Mechanical arm
Technical field
This utility model relates to a kind of mechanical arm, is espespecially driven the mechanical arm person of running by motor.
Background technology
Pressing, mechanical arm is the most most widely used in the device of automated machine, owing to mechanical arm has multiple pass
Joint links, and can carry out linear displacement or three-dimensional motion, accordingly, it is capable to replace manpower to be used in the working environment of danger, or uses
In promoting Precision Machining action, thus it is widely used in various field.
Existing mechanical arm is mainly by setting a transmission component in the articulated section of swing arm set and another swing arm set, and passes
Dynamic assembly includes motor, gear and belt, and can turn by the wrist body by motor driven gear wheel and then with belt drive swing arm set
Dynamic, but, more expenditure cost must be produced in belt adjustment with maintenance with the mechanical arm of motor and belt drive.
For improving above-mentioned disappearance, therefore TaiWan, China announces M520446 patent, discloses a kind of " mechanical arm ", its bag
Containing base, arm body and auxiliary support bar, one end of this arm body is articulated in base, and auxiliary support bar has pivot end and support
End, and support end is articulated in arm body, and moving relative to adjusting in pivot end, so, by auxiliary support bar adjust flexible also
Change length, and then utilize auxiliary support bar to assist the first arm and the action of the second arm.
Separately, TaiWan, China announces M520448 patent, discloses a kind of " mechanical arm ", and multiple starts are assembled and set by it
In pedestal and rotating be combined with each other, and a start group sets steering gear wherein, this steering gear be combined with rigid shaft and
Pivot member, rigid shaft is provided with shaft coupling, and shaft coupling is provided with driving means, so, by rigid shaft by power
Automatic drive device is transferred to steering gear, and then drives pivot member to rotate, with the service life of prolonged mechanical arm.
Utility model content
Because existing machinery arm is by the way of motor and belt drive swing arm swing, need to be in belt adjustment and maintenance
The expenditure cost that upper generation is more, and the disappearance still had much room for improvement.
Therefore the purpose of this utility model system is by combining train of reduction gears and bearing in the drive shaft of motor, to replace
Belt drives swing arm set swings, and saves the cost of belt adjustment and maintenance.
For reaching object defined above, this utility model provides a kind of mechanical arm, it is characterised in that comprise a pedestal, parallel
Swing arm set and at least one vertical swing arm set, wherein:
This parallel swing arm set comprises again:
One first motor, is placed in this pedestal, and has a drive shaft;
One first flange, is locked in above this first motor;
One first train of reduction gears, is locked in above this first flange, and forms one above this first train of reduction gears
Groove, is provided with a perforation in this groove;
One clutch shaft bearing, this clutch shaft bearing outer rim ovalize, and it is placed on the drive shaft of this first motor;
One screw tightening, after being sequentially arranged in the perforation of this first train of reduction gears, this clutch shaft bearing and this first flange
It is locked in the drive shaft of this first motor;And
One pivot block, is locked in this first train of reduction gears;
This at least one vertical swing arm set comprises again:
One pivotal arm, is articulated in this pivot block;
One second motor, is placed in this pivotal arm, and has a drive shaft;
One second flange, is locked in above this second motor;
One second train of reduction gears, is locked in this second flange and this pivot block respectively, and in this second train of reduction gears
Top forms a groove, is provided with a perforation in this groove;
One second bearing, this second bearing outer rim ovalize, and it is placed on the drive shaft of this second motor;And
One screw tightening, after being sequentially arranged in the perforation of this second train of reduction gears, this second bearing and this second flange
It is locked in the drive shaft of this second motor.
Described mechanical arm, wherein, is provided with a pad between this first train of reduction gears and this clutch shaft bearing.
Described mechanical arm, wherein, is provided with a pad between this second train of reduction gears and this second bearing.
Described mechanical arm, wherein, this pivot block combines the surface of this first train of reduction gears and is provided with a projection, and makes
This projection is corresponding to the groove of this first train of reduction gears.
Described mechanical arm, wherein, this pivot block combines the surface of this second train of reduction gears and is provided with a projection, and makes
This projection is corresponding to the groove of this second train of reduction gears.
Based on above-mentioned, when making the drive shaft turns of the first motor, drive be positioned at the first train of reduction gears and the first flange it
Between clutch shaft bearing rotate, due to clutch shaft bearing outer rim ovalize, when therefore rotating, only part edge is contacted with first and subtracts
Speed gear train, so, drives the first train of reduction gears to rotate by the centrifugal force of clutch shaft bearing and interlocks pivot block towards level side
To rotation, and the same drive shaft by the second motor drives the second bearing rotary, and drives the second train of reduction gears to interlock
Pivotal arm rotates towards vertical direction, so, reaches the effect driving mechanical arm axial rotary.
Accompanying drawing explanation
Fig. 1 is axonometric chart of the present utility model.
Fig. 2 is the three-dimensional exploded view of the parallel swing arm set of this utility model.
Fig. 3 is the three-dimensional exploded view of this utility model another angle of parallel swing arm set.
Fig. 4 is the three-dimensional exploded view of the vertical swing arm set of this utility model.
Fig. 5 is phantom of the present utility model.
Fig. 6 A~Fig. 6 B figure are the schematic diagrams of this utility model bearing rotary.
Fig. 7 is the schematic diagram that the parallel swing arm set of this utility model rotates.
Fig. 8 is the schematic diagram that the vertical swing arm set of this utility model rotates.
Description of reference numerals: 1-mechanical arm;2-pedestal;The parallel swing arm set of 3-;32-the first motor;321-drive shaft;
33-the first flange;34-the first train of reduction gears;341-groove;342-bores a hole;35-clutch shaft bearing;36-screw tightening;37-pivots
Seat;371-projection;372-projection;38-pad;39-locking part;The vertical swing arm set of 4-;41-pivotal arm;42-the second motor;
421-drive shaft;43-the second flange;44-the second train of reduction gears;441-groove;442-bores a hole;45-the second bearing;46-spiral shell
Firmware;47-pad;48-locking part;A-space.
Detailed description of the invention
For making the technology contents reaching this utility model purpose can have more complete announcement, hereby describe in detail in herein below,
And see also the graphic and figure number taken off:
First, referring to shown in Fig. 1, be axonometric chart of the present utility model, it is parallel that this mechanical arm 1 comprises a pedestal 2,
Swing arm set 3 and at least one vertical swing arm set 4.Wherein, parallel swing arm set 3 comprises one first motor 32,1 first flange 33,
First train of reduction gears 34, clutch shaft bearing 35, screw tightening 36 and a pivot block 37 (coordinating refering to Fig. 2~Fig. 3);This is years old
One motor 32 is placed in pedestal 2, and has a drive shaft 321, and this first flange 33 is locked in above the first motor 32, and this is first years old
Train of reduction gears 34 is locked in above the first flange 33, and forms a groove 341 above the first train of reduction gears 34, and in recessed
A perforation 342 it is provided with in groove 341, this clutch shaft bearing 35 outer rim ovalize, and it is placed on the drive shaft 321 of the first motor 32,
This screw tightening 36 locks after being sequentially arranged in the perforation 342 of the first train of reduction gears 34, clutch shaft bearing 35 and the first flange 33
In the drive shaft 321 of the first motor 32, this pivot block 37 be locked in the first train of reduction gears 34 preferably, be positioned at the first deceleration
A pad 38 it is provided with between gear train 34 and clutch shaft bearing 35.
And vertically swing arm set 4 comprises pivotal arm 41,1 second motor 42,1 second flange 43,1 second reduction gearing
Group 44,1 second bearing 45 and a screw tightening 46 (coordinating refering to Fig. 4);This pivotal arm 41 is articulated in pivot block 37, and this is second years old
Motor 42 is placed in pivotal arm 41, and has a drive shaft 421, and this second flange 43 is locked in above the second motor 42, and this is years old
Two train of reduction gears 44 are locked in above the second flange 43, and form a groove 441 above the second train of reduction gears 44, and in
A perforation 442 it is provided with in groove 441, this second bearing 45 outer rim ovalize, and it is placed on the drive shaft of the second motor 42
421, after this screw tightening 46 is sequentially arranged in perforation the 442, second bearing 45 and second flange 43 of the second train of reduction gears 44
Be locked in the drive shaft 421 of the second motor 42 preferably, between the second train of reduction gears 44 and the second bearing 45, be provided with one
Pad 47.
Secondly, please referring still to Fig. 2~Fig. 3 and coordinate shown in Fig. 5, when parallel swing arm set 3 assembles, will by locking part 39
First motor 32 is locked in the first flange 33, and the first train of reduction gears 34 and the first flange 33 is locked with plural number locking part 39
In pedestal 2, between the first train of reduction gears 34 and the first flange 33, it is equipped with clutch shaft bearing 35, and on clutch shaft bearing 35
Side is provided with a pad 38, sequentially to wear the first train of reduction gears 34, pad 38, clutch shaft bearing 35 and first by screw tightening 36
After flange 33, it is locked in the drive shaft 321 of the first motor 32, is locked in first after finally locking part 39 being worn pivot block 37 and subtracts
Speed gear train 34.And (coordinate refering to Fig. 4) when vertically swing arm set 4 assembles, with locking part 48, second motor 42 is locked in second
Flange 43, and with plural number locking part 48, second train of reduction gears 44 and the second flange 43 are locked in pivotal arm 41, it is positioned at second
It is equipped with the second bearing 45 between train of reduction gears 44 and the second flange 43, and is arranged over a pad 47 in the second bearing 45,
After sequentially wearing the second train of reduction gears 44, pad the 47, second bearing 45 and the second flange 43 by screw tightening 46, it is locked in
The drive shaft 421 of the second motor 42, is finally locked on pivot block 37 the second train of reduction gears 44 by locking part 48, makes pivot
Arm 41 is articulated in pivot block 37.
Then, please referring still to Fig. 5, when parallel swing arm set 3 operates, the drive shaft 321 of the first motor 32 is made to rotate, with
Time drive clutch shaft bearing 35 between the first train of reduction gears 34 and the first flange 33 to rotate, due to clutch shaft bearing 35 outer rim
Ovalize (coordinates refering to Fig. 6 A~Fig. 6 B), and when therefore rotating, clutch shaft bearing 35 only part edge can be contacted with first and subtract
Speed gear train 34 and can in rotate time produce space A, to utilize the centrifugal force of clutch shaft bearing 35 to drive the first train of reduction gears 34
Rotate, and the first train of reduction gears 34 rotate simultaneous linkage pivot block 37 make its in the horizontal direction on pedestal 2 rotate (as figure
Shown in 7).
When vertical swing arm set 4 operates, make the drive shaft 421 of the second motor 42 rotate, simultaneously drive and be positioned at the second deceleration
The second bearing 45 between gear train 44 and the second flange 43 rotates, and due to the second bearing 45 outer rim ovalize, (cooperation refers to
Fig. 6 A~Fig. 6 B), when therefore rotating, the second bearing 45 only part edge can be contacted with the second train of reduction gears 44 and can be in turning
Space A is produced, to utilize the centrifugal force of the second bearing 45 to drive the second train of reduction gears 44 to rotate, and at the second reducing gear time dynamic
Wheels 44 rotate simultaneous linkage pivotal arm 41, make pivotal arm 41 pivot (as shown in Figure 8) towards vertical direction in pivot block 37.
Additionally, in an embodiment of the present utility model, be positioned at pivot block 37 and combine the surface of the first train of reduction gears 34
It is provided with a projection 371 (Fig. 5 please be look back), and makes projection 371 correspond to the groove 341 of the first train of reduction gears 34, and be positioned at pivot
Swivel base 37 combines the surface of the second train of reduction gears 44 and is provided with a projection 372, and makes projection 372 corresponding to the second train of reduction gears
The groove 441 of 44, when making pivot block 37 be locked in the first train of reduction gears 34 and the second train of reduction gears 44, can rely on projection
371 (372) position with groove 341 (441), increase stability during mechanical arm 1 start.
So, clutch shaft bearing 35 and second is driven by the drive shaft 321 (421) of the first motor 32 and the second motor 42
Bearing 45, and drive the first train of reduction gears 34 and the second train of reduction gears 44 to revolve by clutch shaft bearing 35 and the second bearing 45
Turn, make pivot block 37 to rotate in the horizontal direction, and pivotal arm 41 can rotate towards vertical direction, and can be by vertical swing arm set 4
The driving structure in portion is applied to mechanical arm 1 and arbitrarily needs the swing arm set of vertical oscillation, swings with belt drives swing arm set to replace
Structure, save the cost of belt adjustment and maintenance.
Described above it is merely exemplary for this utility model, and nonrestrictive, those of ordinary skill in the art
Understand, in the case of the spirit and scope limited without departing from claim, can many modifications may be made, change or equivalence, but
Within falling within protection domain of the present utility model.