A push-pull structure of a double-layer shelf for corner board processing

Abstract

The utility model discloses a kind of push-pull structure of double-layer shelf for corner plate processing, belong to workpiece processing auxiliary equipment technical field, it includes support frame, lifting mechanism and push-pull mechanism, two-stage push-pull mechanism by driving motor and electric cylinder cooperation work are set, the wide-range fast movement of shelf is realized by driving motor, again utilize electric cylinder to carry out small range, high-precision fine adjustment push, improve the accuracy of corner plate alignment processing station, effectively ensure processing quality and product consistency, solve the problem of low positioning accuracy of prior art, realize the automated accurate positioning of shelf, with the beneficial effects of flexible adjustment, high production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment for workpiece processing, and in particular to a push-pull structure for a double-layer shelf for corner panel processing. Background Technology

[0002] In the production and processing of corner plates for LNG ships, it is usually necessary to transport the special racks carrying the corner plates to be processed from the cryogenic storage area and accurately position them at the welding processing station.

[0003] In existing technologies, this process initially relied primarily on manual operation, with workers manually pushing, pulling, and lifting specialized racks loaded with corner panels. Since the corner panels are only 0.7mm to 1.5mm thick, and a single rack can bear a weight of over 300kg, this manual operation method is not only labor-intensive and inefficient, but also presents two major problems: First, the positioning accuracy depends entirely on the operator's experience and skill, while LNG ship liner welding requires a positioning accuracy of ±0.5mm. Manual positioning makes it difficult to guarantee the stability and consistency of processing quality, easily leading to subsequent welding leakage risks. Second, manual handling easily causes the liner panels to be bumped and deformed, resulting in the scrapping of valuable Invar steel materials, while also posing personnel safety hazards.

[0004] To improve this situation, the industry has begun to introduce automated auxiliary equipment, such as specialized lifting platforms capable of vertically raising and lowering shelves. These devices use servo motors to control lifting precision, which to some extent solves the problem of height adaptability at different welding stations, reduces manual labor in the vertical direction, and avoids deformation of the lining plates during vertical handling. However, these devices typically lack horizontal conveying capabilities. After the shelf is raised to the designated height, it still needs to be manually pushed horizontally into the welding station. This process not only carries the risk of positioning deviation but also may result in uneven manual pushing force causing the lining plate to not fit tightly against the station's reference surface, ultimately affecting welding quality and failing to achieve fully automated positioning throughout the Invar steel lining plate processing process. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a push-pull structure for a double-layer shelf for corner panel processing, aiming to improve the problems of inflexible shelf positioning, low precision, and low degree of automation in the existing technology during corner panel processing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a push-pull structure for a double-layer shelf for corner panel processing, comprising: a support frame, a lifting mechanism disposed on the support frame, and a push-pull mechanism disposed on the lifting mechanism; the lifting mechanism includes a hanging platform, and the push-pull mechanism includes a slide rail and a slide table that can slide on the slide rail; It also includes a coarse adjustment drive unit for driving the slide table to perform a first horizontal displacement, and a fine adjustment drive unit for driving the workpiece on the slide table to perform a second horizontal displacement. The coarse adjustment drive unit includes a drive motor, a second sprocket connected to the drive motor, and a transmission column connected to the second sprocket via a second chain, the transmission column being connected to the slide table; the fine adjustment drive unit includes an electric cylinder fixed on the slide table and a pusher connected to the output end of the electric cylinder.

[0007] Preferably, the lifting mechanism includes a bidirectional motor, an output shaft connected to the bidirectional motor, a first sprocket driven by the output shaft, and a first chain driven by the first sprocket, with the platform fixedly connected to the first chain.

[0008] Preferably, the output shaft is arranged horizontally, with the first sprocket fixedly connected to both ends to achieve synchronous and smooth lifting.

[0009] Preferably, the support frame is provided with a vertical guide rail for the lifting platform to move up and down along it, in order to improve the guidance and stability of the lifting process.

[0010] Preferably, the lifting mechanism further includes a hanging plate and a hanging bracket. The hanging plate is fixedly installed at the bottom of the lifting platform, and the hanging bracket is connected below the hanging plate to directly support the shelf.

[0011] Preferably, the push-pull mechanism further includes a side frame, on which the drive motor and the slide rail are both mounted and fixed, and the side frame is fixedly mounted on the lifting platform.

[0012] Preferably, the transmission column is a rotatable screw, and the slide is provided with a nut block that is threadedly engaged with the screw to achieve efficient and stable transmission conversion.

[0013] This utility model has the following beneficial effects: 1. This utility model is equipped with a two-stage push-pull mechanism that works in conjunction with a drive motor and an electric cylinder. The drive motor enables the shelf to move rapidly over a wide range, while the electric cylinder is used for fine-tuning and pushing with high precision over a small range. This improves the accuracy of aligning the corner panel with the processing station and effectively ensures the processing quality and product consistency.

[0014] 2. In this utility model, by setting independent lifting and pushing mechanisms, this device can realize the free adjustment of the shelf in both vertical and horizontal dimensions, and can flexibly send the shelf to any preset processing height and position, thereby meeting the diversified needs of different specifications of workpieces and different types of processing equipment, and has a wide range of applications. Attached Figure Description

[0015] Figure 1 This is a perspective view of a push-pull structure for a double-layer shelf used for corner panel processing, as proposed in this utility model. Figure 2 This is a schematic diagram of the lifting mechanism of a push-pull structure for a double-layer shelf used for corner panel processing, as proposed in this utility model. Figure 3 This is a schematic diagram of the push-pull mechanism of a double-layer shelf for corner panel processing proposed in this utility model.

[0016] Legend: 1. Support frame; 2. Lifting mechanism; 201. Bidirectional motor; 202. Output shaft; 203. First sprocket; 204. First chain; 205. Lifting platform; 206. Lifting plate; 207. Lifting bracket; 3. Push-pull mechanism; 301. Side frame; 302. Drive motor; 303. Second sprocket; 304. Second chain; 305. Transmission column; 306. Slide table; 307. Electric cylinder; 308. Push table; 309. Slide rail. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Reference Figures 1-3 The present invention provides an embodiment of a push-pull structure for a double-layer shelf for corner panel processing, comprising a support frame 1, a lifting mechanism 2 disposed on the support frame 1, and a push-pull mechanism 3 disposed on the lifting mechanism 2; The support frame 1 provides a stable mounting base for the entire equipment. The lifting mechanism 2 includes a platform 205. A guide rail is fixedly installed on the support frame 1 along the vertical direction. The platform 205 is slidably connected to the guide rail through a slider to achieve lifting and lowering along the vertical direction of the support frame 1. The specific structure of the lifting mechanism 2 includes a bidirectional motor 201, an output shaft 202, a first sprocket 203, and a first chain 204. The bidirectional motor 201 is fixedly installed on the upper part of the support frame 1 to provide controllable lifting power for the entire lifting mechanism 2. The power output end of the bidirectional motor 201 is fixedly connected to one end of the output shaft 202. The output shaft 202 is a long shaft that runs horizontally through the shaft, and the first sprocket 203 is fixedly connected to both ends of the shaft. The two first chains 204 mesh with the two first sprockets 203 respectively and are arranged along the vertical direction of the support frame 1. The two sides of the platform 205 are fixedly connected to the two first chains 204 respectively. This double chain transmission structure ensures the stability and synchronization of the platform 205 during the lifting process. To support the shelving, the lifting mechanism 2 also includes a hanging plate 206 and a hanging bracket 207. The hanging plate 206 is a horizontally arranged plate that is fixed to the bottom of the hanging platform 205 by bolts. The hanging bracket 207 is suspended and connected below the hanging plate 206 to directly support the corner panel shelving to be processed. The push-pull mechanism 3 is fixedly installed on the platform 205 and rises and falls synchronously with the platform 205. The push-pull mechanism 3 includes a coarse adjustment drive unit for realizing a large range of horizontal movement and a fine adjustment drive unit for realizing a small range of precise movement. The push-pull mechanism 3 also includes a side frame 301, which is fixedly installed on the upper surface of the platform 205 for integrating and installing the various components of the push-pull mechanism 3. The coarse adjustment drive unit includes a drive motor 302, a second sprocket 303, a second chain 304, a transmission column 305, and a slide 306 that cooperates with the transmission column 305. A slide rail 309 is fixedly mounted on the slide 306 and is slidably connected to the side frame 301. The drive motor 302 is fixedly mounted on one end of the side frame 301 to provide horizontal driving force during the coarse adjustment stage. The second sprocket 303 is fixedly connected to the output shaft of the drive motor 302, and the transmission column 305 is parallel to the slide rail. The transmission column 305 is configured such that its two ends are rotatably connected to the side frame 301 via bearings. One end of the transmission column 305 is also fixedly connected to the second sprocket 303. The second sprocket is connected to the second sprocket 303 on the drive motor 302 via the second chain 304. The transmission column 305 is specifically constructed as a rotatable screw. The bottom of the slide table 306 is fixedly connected to a nut block that is threadedly engaged with the screw, thereby efficiently converting the rotational motion of the transmission column 305 into the linear motion of the slide table 306. The fine-tuning drive unit includes an electric cylinder 307 and a pusher 308. The cylinder body of the electric cylinder 307 is fixedly mounted on the top surface of the slide 306 to output precise linear thrust for precise positioning. The pusher 308 is fixedly connected to the telescopic output end of the electric cylinder 307.

[0019] Working principle: First, based on the height requirements for corner panel processing, the bidirectional motor 201 in the lifting mechanism 2 is activated. This bidirectional motor 201 provides controllable lifting power for the entire lifting mechanism 2. After the bidirectional motor 201 is activated, it drives the output shaft 202 to rotate. The output shaft 202 synchronously drives the first sprockets 203 at both ends to rotate. The first sprockets 203 are driven by the first chain 204, which drives the hanging platform 205, which is fixedly connected to the first chain 204, to rise and fall smoothly along the vertical guide rail on the support frame 1. The hanging plate 206 fixed at the bottom of the hanging platform 205 and the hanging bracket 207 suspended below the hanging plate 206 move synchronously, thereby adjusting the shelf carried by the hanging bracket 207 to the appropriate processing height. After the height adjustment is completed, the push-pull mechanism 3 is activated, and the drive motor 302 installed on the side frame 301 is activated. This drive motor 302 is used to provide coarse adjustment steps. The horizontal driving force of the section is driven by the drive motor 302, which drives the transmission column 305 to rotate through the second sprocket 303 and the second chain 304. Since the transmission column 305 is a screw and is threadedly engaged with the nut block at the bottom of the slide table 306, the slide table 306 is driven and slides smoothly along the slide rail 309, realizing the initial horizontal displacement of the shelf and bringing it to the approximate processing position. After the slide table 306 moves into place, the electric cylinder 307 fixed on the slide table 306 is activated. The electric cylinder 307 is used to output precise linear thrust to achieve precise positioning. The output end of the electric cylinder 307 pushes the push table 308 to perform a small-range secondary push on the shelf, so that the corner plate on the shelf is accurately moved to the processing position to facilitate processing operations. After processing is completed, the drive motor 302 and the electric cylinder 307 are started in reverse, which can drive the push table 308 and the slide table 306 to reset, completing the horizontal return of the shelf.

Claims

1. A push-pull structure for a double-layer shelving unit used for corner panel processing, comprising: Support frame (1); The lifting mechanism (2) includes a lifting platform (205) mounted on the support frame (1) and capable of being lifted and lowered thereal. And a push-pull mechanism (3), which is disposed on the hanging platform (205), the push-pull mechanism (3) includes a slide rail (309) and a slide table (306) that can slide on the slide rail (309). Its features are: The push-pull mechanism (3) includes a coarse adjustment drive unit for driving the slide table (306) to perform a first horizontal displacement, and a fine adjustment drive unit for driving the workpiece on the slide table (306) to perform a second horizontal displacement. The coarse adjustment drive unit includes a drive motor (302), a second sprocket (303) connected to the drive motor (302), and a transmission column (305) connected to the second sprocket (303) via a second chain (304). The transmission column (305) is connected to the slide table (306). The fine adjustment drive unit includes an electric cylinder (307) fixed on the slide table (306) and a pusher (308) connected to the output end of the electric cylinder (307).

2. The push-pull structure of a double-layer shelf for corner panel processing according to claim 1, characterized in that: The lifting mechanism (2) further includes a bidirectional motor (201), an output shaft (202) connected to the bidirectional motor (201), a first sprocket (203) connected to the output shaft (202) and a first chain (204) connected to the first sprocket (203). The platform (205) is fixedly connected to the first chain (204).

3. The push-pull structure of a double-layer shelf for corner panel processing according to claim 2, characterized in that: The output shaft (202) is arranged horizontally, and the first sprocket (203) is fixedly connected to both ends of it.

4. The push-pull structure of a double-layer shelf for corner panel processing according to claim 1, characterized in that: The support frame (1) is provided with a vertical guide rail for the lifting platform (205) to move up and down along it.

5. The push-pull structure of a double-layer shelf for corner panel processing according to claim 1, characterized in that: The lifting mechanism (2) further includes a hanging plate (206) and a hanging frame (207); the hanging plate (206) is fixedly installed at the bottom of the lifting platform (205), and the hanging frame (207) is connected to the bottom of the hanging plate (206).

6. The push-pull structure of a double-layer shelving unit for corner panel processing according to claim 1, characterized in that: The push-pull mechanism (3) also includes a side frame (301), and the drive motor (302) and the slide rail (309) are both mounted and fixed on the side frame (301).

7. The push-pull structure of a double-layer shelving unit for corner panel processing according to claim 6, characterized in that: The side frame (301) is fixedly installed on the lifting platform (205).

8. The push-pull structure of a double-layer shelving unit for corner panel processing according to claim 1, characterized in that: The transmission column (305) is a rotatable screw, and the slide (306) is provided with a nut block that is threadedly engaged with the screw.

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