A cutting device for riser production

Abstract

This utility model relates to the field of machining equipment technology and discloses a cutting device for riser production, including a worktable and a workpiece. A square box is fixedly connected to the top right side of the worktable. A connecting rod is rotatably connected to the inner wall of the square box. A handwheel is fixedly connected to the front end of the connecting rod, and a worm gear is fixedly connected to the rear end of the connecting rod. A rotating shaft is rotatably connected to the inner wall of the square box, and a worm wheel is fixedly connected to the outside of the rotating shaft. The outside of the worm wheel is meshed with the outside of the worm gear. A rotating rod is fixedly connected to the left end of the rotating shaft. In this utility model, the workpiece can be adjusted at any angle to meet complex cutting requirements. At the same time, the multi-link clamping mechanism driven by the electric push rod can form a uniform clamping force on the inner wall of workpieces of different sizes, avoiding shaking during cutting. This design combines the angle adjustment accuracy with the workpiece clamping stability, improving processing accuracy.

Description

Technical Field

[0001] This utility model relates to the field of mechanical processing equipment technology, and in particular to a cutting device for riser production. Background Technology

[0002] A riser is a cavity structure placed inside the mold during the casting process to store molten metal. During casting, the molten metal shrinks in volume as it cools and solidifies. Without additional molten metal to replenish it, defects such as shrinkage cavities and porosity will appear inside the casting. The function of the riser is to continuously supply molten metal to the casting during solidification to compensate for shrinkage, ensure a dense internal structure, and improve the quality of the casting.

[0003] Once the casting has solidified, the riser has fulfilled its purpose. At this point, the riser becomes redundant, not only increasing the weight of the casting and raising material costs, but also affecting its appearance and subsequent machining. For example, in machining processes, the presence of a riser occupies space on the machining equipment, affects the normal cutting path of the tool, and increases machining difficulty and time. Therefore, in order to obtain casting dimensions that meet design requirements, reduce costs, and facilitate subsequent machining, the riser needs to be cut off from the casting.

[0004] In the existing technology, the workpiece positioning and angle adjustment functions of some riser cutting equipment are independent of each other, which makes it difficult to guarantee the cutting accuracy. Some devices use manual clamps to fix the riser, which not only causes uneven clamping force distribution and easy workpiece deformation, but also makes it impossible to achieve multi-angle cutting. Therefore, a cutting device for riser production is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a cutting device for riser production, which aims to improve the problems of independent workpiece positioning and angle adjustment functions, poor cutting accuracy, uneven clamping force of manual clamps that are prone to deformation and cannot cut at multiple angles in the existing riser cutting equipment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A cutting device for riser production includes a worktable and a workpiece. A square box is fixedly connected to the top right side of the worktable. A connecting rod is rotatably connected to the inner wall of the square box. A hand crank is fixedly connected to the front end of the connecting rod, and a worm gear is fixedly connected to the rear end of the connecting rod. A rotating shaft is rotatably connected to the inner wall of the square box. A worm wheel is fixedly connected to the outside of the rotating shaft. The outside of the worm wheel is meshed with the outside of the worm gear. A rotating rod is fixedly connected to the left end of the rotating shaft. A plasma cutter is installed on the top left side of the worktable. A fixing component for fixing the workpiece is provided on the left end of the rotating rod. A collection component for collecting waste is provided at the bottom end of the worktable.

[0008] As a further description of the above technical solution:

[0009] The outer wall of the rotating rod is rotatably connected to the inner wall of the square box, and a support base is fixedly connected to the top of the workbench. The outer wall of the rotating rod is rotatably connected to the inner wall of the support base.

[0010] As a further description of the above technical solution:

[0011] The fixing component includes a disc, the right end of which is fixedly connected to the left end of the rotating rod. A fixing block is fixedly connected to the left end of the disc. An electric push rod is fixedly connected inside the fixing block. A cylindrical block is fixedly connected to the driving end of the electric push rod. Multiple protruding plates are fixedly connected to the outside of the cylindrical block. A transmission plate is rotatably connected to the inner wall of the protruding plate. A rotating block is rotatably connected to the side of the transmission plate away from the protruding plate. A pressure plate is fixedly connected to the opposite side of each of the multiple rotating blocks.

[0012] As a further description of the above technical solution:

[0013] The opposite sides of the plurality of pressure plates are in contact with the inner wall of the workpiece, and a riser is provided at the left end of the workpiece;

[0014] As a further description of the above technical solution:

[0015] The fixed block has multiple grooves on its exterior, and auxiliary plates are rotatably connected to the inner walls of the grooves. The multiple auxiliary plates are rotatably connected to the adjacent sides of the multiple pressure plates on opposite sides.

[0016] As a further description of the above technical solution:

[0017] The collection assembly includes a receiving box, the top of which is fixedly connected to the bottom of the workbench, a cylinder is fixedly connected to the right end of the receiving box, a push plate is fixedly connected to the drive end of the cylinder, and multiple cleaning brushes are fixedly connected to the bottom end of the push plate.

[0018] As a further description of the above technical solution:

[0019] The top of the workbench is provided with a discharge port, the top side of the receiving box is in contact with the bottom side of the discharge port, and a collection box is provided on the bottom side of the receiving box, which is placed on the ground.

[0020] As a further description of the above technical solution:

[0021] Guide plates are fixedly connected to the inner walls of the front and rear sides of the receiving box. The outer wall of the push plate is slidably connected to the outer walls of the two guide plates. The bottom sides of the multiple cleaning brushes are in contact with the bottom inner wall of the receiving box.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the transmission mechanism composed of a hand crank, connecting rod, worm gear, and worm wheel utilizes the deceleration characteristics of the worm gear to convert manual rotational motion into low-speed, precise rotation of the rotating rod, enabling the workpiece to be adjusted at any angle to meet complex cutting requirements. Simultaneously, in the multi-link clamping mechanism driven by the electric push rod, the cylindrical block, convex plate, transmission plate, and pressure plate work together, with the stable support of the auxiliary plate, to form a uniform clamping force on the inner wall of workpieces of different sizes, avoiding shaking during cutting. This design combines angle adjustment accuracy with workpiece clamping stability, significantly reducing the perpendicularity error of the cutting kerf and improving processing accuracy, especially suitable for multi-angle cutting of high-precision risers.

[0024] 2. In this utility model, the unloading port of the workbench is directly connected to the receiving box. The waste material is guided by its own weight without power, avoiding the accumulation of waste material that affects operation. After cutting, the cylinder drives the push plate to slide back and forth along the guide plate. The cleaning brush at the bottom of the push plate is in close contact with the inner wall and bottom of the receiving box, thoroughly cleaning the residual waste material into the collection box, improving the waste material processing efficiency. The closed waste material flow channel design effectively prevents dust from overflowing. Combined with the convenient replacement design of the collection box, the entire process of waste material collection and cleaning is automated, which greatly improves the workshop working environment and reduces labor intensity. Attached Figure Description

[0025] Figure 1 This is a perspective view of a cutting device for riser production proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of a square box for a cutting device used in riser production according to this utility model;

[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0028] Figure 4 for Figure 2Enlarged view of point B in the middle;

[0029] Figure 5 for Figure 2 Enlarged view of point C in the middle.

[0030] Legend:

[0031] 1. Workbench; 2. Square box; 3. Connecting rod; 4. Hand crank; 5. Worm gear; 6. Rotating shaft; 7. Worm wheel; 8. Rotating rod; 9. Support base; 10. Disc; 11. Fixed block; 12. Electric push rod; 13. Cylindrical block; 14. Convex plate; 15. Transmission plate; 16. Rotating block; 17. Pressure plate; 18. Workpiece; 19. Auxiliary plate; 20. Plasma cutter; 21. Receiving box; 22. Cylinder; 23. Push plate; 24. Cleaning brush; 25. Guide plate; 26. Collection box. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1 , Figure 2 and Figure 3This utility model provides an embodiment of a cutting device for riser production, including a workbench 1 and a workpiece 18. The workbench 1 serves as the foundation of the device, providing an installation plane for each component. A square box 2 is fixedly connected to the top right side of the workbench 1. The square box 2 protects the transmission mechanism from cutting dust through a closed structure. A connecting rod 3 is rotatably connected to the inner wall of the square box 2. A hand crank 4 is fixedly connected to the front end of the connecting rod 3, and a worm gear 5 is fixedly connected to the rear end of the connecting rod 3. The hand crank 4 is connected to the worm gear 5 through the connecting rod 3. When the operator rotates the hand crank 4, it drives the worm gear 5 to rotate. A rotating shaft 6 is rotatably connected to the inner wall of the square box 2. A worm wheel 7 is fixedly connected to the outside of the rotating shaft 6. The outside of the worm wheel 7 is meshed with the outside of the worm gear 5. A rotating rod 8 is fixedly connected to the left end of the rotating shaft 6. The outer wall of the rotating rod 8... The rotating rod 8 is rotatably connected to the inner wall of the square box 2. The top of the worktable 1 is fixedly connected to the support base 9. The outer wall of the rotating rod 8 is rotatably connected to the inner wall of the support base 9. The support base 9 and the square box 2 jointly support the rotating rod 8, forming a stable shaft system structure. The worm gear 5 meshes with the worm wheel 7, transmitting the rotational motion to the rotating shaft 6 to achieve fine-tuning of the angle. The rotating shaft 6 is fixed to the rotating rod 8, thereby driving the rotating rod 8 to rotate around the axis of the support base 9. A plasma cutting machine 20 is installed on the top left side of the worktable 1. The cutting head of the plasma cutting machine 20 is aligned with the riser position of the workpiece 18. It melts the metal by generating a high-temperature plasma flow and blows away the slag with a high-speed airflow to achieve efficient cutting. A fixing component for fixing the workpiece 18 is provided at the left end of the rotating rod 8. A collection component for collecting waste is provided at the bottom end of the worktable 1.

[0034] Reference Figure 1 , Figure 2 and Figure 4The fixing assembly includes the disc 10, the right end of which is fixedly connected to the left end of the rotating rod 8. The left end of the disc 10 is fixedly connected to a fixing block 11. The disc 10 connects the rotating rod 8 and the fixing block 11, transmitting rotational motion. An electric push rod 12 is fixedly connected inside the fixing block 11. The driving end of the electric push rod 12 is fixedly connected to a cylindrical block 13. The electric push rod 12 inside the fixing block 11 drives the cylindrical block 13 to move. A protruding plate 14 is fixedly connected to the outside of the cylindrical block 13. A transmission plate 15 is rotatably connected to the inner wall of the protruding plate 14. A rotating block 16 is rotatably connected to the side of the transmission plate 15 away from the protruding plate 14. A pressure plate 17 is fixedly connected to both sides. The opposite side of the pressure plate 17 is in contact with the inner wall of the workpiece 18. The rotating block 16 is driven to move outward by the transmission plate 15 in conjunction with the convex plate 14, so that the pressure plate 17 simultaneously presses against the inner wall of the workpiece 18. A riser is provided at the left end of the workpiece 18. Multiple grooves are provided on the outside of the fixing block 11. The inner wall of the groove is rotatably connected to the auxiliary plate 19. The opposite side of the auxiliary plate 19 is rotatably connected to the side close to the pressure plate 17. The auxiliary plate 19 is hinged between the fixing block 11 and the pressure plate 17 to ensure that the pressure plate 17 applies force evenly and to prevent the workpiece 18 from deforming due to uneven force, so as to achieve reliable clamping and positioning of the workpiece 18.

[0035] Reference Figure 1 , Figure 2 and Figure 5 The collection assembly includes a receiving box 21, the top of which is fixedly connected to the bottom of the workbench 1. The receiving box 21 receives cutting waste falling from the discharge port of the workbench 1, and its inclined inner wall facilitates the sliding of waste. A cylinder 22 is fixedly connected to the right end of the receiving box 21, and a push plate 23 is fixedly connected to the drive end of the cylinder 22. A cleaning brush 24 is fixedly connected to the bottom end of the push plate 23. A discharge port is provided on the top of the workbench 1 to guide the waste flow. The top side of the receiving box 21 contacts the bottom side of the discharge port. A collection box 26 is provided on the bottom side of the receiving box 21 and is placed on the ground. Placed independently on the ground, it facilitates centralized waste processing, enabling automatic waste collection and cleaning. Guide plates 25 are fixedly connected to the inner walls of both the front and rear sides of the receiving box 21. The outer wall of the push plate 23 is slidably connected to the outer wall of the guide plate 25. The guide plate 25 restricts the movement trajectory of the push plate 23, ensuring that the cleaning brush 24 is in close contact with the bottom of the receiving box 21, improving the cleaning effect. The bottom side of the cleaning brush 24 is in contact with the bottom inner wall of the receiving box 21. The cylinder 22 drives the push plate 23 to slide back and forth along the guide plate 25. The cleaning brush 24 at the bottom of the push plate 23 sweeps the residual waste in the receiving box 21 to the collection box 26.

[0036] Working principle: When the electric push rod 12 is started, its driving end pushes the cylindrical block 13 to move away from the fixed block 11, causing the convex plate 14 to rotate around its connection point with the cylindrical block 13. Then, through the transmission plate 15, the rotating block 16 is pulled outward, so that multiple pressure plates 17 simultaneously press against the inner wall of the workpiece 18. The auxiliary plate 19 provides rotational support when the pressure plates 17 move, ensuring that the clamping force is evenly distributed. If it is necessary to adjust the cutting angle of the workpiece 18, the hand crank 4 is turned to drive the connecting rod 3 and the worm gear 5 to rotate. The worm gear 5 meshes with the worm wheel 7 to drive the rotating shaft 6 to rotate, so that the rotating rod 8 fixed at the left end of the rotating shaft 6 rotates around the axis of the support seat 9, driving the disc 10 and the workpiece 18 to rotate synchronously to the target angle. Then, the riser workpiece 18 is cut using the plasma cutting machine 20.

[0037] The waste generated when the plasma cutting machine 20 cuts the riser at the left end of the workpiece 18 falls into the receiving box 21 through the discharge port at the top of the worktable 1. After the cutting is completed, the cylinder 22 drives the push plate 23 to slide back and forth along the guide plate 25. The cleaning brush 24 at the bottom of the push plate 23 sweeps the waste remaining on the inner wall and bottom of the receiving box 21 into the collection box 26. The guide plate 25 restricts the movement trajectory of the push plate 23 to ensure that the cleaning brush 24 is completely in contact with the bottom of the receiving box 21, thus avoiding the accumulation of waste. The collection box 26 is placed independently on the ground for convenient centralized processing of waste, thereby realizing the automatic collection and cleaning of cutting waste, reducing manual intervention and improving the cleanliness of the working environment.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cutting device for riser production, comprising a worktable (1) and a workpiece (18), characterized in that: A square box (2) is fixedly connected to the top right side of the workbench (1). A connecting rod (3) is rotatably connected to the inner wall of the square box (2). A hand crank (4) is fixedly connected to the front end of the connecting rod (3). A worm gear (5) is fixedly connected to the rear end of the connecting rod (3). A rotating shaft (6) is rotatably connected to the inner wall of the square box (2). A worm wheel (7) is fixedly connected to the outside of the rotating shaft (6). The outside of the worm wheel (7) is meshed with the outside of the worm gear (5). A rotating rod (8) is fixedly connected to the left end of the rotating shaft (6). A plasma cutter (20) is installed on the top left side of the workbench (1). A fixing component for fixing the workpiece (18) is provided on the left end of the rotating rod (8). A collection component for collecting waste is provided at the bottom end of the workbench (1).

2. The cutting device for riser production according to claim 1, characterized in that: The outer wall of the rotating rod (8) is rotatably connected to the inner wall of the square box (2), and a support base (9) is fixedly connected to the top of the workbench (1). The outer wall of the rotating rod (8) is rotatably connected to the inner wall of the support base (9).

3. The cutting device for riser production according to claim 1, characterized in that: The fixing assembly includes a disc (10), the right end of which is fixedly connected to the left end of the rotating rod (8), and a fixing block (11) is fixedly connected to the left end of the disc (10). An electric push rod (12) is fixedly connected inside the fixing block (11), and a cylindrical block (13) is fixedly connected to the driving end of the electric push rod (12). Multiple protruding plates (14) are fixedly connected to the outside of the cylindrical block (13). A transmission plate (15) is rotatably connected to the inner wall of the protruding plate (14). A rotating block (16) is rotatably connected to the side of the transmission plate (15) away from the protruding plate (14). A pressure plate (17) is fixedly connected to the opposite side of each of the multiple rotating blocks (16).

4. The cutting device for riser production according to claim 3, characterized in that: The opposite sides of the plurality of pressure plates (17) are in contact with the inner wall of the workpiece (18), and a riser is provided at the left end of the workpiece (18).

5. A cutting device for riser production according to claim 3, characterized in that: The fixed block (11) has multiple grooves on its outside, and the inner wall of the groove is rotatably connected to an auxiliary plate (19). The multiple auxiliary plates (19) are rotatably connected to the adjacent side of the multiple pressure plates (17) on opposite sides.

6. A cutting device for riser production according to claim 1, characterized in that: The collection assembly includes a receiving box (21), the top of which is fixedly connected to the bottom of the workbench (1), a cylinder (22) is fixedly connected to the right end of the receiving box (21), a push plate (23) is fixedly connected to the drive end of the cylinder (22), and a plurality of cleaning brushes (24) are fixedly connected to the bottom end of the push plate (23).

7. A cutting device for riser production according to claim 6, characterized in that: The top of the workbench (1) is provided with a discharge port, the top side of the receiving box (21) is in contact with the bottom side of the discharge port, and a collection box (26) is provided on the bottom side of the receiving box (21), and the collection box (26) is placed on the ground.

8. A cutting device for riser production according to claim 6, characterized in that: The inner walls of the front and rear sides of the receiving box (21) are fixedly connected with guide plates (25), the outer wall of the push plate (23) is slidably connected to the outer wall of the two guide plates (25), and the bottom sides of the multiple cleaning brushes (24) are in contact with the bottom inner wall of the receiving box (21).

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