CN101862788A

CN101862788A - Pipe fitting punch die based on flexible slide block

Info

Publication number: CN101862788A
Application number: CN 201010213685
Authority: CN
Inventors: 李小平; 彭成允; 陈元芳; 唐丽文; 代兵; 张侠; 吴善勇
Original assignee: Chongqing University of Technology
Current assignee: Chongqing University of Technology
Priority date: 2010-06-30
Filing date: 2010-06-30
Publication date: 2010-10-20
Anticipated expiration: 2030-06-30
Also published as: CN101862788B

Abstract

The invention relates to a pipe fitting punch die based on a flexible slide block and a method. The die comprises a lower die holder, a position pipe, a drain plug, a terrace die, a die, a fixed plate, a base plate, a spring, a push rod, a die handle, an upper die holder, another fixed plate, a floating wedge, a supporting seat, polyamine, a filling block, solid particles and the like, wherein an inner cavity of the position pipe is internally provided with the solid particles, the terrace die vertically arranged is movably arranged in a radial hole of the position pipe, one end of the terrace die is positioned among the solid particles, the upper end of the floating wedge vertically arranged is connected on the upper die holder, the lower end thereof passes through the position pipe to be contacted with the solid particles, the filling block is arranged between the lower die holder and the position pipe to support the position pipe, and the position of the filling block corresponds to the position of the terrace die. The invention drives the terrace die to move outward to punch by taking the solid particles as the slide block, is particularly suitable for multi holes to simultaneously punch outward, has simple structure and high efficiency, and is easy to take pieces due to outward bristles of the punch.

Description

A kind of pipe fitting punch die based on flexible slide block

Technical field

The invention belongs to the punching die technology, be specifically related to a kind ofly drive punch piercing and shaping die mould as flexible slide block with solid particle.

Background technology

The processing type hole mainly is a machining on tubing, comprises boring, hole milling etc., and the method with punching during production in enormous quantities replaces methods such as boring and hole milling, the characteristics that have the production efficiency height, cut down finished cost.At present for the processing method of punching, when common pipe fitting is carried out punching processing, structure commonly used be punch outside, die is interior, punch ecto-entad under external force impacts pipe fitting and forms punching hole; But, this kind punching press sky, pipe fitting burr after punching is inside, is in the inwall of pipe fitting, causes the punching quality difference and pipe fitting is had damage; After the punching when burr is excessive, burr just contacts with die in the pipe fitting or interferes, pipe fitting takes out difficulty from mould.Simultaneously, during commonly used punching processing, usually can only process a single hole, seldom have device can process the hole of a plurality of different azimuth simultaneously, cause working (machining) efficiency low, waste of manpower and power supply power have also increased the cost of punching.

Summary of the invention

The present invention is directed to existing mold punching quality difference has insoluble problems such as damage and pickup difficulty to pipe fitting, and provide a kind of and drive the outside punching of punch as flexible slide block with solid particle,

Technical scheme of the present invention is as follows: a kind of pipe fitting punch die based on flexible slide block, comprise die shoe, die shank and upper bolster, and die shank is arranged on the upper bolster; It is characterized in that: an end of positioning pipe is arranged on die shoe turnably with pin, in the inner chamber of positioning pipe, is provided with solid particle; The plug of solid particle through two ends is enclosed in the inner chamber of positioning pipe; The vertical punch that is provided with is movably arranged in the radial hole of positioning pipe, and an end of punch is between solid particle, and the other end acts on when the punching as pierce punch and treats on the punching pipe fitting; The die that is provided with endoporus is corresponding with the position of punch, is connected on upper bolster or the die shoe; The upper end of the vertical unsteady wedge that is provided with is connected on the upper bolster, and its lower end is passed positioning pipe and contacted with solid particle; On the die shoe and between the positioning pipe, cushion block is set to support positioning pipe, the position of cushion block is corresponding with the position of punch.

Further feature is: in the hole of die, be provided with push rod, the push rod upper end is provided with spring, and spring withstands between push rod and the upper bolster.

The upper end of unsteady wedge is connected on the upper bolster by depression bar.

Position corresponding with unsteady wedge is provided with the polyamine fat pad, and the polyamine fat pad is arranged between positioning pipe and the die shoe.

Die is connected on the fixed head, and fixed head is installed on the backing plate, and backing plate is installed on the upper bolster.

Improvement of the present invention: replace slide block with solid particle medium, when patrix promoted depression bar and moves downward, wedge was pressed in the solid particle medium, and solid particle just promotes punch and upwards carries out punching like this.

The present invention drives the outside motion punching of punch to making slide block with solid particle, makes burr faces outwards, is convenient to pickup, and mould structure is simple, is particularly suitable for porous outwards punching simultaneously; Can improve working (machining) efficiency, cut down finished cost.The conventional rigid slide block is difficult to realize.

Description of drawings

Fig. 1 is a kind of pipe fitting punch die based on flexible slide block of the present invention.

Among the figure: 1-die shoe, 2-positioning pipe, 3-plug, 4-punch, 5-die, 6-fixed head, 7-backing plate, 8-push rod, 9-spring, 10-die shank, 11-upper bolster, 12-fixed head, 13-depression bar, 14-wedge floats, 15-pin, 16-supporting base, 17-Polyurethane pad, 18-cushion block, 19-solid particle, 20-treat the punching pipe fitting.

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The specific embodiment

Referring to Fig. 1, be depicted as a kind of pipe fitting punch die of the present invention based on flexible slide block, comprise die shoe 1, upper bolster 11, die shank 10 is arranged on the upper bolster 11, applies active force on upper bolster 11 by die shank 10 during punching press; Positioning pipe 2 usefulness pins 15 are arranged on turnably on die shoe 1, are connected on the die shoe 1 by supporting base 16 among the figure, can rotate within the specific limits around pin 15; In the inner chamber of positioning pipe 2, be provided with solid particle 19; The plug 3 of solid particle 19 through two ends is enclosed in the inner chamber of positioning pipe 2; The vertical punch 4 that is provided with is movably arranged in the radial hole of positioning pipe 2, and an end of punch 4 is between the slit of solid particle 19, and its other end acts on when the punching as pierce punch and treats on the punching pipe fitting 20.The die 5 that is provided with endoporus is corresponding with the position of punch 4, and several dies 5 can partly be connected on the upper bolster 11, and part is connected die shoe 1; Die 5 among the figure at first is connected on the fixed head 6, and fixed head 6 is installed on the backing plate 7, and backing plate 7 is installed on the upper bolster 11, and die 5 is connected on the upper bolster 11 by fixed head 6, backing plate 7; The endoporus of die 5 connects the hole as dashing, and can hold the slag charge that punching produces.The upper end of the vertical unsteady wedge 14 that is provided with is connected on the upper bolster 11, or is connected on the upper bolster 11 by the depression bar shown in the figure 13, and its lower end is passed positioning pipe 2 and contacted with solid particle 19; Depression bar 13 is connected on the upper bolster 11, perhaps be connected on the upper bolster 11 by backing plate 7, fixed head 12, apply active force on upper bolster 11 time at die shank 10, can act on the wedge 14 that floats, the wedge 14 that floats is stretched into downwards in the solid particle 19, promote and extrusion solid particle 19 produces pressure, move upward, act on as the drift of punching and treat on the punching pipe fitting 20 to promote punch 4.On the die shoe 1 and between the positioning pipe 2, cushion block 18 is set to support positioning pipe 2, the position of cushion block 18 is corresponding with the position of punch 4, preferably over against punch 4.The wedge 14 that floats is subjected to downward pressure, by solid particle 19 conversion power transmission directions, promotes punch 4 punchings; Piercing punch 4 is pushed the work forward by solid particle 19.

In the hole of die 5, be provided with push rod 8, push rod 8 upper ends are provided with spring 9, and push rod 8 and spring 9 can cushion the punching active force of punch 4; Spring 9 withstands between push rod 8 and the upper bolster 11.

Position corresponding with unsteady wedge 14 is provided with polyamine fat pad 17, and polyamine fat pad 17 is arranged between positioning pipe 2 and the die shoe 1, the auxiliary power that withstands shocks.

When carrying out punching, will treat that punching pipe fitting 20 is installed on the positioning pipe 2, adjust the position for the treatment of punching pipe fitting 20, positioning pipe 2; Act on the die shank 10 by external force, when die shank 10 promotion upper bolsters 11 moved downward, the wedge 14 that floats also moved downward, and is pressed between the slit of solid particle 19, moves upward thereby promote punch 4 by solid particle 19, finishes the punching to pipe fitting.Treat that punching pipe fitting 20 is fluctuated by positioning pipe 2 drives at work, is beneficial to pickup and balance punching power.

Should there be good sealing property in the space at this mould solid particle 9 places, and float simultaneously wedge 14 and die 5 move downward should be coordinated to carry out; When punching finished, positioning pipe 2 can float to rotate and be convenient to pickup; The supporting role of the cushion block 18 under the positioning pipe 2 can be resisted the blanking pressure in the stamping-out process, effectively improves the life-span of mould.

Solid particle 19 of the present invention mainly adopts steel ball, steel ball, Metal Ball or the suitable particle of other performances, satisfies the needs of moulding extruding.

Claims

1. the pipe fitting punch die based on flexible slide block comprises die shoe (1), die shank (10) and upper bolster (11), and die shank (10) is arranged on the upper bolster (11); It is characterized in that: an end of positioning pipe (2) is arranged on die shoe (1) turnably with pin (15), in the inner chamber of positioning pipe (2), is provided with solid particle (19); Solid particle (19) is enclosed in the inner chamber of positioning pipe (2) through the plug (3) at two ends; The vertical punch (4) that is provided with is movably arranged in the radial hole of positioning pipe (2), and an end of punch (4) is positioned between the solid particle (19), and the other end acts on when the punching as pierce punch and treats on the punching pipe fitting (20); The die (5) that is provided with endoporus is corresponding with the position of punch (4), is connected upper bolster (11) or up and down on the die holder (1); The upper end of the vertical unsteady wedge (14) that is provided with is connected on the upper bolster (11), and its lower end is passed positioning pipe (2) and contacted with solid particle (19); On die shoe (1) and between the positioning pipe (2), cushion block (18) is set to support positioning pipe (2), the position of cushion block (18) is corresponding with the position of punch (4).

2. a kind of pipe fitting punch die according to claim 1 based on flexible slide block, it is characterized in that: in the hole of die (5), be provided with push rod (8), push rod (8) upper end is provided with spring (9), and spring (9) withstands between push rod (8) and the upper bolster (11).

3. a kind of pipe fitting punch die based on flexible slide block according to claim 1 and 2 is characterized in that: the upper end of the wedge (14) that floats is connected on the upper bolster (11) by depression bar (13).

4. a kind of pipe fitting punch die according to claim 1 and 2 based on flexible slide block, it is characterized in that: with the corresponding position of unsteady wedge (14), polyamine fat pad (17) is set, and polyamine fat pad (17) is arranged between positioning pipe (2) and the die shoe (1).

5. a kind of pipe fitting punch die based on flexible slide block according to claim 3 is characterized in that: die (5) is connected on the fixed head (6), and fixed head (6) is installed on the backing plate (7), and backing plate (7) is installed on the upper bolster (11).