CN211679499U - Heat exchange tube processing equipment - Google Patents

Abstract

The utility model relates to a heat exchange tube processing device, which comprises a punching mechanism; the stamping mechanism comprises a movable part which is in a crank slider transmission mode and can vertically slide in a reciprocating mode, a working table is arranged below the movable part, the lower surface of the movable part is connected with a replaceable single stamping head, and a positioning device is arranged on the upper surface of the working table and used for stabilizing the heat exchange tube when the stamping head stamps the heat exchange tube downwards along with the movable part. The positioning device comprises a positioning main body, wherein a mounting hole is formed in the positioning main body, a positioning core barrel is detachably mounted in the mounting hole so as to penetrate into the heat exchange tube, a punching opening is formed in the positioning core barrel, and an abdicating opening which is completely exposed out of the punching opening is formed in the positioning main body so that a punching head can punch the heat exchange tube in the positioning core barrel through the punching opening. The equipment is simple and reliable, and the cost is lower; the positioning is reliable, and the stamping frequency and the corresponding processing efficiency can be improved.

Description

Heat exchange tube processing equipment

The application is a divisional application, and the application date of the original application is as follows: 2019-06-10; application No.: 201920862264.6, respectively; name: t-shaped heat exchange tube processing equipment.

Technical Field

The utility model belongs to the technical field of mechanical equipment, concretely relates to heat exchange tube processing equipment.

Background

The heat exchange tube is used as a common heat exchange part for heat exchange between two media inside and outside the tube, and is widely applied to heat exchange equipment in the fields of electric power, petrifaction, metallurgy, food, refrigeration and the like. In order to improve the heat exchange performance of the heat exchange tube and improve the heat exchange efficiency, the performance improvement research of the heat exchange tube is developed towards the direction of arranging the pits on the tube wall at present, the heat exchange effect is improved by arranging the pits on the tube wall, but the flow resistance along the heat exchange path is increased to a certain extent, and the machinability corresponding to different pit arrangement forms is different. In the prior art:

for example, CN200989745Y, a set of pits (symmetrical) are respectively arranged on the upper and lower parts of the cross section of the pipe, and each set of pits are uniformly arranged in a straight line at intervals in the axial direction; the flow resistance is increased to a certain extent but the heat exchange effect is better, the processing should be stamping up and down simultaneously, and stamping again after axial feeding;

for example, CN101281005A, a plurality of groups of cells (spherical protrusions) are uniformly distributed on the cross section of the pipe in the circumferential direction, each group of cells is uniformly arranged in a straight line in the axial direction at intervals, and two groups of cells adjacent in the circumferential direction can be alternatively staggered (arranged) in the axial direction; the resistance is increased less while the heat exchange performance is enhanced;

for example, CN101566445A, a plurality of groups of ellipsoidal cells (spherical recesses) are uniformly distributed on the section of a pipe in the circumferential direction, and each group of cells are uniformly arranged in a straight line at intervals in the axial direction; the effect that the fluid resistance is increased slightly, and the heat exchange enhancement ratio is larger than the resistance increase ratio so as to improve the comprehensive heat exchange performance is achieved, the processing of the method is to punch a row of cells at a time by a plurality of punch heads along the axial direction, and then punch the tubes after the tubes rotate in the circumferential direction;

for example, CN204694139U, the dimples arranged on the outer wall of the tube are uniformly arranged along the spiral, and if a group of dimples arranged on a spiral is used, there may be one or more groups in the circumferential direction; the flow resistance is equivalent to that of a light pipe, the heat exchange effect is better, and the processing of the heat exchange tube is to stamp the heat exchange tube in turn along spirals one by one;

for example, 1-10 groups of pits are uniformly distributed on the section of a pipe in the circumferential direction of CN206540456U and CN206540452U, and each group of pits are uniformly arranged in a straight line at intervals in the axial direction or distributed along a spiral direction; the heat exchange effect is better, the heat exchange is not easily influenced by scaling in the pipe, and the pressure loss of fluid in the pipe is small;

for example, CN106197119A, a plurality of groups of pits are uniformly distributed on the section of a pipe in the circumferential direction, each group of pits are uniformly arranged in a straight line at intervals in the axial direction, and the pits on the arrangement section of two adjacent pits in the axial direction are arranged in a staggered manner at a certain circumferential angle; the heat exchange effect is better, and the heat exchange is not easily influenced by scaling in the pipe; there are also some special T-T heat pipes of the type as in CN 107906999A.

The various heat exchange pipes are formed by extruding by adopting a plurality of punches and a hydraulic system as a power source, such as series processing equipment provided by the southwest university of petroleum. However, the frequency of extrusion by hydraulic power is slow, the processing efficiency is low, the equipment is complex, and the cost is high.

Disclosure of Invention

The above-mentioned not enough to prior art, the to-be-solved technical problem of the utility model is to provide a heat exchange tube processing equipment, avoid existing equipment more complicated, effect with high costs.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the heat exchange tube processing equipment comprises a stamping mechanism and a conveying mechanism for conveying the heat exchange tubes to the stamping mechanism; the stamping mechanism comprises a movable part which is in a crank slider transmission mode and can vertically slide in a reciprocating mode, a working table is arranged below the movable part, the lower surface of the movable part is connected with a replaceable single stamping head, and a positioning device is arranged on the upper surface of the working table and used for stabilizing the heat exchange tube when the stamping head stamps the heat exchange tube downwards along with the movable part; conveying mechanism includes bed frame and connection substrate, the bed frame upper berth is equipped with two parallel leading rails and stroke rack guide rail, connection substrate erects on leading rail and slidable through a plurality of first conveying roller assemblies, and connection substrate's upper surface is equipped with rotatable chuck in order to be used for the centre gripping heat exchange tube, the rotation of chuck is controlled in order to make the rotation through first step motor drive, still be equipped with second step motor on the connection substrate and through gear drive connected mode with stroke rack guide rail transmission is connected in order to make the transport controlled.

According to the technical scheme, the stroke rack guide rail is located between the two main guide rails, the chuck is located at one end, facing the punching mechanism, of the connecting substrate, and the position, connected with the stroke rack guide rail in a transmission mode, of the second stepping motor is located at the other end of the connecting substrate.

Furthermore, the rack face of the stroke rack guide rail faces upwards, a horizontal substrate extending lug is arranged at the other end of the connecting substrate facing away from the chuck, a second conveying roller assembly is arranged below the substrate extending lug, the second conveying roller assembly can be arranged on the main guide rail in a sliding way, a gap is formed between the upper surface of the second conveying roller assembly and the lower surface of the substrate extending lug, a retreating clutch rod is inserted in the gap and is vertical to the main guide rail, one end of the back-up clutch lever is hung out and is provided with an operating lever so as to manually rotate the back-up clutch lever, the back-up clutch lever is provided with a horizontal lug in the radial direction, the diameter of the backing clutch rod is smaller than the gap so as to be rotatable in the gap, and the length of the lug is larger than the gap so that when the backing clutch rod rotates subsequently, the lug can lift the corresponding end of the connecting base plate so as to disconnect the transmission connection of the second stepping motor and the stroke rack guide rail.

Further, the free end of the substrate extending lug is also extended downwards to form an extending lug, and the second conveying roller assembly is limited below the substrate extending lug through the extending lug so as to avoid falling off.

Further, be equipped with down the pressure device on the base plate extension ear, down the pressure device and include the bolt, the bolt is vertical to pass the through-hole of base plate extension ear downwards and connect the upper surface at second conveying roller assembly after, and the head of bolt and the base plate still compress between the upper surface of ear has the helical compression spring.

Furthermore, the stroke rack guide rails are also arranged in two rows in parallel, a reduction gearbox is arranged on the upper surface of the connecting base plate and located between the two rows of stroke rack guide rails, a second stepping motor is connected with an input shaft of the reduction gearbox through synchronous belt transmission, two ends of an output shaft of the reduction gearbox extend out and are respectively connected with a first transmission gear, the first transmission gear is in transmission engagement with a second transmission gear below the first transmission gear, and the second transmission gear penetrates through an opening in the connecting base plate and is in transmission engagement with the stroke rack guide rails.

Furthermore, the second transmission gear is connected to the connecting substrate through a gear seat assembly, the gear seat assembly comprises a seat box body, a rotating shaft horizontally extends out of the seat box body, and the second transmission gear is connected to the rotating shaft.

Further, positioner is including the location main part, the last mounting hole of having seted up of location main part just demountable installation has a location core section of thick bamboo in the mounting hole, location core section of thick bamboo is coaxial so that alright penetrate the heat exchange tube by the chuck centre gripping with the chuck, the punching press opening has been seted up on the location core section of thick bamboo, seted up in the location main part will the opening of stepping down that the punching press opening exposes completely so that the punching press head accessible the punching press opening carries out the punching press to the heat exchange tube in the location core section of thick bamboo, the punching press opening is for being 90 to 120 degrees at the ascending fan-shaped opening of location core section of thick bamboo circumference and.

Further, the stamping opening is arranged at one end of the positioning core barrel, which is far away from the chuck.

Furthermore, the positioning main body is detachably connected with the working table top through a connecting bottom plate.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses a punching press mechanism is ripe simple, uses reliably, combines conveying mechanism can produce the dimpled heat exchange tube of various specifications, reduction equipment cost.

2. The utility model discloses a punching press mechanism adopts the slider-crank form, and punching press frequency and the machining efficiency who corresponds all improve greatly.

3. The utility model discloses an equipment is because of the punching press frequency is high, can correspond to produce and personally submit the high density butyl cell that the spiral form distributes at the heat exchange tube outward surface, makes high density butyl cell heat exchange tube, reduces the outer flow resistance of pipe.

4. The utility model discloses a conveying mechanism centre gripping is sent into reliably, returns back to adopt and retreat the clutch lever simple reliable to further reduce cost.

Drawings

FIG. 1 is a schematic structural view of the heat exchange tube processing equipment of the present invention;

FIG. 2-top view of FIG. 1 (partially enlarged);

3-right view angle of FIG. 1 (mainly illustrating the conveying mechanism connection form);

FIG. 4-the partial position of FIG. 1 are enlarged schematic views;

FIG. 5 is a schematic structural view of a positioning device according to the present invention;

FIG. 6-left side view of FIG. 5;

fig. 7-6.

The punching mechanism 6, the movable part 61, the punching head 62, the positioning device 63, the positioning body 631, the abdicating opening 632, the positioning core barrel 633, the punching opening 634, the connecting bottom plate 635, the working table 64, the base frame 7, the main guide rail 71, the travel rack guide rail 72, the rack seat 721, the chuck 73, the first stepping motor 731, the reduction box 74, the second stepping motor 741, the first transmission gear 742, the second transmission gear 743, the gear seat assembly 744, the connecting substrate 75, the extending lug 751, the pressing device 752, the backward clutch lever 753, the operating lever 754, the lug 755, the substrate extending lug 756, and the first conveying roller assembly 8.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying drawings.

Referring to fig. 1 to 7, the heat exchange tube processing apparatus of the embodiment includes a stamping mechanism 6 and a conveying mechanism for conveying a heat exchange tube to the stamping mechanism 6; the stamping mechanism 6 comprises a crank block type movable part 61 driven by a motor, the movable part 61 can reciprocate vertically, a working table 64 is arranged below the movable part 61, the lower surface of the movable part 61 is connected with a replaceable single stamping head 62, and the upper surface of the working table 64 is provided with a positioning device 63 for stabilizing a heat exchange tube when the stamping head 62 stamps the heat exchange tube downwards along with the movable part 61; conveying mechanism includes bed frame 7 and connection base plate 75, bed frame 7 upper berth is equipped with two parallel leading rail 71 and stroke rack guide rail 72, connection base plate 75 erects on leading rail 71 and can extend the leading rail slip through four first conveyor roller assembly 8 (two on a leading rail 71), and the upper surface of connection base plate 75 is equipped with rotatable chuck 73 in order to be used for the centre gripping heat exchange tube, the rotation of chuck 73 is driven so that rotate the controlled through first step motor 731, and during the implementation, the selectable model of first step motor 731: 130HCY290AH3, and a second stepping motor 741 fixed on the connecting base plate 75 and connected to the travel rack rail 72 in a gear-driven manner (gear-rack meshing transmission) to control the transportation.

In the heat exchange tube processing equipment of the embodiment, the stamping mechanism 6 adopts a crank-slider mechanism, is mature and reliable, has no detailed structure, is basically a rack (as a carrier), drives a crank on the rack to rotate through a motor (via a synchronous belt), and drives a slider (namely, a movable part 61) to reciprocate on a linear guide rail arranged on the rack through a connecting rod by a crank throw on the crank, so that the rotation of the crank is converted into the vertical reciprocating motion (stamping motion) of the movable part 61; the main movable working part of the conveying mechanism is a part sliding on the base frame 7, and is erected on two main guide rails 71 through a first conveying roller assembly 8, one main guide rail 71 is erected with two roller assemblies to ensure stability, the first conveying roller assembly 8 is a wheel which can be rotatably arranged between wing plates on two sides through a rotating shaft, the wing plates on two sides are connected to the lower surface of the top plate, and the top plate is connected below a connecting base plate 75 during assembly and use; in addition to smooth sliding, in order to avoid derailing, the upper surface of the main guide rail 71 may be a semi-circular arc (cross section), and the wheels used by the first conveying roller assembly 8 are correspondingly concave arcs (cross sections) so as to straddle the main guide rail 71 to avoid derailing in the left-right direction; in practice, two steel pipes can be selected and welded and fixed on the upper surface of the base frame 7 in parallel, and the upper half part of the steel pipe is utilized to form the main guide rail 71; the rotatable chuck 73 can select a common manually clamped three-jaw chuck to reduce the cost, the rotatability can be determined by a similar indexing head structure and a four-axis structure of a machining center, during implementation, the chuck 73 can be provided with a coaxial synchronous rotating connecting cylinder, the free end of the connecting cylinder is connected with the first stepping motor 731 by adopting synchronous belt transmission, and the middle part of the connecting cylinder is rotatably connected with a seat body on the connecting base plate 75 so as to determine the installation position. When the device is used, a sensor is arranged on the stamping mechanism 6 and is used for sensing the stamping times, the rotation of a crank can be sensed, the reciprocating motion of the movable part 61 can also be directly sensed, the sensor is connected with a controller through signals, the controller respectively controls and is connected with the first stepping motor and the second stepping motor, when the sensor senses one stamping action through the rotation of the crank or the sliding of the sliding block, namely, after the movable part 61 drives the stamping head 62 to stamp for one time in a reciprocating manner, the sensor transmits the signals to the controller and controls the first stepping motor and the second stepping motor to rotate for a certain angle according to the design value through the controller, correspondingly, the heat exchange tube clamped on the chuck 73 rotates for a certain angle in the circumferential direction according to the design and the connecting substrate 75 is fed for a certain length towards the stamping mechanism 6 to complete the feeding action, the stamping head 62 performs one-time stamping, and the continuous action is realized, by adding the stamping depth of the stamping head 62 (the mounting depth of the stamping head 62 on the movable part 61 can be adjusted or the height of the working table surface 64 can be adjusted), the series parameters of the heat exchange tube (such as the lead, the lead angle, the cell spacing, the occupied surface area and the like of the cylindrical spiral line where the cells are arranged) can be determined, the continuous operation is carried out, the continuous processing of the cell heat exchange tube is carried out, the efficiency is high, the equipment cost is low, and the high-density cell heat exchange tube with the cells distributed in a spiral mode can be manufactured.

The stroke rack guide rail 72 is located between the two rows of main guide rails 71, the chuck 73 is located at one end of the connection substrate 75 facing the stamping mechanism 6, and the position where the second stepping motor 741 is in transmission connection with the stroke rack guide rail 72 is located at the other end of the connection substrate 75.

In this way, the two rows of main guides 71 meet the requirement of smooth transport on the outside, with the chucks 73 facing and relatively closer to the punching mechanism 6, facilitating gripping and feeding.

Wherein the rack of the travel rack guide 72 faces upward (vertically upward), the other end of the connecting base plate 75 faces away from the chuck 73 and is provided with a horizontal base plate extending lug 756, a second conveying roller assembly is arranged below the base plate extending lug 756 and can be arranged on the main guide rail 71 in a sliding way, a gap is arranged between the upper surface of the second conveying roller assembly and the lower surface of the base plate extending lug 756, a retreating clutch rod 753 is inserted in the gap, the retreating clutch rod 753 is perpendicular to the main guide rail 71, one end of the retreating clutch rod 753 which is hung out is provided with a vertical operating rod 754 so as to manually rotate the retreating clutch rod 753, the retreating clutch rod 753 is provided with a horizontal lug 755 in the radial direction, the diameter of the retreating clutch rod 753 is smaller than the gap so as to be capable of rotating in the gap, the length of the lug 755 (in the radial direction of the retreating clutch rod 753) is larger than the gap so as to lift the corresponding end of the connecting base plate 75 when, the second stepper motor 741 is at this end in meshing engagement with the rack and pinion of the travel rack rail 72, thereby disengaging the drive connection of the second stepper motor 741 to the travel rack rail 72. When the connecting device is used, the operating rod 754 is manually held, the backward clutch rod 753 is rotated, the lug 755 which is originally horizontally positioned in the gap is changed into a vertical state, the second conveying roller assembly serves as a fulcrum, the corresponding end of the connecting substrate 75 is lifted, at the moment, the connecting substrate 75 is in an inclined state, only the first conveying roller assembly 8 at the forefront and the lug 755 and the second conveying roller assembly at the rear are used as supports, and therefore, the gear and rack meshing transmission between the second stepping motor 741 in the middle and the stroke rack guide rail 72 is disengaged, the sliding of the connecting substrate 75 on the main guide rail 71 is not limited (controlled), the connecting substrate 75 can freely slide on the main guide rail 71 in the direction of the extension degree, and the connecting substrate 75 is manually and quickly moved to the rear of the main guide rail 71 (away from the direction of the punching mechanism).

Therefore, the device can be manually and quickly retracted, and is ready for the dimpling processing of the next heat exchange tube, so that the production efficiency is improved; and the second stepping motor 741 does not need to be rotatable in both directions, reducing the cost.

Wherein the free end of the substrate extension ear 756 further extends downwardly with an extension ear 751 and the extension ear 751 limits the second conveyor roller assembly below the substrate extension ear 756 to avoid falling out. In this way, the function of preventing the backward clutch lever 753 from disengaging can be achieved; of course, the extension lug 751 is used to hook the second conveying roller assembly, and when the conveying device is in a conveying process, the extension lug 751 hooks the second conveying roller assembly to move together with the connecting substrate 75, so that the integral state is maintained, and the use is convenient.

A pressing device 752 is arranged on the substrate extending lug 756, the pressing device 752 comprises a bolt, the bolt vertically penetrates through a through hole in the substrate extending lug 756 downwards and then is connected to the upper surface of the second conveying roller assembly, and a spiral pressure spring is compressed between the head of the bolt and the upper surface of the substrate extending lug 756.

In this way, the bolt is positioned behind the backward clutch lever 753 (toward the front of the press mechanism), and functions to restrict the backward clutch lever 753; the rod part of the bolt can also be used as a guide rod when the manual rotation retreating clutch rod 753 realizes jacking action, and meanwhile, the return is more reliable through a spiral pressure spring, so that other auxiliary forces except gravity are provided.

The stroke rack guide rails 72 are also arranged in two parallel rows and are respectively connected to the base frame 7 through corresponding rack seats 721, the reduction gearbox 74 is fixedly arranged on the upper surface of the connecting base plate 75, the reduction gearbox 74 is positioned above the two rows of stroke rack guide rails 72 and between the rows of stroke rack guide rails 72, the second stepping motor 741 is connected with the input shaft of the reduction gearbox 74 through synchronous belt transmission, two ends of the output shaft of the reduction gearbox 74 extend out and are respectively connected with the first transmission gears 742, the first transmission gears 742 are in transmission engagement with the second transmission gears 743 below the first transmission gears 742, and the second transmission gears 743 penetrate through openings in the connecting base plate 75 to be in transmission engagement with the stroke rack guide rails 72.

Therefore, the conveying process is more stable and reliable due to the double-rack form, the cost of the reduction gearbox 74 can be reduced due to the reduction transmission outside the reduction gearbox 74, and the whole gear transmission connection process and the final transmission connection of the two-stroke rack guide rail 72 are correspondingly realized.

The second transmission gear 743 is connected to the connection substrate 75 through a gear seat assembly 744, the gear seat assembly 744 includes a seat box body, a rotatable rotating shaft extends out of the seat box body horizontally, and the second transmission gear 743 is connected to the rotating shaft. Thus, the coupling and the working stability of the second transmission gear 743 are ensured.

Wherein, positioner 63 includes location main part 631, the mounting hole has been seted up on location main part 631 just demountable installation has location core section of thick bamboo 633 in the mounting hole, location core section of thick bamboo 633 is coaxial so that can penetrate the heat exchange tube by chuck 73 centre gripping with chuck 73, stamping opening 634 has been seted up on the location core section of thick bamboo 633, seted up on the location main part 631 with the opening 632 that lets that stamping opening 634 exposes totally so that the punching press head 62 accessible stamping opening 634 punches to the heat exchange tube in the location core section of thick bamboo 633, stamping opening 634 is 90 to 120 degrees for fan-shaped opening and opening angle in location core section of thick bamboo 633 week.

Therefore, the pipe diameter can be processed, the pipe diameter size is large, and the adaptability is good; and the forming quality of the punched heat exchange tube can be ensured, and the punching opening 634 is always coated on the outer surface (lower semicircle) of the heat exchange tube with a big semicircle, so that the abnormal deformation possibility of the tube caused by punching is lower.

Wherein the punching opening 634 is provided at an end of the positioning core barrel 633 away from the chuck 73.

In this way, in the whole conveying and stamping process, the heat exchange tube clamped by the chuck 73 is fed towards the positioning device 63, and the stamped tube section is directly fed out of the positioning device 63, so that the clamping stagnation of the stamped tube section in the positioning core barrel 633 due to stamping deformation is avoided.

Wherein, the positioning main body 631 is detachably connected with the working table 64 through a connecting bottom plate 635.

Like this, be convenient for maintain the change, improve the suitability so that can be applied to the processing of more different pipe diameter heat exchange tubes.

During implementation, the stamping head 62 is also simple in structural form, a steel bar made of a suitable metal material can be used, one end of the steel bar is processed into a hemispherical shape and can be used as a stamping end, the other end of the steel bar is connected with the movable portion 61, the other end of the steel bar can be directly inserted into a blind hole formed in the lower surface of the movable portion 61, and the blind hole is located by a transversely inserted bolt. If the punching head 62 has the anti-rotation requirement, square steel is selected, and the corresponding blind hole in the movable part 61 is a square hole, which can be applied to the dimpled heat exchange tube of which the spherical recess is customized to be elliptical and the long and short axis directions are required.

When the device is used, the connecting substrate 75 is firstly manually dragged to the rearmost, one end of the heat exchange tube is clamped by the chuck 73 (by using the device, the processing length of the heat exchange tube can reach nine meters), the other end of the heat exchange tube can slidably pass through the positioning core barrel 633 of the positioning device 63, the heat exchange tube is in a horizontal state, a motor for starting the stamping mechanism 6 starts stamping, the stamping head 62 is positioned right above the stamping opening 634, the stamping head 62 falls down and stamps the heat exchange tube in the positioning core barrel 633 through the stamping opening 634, the heat exchange tube is stamped at the highest point of the heat exchange tube, namely the position right above an axis, after one stamping action is sensed by a sensor arranged on the stamping mechanism 6, the sensor transmits a signal to the controller, and controls the first stepping motor and the second stepping motor to rapidly rotate for a certain angle according to a design value respectively through the controller, correspondingly, the heat exchange tube clamped on the chuck 73 rotates for a certain angle according to the design circumferential direction, and the The mechanism 6 feeds a certain length to complete the feeding action, after the secondary feeding action is completed, the stamping head 62 falls down again to perform stamping once, the rotation of the crank is not stopped in the whole process, namely the up-and-down reciprocating action of the stamping head 62 is continuous, when the secondary feeding action is completed before the stamping head 62 is lifted and falls down again to perform stamping, the continuous action is performed, the continuous processing of the T-cell heat exchange tube is performed, the T-cell section with the required length (which is required to be less than the equipment stroke) is processed and then stopped, the chuck 73 is loosened, and the heat exchange tube is drawn out from the front of the positioning device 63.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims (4)

1. The heat exchange tube processing equipment comprises a stamping mechanism; the method is characterized in that: the stamping mechanism comprises a movable part which is in a crank slider transmission mode and can vertically slide in a reciprocating mode, a working table is arranged below the movable part, the lower surface of the movable part is connected with a replaceable single stamping head, and a positioning device is arranged on the upper surface of the working table and used for stabilizing the heat exchange tube when the stamping head stamps the heat exchange tube downwards along with the movable part.

2. The heat exchange tube processing apparatus as recited in claim 1, wherein: the positioning device comprises a positioning main body, wherein a mounting hole is formed in the positioning main body, a positioning core barrel is detachably mounted in the mounting hole so as to penetrate into the heat exchange tube, a punching opening is formed in the positioning core barrel, the positioning main body is provided with an abdicating opening completely exposed out of the punching opening so that a punching head can pass through the punching opening to punch the heat exchange tube in the positioning core barrel, and the punching opening is a sector opening in the circumferential direction of the positioning core barrel and has an opening angle ranging from 90 degrees to 120 degrees.

3. The heat exchange tube processing apparatus as recited in claim 2, wherein: the stamping opening is arranged at one end of the heat exchange tube in the feeding direction after stamping on the positioning core barrel.

4. The heat exchange tube processing apparatus as recited in claim 2, wherein: the positioning main body is detachably connected with the working table top through a connecting bottom plate.

Images