An adjustable lifting platform tool

Abstract

The utility model relates to industrial manufacturing technical field, concretely relates to an adjustable lifting platform tool, including casing and elevating system, the casing includes upper casing and lower casing, and the upper casing opening side is nested in the inside or outside of lower casing opening side along Y axle direction, the elevating system includes the drive assembly along X axle direction arrangement, a plurality of transmission assemblies along Y axle direction arrangement and a plurality of elevating assemblies along Z axle direction arrangement, and transmission assembly and drive assembly transmission cooperation, elevating assembly and transmission assembly transmission cooperation, and the inside of lower casing is arranged with a plurality of first screw rod extending along Z axle direction, and the lower end of first screw rod is with elevating assembly screw thread cooperation, the lower end of upper casing is equipped with the boss, and the side wall of lower casing is equipped with the sliding slot, and one side of sliding slot is equipped with the scale, and the boss is embedded in the sliding slot and with sliding slot sliding cooperation. The utility model provides adjustable lifting platform tool can give attention to high stability, high precision transmission and provide intuitive lifting height display.

Description

Technical Field

[0001] This utility model relates to the field of industrial manufacturing technology, and more specifically, to an adjustable lifting platform tooling. Background Technology

[0002] Adjustable lifting platforms are widely used as a fundamental component for height adjustment in industrial manufacturing, precision machining, and experimental equipment. Conventional adjustable lifting platforms typically employ a ball screw and linkage mechanism for lifting: rotating the side adjustment knob drives the ball screw, which in turn moves the slider left and right, utilizing the lever principle of the linkage structure to move the lifting platform up and down. Furthermore, some existing technologies rely on a single ball screw drive for height adjustment. This type of structure mainly consists of a base plate, top plate, transmission screw, and linkage assembly, where the rotation of the single screw drives the extension and retraction of the linkage to achieve platform lifting.

[0003] On the one hand, due to the long length of the linkage mechanism, the mechanical clearance is difficult to control precisely. When the platform is under heavy load, the linkage is prone to slight deformation, causing the platform to sway during lifting and lowering, which cannot meet the requirements of high-precision operation. In addition, the single ball screw transmission structure has a large stroke span. If the top is unevenly stressed, the platform is prone to tilting, resulting in significant height adjustment errors. On the other hand, due to the lack of a design to display the lifting and lowering height in real time, operators need to use additional measuring tools, such as rulers, or rely on experience to judge the platform height. This is not only cumbersome but may also affect the accuracy of operation due to human error. Chinese utility model patent with publication number CN207581272U provides an automatic lifting and following mechanical safety device and uses a proximity switch to control the motor to realize the start and stop of lifting and lowering. However, the proximity switch automatic stop method can only trigger the stop action at a preset height point and cannot provide real-time feedback on the current height. Operators need to confirm the position through other methods (such as preset programs or additional measurements), which is difficult to meet the requirements of real-time height monitoring in high-precision operation.

[0004] Therefore, there is an urgent need for an adjustable lifting platform tooling structure that can take into account high stability, high precision transmission, and intuitive height display. Utility Model Content

[0005] The purpose of this utility model is to provide an adjustable lifting platform fixture to solve the technical problem mentioned in the background art of how to balance high stability, high precision transmission and intuitive height display in the adjustable lifting platform fixture structure.

[0006] This utility model is achieved through the following technical solution: an adjustable lifting platform tooling, including a housing and a lifting mechanism; The housing includes an upper housing and a lower housing with a single-sided opening. The opening side of the upper housing is nested inside or outside the opening side of the lower housing along the Y-axis direction. The upper housing and the lower housing together form an installation area for installing the lifting mechanism. The lifting mechanism includes a drive assembly arranged along the X-axis, multiple transmission assemblies arranged along the Y-axis, and multiple lifting assemblies arranged along the Z-axis. The transmission assemblies and the drive assembly are connected by a first transmission member to rotate along the Y-axis when the drive assembly rotates along the X-axis. The lifting assemblies are rotatably connected to the bottom wall of the lower housing and are connected by a second transmission member to the transmission assembly to rotate along the Z-axis when the transmission assembly rotates along the Y-axis. Multiple first screws extending along the Z-axis are arranged inside the lower housing and are distributed at different positions inside the upper housing. The lower ends of the first screws are threaded into the lifting assemblies to run linearly along the Z-axis when the lifting assemblies rotate along the Z-axis. The lower end of the upper housing is provided with a protrusion, and the side wall of the lower housing is provided with a sliding groove along the Y-axis. One side of the sliding groove is provided with a scale, and the protrusion is embedded in the sliding groove and slides in cooperation with the sliding groove.

[0007] According to a preferred embodiment, the drive assembly includes a drive member and a first connecting rod. The drive member is mounted on the outside of the lower housing, and one end of the first connecting rod is connected to the drive member, while the other end extends into the mounting area.

[0008] According to a preferred embodiment, the driving element is a handwheel.

[0009] According to a preferred embodiment, the first connecting rod is mounted in the middle of the installation area via a first bearing seat, and a plurality of the transmission components are disposed on both sides of the first connecting rod.

[0010] According to a preferred embodiment, the transmission assembly includes a second connecting rod, which is mounted on the side of the first connecting rod via a second bearing seat; The first transmission component includes a first bevel gear spaced apart on the first connecting rod and a second bevel gear located at the first end of the second connecting rod. Multiple first bevel gears are provided on the first connecting rod, and the multiple first bevel gears mesh with second bevel gears on different second connecting rods.

[0011] According to a preferred embodiment, the second transmission component includes a worm and a worm wheel. The worm is mounted on the axial direction of the second connecting rod via a third bearing seat and is connected to the second end of the second connecting rod. The worm wheel is sleeved on the lifting assembly and meshes with the worm.

[0012] According to a preferred embodiment, the lifting assembly includes a roller bearing and a second screw. The outer ring of the roller bearing is embedded in the inner bottom wall of the lower housing. The lower end of the second screw is rotatably engaged with the inner ring of the roller bearing. The worm gear is sleeved on the second screw. The upper end of the second screw has an internal thread or an external thread that is threaded with the first screw.

[0013] According to a preferred embodiment, the lifting assembly is disposed on the outside of the transmission assembly.

[0014] According to a preferred embodiment, there are a total of 4 lifting components, and the 4 lifting components are respectively arranged at the four corners of the lower housing.

[0015] According to a preferred embodiment, the upper housing opening side is nested inside the lower housing opening side along the Y-axis direction.

[0016] The technical solution of the adjustable lifting platform tooling provided by this utility model has at least the following advantages and beneficial effects: (1) The lifting mechanism adopts a layered arrangement of X-axis drive assembly, Y-axis transmission assembly and Z-axis lifting assembly, and realizes the synchronous operation of each lifting assembly during driving through the transmission cooperation of the first transmission component and the second transmission component, which can effectively avoid the tilting problem of single screw transmission and effectively improve the load-bearing capacity of the tooling; in addition, the side wall of the lower housing is opened with a graduated sliding groove, which, together with the sliding of the protrusion of the upper housing, can display the lifting height in real time without the need for additional measuring tools; (2) The first screw and the lifting assembly are threaded together, changing the lever transmission of the traditional connecting rod to the screw transmission, avoiding the deformation problem of the connecting rod due to the long span and load; The mechanical clearance of the spiral drive is very small and has a self-locking characteristic, which makes the lifting platform highly stable when under load and suitable for high-precision operation; (3) The lifting components are distributed at the four corners of the lower shell and synchronous lifting is achieved through bevel gear and worm gear transmission; compared with single screw transmission, the force at the four corners is balanced, and even if the top load is uneven, the torque deviation can be offset through multiple transmission paths, significantly reducing the risk of platform tilting and improving structural stability; (4) The opening side of the upper shell is nested inside or outside the lower shell, forming a guide structure, which can effectively limit the lateral displacement during the lifting process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the internal structure of the adjustable lifting platform tooling provided in Embodiment 1 of this utility model; Figure 2 This is a schematic diagram of the longitudinal section of the adjustable lifting platform tooling provided in Embodiment 1 of this utility model; Figure 3 This is an external schematic diagram of Embodiment 1 of the present utility model; Figure 4 This is a schematic diagram of the upper shell provided in Embodiment 1 of this utility model; Reference numerals: 100-House, 110-Upper house, 111-Protrusion, 112-First screw, 120-Lower house, 121-Slide groove, 200-Lifting mechanism, 210-Drive assembly, 211-Handwheel, 212-First connecting rod, 213-First bearing seat, 220-Transmission assembly, 221-Second connecting rod, 222-Second bearing seat, 230-Lifting assembly, 231-Ball bearing, 232-Second screw, 240-First transmission component, 241-First bevel gear, 242-Second bevel gear, 250-Second transmission component, 251-Worm, 252-Worm wheel. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Example 1 This embodiment provides an adjustable lifting platform fixture. Figure 1 This is a schematic diagram of the internal structure of the adjustable lifting platform fixture. Figure 2 This is a schematic diagram of the longitudinal section of the adjustable lifting platform fixture. Figure 3 See the external schematic diagram of the adjustable lifting platform fixture. Figures 1 to 3 As shown, the adjustable lifting platform fixture includes a housing 100 and a lifting mechanism 200.

[0020] The housing 100 includes an upper housing 110 and a lower housing 120 with a single-sided opening. The opening side of the upper housing 110 is nested along the Y-axis direction inside or outside the opening side of the lower housing 120, preferably inside. The upper housing 110 and the lower housing 120 together form an installation area for installing the lifting mechanism 200.

[0021] Specifically, the opening side of the upper housing 110 is nested inside or outside the lower housing 120 to form a guide structure, which can effectively limit lateral displacement during the lifting process, prevent lateral deviation during the lifting process, and maintain the stability of the lifting process.

[0022] The lifting mechanism 200 includes a drive assembly 210 arranged along the X-axis, a plurality of transmission assemblies 220 arranged along the Y-axis, and a plurality of lifting assemblies 230 arranged along the Z-axis. The transmission assembly 220 is driven by the drive assembly 210 through a first transmission member 240, so that the drive assembly 210 rotates along the Y-axis when it rotates along the X-axis. The lifting assembly 230 is rotatably engaged with the inner bottom wall of the lower housing 120 and is driven by the transmission assembly 220 through a second transmission member 250, so that the transmission assembly 220 rotates along the Z-axis when it rotates along the Y-axis. A plurality of first screws 112 extending along the Z-axis are arranged inside the lower housing 120. The plurality of first screws 112 are distributed at different positions inside the upper housing 110. The lower end of the first screw 112 is threadedly engaged with the lifting assembly 230, so that the lifting assembly 230 runs linearly along the Z-axis when it rotates along the Z-axis.

[0023] The lifting mechanism 200 adopts a layered arrangement of X-axis drive assembly 210, Y-axis transmission assembly 220 and Z-axis lifting assembly 230, and achieves synchronous operation of each lifting assembly 230 during driving through the transmission cooperation of the first transmission component 240 and the second transmission component 250. This can effectively avoid the tilting problem of single screw transmission and effectively improve the load-bearing capacity of the tooling.

[0024] See Figure 4 As shown, the lower end of the upper housing 110 has a protrusion 111, and the side wall of the lower housing 120 has a groove 121 along the Y-axis. One side of the groove 121 has graduations, and the protrusion 111 is embedded in the groove 121 and slides within it. Specifically, the graduated groove 121 on the side wall of the lower housing 120, combined with the sliding of the protrusion 111 of the upper housing 110, allows for real-time display of the lifting height without the need for additional measuring tools.

[0025] Example 2 This embodiment, based on the technical solution provided in Embodiment 1, further explains the components of the lifting structure: Regarding the drive assembly 210, in some embodiments of this example, the drive assembly 210 includes a drive component and a first connecting rod 212. The drive component is installed on the outside of the lower housing 120. One end of the first connecting rod 212 is connected to the drive component, and the other end extends into the installation area. The drive component is a handwheel 211, but it can also be a motor or the like, and no specific limitation is made here.

[0026] In this embodiment, the first connecting rod 212 is mounted in the middle of the installation area via a first bearing seat 213, and a plurality of transmission components 220 are disposed on both sides of the first connecting rod 212. Each transmission component 220 includes a second connecting rod 221, which is mounted on the side of the first connecting rod 212 via a second bearing seat 222. The first transmission component 240 includes a first bevel gear 241 spaced apart on the first connecting rod 212 and a second bevel gear 242 disposed at the first end of the second connecting rod 221. Multiple first bevel gears 241 are disposed on the first connecting rod 212, and each of the multiple first bevel gears 241 meshes with a second bevel gear 242 on a different second connecting rod 221.

[0027] The second transmission component 250 includes a worm 251 and a worm wheel 252. The worm 251 is mounted axially on the second connecting rod 221 via a third bearing seat and is connected to the second end of the second connecting rod 221. The worm wheel 252 is sleeved on the lifting assembly 230 and meshes with the worm 251. Further, the lifting assembly 230 includes a roller bearing and a second screw 232. The outer ring of the roller bearing is embedded in the inner bottom wall of the lower housing 120. The lower end of the second screw 232 is rotatably engaged with the inner ring of the roller bearing. The worm wheel 252 is sleeved on the second screw 232. The upper end of the second screw 232 has an internal or external thread that engages with the threaded first screw 112.

[0028] Specifically, the first screw 112 is threadedly engaged with the lifting assembly 230, changing the traditional lever transmission of the connecting rod to a helical transmission, thus avoiding the deformation problem of the connecting rod due to long span and load. The mechanical clearance of the threaded transmission is extremely small and has a self-locking characteristic, which makes the lifting platform highly stable when under load, and is suitable for high-precision operation.

[0029] Furthermore, the lifting assembly 230 is arranged on the outside of the transmission assembly 220. There are a total of 4 lifting assemblies 230, which are respectively arranged at the four corners of the lower housing 120.

[0030] In this embodiment, the lifting components 230 are distributed at the four corners of the lower housing 120, and synchronous lifting is achieved through bevel gears and worm gears 252 and worm 251. Compared with single screw drive, the force at the four corners is balanced. Even if the load at the top is uneven, the torque deviation can be offset through multiple transmission paths, which significantly reduces the risk of platform tilting and improves structural stability.

[0031] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An adjustable lifting platform fixture, characterized in that, Includes a housing (100) and a lifting mechanism (200); The housing (100) includes an upper housing (110) and a lower housing (120) with a single-sided opening. The opening side of the upper housing (110) is nested along the Y-axis direction inside or outside the opening side of the lower housing (120). The upper housing (110) and the lower housing (120) together form an installation area for installing the lifting mechanism (200). The lifting mechanism (200) includes a drive assembly (210) arranged along the X-axis, a plurality of transmission assemblies (220) arranged along the Y-axis, and a plurality of lifting assemblies (230) arranged along the Z-axis. The transmission assemblies (220) are connected to the drive assembly (210) via a first transmission member (240) to rotate along the Y-axis when the drive assembly (210) rotates along the X-axis. The lifting assemblies (230) are rotatably connected to the bottom wall of the lower housing (120) via a second transmission member. (250) is in transmission cooperation with the transmission assembly (220) so that when the transmission assembly (220) rotates in the Y-axis direction, it rotates in the Z-axis direction. A plurality of first screws (112) extending in the Z-axis direction are arranged inside the lower housing (120). The plurality of first screws (112) are distributed at different positions inside the upper housing (110). The lower end of the first screw (112) is threadedly engaged with the lifting assembly (230) so that when the lifting assembly (230) rotates in the Z-axis direction, it runs in a straight line in the Z-axis direction. The lower end of the upper housing (110) is provided with a protrusion (111), and the side wall of the lower housing (120) is provided with a sliding groove (121) along the Y-axis direction. One side of the sliding groove (121) is provided with a scale, and the protrusion (111) is embedded in the sliding groove (121) and slides in cooperation with the sliding groove (121).

2. The adjustable lifting platform fixture as described in claim 1, characterized in that, The drive assembly (210) includes a drive member and a first connecting rod (212). The drive member is installed on the outside of the lower housing (120). One end of the first connecting rod (212) is connected to the drive member, and the other end extends into the installation area.

3. The adjustable lifting platform fixture as described in claim 2, characterized in that, The driving component is a handwheel (211).

4. The adjustable lifting platform fixture as described in claim 2, characterized in that, The first connecting rod (212) is mounted in the middle of the installation area via the first bearing seat (213), and the plurality of transmission components (220) are respectively disposed on both sides of the first connecting rod (212).

5. The adjustable lifting platform fixture as described in claim 4, characterized in that, The transmission assembly (220) includes a second connecting rod (221), which is mounted on the side of the first connecting rod (212) via a second bearing seat (222); The first transmission component (240) includes a first bevel gear (241) spaced on the first connecting rod (212) and a second bevel gear (242) disposed at the first end of the second connecting rod (221). Multiple first bevel gears (241) are provided on the first connecting rod (212), and multiple first bevel gears (241) mesh with second bevel gears (242) on different second connecting rods (221).

6. The adjustable lifting platform fixture as described in claim 5, characterized in that, The second transmission component (250) includes a worm (251) and a worm wheel (252). The worm (251) is mounted on the axial direction of the second connecting rod (221) through a third bearing seat and is connected to the second end of the second connecting rod (221). The worm wheel (252) is sleeved on the lifting assembly (230) and meshes with the worm (251).

7. The adjustable lifting platform fixture as described in claim 6, characterized in that, The lifting assembly (230) includes a roller bearing and a second screw (232). The outer ring of the roller bearing is embedded in the inner bottom wall of the lower housing (120). The lower end of the second screw (232) is rotatably engaged with the inner ring of the roller bearing. The worm gear (252) is sleeved on the second screw (232). The upper end of the second screw (232) has an internal thread or an external thread that is threaded with the first screw (112).

8. The adjustable lifting platform fixture as described in any one of claims 1 to 7, characterized in that, The lifting assembly (230) is located on the outside of the transmission assembly (220).

9. The adjustable lifting platform fixture as described in claim 8, characterized in that, There are a total of 4 lifting components (230), and the 4 lifting components (230) are respectively set at the four corners of the lower shell (120).

10. The adjustable lifting platform fixture as described in claim 1, characterized in that, The upper housing (110) is nested along the Y-axis direction on the inner side of the opening side of the lower housing (120).

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