A metal cutting machine

Abstract

The application discloses a metal cutting machine, belonging to the technical field of casting pouring head cutting, comprising a cutting table, a rack is fixedly connected to one side of the top surface of the cutting table, a lifting plate connected with a lifting driving assembly is arranged on the vertical side plate of the rack, a rotating plate driven to rotate by a rotating driving assembly is connected in the through hole of the lifting plate, a plurality of cutting heads connected with a variable-diameter assembly one by one are arranged below the rotating plate, the center point of the annular array of the cutting heads and the central axis of the rotating plate are located on the same vertical line, the variable-diameter assembly comprises a mounting rod, a lifting ring and a transmission rod, the top end of the mounting rod is rotationally connected with the bottom surface of the rotating plate, the bottom end of the mounting rod is connected with the cutting head, the lifting ring is coaxially arranged below the rotating plate, the lifting ring is connected with a lifting adjusting piece fixedly connected to the rotating plate, and the two ends of the transmission rod are rotationally connected with the mounting rod and the lifting ring respectively. The metal cutting machine adopting the above structure is simple in structure, low in equipment cost and maintenance cost.

Description

Technical Field

[0001] This invention belongs to the field of casting riser cutting technology, and particularly relates to a metal cutting machine. Background Technology

[0002] Casting is a common method for producing high-quality metal products. After casting, excess material usually needs to be cut off. For example, in sand casting, this is necessary. Figure 6 The gates, runners, and other gating systems on the inner wall of the large pipe shown are to be removed. Traditional production methods involve manual hand-held cutting equipment, which is labor-intensive.

[0003] Chinese Patent CN119870426A discloses a metal casting scrap removal device, including a cutting machine body. A lifting mechanism is arranged within the cutting cavity of the cutting machine body. A cutting mechanism for the metal casting gate is arranged at the movable end of the lifting mechanism. The cutting mechanism includes a mounting base, a diameter-changing assembly, several cutting components, and a rotating assembly. The mounting base is fixed to the movable end of the lifting mechanism and has a through cavity. The diameter-changing assembly includes a fixed ring disposed on the through cavity. Several vertical plates are arranged in a ring-shaped, equally spaced structure below the fixed ring. An adjusting ring is rotatably connected to the fixed ring. The rotating assembly includes an external toothed ring B, rotatably disposed on the outer edge of the adjusting ring. An internal toothed groove is formed on the inner edge of the external toothed ring B. The cutting components include cutting parts, with several cutting parts respectively disposed at the bottom ends of several vertical plates. The input ends of the cutting parts and the internal toothed grooves are all connected via a diameter-changing transmission part. The several vertical plates can move simultaneously centripetally or eccentrically, allowing the size of the cutting cavity formed by the several cutting components to be changed.

[0004] Although the above structure can change the size of the cutting cavity formed by several cutting components, enabling the cutting device to adapt to the cutting of risers and gatings of metal castings of different sizes, its structure is relatively complex, the equipment cost is high, and once the diameter changing function fails, it requires a long time to inspect and repair.

[0005] To solve the above problems, a new type of cutting device is needed. Summary of the Invention

[0006] The purpose of this invention is to provide a metal cutting machine with a simple structure that reduces equipment and maintenance costs.

[0007] To achieve the above objectives, the present invention provides a metal cutting machine, including a cutting table. A frame is fixedly connected to one side of the top surface of the cutting table. A lifting plate connected to a lifting drive assembly is provided on the vertical side plate of the frame. A rotating plate driven by a rotation drive assembly is connected to a through hole in the lifting plate. A plurality of cutting heads, each corresponding to a diameter-changing assembly, are provided below the rotating plate. The plurality of cutting heads are arranged in a circular array. The center point of the circular array of cutting heads is on the same vertical line as the central axis of the rotating plate. The diameter-changing assembly includes a mounting rod, a lifting ring, and a transmission rod. The top end of the mounting rod is rotatably connected to the bottom surface of the rotating plate, and the bottom end of the mounting rod is connected to the cutting head. The lifting ring is coaxially disposed below the rotating plate and is connected to a lifting adjustment component fixedly connected to the rotating plate. The two ends of the transmission rod are rotatably connected to the mounting rod and the lifting ring, respectively.

[0008] Preferably, the cutting head is connected to the main unit of the cutting equipment via a pipeline, and the main unit of the cutting equipment is fixedly connected to the top plate of the frame. Both the top plate and the rotating plate are provided with through holes corresponding to the pipeline. The cutting head is a laser cutting gun head or a plasma cutting gun head.

[0009] Preferably, the mounting rod includes a straight rod and a flexible deformation tube that are detachably connected at the top and bottom, and the bottom end of the flexible deformation tube is detachably connected to the cutting head.

[0010] Preferably, the top end of the transmission rod is rotatably connected to a first fixed shaft fixedly connected to the lifting ring, the bottom end of the transmission rod is rotatably connected to a second fixed shaft fixedly connected to the mounting rod, and the top end of the mounting rod is rotatably connected to a third fixed shaft fixedly connected to the rotating plate. The first fixed shaft, the second fixed shaft, and the third fixed shaft on the same diameter-changing assembly are parallel to each other, and the first fixed shaft is parallel to the tangent on the curved sidewall of the lifting ring.

[0011] Preferably, the lifting drive assembly includes a vertical groove formed on the vertical side plate, a threaded rod rotatably connected in the vertical groove, the top end of the threaded rod being drivenly connected to a first motor, a slider threadedly connected to the threaded rod, the slider being slidably connected in the vertical groove, and one end of the slider extending out of the vertical groove and fixedly connected to the lifting plate.

[0012] Preferably, a height position sensor is fixedly connected to the bottom surface of the lifting plate and is disposed opposite to the cutting table, and the lifting adjustment component, the height position sensor and the first motor are all connected to the controller.

[0013] Preferably, the rotary drive assembly includes teeth evenly distributed circumferentially on the curved sidewall of the rotating plate, the teeth meshing with a drive gear, and the drive gear being driven by a second motor fixedly connected to the lifting plate.

[0014] Preferably, the lifting adjustment component is a hydraulic telescopic rod or an electric telescopic rod fixedly connected to the rotating plate, and the bottom end of the telescopic part of the lifting adjustment component passes through the rotating plate and is fixedly connected to the lifting ring.

[0015] Preferably, the cutting table is provided with a lifting rod located directly below the lifting ring. The bottom end of the lifting rod is connected to a lifting power source located inside the cutting table. The cutting table is provided with four positioning components arranged in a rectangular array around the lifting rod. Each positioning component includes a fixed base, and a telescopic power source is fixedly connected to the fixed base. The telescopic power source is connected to the positioning rod and drives the positioning rod to move closer to or away from the lifting rod. The line connecting two oppositely arranged positioning rods intersects the central axis of the lifting rod.

[0016] Therefore, the metal cutting machine of the present invention with the above structure has the following beneficial effects: The variable diameter assembly, consisting of a mounting rod, lifting ring, transmission rod, and lifting adjustment component, can adjust the radius of the annular array formed by multiple cutting heads, thus enabling this metal cutting machine to adapt to the cutting of risers and gatings of metal castings of different sizes. At the same time, the variable diameter assembly has a simple structure, and the operator can directly observe its operating status, which is convenient for inspection and maintenance. The mounting rod, composed of a straight rod and a flexible deformation tube, can improve the flexibility of the cutting head position and allow the operator to adjust the orientation of the cutting head as needed, thereby improving the accuracy of the cutting position. The rotating plate is driven to rotate by a rotary drive assembly. The rotating plate drives the cutting head, lifting adjustment component, mounting rod, lifting ring and transmission rod to rotate synchronously. After the cutting head rotates, it can cut off the risers and gates of different thicknesses. The positioning component allows the pipe placed on the cutting table to be moved to a position coaxial with the lifting ring. The lifting rod can be used to lift the cut-off gating and riser, making it easier for workers to remove the gating and riser.

[0017] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of a metal cutting machine according to the present invention; Figure 2 This is a schematic diagram of the structure of another embodiment of a metal cutting machine according to the present invention; Figure 3 This is a schematic diagram of an embodiment of a lifting drive assembly in a metal cutting machine according to the present invention; Figure 4 This is a schematic diagram of an embodiment of a diameter-changing component in a metal cutting machine according to the present invention; Figure 5 This is a schematic diagram of the structure of a transmission rod in a metal cutting machine according to an embodiment of the present invention; Figure 6 The pipe is a cast pipe as mentioned in the background art.

[0019] In the diagram: 1. Cutting table; 2. Frame; 21. Vertical side plate; 22. Top plate; 3. Lifting drive assembly; 31. Vertical groove; 32. Threaded rod; 33. First motor; 34. Slider; 4. Lifting plate; 5. Rotary drive assembly; 51. Gear; 52. Drive gear; 53. Second motor; 6. Rotating plate; 7. Variable diameter assembly; 71. Mounting rod; 711. Straight rod; 712. Flexible deformable tube; 72. Lifting ring; 73. Transmission rod; 74. Lifting adjustment component; 8. Cutting head; 9. Perforation; 10. First fixed shaft; 11. Second fixed shaft; 12. Third fixed shaft; 13. Height position sensor; 14. Lifting top rod; 15. Positioning assembly; 151. Fixed seat; 152. Telescopic power source; 153. Positioning rod; 16. Pipe; 17. Sprue and riser; 18. Main unit of cutting equipment. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Example Reference Figures 1-5As shown, this embodiment provides a metal cutting machine, including a cutting table 1. A frame 2 is fixedly connected to one side of the top surface of the cutting table 1. A lifting plate 4 connected to a lifting drive assembly 3 is provided on the vertical side plate 21 of the frame 2. A rotating plate 6 driven to rotate by a rotation drive assembly 5 is connected to the through hole of the lifting plate 4. Several cutting heads 8 are provided below the rotating plate 6, each corresponding to a diameter changing assembly 7. The several cutting heads 8 are arranged in a circular array, and the center point of the circular array of cutting heads 8 is on the same vertical line as the central axis of the rotating plate 6. The diameter changing assembly 7 includes a mounting rod 71, a lifting ring 72, and a transmission rod 73. The top end of the mounting rod 71 is rotatably connected to the bottom surface of the rotating plate 6, and the bottom end of the mounting rod 71 is connected to the cutting head 8. The lifting ring 72 is coaxially arranged below the rotating plate 6 and is connected to a lifting adjustment member 74 fixedly connected to the rotating plate 6. The two ends of the transmission rod 73 are rotatably connected to the mounting rod 71 and the lifting ring 72, respectively.

[0023] In use, the cast pipe 16 is placed on the cutting table 1, and the central axis of the pipe 16 and the central axis of the lifting ring 72 are aligned. Then, according to the inner diameter of the pipe 16, the height of the lifting ring 72 is adjusted using the lifting adjustment component 74, so that the transmission rod 73 rotates closer to or further away from the lifting ring 72 with the mounting rod 71, thereby adjusting the distance between each cutting head 8 and moving each cutting head 8 to a suitable horizontal position. Then, the lifting drive component 3 is activated to drive the entire lifting plate 4 and the cutting head 8 to descend, so that the cutting head 8 moves to a suitable height position to adapt to the cutting of the riser 17 on the inner wall of the pipe 16. At the same time, the switch on the cutting head 8 and the rotation drive component 5 are activated, so that the drive plate 6 and the cutting head 8 rotate synchronously, thereby enabling the cutting head 8 to cut off the riser 17 on the inner wall of the pipe 16. After the riser 17 is cut off, the lifting drive component 3 drives the entire lifting plate 4 to reset for the next use.

[0024] In a further optimized design, the cutting head 8 is connected to the main unit 18 of the cutting equipment via a pipeline (not shown). The main unit 18 of the cutting equipment is fixedly connected to the top plate 22 of the frame 2. Both the top plate 22 and the rotating plate 6 are provided with through holes 9 corresponding to the pipeline. The cutting head 8 is a laser cutting gun head or a plasma cutting gun head.

[0025] In use, the rotary drive assembly 5 drives the rotating plate 6 to reciprocate at a certain angle to avoid tangling of the pipeline. The main unit 18 of the cutting equipment is placed on the top plate 22 instead of the lifting plate 4, which reduces the energy consumption during the lifting and moving of the lifting plate 4. The pipeline can be tied to the mounting rod 71 by several straps distributed along the length of the mounting rod 71 to avoid tangling and knotting of the pipeline.

[0026] In a further optimized design, the mounting rod 71 includes a straight rod 711 and a flexible deformable tube 712 that are detachably connected vertically. The detachable connection between the straight rod 711 and the flexible deformable tube 712 reduces the maintenance cost of the mounting rod 71. The bottom end of the flexible deformable tube 712 is detachably connected to the cutting head 8, which facilitates the disassembly, inspection, and replacement of the cutting head 8.

[0027] In use, the flexible deformable tube 712 can be a Pricas tube. The flexible deformable tube 712 can improve the flexibility of the cutting head 8 position and also allow the operator to adjust the orientation of the cutting head 8 as needed, thereby improving the accuracy of the cutting position. The detachable connection method between the flexible deformable tube 712 and the cutting head 8 is not shown in the figure. It can be that a connector is fixedly connected to the housing of the cutting head 8 (such as a screw connection). The connector is connected to the flexible deformable tube 712 through a flange, clamp, or thread.

[0028] In a further optimized design, the top end of the transmission rod 73 is rotatably connected to the first fixed shaft 10 fixedly connected to the lifting ring 72, the bottom end of the transmission rod 73 is rotatably connected to the second fixed shaft 11 fixedly connected to the mounting rod 71, and the top end of the mounting rod 71 is rotatably connected to the third fixed shaft 12 fixedly connected to the rotating plate 6. The first fixed shaft 10, the second fixed shaft 11, and the third fixed shaft 12 on the same diameter-changing assembly 7 are parallel to each other, and the first fixed shaft 10 is parallel to the tangent on the curved sidewall of the lifting ring 72. The positional setting of the first fixed shaft 10, the second fixed shaft 11, and the third fixed shaft 12 defines the rotation direction of the mounting rod 71, thereby ensuring that each cutting head 8 is always located on the same circumference.

[0029] In use, the first fixed shaft 10 is detachably connected to the lifting ring 72, the second fixed shaft 11 is detachably connected to the mounting rod 71, which facilitates the disassembly and replacement of the transmission rod 73, and the third fixed column is detachably connected to the rotating plate 6, which facilitates the disassembly and replacement of the mounting rod 71.

[0030] In a further preferred embodiment, the lifting drive assembly 3 includes a vertical groove 31 formed on the vertical side plate 21, a threaded rod 32 rotatably connected in the vertical groove 31, the top end of the threaded rod 32 being drivenly connected to the first motor 33, a slider 34 threadedly connected to the threaded rod 32, the slider 34 being slidably connected in the vertical groove 31, and one end of the slider 34 extending out of the vertical groove 31 and being fixedly connected to the lifting plate 4.

[0031] In use, the first motor 33 drives the threaded rod 32 to rotate. After the threaded rod 32 rotates, it can drive the slider 34 to rise and fall in the vertical groove 31. After the slider 34 rises, it can drive the lifting plate 4 to rise. After the slider 34 falls, it can drive the lifting plate 4 to fall.

[0032] Furthermore, a height position sensor 13 is fixedly connected to the bottom surface of the lifting plate 4, which is opposite to the cutting table 1. The lifting adjustment component 74, the height position sensor 13, and the first motor 33 are all connected to the controller.

[0033] In use, the switch of the cutting head 8 and the second motor 53 on the rotary drive assembly 5 can be electrically connected to the controller. The controller can control the lifting adjustment component 74 to drive the lifting ring 72 to lift and lower, and change the angle of the mounting rod 71, so that the distance between each cutting head 8 is adapted to the size of the riser 17 on the pipe 16 to be cut. The height position sensor 13 can detect the distance between the lifting plate 4 and the cutting table 1 and transmit this distance to the controller. The controller controls the first motor 33 to rotate according to this distance and the lifting distance of the lifting ring 72, so that the lifting plate 4 moves to a suitable height, and thus the cutting head 8 moves to a suitable height when cutting. After the lifting plate 4 moves to the suitable position, the controller controls the switch of the cutting head 8 and the second motor 53 to start at the same time to realize the cutting of the riser 17.

[0034] In a further preferred embodiment, the rotary drive assembly 5 includes teeth 51 evenly distributed circumferentially on the curved sidewall of the rotating plate 6. The teeth 51 mesh with the drive gear 52, and the drive gear 52 is connected to the second motor 53 fixedly connected to the lifting plate 4.

[0035] In use, the second motor 53 drives the drive gear 52 to rotate, and the drive gear 52 drives the teeth 51 to drive the rotating plate 6 to rotate. After the rotating plate 6 rotates, the cutting head 8, the lifting adjustment component 74, the mounting rod 71, the lifting ring 72 and the transmission rod 73 rotate synchronously with the rotating plate 6.

[0036] In a further optimized design, the lifting adjustment component 74 is a hydraulic or electric telescopic rod fixedly connected to the rotating plate 6, and the bottom end of the telescopic part of the lifting adjustment component 74 passes through the rotating plate 6 and is fixedly connected to the lifting ring 72.

[0037] In use, the lifting adjustment component 74 can drive the lifting ring 72 to rise and fall, thereby adjusting the angle of the mounting rod 71 and ultimately adjusting the position of each cutting head 8.

[0038] In a further optimized design, the cutting table 1 is equipped with a lifting rod 14 located directly below the lifting ring 72. The bottom end of the lifting rod 14 is connected to a lifting power source located within the cutting table 1, which can be a hydraulic cylinder. Around the cutting table 1, four positioning components 15 are arranged in a rectangular array centered on the lifting rod 14. Each positioning component 15 includes a fixed base 151, on which a telescopic power source 152 is fixedly connected. The telescopic power source 152 can also be a hydraulic cylinder. The telescopic power source 152 connects to a positioning rod 153, driving the positioning rod 153 to move closer to or away from the lifting rod 14. The line connecting two opposing positioning rods 153 intersects the central axis of the lifting rod 14.

[0039] In use, four telescopic power sources 152 drive the positioning rod 153 to move close to the lifting rod 14, allowing the pipe 16 placed on the cutting table 1 to move to a position coaxial with the lifting ring 72. The lifting power source can drive the lifting rod 14 to rise and fall. After the lifting rod 14 rises, it can lift the cut-off gating and riser 17, making it easier for workers to remove the gating and riser 17. After the lifting rod 14 falls, it can be reset.

[0040] Therefore, the metal cutting machine of the present invention, which adopts the above structure, has a simple structure and low equipment and maintenance costs.

[0041] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0042] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A metal cutting machine, characterized in that: The system includes a cutting table (1), with a frame (2) fixedly connected to one side of the top surface of the cutting table (1). A lifting plate (4) connected to a lifting drive assembly (3) is provided on the vertical side plate (21) of the frame (2). A rotating plate (6) driven to rotate by a rotation drive assembly (5) is connected in the through hole of the lifting plate (4). Several cutting heads (8) are provided below the rotating plate (6) and are connected to the diameter changing assembly (7) one by one. The several cutting heads (8) are arranged in a ring array. The center point of the ring array of cutting heads (8) is located on the same axis as the center of the rotating plate (6). In a vertical line, the variable diameter assembly (7) includes a mounting rod (71), a lifting ring (72), and a transmission rod (73). The top end of the mounting rod (71) is rotatably connected to the bottom surface of the rotating plate (6), and the bottom end of the mounting rod (71) is connected to the cutting head (8). The lifting ring (72) is coaxially arranged below the rotating plate (6), and the lifting ring (72) is connected to a lifting adjustment component (74) fixedly connected to the rotating plate (6). The two ends of the transmission rod (73) are rotatably connected to the mounting rod (71) and the lifting ring (72) respectively.

2. The metal cutting machine according to claim 1, characterized in that: The cutting head (8) is connected to the main body of the cutting equipment (18) through a pipeline. The main body of the cutting equipment (18) is fixedly connected to the top plate (22) of the frame (2). The top plate (22) and the rotating plate (6) are provided with through holes (9) corresponding to the pipeline. The cutting head (8) is a laser cutting gun head or a plasma cutting gun head.

3. The metal cutting machine according to claim 1, characterized in that: The mounting rod (71) includes a straight rod (711) and a flexible deformation tube (712) that are detachably connected at the top and bottom. The bottom end of the flexible deformation tube (712) is detachably connected to the cutting head (8).

4. The metal cutting machine according to claim 1, characterized in that: The top end of the transmission rod (73) is rotatably connected to the first fixed shaft (10) fixedly connected to the lifting ring (72), the bottom end of the transmission rod (73) is rotatably connected to the second fixed shaft (11) fixedly connected to the mounting rod (71), and the top end of the mounting rod (71) is rotatably connected to the third fixed shaft (12) fixedly connected to the rotating plate (6). The first fixed shaft (10), the second fixed shaft (11) and the third fixed shaft (12) on the same diameter-changing assembly (7) are parallel to each other, and the first fixed shaft (10) is parallel to the tangent on the curved sidewall of the lifting ring (72).

5. The metal cutting machine according to claim 1, characterized in that: The lifting drive assembly (3) includes a vertical groove (31) opened on the vertical side plate (21), a threaded rod (32) is rotatably connected in the vertical groove (31), the top end of the threaded rod (32) is connected to the first motor (33) for transmission, a slider (34) is threadedly connected on the threaded rod (32), the slider (34) is slidably connected in the vertical groove (31), and one end of the slider (34) extends out of the vertical groove (31) and is fixedly connected to the lifting plate (4).

6. The metal cutting machine according to claim 5, characterized in that: The bottom surface of the lifting plate (4) is fixedly connected to a height position sensor (13) that is opposite to the cutting table (1). The lifting adjustment component (74), the height position sensor (13) and the first motor (33) are all connected to the controller.

7. The metal cutting machine according to claim 1, characterized in that: The rotary drive assembly (5) includes teeth (51) evenly distributed circumferentially on the curved sidewall of the rotating plate (6), the teeth (51) meshing with the drive gear (52), and the drive gear (52) being connected to a second motor (53) fixedly connected to the lifting plate (4).

8. The metal cutting machine according to claim 1, characterized in that: The lifting adjustment component (74) is a hydraulic telescopic rod or an electric telescopic rod fixedly connected to the rotating plate (6). The bottom end of the telescopic part of the lifting adjustment component (74) passes through the rotating plate (6) and is fixedly connected to the lifting ring (72).

9. The metal cutting machine according to claim 1, characterized in that: The cutting table (1) is provided with a lifting rod (14) located directly below the lifting ring (72). The bottom end of the lifting rod (14) is connected to a lifting power source located inside the cutting table (1). The cutting table (1) is provided with four positioning components (15) arranged in a rectangular array around the lifting rod (14). The positioning component (15) includes a fixed seat (151). A telescopic power source (152) is fixedly connected to the fixed seat (151). The telescopic power source (152) is connected to the positioning rod (153) to drive the positioning rod (153) to move closer to or away from the lifting rod (14). The line connecting the two positioning rods (153) arranged opposite to each other intersects the central axis of the lifting rod (14).

Images