A steel sheet edge cutting device and method

Abstract

The present application relates to a kind of steel sheet edge cutting device and method, the center of the steel sheet is provided with magnetic chuck, the center is installed with central hinge shaft, the first connecting rod and the second connecting rod are sequentially movably installed on the center, the first connecting rod and the second connecting rod are arranged in X shape, the first two-way threaded adjusting structure is installed between the first connecting rod and the second connecting rod by connecting rod hinge shaft, the second two-way threaded adjusting structure is installed between the first connecting rod and the magnetic chuck by magnetic chuck hinge shaft, the first connecting rod and the second connecting rod one end are installed with track hinge shaft, track fixing frame is installed between the track hinge shaft, track is installed at the end of track fixing frame, cutting trolley is slidably installed on the track, adjust two-way adjusting screw, adjust the position of connecting rod and cutting trolley on cutting torch support rod, start cutting torch and cutting trolley, complete the cutting process of this plate edge.

Description

Technical Field

[0001] This invention relates to the field of steel plate cutting technology, specifically to a steel plate edge cutting device and method. Background Technology

[0002] The statements herein provide only background information in relation to this invention and do not necessarily constitute prior art.

[0003] In the processing of straight seam steel pipes using steel plates, the parallelism and perpendicularity of the four sides of the steel plate play a decisive role in the rolling quality of the steel pipe. Maintaining the parallelism of opposite sides and the perpendicularity of adjacent sides of the steel plate is a challenging problem in the processing of straight seam steel pipes.

[0004] Currently, in the field of straight seam steel pipe processing, the steel plate is generally processed by manual measurement and marking, and then cutting equipment is used to process the four sides. The processing accuracy is relatively low and the work efficiency is low. It is impossible to guarantee the parallelism of the opposite sides of the steel plate and the perpendicularity of the leading edge, resulting in low rolling accuracy of the processed straight seam steel pipe. Summary of the Invention

[0005] This invention provides a steel plate edge cutting device and method, comprising a steel plate, a magnetic chuck at the center of the steel plate, a central hinge shaft at the center of the magnetic chuck, a first connecting rod and a second connecting rod sequentially mounted on the center, the first connecting rod and the second connecting rod being arranged in an X-shape, a first bidirectional threaded adjustment structure being installed between the first connecting rod and the second connecting rod via a connecting rod hinge shaft, a second bidirectional threaded adjustment structure being installed between the first connecting rod and the magnetic chuck via a magnetic chuck hinge shaft, a track hinge shaft being installed at one end of the first connecting rod and the second connecting rod, a track fixing frame being installed between the track hinge shafts, a guide rail being installed at the end of the track fixing frame, and a cutting trolley being slidably mounted on the guide rail.

[0006] Further configured, the first bidirectional threaded adjustment structure includes two screws and a screw sleeve. One end of the screw is movably mounted on the connecting rod via a connecting rod hinge, and the other end of the screw is threadedly engaged with the screw sleeve. The screw and the screw sleeve are fixed by an adjusting fixing screw.

[0007] Further configured, the second bidirectional threaded adjustment structure includes two screws and a screw sleeve. One end of the screw is movably mounted on the connecting rod via a magnetic chuck hinge, and the other end of the screw is threadedly engaged with the screw sleeve. The screw and the screw sleeve are fixed by an adjusting screw.

[0008] The configuration is further configured such that the two screws of the first bidirectional threaded adjustment structure have opposite thread directions, and the two screws of the second bidirectional threaded adjustment structure have opposite thread directions.

[0009] A further configuration is provided, wherein the track fixing frame has an elongated hole, and the track hinge is slidably installed in the elongated hole.

[0010] A further configuration is provided, with an installation reference block provided below the track and corresponding to the track fixing frame, and the track is installed on the steel plate via a trolley track fixing hinge.

[0011] Further configured, the cutting carriage includes a mounting hole, a cutting torch support rod, and fixing screws. The cutting carriage is fixedly installed with a support rod mounting hole, and the cutting torch support rod is installed through the mounting hole.

[0012] A further configuration is provided, wherein a cutting torch mounting hole is provided at the end of the cutting torch support rod, and a fixing bolt is provided in the cutting torch mounting hole, thereby fixing the cutting torch in the cutting torch mounting hole by means of the bolt.

[0013] A further configuration is provided, wherein the steel plate is provided with cutting trajectory lines on four sides of the steel plate, including horizontal cutting trajectory lines and vertical cutting trajectory lines.

[0014] The cutting method includes the following steps:

[0015] The track fixing frame is connected to the connecting rod via a hinge structure, and the cutting trolley track is placed on the track fixing frame;

[0016] Adjust the two-way adjusting screw to adjust the position of the connecting rod and the cutting torch support rod on the cutting carriage so that the cutting line of the cutting torch is at the size to be cut. Start the cutting torch and the cutting carriage to complete the cutting process of this plate edge.

[0017] Disassemble the track fixing frame and connecting rod, and move them together with the cutting carriage to the other end of the steel plate. Then connect and fix the track fixing frame and connecting rod, adjust the position of the cutting torch support rod so that the cutting torch is positioned at the cutting size position on the edge of the steel plate, and start the cutting torch and cutting carriage again to complete the cutting process on the edge of the plate. Repeat the same process until the cutting process on all four edges of the steel plate is completed.

[0018] The beneficial effects of one or more of the above technical solutions:

[0019] By fixing the position of the magnetic chuck to the steel plate, the positions of the connecting rod, the track fixing frame, and the trolley track are also fixed, thus securing the cutting track. When cutting the other side, because the positions of the magnetic chuck and the connecting rod are fixed, and the structural dimensions of the two connecting rods are exactly the same, and the distances from the hinge pins at both ends of the connecting rod to the central hinge pin are also the same, the cutting trajectory after the track fixing frame and the trolley track are reinstalled is parallel to the already cut plate edge. After cutting adjacent edges, the perpendicularity to adjacent edges and the accuracy of plate edge cutting depend on the accuracy between the connecting rod and the track fixing frame, rather than on the measurement and operation accuracy of the operator. This ensures the consistency of batch production and improves the work efficiency of the cutting operation. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation thereof.

[0021] Figure 1 This is a schematic diagram of the structure of the present invention.

[0022] Figure 2 This is a schematic diagram of the structure when the connecting rod and the magnetic chuck of the present invention are installed.

[0023] Figure 3 This is a schematic diagram of the track fixing frame of the present invention.

[0024] Figure 4 This is a schematic diagram of the bidirectional adjusting screw of the present invention.

[0025] Figure 5 This is a schematic diagram of the cutting trolley of the present invention.

[0026] In the diagram, 1. Steel plate, 2. First connecting rod, 3. Connecting rod hinge, 4. Adjusting fixing screw, 5. Screw, 6. Screw sleeve, 7. Track hinge, 8. Center hinge, 9. Magnetic chuck, 10. Steel plate transverse cutting trajectory line, 11. Steel plate transverse cutting trajectory line, 12. First bidirectional threaded adjustment structure, 13. Second bidirectional threaded adjustment structure, 14. Second connecting rod, 15. Track hinge, 16. Track fixing frame, 17. Guide track, 18. Mounting reference block, 19. Trolley track fixing hinge; 20. Elongated hole; 21. Cutting trolley, 22. Cutting torch mounting hole, 23. Fixing screw, 24. Cutting torch support rod, 25. Support rod mounting hole. Detailed Implementation

[0027] The specific implementation of this embodiment will now be described with reference to the accompanying drawings.

[0028] Please refer to Figure 1 The system includes a steel plate 1, a magnetic chuck 9 at the center of the steel plate 1, a central hinge shaft 8 at the center of the magnetic chuck 9, a first connecting rod 2 and a second connecting rod 14 sequentially mounted on the center, the first connecting rod 2 and the second connecting rod 14 arranged in an X-shape, a first bidirectional threaded adjustment structure 12 is installed between the first connecting rod 2 and the second connecting rod 14 through a connecting rod hinge shaft, a second bidirectional threaded adjustment structure 13 is installed between the first connecting rod 2 and the magnetic chuck 9 through a hinge shaft of the magnetic chuck 9, a track hinge shaft 15 is installed at one end of the first connecting rod 2 and the second connecting rod 14, the track hinge shaft 15 is at the same distance from the central hinge shaft 8, a track fixing frame is installed between the track hinge shafts 15, a track is installed at the end of the guide track 17 fixing frame, and a cutting trolley 21 is slidably mounted on the guide track 17.

[0029] Please refer to Figure 2 , 4 The first bidirectional threaded adjustment structure 12 includes two screws 5 and a screw sleeve 6. One end of the screw 5 is movably mounted on the connecting rod through a connecting rod hinge, and the other end of the screw 5 is threadedly engaged with the screw sleeve 6. The screw 5 and the screw sleeve 6 are fixed by an adjusting fixing screw 4.

[0030] The second bidirectional threaded adjustment structure 13 includes two screws 5 and a screw sleeve 6. One end of the screw 5 is movably mounted on the connecting rod via a magnetic chuck 9 hinge. The other end of the screw 5 is threadedly engaged with the screw sleeve 6. The screw 5 and the screw sleeve 6 are fixed by an adjusting fixing screw 4.

[0031] The two screws 5 of the first bidirectional threaded adjustment structure 12 have opposite thread directions, and the two screws 5 of the second bidirectional threaded adjustment structure 13 have opposite thread directions.

[0032] The track fixing frame has an elongated hole 20, and the track hinge shaft 15 is slidably installed in the elongated hole 20. The elongated hole 20 has a guiding function for the track hinge shaft 15.

[0033] Please refer to Figure 3 An installation reference block 18 is provided below the track and corresponding to the track fixing frame. The track is installed on the steel plate 1 through the trolley track fixing hinge.

[0034] Please refer to Figure 5 The cutting carriage 21 includes a mounting hole, a cutting torch support rod 24, and a fixing screw 23. The cutting carriage 21 is fixedly installed with a support rod mounting hole, and the cutting torch support rod 24 is installed through the mounting hole.

[0035] The end of the cutting torch support rod 24 is provided with a cutting torch mounting hole 22, and a fixing bolt is provided in the cutting torch mounting hole 22 to fix the cutting torch in the cutting torch mounting hole 22.

[0036] Rotate to adjust the distance between the first connecting rods 2 so that the cutting carriage 21 is aligned with the steel plate 1 which has four cutting tracks on its four sides, including the horizontal cutting track line and the vertical cutting track line 11.

[0037] Includes the following steps:

[0038] The track fixing frame is connected to the connecting rod through a hinge structure, and the track of the cutting trolley 21 is placed on the track fixing frame;

[0039] Adjust the two-way adjusting screw to adjust the position of the connecting rod and the cutting torch support rod 24 on the cutting carriage 21 so that the cutting line of the cutting torch is located at the size to be cut. Start the cutting torch and the cutting carriage 21 to complete the cutting process of this plate edge.

[0040] Disassemble the track fixing frame and connecting rod, and move them together with the cutting carriage 21 to the other end of the steel plate 1. Then connect and fix the track fixing frame and connecting rod, adjust the position of the cutting torch support rod 24 so that the cutting torch is positioned at the cutting size position on the side of the steel plate 1. Start the cutting torch and cutting carriage 21 again to complete the cutting process on the side of the plate. Repeat the same process until the cutting process on all four sides of the steel plate 1 is completed.

[0041] Specifically, since the four sides of steel plate 1 are uneven, it needs to be cut along the cutting trajectory lines on the four sides of steel plate 1. For example... Figure 1 As shown, the magnetic chuck 9 is first attached to the center of the steel plate 1. Then, the first bidirectional threaded adjustment structure 12 and the second bidirectional threaded adjustment structure 13 are installed onto the magnetic chuck 9 via the central hinge shaft 8. Next, the first connecting rod 2 and the magnetic chuck 9 are connected using the connecting rod, the adjusting screw 5 of the magnetic chuck 9, the central hinge shaft 8, and the connecting hinge shaft between the magnetic chuck 9 and the connecting rod. Then, the first connecting rod 2 and the second connecting rod 14 are connected using the first bidirectional threaded adjustment structure 12 and the connecting rod hinge shaft 3. Next, the track fixing frame is installed together with the first and second connecting rods 141 via the track hinge shaft 15. The trolley track is then placed on the track fixing frame and mounted with the trolley track mounting reference block 18. The trolley track fixing hinge shaft 19 is then used to fix the trolley track to the trolley track fixing hinge shaft. The cutting trolley 21 is placed on the trolley track, and the cutting torch support rod 24 is fixed to the cutting trolley 21 via the cutting torch support rod mounting hole 25 and the cutting torch support rod 24 fixing screw 23.

[0042] Then, when the first bidirectional threaded adjustment structure 12 or the second bidirectional threaded adjustment structure 13 is activated, the distance between the connecting rods 5 and 14 can be increased or decreased. This adjusts the relative positions of the first connecting rod 2 and the second connecting rod 14. When the position is appropriate, the connecting rod adjusting fixing screw 4 is tightened to fix the relative positions of the first connecting rod 2 and the second connecting rod 14.

[0043] Please refer to Figure 5 Finally, adjust the position of the cutting torch support rod 24 so that the center line of the cutting torch mounting hole 22 is aligned with the cutting trajectory line of the four sides of the steel plate 1. Then tighten the cutting torch fixing screw 23 and the cutting torch support rod 24 fixing screw 23 to fix it. At this time, start the cutting carriage 21 to drive the cutting torch to move along the carriage track to complete the cutting process of one edge of the steel plate 1.

[0044] Then, the track hinge 15 is disassembled, the track fixing frame, the trolley track, and the cutting trolley 21 are transferred to the other end of the steel plate 1, and the track fixing frame is connected by the second connecting rod 14 hinge 3 and the first connecting rod 2 hinge. The above adjustment and cutting process is repeated to complete the cutting process of the other end of the steel plate 1.

[0045] Following the same process, all edges of steel plate 1 can be cut.

[0046] The magnetic chuck 9 can only be released after all the edges of the same steel plate 1 have been cut.

[0047] While the specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of the present invention are still within the scope of protection of the present invention.

Claims

1. A method for cutting the edge of a steel plate, characterized in that, A steel plate edge cutting device is used, comprising a steel plate, a magnetic chuck at the center of the steel plate, a central hinge shaft at the center of the magnetic chuck, a first connecting rod and a second connecting rod sequentially mounted on the central hinge shaft, the first and second connecting rods being arranged in an X-shape, a first bidirectional threaded adjustment structure being installed between the first and second connecting rods via a connecting rod hinge shaft, a second bidirectional threaded adjustment structure being installed between the first connecting rod and the magnetic chuck via a magnetic chuck hinge shaft, a track hinge shaft being installed at one end of the first and second connecting rods, a track fixing frame being installed between the track hinge shafts, a track being installed at the end of the track fixing frame, and a cutting trolley being slidably mounted on the track. The first bidirectional threaded adjustment structure includes two screws and a screw sleeve. One end of each screw is movably mounted on a connecting rod via a connecting rod hinge, and the other end of each screw is threaded into the screw sleeve. The screws and the screw sleeve are fixed together by an adjusting screw. The second bidirectional threaded adjustment structure includes two screws and a screw sleeve. One end of each screw is movably mounted on a connecting rod via a magnetic chuck hinge, and the other end of each screw is threaded into the screw sleeve. The screws and the screw sleeve are fixed together by an adjusting screw. The two screws of the first bidirectional threaded adjustment structure have opposite thread directions, and the two screws of the second bidirectional threaded adjustment structure have opposite thread directions. The track fixing frame has an elongated hole, and the track hinge shaft is slidably installed in the elongated hole; The cutting carriage includes a support rod mounting hole, a cutting torch mounting hole, a cutting torch support rod, and fixing screws. The support rod mounting hole is fixedly installed on the cutting carriage, and the cutting torch support rod is installed through the support rod mounting hole. The end of the cutting torch support rod is provided with a cutting torch mounting hole, and a fixing bolt is provided in the cutting torch mounting hole. The cutting torch is fixed in the cutting torch mounting hole by the fixing bolt. The method for cutting the edge of a steel plate includes the following steps: The track fixing frame is connected to the connecting rod through a hinge structure, and the track of the cutting trolley is placed on the track fixing frame; Adjust the bidirectional threaded adjustment structure, adjust the position of the connecting rod and the cutting torch support rod on the cutting carriage, so that the cutting line of the cutting torch is located at the size to be cut, start the cutting torch and the cutting carriage to complete the cutting process of this plate edge; Disassemble the track fixing frame and connecting rod, and move them together with the cutting carriage to the other end of the steel plate. Then connect and fix the track fixing frame and connecting rod, adjust the position of the cutting torch support rod so that the cutting torch is positioned at the cutting size position on the edge of the steel plate, and start the cutting torch and cutting carriage again to complete the cutting process on the edge of the plate. Repeat the same process until the cutting process on all four edges of the steel plate is completed.

2. The steel plate edge cutting method according to claim 1, characterized in that, An installation reference block is provided below the track and corresponding to the track fixing frame. The track is installed on the track fixing frame through the trolley track fixing hinge.

3. The steel plate edge cutting method according to claim 1, characterized in that, The steel plate is provided with cutting trajectory lines on all four sides, including horizontal cutting trajectory lines and vertical cutting trajectory lines.

Images