An automatic fin tube threading device and a fin tube threading method

Abstract

The present invention provides an automatic fin tube threading device and a fin tube threading method, which relate to the technical field of air conditioners and solve the technical problems of difficult employment, shortage of personnel and quality hazards in the production process. The automatic fin tube threading device is arranged below the discharge port of the fin processing equipment and includes a blanking rotation mechanism, a fin receiving mechanism, a fin bearing mechanism, a straightening mechanism, a guide head and a guiding picking and placing mechanism. After the fins are processed, they are automatically threaded onto the copper tubes under the action of gravity; the fin tube threading method includes device installation, copper tube centering, automatic tube threading and material taking. The present invention is used for automatic tube threading of long U-tubes and fins, and has the characteristics of convenient and smooth threading, high efficiency and high automation level.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an automatic fin tube threading device and a fin tube threading method. Background Art

[0002] Air conditioners are mainly composed of four major parts (evaporator, condenser, capillary tube, compressor). Among these four major parts, the most important materials used in the production process of evaporators and condensers are evaporator and condenser components. The production of evaporator and condenser components is mainly composed of fins and copper tubes. The copper tubes and fins are produced separately, and then the fins are threaded at the same position after transportation. The long U tube is inserted into the fins. The threading process is the bottleneck of the entire air conditioning industry. Taking the current production and processing output of 20,000 sets per day as an example, that is, 20,000 evaporators and 20,000 condensers are produced every day, which requires a lot of manpower to thread the tubes (900 tubes per person per day for both devices), and during the threading process, employees will bend down twice to hold the fins, which means they will bend down 1,800 times, which is labor-intensive and has a low degree of automation. In addition, the fins and copper tubes are damaged during transportation due to thin wall thickness, which makes the copper tubes unable to normally penetrate the fins or the fins are worn out, affecting the performance of the whole machine, and ultimately leads to low threading efficiency and serious quality risks. Summary of the invention

[0003] The purpose of the present invention is to provide an automatic fin tube threading device and a fin tube threading method to solve the technical problems existing in the prior art of high labor intensity, high labor cost and great quality risks in the production process of the tube threading process.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] The present invention provides an automatic fin tube threading device, which is arranged below the discharge port of fin processing equipment, and comprises a blanking rotating mechanism and a fin receiving mechanism. A plurality of copper tubes are fixed on the fin receiving mechanism. The blanking rotating mechanism is transmission-connected to the fin receiving mechanism, and can drive the fin receiving mechanism to switch between a receiving position and a feeding position. When the fin receiving mechanism is located at the receiving position, the center of all the copper tubes thereon is aligned with the center of the fin, and the processed fin is automatically inserted into the copper tube under the action of gravity.

[0006] As a further improvement of the present invention, the blanking rotating mechanism includes a first motor, a vibrator and a rotating horizontal plate. The first motor is connected to the rotating horizontal plate through the vibrator, driving the rotating horizontal plate to rotate in the horizontal direction, so that the fin material receiving mechanism moves to the material receiving position below the discharge port, or moves to the feeding position away from the discharge port; the fin material receiving mechanism is fixed on the rotating horizontal plate.

[0007] As a further improvement of the present invention, the number of fin feeding mechanisms is two sets, which are respectively arranged at both ends of the rotating cross plate.

[0008] As a further improvement of the present invention, the fin feeding mechanism includes a limit bottom plate and a positioning base. A plurality of fixing grooves are evenly formed on the limit bottom plate, the positioning base is placed in each fixing groove, and the bottom of the copper tube is fixedly positioned in the positioning base in a limited manner.

[0009] As a further improvement of the present invention, the fin automatic pipe threading device further includes a fin load-bearing mechanism that can lift and lower in the vertical direction to slowly sleave the falling fins onto the copper tube; in the initial state, the fin load-bearing mechanism is located on top of the fin feeding mechanism, and when the number of falling fins increases, the fin load-bearing mechanism descends in an intermittent or continuous manner.

[0010] As a further improvement of the present invention, the fin load-bearing mechanism includes a load-bearing column, a load-bearing screw nut assembly, and a load-bearing frame. The load-bearing column is fixed on the blanking rotating mechanism and is located outside the fin feeding mechanism, and the load-bearing frame is located inside the fin feeding mechanism and is connected to the load-bearing column through the load-bearing screw nut assembly.

[0011] As a further improvement of the present invention, the fin automatic pipe threading device further includes a straightening mechanism arranged on the fin feeding mechanism for correcting the concentricity of the copper tube. When the number of falling fins increases, the straightening mechanism descends in an intermittent or continuous manner.

[0012] As a further improvement of the present invention, the straightening mechanism includes a positioning block, a straightening screw nut assembly, a vertical guiding block, a clamping assembly, and a straightening driving module. The vertical guiding blocks are arranged on opposite sides of the blanking rotating mechanism, the positioning block is attached to the outside of the vertical guiding block and is connected to the blanking rotating mechanism through the straightening screw nut assembly; the clamping assembly is connected to the positioning block through the straightening driving module, and a number of pipe clamping positions are arranged on the clamping assembly to simultaneously clamp and fix multiple copper tubes.

[0013] As a further improvement of the present invention, the number of the clamping assemblies is at least one set; when the number of the clamping assemblies is multiple sets, all the clamping assemblies are arranged in multiple rows along the length direction of the positioning block, and each row of the clamping assemblies includes at least two sets of the clamping assemblies arranged at intervals in the vertical direction; all rows of the clamping assemblies are driven by one set of the straightening driving module to achieve synchronous linkage, or each row of the clamping assemblies is driven by one set of the straightening driving module to achieve independent movement of multiple rows.

[0014] As a further improvement of the present invention, the automatic fin tube-threading device further comprises a material guide head, which is detachably placed at the tube mouth of the copper tube to guide the fin when it is inserted.

[0015] As a further improvement of the present invention, it also includes a guide pick-up and placement mechanism that can be raised and lowered and moved horizontally at the feeding position, and the guide pick-up and placement mechanism includes a load-bearing plate frame, a support column connected to the bottom of the load-bearing plate frame through a guide screw nut assembly, a guide clamping device installed in the load-bearing plate frame, a guide drive module arranged on the load-bearing plate frame and transmission connected to the guide clamping device, and a yield drive module arranged on the load-bearing plate frame and transmission connected to the guide drive module.

[0016] As a further improvement of the present invention, the material guide head includes a lower section and a middle section, the lower section is a cylindrical structure that can be inserted into the copper tube, and the middle section is a cylindrical structure with a specification larger than the lower section; the middle section is also provided with an inwardly recessed groove along the circumferential direction, and the guiding and placing mechanism clamps the material guide head by being clamped in the groove; a conical guide head is provided on the top of the middle section; and it also includes a flexible curtain suspended on the upper part of the middle section and the end of which extends to the groove.

[0017] As a further improvement of the present invention, the barrier curtain is made of silicone material.

[0018] As a further improvement of the present invention, the guide picking and placing mechanism includes a load-bearing plate frame, a support column connected to the bottom of the load-bearing plate frame through a guide screw nut assembly, a guide clamping device installed in the load-bearing plate frame and facing the copper tube in the fin receiving mechanism, and a guide driving module arranged on the load-bearing plate frame and transmission connected to the guide clamping device.

[0019] As a further improvement of the present invention, the guide clamping device includes a first clamping rod and a second clamping rod arranged opposite to each other, and the first clamping rod and the second clamping rod are both provided with protrusions adapted to the slot. The guide driving module includes a first guide module and a second guide module respectively connected to the first clamping rod and the second clamping rod in transmission, and the first guide module and the second guide module can drive the first clamping rod and the second clamping rod to rotate; when the protrusions are opposite to each other, a clamping state of the guide head is formed.

[0020] As a further improvement of the present invention, the guide clamping devices are provided in multiple sets in parallel; each set of the guide clamping devices is transmission-connected to a set of the guide drive modules, or all sets of the guide clamping devices are transmission-connected to a set of the guide drive modules.

[0021] A fin tube-piercing method provided by the present invention includes a fin automatic tube-piercing device, and the fin automatic tube-piercing device includes a blanking rotation mechanism, a fin receiving mechanism, a straightening mechanism, a fin load-bearing mechanism, a guide head, and a guiding picking and placing mechanism. The specific steps are as follows:

[0022] Step 100, device installation: Install the blanking rotation mechanism under the punching press according to the installation position of the fin processing punching press, then install the fin receiving mechanism on the blanking rotation mechanism, install the straightening mechanism inside the fin receiving mechanism, then install the fin load-bearing mechanism on the blanking rotation mechanism, and fix the guiding picking and placing mechanism to one end of the blanking rotation mechanism according to the installation position of the blanking rotation mechanism;

[0023] Step 200, copper tube centering: Fix the copper tube to the fin receiving mechanism and use the straightening mechanism to clamp the copper tube to keep it concentric with the center of the fin. Control the guiding clamping mechanism to move above the copper tube, and release the guide head located thereon so that the guide head falls into the copper tube for material receiving;

[0024] Step 300, automatic tube piercing: Control the blanking rotation mechanism to rotate, so that the fin receiving mechanism moves to the material receiving position under the punching press, align the centers of all copper tubes with the center of the fin, control the vibrator in the blanking rotation mechanism to start working, and after the fins are processed, they automatically fall under the action of gravity. First, they penetrate into the guide head and are then guided into the copper tube, and then contact the fin load-bearing mechanism. As more fins are penetrated, the fin load-bearing mechanism and the straightening mechanism continuously descend to ensure that the required number of fins are automatically penetrated into the copper tube;

[0025] Step 400, material taking: After all the fins are penetrated, control the blanking rotation mechanism to rotate so that the fin receiving mechanism moves away from the punching press to the material receiving position. The guiding picking and placing mechanism moves downward to take away the guide head located at the top of the copper tube, then moves upward and then horizontally to make way. Control the straightening mechanism to release the copper tube, and manually pull out the copper tube with the fins penetrated upward. One cycle is completed, enter the next cycle, and repeat steps 200-400.

[0026] The present invention has the following beneficial effects compared with the prior art:

[0027] The fin automatic tube-piercing device provided by the present invention is arranged below the fin discharge port. By fixing the long U-shaped tube on the fin receiving mechanism and keeping the center of the copper tube aligned with the center of the fin, the fins directly fall into the long U-shaped tube under the action of gravity, thus replacing manual tube piercing, realizing the integrated production of the two-component assembly, saving manpower, reducing production costs, avoiding a large number of manual configurations, and also reducing the quality hidden dangers in the production process.

[0028] In a further embodiment of the present invention, an orthopedic mechanism is used to fix and correct the long U-shaped copper tubes, ensuring that all long U-shaped tubes are in the same direction, preventing the fins from falling into the copper tubes and causing eccentricity. This not only enables smooth tube threading but also ensures that the copper tubes do not deform. By designing a feeding head, the center of the fin die hole is coaxial with the center of the long U-shaped tube nozzle, improving the fin blanking efficiency. By setting a curtain made of soft silicone on the feeding head, it ensures that the fins can fall smoothly through the feeding head without being stuck by the grooves on the feeding head. By designing a vibrator to form micro-vibrations on the device, it ensures the smooth falling of the fins. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] Figure 1 is a schematic structural diagram of the fin automatic tube threading device of the present invention;

[0031] Figure 2 is a cross-sectional view of the blanking rotation mechanism in the fin automatic tube threading device of the present invention;

[0032] Figure 3 is a schematic structural diagram of the fin receiving mechanism and the orthopedic mechanism in the fin automatic tube threading device of the present invention;

[0033] Figure 4 is a top view of the fin automatic tube threading device of the present invention when the clamping assembly clamps the copper tube;

[0034] Figure 5 is a front view of the fin automatic tube threading device of the present invention when the clamping assembly clamps the copper tube;

[0035] Figure 6 is a front view of the fin automatic tube threading device of the present invention when the clamping assembly releases the copper tube;

[0036] Figure 7 is a top view of the fin automatic tube threading device of the present invention when the clamping assembly releases the copper tube;

[0037] Figure 8 is a partial enlarged view of the orthopedic mechanism in the fin automatic tube threading device of the present invention;

[0038] Figure 9 is a schematic structural diagram of the fin load-bearing mechanism in the fin automatic tube threading device of the present invention;

[0039] Figure 10It is a structural schematic diagram of the guide and placing mechanism in the automatic fin tube threading device of the present invention;

[0040] Figure 11 It is a structural diagram of the fin automatic tube-threading device of the present invention when the blanking rotating mechanism and part of the fin receiving mechanism are installed together;

[0041] Figure 12 It is a schematic diagram of the structure when each driving module in the automatic fin tube threading device of the present invention uses a gear set to turn;

[0042] Figure 13 It is a schematic diagram of the transmission structure of the orthopedic drive module in the automatic fin tube threading device of the present invention;

[0043] Figure 14 It is a schematic diagram of the connection structure between the support column and the guide screw nut assembly in the automatic fin tube threading device of the present invention;

[0044] Figure 15 It is a side view of the material guide head and the guide pick-up and place mechanism in the automatic fin tube threading device of the present invention when they are connected together;

[0045] Figure 16 It is a front view of the material guide head and the guide pick-up and place mechanism in the automatic fin tube threading device of the present invention when they are connected together;

[0046] Figure 17 It is a structural schematic diagram of the material guide head in the automatic fin tube threading device of the present invention.

[0047] In the figure, 1, blanking rotating mechanism; 11, first motor; 12, vibrator; 13, rotating horizontal plate; 2, fin receiving mechanism; 21, limiting bottom plate; 22, positioning base; 3, fin load-bearing mechanism; 31, load-bearing column; 32, load-bearing screw nut assembly; 33, load-bearing frame; 4, orthopedic mechanism; 41, positioning block; 42, orthopedic screw nut assembly; 43, vertical guide block; 44, clamping assembly; 45, orthopedic drive module; 5, material guide head; 6, guide pick-up and place mechanism; 61, load-bearing plate frame; 62, guide screw nut assembly; 63, support column; 64, guide clamping device; 65, guide drive module; 66, give way drive module; 100, copper tube; 200, punch press. DETAILED DESCRIPTION

[0048] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0049] like Figure 1As shown, the present invention provides an automatic fin tube threading device, which is arranged below the discharge port of the fin processing equipment. The following is a specific description taking the fin processing equipment as a punch press 200 as an example. The processed fins are strip plate structures, and circular holes are punched on the plate at fixed intervals for penetrating into the long U-shaped copper tubes through the circular holes. In the present invention, the centers of all fins are the centers of the punched circular holes. Specifically, the automatic fin tube threading device includes a blanking rotating mechanism 1 and a fin receiving mechanism 2. The copper tube 100 is U-shaped, and a plurality of copper tubes 100 are fixed on the fin receiving mechanism 2. The blanking rotating mechanism 1 is transmission-connected with the fin receiving mechanism 2, and can drive the fin receiving mechanism 2 to switch between the receiving position and the feeding position. When the fin receiving mechanism 2 is at the receiving position, the centers of all the copper tubes 100 thereon are aligned with the centers of the fins, and the processed fins are automatically penetrated into the copper tube 100 under the action of gravity.

[0050] It should be noted that the receiving position is located below the punch press 200, where the centers of all the copper tubes 100 are directly opposite to the centers of the circular holes on the fins; the feeding position is the position where the copper tubes 100 can be taken out after leaving the punch press 200. Figure 1 In the middle, it is at a 180-degree angle to the receiving position.

[0051] like Figure 2 As shown, as an optional embodiment of the present invention, the blanking rotating mechanism 1 includes a first motor 11, a vibrator 12 and a rotating horizontal plate 13. The first motor 11 is vertically arranged and fixed on the ground, and is connected to the rotating horizontal plate 13 through the vibrator 12. When the first motor 11 rotates, it can drive the rotating horizontal plate 13 to rotate in the horizontal direction, so that the fin material receiving mechanism 2 moves to the material receiving position below the discharge port, or moves to the feeding position away from the discharge port; the fin material receiving mechanism 2 is fixed on the rotating horizontal plate 13.

[0052] In order to improve the working efficiency, in the present invention, there are two sets of fin receiving mechanisms 2, which are respectively arranged at both ends of the rotating horizontal plate 13. Through this structural arrangement, when one set of fin receiving mechanisms 2 receives the material and passes the pipe, the other set can perform the pipe taking or placing operation, which greatly improves the working efficiency.

[0053] like Figure 3 As shown, as an optional embodiment of the present invention, the fin material receiving mechanism 2 includes a limiting bottom plate 21 and a positioning base 22. The limiting bottom plate 21 is evenly provided with a plurality of fixing grooves, and the positioning base 22 is placed in each fixing groove. The bottom of the copper tube 100 is fixed in the positioning base 22 in a limiting manner. It should be noted that the limiting bottom plate 21 is fixed to the rotating horizontal plate 13 by screws, and a long U-shaped copper tube 100 is fixed in each positioning base 22.

[0054] like Figure 3 and Figure 11As shown, specifically, the positioning base 22 is a hollow cylindrical structure with an elliptical cross-section. The fixing groove is also an elliptical structure, and the cross-section of the inner cavity of the positioning base 22 is also an elliptical structure. The bottom of the positioning base 22 is inserted into the fixing groove. It should be noted that in this embodiment, the outer wall of the positioning base 22 can be a stepped structure, with a smaller bottom specification inserted into the fixing groove. The bottom of the copper tube 100 is snapped into the inner cavity of the positioning base 22, thereby fixing the copper tube 100 in a vertical state.

[0055] Alternatively, the following technical solution can also be adopted. The positioning base 22 is a solid structure. The bottom of the positioning base 22 is inserted into the fixing groove. A stepped groove recessed downward is provided at the top of the positioning base 22, including a first groove and a second groove. The depth of the second groove is greater than that of the first groove and is located in the middle of the bottom of the first groove. The lowest end of the bent portion of the copper tube 100 is snapped into the second groove.

[0056] As Figure 9 shown, as an alternative embodiment of the present invention, the fin automatic tube threading device further includes a fin load-bearing mechanism 3 that can move up and down in the vertical direction to slowly sleeved the falling fins onto the copper tube 100. In the initial state, the fin load-bearing mechanism 3 is located on top of the fin receiving mechanism 2. When the number of falling fins increases, the fin load-bearing mechanism 3 descends in an intermittent or continuous manner. Through the fin load-bearing mechanism 3, it is possible to prevent the fins from directly falling to the bottom of the copper tube 100 through the discharge port, reduce the falling distance, and play a role in buffering the fall during the fin tube threading process. This not only avoids impact on the copper tube 100 due to the fall and prevents deformation of the copper tube 100, but also reduces damage to the fins.

[0057] Furthermore, the fin load-bearing mechanism 3 includes a load-bearing column 31, a load-bearing screw-nut assembly 32, and a load-bearing frame 33. The load-bearing column 31 is fixed on the blanking rotation mechanism 1 and is located outside the fin receiving mechanism 2. The load-bearing frame 33 is located inside the fin receiving mechanism 2 and is connected to the load-bearing column 31 through the load-bearing screw-nut assembly 32.

[0058] It should be noted here that the load-bearing screw-nut assembly 32 includes a motor, a lead screw, and a nut. This part is a product of the prior art and will not be elaborated here. When the motor rotates, it drives the lead screw to rotate. The rotation of the lead screw drives the nut to move up and down, and the up and down movement of the nut drives the load-bearing frame 33 to move up and down. It should be noted here that the length of the load-bearing frame 33 is equal to or less than the length of the fins, so that the fins can fall onto the load-bearing frame 33 when they fall.

[0059] As Figure 3 and Figure 8 shown, as an alternative embodiment of the present invention, the fin automatic tube threading device further includes an orthopedic mechanism 4 arranged on the fin receiving mechanism 2 for correcting the concentricity of the copper tube 100. When the number of falling fins increases, the orthopedic mechanism 4 descends in an intermittent or continuous manner.

[0060] It should be noted here that the orthopedic mechanism 4 can descend at the same rate as the load-bearing frame 33, thereby realizing the continuous pipe threading of the fins.

[0061] Furthermore, the orthopedic mechanism 4 includes a positioning block 41, an orthopedic screw-nut assembly 42, a vertical guide block 43, a clamping assembly 44, and an orthopedic drive module 45. The vertical guide blocks 43 are arranged on opposite sides of the blanking rotating mechanism 1. The vertical guide blocks 43 are of plate-like structure, and openings for the orthopedic drive module 45 to pass through are provided in the vertical direction on the plate surface. The positioning block 41 is attached to the outside of the vertical guide block 43 and is connected to the blanking rotating mechanism 1 through the orthopedic screw-nut assembly 42; the clamping assembly 44 is connected to the positioning block 41 through the orthopedic drive module 45, and a number of pipe clamping positions are provided on the clamping assembly 44 to clamp and fix multiple copper pipes 100 at the same time.

[0062] Specifically, the orthopedic screw-nut assembly 42 can also be implemented by using products in the prior art, such as a motor, a lead screw, and a nut. The lower end of the lead screw is rotatably arranged on the rotating cross plate 13, the motor is fixed on the vertical guide block 43 and is drivingly connected to the upper end of the lead screw, and the nut is fixed on the positioning block 41. The orthopedic drive module 45 is fixed in the positioning block 41 and is drivingly connected to the clamping assembly 44 after passing through the opening, and can drive the clamping assembly 44 to switch between clamping and loosening, so as to realize the clamping and loosening of the copper pipe 100.

[0063] Such as Figure 12 and Figure 13As shown, further, the number of clamping assemblies 44 is at least one set; when the number of clamping assemblies 44 is multiple sets, all the clamping assemblies 44 are divided into multiple rows along the length direction of the positioning block 41, and each row of clamping assemblies 44 includes at least two sets of clamping assemblies 44 arranged at intervals along the vertical direction; that is, multiple rows of clamping assemblies 44 are arranged side by side on the fin receiving mechanism 2, and multiple rows of copper tubes 100 can be clamped and corrected; and each copper tube 100 is clamped and corrected at different positions from bottom to top through multiple sets of clamping assemblies 44. All rows of clamping assemblies 44 are driven by a set of orthopedic drive modules 45 to achieve synchronous linkage. When this structure is adopted, when the orthopedic drive module 45 is running, all clamping assemblies 44 are driven to act together, that is, different rows of copper tubes 100 can be clamped or loosened at the same time. This structure is relatively simple, but the applicability is poor. In order to improve the applicability, the following technical scheme can also be adopted. Each row of clamping assemblies 44 is driven by a set of orthopedic drive modules 45 to achieve multiple rows of independent movement. In other words, if three rows of clamping assemblies 44 are set, three sets of orthopedic drive modules 45 are set, and each set of orthopedic drive modules 45 controls the movement of one row of clamping assemblies 44, thereby achieving independent control of each row of copper tubes 100. However, this scheme has the disadvantage of a relatively complex structure. It is also possible to adopt a set of orthopedic drive modules 45 to drive all rows of the same-layer clamping assemblies 44. These three implementation schemes can be selected and used according to actual needs.

[0064] like Figures 4 - 7 As shown, as an optional embodiment of the present invention, the clamping assembly 44 includes a first clamping plate and a second clamping plate arranged opposite to each other, and the first clamping plate and the second clamping plate are respectively provided with an arc-shaped clamping tube portion, specifically, the arc-shaped clamping tube portion is an arc-shaped inwardly concave; the orthopedic driving module 45 includes a first orthopedic module and a second orthopedic module respectively connected to the first clamping plate and the second clamping plate to control the rotation of the two.

[0065] Specifically, when in use, the first orthopedic module drives the first splint to rotate, and the second orthopedic module drives the second splint to rotate. The two splints rotate in opposite directions, one counterclockwise and the other clockwise. The first orthopedic module and the second orthopedic module are respectively arranged at both ends of the splint, and the rotating shaft positions of the first splint and the second splint are eccentric positions, so that when the arc-shaped clamping tube parts on the two splints are facing downward, the distance between the two splints is greater than the outer diameter of the copper tube 100, and when the arc-shaped clamping tube parts of the two splints are facing each other, the specifications are equal to the outer diameter of the copper tube 100.

[0066] like Figure 12 and Figure 13As shown, specifically, the orthopedic drive module 45 includes an orthopedic motor and a 90-degree steering gear set, the orthopedic motor is fixed in the positioning block 41, one end of the 90-degree steering gear set is connected to the orthopedic motor, and the other end is connected to the first clamp or the second clamp. The 90-degree steering gear set referred to here is a gear set composed of two 45-degree bevel gears meshing, and a 90-degree steering direction is achieved through the gear set; of course, other structures can also be used to achieve the rotation of the clamp, for example, the orthopedic drive module 45 can include an electromagnetic coil, the electromagnetic coil is arranged beside the clamp, the connection between the clamp and the positioning block 41 is a rotating shaft, and a torsion spring is arranged on the rotating shaft. When rotation is required, the electromagnetic coil can be energized, and the energized electromagnetic coil uses magnetic force to attract the clamp column.

[0067] Specifically, the automatic fin tube-threading device further comprises a material guide head 5, which is detachably placed at the tube mouth of the copper tube 100 to guide the fin when it is inserted.

[0068] As an optional embodiment of the present invention, it also includes a guide pick-up and placement mechanism 6 arranged at the feeding position, which can perform vertical lifting and horizontal movement to complete the pick-up and placement action of the guide head 5 at the copper tube mouth and make room for space.

[0069] like Figure 10 , Figure 14 As shown, specifically, the guide picking and placing mechanism 6 includes a load-bearing plate frame 61, a support column 63 connected to the bottom of the load-bearing plate frame 61 through a guide screw nut assembly 62, a guide clamping device 64 installed in the load-bearing plate frame 61 and facing the copper tube 100 in the fin receiving mechanism 2, a guide driving module 65 arranged on the load-bearing plate frame 61 and transmission connected to the guide clamping device 64, and a yield driving module 66 arranged on the load-bearing plate frame 61 and transmission connected to the guide driving module 65.

[0070] like Figures 15 - 17 As shown, specifically, the material guide head 5 includes a lower section and a middle section, the lower section is a cylindrical structure that can be inserted into the copper tube 100, and the middle section is a cylindrical structure with a larger specification than the lower section; the middle section is also provided with an inwardly recessed card slot along the circumferential direction, and the guide pick-up and release mechanism 6 is clamped in the card slot to achieve the clamping of the material guide head 5; a conical guide head is provided at the top of the middle section; and a flexible curtain is also included that is suspended at the upper part of the middle section and the end of which extends to the card slot. It should be noted here that the end of the card slot is an arc transition structure to prevent the guide pick-up and release mechanism 6 from interfering and getting stuck when it moves relative to the card slot.

[0071] It should also be noted that the maximum specifications of the guide head and the maximum specifications of the middle section are equal to the diameter of the circular hole on the fin.

[0072] Specifically, the blocking curtain is made of silicone material. The blocking curtain blocks the slot on the middle section of the material guide head 5 so that the fin will not be stuck in the slot when it falls, and the flexible silicone material can make the guide pick-and-place mechanism 6 clamp the middle section of the material guide head 5 and be able to be stuck in the slot.

[0073] As an optional embodiment of the present invention, the guide clamping device 64 includes a first clamping rod and a second clamping rod arranged opposite to each other, and the first clamping rod and the second clamping rod are both provided with protrusions adapted to the card slot. The guide driving module 65 includes a first guide module and a second guide module respectively connected to the first clamping rod and the second clamping rod in transmission, and the first guide module and the second guide module can drive the first clamping rod and the second clamping rod to rotate; when the protrusions are opposite to each other, a clamping state of the guide head 5 is formed.

[0074] It should be noted that the first guide module and the second guide module are respectively located at both ends of the clamping rod, and the two clamping rods are arranged opposite to each other, the first guide module is connected to all the first clamping rods, and the second guide module is connected to all the second clamping rods. The first clamping rod and the second clamping rod can be driven to rotate in opposite directions at the same time through the guide drive module 65.

[0075] Specifically, the guide drive module 65 includes a guide motor and a 90-degree guide gear set, the guide motor is fixed in the load-bearing plate frame 61, one end of the 90-degree guide gear set is connected to the guide motor, and the other end is connected to the first clamping rod or the second clamping rod; or, the guide drive module includes an electromagnetic coil located next to the first clamping rod or the second clamping rod. It should be noted here that the structure of the guide drive module 65 and the structure of the orthopedic drive module 45 can be the same, both of which are two kinds of implementation methods, which will not be described in detail here.

[0076] Furthermore, the yielding drive module 66 includes a motor, a screw and a nut. The motor is fixed on the load-bearing plate frame 61, the screw is connected to the motor output shaft, the nut is screwed on the screw, and the yielding drive module 66 is divided into two sets, which are respectively arranged on the opposite sides of the load-bearing plate frame 61. The first guide module and the second guide module are both fixed on the nut. The yielding drive module 66 can drive the guide drive module 65 and the guide clamping device 64 to move horizontally to make room for the top space of the copper tube 100 and make space so that when the copper tube is pulled out, it will not interfere with the guide pick-up and release mechanism 6.

[0077] Furthermore, there are multiple sets of guiding and clamping devices 64, which are arranged side by side. Further, the number of guiding and clamping devices 64 is equal to the number of rows of the clamping assemblies 44, and each set of guiding and clamping devices 64 corresponds to one row of clamping assemblies 44; the number of pairs of protrusions on each set of guiding and clamping devices 64 is equal to the number of pairs of arc-shaped pipe clamping parts in the clamping assemblies 44; each set of guiding and clamping devices 64 is in transmission connection with a set of guiding drive modules 65, or all sets of guiding and clamping devices 64 are in transmission connection with a set of guiding drive modules 65. The two transmission structures here can also be the same as the connection structure between the orthopedic drive module 45 and the clamping assemblies 44 in the orthopedic mechanism 4.

[0078] Furthermore, to prevent interference between the rotating cross plate 13 and the support column 63 when the rotating cross plate 13 rotates, in the present invention, there are three support columns 63, which are respectively located at the bottoms of the three sides of the load-bearing plate frame 61 away from the punching press 200, and the support columns 63 on the opposite sides also deviate towards the third support column 63, thereby forming more space at the bottom to facilitate the rotation of the rotating cross plate 14.

[0079] The present invention provides a fin tube-piercing method, which includes a fin automatic tube-piercing device. The fin automatic tube-piercing device includes a blanking rotation mechanism 1, a fin receiving mechanism 2, an orthopedic mechanism 4, a fin load-bearing mechanism 3, a guiding head 5, and a guiding picking and placing mechanism 6, and specifically includes the following steps:

[0080] Step 100, device installation: Install the blanking rotation mechanism under the punching press according to the installation position of the fin processing punching press, then install the fin receiving mechanism on the blanking rotation mechanism, install the orthopedic mechanism inside the fin receiving mechanism, then install the fin load-bearing mechanism on the blanking rotation mechanism, and fix the guiding picking and placing mechanism to one end of the blanking rotation mechanism according to the installation position of the blanking rotation mechanism;

[0081] Step 200, copper tube centering: Fix the copper tube to the fin receiving mechanism and use the orthopedic mechanism to clamp the copper tube to keep it concentric with the center of the fin. Control the guiding picking mechanism to move above the copper tube, and release the guiding head located thereon so that the guiding head falls into the copper tube for material receiving;

[0082] Step 300, automatic tube-piercing: Control the blanking rotation mechanism to rotate, so that the fin receiving mechanism moves to the material receiving position under the punching press, align the centers of all copper tubes with the center of the fin, control the vibrator in the blanking rotation mechanism to start working, and after the fin processing is completed, it automatically drops under the action of gravity. First, it penetrates into the guiding head and is guided into the copper tube, then contacts the fin load-bearing mechanism. As more fins are penetrated, the fin load-bearing mechanism and the orthopedic mechanism continuously descend to ensure that the required number of fins are automatically penetrated into the copper tube;

[0083] Step 400, material taking: After all the fins are inserted, control the blanking rotation mechanism to rotate so that the fin receiving mechanism moves away from the punching machine to the receiving position. The guiding picking and placing mechanism moves downward to pick up the guiding head located at the top of the copper tube, then moves upward and then horizontally to make way. Control the straightening mechanism to release the copper tube, and manually pull out the copper tube with inserted fins upward. One cycle is completed, enter the next cycle, and repeat steps 200 - 400.

[0084] Further, the device installation in step 100 includes the following:

[0085] The fin automatic tube inserting device mainly consists of an overall blanking rotation mechanism 1, a fin receiving mechanism 2, a guiding head 5, a guiding picking and placing mechanism 6, a fin bearing mechanism 3, and a straightening mechanism 4, which cooperate with the existing punching machine to perform the fin automatic blanking and tube inserting process. According to the installation and positioning position of the punching machine 200, the overall blanking rotation mechanism 1 is installed and fixed on the ground according to the production requirement dimensions. Then, the fin bearing mechanism 3 is installed on the blanking rotation mechanism 1. Then, according to the installation position of the blanking rotation mechanism 1, the guiding picking and placing mechanism 6 is fixed on the ground according to the production dimensions to ensure that the guiding head 5 can smoothly fall into the copper tube 100 for material receiving during production. Then, the fin receiving mechanism 2 is fixed on the blanking rotation mechanism 1 through flat head screws for material receiving.

[0086] Among them, the assembly process of the blanking rotation mechanism 1:

[0087] The first motor 11 is connected and fixed to the vibration instrument 12 through screws, and the vibration instrument 12 is connected and fixed to the rotating cross plate 13 through screws. The entire blanking rotation mechanism 1 is installed. It rotates through the servo first motor 11 and vibrates slightly through the vibration instrument 12. The purpose of rotation is to ensure that after the fins completely fall into the copper tube 100, material receiving and material taking can be carried out simultaneously during the cycle to improve efficiency. The purpose of installing the vibration instrument 12 is to ensure that the fins can smoothly fall into the copper tube 100 (without contact) after falling onto the guiding head 5.

[0088] The assembly process of the fin receiving mechanism 2:

[0089] The copper tube positioning base 22 is inserted into the limit base plate 21, and the vertical guide block 43 is installed into the reserved position of the limit base plate 21. The rotating shaft in the clamping assembly 44 of the copper tube is installed with the clamping plate of the clamping assembly 44 by interference fit. Then, a helical gear in the 90-degree steering gear set in the orthopedic drive module 45 is fixed on the rotating shaft of the clamping assembly 44 with a positioning pin, and the main drive helical gear is installed on the helical gear rotating shaft with a positioning key, and the helical gear rotating shaft is installed in the positioning block 41 and connected to the motor. Then, the assembled clamping assembly 44 and the orthopedic drive module 45 are synchronously fixed to the vertical guide with the positioning block 41. Towards the block 43, the support screw in the vertical movement orthopedic screw nut assembly 42 is installed on the rotating cross plate 13 and the clamping rotating bevel teeth and the main transmission bevel gear are perfectly meshed to ensure transmission stability and accuracy. Then the vertical movement support screw and the positioning block 41 are assembled together to play a supporting role, and then the vertical movement support screw movement servo motor and the servo motor in the orthopedic drive module 45 are installed on the positioning block 41, and a fin auxiliary positioning groove is opened on the vertical guide block 43 to ensure that the copper tube and the fin in the upper part do not shake after the fin falls into the copper tube 100, thereby ensuring that the subsequent fins can fall into the copper tube smoothly.

[0090] Fin bearing mechanism 3 installation process:

[0091] The up and down moving screw is installed on the rotating cross plate 13, and then the load-bearing frame 33 is installed on the screw, and the servo motor is installed on the load-bearing frame 33 simultaneously. The purpose of the load-bearing frame 33 is to bear the fins to prevent the fins from being directly pressed on the clamping plate of the clamping assembly 44, which causes the clamping plate of the clamping assembly 44 to rotate after the fins are formed, causing interference with the fins, resulting in an inability to rotate or damage to the fins.

[0092] Note: The load-bearing frame 33 in the fin load-bearing mechanism 3 is installed in contact with the inner surface of the vertical guide block 43, and the width should not be too large to ensure that it falls synchronously with the number of fins falling, and can fall to the bottom smoothly without interfering with the U-tube positioning base 22.

[0093] Assembly process of guide pick-and-place mechanism 6:

[0094] Install it on the support column 63 in three directions respectively, install the supporting screw in the guide screw nut assembly 62 on the support column 63, and then install the load-bearing plate frame 61 on the supporting screw, fix the motor and screw in the yield drive module 66 on the load-bearing plate frame 61, screw the nut on the screw, fix the motor, rotating shaft, gear set, etc. in the guide drive module 65 on the nut, install the rotating shaft of the gear set with the guide clamping device 64 by interference fit, and finally place the guide head 5 on the guide clamping device 64. The load-bearing plate frame 61 is designed to be larger, in order to facilitate employees to enter to take the fins and discharge the copper pipes.

[0095] It should be noted that in the present invention, the motors used are all servo motors.

[0096] Action process:

[0097] Before starting the machine, the PLC program is used to control the movement of the yield drive module 66 in the guide pick-and-place mechanism 6, so that the guide clamping device 64 moves to the leftmost side of the load-bearing plate frame 61. Then, the PLC program is used to control the guide drive module 65 to operate and control the guide clamping device 64, so that a group of guide clamping devices 64 (the arc protrusions on the two clamping rods are opposite) are closed and positioned. Then, the employee enters the empty position of the load-bearing plate frame 61 and installs the guide head 5 on the guide clamping device 64 one by one. At the same time, the employee first installs the copper tubes 100 one by one on the positioning base 22 of the limit bottom plate 21, and then the employee exits the load-bearing plate frame 61. The heavy plate frame 61 controls the servo motor with a PLC program to rotate the rotating shaft, synchronously driving the helical gear to rotate, and through the meshing of two 45-degree helical gears, driving the two clamping plates in the clamping assembly 44 to rotate 90°, so that a set of arc grooves on the clamping assembly 44 relatively clamp the copper tube (the movement of the copper tube clamping assembly 44 is consistent with the transmission clamping rotation of the guide clamping device 64), and then controls the servo motor in the guide screw nut assembly 62 with a PLC program to move the entire load-bearing plate frame 61 downward, and stops moving when the guide head 5 is 20 mm away from the tube mouth of the copper tube 100, and then controls The motor and the lead screw in the yield drive module 66 move to make the guide clamping device 64 move horizontally, so that the guide head 5 and the copper pipe mouth are aligned, and then the motor in the guide drive module 65 is controlled by the PLC program to make the two clamping rods in the guide clamping device 64 rotate downward by 90° (two groups are synchronized), so that the guide head 5 falls into the copper pipe mouth. After the guide head 5 falls into the copper pipe mouth, the servo motor in the guide screw nut assembly 62 is controlled by the PLC program to make the entire load-bearing plate frame 61 move upward to ensure that when the blanking rotating mechanism 1 rotates, the fin material receiving mechanism 2 can be aligned with the guide pick-up and placement Mechanism 6 is staggered and will not interfere. After the fin receiving mechanism 2 can be staggered with the guide pick-up and placement mechanism 6, the first motor 11 is controlled to rotate the blanking rotation mechanism 1 180°, so that the center line of the guide head 5 coincides with the center of the fin forming mold hole on the punch 200 for positioning control to ensure that the fin can fall smoothly into the copper tube. When the fin begins to fall (the stepper motor delay control copper tube clamping assembly 44 in the orthopedic drive module 45 is expected to move 10mm downward every 30S), the vibrator 12 on the blanking rotation mechanism 1 starts to work, controlling the overall slight shaking to ensure that the fin can fall smoothly into the copper tube. The maximum cone diameter of the guide head 5 is the same as the specification of the copper tube mouth to avoid the guide head 5 and the copper tube mouth not matching the fin blanking card.After the fin falls into the fin positioning limit groove on the vertical guide block 43, it is expected that the vertical movement support screw rod of the copper tube clamping assembly 44 moving up and down every 30S will move, so that the clamping plate in the clamping assembly 44 moves to the next layer (6 sets of clamping assemblies 44 are evenly distributed along the entire length of the copper tube, the purpose is to ensure the positioning and correction of the copper tube, ensure that the fin falls in smoothly, and each layer of the clamping plate of the clamping assembly has a separate rotating screw rod and servo motor control), the synchronous fin load-bearing frame 33 is controlled by the stepper motor to move up and down with the load-bearing column 31 to ensure the fin Without contacting the clamping plates in the clamping assembly 44 (ensuring that the clamping plates of the clamping assembly 44 can rotate smoothly), after all the fins fall into the copper tube, the fins fall to a certain height to 50mm from the copper tube positioning base (the vertical guide block 43 is provided with a limited position ladder to limit the position of the fins for easy fin removal), and each layer of the clamping plates of the clamping assembly 44 is controlled by its own separate servo motor to rotate 90°, and the arc grooves of the clamping plates in each group of the clamping assembly 44 face downward, and then the vertical motion support wire in the orthopedic screw nut assembly 42 that moves up and down is used. The rod moves and all falls under the two sides of the copper tube positioning base 22, and the fin load-bearing frame 33 is synchronously unloaded to the upper surface of the clamping plate in the clamping assembly 44. After completion, the servo motor is turned to make the blanking rotating mechanism 1 rotate 180°, and the servo motor in the guide screw nut assembly 62 is controlled and operated by the PLC program, so that the entire guide clamping device 64 moves downward. When the guide clamping device 64 moves to the largest cone surface closest to the tip of the guide head, the motor in the guide drive module 65 is controlled and operated by the PLC program, so that the clamping rod in the guide clamping device 64 closes and clamps the guide head (for the next cycle), and then the guide screw nut assembly 62 is controlled and operated by the PLC program, so that the entire guide clamping device 64 moves upward, and then the motor in the make way drive module 66 is used to move the entire guide clamping device 64 to one end of the load-bearing plate frame 61 to make space, and then the employee enters the load-bearing plate frame 61 to take out the copper tube with the fins, a cycle is completed, and enters the next cycle.

[0098] First of all, it should be explained here that “inward” refers to the direction toward the center of the accommodating space, and “outward” refers to the direction away from the center of the accommodating space.

[0099] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positional relationships based on the attached Figure 1The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present invention.

[0100] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0101] In the present invention, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0102] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal level than the second feature.

[0103] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. An automatic fin tube threading device, characterized in that, It is arranged below the discharge port of the fin processing equipment, and includes a blanking rotating mechanism and a fin receiving mechanism. A plurality of copper tubes are fixed on the fin receiving mechanism. The blanking rotating mechanism is transmission-connected with the fin receiving mechanism, and can drive the fin receiving mechanism to switch between a receiving position and a feeding position. When the fin receiving mechanism is at the receiving position, the center of all the copper tubes on it is aligned with the center of the fin, and the processed fin is automatically inserted into the copper tube under the action of gravity. It also includes a guide head, which is detachably placed at the copper tube orifice to guide the fin when it is inserted; The automatic fin tube-threading device also includes a correction mechanism arranged on the fin material receiving mechanism for correcting the concentricity of the copper tube. When the number of fins dropped increases, the correction mechanism descends in an intermittent or continuous manner. It also includes a guide pick-up and place mechanism that can be lifted and moved horizontally at the feeding position, the guide pick-up and place mechanism including a load-bearing plate frame, a support column connected to the bottom of the load-bearing plate frame through a guide screw nut assembly, a guide clamping device installed in the load-bearing plate frame, a guide drive module that is arranged on the load-bearing plate frame and is transmission-connected to the guide clamping device, and a yield drive module that is arranged on the load-bearing plate frame and is transmission-connected to the guide drive module; The orthopedic mechanism comprises a positioning block, an orthopedic screw nut assembly, a vertical guide block, a clamping assembly and an orthopedic drive module. The vertical guide block is arranged on two opposite sides of the blanking rotating mechanism. The positioning block is attached to the outside of the vertical guide block and is connected to the blanking rotating mechanism through the orthopedic screw nut assembly; the clamping assembly is connected to the positioning block through the orthopedic drive module, and a plurality of pipe clamping positions are arranged on the clamping assembly to clamp and fix multiple copper pipes at the same time; The material guide head comprises a lower section, a middle section and an upper section, wherein the lower section is a cylindrical structure that can be inserted into the copper tube, and the middle section is a cylindrical structure with a specification larger than that of the lower section; the middle section is also provided with an inwardly recessed card slot along the circumferential direction, and the guide pick-up and put mechanism can clamp the material guide head by being clamped in the card slot; a conical guide head is provided at the top of the middle section; and a flexible curtain is also provided that is suspended on the upper part of the middle section and whose end extends to the card slot; The guide clamping device includes a first clamping rod and a second clamping rod which are arranged opposite to each other, and the first clamping rod and the second clamping rod are both provided with protrusions which are adapted to the card slot. The guide driving module includes a first guide module and a second guide module which are respectively connected to the first clamping rod and the second clamping rod in a transmission manner, and the first guide module and the second guide module can drive the first clamping rod and the second clamping rod to rotate; when the protrusions are opposite to each other, a clamping state of the guide head is formed.

2. The fin automatic tube threading device according to claim 1, characterized in that, The blanking rotating mechanism includes a first motor, a vibrator and a rotating transverse plate. The first motor is connected to the rotating transverse plate through the vibrator, driving the rotating transverse plate to rotate in the horizontal direction, so that the fin material receiving mechanism moves to the material receiving position below the discharge port, or moves to the feeding position away from the discharge port; the fin material receiving mechanism is fixed on the rotating transverse plate; the number of the fin material receiving mechanisms is two sets, which are respectively arranged at both ends of the rotating transverse plate.

3. The fin automatic tube threading device according to claim 1, characterized in that The fin material receiving mechanism comprises a limiting bottom plate and a positioning base, a plurality of fixing grooves are evenly opened on the limiting bottom plate, the positioning base is placed in the fixing grooves, and the bottom of the copper tube is fixed in the positioning base in a limiting manner.

4. The fin automatic tube threading device according to any one of claims 1-3, characterized in that The automatic fin tube threading device also includes a fin load-bearing mechanism that can be raised and lowered in the vertical direction so that the fallen fins can be slowly inserted into the copper tube; in the initial state, the fin load-bearing mechanism is located at the top of the fin receiving mechanism, and when the number of fallen fins increases, the fin load-bearing mechanism descends in an intermittent or continuous manner.

5. The fin automatic tube threading device according to claim 4, wherein, The fin load-bearing mechanism includes a load-bearing column, a load-bearing screw nut assembly and a load-bearing frame. The load-bearing column is fixed on the blanking rotation mechanism and is located outside the fin receiving mechanism. The load-bearing frame is located inside the fin receiving mechanism and is connected to the load-bearing column through the load-bearing screw nut assembly.

6. The fin automatic tube threading device according to claim 1, characterized in that The number of the clamping assemblies is at least one set; when the number of the clamping assemblies is multiple sets, all of the clamping assemblies are arranged in multiple rows along the length direction of the positioning block, and each row of the clamping assemblies includes at least two sets of the clamping assemblies arranged at intervals along the vertical direction; the clamping assemblies in all rows are driven by a set of the orthopedic drive module to achieve synchronous linkage, or, the clamping assemblies in each row are driven by a set of the orthopedic drive module to achieve multiple rows of independent movement.

7. The fin automatic tube threading device according to claim 1, characterized in that, The guide clamping devices are provided in multiple sets in parallel; each set of the guide clamping devices is transmission-connected to a set of the guide drive modules, or all sets of the guide clamping devices are transmission-connected to a set of the guide drive modules.

8. A finned tube threading method, characterized in that, The fin automatic tube threading device according to any one of claims 1 to 7 is used, and the fin automatic tube threading device includes a blanking rotation mechanism, a fin receiving mechanism, a correction mechanism, a fin bearing mechanism, a guide head and a guide pick-up mechanism, and specifically includes the following steps: Step 100, device installation: install the blanking rotating mechanism under the punch press according to the installation position of the fin processing punch press, then install the fin receiving mechanism on the blanking rotating mechanism, install the correction mechanism into the fin receiving mechanism, then install the fin bearing mechanism on the blanking rotating mechanism, and fix the guide pick-up and place mechanism to one end of the blanking rotating mechanism according to the installation position of the blanking rotating mechanism; Step 200, centering the copper tube: fix the copper tube to the fin receiving mechanism and use the correction mechanism to clamp the copper tube to keep it concentric with the center of the fin, control the guide clamping mechanism to move to the top of the copper tube, and release the guide head located thereon so that the guide head falls into the copper tube for receiving the material; Step 300, automatic tube threading: Control the rotation of the blanking rotation mechanism to move the fin receiving mechanism to the receiving position below the punching machine, align the centers of all copper tubes with the center of the fin, control the vibrator in the blanking rotation mechanism to start working. After the fins are processed, they automatically fall under the action of gravity, first pass through the guide head and then are guided into the copper tube, and then contact the fin bearing mechanism. As more fins are inserted, the fin bearing mechanism and the straightening mechanism continuously descend to ensure that the required number of fins are automatically inserted into the copper tube; Step 400, material taking: After all the fins are inserted, control the rotation of the blanking rotation mechanism to move the fin receiving mechanism away from the punching machine to the feeding position. The guiding picking and placing mechanism moves downward to pick up the guide head located at the top of the copper tube, then moves upward and then horizontally to make way. Control the straightening mechanism to release the copper tube, and manually pull out the copper tube with the inserted fins upward. One cycle is completed, enter the next cycle, and repeat steps 200 - 400.

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