CN201807925U - Shift rack positioning mechanism in lathe spindle clamping device - Google Patents
Shift rack positioning mechanism in lathe spindle clamping device Download PDFInfo
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- CN201807925U CN201807925U CN2010205203048U CN201020520304U CN201807925U CN 201807925 U CN201807925 U CN 201807925U CN 2010205203048 U CN2010205203048 U CN 2010205203048U CN 201020520304 U CN201020520304 U CN 201020520304U CN 201807925 U CN201807925 U CN 201807925U
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- shifting rack
- main shaft
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- 210000000078 claw Anatomy 0.000 claims description 22
- 210000003746 feather Anatomy 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 240000007643 Phytolacca americana Species 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model provides a shift rack positioning mechanism in a lathe spindle clamping device, which belongs to the technical field of machinery and solves the technical problems of poorer peripheral positioning between a three-jaw ejector rod and a spindle and the like in the prior art. The shift rack positioning mechanism comprises a bush sleeved at the tail end of the spindle, a bearing is sleeved outside the bush, a shift rack is sleeved on the bearing, an inner ring of the bearing is fixedly connected with the bush, an outer ring of the bearing is fixedly connected with the shift rack, a connector capable fixedly connecting the bush with a pull tube is arranged between the outer end of the bush and the pull tube, a plurality of positioning keys are arranged between the bush and the spindle, a chute communicated with an inner end face of the bush is arranged on the inner side surface of the bush, parts of the positioning keys are positioned in the chute, and the positioning keys can partially slide off the chute when the bush moves outwardly and axially along the spindle under the action of the shift rack. The shift rack positioning mechanism is simple in structure, so that operational stability of the integral spindle clamping device is better. The shift rack positioning mechanism is fine in technical performance since an end cover and the pull tube are clamped together via screws.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of lathe spindle clamping device, the Shifting rack detent mechanism in particularly a kind of lathe spindle clamping device.
Background technology
Lathe is provided with anchor clamps workpiece is clamped, and early stage lathe generally adopts scroll chuck as anchor clamps, but the clamping precision of scroll chuck is not high, and the disqualification rate of the product that causes thus is high always, and operating efficiency is also lower.After this, the clamping device that the employing nut manually compresses appears, though the precision of clamping rises the consuming time and effort of manual setting to some extent.
More present a kind of self-centering grip device of high-end machine adopted, as the disclosed a kind of numerical control universal joint bell shell Internal Spherical Surface grinding machine of patent (CN2741715Y) from aroused in interest grip device, comprise main shaft, hydraulic unlock mechanism and clamp mechanism, clamp mechanism comprises by trombone slide, help pull a cart, collet, the outside fix cover, butterfly spring, the end face location-plate, top, dead head and spring are formed, the outside fix cover is positioned at front-end of spindle, collet is positioned at the outside fix cover with helping pull a cart, help pull a cart and be positioned at the inboard of collet and both are connected, trombone slide is positioned at main shaft, one end of trombone slide extends to the outside of the tail end of main shaft, and the other end of trombone slide links to each other with helping pull a cart.Hydraulic unlock mechanism comprises the cylinder that is fixed on the main spindle box rear end, links to each other by a syndeton between the outer end of cylinder and trombone slide.
Syndeton is general as the disclosed a kind of clamping device of patent (CN2850774Y), comprise the Shifting rack that links to each other with cylinder, frame is provided with support, support is provided with main shaft, is provided with trombone slide in the main shaft, and the trombone slide in the main shaft links to each other with the three-jaw push rod, be provided with bearing between three-jaw push rod and the Shifting rack, bearing up and down both sides respectively has a bearing clamping slot, steps up on the groove a poke rod should be arranged, and poke rod is fitted on the Shifting rack.This device can be realized the connection between Shifting rack and the trombone slide, but the circumferential location between three-jaw push rod and the main shaft is poor, generally adopts the alignment pin location, and long-time the use can be worn and torn, and it is also poor to meet with stresses.
Summary of the invention
The purpose of this utility model is the problems referred to above that exist at existing technology, and the Shifting rack detent mechanism in a kind of lathe spindle clamping device of good operating stability is provided.
The purpose of this utility model can realize by following technical proposal: the Shifting rack detent mechanism in a kind of lathe spindle clamping device, this detent mechanism is between Shifting rack and main shaft, comprise the lining that is set on the main shaft tail end, the described lining outside is arranged with bearing, described Shifting rack is set on the bearing, described bearing inner race and lining are connected, described bearing outer ring and Shifting rack are connected, it is characterized in that, be provided with the connector that both are connected between described lining outer end and the trombone slide, be provided with several positioning keys between described lining and the main shaft, offer the chute that connects with its inner face on the medial surface of described lining, described positioning key partly is positioned at chute, and can partly skid off chute when described lining described positioning key when the effect lower edge of Shifting rack main shaft outwards moves axially.
The operation principle of this device is as follows: according to prior art as can be known main shaft be arranged on the support, Shifting rack links to each other with cylinder on being connected in support, when cylinder when the effect lower piston rod of controlling organization is done the push-and-pull campaign, drive the same moved further of Shifting rack, Shifting rack drives the same moved further of bearing, and bearing drive lining moves along the axial direction of main shaft.When lining was mobile laterally, positioning key partly skidded off chute, and lining drives trombone slide and moves laterally together, and trombone slide drives the collet that is positioned at front-end of spindle and tightens up to rear side, and collet clamps workpiece; When lining inwardly resetted, the part that positioning key skids off was got back in the chute, and lining drives trombone slide and moves to the inside, and trombone slide drives the expansion of collet forward end, and collet unclamps workpiece; When lining moved axially with respect to main shaft, because the effect of positioning key, lining and main shaft rotated together synchronously.This apparatus structure is simple, and many positioning keys are set between lining and main shaft, makes both connections more firm, can bear higher impact force, thereby make that the clamping device job stability of whole main shaft is better.
In the Shifting rack detent mechanism in above-mentioned a kind of lathe spindle clamping device, described positioning key has three, is the circumferentially evenly distribution along main shaft, and above-mentioned chute is corresponding one by one with positioning key respectively.Equally distributed positioning key is stressed average, and the working time is longer.
In the Shifting rack detent mechanism in above-mentioned a kind of lathe spindle clamping device, be arranged with belt wheel on the described main shaft, described belt wheel is positioned at the inboard of lining, and above-mentioned positioning key partly extends between belt wheel and the main shaft.Positioning key can play belt wheel and the circumferentially effect of location of main shaft, makes between belt wheel and the main shaft and has saved keeper.
In the Shifting rack detent mechanism in above-mentioned a kind of lathe spindle clamping device, described positioning key is flat key or feather key.
In the Shifting rack detent mechanism in above-mentioned a kind of lathe spindle clamping device, be provided with several claws between described bearing and the lining, described lining inner end has the retaining edge, the inner face of described bearing inner race and this retaining are along leaning, described lining lateral surface offers and runs through the locating slot that keeps off the edge, described claw is positioned at locating slot, and the inner end of this claw has projection, described projection snaps onto retaining along last, and the outer end of described claw is upturned and is fastened on the outer face of bearing inner race.The front end of retaining edge and claw is fastened on two end faces of bearing inner race respectively, and bearing and lining are connected.
In the Shifting rack detent mechanism in above-mentioned a kind of lathe spindle clamping device, described claw has three, respectively circumferentially evenly distributing along lining.
In the Shifting rack detent mechanism in above-mentioned a kind of lathe spindle clamping device, described connector comprises the end cap that a inner is connected with bush threads, offer the groove of annular on the described trombone slide, described end cap is set on the groove, described end cap outer end radially is equipped with screw, and the end of described screw is resisted against on the bottom surface of groove.When screw was tightened, screw was resisted against on the bottom surface of groove, by being connected of screw and groove end cap and trombone slide being connected, just can make the same moved further of trombone slide by end cap like this when lining moves.
In the Shifting rack detent mechanism in above-mentioned a kind of lathe spindle clamping device, be provided with several contiguous blocks between described Shifting rack and the bearing outer ring, has cavity on the medial surface of described contiguous block, described bearing outer ring partly is fastened in the cavity, and the outside and the Shifting rack of described contiguous block are connected.When Shifting rack moved, the effect of the inwall by cavity made the same moved further of bearing.
Compared with prior art, this detent mechanism is simple in structure, and many positioning keys are set between lining and main shaft, makes both connections more firm, can bear higher impact force, thereby make that the clamping device job stability of whole main shaft is better; Pass through screw clamping, good manufacturability between end cap and the trombone slide.
Description of drawings
Fig. 1 is the structure assembling schematic diagram of this detent mechanism.
Fig. 2 is the A-A cutaway view among Fig. 1.
Among the figure, 1, support; 2, main shaft; 3, lining; 4, bearing; 5, claw; 6, locating slot; 7, positioning key; 8, chute; 9, belt wheel; 10, end cap; 11, screw; 12, trombone slide; 12a, groove; 13, contiguous block; 13a, cavity; 14, Shifting rack; 15, cylinder; 16, fixed bar.
The specific embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As depicted in figs. 1 and 2, the lathe spindle clamping device comprises the support 1 that is installed on the frame, support 1 is provided with main shaft 2, the inside of main shaft 2 is equipped with trombone slide 12, one end of trombone slide 12 extends to the outside, rear end of main shaft 2, the front end inside of main shaft 2 is provided with collet, and collet links to each other with the other end of trombone slide 12.Support 1 is provided with cylinder 15, it is hinged that the piston rod of cylinder 15 and one are set in the side of Shifting rack 14 in main shaft 2 outsides, the opposite side of Shifting rack 14 is hinged with the end that is connected in the fixed bar 16 on the support 1, when the piston rod of cylinder 15 moves, Shifting rack 14 is moved forward and backward by two pin joints.
This detent mechanism is arranged between Shifting rack 14 and the main shaft 2, comprise the lining 3 that is set on main shaft 2 tail ends, lining 3 outsides are arranged with bearing 4, Shifting rack 14 is set in outside the bearing 4, bearing 4 inner rings and lining 3 are connected, bearing 4 outer rings and Shifting rack 14 are connected, be provided with the connector that both are connected between lining 3 outer ends and the trombone slide 12, be provided with three positioning keys 7 between lining 3 and the main shaft 2, offer the chute 8 that connects with its inner face on the medial surface of lining 3, positioning key 7 parts are positioned at chute 8, and can partly skid off chute 8 when lining 3 positioning key 7 when the effect lower edge of Shifting rack 14 main shaft 2 outwards moves axially.Positioning key 7 is along circumferentially evenly the distributing of main shaft 2, and chute 8 is corresponding one by one with positioning key 7 respectively, and equally distributed positioning key 7 is stressed average, and the working time is longer.
Be provided with two contiguous blocks 13 between Shifting rack 14 and bearing 4 outer rings, have cavity 13a on the medial surface of contiguous block 13, bearing 4 outer ring parts are fastened in the cavity 13a, and the outside of contiguous block 13 and Shifting rack 14 are connected.When Shifting rack 14 moved, the effect of the inwall by cavity 13a made bearing 4 same moved further.
Be arranged with belt wheel 9 on the main shaft 2, belt wheel 9 is positioned at the inboard of lining 3, and positioning key 7 parts extend between belt wheel 9 and the main shaft 2.Positioning key 7 can play belt wheel 9 and the circumferentially effect of location of main shaft 2, makes between belt wheel 9 and the main shaft 2 and has saved location structure.
By three claws, 5 location, claw 5 distributes along the circumferentially even of lining 3 respectively between bearing 4 inner rings and lining 3 between bearing 4 and the lining 3.Lining 3 inner ends have the retaining edge, the inner face of bearing 4 inner rings and this retaining are along leaning, lining 3 lateral surfaces offer and run through the locating slot 6 that keeps off the edge, claw 5 is positioned at locating slot 6, and the inner end of this claw 5 has projection, projection snaps onto retaining along last, and the outer end of claw 5 is upturned and is fastened on the outer face of bearing 4 inner rings.Bearing 4 assembles in the lateral of lining 3, bearing 4 is pressed in the locating slot 6 outer end with claw 5 through claw 5 outer ends, after all passing through on bearing 4, knock the inner end of claw 5, make the outer end of claw 5 stretch out locating slot 6 and be upturned, the front end of retaining edge and claw 5 is fastened on two end faces of bearing 4 inner rings respectively, and bearing 4 and lining 3 are connected.
Connector between lining 3 and the trombone slide 12 comprises the end cap 10 that the inner and lining 3 are threaded, offer the groove 12a of annular on the trombone slide 12, end cap 10 is set on the groove 12a, and end cap 10 outer ends radially are equipped with screw 11, and the end of screw 11 is resisted against on the bottom surface of groove 12a.When screw 11 was tightened, screw 11 was resisted against on the bottom surface of groove 12a the medial surface of end cap 10, was connected by making screw 11 and being connected of groove 12a end cap 10 and trombone slide 12, just can make trombone slide 12 same moved further by end cap 10 like this when lining 3 moves.
Positioning key 7 is flat key or feather key in the present embodiment.
The operation principle of this device is as follows: main shaft 2 is arranged on the support 1, Shifting rack 14 links to each other with cylinder 15 on being connected in support 1, when cylinder 15 when the effect lower piston rod of controlling organization is done the push-and-pull campaign, drive Shifting rack 14 same moved further, Shifting rack 14 drives bearing 4 same moved further, and bearing 4 drive linings 3 move along the axial direction of main shaft 2.When lining 3 was mobile laterally, positioning key 7 parts skidded off chute 8, and lining 3 drives trombone slide 12 and moves laterally together, and trombone slide 12 drives the collet that is positioned at main shaft 2 front ends and tightens up to rear side, and collet clamps workpiece; When lining 3 inwardly resetted, the part that positioning key 7 skids off was got back in the chute 8, and lining 3 drives trombone slide 12 and moves to the inside, and trombone slide 12 drives the expansion of collet forward end, and collet unclamps workpiece; When lining 3 moved axially with respect to main shaft 2, because the effect of positioning key 7, lining 3 and main shaft 2 rotated together synchronously.This apparatus structure is simple, between lining 3 and main shaft 2 many positioning keys 7 is set, and makes both connections more firm, can bear higher impact force, thereby make that the clamping device job stability of whole main shaft 2 is better.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (8)
1. the Shifting rack detent mechanism in the lathe spindle clamping device, this detent mechanism is positioned between Shifting rack (14) and the main shaft (2), comprise the lining (3) that is set on main shaft (2) tail end, described lining (3) outside is arranged with bearing (4), described Shifting rack (14) is set on the bearing (4), described bearing (4) inner ring and lining (3) are connected, described bearing (4) outer ring and Shifting rack (14) are connected, it is characterized in that, be provided with the connector that both are connected between described lining (3) outer end and the trombone slide (12), be provided with several positioning keys (7) between described lining (3) and the main shaft (2), offer the chute (8) that connects with its inner face on the medial surface of described lining (3), described positioning key (7) part is positioned at chute (8), and when described lining (3) the effect lower edge of Shifting rack (14) main shaft (2) when outwards moving axially described positioning key (7) can partly skid off chute (8).
2. the Shifting rack detent mechanism in a kind of lathe spindle clamping device according to claim 1, it is characterized in that, described positioning key (7) has three, be along circumferentially evenly the distributing of main shaft (2), above-mentioned chute (8) respectively and positioning key (7) corresponding one by one.
3. the Shifting rack detent mechanism in a kind of lathe spindle clamping device according to claim 2, it is characterized in that, be arranged with belt wheel (9) on the described main shaft (2), described belt wheel (9) is positioned at the inboard of lining (3), and above-mentioned positioning key (7) part extends between belt wheel (9) and the main shaft (2).
4. according to the Shifting rack detent mechanism in claim 1 or the 2 or 3 described a kind of lathe spindle clamping devices, it is characterized in that described positioning key (7) is flat key or feather key.
5. according to the Shifting rack detent mechanism in claim 1 or the 2 or 3 described a kind of lathe spindle clamping devices, it is characterized in that, be provided with several claws (5) between described bearing (4) and the lining (3), described lining (3) inner end has the retaining edge, the inner face of described bearing (4) inner ring and this retaining are along leaning, described lining (3) lateral surface offers and runs through the locating slot (6) that keeps off the edge, described claw (5) is positioned at locating slot (6), and the inner end of this claw (5) has projection, described projection snaps onto retaining along last, and the outer end of described claw (5) is upturned and is fastened on the outer face of bearing (4) inner ring.
6. the Shifting rack detent mechanism in a kind of lathe spindle clamping device according to claim 5 is characterized in that described claw (5) has three, respectively circumferentially evenly distributing along lining (3).
7. according to the Shifting rack detent mechanism in claim 1 or the 2 or 3 described a kind of lathe spindle clamping devices, it is characterized in that, described connector comprises the end cap (10) that the inner and lining (3) are threaded, offer the groove (12a) of annular on the described trombone slide (12), described end cap (10) is set on the groove (12a), described end cap (10) outer end radially is equipped with screw (11), and the end of described screw (11) is resisted against on the bottom surface of groove (12a).
8. according to the Shifting rack detent mechanism in claim 1 or the 2 or 3 described a kind of lathe spindle clamping devices, it is characterized in that, be provided with several contiguous blocks (13) between described Shifting rack (14) and bearing (4) outer ring, has cavity (13a) on the medial surface of described contiguous block (13), described bearing (4) outer ring part is fastened in the cavity (13a), and the outside of described contiguous block (13) and Shifting rack (14) are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205203048U CN201807925U (en) | 2010-09-07 | 2010-09-07 | Shift rack positioning mechanism in lathe spindle clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205203048U CN201807925U (en) | 2010-09-07 | 2010-09-07 | Shift rack positioning mechanism in lathe spindle clamping device |
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| Publication Number | Publication Date |
|---|---|
| CN201807925U true CN201807925U (en) | 2011-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205203048U Expired - Fee Related CN201807925U (en) | 2010-09-07 | 2010-09-07 | Shift rack positioning mechanism in lathe spindle clamping device |
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| CN (1) | CN201807925U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109877624A (en) * | 2019-04-16 | 2019-06-14 | 东创智能装备(深圳)有限公司 | A kind of hollow air clamper |
-
2010
- 2010-09-07 CN CN2010205203048U patent/CN201807925U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109877624A (en) * | 2019-04-16 | 2019-06-14 | 东创智能装备(深圳)有限公司 | A kind of hollow air clamper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TAIZHOU SHUANGZHENG MACHINE TOOLS CO., LTD. Free format text: FORMER OWNER: CHEN YUNFA Effective date: 20131212 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131212 Address after: Taizhou City, Zhejiang province 317609 Longxi Township Yuhuan County Hua Yan Pu Cun Patentee after: TAIZHOU SHUANGZHENG MACHINE TOOLS CO., LTD. Address before: 317609, Yuhuan County, Zhejiang province Taizhou Longxi Industrial Park Taizhou Li machine tool manufacturing Co., Ltd. Patentee before: Chen Yunfa |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151214 Address after: 317609 Yuhuan County City, Zhejiang province Longxi Town Industrial Zone Patentee after: ZHEJIANG SHUANGZHENG MACHINE TOOL CO., LTD. Address before: Taizhou City, Zhejiang province 317609 Longxi Township Yuhuan County Hua Yan Pu Cun Patentee before: TAIZHOU SHUANGZHENG MACHINE TOOLS CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 317609 No. 58 Changshun Road, Shamen Industrial Zone, Yuhuan City, Taizhou City, Zhejiang Province Patentee after: Zhejiang Shuangzheng Science and Technology Co., Ltd. Address before: 317609 Longxi Town Industrial Zone, Yuhuan County, Taizhou City, Zhejiang Province Patentee before: ZHEJIANG SHUANGZHENG MACHINE TOOL CO., LTD. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20190907 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |