Arc-shaped steel plate bevel cutting jig frame

Abstract

This utility model provides a bevel cutting jig for curved steel plates, relating to the field of curved steel plate bevel cutting technology. The utility model includes two U-shaped rods fixedly installed on the surface of a base, with two horizontal strips slidably connected between the two U-shaped rods. An extension plate is fixedly installed on one side surface of each of the two horizontal strips. An L-shaped bracket is fixedly installed on the surface of the base. A through groove is formed on the inner wall surface of the vertical end of the L-shaped bracket. A vertical rod is fixedly installed between the inner walls of the upper and lower ends of the through groove. A T-shaped plate is slidably connected to the outer wall surface of the vertical rod. This utility model, through an adjustment device, allows for the adjustment of the distance between the two horizontal strips to accommodate curved steel plates of different diameters. Unlike traditional fixed jigs, it eliminates the need to redesign and manufacture new jigs for each specification of curved steel plate, reducing material waste and processing time, significantly lowering production and equipment replacement costs, and also saving space required for jig storage.

Description

Technical Field

[0001] This utility model relates to the field of curved steel plate beveling technology, and in particular to a curved steel plate beveling jig. Background Technology

[0002] Curved steel plates are frequently used in steel structure products such as marine engineering, petrochemicals, mining, and pressure vessels. In particular, thicker curved steel plates need to be beveled before welding to ensure weld penetration and structural strength.

[0003] Existing curved steel plate beveling cutting jigs are mostly customized fixed structures that can only adapt to curved steel plates with a single radius and thickness. When it is necessary to cut curved steel plates of different specifications, a new jig needs to be redesigned and manufactured, which not only increases material costs and processing cycle, but also leads to a decrease in production efficiency due to frequent jig replacements. Utility Model Content

[0004] The purpose of this utility model is to solve the problems mentioned above in the background art by proposing an arc-shaped steel plate bevel cutting jig.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an arc-shaped steel plate beveling cutting jig, comprising a base and an arc-shaped steel plate body, wherein the surface of the base is provided with an adjustment device, the adjustment device comprising two U-shaped rods fixedly installed on the surface of the base, two horizontal bars slidably connected between the two U-shaped rods, and an extension plate fixedly installed on one side surface of each of the two horizontal bars.

[0006] Preferably, an L-shaped bracket is fixedly installed on the surface of the base, a through groove is formed on the inner wall surface of the vertical end of the L-shaped bracket, a vertical rod is fixedly installed between the inner walls of the upper and lower ends of the through groove, and a T-shaped plate is slidably connected to the outer wall surface of the vertical rod.

[0007] Preferably, the bottom surface of the T-shaped plate is hinged with two hinge plates, and the end of the hinge plate away from the T-shaped plate is hinged to the extension plate.

[0008] Preferably, a cylinder is fixedly mounted on the surface of the top horizontal end of the L-shaped bracket, and the output end of the cylinder is fixedly connected to the T-shaped plate.

[0009] The effect achieved by the above components is that by adjusting the distance between the two horizontal bars, they can be adapted to curved steel plates of different diameters. Unlike traditional fixed jigs, there is no need to redesign and manufacture new jigs for each size of curved steel plate. This reduces material waste and processing cycle, significantly reduces production and equipment replacement costs, and also saves space required for jig storage.

[0010] Preferably, each of the two horizontal strips is provided with a fixing device. The fixing device includes an L-shaped fixing abutment frame fixedly installed on the surface of the two horizontal strips. Each of the two L-shaped fixing abutment frames is slidably connected to a slide rod. Each of the two slide rods is fixedly installed with an anti-detachment plate at the end away from the L-shaped fixing abutment frame. Each of the two slide rods is slidably connected to an L-shaped movable abutment frame on the outer wall surface.

[0011] Preferably, a vertical pole is fixedly installed on one side surface of the L-shaped movable abutment frame, a sliding plate is slidably connected to the surface of the vertical pole, a positioning rod is fixedly installed on the bottom surface of the sliding plate, and a positioning hole matching the positioning rod is opened on the outer wall surface of the sliding rod.

[0012] Preferably, a pull rod is fixedly installed on the surface of the slide plate away from the positioning rod, a circular plate is fixedly installed on the end of the upright away from the L-shaped movable abutment frame, and a spring is fixedly installed between the circular plate and the slide plate.

[0013] The effect achieved by the above components is as follows: by forming a clamp from both sides of the curved steel plate through the L-shaped fixed abutment frame and the L-shaped movable abutment frame, the lateral movement of the steel plate can be effectively restricted; thereby preventing the curved steel plate from shifting during the cutting process, ensuring the accuracy of the bevel cutting, and reducing subsequent welding rework caused by cutting deviation.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows: In this invention, by setting an adjustment device, the distance between the two horizontal bars can be adjusted to accommodate curved steel plates of different diameters. Unlike traditional fixed jigs, there is no need to redesign and manufacture new jigs for each specification of curved steel plate, which reduces material waste and processing cycle, significantly reduces production and equipment replacement costs, and also saves space required for jig storage. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This utility model Figure 1 Another structural diagram from a different angle; Figure 3 This utility model Figure 1 Schematic diagram of the structure at point A; Figure 4 This utility model Figure 2 A schematic diagram of the structure at point B.

[0016] Legend: 1. Base; 2. Adjustment device; 21. U-shaped rod; 22. Horizontal bar; 23. Extension plate; 24. L-shaped bracket; 25. Through groove; 26. Vertical rod; 27. T-shaped plate; 28. Hinge plate; 29. ​​Cylinder; 3. Fixing device; 301. L-shaped fixed abutment frame; 302. Slide rod; 303. Anti-detachment plate; 304. L-shaped movable abutment frame; 305. Upright pole; 306. Slide plate; 307. Positioning rod; 308. Positioning hole; 309. Pull rod; 310. Circular plate; 311. Spring; 4. Curved steel plate body. Detailed Implementation

[0017] Example 1, such as Figure 1-4 As shown, an arc-shaped steel plate beveling cutting jig includes a base 1 and an arc-shaped steel plate body 4.

[0018] Reference Figure 2-4 As shown in this embodiment: the surface of the base 1 is provided with an adjustment device 2, the adjustment device 2 includes two U-shaped rods 21 fixedly installed on the surface of the base 1, two horizontal strips 22 are slidably connected between the two U-shaped rods 21, and extension plates 23 are fixedly installed on one side surface of each of the two horizontal strips 22. An L-shaped bracket 24 is fixedly installed on the surface of the base 1. A through groove 25 is opened on the inner wall surface of the vertical end of the L-shaped bracket 24. A vertical rod 26 is fixedly installed between the inner walls of the upper and lower ends of the through groove 25. A T-shaped plate 27 is slidably connected to the outer wall surface of the vertical rod 26. Two hinge plates 28 are hinged to the bottom surface of the T-shaped plate 27. The end of the hinge plate 28 away from the T-shaped plate 27 is hinged to the extension plate 23. A cylinder 29 is fixedly installed on the surface of the top horizontal end of the L-shaped bracket 24. The output end of the cylinder 29 is fixedly connected to the T-shaped plate 27. The cylinder 29 is model SC63×400.

[0019] Reference Figure 1-3 As shown in this embodiment: Each of the two horizontal strips 22 is provided with a fixing device 3. The fixing device 3 includes an L-shaped fixing abutment frame 301 fixedly installed on the surface of the two horizontal strips 22. A sliding rod 302 is slidably connected to the surface of each of the two L-shaped fixing abutment frames 301. An anti-detachment plate 303 is fixedly installed at the end of each of the two sliding rods 302 away from the L-shaped fixing abutment frame 301. An L-shaped movable abutment frame 304 is slidably connected to the outer wall surface of each of the two sliding rods 302. One side of the L-shaped movable abutment frame 304... A vertical pole 305 is fixedly installed on the surface of the vertical pole 305. A sliding plate 306 is slidably connected to the surface of the vertical pole 305. A positioning rod 307 is fixedly installed on the bottom surface of the sliding plate 306. A positioning hole 308 matching the positioning rod 307 is opened on the outer wall surface of the sliding rod 302. A pull rod 309 is fixedly installed on the surface of the sliding plate 306 away from the positioning rod 307. A circular plate 310 is fixedly installed on the end of the vertical pole 305 away from the L-shaped movable abutment frame 304. A spring 311 is fixedly installed between the circular plate 310 and the sliding plate 306.

[0020] Working principle: When this device is needed, first determine the target spacing of the two horizontal strips 22 according to the diameter of the arc-shaped steel plate body 4 to be cut. When adjusting the spacing, first start the cylinder 29. The output end of the cylinder 29 will push the T-shaped plate 27 to slide up and down along the outer wall surface of the vertical rod 26. The sliding direction of the T-shaped plate 27 is determined by the extension and retraction direction of the cylinder 29: when the cylinder 29 extends, the T-shaped plate 27 rises; when the cylinder 29 retracts, the T-shaped plate 27 falls. While the T-shaped plate 27 slides, it will drive the two hinged plates 28 at its bottom to rotate synchronously. The end of the hinged plate 28 away from the T-shaped plate 27 will pull or push the extension plate 23. If the T-shaped plate 27 falls, the hinged plate 28 will unfold to both sides, driving the two extension plates 23 to move away from each other; if the T-shaped plate 27 falls, the extension plate 28 will unfold to both sides, driving the two extension plates 23 to move away from each other. As the plate rises, the hinge plate 28 retracts towards the center, causing the two extension plates 23 to move closer to each other. As the two extension plates 23 move, they simultaneously cause the two horizontal strips 22 to slide on the outer wall surfaces of the two U-shaped rods 21. When the horizontal strips 22 move to a target position that matches the diameter of the arc-shaped steel plate body 4, the cylinder 29 is closed. At this point, the position of the horizontal strips 22 is stably locked, providing suitable support for subsequent steel plate fixing. When fixing the arc-shaped steel plate body 4, first, one side of the arc-shaped steel plate body 4 is pressed against the inner wall surface of the two L-shaped fixing abutment frames 301 to ensure the steel plate is placed stably. Then, both hands grasp the pull rods 309 of the two fixing devices 3 and pull the pull rods 309 upwards. The pull rods 309 will cause the sliding plate 306 to move along the surface of the upright 305 towards... As the slide plate 306 slides upwards, it compresses the spring 311 between the circular plate 310 and the slide plate 306, causing the spring 311 to be compressed. Simultaneously, the positioning rod 307 at the bottom of the slide plate 306 moves upwards in sync with the slide plate until it completely disengages from the positioning hole 308 on the surface of the slide rod 302, no longer obstructing the sliding of the L-shaped movable abutment frame 304. Then, the L-shaped movable abutment frame 304 is pushed towards the curved steel plate body 4, allowing it to slide along the outer wall surface of the slide rod 302. The pushing stops when the inner wall surface of the L-shaped movable abutment frame 304 completely abuts against the other side of the curved steel plate body 4. The pull rod 309 is then released, and the rebound force of the spring 311 pushes the slide plate 306 downwards along the upright rod 305 to reset. The reset of the slide plate 306 will then... The positioning rod 307 moves downward synchronously, so that it is precisely inserted into the corresponding positioning hole 308 on the surface of the slide rod 302. Through the insertion and cooperation of the positioning rod 307 and the positioning hole 308, the position of the L-shaped movable abutment frame 304 on the slide rod 302 can be restricted to prevent it from sliding at will. At this time, the L-shaped fixed abutment frame 301 and the L-shaped movable abutment frame 304 clamp and fix the arc-shaped steel plate body 4 from both sides. After the arc-shaped steel plate body 4 is fixed, the cutting equipment can be started to perform beveling cutting. During the cutting process, the base 1 provides stable support for the entire jig, the horizontal bar 22 locked by the adjusting device 2 can keep the support height and angle of the steel plate unchanged, and the clamping force of the fixing device 3 can resist the cutting vibration and prevent the steel plate from shifting, thereby improving the accuracy of beveling cutting.After the cutting operation is completed, pull the lever 309 again to disengage the positioning lever 307 from the positioning hole 308, and push the L-shaped moving abutment frame 304 away from the steel plate to release the clamping of the arc-shaped steel plate body 4; then remove the cut arc-shaped steel plate body 4; finally, start the cylinder 29 to control its output end to retract, driving the T-shaped plate 27 to rise. Through the cooperation of the hinge plate 28 and the extension plate 23, the two horizontal bars 22 move along the U-shaped lever 21 towards each other, returning to their initial position for the next use.

[0021] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A bevel cutting jig for arc-shaped steel plates, comprising a base (1) and an arc-shaped steel plate body (4), characterized in that: The base (1) is provided with an adjustment device (2). The adjustment device (2) includes two U-shaped rods (21) fixedly installed on the surface of the base (1). Two horizontal strips (22) are slidably connected between the two U-shaped rods (21). An extension plate (23) is fixedly installed on one side surface of each of the two horizontal strips (22).

2. The arc-shaped steel plate beveling cutting jig according to claim 1, characterized in that: An L-shaped bracket (24) is fixedly installed on the surface of the base (1). A through groove (25) is opened on the inner wall surface of the vertical end of the L-shaped bracket (24). A vertical rod (26) is fixedly installed between the inner walls of the upper and lower ends of the through groove (25). A T-shaped plate (27) is slidably connected to the outer wall surface of the vertical rod (26).

3. The arc-shaped steel plate beveling cutting jig according to claim 1, characterized in that: The bottom surface of the T-shaped plate (27) is hinged to two hinge plates (28), one end of the hinge plate (28) away from the T-shaped plate (27) and the extension plate (23).

4. The arc-shaped steel plate beveling cutting jig according to claim 1, characterized in that: A cylinder (29) is fixedly installed on the surface of the top horizontal end of the L-shaped bracket (24), and the output end of the cylinder (29) is fixedly connected to the T-shaped plate (27).

5. The arc-shaped steel plate beveling cutting jig according to claim 1, characterized in that: The surfaces of the two horizontal bars (22) are provided with fixing devices (3). The fixing devices (3) include L-shaped fixing abutment frames (301) fixedly installed on the surfaces of the two horizontal bars (22). The surfaces of the two L-shaped fixing abutment frames (301) are slidably connected with slide rods (302). The ends of the two slide rods (302) away from the L-shaped fixing abutment frames (301) are fixedly installed with anti-detachment plates (303). The outer wall surfaces of the two slide rods (302) are slidably connected with L-shaped movable abutment frames (304).

6. The arc-shaped steel plate beveling cutting jig according to claim 5, characterized in that: A vertical rod (305) is fixedly installed on one side surface of the L-shaped movable contact frame (304). A sliding plate (306) is slidably connected to the surface of the vertical rod (305). A positioning rod (307) is fixedly installed on the bottom surface of the sliding plate (306). A positioning hole (308) matching the positioning rod (307) is opened on the outer wall surface of the sliding rod (302).

7. The arc-shaped steel plate beveling cutting jig according to claim 6, characterized in that: A pull rod (309) is fixedly installed on the surface of the sliding plate (306) away from the positioning rod (307), and a round plate (310) is fixedly installed on the end of the upright (305) away from the L-shaped movable abutment frame (304). A spring (311) is fixedly installed between the round plate (310) and the sliding plate (306).

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