CN211304833U - Accurate adjustable self-centering chuck - Google Patents
Accurate adjustable self-centering chuck Download PDFInfo
- Publication number
- CN211304833U CN211304833U CN201921320683.3U CN201921320683U CN211304833U CN 211304833 U CN211304833 U CN 211304833U CN 201921320683 U CN201921320683 U CN 201921320683U CN 211304833 U CN211304833 U CN 211304833U
- Authority
- CN
- China
- Prior art keywords
- adjusting
- chuck
- pressure plate
- groove
- fixing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Gripping On Spindles (AREA)
Abstract
The utility model relates to a chuck technical field especially relates to an accurate adjustable self-centering chuck. The chuck positioning device comprises a pressure plate, a chuck, a plurality of adjusting screws and a plurality of adjusting screws, wherein the periphery of the pressure plate is provided with adjusting threaded holes, and the adjusting screw sleeves of a dial plate are tightly pressed by the adjusting screws to finely adjust the position of the pressure plate, so that the chuck can be positioned at the axis position, the machining precision of a machine tool is higher, and the problems that the traditional chuck does not have a self-aligning function, the chuck and a main shaft are slightly eccentric, the machining precision of the machining tool is influenced, and the cutter is greatly damaged during machining; locking screw is installed at the top of the adjusting screw, and the adjusting screw is tightly pressed through the locking screw, so that the phenomenon that the chuck main shaft is not concentric and the processing precision is reduced due to the fact that the adjusting screw is loosened in the processing process is avoided.
Description
Technical Field
The utility model relates to a chuck technical field especially relates to an accurate adjustable self-centering chuck.
Background
Chucks are mechanical devices used to clamp workpieces on machine tools. The machine tool accessory clamps and positions a workpiece by utilizing the radial movement of movable clamping jaws uniformly distributed on a chuck body. The chuck generally comprises a chuck body, movable jaws and a jaw driving mechanism.
The existing chuck does not have a self-aligning function, and the chuck and a main shaft have slight deviation and non-concentricity, so that the machining precision of a machining tool can be influenced, and the damage to the tool during machining is large; when the installation deviation of the chuck and the main shaft is large, certain potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is that aiming at the technical defects, the utility model provides a precision adjustable self-centering chuck, which is provided with adjusting threaded holes at the periphery of a pressure plate, and the position of the pressure plate is finely adjusted by pressing an adjusting shaft sleeve of a dial plate through a plurality of adjusting screws, so that the chuck can be positioned at the axis position, the machining precision of the machine tool is higher, the problem that the traditional chuck does not have the self-centering function, the chuck and a main shaft have slight deviation and non-centering, the machining precision of a machining tool can be influenced, and the problem that the damage to the tool is larger during machining is solved; locking screw is installed at the top of the adjusting screw, and the adjusting screw is tightly pressed through the locking screw, so that the phenomenon that the chuck main shaft is not concentric and the processing precision is reduced due to the fact that the adjusting screw is loosened in the processing process is avoided.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the device comprises a disc body, a pressure disc, a chuck assembly, a bolt and a transition disc; a plurality of first fixing holes are arranged on the periphery of the middle part of the pressure plate in a penetrating manner in the height direction; a plurality of first fixing thread grooves are uniformly formed in the periphery of the bottom of the tray body; the bolt penetrates through the first fixing hole and then is in threaded connection with the first fixing thread groove; the pressure plate is fixedly arranged at the bottom of the plate body through bolts; the chuck assembly is arranged between the disc body and the pressure plate; the transition disc is arranged at the bottom of the pressure plate; a plurality of second fixing holes are uniformly arranged on the periphery of the bottom of the pressure plate in a penetrating manner in the height direction; a plurality of second fixing threaded holes are uniformly formed in the periphery of the middle of the transition disc; the second fixing hole and the second fixing threaded hole are fixedly locked through a bolt; through holes are formed in the middle parts of the disc body and the pressure plate in a penetrating manner; the two through holes are equal in diameter.
Further optimizing the technical scheme, a groove is arranged in the middle of the bottom of the pressure plate; the middle part of the right side of the transition disc is provided with an adjusting shaft sleeve; the adjusting shaft sleeve is arranged inside the groove; the length of the adjusting shaft sleeve is equal to the depth of the groove.
Further optimizing the technical scheme, the outer diameter of the adjusting shaft sleeve is smaller than the inner diameter of the groove; the inner diameter of the adjusting shaft sleeve is larger than the outer diameter of the through hole.
Further optimizing the technical scheme, the periphery of the pressure plate is uniformly provided with a plurality of adjusting thread grooves in a penetrating manner in the horizontal direction; the adjusting thread groove is vertical to the second fixing hole; the adjusting thread groove and the second fixing hole are arranged at intervals.
Further optimize this technical scheme, the regulation thread groove with recess middle part link up.
Further optimizing the technical scheme, the inner part of the adjusting thread groove is in threaded connection with an adjusting screw; the bottom of the adjusting screw is in contact with the peripheral surface of the adjusting shaft sleeve.
Further optimize this technical scheme, adjusting screw top regulation thread groove inside threaded connection have a locking screw.
Compared with the prior art, the utility model has the advantages of it is following: 1. the periphery is provided with an adjusting threaded hole, and the position of the pressure plate is finely adjusted by tightly pressing an adjusting shaft sleeve of the dial through a plurality of adjusting screws, so that the chuck can be positioned at the axis position, the machining precision of the machine tool is higher, and the problems that the traditional chuck does not have a self-aligning function, the chuck and a main shaft have slight deviation and non-alignment, the machining precision of the machining tool is influenced, and the cutter is greatly damaged during machining are solved; 2. the locking screw is arranged at the top of the adjusting screw and is tightly pressed through the locking screw, so that the phenomena that the chuck main shaft is not concentric and the processing precision is reduced due to the fact that the adjusting screw is loosened in the processing process are prevented; 3. the outer diameter of the adjusting shaft sleeve is smaller than the inner diameter of the groove, so that the movable adjustment of the chuck can be ensured; 4. the inner diameter of the adjusting shaft sleeve is larger than the outer diameter of the through hole, so that the condition that the chuck and the spindle are not concentric in the initial state and the through hole is still located inside the adjusting shaft sleeve in the horizontal plane after the later fine adjustment is concentric can be guaranteed, and the position of the through hole is not influenced when the clamping workpiece is inserted into the position of the through hole.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a precision adjustable self-centering chuck.
Fig. 2 is a partial exploded view of an internal mounting structure of a precision adjustable self-centering chuck.
Fig. 3 is a partial cross-sectional view of an internal mounting structure of a precision adjustable self-centering chuck.
Fig. 4 is a partial sectional view of an adjusting portion of an adjusting sleeve of a precisely adjustable self-centering chuck.
In the figure: 1. a tray body; 101. a first fixing thread groove; 102. a through hole; 2. a platen; 201. a first fixing hole; 202. a second fixing hole; 203. a groove; 204. adjusting the thread groove; 205. an adjusting screw; 206. locking the screw; 3. a chuck assembly; 4. a bolt; 5. a dial-over plate; 501. a second fixing threaded hole; 502. and an adjusting shaft sleeve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
The first embodiment is as follows: with reference to fig. 1-3, a precision adjustable self-centering chuck is characterized in that: comprises a disc body 1, a pressure plate 2, a chuck component 3, a bolt 4 and a transition disc 5; a plurality of first fixing holes 201 are arranged on the periphery of the middle part of the pressure plate 2 in a penetrating manner in the height direction; a plurality of first fixing thread grooves 101 are uniformly formed in the periphery of the bottom of the tray body 1; the bolt 4 penetrates through the first fixing hole 201 and then is in threaded connection with the first fixing thread groove 101; the pressure plate 2 is fixedly arranged at the bottom of the plate body 1 through a bolt 4; the chuck assembly 3 is arranged between the disc body 1 and the pressure plate 2; the transition disc 5 is arranged at the bottom of the pressure plate 2; a plurality of second fixing holes 202 are uniformly arranged on the periphery of the bottom of the pressure plate 2 in a penetrating manner in the height direction; a plurality of second fixing threaded holes 501 are uniformly formed in the periphery of the middle of the transition disc 5; the second fixing hole 202 and the second fixing threaded hole 501 are fixedly locked by a bolt 4; through holes 102 are formed in the middle of the disc body 1 and the middle of the pressure plate 2 in a penetrating manner; the two through holes 102 have equal diameters; a groove 203 is formed in the middle of the bottom of the pressure plate 2; an adjusting shaft sleeve 502 is arranged in the middle of the right side of the transition disc 5; the adjusting shaft sleeve 502 is arranged inside the groove 203; the length of the adjusting shaft sleeve 502 is equal to the depth of the groove 203; the outer diameter of the adjusting shaft sleeve 502 is smaller than the inner diameter of the groove 203; the inner diameter of the adjusting shaft sleeve 502 is larger than the outer diameter of the through hole 102; a plurality of adjusting thread grooves 204 are uniformly arranged on the periphery of the pressure plate 2 in a penetrating manner in the horizontal direction; the adjusting thread groove 204 is vertical to the second fixing hole 202; the adjusting thread groove 204 and the second fixing hole 202 are arranged at intervals; the middle parts of the adjusting thread groove 204 and the groove 203 are communicated; an adjusting screw 205 is connected with the inner thread of the adjusting thread groove 204; the bottom of the adjusting screw 205 is in contact with the outer peripheral surface of the adjusting shaft sleeve 502; the top of the adjusting screw 205 is screwed with a locking screw 206 inside the adjusting screw groove 204.
When the chuck is used, step one, as shown in fig. 1-4, when the chuck is installed, the chuck is placed at the position of the transition disc 5 of the spindle, the groove 203 of the pressure disc 2 at the bottom of the chuck is inserted into the position of the adjusting shaft sleeve 502 of the transition disc 5, then the chuck is rotated to enable the second through hole 102 on the pressure disc 2 to correspond to the second fixing threaded hole 502 on the transition disc 5, then the transition disc 5 and the pressure disc 2 are fixedly locked through the bolt 4, the pressure disc 2 is installed, and the improved chuck installation process is the same as the transmission chuck installation process; whether the chuck rotates concentrically with the spindle is detected by the tool.
If the chuck and the spindle are not concentric, a plurality of adjusting thread grooves 204 are uniformly arranged on the periphery of the pressure plate 2 in a penetrating manner in the horizontal direction; the adjusting thread groove 204 is perpendicular to the second fixing hole 202; the adjusting thread groove 204 and the second fixing hole 202 are arranged at intervals', so that the adjusting screw 205 can be screwed into the adjusting thread groove 204 by an allen wrench, the adjusting screws 205 are screwed into the four adjusting thread grooves 204 in sequence, and the adjusting screws 205 are firstly screwed into the adjusting thread grooves without contacting with the adjusting shaft sleeve 502.
Observing the deviation direction of the chuck, screwing the adjusting screw 205 which is laterally deviated and close to the position of the main shaft inwards, screwing the adjusting screw 205 at the position into contact with the adjusting shaft sleeve 502, and continuously screwing the adjusting screw 205 at the position, wherein the adjusting screw 205 at the position moves towards the middle part, so that the chuck at the position is pushed to be far away from the shaft center under the action of the adjusting shaft sleeve 502 in a fixed state, the lateral deviation distance of the chuck is reduced, and the adjusting screw 205 measures the shaft center of the chuck once when the adjusting screw 205 is screwed at a certain angle; because' the outer diameter of the adjusting shaft sleeve 502 is smaller than the inner diameter of the groove 203; the inner diameter of the adjusting shaft sleeve 502 is larger than the outer diameter of the through hole 102', the chuck can be movably adjusted, the situation that the chuck and a main shaft are not concentric in the initial state and the through hole 102 is still located inside the adjusting shaft sleeve 502 in the horizontal plane after the later fine adjustment is concentric can be guaranteed, and the position of the through hole 102 is not influenced when a workpiece is inserted and clamped.
Step two, as shown in fig. 1 to 4, when the adjusting screw 205 which is laterally far away from the main shaft position is adjusted, the adjusting screw 205 at the position is loosened, and the opposite adjusting screw 205 is adjusted in the same way; 'the adjusting screw groove 204 and the second fixing hole 202 are spaced apart from each other', so that the screw adjusting groove and the second fixing hole 202 are distributed on the pressure plate 2 at the maximum pitch, the pressure plate 2 has higher strength, and if the screw adjusting groove and the second fixing hole 202 are farther apart from each other, the pressure plate 2 has lower strength.
After the chuck is aligned, the locking screws 206 are sequentially screwed into the positions of the adjusting thread grooves 204 until the locking screws 206 and the adjusting screws 205 are pressed tightly, and the locking screws 206 are arranged to prevent the adjusting screws 205 from being loosened to a certain extent; in conclusion, the adjusting threaded holes are formed in the periphery of the pressure plate 2, and the adjusting shaft sleeves 502 of the dial 5 are pressed tightly by the adjusting screws 205 to finely adjust the position of the pressure plate 2, so that the chuck can be positioned at the axis position, the machining precision of the machine tool is high, and the problems that the traditional chuck does not have a self-aligning function, the chuck and a spindle are slightly eccentric, the machining precision of the machining tool is influenced, and the cutter is greatly damaged during machining are solved; the locking screw 206 is arranged at the top of the adjusting screw 205, and the adjusting screw 205 is tightly pressed through the locking screw 206, so that the phenomenon that the adjusting screw 205 is loosened in the machining process, the chuck spindle is not concentric, and the machining precision is reduced is prevented.
The utility model discloses a control mode comes automatic control through the controller, and the control circuit of controller can realize through the simple programming of technical staff in this field, belongs to the common general knowledge in this field, and the utility model discloses mainly be used for protecting mechanical device, so the utility model discloses no longer explain control mode and circuit connection in detail.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (7)
1. The utility model provides a precision is adjustable from centering chuck which characterized in that: comprises a disc body (1), a pressure plate (2), a chuck component (3), a bolt (4) and a transition disc (5); a plurality of first fixing holes (201) are arranged on the periphery of the middle part of the pressure plate (2) in a penetrating manner in the height direction; a plurality of first fixing thread grooves (101) are uniformly formed in the periphery of the bottom of the tray body (1); the bolt (4) penetrates through the first fixing hole (201) and then is in threaded connection with the first fixing thread groove (101); the pressure plate (2) is fixedly arranged at the bottom of the plate body (1) through a bolt (4); the chuck assembly (3) is arranged between the disc body (1) and the pressure plate (2); the transition disc (5) is arranged at the bottom of the pressure plate (2); a plurality of second fixing holes (202) are uniformly arranged on the periphery of the bottom of the pressure plate (2) in a penetrating manner in the height direction; a plurality of second fixing threaded holes (501) are uniformly formed in the periphery of the middle of the transition disc (5); the second fixing hole (202) and the second fixing threaded hole (501) are fixedly locked through a bolt (4); through holes (102) are formed in the middle of the disc body (1) and the middle of the pressure plate (2) in a penetrating manner; the two through holes (102) are equal in diameter.
2. The precision adjustable self-centering chuck according to claim 1, wherein: a groove (203) is formed in the middle of the bottom of the pressure plate (2); an adjusting shaft sleeve (502) is arranged in the middle of the right side of the transition disc (5); the adjusting shaft sleeve (502) is arranged inside the groove (203); the length of the adjusting shaft sleeve (502) is equal to the depth of the groove (203).
3. The precision adjustable self-centering chuck according to claim 2, wherein: the outer diameter of the adjusting shaft sleeve (502) is smaller than the inner diameter of the groove (203); the inner diameter of the adjusting shaft sleeve (502) is larger than the outer diameter of the through hole (102).
4. The precision adjustable self-centering chuck according to claim 3, wherein: a plurality of adjusting thread grooves (204) are uniformly arranged on the periphery of the pressure plate (2) in a penetrating manner in the horizontal direction; the adjusting thread groove (204) is vertical to the second fixing hole (202); the adjusting thread groove (204) and the second fixing hole (202) are arranged at intervals.
5. The precision adjustable self-centering chuck according to claim 4, wherein: the adjusting thread groove (204) is communicated with the middle part of the groove (203).
6. The precision adjustable self-centering chuck according to claim 4, wherein: an adjusting screw (205) is connected with the inner part of the adjusting thread groove (204) in a threaded manner; the bottom of the adjusting screw (205) is contacted with the outer peripheral surface of the adjusting shaft sleeve (502).
7. The precision adjustable self-centering chuck according to claim 6, wherein: the top of the adjusting screw (205) is in threaded connection with a locking screw (206) inside the adjusting thread groove (204).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921320683.3U CN211304833U (en) | 2019-08-15 | 2019-08-15 | Accurate adjustable self-centering chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921320683.3U CN211304833U (en) | 2019-08-15 | 2019-08-15 | Accurate adjustable self-centering chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211304833U true CN211304833U (en) | 2020-08-21 |
Family
ID=72064509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921320683.3U Active CN211304833U (en) | 2019-08-15 | 2019-08-15 | Accurate adjustable self-centering chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211304833U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113172244A (en) * | 2021-04-29 | 2021-07-27 | 杭州汽轮铸锻有限公司 | Machining system for steam turbine rotor |
| CN114472948A (en) * | 2022-01-24 | 2022-05-13 | 呼和浩特众环工贸股份有限公司 | Chuck capable of realizing high concentricity by multiple combinations |
-
2019
- 2019-08-15 CN CN201921320683.3U patent/CN211304833U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113172244A (en) * | 2021-04-29 | 2021-07-27 | 杭州汽轮铸锻有限公司 | Machining system for steam turbine rotor |
| CN114472948A (en) * | 2022-01-24 | 2022-05-13 | 呼和浩特众环工贸股份有限公司 | Chuck capable of realizing high concentricity by multiple combinations |
| CN114472948B (en) * | 2022-01-24 | 2023-08-22 | 呼和浩特众环工贸股份有限公司 | Chuck capable of achieving high concentricity through various combinations |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211304833U (en) | Accurate adjustable self-centering chuck | |
| KR102263072B1 (en) | Quick Work Holder Clamp Device | |
| CN110977537A (en) | Clamp for processing arc straight groove of rectangular plate | |
| CN110842241A (en) | Tensioning clamp | |
| CN113385835B (en) | Long tube-shape work piece graduation system of processing | |
| CN101745829B (en) | Adjustable rotary electrical-discharge machining frock clamp | |
| CN210878670U (en) | Universal fixture for milling inner side surface, outer side surface and two end surfaces of cylindrical workpiece | |
| CN211219681U (en) | Numerical control machining center frock clamp | |
| CN209811753U (en) | Four-axis machining center frock quick change anchor clamps | |
| CN209850377U (en) | Universal locking frock | |
| CN110625415A (en) | Universal fixture for milling inner side surface, outer side surface and two end surfaces of cylindrical workpiece and clamping method | |
| CN220547933U (en) | Vertical turning mold | |
| CN113385836B (en) | Indexing and positioning jig for long cylindrical workpiece | |
| CN110711871A (en) | Machining process and tool for super-huge spherical roller with central through hole | |
| CN220278972U (en) | End pressure anti-deformation clamp | |
| CN218015827U (en) | Quick roof-measuring correction jig | |
| CN219465447U (en) | Differential mechanism casing anchor clamps | |
| CN219152208U (en) | Automatic alignment fixture | |
| CN216178582U (en) | Clamping device is used in processing of holder | |
| CN219582278U (en) | Machining turning mold for eccentric side roller shaft | |
| CN110814373B (en) | Self-adaptive clamp | |
| CN219725401U (en) | Fine adjustment clamping mechanism and processing equipment | |
| CN220679594U (en) | Machine tool fixture for external thread machining | |
| CN216263518U (en) | Machine tool spindle hole positioning and jacking device | |
| CN210849337U (en) | Centre bore positioning mechanism for machining |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A precision adjustable self-centering chuck Effective date of registration: 20220906 Granted publication date: 20200821 Pledgee: Shanghai Pudong Development Bank Co Ltd Hohhot University East Street sub branch Pledgor: Hohhot Zhonghuan industry and Trade Co.,Ltd. Registration number: Y2022150000093 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |