Dual trace eccentric structure polishing machine
The present invention relates to a kind of electric tool, specifically a kind of dual trace eccentric structure polishing machine.
Polishing machine and angle grinder belong to electric tool, and polishing machine is by bases such as body, polishing disk, polishing fabric and polishing covers
This element is constituted.Motor is fixed on body, and the tapered sleeve of fixed polishing disk is connected by screw with motor reel.Polishing is knitted
Thing is fastened on polishing disk by lasso, after motor is by the switch connection power activation on base, just can be with hand to sample
Apply pressure to be polished on the polishing disk of rotation.Angle grinder is exactly the disc wheel and rubber sand using rotation at a high speed
Wheel, wire wheel etc. are ground to hardware, cut, being eliminated rust, polishing processing.Angle grinder is adapted to cut, grind and brush
Grind metal and stone material.
In the market overwhelming majority polishing machine is all coaxial concentric polishing machine, relatively elaborate when using, while being also required to non-
Often the human users of specialty, could use.Further, since coaxial concentric design, the load of polishing directly acts on output end,
To equipment（Motor）Service life has a significant impact.
In addition, electric tool currently on the market, otherwise the single function of possessing angle mill, otherwise single possess polishing
Function.In order to cost-effective there is provided the utilization rate of single equipment, expand equipment and use scope, thus design one kind can be simultaneously
Possess angle mill and the device of polishing machine function, also seem very necessary.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of easy to operate laborsaving, simple in construction, service life phase
To long dual trace eccentric structure polishing machine.
Motor, motor connection are provided with a kind of dual trace eccentric structure polishing machine, including body, the body
Output shaft, it also includes eccentric block, rolling bearing, eccentric shaft and polishing disk, and the eccentric block top is provided with to be coordinated with output shaft
Upper hole, eccentric block bottom is provided with the lower opening coordinated with eccentric shaft, upper hole and lower opening decentraction；The eccentric shaft include axle body and
Lower end, lower end is arranged on axle body with diameter greater than axle body diameter, rolling bearing inner ring, and axle body upper end is provided with axle elasticity
Back-up ring, housing washer is fixed by screws on eccentric block；The eccentric shaft is fixedly connected with polishing disk.
Preferably, being provided with external screw thread on described output shaft, it is provided with what is coordinated with external screw thread on the eccentric block in hole
Preferably, the polishing disk upper end is provided with being provided with externally threaded fixing axle, eccentric shaft center be provided with it is above-mentioned solid
The threaded interior hole that dead axle coordinates.
In the present invention, eccentric shaft axle body and rolling bearing integral installation are in eccentric block lower opening.According to eccentric shaft axle body
The depth of length and eccentric block lower opening needs, and bearing can be selected one or more.Preferably, the rolling bearing is including upper
Bearing and lower bearing two, upper bearing (metal) and lower bearing sleeve are located on eccentric shaft axle body.
Preferably, described rolling bearing is deep groove ball bearing.
Preferably, it also includes polishing cover, the polishing cover and body clamping, eccentric block is located in polishing cover.Throw
Light shield is used to cover the components such as eccentric block, to protect the personal safety of operator.
Preferably, it also includes the angle mill component being selectively connected with body, the angle mill component is from top to bottom
Including wheel guard, top board, grinding wheel, lower platen, the wheel guard and body clamping, the center difference of top board and grinding wheel
Through hole is provided with, through-hole diameter is not less than output shaft diameter, and lower platen, which has, be provided with external screw thread on threaded interior hole, output shaft, pushes
It is threadedly coupled between plate and output shaft.
The present invention has following beneficial effects：
（1）Designed using eccentric block structure, polishing disk both rotates around output shaft, is also rotated around eccentric shaft, so as to form double
Track curve movement, it is in use, very laborsaving, efficient, and quality of finish is substantially increased, also greatly reduce
User's is professional；
（2）Component is ground by dismantling angle in the polishing assemblies such as eccentric block, rolling bearing, eccentric shaft and polishing disk, replacement, can
So that sanding machine is switched into angle grinder, the function of product is added, equipment is expanded and uses scope.
Brief description of the drawings
Fig. 1 is the dual trace eccentric structure polishing machine of embodiment one（Except body）Decomposition texture schematic diagram；
Fig. 2 is the assembling structure schematic diagram of the dual trace eccentric structure polishing machine of embodiment one；
Fig. 3 is the fundamental diagram of the dual trace eccentric structure polishing machine of embodiment one；
Fig. 4 is the structural representation of the embodiment of the present invention two.
The present invention will be further described with instantiation below in conjunction with the accompanying drawings, but protection scope of the present invention is not limited to
Motor is provided with reference picture 1,2, a kind of dual trace eccentric structure polishing machine, including body 1, the body,
Motor connects output shaft 11, and it also includes polishing cover 51, eccentric block 61, rolling bearing 63, eccentric shaft 65 and polishing disk 7,
The top of eccentric block 61 is provided with the upper hole coordinated with output shaft 11, and the bottom of eccentric block 61 is provided with the lower opening coordinated with eccentric shaft,
Upper hole and lower opening decentraction；The eccentric shaft includes axle body 651 and lower end 652, and lower end 652 is straight with diameter greater than axle body 651
Footpath, rolling bearing inner ring is arranged on axle body, and axle body upper end is provided with circlip for shaft 62, and housing washer passes through screw
64 are fixed on eccentric block 61.
The upper end of polishing disk 7 is provided with and above-mentioned fixing axle 71 provided with externally threaded fixing axle 71, eccentric shaft center is provided with
The threaded interior hole of cooperation, the eccentric shaft 65 is screwed with polishing disk 7 to be connected.
The interior spiral shell for being provided with and coordinating with external screw thread in hole on external screw thread, the eccentric block 61 is provided with described output shaft 11
In the present invention, eccentric shaft axle body 651 and the integral installation of rolling bearing 63 are in eccentric block lower opening.The rolling bearing
63 include upper bearing (metal) and lower bearing two, and upper bearing (metal) and lower bearing sleeve are located on eccentric shaft axle body 651.Described rolling bearing 63
For deep groove ball bearing.
The polishing cover 51 and the clamping of body 1, eccentric block 61 are located in polishing cover 51.
The assembling process of the polishing machine of dual trace eccentric structure of the present invention is：
Two deep groove ball bearings 63 are loaded into circlip for shaft 62 on eccentric shaft 65, card, deep groove ball bearing 63 will be installed
With the eccentric shaft of circlip for shaft on card 62, it is fitted into the lower opening of eccentric block 61；Two major part screws 64 are screwed on eccentric block to consolidate
It is fixed, make the outer perimeter section of compression deep groove ball bearing 63；Finally, by polishing disk 7 by being screwed on eccentric shaft.Polishing disk 7
Can be changed the outfit sizes specification.
The operation principle of the polishing machine of dual trace eccentric structure of the present invention is：
Reference picture 3, motor drives output shaft 11 to rotate, and the pivot of output shaft 11 is O1, so as to drive polishing
Disk 7 does a circular movement locus, and this movement locus formed is first curve movement T1 of dual trace polishing machine（With
Dotted line is represented）；After polishing disk 7 is rotated, due to the pivot O1 of output shaft 11 and eccentric shaft pivot O2 decentraction (eccentric throws
E), under the influence of centrifugal force, polishing disk 7 can form dual trace eccentric structure simultaneously around eccentric shaft pivot O2 rotations
The Article 2 curve movement T2 of polishing machine（It is indicated by the solid line）.
Reference picture 4, by the polishing cover 51 of embodiment one, eccentric block 61, rolling bearing 63, eccentric shaft 65 and polishing disk 7 etc.
Component is unloaded, and established angle grinds component on body 1, you can obtain angle grinder.
Motor, motor connection output shaft 11, institute are provided with a kind of angle grinder, including body 1, the body 1
State angle mill component includes wheel guard 52, top board 2, grinding wheel 3, lower platen 4 from top to bottom, and the wheel guard 52 blocks with body 1
Connect, the center of top board 2 and grinding wheel 3 has through hole, and through-hole diameter has spiral shell not less than output shaft diameter, lower platen 4
External screw thread is provided with line endoporus, output shaft 11, is threadedly coupled between lower platen 4 and output shaft.
The assembling process that the present invention switches to angle grinder function is：
Body is loaded onto into wheel guard 52, wheel guard 52 is connected on the protecgulum of body 1 by the way of quick locking.Successively
Threaded endoporus on top board 2, grinding wheel 3, lower platen 4, lower platen 4 is installed, by the threaded interior hole, lower platen 4 is tightened in
On output shaft, and top board 2 and grinding wheel 3 are compressed, make to fix with output shaft.