CN216326574U - Axial symmetrical key groove processing and positioning device - Google Patents
Axial symmetrical key groove processing and positioning device Download PDFInfo
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- CN216326574U CN216326574U CN202121021596.5U CN202121021596U CN216326574U CN 216326574 U CN216326574 U CN 216326574U CN 202121021596 U CN202121021596 U CN 202121021596U CN 216326574 U CN216326574 U CN 216326574U
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- shoulder hole
- keyway processing
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Abstract
The utility model discloses a shaft type symmetrical key groove processing and positioning device, which comprises a base and is characterized in that: the base center is provided with the shoulder hole that at least one end runs through along the axial, base bottom surface center is connected with the mount table be provided with elastic construction in the shoulder hole, the fixed other end in elastic construction one end is connected with the fitting pin, the fitting pin is followed the other end of base is stretched out in by the shoulder hole, just the fitting pin is located part in the shoulder hole be provided with the spacing annular boss that the step face of shoulder hole offseted. By adopting the positioning device of the embodiment, the processing efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of tools, in particular to a keyway processing and positioning device.
Background
When machining axisymmetrical keyways on a machine tool, a mechanical index plate device is usually used to assist in machining parts to ensure the symmetry of the keyways. However, the use of such indexing devices is complicated, inefficient and generally not conducive to mass production.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a non-dividing plate axial symmetric key groove processing positioning device which is high in efficiency and simple in structure.
In order to achieve the above object, the present invention is configured such that: the utility model provides an axial symmetry keyway processing positioner, includes the base, its characterized in that: the base center is provided with the shoulder hole that at least one end runs through along the axial, base bottom surface center is connected with the mount table be provided with elastic construction in the shoulder hole, the fixed other end in elastic construction one end is connected with the fitting pin, the fitting pin is followed the other end of base is stretched out in by the shoulder hole, just the fitting pin is located part in the shoulder hole be provided with the spacing annular boss that the step face of shoulder hole offseted. By adopting the shaft-type symmetrical key groove processing and positioning device in the mode, in the processing process, the key groove on one side is processed firstly, the workpiece rotates after the processing is finished, the head of the locking pin is inserted into the key groove to prevent the workpiece from rotating to realize the positioning after the key groove rotates by 180 degrees in the rotating process, and at the moment, the key groove on the other side of the workpiece can be processed, so that the working efficiency is improved.
Preferably, the two ends of the stepped hole axially penetrate through the base, and the mounting platform is locked on the bottom surface of the base.
For further improvement of reliability, one end of the mounting platform is a cylinder which can stretch into the stepped hole, the other end of the mounting platform is a positioning column used for fixing, an annular mounting boss is arranged between the cylinder and the positioning column, and the annular mounting boss and the first stepped surface of the stepped hole are locked by screws.
In order to further realize installation, the positioning column is a special-shaped cylinder with a left tangent plane and a right tangent plane, and the distance from the left tangent plane to the axis of the special-shaped cylinder is different from the distance from the right tangent plane to the axis of the special-shaped cylinder. Through the design of dysmorphism cylinder, can with the reference column inserts and realizes the installation to positioner in lacking the hole in the dysmorphism on the workstation, avoids positioner to take place to rotate in the course of the work, and lacks the cooperation in hole through dysmorphism cylinder and dysmorphism, need not to adopt other connecting elements to connect, and positioner's of being convenient for installation and dismantlement have improved work efficiency.
Preferably, the elastic structure includes a screw threadedly engaged with the stepped hole, and a spring having one end mounted on the screw.
Preferably, the other end of the spring is connected with the locking pin.
Furthermore, one end of the spring is abutted against the end face of the screw, the end face of the limiting annular boss of the locking pin is abutted against the second stepped face of the stepped hole, the other end of the locking pin, which is located on the limiting annular boss, is provided with an extending portion, and the spring is sleeved on the extending portion and is abutted against the other end face of the limiting annular boss.
In order to further realize the installation reliability of the positioning device, the bottom surface of the base is provided with a flange plate, and two ends of the flange plate are provided with U-shaped grooves.
Preferably, the outer wall of the base at the upper part of the flange plate has an upward and inward-tapered shape.
Has the advantages that:
the shaft-type symmetrical key groove machining positioning device does not adopt an index plate, realizes positioning of a workpiece subjected to key groove machining on one side through the locking pin capable of axially and linearly moving, and facilitates the machining of the key groove on the other side of the workpiece by a cutter. The key groove machining quality is guaranteed, efficient batch production can be achieved, and qualified parts are machined in batches by using the symmetry principle of a special rotation angle (180 degrees).
In addition, the positioning device can be more conveniently installed on the table board by the arrangement mode of the positioning column of the installation table of the positioning tool and the U-shaped groove designed on the flange plate, so that the use of a connecting piece is avoided, the positioning effect is achieved, and the quick installation and the quick disassembly are convenient.
Drawings
FIG. 1 is a top view of an axially symmetric keyway processing fixture according to an embodiment;
fig. 2 is a sectional view a-a of fig. 1.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings, but the present invention is not limited to these embodiments, and any modifications or substitutions in the basic spirit of the embodiments will still fall within the scope of the present invention as claimed in the claims.
Example (b): as shown in the drawings, the present embodiment provides an axial symmetric keyway processing and positioning device, which includes a base 1, where the base is a revolving body. The center of the base is provided with a stepped hole 2 with at least one end penetrating through along the axial direction. In this embodiment, the stepped hole has two ends penetrating axially. And a mounting table 3 is installed at a central stepped hole of the bottom surface of the base, an elastic structure is arranged in the stepped hole, one end of the elastic structure is fixed, the other end of the elastic structure is connected with a locking pin 4, the locking pin extends out of the other end of the base from the stepped hole, and a limiting annular boss 5 which is abutted to a stepped surface of the stepped hole is arranged on the part of the locking pin which is positioned in the stepped hole.
Specifically, the method comprises the following steps: the mounting table 3 is locked on the bottom surface of the base, one end of the mounting table can extend into the cylinder 31 in the stepped hole, the other end of the mounting table is a positioning column 32 used for fixing, an annular mounting boss 33 is arranged between the cylinder and the positioning column, and the annular mounting boss and the first stepped surface 21 of the stepped hole 2 are locked by screws 6.
The positioning column is a special-shaped cylinder with a left tangent plane and a right tangent plane, and the distance from the left tangent plane to the axis of the special-shaped cylinder is different from the distance from the right tangent plane to the axis of the special-shaped cylinder. In this embodiment, the distance from the left tangent plane to the axis of the special-shaped cylinder is 9mm, and the distance from the right tangent plane to the axis of the special-shaped cylinder is 7 mm.
In addition, the elastic structure comprises a stud 7 which is positioned in the stepped hole and is in threaded connection with the inner wall of the stepped hole, and a spring 8 of which one end is installed on the screw. Spring one end with the screw terminal surface offsets, the terminal surface of the spacing annular boss of fitting pin with the second step face of shoulder hole offsets 22, the other end that is located the spacing annular boss of fitting pin has the extension, the spring housing is established on the extension and with another terminal surface of spacing annular boss offsets.
In another embodiment of this embodiment, the bottom surface of the base is provided with a flange 9, and two ends of the flange are provided with U-shaped grooves 10. The outer wall of the base at the upper part of the flange plate is provided with an upward and inward-retracted slope.
By adopting the axial symmetric key groove processing positioning device of the embodiment, before processing, through the design of the special-shaped cylinder, the positioning column can be inserted into the special-shaped hole on the workbench to install the positioning device, so that the positioning device is prevented from rotating in the working process, and the positioning point on the workbench can be clamped into the U-shaped groove arranged on the flange plate. Through the cooperation of dysmorphism cylinder and the hole that lacks of dysmorphism to and the cooperation of U-shaped groove and setpoint, will fix a position the frock and vertically installed on table surface. The positioning tool is locked on the workbench without other connecting parts, so that the positioning device is convenient to mount and dismount, and the working efficiency is improved.
In the machining process, the workpiece is positioned above the locking pin, and the axis of the workpiece is perpendicular to the axis of the locking pin. Firstly, the key groove on one side of the workpiece is machined, the workpiece rotates after the machining is finished, the key groove can be inserted by the head of the locking pin to prevent the rotation of the workpiece from realizing the positioning after rotating for 180 degrees in the rotating process, and the key groove on the other side of the workpiece can be machined at the moment, so that the working efficiency is improved.
The axial symmetric keyway processing positioning device does not adopt an index plate, realizes positioning of a workpiece subjected to keyway processing on one side through the locking pin capable of axially and linearly moving, and facilitates processing of a keyway on the other side of the workpiece by a cutter. The key groove machining quality is guaranteed, efficient batch production can be achieved, and qualified parts are machined in batches by using the symmetry principle of a special rotation angle (180 degrees).
Claims (9)
1. The utility model provides an axial symmetry keyway processing positioner, includes the base, its characterized in that: the base center is provided with the shoulder hole that at least one end runs through along the axial, base bottom surface center is connected with the mount table be provided with elastic construction in the shoulder hole, the fixed other end in elastic construction one end is connected with the fitting pin, the fitting pin is followed the other end of base is stretched out in by the shoulder hole, just the fitting pin is located part in the shoulder hole be provided with the spacing annular boss that the step face of shoulder hole offseted.
2. The axisymmetric keyway processing fixture of claim 1, wherein: the ladder hole is axially penetrated through at two ends, and the mounting table is locked on the bottom surface of the base.
3. The axisymmetric keyway processing fixture of claim 2, wherein: the mounting table is characterized in that one end of the mounting table can stretch into the cylinder in the stepped hole, the other end of the mounting table is a positioning column used for fixing, an annular mounting boss is arranged between the cylinder and the positioning column, and the annular mounting boss and the first stepped surface of the stepped hole are locked by screws.
4. The axisymmetric keyway processing fixture of claim 3, wherein: the positioning column is a special-shaped cylinder with a left tangent plane and a right tangent plane, and the distance from the left tangent plane to the axis of the special-shaped cylinder is different from the distance from the right tangent plane to the axis of the special-shaped cylinder.
5. The axisymmetric keyway processing fixture of claims 1, 2, 3, or 4, wherein: the elastic structure comprises a screw in threaded connection with the stepped hole and a spring with one end mounted on the screw.
6. The axisymmetric keyway processing fixture of claim 5, wherein: the other end of the spring is connected with the locking pin.
7. The axisymmetric keyway processing fixture of claim 6, wherein: spring one end with the screw terminal surface offsets, the terminal surface of the spacing annular boss of fitting pin with the second step face of shoulder hole offsets, the other end that is located the spacing annular boss of fitting pin has the extension, the spring housing is established on the extension and with another terminal surface of spacing annular boss offsets.
8. The axisymmetric keyway processing fixture of claim 7, wherein: the bottom surface of base is provided with the ring flange, the both ends of ring flange set up the U-shaped groove.
9. The axisymmetric keyway processing fixture of claim 8, wherein: the outer wall of the base at the upper part of the flange plate is provided with an upward and inward-retracted slope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121021596.5U CN216326574U (en) | 2021-05-13 | 2021-05-13 | Axial symmetrical key groove processing and positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121021596.5U CN216326574U (en) | 2021-05-13 | 2021-05-13 | Axial symmetrical key groove processing and positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216326574U true CN216326574U (en) | 2022-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121021596.5U Active CN216326574U (en) | 2021-05-13 | 2021-05-13 | Axial symmetrical key groove processing and positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216326574U (en) |
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2021
- 2021-05-13 CN CN202121021596.5U patent/CN216326574U/en active Active
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