Multi-dimensional ultrasonic deep hole cutting equipment

Abstract

The invention relates to the technical field of ultrasonic cutting, in particular to multi-dimensional ultrasonic deep hole cutting equipment which comprises a sleeve and a drill rod, an amplitude-change pole is mounted in the sleeve through an ultrasonic vibration assembly, an annular pipe is fixedly connected to the amplitude-change pole in a sleeving mode, and a rotating ring is rotationally connected to the annular pipe in a sleeving mode; a transmission assembly is arranged at one end of the sleeve, the drill rod is fixedly sleeved with a ratchet gear, rectangular pipes are symmetrically and fixedly installed on the inner ring wall of the rotating ring, trapezoidal blocks are inserted into the two rectangular pipes in a sealed and sliding mode, and first telescopic springs are fixedly installed at one ends of the trapezoidal blocks. Through mutual cooperation of the transmission assembly, the rotating ring, the annular pipe, the ratchet wheel, the rectangular pipe, the first telescopic spring and the trapezoidal block, the drill rod is pre-tightened, so that the drill rod and the amplitude-change pole can be stably connected together, the threaded connection position of the drill rod and the amplitude-change pole is prevented from loosening in the drilling process, and the drilling quality is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of ultrasonic cutting, and in particular to a multi-dimensional ultrasonic deep hole cutting processing equipment. Background Art

[0002] In mechanical processing, deep hole processing has always been a difficult problem. Traditional deep hole processing methods have problems such as low processing accuracy, poor surface quality, and low processing efficiency. With the continuous advancement of science and technology, people have applied ultrasonic technology to deep hole cutting. The high-frequency vibration and highly concentrated energy of ultrasound are transmitted to the cutting tool, so that the material reaches the fatigue limit fracture, thereby completing the cutting. Compared with traditional cutting methods, the cutting force of ultrasonic cutting is very small during the cutting process, which can effectively prevent the deformation and polarization of the workpiece or cutting tool caused by the cutting force, and is widely used in deep hole cutting.

[0003] The existing ultrasonic vibration structure is mainly composed of an ultrasonic generator, a transducer and a horn. The drill rod and the horn are connected by threads. During the cutting process of the drill rod, the horn drives the drill rod to vibrate at a high frequency. However, under the long-term high-frequency vibration of the drill rod and the horn, the threaded connection between the drill rod and the horn will become loose, resulting in the position deviation of the drill rod during the drilling process, affecting the drilling quality. Summary of the invention

[0004] The purpose of the present invention is to solve the following shortcomings in the prior art: the threaded connection between the drill rod and the amplitude transformer will become loose under long-term high-frequency vibration, which will cause the position of the drill rod to deviate during the drilling process, affecting the drilling quality, and a multi-dimensional ultrasonic deep hole cutting processing equipment is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A multi-dimensional ultrasonic deep hole cutting processing equipment, comprising a sleeve and a drill rod, wherein a horn is installed in the sleeve through an ultrasonic vibration assembly, one end of the horn is slidably inserted in the sleeve, the other end of the horn is provided with a thread groove, one end of the drill rod is provided with a thread, and one end of the drill rod is threadedly inserted in the thread groove; An annular tube is fixedly sleeved on the amplitude changing rod, a rotating ring is rotatably sleeved on the annular tube, a transmission assembly for driving the rotating ring to rotate is provided at one end of the sleeve, a ratchet gear is fixedly sleeved on the drill rod, the ratchet gear is located at the inner ring of the rotating ring, rectangular tubes are symmetrically fixedly installed on the inner ring wall of the rotating ring, trapezoidal blocks are sealed and slidably inserted in the two rectangular tubes, a first telescopic spring is fixedly installed on one end of the trapezoidal block, one end of the first telescopic spring away from the trapezoidal block is fixedly connected to the inner ring wall of the rotating ring, and the inclined surface of the trapezoidal block is in sliding contact with the ratchet teeth of the ratchet gear.

[0006] As a preferred scheme, a rectangular hole is formed through the side of the amplitude changing rod, and a movable hole connected to the rectangular hole is vertically formed in the threaded groove, and a movable rod is vertically and sealingly slidably installed in the movable hole, and a top block is fixedly installed at one end of the movable rod located in the threaded groove, and a second telescopic spring is sleeved on the movable rod, and the two ends of the second telescopic spring are respectively fixedly connected to the top block and the inner wall of the threaded groove, and a connecting pipe is fixedly installed at one end of the rectangular hole, and the end of the connecting pipe away from the amplitude changing rod is connected to the annular tube, and an inflation component for inflating the annular tube is provided in the rectangular tube, and an air outlet pipe connected to the interior is fixedly installed on the annular tube, and a sealing plate is installed on the upper end of the air outlet pipe through a mounting component, and a pushing component for pushing the sealing plate to move is provided in the rectangular hole.

[0007] As a preferred embodiment, the inner ring wall of the rotating ring is in sealed rotational contact with the outer ring wall of the annular tube, and the inflation component includes a plurality of circular holes opened on the side of the annular tube, a U-shaped hole opened on the inner ring wall of the rotating ring, and a pressure relief pipe fixedly installed on the lower surface of the rectangular tube, one end of the pressure relief pipe is connected to the interior of the rectangular tube, and the plurality of circular holes are circumferentially arranged on the outer ring wall of the annular tube, one end of the U-shaped hole is connected to one end of the rectangular tube, and the other end is located at the same horizontal height of the plurality of circular holes, a first one-way valve is fixedly installed in the U-shaped hole, and a second one-way valve is fixedly installed in the pressure relief pipe.

[0008] As a preferred solution, the first one-way valve only allows gas to enter the U-shaped hole from the rectangular tube, and the second one-way valve only allows gas to enter the rectangular tube from the outside.

[0009] As a preferred solution, the mounting assembly comprises a U-shaped frame fixedly mounted on the air outlet pipe, the U-shaped frame is symmetrically provided with slide grooves, and the two sides of the sealing plate slide in the two slide grooves respectively.

[0010] As a preferred solution, the pushing assembly includes a push plate horizontally slidably installed in the rectangular hole through a spring rod, a rectangular plate installed on the push plate through an elastic assembly, and an L-shaped rod fixedly installed on the rectangular plate, one end of the L-shaped rod passes through the rectangular hole and is fixedly connected to the upper surface of the sealing plate.

[0011] As a preferred solution, the elastic component includes two L-shaped support rods symmetrically fixedly installed on the push plate, two sliding rods horizontally fixedly installed on the two support rods and two third telescopic springs respectively sleeved on the two sliding rods. The rectangular plate is symmetrically provided with sliding holes, and the two sliding rods are respectively slidably inserted into the two sliding holes. The two ends of the third telescopic spring are respectively fixedly connected to the support rods and the rectangular plate.

[0012] As a preferred solution, a whistle tube is fixedly mounted on one end of the rectangular hole away from the connecting tube, and a whistle hole is formed on the upper surface of the whistle tube.

[0013] As a preferred embodiment, the ultrasonic vibration assembly includes an ultrasonic generator fixedly installed in the sleeve and a transducer fixedly installed in the sleeve, the transducer is electrically connected to the ultrasonic generator, and one end of the amplitude rod away from the thread groove is fixedly connected to the transducer.

[0014] As a preferred solution, the transmission assembly includes a plurality of vertical rods vertically fixedly mounted on the lower end of the sleeve and a plurality of support rods rotatably mounted on the lower ends of the plurality of vertical rods, and a plurality of circumferentially arranged inclined grooves are provided on the upper surface of the rotating ring.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. During drilling, the amplitude transformer drives the drill rod to vibrate at high frequency. During this process, the transmission assembly, rotating ring, annular tube, ratchet gear, rectangular tube, first telescopic spring and trapezoidal block cooperate with each other to produce a relative rotation trend between the drill rod and the amplitude transformer, which pre-tightens the drill rod and enables the drill rod and the amplitude transformer to be stably connected together, avoiding loosening of the threaded connection between the drill rod and the amplitude transformer during the drilling process, preventing deviation of the drilling position, and effectively improving the drilling quality.

[0016] 2. When processing some workpieces with higher hardness, the force between the drill rod and the amplitude rod is greater. At this time, through the cooperation of the inflation component, the annular tube, the rectangular tube and the air outlet pipe, air can be continuously filled into the annular tube. When looseness occurs between the drill rod and the amplitude rod, the gas will push the sealing plate to move through the pushing component, reducing the exhaust volume of the air outlet pipe. When the gas filling rate remains unchanged, the pressure inside the annular tube and the rectangular tube increases. At this time, the force of the trapezoidal block on the ratchet gear increases, thereby increasing the pre-tightening force on the drill rod and making the drill rod and the amplitude rod more stable.

[0017] 3. When processing some workpieces with higher hardness, when there is looseness between the drill rod and the amplitude rod, under air pressure, the push plate and the rectangular plate are separated and staggered from each other, and then through the cooperation of the whistle tube and the whistle hole, a sound is produced when the gas passes through the whistle tube, which immediately reminds the staff that there is looseness between the drill rod and the amplitude rod, and processing needs to be stopped at this time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of a three-dimensional cross-sectional structure of a multi-dimensional ultrasonic deep hole cutting processing device proposed by the present invention; Figure 2 for Figure 1 The enlarged structural diagram at A in the middle; Figure 3It is a schematic diagram of a three-dimensional partial cross-sectional structure of a multi-dimensional ultrasonic deep hole cutting processing equipment proposed by the present invention; Figure 4 It is a schematic diagram of a three-dimensional partial cross-section structure of a drill pipe and a horn; Figure 5 for Figure 4 The enlarged structural diagram at B in the middle; Figure 6 It is a three-dimensional structural schematic diagram of a drill rod and a ratchet gear; Figure 7 is a schematic diagram of a three-dimensional cross-sectional structure of a horn; Figure 8 It is a schematic diagram of a partial three-dimensional cross-sectional structure of a rotating ring, annular tube, rectangular tube, trapezoidal block and inflatable component; Fig. 9 It is a schematic diagram of a partial three-dimensional cross-sectional structure of a rectangular hole, a whistle tube, a push assembly, a sealing plate and an air outlet pipe; Fig.10 for Fig. 9 Enlarged structural diagram at point C in the middle.

[0019] In the figure: 1 sleeve, 2 drill rod, 3 amplitude rod, 4 annular tube, 5 rotating ring, 6 ratchet gear, 7 rectangular tube, 8 trapezoidal block, 9 first telescopic spring, 10 rectangular hole, 11 moving rod, 12 top block, 13 second telescopic spring, 14 connecting pipe, 15 outlet pipe, 16 sealing plate, 17 round hole, 18 U-shaped hole, 19 pressure relief pipe, 20 U-shaped frame, 21 push plate, 22 rectangular plate, 23 L-shaped rod, 24 support rod, 25 slide rod, 26 third telescopic spring, 27 whistle pipe, 28 whistle hole, 29 ultrasonic generator, 30 transducer, 31 vertical rod, 32 support rod, 33 inclined groove, 34 spring rod. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Reference Figure 1-Figure 10 A multi-dimensional ultrasonic deep hole cutting processing equipment includes a sleeve 1 and a drill rod 2. A horn 3 is installed in the sleeve 1 through an ultrasonic vibration component. One end of the horn 3 is slidably inserted in the sleeve 1, and the other end of the horn 3 is provided with a thread groove. One end of the drill rod 2 is provided with a thread, and one end of the drill rod 2 is threadedly inserted in the thread groove. The ultrasonic vibration component includes an ultrasonic generator 29 fixedly installed in the sleeve 1 and a transducer 30 fixedly installed in the sleeve 1. The transducer 30 is electrically connected to the ultrasonic generator 29, and the end of the horn 3 away from the thread groove is fixedly connected to the transducer 30.

[0022] The threaded end of the drill rod 2 is threadedly inserted into the thread groove formed at one end of the horn 3, and the sleeve 1 is installed with the cutting processing equipment body (the cutting processing equipment body is the prior art and is not shown in the figure). When drilling, the frequency and amplitude of the ultrasonic vibration component are adjusted. After starting the equipment, the ultrasonic generator 29 and the transducer 30 will cause the horn 3 to generate multi-dimensional ultrasonic vibration and transmit it to the drill rod 2. The drill rod 2 performs deep hole cutting under the action of the multi-dimensional ultrasonic vibration. The multi-dimensional ultrasonic vibration can reduce the cutting force and make the contact between the drill rod 2 and the workpiece more stable and uniform, which effectively reduces the vibration and deformation during the processing, thereby The processing accuracy is greatly improved. Compared with traditional deep hole processing equipment, it can achieve higher dimensional accuracy and shape accuracy, meet the processing needs of high-precision parts, and at the same time, under the action of multi-dimensional ultrasonic vibration, the cutting process is smoother, and the drill rod 2 cuts the workpiece surface more delicately, which significantly reduces the surface roughness after processing and makes the surface smoother, improves the surface quality and appearance quality of the parts, reduces the workload and cost of subsequent surface treatment, and multi-dimensional ultrasonic vibration can accelerate the cutting process and increase the cutting speed. With the assistance of vibration, the drill rod 2 can cut into the workpiece more easily, reduces cutting resistance, and thus improves processing efficiency.

[0023] An annular tube 4 is fixedly sleeved on the amplitude changing rod 3, and a rotating ring 5 is rotatably sleeved on the annular tube 4. A transmission assembly for driving the rotating ring 5 to rotate is provided at one end of the sleeve 1. A ratchet gear 6 is fixedly sleeved on the drill rod 2. The ratchet gear 6 is located at the inner ring of the rotating ring 5. Rectangular tubes 7 are symmetrically fixedly installed on the inner ring wall of the rotating ring 5. Trapezoidal blocks 8 are sealed and slidably inserted in the two rectangular tubes 7. A first telescopic spring 9 is fixedly installed on one end of the trapezoidal block 8. The end of the first telescopic spring 9 away from the trapezoidal block 8 is fixedly connected to the inner ring wall of the rotating ring 5, and the inclined surface of the trapezoidal block 8 is in sliding contact with the ratchet teeth of the ratchet gear 6.

[0024] The transmission assembly includes a plurality of vertical rods 31 vertically fixedly mounted on the lower end of the sleeve 1 and a plurality of support rods 32 rotatably mounted on the lower ends of the plurality of vertical rods 31 . A plurality of circumferentially arranged inclined grooves 33 are formed on the upper surface of the rotating ring 5 .

[0025] Under the action of multi-dimensional ultrasonic vibration, the amplitude transformer 3 and the sleeve 1 will continuously move relative to each other, so that the rotating ring 5 and the sleeve 1 will move relative to each other, and the support rod 32 moves away from the vertical rod 31 to drive one end to contact the inclined groove 33 provided on the upper surface of the rotating ring 5. When the distance between the rotating ring 5 and the sleeve 1 becomes smaller, the support rod 32 will rotate on the vertical rod 31, and at the same time, the support rod 32 will apply a horizontal thrust to the rotating ring 5 through the inclined groove 33, and the rotating ring 5 will rotate on the annular tube 4 under the action of the thrust. When the distance between the rotating ring 5 and the sleeve 1 increases, the support rod 32 will rotate in the vertical direction. At the same time, the length of the support rod 32 is greater than the distance between the rotating ring 5 and the sleeve 1 for relative movement. Therefore, when the distance between the rotating ring 5 and the sleeve 1 is the largest, the support rod 32 is still in an inclined state. When the support rod 32 pushes the rotating ring 5 to rotate, the inclined groove 33 can increase the friction between one end of the support rod 32 and the upper surface of the rotating ring 5. At the same time, the inclined groove 33 can play a guiding role, making it easier for the support rod 32 to drive the rotating ring 5 to rotate.

[0026] When the rotating ring 5 rotates on the annular tube 4, it will drive the two rectangular tubes 7 to rotate around the drill rod 2. The trapezoidal block 8 is sealed and slidably installed in the rectangular tube 7 by the first telescopic spring 9, and the inclined surface end extends out of the rectangular tube 7. The two trapezoidal blocks 8 will rotate with the two rectangular tubes 7. Since the inclined surface of the trapezoidal block 8 is in sliding contact with the ratchet gear 6, when the trapezoidal block 8 is in contact with the ratchet gear 6, the trapezoidal block 8 will move into the rectangular tube 7 under the action of the inclined surface, and the first telescopic spring 9 is compressed. At the same time, the internal pressure of the rectangular tube 7 increases. When the trapezoidal block 8 moves, a reaction force is generated on the ratchet gear 6, and a force is generated on the drill rod 2 through the ratchet gear 6 to make it rotate. This force is the same as the direction of tightening the drill rod 2 in the thread groove, thereby pre-tightening the drill rod 2, so that the drill rod 2 and the amplitude transformer 3 can be stably connected together, avoiding loosening of the threaded connection between the drill rod 2 and the amplitude transformer 3 during the drilling process, preventing deviation of the drilling position, and effectively improving the drilling quality.

[0027] A rectangular hole 10 is provided through the side of the amplitude converter 3, and a movable hole connected to the rectangular hole 10 is vertically provided in the thread groove, and a movable rod 11 is vertically and sealingly slidably installed in the movable hole, and a top block 12 is fixedly installed at one end of the movable rod 11 located in the thread groove, and a second telescopic spring 13 is sleeved on the movable rod 11, and the two ends of the second telescopic spring 13 are respectively fixedly connected to the top block 12 and the inner wall of the thread groove, a connecting pipe 14 is fixedly installed at one end of the rectangular hole 10, and the end of the connecting pipe 14 away from the amplitude converter 3 is connected to the annular tube 4, an inflation component for inflating the annular tube 4 is provided in the rectangular tube 7, an air outlet pipe 15 connected to the inside is fixedly installed on the annular tube 4, a sealing plate 16 is installed on the upper end of the air outlet pipe 15 through a mounting component, and a pushing component for pushing the sealing plate 16 to move is provided in the rectangular hole 10.

[0028] The upper end of the moving rod 11 is sealed and inserted in the rectangular hole 10. When one end of the drill rod 2 is threadedly installed in the thread groove, the upper end of the drill rod 2 contacts the top block 12. During the installation process, the top block 12 is driven to move into the thread groove, and the second telescopic spring 13 is compressed. One end of the moving rod 11 is inserted into the rectangular hole 10. When one end of the drill rod 2 is completely threaded in the thread groove, one end of the moving rod 11 is just completely inserted into the rectangular hole 10 to block the rectangular hole 10. If there is looseness between the drill rod 2 and the amplitude rod 3, and one end of the drill rod 2 moves out of the thread hole for a short distance, under the action of the elastic force of the second telescopic spring 13, the moving rod 11 moves in the direction of the thread groove to release the blockage of the rectangular hole 10.

[0029] The inner ring wall of the rotating ring 5 is in sealed rotational contact with the outer ring wall of the annular tube 4. The inflation component includes a plurality of circular holes 17 opened on the side of the annular tube 4, a U-shaped hole 18 opened on the inner ring wall of the rotating ring 5, and a pressure relief pipe 19 fixedly installed on the lower surface of the rectangular tube 7. One end of the pressure relief pipe 19 is connected to the interior of the rectangular tube 7. A plurality of circular holes 17 are circumferentially arranged on the outer ring wall of the annular tube 4. One end of the U-shaped hole 18 is connected to one end of the rectangular tube 7, and the other end is located at the same horizontal height of the plurality of circular holes 17. A first one-way valve is fixedly installed in the U-shaped hole 18, and a second one-way valve is fixedly installed in the pressure relief pipe 19. The first one-way valve only allows gas to enter the U-shaped hole 18 from the rectangular tube 7, and the second one-way valve only allows gas to enter the rectangular tube 7 from the outside.

[0030] One end of the U-shaped hole 18 is connected with the rectangular tube 7. When the rotating ring 5 rotates, the other end of the U-shaped hole 18 will be intermittently connected with multiple circular holes 17. Therefore, during the rotation of the rotating ring 5, the annular tube 4 and the rectangular tube 7 are connected through the U-shaped hole 18. When the rotating ring 5 drives the trapezoidal block 8 to contact the ratchet gear 6, it will drive the trapezoidal block 8 to continuously move in the rectangular tube 7. A closed space is formed between the trapezoidal block 8, the rectangular tube 7 and the rotating ring 5. When the trapezoidal block 8 moves toward the first telescopic spring 9, the air in the rectangular tube 7 will be filled into the annular tube 4 through the U-shaped hole 18. When the trapezoidal block 8 moves away from the first telescopic spring 9, the outside air will be filled into the rectangular tube 7 through the pressure relief pipe 19. The rectangular hole 10 is connected with the annular tube 4 through the connecting pipe 14. When one end of the moving rod 11 blocks the rectangular hole 10, the air filled in the annular tube 4 will be discharged through the air outlet pipe 15.

[0031] The mounting assembly includes a U-shaped frame 20 fixedly mounted on the air outlet pipe 15, and the U-shaped frame 20 is symmetrically provided with slide grooves. The two sides of the sealing plate 16 slide in the two slide grooves respectively. The sealing plate 16 is installed at one end of the air outlet pipe 15 through the U-shaped frame 20. The size of the air outlet of the air outlet pipe 15 can be controlled by moving the sealing plate 16.

[0032] The pushing assembly includes a push plate 21 horizontally slidably installed in the rectangular hole 10 through a spring rod 34, a rectangular plate 22 installed on the push plate 21 through an elastic assembly, and an L-shaped rod 23 fixedly installed on the rectangular plate 22. One end of the L-shaped rod 23 passes through the rectangular hole 10 and is fixedly connected to the upper surface of the sealing plate 16. The push plate 21 and the rectangular plate 22 are fitted together under the action of the elastic assembly, thereby blocking the rectangular hole 10. When looseness occurs between the drill rod 2 and the amplitude rod 3, one end of the moving rod 11 moves downward. When the push plate 21 moves, it will drive the sealing plate 16 to move through the L-shaped rod 23. The sealing plate 16 will reduce the air outlet of the air outlet pipe 15, and reduce the exhaust volume of the air outlet pipe 15. When the gas filling rate remains unchanged, the pressure inside the annular tube 4 and the rectangular tube 7 increases, and the resistance of the trapezoidal block 8 to move in the direction of the first telescopic spring 9 is greater. At this time, the trapezoidal block 8 has a greater force on the ratchet gear 6, thereby increasing the preload force on the drill rod 2.

[0033] The elastic component includes two L-shaped support rods 24 symmetrically fixedly mounted on the push plate 21, two sliding rods 25 horizontally fixedly mounted on the two support rods 24, and two third telescopic springs 26 respectively sleeved on the two sliding rods 25. The rectangular plate 22 is symmetrically provided with sliding holes, and the two sliding rods 25 are respectively slidably inserted into the two sliding holes. The two ends of the third telescopic spring 26 are respectively fixedly connected to the support rods 24 and the rectangular plate 22. A whistle tube 27 is fixedly mounted on one end of the rectangular hole 10 away from the connecting tube 14, and a whistle hole 28 is provided on the upper surface of the whistle tube 27.

[0034] The rectangular plate 22 can move horizontally on the two sliding rods 25. Under the action of the elastic force of the third telescopic spring 26, the rectangular plate 22 tends to move toward the push plate 21, so that the rectangular plate 22 is in contact with the push plate 21. When the sealing plate 16 completely closes the air outlet pipe 15, the push plate 21 moves to one end of the whistle tube 27. When the push plate 21 is separated from the rectangular plate 22, the rectangular plate 22 moves to just below the whistle hole 28. At this time, when air passes through the whistle tube 27, the airflow will be disturbed and make a sound under the action of the rectangular plate 22 and the whistle hole 28.

[0035] In the present invention, when drilling a workpiece, the equipment is started, and the horn 3 and the drill rod 2 are driven to rotate by the ultrasonic vibration component. Under high-frequency vibration, the drill rod 2 drives the rotating ring 5 to vibrate at a high frequency through the annular tube 4. At this time, the distance between the rotating ring 5 and the sleeve 1 is constantly changing. Under the action of the transmission component, the rotating ring 5 can be driven to rotate on the annular tube 4. When the rotating ring 5 rotates on the annular tube 4, it will drive the two rectangular tubes 7 to rotate around the drill rod 2. The two trapezoidal blocks 8 will rotate together with the two rectangular tubes 7. When the trapezoidal blocks 8 and the ratchet gear 6, the trapezoidal block 8 will move into the rectangular tube 7 under the action of the inclined surface, the first telescopic spring 9 will be compressed, the trapezoidal block 8 will generate a reaction force on the ratchet gear 6, and the ratchet gear 6 will generate a force to rotate the drill rod 2. This force is in the same direction as the direction of tightening the drill rod 2 in the thread groove, thereby pre-tightening the drill rod 2, so that the drill rod 2 and the amplitude transformer 3 can be stably connected together, avoiding loosening of the threaded connection between the drill rod 2 and the amplitude transformer 3 during the drilling process, preventing deviation of the drilling position, and effectively improving the drilling quality.

[0036] A closed space is formed among the trapezoidal block 8, the rectangular tube 7 and the rotating ring 5. When the trapezoidal block 8 moves toward the first telescopic spring 9, the air in the rectangular tube 7 is filled into the annular tube 4. When the trapezoidal block 8 moves away from the first telescopic spring 9, the outside air is filled into the rectangular tube 7 through the pressure relief pipe 19. As a result, the trapezoidal block 8 continuously moves back and forth in the rectangular tube 7, and the inside of the annular tube 4 is continuously inflated. The rectangular hole 10 is connected to the annular tube 4 through the connecting pipe 14. When one end of the moving rod 11 blocks the rectangular hole 10, the air filled in the annular tube 4 is discharged through the air outlet pipe 15 to avoid excessive pressure in the annular tube 4.

[0037] When processing some workpieces with higher hardness, the force between the drill rod 2 and the amplitude rod 3 is greater. At this time, under the pre-tightening of the trapezoidal block 8 and the ratchet gear 6, there is still a possibility of looseness between the drill rod 2 and the amplitude rod 3. When looseness occurs between the drill rod 2 and the amplitude rod 3, under the action of the elastic force of the second telescopic spring 13, the moving rod 11 moves away from the rectangular hole 10, and the obstruction of the rectangular hole 10 is released. At this time, the gas will blow to the push plate 21 and the rectangular plate 22. The push plate 21 and the rectangular plate 22 are in contact with each other under the action of the elastic force of the third telescopic spring 26, thereby pushing the push plate 21 and the rectangular plate 22 to the torque. When one end of the annular hole 10 moves, the push plate 21 will drive the sealing plate 16 to move through the L-shaped rod 23 to block one end of the air outlet pipe 15. At this time, the gas in the annular tube 4 cannot be discharged, and as the gas is continuously filled in, the air pressure in the annular tube 4 will gradually rise. Under the action of the air pressure, the resistance of the trapezoidal block 8 to the movement of the first telescopic spring 9 will become larger, and when the trapezoidal block 8 contacts the ratchet gear 6, the force of the trapezoidal block 8 on the ratchet gear 6 becomes larger, thereby increasing the pre-tightening force on the drill rod 2, so that the drill rod 2 can be tightened on the amplitude rod 3 again, and the stability between the drill rod 2 and the amplitude rod 3 is improved.

[0038] After tightening, one end of the moving rod 11 will be fully inserted into the rectangular hole 10 again to block the rectangular hole 10. At this time, under the action of the elastic force of the spring rod 34, the push plate 21 and the rectangular plate 22 will be driven to move back and the air outlet pipe 15 will be opened through the L-shaped rod 23.

[0039] When processing some workpieces with higher hardness, when the enhanced pre-tightening force cannot overcome the force between the drill rod 2 and the amplitude transformer 3, the moving rod 11 cannot block the rectangular hole 10 again. At this time, since one end of the air outlet pipe 15 is blocked by the sealing plate 16, the pressure in the annular tube 4 will increase again. Through the connecting tube 14, the pressure in the rectangular hole 10 will also increase. When the pressure acting on the rectangular plate 22 is greater than the elastic force of the third telescopic spring 26, the rectangular plate 22 will be driven to slide on the two sliding rods 25. The third telescopic spring 26 is compressed, and the rectangular plate 22 is separated and staggered from the push plate 21. At this time, the rectangular plate 22 just moves to the bottom of the whistle hole 28, and a whistle structure is formed between the push plate 21, the whistle tube 27, the rectangular plate 22 and the whistle hole 28. Therefore, when gas passes through the whistle tube 27, a sound will be generated, which can remind the staff at the first time that there is looseness between the drill rod 2 and the amplitude transformer 3, and the processing needs to be stopped at this time.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multi-dimensional ultrasonic deep hole cutting device, comprising a sleeve (1) and a drill rod (2), characterized in that: A horn (3) is installed in the sleeve (1) via an ultrasonic vibration assembly, one end of the horn (3) is slidably inserted in the sleeve (1), the other end of the horn (3) is provided with a thread groove, one end of the drill rod (2) is provided with a thread, and one end of the drill rod (2) is threadedly inserted in the thread groove; An annular tube (4) is fixedly sleeved on the amplitude change rod (3), a rotating ring (5) is rotatably sleeved on the annular tube (4), a transmission assembly for driving the rotating ring (5) to rotate is provided at one end of the sleeve (1), a ratchet gear (6) is fixedly sleeved on the drill rod (2), the ratchet gear (6) is located on the inner ring of the rotating ring (5), rectangular tubes (7) are symmetrically fixedly installed on the inner ring wall of the rotating ring (5), trapezoidal blocks (8) are sealed and slidably inserted in the two rectangular tubes (7), a first telescopic spring (9) is fixedly installed at one end of the trapezoidal block (8), one end of the first telescopic spring (9) away from the trapezoidal block (8) is fixedly connected to the inner ring wall of the rotating ring (5), and the inclined surface of the trapezoidal block (8) is in sliding contact with the ratchet teeth of the ratchet gear (6).

2. The multi-dimensional ultrasonic deep hole cutting equipment according to claim 1, characterized in that: A rectangular hole (10) is formed through the side of the amplitude changing rod (3), a moving hole connected to the rectangular hole (10) is formed vertically in the thread groove, a moving rod (11) is vertically and sealingly slidably installed in the moving hole, a top block (12) is fixedly installed at one end of the moving rod (11) located in the thread groove, a second telescopic spring (13) is sleeved on the moving rod (11), and two ends of the second telescopic spring (13) are respectively fixedly connected to the top block (12) and the inner wall of the thread groove, and the rectangular hole (10) is provided with a plurality of movable rods (11). A connecting pipe (14) is fixedly mounted on one end of the rectangular tube (7), and an end of the connecting pipe (14) away from the amplitude transformer (3) is connected to the annular tube (4). An inflating assembly for inflating the annular tube (4) is provided in the rectangular tube (7). An air outlet pipe (15) connected to the inside of the annular tube (4) is fixedly mounted on the annular tube (4). A sealing plate (16) is mounted on the upper end of the air outlet pipe (15) via a mounting assembly. A pushing assembly for pushing the sealing plate (16) to move is provided in the rectangular hole (10).

3. The multi-dimensional ultrasonic deep hole cutting equipment according to claim 2, characterized in that: The inner ring wall of the rotating ring (5) is in sealing rotational contact with the outer ring wall of the annular tube (4); the inflation component comprises a plurality of circular holes (17) opened on the side of the annular tube (4), a U-shaped hole (18) opened on the inner ring wall of the rotating ring (5), and a pressure relief pipe (19) fixedly mounted on the lower surface of the rectangular tube (7); one end of the pressure relief pipe (19) is connected to the interior of the rectangular tube (7); the plurality of circular holes (17) are circumferentially arranged on the outer ring wall of the annular tube (4); one end of the U-shaped hole (18) is connected to one end of the rectangular tube (7); the other end is located at the same horizontal height as the plurality of circular holes (17); a first one-way valve is fixedly mounted in the U-shaped hole (18); and a second one-way valve is fixedly mounted in the pressure relief pipe (19).

4. The multi-dimensional ultrasonic deep hole cutting equipment according to claim 3, characterized in that: The first one-way valve only allows gas to enter the U-shaped hole (18) from the rectangular tube (7), and the second one-way valve only allows gas to enter the rectangular tube (7) from the outside.

5. The multi-dimensional ultrasonic deep hole cutting equipment according to claim 2, characterized in that: The mounting assembly comprises a U-shaped frame (20) fixedly mounted on the air outlet pipe (15), wherein the U-shaped frame (20) is symmetrically provided with sliding grooves, and the two sides of the sealing plate (16) slide in the two sliding grooves respectively.

6. The multi-dimensional ultrasonic deep hole cutting equipment according to claim 2, characterized in that: The pushing assembly comprises a push plate (21) horizontally slidably mounted in the rectangular hole (10) via a spring rod (34), a rectangular plate (22) mounted on the push plate (21) via an elastic assembly, and an L-shaped rod (23) fixedly mounted on the rectangular plate (22), one end of the L-shaped rod (23) passing through the rectangular hole (10) and fixedly connected to the upper surface of the sealing plate (16).

7. The multi-dimensional ultrasonic deep hole cutting equipment according to claim 6, characterized in that: The elastic component comprises two L-shaped support rods (24) symmetrically fixedly mounted on the push plate (21), two slide rods (25) respectively fixedly mounted horizontally on the two support rods (24), and two third telescopic springs (26) respectively sleeved on the two slide rods (25); the rectangular plate (22) is symmetrically provided with slide holes, the two slide rods (25) are respectively slidably inserted into the two slide holes, and the two ends of the third telescopic spring (26) are respectively fixedly connected to the support rods (24) and the rectangular plate (22).

8. The multi-dimensional ultrasonic deep hole cutting equipment according to claim 6, characterized in that: A whistle pipe (27) is fixedly mounted on one end of the rectangular hole (10) away from the connecting pipe (14), and a whistle hole (28) is formed on the upper surface of the whistle pipe (27).

9. The multi-dimensional ultrasonic deep hole cutting equipment according to claim 1, characterized in that: The ultrasonic vibration assembly comprises an ultrasonic generator (29) fixedly mounted in the sleeve (1) and a transducer (30) fixedly mounted in the sleeve (1); the transducer (30) is electrically connected to the ultrasonic generator (29); and an end of the amplitude transformer (3) away from the thread groove is fixedly connected to the transducer (30).

10. The multi-dimensional ultrasonic deep hole cutting equipment according to claim 1, characterized in that: The transmission assembly comprises a plurality of vertical rods (31) vertically fixedly mounted on the lower end of the sleeve (1) and a plurality of support rods (32) rotatably mounted on the lower ends of the plurality of vertical rods (31). The upper surface of the rotating ring (5) is provided with a plurality of circumferentially arranged inclined grooves (33).

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