Modularized safety controller

Abstract

The utility model discloses and provides a modularized safety controller, which comprises a controller and at least one wiring module, the side surface of the controller is provided with a first signal transmission slot, the interior of the wiring module is provided with a gateway circuit board, one side of the wiring module is embedded with a signal transmission plug, and the signal transmission plug is provided with a second signal transmission slot. A first signal transmission slot is formed in one side of the wiring module, a second signal transmission slot is formed in the position, corresponding to the signal transmission plug, of the other side of the wiring module, the signal transmission plug is inserted into the first signal transmission slot or the second signal transmission slot, and a network communication interface is embedded in the wiring module. The gateway circuit board is connected with the network communication interface and the second signal transmission slot through internal wires. According to the utility model, the network communication interface is connected with the robot, a plurality of wiring modules can be freely spliced, and finally signals are gathered to the controller, so that complicated wiring and physical distinguishing of single and double channels are not needed, and wiring with different wire diameters is not needed to be configured according to the distance.

Description

Technical Field

[0001] The present disclosure relates to the technical field of safety controllers, and more particularly to a modular safety controller. Background Art

[0002] In the traditional safety loop connection method, hard wiring is used to transmit safety loop signals between SICK safety PLC and robots in the form of electrical signals. First, when the number of signal points to be transmitted is large, the wiring is very cumbersome. Because one safety device can only correspond to one safety signal point, and sometimes in order to achieve the corresponding safety level, a dual channel needs to be used for the safety signal point. Therefore, if the hard wiring method is adopted, it is impossible to solve the cumbersome wiring process in the case of a large number of signal points. Because hard wiring is essentially an electrical circuit, to modify the signal, the wiring must be modified, and flexible configuration cannot be achieved. Finally, the traditional hard wiring method also has many limitations in terms of transmission distance. The transmission distance and signal stability are greatly affected by the wire diameter and environmental interference. The farther the transmission distance, the greater the voltage drop of the electrical signal. To solve long-distance signal transmission, only a larger wire diameter can be used. While using a larger wire diameter can solve the voltage drop problem, it may also bring limitations in space and materials at the same time, and may bring new problems. Summary of the Utility Model

[0003] The present disclosure provides a modular safety controller to solve one of the technical problems recognized by the inventor.

[0004] The present disclosure provides a modular safety controller, including a controller and at least one wiring module. A first signal transmission slot is provided on the side of the controller. A gateway circuit board is provided inside the wiring module. A signal transmission plug is embedded on one side of the wiring module. A second signal transmission slot is provided at a position corresponding to the signal transmission plug on the other side of the wiring module. The signal transmission plug is inserted into the first signal transmission slot or the second signal transmission slot. A network communication interface is embedded in the wiring module. The gateway circuit board is connected to the network communication interface and the second signal transmission slot respectively through internal wires.

[0005] Preferably, a first positioning hole is provided on one side of the controller. A plurality of positioning posts are fixedly connected to one side of the wiring module. A second positioning hole is provided at a position corresponding to the positioning posts at the other end of the wiring module. The positioning posts are embedded in the first positioning hole or the second positioning hole.

[0006] Preferably, a USB interface is embedded on the side of the wiring module. The USB interface is connected to the gateway circuit board through internal wires.

[0007] Preferably, a plurality of indicator lights are embedded on the side of the wiring module, and the indicator lights are connected to the gateway circuit board through internal wires.

[0008] Preferably, there are two network communication interfaces, and the two network communication interfaces are respectively arranged on two opposite sides of the wiring module.

[0009] Preferably, a mounting rail is further included, and a slide groove is provided on the side of the controller and the wiring module, and the mounting rail is embedded in the slide groove.

[0010] Preferably, it also includes a limit assembly, there are two limit assemblies, which are symmetrically arranged on the mounting guide rails, the limit assembly includes a limit block, the limit block is sleeved on the mounting guide rail, a side surface of the limit block is provided with a first threaded hole, the first threaded hole is threadedly connected to a first hand screw, one end of the first hand screw is fixedly connected to a first pressure block, the first pressure block is arranged to abut against the mounting guide rail, a side surface of the limit block is fixedly connected to a baffle, the baffle is provided with a second threaded hole, the second threaded hole is threadedly connected to a second hand screw, one end of the second hand screw is fixedly connected to a second pressure block, and the second pressure block is arranged to abut against the controller or the wiring module.

[0011] Preferably, gaskets are fixedly connected to the surfaces of the first pressing block and the second pressing block.

[0012] The beneficial effects of the present disclosure are mainly that: the utility model connects the robot through a network communication interface, and multiple wiring modules can be freely spliced, and finally the signal is aggregated to the controller, without the need for complicated wiring and physical distinction between single and double channels, and without the need to configure connections of different wire diameters according to distance.

[0013] It should be understood that both the foregoing general description and the following specific embodiments are for the purpose of example and illustration and do not necessarily limit the present disclosure. The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate the subject matter of the present disclosure. At the same time, the specification and the drawings are used to explain the principles of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the specific embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the safety controller according to an embodiment of the present disclosure;

[0016] Figure 2 Schematic front view of the safety controller according to an embodiment of the present disclosure;

[0017] Figure 3 Schematic side view of the safety controller according to an embodiment of the present disclosure;

[0018] Figure 4 Schematic diagram of the connection module structure according to an embodiment of the present disclosure Figure 1 ;

[0019] Figure 5 Schematic diagram of the connection module structure according to an embodiment of the present disclosure Figure 2 ;

[0020] Icons: 1 - Controller; 2 - Wiring module; 21 - Signal transmission plug; 22 - Second signal transmission slot; 23 - Network communication interface; 24 - USB interface; 25 - Indicator light; 26 - Positioning post; 27 - Second positioning hole; 28 - Slide groove; 3 - Mounting rail; 4 - Limiting component; 41 - Limiting block; 42 - First threaded hole; 43 - First hand-tightening screw; 44 - First pressing block; 45 - Flap; 46 - Second threaded hole; 47 - Second hand-tightening screw; 48 - Second pressing block. Detailed implementation manners

[0021] The technical solutions of the present disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present disclosure.

[0022] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present disclosure without making creative efforts shall fall within the protection scope of the present disclosure.

[0023] In the description of the present disclosure, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present disclosure. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0024] In the description of the present disclosure, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0025] Embodiment

[0026] As Figures 1-5 shown in the figure, the present embodiment provides a modular safety controller 1, including a controller 1 and at least one wiring module 2. A first signal transmission slot is provided on the side of the controller 1. A gateway circuit board is provided inside the wiring module 2. A signal transmission plug 21 is embedded on one side of the wiring module 2. A second signal transmission slot 22 is provided at a position corresponding to the signal transmission plug 21 on the other side of the wiring module 2. The signal transmission plug 21 is inserted into the first signal transmission slot or the second signal transmission slot 22. A network communication interface 23 is embedded in the wiring module 2. The gateway circuit board is connected to the network communication interface 23 and the second signal transmission slot 22 through internal wires respectively. In the present embodiment, the controller 1 may be a safety PLC controller 1. The signal transmission plug 21 of one wiring module 2 is inserted into the first signal transmission slot of the controller 1. This wiring module 2 is connected to a robot through the network communication interface 23. If other devices need to be connected to achieve different functions, additional wiring modules 2 can be added. The signal transmission plug 21 is inserted into the second signal transmission slot 22 to achieve the series connection between multiple wiring modules 2. Finally, the signals are aggregated to the controller 1, and the robot works under the control of the controller 1.

[0027] Furthermore, a first positioning hole is provided on one side of the controller 1. A plurality of positioning posts 26 are integrally formed on one side of the wiring module 2. A second positioning hole 27 is provided at a position corresponding to the positioning posts 26 on the other side of the wiring module 2. The positioning posts 26 are embedded in the first positioning hole or the second positioning hole 27. In the present embodiment, positioning is performed through the positioning posts 26 and the first positioning hole to ensure the accurate insertion position of the controller 1 and the wiring module 2. Positioning is performed through the positioning posts 26 and the second positioning hole to ensure the accurate series connection position of each wiring module 2.

[0028] Wherein, a USB interface 24 is embedded on the side of the wiring module 2. The USB interface 24 is connected to the gateway circuit board through an internal wire. The computer is connected through the USB interface 24 to perform operations such as updating and configuring the program inside the gateway circuit board.

[0029] Furthermore, several indicator lights 25 are embedded on the side of the wiring module 2, and the indicator lights 25 are connected to the gateway circuit board through internal wires. The indicator lights 25 are used to display the working status, facilitating intuitive observation by the staff.

[0030] Furthermore, the number of the network communication interfaces 23 is two, and the two network communication interfaces 23 are respectively arranged on opposite sides of the wiring module 2. With the two network communication interfaces 23, one can be connected to the robot and the other can be connected to the host computer for signal communication.

[0031] Wherein, an installation rail 3 is further included. Sliding grooves 28 are formed on the sides of the controller 1 and the wiring module 2, and the installation rail 3 is embedded in the sliding grooves 28. The controller 1 and the wiring module 2 are installed by clamping the installation rail 3 with the sliding grooves 28 on the back of the controller 1 and the wiring module 2.

[0032] Specifically, a limiting component 4 is further included. There are two limiting components 4, which are symmetrically arranged on the installation rail 3 respectively. The limiting component 4 includes a limiting block 41. The limiting block 41 is sleeved on the installation rail 3. A first threaded hole 42 is formed on the side of the limiting block 41. A first hand-tightening screw 43 is threadedly connected to the first threaded hole 42. One end of the first hand-tightening screw 43 is fixedly connected to a first pressing block 44. The first pressing block 44 is arranged in contact with the installation rail 3. A retaining piece 45 is fixedly connected to the side of the limiting block 41. A second threaded hole 46 is formed on the retaining piece 45. A second hand-tightening screw 47 is threadedly connected to the second threaded hole 46. One end of the second hand-tightening screw 47 is fixedly connected to a second pressing block 48. The second pressing block 48 is arranged in contact with the controller 1 or the wiring module 2. During installation, first move the limiting blocks 41 on both sides to a position close to the controller 1 and the wiring module 2, and then drive the first pressing block 44 to be in contact with the installation rail 3 by rotating the first hand-tightening bolt, so as to fix the position of the limiting block 41. Then, by rotating the second hand-tightening screw 47, adjust the position of the second pressing block 48 so that the second pressing block 48 is in contact with the side of the controller 1 or the wiring module 2, thereby restricting the positions of the controller 1 and the wiring module 2 and also preventing loosening at the connection between the controller 1 and the wiring module 2.

[0033] Furthermore, gaskets are fixedly connected to the surfaces of the first pressing block 44 and the second pressing block 48. The gaskets are made of soft materials to avoid damage when contacting the installation rail 3, the controller 1 or the wiring module 2.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them; although the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A modular safety controller, characterized in that, include: A controller and at least one wiring module, wherein a first signal transmission slot is provided on a side of the controller, a gateway circuit board is arranged inside the wiring module, a signal transmission plug is embedded in one side of the wiring module, a second signal transmission slot is arranged at a position corresponding to the signal transmission plug on the other side of the wiring module, the signal transmission plug is inserted into the first signal transmission slot or the second signal transmission slot, a network communication interface is embedded in the wiring module, and the gateway circuit board is respectively connected to the network communication interface and the second signal transmission slot through internal wires.

2. The modular safety controller according to claim 1, characterized in that A first positioning hole is provided on one side of the controller, a plurality of positioning posts are fixedly connected to one side of the wiring module, a second positioning hole is provided at the other end of the wiring module at a position corresponding to the positioning post, and the positioning post is embedded in the first positioning hole or the second positioning hole.

3. The modular safety controller according to claim 1, characterized in that, A USB interface is embedded in the side of the wiring module, and the USB interface is connected to the gateway circuit board through an internal wire.

4. A modular safety controller according to claim 1, characterized in that, A plurality of indicator lights are embedded on the side of the wiring module, and the indicator lights are connected to the gateway circuit board through internal wires.

5. A modular safety controller according to claim 1, characterized in that, There are two network communication interfaces, and the two network communication interfaces are respectively arranged on two opposite sides of the wiring module.

6. A modular safety controller according to claim 1, characterized in that, It also includes a mounting rail, and the sides of the controller and the wiring module are provided with sliding grooves, and the mounting rail is embedded in the sliding grooves.

7. A modular safety controller according to claim 6, characterized in that, The invention also includes a limit assembly, wherein there are two limit assemblies, which are symmetrically arranged on the mounting guide rails, and the limit assembly includes a limit block, which is sleeved on the mounting guide rails, and a first threaded hole is opened on the side of the limit block, and a first hand screw is threadedly connected to the first threaded hole, and a first pressure block is fixedly connected to one end of the first hand screw, and the first pressure block is set against the mounting guide rail, and a baffle is fixedly connected to the side of the limit block, and a second threaded hole is arranged on the baffle, and a second hand screw is threadedly connected to the second threaded hole, and a second pressure block is fixedly connected to one end of the second hand screw, and the second pressure block is set against the controller or the wiring module.

8. The modular safety controller according to claim 7, characterized in that Gaskets are fixedly connected to the surfaces of the first pressing block and the second pressing block.

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