High-precision metal fiber vibration cutting mechanism

Abstract

The invention relates to the technical field of metal fiber cutting, in particular to a high-precision metal fiber vibration cutting mechanism which comprises a bottom plate and a blade, and a motor mounting seat and a blade mounting seat capable of moving vertically at the upper end of the bottom plate are fixedly arranged at the upper end of the bottom plate; a piezoelectric ceramic motor is installed at the end, close to the blade installation base, of the motor installation base, piezoelectric ceramic motor installation blocks are arranged at the two ends of the piezoelectric ceramic motor, one piezoelectric ceramic motor installation block is fixedly connected with the end face of the motor installation base, and the other piezoelectric ceramic motor installation block is fixedly connected with the end face of the blade installation base. According to the metal short fiber cutting machine, the blade is driven to vibrate through high-frequency vibration of the piezoelectric ceramic motor, in the vibration process, a metal rod is rapidly cut, metal short fibers with small and micro diameters are produced, the machining efficiency is high, the sizes of the metal fibers are uniform, and the machining precision is high.

Description

Technical Field

[0001] The invention relates to the technical field of metal fiber cutting, and in particular to a high-precision metal fiber vibration cutting mechanism. Background Art

[0002] Metal fibers have electrical conductivity, thermal conductivity, and spinnability. They are usually used in aviation, nuclear industry, and military fields. However, metal fibers are relatively difficult to produce, especially short-sized and micro-diameter metal fibers.

[0003] There are two production methods for making metal chopped fibers:

[0004] 1. Use the drawing method to draw the metal wire with a larger wire diameter into a metal wire with a smaller wire diameter, and then cut it into the required length with a cutting machine; the drawing method requires many processes, and the wire must be annealed and other heat treatments, and then it must be drawn through multiple eye masks before the wire can be stretched to a wire diameter of less than 15 microns, which has a high manufacturing cost; at the same time, due to the inherent process, the copper alloy of the drawn fiber may affect the subsequent application performance;

[0005] 2. Use a lathe to perform intermittent cutting using the self-excited vibration of the turning tool to directly cut out the metal wire of the required length and diameter; Turning uses the self-excited vibration of the turning tool, but requires appropriate processing parameters (cutting line speed and feed amount) to trigger the self-excited vibration of the turning tool, and the frequency of the self-excited vibration is not high (below 2KHz), the vibration frequency is unstable, and the amplitude is uncontrollable. It is very difficult to cut metal wires with a wire diameter of less than 15 microns, and the production efficiency is also very low.

[0006] In summary, in order to solve the technical problem raised in this article, the present invention proposes a high-precision metal fiber vibration cutting mechanism. Summary of the invention

[0007] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a high-precision metal fiber vibration cutting mechanism.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A high-precision metal fiber vibration cutting mechanism comprises a base plate and a blade, wherein a motor mounting seat and a blade mounting seat which can move in a vertical direction at the upper end of the base plate are fixedly arranged on the upper end of the base plate, a piezoelectric ceramic motor is installed on one end of the motor mounting seat close to the blade mounting seat, and piezoelectric ceramic motor mounting blocks are arranged at both ends of the piezoelectric ceramic motor, wherein one piezoelectric ceramic motor mounting block is fixedly connected to the end face of the motor mounting seat, and the other piezoelectric ceramic motor mounting block is fixedly connected to the end face of the blade mounting seat, a blade mounting groove is arranged on the side of the blade mounting seat away from the piezoelectric ceramic motor, a handle portion of the blade is inserted into the inside of the blade mounting groove, and the blade mounting seat cooperates with a blade clamping block to fix the blade, and the blade edge is arranged horizontally.

[0010] Preferably, a piezoelectric ceramic motor traction mechanism is provided between the motor mounting seat and the blade mounting seat, and the piezoelectric ceramic motor traction mechanism can limit the extension of the piezoelectric ceramic motor in the length direction.

[0011] Preferably, the piezoelectric ceramic motor traction mechanism includes a traction block and a traction spring, and the traction blocks are divided into two groups, one group is fixedly connected to the piezoelectric ceramic motor mounting block on the motor mounting seat, and the other group is fixedly connected to the piezoelectric ceramic motor mounting block on the blade mounting seat, and the two groups of traction blocks are connected by a traction spring.

[0012] Preferably, the number of the traction springs is 2-8, and the traction springs are parallel to the piezoelectric ceramic motor.

[0013] Preferably, the axis of the long axis of the blade coincides with the axis of the long axis of the piezoelectric ceramic motor.

[0014] Preferably, a horizontally arranged blade mounting seat base plate is fixedly provided at the lower end of the blade mounting seat, a blade mounting seat fastening screw is connected between the blade mounting seat base plate and the base plate, and a gap is provided between the blade mounting seat base plate and the base plate, through which the blade mounting seat can move vertically at the upper end of the base plate.

[0015] Preferably, a through hole is provided on the motor mounting seat, and the motor mounting seat is fixedly connected to the base via a motor mounting seat fastening screw.

[0016] Preferably, the blade clamping block is T-shaped, the lower end of the blade clamping block abuts against the end face of the blade, and the upper end of the blade clamping block is fixedly connected to the blade mounting seat via a blade clamping screw.

[0017] The beneficial effects of the present invention are:

[0018] 1. In the present invention, the high-frequency vibration of the piezoelectric ceramic motor drives the blade to vibrate. During the vibration process, the metal rod is quickly cut to produce small-diameter metal short fibers. The processing efficiency is high, and the sizes of the metal fibers are uniform and the processing accuracy is high.

[0019] 2. In the present invention, when the piezoelectric ceramic motor vibrates at high frequency, it pushes the blade to vibrate back and forth. Since there is a gap between the bottom plate of the blade mounting seat and the bottom plate, the blade mounting seat can move vertically at the upper end of the bottom plate through the gap. Finally, the vibration generated by the piezoelectric ceramic motor is amplified by the blade mounting seat to ensure that the metal wire on the metal rod can be cut off each time the blade moves forward.

[0020] 3. In the present invention, a piezoelectric ceramic motor traction mechanism, namely a traction block and a traction spring, is arranged between the motor mounting seat and the blade mounting seat. The piezoelectric ceramic motor is pulled by the traction spring to prevent the piezoelectric ceramic motor from excessively stretching in the axial direction and causing damage to the piezoelectric ceramic motor. On the other hand, under the action of the traction spring, the direction of the output force of the piezoelectric ceramic motor is more concentrated, thereby improving the processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the three-dimensional structure of a high-precision metal fiber vibration cutting mechanism proposed by the present invention;

[0022] Figure 2 This is a schematic diagram of the main structure of a high-precision metal fiber vibration cutting mechanism proposed by the present invention.

[0023] In the figure: 1 base plate, 2 motor mounting seat, 3 motor mounting seat fastening screws, 4 piezoelectric ceramic motor, 5 piezoelectric ceramic motor mounting block, 6 traction block, 7 traction spring, 8 blade mounting seat, 9 blade clamping block, 10 blade, 11 blade clamping screw, 12 blade mounting seat base plate, 13 blade mounting seat fastening screws, 14 metal rod. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] Reference Figure 1-2A high-precision metal fiber vibration cutting mechanism comprises a base plate 1 and a blade 10. A motor mounting seat 2 and a blade mounting seat 8 which can move vertically at the upper end of the base plate 1 are fixedly arranged on the upper end of the base plate 1. A piezoelectric ceramic motor 4 is installed at one end of the motor mounting seat 2 close to the blade mounting seat 8. Piezoelectric ceramic motor mounting blocks 5 are arranged at both ends of the piezoelectric ceramic motor 4, one of which is fixedly connected to the end face of the motor mounting seat 2, and the other is fixedly connected to the end face of the blade mounting seat 8. A blade mounting groove is arranged on the side of the blade mounting seat 8 away from the piezoelectric ceramic motor 4, the handle of the blade 10 is inserted into the inside of the blade mounting groove, and the blade mounting seat 8 cooperates with the blade clamping block 9 to fix the blade 10, and the cutting edge of the blade 10 is arranged horizontally.

[0026] A piezoelectric ceramic motor traction mechanism is provided between the motor mounting seat 2 and the blade mounting seat 8 , and the piezoelectric ceramic motor traction mechanism can limit the extension of the piezoelectric ceramic motor 4 in the length direction.

[0027] The piezoelectric ceramic motor traction mechanism includes a traction block 6 and a traction spring 7. The traction block 6 is divided into two groups, one group is fixedly connected to the piezoelectric ceramic motor mounting block 5 on the motor mounting seat 2, and the other group is fixedly connected to the piezoelectric ceramic motor mounting block 5 on the blade mounting seat 8. The two groups of traction blocks 6 are connected by a traction spring 7.

[0028] The number of the traction springs 7 is 2-8, and the traction springs 7 are parallel to the piezoelectric ceramic motor 4. As shown in the figure, in this embodiment, the number of the traction springs is 2.

[0029] The axis of the long axis of the blade 10 coincides with the axis of the long axis of the piezoelectric ceramic motor 4. The coincidence of the axes ensures high processing accuracy and protects the blade 10 to reduce radial stress on the blade.

[0030] A horizontally arranged blade mounting seat base plate 12 is fixedly provided at the lower end of the blade mounting seat 8, a blade mounting seat fastening screw 13 is connected between the blade mounting seat base plate 12 and the base plate 1, and a gap exists between the blade mounting seat base plate 12 and the base plate 1, through which the blade mounting seat 8 can move vertically at the upper end of the base plate 1.

[0031] The motor mounting seat 2 is provided with a through hole, and the motor mounting seat 2 is fixedly connected to the base 1 via the motor mounting seat fastening screws 3 .

[0032] The blade clamping block 9 is T-shaped, the lower end of the blade clamping block 9 abuts against the end surface of the blade 10 , and the upper end of the blade clamping block 9 is fixedly connected to the blade mounting seat 8 via a blade clamping screw 11 .

[0033] When the device is in use, the base plate 1 is fixed, and the metal rod 14 is fixed, the position of the metal rod 14 is adjusted so that the blade 10 contacts the metal rod 14, the piezoelectric ceramic motor 4 is started, and then the metal rod 14 is driven to rotate at high speed through the machine tool to achieve rapid cutting of metal fibers.

[0034] In the present invention, the blade 10 is driven to vibrate by the high-frequency vibration of the piezoelectric ceramic motor 4. During the vibration process, the metal rod 14 is quickly cut to produce small-diameter metal short fibers. The processing efficiency is high, and the sizes of the metal fibers are uniform and the processing accuracy is high.

[0035] In the present invention, when the piezoelectric ceramic motor 14 vibrates at high frequency, it pushes the blade 10 to vibrate back and forth. Since there is a gap between the blade mounting seat bottom plate 12 and the bottom plate 1, the blade mounting seat 8 can move vertically at the upper end of the bottom plate 1 through the gap. Finally, the vibration generated by the piezoelectric ceramic motor is amplified by the blade mounting seat 8 to ensure that the blade 10 can cut the metal wire on the metal rod each time it moves forward.

[0036] In the present invention, a piezoelectric ceramic motor traction mechanism, namely a traction block 6 and a traction spring 7, is arranged between the motor mounting seat 2 and the blade mounting seat 8. The piezoelectric ceramic motor 4 is pulled by the traction spring 7 to prevent the piezoelectric ceramic motor 4 from excessively stretching in the axial direction and causing damage to the piezoelectric ceramic motor 4. On the other hand, under the action of the traction spring 7, the direction of the output force of the piezoelectric ceramic motor is more concentrated, thereby improving the processing accuracy.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-precision metal fiber vibration cutting mechanism, comprising a base plate (1) and a blade (10), characterized in that: A motor mounting seat (2) and a blade mounting seat (8) capable of vertical movement at the upper end of the base plate (1) are fixedly provided at the upper end of the base plate (1); a piezoelectric ceramic motor (4) is installed at one end of the motor mounting seat (2) close to the blade mounting seat (8); piezoelectric ceramic motor mounting blocks (5) are provided at both ends of the piezoelectric ceramic motor (4); one piezoelectric ceramic motor mounting block (5) is fixedly connected to the end face of the motor mounting seat (2); and the other piezoelectric ceramic motor mounting block (5) is fixedly connected to the end face of the blade mounting seat (8); a blade mounting groove is provided on the side of the blade mounting seat (8) away from the piezoelectric ceramic motor (4); a handle portion of the blade (10) is inserted into the inside of the blade mounting groove; the blade mounting seat (8) cooperates with a blade clamping block (9) to fix the blade (10); and the blade edge of the blade (10) is arranged horizontally.

2. A high-precision metal fiber vibration cutting mechanism according to claim 1, characterized in that: A piezoelectric ceramic motor traction mechanism is provided between the motor mounting seat (2) and the blade mounting seat (8), and the piezoelectric ceramic motor traction mechanism can limit the extension of the piezoelectric ceramic motor (4) in the length direction.

3. A high-precision metal fiber vibration cutting mechanism according to claim 2, characterized in that: The piezoelectric ceramic motor traction mechanism comprises a traction block (6) and a traction spring (7), wherein the traction block (6) is divided into two groups, one group being fixedly connected to the piezoelectric ceramic motor mounting block (5) on the motor mounting seat (2), and the other group being fixedly connected to the piezoelectric ceramic motor mounting block (5) on the blade mounting seat (8), and the two groups of traction blocks (6) are connected via the traction spring (7).

4. A high-precision metal fiber vibration cutting mechanism according to claim 3, characterized in that: The number of the traction springs (7) is 2-8, and the traction springs (7) are parallel to the piezoelectric ceramic motor (4).

5. A high-precision metal fiber vibration cutting mechanism according to claim 1 or 4, characterized in that: The axis of the long axis of the blade (10) coincides with the axis of the long axis of the piezoelectric ceramic motor (4).

6. A high-precision metal fiber vibration cutting mechanism according to claim 5, characterized in that: A horizontally arranged blade mounting seat base plate (12) is fixedly arranged at the lower end of the blade mounting seat (8); a blade mounting seat fastening screw (13) is connected between the blade mounting seat base plate (12) and the base plate (1); and a gap exists between the blade mounting seat base plate (12) and the base plate (1), so that the blade mounting seat (8) can move vertically at the upper end of the base plate (1).

7. A high-precision metal fiber vibration cutting mechanism according to claim 6, characterized in that: The motor mounting seat (2) is provided with a through hole, and the motor mounting seat (2) is fixedly connected to the base (1) via a motor mounting seat fastening screw (3).

8. The high-precision metal fiber vibration cutting mechanism according to claim 7, characterized in that: The blade clamping block (9) is T-shaped, the lower end of the blade clamping block (9) abuts against the end surface of the blade (10), and the upper end of the blade clamping block (9) is fixedly connected to the blade mounting seat (8) via a blade clamping screw (11).

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