Crown block, crown block transportation system and wafer box transportation mechanism

Abstract

The utility model relates to a crown block, a crown block transportation system and a wafer box transportation mechanism, the crown block transportation system comprises a main body unit, the main body unit comprises a vehicle body main body, a first control panel and a main communication assembly, and the first control panel and the main communication assembly are arranged on the vehicle body main body; the grabbing unit comprises a grabbing part, a second control panel and a slave communication assembly, the second control panel is connected with the grabbing part, the slave communication assembly is arranged on the grabbing part, and the slave communication assembly synchronously moves along with the grabbing part; the second control panel is connected with the slave communication assembly through a signal line to realize IO communication signal transmission; and the connecting unit comprises a connecting piece, and the connecting piece is connected with the main body and the grabbing part for signal transmission. According to the utility model, the IO communication line between the grabbing part and the slave communication assembly is not bent, so that the IO communication line breakage fault caused by frequent bending is avoided, and the communication transmission efficiency during the working of the crown block is effectively ensured.

Description

Technical Field

[0001] This utility model relates to the field of overhead crane communication technology, and in particular to an overhead crane, an overhead crane transportation system, and a wafer cassette transportation mechanism. Background Technology

[0002] With the continuous development of the semiconductor industry, challenges remain to improve production efficiency and reduce costs. Overhead crane handling (OHT) systems are an important type of automated material handling system in semiconductor manufacturing plants. By improving material transport efficiency, reducing labor costs, and minimizing contamination risks, they significantly improve the overall production process. In existing CST-type overhead crane handling (OHT) systems, the I / O signals from the gripping unit are transmitted to the slave station of the optical communication module via multi-core cables. The slave and master stations of the optical communication module then communicate using infrared light of a specific wavelength.

[0003] Existing CST-type overhead crane handling (OHT) systems require the optical communication slave and master stations to have aligned light-transmitting windows for sending and receiving signals. The slave module is mounted on a non-rotating metal plate, while the gripper control board is mounted on a rotating metal plate. The I / O lines between the slave and gripper control boards are frequently bent, making them prone to fatigue damage and resulting in I / O signal transmission failure, leading to OHT malfunctions. Furthermore, since the optical communication slave and master stations transmit data via infrared light of a specific wavelength, obstruction of the optical communication module or the presence of other photoelectric sensors or devices with the same wavelength in the environment can cause OHT communication failures. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an overhead crane, an overhead crane transportation system and a wafer box transportation mechanism, which can effectively avoid communication failures caused by the optical communication module being blocked or interfered with, and can also avoid failures caused by the breakage of the IO line.

[0005] To solve the above-mentioned technical problems, this utility model provides an overhead crane, comprising,

[0006] The main unit includes a vehicle body, a first control board, and a main communication component, wherein the first control board and the main communication component are disposed on the vehicle body.

[0007] The gripping unit includes a gripping section, a second control board, and a slave communication component. The second control board is connected to the gripping section, and the slave communication component is disposed on the gripping section. The slave communication component moves synchronously with the gripping section. The second control board and the slave communication component are connected through a signal line to realize the transmission of I / O communication signals.

[0008] A connection unit includes a connector that connects the main body and the gripping part for signal transmission.

[0009] In one embodiment of this utility model, the connector includes a connecting belt and a power cord, wherein the power cord is rigid.

[0010] In one embodiment of this utility model, the power cord includes steel wire.

[0011] In one embodiment of the present invention, an electric slip ring is further provided on the power line, and the electric slip ring is disposed between the power line and the main communication component.

[0012] In one embodiment of the present invention, the main communication component includes a first filtering module and a first communication module, and the first filtering module and the first communication module are communicatively connected.

[0013] In one embodiment of the present invention, the communication component includes a second filtering module and a second communication module, and the second filtering module and the second communication module are communicatively connected.

[0014] In one embodiment of the present invention, the gripping unit includes a first connecting plate, and the slave communication component and the gripping part are mounted on the first connecting plate.

[0015] In one embodiment of this utility model, the first connecting plate is made of metal.

[0016] This utility model also provides a crane transportation system, including a track and a crane as described above, the crane traveling along the track.

[0017] This utility model also provides a wafer box transport mechanism, including a wafer box and the overhead crane transport system as described above, wherein the wafer box is assembled into the gripping unit of the overhead crane transport system.

[0018] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0019] This utility model describes a crane that includes a main unit, a gripping unit, and a connecting unit. The main unit comprises a crane body, a first control board, and a main communication component. The gripping unit includes a gripping part, a second control board, and a slave communication component. The connecting unit includes a connector. The main and slave communication components transmit signals through the connector. Specifically, the second control board of the gripping unit and the slave communication component transmit I / O signals via a multi-core cable. The slave communication component then loads the received I / O signal onto the power signal of the connector, and transmits the power signal with the I / O signal to the main communication component through the connector. The main communication component receives the power signal with the I / O signal, converts it into an I / O signal, and transmits it to the first control board. This utility model uses the connector as a communication carrier, effectively avoiding communication failures caused by interference or obstruction. Furthermore, this utility model does not impose restrictions on the installation positions of the main and slave communication components. Meanwhile, the communication component of this invention is installed on the gripping part, so there is no relative movement between the communication component and the gripping part, and the two are relatively stationary. This arrangement can prevent the IO communication line between the gripping part and the communication component from bending, thereby avoiding the IO communication line breakage fault caused by frequent bending, and effectively ensuring the communication transmission efficiency when the crane is working. Attached Figure Description

[0020] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings;

[0021] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the present invention.

[0022] Figure 2 This is a schematic diagram of the connection structure of a preferred embodiment of the present invention.

[0023] Figure 3 This is a schematic diagram illustrating the working principle of a preferred embodiment of the present invention.

[0024] Explanation of reference numerals in the accompanying drawings: 10. Vehicle body; 11. First control board; 12. Main communication component; 121. First filter module; 122. First communication module; 20. Grabbing part; 201. First connecting plate; 22. Slave communication component; 221. Second filter module; 222. Second communication module; 3. Connector; 31. Connecting belt; 32. Power cable; 4. Wafer box. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0026] Example 1

[0027] Reference Figures 1 to 3 As shown, this utility model discloses an overhead crane, including a main unit, the main unit including a car body 10, a first control board 11 and a main communication component 12, the first control board 11 and the main communication component 12 are disposed on the car body 10, and the first control board 11 is the main control board of the overhead crane;

[0028] The overhead crane also includes a gripping unit, which includes a gripping section 20, a second control board 21, and a communication component 22. The second control board 21 is connected to the gripping section 20 and is used to control the gripping section 20 to grip the object to be gripped.

[0029] It should be noted that the slave communication component 22 is disposed on the gripping part 20. The slave communication component 22 can move synchronously with the gripping part 20. In this way, the slave communication component 22 and the gripping part 20 are relatively stationary, and the IO communication line between the gripping part 20 and the slave communication component 22 will not be bent, thereby avoiding IO line breakage due to frequent bending.

[0030] The second control board 21 is connected to the slave communication component 22 via a signal line to realize IO communication signal transmission.

[0031] The overhead crane also includes a connection unit, which includes a connector 3. The connector 3 connects the main body 10 of the crane body to the gripping part 20, thereby realizing the electrical connection between the main body 3 of the crane body and the gripping part 20, and connects the main communication component 12 and the slave communication component 22 for signal transmission.

[0032] Therefore, it can be seen that the overhead crane protected by this utility model has a main unit, a gripping unit, and a connecting unit. The main unit includes a crane body, a first control board, and a main communication component. The gripping unit includes a gripping part, a second control board, and a slave communication component. The connecting unit includes a connector. The main communication component and the slave communication component transmit signals through the connector. Specifically, the second control board of the gripping unit and the slave communication component transmit I / O signals through a multi-core cable. Then, the slave communication component loads the received I / O signal onto the power signal of the connector, and transmits the power signal loaded with the I / O signal to the main communication component through the connector. The main communication component receives the power signal loaded with the I / O signal, converts it into an I / O signal, and transmits it to the first control board. This utility model uses the connector as a communication carrier, effectively avoiding communication failures caused by interference or obstruction. Furthermore, this utility model does not impose restrictions on the installation position of the main communication component and the slave communication component. Meanwhile, the slave communication component of this utility model is installed on the gripping part, so there is no relative movement between the communication component and the gripping part, and the two are relatively stationary. This arrangement can prevent the IO communication line between the gripping part and the slave communication component from bending, thereby avoiding IO communication line breakage due to frequent bending.

[0033] In a preferred embodiment, the connector 3 includes a connecting belt 31 and a power cord 32, the power cord 32 being rigid. The power cord 32 includes, but is not limited to, steel wire, thereby using the steel wire as a communication carrier to effectively solve communication failures caused by interference or obstruction.

[0034] In a preferred embodiment, the power line 32 is further provided with an electrical slip ring 320, which is disposed between the power line 32 and the main communication component 12. The electrical slip ring 320 is used to transmit power and signal power.

[0035] Furthermore, the main communication component 12 includes a first filtering module 121 and a first communication module 122, and the first filtering module 121 and the first communication module 122 are connected in communication.

[0036] Accordingly, the communication component 22 includes a second filtering module 221 and a second communication module 222, and the second filtering module 221 and the second communication module 222 are connected in communication.

[0037] It should be noted that the first communication module 122 uses a first pCOM box, which includes, but is not limited to, an E84 module. The E84 module cooperates with the first filtering module 121 to convert I / O signals into electrical signals. Additionally, the second communication module 222 uses a second pCOM box, which includes, but is not limited to, an E84 module. The E84 module cooperates with the second filtering module 222 to convert I / O signals into electrical signals.

[0038] In a preferred embodiment, the gripping unit includes a first connecting plate 201, and the communication component 22 and the gripping part 20 are mounted on the first connecting plate 201.

[0039] In detail, the first connecting plate 201 is made of metal.

[0040] Example 2

[0041] This utility model also discloses a crane transportation system, including a track and a crane as described in Embodiment 1, the crane being able to travel along the track and run along the track to a designated position.

[0042] Therefore, it can be seen that the overhead crane transportation system protected by this utility model, by adopting the overhead crane as described in Embodiment 1, can avoid the failure of IO communication line breakage due to frequent bending compared with the prior art, and effectively ensure the communication transmission efficiency when the overhead crane is working.

[0043] Example 3

[0044] This utility model also discloses a wafer cassette transport mechanism, including a wafer cassette 4 and a crane transport system as described in Embodiment 2, wherein the wafer cassette 4 is assembled to the gripping unit of the crane transport system.

[0045] In a preferred embodiment, the wafer cassette 4 is mounted on the second connecting plate 201 of the gripping unit.

[0046] The wafer cassette 4 includes a cassette body and multiple storage slots, which are arranged at intervals along the height direction in the cassette body. Wafers to be transferred can be placed in the storage slots.

[0047] Therefore, it can be seen that the wafer cassette transport mechanism to be protected by this utility model, by adopting the overhead crane transport system as described in Embodiment 2, can avoid the IO communication line breakage caused by frequent bending compared with the prior art, thereby effectively ensuring the communication transmission efficiency when the overhead crane is working.

[0048] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0049] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0050] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0051] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An overhead crane, characterized in that: include, A main unit, comprising a vehicle body, a first control panel and a main communication component, wherein the first control panel and the main communication component are arranged on the vehicle body; A gripping unit, comprising a gripping part, a second control board and a slave communication component, wherein the second control board is connected to the gripping part, the slave communication component is arranged on the gripping part, the slave communication component moves synchronously with the gripping part, and the second control board is connected to the slave communication component through a signal line to realize IO communication signal transmission; The connecting unit includes a connecting piece, wherein the connecting piece connects the main body and the grasping portion to perform signal transmission.

2. An overhead travelling crane according to claim 1, characterized in that: The connecting member comprises a connecting belt and a power cord, and the power cord has rigidity.

3. The overhead travelling crane according to claim 2, characterized in that: The power cord includes a steel wire.

4. An overhead travelling crane according to claim 2 or 3, characterized in that: The power line is also provided with an electric slip ring, and the electric slip ring is arranged between the power line and the main communication component.

5. The overhead travelling crane according to claim 1, characterized in that: The main communication component includes a first filtering module and a first communication module, and the first filtering module and the first communication module are communicatively connected with each other.

6. The overhead travelling crane according to claim 1, characterized in that: The slave communication component includes a second filtering module and a second communication module, and the second filtering module and the second communication module are communicatively connected with each other.

7. The overhead travelling crane according to claim 1, characterized in that: The grabbing unit includes a first connecting plate, and the slave communication component and the grabbing portion are mounted on the first connecting plate.

8. An overhead travelling crane according to claim 7, characterized in that: The first connecting plate is made of metal.

9. An overhead crane transportation system, characterized in that: The invention comprises a track and an overhead travelling vehicle as claimed in any one of claims 1 to 8, wherein the overhead travelling vehicle moves along the track.

10. A wafer box transport mechanism, characterized in that: It comprises a wafer box and the overhead crane transportation system as claimed in claim 9, wherein the wafer box is assembled on a grabbing unit of the overhead crane transportation system.

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