TW201904843A - Positioning Base - Google Patents

Abstract

A positioning base disposed at the bottom of a transporting box is disclosed, wherein the positioning base comprises: a base plate; at least three positioning region; and at least one supporting region. The positioning region and the supporting region of the positioning base may be engaged respectively to a positioning pin and the supporting pin of the transporting device.

Description

Positioning base

The invention relates to a positioning base, in particular to a positioning base arranged at the bottom of the conveying box.

Commonly used for handling wafers or reticle transfer boxes are approximately 200 mm, 300 mm, and 450 mm. They are mounted on a processing or handling device using a positioning base. Currently, the conventional positioning base is such as Zhonghua. The substrate storage container disclosed in the Republic of China Patent No. I260729 has three positioning points of the inner ring outer ring to position and support the transfer box. However, as the size of the wafer becomes larger, the size and weight of the transfer box used in the handling process must be increased. Therefore, if the transfer box is supported by the conventional support of three positioning points, the transfer box is The amount of deformation and the stress on the support point will become larger, which may reduce the service life of the transfer box or cause the positioning point of the transfer box to be misaligned, thereby causing damage to the wafer or the photomask stored in the transfer case. It also increases the safety concerns of staff in the semiconductor plant.

Therefore, there is a need for a novel positioning base that can be deployed in a large-sized transport box and that adds positioning points and support points to disperse the weight of the transport box applied to the positioning base, thereby stabilizing the positioning position of the transport box. And reduce the amount of deformation of the transfer box.

In order to achieve the above object, the present invention provides a positioning base disposed at the bottom of an oversized transport box, the positioning base being provided with a positioning portion and a supporting portion when the transport box is mounted on a transport device by the positioning base The positioning portion can provide the function of positioning and supporting, and the supporting portion can provide additional supporting force to disperse the weight of the conveying box.

The positioning base disclosed in the present invention is disposed at the bottom of a transport box to carry the transport box. The positioning base comprises: a plate body comprising a top surface and a bottom surface opposite to the top surface, the top surface facing the transport box; at least three positioning portions disposed on a bottom surface of the board body; and at least one The support portion is disposed on the bottom surface of the plate body; wherein the positioning base is respectively mounted on the at least one positioning pin corresponding to the positioning portion in the transport device through the positioning portion and the support portion and correspondingly supported At least one support pin.

According to the above positioning base, a center line of the plate body is defined in a direction perpendicular to a door body of the transfer box, and the positioning portion is symmetrically disposed on the plate body based on the center line. The support portion is also symmetrically disposed on the plate body with the center line as a reference.

In the present invention, the maximum number of the positioning portions is not particularly limited, and may be singular or plural, as long as it is symmetrically disposed on the plate body based on the center line; There is no particular limitation on the number, and it may be singular or plural as long as it can be symmetrically disposed on the plate body. However, in a preferred embodiment, referring to FIG. 2, the number of the positioning portions is three, one of which is disposed on a center line of the plate body, and the two are based on the center line and are symmetric. The grounding portion is disposed on the plate body, and the number of the supporting portions is two, and is symmetrically disposed on the plate body based on the center line.

In the present invention, each positioning portion includes at least one positioning point, the positioning point is concave from the bottom surface toward the top surface, and has a first inner surface and a first inclined surface, the first tilt The surface surrounds the first inner surface, and when the positioning base is mounted on the transport device, the first inclined surface or the first inner surface contacts the positioning pin. The number of the positioning points is not particularly limited, and may depend on the type of the transport device to which the positioning base is fitted.

In a preferred embodiment, each positioning portion includes two positioning points, which are an outer ring positioning point and an inner ring positioning point, and the outer ring positioning point is adjacent to the plate body. The outer ring positioning point is close to the center of the plate body, and when the positioning base is mounted on the transport device, the positioning pin only corresponds to one of the outer ring positioning point or the inner ring positioning point And contact with it.

In addition, in the above positioning base, the first inclined mask of the positioning point has a smooth surface or a rough surface to provide different friction between the positioning point and the positioning pin, for example, The first inclined surface may have a rough surface, so that the friction between the positioning point and the positioning pin can be reduced, so that the positioning pin can smoothly contact the first inner surface.

In the present invention, the support portion includes at least one support hole, the support hole is recessed from the bottom surface toward the top surface, and has a second inner surface and a second inclined surface, the second slope The surface surrounds the second inner surface, and when the positioning base is mounted on the transport device, the second inclined surface or the second inner surface contacts the support pin. The number of the supporting holes is not particularly limited, and may be determined according to the type of the transport device to which the positioning base is fitted. In addition, the number of supporting holes included in one supporting portion is preferably determined by the positioning included in one positioning portion. The number of points is the same.

In a preferred embodiment, each support portion includes two support holes, which are an outer ring support hole and an inner ring support hole, and the outer ring support hole is adjacent to the plate body. The outer ring support hole is close to the center of the plate body, and when the positioning base is mounted on the transport device, the support pin only corresponds to one of the outer ring support hole or the support hole, and Contact with it.

The second inclined mask has a smooth surface or a rough surface to provide different friction between the support hole and the support pin. For example, the second inclined surface may have a rough surface, thus The friction between the support hole and the support pin can be reduced, so that the support pin can smoothly contact the second inner surface.

The positioning base described above increases the number of positioning points and the supporting points, and can be disposed at the bottom of the large-sized conveying box to disperse the weight of the conveying box applied to the positioning base, thereby stabilizing the positioning position of the conveying box and reducing The amount of deformation of the transfer box.

The embodiments of the present invention are described below by way of specific embodiments, and those skilled in the art can readily appreciate other advantages and effects of the present invention from the disclosure herein. It should be noted that the following drawings are simplified schematic diagrams. The number, shape and size of components in the drawings can be changed arbitrarily according to actual implementation conditions, and the component layout state can be more complicated. The present invention can also be implemented or applied by various other specific embodiments. The details of the present specification can also be modified and changed without departing from the spirit of the present invention.

First, as shown in FIG. 1, the positioning base 1 provided by the present invention is disposed at the bottom of a transport box 2, and the transport box 2 includes a door body 21.

Referring to FIG. 2 , FIG. 2 is a bottom view of the positioning base 1 , wherein the positioning base includes a plate body 10 , three positioning portions 11 , and two support portions 12 . The board body 10 includes a top surface 101 and a bottom surface 102 opposite to the top surface 101. The top surface 101 faces the bottom of the transport box 2 and is in contact with the transport box 2. The bottom surface 102 is provided with three positioning portions 11 and two support portions 12. In this embodiment, the center line 3 of the board body 10 is equally divided in the direction perpendicular to the door body 21, and the three positioning portions 11 are symmetrically disposed on the board body with the center line 3 as a reference. 10, as shown in FIG. 2, wherein two positioning portions 11 are symmetrically disposed on the center line 3 and disposed at two corners of the board body 1, and another positioning portion 11 is disposed on the center line 3, and Symmetrically the centerline 3. In addition, the two support portions 12 are also symmetrically disposed on the plate body 10 with the center line 3 as a reference. As shown in FIG. 2, the two support portions 12 are symmetrically disposed on the center line 3 and disposed on the plate body 1. The other two corners.

However, another embodiment of the positioning base 1 is as shown in FIG. 3, and the board 10 can include three positioning portions 11 and four supporting portions 12, wherein the three positioning portions 11 and the four supporting portions 12 are It is symmetrically arranged based on the center line 3 as a reference. However, the number and arrangement positions of the positioning portion 11 and the support portion 12 of the present invention are not limited thereto, and may be provided as long as the center line 3 is symmetrical.

In addition, the positioning base 1 can be mounted in a transport device, and the transport device includes three positioning pins 41 corresponding to the positioning portion 11 and two supporting pins 42 corresponding to the supporting portion 12, so when the positioning base is mounted When the transport device is mounted on the transport device, the positioning pin 41 can be combined with the positioning portion 11, and the support pin 42 can be combined with the support portion 12, so that the transport device 2 can be transported when the transport device 2 is transported keep it steady.

In detail, each positioning portion 11 includes two positioning points, which are an outer ring positioning point 111 and an inner ring positioning point 112. The outer ring positioning point 111 and the inner ring positioning point 112 each have a structure recessed from the bottom surface 102 toward the top surface 101, as shown in FIG. 4, and each has a first inner surface 1112 and a first The inclined surface 1111, and in the embodiment, the outer ring positioning point 111 and the inner ring positioning point 112 are connected to each other to form an elongated groove, and the outer ring positioning point 111 is adjacent to the plate body 10. The outer ring positioning point 112 is near the center of the board body 10. In addition, each support portion 12 also includes two support points, an outer ring support point 121 and an inner ring support point 122. The outer ring support point 121 and the inner ring support point 122 each have a structure recessed from the bottom surface 102 toward the top surface 101, as shown in FIG. 5, and each has a second inner surface 1212 and a second The inclined surface 1211, in the embodiment, the outer ring support point 121 and the inner ring support point 122 are connected to each other to form an elongated groove, and the outer ring support point 121 is adjacent to the plate body 10. The outer ring support point 122 is near the center of the plate body 10.

Then, when the positioning base 1 is mounted on the transport device, the components on the transport device that are in contact with the positioning base 1 have a plurality of positioning pins 41 corresponding to the outer ring positioning point 111 or the inner ring positioning point 112, and A plurality of support pins 42 corresponding to the outer ring support point 121 or the inner ring support point 122. Preferably, each positioning portion 11 corresponds to only one positioning pin 41, and all the positioning pins 41 are disposed corresponding to all the outer ring positioning points 111 or all the inner ring positioning points 112 at the same time; all the supporting pins 42 are simultaneously Corresponding to all the outer ring support points 121 or all the inner ring support points 122, the positioning points and support points corresponding to the positioning pin 41 and the support pin 42 can be designed according to different transport devices.

Referring to FIG. 4 again, when the positioning base 1 is mounted on the transport device, the positioning pin 41 corresponds to the outer ring positioning point 111 and is assembled with the outer ring positioning point 111, as shown in FIG. The 41 series is tightly disposed in the outer ring positioning point 111, and the top surface 411 of the positioning pin 41 is in contact with the first inner surface 1112, and the side surface 412 of the positioning pin 41 is in the portion of the positioning portion 11 The surface, therefore, the positioning pin 41 can be stably assembled in the outer ring positioning point 111, and ensures that the transfer case 2 can be stably mounted on the transport device during transport. Referring to FIG. 5 , when the positioning base 1 is mounted on the transport device, the support pin 42 corresponds to the outer ring support point 121 and is combined with the outer ring support point 42 , and the support pin 42 is attached to the top surface thereof. The 421 is in contact with the second inner surface 1212, and the side surface 422 is not necessarily in contact with the inner surface of the support portion 12, so in this case, the support pin 42 only provides a supporting function, and the positioning base 1 and the transport device are increased. The contact area is evenly distributed to the weight of the transport box 2 to prevent the transport box 2 from being deformed by its own weight.

Furthermore, the first inclined surface 1111 or the second inclined surface 1211 may have a smooth surface or a rough surface, which may be designed according to a required or assembled transport device, and the rough surface may lower the positioning pin 41 or the support pin 42. The friction between the positioning pin 41 and the supporting pin 42 can be smoothly contacted with the first inner surface 1112 and the second inner surface 1212, respectively.

1‧‧‧ positioning base

10‧‧‧ board

101‧‧‧ top surface

102‧‧‧ bottom

11‧‧‧ Positioning Department

111‧‧‧ outer ring positioning point

1111‧‧‧First inclined surface

1112‧‧‧ first inside

112‧‧‧Inner circle positioning point

12‧‧‧Support

121‧‧‧Outer support points

1211‧‧‧Second inclined surface

1212‧‧‧Second inside

122‧‧‧ inner ring support points

2‧‧‧Transfer box

21‧‧‧

3‧‧‧ center line

41‧‧‧Locating pin

411, 421‧‧‧ top

412, 422‧‧‧ side

42‧‧‧Support pins

1 is a perspective view of a transport case and a positioning base according to an embodiment of the present invention. 2 is a bottom view of a positioning base according to an embodiment of the present invention. 3 is a bottom view of a positioning base according to another embodiment of the present invention. Fig. 4 is a cross-sectional view showing a positioning portion according to an embodiment of the present invention. Fig. 5 is a cross-sectional view showing a support portion according to an embodiment of the present invention.

Claims (11)

A positioning base is disposed at a bottom of a transport box to carry the transport box, wherein the positioning base comprises: a plate body including a top surface and a bottom surface opposite to the top surface, the top surface facing the transport box At least three positioning portions are disposed on a bottom surface of the board body; and at least one supporting portion is disposed on a bottom surface of the board body; wherein the positioning base is respectively mounted through the positioning portion and the supporting portion At least one locating pin corresponding to the positioning portion and at least one supporting pin corresponding to the supporting portion are disposed in a transport device. The positioning base according to claim 1, wherein a center line of the board body is defined in a direction perpendicular to a door body of the transport box, and the positioning unit is symmetrically based on the center line. Set on the board. The positioning base according to claim 2, wherein the support portion is symmetrically disposed on the plate body based on the center line. The positioning base according to claim 2, wherein the number of the positioning portions is three, one of which is disposed on a center line of the plate body, and the two are symmetrically arranged based on the center line. On the board. The positioning base according to claim 3, wherein the number of the supporting portions is two, and the center line is symmetrically disposed on the plate body. The positioning base of claim 2, wherein each positioning portion includes at least one positioning point, the positioning point is concave from the bottom surface toward the top surface, and has a first inner surface and a first inclined surface surrounding the first inner surface. When the positioning base is mounted on the transport device, the first inclined surface or the first inner surface contacts the positioning pin. The positioning base of claim 3, wherein the support portion includes at least one support hole, the support hole is recessed from the bottom surface toward the top surface, and has a second inner surface and a second inclined surface surrounding the second inner surface. When the positioning base is mounted on the transport device, the second inclined surface or the second inner surface contacts the support pin. The positioning base according to claim 6, wherein each positioning portion includes two positioning points, which are an outer ring positioning point and an inner ring positioning point, and the outer ring positioning point Close to the periphery of the plate body, the inner ring positioning point is close to the center of the plate body, and when the positioning base is mounted on the transport device, the positioning pin only corresponds to the outer ring positioning point or the inner ring positioning One of the points and contact with it. The positioning base according to the seventh aspect of the invention, wherein the number of the support holes included in each support portion is two, which are an outer ring support hole and an inner ring support hole, and the outer ring support hole Close to the periphery of the plate body, the inner ring support hole is close to the center of the plate body, and when the positioning base is mounted on the transport device, the support pin only corresponds to the outer ring support hole or the support hole One, and contact with it. The positioning base of claim 6, wherein the first inclined mask has a smooth surface or a rough surface. The positioning base of claim 7, wherein the second inclined mask has a smooth surface or a rough surface.