CN111644810B - Manufacturing process of U-shaped aluminum pipe - Google Patents
Manufacturing process of U-shaped aluminum pipe Download PDFInfo
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- CN111644810B CN111644810B CN202010441685.9A CN202010441685A CN111644810B CN 111644810 B CN111644810 B CN 111644810B CN 202010441685 A CN202010441685 A CN 202010441685A CN 111644810 B CN111644810 B CN 111644810B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D79/00—Methods, machines, or devices not covered elsewhere, for working metal by removal of material
- B23D79/02—Machines or devices for scraping
- B23D79/04—Machines or devices for scraping with rotating cutting-tool, e.g. for smoothing linings of bearings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/10—Arrangements for cooling or lubricating tools or work
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Abstract
The invention relates to the technical field of aluminum pipe manufacturing, in particular to a manufacturing process of a U-shaped aluminum pipe, which comprises the following steps: s1: bending pretreatment: selecting an aluminum pipe according to requirements, clamping the aluminum pipe through a clamp, removing burrs inside and outside a port of the aluminum pipe by using a deburring device, polishing the end face of the aluminum pipe, and then placing the aluminum pipe on bending equipment; s2: inserting a core rod: and inserting the core rod into the aluminum pipe from one end of the aluminum pipe, wherein the end part of the insertion end of the core rod is flush with the starting point of the bending section of the aluminum pipe, and the outer diameter of the core rod is consistent with the inner diameter of the pipe body. Through the setting of burring device, can be simultaneously to the inside and outside burring operation of aluminum pipe, work efficiency is high, simultaneously can also in time discharge interior cutting edge and the outer burr between the cutting edge, avoid the burr to scrape the aluminum pipe terminal surface after the flower burring, cause the aluminum pipe damage, improve the cutting environment, improve the cooling effect, avoid being heated the aluminum pipe and lead to warping and produce the influence to subsequent process of bending.
Description
Technical Field
The invention relates to the technical field of aluminum pipe manufacturing, in particular to a manufacturing process of a U-shaped aluminum pipe.
Background
The condenser is a component of the refrigerator system that transfers heat from the tubes to the air in the vicinity of the tubes in a rapid manner, and is mounted in front of the radiator on most automobiles. A device for converting a gas or vapor to a liquid. The power plant uses a plurality of condensers to condense the steam discharged from the turbine; condensers are used in refrigeration plants to condense refrigeration vapors such as ammonia and freon. The petrochemical industry uses condensers to condense hydrocarbons and other chemical vapors. In the distillation process, the apparatus that converts the vapor to a liquid is called a condenser. All condensers operate by removing heat from the gas or vapor. The aluminum pipe used as the condenser is required to be ensured in service life and use effect during production, generally, the aluminum pipe is required to be subjected to the working procedures of cutting, deburring, bending and the like in sequence during installation of the aluminum pipe, and deburring is an important working procedure in the aluminum pipe machining process.
The invention discloses a conduit end face deburring device (application number: 2016103965119), relates to a conduit processing device, and particularly relates to a conduit end face deburring device, which comprises: the cutter bar is in a circular truncated cone shape and comprises a circular first end and a closed second end, wherein the first end is provided with at least one rectangular opening; the blade is arranged in the rectangular opening of the cutter bar, and the size of the blade is matched with that of the rectangular opening; the connecting part is a sleeve sleeved with the cutter bar and used for fixing the blade; wherein, the length direction of the rectangular opening is consistent with the axial direction of the cutter bar. Although the invention solves the problems of low removal efficiency, poor removal effect and inconvenient blade replacement in the existing method, the invention can realize the rapid replacement of the blade, conveniently remove burrs and ensure the removal effect; however, the burrs scraped by the inventive blade are retained in the gaps between the blades and rotate along with the rotation of the blades, so that the end face of the deburred aluminum pipe is easily scraped, the aluminum pipe is damaged, the service life of the aluminum pipe is influenced, and the subsequent bending process is influenced, so that the improvement of the aluminum pipe is needed.
Disclosure of Invention
In order to make up for the defects of the prior art and solve the problem that the aluminum pipe is damaged due to the fact that the end face of the aluminum pipe is easy to scrape and flower after deburring in the prior art, the invention provides a manufacturing process of a U-shaped aluminum pipe.
The technical scheme adopted by the invention for solving the technical problems is as follows: a manufacturing process of a U-shaped aluminum pipe comprises the following steps:
s1: bending pretreatment: selecting an aluminum pipe according to requirements, clamping the aluminum pipe through a clamp, removing burrs inside and outside a port of the aluminum pipe by using a deburring device, polishing the end face of the aluminum pipe, and then placing the aluminum pipe on bending equipment;
s2: inserting a core rod: inserting a core rod into the aluminum pipe from one end of the aluminum pipe, wherein the end part of the insertion end of the core rod is flush with the starting point of the bending section of the aluminum pipe, and the outer diameter of the core rod is consistent with the inner diameter of the pipe body;
s3: bending the aluminum pipe: starting the bending equipment, extruding and bending the aluminum pipe by a bending die of the bending equipment, wherein in the bending process, the core rod is always pulled out of the aluminum pipe backwards along the tangential direction of the bending position of the bending section of the aluminum pipe, the pulling speed of the core rod is consistent with the bending speed of the bending die and keeps synchronous, and after the bending section of the aluminum pipe is formed, the core rod is pulled out of the aluminum pipe body to form a U-shaped aluminum pipe;
the deburring device comprises a base, a motor, a reduction gearbox, a rotating shaft and a deburring head, wherein the motor is arranged on one side of the upper end of the base, the reduction gearbox is arranged on the other side of the upper end of the base, the motor is in transmission connection with the reduction gearbox, and the output end of the upper side of the reduction gearbox is connected with the deburring head through the rotating shaft; the burr head comprises a chassis connected with the rotating shaft and a sleeve fixed on the chassis, the sleeve comprises an outer cylinder and an inner cylinder, a cavity between the outer cylinder and the inner cylinder forms an annular groove, a plurality of external cutting edges are uniformly distributed on the inner wall of the inner cylinder, and a through communicating groove is formed in the inner cylinder between every two adjacent external cutting edges; the lower end of the outer barrel and the lower end of the inner barrel are fixedly connected through an annular plate, and the annular plate is fixedly arranged on the chassis; the chassis comprises a disc connected with the rotating shaft, a cutting column which extends into the inner cylinder and is coaxially arranged with the inner cylinder is arranged on the disc, and a plurality of inner cutting edges are uniformly distributed on the outer wall of the cutting column.
When the deburring machine is used, the end part of the aluminum pipe is inserted into the inner cylinder of the deburring head, so that the inner wall and the outer wall of the aluminum pipe are respectively removed from the inner cutting edge and the outer cutting edge, then the aluminum pipe is clamped and fixed through the clamp, the motor is started, the motor drives the deburring head to rotate through the reduction gearbox and the rotating shaft, the inner cutting edge and the outer cutting edge are used for deburring the inner wall and the outer wall of the end part of the aluminum pipe, and meanwhile, the inner wall and the outer wall of the end part of the aluminum pipe are processed; generally speaking the outside burr of aluminum pipe is more relatively, the burr of scraping off can persist in the clearance between the outer cutting edge, and can rotate along with the rotation of outer cutting edge, lead to its easy secondary to scrape the aluminum pipe terminal surface after the flower burring, cause the aluminum pipe damage, and still produce a large amount of heats when it is scraped, lead to the aluminum pipe to warp, influence its life, consequently, setting through the intercommunication groove, can utilize centrifugal force to get rid of the burr after the outer cutting edge excision into the ring channel in, reduce the secondary and scrape the risk that flower aluminum pipe terminal surface and aluminum pipe warp, simultaneously can also accomodate the burr in the ring channel, avoid directly getting rid of and hindering people's the condition.
Preferably, the disc at the periphery of the cutting column is provided with a slag discharge groove which extends to the outer wall of the disc and is communicated with the external space, the slag discharge groove is arc-shaped, the width of the slag discharge groove is gradually increased from inside to outside, the disc between adjacent slag discharge grooves forms an arc-shaped boss, and the surface of the arc-shaped boss is provided with a graphite tile; the slag discharge groove can timely discharge burrs removed by the inner cutting edge and the outer cutting edge by using centrifugal force, so that the burrs are prevented from scratching the aluminum pipe, high temperature generated when the burrs are scratched is reduced, the deformation of the aluminum pipe is caused, and the processing quality of the aluminum pipe is ensured. Because the existing deburring head is generally only arranged into an opening towards one end of the aluminum pipe, and is arranged into a sealing end at one side far away from the aluminum pipe because of being connected with the rotating shaft, part of burrs can stay at the sealing end and cannot be discharged in time, and the aluminum pipe is scratched or scratched to generate the condition of high temperature and deformation of the aluminum pipe, so that the burrs cut off by the inner cutting edge and the outer cutting edge at one side close to the disc can be thrown out through the arrangement of the slag discharge groove which is gradually enlarged from inside to outside, the condition of deformation of the aluminum pipe caused by high temperature due to scratching or scratching of the aluminum pipe is ensured, and the quality of the aluminum pipe is ensured; meanwhile, the slag discharge groove is communicated with the outside, so that the flow of air in the gaps between the inner cutting edges or the gaps between the outer cutting edges can be accelerated, the heat exchange is accelerated, and the aluminum pipe is further prevented from being heated and deformed; the graphite tile can polish the end face of the aluminum pipe.
Preferably, a guide groove is arranged on the periphery of the cutting column between the adjacent inner cutting edges, the rotating direction of the guide groove is the same as that of the slag discharging groove, and the lower end of the guide groove is communicated with the inner side of the slag discharging groove; the guiding groove can not only generate cyclone when rotating along with the cutting column to cool the inner cutting edge and the inner side of the aluminum pipe, so that the aluminum pipe is prevented from being heated and deformed, but also can actively force the removed burrs to move downwards, and the discharge of the burrs is accelerated. The guide groove generates cyclone when rotating along with the cutting column, so that the air flow of the gap between the inner cutting edges is accelerated, the inner cutting edges and the inner side of the aluminum pipe are cooled, the aluminum pipe is prevented from being heated and deformed, meanwhile, the effect of the spiral auger is equivalent to that of actively forcing the removed burrs to move downwards, and the discharge of the burrs is accelerated.
Preferably, the inner side surface of the upper end of the inner cylinder is provided with an annular boss, and the height of the annular boss is matched with that of the external cutting edge; the annular boss can prevent burrs removed by the external cutting edge from being thrown out of the upper end of the inner barrel, and people are prevented from being injured. The burrs cut off by the outer cutting edge of the inner cylinder can be arranged in the gap between the adjacent outer cutting edges, although most of the burrs can be thrown into the annular groove through the communicating groove or directly discharged through the slag discharge groove, a small part of the burrs can be still thrown out from the upper end of the inner cylinder in high-speed rotation, people are easily injured, and therefore the probability that the burrs are thrown out from the upper end face is reduced through the arrangement of the annular boss, and the safety is improved.
Preferably, a plurality of slag discharge holes are uniformly distributed on the annular plate along the circumferential direction, and the slag discharge holes are positioned above the outer side of the corresponding slag discharge groove. The part of burrs entering the annular groove can be discharged through the slag discharging hole, the number of times of cleaning the annular groove is reduced, the labor intensity is reduced, meanwhile, the burrs discharged through the slag discharging hole can collide with the burrs thrown out by the slag discharging groove, the kinetic energy of the burrs thrown out by the slag discharging groove is reduced, the maximum range of throwing out of the burrs is reduced, and the risk of hurting people is further reduced.
Preferably, the upper end face of the outer barrel is higher than the upper end face of the inner barrel, a plurality of arc-shaped baffles are arranged on the inner wall of the outer barrel above the inner barrel at intervals along the circumferential direction, the rotating direction of each arc-shaped baffle is the same as that of the annular groove, and the arc-shaped baffles gradually extend towards one side of the inner barrel along the rotating direction of the arc-shaped baffles. The arc-shaped baffle can form a blocking surface above the annular groove and the inner cylinder when rotating, the rotating direction and the extending direction of the arc-shaped baffle can be selected to enable the blocked burrs to be pressed into the annular groove again, the situation that the burrs are thrown out of the upper end to hurt people is avoided, meanwhile, downward moving air flow can be generated along with the rotation of the outer cylinder, the burrs are difficult to be thrown out of the upper end, the risk that the upper end throws the burrs to hurt people is further reduced, and the safety is improved; in addition, the air flow moving downwards can provide a better cooling effect, the aluminum pipe is prevented from being heated and deformed, burr discharging can be accelerated better, and the phenomenon that the burrs are blocked and blocked is avoided.
The invention has the following beneficial effects:
1. according to the manufacturing process of the U-shaped aluminum pipe, the deburring device is arranged, the deburring operation can be simultaneously carried out on the inside and the outside of the aluminum pipe, the working efficiency is high, simultaneously, burrs between the inner cutting edge and the outer cutting edge can be timely discharged, and the damage to the aluminum pipe caused by the end face of the aluminum pipe subjected to deburring by scraping of the burrs is avoided.
2. According to the manufacturing process of the U-shaped aluminum pipe, the arrangement of the guide groove, the slag discharge groove and the annular groove can improve the air flow at the inner cutting edge and the outer cutting edge, improve the cutting environment, improve the cooling effect and avoid the influence on the subsequent bending process caused by the deformation of the aluminum pipe due to heating.
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 perspective view of a deburring apparatus used in the present invention;
FIG. 3 is a perspective view of a deburring apparatus used in the present invention;
FIG. 4 is a cross-sectional view from one perspective of a deburring head used in the deburring apparatus of the present invention;
FIG. 5 is a cross-sectional view of another perspective of a deburring head for use in the deburring apparatus of the present invention;
FIG. 6 is a perspective view of a base plate in the deburring apparatus used in the present invention;
in the figure:
the slag removing device comprises a base 1, a motor 2, a reduction gearbox 3, a rotating shaft 4, a chassis 5, a disc 51, an inserting rod 52, an inner cutting edge 53, a guide groove 54, an arc-shaped boss 55, a slag discharging groove 56, a sleeve 6, an outer cylinder 61, an inner cylinder 62, an annular groove 63, an outer cutting edge 64, a communicating groove 65, an arc-shaped baffle 66 and a slag discharging hole 67.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 6, a process for manufacturing a U-shaped aluminum pipe. The method comprises the following steps:
s1: bending pretreatment: selecting an aluminum pipe according to requirements, clamping the aluminum pipe through a clamp, removing burrs inside and outside a port of the aluminum pipe by using a deburring device, polishing the end face of the aluminum pipe, and then placing the aluminum pipe on bending equipment;
s2: inserting a core rod: inserting a core rod into the aluminum pipe from one end of the aluminum pipe, wherein the end part of the insertion end of the core rod is flush with the starting point of the bending section of the aluminum pipe, and the outer diameter of the core rod is consistent with the inner diameter of the pipe body;
s3: bending the aluminum pipe: starting the bending equipment, extruding and bending the aluminum pipe by a bending die of the bending equipment, wherein in the bending process, the core rod is always pulled out of the aluminum pipe backwards along the tangential direction of the bending position of the bending section of the aluminum pipe, the pulling speed of the core rod is consistent with the bending speed of the bending die and keeps synchronous, and after the bending section of the aluminum pipe is formed, the core rod is pulled out of the aluminum pipe body to form a U-shaped aluminum pipe;
the deburring device comprises a base 1, a motor 2, a reduction gearbox 3, a rotating shaft 4 and a deburring head, wherein the motor 2 is arranged on one side of the upper end of the base 1, the reduction gearbox 3 is arranged on the other side of the upper end of the base 1, the motor 2 is in transmission connection with the reduction gearbox 3, and the output end of the upper side of the reduction gearbox 3 is connected with the deburring head through the rotating shaft 4; the burr head comprises a chassis 5 connected with the rotating shaft 4 and a sleeve 6 fixed on the chassis 5, the sleeve 6 comprises an outer cylinder 61 and an inner cylinder 62, a cavity between the outer cylinder 61 and the inner cylinder 62 forms an annular groove 63, a plurality of outer cutting edges 64 are uniformly distributed on the inner wall of the inner cylinder 62, and a through communicating groove 65 is formed in the inner cylinder 62 between the adjacent outer cutting edges 64; the lower end of the outer cylinder 61 and the lower end of the inner cylinder 62 are fixedly connected through an annular plate, and the annular plate is fixedly arranged on the chassis 5; the chassis 5 comprises a disc 51 connected with the rotating shaft 4, a cutting column 52 which extends into the inner cylinder 62 and is coaxially arranged with the inner cylinder 51 is arranged on the disc 51, and a plurality of inner cutting edges 53 are uniformly distributed on the outer wall of the cutting column 52.
When the deburring machine is used, the end part of an aluminum pipe is inserted into the inner cylinder 62 of the deburring head, so that the inner wall and the outer wall of the aluminum pipe are respectively removed from the inner cutting edge 53 and the outer cutting edge 64, then the aluminum pipe is clamped and fixed through the clamp, the motor 2 is started, the motor 2 drives the deburring head to rotate through the reduction box 3 and the rotating shaft 4, the inner cutting edge 53 and the outer cutting edge 64 are used for deburring on the inner wall and the outer wall of the end part of the aluminum pipe, and meanwhile, the inner wall and the outer wall of the end part of the aluminum pipe are processed, so; generally speaking, the burrs outside the aluminum tube are relatively more, the scraped burrs can be remained in the gap between the outer cutting edges 64, the scraped burrs can rotate along with the rotation of the outer cutting edges 64, the aluminum tube end face after the burrs are scraped for the second time easily, the aluminum tube is damaged, a large amount of heat is generated during scraping, the aluminum tube is deformed, the service life of the aluminum tube is prolonged, the communicating groove 65 is arranged, the burrs after the outer cutting edges 64 are cut off can be thrown into the annular groove 63 by using centrifugal force, the risk of deformation of the end face and the aluminum tube due to the second time scraping is reduced, meanwhile, the burrs can be stored in the annular groove 63, and the situation that people are injured due to the burrs caused by the burrs due to the fact that.
As an embodiment of the invention, a slag discharge groove 56 extending to the outer wall of the disc 51 and communicated with the external space is arranged on the disc 51 at the periphery of the cutting column 52, the slag discharge groove 56 is arc-shaped, the width of the slag discharge groove 56 is gradually increased from inside to outside, the disc 51 between adjacent slag discharge grooves 56 forms an arc-shaped boss 55, and a graphite tile is arranged on the surface of the arc-shaped boss 55; the slag discharge groove 56 can timely discharge burrs removed by the inner cutting edge 53 and the outer cutting edge 64 by using centrifugal force, so that the aluminum pipe is prevented from being scratched by the burrs, the deformation of the aluminum pipe caused by high temperature generated when the burrs are scratched is also reduced, and the processing quality of the aluminum pipe is ensured. Because the existing deburring head is generally only arranged into an opening towards one end of an aluminum pipe, and is arranged into a sealing end at one side far away from the aluminum pipe because of being connected with the rotating shaft 4, part of burrs can stay at the sealing end and cannot be discharged in time, and the aluminum pipe is scratched or scratched to generate the condition of high temperature and aluminum pipe deformation, the burrs cut by the internal cutting edge 53 and the external cutting edge 64 at one side close to the disc 51 can be thrown out through the arrangement of the slag discharge groove 56 which is gradually enlarged from inside to outside, so that the condition of aluminum pipe deformation caused by high temperature generated by scratching or scratching of the aluminum pipe is ensured, and the quality of the aluminum pipe is ensured; meanwhile, as the slag discharge groove 56 is communicated with the outside, the flow of air in the gap between the inner cutting edges 53 or the gap between the outer cutting edges 64 can be accelerated, the heat exchange is accelerated, and the aluminum pipe is further prevented from being heated and deformed; the graphite tile can polish the end face of the aluminum pipe.
As an embodiment of the present invention, a guide groove 54 is provided on the outer circumference of the cutting column 52 between adjacent inner cutting edges 53, the rotation direction of the guide groove 54 is the same as that of the slag discharge groove 56, and the lower end of the guide groove 54 communicates with the inner side of the slag discharge groove 56; the guide groove 54 can not only generate cyclone when rotating along with the cutting column 52 to cool the inner cutting edge 53 and the inner side of the aluminum tube, so as to avoid the aluminum tube from being deformed by heating, but also can actively force the removed burrs to move downwards, thereby accelerating the discharge of the burrs. The guide groove 54 generates cyclone when rotating with the cutting column 52, accelerates the air flow of the gap between the inner cutting edges 53, cools the inner cutting edges 53 and the inner side of the aluminum pipe, avoids the aluminum pipe from being heated and deformed, and simultaneously actively forces the removed burrs to move downwards under the action of the spiral auger, thereby accelerating the discharge of the burrs.
As an embodiment of the invention, the inner side surface of the upper end of the inner cylinder 62 is provided with an annular boss, and the height of the annular boss is matched with that of the outer cutting edge 64; the annular boss can prevent burrs removed by the outer cutting edge 64 from being thrown out of the upper end of the inner barrel 62, and injury to people is avoided. Burrs cut by the outer cutting edges 64 of the inner cylinder 62 can be located in gaps between adjacent outer cutting edges 64, although most of the burrs can be thrown into the annular groove 63 through the communicating groove 65 or directly discharged through the slag discharge groove 56, a small part of the burrs can still be thrown out from the upper end of the inner cylinder 62 during high-speed rotation, people are easily injured, and therefore the probability that the burrs are thrown out from the upper end face is reduced through the arrangement of the annular boss, and the safety is improved.
As an embodiment of the present invention, a plurality of slag discharge holes 67 are uniformly distributed on the annular plate along the circumferential direction, and the slag discharge holes 67 are located above the outer side of the corresponding slag discharge groove 56. The part of burrs entering the annular groove 63 can be discharged through the slag discharge hole 67, the number of times for cleaning the annular groove 63 is reduced, the labor intensity is reduced, meanwhile, the burrs discharged through the slag discharge hole 67 can collide with the burrs thrown out of the slag discharge groove 56, the kinetic energy of the burrs thrown out of the slag discharge groove 56 is reduced, the maximum range of throwing out of the burrs is reduced, and the risk of hurting people is further reduced.
In one embodiment of the present invention, the upper end surface of the outer cylinder 61 is higher than the upper end surface of the inner cylinder 62, a plurality of arc-shaped baffles 66 are arranged on the inner wall of the outer cylinder 61 above the inner cylinder 62 at intervals along the circumferential direction, the rotation direction of the arc-shaped baffles 66 is the same as the rotation direction of the annular groove 63, and the arc-shaped baffles 66 gradually extend towards the inner cylinder 62 along the rotation direction. A blocking surface can be formed above the annular groove 63 and the inner cylinder 62 when the arc-shaped baffle 66 rotates, the rotating direction and the extending direction of the blocking surface can be selected to enable the blocked burrs to be pressed into the annular groove 63 again, the situation that the burrs are thrown out of the upper end to hurt people is avoided, meanwhile, downward moving air flow can be generated along with the rotation of the outer cylinder 61, the burrs are difficult to be thrown out of the upper end, the risk that the upper end throws out the burrs to hurt people is further reduced, and the safety is improved; in addition, the air flow moving downwards can provide a better cooling effect, the aluminum pipe is prevented from being heated and deformed, burr discharging can be accelerated better, and the phenomenon that the burrs are blocked and blocked is avoided.
When the deburring machine is used, the end part of an aluminum pipe is inserted into the inner cylinder 62 of the deburring head, so that the inner wall and the outer wall of the aluminum pipe are respectively removed from the inner cutting edge 53 and the outer cutting edge 64, then the aluminum pipe is clamped and fixed through the clamp, the motor 2 is started, the motor 2 drives the deburring head to rotate through the reduction box 3 and the rotating shaft 4, the inner cutting edge 53 and the outer cutting edge 64 are used for deburring on the inner wall and the outer wall of the end part of the aluminum pipe, and meanwhile, the inner wall and the outer wall of the end part of the aluminum pipe are processed, so; generally speaking, the number of burrs on the outer portion of the aluminum tube is relatively large, the scraped burrs are remained in gaps between the outer cutting edges 64 and can rotate along with the rotation of the outer cutting edges 64, so that the end faces of the aluminum tube subjected to secondary deburring are easily scraped for a second time, the aluminum tube is damaged, a large amount of heat is generated during scraping, the aluminum tube is deformed, and the service life of the aluminum tube is influenced, therefore, through the arrangement of the communicating groove 65, the burrs after the outer cutting edges 64 are cut off can be thrown into the annular groove 63 through centrifugal force, the risk of secondary deburring of the end faces of the aluminum tube and deformation of the aluminum tube is reduced, meanwhile, the burrs can be stored in the annular groove 63, and the situation that people are injured due to; because the existing deburring head is generally only arranged into an opening towards one end of an aluminum pipe, and is arranged into a sealing end at one side far away from the aluminum pipe because of being connected with the rotating shaft 4, part of burrs can stay at the sealing end and cannot be discharged in time, and the aluminum pipe is scratched or scratched to generate the condition of high temperature and aluminum pipe deformation, the burrs cut by the internal cutting edge 53 and the external cutting edge 64 at one side close to the disc 51 can be thrown out through the arrangement of the slag discharge groove 56 which is gradually enlarged from inside to outside, so that the condition of aluminum pipe deformation caused by high temperature generated by scratching or scratching of the aluminum pipe is ensured, and the quality of the aluminum pipe is ensured; meanwhile, as the slag discharge groove 56 is communicated with the outside, the flow of air in the gap between the inner cutting edges 53 or the gap between the outer cutting edges 64 can be accelerated, the heat exchange is accelerated, and the aluminum pipe is further prevented from being heated and deformed; the graphite tile can polish and polish the end face of the aluminum pipe; the guide groove 54 generates cyclone when rotating along with the cutting column 52, accelerates the air flow of the gap between the inner cutting edges 53, cools the inner cutting edges 53 and the inner side of the aluminum pipe, avoids the aluminum pipe from being heated and deformed, and simultaneously actively forces the removed burrs to move downwards under the action of a spiral auger, thereby accelerating the discharge of the burrs; burrs cut by the outer cutting edges 64 of the inner cylinder 62 can be present in gaps between adjacent outer cutting edges 64, although most of the burrs are thrown into the annular groove 63 through the communicating groove 65 or directly discharged through the slag discharge groove 56, a small part of the burrs are still thrown out from the upper end of the inner cylinder 62 during high-speed rotation, and people are easily injured, so that the probability of throwing the burrs out from the upper end face is reduced through the arrangement of the annular boss, and the safety is improved; part of burrs entering the annular groove 63 can be discharged through the slag discharge hole 67, the number of times for cleaning the annular groove 63 is reduced, the labor intensity is reduced, meanwhile, the burrs discharged through the slag discharge hole 67 can collide with the burrs thrown out of the slag discharge groove 56, the kinetic energy of the burrs thrown out of the slag discharge groove 56 is reduced, the maximum range of throwing out of the burrs is reduced, and the risk of hurting people is further reduced; a blocking surface can be formed above the annular groove 63 and the inner cylinder 62 when the arc-shaped baffle 66 rotates, the rotating direction and the extending direction of the blocking surface can be selected to enable the blocked burrs to be pressed into the annular groove 63 again, the situation that the burrs are thrown out of the upper end to hurt people is avoided, meanwhile, downward moving air flow can be generated along with the rotation of the outer cylinder 61, the burrs are difficult to be thrown out of the upper end, the risk that the upper end throws out the burrs to hurt people is further reduced, and the safety is improved; in addition, the air flow moving downwards can provide a better cooling effect, the aluminum pipe is prevented from being heated and deformed, burr discharging can be accelerated better, and the phenomenon that the burrs are blocked and blocked is avoided.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A manufacturing process of a U-shaped aluminum pipe is characterized in that: the method comprises the following steps:
s1: bending pretreatment: selecting an aluminum pipe according to requirements, clamping the aluminum pipe through a clamp, removing burrs inside and outside a port of the aluminum pipe by using a deburring device, polishing the end face of the aluminum pipe, and then placing the aluminum pipe on bending equipment;
s2: inserting a core rod: inserting a core rod into the aluminum pipe from one end of the aluminum pipe, wherein the end part of the insertion end of the core rod is flush with the starting point of the bending section of the aluminum pipe, and the outer diameter of the core rod is consistent with the inner diameter of the pipe body;
s3: bending the aluminum pipe: starting the bending equipment, extruding and bending the aluminum pipe by a bending die of the bending equipment, wherein in the bending process, the core rod is always pulled out of the aluminum pipe backwards along the tangential direction of the bending position of the bending section of the aluminum pipe, the pulling speed of the core rod is consistent with the bending speed of the bending die and keeps synchronous, and after the bending section of the aluminum pipe is formed, the core rod is pulled out of the aluminum pipe body to form a U-shaped aluminum pipe;
the deburring device comprises a base (1), a motor (2), a reduction gearbox (3), a rotating shaft (4) and a burr removing head, wherein the motor (2) is arranged on one side of the upper end of the base (1), the reduction gearbox (3) is arranged on the other side of the upper end of the base (1), the motor (2) is in transmission connection with the reduction gearbox (3), and the output end of the upper side of the reduction gearbox (3) is connected with the burr removing head through the rotating shaft (4); the burr head comprises a chassis (5) connected with the rotating shaft (4) and a sleeve (6) fixed on the chassis (5), the sleeve (6) comprises an outer cylinder (61) and an inner cylinder (62), a cavity between the outer cylinder (61) and the inner cylinder (62) forms an annular groove (63), a plurality of outer cutting edges (64) are uniformly distributed on the inner wall of the inner cylinder (62), and a through communicating groove (65) is formed in the inner cylinder (62) between the adjacent outer cutting edges (64); the lower end of the outer cylinder (61) and the lower end of the inner cylinder (62) are fixedly connected through an annular plate, and the annular plate is fixedly arranged on the chassis (5); the chassis (5) comprises a disc (51) connected with the rotating shaft (4), the disc (51) is provided with a cutting column (52) which extends into the inner cylinder (62) and is coaxially arranged with the inner cylinder, and the outer wall of the cutting column (52) is uniformly provided with a plurality of inner cutting edges (53);
a slag discharge groove (56) extending to the outer wall of the disc (51) and communicated with the external space is formed in the disc (51) at the periphery of the cutting column (52), the slag discharge groove (56) is arc-shaped, the width of the slag discharge groove is gradually increased from inside to outside, the disc (51) between the adjacent slag discharge grooves (56) forms an arc-shaped boss (55), and a graphite tile is arranged on the surface of the arc-shaped boss (55); the slag discharge groove (56) can timely discharge burrs removed by the inner cutting edge (53) and the outer cutting edge (64) by utilizing centrifugal force, so that the aluminum pipe is prevented from being scratched by the burrs, the deformation of the aluminum pipe caused by high temperature generated when the burrs are scratched is also reduced, and the processing quality of the aluminum pipe is ensured.
2. A process for manufacturing a U-shaped aluminum pipe according to claim 1, wherein: a guide groove (54) is formed in the periphery of the cutting column (52) between the adjacent inner cutting edges (53), the rotating direction of the guide groove (54) is the same as that of the slag discharge groove (56), and the lower end of the guide groove (54) is communicated with the inner side of the slag discharge groove (56); the guide groove (54) can generate cyclone when rotating along with the cutting column (52) to cool the inner cutting edge (53) and the inner side of the aluminum pipe, so that the aluminum pipe is prevented from being heated and deformed, and removed burrs can be forced to move downwards actively, and the discharge of the burrs is accelerated.
3. A process for manufacturing a U-shaped aluminum pipe according to claim 2, wherein: an annular boss is arranged on the inner side face of the upper end of the inner cylinder (62), and the height of the annular boss is matched with that of the outer cutting edge (64); the annular boss can prevent burrs removed by the outer cutting edge (64) from being thrown out of the upper end of the inner barrel (62), so that people are prevented from being injured.
4. A process for manufacturing a U-shaped aluminum pipe according to claim 3, wherein: a plurality of slag discharge holes (67) are uniformly distributed on the annular plate along the circumferential direction, and the slag discharge holes (67) are positioned above the outer side of the corresponding slag discharge groove (56).
5. A process for manufacturing a U-shaped aluminum pipe according to claim 4, wherein: the utility model discloses a novel outer tube (62) is characterized in that urceolus (61) up end is higher than inner tube (62) up end, is located and is provided with a plurality of cowl (66) along the circumferencial direction interval on urceolus (61) inner wall of inner tube (62) top, the turning of cowl (66) is the same with turning of ring channel (63), cowl (66) extend to inner tube (62) one side gradually along its turning.
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