A double cutter flat plate groove edge milling machine

Abstract

This invention provides a double-milling-cut flat plate beveling machine, belonging to the field of sheet metal processing. It includes a base, on which a frame is mounted. A milling cutter support plate is rotatably mounted on the frame. Two cutter discs are mounted on the milling cutter support plate, each connected to the output shaft of a cutting motor mounted on the support plate. The milling cutter support plate is also connected to an angle coarse adjustment structure mounted on the frame, which drives the milling cutter support plate to rotate. A sheet metal clamping structure is mounted on the frame, with a sheet metal placement surface that can move vertically. A sheet metal driving structure is also provided at the placement surface.

Description

Technical Field

[0001] This invention belongs to the field of sheet metal processing, and particularly relates to a flat plate beveling milling machine with double milling cutters. Background Technology

[0002] A milling machine is a welding auxiliary device that uses a high-speed milling cutter head to create weld bevels on steel plates before welding. It is mainly divided into several types, such as automatic walking steel plate milling machines, large milling machines, and CNC steel plate milling machines. It is widely used in boiler and pressure vessel manufacturing industries, shipbuilding, power, petroleum, chemical machinery, and engineering machinery manufacturing. It can process various medium and low carbon steel plates, stainless steel plates, and aluminum plates to create bevels, straight edges, and U-shaped bevels before welding.

[0003] Current milling machines typically use only one cutter head. If the cutter head reaches the end of its service life during the milling process, it is necessary to stop work and replace it with a new one, resulting in material waste and economic losses, and affecting work efficiency.

[0004] For example, a Chinese invention patent discloses a steel plate milling machine [application number: CN202320590253.3], which includes a processing table and two sets of symmetrical milling components on the processing table. The milling components include a housing, on which a motor for providing power is installed, and inside the housing are a gear set and a milling cutter disc. The outer walls of the two sets of housings that are close to each other are provided with feed ports, and a clamping device is provided near the milling cutter disc at the feed port. The clamping device includes an upper roller and a lower roller that are symmetrically arranged. The clamping device also includes a drive source and a moving part. The drive source is fixedly installed on the top outer wall of the housing corresponding to the feed port. A moving part extending inside the housing is provided at the bottom of the drive source. The drive source is fixedly connected to the upper roller through the moving part. A horizontal plate is fixedly installed between the inner walls of the housing corresponding to the lower part of the upper roller. An adjustable lower roller is provided on the horizontal plate directly below the upper roller. Motor 2 is embedded in the center of the bottom outer wall of the lower roller. The output end of motor 2 is fixedly connected to a threaded screw that passes through the horizontal plate. The part of the threaded screw that extends out of the horizontal plate is threadedly connected to the threaded ring, and the threaded screw passes through the threaded ring and extends upward into the interior of the lower roller. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a flat plate beveling machine with dual milling cutters.

[0006] To achieve the above objectives, the present invention adopts the following technical solutions: A double-cutter flatbed beveling machine includes a base, a frame on the base, a cutter support plate rotatably mounted on the frame, two cutter discs on the cutter support plate, each cutter disc being connected to the output shaft of a cutting motor mounted on the cutter support plate, an angle coarse adjustment structure mounted on the frame, the angle coarse adjustment structure driving the cutter support plate to rotate, a plate clamping structure on the frame, a plate placement surface on the plate clamping structure, the plate placement surface being movable along the vertical direction, and a plate driving structure at the plate placement surface.

[0007] In the aforementioned double-milling-cut flat beveling machine, two cutting motors are respectively mounted on two extension blocks, which slide on the milling cutter support plate via extension tracks. Each extension block is connected to a linear driver mounted on the milling cutter support plate.

[0008] In the aforementioned double-milling-cut flat plate beveling machine, the plate clamping structure includes a fixed clamping plate mounted on the frame and a movable clamping plate that can move along the vertical direction. The plate placement surface is mounted on the movable clamping plate. Vertical guide rails are provided on the left and right sides of the frame. The movable clamping plate encloses the two vertical guide rails and is slidably connected to them. Several lifting outer shafts are provided at the bottom of the movable clamping plate. Each lifting outer shaft is screwed with a lifting inner shaft. The lifting inner shaft is connected to the output shaft of a drive motor mounted on the frame.

[0009] In the aforementioned double-end milling cutter flat plate beveling machine, the plate driving structure includes several upper active shafts rotatably mounted on a fixed clamping plate. One end of each upper active shaft is provided with an upper drive wheel. The several upper drive wheels are synchronously connected by belts or toothed belts. At least one upper active shaft or upper drive wheel is connected to a driving power source. The plate driving structure also includes several lower active shafts rotatably mounted on a movable clamping plate. One end of each lower active shaft is provided with a lower drive wheel. The several lower drive wheels are synchronously connected by belts or toothed belts. At least one lower active shaft or lower drive wheel is connected to a driving power source.

[0010] In the above-mentioned double-end milling cutter flat beveling machine, there are several driven shafts rotatably mounted on a fixed clamping plate or a movable clamping plate between adjacent upper drive shafts and adjacent lower drive shafts. The outer surfaces of the upper drive shaft, lower drive shaft and driven shaft are fitted with a rubber ring.

[0011] In the aforementioned double-milling-cut flat plate beveling machine, the plate clamping structure is located on the front side of the frame, the angle coarse adjustment structure is located on the rear side of the frame, and an angle adjustment box is provided on the rear side of the frame. The angle coarse adjustment structure includes a vertical guide groove on the angle adjustment box, an angle adjustment lifting plate is slidably arranged in the vertical guide groove, the angle adjustment lifting plate is connected to the output shaft of the lifting driver provided in the angle adjustment box, and a support is provided on the angle adjustment lifting plate and the milling cutter support plate, respectively. A support block is rotatably arranged in the support, and an angle adjustment shaft is arranged between the two support blocks.

[0012] In the above-mentioned double-milling cutter flat beveling machine, the angle adjustment shaft is further provided with an angle fine-tuning structure, and the angle adjustment lifting plate does not move when the angle of the milling cutter support plate is adjusted.

[0013] In the above-mentioned double-milling cutter flat beveling machine, the angle adjustment shaft is rotatably connected to the support block on the milling cutter support plate and passes through the support block on the angle adjustment lifting plate. The angle fine-tuning structure includes a spiral line set on the outer surface of the angle adjustment shaft and screwed to the support block on the angle adjustment lifting plate. The angle fine-tuning structure also includes a meshing connecting sleeve set on the angle adjustment shaft.

[0014] In the above-mentioned double-milling cutter flat beveling edge milling machine, there is a baffle set on the frame between the fixed clamping plate and the milling cutter support plate. The baffle is provided with two cutting holes, which extend to the fixed clamping plate and are L-shaped.

[0015] In the aforementioned double-milling cutter flat beveling machine, the base is provided with a frame slide rail, and the frame is slidably mounted on the frame slide rail.

[0016] Compared with existing technologies, the advantages of this invention are: The two cutter heads are independent of each other. One cutter head is used for edge milling, and the other cutter head is on standby. When the working cutter head reaches the end of its service life, the standby cutter head will automatically switch in and start working immediately. The entire unit does not need to stop. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 A diagram from another direction; Figure 3 yes Figure 1 Side view diagram; Figure 4 yes Figure 3 A diagram from another direction.

[0018] In the diagram: base 10, frame 11, milling cutter support plate 12, cutter head 13, extension block 14, extension rail 15, fixed clamping plate 16, movable clamping plate 17, vertical guide rail 18, lifting outer shaft 19, lifting inner shaft 20, upper active rotating shaft 21, upper drive wheel 22, lower active rotating shaft 23, lower drive wheel 24, angle adjustment box 25, vertical guide groove 26, angle adjustment lifting plate 27, support 28, support block 29, angle adjustment shaft 30, meshing connecting sleeve 31, baffle 32, cutting opening 33, frame slide rail 34. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] This embodiment provides a flatbed beveling machine with dual end mills, combined with... Figure 1-4 As shown, the device includes a base 10, on which a frame 11 is mounted. A milling cutter support plate 12 is rotatably mounted on the frame 11. Two cutter discs 13 are mounted on the milling cutter support plate 12, and the two cutter discs 13 are respectively connected to the output shaft of a cutting motor mounted on the milling cutter support plate 12. The milling cutter support plate 12 is also connected to an angle coarse adjustment structure mounted on the frame 11. The angle coarse adjustment structure can drive the milling cutter support plate 12 to rotate. The frame 11 is provided with a plate clamping structure. The plate clamping structure has a plate placement surface that can move along the vertical direction. A plate driving structure is also provided at the plate placement surface.

[0021] In this embodiment, the plate is placed on the plate placement surface and clamped by the plate placement surface rising and the plate clamping structure. Then, the milling cutter support plate 12 rotates through the angle strip structure and adjusts the cutter head 13 to a suitable milling angle. The cutter head 13 rotates under the operation of the cutting motor and is provided with several cutter heads. The plate moves under the drive of the plate driving structure, so that the cutter head 13 mills the edge of the plate.

[0022] In this embodiment, the two cutter heads 13 are independent of each other. One cutter head 13 is used for edge milling, and the other cutter head 13 is on standby. When the working cutter head 13 reaches the end of its service life, the standby cutter head 13 is automatically replaced and put into operation immediately. The entire unit does not need to stop.

[0023] Two cutting motors are respectively mounted on two extension blocks 14, which slide on the milling cutter support plate 12 via extension rails 15. Each extension block 14 is connected to a linear driver mounted on the milling cutter support plate 12.

[0024] The plate clamping structure includes a fixed clamping plate 16 mounted on the frame 11 and a movable clamping plate 17 that can move along the vertical direction. The plate placement surface is mounted on the movable clamping plate 17. Vertical guide rails 18 are respectively provided on the left and right sides of the frame 11. The movable clamping plate 17 encloses the two vertical guide rails 18 and is slidably connected to the vertical guide rails 18. Several lifting outer shafts 19 are provided at the bottom of the movable clamping plate 17. Each lifting outer shaft 19 is screwed with a lifting inner shaft 20. The lifting inner shaft 20 is connected to the output shaft of the drive motor mounted on the frame 11.

[0025] In this embodiment, the plate is fixedly placed on the movable clamping plate 17. The operation of the drive motor causes the lifting inner shaft 20 to rotate. Under the guidance of the screw connection between the lifting outer periphery 19 and the lifting inner shaft 20 and the vertical guide rail 18, the movable clamping plate 17 moves upward and approaches the fixed clamping plate 16, thereby clamping the plate between the fixed clamping plate 16 and the movable clamping plate 17. The plate moving structure is set on the fixed clamping plate 16 and the movable clamping plate 17.

[0026] The plate moving structure includes several upper active shafts 21 rotatably mounted on the fixed clamping plate 16. One end of each upper active shaft 21 is provided with an upper drive wheel 22. The several upper drive wheels 22 are synchronously connected to each other by a belt or a toothed belt. At least one upper active shaft 21 or upper drive wheel 22 is connected to a driving power source. The plate moving structure also includes several lower active shafts 23 rotatably mounted on the movable clamping plate 17. One end of each lower active shaft 23 is provided with a lower drive wheel 24. The several lower drive wheels 24 are synchronously connected to each other by a belt or a toothed belt. At least one lower active shaft 23 or lower drive wheel 24 is connected to a driving power source.

[0027] In this embodiment, when the plate is clamped on the fixed clamping plate 16 and the movable clamping plate 17, the upper active rotating shaft 21 and the lower active rotating shaft 23 abut against the upper surface and the lower surface of the plate, respectively. During the milling process, the upper active rotating shaft 21 and the lower active rotating shaft 23 are rotated by the connection of the belt or toothed belt, thereby pushing the plate to move.

[0028] Between adjacent upper active rotating shafts 21 and adjacent lower active rotating shafts 23, there are several driven rotating shafts rotatably mounted on fixed clamping plate 16 or movable clamping plate 17. The outer surfaces of the upper active rotating shaft 21, lower active rotating shaft 23 and driven rotating shafts are fitted with a layer of rubber ring.

[0029] In this embodiment, the plate reduces the friction between itself and the fixed clamping plate 16 and the movable clamping plate 17 by resisting each rotating shaft, and increases the friction between itself and each rotating shaft by the rubber rings on each rotating shaft, so that the rotating shaft prevents slippage between the rotating shaft and the plate during the rotation and driving of the plate.

[0030] The plate clamping structure is located on the front side of the frame 11, and the angle coarse adjustment structure is located on the rear side of the frame 11. An angle adjustment box 25 is provided on the rear side of the frame 11. The angle coarse adjustment structure includes a vertical guide groove 26 provided on the angle adjustment box 25. An angle adjustment lifting plate 27 is slidably arranged in the vertical guide groove 26. The angle adjustment lifting plate 27 is connected to the output shaft of the lifting driver provided in the angle adjustment box 25. A support 28 is provided on the angle adjustment lifting plate 27 and the milling cutter support plate 12 respectively. A support block 29 is rotatably arranged in the support 28. An angle adjustment shaft 30 is provided between the two support blocks 29.

[0031] In this embodiment, when adjusting the milling angle of the cutter head 13 by rotating the milling cutter support plate 12, the operation of the lifting driver causes the angle adjusting lifting plate 27 in the angle adjusting box 25 to move up or down in the vertical guide groove 26, thereby causing the milling cutter support plate 12 to rotate by pulling the angle adjusting shaft 30, thereby adjusting the milling angle of the cutter head 13.

[0032] The angle adjustment shaft 30 is also provided with an angle fine-tuning structure, and the angle adjustment lifting plate 27 does not move when the angle of the milling cutter support plate 12 is adjusted.

[0033] In this embodiment, if a slight difference in angle is found during edge milling or manual calibration, it is corrected by slightly rotating the milling cutter support plate 12 through the angle fine-tuning structure.

[0034] The angle adjustment shaft 30 is rotatably connected to the support block 29 located on the milling cutter support plate 12 and passes through the support block 29 located on the angle adjustment lifting plate 27. The angle fine-tuning structure includes a spiral line set on the outer surface of the angle adjustment shaft and screwed to the support block 29 located on the angle adjustment lifting plate 27. The angle fine-tuning structure also includes an engagement connecting sleeve 31 set on the angle adjustment shaft 30.

[0035] In this embodiment, during the rotation of the fine-tuning milling cutter support plate 12, the external power source causes the angle adjustment shaft 30 to rotate through the meshing connecting sleeve 31, or the angle adjustment shaft 30 is rotated manually. During the rotation of the angle adjustment shaft 30, since the angle adjustment shaft 30 is screwed to the support block 29 located on the angle adjustment lifting plate 27, the length of the angle adjustment shaft 30 between the two support blocks 29 changes, thereby pulling or pushing the milling cutter support plate 12 to make a slight rotation to correct the milling angle.

[0036] The fixed clamping plate 16 and the milling cutter support plate 12 are provided with a baffle 32 on the frame 11. The baffle 32 is provided with two cutting holes 33, which extend to the fixed clamping plate 16 and are L-shaped.

[0037] In this embodiment, during the milling process, the cutter head 13 passes through the cutting opening 33 and presses against the plate under the push of the linear driver to mill the edge. In addition, the baffle 32 can block the waste material generated during milling from splashing out.

[0038] The base 10 is provided with a frame slide rail 34, and the frame 11 is slidably mounted on the frame slide rail 34.

[0039] In this embodiment, the method of moving the entire device by sliding the frame 11 on the frame rail 34 is more stable than the roller method.

[0040] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

[0041] Although this document frequently uses terms such as base 10, frame 11, milling cutter support plate 12, cutter head 13, extension block 14, extension rail 15, fixed clamping plate 16, moving clamping plate 17, vertical guide rail 18, lifting outer shaft 19, lifting inner shaft 20, upper active rotating shaft 21, upper drive wheel 22, lower active rotating shaft 23, lower drive wheel 24, angle adjustment box 25, vertical guide groove 26, angle adjustment lifting plate 27, support 28, support block 29, angle adjustment shaft 30, meshing connecting sleeve 31, baffle 32, cutting opening 33, frame slide rail 34, etc., these terms are used merely for the convenience of describing and explaining the essence of the invention; interpreting them as any additional limitation would contradict the spirit of the invention.

Claims

1. A double-cutter flat beveling machine, comprising a base (10), wherein a frame (11) is provided on the base (10), characterized in that, A milling cutter support plate (12) is rotatably mounted on the frame (11). Two cutter discs (13) are mounted on the milling cutter support plate (12). The two cutter discs (13) are respectively connected to the output shaft of the cutting motor mounted on the milling cutter support plate (12). The milling cutter support plate (12) is also connected to an angle coarse adjustment structure mounted on the frame (11). The angle coarse adjustment structure can drive the milling cutter support plate (12) to rotate. A plate clamping structure is mounted on the frame (11). A plate placement surface is mounted on the plate clamping structure. The plate placement surface can move along the vertical direction. A plate driving structure is also mounted on the plate placement surface.

2. The double-milling-cut flat plate beveling machine according to claim 1, characterized in that, Two cutting motors are respectively mounted on two extension blocks (14), which slide on the milling cutter support plate (12) via extension rails (15). Each extension block (14) is connected to a linear driver mounted on the milling cutter support plate (12).

3. The double-end milling cutter flat plate beveling machine according to claim 1, characterized in that, The plate clamping structure includes a fixed clamping plate (16) set on the frame (11) and a movable clamping plate (17) that can move along the vertical direction. The plate placement surface is set on the movable clamping plate (17). Vertical guide rails (18) are respectively provided on the left and right sides of the frame (11). The movable clamping plate (17) wraps around the two vertical guide rails (18) and is slidably connected to the vertical guide rails (18). Several lifting outer shafts (19) are provided at the bottom of the movable clamping plate (17). Each lifting shaft (19) is screwed with a lifting inner shaft (20). The lifting inner shaft (20) is connected to the output shaft of the drive motor set on the frame (11).

4. A double-milling-cut flatbed beveling machine according to claim 3, characterized in that, The plate moving structure includes several upper active shafts (21) rotatably mounted on a fixed clamping plate (16). One end of each upper active shaft (21) is provided with an upper drive wheel (22). The several upper drive wheels (22) are synchronously connected by belts or toothed belts. At least one upper active shaft (21) or upper drive wheel (22) is connected to a driving power source. The plate moving structure also includes several lower active shafts (23) rotatably mounted on a movable clamping plate (17). One end of each lower active shaft (23) is provided with a lower drive wheel (24). The several lower drive wheels (24) are synchronously connected by belts or toothed belts. At least one lower active shaft (23) or lower drive wheel (24) is connected to a driving power source.

5. A flatbed beveling machine with double milling cutters according to claim 1, characterized in that, Between adjacent upper active rotating shafts (21) and adjacent lower active rotating shafts (23), there are several driven rotating shafts rotatably mounted on fixed clamping plate (16) or movable clamping plate (17). The outer surfaces of the upper active rotating shaft (21), lower active rotating shaft (23) and driven rotating shafts are fitted with a layer of rubber ring.

6. A double-milling-cut flatbed beveling machine according to claim 1, characterized in that, The plate clamping structure is located on the front side of the frame (11), and the angle coarse adjustment structure is located on the rear side of the frame (11). An angle adjustment box (25) is provided on the rear side of the frame (11). The angle coarse adjustment structure includes a vertical guide groove (26) provided on the angle adjustment box (25). An angle adjustment lifting plate (27) is slidably provided in the vertical guide groove (26). The angle adjustment lifting plate (27) is connected to the output shaft of the lifting driver provided in the angle adjustment box (25). A support (28) is provided on the angle adjustment lifting plate (27) and the milling cutter support plate (12). A support block (29) is rotatably provided in the support (28). An angle adjustment shaft (30) is provided between the two support blocks (29).

7. A double-milling-cut flatbed beveling machine according to claim 6, characterized in that, The angle adjustment shaft (30) is also provided with an angle fine-tuning structure. When the angle of the milling cutter support plate (12) is adjusted, the angle adjustment lifting plate (27) does not move.

8. A double-milling-cut flatbed beveling machine according to claim 7, characterized in that, The angle adjustment shaft (30) is rotatably connected to the support block (29) on the milling cutter support plate (12) and passes through the support block (29) on the angle adjustment lifting plate (27). The angle fine-tuning structure includes a spiral line set on the outer surface of the angle adjustment shaft and screwed to the support block (29) on the angle adjustment lifting plate (27). The angle fine-tuning structure also includes a meshing connecting sleeve (31) set on the angle adjustment shaft (30).

9. A double-end milling cutter flat plate beveling machine according to claim 2, characterized in that, The fixed clamping plate (16) and the milling cutter support plate (12) are provided with a baffle (32) on the frame (11). The baffle (32) is provided with two cutting holes (33), which extend to the fixed clamping plate (16) and are L-shaped.

10. A flat beveling machine with double milling cutters according to claim 1, characterized in that, The base (10) is provided with a frame slide rail (34), and the frame (11) is slidably mounted on the frame slide rail (34).

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