CN103486106A - Floating supporting oil cylinder - Google Patents
Floating supporting oil cylinder Download PDFInfo
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- CN103486106A CN103486106A CN201310428245.XA CN201310428245A CN103486106A CN 103486106 A CN103486106 A CN 103486106A CN 201310428245 A CN201310428245 A CN 201310428245A CN 103486106 A CN103486106 A CN 103486106A
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- 238000007667 floating Methods 0.000 title claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 229920001971 elastomer Polymers 0.000 claims description 25
- 239000000806 elastomer Substances 0.000 claims description 25
- 239000000428 dust Substances 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 35
- 239000010720 hydraulic oil Substances 0.000 description 7
- 230000000630 rising effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000003570 air Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000013475 authorization Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
The invention relates to a floating supporting oil cylinder. The floating supporting oil cylinder comprises a cylinder body, an ejection device and a supporting clamping device, wherein the ejection device comprises a base, an ejection piston, an ejection rod, a back spring and a supporting rod; the base is provided with a piston channel; the ejection piston is positioned in the piston channel; the ejection rod is fixed with the ejection piston; the back spring is sleeved on the ejection rod; the supporting rod is pushed by the ejection rod; the supporting clamping device comprises a supporting piston and an elastic body; the supporting piston is positioned in the cylinder body; the elastic body is sleeved between the supporting rod and the supporting piston; the inner surface of the supporting piston and the outer surface of the elastic body are respectively an inner conical surface and an outer conical surface which are matched with each other; and steel balls are arranged between the inner conical surface and the outer conical surface. The floating supporting oil cylinder is characterized in that a hollow cylindrical boss is arranged at the lower end of the supporting piston and extends in the piston channel of the base; and the upper end of the ejection rod is matched with the supporting rod after penetrating in the cylindrical boss. The supporting force can be obviously increased under the condition that the cylinder diameter and the pressure are not changed, and the purpose of small size and large supporting force under the condition of low pressure is realized.
Description
Technical field
The present invention relates to a kind of supporting oil cylinder, relate in particular to and a kind ofly by increasing the piston lifting surface area, can improve the hydraulic floating supporting oil cylinder to work mounting s power.
Background technique
The hydraulic floating supporting oil cylinder is mainly used in machining, after the workpiece to be machined compression contacts, workpiece to be machined is produced to supporting force, to reduce the vibration of workpiece to be machined in course of working, prevent the distortion of workpiece to be machined, be a kind of device that workpiece to be machined provides unsteady aiding support.As in the Chinese patent notice of authorization number patent documentation that is CN201513409U, disclosed a kind of hydraulic pressure support cylinder structure, it comprises: hydraulic support oil cylinder body, the plunger (supporting rod) that is installed on intrinsic rising piston (ejecting piston) and promotes by the rising piston, piston spring (ejector spring), the collet chuck (elastomer) of one support piston and double team plunger also is installed in the oil cylinder body, support piston has a rising conical surface, collet chuck has the stressed conical surface corresponding with this rising conical surface, support piston moves up by hydraulic pressure, its rising conical surface produces horizontal-clamping power to the stressed conical surface.This utility model patent also specifically discloses the Organizational Structure relation between each parts: rising piston, plunger, collet chuck, support piston are to be sleeved on successively from inside to outside in hydraulic support oil cylinder body, and bottom is the hydraulic oil cavity volume.The thrust size that support piston can produce is closely related with effective work area of support piston, usually more high thrust is larger for area, and this structure will deduct due to effective work area (cross section) of support piston the larger sectional area that intermediate member occupies, the support piston thrust that remaining annular working area produces is less.In the patent documentation that similarly structure is CN203081897U at Chinese patent notice of authorization number, also have open.
From said structure, can see, the thrust that support piston makes progress, not only will meet the needs that elastomer is held supporting rod tightly, and will meet the needs of whole supporting force.In other words, the thrust that support piston can produce and elastomer are held smaller among the frictional force that supporting rod obtains tightly, have determined the supporting force of supporting oil cylinder.General support piston and elastomeric cone angle only need accomplish to be less than 5 °, its enclasping force obtained can reach more than tens times of support piston thrust, friction factor between steel and steel is greater than 0.12, the friction supporting force obtained can be more much bigger than support piston thrust, therefore, the supporting force of supporting oil cylinder just depends on the thrust size that support piston produces.And the thrust that support piston can produce size is closely related with effective work area of support piston, more high thrust is larger for area usually.
And the common ground of hydraulic floating supporting oil cylinder of the prior art is: 1, ejecting piston is only to play the effect that supporting rod is ejected; 2,, due to the existence that ejects piston being arranged, the basal area that effective work area of support piston equals support piston deducts and ejects remaining annulus area after the occupied core area of piston.Be existing hydraulic floating supporting oil cylinder, eject piston and just play the effect that ejects supporting rod, effective work area of support piston is only annulus area, and the thrust that causes support piston to produce is had a greatly reduced quality.For this pressure range of operating on low voltage for current machine tool hydraulic system (≤7MPa), want to obtain the supporting force of larger supporting oil cylinder under this low pressure condition, can only rely on raising oil cylinder volume to solve, can raise the cost but do like this, and also can not unrestrictedly depend on and increase the oil cylinder volume and solve.Therefore how under as far as possible little volume, to make the low pressure supporting oil cylinder produce large as far as possible supporting force, become technical problem in the urgent need to address at present.
Secondly, in existing hydraulic floating supporting oil cylinder, the opposing side of support piston and collet chuck (elastomer) is the smooth conical surface be complementary, make steel ball contact for putting respectively with between elastomer, support piston, such structure causes the stress of receiving between steel ball and elastomer, support piston larger, thereby can reduce to a certain extent the bearing capacity of supporting oil cylinder, simultaneously also can reduction of service life, and the mechanical characteristic requirement to collet chuck (elastomer) material therefor is high, otherwise working life can be shorter.
Summary of the invention
Technical problem to be solved by this invention is the present situation for prior art, and a kind of floating support oil cylinder that can obviously improve supporting force under the condition of same cylinder diameter and pressure is provided.
The present invention solves the problems of the technologies described above adopted technological scheme: a kind of floating support oil cylinder, include cylinder body, liftout attachment and supporting holding device, wherein liftout attachment comprise again base with piston channel, be arranged in piston channel eject piston, with eject the ejector rod that piston fixes, the supporting rod that is enclosed within the retracting spring on ejector rod and is promoted by ejector rod, described supporting holding device includes support piston and the elastomer that is positioned at described cylinder body, described elastomer sleeve is between described supporting rod and support piston, and described support piston internal surface and elastomeric outer surface are designed to respectively inner conical surface and the male cone (strobilus masculinus) of coupling mutually, in this, be provided with steel ball between male cone (strobilus masculinus), it is characterized in that: the lower end of described support piston is provided with the cylindrical boss of hollow, this cylindrical boss extend in the piston channel of described base, match with described supporting rod through after this cylindrical boss in described ejector rod upper end.
Preferably, the external diameter of the cylindrical boss of described hollow is not more than the described diameter that ejects piston, the lifting surface area that ejects like this piston has made up the effective work area that makes the support piston loss because liftout attachment is set fully, thereby not only made up former thrust loss, supplemented but also may there is the thrust exceeded.Certainly, if allow less lifting surface area loss, also the external diameter of cylindrical boss can be designed to be slightly larger than the described structure that ejects the diameter of piston.
In above-mentioned each scheme, further preferably, the inwall of described cylindrical boss is provided with a shoulder, the upper and lower end of described retracting spring is resisted against respectively this shoulder and ejects on piston, like this when ejecting piston when ejecting supporting rod, retracting spring is compressed in the cylindrical boss of hollow gradually, does not affect the conflict of the cylindrical boss lower end that ejects piston and hollow.But when the diameter that ejects piston obviously is greater than the external diameter of cylindrical boss, the upper and lower end of retracting spring can be against base and eject between piston, such scheme, under the effect that realizes the returning spring restoring force, can not affect equally the conflict of the cylindrical boss lower end that ejects piston and hollow.
Impact in order to ensure ejecting moving up and down of piston and be not subject to air in piston channel in above-mentioned each scheme, preferably, is provided with vent cap on described base, and described piston channel is connected with outside via this vent cap.The air of piston channel freely is communicated with mutually with ambient air like this, the resistance of air when reducing to eject piston up-down.
In such scheme, be preferably, the upper end periphery of described base has a step and form a cavity volume between described base, cylinder body and support piston, there is the oil inlet passage be connected with this cavity volume on described base, hydraulic oil can promote support cylinder from below, makes overall structure more compact.
Be preferably, the 3rd seal ring is installed between the surface of contact of the cylindrical boss of described hollow and the piston channel of described base, reliable sealing between the surface of contact of the piston channel of assurance support piston and base.
In above-mentioned each scheme, further preferably, have the interior raceway caved inward on the inner conical surface of described support piston from top to bottom, and described interior raceway have a plurality of, respectively along the circumferential distribution of described support piston; On described elastomeric male cone (strobilus masculinus), be provided with described a plurality of interior raceways mutually one to one and the outer raceway caved inward, described steel ball is arranged in the raceway that the inside and outside raceway by correspondence forms.Such structure can make between steel ball and raceway to change the line contact into by contacting, can reduce the stress of receiving between steel ball and elastomer, support piston, not only can improve the bearing capacity of supporting oil cylinder, and can increase the service life, and can also reduce the mechanical characteristic requirement of elastomer material therefor, under equal the requirement, can reduce costs.
In above-mentioned further preferred scheme, the cross section of described inside and outside raceway is circular groove, the radius of this circular groove is identical with the radius of steel ball, so that make to reach complete line between steel ball and raceway, contacts, and the bearing capacity of supporting oil cylinder is further improved.
Be preferably, two described raceways are one group, and should organize raceways respectively along circumferentially uniform more, like this to supporting rod supporting, stressed more even.
More practical, between the surface of contact of described supporting rod and cylinder body, dust ring is installed, prevent that supporting rod from ejecting, while bouncing back, foreign matter enters cylinder body, guarantee that supporting oil cylinder can work stably in a long term.
Compared with prior art, because the present invention is provided with cylindrical boss dexterously, utilize cylindrical boss and eject coordinating of piston, make the present invention there is the structure of double-piston supporting, ought ejecting piston, stressed to overcome retracting spring up, while by ejector rod, supporting rod being ejected, eject the cylindrical boss that piston will contact the support piston lower end, then eject piston and support piston stressed upper top simultaneously, support piston produces radial component by steel ball to elastomer makes elastomer hold supporting rod tightly.Obviously, at this moment the piston that ejects has after supporting rod is ejected the double action that the boosting support piston is supported workpiece again, the thrust that ejects piston increased, can compensate due to effective work area that the support piston that liftout attachment loses is set, the thrust that supporting oil cylinder integral body is made progress reaches, even is greater than the work area of complete support piston, thereby the present invention can obviously improve supporting force under the condition of same cylinder diameter and pressure, realized the purpose of small volume, big bear power in the low pressure situation.
The accompanying drawing explanation
The structural representation that Fig. 1 is first embodiment of the invention;
Fig. 2 is that A-A in Fig. 1 is to sectional view;
The structural representation that Fig. 3 is support piston in Fig. 1;
The plan view that Fig. 4 is Fig. 3;
Fig. 5 is the be hit by a bullet structural representation of gonosome of Fig. 1;
Fig. 6 is that B-B in Fig. 5 is to sectional view;
The structural representation that Fig. 7 is second embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
The first embodiment: as shown in Figures 1 to 6, the hydraulic floating supporting oil cylinder in the present embodiment includes cylinder body 1, liftout attachment and supporting holding device, and wherein the internal diameter of cylinder body 1 is 24mm, and outer wall has outside thread, and upper-end surface has through hole, and lower end mouth is opened wide; Liftout attachment includes again base 2, ejects piston 3, ejector rod 4, retracting spring a1, supporting rod 5 and ejector spring a2, described base 2 is positioned in the lower end mouth of cylinder body 1, and be provided with the first seal ring b1 between base 2 and cylinder body 1, base 2 sealings are blocked in the lower end mouth of cylinder body 1; Also be axially arranged with piston channel 21 in this base 2, in the present embodiment, the upper diameter of this piston channel 21 is less than lower diameter, above-mentionedly eject the bottom that piston 3 is positioned at this piston channel 21, eject on piston and be provided with the second seal ring b2 at this, make to eject piston 3 seal slip in the bottom of piston channel.The lower end of above-mentioned ejector rod 4 with eject piston 3 and fix, upper end is stretched in the inner chamber 51 of supporting rod 5.The upper end of above-mentioned supporting rod 5 exposes to described cylinder body after by the through hole on cylinder body, the upper end of this supporting rod 5 crown cap 6 that is threaded.Above-mentioned ejector spring position a2 is in the inner chamber 51 of supporting rod, and its upper and lower end offsets with upper end and the top cap 6 of ejector rod 4 respectively.
Described supporting holding device includes support piston 7, elastomer 8, steel ball 9 and the Returnning spring a3 that is positioned at cylinder body, wherein elastomer 8 is enclosed between above-mentioned supporting rod 5 and support piston 7, and the top wall thickness of support piston 7 is less than the bottom wall thickness, and make support piston 7 internal surfaces become the rising inner conical surface, the outer surface of elastomer 8 is designed to the male cone (strobilus masculinus) mutually mated with this inner conical surface, steel ball 9 is located between this inside and outside conical surface, the top of support piston 7 is provided with the pad 10 moved on the restriction steel ball, always movable between the inside and outside conical surface to guarantee steel ball.The lower end of Returnning spring a3 is against on this pad 10, and the upper edge of upper end and elastomer 8 offsets.In order to increase the effective work area of support piston, the lower end of above-mentioned support piston 7 is provided with the cylindrical boss 71 of hollow, in the present embodiment, the external diameter of the cylindrical boss 71 of this hollow (external diameter is 10mm) is less than the diameter (diameter is 12mm) that ejects piston 3, this cylindrical boss 71 extend in the piston channel 21 of base, and and be provided with the 3rd seal ring b3 between the top of piston channel 21, make this cylindrical boss 71 seal slip in the top of piston channel 21.
For the ease of making, more be conducive to the stability of work, the inwall of above-mentioned cylindrical boss 71 is provided with a shoulder 72, and the upper and lower end of retracting spring a1 is resisted against respectively this shoulder 72 and ejects on piston 3.Base 2 is provided with vent cap 22, and the inside of piston channel 21 is communicated with outside, in working procedure, can freely breathe, the resistance of air when reducing to eject piston 3 and moving up and down.Upper end periphery at base has a step and makes formation one cavity volume 23 between base, cylinder body and support piston simultaneously, also has the oil inlet passage 24 be connected with this cavity volume on base.
In order further to improve the bearing capacity of supporting oil cylinder, the above-mentioned inside and outside conical surface also is designed to following structure: have the interior raceway 73 caved inward on the inner conical surface of support piston 7 from top to bottom, and interior raceway 73 has a plurality of, respectively along the circumferential distribution of support piston 7; On the male cone (strobilus masculinus) of elastomer 8, be provided with a plurality of interior raceways 73 mutually one to one and the outer raceway 81 caved inward, steel ball 9 is arranged in the raceway that the inside and outside raceway by correspondence forms.In the present embodiment, interior raceway is preferably 16, and the cross section of 16 and inside and outside raceway is also arranged is circular groove to outer raceway, and the radius of this circular groove is identical with the radius of steel ball.Two described raceways are formed to one group, these many group raceways are respectively along circumferentially uniform simultaneously, and please refer to the drawing 2 can further improve the bearing capacity of supporting oil cylinder.After adopting so inside and outside cone structure, can make for line, to contact between steel ball and raceway, thereby can reduce the stress of receiving between steel ball and elastomer, support piston, can increase the service life in the bearing capacity that has improved supporting oil cylinder, and can also reduce the mechanical characteristic requirement of elastomer material therefor.
Except above-mentioned seal ring, be provided with the 4th seal ring b4 between support piston 7 and cylinder body 1, at supporting rod 5 also and be provided with the 5th seal ring b5 between cylinder body through hole surface of contact, between the through hole surface of contact of supporting rod and cylinder body, dust ring b6 is installed simultaneously, this dust ring b6 can prevent that supporting rod 5 from ejecting, while bouncing back, foreign matter enters cylinder body 1, guarantees that supporting oil cylinder can work stably in a long term.
The working procedure of this hydraulic floating supporting oil cylinder is as follows: after hydraulic oil enters in the rodless cavity 25 that ejects the piston below, hydraulic oil promotes to eject piston 3, and it is up to overcome retracting spring a1, by ejector spring a2, supporting rod 5 is ejected, retracting spring a1 is compressed gradually, straight when only ejecting piston 3 and touching the cylindrical boss 71 of support piston 7 bottoms, retracting spring a1 is fully compressed in the cylindrical boss 71 of support piston 7, and supporting rod 5 ejects fully to contacting with workpiece 100.In this process, hydraulic oil enters in cavity volume 23 through oil inlet passage 24 simultaneously, but due to Returnning spring a3 to support piston 7 preset downforce, this downforce is greater than and ejects the hydraulic coupling sum obtained on thrust now of piston 3 and support piston 7, thus support piston 7 not can with supporting rod 5 eject and up.
Afterwards, hydraulic fluid pressure raises, at this moment hydraulic oil enters rodless cavity 25, enter cavity volume 23 by oil inlet passage 24 simultaneously, overcome the pretightening force of Returnning spring a3, promote support piston 7 and eject piston 3 up simultaneously, under the effect of the inside and outside conical surface, by steel ball 9, make elastomer 8 hold supporting rod 5 tightly, complete the supporting to workpiece 100, until reach the working pressure of setting.
When discharging hydraulic fluid pressure, steel ball 9 guarantees that support piston 7 can not produce self-locking, Returnning spring a3 can successfully be pushed into by support piston 7 initial position contacted with base 1, simultaneously retracting spring a1 also will eject piston 3 and push back to initial position, and eject the ejector rod 4 that piston 3 is connected supporting rod 5 is retracted to home position.
In the present embodiment, the oil pressure of hydraulic oil is selected 7MPa, and the conical surface gradient of support piston 7 is set to 5 °, and the radial component of generation is that enclasping force reaches 36.60kN, at least can obtain the friction supporting force of 4.4kN.And the thrust that support piston 7 makes progress is 2.56kN, add and eject the thrust 0.77kN that piston 3 makes progress, amounted to the comprehensive thrust of 3.33kN, be the actual supporting force of supporting oil cylinder.The supporting force of this actual acquisition has improved approximately 30% with respect to 2.56kN.
The foregoing is only the preferred embodiment of the present invention, should be understood that, for the ordinary skill in the art, do not breaking away under principle prerequisite of the present invention, can also make various deformation and improvement, for example, when the diameter that ejects piston obviously is greater than the external diameter of cylindrical boss, as shown in Figure 7, now retracting spring a1's is upper, lower end can be against base 2 and eject between piston 3, the lifting surface area that now ejects piston 3 has made up the effective work area that makes support piston 7 losses because liftout attachment is set, not only made up former thrust loss, and eject part lifting surface area that piston 3 is greater than the cylindrical boss face area and also there is thrust and supplement, make actual supporting force exceed the supporting force of complete support piston, thereby such structure has better support effects.Perhaps, when allowing less lifting surface area loss, also the external diameter of cylindrical boss can be designed to be slightly larger than the structure of the diameter that ejects piston.Be that such scheme also should be considered within the scope of protection of the present invention.
Claims (10)
1. a floating support oil cylinder, include cylinder body (1), liftout attachment and supporting holding device, wherein liftout attachment comprise again base (2) with piston channel, be arranged in piston channel (21) eject piston (3), with eject the ejector rod (4) that piston fixes, the supporting rod (5) that is enclosed within the retracting spring (a1) on ejector rod and is promoted by ejector rod, described supporting holding device includes support piston (7) and the elastomer (8) that is positioned at described cylinder body, described elastomer sleeve is between described supporting rod and support piston, and the outer surface of described support piston (7) internal surface and elastomer (8) is designed to respectively inner conical surface and the male cone (strobilus masculinus) of coupling mutually, in this, be provided with steel ball (9) between male cone (strobilus masculinus), it is characterized in that: the lower end of described support piston (7) is provided with the cylindrical boss (71) of hollow, this cylindrical boss extend in the piston channel (21) of described base, match with described supporting rod (5) through after this cylindrical boss (71) in described ejector rod (4) upper end.
2. floating support oil cylinder according to claim 1, it is characterized in that: the external diameter of the cylindrical boss of described hollow (71) is not more than the described diameter that ejects piston (3).
3. floating support oil cylinder according to claim 1 and 2, it is characterized in that: the inwall of described cylindrical boss (71) is provided with a shoulder (72), and the upper and lower end of described retracting spring (a1) is resisted against respectively this shoulder (72) and ejects on piston (3).
4. floating support oil cylinder according to claim 1 and 2, it is characterized in that: described base (2) is provided with vent cap (22), and described piston channel (21) is connected with outside via this vent cap (22).
5. floating support oil cylinder according to claim 1 and 2, it is characterized in that: the upper end periphery of described base has a step and form a cavity volume (23) between described base, cylinder body and support piston, has the oil inlet passage (24) be connected with this cavity volume on described base.
6. floating support oil cylinder according to claim 1 and 2, is characterized in that: the 3rd seal ring (b3) is installed between the surface of contact of the piston channel (21) of the cylindrical boss of described hollow (71) and described base.
7. floating support oil cylinder according to claim 1 and 2, it is characterized in that: have the interior raceway (73) caved inward on the inner conical surface of described support piston (7) from top to bottom, and described interior raceway has a plurality of, respectively along the circumferential distribution of described support piston (7); On the male cone (strobilus masculinus) of described elastomer (8), be provided with described a plurality of interior raceways mutually one to one and the outer raceway (81) caved inward, described steel ball (9) is arranged in the raceway that the inside and outside raceway by correspondence forms.
8. floating support oil cylinder according to claim 7, it is characterized in that: the cross section of described inside and outside raceway is circular groove, the radius of this circular groove is identical with the radius of described steel ball (9).
9. floating support oil cylinder according to claim 7, it is characterized in that: two described raceways are one group, and should many group raceways respectively along circumferentially uniform.
10. floating support oil cylinder according to claim 1 and 2, is characterized in that: between the surface of contact of described supporting rod (5) and cylinder body (1), dust ring (b6) is installed.
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| CN201310428245.XA CN103486106B (en) | 2013-09-18 | 2013-09-18 | A kind of floating support oil cylinder |
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| CN201310428245.XA CN103486106B (en) | 2013-09-18 | 2013-09-18 | A kind of floating support oil cylinder |
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| CN103486106A true CN103486106A (en) | 2014-01-01 |
| CN103486106B CN103486106B (en) | 2015-10-21 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104707199A (en) * | 2015-01-04 | 2015-06-17 | 迈柯唯医疗设备(苏州)有限公司 | Rapid locking and releasing device for infusion rod |
| CN109854564A (en) * | 2018-12-03 | 2019-06-07 | 燕山大学 | A kind of bitubular clamping structure hydraulic support cylinder |
| CN109869370A (en) * | 2019-03-29 | 2019-06-11 | 苏州久越金属科技有限公司 | A kind of adjustable floating cylinder |
| CN111230529A (en) * | 2020-03-18 | 2020-06-05 | 苏州宝优际科技股份有限公司 | Balance clamp |
| CN113048115A (en) * | 2021-02-25 | 2021-06-29 | 首钢京唐钢铁联合有限责任公司 | Anti-sliding cylinder structure, system and method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN111230529A (en) * | 2020-03-18 | 2020-06-05 | 苏州宝优际科技股份有限公司 | Balance clamp |
| CN113048115A (en) * | 2021-02-25 | 2021-06-29 | 首钢京唐钢铁联合有限责任公司 | Anti-sliding cylinder structure, system and method |
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| CN103486106B (en) | 2015-10-21 |
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Address after: 315800 No.8 Jinshajiang Road, Beilun District, Ningbo City, Zhejiang Province Co-patentee after: Zhejiang Fengzhou Precision Manufacturing Co.,Ltd. Patentee after: Bi Qingchun Address before: 315800 Ningbo Feng Zhou Machinery Co., Ltd., 8 Jinsha River Road, Beilun District, Zhejiang, Ningbo Co-patentee before: NINGBO FENGZHOU MACHINERY Co.,Ltd. Patentee before: Bi Qingchun |
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Address after: Building 5, Beiyun Feichuang Modern Industrial Park, No. 168, Yangzhou'ao Road, Chaiqiao Street, Beilun District, Ningbo, Zhejiang 315800 Patentee after: Bi Qingchun Country or region after: China Patentee after: Zhejiang Fengzhou Technology Co.,Ltd. Address before: No. 8 Jinshajiang Road, Beilun District, Ningbo City, Zhejiang Province, 315800 Patentee before: Bi Qingchun Country or region before: China Patentee before: Zhejiang Fengzhou Precision Manufacturing Co.,Ltd. |