CN212885119U - Internal expanding chuck - Google Patents
Internal expanding chuck Download PDFInfo
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- CN212885119U CN212885119U CN202021791190.0U CN202021791190U CN212885119U CN 212885119 U CN212885119 U CN 212885119U CN 202021791190 U CN202021791190 U CN 202021791190U CN 212885119 U CN212885119 U CN 212885119U
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- internal expanding
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Abstract
The application relates to an internal expanding chuck, which comprises a chuck body, wherein the chuck body comprises an installation part and an expansion part, the expansion part comprises expansion columns, the expansion columns are arranged at intervals around the central line of the installation part, the inner sides of the expansion columns are enclosed to form an avoiding channel, and the outer sides of the expansion columns are all provided with cambered surfaces; be provided with the butt pole in the installation department, the butt pole removes the expansion of drive expansion portion and then tensioning work piece, be provided with the restoring piece on the butt pole, the one end that the butt pole is close to the expansion portion is fixed with and prevents to process the piece and enter into the antidandruff post in the expansion portion from dodging the passageway, the lateral wall of antidandruff post week side with dodge the passageway and support tightly. This application helps preventing to process the piece from dodging the passageway entering and the card dies inboard at the expansion portion man-hour to lead to the centre of a circle of chuck expansion portion to take place the skew, promote the effect of machining precision.
Description
Technical Field
The application relates to the technical field of chucks, in particular to an internal expansion type chuck.
Background
Currently, the collet is referred to as a collet or collet. Is a cylindrical fixture used for being arranged on a milling machine and used for restraining a drill bit or a milling cutter. The fixing device is also used for fixing and reinforcing the part needing to be modified.
In the related art, a worker usually fixes a workpiece on the expansion portion of the chuck, then the expansion portion of the chuck expands and tensions the workpiece, and after the workpiece is fixed, the worker processes the workpiece again.
In view of the above-mentioned related art, the inventor believes that there is a defect that machining chips easily enter from the end of the expansion portion and are stuck inside the expansion portion, so that the center of the chuck expansion portion is shifted, and machining accuracy is affected.
SUMMERY OF THE UTILITY MODEL
The utility model provides an internal expanding chuck, which aims to improve the problem that machining chips easily enter from the end part of the expansion part and are clamped at the inner side of the expansion part, so that the center of a circle of the expansion part of the chuck deviates and the machining precision is affected.
The application provides an internal expanding chuck adopts following technical scheme:
an internal expanding chuck comprises a chuck body, wherein the chuck body comprises an installation part and an expansion part, the expansion part comprises expansion columns, the expansion columns are arranged at intervals around the central line of the installation part, the inner sides of the expansion columns are surrounded to form an avoiding channel, and the outer sides of the expansion columns are respectively provided with an arc surface; be provided with the butt pole in the installation department, the butt pole removes the expansion of drive expansion portion and then tensioning work piece, be provided with the restoring piece on the butt pole, the one end that the butt pole is close to the expansion portion is fixed with and prevents to process the piece and enter into the antidandruff post in the expansion portion from dodging the passageway, the lateral wall of antidandruff post week side with dodge the passageway and support tightly.
Through adopting above-mentioned technical scheme, in the application, the staff removes the expansion of drive expansion portion with the butt pole and then tensioning work piece, and the piece in dodging the passageway is clear away to the antidandruff post simultaneously, helps cleaing away the piece in the passageway on the one hand, and on the other hand helps preventing to process the piece and gets into and block and die in the expansion portion inboard from dodging the passageway when adding man-hour to lead to the centre of a circle of chuck expansion portion to take place the skew, promote the machining precision.
Preferably, a baffle is fixed at one end, away from the expansion part, of the abutting rod, the restoring piece is set to be a compression spring, the axis of the compression spring is coaxial with the axis of the abutting rod, one end of the compression spring abuts against the baffle, and the other end of the compression spring abuts against the inner side of the chuck body.
Through adopting above-mentioned technical scheme, through setting up the piece that replies into compression spring, compression spring supports tightly at baffle and chuck body inboard simultaneously, helps promoting the stability that the pole that connects replies.
Preferably, a baffle ring is coaxially fixed on the inner side of the chuck body, and one end of the baffle ring abuts against the baffle plate.
Through adopting above-mentioned technical scheme, block to connect the pole by keeping off the ring, help promoting on the one hand to connect the pole stability, on the other hand helps promoting to connect the work efficiency who pole.
Preferably, fins are arranged between any two adjacent expansion columns, and any fin is fixed with the chip removing column.
Through adopting above-mentioned technical scheme, the piece in space between arbitrary two adjacent expansion posts is cleared up by the fin, helps promoting the stability of expansion post expansion and shrink.
Preferably, a rubber pad is fixed to one end of the abutting rod away from the expansion part.
Through adopting above-mentioned technical scheme, keep away from the one end of expansion portion at the butt pole by the rubber pad setting, help promoting the life of butt pole.
Preferably, one end of the abutting rod contacting with the chuck body is provided with an inclined surface.
Through adopting above-mentioned technical scheme, set up to the inclined plane through the one end with the contact of butt joint pole and chuck body, help promoting the stability that the expansion of expansion portion on the chuck body.
Preferably, the outer wall of the expansion part is provided with a stress groove along the radial direction, and the stress groove is positioned at the joint of the expansion part and the installation part.
Through adopting above-mentioned technical scheme, by the setting of stress groove, help preventing at the reaming in-process, the stress concentration of expansion post to lead to expansion post deformation to be strutted.
Preferably, any sliding groove has all been seted up to the inboard of expansion post, sliding groove's length direction is parallel with butt pole axis direction, all corresponds with sliding groove between any two adjacent fins and is fixed with the sliding block, arbitrary sliding block all imbeds and corresponds sliding groove and with sliding groove cooperation of sliding.
Through adopting above-mentioned technical scheme, by the cooperation of sliding block and sliding groove, help promoting the stability that the chip groove slided in dodging the passageway.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the end part of the abutting rod is fixed with the chip removing column, and the side wall of the periphery of the chip removing column is abutted against the avoiding channel, so that processing chips are prevented from entering from the avoiding channel and being clamped and fixed on the inner side of the expansion part during processing, the circle center of the expansion part of the chuck is deviated, and the processing precision is improved;
2. the arrangement of the stress groove and the rubber pad is beneficial to prolonging the service life of the internal expansion type chuck;
3. through the cooperation of sliding of fin and sliding block and sliding groove, help promoting the stability that the antidandruff post slided in dodging the passageway.
Drawings
FIG. 1 is a schematic view of an internal expanding chuck;
FIG. 2 is an enlarged view of a portion A in FIG. 1, which mainly shows a schematic view of a sliding block and a sliding groove structure;
FIG. 3 is a sectional view mainly showing the overall structure of an internal expanding chuck;
fig. 4 is an exploded view of an internal expanding collet configuration.
Reference numerals: 1. a chuck body; 11. a baffle ring; 2. an installation part; 21. a butting rod; 211. a dandruff removing column; 212. a baffle plate; 213. a fin; 214. a rubber pad; 215. a sliding block; 22. a chute; 3. an expansion section; 31. expanding the column; 311. avoiding the channel; 312. a sliding groove; 32. a stress slot; 4. compressing the spring.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses internal expanding chuck.
Referring to fig. 1 and 2, an internal expanding chuck, including chuck body 1, chuck body 1 includes installation department 2 and expansion portion 3, installation department 2 sets up to cylindric, expansion portion 3 is located the one end of cylindric installation department 2, expansion portion 3 is including expanding post 31, expansion post 31 is provided with threely around the even interval of installation department 2 central lines, three expansion post 31 encloses to establish and forms dodge passageway 311, it sets up to circular with 2 axis vertically planes of installation department to dodge passageway 311, spout 22 has been seted up to the coaxial on the installation department 2, the cross section of spout 22 sets up to circular, the diameter of spout 22 is greater than dodge passageway 311 and spout 22 and dodge passageway 311 intercommunication. The outside of three expansion post 31 all is the axis coincidence of cambered surface setting and arbitrary cambered surface and installation department 2. Be provided with in the installation department 2 and connect pole 21, connect pole 21 to be close to the one end coaxial fixation of expansion portion 3 to have the antidandruff post 211, the diameter of connecting pole 21 is greater than the diameter of antidandruff post 211, the lateral wall of antidandruff post 211 week side with dodge passageway 311 butt cooperation, connect pole 21 to remove the expansion of drive expansion portion 3 and then tensioning work piece.
Referring to fig. 3 and 4, three fins 213 are fixed to the chip removing column 211, and the three fins 213 are uniformly spaced around the axis of the chip removing column 211. The inner side of any expansion column 31 is provided with a sliding groove 312, the length direction of the sliding groove 312 is parallel to the axial direction of the butting rod 21, sliding blocks 215 are correspondingly fixed between any two adjacent fins 213 and the sliding groove 312, and any sliding block 215 is embedded into the corresponding sliding groove 312 and is in sliding fit along the length direction of the sliding groove 312. One end of the abutting rod 21 close to the dandruff removing column 211 is an inclined surface, and the abutting rod 21 abuts against the expansion column 31 through the inclined surface. A stress groove 32 is arranged on the outer wall of any expansion column 31 along the radial direction, and the stress groove 32 is positioned at the joint of the expansion part 3 and the mounting part 2
Referring to fig. 3 and 4, a baffle 212 is coaxially fixed at one end of the abutting rod 21 away from the expansion portion 3, a compression spring 4 is coaxially sleeved on the abutting rod 21, one end of the compression spring 4 abuts against one end of the baffle 212 close to the expansion portion 3, and the other end of the compression spring 4 abuts against one end of the slideway close to the expansion portion 3. A baffle ring 11 is coaxially fixed on the inner side of the slideway, and one end of the baffle ring 11 is tightly propped against the baffle 212. A rubber pad 214 is coaxially fixed at one end of the abutting rod 21 far away from the expansion part 3.
The implementation principle of the internal expanding chuck of the embodiment of the application is as follows: in the application, the abutting rod 21 moves along the axial direction of the slideway, the baffle 212 on the abutting rod 21 compresses the compression spring 4, at the moment, the abutting rod 21 and the chip removing column 211 slowly move towards one side of the expansion part 3, in the process that the abutting rod 21 and the chip removing column 211 slowly move towards one side of the expansion part 3, the avoiding channel 311 can be subjected to reaming treatment, and then the expansion column 31 is expanded, so that the effect of abutting against a workpiece is realized; when the workpiece needs to be taken down, the compression spring 4 is restored, the abutting rod 21 is restored to the original position under the action of the compression spring 4 and abuts against the stop ring 11, the expansion part 3 contracts, and the workpiece can be taken down.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The internal expanding chuck comprises a chuck body (1), wherein the chuck body (1) comprises an installation part (2) and an expansion part (3), the expansion part (3) comprises expansion columns (31), the expansion columns (31) are arranged at intervals around the central line of the installation part (2), the inner sides of the expansion columns (31) are surrounded to form an avoiding channel (311), and the outer sides of the expansion columns (31) are all provided with arc surfaces; be provided with in installation department (2) and connect pole (21), it moves drive expansion portion (3) expansion and then tensioning work piece to connect pole (21), its characterized in that: the extension rod (21) is provided with a restoring piece, one end of the extension rod (21) close to the expansion part (3) is fixed with a chip removing column (211) for preventing processing chips from entering the expansion part (3) from the avoidance channel (311), and the side wall of the periphery of the chip removing column (211) abuts against the avoidance channel (311).
2. An internal expanding chuck according to claim 1, wherein: the clamp is characterized in that a baffle (212) is fixed at one end, away from the expansion part (3), of the abutting rod (21), the restoring piece is arranged to be a compression spring (4), the axis of the compression spring (4) is coaxial with the axis of the abutting rod (21), one end of the compression spring (4) abuts against the baffle (212), and the other end of the compression spring (4) abuts against the inner side of the clamp body (1).
3. An internal expanding chuck according to claim 2, wherein: a baffle ring (11) is coaxially fixed on the inner side of the chuck body (1), and one end of the baffle ring (11) abuts against the baffle (212).
4. An internal expanding chuck according to claim 1, wherein: fins (213) are arranged between any two adjacent expansion columns (31), and any fin (213) is fixed with the chip removing column (211).
5. An internal expanding chuck according to claim 1, wherein: and a rubber pad (214) is fixed at one end of the abutting rod (21) far away from the expansion part (3).
6. An internal expanding chuck according to claim 1, wherein: one end of the abutting rod (21) contacting with the chuck body (1) is provided with an inclined surface.
7. An internal expanding chuck according to claim 1, wherein: stress grooves (32) are formed in the outer wall of the expansion portion (3) along the radial direction of the expansion portion, and the stress grooves (32) are located at the connecting position of the expansion portion (3) and the installation portion (2).
8. An internal expanding chuck according to claim 4, wherein: the inboard of arbitrary expansion post (31) has all been seted up and has been slided groove (312), the length direction in groove of sliding (312) is parallel with reach pole (21) axis direction, all corresponds with sliding groove (312) between arbitrary two adjacent fins (213) and is fixed with sliding block (215), arbitrary sliding block (215) all imbed and correspond sliding groove (312) and with sliding groove (312) cooperation of sliding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021791190.0U CN212885119U (en) | 2020-08-24 | 2020-08-24 | Internal expanding chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021791190.0U CN212885119U (en) | 2020-08-24 | 2020-08-24 | Internal expanding chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212885119U true CN212885119U (en) | 2021-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021791190.0U Active CN212885119U (en) | 2020-08-24 | 2020-08-24 | Internal expanding chuck |
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|---|---|
| CN (1) | CN212885119U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116871991A (en) * | 2023-09-06 | 2023-10-13 | 福建福南轴承有限公司 | Automatic-cleaning grinding machine for gray iron bearing |
-
2020
- 2020-08-24 CN CN202021791190.0U patent/CN212885119U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116871991A (en) * | 2023-09-06 | 2023-10-13 | 福建福南轴承有限公司 | Automatic-cleaning grinding machine for gray iron bearing |
| CN116871991B (en) * | 2023-09-06 | 2023-12-15 | 福建福南轴承有限公司 | Automatic-cleaning grinding machine for gray iron bearing |
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