CN111390211A - Chuck structure for rapidly clamping shaft workpieces - Google Patents
Chuck structure for rapidly clamping shaft workpieces Download PDFInfo
- Publication number
- CN111390211A CN111390211A CN202010344509.3A CN202010344509A CN111390211A CN 111390211 A CN111390211 A CN 111390211A CN 202010344509 A CN202010344509 A CN 202010344509A CN 111390211 A CN111390211 A CN 111390211A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- chuck structure
- close
- clamping shaft
- guide
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
The invention provides a chuck structure for rapidly clamping shaft workpieces, and belongs to the technical field of machinery. This body of chuck structure tube-shape, the one end opening of body, this internal hollow sleeve that is provided with, telescopic global and the middle threaded connection of body inner wall, the helicla flute has on the terminal surface that the sleeve is close to body opening one end, the body evenly is provided with a plurality of guide blocks along the circumference on being close to the terminal surface of opening one end, there is a calliper along the radial sliding connection of body on the guide block, a plurality of screw thread protruding muscle that correspond with the helicla flute have on the calliper, the one end that the sleeve is close to the body bottom has a step hole, step hole female connection has a briquetting, the fixed guide bar that is provided with a plurality of roots and is located briquetting eccentric position department on the briquetting, the guiding hole that corresponds with the guide. The invention has the advantages of high efficiency and the like.
Description
Technical Field
The invention belongs to the technical field of machinery, and relates to a chuck structure for rapidly clamping shaft workpieces.
Background
In the course of working of axle type work piece, need carry out the centre gripping to the work piece earlier, the precision of centre gripping has very big influence to machining precision, the efficiency of centre gripping influences machining efficiency very greatly, the centre gripping instrument of current axle type work piece is generally adjusted the centre gripping clearance through a plurality of gliding callipers and is realized, then fixes each calliper after adjusting, but, the work piece vibrations and non-axial external force effect in the course of working are lax very easily down, seriously influence machining efficiency and machining precision.
Disclosure of Invention
The invention aims to provide a chuck structure for rapidly clamping shaft workpieces, aiming at the problems in the prior art.
The purpose of the invention can be realized by the following technical scheme: the utility model provides a press from both sides chuck structure of dress axle type work piece fast, its characterized in that, the body of this chuck structure tube-shape, the one end opening of body, this internal hollow sleeve that is provided with, telescopic global and the middle threaded connection of body inner wall, the helicla flute has on the terminal surface that the sleeve is close to body opening one end, the body is close to the terminal surface of opening one end and evenly is provided with a plurality of guide blocks of circumference, there is a calliper along the radial sliding connection of body on the guide block, have a plurality of screw thread protruding muscle that correspond with the helicla flute on the calliper, the one end that the sleeve is close to the body bottom has a step hole, step hole female connection has a briquetting, the fixed guide bar that is located briquetting eccentric position department that is provided with a plurality of roots on the briquetting, the guide hole that corresponds with the guide bar is.
Directly insert axle type work piece from the open-ended one end of body, the clamp plate pressurized and to the bottom translation of body, the driving sleeve is rotatory, the rotatory in-process of sleeve, under the interact of the protruding muscle of screw thread on helicla flute and the calliper, calliper moves to the axis direction of body along the guide block, a plurality of calliper synchronous movement, carry out the centre gripping to axle type work piece, and the tip of axle type work piece also receives better straight correction, whole in-process, axle type work piece need not other instrument or manual operation, only need directly insert axle type work piece can, high efficiency, and the centre gripping is reliable, in axle type work piece by the course of working, the effect of the axial external force only can further increase calliper to the clamping strength of work piece, the condition of slack can not exist, the characteristic is when axle type work piece carries out the trompil operation of axis direction, firmness and axiality are all high.
In the above chuck structure for rapidly clamping shaft workpieces, a return spring is connected between the pressing block and the bottom of the body.
After the shaft workpiece is taken out, the reset spring can reset the pressure plate to enable the calipers to move outwards and restore the state before clamping again.
In the chuck structure for rapidly clamping the shaft workpiece, a plurality of avoiding grooves are formed in the bottom of the body, and a plurality of positioning holes corresponding to the avoiding grooves are circumferentially and uniformly formed in the end face, close to the bottom of the body, of the sleeve.
In order to be capable of rapidly removing the workpiece, the avoiding groove and the positioning hole are arranged, the wrench is inserted into the avoiding groove and inserted into the positioning hole, and the clamping of the calipers to the workpiece can be loosened by pulling the sleeve to rotate reversely due to the positioning hole at the eccentric position of the body.
In the above chuck structure for rapidly clamping shaft workpieces, the lead angle of the threads on the circumferential surface of the pressing block is greater than the lead angle of the threads on the circumferential surface of the sleeve.
The mode of driving the small screw thread through the big screw thread enables the work piece to be able to sensitive drive clamp plate removal when inserting to make the sleeve rotatory.
Drawings
Fig. 1 is a schematic plan view of the chuck structure.
Fig. 2 is a cross-sectional view of the present chuck construction.
In the figure, 1, a body; 2. a sleeve; 3. a helical groove; 4. a guide block; 5. a caliper; 6. briquetting; 7. a guide bar; 8. a return spring; 9. an avoidance groove; 10. and (7) positioning the holes.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1 and 2, the body 1 of this chuck structure tube-shape, the one end opening of body 1, be provided with a hollow sleeve 2 in the body 1, the peripheral and the middle threaded connection of body 1 inner wall of sleeve 2, sleeve 2 has helicla flute 3 on being close to the terminal surface of body 1 opening one end, body 1 evenly is provided with a plurality of guide blocks 4 on being close to the terminal surface of opening one end circumference, there is a calliper 5 along the radial sliding connection of body 1 on the guide block 4, calliper 5 is last to have a plurality of screw thread protruding muscle that correspond with helicla flute 3, sleeve 2 has a step hole near the one end of body 1 bottom, step hole female connection has a briquetting 6, the fixed guide bar 7 that is located briquetting 6 eccentric position department that is provided with a plurality of roots on the briquetting 6, the guide hole that corresponds with guide bar 7 is seted up to the bottom.
The shaft workpiece is directly inserted from one end of the opening of the body 1, the pressure plate is pressed to translate towards the bottom of the body 1, the sleeve 2 is driven to rotate, in the process of rotating the sleeve 2, under the interaction of the spiral groove 3 and the thread convex rib on the caliper 5, the caliper 5 moves along the guide block 4 to the axial direction of the body 1, the calipers 5 move synchronously, the shaft-like workpieces are clamped, the end parts of the shaft-like workpieces are also straightened well, and in the whole process, the shaft workpieces do not need other tools or manual operation, only the shaft workpieces need to be directly inserted, the efficiency is extremely high, the clamping is reliable, in the process of processing the shaft workpiece, the clamping strength of the caliper 5 to the shaft workpiece can be further increased only by the action of the axial external force, the looseness can not occur, the special tool is characterized in that when the shaft workpiece is subjected to hole opening operation in the axis direction, the firmness and the coaxiality are both extremely high.
A return spring 8 is connected between the pressing block 6 and the bottom of the body 1. The return spring 8 can return the pressure plate after the shaft workpiece is taken out, so that the caliper 5 moves outwards to return to the state before clamping again.
A plurality of mutual avoiding grooves 9 are formed in the bottom of the body 1, and a plurality of positioning holes 10 corresponding to the avoiding grooves 9 are circumferentially and uniformly formed in the end face, close to the bottom of the body 1, of the sleeve 2. In order to be able to remove the workpiece quickly, the avoiding groove 9 and the positioning hole 10 are arranged, the spanner is inserted into the avoiding groove 9 and is inserted into the positioning hole 10, and the clamping of the caliper 5 to the workpiece can be released by pulling the sleeve 2 to rotate reversely because the positioning hole 10 is arranged at the eccentric position of the body 1.
The lead angle of the screw thread on the circumferential surface of the pressing block 6 is larger than that of the screw thread on the circumferential surface of the sleeve 2. The mode of driving small screw threads through large screw threads enables the pressure plate to be sensitively driven to move when a workpiece is inserted, so that the sleeve 2 is rotated.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (4)
1. The chuck structure for rapidly clamping shaft workpieces is characterized in that a cylindrical body (1) of the chuck structure is provided with an opening at one end of the body (1), a hollow sleeve (2) is arranged in the body (1), the periphery of the sleeve (2) is in threaded connection with the middle of the inner wall of the body (1), a spiral groove (3) is formed in the end face, close to the opening end of the body (1), of the sleeve (2), a plurality of guide blocks (4) are uniformly arranged on the end face, close to the opening end, of the body (1) in the circumferential direction, calipers (5) are connected on the guide blocks (4) in a sliding mode along the radial direction of the body (1), a plurality of thread convex ribs corresponding to the spiral groove (3) are arranged on the calipers (5), a step hole is formed in one end, close to the bottom of the body (1), of the sleeve (2), and a pressing block (6) is connected to, the pressing block (6) is fixedly provided with a plurality of guide rods (7) located at the eccentric positions of the pressing block (6), and the bottom of the body (1) is provided with guide holes corresponding to the guide rods (7).
2. The chuck structure for rapidly clamping shaft workpieces according to claim 1, wherein a return spring (8) is connected between the pressing block (6) and the bottom of the body (1).
3. The chuck structure for rapidly clamping shaft workpieces according to claim 1 or 2, wherein a plurality of avoiding grooves (9) are formed in the bottom of the body (1), and a plurality of positioning holes (10) corresponding to the avoiding grooves (9) are uniformly formed in the circumferential direction on the end surface, close to the bottom of the body (1), of the sleeve (2).
4. The chuck structure for rapidly clamping shaft workpieces according to claim 1, wherein the lead angle of the threads on the circumferential surface of the pressing block (6) is larger than that of the threads on the circumferential surface of the sleeve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010344509.3A CN111390211A (en) | 2020-04-27 | 2020-04-27 | Chuck structure for rapidly clamping shaft workpieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010344509.3A CN111390211A (en) | 2020-04-27 | 2020-04-27 | Chuck structure for rapidly clamping shaft workpieces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111390211A true CN111390211A (en) | 2020-07-10 |
Family
ID=71417166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010344509.3A Pending CN111390211A (en) | 2020-04-27 | 2020-04-27 | Chuck structure for rapidly clamping shaft workpieces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111390211A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112496820A (en) * | 2021-02-02 | 2021-03-16 | 烟台工程职业技术学院(烟台市技师学院) | Centering tool clamp for numerical control machine tool |
| CN113275670A (en) * | 2021-06-07 | 2021-08-20 | 浙江陀曼精密机械有限公司 | Trial cut anchor clamps universal connection dish |
| CN114367843A (en) * | 2022-01-13 | 2022-04-19 | 山东小鸭精工机械有限公司 | Wheel merry go round machine processingequipment |
-
2020
- 2020-04-27 CN CN202010344509.3A patent/CN111390211A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112496820A (en) * | 2021-02-02 | 2021-03-16 | 烟台工程职业技术学院(烟台市技师学院) | Centering tool clamp for numerical control machine tool |
| CN113275670A (en) * | 2021-06-07 | 2021-08-20 | 浙江陀曼精密机械有限公司 | Trial cut anchor clamps universal connection dish |
| CN114367843A (en) * | 2022-01-13 | 2022-04-19 | 山东小鸭精工机械有限公司 | Wheel merry go round machine processingequipment |
| CN114367843B (en) * | 2022-01-13 | 2023-03-03 | 山东小鸭精工机械有限公司 | Wheel merry go round machine processingequipment |
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