CN211457144U

CN211457144U - Bus extension device connected with numerical control system through network interface and numerical control equipment

Info

Publication number: CN211457144U
Application number: CN201922325119.7U
Authority: CN
Inventors: 林少君
Original assignee: Quanzhou Liyide Intelligent Technology Co Ltd
Current assignee: Quanzhou Liyide Intelligent Technology Co Ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-09-08
Anticipated expiration: 2029-12-23

Abstract

The utility model provides a through network interface connection numerical control system's bus extension device, include the treater of being connected through network interface unit and numerical control system both way communication, bus communication protocol unit with treater both way connection, the extension unit of being connected with bus communication protocol unit, and power supply unit and the key unit of being connected with the treater respectively, bus communication protocol unit includes respectively with treater both way connection's multiple bus, network interface is provided with multiple numerical control system network communication protocol, the key unit has a plurality of switching buttons with multiple numerical control system network communication protocol one-to-one. The utility model also provides a numerical control equipment. The utility model discloses only need an extension unit can correspond different numerical control systems, reduce cost can unified planning, unified wiring, reduces the requirement to technical staff.

Description

Bus extension device connected with numerical control system through network interface and numerical control equipment

Technical Field

The utility model relates to a through network interface connection numerical control system's bus extension device and numerical control equipment.

Background

In the prior art, the numerical control device may have multiple types of numerical control systems, and each type of numerical control system is equipped with a set of expansion device, such as an operation panel, an IO unit, an AD conversion device, a DA conversion device, and the like. The expanding equipment of various numerical control systems on the market has high purchasing cost, high separate maintenance cost and high requirements on the capability and knowledge storage of technicians. And the expansion equipment of various numerical control systems has a unique communication bus and cannot be shared, and moreover, the appearance and the installation size of the expansion equipment of different numerical control systems are different, so that the numerical control equipment cannot be uniformly planned, installed, wired and the like, and a user also needs to switch the corresponding expansion equipment while switching the numerical control system.

SUMMERY OF THE UTILITY MODEL

The utility model aims at prior art not enough, provide a through network interface connection numerical control system's bus extension device and numerical control equipment, only need an extension unit can correspond different numerical control systems, reduce cost, can unify planning, unified wiring, reduce the requirement to technical staff.

The utility model discloses a following technical scheme realizes:

the bus extension device is connected with the numerical control system through a network interface, and comprises a processor which is in bidirectional communication connection with the numerical control system through a network interface unit, a bus communication protocol unit which is in bidirectional connection with the processor, an extension unit which is connected with the bus communication protocol unit, and a power supply unit and a key unit which are respectively connected with the processor, wherein the bus communication protocol unit comprises a plurality of bus communication protocols which are respectively in bidirectional connection with the processor, the network interface is provided with a plurality of numerical control system network communication protocols, the key unit is provided with a plurality of switching keys which are in one-to-one correspondence with the plurality of numerical control system network communication protocols, and the processor is used for converting signals transmitted between the numerical control system and the bus communication protocol unit, and selecting a corresponding network communication protocol of the numerical control system to be connected with the numerical control system according to the signal sent by the key unit, and selecting a corresponding bus to be connected with the expansion unit.

Further, the network interface unit includes an ethernet communication interface chip.

Further, the bus communication protocol unit comprises a MODBUS bus communication protocol, a CAN bus communication protocol and an EtherCAT bus communication protocol.

Further, the ethernet communication interface chip includes one or more of CH395, W5500, and ENC28J 60.

Further, the processor comprises a single chip microcomputer, an MCU, a CPU, a DSP, an FPGA, a CPLD or an ARM.

Further, the expansion unit includes one or more of an IO unit, an operation panel, a handheld unit, an AD conversion device, a DA conversion device, and a servo axis driving device.

Further, the key is a button key, a knob key or a dial key.

The utility model discloses still realize through following technical scheme:

a numerical control device comprises a plurality of numerical control systems and further comprises any one of the bus expansion devices.

The utility model discloses following beneficial effect has:

1. the utility model discloses be provided with network interface between numerical control system and extension unit, treater and bus communication protocol unit, bus communication protocol unit is provided with various bus communication protocol, network interface then is provided with multiple network communication protocol that corresponds with each numerical control system respectively, when numerical control system will be switched, send signal through the button unit, the treater is then according to the network communication protocol that the numerical control system that this signal selection will be switched corresponds and this numerical control system is connected, and according to this numerical control system selection corresponding bus communication protocol, the signal conversion of rethread treater, can realize information interaction between numerical control system and the extension unit, so only need an extension unit can correspond different numerical control systems, the user also need not to switch the extension unit when switching numerical control system, even make numerical control equipment use more nimble, the function is powerful big, the numerical control equipment is used, The compatibility is stronger, the expenses of purchasing and maintaining the extension unit are reduced, and the unified planning and the unified wiring during the electrical design are facilitated.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 is a schematic block diagram of the present invention.

1. A numerical control system; 2. a network interface unit; 3. a processor; 4. a bus communication protocol unit; 5. an extension unit; 6. a power supply unit; 7. a key unit.

Detailed Description

As shown in fig. 1, the numerical control device includes a bus extension device and a plurality of numerical control systems 1, the bus extension device includes a processor 3 connected with the numerical control system 1 in a bidirectional communication manner through a network interface unit 2, a bus communication protocol unit 4 connected with the processor 3 in a bidirectional communication manner, an extension unit 5 connected with the bus communication protocol unit 4, and a power supply unit 6 and a key unit 7 respectively connected with the processor 3, the bus communication protocol unit 4 includes a plurality of bus communication protocols respectively connected with the processor 3 in a bidirectional manner, the network interface is provided with a plurality of numerical control system network communication protocols, the key unit 7 has a plurality of switching keys corresponding to the plurality of numerical control system network communication protocols one to one, the processor 3 is used for converting signals transmitted between the numerical control systems 1 and the bus communication protocol unit 4, and selecting the corresponding numerical control system network communication protocol to connect with the numerical control system 1 according to the signals sent by the key unit 7, and selects the corresponding bus communication protocol to connect with the expansion unit 5. Wherein the power supply unit 6 is prior art.

The network interface unit 2 includes an ethernet communication interface chip, which is W5500 in this embodiment.

The bus communication protocol unit 4 comprises a MODBUS bus communication protocol, a CAN bus communication protocol and an EtherCAT bus communication protocol.

In this embodiment, the processor 3 is an MCU model HT47C 20-1. The expansion unit 5 includes an IO unit, an operation panel, a handheld unit, an AD conversion device, a DA conversion device, and a servo axis drive device. The devices included in the extension unit 5 can be connected to the processor 3 via one of three bus communication protocols included in the bus communication protocol unit 4, and the specific bus communication protocol is selected and determined by the processor 3 according to the signal sent by the key unit 7 and the specific extension unit 5. The key is a knob key. The prior art is related to the rotation key connected to the processor 3, so that the processor 3 selects a corresponding network communication protocol according to a signal sent by the processor.

The above description is only a preferred embodiment of the present invention, and therefore the scope of the present invention should not be limited thereby, and all equivalent changes and modifications made within the scope of the claims and the specification should be considered within the scope of the present invention.

Claims

1. The bus extension device is connected with a numerical control system through a network interface, and is characterized in that: the processor is used for converting signals transmitted between the numerical control system and the bus communication protocol unit, selecting the corresponding numerical control system network communication protocol to be connected with the numerical control system according to the signals sent by the key unit, and selecting the corresponding bus to be connected with the extension unit.

2. The bus extension device connected to a numerical control system through a network interface according to claim 1, characterized in that: the network interface unit includes an ethernet communication interface chip.

3. The bus extension device connected to a numerical control system through a network interface according to claim 2, characterized in that: the bus communication protocol unit comprises an MODBUS bus communication protocol, a CAN bus communication protocol and an EtherCAT bus communication protocol.

4. The bus extension device connected to a numerical control system through a network interface according to claim 2 or 3, characterized in that: the Ethernet communication interface chip includes one or more of CH395, W5500, and ENC28J 60.

5. The bus extension device connected to a numerical control system through a network interface according to claim 1, 2 or 3, wherein: the processor comprises a singlechip, an MCU, a CPU, a DSP, an FPGA, a CPLD or an ARM.

6. The bus extension device connected to a numerical control system through a network interface according to claim 1, 2 or 3, wherein: the expansion unit comprises one or more of an IO unit, an operation panel, a handheld unit, an AD conversion device, a DA conversion device and a servo shaft driving device.

7. The bus extension device connected to a numerical control system through a network interface according to claim 1, 2 or 3, wherein: the keys are button keys, knob keys or dial keys.

8. A numerical control device comprises a plurality of numerical control systems, and is characterized in that: further comprising a bus extension device as claimed in any one of claims 1-7.