CN210499288U - Workpiece centering and clamping device - Google Patents
Workpiece centering and clamping device Download PDFInfo
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- CN210499288U CN210499288U CN201921084108.8U CN201921084108U CN210499288U CN 210499288 U CN210499288 U CN 210499288U CN 201921084108 U CN201921084108 U CN 201921084108U CN 210499288 U CN210499288 U CN 210499288U
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- clamping jaw
- positioning
- location
- centering
- inner core
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Abstract
The utility model provides a work piece centering clamping device, include the base, be located positioning seat on the base, be equipped with in the base and promote the piece, be equipped with the location inner core in the positioning seat, it fixes a position the clamping jaw to be equipped with three at least groups on the promotion piece to the heart, pass and stretch to the heart location clamping jaw the location inner core, the outside cover in location inner core has the elasticity cover that rises, the tensioning behind the heart location clamping jaw activity the elasticity cover that rises, this device promotes the back through the ejector pin, can promote the activity clamping jaw ejecting slightly earlier, can push up the elasticity cover that rises, even tensioning work piece inner wall for work piece center centering, ejector pin stroke continue to increase the back, can promote the activity clamping jaw and compress tightly the work piece inner ring, realize the location.
Description
Technical Field
The utility model relates to a machining equipment field especially relates to work piece centering clamping device.
Background
The product structure shown in fig. 1 is an annular structure, the middle inner ring is provided with a convex part, and the workpiece is made of a thin material with low hardness, so that the circular shape is not correct, the workpiece is difficult to center when being positioned, the processing precision is reduced, and the workpiece is difficult to position due to easy deformation.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem, the utility model provides a work piece centering clamping device, include the base, be located positioning seat on the base, be equipped with in the base and promote the piece, be equipped with the location inner core in the positioning seat, it fixes a position the clamping jaw to be equipped with three at least groups on the promotion piece, fix a position the clamping jaw to the heart and pass and stretch out the location inner core, the outside cover of location inner core has the elasticity cover that rises, the tensioning behind the heart location clamping jaw activity elasticity cover that rises.
Preferably, the centering positioning clamping jaw comprises a push rod connected to the pushing block, a fixed block connected to the base and a movable clamping jaw, the push rod is movably connected with the movable clamping jaw, the end part of the fixed block is connected with the movable clamping jaw through a hinge, and the push rod pushes out the movable clamping jaw to move towards the elastic expansion sleeve along the hinge.
Preferably, the movable clamping jaw comprises a positioning part and a vertical part vertically arranged on the positioning part, a clamping part is arranged at the end part of the vertical part, two through holes are formed in the positioning part, the ejector rod is connected to the through hole at the lower part through a shaft pin, and the clamping part extends out of the upper part of the positioning inner core.
Preferably, the positioning inner core comprises a fixing column, a positioning disc is arranged on the fixing column, a slot corresponding to the centering positioning clamping jaw is arranged on the positioning disc, and the slot points to the circumference of the positioning disc from the circle center of the positioning disc.
Preferably, the elastic expansion sleeve comprises a circular ring body, a plurality of notches are arranged on the circular ring body, and the circular ring body is sleeved outside the grooves.
Preferably, the center of the pushing block is provided with an internal thread joint.
The utility model provides a work piece centering clamping device has following beneficial effect: after the ejector rod pushes the workpiece, the movable clamping jaw can be pushed to be slightly ejected out, the elastic expansion sleeve can be pushed tightly, the inner wall of the workpiece can be tensioned uniformly, the center of the workpiece is centered, and after the stroke of the ejector rod continues to be increased, the movable clamping jaw can be pushed to compress the inner ring of the workpiece, so that positioning is realized.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.
FIG. 1 is a schematic view of a thin-walled bowl-shaped workpiece of the prior art;
fig. 2 is a schematic perspective view of the present invention;
FIG. 3 is a schematic diagram of the present invention after positioning the product;
fig. 4 is a perspective view of the internal structure of the present invention;
fig. 5 is a perspective view of the internal structure of the present invention;
fig. 6 is a schematic view of the centering positioning clamping jaw of the present invention;
FIG. 7 is a schematic view of the action of the centering positioning clamping jaw of the present invention;
FIG. 8 is a schematic view of the action of the centering positioning clamping jaw of the present invention;
fig. 9 is a schematic view of the positioning core of the present invention;
wherein, 1, a base; 2. positioning seats; 3. a pushing block; 4. positioning; 5. an elastic expansion sleeve; 6. a top rod; 7. a fixed block; 8. a hinge; 9. a positioning part; 10. a vertical portion; 11. a fastening part; 12. a through hole; 13. a movable clamping jaw; 14. fixing a column; 15. positioning the tray body; 16. grooving; 17. female adapter.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 2-5, the utility model provides a workpiece centering clamping device, include base 1, be located positioning seat 2 on the base 1, be equipped with in the base 1 and promote piece 3, be equipped with 4 cores in the location in the positioning seat 2, it fixes a position the clamping jaw to promote to be equipped with three at least groups on 3, fix a position the clamping jaw to the heart and pass and stretch out 4 cores in the location, 4 outside covers of core have elasticity cover 5 that rises in the location, the tensioning after fixing a position the clamping jaw activity to the heart elasticity cover 5 that rises, specific theory:
as shown in fig. 7, the centering positioning clamping jaw comprises a push rod 6 connected to the pushing block 3, a fixed block 7 connected to the base 1, and a movable clamping jaw 13, wherein the pushing block 3 is provided with a square hole, the end of the push rod 6 is provided with a cutting groove and clamped in the square hole to realize fixation, the push rod 6 is movably connected with the movable clamping jaw 13, the end of the push rod 6 passes through a pin, the pin passes through the movable clamping jaw 13, the movable clamping jaw 13 can rotate at the end of the push rod 6, the end of the fixed block 7 is connected with the movable clamping jaw 13 through a hinge 8, the push rod 6 pushes out to drive the movable clamping jaw 13 to move towards the elastic expansion sleeve 5 along the hinge 8, the movable clamping jaw 13 comprises a positioning portion 9 and a vertical portion 10 vertically arranged on the positioning portion 9, the end of the vertical portion 10 is provided with a clamping portion 11, the ejector rod 6 is connected to the through hole 12 at the lower part through a shaft pin, the clamping part 11 extends out of the upper part of the positioning inner 4 core, and the working mode is as follows: by pushing the pushing block 3 and further pushing the ejector rod 6, after the ejector rod 6 pushes the movable clamping jaw 13, in an initial state, as shown in fig. 7, the ejector rod 6 is in a contracted state, when the ejector rod 6 is ejected to a state as shown in fig. 8, a chain of the hinge 8 is in a vertical state, and the movable clamping jaw 13 is also erected, and a vertical part 10 of the movable clamping jaw can be tightly pressed and attached to the inner wall of the elastic expansion sleeve 5, because of the three movable clamping jaws 13, one original can be determined, namely, a round workpiece outside the elastic expansion sleeve 5 is tightly stretched, the circle center of the round workpiece is centered, and when the ejector rod is continuously ejected, a clamping part 11 of the movable clamping jaw 13 extends to the upper part of the core 4 in the positioning to be pressed down, so that the inner.
The positioning inner 4 core comprises a fixing column 14, a positioning disc is arranged on the fixing column 14, an open groove 16 corresponding to the centering positioning clamping jaw is arranged on the positioning disc, the open groove 16 points to the circumference of the positioning disc from the circle center of the positioning disc, the open groove 16 is used for accommodating the movable clamping jaw 13, and an interval vacancy is formed in the side wall of the positioning column and used for accommodating the position of the fixing block 7.
As shown in fig. 3, the elastic expansion sleeve 5 includes a circular ring body, a plurality of notches are arranged on the circular ring body, the circular ring body is sleeved outside the open slot 16, the notches are uniformly arranged around the circular ring body, after the inside is received, the circular ring body can be expanded outwards, the outer wall is limited by the positioning seat 2, and a workpiece corresponding to the notch position of the opening can be tensioned to realize centering.
The center of the pushing block 3 is provided with an internal thread joint 17, the rear part of the pushing block is connected with a machine tool spindle, and the pushing block is used for pushing a moving block.
Various modifications to the embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The utility model provides a work piece centering clamping device, includes the base, is located positioning seat on the base, its characterized in that, be equipped with in the base and promote the piece, be equipped with the location inner core in the positioning seat, it is equipped with three at least group to heart location clamping jaws on the promotion piece, the heart location clamping jaw passes and stretches out the location inner core, the outside cover of location inner core has the elasticity cover that rises, tensioning behind the heart location clamping jaw activity the elasticity cover that rises.
2. The workpiece centering and clamping device as claimed in claim 1, wherein the centering and positioning clamping jaw comprises a push rod connected to the pushing block, a fixed block connected to the inside of the base, and a movable clamping jaw, the push rod is movably connected with the movable clamping jaw, the end part of the fixed block is connected with the movable clamping jaw through a hinge, and the push rod is ejected out to drive the movable clamping jaw to move towards the elastic expansion sleeve along the hinge.
3. The workpiece centering and clamping device as claimed in claim 2, wherein the movable clamping jaw comprises a positioning portion and a vertical portion vertically arranged on the positioning portion, a clamping portion is arranged at the end of the vertical portion, two through holes are arranged on the positioning portion, the ejector rod is connected to the through hole at the lower portion through a shaft pin, and the clamping portion extends out of the upper portion of the positioning inner core.
4. The workpiece centering and clamping device as claimed in claim 1, wherein the positioning inner core comprises a fixed column, a positioning disc is arranged on the fixed column, a slot corresponding to the centering and positioning clamping jaw is arranged on the positioning disc, and the slot points to the circumference of the positioning disc from the center of the positioning disc.
5. The workpiece centering and clamping device as claimed in claim 4, wherein said elastic expansion sleeve comprises a circular ring body, a plurality of notches are arranged on said circular ring body, and said circular ring body is sleeved outside said notches.
6. The workpiece centering and clamping device as claimed in claim 1, wherein said pushing block is provided with a female screw joint at the center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921084108.8U CN210499288U (en) | 2019-07-11 | 2019-07-11 | Workpiece centering and clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921084108.8U CN210499288U (en) | 2019-07-11 | 2019-07-11 | Workpiece centering and clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210499288U true CN210499288U (en) | 2020-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921084108.8U Active CN210499288U (en) | 2019-07-11 | 2019-07-11 | Workpiece centering and clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210499288U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112171543A (en) * | 2020-09-10 | 2021-01-05 | 南京信息职业技术学院 | Diameter-adjustable auxiliary tool for barrel machining |
| CN113021056A (en) * | 2021-03-15 | 2021-06-25 | 杨其建 | Motor-driven clamp |
-
2019
- 2019-07-11 CN CN201921084108.8U patent/CN210499288U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112171543A (en) * | 2020-09-10 | 2021-01-05 | 南京信息职业技术学院 | Diameter-adjustable auxiliary tool for barrel machining |
| CN112171543B (en) * | 2020-09-10 | 2022-05-03 | 南京信息职业技术学院 | Diameter-adjustable auxiliary tool for barrel machining |
| CN113021056A (en) * | 2021-03-15 | 2021-06-25 | 杨其建 | Motor-driven clamp |
| CN113021056B (en) * | 2021-03-15 | 2022-08-23 | 杨其建 | Motor-driven clamp |
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