Traction machine part casting machining device and method

Abstract

The invention discloses a traction machine part casting machining device and method.The device comprises a supporting frame, a first mold, a second mold, a third mold and a fourth mold, the second mold is fixedly arranged on the supporting frame, the third mold and the fourth mold are symmetrically arranged on the two sides of the top of the second mold correspondingly, and the first mold is arranged at the tops of the third mold and the fourth mold; a pouring gate is formed in the top of the first mold, a U-shaped frame is fixedly arranged at the bottom end of the second mold, a lifting plate is arranged in the U-shaped frame, a guide rod is slidably arranged on the lifting plate, knocking assemblies are arranged on the two sides of a telescopic rod, positioning grooves are formed in the top of the second mold, and channels are formed in the positioning grooves. By means of the four-mold structural design, accurate forming of a V-shaped or U-shaped groove is achieved, the two-way acting force design of the supporting plate and the pouring gate column and the unique pretreatment knocking and continuous vibration mechanism are adopted, the problems of stress concentration, demolding difficulty and the like in the traditional traction machine part casting process are effectively solved, and the casting quality and the production efficiency are remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of casting, and in particular to a device and method for casting a traction machine component. Background Art

[0002] The traction machine is the core power device in the elevator operation system, which is mainly composed of traction wheel, motor, brake, reducer and other components. Some key components need to be manufactured by casting process due to their complex structure and special force. These components usually include traction wheel, reducer housing, bearing seat, etc. These parts have high requirements for strength, hardness and dimensional accuracy.

[0003] In the manufacturing process of traction machine parts, the casting process mainly includes mold preparation, sand core making, smelting, pouring, cooling, cleaning and other processes.

[0004] Chinese patent document (publication number: CN117226071A) discloses a high-pressure casting machine rapid demoulding and ejection mechanism and a high-pressure casting machine, comprising: a demoulding plate; a demoulding cylinder installed and fixed on one side of the demoulding plate; a demoulding transition plate installed on the other side of the demoulding plate via a guide rail and relatively slidably; a positioning cylinder for driving the demoulding transition plate to slide relative to the demoulding plate; a mold demoulding connecting rod with one end side detachably locked to the demoulding transition plate and the other end side used to connect with the mold to be demoulded, wherein the demoulding transition plate is provided with a plurality of through holes formed by connecting a small hole portion and a large hole portion, and one end side of the mold demoulding connecting rod is adjacently formed with: a head portion with an outer diameter matching the large hole portion and a neck portion with an outer diameter matching the small hole portion, and a plurality of matching concave hole grooves matching the head portion of the mold demoulding connecting rod are provided on the other side surface of the demoulding plate corresponding to the through holes of the demoulding transition plate, thereby improving the work efficiency of the mold replacement personnel, and disassembling and replacing the demoulding connecting rod is faster and more convenient.

[0005] The outer periphery of the traction wheel has several closed V-shaped or U-shaped grooves, and the interior has a cavity structure. When using a metal casting mold for casting, it is easy to get stuck during demoulding, and the casting traction wheel is prone to damage and cracking during demoulding. During the demoulding process, a single point force is applied to the casting, which is easy to cause stress concentration and damage the casting, affecting the casting quality. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a casting processing device and method for traction machine parts. By setting upper, middle and lower molds, the middle mold is divided into two to form four molds for combined casting. The divided middle mold is conducive to the precise forming of V-shaped or U-shaped grooves, and is convenient for rapid and complete demolding, thereby ensuring the casting quality. During the casting process, a gate column is integrally formed, and a support plate that can move up and down is provided at the bottom of the sand core. The lifting plate and the connecting plate are driven upward by a cylinder to move upward together, so that the support plate lifts the bottom of the casting upward, and at the same time drives the gate column to pull up the top of the casting, thereby reducing the stress concentration of the casting and ensuring the casting quality. During the demolding process, the elastic component is driven by the cylinder to continuously knock on the traction wheel of the casting, thereby generating continuous vibration impact to accelerate the separation process between the casting and the sand core or the mold, thereby reducing the probability of tearing and damage to the casting during the demolding process, thereby further ensuring the casting quality.

[0007] In order to achieve the above object, the present invention adopts the following technical solution:

[0008] A casting processing device for traction machine parts comprises a support frame and a second mold for fixing a sand core and containing molten metal, the second mold is fixedly arranged on the support frame, the third mold and the fourth mold are symmetrically arranged on both sides of the top of the second mold, the first mold is arranged on the top of the third mold and the fourth mold, a gate is provided on the top of the first mold, and a cylinder assembly is provided on the first mold, the third mold and the fourth mold; a U-shaped frame is fixedly arranged on the bottom end of the second mold, a lifting plate is provided inside the U-shaped frame, a cylinder is provided at the bottom end of the U-shaped frame, a telescopic rod of the cylinder passes through the U-shaped frame and is detachably connected to the lifting plate, a plurality of guide rods are slidably arranged on the lifting plate, and the guide rods are fixedly installed between the bottom plate of the U-shaped frame and the support frame; knocking assemblies are provided on both sides of the telescopic rod; a plurality of positioning grooves are provided on the top of the second mold, and the positioning grooves Used to fix the sand core, the positioning grooves are each provided with channels; a plurality of vertical rods are fixed on the top of the lifting plate, the vertical rods correspond to the channels above, a support plate is fixed on the top of the vertical rods, the support plate is slidably installed in the channel, and the top of the support plate abuts the sand core; connecting plates are provided on both sides of the lifting plate, one end of the connecting plate is fixedly connected to the lifting plate, the other end of the connecting plate is close to the first mold, and the end of the connecting plate is detachably connected to a cross plate; after casting, the molten metal forms a casting in the mold, the molten metal at the gate forms a gate column, the casting and the gate column are integrally formed, and the gate column is connected and fixed to the connecting plate by a cross plate; when demolding, the cylinder drives the lifting plate and the connecting plate to move upward, so that the support plate lifts up the bottom of the casting, and at the same time drives the gate column to pull up the top of the casting, thereby reducing stress concentration of the casting.

[0009] Preferably, the knocking assembly includes a positioning rod, which is provided with several protrusions at intervals on the upper and lower parts, and an elastic assembly is provided on one side close to the protrusions. The top of the elastic assembly is fixedly connected to the bottom end of the lifting plate. When the cylinder drives the lifting plate and the elastic assembly to move upward, the elastic assembly abuts against the protrusions and is released to knock the lifting plate, thereby accelerating the separation of the casting from the mold.

[0010] Preferably, the elastic component includes an L-shaped plate, a sliding rod, a slider, a first spring, a first wedge block, a second spring and a second wedge block, the bottom plate of the L-shaped plate is arranged parallel to the lifting plate, the top ends of the adjacent side plates of the L-shaped plate are fixedly connected to the bottom end of the lifting plate, two sliding rods are fixedly arranged on the bottom plate of the L-shaped plate, one end of the sliding rod is fixedly connected to the lifting plate, and the other end is fixedly connected to the bottom plate of the L-shaped plate; a slider and a second spring are sleeved on the sliding rod, and the second spring is located at the bottom of the slider; a sliding groove is provided on the slider, and the first spring and the first wedge block are installed inside the sliding groove, and the inclined surface of the first wedge block is close to the protrusion; a second wedge block is fixedly arranged on the bottom plate of the L-shaped plate, the second wedge block is arranged perpendicular to the first wedge block, and the inclined surfaces of the two wedge blocks are parallel.

[0011] Preferably, the width of the inclined surface of the second wedge block is smaller than that of the first wedge block; the projection surfaces of the protrusion and the second wedge block do not intersect, and the projection surfaces of the protrusion and the second wedge block both intersect with the projection surface of the first wedge block.

[0012] Preferably, a detachable connecting joint is provided at the end of the telescopic rod and the bottom of the lifting plate, and a plurality of cams are provided on the end of the telescopic rod away from the cylinder, and the cams are distributed on upper and lower radial planes, and the cams are evenly spaced on the radial planes, and the upper and lower cams are positioned correspondingly, and there is a spacing between the upper and lower cams to form a channel; a shift rod is provided at the end of the telescopic rod, and the shift rod is rotatably arranged in the channels of the upper and lower cams.

[0013] Preferably, the shift rod includes a positioning ring, a first semi-arc rod and a locking protrusion, the outer periphery of the positioning ring is fixedly connected to the first semi-arc rod, the first semi-arc rod is arranged adjacent to the locking rod, a limit plate is arranged on the outer side of the first semi-arc rod, and the limit plate is fixedly connected to the locking rod; an arc-shaped guide strip is arranged on the locking rod, the end of the first semi-arc rod can abut against the first wedge block, and a plurality of locking protrusions are arranged inside the positioning ring; the positioning ring is installed in the channel of the upper and lower convex stops, when the locking protrusion corresponds to the position of the convex stop, the convex stop forms a support for the positioning ring, and when the locking protrusion and the convex stop are misaligned, the positioning ring falls freely without support.

[0014] Preferably, the striking component array is arranged in 2 groups, a second semi-arc rod is added to the positioning ring, and the first semi-arc rod and the second semi-arc rod are arranged in an array.

[0015] Preferably, the openings of the first semi-arc rod and the second semi-arc rod are oriented in opposite directions.

[0016] Preferably, the support plate is made of alumina.

[0017] Preferably, the method for processing using the above device comprises the following steps:

[0018] S1. Mould assembly:

[0019] S11, placing the sand core on the second mold, so that the six sector-shaped protrusions at the bottom of the sand core are respectively embedded in the six positioning grooves on the second mold, and the cylindrical structure of the sand core is placed in the corresponding blind holes of the second mold;

[0020] S12, spray the release agent evenly on the inner wall of all molds;

[0021] S13, merging the split middle mold, the third mold and the fourth mold to ensure accurate forming of the V-shaped or U-shaped groove;

[0022] S14, merging the first mold onto the middle mold to complete the mold assembly;

[0023] S2. Pouring:

[0024] S21, check the patency of two gates and vent holes at the top of the first mold;

[0025] S22, injecting the smelted molten metal into two pouring gates at the same time to ensure uniform pouring speed;

[0026] S23, the molten metal solidifies and forms in the mold to form a casting and a gate column integrally formed therewith;

[0027] S3, pretreatment demoulding:

[0028] S31, after the casting is sufficiently cooled, separating the first mold from the other molds;

[0029] S32, separating the middle mold, the third mold and the fourth mold;

[0030] S33, the through hole at one end of the horizontal plate is fixed on the gate column, and the other end is fixedly connected to the connecting plate with bolts;

[0031] S34, start the cylinder, and keep the telescopic rod and the lifting plate separated:

[0032] S341, causing the telescopic rod to drive the lever to reciprocate up and down under the constraint of the limit plate;

[0033] S342, pushing the first wedge block by the cooperation of the array of the first half arc rod and the second half arc rod, so that the first wedge block and the inclined surface of the second wedge block are squeezed, generating pre-treatment vibration, and the vibration wave propagates between the interface of the casting and the mold to break the microscopic bonding force;

[0034] S4, formal demoulding:

[0035] S41, the cylinder drives the telescopic rod to move upward;

[0036] S42, making the first half arc rod of the lever break away from the constraint of the limit plate;

[0037] S43, the first half arc rod contacts the upper arc guide strip and then rotates, driving the positioning ring to rotate so that the clamping convex and the convex stop are misaligned, and the positioning ring and the lever fall freely after losing support;

[0038] S44, the telescopic rod continues to rise, and the telescopic rod forms a fixed connection with the lifting plate through the connecting joint, and the cylinder drives the lifting plate and the connecting plate to move upward, and at the same time: the support plate pushes up the bottom of the casting through the vertical rod, and pulls up the top of the casting through the horizontal plate and the gate column to separate the casting from the mold;

[0039] S45, elastic component and protrusion cycle cooperation:

[0040] S451, the first wedge abuts against the protrusion, and the slider compresses the second spring;

[0041] S452. The first wedge block contacts the inclined surface of the second wedge block. The first wedge block compresses the first spring. The slider impacts the lifting plate under the restoring force of the second spring to form knocking vibration. Under the action of multiple continuous knocking, the bonding force between the casting and the sand core interface is uniformly weakened, and the formation of microscopic gaps facilitates air infiltration, reduces the vacuum adsorption force, and promotes the separation of the casting and the sand core.

[0042] Compared with the prior art, the present invention has the following beneficial effects:

[0043] 1. The traction machine component casting processing device of the present invention adopts a four-mold structure design, including an upper first mold, a middle third mold and a fourth mold, and a lower second mold. The middle mold, the third mold and the fourth mold are conducive to the precise molding of the V-shaped or U-shaped groove, and are convenient for rapid and complete demoulding, avoiding demoulding jamming or damage to the casting, and ensuring the casting quality; a gate column is integrally formed during the casting process of the traction wheel, and a support plate that can move up and down is arranged at the bottom of the sand core. The lifting plate and the connecting plate are driven by the cylinder to move upward together, driving the support plate to lift the bottom of the casting upward, and at the same time driving the gate column to lift the top of the casting upward. The upper and lower parts of the casting traction wheel are subjected to the upward force at the same time, which is conducive to rapid demoulding, and also reduces the stress concentration of the casting, and ensures the casting quality; before demoulding, pre-treatment and knocking are performed, The vibration waves generated by the knocking propagate between the interface of the casting and the mold, which can effectively break the microscopic bonding force between the casting surface and the mold wall, and at the same time promote the release of residual stress generated during the cooling process of the casting, so that the interface bonding force is evenly weakened, and deformation or cracking of the casting caused by stress concentration in the subsequent demolding process is avoided; during the demolding process, the cylinder drives the lifting plate and the elastic component to reciprocate up and down, and the elastic component cooperates with the positioning rod to form continuous knocking. The vibration generated by the knocking is transmitted to the sand core and the traction wheel. The continuous vibration impact forms tiny gaps between the interfaces. These gaps are conducive to air infiltration, reducing the vacuum adsorption force between the interfaces, providing physical gaps for subsequent sand core crushing, which is beneficial to the sand core crushing and separation, reducing the risk of casting tearing, and further ensuring the quality of casting.

[0044] 2. The present invention performs pre-treatment knocking before demolding to avoid deformation or cracking of the casting caused by stress concentration in the subsequent demolding process; in this process, the telescopic rod of the cylinder is in a separated state from the lifting plate, and the shift rod is installed on the telescopic rod. The telescopic rod drives the shift rod to reciprocate up and down in the area below the lifting plate, and the end of the first semi-arc rod on the shift rod realizes up and down reciprocating movement. The first semi-arc rod triggers the slider of the elastic component and the first wedge block to cooperate to realize compression and release cycle, forming continuous knocking. The vibration wave generated by the knocking breaks the microscopic bonding force between the casting surface and the mold wall between the casting and the mold, and at the same time promotes the release of residual stress generated during the cooling process of the casting, so that the interface bonding force is evenly weakened.

[0045] 3. The device of the present invention is transformed from the demoulding pretreatment to the demoulding state, with smooth transition and stable structure; during this process, when the cylinder drives the telescopic rod to move upward, the telescopic rod and the lifting plate are still in a separated state, and when the telescopic rod continues to move upward, it drives the first half arc rod on the lever to move upward, and then the first half arc rod is free from the constraint of the limit plate and can rotate radially, and when the rising process continues, the first half arc rod contacts the arc guide bar and is driven to rotate, thereby driving the lever and the positioning ring to rotate together, and when the convex block is misaligned with the convex block, the positioning ring and the lever fall freely to the bottom without support; when the telescopic rod continues to move upward, the telescopic rod is connected to the connecting joint at the bottom of the lifting plate, and thereafter, the telescopic rod drives the lifting plate to move up and down reciprocatingly, and further forms a knock with the elastic component; the device ensures the independence of the pretreatment stage through the initial separation state of the telescopic rod and the lifting plate, and the step-by-step conversion process ensures the smooth transition of the device between different working states, and improves the automation level and production efficiency of the entire demoulding process, while ensuring the quality stability of the casting.

[0046] 4. The demoulding device of the present invention reduces the probability of tearing or breakage; the cylinder extends to drive the lifting plate and the elastic component to move upward together, the inclined surface of the first wedge block of the elastic component is located outside the slider, the inclined surface of the first wedge block will abut the protrusion, driving the slider to move away from the lifting plate on the slide rod and compress the second spring at the same time, during this movement, when the inclined surface of the first wedge body contacts the inclined surface of the second wedge body, the second wedge body contacts the first wedge body to move the first wedge body into the slide groove of the slider and compress the first spring at the same time, when the first wedge body moves to disengage from the protrusion, the slider moves upward under the elastic force of the second spring. The plate moves quickly to form knocking, and the vibration generated by the knocking is transmitted to the traction wheel and the sand core, which is conducive to smooth demoulding and reduces tearing or breakage; during the demoulding process, the cylinder drives the lifting plate and the elastic component to reciprocate up and down, and the elastic component cooperates with the positioning rod to form continuous knocking. The vibration generated by the knocking is transmitted to the sand core and the traction wheel. The continuous vibration impact forms tiny gaps between the interfaces. These gaps are conducive to air infiltration, reducing the vacuum adsorption force between the interfaces, providing physical gaps for subsequent sand core crushing, which is conducive to sand core crushing and separation, reducing the risk of casting tearing, and further ensuring the quality of casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the device of the present invention;

[0048] Figure 2 It is a schematic diagram of the three-dimensional structure of the traction wheel and the sand core of the casting product of the present invention;

[0049] Figure 3 It is a three-dimensional schematic diagram of the second mold structure and the internal structure of the U-shaped frame of the device of the present invention;

[0050] Figure 4It is a three-dimensional schematic diagram of the structural relationship between the lifting plate, the vertical pole and the locking rod of the device of the present invention;

[0051] Figure 5 It is a three-dimensional schematic diagram of the elastic component and the lever installation structure of the device of the present invention;

[0052] Figure 6 It is a three-dimensional schematic diagram of the split structure of the elastic component and the lever of the device of the present invention;

[0053] Figure 7 It is a schematic diagram of the three-dimensional structure of the traction sheave of the casting product of the present invention;

[0054] In the figure: support frame-11; first mold-12; second mold-13; third mold-14; fourth mold-15; gate-16; cylinder assembly-17; U-shaped frame-18; lifting plate-19; connecting plate-20; cylinder-21; guide rod-22; traction wheel-23; sand core-24; positioning groove-25; channel-26; vertical rod-27; support plate-28; positioning rod-29; telescopic rod-30; elastic rod-31; elastic rod-32; elastic rod-33; elastic rod-34; elastic rod-35; elastic rod-36; elastic rod-37; elastic rod-38; elastic rod-39; elastic rod-40; elastic rod-41; elastic rod-42; elastic rod-43; elastic rod-44; elastic rod-45; elastic rod-46; elastic rod-47; elastic rod-48; elastic rod-49; elastic rod-50; elastic rod-51; elastic rod-52; elastic rod-53; elastic rod-54; elastic rod-55; elastic rod-56; elastic rod-57; elastic rod-58; elastic rod-59; elastic rod-60; elastic rod-61; elastic rod-62; elastic rod-63; elastic rod-64; elastic rod-65; elastic rod-66; elastic rod-67; elastic rod-68; elastic rod-69; elastic rod-70; elastic rod-71; elastic rod-72; elastic rod-73; elastic rod-74; elastic rod-75; elastic rod-76; elastic rod-77; elastic rod-78; elastic rod-79; elastic rod-80; elastic rod-81; elastic rod-82; elastic rod-83; elastic rod-84; elastic rod-85; elastic rod-86; elastic rod-87; elastic rod-88; elastic rod-89; elastic rod-90; elastic rod-91; elastic rod-92; elastic rod-93; elastic rod-94; elastic rod The component 31; the limit plate 32; the lever 33; the convex stopper 34; the connecting joint 35; the first semi-arc rod 36; the positioning ring 37; the convex block 38; the second semi-arc rod 39; the protrusion 40; the arc guide strip 41; the L-shaped plate 42; the slide bar 43; the slide block 44; the first spring 45; the first wedge block 46; the second spring 47; the second wedge block 48; the gate column 49; the horizontal plate 50; DETAILED DESCRIPTION

[0055] The technical solutions in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0056] Contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0057] like Figure 1-Figure 7As shown, a traction machine component casting processing device includes a support frame 11, and also includes a second mold 13 for fixing a sand core 24 and containing molten metal. The second mold 13 is fixed on the support frame 11, and a third mold 14 and a fourth mold 15 are symmetrically arranged on both sides of the top of the second mold 13. A first mold 12 is arranged on the top of the third mold 14 and the fourth mold 15. A gate 16 is opened on the top of the first mold 12. A cylinder assembly 1 is arranged on the first mold 12, the third mold 14 and the fourth mold 15. 7; A U-shaped frame 18 is fixedly arranged at the bottom end of the second mold 13, a lifting plate 19 is arranged inside the U-shaped frame 18, a cylinder 21 is arranged at the bottom end of the U-shaped frame 18, a telescopic rod 30 of the cylinder 21 penetrates the U-shaped frame 18 and is detachably connected to the lifting plate 19, a plurality of guide rods 22 are slidably arranged on the lifting plate 19, and the guide rods 22 are fixedly installed between the bottom plate of the U-shaped frame 18 and the support frame 11; knocking components are arranged on both sides of the telescopic rod 30; a plurality of positioning grooves 25 are opened on the top of the second mold 13, and the positioning grooves 25 are arranged on the top of the second mold 13. The positioning groove 25 is used to fix the sand core 24, and a channel 26 is opened inside the positioning groove 25; a plurality of vertical rods 27 are fixed on the top of the lifting plate 19, and the vertical rods 27 correspond to the channels 26 above. A support plate 28 is fixed on the top of the vertical rod 27, and the support plate 28 is slidably installed in the channel 26, and the top of the support plate 28 abuts the sand core 24; connecting plates 20 are arranged on both sides of the lifting plate 19, one end of the connecting plate 20 is fixedly connected to the lifting plate 19, and the other end of the connecting plate 20 is close to the first mold 12, and the end of the connecting plate 20 is detachably connected with a cross plate 50; after casting, the molten metal forms a casting in the mold, the molten metal at the gate 16 forms a gate column 49, the casting and the gate column 49 are integrally formed, and the gate column 49 is connected and fixed to the connecting plate 20 by the cross plate 50; when demolding, the cylinder 21 drives the lifting plate 19 and the connecting plate 20 to move upward, so that the support plate 28 lifts the bottom of the casting upward, and at the same time drives the gate column 49 to pull up the top of the casting, thereby reducing the stress concentration of the casting.

[0058] During the casting process, the sand core 24 of the cast traction wheel 23 is placed on the second mold 13. Six positioning grooves 25 are opened on the second mold 13. A protrusion is set at the bottom of the sand core 24. The protrusion is placed in the positioning groove 25. The positioning groove 25 is set to a trapezoidal shape to facilitate positioning and fixing.

[0059] The sand core 24 includes six sector-shaped structures and a cylindrical structure, and the cylindrical structure is placed in the corresponding blind hole on the second mold 13 .

[0060] After placing the sand core 24, sprinkle the release agent on the inner wall of the mold and close the mold. First, merge the two halves of the middle mold (the third mold 14 and the fourth mold 15), and then merge the upper first mold 12. After confirming that the gate 16 and the vent hole of the first mold 12 are unobstructed, inject the molten metal into the two gates 16 at the same time. After casting is completed, wait for cooling and demolding.

[0061] A cylinder assembly 17 is provided on the first mold 12, the third mold 14 and the fourth mold 15. It should be noted that the cylinder assembly 17 includes a fixed plate, a cylinder, a sleeve and a guide pillar (not shown in the figure), etc. The cylinder is connected to an air source and a PLC component, and the telescopic distance of the cylinder is adjusted by the control assembly. The cylinder assembly 17 is commercially available and is a prior art, and is not described in detail here.

[0062] When demoulding, refer to Figure 2 , first separate the first mold 12 from the other molds, and then separate the middle mold (the third mold 14 and the fourth mold 15);

[0063] The connecting plates 20 on both sides are connected and fixed to the adjacent gate columns 49 respectively through the cross plates 50; when fixing, the through hole at one end of the cross plate 50 is sleeved and fixed on the gate column 49, and the other end of the cross plate 50 is fixed to the connecting plate 20 by bolts. At this time, the top of the casting traction wheel is fixedly connected with the lifting plate 19, and a vertical rod 27 is fixed on the top of the lifting plate 19. A support plate 28 is fixed on the top of the vertical rod 27, and the support plate 28 abuts against the sand core 24; when the cylinder 21 drives the lifting plate 19 and the connecting plate 20 to move upward, the support plate 28 pushes up the bottom of the casting, and at the same time drives the gate column 49 to pull up the top of the casting, and simultaneously applies force to the upper and lower parts of the casting traction wheel, reducing the stress concentration of the casting, avoiding damage to the traction wheel of the casting product, and improving the casting quality.

[0064] By setting the upper, middle and lower molds, the middle mold is divided into two, forming four molds for combined casting. The divided middle molds (the third mold 14 and the fourth mold 15) are conducive to the precise molding of the V-shaped or U-shaped groove, and are convenient for rapid and complete demoulding to ensure the casting quality; during the casting process of the traction wheel, a gate column 49 is integrally formed, and a support plate 28 that can move up and down is provided at the bottom of the sand core 24. The lifting plate 19 and the connecting plate 20 are driven upward by the cylinder 21, so that the support plate 28 pushes up the bottom of the casting, and at the same time drives the gate column 49 to pull up the top of the casting, and the casting The upper and lower parts of the traction wheel of the casting are subjected to external force upward at the same time, which is conducive to rapid demoulding, reduces stress concentration of the casting, and ensures the casting quality; during the demoulding process, the elastic component 31 forms continuous knocking on the casting traction wheel 23 driven by the cylinder 21, and the vibration generated by the continuous knocking helps to release the residual stress between the casting traction wheel 23, the sand core 24 and the mold. The vibration can evenly disperse the demoulding stress, prevent stress concentration, reduce the risk of deformation and cracking during the demoulding process, reduce the probability of tearing and damage of the casting during the demoulding process, and further ensure the casting quality.

[0065] Furthermore, the knocking assembly includes a positioning rod 29, which is fixedly connected to the second mold 13 and the bottom plate of the U-shaped frame 18; the positioning rod 29 is passed through the through-hole of the lifting plate 19, and the two maintain a distance from each other without interfering with each other; the positioning rod 29 is provided with a plurality of protrusions 40 at intervals on the upper and lower sides, and an elastic assembly 31 is provided on one side close to the protrusion, and the top of the elastic assembly 31 is fixedly connected to the bottom end of the lifting plate 19. When the cylinder 21 drives the lifting plate 19 and the elastic assembly 31 to move upward, the elastic assembly 31 abuts against the protrusion 40 and is released to knock the lifting plate 19, thereby accelerating the separation of the casting from the mold.

[0066] See also Figure 4 , Figure 5 and Figure 6 When the cylinder 21 drives the lifting plate 19 to move, the elastic component 31 connected thereto also moves upward. In this process, the slider 46 of the elastic component 31 will contact with the protrusion 40 on the locking rod 29 in turn and generate displacement. Then, after the compression deformation of the elastic component 31 accumulates to a certain extent, the elastic potential energy stored in it will be quickly released. This release will generate an upward impact force acting on the lifting plate 19. Through this periodic compression and release process, continuous vibration impact is generated in the demoulding stage, thereby accelerating the separation process between the casting and the sand core;

[0067] The main function of this design is to generate regular vibration impact force through the successive interaction between the elastic component 31 and the multiple protrusions 40, thereby converting the continuous movement of the cylinder 21 into intermittent knocking force; its beneficial effects are reflected in: the adhesion between the casting and the sand core is effectively broken by the vibration impact, which significantly improves the demolding efficiency; the multi-point dispersed impact force avoids stress concentration and reduces the risk of damage to the casting.

[0068] Furthermore, the elastic component 31 includes an L-shaped plate 42, a sliding rod 43, a slider 44, a first spring 45, a first wedge 46, a second spring 47 and a second wedge 48. The bottom plate of the L-shaped plate 42 is arranged parallel to the lifting plate 19, and the top ends of the adjacent side plates of the L-shaped plate 42 are fixedly connected to the bottom end of the lifting plate 19. Two sliding rods 43 are fixedly arranged on the bottom plate of the L-shaped plate 42, one end of the sliding rod 43 is fixedly connected to the lifting plate 19, and the other end is fixedly connected to the bottom plate of the L-shaped plate 42; a slider 44 and a second spring 47 are sleeved on the sliding rod 43, and the second spring 47 is located at the bottom of the slider 44; a sliding groove is provided on the slider 44, and a first spring 45 and a first wedge 46 are installed inside the sliding groove, and the inclined surface of the first wedge is close to the protrusion 40; a second wedge 48 is fixedly arranged on the bottom plate of the L-shaped plate 42, and the second wedge 48 is arranged perpendicular to the first wedge 46, and the inclined surfaces of the two wedges are parallel.

[0069] See also Figure 5 and Figure 6 During the extension of the cylinder 21, the lifting plate 19 and the elastic component 31 are driven to move upward together. The inclined surface of the first wedge block 46 of the elastic component 31 is located outside the slider 44. The inclined surface of the first wedge block 46 abuts against the protrusion 40, driving the slider 44 to move away from the lifting plate 19 on the slide rod 43 and compressing the second spring 47 at the same time. During this movement, when the inclined surface of the first wedge 46 contacts the inclined surface of the second wedge 48, the second wedge 48 contacts the first wedge 46 to move the first wedge 46 into the slide groove of the slider 44 and compress the first spring 45 at the same time. When the first wedge 46 moves to disengage from the protrusion 40, the slider 44 moves quickly toward the lifting plate 19 under the elastic force of the second spring 47 to knock. The vibration generated by the knocking is transmitted to the mold, the traction wheel 23 and the sand core 24, which is conducive to smooth demoulding and reduces tearing or breakage.

[0070] In the above process, when the first wedge 46 moves to be separated from the protrusion 40, the first wedge 46 is reset under the action of the first spring 45, and the inclined surface of the first wedge 46 is outside the slide groove 44, which is conducive to the next knocking;

[0071] When the knocking is completed, the cylinder 21 contracts, driving the lifting plate 19 and the elastic component 31 to move downward together, and the first wedge 46 of the elastic component 31 also moves downward, and the inclined surface of the first wedge 46 abuts against the protrusion 40, and the first wedge 46 slides into the slide groove of the slider 44 and compresses the first spring 45 at the same time; when the first wedge 46 is separated from the protrusion 40, the first wedge 46 is reset and extends out of the slider 44 under the reaction force of the first spring 45, and enters the next step;

[0072] In the process that the cylinder 21 pushes the lifting plate 19 and the elastic component 31 to do up and down reciprocating motion together, the above steps are repeated continuously to complete continuous knocking and generate continuous vibration impact, thereby accelerating the separation between the casting and the sand core.

[0073] Furthermore, the width of the inclined surface of the second wedge block 48 is smaller than the width of the first wedge block 46 ; the projection surfaces of the protrusion 40 and the second wedge block 48 do not intersect, and the projection surfaces of the protrusion 40 and the second wedge block 48 both intersect with the projection surface of the first wedge block 46 .

[0074] See also Figure 6 The inclined width of the second wedge block 48 is designed to be smaller than the width of the first wedge block 46. This differentiated width design realizes reasonable force transmission. At the same time, in terms of spatial layout, the projection surfaces of the protrusion 40 and the second wedge block 48 do not intersect, while the projection surfaces of the protrusion 40 and the second wedge block 48 intersect with the projection surface of the first wedge block 46. The working principle of this special spatial layout design is to avoid mutual interference between the two during movement by staggering the projection positions of the protrusion 40 and the second wedge block 48, and at the same time ensure effective force transmission by making them intersect with the projection surfaces of the first wedge block 46 respectively.

[0075] Furthermore, a detachable connecting joint 35 is provided at the end of the telescopic rod 30 and the bottom of the lifting plate 19, and a plurality of cams 34 are provided at the end of the telescopic rod 30 away from the cylinder 21. The cams 34 are distributed on the upper and lower radial planes, and the cams 34 are evenly spaced on the radial planes. The upper and lower cams 34 are positioned correspondingly, and there is a spacing between the upper and lower cams 34 to form a channel; a lever 33 is provided at the end of the telescopic rod 30, and the lever 33 is rotatably provided in the channel of the upper and lower cams 34. Further, the lever 33 comprises a positioning ring 37, a first semi-arc rod 36 and a clamping protrusion 38. The outer periphery of the positioning ring 37 is fixedly connected to the first semi-arc rod 36. The first semi-arc rod 36 is arranged close to the clamping rod 29. A limit plate 32 is arranged on the outer side of the first semi-arc rod 36. The limit plate 32 is fixedly connected to the clamping rod 29. The clamping rod 29 is provided with an arc-shaped guide strip 41. The end of the first semi-arc rod 36 can abut against the first wedge 46. A plurality of clamping protrusions 38 are arranged inside the positioning ring 37. The positioning ring 37 is installed in the channel of the upper and lower convex stops 34. When the clamping protrusion 38 corresponds to the position of the convex stop 34, the convex stop 34 supports the positioning ring 37. When the clamping protrusion 38 is misaligned with the convex stop 34, the positioning ring 37 falls freely without support. The openings of the first semi-arc rod 36 and the second semi-arc rod 39 are opposite in direction.

[0076] The connection joint 35 belongs to the prior art; a James-type connection structure similar to that used in train connection can be selected, or a Chinese high-speed rail carriage connection structure can be selected.

[0077] The connection joint 35 can also be composed of the following components and their connection relationship: the end of the first half arc rod is provided with a convex clamping joint, including a cylindrical clamping part and a conical guide head, and the outer circumference of the clamping part is provided with an annular clamping groove; the end of the second half arc rod is provided with a concave sleeve matching the convex clamping joint, the inner wall of the sleeve is provided with an elastic clamping ring matching the annular clamping groove, and the end of the sleeve is provided with a conical guide surface. The elastic clamping ring is made of an elastic steel ring, and its inner diameter is slightly smaller than the outer diameter of the clamping part. When the two half arc rods move and collide relative to each other, the conical guide head of the convex clamping joint first contacts with the concave guide surface of the concave sleeve, and the centering is achieved under the guidance of the guide surface, and then the clamping part slides in along the inner wall of the sleeve to compress the elastic clamping ring. When the annular clamping groove is aligned with the elastic clamping ring, the elastic clamping ring is clamped into the annular clamping groove under the action of its own elastic force, thereby realizing a quick and stable connection of the two rods. A limiting boss is also provided at the end of the sleeve, which abuts against the end face of the clamping joint to prevent excessive insertion. This design not only ensures the reliability of the connection, but also realizes fast and automatic docking, improving assembly efficiency.

[0078] It should be noted that before applying an upward force to the casting, the telescopic rod 30 of the cylinder 21 is in a separated state from the lifting plate 19. At this time, the lever 33 is installed on the telescopic rod 30. When the telescopic rod 30 drives the lever 33 to reciprocate up and down in the area below the lifting plate 19, the end of the first semi-arc rod 36 on the lever 33 realizes up and down reciprocating movement; the end of the first semi-arc rod 36 pushes the inclined body of the first wedge block 46 to move downward, so that the inclined surface of the first wedge block 46 and the inclined surface of the second wedge block 48 are squeezed, and finally the elastic component knocks on the lifting plate 19. The principle of this knocking process is similar to the principle of the above-mentioned elastic component 31 and the protrusion 40 cooperating to knock, and will not be described in detail here.

[0079] This process is a pre-treatment knocking, which is a continuous knocking performed before applying an upward force to the casting; the vibration wave generated by the continuous knocking propagates at the interface between the casting and the mold. This vibration energy can effectively break the microscopic bonding force between the casting surface and the mold wall, and can also promote the release of residual stress generated during the cooling process of the casting; secondly, from the principle of metal solidification, the casting will shrink during the cooling process. This shrinkage will cause strong friction and local bonding between the casting surface and the mold cavity, and the pre-continuous knocking can gradually loosen this bonding state at the micro level, so that the interface bonding force is evenly weakened; thirdly, from a mechanical point of view, the vibration generated by this pre-tap can make the contact stress between the casting and the mold tend to be uniform, avoiding deformation or cracking of the casting caused by stress concentration in the subsequent demolding process; finally, from a process point of view, this pre-treatment process can significantly reduce the force required for formal demolding, which not only protects the quality of the casting, but also extends the life of the mold.

[0080] See also Figure 5 and Figure 6 When the lever 33 is installed on the telescopic rod 30, the upper and lower rows of convex stops 34 and the locking protrusions 38 on the telescopic rod 30 are located in the same vertical plane, and the upper and lower groups of convex stops 34 limit the locking protrusions 38 up and down. At this time, the inner side of the first semi-arc rod 36 of the lever 33 is fitted with the locking rod 29, and the limiting plate 32 located on the outer side of the first semi-arc rod 36 limits the radial movement of the first semi-arc rod 36, ensuring that the lever 33 can stably reciprocate up and down during this process; further ensuring that the spring assembly 31 continuously knocks on the lifting plate 19.

[0081] When the above-mentioned pre-treatment knocking is completed, the cylinder 21 will drive the telescopic rod 30 to move upward. At this time, the telescopic rod 30 and the lifting plate 19 are still in a separated state. When the telescopic rod 30 continues to move upward, it drives the first semi-arc rod 36 on the lever 33 to move upward. Then, the first semi-arc rod 36 is freed from the constraint of the limit plate 32 and can rotate radially. When the rising process continues, the first semi-arc rod 36 contacts the arc guide bar 41 and is driven to rotate, thereby driving the lever 33 and the positioning ring 37 to rotate together. When the locking protrusion 38 is misaligned with the convex stop 34, the positioning ring 37 and the lever 33 fall freely to the bottom without support; when the telescopic rod 30 continues to move upward, the telescopic rod 30 is connected to the lifting plate 19 through the connecting joint 35 at the bottom. Thereafter, the telescopic rod 30 will drive the lifting plate 19 to move up and down, and further knock with the elastic component.

[0082] Furthermore, the striking component array is arranged into 2 groups, a second semi-arc rod 39 is arranged on the positioning ring 37, and the first semi-arc rod 36 and the second semi-arc rod 39 are arranged in an array.

[0083] See also Figure 6 By setting two groups of knocking component arrays and configuring the second half arc rod 39 on the positioning ring 37, the first half arc rod 36 and the second half arc rod 39 are arranged in an array distribution mode, thereby achieving a more uniform distribution of vibration impact force. The knocking component provides multi-point synchronous vibration through the arrangement of two groups of arrays, avoiding the uneven force that may be caused by single-point vibration. At the same time, the array of the first half arc rod 36 and the second half arc rod 39 cooperates to form a complete annular support structure, which not only enhances the stability of the overall structure, but also provides a more reliable positioning reference. This design significantly improves the uniformity and efficiency of the demoulding process, reduces the risk of part deformation, and at the same time, due to the more balanced force, it also extends the service life of the mold and improves the quality stability of the casting.

[0084] Furthermore, the support plate 28 is made of alumina.

[0085] Alumina has an ultra-high hardness of 9 on the Mohs scale and excellent wear resistance. It can withstand frequent mold installation and disassembly operations without causing significant wear. At the same time, its excellent high temperature resistance enables it to maintain dimensional stability in high-temperature casting environments, and will not affect the precise positioning of the mold due to thermal expansion and contraction. The good chemical stability of alumina ensures that the support plate 28 will not react chemically with the casting, avoiding contamination and adhesion problems, and its excellent thermal conductivity helps to evenly distribute the mold temperature.

[0086] The method for processing using the device comprises the following steps:

[0087] S1. Mould assembly:

[0088] S11, placing the sand core 24 on the second mold 13, so that the six sector-shaped protrusions at the bottom of the sand core 24 are respectively embedded in the six positioning grooves 25 on the second mold 13, and the cylindrical structure of the sand core 24 is placed in the corresponding blind holes of the second mold 13;

[0089] S12, spray the release agent evenly on the inner wall of all molds;

[0090] S13, merging the split middle mold third mold 14 and fourth mold 15 to ensure accurate forming of the V-shaped or U-shaped groove;

[0091] S14, merging the first mold 12 onto the middle mold to complete the mold assembly;

[0092] S2. Pouring:

[0093] S21, check the patency of the two gates 16 and the vent holes at the top of the first mold 12;

[0094] S22, injecting the smelted molten metal into the two pouring gates 16 at the same time to ensure a uniform pouring speed;

[0095] S23, the molten metal solidifies and forms in the mold to form a casting and a gate column 49 integrally formed therewith;

[0096] S3, pretreatment demoulding:

[0097] S31, after the casting is sufficiently cooled, the first mold 12 is separated from the other molds;

[0098] S32, separating the middle mold, the third mold 14 and the fourth mold 15;

[0099] S33, the through hole at one end of the horizontal plate 50 is sleeved and fixed on the gate column 49, and the other end is fixedly connected to the connecting plate 20 with bolts;

[0100] S34, start the cylinder 21, while the telescopic rod 30 and the lifting plate 19 remain separated:

[0101] S341, the telescopic rod 30 drives the lever 33 to reciprocate up and down under the constraint of the limit plate 32;

[0102] S342, the first wedge block 46 is pushed by the array of the first half arc rod 36 and the second half arc rod 39, so that the first wedge block 46 and the inclined surface of the second wedge block 48 are squeezed to generate pre-treatment vibration, and the vibration wave propagates between the casting and the mold interface to break the microscopic bonding force;

[0103] S4, formal demoulding:

[0104] S41, the cylinder 21 drives the telescopic rod 30 to move upward;

[0105] S42, making the first half arc rod 36 of the lever 33 free from the constraint of the limiting plate 32;

[0106] S43, the first half arc rod 36 contacts the upper arc guide strip 41 and rotates, driving the positioning ring 37 to rotate so that the locking protrusion 38 is misaligned with the protruding stopper 34, and the positioning ring 37 and the lever 33 lose support and fall freely;

[0107] S44, the telescopic rod 30 continues to rise, and the telescopic rod 30 forms a fixed connection with the lifting plate 19 through the connecting joint 35, and the cylinder 21 drives the lifting plate 19 and the connecting plate 20 to move upward, and at the same time: the support plate 28 pushes up the bottom of the casting through the vertical rod 27, and pulls up the top of the casting through the horizontal plate 50 and the gate column 49, so as to separate the casting from the mold;

[0108] S45, the elastic component 31 and the protrusion 40 cooperate cyclically:

[0109] S451, the first wedge 46 abuts against the protrusion 40, and the slider 44 compresses the second spring 47 and then moves away from the lifting plate 19;

[0110] S452, the first wedge block 46 contacts the second wedge block 48 at an inclined surface, so that the first wedge block 46 enters the slide groove of the slider 44 and compresses the first spring 45 at the same time. The slider 44 impacts the lifting plate 19 under the restoring force of the second spring 47 to form a knocking vibration. Under the action of multiple continuous knocking, the interface bonding force between the casting and the sand core 24 is uniformly weakened, and the formation of microscopic gaps helps air infiltration, reduces the vacuum adsorption force, and promotes the separation of the casting and the sand core 24.

[0111] The present invention illustrates the technical concept of the present invention through the above embodiments, but the present invention is not limited to the above embodiments, that is, it does not mean that the present invention must rely on the above embodiments to be implemented. Those skilled in the art should understand that the relevant improvements to the present invention fall within the protection scope and disclosure scope of the present invention.

Claims

1. A traction machine component casting processing device, comprising a support frame (11), and also comprising a second mold (13) for fixing a sand core (24) and containing molten metal, characterized in that: A second mold (13) is fixedly arranged on the support frame (11); a third mold (14) and a fourth mold (15) are symmetrically arranged on both sides of the top of the second mold (13); a first mold (12) is arranged on the top of the third mold (14) and the fourth mold (15); a gate (16) is provided on the top of the first mold (12); and a cylinder assembly (17) is arranged on the first mold (12), the third mold (14) and the fourth mold (15); A U-shaped frame (18) is fixedly arranged at the bottom end of the second mold (13), a lifting plate (19) is arranged inside the U-shaped frame (18), a cylinder (21) is arranged at the bottom end of the U-shaped frame (18), a telescopic rod (30) of the cylinder (21) passes through the U-shaped frame (18) and approaches the lifting plate (19), a plurality of guide rods (22) are slidably arranged on the lifting plate (19), and the guide rods (22) are fixedly installed between the bottom plate of the U-shaped frame (18) and the support frame (11); knocking components are arranged on both sides of the telescopic rod (30); The top of the second mold (13) is provided with a plurality of positioning grooves (25), the positioning grooves (25) are used to fix the sand core (24), and the inside of the positioning grooves (25) is provided with a channel (26); the top of the lifting plate (19) is fixed with a plurality of vertical rods (27), the vertical rods (27) are corresponding to the channels (26) above, the top of the vertical rods (27) is fixed with a support plate (28), the support plate (28) is slidably installed in the channel (26), and the top of the support plate (28) abuts against the sand core (24); Connecting plates (20) are arranged on both sides of the lifting plate (19), one end of the connecting plate (20) is fixedly connected to the lifting plate (19), the other end of the connecting plate (20) is close to the first mold (12), and the end of the connecting plate (20) is detachably connected to a transverse plate (50); After casting, the molten metal forms a casting in the mold, and the molten metal at the gate (16) forms a gate column (49). The casting and the gate column (49) are integrally formed, and the gate column (49) and the connecting plate (20) are connected and fixed by a cross plate (50); when demolding, the cylinder (21) drives the lifting plate (19) and the connecting plate (20) to move upward, so that the support plate (28) lifts the bottom of the casting upward, and at the same time drives the gate column (49) to pull up the top of the casting, thereby reducing stress concentration of the casting.

2. The traction machine component casting processing device according to claim 1, characterized in that: The knocking assembly comprises a positioning rod (29), a plurality of protrusions (40) are arranged at intervals on the upper and lower parts of the positioning rod (29), an elastic assembly (31) is arranged on one side close to the protrusions, the top of the elastic assembly (31) is fixedly connected to the bottom end of the lifting plate (19), and when the cylinder (21) drives the lifting plate (19) and the elastic assembly (31) to move upward, the elastic assembly (31) abuts against the protrusions (40) and is compressed and then released to knock the lifting plate (19), thereby accelerating the separation of the casting from the mold.

3. The traction machine component casting processing device according to claim 2, characterized in that: The elastic component (31) comprises an L-shaped plate (42), a sliding rod (43), a sliding block (44), a first spring (45), a first wedge block (46), a second spring (47) and a second wedge block (48); the bottom plate of the L-shaped plate (42) is arranged parallel to the lifting plate (19); the top ends of the adjacent side plates of the L-shaped plate (42) are fixedly connected to the bottom end of the lifting plate (19); two sliding rods (43) are fixedly arranged on the bottom plate of the L-shaped plate (42); one end of the sliding rod (43) is fixedly connected to the lifting plate (19); and the other end is fixedly connected to the lifting plate (19). The bottom plate of the L-shaped plate (42); a slider (44) and a second spring (47) are sleeved on the sliding rod (43), and the second spring (47) is located at the bottom of the slider (44); a sliding groove is provided on the slider (44), and a first spring (45) and a first wedge block (46) are installed inside the sliding groove, and the inclined surface of the first wedge block is close to the protrusion (40); a second wedge block (48) is fixed on the bottom plate of the L-shaped plate (42), and the second wedge block (48) is vertically arranged with the first wedge block (46), and the inclined surfaces of the two wedge blocks are opposite and parallel.

4. The traction machine component casting processing device according to claim 3, characterized in that: The width of the inclined surface of the second wedge block (48) is smaller than the width of the first wedge block (46); the projection surfaces of the protrusion (40) and the second wedge block (48) do not intersect, and the projection surfaces of the protrusion (40) and the second wedge block (48) both intersect with the projection surface of the first wedge block (46).

5. The traction machine component casting processing device according to claim 4, characterized in that: The end of the telescopic rod (30) and the bottom of the lifting plate (19) are provided with a detachable connecting joint (35); the end of the telescopic rod (30) away from the cylinder (21) is provided with a plurality of convex blocks (34); the convex blocks (34) are distributed on two upper and lower radial planes; the convex blocks (34) are evenly distributed on the radial plane at intervals; the upper and lower convex blocks (34) are located in corresponding positions; and there is a spacing between the upper and lower convex blocks (34) to form a channel; a shifting rod (33) is provided at the end of the telescopic rod (30); the shifting rod (33) is rotatably arranged in the channel of the upper and lower convex blocks (34).

6. The traction machine component casting processing device according to claim 5, characterized in that: The shifting rod (33) comprises a positioning ring (37), a first semi-arc rod (36) and a locking protrusion (38); the outer periphery of the positioning ring (37) is fixedly connected to the first semi-arc rod (36); the first semi-arc rod (36) is arranged adjacent to the locking rod (29); a limiting plate (32) is arranged on the outer side of the first semi-arc rod (36); the limiting plate (32) is fixedly connected to the locking rod (29); an arc-shaped guide strip (41) is arranged on the locking rod (29) The end of the first semi-arc rod (36) can abut against the first wedge block (46), and a plurality of locking protrusions (38) are arranged inside the positioning ring (37); the positioning ring (37) is installed in the channel of the upper and lower convex blocks (34); when the locking protrusions (38) correspond to the convex blocks (34), the convex blocks (34) support the positioning ring (37); when the locking protrusions (38) and the convex blocks (34) are misaligned, the positioning ring (37) falls freely without support.

7. The traction machine component casting processing device according to claim 6, characterized in that: The striking component array is arranged in two groups, a second semi-arc rod (39) is added to the positioning ring (37), and the first semi-arc rod (36) and the second semi-arc rod (39) are arranged in an array.

8. The traction machine component casting processing device according to claim 1, characterized in that: The openings of the first semi-arc rod (36) and the second semi-arc rod (39) are oriented in opposite directions.

9. The traction machine component casting processing device according to claim 2, characterized in that: The lifting plate 19 is provided with a through hole, and the positioning rod 29 is passed through the through hole of the lifting plate 19, and the two are kept at a distance and do not interfere with each other.

10. A method for processing using the device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Mould assembly: S11, placing the sand core (24) on the second mold (13), so that the six sector-shaped protrusions at the bottom of the sand core (24) are respectively embedded in the six positioning grooves (25) on the second mold (13), and the cylindrical structure of the sand core (24) is placed in the corresponding blind hole of the second mold (13); S12, spray the release agent evenly on the inner wall of all molds; S13, merging the split middle mold third mold (14) and the fourth mold (15) to ensure accurate forming of the V-shaped or U-shaped groove; S14, merging the first mold (12) onto the middle mold to complete the mold assembly; S2. Pouring: S21, checking the patency of the two gates (16) and the vent holes at the top of the first mold (12); S22, injecting the smelted molten metal into two pouring gates (16) at the same time to ensure a uniform pouring speed; S23, the molten metal solidifies and forms in the mold to form a casting and a gate column (49) integrally formed therewith; S3, pretreatment demoulding: S31, after the casting is sufficiently cooled, the first mold (12) is separated from the other molds; S32, separating the middle mold, the third mold (14) and the fourth mold (15); S33, the through hole at one end of the horizontal plate (50) is sleeved and fixed on the gate column (49), and the other end is fixedly connected to the connecting plate (20) with bolts; S34, start the cylinder (21), while the telescopic rod (30) and the lifting plate (19) remain separated: S341, causing the telescopic rod (30) to drive the lever (33) to perform up and down reciprocating motion under the constraint of the limit plate (32); S342, pushing the first wedge block (46) through the array of the first half arc rod (36) and the second half arc rod (39), so that the inclined surfaces of the first wedge block (46) and the second wedge block (48) are squeezed to generate pre-treatment vibration, and the vibration wave propagates between the interface of the casting and the mold to break the microscopic bonding force; S4, formal demoulding: S41, the cylinder (21) drives the telescopic rod (30) to move upward; S42, making the first half arc rod (36) of the lever (33) break away from the constraint of the limiting plate (32); S43, the first half arc rod (36) contacts the arc-shaped guide strip (41) above and then rotates, driving the positioning ring (37) to rotate so that the locking protrusion (38) and the protruding stopper (34) are misaligned, and the positioning ring (37) and the shifting rod (33) lose support and fall freely; S44, the telescopic rod (30) continues to rise, and the telescopic rod (30) forms a fixed connection with the lifting plate (19) through the connecting joint (35), and the cylinder (21) drives the lifting plate (19) and the connecting plate (20) to move upward, and at the same time: the support plate (28) lifts the bottom of the casting upward through the vertical rod (27), and pulls the top of the casting upward through the horizontal plate (50) and the gate column (49), so as to separate the casting from the mold; S45, the elastic component (31) and the protrusion (40) are cyclically matched: S451, the first wedge block (46) abuts against the protrusion (40), and the slider (44) compresses the second spring (47) and then moves in a direction away from the lifting plate (19); S452, the first wedge block (46) contacts the inclined surface of the second wedge block (48), so that the first wedge block (46) enters the slide groove of the slider (44) and compresses the first spring (45) at the same time. The slider (44) impacts the lifting plate (19) under the restoring force of the second spring (47) to form a knocking vibration. Under the action of multiple continuous knocking, the interface bonding force between the casting and the sand core (24) is uniformly weakened, forming microscopic gaps to help air infiltration, reducing the vacuum adsorption force, and promoting the separation of the casting and the sand core (24).

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