CN213857124U - Positioning and clamping device - Google Patents
Positioning and clamping device Download PDFInfo
- Publication number
- CN213857124U CN213857124U CN202022456414.9U CN202022456414U CN213857124U CN 213857124 U CN213857124 U CN 213857124U CN 202022456414 U CN202022456414 U CN 202022456414U CN 213857124 U CN213857124 U CN 213857124U
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- China
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- bottom plate
- shifting block
- positioning
- clamping
- pin shaft
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Abstract
A positioning and clamping device consists of a bottom plate, pre-positioning clamping jaws, a shifting block, a fastening bolt, a pin shaft, a clamping jaw and compression springs, wherein 6 compression springs are arranged in counter bores of the bottom plate, and 3 pre-positioning clamping jaws are arranged in grooves of the bottom plate and are fastened by screws; the lower end of the shifting block is matched with a hole on the bottom plate, the protruding parts of the 3 clamping claws extend into the shifting block groove and are arranged in the groove of the bottom plate bracket, the pins are inserted, and the gasket is cushioned and then fastened by fastening bolts. During clamping, a workpiece is supported on the plane of the pre-positioning clamping jaw, the outer circle is preliminarily positioned, the fastening bolt is screwed down, and the shifting block moves downwards to enable the clamping jaw to rotate around the pin shaft to clamp the workpiece; and after the machining is finished, the fastening bolt is loosened, the shifting block is moved upwards by the compression spring, the clamping jaw rotates around the pin shaft, and the machined part is loosened.
Description
Technical Field
The invention relates to the field of machine manufacturing, in particular to the technical field of metal cutting.
Background
The three-jaw chuck is a main fixture for clamping circular workpieces, but when the diameter of a workpiece is large, the three-jaw chuck is very high in price and overlarge in size, and a proper three-jaw chuck is not available, so that a positioning fixture for the circular workpieces, which is simple in structure and convenient to manufacture, needs to be designed and manufactured.
Disclosure of Invention
The invention relates to a positioning clamp for a round workpiece, which has a simple structure and is convenient to manufacture.
A positioning and clamping device consists of a bottom plate, pre-positioning clamping jaws, a shifting block, a fastening bolt, a pin shaft, a clamping jaw and compression springs, and is characterized in that 6 compression springs are arranged in counter bores of the bottom plate, and 3 pre-positioning clamping jaws are arranged in grooves of the bottom plate and are fastened by screws; the lower end of the shifting block is matched with a hole on the bottom plate, the protruding parts of the 3 clamping claws extend into the shifting block groove and are arranged in the groove of the bottom plate bracket, the pins are inserted, and the gasket is cushioned and then fastened by fastening bolts.
Drawings
FIG. 1 is a front view of the present invention
In the figure, a base plate (1), a pre-positioning clamping jaw (2) is fastened on a base through a screw, a shifting block (3) is provided with a circumferential groove, a fastening bolt (4), a pin shaft (5), a clamping jaw (6) and a compression spring (7);
FIG. 2 is a front view of the base plate (1) of the present invention
In the figure, 3 grooves (1-1) for installing pre-positioning clamping jaws (2) are uniformly distributed on a bottom plate (1), 3 groups of brackets (1-2) for installing clamping jaws (6) are uniformly distributed, holes in the brackets are used for installing pin shafts, 6 counter bores (1-3) for installing springs are arranged, and screw holes for fastening screws are arranged in the middles of the counter bores;
FIG. 3 top view of the bottom plate (1) of the present invention
In the figure, 3 grooves (1-1) for installing pre-positioning clamping jaws (2) are uniformly distributed on a bottom plate (1), 3 groups of brackets (1-2) for installing clamping jaws (6) are uniformly distributed, holes in the brackets are used for installing pin shafts, 6 counter bores (1-3) for installing springs are arranged, and screw holes for fastening screws are arranged in the middles of the counter bores;
Detailed Description
A positioning and clamping device consists of a bottom plate, pre-positioning clamping jaws, a shifting block, a fastening bolt, a pin shaft, a clamping jaw and compression springs, wherein 6 compression springs are arranged in counter bores of the bottom plate, and 3 pre-positioning clamping jaws are arranged in grooves of the bottom plate and are fastened by screws; the lower end of the shifting block is matched with a hole on the bottom plate, the protruding parts of the 3 clamping claws extend into the shifting block groove and are arranged in the groove of the bottom plate bracket, the pins are inserted, and the gasket is cushioned and then fastened by fastening bolts.
During clamping, a workpiece is supported on the plane of the pre-positioning clamping jaw, the outer circle is preliminarily positioned, the fastening bolt is screwed down, and the shifting block moves downwards to enable the clamping jaw to rotate around the pin shaft to clamp the workpiece; and after the machining is finished, the fastening bolt is loosened, the shifting block is moved upwards by the compression spring, the clamping jaw rotates around the pin shaft, and the machined part is loosened.
Claims (1)
1. A positioning and clamping device consists of a bottom plate, pre-positioning clamping jaws, a shifting block, a fastening bolt, a pin shaft, a clamping jaw and compression springs, and is characterized in that 6 compression springs are arranged in counter bores of the bottom plate, and 3 pre-positioning clamping jaws are arranged in grooves of the bottom plate and are fastened by screws; the lower end of the shifting block is matched with a hole on the bottom plate, the protruding parts of the 3 clamping claws extend into the shifting block groove and are arranged in the groove of the bottom plate bracket, the pins are inserted, and the gasket is cushioned and then fastened by fastening bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022456414.9U CN213857124U (en) | 2020-10-26 | 2020-10-26 | Positioning and clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022456414.9U CN213857124U (en) | 2020-10-26 | 2020-10-26 | Positioning and clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213857124U true CN213857124U (en) | 2021-08-03 |
Family
ID=77075903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022456414.9U Active CN213857124U (en) | 2020-10-26 | 2020-10-26 | Positioning and clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213857124U (en) |
-
2020
- 2020-10-26 CN CN202022456414.9U patent/CN213857124U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |