CN116967362A - Copper pipe flaring device and method - Google Patents
Copper pipe flaring device and method Download PDFInfo
- Publication number
- CN116967362A CN116967362A CN202310857454.XA CN202310857454A CN116967362A CN 116967362 A CN116967362 A CN 116967362A CN 202310857454 A CN202310857454 A CN 202310857454A CN 116967362 A CN116967362 A CN 116967362A
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- China
- Prior art keywords
- clamping plate
- copper pipe
- clamping
- holes
- flaring
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 128
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 128
- 239000010949 copper Substances 0.000 title claims abstract description 128
- 238000000034 method Methods 0.000 title claims description 18
- 238000009792 diffusion process Methods 0.000 claims abstract description 54
- 241000375392 Tana Species 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D41/00—Application of procedures in order to alter the diameter of tube ends
- B21D41/02—Enlarging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supports For Pipes And Cables (AREA)
Abstract
The invention discloses a copper pipe flaring device, which comprises a clamping mechanism and a diffusion mechanism, wherein the clamping mechanism is used for clamping a copper pipe to be flared, and the diffusion mechanism is used for flaring the end surface of the copper pipe; the clamping mechanism comprises a first clamping plate and a second clamping plate, wherein a plurality of half-arc fixing holes are formed in the end face of the first clamping plate, a plurality of half-arc fixing holes are symmetrically formed in the end face of the second clamping plate, and the half-arc fixing holes in the first clamping plate are respectively aligned with the half-arc fixing holes in the second clamping plate to form a plurality of complete fixing holes; the diffusion mechanism comprises a support frame, a rotary screw and a diffusion head, wherein the rotary screw is arranged in the middle of the support frame, two ends of the support frame are connected with the side faces of the clamping mechanism, one end of the rotary screw is provided with the diffusion head, the rotary screw is in threaded connection with the support frame, and the rotary screw drives the diffusion head to move to expand the end face of the copper pipe. According to the invention, the clamping mechanism is arranged, so that the copper pipe does not laterally move when being flared, and the quality of the flared copper pipe is improved.
Description
Technical Field
The invention belongs to the technical field of ship construction, and particularly relates to a copper pipe flaring device and method.
Background
The method is characterized in that the air conditioner and refrigeration system pipe systems are installed in the ship construction without opening, the pipe systems for conveying the refrigerant in the air conditioner and refrigeration system are mostly copper pipes, and the copper pipes are not opened in the flaring processing process in the installation process.
The existing clamping mechanism of the pipe flaring device is not provided with a positioning mechanism, sliding friction can be generated in the clamping process, the outer surface of a copper pipe is easy to damage, flaring can only be carried out on a flare opening at a certain angle, the structure is complex, and the manufacturing cost is high.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a copper pipe flaring device and method.
In order to achieve the above object, the present invention provides the following technical solutions:
the copper pipe flaring device comprises a clamping mechanism and a diffusion mechanism, wherein the clamping mechanism is used for clamping a copper pipe to be flared, and the diffusion mechanism is used for flaring the end surface of the copper pipe; the clamping mechanism comprises a first clamping plate and a second clamping plate, a plurality of half-arc fixing holes are formed in the end face of the first clamping plate, a plurality of half-arc fixing holes are symmetrically formed in the end face of the second clamping plate, and the half-arc fixing holes in the first clamping plate are respectively aligned with the half-arc fixing holes in the second clamping plate to form a plurality of complete fixing holes which are used for fixing copper pipes; the diffusion mechanism comprises a support frame, a rotary screw and a diffusion head, wherein the rotary screw is arranged in the middle of the support frame, two ends of the support frame are connected with the side faces of the clamping mechanism, one end of the rotary screw is provided with the diffusion head, the rotary screw is in threaded connection with the support frame, and the rotary screw drives the diffusion head to move to expand the end face of the copper pipe.
Above-mentioned first splint wholly is the cuboid, first splint both sides are provided with the location pinhole respectively, the location pinhole outside of first splint one end is provided with the screw hole, the location pinhole outside of the first splint other end is provided with the through-hole, location pinhole, screw hole and the through-hole parallel arrangement on the first splint, the axial direction of the location pinhole on the first splint sets up perpendicularly with the axial direction of the half arc fixed orifices on the first splint.
The whole cuboid-shaped second clamping plate is provided with positioning pin holes on two sides of the second clamping plate respectively, threaded holes are formed in the outer side of the positioning pin holes at one end of the second clamping plate, through holes are formed in the outer side of the positioning pin holes at the other end of the second clamping plate, the positioning pin holes, the threaded holes and the through holes on the second clamping plate are arranged in parallel, the axial direction of the positioning pin holes on the second clamping plate is perpendicular to the axial direction of the half-arc fixing holes on the second clamping plate, and when the first clamping plate and the second clamping plate are installed, the threaded holes on the first clamping plate are aligned with the through holes on the second clamping plate; the threaded holes on the first clamping plate and the through holes on the second clamping plate are fixed through locking screws.
Above-mentioned locking screw one end is provided with the spanner hole and is used for installing the spanner pole, the locking screw other end is provided with the screw thread, the locking screw stretches into from the through-hole, the screw thread screw in screw hole of locking screw is fixed first splint and second splint.
The apertures of a plurality of complete fixing holes formed by the first clamping plate and the second clamping plate are different, the sum of the widths of the first clamping plate and the second clamping plate is 2-2.2 times of the maximum aperture in the complete fixing holes, and the thicknesses of the first clamping plate and the second clamping plate are 1.4-1.5 times of the maximum aperture in the complete fixing holes; the distance between the threaded hole and the adjacent complete fixed hole is 2 times of the aperture of the largest complete fixed hole.
Horn mouths are respectively arranged at two ends of the integral fixing hole, the inclination angles of the horn mouths arranged at two ends of the integral fixing hole are different, and the distance between adjacent horn mouths is 10mm larger than the sum of the radiuses of the adjacent horn mouths; the distance between the positioning pin holes at the two ends of the first clamping plate and the second clamping plate and the adjacent bell mouth is 10mm more than the sum of the radius of the positioning pin holes and the radius of the adjacent bell mouth.
Above-mentioned support frame wholly is the U-shaped, the support frame middle part is provided with circular boss, the inboard central symmetry of support at support frame both ends is provided with the centre gripping groove, and circular boss middle part is provided with runs through the screw hole, rotatory screw rod and runs through screw hole threaded connection, rotatory screw rod side is provided with the screw thread, rotatory screw rod top is provided with the spanner hole, installs the spanner pole in the spanner hole, and rotatory spanner pole drives rotatory screw rod and removes on circular boss, rotatory screw rod bottom installation pressure expansion head, pressure expansion head upper portion is cylindrical, pressure expansion head lower part is conical, pressure expansion head upper portion is provided with the square groove, and the square groove is connected with rotatory screw rod bottom, pressure expansion head upper portion side is provided with the fixed slot, when rotatory screw rod bottom inserts the square groove, with locking screw in fixed slot with rotatory screw rod and pressure expansion head fixed connection.
The distance between the brackets at the two ends of the support frame is 2mm greater than the sum of the widths of the first clamping plate and the second clamping plate, and the distance between the clamping grooves is the same as the distance between the brackets at the two ends of the support frame.
A flaring method of a copper pipe specifically comprises the following steps:
firstly, preparing a copper pipe flaring device, wherein the device comprises a clamping mechanism and a diffusion mechanism, the clamping mechanism is used for clamping a copper pipe to be flared, and the diffusion mechanism is used for flaring the end face of the copper pipe; the clamping mechanism comprises a first clamping plate and a second clamping plate, a plurality of half-arc fixing holes are formed in the end face of the first clamping plate, a plurality of half-arc fixing holes are symmetrically formed in the end face of the second clamping plate, and the half-arc fixing holes in the first clamping plate are respectively aligned with the half-arc fixing holes in the second clamping plate to form a plurality of complete fixing holes which are used for fixing copper pipes; the diffusion mechanism comprises a support frame, a rotary screw rod and a diffusion head, wherein the rotary screw rod is arranged in the middle of the support frame, two ends of the support frame are connected with the side surfaces of the clamping mechanism, one end of the rotary screw rod is provided with the diffusion head, the rotary screw rod is in threaded connection with the support frame, and the rotary screw rod drives the diffusion head to move to expand the end surface of the copper pipe;
the second step, the copper pipe is fixed in a complete fixing hole with corresponding diameter according to the aperture of the copper pipe with the flaring, meanwhile, locating pins are arranged in locating pin holes at two ends of the first clamping plate and the second clamping plate, a locking screw rod penetrates through the through hole and fixedly connects the first clamping plate and the second clamping plate through a threaded hole, and the locking screw rod is screwed in through a spanner rod at the top end;
thirdly, after the copper pipe is fixed, clamping grooves of a supporting frame in the diffusion mechanism are respectively clamped at two sides of the first clamping plate and the second clamping plate, and meanwhile, the center of a diffusion head at the lower end of the rotary screw rod is aligned with the center of the aperture of the copper pipe;
fourthly, the rotary screw rod moves towards the pipe orifice of the copper pipe under the drive of the spanner rod, and the expansion head expands the bell mouth of the copper pipe; after the diffusion of the copper pipe is completed, the diffusion mechanism and the clamping mechanism are removed, the copper pipe is removed, and burrs are repaired and cleaned at the flaring of the copper pipe; and (5) completing flaring of the copper pipe.
When the copper pipe is fixed in the complete fixing hole, the height H of the copper pipe port extending out of the end faces of the first clamping plate and the second clamping plate is determined by the following formula:
H＝E(1/sina-1/tana)，
E＝(D-D 0 )/2，
wherein D is the outer diameter of the copper pipe, D 0 For the diameter size of the horn mouth corresponding to the complete fixing hole, E is the distance between one side of the copper pipe and one side of the adjacent horn mouth, and a is the included angle between the horn mouth and the vertical direction.
Based on the technical scheme, the copper pipe flaring device and the copper pipe flaring method have the following technical advantages through practical application:
1. according to the copper pipe flaring device, the clamping mechanism is arranged, so that lateral movement does not occur when the copper pipe is flared, the quality of the flared copper pipe is improved, and the damage of the flared copper pipe to the side surface of the copper pipe is reduced.
2. According to the copper pipe flaring device, the fixing holes with different apertures and the bellmouth with different inclinations are arranged on the two sides of the first clamping plate and the second clamping plate, so that the application range of flaring of copper pipes with different apertures is improved, meanwhile, the clamping mechanism is simple in structure, convenient to carry and detach, and production cost is reduced.
3. According to the copper pipe flaring device, the positioning pin holes are formed in the first clamping plate and the second clamping plate, and the first clamping plate and the second clamping plate are positioned through the positioning pins, so that the first clamping plate and the second clamping plate do not laterally move in the clamping process, and damage to the copper pipe caused by displacement of the clamping plates I and II in the clamping process is avoided.
Drawings
Fig. 1 is a front view of a copper tube flaring device in a copper tube flaring device according to the present invention.
Fig. 2 is a top view of a copper tube flaring device in accordance with the present invention.
Fig. 3 is a schematic view of a clamping mechanism in a copper tube flaring device of the present invention.
Fig. 4 is a schematic view of a diffusion mechanism in a copper tube flaring device of the present invention.
Figure 5 is a side cross-sectional view of a clamping mechanism in a copper tube flaring device of the present invention.
Fig. 6 is a schematic view of the extension of copper tubing in a copper tubing flaring method of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention is described below by way of specific examples shown in the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the invention. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present invention.
As shown in fig. 1-6, the invention belongs to a copper pipe flaring device, which comprises a clamping mechanism and a diffusion mechanism, wherein the clamping mechanism is used for clamping a copper pipe 71 to be flared, and the diffusion mechanism is used for flaring the end surface of the copper pipe 71; the clamping mechanism comprises a first clamping plate 1 and a second clamping plate 2, wherein a plurality of half-arc fixing holes 14 are formed in the end face of the first clamping plate 1, a plurality of half-arc fixing holes 14 are symmetrically formed in the end face of the second clamping plate 2, the half-arc fixing holes 14 on the first clamping plate 1 are respectively aligned with the half-arc fixing holes 14 on the second clamping plate 2 to form a plurality of complete fixing holes 14, and the fixing holes 14 are used for fixing copper pipes 71; the diffusion mechanism comprises a support frame 6, a rotary screw rod 9 and a diffusion head 7, wherein the rotary screw rod 9 is arranged in the middle of the support frame 6, two ends of the support frame 6 are connected with the side face of the clamping mechanism, one end of the rotary screw rod 9 is provided with the diffusion head 7, the rotary screw rod 9 is in threaded connection with the support frame 6, and the rotary screw rod 9 drives the diffusion head 7 to move to expand the end face of the copper pipe 71; the copper pipe 71 does not laterally move when being flared through the arrangement of the clamping mechanism, the quality of the flared copper pipe 71 is improved, and the damage of the flared copper pipe 71 to the side surface of the copper pipe 71 is reduced.
As shown in fig. 3 and 5, the whole first clamping plate 1 is cuboid, positioning pin holes 11 are respectively formed in two sides of the first clamping plate 1, threaded holes 13 are formed in the outer side of the positioning pin holes 11 at one end of the first clamping plate 1, through holes 12 are formed in the outer side of the positioning pin holes 11 at the other end of the first clamping plate 1, the positioning pin holes 11, the threaded holes 13 and the through holes 12 on the first clamping plate 1 are arranged in parallel, and the axial direction of the positioning pin holes 11 on the first clamping plate 1 is perpendicular to the axial direction of the half-arc fixing holes 14 on the first clamping plate 1; the tolerance of the inner diameter of the positioning pin hole 11 is-0.03-0.08 mm; the tolerance of the inner diameter of the through hole 12 is-0.5-0.8 mm.
The second clamping plate 2 is in a cuboid shape as a whole, positioning pin holes 11 are respectively formed in two sides of the second clamping plate 2, threaded holes 13 are formed in the outer side of the positioning pin holes 11 at one end of the second clamping plate 2, through holes 12 are formed in the outer side of the positioning pin holes 11 at the other end of the second clamping plate 2, the positioning pin holes 11, the threaded holes 13 and the through holes 12 on the second clamping plate 2 are arranged in parallel, the axial direction of the positioning pin holes 11 on the second clamping plate 2 is perpendicular to the axial direction of the half-arc fixing holes 14 on the second clamping plate 2, and when the first clamping plate 1 and the second clamping plate 2 are installed, the threaded holes 13 on the first clamping plate 1 are aligned with the through holes 12 on the second clamping plate 2; the threaded hole 13 on the first clamping plate 1 and the through hole 12 on the second clamping plate 2 are fixed through the locking screw 4; the external diameter of the locating pin 3 is the size of the internal diameter of the locating pin hole, the tolerance is-0.03-0.08 mm, and the locating pin hole 11 is formed in the first clamping plate 1 and the second clamping plate 2, and the locating pin 3 is used for locating the first clamping plate 1 and the second clamping plate 2, so that the first clamping plate 1 and the second clamping plate 2 do not move sideways in the clamping process, and the copper pipe 71 is prevented from being damaged due to displacement in the clamping plates I and II in the clamping process.
One end of the locking screw 4 is provided with a spanner hole 10 for installing a spanner rod 5, the outer diameter of the spanner rod 5 is the inner diameter size of the spanner hole 10, and the tolerance is-1.5 to-1.4 mm; the other end of the locking screw 4 is provided with threads, the locking screw 4 extends into the through hole 12, and the threads of the locking screw 4 are screwed into the threaded holes 13 to fix the first clamping plate 1 and the second clamping plate 2; the locking screw 4 prevents the first clamping plate 1 and the second clamping plate 2 from sliding in the width direction when the copper pipe 71 is flared, and improves the flaring effect of the copper pipe 71; the aperture of the through hole 12 is 1-1.2mm larger than that of the threaded hole 13, so that the locking screw 4 can conveniently penetrate into the through hole 12, and meanwhile, after the locking screw 4 is in threaded connection with the threaded hole 13, the first clamping plate 1 and the second clamping plate 2 are prevented from laterally moving.
The diameters of a plurality of complete fixing holes 14 formed by the first clamping plate 1 and the second clamping plate 2 are different, the sum of the widths of the first clamping plate 1 and the second clamping plate 2 is 2-2.2 times of the maximum diameter of the complete fixing holes 14, and the thicknesses of the first clamping plate 1 and the second clamping plate 2 are 1.4-1.5 times of the maximum diameter of the complete fixing holes 14; the distance between the threaded hole 13 and the adjacent complete fixing hole 14 is 2 times of the aperture of the maximum complete fixing hole 14.
Horn mouths 15 are respectively arranged at two ends of the complete fixing hole 14, the inclination angles of the horn mouths 15 arranged at two ends of the complete fixing hole 14 are different, and the distance between the adjacent horn mouths 15 is 10mm larger than the sum of the radiuses of the adjacent horn mouths 15; the distance between the positioning pin holes 11 at the two ends of the first clamping plate 1 and the second clamping plate 2 and the adjacent flare 15 is 10mm more than the sum of the radius of the positioning pin holes 11 and the radius of the adjacent flare 15; through being provided with the fixed orifices 14 of different apertures and the horn mouth 15 of different inclination in first centre gripping and second splint 2 both sides, improved the application scope to the flaring of different aperture copper pipe 71, fixture simple structure simultaneously, portable dismantles, has reduced manufacturing cost.
As shown in fig. 4, the whole U-shaped that is of support frame 6, support frame 6 middle part is provided with circular boss, the inboard central symmetry of support frame 6 both ends is provided with the centre gripping groove, and circular boss middle part is provided with the threaded hole that runs through, rotatory screw rod 9 and the threaded connection that runs through the threaded hole, rotatory screw rod 9 side is provided with the screw thread, rotatory screw rod 9 top is provided with spanner hole 10, installs spanner pole 5 in the spanner hole 10, and spanner pole 5 external diameter is spanner hole 10 internal diameter size, and the tolerance is-1.5 to-1.4 mm, rotatory spanner pole 5 drives rotatory screw rod 9 and removes on circular boss, rotatory screw rod 9 bottom installation pressure expansion head 7, pressure expansion head 7 upper portion is cylindric, pressure expansion head 7 lower part is conical, pressure expansion head 7 upper portion is provided with the square groove, and the square groove is connected with rotatory screw rod 9 bottom, pressure expansion head 7 upper portion side is provided with the fixed slot, when rotatory screw rod 9 bottom inserts the square groove, with locking screw into fixed slot and with pressure expansion head 7 fixed connection.
The distance between the brackets at the two ends of the supporting frame 6 is 2mm larger than the sum of the widths of the first clamping plate 1 and the second clamping plate 2, and the distance between the clamping grooves is the same as the distance between the brackets at the two ends of the supporting frame 6.
As shown in fig. 1 and 2, a copper pipe flaring method specifically comprises the following steps:
firstly, preparing a copper pipe flaring device, wherein the device comprises a clamping mechanism and a diffusion mechanism, the clamping mechanism is used for clamping a copper pipe 71 to be flared, and the diffusion mechanism is used for flaring the end face of the copper pipe 71; the clamping mechanism comprises a first clamping plate 1 and a second clamping plate 2, wherein a plurality of half-arc fixing holes 14 are formed in the end face of the first clamping plate 1, a plurality of half-arc fixing holes 14 are symmetrically formed in the end face of the second clamping plate 2, the half-arc fixing holes 14 on the first clamping plate 1 are respectively aligned with the half-arc fixing holes 14 on the second clamping plate 2 to form a plurality of complete fixing holes 14, and the fixing holes 14 are used for fixing copper pipes 71; the diffusion mechanism comprises a support frame 6, a rotary screw rod 9 and a diffusion head 7, wherein the rotary screw rod 9 is arranged in the middle of the support frame 6, two ends of the support frame 6 are connected with the side face of the clamping mechanism, one end of the rotary screw rod 9 is provided with the diffusion head 7, the rotary screw rod 9 is in threaded connection with the support frame 6, and the rotary screw rod 9 drives the diffusion head 7 to move to expand the end face of the copper pipe 71;
secondly, fixing the copper tube 71 in a complete fixing hole 14 with corresponding diameter according to the aperture of the copper tube 71 with the flaring, simultaneously installing locating pins 3 in locating pin holes 11 at two ends of the first clamping plate 1 and the second clamping plate 2, enabling a locking screw 4 to penetrate through the through holes 12 and fixedly connect the first clamping plate 1 with the second clamping plate 2 through threaded holes 13, and enabling the locking screw 4 to be screwed in through a spanner rod 5 at the top end of the locking screw 4;
thirdly, after the copper pipe 71 is fixed, clamping grooves of a supporting frame 6 in the diffusion mechanism are respectively clamped at two sides of a first clamping plate 1 and a second clamping plate 2, and simultaneously the center of a pressure expansion head 7 at the lower end of a rotary screw 9 is aligned with the aperture center of the copper pipe 71;
fourthly, the rotary screw 9 moves towards the pipe orifice of the copper pipe 71 under the drive of the spanner rod 5, and the expansion head 7 expands the bell mouth 15 of the copper pipe 71; after the copper pipe 71 is diffused, the diffusion mechanism and the clamping mechanism are disassembled, the copper pipe 71 is removed, and burrs are repaired and cleaned at the flaring of the copper pipe 71; the flaring of the copper tube 71 is completed.
As shown in fig. 6, when the copper tube 71 is fixed in the complete fixing hole 14, the height H of the end face of the copper tube 71 extending out of the first clamping plate 1 and the second clamping plate 2 is determined by the following formula:
H＝E(1/sina-1/tana)，
E＝(D-D 0 )/2，
wherein D is the outer diameter of the copper pipe 71, D 0 For the diameter dimension of the bell mouth 15 corresponding to the complete fixing hole 14, E is the distance between one side of the copper pipe 71 and one side of the adjacent bell mouth 15, and a is the included angle between the bell mouth 15 and the vertical direction.
When the spanner rod 5 on the locking screw 4 influences the installation of the supporting frame 6, after the spanner rod 5 on the locking screw 4 is dismantled, brackets on two sides of the supporting frame 6 in the diffusion mechanism are clamped on two sides of the first clamping plate 1 and the second clamping plate 2 to finish flaring of the copper pipe 71, and when the copper pipe 71 is flared, the port of the copper pipe 71 is smeared with refrigerating oil for lubrication; when the diffuser 7 is 2mm from the end face of the copper tube 71, the wrench rod 5 is retracted again by half a turn for each turn, and this operation is repeated to complete the flaring operation of the copper tube 71.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same; while the invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that; modifications may be made to the specific embodiments of the invention or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the invention, it is intended to cover the scope of the invention as claimed.
Claims (10)
1. The copper pipe flaring device is characterized by comprising a clamping mechanism and a diffusion mechanism, wherein the clamping mechanism is used for clamping a copper pipe to be flared, and the diffusion mechanism is used for flaring the end face of the copper pipe; the clamping mechanism comprises a first clamping plate and a second clamping plate, a plurality of half-arc fixing holes are formed in the end face of the first clamping plate, a plurality of half-arc fixing holes are symmetrically formed in the end face of the second clamping plate, and the half-arc fixing holes in the first clamping plate are respectively aligned with the half-arc fixing holes in the second clamping plate to form a plurality of complete fixing holes which are used for fixing copper pipes; the diffusion mechanism comprises a support frame, a rotary screw and a diffusion head, wherein the rotary screw is arranged in the middle of the support frame, two ends of the support frame are connected with the side faces of the clamping mechanism, one end of the rotary screw is provided with the diffusion head, the rotary screw is in threaded connection with the support frame, and the rotary screw drives the diffusion head to move to expand the end face of the copper pipe.
2. The copper pipe flaring device according to claim 1, wherein the whole cuboid shape of first splint, first splint both sides are provided with the location pinhole respectively, the location pinhole outside of first splint one end is provided with the screw hole, the location pinhole outside of first splint other end is provided with the through-hole, location pinhole, screw hole and the through-hole parallel arrangement on the first splint, the axial direction of location pinhole on the first splint sets up perpendicularly with the axial direction of the half arc fixed orifices on the first splint.
3. The copper pipe flaring device according to claim 1, wherein the whole second clamping plate is cuboid, positioning pin holes are respectively formed in two sides of the second clamping plate, threaded holes are formed in the outer side of one positioning pin hole of one end of the second clamping plate, through holes are formed in the outer side of the positioning pin hole of the other end of the second clamping plate, the positioning pin holes, the threaded holes and the through holes on the second clamping plate are arranged in parallel, the axial direction of the positioning pin holes on the second clamping plate is perpendicular to the axial direction of the half-arc fixing holes on the second clamping plate, and when the first clamping plate and the second clamping plate are installed, the threaded holes on the first clamping plate are aligned with the through holes on the second clamping plate; the threaded holes on the first clamping plate and the through holes on the second clamping plate are fixed through locking screws.
4. A copper pipe flaring device according to claim 3, wherein one end of the locking screw is provided with a spanner hole for installing a spanner rod, the other end of the locking screw is provided with threads, the locking screw extends into the through hole, and the threads of the locking screw are screwed into the threaded holes to fix the first clamping plate and the second clamping plate.
5. A copper pipe flaring device according to claim 3, wherein the apertures of a plurality of complete fixing holes formed by the first clamping plate and the second clamping plate are different, the sum of the widths of the first clamping plate and the second clamping plate is 2-2.2 times of the maximum aperture in the complete fixing holes, and the thicknesses of the first clamping plate and the second clamping plate are 1.4-1.5 times of the maximum aperture in the complete fixing holes; the distance between the threaded hole and the adjacent complete fixed hole is 2 times of the aperture of the largest complete fixed hole.
6. A copper pipe flaring device according to claim 3, wherein two ends of the complete fixing hole are respectively provided with a flare, the dip angles of the flare arranged at the two ends of the complete fixing hole are different, and the distance between adjacent flare is 10mm larger than the sum of the radii of the adjacent flare; the distance between the positioning pin holes at the two ends of the first clamping plate and the second clamping plate and the adjacent bell mouth is 10mm more than the sum of the radius of the positioning pin holes and the radius of the adjacent bell mouth.
7. The copper pipe flaring device of claim 1, wherein the supporting frame is integrally U-shaped, a circular boss is arranged in the middle of the supporting frame, clamping grooves are symmetrically arranged in the centers of the inner sides of the supporting frames at two ends of the supporting frame, through threaded holes are formed in the middle of the circular boss, a rotary screw is in threaded connection with the through threaded holes, threads are formed in the side surfaces of the rotary screw, a spanner hole is formed in the top end of the rotary screw, a spanner rod is installed in the spanner hole, the rotary spanner rod drives the rotary screw to move on the circular boss, a flaring head is installed at the bottom end of the rotary screw, the upper portion of the flaring head is cylindrical, the lower portion of the flaring head is conical, a square groove is formed in the upper portion of the flaring head and is connected with the bottom end of the rotary screw, and a fixing groove is formed in the side surface of the upper portion of the flaring head, and when the bottom end of the rotary screw is inserted into the square groove, a locking screw is screwed into the fixing groove to fixedly connect the rotary screw with the flaring head.
8. A copper tube flaring device according to claim 7, wherein the distance between the brackets at the ends of the support frame is greater than the sum of the widths of the first clamping plate and the second clamping plate by 2mm, and the distance between the clamping grooves is the same as the distance between the brackets at the ends of the support frame.
9. The flaring method of the copper pipe is characterized by comprising the following steps of:
firstly, preparing a copper pipe flaring device, wherein the device comprises a clamping mechanism and a diffusion mechanism, the clamping mechanism is used for clamping a copper pipe to be flared, and the diffusion mechanism is used for flaring the end face of the copper pipe; the clamping mechanism comprises a first clamping plate and a second clamping plate, a plurality of half-arc fixing holes are formed in the end face of the first clamping plate, a plurality of half-arc fixing holes are symmetrically formed in the end face of the second clamping plate, and the half-arc fixing holes in the first clamping plate are respectively aligned with the half-arc fixing holes in the second clamping plate to form a plurality of complete fixing holes which are used for fixing copper pipes; the diffusion mechanism comprises a support frame, a rotary screw rod and a diffusion head, wherein the rotary screw rod is arranged in the middle of the support frame, two ends of the support frame are connected with the side surfaces of the clamping mechanism, one end of the rotary screw rod is provided with the diffusion head, the rotary screw rod is in threaded connection with the support frame, and the rotary screw rod drives the diffusion head to move to expand the end surface of the copper pipe;
the second step, the copper pipe is fixed in a complete fixing hole with corresponding diameter according to the aperture of the copper pipe with the flaring, meanwhile, locating pins are arranged in locating pin holes at two ends of the first clamping plate and the second clamping plate, a locking screw rod penetrates through the through hole and fixedly connects the first clamping plate and the second clamping plate through a threaded hole, and the locking screw rod is screwed in through a spanner rod at the top end;
thirdly, after the copper pipe is fixed, clamping grooves of a supporting frame in the diffusion mechanism are respectively clamped at two sides of the first clamping plate and the second clamping plate, and meanwhile, the center of a diffusion head at the lower end of the rotary screw rod is aligned with the center of the aperture of the copper pipe;
fourthly, the rotary screw rod moves towards the pipe orifice of the copper pipe under the drive of the spanner rod, and the expansion head expands the bell mouth of the copper pipe; after the diffusion of the copper pipe is completed, the diffusion mechanism and the clamping mechanism are removed, the copper pipe is removed, and burrs are repaired and cleaned at the flaring of the copper pipe; and (5) completing flaring of the copper pipe.
10. A method of flaring a copper tube according to claim 9, wherein the height H of the copper tube port extending beyond the end surfaces of the first clamping plate and the second clamping plate when the copper tube is secured within the complete securement hole is determined by the following equation:
H＝E(1/sina-1/tana)，
E＝(D-D 0 )/2，
wherein D is the outer diameter of the copper pipe, D 0 For the diameter size of the horn mouth corresponding to the complete fixing hole, E is the distance between one side of the copper pipe and one side of the adjacent horn mouth, and a is the included angle between the horn mouth and the vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202310857454.XA CN116967362A (en) | 2023-07-13 | 2023-07-13 | Copper pipe flaring device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310857454.XA CN116967362A (en) | 2023-07-13 | 2023-07-13 | Copper pipe flaring device and method |
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| CN116967362A true CN116967362A (en) | 2023-10-31 |
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| CN202310857454.XA Pending CN116967362A (en) | 2023-07-13 | 2023-07-13 | Copper pipe flaring device and method |
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