CN109531301B - Grinding process for slender metal pipe fitting - Google Patents
Grinding process for slender metal pipe fitting Download PDFInfo
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- CN109531301B CN109531301B CN201910041126.6A CN201910041126A CN109531301B CN 109531301 B CN109531301 B CN 109531301B CN 201910041126 A CN201910041126 A CN 201910041126A CN 109531301 B CN109531301 B CN 109531301B
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- elastic metal
- pipe fitting
- abrasive particles
- box body
- metal net
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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
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
- B24B5/04—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally
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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
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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
- B24B31/12—Accessories; Protective equipment or safety devices; Installations for exhaustion of dust or for sound absorption specially adapted for machines covered by group B24B31/00
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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 belongs to the technical field of metal pipe polishing processes, and particularly relates to a slender metal pipe polishing process, which comprises the following steps: manually penetrating the elongated metal pipe fitting through the grinding equipment, and placing the elongated metal pipe fitting between two rollers at the lower end of the grinding equipment; filling abrasive particles into an elastic metal net bag in the polishing equipment through a feeding pipeline, wherein the abrasive particles polish the slender metal pipe fitting through meshes on the elastic metal net bag; the size of the abrasive particles is reduced after the abrasive particles are worn, and the abrasive particles leak from the meshes and fall into the next layer of elastic metal net bag; the abrasive particles finally leak out of the elastic metal string bag at the lowest layer and are discharged out of the polishing equipment for recycling, and the slender metal pipe fitting is continuously polished; according to the invention, friction is generated between the elongated metal pipe fitting and the abrasive particles in the moving process, so that the abrasive particles continuously roll when the elongated metal pipe fitting is polished, and the quality of the elongated metal pipe fitting polished by the abrasive particles is improved.
Description
Technical Field
The invention belongs to the technical field of metal pipe polishing processes, and particularly relates to a polishing process for a slender metal pipe.
Background
In the industrial and medical fields, the application of the slender pipe fitting is very wide. Especially when applied in the medical field, the surface roughness of the slender tube is required to be very high, and generally needs to be controlled below 0.12 um. The specification of the slender pipe fitting is that the diameter is between 0.7 and 3.8mm, the pipe wall thickness is between 0.08 and 0.2mm, and the tolerance of the pipe wall thickness is required to be within 0.02mm, the concentricity is good, the appearance is bright, the inner hole is smooth, and the form and position tolerance is ensured to be within 0.01 to 0.02 mm.
At present, most processing enterprises adopt an acid cleaning mode aiming at the surface polishing of a slender pipe fitting, and can meet the requirements of surface roughness and surface appearance. However, chemical polishing pollutes the environment and chemical agents are harmful to the human body, so that this technique cannot be a mainstream direction of precision machining.
In recent years, abrasive flow technology is gradually applied to the processing of the inner surface of a slender pipe fitting, and the principle is that fluid is pushed to move in the pipe by high pressure, and the fluid continuously impacts the surface. However, the processing efficiency of the method is low at present, and the surface grinding quality of the slender pipe fitting is low.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides a slender metal pipe polishing process which is mainly used for solving the problems that the existing pipe polishing process is poor in polishing precision of the slender metal pipe and low in polishing efficiency of the slender metal pipe.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a process for polishing a slender metal pipe fitting, which comprises the following steps:
s1: manually penetrating the elongated metal pipe fitting through the grinding equipment, and placing the elongated metal pipe fitting between two rollers at the lower end of the grinding equipment; the slender metal pipe fitting is placed on the roller through the grinding equipment, and is driven to move through the relative rotation of the roller, so that grinding is carried out, the continuity of pipe fitting grinding is ensured, and the grinding efficiency is improved; by using the polishing equipment, the polishing effect of the metal pipe fitting is effectively improved, and the polishing quality of the surface of the slender metal pipe fitting is improved;
s2: filling abrasive particles into an elastic metal net bag in the polishing equipment in S1 through a feeding pipeline, wherein the abrasive particles polish the slender metal pipe fitting through meshes on the elastic metal net bag; the slender metal pipe fitting penetrates through the channel in the middle of the elastic metal net bag and then is put into the abrasive particles, so that the problem that the slender metal pipe fitting cannot pass through the channel in the middle of the elastic metal net bag, and the polishing efficiency of the slender metal pipe fitting is reduced is avoided; meanwhile, the slender metal pipe fitting generates friction with the abrasive particles and the elastic metal net bag in the moving process, so that the abrasive particles continuously roll when the slender metal pipe fitting is polished, the effect that the abrasive particles act on the surface of the slender metal pipe fitting is ensured, and the quality of polishing the slender metal pipe fitting by the abrasive particles is improved; in addition, the elastic metal net bag can shake, so that the contact position of abrasive particles on the elastic metal net bag and the slender metal pipe fitting is changed, the slender metal pipe fitting is more comprehensively polished, and the polishing quality of the slender metal pipe fitting is improved;
s3: the abrasive particles in the S2 are reduced in size after being worn, and the abrasive particles leak out of the meshes and fall into the next layer of elastic metal net bag; the size of the abrasive particles is gradually reduced in the polishing process, so that the abrasive particles continuously fall into the next layer of elastic metal net bag, the size of the abrasive particles is continuously reduced, the polishing precision of the elongated metal pipe fitting by the abrasive particles is gradually improved, the size of the abrasive particles can be automatically updated along with the movement of the elongated metal pipe fitting, the steps of secondary finish machining are reduced, the working efficiency is improved, and the polishing quality of the elongated metal pipe fitting is also ensured;
s4: the abrasive particles in the S3 finally leak out of the elastic metal string bag at the lowest layer and are discharged out of the polishing equipment for recycling, and the slender metal pipe fitting is continuously polished; the slender metal pipe fitting continuously enters, the polishing work is continuously carried out, and a large amount of heat is taken away when the abrasive particles are discharged, so that the condition that the surface quality of the slender metal pipe fitting is influenced by the large amount of heat generated by friction between the abrasive particles and the slender metal pipe fitting is avoided;
the polishing equipment adopted in the S1 comprises a box body; the box body is of a cavity structure, a feed inlet is formed in the upper end of the box body, a discharge outlet is formed in the lower end of the box body, two sides of the discharge outlet are symmetrically and rotatably connected with two rollers through supports, and the rollers are used for driving the pipe fittings to move; at least three groups of elastic metal net bags are arranged in the box body; the elastic metal net bags are uniformly distributed in the length direction in the box body and are revolved bodies, the section of each elastic metal net bag is U-shaped, a channel for a pipe fitting to penetrate through is formed in the middle of each elastic metal net bag, uniformly distributed meshes are arranged on the elastic metal net bags, abrasive particles are arranged in the elastic metal net bags, the abrasive particles extend out of the meshes through one ends of the abrasive particles to be in contact with the pipe fitting, and the abrasive particles are used for polishing the pipe fitting; a feeding pipeline is arranged on the outer side of the box body corresponding to the elastic metal net bag; one end of the feeding pipeline penetrates through the box body and is arranged in the elastic metal net bag; an abrasive particle outlet is arranged below the box body, and a discharging plate connected with the abrasive particle outlet is obliquely arranged in the box body;
when the pipe fitting fixing device works, the pipe fitting sequentially penetrates through the feeding hole and the discharging hole by hand, the pipe fitting is arranged between the two rollers, and the pipe fitting is enabled to move ceaselessly by the rotation of the rollers; abrasive particles are introduced into the elastic metal net bag through the feeding pipeline, the abrasive particles penetrate through meshes on the elastic metal net bag to polish the pipe fitting, the size of the abrasive particles is reduced along with the friction of the pipe fitting with the abrasive particles, and the abrasive particles roll in the process of friction with the pipe fitting, so that the effect of polishing the pipe fitting by the abrasive particles is improved, and the quality of polishing the surface of the pipe fitting is improved; meanwhile, along with the movement of the pipe fitting, the friction between the pipe fitting and the abrasive particles drives the elastic metal string bag to shake, the contact position of the abrasive particles and the pipe fitting is automatically changed, and the positions of the abrasive particles and the pipe fitting acting on the pipe fitting are changed, so that the surface polishing effect of the pipe fitting is improved; the abrasive particles with the reduced size fall into the next layer of elastic metal net bag, the pipe fitting is continuously polished, the surface of the pipe fitting is polished more finely due to the fact that the size of the abrasive particles is continuously reduced, the surface polishing quality of the pipe fitting is further improved, meanwhile, due to the fact that the elastic metal net bags with the at least three layers are arranged, when the abrasive particles are continuously reduced and fall into the next layer, the size of the abrasive particles is automatically updated, the polishing precision of the surface of the pipe fitting is gradually improved along with the movement of the pipe fitting, the subsequent steps of secondary fine machining are reduced, the working efficiency is improved, and the labor intensity is reduced; the finally fallen abrasive grains are discharged and recovered from the abrasive grain outlet through the inclined discharge plate.
Preferably, a rotating module is arranged below the box body; the rotating module is arranged below the elastic metal net bag at the lowest layer, the elastic metal net bag at the lowest layer is rotatably connected in the box body through a first bearing, and an inward radian is arranged at the upper end of the elastic metal net bag at the lowest layer; the first bearing is arranged in a first ring groove arranged in the box body, and the first bearing and the bottom of the first ring groove are connected with a first spring; the rotating module comprises a gear ring, a first gear and a metal soft rod; the inner ring of the gear ring is provided with a tooth-shaped structure, and the gear ring is rotatably connected in a second ring groove arranged below the box body through a second bearing; the first gear is in meshing transmission with the gear ring and is driven by the motor; a protective shell is arranged on the outer side of the motor; one end of the metal soft rod is fixedly connected to the gear ring, and the other end of the metal soft rod is fixedly connected to the elastic metal net bag; when the elastic metal string bag works, the motor drives the first gear to drive the gear ring to rotate, the gear ring drives the elastic metal string bag to rotate through the metal soft rod, and the gear ring has a dislocation amount relative to the elastic metal string bag when the gear ring starts to rotate, so that the vertical height of the elastic metal string bag and the gear ring is changed, the elastic metal string bag shakes up and down in the rotating process, the up-and-down shaking of the elastic metal string bag is buffered and rebounded by utilizing the elasticity of the first spring, the elastic metal string bag shakes up and down continuously, the grinding of the pipe fitting is accelerated, the precision of the grinding of the surface of the pipe fitting is improved, and the grinding effect of abrasive particles on the pipe fitting is improved; the upper end of the elastic metal net bag is provided with an inward radian, so that when the elastic metal net bag rotates, abrasive particles are thrown out of the elastic metal net bag under the action of centrifugal force, and the work can be stably carried out.
Preferably, the lower end of the elastic metal net bag is connected with a conical spring; the upper end of the conical spring is connected into a first clamping groove formed in the elastic metal net bag, and the lower end of the conical spring is arranged in a second clamping groove formed in the box body; when the elastic metal string bag shakes up and down, the conical spring is arranged below the elastic metal string bag, so that shaking is intensified, the polishing quality of abrasive particles on the surface of the pipe fitting is improved, and meanwhile, the elastic metal string bag is supported by the conical spring, so that the stress is stable when the elastic metal string bag shakes up and down, the damage to the elastic metal string bag is reduced, and the service life of the elastic metal string bag is prolonged; and conical spring uses through placing at draw-in groove and No. two draw-in grooves, and conical spring is convenient for change and maintains, alleviates workman's cost of maintaining.
Preferably, meshes on the elastic metal net bags decrease from top to bottom, and meshes on the elastic metal net bag at the lowest layer are smaller than meshes on the elastic metal net bag at the upper layer by 0.01 mm; when the grinding wheel device works, after the abrasive particles on the upper layer fall into the elastic metal tuck net on the lowest layer, when the abrasive particles rotate along with the elastic metal tuck net to grind the pipe, the size of the abrasive particles is quickly reduced by 0.01mm, the abrasive particles fall from meshes of the elastic metal tuck net on the lowest layer, and high temperature generated by friction between the abrasive particles and the pipe is taken away through leakage of the abrasive particles, so that the surface of the pipe is prevented from being burnt, and the grinding quality of the surface of the pipe is improved; moreover, through continuous leakage of the abrasive particles, the abrasive particles in the elastic metal net bag at the lowest layer can be replaced quickly, the pipe polishing quality is guaranteed, and the polishing precision of a housekeeper is improved.
Preferably, a shaking device is arranged in the box body; the shaking device is arranged above the elastic metal net bag and comprises a supporting rod, a connecting rod and a stirring rod; one end of the supporting rod is hinged to the box body, the other end of the supporting rod is in contact with the pipe fitting, and a second spring is connected between the supporting rod and the box body; the connecting rod is hinged to the middle part of the supporting rod, and the lower part of the connecting rod is arranged in the elastic metal net bag; the stirring rods are arranged in a plurality and hinged to the connecting rod, the stirring rods are L-shaped and are used for stirring abrasive particles in the elastic metal net bag; the during operation, the bracing piece is through producing the friction with the pipe fitting contact, the bracing piece rotates downwards along with the removal of pipe fitting, and the elasticity effect of No. two springs is down repeated rotation from top to bottom, thereby make the bracing piece area connecting rod rock, and then make the stirring rod on the connecting rod shake the grit in the elastic metal string bag, make the grit enter into the mesh, make the grit fully contact with the pipe fitting, improve the effect of polishing of grit to the pipe fitting, and, along with the shake of stirring rod, make the elastic metal string bag shake, the effect of reinforcing grit pipe fitting of polishing, the quality of polishing of improvement work piece surface.
Preferably, two ends of the channel in the elastic metal net bag are provided with chamfer structures; during operation, the passageway both ends set up to the chamfer structure pipe fitting of being convenient for and pass to, when the pipe fitting moves down, make the passageway just tangent with the pipe fitting, the pipe fitting of being convenient for passes the passageway, simultaneously under frictional force drives, the grit on the chamfer is close to the pipe fitting, and then increases the grit quantity of contact automatically, improves the grit and polishes the quality of pipe fitting.
The invention has the following beneficial effects:
1. according to the invention, the slender metal pipe fitting is driven to move through the relative rotation of the rollers for polishing, so that the continuity of pipe fitting polishing is ensured, and the polishing efficiency is improved; the polishing equipment effectively improves the polishing effect of the metal pipe fitting and improves the surface polishing quality of the slender metal pipe fitting.
2. According to the invention, the friction is generated between the elongated metal pipe fitting and the abrasive particles in the moving process, so that the abrasive particles continuously roll when the elongated metal pipe fitting is polished, the effect that the abrasive particles act on the surface of the elongated metal pipe fitting is ensured, and the quality of polishing the elongated metal pipe fitting by the abrasive particles is further improved; the friction is generated between the slender metal pipe fitting and the elastic metal net bag, so that the elastic metal net bag shakes, the positions of abrasive particles on the elastic metal net bag, which are in contact with the slender metal pipe fitting, are changed, the slender metal pipe fitting is ground more comprehensively, and the grinding quality of the slender metal pipe fitting is improved.
3. According to the invention, the size of the abrasive particles is continuously reduced, and the grinding precision of the elongated metal pipe fitting by the abrasive particles is gradually improved, so that the size of the abrasive particles can be automatically updated along with the movement of the elongated metal pipe fitting, thereby reducing the steps of secondary finish machining, improving the working efficiency and ensuring the grinding quality of the elongated metal pipe fitting.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a front view of the grinding apparatus;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is an enlarged view of a portion of FIG. 2 at B;
FIG. 5 is an enlarged view of a portion of FIG. 2 at C;
in the figure: the vibrating device comprises a box body 1, rollers 2, a pipe fitting 3, an elastic metal net bag 4, a channel 5, abrasive particles 6, a discharging plate 7, a rotating module 8, a first bearing 9, a first annular groove 10, a gear ring 81, a first gear 82, a metal soft rod 83, a motor 84, a first spring 11, a conical spring 12, a first clamping groove 13, a second clamping groove 14, a vibrating device 15, a supporting rod 151, a connecting rod 152, a stirring rod 153 and a second spring 154.
Detailed Description
An elongated metal pipe polishing process according to an embodiment of the present invention will be described below with reference to fig. 1 to 5.
As shown in fig. 1 and 2, the present invention relates to a process for polishing an elongated metal tube, comprising the steps of:
s1: manually penetrating the elongated metal pipe fitting through the grinding equipment, and placing the elongated metal pipe fitting between two rollers at the lower end of the grinding equipment; the slender metal pipe fitting is placed on the roller through the grinding equipment, and is driven to move through the relative rotation of the roller, so that grinding is carried out, the continuity of pipe fitting grinding is ensured, and the grinding efficiency is improved; by using the polishing equipment, the polishing effect of the metal pipe fitting is effectively improved, and the polishing quality of the surface of the slender metal pipe fitting is improved;
s2: filling abrasive particles into an elastic metal net bag in the polishing equipment in S1 through a feeding pipeline, wherein the abrasive particles polish the slender metal pipe fitting through meshes on the elastic metal net bag; the slender metal pipe fitting penetrates through the channel in the middle of the elastic metal net bag and then is put into the abrasive particles, so that the problem that the slender metal pipe fitting cannot pass through the channel in the middle of the elastic metal net bag, and the polishing efficiency of the slender metal pipe fitting is reduced is avoided; meanwhile, the slender metal pipe fitting generates friction with the abrasive particles and the elastic metal net bag in the moving process, so that the abrasive particles continuously roll when the slender metal pipe fitting is polished, the effect that the abrasive particles act on the surface of the slender metal pipe fitting is ensured, and the quality of polishing the slender metal pipe fitting by the abrasive particles is improved; in addition, the elastic metal net bag can shake, so that the contact position of abrasive particles on the elastic metal net bag and the slender metal pipe fitting is changed, the slender metal pipe fitting is more comprehensively polished, and the polishing quality of the slender metal pipe fitting is improved;
s3: the abrasive particles in the S2 are reduced in size after being worn, and the abrasive particles leak out of the meshes and fall into the next layer of elastic metal net bag; the size of the abrasive particles is gradually reduced in the polishing process, so that the abrasive particles continuously fall into the next layer of elastic metal net bag, the size of the abrasive particles is continuously reduced, the polishing precision of the elongated metal pipe fitting by the abrasive particles is gradually improved, the size of the abrasive particles can be automatically updated along with the movement of the elongated metal pipe fitting, the steps of secondary finish machining are reduced, the working efficiency is improved, and the polishing quality of the elongated metal pipe fitting is also ensured;
s4: the abrasive particles in the S3 finally leak out of the elastic metal string bag at the lowest layer and are discharged out of the polishing equipment for recycling, and the slender metal pipe fitting is continuously polished; the slender metal pipe fitting continuously enters, the polishing work is continuously carried out, and a large amount of heat is taken away when the abrasive particles are discharged, so that the condition that the surface quality of the slender metal pipe fitting is influenced by the large amount of heat generated by friction between the abrasive particles and the slender metal pipe fitting is avoided;
the polishing equipment adopted in the S1 comprises a box body 1; the box body 1 is of a cavity structure, a feed inlet is formed in the upper end of the box body 1, a discharge outlet is formed in the lower end of the box body 1, two sides of the discharge outlet are symmetrically and rotatably connected with two rollers 2 through supports, and the rollers 2 are used for driving the pipe fitting 3 to move; at least three groups of elastic metal net bags 4 are arranged in the box body 1; the elastic metal net bags 4 are uniformly distributed in the length direction in the box body 1, the elastic metal net bags 4 are revolving bodies, the section shapes of the elastic metal net bags 4 are U-shaped, the middle parts of the elastic metal net bags 4 are provided with channels 5 for the pipe fittings 3 to pass through, the elastic metal net bags 4 are provided with uniformly distributed meshes, the elastic metal net bags 4 are internally provided with abrasive particles 6, the abrasive particles 6 extend out of the meshes through one ends to be in contact with the pipe fittings 3, and the abrasive particles 6 are used for polishing the pipe fittings 3; a feeding pipeline is arranged on the outer side of the box body 1 corresponding to the elastic metal net bag 4; one end of the feeding pipeline penetrates through the box body 1 and is arranged in the elastic metal net bag 4; an abrasive particle outlet is arranged below the box body 1, and a discharging plate 7 connected with the abrasive particle outlet is obliquely arranged in the box body 1;
when the pipe fitting cutting machine works, the pipe fitting 3 sequentially penetrates through the feeding hole and the discharging hole by hand, so that the pipe fitting 3 is arranged between the two rollers 2, and the pipe fitting 3 is enabled to move ceaselessly by the rotation of the rollers 2; abrasive particles 6 are introduced into the elastic metal net bag 4 through the feeding pipeline, the abrasive particles 6 penetrate through meshes on the elastic metal net bag 4 to polish the pipe fitting 3, the abrasive particles 6 rub with the pipe fitting 3 along with the movement of the pipe fitting 3, the size of the abrasive particles 6 is reduced, the abrasive particles 6 roll in the process of rubbing with the pipe fitting 3, the effect of polishing the pipe fitting 3 by the abrasive particles 6 is improved, and the surface polishing quality of the pipe fitting 3 is improved; meanwhile, along with the movement of the pipe fitting 3, the friction between the pipe fitting 3 and the abrasive particles 6 drives the elastic metal string bag 4 to shake, so that the positions of the abrasive particles 6 and the pipe fitting 3 acting on the pipe fitting 3 are changed, and the surface polishing effect of the pipe fitting 3 is improved; the vibration of the elastic metal net bag 4 enables the abrasive particles 6 to shake, the size of the abraded abrasive particles 6 is reduced, when the abrasive particles 6 leak out of the meshes, the subsequent abrasive particles 6 are filled into the meshes, the polishing work of the pipe fitting 3 is continuously and stably carried out, and the surface polishing quality of the pipe fitting 3 is improved; the abrasive particles 6 with the reduced size fall into the next layer of elastic metal string bag 4, the pipe fitting 3 is continuously polished, the size of the abrasive particles 6 is continuously reduced, the surface of the pipe fitting 3 is polished more finely, the surface polishing quality of the pipe fitting 3 is further improved, meanwhile, due to the arrangement of the at least three layers of elastic metal string bags 4, when the abrasive particles 6 are continuously reduced and fall into the next layer, the size of the abrasive particles 6 is automatically updated, the surface polishing precision of the pipe fitting 3 is gradually improved along with the movement of the pipe fitting 3, the subsequent steps of secondary finish machining are reduced, the working efficiency is improved, and the labor intensity is reduced; the finally dropped abrasive grains are discharged and recovered from the abrasive grain outlet through the inclined discharge plate 7.
As shown in fig. 2 and 5, a rotating module 8 is arranged below the box body 1; the rotating module 8 is arranged below the lowermost elastic metal string bag 4, the lowermost elastic metal string bag 4 is rotatably connected in the box body 1 through a first bearing 9, and an inward radian is arranged at the upper end of the lowermost elastic metal string bag 4; the first bearing 9 is arranged in a first ring groove 10 arranged in the box body 1, and the bottoms of the first bearing 9 and the first ring groove 10 are connected with a first spring 11; the rotating module 8 comprises a gear ring 81, a first gear 82 and a metal soft rod 83; the inner ring of the gear ring 81 is provided with a tooth-shaped structure, and the gear ring 81 is rotatably connected in a second ring groove arranged below the box body 1 through a second bearing; the first gear 82 is in meshing transmission with the gear ring 81, and the first gear 82 is driven by a motor 84; a protective shell is arranged outside the motor 84; one end of the metal soft rod 83 is fixedly connected to the gear ring 81, and the other end of the metal soft rod 83 is fixedly connected to the elastic metal net bag 4; when the pipe fitting polishing machine works, the motor 84 drives the first gear 82 to drive the gear ring 81 to rotate, the gear ring 81 drives the elastic metal string bag 4 to rotate through the metal soft rod 83, and when the gear ring 81 starts to rotate, the gear ring 81 has a dislocation amount relative to the elastic metal string bag 4, so that the vertical height of the elastic metal string bag 4 and the gear ring 81 is changed, the elastic metal string bag 4 shakes up and down in the rotating process, the up and down shaking of the elastic metal string bag 4 is buffered and rebounded through the elasticity of the first spring 11, the elastic metal string bag 4 shakes up and down continuously, the polishing of the pipe fitting 3 is accelerated, the surface polishing precision of the pipe fitting 3 is improved, and the polishing effect of the abrasive particles 6 on the pipe fitting 3 is improved; the upper end of the elastic metal string bag 4 is provided with an inward radian, so that when the elastic metal string bag 4 rotates, the abrasive particles 6 are thrown out of the elastic metal string bag 4 under the action of centrifugal force, and the work can be stably carried out.
As shown in fig. 2 and 4, a conical spring 12 is connected to the lower end of the elastic metal string bag 4; the upper end of the conical spring 12 is connected into a first clamping groove 13 arranged on the elastic metal net bag 4, and the lower end of the conical spring 12 is arranged in a second clamping groove 14 arranged in the box body 1; when the device works, the elastic metal string bag 4 is rubbed by the movement of the pipe fitting 3, so that the elastic metal string bag 4 shakes up and down, the conical spring 12 is arranged below the elastic metal string bag 4, shaking is intensified, the grinding quality of the surface of the pipe fitting 3 by the abrasive particles 6 is improved, and meanwhile, the elastic metal string bag 4 is supported by the conical spring 12, so that the elastic metal string bag 4 is more stable in stress when shaking up and down, the damage to the elastic metal string bag 4 is reduced, and the service life of the elastic metal string bag 4 is prolonged; moreover, the conical spring 12 is placed in the first clamping groove 13 and the second clamping groove 14 for use, so that the conical spring 12 is convenient to replace and maintain, and the maintenance cost of workers is reduced.
As shown in fig. 2, the meshes on the elastic metal net bags 4 decrease from top to bottom, and the meshes on the elastic metal net bag 4 at the lowest layer are 0.01mm smaller than the meshes on the elastic metal net bag 4 at the upper layer; when the pipe fitting polishing machine works, after the abrasive particles 6 on the upper layer fall into the elastic metal net bag 4 on the lowest layer, when the abrasive particles 6 rotate along with the elastic metal net bag 4 to polish the pipe fitting 3, the size of the abrasive particles 6 is rapidly reduced by 0.01mm, the abrasive particles fall from meshes of the elastic metal net bag 4 on the lowest layer, and high temperature generated by friction between the abrasive particles 6 and the pipe fitting 3 is taken away through leakage of the abrasive particles 6, so that the surface of the pipe fitting 3 is prevented from being burnt, and the surface polishing quality of the pipe fitting 3 is improved; moreover, through continuous leakage of the abrasive particles 6, the abrasive particles 6 in the elastic metal net bag 4 at the lowest layer can be replaced quickly, the grinding quality of the pipe fitting 3 is guaranteed, and the grinding precision of a housekeeper is improved.
As shown in fig. 3, a shaking device 15 is arranged in the box body 1; the shaking device 15 is arranged above the elastic metal net bag 4, and the shaking device 15 comprises a support rod 151, a connecting rod 152 and a stirring rod 153; one end of the supporting rod 151 is hinged to the box body 1, the other end of the supporting rod 151 is in contact with the pipe fitting 3, and a second spring 154 is connected between the supporting rod 151 and the box body 1; the connecting rod 152 is hinged in the middle of the supporting rod 151, and the lower part of the connecting rod 152 is arranged in the elastic metal net bag 4; the stirring rods 153 are provided with a plurality of stirring rods 153, the stirring rods 153 are hinged on the connecting rod 152, the stirring rods 153 are L-shaped, and the stirring rods 153 are used for stirring the abrasive particles 6 in the elastic metal net bag 4; during operation, bracing piece 151 produces the friction through contacting with pipe fitting 3, bracing piece 151 rotates along with pipe fitting 3's removal downwards, and rotate about repeating under spring action of No. two springs 154, thereby make bracing piece 151 take connecting rod 152 to rock, and then make the stirring rod 153 on the connecting rod 152 shake the grit 6 in the elastic metal string bag 4, make grit 6 enter into the mesh, make grit 6 fully contact with pipe fitting 3, improve the effect of polishing of grit 6 to pipe fitting 3, and, along with the shake of stirring rod 153, make elastic metal string bag 4 shake, the effect of reinforcing grit 6 pipe fitting 3 of polishing, the polishing quality of improvement work piece surface.
As shown in fig. 2 and 3, two ends of the channel 5 in the elastic metal string bag 4 are provided with a chamfer structure; during operation, 5 both ends of passageway set up to chamfer structure pipe fitting 3 of being convenient for and pass to, when pipe fitting 3 moves down, make passageway 5 just tangent with pipe fitting 3, the pipe fitting 3 of being convenient for passes the passageway, and grit 6 is close to pipe fitting 3 at friction drive down simultaneously, and then the 6 quantity of grit that increase the contact automatically, improves the quality that grit 6 polished pipe fitting 3.
The specific working process is as follows:
when the pipe fitting cutting machine works, the pipe fitting 3 sequentially penetrates through the feeding hole and the discharging hole by hand, so that the pipe fitting 3 is arranged between the two rollers 2, and the pipe fitting 3 is enabled to move ceaselessly by the rotation of the rollers 2; abrasive particles 6 are introduced into the elastic metal net bag 4 through the feeding pipeline, the abrasive particles 6 penetrate through meshes on the elastic metal net bag 4 to polish the pipe fitting 3, the abrasive particles 6 rub with the pipe fitting 3 along with the movement of the pipe fitting 3, the size of the abrasive particles 6 is reduced, the abrasive particles 6 roll in the process of rubbing with the pipe fitting 3, the effect of polishing the pipe fitting 3 by the abrasive particles 6 is improved, and the surface polishing quality of the pipe fitting 3 is improved; meanwhile, along with the movement of the pipe fitting 3, the friction between the pipe fitting 3 and the abrasive particles 6 drives the elastic metal string bag 4 to shake, so that the positions of the abrasive particles 6 and the pipe fitting 3 acting on the pipe fitting 3 are changed, and the surface polishing effect of the pipe fitting 3 is improved; the vibration of the elastic metal net bag 4 enables the abrasive particles 6 to shake, the size of the abraded abrasive particles 6 is reduced, when the abrasive particles 6 leak out of the meshes, the subsequent abrasive particles 6 are filled into the meshes, the polishing work of the pipe fitting 3 is continuously and stably carried out, and the surface polishing quality of the pipe fitting 3 is improved; the abrasive particles 6 with the reduced size fall into the next layer of elastic metal string bag 4, the pipe fitting 3 is continuously polished, the size of the abrasive particles 6 is continuously reduced, the surface of the pipe fitting 3 is polished more finely, the surface polishing quality of the pipe fitting 3 is further improved, meanwhile, due to the arrangement of the at least three layers of elastic metal string bags 4, when the abrasive particles 6 are continuously reduced and fall into the next layer, the size of the abrasive particles 6 is automatically updated, the surface polishing precision of the pipe fitting 3 is gradually improved along with the movement of the pipe fitting 3, the subsequent steps of secondary finish machining are reduced, the working efficiency is improved, and the labor intensity is reduced; the finally dropped abrasive grains are discharged and recovered from the abrasive grain outlet through the inclined discharge plate 7.
In the description of the present invention, it is to be understood that the terms "center", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the present invention.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (1)
1. A grinding process for slender metal pipes is characterized in that: the process comprises the following steps:
s1: manually threading the elongated metal tube through the grinding device and placing the elongated metal tube between two rollers at the lower end of the grinding device;
s2: filling abrasive particles into an elastic metal net bag in the polishing equipment in S1 through a feeding pipeline, wherein the abrasive particles polish the slender metal pipe fitting through meshes on the elastic metal net bag;
s3: the abrasive particles in the S2 are reduced in size after being worn, and the abrasive particles leak out of the meshes and fall into the next layer of elastic metal net bag;
s4: the abrasive particles in the S3 finally leak out of the elastic metal string bag at the lowest layer and are discharged out of the polishing equipment for recycling, and the slender metal pipe fitting is continuously polished;
the grinding equipment adopted in the S1 comprises a box body (1); the box body (1) is of a cavity structure, a feeding hole is formed in the upper end of the box body (1), a discharging hole is formed in the lower end of the box body (1), two rollers (2) are symmetrically and rotatably connected to two sides of the discharging hole through supports, and the rollers (2) are used for driving the pipe fitting (3) to move; at least three groups of elastic metal net bags (4) are arranged in the box body (1); the elastic metal tucks (4) are uniformly distributed in the length direction in the box body (1), the elastic metal tucks (4) are a revolving body, the section of each elastic metal tuck (4) is U-shaped, a channel (5) for a pipe fitting (3) to pass through is arranged in the middle of each elastic metal tuck (4), uniformly distributed meshes are arranged on each elastic metal tuck (4), abrasive particles (6) are arranged in each elastic metal tuck (4), the abrasive particles (6) extend out of the meshes through one end to be in contact with the pipe fitting (3), and the abrasive particles (6) are used for polishing the pipe fitting (3); a feeding pipeline is arranged on the outer side of the box body (1) corresponding to the elastic metal net bag (4); one end of the feeding pipeline penetrates through the box body (1) and is arranged in the elastic metal net bag (4); an abrasive particle outlet is arranged below the box body (1), and a discharging plate (7) connected with the abrasive particle outlet is obliquely arranged in the box body (1);
a rotating module (8) is arranged below the box body (1); the rotating module (8) is arranged below the elastic metal net bag (4) at the lowest layer, and the elastic metal net bag (4) at the lowest layer is rotatably connected in the box body (1) through a first bearing (9); the first bearing (9) is arranged in a first annular groove (10) arranged in the box body (1), and the bottoms of the first bearing (9) and the first annular groove (10) are connected with a first spring (11); the rotating module (8) comprises a gear ring (81), a first gear (82) and a metal soft rod (83); the inner ring of the gear ring (81) is provided with a tooth-shaped structure, and the gear ring (81) is rotatably connected in a second ring groove arranged below the box body (1) through a second bearing; the first gear (82) is in meshed transmission with the gear ring (81), and the first gear (82) is driven by a motor (84); a protective shell is arranged on the outer side of the motor (84); one end of the metal soft rod (83) is fixedly connected to the gear ring (81), and the other end of the metal soft rod (83) is fixedly connected to the elastic metal net bag (4);
the lower ends of all the elastic metal net bags (4) above the elastic metal net bag (4) at the lowest layer are connected with conical springs (12); the upper end of the conical spring (12) is connected into a first clamping groove (13) formed in the elastic metal net bag (4), and the lower end of the conical spring (12) is arranged in a second clamping groove (14) formed in the box body (1);
meshes on the elastic metal net bags (4) are sequentially reduced from top to bottom, and the meshes on the elastic metal net bag (4) at the lowest layer are 0.01mm smaller than the meshes on the elastic metal net bag (4) at the upper layer;
a shaking device (15) is arranged in the box body (1); all the elastic metal net bags (4) above the elastic metal net bag (4) at the lowest layer are provided with a shaking device (15), and the shaking device (15) comprises a support rod (151), a connecting rod (152) and a stirring rod (153); one end of the supporting rod (151) is hinged to the box body (1), the other end of the supporting rod (151) is in contact with the pipe fitting (3), and a second spring (154) is connected between the supporting rod (151) and the box body (1); the connecting rod (152) is hinged to the middle part of the supporting rod (151), and the lower part of the connecting rod (152) is arranged in the elastic metal net bag (4); the stirring rods (153) are arranged in number, the stirring rods (153) are hinged to the connecting rod (152), the stirring rods (153) are L-shaped, and the stirring rods (153) are used for stirring abrasive particles (6) in the elastic metal net bag (4);
and chamfer structures are arranged at two ends of the channel (5) in the elastic metal net bag (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910041126.6A CN109531301B (en) | 2019-01-16 | 2019-01-16 | Grinding process for slender metal pipe fitting |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910041126.6A CN109531301B (en) | 2019-01-16 | 2019-01-16 | Grinding process for slender metal pipe fitting |
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| CN109531301B true CN109531301B (en) | 2021-08-24 |
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| CN112571305A (en) * | 2020-11-19 | 2021-03-30 | 通鼎互联信息股份有限公司 | Device for enhancing surface roughness of steel wire and using method |
| CN114134547A (en) * | 2021-11-18 | 2022-03-04 | 陈泽旺 | Electroplating system |
| CN117103101B (en) * | 2023-10-25 | 2024-01-30 | 安徽齐天文具制造有限公司 | Stationery board clamp shaving and polishing device for stationery |
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| CN205465497U (en) * | 2016-03-07 | 2016-08-17 | 松阳上上德盛不锈钢有限公司 | Steel pipe polishing device |
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| CN106956173A (en) * | 2017-03-28 | 2017-07-18 | 吴小江 | A kind of mechanical outer surface of steel tube abrasive machining device |
| CN109202737A (en) * | 2018-11-14 | 2019-01-15 | 邢箫 | A kind of weld grinding technique of stainless steel welded pipe |
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2019
- 2019-01-16 CN CN201910041126.6A patent/CN109531301B/en not_active Expired - Fee Related
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| EP1112811A2 (en) * | 2000-01-03 | 2001-07-04 | Otto Suhner AG | Belt grinding machine for grinding of tubing |
| CN105215861A (en) * | 2015-09-30 | 2016-01-06 | 北京国电富通科技发展有限责任公司 | A kind of tube surface cleaning plant |
| CN205465497U (en) * | 2016-03-07 | 2016-08-17 | 松阳上上德盛不锈钢有限公司 | Steel pipe polishing device |
| CN205835065U (en) * | 2016-06-03 | 2016-12-28 | 湖南自洁材料研究院有限公司 | Outer surface of steel tube abrasive brush and include the grinding apparatus of this abrasive brush |
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| CN109202737A (en) * | 2018-11-14 | 2019-01-15 | 邢箫 | A kind of weld grinding technique of stainless steel welded pipe |
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