Six-column jacking device

Abstract

This utility model relates to a lifting device, and more particularly to a six-guide-column lifting device, comprising a base plate, a first lifting plate, a fixed plate, and a second lifting plate, and further comprising a driving component, a lead screw and nut assembly, guide columns, and guide sleeves. The driving component is fixed to the base plate and drives the lead screw and nut assembly. The first lifting plate is driven by the lead screw and nut assembly, and the top end of the lead screw and nut assembly is rotatably connected to the fixed plate. The guide columns include a first guide column and a second guide column, both parallel to the lead screw and nut assembly. The bottom end of the first guide column is fixed to the base plate, and the top end of the second guide column is fixed to the first lifting plate, and the top end is fixed to the second lifting plate. The technical solution of this utility model uses three guide columns as the main power guide for the driving component to drive the lead screw and nut assembly, and the other three guide columns as the driven guides for the lifting device, effectively increasing the stability of the overall structure while simplifying the overall cost and processing difficulty.

Description

Technical Field

[0001] This utility model relates to a lifting device, and more particularly to a six-guide-column lifting device. Background Technology

[0002] Currently, integrated lifting devices mostly use either servo electric cylinders or pneumatic cylinders. The machining of servo electric cylinders requires both integrated casting of the blank and precision machining of the cylinder barrel through boring, honing, and grinding, resulting in higher costs and greater manufacturing difficulty. Pneumatic cylinders are generally used for movement between two points, and are not easily implemented for precision movements requiring infinitely continuous position.

[0003] In addition, some lifting devices can meet the required precision in lifting and lowering lighter materials; however, when the material being lifted is heavy and its center of gravity is uncertain (the material's center of gravity may not be on the same vertical line as the lifting device's center of gravity), the lifting device's material support platform needs to have a large support surface and good overall stability. Otherwise, the pressure exerted by the material on the material support platform will cause the platform to tilt relative to the guide column of the lifting device, resulting in the guide column being subjected to pressure from the material support platform. This will cause the clearance between the material support platform and the guide column (which should normally be a uniformly wide annular clearance) to narrow locally, thus affecting the precision of the lifting and lowering motion of the material support platform.

[0004] Therefore, a design is needed that can increase the overall structural stability and guiding accuracy of the lifting device. Utility Model Content

[0005] In view of this, the present invention provides a six-guide-column lifting device, which aims to provide a design that can increase the overall structural stability and guiding accuracy of the lifting device.

[0006] To provide the above design, the six-column lifting device provided by this utility model includes a base plate, a first lifting plate, a fixed plate, and a second lifting plate arranged sequentially from bottom to top. It also includes a driving component, a lead screw and nut assembly, guide columns, and guide sleeves. The driving component is fixed on the base plate and is driven to connect to the lead screw and nut assembly. The first lifting plate is driven to connect to the lead screw and nut assembly, and the top end of the lead screw and nut assembly is rotatably connected to the fixed plate. The guide post includes a first guide post and a second guide post, both of which are parallel to the lead screw and nut assembly. The bottom end of the first guide post is fixed to the base plate and the top end is fixed to the fixed plate. The bottom end of the second guide post is fixed to the first lifting plate and the top end is fixed to the second lifting plate. The second guide post passes through the fixed plate. The first lifting plate and the fixed plate are both provided with guide sleeves for the guide post to pass through. The first guide post and the second guide post are provided at two symmetrical locations on the base plate with respect to the lead screw and nut assembly. The first guide post passes through both ends of the first lifting plate along its length, and the second guide post is fixedly connected to both ends of the second lifting plate along its length.

[0007] Optionally, the guide post includes three first guide posts and three second guide posts; one or two first guide posts are provided at two symmetrical locations on the base plate about the lead screw and nut assembly; one or two second guide posts are provided at two symmetrical locations on the base plate about the lead screw and nut assembly.

[0008] Optionally, the two first guide posts located at the same end of the first lifting plate are symmetrical about the central axis of the length direction of the first lifting plate; the two second guide posts located at the same end of the first lifting plate are symmetrical about the central axis of the length direction of the first lifting plate.

[0009] Optionally, the number of guide posts at both ends of the first lifting plate along its length is the same.

[0010] Optionally, it also includes a transmission device located below the substrate, wherein the lead screw and nut assembly and the drive member both extend below the substrate and are connected to the transmission device.

[0011] Optionally, the driving component is a motor; the transmission device is a transmission pulley or a transmission gear.

[0012] Optionally, the transmission device is a transmission pulley, the base plate is provided with a slot, the slot is fitted with an insert plate, the driving component is fixed to the insert plate, the base plate is provided with a mounting hole, the insert plate is provided with a strip hole, and the strip hole and the mounting hole are used for inserting connectors.

[0013] Optionally, the driving element is a linear driving element; the transmission device includes a meshing rack and a gear, the rack being adapted to move linearly under the drive of the driving element, and the gear being fixed to the lead screw and nut assembly.

[0014] Optionally, the substrate, the first lifting plate, the fixed plate, and the second lifting plate are all rectangular plates with the same length direction.

[0015] The technical solution of this utility model has the following advantages: Three guide pillars are used as the main power guide for driving the lead screw and nut assembly, and another three guide pillars are used as the driven guide for the lifting device, which effectively increases the stability of the overall structure and simplifies the overall cost and processing difficulty. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a front view of the six-guide-column lifting device in an embodiment of this utility model.

[0018] Figure 2 This is a perspective view of the six-guide-column lifting device in an embodiment of this utility model.

[0019] Figure 3 This is a schematic diagram of the bottom structure of the six-guide-column lifting device in this embodiment of the present invention.

[0020] In the figure: base plate 1, slot 1a, insert plate 1b, mounting hole 1c, strip hole 1d, window 1e, first lifting plate 2, fixing plate 3, second lifting plate 4, driving component 5, lead screw and nut assembly 6, lead screw 61, nut seat 62, guide post 7, first guide post 71, second guide post 72, guide sleeve 8, transmission device 9. Detailed Implementation

[0021] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0022] Unless otherwise explicitly specified and limited, the terms "setup," "installation," and "connection" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of these terms based on the specific circumstances.

[0023] The terms "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of this utility model is usually placed in during use. They are only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0025] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0026] Please refer to Figure 1 This utility model embodiment provides a six-guide-post lifting device, including a base plate 1, a first lifting plate 2, a fixed plate 3, and a second lifting plate 4 arranged sequentially from bottom to top. The base plate 1, the first lifting plate 2, the fixed plate 3, and the second lifting plate 4 are preferably rectangular plates with the same length direction. It also includes a driving component 5 fixed on the base plate 1, a screw and nut assembly 6 connecting the base plate 1 and the fixed plate 3, multiple guide posts 7 arranged parallel to the screw and nut assembly 6, and guide sleeves 8 fixed on the first lifting plate 2 and the fixed plate 3 for the guide posts 7 to pass through.

[0027] The lead screw and nut assembly 6 includes a lead screw 61 and a nut seat 62. The bottom end of the lead screw 61 is rotatably connected to the base plate 1 via a bearing, and the top end of the lead screw 61 is rotatably connected to the fixed plate 3 via a bearing. The nut seat 62 is fitted onto the lead screw 61 and is fixedly integrated with the first lifting plate 2. When the lead screw 61 rotates, the nut seat 62 moves axially along the lead screw 61 because the first lifting plate 2 is limited and guided by the guide post 7. During operation, the base plate 1 is horizontal, and the lead screw 61 and the guide post 7 are vertical.

[0028] The driving component 5 drives the lead screw 61 in the lead screw and nut assembly 6, and the driving component 5 is used to drive the lead screw 61 to rotate around its own axis. The output end of the driving component 5 can be directly connected to the lead screw 61, or it can be indirectly connected to the lead screw 61 through the transmission device 9. The first lifting plate 2 is driven to move along the axial direction of the lead screw 61 when the nut seat 62 moves.

[0029] Please refer to Figure 2 The guide post 7 includes a first guide post 71 and a second guide post 72, both parallel to the lead screw 61. The first guide post 71 and the second guide post 72 are symmetrically arranged at two locations on the base plate 1 about the lead screw 61. The bottom end of the first guide post 71 is fixed to the base plate 1 and the top end is fixed to the fixed plate 3. The first guide post 71 passes through both ends of the first lifting plate 2 in the length direction. The bottom end of the second guide post 72 is fixed to the first lifting plate 2 and the top end is fixed to the second lifting plate 4. The second guide post 72 passes through the fixed plate 3. The second guide post 72 is fixedly connected to both ends of the second lifting plate 4 in the length direction. The first lifting plate 2 and the fixed plate 3 are both provided with guide sleeves 8 for the guide post 7 to pass through. The inner wall of the guide sleeve 8 slides with the side wall of the guide post 7.

[0030] Specifically, the guide post 7 includes three first guide posts 71 and three second guide posts 72; one or two first guide posts 71 are provided on the base plate 1 at two symmetrical locations about the lead screw and nut assembly 6 (for example, if one first guide post 71 is provided on the left side of the lead screw and nut assembly 6, two first guide posts 71 are provided on the right side; if two first guide posts 71 are provided on the left side of the lead screw and nut assembly 6, one first guide post 71 is provided on the right side); one or two second guide posts 72 are provided on the base plate 1 at two symmetrical locations about the lead screw and nut assembly 6 (for example, if one second guide post 72 is provided on the left side of the lead screw and nut assembly 6, two second guide posts 72 are provided on the right side; if two second guide posts 72 are provided on the left side of the lead screw and nut assembly 6, one second guide post 72 is provided on the right side).

[0031] The following three settings may occur: In scenario one, the lead screw and nut assembly 6 has two first guide posts 71 and two second guide posts 72 on the left side, and one first guide post 71 and one second guide post 72 on the right side. Scenario 2: The lead screw and nut assembly 6 has one first guide post 71 and two second guide posts 72 on the left side, and two first guide posts 71 and one second guide post 72 on the right side. Scenario 3: The lead screw and nut assembly 6 has two first guide posts 71 and one second guide post 72 on the left side, and one first guide post 71 and two second guide posts 72 on the right side. Scenario 4: The lead screw and nut assembly 6 has one first guide post 71 and one second guide post 72 on the left side, and two first guide posts 71 and two second guide posts 72 on the right side.

[0032] Case 2 and Case 3 are the two preferred configurations, in which the number of guide posts 7 at both ends of the length direction of the first lifting plate 2 is the same (three guide posts 7 in each case): one end of the length direction of the first lifting plate 2 has two first guide posts 71 and one second guide post 72, and the other end has two second guide posts 72 and one first guide post 71; in this case, the force on both sides of the screw 61 is balanced, and the structure has the best stability.

[0033] Furthermore, the two first guide posts 71 located at the same end of the first lifting plate 2 are aligned with the central axis of the first lifting plate 2 along its length (i.e., Figure 2 (The dashed line in the middle) is symmetrical; the two second guide posts 72 located at the same end of the first lifting plate 2 are symmetrical about the central axis of the length direction of the first lifting plate 2.

[0034] Please refer to Figure 3 Specifically, the transmission device 9 is located below the substrate 1, and the lead screw 61 and the drive member 5 both pass through the lower part of the substrate 1 to connect to the transmission device 9; a protective cover can also be provided below the substrate 1 to accommodate the transmission device 9.

[0035] Furthermore, the transmission device 9 can employ a transmission pulley or a transmission gear, and the drive component 5 is preferably a motor. The transmission pulley is a combination of a transmission belt and a transmission wheel. Transmission wheels are fixedly mounted on both the motor's output end and the lead screw 61. The transmission belt connects the two transmission wheels, and the motor drives the lead screw 61 to rotate via the transmission pulley after startup. The transmission gear is a combination of two gears. Gears are fixedly mounted on both the motor's output end and the lead screw 61. The two gears mesh with each other, and the motor drives the lead screw 61 to rotate via the transmission gear after startup.

[0036] Please refer to Figure 3 Specifically, when the transmission device 9 uses a transmission pulley, the base plate 1 is provided with a mechanism for tensioning the transmission belt. This mechanism includes: a slot 1a on the base plate 1, an insert plate 1b that is inserted into the slot 1a, a mounting hole 1c on the base plate 1, a strip hole 1d on the insert plate 1b, and a connector (e.g., a bolt) inserted into the strip hole 1d and the mounting hole 1c. The slot 1a is provided on the lower surface of the base plate 1, and the insert plate 1b is inserted into the slot 1a from the end of the base plate 1; please refer to... Figure 2 A window 1e is provided on the substrate 1 to accommodate the driving component 5. Most of the driving component 5 is located above the substrate 1, and the driving component 5 is fixed to the insert plate 1b through the window 1e; please refer to Figure 3 The substrate 1 has multiple mounting holes 1c around the window 1e, and the insert plate 1b has a strip hole 1d. The strip hole 1d corresponds to the mounting hole 1c one by one. The length direction of the strip hole 1d is the tension direction of the transmission belt. Connecting parts are inserted into the strip hole 1d and the mounting hole 1c. The position of the insert plate 1b can be fixed by locking the connecting parts. The position of the insert plate 1b can be adjusted by loosening the connecting parts, thereby adjusting the tension of the transmission belt.

[0037] Optionally, the transmission device 9 may also employ a combination of a rack and a gear. The rack is fixed to the output end of the drive unit 5, the gear meshes with the rack, and the gear is coaxially and fixedly connected to the lead screw 61. Correspondingly, the drive unit 5 employs a linear drive element, such as an electric cylinder. By setting a guide rail on the base plate 1 to guide the rack, such as a guide groove, the rack can only move in a straight line under the guidance of the guide groove. The electric cylinder drives the rack to move, and the rack drives the gear to rotate, thereby causing the lead screw 61 to rotate.

[0038] The six-guide-column lifting device proposed in this utility model is powered by the drive component 5, which directly drives the lead screw and nut assembly 6 (or indirectly transmits power to the lead screw and nut assembly 6 through the transmission device 9). The lead screw and nut assembly 6 drives the first lifting plate 2 to reciprocate through the relative movement between the lead screw 61 and the nut seat 62, combined with the three first guide columns 71. The first lifting plate 2 is guided by the three second guide columns 72 and drives the second lifting plate 4 to achieve the lifting movement along the lead screw and nut assembly 6.

[0039] The six-guide-column lifting device proposed in this utility model uses three guide columns 7 as the main power guide for the driving component 5 to drive the lead screw and nut assembly 6, and the other three guide columns 7 as the driven guide for the lifting device. The multiple guides increase the support surface, effectively increasing the stability of the overall structure, while simplifying the overall cost and processing difficulty. The simple structure stacking design optimizes the processing cost and difficulty. It realizes stable reciprocating motion under large loads. It is suitable for precision manufacturing fields such as mechanical automation equipment or precision instruments.

[0040] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A six-pin jacking device, characterized in that, The device includes a base plate, a first lifting plate, a fixed plate, and a second lifting plate arranged sequentially from bottom to top. It also includes a driving component, a lead screw and nut assembly, a guide post, and a guide sleeve. The driving component is fixed on the base plate and drives the lead screw and nut assembly. The first lifting plate is driven by the lead screw and nut assembly, and the top end of the lead screw and nut assembly is rotatably connected to the fixed plate. The guide post includes a first guide post and a second guide post, both of which are parallel to the lead screw and nut assembly. The bottom end of the first guide post is fixed to the base plate and the top end is fixed to the fixed plate. The bottom end of the second guide post is fixed to the first lifting plate and the top end is fixed to the second lifting plate. The second guide post passes through the fixed plate. The first lifting plate and the fixed plate are both provided with guide sleeves for the guide post to pass through. The first guide post and the second guide post are provided at two symmetrical locations on the base plate with respect to the lead screw and nut assembly. The first guide post passes through both ends of the first lifting plate along its length, and the second guide post is fixedly connected to both ends of the second lifting plate along its length.

2. The six-column jacking arrangement of claim 1, wherein, The guide post includes three first guide posts and three second guide posts; one or two first guide posts are provided at two symmetrical locations on the base plate about the lead screw and nut assembly; one or two second guide posts are provided at two symmetrical locations on the base plate about the lead screw and nut assembly.

3. The six-column jacking arrangement of claim 2, wherein, The two first guide posts located at the same end of the first lifting plate are symmetrical about the central axis of the length direction of the first lifting plate; the two second guide posts located at the same end of the first lifting plate are symmetrical about the central axis of the length direction of the first lifting plate.

4. The six-column jacking arrangement of claim 3, wherein, The number of guide posts at both ends of the first lifting plate along its length is the same.

5. The six-column jacking arrangement of claim 1, wherein, It also includes a transmission device located below the substrate, wherein the lead screw and nut assembly and the drive component both extend below the substrate and are connected to the transmission device.

6. The six-column jacking arrangement of claim 5, wherein, The driving component is a motor; the transmission device is a transmission pulley or a transmission gear.

7. The six-guide-column lifting device according to claim 6, characterized in that, The transmission device is a transmission pulley. The base plate is provided with a slot, and an insert plate is fitted in the slot. The driving component is fixed on the insert plate. The base plate is provided with a mounting hole, and the insert plate is provided with a strip hole. The strip hole and the mounting hole are used for inserting connecting components.

8. The six-column jacking arrangement of claim 5, wherein, The driving element is a linear driving element; the transmission device includes a meshing rack and a gear, the rack being adapted to move linearly under the drive of the driving element, and the gear being fixed to the lead screw and nut assembly.

9. The six-guide-column lifting device according to claim 1, characterized in that, The substrate, the first lifting plate, the fixed plate, and the second lifting plate are all rectangular plates with the same length direction.

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