CN104175595B - The forcing press twin-stage die-cushion of the two guide post of inner band - Google Patents
The forcing press twin-stage die-cushion of the two guide post of inner band Download PDFInfo
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- CN104175595B CN104175595B CN201410351448.8A CN201410351448A CN104175595B CN 104175595 B CN104175595 B CN 104175595B CN 201410351448 A CN201410351448 A CN 201410351448A CN 104175595 B CN104175595 B CN 104175595B
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Abstract
The forcing press twin-stage die-cushion of the two guide post of a kind of inner band, comprise fuselage, installed surface is fixed with lower cylinder body and upper cylinder body below the working plate of fuselage, the lower piston be slidably connected with its inwall face of cylinder is provided with in lower cylinder body, lower piston is combined by round nut by the guide post be radially symmetrical set, upper piston, and this upper piston slides at inner cylinder face; Upper flange is by the upper surface of screw fastening in upper cylinder body; Bolt by nut by fastening to lower cylinder body, upper cylinder body and spacer flanger and be combined into a twin-stage one-way cylinder; Pad is fixed on the upper surface of upper piston by screw, and the upper plane of pad is also fastened with supporting plate by screw, and the corresponding die-cushion centre hole of upper surface of supporting plate is provided with top board and upper cushion pad.The invention solves existing forcing press die-cushion size large, install and difficult in maintenance, offset load resistance is poor, stampings or foreign matter need the problems such as whole replacing after easily entering die-cushion inside, supporting plate distortion, practical.
Description
Technical field
The present invention relates to a kind of punching machine die-cushion, specifically the forcing press twin-stage die-cushion of the two guide post of a kind of inner band.
Background technology
General mechanical press die-cushion, is all mounted in the cavity below workbench, and due to structural design, this cavity size is all compact usually, and meet forcing press die-cushion Capability Requirement, usual die-cushion is designed to the structure shown in Fig. 4.The cylinder block 39 of this die-cushion and piston 38 due to size larger, when assembling, need first piston 38 to be loaded cylinder block 39, then the sole position of fuselage 34 is fixed on, then above fuselage workbench by support pad 36 through the upper plane of screw fastening in piston 38, then air cushion top board 35 is fixed on the upper surface of support pad 36, finally being divided into the flange 37 of two halves to be fixed on cylinder block 39 from fore-and-aft direction below the workbench of fuselage 34.
The vapour-pressure type die-cushion of this structure, has following distinct disadvantage:
1) installation, maintenance is very difficult, once die-cushion breaks down, during as phenomenons such as gas leakage, seizure of pistons, need first above fuselage workbench, air cushion top board 35, support pad 36 once to be split out, again remaining part is split out in the lump from under-chassis, due to limited space, operating difficulties;
2) owing to lacking effective guiding, when piston 38 move in cylinder block 39 have some setbacks or bear unbalance loading time, easily pull cylinder surface or fine and close sealing damage and leak gas.
3) the machine worktable fit beneath that is stressed space constraint, the design of die-cushion ability is limited.
4) air cushion top board 35 and the direct contact impact of thimble, easily distortion causes that pressure-pad-force is uneven even cannot be used, once there is this situation, just needs to change the new air cushion top board 35 of monoblock, causes unnecessary waste;
5) die-cushion operationally, and stampings or other foreign matters easily fall into die-cushion inside, cause cylinder body to pull and even damage seal, and leading machine processed cannot normally use.
Therefore, further improvement is necessary.
Summary of the invention
Object of the present invention aims to provide a kind of simple and reasonable, and dependable performance, can meet general forcing press die-cushion Capability Requirement, is easy to again installation, safeguards, maintains and the die-cushion structure leading precise and stable, to overcome weak point of the prior art.
The forcing press twin-stage die-cushion of the two guide post of a kind of inner band designed by this object, comprise fuselage, installed surface is fixed with lower cylinder body and upper cylinder body below the working plate of fuselage, it is characterized in that: in lower cylinder body, be provided with the lower piston be slidably connected with its inwall face of cylinder, lower piston is combined by round nut by the guide post be radially symmetrical set, upper piston, and this upper piston slides at inner cylinder face; Upper flange is by the upper surface of screw fastening in upper cylinder body; Bolt by nut by fastening to lower cylinder body, upper cylinder body and spacer flanger and be combined into a twin-stage one-way cylinder; Pad is fixed on the upper surface of upper piston by screw, and the upper plane of pad is also fastened with supporting plate by screw, and the corresponding die-cushion centre hole of upper surface of supporting plate is provided with top board and upper cushion pad.
Described lower cylinder body is fixedly installed on the installed surface below fuselage workbench, is fixed with lower cushion pad bottom it, and the bottom of lower cylinder body and rearward portion are also respectively equipped with lower discharge outlet and lower air inlet.
The bore area of described lower piston and lower cylinder body is slidably matched and is provided with Y type piston packing and wear-resistant guiding band in its outer circumference surface.
Described lower piston is radially symmetrically arranged with the hole with guide post stationary fit, is provided with O shape circle in this hole; The airtight working chamber of one-level of the cavity composition die-cushion between described lower cylinder body, lower piston and Y type piston packing.
Described spacer flanger is axially arranged with the first row gas port of lower pouring orifice, upper discharge outlet, enterprising gas port and band the first muffler; Spacer flanger is also symmetrically arranged with the hole moved with guide post and coordinate, Y type piston rod packing circle and guidance tape is provided with in this hole, the external cylindrical surface up and down of spacer flanger respectively with the inner cylinder face stationary fit of upper cylinder body, lower cylinder body, be wherein also provided with O between spacer flanger and upper cylinder body and enclose.
The outer circumference surface of described upper piston and upper cylinder body are slidably matched and are provided with Y type piston packing and wear-resistant guiding band thereon, and upper piston is radially symmetrically arranged with the hole with guide post stationary fit, are provided with O shape circle in this hole; The airtight working chamber in the second level of the cavity composition die-cushion between described Y type piston packing, Y type piston rod packing circle, upper piston and spacer flanger.
Described splint upper surface corresponding die-cushion platen centre hole is provided with bar shaped top board, and the upper surface of this supporting plate is also equiped with cushion pad.
Described upper flange is laterally provided with the second exhaust port of having installed the second muffler, and described flange is also provided with pouring orifice.
Above-mentioned part all can load one by one above the workbench cavity of fuselage, and is finally combined into a complete twin-stage die-cushion.
The present invention, by the improvement of said structure, has the following advantages:
1) twin-stage die-cushion design, compact conformation, required assembly space is little, and under same ability, size is only 70% of traditional monopole air cushion;
2) part of all component all can load one by one easily above the working plate of fuselage, and achieve the possibility of confined space assembling below fuselage working plate, installation, maintenance dismounting is all very convenient;
3) inside arranges two guide post, adds the piston guide of twin-stage expanded letter tape guide band, operates steadily, leads accurately, have higher offset load resistance during die-cushion work;
4) discharge outlet, the pouring orifice of special setting, makes the maintenance of die-cushion, maintenance becomes simple, convenience;
5) only need stay very little gap between upper flange and pad, when preventing die-cushion operation, stampings and other foreign matters enter air cushion inside, cause scratch even seal failure;
6) pad coordinates with the small―gap suture of upper flange and exhaust outlet that muffler is housed is arranged, and avoids tiny waste material that stamping press is or other foreign matters enter into die-cushion inside;
7) supporting plate top is provided with top board, and during use, cover top surface directly contacts with thimble, top board and supporting plate separate design, once wearing and tearing or distortion, only need change corresponding top board, without the need to changing whole supporting plate, economic, practical and easy to maintenance.
Comprehensively above-mentioned, the forcing press die-cushion size that present invention efficiently solves prior art is large, install and difficult in maintenance, offset load resistance is poor, stampings or foreign matter need the series of problems such as whole replacing after easily entering die-cushion inside, supporting plate distortion, have simple and reasonable, dependable performance, general forcing press die-cushion Capability Requirement can be met, be easy to again to install, safeguard, maintenance and the feature such as precise and stable that leads, practical.
Accompanying drawing explanation
Fig. 1 is one embodiment of the invention structural representation.
Fig. 2 is along A-A line cross-sectional view in Fig. 1.
Fig. 3 is that the P of Fig. 2 is to structural representation.
Fig. 4 is the structural representation of prior art.
In figure: 1 is lower cylinder body; 2 is lower cushion pad; 3 is lower piston; 4 is round nut; 5 is guide post; 6 is O shape circle; 7 is Y shape piston packing; 8 is wear-resistant guiding band; 9 is first row gas port; 10 is the first muffler; 11 is Y-shaped piston rod seal circle; 12 is O circle; 13 is guidance tape; 14 is the second muffler; 15 is upper piston; 16 is second exhaust port; 17 is working plate; 18 is fuselage; 19 is pad; 20 is supporting plate; 21 is top board; 22 is upper cushion pad; 23 is upper pouring orifice; 24 is upper flange; 25 is upper cylinder body; 26 is lower pouring orifice; 27 is spacer flanger; 28 is upper discharge outlet; 29 is enterprising gas port; 30 is lower air inlet; 31 is lower discharge outlet; 32 is nut; 33 is bolt.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
See Fig. 1-Fig. 3, the forcing press twin-stage die-cushion of the two guide post of this inner band, comprise fuselage 18, below the working plate 17 of fuselage 18, installed surface is fixed with lower cylinder body 1 and upper cylinder body 25, the lower piston 3 be slidably connected with its inwall face of cylinder is provided with in lower cylinder body 1, lower piston 3 is combined by round nut 4 by the guide post 5 be radially symmetrical set, upper piston 15, and this upper piston 15 slides at inner cylinder face; Upper flange 24 is by the upper surface of screw fastening in upper cylinder body 25; Bolt 33 by nut 32 by fastening to lower cylinder body 1, upper cylinder body 25 and spacer flanger 27 and be combined into a twin-stage one-way cylinder; Pad 19 is fixed on the upper surface of upper piston 15 by screw, and the upper plane of pad 19 is also fastened with supporting plate 20 by screw, and the corresponding die-cushion centre hole of upper surface of supporting plate 20 is provided with top board 21 and upper cushion pad 22.
Lower cylinder body 1 is fixedly installed on the installed surface below fuselage 18 workbench, is fixed with lower cushion pad 2 bottom it, and the bottom of lower cylinder body 1 and rearward portion are also respectively equipped with lower discharge outlet 31 and lower air inlet 30.Lower piston 3 is slidably matched with the bore area of lower cylinder body 1 and is provided with Y type piston packing 7 and wear-resistant guiding band 8 in its outer circumference surface.
Lower piston 3 is radially symmetrically arranged with the hole with guide post 5 stationary fit, is provided with O shape circle 6 in this hole; The airtight working chamber of one-level of the cavity composition die-cushion between described lower cylinder body 1, lower piston 3 and Y type piston packing 7.
Spacer flanger 27 is axially arranged with the first row gas port 9 of lower pouring orifice 26, upper discharge outlet 28, enterprising gas port 29 and band the first muffler 10; Spacer flanger 27 is also symmetrically arranged with the hole that coordinate dynamic with guide post 5, Y type piston rod packing circle 11 and guidance tape 13 is provided with in this hole, the external cylindrical surface up and down of spacer flanger 27 respectively with the inner cylinder face stationary fit of upper cylinder body 25, lower cylinder body 1, be wherein also provided with O between spacer flanger 27 and upper cylinder body 25 and enclose 12.
The outer circumference surface of upper piston 15 and upper cylinder body 25 are slidably matched and are provided with Y type piston packing 7 and wear-resistant guiding band 8 thereon, and upper piston 15 is radially symmetrically arranged with the hole with guide post 5 stationary fit, are provided with O shape circle 6 in this hole; The airtight working chamber in the second level of the cavity composition die-cushion between described Y type piston packing 7, Y type piston rod packing circle 11, upper piston 15 and spacer flanger 27.
In said structure, supporting plate 20 upper surface corresponding die-cushion platen centre hole is provided with bar shaped top board 21, and the upper surface of this supporting plate 20 is also equiped with cushion pad 22.Upper flange 24 is laterally provided with the second exhaust port 16 of having installed the second muffler 14, and described flange 24 is also provided with pouring orifice 23.
Above-mentioned part all can load one by one above the workbench cavity of fuselage 18, and is finally combined into a complete twin-stage die-cushion.
The forcing press twin-stage die-cushion assemble sequence of the two guide post of inner band of this structure is as follows:
1) lower cushion pad 2 is fixedly installed in the corresponding position of lower cylinder body 1 cylinder bottom, then lower cylinder body 1 is fixed on the corresponding installed surface of fuselage 18;
2) in the respective aperture of lower piston 3, install Y type piston packing 7, wear-resistant guiding band 8 and O shape circle 6 respectively, then guide post 5 is loaded in the hole of lower piston 3, and adopt round nut 4 fixation; Again the spacer flanger 27 installing Y type piston rod packing circle 11, guidance tape 13 and O circle 12 is put by shown in Fig. 1; Finally this assembly being pressed position, direction shown in Fig. 1 loads in lower cylinder body 1 respective aperture;
3) upper cylinder body 25 inner cylinder face is inserted in the corresponding external cylindrical surface of spacer flanger 27;
4) in upper piston 15 respective aperture, install Y type piston packing 7, wear-resistant guiding band 8 and O shape circle 6 respectively, then upper piston 15 is inserted in guide post 5, and it is fixed to adopt round nut 4 to combine;
5) upper flange 24 is screwed upper surface at upper cylinder body 25 by position, direction shown in Fig. 1; Then bolt 33 and nut 32 is adopted upper flange 24, upper cylinder body 25, spacer flanger 27 and lower cylinder body 1 to be firmly grouped together;
6) screw and upper piston 15 is adopted to fix by position, direction shown in Fig. 1 pad 19;
7) supporting plate 20 is fixed on the upper plane of pad 19;
8) top board 21, upper cushion pad 22 are fixed on the relevant position of supporting plate 20;
9) finally in first row gas port 9, second exhaust port 16, the first muffler 10 and the second muffler 14 is equiped with respectively, at upper pouring orifice 23 and lower pouring orifice 26 connects copper sleeve and oil pipe is connected with lubricating pump; At enterprising gas port 29, lower air inlet 30 connects joint and tracheae is connected with die-cushion air compression system; Stop valve is connected in upper discharge outlet 28, lower discharge outlet 31.
When the forcing press twin-stage die-cushion of the two guide post of inner band of this structure works, compressed air enters the cavity of resorption of upper piston 15 and lower piston 2 from enterprising gas port 29, lower air inlet 20 simultaneously, under compressed air pressure effect, in promotion, lower piston is along guide post 5, upper cylinder body 25 and lower cylinder body 1 inwall upward sliding reposefully, and drive pad 19, supporting plate 20 and top board 21 to move upward, thus the thimble promoting to contact with top board 21 upper surface is up and down, completes die-cushion action during stamping press.
First row gas port 9, second exhaust port 16 being equiped with respectively the first muffler 10 with the second muffler 14 is communicated with air, namely effectively prevent issuable negative pressure when twin-stage die-cushion works, also can prevent punching press foreign matter suck-back from entering in die-cushion, and the noise that when reducing work, exhaust produces environment; The effect of upper and lower cushion pad prevents die-cushion activity to directly clashing into generation noise and spacing during high-low limit position; The setting of upper discharge outlet 28, lower discharge outlet 31, facilitates the inside ponding excretion of die-cushion; The upper pouring orifice 23 arranged, lower pouring orifice 26 are connected with lubrication pumping, facilitate oil injecting lubricating.
The forcing press twin-stage die-cushion of the two guide post of inner band of this structure compared with prior art, has the following advantages:
1) twin-stage die-cushion design, compact conformation, required assembly space is little, and under same ability, size is only 70% of traditional monopole air cushion;
2) part of all component all can load one by one easily above the working plate of fuselage, and achieve the possibility of confined space assembling below fuselage working plate, installation, maintenance dismounting is all very convenient;
3) inside arranges two guide post, adds the piston guide of twin-stage expanded letter tape guide band, operates steadily, leads accurately, have higher offset load resistance during die-cushion work;
4) discharge outlet, the pouring orifice of special setting, makes the maintenance of die-cushion, maintenance becomes simple, convenience;
5) only need stay very little gap between upper flange and pad, when preventing die-cushion operation, stampings and other foreign matters enter air cushion inside, cause scratch even seal failure;
6) pad coordinates with the small―gap suture of upper flange and exhaust outlet that muffler is housed is arranged, and avoids tiny waste material that stamping press is or other foreign matters enter into die-cushion inside;
7) supporting plate top is provided with top board, and during use, cover top surface directly contacts with thimble, top board and supporting plate separate design, once wearing and tearing or distortion, only need change corresponding top board, without the need to changing whole supporting plate, economic, practical and easy to maintenance.
Comprehensively above-mentioned, this structure efficiently solve the forcing press die-cushion size of prior art large, install and difficult in maintenance, offset load resistance is poor, stampings or foreign matter need the series of problems such as whole replacing after easily entering die-cushion inside, supporting plate distortion, have simple and reasonable, dependable performance, general forcing press die-cushion Capability Requirement can be met, be easy to again to install, safeguard, maintenance and the feature such as precise and stable that leads, practical.
Above-mentioned is preferred version of the present invention, and those of ordinary skill in the art, to its simple modification or transformation, all drop within protection scope of the present invention.
Claims (4)
1. the forcing press twin-stage die-cushion of the two guide post of inner band, comprise fuselage (18), working plate (17) the below installed surface of fuselage (18) is fixed with lower cylinder body (1) and upper cylinder body (25), the lower piston (3) be slidably connected with its inwall face of cylinder is provided with in lower cylinder body (1), the radial direction of lower piston (3) is symmetrically set with guide post (5) and upper piston (15), lower piston (3), guide post (5) and upper piston (15) are combined by round nut (4), this upper piston (15) slides at inner cylinder face, upper flange (24) is by the upper surface of screw fastening in upper cylinder body (25), bolt (33) by nut (32) by fastening to lower cylinder body (1), upper cylinder body (25) and spacer flanger (27) and be combined into a twin-stage one-way cylinder, pad (19) is fixed on the upper surface of upper piston (15) by screw, the upper plane of pad (19) is also fastened with supporting plate (20) by screw, and the corresponding die-cushion centre hole of upper surface of supporting plate (20) is provided with top board (21) and upper cushion pad (22),
It is characterized in that: described lower cylinder body (1) is fixedly installed on the installed surface below fuselage (18) workbench, be fixed with lower cushion pad (2) bottom it, the bottom of lower cylinder body (1) and rearward portion are also respectively equipped with lower discharge outlet (31) and lower air inlet (30);
Described lower piston (3) is slidably matched with the bore area of lower cylinder body (1) and is provided with Y type piston packing (7) and wear-resistant guiding band (8) in lower piston (3) outer circumference surface;
Described lower piston (3) is radially symmetrically arranged with the hole with guide post (5) stationary fit, is provided with O shape circle (6) in this hole; The airtight working chamber of one-level of the cavity composition die-cushion between described lower cylinder body (1), lower piston (3) and Y type piston packing (7);
Described spacer flanger (27) is axially arranged with the first row gas port (9) of lower pouring orifice (26), upper discharge outlet (28), enterprising gas port (29) and band the first muffler (10); Spacer flanger (27) is also symmetrically arranged with the hole that coordinate dynamic with guide post (5), Y type piston rod packing circle (11) and guidance tape (13) is provided with in this hole, the external cylindrical surface up and down of spacer flanger (27) respectively with the inner cylinder face stationary fit of upper cylinder body (25), lower cylinder body (1), be wherein also provided with O between spacer flanger (27) and upper cylinder body (25) and enclose (12).
2. the forcing press twin-stage die-cushion of the two guide post of inner band according to claim 1, it is characterized in that outer circumference surface and the upper cylinder body (25) of described upper piston (15) are slidably matched and are provided with Y type piston packing (7) and wear-resistant guiding band (8) in upper piston (15), upper piston (15) is radially symmetrically arranged with the hole with guide post (5) stationary fit, is provided with O shape circle (6) in this hole; The airtight working chamber in the second level of the cavity composition die-cushion between described Y type piston packing (7), Y type piston rod packing circle (11), upper piston (15) and spacer flanger (27).
3. the forcing press twin-stage die-cushion of the two guide post of inner band according to claim 1 or 2, it is characterized in that described supporting plate (20) upper surface corresponding die-cushion platen centre hole is provided with bar shaped top board (21), the upper surface of this supporting plate (20) is also equiped with cushion pad (22).
4. the forcing press twin-stage die-cushion of the two guide post of inner band according to claim 3, it is characterized in that described upper flange (24) is laterally provided with the second exhaust port (16) of having installed the second muffler (14), described upper flange (24) is also provided with pouring orifice (23).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410351448.8A CN104175595B (en) | 2014-07-22 | 2014-07-22 | The forcing press twin-stage die-cushion of the two guide post of inner band |
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| CN201410351448.8A CN104175595B (en) | 2014-07-22 | 2014-07-22 | The forcing press twin-stage die-cushion of the two guide post of inner band |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104875418B (en) * | 2015-04-29 | 2016-11-09 | 深圳市优米佳自动化设备有限公司 | A kind of pressure uniform large area low pressure press structure |
| CN113059047A (en) * | 2021-03-19 | 2021-07-02 | 沃得精机(中国)有限公司 | Movable cylinder arrangement structure |
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| JP3295927B2 (en) * | 1997-01-20 | 2002-06-24 | 三菱マテリアル株式会社 | Molding equipment for powder molding |
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| FR2505436A1 (en) * | 1981-05-07 | 1982-11-12 | Warnke Umformtech Veb K | PRESSURE RELIEF VALVE FOR HYDROPNEUMATIC STAMPING CUSHIONS |
| CN101920577A (en) * | 2009-06-16 | 2010-12-22 | 周敏生 | Novel bidirectional air cushion structure of pressure machine |
| CN201685474U (en) * | 2010-05-28 | 2010-12-29 | 江苏扬力集团有限公司 | Pressure machine combined type air cushion |
| CN201800255U (en) * | 2010-09-02 | 2011-04-20 | 广东联兴锻压机床实业有限公司 | Double-layer air cushion device for press |
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