Multi-axis linkage motion controller

Abstract

The utility model provides a multi-axis linkage motion controller, which comprises a main body assembly, and the main body assembly comprises a shell, a support column, a screw, a circuit board, a core control module, a power supply module, a communication module and an expansion interface. According to the utility model, a plurality of functional modules are integrated on one circuit board and are reasonably arranged, so that the size of the controller is effectively reduced, the space requirement of an industrial field on miniaturized equipment is met, and the overall performance is improved and the production cost is reduced by optimizing the connection and cooperative work among the modules; the competitiveness of the product in the market is enhanced; the key heating module is tightly attached to the heat dissipation plate through the heat conduction silica gel sheet, so that heat is dissipated to the outside through the heat dissipation plate, the problem of heat dissipation difficulty caused by unreasonable internal layout is effectively solved, and the service life is prolonged; by arranging the I / O interface panel and the total interface panel respectively, equipment wiring is greatly facilitated, wiring disorder is reduced, and equipment wiring and maintenance are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of controller technology, and in particular to a multi-axis linkage motion controller. Background Technology

[0002] Multi-axis motion control technology is widely used in modern industrial automation. In the field of CNC machine tools, it enables precise tool movement and machining of complex parts, such as aero-engine blades, achieving micron-level machining accuracy. Industrial robots rely on it for flexible operation; for example, the robotic arms in 3C product manufacturing can quickly and accurately complete component assembly with sub-millimeter-level positioning accuracy. Semiconductor manufacturing equipment relies even more heavily on multi-axis linkage. In lithography machines, wafers and lithography lenses need to move synchronously with nanometer-level precision to ensure chip yield. As various industries continuously increase their requirements for equipment precision, speed, and stability, this technology faces both greater challenges and opportunities.

[0003] Existing multi-axis linkage motion controllers have many shortcomings in structural design, such as unreasonable internal layout leading to heat dissipation difficulties, affecting the long-term stable operation of the controller; scattered interface layout, which is not conducive to equipment wiring and maintenance; and low integration of functional modules, which increases the size and cost of the controller and makes it difficult to meet the needs of industrial sites for miniaturized and high-performance equipment. Therefore, a multi-axis linkage motion controller is proposed. Utility Model Content

[0004] In view of this, the present invention aims to provide a multi-axis linkage motion controller to solve or alleviate the technical problems existing in the prior art, or at least provide a beneficial alternative.

[0005] The technical solution of this utility model embodiment is implemented as follows: a multi-axis linkage motion controller includes a main component, which includes a shell, a support column, screws, a circuit board, a core control module, a power module, a communication module, a motion control module, a storage module, an I / O module, an operation panel, an I / O interface panel, a main interface panel, and an expansion interface;

[0006] The inner bottom wall of the outer casing has four support pillars welded to its four corners. A circuit board is fixedly connected to the upper surface of the four support pillars by screws. A core control module is located at the center of the upper surface of the circuit board. A power module and a communication module are respectively located on the rear two sides of the upper surface of the circuit board near the core control module. A motion control module and a storage module are respectively located on the two sides of the upper surface of the circuit board near the core control module. An I / O module is located on the front part of the upper surface of the circuit board near the motion control module. An operation panel is located on one side of the front surface of the outer casing. An I / O interface panel is located on the other side of the front surface of the outer casing. A main interface panel is located in the middle of the rear surface of the outer casing. Expansion interfaces are located in the middle of both sides of the outer casing.

[0007] More preferably, a cover plate is fixedly connected to the top of the outer shell, a heat dissipation groove is formed in the middle of the upper surface of the cover plate, a heat dissipation plate is fixedly connected to the inner side wall of the heat dissipation groove, a plurality of heat dissipation grooves are formed on the upper surface of the heat dissipation plate, and the upper surfaces of the core control module, power module, communication module, motion control module and storage module are all attached to the lower surface of the heat dissipation plate by thermally conductive silicone sheets.

[0008] More preferably, the rear surface of the outer casing has multiple heat dissipation holes on both sides.

[0009] More preferably, the upper part of the front surface of the operation panel is provided with multiple signal indicator lights, and the lower part of the front surface of the operation panel is provided with multiple control buttons.

[0010] More preferably, the upper and lower parts of the front surface of the I / O interface panel are respectively provided with an optically isolated input port and an optically isolated output port.

[0011] More preferably, the rear surface of the main interface panel is provided with multiple connection interfaces.

[0012] More preferably, the expansion interface is a rectangular slot with metal contacts inside.

[0013] More preferably, shock-absorbing and anti-slip pads are fixedly connected to the four bottom corners of the outer casing.

[0014] The present invention has the following advantages due to the adoption of the above technical solution:

[0015] 1. This utility model integrates numerous functional modules such as the core control module, power supply module, and communication module onto a single circuit board and arranges them in a reasonable manner. This not only effectively reduces the size of the controller and meets the space requirements for miniaturized equipment in industrial settings, but also improves overall performance, reduces production costs, and enhances the product's competitiveness in the market by optimizing the connection and collaborative work between modules.

[0016] 2. This utility model achieves efficient heat transfer to the heat sink by tightly attaching key heat-generating modules such as the core control module and power module to the heat sink through thermally conductive silicone sheets. At the same time, multiple heat dissipation holes are opened on both sides of the rear surface of the shell to form a good heat dissipation channel, which effectively solves the problem of heat dissipation difficulties caused by unreasonable internal layout and extends service life.

[0017] 3. By setting up separate I / O interface panels and a main interface panel, this utility model greatly facilitates equipment wiring, reduces wiring chaos, and lowers the risk of line faults compared to the traditional distributed interface design. It also enables faster line connection and fault diagnosis during equipment installation, debugging, and maintenance, thereby improving work efficiency.

[0018] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a structural view of the present invention from one perspective;

[0021] Figure 2 This is another structural view of the present invention;

[0022] Figure 3 This is a diagram showing the internal structure of the outer shell of this utility model;

[0023] Figure 4 This is a structural diagram of the support column and circuit board of this utility model.

[0024] Reference numerals: 1. Main component; 11. Housing; 12. Support column; 13. Screw; 14. Circuit board; 15. Core control module; 16. Power module; 17. Communication module; 18. Motion control module; 19. Storage module; 20. I / O module; 21. Operation panel; 22. I / O interface panel; 23. Main interface panel; 24. Expansion interface; 25. Cover plate; 26. Heat sink; 27. Heat sink plate; 28. Heat dissipation groove; 29. ​​Thermal conductive silicone pad; 30. Heat dissipation hole; 31. Signal indicator light; 32. Control button; 33. Optically isolated input port; 34. Optically isolated output port; 35. Connection interface; 36. Shock-absorbing and anti-slip pad. Detailed Implementation

[0025] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0026] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0027] like Figures 1-4As shown, this utility model embodiment provides a multi-axis linkage motion controller, including a main component 1. The main component 1 includes a shell 11, a support column 12, screws 13, a circuit board 14, a core control module 15, a power module 16, a communication module 17, a motion control module 18, a storage module 19, an I / O module 20, an operation panel 21, an I / O interface panel 22, a main interface panel 23, and an expansion interface 24.

[0028] Support pillars 12 are welded to the four corners of the inner bottom wall of the outer casing 11. Circuit boards 14 are fixedly connected to the upper surfaces of the four support pillars 12 by screws 13. A core control module 15 is located at the center of the upper surface of the circuit board 14. A power module 16 and a communication module 17 are respectively located on the rear sides of the upper surface of the circuit board 14 near the core control module 15. A motion control module 18 and a storage module 19 are respectively located on the sides of the upper surface of the circuit board 14 near the core control module 15. An I / O module 20 is located on the front of the upper surface of the circuit board 14 near the motion control module 18. An operation panel 21 is located on one side of the front surface of the outer casing 11, and an I / O interface panel 22 is located on the other side of the front surface of the outer casing 11. The middle of the rear surface of the outer casing 11... The housing 11 is equipped with a main interface panel 23, and expansion interfaces 24 are located on both sides of the housing 11. The core control module 15 uses a high-performance Linux-based embedded processor as its core control unit, integrating abundant processing resources. It is responsible for processing motion control commands, data computation, and communication coordination with other modules. This module is located in the center of the housing 11 and is connected to other modules via a high-speed bus on the circuit board 14, ensuring efficient and stable data transmission. The communication module 17 integrates multiple communication interfaces, such as 4xGigE, 1xUSB3.0, 3xUSB2.0, 1xHDMI, 1xRS232, 1xRS485, 2xCAN2.0, and 1xWiFi, to meet different needs. Communication requirements between devices; the motion control module 18 has powerful motion control functions, supporting multi-axis linkage, trajectory planning, continuous interpolation, and other operations. Depending on the number of axes required, a suitable model can be selected. This module includes a dedicated motion control chip and an FPGA (Field-Programmable Gate Array). The FPGA is used to achieve high-speed pulse generation and signal processing, improving the accuracy and response speed of motion control. The motion control module 18 is tightly connected to the core control module 15, receiving control commands and driving the motor. The I / O module 20 has abundant I / O interface resources, including 8 optically isolated input channels (NPN type) and 8 optically isolated outputs for local general-purpose I / O, as well as dedicated positive and negative limit signal and origin signal interfaces for each axis. The I / O module 20 employs opto-isolation technology to enhance anti-interference capabilities, ensuring accurate input of external signals and stable transmission of output control signals. Its layout is close to the motion control module 18, facilitating the acquisition of motion control-related signals and the rapid transmission of control signals to external devices. The storage module 19 is equipped with large-capacity storage devices, such as flash memory and random access memory (RAM). Flash memory is used to store important data such as system programs, motion control algorithms, and device parameters, and is non-volatile, ensuring that data is not lost after power failure. RAM is used for storing and processing runtime data, providing the controller with fast data read and write support. The storage module 19 is directly connected to the core control module 15, ensuring high-speed data access.

[0029] In one embodiment, specifically: a cover plate 25 is fixedly connected to the top of the outer casing 11; a heat dissipation groove 26 is formed in the middle of the upper surface of the cover plate 25; a heat dissipation plate 27 is fixedly connected to the inner sidewall of the heat dissipation groove 26; a plurality of heat dissipation grooves 28 are formed on the upper surface of the heat dissipation plate 27; the upper surfaces of the core control module 15, power module 16, communication module 17, motion control module 18, and storage module 19 are all attached to the lower surface of the heat dissipation plate 27 by thermally conductive silicone pads 29; wherein, the cover plate 25 adapted to the outer casing 11 can be made of materials with good heat dissipation performance such as aluminum alloy; the heat dissipation plate 27 is generally made of copper or aluminum, which has high thermal conductivity; the thermally conductive silicone pads 29 have good thermal conductivity. The thermal performance and insulation properties, as well as the size and thickness, are selected according to the bonding requirements between each module and the heat sink 27. The cover plate 25 fixed to the top of the housing 11, along with its heat dissipation grooves 26, heat sink 27, and heat dissipation recesses 28, together with the thermally conductive silicone pads 29 attached to key heat-generating components such as the core control module 15 and the power module 16, form an efficient heat dissipation system. The thermally conductive silicone pads 29 can quickly conduct the heat generated by the module to the heat sink 27, and the heat sink 27 then dissipates the heat through the heat dissipation recesses 28 to increase the heat dissipation area, thereby maintaining a suitable operating temperature for each module, preventing overheating that could lead to performance degradation, malfunctions, or shortened lifespan, and ensuring stable and reliable operation of the controller. This is especially advantageous under long-term high-load conditions.

[0030] In one embodiment, specifically: multiple heat dissipation holes 30 are provided on both sides of the rear surface of the housing 11. The heat dissipation holes 30 on both sides of the rear surface of the housing 11 facilitate the dissipation of heat emitted by the various modules inside the housing 11, thereby further improving the heat dissipation effect.

[0031] In one embodiment, specifically: the upper part of the front surface of the operation panel 21 is provided with multiple signal indicator lights 31, and the lower part of the front surface of the operation panel 21 is provided with multiple control buttons 32. The multiple signal indicator lights 31 include power status indicator lights, running status indicator lights, alarm status indicator lights, communication status indicator lights and axis motion status indicator lights, and each status indicator light is provided with a corresponding white silkscreen function label below it; the multiple control buttons 32 include a start button, a stop button and a reset button, which are used to manually control the multi-axis linkage motion controller.

[0032] In one embodiment, specifically: the upper and lower parts of the front surface of the I / O interface panel 22 are respectively provided with an optically isolated input port 33 and an optically isolated output port 34. The optically isolated input port 33 transmits optical signals, which can effectively isolate external input signals from the internal circuit of the controller, prevent external interference signals from entering the controller, and ensure the accuracy and stability of the input signals. For example, in a workshop environment where motors frequently start and stop, using the optically isolated input port 33 to receive limit switch signals can avoid the electromagnetic interference generated by motor start and stop from affecting the normal transmission of signals, ensuring that the controller can accurately obtain the position information of the equipment. The optically isolated output port 34 also uses optical signal isolation, which can prevent interference generated by the internal circuit of the controller from affecting external actuators. When the controller outputs control signals to drive devices such as solenoid valves, the optically isolated output port 34 can prevent the electrical noise inside the controller from interfering with the normal operation of the solenoid valve, thereby improving the reliability of the control.

[0033] In one embodiment, specifically: the rear surface of the main interface panel 23 is provided with multiple connection interfaces 35, including 4 x GigE, 1 x USB 3.0, 3 x USB 2.0, 1 x HDMI, 1 x RS232, 1 x RS485, 2 x CAN 2.0, and 1 x WiFi interface. The diverse range of connection interfaces 35 on the main interface panel 23 gives the multi-axis linkage motion controller strong versatility and expandability. It can easily connect to various types of external devices to meet the needs of different industrial application scenarios. Whether it's high-speed data transmission, general device connection, serial communication, or wireless communication, all can be achieved through the corresponding interfaces. This not only improves the controller's applicability and flexibility but also facilitates system upgrades and expansions, enabling the controller to adapt to constantly changing industrial production needs and better integrate into the industrial automation production system.

[0034] In one embodiment, specifically: the expansion interface 24 is a rectangular slot with metal contacts inside. Through the expansion interface 24, users can insert dedicated axis expansion cards to increase the number of axes that the controller can control. These expansion cards connect with the metal contacts inside the slot to achieve communication and collaborative work with the controller's core circuitry, enabling the controller to drive more motors and achieve more complex motion trajectory control, such as expanding from five-axis machining to seven or more axes to meet the machining needs of high-precision and complex parts in aerospace and other fields. In addition to axis expansion, specific functions can also be enhanced. For example, a high-performance motion control algorithm module expansion card can be inserted to optimize the controller's motion control algorithm and improve the accuracy and speed of motion control. Alternatively, a computing module expansion card with stronger data processing capabilities can be inserted to improve the controller's performance when processing large amounts of sensor data and complex tasks, ensuring that the system can still operate stably under high loads and meeting the ever-increasing demands for equipment performance in industrial automation production.

[0035] In one embodiment, specifically: shock-absorbing and anti-slip pads 36 are fixedly connected to the four bottom corners of the outer casing 11.

[0036] The shock-absorbing and anti-slip pad 36 effectively absorbs and buffers vibrations, thereby reducing the impact of vibrations on the precision electronic components inside the controller, such as the core control module 15, communication module 17, and storage module 19. This prevents problems such as loose component pins, cracked solder joints, and chip damage caused by long-term vibrations, ensuring the normal operation and service life of the controller and reducing the risk of equipment failure. At the same time, the shock-absorbing and anti-slip pad 36 can increase the friction between the housing 11 and the mounting surface, preventing the controller from shifting or sliding during equipment operation.

[0037] In operation, this invention works as follows: external devices or host computers transmit control signals to the core control module 15 via the communication module 17 through the connection interface 35 on the main interface panel 23. For example, in a CNC machine tool scenario, machining instructions generated by CAD / CAM software are transmitted to the controller via the Ethernet interface. Simultaneously, the control buttons 32 on the operation panel 21 can be used to manually input control instructions, such as start, stop, and pause. These instructions are also transmitted to the core control module 15. After receiving the signals, the core control module 15 analyzes and processes them according to preset algorithms and programs. It reads relevant motion control parameters and equipment configuration information from the storage module 19. The core control module 15 generates specific motion control commands, which include key information such as the direction, speed, and displacement of each axis. The core control module 15 transmits the processed motion control commands to the motion control module 18 via the lines on the circuit board 14. Simultaneously, if data interaction with external devices is involved, the communication module 17 works with the main interface panel 23 to complete data transmission, reception, and conversion. The I / O module 20 is responsible for collecting external signals from the optically isolated input port 33 of the I / O interface panel 22, such as limit switch signals and sensor signals, and transmitting them to the core control module 15. The motion control module 18 generates corresponding pulse signals or... according to the received commands. Analog signals drive the connected motors to operate, thereby controlling the movement of the mechanical axes. In multi-axis linkage scenarios, the motion control module 18 precisely coordinates the movement of each axis motor to ensure complex motion trajectories, such as ensuring the tool moves along a predetermined path when machining complex curved surfaces. During the motion, feedback signals from the motor encoders, various sensors, etc., are transmitted back to the core control module 15 through the I / O module 20 and the communication module 17. The core control module 15 determines whether the motion status is normal based on this feedback information. At the same time, the core control module 15 also controls the signal indicator lights 31 on the operation panel 21 to display the controller's working status, such as running, stopped, fault, etc. This allows operators to monitor the equipment status in real time. If users have additional functional requirements, they can insert a corresponding expansion card through the expansion interface 24. After the expansion card is connected to the circuit on the circuit board 14, it works in conjunction with the core control module 15 to achieve functional expansion, such as increasing the number of axes or expanding the communication interface type. During operation, if an abnormal situation occurs, such as motor overload or overtravel, the I / O module 20 will collect the relevant signals and transmit them to the core control module 15. The core control module 15 will then respond by controlling the motion control module 18 to stop the motor. At the same time, it will issue an alarm signal through the signal indicator 31 on the operation panel 21 or through an external device to protect the safety of the equipment and personnel.

[0038] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A multi-axis motion controller, characterized by: The utility model relates to a kind of intelligent motion control system, including main body component (1), the main body component (1) includes shell (11), support column (12), screw (13), circuit board (14), core control module (15), power module (16), communication module (17), motion control module (18), storage module (19), I / O module (20), operation panel (21), I / O interface panel (22), total interface panel (23) and extension interface (24); The inner bottom wall of the shell (11) is welded with a support column (12) at each corner, and the upper surface of the four support columns (12) is fixedly connected with a circuit board (14) by a screw (13). The upper surface of the circuit board (14) is provided with a core control module (15) at the center, and the upper surface of the circuit board (14) is provided with a power module (16) and a communication module (17) on both sides of the rear part near the core control module (15), respectively. The upper surface of the circuit board (14) is provided with a motion control module (18) and a storage module (19) on both sides near the core control module (15), respectively. The upper surface of the circuit board (14) is provided with an I / O module (20) in front of the motion control module (18). The front surface of the shell (11) is provided with an operation panel (21) on one side, and the front surface of the shell (11) is provided with an I / O interface panel (22) on the other side. The rear surface of the shell (11) is provided with a total interface panel (23) in the middle, and the middle part of both sides of the shell (11) is provided with an extension interface (24).

2. A multi-axis motion controller according to claim 1, wherein: The top of the shell (11) is fixedly connected with a cover plate (25), and the upper surface of the cover plate (25) is provided with a heat dissipation groove (26) in the middle. The inner side wall of the heat dissipation groove (26) is fixedly connected with a heat dissipation plate (27), and the upper surface of the heat dissipation plate (27) is provided with a plurality of heat dissipation grooves (28). The upper surfaces of the core control module (15), the power module (16), the communication module (17), the motion control module (18), and the storage module (19) are connected to the lower surface of the heat dissipation plate (27) by a heat-conducting silica gel sheet (29).

3. A multi-axis motion controller according to claim 2, wherein: The rear surface of the shell (11) is provided with a plurality of heat dissipation holes (30) on both sides.

4. The multi-axis motion controller of claim 1, wherein: The front surface of the operation panel (21) is provided with a plurality of signal indicator lights (31) on the upper part, and a plurality of control buttons (32) are provided on the lower part of the front surface of the operation panel (21).

5. The multi-axis motion controller of claim 1, wherein: The front surface of the I / O interface panel (22) is provided with an optical isolation input socket (33) and an optical isolation output socket (34) on the upper part and the lower part, respectively.

6. The multi-axis motion controller of claim 1, wherein: The rear surface of the total interface panel (23) is provided with a plurality of connection interfaces (35).

7. The multi-axis motion controller of claim 1, wherein: The extension interface (24) is a rectangular slot, and the inside of the slot is provided with a metal contact.

8. The multi-axis motion controller of claim 1, wherein: The bottom of the shell (11) is fixedly connected with a shock-absorbing and anti-skid pad (36) at each corner.

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