High-precision lifting platform auxiliary device

Abstract

The utility model discloses a high-precision lifting platform auxiliary device, belongs to the technical field of lifting platforms, and solves the problem that an oil distribution shaft of a central rotary joint is difficult to lift when being processed in the prior art. The auxiliary device comprises a lower mounting plate and an upper mounting plate, connecting rods which are symmetrically arranged up and down are arranged at one end of the upper mounting plate and one end of the lower mounting plate correspondingly, and rolling assemblies which are symmetrically arranged up and down are slidably arranged at the other end of the upper mounting plate and the other end of the lower mounting plate correspondingly; two shear fork connecting rod mechanisms are hinged between the rolling assemblies and the connecting rods on the upper side and the lower side, a positive tooth connecting shaft and a negative tooth connecting shaft are arranged at the two connecting positions of the middles of the two shear fork connecting rod mechanisms respectively, and positive and negative tooth lifting screws used for driving the shear fork connecting rod mechanisms to ascend and descend are arranged on the positive tooth connecting shaft and the negative tooth connecting shaft. According to the high-precision lifting platform auxiliary device, the labor intensity of workers is relieved, damage such as bumping damage, scratching damage and pressing damage is effectively avoided, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of lifting platform technology, and in particular to a high-precision lifting platform auxiliary device. Background Technology

[0002] The manufacturing process of hydraulic components differs fundamentally from that of traditional structural components. Structural component manufacturing primarily focuses on meeting structural assembly, strength, flexible rotation, and customer requirements. However, hydraulic component manufacturing, in addition to the machining requirements of structural components, places higher demands on dimensional accuracy and surface roughness. For example, while a bearing seat in a typical structural component only needs Ra1.6 to meet design requirements, the cylinder side of a hydraulic component requires Ra0.4 or higher. To meet the high-precision machining requirements of hydraulic components, auxiliary devices are often necessary.

[0003] The oil distribution shaft weighs as much as 70 kg. When machining the side holes of the oil distribution shaft of the central rotary joint, the auxiliary device usually used is a crane. However, the crane cannot achieve precise positioning during the hoisting process, and it cannot land flexibly when lowering it. This often results in damage to the outer circle, causing scrap. In addition, since conventional advanced CNC machine tools are equipped with safety protection devices, there are certain blind spots during the hoisting process, making it impossible to place and clamp them in a natural vertical state. They are often clamped under tilt or pressure, requiring employees to expend a lot of effort. This increases the labor intensity of employees and the probability of damage. Inaccurate positioning of the outer circle side hole can cause overcutting of the guide angle, resulting in scratches and edge cutting when installing star rings or O-rings, leading to oil leakage and scrap. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a high-precision lifting platform auxiliary device that addresses the above-mentioned shortcomings of the existing technology, thereby reducing the labor intensity of employees and effectively avoiding injuries such as bumps, scratches, and crushing, thus improving production efficiency. It is characterized by its ease of use and strong practicality.

[0005] The technical solution adopted by this utility model is: a high-precision lifting platform auxiliary device, including a lower mounting plate and an upper mounting plate. One end of the upper mounting plate and the lower mounting plate are respectively provided with connecting rods arranged symmetrically in the upper and lower directions. The other end of the upper mounting plate and the lower mounting plate are respectively provided with rolling components arranged symmetrically in the upper and lower directions. Two scissor linkage mechanisms are hinged between the rolling components and the connecting rods on the upper and lower sides. Two connection points between the two scissor linkage mechanisms are respectively provided with a positive thread connecting shaft and a negative thread connecting shaft. The positive thread connecting shaft and the negative thread connecting shaft are provided with positive and negative thread lifting screws for driving the scissor linkage mechanism to lift.

[0006] As a further improvement, the connecting rod is provided with multiple connecting holes, and connecting bolts are provided in the connecting holes. The connecting bolts pass through the connecting holes and are threadedly connected to the upper mounting plate and the lower mounting plate.

[0007] Furthermore, the rolling assembly includes a rotating shaft, a roller, and a spacer. The roller is rotatably mounted on the rotating shaft, and the spacer is sleeved on one end of the rotating shaft. The rotating shaft is rotatably connected to both sides of the scissor lift mechanism.

[0008] Furthermore, the scissor linkage mechanism includes two outer hinge plates and two inner hinge plates. One end of the two outer hinge plates is hinged to each other, and the other end is rotatably connected to the connecting rods on the upper and lower sides respectively. One end of the inner hinge plates is hinged to each other, and the other end is rotatably connected to the rolling components on the upper and lower sides respectively.

[0009] Furthermore, the outer hinge plates and inner hinge plates on the upper and lower sides are arranged in a cross pattern, and a positioning pin is provided at the intersection of the outer hinge plates and the inner hinge plates.

[0010] Furthermore, both the lower mounting plate and the upper mounting plate are provided with U-shaped limiting plates, and the rolling component is arranged inside the U-shaped limiting plates.

[0011] Furthermore, the positive and negative thread lifting screw is provided with a positive thread section and a negative thread section, which are respectively arranged on the positive thread connecting shaft and the negative thread connecting shaft.

[0012] Furthermore, a handwheel is provided on one end of the forward and reverse thread lifting screw.

[0013] Beneficial effects

[0014] Compared with the prior art, this utility model has the following advantages:

[0015] This utility model discloses a high-precision lifting platform auxiliary device. It utilizes a forward and reverse threaded lifting screw to drive a scissor linkage mechanism for lifting, thereby lifting the upper mounting plate. The lifting structure is robust and can support a maximum weight of 150 kg. The lifting accuracy is controllable within 0.2 mm, ensuring that the center hole of the processed product is aligned with the tailstock tip, effectively preventing workpiece damage and product scrap due to misalignment between the tailstock tip and the product center. By setting forward and reverse threaded sections on the forward and reverse threaded lifting screw, the lifting space is maximized, and even after screw wear, it remains stable without loosening or wobbling. The forward and reverse threaded structures move relative to each other, interlocking to ensure precise positioning. During use, rotating the handwheel drives the forward and reverse threaded lifting screw, which in turn drives the forward and reverse threaded connecting shafts to move in opposite directions, thereby causing the outer and inner hinge plates to retract inward, lifting the oil distribution shaft on the upper mounting plate. The entire process is smooth and fast, with high lifting accuracy, easy control, and is convenient to use and widely applicable. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 3 This is an enlarged schematic diagram of the connecting rod structure in this utility model;

[0019] Figure 4 This is an enlarged cross-sectional view of the rolling component in this utility model.

[0020] Among them: 1-lower mounting plate, 2-rolling assembly, 3-scissor linkage mechanism, 4-upper mounting plate, 5-positive thread connecting shaft, 6-negative thread connecting shaft, 7-positive and negative thread lifting screw, 8-positioning pin, 9-connecting rod, 10-connecting bolt, 11-handwheel, 12-negative thread section, 13-positive thread section, 14-U-shaped limit plate, 15-connecting hole, 21-roller, 22-rotating shaft, 23-spacer, 31-outer hinge plate, 32-inner hinge plate. Detailed Implementation

[0021] The present invention will be further described below with reference to specific embodiments shown in the accompanying drawings.

[0022] See Figure 1-4As shown, this utility model discloses a high-precision lifting platform auxiliary device, comprising a lower mounting plate 1 and an upper mounting plate 4. Connecting rods 9 are symmetrically arranged vertically on one end of the upper mounting plate 4 and the lower mounting plate 1, respectively. Rolling components 2 are symmetrically arranged vertically on the other end of the upper mounting plate 4 and the lower mounting plate 1, respectively. Two scissor linkage mechanisms 3 are hinged between the upper and lower rolling components 2 and the connecting rods 9. Two connecting points between the two scissor linkage mechanisms 3 are respectively provided with a positive thread connecting shaft 5 and a negative thread connecting shaft 6. Positive and negative thread lifting screws 7 are provided on the positive and negative thread connecting shafts 5 and 6 for driving the scissor linkage mechanism 3 to rise and fall. By using the positive and negative thread lifting screws 7 to drive the scissor linkage mechanism 3 to rise and fall, the upper mounting plate 4 is driven to rise and fall. The lifting structure is robust and can support a maximum weight of 150 kg. The lifting accuracy can be controlled within 0.2 mm, ensuring the quality of the processed products. The center hole is aligned with the tailstock tip, effectively preventing the tailstock tip from being at the same height as the product center, which could damage the workpiece and cause product scrap. By setting a positive thread section 13 and a negative thread section 12 on the positive and negative thread lifting screw 7, the lifting space is maximized. On the other hand, the screw will not loosen or wobble after wear, remaining stable. The positive and negative thread structures move relative to each other, interlocking to ensure accurate positioning. During use, the oil distribution shaft is placed on the upper mounting plate 4. By turning the handwheel 11, the positive and negative thread lifting screw 7 is driven. The positive and negative thread lifting screw 7 drives the positive thread connecting shaft 5 and the negative thread connecting shaft 6 to move in opposite directions, thereby causing the outer hinge plate 31 and the inner hinge plate 32 to retract inward, thus lifting the oil distribution shaft on the upper mounting plate 4. The entire process smoothly and quickly lifts the oil distribution shaft to the required clamping height, with high lifting accuracy and easy control.

[0023] Specifically, the connecting rod 9 has multiple connecting holes 15, and connecting bolts 10 are provided in the connecting holes 15. The connecting bolts 10 pass through the connecting holes 15 and are threadedly connected to the upper mounting plate 4 and the lower mounting plate 1. The connecting rod 9 is installed and fixed on the upper mounting plate 4 and the lower mounting plate 1 by means of the connecting bolts 10. It adopts a detachable method, which is convenient for installation and disassembly.

[0024] Preferably, the rolling assembly 2 includes a rotating shaft 22, a roller 21 and a spacer 23. The roller 21 is rotatably mounted on the rotating shaft 22, and the spacer 23 is sleeved on one end of the rotating shaft 22. The rotating shaft 22 is rotatably connected to both sides of the scissor linkage mechanism 3. When the rotating shaft 22 of the rolling assembly 2 rotates, the wear is reduced by adding the roller 21, thereby ensuring that the device can operate stably for a long time.

[0025] Furthermore, the scissor linkage mechanism 3 includes two outer hinge plates 31 and two inner hinge plates 32. One end of the two outer hinge plates 31 is hinged to each other, and the other end is rotatably connected to the connecting rods 9 on the upper and lower sides respectively. One end of the inner hinge plates 32 is hinged to each other, and the other end is rotatably connected to the rolling components 2 on the upper and lower sides respectively. The two two-layer structures ensure that the lifting adjustment space of the lifting platform is 87mm in height and 210mm in maximum lifting height, which meets the lifting height requirement of 200mm for the four-axis rotation center.

[0026] Furthermore, the outer hinge plate 31 and the inner hinge plate 32 on the upper and lower sides are arranged in a cross pattern, and a positioning pin 8 is provided at the intersection of the outer hinge plate 31 and the inner hinge plate 32, which serves as a bridge connection between the inner hinge plate 32 and the outer hinge plate 31 to ensure stable lifting and accurate positioning height.

[0027] Furthermore, both the lower mounting plate 1 and the upper mounting plate 4 are provided with U-shaped limiting plates 14. The rolling component 2 is arranged in the U-shaped limiting plate 14, which serves to limit the rolling component 2 to move flexibly within a certain space, and also serves to prevent the rolling component 2 from falling off and to fix the upper and lower limits.

[0028] Furthermore, the positive and negative thread lifting screw 7 is provided with a positive thread section 13 and a negative thread section 12, which are respectively arranged on the positive thread connecting shaft 5 and the negative thread connecting shaft 6.

[0029] Furthermore, a handwheel 11 is provided on one end of the forward and reverse thread lifting screw 7 to facilitate rotation of the forward and reverse thread lifting screw 7.

[0030] In this embodiment, a high-precision lifting platform auxiliary device operates by rotating the handwheel 11, which drives the forward and reverse thread lifting screw 7. The forward and reverse thread lifting screw 7 drives the forward thread connecting shaft 5 and the reverse thread connecting shaft 6 to move in opposite directions, thereby causing the outer hinge plate 31 and the inner hinge plate 32 to retract inward, thus lifting the oil distribution shaft on the upper mounting plate 4. The entire process is smooth and fast, with high lifting accuracy and easy control. This high-precision lifting platform auxiliary device utilizes the forward and reverse thread lifting screw 7 to drive the scissor linkage mechanism 3 to lift, thereby driving the upper mounting plate 4 to lift. The lifting structure is robust. By setting forward thread sections 13 and reverse thread sections 12 on the forward and reverse thread lifting screw 7, the lower lifting space is maximized, and even when the screw wears, it will not loosen or wobble, remaining stable. The forward and reverse thread structures move relative to each other, providing an interlocking effect and ensuring accurate positioning. It is convenient to use and has a wide range of applications.

[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present utility model. These modifications and improvements will not affect the effectiveness of the present utility model or the practicality of the patent.

Claims

1. A high-precision lifting platform auxiliary device, characterized in that, The device includes a lower mounting plate (1) and an upper mounting plate (4). One end of the upper mounting plate (4) and the lower mounting plate (1) is provided with connecting rods (9) arranged symmetrically in the upper and lower directions. The other end of the upper mounting plate (4) and the lower mounting plate (1) is provided with rolling components (2) arranged symmetrically in the upper and lower directions. Two scissor linkage mechanisms (3) are hinged between the rolling components (2) and the connecting rods (9) on the upper and lower sides. Two connecting points between the two scissor linkage mechanisms (3) are provided with a positive thread connecting shaft (5) and a negative thread connecting shaft (6). The positive thread connecting shaft (5) and the negative thread connecting shaft (6) are provided with positive and negative thread lifting screws (7) for driving the scissor linkage mechanism (3) to rise and fall.

2. The high-precision lifting platform auxiliary device according to claim 1, characterized in that, The connecting rod (9) has multiple connecting holes (15), and the connecting holes (15) are provided with connecting bolts (10). The connecting bolts (10) pass through the connecting holes (15) and are threadedly connected to the upper mounting plate (4) and the lower mounting plate (1).

3. The high-precision lifting platform auxiliary device according to claim 1, characterized in that, The rolling assembly (2) includes a rotating shaft (22), a roller (21) and a spacer (23). The roller (21) is rotatably mounted on the rotating shaft (22), and the spacer (23) is sleeved on one end of the rotating shaft (22). The rotating shaft (22) is rotatably connected to both sides of the scissor linkage mechanism (3).

4. The high-precision lifting platform auxiliary device according to claim 1, characterized in that, The scissor linkage mechanism (3) includes two outer hinge plates (31) and two inner hinge plates (32). The two outer hinge plates (31) are hinged to each other at one end and rotatably connected to the connecting rods (9) on the upper and lower sides respectively at the other end. The inner hinge plates (32) are hinged to each other at one end and rotatably connected to the rolling components (2) on the upper and lower sides respectively at the other end.

5. The high-precision lifting platform auxiliary device according to claim 4, characterized in that, The outer hinge plate (31) and inner hinge plate (32) on the upper and lower sides are arranged in a cross manner, and a positioning pin (8) is provided at the intersection of the outer hinge plate (31) and inner hinge plate (32).

6. The high-precision lifting platform auxiliary device according to claim 1, characterized in that, Both the lower mounting plate (1) and the upper mounting plate (4) are provided with U-shaped limiting plates (14), and the rolling component (2) is arranged inside the U-shaped limiting plate (14).

7. The high-precision lifting platform auxiliary device according to claim 1, characterized in that, The positive and negative thread lifting screw (7) is provided with a positive thread section (13) and a negative thread section (12), and the positive thread section (13) and the negative thread section (12) are respectively arranged on the positive thread connecting shaft (5) and the negative thread connecting shaft (6).

8. The high-precision lifting platform auxiliary device according to claim 1, characterized in that, A handwheel (11) is provided on one end of the positive and negative thread lifting screw (7).

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