CN220970770U - Ultrasonic main shaft unit with power receiving module and shaft core integrated - Google Patents

Abstract

The utility model discloses a power receiving module and shaft core integrated ultrasonic main shaft unit which comprises a shaft core, wherein a vibrator assembly accommodating cavity for accommodating a vibrator assembly and a power receiving module accommodating cavity for accommodating a power receiving module are sequentially arranged at the front end of the shaft core, a first wire passing groove is formed in the side wall of the vibrator assembly accommodating cavity, a first wire passing hole is formed between the vibrator assembly accommodating cavity and the power receiving module accommodating cavity, the vibrator assembly sequentially penetrates through the first wire passing groove through a wire and is connected with the power receiving module, a body is arranged outside the shaft core, a power supply shell accommodating cavity for accommodating a power supply shell is arranged between the body and the shaft core, and a power supply module is arranged in the power supply shell. According to the utility model, the vibrator assembly accommodating cavity is arranged at the center of the front end of the shaft core, the power receiving module accommodating cavity is arranged at the outer edge of the shaft core, so that the space for accommodating the power receiving module is ensured to the greatest extent, and meanwhile, the influence on the arrangement of the loose broach structure due to occupation of the inner cavity of the middle and rear sections of the shaft core is avoided.

Description

Ultrasonic main shaft unit with power receiving module and shaft core integrated

Technical Field

The utility model relates to the technical field of mechanical precision machining, in particular to an ultrasonic main shaft unit integrating a power receiving module and a shaft core.

Background

The ultrasonic processing is widely applied to the processing of nonmetallic hard brittle materials and the processing of micro holes and deep holes because the cutter tip has ultrasonic energy.

The main structure of the ultrasonic processing is provided with a knife handle, a transducer component and a power supply module. The transducer assembly is often arranged on the cutter handle, the power supply module is a slip ring in early stage, but the slip ring is easy to wear due to high rotating speed of the main shaft and is gradually replaced by the wireless induction module, the wireless induction module comprises the power supply module and the power receiving module, and the power supply module is arranged on the main shaft and also arranged on a fixed transmitting frame outside the main shaft; the power receiving module is usually arranged on the cutter handle and also arranged inside the main shaft. The power receiving module is arranged on the knife handle and is generally called an ultrasonic knife handle. When the power receiving module is arranged inside the main shaft, the power receiving module can be selectively arranged at the front end, the middle part and the rear end, and the power receiving module has a good accommodating space when arranged at the rear end, but a long and thin pore channel which is convenient for the power receiving module to lead out a lead wire to pass through is often required to be arranged on the shaft core from the power receiving module to the vibrator assembly, so that a certain space of the shaft core is occupied, and the setting and the operation of the loose broach structure are influenced. However, when the power receiving module is arranged at the front end or the middle part, the problem of the long and thin wire passing hole is not required to be considered, but the space for accommodating the power receiving module is very limited.

The patent number CN107983974B discloses an automatic tool changing ultrasonic electric spindle using a conventional tool handle, the structure is characterized in that a power receiving module is arranged at the rear end of a shaft core, 2 deep holes symmetrical through the shaft core are connected with a vibrator assembly at the front end of the shaft core, the structure needs to process the deep holes of the shaft core, and meanwhile, the space of the inner cavity of the shaft core is influenced due to the existence of the deep holes.

The patent number CN104942710A discloses an ultrasonic electric spindle, the patent number CN115156572A discloses an ultrasonic spindle, the lead wire led out from the power receiving module passes through a radial duct at the rear end of the shaft core, then enters into an axial duct where the central line of the shaft core is positioned, and then is connected with the front-end vibrator assembly along the duct. On the other hand, the power receiving module at the rear end is in a cantilever beam state, so that the natural frequency of the main shaft rotor system can be reduced.

Disclosure of utility model

In order to solve the defects in the prior art, the utility model provides the ultrasonic main shaft unit with the power receiving module and the shaft core, wherein the vibrator assembly accommodating cavity is arranged in the center of the front end of the shaft core, the power receiving module accommodating cavity is arranged at the outer edge part of the shaft core, the space of the shaft core for accommodating the power receiving module is ensured to the greatest extent, and meanwhile, the condition that the inner cavity of the middle and rear sections of the shaft core is occupied and the setting of a loose broach structure is influenced is avoided.

The utility model aims to achieve the aim, and the aim is achieved by the following technical scheme:

The utility model provides a receive electric module and axle core integral type supersound main shaft unit, includes the axle core, the front end of axle core sets gradually the oscillator subassembly that holds the oscillator subassembly hold the chamber, hold the electric module that receives the electric module and hold the chamber, the oscillator subassembly holds the lateral wall in chamber and sets up first wire casing, oscillator subassembly holds the chamber and receives and hold and set up first wire hole between the chamber, the oscillator subassembly passes first wire casing, first wire hole in proper order through the wire and is connected with the electric module that receives, the outside of axle core sets up the body, have the power supply casing that holds the power supply casing between body and the axle core and hold the chamber, set up power supply module in the power supply casing.

An axial adjusting mechanism for adjusting the gap between the power supply shell and the power receiving module is arranged between the body and the power supply shell.

The axial adjusting mechanism comprises an adjusting through hole and a set screw which are arranged on the body, a threaded hole which is arranged on the power supply shell, and a long screw which is matched with the threaded hole, wherein the adjusting through hole can be penetrated by the long screw, the length of the adjusting through hole along the axial direction of the body is larger than the outer diameter of the long screw, and the set screw is in threaded connection with the body and can be in interference connection with the power supply shell.

The power supply shell is provided with a limiting plane at a position corresponding to the set screw, and the length of the limiting plane along the axial direction of the body is greater than the outer diameter of the set screw.

The number of the threaded holes, the adjusting through holes and the long screws is 2, and the threaded holes, the adjusting through holes and the long screws are symmetrically arranged along the body.

The limiting plane is of a groove structure, and the number of the set screws and the number of the limiting planes are consistent and are multiple, and the limiting planes are uniformly distributed along the circumferential direction of the body.

The outer fringe of axle core has step structure, is first step, second step, third step from the front end to the rear end in proper order, the external diameter of second step is greater than the external diameter of first step, the external diameter of first step is greater than the external diameter of third step, receive electric module and hold the chamber setting in second step department, just receive electric module and hold the opening in chamber towards one side of power module.

The third step department of axle core sets gradually rotor and stator, the front end of axle core is connected with the body rotation through preceding bearing group, the rear end of axle core is connected with the back bearing frame through back bearing group.

The power supply casing cover is established in this, the one end that power supply casing is close to the power module sets up the power module and holds the chamber, the one end that power module was kept away from to the power supply casing sets up the ring channel, power module holds and sets up the second wire passing hole on the diapire that shares of chamber and ring channel, set up the second wire passing groove on the lateral wall of ring channel, set up the third wire passing hole with the second wire passing groove intercommunication on the lateral wall of body, set up the fourth wire passing hole on the back bearing frame, power module passes second wire passing hole, second wire passing groove, third wire passing hole, fourth wire passing hole in proper order through the wire and is connected with outside ultrasonic power supply.

And the shaft core is provided with a dynamic balance hole.

Compared with the prior art, the utility model has the beneficial effects that:

1. The ultrasonic main shaft unit is characterized in that a power receiving module is arranged at a position, close to a vibrator assembly, of a shaft core, a shell for accommodating the power receiving module is designed integrally with the shaft core, a vibrator assembly accommodating cavity for accommodating the vibrator assembly is arranged at the center of the front end of the shaft core, a power receiving module accommodating cavity for accommodating the power receiving module is arranged at the outer edge of the shaft core, the space of the cavity for accommodating the power receiving module is ensured to the greatest extent, and meanwhile, the condition that the cavity occupies the inner cavity of the middle and rear sections of the shaft core and the arrangement of a loose broach structure is influenced is avoided.

2. The first wire passing hole is arranged between the vibrator assembly accommodating cavity and the power receiving module accommodating cavity, so that the lead-out wires of the power receiving module are connected to the transducer assembly of the vibrator assembly, and therefore machining of the long and thin holes when the traditional power receiving module is arranged at the rear end of the shaft core is avoided, the shaft core structure is greatly simplified, and the inner cavity space of the middle and rear sections of the shaft core is saved.

3. The axial adjusting mechanism can adjust the gap between the power supply shell and the power receiving module, so that the maximization of wireless energy transmission efficiency can be realized.

4. According to the axial adjusting mechanism, 2 symmetrical long screws are in threaded holes of the power supply shell, and meanwhile, the 2 long screws are axially acted, so that the power supply shell sleeved in the inner cavity of the body axially slides, the purpose of adjusting a gap between the power supply module and the power receiving module is achieved, the adjusting mode is simple and convenient, after the gap between the power supply module and the power receiving module is adjusted, the power supply shell is fastened through the set screw in the body, and after the power supply module and the power receiving module are fastened, the long screws are unscrewed, and the adjusting through holes are blocked, so that the normal spindle can be used.

Drawings

FIG. 1 is a schematic cross-sectional view of the inventive mandrel.

Fig. 2 is one of the schematic cross-sectional structural views of the present utility model.

FIG. 3 is a second schematic cross-sectional view of the present utility model.

Fig. 4 is a schematic structural view of the power supply housing of the present utility model.

Fig. 5 is a schematic cross-sectional view of the power supply housing of the present utility model.

Detailed Description

The utility model will be further described with reference to the accompanying drawings and specific embodiments. It is to be understood that these examples are illustrative of the present utility model and are not intended to limit the scope of the present utility model. Further, it will be understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the utility model, and such equivalents are intended to fall within the scope of the utility model as defined by the claims.

The utility model provides a receive electric module and axle core integral type supersound main shaft unit, includes axle core 1, the front end of axle core 1 sets gradually the oscillator subassembly that holds oscillator subassembly 5 hold chamber 11, hold the power module that receives electric module 4 hold chamber 12, receive electric module 4 can hold chamber 12 through plastic envelope technology and power module and link firmly in an organic wholely, oscillator subassembly 5 includes transducer assembly 51, receives electric module 4 and includes electromagnetic core 41 and electric coil 42, the lateral wall that oscillator subassembly held chamber 11 sets up first wire groove 13, oscillator subassembly holds chamber 11 and receives and sets up first wire through hole 14 between the electric module holds chamber 12, oscillator subassembly 5 passes first wire groove 13, first wire through hole 14 in proper order and is connected with receiving electric module 4 through wire 52, the outside of axle core 1 sets up body 2, have the power supply housing that holds power supply housing 3 between body 2 and the axle core 1 and hold the chamber, set up power module in the power supply housing 3, power supply module includes power core 38 and power coil 39. The power supply module is fixedly connected with the power supply shell 3 into a whole through a plastic packaging process, and the power supply shell 3 is sleeved in a power supply shell accommodating cavity between the body 2 and the shaft core 1 and can axially slide.

The ultrasonic main shaft unit of the utility model arranges the power receiving module 4 at the position of the shaft core 1 close to the vibrator assembly 5, and simultaneously integrates the shell accommodating the power receiving module with the shaft core 1, the vibrator assembly accommodating cavity 11 for accommodating the vibrator assembly 5 is arranged at the center of the front end of the shaft core 1, the power receiving module accommodating cavity 12 for accommodating the power receiving module 4 is arranged at the outer edge of the shaft core 1, the space of the cavity for accommodating the power receiving module is ensured to the greatest extent, and meanwhile, the occupation of the inner cavity of the middle and rear sections of the shaft core 1 is avoided, and the influence on the arrangement of the loose broach structure is avoided; the first wire passing hole 14 is arranged between the vibrator assembly accommodating cavity 11 and the power receiving module accommodating cavity 12, so that the lead-out wires 52 of the power receiving module 4 are connected to the transducer assembly of the vibrator assembly, the processing of the long and thin holes when the traditional power receiving module 4 is arranged at the rear end of the shaft core 1 is avoided, the structure of the shaft core 1 is greatly simplified, and the inner cavity space of the middle and rear sections of the shaft core 1 is saved.

Further, an axial adjusting mechanism for adjusting the gap between the power supply housing 3 and the power receiving module is arranged between the body 2 and the power supply housing 3. The axial adjusting mechanism comprises an adjusting through hole 21 and a set screw 22 which are arranged on the body 2, a threaded hole 31 which is arranged on the power supply shell 3, and a long screw 32 which is matched with the threaded hole 31, wherein the adjusting through hole 21 can be penetrated by the long screw 32, the length of the adjusting through hole 21 along the axial direction of the body 2 is larger than the outer diameter of the long screw 32, and the set screw 22 is in threaded connection with the body 2 and can be in interference connection with the power supply shell 3. After penetrating the adjusting through hole 21 with the long screw 32, the spiro union is in the screw hole 31 of power supply casing 3, acts on long screw 32 axial to can make the power supply casing 3 that the cover was located the body 2 inner chamber slide along the axial, thereby reach power supply module and the purpose of receiving the power module clearance adjustment, realize wireless energy transmission efficiency's maximize. After the gap between the power supply module and the power receiving module is adjusted, the power supply shell 3 is fastened through the set screw 22 screwed on the body 2, and after the power supply shell is fastened, the long screw 32 is unscrewed, and the adjusting through hole 21 is blocked, so that the normal spindle can be used.

Further, a limit plane 33 is disposed at a position of the power supply housing 3 corresponding to the set screw 22, and a length of the limit plane 33 along the axial direction of the body 2 is greater than an outer diameter of the set screw 22. The limiting plane 33 is a groove structure, and the number of the set screws 22 and the number of the limiting planes 33 are identical and are multiple, and the limiting planes are uniformly distributed along the circumferential direction of the body 2. The number of the set screws 22 and the limit planes 33 can be 2, 3, 4 and the like, the set screws 22 are tightly propped against the groove structure of the limit planes 33, the fastening of the power supply shell 3 is realized, the set screws 22 and the limit planes 33 are uniformly distributed, and the power supply shell 3 can be stably fixed.

Further, the number of the threaded holes 31, the adjusting through holes 21 and the long screws 32 is2, and the two screws are symmetrically arranged along the body 2. Adopt 2 symmetrical long screws 32, the spiro union is in the screw hole 31 of power supply casing 3, simultaneously to 2 long screws 32 axial action, makes the power supply casing 3 of cover locating body 2 inner chamber slide along the axial to reach power supply module and the purpose of receiving electric module clearance adjustment, realize wireless energy transmission efficiency's maximize. After the gap between the power supply module and the power receiving module is adjusted, the power supply shell 3 is fastened through the set screw 22 screwed on the body 2, and after the power supply shell is fastened, the long screw 32 is unscrewed, and the adjusting through hole 21 is blocked, so that the normal spindle can be used.

Further, the outer edge of the shaft core 1 is provided with a step structure, a first step 15, a second step 16 and a third step 17 are sequentially arranged from the front end to the rear end, the outer diameter of the second step 16 is larger than that of the first step 15, the outer diameter of the first step 15 is larger than that of the third step 17, the power receiving module accommodating cavity 12 is arranged at the second step 16, and the opening of the power receiving module accommodating cavity 12 faces one side of the power supply module.

Further, a rotor 61 and a stator 62 are sequentially arranged at the third step 17 of the shaft core 1, the front end of the shaft core 1 is rotatably connected with the body 2 through a front bearing group 71, and the rear end of the shaft core 1 is connected with the rear bearing seat 7 through a rear bearing group 72. The front end of the shaft core 1 is sequentially provided with a front end cover 81, a front end flange 82, a front lock nut 83 and a front bearing group 71 from outside to inside, the front bearing group 71 is sleeved in an inner cavity of the front end of the body 2, an inner ring of the front bearing group 71 is sleeved on the front end of the shaft core 1, the front lock nut 83 is in threaded connection with the shaft core 1 and pre-tightens the front bearing group 71, the front end flange 82 is in threaded connection with the inner cavity of the body 2, and the front end flange 82 is provided with the front lock nut 83 in a clearance mode to fix the front bearing group 71. The rear end of the shaft core 1 is provided with a rear lock nut 84 and a rear bearing seat 7 which are sequentially arranged from outside to inside, the stator 62 is sleeved and fixedly connected with the inner cavity of the body 2, the rear bearing seat 7 is positioned on one side of the rear bearing seat 7 away from the rear lock nut 84, the rear bearing seat 7 is sleeved and fixedly connected with the body 2, and the outer ring of the rear bearing group 72 is sleeved and arranged in the inner cavity of the rear bearing seat 7 to be in a floating state. The rotor 61 is sleeved outside the shaft core 11, and a motor spacer 63 is arranged between the rotor and the rear bearing set 71.

Further, the power supply housing 3 cover is established in body 2, the one end that power supply housing 3 is close to the power receiving module sets up power supply module and holds chamber 34, the one end that power supply housing 3 kept away from the power receiving module sets up annular groove 35, power supply module holds and sets up second wire passing hole 36 on the sharing diapire of chamber 34 and annular groove 35, set up second wire passing groove 37 on the lateral wall of annular groove 35, set up the third wire passing hole 23 with second wire passing groove 37 intercommunication on the lateral wall of body 2, set up fourth wire passing hole 73 on the back bearing frame 7, power supply module passes second wire passing hole 36, second wire passing groove 37, third wire passing hole 23, fourth wire passing hole 73 in proper order through the wire and is connected with outside ultrasonic power supply.

The second step 16 of the shaft core 1 has the largest outer diameter, a boss structure is formed, the installation of a power receiving module is facilitated, the inner cavity at the first step 15 is a vibrator assembly accommodating cavity 11, the installation of a vibrator assembly is facilitated, the outer diameter at the third step 17 is the smallest, the arrangement of the stator 62 and the rotor 61 is facilitated, the space of the cavity for accommodating the power receiving module is ensured to the greatest extent, and meanwhile, the condition that the inner cavity at the rear section in the shaft core 1 is occupied and the arrangement of a loose broach structure is influenced is avoided.

Further, a dynamic balance hole 18 is provided on the shaft core 1, and the dynamic balance hole 18 is located at a position of the shaft core 1 close to the power receiving module.

Claims (10)

1. The utility model provides a receive electric module and axle core integral type supersound main shaft unit, includes the axle core, its characterized in that, the front end of axle core sets gradually the oscillator subassembly that holds the oscillator subassembly hold the chamber, hold the power module that receives electric module and hold the chamber, the oscillator subassembly holds the lateral wall in chamber and sets up first wire groove, oscillator subassembly holds the chamber and receives and set up first wire hole between the electric module holds the chamber, oscillator subassembly passes first wire groove, first wire hole in proper order through the wire and is connected with power module, the outside of axle core sets up the body, have the power supply casing that holds the power supply casing between body and the axle core and hold the chamber, set up the power module in the power supply casing.

2. The ultrasonic spindle unit with the integrated power receiving module and the spindle unit as set forth in claim 1, wherein an axial adjusting mechanism for adjusting a gap between the power supply housing and the power receiving module is disposed between the body and the power supply housing.

3. The ultrasonic spindle unit with the integrated power receiving module and the spindle unit according to claim 2, wherein the axial adjusting mechanism comprises an adjusting through hole and a set screw which are arranged on the body, a threaded hole which is arranged on the power supply shell, and a long screw which is adapted to the threaded hole, the adjusting through hole can be penetrated by the long screw, the length of the adjusting through hole along the axial direction of the body is larger than the outer diameter of the long screw, and the set screw is in threaded connection with the body and can be in abutting connection with the power supply shell.

4. The ultrasonic spindle unit with the integrated power receiving module and the spindle unit as claimed in claim 3, wherein a limiting plane is arranged at a position of the power supply shell corresponding to the set screw, and the length of the limiting plane along the axial direction of the body is larger than the outer diameter of the set screw.

5. The ultrasonic spindle unit with the integrated power receiving module and the spindle unit as claimed in claim 3, wherein the number of the threaded holes, the adjusting through holes and the long screws is 2, and the threaded holes, the adjusting through holes and the long screws are symmetrically arranged along the body.

6. The ultrasonic spindle unit with the integrated power receiving module and the spindle unit as set forth in claim 4, wherein the limiting planes are of a groove structure, and the number of the set screws and the number of the limiting planes are identical and are multiple, and the set screws and the limiting planes are uniformly distributed along the circumferential direction of the body.

7. The ultrasonic spindle unit integrated with the power receiving module and the spindle as set forth in claim 1, wherein the outer edge of the spindle has a stepped structure, a first step, a second step and a third step are sequentially arranged from the front end to the rear end, the outer diameter of the second step is larger than that of the first step, the outer diameter of the first step is larger than that of the third step, the power receiving module accommodating cavity is arranged at the second step, and an opening of the power receiving module accommodating cavity faces one side of the power supplying module.

8. The ultrasonic spindle unit integrating the power receiving module and the spindle as set forth in claim 7, wherein the rotor and the stator are sequentially disposed at the third step of the spindle, the front end of the spindle is rotatably connected with the body through a front bearing set, and the rear end of the spindle is connected with the rear bearing block through a rear bearing set.

9. The ultrasonic spindle unit with integrated power receiving module and spindle as set forth in claim 8, wherein the power supply housing is sleeved in the body, a power supply module accommodating cavity is formed in one end of the power supply housing, which is close to the power receiving module, an annular groove is formed in one end of the power supply housing, which is far away from the power receiving module, a second wire passing hole is formed in a shared bottom wall of the power supply module accommodating cavity and the annular groove, a second wire passing groove is formed in a side wall of the annular groove, a third wire passing hole communicated with the second wire passing groove is formed in a side wall of the body, a fourth wire passing hole is formed in the rear bearing seat, and the power supply module sequentially penetrates through the second wire passing hole, the second wire passing groove, the third wire passing hole and the fourth wire passing hole to be connected with an external ultrasonic power supply.

10. The ultrasonic spindle unit integrated with the power receiving module and the spindle as set forth in claim 1, wherein a dynamic balance hole is provided on the spindle.