CN212471157U - Elastic chuck axial positioning auxiliary device - Google Patents
Elastic chuck axial positioning auxiliary device Download PDFInfo
- Publication number
- CN212471157U CN212471157U CN202020726341.8U CN202020726341U CN212471157U CN 212471157 U CN212471157 U CN 212471157U CN 202020726341 U CN202020726341 U CN 202020726341U CN 212471157 U CN212471157 U CN 212471157U
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- erection column
- diameter
- axial
- column
- collet
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Abstract
The utility model relates to a collet relevant technical field specifically is a collet axial positioning auxiliary device, aims at solving the technical problem that partial collet can't satisfy axial positioning. The following technical scheme is adopted: including the erection column, the screw has been seted up to the terminal surface of the one end of erection column is coaxial, it is equipped with the locating lever to twist in the screw, it is equipped with lock nut to twist on the locating lever, the other end external diameter of erection column diminishes in order to form ladder axle column structure, the path axle section of erection column is equipped with O type circle from inside to outside in proper order along the axial, compression sleeve, gland nut, O type circle cover is established on the path axle section of erection column, compression sleeve clearance suit is on the path axle section of erection column, the outer tip part in the axial of the path axle section of erection column is equipped with the external screw thread, gland nut twists the dress in external screw thread department, compression sleeve, the external diameter of O type circle under gland nut and the natural state all is less than the external diameter of the big footpath axle section of erection column, the external diameter.
Description
Technical Field
The utility model relates to a collet relevant technical field specifically is a collet axial positioning auxiliary device.
Background
A collet, also known as a collet or collet, is a structure that is mounted on a machine tool for clamping a tool or workpiece. One type of collet is shown in fig. 3, and the inner cavity of the collet is a stepped hole structure, the stepped hole is composed of a large-diameter hole and a small-diameter hole, the stepped surface of the stepped hole is an inclined surface, and the small-diameter hole forms a clamping hole. The elastic chuck has no axial positioning function, and when the axial positioning requirement exists, the elastic chuck cannot meet the use requirement.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving the unable technical problem who satisfies axial positioning of part collet.
The utility model provides a technical scheme that its technical problem adopted is:
the elastic chuck axial positioning auxiliary device comprises an installation column inserted in a large-diameter hole of the elastic chuck, a screw hole is formed in the end face of one end of the installation column, the screw hole is coaxial with the positioning column and is provided with a positioning rod in a screwing mode, a locking nut is screwed on the positioning rod, the outer diameter of the other end of the installation column is reduced to enable the whole installation column to form a stepped shaft-shaped structure, an O-shaped ring and a pressing sleeve are sequentially arranged on a small-diameter shaft section of the installation column from inside to outside along the axial direction, the outer diameter of the O-shaped ring under the compression sleeve, the compression nut and the natural state is smaller than that of the large-diameter shaft section of the mounting column, and the outer diameter of the O-shaped ring after the O-shaped ring is compressed is larger than that of the large-diameter shaft section of the mounting column.
When in use, the method comprises the following steps:
1) adjusting the length of the positioning rod exposed out of the mounting column, and locking the positioning rod through a locking nut;
2) loosening the compression nut by using a spanner to ensure that the O-shaped ring is in an unstressed state, namely a natural state, in the axial direction;
3) placing the elastic chuck axial positioning auxiliary device into a large-diameter hole of the elastic chuck;
4) tightening the compression nut by using a spanner to compress the O-shaped ring and radially expand the O-shaped ring, and fixing the elastic chuck in a large-diameter hole of the elastic chuck in an axial positioning auxiliary way by using the elasticity of the O-shaped ring, wherein the outer end part of the positioning rod is an axial positioning surface;
5) measuring and determining the deviation between the position of the axial positioning surface and the position of the ideal positioning surface, and determining the axial deviation by trial cutting and measuring the axial dimension of the workpiece;
6) loosening the compression nut by using a spanner to ensure that the O-shaped ring is in an unstressed state in the axial direction;
7) taking down the elastic chuck axial positioning auxiliary device from the elastic chuck;
8) according to the actual deviation between the position of the axial positioning surface and the position of the ideal positioning surface, the length of the positioning rod exposed out of the mounting column is adjusted to meet the requirement of the axial positioning surface;
9) and putting the elastic chuck axial positioning auxiliary device into the elastic chuck, and screwing the compression nut by using a spanner to finish the relative fixation of the elastic chuck axial positioning auxiliary device and the elastic chuck.
The utility model has the advantages that:
the utility model provides a collet axial positioning auxiliary device on the basis that does not harm original collet structure, utilizes the compression elasticity of O type circle to realize axial positioning's function, simple structure, convenient operation, the practicality is strong.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic cross-sectional structure view of the collet axial positioning auxiliary device of the present invention;
fig. 2 is a schematic structural view of the elastic chuck axial positioning auxiliary device of the present invention after being assembled with the elastic chuck;
fig. 3 is a schematic structural view of a conventional collet.
In the figure: 1 ┄ collet; 2 ┄ mounting posts; 3 ┄ locating lever; 4 ┄ lock nut; 5 ┄ O-ring; 6 ┄ compressing the sleeve; 7 ┄ pressing the nut.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
Referring to fig. 1 to 3, the utility model discloses a collet axial positioning auxiliary device, include for the erection column 2 of cartridge in collet 1's major diameter hole, the screw has been seted up to the terminal surface of the one end of erection column 2, the screw is coaxial with the reference column and twist and be equipped with locating lever 3, twist on locating lever 3 and be equipped with lock nut 4, the other end external diameter of erection column 2 diminishes so that whole erection column 2 forms the step shaft column structure, the path shaft section of erection column 2 is equipped with O type circle 5 from inside to outside along the axial in proper order, compression sleeve 6, gland nut 7, O type circle 5 cover is established on the path shaft section of erection column 2, adopt interference or clearance or transition fit all can, compression sleeve 6 clearance suit is on the path shaft section of erection column 2, the axial outer tip part of the path shaft section of erection column 2 is equipped with the external screw thread, gland nut 7 twists the dress in external screw thread department, compression sleeve, The outer diameters of the compression nut 7 and the O-shaped ring 5 in a natural state are smaller than the outer diameter of the large-diameter shaft section of the mounting column 2, and the outer diameter of the O-shaped ring 5 after being compressed is larger than the outer diameter of the large-diameter shaft section of the mounting column 2.
When in use, the method comprises the following steps:
1) the length of the positioning rod 3 exposed out of the mounting column 2 is adjusted and locked by a locking nut 4;
2) loosening the compression nut 7 by using a wrench to enable the O-shaped ring 5 to be in an unstressed state, namely a natural state, in the axial direction;
3) placing the elastic chuck axial positioning auxiliary device into a large-diameter hole of the elastic chuck 1;
4) a spanner is used for screwing a compression nut 7 to enable an O-shaped ring 5 to be compressed and radially expanded, the elastic chuck 1 is axially positioned and fixed in a large-diameter hole of the elastic chuck 1 in an auxiliary mode by utilizing the elasticity of the O-shaped ring 5, and the outer end part of the positioning rod 3 is an axial positioning surface;
5) measuring and determining the deviation between the position of the axial positioning surface and the position of the ideal positioning surface, and determining the axial deviation by trial cutting and measuring the axial dimension of the workpiece;
6) loosening the compression nut 7 by using a wrench to enable the O-shaped ring 5 to be in an axially unstressed state;
7) taking down the elastic chuck axial positioning auxiliary device from the elastic chuck 1;
8) according to the actual deviation between the position of the axial positioning surface and the position of the ideal positioning surface, the length of the positioning rod 3 exposed out of the mounting column 2 is adjusted to meet the requirement of the axial positioning surface;
9) and putting the elastic chuck axial positioning auxiliary device into the elastic chuck 1, and screwing the compression nut 7 by using a spanner to finish the relative fixation of the elastic chuck axial positioning auxiliary device and the elastic chuck 1.
As a further improvement of the above technical scheme, the diameter of the axial outer end portion of the small-diameter shaft section of the mounting column 2 is reduced so that the small-diameter shaft section also forms a stepped shaft-shaped structure, the axial outer end portion of the small-diameter shaft section is provided with an external thread, the O-ring 5 and the compression sleeve 6 are both sleeved on the axial inner side shaft section with the larger diameter of the small-diameter shaft section, and the outer diameter of the compression nut 7 is larger than the inner diameter of the compression sleeve 6. By means of the structure, the compression sleeve 6 is prevented from contacting with the external threads, the compression sleeve 6 is convenient and flexible to install and move, meanwhile, the compression sleeve 6 is prevented from damaging the external threads, and the service life of the structure is guaranteed.
The same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components; in the description of the present application, it is to be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the above terms may be understood by those skilled in the art according to specific situations.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (2)
1. Collet axial positioning auxiliary device, its characterized in that: including erection column (2) for cartridge in the big footpath of collet (1), the screw has been seted up to the terminal surface of the one end of erection column (2), the screw is coaxial with the reference column and twists and be equipped with locating lever (3), it is equipped with lock nut (4) to twist on locating lever (3), the other end external diameter of erection column (2) diminishes so that whole erection column (2) form the step shaft column structure, the path axle section of erection column (2) is followed the axial and is equipped with O type circle (5) from inside to outside in proper order, compression sleeve (6), gland nut (7), O type circle (5) cover is established on the path axle section of erection column (2), compression sleeve (6) clearance suit is on the path axle section of erection column (2), the axial outer tip part of the path axle section of erection column (2) is equipped with the external screw thread, gland nut (7) are twisted and are adorned in external screw thread department, gland sleeve (6), the external diameter of O type circle (5) under gland nut (7) and the natural state all is less than The outer diameter of the shaft section and the outer diameter of the O-shaped ring (5) after being pressed are larger than the outer diameter of the large-diameter shaft section of the mounting column (2).
2. The collet axial positioning assistance device of claim 1, wherein: the diameter of the axial outer end part of the small-diameter shaft section of the mounting column (2) is reduced so that the small-diameter shaft section also forms a stepped shaft-shaped structure, an external thread is arranged on the axial outer end part of the small-diameter shaft section, the O-shaped ring (5) and the compression sleeve (6) are sleeved on the shaft section, on the axial inner side, with the larger diameter, of the small-diameter shaft section, and the outer diameter of the compression nut (7) is larger than the inner diameter of the compression sleeve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020726341.8U CN212471157U (en) | 2020-05-07 | 2020-05-07 | Elastic chuck axial positioning auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020726341.8U CN212471157U (en) | 2020-05-07 | 2020-05-07 | Elastic chuck axial positioning auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212471157U true CN212471157U (en) | 2021-02-05 |
Family
ID=74455259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020726341.8U Active CN212471157U (en) | 2020-05-07 | 2020-05-07 | Elastic chuck axial positioning auxiliary device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212471157U (en) |
-
2020
- 2020-05-07 CN CN202020726341.8U patent/CN212471157U/en active Active
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