TWI846112B - Non mid-mounted driving type rotation device - Google Patents

Abstract

A non mid-mounted driving type rotation device includes a base, a driving unit, four transmission components, a transmission member, and a chuck. The driving unit is disposed on the base. The transmission component includes a fixing portion and a shifting portion. The fixing portion is fixed on the base, the shifting portion is rotatably disposed on the fixing portion. A distance between the transmission components in a first direction or a second direction perpendicular to the first direction is the same. The transmission member is connected to the driving unit and the shifting portion of the transmission components and winded around the transmission components. The chuck is disposed the shifting portion of the transmission components.

Description

Non-central drive rotary device

This invention relates to rotating devices, and more particularly to a rotating device that is not driven about a center of rotation.

With the popularization of the concept of automation, all walks of life have introduced the concept of automation to improve efficiency. For the manufacturing industry, the automated process can greatly improve production efficiency and significantly increase production capacity and output value.

In the automation process of various fields, the transfer device is one of the important devices related to space configuration and efficiency. The transfer device mainly includes a linear transfer device that carries objects for linear displacement or a rotary device that carries objects for rotational displacement. In terms of the rotary device, in order to carry objects and perform rotational displacement, a rotary drive source is usually directly connected to one side of the carrier used to carry the objects, and the drive source is set at the rotation center of the carrier to directly drive the carrier to rotate.

However, in some automated processes, in addition to the need to rotate the object, other peripheral devices may also need to be configured on both sides of the object to perform other tasks in the automated process on the object (for example, a specific semiconductor component must be tested from both sides at the same time). In this case, a general rotation device will not be able to meet the requirements and needs to be improved.

The present invention provides a non-centrally mounted driving and rotating device, comprising a base, a driving unit, four driving components, a driving member and a carrier. The driving unit is disposed on the base. Each driving component comprises a fixed component and a displacement component, respectively. The fixed component is fixed on the base, and the displacement component is rotatable and can be displaced along a first direction and a second direction perpendicular to the first direction and disposed on the fixed component; each driving component has the same distance in the first direction or the second direction. The driving member is connected to the driving unit, and the driving member is connected to the displacement component of each driving component and is wound around each driving component. The carrier is disposed on the displacement component of each driving component.

Thereby, when the driving unit drives the driven member to displace, the driven member drives each driven component to displace synchronously, and each driven component simultaneously generates linear displacement in two directions accompanied by rotational momentum, and the position configuration of each driven component causes the carrier to rotate. Here, the driving unit does not need to be set at the center position of the base or the carrier, and other peripheral devices can be configured on both sides of the carrier or the base, thereby improving applicability.

In some embodiments, the displacement component includes a first displacement component and a second displacement component. The first displacement component is displaceably disposed on the fixed component, and the second displacement component is displaceably disposed on the first displacement component. The displacement directions of the first displacement component and the second displacement component are perpendicular to each other.

In some embodiments, the linear displacement directions of the first displacement components of the two adjacent driving assemblies are perpendicular to each other, and the linear displacement directions of the second displacement components of the two adjacent driving assemblies are perpendicular to each other.

In some embodiments, the aforementioned carrier is rotatably disposed on the second displacement component of each driving assembly.

In some embodiments, the driving member is a steel belt or a leather belt.

In some embodiments, the aforementioned driving unit includes a motor, a screw and a nut, the motor is fixed on the base, the screw is connected to the motor, the nut is displaceably arranged on the base and is sleeved on the outside of the screw, and the driver is connected to the nut.

In some embodiments, the non-central drive rotation device further includes a linear guide rail assembly disposed on the base and connected between the nut and the driver.

In some embodiments, the linear guide rail assembly includes a slide rail and a slide block, the slide rail is fixed on the base, the slide block can be slidably inserted into the slide rail, and the slide block is connected between the nut and the driving member.

In some embodiments, the aforementioned driving components respectively include pulleys, and the driving member abuts against the pulleys.

In some embodiments, the base has a through hole, four driving components are located around the through hole, and the connection lines between two of the four driving components that are farthest apart intersect at the through hole.

In some embodiments, the aforementioned carrier has a through hole, and the through hole is opposite to the through hole.

Please refer to Figures 1 to 5. Figure 1 is a three-dimensional external view of an embodiment of the non-central drive rotating device of the present invention; Figure 2 is a partial structural decomposition diagram of an embodiment of the non-central drive rotating device of the present invention; Figure 3 is an enlarged partial structural diagram of Figure 2; Figure 4 is a top view of an embodiment of the non-central drive rotating device of the present invention; and Figure 5 is a configuration diagram of the driving assembly of an embodiment of the non-central drive rotating device of the present invention. The non-central drive rotating device of the present invention can drive the carrier 50 having a central through hole 51 to rotate, and the drive unit 20 does not need to be set at the rotation center O of the carrier 50, nor does it need to be set at the rotation center O of the carrier 50, so that the peripheral devices can be configured through the through hole 51 of the carrier 50 to meet different usage requirements.

Referring to FIGS. 1 to 3 , the non-centrally mounted driving rotating device includes a base 10, a driving unit 20, four driving components 30, a driving member 40, and a carrier 50. The driving unit 20 is disposed on the base 10. Each driving component 30 includes a fixed component 31 and a displacement component 32. The fixed component 31 is fixed on the base 10. The displacement component 32 is rotatable and can be displaced along a first direction D1 and a second direction D2 perpendicular to the first direction D1. The distance between each driving component 30 in the first direction D1 or the second direction D2 is the same. The driving member 40 is connected to the driving unit 20, and the driving member 40 is connected to the displacement component 32 of each driving component 30 and is wound around the aforementioned four driving components 30. The carrier 50 is disposed on the displacement component 32 of the aforementioned four driving components 30.

Thereby, when the driving unit 20 drives the driving member 40 to move, the driving member 40 drives each driving component 30 to move synchronously, and each driving component 30 simultaneously generates linear displacement in two directions accompanied by rotational momentum, and cooperates with the position configuration of each driving component 30 to cause the carrier 50 to rotate. Here, the driving unit 20 does not need to be set at the center position of the base 10 or the carrier 50, and other peripheral device configurations can be provided on both sides of the carrier 50 or the base 10 to improve applicability.

Referring to FIG. 1 and FIG. 2 , in some embodiments, the base 10 is a plate having a through hole 11, the through hole 11 passes through the base 10, and the driving unit 20 and the four driving components 30 are disposed on one side of the base 10. In these embodiments, the through hole 11 is in the shape of a long rectangle, and the through hole 11 of the base 10 is opposite to the through hole 51 of the carrier 50, but the present invention is not limited thereto.

Referring to FIG. 1 and FIG. 2 , the drive unit 20 is a structure that can generate a linear displacement driving force, and is not limited to a single structure or a combination of multiple structures. In some embodiments, the drive unit 20 includes a motor 21, a screw 22, and a nut 23. In these embodiments, the motor 21 is fixed on the base 10, the screw 22 is connected to the motor 21 to be driven by the motor 21 to rotate, and the nut 23 is displaceably arranged on the base 10 and threadedly sleeved on the outside of the screw 22. When the motor 21 is running, the motor 21 drives the screw 22 to rotate, and the nut 23 threaded on the screw 22 can generate a linear displacement driving force along the extension direction of the screw 22 and drive the driving member 40 to linearly displace. It is worth noting that the shape of the drive unit 20 is not limited to this. In some other embodiments, a gas/hydraulic cylinder that can directly generate a linear displacement drive force, or a combination structure of a motor and a gear or a rack can also be different implementation forms of the drive unit 20.

Referring to FIG. 2 , FIG. 4 and FIG. 5 , FIG. 5 omits the base 10 to more clearly show the configuration of the driving assembly 30 . In some embodiments, four driving assemblies 30 are disposed around the through hole 11 of the base 10 and arranged in a square. Specifically, the appearance of each driving assembly 30 is the same. In these embodiments, each driving assembly 30 is a square cylinder, and the shape of one side of each driving assembly 30 that is attached to and connected to the base 10 is a square, but the present invention is not limited thereto. Here, each driving assembly 30 has a center point C, and the lines connecting each center point C along the first direction D1 and the second direction D2 form a square (such as the lines connecting the center points C in FIG. 5 ). That is to say, from the perspective of FIG. 4 and FIG. 5 , the distances between each driving assembly 30 in the first direction D1 or the second direction D2 are the same.

In some embodiments where four driving components 30 are arranged in a square and disposed around the through hole 11, the line connecting the center points C of two driving components 30 located at diagonal positions (the two farthest apart) intersects at the rotation center O, and the rotation center O is located within the through hole 11 of the base 10. In these embodiments, the rotation center O is the rotation center O of the carrier 50.

Referring to FIGS. 1 to 3 , in order to realize the purpose that the displacement component 32 of each driving assembly 30 can be linearly displaced along the first direction D1 and the second direction D2, in some embodiments, the displacement component 32 of each driving assembly 30 includes a first displacement component 321 and a second displacement component 322, the first displacement component 321 is displaceably disposed on the fixing component 31, the second displacement component 322 is displaceably disposed on the first displacement component 321, and the linear displacement directions of the first displacement component 321 and the second displacement component 322 are perpendicular to each other. In this way, the displacement component 32 of the driving assembly 30 can provide linear displacement capabilities in two directions.

It is worth noting that in some embodiments where the driving assemblies 30 are arranged in a square, the structural configurations of the driving assemblies 30 are the same, but the orientations of the driving assemblies 30 on the base 10 are different. Specifically, the linear displacement directions of the first displacement components 321 of every two adjacent driving assemblies 30 among the four driving assemblies 30 are perpendicular to each other, and the linear displacement directions of the second displacement components 322 of every two adjacent driving assemblies 30 are perpendicular to each other.

From the perspective of FIG. 2 and FIG. 4 , the driving unit 20 is disposed on the left side of the base 10 , and the opposite side is the right side, and the motor 21 of the driving unit 20 is close to the upper side of the base 10 , and the opposite side is the lower side.

Referring to FIG. 2 and FIG. 4 , the first displacement component 321 of the driving assembly 30 located at the lower left side is displaceably disposed on the fixed component 31 along the first direction D1, and the second displacement component 322 of the driving assembly 30 located at the lower left side is displaceably disposed on the first displacement component 321 along the second direction D2; the first displacement component 321 of the driving assembly 30 located at the upper left side is displaceably disposed on the fixed component 31 along the second direction D2, and the second displacement component 322 of the driving assembly 30 located at the upper left side is displaceably disposed on the first displacement component 321 along the first direction D1. The first displacement component 321 of the driving assembly 30 located on the lower right side is displaceably disposed on the fixed component 31 along the second direction D2, and the second displacement component 322 of the driving assembly 30 on the lower right side is displaceably disposed on the first displacement component 321 along the first direction D1; the first displacement component 321 of the driving assembly 30 located on the upper right side is displaceably disposed on the fixed component 31 along the first direction D1, and the second displacement component 322 of the driving assembly 30 on the upper right side is displaceably disposed on the first displacement component 321 along the second direction D2.

In this way, please refer to Figures 2, 4 and 5. When the driving unit 20 operates and drives the driving member 40 to rotate in the clockwise direction, each driving component 30 can generate linear displacements in two different directions accompanied by rotational momentum, thereby following the rotation of the driving member 40 to drive the carrier 50 to smoothly generate a rotational displacement around the rotation center O. Specifically, the driving assembly 30 on the lower left side is driven to move toward the left and upper sides and rotate clockwise, the first displacement component 321 of the driving assembly 30 on the upper left side is driven to move toward the upper and right sides and rotate clockwise; the first displacement component 321 of the driving assembly 30 on the upper right side is driven to move toward the right and lower sides and rotate clockwise; the first displacement component 321 of the driving assembly 30 on the lower right side is driven to move toward the lower and left sides and rotate clockwise. Under this action, the displacement of the four driving assemblies 30 is synchronously generated and drives the carrier 50 to generate a rotation displacement around the rotation center O.

Referring to FIG. 2 and FIG. 3 , in some embodiments, in order to ensure that the carrier 50 stably displaces along the desired orientation, each driving assembly 30 further includes a plurality of linear guide devices 33 and a rotating structure 34. The linear guide devices 33 are respectively arranged between the fixed component 31 and the first displacement component 321 and between the first displacement component 321 and the second displacement component 322 to guide the linear displacement of the first displacement component 321 and the second displacement component 322, and the rotating structure 34 is arranged between the second displacement component 322 and the carrier 50 so that the carrier 50 can rotate relative to each second displacement component 322.

Referring to FIG. 2 and FIG. 3 , in some embodiments, the linear guide device 33 is a linear slide rail. In these embodiments, the linear guide device 33 includes a fixed rail 331, a rolling member 332 and a sliding rail 333. The rolling member 332 is rollably disposed between the fixed rail 331 and the sliding rail 333. The sliding rail 333 can be linearly displaced relative to the fixed rail 331 by leaning against the rolling member 332. Here, the fixed rail 331 is fixedly disposed on a side of the fixed component 31 facing the first displacement component 321 and a side of the first displacement component 321 facing the second displacement component 322. The side of the first displacement component 321 facing the fixed rail 331 and the side of the second displacement component 322 facing the first displacement component 321 are respectively connected to the sliding rail 333, so that the first displacement component 321 and the second displacement component 322 can be respectively guided by the linear guide device 33 to stably linearly displace.

In some embodiments, the rotating structure 34 is a bearing, but the present invention is not limited thereto. In these embodiments, the rotating structure 34 includes an inner ring 341 and an outer ring 342, wherein the inner ring 341 is fixedly disposed on a side of the second displacement component 322 facing the carrier 50, and the outer ring 342 is rotatably sleeved outside the inner ring 341 and fixed to a side of the carrier 50 facing the second displacement component 322.

Referring to FIG. 2 and FIG. 3 , it is worth noting that in these embodiments, the linear guide device 33 disposed between the fixed component 31 and the first displacement component 321 is responsible for guiding the linear displacement of the first displacement component 321, and therefore, the linear guide direction of the linear guide device 33 disposed between the fixed component 31 and the first displacement component 321 is the same as the linear displacement direction of the first displacement component 321; and the linear guide device 33 disposed between the first displacement component 321 and the second displacement component 322 is responsible for guiding the linear displacement of the second displacement component 322, and therefore, the linear guide direction of the linear guide device 33 disposed between the first displacement component 321 and the second displacement component 322 is the same as the linear displacement direction of the second displacement component 322. Taking an embodiment of the driving assembly 30 shown in FIG. 3 as an example, the first displacement component 321 of the driving assembly 30 in FIG. 3 is displaceably disposed on the fixed component 31 along the first direction D1, so that the fixed rail 331 and the sliding rail 333 of the linear guide device 33 between the fixed component 31 and the first displacement component 321 also extend along the first direction D1; and the second displacement component 322 of the driving assembly 30 in FIG. 3 is displaceably disposed on the first displacement component 321 along the second direction D2, so that the fixed rail 331 and the sliding rail 333 of the linear guide device 33 between the first displacement component 321 and the second displacement component 322 also extend along the second direction D2.

Referring to FIG. 3 , in some embodiments, in order to improve the displacement stability of the driving assembly 30, two sets of linear guide devices 33 are respectively provided between the fixed component 31 and the first displacement component 321 and between the first displacement component 321 and the second displacement component 322 of each driving assembly 30, and the two sets of linear guide devices 33 between the fixed component 31 and the first displacement component 321 are parallel to each other, and the two sets of linear guide devices 33 between the first displacement component 321 and the second displacement component 322 are parallel to each other. Thereby, the first displacement component 321 can be fixed to the sliding rails 333 of the two sets of linear guide devices 33 on the fixed component 31 at the same time, and the second displacement component 322 can be fixed to the sliding rails 333 of the two sets of linear guide devices 33 on the first displacement component 321 at the same time. The first displacement component 321 and the second displacement component 322 are respectively guided by the two sets of linear guide devices 33, thereby improving the displacement stability.

Referring to FIG. 3 , in some embodiments where the first displacement member 321 and the second displacement member 322 are guided by two sets of linear guide devices 33, the two sets of linear guide devices 33 between the fixed member 31 and the first displacement member 321 are spaced apart from each other, and the two sets of linear guide devices 33 between the first displacement member 321 and the second displacement member 322 are spaced apart from each other. In this way, the two sets of linear guide devices 33 between the fixed member 31 and the first displacement member 321 and the two sets of linear guide devices 33 between the first displacement member 321 and the second displacement member 322 respectively form a guide channel 35, and the first displacement member 321 is directed toward the fixed member 31. The fixed component 31 has a first protrusion 3211 on one side, and the second displacement component 322 has a second protrusion 3221 on one side facing the first displacement component 321. The first protrusion 3211 of the first displacement component 321 can be slidably accommodated in the guide channel 35 between the fixed component 31 and the first displacement component 321, and the second protrusion 3221 of the second displacement component 322 can be slidably accommodated in the guide channel 35 between the first displacement component 321 and the second displacement component 322. Thereby, the first displacement component 321 and the second displacement component 322 can be respectively limited by the guide channel 35 to reduce deviation, thereby improving displacement stability.

Referring to FIG. 2 and FIG. 3 , in some embodiments, the linear guide device 33 is a cross roller slide rail, but the present invention is not limited thereto. In these embodiments, the rollers 332 are round rollers, and adjacent rollers 332 are arranged at a 90-degree angle to each other. This can provide multi-directional loads and improve product life.

In some embodiments, the driving member 40 may be, but is not limited to, a belt or a steel belt.

Referring to FIG. 1 and FIG. 2 , in some embodiments, in order to improve the smoothness of the displacement of each driven assembly 30 driven by the driving member 40, each driven assembly 30 includes a pulley 36, and the pulley 36 is rotatably disposed on the base 10. In these embodiments, the pulley 36 is adjacent to the fixed component 31, and the driving member 40 is wound around the pulley 36 of each driven assembly 30, so that when the driving member 40 is displaced, it can abut against the pulley 36, thereby improving the smoothness of the displacement of the driving member 40.

Referring to FIG. 2 , FIG. 4 and FIG. 5 , in some embodiments, the driving member 40 includes driving blocks 41 corresponding to the number of driving components 30, and the driving member 40 drives the driving components 30 through the driving blocks 41. In these embodiments, one end of the driving block 41 is fixed to the driving member 40, and the other end of the driving block 41 is fixed to the first displacement component 321 of each driving component 30. Thus, the freedom of spatial configuration of the driving member 40 can be improved through the configuration of the driving blocks 41. It is worth mentioning that, here, the driving member 40 is formed into a square outline around the four driving components 30. In order to make the driving member 40 drive the four driving components 30 to move around the rotation center O, the driving block 41 is located on each side of the square driving member 40, so that each driving component 30 can be driven to move in different directions, and the combined effect becomes the transfer of rotation around the rotation center O.

Referring to FIG. 1 , in some embodiments, in order to ensure the driving stability of the driving unit 20, the non-central driving rotating device further includes a linear guide rail assembly 60 disposed on the base 10 and connected between the driving unit 20 and the driving member 40. In these embodiments, the linear guide rail assembly 60 includes a slide rail 61 and a slider 62, the slide rail 61 is fixedly disposed on the base 10, the slider 62 is slidably inserted outside the slide rail 61, and the slider 62 is connected between the nut 23 of the driving unit 20 and the driving member 40. Thus, the power of the driving unit 20 can be stably transmitted to the driver 40 through the linear guide assembly 60, so that the driver 40 can be stably driven to move.

Although the present disclosure has been disclosed as above with some embodiments, it is not intended to limit the present disclosure. Anyone with ordinary knowledge in the relevant technical field may make some changes and modifications without departing from the spirit and scope of the present disclosure. Therefore, the scope of patent protection of this case shall be subject to the scope of the patent application attached to this specification.

10: base 11: through hole 20: drive unit 21: motor 22: screw 23: nut 30: drive assembly 31: fixed component 32: displacement component 321: first displacement component 3211: first protrusion 322: second displacement component 3221: second protrusion 33: linear guide device 331: fixed rail 332: rolling element 333: sliding rail 34: rotating structure 341: inner ring 342: outer ring 35: guide channel 36: pulley 40: drive element 41: drive block 50: carrier 51: through hole 60: linear guide assembly 61: Slide rail 62: Slide block D1: First direction D2: Second direction O: Rotation center C: Center point

FIG. 1 is a three-dimensional schematic diagram of an embodiment of a non-central drive rotating device of the present invention. FIG. 2 is a schematic diagram of a partial structural decomposition of an embodiment of a non-central drive rotating device of the present invention. FIG. 3 is a schematic diagram of an enlarged partial structure of FIG. 2. FIG. 4 is a schematic diagram of a top view of an embodiment of a non-central drive rotating device of the present invention. FIG. 5 is a configuration diagram of a driving assembly of an embodiment of a non-central drive rotating device of the present invention.

10: base 11: through hole 20: drive unit 21: motor 22: screw 23: nut 30: drive assembly 31: fixed component 32: displacement component 321: first displacement component 322: second displacement component 33: linear guide device 331: fixed rail 332: rolling element 333: sliding rail 34: rotating structure 341: inner ring 342: outer ring 35: guide channel 36: pulley 40: drive element 41: drive block 50: carrier 51: through hole D1: first direction D2: second direction

Claims (11)

A non-centrally driven rotating device comprises: a base; a driving unit disposed on the base; four driving components, respectively comprising: a fixed component fixed on the base; and a displacement component rotatably and displaceably disposed on the fixed component along a first direction and a second direction perpendicular to the first direction; the distances between each of the driving components in the first direction or the second direction are equal; a driving member connected to the driving unit, and the driving member is connected to the displacement components of each of the driving components and encircles the four driving components; and a carrier disposed on the displacement components of the four driving components. A non-center driven rotating device as described in claim 1, wherein the displacement component includes a first displacement component and a second displacement component, the first displacement component can be linearly displaced on the fixed component, the second displacement component can be linearly displaced on the first displacement component, and the linear displacement directions of the first displacement component and the second displacement component are perpendicular to each other. A non-centrally driven rotating device as described in claim 2, wherein the linear displacement directions of the first displacement components of two adjacent driving assemblies are perpendicular to each other, and the linear displacement directions of the second displacement components of two adjacent driving assemblies are perpendicular to each other. A non-center driven rotating device as described in claim 2, wherein the carrier is rotatably disposed on the second displacement component of each of the driving assemblies. A non-centrally driven rotating device as described in claim 1, wherein the driving member is a steel belt or a leather belt. A non-centrally driven rotating device as described in claim 1, wherein the driving unit includes a motor, a screw and a nut, the motor is fixed on the base, the screw is connected to the motor, the nut is movably arranged on the base and is inserted into the outside of the screw, and the driving member is connected to the nut. The non-centrally driven rotating device as described in claim 6 further includes a linear guide rail assembly disposed on the base and connected between the nut and the driving member. A non-center driven rotating device as described in claim 7, wherein the linear guide rail assembly includes a sliding rail and a sliding block, the sliding rail is fixed on the base, the sliding block can be slidably inserted into the sliding rail, and the sliding block is connected between the nut and the driving member. As described in claim 1, the non-centrally driven rotating device, each of the driving components includes a pulley, and the driving member rests against the pulley. A non-centrally driven rotating device as described in claim 1, wherein the base has a through hole, the four drive components are located around the through hole, and the connection lines between the two drive components that are farthest apart among the four drive components intersect in the through hole. A non-centered driven rotating device as described in claim 10, wherein the carrier has a through hole, and the through hole is opposite to the through hole.

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