CN203956600U - A kind of for pressing from both sides the pneumatic type lathe automatic material returning fixture of workpiece - Google Patents
A kind of for pressing from both sides the pneumatic type lathe automatic material returning fixture of workpiece Download PDFInfo
- Publication number
- CN203956600U CN203956600U CN201420272206.5U CN201420272206U CN203956600U CN 203956600 U CN203956600 U CN 203956600U CN 201420272206 U CN201420272206 U CN 201420272206U CN 203956600 U CN203956600 U CN 203956600U
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- CN
- China
- Prior art keywords
- expansion joint
- workpiece
- clamp body
- compressed air
- piston rod
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Abstract
The utility model discloses a kind of for pressing from both sides the pneumatic type lathe automatic material returning fixture of workpiece, hydraulic jack, clamp body and main shaft, described hydraulic jack is connected by main shaft with clamp body, the front end of described clamp body is provided with an expansion joint, the end face of described expansion joint is provided with ratchet, the center of workpiece is provided with a shrinkage pool coordinating with described expansion joint, the end face of described shrinkage pool is provided with the mating surface with described click-fit, the middle part of described clamp body is provided with a circular compressed air channel, described compressed air channel is connected with a piston rod near one end of described expansion joint, the outer end of described piston rod is provided with one and pushes against piece, on the described end face that pushes against piece, be connected with a cone centre, described piston rod is positioned at the inside of described expansion joint, described pushes against piece for expansion joint is opened.The utility model aim to provide a kind of material returned fast, not can to workpiece cause damage for pressing from both sides the pneumatic type lathe automatic material returning fixture of workpiece.
Description
Technical field
The utility model relates to a kind of manufacture and manufacture field of Digit Control Machine Tool, particularly a kind of for pressing from both sides the pneumatic type lathe automatic material returning fixture of workpiece.
Background technology
Modern NC Machine Tool set the advanced technologies such as electronic computer, servo-drive system, automatic control system, precision measurement system and novel mechanism, can machining shape complexity, precision, parts in small batch, and there is the features such as machining accuracy is high, production efficiency is high, strong adaptability.
In order to keep accuracy and the rapidity of process, existing technique has been abandoned traditional workpiece by after processing and has been struck the method for getting off from fixture one by one, such as patent CN201120481556 discloses a kind of automatic material returning fixture of lathe, this scheme by the connecting axle design of fixture become can be flexible structure, in the time that clamp body retreats, drive this connecting axle to return, under the effect of baffle plate, workpiece comes off from fixture.But this scheme has some defects in actual applications, such as in the time colliding with stripper, rigid collision easily produces hot candied phenomenon on the surface of workpiece, and spends and easily cause workpiece damage distortion large in the situation that in impact force.
Utility model content
The purpose of this utility model be to provide a kind of material returned fast, not can to workpiece cause damage for pressing from both sides the pneumatic type lathe automatic material returning fixture of workpiece.
The technical scheme that the utility model provides is: a kind of for pressing from both sides the pneumatic type lathe automatic material returning fixture of workpiece, hydraulic jack, clamp body and main shaft, described hydraulic jack is connected by main shaft with clamp body, the front end of described clamp body is provided with an expansion joint, the end face of described expansion joint is provided with ratchet, the center of workpiece is provided with a shrinkage pool coordinating with described expansion joint, the end face of described shrinkage pool is provided with the mating surface with described click-fit, the middle part of described clamp body is provided with a circular compressed air channel, described compressed air channel is connected with a piston rod near one end of described expansion joint, the outer end of described piston rod is provided with one and pushes against piece, on the described end face that pushes against piece, be connected with a cone centre, described piston rod is positioned at the inside of described expansion joint, described pushes against piece for expansion joint is opened, the outside of described expansion joint is provided with a turn, the length of described expansion joint is identical with the degree of depth of the recess of workpiece, described compressed air channel is connected with reversal valve away from the opening part of described expansion joint, described reversal valve is provided with compressed air source inlet and atmosphere outlet.
Described, for pressing from both sides the pneumatic type lathe automatic material returning fixture of workpiece, described reversal valve is two position three way directional control valve.
Of the present utility model for pressing from both sides pneumatic type lathe automatic material returning fixture employing expansion joint and the click-fit of workpiece, be used for driving workpiece and fixture to keep synchronized rotation, expansion joint in this programme is backed down under compressed-air actuated effect, workpiece is fixed and driven, after workpiece cutting finishes, compression cylinder is regained, send the signal of telecommunication to reversal valve, compressed air in compressed air channel is by emptying, expansion joint is regained under the effect of turn, ratchet direction changes, the surface that slightly pushes workpiece shrinkage pool makes workpiece loosening, because expansion joint shrinks, workpiece falls down naturally, whole scenario-frame is simple, convenient and reliable operation, to workpiece not damaged.
Brief description of the drawings
Fig. 1 is the cutaway view of specific embodiment of the utility model 1;
Fig. 2 is the cutaway view after the installation workpiece of specific embodiment of the utility model 1.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the technical solution of the utility model is described in further detail, but does not form any restriction of the present utility model.
Embodiment 1
As shown in Figure 1 to Figure 2, a kind of for pressing from both sides the pneumatic type lathe automatic material returning fixture of workpiece, hydraulic jack 1, clamp body 2 and main shaft 3, described hydraulic jack 1 is connected by main shaft 3 with clamp body 2, the front end of described clamp body 2 is provided with an expansion joint 4, the end face of described expansion joint 4 is provided with ratchet 5, the center of workpiece is provided with a shrinkage pool coordinating with described expansion joint 4, the end face of described shrinkage pool is provided with the mating surface coordinating with described ratchet 5, the middle part of described clamp body 2 is provided with a circular compressed air channel 6, described compressed air channel 6 is connected with a piston rod 7 near one end of described expansion joint 4, the outer end of described piston rod 7 is provided with one and pushes against piece 8, on the described end face that pushes against piece 8, be connected with a cone centre 9, described piston rod 7 is positioned at the inside of described expansion joint 4, described pushes against piece 8 for expansion joint 4 is opened, the outside of described expansion joint 4 is provided with a turn 10, the described length of expansion joint 4 is identical with the degree of depth of the recess of workpiece, described compressed air channel 6 is connected with reversal valve 11 away from the opening part of described expansion joint 4, two entrances of described reversal valve 11 are connected with compressed air source and atmosphere respectively, described reversal valve 11 is two position three way directional control valve, a valve position is that compressed air channel 6 is connected with compressed air source, another valve position is that compressed air channel 6 is connected with atmosphere.
In actual use, first, hydraulic jack 1 travels forward, the state that now two position three way directional control valve keeps and atmosphere is communicated with, expansion joint 4 shrinks, after moving to assigned address, hydraulic jack 1 halts, send the signal of telecommunication to reversal valve 11, the valve position of reversal valve 11 changes, be communicated with compressed air source, under compressed-air actuated effect, piston rod 7 travels forward, pushing against piece 8 opens expansion joint 4, the shrinkage pool interlock of cone centre 9 and ratchet 5 and instrument, the other end of workpiece also has a back centre to hold out against, top at two, ratchet 5, clamp body 2 is as under the acting in conjunction of triangle pawl dish, workpiece keeps and the synchronized rotation of clamp body 2, after workpiece process finishing, hydraulic jack 1 moves backward, until stop, send the signal of telecommunication to reversal valve 11, the valve position of reversal valve 11 changes, be communicated with atmosphere, under the effect of turn 10, expansion joint 4 shrinks, piston rod 7 retreats, ratchet 5 directions on expansion joint 4 change, by loosening workpiece top, expansion joint 4 shrinks, the landing of workpiece nature, whole process operation smoothness, to workpiece not damaged.
Above-described is only preferred embodiment of the present utility model, all any amendments of doing within the scope of spirit of the present utility model and principle, is equal to and replaces and improvement etc., within all should being included in protection domain of the present utility model.
Claims (2)
1. one kind for pressing from both sides the pneumatic type lathe automatic material returning fixture of workpiece, comprise hydraulic jack (1), clamp body (2) and main shaft (3), described hydraulic jack (1) is connected by main shaft (3) with clamp body (2), it is characterized in that, the front end of described clamp body (2) is provided with an expansion joint (4), the end face of described expansion joint (4) is provided with ratchet (5), the center of workpiece is provided with a shrinkage pool coordinating with described expansion joint (4), the end face of described shrinkage pool is provided with the mating surface coordinating with described ratchet (5), the middle part of described clamp body (2) is provided with a circular compressed air channel (6), described compressed air channel (6) is connected with a piston rod (7) near one end of described expansion joint (4), the outer end of described piston rod (7) is provided with one and pushes against piece (8), on the described end face that pushes against piece (8), be connected with a cone centre (9), described piston rod (7) is positioned at the inside of described expansion joint (4), described pushes against piece (8) for expansion joint (4) is opened, the outside of described expansion joint (4) is provided with a turn (10), the length of described expansion joint (4) is identical with the degree of depth of the recess of workpiece, described compressed air channel (6) is connected with reversal valve (11) away from the opening part of described expansion joint (4), described reversal valve (11) is provided with compressed air source inlet and atmosphere outlet.
2. according to claim 1ly it is characterized in that for pressing from both sides the pneumatic type lathe automatic material returning fixture of workpiece, described reversal valve (11) is two position three way directional control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420272206.5U CN203956600U (en) | 2014-05-26 | 2014-05-26 | A kind of for pressing from both sides the pneumatic type lathe automatic material returning fixture of workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420272206.5U CN203956600U (en) | 2014-05-26 | 2014-05-26 | A kind of for pressing from both sides the pneumatic type lathe automatic material returning fixture of workpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203956600U true CN203956600U (en) | 2014-11-26 |
Family
ID=51917237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420272206.5U Expired - Fee Related CN203956600U (en) | 2014-05-26 | 2014-05-26 | A kind of for pressing from both sides the pneumatic type lathe automatic material returning fixture of workpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203956600U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113001220A (en) * | 2021-02-25 | 2021-06-22 | 杭州希纳博智能机电科技有限公司 | Steel pipe clamp for pipe thread machining equipment |
| WO2022142202A1 (en) * | 2020-12-31 | 2022-07-07 | 江苏罡阳股份有限公司 | Hydraulic automatic expansion clamp suitable for clamping of special-shaped hole and special-shaped shaft |
-
2014
- 2014-05-26 CN CN201420272206.5U patent/CN203956600U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022142202A1 (en) * | 2020-12-31 | 2022-07-07 | 江苏罡阳股份有限公司 | Hydraulic automatic expansion clamp suitable for clamping of special-shaped hole and special-shaped shaft |
| CN113001220A (en) * | 2021-02-25 | 2021-06-22 | 杭州希纳博智能机电科技有限公司 | Steel pipe clamp for pipe thread machining equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 Termination date: 20160526 |