CN113867021A - High-load rotating equipment and size calculation method thereof - Google Patents
High-load rotating equipment and size calculation method thereof Download PDFInfo
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Abstract
The invention relates to the technical field of mechanical structures, in particular to high-load rotating equipment which comprises a supporting plate, a carrying platform, a rotating supporting mechanism and a positioning rotating mechanism. Wherein, the microscope carrier sets up with the backup pad interval, is provided with the locating hole on the microscope carrier. The rotary supporting mechanism is arranged on the supporting plate and can support the carrying platform and enable the carrying platform to be arranged in a rotary mode relative to the supporting plate. The positioning and rotating mechanism is arranged on the supporting plate and comprises a connecting rod, a first driving assembly and a second driving assembly, the first driving assembly can drive the connecting rod to move along a first direction relative to the supporting plate, the second driving assembly can drive the connecting rod to move along a second direction relative to the supporting plate, so that the connecting rod moves along an arc line around the axis of the rotation center of the rotating supporting mechanism, the first direction and the second direction are both parallel to the plane where the carrying platform is located, and the connecting rod is partially inserted into the positioning hole. The invention also provides a size calculation method of the high-load rotating equipment.
Description
Technical Field
The invention relates to the technical field of mechanical structures, in particular to high-load rotating equipment and a size calculation method thereof.
Background
The polaroid attaching machine is equipment for attaching polaroids on the front side and the back side of a formed liquid crystal glass substrate. The polaroid attaching machine is provided with a high-load contraposition rotating shaft, and the high-load contraposition rotating shaft is small in rotating angle and high in precision requirement. The prior polarizer attaching machine mostly adopts a direct drive motor to drive the rotation of a high-load contraposition rotating shaft. Since the high load is high in the rotational load of the alignment rotary shaft, the direct drive motor needs to have high torque and inertia, so that the cost of the direct drive motor is also increased accordingly. In addition, the direct drive motor has a large axial height and occupies a large space, which causes problems of tension in arrangement of other structures in the polarizer attaching machine, unreasonable connection and the like.
Therefore, a high-load rotating apparatus and a method for calculating the size thereof are needed to solve the above problems.
Disclosure of Invention
The invention aims to provide high-load rotating equipment which can be suitable for high-load scenes, and can reduce cost, space occupation and the overall size of a product.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high-load rotating apparatus, comprising:
a support plate;
the carrying platform is arranged at intervals with the supporting plate, and a positioning hole is formed in the carrying platform;
the rotary supporting mechanism is arranged on the supporting plate and can support the carrying platform and enable the carrying platform to be arranged in a rotary mode relative to the supporting plate;
the positioning and rotating mechanism is arranged on the supporting plate and comprises a connecting rod, a first driving component and a second driving component, the first driving component can drive the connecting rod to move relative to the supporting plate along the first direction, the second driving component can drive the connecting rod to move relative to the supporting plate along the second direction, so that the connecting rod moves along an arc line around the axis of the rotation center of the rotating supporting mechanism, the first direction and the second direction are both parallel to the plane where the carrying platform is located, and the connecting rod part is inserted into the positioning hole.
Optionally, the first driving assembly includes a first slider and a first guide rail disposed along the first direction, the first slider is movably disposed on the first guide rail, and the second driving assembly is connected to the first slider.
Optionally, the first driving assembly further includes a first driving member, and the first driving member is configured to drive the first slider to slide on the first guide rail.
Optionally, the second driving assembly includes a second slider and a second guide rail disposed along the second direction, the second guide rail includes a rotor and a stator which are slidably engaged with each other, the second slider is connected to the rotor, and the connecting rod is disposed on the second slider.
Optionally, the second guide rails are oppositely arranged.
Optionally, the second driving assembly further comprises a second driver for driving the mover to slide on the stator.
Optionally, the second guide rail is a cross roller guide rail.
Optionally, the rotary support mechanism includes a support bearing, an outer ring of the support bearing supports the stage, and an inner ring of the support bearing is connected to the support plate, or an inner ring of the support bearing supports the stage, and an outer ring of the support bearing is connected to the support plate.
Optionally, the support bearing is a cross roller bearing.
Another object of the present invention is to provide a method for calculating the dimension of a high-load rotating device, which can meet the accuracy requirement for the rotation angle of the stage, and ensure that the rotation angle of the stage can reach the maximum value of the required rotation angle.
In order to achieve the purpose, the invention adopts the following technical scheme:
a size calculation method of high-load rotating equipment is applied to the high-load rotating equipment and comprises the following steps:
the displacement precision of the first driving component driving the connecting rod to move along the first direction is L1Maximum value of displacement is L2The second driving component drives the connecting rod to move along the second direction with the displacement precision of W1Maximum value of displacement is W2The first direction is perpendicular to the second direction, and the angle accuracy of the deviation of the connecting rod relative to the rotation center of the rotation support mechanism is theta1The absolute value of the maximum value is theta2Then, the value of the distance R between the connecting rod and the rotation center satisfies the following condition:
the invention has the beneficial effects that:
the invention provides high-load rotating equipment which comprises a supporting plate, a carrying platform, a rotating supporting mechanism and a positioning rotating mechanism. Wherein, the microscope carrier sets up with the backup pad interval, is provided with the locating hole on the microscope carrier. The rotary supporting mechanism is arranged on the supporting plate and can support the carrying platform and enable the carrying platform to be arranged in a rotary mode relative to the supporting plate. The positioning and rotating mechanism is arranged on the supporting plate and comprises a connecting rod, a first driving assembly and a second driving assembly, the first driving assembly can drive the connecting rod to move along a first direction relative to the supporting plate, the second driving assembly can drive the connecting rod to move along a second direction relative to the supporting plate, so that the connecting rod moves along an arc line around the axis of the rotation center of the rotating supporting mechanism, the first direction and the second direction are both parallel to the plane where the carrying platform is located, and the connecting rod is partially inserted into the positioning hole.
It can be known that, rotation support mechanism is used for supporting the high load on microscope carrier and the microscope carrier, and the connecting rod is used for driving the microscope carrier to rotate. The rotating center of the rotating support mechanism corresponds to the position on the carrier, and the distance between the rotating center of the rotating support mechanism and the positioning hole on the carrier is fixed. Drive the connecting rod through first drive assembly and remove along first direction, and second drive assembly drives the connecting rod and removes along the second direction to make the connecting rod remove along the pitch arc around the axis of rotation center, turn into the stack of two rectilinear direction movements with rotary motion, in order to realize the rotation of microscope carrier. Because the rotary supporting mechanism and the positioning and rotating mechanism respectively play roles of supporting weight and driving rotation, the direct-drive motor can be replaced, the rotary support mechanism and the positioning and rotating mechanism are not only suitable for high-load scenes, but also can reduce cost and space occupation, reduce the overall size of products and improve the economic benefit of the products.
The invention also provides a size calculation method of the high-load rotating equipment, namely, the displacement precision L of the connecting rod driven by the first driving component to move along the first direction1Maximum value of displacement L2The second driving component drives the connecting rod to move along the second direction with the displacement precision W1Maximum value of displacement W2Angular accuracy theta of the connecting rod offset with respect to the rotation center of the rotation support mechanism1Absolute value of maximum value θ2And obtaining the value condition of the distance R between the connecting rod and the rotation center. The high-load rotating equipment designed according to the value taking condition can meet the precision requirement on the rotating angle of the carrying platform and simultaneously ensure that the rotating angle of the carrying platform can reach the maximum value of the required rotating angle.
Drawings
FIG. 1 is a schematic diagram of the internal structure of a high-load rotating apparatus from a first perspective according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the internal structure of a high-load rotating apparatus from a second perspective according to an embodiment of the present invention;
fig. 3 is a formula for calculating the size of the high-load rotating device according to the embodiment of the present invention.
In the figure:
1. a support plate; 2. a support bearing; 3. a connecting rod; 4. a first guide rail; 5. a first slider; 6. a second guide rail; 7. and a second slider.
Detailed Description
The technical scheme of the invention is further explained by combining the attached drawings and the embodiment. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The prior polarizer attaching machine mostly adopts a direct drive motor to drive the rotation of a high-load contraposition rotating shaft. Since the high load is high in the rotational load of the alignment rotary shaft, the direct drive motor needs to have high torque and inertia, so that the cost of the direct drive motor is also increased accordingly. In addition, the direct drive motor has a large axial height and occupies a large space, which causes problems of tension in arrangement of other structures in the polarizer attaching machine, unreasonable connection and the like. Accordingly, the present embodiment provides a high-load rotation apparatus, which can be used in a polarizer attachment machine to solve the above problems.
As shown in fig. 1 to 2, the high-load rotating apparatus includes: a support plate 1, a carrier (not shown), a rotation support mechanism and a positioning rotation mechanism. Wherein, the microscope carrier is arranged at intervals with the supporting plate 1, and the microscope carrier is provided with a positioning hole. The rotary supporting mechanism is arranged on the supporting plate 1, and can support the carrying platform and enable the carrying platform to be arranged in a rotary mode relative to the supporting plate 1. Positioning and rotating mechanism sets up on backup pad 1, positioning and rotating mechanism includes connecting rod 3, first drive assembly and second drive assembly, first drive assembly can drive connecting rod 3 and remove along the first direction relative to backup pad 1, second drive assembly can drive connecting rod 3 and remove along the second direction relative to backup pad 1, so that connecting rod 3 moves along the pitch arc around the axis of the rotation center of rotation support mechanism, first direction and second direction all are on a parallel with the plane that the microscope carrier was located, connecting rod 3 part is inserted and is established in the locating hole.
It can be known that, rotation support mechanism is used for supporting the high load on microscope carrier and the microscope carrier, and connecting rod 3 is used for driving the microscope carrier to rotate. The rotating center of the rotating support mechanism corresponds to the position on the carrier, and the distance between the rotating center of the rotating support mechanism and the positioning hole on the carrier is fixed. Drive connecting rod 3 through first drive assembly and remove along first direction, and second drive assembly drives connecting rod 3 and removes along the second direction to make connecting rod 3 remove along the pitch arc around the axis of rotation center, through the stack of two rectilinear direction motions, in order to realize the rotation of microscope carrier. Because the rotary supporting mechanism and the positioning and rotating mechanism respectively play roles of supporting weight and driving rotation, the direct-drive motor can be replaced, the rotary support mechanism and the positioning and rotating mechanism are not only suitable for high-load scenes, but also can reduce cost and space occupation, reduce the overall size of products and improve the economic benefit of the products.
Optionally, in this embodiment, the first direction is a tangential direction of a circle with a rotation center of the rotation support mechanism as a center, and the second direction is perpendicular to the first direction.
Alternatively, the first driving assembly includes a first slider 5 and a first guide rail 4 disposed along the first direction, the first slider 5 is movably disposed on the first guide rail 4, and the second driving assembly is connected to the first slider 5. Optionally, the first driving assembly further comprises a first driving member to drive the first sliding block 5 to slide on the first guiding rail 4. In order to ensure that the distance of movement of the connecting rod 3 in the first direction meets the accuracy requirements, optionally the first drive is a servo motor.
In order to ensure that the distance of movement of the connecting rod 3 in the second direction meets the accuracy requirements, the second drive assembly optionally comprises a second slider 7 and a second guide 6 arranged in the second direction. The second guide rail 6 comprises a rotor and a stator which are in sliding fit, the second sliding block 7 is connected to the rotor, and the connecting rod 3 is arranged on the second sliding block 7. Since the connecting rod 3 moves in an arc about the axis of the rotation center, the moving distance in the second direction is small, and in order to ensure the moving precision, the second guide rail 6 is optionally a cross roller guide rail. And in order to ensure the stability of the movement, optionally, the second guide rails 6 are oppositely arranged. Optionally, the movers of the two second guide rails 6 are respectively and fixedly connected with the bottom of the second slider 7, so that when the two movers move cooperatively, the second slider 7 moves stably.
In order to protect the second guide rails 6, optionally, a bearing plate is fixedly connected to the first slider 5, a groove is formed in the bearing plate, and the stators of the two second guide rails 6 are oppositely arranged on the side walls of the two grooves to ensure that the movers of the second guide rails 6 move in the grooves. It will be appreciated that the length of the groove needs to be such that the distance of movement of the connecting rod 3 in the second direction is met.
Optionally, the second drive assembly further comprises a second driver to drive the sliding of the mover relative to the stator. In order to ensure that the distance of movement of the connecting rod 3 in the second direction meets the accuracy requirements, the second drive is optionally an electric or pneumatic cylinder.
In order to further improve the stability of the connecting rod 3 in driving the rotation of the platform deck, optionally, the high-load rotation device is provided with a plurality of positioning rotation mechanisms, namely a plurality of sets of connecting rods 3 and a driving unit, and the platform deck is provided with a plurality of positioning holes, the plurality of connecting rods 3 and the plurality of positioning holes are arranged in a one-to-one correspondence manner, so that the simultaneous driving and rotation of multiple points on the platform deck can be realized, and the stability of the rotation of the platform deck is ensured.
Alternatively, the rotary support mechanism includes a support bearing, an outer ring of which supports the stage, an inner ring of which is connected to the support plate 1, or an inner ring of which supports the stage, and an outer ring of which is connected to the support plate 1. To ensure the load-bearing capacity of the bearing, the support bearing is optionally a cross roller bearing.
Optionally, two supporting plates are vertically and oppositely arranged on the supporting plate 1, a bearing plate is erected on the two supporting plates, a through hole is formed in the bearing plate, and the supporting bearing is arranged in the through hole. Namely, the outer wall of the outer ring of the support bearing is fixedly connected with the inner wall of the through hole, and the inner ring of the support bearing is fixedly connected with the carrier, so that the carrier can stably rotate relative to the support plate 1.
As shown in fig. 2 to 3, the present embodiment also provides a size calculation method of the above-described high-load rotating apparatus. The first driving component drives the connecting rod 3 to move along the first direction, the displacement of the second driving component drives the connecting rod 3 to move along the second direction is L, and the angle precision theta of the connecting rod 3 which deviates relative to the rotation center of the rotation supporting mechanism is W.
The displacement precision of the first driving component driving the connecting rod 3 to move along the first direction is set to be L1Maximum value of displacement is L2. The displacement precision of the second driving component driving the connecting rod 3 to move along the second direction is W1Maximum value of displacement is W2. The angle accuracy of the deviation of the connecting rod 3 with respect to the rotation center of the rotation support mechanism is theta1The absolute value of the maximum value is theta2。
It can be known that the absolute value of the difference between the actual value and the set value of the angle by which the connecting rod 3 is offset with respect to the rotation center of the rotation support mechanism, that is, the absolute value of the deviation angle, needs to be equal to or less than the precision value θ1So as to meet the requirement of rotation precision. Since the first direction is perpendicular to the second direction, the displacement accuracy L when the connecting rod 3 moves in the first direction1When fixed, the smaller the distance R between the connecting rod 3 and the rotation center, the larger the deviation angle. Since the deviation angle has a maximum permissible value, i.e. the distance R of the connecting rod 3 from the centre of rotation has a minimum permissible value, i.e.
Similarly, the displacement accuracy W when the connecting rod 3 moves in the second direction1When fixed, the smaller the distance R between the connecting rod 3 and the rotation center, the larger the deviation angle. Since the deviation angle has the maximum value permissible, i.e. connectedThe distance R of the extension rod 3 from the centre of rotation has a minimum permissible value, i.e.
Therefore, R needs to be equal to or greater than
And
the larger of these.
In addition, the maximum value of the actual value of the angle by which the connecting rod 3 is offset from the rotation center of the rotation support mechanism needs to be equal to or greater than the absolute value θ of the preset maximum value2The requirement of the rotation of the carrier can be met. Maximum value of displacement L when connecting rod 3 moves in first direction2When fixed, the smaller the distance R between the tie rod 3 and the center of rotation, the larger the angle by which the tie rod 3 is offset from the center of rotation. Since the maximum value of the offset angle needs to be equal to or greater than the preset maximum value2I.e. the distance R of the connecting rod 3 from the centre of rotation has the maximum value permissible, i.e.
Similarly, the maximum value of displacement W when the connecting rod 3 moves in the second direction2When fixed, the smaller the distance R between the tie rod 3 and the center of rotation, the larger the angle by which the tie rod 3 is offset from the center of rotation. Since the maximum value of the offset angle needs to be equal to or greater than the preset maximum value2I.e. the distance R of the connecting rod 3 from the centre of rotation has the maximum value permissible, i.e.
Therefore, R needs to be equal to or less than
And
the smaller of these.
In summary, the distance R between the connecting rod 3 and the rotation center needs to satisfy the following condition:
the high-load rotating equipment designed according to the value taking condition can meet the precision requirement on the rotating angle of the carrying platform and simultaneously ensure that the rotating angle of the carrying platform can reach the maximum value of the required rotating angle.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A high-load rotating apparatus, comprising:
a support plate (1);
the carrying platform is arranged at intervals with the supporting plate (1), and a positioning hole is formed in the carrying platform;
the rotary supporting mechanism is arranged on the supporting plate (1), and can support the carrying platform and enable the carrying platform to be arranged in a rotary mode relative to the supporting plate (1);
the positioning and rotating mechanism is arranged on the supporting plate (1) and comprises a connecting rod (3), a first driving assembly and a second driving assembly, the first driving assembly can drive the connecting rod (3) to move relative to the supporting plate (1) along the first direction, the second driving assembly can drive the connecting rod (3) to move relative to the supporting plate (1) along the second direction, so that the connecting rod (3) moves along an arc line around the axis of the rotating center of the rotating and supporting mechanism, the first direction and the second direction are both parallel to the plane where the carrying platform is located, and the connecting rod (3) is partially inserted into the positioning hole.
2. A high load rotating device according to claim 1, wherein said first driving assembly comprises a first slider (5) and a first guiding rail (4) arranged in said first direction, said first slider (5) being movably arranged on said first guiding rail (4), said second driving assembly being connected to said first slider (5).
3. A high load rotating apparatus according to claim 2, wherein the first driving assembly further comprises a first driving member for driving the first slider (5) to slide on the first guide rail (4).
4. A high load rotating device according to claim 1, wherein the second drive assembly comprises a second slider (7) and a second guide rail (6) arranged in the second direction, the second guide rail (6) comprising a slidably fitted mover and stator, the second slider (7) being connected to the mover, the connecting rod (3) being arranged on the second slider (7).
5. A high load rotating apparatus according to claim 4, wherein the second guide rail (6) is oppositely disposed two.
6. The high load rotation apparatus of claim 4, wherein the second drive assembly further comprises a second drive for driving the mover to slide on the stator.
7. A high load rotating apparatus according to claim 4, wherein said second guide rail (6) is a cross roller guide rail.
8. A high-load rotating apparatus according to claim 1, wherein the rotation support mechanism comprises a support bearing, an outer ring of which supports the stage, an inner ring of which is connected to the support plate (1), or an inner ring of which supports the stage, an outer ring of which is connected to the support plate (1).
9. The high-load rotating apparatus according to claim 8, wherein the support bearing is a cross roller bearing.
10. A size calculation method of a high-load rotating apparatus, applied to the high-load rotating apparatus according to any one of claims 1 to 9, comprising the steps of:
the displacement precision of the first driving component driving the connecting rod (3) to move along the first direction is L1Maximum value of displacement is L2The second driving component drives the connecting rod (3) to move along the second direction with the displacement precision of W1Maximum value of displacement is W2The first direction is perpendicular to the second direction, and the connecting rod (3) is offset relative to the rotation center of the rotation support mechanism with the angle precision theta1The absolute value of the maximum value is theta2Then, the value of the distance R between the connecting rod (3) and the rotating center meets the following condition:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111112464.8A CN113867021A (en) | 2021-09-23 | 2021-09-23 | High-load rotating equipment and size calculation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111112464.8A CN113867021A (en) | 2021-09-23 | 2021-09-23 | High-load rotating equipment and size calculation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090056158A1 (en) * | 2007-09-05 | 2009-03-05 | Makoto Tada | Positive Load Alignment Mechanism |
| KR20200106835A (en) * | 2019-03-04 | 2020-09-15 | 상하이 마이크로 일렉트로닉스 이큅먼트(그룹) 컴퍼니 리미티드 | Mask stage and photolithography system |
| CN211804431U (en) * | 2019-12-25 | 2020-10-30 | 江苏迅镭激光科技有限公司 | Ultraviolet silicon wafer precision laser cutting device |
| CN213499061U (en) * | 2020-07-16 | 2021-06-22 | 苏州精濑光电有限公司 | Adjusting platform |
| CN217213375U (en) * | 2021-09-23 | 2022-08-16 | 深圳市八零联合装备有限公司 | High-load rotating equipment |
-
2021
- 2021-09-23 CN CN202111112464.8A patent/CN113867021A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090056158A1 (en) * | 2007-09-05 | 2009-03-05 | Makoto Tada | Positive Load Alignment Mechanism |
| KR20200106835A (en) * | 2019-03-04 | 2020-09-15 | 상하이 마이크로 일렉트로닉스 이큅먼트(그룹) 컴퍼니 리미티드 | Mask stage and photolithography system |
| CN211804431U (en) * | 2019-12-25 | 2020-10-30 | 江苏迅镭激光科技有限公司 | Ultraviolet silicon wafer precision laser cutting device |
| CN213499061U (en) * | 2020-07-16 | 2021-06-22 | 苏州精濑光电有限公司 | Adjusting platform |
| CN217213375U (en) * | 2021-09-23 | 2022-08-16 | 深圳市八零联合装备有限公司 | High-load rotating equipment |
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