CN110961729B - Ultrasonic micro-pit processing device based on cambered surface contact type force transmission structure - Google Patents
Ultrasonic micro-pit processing device based on cambered surface contact type force transmission structure Download PDFInfo
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Abstract
The invention relates to an ultrasonic micro-pit processing device, in particular to an ultrasonic micro-pit processing device based on a cambered surface contact 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 cambered surface contact type force transmission structure comprises a main body mechanism and a centering support mechanism; the main 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 driving force transmission rod, a sliding block seat, a knife handle, a knife head, a distance adjusting nut, a driven force transmission rod and an extension spring; the centering support mechanism comprises a support shaft, a support sleeve, a gear shaft, a U-shaped wheel carrier, 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 cambered surface contact 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 above, it is necessary to invent an ultrasonic micro-pit processing device based on a cambered surface contact type force transmission structure, so as to solve the problems of limited application range and low processing precision of the existing ultrasonic micro-pit processing device.
Disclosure of Invention
The invention provides an ultrasonic micro-pit processing device based on a cambered surface contact type force transmission structure, which aims to solve 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 cambered surface contact type force transmission structure comprises a main body mechanism and a centering support mechanism;
the main 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 driving force transmission rod, a sliding block seat, a knife handle, a knife head, a distance adjusting nut, a driven force transmission rod and an extension spring;
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 active 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; an arc-shaped chamfer surface is arranged between the front end surface and the left side surface of the front section square rod; 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 right side surface of the sliding block seat is provided with a plurality of fifth blind screw holes which are arranged at equal intervals along the circumferential direction; 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 driven dowel bar is a square bar; a third positioning convex ring extends from the left end of the side surface of the driven dowel bar; the end face of the third positioning convex ring is provided with a plurality of positioning through holes which are arranged at equal intervals along the circumferential direction in a penetrating way, and the number of the positioning through holes is consistent with that of the fifth blind screw holes; a positioning bolt penetrates through each positioning through hole, and the tail end of each positioning bolt is screwed into each fifth blind screw hole in a one-to-one correspondence manner; an arc-shaped chamfer surface is arranged between the right end surface and the rear side surface of the driven dowel bar, and the arc-shaped chamfer surface of the driven dowel bar is in tangential contact with the arc-shaped chamfer surface of the driving dowel bar; two ends of the extension spring are respectively fixed with the rear part of the right inner side surface of the box shell and the rear part of the right side surface of the sliding block seat;
the centering support mechanism comprises a support shaft, a support sleeve, a gear shaft, a U-shaped wheel carrier, a roller shaft, a locking nut and a support roller;
the supporting shaft is a hollow shaft; a fourth positioning convex ring is arranged at the rear end of the outer side surface of the supporting shaft in an extending manner; the rear end face of the fourth 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; a fifth positioning convex ring is arranged at the front end of the outer side surface of the supporting shaft in an extending manner; the front end of the supporting sleeve is provided with an end wall, and the rear end of the supporting sleeve is provided with an opening; the rear end face of the supporting sleeve is fixed with the front end face of the fifth positioning convex ring, and the center line of the supporting sleeve is superposed with the center line of the supporting shaft; the middle part of the side wall of the supporting sleeve is provided with three assembling holes which are arranged at equal intervals along the circumferential direction in a penetrating way; the front part of the side wall of the supporting sleeve is provided with three longitudinal bar holes which are arranged at equal intervals along the circumferential direction in a penetrating way; the center of the front end wall of the supporting sleeve is provided with a central hole in a through way; the front end wall of the supporting sleeve is provided with three radial strip holes which are arranged at equal intervals along the circumferential direction in a penetrating way; the inner ends of the three radial strip holes are communicated with the central hole; the outer ends of the three radial strip holes are communicated with the front ends of the three longitudinal strip holes in a one-to-one correspondence manner, and the three radial strip holes and the three longitudinal strip holes jointly form three L-shaped mounting holes; the hole wall of each radial strip hole is provided with a pair of symmetrical radial convex edges in an extending way; the inner side surface of the supporting sleeve is rotatably assembled with a driven large bevel gear, and the front surface of the driven large bevel gear faces backwards; the back of the driven large bevel gear is provided with a plane thread; the number of the gear shafts is three; the side surfaces of the three gear shafts are provided with external threads, and the three gear shafts penetrate through the three assembling holes in a one-to-one correspondence manner; the inner ends of the side surfaces of the three gear shafts are respectively fixedly provided with a driving small bevel gear, and the three driving small bevel gears are all meshed with the driven large bevel gear; the outer end faces of the three gear shafts are respectively provided with an inner square blind hole; 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 side surface of the bottom edge of each U-shaped wheel carrier is provided with a pair of radial sliding grooves which are symmetrical with each other; the bottom edges of the three U-shaped wheel carriers penetrate through the three L-shaped mounting holes in a one-to-one correspondence manner, and the three pairs of radial chutes are matched with the three pairs of radial ribs in a one-to-one correspondence manner; the rear outer side surfaces of the three U-shaped wheel frames are provided with plane threads, and the plane threads of the three U-shaped wheel frames are meshed with the plane threads of the driven large bevel gear; 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 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 amplified by the composite amplitude transformer and then transmitted to the driving force transfer rod, the driven force transfer rod and the extension spring drive the sliding block seat to perform ultrasonic frequency transverse vibration along the box shell together (in a vibration period, when the driving force transfer rod moves forwards, the driving force transfer rod pushes the driven force transfer rod to move leftwards, the driven force transfer rod pushes the sliding block seat to move leftwards along the box shell, the extension spring extends from the vibration period, when the driving force transfer rod moves backwards, the extension spring drives the sliding block seat to move rightwards along the box shell), the sliding block seat drives the tool bit to perform ultrasonic frequency transverse vibration through the tool handle, and the tool bit stamps 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, the expansion radius of the three supporting rollers can be adjusted through the outer square T-shaped wrench, and therefore 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: three gear shafts are reversely (positively) screwed through the external square T-shaped wrench, the three gear shafts drive the three driving small bevel gears to reversely (positively) rotate, the three driving small bevel gears drive the driven large bevel gear to reversely (positively) rotate, and the driven large bevel gear drives the three U-shaped wheel carriers to outwardly expand (inwardly contract) so as to increase (reduce) the expansion radius of the three supporting rollers.
Based on the process, compared with the existing ultrasonic micro-pit processing device, the ultrasonic micro-pit processing device based on the cambered surface contact type force transmission structure has the following advantages: firstly, the invention does not adopt a direct-connection type force transmission structure, but adopts a cambered surface contact type force transmission structure consisting of a driving force transmission rod, a driven force transmission rod and an extension spring, so that the ultrasonic frequency longitudinal vibration is converted into the ultrasonic frequency transverse vibration, the radial size of the cylinder sleeve is effectively reduced, the cylinder sleeve is suitable for processing the cylinder sleeve with the small cylinder diameter, 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. 2.
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 driving force transmission rod, 111-a slider seat, 112-a knife handle, 113-a knife head, 114-a distance adjusting nut, 115-a driven force transmission rod, 116-a tension spring, 117-a heat radiation strip hole, 118-a butt joint round hole, 119-a positioning bolt, 201-a supporting shaft, 202-a supporting sleeve, 203-a gear shaft, 204-a U-shaped wheel carrier, 205-a roller shaft, 206-a locking nut, 207-a supporting roller, 208-a central hole, 209-a radial sliding groove, 210-a shaft sleeve and 301-a seat plate, 302-L-shaped support rod, 303-split hoop and 304-installation through hole.
Detailed Description
The ultrasonic micro-pit processing device based on the cambered surface contact 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 107, a second pipe shell 108, a box shell 109, a driving transmission rod 110, a slider seat 111, a knife handle 112, a knife head 113, a distance adjusting nut 114, a driven transmission rod 115 and an extension spring 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 active 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; an arc-shaped chamfer surface is arranged between the front end surface and the left side surface of the front section square rod; 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 right side surface of the sliding block seat 111 is provided with a plurality of fifth blind screw holes which are arranged at equal intervals along the circumferential direction; 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 driven dowel bar 115 is a square bar; a third positioning convex ring extends from the left end of the side surface of the driven dowel bar 115; the end face of the third positioning convex ring is provided with a plurality of positioning through holes which are arranged at equal intervals along the circumferential direction in a penetrating way, and the number of the positioning through holes is consistent with that of the fifth blind screw holes; a positioning bolt 119 penetrates through each positioning through hole, and the tail end of each positioning bolt 119 is screwed into each fifth blind screw hole in a one-to-one correspondence manner; an arc-shaped chamfer surface is arranged between the right end surface and the rear side surface of the driven dowel bar 115, and the arc-shaped chamfer surface of the driven dowel bar 115 is in tangential contact with the arc-shaped chamfer surface of the driving dowel bar 110; two ends of the extension spring 116 are respectively fixed with the rear part of the right inner side of the box shell 109 and the rear part of the right side of the slider seat 111;
the centering support mechanism comprises a support shaft 201, a support sleeve 202, a gear shaft 203, a U-shaped wheel frame 204, a roller shaft 205, a lock nut 206 and a support roller 207;
the support shaft 201 is a hollow shaft; a fourth positioning convex ring extends from the rear end of the outer side surface of the supporting shaft 201; the rear end face of the fourth 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 fifth positioning convex ring is arranged at the front end of the outer side surface of the supporting shaft 201 in an extending manner; the front end of the supporting sleeve 202 is provided with an end wall, and the rear end is provided with an opening; the rear end face of the supporting sleeve 202 is fixed with the front end face of the fifth positioning convex ring, and the center line of the supporting sleeve 202 is superposed with the center line of the supporting shaft 201; the middle part of the side wall of the supporting sleeve 202 is provided with three assembling holes which are arranged at equal intervals along the circumferential direction in a penetrating way; the front part of the side wall of the supporting sleeve 202 is provided with three longitudinal bar holes which are arranged at equal intervals along the circumferential direction in a penetrating way; a central hole 208 is formed in the center of the front end wall of the support sleeve 202 in a penetrating manner; the front end wall of the supporting sleeve 202 is provided with three radial strip holes which are arranged at equal intervals along the circumferential direction in a penetrating manner; the inner ends of the three radial bar holes are all communicated with the central hole 208; the outer ends of the three radial strip holes are communicated with the front ends of the three longitudinal strip holes in a one-to-one correspondence manner, and the three radial strip holes and the three longitudinal strip holes jointly form three L-shaped mounting holes; the hole wall of each radial strip hole is provided with a pair of symmetrical radial convex edges in an extending way; the inner side surface of the support sleeve 202 is rotatably assembled with a driven large bevel gear, and the front surface of the driven large bevel gear faces backwards; the back of the driven large bevel gear is provided with a plane thread; the number of the gear shafts 203 is three; the side surfaces of the three gear shafts 203 are provided with external threads, and the three gear shafts 203 penetrate through the three assembling holes in a one-to-one correspondence manner; the inner ends of the side surfaces of the three gear shafts 203 are respectively fixedly provided with a driving small bevel gear, and the three driving small bevel gears are all meshed with a driven large bevel gear; the outer end faces of the three gear shafts 203 are respectively provided with an inner square blind hole; the number of the U-shaped wheel frames 204 is three; the bottom edges of the three U-shaped wheel frames 204 are longitudinally arranged; the side edges of the three U-shaped wheel frames 204 are all arranged in the radial direction; a pair of symmetrical radial sliding grooves 209 are formed in the side surface of the bottom edge of each U-shaped wheel frame 204; the bottom edges of the three U-shaped wheel frames 204 correspondingly penetrate through the three L-shaped mounting holes one by one, and the three pairs of radial chutes 209 are correspondingly inosculated with the three pairs of radial ribs one by one; the rear outer side surfaces of the three U-shaped wheel frames 204 are provided with plane threads, and the plane threads of the three U-shaped wheel frames 204 are meshed with the plane threads of the driven large bevel gear; the outer ends of the front side and the rear side of the three U-shaped wheel frames 204 are respectively provided with an assembly through hole which is communicated with the front and the rear; the number of the roller shafts 205 is three; the rear parts of the three roller shafts 205 penetrate through three assembly through holes on the rear side edges of the three U-shaped wheel frames 204 in a one-to-one correspondence manner; the front parts of the three roller shafts 205 penetrate through three assembling through holes on the front side edges of the three U-shaped wheel frames 204 in a one-to-one correspondence manner; the rear ends of the side surfaces of the three roller shafts 205 are respectively provided with a limiting convex ring in an extending way; the front parts of the side surfaces of the three roller shafts 205 are provided with external threads; the number of the lock nuts 206 is three; the three locking nuts 206 are screwed on the front parts of the side surfaces of the three roller shafts 205 in a one-to-one correspondence manner, and the three locking nuts 206 tightly press the front outer side surfaces of the three U-shaped wheel frames 204 in a one-to-one correspondence manner; the number of the supporting rollers 207 is three; the three support rollers 207 are rotatably mounted on the lateral middle portions of the three roller shafts 205 in a one-to-one correspondence.
The front parts of the side surfaces of the three roller shafts 205 are respectively fixedly provided with a shaft sleeve 210; the front end surfaces of the three shaft sleeves 210 are in one-to-one corresponding contact with the front inner side surfaces of the three U-shaped wheel frames 204; the rear end surfaces of the three bushings 210 are in one-to-one contact with the front end surfaces of the three support rollers 207.
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 number of the split hoops 303 is two; the two split hoops 303 are respectively hooped at the middle part and the rear part of the outer side surface of the first tube shell 101, and the upper half hoops of the two split hoops 303 are respectively fixed at the front end and the middle part of the lower side surface of the longitudinal section of the L-shaped strut 302.
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 extension spring 116 is a cylindrical spiral extension spring; the supporting roller 207 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 cambered surface contact 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 driving force transfer rod (110), a sliding block seat (111), a knife handle (112), a knife head (113), a distance adjusting nut (114), a driven force transfer rod (115) and a tension spring (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 active 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); an arc-shaped chamfer surface is arranged between the front end surface and the left side surface of the front section square rod; 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 right side surface of the sliding block seat (111) is provided with a plurality of fifth blind screw holes which are arranged at equal intervals along the circumferential direction; 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 driven dowel bar (115) is a square bar; a third positioning convex ring extends from the left end of the side surface of the driven dowel bar (115); the end face of the third positioning convex ring is provided with a plurality of positioning through holes which are arranged at equal intervals along the circumferential direction in a penetrating way, and the number of the positioning through holes is consistent with that of the fifth blind screw holes; a positioning bolt (119) penetrates through each positioning through hole, and the tail end of each positioning bolt (119) is screwed into each fifth blind screw hole in a one-to-one correspondence manner; an arc-shaped chamfer surface is arranged between the right end surface and the rear side surface of the driven dowel bar (115), and the arc-shaped chamfer surface of the driven dowel bar (115) is in tangential contact with the arc-shaped chamfer surface of the driving dowel bar (110); two ends of the extension spring (116) are respectively fixed with the rear part of the right inner side surface of the box shell (109) and the rear part of the right side surface of the sliding block seat (111);
the centering support mechanism comprises a support shaft (201), a support sleeve (202), a gear shaft (203), a U-shaped wheel frame (204), a roller shaft (205), a locking nut (206) and a support roller (207);
the supporting shaft (201) is a hollow shaft; a fourth positioning convex ring is arranged at the rear end of the outer side surface of the supporting shaft (201) in an extending manner; the rear end face of the fourth 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); a fifth positioning convex ring is arranged at the front end of the outer side surface of the supporting shaft (201) in an extending manner; the front end of the supporting sleeve (202) is provided with an end wall, and the rear end is provided with an opening; the rear end face of the supporting sleeve (202) is fixed with the front end face of the fifth positioning convex ring, and the center line of the supporting sleeve (202) is superposed with the center line of the supporting shaft (201); the middle part of the side wall of the supporting sleeve (202) is provided with three assembling holes which are arranged at equal intervals along the circumferential direction in a penetrating way; the front part of the side wall of the supporting sleeve (202) is provided with three longitudinal bar holes which are arranged at equal intervals along the circumferential direction in a penetrating way; a central hole (208) is formed in the center of the front end wall of the supporting sleeve (202) in a penetrating manner; the front end wall of the supporting sleeve (202) is provided with three radial strip holes which are arranged at equal intervals along the circumferential direction in a penetrating way; the inner ends of the three radial strip holes are communicated with the central hole (208); the outer ends of the three radial strip holes are communicated with the front ends of the three longitudinal strip holes in a one-to-one correspondence manner, and the three radial strip holes and the three longitudinal strip holes jointly form three L-shaped mounting holes; the hole wall of each radial strip hole is provided with a pair of symmetrical radial convex edges in an extending way; the inner side surface of the support sleeve (202) is rotatably assembled with a driven large bevel gear, and the front surface of the driven large bevel gear faces backwards; the back of the driven large bevel gear is provided with a plane thread; the number of the gear shafts (203) is three; the side surfaces of the three gear shafts (203) are respectively provided with an external thread, and the three gear shafts (203) penetrate through the three assembling holes in a one-to-one correspondence manner; the inner ends of the side surfaces of the three gear shafts (203) are respectively fixedly provided with a driving small bevel gear, and the three driving small bevel gears are all meshed with a driven large bevel gear; the outer end faces of the three gear shafts (203) are respectively provided with an inner square blind hole; the number of the U-shaped wheel frames (204) is three; the bottom edges of the three U-shaped wheel frames (204) are longitudinally arranged; the side edges of the three U-shaped wheel frames (204) are all arranged in a radial direction; the side surface of the bottom edge of each U-shaped wheel carrier (204) is provided with a pair of mutually symmetrical radial sliding grooves (209); the bottom edges of the three U-shaped wheel frames (204) correspondingly penetrate through the three L-shaped mounting holes one by one, and the three pairs of radial sliding grooves (209) are correspondingly inosculated with the three pairs of radial convex edges one by one; the rear outer side surfaces of the three U-shaped wheel frames (204) are provided with plane threads, and the plane threads of the three U-shaped wheel frames (204) are meshed with the plane threads of the driven large bevel gear; the outer ends of the front side and the rear side of the three U-shaped wheel frames (204) are respectively provided with an assembly through hole which is communicated with the front and the rear; the number of the roller shafts (205) is three; the rear parts of the three roller shafts (205) penetrate through three assembly through holes on the rear side edges of the three U-shaped wheel frames (204) in a one-to-one correspondence manner; the front parts of the three roller shafts (205) correspondingly penetrate through three assembling through holes on the front side edges of the three U-shaped wheel frames (204) one by one; the rear ends of the side surfaces of the three roller shafts (205) are respectively provided with a limiting convex ring in an extending way; the front parts of the side surfaces of the three roller shafts (205) are provided with external threads; the number of the locking nuts (206) is three; the three locking nuts (206) are screwed on the front parts of the side surfaces of the three roller shafts (205) in a one-to-one correspondence manner, and the three locking nuts (206) press the front outer side surfaces of the three U-shaped wheel frames (204) in a one-to-one correspondence manner; the number of the supporting rollers (207) is three; the three supporting rollers (207) are rotatably assembled in the middle of the side surfaces of the three roller shafts (205) in a one-to-one correspondence manner.
2. The ultrasonic micro-pit machining device based on the cambered surface contact type force transmission structure according to claim 1, is characterized in that: the front parts of the side surfaces of the three roller shafts (205) are respectively fixedly provided with a shaft sleeve (210); the front end surfaces of the three shaft sleeves (210) are in one-to-one corresponding contact with the front inner side surfaces of the three U-shaped wheel frames (204); the rear end surfaces of the three shaft sleeves (210) are in one-to-one corresponding contact with the front end surfaces of the three supporting rollers (207).
3. The ultrasonic micro-pit machining device based on the cambered surface contact type force transmission structure according to claim 1, 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 number of the split hoops (303) is two; the two split hoops (303) are respectively hooped in the middle and the rear of the outer side of the first pipe shell (101), and the upper half hoops of the two split hoops (303) are respectively fixed in the front and the middle of the lower side of the longitudinal section of the L-shaped support rod (302).
4. The ultrasonic micro-pit machining device based on the cambered surface contact type force transmission structure according to claim 1, 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 extension spring (116) adopts a cylindrical spiral extension spring; the supporting rollers (207) are made of flexible wear-resistant resin materials.
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| CN116099788B (en) * | 2023-02-25 | 2023-08-18 | 亚美达(兰陵)汽配有限公司 | Car wheel hub bearing flange surface treatment equipment |
| 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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| CN101054702B (en) * | 2007-02-02 | 2010-12-15 | 哈尔滨工业大学 | Method for manufacturing dimple on blood vessel metal support |
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| CN1326825A (en) * | 2000-06-02 | 2001-12-19 | 杭州电子工业学院 | Surface micro-pit supersonic making method |
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| CN104191156A (en) * | 2014-09-12 | 2014-12-10 | 哈尔滨工业大学 | Method for using ultrasonic cavitation to machine panel surface micro-pits |
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