High speed sawing device for aluminum alloy casting ingates

Abstract

The application provides a high-speed sawing device for aluminum alloy casting pouring riser, and belongs to the technical field of aluminum alloy processing. The device comprises an operation table, a top frame fixedly connected to the top of the operation table, a bottom frame fixedly connected to the inside of the operation table, a driving wheel driven by a first motor installed in the inside of the bottom frame, a driven wheel installed in the inside of the top frame, and a saw blade connecting the driving wheel and the driven wheel. A clamping assembly for clamping the workpiece is arranged on the top of the operation table. The clamping assembly, the trigger assembly and the air blowing assembly are cooperated with each other, so that the stability and precision of the workpiece cutting can be ensured, the processing efficiency and the automation degree are improved, the manual operation link is reduced, the service life of the equipment is prolonged, and the stability and integrity of the workpiece processing of the device are improved.

Description

Technical Field

[0001] This invention relates to the field of aluminum alloy processing technology, and in particular to a high-speed sawing processing device for the gating and riser of aluminum alloy castings. Background Technology

[0002] Aluminum alloy castings typically require gating and riser systems (including runners, risers, and other components of the gating system) during the casting process. Their main purpose is to ensure that the mold cavity is smoothly filled by molten metal and to compensate for metal shrinkage during solidification. After pouring, the gating and riser system is integrated with the main body of the casting and is often placed on the edge, protrusion, or in a position that facilitates venting. In order to ensure the smooth progress of the casting's geometry, surface quality, and subsequent processing (such as finishing, assembly, heat treatment, or surface treatment), the gating and riser system must be removed. Removing the gating and riser system can also eliminate local uneven mass distribution and stress concentration, avoiding affecting the performance and assembly fit. Therefore, gating and riser removal is a necessary post-processing step for aluminum alloy castings.

[0003] In the prior art, Chinese patent document CN109663981A discloses a device for cutting the gating system of aluminum alloy castings. This device includes a cylinder, a lifting rod, a connecting rod, a slider, and anti-slip textures. A connecting rod is mounted on the right end of the cylinder, and cylinder 1 is fixed to the right end of the connecting rod. A lifting rod is mounted on the lower end of the cylinder, and a cutting blade is mounted on the lower end of the lifting rod. A handle is mounted on the left end of the connecting rod. A groove is provided on the upper end of the worktable, and several ventilation holes are provided. While this technology facilitates the fixing of castings, offers high cutting precision, good vibration damping, a simple structure, and convenient operation, it shares a common characteristic with traditional methods: in existing aluminum alloy casting gating system sawing methods, the workpiece body is usually larger than... The presence of a riser or gating system results in the riser being suspended during the cutting process. When the riser or gating system is cut halfway through, its own weight pulls on the incompletely cut edge, causing workpiece wobbling and riser or gating system misalignment. This makes it difficult for the saw blade to maintain a tight fit with the workpiece and riser or gating system during cutting, easily leading to chipping at the cut edge and resulting in incomplete workpiece cut edges. At the same time, a large amount of debris is generated during high-speed sawing. If not cleaned in time, the debris will accumulate in the cutting area, affecting not only the stability of the saw blade's operation but also reducing cutting accuracy. Therefore, it is clear that the existing processing method has shortcomings in terms of finished product quality and processing stability. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a high-speed sawing processing device for the gating and riser of aluminum alloy castings to solve the problems in the existing sawing method for the gating and riser of aluminum alloy castings, which is prone to workpiece shaking, edge chipping and reduced cutting accuracy because the gating and riser are suspended in the air during the cutting process and are easily pulled by their own weight.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A high-speed sawing device for machining the gating system of aluminum alloy castings includes an operating table. A top frame is fixedly connected to the top of the operating table, and a base frame is fixedly connected inside the operating table. A drive wheel driven by a first motor is installed inside the base frame, and a driven wheel is installed inside the top frame. The drive wheel is connected to the driven wheel via a saw blade. A clamping assembly for clamping the workpiece is provided on the top of the operating table. The clamping assembly includes a placement plate and a second limiting plate slidably connected to the top of a first slide rail and a second slide rail, respectively. The placement plate and the second limiting plate are located on both sides of the saw blade. The first slide rail and the second slide rail are installed on the top of the operating table. A second side plate and a first limiting plate are fixedly connected to the top of both ends of the placement plate, respectively. A connecting plate is fixedly connected to one side of the placement plate. A first side plate is fixedly connected to the top of the connecting plate. A first connecting rod is slidably connected inside the first limiting plate. A first abutment is fixedly connected to one end of the first connecting rod. The position of the first abutment corresponds to the position of the second side plate. A second connecting rod is slidably connected inside the second limiting plate. A second abutment is fixedly connected to one end of the second connecting rod. The position of the second abutment corresponds to the position of the first side plate. A triggering component is provided on the top of the operating table for automatic clamping and automatic unloading of the workpiece during movement. An air blowing component is provided inside the operating table for cleaning debris. The clamping component, triggering component, and air blowing component cooperate with each other to achieve synchronous clamping of the workpiece and the riser, automatic unloading after cutting, and automatic cleaning of the cutting area.

[0007] Optionally, an L-shaped plate is fixedly connected to one end of the second limiting plate, and the end of the L-shaped plate away from the second limiting plate passes around the outside of the saw blade and is fixedly connected to one end of the second side plate. A protective box is fixedly connected to one side of the top of the operating table, and a second motor is installed at one end of the protective box. A screw is rotatably connected inside the protective box, and a slider is threadedly connected to the outside of the screw. The top of the slider passes through the top of the protective box and is fixedly connected to the end of the connecting plate away from the placement plate.

[0008] Optionally, rubber pads are installed on one side of the first side plate, the second side plate, the first abutment plate, and the second abutment plate, and the position of the second abutment plate corresponds to the position of the workpiece riser. A second spring is sleeved on the outside of one end of the first connecting rod. One end of the second spring is fixedly connected to one side of the first abutment plate, and the other end of the second spring is fixedly connected to one side of the first limiting plate. A third spring is sleeved on the outside of one end of the second connecting rod. One end of the third spring is fixedly connected to one side of the second abutment plate, and the other end of the third spring is fixedly connected to one side of the second limiting plate.

[0009] Optionally, the triggering assembly includes an L-shaped rod fixedly connected to the top of the second abutment and a connecting cylinder fixedly connected to the bottom of one end of the first connecting rod. A pulley is installed at the end of the L-shaped rod away from the second abutment. A second trapezoidal block and a third trapezoidal block are fixedly connected to the top of both ends of the operating table, respectively. The second trapezoidal block is located at the initial position before the workpiece moves, and the third trapezoidal block is located at the termination position after the workpiece moves. When the pulley moves along the hypotenuse of the second trapezoidal block to the short side of the second trapezoidal block, the third spring is compressed to 40%-20% of its free length.

[0010] Optionally, the top of the operating table is provided with a feeding hole, which is located on one side of the saw blade and corresponds to the position of the third trapezoidal block. A fixed box is fixedly connected inside the operating table, and a collection box is slidably connected inside the fixed box. The top opening of the collection box is connected to the position of the feeding hole. When the pulley moves along the inclined side of the third trapezoidal block to the short side of the third trapezoidal block, the third spring is compressed to 40%-20% of its free length.

[0011] Optionally, the top of the operating table is provided with a sliding groove, and a moving rod is slidably connected inside the sliding groove through the bottom of the connecting cylinder. A moving wheel is installed at the bottom end of the moving rod, and a first spring is sleeved on the outside of one end of the moving rod. One end of the first spring is fixedly connected to the outside of the end of the moving rod away from the connecting cylinder, and the other end of the first spring is fixedly connected to one end of the connecting cylinder. A first trapezoidal block and a stop block are fixedly connected inside the operating table. The position of the first trapezoidal block is located at the initial position before the workpiece moves, and the position of the stop block is located at the end position after the workpiece moves. The top two sides of the first trapezoidal block are respectively provided with a long inclined side and a short inclined side, and the inclination angle of the long inclined side is smaller than that of the short inclined side. When the moving wheel moves along the long inclined side of the first trapezoidal block to the top of the long inclined side, the first spring and the second spring are compressed to 40%-20% of their free length. The position of the stop block corresponds to the position of the moving wheel. A retaining ring is fixedly connected to the outside of the end of the first connecting rod away from the first abutment plate.

[0012] Optionally, the air blowing assembly includes an air cylinder installed inside the operating table. An air plug is slidably connected inside the air cylinder. The size of the air plug is adapted to the size of the internal space of the air cylinder. A connecting plate is fixedly connected to one side of the air plug. A connecting plate is fixedly connected to the bottom of the placement plate at one end of the second side plate. The end of the connecting plate away from the placement plate passes through the interior of the sliding groove and is fixedly connected to the end of the connecting plate away from the air cylinder. The connecting plate is L-shaped.

[0013] Optionally, the output end of the air injection cylinder is connected to a connecting pipe, the output end of the connecting pipe is connected to a conveying pipe, the output end of the conveying pipe is connected to an air expansion box, the bottom of the air expansion box is installed on the top of the operating table, and the position of the output end of the air expansion box corresponds to the position of the saw blade.

[0014] Optionally, multiple baffles are installed on the top of the output end of the air box, and the output end of the connecting pipe is connected to an alignment pipe. The alignment pipe is located at the connection between the conveying pipe and the connecting pipe, and the alignment pipe is parallel to the connecting pipe. An extension plate is rotatably connected to the top of one end of the L-shaped plate via a hinge shaft, and a protective plate is rotatably connected to the bottom of one side of the top frame via a hinge shaft. The top of the extension plate is slidably connected to the bottom of the protective plate. The extension plate and the protective plate are located on one side of the saw blade.

[0015] Optionally, an arc-shaped plate is provided at the top of the alignment tube, and a track plate is fixedly connected to the bottom inside the alignment tube. A thin rod is slidably engaged at the top of the track plate, and a lightweight ball is fixedly connected to the top of the thin rod. The top of the lightweight ball is in contact with the bottom of the arc-shaped plate. An air intake hole is provided at the end of the arc-shaped plate away from the connecting tube. The position of the air intake hole corresponds to the position of the lightweight ball, and the size of the lightweight ball is compatible with the size of the air intake hole. The end of the conveying tube connected to the arc-shaped plate is higher than the end of the conveying tube connected to the connecting tube. When the air injection plug is away from the side of the connecting tube, the lightweight ball moves to the bottom of the conveying tube.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] In the above scheme, by setting up a clamping component, a triggering component, and an air blowing component, the three components work together to enable the device to achieve synchronous clamping of the workpiece and the riser, automatic unloading after cutting, and automatic cleaning of the cutting area. Specifically, after the workpiece is placed, it can automatically and stably position itself relative to the riser, avoiding edge chipping during sawing. After cutting, the riser can automatically fall off and be collected. At the same time, the debris in the sawing area is automatically blown into the collection box by the airflow. The three components work together to ensure the stability and accuracy of workpiece cutting, while improving processing efficiency and automation, reducing manual operation, thus extending the service life of the equipment, and significantly improving the overall stability and integrity of workpiece processing.

[0018] By setting up a clamping assembly, through the cooperation of a placement plate, a limiting plate, a connecting rod, and a stop plate, not only can the main body of the workpiece be clamped after it is placed, but the gating gate of the workpiece can also be clamped synchronously during the cutting process. This ensures that the gating gate remains in close contact with the workpiece during sawing. This structural design effectively prevents the gating gate from shaking or shifting during cutting, and also prevents the gating gate from cracking halfway through the cutting, which would cause chipping at the cut edge of the workpiece. This ensures the neatness and precision of the cut, improves the quality of the finished product, and reduces the rework rate.

[0019] By setting up a trigger component, the workpiece clamping and release are automated through workpiece placement, screw-driven movement of the placement plate, and the coordinated movement of pulleys, moving wheels, and trapezoidal blocks. Specifically, when the workpiece is placed on the placement plate and moves with it, the moving wheel passes over the top of the first trapezoidal block, causing the return spring to rebound, prompting the first abutment plate to engage with the second side plate to clamp the workpiece. When the pulley moves to one side of the second trapezoidal block, the third spring rebounds, causing the second abutment plate to engage with the first side plate to clamp the workpiece's riser. This ensures that the workpiece and its riser are reliably positioned and clamped before sawing. After cutting, when the placement plate continues to move to the stop block and the third trapezoidal block, the abutment plate automatically disengages from the workpiece and riser, allowing the riser to automatically fall into the discharge hole, and the workpiece can be directly removed. The entire process requires no manual intervention, improving operational efficiency and safety.

[0020] By setting up an air-blowing assembly, the movement of the placement plate drives the air-injection plug to move, thereby achieving automatic airflow control. When the placement plate moves forward, the air-injection plug sucks up the lightweight ball to block the conveying pipe, causing gas to enter through the suction hole and preventing debris from being sucked in from the expansion box and entering the air-injection cylinder with the airflow. When the placement plate returns to its original position, the air-injection plug resets and pushes the gas to move the lightweight ball to the position of the suction hole to block it. At the same time, the gas enters the conveying pipe and is blown out from the expansion box, blowing towards both sides of the saw blade, causing the debris on the top of the operating table to enter the discharge hole for collection. This allows for timely cleaning of debris in the area above the operating table after sawing, and blows the debris into the discharge hole, preventing debris accumulation from affecting sawing accuracy or jamming the workpiece, improving the cleanliness of the processing environment and the long-term stability of the device. Attached Figure Description

[0021] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0023] Figure 2 For the present invention Figure 1Another perspective structural diagram;

[0024] Figure 3 For the present invention Figure 1 Side view sectional structural schematic diagram;

[0025] Figure 4 This is a schematic diagram of the internal structure of the protective box of the present invention;

[0026] Figure 5 This is a schematic diagram of the top structure of the operating table of the present invention;

[0027] Figure 6 This is a schematic diagram of the clamping component and triggering component of the present invention;

[0028] Figure 7 This is a schematic diagram of the clamping assembly of the present invention.

[0029] Figure 8 This is a schematic diagram of the air blowing assembly structure of the present invention;

[0030] Figure 9 For the present invention Figure 8 Side view sectional structural schematic diagram;

[0031] Figure 10 For the present invention Figure 9 Enlarged structural diagram at point A in the middle.

[0032] [Figure Labels]

[0033] 1. Operating platform; 2. Top frame; 3. Base frame; 4. First motor; 5. Drive wheel; 6. Driven wheel; 7. Saw blade; 8. First slide rail; 9. Second slide rail; 10. Placement plate; 11. First side plate; 12. Second side plate; 13. First abutment plate; 14. First limiting plate; 15. First connecting rod; 16. Retaining ring; 17. Connecting cylinder; 18. Moving rod; 19. First spring; 20. Moving wheel; 21. First trapezoidal block; 22. Stop block; 23. Second spring; 24. Connecting plate; 25. Second limiting plate; 26. Protective box; 27. Second trapezoidal block; 28. Second abutment plate; 29. Second connecting rod; 30. Third spring; 31. L-shaped rod; 32. Pulley; 33. L-shaped plate; 34. Extension plate; 35. Protective plate; 36. Slide groove; 37. Discharge hole; 38. Fixed box; 39. Collection box; 40. Screw; 41. Slider; 42. Second motor; 43. Third trapezoidal block; 44. Linking plate; 45. Connecting plate; 46. Air injection cylinder; 47. Connecting pipe; 48. Conveying pipe; 49. Air expansion box; 50. Baffle curtain; 51. Air injection plug; 52. Alignment tube; 53. Track plate; 54. Thin rod; 55. Lightweight ball; 56. Arc plate; 57. Suction hole.

[0034] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0035] The high-speed sawing processing device for the gating and riser of aluminum alloy castings provided by the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should also be noted that, in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can also use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0036] like Figures 1 to 10 As shown, an embodiment of the present invention provides a high-speed sawing processing device for the riser and gating of aluminum alloy castings, including an operating table 1, a top frame 2 fixedly connected to the top of the operating table 1, a base frame 3 fixedly connected inside the operating table 1, a drive wheel 5 driven by a first motor 4 installed inside the base frame 3, a driven wheel 6 installed inside the top frame 2, the drive wheel 5 being connected to the driven wheel 6 via a saw blade 7, a clamping assembly for clamping the workpiece being provided on the top of the operating table 1, the clamping assembly including a placement plate 10 and a second limiting plate 25 respectively slidably connected to the top of a first slide rail 8 and a second slide rail 9, the placement plate 10 and the second limiting plate 25 being located on both sides of the saw blade 7, the first slide rail 8 and the second slide rail 9 being installed on the top of the operating table 1, a second side plate 12 and a first limiting plate 14 respectively fixedly connected to the top of both ends of the placement plate 10, and a... A connecting plate 24 is fixedly connected to the side, and a first side plate 11 is fixedly connected to the top of the connecting plate 24. A first connecting rod 15 is slidably connected inside the first limiting plate 14. A first abutment 13 is fixedly connected to one end of the first connecting rod 15. The position of the first abutment 13 corresponds to the position of the second side plate 12. A second connecting rod 29 is slidably connected inside the second limiting plate 25. A second abutment 28 is fixedly connected to one end of the second connecting rod 29. The position of the second abutment 28 corresponds to the position of the first side plate 11. A triggering component is provided on the top of the operating table 1 for automatic clamping and automatic unloading of the workpiece during movement. An air blowing component is provided inside the operating table 1 for cleaning debris. The clamping component, triggering component, and air blowing component cooperate with each other to realize synchronous clamping of the workpiece and the riser, automatic unloading after cutting, and automatic cleaning of the cutting area.

[0037] It should be noted that the casting processed by this invention is an ADC12 aluminum alloy casting with a workpiece weight of 2.5kg and a riser diameter of 30mm. At the same time, the power of the first motor is 4kw and the linear speed of the saw blade 7 is 25m / s.

[0038] By employing a combination of clamping, triggering, and air-blowing components, the device achieves synchronous clamping of the workpiece and the riser / sprue, automatic unloading after cutting, and automatic cleaning of the cutting area. Specifically, after the workpiece is placed, it automatically achieves stable positioning between the workpiece and the riser / sprue, avoiding edge chipping during sawing. After cutting, the riser / sprue automatically falls off and is collected. Simultaneously, debris from the sawing area is automatically blown into the collection box 39 by the airflow. The three components work together to ensure the stability and accuracy of workpiece cutting, while improving processing efficiency and automation, reducing manual operation, thus extending the equipment's service life, and significantly improving the overall stability and integrity of workpiece processing.

[0039] like Figures 1 to 7 As shown, an L-shaped plate 33 is fixedly connected to one end of the second limiting plate 25. The end of the L-shaped plate 33 away from the second limiting plate 25 passes around the outside of the saw blade 7 and is fixedly connected to one end of the second side plate 12. A protective box 26 is fixedly connected to one side of the top of the operating table 1. A second motor 42 is installed at one end of the protective box 26. A screw 40 is rotatably connected inside the protective box 26. A slider 41 is threadedly connected to the outside of the screw 40. The top of the slider 41 passes through the top of the protective box 26 and is fixedly connected to the end of the connecting plate 24 away from the placement plate 10.

[0040] The screw 40 is driven by the second motor 42 to rotate inside the protective box 26. The screw 40 drives the external slider 41 to move axially along the screw 40 through the threaded pair. The top of the slider 41 is fixedly connected to the connecting plate 24, thereby realizing the precise reciprocating adjustment of the connecting plate 24. This, in turn, drives the movement of the placement plate 10, the second limiting plate 25, and the L-shaped plate 33 relative to the saw blade 7. Thus, when the workpiece is placed on the top of the placement plate 10, it can be clamped by the clamping assembly and then moved to cut the workpiece's gating gate. This avoids the trouble of manually pushing and cutting the workpiece, which is traditionally required. At the same time, by setting the L-shaped plate 33 to bypass the saw blade 7 and connect to the placement plate 10, the problem of the L-shaped plate 33 contacting the saw blade 7 during the movement is avoided, which facilitates the movement of the placement plate 10 and the second limiting plate 25.

[0041] like Figures 1 to 7As shown, rubber pads are installed on one side of the first side plate 11, the second side plate 12, the first abutment plate 13, and the second abutment plate 28, and the position of the second abutment plate 28 corresponds to the position of the workpiece riser. A second spring 23 is sleeved on the outside of one end of the first connecting rod 15. One end of the second spring 23 is fixedly connected to one side of the first abutment plate 13, and the other end of the second spring 23 is fixedly connected to one side of the first limiting plate 14. A third spring 30 is sleeved on the outside of one end of the second connecting rod 29. One end of the third spring 30 is fixedly connected to one side of the second abutment plate 28, and the other end of the third spring 30 is fixedly connected to one side of the second limiting plate 25.

[0042] With the clamping assembly in place, when the workpiece is placed on top of the placement plate 10, its initial position is first determined by the positions of the first side plate 11 and the second side plate 12. The workpiece is then positioned so that both sides are respectively against one side of the first side plate 11 and the second side plate 12. This facilitates both subsequent clamping and positioning of the workpiece. Then, the first abutment plate 13 and the second abutment plate 28, driven by the first connecting rod 15 and the second connecting rod 29, move towards the other sides of the workpiece, creating a clamping force between the abutment plate and the side plate. This facilitates the fixation of the workpiece and its gating system. Simultaneously, the rubber pads on the abutment plate surface form a flexible fit with the workpiece surface, preventing scratches or indentations caused by hard contact. The first abutment plate 13 is elastically connected to the first limiting plate 14 via the second spring 23, and the second abutment plate 28 is elastically connected to the second limiting plate 25 via the third spring 30. This allows the abutment plates to maintain a stable clamping force during clamping while also providing buffering and rebound functions. This structural design not only enables precise positioning and stable clamping of the workpiece riser position, ensuring that the workpiece does not shake or shift during cutting, but also effectively absorbs vibration and impact during the cutting process, improving the stability and accuracy of sawing, while reducing workpiece surface damage and improving finished product quality. It should also be noted that the stiffness coefficient of the second spring 23 and the third spring 30 is 50-100 N / mm, and the working stroke is 20-50 mm.

[0043] like Figures 1 to 7 As shown, the triggering assembly includes an L-shaped rod 31 fixedly connected to the top of the second abutment 28 and a connecting cylinder 17 fixedly connected to the bottom of one end of the first connecting rod 15. A pulley 32 is installed at the end of the L-shaped rod 31 away from the second abutment 28. A second trapezoidal block 27 and a third trapezoidal block 43 are fixedly connected to the top of both ends of the operating table 1, respectively. The position of the second trapezoidal block 27 is at the initial position before the workpiece moves, and the position of the third trapezoidal block 43 is at the end position after the workpiece moves. When the pulley 32 moves along the inclined side of the second trapezoidal block 27 to the short side of the second trapezoidal block 27, the third spring 30 is compressed to 40%-20% of its free length.

[0044] With the second trapezoidal block 27 and the third spring 30, when the workpiece moves on the operating table 1 with the placement plate 10, the pulley 32 installed on the L-shaped rod 31 slides along the short side of the second trapezoidal block 27 set at the top of the operating table 1. When the pulley 32 gradually moves to the inclined side of the second trapezoidal block 27, the third spring 30 automatically rebounds, thereby pushing the second abutment 28 closer to the workpiece riser. Then, through the cooperation of the second abutment 28 and the first side plate 11, the workpiece riser is clamped. This process realizes the automatic clamping of the riser before the workpiece enters the cutting position, avoiding manual adjustment and ensuring that the workpiece and the riser are always in contact during cutting.

[0045] like Figures 5 to 7 As shown, the top of the operating table 1 is provided with a feeding hole 37, which is located on one side of the saw blade 7 and corresponds to the position of the third trapezoidal block 43. A fixed box 38 is fixedly connected inside the operating table 1, and a collection box 39 is slidably connected inside the fixed box 38. The top opening of the collection box 39 is connected to the position of the feeding hole 37. When the pulley 32 moves along the inclined side of the third trapezoidal block 43 to the short side of the third trapezoidal block 43, the third spring 30 is compressed to 40%-20% of its free length.

[0046] With the third trapezoidal block 43 and the discharge hole 37, when the workpiece moves on the operating table 1 and gradually completes the sawing, the riser of the workpiece has been clamped before the initial cutting, and the riser is still attached to one side of the workpiece after cutting. When the cut riser moves past the saw blade 7, the pulley 32 will move along the inclined side of the third trapezoidal block 43 to the short side of the third trapezoidal block 43, causing the second abutment 28 to be pulled away from the riser by the L-shaped rod 31. Since the position of the third trapezoidal block 43 corresponds to the position of the discharge hole 37, when the second abutment 28 moves away from the riser, the riser will fall off one side of the workpiece and fall into the discharge hole 37, and enter the collection box 39 for collection and processing. At the same time, the fixed box 38 ensures the stability of the position of the collection box 39 and facilitates the collection box 39 to be pulled out from one side of the operating table 1 for processing.

[0047] like Figures 5 to 7As shown, a groove 36 is provided on the top of the operating table 1. A moving rod 18 is slidably connected to the bottom of the connecting cylinder 17 through the groove 36. A moving wheel 20 is installed at the bottom end of the moving rod 18. A first spring 19 is sleeved on the outside of one end of the moving rod 18. One end of the first spring 19 is fixedly connected to the outside of the end of the moving rod 18 away from the connecting cylinder 17, and the other end of the first spring 19 is fixedly connected to one end of the connecting cylinder 17. A first trapezoidal block 21 and a stop block 22 are fixedly connected inside the operating table 1. The position of the first trapezoidal block 21 is located at the work... Before the workpiece moves, the initial position is set. The position of the stop block 22 is set at the end position after the workpiece moves. The top two sides of the first trapezoidal block 21 are respectively provided with a long inclined side and a short inclined side, and the inclination angle of the long inclined side is smaller than that of the short inclined side. When the moving wheel 20 moves along the long inclined side of the first trapezoidal block 21 to the top of the long inclined side, the first spring 19 and the second spring 23 are compressed to 40%-20% of their free length. The position of the stop block 22 corresponds to the position of the moving wheel 20. The first connecting rod 15 is fixedly connected to the outside of the end away from the first abutment plate 13 with a retaining ring 16.

[0048] As the workpiece moves along the top of the placement plate 10 via the connecting cylinder 17, the first trapezoidal block 21, and the stop block 22, the moving wheel 20 moves upward along the long inclined side of the first trapezoidal block 21. Simultaneously, the moving rod 18 moves inward into the connecting cylinder 17, and the first spring 19 continuously contracts. After the moving wheel 20 passes the top of the first trapezoidal block 21, it moves downward along the short inclined side, causing the first spring 19 to rebound. At the same time, the first connecting rod 15 releases its limit, causing the second spring 23 to rebound and move the first abutment plate 13 towards one side of the workpiece. Through the cooperation of the first abutment plate 13 and the second side plate 12, the workpiece is clamped on the top of the placement plate 10, facilitating the subsequent cutting of the riser. It should be noted that the process of the first abutment plate 13 and the second side plate 12 clamping the workpiece occurs before the second abutment plate 28 and the first side plate 11 clamp the workpiece riser. This avoids the problem of inaccurate riser clamping position due to displacement during workpiece clamping. Afterwards, when the riser is detached, the moving wheel 20 moves to one side of the stop block 22. At this time, the stop block 22 blocks the movement of the moving wheel 20, causing the position of the first connecting rod 15 to be limited. At the same time, the second spring 23 retracts, and the first abutment plate 13 moves away from the workpiece, thus facilitating the removal of the workpiece. By setting the top of the first trapezoidal block 21 with long and short inclined sides on both sides, when the workpiece finishes risingr cutting and returns to its original position, the placement plate 10, carrying the moving wheel 20, will first contact the short inclined side of the first trapezoidal block 21. Simultaneously, the moving rod 18, along the short inclined side, continuously moves upwards, causing the first spring 19 to retract. At this time, the first connecting rod 15 continuously pushes the second spring 23 to stretch. A retaining ring 16 then blocks one side of the first limiting plate 14, limiting the length of the first connecting rod 15 stretching the second spring 23 and preventing excessive stretching that could reduce its elasticity. Afterwards, when the moving wheel 20 passes the top of the first trapezoidal block 21 and moves downwards along the long inclined side of the first trapezoidal block 21, the second spring 23 and the first spring 19 rebound to their normal state. Then, the second motor 42 needs to be activated to move the placement plate 10 towards the side of the saw blade 7, causing the moving wheel 20 to continuously move upwards along the long inclined side of the first trapezoidal block 21. The movement causes the first connecting rod 15 to move along with the first abutment plate 13, simultaneously contracting the second spring 23 and bringing it to a taut state. This causes the placement plate 10 to return to its initial state, facilitating the placement of the workpiece on it and also making it easier for the first abutment plate 13 to clamp the workpiece later. It should be noted that the inclination angle of the long inclined side of the first trapezoidal block 21 is 5-15°, and the inclination angle of the short inclined side is 20-35°. By setting the inclination angle of the long inclined side of the first trapezoidal block 21 to be smaller than that of the short inclined side, the moving wheel 20 moves upward along the long inclined side of the first trapezoidal block 21, achieving the effect of compressing the second spring 23 over a short distance. This avoids the problem of reduced workpiece processing efficiency due to excessively long movement. It should be noted that...As the moving wheel 20 moves upward along the long inclined side of the first trapezoidal block 21, contracting the second spring 23 and causing the placement plate 10 to return to its initial state, the pulley 32 moves along the short side of the second trapezoidal block 27. This facilitates the contraction of the third spring 30 and makes it easier to clamp the workpiece riser later.

[0049] like Figure 3 , Figure 5 , Figure 8 and Figure 9 As shown, the air blowing assembly includes an air cylinder 46 installed inside the operating table 1. An air plug 51 is slidably connected inside the air cylinder 46. The size of the air plug 51 is adapted to the size of the internal space of the air cylinder 46. A connecting plate 45 is fixedly connected to one side of the air plug 51. A connecting plate 44 is fixedly connected to the bottom of the placement plate 10 at one end of the second side plate 12. The end of the connecting plate 44 away from the placement plate 10 passes through the interior of the slide groove 36 and is fixedly connected to the end of the connecting plate 45 away from the air cylinder 46. The connecting plate 44 is L-shaped. The output end of the air cylinder 46 is connected to a connecting pipe 47. The output end of the connecting pipe 47 is connected to a conveying pipe 48. The output end of the conveying pipe 48 is connected to an expansion box 49. The bottom of the expansion box 49 is installed on the top of the operating table 1. The position of the output end of the expansion box 49 corresponds to the position of the saw blade 7.

[0050] With the air injection cylinder 46, connecting plate 45, and diffuser box 49 configured, when the placement plate 10 moves with the workpiece to cut the riser, the connecting plate 44 moves with the connecting plate 45 away from the air injection cylinder 46, causing the air injection plug 51 to draw air away from the connecting pipe 47. After the workpiece has finished cutting the riser, the placement plate 10 moves back, and the connecting plate 44 moves with the connecting plate 45 towards the end of the air injection cylinder 46. Simultaneously, the air injection plug 51 pushes the gas inside the air injection cylinder 46 into the connecting pipe 47, causing the gas to be blown out from inside the diffuser box 49 through the conveying pipe 48. At this time, by setting the position of the diffuser box 49 to correspond to the position of the saw blade 7, the diffuser box 49 blows the cutting debris around the saw blade 7 into the discharge hole 37 and into the collection box 39 for collection. This allows for timely cleaning of debris from the top area of ​​the operating table 1 after sawing, and the debris is blown into the discharge hole 37, preventing debris accumulation from affecting sawing accuracy or jamming the workpiece. This improves the cleanliness of the processing environment and the long-term stability of the device. At the same time, by setting the connecting plate 44 in an L-shape, which passes through the interior of the slide groove 36, the connecting plate 45, air injection cylinder 46, and other structures are prevented from affecting the movement of the connecting cylinder 17 and the moving rod 18. The L-shaped connecting plate 44 also causes the connecting plate 45 and air injection cylinder 46 to avoid the connecting cylinder 17 and the moving rod 18, thus avoiding motion interference. It should also be noted that the effective volume of the air injection cylinder 46 is 500-1000 cm³, and the air velocity at the outlet of the air diffuser 49 is 5-10 m / s, which helps to blow away the debris.

[0051] like Figure 3 , Figure 5 , Figure 8 and Figure 9 As shown, multiple baffles 50 are installed on the top of the output end of the air box 49. The output end of the connecting pipe 47 is connected to the alignment pipe 52. The alignment pipe 52 is located at the connection between the conveying pipe 48 and the connecting pipe 47, and the alignment pipe 52 is parallel to the connecting pipe 47. The top of one end of the L-shaped plate 33 is rotatably connected to the extension plate 34 through a hinge shaft. The bottom of one side of the top frame 2 is rotatably connected to the protective plate 35 through a hinge shaft. The top of the extension plate 34 is slidably connected to the bottom of the protective plate 35. The extension plate 34 and the protective plate 35 are located on one side of the saw blade 7.

[0052] The baffle 50, by blocking the air outlet of the diffuser 49, prevents debris from entering the diffuser 49 during workpiece cutting of the riser. It should be noted that the baffle 50 is made of inorganic fiber composite material, which is lightweight and heat-resistant, facilitating gas blowing and preventing sparks from damaging the workpiece during cutting. Furthermore, the L-shaped plate 33, extension plate 34, and protective plate 35 are also included. The L-shaped plate 33 not only connects to the second limiting plate 25 but also provides a shielding effect, preventing debris from scattering at the bottom during workpiece cutting of the riser. The extension plate 34 and protective plate 35 also serve to shield and prevent debris from flying. The extension plate 34 slides on the bottom of the protective plate 35, and the protective plate 35 is connected to the bottom hinge shaft of the top frame 2 and the top hinge shaft of the L-shaped plate 33. In this way, when the L-shaped plate 33 moves, the extension plate 34 and the protective plate 35 can rotate through the shaft. The extension plate 34 can also be retracted, which facilitates the shielding of debris and avoids the problem of movement interference. It should be noted that the extension plate 34 is made of 5-8mm thick tempered glass, which facilitates the observation of the cutting position.

[0053] like Figure 5 , Figure 8 , Figure 9 and Figure 10As shown, an arc-shaped plate 56 is provided at the top of the alignment tube 52, and a track plate 53 is fixedly connected to the bottom inside the alignment tube 52. A thin rod 54 is slidably engaged at the top of the track plate 53, and a lightweight ball 55 is fixedly connected to the top of the thin rod 54. The top of the lightweight ball 55 is in contact with the bottom of the arc-shaped plate 56. An air suction hole 57 is provided at the end of the arc-shaped plate 56 away from the connecting tube 47. The position of the air suction hole 57 corresponds to the position of the lightweight ball 55, and the size of the lightweight ball 55 is compatible with the size of the air suction hole 57. The end of the conveying tube 48 connected to the arc-shaped plate 56 is higher than the end of the conveying tube 48 connected to the connecting tube 47. When the air injection plug 51 is away from the side of the connecting tube 47, the lightweight ball 55 moves to the bottom of the conveying tube 48.

[0054] Through the alignment tube 52, the lightweight ball 55, and the suction hole 57, when the injection plug 51 is away from the connecting tube 47, the injection plug 51 will pump air. During the pumping process, since the position of the lightweight ball 55 corresponds to the inlet of the connecting tube 47, and the lightweight ball 55 is a hollow plastic ball with a density of less than 0.5 g / cm³, the side of the lightweight ball 55 away from the suction hole 57 during the pumping process, because the end of the conveying tube 48 connected to the arc plate 56 is higher than the end of the conveying tube 48 connected to the connecting tube 47, the lightweight ball 55 moves. When the gas reaches the bottom of the delivery pipe 48, it will be blocked by the bottom end of the delivery pipe 48, thus blocking the bottom of the delivery pipe 48. This will cause the gas to enter the air injection cylinder 46 from the air intake hole 57 through the bottom of the lightweight ball 55. This will prevent the gas from being drawn from the expansion box 49 during the pumping process, which would cause debris to enter the air injection cylinder 46. At the same time, during the later blowing process, the gas will blow the lightweight ball 55 to move towards one side of the air intake hole 57, causing the lightweight ball 55 to block one side of the air intake hole 57. This will cause the gas to enter the expansion box 49 from the delivery pipe 48, thus achieving the effect of blowing away debris.

[0055] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0056] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A high-speed sawing device for aluminum alloy casting ingot sprues, comprising an operating table (1), a top frame (2) fixedly connected to the top of the operating table (1), a bottom frame (3) fixedly connected to the inside of the operating table (1), a driving wheel (5) driven by a first motor (4) installed in the inside of the bottom frame (3), a driven wheel (6) installed in the inside of the top frame (2), and a saw blade (7) connecting the driving wheel (5) and the driven wheel (6), characterized in that, The top of the operation table (1) is provided with a clamping assembly for clamping the workpiece, the clamping assembly comprises a placing plate (10) and a second limiting plate (25) which are respectively slidingly connected to the top of the first slide rail (8) and the second slide rail (9), the positions of the placing plate (10) and the second limiting plate (25) are located on both sides of the saw blade (7), the first slide rail (8) and the second slide rail (9) are installed on the top of the operation table (1), the top of both ends of the placing plate (10) is fixedly connected with the second side plate (12) and the first limiting plate (14) respectively, one side of the placing plate (10) is fixedly connected with the connecting plate (24), the top of the connecting plate (24) is fixedly connected with the first side plate (11), the inside of the first limiting plate (14) is slidingly connected with the first connecting rod (15), one end of the first connecting rod (15) is fixedly connected with the first abutting plate (13), the position of the first abutting plate (13) corresponds to the position of the second side plate (12), the inside of the second limiting plate (25) is slidingly connected with the second connecting rod (29), one end of the second connecting rod (29) is fixedly connected with the second abutting plate (28), the position of the second abutting plate (28) corresponds to the position of the first side plate (11); The top of the operation table (1) is provided with a trigger assembly for automatic clamping and automatic unloading of the workpiece during movement; The inside of the operation table (1) is provided with a blowing assembly for cleaning the debris; The clamping assembly, the trigger assembly and the blowing assembly cooperate with each other to realize synchronous clamping of the workpiece and the pouring riser, automatic unloading after cutting and automatic cleaning of the cutting area; The trigger assembly comprises an L-shaped rod (31) fixedly connected to the top of the second abutting plate (28) and a connecting cylinder (17) fixedly connected to one end of the first connecting rod (15), one end of the L-shaped rod (31) away from the second abutting plate (28) is provided with a pulley (32), the top of both ends of the operation table (1) is fixedly connected with a second trapezoidal block (27) and a third trapezoidal block (43) respectively, the position of the second trapezoidal block (27) is located at the initial position before the workpiece moves, the position of the third trapezoidal block (43) is located at the terminal position after the workpiece moves, when the pulley (32) moves along the oblique side of the second trapezoidal block (27) to the short side of the second trapezoidal block (27), the third spring (30) is compressed to 40%-20% of its free length, the top of the operation table (1) is provided with a discharging hole (37), the position of the discharging hole (37) is located on one side of the saw blade (7), and the position of the discharging hole (37) corresponds to the position of the third trapezoidal block (43), the inside of the operation table (1) is fixedly connected with a fixed box (38), the inside of the fixed box (38) is slidingly connected with a collecting box (39), the position of the opening at the top of the collecting box (39) is in communication with the position of the discharging hole (37), when the pulley (32) moves along the oblique side of the third trapezoidal block (43) to the short side of the third trapezoidal block (43), the third spring (30) is compressed to 40%-20% of its free length.

2. The apparatus for high speed sawing of the ingate of an aluminum alloy casting according to claim 1, wherein One end of the second limit board (25) is fixedly connected with an L-shaped plate (33), one end of the L-shaped plate (33) away from the second limit board (25) is fixedly connected with one end of the second side plate (12) by bypassing the outside of the saw blade (7), one side of the top of the operation table (1) is fixedly connected with a protection box (26), one end of the protection box (26) is provided with a second motor (42), the inside of the protection box (26) is rotatably connected with a screw rod (40), the outside of the screw rod (40) is threadedly connected with a sliding block (41), and the top of the sliding block (41) is fixedly connected with one end of the connecting plate (24) away from the placing plate (10) by penetrating the top of the protection box (26).

3. The apparatus for high speed sawing of a casting head of an aluminum alloy casting according to claim 2, wherein One side of the first side plate (11), the second side plate (12), the first abutting plate (13) and the second abutting plate (28) is respectively provided with a rubber pad, the position of the second abutting plate (28) corresponds to the position of the workpiece riser, the outside of one end of the first connecting rod (15) is sleeved with a second spring (23), one end of the second spring (23) is fixedly connected with one side of the first abutting plate (13), the other end of the second spring (23) is fixedly connected with one side of the first limit board (14), the outside of one end of the second connecting rod (29) is sleeved with a third spring (30), one end of the third spring (30) is fixedly connected with one side of the second abutting plate (28), and the other end of the third spring (30) is fixedly connected with one side of the second limit board (25).

4. The apparatus for high speed sawing of the ingate of an aluminum alloy casting according to claim 1, wherein The top of the operation table (1) is provided with a sliding groove (36), the inside of the bottom of the connecting cylinder (17) is slidably connected with a moving rod (18) by penetrating the inside of the sliding groove (36), the bottom end of the moving rod (18) is provided with a moving wheel (20), the outside of one end of the moving rod (18) is sleeved with a first spring (19), one end of the first spring (19) is fixedly connected with the outside of one end of the moving rod (18) away from the connecting cylinder (17), the other end of the first spring (19) is fixedly connected with one end of the connecting cylinder (17), the inside of the operation table (1) is fixedly connected with a first trapezoidal block (21) and a stop block (22), the position of the first trapezoidal block (21) is located at the initial position before the workpiece moves, the position of the stop block (22) is located at the terminal position after the workpiece moves, the two sides of the top of the first trapezoidal block (21) are respectively provided with a long oblique side and a short oblique side, and the inclination angle of the long oblique side is smaller than that of the short oblique side, the first spring (19) and the second spring (23) are compressed to 40%-20% of their free lengths when the moving wheel (20) moves along the long oblique side of the first trapezoidal block (21) to the top of the long oblique side, the position of the stop block (22) corresponds to the position of the moving wheel (20), and the outside of one end of the first connecting rod (15) away from the first abutting plate (13) is fixedly connected with a stop ring (16).

5. The apparatus for high speed sawing of the ingate of an aluminum alloy casting according to claim 3, wherein The blowing assembly includes an injection cylinder (46) mounted inside the operating table (1), the inside of the injection cylinder (46) is slidably connected with an injection plug (51), the specification size of the injection plug (51) is matched with the size of the inside space of the injection cylinder (46), one side of the injection plug (51) is fixedly connected with a connecting plate (45), the bottom of one end of the placement plate (10) on the second side plate (12) is fixedly connected with a connecting plate (44), the end of the connecting plate (44) away from the placement plate (10) is fixedly connected with the end of the connecting plate (45) away from the injection cylinder (46) through the inside of the sliding groove (36), and the shape of the connecting plate (44) is L-shaped.

6. The apparatus for high speed sawing of a casting head of an aluminum alloy casting according to claim 5, wherein The output end of the injection cylinder (46) is communicated with a connecting pipe (47), the output end of the connecting pipe (47) is communicated with a conveying pipe (48), the output end of the conveying pipe (48) is communicated with a gas expansion tank (49), the bottom of the gas expansion tank (49) is mounted on the top of the operating table (1), and the position of the output end of the gas expansion tank (49) corresponds to the position of the saw blade (7).

7. The apparatus for high speed sawing of the ingate of an aluminum alloy casting according to claim 6, wherein The top of the output end of the gas expansion tank (49) is mounted with a plurality of curtain (50), the output end of the connecting pipe (47) is communicated with an alignment pipe (52), the position of the alignment pipe (52) is located at the connection position of the conveying pipe (48) and the connecting pipe (47), and the alignment pipe (52) is parallel to the connecting pipe (47), the top of one end of the L-shaped plate (33) is rotatably connected with an extension plate (34) through a hinge shaft, the bottom of one side of the top frame (2) is rotatably connected with a protective plate (35) through a hinge shaft, the top of the extension plate (34) is slidably connected with the bottom of the protective plate (35), and the positions of the extension plate (34) and the protective plate (35) are located on one side of the saw blade (7).

8. The apparatus for high speed sawing of a casting head of an aluminum alloy casting according to claim 7, wherein The top of the alignment pipe (52) is provided with an arc-shaped plate (56), the bottom of the inside of the alignment pipe (52) is fixedly connected with a track plate (53), the top of the track plate (53) is slidably connected with a thin rod (54), the top of the thin rod (54) is fixedly connected with a light ball (55), the top of the light ball (55) is in contact with the bottom of the arc-shaped plate (56), one end of the arc-shaped plate (56) away from the connecting pipe (47) is provided with an air inlet hole (57), the position of the air inlet hole (57) corresponds to the position of the light ball (55), and the specification size of the light ball (55) is matched with the specification size of the air inlet hole (57), the connecting end of the conveying pipe (48) and the arc-shaped plate (56) is higher than the connecting end of the conveying pipe (48) and the connecting pipe (47), and when the injection plug (51) is away from the connecting pipe (47), the light ball (55) moves to the bottom of the conveying pipe (48).

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