CN203272316U - Double-rack anti-backlash oscillating oil cylinder - Google Patents
Double-rack anti-backlash oscillating oil cylinder Download PDFInfo
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- CN203272316U CN203272316U CN 201320343885 CN201320343885U CN203272316U CN 203272316 U CN203272316 U CN 203272316U CN 201320343885 CN201320343885 CN 201320343885 CN 201320343885 U CN201320343885 U CN 201320343885U CN 203272316 U CN203272316 U CN 203272316U
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Abstract
The utility model provides a double-rack anti-backlash oscillating oil cylinder, and belongs to the field of a transmission mechanism of a machining center. A transmission driving mechanism of a conventional double-station pallet changer is complicated in structure and has low stability and relatively low precision. The double-rack anti-backlash oscillating oil cylinder comprises a hydraulic oil cylinder, a mounting support and gears, wherein the gear is arranged on a machine tool bed, the center line of the gear is vertically arranged, the oil cylinder comprises a first oil cylinder and a second oil cylinder, each oil cylinder comprises a cylinder block, an end closure and a piston rod, the cylinder blocks of the first oil cylinder and the second oil cylinder are respectively parallel to the two ends of the gears, the movement directions of the piston rods of the first oil cylinder and the second oil cylinder are perpendicular to the center lines of the gears, the middles of the cylinder blocks of the two oil cylinders are respectively provided with openings facing the directions of the gears, the middle section of each piston rod is provided with a rack corresponding to the gear, the racks are meshed with the gears in the opening directions of the cylinder blocks, the end closures comprise first end closures and second end closures which are respectively arranged at the two ends of the cylinder block of each oil cylinder in a covering manner, the first end closures are provided with oil inlet/outlet holes and buffer devices, and silencers are arranged on the second end closures.
Description
Technical field
The utility model belongs to machining center driving mechanism field, and is especially relevant with a kind of double rack gap oscillating oil cylinder that disappears.
Background technique
Pallet changer at existing Machining centershorizontal duplex position, rotation and the positioning and locking of existing pallet changer all adopt the meshed transmission gear structure, its driving mechanism adopts hydraulic jack to drive, need first with the pallet changer lifting during work, then pallet changer rotates the good positioning and locking that again pallet changer descended afterwards, when pallet changer need to turn round, need again such complex structure, cost is higher; Owing to lacking damping device, easily produce vibration, cause the grating scale vibration, affect the feedback signal of lathe automatical control system, make the pallet changer Location accuracy lower, reduced the machining accuracy of lathe.
The model utility content
The purpose of this utility model is intended to overcome the defective that the transmission driving mechanism structure is complicated, stability is not high, precision is lower of existing duplex position pallet changer, and a kind of simple in structure, good stability, double rack that precision the is high gap oscillating oil cylinder that disappears is provided.
for this reason, the utility model is by the following technical solutions: the double rack gap oscillating oil cylinder that disappears, comprise hydraulic jack, mounting bracket and gear, gear is installed on bed piece, the Gear center line is vertical setting, it is characterized in that, described oil cylinder comprises the first oil cylinder and the second oil cylinder, described each oil cylinder includes cylinder body, end cap and piston rod, the first cylinder block and the second cylinder block be the parallel gear two ends of being positioned at respectively, the piston rod movement direction of described the first oil cylinder and the second oil cylinder is vertical with described Gear center line, the middle part of described two cylinder blocks respectively is provided with opening towards the gear direction, described each piston rod stage casing is provided with the tooth bar corresponding with described gear, intermeshing at described cylinder body opening direction place's tooth bar and described gear, described end cap comprises the first end cap and the second end cap, mount cover respectively the two ends in described each cylinder block, first end covers and is provided with turnover oilhole and damping device, on the second end cap, silencer is installed
As to technique scheme replenish and perfect, the utility model also comprises following technological scheme.
End, described piston rod two ends is respectively arranged with a cylindrical projection, and the center line of cylindrical projection and described piston rod center line are on same straight line.
Described damping device comprises deceleration hole, fine setting aperture and oil extraction aperture, deceleration hole and fine setting aperture all are arranged on first end cap body interior edge face, the oil extraction aperture is arranged on first end cap body exterior edge face and lid circumferential surface, described deceleration hole is corresponding with described cylindrical projection, the little centerline hole of described fine setting is parallel with described deceleration centerline hole, is interconnected with described deceleration hole and fine setting aperture respectively at described lid portion inside oil extraction aperture.
The center line of the cylinder body of the cylinder body of described the first oil cylinder and the second oil cylinder is parallel to each other.
The cylinder body of the cylinder body of described the first oil cylinder and the second oil cylinder comprises respectively left cylinder and right cylinder body, left cylinder and right cylinder body are the hollow cylinder shape, the diameter of bore of left cylinder and right cylinder body is consistent, one intersegmental distance is set between left cylinder and right cylinder body and is fixedly connected with by mounting bracket, wherein the center line of the center line of left cylinder and right cylinder body is on same straight line, interval between left cylinder and right cylinder body forms described opening, with the cylinder body split-type design of oil cylinder, facilitate processing and the easy access dismounting of cylinder block.
Further, span between described left cylinder and right cylinder body can activity adjustment and is fixedly connected with by mounting bracket, by regulating the span between left cylinder and right cylinder body, the movement travel of piston rod in cylinder block that can the adjusting belt tooth bar, and then the adjusting gear angle of swing, do not need to arrange again other positioning meanss.
Be provided with seal arrangement between the outer circumferential face at described piston rod two ends and cylinder block surface of internal cavity, play seal action.
Be provided with the O RunddichtringO between described the first end cap and the second end cap and cylinder block surface of internal cavity, play seal action.
When the utility model used, the rotating shaft of pallet changer was connected with gear center hole by spline, rotated by gear and drove the pallet changer rotation.when pallet changer need to rotate, hydraulic oil enters in the right cylinder body of the first oil cylinder, force the left cylinder motion with past first oil cylinder of piston rod of tooth bar, because rack and pinion is intermeshing, driven gear rotation when the past left movement of piston rod, the intermeshing tooth bar of gear the other end this moment is straight line motion to the right, hydraulic oil oil return in the second right cylinder body of oil cylinder is to hydraulic station, the gear rotation drives the pallet changer rotation by spline, realize the station exchange on worktable, because mount cover the first end lid at the second right cylinder body right-hand member of oil cylinder, when the cylindrical projection on piston rod top enters into the deceleration hole, hydraulic oil in the deceleration hole can only be discharged from the oil extraction aperture that is communicated with it, the oil extraction hole diameter is much smaller than the deceleration bore dia, therefore slow down in the hole to the certain recoil force of described cylindrical projection generation, piston rod movement speed is slowed down, until entering in the deceleration hole fully, cylindrical projection do not have seismesthesia yet, played the stable buffering effect, after manufacturing procedure is completed, when pallet changer need to turn round, hydraulic oil enters in the right cylinder body of the second oil cylinder, force the left cylinder motion with past second oil cylinder of piston rod of tooth bar, the driven gear rotation, make the piston rod motion in its right cylinder body in the first cylinder block, make the hydraulic oil oil return hydraulic station in its right cylinder body, rotate by gear pallet changer is returned back to the origin-location.
Use the utility model can reach following beneficial effect: by two oil cylinders that be arranged in parallel at gear two ends, to make gear effectively increase stabilization in driving the worktable rotary process; By at oil cylinder one end, damping device being set, steadily shockproof when making gear driven worktable rotary location; By silencer is set, make oil cylinder can effectively reduce noise in the course of the work; By with cylinder block split design, be fixed by mounting bracket, make cylinder block easy to process, reduce production costs.
Description of drawings
Fig. 1 is the utility model master apparent direction schematic diagram.
Fig. 2 is the horizontal A-A generalized section of Fig. 1.
Fig. 3 is the vertical cross section schematic diagram of right oil cylinder end cap in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
as Fig. 1 ~ shown in Figure 3, the utility model comprises hydraulic jack, mounting bracket 1 and gear 12, gear 12 is installed on bed piece, gear 12 center lines are vertical setting, described oil cylinder comprises the first oil cylinder 9 and the second oil cylinder 2, described each oil cylinder includes cylinder body, end cap and piston rod 7, the center line of the first oil cylinder 9 cylinder bodies and the second oil cylinder 2 cylinder bodies is parallel to each other, and lay respectively at gear 12 two ends, piston rod 7 moving direction of the first oil cylinder 9 and the second oil cylinder 2 are vertical with gear 12 center lines, piston rod 7 ends, two ends are respectively arranged with a cylindrical projection 8, the center line of cylindrical projection 8 and piston rod 7 center lines are on same straight line, the cylinder body of the cylinder body of the first oil cylinder 9 and the second oil cylinder 2 comprises respectively left cylinder 5 and right cylinder body 10, left cylinder 5 and right cylinder body 10 are the hollow cylinder shape, left cylinder 5 is consistent with the diameter of bore of right cylinder body 10, one intersegmental distance is set between left cylinder 5 and right cylinder body 10 and is fixedly connected with by mounting bracket 1, wherein the center line of the center line of left cylinder 5 and right cylinder body 10 is on same straight line, interval between left cylinder 5 and right cylinder body 10 forms opening, span between left cylinder 5 and right cylinder body 10 can be regulated by mounting bracket 1, but piston rod 7 two ends guarantee respectively to be positioned at left cylinder 5 and right cylinder body 10, each piston rod 7 stage casings are provided with the tooth bar corresponding with gear 12 6, opening direction place's tooth bar 6 and gear 12 between left cylinder 5 and right cylinder body 10 are intermeshing, described end cap comprises the first end cap 11 and the second end cap 4, mount cover respectively in two outer ends of right cylinder body 10 and the left cylinder 5 of each oil cylinder, be provided with turnover oilhole 14 and damping device on the first end cap 11, on the second end cap 4, silencer 3 is installed, wherein damping device comprises deceleration hole 15, fine setting aperture 17 and oil extraction aperture 16, deceleration hole 15 and fine setting aperture 17 all are arranged on the first end cap 11 lid interior edge faces, oil extraction aperture 16 is arranged on the first end cap 11 lid exterior edge faces and lid circumferential surface, described deceleration hole 15 is corresponding with described cylindrical projection 8, described fine setting aperture 17 center lines are parallel with described deceleration hole 15 center lines, in lid portion inside, oil extraction aperture 16 is interconnected respectively with described deceleration hole 15 and fine setting aperture 17, be provided with seal arrangement between the outer circumferential face at piston rod 7 two ends and cylinder block surface of internal cavity, be provided with the O RunddichtringO between the first end cap 11 and the second end cap 4 and cylinder block surface of internal cavity, all play seal action.
When the utility model used, the rotating shaft of pallet changer was connected with gear 12 center holes by spline 13, rotated by gear 12 and drove the pallet changer rotation.when pallet changer need to rotate, hydraulic oil enters in the right cylinder body 10 of the first oil cylinder 9, force left cylinder 5 motions with piston rod 7 past first oil cylinders 9 of tooth bar 6, because tooth bar 6 and gear 12 are intermeshing, driven gear 12 rotations when piston rod 7 past left movement, gear 12 intermeshing tooth bars 6 of the other end this moment straight line motion to the right, most of hydraulic oil oil return in the second right cylinder body 10 of oil cylinder 2 is to hydraulic station, gear 12 rotations drive the pallet changer rotation by spline 13, realize the station exchange on worktable, because mount cover first end lid 11 at the second right cylinder body 10 right-hand members of oil cylinder 2, when the cylindrical projection 8 on piston rod 7 tops enters into deceleration hole 15, hydraulic oil in deceleration hole 15 can only be discharged from the oil extraction aperture 16 that is communicated with it, oil extraction aperture 16 diameters are much smaller than deceleration hole 15 diameters, therefore slow down and described cylindrical projection 8 is produced certain recoil force in hole 15, piston rod 7 movement velocitys are slowed down, until entering in deceleration hole 15 fully, cylindrical projection 8 do not have seismesthesia yet, played the stable buffering effect, after manufacturing procedure is completed, when pallet changer need to turn round, hydraulic oil enters in the right cylinder body 10 of the second oil cylinder 2, force left cylinder 5 motions with piston rod 7 past second oil cylinders 2 of tooth bar 6, driven gear 12 rotations, make the past interior motion of its right cylinder body 10 of piston rod 7 in the first oil cylinder 9 cylinder bodies, make the hydraulic oil oil return hydraulic station in its right cylinder body 10, by gear 12 rotations, pallet changer is returned back to the origin-location.
Claims (8)
1. the double rack gap oscillating oil cylinder that disappears, comprise hydraulic jack, mounting bracket (1) and gear (12), gear (12) is installed on bed piece, gear (12) center line is vertical setting, it is characterized in that: described oil cylinder comprises the first oil cylinder (9) and the second oil cylinder (2), described each oil cylinder includes cylinder body, end cap and piston rod (7), the first oil cylinder (9) cylinder body and the second oil cylinder (2) cylinder body be parallel gear (12) two ends of being positioned at respectively, piston rod (7) moving direction of described the first oil cylinder (9) and the second oil cylinder (2) is vertical with gear (12) center line, the middle part of described two cylinder blocks respectively is provided with opening towards gear (12) direction, described each piston rod (7) stage casing is provided with the tooth bar (6) corresponding with gear (12), intermeshing at described cylinder body opening direction place's tooth bar (6) and described gear (12), described end cap comprises the first end cap (11) and the second end cap (4), mount cover respectively the two ends in described each cylinder block, be provided with turnover oilhole (14) and damping device on the first end cap (11), silencer (3) is installed on the second end cap (4).
2. the double rack according to claim 1 gap oscillating oil cylinder that disappears is characterized in that: described piston rod (7) end, two ends is respectively arranged with a cylindrical projection (8), and the center line of cylindrical projection (8) and piston rod (7) center line are on same straight line.
3. the double rack according to claim 2 gap oscillating oil cylinder that disappears, it is characterized in that: described damping device comprises deceleration hole (15), fine setting aperture (17) and oil extraction aperture (16), deceleration hole (15) and fine setting aperture (17) all are arranged on the first end cap (11) lid interior edge face, oil extraction aperture (16) is arranged on the first end cap (11) lid exterior edge face and lid circumferential surface, deceleration hole (15) is corresponding with cylindrical projection (8), fine setting aperture (17) center line is parallel with deceleration hole (15) center line, be interconnected with deceleration hole (15) and fine setting aperture (17) respectively at described lid portion inside oil extraction aperture (16).
4. the double rack according to claim 3 gap oscillating oil cylinder that disappears, it is characterized in that: the center line of the cylinder body of the cylinder body of described the first oil cylinder (9) and the second oil cylinder (2) is parallel to each other.
5. the double rack according to claim 4 gap oscillating oil cylinder that disappears, it is characterized in that: the cylinder body of the cylinder body of described the first oil cylinder (9) and the second oil cylinder (2) comprises respectively left cylinder (5) and right cylinder body (10), left cylinder (5) and right cylinder body (10) are the hollow cylinder shape, left cylinder (5) is consistent with the diameter of bore of right cylinder body (10), one intersegmental distance is set between left cylinder (5) and right cylinder body (10) and is fixedly connected with by mounting bracket (1), wherein the center line of the center line of left cylinder (5) and right cylinder body (10) is on same straight line, interval between left cylinder (5) and right cylinder body (10) forms described opening.
6. the double rack according to claim 5 gap oscillating oil cylinder that disappears is characterized in that: the span between described left cylinder (5) and right cylinder body (10) can activity adjustment and is fixedly connected with by mounting bracket (1).
7. the double rack according to claim 6 gap oscillating oil cylinder that disappears is characterized in that: be provided with seal arrangement between the outer circumferential face at described piston rod (7) two ends and cylinder block surface of internal cavity.
8. the double rack according to claim 7 gap oscillating oil cylinder that disappears, is characterized in that: be provided with the O RunddichtringO between described the first end cap (11) and the second end cap (4) and cylinder block surface of internal cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320343885 CN203272316U (en) | 2013-06-13 | 2013-06-13 | Double-rack anti-backlash oscillating oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320343885 CN203272316U (en) | 2013-06-13 | 2013-06-13 | Double-rack anti-backlash oscillating oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203272316U true CN203272316U (en) | 2013-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320343885 Expired - Lifetime CN203272316U (en) | 2013-06-13 | 2013-06-13 | Double-rack anti-backlash oscillating oil cylinder |
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| Country | Link |
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| CN (1) | CN203272316U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632751A (en) * | 2015-01-05 | 2015-05-20 | 广西大学 | Piston type oscillating cylinder |
| CN104943216A (en) * | 2015-06-30 | 2015-09-30 | 苏州农业职业技术学院 | Pneumatic and hydraulic press machine based on racks, gear and rack transmission mechanism |
| CN105508345A (en) * | 2016-01-12 | 2016-04-20 | 杭州科技职业技术学院 | Hydraulic executor with noise elimination effect |
| CN105598728A (en) * | 2016-03-31 | 2016-05-25 | 重庆工商职业学院 | Boring tool mounting method beneficial to gap elimination |
| CN107314088A (en) * | 2017-07-11 | 2017-11-03 | 宜昌长机科技有限责任公司 | A kind of variable gear ratio positions rack ancillary equipment and operating method without sideshake |
-
2013
- 2013-06-13 CN CN 201320343885 patent/CN203272316U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632751A (en) * | 2015-01-05 | 2015-05-20 | 广西大学 | Piston type oscillating cylinder |
| CN104943216A (en) * | 2015-06-30 | 2015-09-30 | 苏州农业职业技术学院 | Pneumatic and hydraulic press machine based on racks, gear and rack transmission mechanism |
| CN105508345A (en) * | 2016-01-12 | 2016-04-20 | 杭州科技职业技术学院 | Hydraulic executor with noise elimination effect |
| CN105508345B (en) * | 2016-01-12 | 2017-07-14 | 杭州科技职业技术学院 | A kind of hydraulic actuator with the effect that abates the noise |
| CN105598728A (en) * | 2016-03-31 | 2016-05-25 | 重庆工商职业学院 | Boring tool mounting method beneficial to gap elimination |
| CN105598728B (en) * | 2016-03-31 | 2018-06-19 | 重庆工商职业学院 | A kind of boring cutter installation method for being conducive to eliminate gap |
| CN107314088A (en) * | 2017-07-11 | 2017-11-03 | 宜昌长机科技有限责任公司 | A kind of variable gear ratio positions rack ancillary equipment and operating method without sideshake |
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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: 20131106 |