CN112428027A - Magnetic particle grinding device and method for grinding inner and outer surfaces of different pipe diameters by ultrasonic waves - Google Patents
Magnetic particle grinding device and method for grinding inner and outer surfaces of different pipe diameters by ultrasonic waves Download PDFInfo
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- CN112428027A CN112428027A CN202011355522.5A CN202011355522A CN112428027A CN 112428027 A CN112428027 A CN 112428027A CN 202011355522 A CN202011355522 A CN 202011355522A CN 112428027 A CN112428027 A CN 112428027A
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- magnetic pole
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- tubular workpiece
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
- B24B1/002—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes using electric current
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
- B24B1/04—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes subjecting the grinding or polishing tools, the abrading or polishing medium or work to vibration, e.g. grinding with ultrasonic frequency
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The utility model provides a magnetic particle grinder and method of different pipe diameters internal and external surfaces are ground to ultrasonic wave, includes work platform, main shaft rotation driving device, fixing device, reciprocating motion device, ultrasonic vibration grinder, the work platform that main shaft rotation driving device installed is provided with the track along the main shaft axial on work platform, reciprocating motion device can follow rail motion, fixing device can follow main shaft radial movement on reciprocating motion device, ultrasonic vibration grinder installs on fixing device, and the tubulose work piece is installed on main shaft rotation driving device's triangle chuck, the last supplementary magnetic pole of ultrasonic vibration device is installed outside the tubulose work piece, and the inside magnetic pole on the ultrasonic vibration device is radially arranged along the tubulose work piece. The invention can realize the compound motion of the magnetic poles, grind the magnetic particles on the inner and outer surfaces of the straight pipes with different pipe diameters, improve the grinding and polishing quality of the inner and outer surfaces of the pipe fittings, improve the processing efficiency and reduce the processing cost.
Description
Technical Field
The invention relates to the technical field of magnetic particle grinding and finishing processing, in particular to a magnetic particle grinding device and a method for ultrasonically grinding inner and outer surfaces with different pipe diameters.
Background
The common processing method of the pipe fittings is stamping forming, so that the inner surface and the outer surface of a workpiece inevitably generate a plurality of defects such as cracks, burrs and the like. In our daily life, round pipes with different pipe diameters are often used, for example, large-caliber pipe fittings are mainly applied to sewers and water pipes, our tap water is delivered to every person's home through the large-caliber pipe fittings, and our domestic water cannot leave the large-caliber pipe fittings. Small bore pipe fittings are also often found in our field of vision, such as radiator pipes, various oil lines, etc. The pipe fittings of various pipe diameters especially require high field to the interior surface roughness, need to carry out the finishing to it.
Chinese patent CN111136524A discloses a magnetic conduction tube inner surface grinding and polishing device, which cannot process the inner and outer surfaces of a tube simultaneously, is not efficient, and cannot make magnetic abrasive particles roll over instead, thereby reducing the grinding effect of magnetic abrasive particles.
At present, the defects are generally eliminated by adopting a manual method, an electrolytic method and the like. The manual method is time-consuming and labor-consuming and requires a certain technical level of a processor; the electrolytic method causes the burrs of the workpiece to be electrolyzed, the surface of the workpiece loses the original luster, and even the dimensional accuracy is influenced; and traditional magnetic particle grinds the work piece that the finishing processing can only process a pipe diameter usually, and machining efficiency is not high moreover, if need process the work piece of other pipe diameters, need change different moulds, and the processing cost promotes by a wide margin.
Disclosure of Invention
The invention aims to provide a magnetic particle grinding device and a magnetic particle grinding method for grinding inner and outer surfaces of different pipe diameters by ultrasonic waves, which can realize the compound motion of magnetic poles, grind the inner and outer surfaces of straight pipes with different pipe diameters by magnetic particles, improve the grinding and polishing quality of the inner and outer surfaces of a pipe fitting, improve the processing efficiency and reduce the processing cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a magnetic particle grinder of surface in different pipe diameters is ground to ultrasonic wave, includes work platform, main shaft rotary drive device, fixing device, reciprocating motion device, ultrasonic vibration grinder, the work platform that main shaft rotary drive device installed is last to be provided with the track along the main shaft axial, reciprocating motion device can follow rail motion, fixing device can follow main shaft radial movement on reciprocating motion device, ultrasonic vibration grinder installs on fixing device, and the tubulose work piece is installed on main shaft rotary drive device's triangle chuck, the last supplementary magnetic pole of ultrasonic vibration device is installed outside the tubulose work piece, and the inside magnetic pole on the ultrasonic vibration device is radially arranged along the tubulose work piece.
The main shaft rotation driving device comprises a main shaft reduction box, a main shaft and a three-jaw chuck, wherein the main shaft reduction box drives the main shaft to rotate, and the three-jaw chuck is fixed on the main shaft.
The reciprocating device comprises a first screw rod slide rail, an upper saddle plate, a lower saddle plate and a second screw rod slide rail, wherein the first screw rod slide rail is arranged along the same direction of the track of the working platform, the lower saddle plate and the track are matched to slide, and the lower saddle plate is connected with a nut on the first screw rod slide rail and is driven by a screw rod on the first screw rod slide rail in a rotating way; the upper saddle plate and the lower saddle plate slide in a matched mode and are driven by a lead screw on a lead screw slide rail II in a rotating mode, the lead screw slide rail II is perpendicular to the lead screw slide rail I, and the fixing device is fixed on the upper saddle plate.
The ultrasonic vibration grinding device comprises an auxiliary magnetic pole, an internal magnetic pole, a motor connecting rod, an ultrasonic fixer, an amplitude transformer, a collecting ring, a transducer, an ultrasonic generator and an ultrasonic connecting rod, the auxiliary magnetic pole is arranged on the fixing device, the ultrasonic connecting rod is also arranged on the fixing device, the ultrasonic generator is fixed on the ultrasonic connecting rod through the ultrasonic fixer, the energy converter, the collecting ring and the amplitude transformer are sequentially connected with the ultrasonic generator, the motor connecting rod is connected with the amplitude transformer through the ultrasonic wave fixer, the motor is vertically connected with the motor connecting rod, the inner magnetic pole is connected with the motor spindle, a plurality of bolt connecting holes are formed between the ultrasonic connecting rod and the fixing device, and when different bolt connecting holes are used for connecting the ultrasonic connecting rod and the fixing device, the radial relative positions of the inner magnetic pole and the tubular workpiece are different.
A method for grinding the inner and outer surfaces of workpieces with different pipe diameters by using a magnetic particle grinding device for grinding the inner and outer surfaces of workpieces with different pipe diameters by using ultrasonic waves comprises the following specific steps:
1) mounting the tubular workpiece on a main shaft rotation driving device, clamping the tubular workpiece by using a three-jaw chuck, and enabling the main shaft to rotate at the speed of 1300 and 1600 r/min;
2) ensuring the coaxiality of the auxiliary magnetic pole and the internal magnetic pole, and arranging a machining gap of 2-3 mm between the auxiliary magnetic pole and the outer wall of the tubular workpiece;
3) a machining gap of 1-2 mm is arranged between the internal magnetic pole and the inner wall of the tubular workpiece, and the motor drives the internal magnetic pole to rotate on the inner surface of the tubular workpiece at the speed of 800-1000 r/min;
4) magnetic grinding materials are placed between the internal magnetic pole and the inner wall of the tubular workpiece and between the auxiliary magnetic pole and the outer wall of the tubular workpiece; the granularity of the magnetic abrasive is 150-300 mu m;
5) the ultrasonic vibration grinding device is driven to do uniform feeding motion along the axial direction of the tubular workpiece;
6) along with the relative movement of the internal magnetic pole, the auxiliary magnetic pole and the tubular workpiece, the magnetic abrasive material in the processing area between the magnetic pole and the internal and external surfaces of the tubular workpiece scratches and grinds along the internal and external surfaces of the tubular workpiece, thereby finishing the grinding and polishing of the internal and external surfaces of the tubular workpiece;
7) aiming at tubular workpieces with different pipe diameters and wall thicknesses, the transverse positions between the fixing device and the tubular workpieces are adjusted to adapt to pipe diameters with different sizes, and the connecting positions of the ultrasonic connecting rods and the fixing device are adjusted to adapt to different wall thicknesses.
Compared with the prior art, the invention has the beneficial effects that:
1) the ultrasonic vibration grinding mechanism is matched with the reciprocating mechanism, so that the inner and outer surfaces of tubular workpieces with different pipe diameters can be polished, and the processing efficiency and the processing precision are high; the service performance and the service life of the workpiece are improved;
2) in the grinding process, the magnetic poles rotate with trace vibration along the axial direction, so that the magnetic grinding particles can be rolled violently, and the replacement of the magnetic grinding particles is completed;
3) the distance between the magnetic pole and the tubular workpiece in the ultrasonic vibration grinding mechanism is adjusted by changing the position of the fixing device and the position of the ultrasonic connecting rod on the fixing device, so that the tubular workpieces with different pipe diameters and thicknesses can be polished, and the applicability is strong;
4) the tubular workpiece polishing device is simple in structure and convenient to operate, and can effectively realize grinding and polishing of the inner surface and the outer surface of a tubular workpiece.
Drawings
FIG. 1 is an isometric view of the present invention;
fig. 2 is a top view of the present invention.
In the figure: 1. the device comprises a base 2, a working platform 3, a main shaft rotation driving device 3-1, a main shaft reduction box 3-2, a main shaft 3-3, a three-jaw chuck 4, a tubular workpiece 5, a fixing device 5-1, a fixing table 5-2, a fixing screw 6, an ultrasonic vibration grinding device 6-1, an auxiliary magnetic pole 6-2, an internal magnetic pole 6-3, a motor 6-4, a motor connecting rod 6-5, an ultrasonic fixer 6-6, an amplitude transformer 6-7, a collecting ring 6-8, an energy converter 6-9, an ultrasonic generator 6-10, an ultrasonic connecting rod 7, a reciprocating device 7-1 screw slide rail II 7-2, an upper saddle plate 7-3, a lower saddle plate 7-4 screw rod, a lead screw, 7-5 leading screw slide rail I.
Detailed Description
The present invention will be described in detail below, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1-2, a magnetic particle grinding device for ultrasonic grinding of inner and outer surfaces with different pipe diameters comprises a working platform 2, a spindle rotation driving device 3, a fixing device 5, a reciprocating device 7, and an ultrasonic vibration grinding device 6, wherein the spindle rotation driving device 3 is mounted on the working platform 2, a track is arranged on the working platform 2 along the axial direction of the main shaft 3-2, the reciprocating device 7 can move along the track, said fixing means 5 are able to move radially along the main shaft 3-2 on shuttles 7, the ultrasonic vibration grinding device 6 is arranged on the fixing device 5, the tubular workpiece 4 is arranged on the triangular chuck 3-3 of the main shaft rotation driving device 3, the auxiliary magnetic pole 6-1 of the ultrasonic vibration device 6 is arranged outside the tubular workpiece 4, and the inner magnetic pole 6.2 of the ultrasonic vibration device 6 is arranged along the radial direction of the tubular workpiece 4. The bottom of the working platform 2 is provided with a base 1.
The spindle rotation driving device 3 comprises a spindle reduction box 3-1, a spindle 3-2 and a three-jaw chuck 3-3, wherein the spindle reduction box 3-1 drives the spindle 3-2 to rotate, and the three-jaw chuck 3-3 is fixed on the spindle 3-2.
The reciprocating device 7 comprises a first lead screw sliding rail 7-5, an upper saddle plate 7-2, a lower saddle plate 7-3 and a second lead screw sliding rail 7-1, the first lead screw sliding rail 7-5 is arranged along the same direction of the track of the working platform 2, the lower saddle plate 7-3 is matched with the track to slide, the lower saddle plate 7-3 is connected with a nut on the first lead screw sliding rail 7-5 and is driven by a lead screw 7-4 on the first lead screw sliding rail 7-5 to rotate; the upper saddle plate 7-2 and the lower saddle plate 7-3 are matched and slide and are rotationally driven by a lead screw on a lead screw slide rail II 7-1, the lead screw slide rail II 7-1 and the lead screw slide rail I7-5 are vertically arranged, and the fixing device 5 is fixed on the upper saddle plate 7-2.
The second lead screw sliding rail 7-1 is provided with a lead screw, the end part of the lead screw is connected with a hand wheel, the lead screw rotates to drive a nut on the lead screw to move, the upper saddle plate 7-2 is connected with the nut, and the nut drives the upper saddle plate 7-2 to move along the radial direction of the tubular workpiece 4.
The ultrasonic vibration grinding device comprises an auxiliary magnetic pole 6-1, an internal magnetic pole 6-2, a motor 6-3, a motor connecting rod 6-4, an ultrasonic fixer 6-5, an amplitude transformer 6-6, a collecting ring 6-7, a transducer 6-8, an ultrasonic generator 6-9 and an ultrasonic connecting rod 6-10, wherein the auxiliary magnetic pole 6-1 is installed on the fixer 5, the ultrasonic connecting rod 6-10 is also installed on the fixer 5, the ultrasonic generator 6-9 is fixed on the ultrasonic connecting rod 6-10 through the ultrasonic fixer 6-5, the transducer 6-8, the collecting ring 6-7 and the amplitude transformer 6-6 are sequentially connected with the ultrasonic generator 6-9, the motor connecting rod 6-4 is connected with the amplitude transformer 6-6 through the ultrasonic fixer 6-5, the motor 6-3 is vertically connected with the motor connecting rod 6-4, the internal magnetic pole 6-3 is connected with a main shaft of the motor 6-3, a plurality of bolt connecting holes are formed between the ultrasonic connecting rod 6-10 and the fixing device 5, and when the ultrasonic connecting rod 6-10 and the fixing device 5 are connected through different bolt connecting holes, the radial relative positions of the internal magnetic pole 6-2 and the tubular workpiece 4 are different.
The fixing device 5 comprises a fixing table 5-1, and the fixing table 5-1 is connected with the ultrasonic connecting rod 6-10 through a fixing screw 5-2. After the ultrasonic vibration grinding device 6 is adjusted to a proper position, the ultrasonic vibration grinding device 6 is fixed on the fixed table 5-1 through the fixing screw 5-2, and the ultrasonic vibration grinding device 6 and the fixed device 5 move on the working platform 2 through the reciprocating device 7.
After the reciprocating device 7 is adjusted, the ultrasonic vibration grinding device 6 moves into the tubular workpiece 4 to be processed, the motor 6-3 in the ultrasonic vibration grinding device 6 drives the internal magnetic pole 6-2 to rotate to grind the inner surface of the tubular workpiece, the auxiliary magnetic pole 6-1 is fixed on the fixing device 5 and is at the same height with the internal magnetic pole 6-2, and the auxiliary magnetic pole 6-1 adsorbs abrasive particles to grind the outer surface of the tubular workpiece.
A method for grinding the inner and outer surfaces of workpieces with different pipe diameters by using a magnetic particle grinding device for grinding the inner and outer surfaces of workpieces with different pipe diameters by using ultrasonic waves comprises the following specific steps:
1) the tubular workpiece 4 is arranged on the main shaft rotation driving device 3 and is clamped by the three-jaw chuck 3-3, the coaxiality of the tubular workpiece 4 and the main shaft 3-2 is ensured by utilizing the concentricity measuring instrument, and the main shaft 3-2 rotates at the speed of 1300 plus 1600 r/min;
2) ensuring the coaxiality of the auxiliary magnetic pole 6-1 and the internal magnetic pole 6-2 by using a concentricity measuring instrument, wherein the auxiliary magnetic pole 6-1 is arranged on the fixing device 5, and a processing gap of 2-3 mm is arranged between the auxiliary magnetic pole 6-1 and the outer wall of the tubular workpiece 4;
3) the internal magnetic pole 6-2 is connected with the motor 6-3 and is arranged inside the tubular workpiece 4, a machining gap of 1-2 mm is arranged between the internal magnetic pole 6-2 and the inner wall of the tubular workpiece 4, and the motor 6-3 drives the internal magnetic pole 6-2 to rotate on the inner surface of the tubular workpiece 4 at the speed of 800 plus one year of 1000 r/min;
4) magnetic grinding materials are placed between the internal magnetic pole 6-2 and the inner wall of the tubular workpiece 4 and between the auxiliary magnetic pole 6-1 and the outer wall of the tubular workpiece 4; the granularity of the magnetic abrasive is 150-300 mu m, and the magnetic abrasive particles and the water-based grinding fluid are mixed according to the volume ratio of 1: 3;
5) shaking the hand wheel to make the ultrasonic vibration grinding device 6 perform uniform feeding motion along the axial direction of the tubular workpiece 4;
6) along with the relative movement of the internal magnetic pole 6-2, the auxiliary magnetic pole 6-1 and the tubular workpiece 4, the magnetic abrasive material in the processing area between the magnetic pole and the inner and outer surfaces of the tubular workpiece 4 scratches and grinds the inner and outer surfaces of the tubular workpiece 4, so as to finish the grinding and polishing of the outer surface of the inner surface 4 of the tubular workpiece;
7) aiming at tubular workpieces 4 with different pipe diameters and wall thicknesses, the transverse positions between the fixing device 5 and the tubular workpieces 4 are adjusted to adapt to the pipe diameters with different sizes, and the connecting positions of the ultrasonic connecting rods 6-10 and the fixing device 5 are adjusted to adapt to different wall thicknesses.
Claims (5)
1. The utility model provides a magnetic particle grinder of surface in different pipe diameters is ground to ultrasonic wave, its characterized in that, includes work platform, main shaft rotary drive device, fixing device, reciprocating motion device, ultrasonic vibration grinder, the work platform that main shaft rotary drive device installed is last to be provided with the track along the main shaft axial, reciprocating motion device can follow rail motion, fixing device can be on reciprocating motion device along main shaft radial movement, ultrasonic vibration grinder installs on fixing device, and tubular workpiece installs on main shaft rotary drive device's triangle chuck, the last supplementary magnetic pole of ultrasonic vibration device is installed outside tubular workpiece, and the inside magnetic pole on the ultrasonic vibration device is radially arranged along tubular workpiece.
2. The apparatus as claimed in claim 1, wherein the spindle rotation driving means comprises a spindle reduction box, a spindle, and a three-jaw chuck, the spindle reduction box drives the spindle to rotate, and the three-jaw chuck is fixed on the spindle.
3. The magnetic particle grinding device for ultrasonically grinding inner and outer surfaces of different pipe diameters as claimed in claim 1, wherein the reciprocating device comprises a first screw rod slide rail, an upper saddle plate, a lower saddle plate and a second screw rod slide rail, the first screw rod slide rail is arranged along the same direction of the track of the working platform, the lower saddle plate is matched with the track to slide, and the lower saddle plate is connected with a nut on the first screw rod slide rail and is rotationally driven by a screw rod on the first screw rod slide rail; the upper saddle plate and the lower saddle plate slide in a matched mode and are driven by a lead screw on a lead screw slide rail II in a rotating mode, the lead screw slide rail II is perpendicular to the lead screw slide rail I, and the fixing device is fixed on the upper saddle plate.
4. The magnetic particle grinding device for ultrasonically grinding inner and outer surfaces of different pipe diameters as claimed in claim 1, wherein the ultrasonic vibration grinding device comprises an auxiliary magnetic pole, an internal magnetic pole, a motor connecting rod, an ultrasonic fixer, an amplitude transformer, a collecting ring, a transducer, an ultrasonic generator and an ultrasonic connecting rod, the auxiliary magnetic pole is mounted on the fixing device, the ultrasonic connecting rod is also mounted on the fixing device, the ultrasonic generator is fixed on the ultrasonic connecting rod through the ultrasonic fixer, the transducer, the collecting ring and the amplitude transformer are sequentially connected with the ultrasonic generator, the motor connecting rod is connected with the amplitude transformer through the ultrasonic fixer, the motor is vertically connected with the motor connecting rod, the internal magnetic pole is connected with a motor spindle, a plurality of bolt connecting holes are arranged between the ultrasonic connecting rod and the fixing device, when different bolt connecting holes are used for connecting the ultrasonic connecting rod and the fixing device, the relative positions of the internal magnetic pole and the tubular workpiece in the radial direction are different.
5. A method for grinding the inner and outer surfaces of workpieces with different pipe diameters by using the magnetic particle grinding device for grinding the inner and outer surfaces of different pipe diameters by using ultrasonic waves as claimed in any one of claims 1 to 4, which is characterized by comprising the following steps:
1) mounting the tubular workpiece on a main shaft rotation driving device, clamping the tubular workpiece by using a three-jaw chuck, and enabling the main shaft to rotate at the speed of 1300 and 1600 r/min;
2) ensuring the coaxiality of the auxiliary magnetic pole and the internal magnetic pole, and arranging a machining gap of 2-3 mm between the auxiliary magnetic pole and the outer wall of the tubular workpiece;
3) a machining gap of 1-2 mm is arranged between the internal magnetic pole and the inner wall of the tubular workpiece, and the motor drives the internal magnetic pole to rotate on the inner surface of the tubular workpiece at the speed of 800-1000 r/min;
4) magnetic grinding materials are placed between the internal magnetic pole and the inner wall of the tubular workpiece and between the auxiliary magnetic pole and the outer wall of the tubular workpiece; the granularity of the magnetic abrasive is 150-300 mu m;
5) the ultrasonic vibration grinding device is driven to do uniform feeding motion along the axial direction of the tubular workpiece;
6) along with the relative movement of the internal magnetic pole, the auxiliary magnetic pole and the tubular workpiece, the magnetic abrasive material in the processing area between the magnetic pole and the internal and external surfaces of the tubular workpiece scratches and grinds along the internal and external surfaces of the tubular workpiece, thereby finishing the grinding and polishing of the internal and external surfaces of the tubular workpiece;
7) aiming at tubular workpieces with different pipe diameters and wall thicknesses, the transverse positions between the fixing device and the tubular workpieces are adjusted to adapt to pipe diameters with different sizes, and the connecting positions of the ultrasonic connecting rods and the fixing device are adjusted to adapt to different wall thicknesses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011355522.5A CN112428027A (en) | 2020-11-27 | 2020-11-27 | Magnetic particle grinding device and method for grinding inner and outer surfaces of different pipe diameters by ultrasonic waves |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011355522.5A CN112428027A (en) | 2020-11-27 | 2020-11-27 | Magnetic particle grinding device and method for grinding inner and outer surfaces of different pipe diameters by ultrasonic waves |
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| CN112428027A true CN112428027A (en) | 2021-03-02 |
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| CN202011355522.5A Pending CN112428027A (en) | 2020-11-27 | 2020-11-27 | Magnetic particle grinding device and method for grinding inner and outer surfaces of different pipe diameters by ultrasonic waves |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115383520A (en) * | 2022-08-30 | 2022-11-25 | 山东大学 | Device and method for processing micro texture on inner wall of rolling bearing raceway |
-
2020
- 2020-11-27 CN CN202011355522.5A patent/CN112428027A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115383520A (en) * | 2022-08-30 | 2022-11-25 | 山东大学 | Device and method for processing micro texture on inner wall of rolling bearing raceway |
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