CN101733330A - Upper die buffering mechanism of miniature stamping equipment - Google Patents
Upper die buffering mechanism of miniature stamping equipment Download PDFInfo
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- CN101733330A CN101733330A CN200810136207A CN200810136207A CN101733330A CN 101733330 A CN101733330 A CN 101733330A CN 200810136207 A CN200810136207 A CN 200810136207A CN 200810136207 A CN200810136207 A CN 200810136207A CN 101733330 A CN101733330 A CN 101733330A
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- working piston
- sliding sleeve
- piston
- upper die
- buffering mechanism
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Abstract
The invention discloses an upper die buffering mechanism of miniature stamping equipment, which comprises a working piston and a slide element, wherein the slide element can be slidably arranged along the axial direction of the working piston. The upper die buffering mechanism of the miniature stamping equipment is characterized in that the slide element and the working piston are coaxially sleeved at a slide sleeve outside the working piston; and in the whole slide stroke, the lower surface of the slide sleeve is not higher than that of the working piston; the lower end of the working piston is provided with an annular positioning groove; the positioning groove extends along the axial direction of the working piston; the upper end of the slide sleeve is convexly provided with an annular boss which is coaxial with the slide sleeve along the radial direction, and the boss can just slide in the positioning groove. The structure has stable slide, precise matching, convenient installation and low application cost.
Description
Technical field
The present invention relates to a kind of safety device of pressing equipment, more particularly, design a kind of upper die buffering mechanism of mini-type punching equipment.
Background technology
Patrix in the existing mini-type punching equipment is patrix to be fixed on the working piston of cylinder by the cover half device, and under the effect of operating pressure, power can directly be passed to the head of patrix, reaches the requirement of stamped workpieces.This simple in structure, practical, stable, but its maximum weak point is, when patrix in descending process, in case touch any object or run into any resistance, all can produce force-stroke.Therefore, just in case operate miss when touching staff or other article, will cause personal injury or equipment breakdown.
For addressing the above problem, the applicant applied for a patent of invention (200810019940.X in March, 2008, the safety device of miniature single-machine punch equipment), the structure of the pressing equipment that is disclosed in this patent is as shown in Figure 1: working piston (102) is divided into the piston upper boom (103) and the piston lower beam (104) that can longitudinally be slidingly connected mutually, and patrix (105) is fixed on the bottom of piston lower beam (104).On arbitrary parts in piston upper boom (103) and piston lower beam (104) side level sensor (150) is set, is used between induction piston upper boom (103) and the piston lower beam (104) whether relative slip having taken place.In case on behalf of patrix (105), piston lower beam (104) piston upper boom (103) retraction upward relatively just touched object.In general, the thickness of workpiece is all much smaller than staff, therefore, whether greater than predefined certain safe altitude, just can judge whether safety of object that patrix (105) touched by the residing height of contrast patrix (105) this moment.If safety just continues descendingly, produce force-stroke.If dangerous, just do not produce force-stroke, and make working piston (102) upwards return.
Above-mentioned sliding buffer gear must comprise one and be used for the restriction of the slip between piston upper boom (103) and the piston lower beam (104) slip position-limit mechanism within the specific limits.In the embodiment of above-mentioned patent, be to realize spacing by the alignment pin (141) that on the arbitrary parts in piston upper boom (103) and piston lower beam (104) gathering sill (142) is set, setting matches with this gathering sill (142) on another parts.
But this structure remains in following defective:
1, the technology more complicated of slotting and installing alignment pin (141) additional on piston upper boom (103) and piston lower beam (104) has increased cost, and influences the precision that is slidingly matched between piston upper boom (103) and the piston lower beam (104) easily.
2, alignment pin (141) slides in gathering sill (142), owing to be subjected to the influence of gravity and inertia, has fracture hidden danger.
3, be nested with outer sleeve (120) by step axle (130) between piston upper boom (103) and the piston lower beam (104) and be connected, axle with overlap between have certain interval, cause axiality and kinetic stability relatively poor.
Summary of the invention
Technical problem to be solved by this invention provides a kind of upper die buffering mechanism of simple in structure, mini-type punching equipment that stability is high, easy to process.
The object of the present invention is achieved like this:
A kind of upper die buffering mechanism of mini-type punching equipment, comprise working piston, can be along the sliding part that is provided with axially slidably of described working piston.Described sliding part is for being set in the outer sliding sleeve of described working piston coaxially with described working piston, and in whole described sliding stroke, the lower surface of described sliding sleeve is not higher than the lower surface of described working piston.Offer the ring-type locating slot in the bottom of described working piston, this locating slot extends axially along described working piston, upper end at described sliding sleeve radially is provided with the annular boss coaxial with described sliding sleeve highlightedly, and this boss can only slide in described locating slot.
Between described sliding sleeve and described working piston, be folded with ball.
Described working piston comprises: piston rod, the connecting axle, upper end and the described piston rod that are fixedly installed on described piston-rod lower end portion coaxially are fixedly connected and the ring-type wall coaxial with described piston rod.Described ring-type wall is looped around the described connecting axle outside, and described sliding sleeve is between described ring-type wall and described connecting axle.Described boss protrudes in the outside of described sliding sleeve, inwards is provided with the ring-type limited block coaxial with this ring-type wall projectedly in the bottom of described ring-type wall, and the space of this limited block top is described locating slot.Between described connecting axle and the described piston rod for being threaded.
Described working piston also comprises the patrix that is fixedly mounted on this working piston bottom.Bottom at described sliding sleeve is provided with mould emptier, and this mould emptier comprises: the stripper sleeve that can be slidingly arranged in described sliding sleeve bottom along the axial described relatively sliding sleeve of described working piston; Be clipped between described stripper sleeve and the described sliding sleeve and with described stripper sleeve top ejector spring downwards.
Described sliding sleeve also comprises the patrix that is fixedly mounted on this sliding sleeve bottom, described working piston possesses first confined planes of faced downwards, described sliding sleeve possesses second confined planes that faces the top, when the described relatively working piston of described sliding sleeve slid into the limit of this sliding stroke upward, described first confined planes and described second confined planes were inconsistent.
Because the utilization of technique scheme, the present invention has the following advantages:
1, the mode with motionless, the interior axle slip of original overcoat buffering makes the overcoat slip into, interior axle is motionless.Patrix can according to actual conditions install on the coat or interior axle on, more flexibly, stable, can also set up mould emptier.As if the bottom that patrix is fixed on working piston, then its location will be more reliable.
The stability of 2, sliding is high, the hidden danger of having avoided alignment pin can rupture when being hit.
3, this structure is convenient to install and debugging, is fit to standardized production, has also reduced cost when raising the efficiency.
Description of drawings
Accompanying drawing 2 is the full sectional view of embodiment 1;
Accompanying drawing 3 is the full sectional view of embodiment 2.
Wherein: 10,102, working piston; 103, piston upper boom; 104, piston lower beam; 50,105, patrix; 106, counterdie; 120, outer sleeve; 130, step axle; 141, alignment pin; 142, gathering sill; 40,150, transducer for measuring positions; 11, locating slot; 12, piston rod; 13, connecting axle; 14, ring-type wall; 15, first confined planes; 16, cushion pad; 20, sliding sleeve; 21, boss; 22, limited block; 25, second confined planes; 30, ball cover; 41, anti-rotation keyset; 42, anti-rotation guide post; 51, stripper sleeve; 52, patrix fixed cover; 53, ejector spring; 54, spring retaining sleeve; 55, spring pedestal;
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the present invention are specifically described.
Embodiment 1:
As shown in Figure 2, the upper die buffering mechanism in the present embodiment comprises:
The working piston 10 that constitutes by piston rod 12 that is mutually permanently connected and connecting axle 13, wherein piston rod 12 and connecting axle 13 are connected by screw thread, working piston also possesses a ring-type wall 14, and this ring-type wall 14 is coaxial with piston rod 12, and upper end and piston rod 12 are fixedly connected;
Be set in the sliding sleeve 20 outside the connecting axle 13, this sliding sleeve 20 is clipped between ring-type wall 14 and the piston rod 12, and patrix 50 is fixedly mounted on the bottom of sliding sleeve 20.
In the upper end of sliding sleeve 20, radially protrude the boss 21 that is provided with ring-type towards the outside; In the bottom of ring-type wall 14, inwards be provided with ring-type limited block 22 projectedly, the space of the top of this limited block 22 has formed a ring-type locating slot 11 coaxial with working piston 10, this locating slot 11 extending axially along working piston 10.Boss 21 is embedded in the locating slot 11, and can be along locating slot 11 longitudinal sliding motions, thereby guide effect is played in the slip of sliding sleeve 20.Between the upper surface of the lower surface of boss 21 and limited block 22, accompany cushion pad 16.
Be folded with ball between sliding sleeve 20 and working piston 10, ball is fixing by ball cover 30, and and sliding sleeve 20 and working piston 10 between realize interference fit, thereby greatly reduce the resistance of sliding friction, long service life, the accuracy height can guarantee the stability and the reliability of sliding simultaneously.
Piston rod 12 also is connected with anti-rotation guide post 42 by the anti-rotation keyset 41 of a level.This anti-rotation guide post 42 can be with the together lengthwise movement of lengthwise movement of working piston 10, thereby can indicate working piston 10 relative pressing equipment bodies and move down how many distances, just can measure the spacing of following the patrix 50 that working piston 10 moves down and being fixed between the counterdie on the body what are.When the distance between the upper and lower mould during less than predefined safe distance, working piston continues descending generation force-stroke.If the distance between the upper and lower mould is greater than safe distance, then the object between upper and lower mould might be human body or other workpiece, and working piston 10 just necessary returns are avoided having an accident so.
After patrix 50 touched object, as if the judgement through anti-rotation guide post 42, this object was a workpiece, and then working piston 10 continues descending.The lower surface of connecting axle 13 is first confined planes 15, the upper surface of patrix 50 is second confined planes 25, and when sliding sleeve 20 relative working pistons 10 slid into the limit of stroke, first confined planes 15 and second confined planes 25 were inconsistent, working piston 10 is depressed towards patrix 50, produces force-stroke.
Embodiment 2:
As shown in Figure 3, embodiment 2 is that with the difference of embodiment 1 patrix 50 is fixed on the bottom of connecting axle 13 by patrix fixed cover 52.The outside at patrix 50, be provided with the mechanism that is used to help the demoulding, this mechanism comprises: be equivalent to sliding sleeve 20 spring retaining sleeve 54 of prolongation downwards, in this spring retaining sleeve 54, accompany an ejector spring 53, patrix 50 passes from the central authorities of this ejector spring 53.At the top of ejector spring 53, be set with spring pedestal 55.In the bottom of spring retaining sleeve 54, be nested with a stripper sleeve 51, this stripper sleeve 51 demoulding fixed cover 54 is relatively longitudinally slided, thereby ejector spring 53 can be held out against towards the top.
When working piston 10 drives sliding sleeves 20 and moves downwards, in case the lower surface of stripper sleeve 51 touches object, ejector spring 53 will be held out against towards the top, and then drive sliding sleeve 20 also relatively connecting axle 13 slide towards the top, thereby side level sensor 40 is triggered.In the case, again according to the judged result of anti-rotation guide post 42 for safe distance, whether decision working piston 10 needs return.
If the object that patrix 50 touches is normal workpiece, can not cause danger, then working piston 10 continues to move downward, and makes patrix 50 also contact with workpiece, produces force-stroke then, and the workpiece punching press is finished.Afterwards, working piston 10 returns, ejector spring 53 is lax,, presses clamping of workpieces with stripper sleeve 51 tops downwards, and the just relative workpiece of patrix 50 slides towards the top like this, realizes the demoulding.When ejector spring 53 is lax finish after, working piston 10 drives together return upward of sliding sleeves 20 and mould emptier.
As mentioned above, we are illustrated according to aim of the present invention fully, but the present invention is not limited to the foregoing description and implementation method.The practitioner of correlative technology field can carry out different variations and enforcement in the scope of technological thought permission of the present invention.
Claims (7)
1. the upper die buffering mechanism of a mini-type punching equipment; comprise working piston (10), can be along the sliding part that is provided with axially slidably of described working piston (10); it is characterized in that: described sliding part is for being set in the outer sliding sleeve (20) of described working piston (10) coaxially with described working piston (10); in whole described sliding stroke; the lower surface of described sliding sleeve (20) is not higher than the lower surface of described working piston (10)
Offer ring-type locating slot (11) in the bottom of described working piston (10), this locating slot (11) extending axially along described working piston (10), radially be provided with the annular boss (21) coaxial with described sliding sleeve (20) highlightedly in the upper end of described sliding sleeve (20), this boss (21) can only slide in described locating slot (11).
2. the upper die buffering mechanism of mini-type punching equipment according to claim 1 is characterized in that: be folded with ball between described sliding sleeve (20) and described working piston (10).
3. the upper die buffering mechanism of mini-type punching equipment according to claim 1; it is characterized in that: described working piston (10) comprises: piston rod (12), the connecting axle (13), upper end and the described piston rod (12) that are fixedly installed on described piston rod (12) bottom coaxially are fixedly connected and the ring-type wall (14) coaxial with described piston rod (12)
Described ring-type wall (14) is looped around described connecting axle (13) outside, and described sliding sleeve (20) is positioned between described ring-type wall (14) and the described connecting axle (13),
Described boss (21) protrudes the outside in described sliding sleeve (20), inwards be provided with the ring-type limited block (22) coaxial with this ring-type wall (14) projectedly in the bottom of described ring-type wall (14), the space of this limited block (22) top is described locating slot (11).
4. the upper die buffering mechanism of mini-type punching equipment according to claim 3 is characterized in that: between described connecting axle (13) and the described piston rod (12) for being threaded.
5. the upper die buffering mechanism of mini-type punching equipment according to claim 1, it is characterized in that: described working piston (10) also comprises the patrix (50) that is fixedly mounted on this working piston (10) bottom.
6. the upper die buffering mechanism of mini-type punching equipment according to claim 5, it is characterized in that: the bottom at described sliding sleeve (20) is provided with mould emptier, and this mould emptier comprises: the stripper sleeve (51) that can be slidingly arranged in described sliding sleeve (20) bottom along the axially described relatively sliding sleeve (20) of described working piston (10); Be clipped between described stripper sleeve (51) and the described sliding sleeve (20) and with described stripper sleeve (51) top ejector spring (53) downwards.
7. the upper die buffering mechanism of mini-type punching equipment according to claim 1; it is characterized in that: described sliding sleeve (20) also comprises the patrix (50) that is fixedly mounted on this sliding sleeve (20) bottom; described working piston (10) possesses first confined planes (15) of faced downwards; described sliding sleeve (20) possesses second confined planes (25) that faces the top; when the described relatively working piston of described sliding sleeve (20) (10) slid into the limit of this sliding stroke upward, described first confined planes (15) was inconsistent with described second confined planes (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810136207A CN101733330A (en) | 2008-11-14 | 2008-11-14 | Upper die buffering mechanism of miniature stamping equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810136207A CN101733330A (en) | 2008-11-14 | 2008-11-14 | Upper die buffering mechanism of miniature stamping equipment |
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| Publication Number | Publication Date |
|---|---|
| CN101733330A true CN101733330A (en) | 2010-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810136207A Pending CN101733330A (en) | 2008-11-14 | 2008-11-14 | Upper die buffering mechanism of miniature stamping equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102133606A (en) * | 2010-06-18 | 2011-07-27 | 无锡晶心精密机械有限公司 | Automatic discharging device of cold-punching mold |
| CN103537558A (en) * | 2012-07-10 | 2014-01-29 | 苏州工业园区高登威科技有限公司 | Stamping buffering component |
| CN107598006A (en) * | 2017-10-24 | 2018-01-19 | 山西新环粉末冶金有限公司 | A kind of piston valve line forming press for possessing finished product collecting function |
| CN110756666A (en) * | 2019-11-27 | 2020-02-07 | 上海新安汽车隔音毡有限公司 | Product ejector of forming die |
-
2008
- 2008-11-14 CN CN200810136207A patent/CN101733330A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102133606A (en) * | 2010-06-18 | 2011-07-27 | 无锡晶心精密机械有限公司 | Automatic discharging device of cold-punching mold |
| CN103537558A (en) * | 2012-07-10 | 2014-01-29 | 苏州工业园区高登威科技有限公司 | Stamping buffering component |
| CN107598006A (en) * | 2017-10-24 | 2018-01-19 | 山西新环粉末冶金有限公司 | A kind of piston valve line forming press for possessing finished product collecting function |
| CN107598006B (en) * | 2017-10-24 | 2023-08-04 | 山西新环粉末冶金有限公司 | Piston valve line molding press with finished product collecting function |
| CN110756666A (en) * | 2019-11-27 | 2020-02-07 | 上海新安汽车隔音毡有限公司 | Product ejector of forming die |
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Application publication date: 20100616 |