CN110977326B - Ultrasonic micro-pit processing device based on guide type force transmission structure - Google Patents
Ultrasonic micro-pit processing device based on guide type force transmission structure Download PDFInfo
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- CN110977326B CN110977326B CN201911331639.7A CN201911331639A CN110977326B CN 110977326 B CN110977326 B CN 110977326B CN 201911331639 A CN201911331639 A CN 201911331639A CN 110977326 B CN110977326 B CN 110977326B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P9/00—Treating or finishing surfaces mechanically, with or without calibrating, primarily to resist wear or impact, e.g. smoothing or roughening turbine blades or bearings; Features of such surfaces not otherwise provided for, their treatment being unspecified
- B23P9/02—Treating or finishing by applying pressure, e.g. knurling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/0207—Driving circuits
- B06B1/0215—Driving circuits for generating pulses, e.g. bursts of oscillations, envelopes
Abstract
The invention relates to an ultrasonic micro-pit processing device, in particular to an ultrasonic micro-pit processing device based on a guide type force transmission structure. The invention solves the problems of limited application range and low processing precision of the existing ultrasonic micro-pit processing device. The ultrasonic micro-pit processing device based on the guide type force transmission structure comprises a main body mechanism and a centering support mechanism; the main body mechanism comprises a first pipe shell, an end cover, a cooling fan, an ultrasonic transducer, a full-thread stud, a composite amplitude transformer, a flange plate, a second pipe shell, a box shell, a force transmission rod, a sliding block seat, a knife handle, a knife head, a distance adjusting nut, a pin shaft and a guide ring; the centering support mechanism comprises a support shaft, a support disc, a stud, an adjusting nut, a U-shaped wheel carrier, a compression spring, a roller shaft, a locking nut and a support roller. The invention is suitable for processing cylinder sleeve type friction pairs.
Description
Technical Field
The invention relates to an ultrasonic micro-pit processing device, in particular to an ultrasonic micro-pit processing device based on a guide type force transmission structure.
Background
When a cylinder sleeve type friction pair is processed, micro pits (micro pits) with certain sizes, shapes and arrangements are generally required to be processed on the inner side surface of the cylinder sleeve so as to improve the surface tribological performance of the friction pair, reduce the friction and the abrasion of the friction pair, and improve the service performance and the service life of the friction pair. In the prior art, the ultrasonic micro-pit processing device has the following problems: firstly, due to the fact that a direct-connection type force transmission structure is adopted, the existing ultrasonic micro-pit machining device has the problem that the radial size is too large, and therefore the existing ultrasonic micro-pit machining device is not suitable for machining a small-cylinder-diameter cylinder sleeve, and the application range of the existing ultrasonic micro-pit machining device is limited. Secondly, because of adopting the cantilever structure, the current ultrasonic micro-pit processing device can be influenced by the deflection in the processing process, thereby causing the processing process to be unstable and causing the processing precision to be low. Based on the technical scheme, the ultrasonic micro-pit processing device based on the guide type force transmission structure is needed to be invented to solve the problems of limited application range and low processing precision of the conventional ultrasonic micro-pit processing device.
Disclosure of Invention
The invention provides an ultrasonic micro-pit processing device based on a guide type force transmission structure, aiming at solving the problems of limited application range and low processing precision of the conventional ultrasonic micro-pit processing device.
The invention is realized by adopting the following technical scheme:
the ultrasonic micro-pit processing device based on the guide type force transmission structure comprises a main body mechanism and a centering support mechanism;
the main body mechanism comprises a first pipe shell, an end cover, a cooling fan, an ultrasonic transducer, a full-thread stud, a composite amplitude transformer, a flange plate, a second pipe shell, a box shell, a force transmission rod, a sliding block seat, a knife handle, a knife head, a distance adjusting nut, a pin shaft and a guide ring;
the rear part of the side wall of the first tube shell is provided with a plurality of radiating strip holes which are arranged at equal intervals along the circumferential direction in a penetrating way; the end cover is covered on the rear end opening of the first pipe shell; the heat radiation fan is arranged on the end cover in a penetrating way; the ultrasonic transducer is positioned in the inner cavity of the first tube shell, and the center line of the ultrasonic transducer is superposed with the center line of the first tube shell; a first blind screw hole is formed in the center of the front end face of the ultrasonic transducer; the rear end of the full-thread stud is screwed in the first blind screw hole; the composite amplitude transformer penetrates through the front end opening of the first pipe shell; a second blind screw hole is formed in the center of the rear end face of the composite amplitude transformer; the composite amplitude transformer is screwed on the full-thread stud through a second blind screw hole, and the rear end face of the composite amplitude transformer is contacted with the front end face of the ultrasonic transducer; a third blind screw hole is formed in the center of the front end face of the composite amplitude transformer; the flange plate is fixedly sleeved at the pitch circle of the composite amplitude transformer, and the rear end face of the flange plate is fixed with the front end face of the first pipe shell; the second pipe shell is sleeved on the outer side of the front part of the composite amplitude transformer, and the center line of the second pipe shell is superposed with the center line of the composite amplitude transformer; a first positioning convex ring extends from the rear end of the outer side surface of the second tube shell, and the rear end surface of the first positioning convex ring is fixed with the front end surface of the flange plate; a second positioning convex ring is arranged at the front end of the outer side surface of the second tube shell in an extending manner; the left end of the box shell is provided with an opening; the rear side wall of the box shell is provided with a butt circular hole in a through way; the edge of the rear end orifice of the butt joint circular hole is fixed with the front end face of the second positioning convex ring, and the center line of the butt joint circular hole is superposed with the center line of the second tube shell; the dowel bar comprises a front section square bar and a rear section screw; the front section square rod penetrates through the butt joint round hole; the front end of the side surface of the front section square rod is provided with a pin hole which is communicated up and down; a reinforcing convex ring is extended from the rear end of the side surface of the front section square rod; the rear section screw is screwed in the third blind screw hole, and the rear end face of the reinforcing convex ring is in contact with the front end face of the composite amplitude transformer; the sliding block seat is arranged in the inner cavity of the box shell in a penetrating way along the transverse sliding way; a fourth blind screw hole is formed in the left side surface of the sliding block seat; the upper side surface of the sliding block seat is a stepped surface with a high left part and a low right part, and the right part of the stepped surface is provided with a guide arc groove; the side surface of the knife handle is provided with an external thread; the tool shank is screwed in the fourth blind screw hole through external threads, and the left end face of the tool shank exceeds the left side face of the sliding block seat; the cutter head is fixed on the left end face of the cutter handle, and the tip of the cutter head faces to the left; the distance adjusting nut is screwed on the side face of the tool shank and tightly presses the left side face of the sliding block seat; the pin shaft penetrates through the pin hole; the guide circular ring is fixedly sleeved at the lower end of the side surface of the pin shaft and is embedded in the guide arc groove in a sliding manner;
the centering support mechanism comprises a support shaft, a support disc, a stud, an adjusting nut, a U-shaped wheel carrier, a compression spring, a roller shaft, a locking nut and a support roller;
a third positioning convex ring is arranged at the rear end of the side surface of the supporting shaft in an extending manner; the rear end face of the third positioning convex ring is fixed with the front outer side face of the box shell, and the center line of the supporting shaft is superposed with the center line of the butt-joint round hole; the middle part of the side surface of the supporting shaft is provided with a circumferential groove with a right trapezoid radial section, and the rear groove wall of the circumferential groove is a slope surface with a lower front part and a higher rear part; the front part of the side surface and the rear part of the side surface of the supporting shaft are both provided with external threads; the number of the supporting disks is two; the center of the end surface of each of the two supporting disks is provided with a central hole in a through way, and the two supporting disks are fixedly sleeved on the front part and the rear part of the side surface of the supporting shaft through the two central holes respectively; the edges of the end surfaces of the two supporting disks are respectively provided with three positioning screw holes which are arranged at equal intervals along the circumferential direction in a penetrating way; the front end surface of the first supporting disk and the rear end surface of the second supporting disk are respectively provided with three radial grooves which are communicated from inside to outside; the bottoms of the six radial grooves are all stepped surfaces with high outer parts and low inner parts, and transition sections of the stepped surfaces are provided with first assembly blind holes with inward orifices; the number of the double-end studs is three; the rear ends of the three double-end studs are screwed in the three positioning screw holes of the first supporting disc in a one-to-one correspondence manner; the front ends of the three double-end studs are screwed in the three positioning screw holes of the second supporting disc in a one-to-one correspondence manner; the number of the adjusting nuts is two; the two adjusting nuts are respectively screwed on the front part and the rear part of the side surface of the supporting shaft, and respectively press the rear end surface of the first supporting disk and the front end surface of the second supporting disk; the number of the U-shaped wheel carriers is three; the bottom edges of the three U-shaped wheel carriers are longitudinally arranged; the side edges of the three U-shaped wheel carriers are radially arranged; the rear ends of the outer bottom surfaces of the three U-shaped wheel carriers are respectively provided with a radial convex block with a right trapezoid longitudinal section in an extending way, and the rear side surfaces of the three radial convex blocks are slope surfaces with high front parts and low rear parts; the slope surfaces of the three radial bumps are in sliding fit with the slope surfaces of the circumferential groove; the inner ends of the rear outer side surfaces of the three U-shaped wheel carriers are respectively provided with a longitudinal lug in an extending manner, and the three longitudinal lugs are slidably embedded in the three radial grooves of the first supporting disc in a one-to-one correspondence manner; the inner ends of the front outer side surfaces of the three U-shaped wheel carriers are respectively provided with a longitudinal lug in an extending way, and the three longitudinal lugs are correspondingly embedded in three radial grooves of the second supporting disc in a sliding way; the six longitudinal convex blocks are respectively provided with a second assembly blind hole with an outward hole opening, and the six second assembly blind holes are opposite to the six first assembly blind holes one by one; the outer ends of the front side and the rear side of the three U-shaped wheel carriers are respectively provided with an assembly through hole which is communicated with the front and the rear; the number of the compression springs is six; the six compression springs are all arranged in a radial direction; the outer ends of the six compression springs penetrate through the six first assembly blind holes in a one-to-one correspondence manner; the inner ends of the six compression springs penetrate through the six second assembly blind holes in a one-to-one correspondence manner; the number of the roller shafts is three; the rear parts of the three roller shafts penetrate through the three assembly through holes on the rear side edges of the three U-shaped wheel frames in a one-to-one correspondence manner; the front parts of the three roller shafts penetrate through the three assembly through holes on the front side edges of the three U-shaped wheel frames in a one-to-one correspondence manner; the rear ends of the side surfaces of the three roller shafts are respectively provided with a limiting convex ring in an extending way; the front parts of the side surfaces of the three roller shafts are provided with external threads; the number of the locking nuts is three; the three locking nuts are screwed on the front parts of the side surfaces of the three roller shafts in a one-to-one corresponding manner, and the three locking nuts press the front outer side surfaces of the three U-shaped wheel frames in a one-to-one corresponding manner; the number of the supporting rollers is three; the three supporting rollers are rotatably assembled in the middle of the side surfaces of the three roller shafts in a one-to-one correspondence manner.
When the electric motor works, the cylinder sleeve is horizontally arranged and is connected with an output shaft of the motor. The invention is fixed on a square tool rest of a machine tool. The input end of the ultrasonic transducer is connected with the output end of the pulse type ultrasonic generator, and the input end of the pulse type ultrasonic generator is connected with the output end of the alternating current power supply. The tool bit and the three supporting rollers all extend into the cylinder sleeve, the tool bit is pressed close to the inner side face of the cylinder sleeve, and the three supporting rollers all contact with the inner side face of the cylinder sleeve. The specific working process is as follows: firstly, a motor is started, and the motor drives a cylinder sleeve to rotate around the center line of the cylinder sleeve. Then, an alternating current power supply is switched on, and alternating current output by the alternating current power supply is transmitted to the pulse type ultrasonic generator. The pulse type ultrasonic generator converts alternating current into an intermittent ultrasonic frequency alternating current signal and transmits the intermittent ultrasonic frequency alternating current signal to the ultrasonic transducer. The ultrasonic transducer converts an intermittent ultrasonic frequency alternating current signal into ultrasonic frequency longitudinal vibration. Ultrasonic frequency longitudinal vibration is transmitted to the dowel bar after being amplified through the composite amplitude transformer, the dowel bar drives the guide ring to perform ultrasonic frequency reciprocating sliding along the guide arc groove through the pin shaft, the guide ring pushes the slider seat to perform ultrasonic frequency transverse vibration along the box shell, the slider seat drives the cutter head to perform ultrasonic frequency transverse vibration through the cutter handle, and the cutter head performs punching on the inner side surface of the cylinder sleeve to form a micro pit. In the process, the invention is driven by a square tool rest of a machine tool to feed along the longitudinal direction, so that the micro-pit array arranged according to a certain rule is punched on the inner side surface of the cylinder sleeve. The heat dissipation strip holes and the heat dissipation fan are used for dissipating heat of the ultrasonic transducer together, so that the ultrasonic transducer can work continuously and stably. The centering support mechanism plays a role in centering and supporting, so that the tool bit is prevented from being influenced by deflection in the machining process, and the machining precision is ensured. The machining radius of the tool bit can be adjusted through the distance adjusting nut, and the expansion radius of the three supporting rollers can be adjusted through the two adjusting nuts, so that the tool bit and the three supporting rollers are suitable for cylinder sleeves with different cylinder diameters. The specific adjustment process is as follows: firstly, adjusting the machining radius of a tool bit: first, the pitch nut is screwed in the reverse direction so that the pitch nut is separated from the left side surface of the slider holder. Then, the shank is screwed in the reverse direction (forward direction) so that the protruding length of the shank is increased (decreased), thereby increasing (decreasing) the machining radius of the tool bit. And when the machining radius of the tool bit is increased (reduced) to a specified value, positively screwing the distance adjusting nut, so that the distance adjusting nut tightly presses the left side surface of the sliding block seat, and thus, the adjustment is completed. Adjusting the expansion radius of three support rollers: two adjusting nuts are screwed forward (backward), the two adjusting nuts press the two supporting disks backward (forward), and the two supporting disks press the three U-shaped wheel carriers backward (forward). Under the pressing action, the three radial lugs slide outwards (inwards) along the circumferential grooves, so that the three U-shaped wheel frames expand outwards (contract inwards), and the expansion radius of the three supporting rollers is increased (reduced).
Based on the process, compared with the existing ultrasonic micro-pit processing device, the ultrasonic micro-pit processing device based on the guide type force transmission structure has the following advantages: firstly, the invention does not adopt a direct-connection type force transmission structure, but adopts a guide type force transmission structure consisting of a force transmission rod, a pin shaft, a guide ring and a guide arc groove, so that the ultrasonic frequency longitudinal vibration is converted into the ultrasonic frequency transverse vibration, the radial size of the ultrasonic frequency transverse vibration is effectively reduced, the ultrasonic frequency transverse vibration is suitable for processing a small-cylinder-diameter cylinder sleeve, and the application range is not limited. Secondly, the centering support mechanism is adopted, so that the influence of deflection on the centering support mechanism in the machining process is effectively avoided, the machining process is more stable, and the machining precision is higher.
The ultrasonic micro-pit machining device is reasonable in structure and ingenious in design, effectively solves the problems that an existing ultrasonic micro-pit machining device is limited in application range and low in machining precision, and is suitable for machining cylinder sleeve friction pairs.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic plan view of the present invention.
Fig. 3 is a left side view of fig. 2.
Fig. 4 is a partially enlarged view of a portion a in fig. 2.
Fig. 5 is a partially enlarged view at B in fig. 3.
Fig. 6 is a schematic view of the structure of the support shaft in the present invention.
Fig. 7 is a schematic view of the structure of the support disk of the present invention.
Fig. 8 is a left side view of fig. 7.
In the figure: 101-a first pipe shell, 102-an end cover, 103-a heat radiation fan, 104-an ultrasonic transducer, 105-a full thread stud, 106-a composite amplitude transformer, 107-a flange plate, 108-a second pipe shell, 109-a box shell, 110-a dowel bar, 111-a slider seat, 112-a handle, 113-a cutter head, 114-a distance adjusting nut, 115-a pin shaft, 116-a guide ring, 117-a heat radiation strip hole, 118-a butt joint round hole, 119-a guide arc groove, 201-a support shaft, 202-a support disc, 203-a stud, 204-an adjusting nut, 205-a U-shaped wheel frame, 206-a compression spring, 207-a roller shaft, 208-a locking nut, 209-a support roller, 210-a circumferential groove, 211-a central hole, 212-positioning screw holes, 213-radial grooves, 214-keys, 215-locking screw holes, 216-set screws, 217-shaft sleeves, 301-seat plates, 302-L-shaped supporting rods, 303-split hoops and 304-installation through holes.
Detailed Description
The ultrasonic micro-pit processing device based on the guide type force transmission structure comprises a main body mechanism and a centering support mechanism;
the main body mechanism comprises a first pipe shell 101, an end cover 102, a cooling fan 103, an ultrasonic transducer 104, a full-thread stud 105, a composite amplitude transformer 106, a flange plate 107, a second pipe shell 108, a box shell 109, a transmission rod 110, a slider seat 111, a knife handle 112, a knife head 113, a distance adjusting nut 114, a pin shaft 115 and a guide ring 116;
the rear part of the side wall of the first case 101 is provided with a plurality of radiating strip holes 117 which are arranged equidistantly along the circumferential direction in a penetrating manner; end cap 102 covers the rear opening of first housing 101; the heat dissipation fan 103 is installed on the end cover 102 in a penetrating manner; ultrasonic transducer 104 is located in the inner cavity of first package 101, and the center line of ultrasonic transducer 104 coincides with the center line of first package 101; a first blind screw hole is formed in the center of the front end face of the ultrasonic transducer 104; the rear end of the full-thread stud 105 is screwed in the first blind screw hole; the composite amplitude transformer 106 penetrates through the front opening of the first pipe shell 101; a second blind screw hole is formed in the center of the rear end face of the composite amplitude transformer 106; the composite amplitude transformer 106 is screwed on the full-thread stud 105 through a second blind screw hole, and the rear end face of the composite amplitude transformer 106 is in contact with the front end face of the ultrasonic transducer 104; a third blind screw hole is formed in the center of the front end face of the composite amplitude transformer 106; the flange 107 is fixedly sleeved at the pitch circle of the composite amplitude transformer 106, and the rear end face of the flange 107 is fixed with the front end face of the first shell 101; the second pipe shell 108 is sleeved outside the front part of the composite amplitude transformer 106, and the center line of the second pipe shell 108 is superposed with the center line of the composite amplitude transformer 106; a first positioning convex ring extends from the rear end of the outer side surface of the second tube shell 108, and the rear end surface of the first positioning convex ring is fixed with the front end surface of the flange 107; a second positioning convex ring extends from the front end of the outer side surface of the second tube shell 108; the left end of the box shell 109 is provided with an opening; a butt circular hole 118 is formed in the rear side wall of the box shell 109 in a penetrating manner; the edge of the rear end orifice of the circular abutting hole 118 is fixed with the front end face of the second positioning convex ring, and the center line of the circular abutting hole 118 is superposed with the center line of the second pipe shell 108; the dowel bar 110 comprises a front section square rod and a rear section screw rod; the front section square rod penetrates through the butt joint round hole 118; the front end of the side surface of the front section square rod is provided with a pin hole which is communicated up and down; a reinforcing convex ring is extended from the rear end of the side surface of the front section square rod; the rear section screw is screwed in the third blind screw hole, and the rear end face of the reinforcing convex ring is in contact with the front end face of the composite amplitude transformer 106; the sliding block seat 111 is arranged in the inner cavity of the box shell 109 in a penetrating way along the transverse sliding way; a fourth blind screw hole is formed in the left side surface of the sliding block seat 111; the upper side surface of the slider seat 111 is a stepped surface with a high left and a low right, and the right part of the stepped surface is provided with a guide arc groove 119; the side surface of the knife handle 112 is provided with an external thread; the tool shank 112 is screwed in the fourth blind screw hole through external threads, and the left end face of the tool shank 112 exceeds the left side face of the sliding block seat 111; the cutter head 113 is fixed on the left end surface of the cutter handle 112, and the tip of the cutter head 113 faces to the left; the pitch nut 114 is screwed on the side surface of the tool shank 112, and the pitch nut 114 tightly presses the left side surface of the slider seat 111; the pin 115 penetrates the pin hole; the guide circular ring 116 is fixedly sleeved at the lower end of the side surface of the pin shaft 115, and the guide circular ring 116 is slidably embedded in the guide arc groove 119;
the centering support mechanism comprises a support shaft 201, a support disc 202, a stud 203, an adjusting nut 204, a U-shaped wheel frame 205, a compression spring 206, a roller shaft 207, a locking nut 208 and a support roller 209;
a third positioning convex ring extends from the rear end of the side surface of the supporting shaft 201; the rear end face of the third positioning convex ring is fixed with the front outer side face of the box shell 109, and the center line of the supporting shaft 201 is overlapped with the center line of the butt-joint round hole 118; a circumferential groove 210 with a right trapezoid radial cross section is formed in the middle of the side surface of the support shaft 201, and the rear groove wall of the circumferential groove 210 is a slope surface with a lower front part and a higher rear part; the front part and the rear part of the side surface of the supporting shaft 201 are provided with external threads; the number of the support disks 202 is two; the center of the end face of each of the two support disks 202 is provided with a central hole 211 in a through manner, and the two support disks 202 are respectively fixedly sleeved on the front part and the rear part of the side face of the support shaft 201 through the two central holes 211; the end face edges of the two supporting disks 202 are respectively provided with three positioning screw holes 212 which are arranged at equal intervals along the circumferential direction in a penetrating way; the front end surface of the first supporting disk 202 and the rear end surface of the second supporting disk 202 are respectively provided with three radial grooves 213 which are communicated from inside to outside; the bottoms of the six radial grooves 213 are all stepped surfaces with high outer parts and low inner parts, and transition sections of the stepped surfaces are provided with first assembly blind holes with inward orifices; the number of the studs 203 is three; the rear ends of the three studs 203 are screwed into the three positioning screw holes 212 of the first support disc 202 in a one-to-one correspondence manner; the front ends of the three studs 203 are screwed into the three positioning screw holes 212 of the second support disc 202 in a one-to-one correspondence manner; the number of the adjusting nuts 204 is two; the two adjusting nuts 204 are respectively screwed on the front part and the rear part of the side surface of the supporting shaft 201, and the two adjusting nuts 204 respectively press the rear end surface of the first supporting disk 202 and the front end surface of the second supporting disk 202; the number of the U-shaped wheel frames 205 is three; the bottom edges of the three U-shaped wheel frames 205 are longitudinally arranged; the sides of the three U-shaped wheel frames 205 are all arranged in a radial direction; the rear ends of the outer bottom surfaces of the three U-shaped wheel frames 205 are respectively provided with a radial convex block with a right trapezoid longitudinal section in an extending manner, and the rear side surfaces of the three radial convex blocks are all slope surfaces with high front parts and low rear parts; the slope surfaces of the three radial protrusions are in sliding fit with the slope surfaces of the circumferential groove 210; the inner ends of the rear outer side surfaces of the three U-shaped wheel frames 205 are respectively provided with a longitudinal lug in an extending manner, and the three longitudinal lugs are correspondingly embedded in the three radial grooves 213 of the first supporting disc 202 in a sliding manner; the inner ends of the front outer side surfaces of the three U-shaped wheel frames 205 are respectively provided with a longitudinal lug in an extending way, and the three longitudinal lugs are correspondingly embedded in the three radial grooves 213 of the second supporting disc 202 in a sliding way; the six longitudinal convex blocks are respectively provided with a second assembly blind hole with an outward hole opening, and the six second assembly blind holes are opposite to the six first assembly blind holes one by one; the outer ends of the front side and the rear side of the three U-shaped wheel frames 205 are respectively provided with an assembly through hole which is communicated with the front and the rear; the number of compression springs 206 is six; the six compression springs 206 are all arranged in a radial direction; the outer ends of the six compression springs 206 are correspondingly arranged in the six first assembly blind holes in a penetrating manner; the inner ends of the six compression springs 206 are correspondingly arranged in the six second assembly blind holes in a penetrating manner; the number of the roller shafts 207 is three; the rear parts of the three roller shafts 207 penetrate through the three assembly through holes on the rear side edges of the three U-shaped wheel frames 205 in a one-to-one correspondence manner; the front parts of the three roller shafts 207 correspondingly penetrate through three assembling through holes on the front side edges of the three U-shaped wheel frames 205 one by one; the rear ends of the side surfaces of the three roller shafts 207 are respectively provided with a limiting convex ring in an extending way; the front parts of the side surfaces of the three roller shafts 207 are provided with external threads; the number of the lock nuts 208 is three; the three locking nuts 208 are screwed on the front parts of the side surfaces of the three roller shafts 207 in a one-to-one correspondence manner, and the three locking nuts 208 tightly press the front outer side surfaces of the three U-shaped wheel frames 205 in a one-to-one correspondence manner; the number of the supporting rollers 209 is three; the three support rollers 209 are rotatably fitted to the lateral middle portions of the three roller shafts 207 in a one-to-one correspondence.
A key groove is formed in the front part of the side surface of the support shaft 201, and a key 214 is assembled in the key groove; the outer ends of the bottoms of the three radial grooves 213 of the first supporting disk 202 are respectively provided with a locking screw hole 215 which is penetrated in front and back; a set screw 216 penetrates through each of the three locking screw holes 215, and the tail end surfaces of the three set screws 216 press the rear outer side surfaces of the three U-shaped wheel frames 205 one by one; the front parts of the side surfaces of the three roller shafts 207 are respectively fixedly provided with a shaft sleeve 217; the front end surfaces of the three shaft sleeves 217 are in one-to-one corresponding contact with the front inner side surfaces of the three U-shaped wheel frames 205; the rear end surfaces of the three shaft sleeves 217 are in one-to-one corresponding contact with the front end surfaces of the three supporting rollers 209; both central holes 211 are splined central holes.
The device also comprises a clamping mechanism; the clamping mechanism comprises a seat plate 301, an L-shaped support rod 302 and a split hoop 303; the left part of the surface of the seat plate 301 is provided with a plurality of vertically through mounting through holes 304; the vertical section of the L-shaped supporting rod 302 is vertically fixed at the right part of the upper surface of the seat plate 301; the split anchor ear 303 is hooped on the front part of the outer side surface of the first tube shell 101, and the upper half hoop of the split anchor ear 303 is fixed on the front end of the lower side surface of the longitudinal section of the L-shaped pole support 302. During operation, the seat plate is fixed on the square tool rest of the machine tool through the mounting through holes, so that the invention is fixed on the square tool rest of the machine tool.
The ultrasonic transducer 104 adopts a piezoelectric ultrasonic transducer; the second tube shell 108 is a stepped tube shell with a thin front part and a thick rear part; the slider seat 111 is made of aluminum alloy; the tool bit 113 adopts a spherical tool bit, an ellipsoidal tool bit, a rectangular tool bit, a rhombic tool bit or a star-shaped tool bit; the compression spring 206 is a cylindrical compression spring; the supporting roller 209 is made of flexible wear-resistant resin material.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (4)
1. The utility model provides an supersound pit processingequipment that declines based on direction formula biography power structure which characterized in that: comprises a main body mechanism and a centering support mechanism;
the main body mechanism comprises a first pipe shell (101), an end cover (102), a cooling fan (103), an ultrasonic transducer (104), a full-thread stud (105), a composite amplitude transformer (106), a flange plate (107), a second pipe shell (108), a box shell (109), a force transmission rod (110), a slider seat (111), a knife handle (112), a knife head (113), a distance adjusting nut (114), a pin shaft (115) and a guide ring (116);
the rear part of the side wall of the first shell (101) is provided with a plurality of radiating strip holes (117) which are arranged at equal intervals along the circumferential direction in a penetrating way; the end cover (102) is covered on the rear end opening of the first pipe shell (101); the heat radiation fan (103) is arranged on the end cover (102) in a penetrating way; the ultrasonic transducer (104) is positioned in the inner cavity of the first pipe shell (101), and the central line of the ultrasonic transducer (104) is superposed with the central line of the first pipe shell (101); a first blind screw hole is formed in the center of the front end face of the ultrasonic transducer (104); the rear end of the full-thread stud (105) is screwed in the first blind screw hole; the composite amplitude transformer (106) penetrates through the front end opening of the first pipe shell (101); a second blind screw hole is formed in the center of the rear end face of the composite amplitude transformer (106); the composite amplitude transformer (106) is screwed on the full-thread stud (105) through a second blind screw hole, and the rear end face of the composite amplitude transformer (106) is in contact with the front end face of the ultrasonic transducer (104); a third blind screw hole is formed in the center of the front end face of the composite amplitude transformer (106); the flange (107) is fixedly sleeved at the pitch circle of the composite amplitude transformer (106), and the rear end face of the flange (107) is fixed with the front end face of the first pipe shell (101); the second pipe shell (108) is sleeved outside the front part of the composite amplitude transformer (106), and the center line of the second pipe shell (108) is superposed with the center line of the composite amplitude transformer (106); a first positioning convex ring extends from the rear end of the outer side surface of the second tube shell (108), and the rear end surface of the first positioning convex ring is fixed with the front end surface of the flange plate (107); a second positioning convex ring is arranged at the front end of the outer side surface of the second pipe shell (108) in an extending way; the left end of the box shell (109) is provided with an opening; a butt joint round hole (118) is formed in the rear side wall of the box shell (109) in a penetrating manner; the edge of a rear end orifice of the butt joint round hole (118) is fixed with the front end face of the second positioning convex ring, and the center line of the butt joint round hole (118) is superposed with the center line of the second pipe shell (108); the dowel bar (110) comprises a front section square bar and a rear section screw; the front section square rod penetrates through the butt joint round hole (118); the front end of the side surface of the front section square rod is provided with a pin hole which is communicated up and down; a reinforcing convex ring is extended from the rear end of the side surface of the front section square rod; the rear section screw is screwed in the third blind screw hole, and the rear end face of the reinforcing convex ring is contacted with the front end face of the composite amplitude transformer (106); the sliding block seat (111) is arranged in the inner cavity of the box shell (109) in a penetrating way along the transverse sliding way; a fourth blind screw hole is formed in the left side surface of the sliding block seat (111); the upper side surface of the slider seat (111) is a stepped surface with a high left part and a low right part, and the right part of the stepped surface is provided with a guide arc groove (119); the side surface of the knife handle (112) is provided with an external thread; the tool handle (112) is screwed in the fourth blind screw hole through external threads, and the left end face of the tool handle (112) exceeds the left side face of the sliding block seat (111); the tool bit (113) is fixed on the left end surface of the tool handle (112), and the tip of the tool bit (113) faces to the left; the distance adjusting nut (114) is screwed on the side surface of the cutter handle (112), and the distance adjusting nut (114) tightly presses the left side surface of the slider seat (111); the pin shaft (115) penetrates through the pin hole; the guide circular ring (116) is fixedly sleeved at the lower end of the side surface of the pin shaft (115), and the guide circular ring (116) is embedded in the guide arc groove (119) in a sliding manner;
the centering support mechanism comprises a support shaft (201), a support disc (202), a stud (203), an adjusting nut (204), a U-shaped wheel frame (205), a compression spring (206), a roller shaft (207), a locking nut (208) and a support roller (209);
a third positioning convex ring is arranged at the rear end of the side surface of the supporting shaft (201) in an extending manner; the rear end face of the third positioning convex ring is fixed with the front outer side face of the box shell (109), and the center line of the support shaft (201) is superposed with the center line of the butt joint round hole (118); the middle part of the side surface of the support shaft (201) is provided with a circumferential groove (210) with a right trapezoid radial section, and the rear groove wall of the circumferential groove (210) is a slope surface with a low front part and a high rear part; the front part and the rear part of the side surface of the supporting shaft (201) are provided with external threads; the number of the supporting discs (202) is two; the centers of the end surfaces of the two supporting disks (202) are respectively provided with a central hole (211) in a through way, and the two supporting disks (202) are fixedly sleeved at the front part and the rear part of the side surface of the supporting shaft (201) through the two central holes (211); the end face edges of the two supporting disks (202) are respectively provided with three positioning screw holes (212) which are arranged at equal intervals along the circumferential direction in a penetrating way; the front end surface of the first supporting disk (202) and the rear end surface of the second supporting disk (202) are respectively provided with three radial grooves (213) which are communicated from inside to outside; the bottoms of the six radial grooves (213) are all stepped surfaces with high outer parts and low inner parts, and transition sections of the stepped surfaces are provided with first assembly blind holes with inward orifices; the number of the double-end studs (203) is three; the rear ends of the three double-end studs (203) are screwed in three positioning screw holes (212) of the first supporting disc (202) in a one-to-one correspondence manner; the front ends of the three double-end studs (203) are screwed in three positioning screw holes (212) of the second supporting disc (202) in a one-to-one correspondence manner; the number of the adjusting nuts (204) is two; the two adjusting nuts (204) are respectively screwed on the front part and the rear part of the side surface of the supporting shaft (201), and the two adjusting nuts (204) respectively press the rear end surface of the first supporting disk (202) and the front end surface of the second supporting disk (202); the number of the U-shaped wheel frames (205) is three; the bottom edges of the three U-shaped wheel frames (205) are longitudinally arranged; the side edges of the three U-shaped wheel frames (205) are all arranged in a radial direction; the rear ends of the outer bottom surfaces of the three U-shaped wheel carriers (205) are respectively provided with a radial convex block with a right trapezoid longitudinal section in an extending way, and the rear side surfaces of the three radial convex blocks are all slope surfaces with high front parts and low rear parts; the slope surfaces of the three radial convex blocks are in sliding fit with the slope surfaces of the circumferential groove (210); the inner ends of the rear outer side surfaces of the three U-shaped wheel frames (205) are respectively provided with a longitudinal lug in an extending way, and the three longitudinal lugs are slidably embedded in three radial grooves (213) of the first supporting disc (202) in a one-to-one correspondence way; the inner ends of the front outer side surfaces of the three U-shaped wheel frames (205) are respectively provided with a longitudinal lug in an extending way, and the three longitudinal lugs are slidably embedded in three radial grooves (213) of the second supporting disc (202) in a one-to-one correspondence way; the six longitudinal convex blocks are respectively provided with a second assembly blind hole with an outward hole opening, and the six second assembly blind holes are opposite to the six first assembly blind holes one by one; the outer ends of the front side and the outer end of the rear side of the three U-shaped wheel frames (205) are respectively provided with an assembly through hole which is communicated from front to back; the number of the compression springs (206) is six; six compression springs (206) are all arranged in a radial direction; the outer ends of the six compression springs (206) are correspondingly arranged in the six first assembly blind holes in a penetrating manner; the inner ends of the six compression springs (206) are correspondingly arranged in the six second assembly blind holes in a penetrating manner; the number of the roller shafts (207) is three; the rear parts of the three roller shafts (207) correspondingly penetrate through three assembly through holes on the rear side edges of the three U-shaped wheel frames (205) one by one; the front parts of the three roller shafts (207) correspondingly penetrate through three assembling through holes on the front side edges of the three U-shaped wheel frames (205) one by one; the rear ends of the side surfaces of the three roller shafts (207) are respectively provided with a limiting convex ring in an extending way; the front parts of the side surfaces of the three roller shafts (207) are provided with external threads; the number of the locking nuts (208) is three; the three locking nuts (208) are screwed on the front parts of the side surfaces of the three roller shafts (207) in a one-to-one correspondence manner, and the three locking nuts (208) press the front outer side surfaces of the three U-shaped wheel frames (205) in a one-to-one correspondence manner; the number of the supporting rollers (209) is three; the three supporting rollers (209) are rotatably assembled in the middle of the side surfaces of the three roller shafts (207) in a one-to-one correspondence manner.
2. The ultrasonic micro-pit machining device based on the guide type force transmission structure is characterized in that: a key groove is formed in the front part of the side surface of the support shaft (201), and a key (214) is assembled in the key groove; the outer ends of the bottoms of the three radial grooves (213) of the first supporting disk (202) are respectively provided with a locking screw hole (215) which is penetrated in front and back; a set screw (216) penetrates through each of the three locking screw holes (215), and the tail end surfaces of the three set screws (216) press the rear outer side surfaces of the three U-shaped wheel frames (205) one by one; the front parts of the side surfaces of the three roller shafts (207) are respectively fixedly provided with a shaft sleeve (217); the front end surfaces of the three shaft sleeves (217) are in one-to-one corresponding contact with the front inner side surfaces of the three U-shaped wheel frames (205); the rear end surfaces of the three shaft sleeves (217) are in one-to-one corresponding contact with the front end surfaces of the three supporting rollers (209); the two central holes (211) are both provided with key slots.
3. The ultrasonic micro-pit machining device based on the guide type force transmission structure is characterized in that: the device also comprises a clamping mechanism; the clamping mechanism comprises a seat plate (301), an L-shaped support rod (302) and a split hoop (303); the left part of the surface of the seat plate (301) is provided with a plurality of vertically through mounting through holes (304); the vertical section of the L-shaped support rod (302) is vertically fixed at the right part of the upper surface of the seat plate (301); the split hoop (303) is hooped at the front part of the outer side surface of the first tube shell (101), and the upper half hoop of the split hoop (303) is fixed at the front end of the lower side surface of the longitudinal section of the L-shaped support rod (302).
4. The ultrasonic micro-pit machining device based on the guide type force transmission structure is characterized in that: the ultrasonic transducer (104) adopts a piezoelectric ultrasonic transducer; the second tube shell (108) adopts a stepped tube shell with a thin front part and a thick rear part; the sliding block seat (111) is made of aluminum alloy; the tool bit (113) adopts a spherical tool bit, an ellipsoidal tool bit, a rectangular tool bit, a rhombic tool bit or a star-shaped tool bit; the compression spring (206) adopts a cylindrical compression spring; the supporting rollers (209) are made of flexible wear-resistant resin materials.
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| CN113029558B (en) * | 2021-03-07 | 2022-07-01 | 天津大学 | Adjustable grouping radial load spring applying device |
| CN114878752A (en) * | 2022-05-19 | 2022-08-09 | 中北大学 | Double-frequency ultrasonic cavitation experimental device with multiple degrees of freedom |
| CN116536493B (en) * | 2023-06-27 | 2023-08-29 | 集美大学 | Small hole strengthening device and wire feeding guide hole machining method using same |
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| CN1172770C (en) * | 1998-03-17 | 2004-10-27 | 应力波公司 | Method and apparatus for producing beneficial stresses around apertures by the use of focused stress waves |
| KR100894499B1 (en) * | 2008-05-14 | 2009-04-22 | (주)디자인메카 | The bearing processing system using an ultrasonic nano crystal surface modifier and processing method using the same |
| CN107322460B (en) * | 2017-07-14 | 2019-04-12 | 中原内配集团安徽有限责任公司 | A kind of cylinder sleeve working surface special processor |
| CN207508603U (en) * | 2017-10-31 | 2018-06-19 | 中北大学 | A kind of adjustable micro-pits machining device |
| CN108787870B (en) * | 2018-07-09 | 2020-05-26 | 中北大学 | Ultrasonic micro-pit processing device |
| CN109483336A (en) * | 2018-10-17 | 2019-03-19 | 嘉兴学院 | Thin-wall cylinder casing grinding head and control system with pressure intelligent control |
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