Servo jig elevator

Abstract

The servo jig lifter comprises a lifting mechanism, a conveying line body and a rack, the lifting mechanism comprises two guide shafts, a first ball screw and a first servo motor, the guide shafts and the first ball screw are longitudinally installed in the rack, the upper ends and the lower ends of the guide shafts are installed between the rack, and the guide shafts are rotationally connected with the rack; the upper end and the lower end of the ball screw are installed between the racks, the first ball screw is rotationally connected with the racks, the first servo motor is installed on one side of the rack at the top of the first ball screw, a base of the first servo motor is detachably connected with the bottoms of the racks, and the working end of the first servo motor is rotationally connected with the racks. The first servo motor is connected with the first ball screw, the first servo motor provides power for the first ball screw, the conveying line body is installed on the lifting mechanism, and the conveying line body is detachably connected with the lifting mechanism; the lifting device has the technical effects of being stable in lifting and high in speed.

Description

Technical Field

[0001] This application relates to the technical field of lifting and conveying, and in particular to a servo fixture lifting machine. Background Technology

[0002] Currently, in industries such as electronics and auto parts manufacturing, assembly line operations are generally adopted. The upper assembly line is the production line, and the lower assembly line is used for jig return. There is a lift at each end, which automatically feeds, lifts, and discharges the jigs.

[0003] The existing lifting platform is a cylinder lifting platform, which is greatly affected by the factory's air pressure and solenoid valves. The lifting platform has different speeds under no-load and full-load conditions, and acceleration and deceleration cannot be controlled. It also has a slow speed with vibration during operation, which has a significant impact on precision products or fragile fixtures. Furthermore, the lifting stability is insufficient. When there are multiple specifications of products and fixtures, the lifting platform cannot be adjusted to meet the needs of different users.

[0004] Regarding the aforementioned technologies, the applicant believes that there is a deficiency in the stability of lifting. Utility Model Content

[0005] To address the aforementioned technical problems, this application provides a servo fixture lifting platform.

[0006] This application provides a servo-controlled fixture lifting platform, which adopts the following technical solution:

[0007] A servo fixture lifting platform includes a lifting mechanism, a conveyor line, and a frame. The lifting mechanism includes two guide shafts, a first ball screw, and a first servo motor. The guide shafts and the first ball screw are longitudinally mounted within the frame. The upper and lower ends of the guide shafts are mounted between the frame and rotatably connected to it. The upper and lower ends of the ball screw are mounted between the frame and rotatably connected to it. The first ball screw is mounted on one side of the frame at the top of the first ball screw. The base of the first servo motor is detachably connected to the bottom of the frame. The working end of the first servo motor is rotatably connected to the frame. The first servo motor is connected to the first ball screw and provides power to it. The conveyor line is mounted on the lifting mechanism and detachably connected to it.

[0008] By adopting the above technical solution, the lifting mechanism is installed on the frame and is detachably connected to the frame. The conveyor line is installed on the lifting mechanism and is detachably connected to the lifting mechanism. The lifting mechanism includes two guide shafts, a first ball screw, and a first servo motor. The first servo motor can provide real-time feedback on the motor's speed, position, and torque data, forming a closed-loop control system. The controller dynamically adjusts the motor output according to preset parameters to ensure a smooth and vibration-free lifting process. The ball screw replaces traditional sliding friction with rolling friction, improving transmission efficiency and achieving high-speed and high-precision linear motion. The combination of the double guide shafts and the ball screw provides a stable vertical support structure. The guide shafts limit the lateral displacement of the conveyor line, reducing swaying and making the lifting smooth and fast.

[0009] Preferably, the guide shaft is provided with three slotted photoelectric sensors, which are respectively installed at the upper limit position, the lower limit position, and the origin. A drag chain is provided between the lifting mechanism and the conveyor line. One end of the drag chain is installed on the frame and is detachably connected to the frame. The other end of the drag chain is installed on the conveyor line and is detachably connected to the conveyor line. The drag chain is used to protect the cables of the conveyor line.

[0010] By adopting the above technical solution, slotted photoelectric sensors are installed at the upper and lower limit positions of the guide shaft, which can monitor the running position of the lifting mechanism in real time, prevent equipment collisions caused by overtravel, and ensure that the lifting action starts and stops accurately within the preset range. It is suitable for scenarios that require long-distance movement or multi-station switching. The drag chain wraps the cable of the conveyor line inside, which can effectively avoid the friction or squeezing of the cable caused by the movement of the lifting mechanism.

[0011] Preferably, a first bearing seat is provided at the connection points between the upper and lower ends of the guide shaft and the frame. The first bearing seat is rotatably connected to the guide shaft and detachably connected to the frame. A first screw seat is provided at the connection points between the upper and lower ends of the first ball screw and the frame. The first ball screw is rotatably connected to the first screw seat and detachably connected to the frame.

[0012] Preferably, a transmission mechanism is provided at the working end of the first servo motor and the upper end of the first ball screw. The transmission mechanism includes multiple sets of synchronous pulleys and a synchronous belt mechanism. Corresponding synchronous pulleys are respectively installed at the working end of the first servo motor and the upper end of the first ball screw. The synchronous pulleys of the first servo motor and the synchronous pulleys of the first ball screw are connected by a synchronous belt mechanism. The first servo motor provides power to the first ball screw.

[0013] By adopting the above technical solution, the tooth profile design of the synchronous belt and synchronous pulley ensures zero-slip synchronous transmission, which can accurately transmit the speed and torque of the motor, realize high-precision rotation control of the first ball screw, and avoid the slippage phenomenon of traditional belt drive.

[0014] Preferably, the conveyor line includes a base plate, multiple sets of linear guides, multiple sets of sliders, multiple sets of second ball screws, a hexagonal drive shaft, a stepper motor, and a synchronous belt drive mechanism. The two sets of linear guides are respectively mounted on both sides of the base plate, and the linear guides are detachably connected to the base plate. The sliders are mounted on the linear guides and are slidably connected to the linear guides. The two sets of second ball screws are respectively mounted on the sliders, and the moving parts of the second ball screws are detachably connected to the sliders. Second screw seats are provided at both ends of the second ball screws, and the second ball screws are connected to the second screw... The lever seat is rotatably connected, and the second ball screw is connected to the frame through the second screw seat. The hexagonal drive shaft is mounted on the base plate between two sets of linear guides. Drive shaft seats are provided at both ends of the hexagonal drive shaft, and the hexagonal drive shaft is rotatably connected to the drive shaft seats. The hexagonal drive shaft is connected to the base plate through the drive shaft seats. The stepper motor is connected to the hexagonal drive shaft through a synchronous belt transmission mechanism, and the stepper motor provides power to the hexagonal drive shaft. Two sets of linear bearings are provided at one end of the base plate. The linear bearings are detachably connected to the base plate and are slidably connected to the guide shaft.

[0015] By adopting the above technical solution, the linear guide, slider, and second ball screw are all detachably connected. The hexagonal drive shaft is driven by a stepper motor through a synchronous belt transmission mechanism, which can simultaneously drive the two sets of second ball screws to rotate synchronously, ensuring the synchronicity of the movement of the sliders on both sides. The second ball screw converts the rotary motion into linear motion to ensure precision transmission.

[0016] Preferably, a first platform is provided on the moving parts of the hexagonal drive shaft and the second ball screw. The first platform is fixedly connected to the moving parts of the second ball screw and the hexagonal drive shaft. A rear belt is provided on one side of the first platform and on the hexagonal drive shaft. The rear belt is detachably connected to the first platform and the hexagonal drive shaft. A second platform is provided on the first screw seat and the drive shaft seat at the end away from the stepper motor. The second platform is fixedly connected to the first screw seat and the drive shaft seat. A front belt is provided on one side of the second platform and on the hexagonal drive shaft. The front belt is detachably connected to the second platform and the hexagonal drive shaft.

[0017] By adopting the above technical solution, the first platform and the second platform are installed in layers through a hexagonal drive shaft and a ball screw. The front and rear belt conveyors are respectively mounted on different platforms. The hexagonal drive shaft not only drives the linear motion of the first platform, but also drives the active rollers of the front and rear belt conveyors, realizing the synchronous control of material conveying and platform movement. The speed or direction of the rear and front belt conveyors can be controlled independently, and in conjunction with the lifting motion of the first platform, the material can be transferred at multiple angles.

[0018] Preferably, two sets of reflective photoelectric mechanisms are provided at both ends of the second platform. The reflective photoelectric mechanisms are detachably connected to the second platform. A rotating handwheel is provided on the ball screw on the outer side of the second lead screw seat at one end of the second platform. The rotating handwheel is fixedly connected to the ball screw.

[0019] By adopting the above technical solution, the reflective photoelectric mechanism uses the principle of beam reflection, which can detect the position and movement of objects in real time without contacting materials or equipment parts. It has a fast response speed and the detection accuracy can reach the millimeter level, providing accurate signals for the automated control of the conveyor line and ensuring the accuracy of material conveying. The rotating handwheel is fixedly connected to the ball screw, and the position of the second platform can be finely adjusted by manual rotation.

[0020] Preferably, the bottom of the frame is provided with a foot cup, which is detachably connected to the frame. The front of the frame is provided with an openable door, which is rotatably connected to the frame. The top of the frame is provided with a protective cover, which is detachably connected to the frame. The front door above the protective cover is provided with a touch screen, a button switch, and a tri-color light. The top of the protective cover is provided with an observation window. The touch screen, button switch, tri-color light, and observation window are all fixedly connected to the protective cover.

[0021] By adopting the above technical solution, the foot cups are detachably connected to the frame, and their height can be adjusted by rotation to adapt to different ground flatness, ensuring the stability of the frame and preventing equipment vibration or operational deviation caused by uneven ground. The door can be opened and rotated to connect with the frame, allowing technicians to quickly enter the frame for maintenance. The protective cover can isolate the moving parts inside the frame, and the operation interface is centralized in the front door of the protective cover, allowing operators to make settings directly from the outside of the equipment. The three-color lights display the equipment's operating status in real time, allowing operators to quickly and remotely monitor the equipment's condition.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] The lifting mechanism is mounted on the frame and is detachably connected to the frame. The conveyor line is mounted on the lifting mechanism and is detachably connected to the lifting mechanism. The lifting mechanism includes two guide shafts, a first ball screw, and a first servo motor. The first servo motor can provide real-time feedback on the motor's speed, position, and torque data, forming a closed-loop control system. The controller dynamically adjusts the motor output according to preset parameters to ensure a smooth and vibration-free lifting process. The ball screw uses rolling friction instead of traditional sliding friction to improve transmission efficiency and achieve high-speed and high-precision linear motion. The combination of the double guide shafts and the ball screw provides a stable vertical support structure. The guide shafts limit the lateral displacement of the conveyor line, reducing swaying and making the lifting smooth and fast.

[0024] The first and second platforms are installed in layers via a hexagonal drive shaft and ball screws. The front and rear conveyor belts are mounted on different platforms. The hexagonal drive shaft not only drives the linear motion of the first platform, but also drives the drive rollers of the front and rear conveyor belts, achieving synchronous control of material conveying and platform movement. The speed or direction of the rear and front conveyor belts can be controlled independently, and in conjunction with the lifting motion of the first platform, multi-angle material transfer can be achieved. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure in the embodiment.

[0026] Figure 2 This is a schematic diagram of the lifting mechanism in the embodiment.

[0027] Figure 3 This is a schematic diagram of the conveyor line in the embodiment.

[0028] Explanation of reference numerals in the attached drawings: 1. Lifting mechanism; 11. Guide shaft; 12. First ball screw; 13. First servo motor; 14. Transmission mechanism; 141. Synchronous pulley; 142. Synchronous belt mechanism; 15. Groove photoelectric sensor; 16. Cable chain; 17. First shaft seat; 18. First screw seat; 2. Conveyor line; 21. Base plate; 22. Linear guide rail; 23. Slider; 24. Second ball screw; 25. Hexagonal drive shaft; 26. Stepper motor; 27. Synchronous belt transmission mechanism; 28. Second screw seat; 29. ​​Drive shaft seat; 3. First platform; 31. Rear belt conveyor; 4. Second platform; 41. Front belt conveyor; 5. Reflective photoelectric mechanism; 6. Rotating handwheel; 7. Frame; 71. Foot cup; 72. Openable door; 73. Protective cover; 731. Touch screen; 732. Push button switch; 733. Three-color light; 734. Observation window; 8. Linear bearing. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0030] This application discloses a servo fixture lifting machine. (Refer to...) Figure 1-3The system includes a lifting mechanism 1, a conveyor line 2, and a frame 7. The lifting mechanism 1 includes two guide shafts 11, a first ball screw 12, and a first servo motor 13. The guide shafts 11 and the first ball screw 12 are longitudinally installed inside the frame 7. The upper and lower ends of the guide shafts 11 are installed between the frame 7. First bearing seats 17 are provided at the connection points between the upper and lower ends of the guide shafts 11 and the frame 7. The guide shafts 11 are connected to the upper and lower ends of the frame 7 through the first bearing seats 17. The first bearing seats 17 are rotatably connected to the guide shafts 11 and are bolted to the frame 7. The first ball screw 12 is installed on the frame 7 between the two sets of guide shafts 11. First screw seats 18 are provided at both ends of the first ball screw 12. The first ball screw 12 is connected to the frame 7 through the first screw seats 18. The first servo motor 13... A transmission mechanism 14 is provided at the working end and the upper end of the first ball screw 12. The transmission mechanism 14 includes multiple sets of synchronous pulleys 141 and a synchronous belt mechanism 142. The synchronous pulleys 141 of the first servo motor 13 and the synchronous pulleys 141 of the first ball screw 12 are connected by the synchronous belt mechanism 142. The first servo motor 13 provides power to the first ball screw 12. The rotation of the first servo motor 13 drives the active moving part of the first ball screw 12 to move. Three slotted photoelectric sensors 15 are provided on the guide shaft 11. The three slotted photoelectric sensors 15 are respectively installed at the upper limit position, the lower limit position and the origin. A drag chain 16 is provided between the lifting mechanism 1 and the conveyor line 2. One end of the drag chain 16 is installed on the frame 7 and the other end of the drag chain 16 is installed on the conveyor line 2 to prevent the line from being worn when the mechanism moves.

[0031] The conveyor line 2 includes a base plate 21, multiple sets of linear guides 22, multiple sets of sliders 23, multiple sets of second ball screws 24, a hexagonal drive shaft 25, a stepper motor 26, and a synchronous belt drive mechanism 27. Two sets of linear bearings 8 are installed at one end of the base plate 21, and the linear bearings 8 are connected to the base plate 21. The base plate 21 is slidably connected to the guide shaft 11 in the lifting mechanism 1 via the linear bearings 8. Multiple linear guides 22 are bolted to both ends of the base plate 21. Slider 23 is mounted on the corresponding linear guide 22 and is slidably connected to the linear guide 22. Multiple sets of second ball screws 25... 4. The second ball screw 24 is installed above the corresponding linear guide 22. The moving part of the second ball screw 24 is bolted to the slider 23. The second ball screw 24 is provided with second screw seats 28 at both ends. The second ball screw 24 is fixedly connected to the base plate 21 through the second screw seats 28. A hexagonal drive shaft 25 is installed on the base plate 21 between the two sets of linear guides 22. The hexagonal drive shaft 25 is provided with drive shaft seats 29 at both ends. The hexagonal drive shaft 25 is fixedly connected to the base plate 21 through the drive shaft seats 29. The stepper motor 26 is bolted to the base plate at one end of the hexagonal drive shaft 25. On stepper motor 26, a stepper motor 26 is connected to hexagonal drive shaft 25 via synchronous belt drive mechanism 2714. Stepper motor 26 provides power to hexagonal drive shaft 25. A first platform 3 is provided on the moving parts of hexagonal drive shaft 25 and second ball screw 24. The first platform 3 is fixedly connected to the moving parts of hexagonal drive shaft 25 and second ball screw 24. A rear belt cable 31 is provided on one side of the first platform 3 and on hexagonal drive shaft 25. The rear belt cable 31 is rotatably connected to the first platform 3 and hexagonal drive shaft 25. The first belt cable 31 is located away from the stepper motor 26. A second platform 4 is provided on the lever seat 18 and the drive shaft seat 29. The second platform 4 is fixedly connected to the first lead screw seat 18 and the drive shaft seat 29. A front belt cable 41 is provided on one side of the second platform 4 and on the hexagonal drive shaft 25. The front belt cable 41 is rotatably connected to the second platform 4 and the hexagonal drive shaft 25. The fixture moves by rotating the rear belt cable 31 and the front belt cable 41. At the same time, it cooperates with the lifting mechanism 1 to realize the multi-angle transmission of the fixture. The reflective photoelectric mechanism 5 is installed at both ends of the second platform 4 by bolts to detect the position and movement status of the object in real time.

[0032] The foot cup 71 is connected to the bottom of the frame 7 by bolts and can be adjusted by rotation to adapt to different flat surfaces. The openable door 72 is installed on the front side of the frame 7 and is rotatably connected to the frame 7. The protective cover 73 installed on the top of the frame 7 can isolate the moving parts inside the frame 7. The touch screen 731 and the button switch 732 are centrally installed on the front side of the protective cover 73 and can be directly set on the outside of the equipment. The three-color light 733 is fixedly connected to the top of the protective cover 73, allowing direct observation of the machine's movement status.

[0033] The working principle of a servo jig lifting machine in this application is as follows: A first servo motor 13 is installed on the top of the frame 7, and transmits power to a first ball screw 12 through a synchronous pulley 141 and a synchronous belt mechanism 142 in the transmission mechanism 14. The first ball screw 12 is connected to the frame 7 through a first screw seat. The guide shaft 11 is fixed to the frame 7 through first bearings 17 at both ends, providing vertical guidance for the conveyor line 2, ensuring the stability of the lifting process and avoiding shaking. The linear guide rail 22 and the slider 23 form a horizontal guiding structure. Mounted on base plate 21, linear bearing 8 on base plate 21 is connected to guide shaft 11. Sliding slider 23 slides along guide rail to provide support for the horizontal movement of conveyor line 2. Hexagonal drive shaft 25 is driven by stepper motor 26 through synchronous belt transmission mechanism 27. First platform 3 and second platform 4 are respectively mounted on the moving part of second ball screw 24 and drive shaft seat 29. The rotation of hexagonal drive shaft 25 drives the front belt 41 and rear belt 31 mounted on first platform 3 and second platform 4 to operate, realizing the movement of fixture on conveyor line 2. The horizontal conveyor is connected to the slider 23 via a moving component. When the second ball screw 24 rotates, the slider 23 can move horizontally on the linear guide 22. This, combined with the hexagonal drive shaft 25, adjusts the position or tension of the rear belt 31 to ensure conveying accuracy. Reflective photoelectric mechanisms 5 are installed at both ends of the conveyor to detect when the fixture is fully inserted and removed. When the width of the conveyor needs adjustment, the handwheel 6, fixedly connected to the ball screw, can be rotated to finely adjust the position of the second platform 4. Three slotted photoelectric sensors 15 are installed on shaft 11, located at the upper limit, lower limit and far point respectively. A drag chain 16 is installed between the lifting mechanism 1 and the conveyor line 2. When the conveyor line 2 is lifted, the drag chain 16 moves synchronously with it. A touch screen 731 and a button switch 732 are provided in front of the protective cover 73 on the top of the frame 7. A three-color light 733 is installed on the protective cover 73 to display the equipment operating status. An observation window 734 is used to visually view the internal jig transmission status. The foot cups 71 at the bottom of the frame 7 adjust the level of the equipment to ensure stable operation.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A servo-driven jig lifting machine, characterized in that: The system includes a lifting mechanism (1), a conveyor line (2), and a frame (7). The lifting mechanism (1) includes two guide shafts (11), a first ball screw (12), and a first servo motor (13). The guide shafts (11) and the first ball screw (12) are longitudinally installed inside the frame (7). The upper and lower ends of the guide shafts (11) are installed between the frame (7) and the guide shafts (11) are rotatably connected to the frame (7). The upper and lower ends of the first ball screw (12) are installed between the frame (7) and the first ball screw (12) is mounted between the frame (7). The first servo motor (13) is mounted on one side of the top frame (7) of the first ball screw (12). The base of the first servo motor (13) is detachably connected to the bottom of the frame (7). The working end of the first servo motor (13) is rotatably connected to the frame (7). The first servo motor (13) is connected to the first ball screw (12). The first servo motor (13) provides power to the first ball screw (12). The conveyor line (2) is mounted on the lifting mechanism (1). The conveyor line (2) is detachably connected to the lifting mechanism (1).

2. The servo fixture lifting machine according to claim 1, characterized in that: Three slotted photoelectric sensors (15) are provided on the guide shaft (11). The three slotted photoelectric sensors (15) are respectively installed at the upper limit position, the lower limit position and the origin. A drag chain (16) is provided between the lifting mechanism (1) and the conveyor line (2). One end of the drag chain (16) is installed on the frame (7) and the drag chain (16) is detachably connected to the frame (7). The other end of the drag chain (16) is installed on the conveyor line (2) and the drag chain (16) is detachably connected to the conveyor line (2). The drag chain (16) is used to protect the cable of the conveyor line (2).

3. The servo fixture lifting machine according to claim 1, characterized in that: The guide shaft (11) is provided with a first bearing seat (17) at the connection between its upper and lower ends and the frame (7). The first bearing seat (17) is rotatably connected to the guide shaft (11) and is detachably connected to the frame (7). The first ball screw (12) is provided with a first screw seat (18) at the connection between its upper and lower ends and the frame (7). The first ball screw (12) is rotatably connected to the first screw seat (18) and is detachably connected to the frame (7).

4. A servo fixture lifting machine according to claim 1, characterized in that: A transmission mechanism (14) is provided at the working end of the first servo motor (13) and the upper end of the first ball screw (12). The transmission mechanism (14) includes multiple sets of synchronous pulleys (141) and a synchronous belt mechanism (142). Corresponding synchronous pulleys (141) are respectively installed at the working end of the first servo motor (13) and the upper end of the first ball screw (12). The synchronous pulleys (141) of the first servo motor (13) and the synchronous pulleys (141) of the first ball screw (12) are connected by the synchronous belt mechanism (142). The first servo motor (13) provides power to the first ball screw (12).

5. A servo fixture lifting machine according to claim 1, characterized in that: The conveyor line (2) includes a base plate (21), multiple sets of linear guides (22), multiple sets of sliders (23), multiple sets of second ball screws (24), a hexagonal drive shaft (25), a stepper motor (26), and a synchronous belt drive mechanism (27). Two sets of linear guides (22) are respectively installed on both sides of the base plate (21), and the linear guides (22) are detachably connected to the base plate (21). The sliders (23) are installed on the linear guides (22), and the sliders (23) are slidably connected to the linear guides (22). Two sets of second ball screws (24) are respectively installed on the sliders (23), and the moving parts of the second ball screws (24) are detachably connected to the sliders (23). Second screw seats (28) are provided at both ends of the second ball screws (24), and the second ball screws (24) and the second screw seats (28) are connected. The second ball screw (24) is connected to the frame (7) via the second screw seat (28). The hexagonal drive shaft (25) is mounted on the base plate (21) between the two sets of linear guides (22). The hexagonal drive shaft (25) is provided with drive shaft seats (29) at both ends. The hexagonal drive shaft (25) is rotatably connected to the drive shaft seats (29). The hexagonal drive shaft (25) is connected to the base plate (21) via the drive shaft seats (29). The stepper motor (26) is connected to the hexagonal drive shaft (25) via the synchronous belt transmission mechanism (27). The stepper motor (26) provides power to the hexagonal drive shaft (25). The base plate (21) is provided with two sets of linear bearings (8) at one end. The linear bearings (8) are detachably connected to the base plate (21). The linear bearings (8) are slidably connected to the guide shaft (11).

6. A servo fixture lifting machine according to claim 5, characterized in that: A first platform (3) is provided on the moving parts of the hexagonal drive shaft (25) and the second ball screw (24). The first platform (3) is fixedly connected to the moving parts of the second ball screw (24) and the moving parts of the hexagonal drive shaft (25). A rear belt line (31) is provided on one side of the first platform (3) and the hexagonal drive shaft (25). The rear belt line (31) is detachably connected to the first platform (3) and the hexagonal drive shaft (25). A second platform (4) is provided on the first screw seat (18) and the drive shaft seat (29) at the end away from the stepper motor (26). The second platform (4) is fixedly connected to the first screw seat (18) and the drive shaft seat (29). A front belt line (41) is provided on one side of the second platform (4) and the hexagonal drive shaft (25). The front belt line (41) is detachably connected to the second platform (4) and the hexagonal drive shaft (25).

7. A servo fixture lifting machine according to claim 6, characterized in that: Two sets of reflective photoelectric mechanisms (5) are provided at both ends of the second platform (4). The reflective photoelectric mechanism (5) is detachably connected to the second platform (4). A rotating handwheel (6) is provided on the second ball screw (24) on the outer side of the second screw seat (28) at one end of the second platform (4). The rotating handwheel (6) is fixedly connected to the second ball screw (24).

8. A servo fixture lifting machine according to claim 1, characterized in that: The bottom of the frame (7) is provided with a foot cup (71), which is detachably connected to the frame (7). The front of the frame (7) is provided with an openable door (72), which is rotatably connected to the frame (7). The top of the frame (7) is provided with a protective cover (73), which is detachably connected to the frame (7). The front door above the protective cover (73) is provided with a touch screen (731), a button switch (732), and a tri-color light (733). The top of the protective cover (73) is provided with an observation window (734). The touch screen (731), the button switch (732), the tri-color light (733), and the observation window (734) are all fixedly connected to the protective cover (73).

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