Control method for high-frequency vibration cutting

Abstract

The invention discloses a control method for high-frequency vibration cutting. The control method is characterized by comprising the following steps that a main control system controls the intensity and frequency of current introduced into a coil in a high-frequency vibration mechanism; when current passes through the coil, a magnetic field is generated between the coil and the fixing piece. A magnetic field generated after the coil is electrified interacts with the permanent magnet mounted on the fixed part to generate push-pull force on the coil, so that high-frequency vibration of the coil and the coil holder is realized, and the cutter connected with the coil holder is driven to perform high-frequency vibration; the main control system controls the moving mechanism to drive the high-frequency vibration mechanism and the cutter to move according to a set pattern path, and meanwhile the high-frequency vibration mechanism drives the cutter to vibrate at high frequency along the Z axis to complete cutting of the cut object. According to the control method, when a cut object is cut or engraved, the high-frequency vibration mechanism is automatically controlled to be along a set pattern path according to actual requirements, and the vibration cutting position and the vibration amplitude are accurately controlled.

Description

Technical Field

[0001] The invention relates to high frequency vibration cutting, in particular to a control method for high frequency vibration cutting. Background Art

[0002] At present, in order to achieve die-cutting and cutting of thicker and tougher materials, the die-cutting machine industry technology usually adopts conventional 15000-30000 rpm high-speed vibration motors, about 250-500 times per second, and drives the eccentric mechanism through the motor to drive the engraving knife and the cutter on the cutting carriage to move up and down slightly to achieve vibration cutting, so as to achieve easier cutting of thicker and more flexible materials. However, the vibration amplitude of this mechanism is fixed and the up and down vibration amplitude cannot be adjusted. In addition, due to the use of eccentric cam mechanisms, the vibration of the carriage assembly greatly affects the cutting quality. At the same time, the entire vibration assembly design must be matched to manually adjust or servo adjust the up and down height of the entire vibration assembly to cut the depth of the material. The structure is very complex and the cost is very high. Some high-frequency cutting mechanisms also use ultrasonic cutting, and ultrasonic cutting also has the problems of complex structure and high cost. For this reason, a control method for high-frequency vibration cutting is proposed. Summary of the invention

[0003] The purpose of the present invention is to solve the above problems and to provide a control method for high-frequency vibration cutting.

[0004] In order to achieve the above object, the present invention provides the following technical solution: a control method for high-frequency vibration cutting, characterized in that the control method is as follows: 1) The main control system controls the intensity and frequency of the current flowing into the coil in the high-frequency vibration mechanism; 2) When current passes through the coil, a magnetic field is generated between the coil and the fixed part; 3) The magnetic field generated by the coil after power is supplied interacts with the permanent magnet installed on the fixing part, generating push and pull forces on the coil, realizing high-frequency vibration of the coil and the coil seat, and driving the cutter connected to the coil seat to vibrate at high frequency; 4) The main control system controls the moving mechanism to drive the high-frequency vibration mechanism and the cutter to move according to the set graphic path. At the same time, the high-frequency vibration mechanism drives the cutter to vibrate at high frequency along the Z axis to complete the cutting of the object to be cut.

[0005] Further preferably, the high-frequency vibration frequency and cutting force of the cutter are adjusted by adjusting the intensity and frequency of the input current through the main control module.

[0006] Further preferably, when the high-frequency vibration mechanism drives the cutter to perform high-frequency vibration cutting, the position of the limiter is adjusted according to the cutting thickness of the object to be cut, so as to adjust the amplitude of the high-frequency vibration action of the cutter driven by the high-frequency vibration mechanism.

[0007] Further preferably, the high-frequency vibration mechanism in the above-mentioned control method includes a connecting plate connected to a moving mechanism in the cutting equipment for driving the cutter to move, a fixing part installed on the connecting plate, a permanent magnet connected to the fixing part, a coil electrically connected to a power supply, a coil seat for installing the coil, and a limiting part for limiting the vibration amplitude of the high-frequency vibration mechanism, thereby limiting the amplitude of the cutter moving with the high-frequency vibration mechanism.

[0008] Further preferably, the fixing member is a magnetic conductor connected to the permanent magnet.

[0009] More preferably, it also includes a tool base connected to the coil seat for mounting a cutter.

[0010] Beneficial effects of the present invention: Through the control method, when cutting or engraving the object to be cut, the high-frequency vibration mechanism is automatically controlled according to actual needs to follow the set graphic path, and the position and vibration amplitude of the vibration cutting are accurately controlled; During the cutting process, the high-frequency vibration frequency and cutting force of the cutter are controlled by controlling the intensity and frequency of the input current. During the implementation process, real-time adjustments can be made to suit different working conditions. The vibration amplitude of the high-frequency vibration mechanism is controlled by setting a limiting member. When a mechanical limiting member is used, the vibration amplitude of the high-frequency vibration mechanism can be adjusted by adjusting the position of the mechanical limiting member. The limiting parts can also be controlled by limiting devices such as gratings, photoelectric or infrared sensors. The high-frequency vibration mechanism and the upper and lower positions of the cutter can be controlled by the grating, and the cutting depth of objects of different thicknesses can be easily achieved through CNC.

[0011] Another technical effect of the present invention is that, because of its simple structure and the ability to achieve high-frequency cutting, it can solve the problem of complex structure and high cost of vibration cutting and ultrasonic high-frequency cutting equipment that uses an eccentric mechanism driven by a motor to drive the engraving knife and cutting knife on the cutting carriage to move up and down slightly. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a structural schematic diagram when the present invention is used.

[0013] Legend: 1. Connecting plate; 2. Coil seat; 3. Coil; 4. Permanent magnet; 5. Fixing piece; 6. Tool base; 7. Cutter; 8. Limiting piece. DETAILED DESCRIPTION

[0014] Next, we will further illustrate the control method of high-frequency vibration cutting according to the present invention with reference to the accompanying drawings.

[0015] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0016] In the present invention, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. should be understood in a broad sense; for example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] See also Figure 1-Figure 2 As shown in, a control method for high-frequency vibration cutting is characterized in that the control method is as follows: The vibration amplitude of the high-frequency vibration cutting mechanism is adjusted according to the cutting depth of the object to be cut. When a mechanical limiter is used, the limiter 8 includes a high limiter and a low limiter. The vibration amplitude of the high-frequency vibration mechanism is limited by adjusting the positions of the high limiter and the low limiter, and the position of the limiter can be adjusted in high and low positions according to the thickness of the object to be cut. In addition, when a grating limiter is used, the high position and the low position are set in the main control system to limit the vibration amplitude of the high-frequency vibration mechanism. According to the required high-frequency vibration frequency and cutting force, the main control system controls the intensity and frequency of the corresponding current passed into the coil 3 in the high-frequency vibration mechanism; After the coil 3 is energized, when the current passes through the coil 3, a magnetic field is generated between the coil 3 and the fixing member 5; The magnetic field generated by the coil 3 after being energized interacts with the permanent magnet 4 mounted on the fixing member 5, generating a push-pull force on the coil 3, achieving high-frequency vibration of the coil 3 and the coil holder 2, and driving the cutter 7 connected to the coil holder 2 to vibrate at a high frequency; The cutter 7 vibrates at a high frequency within a limited amplitude. The main control system controls the moving mechanism to drive the high-frequency vibration mechanism and the cutter 7 to move according to the set graphic path. At the same time, the high-frequency vibration mechanism drives the cutter 7 to vibrate at high frequency along the Z axis to complete the cutting or engraving of the object to be cut; The moving mechanism drives the high-frequency vibration mechanism to move along the X-axis and the Y-axis. The moving mechanism may be a servo transmission mechanism arranged on the gantry or the crossbeam.

[0018] In one embodiment, the high-frequency vibration mechanism comprises a connecting plate 1 connected to a moving mechanism in a cutting device for driving a cutter to move, a fixing member 5 mounted on the connecting plate 1, a permanent magnet 4 connected to the fixing member 5, a coil 3 electrically connected to a power source, a coil seat 2 for mounting the coil 3, and a limiting member 8 for limiting the vibration amplitude of the high-frequency vibration mechanism, thereby limiting the amplitude of the cutter moving along with the high-frequency vibration mechanism; The limiting member can be a purely mechanical limiting component such as a limiting bolt, a limiting plate, a limiting block, or any one of electronic limiting sensors such as a grating, a photoelectric sensor, an infrared sensor, or the like.

[0019] In one embodiment, the fixing member 5 is a magnetic conductor connected to the permanent magnet 4 .

[0020] In one embodiment, a cutter base 6 connected to the coil base 2 for mounting a cutter 7 is also included. In actual use, the cutter 7 can also be directly mounted on the coil base 2 .

[0021] The patent of the present invention uses the above method and the mechanism for generating high-frequency vibration, thereby replacing the motor-driven eccentric mechanism to drive the engraving knife and the cutting knife on the cutting carriage to move up and down slightly to realize vibration cutting and ultrasonic high-frequency cutting equipment, thereby simplifying the structure of the cutting mechanism and reducing the production cost.

[0022] The protection scope of the present invention is not limited to the above embodiments and their variations. Conventional modifications and replacements made by those skilled in the art based on the contents of this embodiment all fall within the protection scope of the present invention.

Claims

1. A control method for high-frequency vibration cutting, characterized in that The control method is as follows: 1) The main control system controls the intensity and frequency of the current flowing into the coil in the high-frequency vibration mechanism; 2) When current passes through the coil, a magnetic field is generated between the coil and the fixed part; 3) The magnetic field generated by the coil after power is supplied interacts with the permanent magnet installed on the fixing part, generating push and pull forces on the coil, realizing high-frequency vibration of the coil and the coil seat, and driving the cutter connected to the coil seat to vibrate at high frequency; 4) The main control system controls the moving mechanism to drive the high-frequency vibration mechanism and the cutter to move according to the set graphic path. At the same time, the high-frequency vibration mechanism drives the cutter to vibrate at high frequency along the Z axis to complete the cutting or engraving of the object to be cut.

2. A control method for high frequency vibration cutting according to claim 1, characterized in that: The main control module adjusts the intensity and frequency of the input current to adjust the high-frequency vibration frequency and cutting force of the cutter.

3. A control method for high frequency vibration cutting according to claim 1, characterized in that: When the high-frequency vibration mechanism drives the cutter to perform high-frequency vibration cutting, the position of the limiter is adjusted according to the cutting thickness of the object to be cut, and the high-frequency vibration action amplitude of the cutter driven by the high-frequency vibration mechanism is adjusted.

4. A control method for high frequency vibration cutting according to claim 1, characterized in that: The high-frequency vibration mechanism in the above-mentioned control method comprises a connecting plate (1) connected to a moving mechanism in a cutting device for driving a cutter to move, a fixing member (5) mounted on the connecting plate (1), a permanent magnet (4) connected to the fixing member (5), a coil (3) electrically connected to a power source, a coil seat (2) for mounting the coil (3), and a limiting member (8) for limiting the vibration amplitude of the high-frequency vibration mechanism, thereby limiting the amplitude of the cutter moving along with the high-frequency vibration mechanism.

5. A control method for high frequency vibration cutting according to claim 4, characterized in that: The fixing member (5) is a magnetic conductor connected to the permanent magnet (4).

6. A control method for high frequency vibration cutting according to claim 4, characterized in that: It also includes a cutter base (6) connected to the coil base (2) and used for mounting a cutter (7).

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