CN209668031U - A kind of accurate linear reciprocating mechanism of cantilevered high load platform - Google Patents
A kind of accurate linear reciprocating mechanism of cantilevered high load platform Download PDFInfo
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- CN209668031U CN209668031U CN201920306919.1U CN201920306919U CN209668031U CN 209668031 U CN209668031 U CN 209668031U CN 201920306919 U CN201920306919 U CN 201920306919U CN 209668031 U CN209668031 U CN 209668031U
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- platform
- lead screw
- load platform
- top plate
- linear reciprocating
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Abstract
The utility model proposes a kind of accurate linear reciprocating mechanisms of cantilevered high load platform, including operating platform, the top of operating platform is equipped with reference platform, reference platform is fixed on the top of operating platform by the support plate at left and right sides of operating platform upper surface, the top of reference platform is equipped with top plate, guide post and lead screw are connected between top plate and reference platform, lead screw is driven by servo motor, load platform is equipped between reference platform and top plate, load platform is equipped with lead screw nut, lead screw nut is set on lead screw, the guide through hole that guide post passes through on load platform is connect with top plate, load platform is equipped with buffer unit in two sides up and down, the upper surface of reference platform is equipped with the first photoelectric sensor device, top plate bottom side is additionally provided with the second photoelectric sensor device, first photoelectric sensor device and the second photoelectric sensor device are set relatively It sets, load platform is equipped with anti-dazzling screen.The utility model is capable of the object of heavier loads, sports safety and reliability；It is compact-sized, save space.
Description
Technical field
The utility model relates to the field of test technology, and in particular to a kind of accurate linear reciprocation of cantilevered high load platform
Movement mechanism.
Background technique
Reciprocating motion is mechanical movement reciprocating.Realize that the mode moved back and forth includes crank link mechanism, cam machine
Structure, gear and rack teeth mechanism and screw mechanism etc..Wherein, due to gearing friction resistance is small, transmission efficiency is high, movement is steady,
The features such as reversible transmission, screw mechanism is in the reciprocating motion of relatively large distance, high-precision and wide velocity interval using more.
Single screw list pillar construction and mariages bumper structure all be used to realize platform straight reciprocating motion.Both structures exist
Realize when platform moves back and forth there is certain limitation.In monofilament bumper structure, displacement platform is cantilever position, it is possible to provide larger
Test and operating space.But stage+module, on lead screw and column, positioning action area is smaller, and local pressure is larger.When
When cantilever component in the horizontal direction is larger, the rigidity of lead screw is insufficient, and cantilever can be swung around column in the horizontal direction, causes whole
Body mechanism damage, the precision deterioration of lead screw, influences the result validity of test.The platform shift reciprocately that mariages bumper structure is realized,
Due to the absolute being of installation error, double lead-screw can not absolute synchronization movement, cause system torsional deflection, generate flywheel moment and
Vibration will lead to lead screw bending, deformation, even fracture etc..Meanwhile the door type structure of double lead-screw limits test and operation is empty
Between.
Utility model content
The utility model aims to solve at least the technical problems existing in the prior art, especially innovatively proposes a kind of outstanding
The accurate linear reciprocating mechanism of arm-type high load platform, to improve the precision and intensity of load of detection.
In order to realize the above-mentioned purpose of the utility model, the utility model provides a kind of essence of cantilevered high load platform
Close linear reciprocating mechanism, including operating platform, the top of the operating platform are equipped with reference platform, and the reference platform is logical
The support plate crossed at left and right sides of operating platform upper surface is fixed on the top of operating platform, and the top of the reference platform is equipped with top
Plate is connected with guide post and lead screw between the top plate and reference platform, the lead screw is driven by servo motor, the benchmark
Load platform is equipped between platform and top plate, the load platform is equipped with lead screw nut, and the lead screw nut is set in lead screw
On, the guide through hole that the guide post passes through on load platform is connect with top plate, and two sides are equipped with slow above and below the load platform
The upper surface of flushing device, the reference platform is equipped with the first photoelectric sensor device, and the bottom side of the top plate is additionally provided with the second photoelectricity
Sensing device, first photoelectric sensor device and the second photoelectric sensor device are oppositely arranged, and the load platform, which is equipped with, to be hidden
Mating plate.
Load platform is for carrying object, object of reference of the reference platform as the lowest limit position of load platform, top plate
For the object of reference of high limit position.Servo motor is used to provide power for lead screw, and synchronous transmission device is used for servo motor
Power pass to lead screw.The combination of lead screw and lead screw nut forms the elevating mechanism of load platform, for transmitting load platform
It moves up or declines.First photoelectric sensor device, the second photoelectric sensor device combine to form limiting device with anti-dazzling screen three, are used for
Protect safety travel range when load platform work.The two sides up and down of load platform are equipped with buffer unit for preventing from loading
Platform is hit with top plate, reference platform.
In above scheme: being connected with synchronous transmission device between the lead screw and the output shaft of servo motor.
In above scheme: the servo motor and synchronous transmission device is arranged at reference platform and operating platform is surrounded
Space in, and the bottom end of the lead screw pass through reference platform.Servo motor and synchronous drive mechanism are arranged in reference platform
Occupied space can be reduced between operating platform, it is compact-sized succinct.
In above scheme: the synchronous transmission device include two driving wheels and connection two driving wheels synchronous belt, two
A driving wheel is connected to the output shaft of servo motor and the bottom end of lead screw.The combination of the driving wheel, synchronous belt of use
Combination relative to sprocket wheel, chain is not easy stuck, and adjustability is strong.
In above scheme: two driving wheels are respectively a major diameter driving wheel and a path driving wheel, wherein greatly
Diameter driving wheel is connected to the bottom end of lead screw, and path driving wheel is connected on the output shaft of servo motor.Path driving wheel is driving
Wheel, major diameter driving wheel are driven wheel, and path driving wheel drives major diameter driving wheel to be capable of providing biggish transmission ratio, exportable larger
Thrust.
In above scheme: the synchronous transmission device further includes tensioning wheel.Tensioning wheel avoids synchronizing for being tensioned synchronous belt
Band fluffs due to being elongated after long-time use and influences transmission quality.
In above scheme: the guide post is two, and is relatively arranged on the left and right sides of lead screw, two guide posts
The distance between lead screw three is equal.It can be avoided the rotation of load platform, the distance between three using two guide posts
The equal restraint assembly for being capable of forming shape distribution in equilateral triangle, allows load platform to be in a kind of stable state, raising is held
Stability when load.
In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are: platform linear reciprocation is transported
Dynamic test and operation solid space are larger, and can do spatial spread, and thrust is larger, are capable of the object of heavier loads；By same
The cooperation of step band, two driving wheels and tensioning wheel can guarantee to be driven validity, and avoid the synchronous belt after working long hours loose
It is dynamic；Servo motor is capable of providing height and is accurately displaced, the first photoelectric sensor, the second photoelectric sensor and two-way high load buffering
Device ensure that the sports safety and reliability of the platform；Compact overall structure saves space；Straight reciprocating motion is stablized, low noise
Sound, it is without friction.
The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description
In become obvious, or recognized by the practice of the utility model.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will
Become obvious and be readily appreciated that, in which:
Fig. 1 is the structural perspective of the utility model；
Fig. 2 is the front view of Fig. 1.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model
Limitation.
As shown in Figure 1 and Figure 2, a kind of accurate linear reciprocating mechanism of cantilevered high load platform, including operating platform
1, the top of operating platform 1 is equipped with reference platform 2, and reference platform 2 is solid by the support plate at left and right sides of 1 upper surface of operating platform
It is scheduled on the top of operating platform 1.The top of reference platform 2 is equipped with top plate 9, and lead screw 11 is connected between top plate 9 and reference platform 2
The guide post 4 of the left and right sides of lead screw 11, the distance between 11 three of two guide posts 4 and lead screw phase are relatively arranged on two
Deng.
Lead screw 11 is driven by servo motor 14, is connected with Synchronous Transmission between lead screw 11 and the output shaft of servo motor 14
Device.Servo motor 14 and synchronous transmission device are arranged in the space that reference platform 2 and operating platform 1 are surrounded, and silk
The bottom end of thick stick 11 passes through reference platform 2.
Synchronous transmission device includes the synchronous belt 15 of two driving wheels of two driving wheels and connection, and two driving wheels connect respectively
Connect the bottom end of the output shaft and lead screw 11 in servo motor 14.Two driving wheels are respectively that a major diameter driving wheel 12 and one are small
Diameter driving wheel 16, wherein major diameter driving wheel 12 is connected to the bottom end of lead screw 11, and path driving wheel 16 is connected to servo motor 14
On output shaft.Synchronous rotation device further includes tensioning wheel 13, and tensioning wheel is located at the front side of synchronous belt.
Load platform 6 is equipped between reference platform 2 and top plate 9, load platform 6 is equipped with lead screw nut 10, lead screw nut
10 are set on lead screw 11, and the guide through hole that guide post 4 passes through on load platform 6 is connect with top plate 9, and guide post 4 and load are flat
Sliding bearing is also connected between platform.About 6 two sides of load platform are equipped with buffer unit 7, and buffer unit 7 is for preventing from loading
Platform 6 hits reference platform 2 and top plate 9.The upper surface of reference platform 2 is equipped with the first photoelectric sensor device 3, the bottom side of top plate 9
It is additionally provided with the second photoelectric sensor device 8, the first photoelectric sensor device 3 and the second photoelectric sensor device 8 are oppositely arranged, the first photoelectricity
Sensing device 3, the second photoelectric sensor device 8 are separately fixed on reference platform 2 and top plate 9 by opto-electronic sensor support.
Load platform 6 is equipped with anti-dazzling screen 5.
In use, servo motor 14 drives the major diameter synchronizing wheel 12 of lead screw to rotate by path synchronizing wheel 16, can export
Biggish transmission ratio.Lead screw 11 drives load platform 6 to move, wherein by lead screw nut 10, the rotation of lead screw 11 is converted to
The linear motion of load platform 6 in the vertical direction, driving load platform 6 move up and down.When moving to the second light on load platform 6
When at electrical sensor apparatus 8, due to being sheltered from the spy light of the second photoelectric sensor device 8 by anti-dazzling screen 5, then servo motor 14 is controlled
Stop motion limits the high limit position of load platform 6 by the second photoelectric sensor device 8；Similarly, pass through the first photoelectricity
Sensing device 3 limits the lowest limit position of load platform 6, can effectively limit the motion range of load platform 6, makes every time
The motion range of test is consistent, and reduces the error in measurement.
The beginning of two guide posts 4 and lead screw 11 is in that triangle state is fixed on reference platform 2, two 4 Hes of guide post
The end of lead screw 11 is in that triangle state is fixed on top plate 9, so far, two guide posts 4, a lead screw 11, a reference platform 2
The full freedom degree restraint assembly outside except axis of load platform 6 is constituted with a top plate 9.Load platform 6 in the component is
The component by biggish horizontal direction is interfered, high-precision, high load movement still may be implemented within the scope of safety travel.
While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that:
These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principles of the present invention and objective
And modification, the scope of the utility model are defined by the claims and their equivalents.
Claims (7)
1. a kind of accurate linear reciprocating mechanism of cantilevered high load platform, it is characterised in that: including operating platform (1),
The top of the operating platform (1) is equipped with reference platform (2), and the reference platform (2) passes through operating platform (1) upper surface or so
The support plate of two sides is fixed on the top of operating platform (1), and the top of the reference platform (2) is equipped with top plate (9), the top plate
(9) guide post (4) and lead screw (11) are connected between reference platform (2), the lead screw (11) is driven by servo motor (14)
It is dynamic, load platform (6) are equipped between the reference platform (2) and top plate (9), the load platform (6) is equipped with lead screw nut
(10), the lead screw nut (10) is set on lead screw (11), and it is logical that the guide post (4) passes through the guiding on load platform (6)
Hole is connect with top plate (9), and two sides are equipped with buffer unit (7) load platform (6) up and down, the reference platform (2) it is upper
Surface is equipped with the first photoelectric sensor device (3), and the bottom side of the top plate (9) is additionally provided with the second photoelectric sensor device (8), and described the
One photoelectric sensor device (3) and the second photoelectric sensor device (8) are oppositely arranged, and the load platform (6) is equipped with anti-dazzling screen
(5)。
2. a kind of accurate linear reciprocating mechanism of cantilevered high load platform according to claim 1, feature exist
In: synchronous transmission device is connected between the lead screw (11) and the output shaft of servo motor (14).
3. a kind of accurate linear reciprocating mechanism of cantilevered high load platform according to claim 2, feature exist
In: the servo motor (14) and synchronous transmission device are arranged at the space that reference platform (2) and operating platform (1) are surrounded
In, and the bottom end of the lead screw (11) passes through reference platform (2).
4. a kind of accurate linear reciprocating mechanism of cantilevered high load platform according to claim 3, feature exist
In: the synchronous transmission device includes the synchronous belt (15) of two driving wheels of two driving wheels and connection, two driving wheels
It is connected to the output shaft of servo motor (14) and the bottom end of lead screw (11).
5. a kind of accurate linear reciprocating mechanism of cantilevered high load platform according to claim 4, feature exist
In: two driving wheels be respectively a major diameter driving wheel (12) and a path driving wheel (16), wherein major diameter driving wheel
(12) it is connected to the bottom end of lead screw (11), path driving wheel (16) is connected on the output shaft of servo motor (14).
6. a kind of accurate linear reciprocating mechanism of cantilevered high load platform according to claim 3, feature exist
In: the synchronous transmission device further includes tensioning wheel (13).
7. a kind of accurate linear reciprocating mechanism of cantilevered high load platform according to claim 2, feature exist
In: the guide post (4) is two, and is relatively arranged on the left and right sides of lead screw (11), two guide posts (4) and lead screw
(11) the distance between three is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920306919.1U CN209668031U (en) | 2019-03-12 | 2019-03-12 | A kind of accurate linear reciprocating mechanism of cantilevered high load platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920306919.1U CN209668031U (en) | 2019-03-12 | 2019-03-12 | A kind of accurate linear reciprocating mechanism of cantilevered high load platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209668031U true CN209668031U (en) | 2019-11-22 |
Family
ID=68571169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920306919.1U Active CN209668031U (en) | 2019-03-12 | 2019-03-12 | A kind of accurate linear reciprocating mechanism of cantilevered high load platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209668031U (en) |
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2019
- 2019-03-12 CN CN201920306919.1U patent/CN209668031U/en active Active
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| GR01 | Patent grant | ||
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| CP02 | Change in the address of a patent holder |
Address after: 2800 Wanyuan Road, Minhang District, Shanghai 201103 Patentee after: Shanghai Jianyuan Testing Technology Co.,Ltd. Address before: 201613 Room 308, 3 / F, building 12, 68 Zhongchuang Road, Songjiang District, Shanghai Patentee before: Shanghai Jianyuan Testing Technology Co.,Ltd. |