CN109366355B - Automatic bar clamping chuck device and clamping method thereof - Google Patents
Automatic bar clamping chuck device and clamping method thereof Download PDFInfo
- Publication number
- CN109366355B CN109366355B CN201811486650.6A CN201811486650A CN109366355B CN 109366355 B CN109366355 B CN 109366355B CN 201811486650 A CN201811486650 A CN 201811486650A CN 109366355 B CN109366355 B CN 109366355B
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- collet
- chuck
- telescopic device
- clamping
- bar
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- 238000000034 method Methods 0.000 title claims description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 107
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 230000008569 process Effects 0.000 claims description 7
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000036316 preload Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
The application discloses an automatic bar clamping chuck device, which comprises a base mechanism, a power mechanism and a chuck mechanism; the base mechanism comprises a base, a chuck mechanism supporting block base and a chuck mechanism front limit clamping seat; the collet mechanism comprises a collet, an annular telescopic device and a precision locking round nut, wherein the collet is provided with an outer conical surface which is contracted from one end to the other end, a bar placing through hole is formed in the collet along the cylindrical structure direction, one end of the collet with smaller cross section area is inserted into the annular telescopic device, and the precision locking round nut is positioned at one end of the annular telescopic device and fixedly connected with one end of the collet with smaller cross section area; the power mechanism comprises a power piece and a transmission piece. The application effectively solves the problem that the heart-shaped chuck mechanism in the prior art needs manual clamping, and also effectively solves the problem that the clamping force is insufficient due to inconsistent rotation direction of a workpiece and the direction of a deflector rod for pressing the workpiece.
Description
Technical Field
The application relates to an automatic clamping chuck device for bar stock, in particular to an automatic clamping chuck device for bar stock and a clamping method thereof when a headstock with a center and a tailstock are used for double-top excircle grinding of a workpiece.
Background
At present, when a domestic high-precision numerical control cylindrical grinding machine uses a spindle base with a center and a tailstock to grind double-top cylindrical of a workpiece, a heart chuck mechanism is generally adopted as a clamping device. However, the heart-shaped chuck mechanism is used for installing and clamping the workpiece, so that the workpiece is required to be manually placed in a through hole of the heart-shaped chuck, the workpiece is clamped by manually pre-tightening screws, and automatic feeding and discharging of a robot cannot be realized; secondly, when the rotation direction of the workpiece is opposite to the rotation direction of the deflector rod on the heart-shaped chuck mechanism, which is abutted against the workpiece, the workpiece clamping force is greatly reduced, so that the workpiece slides down in the processing process. Therefore, the clamping device is urgently needed to be invented, so that not only can the automatic feeding and discharging of the robot be realized, but also the clamping force is not changed no matter the workpiece rotates positively or negatively.
Disclosure of Invention
The application provides an automatic clamping chuck device for bar stock, which aims to solve the problem that the clamping force of a traditional heart-shaped chuck mechanism is limited in the prior art and the automatic clamping of a workpiece cannot be realized.
An automatic bar clamping chuck device comprises a base mechanism, a power mechanism and a chuck mechanism; the base mechanism comprises a base, a chuck mechanism supporting block base and a chuck mechanism front limit clamping seat, and the chuck mechanism supporting block base and the chuck mechanism front limit clamping seat are arranged on the base; the collet mechanism comprises a collet, an annular telescopic device and a precise locking round nut, wherein the cross section area of one end of the collet is larger than the cross section area of the other end of the collet, the collet is provided with an outer conical surface which is contracted from one end to the other end, the collet is provided with a bar placing through hole along the cylindrical structure direction, the outer conical surface of the collet is provided with at least 2 groove bodies, the groove bodies are communicated with the bar placing through hole, the outer vertical surface of the collet and one end with larger cross section area, one end with smaller cross section area of the collet is inserted into the annular telescopic device, the precise locking round nut is positioned at one end of the annular telescopic device and fixedly connected with one end with smaller cross section area of the collet, the annular telescopic device is fixed on a supporting block base of the collet mechanism, and one end of the annular telescopic device far away from the precise locking round nut is contacted with a limiting clamping seat in front of the collet mechanism; the power mechanism comprises a power piece and a transmission piece, the power mechanism is fixed on the base, and the power piece is contacted with the precise locking round nut through the transmission piece.
Further, the annular expansion device comprises a disc spring seat, a spring pressing plate and an elastic force adjusting screw, wherein the disc spring seat and the spring pressing plate are of annular structures, the disc spring seat is provided with a collet chuck placing inner cone through hole, the collet chuck is inserted into the collet chuck placing inner cone through hole of the disc spring seat, one end of the spring is fixed on the disc spring seat through the elastic force adjusting screw, the other end of the spring is connected with the spring pressing plate, and the precise locking round nut is located on one side of the annular expansion device with the spring pressing plate.
Further, the power mechanism is selected from one of a cylinder mechanism, an oil cylinder mechanism, a screw rod mechanism and a linear motor mechanism.
Still further, power unit is cylinder mechanism, the power spare is the cylinder, the driving medium includes linear bearing, push rod, buffer spring, briquetting, push rod one end is installed on the cylinder, the other end of push rod is met with linear bearing's one end through buffer spring, linear bearing's the other end contacts with accurate locking round nut through the briquetting.
Further, the chuck mechanism supporting block base is a chuck mechanism supporting V-block base, and the chuck mechanism supporting V-block base is a V-shaped block.
Furthermore, the disc spring seat and the spring pressing plate are respectively provided with a spring mounting hole, and the springs are fixed on the disc spring seat and the spring pressing plate through the spring mounting holes.
Further, the end with the smaller collet cross-sectional area is provided with a thread, and the end with the smaller collet cross-sectional area is locked and fixed with the precise locking round nut through the thread.
Further, the collet chuck is made of alloy steel, and the Rockwell hardness of the material is greater than 40 degrees.
Furthermore, the disc spring seat is also provided with a deflector rod.
The application also discloses a clamping method of the automatic bar clamping chuck device, which comprises the following steps:
a) Inserting the bar stock into the collet chuck bar stock placement hole; b) Inserting the end with the smaller cross section of the collet into the annular telescopic device, and locking the end with the smaller cross section of the collet by using a precise locking round nut;
c) The annular telescopic device is stretched, the outer conical surface of the collet is compressed by the annular telescopic device, the whole collet is pressed and deformed, and the bar placing hole is deformed, so that the bar is clamped;
d) Placing the chuck mechanism clamped with the bar stock on a chuck mechanism supporting block base, and clamping one end far away from the precise locking round nut on a front limiting clamping seat of the chuck mechanism;
e) The power piece pushes the transmission piece to move, pressure is applied to one end of the chuck mechanism with the precise locking round nut, the annular telescopic device is compressed under the action of the transmission piece and the front limiting clamping seat of the chuck mechanism, one end with larger collet cross section extends out of the annular telescopic device, the pretightening force of the annular telescopic device on the collet is reduced, the collet is gradually restored to the original state, and the bar placing hole on the collet is restored from deformation, so that the bar is loosened;
f) The power piece drives the transmission piece to retract, the transmission piece leaves the annular expansion joint, and the annular expansion joint starts to rebound; with the increase of the length of the ring-shaped telescopic device, one end with larger collet cross section area is sleeved into the ring-shaped telescopic device again, and the ring-shaped telescopic device applies pretightening force to the collet in the moving process by virtue of the wedge-shaped matching function of the outer conical surface of the collet and the inner conical surface of the ring-shaped telescopic device, so that the whole compression deformation is realized, a bar placing hole is generated, and bar is clamped;
g) The automatic clamping and loosening of the bar stock are realized by controlling the telescopic gas of the power piece.
Compared with the prior art, the automatic clamping device has the advantages that the base mechanism, the power mechanism and the chuck mechanism are adopted, so that the chuck device has an automatic clamping function, bars can be automatically clamped, the application of manpower is effectively avoided, the automation degree of the chuck device is improved, and the working efficiency of the chuck device is further improved. In addition, the clamping head mechanism adopted by the application can apply uniform clamping force to all angles of the bar, compared with the traditional heart-shaped clamping head mechanism, the clamping force to the bar is effectively improved, the bar can be stably fixed in the grinding process no matter the workpiece rotates positively or negatively, and the problem of workpiece sliding caused by uneven clamping force generated by the bar rotating positively or negatively is avoided.
Drawings
FIG. 1 is a schematic diagram of a device for automatically clamping a bar stock in accordance with an embodiment of the present application;
FIG. 2 is a schematic cross-sectional view of a clamping state structure of an automatic bar clamping chuck device according to an embodiment of the application;
FIG. 3 is a schematic cross-sectional view of a relaxed state structure of an automatic bar clamping chuck device according to an embodiment of the application;
FIG. 4 is a schematic view showing a clamping state of one end with a larger cross-sectional area of the collet according to the embodiment of the application;
FIG. 5 is a schematic view showing a structure of an end of a collet with a larger cross-sectional area in a relaxed state according to an embodiment of the application;
FIG. 6 is a schematic diagram of a cylinder mechanism of an automatic bar clamping chuck device according to an embodiment of the application;
FIG. 7 is a schematic diagram of a lever structure according to an embodiment of the present application.
Detailed Description
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.
An automatic bar clamping chuck device, as shown in figure 1, comprises a base mechanism, a power mechanism and a chuck mechanism; the base mechanism comprises a base 11, a chuck mechanism supporting block base 12 and a chuck mechanism front limit clamping seat 13, wherein the chuck mechanism supporting block base 12 and the chuck mechanism front limit clamping seat 13 are arranged on the base 11; the collet mechanism comprises a collet 34, an annular telescopic device and a precise locking round nut 35, wherein the sectional area 341 of one end of the collet 34 is larger than the sectional area 342 of the other end of the collet 34, the collet 34 is provided with an outer conical surface 343 which is contracted from one end to the other end, the collet 34 is provided with a bar placing through hole 344 along the cylindrical structure direction, the outer conical surface 343 of the collet 34 is provided with at least 2 groove bodies which are communicated with the bar placing through hole 344, the outer vertical surface of the collet and the end 341 with larger sectional area, the end 342 with smaller sectional area of the collet 34 is inserted into the annular telescopic device, the precise locking round nut 35 is positioned at one end of the annular telescopic device and is fixedly connected with the end 342 with smaller sectional area of the collet, the annular telescopic device is fixed on a collet mechanism supporting block base 12, and one end of the annular telescopic device far away from the precise locking round nut 35 is contacted with a front limiting clamping seat 13 of the collet mechanism; the power mechanism comprises a power piece 21 and a transmission piece 22, wherein the power piece 21 is fixed on the base 11, and the power piece 21 is contacted with the precise locking round nut 35 through the transmission piece 22.
Optionally, as shown in fig. 1, the annular telescopic device includes a disc spring seat 32, a spring 33, a spring pressing plate 31 and an elastic force adjusting screw, the disc spring seat 32 and the spring pressing plate 31 are both in an annular structure, the disc spring seat 32 is provided with a collet placing inner cone through hole, the collet 34 is inserted into the collet placing inner cone through hole of the disc spring seat 32, one end of the spring 33 is fixed on the disc spring seat 32 through the elastic force adjusting screw, the other end of the spring 33 is connected with the spring pressing plate 31, and the precision locking round nut 35 is located on one side of the annular telescopic device with the spring pressing plate 31.
Wherein, the power piece 21 is the cylinder 21, and the driving medium 22 is push rod 22, and push rod 22 is fixed with the piston of cylinder 21 and is linked.
The application method of the automatic bar clamping chuck device provided by the embodiment of the application comprises the following steps:
a) Inserting the bar into the collet bar placement hole 344, b) inserting the end of the collet 34 having the outer tapered surface 343 into the collet placement inner tapered hole of the disc spring seat 32, the threaded end being locked with the precision locking round nut 35.
c) The rotation spring force adjusting screw compresses the spring 33, and the spring 33 generates spring force by compression to react against the disc spring seat 32 and the spring pressing plate 31. The disc spring seat 32 is moved outwardly away from the spring pressing plate 31 by the elastic reaction force and is displaced with the collet 34. By the wedge-shaped fit function of the outer conical surface 344 of the collet 34 and the inner conical surface of the disc spring seat 32, the disc spring seat 32 compresses and deforms the collet 34 integrally during movement, so that the disc spring seat 32 generates a pre-tightening effect on the collet 34. As shown in fig. 2 and 4, the collet 34 is preloaded to deform the bar placement bore 344 as well, thereby gripping the bar.
d) The collet mechanism with the bar clamped is placed on the collet mechanism support block base 12.
e) The cylinder 21 is ventilated, the piston of the cylinder 21 pushes the push rod 22 to move forwards, the push rod 22 drives the pressing block and the buffer spring to move forwards, and the pressing block presses the spring pressing plate 35 to push the chuck mechanism to move forwards. During the advancing process of the chuck mechanism, the chuck mechanism is limited by the front limit clamping seat 13 of the chuck mechanism to stop advancing. The spring 33 is continuously compressed by the thrust of the pressing block, and the length of the spring 33 is reduced. As the length of the spring 33 is reduced, the preload of the disc spring seat 32 against the collet 34 is reduced. As shown in fig. 3 and 5, as the preload force decreases, the deformation of the collet 34 decreases. As the deformation of the collet 34 decreases, the bar placement hole 344 on the collet 34 recovers from the deformation, thereby releasing the bar.
f) The air cylinder 21 is disconnected, the piston of the air cylinder 21 pushes the push rod 22 to move backwards, the pressing block leaves the spring pressing plate 31, and the spring 33 starts to rebound. As the length of the spring 33 increases, the spring 33 generates an elastic force against the disc spring seat 32 and the spring pressing plate 31. The disc spring seat 32 is moved outwardly away from the spring pressing plate 31 by the elastic reaction force and is displaced with the collet 34. By the wedge-shaped fit function of the outer conical surface 343 of the collet 34 and the inner conical surface of the disc spring seat 32, the disc spring seat 32 compresses and deforms the collet 34 integrally during the moving process, so that the disc spring seat 32 has a pre-tightening effect on the collet 34. After the collet 34 is preloaded, the bar placement hole 344 is again deformed, thereby again gripping the bar.
g) The automatic control valve of the gas path controls the ventilation and the gas interruption of the cylinder 21, thereby realizing the automatic clamping and the loosening of the bar stock.
According to the embodiment of the application, the base mechanism, the power mechanism and the chuck mechanism are adopted, so that the chuck device has an automatic clamping function, and can automatically clamp bars, thereby effectively avoiding the application of manpower, improving the automation degree of the chuck device and further improving the working efficiency of the chuck device. In addition, the clamping head mechanism adopted by the application can apply uniform clamping force to all angles of the bar, compared with the traditional heart-shaped clamping head mechanism, the clamping force to the bar is effectively improved, the bar can be stably fixed in the grinding process no matter the workpiece rotates positively or negatively, and the problem of workpiece sliding caused by uneven clamping force generated by the bar rotating positively or negatively is avoided.
Optionally, the power mechanism is selected from one of a cylinder mechanism, an oil cylinder mechanism, a screw rod mechanism and a linear motor mechanism.
Specifically, as shown in fig. 6, the power mechanism is a cylinder mechanism, the power member 21 is a cylinder 21, the transmission member 22 includes a linear bearing 223, a push rod 221, a buffer spring 222, and a pressing block 224, one end of the push rod 221 is mounted on the cylinder 21, the other end of the push rod 221 is connected to one end of the linear bearing 223 through the buffer spring 222, and the other end of the linear bearing 223 is contacted to the precision locking round nut 35 through the pressing block 224.
Wherein the push rod 221 is fixedly connected with the piston of the cylinder 21.
Optionally, the chuck mechanism supporting block base 12 is a chuck mechanism supporting V block base 12, and the chuck mechanism supporting V block base 12 is a V-shaped block.
Specifically, the disc spring seat 32 and the spring pressing plate 31 are provided with spring mounting holes, and the spring 33 is fixed on the disc spring seat 32 and the spring pressing plate 31 through the spring mounting holes.
In particular, the end 342 of the collet 34 having a smaller cross-sectional area is threaded, and the end 342 of the collet 34 having a smaller cross-sectional area is locked and fixed with the precision lock nut 35 by the threads.
Optionally, the collet 34 is made of alloy steel, and the Rockwell hardness of the material is greater than 40 degrees.
In particular, as shown in fig. 7, the disc spring seat 32 is further provided with a shift lever 36.
As shown in fig. 7, two levers 36 are provided on the disc spring seat 32.
According to the embodiment of the application, the Rockwell hardness of alloy steel is more than 40 degrees, so that the collet 34 can bear larger pressure without breaking, and the collet device can clamp bars for a long time. In addition, the embodiment of the application adopts the deflector rod 36, so that a worker can drive the disc spring seat 32 to rotate by using the deflector rod, thereby driving the workpiece to rotate.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made to the specific embodiments of the present application after reading the present specification, and these modifications and variations do not depart from the scope of the application as claimed in the pending claims.
Claims (8)
1. The automatic bar clamping chuck device is characterized by comprising a base mechanism, a power mechanism and a chuck mechanism; the base mechanism comprises a base, a chuck mechanism supporting block base and a chuck mechanism front limit clamping seat, and the chuck mechanism supporting block base and the chuck mechanism front limit clamping seat are arranged on the base; the collet mechanism comprises a collet, an annular telescopic device and a precise locking round nut, wherein the cross section area of one end of the collet is larger than the cross section area of the other end of the collet, the collet is provided with an outer conical surface which is contracted from one end to the other end, a bar placing through hole is formed in the collet along the cylindrical structure direction, at least 2 groove bodies are formed in the outer conical surface of the collet, the groove bodies are communicated with the bar placing through hole, the outer vertical surface of the collet and one end with larger cross section area, one end with smaller cross section area of the collet is inserted into the annular telescopic device, the precise locking round nut is positioned at one end of the annular telescopic device and fixedly connected with one end with smaller cross section area of the barrel clamp, the annular telescopic device is fixed on a base of a supporting block of the collet mechanism, and one end, far away from the precise locking round nut, of the annular telescopic device is contacted with a front limiting clamping seat of the collet mechanism; the power mechanism comprises a power piece and a transmission piece, the power mechanism is fixed on the base, and the power piece is contacted with the precise locking round nut through the transmission piece; the annular telescopic device comprises a disc spring seat, a spring pressing plate and an elastic force adjusting screw, wherein the disc spring seat and the spring pressing plate are of annular structures, the disc spring seat is provided with a collet placing inner cone through hole, the collet is inserted into the collet placing inner cone through hole of the disc spring seat, one end of the spring is fixed on the disc spring seat through the elastic force adjusting screw, the other end of the spring is connected with the spring pressing plate, and the precise locking round nut is positioned on one side of the annular telescopic device with the spring pressing plate; the power mechanism is selected from one of a cylinder mechanism, an oil cylinder mechanism, a screw rod mechanism and a linear motor mechanism.
2. The automatic bar clamping chuck device according to claim 1, wherein the power mechanism is a cylinder mechanism, the power piece is a cylinder, the transmission piece comprises a linear bearing, a push rod, a buffer spring and a pressing block, one end of the push rod is arranged on the cylinder, the other end of the push rod is connected with one end of the linear bearing through the buffer spring, and the other end of the linear bearing is contacted with the precision locking round nut through the pressing block.
3. The automatic bar clamping chuck device according to claim 1, wherein the chuck mechanism supporting block base is a chuck mechanism supporting V-block base, and the chuck mechanism supporting V-block base is a V-block.
4. The automatic bar clamping chuck device according to claim 1, wherein spring mounting holes are formed in the disc spring seat and the spring pressing plate, and the springs are fixed on the disc spring seat and the spring pressing plate through the spring mounting holes.
5. The automatic bar clamping chuck device according to claim 1, wherein the end with the smaller collet cross-sectional area is provided with a thread, and the end with the smaller collet cross-sectional area is locked and fixed with a precision locking round nut through the thread.
6. The automatic bar clamping chuck device according to claim 1, wherein the collet chuck is made of alloy steel, and the Rockwell hardness of the material is greater than 40 degrees.
7. The automatic bar clamping chuck device according to claim 1, wherein a pulling rod is further arranged on the disc spring seat.
8. A method of clamping a bar stock automated clamping chuck device as claimed in any one of claims 1 to 7 comprising the steps of:
a) Inserting the bar stock into the collet chuck bar stock placement hole;
b) Inserting the end with the smaller cross section of the collet into the annular telescopic device, and locking the end with the smaller cross section of the collet by using a precise locking round nut;
c) The annular telescopic device is stretched, the outer conical surface of the collet is compressed by the annular telescopic device, the whole collet is pressed and deformed, and the bar placing hole is deformed, so that the bar is clamped;
d) Placing the chuck mechanism clamped with the bar stock on a chuck mechanism supporting block base, and clamping one end far away from the precise locking round nut on a front limiting clamping seat of the chuck mechanism;
e) The power piece pushes the transmission piece to move, pressure is applied to one end of the chuck mechanism, which is provided with the precise locking round nut, so that the annular telescopic device is compressed under the action of the transmission piece and the front limiting clamping seat of the chuck mechanism, one end of the collet with larger sectional area extends out of the annular telescopic device, the pretightening force of the annular telescopic device on the collet is reduced, the collet is gradually restored to the original state, and the bar placing hole on the collet is restored from deformation, so that the bar is loosened;
f) The power piece drives the transmission piece to retract, the transmission piece leaves the annular expansion joint, and the annular expansion joint starts to rebound; along with the increase of the length of the annular telescopic device, one end with a larger cross section area of the collet is sleeved into the annular telescopic device again, and the annular telescopic device applies pretightening force to the collet in the moving process through the wedge-shaped matching function of the outer conical surface of the collet and the inner conical surface of the annular telescopic device, so that the whole compression deformation is realized, a bar placing hole is formed, and bar is clamped;
g) The automatic clamping and loosening of the bar stock are realized by controlling the telescopic gas of the power piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811486650.6A CN109366355B (en) | 2018-12-06 | 2018-12-06 | Automatic bar clamping chuck device and clamping method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811486650.6A CN109366355B (en) | 2018-12-06 | 2018-12-06 | Automatic bar clamping chuck device and clamping method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN109366355A CN109366355A (en) | 2019-02-22 |
| CN109366355B true CN109366355B (en) | 2023-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811486650.6A Active CN109366355B (en) | 2018-12-06 | 2018-12-06 | Automatic bar clamping chuck device and clamping method thereof |
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| CN (1) | CN109366355B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113172446A (en) * | 2021-05-14 | 2021-07-27 | 优德精密工业（昆山）股份有限公司 | Clamping positioning jig and workpiece processing equipment |
| CN114054519A (en) * | 2021-11-30 | 2022-02-18 | 上海攀枝花机械制造有限公司 | Self-locking clamping device for spring chuck |
| CN115430853B (en) * | 2022-10-28 | 2023-05-23 | 广东希普斯科技有限公司 | Inner-cooling type multifunctional ultrahigh precision chuck |
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| Publication number | Publication date |
|---|---|
| CN109366355A (en) | 2019-02-22 |
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