Lifting platform capable of moving transversely

Abstract

The utility model relates to a grinding and polishing machine, in particular to a lifting platform capable of moving transversely, which comprises a lifting plate, the lifting plate is directly or indirectly fixedly connected with a transverse moving plate, the middle of the transverse moving plate is fixedly connected with a first nut, first sliding blocks are fixedly arranged on the upper portion and the lower portion of the first nut respectively, and the first sliding blocks are in sliding fit with first guide rails. The first guide rail is horizontally arranged and fixedly arranged on the fixing plate, and the fixing plate is fixedly arranged on a rack of the grinding and polishing machine. First lead screws are rotationally arranged on the fixing plates corresponding to the two ends of the first guide rail, a first motor is fixedly arranged on the fixing plate at one end, and the first lead screws are in threaded connection with the first nuts; one end of the first lead screw is fixedly connected with a first driven synchronous pulley, an output shaft of the first motor is fixedly connected with a first driving synchronous pulley, and a first synchronous belt is wound on the first driven synchronous pulley and the first driving synchronous pulley. The grinding and polishing machine has remarkable advantages in the aspects of guaranteeing precision, reducing maintenance, reducing noise and vibration and the like.

Description

Technical Field

[0001] The utility model relates to a grinding and polishing machine, in particular to a lifting platform which can be moved laterally. Background Art

[0002] A metallographic grinder and polisher is a device used to prepare metal microscopic specimens. It grinds and polishes metal specimens to make the surface of the specimens smooth enough to facilitate metallographic analysis under a microscope. The Chinese utility model patent with publication number CN201645316U discloses a multi-station automatic metallographic grinder and polisher, and specifically discloses that the drive motor drives the slide plate to slide through a gear installed on the main shaft of the drive motor and a rack set on the slide plate along the direction of the slide rail. However, some potential defects of the gear / rack transmission include: the gear / rack transmission has low accuracy and is not applicable to grinding and polishing machines that require high-precision position control; the gear / rack transmission may generate large noise and vibration during operation, which not only affects the working environment, but also may have an adverse effect on the accuracy of grinding and polishing; the gear / rack transmission may have a reverse clearance, which will cause inaccurate positioning problems in the reciprocating motion of the grinding and polishing machine. Utility Model Content

[0003] In order to overcome the technical problem or one of the technical problems existing in the prior art, the utility model provides a transversely movable lifting platform for completing multi-station grinding and / or polishing processes, and the technical solution adopted is:

[0004] A transversely movable lifting platform comprises a lifting plate, which is directly or indirectly fixed to a transverse plate, and is characterized in that a first nut is fixed to the middle of the transverse plate, and a first slider is fixed on the upper and lower parts of the first nut respectively, and the first slider slidably cooperates with a first guide rail, and the first guide rail is arranged in the first horizontal direction and fixed on a fixed plate, and the fixed plate is fixed on a frame of a grinding and polishing machine; a first screw rod is rotated on the fixed plates at both ends of the first guide rail, and a first motor is fixed on the fixed plate at one end, and the first screw rod is threadedly connected to the first nut; one end of the first screw rod is fixed to a first driven synchronous pulley, and the output shaft of the first motor is fixed to a first driving synchronous pulley, and a first synchronous belt is wound around the first driven synchronous pulley and the first driving synchronous pulley.

[0005] Furthermore, a second motor and a second screw rod with a vertical axis are fixed on the lifting plate, the output shaft of the second motor is fixedly connected to the second active synchronous pulley, one end of the second screw rod is fixedly connected to the second driven synchronous pulley, and a second synchronous belt is wound around the second driven synchronous pulley and the second active synchronous pulley; the second screw rod is threadedly connected to a second nut, and the second nut is directly or indirectly fixed to the transverse plate; a vertically arranged second guide rail is fixed on the lifting plate, a second slider is directly or indirectly fixed on the transverse plate, and the second slider is slidably matched with the second guide rail.

[0006] Furthermore, the first screw rod and the first nut are discarded, and the first driven synchronous pulley and the first active synchronous pulley are rotatably arranged on the fixed plates at the two ends of the corresponding first guide rail, with the axial direction being horizontal, and the transverse plate is fixedly connected to the outer layer or inner layer of the first synchronous belt.

[0007] Furthermore, the first screw rod and the first nut are discarded, and the driven sprocket and the driving sprocket are rotated on the fixed plates corresponding to the two ends of the first guide rail, with the axial direction being horizontal, and chains are wound around the driven sprocket and the driving sprocket, the output shaft of the first motor is fixedly connected to the driving sprocket, and the transverse plate is fixedly connected to the outer ring or inner ring of the chain.

[0008] Compared with the prior art, the utility model uses a nut / screw rod instead of a gear / rack to achieve the lateral horizontal displacement of the transverse plate, which has the following beneficial technical effects:

[0009] 1. High-precision positioning:

[0010] The screw-nut transmission system can provide more precise lateral displacement due to its excellent positioning accuracy and repeatability, which is crucial to ensure the processing accuracy of the grinding and polishing machine.

[0011] 2. Self-locking performance:

[0012] The screw nut drive has good self-locking performance and can maintain the position of the traverse plate without additional braking devices, which is very beneficial for preventing accidental movement during processing.

[0013] 3. Low friction and low noise:

[0014] Screw-nut drives typically run smoothly with low friction and noise, which helps reduce vibration during grinding and polishing and improves processing quality.

[0015] 4. Simplified maintenance:

[0016] Lead screw drive systems are relatively simple to maintain, typically requiring only periodic lubrication, whereas rack / pinion systems may require more frequent maintenance to prevent wear.

[0017] 5. Reduce wear and tear:

[0018] Lead screw nut drives have relatively low wear, especially when high-quality lubricants and seals are used, which helps to extend the service life of the system.

[0019] 6. Smooth motion characteristics:

[0020] The screw-nut drive provides smooth and continuous motion, which is an important advantage for the lateral horizontal displacement of the grinder and polisher.

[0021] 7. Load capacity:

[0022] Although the screw nut drive has high rigidity, it can also withstand large loads and is suitable for carrying the weight of the grinding and polishing machine's traverse plate and the load during processing.

[0023] 8. Adaptability:

[0024] The screw nut transmission system can adapt to different load and speed requirements. By selecting the appropriate screw nut specifications and configurations, it can be easily adapted to the specific application needs of the grinding and polishing machine.

[0025] In general, the use of a screw-nut drive system can bring significant advantages to grinders and polishers in terms of ensuring accuracy, reducing maintenance, and reducing noise and vibration, thereby improving overall processing performance and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a transversely movable lifting platform in Example 1.

[0027] Figure 2 yes Figure 1 A partial enlarged view of .

[0028] Figure 3 This is a schematic diagram of the installation position of a transversely movable lifting platform in a multi-station grinding and polishing machine in Example 1. DETAILED DESCRIPTION

[0029] The utility model is further described below in conjunction with specific embodiments and drawings.

[0030] Embodiment 1, a nut / screw-based transversely movable lifting platform, comprises a lifting plate 101, on which a second motor 112 and a second screw 113 with a rotating axis in a vertical direction are fixedly provided, the output shaft of the second motor 112 is fixedly connected to a second active synchronous pulley 117, one end of the second screw 113 is fixedly connected to a second driven synchronous pulley 118, a second synchronous belt 119 is wound around the second driven synchronous pulley 118 and the second active synchronous pulley 117; the second screw 113 is threadedly connected to a second nut 114, and the second nut 114 is directly or indirectly fixedly connected to the transverse plate 102; a vertically arranged second guide rail 115 is fixedly provided on the lifting plate 101, and a second slider 116 is directly or indirectly fixedly provided on the transverse plate 102, and the second slider 116 is slidably matched with the second guide rail 115.

[0031] The lifting plate 101 is indirectly fixed to the transverse plate 102, and the middle part of the transverse plate 102 is fixed to the first nut 103. The upper and lower parts of the first nut 103 are respectively fixed with first sliders 104, and the first slider 104 slidably cooperates with the first guide rail 105. The first guide rail 105 is first horizontally arranged and fixed on the fixed plate 106, and the fixed plate 106 is fixed on the frame of the grinding and polishing machine; the first screw rod 107 is rotated on the fixed plates 106 at both ends of the first guide rail 105, and the first motor 110 is fixed on the fixed plate 106 at one end, and the first screw rod 107 is threadedly connected to the first nut 103; one end of the first screw rod 107 is fixed to the first driven synchronous pulley 108, and the output shaft of the first motor 110 is fixed to the first active synchronous pulley 109, and the first driven synchronous pulley 108 and the first active synchronous pulley 109 are wound with the first synchronous belt 111.

[0032] The lifting plate 101 is used to install the workpiece of the workpiece drive device grinding and polishing machine for driving the workpiece to rotate and apply axial force to the workpiece. By fixing the second motor 112 and the second screw 113 on it, the vertical movement capability of the lifting plate is realized, so that the working height can be adjusted according to the processing requirements. The fixed connection design of the second nut 114 and the fixed plate 106 ensures the stability and accuracy of the lifting plate 101 during the vertical movement, and also makes the maintenance and adjustment of the lifting mechanism easier. The sliding cooperation of the second guide rail 115 and the second slider 116 enables the lifting plate 101 to move smoothly in the vertical direction, reduces the friction and noise during the movement, and improves the life and work efficiency of the lifting mechanism. The indirect fixed connection design of the transverse plate 102 allows the transverse plate to move horizontally relative to the lifting plate, increases the flexibility of the platform, and enables it to adapt to the processing requirements of different positions. The fixed first slider 104 at the upper and lower ends of the first nut 103, and the sliding cooperation with the first guide rail 105, realizes the precise lateral displacement of the transverse plate, and ensures the positioning accuracy during the processing. The first guide rail 105 is arranged horizontally on the fixed plate, providing a stable lateral movement path for the transverse plate, ensuring the stability and reliability during the transverse movement. The first screw rod 107 and the first motor 110 are driven by the first synchronous belt 111 and the synchronous pulleys 108 and 109, realizing smooth and synchronous lateral movement of the transverse plate, and improving the consistency and repeatability of the movement. The first motor 110 serves as the driving force source for the movement of the transverse plate. Through its precise control, the precise position control of the transverse plate can be achieved to meet the requirements of high-precision processing. Through the combination of these technical features, the lifting platform of Example 1 can achieve precise three-dimensional movement in the grinding and polishing machine, improve the processing flexibility and efficiency of the equipment, while also simplifying the mechanical structure, reducing maintenance costs, and enhancing the stability and reliability of the system. This design is suitable for complex processing tasks that require precise control of processing position and height, and can significantly improve the performance of the grinding and polishing machine.

[0033] Embodiment 2, a lifting platform that can be laterally moved based on a synchronous belt, discards the first screw rod 107 and the first nut 103 in Embodiment 1, and in addition, the first driven synchronous pulley 108 and the first driving synchronous pulley 109 are rotated on the fixed plates 106 corresponding to the two ends of the first guide rail 105, with the axial direction being horizontal, and the transverse plate 102 is fixedly connected to the outer layer or inner layer of the first synchronous belt 111. The rest is the same as Embodiment 1.

[0034] By removing the first screw 107 and the first nut 103, the lifting platform structure of Example 2 is more simplified, the number of mechanical parts is reduced, the manufacturing and maintenance costs are reduced, and the overall weight is also reduced. Compared with the screw nut drive, the synchronous belt drive has lower friction and wear characteristics, which means that during the movement of the transverse plate 102, there is less energy loss, higher efficiency, and a longer service life of the synchronous belt. The first driven synchronous pulley 108 and the first active synchronous pulley 109 are rotated on the fixed plate 106, and the axial direction is horizontal. This layout helps to improve the transmission efficiency and ensure the smooth and synchronous movement of the transverse plate 102. The transverse plate 102 is fixedly connected to the outer layer or inner layer of the first synchronous belt 111. This design enhances the transmission synchronization performance of the synchronous belt, ensures that the speed and position control of the transverse plate during movement is more accurate, and can improve the grinding and polishing efficiency. The synchronous belt drive system has low vibration and low noise during operation, which helps to improve the movement stability of the entire lifting platform. For precision processing equipment such as grinding and polishing machines, stability is an important factor in improving processing quality. Since the synchronous belt transmission system has a simple structure, it is easier to maintain. It is only necessary to regularly check the tension and wear of the synchronous belt, and adjust or replace it when necessary, which greatly reduces the maintenance workload. The lifting platform design of Example 2 allows the transverse plate 102 to move over a large range in the horizontal direction, and has strong adaptability and can meet the requirements of different processing tasks for the position of the working area. Through these improvements, the lifting platform of Example 2 maintains the original lifting function while optimizing the transmission system to achieve more efficient, smooth and low-maintenance lateral movement, which is suitable for grinding and polishing operations with high requirements for precision and stability.

[0035] Embodiment 3 is a fully synchronous belt transversely movable lifting platform. Based on Embodiment 2, not only the first screw rod 107 and the first nut 103 in Embodiment 1 are discarded, but also the second screw rod 113 and the second nut 114 are discarded, and they are directly replaced by synchronous belts.

[0036] Embodiment 4, a chain-based transversely movable lifting platform, discards the first screw rod 107 and the first nut 103 in Embodiment 1, and also discards the synchronous pulley and synchronous belt. In addition, the driven sprocket and the driving sprocket are rotated on the fixed plates 106 at the two ends of the corresponding first guide rail 105, with the axial direction being horizontal, and the chain is wound around the driven sprocket and the driving sprocket, and the transverse plate 102 is fixedly connected to the outer ring or inner ring of the chain. Of course, the output shaft of the first motor 110 is fixedly connected to the driving sprocket, and the rest is the same as Embodiment 1.

[0037] Chain drive is usually able to transmit greater force, which is a significant advantage for lifting platforms that need to apply a large load on the transverse plate 102. Due to the strength and durability of the chain, the lifting platform of Example 3 is more suitable for high-load working environments and can provide stable lateral movement capabilities. The chain drive is less likely to elastically slide under high loads, which means that the positioning of the transverse plate 102 is more accurate, improving the working efficiency of the entire system. The maintenance of the chain and sprocket is relatively simple, the tension of the chain is easy to adjust, and the replacement of the chain and sprocket when necessary is more convenient and economical. The horizontal layout of the driven sprocket and the driving sprocket helps to improve the transmission efficiency and ensure the smooth and synchronous movement of the transverse plate 102. The horizontal layout of the driven sprocket and the driving sprocket helps to improve the transmission efficiency and ensure the smooth and synchronous movement of the transverse plate 102. Compared with the screw nut and synchronous belt drive system, the cost of chain drive is usually lower, which helps to reduce the overall manufacturing cost of the lifting platform. The reliability of the chain drive is high, especially in long-term operation and repetitive work, the stability of the chain can ensure the continuous and stable operation of the transverse plate 102. Through the integration of these technical features, the lifting platform of Example 3 achieves more reliable and economical lateral movement through the chain transmission system while maintaining the original lifting function, and is particularly suitable for grinding and polishing operations with heavy loads or harsh working environments.

[0038] The detailed description of the utility model is based on the embodiments of the transversely movable lifting platform, but it should be understood that the utility model is not limited to these specific embodiments. For those skilled in the art, various modifications or improvements can be made to the utility model based on the contents disclosed in this specification, and all these modifications or improvements should be included in the protection scope of the claims of the utility model.

Claims

1. A transversely movable lifting platform, comprising a lifting plate (101), wherein the lifting plate (101) is directly or indirectly fixedly connected to a transversely movable plate (102), characterized in that: The middle part of the transverse plate (102) is fixedly connected to a first nut (103); the upper and lower parts of the first nut (103) are respectively fixedly connected to first sliders (104); the first sliders (104) are slidably matched with the first guide rail (105); the first guide rail (105) is arranged in a first horizontal direction and fixedly connected to a fixed plate (106); the fixed plate (106) is fixedly connected to a frame of the grinding and polishing machine; first screw rods (107) are rotatedly connected to the fixed plates (106) at both ends of the first guide rail (105); a first motor (110) is fixedly connected to the fixed plate (106) at one end; the first screw rod (107) is threadedly connected to the first nut (103); one end of the first screw rod (107) is fixedly connected to a first driven synchronous pulley (108); the output shaft of the first motor (110) is fixedly connected to a first driving synchronous pulley (109); a first synchronous belt (111) is wound around the first driven synchronous pulley (108) and the first driving synchronous pulley (109).

2. A transversely movable lifting platform according to claim 1, characterized in that: A second motor (112) and a second screw rod (113) whose axial direction is vertical are fixedly arranged on the lifting plate (101); an output shaft of the second motor (112) is fixedly connected to a second active synchronous pulley (117); one end of the second screw rod (113) is fixedly connected to a second driven synchronous pulley (118); a second synchronous belt (119) is wound around the second driven synchronous pulley (118) and the second active synchronous pulley (117); the second screw rod (113) is screwed to a second nut (114); the second nut (114) is directly or indirectly fixedly connected to the transverse plate (102); a second guide rail (115) arranged vertically is fixedly arranged on the lifting plate (101); a second slider (116) is directly or indirectly fixedly arranged on the transverse plate (102); the second slider (116) is slidably matched with the second guide rail (115).

3. A transversely movable lifting platform according to claim 1 or 2, characterized in that: The first screw rod (107) and the first nut (103) are discarded, and the first driven synchronous pulley (108) and the first driving synchronous pulley (109) are rotated on the fixed plates (106) at the two ends of the corresponding first guide rail (105), with the axial direction being horizontal, and the transverse plate (102) is fixedly connected to the outer layer or the inner layer of the first synchronous belt (111).

4. A transversely movable lifting platform according to claim 1 or 2, characterized in that: The first screw rod (107) and the first nut (103) are discarded, and the driven sprocket and the driving sprocket are rotatably arranged on the fixed plates (106) at the two ends of the corresponding first guide rail (105), with the axial direction being horizontal, and a chain is wound around the driven sprocket and the driving sprocket, the output shaft of the first motor (110) is fixedly connected to the driving sprocket, and the transverse plate (102) is fixedly connected to the outer ring or the inner ring of the chain.

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