Control system of single-machine-head precise rotary cutter

Abstract

The invention relates to the field of rotary cutter control. The invention relates to a control system, in particular to a single-machine-head precise rotary cutter control system. According to the control system of the single-machine-head precision rotary cutter, the mode of motion controller and bus communication is adopted, the precision and speed of the system are improved, and the single-machine-head precision rotary cutter can be compatible with high-speed and high-precision operation.

Description

Technical Field

[0001] The present invention relates to the field of rotary cutting machine control, and more specifically, to a single-head precision rotary cutting machine control system. Background Art

[0002] After copper plating on the circuit board, its surface is not flat. It is necessary to grind the surface of the circuit board first, and then electroplate the insulation layer. After the insulation layer is electroplated, the surface of the circuit board needs to be grinded again, and then copper plated again. Repeat this process until the requirements are met. At present, the main rotary cutter is used to grind the circuit board, but the control solution generally adopted by the existing rotary cutter is to use the traditional PLC+pulse control method to implement the entire solution. The spindle of the traditional PLC+pulse control method adopts analog control, and the encoder feedback is incremental, which has low accuracy and is affected by the pulse frequency. It is not compatible with high-speed and high-precision operation. Summary of the invention

[0003] The purpose of the present invention is to provide a single-head precision peeling machine control system, which adopts a motion controller + bus communication method to improve the accuracy and speed of the system, so that the single-head precision peeling machine can be compatible with high-speed and high-precision operation.

[0004] In order to achieve these purposes and other advantages according to the present invention, a control system for a single-head precision peeling machine is provided, wherein the single-head precision peeling machine comprises a cutter, a feeding mechanism, a high-speed rotating mechanism, a peeling lifting mechanism and a workpiece fixing mechanism, wherein the cutter is arranged below the high-speed rotating mechanism and is transmission-connected to the electric spindle thereof, the high-speed rotating mechanism is transmission-connected to the peeling lifting mechanism, the feeding mechanism is transmission-connected to the workpiece fixing mechanism to drive the workpiece fixing mechanism to move horizontally and linearly, and the control system comprises:

[0005] Controller;

[0006] A servo driver, which is electrically connected to the controller, wherein the feeding mechanism and the rotary cutting lifting mechanism are both driven by servo motors, and the servo motors and motor encoders of the two are electrically connected to the servo driver respectively;

[0007] The frequency converter has an input end electrically connected to the servo driver, and an output end electrically connected to the electric spindle and the electric spindle encoder of the high-speed rotating mechanism.

[0008] Furthermore, in the control system of the single-head precision peeling machine, both the feeding mechanism and the peeling lifting mechanism are provided with a grating ruler, and the grating ruler is electrically connected to the servo driver.

[0009] Furthermore, the control system of the single-head precision peeling machine also includes a touch screen, and the touch screen is electrically connected to the controller.

[0010] Furthermore, in the control system of the single-head precision peeling machine, the controller is electrically connected to the servo driver and the frequency converter through an IO module.

[0011] Furthermore, in the control system of the single-head precision peeling machine, the controller and the servo driver are connected via ETHERCAT communication.

[0012] Furthermore, in the control system of a single-head precision peeling machine, the workpiece fixing mechanism includes a base and a vacuum adsorption device, the vacuum adsorption device is arranged on the base, and the base is transmission-connected to the feeding mechanism.

[0013] Furthermore, in the control system of the single-head precision peeling machine, the height of the base is adjustable.

[0014] The beneficial effects of the present invention are:

[0015] The control system of the single-head precision peeling machine of the present invention adopts the motion controller + bus communication method to divide the program into task levels. For motion control that requires higher real-time performance, fast tasks are adopted, and for ordinary logic control, slow tasks are adopted. At the same time, the motor and electric spindle in the system adopt the encoder feedback method to timely feedback the current position of the system. At the same time, a grating ruler is also used to feedback the actual position of the machine to form a full closed-loop control, while ensuring the speed of the system.

[0016] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the single-head precision peeling machine of the present invention;

[0018] Figure 2 It is a structural diagram of the control system of the single-head precision peeling machine described in the present invention. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0020] It should be noted that, in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] like Figure 1-Figure 2 As shown, an embodiment of the present invention provides a control system for a single-head precision peeling machine, the single-head precision peeling machine comprises a cutter 1, a feeding mechanism 2, a high-speed rotating mechanism 3, a peeling lifting mechanism 4 and a workpiece fixing mechanism 5, the cutter 1 is arranged below the high-speed rotating mechanism 3 and is transmission-connected to its electric spindle, the high-speed rotating mechanism 3 is transmission-connected to the peeling lifting mechanism 4, the feeding mechanism 2 is transmission-connected to the workpiece fixing mechanism 5, so as to drive the workpiece fixing mechanism 5 to move horizontally and linearly, the control system comprises:

[0022] Controller;

[0023] A servo driver, which is electrically connected to the controller, wherein the feeding mechanism 2 and the rotary cutting lifting mechanism 4 are both driven by servo motors, and the servo motors and motor encoders of the two are electrically connected to the servo driver respectively;

[0024] The frequency converter has an input end electrically connected to the servo driver, and an output end electrically connected to the electric spindle and the electric spindle encoder of the high-speed rotating mechanism 3 respectively.

[0025] In this embodiment, when the single-head precision peeling machine is working, the product to be processed 6 is fixed on the workpiece fixing mechanism 5, the feeding mechanism 2 drives the workpiece fixing mechanism 5 to move below the cutter 1, the peeling lifting mechanism 4 drives the high-speed rotating mechanism 3 to move downward until the cutter 1 reaches the target position, and the high-speed rotating mechanism 3 starts to work and drives the cutter 1 to rotate at high speed to cut the product to be processed 6 on the workpiece fixing mechanism 5. After the processing is completed, the high-speed rotating mechanism 3 stops working, the peeling lifting mechanism 4 drives the high-speed rotating mechanism 3 to move upward to the initial position, the feeding mechanism 2 drives the workpiece fixing mechanism 5 back to the initial position, and the processed product 6 is removed to complete a processing operation. Then a new product to be processed 6 is replaced and the next processing operation is carried out. In this embodiment, the motion controller + bus communication method is used to divide the program into task levels. For motion control that requires higher real-time performance, fast tasks are used, such as the electric spindle of the peeling lifting mechanism 4. For ordinary logic control, slow tasks are used, such as the servo motors of the feeding mechanism 2 and the peeling lifting mechanism 4.

[0026] Preferably, as another embodiment of the present invention, both the feeding mechanism 2 and the rotary cutting lifting mechanism 4 are provided with a grating ruler, and the grating ruler is electrically connected to the servo driver.

[0027] In this embodiment, the motor shaft uses a grating ruler to feedback the actual mechanical position combined with a PID algorithm to form a full closed-loop control while ensuring the speed of the system.

[0028] Preferably, as another embodiment of the present invention, it further includes a touch screen, and the touch screen is electrically connected to the controller.

[0029] In this embodiment, the staff can operate through the touch screen to adjust the setting parameters of the controller.

[0030] Preferably, as another embodiment of the present invention, the controller is electrically connected to the servo drive and the frequency converter through an IO module.

[0031] Preferably, as another embodiment of the present invention, the controller and the servo driver are connected via ETHERCAT communication.

[0032] Preferably, as another embodiment of the present invention, the workpiece fixing mechanism 5 includes a base and a vacuum adsorption device, the vacuum adsorption device is arranged on the base, and the base is transmission-connected to the feeding mechanism 2.

[0033] In this embodiment, the adsorption surface of the vacuum adsorption device faces upward, and the product to be processed 6 is placed on the adsorption surface. When the vacuum adsorption device is working, a vacuum is formed to fix the product to be processed 6.

[0034] Preferably, as another embodiment of the present invention, the height of the base is adjustable.

[0035] In this embodiment, the thickness of the base needs to be set according to different products 6, so as to achieve rotary cutting of different products 6.

[0036] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the embodiments shown and described herein.

Claims

1. A control system for a single-head precision peeling machine, the single-head precision peeling machine comprising a cutter (1), a feeding mechanism (2), a high-speed rotating mechanism (3), a peeling lifting mechanism (4) and a workpiece fixing mechanism (5), the cutter (1) being arranged below the high-speed rotating mechanism (3) and being transmission-connected to its electric spindle, the high-speed rotating mechanism (3) being transmission-connected to the peeling lifting mechanism (4), the feeding mechanism (2) being transmission-connected to the workpiece fixing mechanism (5) to drive the workpiece fixing mechanism (5) to move horizontally and linearly, characterized in that: The control system comprises: Controller; A servo driver electrically connected to the controller, wherein the feeding mechanism (2) and the rotary cutting lifting mechanism (4) are both driven by servo motors, and the servo motors and motor encoders of the two are electrically connected to the servo driver respectively; The frequency converter has an input end electrically connected to the servo driver and an output end electrically connected to the electric spindle and the electric spindle encoder of the high-speed rotating mechanism (3).

2. A single-head precision peeling machine control system as claimed in claim 1, characterized in that: The feeding mechanism (2) and the rotary cutting lifting mechanism (4) are both provided with a grating ruler, and the grating ruler is electrically connected to the servo driver.

3. A single-head precision peeling machine control system as claimed in claim 1, characterized in that: It also includes a touch screen, which is electrically connected to the controller.

4. A single-head precision peeling machine control system as claimed in claim 1, characterized in that: The controller is electrically connected to the servo driver and the frequency converter through an IO module.

5. A single-head precision peeling machine control system as claimed in claim 1, characterized in that: The controller and the servo driver are connected via ETHERCAT communication.

6. A single-head precision peeling machine control system as claimed in claim 1, characterized in that: The workpiece fixing mechanism (5) comprises a base and a vacuum adsorption device, wherein the vacuum adsorption device is arranged on the base, and the base is drivingly connected to the feeding mechanism (2).

7. A single-head precision peeling machine control system as claimed in claim 6, characterized in that: The height of the base is adjustable.

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