CN111215969A - Magnetic grinding device for simultaneously processing multiple elongated tubes and using method thereof - Google Patents
Magnetic grinding device for simultaneously processing multiple elongated tubes and using method thereof Download PDFInfo
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- CN111215969A CN111215969A CN202010201669.2A CN202010201669A CN111215969A CN 111215969 A CN111215969 A CN 111215969A CN 202010201669 A CN202010201669 A CN 202010201669A CN 111215969 A CN111215969 A CN 111215969A
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- 230000007246 mechanism Effects 0.000 claims abstract description 86
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- 230000008878 coupling Effects 0.000 claims abstract description 5
- 238000010168 coupling process Methods 0.000 claims abstract description 5
- 238000005859 coupling reaction Methods 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 7
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 238000005498 polishing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
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- 230000003746 surface roughness Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
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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
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/006—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor for grinding the interior surfaces of hollow workpieces
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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
- B24B1/005—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes using a magnetic polishing agent
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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
- B24B27/00—Other grinding machines or devices
- B24B27/0023—Other grinding machines or devices grinding machines with a plurality of working posts
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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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/061—Work supports, e.g. adjustable steadies axially supporting turning workpieces, e.g. magnetically, pneumatically
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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
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
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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
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention relates to a magnetic grinding device for simultaneously processing a plurality of slender pipes and a using method thereof, wherein the device comprises a self-rotating mechanism, a feeding mechanism and a grinding mechanism; the self-rotation mechanism consists of a support frame, a small motor, a coupling and a support block; the feeding mechanism is a crank sliding rod mechanism and consists of a main motor, a disc, a connecting rod, a sliding rod and a supporting rod; the grinding mechanisms are in multiple groups, and each group of grinding mechanisms consists of a cylindrical magnetic pole, a reducing lantern ring and an adjusting bracket; when grinding processing is carried out, gaps between two ends of the cylindrical magnetic pole and the outer surface of the slender pipe workpiece at the corresponding end are all 1-2 mm; magnetic abrasive particles are respectively filled in the slender pipe workpiece and the gap between the cylindrical magnetic pole and the slender pipe workpiece. The invention can simultaneously grind the inner and outer surfaces of a plurality of slender pipes, can ensure the quality and the processing uniformity of workpieces, and has high grinding efficiency and low cost.
Description
Technical Field
The invention relates to the technical field of magnetic grinding, in particular to a magnetic grinding device for simultaneously processing a plurality of slender pipes and a using method thereof.
Background
The pipeline system composed of various alloy pipes is a life line of equipment and is widely applied to the fields of aerospace, petrochemical industry, mechanical manufacturing and the like; the service life of equipment is directly influenced by the quality of the inner surface of the pipe, the service environment is limited, many pipes are thin-walled slender pipes with larger long diameters, the inner diameter is 2 mm-6 mm, and common tools are difficult to enter during processing and cannot be observed by naked eyes. For the grinding processing of the slender pipe workpiece, the traditional polishing mode is difficult to finish, at present, the polishing of the inner surface of the slender pipe is mostly carried out in an acid washing mode, the requirements of surface roughness and surface appearance can be met, but the chemical polishing can pollute the environment, and chemical reagents are harmful to human bodies, so the technology cannot be used as the main flow direction of precision processing.
The magnetic grinding method can overcome the limitation brought by the traditional method and realize the ultra-precise polishing of the inner surface of the pipe. However, the existing magnetic grinding device generally lacks adaptability to the diameter of a workpiece, cannot meet the requirement of slender tube processing with various diameters, only can process a single slender tube at each time, and has extremely low processing efficiency.
Disclosure of Invention
The invention provides a magnetic grinding device for simultaneously processing a plurality of slender pipes and a using method thereof, which can simultaneously grind the inner surface and the outer surface of the slender pipes, can ensure the quality and the processing uniformity of workpieces, and has high grinding efficiency and low cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
a magnetic grinding device for simultaneously processing a plurality of slender pipes comprises a rotation mechanism, a feeding mechanism and a grinding mechanism; the self-rotation mechanism consists of a support frame, a small motor, a coupling and a support block; a plurality of small motors are horizontally arranged on the support frame, and the small motors are uniformly arranged along the circumferential direction of the center line of the vertical surface of the support frame; the output shaft of the small motor is connected with a corresponding coupler, and the coupler is provided with a supporting block for supporting and fixing one end of the slender pipe workpiece so that the slender pipe workpiece is in a horizontal overhanging state; the feeding mechanism is a crank sliding rod mechanism and consists of a main motor, a disc, a connecting rod, a sliding rod and a supporting rod, an output shaft of the main motor is connected with the center of the disc and drives the disc to rotate around the center, one end of the connecting rod is hinged with one position, close to the edge, on the disc, and the other end of the connecting rod is hinged with one end of the sliding rod; the sliding rod is arranged in parallel with the slender pipe workpiece, and the axis of the sliding rod is collinear with the central line of the vertical surface of the support frame; 2 support rods are respectively arranged on the outer sides of two ends of the slender pipe workpiece and used for supporting the slide rod, sleeves are arranged at the tops of the support rods, the slide rod penetrates through the sleeves, and the support rods are connected with the slide rod in a sliding manner; the grinding mechanisms are in a plurality of groups, each group of grinding mechanisms consists of a cylindrical magnetic pole, a reducing lantern ring and an adjusting bracket, the reducing lantern rings and the slender pipe workpieces are sleeved on the outer sides of the slender pipe workpieces in a one-to-one correspondence manner, and the reducing lantern rings are connected with the slender pipe workpieces in a sliding manner; the cylindrical magnetic poles are multiple, the N poles and the S poles of the adjacent 2 cylindrical magnetic poles in the same group of grinding mechanisms are oppositely arranged, and each cylindrical magnetic pole is respectively suspended between the adjacent 2 slender pipe workpieces through an adjusting bracket; when grinding processing is carried out, gaps between two ends of the cylindrical magnetic pole and the outer surface of the slender pipe workpiece at the corresponding end are all 1-2 mm; magnetic grinding particles are respectively filled in the slender pipe workpiece and a gap between the cylindrical magnetic pole and the slender pipe workpiece, and one end of the slender pipe workpiece far away from the supporting block is temporarily sealed by a sealing plug; the adjusting bracket is fixedly connected with the sliding rod through a connecting frame.
The utility model provides a magnetic grinding device of many slender pipes simultaneous processing, still includes the bottom plate, main motor, bracing piece and support frame are all fixed on the bottom plate.
And at least 3 thin work tube workpieces are simultaneously fixed on the rotation mechanism.
4 thin work tube workpieces are simultaneously fixed on the rotation mechanism; a square frame is arranged on the supporting frame, and a small motor, a coupling and a supporting block are respectively arranged on each angular point of the square frame; each group of grinding mechanisms is correspondingly provided with 4 reducing lantern rings, 4 cylindrical magnetic poles and 4 groups of adjusting brackets.
The adjusting bracket is an E-shaped bracket and consists of 1 long rod and 3 parallel short rods, wherein one end of the short rod in the middle is fixedly connected with the middle part of the cylindrical magnetic pole through a lantern ring, the other end of the short rod is connected with the middle part of the long rod, and the short rod is provided with a telescopic rod; the long rods on the two sides of the short rod are respectively provided with a telescopic rod.
The grinding mechanism is at least 3 groups.
The use method of the magnetic grinding device for simultaneously processing the plurality of elongated tubes comprises the following steps:
1) one end of the slender pipe workpiece is arranged on the small motor through a supporting block, and the other end of the slender pipe workpiece sequentially penetrates through corresponding reducing lantern rings in the multiple groups of feeding mechanisms; after the clamp is installed, the axis of the slender pipe workpiece is superposed with the rotation center line of the small motor; the other end of the slender pipe workpiece is temporarily sealed by a sealing plug;
2) adjusting the diameter of a sleeve ring of the reducing sleeve ring to be adaptive to the diameter of the slender pipe workpiece, adjusting the length of each telescopic rod on the adjusting support to ensure that a gap of 1-2 mm is kept between the end part of the cylindrical magnetic pole and the outer surface of the slender pipe workpiece at the corresponding end, and filling magnetic grinding particles in the gap and the slender pipe workpiece;
3) starting a main motor, wherein the main motor drives a disc to rotate, a connecting rod drives a sliding rod to horizontally reciprocate, the sliding rod drives a grinding mechanism to horizontally reciprocate through a connecting frame, and the feeding speed is adjusted by changing the revolution number of the main motor;
4) starting the small motor, driving the slender pipe workpiece to rotate around respective axis through the coupler, and adjusting the rotation speed of the slender pipe workpiece by changing the revolution of the small motor; in the process, the cylindrical magnetic pole drives the magnetic grinding particles to finish grinding the inner surface and the outer surface of the slender pipe workpiece;
5) after the grinding processing of the slender pipe workpiece is finished, the main motor and the small motor are turned off; the slender pipe workpiece is detached from the supporting block of the autorotation mechanism and the reducing lantern ring in the grinding mechanism, and the magnetic grinding particles on the outer surface and inside of the slender pipe workpiece are cleaned.
Compared with the prior art, the invention has the beneficial effects that:
1) the invention adopts the autorotation mechanism to fix the slender pipe workpiece, and can cause the slender pipe workpiece and the magnetic grinding particles to generate relative impact by adjusting the rotation frequency, thereby improving the grinding efficiency;
2) the grinding machine is provided with the feeding mechanism, the feeding speed can be adjusted, the feeding mechanism adopts a crank slide bar mechanism, the feeding range can be ensured, and the grinding efficiency of workpieces can be further improved by adjusting the revolution of the main motor on the premise of ensuring safety;
3) when the device provided by the invention is used for grinding slender pipe parts with complex structures and tiny sizes, grinding fluid and magnetic grinding particles are mixed according to a certain proportion for grinding, so that the problem that the positions of parts of a workpiece cannot be processed by conventional grinding equipment can be solved, the parts have good surface appearances, and batch processing is completed;
4) the grinding mechanism is connected with the slender pipe workpiece in a sliding way through the reducing lantern ring, and the diameter of the lantern ring can be adjusted according to the diameter of the slender pipe workpiece to be processed, so that the processing requirements of slender pipes with different diameters can be met;
5) the invention overcomes the defect that the conventional grinding equipment can only process a single slender tube, and can process a plurality of slender tubes simultaneously under the condition of not influencing the processing effect, thereby greatly improving the processing efficiency.
6) The device has the advantages of simple structure, convenient operation, wide application and low cost.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a schematic structural view of the rotation mechanism according to the present invention.
Fig. 3 is a schematic structural diagram of the grinding mechanism of the present invention.
Fig. 4 is a layout diagram of 4 cylindrical magnetic poles in the same set of grinding mechanisms in an embodiment of the present invention.
In the figure: 1. disc 2, main motor 3, slide rod 4, sealing plug 5, slender pipe workpiece 6, support frame 7, support rod 8, bottom plate 9, connecting rod 10, support block 11, coupler 12, small motor 13, reducing lantern ring 14, telescopic rod 15, cylindrical magnetic pole 16, connecting frame 17 and grinding mechanism
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings:
as shown in fig. 1, the magnetic grinding device for simultaneously processing a plurality of slender tubes of the present invention comprises a rotation mechanism, a feeding mechanism and a grinding mechanism 17; the self-rotation mechanism consists of a support frame 6, a small motor 12, a coupler 11 and a support block 10; a plurality of small motors 12 are horizontally arranged on the support frame 6, and the small motors 12 are uniformly arranged along the circumferential direction of the center line of the vertical surface of the support frame 6; an output shaft of the small motor 12 is connected with a corresponding coupler 11, and a supporting block 10 is arranged on the coupler 11 and used for supporting and fixing one end of the slender pipe workpiece 5, so that the slender pipe workpiece 5 is in a horizontal overhanging state; the feeding mechanism is a crank-slide rod mechanism and consists of a main motor 2, a disc 1, a connecting rod 9, a slide rod 3 and a support rod 7, wherein an output shaft of the main motor 2 is connected with the center of the disc 1 and drives the disc 1 to rotate around the center, one end of the connecting rod 9 is hinged with one position, close to the edge, on the disc 1, and the other end of the connecting rod 9 is hinged with one end of the slide rod 3; the slide bar 3 is arranged in parallel with the slender pipe workpiece 5, and the axis of the slide bar 3 is collinear with the central line of the vertical surface of the support frame 6; the 2 support rods 7 are respectively arranged at the outer sides of two ends of the slender pipe workpiece 5 and used for supporting the slide rod 3, the top of each support rod 7 is provided with a sleeve, the slide rod 3 penetrates through the sleeve, and the support rods 7 are connected with the slide rod 3 in a sliding manner; the grinding mechanisms are in multiple groups, each group of grinding mechanisms consists of a cylindrical magnetic pole 15, a reducing lantern ring 13 and an adjusting bracket, the reducing lantern rings 13 and the slender pipe workpieces 5 are sleeved on the outer sides of the slender pipe workpieces 5 in a one-to-one correspondence mode, and the reducing lantern rings 13 are connected with the slender pipe workpieces 5 in a sliding mode; the cylindrical magnetic poles 15 are multiple, the N poles and the S poles of the adjacent 2 cylindrical magnetic poles 15 in the same group of grinding mechanisms are oppositely arranged, and each cylindrical magnetic pole 15 is respectively suspended between the adjacent 2 slender pipe workpieces 5 through an adjusting bracket; during grinding, gaps between two ends of the cylindrical magnetic pole 15 and the outer surface of the slender pipe workpiece 5 at the corresponding end are all 1-2 mm; magnetic grinding particles are respectively filled in the slender pipe workpiece 5 and the gap between the cylindrical magnetic pole 15 and the slender pipe workpiece 5, and one end of the slender pipe workpiece 5 far away from the supporting block 10 is temporarily sealed by a sealing plug 4; the adjusting bracket is fixedly connected with the sliding rod 3 through a connecting frame 16.
A magnetic grinding device for simultaneously processing a plurality of slender pipes further comprises a bottom plate 8, and a main motor 2, a support rod 7 and a support frame 6 are all fixed on the bottom plate 8.
And at least 3 thin work tube workpieces 5 are simultaneously fixed on the rotation mechanism.
4 thin work tube workpieces 5 are simultaneously fixed on the autorotation mechanism; a square frame is arranged on the support frame 6, and a small motor 12, a coupler 11 and a support block 10 are respectively arranged on each corner point of the square frame; each group of grinding mechanisms is correspondingly provided with 4 reducing lantern rings 13, 4 cylindrical magnetic poles 15 and 4 groups of adjusting brackets.
The adjusting bracket is an E-shaped bracket and consists of 1 long rod and 3 parallel short rods, wherein one end of the short rod in the middle is fixedly connected with the middle part of the cylindrical magnetic pole 15 through a lantern ring, the other end of the short rod is connected with the middle part of the long rod, and the short rod is provided with a telescopic rod 14; the long rods at the two sides of the short rod are respectively provided with a telescopic rod 14.
The grinding mechanism is at least 3 groups.
The use method of the magnetic grinding device for simultaneously processing the plurality of elongated tubes comprises the following steps:
1) one end of the slender pipe workpiece 5 is arranged on a small motor 12 through a supporting block 10, and the other end of the slender pipe workpiece 5 sequentially passes through corresponding reducing lantern rings 13 in a plurality of groups of feeding mechanisms; after the clamping, the axis of the slender pipe workpiece 5 is superposed with the rotation center line of the small motor 12; the other end of the slender pipe workpiece 5 is temporarily sealed by a sealing plug 4;
2) adjusting the diameter of the reducing lantern ring 13 to be adapted to the diameter of the slender pipe workpiece 5, adjusting the length of each telescopic rod 14 on the adjusting bracket to keep a gap of 1-2 mm between the end part of the cylindrical magnetic pole 15 and the outer surface of the slender pipe workpiece 5 at the corresponding end, and filling magnetic abrasive particles in the gap and the slender pipe workpiece 5;
3) starting a main motor 2, driving a disc 1 to rotate by the main motor 2, driving a sliding rod 3 to horizontally reciprocate by a connecting rod 9, driving a grinding mechanism to horizontally reciprocate by the sliding rod 3 through a connecting frame 16, and realizing the adjustment of the feeding speed by changing the revolution number of the main motor 2;
4) starting the small motor 12, driving the slender pipe workpiece 5 to rotate around respective axes through the coupler 11, and adjusting the rotation speed of the slender pipe workpiece 5 by changing the revolution of the small motor 12; in the process, the cylindrical magnetic pole 15 drives the magnetic grinding particles to finish grinding the inner surface and the outer surface of the slender pipe workpiece 5;
5) after the grinding processing of the slender pipe workpiece 5 is finished, the main motor 2 and the small motor 12 are closed; the slender pipe workpiece 5 is detached from the supporting block of the autorotation mechanism and the reducing lantern ring 13 in the grinding mechanism, and the magnetic grinding particles on the outer surface and inside of the slender pipe workpiece 5 are cleaned.
The following examples are carried out on the premise of the technical scheme of the invention, and detailed embodiments and specific operation processes are given, but the scope of the invention is not limited to the following examples. The methods used in the following examples are conventional methods unless otherwise specified.
[ examples ] A method for producing a compound
In this embodiment, the magnetic grinding device for simultaneously processing a plurality of elongated tubes is composed of a feeding mechanism, a rotation mechanism, and a grinding mechanism. The supporting workpiece is installed through the reducing lantern ring and the rotation mechanism, 4 small motors are arranged on a supporting frame in the rotation mechanism, and the 4 small motors drive the 4 slender pipe workpieces to rotate around the axes of the slender pipe workpieces. The main motor converts the rotary motion of the motor shaft into horizontal reciprocating feeding motion through a crank slide rod mechanism; the magnetic grinding abrasive particles and the grinding fluid are mixed in a certain proportion and then are placed in the slender pipe workpiece and the gap between the cylindrical magnetic pole and the slender pipe workpiece, and the crank-slide rod mechanism drives the grinding mechanism to move along the axial direction of the slender pipe workpiece at a certain frequency and displacement. After the main motor and the small motor are started, the cylindrical magnetic poles magnetize the magnetic grinding particles, magnetic fields are formed inside and outside the slender pipe, the magnetic grinding particles move along with the cylindrical magnetic poles and compound the feeding motion of the slender pipe workpiece, and the magnetic grinding particles impact the inner surface and the outer surface of the slender pipe workpiece at high speed and multiple angles, so that the bulges, edges, burrs and the like on the inner surface and the outer surface of the slender pipe workpiece are removed efficiently, and finally the surface roughness of the slender pipe workpiece is reduced rapidly.
The feeding mechanism comprises a main motor fixed on the bottom plate, a disc fixed on a motor shaft, a connecting frame connected with the grinding mechanism and the sliding rod, an adjusting support fixedly connected with the connecting frame, a telescopic rod and a reducing lantern ring fixed on the adjusting support, and a plurality of groups of cylindrical magnetic poles formed by facing tile-shaped magnetic poles in pairs and mutually perpendicular N-S poles. The bottom plate of the main motor is connected with the bottom plate through a fixing bolt, and two ends of the connecting rod are hinged with the sliding rod and the disc through pins respectively. The output shaft of the main motor drives the disc to rotate, the disc drives the connecting rod to move, and the sliding rod drives the grinding mechanism to do horizontal reciprocating feeding motion under the driving of the connecting rod and the restraint of the upper sleeve of the supporting rod.
The autorotation mechanism comprises 4 small motors fixed on the support frame, a coupler connected with the small motors in a matching way, and a supporting block used for connecting the coupler with the slender pipe workpiece. The bottom of the support frame is welded on the bottom plate, the small motors are fixed at four corners of the square frame on the upper portion of the support frame, the small motors are used for controlling the rotation speed of the slender pipe workpiece, and the rotation speed is controllable and adjustable by adjusting the rotating speed of the small motors.
The grinding mechanisms are 5 groups, each group of grinding mechanisms is provided with 4 cylindrical magnetic poles, the adjacent 2 cylindrical magnetic poles in the same group of grinding mechanisms are mutually vertical, and the N pole and the S pole are oppositely arranged (as shown in figure 4). The mixed abrasive is moved inside and outside the slender pipe workpiece through the autorotation movement of the slender pipe workpiece and the horizontal feeding movement of the grinding mechanism. The rotation speed of the slender pipe workpiece is controlled by the small motor, the reciprocating feeding speed of the grinding mechanism is controlled by the main motor, and the grinding processing of the slender pipe workpiece is completed after the grinding mechanism is adjusted to a proper processing state.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. A magnetic grinding device for simultaneously processing a plurality of slender pipes is characterized by comprising a self-rotation mechanism, a feeding mechanism and a grinding mechanism; the self-rotation mechanism consists of a support frame, a small motor, a coupling and a support block; a plurality of small motors are horizontally arranged on the support frame, and the small motors are uniformly arranged along the circumferential direction of the center line of the vertical surface of the support frame; the output shaft of the small motor is connected with a corresponding coupler, and the coupler is provided with a supporting block for supporting and fixing one end of the slender pipe workpiece so that the slender pipe workpiece is in a horizontal overhanging state; the feeding mechanism is a crank sliding rod mechanism and consists of a main motor, a disc, a connecting rod, a sliding rod and a supporting rod, an output shaft of the main motor is connected with the center of the disc and drives the disc to rotate around the center, one end of the connecting rod is hinged with one position, close to the edge, on the disc, and the other end of the connecting rod is hinged with one end of the sliding rod; the sliding rod is arranged in parallel with the slender pipe workpiece, and the axis of the sliding rod is collinear with the central line of the vertical surface of the support frame; 2 support rods are respectively arranged on the outer sides of two ends of the slender pipe workpiece and used for supporting the slide rod, sleeves are arranged at the tops of the support rods, the slide rod penetrates through the sleeves, and the support rods are connected with the slide rod in a sliding manner; the grinding mechanisms are in a plurality of groups, each group of grinding mechanisms consists of a cylindrical magnetic pole, a reducing lantern ring and an adjusting bracket, the reducing lantern rings and the slender pipe workpieces are sleeved on the outer sides of the slender pipe workpieces in a one-to-one correspondence manner, and the reducing lantern rings are connected with the slender pipe workpieces in a sliding manner; the cylindrical magnetic poles are multiple, the N poles and the S poles of the adjacent 2 cylindrical magnetic poles in the same group of grinding mechanisms are oppositely arranged, and each cylindrical magnetic pole is respectively suspended between the adjacent 2 slender pipe workpieces through an adjusting bracket; when grinding processing is carried out, gaps between two ends of the cylindrical magnetic pole and the outer surface of the slender pipe workpiece at the corresponding end are all 1-2 mm; magnetic grinding particles are respectively filled in the slender pipe workpiece and a gap between the cylindrical magnetic pole and the slender pipe workpiece, and one end of the slender pipe workpiece far away from the supporting block is temporarily sealed by a sealing plug; the adjusting bracket is fixedly connected with the sliding rod through a connecting frame.
2. The magnetic grinding device for simultaneously processing a plurality of elongated tubes as claimed in claim 1, further comprising a bottom plate, wherein the main motor, the support rod and the support frame are fixed on the bottom plate.
3. The magnetic grinding device for simultaneously processing a plurality of slender pipes according to claim 1, wherein the number of the thin pipe workpieces simultaneously fixed on the rotation mechanism is at least 3.
4. The magnetic grinding device for simultaneously processing a plurality of slender pipes according to claim 1, wherein the number of the thin working pipes simultaneously fixed on the rotation mechanism is 4; a square frame is arranged on the supporting frame, and a small motor, a coupling and a supporting block are respectively arranged on each angular point of the square frame; each group of grinding mechanisms is correspondingly provided with 4 reducing lantern rings, 4 cylindrical magnetic poles and 4 groups of adjusting brackets.
5. The magnetic grinding device for simultaneously processing a plurality of slender tubes as claimed in claim 1, wherein the adjusting bracket is an E-shaped bracket consisting of 1 long rod and 3 parallel short rods, wherein one end of the middle short rod is fixedly connected with the middle part of the cylindrical magnetic pole through a lantern ring, the other end is connected with the middle part of the long rod, and the short rod is provided with a telescopic rod; the long rods on the two sides of the short rod are respectively provided with a telescopic rod.
6. The magnetic grinding apparatus for simultaneous processing of multiple elongated tubes as claimed in claim 1, wherein said grinding mechanism is at least 3 sets.
7. A method of using a magnetic abrading device for simultaneous processing of a plurality of elongate tubes as claimed in any of claims 1 to 6, comprising the steps of:
1) one end of the slender pipe workpiece is arranged on the small motor through a supporting block, and the other end of the slender pipe workpiece sequentially penetrates through corresponding reducing lantern rings in the multiple groups of feeding mechanisms; after the clamp is installed, the axis of the slender pipe workpiece is superposed with the rotation center line of the small motor; the other end of the slender pipe workpiece is temporarily sealed by a sealing plug;
2) adjusting the diameter of a sleeve ring of the reducing sleeve ring to be adaptive to the diameter of the slender pipe workpiece, adjusting the length of each telescopic rod on the adjusting support to ensure that a gap of 1-2 mm is kept between the end part of the cylindrical magnetic pole and the outer surface of the slender pipe workpiece at the corresponding end, and filling magnetic grinding particles in the gap and the slender pipe workpiece;
3) starting a main motor, wherein the main motor drives a disc to rotate, a connecting rod drives a sliding rod to horizontally reciprocate, the sliding rod drives a grinding mechanism to horizontally reciprocate through a connecting frame, and the feeding speed is adjusted by changing the revolution number of the main motor;
4) starting the small motor, driving the slender pipe workpiece to rotate around respective axis through the coupler, and adjusting the rotation speed of the slender pipe workpiece by changing the revolution of the small motor; in the process, the cylindrical magnetic pole drives the magnetic grinding particles to finish grinding the inner surface and the outer surface of the slender pipe workpiece;
5) after the grinding processing of the slender pipe workpiece is finished, the main motor and the small motor are turned off; the slender pipe workpiece is detached from the supporting block of the autorotation mechanism and the reducing lantern ring in the grinding mechanism, and the magnetic grinding particles on the outer surface and inside of the slender pipe workpiece are cleaned.
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| CN202010201669.2A CN111215969B (en) | 2020-03-20 | 2020-03-20 | Magnetic grinding device for simultaneously processing multiple slender pipes and use method thereof |
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| CN202010201669.2A CN111215969B (en) | 2020-03-20 | 2020-03-20 | Magnetic grinding device for simultaneously processing multiple slender pipes and use method thereof |
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| CN111958336A (en) * | 2020-09-22 | 2020-11-20 | 辽宁科技大学 | Device for polishing annular groove |
| CN112847032A (en) * | 2021-01-25 | 2021-05-28 | 潘长挺 | Grinding machine for grinding arc-shaped inner hole of workpiece |
| CN112873006A (en) * | 2021-01-25 | 2021-06-01 | 潘长挺 | Bidirectional synchronous inner hole grinding machine |
| CN112917250A (en) * | 2021-01-25 | 2021-06-08 | 潘长挺 | Grinding method for machining arc-shaped inner hole of workpiece |
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| CN114131499B (en) * | 2021-12-02 | 2022-10-14 | 成都市鸿侠科技有限责任公司 | Surface precision treatment system and treatment process for split blade of aircraft engine |
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