TW201819106A - Apparatus for ultrasonic-assisted grinding - Google Patents

Abstract

An apparatus for ultrasonic-assisted grinding includes a grinding wheel, a U-shaped resonant rod, an ultrasonic vibrator and a liquid supply unit. The U-shaped resonant rod has a non-closed notch. The ultrasonic vibrator transmits ultrasonic vibrations via the U-shaped resonance rod. The liquid supply unit provides a processing liquid to a processing area where the grinding wheel is in contact with an object to be processed. When the grinding wheel performs processing, the non-closed notch surrounds the grinding wheel.

Description

 Ultrasonic assisted grinding device  

This invention relates to a polishing apparatus, and more particularly to an ultrasonic assisted grinding apparatus.

In the application of precision grinding machines, the maintenance of the precision of the grinding wheel plays a very important role. In addition to the sharpness of the grinding surface of the grinding wheel, the grinding wheel must be kept in a precise size so that a well-formed workpiece can be obtained. However, the grinding wheel will wear after a long time of grinding, and the surface of the grinding wheel will evolve from normal to passivation, and the surface of the finished part will be burnt due to abnormal grinding wheel, surface damage or surface roughness and trembling defects. It needs to be repaired frequently. If it can slow down the passivation of the grinding wheel, it can maintain sufficient surface finish precision and effectively improve the surface quality.

In view of the above problems, how to apply the ultrasonic-assisted grinding process to maintain the sharpness of the grinding wheel is more urgent.

Accordingly, it is an object of the present invention to provide an ultrasonic assisted grinding apparatus whereby the efficiency of the grinding is increased.

According to the above object of the present invention, an ultrasonic assisted polishing apparatus comprising a grinding wheel, a U-shaped resonance rod, an ultrasonic vibrator, and a liquid supply unit is proposed. The U-shaped resonant rod has a non-closed notch. The ultrasonic vibrator transmits ultrasonic vibration through a U-shaped resonance rod. The liquid supply unit supplies a processing area to the processing area where the grinding wheel contacts the object to be processed. When the grinding wheel performs machining, a non-closed notch surrounds the grinding wheel.

According to an embodiment of the invention, the ultrasonic assisted grinding apparatus further comprises another U-shaped resonant rod.

According to an embodiment of the invention, when the grinding wheel performs machining, the two non-closed notches of the two U-shaped resonance bars are symmetrical to each other with respect to the grinding wheel.

According to an embodiment of the invention, the ultrasonic auxiliary grinding device further comprises a processing liquid nozzle, and the liquid supply unit is connected to the processing liquid nozzle.

According to an embodiment of the invention, the U-shaped resonance rod has a machining liquid flow path, and an output opening is located at a free end of the U-shaped resonance rod, and the liquid supply unit communicates with the machining liquid flow path.

According to an embodiment of the invention, the two U-shaped resonance rods each have a machining liquid flow path, and the output opening is located at a free end of the U-shaped resonance rod, and the liquid supply unit communicates with the machining liquid flow paths.

In accordance with an embodiment of the present invention, the free ends of the two U-shaped resonant rods are aligned with the machined regions of the grinding wheel as the grinding wheel performs machining.

According to an embodiment of the invention, at least one of the two U-shaped resonant rods can be moved away from the grinding wheel during non-machining.

According to an embodiment of the invention, the grinding wheel is a grinding wheel, a non-woven grinding wheel, a rubber grinding wheel or a diamond grinding wheel.

By applying the above-mentioned ultrasonic auxiliary grinding device of the invention, the non-constrained structure of the resonance rod design meets the demand for the improvement of the polishing efficiency, so as to meet the industrial application requirements of high precision production.

100‧‧‧Ultrasonic auxiliary grinding device

100'‧‧‧Ultrasonic Aided Grinding Device

101‧‧‧Articles to be processed

101a‧‧‧Processing area

102‧‧‧ grinding wheel

103‧‧‧Processing fluid

104‧‧‧U-shaped resonance rod

104a‧‧‧Free end

105‧‧‧Output opening

105a‧‧‧Output opening

106‧‧‧liquid supply unit

106a‧‧‧Processing fluid nozzle

110‧‧‧Supersonic vibrator

112‧‧‧Processing fluid flow path

114‧‧‧Unclosed gap

The above and other objects, features, advantages and embodiments of the present invention will become more <RTIgt; A schematic view of an auxiliary polishing apparatus; [Fig. 2] is a schematic plan view of the ultrasonic auxiliary grinding apparatus of Fig. 1; [Fig. 3] is a schematic diagram of an ultrasonic auxiliary grinding apparatus according to an embodiment of the present invention. Schematic diagram of the resonance rod; [Fig. 4] is a schematic bottom view of the resonance rod of Fig. 3; Fig. 5 is a schematic plan view of the ultrasonic auxiliary grinding apparatus according to another embodiment of the present invention; And [Fig. 6] is a side view showing the processing of the ultrasonic assisted polishing apparatus of [Fig. 5].

In order to increase the polishing performance of the polishing apparatus, the present invention provides an ultrasonic auxiliary polishing apparatus, wherein the resonance rod has a non-constrained design with respect to the grinding wheel, and can effectively achieve the function of ultrasonic vibration assisting polishing efficiency enhancement to meet high precision. Industrial application requirements for production.

Please refer to [FIG. 1] and [FIG. 2] at the same time, and [FIG. 1] is a schematic diagram of an ultrasonic auxiliary grinding apparatus according to an embodiment of the present invention; [FIG. 2] shows the super [FIG. 1] A schematic view of the sound assisted polishing apparatus in a plan view. The ultrasonic assisted polishing apparatus 100 includes a grinding wheel 102, a U-shaped resonance rod 104, and a liquid supply unit 106. In this embodiment, the grinding wheel 102 may be a grinding wheel, a non-woven grinding wheel, a rubber grinding wheel, a diamond grinding wheel or other ring wheel or disc wheel for grinding, cutting, polishing, etc., the surface of the object to be processed 101. Drive it by a motor or other drive (not shown). The liquid supply unit 106 is configured to provide a processing area to the processing area where the grinding wheel 102 is in contact with the object to be processed 101. In the present embodiment, the liquid supply unit 106 is connected to a machining liquid nozzle 106a to discharge the machining fluid from the machining liquid nozzle 106a. When the grinding wheel 102 performs machining, the machining liquid jet head 106 sprays the machining fluid to the position of the processing region, and the U-shaped resonance rod 104 surrounds the periphery of the grinding wheel 102 by its non-closed notch 114. The ultrasonic vibrator 110 can be coupled to the U-shaped resonant rod 104 such that it can transmit ultrasonic vibrations to a processing region via the U-shaped resonant rod 104. The machining fluid can be retained between the U-shaped resonance rod 104 and the surface of the object to be processed 101, so that the ultrasonic vibration energy can be efficiently transmitted to the processing area through the resonance rod and the machining liquid to improve the grinding performance (for example, the polishing efficiency can be improved by the removal of the grinding debris). ).

In the present embodiment, the U-shaped resonant rod 104 has an outer shape that approximates the shape of the tuning fork, and has a non-closed notch 114 that allows it to move away from the grinding wheel 102 during non-machining. When the grinding wheel 102 needs to be replaced due to consumption, wear or other factors, the grinding wheel 102 and the U-shaped resonance rod 104 can be removed from each other (moving the grinding wheel 102 or the U-shaped resonance rod 104), and the grinding wheel 102 can be easily replaced. The direction of movement can be adjusted according to needs. The shape of the U-shaped resonance rod 104 is provided with a non-closed notch, which can cooperate with the tool machine in cooperation with the cylinder and the linkage mechanism to achieve the function of easily replacing the grinding wheel or the object to be processed, so as to meet the industrial application requirements of the automated production.

Please refer to [FIG. 3] and [FIG. 4] at the same time, and FIG. 3 is a schematic diagram of a resonance rod of the ultrasonic auxiliary grinding apparatus according to an embodiment of the present invention; [FIG. 4] [FIG. 3] A schematic view of the resonance rod. The ultrasonic auxiliary polishing apparatus of the present embodiment is substantially the same as the ultrasonic auxiliary polishing apparatus of [Fig. 1, 2], but the liquid supply unit 106 communicates with the machining liquid flow path 112 in the resonance rod, so that the supplied machining liquid is passed through The machining fluid flow path 112 in the resonance rod and the output opening 105 of the free end of the resonance rod are sprayed onto the object to be processed. The U-shaped resonance rod 104 of the embodiment also has the function of moving away from the grinding wheel 102 during non-machining, and can cooperate with the tool machine in cooperation with the cylinder and the linkage mechanism to achieve the function of easily replacing the grinding wheel or the object to be processed. In order to meet the industrial application needs of automated production.

In the embodiment of [Figs. 3, 4], the output opening 105 of the machining fluid flow path 112 is located at the free end 104a of the U-shaped resonant rod. The output opening 105 of the machining fluid may be a single large opening, or a plurality of smaller output openings 105a as shown in FIG. 4 (refer to the enlarged view below in FIG. 4), which may be designed according to actual needs.

Please refer to [FIG. 5] and [FIG. 6] at the same time, and FIG. 5 is a schematic plan view of the ultrasonic auxiliary grinding apparatus 100' according to another embodiment of the present invention; [FIG. 6] shows [FIG. 6] 5] A schematic side view of the ultrasonic assisted grinding apparatus 100' during processing. This embodiment differs from the previous embodiment in that it has two U-shaped resonance bars. Both U-shaped resonant rods 104 of the ultrasonic assisted grinding apparatus 100' are used to transmit ultrasonic vibrations to the processed position (i.e., at the processing area 101a in the figure). Therefore, when the grinding wheel 102 is applied, the free ends of the two U-shaped resonant rods 104 are close but retain a gap, so that the two non-closed notches 114 of the two U-shaped resonant rods 104 are symmetrical with respect to the grinding wheel 102. The positioning state of the above-mentioned resonant rod during construction helps the working fluid 103 to be retained between the U-shaped resonant rod 104 and the surface of the object to be processed 101, so that the ultrasonic vibration energy can be effectively transmitted to the resonant rod and the machining fluid to the The area 101a is processed to improve the polishing performance (for example, to improve the removal of grinding debris). In this embodiment, if the output opening of the machining fluid is located at the free end 104a of the two U-shaped resonance rods, when the grinding wheel 102 performs machining, the free end 104a of the two U-shaped resonance rods 104 and the processing region 101a of the grinding wheel 102 The alignment allows the machining fluid to be output to the processing area 101a at the shortest distance.

In addition, one or both of the aforementioned U-shaped resonant rods 104 of the present invention can move away from the grinding wheel 102 during non-machining, or move the grinding wheel 102 away from the U-shaped resonant rod 104. When the grinding wheel 102 needs to be replaced due to consumption, wear or other factors, the two resonance rods or one of the two or the grinding wheel 102 can be removed, so that the grinding wheel 102 or the object to be processed 101 can be easily replaced, and the moving direction can be changed. Adjust according to needs. The rotation or movement of the U-shaped resonance rod can cooperate with the tool machine in cooperation with the cylinder and the linkage mechanism to achieve the function of easily replacing the grinding wheel or the object to be processed, so as to meet the industrial application requirements of the automated production.

The two U-shaped resonant rods 104 of the ultrasonic auxiliary grinding device 100' may also be configured with the processing liquid flow path 112 to spray the working fluid in the two U-shaped resonant rods as in the embodiment of [Fig. 3] and [Fig. 4]. Its output opening 105 is placed at the free end of the U-shaped resonance rod.

The design of the ultrasonic assisted machining such as the grinding wheel, the resonance rod, the vibrator and the liquid supply unit mentioned above can be more easily applied or integrated into various automatic production lines and large-scale equipment, so that the application field can be further expanded.

In summary, the above-mentioned ultrasonic auxiliary grinding device of the present invention has a non-constrained structure of the resonant rod design, and cooperates with the tool machine in cooperation with the cylinder, the linkage mechanism, etc., to facilitate the replacement of the grinding wheel or the object to be processed and the grinding efficiency. Increased demand to meet the industrial application needs of automated production.

While the invention has been described above in terms of several embodiments, it is not intended to limit the scope of the invention, and the invention may be practiced in various embodiments without departing from the spirit and scope of the invention. The scope of protection of the present invention is defined by the scope of the appended claims.

Claims (10)

 An ultrasonic auxiliary grinding device comprising: a grinding wheel for processing an object to be processed; a U-shaped resonance rod having a non-closed notch; and an ultrasonic vibration vibrator transmitting ultrasonic vibration through the U-shaped resonance rod And a liquid supply unit for providing a processing liquid to a processing area of the grinding wheel in contact with the object to be processed, the non-closed notch surrounding the grinding wheel when the grinding wheel performs machining.    The ultrasonic auxiliary grinding apparatus according to claim 1, further comprising another U-shaped resonance rod.    The ultrasonic assisted grinding apparatus according to claim 2, wherein when the grinding wheel performs machining, the two non-closed notches of the two U-shaped resonant rods are symmetrical with each other with respect to the grinding wheel.    The ultrasonic auxiliary grinding apparatus according to claim 1, further comprising a machining liquid nozzle, wherein the liquid supply unit is connected to the machining liquid nozzle.    The ultrasonic auxiliary grinding apparatus according to claim 1, wherein the U-shaped resonance rod has a machining liquid flow path, and an output opening is located at a free end of the U-shaped resonance rod, and the liquid supply unit communicates the processing. Liquid flow path.    The ultrasonic auxiliary grinding apparatus according to claim 2, wherein the two U-shaped resonance rods have a machining liquid flow path, and an output opening is located at a free end of the U-shaped resonance rod, and the liquid supply unit is connected. To the processing fluid flow paths.    The ultrasonic auxiliary grinding apparatus according to claim 6, wherein when the grinding wheel performs machining, the free ends of the two U-shaped resonance rods are aligned with the processing area of the grinding wheel.    The ultrasonic assisted grinding apparatus of claim 1, wherein the U-shaped resonant rod is movable away from the grinding wheel during non-machining.    The ultrasonic assisted grinding apparatus of claim 2, wherein at least one of the two U-shaped resonant rods is movable away from the grinding wheel during non-machining.    The ultrasonic assisted grinding apparatus according to claim 1, wherein the grinding wheel is a grinding wheel, a non-woven grinding wheel, a rubber grinding wheel or a diamond grinding wheel.