CN112157570B - Longitudinal telescopic polishing tool - Google Patents

Longitudinal telescopic polishing tool Download PDF

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Publication number
CN112157570B
CN112157570B CN202011039878.8A CN202011039878A CN112157570B CN 112157570 B CN112157570 B CN 112157570B CN 202011039878 A CN202011039878 A CN 202011039878A CN 112157570 B CN112157570 B CN 112157570B
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Prior art keywords
connecting plate
lower connecting
arm
upper connecting
plate
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CN202011039878.8A
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CN112157570A (en
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饶志敏
刘海涛
万勇建
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Institute of Optics and Electronics of CAS
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Institute of Optics and Electronics of CAS
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B29/00Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
    • B24B29/02Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces
    • B24B29/04Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces for rotationally symmetrical workpieces, e.g. ball-, cylinder- or cone-shaped workpieces
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse 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)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

The invention provides a longitudinal telescopic polishing tool, comprising: the polishing device comprises a polishing disc, a pin ball head connecting piece, a connecting cover plate, a lower connecting bolt, a lower locking nut, a lower connecting arm, a connecting bolt, a locking nut, an upper connecting arm, an upper connecting bolt, an upper locking nut, an upper connecting plate and the like. The upper connecting plate and the lower connecting plate are connected through three pairs of upper connecting arms and lower connecting arms which are symmetrically and equally divided according to the axis and connecting bolts of the upper connecting arms and the lower connecting plates, and the longitudinal telescopic motion of the upper connecting plate and the lower connecting plate is realized by utilizing a connecting revolute pair between the parts.

Description

Longitudinal telescopic polishing tool
Technical Field
The invention belongs to the field of large-caliber optical processing, and particularly relates to a longitudinal telescopic polishing tool which is used for polishing the surface of an optical part with one meter or more calibers.
Background
At present, the application of large-caliber optical systems is more and more extensive, wherein the caliber of a primary mirror of an optical system designed in China reaches four meters. The processing of large-diameter optical parts having a diameter of more than one meter takes a long time. In order to improve the efficiency of machining large-diameter optical components, the size and weight of the grinding or polishing tool used for such optical components are relatively large. Particularly, when a polishing tool which applies pressure by means of self weight is used for processing, the polishing tool has higher requirements on several aspects, the first requirement is that the polishing tool has a certain range of longitudinal floating distance to meet the requirements of the safety of the tool in the pressure application process and the adaptability to a processing surface, the second requirement is that the polishing tool has high capacity of bearing the weight of a polishing disc, the third requirement is that the polishing tool has high structural rigidity, the structural deformation of the polishing tool caused by overlarge friction force when the polishing disc rotates on a mirror surface is avoided, and the fourth requirement is that the friction is small when the polishing tool longitudinally stretches out and draws back, so that the phenomenon of clamping stagnation caused by large friction force due to structural characteristics is avoided. Therefore, the telescopic polishing tool which can meet the requirements and has a simple and compact structure is designed, and the telescopic polishing tool has great significance for processing large-caliber optical parts by adopting a dead-weight polishing tool.
Disclosure of Invention
The invention provides a telescopic polishing tool which meets the requirements and has a simple and compact structure, in order to solve the requirements of large longitudinal telescopic distance range, high structural rigidity, strong bearing capacity and small friction force in the telescopic process required by a large-size heavy polishing tool adopted in the processing of large-caliber optical parts.
The technical scheme adopted by the invention for solving the problems is as follows: a longitudinally expanding polishing tool, comprising: polishing dish, pin bulb connecting piece, connection cover plate, lower connecting bolt, lock nut down, lower linking arm, connecting bolt, lock nut, go up the linking arm, go up connecting bolt, go up lock nut and upper junction plate, wherein:
the upper connecting plate is connected with the upper connecting arm through an upper connecting bolt and an upper locking nut; the lower connecting plate is connected with the lower connecting arm through a lower connecting bolt and a lower connecting nut; the lower connecting arm and the upper connecting arm are connected and fixed through a connecting bolt and a locking nut; the upper connecting plate and the lower connecting plate are connected by three connecting arm mechanisms which are equally divided by 120 degrees, and the large-amplitude longitudinal telescopic motion of the upper connecting plate and the lower connecting plate is realized by utilizing the revolute pairs of the connecting screws among the parts;
the lower connecting plate is connected with the polishing disc through a pin ball head connecting piece, a connecting cover plate and the polishing disc; the upper connecting plate is connected with the rotating main shaft through a reserved threaded connector to transfer rotary motion.
The principle of the invention is as follows: the invention mainly comprises a longitudinal telescopic mechanism composed of an upper connecting plate, a lower connecting plate and a connecting arm, and a polishing disk connected with the lower connecting plate, and specifically comprises: polishing dish, pin bulb connecting piece, connecting cover plate, lower connecting bolt, lower lock nut, lower linking arm, connecting bolt, lock nut, go up linking arm, go up connecting bolt, go up lock nut and upper junction plate etc.. The upper connecting plate and the lower connecting plate are connected by three connecting arm mechanisms which are equally divided by 120 degrees. The connection form of the single-pair connecting arm mechanism is as follows: the upper connecting plate is connected with the upper connecting arm through an upper connecting bolt and an upper locking nut; the lower connecting plate is connected with the lower connecting arm through a lower connecting bolt and a lower connecting nut; the lower connecting arm and the upper connecting arm are connected and fixed through the connecting bolt and the locking nut. The lower connecting plate is connected with a pin ball head connecting piece through a screw and then connected with the polishing disc, and the connecting cover plate is fixed on the polishing disc through a screw to prevent the polishing disc from falling off from the pin ball head connecting piece. And a threaded interface is reserved on the upper connecting plate and is used for being connected with the transmission main shaft to drive the polishing disc to rotate.
The invention has the beneficial effects that: the upper connecting plate and the lower connecting plate are connected by the trisected connecting arms, so that the structure is simple and compact, and the reliability and the stability of the structure are favorably ensured; by adopting the structure, the axial telescopic distance range between the upper connecting plate and the lower connecting plate is favorably increased, the bearing capacity for bearing the weight of the polishing disc is favorably increased, the rigidity of the whole structure of the polishing tool is favorably increased, the friction of a telescopic movable kinematic pair is favorably reduced, and the safety and the stress stability of the polishing process are favorably enhanced.
Drawings
FIG. 1 is an elevational view (including a partial sectional view) of the overall construction of a longitudinally telescoping polishing tool of the present invention;
FIG. 2 is an oblique view of the overall structure of a longitudinally-telescoping polishing tool of the present invention;
FIG. 3 is a left side view of a longitudinally telescoping polishing tool of the present invention;
fig. 4 is a top view of a longitudinally telescoping polishing tool of the present invention.
The reference numbers in the figures mean: 1 is the polishing dish, 2 is pin bulb connecting piece, 3 is connection cover plate, 4 is lower connecting plate, 5 is connecting bolt down, 6 is lock nut down, 7 is lower linking arm, 8 is connecting bolt, 9 is lock nut, 10 is last linking arm, 11 is last connecting bolt, 12 is last lock nut, 13 is the upper junction plate.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
The embodiment is described with reference to fig. 1 to 3, and relates to a longitudinal telescopic polishing tool, wherein an upper connecting plate and a lower connecting plate are respectively connected with a longitudinal telescopic mechanism formed by an upper connecting arm and a lower connecting arm, the lower connecting plate is connected with a polishing disk, and the upper connecting plate is connected with a driving spindle, the longitudinal telescopic polishing tool specifically comprises: polishing dish 1, pin bulb connecting piece 2, connecting cover plate 3, lower connecting plate 4, lower connecting bolt 5, lower lock nut 6, lower linking arm 7, connecting bolt 8, lock nut 9, go up linking arm 10, go up connecting bolt 11, go up lock nut 12 and upper junction plate 13. The upper connecting plate 13 and the lower connecting plate 4 are connected by three connecting arm mechanisms which are equally divided by 120 degrees. The connection form of the single-pair connecting arm mechanism is as follows: the upper connecting plate 13 is connected with the upper connecting arm 10 through an upper connecting bolt 11 and an upper locking nut 12; the lower connecting plate 4 is connected with a lower connecting arm 7 through a lower connecting bolt 5 and a lower connecting nut 6; the lower connecting arm 7 and the upper connecting arm 10 are fixedly connected through a connecting bolt 8 and a locking nut 9; the lower connecting plate 4 is connected with the pin ball head connecting piece 2 through a screw and then connected with the polishing disc 1, and the connecting cover plate 3 is fixed on the polishing disc 1 through a screw to prevent the polishing disc 1 from falling off from the pin ball head connecting piece 2. And a threaded interface is reserved on the upper connecting plate 13 and is used for connecting a transmission main shaft.
The technical effects of the embodiment are as follows: the upper connecting plate and the lower connecting plate are connected through three connecting arm mechanisms which are equally divided by 120 degrees, the whole structure has high rigidity, and high shearing moment in the processing process can be borne; the single-pair connecting arm mechanism consists of an upper connecting arm, a lower connecting arm, a connecting bolt and a connecting bolt, wherein the connecting bolt provides a cylindrical revolute pair, so that the telescopic distance range between the upper connecting plate and the lower connecting plate is large, the telescopic process is completed by the cylindrical revolute pair to ensure small friction, the longitudinal telescopic between the upper connecting plate and the lower connecting plate is flexible, and the single-pair connecting arm mechanism has very high longitudinal bearing capacity.
The working principle of the invention is as follows: the structure of design can realize vertical flexible by a wide margin, and lower connecting plate passes through pin bulb connecting piece switching polishing dish, goes up to connect and predetermines the hickey and is connected and drive the whole rotation with the transmission main shaft. The working principle of the invention is as follows: the upper connecting plate and the lower connecting plate are connected through three pairs of connecting arm mechanisms which are axially symmetrically and equally divided. The upper connecting arm and the lower connecting arm are respectively connected with the upper connecting plate and the lower connecting plate through connecting bolts and locking nuts, the connecting bolts are provided with revolute pairs, and the upper connecting arm and the lower connecting arm can rotate around the connecting bolts on the upper connecting plate and the lower connecting plate. The upper connecting arm and the lower connecting arm are connected with each other through the connecting bolt and the locking nut, the connecting bolt is provided with a rotating pair, and the upper connecting arm and the lower connecting arm can rotate around the connecting bolt. The upper and lower connecting plates realize large-amplitude longitudinal telescopic motion through the upper and lower connecting arms and three revolute pairs connected with the upper and lower connecting arms.

Claims (1)

1. A longitudinally telescoping burnishing tool, characterized in that: the problem of the required vertical flexible distance scope of the heavy burnishing tool of the jumbo size that adopts in the processing of heavy-duty optical parts is big, structural rigidity is high, bearing capacity is strong and the demand that flexible process frictional force is little is solved, this burnishing tool includes: polishing dish (1), pin bulb connecting piece (2), connection cover plate (3), lower connecting plate (4), connecting bolt (5) down, lock nut (6) down, lower linking arm (7), connecting bolt (8), lock nut (9), go up linking arm (10), go up connecting bolt (11), go up lock nut (12) and upper junction plate (13), wherein:
the upper connecting plate (13) is connected with the upper connecting arm (10) through an upper connecting bolt (11) and an upper locking nut (12); the lower connecting plate (4) is connected with a lower connecting arm (7) through a lower connecting bolt (5) and a lower connecting nut (6); the lower connecting arm (7) and the upper connecting arm (10) are connected and fixed through a connecting bolt (8) and a locking nut (9); the upper connecting plate (13) and the lower connecting plate (4) are connected by three connecting arm mechanisms which are equally divided by 120 degrees, and the large-amplitude longitudinal telescopic motion of the upper connecting plate (13) and the lower connecting plate (4) is realized by utilizing the revolute pairs of the connecting screws among the parts;
the lower connecting plate (4) is connected with the polishing disc (1) through a pin ball head connecting piece (2), a connecting cover plate (3) and the polishing disc; the upper connecting plate (13) is connected with the rotating main shaft through a reserved threaded interface to transfer rotary motion;
the upper connecting plate (13) and the lower connecting plate (4) are connected through three connecting arm mechanisms which are equally divided by 120 degrees, the rigidity of the whole structure is high, and high shear moment in the machining process can be borne; the single-pair connecting arm mechanism consists of an upper connecting arm (10), a lower connecting arm (7), a connecting bolt (8) and a locking nut (9), the connecting bolt (8) provides a cylindrical rotating pair, so that the telescopic distance range between the upper connecting plate (10) and the lower connecting plate (7) is large, the telescopic process is completed by the cylindrical rotating pair, the friction is small, the longitudinal telescopic between the upper connecting plate (13) and the lower connecting plate (4) is flexible, and the single-pair connecting arm mechanism has high longitudinal bearing capacity;
the longitudinal telescopic polishing tool can realize large-amplitude longitudinal telescopic, the lower connecting plate is connected with the polishing disc through the pin and ball head connecting piece, and the upper connecting plate is connected with the preset threaded interface and connected with the transmission main shaft and drives the whole body to rotate; the working mode of the longitudinal telescopic polishing tool is as follows: the upper connecting plate and the lower connecting plate are connected through three pairs of connecting arm mechanisms which are axially symmetrically equally divided; the upper connecting arm and the lower connecting arm are respectively connected with the upper connecting plate and the lower connecting plate through connecting bolts and locking nuts, the connecting bolts are provided with rotating pairs, and the upper connecting arm and the lower connecting arm can rotate around the connecting bolts on the upper connecting plate and the lower connecting plate; the upper connecting arm and the lower connecting arm are connected through a connecting bolt and a locking nut, a rotating pair is designed on the connecting bolt, and the upper connecting arm and the lower connecting arm can rotate around the connecting bolt; the upper connecting plate and the lower connecting plate realize large-amplitude longitudinal telescopic motion through the upper connecting arm and the lower connecting arm and three revolute pairs connected with the upper connecting arm and the lower connecting arm;
the longitudinal telescopic polishing tool adopts trisected connecting arms to connect the upper connecting plate and the lower connecting plate, has a simple and compact structure and is beneficial to ensuring the reliability and the stability of the structure; by adopting the structure, the axial telescopic distance range between the upper connecting plate and the lower connecting plate is favorably increased, the bearing capacity for bearing the weight of the polishing disc is favorably increased, the rigidity of the whole structure of the polishing tool is favorably increased, the friction of a telescopic movable kinematic pair is favorably reduced, and the safety and the stress stability of the polishing process are favorably enhanced.
CN202011039878.8A 2020-09-28 2020-09-28 Longitudinal telescopic polishing tool Active CN112157570B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN112157570B true CN112157570B (en) 2023-03-31

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CN103011007A (en) * 2012-12-18 2013-04-03 南通市通润汽车零部件有限公司 Fork shrinkage type screw jack
CN103240729B (en) * 2013-04-23 2015-04-29 天津大学 Telescopic space triple-translation parallel manipulator
CN103286659B (en) * 2013-05-22 2016-02-24 北京理工大学 A kind of eccentric rotation type air pressure force heavy caliber conformal burnishing device
CN104019335A (en) * 2014-06-09 2014-09-03 雍自威 Retractable displayer adjusting frame
CN204183547U (en) * 2014-10-10 2015-03-04 上海沃迪自动化装备股份有限公司 A kind of parallel robot of four-bar linkage
CN104308835A (en) * 2014-10-24 2015-01-28 天津大学 Plane-symmetry three-rotating parallel connection mechanism
CN106737248A (en) * 2015-11-25 2017-05-31 龚福鑫 Elastic polished disk
CN205600709U (en) * 2015-12-19 2016-09-28 华南理工大学广州学院 Teaching parallel robot
CN205600708U (en) * 2015-12-19 2016-09-28 华南理工大学广州学院 Teaching parallel robot
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