CN212285911U - Internal stay formula tight location frock clamp that expands - Google Patents
Internal stay formula tight location frock clamp that expands Download PDFInfo
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- CN212285911U CN212285911U CN202020553148.9U CN202020553148U CN212285911U CN 212285911 U CN212285911 U CN 212285911U CN 202020553148 U CN202020553148 U CN 202020553148U CN 212285911 U CN212285911 U CN 212285911U
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- pressure head
- screw
- core
- work piece
- elastic claw
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Abstract
The utility model provides an internal stay formula tight location frock clamp that expands, including anchor clamps bottom plate, work piece locating plate, decide core, first screw, pressure head and second screw, the work piece locating plate is installed on the anchor clamps bottom plate, the lower extreme of deciding the core is through first mounting screw on the anchor clamps bottom plate, the upper end in the deciding core upwards extends there is the elastic claw, the pressure head can insert in the elastic claw, the lower extreme of second screw passes the pressure head can with decide core threaded connection, the second screw can drive the pressure head and be elevating movement, the pressure head can drive the elastic claw outwards open or inwards shrink. The utility model discloses simple structure not only realizes the fixed of two directions through pressure head and elastic claw to the work piece moreover to make the fixed of work piece more firm.
Description
Technical Field
The utility model relates to a hardware numerical control machine tool machining field, in particular to internal stay formula location frock clamp that expands.
Background
The main technical problems in the prior art for machining sleeve parts are how to ensure the mutual position precision between main machining surfaces (inner holes and outer circles) of the sleeve parts, and the machining precision and surface roughness requirements of the inner holes. Especially, when the sleeve part with thin wall and deep hole is processed on the surface, because the sleeve part is easy to deform after being stressed, and the rigidity and the chip removal and heat dissipation conditions of the deep hole cutter are poor, the deep hole processing of the sleeve part often becomes the technical key of the processing of the sleeve part, and the tool clamp of the common sleeve part in the prior art has a complex structure and is difficult to clamp the sleeve part.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a simple structure, sleeve part's that can be firm tight location frock clamp that expands of interior stay formula.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides an internal stay formula tight location frock clamp that expands, includes anchor clamps bottom plate, work piece locating plate, decides core, first screw, pressure head and second screw, work piece locating plate installs on the anchor clamps bottom plate, the lower extreme of deciding the core is through first mounting screw on the anchor clamps bottom plate, the upper end in the core upwards extends there is the elasticity claw, the pressure head can insert in the elasticity claw, the lower extreme of second screw passes the pressure head can with decide core threaded connection, the second screw can drive the pressure head and be elevating movement, the pressure head can drive the elasticity claw outwards open or inwards shrink.
Furthermore, a positioning groove for positioning the fixed core is further formed in the bottom plate of the clamp.
Furthermore, a positioning hole for positioning the workpiece is arranged on the workpiece positioning plate.
Further, be provided with the circular arc portion on the pressure head, the elastic claw corresponds the circular arc portion is provided with the inner inclined plane, the pressure head passes through the circular arc portion can extrude the inner inclined plane of elastic claw for the elastic claw outwards opens.
The utility model has the advantages that:
the utility model discloses during the clamping, only need embolia the work piece on the core surely, and support and lean on the anchor clamps bottom plate after passing the lower extreme of work piece locating plate, then rotatory second screw, the second screw drives the pressure head downstream, can drive the elastic claw outwards when the pressure head downstream, the arc portion of pressure head can extrude the interior inclined plane of the elastic claw of core surely, the elastic claw can produce the power of two directions at the deformation in-process, the power of a horizontal outside extrusion work piece inner wall, a downwards, make the power of work piece subsides flat anchor clamps bottom plate, with work piece locking back, can process the work piece, the utility model discloses not only simple structure realizes fixing of two directions through pressure head and elastic claw to the work piece moreover, thereby make the fixed of work piece more firm.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
fig. 2 is a top view of the present invention;
FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;
fig. 4 is a partially enlarged schematic view at B of fig. 3.
Detailed Description
The invention is further explained below with reference to the drawings:
as shown in fig. 1 to 4, an internal-supporting type expansion positioning tool clamp includes a clamp base plate 1, a workpiece positioning plate 2, and a plurality of clamp assemblies, where the clamp assemblies are arranged on the clamp base plate 1 in a rectangular array, the clamp assemblies may be provided in plurality, each clamp assembly includes a fixed core 31, a first screw 32, a pressing head 33, and a second screw 34, the workpiece positioning plate 2 is mounted on the clamp base plate 1 through the screws, a lower end of the fixed core 31 is mounted on the clamp base plate 1 through the first screw 32, an upper end of the inside of the fixed core 31 extends upwards to form an elastic claw 311, the pressing head 33 may be inserted into the elastic claw 311, a lower end of the second screw 34 passes through the pressing head 33 and may be in threaded connection with an inner wall of the fixed core 31, the second screw 34 may drive the pressing head 33 to perform a lifting motion, and the pressing head 33 may drive the elastic claw 311 to expand outwards or contract inwards.
Furthermore, the fixture base plate 1 is further provided with a positioning groove 11 and a fixed core positioning hole 12 for positioning the fixed core 31, the lower end of the fixed core 31 is inserted into the fixed core positioning hole 12, and the middle step of the fixed core 31 is matched with the positioning groove 11 for positioning. The positioning grooves 11 and the core fixing positioning holes 12 are arranged, so that the core fixing 31 is more firmly fixed on the clamp bottom plate 1.
Further, the workpiece positioning plate 2 is provided with a positioning hole 21 for positioning the workpiece 4.
Further, an arc portion is arranged on the pressure head 33, an inner inclined surface is arranged on the elastic claw 311 corresponding to the arc portion, and the pressure head 33 can extrude the inner inclined surface of the elastic claw 311 through the arc portion, so that the elastic claw 311 is opened outwards.
The working principle is as follows:
the utility model discloses during the clamping, only need embolia on the fixed core 31 with work piece 4, and pass work piece 4's lower extreme and lean on anchor clamps bottom plate 1 behind the 2, then rotatory second screw 34, second screw 34 drives pressure head 33 downstream, can drive elastic claw 311 outwards open when pressure head 33 downstream, the circular arc portion of pressure head 33 can extrude the inner inclined plane of elastic claw 311 of fixed core 31, elastic claw 311 can produce the power of two directions at the deformation in-process, the power of a horizontal outside extrusion work piece 4 inner wall, one is downward, make work piece 4 paste flat anchor clamps bottom plate 1's power, with work piece 4 locking back, can process work piece 4, the utility model discloses not only simple structure, and realize the fixed of two directions to work piece 4 through pressure head 33 and elastic claw 311, thereby make the fixed of work piece more firm.
The above description is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are all within the scope of the technical solution of the present invention.
Claims (4)
1. The utility model provides an internal stay formula location frock clamp that expands which characterized in that: including anchor clamps bottom plate, work piece locating plate, decide core, first screw, pressure head and second screw, the work piece locating plate is installed on the anchor clamps bottom plate, the lower extreme of deciding the core is through first mounting screw on the anchor clamps bottom plate, the upper end in the core upwards extends there is the elasticity claw, the pressure head can be inserted in the elasticity claw, the lower extreme of second screw passes the pressure head can with decide core threaded connection, the second screw can drive the pressure head and be elevating movement, the pressure head can drive the elasticity claw outwards open or inwards shrink.
2. The internal-supporting type expansion positioning tool clamp according to claim 1, characterized in that: and the bottom plate of the clamp is also provided with a positioning groove for positioning the fixed core.
3. The internal-supporting type expansion positioning tool clamp according to claim 1, characterized in that: and the workpiece positioning plate is provided with a positioning hole for positioning a workpiece.
4. The internal-supporting type expansion positioning tool clamp according to claim 1, characterized in that: the pressure head is provided with an arc portion, the elastic claw corresponds to the arc portion and is provided with an inner inclined plane, and the pressure head can extrude the inner inclined plane of the elastic claw through the arc portion, so that the elastic claw is outwards opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020553148.9U CN212285911U (en) | 2020-04-15 | 2020-04-15 | Internal stay formula tight location frock clamp that expands |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020553148.9U CN212285911U (en) | 2020-04-15 | 2020-04-15 | Internal stay formula tight location frock clamp that expands |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212285911U true CN212285911U (en) | 2021-01-05 |
Family
ID=73974927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020553148.9U Active CN212285911U (en) | 2020-04-15 | 2020-04-15 | Internal stay formula tight location frock clamp that expands |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212285911U (en) |
-
2020
- 2020-04-15 CN CN202020553148.9U patent/CN212285911U/en active Active
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