CN113547140B - Centrifugal force compensation device special for numerical control equipment chuck - Google Patents
Centrifugal force compensation device special for numerical control equipment chuck Download PDFInfo
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- CN113547140B CN113547140B CN202110717100.6A CN202110717100A CN113547140B CN 113547140 B CN113547140 B CN 113547140B CN 202110717100 A CN202110717100 A CN 202110717100A CN 113547140 B CN113547140 B CN 113547140B
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- push rod
- chuck
- mounting seat
- base
- chuck body
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- 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
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention provides a special centrifugal force compensation device for a numerical control equipment chuck, which comprises a base, a chuck body, a pull bolt, a push rod driving mechanism, a connecting rod, a balancing weight and a pressing claw, wherein the chuck body is arranged at the front side of the base, the pull bolt is arranged at the center of the base, one end of the pull bolt is connected with the chuck body to provide clamping force for the chuck body, a plurality of connecting rods capable of swinging are arranged on the periphery of the chuck body, the balancing weight is arranged at one end of each connecting rod, the pressing claw is arranged at the other end of each connecting rod, a plurality of installation cavities which are respectively in one-to-one correspondence with the connecting rods are arranged in the circumference of the base, the push rod driving mechanism is arranged in each installation cavity, and a movable push rod is arranged in each push rod driving mechanism and is rotatably connected with each connecting rod. The device can compress tightly the work piece when high-speed rotation to work piece centrifugal force has been reduced effectively, and the piece risk is flown in the reduction, has solved chuck life-span problem simultaneously.
Description
[ field of technology ]
The invention relates to the technical field of numerical control equipment, in particular to a centrifugal force compensation device special for a chuck of the numerical control equipment.
[ background Art ]
The machining industry has special workpieces with large weight, small clamping size and high precision, the centrifugal force of the workpieces is large when the workpieces rotate at high speed, the related precision cannot be ensured if a chuck with large clamping force is adopted in the machining process, and a high-precision small chuck is required to be adopted to ensure the related precision, but when the chuck rotates at high speed, the possibility of flying parts exists due to the fact that the centrifugal force of the workpieces is too large, the service life of the chuck is greatly reduced, and a special centrifugal force compensation device for the chuck of the numerical control equipment is provided.
[ invention ]
The invention aims to solve the problems in the prior art and provides a special centrifugal force compensation device for a numerical control equipment chuck, which can reduce centrifugal force and reduce the flying risk.
In order to achieve the above purpose, the invention provides a special centrifugal force compensation device for a numerical control equipment chuck, which comprises a base, a chuck body, a pull bolt, a push rod driving mechanism, a connecting rod, a balancing weight and a pressing claw, wherein the front side of the base is provided with the chuck body, the center of the base is provided with the pull bolt, one end of the pull bolt is connected with the chuck body to provide clamping force for the chuck body, the periphery of the chuck body is provided with a plurality of swinging connecting rods, one end of each connecting rod is provided with the balancing weight, the other end of each connecting rod is provided with the pressing claw, the circumference of the base is provided with a plurality of installation cavities which are respectively in one-to-one correspondence with each connecting rod, the installation cavities are internally provided with the push rod driving mechanism, and the push rod driving mechanism is internally provided with a movable push rod which is rotatably connected with the connecting rod.
Preferably, the push rod driving mechanism further comprises a push rod mounting seat, a sealing ring and a spring, wherein the push rod mounting seat is fixedly arranged on the mounting cavity of the base, a central movable cavity is formed in the push rod mounting seat, one end of the push rod is arranged in the central movable cavity through the sealing ring, the other end of the push rod extends out of the central movable cavity and is rotatably connected with the connecting rod, the spring is sleeved on the periphery of the push rod mounting seat, and two ends of the spring are respectively abutted against the push rod mounting seat and the sealing ring.
Preferably, the outer periphery of the push rod mounting seat is provided with a stepped groove, an annular cavity capable of accommodating a spring is formed between the stepped groove and the inner wall of the mounting cavity, the spring is sleeved in the annular cavity, one end of the spring abuts against the stepped groove of the push rod mounting seat, and the other end of the spring abuts against the sealing ring.
Preferably, a first sealing ring is arranged between the inner wall of the sealing ring and the push rod, and a second sealing ring is arranged between the outer wall of the sealing ring and the central movable cavity.
Preferably, a plurality of air inlet channels are arranged in the base, a plurality of air inlet holes communicated with the air inlet channels are arranged in the inner cavity of the pull bolt, the central movable cavity in the push rod mounting seat is divided into two cavities by the sealing ring, and one cavity facing away from the push rod is communicated with the air inlet holes through the air inlet channels.
Preferably, an oil seal is arranged between the push rod mounting seat and the push rod, and the inner ring of the oil seal is provided with a V-shaped sealing lip which is tightly matched with the outer wall of the push rod.
Preferably, one end of the pressing claw used for installing the connecting rod is provided with a limiting protruding portion, the pressing claw is installed below the limiting protruding portion in a swinging mode through the connecting piece, one side, facing the pressing claw, of the limiting protruding portion is provided with a limiting plane, and one side, facing the limiting plane, of the pressing claw is provided with an outwards protruding arc-shaped surface propped against the limiting plane.
Preferably, the mounting seat is mounted on one side of the chuck body, the connecting rod is arranged on the mounting seat capable of swinging through the fixing pin, and the connecting position of the push rod and the connecting rod is located between the balancing weight and the fixing pin.
Preferably, the connecting rod is provided with a waist hole, and the push rod is rotatably connected with the waist hole on the connecting rod through a guide pin.
Preferably, a flange is mounted on the rear side of the base, and the base is mounted on the machine tool through the flange.
The invention has the beneficial effects that: according to the chuck, the chuck body, the pull bolt, the push rod driving mechanism, the connecting rod, the balancing weight, the pressing claw and the like are matched, and the pressing claw can press a workpiece when rotating at a high speed, so that the centrifugal force of the workpiece is effectively reduced, the flying risk is reduced, and meanwhile, the service life of the chuck is prolonged.
The features and advantages of the present invention will be described in detail by way of example with reference to the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a schematic front view of a centrifugal force compensation device special for a numerical control equipment chuck;
FIG. 2 is a schematic view of the AA-direction cross-section of FIG. 1;
fig. 3 is a schematic diagram of the fit state of the pressing claw and the connecting rod of the centrifugal force compensation device special for the numerical control equipment chuck.
[ detailed description ] of the invention
Referring to fig. 1 to 3, the centrifugal force compensation device special for a numerical control equipment chuck of the invention comprises a base 1, a chuck body 2, a pull bolt 3, a push rod driving mechanism 4, a connecting rod 5, a balancing weight 6 and a pressing claw 7, wherein the chuck body 2 is arranged at the front side of the base 1, the chuck body 2 is used for clamping and positioning a workpiece to ensure the processing precision, the pull bolt 3 is arranged at the center of the base 1, one end of the pull bolt 3 is connected with the chuck body 2 to provide clamping force for the chuck body 2, a plurality of swingable connecting rods 5 are arranged at the periphery of the chuck body 2, the balancing weight 6 is arranged at one end of the connecting rods 5, the balancing weight 6 can be adjusted according to different weights of the workpiece to balance the whole fixture device, the pressing claw 7 is arranged at the other end of the balancing weight 6, a plurality of installation cavities 10 which are respectively corresponding to the connecting rods 5 are arranged in the circumferential direction of the base 1, the push rod driving mechanism 4 is arranged in the installation cavity 10, a movable push rod 42 is arranged in the push rod driving mechanism 4, and the push rod 42 is rotatably connected with the connecting rods 5.
Further, the push rod driving mechanism 4 further comprises a push rod mounting seat 41, a sealing ring 43 and a spring 44, the push rod mounting seat 41 is fixedly mounted on the mounting cavity 10 of the base 1, a central movable cavity is formed in the push rod mounting seat 41, one end of the push rod 42 is mounted in the central movable cavity through the sealing ring 43, the other end of the push rod 42 extends out of the central movable cavity and is rotatably connected with the connecting rod 5, the spring 44 is sleeved on the periphery of the push rod mounting seat 41, and two ends of the spring 44 respectively abut against the push rod mounting seat 41 and the sealing ring 43.
Further, the outer periphery of the push rod mounting seat 41 is provided with a stepped groove, an annular cavity capable of accommodating a spring 44 is formed between the stepped groove and the inner wall of the mounting cavity 10, the spring 44 is sleeved in the annular cavity, one end of the spring 44 abuts against the stepped groove of the push rod mounting seat 41, and the other end abuts against the sealing ring 43. The spring can ensure that the pressing claw and other parts are positioned at the opening position when no workpiece 100 exists, and feeding and discharging are convenient.
Further, a first sealing ring is arranged between the inner wall of the sealing ring 43 and the push rod 42, a second sealing ring is arranged between the outer wall of the sealing ring 43 and the central movable cavity, the sealing ring 43 is installed at the end part of the push rod 42 through a first bolt 421 and a gasket 422, and the sealing ring is additionally arranged, so that the air tightness can be improved, and air leakage is avoided.
Further, a plurality of air inlet channels are provided in the base 1, a plurality of air inlet holes 31 are provided in the inner cavity of the pull plug 3, the air inlet holes 31 are communicated with the air inlet channels, the sealing ring 43 divides the central movable cavity in the push rod mounting seat 41 into two chambers, wherein a chamber facing away from the push rod 42 is communicated with the air inlet holes 31 through the air inlet channels. An air inlet hole is added to the inner cavity of the pull bolt, air is introduced through the air inlet hole when the pull bolt starts to rotate, so that the push rod 42 moves upwards, and the pressing claw 7 can be in a state of pressing the workpiece 100 when the pull bolt starts to rotate, and the stability of the device when the pull bolt rotates is ensured.
Further, an oil seal 411 is arranged between the push rod mounting seat 41 and the push rod 42, and the inner ring of the oil seal 411 is provided with a V-shaped sealing lip tightly matched with the outer wall of the push rod 42, so that the tightness of connection is improved.
Further, a limiting protruding portion 53 is disposed at one end of the pressing claw 7, which is used for installing the connecting rod 5, the pressing claw 7 is installed below the limiting protruding portion 53 in a swingable manner through a connecting piece 70, a limiting plane 531 is disposed on one side, facing the pressing claw 7, of the limiting protruding portion 53, and an outer protruding arc-shaped face 71 abutting against the limiting plane 531 is disposed on one side, facing the limiting plane 531, of the pressing claw 7. The presser finger can swing left and right to ensure effective contact of the presser finger with the workpiece 100.
Further, a mounting seat 21 is mounted on one side of the chuck body 2, the connecting rod 5 is arranged on the mounting seat 21 capable of swinging through a fixing pin 51, and the connection position of the push rod 42 and the connecting rod 5 is located between the balancing weight 6 and the fixing pin 51.
Further, the connecting rod 5 is provided with a waist hole 52, and the push rod 42 is rotatably connected with the waist hole 52 on the connecting rod 5 through a guide pin 421.
Further, a flange 11 is mounted on the rear side of the base 1, and the base 1 is mounted to a machine tool through the flange 11.
The working process of the invention comprises the following steps:
according to the special centrifugal force compensation device for the numerical control equipment chuck, in the using process, a workpiece 100 is mounted on a chuck body 2, then clamping force is provided for the chuck body 2 through a pull bolt 3 to clamp the workpiece 100, when the chuck starts to rotate, air is firstly introduced through an air inlet hole 31, a push rod 42 moves upwards, and a pressing claw 7 can be in a state of pressing the workpiece 100; when the workpiece 100 rotates at a high speed, under the action of the balancing weight 6, the push rod 42 is in an upward moving state, and the end, provided with the pressing claw 7, of the connecting rod 5 is driven to press inwards, so that the pressing claw 7 compresses the workpiece 100; when the rotation is stopped, the air is discharged through the air intake hole 31, and the push rod 42 is moved down by the spring 44 to loosen the work. The whole machining process pressing claw can always press the workpiece, so that the centrifugal force of the workpiece is effectively reduced, the flying risk is reduced, and the service life of the chuck is simultaneously solved.
The above embodiments are illustrative of the present invention, and not limiting, and any simple modifications of the present invention fall within the scope of the present invention.
Claims (4)
1. A special centrifugal force compensation device of numerical control equipment chuck, its characterized in that: the chuck comprises a base (1), a chuck body (2), a pull bolt (3), a push rod driving mechanism (4), a connecting rod (5), a balancing weight (6) and a pressing claw (7), wherein the chuck body (2) is arranged at the front side of the base (1), the pull bolt (3) is arranged at the center of the base (1), one end of the pull bolt (3) is connected with the chuck body (2) to provide clamping force for the chuck body (2), a plurality of connecting rods (5) capable of swinging are arranged at the periphery of the chuck body (2), the balancing weight (6) is arranged at one end of each connecting rod (5), the pressing claw (7) is arranged at the other end of each connecting rod, a plurality of installation cavities (10) which are respectively in one-to-one correspondence with the connecting rods (5) are arranged in the circumference of the base (1), the push rod driving mechanism (4) is arranged in the installation cavities (10), and movable push rods (42) are arranged in the push rod driving mechanism (4), and the push rods (42) are rotatably connected with the connecting rods (5). The push rod driving mechanism (4) further comprises a push rod mounting seat (41), a sealing ring (43) and a spring (44), wherein the push rod mounting seat (41) is fixedly mounted on the mounting cavity (10) of the base (1), a central movable cavity is formed in the push rod mounting seat (41), one end of the push rod (42) is mounted in the central movable cavity through the sealing ring (43), the other end of the push rod (42) extends out of the central movable cavity and is rotatably connected with the connecting rod (5), the periphery of the push rod mounting seat (41) is sleeved with the spring (44), and two ends of the spring (44) are respectively abutted against the push rod mounting seat (41) and the sealing ring (43); a first sealing ring is arranged between the inner wall of the sealing ring (43) and the push rod (42), and a second sealing ring is arranged between the outer wall of the sealing ring (43) and the central movable cavity; an oil seal (411) is arranged between the push rod mounting seat (41) and the push rod (42), and the inner ring of the oil seal (411) is provided with a V-shaped sealing lip which is tightly matched with the outer wall of the push rod (42); one side of the chuck body (2) is provided with a mounting seat (21), the connecting rod (5) is arranged on the mounting seat (21) capable of swinging through a fixing pin (51), and the connecting position of the push rod (42) and the connecting rod (5) is positioned between the balancing weight (6) and the fixing pin (51); one end of a pressing claw (7) used for being installed of the connecting rod (5) is provided with a limiting protruding portion (53), the pressing claw (7) is installed below the limiting protruding portion (53) in a swinging mode through a connecting piece (70), one side, facing the pressing claw (7), of the limiting protruding portion (53) is provided with a limiting plane (531), and one side, facing the limiting plane (531), of the pressing claw (7) is provided with an outer protruding arc-shaped surface (71) propped against the limiting plane (531); a plurality of air inlet channels are arranged in the base (1), a plurality of air inlet holes (31) communicated with the air inlet channels are arranged in the inner cavity of the pull bolt (3), the central movable cavity in the push rod mounting seat (41) is divided into two cavities by the sealing ring (43), and one cavity facing away from the push rod (42) is communicated with the air inlet holes (31) through the air inlet channels; during the use process, the workpiece (100) is mounted on the chuck body (2), then the chuck body (2) is provided with clamping force by the pull bolt (3) to clamp the workpiece (100), when the chuck starts to rotate, air is firstly introduced through the air inlet hole (31), the push rod (42) moves upwards, and the pressing claw (7) can be in a state of pressing the workpiece (100); when the workpiece rotates at a high speed, under the action of the balancing weight (6), the push rod (42) is in an upward moving state, and one end of the connecting rod (5) provided with the pressing claw (7) is driven to press inwards, so that the pressing claw (7) presses the workpiece (100); when the rotation is stopped, the air is discharged through the air inlet hole (31), and the spring (44) enables the push rod (42) to move downwards to loosen the workpiece.
2. The centrifugal force compensation device special for a numerical control equipment chuck as set forth in claim 1, wherein: the periphery of the push rod mounting seat (41) is provided with a stepped groove, an annular cavity capable of accommodating a spring (44) is formed between the stepped groove and the inner wall of the mounting cavity (10), the spring (44) is sleeved in the annular cavity, one end of the spring is abutted against the stepped groove of the push rod mounting seat (41), and the other end of the spring is abutted against the sealing ring (43).
3. The centrifugal force compensation device special for a numerical control equipment chuck as set forth in claim 1, wherein: waist holes (52) are formed in the connecting rods (5), and the push rods (42) are rotatably connected with the waist holes (52) in the connecting rods (5) through guide pins (421).
4. The centrifugal force compensation device special for a numerical control equipment chuck as set forth in claim 1, wherein: a flange plate (11) is arranged on the rear side of the base (1), and the base (1) is arranged on a machine tool through the flange plate (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110717100.6A CN113547140B (en) | 2021-06-28 | 2021-06-28 | Centrifugal force compensation device special for numerical control equipment chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110717100.6A CN113547140B (en) | 2021-06-28 | 2021-06-28 | Centrifugal force compensation device special for numerical control equipment chuck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113547140A CN113547140A (en) | 2021-10-26 |
| CN113547140B true CN113547140B (en) | 2023-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110717100.6A Active CN113547140B (en) | 2021-06-28 | 2021-06-28 | Centrifugal force compensation device special for numerical control equipment chuck |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114951730B (en) * | 2022-06-15 | 2023-03-24 | 广东鑫光智能系统有限公司 | Automatic eccentric part counterweight clamp, automatic oil pump body production line and machining process |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61159305A (en) * | 1984-12-18 | 1986-07-19 | Fujitsu Ltd | Workpiece holding device of grinding machine |
| CN2717646Y (en) * | 2004-08-05 | 2005-08-17 | 淄博德富利轻工制品有限公司 | Ceramic moulding die fixing device |
| DE502006001824D1 (en) * | 2006-03-22 | 2008-11-27 | Smw Autoblok Spannsysteme Gmbh | Diaphragm chuck |
| DE102007044297A1 (en) * | 2007-09-17 | 2009-03-19 | Röhm Gmbh | Method and device for centrifugal force compensation in a machine tool |
| CN203171001U (en) * | 2012-12-28 | 2013-09-04 | 大连瓦特重机床有限公司 | Centrifugal chuck |
| CN104400049A (en) * | 2014-11-24 | 2015-03-11 | 常州市威玛泰精密工具有限公司 | Automatic clamping chuck |
| CN104772493B (en) * | 2015-03-24 | 2017-02-01 | 浙江大学 | External centrifugal force compensating mechanism for chuck |
| CN206253666U (en) * | 2016-12-06 | 2017-06-16 | 天津市威斯曼光学仪器有限公司 | Numerical control Vehicle Processing two-jaw(ed)chuck self-alignment cramping arrangement |
| CN210550431U (en) * | 2019-08-24 | 2020-05-19 | 浙江华泰电子有限公司 | Automatic heart-shaped chuck |
| CN211249256U (en) * | 2019-12-04 | 2020-08-14 | 徐州华庆机械科技有限公司 | Clamping auxiliary device for machine tool |
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2021
- 2021-06-28 CN CN202110717100.6A patent/CN113547140B/en active Active
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