TWI705860B - Ultrasonic spade processing device and its vibration unit - Google Patents

Abstract

An ultrasonic shoveling processing device, which includes a housing with an accommodating space in front of which an electrical connector is connected at an appropriate position; a vibration unit, which is installed in the accommodating space, and includes A plurality of piezoelectric sheets and a conductive sheet group having at least one first conductive sheet and at least one second conductive sheet, the conductive sheet group is used to form a parallel configuration of the piezoelectric sheets, and the piezoelectric sheets Adjacent to a telescopic element, another connecting element passes through the telescopic element and the piezoelectric sheets and is connected to an amplitude rod; the electrical connector electrically connects the at least one first conductive sheet and the at least one second conductive sheet Sheets; wherein a pair of grooves are provided on an upper or lower portion of the abutting surface of two adjacent piezoelectric sheets of the same pole, so that the piezoelectric sheets are simultaneously formed under the action of the high-frequency voltage provided by the electrical connector The axial high-frequency vibration and the deformation caused by the existence of the grooves generate radial deflection vibration to form an elliptical movement path in a counter or clockwise direction.

Description

Ultrasonic spade processing device and its vibration unit

This case is related to a shoveling processing device, especially an ultrasonic shoveling processing device. This case further provides a vibration unit used in an ultrasonic processing device.

According to the conventional shoveling process, the workpiece is shoveled manually. It can be divided into two types: manual shoveling and manual semi-automatic shoveling. The manual shoveling method is mainly based on two shoveling methods. The force shovel method is mainly to hold the handle of the shovel knife against the waist, and use the half squat to stand and move forward to make the shovel knife scrape on the workpiece; the second is the arm shovel method, which is the handle of the shovel Lean on the arm and use the instant force to scrape the scraper on the workpiece.

The manual semi-automatic shovel is to carry the semi-automatic shovel machine on your shoulders, and after starting the motor, the shovel head will produce rapid back and forth movement, and then produce scraping on the workpiece, so as to shovel out the micro The pits are used to store lubricating oil in these tiny pits, thereby reducing the wear between the tracks and providing a high-precision and high-load effect.

However, although the aforementioned manual shoveling or semi-automatic shoveling method can produce pits on the workpiece, there are manual shoveling methods, which require a person to hold a shovel knife or carry a shoveling machine to perform shoveling. , It is necessary to adjust the position, depth, size of the shovel flower by manpower, etc. It needs to rely on long-term accumulation of experience, and is affected by the product and the processing environment. It must be bent and half-squatted for a long time for processing. Therefore, in operation, the posture is quite uncomfortable, and the manual shoveling technique is not only difficult to learn, but also laborious and time-consuming, making it difficult to develop talents. The manually clamped semi-automatic spade machine itself is quite cumbersome and requires quite good technology to operate, and needs to be improved.

In recent years, because the multi-axis machine tool has several more rotating shafts than the general three-linear-axis machine tool, by controlling the action of the rotating shaft, not only can the structure of the more complex geometric parts be manufactured, but also the processing accuracy can be better. , That is, taking a five-axis machine tool as an example, it has three linear axes (X, Y, Z) and two rotation axes (A, C), of which the rotation axis (A) rotates around the X axis, also known as swing Axis, and the rotary axis (C) rotates around the Z axis. The position and configuration of the two rotary axes and three linear axes relative to the spindle and the processing platform can produce different models and processing methods. Therefore, the relevant industry The machine tool is combined with a shoveling device, and has a shoveling processing function. As shown in FIG. 1, it shows a schematic diagram of using a multi-axis processing machine, such as a five-axis processing machine, to attach a conventional spade device and perform mirror spade processing on a workpiece 10, and a spade tool 20 of the spade device As the multi-axis processing machine moves along an X-axis direction and repeatedly moves in a Y-axis direction, so as to shovel a track of fine pits 101 on the top surface of the workpiece 10, and in the adjacent two A burr 102 is formed between the pits 101, and the presence of the burr 102 is sufficient to affect the flatness of the mirror processing of the workpiece 10, and it is urgent to improve.

The main purpose of this case is to provide an ultrasonic shoveling processing device, which does not produce burrs on the processing surface of the workpiece when shoveling the workpiece, so as to increase the flatness of the processing surface.

In order to achieve the foregoing objective, the technical means adopted in this case is to provide an ultrasonic spade processing device, which includes a housing with a housing space in the front axial direction and an electrical connector at an appropriate position; And a vibration unit, which is installed in the accommodating space, and includes a plurality of piezoelectric sheets and a conductive sheet group having at least one first conductive sheet and at least one second conductive sheet, the conductive sheet group is used to The piezoelectric sheets form a parallel configuration, and the piezoelectric sheets are adjacent to a telescopic member, and a connecting member passes through the telescopic member and the piezoelectric sheets and is connected to an amplitude for a tool installation Rod; the electrical connector electrically connects the at least one first conductive sheet and the at least one second conductive sheet; wherein an upper portion or a lower portion of the abutting surface of the two adjacent piezoelectric sheets of the same pole is set opposite to each other There is a pair of grooves, so that the piezoelectric sheets simultaneously form axial high-frequency vibration under the action of the high-frequency voltage provided by the electrical connector and the deformation caused by the existence of the grooves produces radial deflection vibration, To form an elliptical movement path in the counter or clockwise direction.

In one embodiment, at least one of the opposite side walls of the housing is provided with a connecting mechanism for connecting a mechanical arm or a multi-axis processing machine.

In one embodiment, the connecting mechanism is a circular cylinder or a circular hole.

In one embodiment, the proper position is a back surface of the housing, and the electrical connector is connected to the back surface.

In one embodiment, the upper part occupies one third of the height of each piezoelectric sheet.

In an embodiment, the lower portion occupies one third of the height of each piezoelectric sheet.

The main purpose of this case is to provide a vibration unit for an ultrasonic processing device, which has the functions of axial high frequency vibration and radial yaw vibration.

In order to achieve the foregoing objective, the technical means adopted in this case is to provide a vibration unit for an ultrasonic processing device, which includes a plurality of piezoelectric sheets and a conductive sheet having at least one first conductive sheet and at least one second conductive sheet. A sheet set, the conductive sheet set is used to form the piezoelectric sheets in a parallel configuration, and the piezoelectric sheets are adjacent to a telescopic element, and a connecting element passes through the telescopic element and the piezoelectric sheets are connected in parallel A pair of grooves are provided on an upper or lower part of the abutting surface of two adjacent piezoelectric sheets of the same pole, so that the piezoelectric sheets are in one Under the action of the high-frequency voltage provided by the electrical connector, the axial high-frequency vibration is simultaneously formed and the deformation caused by the existence of the grooves produces radial deflection vibration, so as to form a counter-clockwise elliptical movement path .

In one embodiment, the upper part occupies one third of the height of each piezoelectric sheet.

In an embodiment, the lower portion occupies one third of the height of each piezoelectric sheet.

As shown in FIG. 2 to FIG. 4, the ultrasonic spade processing device in this case includes a housing 1 and a vibration unit 2.

The housing 1 axially has an accommodating space 11 for accommodating the vibration unit 2, and a connecting mechanism 12 is provided on at least one of the opposite side walls. As shown in FIG. 2, the connecting mechanism 12 is a circular cylinder. However, it is not limited to this. In another embodiment, the pair of connecting mechanisms 12 is a round hole. The pair of connecting mechanisms 12 are for connecting to a robotic arm or a multi-axis processing machine (shown in FIG. 3), so the ultrasonic spade processing device is connected to the robotic arm or the multi-axis processing via the connecting mechanism 12 Machine, and move with the robotic arm or the multi-axis processing machine to perform the cutting operation of spade.

In order to provide a DC power supply for the vibrating unit 2 when it is working, an electrical connector 13 is connected to a proper position of the housing 1, for example, on the back side.

Referring to FIGS. 2, 5, and 6, the vibration unit 2 includes a plurality of piezoelectric sheets 21 and a conductive sheet group 22 having at least one first conductive sheet 221 and at least one second conductive sheet 222. The conductive sheet group 22 is used to form the piezoelectric sheets 21 into a parallel configuration. The piezoelectric sheets 21 pass through an insulating inner ring 23, and are adjacent to a telescopic member 24 at the rear, and a connecting member 25, such as a screw, passes through the telescopic member 24 and the insulating inner ring 23, and is connected to An amplitude rod 26 makes the vibration unit 2 axially connected to the amplitude rod 26 and is accommodated in the accommodating space 11. If the connecting member 25 is made of insulating material, the installation of the insulating inner ring 23 can be eliminated.

When a voltage source is connected to the electrical connector 13, one end (positive or negative) of the voltage source is connected to the at least one first conductive sheet 221; and the other end (negative or positive) of the voltage source is connected to the At least one second conductive sheet 222 provides high-frequency voltage to the piezoelectric sheets 21, so that the piezoelectric sheets 21 generate axial high-frequency vibration, so that the tool can perform high-frequency oscillation cutting.

In order to enable the vibration unit 2 to produce unpredictable radial yaw vibration effects, therefore, on the same pole, for example, an upper part of the adjacent surface of the two adjacent piezoelectric plates 21 of the positive electrode, for example, one third of each piezoelectric plate One is provided with a pair of grooves 211 at a height opposite to each other, so that the piezoelectric sheets 21 form high-frequency vibrations in the axial direction under the action of the aforementioned high-frequency voltage, while the other is deformed by the existence of the grooves 211. A radial deflection vibration effect is generated to form an elliptical movement path in a counterclockwise direction.

Please refer to FIG. 2, when the ultrasonic spade processing device is assembled, the vibrating unit 2 is first placed in the accommodating space 11 and is linearly connected with the electrical connector 13. Then, after connecting the amplitude rod 26 to the vibrating unit 2, the amplitude rod 26 is attached to the front of the housing 1 to close the accommodating space 11, which forms the ultrasonic shovel as shown in FIG. 3 A flower processing device, and a spade cutter 27 is installed in front of the amplitude rod 26.

Please refer to FIG. 4, the ultrasonic spade processing device uses the connecting mechanism 12 to connect to a transmission shaft 31 of a multi-axis processing machine 3, and adjusts to an appropriate inclination angle, such as 1.5 degrees, and adjusts the amplitude The spade tool 27 in front of the rod 26 touches a surface 41 of a workpiece 4 to be processed.

Please refer to FIGS. 7a to 7d. As mentioned above, the piezoelectric sheets 21 of the vibration unit 2 simultaneously form axial high-frequency vibration and radial yaw vibration effects due to the presence of the pairs of grooves 211. , To form an elliptical movement path in the counterclockwise direction, so that the shovel tool 27 of the amplitude rod 26 moves with the transmission shaft through the elliptical movement path to shovel upward on the surface 41 to be processed Vibration cutting operation, and a plurality of fine pits 411 are formed on the surface 41, and due to the radial deflection and vibration action of the spade tool 27, burrs will not be generated between adjacent fine pits 411, and Increase the flatness of cutting.

In fact, the ultrasonic spade processing device is also a kind of ultrasonic processing device, so the vibration unit 2 in this case can also be applied to various types of ultrasonic processing devices.

As shown in Figures 8 and 9, it shows the second embodiment of the vibrating unit 2. The difference from the first embodiment is that in the same pole, for example, the bottom of the adjacent surface of the two adjacent piezoelectric sheets 21 of the positive electrode For example, a pair of grooves 211 are arranged opposite to one third of the height of each piezoelectric sheet, so that the piezoelectric sheets 21 form high-frequency vibration in the axial direction under the action of the aforementioned high-frequency voltage, and at the same time by The existence of the grooves 211 causes deformation to generate a radial yaw vibration effect to form an elliptical movement path in a clockwise direction.

Please refer to FIGS. 10a to 10d. As mentioned above, the piezoelectric sheets 21 of the vibration unit 2 simultaneously form axial high frequency vibration and radial deflection vibration effects due to the presence of the pairs of grooves 211. , To form an elliptical movement path in a clockwise direction, so that the scooping tool 27 of the amplitude rod 26 moves with the transmission shaft to scoop down the surface 41 to be processed through the elliptical movement path The vibratory cutting operation is performed, and a plurality of fine pits 411 are formed on the surface 41, and due to the radial deflection and vibration action of the spade tool 27, burrs will not be generated between adjacent fine pits 411, To increase the flatness of cutting.

Therefore, through the implementation of this case, the effect achieved is that the piezoelectric plates of the vibration unit, due to the presence of the pairs of grooves, simultaneously form axial high-frequency vibration and radial deflection vibration effects, thereby forming The elliptical movement path in the counter or clockwise direction makes the surface of the workpiece to be machined during the vibration cutting operation of shoveling, without producing burrs between the adjacent fine pits, so as to increase the flatness of the cutting. It is a great structure that has never been seen before.

The disclosure in this case is one of the preferred embodiments, and any partial changes or modifications that are derived from the technical ideas of the case and can be easily inferred by those who are familiar with the art do not deviate from the scope of the patent right of the case.

1: shell

11: Housing space

12: Connection mechanism

13: electrical connector

2: Vibration unit

21: Piezoelectric sheet

211: Groove

22: Conductive sheet group

221: The first conductive sheet

222: second conductive sheet

23: Insulated inner ring

24: Telescopic parts

25: Combination

26: Amplitude lever

27: shovel tool

3: Multi-axis processing machine

31: drive shaft

4: Workpiece

41: Surface to be processed

411: Slight Pit

10: Workpiece

101: Subtle Pit

102: burr

20: Shovel tool

In order to further reveal the specific technical content of this case, please refer to the diagram first, where: Figure 1 is a schematic diagram of a conventional workpiece after generation processing; Figure 2 is a three-dimensional exploded view of the ultrasonic spade processing device of this case; Figure 3 is a three-dimensional view of the ultrasonic shovel processing device of this case after being assembled; Figure 4 is a schematic diagram of the ultrasonic spade processing device decorated on the processing machine in this case; Figure 5 is a three-dimensional exploded view of the first embodiment of the vibration unit of the present invention; Fig. 6 is a cross-sectional view of the first embodiment of the vibration unit of the present invention after being assembled; Figures 7a to 7d are flowcharts of the shoveling operation of the workpiece in the first embodiment of the vibration unit of the present invention; Figure 8 is a three-dimensional exploded view of the second embodiment of the vibration unit of the present invention; Figure 9 is a cross-sectional view of the second embodiment of the vibration unit of the present invention after assembling; and Figures 10a to 10d are flowcharts of the shoveling operation of the workpiece in the second embodiment of the vibration unit of the present invention.

1: shell

11: Housing space

12: Connection mechanism

13: electrical connector

2: Vibration unit

21: Piezoelectric sheet

22: Conductive sheet group

24: Telescopic parts

25: Combination

26: Amplitude lever

27: shovel tool

Claims (9)

An ultrasonic spade processing device, comprising: a housing with an accommodating space in the front axial direction, and connecting an electrical connector to a selected side of the housing different from the accommodating space; and a vibration The unit is installed in the accommodating space and includes a plurality of piezoelectric sheets and a conductive sheet group having at least one first conductive sheet and at least one second conductive sheet, and the conductive sheet group is used to compress the equal The electric plates form a parallel configuration, and the piezoelectric plates are adjacent to a telescopic member, and a connecting member passes through the telescopic member and the piezoelectric plates and is connected to an amplitude rod for installing a tool; the The electrical connector electrically connects the at least one first conductive sheet and the at least one second conductive sheet; wherein a first height ratio position on an upper portion of the abutting surface of two adjacent piezoelectric sheets of the same pole or A pair of grooves are provided at a second height ratio position at the lower part, so that the piezoelectric sheets can simultaneously form axial high-frequency vibration under the action of the high-frequency voltage provided by the electrical connector and due to the existence of the grooves The resulting deformation produces radial yaw vibration to form an elliptical movement path in the reverse or clockwise direction. As described in the first item of the scope of patent application, the ultrasonic spade processing device, wherein the housing is provided with a connecting mechanism for connecting a mechanical arm or a multi-axis processing machine on at least one of the opposite side walls. For the ultrasonic spade processing device described in item 2 of the scope of patent application, the connecting mechanism is a circular cylinder or a circular hole. For the ultrasonic spade processing device described in item 1 of the scope of patent application, the selected side is a back surface, and the electrical connector is connected to the back surface. In the ultrasonic spade processing device described in item 1 of the scope of patent application, the first height ratio is one third. In the ultrasonic spade processing device described in item 1 of the scope of patent application, the second height ratio is one third. A vibration unit for an ultrasonic processing device, which includes a plurality of piezoelectric sheets and a conductive sheet group having at least one first conductive sheet and at least one second conductive sheet, and the conductive sheet group is used for the piezoelectric The pieces form a parallel configuration, and the piezoelectric pieces are adjacent to a telescopic piece, and a connecting piece passes through the telescopic piece and the piezoelectric pieces and is connected to an amplitude rod for a tool installation; The same A pair of grooves are provided at a first height ratio position at an upper part or a second height ratio position at a lower part of the abutting surface of two adjacent piezoelectric sheets, so that the piezoelectric sheets provide an electrical connector Under the action of the high-frequency voltage, the axial high-frequency vibration is formed simultaneously and the deformation caused by the existence of the grooves produces radial deflection vibration, so as to form an elliptical movement path in the counter or clockwise direction. As described in item 7 of the scope of patent application, the first height ratio is one third of the vibration unit for the ultrasonic processing device. As described in item 7 of the scope of patent application, the vibration unit used in the ultrasonic processing device, wherein the second height ratio is one third.

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