Aluminum pipe stretching and expanding machine
Through the design of the mold disassembly of the aluminum tube stretching diameter, the structure of the seat and the holding of the wrapped seat, solve the problem of hidden safety hazards and aluminum pipe heat dissipation of the existing technologies, and realize the efficient and safe aluminum aluminum aluminum Pipe expansion process.
Patent Information
- Application Number
- CN202411343794.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-01-21
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the installation and expansion process of existing aluminum pipe diameter expansion machines, staff need to get close to the heat pipe, which poses safety hazards and has long operating time, which affects the heat dissipation and expansion effect of the aluminum pipe.
An aluminum tube stretching and expanding machine is designed, which adopts a mold disassembly and lifting seat structure and a clamping and wrapping seat structure to realize the rotation, disassembly, and heating positioning and clamping of the inner mold, ensuring that workers stay away from the expansion area and pass through Continuous heating controls the diameter expansion range.
It improves operational safety and efficiency, avoids excessive heat dissipation and hardening of the aluminum tube, and ensures the quality and consistency of diameter expansion.
Smart Images
Figure CN119327994A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of aluminum tube diameter expansion, and in particular relates to an aluminum tube stretching and diameter expanding machine. Background Art
[0002] The aluminum tube expander is a device used to expand the diameter of aluminum tubes. It mainly draws the aluminum tube and applies force through the die, so that the diameter of the tube increases by stretching the material to meet specific processing or assembly requirements. The equipment is used in the metal processing industry, but the expansion die is installed after the aluminum tube is installed. In the process of manually installing the expansion die, the worker is too close to the processing area, so the heated aluminum tube will affect the danger during work. In addition, the operation time is long during the installation and expansion process, so the aluminum tube dissipates heat quickly and becomes hard after cooling, which increases the difficulty of expansion. When expanding after subsequent heating, the expansion range cannot be controlled according to the heating range, which easily causes the unheated part of the aluminum tube to be expanded by the expansion structure and affects the expansion work. Summary of the invention
[0003] In order to solve the above technical problems, the present invention provides an aluminum tube stretching and expanding machine, which enables the staff to disassemble and assemble the expanding structure away from the expanding position, so that it is safe and convenient to operate and use. It can also continuously heat the aluminum tube to avoid the aluminum tube from dissipating heat too quickly and affecting the hardening and difficulty of expanding. Finally, the range of the expanded aluminum tube is controlled according to the range of continuous heating to avoid exceeding the heating range and affecting the expansion work.
[0004] The technical scheme is as follows: an aluminum tube stretching and expanding machine comprises a hollow box seat, the left side of the front end of the hollow box seat is bolted to a PLC; the right side of the upper surface of the hollow box seat is bolted to support a positioning support plate, and a core rod is inserted and connected to the middle part of the positioning support plate; the right side of the outer wall of the core rod is bolted to a push seat, and the left end of the core rod is threadedly connected to an inner mold; the front and rear sides of the right side of the hollow box seat are bolted to a first electric slide, and the sliding part of the first electric slide is bolted to the push seat; the front and rear sides of the right surface of the positioning support plate are bolted to the front and rear sides of the right side of the hollow box seat, and the sliding part of the first electric slide is bolted to the pushing seat; The two sides are bolted with a pushing hydraulic cylinder; the output shaft of the pushing hydraulic cylinder is bolted with a pushing tube plate, and is connected with the core rod in the middle; an interlaced long hole is opened on the upper left side of the hollow box seat; the front and rear sides of the hollow box seat are bolted with a pulling hydraulic cylinder, and its output shaft is bolted with a driving seat; the driving seat is inserted into the hollow box seat through the interlaced long hole; the upper end of the driving seat is bolted with a driving platform; the upper end of the driving platform is bolted with a pulling fixed seat; the inside of the pulling fixed seat is bolted with a tooling fixture; the middle part of the hollow box seat is installed A mold disassembly and assembly lifting seat structure is installed; the left side of the upper surface of the hollow box seat is bolted with a heating positioning clamping seat structure, and is arranged on the left side of the mold disassembly and assembly lifting seat structure; the left side of the upper surface of the hollow box seat supports a sizing outer mold, and is arranged on the left side of the heating positioning clamping seat structure; the drawing fixed seat and the sizing outer mold support a length detection box structure; the left side of the upper surface of the hollow box seat is bolted with a cooling insertion box structure, and is arranged on the left side of the sizing outer mold, characterized in that the mold disassembly and assembly lifting seat structure includes a positioning seat plate, and the front and rear sides of the upper surface of the positioning seat plate are bolted with a second electric slide, and the sliding part of the second electric slide is bolted with a lifting vertical plate; the top bolt of the lifting vertical plate supports a shielding cover plate; the lower side bolt of the left surface of the lifting vertical plate is connected to a gear box; the middle part of the inner part of the lifting vertical plate is inlaid with a connecting shaft column through a bearing; the right end of the connecting shaft column is connected to a clamping and wrapping seat structure; the lower end of the gear box is bolted with a servo motor; the upper end of the gear box is connected to a first bevel gear; the left side of the outer wall of the connecting shaft column is inlaid with a second bevel gear.
[0005] Preferably, the clamping and wrapping seat structure includes a U-shaped frame, and the front and rear sides of the U-shaped frame are bolted to a pushing electric slide; the front and rear sides of the U-shaped frame are provided with a fourth electric slide and a third electric slide, and are bolted to support the sliding part of the pushing electric slide; the first clamping sleeve is bolted to the sliding part on the surface of the third electric slide; the second clamping sleeve is bolted to the sliding part on the surface of the fourth electric slide.
[0006] Preferably, the positioning seat plate bolts are installed in the transverse middle portion of the interior of the hollow box seat, and the upper shielding cover plate is inserted above the interior of the hollow box seat.
[0007] Preferably, a through hole is provided in the middle portion of the connecting shaft column, which is connected to a cavity provided in the U-shaped frame seat, and cooperates with the connecting shaft column to connect the rotating joint to perform electrical connection work for the third electric slide, the fourth electric slide and the push electric slide.
[0008] Preferably, the inner sides of the first clamping sleeve and the second clamping sleeve are configured to be arc-shaped, and are movably supported on the inner side of the U-shaped frame.
[0009] Preferably, the left end of the U-shaped frame is connected to the right end of the connecting shaft column, and the third electric slide and the fourth electric slide are movably connected by pushing the electric slide.
[0010] Compared with the prior art, the present invention has the following beneficial effects:
[0011] In the present invention, the arrangement of the positioning seat plate, the second electric slide, the lifting vertical plate and the shielding cover plate drives the lifting and lowering activities of the clamping and wrapping seat structure that clamps the inner mold.
[0012] In the present invention, the gear box, servo motor, first bevel gear, connecting shaft column and second bevel gear are arranged to drive the U-shaped frame to rotate and cooperate with the inner mold to rotate and disassemble, so that the staff can be kept away from the expansion part and perform the disassembly and assembly of the inner mold safely and labor-savingly, thereby shortening the disassembly and assembly time and increasing work efficiency.
[0013] In the present invention, the third electric slide, the fourth electric slide, the first clamping sleeve and the second clamping sleeve are arranged to clamp and fix the inner mold so as to cooperate with its rotation.
[0014] In the present invention, the arrangement of the pushing electric slide drives the inner mold to move laterally during the process of rotating and installing the inner mold to realize auxiliary disassembly and assembly work. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of the present invention.
[0016] Figure 2 It is a structural schematic diagram of the mold disassembly and assembly lifting platform structure of the present invention.
[0017] Figure 3 It is a structural schematic diagram of the clamping and wrapping seat structure of the present invention.
[0018] Figure 4 It is a structural schematic diagram of the heating positioning clamping seat structure of the present invention.
[0019] Figure 5 It is a structural schematic diagram of the length detection box structure of the present invention.
[0020] Figure 6It is a structural schematic diagram of the cooling insertion box structure of the present invention.
[0021] In the figure:
[0022] 1. Hollow box seat; 2. PLC; 3. Positioning support plate; 4. Push seat; 5. First electric slide; 6. Core rod; 7. Push hydraulic cylinder; 8. Pull hydraulic cylinder; 9. Drive seat; 10. Drive platform; 11. Pull fixed seat; 12. Insert long hole; 13. Inner mold; 14. Mold disassembly and assembly lifting seat structure; 141. Positioning seat plate; 142. Second electric slide; 143. Lifting vertical plate; 144. Shielding cover; 145. Gear box; 146. Servo motor; 147. First bevel gear; 148. Clamping and wrapping seat structure; 1481. U-shaped frame; 1482. Third electric slide; 1483. Fourth electric slide; 1484. First clamping sleeve seat; 1485. Second clamping sleeve seat; 1 486, push electric slide; 149, connecting shaft column; 1410, second bevel gear; 15, heating positioning clamping seat structure; 151, lower wrapping seat; 152, fifth electric slide; 153, upper wrapping seat; 154, first electric heating tube; 155, second electric heating tube; 156, lower penetration hole; 157, upper penetration hole; 16, sizing outer mold; 17, length detection box structure; 171, positioning block; 172, infrared ranging sensor; 173, wrapping sleeve; 174, detection seat; 175, limiting plate; 18, cooling insertion box structure; 181, cooling box; 182, corresponding hole; 183, ball; 184, dust net; 185, cooling fan; 19, tooling fixture; 20, push tube plate. DETAILED DESCRIPTION
[0023] The present invention is further described below in conjunction with the accompanying drawings:
[0024] Example:
[0025] As attached Figure 1As shown, an aluminum tube stretching and expanding machine comprises a hollow box seat 1, and the left side of the front end of the hollow box seat 1 is bolted to the PLC2; the right side of the upper surface of the hollow box seat 1 is bolted to support the positioning support plate 3, and the middle part of the positioning support plate 3 is interlaced with the core rod 6; the right side of the outer wall of the core rod 6 is bolted to the pushing seat 4, and the end of the left side of the core rod 6 is threadedly connected with the inner mold 13; the front and rear sides of the right side of the hollow box seat 1 are bolted to the first electric slide 5, and the sliding part of the first electric slide 5 is bolted to the pushing seat 4; the front and rear sides of the right surface of the positioning support plate 3 are bolted to the pushing hydraulic cylinder 7; the output shaft of the pushing hydraulic cylinder 7 is bolted to the pushing tube plate 20, and is interlaced with the core rod 6 in the middle part; an interlaced long hole 12 is opened on the upper left side of the inside of the hollow box seat 1; the front and rear sides of the inside of the hollow box seat 1 are bolted to the drawing hydraulic cylinder 8, and And its output shaft is bolted to a driving seat 9; the driving seat 9 passes through the interlaced long hole 12 and is inserted into the hollow box seat 1; the upper end of the driving seat 9 is bolted to a driving platform 10; the upper end of the driving platform 10 is bolted to a drawing seat 11; the inside of the drawing seat 11 is bolted to a tooling fixture 19; a mold disassembly and assembly lifting seat structure 14 is installed in the middle part of the hollow box seat 1; the left side of the upper surface of the hollow box seat 1 is bolted to a heating positioning clamping seat structure 15, and is arranged on the left side of the mold disassembly and assembly lifting seat structure 14; the left side of the upper surface of the hollow box seat 1 is bolted to support a sizing outer mold 16, and is arranged on the left side of the heating positioning clamping seat structure 15; the length detection box structure 17 is supported on the drawing seat 11 and the sizing outer mold 16; the left side of the upper surface of the hollow box seat 1 is bolted to a cooling insertion box structure 18, and is arranged on the left side of the sizing outer mold 16.
[0026] As attached Figure 2 As shown, in the above embodiment, specifically, the mold disassembly and assembly lifting platform structure 14 includes a positioning seat plate 141, and the front and rear sides of the upper surface of the positioning seat plate 141 are bolted to the second electric slide 142, and the sliding member of the second electric slide 142 is bolted to the lifting vertical plate 143; the top of the lifting vertical plate 143 is bolted to support a shielding cover plate 144; the lower side of the left surface of the lifting vertical plate 143 is bolted to the gear box 145; the middle part of the inside of the lifting vertical plate 143 is inlaid with a connecting shaft column 149 through a bearing; the right end of the connecting shaft column 149 is connected to the clamping and wrapping seat structure 148; the lower end of the gear box 145 is bolted to the servo motor 146; the upper end of the gear box 145 is axially connected to the first bevel gear 147; the left side of the outer wall of the connecting shaft column 149 is inlaid with a second bevel gear 1410; the second electric slide 142 is driven to drive the lifting vertical plate 143 to rise and drive the inner mold 13 corresponding to the core rod 6 on the inner side of the U-shaped frame 1481.
[0027] As attached Figure 3As shown, in the above embodiment, specifically, the clamping and wrapping seat structure 148 includes a U-shaped frame 1481, and the front and rear sides of the U-shaped frame 1481 are both bolted to a pushing electric slide 1486; the front and rear sides of the U-shaped frame 1481 are both provided with a fourth electric slide 1483 and a third electric slide 1482, and the bolts are supported on the sliding part of the pushing electric slide 1486; the sliding part on the surface of the third electric slide 1482 is bolted to a first clamping sleeve 1484; a second clamping sleeve 1485 is bolted to the sliding part on the surface of the fourth electric slide 1483; the driving servo motor 146 cooperates with the gear box 145, the first bevel gear 147, the second bevel gear 1410 and the connecting shaft 149 to drive the U-shaped frame 1481 to rotate, so that the clamped inner mold 13 also rotates accordingly, and during the rotating installation process, the pushing electric slide 1486 inside the U-shaped frame 1481 pushes the inner mold 13 to move to realize the installation work.
[0028] As attached Figure 4 As shown, in the above embodiment, specifically, the heating positioning clamping seat structure 15 includes a lower wrapping seat 151 and an upper wrapping seat 153, and the front side bolts at the upper end of the lower wrapping seat 151 support the fifth electric slide 152; and the sliding part on the rear side of the fifth electric slide 152 is bolted to the upper wrapping seat 153; the upper wrapping seat 153 is inlaid with a first electric heating tube 154, and an upper through hole 157 is opened on the lower side; the lower wrapping seat 151 is inlaid with a second electric heating tube 155, and a lower through hole 156 is opened on the upper side; the aluminum tube moves in the upper through hole 157 and the lower through hole 156, and is heated by the first electric heating tube 154 and the second electric heating tube 155.
[0029] As attached Figure 5 As shown, in the above embodiment, specifically, the length detection box structure 17 includes a positioning block 171, and the infrared ranging sensor 172 is bolted to the middle part of the positioning block 171; the outer side of the right surface of the positioning block 171 is bolted to a wrapping sleeve 173; the outer side of the wrapping sleeve 173 is inserted with a detection seat 174; the end of the right side of the wrapping sleeve 173 is bolted to a limiting plate 175; during the expansion process, the pulling seat 11 drives the positioning block 171 and the wrapping sleeve 173 to move, so that the infrared ranging sensor 172 is driven to move by the positioning block 171 and cooperates with the positioned detection seat 174 to control the pulling length.
[0030] As attached Figure 6As shown, in the above embodiment, specifically, the cooling insertion box structure 18 includes a cooling box 181, and corresponding holes 182 are opened on the left and right sides of the middle part of the cooling box 181; a ball 183 is movably embedded on the lower side of the cooling box 181; a dustproof net 184 is embedded on the front side of the cooling box 181; a cooling fan 185 is bolted to the front end of the cooling box 181; and the cooling fan 185 blows air to dissipate heat when the sizing aluminum tube passes through the cooling box 181.
[0031] In the above embodiment, specifically, the positioning seat plate 141 is bolted to the middle part of the interior of the hollow box seat 1 , and the upper shielding cover plate 144 is inserted above the interior of the hollow box seat 1 .
[0032] In the above embodiment, specifically, a through hole is provided in the middle portion of the connecting shaft column 149, which is connected to a cavity provided in the U-shaped frame 1481, so as to cooperate with the connecting shaft column 149 to connect the rotating joint to perform electrical connection work of the third electric slide 1482, the fourth electric slide 1483 and the pushing electric slide 1486.
[0033] In the above embodiment, specifically, the inner sides of the first clamping sleeve 1484 and the second clamping sleeve 1485 are configured to be arc-shaped, and are movably supported on the inner side of the U-shaped frame 1481 .
[0034] In the above embodiment, specifically, the left end of the U-shaped frame 1481 is connected to the right end of the connecting shaft column 149, and the third electric slide 1482 and the fourth electric slide 1483 are movably connected by pushing the electric slide 1486.
[0035] In the above embodiment, specifically, the lower wrapping seat 151 is bolted to the upper surface of the hollow box seat 1 and is arranged on the left side of the shielding cover 144. The lower wrapping seat 151 is movably connected to the upper wrapping seat 153 through the fifth electric slide 152, and is installed and wrapped in conjunction with the aluminum tube for connection and use.
[0036] In the above embodiment, specifically, the first electric heating tube 154 and the second electric heating tube 155 are provided in plurality and are all around the outer sides of the lower penetration hole 156 and the upper penetration hole 157, so as to continuously heat the aluminum tube and keep the aluminum tube softened, thereby reducing the difficulty of expanding the diameter and increasing the work efficiency and quality.
[0037] In the above embodiment, specifically, the positioning block 171 is bolted to the surface of the drawing base 11, and the corresponding detection base 174 is bolted to the upper end of the sizing outer mold 16, and the length of the drawn aluminum tube is detected by the inner infrared ranging sensor 172, and then the drawing length is controlled according to the heating range, so that the drawing length exceeds the heating range and affects the diameter expansion work.
[0038] In the above embodiment, specifically, the wrapping cover 173 is configured to be an inverted U-shape and is compatible with the detection seat 174. The wrapping cover 173 is a PVC transparent cover to protect the detection site to prevent debris from blocking and affecting the detection accuracy.
[0039] In the above embodiment, specifically, the cooling box 181 is bolted on the surface of the hollow box seat 1, and is arranged between the sizing outer die 16 and the drawing and fixing seat 11, and is used in conjunction with the expanded aluminum tube for insertion.
[0040] In the above embodiment, specifically, a plurality of heat dissipation holes are opened at the rear of the cooling box 181, and correspond to the heat dissipation fan 185 at the front end. A plurality of heat dissipation fans 185 are provided to cool the heated aluminum tubes with air, thereby assisting in forming and fixing.
[0041] In the above embodiment, specifically, the first electric slide 5 is electrically connected to PLC2, the second electric slide 142 is electrically connected to PLC2, the servo motor 146 is electrically connected to PLC2, the third electric slide 1482 is electrically connected to PLC2, the fourth electric slide 1483 is electrically connected to PLC2, the pushing electric slide 1486 is electrically connected to PLC2, the fifth electric slide 152 is electrically connected to PLC2, the first electric heating tube 154 is electrically connected to PLC2, the second electric heating tube 155 is electrically connected to PLC2, the infrared ranging sensor 172 is electrically connected to PLC2, the cooling fan 185 is electrically connected to PLC2, and the pushing hydraulic cylinder 7 and the pulling hydraulic cylinder 8 are both connected to the hydraulic station by pipeline for control.
[0042] In the above embodiment, specifically, the working principle is as follows: when the aluminum tube is stretched and expanded, the heated aluminum tube is installed on the outer wall of the core rod 6, and after installation, the second electric slide 142 is driven to drive the lifting vertical plate 143 to rise and drive the inner mold 13 on the inner side of the U-shaped frame 1481 to correspond to the core rod 6, and then the servo motor 146 is driven to cooperate with the gear box 145, the first bevel gear 147, the second bevel gear 1410 and the connecting shaft column 149 to drive the U-shaped frame 1481 to rotate, so that the clamped inner mold 13 also rotates accordingly. During the rotating installation process, the U-shaped The push electric slide 1486 inside the frame 1481 pushes the inner mold 13 to move and realize the installation work. After installation, the third electric slide 1482 and the fourth electric slide 1483 are driven to cooperate with the first clamping sleeve 1484 and the second clamping sleeve 1485 to move and separate from the inner mold 13, and finally the second electric slide 142 is driven again to reset and hide. After installation, the push hydraulic cylinder 7 is driven to push the push tube plate 20 to move on the outer wall of the core rod 6, so that the aluminum tube is extruded so that the position of the end is expanded by the inner mold 13, and the push hydraulic cylinder 7 is driven after the end is expanded. At the same time, the first electric slide 5 is driven to make the core rod 6 drive the aluminum tube to pass between the upper wrapping seat 153 and the lower wrapping seat 151 and pass through the sizing outer mold 16 to be inserted into the cooling box 181. After the inner mold 13 reaches the sizing outer mold 16, it stops moving. After stopping, the drawing hydraulic cylinder 8 is driven to drive the driving seat 9, the driving platform 10 and the drawing fixed seat 11 to move to the right so as to be sleeved on the end of the aluminum tube inside the corresponding hole 182. After sleeved, the tooling fixture 19 is used to clamp and connect the aluminum tube. After connection, the drawing hydraulic cylinder 8 is driven again to pull the aluminum tube. In this way, the aluminum tube is wrapped by the first electric heating tube 15 4 and the second electric heating tube 155 are heated and then expanded and sized by the inner mold 13 and the sizing outer mold 16. After sizing, they are blown by the cooling fan 185 for heat dissipation when passing through the cold box 181. During the expansion process, the drawing and fixing seat 11 drives the positioning block 171 and the wrapping sleeve 173 to move. In this way, the infrared ranging sensor 172 is driven by the positioning block 171 to move and cooperates with the positioning detection seat 174 to control the drawing length. Then, the work is stopped and the aluminum tube is heated. Then, the drawing and expansion are performed again according to the heating range. This is repeated one to four times to complete the expansion of the aluminum tube.
[0043] Utilizing the technical solution described in the present invention, or those skilled in the art designing a similar technical solution inspired by the technical solution of the present invention to achieve the above-mentioned technical effects, all fall within the protection scope of the present invention.
Claims
1. An aluminum tube stretching and expanding machine, comprising a hollow box seat (1), the left side of the front end of the hollow box seat (1) is bolted to a PLC (2); the right side of the upper surface of the hollow box seat (1) is bolted to a positioning support plate (3), and a core rod (6) is inserted and connected to the middle part of the positioning support plate (3); the right side of the outer wall of the core rod (6) is bolted to a push seat (4), and the left end of the core rod (6) is threadedly connected to an inner mold (13); the front and rear sides of the right side of the hollow box seat (1) are The first electric slide (5) is bolted to the first electric slide (5), and the sliding part of the first electric slide (5) is bolted to the push seat (4); the front and rear sides of the right surface of the positioning support plate (3) are bolted to the push hydraulic cylinder (7); the output shaft of the push hydraulic cylinder (7) is bolted to the push tube plate (20), and is connected to the core rod (6) through the middle part; an insertion long hole (12) is opened on the upper left side of the hollow box seat (1); the front and rear sides of the hollow box seat (1) are bolted to the pulling hydraulic cylinder (8), The output shaft is bolted to a driving seat (9); the driving seat (9) is inserted into the hollow box seat (1) through the interlaced long hole (12); the upper end of the driving seat (9) is bolted to a driving platform (10); the upper end of the driving platform (10) is bolted to a drawing seat (11); the inside of the drawing seat (11) is bolted to a tooling fixture (19); a mold disassembly and assembly lifting seat structure (14) is installed in the middle part of the hollow box seat (1); the left side of the upper surface of the hollow box seat (1) is bolted to a heating positioning The clamping seat structure (15) is arranged on the left side of the mold disassembly and assembly lifting seat structure (14); the left bolt on the upper surface of the hollow box seat (1) supports a sizing outer mold (16), which is arranged on the left side of the heating positioning clamping seat structure (15); the drawing seat (11) and the sizing outer mold (16) support a length detection box structure (17); the left bolt on the upper surface of the hollow box seat (1) is connected to a cooling insertion box structure (18), which is arranged on the left side of the sizing outer mold (16), characterized in that: The mold disassembly and assembly lifting platform structure (14) includes a positioning seat plate (141), and the front and rear sides of the upper surface of the positioning seat plate (141) are bolted to the second electric slide (142), and the sliding member of the second electric slide (142) is bolted to the lifting vertical plate (143); the top bolt of the lifting vertical plate (143) supports a shielding cover plate (144); the lower side of the left surface of the lifting vertical plate (143) is bolted to the gear box (145); the middle part of the lifting vertical plate (143) is inlaid with a connecting shaft column (149) through a bearing; the right end of the connecting shaft column (149) is connected to the clamping and wrapping seat structure (148); the lower end of the gear box (145) is bolted to the servo motor (146); the upper end of the gear box (145) is connected to the first A bevel gear (147); a second bevel gear (1410) is embedded on the left side of the outer wall of the connecting shaft column (149); the clamping and wrapping seat structure (148) includes a U-shaped frame (1481), and the front and rear sides of the U-shaped frame (1481) are bolted to a pushing electric slide (1486); the front and rear sides of the U-shaped frame (1481) are provided with a fourth electric slide (1483) and a third electric slide (1482), and are bolted to the sliding part of the pushing electric slide (1486); the first clamping sleeve (1484) is bolted to the sliding part on the surface of the third electric slide (1482); the second clamping sleeve (1485) is bolted to the sliding part on the surface of the fourth electric slide (1483).
2. The aluminum tube stretching and expanding machine according to claim 1, characterized in that: The heating positioning clamping seat structure (15) includes a lower wrapping seat (151) and an upper wrapping seat (153), and the front side bolts of the upper end of the lower wrapping seat (151) support the fifth electric slide (152); and the sliding part on the rear side of the fifth electric slide (152) is bolted to the upper wrapping seat (153); the upper wrapping seat (153) is embedded with a first electric heating tube (154), and an upper through hole (157) is opened on the lower side; the lower wrapping seat (151) is embedded with a second electric heating tube (155), and a lower through hole (156) is opened on the upper side.
3. The aluminum tube stretching and expanding machine according to claim 1, characterized in that: The length detection box structure (17) comprises a positioning block (171), wherein an infrared distance measuring sensor (172) is bolted to the middle portion of the positioning block (171); a wrapping sleeve (173) is bolted to the outer side of the right surface of the positioning block (171); a detection seat (174) is inserted into the outer side of the wrapping sleeve (173); and a limiting plate (175) is bolted to the end portion of the right side of the wrapping sleeve (173).
4. The aluminum tube stretching and expanding machine according to claim 1, characterized in that: The cooling insertion box structure (18) comprises a cooling box (181), and corresponding holes (182) are provided on both sides of the middle part of the cooling box (181); a ball (183) is movably embedded in the lower side of the cooling box (181); a dustproof net (184) is embedded in the front side of the cooling box (181); and a cooling fan (185) is bolted to the front end of the cooling box (181).
5. The aluminum tube stretching and expanding machine according to claim 1, characterized in that: The positioning seat plate (141) is bolted to the middle transverse part of the hollow box seat (1), and the upper shielding cover plate (144) is inserted into the upper part of the hollow box seat (1). A through hole is provided in the middle part of the connecting shaft column (149), which is connected to the cavity provided in the U-shaped frame seat (1481), and cooperates with the connecting shaft column (149) to connect the rotating joint to carry out the electrical connection of the third electric slide (1482), the fourth electric slide (1483) and the pushing electric slide (1486).
6. The aluminum tube stretching and expanding machine according to claim 1, characterized in that: The inner sides of the first clamping sleeve (1484) and the second clamping sleeve (1485) are arranged in an arc shape and are movably supported on the inner side of the U-shaped frame (1481); the left end of the U-shaped frame (1481) is connected to the right end of the connecting shaft column (149), and the third electric slide (1482) and the fourth electric slide (1483) are movably connected by pushing the electric slide (1486).
7. The aluminum tube stretching and expanding machine according to claim 2, characterized in that: The lower wrapping seat (151) is bolted to the upper surface of the hollow box seat (1) and is arranged on the left side of the shielding cover (144). The lower wrapping seat (151) is movably connected to the upper wrapping seat (153) through the fifth electric slide (152). The first electric heating tube (154) and the second electric heating tube (155) are both provided in plurality and are all surrounded by the outer sides of the lower through hole (156) and the upper through hole (157).
8. The aluminum tube stretching and expanding machine according to claim 3, characterized in that: The positioning block (171) is bolted to the surface of the drawing base (11), and the corresponding detection base (174) is bolted to the upper end of the sizing outer mold (16). The wrapping sleeve (173) is configured to be an inverted U-shape and is compatible with the detection base (174). The wrapping sleeve (173) is a PVC transparent sleeve.
9. The aluminum tube stretching and expanding machine according to claim 4, characterized in that: The cooling box (181) is bolted to the surface of the hollow box seat (1) and is arranged between the sizing outer mold (16) and the drawing seat (11). The rear of the cooling box (181) is provided with a plurality of heat dissipation holes corresponding to the heat dissipation fan (185) at the front end. The heat dissipation fan (185) is provided in plurality.