Double-machine-head precise rotary cutter and control system

Abstract

The invention relates to the field of rotary cutter control. The invention relates to a rotary cutter, in particular to a double-machine-head precise rotary cutter and a control system. According to the double-machine-head precise rotary cutter and the control system, the control system adopts the mode of motion controller and bus communication, the precision and speed of the system are improved, and the single-machine-head precise 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 double-head precision rotary cutting machine and a 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 dual-head precision peeling machine and a control system. The control system 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 double-head precision peeling machine is provided, including a rough cutting knife, a fine cutting knife, a first high-speed rotating mechanism, a second high-speed rotating mechanism, a horizontal driving mechanism, a feeding mechanism, a first peeling lifting mechanism, a second peeling lifting mechanism and a workpiece fixing mechanism. The feeding mechanism is connected in transmission with the workpiece fixing mechanism to drive the workpiece fixing mechanism to move horizontally and linearly between the loading position and the processing position. The rough cutting knife is arranged below the first high-speed rotating mechanism and is connected in transmission with its electric spindle. The fine cutting knife is arranged below the second high-speed rotating mechanism and is connected in transmission with its electric spindle. The first high-speed rotating mechanism and the second high-speed rotating mechanism are respectively connected in transmission with the first peeling lifting mechanism and the second peeling lifting mechanism. The first peeling lifting mechanism and the second peeling lifting mechanism are respectively connected in transmission with the horizontal driving mechanism. The horizontal driving mechanism drives the rough cutting knife and the fine cutting knife to move one of them to above the processing position.

[0005] The present invention also provides a control system for the above-mentioned dual-head precision peeling machine, the control system comprising:

[0006] Controller;

[0007] A servo driver electrically connected to the controller, wherein the feeding mechanism, the first peeling and lifting mechanism, and the second peeling and lifting mechanism are all driven by servo motors, and the servo motors and motor encoders thereof are electrically connected to the servo driver respectively;

[0008] 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 first high-speed rotating mechanism and the second high-speed rotating mechanism respectively.

[0009] Furthermore, in the control system of the single-head precision peeling machine, the feeding mechanism, the first peeling lifting mechanism and the second peeling lifting mechanism are all provided with a grating ruler, and the grating ruler is electrically connected to the servo driver.

[0010] 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.

[0011] 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.

[0012] Furthermore, in the control system of the single-head precision peeling machine, the controller and the servo driver are connected via ETHERCAT communication.

[0013] 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.

[0014] Furthermore, in the control system of the single-head precision peeling machine, the height of the base is adjustable.

[0015] The beneficial effects of the present invention are:

[0016] The control system of the dual-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.

[0017] 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

[0018] Figure 1 It is a structural schematic diagram of the double-head precision peeling machine of the present invention;

[0019] Figure 2 It is a structural diagram of the control system described in the present invention. DETAILED DESCRIPTION

[0020] 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.

[0021] 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.

[0022] like Figure 1 As shown, an embodiment of the present invention provides a double-head precision peeling machine, including a roughing knife 1, a fine cutting knife 2, a first high-speed rotating mechanism 3, a second high-speed rotating mechanism 4, a horizontal driving mechanism 5, a feeding mechanism 6, a first peeling lifting mechanism 7, a second peeling lifting mechanism 8, and a workpiece fixing mechanism 9, wherein the feeding mechanism 6 is connected in transmission with the workpiece fixing mechanism 9 to drive the workpiece fixing mechanism 9 to move horizontally and linearly between the loading position and the processing position, the roughing knife 1 is arranged below the first high-speed rotating mechanism 3 and is connected in transmission with its electric spindle, the fine cutting knife 2 is arranged below the second high-speed rotating mechanism 4 and is connected in transmission with its electric spindle, the first high-speed rotating mechanism 3 and the second high-speed rotating mechanism 4 are respectively connected in transmission with the first peeling lifting mechanism 7 and the second peeling lifting mechanism 8, the first peeling lifting mechanism 7 and the second peeling lifting mechanism 8 are respectively connected in transmission with the horizontal driving mechanism 5, and the horizontal driving mechanism 5 drives the roughing knife 1 and the fine cutting knife 2 to move one of them to the top of the processing position.

[0023] In this embodiment, when the double-head precision peeling machine is working, the workpiece fixing mechanism 9 moves to the loading position, and the product 10 to be processed is fixed on the workpiece fixing mechanism 9, and the feeding mechanism 6 drives the workpiece fixing mechanism 9 to move below the processing position; the horizontal driving mechanism 5 drives the first high-speed rotating mechanism 3 and the first peeling lifting mechanism 7 to move above the processing position, and the first peeling lifting mechanism 7 drives the first high-speed rotating mechanism 3 to move downward until the cutter reaches the target position, and the first high-speed rotating mechanism 3 starts to work and drives the rough cutting knife 1 to rotate at high speed to perform rough cutting processing on the product 10 to be processed on the workpiece fixing mechanism 9. After the processing is completed, the first high-speed rotating mechanism 3 stops working, and the first rotary cutting lifting mechanism 7 drives the first high-speed rotating mechanism 3 to move upward to the initial position; the horizontal driving mechanism 5 drives the first high-speed rotating mechanism 3 and the first rotary cutting lifting mechanism 7 away from the processing position, and drives the second high-speed rotating mechanism 4 and the second rotary cutting lifting mechanism 8 to move above the processing position, and the second rotary cutting lifting mechanism 8 drives the second high-speed rotating mechanism 4 to move downward until the fine cutting knife 2 reaches the target position, and the second high-speed rotating mechanism 4 starts to work and drives the fine cutting knife 2 to rotate at high speed, and performs fine cutting processing on the product to be processed 10 on the workpiece fixing mechanism 9. After the fine cutting processing is completed, the feeding mechanism 6 drives the workpiece fixing mechanism 9 back to the loading position, removes the processed product 10, and completes a processing operation. Then replace the new product to be processed 10 and carry out the next processing operation.

[0024] The present invention also provides a control system for the above-mentioned double-head precision peeling machine, such as Figure 2 As shown, the control system includes:

[0025] Controller;

[0026] A servo driver, which is electrically connected to the controller, wherein the feeding mechanism 6, the first peeling and lifting mechanism 7 and the second peeling and lifting mechanism 8 are all driven by servo motors, and the servo motors and motor encoders thereof are electrically connected to the servo driver respectively;

[0027] The frequency converter has an input end electrically connected to the servo driver, and an output end electrically connected to the electric spindles and the electric spindle encoders of the first high-speed rotating mechanism 3 and the second high-speed rotating mechanism 4, respectively.

[0028] 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 rotary cutting lifting mechanism. For ordinary logic control, slow tasks are used, such as the servo motor of the feeding mechanism 6 and the rotary cutting lifting mechanism.

[0029] Preferably, as another embodiment of the present invention, in the control system of a single-head precision peeling machine, the feeding mechanism 6, the first peeling lifting mechanism 7 and the second peeling lifting mechanism 8 are all provided with a grating ruler, and the grating ruler is electrically connected to the servo drive.

[0030] 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.

[0031] Preferably, as another embodiment of the present invention, it further includes a touch screen, and the touch screen is electrically connected to the controller.

[0032] In this embodiment, the staff can operate through the touch screen to adjust the setting parameters of the controller.

[0033] 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.

[0034] Preferably, as another embodiment of the present invention, the controller and the servo driver are connected via ETHERCAT communication.

[0035] Preferably, as another embodiment of the present invention, the workpiece fixing mechanism 9 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 6 .

[0036] In this embodiment, the adsorption surface of the vacuum adsorption device faces upward, and the product to be processed 10 is placed on the adsorption surface. When the vacuum adsorption device is working, a vacuum is formed to fix the product to be processed 10.

[0037] Preferably, as another embodiment of the present invention, the height of the base is adjustable.

[0038] In this embodiment, the thickness of the base needs to be set according to different products 10 , so as to achieve rotary cutting of different products 106 .

[0039] 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 double-head precision peeling machine, characterized in that: The invention comprises a rough cutting knife (1), a fine cutting knife (2), a first high-speed rotating mechanism (3), a second high-speed rotating mechanism (4), a horizontal driving mechanism (5), a feeding mechanism (6), a first rotary cutting lifting mechanism (7), a second rotary cutting lifting mechanism (8) and a workpiece fixing mechanism (9), wherein the feeding mechanism (6) is connected in a transmission manner to the workpiece fixing mechanism (9) so as to drive the workpiece fixing mechanism (9) to move horizontally and linearly between a loading position and a processing position, and the rough cutting knife (1) is arranged below the first high-speed rotating mechanism (3) and is connected in a transmission manner to the electric spindle thereof. The fine cutting knife (2) is arranged below the second high-speed rotating mechanism (4) and is connected to the electric spindle thereof by transmission; the first high-speed rotating mechanism (3) and the second high-speed rotating mechanism (4) are connected to the first rotary cutting lifting mechanism (7) and the second rotary cutting lifting mechanism (8) by transmission respectively; the first rotary cutting lifting mechanism (7) and the second rotary cutting lifting mechanism (8) are connected to the horizontal driving mechanism (5) by transmission respectively; the horizontal driving mechanism (5) drives the rough cutting knife (1) and the fine cutting knife (2) to move one of them to the top of the processing position.

2. A control system for a double-head precision peeling machine as claimed in claim 1, characterized in that: The control system comprises: Controller; A servo driver electrically connected to the controller, wherein the feeding mechanism (6), the first peeling and lifting mechanism (7) and the second peeling and lifting mechanism (8) are all driven by servo motors, and the servo motors and motor encoders 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 first high-speed rotating mechanism (3) and the second high-speed rotating mechanism (4).

3. A control system for a double-head precision peeling machine as claimed in claim 2, characterized in that: The feeding mechanism (6), the first rotary cutting lifting mechanism (7) and the second rotary cutting lifting mechanism (8) are all provided with a grating ruler, and the grating ruler is electrically connected to the servo driver.

4. A control system for a double-head precision peeling machine as claimed in claim 2, characterized in that: It also includes a touch screen, which is electrically connected to the controller.

5. The control system of a double-head precision peeling machine as claimed in claim 2, characterized in that: The controller is electrically connected to the servo driver and the frequency converter through an IO module.

6. A control system for a double-head precision peeling machine as claimed in claim 2, characterized in that: The controller and the servo driver are connected via ETHERCAT communication.

7. A control system for a double-head precision peeling machine as claimed in claim 2, characterized in that: The workpiece fixing mechanism (9) comprises a base and a vacuum adsorption device, wherein the vacuum adsorption device is arranged on the base, and the base is transmission-connected to the feeding mechanism (6).

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

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