block (12) with the connecting seat (10).

7. The pre-drawn traction pillow of the cold-drawn hardware pipe fitting of claim 1, wherein: the interior of the inflation valve (13) is provided with a vent pipeline, and a spring is arranged in the vent pipeline and movably connected with the adjusting column (15).