CN108818162B - Novel vibration excitation grinding and polishing tool head device - Google Patents

Novel vibration excitation grinding and polishing tool head device Download PDF

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Publication number
CN108818162B
CN108818162B CN201810689010.9A CN201810689010A CN108818162B CN 108818162 B CN108818162 B CN 108818162B CN 201810689010 A CN201810689010 A CN 201810689010A CN 108818162 B CN108818162 B CN 108818162B
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China
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vibration
grinding
tool head
connecting base
polishing
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CN108818162A (en
Inventor
郭宗福
王文
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Hangzhou Dianzi University
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Hangzhou Dianzi University
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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
    • B24B1/00Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
    • B24B1/04Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes subjecting the grinding or polishing tools, the abrading or polishing medium or work to vibration, e.g. grinding with ultrasonic frequency
    • 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
    • B24B13/00Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B24B13/01Specific tools, e.g. bowl-like; Production, dressing or fastening of these tools
    • 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
    • B24B37/00Lapping machines or devices; Accessories
    • B24B37/11Lapping tools
    • 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
    • B24B41/00Component parts such as frames, beds, carriages, headstocks
    • B24B41/04Headstocks; Working-spindles; Features relating thereto

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

A novel vibration excitation grinding and polishing tool head device comprises a connecting base, a vibration source, a mounting cap, a connecting sleeve, a grinding element or a polishing element, a flexible isolation pad and a vibration sensor. The upper end of the connecting base is fixedly connected with the lower end of the inner hole of the connecting sleeve, the mounting cap is fixedly connected with the upper end of the inner hole of the connecting sleeve, the vibration source is arranged in the mounting cap, the upper surface of the vibration source is fixedly connected with the lower surface of the upper end of the mounting cap, the lower surface of the isolating pad is fixedly connected with the upper surface of the upper end of the mounting cap, the lower surface of the grinding element or the polishing element is fixedly connected with the upper surface of the isolating pad, and the vibration sensor is. The connecting base is provided with a lead perforation. The invention has the advantages of reasonable structure, good working performance, low operation cost and wider application occasions and prospects.

Description

Novel vibration excitation grinding and polishing tool head device
Technical Field
The invention relates to a novel vibration excitation grinding and polishing tool head device, and belongs to the technical field of grinding and polishing equipment. Background
The grinding and polishing technology is a common processing means for realizing ultra-precise geometric dimension, ultra-accurate surface shape precision and ultra-smooth surface, and is also an optimal method for eliminating subsurface damage caused by processing. The grinding and polishing processing has wide application range and can be used for ultra-precision processing of various complex molded surfaces. Particularly, the grinding and polishing process plays an irreplaceable role in the processing of various complex-profile parts made of difficult-to-process materials used in the fields of optics and electronic information.
The traditional grinding and polishing processing technology mostly adopts a low-speed processing mode of a loose-grain abrasive material, has the defects of low precision retentivity, low processing speed and the like, and greatly influences the productivity of precision parts, particularly in the processing of large optical free-form surface parts, the grinding and polishing processing time accounts for most of the whole processing time, and the time for processing one product is less, namely hundreds of hours, and more, namely months.
For the slow annular grinding and polishing mode widely used at present, the motion mode is mostly the rotation of the grinding disc, the rotation and revolution of the workpiece relative to the grinding disc, although the process is relatively simple, the defects that the removal function is not ideal, the surface type of the workpiece is single, the workpiece is difficult to adapt to the processing of a complex curved surface, the size of the workpiece, the rotating speed of the workpiece and the rotating speed of the grinding disc are strictly limited, and the like exist; for the airbag polishing equipment newly adopted abroad, the structure is complex, the revolving radius of the abrasive particles on the ball-head-shaped polishing head is small, the grinding and polishing speed is low, the processing efficiency is not obviously improved, although the polishing equipment is suitable for processing complex-profile parts, the efficiency is low when large and medium-sized ultra-precise parts are processed, and the processing cost is very high when the polishing equipment is used.
And the existing optical element polishing processing tool head device is adopted, in order to realize the approximately Gaussian removal function meeting the deterministic polishing requirement of the optical element, the motion mode comprises space position motion and polishing head motion, for example, an air bag polishing machine tool of Zeeko corporation in England achieves 7-axis control in order to obtain the approximately Gaussian removal function. The more the number of axes, the higher the performance requirements of the machine tool and the higher the cost.
Disclosure of Invention
The invention mainly aims to provide a novel vibration excitation grinding and polishing tool head device, which adopts a frequency-adjustable vibration source to carry out excitation motion on a polishing unit, can realize computer control, can reduce the number of control shafts for the motion of a polishing head, and has the characteristics of improving the grinding and polishing speed, avoiding the consolidation of grinding abrasive particles, having complex grinding and polishing track, being controllable in removal function and the like.
The technical scheme adopted by the invention is as follows: a novel vibration excitation grinding and polishing tool head device comprises a connecting base, a vibration source, a mounting cap, a connecting sleeve, a grinding element or a polishing element, a flexible isolation pad and a vibration sensor. The upper end of the connecting base is fixedly connected with the lower end of the inner hole of the connecting sleeve, the mounting cap is fixedly connected with the upper end of the inner hole of the connecting sleeve, the vibration source is arranged in the mounting cap, the upper surface of the vibration source is fixedly connected with the lower surface of the upper end of the mounting cap, the lower surface of the isolating pad is fixedly connected with the upper surface of the upper end of the mounting cap, the lower surface of the grinding element or the polishing element is fixedly connected with the upper surface of the isolating pad, and the vibration sensor is. The connecting base is provided with a lead perforation.
The grinding elements are here grinding pellets or sandpaper and the polishing elements are polishing pads. In addition, the mounting cap can be designed into different shapes according to requirements, for example, the upper surface of the upper end of the mounting cap can be designed into a spherical surface, and the grinding element or the polishing element is fixedly connected with a flexible isolation pad fixed on the upper surface of the upper end of the mounting cap in an embedding or sticking mode, wherein the flexible isolation pad is made of polyurethane or rubber. In addition, the vibration source is connected with the computer, and the vibration frequency can be controlled and adjusted to ensure that the polishing quality, the polishing efficiency and the operation cost meet the requirements. During practical use, the connecting base is arranged on a Z-axis sliding table or a main shaft unit of the machine tool, and the power line and the sensor signal line are connected with the vibration source and the vibration sensor through corresponding lead through holes on the base. Under the restriction of the connecting sleeve, the vibration source drives the mounting cap to vibrate so as to drive the grinding element or the polishing element fixed on the mounting cap to swing or vibrate with multiple degrees of freedom, and the vibration sensor carries out synchronous detection so as to realize closed-loop control on the vibration state of the novel vibration excitation grinding and polishing tool head device. Compared with the prior art, the invention solves the requirement on the rotation of the polishing head, reduces the number of control shafts, avoids the influence of low removal rate of a rotation center and temperature aggregation, and simplifies the structure of the device. The invention can realize the translational and dynamic polishing mode of manual polishing; a module matrix can be built on the basis of the module, and the polishing of large-size and complex surfaces is realized; various processing modes such as grinding, polishing and the like can be carried out. The invention has the advantages of reasonable structure, good working performance and low operation cost.
Preferably, the upper end of the connecting base is a cylinder, the edge of the lower end of the connecting base is positioned outside the connecting sleeve, the connecting base is provided with a through hole for conducting the upper end surface of the upper end of the connecting base and the lower end surface of the lower end of the connecting base, and the vibration sensor is fixed on the hole wall of the through hole. Preferably, the lower end of the connecting base is a cylinder coaxial with the upper end of the connecting base, and the through hole is a cylinder hole coaxial with the upper end of the connecting base. This preferred scheme, rational in infrastructure, manufacturing is easy, is favorable to reducing the processing cost.
Preferably, the connecting sleeve is a corrugated tube or a thin-walled plastic tube. The preferred scheme has the advantages of easily obtained materials and low use and maintenance cost.
Preferably, the vibration source comprises a motor and an eccentric mass. The upper surface of the shell of the motor forms the upper surface of the vibration source, and the eccentric block is fixed at the lower end of the output shaft of the motor. The preferred scheme has the advantages of simple structure, use and maintenance, large exciting force, long service life, economy and practicality.
Preferably, the vibration source is an ultrasonic vibration device. The preferred scheme has the advantages of easy adjustment and change of the vibration frequency and wide adaptability, and the invention has wider application occasions and prospects.
In conclusion, the beneficial effects of the invention are as follows: compared with the prior art, the invention solves the requirement on the rotation of the polishing head, reduces the number of control shafts, avoids the influence of low removal rate of a rotation center and temperature aggregation, and simplifies the structure of the device. The invention can realize the translational and dynamic polishing mode of manual polishing; a module matrix can be built on the basis of the module, and the polishing of large-size and complex surfaces is realized; various processing modes such as grinding, polishing and the like can be carried out. The invention has the advantages of reasonable structure, good working performance and low operation cost. When the vibration source consists of the motor and the eccentric block, the vibration generator has the advantages of simple structure, use and maintenance, large exciting force, long service life, economy and practicability; when the vibration source is an ultrasonic vibration device, the vibration frequency is easy to adjust and change, the adaptability is wide, and the invention has wider application occasions and prospects.
Drawings
FIG. 1: the invention has a structure schematic diagram;
in the figure: the vibration sensor comprises a connecting base 1, an upper end 1.1 of the connecting base, a lower end 1.2 of the connecting base, a through hole 1.3, a vibration source 2, a motor 2.1, an eccentric block 2.2, a mounting cap 3, a connecting sleeve 4, a grinding element or polishing element 5, a flexible isolation pad 6 and a vibration sensor 7.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
The first embodiment is as follows:
as shown in FIG. 1, the invention comprises a connecting base 1, a vibration source 2, a mounting cap 3, a connecting sleeve 4, a grinding element or polishing element 5, a flexible isolation pad 6 and a vibration sensor 7. Vibration source 2 links to each other with the computer, adapter sleeve 4 is flexible adapter sleeve, connect the lower extreme of upper end 1.1 and the 4 holes of adapter sleeve of base 1 and link firmly, the upper end of mounting cap 3 and the 4 holes of adapter sleeve links firmly, vibration source 2 is established in mounting cap 3, the upper surface of vibration source 2 and the lower surface of the upper end of mounting cap 3 link firmly, the lower surface of barrier pad 6 and the upper surface of the upper end of mounting cap 3 link firmly, the lower surface of grinding element or polishing element 5 and the upper surface of barrier pad 6 link firmly, vibration sensor 7 fixes on connecting base 1, it perforates to be equipped with the wire on connecting base 1.
Preferably, the upper end 1.1 of the connection base 1 is a cylinder, the lower end 1.2 of the connection base 1 is a cylinder coaxial with the upper end 1.1 of the connection base, the connection base 1 is provided with a through hole 1.3 for conducting the upper end surface of the upper end 1.1 of the connection base 1 and the lower end surface of the lower end of the connection base 1, the through hole 1.3 is a cylindrical hole coaxial with the upper end 1.1 of the connection base 1, and the vibration sensor 7 is fixed on the hole wall of the through hole 1.3. The vibration source 2 comprises a motor 2.1 and an eccentric block 2.2; the upper surface of the casing of the motor 2.1 forms the upper surface of the vibration source 2, the eccentric mass 2.2 is fixed at the lower end of the output shaft of the motor 2.1, and the corresponding motor 2.1 and the vibration sensor 7 are electrically connected with a computer not shown in the figure through a lead wire passing through the through hole 1.3. The connecting sleeve 4 is a thin-walled plastic tube or a corrugated tube.
Example two:
the second embodiment is different from the first embodiment in that the vibration source 2 is an ultrasonic vibration device in the second embodiment.
The above embodiments are merely preferred embodiments of the present invention, and not intended to limit the structure and scope of the invention. Indeed, many equivalent variations in the shapes, constructions and design objectives of the devices according to the present invention are possible. Therefore, all equivalent changes in the shapes, structures and design objectives of the present invention are intended to be covered by the present invention, and all such equivalent changes are intended to be protected by the present invention.

Claims (7)

1. The utility model provides a novel vibration excitation grinding and polishing tool head device which characterized by: the device comprises a connecting base (1), a vibration source (2), a mounting cap (3), a connecting sleeve (4), a grinding element or polishing element (5), a flexible isolation pad (6) and a vibration sensor (7); the vibration source (2) is connected with a computer, the connecting sleeve (4) is a flexible connecting sleeve, the upper end (1.1) of the connecting base (1) is fixedly connected with the lower end of an inner hole of the connecting sleeve (4), the mounting cap (3) is fixedly connected with the upper end of the inner hole of the connecting sleeve (4), the vibration source (2) is arranged in the mounting cap (3), the upper surface of the vibration source (2) is fixedly connected with the lower surface of the upper end of the mounting cap (3), the lower surface of the isolation pad (6) is fixedly connected with the upper surface of the upper end of the mounting cap (3), the lower surface of the grinding element or polishing element (5) is fixedly connected with the upper surface of the isolation pad (6), the vibration sensor (7) is fixed on the connecting base (1), and a lead perforation is arranged on; during the in-service use, connect the pedestal mounting on lathe Z axle slip table or main shaft unit, power cord and sensor signal line are perforated through corresponding wire on the base and are connected with vibration source and vibration sensor, and under the restriction of adapter sleeve, thereby the vibration source drives the installation cap vibration and drives grinding element or the polishing component of fixing on the installation cap and carry out multi freedom swing or vibration, and vibration sensor then carries out synchronous detection so that realize realizing closed-loop control to the vibrational state of novel vibration excitation grinding and polishing instrument head device.
2. The novel vibration activated abrasive polishing tool head set of claim 1, wherein: the upper end (1.1) of connecting base (1) is the cylinder, and the lower extreme (1.2) edge of connecting base (1) is located outside adapter sleeve (4), is equipped with one on connecting base (1) and switches on the up end of connecting upper end (1.1) of base (1) and connects through-hole (1.3) of the lower terminal surface of the lower extreme of base (1), and vibration sensor (7) are fixed on the pore wall of through-hole (1.3).
3. The novel vibration activated abrasive polishing tool head set forth in claim 2 wherein: the lower end (1.2) of the connecting base (1) is a cylinder coaxial with the upper end (1.1) of the connecting base, and the through hole (1.3) is a cylindrical hole coaxial with the upper end (1.1) of the connecting base (1).
4. The novel vibration activated abrasive polishing tool head set of claim 1, wherein: the connecting sleeve (4) is a corrugated pipe.
5. The novel vibration activated abrasive polishing tool head set of claim 1, wherein: the connecting sleeve (4) is a thin-wall plastic pipe.
6. The novel vibration activated abrasive polishing tool head set of any one of claims 1 to 5 wherein: the vibration source (2) comprises a motor (2.1) and an eccentric block (2.2); the upper surface of the shell of the motor (2.1) forms the upper surface of the vibration source (2), and the eccentric block (2.2) is fixed at the lower end of the output shaft of the motor (2.1).
7. The novel vibration activated abrasive polishing tool head set of any one of claims 1 to 5 wherein: the vibration source (2) is an ultrasonic vibration device.
CN201810689010.9A 2018-06-28 2018-06-28 Novel vibration excitation grinding and polishing tool head device Active CN108818162B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810689010.9A CN108818162B (en) 2018-06-28 2018-06-28 Novel vibration excitation grinding and polishing tool head device

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Application Number Priority Date Filing Date Title
CN201810689010.9A CN108818162B (en) 2018-06-28 2018-06-28 Novel vibration excitation grinding and polishing tool head device

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CN108818162B true CN108818162B (en) 2020-05-29

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Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202894894U (en) * 2012-09-12 2013-04-24 浙江工业大学 Soft abrasive particle flow machining device of loading of ultrasonic shock excitation
CN103286682B (en) * 2013-05-08 2015-10-21 吉林大学 The Test specimen fixture of ultrasonic wave vibration assisted milling/polishing
CN105058254B (en) * 2015-08-12 2017-05-24 华侨大学 Large-size radial ultrasonic auxiliary end face grinding abrasive disk
CN105215796B (en) * 2015-09-23 2017-11-21 辽宁工业大学 One kind utilizes matching layer Combined piezoelectric vibrator high frequency ultrasound burnishing device and method
CN206393447U (en) * 2017-01-19 2017-08-11 东莞市凯保精密机械有限公司 The small-sized vibrations sander of airtight waterproof
CN206825119U (en) * 2017-04-12 2018-01-02 深圳市拍档科技有限公司 Pneumatic grinding mill

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