Device for trimming casting edges and cutting shank for horizontal casting island and its adaptive control method

Abstract

This invention discloses a casting edge trimming and shank cutting device for a horizontal casting island and its adaptive control method. The device adaptively controls the saw blade driving force and rotation speed to avoid fluctuations in process time caused by saw blade wear. It features two saw blades, with a host computer selectively driving and controlling the rotation and feed motion of each blade. A guide groove is provided on the side of the saw blade to guide lubricating oil to the outer surface of the saw blade and cool the entire blade. Edge trimming and shank cutting processes are performed simultaneously at one station, improving the reliability of the device in automated operation. This invention achieves edge trimming and shank cutting processes with a constant process time, avoiding production cycle drift on the casting island, extending saw blade life, and eliminating the need for non-stop saw blade replacement. This significantly reduces the downtime and frequency of maintenance on the casting island, as well as saw blade costs.

Description

Technical Field

[0001] This invention relates to the field of mechanical manufacturing equipment, and in particular to a casting edge trimming and cutting shank device for a horizontal casting island and its adaptive control method. Background Technology

[0002] In die casting or extrusion casting islands, trimming and sprue cutting are crucial machining processes for the casting blank. The casting blank removed from the mold has a gating system, overflow channel, and sprue. The gating system and overflow channel are typically removed using trimming dies; the connection between the sprue and the casting is usually removed using sawing. Casting blanks formed in horizontal casting islands have a runner; the trimming process breaks off the runner, separating it from the casting. The sawing process separates the sprue from the casting through the relative movement of a saw blade and the casting.

[0003] With advancements in casting technology and materials, the density, tensile strength, hardness, and wear resistance of castings have been significantly improved. For example, squeeze casting applies substantial mechanical pressure during the forming, crystallization, and solidification of molten metal. Studies have shown that squeeze casting can drastically reduce the shrinkage porosity of high-zinc magnesium alloy Mg-14Zn-3Al castings from 15.67% to 0.81%, while increasing the tensile strength and elongation at break of the alloy by 13.2% and 333%, respectively, compared to gravity casting (Influence of Squeeze Casting on Magnesium Alloy Properties, *Special Casting and Nonferrous Alloys*, Vol. 40, No. 10, 2020). Regarding casting materials, 6-series aluminum alloys use Mg2Si as the main strengthening phase, with aluminum alloy 6061 exhibiting an ultimate tensile strength of 124 MPa and a tensile yield strength of 55.2 MPa. 7-series aluminum alloys, primarily zinc with small amounts of magnesium and copper, can achieve ultra-hard aluminum alloys approaching the hardness of steel.

[0004] Unlike traditional assembly line casting production lines, casting islands are highly integrated, automated, and intelligent manufacturing systems comprised of a casting machine as the main body and several peripheral devices (melting and feeding devices, trimming and cutting shank devices, inspection devices, etc.). However, with the significant improvement in the mechanical and mechanical properties of castings, traditional trimming and cutting shank devices can no longer meet the requirements of casting islands. The main reasons include:

[0005] 1) The increased strength and hardness of the castings lead to faster saw blade wear. Furthermore, the casting blanks still have a good temperature when they are transferred from the upper casting machine to the trimming and cutting shank device. The heat is conducted from the castings to the saw blades, forming thermal shock, which further accelerates saw blade wear.

[0006] 2) Rapid wear of the saw blades leads to a significant increase in their replacement frequency. However, replacing the saw blades requires a long period of production interruption, resulting in a decrease in the overall production efficiency of the foundry island.

[0007] 3) The casting island system has strict requirements for the stability of each process, and the duration of each process should remain constant during continuous production.

[0008] The disclosed technologies involve a series of edge-cutting and shank-cutting structures and methods. For example, Chinese patent CN105081452A discloses an automatic reciprocating gate-removing saw, which can control the residual height after gate removal, improve the efficiency of gate removal, and prevent product damage, as well as ensure the safety and stability of gate removal. Chinese patent CN103273050A discloses a punching device for a bracket product casting system. This device automatically cuts and punches out the casting gate, achieving both stability and economy in gate removal, saving processing costs while ensuring stable gate removal. Chinese patent CN111570752B discloses a cylinder shank removal device, which ensures accurate placement of the removed shank. The robotic arm clamps the shank according to preset instructions, achieving a high degree of automation. Chinese patent CN213944856U discloses a shank removal mechanism, which can automatically fix the die casting, automatically knock off the shank, and move the die casting out of the processing position, reducing manual operation and increasing production efficiency.

[0009] In summary, to improve the edge trimming and shank trimming processes, the existing technologies mainly focus on precisely controlling the sawing position (CN105081452A) and improving the automation level of the equipment (CN103273050A, CN111570752B, CN213944856U).

[0010] Furthermore, considering the aforementioned technical difficulties and existing technologies, the prominent problems currently existing in casting islands can be identified as follows:

[0011] 1) The sawing process time varies. This is mainly because, under the same sawing feed force and saw blade speed, saw blade wear will cause the sawing speed to slow down, resulting in fluctuations in the process time of the cutting shank, which in turn affects the production cycle of the casting island;

[0012] 2) Due to the increased strength of the casting and the thermal shock of the casting on the saw blade, the saw blade has difficulty in heat dissipation and cooling, wear is accelerated, and the saw blade life is significantly shortened;

[0013] 3) The replacement and maintenance of saw blades require machine shutdown and production stoppage, which seriously affects the production efficiency of the foundry island; while regular replacement of saw blades will result in unnecessary waste of saw blades;

[0014] 4) There is room for further improvement in automation and production efficiency in the edge trimming and shank trimming processes. Summary of the Invention

[0015] The development of new casting processes and materials, along with automation requirements, has placed new demands on the methods and devices for edge trimming and shank cutting in casting island systems. To address this issue, this invention relates to a horizontal casting island device for edge trimming and shank cutting, along with its adaptive control method. This device ensures the shank cutting process is completed in a constant time, improving the overall smoothness and reliability of the casting island process. It also avoids downtime for maintenance due to unexpected saw blade failure, making it particularly suitable for processing castings with high density, high tensile strength, high hardness, and high wear resistance.

[0016] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0017] 1) Adaptive control of saw blade driving force and speed to avoid fluctuations in cutting time of the cutting shank due to different wear levels of the saw blade;

[0018] 2) The system is equipped with saw blade A and saw blade B. First, saw blade A performs the cutting of the material handle. When saw blade A is detected to be close to being scrapped, saw blade B is switched to perform the cutting of the material handle. At the same time, a signal is sent to replace saw blade A. The upper computer selectively drives and controls the rotation and feed of saw blade A and saw blade B to achieve the replacement of saw blades without stopping the machine.

[0019] 3) A guide groove is set on the side of the saw blade; during the rotation of the saw blade, the guide groove guides the lubricating oil to the outer surface of the saw blade, and the lubricating oil cools the entire saw blade as it flows through the saw blade body; with conventional techniques, due to the high speed of the saw blade rotation, it is difficult for the lubricating oil to enter the sawing area.

[0020] 4) The edge trimming and shank cutting processes are carried out simultaneously at one workstation; through the combined action of the robot and the mold, the positioning accuracy of the casting blank in the edge trimming and shank cutting processes is improved, thereby enhancing the reliability of the automated operation of the equipment.

[0021] A first aspect of the present invention provides a cutting edge and cutting handle device for a horizontal casting island, comprising a cutting edge machine module, a sawing module and an adaptive control module.

[0022] The trimming machine module includes a fixed trimming template, a fixed trimming mold template, a moving trimming mold template, a moving trimming mold template, a trimming cylinder, a fixed trimming mold, and a moving trimming mold. The moving trimming mold template is located above the moving trimming mold template. The fixed trimming mold template is fixedly installed on the upper surface of the fixed trimming template, and the moving trimming mold template is fixedly installed on the lower surface of the moving trimming mold template. The trimming machine module has two working states: open mold state and closed mold state. When the trimming machine module is in the open mold state, the moving trimming mold template is at its highest position. When the trimming machine module is in the closed mold state, the moving trimming mold template is at its lowest position. The fixed trimming mold and the moving trimming mold fix the spatial position of the casting blank. When the trimming machine module is in the open mold state, the casting blank is placed in the fixed trimming mold template by a robot or manually. Then, the moving trimming mold template is moved downward by the trimming cylinder until the trimming machine module is in the closed mold state. During the state transition of the aforementioned trimming machine module, the trimmer on the moving mold breaks off the overflow grooves around the casting blank. The same structural principle applies to the scheme where the fixed mold plate of the trimming machine is located above the moving mold plate of the trimming machine.

[0023] The sawing module is mounted on the fixed template of the edge trimming machine. The sawing module includes a sawing cylinder, a linear encoder guide rail, a connecting block, a sliding plate, a lubricating oil pipe, limit switch A, a limit stop, limit switch B, a hydraulic motor, a mounting base, a bearing housing, a connecting shaft, a mounting flange, a saw blade, and a base plate. The sliding plate is mounted on the linear encoder guide rail and can slide horizontally along it. The connecting block is fixedly mounted on the bottom of the sliding plate and is also connected to the moving end of the sawing cylinder. The sawing cylinder and the linear encoder guide rail are fixedly mounted on the base plate. The movement of the sliding plate on the linear encoder guide rail is synchronized with the extension and retraction of the sawing cylinder. This structure enables the sliding plate to slide horizontally on the linear encoder guide rail under the drive of the sawing cylinder. The hydraulic motor is fixedly mounted on the mounting base, which in turn is fixedly mounted on the sliding plate. The power output end of the hydraulic motor is connected sequentially to the connecting shaft, the mounting flange, and the saw blade. The connecting shaft is supported by two bearings, and the bearing housing is fixedly mounted on the sliding plate. This structure enables the saw blade to move horizontally via the sawing cylinder. The lubricating oil pipe connects the lubricating oil supply device to the central area of ​​the saw blade. Limit switches A and B are fixedly installed on the side of the grating ruler guide rail, and the travel stop is fixedly installed on the side of the slide plate.

[0024] The adaptive control module includes a host computer, a replenishing pump, a check valve, an electrically controlled unidirectional variable displacement pump, relief valve A, and relief valve B. Hydraulic oil sequentially passes through the replenishing pump, check valve, and electrically controlled unidirectional variable displacement pump to reach the hydraulic motor, controlling the hydraulic motor to rotate in a specific direction. Relief valves A and B are used to protect the hydraulic pressure at the hydraulic motor and replenishing pump from overload, respectively. The host computer controls the flow rate of the electrically controlled unidirectional variable displacement pump, thereby controlling the speed of the hydraulic motor.

[0025] Optionally, in one possible implementation of the first aspect, the adaptive control module further includes an electronically controlled pressure regulating valve and a three-position solenoid valve. Both the electronically controlled pressure regulating valve and the three-position solenoid valve are located in the hydraulic control circuit of the sawing cylinder. The former controls the liquid pressure in the hydraulic control circuit of the sawing cylinder through the host computer, thereby controlling the thrust of the sawing cylinder. The latter's three working positions sequentially realize the three working states of the sawing cylinder, namely the extended state, the holding state, and the retracted state.

[0026] A second aspect of this invention is to improve the heat dissipation and lubrication of the saw blade. A guide groove is provided on the side of the saw blade; during the rotation of the saw blade, the guide groove guides lubricating oil to the outer surface of the saw blade, and the lubricating oil cools the entire saw blade as it flows through the saw blade body.

[0027] Optionally, in one possible implementation of the second aspect, the direction of the guide groove is a radiating structure that extends outward from the central region of the saw blade, the depth of the guide groove is less than or equal to 30% of the thickness of the saw blade, and the width of the guide groove is greater than or equal to 0.1 mm.

[0028] Alternatively, in one possible implementation of the second aspect, the depth of the guide groove is not uniformly distributed, with the depth value being the largest near the center of the saw blade and gradually decreasing away from the center of the saw blade.

[0029] Alternatively, in one possible implementation of the second aspect, the direction of the guide groove extends outward from the central region of the saw blade in a spiral scattering pattern.

[0030] Optionally, the number of guide grooves is greater than or equal to one, and each guide groove is symmetrically distributed about the central axis of the saw blade.

[0031] Optionally, if the number of guide channels is 4, then the deflection angle of each adjacent guide channel in the circumferential direction is 90 degrees, and the guide channels do not intersect each other.

[0032] A third aspect of this invention further improves the conduction of lubricating oil on the saw blade surface. A baffle is tightly fitted to the side of the saw blade where the guide groove is located. During the process of the guide groove guiding the lubricating oil to the outer surface of the saw blade, the baffle restricts the flow of lubricating oil within the guide groove, forming a closed channel with the guide groove. When the saw rotates at high speed, the end of the closed channel near the saw blade cutting edge is under low pressure, while the end away from the cutting edge is under high pressure. This pressure difference directly pumps the lubricating oil from the central region of the saw blade to the outer surface, accelerating the cooling of the outer surface and enhancing lubrication during sawing.

[0033] Alternatively, in one possible implementation of the third aspect, the outer diameter of the baffle is smaller than the outer diameter of the saw blade, and the baffle divides each guide channel into an inflow section, a closed channel, and an outflow section.

[0034] Optionally, the outer diameter of the baffle is 50%-85% of the outer diameter of the saw blade.

[0035] A fourth aspect of the present invention provides a method for operating the above-described cutting edge and cutting shank device for a horizontal casting island.

[0036] Step 1: After the casting machine completes one casting process, the trimming machine module is in the open mold state; the robot arm places the casting blank into the trimming mold.

[0037] Step 2: The hydraulic cylinder of the trimming machine controls the trimming machine module to be in the closed mold state. During the mold closing process of the trimming machine module, the trimmer breaks off the overflow grooves around the casting blank.

[0038] Step 3: The robotic arm grips the material handle, while the adaptive control module drives the hydraulic motor to rotate, which in turn drives the saw blade to rotate, and the lubrication pipe supplies lubricating oil to the central area of ​​the saw blade.

[0039] Step 4: The sawing cylinder drives the slide plate to slide horizontally on the grating ruler guide rail. The saw blade passes through the connection between the sprue and the casting product, thereby separating the sprue and the material handle from the casting blank. When the stroke stop triggers the limit switch, the equipment sends a signal that the sawing process is complete.

[0040] Step 5: The sawing cylinder drives the slide plate to slide horizontally in the opposite direction on the grating ruler guide rail until the travel stop triggers the travel switch, and the sawing process is completed.

[0041] Step 6: The hydraulic cylinder of the edge trimming machine controls the edge trimming machine module to be in the mold opening state. The robot arm takes away the material handle and the product and places them on the material handle basket and the finished product conveyor belt, respectively.

[0042] Optionally, in one possible implementation of the fourth aspect, the adaptive control module remains operational during the fourth step. Specifically, the host computer receives trigger signals from limit switches A and B. The timing module in the host computer obtains the time interval T elapsed after the sequential triggering of limit switches A and B. Subsequently, the timing module in the host computer obtains the time interval B elapsed after the sequential triggering of limit switches B and A. The storage module in the host computer records each obtained time interval T1, T2, T3… and time interval B1, B2, B3…, forming a time interval T sequence and a time interval B sequence.

[0043] The speed of the hydraulic motor is adjusted by an electronically controlled unidirectional variable oil pump, and the thrust of the sawing cylinder is adjusted by an electronically controlled pressure regulating valve. The ideal process parameters for the cutting shank are manually determined. A brand new saw blade is used to complete the cutting shank process. The time interval sequence T and time interval sequence B are stored as T1 and B1, respectively. Then, steps one through six are repeated. The storage module in the host computer stores the time intervals T2 and B2 for the second round of edge trimming and shank cutting processes in a stacked manner, and so on. Each time interval T is obtained... x and time interval B x The system will compare these time intervals with time intervals T1 and B1 and calculate the rate of change η of the process duration. When the rate of change η is greater than a value C, the host computer will initiate an adaptive adjustment.

[0044] The implementation method of the above adaptive adjustment action is as follows:

[0045] like Figure 8 As shown, when the rate of change η > C, the host computer controls the pumping fluid flow rate of the electrically controlled unidirectional variable oil pump 44 to increase by D%, thereby increasing the speed of the hydraulic motor. Simultaneously, the host computer controls the pumping fluid pressure of the electrically controlled pressure regulating valve to increase by E%, thereby increasing the thrust of the sawing cylinder. The next round of edge trimming and shank trimming is then performed, obtaining the time interval T. x+1 and time interval B x+1 The host computer recalculates the rate of change η. If the newly calculated rate of change η ≤ C, then the time interval T is... x and time interval B x The previous data is popped from the stack and renamed as time interval T1 and time interval B1. The above process is repeated until the rate of change η>C, and the pumping flow rate of the electronically controlled unidirectional variable oil pump and the pumping pressure of the electronically controlled pressure regulating valve both reach their maximum values. This indicates that the saw blade can no longer complete the sawing of the material handle according to the original process time, so the saw blade needs to be replaced in time.

[0046] Alternatively, in one possible implementation of the fourth aspect, the rate of change η is calculated as η = (T x +B x ―(T1+B1)) / (T1+B1)×100%.

[0047] Optionally, the value of C is 3%-5%, the value of D is 2-5, and the value of E is 2-5.

[0048] Optionally, the host computer also synchronously receives the position signal emitted by the grating ruler guide rail. The computing module in the host computer obtains the speed and acceleration signals of the slide plate movement during the cutting handle process by calculating the first and second derivatives of the position signal with respect to time per unit time.

[0049] A fifth aspect of the present invention provides a device structure and a working method for changing the saw blade of the cutting shank without stopping the machine.

[0050] The sawing module has slide plate A and slide plate B mounted on the grating ruler guide rail. A connecting block is fixedly mounted on the bottom of slide plate A, which is connected to the moving end of the sawing cylinder. An electromagnet is fixedly mounted on the side of slide plate B, and a metal block is fixedly mounted on the side of slide plate A.

[0051] The electromagnet and the metal block are arranged opposite each other. When the electromagnet is energized, the magnetic field generated attracts and fixes the metal block, thus making the electromagnet and the metal block a connected whole. When the electromagnet is not working, it loses its magnetic attraction to the metal block, and the two separate. The host computer output port is connected to a DC relay, which controls the on and off of the electromagnet power supply circuit. The saw blades A and B, as well as their motion actuators, are respectively fixedly mounted on slide plates A and B.

[0052] The working process of the edge trimming machine module is as follows:

[0053] Step 1: Use saw blade A for cutting the shank. At this time, the electromagnet is not working, and slide plate B is disengaged from slide plate A. The hydraulic motor driving saw blade B is deactivated. The operator determines whether saw blade A is close to needing replacement by using an adaptive adjustment method. Since saw blade B is not rotating, the operator can replace it online.

[0054] Step 2: When it is determined that the lifespan of saw blade A is nearing its limit, switch to saw blade B for the cutting of the material shank. At this time, the electromagnet is energized, slide plates A and B are connected, and the hydraulic motor driving saw blade A is deactivated. The sawing module uses saw blade B for the cutting of the material shank. Simultaneously, a signal to replace saw blade A is sent to the host computer and personnel.

[0055] Step 3: The operator goes to the site and replaces the non-rotating saw blade A.

[0056] Optionally, the metal block is made of iron-based or nickel-based high magnetic flux metal material, and a plastic protective pad is installed on the side of the metal block that contacts the electromagnet to prevent the electromagnet from being damaged by impact.

[0057] Finally, the beneficial effects of this invention can be summarized as follows:

[0058] 1) It enables sawing of the material handle while automatically trimming the edges, reducing labor costs and improving efficiency;

[0059] 2) Achieve a constant process time for completing the trimming and shank cutting processes, avoiding production cycle drift on the casting island;

[0060] 3) Enables non-stop replacement of cutting shank saw blades, significantly reducing downtime and maintenance frequency in the foundry island;

[0061] 4) Achieve longer saw blade life and significantly reduce the cost of saw blades in use. Attached Figure Description

[0062] Figure 1 This is a schematic diagram of the structure of the casting blank;

[0063] Figure 2 This is a schematic diagram illustrating the overall structure of the device and the principle of the edge-cutting process of the present invention;

[0064] Figure 3 This is a magnified view of a portion of the cutting die in the closed state.

[0065] Figure 4 This is a schematic diagram of the sawing module structure;

[0066] Figure 5 A schematic diagram of a saw blade structure with radial guide grooves;

[0067] Figure 6 This is a schematic diagram illustrating the hydraulic control principle of the edge-cutting process in the adaptive control module.

[0068] Figure 7 A schematic diagram of the hydraulic control principle for the sawing process of the adaptive control module;

[0069] Figure 8 A schematic diagram of a saw blade structure with spiral guide grooves;

[0070] Figure 9 A flowchart illustrating the workflow for adaptively adjusting actions;

[0071] Figure 10 This is a schematic diagram of a sawing module with dual saw blades.

[0072] Figure 11 This is a partially enlarged schematic diagram illustrating the principle of using an electromagnet to connect two sliding plates.

[0073] 1. Casting blank; 100. Casting product; 101. Draft handle; 102. Streamline; 103. Overflow groove.

[0074] 5. Trimming machine module, 6. Trimming machine fixed template, 7. Trimming die fixed template, 8. Trimming die moving template, 9. Trimming die moving template, 10. Trimming cylinder, 11. Trimming die fixed mold, 12. Trimming die moving mold, 13. Trimming device, 20. Sawing module, 21. Sawing cylinder, 22. Grating ruler guide rail, 24. Connecting block, 25. Slide plate, 26. Lubricating oil pipe, 27. Limit switch A, 271. Limit stop, 272. Limit switch B, 28. Hydraulic motor, 29. Mounting base, 31. Bearing seat, 32. 33. Connecting shaft, 34. Mounting flange, 35. Saw blade, 36. Base plate, 341. Guide channel A, 342. Guide channel B, 343. Baffle plate, 344. Enclosed channel, 345. Inflow section, 346. Outflow section, 42. Oil replenishment pump, 43. Check valve, 44. Electrically controlled one-way variable oil pump, 45. Overflow valve A, 46. Overflow valve B, 50. Electrically controlled pressure regulating valve, 51. Three-position solenoid valve, 70. Saw blade A, 71. Saw blade B, 72. Electromagnet, 73. Metal block, 74. Slide plate A, 75. Slide plate B. Detailed Implementation

[0075] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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.

[0076] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented in sequences other than those illustrated or described herein.

[0077] It should be understood that in the various embodiments of the present invention, the sequence number of each process does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0078] It should be understood that in this invention, "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0079] It should be understood that in this invention, "multiple" refers to two or more. "And / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "Contains A, B, and C", "Contains A, B, and C" means that all three A, B, and C are contained; "Contains A, B, or C" means that one of A, B, and C is contained; "Contains A, B, and / or C" means that any one, two, or three of A, B, and C are contained.

[0080] It should be understood that in this invention, "B corresponding to A", "B corresponding to A", "A and B correspond", or "B and A correspond" means that B is associated with A, and B can be determined based on A. Determining B based on A does not mean determining B solely based on A; B can also be determined based on A and / or other information. Matching A and B is defined as a similarity between A and B that is greater than or equal to a preset threshold.

[0081] Depending on the context, "if" as used here can be interpreted as "when," "when," "in response to determination," or "in response to detection."

[0082] Example 1.

[0083] like Figure 1 As shown, the casting blank 1 to which the apparatus and method of the present invention are applicable includes the following features: casting product 100, sprue 101, runner 102, and overflow groove 103. The casting blank 1 in the figure is a two-piece casting scheme, meaning two casting products are produced in a single casting process. Since different casting products have specific structural characteristics, other casting blanks that fully or partially possess the above-mentioned features and apply the technical features described in this invention should all fall within the protection scope of this invention.

[0084] The present invention proposes a horizontal casting island edge trimming and cutting handle device, which includes an edge trimming machine module 5, a sawing module 20 and an adaptive control module.

[0085] like Figure 2 and Figure 3As shown, the trimming machine module 5 includes a fixed trimming template 6, a fixed trimming template 7, a moving trimming template 8, a moving trimming template 9, a trimming cylinder 10, a fixed trimming mold 11, and a moving trimming mold 12. The fixed trimming template 7 is fixedly installed on the upper surface of the fixed trimming template 6, and the moving trimming template 8 is fixedly installed on the lower surface of the moving trimming template 9. The trimming machine module 5 has two working states: open mold state and closed mold state. When the trimming machine module 5 is in the open mold state, the moving trimming template 9 is in the highest position; when the trimming machine module 5 is in the closed mold state, the moving trimming template 9 is in the lowest position, and the fixed trimming mold 11 and the moving trimming mold 12 fix the spatial position of the casting blank 1. When the trimming machine module 5 is in the open mold state, the casting blank 1 is placed in the fixed trimming mold 11 by a robot or manually, and then the moving trimming template 9 is controlled by the trimming cylinder 10 to move downward until the trimming machine module 5 is in the closed mold state. During the transition from the open mold state to the closed mold state of the above-mentioned trimming machine module 5, the trimmer 13 on the moving mold 12 of the trimming mold breaks off the overflow groove 103 around the casting blank 1.

[0086] like Figure 4 As shown, the sawing module 20 is mounted on the fixed template 7 of the edge trimming machine. The sawing module 20 includes a sawing cylinder 21, a grating ruler guide rail 22, a connecting block 24, a sliding plate 25, a lubricating oil pipe 26, a limit switch A27, a limit stop 271, a limit switch B272, a hydraulic motor 28, a mounting base 29, a bearing seat 31, a connecting shaft 32, a mounting flange 33, a saw blade 34, and a base plate 36. The sliding plate 25 is mounted on the grating ruler guide rail 22 and can slide horizontally along the grating ruler guide rail 22. The connecting block 24 is fixedly mounted on the bottom of the sliding plate 25 and is also connected to the moving end of the sawing cylinder 21. The sawing cylinder 21 and the grating ruler guide rail 22 are fixedly mounted on the base plate 36. The movement of the sliding plate 25 on the grating ruler guide rail 22 is synchronized with the extension and retraction movement of the sawing cylinder 21. The above structure enables the sliding plate 25 to slide horizontally on the grating ruler guide rail 22 under the drive of the sawing cylinder 21. A hydraulic motor 28 is fixedly mounted on a mounting base 29, which in turn is fixedly mounted on a slide plate 25. The power output end of the hydraulic motor 28 is sequentially connected to a connecting shaft 32, a mounting flange 33, and a saw blade 34. The connecting shaft 32 is supported by two bearings, and the bearing housing 31 is fixedly mounted on the slide plate 25. This structure enables the saw blade 34 to move horizontally via the sawing cylinder 21. A lubrication oil pipe 26 connects the lubrication oil supply device to the central area of ​​the saw blade 34. Limit switches A27 and B272 are fixedly mounted on the side of the grating ruler guide rail 22, and a travel stop 271 is fixedly mounted on the side of the slide plate 25.

[0087] like Figure 5As shown. Preferably, a guide groove 341 is provided on the side of the saw blade 34; during the rotation of the saw blade, the guide groove guides the lubricating oil to the outer surface of the saw blade, and the lubricating oil cools the entire saw blade as it flows through the saw blade body.

[0088] Furthermore, the direction of the guide groove 341 is a radiating structure that starts from the central region of the saw blade 34 and extends outward. The depth of the guide groove 341 is less than or equal to 30% of the thickness of the saw blade 34, and the width of the guide groove 341 is greater than or equal to 0.1 mm.

[0089] Furthermore, the depth of the guide groove 341 is unevenly distributed, with the maximum depth value near the center of the saw blade 34 and the depth value gradually decreasing away from the center of the saw blade 34.

[0090] Furthermore, the maximum depth of the guide groove 341 near the center of the saw blade 34 is defined as Dmax, where Dmax is equal to 30% of the thickness of the saw blade 34; the minimum depth of the guide groove 341 far from the center of the saw blade 34 is defined as Dmin, where Dmin is greater than or equal to 0.1 mm; if the distance from a certain point of the guide groove 341 to the center of the saw blade 34 is r, and the maximum radius of the guide groove 341 from the center of the saw blade 34 is R, then the depth Dr of the guide groove 341 at that point can be easily calculated using the formula Dr = (1 - r / R)Dmax + Dmin; for example, when r = 0.1R, Dr = 0.9Dmax + Dmin; when r = R, Dr = Dmin. The advantage of varying the depth of the aforementioned guide groove 341 is that it enhances the flow guiding performance of the guide groove 341. The lubricating oil enters from the guide groove 341 near the center end of the saw blade 34. During the process of transmission to the far center end of the saw blade 34, the flow rate of the lubricating oil gradually increases under the action of centrifugal force, but the depth of the guide groove 341 gradually decreases. The superposition of the two effects causes the lubricating oil to overflow from the end of the guide groove 341 that is far from the center of the saw blade. Since more lubricating oil can accurately enter the sawing position, the cooling and lubrication effect of the lubricating oil can be more fully utilized. At the same time, the lubricating oil can also cool the surface of the saw blade during the transmission process on the surface of the saw blade 34.

[0091] Preferably, the hydraulic motor 28 is a unidirectional fixed displacement hydraulic motor.

[0092] The adaptive control module includes a host computer, a replenishing pump 42, a one-way valve 43, an electrically controlled one-way variable oil pump 44, an overflow valve A45, and an overflow valve B46. Figure 6As shown, hydraulic oil sequentially passes through replenishing pump 42, check valve 43, and electrically controlled one-way variable oil pump 44 to reach hydraulic motor 28, controlling hydraulic motor 28 to rotate in a specific direction. Relief valve A45 and relief valve B46 are used to protect the hydraulic pressure at hydraulic motor 28 and replenishing pump 42 from overload, respectively. The flow rate of electrically controlled one-way variable oil pump 44 is controlled by the host computer, thereby controlling the speed of hydraulic motor 28.

[0093] Preferably, the sawing cylinder 21 is a piston type.

[0094] like Figure 7 As shown, preferably, the adaptive control module further includes an electronically controlled pressure regulating valve 50 and a three-position solenoid valve 51; the electronically controlled pressure regulating valve 50 and the three-position solenoid valve 51 are both located in the hydraulic control circuit of the sawing cylinder 21, and the hydraulic oil passes through the oil replenishment pump, the electronically controlled pressure regulating valve 50 and the three-position solenoid valve 51 in sequence to reach the sawing cylinder 21, controlling the working state of the sawing cylinder 21, including the extended state, the holding state and the retracted state;

[0095] The host computer controls the fluid pressure in the hydraulic control circuit of the sawing cylinder 21 through the electrically controlled pressure regulating valve 50, thereby controlling the thrust of the sawing cylinder 21. In the figure, the sawing cylinder 21 is in the holding state.

[0096] Example 2.

[0097] Example 2 has the same effect as Example 1, but the structure is improved.

[0098] like Figure 7 As shown, the first improvement in Embodiment 2 is that a guide groove B342 is provided on the side of the saw blade 34; during the rotation of the saw blade, the guide groove B342 guides the lubricating oil to the outer surface of the saw blade 34, and the lubricating oil cools the entire saw blade 34 as it flows through the body of the saw blade 34.

[0099] The flow guide groove B342 extends outward from the central area of ​​the saw blade 34 in a spiral radiating pattern. The depth of the flow guide groove B342 is less than or equal to 30% of the thickness of the saw blade 34, and the width of the flow guide groove B342 is greater than or equal to 0.2 mm.

[0100] Preferably, the number of guide grooves B342 is greater than or equal to 1, and each guide groove B342 is symmetrically distributed around the central axis of the saw blade.

[0101] Preferably, if there are 4 guide channels B342, the deflection angle of each adjacent guide channel B342 in the circumferential direction is 90 degrees, and the guide channels B342 do not intersect each other.

[0102] The second improvement in Embodiment 2 is that a baffle 343 is tightly fitted on the side of the saw blade 34 where the guide groove B342 is located. During the process of the guide groove B342 guiding lubricating oil to the outer surface of the saw blade 34, the baffle 343 restricts the flow of lubricating oil within the guide groove B342. The baffle 343 and the guide groove B342 together form a closed channel 344. When the saw blade 34 rotates at high speed, the end of the closed channel 344 near the cutting edge of the saw blade 34 is under low pressure, and the end away from the cutting edge is under high pressure. The pressure difference between the two ends directly pumps the lubricating oil from the central area of ​​the saw blade 34 to the outer surface of the saw blade 34, accelerating the cooling of the outer surface area and enhancing lubrication during the sawing process.

[0103] Preferably, the outer diameter of the baffle 343 is smaller than the outer diameter of the saw blade 34, and the baffle 343 divides each guide channel B342 into an inflow section 345, a closed channel 344, and an outflow section 346.

[0104] Preferably, the outer diameter of the baffle 343 is 50%-85% of the outer diameter of the saw blade 34; the outer diameter of the saw blade 34 is the maximum diameter of the saw blade 34.

[0105] The workflow of Example 1 and Example 2 is as follows:

[0106] Step 1: After the casting machine completes one casting process, the trimming machine module 5 is in the open mold state; the robot arm places the casting blank 1 into the trimming mold fixed mold 11.

[0107] Step 2: The oil cylinder 10 of the trimming machine controls the trimming machine module 5 to be in the closed mold state. During the mold closing process of the trimming machine module 5, the trimmer 13 breaks off the overflow groove 103 around the casting blank 1.

[0108] Step 3: The robotic arm grips the material handle 101, while the adaptive control module drives the hydraulic motor 28 to rotate, thereby driving the saw blade 34 to rotate, and the lubrication pipe 26 supplies lubricating oil to the central area of ​​the saw blade 34.

[0109] Step 4: The sawing cylinder 21 drives the slide plate 25 to slide horizontally on the grating ruler guide rail 22. Figure 4 (in the lower right direction), the saw blade 34 passes through the connection between the horizontal runner 102 and the casting product 100, thereby separating the horizontal runner 102 together with the material handle 101 from the casting blank 1; when the stroke stop 271 triggers the stroke switch B272, the equipment sends a signal that the sawing process is completed.

[0110] Step 5: The sawing cylinder 21 drives the slide plate 25 to slide horizontally in the opposite direction on the grating ruler guide rail 22. Figure 4 (From the upper left direction) until the travel stop 271 triggers the travel switch A27, and the sawing process is completed.

[0111] Step 6: The hydraulic cylinder 10 of the trimming machine controls the trimming machine module 5 to be in the mold opening state. The robot arm takes away the material handle and the product and places them on the material handle basket and the finished product conveyor belt, respectively.

[0112] Because saw blades inevitably wear and dull during prolonged continuous operation, the processing time of the fourth step will vary significantly. To ensure that the processing time of the fourth step remains constant, the adaptive control module remains operational throughout the fourth step. The specific operating method is as follows:

[0113] The host computer receives trigger signals from limit switches A27 and B272. The timing module in the host computer obtains the time interval T elapsed after triggering limit switches A27 and B272 sequentially; this time interval T is the duration of the previous sawing operation. Subsequently, the timing module in the host computer obtains the time interval B elapsed after triggering limit switches B272 and A27 sequentially; this time interval B is the duration it took for the sawing cylinder 21 to drive the saw blade 34 back to the original position of the sawing operation. The storage module in the host computer records each obtained time interval T1, T2, T3… and time interval B1, B2, B3…, forming the time interval T sequence and the time interval B sequence.

[0114] The speed of the hydraulic motor 28 is adjusted by the electrically controlled unidirectional variable oil pump 44, and the thrust of the sawing cylinder 21 is adjusted by the electrically controlled pressure regulating valve 50. The ideal process parameters for the cutting handle are manually determined. A brand new saw blade 34 is used to complete the cutting handle process. The time interval sequence T and time interval sequence B are stored as T1 and B1 data, respectively. Then, steps one through six are repeated. The storage module in the host computer stores the time intervals T2 and B2 of the second round of edge trimming and handle cutting processes in a stacked manner, and so on. Each time interval T is obtained... x and time interval B x The system will compare these time intervals with time intervals T1 and B1 and calculate the rate of change η of the process duration. When the rate of change η is greater than a value C, the host computer will initiate an adaptive adjustment.

[0115] The method for calculating the rate of change η is η = (T x +B x ―(T1+B1)) / (T1+B1)×100%.

[0116] The implementation method of the above adaptive adjustment action is as follows:

[0117] like Figure 9As shown, when the rate of change η > C, the host computer controls the pumping fluid flow rate of the electrically controlled unidirectional variable oil pump 44 to increase by D%, thereby increasing the speed of the hydraulic motor 28. Simultaneously, the host computer controls the pumping fluid pressure of the electrically controlled pressure regulating valve 50 to increase by E%, thereby increasing the thrust of the sawing cylinder 21. The next round of edge trimming and shank trimming processes is then performed, obtaining the time interval T. x+1 and time interval B x+1 The host computer recalculates the rate of change η. If the newly calculated rate of change η ≤ C, then the time interval T is... x and time interval B x The previous data is popped from the stack and renamed as time interval T1 and time interval B1. The above process is repeated until the rate of change η>C and the pumping flow rate of the electronically controlled unidirectional variable oil pump 44 and the pumping pressure of the electronically controlled pressure regulating valve 50 reach their maximum values. This indicates that the lifespan of the saw blade 34 has been exhausted and the saw blade needs to be replaced in time for the subsequent cutting of the cutting handle.

[0118] Preferably, the value of C is 3%-5%, the value of D is between 2 and 5, and the value of E is between 2 and 5.

[0119] During the above process, the host computer also simultaneously receives the position signal emitted by the grating ruler guide rail 22. The computing module in the host computer obtains the speed and acceleration signals of the slide plate 25 moving during the cutting handle process by calculating the first and second derivatives of the position signal with respect to time per unit time.

[0120] It should be noted that the guide groove 341 in Embodiment 1 and the guide groove B342 in Embodiment 2 are essential technical features for achieving stable adaptive control of the sawing module 20. This invention maintains the sawing process at a constant process duration by adaptively controlling the rotational speed and feed force of the saw blade 34. If a conventional direct injection lubricating oil cooling method is adopted, the wear of the saw blade 34 will break the original thermal equilibrium conditions, causing the temperature of the saw blade 34 to rise rapidly, which will lead to the rapid failure of the saw blade. Conversely, as the rotational speed of the saw blade 34 increases, the guiding and pumping effect of the guide groove 341 and the guide groove B342 on the lubricating oil is gradually enhanced, which can compensate for the increased temperature rise caused by the wear of the saw blade 34.

[0121] Example 3.

[0122] Compared with Examples 1 and 2, Example 3 enables the replacement of the cutting shank saw blade without shutting down the machine, which can significantly reduce the downtime and frequency of maintenance on the casting island.

[0123] The technical feature that distinguishes Embodiment 3 from Embodiments 1 and 2 is that the sawing module 20 is equipped with saw blade A70 and saw blade B71. When saw blade A70 is detected to be close to being scrapped, the machine is switched to use saw blade B71 for the cutting of the material handle without stopping the machine. At the same time, a signal to replace saw blade A70 is sent to the host computer and the machine tool operator. The host computer selectively drives and controls the rotation of saw blade A70 and saw blade B71.

[0124] like Figure 10 As shown, in the sawing module 20 of this embodiment, a slide plate A74 and a slide plate B75 are installed on the grating ruler guide rail 22. A connecting block 24 is fixedly installed at the bottom of the slide plate A74, which is connected to the moving end of the sawing cylinder 21. An electromagnet 72 is fixedly installed on the side of the slide plate B75, and a metal block 73 is fixedly installed on the side of the slide plate A74.

[0125] like Figure 11 As shown, the electromagnet 72 and the metal block 73 are arranged opposite each other. When the electromagnet 72 is energized, the magnetic field generated magnetically attracts and fixes the metal block 73, thus making the electromagnet 72 and the metal block 73 a connected whole. When the electromagnet 72 is not working, the electromagnet 72 loses its magnetic attraction to the metal block 73, and the two separate. Under the condition that the electromagnet 72 is energized, the slide plate B75, together with the slide plate A74, can slide horizontally on the grating ruler guide rail 22 under the drive of the sawing cylinder 21. Under the condition that the electromagnet 72 is energized, the slide plate B75 and the slide plate A74 are disengaged, and the slide plate B75 cannot slide horizontally on the grating ruler guide rail 22. The upper computer output port is connected to a DC relay, which controls the conduction and disconnection of the power supply circuit of the electromagnet 72, that is, controls whether there is a magnetic attraction between the electromagnet 72 and the metal block 73.

[0126] The saw blades A70 and B71, and their motion actuators, are respectively fixedly mounted on the slide plate A74 and slide plate B75.

[0127] The working process of the sawing module 20 in this embodiment is as follows:

[0128] Step 1: The sawing module 20 uses saw blade A70 to cut the material handle. At this time, the electromagnet 72 is not working, and the slide plate B75 and slide plate A74 are disengaged. The hydraulic motor that drives the rotation of saw blade B71 is in a non-working state, so saw blade B71 does not rotate. The adaptive control module described in Example 2 determines whether saw blade A70 is close to replacement, i.e., the rate of change η > C, and the pumping flow rate of the electrically controlled unidirectional variable oil pump 44 and the pumping pressure of the electrically controlled pressure regulating valve 50 reach their maximum values.

[0129] Step 2: When it is determined that the lifespan of saw blade A70 is nearing its limit, switch to saw blade B71 for the cutting of the shank. At this time, electromagnet 72 is energized, and slide plates A74 and B75 are connected, disabling the hydraulic motor that drives saw blade A70, so saw blade A70 does not rotate; the hydraulic motor that drives saw blade B71 is activated, and sawing module 20 uses saw blade B71 for the cutting of the shank, while simultaneously sending a signal to the host computer and personnel to replace saw blade A.

[0130] Step 3: The operator goes to the site and replaces the non-rotating saw blade A70. After the replacement is completed, the operator controls the sawing module 20 to return to the state at the beginning of Step 1.

[0131] In the first step above, since the saw blade B71 does not rotate, the operator can replace the saw blade B71 online.

[0132] In the second step described above, since saw blades A70 and B71 are located on opposite sides of the material handle, the travel length of the sawing cylinder 21 is the same, but the directions of travel are different when using different saw blades to cut the material handle. Saw blade A70 cuts the material handle during the extended stroke of the sawing cylinder 21, while saw blade B71 cuts the material handle during the retracted stroke of the sawing cylinder 21. To achieve the above function, the center position of the material handle is established as the process origin. When the sawing cylinder 21 is in a half-extended state (the cylinder rod extension length is half of the fully extended length), the centers of saw blades A70 and B71 are symmetrical with the process origin. During the continuous operation of the sawing module 20, the position signals of slide plates A754 and B75 are fed back to the adaptive control module through the grating ruler guide rail 22 to perform closed-loop control of the relative position of the material handle and the saw blade, thereby satisfying the above position symmetry requirements.

[0133] Preferably, the metal block 73 is made of iron-based or nickel-based high magnetic flux metal material, and a plastic protective pad is installed on the side of the metal block 73 that contacts the electromagnet 72 to prevent the electromagnet 72 from being damaged by impact.

[0134] It should be noted that the motion actuators in Embodiments 1, 2, and 3 are all hydraulically driven. Replacing the drive form of different motion actuators without altering the structure or principle of the device is within the scope of protection of this invention. Examples include driving the saw blade rotation with a motor, driving the saw blade feed with a motor, driving the saw blade feed with a cylinder, driving the electric saw rotation with gas, or adding a gearbox to the transmission route. This also includes simple changes to the transmission form, such as using magnetic levitation bearings to support the connecting shaft, or using expansion sleeves instead of flanges. It also includes minor improvements easily obtained by those skilled in the art, such as using atomized lubricating oil to lubricate and cool the saw blade, or using low-temperature gas to cool the saw blade.

Claims

1. A casting edge trimming and cutting shank device for a horizontal casting island, characterized in that: It includes a trimming machine module (5), a sawing module (20), and an adaptive control module to perform trimming and cutting shank processing on the casting blank (1); The casting blank (1) includes the following features: casting product (100), sprue (101), runner (102) and overflow groove (103). The trimming machine module (5) includes a trimming die fixed template (7), a trimming die moving template (8), a trimming die fixed mold (11), and a trimming die moving mold (12). The sawing module (20) is installed on the edge-cutting template (7); The adaptive control module includes a host computer, a replenishing pump (42), a check valve (43), an electrically controlled one-way variable oil pump (44), an overflow valve A (45), and an overflow valve B (46); the hydraulic oil passes through the replenishing pump (42), the check valve (43), and the electrically controlled one-way variable oil pump (44) in sequence to reach the hydraulic motor (28); the host computer is electrically connected to the electrically controlled one-way variable oil pump (44) to control the flow rate of the electrically controlled one-way variable oil pump (44), thereby controlling the speed of the hydraulic motor (28); The adaptive control module also includes an electrically controlled pressure regulating valve (50) and a three-position solenoid valve (51), both of which are electrically connected to the host computer. The electrically controlled pressure regulating valve (50) and the three-position solenoid valve (51) are both located in the hydraulic control circuit of the sawing cylinder (21). The host computer controls the liquid pressure in the hydraulic control circuit of the sawing cylinder (21) through the electrically controlled pressure regulating valve (50), thereby controlling the thrust of the sawing cylinder (21). The three working positions of the three-position solenoid valve (51) correspond to the extension, holding and retraction states of the sawing cylinder (21) in sequence. The trimming machine module (5) further includes: a trimming machine fixed template (6), a trimming machine moving template (9), a trimming machine cylinder (10), and a trimmer (13); the trimming die fixed template (7) is fixedly installed on the upper surface of the trimming machine fixed template (6), the trimming die moving template (8) is fixedly installed on the lower surface of the trimming machine moving template (9), and the trimmer (13) is installed below the trimming die moving template (12); The sawing module (20) includes a sawing cylinder (21), a grating ruler guide rail (22), a connecting block (24), a sliding plate (25), a lubricating oil pipe (26), a limit switch A (27), a limit stop (271), a limit switch B (272), a hydraulic motor (28), a mounting base (29), a bearing seat (31), a connecting shaft (32), a mounting flange (33), a saw blade (34), and a base plate (36). The slide plate (25) is mounted on the grating ruler guide rail (22), and the connecting block (24) is fixedly mounted on the bottom of the slide plate (25) and is also connected to the moving end of the sawing cylinder (21); the sawing cylinder (21) and the grating ruler guide rail (22) are fixedly mounted on the base plate (36); the hydraulic motor (28) is fixedly mounted on the mounting base (29), which is fixedly mounted on the slide plate (25), and the power output end of the hydraulic motor (28) is connected to the connecting shaft (32), the mounting flange (33) and the saw blade (34) in sequence; the connecting shaft (32) is supported by the bearing, and the bearing seat (31) is fixedly mounted on the slide plate (25); the limit switch A (27) and the limit switch B (272) are fixedly mounted on the side of the grating ruler guide rail (22), and the travel stop block (271) is fixedly mounted on the side of the slide plate (25); The saw blade (34) is provided with a guide groove (341) or a guide groove B (342) on its side. During the rotation of the saw blade, the guide groove (341) or the guide groove B (342) guides the lubricating oil to the outer surface of the saw blade (34). The lubricating oil cools the entire saw blade (34) as it flows through the body of the saw blade (34). The direction of the guide groove (341) is a radiating structure that starts from the central area of ​​the saw blade (34) and extends to the periphery of the saw blade (34). The depth of the guide groove (341) is less than or equal to 30% of the thickness of the saw blade (34), and the width of the guide groove (341) is greater than or equal to 0.1 mm. The depth of the guide groove (341) is unevenly distributed. The maximum depth is Dmax near the center of the saw blade (34). As the depth moves away from the center of the saw blade (34), the depth of the guide groove (341) gradually decreases, with the minimum depth being Dmin. Let r be the straight-line distance from a point on the guide groove (341) to the center of the saw blade (34), and let R be the maximum radius of the guide groove (341) from the center of the saw blade (34). Then the depth Dr of the guide groove (341) at that point can be easily calculated by the formula Dr=(1-r / R)Dmax+Dmin. The direction of the guide groove B (342) is to extend outward from the central area of ​​the saw blade (34) in a spiral scattering pattern; the depth of the guide groove B (342) is less than or equal to 30% of the thickness of the saw blade (34), and the width is greater than or equal to 0.2 mm; the number of the guide groove B (342) is greater than or equal to 1, and each guide groove B (342) is symmetrically distributed about the central axis of the saw blade; A baffle plate (343) is tightly installed on the side of the saw blade where the guide groove B (342) is provided; the baffle plate (343) and the guide groove B (342) are combined to form a closed channel (344). The baffle (343) is annular, and its outer diameter is 50%-85% of the outer diameter of the saw blade (34). The baffle (343) divides each guide channel B (342) into an inflow section (345), a closed channel (344), and an outflow section (346).

2. An automated method for trimming casting edges and cutting shanks using the device described in claim 1, characterized in that: Including steps A)-F) Step A), after the casting machine completes one casting process, the trimming machine module (5) is in the open mold state, and the robot arm places the casting blank (1) into the trimming mold fixed mold (11); Step B), the trimming machine cylinder (10) controls the trimming machine module (5) to be in the closed mold state. During the mold closing process of the trimming machine module (5), the trimmer (13) breaks the overflow groove (103) around the casting blank (1). Step C), the robotic arm grips the material handle (101), while the adaptive control module drives the hydraulic motor (28) to rotate, thereby driving the saw blade (34) to rotate, and the lubricating oil pipe (26) supplies lubricating oil to the central area of ​​the saw blade (34); In step D), the sawing cylinder (21) drives the slide plate (25) to slide horizontally on the grating ruler guide rail (22), and the saw blade (34) passes vertically through the connection between the transverse runner (102) and the casting product (100), thereby separating the transverse runner (102) together with the material handle (101) from the casting blank (1); when the stroke stop block (271) triggers the limit switch B (272), the equipment sends a signal to complete the sawing process; Step E), the sawing cylinder (21) drives the slide plate (25) to slide horizontally in the opposite direction on the grating ruler guide rail (22) until the travel stop (271) triggers the travel switch A (27), and the sawing process is completed; In step F), the oil cylinder (10) of the trimming machine controls the trimming machine module (5) to be in the mold opening state, and the robot arm takes away the material handle (101) and the product (100) and places them on the material handle basket and the finished product conveyor belt respectively.

3. The automated casting edge trimming and shank trimming method according to claim 2, characterized in that: The adaptive control module remains operational during step D), specifically by the following method: The host computer receives the trigger signals from limit switch A (27) and limit switch B (272); the timing function module in the host computer obtains the time interval T that has elapsed since the limit switches A (27) and B (272) were triggered one after the other, and the time interval T is the duration of the previous sawing process; The timing function module in the host computer obtains the time interval B between the successive triggering of limit switch B (272) and limit switch A (27). The time interval B is the duration of the previous sawing cylinder (21) driving the saw blade (34) back to the original position of the sawing process. The storage module in the host computer records the time intervals T1, T2, T3... and B1, B2, B3... obtained each time, forming the time interval T sequence and the time interval B sequence; The speed of the hydraulic motor (28) is adjusted by the electronically controlled one-way variable oil pump (44), and the thrust of the sawing cylinder (21) is adjusted by the electronically controlled pressure regulating valve (50). The ideal cutting shank process parameters are determined manually, and a brand new saw blade (34) is used to complete the cutting shank process. The time interval T sequence and the time interval B sequence store the data of T1 and B1 respectively. Subsequently, steps A) to F) are repeated. The storage module in the host computer stores the time interval T2 and time interval B2 of the second round of edge trimming and cutting handle processes in a stack manner, and so on. Each time interval T is obtained x and time interval B x The computer will compare them with time intervals T1 and B1 and calculate the rate of change η of the process duration. When the rate of change η is greater than the value C, the host computer will start the adaptive adjustment action. The rate of change η is calculated as follows: η = (T x +B x ―(T1+B1)) / (T1+B1)×100%.

4. The automated casting edge trimming and cutting shank method according to claim 3, characterized in that: The method for implementing the adaptive adjustment action is as follows: When the rate of change η>C, the host computer controls the pump fluid flow of the electrically controlled unidirectional variable oil pump (44) to increase by D%, thereby increasing the speed of the hydraulic motor (28). At the same time, the host computer controls the pump fluid pressure of the electrically controlled pressure regulating valve (50) to increase by E%, thereby increasing the thrust of the sawing cylinder (21). Proceed to the next round of edge trimming and shank trimming processes to obtain the time interval T. x+1 and time interval B x+1 The host computer recalculates the rate of change η; If the newly calculated rate of change η ≤ C, then the time interval T will be... x and time interval B x Pop the previous data from the stack and rename them to time interval T1 and time interval B1; Repeat the above process until the rate of change η>C and the pumping flow of the electronically controlled unidirectional variable oil pump (44) and the pumping pressure of the electronically controlled pressure regulating valve (50) both reach their maximum values. This indicates that the lifespan of the saw blade (34) has been exhausted, and the host computer sends a signal to the operator that the saw blade (34) needs to be replaced.

5. The automated casting edge trimming and shank cutting method according to claim 3, characterized in that: The value C is between 3% and 5%, the value D is between 2 and 5, and the value E is between 2 and 5.

6. The casting edge trimming and cutting handle device for a horizontal casting island according to claim 1, characterized in that: The sawing module (20) also includes another saw blade, the motion actuator of which is fixedly mounted on another slide plate, which is also mounted on the grating ruler guide rail (22); A metal block (73) is fixedly installed on the side of the slide plate (25), and an electromagnet (72) is fixedly installed on the side of the other slide plate. The electromagnet (72) and the metal block (73) are arranged opposite to each other. The output port of the host computer is connected to a DC relay, and the DC relay controls the conduction and disconnection of the power supply circuit of the electromagnet (72) to control whether there is a magnetic attraction between the electromagnet (72) and the metal block (73). The metal block (73) is made of iron-based or nickel-based high magnetic flux metal material, and a plastic protective pad is installed on the side of the metal block (73) that contacts the electromagnet (72).

7. A method for changing the cutting shank saw blade without stopping the machine using the device described in claim 6, characterized in that: Including steps A) through C); Step A), the sawing module (20) uses the saw blade (34) to cut the material handle. The electromagnet (72) is not working, the slide plate (25) is disengaged from another slide plate, and the hydraulic motor that drives the other saw blade to rotate is in a non-working state. Step B), when the life of the saw blade (34) is close to the limit, switch to another saw blade to perform the cutting of the shank; at this time, the electromagnet (72) is energized, the slide plate (25) and the other slide plate are connected, the hydraulic motor that drives the saw blade (34) to rotate is put into a non-working state, the saw blade (34) does not rotate, the sawing module (20) uses another saw blade to perform the cutting of the shank, and at the same time sends a signal to the host computer and personnel to replace the saw blade (34); Step C), the operator goes to the site and replaces the non-rotating saw blade (34); The operator replaces the other saw blade online in step A). In step B), when the sawing cylinder (21) is in a semi-extended state, the center of the saw blade (34) and the center of the other saw blade are symmetrically distributed with respect to the center of the material handle.

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