A multi-section vertical lift mechanism for a truss and a truss

Abstract

The utility model discloses a kind of multi-section vertical lifting mechanism and truss for truss, including vertically arranged first lifting arm, first lifting arm outer fixed with vertically arranged rack one, rack one is engaged with the output shaft of drive motor one for driving first lifting arm lifting, first lifting arm inner sliding sleeve is equipped with second lifting arm, the top of second lifting arm is pulled by chain, the other end of chain and drive motor one are installed on same positioning plate, positioning plate is also fixed with gear for guiding chain, while chain pulls second lifting arm sliding lifting relative to first lifting arm, the end of second lifting arm is used for installing mechanical gripper. Vertical lifting truss effectively solves the problem that existing technology adopts ordinary truss robot hand in machine tool product feeding and discharging tool, and the height space of workshop is not enough, so as to realize the reduction of total height of vertical arm on truss, and reduce the occupation of height space of workshop.

Description

Technical Field

[0001] This utility model relates to the field of truss technology, and in particular to a multi-segment vertical lifting mechanism for trusses and a truss. Background Technology

[0002] Existing machine tool loading and unloading methods generally employ manual handling, gantry crane handling, or seven-axis robots. Manual handling, using gantry crane assistance or direct human transport, involves numerous manual operations, requires careful attention to detail, demands high skill levels from personnel, suffers from low installation efficiency, and poses significant safety hazards. Seven-axis robots utilize a seventh-axis ground rail system, with the robot mounted on the seventh axis and moving along it to transport products. This method occupies a large amount of factory floor space, carries significant safety risks (usually requiring safety barriers), and makes system equipment and machine tool maintenance inconvenient. A malfunction in any device within the system necessitates system shutdown and intervention, leading to a severe drop in production efficiency. In contrast, conventional gantry robots avoid these problems, improving efficiency. They can independently handle any device within the system, leaving ample floor space for human operation, resulting in a flexible and highly efficient system. However, the vertical lifting arm of a conventional gantry robot has a very high working height, requiring sufficient space in the vertical direction of the factory building. Some factories cannot install conventional gantry robots because the gantry space was not planned in the early stage or the factory roof is occupied by other decorations or pipeline supports. When factories want to carry out machine tool automation transformation, they find that the methods are limited or they are helpless, or the factory is renovated and expanded, resulting in increased costs and extended cycle. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model proposes a multi-segment vertical lifting mechanism and truss for trusses. This multi-segment vertical lifting truss effectively solves the problem in the prior art where the loading and unloading tools for machine tool products use ordinary truss robots due to insufficient factory height space, thereby reducing the total height of the vertical arm on the truss and reducing the occupation of factory height space.

[0004] A multi-segment vertical lifting mechanism for trusses includes a vertically arranged primary lifting arm. A vertically arranged rack is fixed to the outside of the primary lifting arm. The rack is meshed with the output shaft of a drive motor for driving the primary lifting arm to rise and fall. A secondary lifting arm is slidably sleeved inside the primary lifting arm. The top of the secondary lifting arm is connected by a chain. The other end of the chain and the drive motor are mounted on the same positioning plate. A gear that guides the chain is also fixed on the positioning plate. While the drive motor drives the primary lifting arm to rise and fall, the chain pulls the secondary lifting arm to slide and rise relative to the primary lifting arm. The end of the secondary lifting arm is used to install a mechanical gripper.

[0005] As a preferred embodiment of the above technical solution, the positioning plate is also equipped with a vertical lifting caliper for emergency braking of the first-stage lifting arm.

[0006] As a preferred embodiment of the above technical solution, a fall prevention block is fixed on one side of the top of the first-stage lifting arm, directly opposite the positioning plate.

[0007] As a preferred embodiment of the above technical solution, the secondary lifting arm and the primary lifting arm are guided to move by a linear guide rail module.

[0008] As a preferred embodiment of the above technical solution, a tank chain is also installed between the secondary lifting arm and the primary lifting arm.

[0009] A truss employing the multi-segment vertical lifting mechanism as described in any one of the preceding claims, further comprising a parallel sliding mechanism, a crossbeam, and columns for supporting the crossbeam.

[0010] As a preferred embodiment of the above technical solution, the parallel sliding mechanism includes a second drive motor, which is fixed to the positioning plate. The output shaft of the second drive motor is meshed with a second rack on the crossbeam. The positioning plate is equipped with multiple sets of limiting roller assemblies, which limit the positioning plate to roll and be confined on the slide rail of the crossbeam.

[0011] As a preferred embodiment of the above technical solution, a felt gear is installed on the positioning plate adjacent to the output shafts of the first and second drive motors. The felt gear meshes with a rack at a corresponding position. The positioning plate is also fixed with a lubricating oil pump and a lubricating oil distribution block assembly for supplying oil to the felt gear.

[0012] As a preferred embodiment of the above technical solution, the crossbeam is simultaneously provided with one or more sets of the multi-segment vertical lifting mechanism and translation sliding mechanism.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. Space saving: With the same lifting height, the length of the vertical arm is reduced by half, thus reducing the height requirement of the factory.

[0015] 2. Good operability: A truss vertical lifting arm saves height space and replaces the traditional manual or seven-axis robot. There is no protective fence around the equipment and it can avoid the equipment operation surface, which provides convenience for the independent operation of the equipment. No professional personnel are required to operate it, which lowers the threshold for equipment and personnel to use.

[0016] 3. Good versatility: This invention is applicable to machine tool processing lines and can be used for processing the same type of product as well as different products. Because the truss is in the air, it does not obstruct the operation of the equipment, and it is convenient to change the processed products without wasting material and manpower. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a multi-segment vertical lifting mechanism.

[0018] Figure 2 for Figure 1 A sectional view.

[0019] Figure 3 This is a schematic diagram of the installation structure of the vertical lifting caliper on the positioning plate.

[0020] Figure 4 This is a schematic diagram of the assembly structure of a multi-segment vertical lifting mechanism and a parallel sliding mechanism.

[0021] Figure 5 This is a schematic diagram of the truss structure.

[0022] The attached diagram is labeled as follows: 1-First-stage lifting arm, 2-Rack I, 3-Drive motor I, 4-Second-stage lifting arm, 5-Chain, 6-Positioning plate, 7-Gear, 8-Vertical lifting caliper, 9-Anti-fall stop block, 10-Linear guide rail module, 11-Tank chain, 12-Crossbeam, 13-Column, 14-Drive motor II, 15-Rack II, 16-Limit roller assembly, 17-Slide rail, 18-Felt gear, 19-Lubricating oil pump, 20-Lubricating oil distributor assembly. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0024] like Figures 1 to 3 The multi-segment vertical lifting mechanism for trusses shown includes a vertically arranged primary lifting arm 1. A vertically arranged rack 2 is fixed to the outside of the primary lifting arm 1. The rack 2 is meshed with the output shaft of a drive motor 3 for driving the primary lifting arm 1 to lift. A secondary lifting arm 4 is slidably sleeved inside the primary lifting arm 1. The top of the secondary lifting arm 4 is connected by a chain 5. The other end of the chain 5 and the drive motor 3 are mounted on the same positioning plate 6. A gear 7 is also fixed on the positioning plate 6 to guide the chain 5. While the drive motor 3 drives the primary lifting arm 1 to lift, the chain 5 pulls the secondary lifting arm 4 to slide and lift relative to the primary lifting arm 1. The end of the secondary lifting arm 4 is used to install a mechanical gripper.

[0025] In this embodiment, the positioning plate 6 is also equipped with a vertical lifting caliper 8 for emergency braking of the first-stage lifting arm 1.

[0026] In this embodiment, a fall arrestor block 9 is fixed to one side of the top of the primary lifting arm 1, directly opposite the positioning plate 6.

[0027] In this embodiment, the secondary lifting arm 4 and the primary lifting arm 1 are guided to move by a linear guide rail module 10.

[0028] In this embodiment, a tank chain 11 is also installed between the secondary lifting arm 4 and the primary lifting arm 1.

[0029] like Figure 4 , Figure 5 The truss shown employs the multi-segment vertical lifting mechanism as described in any one of the preceding claims, and further includes a parallel sliding mechanism, a crossbeam 12, and a column 13 for supporting the crossbeam 12.

[0030] In this embodiment, the parallel sliding mechanism includes a second drive motor 14, which is fixed on the positioning plate 6. The output shaft of the second drive motor 14 is meshed with a second rack 15 on the crossbeam 12. The positioning plate 6 is equipped with multiple sets of limiting roller assemblies 16, which limit the positioning plate 6 to roll and limit it on the slide rail 17 of the crossbeam 12.

[0031] Specifically, the crossbeam 12 and column 13 are conventional technologies in this field. The column 13 can be specially designed according to the truss length and load size to ensure that it can meet the necessary strength to support the crossbeam 12 and other components. The mounting plate and adjusting screws that connect and fix the column 13 to the ground are used to ensure that the tooling is firmly locked to the ground, providing a support mounting surface for each mechanism component, and can also adjust the height and level of the crossbeam 12. The crossbeam 12 needs to be designed according to the number and length requirements of the loading and unloading equipment. Crossbeams 12 of different lengths need to be checked against the load and number of their corresponding columns 13. The translation and sliding mechanism also needs to be appropriately enlarged or reduced in size according to the load size and stroke length, and the corresponding drive motor 14 also needs to be recalibrated. The first-stage lifting arm 1 is a special structure protected by patent, and its size also needs to be reasonably changed according to the size and load of the handling gripper, and the corresponding drive motor 3 also needs to be recalibrated.

[0032] In this embodiment, a felt gear 18 is installed on the positioning plate 6 adjacent to the output shaft of the first drive motor 3 and the second drive motor 14. The felt gear 18 is meshed with a rack at a corresponding position. The positioning plate 6 is also fixed with a lubricating oil pump 19 and a lubricating oil distribution block assembly 20 for supplying oil to the felt gear 18.

[0033] In this embodiment, the crossbeam 12 is simultaneously provided with one or more sets of the multi-segment vertical lifting mechanism and translation sliding mechanism.

[0034] When the program issues a product loading / unloading request, the vertical lifting mechanism, driven by drive motor 14, moves horizontally to the product loading / unloading position. Then, the primary lifting arm 1 and secondary lifting arm 4 of the vertical lifting mechanism move up and down together under the action of drive motor 3 and chain 5. The secondary lifting arm 4 moves up and down at twice the speed. After the secondary lifting arm 4 reaches the position specified by the program, the robotic gripper installed at the end of the secondary lifting arm 4 completes the product loading / unloading. Next, the program instructs drive motor 3 to drive the primary lifting arm 1 and secondary lifting arm 4 up and down. Finally, the vertical lifting mechanism, driven by drive motor 14, moves again to the next product loading / unloading position, and the cycle repeats. The above action program can be flexibly edited according to different products and process flows to ensure the versatility of the loading / unloading fixture.

[0035] This application innovates the design of the vertical lifting mechanism of the truss system by changing the vertical lifting arm from a traditional single arm to two arms. In the traditional single-arm system, the lifting arm is directly driven by a motor. The motor drives the vertical lifting arm to lift the required height. When the required lifting height is high, the top of the vertical lifting arm is high off the ground. If the factory space has limited height, this lifting arm is difficult to meet the height restriction conditions. The two vertical lifting arms are driven by motor 3, which directly drives the primary lifting arm 1. Simultaneously, the primary lifting arm 1 pulls the secondary lifting arm 4, achieving the same lifting motion. The secondary lifting arm 4 is installed in an overlapping manner with the primary lifting arm 1, saving installation space. Furthermore, the lifting height of the secondary lifting arm 4 relative to the ground can be doubled. This means that for the same lifting height requirement, the primary lifting arm 1, driven by motor 3, only needs to travel half the distance, effectively shortening the height of the primary lifting arm 1. The secondary lifting arm 4 is installed inside the primary lifting arm 1, concealed within it. This staggered installation further reduces the total height of the two vertical arms, thus reducing the overall height of the vertical arms on the truss and minimizing the impact on factory height. This system not only reduces the limitations on factory height but also improves the ease of operation for personnel, enabling ordinary employees to perform the processing of machine tool parts, simplifying the machine tool loading and unloading process, and increasing production efficiency.

[0036] 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. A multi-segment vertical lifting mechanism for trusses, characterized in that: The device includes a vertically arranged primary lifting arm, with a vertically arranged rack fixed to the outside of the primary lifting arm. The rack is meshed with the output shaft of a drive motor for driving the primary lifting arm to rise and fall. A secondary lifting arm is slidably sleeved inside the primary lifting arm. The top of the secondary lifting arm is connected by a chain. The other end of the chain and the drive motor are mounted on the same positioning plate. The positioning plate is also fixed with gears that guide the chain. While the drive motor drives the primary lifting arm to rise and fall, the chain pulls the secondary lifting arm to slide and rise relative to the primary lifting arm. The end of the secondary lifting arm is used to install a mechanical gripper.

2. The multi-segment vertical lifting mechanism for trusses according to claim 1, characterized in that: The positioning plate is also equipped with a vertical lifting caliper for emergency braking of the first-stage lifting arm.

3. A multi-segment vertical lifting mechanism for trusses according to claim 1, characterized in that: A fall arrestor block is fixed to one side of the top of the primary lifting arm, directly opposite the positioning plate.

4. A multi-segment vertical lifting mechanism for trusses according to claim 1, characterized in that: The secondary lifting arm and the primary lifting arm are guided to move by a linear guide rail module.

5. A multi-segment vertical lifting mechanism for trusses according to claim 1, characterized in that: A tank chain is also installed between the secondary lifting arm and the primary lifting arm.

6. A truss, characterized in that: The multi-segment vertical lifting mechanism according to any one of claims 1-5 further includes a parallel sliding mechanism, a crossbeam, and a column for supporting the crossbeam.

7. A truss according to claim 6, characterized in that: The parallel sliding mechanism includes a second drive motor, which is fixed to the positioning plate. The output shaft of the second drive motor is meshed with a rack on the crossbeam. The positioning plate is equipped with multiple sets of limiting roller assemblies, which limit the positioning plate to roll and be confined on the slide rail of the crossbeam.

8. A truss according to claim 7, characterized in that: Felt gears are mounted on the positioning plate near the output shafts of the first and second drive motors. The felt gears mesh with the racks at corresponding positions. A lubricating oil pump and a lubricating oil distribution block assembly for supplying oil to the felt gears are also fixed on the positioning plate.

9. A truss according to claim 6, characterized in that: The crossbeam is simultaneously equipped with one or more sets of the multi-segment vertical lifting mechanism and translation sliding mechanism.

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