A tube expander

Abstract

This invention discloses a tube expander, comprising a frame, a tube expander mechanism, a first conveyor belt, a housing, a tube expander worktable, a pressure plate mechanism, and a gripper translation mechanism. This invention features a reasonable and simple structure, low production cost, and convenient installation. The fins after tube insertion are placed flat on the first conveyor belt, and then the extension of the third cylinder causes the second conveyor belt to move upwards as a whole. This facilitates the first conveyor belt directly transporting the fins onto the second conveyor belt, which then transports the fins to the tube expander station, thus reducing the workload of workers. The pressure plate mechanism in this invention can firmly press the fins together with the extension of the fourth cylinder, ensuring that the fins do not move or deform during tube expander operation. The reaming head in the gripper translation mechanism can expand all tube openings in the fins through the combined operation of the first and second motors, facilitating the insertion of the reaming needle into the tube for tube expander operation, thereby improving the service life of the reaming needle.

Description

Technical fields:

[0001] This invention relates to the field of air conditioning production equipment technology, and in particular to a tube expander. Background technology:

[0002] Air conditioning is a device that processes air temperature, humidity, purity, and airflow speed to meet people's production and living needs. It is simply called "air conditioning". In general, the finned assemblies and U-shaped copper tubes in household air conditioners need to be assembled together. After the assembly, the fins and U-shaped copper tubes need to be expanded to prevent the U-shaped copper tubes from detaching from the fins during use. However, the existing tube expansion machines require workers to place the assembled fins and U-shaped copper tubes directly on the tube expansion station. This is not only unsafe, but also inefficient. In addition, it is difficult to insert the expanding needle into the U-shaped copper tube, which affects the service life of the expanding needle. Summary of the Invention:

[0003] The purpose of this invention is to provide a tube expander to solve the above-mentioned problems. The existing tube expander requires workers to place the assembled fins and U-shaped copper directly on the tube expander station, which is not only unsafe but also inefficient. In addition, it is difficult to insert the expanding pin into the U-shaped copper, which affects the service life of the expanding pin.

[0004] To address the aforementioned problems, this invention provides a technical solution: a tube expander, the innovation of which lies in: comprising a frame, a tube expander mechanism, a first conveyor belt, a housing, a tube expander worktable, a pressure plate mechanism, and a gripper translation mechanism; the tube expander mechanism is mounted on the frame; the housing is fixedly connected to the right front side, and the first conveyor belt is mounted on the housing; the tube expander worktable is located to the left of the first conveyor belt, and is fixedly connected to the front side of the upper part of the frame; the pressure plate mechanism is located above the tube expander worktable, and is fixedly connected to the upper front side of the frame; the gripper translation mechanism is located behind the tube expander worktable, and is fixedly connected to the upper front side of the frame.

[0005] Preferably, the expansion mechanism includes a lead screw mechanism one, a crossbeam seat, a guide rod, a reaming pin guide plate, a U-groove tightening head, a cylinder one, a movable seat one, a lead screw mechanism two, a lead screw mechanism three, a retraction plate, a mounting plate, an expansion rod locking assembly, and a connecting frame; the lead screw mechanism one is located on the rear side of the frame; the crossbeam seat is movably connected to the upper rear side of the frame, and the threaded holes on both sides of the crossbeam seat are connected to the lead screw mechanism one; guide rods are movably connected to the guide holes around the crossbeam seat; the expansion rod locking assembly is fixedly connected to the front side of the crossbeam seat; there are several reaming pin guide plates, and the guide holes on both sides of the several reaming pin guide plates are movably connected to the front side of the corresponding guide rods; the lead screw mechanism two is located on the front side of the frame. The movable seat is longitudinally movably connected to the front side of the upper part of the frame. The threaded hole on the lower center of the movable seat is connected to the lead screw mechanism. Several cylinders are fixedly connected to the front side of the movable seat, and the piston rod ends of the cylinders are fixedly connected to the connecting frame. Several U-groove clamping heads are provided on the rear side of the connecting frame. The four corners of the mounting plate are respectively connected to the rear ends of the corresponding guide rods. Expansion rod locking assemblies are fixedly connected to the front and rear sides of the mounting plate. The lead screw mechanism is located on the rear side of the crossbeam seat. The guide holes at the four corners of the retraction plate are movably connected to the rear sides of the corresponding guide rods. The threaded holes on both sides of the retraction plate are connected to the lead screw mechanism. An expansion rod locking assembly is fixedly connected to the rear side of the retraction plate.

[0006] Preferably, the expansion workbench includes a platform, a fixed clamping block, a limiting block, a movable clamping block, a connecting block, a fixed plate, a slide rod, a connecting seat, a second cylinder, a second conveyor belt, a support seat, a support connecting plate, a third cylinder, and a mounting seat. The mounting seat is fixedly connected to the frame. There are three platforms, each fixedly connected to both sides and the center of the mounting seat. Fixed plates are fixedly connected to both sides of the bottom surface of each of the three platforms, and a second cylinder is fixedly connected to each of the fixed plates. A fixed clamping block is fixedly connected to the center of the top surface of each of the three platforms, and a third cylinder is fixedly connected to both sides of the center of each of the three platforms. A limit block is connected; a sliding rod is movably connected to the guide holes on both sides of the fixed plate, and a connecting seat is fixedly connected to the ends of both sides of the sliding rod. The inner connecting seat is fixedly connected to the end of the piston rod of the corresponding cylinder two, while a connecting block is fixedly connected to the top of the outer connecting seat; a movable clamping block is fixedly connected to the upper side of the connecting block; there are two support seats, which are fixedly connected to the bottom surfaces of the mounting base on both sides respectively. A cylinder three is fixedly connected to the center of the upper side of the two support seats, and a support connecting plate is fixedly connected to the end of the piston rod on the upper side of the cylinder three. A conveyor belt two is fixedly connected to the upper side of the support connecting plate.

[0007] Preferably, the connecting block is L-shaped.

[0008] Preferably, the pressure plate mechanism includes a guide rail seat, a crossbeam plate, a vertical guide sleeve, a vertical guide rod, four cylinders, and pressure plates. The guide rail seat is fixedly connected to the front side of the frame. Three crossbeam plates are movably connected to the guide rail seat, and vertical guide sleeves are fixedly connected to both sides of each crossbeam plate. Vertical guide rods are vertically movably connected to each vertical guide sleeve. There are three cylinders, which are fixedly connected to the upper center of the corresponding crossbeam plate. There are three pressure plates, with the upper sides of the three pressure plates fixedly connected to the lower ends of the corresponding vertical guide rods, and the upper center of the three pressure plates fixedly connected to the lower piston rod ends of the corresponding cylinders.

[0009] Preferably, the pressure plate is made of aluminum profile.

[0010] Preferably, the specific structure of the gripper translation mechanism includes a lead screw mechanism four, a translation seat, a lead screw mechanism five, a tensioning seat, gripper sleeves, copper tube grippers, double guide rails, a transverse seat, a telescopic seat, an enlarging head, an eccentric wheel, a motor one, a driven pulley, a synchronous belt, a driving pulley, and a motor two; the lead screw mechanism four is located on the upper side of the center of the frame; the translation seat is movably connected to the front side of the center of the frame, and the threaded holes on both sides of the translation seat are connected to the lead screw mechanism four; the rear side of the translation seat is provided with the lead screw mechanism five; there are several gripper sleeves, and the rear exterior of each gripper sleeve is fixedly connected to the front side of the translation seat; the double guide rails are fixedly connected to the upper front side of the translation seat, and a transverse seat is movably connected to the double guide rails, with a motor one fixedly connected to the right side of the transverse seat; the extension... The telescopic seat is longitudinally movably connected to the inside of the front side of the transverse seat. Several enlarged holes are fixedly connected to the front side of the telescopic seat. The eccentric wheel is movably connected to the inside of the telescopic seat, and the inside of the eccentric wheel is fixedly connected to the output shaft of motor one. The driven pulley is movably connected to the right side of the double guide rails. Motor two is fixedly connected to the upper left side of the double guide rails. A drive pulley is fixedly connected to the lower output shaft of motor two, and the drive pulley is connected to the driven pulley through a synchronous belt. The rear side of the transverse seat is fixedly connected to the front side of the synchronous belt. The tensioning seat is movably connected to the rear side of the translation seat. The threaded hole on the side of the tensioning seat is connected to the lead screw mechanism five. Several copper tube clamps are fixedly connected to the front side of the tensioning seat, and the front external side of the copper tube clamps is movably connected to the inside of the corresponding clamp sleeve.

[0011] Preferably, the motor is a servo motor with a speed reducer.

[0012] The beneficial effects of this invention are:

[0013] (1) The present invention has a reasonable and simple structure, low production cost and convenient installation. Here, the fins after the tube is inserted are placed flat on the first conveyor belt, and then the second conveyor belt is moved up as a whole by the extension of the third cylinder, so that the first conveyor belt can directly transport the fins on it to the second conveyor belt, and then the second conveyor belt can transport the fins to the tube expansion station, which reduces the workload of the workers.

[0014] (2) The pressure plate mechanism provided in this invention can firmly press the fins by extending the cylinder four, thereby ensuring that the fins will not move or deform during tube expansion.

[0015] (3) The expanding head provided in the gripper translation mechanism of the present invention can expand all tube openings in the fins through the joint operation of motor one and motor two, thereby facilitating the insertion of the expanding needle into the tube for tube expansion operation, which also improves the service life of the expanding needle.

[0016] (4) The U-groove clamping head provided in this invention can clamp the U-shaped part of the tube in the fin by extending the cylinder, thereby ensuring that the tube will not be displaced during the tube expansion operation, which also helps the tube expansion operation.

[0017] (5) The multiple expansion rod locking components provided in the tube expansion mechanism of the present invention can simultaneously clamp all the expanding pins as needed, thus satisfying the need for the retraction or conveying of the expanding pins in the tube expansion mechanism. Attached image description:

[0018] Figure 1 This is a schematic diagram of the structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the tube expansion mechanism.

[0020] Figure 3 This is a schematic diagram of the tube expansion workbench.

[0021] Figure 4 This is a schematic diagram of the pressure plate mechanism.

[0022] Figure 5 This is a schematic diagram of the gripper translation mechanism.

[0023] 1-Frame; 2-Expansion mechanism; 3-Conveyor belt one; 4-Chassis; 5-Expansion worktable; 6-Pressure plate mechanism; 7-Gripper translation mechanism; 21-Screw mechanism one; 22-Crossbeam seat; 23-Guide rod; 24-Expansion pin guide plate; 25-U-groove clamping head; 26-Cylinder one; 27-Modible seat one; 28-Screw mechanism two; 29-Screw mechanism three; 210-Return plate; 211-Mounting plate; 212-Expansion rod locking assembly; 213-Connecting frame; 51-Table; 52-Fixed clamping block; 53-Limit block; 54-Modible clamping block; 55-Connecting block; 56-Fixed plate; 57-Slide rod; 58-Connecting seat; 59- Cylinder 2; 510-Conveyor Belt 2; 511-Support Seat; 512-Support Connecting Plate; 513-Cylinder 3; 514-Mounting Seat; 61-Guide Rail Seat; 62-Crossbeam Plate; 63-Vertical Guide Sleeve; 64-Vertical Guide Rod; 65-Cylinder 4; 66-Pressure Plate; 71-Screw Mechanism 4; 72-Transfer Seat; 73-Screw Mechanism 5; 74-Tensioning Seat; 75-Claw Sleeve; 76-Copper Tube Claw; 77-Double Guide Rail; 78-Transverse Seat; 79-Telescopic Seat; 710-Expansion Head; 711-Eccentric Wheel; 712-Motor 1; 713-Driven Pulley; 714-Synchronous Belt; 715-Driven Pulley; 716-Motor 2. Detailed implementation method:

[0024] Example 1

[0025] like Figure 1 As shown, this specific embodiment adopts the following technical solution: a tube expander, including a frame 1, a tube expander mechanism 2, a conveyor belt 3, a housing 4, a tube expander worktable 5, a pressure plate mechanism 6, and a gripper translation mechanism 7; the tube expander mechanism 2 is disposed on the frame 1; the housing 4 is fixedly connected to the right front side, and the conveyor belt 3 is disposed on the housing 4; the tube expander worktable 5 is located to the left of the conveyor belt 3, and the tube expander worktable 5 is fixedly connected to the front side of the upper part of the frame 1; the pressure plate mechanism 6 is located on the upper side of the tube expander worktable 5, and the pressure plate mechanism 6 is fixedly connected to the upper front side of the frame 1; the gripper translation mechanism 7 is located behind the tube expander worktable 5, and the gripper translation mechanism 7 is fixedly connected to the upper front side of the frame 1.

[0026] Example 2

[0027] like Figure 1As shown, this specific embodiment adopts the following technical solution: a tube expander, including a frame 1, a tube expander mechanism 2, a conveyor belt 3, a housing 4, a tube expander worktable 5, a pressure plate mechanism 6, and a gripper translation mechanism 7; the tube expander mechanism 2 is disposed on the frame 1; the housing 4 is fixedly connected to the right front side, and the conveyor belt 3 is disposed on the housing 4; the tube expander worktable 5 is located to the left of the conveyor belt 3, and the tube expander worktable 5 is fixedly connected to the front side of the upper part of the frame 1; the pressure plate mechanism 6 is located on the upper side of the tube expander worktable 5, and the pressure plate mechanism 6 is fixedly connected to the upper front side of the frame 1; the gripper translation mechanism 7 is located behind the tube expander worktable 5, and the gripper translation mechanism 7 is fixedly connected to the upper front side of the frame 1.

[0028] like Figure 2 As shown, the specific structure of the tube expansion mechanism 2 includes a lead screw mechanism 21, a crossbeam seat 22, a guide rod 23, a reaming pin guide plate 24, a U-groove tightening head 25, a cylinder 26, a movable seat 27, a lead screw mechanism 28, a lead screw mechanism 3, a return plate 210, a mounting plate 211, an expansion rod locking assembly 212, and a connecting frame 213; the lead screw mechanism 21 is located on the rear side of the frame 1; the crossbeam seat 22 is movably connected to the upper rear side of the frame 1. The threaded holes on both sides are connected to the lead screw mechanism 21. Guide rods 23 are movably connected to the guide holes around the crossbeam seat 22. An expansion rod locking assembly 212 is fixedly connected to the front side of the crossbeam seat 22. Several reaming needle guide plates 24 are provided, with guide holes on both sides of each guide plate 24 movably connected to the front side of the corresponding guide rod 23. The lead screw mechanism 28 is located at the center of the front side of the frame 1. The movable seat 27 is longitudinally movably connected to the machine... On the front side of the upper frame 1, the threaded hole on the lower center of the movable seat 27 is connected to the lead screw mechanism 28. Several cylinders 26 are fixedly connected to the front side of the movable seat 27, and the piston rod ends of the cylinders 26 are fixedly connected to the connecting frame 213. Several U-groove clamping heads 25 are provided on the rear side of the connecting frame 213. The four corners of the mounting plate 211 are respectively connected to the rear ends of the corresponding guide rods 23. The front and rear sides of the mounting plate 211 are fixedly connected to the expansion rod locking assembly 212. The lead screw mechanism 29 is located on the rear side of the crossbeam seat 22. The guide holes at the four corners of the retraction plate 210 are movably connected to the rear exterior of the corresponding guide rods 23. The threaded holes on both sides of the retraction plate 210 are connected to the lead screw mechanism 29. The rear side of the retraction plate 210 is fixedly connected to the expansion rod locking assembly 212, so that all the expanding pins can be clamped at the same time as needed, thus meeting the needs of the expanding pin retraction or conveying in the expanding tube mechanism 2.

[0029] like Figure 3As shown, the specific mechanism of the tube expansion workbench 5 includes a platform 51, a fixed clamping block 52, a limiting block 53, a movable clamping block 54, a connecting block 55, a fixed plate 56, a sliding rod 57, a connecting seat 58, a second cylinder 59, a second conveyor belt 510, a support seat 511, a support connecting plate 512, a third cylinder 513, and a mounting seat 514; the mounting seat 514 is fixedly connected to the frame 1; there are three platform plates 51, which are respectively fixedly connected to the two sides and the center of the mounting seat 514. Fixed plates 56 are fixedly connected to both sides of the bottom surface of each of the three platform plates 51, and cylinders 59 are fixedly connected to each of the fixed plates 56. A fixed clamping block 52 is fixedly connected to the center of the top surface of each of the three platform plates 51, and the two sides of the center of each of the three platform plates 51 are fixedly connected to the mounting seat 514. Each of the fixed plates 56 is fixedly connected to a limit block 53; each of the guide holes on both sides of the fixed plate 56 is movably connected to a slide rod 57, and each of the two ends of the slide rod 57 is fixedly connected to a connecting seat 58, and the inner connecting seat 58 is fixedly connected to the piston rod end of the corresponding cylinder 2 59, while the top of the outer connecting seat 58 is fixedly connected to a connecting block 55; a movable clamping block 54 is fixedly connected to the upper side of the connecting block 55; there are two support seats 511, and the two support seats 511 are respectively fixedly connected to the bottom sides of the mounting base 514. A cylinder 3 513 is fixedly connected to the center of the upper side of the two support seats 511, and a support connecting plate 512 is fixedly connected to the piston rod end of the upper side of the cylinder 3 513. A conveyor belt 2 510 is fixedly connected to the upper side of the support connecting plate 512.

[0030] The connecting block 55 is L-shaped.

[0031] like Figure 4 As shown, the specific structure of the pressure plate mechanism 6 includes a guide rail seat 61, a crossbeam plate 62, a vertical guide sleeve 63, a vertical guide rod 64, a cylinder 65, and a pressure plate 66. The guide rail seat 61 is fixedly connected to the front upper side of the frame 1. Three crossbeam plates 62 are movably connected to the guide rail seat 61, and vertical guide sleeves 63 are fixedly connected to both sides of the crossbeam plates 62. Vertical guide rods 64 are vertically movably connected to each vertical guide sleeve 63. There are three cylinders 65, which are fixedly connected to the upper center of the corresponding crossbeam plate 62. There are three pressure plates 66, and the upper sides of the three pressure plates 66 are fixedly connected to the lower ends of the corresponding vertical guide rods 64. The upper center of the three pressure plates 66 is fixedly connected to the lower piston rod end of the corresponding cylinder 65.

[0032] The pressure plate 66 is made of aluminum profile.

[0033] Example 3

[0034] like Figure 1As shown, this specific embodiment adopts the following technical solution: a tube expander, including a frame 1, a tube expander mechanism 2, a conveyor belt 3, a housing 4, a tube expander worktable 5, a pressure plate mechanism 6, and a gripper translation mechanism 7; the tube expander mechanism 2 is disposed on the frame 1; the housing 4 is fixedly connected to the right front side, and the conveyor belt 3 is disposed on the housing 4; the tube expander worktable 5 is located to the left of the conveyor belt 3, and the tube expander worktable 5 is fixedly connected to the front side of the upper part of the frame 1; the pressure plate mechanism 6 is located on the upper side of the tube expander worktable 5, and the pressure plate mechanism 6 is fixedly connected to the upper front side of the frame 1; the gripper translation mechanism 7 is located behind the tube expander worktable 5, and the gripper translation mechanism 7 is fixedly connected to the upper front side of the frame 1.

[0035] like Figure 2 As shown, the specific structure of the tube expansion mechanism 2 includes a lead screw mechanism 21, a crossbeam seat 22, a guide rod 23, a reaming pin guide plate 24, a U-groove tightening head 25, a cylinder 26, a movable seat 27, a lead screw mechanism 28, a lead screw mechanism 3, a return plate 210, a mounting plate 211, an expansion rod locking assembly 212, and a connecting frame 213; the lead screw mechanism 21 is located on the rear side of the frame 1; the crossbeam seat 22 is movably connected to the upper rear side of the frame 1. The threaded holes on both sides are connected to the lead screw mechanism 21. Guide rods 23 are movably connected to the guide holes around the crossbeam seat 22. An expansion rod locking assembly 212 is fixedly connected to the front side of the crossbeam seat 22. Several reaming needle guide plates 24 are provided, with guide holes on both sides of each guide plate 24 movably connected to the front side of the corresponding guide rod 23. The lead screw mechanism 28 is located at the center of the front side of the frame 1. The movable seat 27 is longitudinally movably connected to the machine... On the front side of the upper frame 1, the threaded hole on the lower center of the movable seat 27 is connected to the lead screw mechanism 28. Several cylinders 26 are fixedly connected to the front side of the movable seat 27, and the piston rod ends of the cylinders 26 are fixedly connected to the connecting frame 213. Several U-groove clamping heads 25 are provided on the rear side of the connecting frame 213. The four corners of the mounting plate 211 are respectively connected to the rear ends of the corresponding guide rods 23. The front and rear sides of the mounting plate 211 are fixedly connected to the expansion rod locking assembly 212. The lead screw mechanism 29 is located on the rear side of the crossbeam seat 22. The guide holes at the four corners of the retraction plate 210 are movably connected to the rear exterior of the corresponding guide rods 23. The threaded holes on both sides of the retraction plate 210 are connected to the lead screw mechanism 29. The rear side of the retraction plate 210 is fixedly connected to the expansion rod locking assembly 212, so that all the expanding pins can be clamped at the same time as needed, thus meeting the needs of the expanding pin retraction or conveying in the expanding tube mechanism 2.

[0036] like Figure 3As shown, the specific mechanism of the tube expansion workbench 5 includes a platform 51, a fixed clamping block 52, a limiting block 53, a movable clamping block 54, a connecting block 55, a fixed plate 56, a sliding rod 57, a connecting seat 58, a second cylinder 59, a second conveyor belt 510, a support seat 511, a support connecting plate 512, a third cylinder 513, and a mounting seat 514; the mounting seat 514 is fixedly connected to the frame 1; there are three platform plates 51, which are respectively fixedly connected to the two sides and the center of the mounting seat 514. Fixed plates 56 are fixedly connected to both sides of the bottom surface of each of the three platform plates 51, and cylinders 59 are fixedly connected to each of the fixed plates 56. A fixed clamping block 52 is fixedly connected to the center of the top surface of each of the three platform plates 51, and the two sides of the center of each of the three platform plates 51 are fixedly connected to the mounting seat 514. Each of the fixed plates 56 is fixedly connected to a limit block 53; each of the guide holes on both sides of the fixed plate 56 is movably connected to a slide rod 57, and each of the two ends of the slide rod 57 is fixedly connected to a connecting seat 58, and the inner connecting seat 58 is fixedly connected to the piston rod end of the corresponding cylinder 2 59, while the top of the outer connecting seat 58 is fixedly connected to a connecting block 55; a movable clamping block 54 is fixedly connected to the upper side of the connecting block 55; there are two support seats 511, and the two support seats 511 are respectively fixedly connected to the bottom sides of the mounting base 514. A cylinder 3 513 is fixedly connected to the center of the upper side of the two support seats 511, and a support connecting plate 512 is fixedly connected to the piston rod end of the upper side of the cylinder 3 513. A conveyor belt 2 510 is fixedly connected to the upper side of the support connecting plate 512.

[0037] The connecting block 55 is L-shaped.

[0038] like Figure 4 As shown, the specific structure of the pressure plate mechanism 6 includes a guide rail seat 61, a crossbeam plate 62, a vertical guide sleeve 63, a vertical guide rod 64, a cylinder 65, and a pressure plate 66. The guide rail seat 61 is fixedly connected to the front upper side of the frame 1. Three crossbeam plates 62 are movably connected to the guide rail seat 61, and vertical guide sleeves 63 are fixedly connected to both sides of the crossbeam plates 62. Vertical guide rods 64 are vertically movably connected to each vertical guide sleeve 63. There are three cylinders 65, which are fixedly connected to the upper center of the corresponding crossbeam plate 62. There are three pressure plates 66, and the upper sides of the three pressure plates 66 are fixedly connected to the lower ends of the corresponding vertical guide rods 64. The upper center of the three pressure plates 66 is fixedly connected to the lower piston rod end of the corresponding cylinder 65.

[0039] The pressure plate 66 is made of aluminum profile.

[0040] like Figure 5As shown, the specific mechanism of the gripper translation mechanism 7 includes a lead screw mechanism 4 71, a translation seat 72, a lead screw mechanism 5 73, a tensioning seat 74, a gripper sleeve 75, a copper tube gripper 76, a double guide rail 77, a transverse translation seat 78, a telescopic seat 79, a reaming head 710, an eccentric wheel 711, a motor 1 712, a driven pulley 713, a synchronous belt 714, a driving pulley 715, and a motor 2 716; the lead screw mechanism 4 71 is located on the upper center of the frame 1; the translation seat 72 is movably connected to... The translation seat 72 is connected to the front center of the frame 1. The threaded holes on both sides of the translation seat 72 are connected to the lead screw mechanism 71. The lead screw mechanism 73 is provided on the rear side of the translation seat 72. There are several gripper sleeves 75, and the rear exterior of several gripper sleeves 75 are fixedly connected to the front side of the translation seat 72. The double guide rail 77 is fixedly connected to the upper front side of the translation seat 72. The transverse slide seat 78 is movably connected to the double guide rail 77, and the motor 712 is fixedly connected to the right side of the transverse slide seat 78. The telescopic base 79 is longitudinally movably connected to the front side of the transverse base 78. Several expanding heads 710 are fixedly connected to the front side of the telescopic base 79. The eccentric wheel 711 is movably connected to the inside of the telescopic base 79, and the inside of the eccentric wheel 711 is fixedly connected to the output shaft of motor one 712. The driven pulley 713 is movably connected to the right side of the double guide rail 77. The second motor 716 is fixedly connected to the upper left side of the double guide rail 77, and the lower output shaft of the second motor 716 is fixedly connected to... There is a driving pulley 715, which is connected to the driven pulley 713 via a synchronous belt 714; the rear side of the transverse seat 78 is fixedly connected to the front side of the synchronous belt 714; the tension seat 74 is movably connected to the rear side of the translation seat 72, and the threaded hole on the side of the tension seat 74 is connected to the lead screw mechanism 73; a plurality of copper tube clamps 76 are fixedly connected to the front side of the tension seat 74, and the front external side of the copper tube clamps 76 is movably connected to the inside of the corresponding clamp sleeve 75.

[0041] The motor 712 is a servo motor with a speed reducer, which makes it easy to control using existing automation technology.

[0042] The invention is used as follows: It features a reasonable and simple structure, low production cost, and convenient installation. In use, the fins after being threaded through the tube are first placed flat on conveyor belt 3. Then, the extension of cylinder 3 513 causes conveyor belt 2 510 to move upwards, facilitating the direct transfer of the fins from conveyor belt 3 to conveyor belt 2 510. Conveyor belt 2 510 then transports the fins to the platform 51. Finally, cylinder 3 513 shortens to place the fins onto the platform 51. Cylinder 2 59 is used here. The movable clamping block 54 can be driven to move inward to clamp the fins and press them against the side of the fixed clamping block 52, thus ensuring the fin clamping and positioning effect. The pressure plate mechanism 6 can firmly press the pressure plate 66 against the fins through the extension of the cylinder 65, thus ensuring that the fins will not move or deform during tube expansion. The reaming head 710 in the jaw translation mechanism 7 can ream all tube openings in the fins through the combined work of motor 712 and motor 716, thus facilitating subsequent tube expansion operations. The U-shaped... The U-shaped clamping head 25, through the extension of cylinder 26, clamps the U-shaped part of the finned tube, ensuring that the tube does not shift during the tube expansion operation, thus facilitating the tube expansion process. Then, the screw mechanism 21 is activated, driving the crossbeam seat 22 forward as a whole, ensuring that all the reaming needle guide plates 24 do not detach from the reaming needles, thus avoiding the disordered phenomenon during the reaming needle tube expansion. Here, the screw mechanism 73 in the jaw translation mechanism 7 enables the tensioning seat 74 to drive all the copper tube jaws 7. The expansion mechanism 6 moves backward, thereby directly clamping all the expanding pins, which satisfies the need for all the expanding pins to expand the tube at the same time. Then, the lead screw mechanism 71 is activated to move the translation seat 72 forward as a whole, which makes it easier to insert the clamped expanding pins directly into the tube in the fin for tube expansion. This ensures that the tube can be firmly clamped in the hole of the fin. In addition, the multiple expansion rod locking components 212 in the tube expansion mechanism 2 can clamp all the expanding pins at the same time as needed, which satisfies the need for the expanding pins to retract or be conveyed in the tube expansion mechanism 2.

[0043] The control method of this invention is either manual start-up or control through existing automation technology. The wiring diagram of the power element and the supply of power are common knowledge in the field. Furthermore, since this invention is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail here.

[0044] In the description of the invention, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0045] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of the invention. Those skilled in the art should understand that the invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications may be made to the invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A tube expander, characterized in that: It includes a frame (1), a tube expansion mechanism (2), a conveyor belt (3), a machine box (4), a tube expansion worktable (5), a pressure plate mechanism (6), and a gripper translation mechanism (7); The tube expansion mechanism (2) is mounted on the frame (1); The chassis (4) is equipped with a conveyor belt (3); The tube expansion workbench (5) is located on the left side of the conveyor belt (3), and the tube expansion workbench (5) is fixedly connected to the front side of the upper part of the frame (1); The pressure plate mechanism (6) is located on the upper side of the tube expansion workbench (5), and the pressure plate mechanism (6) is fixedly connected to the upper front side of the frame (1); The gripper translation mechanism (7) is located on the rear side of the tube expansion worktable (5), and the gripper translation mechanism (7) is fixedly connected to the front upper side of the frame (1); The specific components of the tube expansion mechanism (2) include a lead screw mechanism (21), a crossbeam seat (22), a guide rod (23), a hole-expanding needle guide plate (24), a U-groove clamping head (25), a cylinder (26), a movable seat (27), a lead screw mechanism (28), a lead screw mechanism (3) (29), a return plate (210), a mounting plate (211), a tube expansion locking assembly (212), and a connecting frame (213). The lead screw mechanism (21) is located on the rear side of the frame (1); The crossbeam seat (22) is movably connected to the upper rear side of the frame (1). The threaded holes on both sides of the crossbeam seat (22) are connected to the lead screw mechanism (21). Guide rods (23) are movably connected in the guide holes around the crossbeam seat (22). An expansion rod locking assembly (212) is fixedly connected to the front side of the crossbeam seat (22). There are several reaming needle guide plates (24), and the guide holes on both sides of the several reaming needle guide plates (24) are movably connected to the front side of the corresponding guide rod (23); The second lead screw mechanism (28) is located at the center of the front side of the frame (1); The movable seat 1 (27) is longitudinally movably connected to the front side of the upper part of the frame (1). The threaded hole provided on the lower center of the movable seat 1 (27) is connected to the lead screw mechanism 2 (28). Several cylinders 1 (26) are fixedly connected to the front side of the movable seat 1 (27), and the piston rod ends of the cylinders 1 (26) are fixedly connected to the connecting frame (213). Several U-groove clamping heads (25) are provided on the rear side of the connecting frame (213). The mounting plate (211) is fixedly connected to the front and rear sides with expansion rod locking components (212). The lead screw mechanism three (29) is located on the rear side of the crossbeam seat (22); The guide holes at the four corners of the retraction plate (210) are movably connected to the rear side of the corresponding guide rod (23). The threaded holes on both sides of the retraction plate (210) are connected to the lead screw mechanism (29). The rear side of the retraction plate (210) is fixedly connected to the expansion rod locking assembly (212).

2. The tube expander according to claim 1, characterized in that: The specific structure of the tube expansion workbench (5) includes a platform (51), a fixed clamping block (52), a limiting block (53), a movable clamping block (54), a connecting block (55), a fixed plate (56), a slide bar (57), a connecting seat (58), a second cylinder (59), a second conveyor belt (510), a support seat (511), a support connecting plate (512), a third cylinder (513), and a mounting seat (514). The mounting base (514) is fixedly connected to the frame (1); There are three platform plates (51). The three platform plates (51) are fixedly connected to the upper sides and the center of the mounting base (514). The bottom sides of the three platform plates (51) are fixedly connected to the fixing plates (56), and the cylinders (59) are fixedly connected to the fixing plates (56). The center of the top surface of the three platform plates (51) is fixedly connected to the fixing clamp (52), and the center sides of the three platform plates (51) are fixedly connected to the limiting blocks (53). The guide holes on both sides of the fixed plate (56) are movably connected to slide rods (57), and the ends of both sides of the slide rods (57) are fixedly connected to connecting seats (58). The inner connecting seat (58) is fixedly connected to the piston rod end of the corresponding cylinder (59), while the top of the outer connecting seat (58) is fixedly connected to a connecting block (55). A movable clamping block (54) is fixedly connected to the upper side of the connecting block (55); There are two support seats (511). The two support seats (511) are fixedly connected to the bottom sides of the mounting base (514). A cylinder three (513) is fixedly connected to the center of the upper side of the two support seats (511). A support connecting plate (512) is fixedly connected to the piston rod end of the upper side of the cylinder three (513). A conveyor belt two (510) is fixedly connected to the upper side of the support connecting plate (512).

3. The tube expander according to claim 2, characterized in that: The connecting block (55) is L-shaped.

4. A tube expander according to claim 1, characterized in that: The specific structure of the pressure plate mechanism (6) includes a guide rail seat (61), a crossbeam plate (62), a vertical guide sleeve (63), a vertical guide rod (64), a cylinder (65), and a pressure plate (66). The guide rail seat (61) is fixedly connected to the front side of the frame (1). Three crossbeam plates (62) are movably connected to the guide rail seat (61), and vertical guide sleeves (63) are fixedly connected to both sides of the crossbeam plates (62). Vertical guide rods (64) are vertically movably connected to each vertical guide sleeve (63). There are three cylinders (65), and the three cylinders (65) are respectively fixedly connected to the center of the upper side of the corresponding crossbeam plate (62); There are three pressure plates (66). The upper sides of the three pressure plates (66) are fixedly connected to the lower ends of the corresponding vertical guide rods (64), and the upper center of the three pressure plates (66) is fixedly connected to the lower piston rod ends of the corresponding cylinder four (65).

5. A tube expander according to claim 4, characterized in that: The pressure plate (66) is made of aluminum profile.

6. A tube expander according to claim 1, characterized in that: The specific mechanism of the gripper translation mechanism (7) includes a lead screw mechanism four (71), a translation seat (72), a lead screw mechanism five (73), a tensioning seat (74), a gripper sleeve (75), a copper tube gripper (76), a double guide rail (77), a transverse seat (78), a telescopic seat (79), a reaming head (710), an eccentric wheel (711), a motor one (712), a driven pulley (713), a synchronous belt (714), a driving pulley (715), and a motor two (716). The lead screw mechanism four (71) is located on the upper side of the center of the frame (1); The translation seat (72) is movably connected to the front center of the frame (1). The threaded holes on both sides of the translation seat (72) are connected to the lead screw mechanism four (71). The rear side of the translation seat (72) is provided with lead screw mechanism five (73). There are several gripper sleeves (75), and the rear exterior of several gripper sleeves (75) are fixedly connected to the front side of the translation seat (72); The double guide rail (77) is fixedly connected to the upper front side of the translation seat (72), and the transverse seat (78) is movably connected to the double guide rail (77), and the motor (712) is fixedly connected to the right side of the transverse seat (78). The telescopic seat (79) is longitudinally movably connected to the front side of the transverse seat (78), and several enlarged head (710) are fixedly connected to the front side of the telescopic seat (79). The eccentric wheel (711) is movably connected to the inside of the telescopic seat (79), and the inside of the eccentric wheel (711) is fixedly connected to the output shaft of motor one (712); The driven pulley (713) is movably connected to the right side of the double guide rail (77); The second motor (716) is fixedly connected to the upper left side of the double guide rail (77). The output shaft of the second motor (716) is fixedly connected to the drive pulley (715), and the drive pulley (715) is connected to the driven pulley (713) through the synchronous belt (714). The rear side of the transverse shifter (78) is fixedly connected to the front side of the synchronous belt (714); The tensioning seat (74) is movably connected to the rear side of the translation seat (72). The threaded hole on the side of the tensioning seat (74) is connected to the lead screw mechanism (73). Several copper tube clamps (76) are fixedly connected to the front side of the tensioning seat (74), and the front external side of the copper tube clamps (76) is movably connected to the inside of the corresponding clamp sleeve (75).

7. A tube expander according to claim 6, characterized in that: The motor 1 (712) is a servo motor with a speed reducer.

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