CN109772977B - Winding processing method for metal fin of heating pipe - Google Patents
Winding processing method for metal fin of heating pipe Download PDFInfo
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- CN109772977B CN109772977B CN201910225478.7A CN201910225478A CN109772977B CN 109772977 B CN109772977 B CN 109772977B CN 201910225478 A CN201910225478 A CN 201910225478A CN 109772977 B CN109772977 B CN 109772977B
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- heating pipe
- chuck
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- 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
- B21D21/00—Combined processes according to methods covered by groups B21D1/00 - B21D19/00
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- 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
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/06—Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form
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- 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
- B21D7/00—Bending rods, profiles, or tubes
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- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
- Resistance Heating (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The invention discloses a winding processing method of a heating pipe metal fin, which comprises the following steps of (1) fixing one end of a straight heating pipe at the center of a chuck, and fixing the other end of the straight heating pipe in a supporting seat of the heating pipe in a horizontally extending and rotatable manner; (2) fixing one end of a metal band on the end of the heating pipe close to the chuck, and then starting a motor to drive the chuck to rotate so that the metal band is spirally and spirally connected on the heating pipe along with the rotation of the heating pipe to form a metal fin; the metal band is extruded and deformed before being screwed on the heating pipe, so that one side of the metal band, which is connected with the heating pipe, is bent, and the bent side edge part is attached and pressed on the heating pipe. The invention has the advantages of convenient manufacture, good safety, low preparation cost, good product quality, high heat conductivity and the like.
Description
Technical Field
The invention relates to the technical field of steel pipe fin processing, in particular to a winding processing method of a heating pipe metal fin.
Background
In many electric heating devices, it is necessary to use a straight finned tube as a core member for heat exchange. The fin straight pipe comprises an internal heating pipe (generally a straight steel pipe) and metal fins wound and fixed on the steel pipe, when the fin straight pipe is used, a heat flow medium passes through the steel pipe, and heat is radiated out through the metal fins to realize heat exchange.
The fin straight tube preparation method generally adopts a single steel tube and a metal belt, and then the metal belt is vertically wound and fixed on the steel tube to prepare the fin. One of the existing fin straight tubes is to prepare a spring-shaped metal band in a superposed ring shape, then penetrate a steel tube into an inner ring of the spring-shaped metal band, stretch and screw the spring-shaped metal band to reduce the inner ring of the spring-shaped metal band and attach the spring-shaped metal band to the steel tube, and the processing method has the defects of poor attachment and easy looseness; the defects of inconvenient processing and poor safety are overcome, and the problem of uneven thread pitch of the fins is easily caused.
In the prior art, a processing mode of winding and welding and fixing by processing equipment is adopted. For example, CN107855647A discloses a laser welding forming process for straight fin tubes, which comprises the following steps: (1) fixing one end of a straight steel pipe in the center of a chuck, and clamping the other end of the straight steel pipe between a pair of pinch rollers; (2) a steel strip coil is arranged above a straight steel pipe between a chuck and a pinch roll, the steel strip coil is driven by a servo motor to release a steel strip downwards, a centering wheel is arranged close to the side of the straight steel pipe, a deep groove is formed in the circumferential direction of the centering wheel, the width of the deep groove is equal to the thickness of the steel strip, one side of the steel strip is embedded into the deep groove, and the other side of the steel strip is in contact with the surface of the straight steel pipe; (3) the steel strip is guided to the straight steel tube at a constant speed under the drive of the servo motor, and when the steel strip is wound on the straight steel tube, the contact part of the steel strip and the straight steel tube is fixed through laser welding. For example, CN1278812C discloses a method for welding heat dissipation fins for a heat exchanger, which is characterized in that an end portion of a stainless steel band is vertically welded on a wall of a steel tube, the steel tube rotates at a constant speed, a tension pre-tightening force is applied to the stainless steel band, the steel band is vertically and spirally wound on the steel tube under the traction of the rotating steel tube, during winding, a tungsten electrode of an argon arc welding gun is aligned to a horizontal tangent point of the stainless steel band and the steel tube, and during welding, current is output to a stable arc, so as to weld the root portion of the heat dissipation fins.
According to the two existing fin straight tube preparation methods, the steel tube is driven to rotate by means of a machine tool, the steel belt is forcibly wrapped on the steel tube in the vertical direction, and then the steel belt is fixed in a welding mode. In the mode, the steel belt is forcibly wound, the stress of equipment is larger, the steel belt is easy to crack, the safety is poorer, meanwhile, the welding cost is higher, gaps are easy to appear on welding seams, and the heat conduction performance of the prepared product is poorer.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: how to provide a winding processing method of a heating pipe metal fin, which has the advantages of convenient manufacture, good safety, low preparation cost, good product quality and high product heat conductivity.
In order to solve the technical problems, the invention adopts the following technical scheme:
a winding processing method of a heating pipe metal fin comprises the following steps of (1) fixing one end of a straight heating pipe at the center of a chuck, and fixing the other end of the straight heating pipe to a heating pipe supporting seat in a horizontally extending and rotatable mode; (2) fixing one end of a metal band on the end of the heating pipe close to the chuck, and then starting a motor to drive the chuck to rotate so that the metal band is spirally and spirally connected on the heating pipe along with the rotation of the heating pipe to form a metal fin; the metal band is extruded and deformed before being screwed on the heating pipe, so that one side of the metal band, which is connected with the heating pipe, is bent, and the bent side edge part is attached and pressed on the heating pipe.
Therefore, welding is not needed, the process is simple, the metal belt is attached to the heating pipe after being bent, the deformation difficulty of metal belt winding is reduced, and the heat conduction performance of the manufactured fin is improved.
The method is realized by adopting the following heating pipe fin winding processing equipment, the heating pipe fin winding processing equipment comprises a frame, one end of the frame is provided with a vertically arranged chuck, the chuck is in transmission connection with a motor fixed on the frame, the other end of the frame is provided with a heating pipe supporting seat over against the chuck, a heating pipe mounting tool capable of vertically rotating is arranged on the heating pipe supporting seat over against the chuck, so that a horizontal heating pipe installation station is formed between the chuck and the heating pipe installation tool and the rotatable clamping and positioning of the heating pipe are realized, the device is characterized by further comprising an extrusion clamp, the extrusion clamp is arranged along the length direction of the positioned heating pipe in a follow-up mode, the extrusion clamp is provided with a forming part located on one side of the circumferential surface of the positioned heating pipe, and the forming part is used for bending and deforming one side of a metal strip and winding the bending and deforming side of the metal strip on the surface of the positioned heating pipe.
When this equipment uses, install the heating pipe on heating pipe installation station earlier, after passing extrusion fixture's shaping portion with strap one end along heating pipe outer peripheral face edgewise again, the one end tip of fixed winding at the heating pipe, then the motor drives the chuck and rotates and drive the heating pipe rotatory, the feeding of pulling strap from extrusion fixture's shaping portion, the strap gets into behind the extrusion fixture shaping portion, the inboard that is close to the heating pipe is bent by shaping portion and is out of shape and the extrusion laminating winding of forcing is on the heating pipe surface, the strap outside forms the fin upright in the heating pipe surface, along with the rotation of heating pipe, the reaction force that produces when extrusion fixture extrudees the strap, can drive extrusion fixture and slide towards the heating pipe other end, make the heating pipe twine on the heating pipe from becoming pitch.
Like this, when this equipment used, can rely on extrusion anchor clamps to bend earlier the strap inboard and warp the back and make its extrusion laminating winding on the heating pipe again, like this, firstly greatly improved the area of contact of strap and heating pipe circumferential surface, made its laminating closely reliable, need not to adopt the welding again and can fix firmly, simplified the process and greatly saved the cost. And secondly, the inner side of the metal belt is bent and then wound on the circumferential surface of the heating pipe, the outer edge position of the metal belt is basically not subjected to or rarely subjected to the deformation force of forced stretching when the metal belt is wound, the deformation difficulty of the metal belt winding is greatly reduced, the outer side deformation tension of the metal belt is small, the metal belt is not easy to crack, the safety is higher, and the appearance quality of the prepared fin is better. And thirdly, after the contact area between the circumferential surfaces of the metal belt and the heating pipe is increased, the heat conduction effect from the heating pipe to the metal belt is also greatly improved, the heat conduction performance of the prepared fin is greatly improved, and the product performance quality is improved.
Furthermore, the heating pipe installation tool comprises a heating pipe installation hole positioned at the upper part of the heating pipe supporting seat, the heating pipe installation hole is arranged right opposite to the center of the chuck, and the heating pipe installation hole is used for enabling a heating pipe to penetrate through to realize installation; the lower end of the heating pipe supporting seat is installed on the rack through a supporting seat translation matching structure, and the supporting seat translation matching structure can drive the heating pipe supporting seat to freely translate along the length direction of the heating pipe after positioning.
Therefore, by adopting a simple heating pipe mounting hole mode, the rotatable clamping and positioning of the heating pipe can be realized only by penetrating the end part of the heating pipe through the heating pipe mounting hole, the structure is simple, and the clamping is convenient, fast and reliable. Meanwhile, the heating pipe supporting seat can freely translate along the length direction of the positioned heating pipe, so that the heating pipe supporting seat can follow the extrusion clamp to follow up during working. When making the fin winding like this, the winding position keeps the position that is closer to the heating pipe supporting seat always, avoids heating pipe both ends holding position to lead to the heating pipe rotatory time disturbance degree too big production to rock apart from the fin winding position, makes the winding effect receive to rock the influence and improves the winding degree of difficulty and reduce fin winding quality.
Furthermore, a bearing is arranged on the upper portion of the heating pipe supporting seat, which is opposite to the center of the chuck, and the inner ring of the bearing forms the heating pipe mounting hole.
Therefore, the heating pipe can be more conveniently and freely rotated on the heating pipe supporting seat.
Furthermore, the support seat translation matching structure comprises a support seat slide rail arranged on the rack and parallel to the lower part of the heating pipe installation station, and a translation matching part for clamping and matching the lower end of the heating pipe support seat and the support seat slide rail in a translation manner.
Therefore, the lower end of the heating pipe supporting seat is clamped and slidably matched with the supporting seat slide rail through the translation matching part, the heating pipe supporting seat can be arranged in a translation mode, the structure is simple, the installation and matching are convenient, and the movement is stable and reliable.
Furthermore, the supporting seat slide rail is obtained by a square pipe that sets up horizontally, and square pipe one side edge upwards sets up placed in the middle, and translation cooperation portion is including setting up two jack catchs in square pipe both sides, and the inboard that jack catch and square pipe are adjacent is the L shape that matches with square pipe lateral surface appearance.
Therefore, the structure is simple, the realization is convenient, and the realization of the clamping fit of translational motion is facilitated.
Furthermore, the inner side of the clamping jaw is respectively provided with a roller along the upper side and the lower side of the L shape, and the rollers can be correspondingly matched on the upper inclined plane and the lower inclined plane on the two sides of the square tube in a rolling manner.
Like this, adopt four gyro wheels, it is spacing in order to keep the complex stability to control the chucking about convenient, and the gyro wheel realizes that the rolling fit is more steady reliable than sliding fit simultaneously.
Furthermore, the extrusion fixture comprises a supporting block, a heating pipe perforation hole which can be penetrated by the heating pipe and can rotate freely is arranged on the supporting block, the heating pipe is sleeved on the positioned heating pipe by the heating pipe perforation hole when in work, a vertical clamping block is also arranged on the lower part of one side of the supporting block facing the chuck side in parallel, the clamping block and the supporting block are relatively fixed, a feeding clamping groove for allowing the metal belt to pass through the feeding pipe along the vertical direction is formed between the clamping block and the supporting block, the length direction of the feeding clamping groove is arranged along the heating pipe which is vertical to the positioning, the upper end surface of the clamping block is horizontally arranged and forms the upper end surface of the feeding clamping groove, the upper end surface of the feeding clamping groove is arranged along the lower end edge of the heating pipe perforation hole, the distance from the bottom of the feeding clamping groove to the lower end edge of the heating pipe perforation, the shape of the groove for extrusion deformation extends from the position of a third quadrant of the front lower part of the heating pipe perforation along the feeding direction to the front lower part of the side surface of the feeding clamping groove, the width of the notch of the groove for extrusion deformation is gradually increased from the front lower position to the heating pipe perforation position, the depth of the groove for extrusion deformation is gradually increased from the front lower position to the heating pipe perforation position, and the section of the groove for extrusion deformation along the width direction is arc; the extrusion fixture is also provided with an anti-rotation mechanism for preventing the extrusion fixture from rotating.
Thus, when the extrusion clamp works, the metal belt is fed along the feeding clamping groove, the end of the metal belt is pre-wrapped and wound on the heating pipe, so that the heating pipe rotates to drive the metal belt to continuously feed and realize winding, the metal belt is fed from the feeding clamping groove and then revolved out from the upper part of the heating pipe along the half circle of the heating pipe, rotates downwards again and passes through the upper end position of the clamping block, the outer side of the metal belt is attached to the outer side of the clamping block in the downward rotating process and is forcibly twisted into an inclined state by the clamping block, and the outer side of the clamping block applies torsion towards the direction of the clamping block to the position where the outer side of the metal belt revolves out from the upper part of the heating pipe, so that after the action is applied to the metal belt, a counter-acting force which is pried towards the direction away from the clamping block is generated to the lower position of the inner side of the, the strap inboard can enter into the recess for the extrusion deformation, because the feeding presss from both sides the groove tank bottom to the distance of the perforation lower extreme edge of heating pipe is less than the metal strip width (promptly the feeding presss from both sides the groove depth and is less than the metal strip width), and the extrusion deformation is with the unique structure of recess and the extrusion deformation recess and the perforation unique position relation of heating pipe for the extrusion deformation, can make the strap inboard produce one compulsory bending deformation and make the position of being bent the deformation closely laminate to the heating pipe surface. Like this, only need the chuck to drive the heating pipe rotation, under extrusion anchor clamps's effect, the strap just can be bent by force and make its inside fixed to the heating pipe surface by the extrusion laminating, realize spiral winding simultaneously, simultaneously along with the heating pipe rotation, the reaction force that produces when extrusion anchor clamps extrude and twine the strap can drive extrusion anchor clamps and slide toward the heating pipe other end for on the heating pipe twines the heating pipe from becoming the pitch, need not extra power and strap fixed convenient and reliable. Meanwhile, the size of the thread pitch can be flexibly adjusted and controlled by the thickness of the clamping block conveniently.
Furthermore, the upper end of the outer side surface of the clamping block is also provided with a spiral deformation guiding groove, the spiral deformation guiding groove is positioned at the position where the metal belt screwed out by the extrusion clamp is attached to the clamping block, and the shapes of notches of the spiral deformation guiding groove on the outer side of the clamping block and the upper end surface of the spiral deformation guiding groove are arc-shaped.
Like this for the strap is laminated mutually with the helical deformation guide way when the strap is followed extrusion fixture and is unscrewed, and relies on the helical deformation guide way guide strap to produce ascending displacement in the axial gradually, guarantees that the strap realizes spiral winding's stability and reliability, also avoids stress too much to concentrate simultaneously and leads to the strap to be scraped badly.
Furthermore, the upper part of the inner side surface of the clamping block is provided with a step, the lower part of the clamping block is jointed with the supporting block and fixedly connected with the supporting block through a fixing thread piece, so that a space formed between the step and the supporting block forms the feeding clamping groove.
Therefore, the clamping blocks are convenient to mount and fix and the feeding clamping grooves are convenient to set and form.
Furthermore, the lower end of the clamping block is provided with upward mounting grooves which are arranged in parallel, and the fixing screw passes through the mounting grooves to realize the fixation of the clamping block.
Therefore, the vertical direction of the clamping block can be adjusted after the threaded piece for fixing is loosened, the distance from the bottom of the feeding clamping groove to the lower end of the heating pipe is further adjusted, and the depth of the fin after the metal strip is wound into the fin can be further adjusted. Therefore, the adjusting and controlling of the depth of the fins are realized by adopting a simple structure.
Furthermore, the anti-rotation mechanism comprises an anti-rotation support arm fixed on one side of the support block, the outer end of the anti-rotation support arm bends and extends downwards and is provided with a sliding block, the lower surface of the sliding block is provided with a sliding plane, and the sliding plane is in sliding fit with a guide plane which is arranged on the rack and parallel to the positioned heating pipe.
Like this, prevent that rotation mechanism adopts simple structure can prevent that extrusion anchor clamps rotation can not produce the unnecessary ascending restraint in side simultaneously to guarantee that extrusion anchor clamps can realize the winding reliability and the stability to the strap.
In conclusion, the invention has the advantages of convenient manufacture, good safety, low preparation cost, good product quality, high heat conductivity and the like.
Drawings
Fig. 1 is a schematic structural view of a processing apparatus used in an embodiment of the present invention.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a sectional view a-a of fig. 1.
Fig. 4 is a perspective view of the single pressing jig of fig. 1.
Fig. 5 is a left side view of the individual compression clip of fig. 1.
Fig. 6 is a schematic view of the structure of the individual support blocks of fig. 4.
Fig. 7 is a schematic view of the structure of the individual support blocks of fig. 5.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In the specific implementation: a winding processing method of a heating pipe metal fin comprises the following steps of (1) fixing one end of a straight heating pipe at the center of a chuck, and fixing the other end of the straight heating pipe to a heating pipe supporting seat in a horizontally extending and rotatable mode; (2) fixing one end of a metal band on the end of the heating pipe close to the chuck, and then starting a motor to drive the chuck to rotate so that the metal band is spirally and spirally connected on the heating pipe along with the rotation of the heating pipe to form a metal fin; the metal band is extruded and deformed before being screwed on the heating pipe, so that one side of the metal band, which is connected with the heating pipe, is bent, and the bent side edge part is attached and pressed on the heating pipe.
Therefore, welding is not needed, the process is simple, the metal belt is attached to the heating pipe after being bent, the deformation difficulty of metal belt winding is reduced, and the heat conduction performance of the manufactured fin is improved.
In the embodiment, the method is realized by adopting the following heating pipe fin winding processing equipment, as shown in fig. 1-7, comprises a frame 1, one end of the frame is provided with a vertically arranged chuck 2, the chuck 2 is in transmission connection with a motor 3 fixed on the frame, the other end of the frame 1 is provided with a heating pipe supporting seat 4 opposite to the chuck 2, a heating pipe mounting tool which can vertically rotate is arranged on the heating pipe supporting seat 4 opposite to the chuck, so that a horizontal heating pipe installation station is formed between the chuck 2 and the heating pipe installation tool and the rotatable clamping and positioning of the heating pipe 5 are realized, the device comprises a positioning device, a metal strip bending deformation device and an extrusion clamp, wherein the extrusion clamp is arranged along the length direction of the positioned heating pipe in a follow-up mode, the extrusion clamp is provided with a forming part located on one side of the circumferential surface of the positioned heating pipe, and the forming part is used for bending and deforming one side of the metal strip and winding the bending deformation side of the metal strip on the surface of the positioned heating pipe.
When this equipment uses, install the heating pipe on heating pipe installation station earlier, after passing extrusion fixture's shaping portion with strap one end along heating pipe outer peripheral face edgewise again, the one end tip of fixed winding at the heating pipe, then the motor drives the chuck and rotates and drive the heating pipe rotatory, the feeding of pulling strap from extrusion fixture's shaping portion, the strap gets into behind the extrusion fixture shaping portion, the inboard that is close to the heating pipe is bent by shaping portion and is out of shape and the extrusion laminating winding of forcing is on the heating pipe surface, the strap outside forms the fin upright in the heating pipe surface, along with the rotation of heating pipe, the reaction force that produces when extrusion fixture extrudees the strap, can drive extrusion fixture and slide towards the heating pipe other end, make the heating pipe twine on the heating pipe from becoming pitch.
Like this, when this equipment used, can rely on extrusion anchor clamps to bend earlier the strap inboard and warp the back and make its extrusion laminating winding on the heating pipe again, like this, firstly greatly improved the area of contact of strap and heating pipe circumferential surface, made its laminating closely reliable, need not to adopt the welding again and can fix firmly, simplified the process and greatly saved the cost. And secondly, the inner side of the metal belt is bent and then wound on the circumferential surface of the heating pipe, the outer edge position of the metal belt is basically not subjected to or rarely subjected to the deformation force of forced stretching when the metal belt is wound, the deformation difficulty of the metal belt winding is greatly reduced, the outer side deformation tension of the metal belt is small, the metal belt is not easy to crack, the safety is higher, and the appearance quality of the prepared fin is better. And thirdly, after the contact area between the circumferential surfaces of the metal belt and the heating pipe is increased, the heat conduction effect from the heating pipe to the metal belt is also greatly improved, the heat conduction performance of the prepared fin is greatly improved, and the product performance quality is improved.
The heating pipe mounting tool comprises a heating pipe mounting hole 6 positioned at the upper part of the heating pipe supporting seat 4, the heating pipe mounting hole is arranged right opposite to the center of the chuck, and the heating pipe mounting hole 6 is used for enabling a heating pipe to pass through to realize mounting; the lower end of the heating pipe supporting seat 4 is installed on the rack through a supporting seat translation matching structure, and the supporting seat translation matching structure can drive the heating pipe supporting seat to freely translate along the length direction of the heating pipe after positioning.
Therefore, by adopting a simple heating pipe mounting hole mode, the rotatable clamping and positioning of the heating pipe can be realized only by penetrating the end part of the heating pipe through the heating pipe mounting hole, the structure is simple, and the clamping is convenient, fast and reliable. Meanwhile, the heating pipe supporting seat can freely translate along the length direction of the positioned heating pipe, so that the heating pipe supporting seat can follow the extrusion clamp to follow up during working. When making the fin winding like this, the winding position keeps the position that is closer to the heating pipe supporting seat always, avoids heating pipe both ends holding position to lead to the heating pipe rotatory time disturbance degree too big production to rock apart from the fin winding position, makes the winding effect receive to rock the influence and improves the winding degree of difficulty and reduce fin winding quality.
Wherein, as shown in fig. 3, a bearing is arranged on the upper part of the heating pipe supporting seat 4 opposite to the center of the chuck, and the inner ring of the bearing forms the heating pipe mounting hole 6.
Therefore, the heating pipe can be more conveniently and freely rotated on the heating pipe supporting seat.
The support seat translation matching structure comprises a support seat slide rail 7 which is arranged on the rack 1 and is parallel to the lower part of the heating pipe installation station, and a translation matching part which can horizontally move, clamp and match the lower end of the heating pipe support seat and the support seat slide rail 7.
Therefore, the lower end of the heating pipe supporting seat is clamped and slidably matched with the supporting seat slide rail through the translation matching part, the heating pipe supporting seat can be arranged in a translation mode, the structure is simple, the installation and matching are convenient, and the movement is stable and reliable.
Wherein, see fig. 3, supporting seat slide rail 7 is obtained by a square pipe of a level setting, and square pipe one side edge upwards sets up between two parties, and translation cooperation portion is including setting up two jack catchs 8 in square pipe both sides, and jack catch 8 and the adjacent inboard of square pipe are the L shape that matches with square pipe lateral surface appearance.
Therefore, the structure is simple, the realization is convenient, and the realization of the clamping fit of translational motion is facilitated.
Wherein, the inside of the claw is respectively provided with a roller 9 along the upper and lower sides of the L shape, and the rollers 9 can be correspondingly matched on the upper and lower inclined planes at the two sides of the square tube in a rolling way.
Like this, adopt four gyro wheels, it is spacing in order to keep the complex stability to control the chucking about convenient, and the gyro wheel realizes that the rolling fit is more steady reliable than sliding fit simultaneously.
Wherein, the extrusion fixture is shown in fig. 4-7, and comprises a supporting block 10, a heating pipe perforation 11 for the heating pipe to pass through and rotate freely is arranged on the supporting block 10, and is sleeved on the positioned heating pipe by the heating pipe perforation when working, a vertical clamping block 12 is arranged on the lower part of one side of the supporting block facing the chuck side, the clamping block 12 and the supporting block 10 are relatively fixed, a feeding clamping groove for the metal belt to pass through the feeding along the vertical direction is formed between the clamping block 12 and the supporting block 10, the length direction of the feeding clamping groove is arranged along the heating pipe 5 after positioning, the upper end surface of the clamping block 12 is horizontally arranged and forms the upper end surface of the feeding clamping groove, the upper end surface of the feeding clamping groove is arranged along the lower end edge of the heating pipe perforation, the distance from the bottom of the feeding clamping groove to the lower end edge of the heating pipe perforation is smaller than the width of the metal belt, a groove 13, the shape of the groove 13 for extrusion deformation extends from the position of a third quadrant of the front lower part of the heating pipe perforation along the feeding direction to the front lower part of the side surface of the feeding clamping groove, the width of the notch of the groove 13 for extrusion deformation is gradually widened from the front lower position to the heating pipe perforation position, the depth of the groove 13 for extrusion deformation is gradually deepened from the front lower position to the heating pipe perforation position, and the section of the groove 13 for extrusion deformation along the width direction is arc-shaped; the extrusion fixture is also provided with an anti-rotation mechanism for preventing the extrusion fixture from rotating.
Thus, when the extrusion clamp works, the metal belt is fed along the feeding clamping groove, the end of the metal belt is pre-wrapped and wound on the heating pipe, so that the heating pipe rotates to drive the metal belt to continuously feed and realize winding, the metal belt is fed from the feeding clamping groove and then revolved out from the upper part of the heating pipe along the half circle of the heating pipe, rotates downwards again and passes through the upper end position of the clamping block, the outer side of the metal belt is attached to the outer side of the clamping block in the downward rotating process and is forcibly twisted into an inclined state by the clamping block, and the outer side of the clamping block applies torsion towards the direction of the clamping block to the position where the outer side of the metal belt revolves out from the upper part of the heating pipe, so that after the action is applied to the metal belt, a counter-acting force which is pried towards the direction away from the clamping block is generated to the lower position of the inner side of the, the strap inboard can enter into the recess for the extrusion deformation, because the feeding presss from both sides the groove tank bottom to the distance of the perforation lower extreme edge of heating pipe is less than the metal strip width (promptly the feeding presss from both sides the groove depth and is less than the metal strip width), and the extrusion deformation is with the unique structure of recess and the extrusion deformation recess and the perforation unique position relation of heating pipe for the extrusion deformation, can make the strap inboard produce one compulsory bending deformation and make the position of being bent the deformation closely laminate to the heating pipe surface. Like this, only need the chuck to drive the heating pipe rotation, under extrusion anchor clamps's effect, the strap just can be bent by force and make its inside fixed to the heating pipe surface by the extrusion laminating, realize spiral winding simultaneously, simultaneously along with the heating pipe rotation, the reaction force that produces when extrusion anchor clamps extrude and twine the strap can drive extrusion anchor clamps and slide toward the heating pipe other end for on the heating pipe twines the heating pipe from becoming the pitch, need not extra power and strap fixed convenient and reliable. Meanwhile, the size of the thread pitch can be flexibly adjusted and controlled by the thickness of the clamping block conveniently.
Wherein, the upper end position of the outer side surface of the clamping block 12 is also provided with a spiral deformation guiding groove 14, the spiral deformation guiding groove 14 is positioned at the position where the metal belt screwed out of the extrusion clamp is attached to the clamping block, and the shapes of the notches of the spiral deformation guiding groove 14 at the outer side and the upper end surface of the clamping block are both arc-shaped.
Like this for the strap is laminated mutually with the helical deformation guide way when the strap is followed extrusion fixture and is unscrewed, and relies on the helical deformation guide way guide strap to produce ascending displacement in the axial gradually, guarantees that the strap realizes spiral winding's stability and reliability, also avoids stress too much to concentrate simultaneously and leads to the strap to be scraped badly.
Wherein, the upper portion of the inner side surface of the clamping block 12 is provided with a step, the lower portion of the clamping block 12 is jointed with the supporting block and fixedly connected with the supporting block through a fixing screw 15, so that the space formed between the step and the supporting block forms the feeding clamping groove.
Therefore, the clamping blocks are convenient to mount and fix and the feeding clamping grooves are convenient to set and form.
Wherein, the lower end of the clamping block 12 is provided with an upward mounting groove 16 which is arranged in parallel, and the fixing screw 15 passes through the mounting groove 16 and realizes the fixing of the clamping block.
Therefore, the vertical direction of the clamping block can be adjusted after the threaded piece for fixing is loosened, the distance from the bottom of the feeding clamping groove to the lower end of the heating pipe is further adjusted, and the depth of the fin after the metal strip is wound into the fin can be further adjusted. Therefore, the adjusting and controlling of the depth of the fins are realized by adopting a simple structure.
The anti-rotation mechanism comprises an anti-rotation support arm 17 fixed on one side of the supporting block, the outer end of the anti-rotation support arm 17 bends and extends downwards and is provided with a sliding block 18, the lower surface of the sliding block 18 is provided with a sliding plane, and the sliding plane is in sliding fit with a guide plane which is arranged on the rack and parallel to the positioned heating pipe.
Like this, prevent that rotation mechanism adopts simple structure can prevent that extrusion anchor clamps rotation can not produce the unnecessary ascending restraint in side simultaneously to guarantee that extrusion anchor clamps can realize the winding reliability and the stability to the strap.
Claims (8)
1. A winding processing method of a heating pipe metal fin comprises the following steps of (1) fixing one end of a straight heating pipe at the center of a chuck, and fixing the other end of the straight heating pipe to a heating pipe supporting seat in a horizontally extending and rotatable mode; (2) fixing one end of a metal band on the end of the heating pipe close to the chuck, and then starting a motor to drive the chuck to rotate so that the metal band is spirally and spirally connected on the heating pipe along with the rotation of the heating pipe to form a metal fin; the device is characterized in that the metal band is extruded and deformed before being screwed on the heating pipe, so that one side of the metal band, which is connected with the heating pipe, is bent, and the bent side edge part is attached and pressed on the heating pipe;
the method is realized by adopting heating pipe fin winding processing equipment which comprises a rack, wherein one end of the rack is provided with a vertically arranged chuck, the chuck is in transmission connection with a motor fixed on the rack, the other end of the rack is provided with a heating pipe supporting seat over against the chuck, and a heating pipe mounting tool capable of vertically rotating is arranged over against the chuck, so that a horizontal heating pipe mounting station is formed between the chuck and the heating pipe mounting tool and the rotatable clamping and positioning of a heating pipe are realized;
the extrusion fixture comprises a supporting block, a heating pipe through hole which can be penetrated by a heating pipe and can rotate freely is arranged on the supporting block, the heating pipe is sleeved on the positioned heating pipe by the heating pipe through hole when in work, a vertical clamping block is also arranged on the lower part of one side of the supporting block facing the chuck in parallel, the clamping block and the supporting block are relatively fixed, a feeding clamping groove for allowing a metal belt to penetrate through the feeding in the vertical direction is formed between the clamping block and the supporting block, the length direction of the feeding clamping groove is arranged along the heating pipe which is vertical to the position, the upper end surface of the clamping block is horizontally arranged and forms the upper end surface of the feeding clamping groove, the upper end surface of the feeding clamping groove is arranged along the lower end edge of the heating pipe through hole, the distance from the bottom of the feeding clamping groove to the lower end edge of the heating pipe through, the shape of the groove for extrusion deformation extends from the position of a third quadrant of the front lower part of the heating pipe perforation along the feeding direction to the front lower part of the side surface of the feeding clamping groove, the width of the notch of the groove for extrusion deformation is gradually increased from the front lower position to the heating pipe perforation position, the depth of the groove for extrusion deformation is gradually increased from the front lower position to the heating pipe perforation position, and the section of the groove for extrusion deformation along the width direction is arc; after the metal band is fed from the feeding clamping groove and is screwed out from the upper part of the heating pipe along the rotating half circle of the heating pipe, the metal band rotates downwards again and passes through the upper end position of the clamping block, the outer side of the metal band is attached to the outer side of the clamping block in the downward rotating process and is forcibly twisted by the clamping block to be in an inclined state, a reaction force prying towards the direction away from the chuck is generated at the lower part position of the inner side of the metal band at the other side of the heating pipe, when the metal band passes through the position, the inner side of the metal band can enter the groove for extrusion deformation, and the inner side of the metal band generates forced bending deformation and the part of the metal band which is; the extrusion fixture is also provided with an anti-rotation mechanism for preventing the extrusion fixture from rotating.
2. The winding method of heating pipe metal fin according to claim 1, characterized in that: the heating pipe mounting tool comprises a heating pipe mounting hole positioned at the upper part of the heating pipe supporting seat, the heating pipe mounting hole is arranged right opposite to the center of the chuck, and the heating pipe mounting hole is used for enabling a heating pipe to pass through for mounting; the lower end of the heating pipe supporting seat is installed on the rack through a supporting seat translation matching structure, and the supporting seat translation matching structure can drive the heating pipe supporting seat to freely translate along the length direction of the heating pipe after positioning.
3. The winding method of heating pipe metal fin according to claim 2, characterized in that: the support seat translation matching structure comprises a support seat slide rail arranged on the rack and parallel to the lower part of the heating pipe installation station, and a translation matching part for clamping and matching the lower end of the heating pipe support seat and the support seat slide rail in a translation manner.
4. The winding method of heating pipe metal fin according to claim 3, characterized in that: the support seat slide rail is obtained by a horizontally arranged square tube, the edge on one side of the square tube is arranged upwards in the middle, the translational matching part comprises two clamping jaws arranged on two sides of the square tube, and the adjacent inner sides of the clamping jaws and the square tube are in an L shape matched with the outer side surface of the square tube;
the inner side of the clamping jaw is respectively provided with a roller along the upper side and the lower side of the L shape, and the rollers can be correspondingly matched on the upper inclined plane and the lower inclined plane on the two sides of the square tube in a rolling manner.
5. The winding method of heating pipe metal fin according to claim 1, characterized in that: the upper end of the outer side surface of the clamping block is also provided with a spiral deformation guiding groove, the spiral deformation guiding groove is positioned at the position where the metal belt screwed out by the extrusion clamp is attached to the clamping block, and the spiral deformation guiding groove is arc-shaped at the outer side of the clamping block and the notch of the upper end surface.
6. The winding method of heating pipe metal fin according to claim 5, characterized in that: the upper part of the inner side surface of the clamping block is provided with a step, the lower part of the clamping block is jointed with the supporting block and fixedly connected with the supporting block through a fixing thread piece, so that a space formed between the step and the supporting block forms the feeding clamping groove.
7. The winding method of heating pipe metal fin according to claim 6, characterized in that: the lower end of the clamping block is provided with upward mounting grooves which are arranged in parallel, and the fixing screw thread piece penetrates through the mounting grooves and realizes the fixation of the clamping block.
8. The winding method of heating pipe metal fin according to claim 1, characterized in that: the anti-rotation mechanism comprises an anti-rotation support arm fixed on one side of the support block, the outer end of the anti-rotation support arm bends and extends downwards and is provided with a sliding block, the lower surface of the sliding block is provided with a sliding plane, and the sliding plane is in sliding fit with a guide plane which is arranged on the rack and parallel to the positioned heating pipe.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910225478.7A CN109772977B (en) | 2019-03-27 | 2019-03-27 | Winding processing method for metal fin of heating pipe |
| CN202010294499.7A CN111250582B (en) | 2019-03-27 | 2019-03-27 | Heating pipe metal fin winding processing equipment and extrusion fixture thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910225478.7A CN109772977B (en) | 2019-03-27 | 2019-03-27 | Winding processing method for metal fin of heating pipe |
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| CN202010294499.7A Division CN111250582B (en) | 2019-03-27 | 2019-03-27 | Heating pipe metal fin winding processing equipment and extrusion fixture thereof |
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| CN109772977A CN109772977A (en) | 2019-05-21 |
| CN109772977B true CN109772977B (en) | 2020-04-17 |
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| CN202010294499.7A Active CN111250582B (en) | 2019-03-27 | 2019-03-27 | Heating pipe metal fin winding processing equipment and extrusion fixture thereof |
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| CN115255822A (en) * | 2022-07-27 | 2022-11-01 | 抚顺煤矿电机制造有限责任公司 | Machining method of motor cooling water path structure |
| CN115674660A (en) * | 2022-11-29 | 2023-02-03 | 江苏斯必得重工机械有限公司 | Automatic change rubber coating line equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB242518A (en) * | 1925-03-30 | 1925-11-12 | Otto Rauch | A new or improved appliance for helically coiling strips of metal |
| GB262775A (en) * | 1925-12-11 | 1927-09-15 | George Herbert Whittingham | Improvements in apparatus for making edgewound coils |
| GB611790A (en) * | 1946-05-08 | 1948-11-03 | Thomas Bolton & Sons Ltd | Improvements in and in the manufacture of tubular members provided with projecting fins |
| AU3363371A (en) * | 1971-09-17 | 1973-03-22 | D. C. Norris & Company Limited | Tube and shaft finning machines |
| JPS53100162A (en) * | 1977-02-14 | 1978-09-01 | Hitachi Ltd | Manufacturing apparatus for heat exchanger tube |
| JPH0741314B2 (en) * | 1989-12-15 | 1995-05-10 | 村田発條株式会社 | Method for manufacturing cooling fins |
| JPH06254642A (en) * | 1993-03-04 | 1994-09-13 | Mitsubishi Heavy Ind Ltd | Production of tube with spiral fin |
| IT1297425B1 (en) * | 1997-12-23 | 1999-12-17 | Wam Spa | METHOD FOR MANUFACTURING PROPELLERS AND DEVICE FOR IMPLEMENTING THE METHOD. |
| GB2363091B (en) * | 2000-06-07 | 2003-10-08 | Donal Thomas Curry | A method, a tool and apparatus for coiling and elongated wire member |
| CN2455403Y (en) * | 2000-11-16 | 2001-10-24 | 梁同山 | Spiral pipe shaping apparatus |
| KR100650204B1 (en) * | 2005-06-27 | 2006-11-27 | 길흥섭 | Apparatus for manufacturung fin-tube in the heat exchanger |
| CN201988856U (en) * | 2010-10-09 | 2011-09-28 | 江苏双勤民生冶化设备制造有限公司 | Spiral fin winding device |
| CN106345930B (en) * | 2016-09-30 | 2018-07-10 | 上海双木散热器制造有限公司 | Spiral metal piece is around sheet forming device |
| CN206588167U (en) * | 2017-02-15 | 2017-10-27 | 灵璧鸿峰科技环保设备有限责任公司 | A kind of cooling tube upper limb matrix wind |
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| CN111250582B (en) | 2021-11-23 |
| CN111250582A (en) | 2020-06-09 |
| CN109772977A (en) | 2019-05-21 |
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