Shaft core assembling device for base sleeve

Abstract

The utility model discloses an assembling device which is reasonable in design and can quickly and accurately assemble a shaft core into a base sleeve. The device comprises a workbench, a heating device and a heating ring connected with the heating device are arranged on the workbench, a lifting supporting frame is further arranged on the workbench, a carrying table is arranged below the lifting supporting frame, a carrier matched with a base sleeve is arranged on the carrying table, and the carrier is located under the heating ring. A jacking mechanism located under the carrier is further arranged on the workbench, a temperature detector is further arranged on the workbench, a transverse moving mechanism and a transverse moving carrying plate connected with the transverse moving mechanism are arranged at the upper end of the lifting supporting frame, a carrying groove matched with the shaft core is formed in one end of the transverse moving carrying plate, and a centering guide pressing device is arranged at the lower end of the lifting supporting frame. And a conducting hole is formed in the middle of the middle guide pressing device, and when the carrying groove is driven by the transverse moving mechanism to move to the tail end of the stroke, the carrying groove is communicated with the conducting hole. The laser motor printer is applied to the technical field of laser motor printers.

Description

Technical Field

[0001] The utility model relates to an assembly device, in particular to an axis core assembly device for a base sleeve. Background Art

[0002] Laser printers are now widely used in people's daily work, and the laser motor in the laser printer needs to assemble the shaft core and the base sleeve, such as Figure 1 The figure shows the base sleeve with the shaft core assembled. The traditional method is to assemble it through cold pressing. The shaft core 1a is clamped by a press-in cylinder and the shaft core 1a is pressed into the base sleeve 2a. Although this operation can assemble the shaft core 1a into the base sleeve 2a, it is easy to cause the verticality of the shaft core 1a to deviate. For laser motors with a speed of more than 50,000 revolutions, this deviation will cause shaking and jumping when rotating at high speed, affecting the use effect.

[0003] At present, thermal assembly is also adopted. For example, the existing patent number is "202211651822.7", and the patent name is "A nanocrystalline crystallizer copper sleeve rapid thermal assembly device and thermal assembly method", which records "The present invention provides a nanocrystalline crystallizer copper sleeve rapid thermal assembly device and thermal assembly method, the thermal assembly device includes a lifting cantilever, a two-dimensional translation platform, a support frame and an amorphous heating belt, wherein the lifting cantilever is used to hang the rotating shaft, the support frame is arranged on the two-dimensional translation platform, the two-dimensional translation platform can rotate and translate, the copper sleeve is placed on the support frame, the amorphous heating belt is wrapped around the outer wall of the copper sleeve, the amorphous heating belt can heat the copper sleeve, thereby causing the copper sleeve to expand, and the copper sleeve can be used to heat the copper sleeve. The copper sleeve can be installed on the rotating shaft by hoisting one end of the rotating shaft into the copper sleeve with the lifting cantilever. The thermal installation device heats the copper sleeve by means of an amorphous heating belt, a heating cover and a heating plate. When the expansion of the copper sleeve meets the thermal installation conditions, the rotating shaft is dropped into the copper sleeve to achieve rapid thermal installation of the nanocrystalline crystallizer copper sleeve. The present invention has a simple structure, short thermal installation time and high quality. "However, the patent has high requirements on the precision of the lifting cantilever and the two-dimensional translation platform. If there is a slight displacement and offset, the hoisted rotating shaft will not be able to fall smoothly into the copper sleeve. Therefore, if a shaft core thermal assembly device for the base sleeve can be developed, and it can effectively ensure that the shaft core can fall smoothly into the base sleeve, the existing problem can be well solved. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an assembly device which has a reasonable design and can quickly and accurately install the shaft core into the base sleeve.

[0005] The technical solution adopted by the utility model is as follows: the utility model comprises a workbench, on which a heating device and a heating coil connected to the heating device are arranged, on which a lifting support frame is also arranged, below which a carrier is arranged, on which a carrier adapted to a base sleeve is arranged, the carrier is located directly below the heating coil, on which a lifting mechanism located directly below the carrier is arranged, the lifting mechanism is used to lift the carrier to contact the heating coil, and on which a temperature detector is arranged, the temperature detector is used to detect the surface of the carrier lifted to the heating coil. The upper end of the lifting support frame is provided with a transverse movement mechanism and a transverse movement carrier plate connected with the transverse movement mechanism, one end of the transverse movement carrier plate is provided with a loading groove adapted to the shaft core, and the lower end of the lifting support frame is provided with a centering guide clamper, and the centering guide clamper is used to drive the lifting support frame to descend, center and align the base sleeve that is jacked to the heating ring and clamp it in the carrier, and the middle part of the centering guide clamper is provided with a through hole, when the loading groove moves to the end of the stroke driven by the transverse movement mechanism, the loading groove is connected with the through hole, and the shaft core falls into the base sleeve through the through hole under the action of gravity.

[0006] Furthermore, an MCU controller is also provided on the workbench, and the heating device, the lifting support frame, the lifting mechanism, the temperature detector, and the transverse movement mechanism are all electrically connected to the MCU controller.

[0007] Furthermore, the lifting support frame includes a first support plate and a second support plate, the upper parts of the first support plate and the second support plate are both provided with lifting guide rails, the lower parts of the first support plate and the second support plate are both provided with lifting cylinders and a lifting carrier plate connected to the output ends of the lifting cylinders, the lifting carrier plate is adapted to be installed on the lifting guide rails, and a lifting platform plate is provided between the two lifting carrier plates.

[0008] Furthermore, the transverse movement mechanism is arranged on the lifting platform, and the transverse movement mechanism includes a transverse movement bottom rail and the transverse movement carrier plate adapted to the transverse movement bottom rail. The transverse movement bottom rail is arranged at one end of the lifting platform, and the other end of the lifting platform is provided with a transverse movement driving cylinder connected to the transverse movement carrier plate, and the centering guide clamp passes through the other end of the transverse movement bottom rail; both ends of the transverse movement bottom rail are provided with in-place buffers.

[0009] Furthermore, the base sleeve includes a circular column, a first cylinder, a second cylinder and a third cylinder which are arranged from top to bottom and formed integrally, the circular column, the first cylinder, the second cylinder and the third cylinder are coaxially arranged, and a mounting through hole adapted to the shaft core is provided in the middle, the diameter of the first cylinder is larger than the diameter of the second cylinder and also larger than the diameter of the circular column, the diameter of the second cylinder is larger than the diameter of the third cylinder, the carrier includes a carrier rod sleeve, a lifting rod, a carrier seat, and a shaft sleeve carrier column, the carrier rod sleeve is fixed to the lower end of the carrier, the lifting rod The lower end of the sleeve is sleeved and passed through the carrier rod sleeve, the upper end of the lifting rod passes through the carrier platform and is connected to the carrier seat, the sleeve carrier column is installed at the upper end of the carrier seat, the sleeve carrier column is provided with a sleeve hole adapted to the second cylinder of the base sleeve, the diameter of the sleeve carrier column is larger than the diameter of the first cylinder of the base sleeve, the lifting mechanism includes a lifting cylinder and a lifting column connected to the lifting cylinder, the lifting column is located directly below the lifting rod, and the lifting column is used to lift the sleeve carrier column to contact the heating ring.

[0010] Furthermore, the centering guide clamp includes a fixed block, a clamping rod and a clamping sleeve, wherein a first inner hole and a second inner hole are provided in the clamping sleeve, the aperture of the first inner hole is smaller than the aperture of the second inner hole, the aperture of the second inner hole is larger than the diameter of the first cylinder of the base sleeve, the outer diameter of the clamping sleeve is smaller than the diameter of the shaft sleeve supporting column, the lower end of the clamping rod is provided with a clamping head, the diameter of the clamping rod is adapted to the aperture of the first inner hole, the diameter of the clamping head is adapted to the aperture of the second inner hole, the clamping head is provided with a guide hole, and the guide hole is a trumpet mouth with a gradually narrowing opening, the fixed block is installed at the lower end of the lifting platform plate, the upper end of the clamping rod is fixed to the other end of the transverse bottom rail, the lower end of the clamping rod passes through the lifting platform plate, the fixed block and the first inner hole in turn, a spring sleeved on the clamping rod is provided between the upper end of the clamping sleeve and the lifting platform plate, and the conducting hole is arranged at the middle part of the clamping rod.

[0011] Furthermore, the inner diameter of the heating ring is larger than the diameter of the first cylinder of the base sleeve and smaller than the diameter of the sleeve carrier column. The temperature detector is a temperature detection probe, and the temperature detection probe is aligned with the temperature of the upper wall surface of the sleeve carrier column after it is raised.

[0012] Further, a U-shaped plate is provided at the other end of the transverse transfer carrier plate, a U-shaped bracket is provided at the other end of the lifting table plate, the U-shaped bracket is provided with a positioning and pressing air cylinder and a positioning pressing rod connected to the positioning and pressing air cylinder, the U-shaped plate is provided with a pressing rod guiding column adapted to the positioning pressing rod, the positioning pressing rod is adapted to the guiding through hole, and the positioning pressing rod is used to further press down the shaft core that has fallen into the base sleeve so that the bottom end of the shaft core is placed at the bottom of the shaft sleeve hole, thereby ensuring the height of the shaft core assembled in the base sleeve.

[0013] Further, a heat dissipation ceramic column sleeve sleeved on the shaft sleeve carrier column is provided at the upper end of the carrier seat, and an air cooler is provided on the side of the carrier table, and the air outlet of the air cooler is aligned with the base sleeve in the carrier after descending.

[0014] The beneficial effects of the present utility model are as follows: The base sleeve is placed in the carrier, and then the base sleeve in the carrier is lifted by the lifting mechanism to contact the heating coil for heating. At the same time, the temperature detector detects the temperature of the surface of the carrier lifted to the heating coil. When the temperature reaches the set value, that is, the installation through hole of the base sleeve expands to be able to fit the shaft core; then the lifting mechanism drives the centering guiding and pressing device to guide and press the base sleeve in the carrier. Furthermore, only by driving the shaft core in the carrier groove to move horizontally through the transverse movement mechanism, the shaft core can smoothly fall into the base sleeve through the guiding through hole. The whole design has a reasonable structure and a high degree of automation, and based on the structural design of the present utility model, the shaft core can be quickly and accurately assembled into the base sleeve. Description of the Drawings

[0015] Figure 1 is a schematic installation structure diagram of the shaft core and the base sleeve;

[0016] Figure 2 is a schematic structural diagram of the present utility model;

[0017] Figure 3 is a front view of the present utility model;

[0018] Figure 4 is a schematic structural diagram of the lifting support frame;

[0019] Figure 5 is a schematic diagram of the state when the carrier rises and the centering guiding and pressing device presses down;

[0020] Figure 6 is Figure 5 the sectional view taken along A-A in

[0021] Figure 7 is Figure 6 the enlarged schematic diagram of part B in

[0022] Figure 8 is a schematic structural diagram of the centering guiding and pressing device. Detailed Description of the Invention

[0023] like Figures 1 to 8 As shown, in this embodiment, the utility model includes a workbench 1, on which a heating device 2 and a heating coil 3 connected to the heating device 2 are arranged, and a lifting support frame 4 is also arranged on the workbench 1, and a carrier 5 is arranged below the lifting support frame 4, and a carrier 6 adapted to the base sleeve 2a is arranged on the carrier 5, and the carrier 6 is located directly below the heating coil 3, and a lifting mechanism 7 located directly below the carrier 6 is also arranged on the workbench 1, and the lifting mechanism 7 is used to lift the carrier 6 to contact the heating coil 3, and a temperature detector 8 is also arranged on the workbench 1, and the temperature detector 8 is used to detect the temperature of the surface of the carrier 6 lifted to the heating coil 3, and the lifting support frame 4 is provided. The upper end of the frame 4 is provided with a transverse mechanism 9 and a transverse carrier 10 connected to the transverse mechanism 9, one end of the transverse carrier 10 is provided with a loading groove 11 adapted to the shaft core 1a, and the lower end of the lifting support frame 4 is provided with a centering guide clamp 12, the centering guide clamp 12 is used to drive the lifting support frame 4 to descend, center and align the base sleeve 2a lifted to the heating ring 3 and clamp it in the carrier 6, the middle part of the centering guide clamp 12 is provided with a through hole 121, when the loading groove 11 moves to the end of the stroke driven by the transverse mechanism 9, the loading groove 11 is connected with the through hole 121, and the shaft core 1a falls into the base sleeve 2a through the through hole 121 under the action of gravity.

[0024] In this embodiment, an MCU controller is also provided on the workbench 1, and the heating device 2, the lifting support frame 4, the lifting mechanism 7, the temperature detector 8, and the transverse movement mechanism 9 are all electrically connected to the MCU controller.

[0025] In this embodiment, the lifting support frame 4 includes a first support plate 41 and a second support plate 42, and the upper parts of the first support plate 41 and the second support plate 42 are both provided with lifting guide rails 43, and the lower parts of the first support plate 41 and the second support plate 42 are both provided with lifting cylinders 44 and lifting carrier plates 45 connected to the output ends of the lifting cylinders 44, and the lifting carrier plates 45 are adapted to be installed on the lifting guide rails 43, and a lifting platform plate 46 is provided between the two lifting carrier plates 45. This design indirectly drives the lifting platform plate 46 to descend by controlling the lifting and lowering of the two lifting cylinders 44 at the same time, so that the centering guide clamp 12 under the lifting platform plate 46 is centered and presses the base sleeve 2a in the carrier 6.

[0026] In this embodiment, the transverse movement mechanism 9 is arranged on the lifting platform 46, and the transverse movement mechanism 9 includes a transverse movement bottom rail 91 and the transverse movement carrier 10 matched with the transverse movement bottom rail 91. The transverse movement bottom rail 91 is arranged at one end of the lifting platform 46, and the other end of the lifting platform 46 is provided with a transverse movement driving cylinder 92 connected with the transverse movement carrier 10, and the centering guide clamp 12 passes through the other end of the transverse movement bottom rail 91; both ends of the transverse movement bottom rail 91 are provided with in-position buffers 93; this design is used when the base sleeve 2a is heated to the set temperature, and the transverse movement driving cylinder 92 drives the transverse movement driving cylinder 92 to move to the end of the transverse movement bottom rail 91, so that the loading slot 11 is connected with the guide hole 121, and then the shaft core 1a in the loading slot 11 falls under the action of gravity.

[0027] In this embodiment, the base sleeve 2a includes a circular column 2a1, a first cylinder 2a2, a second cylinder 2a3 and a third cylinder 2a4 which are arranged from top to bottom and formed in one piece. The circular column 2a1, the first cylinder 2a2, the second cylinder 2a3 and the third cylinder 2a4 are coaxially arranged and a mounting through hole adapted to the shaft core 1a is provided in the middle. The diameter of the first cylinder 2a2 is larger than the diameter of the second cylinder 2a3 and also larger than the diameter of the circular column 2a1. The diameter of the second cylinder 2a3 is larger than the diameter of the third cylinder 2a4. The carrier 6 includes a carrier rod sleeve 61, a lifting rod 62, a carrier seat 63 and a sleeve carrier column 64. The carrier rod sleeve 61 is fixed to the lower end of the carrier platform 5. The lower end of the lifting rod 62 is sleeved and passed through the carrier rod sleeve 61. The upper end of the lifting rod 62 passes through the carrier platform 5 and is connected to the carrier platform 5. The tool seat 63 is connected, the sleeve supporting column 64 is installed at the upper end of the carrier seat 63, the sleeve supporting column 64 is provided with a sleeve hole 641 adapted to the second cylinder 2a3 of the base sleeve 2a, the diameter of the sleeve supporting column 64 is larger than the diameter of the first cylinder 2a2 of the base sleeve 2a, the lifting mechanism 7 includes a lifting cylinder 71 and a lifting column 72 connected to the lifting cylinder 71, the lifting column 72 is located directly below the lifting rod 62, the lifting column 72 is used to lift the sleeve supporting column 64 to contact the heating coil 3; this design lifts the sleeve supporting column 64 in the carrier 6 to the heating coil 3 through the lifting mechanism 7, and then heats the sleeve supporting column 64 and the base sleeve 2a in the sleeve supporting column 64 at the same time, the sleeve supporting column 64 is made of a material with good thermal conductivity, and can also transfer the heated temperature to the base sleeve 2a.

[0028] In this embodiment, the centering guide clamp 12 includes a fixed block 120, a clamping rod 122 and a clamping sleeve 123, wherein the clamping sleeve 123 is provided with a first inner hole and a second inner hole 1231, wherein the aperture of the first inner hole is smaller than the aperture of the second inner hole 1231, and the aperture of the second inner hole 1231 is larger than the diameter of the first cylinder 2a2 of the base sleeve 2a, and the outer diameter of the clamping sleeve 123 is smaller than the diameter of the sleeve support column 64, and the lower end of the clamping rod 122 is provided with a clamping head 124, wherein the diameter of the clamping rod 122 is adapted to the aperture of the first inner hole, and the diameter of the clamping head 124 is adapted to the aperture of the second inner hole 1231, and the clamping head 124 is provided with The guide hole 1241 is a trumpet-shaped mouth with a gradually narrowing opening. The fixed block 120 is installed on the lower end of the lifting platform 46. The upper end of the clamping rod 122 is fixed to the other end of the transverse bottom rail 91. The lower end of the clamping rod 122 passes through the lifting platform 46, the fixed block 120 and the first inner hole in sequence. A spring sleeved on the clamping rod 122 is arranged between the upper end of the clamping sleeve 123 and the lifting platform 46. The conducting hole 121 is arranged in the middle of the clamping rod 122. This design can make the centering guide clamp 12 smoothly guide and clamp the base sleeve 2a, and the spring has a descending buffer function to avoid hard collisions caused by precision problems.

[0029] In this embodiment, the inner diameter of the heating coil 3 is larger than the diameter of the first cylinder 2a2 of the base sleeve 2a and smaller than the diameter of the sleeve carrier column 64. The temperature detector is a temperature detection probe, which is aligned with the temperature of the upper wall surface of the sleeve carrier column 64 after it is raised.

[0030] In this embodiment, a shaped plate 13 is further provided at the other end of the transverse carrier plate 10, and a shaped bracket 14 is provided at the other end of the lifting platform plate 46. The shaped bracket 14 is provided with a positioning downward pressure cylinder 15 and a positioning pressure rod 16 connected to the positioning downward pressure cylinder 15. The shaped plate 13 is provided with a pressure rod guide column 17 adapted to the positioning pressure rod 16. The positioning pressure rod 16 is adapted to the through hole 121. The positioning pressure rod 16 is used to further press down the shaft core 1a that falls to the base sleeve 2a, so that the bottom end of the shaft core 1a is placed at the bottom of the shaft sleeve hole 641, thereby ensuring that the shaft core 1a is assembled at the height of the base sleeve 2a.

[0031] In this embodiment, the upper end of the carrier seat 63 is also provided with a heat dissipating ceramic column sleeve 18 which is sleeved on the shaft sleeve carrier column 64. An air cooler is also provided on the side of the carrier 5. The air outlet of the air cooler is aimed at the base sleeve 2a in the carrier 6 after it is lowered. This design is used to quickly cool the assembled base sleeve 2a, so that the base sleeve 2a shrinks and hugs the shaft core 1a.

[0032] In this embodiment, the base sleeve is loaded into the carrier manually or by a loading robot, and the lifting mechanism lifts the carrier equipped with the base sleeve to contact the heating ring, thereby heating the base sleeve. When the temperature detection probe detects that the measured temperature reaches the set value, the installation through hole of the base sleeve expands larger than the diameter of the shaft core; the lifting support frame drives the entire lifting platform to descend, so that the clamping sleeve head contacts the outer edge of the sleeve carrier column, and then continues to descend, so that the bell mouth in the clamping head contacts the circular column at the upper end of the base sleeve, and accurately centers and guides the base sleeve to the sleeve carrier column. The pressing head continues to descend and presses the first cylinder of the base sleeve into the sleeve carrier column; the transverse movement mechanism drives the shaft core in the carrier groove to move to the end of the stroke, so that the shaft core passes through the through shaft core hole and is assembled into the base sleeve under the action of gravity; the downward pressure cylinder drives the positioning pressure rod to further press the shaft core downward to ensure that the shaft core is assembled and contacts the bottom of the sleeve hole, thereby ensuring the height of the shaft core assembled in the base sleeve; the lifting mechanism, the lifting support frame, the downward pressure cylinder, and the transverse movement mechanism are all reset, and then the air cooler cools the base sleeve, so that the base sleeve shrinks and holds the shaft core tightly.

[0033] The utility model is applied to the technical field of laser motor printers.

[0034] Although the embodiments of the present invention are described with practical solutions, they do not constitute limitations on the meaning of the present invention. For those skilled in the art, it is obvious to modify the implementation scheme and combine it with other solutions based on this description.

Claims

1. A shaft core assembly device for a base sleeve, comprising a workbench (1), on which a heating device (2) and a heating ring (3) connected to the heating device (2) are arranged, characterized in that: The workbench (1) is also provided with a lifting support frame (4), a carrier (5) is provided below the lifting support frame (4), a carrier (6) adapted to the base sleeve (2a) is provided on the carrier (5), the carrier (6) is located directly below the heating coil (3), the workbench (1) is also provided with a lifting mechanism (7) located directly below the carrier (6), the lifting mechanism (7) is used to lift the carrier (6) to contact the heating coil (3), the workbench (1) is also provided with a temperature detector (8), the temperature detector (8) is used to detect the temperature of the surface of the carrier (6) lifted to the heating coil (3), the upper end of the lifting support frame (4) is provided with a transverse movement mechanism (9) and a device connected to the transverse movement mechanism (9). A transverse carrier (10) is connected to the lateral movement carrier (10), one end of which is provided with a loading groove (11) adapted to the shaft core (1a), and a centering guide clamp (12) is provided at the lower end of the lifting support frame (4), and the centering guide clamp (12) is used to be driven down by the lifting support frame (4) to center and align the base sleeve (2a) lifted to the heating ring (3) and clamp it in the carrier (6), and a conducting hole (121) is provided in the middle of the centering guide clamp (12), and when the loading groove (11) moves to the end of the stroke driven by the transverse movement mechanism (9), the loading groove (11) is connected with the conducting hole (121), and the shaft core (1a) falls into the base sleeve (2a) through the conducting hole (121) under the action of gravity.

2. The shaft core assembly device for a base sleeve according to claim 1, characterized in that: The workbench (1) is also provided with an MCU controller, and the heating device (2), the lifting support frame (4), the lifting mechanism (7), the temperature detector (8), and the transverse movement mechanism (9) are all electrically connected to the MCU controller.

3. The shaft core assembly device for a base sleeve according to claim 1, characterized in that: The lifting support frame (4) comprises a first support plate (41) and a second support plate (42); the upper parts of the first support plate (41) and the second support plate (42) are both provided with lifting guide rails (43); the lower parts of the first support plate (41) and the second support plate (42) are both provided with lifting cylinders (44) and lifting carrier plates (45) connected to output ends of the lifting cylinders (44); the lifting carrier plates (45) are adapted to be mounted on the lifting guide rails (43); and a lifting platform plate (46) is provided between the two lifting carrier plates (45).

4. The shaft core assembly device for a base sleeve according to claim 3, characterized in that: The transverse movement mechanism (9) is arranged on the lifting platform (46), and the transverse movement mechanism (9) includes a transverse movement bottom rail (91) and a transverse movement carrier plate (10) adapted to the transverse movement bottom rail (91). The transverse movement bottom rail (91) is arranged at one end of the lifting platform (46), and the other end of the lifting platform (46) is provided with a transverse movement driving cylinder (92) connected to the transverse movement carrier plate (10), and the centering guide clamp (12) passes through the other end of the transverse movement bottom rail (91); and both ends of the transverse movement bottom rail (91) are provided with in-position buffers (93).

5. The shaft core assembly device for a base sleeve according to claim 4, characterized in that: The base sleeve (2a) comprises a circular column (2a1), a first cylinder (2a2), a second cylinder (2a3) and a third cylinder (2a4) which are arranged from top to bottom and formed in one piece. The circular column (2a1), the first cylinder (2a2), the second cylinder (2a3) and the third cylinder (2a4) are coaxially arranged and a mounting through hole adapted to the shaft core (1a) is provided in the middle. The diameter of the first cylinder (2a2) is larger than the diameter of the second cylinder (2a3) and also larger than the diameter of the circular column (2a1). The diameter of the second cylinder (2a3) is larger than the diameter of the third cylinder (2a4). The carrier (6) comprises a carrier rod sleeve (61), a lifting rod (62), a carrier seat (63) and a shaft sleeve carrier column (64). The carrier rod sleeve (61) is fixed to the lower end of the carrier platform (5). The lifting rod (62) is fixed to the carrier seat (63) and a shaft sleeve carrier column (64). The lower end of the rod (62) is sleeved and passed through the rod carrier sleeve (61), the upper end of the lifting rod (62) passes through the carrier platform (5) and is connected to the carrier seat (63), the sleeve carrier column (64) is installed on the upper end of the carrier seat (63), the sleeve carrier column (64) is provided with a sleeve hole (641) adapted to the second cylinder (2a3) of the base sleeve (2a), the diameter of the sleeve carrier column (64) is larger than the diameter of the first cylinder (2a2) of the base sleeve (2a), the lifting mechanism (7) comprises a lifting cylinder (71) and a lifting column (72) connected to the lifting cylinder (71), the lifting column (72) is located directly below the lifting rod (62), and the lifting column (72) is used to lift the sleeve carrier column (64) to contact the heating coil (3).

6. The shaft core assembly device for a base sleeve according to claim 5, characterized in that: The centering guide clamp (12) comprises a fixed block (120), a clamping rod (122) and a clamping sleeve (123); a first inner hole and a second inner hole (1231) are provided in the clamping sleeve (123); the aperture of the first inner hole is smaller than the aperture of the second inner hole (1231); the aperture of the second inner hole (1231) is larger than the diameter of the first cylinder (2a2) of the base sleeve (2a); the outer diameter of the clamping sleeve (123) is smaller than the diameter of the shaft sleeve support column (64); a clamping head (124) is provided at the lower end of the clamping rod (122); the diameter of the clamping rod (122) matches the aperture of the first inner hole; the diameter of the clamping head (124) matches the aperture of the second inner hole. The apertures of the holes (1231) are adapted to each other, the clamping head (124) is provided with a guide hole (1241), and the guide hole (1241) is a bell mouth with a gradually narrowing opening. The fixing block (120) is installed at the lower end of the lifting platform (46), the upper end of the clamping rod (122) is fixed to the other end of the transverse bottom rail (91), and the lower end of the clamping rod (122) passes through the lifting platform (46), the fixing block (120) and the first inner hole in sequence. A spring (125) sleeved on the clamping rod (122) is provided between the upper end of the clamping sleeve (123) and the lifting platform (46), and the conducting hole (121) is provided in the middle of the clamping rod (122).

7. The shaft core assembly device for a base sleeve according to claim 6, characterized in that: The inner diameter of the heating coil (3) is larger than the diameter of the first cylinder (2a2) of the base sleeve (2a) and smaller than the diameter of the sleeve support column (64); the temperature detector is a temperature detection probe, and the temperature detection probe is aligned with the temperature of the upper wall surface of the sleeve support column (64) after it is raised.

8. The shaft core assembly device for a base sleeve according to claim 4, characterized in that: The other end of the transverse carrier plate (10) is also provided with a shaped plate (13), and the other end of the lifting platform plate (46) is provided with a shaped bracket (14), and the shaped bracket (14) is provided with a positioning downward pressure cylinder (15) and a positioning pressure rod (16) connected to the positioning downward pressure cylinder (15), and the shaped plate (13) is provided with a pressure rod guide column (17) adapted to the positioning pressure rod (16), and the positioning pressure rod (16) is adapted to the guide hole (121), and the positioning pressure rod (16) is used to further press down the shaft core (1a) that falls into the base sleeve (2a), so that the bottom end of the shaft core (1a) is placed at the bottom of the shaft sleeve hole (641), thereby ensuring that the shaft core (1a) is assembled at the height of the base sleeve (2a).

9. The shaft core assembly device for a base sleeve according to claim 5, characterized in that: The upper end of the carrier seat (63) is also provided with a heat dissipation ceramic column sleeve (18) sleeved on the shaft sleeve carrier column (64), and the side of the carrier (5) is also provided with an air cooler, the air outlet of the air cooler is aligned with the base sleeve (2a) inside the carrier (6) after it is lowered.

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