CN201241892Y - Corner cylinder for fixture - Google Patents
Corner cylinder for fixture Download PDFInfo
- Publication number
- CN201241892Y CN201241892Y CNU2008200881875U CN200820088187U CN201241892Y CN 201241892 Y CN201241892 Y CN 201241892Y CN U2008200881875 U CNU2008200881875 U CN U2008200881875U CN 200820088187 U CN200820088187 U CN 200820088187U CN 201241892 Y CN201241892 Y CN 201241892Y
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- China
- Prior art keywords
- cylinder body
- piston rod
- steel ball
- corner
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a corner cylinder for a cramping apparatus, which comprises a cylinder body, and a piston rod and a corner rod which are mounted in the cylinder body, wherein the corner rod is connected with the bottom cover of the cylinder body, the corner rod is inserted into the piston rod from the lower portion of the piston rod, and the piston rod can rotate relative to the corner rod, two guiding helical grooves are oppositely arranged on the corner rod along the axial direction. A holding cavity is arranged on the lower end surface of the piston potion of the piston rod, a steel ball holder is fixed in the holding cavity, and a steel ball which is matched with the guiding helical grooves is mounted in the steel ball holder, the steel ball can roll in the steel ball holder, and the corner bar moveably penetrates through the steel ball retainer. The steel ball can further roll in the steel ball holder when the steel ball is sliding in the guiding helical grooves, and therefore, the steel ball and the guiding helical grooves rub in a rolling way. The frictional force between the steel ball and the guiding helical grooves is small, and the steel ball smoothly slides in the guiding helical grooves, and the working stability of the corner cylinder is assured. And meanwhile, the abrasion of the steel ball is small since the rolling friction, and the service span of the whose corner cylinder is increased.
Description
Technical field
The utility model relates to the technical field of anchor clamps, relates in particular to a kind of anchor clamps corner cylinder.
Background technique
Flourish along with the machining center industry driven the rise of domestic professional clamp tool industry, and the fast development of industries such as domestic automobile, Aero-Space requires the complexity and the precision of Component in batches also more and more higher.The domestic anchor clamps industry of the difficulty of industry part processing and rate request must be fast-developing.
For dodging workpiece, someone has invented the nipper corner cylinder, its structure is roughly the same, as a patent No. is a kind of structure the Chinese utility model patent " Null oil-pressure anchor clamps " of ZL96218865.4 (notification number is CN2255326Y) has disclosed, comprise piston pole socket and cylinder body, it is characterized in that: with the bottom thickening of piston pole socket, and be provided with the oil sealing ditch of an installing oil sealing at the bottom car, and the wear-resisting circular groove that wear ring is installed, and constitute a leakproof, anti-inclination and anti abrasive structure; Above-mentioned wear-resisting circular groove, be uniformly-spaced to radial shape at its side face and become to have a plurality of steel ball accepting holes that are the undergauge shape endways, and the inner side mounting thread portion of this steel ball accepting hole, steel ball is positioned in this steel ball accepting hole, locks and is formed in the S shape guide channel a little outwards outstanding structure in surface of running smoothly with bolt; Bottom design at cylinder body is formed with a ring-type assembly department, and is provided with a plurality of screw holes at the side face of this ring-type assembly department, and the bottom of S shape guide rod seat also correspondence be provided with a plurality of mounting holes.
Be a kind of structure so the Chinese utility model patent " a kind of novel clamp corner cylinder " of ZL200620125623.2 (notification number is CN200985927Y) has disclosed also as a patent No., it mainly is made up of bonnet, cylinder body, piston, bearing pin, seal ring and the bonnet axis of guide, piston is contained in the cylinder bore, bearing pin is vertically mounted on the afterbody of piston, bonnet is fastened on the end face of cylinder body by screw, the axis of guide of bonnet is contained in the piston tail hole, and the side bus of bearing pin is close on the helicoid of the bonnet axis of guide.
Above-mentioned corner cylinder patent has the certain wear-resisting smooth and easy stable advantage of action that undermines.But there is following defective in above-mentioned corner cylinder: 1, steel ball in the corner cylinder or bearing pin quilt are tight so in the afterbody hole of steel ball accepting hole or piston, be close between steel ball or bearing pin and the S shape guide channel, so afterbody hole internal fixation of steel ball or relative steel ball accepting hole of bearing pin or piston, during work, be sliding friction between in the afterbody hole of steel ball or bearing pin and steel ball accepting hole or piston, frictional force is still bigger between like this in the afterbody hole of steel ball and bearing pin and steel ball accepting hole or piston, move not really smooth and easy, and the wearing and tearing of steel ball or bearing pin are big, fragile, what cause moving is inaccurate, and working life is short.
2, the sidepiece oil-feed of the cylinder body of corner cylinder, and cylinder body generally is to be threaded to be fixed on the substrate, therefore the craspedodrome cylinder of using as anchor clamps can form too many inlet, outlet or oil pipe on substrate top, the iron filings that produce in the operative workpiece process can accumulate between the various pipelines, iron filings are easy to clean not, if there is chip not clean out, can causes repetition clamping precision to lose and cause scrapping of product.Also have, the iron filings of high temperature can scald the relieving stagnant Qi pipe.
In sum, existing anchor clamps also can be further improved with corner cylinder.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of action anchor clamps corner cylinder more smoothly at above-mentioned prior art present situation.
Second technical problem to be solved in the utility model provides a kind of corner cylinder that does not have too many inlet, outlet or oil pipe on the installation base plate that makes.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: a kind of anchor clamps corner cylinder, include cylinder body, and be installed in piston rod and angle pole in the cylinder body; Wherein, piston rod can be around the relative cylinder body rotation of self axis, the bar portion of piston rod links to each other with pressing plate after stretching out cylinder body, piston rod cooperates with the inboard wall of cylinder block liquid sealing, and the cylinder interior separated by spaces become upper and lower two Seal cages, have first passage that communicates with last Seal cage and the second channel that communicates with the lower seal chamber on the cylinder body; Described angle pole links to each other with the bottom of cylinder body, and angle pole inserts piston rod from underpart of the piston rod, but and the rotation of piston rod relative rotation bar, be provided with two guiding spiral chutes on the angle pole vertically relatively; It is characterized in that: the piston portion lower end surface of described piston rod has a holding cavity, this holding cavity internal fixation has a ball retainer, the steel ball that matches with described guiding spiral chute is housed in the ball retainer, this steel ball can roll in ball retainer, and described ball retainer is passed in the angle pole activity.
For solving second technical problem, above-mentioned first passage axially is provided with along cylinder side wall, first passage axially runs through the bottom surface of cylinder body and communicates with the external world, and described second channel axially is provided with along cylinder side wall equally, and second channel axially runs through the bottom surface of cylinder body and communicates with the external world.Like this, during assembling this lever cylinder lower end is fixed on the substrate, and have first access way that communicates with first passage in substrate inside, and second access way that communicates with second channel, during work, medium is to be cylinder interior circulation at substrate always, need not at the unnecessary pipeline that communicates with first passage and second channel of substrate top layout, the iron filings of avoiding producing in the operative workpiece process can accumulate in and expose between the various pipelines in substrate top, guarantee to repeat the clamping precision, reduce the scrappage of product.Also avoid the iron filings of high temperature can scald the possibility of relieving stagnant Qi pipe simultaneously.
Above-mentioned ball retainer is formed with a plurality of positioning holes at its side face spaced radial, the piston portion of piston rod is provided with first circular groove at outer circumferential face, radially be formed with the corresponding radial direction through hole of a plurality of and described positioning hole in first circular groove at interval, the insertion positioning hole was interior so that ball retainer is fixed in the holding cavity after one locating stud passed radial direction through hole, in described first circular groove wear ring was installed.It is fixed on structure in the holding cavity for a kind of with ball retainer, and this structure can be fixed on ball retainer in the holding cavity easily, also has it to be provided with wear ring in first circular groove, strengthens the liquid sealing of piston portion and inboard wall of cylinder block.
Be provided with the sealing of first seal ring between the piston portion of above-mentioned piston rod and the inboard wall of cylinder block, first seal ring is installed on second circular groove of piston portion outer circumferential face, also be provided with the sealing of second seal ring between the bar portion of piston rod and the inboard wall of cylinder block, second seal ring is installed on the inner peripheral surface circular groove of cylinder body axial hole.Guarantee that fully piston rod cooperates with the inboard wall of cylinder block liquid sealing.
Above-mentioned angle pole passes the bottom of cylinder body, and fixes by the bottom of straight pin and cylinder body, and is provided with the sealing of the 3rd seal ring between the endoporus of the outer circumferential face of angle pole and cylinder body bottom, and the 3rd seal ring is installed in the circular groove of angle pole outer circumferential face.It is fixed on the structure of cylinder body bottom for a kind of with angle pole, the 3rd seal ring is set guarantees the bottom of cylinder body and the liquid sealing of inboard wall of cylinder block.
Compared with prior art, advantage of the present utility model is: be provided with these parts of ball retainer between angle pole and piston portion, steel ball is in the guiding spiral chute in the slippage, steel ball also rolls in ball retainer, therefore, be rolling friction between steel ball and the guiding spiral chute, the frictional force between them is little, the slip of steel ball in the guiding spiral chute is smooth and easy, has guaranteed the steady of this corner cylinder work.Owing to rolling friction, the wearing and tearing of steel ball are also little simultaneously, increase the working life of entire product.
Description of drawings
Fig. 1 is the utility model embodiment's a structure sectional view;
Fig. 2 is a ball retainer scheme of installation among the utility model embodiment;
Fig. 3 is that the A-A of Fig. 2 is to sectional view;
Fig. 4 is the assembling schematic representation of corner cylinder and bottom among the utility model embodiment;
Fig. 5 is the assembling schematic representation under a kind of user mode of the utility model embodiment.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Shown in Fig. 1～4, a kind of anchor clamps corner cylinder includes cylinder body 1, is installed in piston rod 2 and angle pole 3 in the cylinder body 1; Wherein, the bar portion 21 of piston rod 2 and piston portion 22 all are cylindric, piston rod 2 can be around relative cylinder body 1 rotation of self axis, the bar portion 21 of piston rod 2 stretches out cylinder body 1 back and links to each other with pressing plate 4, link together by screw 19 between pressing plate 4 and the bar portion 21, piston rod 2 cooperates with cylinder body 1 inwall liquid sealing, be provided with 10 sealings of first seal ring between the piston portion 22 of piston rod 2 and cylinder body 1 inwall, first seal ring 10 is installed on second circular groove 224 of piston portion 22 outer circumferential faces, also be provided with 15 sealings of second seal ring between the bar portion 21 of piston rod 2 and cylinder body 1 inwall, second seal ring 15 is installed on the inner peripheral surface circular groove 16 of cylinder body 1 axial hole.
The piston portion 22 of piston rod 2 is separated into upper and lower two Seal cages 11,12 with cylinder body 1 inner space, has first passage 13 that communicates with last Seal cage 11 and the second channel 14 that communicates with lower seal chamber 12 on the cylinder body 1.
Described angle pole 3 links to each other with the bottom 5 of cylinder body 1, also seal between bottom 5 and the cylinder body 1 for being provided with the 4th seal ring 23, the 4th seal ring 24 is arranged in the circular groove 51 of bottom 5, liquid sealing is connected, angle pole 3 passes the bottom 5 of cylinder body 1, and fixing by straight pin 17 with the bottom 5 of cylinder body 1, and between the endoporus of the outer circumferential face of angle pole 3 and cylinder body bottom 5, be provided with 18 sealings of the 3rd seal ring, the 3rd seal ring 18 is installed in the circular groove 32 of angle pole 3 outer circumferential faces.
Described ball retainer 6 is formed with a plurality of positioning holes 61 at its side face spaced radial, the piston portion 22 of piston rod 2 is provided with first circular groove 222 at outer circumferential face, radially be formed with a plurality of and described positioning hole 61 corresponding radial direction through hole 223 in first circular groove 222 at interval, it is interior so that ball retainer 6 is fixed in the holding cavity 221 that one locating stud 8 passes radial direction through hole 223 back insertion positioning holes 61, in described first circular groove 222 wear ring 9 is installed.
During assembling this lever cylinder lower end is fixed on the substrate 20, as shown in Figure 3, and have first access way 201 that communicates with first passage 13 in substrate 20 inside, and second access way 202 that communicates with second channel 14, and be provided with seal ring 203 sealings at the intersection of the first passage 13 and first access way 201, intersection at the second channel 14 and second access way 202 is provided with seal ring 204 sealings, during work, medium is at substrate 20 and cylinder body 1 internal circulation always, need not at the unnecessary pipeline that communicates with first passage 13 and second channel 14 of substrate 20 tops layout, the iron filings of avoiding producing in the operative workpiece process can accumulate in and expose between the various pipelines in substrate top, guarantee to repeat the clamping precision, reduce the scrappage of product.Also avoid the iron filings of high temperature can scald the possibility of relieving stagnant Qi pipe simultaneously.
The working principle of corner cylinder is identical with existing corner cylinder, two guiding spiral chutes 31 are arranged on the angle pole 3, piston rod 2 moves down, steel ball 7 in the ball retainer 6 slides along two guiding spiral chutes 31 on the angle pole, force 3 rotations of piston rod 2 relative rotation bars, and then realize pressing plate 4 in the course of the work the angle of Rotation Design press down smoothly in addition according to the difference of the 31 groove Hand of spiral of spiral chute on the angle pole, control pressing plate 4 is sense of rotation in the course of the work, i.e. pressing plate 4 left-handed or dextrorotation.
Because the utility model is provided with ball retainer 6 these parts between angle pole 3 and piston portion 22, steel ball 7 is in guiding spiral chute 31 in the slippage, steel ball 7 also rolls in ball retainer 6, therefore, be rolling friction between steel ball 7 and the guiding spiral chute 31, frictional force between them is little, and the slip of steel ball 7 in guiding spiral chute 31 is smooth and easy, has guaranteed the steady of this corner cylinder work.Owing to rolling friction, the wearing and tearing of steel ball are also little simultaneously, increase the working life of entire product.
Claims (5)
1, a kind of anchor clamps corner cylinder includes cylinder body (1), is installed in piston rod (2) and angle pole (3) in the cylinder body; Wherein, piston rod (2) can rotate around the relative cylinder body of self axis (1), the bar portion (21) of piston rod (2) stretches out cylinder body (1) back and links to each other with pressing plate (4), piston rod (2) cooperates with cylinder body (1) inwall liquid sealing, and cylinder body (1) inner space is separated into upper and lower two Seal cages (11,12), have first passage (13) that communicates with last Seal cage (11) and the second channel (14) that communicates with lower seal chamber (12) on the cylinder body (1); Described angle pole (3) links to each other with the bottom (5) of cylinder body (1), angle pole (3) inserts piston rod (2) from piston rod (2) bottom, and piston rod (2) but relative rotation bar (3) rotation is provided with two guiding spiral chutes (31) vertically relatively on the angle pole (3); It is characterized in that: piston portion (22) lower end surface of described piston rod (2) has a holding cavity (221), this holding cavity (221) internal fixation has a ball retainer (6), the steel ball (7) that matches with described guiding spiral chute (31) is housed in the ball retainer (6), this steel ball (7) can roll in ball retainer (6), and described ball retainer (6) is passed in angle pole (3) activity.
2, anchor clamps corner cylinder according to claim 1, it is characterized in that: described first passage (13) along cylinder body (1) side-wall shaft to setting, first passage (13) axially runs through the bottom surface of cylinder body (1) and communicates with the external world, described second channel (14) equally along cylinder body (1) side-wall shaft to setting, second channel (14) axially runs through the bottom surface of cylinder body (1) and communicates with the external world.
3, anchor clamps corner cylinder according to claim 1, it is characterized in that: described ball retainer (6) is formed with a plurality of positioning holes (61) at its side face spaced radial, the piston portion (22) of piston rod (2) is provided with first circular groove (222) at outer circumferential face, radially be formed with the corresponding radial direction through hole (223) of a plurality of and described positioning hole (61) in first circular groove (222) at interval, it is interior so that ball retainer (6) is fixed in the holding cavity (221) that one locating stud (8) passes radial direction through hole (223) back insertion positioning hole (61), and wear ring (9) is installed in described first circular groove (222).
4, according to claim 1,2 or 3 described anchor clamps corner cylinders, it is characterized in that: be provided with first seal ring (10) sealing between the piston portion (22) of described piston rod (2) and cylinder body (1) inwall, first seal ring (10) is installed on second circular groove (224) of piston portion (22) outer circumferential face, also be provided with second seal ring (15) sealing between the bar portion (21) of piston rod (2) and cylinder body (1) inwall, second seal ring (15) is installed on the inner peripheral surface circular groove of cylinder body (1) axial hole (16).
5, anchor clamps corner cylinder according to claim 1, it is characterized in that: described angle pole (3) passes the bottom (5) of cylinder body, and it is fixing with the bottom (5) of cylinder body (1) by straight pin (17), and between the endoporus of the outer circumferential face of angle pole (3) and cylinder body bottom (5), being provided with the 3rd seal ring (18) sealing, the 3rd seal ring (18) is installed in the circular groove (32) of angle pole (3) outer circumferential face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200881875U CN201241892Y (en) | 2008-06-12 | 2008-06-12 | Corner cylinder for fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200881875U CN201241892Y (en) | 2008-06-12 | 2008-06-12 | Corner cylinder for fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201241892Y true CN201241892Y (en) | 2009-05-20 |
Family
ID=40715185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200881875U Expired - Lifetime CN201241892Y (en) | 2008-06-12 | 2008-06-12 | Corner cylinder for fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201241892Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671340A (en) * | 2013-09-05 | 2014-03-26 | 常熟市董浜镇徐市盛峰液压配件厂 | Hydraulic cylinder |
| TWI507621B (en) * | 2013-02-27 | 2015-11-11 | ||
| CN106945838A (en) * | 2017-04-01 | 2017-07-14 | 南京工业职业技术学院 | A kind of agriculture aircraft remote sensor rotating lifting gear |
| CN107795545A (en) * | 2017-10-20 | 2018-03-13 | 东莞市嘉刚机电科技发展有限公司 | Corner oil hydraulic cylinder S bar corner accuracies testing agency |
| CN111102268A (en) * | 2019-12-30 | 2020-05-05 | 宁波文泽机电技术开发有限公司 | Oil cylinder |
-
2008
- 2008-06-12 CN CNU2008200881875U patent/CN201241892Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI507621B (en) * | 2013-02-27 | 2015-11-11 | ||
| CN103671340A (en) * | 2013-09-05 | 2014-03-26 | 常熟市董浜镇徐市盛峰液压配件厂 | Hydraulic cylinder |
| CN106945838A (en) * | 2017-04-01 | 2017-07-14 | 南京工业职业技术学院 | A kind of agriculture aircraft remote sensor rotating lifting gear |
| CN107795545A (en) * | 2017-10-20 | 2018-03-13 | 东莞市嘉刚机电科技发展有限公司 | Corner oil hydraulic cylinder S bar corner accuracies testing agency |
| CN107795545B (en) * | 2017-10-20 | 2023-12-05 | 东莞市嘉刚机电科技发展有限公司 | Angle accuracy detection mechanism for S rod of angle oil hydraulic cylinder |
| CN111102268A (en) * | 2019-12-30 | 2020-05-05 | 宁波文泽机电技术开发有限公司 | Oil cylinder |
| CN111102268B (en) * | 2019-12-30 | 2021-08-27 | 山东金利液压科技有限公司 | Oil cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090520 |