CN107433516A - Electric grinding device - Google Patents
Electric grinding device Download PDFInfo
- Publication number
- CN107433516A CN107433516A CN201710260161.8A CN201710260161A CN107433516A CN 107433516 A CN107433516 A CN 107433516A CN 201710260161 A CN201710260161 A CN 201710260161A CN 107433516 A CN107433516 A CN 107433516A
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- China
- Prior art keywords
- gear
- external gear
- side external
- outside internal
- grinding
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- 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.)
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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
- B24B37/00—Lapping machines or devices; Accessories
-
- 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
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/11—Lapping tools
-
- 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
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/34—Accessories
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The present invention provides a kind of electric grinding device, and defined grinding quality can be also obtained even without high proficiency.The electric grinding device possesses motor, Poewr transmission mechanism portion and housing, and Poewr transmission mechanism portion has：Its motor output shaft possessed by with motor of idler gear engages；Eccentric main axis, one side are fixed and fix and be connected with idler gear, and another side has axis center in the position of the axis center deviation from a side；Inner side external gear, it is arranged on the another side of eccentric main axis via bearing in a manner of it can rotate；Outside internal gear, it is fixedly provided in housing side, and is engaged with inner side external gear；And grinding pad, it is arranged to be connected with inner side external gear.Also, in inner side, external gear is revolved round the sun while during rotation by the effect of eccentric main axis and outside internal gear, and whenever the inner side external gear circles in outside internal gear inward turning, the position of the track of the arbitrary tooth of the inner side external gear can deviate.
Description
Technical field
The present invention relates to a kind of electric grinding device.
Background technology
In the past, the grinding mechanism such as known emery wheel for being installed on grinding pad be rotated using the effect of eccentric shaft with
The action that eccentric motion combines, so as to be ground the electric grinding device of operation.For example, in following patent documents 1,
Disclose the raising for realizing operability, the simplification of construction, the electric grinding dress that the damage of tooth prevents, the damage of workpiece surface prevents
(grinder) is put, as concrete structure, the grinder possesses the motor being arranged in main body, the master for being driven and being rotated by the motor
Axle, be mounted relative in a manner of it can rotate the spindle eccentricity position connection shaft and be fixably attached to the company
Tie axle grinding pad (abrasive disk), central gear is coaxially fixed with the connection shaft, be provided with the body with
The inside engaged gear of central gear engagement, wherein, the inside engaged gear is installed in a manner of it can rotate described
Main body, and be provided with locking mechanism on the body, the locking mechanism can hinder the inside engaged gear relative to
Operation is switched between the position of the rotation of the main body and the position for allowing rotation.
Citation
Patent document
Patent document 1：Japanese Unexamined Patent Publication 5-337810 publications
However, with above-mentioned patent document 1 in the conventional electric grinding device (grinder) of representative, to pass through composition
The inner side external gear (central gear) of transfer part is driven with engaging for outside internal gear (inside engaged gear) and by the rotation of motor
Driving force is changed into the revolving round the sun while the motion of rotation of grinding pad.Also, now, times of inner side external gear (central gear)
The tooth of meaning is configured to depict constant track.That is, constant track is depicted in the arbitrary position for being configured to grinding pad.
In the electric grinding device of this class formation, the grinding mechanism mounting surface of grinding pad exist larger rotary oscillation,
Or the grinding mechanism such as emery wheel form accuracy it is low in the case of, sometimes in grinding operation, the specific region of grinding mechanism strength
Ground and surface to be polished sliding contact.As described above, if constant track is depicted in the optional position for being configured to grinding pad, assuming that
Make in the case that electric grinding device movably acts without position, the abrasive areas that the specific region is ground is also permanent
Fixed, amount of grinding significantly increases compared with other abrasive areas.
Therefore, in order to reduce the deviation of the amount of grinding and improve grinding quality, operator is needed while filling electric grinding
Appropriateness movement is put while being ground operation, but is assumed in the case where operator can not make electric grinding device appropriateness mobile,
The reduction of grinding quality can be produced because of the deviation of amount of grinding.Further, since the abrasive areas phase that the specific region is ground
Than in the region on periphery, temperature rising is bigger caused by the sliding contact of grinding mechanism, therefore also worries to produce because of the temperature
Rise it is uneven caused by grind quality reduction.
The content of the invention
The invention problem to be solved
The present invention be in view of various problems present in above-mentioned prior art and complete, it is a kind of super its object is to provide
More conventional new electric grinding device, the electric grinding device can also obtain defined grinding even without high proficiency
Quality, and the deviation of amount of grinding can be reduced, additionally can be by making the temperature of abrasive areas rise equalization to prevent
Temperature rises the reduction of caused grinding quality.
Means for solving the problems
Hereinafter, the present invention will be described.It should be noted that utilize bracket mode to will be readily understood that the present invention
Reference is marked, but therefore the present invention is not defined in the mode of diagram.
Electric grinding device (10) involved in the present invention possesses：Motor (13), it forms driving source；Poewr transmission mechanism
Portion (21), the driving force from the motor (13) is transferred to grinding mechanism by it；And housing (11), its constituent apparatus (10)
Outline and store the motor (13) and the Poewr transmission mechanism portion (21), the Poewr transmission mechanism portion (21) tool
Have：Idler gear (22), its motor output shaft (13a) possessed by with the motor (13) engage；Eccentric main axis (23), its structure
As eccentric shaft, a side (23a) and the idler gear (22) are fixed and are connected, and another side (23b) is from one end
The position that the axis center (α) of side (23a) deviates has axis center (β)；Inner side external gear (25), it is via bearing (24a, 24b)
The another side (23b) of the eccentric main axis (23) is arranged in a manner of it can rotate；Outside internal gear (26), it is regularly
The housing (11) side is arranged on, and is arranged to engage with the inner side external gear (25)；And grinding pad (31), it is set
To be connected with the inner side external gear (25), and the grinding mechanism can be installed on the grinding pad (31), it is characterised in that
The inner side external gear (25) is by the effect of the eccentric main axis (23) and the outside internal gear (26) and while revolving round the sun one
During the rotation of side, whenever the inner side external gear (25) circles in outside internal gear (26) inward turning, the inner side external gear (25)
The position of track of arbitrary tooth can deviate.
In addition, in electric grinding device (10) involved in the present invention, it is preferably, the tooth of the inner side external gear (25)
Number is more than the half of the number of teeth of the outside internal gear (26), and less than the number of teeth of the outside internal gear (26).
In addition, in electric grinding device (10) involved in the present invention, it is preferably, the numerical value A of following mathematical expressions is not
Integer, A=(number of teeth of outside internal gear/(number of teeth of the number of teeth of outside internal gear-inner side external gear))
In addition, be configured in electric grinding device (10) involved in the present invention, the decimal point of the numerical value A with
Value afterwards is 0.2.
Invention effect
In accordance with the invention it is possible to defined grinding quality can also be obtained even without high proficiency by providing, and can
The deviation of amount of grinding is reduced, and can prevent from grinding the reduction of quality by making the temperature of abrasive areas rise equalization
Electric grinding device.
Brief description of the drawings
Fig. 1 is the figure of the situation of the electric grinding device involved by present embodiment from upper face side, is shown in the figure
Go out and the component of upper side is removed and is able to observe that in-built state.
Fig. 2 is the figure for showing the A-A sections in Fig. 1, and shows a left side for the electric grinding device involved by present embodiment
Side vertical section.
Fig. 3 is to show the outside drawing before the electric grinding device involved by present embodiment.
Fig. 4 is to show the partial sectional view behind the electric grinding device involved by present embodiment.
Fig. 5 is the figure for showing the B-B sections in Fig. 2.
Fig. 6 is the figure for showing the C-C sections in Fig. 2.
Fig. 7 is the figure for showing the D-D sections in Fig. 2.
Fig. 8 is the figure for showing the E-E sections in Fig. 3.
Fig. 9 be possessed by the electric grinding device involved by present embodiment inner side external gear by eccentric main axis with
The effect of outside internal gear and revolve round the sun while during rotation, depict the position that a tooth possessed by the inner side external gear passes through
The figure for the track put, and show that the tooth substantially have rotated the track of the situation of three weeks in the internal gear of outside.
Figure 10 is to pass through eccentric main axis in inner side external gear possessed by the electric grinding device involved by present embodiment
Effect with outside internal gear and revolve round the sun while during rotation, depict what a tooth possessed by the inner side external gear passed through
The figure of the track of position, and show the tooth in outside internal gear internal rotation the track of the situation of five weeks.
Description of reference numerals
10 electric grinding devices
11 housings
11a housing body units
11b casing mechanisms incorporating section
11c housing handle parts
13 motors
13a motor drive shafts
13b helical gears
14 electric wires
15 driving forces adjust dial plate
16 control panels
17 switching devices
18 operation buttons
19 maintained switch
21 Poewr transmission mechanism portions
22 idler gears
23 eccentric main axis
23a main shaft parts
23b eccentric main axis axle portions
24a, 24b bearing
25 inner side external gears
26 outside internal gears
27 sealing rings
28 hammer components
31 grinding pads
32 pads
33 bolts
α (main body main shaft axle portion 23a's) axis center
β (eccentric main axis axle portion 23b's) axis center.
Embodiment
Hereinafter, it is used to implement the preferred embodiment of the present invention using brief description of the drawings.It should be noted that following embodiment party
Formula does not limit the invention involved by each claim, in addition, the combination of the feature illustrated in embodiment is entirely not to send out
Necessary to bright solution.
Fig. 1 is the figure of the situation of the electric grinding device involved by present embodiment from upper face side, in the figure, is shown
Go out and the component of upper side is removed and is able to observe that in-built state.In addition, Fig. 2 is to show the A-A sections in Fig. 1
Figure, and the left side vertical section of the electric grinding device involved by present embodiment is shown.In addition, Fig. 3 is to show present embodiment
Outside drawing before involved electric grinding device, Fig. 4 are to show the electric grinding device involved by present embodiment
Partial sectional view below.In addition, Fig. 5 is the figure for showing the B-B sections in Fig. 2, Fig. 6 is to show the C-C sections in Fig. 2
Figure, Fig. 7 is the figure for showing the D-D sections in Fig. 2.In addition, Fig. 8 is the figure for showing the E-E sections in Fig. 3.In addition, Fig. 9 be
Inner side external gear passes through eccentric main axis and the work of outside internal gear possessed by electric grinding device involved by present embodiment
With and revolve round the sun while during rotation, depict the figure of the track for the position that a tooth possessed by the inner side external gear passes through,
And show that the tooth substantially have rotated the track of the situation of three weeks in the internal gear of outside.In addition, Figure 10 is in present embodiment institute
Inner side external gear possessed by the electric grinding device that is related to is by the effect of eccentric main axis and outside internal gear and while revolving round the sun
During the rotation of one side, the figure of the track for the position that a tooth possessed by the inner side external gear passes through is depicted, and shows that the tooth exists
The outside internal gear internal rotation track of the situation of five weeks.It should be noted that in this manual, for convenience of description, such as
The direction of Fig. 1~define as shown in Figure 4 electric grinding device.But the direction is not shown involved by present embodiment
The direction of electric grinding device when in use, the electric grinding device involved by present embodiment can be used with any attitude.
In other words, the direction of " the forward and backward, upper and lower, left and right " shown in Fig. 1~Fig. 4 is merely for convenience and purposes of illustration and determined.
Electric grinding device 10 involved by present embodiment has housing 11 and the installation of the outline of constituent apparatus
Grinding pad 31 in the front of the housing 11.
As shown in Figure 2, housing 11 possesses is shaped generally as T-shaped outer contour shape in left side vertical profile apparent time.
Housing 11 involved by present embodiment includes：Housing body unit 11a, it stores the motor 13 as driving source；Casing mechanism
Incorporating section 11b, it is arranged on housing body unit 11a front, and stores Poewr transmission mechanism portion 21 described later；And housing
Handle part 11c, it bears the holding from operator by being formed extended at both sides downwards from housing body unit 11a, as handle
Hold portion and play function.
Housing body unit 11a, casing mechanism incorporating section 11b, shell for forming the housing 11 involved by present embodiment
Body handle part 11c, is made up of resin material, but for example can also be used and be formed casing mechanism storage with the die cast product of aluminium
Portion 11b sets elastic components such as elastomer etc. to be used to improve operability, security, durability etc. on the surface of each component
Various modes.
Electric wire 14 is connected with the position of the bottom of housing handle part 11c inside, will can be come from not shown
The electric power of external power source supplied via the electric wire 14 to as the motor 13 of driving source.It should be noted that in this embodiment party
In formula, exemplified with the structure for receiving power supply from external power source using electric wire 14, but such as can also use battery pack
It is connected to the position of housing handle part 11c bottom and receives the form of power supply.
In the front side of housing handle part 11c substantial middle position, driving force adjustment dial plate 15 is provided with.The driving force
Adjustment dial plate 15 electrically connects with the control panel 16 shown in Fig. 4, in addition, the control panel 16, which is configured to control, turns into driving
The revolution of motor 13 in source etc..Therefore, when operator makes the handle rotation of driving force adjustment dial plate 15, the rotation amount with handle
And correspondingly control panel 16 sends electric control signal for direction of rotation, can carry out the control of the revolution of motor 13 etc..Change sentence
Talk about, operator can adjust dial plate 15 to perform desired grinding operation by operating driving force.
Switching device 17 is internally provided with housing handle part 11c top, and be connected with the switching device 17
Operation button 18 is set with the state exposed to housing handle part 11c top front.For switching device 17, when operator will
Operation button 18 turns into ON states when being pressed into, it is allowed to the supply electric power of motor 13, can carry out the operating of electric grinding device 10.
On the other hand, when operator releases the press-in of operation button 18, switching device 17 turns into OFF state, towards the electricity of motor 13
Power supply is cut off, and the operating of electric grinding device 10 stops.Opened it should be noted that being provided with holding in switching device 17
19 are closed, the maintained switch 19, which is used to fix the operation button 18 being pressed into, remains such press-in state, will in operator
Operation button 18 be pressed into the state of, if also maintained switch 19 is pressed into, the maintaining body of maintained switch 19 play a role and
The press-in state of operation button 18 is maintained, even if the finger of operator leaves operation button 18, also maintains the ON of switching device 17
State.It should be noted that release operation button 18 press-in state in the case of, by be pressed again by maintained switch 19 and
The stationary state of operation button 18 is released, the initial operating halted state that switching device 17 is in OFF state can be back to.
Storage is arranged on the motor 13 of housing body unit 11a inside so that motor drive shaft 13a is towards horizontal (front and rear) direction
State is set.Motor drive shaft 13a front side shaft end formed with helical gear 13b.Further, it is possible to by the drive from motor 13
The Poewr transmission mechanism portion 21 that power is transferred to the grinding pad 31 that can set the grinding mechanisms such as emery wheel (not shown) is accommodated in and set
Be placed in the casing mechanism incorporating section 11b of housing body unit 11a front side inside, motor drive shaft 13a with by from motor 13
The Poewr transmission mechanism portion 21 that driving force is transferred to grinding pad 31 is connected as passing via motor drive shaft 13a helical gear 13b
Pass driving force.
Poewr transmission mechanism portion 21 involved by present embodiment possesses idler gear 22, the idler gear 22 with motor
The helical gear 13b engagements formed possessed by 13 on motor output shaft 13a.Fixed on the idler gear 22 and be connected with bias
Main shaft 23.Eccentric main axis 23 are configured to the inclined of the main body main shaft axle portion 23a of a side (rear end side) and another side (front)
The heart main shaft axle portion 23b axis bodies joined integrally formed.In addition, the eccentric main axis 23 are configured to eccentric shaft, a side (rear end side)
Main body main shaft axle portion 23a fix and be connected with idler gear 22, and the eccentric main axis axle portion 23b of another side (front)
Deviate in the axis center (shaft centre line shown in reference α) of the main body main shaft axle portion 23a relative to a side (rear end side)
Position there is axis center (shaft centre line shown in reference β).It should be noted that for the eccentric main axis 23, in Fig. 6
In show in further detail.The end axial surface and eccentric main axis axle portion 23b of main body main shaft axle portion 23a front side are shown in Fig. 6
Direction orthogonal to the axial direction vertical section.
In addition, in eccentric main axis axle portion 23b, in other words eccentric main axis 23 another side (front), via two
Bearing 24a, 24b and be provided with inner side external gear 25.Because the inner side external gear 25 is installed on via two bearings 24a, 24b
Eccentric main axis axle portion 23b, therefore it is formed to the state rotated relative to eccentric main axis axle portion 23b.
In inner side, the outside of external gear 25 is provided with outside internal gear 26, and the outside internal gear 26 is fixedly arranged at housing
Mechanism incorporating section 11b and it is set to engage with inner side external gear 25.Figure 5 illustrates these inner side external gears 25 and outside internal tooth
The detailed setting state of wheel 26.
In addition, the front side in inner side external gear 25 connects and is fixed with the grinding pad that can install the grinding mechanisms such as emery wheel
31.In other words, grinding pad 31 is the component being rotated together with inner side external gear 25.In the rear side of grinding pad 31
Pad 32 is provided with, the pad 32 is configured to be rotated together with grinding pad 31.On the other hand, pad 32 more after
Square side, the position that is contacted with the pad 32 being rotated be provided with sealing ring 27.The sealing ring 27 passes through the hands such as bonding
Section is fixedly provided in casing mechanism incorporating section 11b front ends.Therefore, it is fixedly arranged at casing mechanism incorporating section 11b
Sealing ring 27 and the pad 32 that is rotated to be capable of the setting of the state of sliding contact, so two components can coordinate
And play sealing function.In the case of the electric grinding device 10 involved by present embodiment, it is contemplated that installed to grinding pad 31
The grinding mechanisms such as emery wheel, or operation is ground in grinding agents such as emery wheel coating polishing fluids, therefore fill electric grinding
In the case of putting 10 actions, dispersed in a large amount of grounds travels of the peripheral part of grinding pad 31 or dust etc..In order to prevent grounds travel or
Dust enters inside the housing 11 of the electric grinding device 10 used under such operating environment, and sealing ring 27 is sent out with pad 32
Wave function.
In addition, hammer component 28 is provided with the front end portion of eccentric main axis axle portion 23b front side.Involved by present embodiment
And eccentric main axis 23 be configured to eccentric axis body, it is therefore desirable to carry out the adjustment of weight balancing.Therefore, hammer component 28 is set
For weight can be being applied relative to side in opposite direction eccentric main body main shaft axle portion 23a with eccentric main axis axle portion 23b.Need
It is noted that the shape of the hammer component 28 involved by present embodiment is shown specifically in the figure 7, but hammer the shape energy of component 28 into shape
Enough use any-mode.
In addition, the installment state of the grinding pad 31 involved by present embodiment is shown in Fig. 8.As shown in figure 8, this embodiment party
Grinding pad 31 involved by formula is fixedly arranged at the end of the front side of inner side external gear 25 using bolt 33.Now, exist
Pad 32 is clamped between the end of the front side of inner side external gear 25 and grinding pad 31, it is achieved thereby that being slided with sealing ring 27
The stationary state of the stabilization for the pad 32 being rotated in the state of dynamic contact.
It this concludes the description of the primary structure of the electric grinding device 10 involved by present embodiment, but present embodiment institute
The electric grinding device 10 being related to is also equipped with significant structure.That is, in the electric grinding device 10 involved by present embodiment
In, as described above, inner side external gear 25 is installed to be can relative to the eccentric eccentric main axis axle portion 23b of eccentric main axis 23
The state of rotation, also, external gear possessed by inner side external gear 25 is configured to what is engaged with the internal gear of outside internal gear 26
State, the outside internal gear 26 are fixedly arranged at casing mechanism with the state that can not be rotated in the outer circumferential side of inner side external gear 25
Incorporating section 11b.Therefore, the inner side external gear 25 involved by present embodiment passes through eccentric main axis 23 and the work of outside internal gear 26
With and revolve round the sun while the motion of rotation.Also, in the present embodiment, carry out one side revolution in inner side external gear 25
During the motion of one side rotation, whenever the inner side external gear 25 rotates a circle in outside internal gear 26, the inner side external gear 25
The position of the track of arbitrary tooth can deviate.
Also, in order to realize said structure, the electric grinding device 10 involved by present embodiment is configured to, inner side external tooth
The number of teeth of wheel 25 is more than the half of the number of teeth of outside internal gear 26, and less than the number of teeth of outside internal gear 26.
In addition, in order to realize said structure, in the electric grinding device 10 involved by present embodiment, using following numbers
The numerical value A of formula is not the mode of integer.
A=(number of teeth of outside internal gear/(number of teeth of the number of teeth of outside internal gear-inner side external gear))
Specifically, in this case, the number of teeth of the external tooth of inner side external gear 25 is 41, the outside of a side
The number of teeth of the internal tooth of internal gear 26 is 46.If the structure is applied into above-mentioned mathematical expression,
A=(46/ (46-41))=9.2
Numerical value A is not integer.In the case where numerical value A is not integer, in inner side external gear 25 carry out revolve round the sun while
During the motion of rotation, whenever the inner side external gear 25 circles around the inward turning of outside internal gear 26, the inner side external gear 25 it is any
The position of track of tooth can deviate.Also, in the situation that electric grinding device 10 movably acts without position
Under, ground according to the eccentric eccentric main axis axle portion 23b of eccentric main axis 23 offset and the emery wheel for being installed on grinding pad 31 etc.
The diameter of mechanism carrys out the abrasive areas of regulation grinding pad 31, as noted previously, as whenever the inner side external tooth being connected with grinding pad 31
Wheel 25 is circled in the inward turning of outside internal gear 26, and the position of the track of the arbitrary tooth of the inner side external gear 25 is deviateed,
Therefore the optional position of the grinding mechanism such as emery wheel persistently will not be ground to constant position, but whenever rotating a circle, i.e.,
During each rotation, position will necessarily be made to stagger while performing grinding.It should be noted that in the present embodiment, in full
Value shown in value A is such, inner side external gear 25 often revolve round the sun 9.2 circle and rotation 1 is enclosed.
Here, in order to further illustrate above-mentioned action and reference picture 2, Fig. 5, Fig. 9 and Figure 10.Here, in Figure 5 with
Exemplified by the motion track of tooth shown in reference S0, action specification is carried out.First, as motor drive shaft 13a possessed by motor 13
When rotation driving is carried out in a manner of dextrorotation towards front, idler gear 22 carries out rotation drive towards front in a manner of left-handed
Dynamic, therefore, the inner side external gear 25 described in Fig. 5 is revolved round the sun in a counterclockwise direction relative to paper, and main with bias
When being observed on the basis of axle axle portion 23b, inner side external gear 25 is carried out relative to eccentric main axis axle portion 23b to the clockwise direction of paper
Rotate (rotation).Now, because the number of teeth of the external tooth of inner side external gear 25 is 41, the tooth of the internal tooth of the outside internal gear 26 of a side
Number is 46, therefore when public affairs circle inner side external gear 25 in outside internal gear 26, the tooth in Fig. 5 shown in reference S0 because
The difference of the number of teeth be present and position that the clockwise direction to paper in Figure 5 deviates is engaged with outside internal gear 26 again.Fig. 9
In the situation is shown, the position of the reference S0 shown in the track using Fig. 9 of the tooth movement in Fig. 5 shown in reference S0 as
Starting position, the track movement shown in an edge reference L1 to reference S1 position while move.
Also, when inner side external gear 25 is further revolved round the sun, whenever inner side external gear 25 is in outside internal gear 26
When public affairs circle, the tooth in Fig. 5 shown in reference S0 while from Fig. 9 reference S1 position along reference L2,
L3, L4 ..., the movement of L9 track, while continue move towards reference S2, S3, S4 ..., S9 position.Now, the tooth not with
Initial beginning place is reference S0 location overlap, but positioned at the reference S9 institutes slightly offset to side counterclockwise
The position shown.Also, when further being revolved round the sun, the tooth one edge reference L10, L11, L12 ..., L18 ..., L27
Track movement on one side continue to reference S10, S11, S12 ..., S18 ..., S27 progress position movement.Afterwards, from accompanying drawing
Mark S27 position further carries out the movement of identical position, as shown in Figure 10, when total ring in outside internal gear 26
Around 5 weeks when, the tooth returns to the position that initial beginning place is reference S0.Then, position is similarly repeated later
Put movement.It should be noted that in fig.9, in order to be readily appreciated that, position for the tooth after reference S27 and its
Track, omit diagram.Now, the tooth moves during then being moved from reference S0 position to reference S0 position
Track L1~L27 ... as shown in Figure 10, will not depict overlapping track.That is, the track L1~L27 ... moved with the tooth
The track of the optional position of corresponding grinding pad 31 will not depict overlapping track.
Here, as background section explanation, in the electric grinding device involved by prior art, due to forming
Always describe constant track for the optional position of grinding pad, thus the specific region of grinding mechanism strongly with surface to be polished
In the case of sliding contact, it is assumed that electric grinding device is not acted movably, then what the specific region was ground grinds
It is constant to grind region, and amount of grinding significantly increases compared with other abrasive areas.That is, amount of grinding produces relatively large deviation.Therefore, it is
Acquisition good grinding quality, it is necessary to which making electric grinding device, appropriateness mobile action, moving operation on one side needs height on one side
Proficiency.If however, it is configured to the optional position of grinding pad 31 as the electric grinding device 10 involved by present embodiment
The track described constantly is deviateed, even if in this case, the deviation of amount of grinding does not also increase, therefore electric grinding device
10 moving operation does not need high proficiency.Therefore, according to present embodiment, using the teaching of the invention it is possible to provide desired by relatively easily obtaining
Grind the electric grinding device of quality.
It should be noted that in this case, the value after the decimal point of the numerical value A in above-mentioned mathematical expression
It is 0.2.Therefore, in the electric grinding device 10 involved by present embodiment, as described above, to exist whenever inner side external gear 25
26 internal rotation of outside internal gear 5 weeks, the mode of the track repetition of a tooth of inner side external gear 25, is rotated grinding pad 31
Motion.Confirmed according to the experiment that inventor is carried out with prototype：Value after numerical value A decimal point is configured to is 0.2 feelings
Electric grinding device 10 under condition can obtain appropriate grinding quality, so as to specify that inner side external gear 25 under the conditions of this with
The setting of the number of teeth of outside internal gear 26 is appropriate.
More than, the appropriate configuration example of the electric grinding device 10 involved by present embodiment is illustrated.Connect down
Come, carry out electric grinding device 10 action specification of itself involved by present embodiment.
The finger of operator's strong hand holds the housing handle part of the electric grinding device 10 involved by present embodiment
11c, and with it is opposite with strong hand it is hand steered live in housing body unit 11a, thus, it is possible to suitably operate electric grinding device 10.
Electric grinding device 10 involved by present embodiment can be used with any attitude.Can not only be to horizontal relative to ground level
Ground use, for extend along vertical wall or top surface, the complex-curved face combined, can also use.
By installing the grinding mechanisms such as emery wheel to grinding pad 31 operation can be ground.In addition, it can be applied to emery wheel
Cover the grinding agents such as polishing fluid.So, the action for the electric grinding device 10 that operator is carried out prepares to terminate.
Next, when operation button 18 is pressed into by operator with the finger of strong hand side, switching device 17 turns into ON shapes
State, implements the power supply towards motor 13, and motor 13 proceeds by driving.Now, by using maintained switch 19, even if behaviour
Author makes finger leave operation button 18, and operation button 18 is also fixed, and can form the ON states of maintenance switching device 17
State.In addition, by the way that in the driving of motor 13 or before driving, the handle for making driving force adjustment dial plate 15 by operator rotates,
The control of revolution thus, it is possible to carry out motor 13 etc..The adjustment can suitably change according to condition of grinding object etc..
When motor 13 proceeds by driving, the possessed motor output shaft 13a of motor 13 is rotated by driving.In motor
The shaft end of output shaft 13a front side forms the idler gear 22 in Poewr transmission mechanism portion 21 with being somebody's turn to do formed with helical gear 13b
Helical gear 13b is engaged.When the rotation driving by motor output shaft 13a is rotate idler gear 22, due among this
Fixed on gear 22 and be connected with eccentric main axis 23, therefore eccentric main axis 23 are also rotated.Here, the structure of eccentric main axis 23
As following eccentric shaft, the main body main shaft axle portion 23a of a side (rear end side) is fixed and is connected to idler gear 22, and separately
The eccentric main axis axle portion 23b of one side (front) is in the axle relative to the main body main shaft axle portion 23a of a side (rear end side)
The position that the heart (shaft centre line shown in reference α) deviates has axis center (shaft centre line shown in reference β).Cause
This, when the main body main shaft axle portion 23a of eccentric main axis 23 is rotated together with idler gear 22, axis center is relative to master
The eccentric main axis axle portion 23b that body main shaft axle portion 23a deviates carries out revolution motion.
On the eccentric main axis axle portion 23b for carrying out revolution motion, inner side external tooth is installed via two bearings 24a, 24b
Wheel 25.In other words, inner side external gear 25 is installed as the state relative to eccentric main axis axle portion 23b rotary motions freely.In addition,
In inner side, the outside of external gear 25 is provided with outside internal gear 26, and the outside internal gear 26 is fixedly arranged at casing mechanism storage
Portion 11b and it is set to engage with inner side external gear 25.In addition, fixed on inner side external gear 25 and be connected with grinding pad 31.Therefore,
Inner side external gear 25 involved by present embodiment and grinding pad 31 by the effect of eccentric main axis 23 and outside internal gear 26 and
Progress is revolved round the sun while the motion of rotation.
It should be noted that when being ground the driving of pad 31, as described above, by being fixedly provided in grinding pad 31
Rear side pad 32 and be fixedly provided in casing mechanism incorporating section 11b front ends sealing ring 27 sliding contact
Effect, play for the sealing inside housing 11, therefore prevent grounds travel or dust etc. to enter in housing 11 and in device
Middle generation unfavorable condition.
In addition, the effect of the hammer component 28 set using the front end portion of the front side in eccentric main axis axle portion 23b, is realized
Revolve round the sun while the motion state of the stabilization of the grinding pad 31 of rotation.
In addition, in the electric grinding device 10 involved by present embodiment, the numerical value A using following mathematical expressions is not whole
Several modes.
A=(number of teeth of outside internal gear/(number of teeth of the number of teeth of outside internal gear-inner side external gear))
For example, in the present embodiment, the number of teeth of the external tooth of inner side external gear 25 is 41, the outside internal gear 26 of a side
The number of teeth of internal tooth is 46 teeth.If the structure is applied into above-mentioned mathematical expression,
A=(46/ (46-41))=9.2
Numerical value A is not integer.In the case where numerical value A is not integer, in inner side external gear 25 carry out revolve round the sun while
During the motion of rotation, whenever the inner side external gear 25 circles in the inward turning of outside internal gear 26, the inner side external gear 25 it is any
The position of track of tooth deviate, therefore different rails is depicted in the arbitrary position of grinding pad 31 in each rotation
Mark.That is, different tracks is depicted in each rotation in the arbitrary position of grinding pad 31.In addition, in the feelings of present embodiment
Under condition, the value that numerical value A decimal point is later is 0.2.In this case, the track that the arbitrary position of grinding pad 31 is depicted with
Whenever 5 weeks modes repeated of rotation are moved.Appropriate grinding quality can be obtained by having proven to the structure, so it is preferred that.
So, in the present embodiment, inner side external gear 25 carry out revolve round the sun while rotation motion when, whenever this
Inner side external gear 25 is circled in the inward turning of outside internal gear 26, and the position of the track of the arbitrary tooth of the inner side external gear 25 can
Deviate.Also, in order to implement the structure, by the way of the numerical value A of following mathematical expressions is not integer.
A=(number of teeth of outside internal gear/(number of teeth of the number of teeth of outside internal gear-inner side external gear))
In addition, being learnt by the checking carried out based on prototype, the value that preferred value A decimal point is later is 0.2.
According to the electric grinding device 10 with above-mentioned significant structure, even if not having in operator as prior art
In the case of having high proficiency, defined grinding quality can be also obtained.Particularly, it is electronic according to involved by present embodiment
Lapping device 10, due to describing different tracks in each rotation by the optional position of grinding pad 31 in a manner of repeat on one side
Revolve round the sun the motion of one side rotation, therefore be not in the optional position for the grinding mechanism for being installed on grinding pad 31 always to identical
The situation that region is ground.Therefore, the problem of the prior art of the deviation increase of amount of grinding is eliminated, further, since can
Reduce the misgivings for producing the reduction of grinding quality occurred by rise uneven of the temperature of abrasive areas, so with existing skill
Art, which compares, can further improve grinding quality.That is, conventional new electric grinding device is surmounted in accordance with the invention it is possible to provide
10, defined grinding quality can be also obtained even without high proficiency, and the deviation of amount of grinding can be reduced, and can
By making the temperature of abrasive areas rise equalization to prevent temperature from rising the reduction of caused grinding quality.
The preferred embodiment of the present invention is this concludes the description of, but the technical scope of the present invention is not limited to above-mentioned embodiment
The scope of record.Various changes or improvement can be applied to above-mentioned embodiment.
For example, in the above-described embodiment, the number of teeth for illustrating the external tooth of inner side external gear 25 is in the outside of 41, one side
The number of teeth of the internal tooth of gear 26 is that 46 situation illustrates.However, the number of teeth is only that can realize one embodiment of the present of invention.
In the present invention, as long as the numerical value A of above-mentioned mathematical expression is not the mode of integer, then optional tooth number can be used.
In addition, for example in the above-described embodiment, have as shown in Figure 2 exemplified with housing 11 and regarded in left side vertical profile
When be shaped generally as the situation of T-shaped outer contour shape.However, the hull shape of the electric grinding device of the present invention can be with
It is arbitrary shape.For example, the shell with the outer contour shape that inverted L-shaped shape is shaped generally as in left side vertical profile apparent time can be used
The any-modes such as body.
It is clear that according to the record of claims, is applied with such change or improved mode is also contained in this
The technical scope of invention.
Claims (4)
1. a kind of electric grinding device, possesses：
Motor, it forms driving source；
Poewr transmission mechanism portion, the driving force from the motor is transferred to grinding mechanism by it；And
Housing, the outline of its constituent apparatus and stores the motor and the Poewr transmission mechanism portion,
The Poewr transmission mechanism portion is configured to have：
Idler gear, its motor output shaft possessed by with the motor engage；
Eccentric main axis, eccentric shaft is consisted of, a side is fixed and is connected with the idler gear, and another side is from one
The position that the axis center of side deviates has axis center；
Inner side external gear, it is arranged on the another side of the eccentric main axis via bearing in a manner of it can rotate；
Outside internal gear, it is fixedly provided in the housing side, and is arranged to engage with the inner side external gear；And
Grinding pad, it is arranged to be connected with the inner side external gear, and the grinding mechanism can be installed on the grinding pad,
Characterized in that,
Revolved round the sun in the inner side external gear by the effect of the eccentric main axis and the outside internal gear while rotation
When, whenever the inner side external gear circles in the outside internal gear inward turning, the track of the arbitrary tooth of the inner side external gear
Position can deviate.
2. electric grinding device according to claim 1, it is characterised in that
The number of teeth of the inner side external gear is more than the half of the number of teeth of the outside internal gear, and is less than the outside internal gear
The number of teeth.
3. electric grinding device according to claim 1 or 2, it is characterised in that
The numerical value A of following mathematical expressions is not integer,
A=(number of teeth of outside internal gear/(number of teeth of the number of teeth of outside internal gear-inner side external gear)).
4. electric grinding device according to claim 3, it is characterised in that
The value that the decimal point of the numerical value A is later is 0.2.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016102355A JP2017209738A (en) | 2016-05-23 | 2016-05-23 | Motor-driven polishing device |
| JP2016-102355 | 2016-05-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107433516A true CN107433516A (en) | 2017-12-05 |
Family
ID=60459059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710260161.8A Pending CN107433516A (en) | 2016-05-23 | 2017-04-19 | Electric grinding device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2017209738A (en) |
| CN (1) | CN107433516A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112936100A (en) * | 2021-02-25 | 2021-06-11 | 宇环数控机床股份有限公司 | Eccentric burnishing and polishing device |
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|---|---|---|---|---|
| JPH05337810A (en) * | 1992-06-08 | 1993-12-21 | Makita Corp | Polishing machine |
| CN2239863Y (en) * | 1996-01-26 | 1996-11-13 | 国营保定工具厂 | Disk friction lapping head of portable valve lapping machine |
| CN1511002A (en) * | 2001-05-23 | 2004-07-07 | ���Ͽع�����˾ | End-rounding devices and methods for end-rounding |
| CN1632347A (en) * | 2004-12-29 | 2005-06-29 | 西安理工大学 | Rotation and torsional vibration compound movement mechanism based on planetary drive with small teeth difference |
| CN101251166A (en) * | 2007-02-22 | 2008-08-27 | 住友重机械工业株式会社 | Oscillating internally meshing planetary gear system and method for manufacturing eccentric body shaft |
| CN103567842A (en) * | 2012-08-07 | 2014-02-12 | 苏州宝时得电动工具有限公司 | Grinding power tool |
-
2016
- 2016-05-23 JP JP2016102355A patent/JP2017209738A/en not_active Withdrawn
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2017
- 2017-04-19 CN CN201710260161.8A patent/CN107433516A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05337810A (en) * | 1992-06-08 | 1993-12-21 | Makita Corp | Polishing machine |
| CN2239863Y (en) * | 1996-01-26 | 1996-11-13 | 国营保定工具厂 | Disk friction lapping head of portable valve lapping machine |
| CN1511002A (en) * | 2001-05-23 | 2004-07-07 | ���Ͽع�����˾ | End-rounding devices and methods for end-rounding |
| CN1632347A (en) * | 2004-12-29 | 2005-06-29 | 西安理工大学 | Rotation and torsional vibration compound movement mechanism based on planetary drive with small teeth difference |
| CN101251166A (en) * | 2007-02-22 | 2008-08-27 | 住友重机械工业株式会社 | Oscillating internally meshing planetary gear system and method for manufacturing eccentric body shaft |
| CN103567842A (en) * | 2012-08-07 | 2014-02-12 | 苏州宝时得电动工具有限公司 | Grinding power tool |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112936100A (en) * | 2021-02-25 | 2021-06-11 | 宇环数控机床股份有限公司 | Eccentric burnishing and polishing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2017209738A (en) | 2017-11-30 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180504 Address after: Hiroshima County, Japan Applicant after: KYOCERA Industrial Tools Co., Ltd. Address before: Hiroshima County, Japan Applicant before: Ryobi Ltd. |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171205 |