A D-type aluminum tube automated production mold

Abstract

The invention discloses an automatic production mold for a D-shaped aluminum tube, which relates to the technical field of aluminum tube processing and solves the problem of time-consuming and labor-intensive processing of the front end of the aluminum tube. The mold comprises a frame, a mold base, a stretching part, a driving part and a D-shaped mold. The mold base, the stretching part and the driving part are all mounted on the frame, the stretching part is transmission-connected to the driving part, the D-shaped mold is fixed on the mold base, and an auxiliary shrinking device for processing the front end of the aluminum tube to be processed is fixedly mounted on one side of the mold base; the auxiliary shrinking device comprises a mounting frame, a tube pressing mechanism, a tube feeding mechanism and a lubricating mechanism. The auxiliary shrinking device designed in the present invention can automatically process the front end of the aluminum tube to be processed, avoid the problem of time-consuming, labor-intensive and low-efficiency caused by manual hammering, and can also shrink and shape aluminum tubes of various diameters and different quantities, thereby greatly improving the scope of application of the automatic production mold for the D-shaped aluminum tube.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum tube processing, in particular to an automatic production mold for a D-shaped aluminum tube. Background Art

[0002] To achieve energy conservation, consumption reduction, and emission reduction, automotive air conditioning systems are increasingly using high-strength aluminum tubes and aluminum profiles, such as manifolds on parallel-flow evaporators. Some products are constructed from parallel D-shaped tubes. Forming these D-shaped tubes requires the coordinated use of molds and tube drawing machines.

[0003] Currently, when stretching a D-shaped tube, the front end of the pre-formed aluminum tube is first passed through the die through-hole. The stretching machine's drive unit drives the stretching unit to move along the machine frame, pulling the entire aluminum tube through the die. Under the extrusion pressure of the die through-hole, the aluminum tube is stretched to form the desired D-shaped tube with an outer diameter equal to the inner diameter of the die through-hole. However, before forming, the front end of the aluminum tube must be hammered to reduce the outer diameter of the front end of the aluminum tube. The aluminum tube is then manually inserted into the die through-hole. This manual hammering requires an operator to be constantly at the die and hammer the front end. This manual hammering is not only laborious and wasteful, but also time-consuming and inefficient due to the large number of aluminum tubes processed. To address this issue, we propose an automated production mold for D-shaped aluminum tubes. Summary of the Invention

[0004] The purpose of the present invention is to provide a time-saving, labor-saving and highly efficient D-shaped aluminum tube automated production mold to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a D-shaped aluminum tube automated production mold, comprising a frame, a mold base, a stretching part, a driving part and a D-shaped mold, wherein the mold base, the stretching part and the driving part are all mounted on the frame, the stretching part is transmission-connected to the driving part, the D-shaped mold is fixed on the mold base, and an auxiliary shrinking device for processing the front end of the aluminum tube to be processed is fixedly mounted on one side of the mold base; the auxiliary shrinking device comprises a mounting frame, a pipe pressing mechanism, a pipe feeding mechanism and a lubrication mechanism, the mounting frame is fixed on the frame, a circular hole is provided on the mounting frame, the center of the D-shaped mold and the center of the circular hole are located on the same axis, the pipe pressing mechanism is provided with three groups, and the three groups of the pipe pressing mechanisms are mounted on the mounting frame in a circular array, the pipe feeding mechanism is fixed on the side of the mounting frame away from the mold base, and the lubrication mechanism is mounted above the top of the mounting frame.

[0006] Preferably, the pipe pressing mechanism includes an arc-shaped extrusion plate, a threaded column, a threaded sleeve, a first bearing seat, a first L-shaped plate, a transmission bevel gear, a slider and a slide rail, the arc-shaped extrusion plate is arranged in a circular hole, the threaded column is fixed on the top of the arc-shaped extrusion plate, one end of the threaded sleeve is fixed in the center hole of the transmission bevel gear, the threaded column is threadedly connected to the inner side of the threaded sleeve, and the outer side of the threaded sleeve is rotatably connected to the first bearing seat, one end of the first bearing seat is fixed to one side of the mounting frame by a bolt, the first L-shaped plate is fixed to one end of the threaded column away from the arc-shaped extrusion plate, the slider is fixed to one end of the first L-shaped plate away from the threaded column, the slide rail is fixed to a side of the mounting frame away from the mold seat and is slidably connected to the slider, and the mounting frame is also equipped with a first driving member for driving the three transmission bevel gears to rotate together, and the head of the aluminum tube extending into the mounting frame can be reduced by the pipe pressing mechanism.

[0007] Preferably, the first driving member includes a second L-shaped plate, a first motor, a second bearing seat, a first driving gear, a gear sleeve and a driving bevel gear disk, the first motor is fixedly connected to the bottom of one side of the mounting frame through the second L-shaped plate, the output shaft of the first motor is rotatably connected to the mounting frame through the second bearing seat, the second bearing seat is fixed to the bottom of one side of the mounting frame by bolts, the output shaft of the first motor away from the second L-shaped plate passes through the interior of the mounting frame and extends to the right side of the mounting frame and is fixedly connected to the first driving gear, the gear sleeve is fixedly sleeved on the rear side of the driving bevel gear disk and is rotatably connected to the right side wall of the mounting frame, the first driving gear is meshed with the driving bevel gear disk, and the three transmission bevel gears are evenly meshed at equal angles on the outside of the driving bevel gear disk, and the first driving member can provide power for the movement of the pipe pressing mechanism.

[0008] Preferably, the pipe feeding mechanism includes a third L-shaped plate, a second motor, a third bearing seat, a movable seat, a one-way screw, a first guide rod and a clamping assembly, the second motor is fixed to one end of the top of the third L-shaped plate, one end of the one-way screw is fixedly connected to the output end of the second motor through a coupling, both sides of the one-way screw are rotatably connected to the third bearing seat, the third bearing seat is fixed to the third L-shaped plate, the movable seat is threadedly connected to the outside of the one-way screw, the first guide rod is slidably sleeved on the inside of the movable seat and its two ends are respectively fixedly connected to the outsides of the two third bearing seats, the clamping assembly is arranged on the top of the movable seat and is used to clamp and fix the aluminum tube to be processed, and the aluminum tube can be fixed and transported through the pipe feeding mechanism.

[0009] Preferably, the clamping assembly includes a fourth L-shaped plate, a bidirectional screw, a second guide rod and a second driving member, two fourth L-shaped plates are provided, and the two fourth L-shaped plates are respectively fixed at both ends of the movable seat, two movable plates are symmetrically provided between the two fourth L-shaped plates, two clamping blocks are symmetrically fixed on the side where the two movable plates are close to each other, and the two movable plates are respectively threadedly connected to the two sides of the bidirectional screw, both ends of the bidirectional screw are rotatably connected to the two fourth L-shaped plates through bearings, both ends of the second guide rod are respectively fixedly connected to the two fourth L-shaped plates, and the second driving member is transmission-connected to the middle part of the bidirectional screw, and the aluminum tube can be clamped by the clamping assembly.

[0010] Preferably, the second driving member includes a third motor, a rotating shaft, a fourth bearing seat, a second driving gear and a transmission gear. The third motor is fixed on the movable seat. The rotating shaft is fixedly connected to the output end of the third motor through a coupling. The fourth bearing seat is rotatably connected to the outside of the rotating shaft. The second driving gear is fixed to the outside of the middle part of the rotating shaft. The transmission gear is fixed to the outside of the middle part of the bidirectional screw. The transmission gear is meshed with the second driving gear, and power can be provided to the clamping assembly through the second driving member.

[0011] Preferably, the lubricating mechanism includes an oil storage cylinder, a fixing frame, an oil guide pipe, a lifting rod, a control assembly and a partition plate. The oil storage cylinder is fixedly connected to the mounting frame through the fixing frame. Three oil guide pipes are provided, and one end of the three oil guide pipes extends to the top of the three transmission bevel gears respectively. The lifting rod slides and inserts into the interior of the oil storage cylinder. The control assembly is installed on the fixing frame and is transmission-connected to the bottom of the lifting rod. The partition plate is fixed to the interior of the oil storage cylinder, and the partition plate divides the oil storage cylinder into two parts, a main oil chamber and a secondary oil chamber. A conical block is fixed to the outside of the lifting rod, and a through groove adapted to the conical block is provided on the partition plate. The other end of the three oil guide pipes is connected to the interior of the secondary oil chamber. The lubricating mechanism can provide lubricating oil to the gears when the pipes are pressed, thereby ensuring stable meshing between the gears.

[0012] Preferably, the control component includes a first rack, a linkage gear, a linkage shaft, a fifth bearing seat and a second rack, the first rack is fixed to the bottom end of the lifting rod, the first rack and the second rack are respectively engaged on both sides of the linkage gear, the linkage shaft is fixed in the center hole of the linkage gear, and both ends of the linkage shaft are rotatably connected to the fifth bearing seat, the fifth bearing seat is fixed to the outside of the fixed frame, the bottom end of the second rack is fixedly connected to the top of the first L-shaped plate, and the control component can provide a linkage effect for the opening of the oil storage cylinder when the threaded column moves.

[0013] Preferably, an oil replenishing pipe communicating with the main oil chamber inside the oil storage cylinder is provided on the top of the oil storage cylinder. The oil storage cylinder is made of transparent plastic material, and an external oil supply system can be connected through the oil replenishing pipe to replenish the oil storage cylinder.

[0014] Preferably, a V-shaped groove is provided on one side of the clamping block, and a rubber pad is fixed to the inner wall of the V-shaped groove, so that the force applied to the aluminum tube is more uniform when clamped.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The auxiliary shrinking device designed in the present invention can automatically process the front end of the aluminum tube to be processed, avoiding the time-consuming, labor-intensive and inefficient problems of manual hammering. In addition, it can shrink and shape aluminum tubes of various diameters and different quantities, greatly improving the applicability of the D-shaped aluminum tube automatic production mold.

[0017] 2. The present invention is designed with a tube feeding mechanism that can move the shrunken aluminum tube so that the head of the shrunken aluminum tube can automatically enter the through groove of the D-shaped mold.

[0018] 3. The lubrication mechanism designed in the present invention can provide lubricating oil to the gears used in the transmission process when pressing the pipe, ensuring stable engagement between the gears. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic structural diagram of the auxiliary shrinking device of the present invention;

[0021] Figure 3 This is a schematic structural diagram of the pipe pressing mechanism of the present invention;

[0022] Figure 4 For the present invention Figure 4 Schematic diagram of the structure from another perspective;

[0023] Figure 5 This is a schematic structural diagram of the first driving member of the present invention;

[0024] Figure 6 This is a schematic structural diagram of the pipe delivery mechanism of the present invention;

[0025] Figure 7 This is a schematic diagram of the structure of the clamping assembly of the present invention;

[0026] Figure 8 for Figure 7 Enlarged view of area A in the middle;

[0027] Figure 9 It is a side view of a local structure of the present invention;

[0028] Figure 10 This is a structural diagram of the lubrication mechanism of the present invention;

[0029] Figure 11 This is a schematic diagram of the cross-sectional structure of the oil storage cylinder of the present invention;

[0030] Figure 12 Schematic diagram of the control component structure of the present invention.

[0031] In the figure: 1-frame; 2-die base; 3-stretching part; 4-driving part; 5-D-type die; 6-auxiliary shrinking device; 7-mounting frame; 8-tube pressing mechanism; 9-tube feeding mechanism; 10-lubricating mechanism; 11-arc extrusion plate; 12-threaded column; 13-threaded sleeve; 14-first bearing seat; 15-first L-shaped plate; 16-transmission bevel gear; 17-slider; 18-slide rail; 19-first driving member; 20-second L-shaped plate; 21-first motor; 22-second bearing seat; 23-first driving gear; 24-gear sleeve; 25-driving bevel gear disc; 26-third L-shaped plate; 27-second motor; 28-third bearing seat; 29- Moving seat; 30-one-way screw; 31-first guide rod; 32-clamping assembly; 33-fourth L-shaped plate; 34-moving plate; 35-clamping block; 36-two-way screw; 37-second guide rod; 38-second driving member; 39-third motor; 40-rotating shaft; 41-fourth bearing seat; 42-second driving gear; 43-transmission gear; 44-oil storage cylinder; 45-fixed frame; 46-oil guide pipe; 47-lifting rod; 48-control assembly; 49-oil supply pipe; 50-partition plate; 51-through groove; 52-tapered block; 53-first rack; 54-linkage gear; 55-linkage shaft; 56-fifth bearing seat; 57-second rack. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only 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 making creative efforts are within the scope of protection of the present invention.

[0033] Example 1

[0034] like Figure 1 and Figure 2As shown in the figure, a D-shaped aluminum tube automated production mold includes a frame 1, a mold base 2, a stretching part 3, a driving part 4 and a D-shaped mold 5. The mold base 2, the stretching part 3 and the driving part 4 are all installed on the frame 1. The stretching part 3 is transmission-connected to the driving part 4. The D-shaped mold 5 is fixed on the mold base 2. An auxiliary shrinking device 6 for processing the front end of the aluminum tube to be processed is fixedly installed on one side of the mold base 2; the auxiliary shrinking device 6 includes a mounting frame 7, a tube pressing mechanism 8, a tube feeding mechanism 9 and a lubricating mechanism 10. The mounting frame 7 is fixed on the frame 1 and has a circular hole. The center of the D-shaped mold 5 and the center of the circular hole are located on the same axis. There are three groups of tube pressing mechanisms 8, and the three groups of tube pressing mechanisms 8 are installed in a circular array on the mounting frame 7. The tube feeding mechanism 9 is fixed on the side of the mounting frame 7 away from the mold base 2. The lubrication mechanism 10 is installed above the top of the mounting frame 7. Through the designed auxiliary shrinking device 6, the front end of the aluminum tube to be processed can be automatically processed, avoiding the time-consuming, labor-intensive and inefficient problems of manual hammering. In addition, it can also shrink and form aluminum tubes of various diameters and different quantities, greatly improving the applicability of the D-shaped aluminum tube automated production mold.

[0035] Among them, Figure 3 and Figure 4 As shown, in order to be able to shrink the head of the aluminum tube extending into the mounting frame 7, the tube pressing mechanism 8 includes an arc-shaped extrusion plate 11, a threaded column 12, a threaded sleeve 13, a first bearing seat 14, a first L-shaped plate 15, a transmission bevel gear 16, a slider 17 and a slide rail 18. The arc-shaped extrusion plate 11 is arranged in a circular hole, the threaded column 12 is fixed to the top of the arc-shaped extrusion plate 11, one end of the threaded sleeve 13 is fixed in the center hole of the transmission bevel gear 16, the threaded column 12 is threadedly connected to the inner side of the threaded sleeve 13, and the outer side of the threaded sleeve 13 is rotatably connected to the first bearing seat 14. One end of the first bearing seat 14 is fixed to one side of the mounting frame 7 by bolts, the first L-shaped plate 15 is fixed to the end of the threaded column 12 away from the arc-shaped extrusion plate 11, the slider 17 is fixed to the end of the first L-shaped plate 15 away from the threaded column 12, the slide rail 18 is fixed to the side of the mounting frame 7 away from the mold base 2 and is slidably connected to the slider 17. The mounting frame 7 is also equipped with a first driving member 19 for driving the three transmission bevel gears 16 to rotate together.

[0036] At the same time, if Figure 4 and Figure 5As shown, in order to provide power for the movement of the pipe pressing mechanism 8, the first driving member 19 includes a second L-shaped plate 20, a first motor 21, a second bearing seat 22, a first driving gear 23, a gear sleeve 24 and a driving bevel gear disc 25. The first motor 21 is fixedly connected to the bottom of one side of the mounting frame 7 through the second L-shaped plate 20, and the output shaft of the first motor 21 is rotatably connected to the mounting frame 7 through the second bearing seat 22. The second bearing seat 22 is fixed to the bottom of one side of the mounting frame 7 by bolts. The end of the output shaft of the first motor 21 away from the second L-shaped plate 20 passes through the interior of the mounting frame 7 and extends to the right side of the mounting frame 7 and is fixedly connected to the first driving gear 23. The gear sleeve 24 is fixedly sleeved on the rear side of the driving bevel gear disc 25 and is rotatably connected to the right side wall of the mounting frame 7. The first driving gear 23 is meshed with the driving bevel gear disc 25, and the three transmission bevel gears 16 are evenly meshed at equal angles on the outside of the driving bevel gear disc 25.

[0037] Specific implementation method: first, the aluminum tube to be processed is clamped and fixed by the tube feeding mechanism 9, and then the aluminum tube head is transported to the circular hole of the mounting frame 7 through the tube feeding mechanism 9, and then the first motor 21 is started to work, and the first motor 21 drives the first driving gear 23 to rotate, and the first driving gear 23 drives the gear sleeve 24 to rotate, and the gear sleeve 24 drives the driving bevel gear disc 25 to perform orbital motion, thereby driving the three transmission bevel gears 16 meshing thereon to rotate together, and when the three transmission bevel gears 16 rotate together, the three threaded sleeves 13 will drive the three threaded columns 12 to move closer to each other under the limiting action of the slider 17 and the slide rail 18, thereby driving the three arc-shaped extrusion plates 11 to move together in the direction close to the surface of the aluminum tube, and one side of the three arc-shaped extrusion plates 11 is in contact with the surface of the aluminum tube, and the three threaded columns 12 continue to move to drive the three arc-shaped extrusion plates 11 to extrude the aluminum tube head, thereby automatically processing the front end of the aluminum tube to be processed.

[0038] Example 2

[0039] like Figure 6As shown, this embodiment further illustrates Example 1. The pipe feeding mechanism 9 shown in the figure includes a third L-shaped plate 26, a second motor 27, a third bearing seat 28, a movable seat 29, a one-way screw 30, a first guide rod 31 and a clamping assembly 32. The second motor 27 is fixed to one end of the top of the third L-shaped plate 26, and one end of the one-way screw 30 is fixedly connected to the output end of the second motor 27 through a coupling. Both sides of the one-way screw 30 are rotatably connected to the third bearing seat 28, and the third bearing seat 28 is fixed on the third L-shaped plate 26. The movable seat 29 is threadedly connected to the outside of the one-way screw 30, and the first guide rod 31 is slidably sleeved inside the movable seat 29 and its two ends are respectively fixedly connected to the outsides of the two third bearing seats 28. The clamping assembly 32 is provided at the top of the movable seat 29 and is used to clamp and fix the aluminum tube to be processed. The aluminum tube can be fixed and transported by the pipe feeding mechanism 9.

[0040] Among them, Figure 7 As shown, in order to clamp the aluminum tube, the clamping assembly 32 includes a fourth L-shaped plate 33, a bidirectional screw 36, a second guide rod 37 and a second drive member 38. Two fourth L-shaped plates 33 are provided, and the two fourth L-shaped plates 33 are respectively fixed at the two ends of the movable seat 29. Two movable plates 34 are symmetrically arranged between the two fourth L-shaped plates 33. Two clamping blocks 35 are symmetrically fixed on the side where the two movable plates 34 are close to each other, and the two movable plates 34 are respectively threadedly connected to the two sides of the bidirectional screw 36. Both ends of the bidirectional screw 36 are rotatably connected to the two fourth L-shaped plates 33 through bearings. Both ends of the second guide rod 37 are respectively fixedly connected to the two fourth L-shaped plates 33. The second drive member 38 is transmission-connected to the middle part of the bidirectional screw 36.

[0041] In addition, if Figure 8 As shown, in order to provide power for the clamping assembly 32, the second driving member 38 includes a third motor 39, a rotating shaft 40, a fourth bearing seat 41, a second driving gear 42 and a transmission gear 43. The third motor 39 is fixed on the movable seat 29, and the rotating shaft 40 is fixedly connected to the output end of the third motor 39 through a coupling. The fourth bearing seat 41 is rotatably connected to the outside of the rotating shaft 40, the second driving gear 42 is fixed to the outside of the middle part of the rotating shaft 40, and the transmission gear 43 is fixed to the outside of the middle part of the bidirectional screw rod 36. The transmission gear 43 is meshed with the second driving gear 42.

[0042] At the same time, if Figure 7 As shown, in order to make the force applied to the aluminum tube more uniform when clamping, a V-shaped groove is provided on one side of the clamping block 35, and a rubber pad is fixed to the inner wall of the V-shaped groove.

[0043] When transporting the aluminum tube: first, place the aluminum tube in the V-shaped groove of the clamping block 35 between the two fourth L-shaped plates 33, then start the third motor 39 to work, the third motor 39 drives the rotating shaft 40 to rotate, the rotating shaft 40 drives the second driving gear 42 to rotate, the second driving gear 42 drives the transmission gear 43 to rotate, the transmission gear 43 drives the bidirectional screw rod 36 to rotate, the bidirectional screw rod 36 drives the two moving plates 34 to move closer to each other, so that the clamping block 35 clamps the aluminum tube, and after clamping, start the second motor 27 to work, the second motor 27 drives the one-way screw rod 30 to rotate, and the one-way screw rod 36 drives the two moving plates 34 to move closer to each other, so that the clamping block 35 clamps the aluminum tube. The screw rod 30 drives the movable seat 29 to move, and the aluminum tube head clamped on the movable seat 29 is transported to the circular hole of the mounting frame 7, and then it is shrunk by the tube pressing mechanism 8 and the second motor 27 is started to work, and then the movable seat 29 is continuously moved to the right so that the shrunk aluminum tube head enters the through groove 51 of the D-shaped mold 5. The stretching part 3 will clamp the aluminum tube, and the driving part 4 drives the stretching part 3 to move along the frame 1, pulling the entire aluminum tube through the mold, so that the aluminum tube is stretched under the extrusion pressure of the through hole of the D-shaped mold 5 to form the required D-shaped tube with the same outer diameter as the inner diameter of the mold through hole.

[0044] Example 3

[0045] like Figure 9-11 As shown, this embodiment further illustrates Example 1. The lubricating mechanism 10 shown in the figure includes an oil storage cylinder 44, a fixing frame 45, an oil guide pipe 46, a lifting rod 47, a control component 48 and a partition plate 50. The oil storage cylinder 44 is fixedly connected to the mounting frame 7 through the fixing frame 45. There are three oil guide pipes 46. One end of the three oil guide pipes 46 extends to the top of the three transmission bevel gears 16 respectively. The lifting rod 47 slides and penetrates the interior of the oil storage cylinder 44. The control component 48 is mounted on the fixing frame 45 and is transmission-connected to the bottom of the lifting rod 47. The partition plate 50 is fixed to the interior of the oil storage cylinder 44 and divides the oil storage cylinder 44 into two parts: a main oil chamber and a secondary oil chamber. A conical block 52 is fixed to the outside of the lifting rod 47, and a through groove 51 is opened on the partition plate 50 to match the conical block 52. The other end of the three oil guide pipes 46 is connected to the interior of the secondary oil chamber. Through the lubrication mechanism 10, lubricating oil can be provided to the gears when the pipe is pressed to ensure stable engagement between the gears.

[0046] Among them, Figure 12As shown, in order to provide a linkage effect for the opening of the oil storage cylinder 44 when the threaded column 12 moves, the control component 48 includes a first rack 53, a linkage gear 54, a linkage shaft 55, a fifth bearing seat 56 and a second rack 57. The first rack 53 is fixed to the bottom end of the lifting rod 47, and the first rack 53 and the second rack 57 are respectively engaged with the two sides of the linkage gear 54. The linkage shaft 55 is fixed in the center hole of the linkage gear 54, and both ends of the linkage shaft 55 are rotatably connected to the fifth bearing seat 56. The fifth bearing seat 56 is fixed to the outside of the fixed frame 45, and the bottom end of the second rack 57 is fixedly connected to the top of the first L-shaped plate 15.

[0047] In addition, if Figure 10 As shown, in order to connect to an external oil supply system to replenish the oil storage cylinder 44, an oil replenishing pipe 49 is provided on the top of the oil storage cylinder 44 and is connected to the main oil chamber inside the oil storage cylinder 44. The oil storage cylinder 44 is made of transparent plastic material.

[0048] During lubrication: the threaded column 12 moves downward, which drives the first L-shaped plate 15 to move downward, and the first L-shaped plate 15 drives the second rack 57 to move downward, driving the linkage gear 54 to rotate, and the linkage gear 54 drives the first rack 53 to move upward, thereby driving the lifting rod 47 to move upward, so that the conical block 52 is temporarily moved out of the through groove 51, so that the main oil chamber and the auxiliary oil chamber are connected, and the lubricating oil in the main oil chamber will flow into the auxiliary oil chamber through the through groove 51, and then the lubricating oil in the auxiliary oil chamber will be guided to the meshing position of the three transmission bevel gears 16 and the driving bevel gear disc 25 through three oil guide pipes 46 in different directions, so that the gears can be lubricated in linkage during the shrinking process.

[0049] In this solution, the first motor 21, the second motor 27 and the third motor 39 are preferably Y80M1-2 models. The power supply interface of the motor is connected to the power supply system through a switch. The motor operation circuit is a conventional motor forward and reverse control program. The circuit operation is an existing conventional circuit. The circuits and controls involved in this solution are all existing technologies and will not be elaborated on here.

[0050] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0051] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A D-shaped aluminum tube automated production mold, comprising a frame (1), a mold base (2), a stretching portion (3), a driving portion (4) and a D-shaped mold (5), wherein the mold base (2), the stretching portion (3) and the driving portion (4) are all mounted on the frame (1), the stretching portion (3) is in transmission connection with the driving portion (4), and the D-shaped mold (5) is fixed on the mold base (2), characterized in that: An auxiliary shrinking device (6) for processing the front end of the aluminum tube to be processed is fixedly installed on one side of the mold base (2); the auxiliary shrinking device (6) includes a mounting frame (7), a tube pressing mechanism (8), a tube feeding mechanism (9) and a lubricating mechanism (10); the mounting frame (7) is fixed on the machine frame (1); a circular hole is opened on the mounting frame (7); the center of the D-shaped mold (5) and the center of the circular hole are located on the same axis; the tube pressing mechanism (8) is provided with three groups, and the three groups of the tube pressing mechanisms (8) are installed on the mounting frame (7) in a circular array; the tube feeding mechanism (9) is fixed on the side of the mounting frame (7) away from the mold base (2); and the lubricating mechanism (10) is installed above the top of the mounting frame (7); The pipe pressing mechanism (8) comprises an arc-shaped extrusion plate (11), a threaded column (12), a threaded sleeve (13), a first bearing seat (14), a first L-shaped plate (15), a transmission bevel gear (16), a slider (17) and a slide rail (18), wherein the arc-shaped extrusion plate (11) is arranged in a circular hole, the threaded column (12) is fixed on the top of the arc-shaped extrusion plate (11), one end of the threaded sleeve (13) is fixed in the center hole of the transmission bevel gear (16), the threaded column (12) is threadedly connected to the inner side of the threaded sleeve (13), and the outer side of the threaded sleeve (13) is rotatably connected to the first bearing seat. In the seat (14), one end of the first bearing seat (14) is fixed to one side of the mounting frame (7) by a bolt, the first L-shaped plate (15) is fixed to one end of the threaded column (12) away from the arc-shaped extrusion plate (11), the slider (17) is fixed to one end of the first L-shaped plate (15) away from the threaded column (12), the slide rail (18) is fixed to one side of the mounting frame (7) away from the mold seat (2) and is slidably connected to the slider (17), and the mounting frame (7) is also equipped with a first driving member (19) for driving the three transmission bevel gears (16) to rotate together; The lubricating mechanism (10) includes an oil storage cylinder (44), a fixing frame (45), an oil guide pipe (46), a lifting rod (47), a control assembly (48) and a partition plate (50). The oil storage cylinder (44) is fixedly connected to the mounting frame (7) through the fixing frame (45). Three oil guide pipes (46) are provided. One end of the three oil guide pipes (46) extends above the three transmission bevel gears (16) respectively. The lifting rod (47) slides and penetrates the interior of the oil storage cylinder (44). The control assembly (48) is mounted on the fixing frame (45) and is in driving connection with the bottom of the lifting rod (47); the partition plate (50) is fixed inside the oil storage cylinder (44), and the partition plate (50) divides the oil storage cylinder (44) into two parts, namely the main oil chamber and the auxiliary oil chamber; a conical block (52) is fixed on the outside of the lifting rod (47); a through groove (51) adapted to the conical block (52) is provided on the partition plate (50); the other end of the three oil guide pipes (46) is connected to the inside of the auxiliary oil chamber.

2. The D-shaped aluminum tube automated production mold according to claim 1, characterized in that: The first driving member (19) includes a second L-shaped plate (20), a first motor (21), a second bearing seat (22), a first driving gear (23), a gear sleeve (24) and a driving bevel gear plate (25), wherein the first motor (21) is fixedly connected to the bottom of one side of the mounting frame (7) through the second L-shaped plate (20), and the output shaft of the first motor (21) is rotationally connected to the mounting frame (7) through the second bearing seat (22), and the second bearing seat (22) is fixed to the bottom of one side of the mounting frame (7) by bolts. One end of the output shaft of the first motor (21) away from the second L-shaped plate (20) passes through the interior of the mounting frame (7) and extends to the right side of the mounting frame (7) and is fixedly connected to the first driving gear (23); the gear sleeve (24) is fixedly sleeved on the rear side of the driving bevel gear disk (25) and is rotatably connected to the right side wall of the mounting frame (7); the first driving gear (23) is meshed with the driving bevel gear disk (25); and the three transmission bevel gears (16) are evenly meshed at equal angles on the outside of the driving bevel gear disk (25).

3. The D-shaped aluminum tube automated production mold according to claim 1, characterized in that: The pipe feeding mechanism (9) includes a third L-shaped plate (26), a second motor (27), a third bearing seat (28), a movable seat (29), a one-way screw (30), a first guide rod (31) and a clamping assembly (32), wherein the second motor (27) is fixed to one end of the top of the third L-shaped plate (26), one end of the one-way screw (30) is fixedly connected to the output end of the second motor (27) through a coupling, both sides of the one-way screw (30) are rotatably connected to the third bearing seat (28), the third bearing seat (28) is fixed on the third L-shaped plate (26), the movable seat (29) is threadedly connected to the outer side of the one-way screw (30), the first guide rod (31) is slidably sleeved inside the movable seat (29) and its two ends are respectively fixedly connected to the outer sides of the two third bearing seats (28), and the clamping assembly (32) is arranged on the top of the movable seat (29) and is used to clamp and fix the aluminum tube to be processed.

4. The automated production mold for D-shaped aluminum tubes according to claim 3, characterized in that: The clamping assembly (32) includes a fourth L-shaped plate (33), a bidirectional screw rod (36), a second guide rod (37) and a second driving member (38). Two fourth L-shaped plates (33) are provided, and the two fourth L-shaped plates (33) are respectively fixed at the two ends of the movable seat (29). Two movable plates (34) are symmetrically provided between the two fourth L-shaped plates (33). Two clamping blocks (35) are symmetrically fixed on the sides of the two movable plates (34) close to each other, and the two movable plates (34) are respectively threadedly connected to the two sides of the bidirectional screw rod (36). Both ends of the bidirectional screw rod (36) are rotatably connected to the two fourth L-shaped plates (33) through bearings. Both ends of the second guide rod (37) are respectively fixedly connected to the two fourth L-shaped plates (33). The second driving member (38) is transmission-connected to the middle of the bidirectional screw rod (36).

5. The automated production mold for D-shaped aluminum tubes according to claim 4, characterized in that: The second driving member (38) includes a third motor (39), a rotating shaft (40), a fourth bearing seat (41), a second driving gear (42) and a transmission gear (43), wherein the third motor (39) is fixed on the movable seat (29), the rotating shaft (40) is fixedly connected to the output end of the third motor (39) through a coupling, the fourth bearing seat (41) is rotatably connected to the outside of the rotating shaft (40), the second driving gear (42) is fixed to the outside of the middle of the rotating shaft (40), the transmission gear (43) is fixed to the outside of the middle of the bidirectional screw rod (36), and the transmission gear (43) is meshed with the second driving gear (42).

6. The automated production mold for D-shaped aluminum tubes according to claim 1, characterized in that: The control assembly (48) includes a first rack (53), a linkage gear (54), a linkage shaft (55), a fifth bearing seat (56) and a second rack (57), wherein the first rack (53) is fixed to the bottom end of the lifting rod (47), the first rack (53) and the second rack (57) are respectively engaged on both sides of the linkage gear (54), the linkage shaft (55) is fixed in the center hole of the linkage gear (54), and both ends of the linkage shaft (55) are rotatably connected to the fifth bearing seat (56), the fifth bearing seat (56) is fixed to the outside of the fixing frame (45), and the bottom end of the second rack (57) is fixedly connected to the top of the first L-shaped plate (15).

7. The automated production mold for D-shaped aluminum tubes according to claim 1, characterized in that: An oil replenishing pipe (49) communicating with the main oil chamber inside the oil storage cylinder (44) is provided on the top of the oil storage cylinder (44). The oil storage cylinder (44) is made of a transparent plastic material.

8. The automated production mold for D-shaped aluminum tubes according to claim 4, characterized in that: A V-shaped groove is provided on one side of the clamping block (35), and a rubber pad is fixed to the inner wall of the V-shaped groove.

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