阅读说明：本技术 超音波振动加工装置 (Ultrasonic vibration processing device ) 是由 廖运炫 王昭信 高章琛 于 2020-05-27 设计创作，主要内容包括：本发明涉及一种超音波振动加工装置,应用于一刀具,包含振动构件以及扭转构件,振动构件包含本体,本体包含第一端面、第二端面以及中心轴,并且第一端面及第二端面相对设置于本体的两端,振动构件用以接收电能并根据电能以中心轴的方向产生具有振动频率的振动,扭转构件包含第一表面,第一表面连接振动构件的第二端面,并且第一表面的面积大于第二端面的面积,扭转构件根据振动构件所产生的具有振动频率的振动产生以中心轴为中心的扭转运动,其中,扭转构件连接刀具,并且将振动以及扭转运动传递至刀具。(The invention relates to an ultrasonic vibration processing device, which is applied to a cutter and comprises a vibration component and a torsion component, wherein the vibration component comprises a body, the body comprises a first end surface, a second end surface and a central shaft, the first end surface and the second end surface are oppositely arranged at the two ends of the body, the vibration component is used for receiving electric energy and generating vibration with vibration frequency in the direction of the central shaft according to the electric energy, the torsion component comprises a first surface, the first surface is connected with the second end surface of the vibration component, the area of the first surface is larger than that of the second end surface, the torsion component generates torsion motion with the central shaft as the center according to the vibration with the vibration frequency generated by the vibration component, and the torsion component is connected with the cutter and transmits the vibration and the torsion motion to the cutter.)

1. An ultrasonic vibration processing device applied to a tool, the ultrasonic vibration processing device comprising:

a vibration member, comprising a body, the body comprising a first end face, a second end face and a central shaft, and the first end face and the second end face being disposed at two ends of the body, the vibration member being configured to receive an electric energy and generate a vibration having a vibration frequency in a direction of the central shaft according to the electric energy; and

a torsion member including a first surface connected to the second end surface of the vibration member and having an area larger than that of the second end surface, the torsion member generating a torsional motion centered on the central axis according to a vibration having a vibration frequency generated by the vibration member;

wherein the torsional member is connected to the tool and transmits the vibration and the torsional motion to the tool.

2. The ultrasonic vibration processing apparatus of claim 1, wherein the torsion member comprises a first groove structure disposed on the first surface and surrounding the vibration member.

3. The ultrasonic vibration processing apparatus of claim 2, wherein the first groove structure is shaped like a circular arc.

4. The ultrasonic vibration processing apparatus of claim 1, wherein the vibrating member is a piezoelectric member.

5. The ultrasonic vibration processing apparatus of claim 1, further comprising a fixing member connected to the first end surface of the vibrating member, so that the vibrating member and the torsion member are fixed to a working machine.

6. The ultrasonic vibration processing apparatus of claim 5, further comprising a pre-tightening screw for fixing the fixing member, the vibrating member and the torsion member.

7. The ultrasonic vibration processing apparatus of claim 1, wherein the torsion member includes a second surface opposite to the first surface and a mounting hole disposed on the second surface for fixing the tool.

8. The ultrasonic vibration processing apparatus of claim 7, wherein the torsion member comprises a second groove structure and a plurality of hole structures, the second groove structure and the hole structures are disposed on the second surface, the hole structures are disposed around the mounting hole and the second groove structure is disposed around the hole structures, the hole structures respectively form an angle with a central axis of the vibration member.

9. The ultrasonic vibration processing apparatus of claim 1, further comprising a power supply connected to the vibration member, the power supply providing the electric energy to drive the vibration member to generate the vibration.

10. The ultrasonic vibration processing apparatus of claim 9, wherein the electric energy comprises a first voltage conversion frequency and a second voltage conversion frequency, and a first vibration and a second vibration generated by the vibration member according to the first voltage conversion frequency and the second voltage conversion frequency both correspond to the torsional motion.

Technical Field

The present invention relates to a machining device, and more particularly, to an ultrasonic vibration machining device capable of improving cutting efficiency of a tool.

Background

In the field of machining, ultrasonic vibration machining is one of the common machining methods. The ultrasonic vibration processing combines the ultrasonic vibration and the conventional machining. The processing method is to apply high-frequency ultrasonic vibration to a tool or a processing workpiece and process by using the energy of the ultrasonic vibration. Compared with other machining methods, ultrasonic vibration machining has the advantages of low cutting force, low tool wear, low cutting temperature and the like. In addition, since ultrasonic vibration machining uses a tool to crush a workpiece into fine particles by vertical impact, abrasion, or the like, this method is also suitable for machining various hard and brittle materials, and is widely used in many industries.

The tool or the workpiece of a typical ultrasonic machining apparatus vibrates only in a single direction, that is, the tool only machines the workpiece by vertical impact to cut. However, since the machining mode is only point-to-point between the tool and the workpiece, the surface of the workpiece is not flat, and the machining precision is reduced. Therefore, if the tool can vertically strike and grind the workpiece at the same time, the quality of the workpiece can be improved and the machining efficiency can be improved.

In the prior art, although the ultrasonic machining apparatus can use a special structural design (e.g. a spiral structure) of the tool holder to make the tool vertically impact the workpiece in a single direction and also generate a twisting motion to grind the workpiece, the structural design of the tool holder is complicated and difficult to manufacture, thereby substantially increasing the cost. In addition, in the process of processing the workpiece by the ultrasonic processing equipment, the tool may need to be replaced due to different shapes and materials of the workpiece, and the size and weight of the tool are different, so the ultrasonic processing equipment needs to additionally find out the vibration frequency of the tool including linear and torsional motions, or replace the tool seat corresponding to the tool to maintain the overall weight, so that the tool still includes linear and torsional motions at the same vibration frequency, thereby not only reducing the processing efficiency, but also increasing the cost.

Disclosure of Invention

In view of the above, an object of the present invention is to provide an ultrasonic vibration processing apparatus, which has a simple structure and is convenient to operate and maintain, and can effectively solve the problems of the prior art, save the processing time, improve the efficiency and reduce the cost.

In order to achieve the above object, the present invention discloses an ultrasonic vibration processing apparatus applied to a tool, the ultrasonic vibration processing apparatus comprising:

a vibration member, comprising a body, the body comprising a first end face, a second end face and a central shaft, and the first end face and the second end face being disposed at two ends of the body, the vibration member being configured to receive an electric energy and generate a vibration having a vibration frequency in a direction of the central shaft according to the electric energy; and

a torsion member including a first surface connected to the second end surface of the vibration member and having an area larger than that of the second end surface, the torsion member generating a torsional motion centered on the central axis according to a vibration having a vibration frequency generated by the vibration member;

wherein the torsional member is connected to the tool and transmits the vibration and the torsional motion to the tool.

The torsion member comprises a first groove structure, and the first groove structure is arranged on the first surface and is annularly arranged on the vibration member.

Wherein, the shape of the first groove structure is arc-shaped.

Wherein the vibration member is a piezoelectric member.

The vibration component further comprises a fixing component, and the fixing component is connected with the first end face of the vibration component so as to fix the vibration component and the torsion component on a working machine table.

The vibration component further comprises a pre-tightening screw for fixing the fixing component, the vibration component and the torsion component.

The torsion member comprises a second surface and a mounting hole, the second surface is opposite to the first surface, and the mounting hole is arranged on the second surface and used for fixing the cutter.

The torsion member comprises a second groove structure and a plurality of hole structures, the second groove structure and the hole structures are arranged on the second surface, the hole structures are arranged on the mounting hole in a surrounding mode, the second groove structure is arranged on the hole structures in a surrounding mode, and the hole structures form an angle with the central shaft of the vibration member respectively.

The vibration device further comprises a power supply connected with the vibration member, and the power supply provides the electric energy to drive the vibration member to generate the vibration.

The electric energy comprises a first voltage conversion frequency and a second voltage conversion frequency, and a first vibration and a second vibration generated by the vibration component according to the first voltage conversion frequency and the second voltage conversion frequency both correspond to the torsional motion.

In summary, the ultrasonic vibration processing apparatus of the present invention can generate axial vibration or torsional vibration by the vibration member and the torsion member, so that the tool can vertically impact and grind the workpiece, thereby improving the processing precision and efficiency. Moreover, the torsion member can generate a torsion mode through the first groove structure, the second groove structure and the hole structure, so that the processing time is saved. In addition, the ultrasonic vibration processing device of the present invention drives the tool to process the workpiece by the vibration of the vibration member and the torsion member, so that when the ultrasonic vibration processing device changes the tool in the processing process, the ultrasonic vibration processing device does not need to change the torsion structure matched with the tool, and only needs to search the vibration frequency of the torsion member and the tool for the torsion motion again, thereby improving the efficiency and reducing the cost.

Drawings

FIG. 1: a schematic diagram of an ultrasonic vibration processing apparatus according to an embodiment of the present invention is shown.

FIG. 2: a side view of the ultrasonic vibration processing apparatus of fig. 1 is shown.

FIG. 3: a cross-sectional view of the ultrasonic vibration processing apparatus shown in fig. 1 is shown.

FIG. 4: a bottom view of the ultrasonic vibration processing apparatus of fig. 1 is shown.

FIG. 5: a schematic diagram of an ultrasonic vibration processing apparatus and a tool according to an embodiment of the present invention is shown.

FIG. 6: a schematic diagram of an ultrasonic vibration processing apparatus and a power supply according to an embodiment of the invention is shown.

Detailed Description

In order that the advantages, spirit and features of the invention will be readily understood and appreciated, embodiments thereof will be described in detail hereinafter with reference to the accompanying drawings. It is to be understood that these embodiments are merely representative of the present invention, and that the specific methods, devices, conditions, materials, etc., described herein are not intended to limit the present invention or the corresponding embodiments. Also, the devices shown in the drawings are merely for relative positional representation and are not drawn to scale as they are actually drawn.

In addition, the indefinite articles "a", "an" and "an" preceding an apparatus or element are not intended to limit the number of requirements (i.e., the number of occurrences) of the apparatus or element. Thus, "a" or "an" should be read to include one or at least one, and the singular form of a device or element also includes the plural form unless the number clearly indicates the singular form.

Please refer to fig. 1, fig. 2 and fig. 3. Fig. 1 is a schematic view of an ultrasonic vibration processing apparatus 1 according to an embodiment of the present invention. Fig. 2 is a side view of the ultrasonic vibration processing apparatus 1 shown in fig. 1. Fig. 3 is a schematic cross-sectional view of the ultrasonic vibration processing apparatus 1 shown in fig. 1. The ultrasonic vibration machining apparatus 1 of the present invention is applicable to a tool. In the present embodiment, the ultrasonic vibration processing apparatus 1 includes a fixing member 11, a vibrating member 12, and a torsion member 13. The fixed member 11 is connected to one end of the vibration member 12, and the other end of the vibration member 12 is connected to the torsion member 13. In practice, one end of the fixing member 11 may be fixed to a working machine (not shown), and the other end of the fixing member 11 is connected to the vibrating member 12. The fixed member 11, the vibration member 12, and the torsion member 13 may be arranged in order along the central axis 1213 direction. The tool may be disposed on the torsion member 13 and the workpiece may be disposed below the torsion member 13.

In this embodiment, the vibration member 12 includes a body 121. The body 121 includes a first end 1211, a second end 1212, and a central axis 1213, and the first end 1211 and the second end 1212 are disposed at two opposite ends of the body 121. The vibration member 12 is configured to receive electrical energy and generate vibrations having a vibration frequency in the direction of the central axis 1213 in accordance with the electrical energy. In practice, the vibration member 12 may be a cylinder, and the central axis 1213 is the axis of the cylinder. The first end 1211 and the second end 1212 are respectively located at two ends of the cylinder. The first end 1211 of the vibration member 12 is connected to the fixing member 11. Since the fixing member 11 is fixed to the working machine, when the vibration member 12 generates vibration, the first end 1211 of the vibration member 12 is fixed and the vibration member 12 vibrates with the second end 1212. The vibration member 12 may be a piezoelectric member composed of a plurality of piezoelectric elements such as piezoelectric plates formed of piezoelectric materials. Therefore, when the piezoelectric member receives electric power, the piezoelectric member is elongated or shortened according to the electric power, thereby generating vibration. Further, the piezoelectric member expands and contracts in the same direction as the central axis 1213, that is, when the vibration member 12 receives electric power, the vibration member 12 generates linear vibration having a vibration frequency in the direction of the central axis 1213 (the Z-axis direction in fig. 1). The vibration member 12 is not limited to the aforementioned piezoelectric member, and the vibration member 12 may be of another type. In another embodiment, the vibration member 12 is a magnetostrictive member, and the material of the vibration member 12 may be a magnetic material. When the vibration member 12 receives the electric energy, the vibration member 12 generates a magnetic expansion and contraction phenomenon due to a change of the magnetic field, so that the length of the vibration member 12 is changed, and vibration is generated.

Please refer to fig. 3. In this particular embodiment, torsion member 13 includes a first surface 131. The first surface 131 connects the second end face 1212 of the vibration member 12, and the area of the first surface 131 is larger than that of the second end face 1212. The torsion member 13 may be a disc-shaped element, and the first surface 131 of the torsion member 13 may be attached to the second end 1212 of the vibration member 12. Therefore, when the vibration member 12 vibrates at a vibration frequency, the vibration member 12 can transmit the vibration to the torsion member 13, so that the torsion member 13 also vibrates at the vibration frequency and generates a vibration mode corresponding to the vibration frequency. In practice, the vibration mode of the torsion member 13 may include linear vibration in the same direction as the vibration direction of the vibration member 12, and torsional motion around the central axis 1213 of the vibration member 12. Further, the vibration mode of the torsion member 13 may correspond to a plurality of vibration frequencies. For example, the torsion member 13 has a linear vibration mode in the Z-axis direction at 28.7KHz, 58.2 KHz; and torsional vibration modes at 20.5KHz, 53.8KHz, 80.2KHz, 89.3KHz, 122KHz, 130KHz and 151 KHz. Further, the axial center of the torsion member 13 and the central axis 1213 of the vibration member 12 are located on the same straight line, and therefore, when the vibration member 12 transmits the vibration to the torsion member 13, the torsion member 13 can uniformly transmit the vibration at the center of the disk outward to the outer edge.

Please refer to fig. 1, fig. 3 and fig. 4. Fig. 4 is a bottom view of the ultrasonic vibration processing apparatus 1 shown in fig. 1. In the present embodiment, the torsion member 13 includes a second surface 132, a first groove structure 135, a second groove structure 136, and a plurality of hole structures 137. The second surface 132 is opposite to the first surface 131, the first groove structure 135 is disposed on the first surface 131 and surrounds the vibration member 12, and the second groove structure 136 and the plurality of hole structures 137 are disposed on the second surface 132. Further, the hole structures 137 are arranged in a ring shape, and the second groove structure 136 is disposed around the hole structures 137. The first groove structure 135 may be an annular groove as shown in fig. 1, and the second groove structure 136 may also be an annular groove, and the cross-sectional shapes of the first groove structure 135 and the second groove structure 136 may be circular arcs, but the invention is not limited thereto in practice. And each aperture structure 137 forms an angle a with the central axis 1213 of the vibrating member 12. Due to the aperture structure 137 having an angle a, the thickness of the torsion member 13 varies. The angle a may be between 10-20 degrees, but is not limited thereto, and the angle a may also be adjusted according to the design of the structure. As shown in fig. 3, the thickness of the torsion member 13 in the hole structure 137 gradually changes from the axial center to the outer edge. When the vibrating member 12 drives the torsion member 13 to vibrate in the Z-axis direction, the torsion member 13 is located at a position where the thickness changes, so that the vibration mode is more likely to change. Further, since the hole structure 137 has an angle a, the hole structure 137 can change the thickness of the torsion member 13 by the angle a, so that the torsion member 13 has a deformation in the X-axis direction. That is, the vibration provided by the vibration member 12 in the Z-axis direction is split into a part of the vibration in the Z-axis direction and a part of the vibration in the X-axis direction by the hole structure 137, so that the torsion member 13 generates radial expansion or contraction (i.e., in the X-axis direction), and further generates a torsion motion. Similarly, the first groove structure 135 and the second groove structure 136 are arc-shaped grooves, so that the thickness of the torsion member 13 at the first groove 135 and the second groove 136 is changed. Therefore, when the vibration member 12 drives the torsion member 13 to vibrate, the torsion member 13 is located at the first groove structure 135 and the second groove structure 136 to expand or contract in the radial direction (i.e., in the X-axis direction), so as to generate a torsion motion. Therefore, when the vibration member 12 drives the torsion member 13 to vibrate at a vibration frequency at which the torsion member 13 generates a torsional mode, the torsional mode of the torsion member 13 and the vibration frequency are coupled to each other to generate a torsional motion.

Please refer to fig. 3 and 5. Fig. 5 is a schematic view of the ultrasonic vibration processing apparatus 1 and the tool 2 according to an embodiment of the present invention. In this particular embodiment, torsion member 13 further includes a mounting hole 138. The mounting hole 138 is disposed on the second surface 132 of the torsion member 13 and is used for fixing the tool 2 therein. Further, the center of the mounting hole 138 is located at an extended position of the central axis 1213 of the vibration member 12, and the second recess structure 136 and the hole structure 137 of the torsion member 13 are annularly provided around the mounting hole 138. In practice, the tool 2 has a mounting structure that matches the mounting hole 138 of the torsion member 13 to be mounted in the mounting hole 138 through the mounting structure. When the tool 2 is placed on the mounting hole 138 of the torsion member 13, the torsion motion generated by the torsion member 13 can be transmitted to the tool 2, so that the tool 2 can generate the torsion motion along with the torsion member 13. Further, the vibration generated by the vibration member 12 can also be transmitted to the tool 2 through the torsion member 13. Therefore, the tool 2 can process the workpiece in a vertical impacting and abrasion manner, and the processing efficiency is further improved. In addition, since the vibration mode of the tool 2 is driven by the vibration modes generated by the vibration member 12 and the torsion member 13, when the tool needs to be replaced during the machining process, only the vibration mode of the torsion member 13 and the torsional motion of the tool 2 needs to be searched, and the tool seat matched with the tool does not need to be replaced, so that the cost and the machining time are saved.

Please refer to fig. 3 again. As shown in fig. 3, in the present embodiment, the ultrasonic vibration processing apparatus 1 further includes a pre-tightening screw 14. The preload screw 14 is used to fix the fixing member 11, the vibration member 12, and the torsion member 13. In practice, the fixing member 11, the vibrating member 12 and the twisting member 13 all include screw hole structures matching the pre-tightening screws 14. The pre-tightening screw 14 can pass through the fixing member 11, the vibrating member 12 and the torsion member 13 and tightly connect the three together, so as to ensure that the vibration generated by the vibrating member 12 can be completely transmitted to the torsion member 13, thereby improving the processing efficiency and the processing precision.

Please refer to fig. 6. Fig. 6 is a schematic diagram of the ultrasonic vibration processing apparatus 1 and the power supply 15 according to an embodiment of the present invention. In this embodiment, the ultrasonic vibration processing apparatus 1 further comprises a power supply 15 connected to the vibration member. The power supply 15 supplies electric power to drive the vibration member 12 to generate vibration. In practice, the electric energy provided by the power supply 15 may be an alternating current, and the alternating current includes a voltage conversion frequency. The voltage conversion frequency may be a vibration frequency generated by the vibration member 12, and the vibration member 12 may generate a vibration of a corresponding vibration frequency according to the voltage conversion frequency supplied by the power supply 15. Further, the power supply 15 can provide electric energy in a frequency range, so that the power supply 15 can generate vibrations of different frequencies by the vibration member 12 in a frequency sweeping manner, thereby generating the torsional motion of the torsion member 13 at a specific frequency. For example, the power supply 15 can provide 50Hz to 100Hz of power to drive the vibration member 12 to vibrate, and at this time, the vibration member 12 drives the torsion member 13 to vibrate at a vibration frequency of 50Hz to 100Hz respectively. The torsion member 13 generates torsion motion when the vibration frequency is 80.2KHz and 89.3 KHz. It should be noted that the voltage conversion frequency range provided by the power supply 15 is not limited thereto, and the voltage conversion frequency range may be determined according to design or requirement. Therefore, when the tool needs to be replaced during machining, only the vibration frequency of the torsional movement of the torsional member 13 and the tool 2 needs to be searched for, so as to save the machining time and improve the machining efficiency.

In summary, the ultrasonic vibration processing apparatus of the present invention can generate axial vibration and torsional vibration by the vibrating member and the torsion member, so that the tool can vertically impact and grind the workpiece, thereby improving the processing precision and efficiency. Moreover, the torsion member can generate a torsion mode through the first groove structure, the second groove structure and the hole structure, so that the processing time is saved. In addition, the ultrasonic vibration processing device of the present invention drives the tool to process the workpiece by the vibration of the vibrating member and the twisting member, so that when the ultrasonic vibration processing device changes the tool during the processing process, the ultrasonic vibration processing device does not need to change the twisting structure matching with the tool, and needs to search the vibration mode of the twisting motion of the twisting member 13 and the tool 2 again, so as to improve the efficiency and reduce the cost.

The above detailed description of the preferred embodiments is intended to more clearly illustrate the features and spirit of the present invention, and is not intended to limit the scope of the present invention by the preferred embodiments disclosed above. On the contrary, it is intended to cover various modifications and equivalent arrangements included within the scope of the claims. The scope of the claims is thus to be accorded the broadest interpretation so as to encompass all such modifications and equivalent arrangements as is within the scope of the appended claims.