Numerical control machine tool for ultrasonic punching
By introducing vibration detection and oscillation stop mechanisms into ultrasonic drilling CNC machine tools, the problem of brittle fracture in the processing of hard and brittle materials has been solved, resulting in cost reduction and efficiency improvement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-23
- Publication Date
- 2026-04-03
AI Technical Summary
Existing ultrasonic drilling equipment is prone to cracking when processing hard and brittle materials, leading to increased production costs, reduced processing efficiency, and difficulties in equipment maintenance.
By introducing a vibration detection mechanism and a swing stop mechanism into an ultrasonic drilling CNC machine tool, the machine can automatically trigger a stop protection by detecting changes in the vibration frequency of the material, thus preventing brittle fracture.
It effectively avoids the cracking of hard and brittle materials during processing, reduces production and maintenance costs, improves processing efficiency, and reduces equipment damage.
Smart Images
Figure CN121777291A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of ultrasonic drilling equipment technology, specifically to a CNC machine tool for ultrasonic drilling. Background Technology
[0002] CNC machine tools used for ultrasonic drilling are devices that achieve drilling by applying ultrasonic vibration energy to the workpiece material. The core is to convert electrical energy into high-frequency mechanical vibration, which, combined with the impact and grinding action of abrasives, completes the drilling of hard and brittle materials (such as glass, ceramics, semiconductors, gemstones, etc.).
[0003] The working principle of an ultrasonic drilling machine is mainly to use an ultrasonic generator to convert industrial frequency AC power (220V / 380V) into a high frequency electrical signal of more than 20kHz. The output power and vibration frequency can be adjusted to provide an energy source for the entire system. Its core purpose is to use a processing tool to impact the surface of the workpiece at a frequency of more than 20kHz. Under the vibration of the tool, the workpiece material is repeatedly impacted and scraped, causing micro-cracks in the hard and brittle material and gradually breaking off.
[0004] Although ultrasonic drilling is designed for drilling hard and brittle materials, cracking can still occur. The reason why ultrasonic drilling cannot completely avoid cracking lies in the characteristics of hard and brittle materials and the working principle of ultrasonic processing, which presents the following problems: 1. Brittle materials have high hardness (Mohs hardness ≥ 6), but extremely low fracture toughness (only 1 / 10 to 1 / 100 of that of metals), and often contain microscopic cracks invisible to the naked eye (generated during the production process). During ultrasonic drilling, even tiny local stress concentrations can cause these microcracks to propagate rapidly, eventually leading to material brittleness.
[0005] 2. The principle of ultrasonic drilling is that "the tool head drives abrasive grains to impact the material at a high frequency" (frequency 20~40kHz, the impact force is small but the frequency is extremely high). During normal processing, the impact of abrasive grains is evenly distributed, and the material forms a hole through "micro-fracture". When the hole depth increases, the abrasive grains wear unevenly, or there are hidden cracks inside the material, the impact energy will "accumulate" at the crack, causing the local stress to exceed the fracture strength of the material and directly cause brittle fracture.
[0006] Before a material fractures, its vibration will exhibit abnormalities (such as a sudden decrease in vibration amplitude or a shift in frequency). This is because during the production of hard and brittle materials, there are tiny microcracks (similar to fine marks on glass) that are invisible to the naked eye. As processing progresses, the high-frequency impact of abrasive grains causes these microcracks to continuously "grow" (stress concentration at the crack tip, which is equivalent to "the more it is impacted, the faster it cracks"). When the microcracks expand to a certain extent (such as exceeding 0.1 mm in length), when the abrasive grains impact the material, the impact energy can no longer cause the material to "vibrate elastically as a whole." Instead, it is absorbed by the "voids" in the crack (such as the friction and collision between the surfaces on both sides of the crack, consuming energy) or dispersed by the crack (energy changes from "overall transmission" to "local consumption"), which leads to a sudden decrease in vibration amplitude.
[0007] When hard and brittle materials crack during processing, it not only increases the manufacturer's production costs but also requires downtime for cleaning, reducing the material processing efficiency. In addition, the flying fragments generated when hard and brittle materials crack may scratch the machine tool and other parts, further increasing the manufacturer's maintenance costs.
[0008] To address the aforementioned issues, there is an urgent need for innovative designs based on existing CNC machine tools used for ultrasonic drilling. Summary of the Invention
[0009] The present invention addresses the problem of overly simplistic solutions in existing technologies by providing a significantly different solution. Specifically, the present invention aims to provide a CNC machine tool for ultrasonic drilling, thereby solving the problems of increased maintenance costs, increased production costs, and reduced processing efficiency caused by the brittle fracture of hard and brittle materials during processing, as mentioned in the background.
[0010] To achieve the above objectives, the present invention provides the following technical solution: a CNC machine tool for ultrasonic drilling, comprising an ultrasonic machine tool body, an ultrasonic drill bit body disposed inside the ultrasonic machine tool body, a processing material body disposed on the outer wall of the ultrasonic machine tool body, and press-to-reset switch bodies symmetrically disposed on both sides of the bottom of the processing material body, and an ultrasonic generator body disposed on one side of the press-to-reset switch body, further comprising: Vibration detection mechanism installed at the bottom of the processed material body; A swing stop mechanism installed on one side of the vibration detection mechanism; The vibration detection mechanism includes a top rod disposed at the bottom of the processing material body, a top wheel movably disposed at one end of the top rod, and a rotating wheel movably disposed on one side of the top wheel; The swing-stop mechanism includes a top block movably disposed on the top of the rotating wheel, a rotating rod movably disposed on the inner wall of the top block, and a swing arm movably connected to the outer wall of the rotating rod.
[0011] Preferably, the other end of the ejector rod is connected with a telescopic rod, and a spring is arranged around the outer wall of the telescopic rod; The outer wall of the rotating wheel is movably connected with a linkage wheel.
[0012] Preferably, sliding rods are movably arranged on both sides of the outer wall of the swing rod; One end of the sliding rod is movably connected with a roller.
[0013] Preferably, one end of the ejector rod is cylindrical, and one end of the ejector rod is aligned with the tooth groove on one side of the outer wall of the top wheel; The other end of the ejector rod is connected with one end of the telescopic rod.
[0014] Preferably, the tooth groove of the top wheel is meshed with the tooth groove of the linkage wheel; The linkage wheel is movably connected with the rotating wheel; The top wheel and the rotating wheel are in driving connection through the linkage wheel.
[0015] Preferably, the front view of the top block is in an inverted U shape; Both ends of the top block are asymmetrical; The diameter of one end of the top block is slightly smaller than the diameter of the other end of the top block.
[0016] Preferably, both ends of the top block are adapted to the tooth grooves of the rotating wheel; The top block is movably connected with the rotating rod; The rotating rod is movably connected with the swing rod; The top block and the swing rod are in driving connection through the rotating rod.
[0017] Preferably, the three-dimensional view of the swing rod is in a Y shape; Rollers are movably arranged at one end of each of the sliding rods, and the other end of each of the sliding rods is connected with the outer wall of the push-button reset switch body; The rollers are all in contact with the outer wall of the swing rod.
[0018] Preferably, chutes are arranged on both sides of the swing rod; The sliding rods are all movably connected with the chutes arranged on both sides of the swing rod.
[0019] Preferably, the two push-button reset switch bodies are electrically connected in parallel through a circuit; The two push-button reset switch bodies are electrically connected in series with the ultrasonic generator body through a circuit.
[0020] Compared with the prior art, the beneficial effects of the present invention are: 1. By incorporating a vibration detection mechanism and a swing-stop mechanism, the ultrasonic drill bit can automatically detect changes in the vibration frequency of the material during processing. When the vibration frequency of the material decreases, it indicates a tendency for the material to become brittle. In this case, the vibration detection mechanism and the swing-stop mechanism will automatically trigger, stopping the swing arm. After the swing arm stops swinging, two push-to-reset switches will reset simultaneously, de-energizing the ultrasonic generator and stopping the ultrasonic drill bit. The vibration detection mechanism and the swing-stop mechanism form a "temporary protection" mechanism for the equipment, effectively preventing the material from becoming brittle during processing. This further avoids increased production costs and the need for subsequent downtime maintenance due to material brittleness. After the equipment is shut down, the processed material can be removed and processed separately, thereby reducing the manufacturer's production and maintenance costs, ensuring the processing stability of the material, and further improving the processing efficiency.
[0021] 2. The gradual stopping motion of the pendulum arm ensures that the equipment does not stop immediately when the "temporary protection" mechanism is triggered. Instead, it gradually stops after the pendulum arm's swing force gradually disappears. This stopping process acts as a "buffer," thus avoiding "accidental shutdown." During ultrasonic processing, the processed material may experience brief vibration fluctuations, such as momentary abrasive grain jamming or temporary interruption of coolant. These fluctuations are not signs of "material imminent brittleness," but rather minor disturbances during normal processing. If the pendulum arm stops "instantly," these brief fluctuations may lead to "sudden disappearance of thrust - immediate stop of the pendulum arm - disconnection of the switch - accidental shutdown," which would negatively impact processing efficiency. The gradual stopping motion of the pendulum arm essentially utilizes the inertia of the pendulum to achieve buffering, equivalent to setting an "anti-vibration threshold." Only when the amplitude of the processed material's vibration suddenly decreases abnormally and the frequency deviation persists for a period of time, will the pendulum arm gradually stop after its inertia is exhausted. This ensures that the shutdown only targets "true signs of impending brittleness," without affecting the continuity of normal processing, and avoids damage to the equipment caused by "emergency stops." Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention.
[0023] Figure 2 This is a schematic diagram showing the connection between the vibration detection mechanism, the swing stop mechanism, the ultrasonic generator body, and the press reset switch body of the present invention.
[0024] Figure 3 This is a schematic diagram of the vibration detection mechanism, the swing stopping mechanism, and the processing material body of the present invention.
[0025] Figure 4 This is a schematic diagram of the connection structure between the vibration detection mechanism and the processing material body of the present invention.
[0026] Figure 5 This is a schematic diagram of the vibration detection mechanism of the present invention. Figure 6 This is a rear plan view of the vibration detection mechanism of the present invention. Figure 7 This is a schematic diagram of the connection structure of the material body, telescopic rod, spring and top rod of the present invention; Figure 8 This is a schematic diagram of the telescopic rod, spring, and top rod of the present invention; Figure 9 This is a partial structural schematic diagram of the vibration detection mechanism and the swing stopping mechanism of the present invention; Figure 10 This is a partial structural schematic diagram of the swing-stop mechanism of the present invention; Figure 11 This is a schematic diagram of the partial structural motion of the swing-stop mechanism of the present invention; Figure 12 This is a three-dimensional view of the motion principle of the swing-stop mechanism of the present invention; Figure 13 This is a plan view illustrating the motion principle of the swing-stop mechanism of the present invention.
[0027] In the diagram: 1. Ultrasonic machine tool body; 2. Vibration detection mechanism; 201. Telescopic rod; 202. Spring; 203. Top rod; 204. Top wheel; 205. Linkage wheel; 206. Rotary wheel; 3. Swinging stop mechanism; 301. Top block; 302. Rotary rod; 303. Swing rod; 304. Slide rod; 305. Roller; 4. Ultrasonic drill bit body; 5. Material processing body; 6. Press reset switch body; 7. Ultrasonic generator body. Detailed Implementation
[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0029] Please see Figures 1 to 13 The present invention provides a technical solution: a CNC machine tool for ultrasonic drilling, comprising an ultrasonic machine tool body 1, an ultrasonic drill bit body 4 disposed inside the ultrasonic machine tool body 1, a processing material body 5 disposed on the outer wall of the ultrasonic machine tool body 1, and press-reset switch bodies 6 symmetrically disposed on both sides of the bottom of the processing material body 5, and an ultrasonic generator body 7 disposed on one side of the press-reset switch body 6, and further comprising: Vibration detection mechanism 2 is installed at the bottom of the processing material body 5; The swing stop mechanism 3 is installed on one side of the vibration detection mechanism 2; The vibration detection mechanism 2 includes a top rod 203 disposed at the bottom of the processing material body 5, a top wheel 204 movably disposed at one end of the top rod 203, and a rotating wheel 206 movably disposed on one side of the top wheel 204; The swing stop mechanism 3 includes a top block 301 movably disposed on the top of the rotating wheel 206, a rotating rod 302 movably disposed on the inner wall of the top block 301, and a swing rod 303 movably connected to the outer wall of the rotating rod 302.
[0030] In this embodiment, the vibration detection mechanism 2 and the swing-stop mechanism 3 enable the ultrasonic drill bit body 4 to automatically detect changes in the vibration frequency of the material body 5 during processing. When the vibration frequency of the material body 5 decreases, it indicates a tendency for the material body 5 to become brittle. At this time, the vibration detection mechanism 2 and the swing-stop mechanism 3 will automatically trigger the swing arm 303 to stop swinging. After the swing arm 303 stops swinging, the two push-to-reset switches 6 will reset synchronously, and the ultrasonic generator body 7 will be de-energized, thus stopping the ultrasonic drill bit body 4 from working. The vibration detection mechanism 2 and the swing-stop mechanism 3 form a "temporary protection" mechanism for the equipment, which can effectively prevent the material body 5 from becoming brittle during processing. This further avoids increased production costs and the need for subsequent downtime maintenance due to the brittleness of the material body 5. After the equipment is shut down, the staff can remove the material body 5 for separate processing, thereby reducing the manufacturer's production and maintenance costs and ensuring the processing stability of the material body 5. On this basis, the processing efficiency of the material body 5 is further improved.
[0031] The other end of the top rod 203 is connected to a telescopic rod 201, and a spring 202 is arranged around the outer wall of the telescopic rod 201. The outer wall of the rotating wheel 206 is movably connected to the linkage wheel 205.
[0032] In this embodiment, the "gradual stopping" movement of the swing arm 303 ensures that the equipment does not stop immediately when the "temporary protection" mechanism is triggered. Instead, it gradually stops only after the swing force of the swing arm 303 gradually disappears. This stopping process forms a "buffer," thereby avoiding the phenomenon of "accidental shutdown." During ultrasonic processing, the material body 5 may experience brief vibration fluctuations, such as momentary abrasive grain jamming or temporary interruption of coolant. These fluctuations are not "materials about to crack," but rather minor disturbances during normal processing. If the swing arm 303 "stops momentarily," This brief fluctuation could lead to a sudden loss of thrust – the pendulum 303 immediately stops – the switch disconnects – and the machine stops prematurely, which would actually affect processing efficiency. The gradual stopping of the pendulum 303 is essentially achieved by using the inertia of the pendulum to buffer the movement, which is equivalent to setting an anti-vibration threshold. Only when the vibration amplitude of the material body 5 decreases abnormally and the frequency shifts for a period of time will the pendulum 303 gradually stop after its inertia is exhausted. This ensures that the machine stops only for the “real signs of brittle fracture”, without affecting the continuity of normal processing, and avoids the damage to the equipment caused by “emergency stops”.
[0033] Slide rods 304 are movably installed on both sides of the outer wall of the swing rod 303; One end of the slide bar 304 is movably connected to a roller 305.
[0034] In this embodiment, one end of the push rod 203 can no longer contact the tooth groove of the push wheel 204, and the push wheel 204 will stop rotating without the impact of the push rod 203. After losing the power source for the rotation of the push wheel 204, the swing rod 303 will gradually stop swinging. There is a process when the swing rod 303 stops swinging, which means that the reset switch body 6 will only be reset after the swing rod 303 has completely stopped. Only after the reset switch body 6 has been reset will the ultrasonic generator body 7 be stopped through the circuit. This can form a "buffer" to avoid damage to the ultrasonic machine tool body 1 due to sudden stop, and also prevent the ultrasonic drill bit body 4 from getting stuck in the drilling hole of the material body 5. After the ultrasonic machine tool body 1 is found to be stopped, it means that the material body 5 has started to be processed. There is a "potential for brittle fracture" (when the ultrasonic drill bit body 4 is drilling, the material will generate high-frequency micro-vibration frequency "20-40kHz", amplitude of several micrometers to tens of micrometers. The telescopic rod 201 and spring 202 are not driven by their own elasticity alone, but amplify the force by capturing the "superposition effect" of vibration. The telescopic rod 201 and spring 202 are in close contact with the bottom of the outer wall of the material body 5 being processed. The high-frequency vibration of the material body 5 will cause the telescopic rod 201 and spring 202 to be repeatedly compressed and rebounded. The small displacement of each vibration is accumulated through the telescopic rod 201 to form a continuous thrust. At the same time, the high-frequency characteristics of the vibration will reduce the rotational resistance of the pendulum 303. After overcoming the static friction, the dynamic friction of the pendulum is extremely small, so that even a small continuous thrust can drive the pendulum 303 to rotate).
[0035] One end of the ejector rod 203 is cylindrical, and one end of the ejector rod 203 is aligned with the tooth groove on one side of the outer wall of the ejector wheel 204; The other end of the ejector rod 203 is connected to one end of the telescopic rod 201.
[0036] As in this embodiment, the telescopic rod 201 and the spring 202 at the bottom of the processing material body 5 will also be driven to perform synchronous high-frequency vibration. At the same time, the ejector rod 203 will also be driven to perform high-frequency vibration. When the ejector rod 203 vibrates, one end of it will reciprocally impact the tooth groove of the ejector wheel 204, thereby driving the ejector wheel 204 to rotate. When the ejector wheel 204 rotates, it will drive the linkage wheel 205 to rotate. When the linkage wheel 205 rotates, it will drive the runner 206 to rotate. When the runner 206 rotates, it will drive the top block 301 to swing through the tooth groove. At this time, both ends of the top block 301 will show a movement trajectory of rising on one side and descending on the other side along with the tooth groove when the runner 206 rotates. When the top block 301 swings, it will drive the rotating rod 302 to form a reciprocating rotation. When the rotating rod 302 rotates, it will drive the swing rod 303 to form a swinging movement trajectory (the rotation of the swing rod 303 belongs to low-inertia movement, and its resistance is mainly static friction. The vibration of the processing material body 5 will continuously overcome the static friction. Once the swing rod 303 starts to swing, the dynamic friction can be ignored; the force of the telescopic rod 201 and the spring 202 is not a "single thrust", but a "high-frequency continuous micro-thrust", which is sufficient to drive the lightweight swing rod 303).
[0037] The tooth groove of the ejector wheel 204 is engaged with the tooth groove of the linkage wheel 205; The linkage wheel 205 is movably connected to the runner 206; The ejector wheel 204 and the runner 206 are drivingly connected through the linkage wheel 205.
[0038] As in this embodiment, when the ejector rod 203 vibrates, one end of it will reciprocally impact the tooth groove of the ejector wheel 204, thereby driving the ejector wheel 204 to rotate. When the ejector wheel 204 rotates, it will drive the linkage wheel 205 to rotate. When the linkage wheel 205 rotates, it will drive the runner 206 to rotate. When the runner 206 rotates, it will drive the top block 301 to swing through the tooth groove. At this time, both ends of the top block 301 will show a movement trajectory of rising on one side and descending on the other side along with the tooth groove when the runner 206 rotates. When the top block 301 swings, it will drive the rotating rod 302 to form a reciprocating rotation. When the rotating rod 302 rotates, it will drive the swing rod 303 to form a swinging movement trajectory.
[0039] The front view of the top block 301 is in the shape of "冂"; <In this embodiment, the lever 303 swings to one side, and the outer wall of the lever 303 applies pressure to the roller 305 at one end of the slide bar 304. The roller 305 then drives the slide bar 304 to slide to one side. The slide bar 304 is connected to the outer wall of the press reset switch body 6. At this time, the press reset switch body 6 is driven to press, and the lever 303 swings to the other side. Since the roller 305 at one end of the slide bar 304 no longer has the pressure applied by the outer wall of the lever 303, the press reset switch body 6 will drive the slide bar 304 to reset through its own elastic reset component, so that the roller 305 at one end of the slide bar 304 is always in close contact with one side of the outer wall of the lever 303.
[0041] Both ends of the top block 301 are adapted to the tooth grooves of the rotating wheel 206; Top block 301 is movably connected to rotating rod 302; Rotating rod 302 is movably connected to swing rod 303; The top block 301 and the swing rod 303 are connected by a rotating rod 302.
[0042] In this embodiment, the press reset switch body 6 will drive one side slide bar 304 to reset through its built-in elastic reset component, so that the roller 305 at one end of one side slide bar 304 is always in close contact with one side of the outer wall of the swing arm 303, while the other side slide bar 304 will be "pressed" and "reset when the swing arm 303 swings to one side" as mentioned above. At this time, the two press reset switch bodies 6 will not be pressed at the same time. Since the two press reset switch bodies 6 are connected in parallel, if only one press reset switch body 6 is reset and activated, the ultrasonic generator body 7 will not stop working.
[0043] The three-dimensional view of the lever 303 is Y-shaped; Each slide bar 304 has a roller 305 movably mounted on one end, and the other end of each slide bar 304 is connected to the outer wall of the press reset switch body 6. All rollers 305 are in contact with the outer wall of the rocker arm 303.
[0044] In this embodiment, the rocker arm 303 swings to one side, and the outer wall of the rocker arm 303 applies pressure to the roller 305 at one end of the slide bar 304. The roller 305 then drives the slide bar 304 to slide to one side. The slide bar 304 is connected to the outer wall of the press reset switch body 6. At this time, the press reset switch body 6 is driven to press, and the rocker arm 303 swings to the other side. Since the roller 305 at one end of the slide bar 304 is no longer under pressure from the outer wall of the rocker arm 303, the press reset switch body 6 will drive the slide bar 304 to reset through its own elastic reset component. This ensures that the roller 305 at one end of the slide bar 304 is always in close contact with one side of the outer wall of the rocker arm 303, while the other slide bar 304 will be "pressed" and "reset when the rocker arm 303 swings to one side" as mentioned above.
[0045] Both sides of the swing arm 303 are provided with sliding grooves; The slide rods 304 are all movably connected to the slide grooves provided on both sides of the swing rod 303.
[0046] In this embodiment, when the top wheel 204 rotates, it drives the linkage wheel 205 to rotate. The linkage wheel 205, in turn, drives the rotating wheel 206 to rotate. As the rotating wheel 206 rotates, it drives the top block 301 to swing through its teeth. At this time, the two ends of the top block 301 will follow the toothed grooves of the rotating wheel 206, exhibiting a motion trajectory of rising and falling simultaneously. When the top block 301 swings, it drives the rotating rod 302 to reciprocate. When the rotating rod 302 rotates, it drives the swing rod 303 to swing. When the swing rod 303 swings, the swing rod... When 303 swings to one side, the outer wall of the swing arm 303 applies pressure to the roller 305 at one end of the slide bar 304, and the roller 305 drives the slide bar 304 to slide to one side. The slide bar 304 is connected to the outer wall of the press reset switch body 6. At this time, the press reset switch body 6 will be driven to press, and the swing arm 303 swings to the other side. At this time, since the roller 305 at one end of the slide bar 304 is no longer under pressure from the outer wall of the swing arm 303, the press reset switch body 6 will drive the slide bar 304 to reset through its own elastic reset component.
[0047] The two push-to-reset switch bodies 6 are electrically connected in parallel through a circuit; The two push-to-reset switch bodies 6 are connected in series with the ultrasonic generator body 7 via a circuit.
[0048] In this embodiment, "the reset is performed when the swing arm 303 swings to one side". At this time, the two push reset switch bodies 6 will not be pressed at the same time. Since the two push reset switch bodies 6 are connected in parallel, if only one push reset switch body 6 is reset and activated, the ultrasonic generator body 7 will not stop working.
[0049] Working principle: When using this CNC machine tool for ultrasonic drilling, such as Figure 1 , Figure 2 , Figure 3 - Figure 6 as well as Figure 12 , Figure 13 As shown, the material body 5 is now placed on the ultrasonic machine tool body 1 and is in a ready-to-process state. After processing begins, the operator starts the ultrasonic machine tool body 1 and processes the material body 5 through the ultrasonic drill bit body 4. During the processing of the material body 5: First, the ultrasonic drill bit body 4 impacts the workpiece body 5 at high frequency. This impact causes vibration in the workpiece body 5, and the telescopic rod 201 and spring 202 at the bottom of the workpiece body 5 are also driven to vibrate synchronously at high frequency. Simultaneously, the push rod 203 is also driven to vibrate at high frequency. When the push rod 203 vibrates, one end reciprocates against the tooth groove of the push wheel 204, causing the push wheel 204 to rotate. The rotation of the push wheel 204 drives the linkage wheel 205 to rotate, which in turn drives the rotating wheel 206 to rotate. As the rotating wheel 206 rotates, it drives the push block 301 to swing through the tooth groove. At this time, the two ends of the push block 301 follow the tooth groove of the rotating wheel 206, exhibiting a motion trajectory of rising and falling simultaneously. The swinging of the push block 301 drives the rotating rod 302 to reciprocate, and the rotation of the rotating rod 302 drives the swing rod 303 to swing. When the swing rod 303 swings: When the lever 303 swings to one side, the outer wall of the lever 303 applies pressure to the roller 305 at one end of the slide bar 304. The roller 305 then drives the slide bar 304 to slide to one side. The slide bar 304 is connected to the outer wall of the press reset switch body 6. At this time, the press reset switch body 6 is pressed, and the lever 303 swings to the other side. Since the roller 305 at one end of the slide bar 304 is no longer under pressure from the outer wall of the lever 303, the press reset switch body 6 will reset due to its own elasticity. The component drives one side slide bar 304 to reset, so that the roller 305 at one end of one side slide bar 304 is always in close contact with one side of the outer wall of the swing arm 303. The other side slide bar 304, as mentioned above, will be "pressed" and "reset when the swing arm 303 swings to one side". At this time, the two press reset switch bodies 6 will not be pressed at the same time. Because the two press reset switch bodies 6 are connected in parallel, if only one press reset switch body 6 is reset and activated, the ultrasonic generator body 7 will not stop working.
[0050] When the internal microcracks in the processed material body 5 expand to a certain extent due to continuous "high-frequency impact," the impact can no longer cause the processed material body 5 to "elastically vibrate as a whole," resulting in a sharp decrease in the vibration frequency of the processed material body 5. After the vibration frequency of the processed material body 5 decreases, the vibration fed back by the telescopic rod 201 and the spring 202 will also decrease, causing the moving distance of the push rod 203 to shorten. The moving distance of the push rod 203 changes from the original "short-distance movement" to "slight movement," so that one end of the push rod 203 can no longer touch the tooth groove of the push wheel 204. The push wheel 204 will stop rotating without the impact of the push rod 203. After the power source 4 is rotated, the swing arm 303 will gradually stop swinging. There is a process when the swing arm 303 stops swinging, which means that only after the swing arm 303 has completely stopped swinging will the two push-to-reset switch bodies 6 be reset. Only after the push-to-reset switch bodies 6 are reset will the ultrasonic generator body 7 be stopped through the circuit. This can form a "buffer" to avoid damage to the ultrasonic machine tool body 1 due to sudden stop, and also prevent the ultrasonic drill bit body 4 from getting stuck in the drill hole of the processing material body 5. If the ultrasonic machine tool body 1 is found to have stopped, it means that the processing material body 5 has begun to have a "potential for brittleness". The staff can remove the processing material body 5 for further processing.
[0051] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A CNC machine tool for ultrasonic drilling, comprising an ultrasonic machine tool body (1), an ultrasonic drill bit body (4) disposed inside the ultrasonic machine tool body (1), a processing material body (5) disposed on the outer wall of the ultrasonic machine tool body (1), and a press-to-reset switch body (6) symmetrically disposed on both sides of the bottom of the processing material body (5), and an ultrasonic generator body (7) disposed on one side of the press-to-reset switch body (6), characterized in that, It further includes: A vibration detection mechanism (2) disposed at the bottom of the processing material body (5); A swing stop mechanism (3) disposed on one side of the vibration detection mechanism (2); The vibration detection mechanism (2) includes a push rod (203) disposed at the bottom of the processing material body (5), a top wheel (204) is movably provided at one end of the push rod (203), and a runner (206) is movably provided on one side of the top wheel (204); The swing stop mechanism (3) includes a top block (301) movably provided on the top of the runner (206), a rotating rod (302) is movably provided on the inner wall of the top block (301), and a swing rod (303) is movably connected to the outer wall of the rotating rod (302).
2. The numerical control machine tool for ultrasonic drilling according to claim 1, wherein: The other end of the push rod (203) is connected to a telescopic rod (201), and a spring (202) is disposed around the outer wall of the telescopic rod (201); The outer wall of the runner (206) is movably connected to a linkage wheel (205).
3. The numerical control machine tool for ultrasonic drilling according to claim 1, wherein: Sliding rods (304) are movably provided on both sides of the outer wall of the swing rod (303); One end of the sliding rod (304) is movably connected to a roller (305).
4. The numerical control machine tool for ultrasonic drilling according to claim 2, wherein: One end of the push rod (203) is in a cylindrical shape, and one end of the push rod (203) is aligned with the tooth groove on one side of the outer wall of the top wheel (204); The other end of the push rod (203) is connected to one end of the telescopic rod (201).
5. The numerical control machine tool for ultrasonic drilling according to claim 2, wherein: The tooth groove of the top wheel (204) is engaged with the tooth groove of the linkage wheel (205); The linkage wheel (205) is movably connected to the runner (206); The top wheel (204) and the runner (206) are in a transmission connection through the linkage wheel (205).
6. The numerical control machine tool for ultrasonic drilling according to claim 1, wherein: The front view of the top block (301) is in an "L" shape; The two ends of the top block (301) are asymmetrical; The diameter of one end of the top block (301) is slightly smaller than the diameter of the other end of the top block (301).
7. The numerical control machine tool for ultrasonic drilling according to claim 1, wherein: Both ends of the top block (301) are adapted to the tooth grooves of the runner (206); The top block (301) is movably connected to the rotating rod (302); The rotating rod (302) is movably connected to the swing rod (303); The top block (301) and the swing rod (303) are in a transmission connection through the rotating rod (302).
8. The numerical control machine tool for ultrasonic drilling according to claim 3, wherein: The three-dimensional view of the swing rod (303) is in a "Y" shape; Rollers (305) are movably provided at one end of each of the sliding rods (304), and the other ends of the sliding rods (304) are connected to the outer wall of the pressing and resetting switch body (6); The rollers (305) are all in contact with the outer wall of the rocker arm (303).
9. A CNC machine tool for ultrasonic drilling according to claim 3, characterized in that: The rocker arm (303) has sliding grooves on both sides; The slide rods (304) are all movably connected to the slide grooves provided on both sides of the swing rod (303).
10. A CNC machine tool for ultrasonic drilling according to claim 1, characterized in that: The two press-to-reset switch bodies (6) are electrically connected in parallel via a circuit; The two press-to-reset switch bodies (6) are connected in series with the ultrasonic generator body (7) via a circuit.