Hydraulic motor shell casting tool

Abstract

The invention relates to the field of hydraulic motor shell casting, in particular to a hydraulic motor shell casting tool which comprises a tool support, a supporting plate is movably mounted at the top of the tool support, a casting female die base is fixedly mounted at the top of the supporting plate, a casting male die is movably mounted at the top of the casting female die base, and the hydraulic motor shell casting tool further comprises a bubble eliminating mechanism. According to the hydraulic motor shell casting tool, through cooperative use of the tool support, the bubble eliminating mechanism, the mode switching mechanism and other components, after a casting female die base and a casting male die on the top of the supporting plate are assembled, in the rotating process of a supporting cylinder, the bubble eliminating mechanism and the mode switching mechanism are matched, and the casting female die base and the casting male die are matched; according to the device, the supporting plate in the horizontal rotating state can be switched to be in the shaking rotating state, bubbles at the dead angle position in a casting mold cavity can be discharged through a two-dimensional rotating shaking mode, and therefore the bubble eliminating effect is effectively improved, and the machining quality of a hydraulic motor shell casting is improved.

Description

Technical Field

[0001] The present invention relates to the field of hydraulic motor housing casting, and specifically to a casting tooling for a hydraulic motor housing. Background Art

[0002] A hydraulic motor is a device that transmits power through liquid. It is commonly used in engineering and mechanical systems. The casting of a hydraulic motor housing is a process for manufacturing a key component of a hydraulic motor. During the process of pouring molten metal into a casting mold, bubbles are generated, and eliminating bubbles is one of the important processes to improve the quality of the hydraulic motor housing casting.

[0003] The following problems in the prior art have not been well solved: 1. In the existing production process of some hydraulic motor housing casting devices, the bubbles inside the hydraulic motor housing casting are discharged by centrifugal force. When producing a hydraulic motor housing with a complex structure, there will be blind areas and dead corners inside the casting mold cavity. At this time, the bubbles will stay in the dead corner positions and are difficult to be quickly and effectively discharged under the action of centrifugal force. The bubbles that are not effectively discharged will affect the machining quality of the casting. Summary of the Invention

[0004] The purpose of the present invention is to provide a casting tooling for a hydraulic motor housing to solve the problems raised in the above background art: 1. During the use of some existing hydraulic motor housing casting devices, only the bubbles inside the molten metal in the casting mold cavity are discharged by centrifugal force, and this method is difficult to quickly discharge the bubbles in the dead corner positions inside the casting mold cavity. To achieve the above purpose, the present invention provides the following technical solution: A casting tooling for a hydraulic motor housing, including a tooling support seat, on the top of which a support plate is movably installed. On the top of the support plate, a casting female mold seat is fixedly installed, and on the top of the casting female mold seat, a casting male mold is movably installed; It further includes: a bubble elimination mechanism, which is movably installed between the bottom of the support plate and the inner bottom surface of the tooling support seat, and the bubble elimination mechanism is used to eliminate the bubbles generated after the molten metal is poured into the mold cavity; On the inner bottom surface of the tooling support seat, a mode conversion mechanism that cooperates with the bubble elimination mechanism is movably installed, and the mode conversion mechanism is used to switch the operation mode of the bubble elimination mechanism.

[0005] Preferably, the bubble elimination mechanism includes: a support cylinder rotatably connected to the inner bottom surface of the tooling support seat, and a driving gear ring fixedly sleeved on the outer wall of the support cylinder; A driving motor fixed to the inner bottom surface of the tooling support seat, and a driving tooth bar fixedly connected to the rotating end of the driving motor and meshing with the driving gear ring; A shaft rod rotatably connected to the top of the support cylinder, and a lever rotatably connected to the middle of the shaft rod, with a wedge-shaped hinge block hinged to the bottom of the lever; The connecting block is articulated to the top of the lever, the top of the connecting block is fixedly connected to the bottom of the support plate, and a universal ring is rotatably connected to the upper part of the connecting block. L-shaped support blocks are rotatably connected to both the left and right sides of the universal ring. A support bearing is fixedly connected between the two L-shaped support blocks, the outer ring of the support bearing is fixedly connected to the inner wall of the tooling support, and a limiting component cooperating with the mode conversion mechanism is movably connected between the bottom of the support bearing and the inner bottom surface of the tooling support; The bottom of the wedge-shaped hinge block is rotatably connected to an adjusting rod, and the adjusting rod extends into the adjusting groove on the inner wall of the tooling support and is movably connected to the mode conversion mechanism; A semi-tooth ring is fixedly sleeved in the middle of the outer wall of the support cylinder.

[0006] Preferably, the limiting component includes a limiting tooth ring, and the limiting tooth ring is fixedly connected to the bottom position of the inner ring of the support bearing; Spring telescopic rods are fixedly connected to both sides of the inner bottom surface of the tooling support. The top of the spring telescopic rod is fixedly connected to a cushion block cooperating with the mode conversion mechanism. The top of the cushion block is fixedly connected to a limiting rod. The middle of the limiting rod is vertically slidably arranged at the inner wall position of the tooling support. The top of the limiting rod is fixedly connected to an arc-shaped limiting tooth plate cooperating with the limiting tooth ring.

[0007] Preferably, a main waist-shaped groove is formed in the lower part of the connecting block, a main hinge pin is fixedly connected to the upper part of the lever, and the upper part of the lever is slidably arranged inside the main waist-shaped groove through the main hinge pin; A secondary waist-shaped groove is formed in the lower part of the lever, an inclined groove is formed in the upper part of the wedge-shaped hinge block, a secondary hinge pin is movably connected between the inclined groove and the inner wall of the secondary waist-shaped groove, and a connecting bearing is fixedly connected between the bottom of the wedge-shaped hinge block and the top of the adjusting rod.

[0008] Preferably, hinge rings are fixedly connected to all four sides of the universal ring. A connecting pin is rotatably connected inside the hinge ring. The front and rear connecting pins are fixedly connected to the side wall of the connecting block, and the left and right connecting pins are respectively fixedly connected to the side walls of the two L-shaped support blocks.

[0009] Preferably, the mode conversion mechanism includes: a reciprocating lead screw symmetrically rotating on the inner bottom surface of the tooling support, and a circular gear fixedly connected to the top thereof and meshing with the semi-tooth ring; A nut sleeve threadedly connected to the reciprocating lead screw, and a T-shaped pressing rod is fixedly connected to the top of the nut sleeve; An activity groove communicating with the adjusting groove is formed inside the tooling support, and a Z-shaped guide plate is slidably arranged in the activity groove; The lower end of the T-shaped pressing rod is slidably connected to the middle of the Z-shaped guide plate; A guide rod is fixedly connected to the side wall of the Z-shaped guide plate, and the guide rod extends into the adjusting groove and is fixedly connected to an L-shaped inclined plate; Adjusting pins are fixedly connected to both sides of the adjusting rod, and the adjusting pins are slidably arranged in the middle of the L-shaped inclined plate.

[0010] Preferably, a guiding pin is fixedly connected to the lower end of the T-shaped pressing rod, a Z-shaped guiding groove is formed in the middle of the Z-shaped guiding plate, the guiding pin is slidably arranged inside the Z-shaped guiding groove, and the two Z-shaped guiding plates are symmetrically arranged.

[0011] Preferably, an adjusting bearing is fixedly connected to the bottom of the supporting plate, four positioning rods are ball-jointed equidistantly along the circumference at the bottom of the adjusting bearing, and the lower parts of the positioning rods are movably inserted through the top of the tooling support.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: In the present invention, through the cooperation of components such as the tooling support, the bubble elimination mechanism, and the mode conversion mechanism, after the casting female die seat and the casting male die on the top of the supporting plate are closed, during the rotation of the supporting cylinder, through the cooperation of the bubble elimination mechanism and the mode conversion mechanism, the supporting plate in the horizontal rotation state can be switched to the shaking and rotating state. Through the two-dimensional rotation and shaking mode, the bubbles at the dead corners in the casting mold cavity can be discharged, thereby effectively improving the bubble elimination effect and the processing quality of the hydraulic motor housing casting.

[0013] In the present invention, through the cooperation of components such as the supporting cylinder, the supporting plate, and the mode switching mechanism, since the screw sleeve drives the T-shaped pressing rod to reciprocate up and down on the surface of the reciprocating screw rod, the supporting cylinder first drives the supporting plate to rotate horizontally, then makes the supporting plate shake and rotate, and then makes the supporting plate rotate horizontally again. In this way, through multiple switching methods, the bubbles shaken out inside the dead corners of the casting mold can be switched to the centrifugal exhaust state during the floating process, which can further improve the floating and discharging speed of the bubbles, thereby improving the processing efficiency. Description of the Drawings

[0014] Figure 1 It is a three-dimensional view of the position of the tooling support and the supporting plate of the present invention; Figure 2 It is a cross-sectional view of the position of the tooling support and the supporting cylinder of the present invention; Figure 3 For the present invention Figure 2 The enlarged view of the structure at A in Figure 4 It is a three-dimensional view of the position of the universal ring and the connecting block of the present invention; Figure 5 It is a cross-sectional view of the position of the supporting cylinder and the lever of the present invention; Figure 6 It is a cross-sectional view of the partial position of the tooling support and the adjusting groove of the present invention; Figure 7 It is a three-dimensional view of the position of the cushion block and the limiting rod of the present invention; Figure 8 This is a three-dimensional view of the local position of the lever and the wedge-shaped hinge block of the present invention; Figure 9 This is a cross-sectional view of the local position of the T-shaped pressure rod and the reciprocating lead screw of the present invention.

[0015] In the figure: 1, tooling support; 2, support plate; 3, casting die holder; 4, casting punch; 5, bubble elimination mechanism; 501, support cylinder; 502, driving gear ring; 503, driving rack; 504, shaft rod; 505, lever; 506, connecting block; 507, universal ring; 508, L-shaped support block; 509, support bearing; 510, limit assembly; 5101, limit gear ring; 5102, spring telescopic rod; 5103, cushion block; 5104, limit rod; 5105, arc-shaped limit tooth plate; 511, wedge-shaped hinge block; 512, adjusting rod; 513, adjusting groove; 514, semi-tooth gear ring; 6, mode conversion mechanism; 601, reciprocating lead screw; 602, spur gear; 603, screw sleeve; 604, T-shaped pressure rod; 605, movable groove; 606, Z-shaped guide plate; 607, guide rod; 608, L-shaped inclined plate; 609, adjusting pin. Detailed implementation manners

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0017] Please refer to Figures 1 to 9 , the present invention provides a technical solution: a casting tooling for a hydraulic motor housing, including a tooling support 1, a support plate 2 is movably installed on the top of the tooling support 1, a casting die holder 3 is fixedly installed on the top of the support plate 2, and a casting punch 4 is movably installed on the top of the casting die holder 3. It should be noted that: a liquid injection valve and an exhaust valve are provided on the top of the casting punch 4 to facilitate the pouring of molten metal and the discharge of bubbles inside the molten metal.

[0018] It further includes: a bubble elimination mechanism 5, the bubble elimination mechanism 5 is movably installed between the bottom of the support plate 2 and the inner bottom surface of the tooling support 1, and the bubble elimination mechanism 5 is used to eliminate the bubbles generated after the molten metal is poured into the mold cavity.

[0019] A mode conversion mechanism 6 that cooperates with the bubble elimination mechanism 5 is movably installed on the inner bottom surface of the tooling support 1, and the mode conversion mechanism 6 is used to switch the operation mode of the bubble elimination mechanism 5.

[0020] In this embodiment, as Figures 1 to 9As shown in the figure, the bubble elimination mechanism 5 includes a support cylinder 501, which is rotatably connected to the inner bottom surface of the tooling support 1. A driving gear ring 502 is fixedly sleeved on the surface of the support cylinder 501. A driving motor is fixedly connected to the inner bottom surface of the tooling support 1, and a driving rack 503 is fixedly connected to the rotating end of the driving motor. The side wall of the driving rack 503 meshes with the side wall of the driving gear ring 502. It should be noted that: an installation bearing is fixedly connected between the lower part of the support cylinder 501 and the inner bottom surface of the tooling support 1 to ensure the stable rotation of the support cylinder 501 inside the tooling support 1.

[0021] A shaft rod 504 is rotatably connected to the top of the support cylinder 501. A lever 505 is rotatably connected to the middle of the shaft rod 504. A connecting block 506 is hinged to the top of the lever 505. The top of the connecting block 506 is fixedly connected to the bottom of the support plate 2. A universal ring 507 is rotatably connected to the upper part of the connecting block 506. L-shaped support blocks 508 are rotatably connected to the left and right sides of the universal ring 507. A support bearing 509 is fixedly connected between the two L-shaped support blocks 508. The outer ring of the support bearing 509 is fixedly connected to the inner wall of the tooling support 1. A limiting component 510 that cooperates with the mode conversion mechanism 6 is movably connected between the bottom of the support bearing 509 and the inner bottom surface of the tooling support 1. It should be noted that: mounting blocks are symmetrically and fixedly connected to the top of the support cylinder 501, and the shaft rod 504 is rotatably connected between the two mounting blocks; the limiting component 510 enables the support bearing 509 and the L-shaped support block 508 to switch between the locked state and the rotating state, and this state switch is driven by the mode conversion mechanism 6; when the support bearing 509 and the L-shaped support block 508 are in the locked state, the connecting block 506 can drive the support plate 2 to rotate and shake inside the universal ring 507, and when the support bearing 509 and the L-shaped support block 508 are in the active state, the support bearing 509 and the L-shaped support block 508 can drive the universal ring 507, the connecting block 506 and the support plate 2 to rotate horizontally at the inner wall position of the tooling support 1.

[0022] A wedge-shaped hinge block 511 is hinged to the lower part of the lever 505. The bottom of the wedge-shaped hinge block 511 is rotatably connected to an adjusting rod 512. An adjusting groove 513 is formed in the lower part of the inner wall of the tooling support 1. The bottom of the adjusting rod 512 extends to the inner wall of the adjusting groove 513 and is movably installed on the surface of the mode conversion mechanism 6. It should be noted that when the mode conversion mechanism 6 drives the adjusting rod 512 and the wedge-shaped hinge block 511 to rise, the wedge-shaped hinge block 511 drives the lever 505 to deflect on the shaft rod 504, so that the upper part of the shaft rod 504 drives the connecting block 506 and the support plate 2 to deflect and be in an inclined state at the position of the universal ring 507. At this time, during the rotation of the support cylinder 501, the support plate 2, the casting female die seat 3 and the casting male die 4 will produce a shaking effect; when the mode conversion mechanism 6 drives the adjusting rod 512 and the wedge-shaped hinge block 511 to move downward, the wedge-shaped hinge block 511 will pull the lever 505 to be in a vertical state. At this time, the connecting block 506 and the support plate 2 at the top of the lever 505 deflect to be in a horizontal state, and during the rotation of the support cylinder 501, the support plate 2, the casting female die seat 3 and the casting male die 4 will produce a centrifugal exhaust effect.

[0023] A semi-tooth ring 514 is fixedly sleeved in the middle of the outer wall of the support cylinder 501.

[0024] In this embodiment, as Figures 1 to 9 shown, the limiting component 510 includes a limiting tooth ring 5101, and the limiting tooth ring 5101 is fixedly connected to the bottom position of the inner ring of the support bearing 509.

[0025] Spring telescopic rods 5102 are fixedly connected to both sides of the inner bottom surface of the tooling support 1. The top of the spring telescopic rod 5102 is fixedly connected to a cushion block 5103 that cooperates with the mode conversion mechanism 6. The top of the cushion block 5103 is fixedly connected to a limiting rod 5104. The middle part of the limiting rod 5104 is vertically slidably arranged at the inner wall position of the tooling support 1. The top of the limiting rod 5104 is fixedly connected to an arc-shaped limiting tooth plate 5105 that cooperates with the limiting tooth ring 5101. It should be noted that a U-shaped sliding sleeve is fixedly connected to the inner wall of the tooling support 1, and the limiting rod 5104 is vertically slidably arranged in the middle of the U-shaped sliding sleeve; when the arc-shaped limiting tooth plate 5105 rises with the limiting rod 5104, the arc-shaped limiting tooth plate 5105 is inserted into the bottom of the limiting tooth ring 5101. At this time, neither the limiting tooth ring 5101 nor the L-shaped support block 508 at the inner ring position of the support bearing 509 can rotate. In this state, the support plate 2 and the connecting block 506 can use the two L-shaped support blocks 508 as support points and shake and rotate at the position of the universal ring 507 between the two L-shaped support blocks 508.

[0026] In this embodiment, as Figures 1 to 9As shown, a main waist-shaped groove is formed in the lower part of the connecting block 506, and a main hinge pin is fixedly connected to the upper part of the lever 505. The upper part of the lever 505 is slidably arranged inside the main waist-shaped groove through the main hinge pin. It should be noted that when the upper part of the lever 505 deflects, it will cooperate with the main hinge pin and the main waist-shaped groove to drive the connecting block 506 to deflect at the position of the universal ring 507.

[0027] A secondary waist-shaped groove is formed in the lower part of the lever 505, and an inclined groove is formed in the upper part of the wedge-shaped hinge block 511. A secondary hinge pin is movably connected between the inclined groove and the inner wall of the secondary waist-shaped groove, and a connecting bearing is fixedly connected between the bottom of the wedge-shaped hinge block 511 and the top of the adjusting rod 512. It should be noted that a groove is formed in the upper part of the wedge-shaped hinge block 511, and the lower part of the lever 505 is inserted into the groove. When the wedge-shaped hinge block 511 rises along with the adjusting rod 512, the wedge-shaped hinge block 511 cooperates with the secondary waist-shaped groove through the secondary hinge pin, enabling the lever 505 to deflect with the shaft rod 504 as the fulcrum; under the action of the connecting bearing, when the support cylinder 501 drives the shaft rod 504, the lever 505 and the wedge-shaped hinge block 511 to rotate, the wedge-shaped hinge block 511 will not drive the adjusting rod 512 to rotate, avoiding interference.

[0028] In this embodiment, as Figures 1 to 9 shown, hinge rings are fixedly connected to the periphery of the universal ring 507. A connecting pin is rotatably connected inside the hinge ring. The front and rear two connecting pins are fixedly connected to the side wall of the connecting block 506, and the left and right two connecting pins are respectively fixedly connected to the side walls of the two L-shaped support blocks 508. It should be noted that the lengths of the front and rear two connecting pins are set to be twice the lengths of the left and right two connecting pins for stable connection with the connecting block 506; through the arrangement of the universal ring 507, the four hinge rings and the two L-shaped support blocks 508, the connecting block 506 can drive the support plate 2 to shake at the position of the universal ring 507, facilitating the switching from the horizontal rotation state to the two-dimensional shaking rotation state.

[0029] In this embodiment, as Figures 1 to 9 shown, the mode conversion mechanism 6 includes two reciprocating lead screws 601. The two reciprocating lead screws 601 are symmetrically and rotatably connected to the inner bottom surface of the tooling support 1. A circular gear 602 that cooperates with the semi-tooth ring 514 is fixedly sleeved on the top of the reciprocating lead screw 601. A nut 603 is threadedly connected to the surface of the reciprocating lead screw 601, and a T-shaped pressing rod 604 that cooperates with the cushion block 5103 is fixedly connected to the top of the nut 603. It should be noted that when the support cylinder 501 drives the semi-tooth ring 514 to rotate, the semi-tooth ring 514 intermittently meshes with the circular gear 602 and drives the reciprocating lead screw 601 to rotate, causing the nut 603 on the reciprocating lead screw 601 to drive the T-shaped pressing rod 604 to move vertically back and forth inside the movable groove 605.

[0030] The interior of the tooling support 1 is symmetrically provided with movable slots 605 that cooperate with the adjustment slots 513. The two movable slots 605 correspond one-to-one with the two T-shaped pressure rods 604. A Z-shaped guide plate 606 is slidably arranged inside the movable slot 605. The lower end of the T-shaped pressure rod 604 extends into the corresponding movable slot 605 and is movably installed in the middle of the Z-shaped guide plate 606. A guide rod 607 is fixedly connected to the side wall of the Z-shaped guide plate 606. One end of the guide rod 607 extends into the adjustment slot 513 and is fixedly connected with an L-shaped inclined plate 608. The two L-shaped inclined plates 608 are symmetrically arranged on both sides of the adjustment rod 512. Adjustment pins 609 are fixedly connected to both sides of the adjustment rod 512. The two adjustment pins 609 are respectively slidably arranged in the middle of the two L-shaped inclined plates 608. It should be noted that: an L-shaped groove is provided in the middle of the L-shaped inclined plate 608, and the adjustment pin 609 is slidably arranged inside the corresponding L-shaped groove.

[0031] In this embodiment, as Figures 1 to 9 shown, a guide pin is fixedly connected to the lower end of the T-shaped pressure rod 604. A Z-shaped guide groove is provided in the middle of the Z-shaped guide plate 606. The guide pin is slidably arranged inside the Z-shaped guide groove. The two Z-shaped guide plates 606 are symmetrically arranged. It should be noted that: the cross-section of the Z-shaped guide plate 606 is U-shaped. The lower part of the T-shaped pressure rod 604 is inserted into the U-shaped cavity in the middle of the Z-shaped guide plate 606. When the T-shaped pressure rod 604 moves downward, the guide pin cooperates with the Z-shaped guide groove to slide, so that the Z-shaped guide plate 606 drives the guide rod 607 to move towards the adjustment slot 513. At this time, when the two guide rods 607 drive the corresponding L-shaped inclined plates 608 to move relatively, the adjustment pin 609 on the adjustment rod 512 cooperates with the L-shaped inclined plate 608 to slide, so that the adjustment rod 512 moves upward. On the contrary, when the T-shaped pressure rod 604 rises with the screw sleeve 603, the adjustment rod 512 moves downward; and through the structural setting of the Z-shaped guide groove, during the up-and-down reciprocating movement of the T-shaped pressure rod 604, the Z-shaped guide plate 606 can be intermittently driven to move, so that the up-and-down movement states of the adjustment rod 512 are also in an intermittent switching state, ensuring that there is sufficient time for bubble elimination during the horizontal rotation and wobbling rotation of the support plate 2.

[0032] In this embodiment, as Figures 1 to 9 shown, an adjustment bearing is fixedly connected to the bottom of the support plate 2. Four positioning rods are ball-jointed equidistantly along the circumference at the bottom of the adjustment bearing. The lower part of the positioning rod is movably inserted through the top of the tooling support 1. It should be noted that: the setting of the positioning rod can effectively ensure the stability of the installation of the support plate 2, and under the action of the adjustment bearing, the rotation of the support plate 2 will not interfere with the positioning rod.

[0033] The usage method and advantages of the present invention: The hydraulic motor housing casting tooling works as follows: As Figures 1 to 9As shown, during use, first, the casting female die base 3 and the casting male die 4 are closed, then the molten metal is injected into the interior of the mold cavity. Then, the driving motor is started to drive the driving rack 503 to engage with the driving gear ring 502, so that the support cylinder 501 drives the connecting block 506 and the support plate 2 to rotate through the shaft rod 504 and the lever 505. During the process of injecting the molten metal, the bubbles inside the liquid are discharged; When the screw sleeve 603 is in the lower position of the reciprocating screw rod 601, the T-shaped pressing rod 604 on the upper part of the screw sleeve 603 is in the downward moving state. At this time, the guide pin at the lower part of the T-shaped pressing rod 604 is engaged with the Z-shaped guide groove on the surface of the Z-shaped guide plate 606 inside the movable groove 605, so that the Z-shaped guide plate 606 moves closer to the adjusting groove 513. During the relative movement of the two Z-shaped guide plates 606, the L-shaped inclined plate 608 is driven to move synchronously through the guide rod 607. At this time, the two L-shaped inclined plates 608 move relatively, and during the sliding process of the L-shaped groove in cooperation with the adjusting pin 609, the adjusting rod 512 pulls the wedge-shaped hinge block 511 to move downward. Then, the wedge-shaped hinge block 511 pulls the lever 505 to rotate vertically on the shaft rod 504 through the hinge pin, and during the deflection process of the upper part of the lever 505, the connecting block 506 and the support plate 2 are deflected to the horizontal state on the universal ring 507. At this time, the support cylinder 501 drives the support plate 2 in the horizontal state to rotate through the cooperation of the shaft rod 504 and the lever 505, so that the support plate 2 generates centrifugal force during the rotation process of the support cylinder 501, and the bubbles inside the liquid between the casting female die base 3 and the casting male die 4 are discharged; Due to the complex cavity structure and blind areas inside some casting molds, a small amount of air bubbles will accumulate. Relying solely on the centrifugal method cannot completely discharge the air bubbles. During the rotation of the support cylinder 501, the semi-toothed ring 514 will periodically engage with the circular gear 602 at the top of the reciprocating lead screw 601, causing the nut sleeve 603 and the T-shaped pressure rod 604 to slowly rise. When the guide pin at the lower part of the T-shaped pressure rod 604 moves to the inclined plane position in the middle of the Z-shaped guide groove, the upper part of the T-shaped pressure rod 604 releases the pressure on the cushion block 5103, causing the spring telescopic rod 5102 at the bottom of the cushion block 5103 to press the cushion block 5103 and the limit rod 5104 to rise, so that the limit rod 5104 drives the arc-shaped limit tooth plate 5105 to insert into the limit tooth ring 5101 at the bottom of the support bearing 509, limiting the support bearing 509 and the L-shaped support block 508, restricting both sides of the universal ring 507. At the same time, as the two Z-shaped guide plates 606 move away from each other, during the sliding cooperation between the L-shaped inclined plate 608 and the adjusting pin 609, the adjusting pin 609 drives the adjusting rod 512 to rise. As the wedge-shaped hinge block 511 rising with the adjusting rod 512 deflects the lower part of the lever 505 with the shaft rod 504 as the fulcrum through the hinge pin, the upper part of the lever 505 drives the connecting block 506 and the support plate 2 to deflect inside the universal ring 507, making the casting female die seat 3 and the casting male die 4 at the top of the support plate 2 in an inclined state. At this time, during the rotation of the support cylinder 501 driving the casting mold at the top of the support plate 2 through the connecting block 506, the casting mold is in a shaking state, which can effectively discharge the air bubbles accumulated in the blind area of the mold cavity; As the support cylinder 501 continues to rotate, the semi-toothed ring 514 continues to engage and drive with the circular gear 602. After the nut sleeve 603 drives the T-shaped pressure rod 604 to move down again, the adjusting rod 512 moves down again and, with the cooperation of the wedge-shaped hinge block 511, the lever 505 and the connecting block 506, the connecting block 506 drives the support plate 2 to reset and adjust to the horizontal state. At the same time, the T-shaped pressure rod 604 presses the cushion block 5103 and the limit rod 5104 to move down to release the engagement state with the limit tooth ring 5101, enabling the support plate 2 and the universal ring 507 to rotate again on the tooling support 1, accelerating the discharge of the air bubbles discharged and floating during the above shaking process through centrifugal force. By switching the horizontal rotation of the casting female die seat 3 and the casting male die 4 to the shaking mode and then switching to the horizontal rotation mode, it can effectively prevent air bubbles from depositing in the blind area of the mold cavity and quickly discharge the air bubbles from the molten metal inside the mold cavity, improving the air bubble discharge effect and ensuring the machining quality of the mold casting.

[0034] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and the above embodiments and the descriptions in the specification are only preferred examples of the present invention, which are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A casting tooling for a hydraulic motor housing, comprising a tooling support (1), on the top of which a support plate (2) is movably installed, a casting female die seat (3) is fixedly installed on the top of the support plate (2), and a casting male die (4) is movably installed on the top of the casting female die seat (3); It is characterized in that It further includes: A bubble elimination mechanism (5), which is movably installed between the bottom of the support plate (2) and the inner bottom surface of the tooling support (1), and the bubble elimination mechanism (5) is used to eliminate the bubbles generated after the metal liquid is poured into the mold cavity; A mode conversion mechanism (6) that is movably installed on the inner bottom surface of the tooling support (1) and cooperates with the bubble elimination mechanism (5), and the mode conversion mechanism (6) is used to switch the operation mode of the bubble elimination mechanism (5).

2. The casting tooling for a hydraulic motor housing according to claim 1, characterized in that: The bubble elimination mechanism (5) includes: a support cylinder (501) rotatably connected to the inner bottom surface of the tooling support (1), and a driving gear ring (502) fixedly sleeved on the outer wall of the support cylinder (501); A driving motor fixed to the inner bottom surface of the tooling support (1), and a driving tooth bar (503) meshing with the driving gear ring (502) is fixedly connected to the rotating end thereof; A shaft rod (504) rotatably connected to the top of the support cylinder (501), and a lever (505) rotatably connected to the middle of the shaft rod (504), and a wedge-shaped hinge block (511) is hinged to the bottom thereof; A connecting block (506) hinged to the top of the lever (505), the top of the connecting block (506) is fixedly connected to the bottom of the support plate (2), and a universal ring (507) is rotatably connected to the upper part of the connecting block (506). L-shaped support blocks (508) are rotatably connected to both the left and right sides of the universal ring (507). A support bearing (509) is fixedly connected between the two L-shaped support blocks (508). The outer ring of the support bearing (509) is fixedly connected to the inner wall of the tooling support (1). A limiting component (510) cooperating with the mode conversion mechanism (6) is movably connected between the bottom of the support bearing (509) and the inner bottom surface of the tooling support (1); The bottom of the wedge-shaped hinge block (511) is rotatably connected to an adjusting rod (512), and the adjusting rod (512) extends into an adjusting groove (513) on the inner wall of the tooling support (1) and is movably connected to the mode conversion mechanism (6); A semi-tooth gear ring (514) is fixedly sleeved in the middle of the outer wall of the support cylinder (501).

3. The casting tooling for a hydraulic motor housing according to claim 2, characterized in that: The limiting component (510) includes a limiting gear ring (5101), and the limiting gear ring (5101) is fixedly connected to the bottom position of the inner ring of the support bearing (509); On both sides of the inner bottom surface of the tooling support (1), telescopic springs (5102) are fixedly connected. The top of the telescopic spring (5102) is fixedly connected with a cushion block (5103) that cooperates with the mode conversion mechanism (6). The top of the cushion block (5103) is fixedly connected with a limiting rod (5104). The middle part of the limiting rod (5104) is vertically slidably arranged at the inner wall position of the tooling support (1). The top of the limiting rod (5104) is fixedly connected with an arc-shaped limiting tooth plate (5105) that cooperates with the limiting tooth ring (5101).

4. A casting tooling for a hydraulic motor housing according to claim 3, characterized in that: A main waist-shaped groove is formed in the lower part of the connecting block (506). The upper part of the lever (505) is fixedly connected with a main hinge pin. The upper part of the lever (505) is slidably arranged inside the main waist-shaped groove through the main hinge pin. A secondary waist-shaped groove is formed in the lower part of the lever (505). An inclined groove is formed in the upper part of the wedge-shaped hinge block (511). A secondary hinge pin is movably connected between the inclined groove and the inner wall of the secondary waist-shaped groove. A connecting bearing is fixedly connected between the bottom of the wedge-shaped hinge block (511) and the top of the adjusting rod (512).

5. A casting tooling for a hydraulic motor housing according to claim 4, characterized in that: Hinge rings are fixedly connected to the periphery of the universal ring (507). A connecting pin is rotatably connected inside the hinge ring. The front and rear connecting pins are fixedly connected to the side wall of the connecting block (506). The left and right connecting pins are respectively fixedly connected to the side walls of the two L-shaped support blocks (508).

6. The casting tooling for a hydraulic motor housing according to claim 5, wherein: The mode conversion mechanism (6) includes: a reciprocating lead screw (601) symmetrically rotating on the inner bottom surface of the tooling support (1), and a circular gear (602) fixedly connected to the top thereof and meshing with a semi-tooth gear ring (514); A nut sleeve (603) threadedly connected to the reciprocating lead screw (601), and a T-shaped pressing rod (604) fixedly connected to the top of the nut sleeve (603); An activity groove (605) communicating with the adjusting groove (513) is formed inside the tooling support (1). A Z-shaped guide plate (606) is slidably arranged in the activity groove (605); The lower end of the T-shaped pressing rod (604) is slidably connected to the middle of the Z-shaped guide plate (606); A guide rod (607) is fixedly connected to the side wall of the Z-shaped guide plate (606). The guide rod (607) extends into the adjusting groove (513) and is fixedly connected with an L-shaped inclined plate (608); Adjusting pins (609) are fixedly connected to both sides of the adjusting rod (512). The adjusting pins (609) are slidably arranged in the middle of the L-shaped inclined plate (608).

7. A casting tooling for a hydraulic motor housing according to claim 6, characterized in that: A guide pin is fixedly connected to the lower end of the T-shaped pressing rod (604). A Z-shaped guide groove is formed in the middle of the Z-shaped guide plate (606). The guide pin is slidably arranged inside the Z-shaped guide groove. The two Z-shaped guide plates (606) are symmetrically arranged.

8. A casting tooling for a hydraulic motor housing according to claim 7, characterized in that: An adjusting bearing is fixedly connected to the bottom of the support plate (2). Four positioning rods are ball-jointed at equal intervals along the circumference at the bottom of the adjusting bearing. The lower parts of the positioning rods are movably inserted through the top of the tooling support (1).

Images