CN107175543B - A kind of high speed rotation ultrasonic grinding main shaft - Google Patents
A kind of high speed rotation ultrasonic grinding main shaft Download PDFInfo
- Publication number
- CN107175543B CN107175543B CN201710427647.6A CN201710427647A CN107175543B CN 107175543 B CN107175543 B CN 107175543B CN 201710427647 A CN201710427647 A CN 201710427647A CN 107175543 B CN107175543 B CN 107175543B
- Authority
- CN
- China
- Prior art keywords
- main shaft
- aluminum hull
- ultrasonic transducer
- end cap
- sleeve
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
- B24B1/04—Processes 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
- B24B41/044—Grinding spindles with magnetic or electromagnetic bearings; Features related thereto
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The present invention provides a kind of high speed rotation ultrasonic grinding main shaft, positions by the taper hole of high-axiality, improves accuracy of alignment；The flange design of " 7 " type, increases contact distance, and time processing improves the reliability of ultrasonic transducer installation；Any Mechanical Contact is not present between primary coil and secondary coil, does not wear；Aluminum hull forms closed space, obstructs magnetic field exposure；Piezoelectric ceramic piece of the cold nitrogen in spindle cavity directly with fever contacts, and takes away amount of heat, improves radiating efficiency.
Description
Technical field
The present invention relates to a kind of high speed rotation ultrasonic grinding main shafts, belong to mechanical manufacturing field.
Background technique
Hard brittle material, such as advanced ceramics, glass, silicon crystal etc., their hardness, brittleness, wearability, corrosion stability,
Inoxidizability is relatively high.In hole machined, due to its high rigidity and low fracture toughness, lead to processing difficulties and easily cracked
Even fragmentation；Grinding force is big, generates a large amount of heat, part of burning, and tool wear is fast.The processing method that existing rank uses has tradition to grind
Mill, abrasive Flow Machining, magnetic grinding, conventional ultrasound processing, rotary ultrasonic grinding.
Rotary ultrasonic grinding is the Combined Machining Technology for combining tradition grinding and Ultrasonic machining.As shown in Figure 1,
Tool is done outside axial ultrasonic vibration with certain amplitude, while the rotary motion of high speed is done also relative to workpiece.It is super using rotation
The processing quality and processing efficiency of hard brittle material can be improved in sound grinding technique.By a large amount of studies have shown that rotary ultrasonic is ground
Grinding force can greatly be reduced compared to tradition grinding by cutting, and reduced heat and generated, reduce energy consumption, improve wheel life, improve workpiece
Suface processing quality improves processing efficiency.
Compared with other processing methods, supersonic making method has the characteristics that following:
1, it is suitble to the processing of various hard brittle materials, is not influenced by materials conductive.It can be with processing ceramic, glass, jewel, silicon
Nonconducting nonmetallic materials such as marble, are also capable of processing the non-metallic material of the hard such as hard alloy, hardened steel or resistance to thermal conducting
Material.
2, machining accuracy is high.Because the material of removal workpiece is the temporary impact effect by abrasive grain, the surface of workpiece
Macroscopical cutting force is very small, and cutting force and cutting heat are smaller, will not be deformed and burn, and the surface roughness of workpiece is very low.
It is suitble to the parts such as processing thin-walled, Low rigidity and narrow slit.
3, device is simple.It only needs to replace rotating ultrasonic chief axis on original internal grinder, remaining device, technique, processing
Method etc. is without change.Special fixture is not needed.
In the prior art application No. is 201610416213.1 patent disclose it is a kind of can quick-replaceable sound system
Rotating ultrasonic chief axis does not have energy converter cooling scheme；Energy converter mount scheme uses bolt, and disadvantage: being bolted, right
In it is just inevitable poor；Energy converter power supply plan uses carbon brush, disadvantage: physical contact, serious wear.
Application No. is the patents of 201410721228.x to disclose a kind of rotary ultrasonic master supported using magnetic suspension bearing
Axis does not have energy converter cooling scheme；Energy converter mount scheme uses bolt, end face, disadvantage: to neutral poor, assembling link
It is more；Energy converter power supply plan is wrapped up using no aluminum hull, inductive power supply.Disadvantage: leakage field, transmission efficiency are low.
Application No. is 201420871562.9 patents to disclose a kind of ultrasonic grinding composite main shaft structure, does not have and changes
It can device cooling scheme；Energy converter mount scheme uses bolt, end face, disadvantage: to neutral poor；Energy converter power supply plan uses carbon
Brush, disadvantage；Physical contact, serious wear.
Application No. is 201010525882.5 patents to disclose a kind of rotating ultrasonic chief axis, and it is cooling not have energy converter
Scheme；Energy converter installation
Scheme uses bolt, end face, disadvantage: to neutral poor；Energy converter power supply plan uses carbon brush, disadvantage；Physical contact,
Serious wear.
It can be seen that following disadvantage exists in the prior art:
1, ultrasonic transducer is fixed by bolts, and accuracy of alignment is low, poor reliability.
2, portion of techniques is powered using contact carbon brush.Carbon brush abrasion is serious, generates amount of heat, main shaft limit speed
It is low.
3, the inductive power supply device (present invention is resonance power supply) of portion of techniques, the transmission efficiency of electric energy is low, to transmission distance
From requiring height.
4, main shaft does not use that cooling device, cooling effect are low, cooling device is complicated.Low cooling effect is because of cooling medium
It is not exchanged with ultrasonic transducer heat directly.
Summary of the invention
The purpose of the present invention is to overcome the shortcomings of the existing technology and deficiency, provides a kind of high speed rotation ultrasonic grinding master
Axis.
One aspect of the present invention provides a kind of ultrasonic transducer mount scheme --- ensure ultrasonic transducer installation accuracy
Height guarantees the stabilization and precision of main shaft under high revolving speed；
One aspect of the present invention provides a kind of contactless resonance power supply unit --- under main shaft high-speed rotation, it is ensured that
Ultrasonic transducer stable power-supplying, high-frequency vibration meet high manufacturing accuracy requirement；Improve electric energy efficiency of transmission.
One aspect of the present invention provides a kind of ultrasonic transducer heat sink conception --- ensure that ultrasonic transducer efficiently dissipates
Heat provides the environment of steady operation for ultrasonic transducer.
One aspect of the present invention provides a kind of high speed rotation ultrasonic grinding main shaft, mainly includes main shaft (1), belt pulley
(5), left end cap (7), bearing block (9), upper bearing (metal) (10), small sleeve (11), shell (12), rotation aluminum hull (13), secondary coil
(14), fixed aluminum hull (15), primary coil (16), nylon sleeve (17), ultrasonic transducer (19), lower bearing (21), right end cap
(24), internal screw thread end cap (25), external screw thread end cap (26)；Main shaft (1) is supported by upper bearing (metal) (10), lower bearing (21)；Lower bearing
(21) outer sleeve (23) are installed between outer ring；Fixed aluminum hull (15), long sleeve (20), lower bearing (21), outer sleeve (23), right end
Lid (24) is sequentially arranged on shell (12)；Inner sleeve (22) are installed between lower bearing (21) inner ring；Internal screw thread end cap (25) with
Main shaft (1) is to be threadedly coupled, and lower bearing (21) inner ring, inner sleeve (22) are fixed on main shaft (1)；Upper bearing (metal) (10) outer ring
It is mounted on bearing block (9)；Bearing block (9) and main shaft are positioned by taper；Bearing block (9) is pressed on using left end cap (7)
On main shaft (1)；Upper bearing (metal) (10), small sleeve (11), sleeve (6), belt pulley (5), washer (3), nut (2) are fixed on main shaft
(1) on；Rotation aluminum hull (13), nylon sleeve (17) are installed on the intermediate shaft part of main shaft (1), and the overall length of the two is omited than the shaft part
It is long；Because nylon sleeve (17) material is compressible nylon, when small sleeve (11) is pressed on the shaft shoulder of main shaft (1),
Compress rotation aluminum hull (13), nylon sleeve (17)；The elastic force of nylon makes small sleeve (11), rotation aluminum hull (13), nylon sleeve
(17) end face fits closely rotation aluminum hull (13) and rotates together with by end-face friction transmitting torque with main shaft；Primary coil (16) peace
Loaded in fixed aluminum hull (15)；Secondary coil (14) is installed in rotation aluminum hull (13)；Ultrasonic transducer (19) is located at main shaft sky
In chamber (102)；Flange (196) and main shaft on ultrasonic transducer (19) are positioned by taper；External screw thread end cap (25) and main shaft
(1) to be threadedly coupled, ultrasonic transducer (19) are compressed；Two wire guides (106) are opened on main shaft；Draw from secondary coil (14)
Two conducting wires out pass through wire guide (106) and connect and power with ultrasonic transducer (19)；Motor drives main shaft to turn by belt pulley
It is dynamic；Ultrasonic transducer (19), tool heads (29) are rotated together with main shaft (1), which is characterized in that by ultrasonic transducer flange
(196) it is made into " 7 " type of lower Bao Shanghou；The external cylindrical surface at ultrasonic transducer flange (196) thickness end does tapering, and right on main shaft
The taper answered matches, and constitutes taper positioning；Ultrasonic transducer (19) is pressed on main shaft using external screw thread end cap (26).
One aspect of the present invention further includes rotation aluminum hull (13), secondary coil (14), fixed aluminum hull (15), primary line
It encloses (16)；Fixed aluminum hull (15) and rotation aluminum hull (13) are distributed main shaft is radially concentric, and fixed aluminum hull (15) are in rotation aluminum hull
(13), there is minim gap therebetween in outside；Fixed aluminum hull (15) are " [] " types, and rotation aluminum hull (13) is hollow " work "
Type；Both described spatial distribution is " [work] " type；Primary coil (16) turns to circular ring type using stranded wire；Fixed aluminium
Shell (15) is made of fixed aluminum hull end cap (151) and fixed aluminum hull frame (152)；Primary coil (16) is put into fixed aluminum hull frame
(152), the two is concentric, then covers fixed aluminum hull end cap (151)；Symmetrical two U-shaped holes are opened on fixed aluminum hull end cap (151),
To pick out conducting wire；Secondary coil (14) is wrapped in rotation aluminum hull (13) using stranded wire, and the two is concentric；Rotate aluminum hull
(13) symmetrical two U-shaped holes are opened in one end；Two energy converter conducting wires (18) of secondary coil (14) are drawn from U-shaped hole；Energy converter
The wire guide (106) that conducting wire (18) passes through on main shaft is connected with ultrasonic transducer.
One aspect of the present invention, main shaft (1) structure half is coarse, the other half is elongated；Thick one end is made into cavity
(102), for installing ultrasonic transducer (19)；There are larger gaps with cavity (102) surrounding for ultrasonic transducer (19)；Thin one
End is opened centre bore (101), and its end is tubaeform；Six flange holes (103) are opened on ultrasonic transducer flange (196)；
There are gap (104) between ultrasonic transducer (19) and external screw thread end cap (26)；Cold nitrogen is passed through master through spindle hole (101)
Axis flows through spindle cavity (102), and cools down to ultrasonic transducer (19)；Cold nitrogen is through ultrasonic transducer flange hole
(103), gap (104) outflow between ultrasonic transducer (19) and internal screw thread end cap (25)；Meanwhile it can be to ultrasonic transducer
(19) sealing gland is formed, pollutant is prevented to enter inside ultrasonic transducer.
It is compressible nylon that one aspect of the present invention, which further includes nylon sleeve (17) material,；Rotate aluminum hull (13), Buddhist nun
Actor playing a supporting role's cylinder (17) is installed on the intermediate shaft part of main shaft (1), and the overall length of the two is more slightly longer than the shaft part；And it is pressed with small sleeve (11)
Tightly；Make small sleeve (11) and rotates aluminum hull (13), main shaft (1) shaft shoulder while fitting closely.
One aspect of the present invention further includes that upper bearing (metal) (10) is mounted on bearing block (9)；Bearing block (9) external cylindrical surface
Tapering is done, is matched with taper corresponding on main shaft, taper positioning is constituted；Bearing block (9) is pressed on using left end cap (7)
On main shaft (1).
The present invention has the following advantages and effects with respect to the prior art:
1, this ultrasonic transducer mount scheme improves accuracy of alignment and reliability.
2, contactless resonance power supply unit and carbon brush are compared, and are solved the problems, such as carbon brush loss, are reduced fever, significantly
Improve main shaft limit speed.
3, this resonance power supply unit and other inductive power supplies are compared, and aluminum hull forms closed space, obstruct magnetic field exposure,
Improve the transmission efficiency of electric energy.
4, this ultrasonic transducer heat sink conception improves radiating efficiency, and cooling gas is made full use of to form sealing gland, prevents resistance
Only pollutant enters.Suitable for high speed.
5, frictionally transmits torque, drives rotation aluminum hull rotation.Do not have to spline on main shaft, it is strong main shaft will not to be weakened
Degree influences spindle dynamic balance small.
6, bearing block and main shaft are positioned by taper, and accuracy of alignment is high.
Detailed description of the invention
Fig. 1 is rotary ultrasonic Principle of Grinding and Cutting figure；
Fig. 2 is high speed rotation ultrasonic grinding main shaft schematic diagram；
Fig. 3 is ultrasonic power supply system block diagram；
Fig. 4 is the equivalent circuit diagram of ultrasonic power supply system；
Fig. 5 is fixed part schematic diagram；
Fig. 6 is rotating part schematic diagram；
Fig. 7 is contactless resonance power supply unit schematic diagram；
Fig. 8 is ultrasonic transducer schematic diagram；
Fig. 9 is axis schematic diagram.
Specific embodiment
Present invention will now be described in further detail with reference to the embodiments and the accompanying drawings, but embodiments of the present invention are unlimited
In this.
The present invention is a kind of internal grinder main shaft.While high speed rotation (10000rpm), high frequency axially shakes tool heads
It is dynamic.Under the compound action for rotating and vibrating, hard brittle material be easier process, effect be greater than individually rotation and vibrating effect it
With.
Ultrasonic transducer 19 shown in figure is responsible for axial high-frequency vibration, and transfers vibrations to tool head end.Main shaft 1 is negative
High-speed rotation is blamed, torque is transmitted, and ultrasonic transducer 19 is driven to rotate.The collective effect of the two turned tool head end both at a high speed
Dynamic high-frequency vibration again.High speed rotation ultrasonic grinding main shaft as shown in the figure mainly includes main shaft 1, belt pulley 5, left end cap 7, bearing
Seat 9, upper bearing (metal) 10, small sleeve 11, shell 12, rotation aluminum hull 13, secondary coil 14, fixed aluminum hull 15, primary coil 16, nylon
Sleeve 17, ultrasonic transducer 19, lower bearing 21, right end cap 24, internal screw thread end cap 25, external screw thread end cap 26.Main shaft 1 leans on upper bearing (metal)
10, lower bearing 21 supports.Outer sleeve 23 is installed between two 21 outer rings of lower bearing.Fixed aluminum hull 15, long sleeve 20, lower bearing
21, outer sleeve 23, right end cap 24 are sequentially arranged on shell 12.Inner sleeve 22 is installed between two 21 inner rings of lower bearing.Interior spiral shell
Line end cap 25 is to be threadedly coupled, and 21 inner ring of lower bearing, inner sleeve 22 are fixed on main shaft 1 with main shaft 1.10 outer ring of upper bearing (metal)
It is mounted on bearing block 9.Bearing block 9 and main shaft are positioned by taper.Bearing block 9 is pressed on main shaft 1 using left end cap 7.
Upper bearing (metal) 10, small sleeve 11, sleeve 6, belt pulley 5, washer 3, nut 2) it is fixed on main shaft 1.Rotate aluminum hull 13, nylon sleeve
17 are installed on the intermediate shaft part of main shaft 1, and the overall length of the two is more slightly longer than the shaft part.Because 17 material of nylon sleeve is compressible
Nylon also compresses rotation aluminum hull 13, nylon sleeve 17 when small sleeve 11 is pressed on the shaft shoulder of main shaft 1.The elastic force of nylon
Fit closely small sleeve 11, rotation aluminum hull 13,17 end face of nylon sleeve.Rotate aluminum hull 13 by end-face friction transmitting torque with
Main shaft rotates together with.Primary coil 16 is installed in fixed aluminum hull 15.Secondary coil 14 is installed in rotation aluminum hull 13.Ultrasound is changed
Energy device 19 is located in spindle cavity 102.Flange 196 and main shaft on ultrasonic transducer 19 are positioned by taper.External screw thread end cap
25 with main shaft 1 be threadedly coupled, ultrasonic transducer 19 is compressed.Two wire guides 106 are opened on main shaft.Draw from secondary coil 14
Two conducting wires out connect and power with ultrasonic transducer 19 across wire guide 106.Motor drives main axis by belt pulley.
Ultrasonic transducer 19, tool heads 29 are rotated together with main shaft 1.The high speed rotation ultrasonic grinding main shaft, by ultrasonic transducer method
Orchid 196 is made into " 7 " type of lower Bao Shanghou；The external cylindrical surface at the thick end of ultrasonic transducer flange 196 does tapering, corresponding on main shaft
Taper match, constitute taper positioning；Ultrasonic transducer 19 is pressed on main shaft using external screw thread end cap 26.Using " 7 "
Type structure be because are as follows: ultrasonic transducer flange 196 will be made as far as possible thin, just will not influence vibration；Ultrasonic transducer is with taper
It is mounted on main shaft, in order to improve accuracy of alignment and reliability, it is desirable that must be sufficiently thick at taper 195.
High speed rotation ultrasonic grinding main shaft further includes rotation aluminum hull 13, secondary coil 14, fixed aluminum hull 15, primary coil
16.Fixed aluminum hull 15 and rotation aluminum hull 13 are distributed main shaft is radially concentric, and fixed aluminum hull 15 is on the outside of rotation aluminum hull 13, the two
Between there are minim gaps.Fixed aluminum hull 15 is " [] " type, and rotation aluminum hull 13 is hollow " work " type.Both described space
Distribution is " [work] " type.Primary coil 16 turns to circular ring type using stranded wire.Fixed aluminum hull 15 is by fixed aluminum hull end cap
151 form with fixed aluminum hull frame 152.Primary coil 16 is put into fixed aluminum hull frame 152, and the two is concentric, then covers fixed aluminum hull end
Lid 151.Symmetrical two U-shaped holes are opened on fixed aluminum hull end cap 151, to pick out conducting wire.Secondary coil 14 utilizes strands
Line is wrapped on rotation aluminum hull 13, and the two is concentric.Open symmetrical two U-shaped holes in rotation 13 one end of aluminum hull.The two of secondary coil 14
Root energy converter conducting wire 18 is drawn from U-shaped hole.The wire guide 106 that energy converter conducting wire 18 passes through on main shaft is connected with ultrasonic transducer.
1 structure half of high speed rotation ultrasonic grinding main shaft is coarse, the other half is elongated.Thick one end is made into cavity 102, is used for
Ultrasonic transducer 19 is installed.There are larger gaps with 102 surrounding of cavity for ultrasonic transducer 19.Centre bore 101 is opened in thin one end, and
And its end is tubaeform.Six flange holes 103 are opened on ultrasonic transducer flange 196.Ultrasonic transducer 19 and male end
There are gaps 104 between lid 26.Cold nitrogen is passed through main shaft through spindle hole 101, flows through spindle cavity 102, and change ultrasound
Energy device 19 is cooled down.Cold nitrogen through ultrasonic transducer flange hole 103, between ultrasonic transducer 19 and internal screw thread end cap 25 between
Gap 104 flows out.Meanwhile sealing gland can be formed to ultrasonic transducer 19, prevent pollutant from entering inside ultrasonic transducer.
High speed rotation ultrasonic grinding main shaft further includes that 17 material of nylon sleeve is compressible nylon；Rotate aluminum hull 13, Buddhist nun
Actor playing a supporting role's cylinder 17 is installed on the intermediate shaft part of main shaft 1, and the overall length of the two is more slightly longer than the shaft part.And it is compressed with small sleeve 11.Make small
Sleeve 11 fits closely simultaneously with rotation aluminum hull 13,1 shaft shoulder of main shaft.
High speed rotation ultrasonic grinding main shaft further includes that upper bearing (metal) 10 is mounted on bearing block 9.9 external cylindrical surface of bearing block is done
Tapering is matched with taper corresponding on main shaft, constitutes taper positioning.Bearing block 9 is pressed on main shaft 1 using left end cap 7
On.Main shaft 1 as shown in the figure is supported by upper bearing (metal) 10, lower bearing 21.21 outer ring of lower bearing leans on long sleeve 20, fixes aluminum hull 15, is outer
Sleeve 23, right end cap 24 are fixed on shell 12.Screw thread between the inner thread ending cover 25 of 21 inner ring of lower bearing and main shaft 1 connects
It connects, inner sleeve 22 is fixed on main shaft 1.
10 outer ring of upper bearing (metal) is mounted on bearing block 9.Bearing block 9 connect positioning with 12 taper hole of shell, and is pressed with left end cap 7
Tightly.Upper bearing (metal) 10, small sleeve 11, sleeve 6, belt pulley 5, washer 3, nut 2 are fixed on main shaft 1.
Ultrasonic transducer 19 is made of back shroud 191, piezoelectric ceramic piece 192, electrode slice 193, front shroud amplitude transformer 194.
Back shroud 191 is connected through a screw thread with front shroud amplitude transformer 194.Tool heads 29 are inserted into ER collet 28, and pass through ER collet spiral shell
Mother 27 is pressed in the taper hole of ultrasonic transducer 19.
Ultrasonic transducer 19 connect positioning with 1 taper hole of main shaft, and is compressed with external screw thread end cap 25.Motor passes through belt pulley band
Dynamic main axis.Ultrasonic transducer 19, tool heads 29 are rotated together with main shaft.
Primary coil 16, which is wound, to be mounted in fixed aluminum hull 15.Fixed aluminum hull 15 plays a supportive role.Secondary coil 14 twines
It is wound in rotation aluminum hull 13.Primary coil 16, fixed aluminum hull 15, secondary coil 14, rotation aluminum hull 13 form resonance power supply unit.
External high frequency electric current passes through power lead 30, and electric energy is transmitted to height in contactless mode by primary coil 16
On the secondary coil 14 of speed rotation, and energy converter conducting wire 18 is connected on electrode slice 193, is powered for ultrasonic transducer 19.
Cold nitrogen is passed through main shaft through spindle hole 101, flows through spindle cavity 102, and dissipate to ultrasonic transducer 19 is cooling
Heat.Nitrogen through ultrasonic transducer flange hole 103, flow out by the gap 104 between ultrasonic transducer 19 and internal screw thread end cap 25.Together
When, sealing gland can be formed to ultrasonic transducer 19, pollutant is prevented to enter inside ultrasonic transducer.
Improvement of the invention is mainly reflected in following three aspects:
1, a kind of ultrasonic transducer mount scheme.
(1) ultrasonic transducer flange is made into " 7 " type.Since ultrasonic transducer flange 196 will be made as far as possible thin, just will not
Influence vibration.In order to improve accuracy of alignment, ultrasonic transducer is mounted on main shaft with taper.It is required that must be enough at taper 195
Thickness just can guarantee reliability.Ultrasonic transducer flange is made into " 7 " type of lower Bao Shanghou thus.It will be surpassed using thread ending cover 25
Sonic transducer is pressed on main shaft.
Meanwhile such as Fig. 9, main axle structure half is elongated, the other half is coarse, and thick one end is made into spindle cavity 102, uses
In placement ultrasonic transducer.
(2) existing apparatus: being generally made as thin flange, and the aperture on flange is mounted on main shaft, the method by bolt
Positioning accuracy is low.
2, a kind of contactless resonance power supply unit.
(1) it is made of fixed part and rotating part.Fixed part includes primary coil, fixes aluminum hull, with
Ultrasonic-frequency power supply connection；Rotating part includes secondary coil, rotation aluminum hull, connect with ultrasonic transducer, rotates with main shaft.
Rotating part and fixed part are without magnetic core.
Fixed aluminum hull and rotation aluminum hull are distributed main shaft is radially concentric, fixed aluminum hull on the outside of rotation aluminum hull, the two it
Between there are minim gaps.Fixed aluminum hull is " [] " type, and rotation aluminum hull is hollow " work " type.Both described spatial distribution is
" [work] " type.
Fixed part is made of primary coil, fixed aluminum hull.Primary coil turns to circular ring type using stranded wire.Gu
Determine aluminum hull 15 and divides fixed aluminum hull end cap 151 and fixed aluminum hull frame 152.Primary coil is put into fixed aluminum hull frame, and the two is concentric.It covers again
Upper fixed aluminum hull end cap.Symmetrical two U-shaped holes are opened on fixed aluminum hull end cap, to pick out conducting wire.
Secondary coil is wrapped on rotation aluminum hull using stranded wire and forms rotating part, and the two is concentric.Rotate aluminum hull
Symmetrical two U-shaped holes are opened in one end, to pick out conducting wire.The wire guide 106 that conducting wire passes through on main shaft is connected with ultrasonic transducer.
Ultrasonic power supply system block diagram is as shown in figure 3, dotted portion is contactless resonance power supply unit.The system is by surpassing
Acoustic-electric source, matching network, contactless resonance power supply unit and ultrasonic transducer composition.Fig. 4 is the equivalent of ultrasonic power supply system
Circuit diagram, wherein U is high frequency excitation alternating message source；X0For primary side matching network；Lp, Ls are respectively oneself of former vice-side winding
Sense；Rp, Rs are respectively the equivalent resistance of former vice-side winding；RL、XLFor the equivalent resistance and equivalent reactance of energy converter；Ip, Is difference
For primary side exciting current and secondary side induced current；ω is power supply angular frequency.
Contactless resonance power supply unit is a kind of transformer of loose coupling, will by air gap according to resonance power supply the principle
Primary side energy conduction is to secondary side.Since energy converter is in capacitive near its working frequency f0, in order to reach former secondary side resonance, pass through
Secondary coil inductance is adjusted to that energy converter is just made to reach resonance at f0 by parameter designing, i.e., secondary side reactance is zero, j ω
Ls+jXL=0.Matching element X is added in primary side0, to offset the reactive component in primary circuit, so that whole system electric energy transmitting effect
Rate reaches maximum.
(2) existing apparatus: general power supply unit is to directly adopt general transformer principle but disresonance power supply the principle, not
Consider the impedance operator of ultrasonic transducer.And present apparatus rotating part and fixed part are without magnetic core.
3, a kind of ultrasonic transducer heat sink conception.
(1) main shaft is made into hollow, elongated end is center hole 101, and coarse one end is cavity 102, and the two intersection does
At opening 105.Cold nitrogen is passed through in spindle hole 101, and cold nitrogen flows through spindle cavity 102, is radiated for ultrasonic transducer.Through
Flange hole 103, gap 104 on method ultrasonic transducer flow out main shaft, and form sealing gland to main shaft, and pollutant is prevented to enter.
(2) existing apparatus: A uses water cooling, and water channel is arranged in outside bearing, and cooling effect is very poor.B use water cooling, main shaft,
Energy converter, tool heads etc. all open centre bore, form water channel on central axes, run through whole main shaft.This scheme wants the sealing of junction
Ask high, leak easy to form increases the design of ultrasonic transducer, small tool head application difficult.C wide-bore on main shaft wall,
Pass through the cooling ultrasonic transducer of the air-flow of rotation.Due to main shaft high speed rotation, " airbond " will form, it is difficult to extraneous convection current, dissipate
Thermal effect is poor.
The present invention is positioned by the taper hole of high-axiality, improves accuracy of alignment；The flange design of " 7 " type, increases and connects
Distance is touched, time processing improves the reliability of ultrasonic transducer installation；Any machinery is not present between primary coil and secondary coil
Contact, does not wear；Aluminum hull forms closed space, obstructs magnetic field exposure；Cold nitrogen in spindle cavity directly with fever
Piezoelectric ceramic piece contact, takes away amount of heat, improves radiating efficiency.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (3)
1. a kind of high speed rotation ultrasonic grinding main shaft, mainly include main shaft (1), belt pulley (5), left end cap (7), bearing block (9),
Upper bearing (metal) (10), small sleeve (11), shell (12), rotation aluminum hull (13), secondary coil (14), fixed aluminum hull (15), primary line
Enclose (16), nylon sleeve (17), ultrasonic transducer (19), lower bearing (21), right end cap (24), internal screw thread end cap (25), outer spiral shell
Line end cap (26)；Main shaft (1) is supported by upper bearing (metal) (10), lower bearing (21)；Housing is installed between two lower bearing (21) outer rings
Cylinder (23)；Fixed aluminum hull (15), long sleeve (20), lower bearing (21), outer sleeve (23), right end cap (24) are sequentially arranged at shell
(12) on；Inner sleeve (22) are installed between two lower bearing (21) inner rings；Internal screw thread end cap (25) and main shaft (1) are screw thread company
It connects, and lower bearing (21) inner ring, inner sleeve (22) is fixed on main shaft (1)；Upper bearing (metal) (10) outer ring is mounted on bearing block (9)
On；Bearing block (9) and main shaft are positioned by taper；Bearing block (9) is pressed on main shaft (1) using left end cap (7)；Upper bearing (metal)
(10), small sleeve (11), sleeve (6), belt pulley (5), washer (3), nut (2) are fixed on main shaft (1)；Rotate aluminum hull
(13), nylon sleeve (17) is installed on the intermediate shaft part of main shaft (1), and the overall length of the two is more slightly longer than the shaft part；Because of nylon jacket
Cylinder (17) material is compressible nylon, when small sleeve (11) is pressed on the shaft shoulder of main shaft (1), also compresses rotation aluminum hull
(13), nylon sleeve (17)；The elastic force of nylon keeps small sleeve (11), rotation aluminum hull (13), nylon sleeve (17) end face close
Fitting rotation aluminum hull (13) is rotated together with by end-face friction transmitting torque with main shaft；Primary coil (16) is installed on fixed aluminum hull
(15) in；Secondary coil (14) is installed in rotation aluminum hull (13)；Ultrasonic transducer (19) is located in spindle cavity (102)；It is super
Flange (196) and main shaft on sonic transducer (19) are positioned by taper；External screw thread end cap (25) and main shaft (1) are screw thread company
It connects, ultrasonic transducer (19) is compressed；Two wire guides (106) are opened on main shaft；Two conducting wires are drawn from secondary coil (14),
It connect and powers with ultrasonic transducer (19) across wire guide (106)；Motor drives main axis by belt pulley；Ultrasonic transduction
Device (19), tool heads (29) are rotated together with main shaft (1), which is characterized in that ultrasonic transducer flange (196) is made into down on thin
Thick " 7 " type；The external cylindrical surface at ultrasonic transducer flange (196) thickness end does tapering, matches with taper corresponding on main shaft,
Constitute taper positioning；Ultrasonic transducer (19) is pressed on main shaft using external screw thread end cap (26).
2. a kind of high speed rotation ultrasonic grinding main shaft as described in claim 1, which is characterized in that fixed aluminum hull (15) and rotation
Aluminum hull (13) is radially distributed with one heart in main shaft, and fixed aluminum hull (15) exist therebetween small on the outside of rotation aluminum hull (13)
Gap；Fixed aluminum hull (15) are " [] " types, and rotation aluminum hull (13) is hollow " work " type；Both described spatial distribution is
" [work] " type；Primary coil (16) turns to circular ring type using stranded wire；Fixed aluminum hull (15) are by fixed aluminum hull end cap
(151) it is formed with fixed aluminum hull frame (152)；Primary coil (16) is put into fixed aluminum hull frame (152), and the two is concentric, then covers solid
Determine aluminum hull end cap (151)；Symmetrical two U-shaped holes are opened on fixed aluminum hull end cap (151), to pick out conducting wire；Secondary coil
(14) it is wrapped in rotation aluminum hull (13) using stranded wire, the two is concentric；Open symmetrical two U in rotation aluminum hull (13) one end
Type hole；Two energy converter conducting wires (18) of secondary coil (14) are drawn from U-shaped hole；Energy converter conducting wire (18) passes through leading on main shaft
String holes (106) is connected with ultrasonic transducer.
3. a kind of high speed rotation ultrasonic grinding main shaft as described in claim 1, which is characterized in that main shaft (1) structure half is thick
Greatly, the other half is elongated；Thick one end is made into cavity (102), for installing ultrasonic transducer (19)；Ultrasonic transducer (19) and sky
There are larger gaps for chamber (102) surrounding；Thin one end is opened centre bore (101), and its end is tubaeform；In ultrasonic transducer
Six flange holes (103) are opened on flange (196)；There are gap (104) between ultrasonic transducer (19) and external screw thread end cap (26)；
Cold nitrogen is passed through main shaft through spindle hole (101), flows through spindle cavity (102), and cools down to ultrasonic transducer (19)；
Gap (104) stream of the cold nitrogen through ultrasonic transducer flange hole (103), between ultrasonic transducer (19) and internal screw thread end cap (25)
Out；Meanwhile sealing gland can be formed to ultrasonic transducer (19), prevent pollutant from entering inside ultrasonic transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710427647.6A CN107175543B (en) | 2017-06-08 | 2017-06-08 | A kind of high speed rotation ultrasonic grinding main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710427647.6A CN107175543B (en) | 2017-06-08 | 2017-06-08 | A kind of high speed rotation ultrasonic grinding main shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107175543A CN107175543A (en) | 2017-09-19 |
| CN107175543B true CN107175543B (en) | 2019-07-05 |
Family
ID=59835672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710427647.6A Active CN107175543B (en) | 2017-06-08 | 2017-06-08 | A kind of high speed rotation ultrasonic grinding main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107175543B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107824820B (en) * | 2017-11-07 | 2019-04-23 | 常州市兴强工具有限公司 | A kind of ultrasonic wave knife handle component |
| CN108380910B (en) * | 2018-04-19 | 2019-08-30 | 唐德祥 | Air suspension formula ultrasound high-speed motorized spindles |
| CN111036532B (en) * | 2018-10-13 | 2022-03-22 | 苏州宝时得电动工具有限公司 | Ultrasonic tool |
| CN109333220B (en) * | 2018-10-16 | 2024-01-30 | 刘小辉 | Sedimentation type edge grinding machine and edge grinding processing method thereof |
| US11207737B2 (en) | 2019-09-05 | 2021-12-28 | Toyota Motor Engineering & Manufacturing North America, Inc. | Inline tool holders |
| CN114069948A (en) * | 2021-11-23 | 2022-02-18 | 佛山市顺德区华顺电机实业有限公司 | Electric machine |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006247808A (en) * | 2005-03-14 | 2006-09-21 | Kouyu Kikura | Fluid hydrostatic bearing ultrasonic vibration spindle |
| JP2007007810A (en) * | 2005-07-01 | 2007-01-18 | Bosch Corp | Spindle for ultrasonic machining |
| TWI337559B (en) * | 2007-12-20 | 2011-02-21 | Ind Tech Res Inst | Spindle and flexure hinge used in ultrasonic machine |
| CN102101179B (en) * | 2010-10-28 | 2012-12-19 | 广东工业大学 | Rotary ultrasonic main shaft |
| CN202021539U (en) * | 2010-12-21 | 2011-11-02 | 苏州工业职业技术学院 | Novel ultrasonic honing tool |
| CN104002205B (en) * | 2014-05-20 | 2018-01-23 | 张增英 | Non-contact energy conveying type ultrasonic machining device |
| CN205362704U (en) * | 2016-01-28 | 2016-07-06 | 常州市翰琪电机有限公司 | Split type ultrasonic wave electricity main shaft |
| CN106077718B (en) * | 2016-06-14 | 2018-03-20 | 杭州电子科技大学 | A kind of rotating ultrasonic chief axis of energy quick-replaceable sound system |
-
2017
- 2017-06-08 CN CN201710427647.6A patent/CN107175543B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107175543A (en) | 2017-09-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107175543B (en) | A kind of high speed rotation ultrasonic grinding main shaft | |
| CN107008959B (en) | Non-contact inductive power supply elliptical ultrasonic machining device | |
| CN106985015B (en) | Integral composite ultrasonic knife handle device | |
| CN103071614B (en) | Separated super-magnetostrictive telescopic rotary ultrasonic vibration head | |
| CN204934742U (en) | A kind of rotary ultrasonic machining device based on noncontact Energy Transfer | |
| CN105499626B (en) | A kind of vibration drilling device | |
| CN106334806B (en) | Can automatic tool changer HSK ultrasonic knife handle structures | |
| CN205520756U (en) | Handle of a knife integrated system suitable for high -speed supersound mills and grinds processing | |
| CN105171131A (en) | Rotary ultrasonic machining device based on non-contact energy transfer | |
| CN106825679B (en) | A kind of ultrasonic vibration pneumatic drill based on rotating radio energy transmission | |
| CN109571111B (en) | Ultrasonic vibration workbench and processing technology | |
| CN206898463U (en) | A kind of oval ultrasonic machining device of contactless inductive power supply | |
| CN108568398B (en) | Giant magnetostrictive ultrasonic transducer | |
| CN109396005A (en) | The compound supersonic making method of multi-dimensional vibration with interior refrigerating function and system | |
| CN107931079B (en) | A kind of ultra-magnetic telescopic rotary ultrasonic vibration device | |
| CN108372558B (en) | High-speed rotary ultrasonic knife handle structure and system thereof | |
| CN106026420B (en) | A kind of ultrasonic vibration auxiliary cutting device of electromagentic resonance formula wireless power transmission | |
| CN105922453A (en) | HSK ultrasonic knife handle | |
| CN115383827A (en) | Ultrasonic-assisted longitudinal-torsional vibration machining device | |
| CN209379359U (en) | The compound Ultrasonic machining system of multi-dimensional vibration with interior refrigerating function | |
| CN112643911A (en) | Self-cooling hollow rod ultrasonic knife handle system | |
| CN111702189B (en) | Giant magnetostrictive elliptical vibration turning device and turning method | |
| CN110497529B (en) | Accessory type rotary ultrasonic vibration cutter handle | |
| CN107042426B (en) | Ultra-long rotary ultrasonic spindle adopting line transmission | |
| CN215835202U (en) | Novel ultrasonic machining wireless transmission system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |