CN105690238A

CN105690238A - Vertical type adjustable ultrasonic vibration honing device

Info

Publication number: CN105690238A
Application number: CN201610241621.8A
Authority: CN
Inventors: 祝锡晶; 张小强; 崔学良; 成全; 赵韡
Original assignee: North University of China
Current assignee: North University of China
Priority date: 2016-04-19
Filing date: 2016-04-19
Publication date: 2016-06-22
Anticipated expiration: 2036-04-19
Also published as: CN105690238B

Abstract

The invention relates to ultrasonic vibration honing devices, in particular to a vertical type adjustable ultrasonic vibration honing device. The vertical type adjustable ultrasonic vibration honing device solves the problems that in the prior art, the structure is complex, the transmission efficiency is low, the machined size is single, and oilstone is not prone to being replaced. The vertical type adjustable ultrasonic vibration honing device comprises a floating mechanism, a collector ring and a honing head body. The honing head body comprise a ladder-shaped sleeve, and an ultrasonic transducer, an amplitude-change rod in a cone frustum shape, a bending vibration disc and flexibility rods which are sequentially connected from top to bottom are arranged in the sleeve; radial grooves are formed in the lower end face of the bending vibration disc, one flexibility rod with an oilstone strip fixed to the outer side of the lower end is placed in each radial groove, outer fixed rings of fixed paws are evenly distributed on the inner side of the disc, and inner fixed rings of the fixed paws are evenly distributed on the outer side of the disc; the fixed rings are fixed to the lower end face of the bending vibration disc through the fixed paws to clamp all flexibility rods; the positions of the flexibility rods in the radial grooves are adjusted through replacement of the inner fixed rings and the outer fixed rings with different diameters, and therefore the different machining sizes are met; and the device is suitable for precise and ultra-precise machining.

Description

Vertical adjustable supersonic vibration grinding equipment

Technical field

The present invention relates to a kind of supersonic vibration grinding equipment, belong to precision processing technology field, be specially vertical adjustable supersonic vibration grinding equipment。

Background technology

Industrial market develops the service efficiency and life-span that improve market segment rapidly, and especially for middle widget, traditional machining is difficult to meet delicate fields demand。Supersonic vibration honing technique is a kind of precision processing technology, and the processed edge of its uniqueness has promoted development and the application of this technology, it is possible to solve material difficulty processing problems encountered in industrial market。

While the industry fast development such as Aero-Space and automobile, the increasingly miniaturization of the parts in each field, or even microminiaturized, its difficulty of processing is also increasingly difficult to。Supersonic vibration grinding equipment can process small part, forms overlapping curve at finished surface, while improving workpiece surface quality, improves workpiece greasy property, extends service life。

Also having different ultrasonic honing equipments in existing document and application, be broadly divided into two kinds according to the difference of finished surface, one is ordinary ultrasonic grinding equipment, and another kind is cylindrical ultrasonic honing equipment。

Chinese patent ZL201210047050.6 discloses a kind of radial vibration ultrasound honing device, and its structure is complicated, and transmission efficiency is low, and oilstone is not easily changed, and structure is single, and often set grinding equipment can only process the workpiece of fixed dimension。

Summary of the invention

This invention address that prior art construction is complicated, transmission efficiency is low, processing dimension is single and the not easily changeable problem of oilstone, it is provided that a kind of vertical adjustable supersonic vibration grinding equipment。

The present invention adopts the following technical scheme that realization: vertical adjustable supersonic vibration grinding equipment, including relocation mechanism, collecting ring and honing head body；Described honing head body includes stepped sleeves, have in sleeve be sequentially connected with from top to bottom ultrasonic transducer, circular cone shape horn；Being provided with axially extending bore on ultrasonic transducer and be plugged with central ejector rod in this axially extending bore, the lower end of central ejector rod is inserted in the blind hole opened on horn upper surface；The pitch circle position of horn is provided with the nodal section disk with horn integrative-structure, the outer rim of nodal section disk has set up horn pitch circle support set, it is provided with sliding bearing between horn pitch circle support set and sleeve lining, between nodal section disk lower surface and the cascaded surface of sleeve, is additionally provided with recovery spring；Described relocation mechanism is arranged at sleeve top, and the upper end of central ejector rod is connected with relocation mechanism；Collecting ring is placed on sleeve by bearer ring, and sleeve upper ring cap has conducting ring, and the brush holder support on collecting ring contacts with conducting ring, and the input wiring terminal of ultrasonic transducer is connected through sleeve with conducting ring；The lower end of horn is connected to flexural vibration disk, the lower surface of flexural vibration disk is provided with the radial slot of distribution in homogeneous radiation shape, the lower surface of flexural vibration disk, screwed hole is had between adjacent radial groove, each radial slot is placed and its lower end outside vertical with flexural vibration disk and is fixed with the flexibility bar of oilstone bar, inner side is evenly equipped with on it to have the extenal fixation ring of the fixing claw in hole, outside is evenly equipped with on it to have the interior retainer ring of the fixing claw in hole, by the respective fixing foot pawl having hole on it, it is fixed in bolt and clamps whole flexibility bar in the screwed hole on the lower surface of flexural vibration disk；By changing the interior retainer ring of different-diameter, extenal fixation ring regulates flexibility bar position in radial slot, to meet different processing dimensions。

Compared with prior art, the invention have the benefit that

One, present configuration is simple, light, and transmission efficiency is high, and compared with existing tradition grinding equipment, apparatus of the present invention can reach higher machining accuracy, is particularly suited for the inner surface Precision Machining of Small Cylindrical body。

Two, existing ultrasonic honing equipment, its structure is design for fixed dimension workpiece mostly, and processing work scope is less, various sizes of workpiece can not be processed, and the invention belongs to adjustable ultrasonic honing equipment, processing work size range is bigger, it is possible to better meet the market demand。

Three, apparatus of the present invention rotate produced centrifugal force by device, complete oilstone to the honing pressure needed for surface of the work effect, decrease the structural complexity of device, improve the transmission efficiency of vibration so that apparatus structure is more simple；And the honing pressure that centrifugal force is far longer than in common honing process required for oilstone。

Four, apparatus of the present invention, it is possible to different materials especially difficult-to-machine materials various in current industrial market, carry out Precision and Ultra-precision Machining, and form honing overlapping curve at workpiece machining surface, the development of mechanical field is had good effect。

Accompanying drawing explanation

Fig. 1 is the structural representation of the vertical adjustable ultrasonic honing equipment of the present invention。

Fig. 2 is A-A view in Fig. 1。

Fig. 3 is flexural vibration disk upward view。

Fig. 4 is extenal fixation ring top view。

In figure, 1-relocation mechanism, 2-upper bush, 3-ultrasonic transducer, 4-central ejector rod；5-collecting ring, 6-horn, 7-lower sleeve, 8-flexural vibration disk, 9-flexibility bar, 10-oilstone bar, 11-sliding bearing, 12-horn pitch circle support set, 13-recovers spring, retainer ring in 14-, 15-radial slot, 16-fixes claw, 17-screwed hole, 18-extenal fixation ring。

Detailed description of the invention

Vertical adjustable supersonic vibration grinding equipment, including relocation mechanism 1, collecting ring 5 and honing head body；Described honing head body includes stepped sleeves, have in sleeve be sequentially connected with from top to bottom ultrasonic transducer 3, circular cone shape horn 6；Being provided with axially extending bore on ultrasonic transducer 3 and be plugged with central ejector rod 4 in this axially extending bore, the lower end of central ejector rod 4 is inserted in the blind hole opened on horn 6 upper surface；The pitch circle position of horn 6 is provided with the nodal section disk with horn integrative-structure, the outer rim of nodal section disk has set up horn pitch circle support set 12, it is provided with sliding bearing 11 between horn pitch circle support set 12 and sleeve lining, between nodal section disk lower surface and the cascaded surface of sleeve, is additionally provided with recovery spring 13；Described relocation mechanism 1 is arranged at sleeve top, and the upper end of central ejector rod 4 is connected with relocation mechanism 1；Collecting ring 5 is placed on sleeve by bearer ring, and sleeve upper ring cap has conducting ring, and the brush holder support on collecting ring 5 contacts with conducting ring, and the input wiring terminal of ultrasonic transducer 3 is connected through sleeve with conducting ring；The lower end of horn 6 is connected to flexural vibration disk 8, the lower surface of flexural vibration disk 8 is provided with the radial slot 15 of distribution in homogeneous radiation shape, the lower surface of flexural vibration disk 8, screwed hole 17 is had between adjacent radial groove, each radial slot 15 is placed and its lower end outside vertical with flexural vibration disk 8 and is fixed with the flexibility bar 9 of oilstone bar 10, inner side is evenly equipped with on it to have the extenal fixation ring 18 of the fixing claw 16 in hole, outside is evenly equipped with on it to have the interior retainer ring 14 of the fixing claw 16 in hole, by the respective fixing claw 16 having hole on it, it is fixed in bolt and clamps whole flexibility bar 9 in the screwed hole 17 on the lower surface of flexural vibration disk 8；By changing the interior retainer ring 14 of different-diameter, extenal fixation ring 18 regulates the flexibility bar 9 position in radial slot 15, to meet different processing dimensions。

During use, this device carries out working motion after being connected with lathe by relocation mechanism 1, lathe rotational movement device rotates, the axial action of machine tool chief axis directly acts on central ejector rod 4, central ejector rod has axial force, directly act on horn 6, device utilize bearing to be connected between collecting ring 5 and sleeve, ensure that collecting ring and brush holder support thereon do not rotate with main body, sleeve arranges a conducting ring, conducting ring is connected with the wire of the incoming signal of telecommunication of ultrasonic transducer 3, so in device rotation, current-collecting device remains to transmit the signal of telecommunication smoothly by the sliding contact of brush holder support Yu conducting ring time motionless, ultrasonic transducer 3 is after receiving ultrasonic electric signal, ultrasonic electric signal is converted to axial mechanical vibration, and in incoming horn 6, vibration is assembled by horn 6, amplify incoming flexural vibration disk 8, particularity due to structural design, axial mechanical vibration can be converted to radially mechanical vibration by flexural vibration disk 8, and drive flexibility bar 9 and oilstone bar 10 that radially mechanical vibration occur, device has rotary motion simultaneously in the process, and axially reciprocating can be there is by sliding bearing 11 under the effect of central ejector rod 4 in horn 6, between horn 6 pitch circle support set and sleeve, sliding bearing is set, ensure that internal structure can axial feed smoothly, recovery spring is set between horn 6 pitch circle position and sleeve simultaneously, can by the exercise recovery of horn 6, it is finally completed the reciprocating motion of oilstone bar。So, oilstone bar 10 simultaneously with radially mechanical vibration, forms honing overlapping curve at surface of the work in axially reciprocating and rotary movement。

When being embodied as, described sleeve is made up of upper bush 2 and lower sleeve 7, utilizes fixing bolt to connect between upper bush 2 and lower sleeve 7。Upper and lower sleeve is to divide according to apparatus structure requirement。It is fixedly connected by attachment screw between described ultrasonic transducer 3 and horn 6。Described horn 6 afterbody is provided with helicitic texture, and flexural vibration disk 8 center has screwed hole, utilizes screw thread to be attached between the two。Described flexibility bar 9 is column structure, and its tip designs is platform structure, is used for the oilstone bar that bonds；Receive in flexibility bar 9 the latter half, to facilitate processing。Radial slot 15 width is identical with flexibility bar 9 diameter, and radial slot 15 degree of depth is about the half of flexural vibration disk thickness。

As a kind of specific embodiment, device shown in the drawings, flexibility bar 9 is three, and correspondingly radial slot 15, screwed hole 17, fixing claw in inside and outside retainer ring are also all three。Size according to work piece, other number optional。

Claims

1. a vertical adjustable supersonic vibration grinding equipment, including relocation mechanism (1), collecting ring (5) and honing head body；Described honing head body includes stepped sleeves, have in sleeve be sequentially connected with from top to bottom ultrasonic transducer (3), circular cone shape horn (6)；Being provided with axially extending bore on ultrasonic transducer (3) and be plugged with central ejector rod (4) in this axially extending bore, the lower end of central ejector rod (4) is inserted in the blind hole opened on horn (6) upper surface；The pitch circle position of horn (6) is provided with the nodal section disk with horn integrative-structure, the outer rim of nodal section disk has set up horn pitch circle support set (12), it is provided with sliding bearing (11) between horn pitch circle support set (12) and sleeve lining, between nodal section disk lower surface and the cascaded surface of sleeve, is additionally provided with recovery spring (13)；Described relocation mechanism (1) is arranged at sleeve top, and the upper end of central ejector rod (4) is connected with relocation mechanism (1)；Collecting ring (5) is placed on sleeve by bearer ring, and sleeve upper ring cap has conducting ring, and the brush holder support on collecting ring (5) contacts with conducting ring, and the input wiring terminal of ultrasonic transducer (3) is connected through sleeve with conducting ring；It is characterized in that, the lower end of horn (6) is connected to flexural vibration disk (8), the lower surface of flexural vibration disk (8) is provided with the radial slot (15) of distribution in homogeneous radiation shape, the lower surface of flexural vibration disk (8), screwed hole (17) is had between adjacent radial groove, each radial slot (15) is placed and its lower end outside vertical with flexural vibration disk (8) and is fixed with the flexibility bar (9) of oilstone bar (10), inner side is evenly equipped with on it to have the extenal fixation ring (18) of the fixing claw (16) in hole, outside is evenly equipped with on it to have the interior retainer ring (14) of the fixing claw (16) in hole, by the respective fixing claw (16) having hole on it, it is fixed in bolt and clamps whole flexibility bar (9) screwed hole (17) on the lower surface of flexural vibration disk (8) Nei；By changing the interior retainer ring (14) of different-diameter, extenal fixation ring (18) regulates the flexibility bar (9) position in radial slot (15), to meet different processing dimensions。

2. vertical adjustable supersonic vibration grinding equipment according to claim 1, it is characterised in that described sleeve is made up of upper bush (2) and lower sleeve (7), utilizes fixing bolt to connect between upper bush (2) and lower sleeve (7)。

3. vertical adjustable supersonic vibration grinding equipment according to claim 1 and 2, it is characterised in that horn (6) afterbody is provided with helicitic texture, and flexural vibration disk (8) center has screwed hole, utilizes screw thread to be attached between the two。