CN109719701A - Mechanical arm configuration, numerically-controlled machine tool rest, numerically-controlled machine tool - Google Patents
Mechanical arm configuration, numerically-controlled machine tool rest, numerically-controlled machine tool Download PDFInfo
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- CN109719701A CN109719701A CN201711061328.4A CN201711061328A CN109719701A CN 109719701 A CN109719701 A CN 109719701A CN 201711061328 A CN201711061328 A CN 201711061328A CN 109719701 A CN109719701 A CN 109719701A
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- 238000003754 machining Methods 0.000 claims description 12
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- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 10
- 230000007246 mechanism Effects 0.000 abstract description 4
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Abstract
The present invention provides a kind of mechanical arm configurations, numerically-controlled machine tool rest, numerically-controlled machine tool.The machinery arm configuration includes: fixed platform；Multiple telescopic supporting rods, each telescopic supporting rod includes fixing seat cylinder, moving sleeve, driving motor and guide screw movement pair, the end of multiple fixing seat cylinders circumferentially is connected in fixed platform, the first end of moving sleeve is set in fixing seat cylinder, driving motor is fixedly installed in fixing seat cylinder, guide screw movement pair includes lead screw and is sheathed on lead screw upper leading screw nut, and the end of lead screw is fixedly connected with the drive shaft of driving motor, and the first end of moving sleeve is fixedly connected on feed screw nut；The second end of motion platform, multiple moving sleeves circumferentially is connected on motion platform.The technical issues of position adjusts variation demand between cutter and workpiece to be processed in process is had been unable to meet using the freedom degree dimension that the technical program is able to solve pose adjustment possessed by serial mechanism applied by numerically-controlled machine tool in the prior art.
Description
Technical field
The invention belongs to numerically controlled processing equipment technical fields, are to be related to a kind of mechanical arm configuration, numerical control machine more specifically
Bed knife rest, numerically-controlled machine tool.
Background technique
In the various lathes applied by numerical control processing, although the big, flexibility with working range of traditional serial mechanism
Good feature, but machining accuracy is lower, rigidity is poor, machined surface freedom degree is low, be no longer satisfied infant industry environment for
Process the requirements at the higher level of part quality.Especially in terms of Machining of Curved Surface, by many mechanical equipment institutes in infant industry environment
The complexity of processing curve on the Assembly part of application, applied serial mechanism is had on numerically-controlled machine tool in the prior art
The freedom degree dimension of pose adjustment be no longer satisfied in process adjustment variation in position between cutter and workpiece to be processed
Demand.
Summary of the invention
The purpose of the present invention is to provide a kind of mechanical arm configurations, numerically-controlled machine tool rest, numerically-controlled machine tool, to solve existing skill
The freedom degree dimension of pose adjustment possessed by serial mechanism applied by numerically-controlled machine tool has been unable to meet in process in art
Position adjusts the technical issues of variation demand between cutter and workpiece to be processed.
To achieve the above object, the technical solution adopted by the present invention is that: provide a kind of mechanical arm configuration, comprising: fixed flat
Platform；Multiple telescopic supporting rods, each telescopic supporting rod include fixing seat cylinder, moving sleeve, driving motor and guide screw movement pair, multiple
The end of fixing seat cylinder circumferentially is connected in fixed platform, and the end of fixing seat cylinder is movably connected in fixed flat
The first end of platform, moving sleeve can be movably set in fixing seat cylinder along center axis thereof direction relative to fixing seat cylinder, be driven
Dynamic motor is fixedly installed in fixing seat cylinder, and guide screw movement pair includes lead screw and is sheathed on lead screw upper leading screw nut, the end of lead screw
Portion is fixedly connected with the drive shaft of driving motor, and the first end of moving sleeve is fixedly connected on feed screw nut；Motion platform is more
The second end of a moving sleeve circumferentially is connected on motion platform, and the second end of each moving sleeve is operatively connected to
Motion platform.
Further, the diameter for the circumference that the end of multiple fixing seat cylinders is surrounded on the stationary platform is greater than multiple movements
The diameter for the circumference that the second end of sleeve is surrounded on the moving platform.
Further, multiple telescopic supporting rods are even number, and in multiple telescopic supporting rods in pairs；At same group
In, the spacing distance of the fixing seat cylinder of two telescopic supporting rods being connected between the end of fixed platform is less than the movement of the two
The spacing distance of sleeve being connected between the second end of motion platform；In two adjacent groups, two adjacent telescopic supporting rods
The moving sleeve that both is greater than of the spacing distance being connected between the end of fixed platform of fixing seat cylinder be connected to movement
Spacing distance between the second end of platform.
Further, each telescopic supporting rod further includes auxiliary pedestal, and auxiliary pedestal is fixedly installed in fixing seat cylinder, auxiliary
Helping pedestal includes motor mount and motion guide portion, and driving motor is fixedly installed in motor mount, and feed screw nut is equipped with
Guide groove, guide groove are coupled on the guide rail in motion guide portion.
According to the another aspect of the technical program, a kind of numerically-controlled machine tool rest is provided.The numerically-controlled machine tool rest includes branch
Support part and tool mounting portion for cutter to be fixedly mounted, the support portion are mechanical arm configuration above-mentioned, tool mounting portion installation
In on the motion platform of mechanical arm configuration.
Further, the upright projection of the tool mounting portion central point of the view field on surface and movement on the moving platform
The central point of platform upper surface is overlapped.
Further, in each telescopic supporting rod of mechanical arm configuration, the end of the fixing seat cylinder of each telescopic supporting rod
Portion is connect by the first universal coupling with the fixed platform of mechanical arm configuration, the second end of the moving sleeve of each telescopic supporting rod
It is connected by the motion platform of the second universal coupling and telescopic supporting rod.
Further, numerically-controlled machine tool rest further includes measuring device, and measuring device includes fixed reference portion and multiple reflections
Fixed ginseng is circumferentially arranged in sensor, the fixed upper surface that motion platform is fixedly installed on referring to portion, multiple reflective sensors
According to the side in portion, multiple reflective sensors are respectively to fixed reference portion emission measurement light beam.
Further, the quantity of multiple reflective sensors is three, and the central point line of three reflective sensors is formed
Side triangle.
According to the another aspect of the technical program, a kind of numerically-controlled machine tool is provided.The numerically-controlled machine tool includes processing platform, knife
Frame and fixture for clamping workpiece to be processed, fixture are set on processing platform, and knife rest is set on processing platform to treat
Workpieces processing carries out machining, and knife rest is numerically-controlled machine tool rest above-mentioned.
During carrying out machining to workpiece to be processed, by the mechanical arm configuration of application in rectangular coordinate system in space
The ability of space multifreedom motion in O-xyz, can be in cutting process for the different to be added of workpiece to be processed
The planform of work curved surface is adjusted corresponding cutter-orientation to cutter so that machining process cutter will not with to
Processing curve interferes situation, meets in process adjustment variation demand in relative position between cutter and workpiece to be processed
Problem.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the schematic diagram of the internal structure of the telescopic supporting rod of the mechanical arm configuration of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the numerically-controlled machine tool rest comprising mechanical arm configuration of the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the numerically-controlled machine tool of the embodiment of the present invention.
Wherein, each appended drawing reference in figure:
10, fixed platform；20, telescopic supporting rod；21, fixing seat cylinder；22, moving sleeve；23, driving motor；24, lead screw
Kinematic pair；241, lead screw；242, feed screw nut；30, motion platform；25, pedestal is assisted；251, motor mount；252, it moves
Guide part；2520, guide rail；101, support portion；102, tool mounting portion；40, measuring device；41, fixed reference portion；42, it reflects
Sensor；26, grating is measured；27, shaft coupling；131, artifact-driven motor；200, workpiece to be processed；140, frid is installed；
121, mechanical arm configuration；122, first knife rest is adjusted；123, second knife rest is adjusted；124, third adjusts knife rest；131, fixture drives
Dynamic motor；130, clamping frame.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element
On one element or indirectly on another element.When an element is known as " being connected to " another element, it can
To be directly to another element or be indirectly connected on another element.
It is to be appreciated that term " length ", " width ", "upper", "lower", "front", "rear", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "top", "bottom", "inner", "outside" is that orientation based on the figure or position are closed
System, is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have
Specific orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
As depicted in figs. 1 and 2, the mechanical arm configuration of the present embodiment includes fixed platform 10, motion platform 30 and multiple stretches
Contracting support rod 20, each telescopic supporting rod 20 include fixing seat cylinder 21, moving sleeve 22, driving motor 23 and guide screw movement pair 24,
The end of multiple fixing seat cylinders 21 circumferentially is connected in fixed platform 10, and the end of fixing seat cylinder 21 is movably connected
It can be movably set to along center axis thereof direction relative to fixing seat cylinder 21 in the first end of fixed platform 10, moving sleeve 22
In fixing seat cylinder 21, driving motor 23 is fixedly installed in fixing seat cylinder 21, and guide screw movement pair 24 includes lead screw 241 and is sheathed on
The end of 241 upper leading screw nut 242 of lead screw, lead screw 241 is fixedly connected with the drive shaft of driving motor 23 by shaft coupling 27, and
The first end of moving sleeve 22 is fixedly connected on feed screw nut 242, and the second end of multiple moving sleeves 22 circumferentially is connected to
On motion platform 30, and the second end of each moving sleeve 22 is operatively connected to motion platform 30.Also, by the mechanical arm knot
Structure is applied in numerically-controlled machine tool rest, thus the numerically-controlled machine tool rest includes support portion 101 and the knife for cutter to be fixedly mounted
Has mounting portion 102, that is to say, that the support portion 101 is mechanical arm configuration above-mentioned, and tool mounting portion 102 is installed on mechanical arm
On the motion platform 30 of structure.
Rectangular coordinate system in space O-xyz is established by benchmark face of the upper surface of motion platform 30, with multiple telescopic supporting rods
The center of circle for the circumference that 20 second end is surrounded on motion platform 30 is the origin of rectangular coordinate system in space O-xyz, and movement is flat
The upper surface of platform 30 is the plane of x-axis, y-axis formation, at this time upper surface of the z-axis perpendicular to motion platform 30.In the present embodiment
In mechanical arm configuration, when the upper surface of fixed platform 10 is parallel with the upper surface of motion platform 30, multiple telescopic supporting rods 20
First end the center of circle of circumference is formed by fixed platform 10 and second end is formed by circumference on motion platform 30
The center of circle is c-axially disposed in z-axis.In this way, in the tool mounting portion using the numerically-controlled machine tool rest for being equipped with the technical program offer
102 come install cutter with to workpiece to be processed carry out machining during, so that it may the space right-angle according to above-mentioned foundation
Coordinate system O-xyz is programmed design, to carry out automatic manipulation process using the digital control system of numerically-controlled machine tool.
The mechanical arm configuration of the present embodiment is in action process, and driving motor 23 starts work, to drive 241 turns of lead screw
Dynamic, the rotational motion of lead screw 241 drives feed screw nut 242 to move along the central axial direction of lead screw 241, passes through lead screw spiral shell at this time
It is flexible relative to fixing seat cylinder 21 that mother 242 pushes moving sleeve 22, to push motion platform 30 to act, when multiple retractable supports
It cooperates between the expanding-contracting action of bar 20, so that motion platform 30 has in above-mentioned rectangular coordinate system in space O-xyz
The ability of space multifreedom motion, at this point, the cutter applied on the numerically-controlled machine tool rest of the machinery arm configuration also just has
The ability of space multifreedom motion in the above-mentioned rectangular coordinate system in space O-xyz.Therefore, to workpiece to be processed
It is how free by space of the mechanical arm configuration of application in rectangular coordinate system in space O-xyz during 200 carry out machining
The ability of movement is spent, it can be in cutting process for the planform of the difference curved surface to be processed of workpiece to be processed 200
Corresponding cutter-orientation is adjusted to cutter, so that the process cutter in machining will not be interfered with curved surface to be processed
Situation meets the problem of relative position adjusts variation demand between cutter and workpiece to be processed in process.
In order to which more stably and firmly to the driving motor 23 in mechanical arm configuration, each telescopic supporting rod 20 is also wrapped
Auxiliary pedestal 25 is included, auxiliary pedestal 25 is fixedly installed in fixing seat cylinder 21, and auxiliary pedestal 25 includes motor mount and movement
Guide part 252, driving motor 23 are fixedly installed in motor mount, and feed screw nut 242 is equipped with guide groove, guide groove cooperation peace
On guide rail 2520 loaded on motion guide portion 252.After starting driving motor 23, the drive shaft of driving motor 23 passes through shaft coupling
Device 27 drives lead screw 241 to rotate, and is threadedly engaged since feed screw nut 242 passes through with lead screw 241, and on feed screw nut 242
Guide groove is limited by guide rail 2520, thus feed screw nut 242 can be converted to the rotational motion of lead screw 241 along guide rail
2520 extending direction (or central axial direction along lead screw 241) moves in a straight line, and moves so that feed screw nut 242 be made to drive
Moving sleeve 22 does straight-line displacement output.
In the mechanical structure of the present embodiment, the end of fixing seat cylinder 21 is being connected in fixed platform 10, will moved
During the end of sleeve 22 is connected on motion platform 30, the end of multiple fixing seat cylinders 21 is enclosed in fixed platform 10
At the diameter of circumference be greater than the diameter of circumference that the second end of multiple moving sleeves 22 surrounded on motion platform 30.This
Sample can not only realize the flexible modulation ability of mechanical arm configuration, and using telescopic supporting rod 20 from motion platform 30 to admittedly
The connection structure form that the direction of fixed platform 10 extends out, so that telescopic supporting rod 20 is during adjusting posture with higher
Structural strength keeps the stability of cutter after the completion of adjustment, and on the other hand, such structure design also being capable of reduction fortune low as far as possible
Relative scale size between moving platform 30 and workpiece to be processed 200 is conducive to the motion platform 30 using the machinery arm configuration
It carries out that small cutter is installed to carry out processing micro-structure curved surface to workpiece to be processed 200.
It certainly, can also be by multiple fixing seat cylinders 21 according to the design structure feature of actually required numerically-controlled machine tool rest
The diameter of circumference that is surrounded in fixed platform 10 of end be less than the second end of multiple moving sleeves 22 in motion platform 30
On the diameter of circumference that is surrounded, can equally guarantee that motion platform 30 is adjusted relative to the relative motion of fixed platform 10 in this way
Flexibility.
As shown in Fig. 2, multiple telescopic supporting rods 20 in mechanical arm configuration are even number, and in multiple telescopic supporting rods 20
In pairs；In the same set, the fixing seat cylinders 21 of two telescopic supporting rods 20 is connected between the end of fixed platform 10
Spacing distance be less than both moving sleeve 22 the second end for being connected to motion platform 30 between spacing distance；Adjacent
Interval distance in two groups, between the end for being connected to fixed platform 10 of the fixing seat cylinder 21 of two adjacent telescopic supporting rods 20
The spacing distance between the second end for being connected to motion platform 30 from the moving sleeve 22 for being greater than the two.In the present embodiment,
The quantity of even number telescopic supporting rod 20 is six, and the end of the fixing seat cylinder 21 of six telescopic supporting rods 20 is in fixed platform 10
Three the first link positions of upper formation, the line between the center of three the first link positions then form equilateral triangle, and
And the end of the moving sleeve 22 of six telescopic supporting rods 20 is in forming three the second link positions on motion platform 30, three the
Line between the center of two link positions then forms equilateral triangle, in the present embodiment, three the first link positions with
It is arranged interlacedly between three the second link positions.
Also, this implementation in six telescopic supporting rods 20 of mechanical arm configuration, the fixation of each telescopic supporting rod 20
The end of seat cylinder 21 is connect by the first universal coupling with the fixed platform 10 of mechanical arm configuration, the shifting of each telescopic supporting rod 20
The second end of moving sleeve 22 is connect by the second universal coupling with the motion platform 30 of telescopic supporting rod 20.Pass through the first universal hinge
Chain and the second universal coupling, when six telescopic supporting rods 20 carry out cooperation expanding-contracting action between each other, motion platform at this time
30 have the spatial movement ability of six degree of freedom in rectangular coordinate system in space O-xyz, i.e. motion platform 30 has respectively along sky
Between in rectangular coordinate system O-xyz x-axis, y-axis, z-axis move in a straight line, and can make rotating motion around x-axis, y-axis, z-axis so that
Motion platform 30 can arbitrarily change position and attitude in rectangular coordinate system in space O-xyz.
In the numerically-controlled machine tool rest of the present embodiment, the upright projection of tool mounting portion 102 is in 30 upper surface of motion platform
The central point of view field be overlapped with the central point of 30 upper surface of motion platform, so, it is possible easily to utilize mechanical arm knot
Rectangular coordinate system in space O-xyz set by the upper surface of motion platform 30 in structure is straight as the space of the numerically-controlled machine tool rest
Angular coordinate system O-xyz, at this point, the throwing when vertical projection of the central point of 30 upper surface of motion platform i.e. motion platform 30
The central point in shadow zone domain is the origin O of rectangular coordinate system in space O-xyz.
As shown in Fig. 2, the numerically-controlled machine tool rest of the present embodiment further includes measuring device 40, measuring device 40 includes fixed ginseng
According to portion 41 and multiple reflective sensors 42, specifically, the quantity of multiple reflective sensors 42 is three, three reflective sensors 42
Central point line form equilateral triangle, the fixed upper surface that motion platform 30 is fixedly installed on referring to portion 41, three reflect
The side in fixed reference portion 41 is circumferentially arranged in sensor 42, and three reflective sensors 42 emit to fixed reference portion 41 respectively
Measuring beam.(i.e. adjustment movement during being adjusted by position and attitude of the telescopic supporting rod 20 to motion platform 30
The cutter-orientation on tool mounting portion 102 on platform 30), in order to monitor the correctness of cutter-orientation adjustment in real time,
Thus by three reflective sensors, 42 fixations referring to 41 emission measurement light beam of portion (measuring beam can be infrared beam,
It is also possible to laser beam), then measuring beam is reflected back on corresponding reflective sensor 42 by fixation again referring to portion 41, this
When, each corresponding reflective sensor 42 measures the position and attitude in the fixed reference portion 41 after being adjusted posture, that is, passes through
Coordinate points x of the fixed reference portion 41 in rectangular coordinate system in space O-xyz after adjustment1, y1, z1, then calculate tool mounting portion
Coordinate position in rectangular coordinate system in space O-xyz locating for cutter on 102.
The numerically-controlled machine tool rest is applied in numerically-controlled machine tool, as shown in figure 3, the numerically-controlled machine tool includes processing platform, knife
Frame and fixture for clamping workpiece to be processed, fixture are set on processing platform, and knife rest is set on processing platform to treat
Workpieces processing carries out machining, and knife rest is the numerically-controlled machine tool rest above-mentioned including mechanical arm configuration 121.Also, numerical control machine
Bed further includes numerical control control unit, is electrically connected between driving motor 23 and numerical control control unit in mechanical arm configuration, numerically-controlled machine tool rest
Reflective sensor 42 and numerical control control unit between be electrically connected, and for drive fixture rotation fixture driving motor 131 with
The electrical connection of numerical control control unit, the fixture driving motor 131 are fixedly installed on clamping frame 130, which is fixedly connected on
On support portion 101, and workpiece to be processed 200 of the clamping on fixture is oppositely arranged with the cutter on tool mounting portion 102.When
During carrying out machining to workpiece to be processed 200 on numerically-controlled machine tool, in order to adapt to the shape of complicated curved surface to be processed
Shape feature, the mutual expansion fit of the telescopic supporting rod 20 that mechanical arm configuration is adjusted by driving, thus adjust cutter with
Opposite cutter-orientation between curved surface to be processed avoids that movement interference occurs between cutter and curved surface to be processed.And it is adjusting
During cutter-orientation, by the location information in the fixed reference portion 41 of measurement, (i.e. it is straight to be located at space to reflective sensor 42 for cutter
Location information in angular coordinate system O-xyz), and handled by the analysis of numerical control control unit, so that it is practical to further calculate acquisition
Position deviation of the cutter relative to curved surface to be processed, the driving motor of mechanical arm configuration is then controlled by numerical control control unit again
The 23 each moving sleeves 22 of control carry out deviation compensation, and enabling cutter to be unlikely to generation during adjustment leads to waste product
Machining deviation so that process caused by deviation be in the margin of tolerance of permission always.
During carrying out deviation compensation measurement, also using measurement grating 26 to each in the mechanical arm configuration of the present embodiment
The linear movement distance of feed screw nut 242 measures in a telescopic supporting rod 20, and the measurement grating 26 and numerical control control unit
Electrical connection, and conjunction measuring device 40 carries out deviation compensation measurement simultaneously.
As shown in figure 3, numerically-controlled machine tool further includes that the first adjusting knife rest 122 and second adjusts knife rest 123, first adjusts knife rest
122 include the first adjusting motor, and the first adjusting motor is connected to Installing machine tool frame 110, and first adjusts motor and numerical control control unit
Electrical connection, second, which adjusts knife rest 123, adjusts motor including second, and the second adjusting motor is electrically connected with numerical control control unit, and second adjusts
Section knife rest 123 is connected to the driving end of the first adjusting motor, and first, which adjusts motor, drives the second adjusting knife rest 123 predetermined along first
Direction linear movement；When fixed platform 10 is set to cutter clamping frame, fixed platform 10 is connected to the drive of the second adjusting motor
Moved end, alternatively, cutter clamping frame 130 is connected to the second adjusting motor when fixed platform 10 is set to clamping workpiece frame 130
Drive end；Second, which adjusts motor, drives mechanical arm configuration 121 or cutter clamping frame 130 to move linearly along the second predetermined direction.More
Further, numerically-controlled machine tool further includes that third adjusts knife rest 124, and it includes that third adjusts motor, third tune that third, which adjusts knife rest 124,
Section knife rest 124 is fixedly connected on Installing machine tool frame 110 by installing frid 140, and third adjusts motor and numerical control control unit electricity
Connection, entire third adjust knife rest 124 and can move on the guide groove of installation frid 140 to carry out position adjusting.First adjusts
Section knife rest 122 is fixedly connected on third and adjusts on the driving end of motor, and third adjusts motor and drives first to adjust knife rest 122 along the
The linear movement of three predetermined directions or clamping workpiece frame 130 are fixedly connected on third and adjust in the driving of motor, and third is adjusted
Motor drives clamping workpiece frame 130 to move linearly along third predetermined direction；Third predetermined direction is perpendicular to the first predetermined direction
The mobile straight line of mobile straight line and the second moving direction is formed by plane.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.
Claims (10)
1. a kind of machinery arm configuration characterized by comprising
Fixed platform (10)；
Multiple telescopic supporting rods (20), each telescopic supporting rod (20) include fixing seat cylinder (21), moving sleeve (22), driving
Motor (23) and guide screw movement are secondary (24), and the end of multiple fixing seat cylinders (21) circumferentially is connected to the fixed platform
(10) on, and the end of the fixing seat cylinder (21) is movably connected in the fixed platform (10), the moving sleeve
(22) first end can movably be set to the fixing seat cylinder relative to the fixing seat cylinder (21) along center axis thereof direction
(21) in, the driving motor (23) is fixedly installed in the fixing seat cylinder (21), and the guide screw movement secondary (24) includes silk
Thick stick (241) and it is sheathed on the lead screw (241) upper leading screw nut (242), the end of the lead screw (241) and the driving motor
(23) drive shaft is fixedly connected, and the first end of the moving sleeve (22) is fixedly connected on the feed screw nut (242)；
The second end of motion platform (30), multiple moving sleeves (22) circumferentially is connected to the motion platform (30)
On, and the second end of each moving sleeve (22) is operatively connected to the motion platform (30).
2. machinery arm configuration as described in claim 1, which is characterized in that the end of multiple fixing seat cylinders (21) is described
The second end that the diameter of the circumference surrounded in fixed platform (10) is greater than multiple moving sleeves (22) is flat in the movement
The diameter of the circumference surrounded on platform (30).
3. machinery arm configuration as described in claim 1, which is characterized in that multiple telescopic supporting rods (20) are even number,
And in multiple telescopic supporting rods (20) in pairs；In the same set, two telescopic supporting rods (20) is described solid
Spacing distance between the end for being connected to the fixed platform (10) of reservation cylinder (21) is less than the moving sleeve of the two
(22) the spacing distance between the second end for being connected to the motion platform (30)；In two adjacent groups, two adjacent institutes
State the interval distance between the end for being connected to the fixed platform (10) of the fixing seat cylinder (21) of telescopic supporting rod (20)
The spacing distance between the second end for being connected to the motion platform (30) from the moving sleeve (22) for being greater than the two.
4. machinery arm configuration as described in claim 1, which is characterized in that each telescopic supporting rod (20) further includes auxiliary
Pedestal (25), the auxiliary pedestal (25) are fixedly installed in the fixing seat cylinder (21), and the auxiliary pedestal (25) includes electricity
Machine mounting base (251) and motion guide portion (252), the driving motor (23) are fixedly installed in the motor mount (251),
The feed screw nut (242) is equipped with guide groove, and the guide groove is coupled in the guide rail of the motion guide portion (252)
(2520) on.
5. a kind of numerically-controlled machine tool rest, the tool mounting portion (102) including support portion (101) and for cutter to be fixedly mounted,
It is characterized in that, which is mechanical arm configuration described in any one of Claims 1-4, the tool mounting portion
(102) it is installed on the motion platform (30) of the mechanical arm configuration.
6. numerically-controlled machine tool rest as claimed in claim 5, which is characterized in that the upright projection of the tool mounting portion (102)
In the central point of the view field of the motion platform (30) upper surface and the central point weight of the motion platform (30) upper surface
It closes.
7. numerically-controlled machine tool rest as claimed in claim 6, which is characterized in that in each retractable support of the mechanical arm configuration
In bar (20), the end of the fixing seat cylinder (21) of each telescopic supporting rod (20) passes through the first universal coupling and the machinery
The fixed platform (10) of arm configuration connects, and the second end of the moving sleeve (22) of each telescopic supporting rod (20) passes through second
Universal coupling is connect with the motion platform (30) of the telescopic supporting rod (20).
8. numerically-controlled machine tool rest as claimed in claim 7, which is characterized in that the numerically-controlled machine tool rest further includes measuring device
(40), the measuring device (40) includes fixed reference portion (41) and multiple reflective sensors (42), the fixation reference portion
(41) it is fixedly installed on the upper surface of the motion platform (30), multiple reflective sensors (42) are circumferentially arranged in described
The side of fixed reference portion (41), multiple reflective sensors (42) are respectively to described fixed reference portion (41) emission measurement light
Beam.
9. numerically-controlled machine tool rest as claimed in claim 8, which is characterized in that the quantity of multiple reflective sensors (42) is
Three, the central point line of three reflective sensors (42) forms equilateral triangle.
10. a kind of numerically-controlled machine tool, including processing platform, knife rest and fixture for clamping workpiece to be processed, the fixture setting
In on the processing platform, the knife rest is set on the processing platform to carry out machining to the workpiece to be processed,
It is characterized in that, the knife rest is numerically-controlled machine tool rest described in any one of claim 5 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711061328.4A CN109719701A (en) | 2017-10-31 | 2017-10-31 | Mechanical arm configuration, numerically-controlled machine tool rest, numerically-controlled machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711061328.4A CN109719701A (en) | 2017-10-31 | 2017-10-31 | Mechanical arm configuration, numerically-controlled machine tool rest, numerically-controlled machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109719701A true CN109719701A (en) | 2019-05-07 |
Family
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117300340A (en) * | 2023-10-25 | 2023-12-29 | 哈尔滨工业大学 | Curved surface laser processing device and method based on multi-axis parallel motion platform |
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