A tube insertion torque feedback pushing device in the refrigeration field

Abstract

The present invention discloses a refrigeration field intubation torque feedback pushing device, including: a pushing mechanism, a driving mechanism and a torque feedback linear module; the pushing mechanism abuts against the curved pipe part of the U-shaped copper tube; the driving mechanism includes a power source and a reciprocating transmission mechanism, the power source drives the reciprocating transmission mechanism and then drives the pushing mechanism to reciprocate along the intubation direction; the torque feedback linear module drives the pushing mechanism and the driving mechanism to move along the intubation direction. The present invention drives the pushing mechanism to reciprocate along the intubation direction by setting a driving mechanism, so that when the pushing mechanism pushes all U-shaped copper tubes, the guide pin at the front end of the U-shaped copper tube is easier to penetrate into the mounting hole of the fin; and by setting a torque feedback linear module, the vibration of the pushing mechanism is avoided through torque monitoring to damage the U-shaped copper tube and the fin.

Description

Technical Field

[0001] The invention relates to the technical field of air-conditioning manufacturing, and in particular to a tube insertion torque feedback pushing device in the refrigeration field. Background Art

[0002] Usually, by adding metal sheets with strong thermal conductivity to the surface of heat exchange devices where heat transfer is required, the heat exchange surface area of ​​the device is increased to improve the heat exchange efficiency. The metal sheets with this function are called fins.

[0003] There are two main heat exchangers in common household air conditioners, namely the evaporator in the indoor unit and the condenser in the outdoor unit. The working medium on one side of these two heat exchangers is the refrigerant, and on the other side is air. In order to enhance the heat transfer of the heat exchanger, the heat exchange area is generally arranged compactly on the air side. Most household air conditioners use compact tube-fin heat exchangers.

[0004] The fins of a compact tube-fin heat exchanger are generally provided with a plurality of mounting holes that can match the outer diameter of the U-shaped copper tube. The manufacturing process is generally to first punch the fins into shape using a stamping machine, then insert the U-shaped copper tubes side by side into the mounting holes on the fin group to form a fin assembly, and finally expand the open end of the U-shaped copper tube. After the inside of the U-shaped copper tube is dried, the U-shaped copper elbow is inserted and welded to connect each U-shaped copper tube in sequence, that is, to connect all the U-shaped copper tubes into one channel.

[0005] At present, air-conditioning manufacturers still use a lot of manual work when inserting the fins of compact tube-fin heat exchangers, that is, manually inserting U-shaped copper tubes one by one into the neatly stacked fin group, and then the fin assembly obtained by manually inserting the U-shaped copper tubes is subjected to the tube expansion process and the U-shaped copper bend insertion and welding process in sequence.

[0006] The push mechanism of the existing automatic insertion system for U-shaped copper tubes adopts a fixed structure for pushing. The driving part and the pusher are rigidly connected. The driving part pushes the pusher to move, thereby pushing all U-shaped copper tubes into the fin group. Since the two straight parts of the U-shaped copper tube rebound and open, it is easy for the U-shaped copper tubes to be unevenly stressed during the process of pushing all the U-shaped copper tubes, resulting in the guide pins at the front end of some U-shaped copper tubes being unable to be inserted into the mounting holes of the fins. Because the pusher cannot adjust itself, it will cause damage to the U-shaped copper tubes and fins. Summary of the invention

[0007] The present invention provides a tube insertion torque feedback pushing device in the field of refrigeration to solve the above technical problems.

[0008] In order to achieve the above object, the technical solution of the present invention is:

[0009] A refrigeration field insertion torque feedback pushing device comprises: a pushing mechanism, a driving mechanism and a torque feedback linear module; the pushing mechanism abuts against the curved pipe part of the U-shaped copper pipe; the driving mechanism comprises a power source and a reciprocating transmission mechanism, the power source drives the reciprocating transmission mechanism and then drives the pushing mechanism to reciprocate and vibrate along the insertion direction; the torque feedback linear module drives the pushing mechanism and the driving mechanism to move along the insertion direction.

[0010] Preferably, the driving mechanism includes: the driving mechanism also includes a driving mechanism mounting plate, the power source includes a driving motor, the reciprocating transmission mechanism includes a cam mechanism and a first guide mechanism, the torque feedback linear module drives the driving mechanism mounting plate, the driving motor is installed on the driving mechanism mounting plate, the driving motor drives the cam mechanism, the cam mechanism drives the pushing mechanism to vibrate reciprocatingly along the insertion direction, and the first guide mechanism guides the pushing mechanism.

[0011] Preferably, the cam mechanism comprises: a rotating shaft, an eccentric wheel and a cam sleeve; the axis of the rotating shaft is perpendicular to the movement direction of the pushing mechanism, the eccentric wheel is eccentrically and fixedly mounted on the rotating shaft, and the driving motor drives the rotating shaft and the eccentric wheel to rotate synchronously; the cam sleeve is rotatably mounted on the eccentric wheel, and the cam sleeve is rotatably connected to a pushing mechanism mounting seat on which the pushing mechanism is installed, and the rotation axis of the cam sleeve and the pushing mechanism mounting seat is parallel to the axis of the rotating shaft.

[0012] Preferably, the cam sleeve and the push mechanism mounting seat are further provided with a connecting piece, one end of the connecting piece is fixed on the push mechanism mounting seat, and the other end of the connecting piece is rotatably connected to the cam sleeve through a rotating pin.

[0013] Preferably, the pushing mechanism also includes: at least two guide sleeves, guide columns corresponding to each other and passing through the guide sleeves, an elastic member, and a contoured push block abutting the curved portion of the U-shaped copper tube; the contoured push block is located on the side of the pushing mechanism mounting seat away from the cam mechanism, the guide sleeve is installed on the pushing mechanism mounting seat, one end of the guide column is connected to the contoured push block, and the other end passes through the guide sleeve, the elastic member is arranged between the contoured push block and the guide sleeve, and the elastic member has a tendency to hinder the contoured push block from approaching the guide sleeve.

[0014] Preferably, the guide column is connected to the limiting plate after passing through the guide sleeve.

[0015] Preferably, a profiling limit groove is provided on one side of the profiling push block away from the push mechanism mounting seat, the bottom of the profiling limit groove is a curved surface, the curved surface matches the bent tube portion of the U-shaped copper tube, and the number of the profiling limit grooves corresponds to the number of U-shaped copper tubes on the fin group.

[0016] Preferably, a lifting mechanism is also provided between the driving mechanism and the torque feedback linear module, and the lifting mechanism comprises: a lifting mechanism mounting seat connected to the torque feedback linear module and a linear drive installed on the lifting mechanism mounting seat, the torque feedback linear module drives the lifting mechanism mounting seat to move along the insertion direction, and the linear drive drives the driving mechanism and the pushing mechanism to lift and lower in the vertical plane in a direction perpendicular to the insertion direction.

[0017] Preferably, a second guide mechanism is installed on the lifting mechanism mounting seat, and the second guide mechanism guides the linear drive.

[0018] Preferably, the lifting mechanism mounting seat is connected to a third guiding mechanism, and the third guiding mechanism guides the lifting mechanism mounting seat.

[0019] Beneficial effects:

[0020] The present application discloses a refrigeration field insertion torque feedback pushing device, which drives a pushing mechanism to vibrate back and forth along the insertion direction by setting a driving mechanism, so that when the pushing mechanism pushes all U-shaped copper tubes, the guide pins at the front ends of the U-shaped copper tubes can more easily penetrate into the mounting holes of the fins; and by setting a torque feedback linear module, torque monitoring is used to avoid damage to the U-shaped copper tubes and fins due to vibration of the pushing mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 The structure of the intubation torque feedback pushing device disclosed in the present invention is a schematic diagram of the refrigeration field Figure 1 ;

[0023] Figure 2 The structure of the intubation torque feedback pushing device disclosed in the present invention is a schematic diagram of the refrigeration field Figure 2 ;

[0024] Figure 3 It is a front view of a tube insertion torque feedback pushing device in the refrigeration field disclosed by the present invention;

[0025] Figure 4 It is a left view of a tube insertion torque feedback pushing device in the refrigeration field disclosed by the present invention;

[0026] Figure 5 The present invention discloses a structural schematic diagram of a pushing mechanism and a driving mechanism combination of a tube insertion torque feedback pushing device in the refrigeration field.

[0027] 511, push mechanism mounting seat; 5111, first plate; 5112, second plate; 512, guide sleeve; 513, guide column; 514, elastic member; 515, contour push block; 516, limit plate; 517, first adjusting screw; 518, second adjusting screw; 521, drive mechanism mounting plate; 522, drive motor; 5231, rotating shaft; 5232, eccentric wheel; 5233, cam sleeve; 5235, rotating pin; 5236, bearing pressure Plate; 5237, straight rod; 5238, L-shaped member; 524, drive motor mounting plate; 525, coupling; 526, shaft support plate; 527, first linear guide; 53, torque feedback linear module; 541, lifting mechanism mounting seat; 542, linear drive; 543, reinforcement mounting plate; 544, rib plate; 545, guide fork; 546, guide mounting plate; 547, roller; 548, second linear guide; 549, guide rail mounting seat. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] A refrigeration field insertion torque feedback push device, combined with Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, it includes: a push mechanism, a driving mechanism and a torque feedback linear module 53; the push mechanism abuts against the curved tube portion of the U-shaped copper tube; the driving mechanism includes a power source and a reciprocating transmission mechanism, the power source drives the reciprocating transmission mechanism and then drives the push mechanism to reciprocate and vibrate in the direction of the tube insertion; the torque feedback linear module 53 drives the push mechanism and the driving mechanism to move in the direction of the tube insertion. The push mechanism abuts against the curved tube portion of the U-shaped copper tube, the torque feedback linear module 53 drives the push mechanism and the driving mechanism to move in the direction of the tube insertion, and the guide pin at the front end of the U-shaped copper tube gradually penetrates into the mounting hole of the fin; in the process of the push mechanism pushing forward, the driving mechanism drives the push mechanism to reciprocate and vibrate in the direction of the tube insertion, and the reciprocating vibration of the push mechanism plays an adjustment role, so that the guide pin can be better introduced into the mounting hole of the fin and will not be directly stuck on the fin. The torque is monitored by the torque feedback linear module 53 to prevent the guide needle and the U-shaped copper tube from being damaged by excessive force when the pushing mechanism moves along the insertion direction and reciprocates and vibrates.

[0030] In summary, the cooperation of the driving mechanism and the torque feedback linear module 53 realizes the process of simulating manual intubation; the torque feedback linear module 53 monitors the situation of encountering large resistance during the intubation process, and the driving mechanism drives the pushing mechanism to reciprocate and vibrate to simulate the action of manual shaking adjustment. The pushing device can realize self-adjustment, overcome the problem that some U-shaped copper tubes cannot be inserted into the mounting holes of the fins due to the opening of the U-shaped copper tube, the processing error of the U-shaped copper tube, and the uneven force, and avoid damage to the U-shaped copper tube and the fins.

[0031] Specifically, the torque feedback linear module 53 adopts a standard screw module, and the motor adopts a motor with torque feedback.

[0032] Preferably, the driving mechanism also includes a driving mechanism mounting plate 521, the power source includes a driving motor 522, the reciprocating transmission mechanism includes a cam mechanism and a first guide mechanism, the torque feedback linear module 53 drives the driving mechanism mounting plate 521, the driving motor 522 is installed on the driving mechanism mounting plate 521, the driving motor 522 drives the cam mechanism, and the torque feedback linear module 53 drives the driving mechanism mounting plate 521 to drive the driving motor 522, the cam mechanism and the pushing mechanism to reciprocate along the insertion direction. The cam mechanism drives the pushing mechanism to reciprocate along the insertion direction, and the first guide mechanism guides the pushing mechanism. The cam mechanism can achieve a small vibration of the pushing mechanism, so that the guide needle can be better introduced into the mounting hole of the fin. In addition, the cam mechanism can control the motion law of the pushing mechanism, which is convenient for designing the speed, acceleration and displacement of the pushing mechanism, thereby realizing the control of the force of the pushing mechanism during the pushing process and avoiding a large impact on the U-shaped copper tube.

[0033] Preferably, the cam mechanism comprises: a rotating shaft 5231, an eccentric wheel 5232 and a cam sleeve 5233; the axis of the rotating shaft 5231 is perpendicular to the movement direction of the pusher mechanism, the eccentric wheel 5232 is eccentrically and fixedly sleeved on the rotating shaft 5231, and the driving motor 522 drives the rotating shaft 5231 and the eccentric wheel 5232 to rotate synchronously; the cam sleeve 5233 is rotatably sleeved on the eccentric wheel 5232, and the cam sleeve 5233 is rotatably connected to the pusher mechanism mounting seat 511 on which the pusher mechanism is installed, and the rotation axes of the cam sleeve 5233 and the pusher mechanism mounting seat 511 are parallel to the axis of the rotating shaft 5231. The driving motor 522 drives the rotating shaft 5231 and the eccentric wheel 5232 to rotate synchronously, and the cam sleeve 5233 as a driven member moves with the rotation of the eccentric wheel 5232, and the cam sleeve 5233 thereby drives the pusher mechanism mounting seat 511 and the pusher mechanism to vibrate back and forth along the set motion law.

[0034] Specifically, the direction of the cannulation is preferably horizontal and vertical. In this example, the horizontal direction cannulation is used as an example for explanation. The drive mechanism mounting plate 521 is horizontally arranged, and a drive motor mounting plate 524 is arranged below the drive mechanism mounting plate 521. The drive motor mounting plate 524 is parallel to the drive mechanism mounting plate 521 and is fixedly connected through four first support columns. The housing of the drive motor 522 is fixed to the lower surface of the drive motor mounting plate 524, and the output shaft of the drive motor 522 passes through the drive motor mounting plate 524 and is connected to the rotating shaft 5231 through a coupling 525.

[0035] Specifically, a rotating shaft support plate 526 is arranged above the drive mechanism mounting plate 521, and the rotating shaft support plate 526 is parallel to the drive mechanism mounting plate 521 and fixedly connected through two second support columns. The rotating shaft 5231 and the eccentric wheel 5232 are integrally formed, and the cam sleeve 5233 is plate-shaped. One end of the rotating shaft 5231 is rotatably connected to the rotating shaft support plate 526, and the other end passes downward through the cam sleeve 5233 and the drive mechanism mounting plate 521 in sequence and then connects to the coupling 525. The rotating shaft support plate 526 and the drive mechanism mounting plate 521 support the rotating shaft 5231 to rotate stably and reliably, avoiding the shaking of the rotating shaft 5231 due to insufficient rigidity. The two second support columns are located on both sides of the cam sleeve 5233 perpendicular to the insertion direction to avoid the two second support columns interfering with the movement of the cam sleeve 5233.

[0036] Specifically, bearings are installed between the rotating shaft 5231 and the rotating shaft support plate 526, between the rotating shaft 5231 and the driving mechanism mounting plate 521, and between the eccentric wheel 5232 and the cam sleeve 5233 to ensure smooth rotation between them. The upper and lower surfaces of the cam sleeve 5233 are installed with bearing pressure plates 5236 to achieve axial positioning of the bearing and prevent the bearing from moving.

[0037] Preferably, the cam sleeve 5233 and the pusher mechanism mounting seat 511 are further provided with a connecting piece, one end of the connecting piece is fixed to the pusher mechanism mounting seat 511, and the other end is rotatably connected to the cam sleeve 5233 through a rotating pin 5235. The additional connecting piece can facilitate installation and adjustment, ensure that the axis of the rotating pin 5235 is parallel to the axis of the rotating shaft 5231, and ensure that the pusher mechanism mounting seat 511 can move smoothly with the cam sleeve 5233.

[0038] Specifically, the rotating pin 5235 is detachably connected to the connecting member. The connecting member includes a straight rod 5237 and an L-shaped member 5238. One end of the straight rod 5237 is fixed to the push mechanism mounting seat 511 by a first set of screws, and the other end extends horizontally to the outside of the push mechanism mounting seat 511. The end of a straight section of the L-shaped member 5238 is fixedly connected to the straight rod 5237 by a second set of screws, and the other straight section of the L-shaped member 5238 is parallel to the straight rod 5237 and its end is away from the push mechanism mounting seat 511. The cam sleeve 5233 extends between the straight rod 5237 and the L-shaped member 5238, and the rotating pin 5235 passes through the straight rod 5237 and then passes through the cam sleeve 5233 and the L-shaped member 5238 in sequence. The two ends of the rotating pin 5235 are limited by shaft retaining springs, and a bearing is provided between the rotating pin 5235 and the cam sleeve 5233. The straight rod 5237 is fixedly provided with a first boss on the side facing the cam sleeve 5233, and the L-shaped member 5238 is fixedly provided with a second boss on the side facing the cam sleeve 5233. The first boss and the second boss limit the axial positioning of the bearing on the outer periphery of the rotating pin 5235.

[0039] Specifically, the pusher mechanism mounting seat 511 includes a first flat plate 5111 and a second flat plate 5112 disposed above the drive mechanism mounting plate 521, the first flat plate 5111 is parallel to the drive mechanism mounting plate 521, and the second flat plate 5112 is perpendicular to the first flat plate 5111 and is located at an end of the first flat plate 5111 away from the cam sleeve 5233. The first flat plate 5111 and the second flat plate 5112 are integrally formed, and the straight rod 5237 is connected to the first flat plate 5111. The first guide mechanism includes two sets of first linear guide rails 527 disposed in parallel, and the first linear guide rails 527 are located between the first flat plate 5111 and the drive mechanism mounting plate 521. A portion of the first linear guide rail 527 is fixedly connected to the drive mechanism mounting plate 521, and the other portion is fixedly connected to the first flat plate 5111 as a sliding member.

[0040] Preferably, the pushing mechanism also includes: at least two guide sleeves 512, guide columns 513 corresponding to each other and passing through the guide sleeves 512, an elastic member 514, and a contoured push block 515 abutting against the curved portion of the U-shaped copper tube; the contoured push block 515 is located on the side of the pushing mechanism mounting seat 511 away from the cam mechanism, the guide sleeve 512 is installed on the pushing mechanism mounting seat 511, one end of the guide column 513 is connected to the contoured push block 515, and the other end passes through the guide sleeve 512, the elastic member 514 is arranged between the contoured push block 515 and the guide sleeve 512, and the elastic member 514 has a tendency to hinder the contoured push block 515 from approaching the guide sleeve 512. The setting of the elastic member 514 can make the profiling push block 515 superimpose vibration on the reciprocating vibration of the entire pushing mechanism; in the return stroke of the pushing mechanism, the profiling push block 515 is temporarily separated from the curved tube portion of the U-shaped copper tube to prevent the guide needle that is not aligned with the fin mounting hole to be passed through from being directly stuck on the fin to be passed through; after the guide needle is temporarily separated from the fin to be passed through, the guide needle can adjust its position under the action of vibration; the profiling push block 515 rebounds under the elastic force of the elastic member 514, thereby providing a force for the U-shaped copper tube, so that the guide needle penetrates into the fin mounting hole to be passed through.

[0041] At the same time, there is a buffer distance between the contoured push block 515 and the push mechanism mounting seat 511. During the movement of the push mechanism, it can play a good buffering and correction function when the U-shaped copper tube is subjected to uneven force or excessive force, thereby avoiding damage to the U-shaped copper tube and the fins.

[0042] Specifically, there are four guide sleeves 512, which are located at four corners of the second plate 5112 and pass through the second plate 5112. The elastic member 514 can be a compression spring, which is sleeved on the guide column 513, and the two ends of the compression spring abut against the contoured push block 515 and the guide sleeve 512 respectively.

[0043] Preferably, the guide post 513 passes through the guide sleeve 512 and is connected to a limit plate 516 , and the limit plate 516 limits the sliding of the guide post 513 to prevent the guide post 513 from sliding out of the guide sleeve 512 , thereby limiting the maximum distance between the contoured push block 515 and the second flat plate 5112 .

[0044] Specifically, a first adjusting screw 517 is installed on the side of the limiting plate 516 facing the second plate 5112, and the first adjusting screw 517 adjusts the distance between the limiting plate 516 and the second plate 5112. A second adjusting screw 518 is installed on the second plate 5112 to abut against the first adjusting screw 517. In this embodiment, the second adjusting screw 518 is threadedly connected to the second plate 5112, and the first adjusting screw 517 is threadedly connected to the limiting plate 516. By screwing the first adjusting screw 517, the distance between the limiting plate 516 and the second plate 5112 is adjusted, that is, the maximum distance between the profiling push block 515 and the second plate 5112 is adjusted; and then the deformation amount of the pre-compression of the elastic member 514 can be adjusted, so as to adjust the amplitude of the vibration superimposed on the reciprocating vibration of the profiling push block 515 on the basis of the entire pushing mechanism, so as to facilitate debugging so that the profiling push block 515 can push the U-shaped copper tube and the guide needle to smoothly and accurately penetrate into the fin installation hole to be passed through.

[0045] Preferably, a profiling limit groove is provided on one side of the profiling push block 515 away from the push mechanism mounting seat 511, and the bottom of the profiling limit groove is a curved surface, which matches the curved surface with the curved tube portion of the U-shaped copper tube, and the number of the profiling limit grooves corresponds to the number of U-shaped copper tubes on the fin assembly. The curved surface matches the curved tube portion of the U-shaped copper tube, which can better apply force to the U-shaped copper tube, avoid the profiling push block 515 and the curved tube portion of the U-shaped copper tube in line and surface contact, and prevent the U-shaped copper tube from being subjected to uneven force.

[0046] Preferably, a lifting mechanism is further provided between the driving mechanism and the torque feedback linear module 53, and the lifting mechanism comprises: a lifting mechanism mounting seat 541 connected to the torque feedback linear module 53 and a linear drive 542 mounted on the lifting mechanism mounting seat 541, the torque feedback linear module 53 drives the lifting mechanism mounting seat 541 to move along the intubation direction, and the linear drive 542 drives the driving mechanism and the pushing mechanism to lift and lower in the vertical plane along the direction perpendicular to the intubation direction. The lifting mechanism can adjust the position of the pushing mechanism in the vertical direction to align it with the U-shaped copper tube in the horizontal direction, so that the pushing mechanism can push the U-shaped copper tube horizontally, which is conducive to intubation.

[0047] Specifically, the linear drive 542 uses a slide cylinder. In this embodiment, the slide cylinder uses a double-axis precision slide cylinder. The body of the slide cylinder is installed on the lifting mechanism mounting seat 541, and the slider of the slide cylinder is connected to the drive mechanism mounting plate 521.

[0048] Specifically, a reinforcement mounting plate 543 is installed on the side of the body of the slide cylinder, and the reinforcement mounting plate 543 is vertically fixed on the lifting mechanism mounting seat 541. A rib plate 544 is provided at a right angle between the reinforcement mounting plate 543 and the lifting mechanism mounting seat 541. The reinforcement mounting plate 543 and the rib plate 544 together reinforce the slide cylinder.

[0049] Preferably, a second guide mechanism is installed on the lifting mechanism mounting seat 541, and the second guide mechanism guides the linear drive 542 to ensure the accuracy of the vertical movement of the driving mechanism and the pushing mechanism.

[0050] Specifically, the second guide mechanism includes: a guide fork 545, a guide mounting plate 546 and a roller 547. The guide fork 545 is vertically fixed to the lifting mechanism mounting seat 541, and the guide fork 545 is located on the side of the slide cylinder away from the reinforcement mounting plate 543. The guide mounting plate 546 is installed on the slider of the slide cylinder and is located between the slider of the slide cylinder and the guide fork 545. The roller 547 is rotatably installed on the guide mounting plate 546, and a vertical guide groove is provided on the guide fork 545. The roller 547 is arranged in the guide groove and rolls along the guide groove.

[0051] Preferably, a third guide mechanism is connected to the lifting mechanism mounting seat 541, and the third guide mechanism guides the lifting mechanism mounting seat 541 to ensure the accuracy of the movement of the driving mechanism and the pushing mechanism along the insertion direction.

[0052] Specifically, the third guiding mechanism includes two sets of second linear guide rails 548, the sliders of the second linear guide rails 548 are connected to the lifting mechanism mounting seat 541, the guide rails of the second linear guide rails 548 are installed on a plurality of guide rail mounting seats 549 arranged at intervals, and the guide rail mounting seats 549 are installed on the support platform of the insertion system for automatically inserting U-shaped copper tubes.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A refrigeration field intubation torque feedback pushing device, characterized in that: include: Pushing mechanism, driving mechanism and torque feedback linear module (53); The pushing mechanism abuts against the curved tube portion of the U-shaped copper tube; The driving mechanism includes a power source and a reciprocating transmission mechanism, wherein the power source drives the reciprocating transmission mechanism and then drives the pushing mechanism to reciprocate and vibrate along the direction of the insertion pipe; The torque feedback linear module (53) drives the pushing mechanism and the driving mechanism to move along the insertion direction; The driving mechanism further comprises a driving mechanism mounting plate (521), the power source comprises a driving motor (522), the reciprocating transmission mechanism comprises a cam mechanism and a first guide mechanism, the torque feedback linear module (53) drives the driving mechanism mounting plate (521), the driving motor (522) is mounted on the driving mechanism mounting plate (521), the driving motor (522) drives the cam mechanism, the cam mechanism drives the pushing mechanism to reciprocate and vibrate along the insertion direction, and the first guide mechanism guides the pushing mechanism; The cam mechanism comprises: a rotating shaft (5231), an eccentric wheel (5232) and a cam sleeve (5233); the axis of the rotating shaft (5231) is perpendicular to the movement direction of the pushing mechanism; the eccentric wheel (5232) is eccentrically and fixedly sleeved on the rotating shaft (5231); the driving motor (522) drives the rotating shaft (5231) and the eccentric wheel (5232) to rotate synchronously; the cam sleeve (5233) is rotatably sleeved on the eccentric wheel (5232); the cam sleeve (5233) is rotatably connected to a pushing mechanism mounting seat (511) on which the pushing mechanism is mounted; and the rotation axes of the cam sleeve (5233) and the pushing mechanism mounting seat (511) are parallel to the axis of the rotating shaft (5231).

2. According to claim 1, a refrigeration field insertion torque feedback pushing device is characterized in that: The cam sleeve (5233) and the material pushing mechanism mounting seat (511) are also provided with a connecting piece, one end of which is fixed to the material pushing mechanism mounting seat (511) and the other end of which is rotatably connected to the cam sleeve (5233) via a rotating pin (5235).

3. The refrigeration field insertion torque feedback pushing device according to claim 1 is characterized in that: The push mechanism further comprises: at least two guide sleeves (512), guide posts (513) corresponding to each other and passing through the guide sleeves (512), an elastic member (514), and a profiled push block (515) abutting against the curved pipe portion of the U-shaped copper pipe; the profiled push block (515) is located on a side of the push mechanism mounting seat (511) away from the cam mechanism; the guide sleeve (512) is mounted on the push mechanism mounting seat (511); one end of the guide post (513) is connected to the profiled push block (515) and the other end passes through the guide sleeve (512); the elastic member (514) is arranged between the profiled push block (515) and the guide sleeve (512); the elastic member (514) has a tendency to prevent the profiled push block (515) from approaching the guide sleeve (512).

4. The refrigeration field insertion torque feedback pushing device according to claim 3 is characterized in that: The guide column (513) passes through the guide sleeve (512) and is connected to the limiting plate (516).

5. The refrigeration field insertion torque feedback pushing device according to claim 3 is characterized in that: A profiling limit groove is provided on one side of the profiling push block (515) away from the push mechanism mounting seat (511), the groove bottom of the profiling limit groove is a curved surface, the curved surface matches the curved tube portion of the U-shaped copper tube, and the number of the profiling limit grooves corresponds to the number of the U-shaped copper tubes on the fin assembly.

6. The refrigeration field insertion torque feedback pushing device according to claim 1, characterized in that: A lifting mechanism is also provided between the driving mechanism and the torque feedback linear module (53), the lifting mechanism comprising: a lifting mechanism mounting seat (541) connected to the torque feedback linear module (53) and a linear drive (542) mounted on the lifting mechanism mounting seat (541), the torque feedback linear module (53) drives the lifting mechanism mounting seat (541) to move along the insertion direction, and the linear drive (542) drives the driving mechanism and the pushing mechanism to move up and down in a vertical plane in a direction perpendicular to the insertion direction.

7. The refrigeration field insertion torque feedback pushing device according to claim 6, characterized in that: A second guide mechanism is installed on the lifting mechanism mounting seat (541), and the second guide mechanism guides the linear drive (542).

8. The refrigeration field insertion torque feedback pushing device according to claim 6, characterized in that: The lifting mechanism mounting seat (541) is connected to a third guiding mechanism, and the third guiding mechanism guides the lifting mechanism mounting seat (541).

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