Gearbox shell casting device

Abstract

The invention discloses a gearbox shell casting device and relates to the technical field of casting equipment, the gearbox shell casting device comprises a rack, a movable mold assembly and a fixed mold assembly, the movable mold assembly comprises an upper mold and a sprue bush, a guide column is fixedly mounted at the edge of the outer side of the upper mold, and a horseshoe-shaped clamping opening is formed in the side of the outer side of the guide column; the fixed die assembly comprises a lower die and a connecting plate, a rectangular hole is formed in the connecting position of the connecting plate and the lower die, through holes are formed in the positions, close to the two ends, of the outer side of the connecting plate, and the right-angle inserting plate is fixedly installed on the edge side of the outer side of the sprue bush, and a semicircular groove is formed in the bottom end of the right-angle inserting plate; self-locking assemblies are installed at the corresponding positions of the bottom of the lower die, and the positions of the self-locking assemblies correspond to the positions of the guide columns. According to the gearbox shell casting device, the anti-loosening effect is achieved, guiding can be conducted, fixing can be conducted in time, deviation and loosening are not prone to occurring, the casting quality can be improved, and safety and reliability are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of casting equipment, in particular to a gearbox housing casting device. Background Art

[0002] The gearbox, also known as the transmission, is an automotive accessory used to change the speed and torque from the engine, and can fix or change the transmission ratio of the output shaft and the input shaft in stages. With the continuous development of science and technology and the rapid progress of society, there are more and more applications for automobiles, and thus the use of gearboxes is also increasing. The gearbox housing, that is, the structure used to install the transmission mechanism and its accessories, mainly produces speed changes and pitch changes by setting different gear combinations and hydraulic systems, thereby achieving speed changes. The gearbox housing is mainly obtained by casting, that is, a closed multi-faceted structure of a certain shape is used as the mold of the preform, and the casting material heated into a liquid is passed into the mold. After the liquid casting material is cooled, a molded housing blank or part is obtained.

[0003] At present, when casting the gearbox housing, the connection between the upper mold and the lower mold is not stable enough, and it is easy to be offset, resulting in low casting accuracy of the gearbox housing, which in turn affects the overall casting quality. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a gearbox housing casting device, comprising: A frame, the frame having a supporting frame body, a supporting ceiling fixedly mounted on the top of the frame, a hydraulic cylinder fixedly mounted on the top of the supporting ceiling, two hydraulic cylinders, and the two hydraulic cylinders are symmetrically mounted along the middle of the supporting ceiling; A movable mold assembly, which is used to load the movable mold and perform mold closing, and the movable mold assembly is installed at the output end of the hydraulic cylinder; Wherein, the movable mold assembly includes an upper mold and a sprue sleeve, the top of the upper mold is fixedly installed with the output end of the hydraulic cylinder, the sprue sleeve is installed in the middle of the top of the upper mold, a guide column is fixedly installed at the edge of the outer side of the upper mold, a horseshoe-shaped clamping interface is provided at the side of the outer side of the guide column, and the horseshoe-shaped clamping interface is provided at a position close to the bottom end of the guide column, and a right-angle plug plate is fixedly installed at the side of the outer side of the sprue sleeve, and a semicircular groove is provided at the bottom end of the right-angle plug plate. The upper mold can be driven to move downward and upward by the extension and contraction of the output end of the hydraulic cylinder, so as to adjust the position of the upper mold, which is helpful for mold closing and demoulding, and when the output end of the hydraulic cylinder is extended, a downward pressing force can be applied to the upper mold, which is helpful for casting the gearbox housing; The gearbox housing casting device also includes: A fixed mold assembly, which is used to load the fixed mold and assist in casting, and is installed in the middle of the top of the frame; Wherein, the fixed die assembly comprises a lower die and a connecting plate, the connecting plate is installed at a corresponding position on the outer side of the lower die, the lower die is installed directly below the upper die, the lower die is fixedly installed through the middle of the connecting plate and the top of the frame, a rectangular hole is provided at the connection between the connecting plate and the lower die, through holes are provided on the outer side of the connecting plate and near both ends, and self-locking assemblies are installed at corresponding positions on the bottom of the lower die, the position of the self-locking assemblies corresponds to the position of the guide column, and when the upper die is driven downward by the output end of the hydraulic cylinder, the bottom end of the guide column is inserted into the through hole; At the same time, the bottom end of the right-angle insert plate is inserted into the rectangular hole. As the upper mold continues to move downward, the guide column and the right-angle insert plate move downward together, thereby guiding the upper mold, so that the upper mold moves downward smoothly, thereby facilitating the merging of the upper mold and the lower mold, and completing the mold closing smoothly.

[0005] Preferably, the guide column is installed vertically to facilitate guiding, and there are two right-angle plug plates, and the two right-angle plug plates are installed symmetrically along the gate sleeve.

[0006] Preferably, the rectangular hole is opened directly below the right-angle plug plate to facilitate the right-angle plug plate to be inserted into the rectangular hole, and the through hole is opened directly below the guide column to facilitate the guide column to be inserted into the through hole.

[0007] The guide pin is matched with the through hole, and the right-angle plug plate is matched with the rectangular hole. At this time, the guide pin and the right-angle plug plate are clamped with the lower mold to achieve a clamping effect, so that the upper mold is not easy to deviate and the influence of external force is reduced.

[0008] Preferably, the self-locking assembly includes a fixed base, the fixed base is fixedly installed with the bottom of the lower mold by screws, a strip guide rail is fixedly installed at the side of the outer side of the fixed base, a clamping block is slidably installed inside the strip guide rail, and the clamping block is installed at two symmetrical ends of the outer side of the strip guide rail, and an elastic reset strip is fixedly installed on the outer side of the clamping block, and the outer side of the guide column is fitted with the end of the clamping block, so that the clamping block is pushed inward, so that the clamping blocks symmetrical on both sides move toward the inner direction of the strip guide rail, and the elastic reset strip is compressed; As the horseshoe-shaped card interface moves downward to the position of the card block, and under the action of the elastic force provided by the elastic reset strip, the card block cooperates with the horseshoe-shaped card interface to complete the card connection, and then the guide column is self-locked, making full use of the interaction between the structures to connect the structures together.

[0009] Preferably, the outer side of the clamping block fits with the inner side of the strip guide rail, so that the clamping block moves smoothly and is not easy to shake. The elastic reset strip is wavy to facilitate elastic deformation after being squeezed, and the elastic reset strip is installed in the middle of the strip guide rail.

[0010] Preferably, a casting sand processing mechanism is installed on the side of the outer side of the frame, and the casting sand processing mechanism includes a shell, the edge of the outer side of the shell is fixedly installed to the outer side of the frame by bolts, a frame is fixedly installed in the middle of the inside of the shell, a sand filter net is fixedly installed in the middle of the outside of the frame, an electric telescopic rod is fixedly installed on the side of the outer side of the shell, the output end of the electric telescopic rod extends to the inside of the shell, and a sand rubbing assembly is installed on the output end of the electric telescopic rod.

[0011] Preferably, a top cover is installed in the middle of the top of the shell, and a feed hopper is installed at the side of the top of the shell, the position of the feed hopper corresponds to the position of the top cover, and a sand discharge port is installed in the middle of the bottom of the shell, and the weight of the casting sand itself is used to fall. When the casting sand falls onto the sand filter net, the sand filter net is installed at an angle so that the sand falling onto the sand filter net can roll down freely, so that the sand filter net can filter the debris in the sand in time, reduce the mixing of debris in the sand, and help the subsequent reuse of the sand.

[0012] Preferably, the sand filter net is installed at an angle, and the electric telescopic rod and the sand rubbing assembly are installed at the same height.

[0013] Preferably, the sand rubbing assembly includes a rubbing plate and a fork-shaped connecting slider, the outer side of the rubbing plate is fixedly installed with the output end of the electric telescopic rod, the rubbing plate is installed at a position close to the sand filter net, the fork-shaped connecting slider is slidably installed at the outer side of the shell and the outer side of the frame The middle of the top of the fork-shaped connecting slider is fixedly installed with a zigzag connecting rod, the bottom end of the zigzag connecting rod is fixedly installed with the curved surface of the outer side of the rubbing plate, the end of the zigzag connecting rod away from the rubbing plate is fixedly installed with a supporting spring, and the end of the support spring away from the zigzag connecting rod is fixedly installed with a knocking rod, and a curved surface extension rib is fixedly installed at the edge of the top of the rubbing plate, and the rolling speed of the molding sand at the top of the sand filter net can be slowed down by installing the rubbing plate above the sand filter net; At the same time, the extension and contraction of the output end of the electric telescopic rod are utilized to drive the kneading plate to move back and forth in a straight line. Thus, the molding sand above the sand filter net can be kneaded through the reciprocating movement of the kneading plate, so that the sand clumps formed together can be crushed in time, and then the molding sand can be processed. Moreover, through the connection of the zigzag connecting rod, the fork-shaped connecting slider can slide, so that the movement of the kneading plate is more stable and smooth.

[0014] When the zigzag connecting rod moves back and forth, the elastic support of the supporting spring can drive the knocking rod to move back and forth, and the knocking rod is installed just below the semicircular groove, so that after the moving knocking rod is separated from the semicircular groove, the knocking rod is reset in time under the elastic force of the supporting spring, and then the bottom of the right-angle plug plate is knocked, so that the right-angle plug plate vibrates, thereby transmitting the vibration to the gate sleeve, promoting the downward flow of molten metal in the gate sleeve, and not easily causing solidification due to slow flow rate, and fully connecting the structures together.

[0015] Preferably, the kneading plate is installed at an angle, and the kneading plate, zigzag connecting rod, supporting spring and knocking rod are installed at the same height. When the vibration is transmitted to the gate sleeve, the molten metal is affected by the vibration and can discharge the bubbles wrapped in the molten metal in time under the action of the vibration, thereby reducing the influence of the bubbles and improving the casting quality.

[0016] The present invention provides a gearbox housing casting device having the following beneficial effects: 1. The gearbox housing casting device utilizes the extension and contraction of the output end of the hydraulic cylinder to drive the upper mold to move downward and upward, thereby adjusting the position of the upper mold, which is helpful for mold closing and demolding, and when the output end of the hydraulic cylinder is extended, a downward pressing force can be applied to the upper mold, which is helpful for casting the gearbox housing.

[0017] 2. The gearbox housing casting device uses the bottom end of the guide column to be inserted into the through hole, and the bottom end of the right-angle plug plate is inserted into the rectangular hole. As the upper mold continues to move downward, the guide column and the right-angle plug plate move downward together, thereby guiding the upper mold, so that the upper mold moves downward smoothly, thereby facilitating the merging of the upper mold and the lower mold, and smoothly completing the mold closing.

[0018] 3. The gearbox housing casting device, when the upper mold and the lower mold are closed, the guide pillar is matched with the through hole, and the right-angle plug plate is matched with the rectangular hole. At this time, the guide pillar and the right-angle plug plate are clamped with the lower mold to achieve a clamping effect, so that the upper mold is not easy to deviate and the influence of external force is reduced.

[0019] Fourth, the gearbox housing casting device, when the guide column is inserted into the through hole, the outer side of the guide column is fitted with the end of the clamping block, so that the clamping block is pushed inward, so that the clamping blocks symmetrical on both sides move toward the inner direction of the strip guide rail, and the horseshoe-shaped clamping interface moves downward to the position of the clamping block, and under the action of the elastic force provided by the elastic reset strip, the clamping block and the horseshoe-shaped clamping interface cooperate to complete the clamping, thereby self-locking the guide column.

[0020] 5. The gearbox housing casting device utilizes the weight of the casting sand to fall. When the molding sand falls onto the sand filter net, the sand filter net is installed at an angle so that the molding sand falling onto the sand filter net can roll down freely, thereby allowing the sand filter net to filter the debris in the molding sand in time, reducing the mixing of debris in the molding sand, which is conducive to the subsequent reuse of the molding sand.

[0021] 6. The gearbox housing casting device is installed above the sand filter net through a kneading plate, which can slow down the rolling speed of the molding sand on the top of the sand filter net. At the same time, the kneading plate is driven to move back and forth in a straight line by utilizing the extension and contraction of the output end of the electric telescopic rod. Therefore, the molding sand above the sand filter net can be kneaded through the reciprocating movement of the kneading plate, so that the sand clumps formed together can be crushed in time, and then the molding sand can be processed. Moreover, through the connection of the zigzag connecting rod, the fork-shaped connecting slider can slide, so that the movement of the kneading plate is more stable and smooth.

[0022] 7. The gearbox housing casting device uses a knocking rod installed just below the semicircular groove, so that after the moving knocking rod is separated from the semicircular groove, the knocking rod is reset in time under the elastic force of the supporting spring, and then the bottom of the right-angle plug plate is knocked, so that the right-angle plug plate vibrates, thereby transmitting the vibration to the gate sleeve, promoting the downward flow of the molten metal in the gate sleeve, and it is not easy to solidify due to too slow flow rate.

[0023] 8. When the vibration is transmitted to the sprue sleeve, the gearbox housing casting device is affected by the vibration, so that the molten metal can discharge the bubbles wrapped in the molten metal in time under the action of the vibration, thereby reducing the influence of the bubbles and improving the casting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the gearbox housing casting device of the present invention; Figure 2 It is a schematic diagram of the side structure of the gearbox housing casting device of the present invention; Figure 3 It is a schematic diagram of the connection structure between the movable mold assembly and the hydraulic cylinder of the present invention; Figure 4 It is a schematic diagram of the overall structure of the movable mold assembly of the present invention; Figure 5 It is a schematic diagram of the connection structure between the fixed mold assembly and the frame of the present invention; Figure 6 It is a schematic diagram of the connection structure between the movable mold assembly and the fixed mold assembly of the present invention; Figure 7 It is a schematic diagram of the overall structure of the self-locking assembly of the present invention; Figure 8 It is a schematic diagram of the connection structure between the casting sand processing mechanism and the frame of the present invention; Fig. 9 It is a schematic diagram of the overall structure of the casting sand processing mechanism of the present invention; Fig.10 This is a schematic diagram of the connection structure between the sand rubbing component and the housing of the present invention; Fig.11 It is a schematic diagram of the overall structure of the sand rubbing component of the present invention.

[0025] In the figure: 1, frame; 2, supporting ceiling; 3, hydraulic cylinder; 4, moving mold assembly; 5, fixed mold assembly; 6, casting sand processing mechanism; 41, upper mold; 42, guide column; 43, horseshoe-shaped card interface; 44, right-angle plug plate; 45, semicircular groove; 46, gate sleeve; 51, lower mold; 52, rectangular hole; 53, through hole; 54, self-locking assembly; 55, connecting plate; 541, fixed base; 542, strip guide rail; 543, card block; 544, elastic reset strip; 61, shell; 62, frame; 63, electric telescopic rod; 64, sand rubbing assembly; 65, top cover; 66, feed hopper; 67, sand discharge port; 68, sand filter net; 641, rubbing board; 642, fork-shaped connecting slider; 643, zigzag connecting rod; 644, supporting spring; 645, knocking rod; 646, curved extension rib. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0027] The first embodiment, as Figure 1-Figure 4 As shown, the present invention provides a technical solution: a gearbox housing casting device, comprising: A frame 1, the frame 1 having a supporting frame body, a supporting ceiling 2 is fixedly installed on the top of the frame 1, a hydraulic cylinder 3 is fixedly installed on the top of the supporting ceiling 2, there are two hydraulic cylinders 3, and the two hydraulic cylinders 3 are symmetrically installed along the middle of the supporting ceiling 2; A movable mold assembly 4, which is used to load the movable mold and perform mold closing, and the movable mold assembly 4 is installed at the output end of the hydraulic cylinder 3; Among them, the movable mold assembly 4 includes an upper mold 41 and a gate sleeve 46. The top of the upper mold 41 is fixedly installed with the output end of the hydraulic cylinder 3, and the gate sleeve 46 is installed in the middle of the top of the upper mold 41. A guide column 42 is fixedly installed at the edge of the outer side of the upper mold 41. A horseshoe-shaped clamping interface 43 is opened at the side of the outer side of the guide column 42. The horseshoe-shaped clamping interface 43 is opened at a position close to the bottom end of the guide column 42. A right-angle plug plate 44 is fixedly installed at the side of the outer side of the gate sleeve 46, and a semicircular groove 45 is opened at the bottom end of the right-angle plug plate 44. The staff starts the hydraulic cylinder 3 to work. The extension and contraction of the output end of the hydraulic cylinder 3 can drive the upper mold 41 to move downward and upward, thereby adjusting the position of the upper mold 41, which is helpful for mold closing and demoulding, and when the output end of the hydraulic cylinder 3 is extended, a downward pressing force can be applied to the upper mold 41, which is helpful for casting the gearbox housing.

[0028] The guide pillar 42 is installed vertically to facilitate guiding. There are two right-angle inserts 44 , and the two right-angle inserts 44 are installed symmetrically along the gate sleeve 46 .

[0029] The rectangular hole 52 is formed directly below the right-angle plug plate 44 to facilitate the right-angle plug plate 44 to be inserted into the rectangular hole 52 . The through hole 53 is formed directly below the guide column 42 to facilitate the guide column 42 to be inserted into the through hole 53 .

[0030] The second embodiment, as Figure 1-Figure 7 As shown, based on the first embodiment: The gearbox housing casting device also includes: A fixed mold assembly 5, which is used to load a fixed mold and assist in casting. The fixed mold assembly 5 is installed in the middle of the top of the frame 1; The fixed die assembly 5 includes a lower die 51 and a connecting plate 55. The connecting plate 55 is installed at a corresponding position on the outer side of the lower die 51. The lower die 51 is installed directly below the upper die 41. The lower die 51 is fixedly installed at the middle of the top of the frame 1 through the connecting plate 55. A rectangular hole 52 is provided at the connection between the connecting plate 55 and the lower die 51. Through holes 53 are provided on the outer side of the connecting plate 55 and near both ends. Self-locking assemblies 54 are installed at corresponding positions on the bottom of the lower die 51. The position of the self-locking assemblies 54 corresponds to the position of the guide column 42. When the upper die 41 is driven to move downward by the output end of the hydraulic cylinder 3, the bottom end of the guide column 42 is inserted into the through hole 53. At the same time, the bottom end of the right-angle insert plate 44 is inserted into the rectangular hole 52. As the upper mold 41 continues to move downward, the guide column 42 and the right-angle insert plate 44 move downward together, thereby guiding the upper mold 41, so that the upper mold 41 moves downward smoothly, thereby facilitating the merging of the upper mold 41 and the lower mold 51, and completing the mold closing smoothly.

[0031] When the upper mold 41 and the lower mold 51 are closed, the guide column 42 is matched with the through hole 53, and the right-angle plug plate 44 is matched with the rectangular hole 52. At this time, the guide column 42 and the right-angle plug plate 44 are clamped with the lower mold 51 to achieve a clamping effect, so that the upper mold 41 is not easy to deviate and the influence of external force is reduced.

[0032] The self-locking assembly 54 includes a fixed base 541, which is fixedly installed with the bottom of the lower mold 51 by screws, and a strip guide rail 542 is fixedly installed at the side of the outer side of the fixed base 541, and a clamping block 543 is slidably installed inside the strip guide rail 542, and the clamping block 543 is installed at two symmetrical ends of the outer side of the strip guide rail 542, and an elastic reset strip 544 is fixedly installed on the outer side of the clamping block 543. When the guide column 42 is inserted into the through hole 53, the outer side of the guide column 42 is fitted with the end of the clamping block 543, so that the clamping block 543 is pushed inward, so that the symmetrical clamping blocks 543 on both sides move toward the inner direction of the strip guide rail 542, and the elastic reset strip 544 is compressed; As the horseshoe-shaped latch interface 43 moves downward to the position of the latch block 543 , and under the elastic force provided by the elastic reset strip 544 , the latch block 543 cooperates with the horseshoe-shaped latch interface 43 to complete the latching, thereby self-locking the guide column 42 .

[0033] The outer side of the clamping block 543 fits with the inner side of the strip guide rail 542, so that the clamping block 543 moves smoothly and is not easy to shake. The elastic reset strip 544 is wavy in shape, which is convenient for elastic deformation after being squeezed, and the elastic reset strip 544 is installed in the middle of the strip guide rail 542.

[0034] The third embodiment, as Figure 1-Figure 4 and Figure 8-Figure 11 As shown, based on the first and second embodiments: A casting sand processing mechanism 6 is installed on the side of the outer side of the frame 1. The casting sand processing mechanism 6 includes a shell 61. The edge of the outer side of the shell 61 is fixed to the outer side of the frame 1 by bolts. A frame 62 is fixedly installed in the middle of the inside of the shell 61. A sand filter net 68 is fixedly installed in the middle of the outside of the frame 62. An electric telescopic rod 63 is fixedly installed on the side of the outer side of the shell 61. The output end of the electric telescopic rod 63 extends to the inside of the shell 61. A sand rubbing component 64 is installed at the output end of the electric telescopic rod 63.

[0035] A top cover 65 is installed in the middle of the top of the shell 61, and a feed hopper 66 is installed at the side of the top of the shell 61. The position of the feed hopper 66 corresponds to the position of the top cover 65. A sand discharge port 67 is installed in the middle of the bottom of the shell 61. The staff puts the used casting sand into the feed hopper 66, and the casting sand falls by its own weight. When the casting sand falls on the sand filter net 68, the sand filter net 68 is installed at an angle so that the sand falling on the sand filter net 68 can roll down freely, so that the sand filter net 68 can filter the debris in the sand in time to reduce the mixing of debris in the sand.

[0036] The sand filtering net 68 is installed obliquely, and the electric telescopic rod 63 and the sand rubbing assembly 64 are installed at the same height.

[0037] The sand rubbing assembly 64 includes a rubbing plate 641 and a fork-shaped connecting slider 642. The side of the outer side of the rubbing plate 641 is fixedly installed with the output end of the electric telescopic rod 63. The rubbing plate 641 is installed at a position close to the sand filter 68. The fork-shaped connecting slider 642 is slidably installed at the outer side of the shell 61 and the outer side of the frame 1. A zigzag connecting rod 643 is fixedly installed in the middle of the top of the fork-shaped connecting slider 642. The bottom end of the zigzag connecting rod 643 is fixedly installed at the curved surface of the outer side of the rubbing plate 641. A supporting spring 644 is fixedly installed at one end of the zigzag connecting rod 643 away from the rubbing plate 641. A knocking rod 645 is fixedly installed at one end of the supporting spring 644 away from the zigzag connecting rod 643. A curved surface extending retaining edge 646 is fixedly installed at the edge of the top of the rubbing plate 641. The rubbing plate 641 is installed above the sand filter 68 to slow down the rolling speed of the molding sand at the top of the sand filter 68. At the same time, the staff turns on the electric telescopic rod 63 to work, and uses the extension and contraction of the output end of the electric telescopic rod 63 to drive the kneading plate 641 to move back and forth in a straight line. Through the reciprocating movement of the kneading plate 641, the molding sand above the sand filter net 68 can be kneaded, so that the sand clumps formed together can be crushed in time, and then the molding sand can be processed. Moreover, through the connection of the zigzag connecting rod 643, the fork-shaped connecting slider 642 can slide, so that the kneading plate 641 can move more steadily and smoothly.

[0038] When the zigzag connecting rod 643 moves back and forth, the elastic support of the supporting spring 644 can drive the knocking rod 645 to move back and forth, and the knocking rod 645 is installed directly below the semicircular groove 45, so that after the moving knocking rod 645 is separated from the semicircular groove 45, and under the elastic force of the supporting spring 644, the knocking rod 645 is reset in time, and then the bottom of the right-angle plug plate 44 is knocked, so that the right-angle plug plate 44 vibrates, thereby transmitting the vibration to the gate sleeve 46, thereby promoting the molten metal in the gate sleeve 46 to flow downward.

[0039] The kneading plate 641 is installed at an angle, and the kneading plate 641, the bending connecting rod 643, the supporting spring 644 and the knocking rod 645 are installed at the same height. When the vibration is transmitted to the gate sleeve 46, the molten metal is affected by the vibration and the bubbles wrapped in the molten metal can be discharged in time under the action of the vibration, thereby reducing the influence of the bubbles and ensuring high casting quality.

[0040] When in use, the staff first turns on the hydraulic cylinder 3 to work, and the upper die 41 can be driven to move downward by the extension of the output end of the hydraulic cylinder 3, so as to adjust the position of the upper die 41. When the upper die 41 is driven to move downward by the output end of the hydraulic cylinder 3, the bottom end of the guide column 42 is inserted into the through hole 53; The bottom end of the right-angle insert plate 44 is inserted into the rectangular hole 52. As the upper mold 41 continues to move downward, the guide column 42 and the right-angle insert plate 44 move downward together, thereby guiding the upper mold 41, so that the upper mold 41 moves downward smoothly, thereby facilitating the merging of the upper mold 41 and the lower mold 51, and completing the mold closing smoothly.

[0041] At the same time, when the upper mold 41 and the lower mold 51 are molded together, the guide pillar 42 is matched with the through hole 53, and the right-angle plug plate 44 is matched with the rectangular hole 52. At this time, the guide pillar 42 and the right-angle plug plate 44 are clamped with the lower mold 51 to achieve a clamping effect, so that the upper mold 41 is not easy to deviate and is less affected by external forces. When the guide post 42 is inserted into the through hole 53, the outer side of the guide post 42 is fitted with the end of the clamping block 543, so that the clamping block 543 is pushed inward, so that the clamping blocks 543 symmetrical on both sides move toward the inner direction of the strip guide rail 542, and the elastic reset strip 544 is compressed; As the horseshoe-shaped clamping interface 43 moves downward to the position of the clamping block 543, the clamping block 543 and the horseshoe-shaped clamping interface 43 are matched to complete the clamping under the elastic force provided by the elastic reset strip 544, thereby self-locking the guide column 42, and when the output end of the hydraulic cylinder 3 is extended, a downward pressing force can be applied to the upper mold 41, and at this time, the molten metal is injected from the sprue sleeve 46 for casting; At the same time, the staff turns on the electric telescopic rod 63 to work, and uses the extension and contraction of the output end of the electric telescopic rod 63 to drive the rubbing plate 641 to move back and forth in a straight line. At this time, the rubbing plate 641 will drive the zigzag connecting rod 643 to move back and forth, and the knocking rod 645 can be driven to move back and forth through the elastic support of the support spring 644. The knocking rod 645 is installed just below the semicircular groove 45, so that the moving knocking rod 645 is separated from the semicircular groove 45 and reset in time under the elastic force of the support spring 644, and then knocks the bottom of the right-angle plug plate 44, so that the right-angle plug plate 44 vibrates, thereby transmitting the vibration to the gate sleeve 46, promoting the metal melt in the gate sleeve 46 to flow downward; The staff puts the used foundry sand into the feed hopper 66, and the foundry sand falls by its own weight. When the foundry sand falls on the sand filter net 68, the sand filter net 68 is installed tilted so that the foundry sand falling on the sand filter net 68 can roll down freely, so that the sand filter net 68 can filter the debris in the foundry sand in time, reducing the debris mixed in the foundry sand. The sand above the sand filter net 68 can be kneaded through the reciprocating movement of the kneading plate 641, so that the sand clumps formed by the adhesion are kneaded in time, and then the foundry sand is processed. The fork-shaped connecting slider 642 can slide through the connection of the zigzag connecting rod 643, so that the movement of the kneading plate 641 is more stable and smooth. When the molding sand processing is completed, the top cover 65 can be opened to clean up the debris filtered by the sand filter 68 in time.

[0042] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A gearbox housing casting device, characterized in that: include: A frame (1), the frame (1) having a frame body with a supporting function, a supporting ceiling (2) being fixedly mounted on the top of the frame (1), a hydraulic cylinder (3) being fixedly mounted on the top of the supporting ceiling (2), two hydraulic cylinders (3) being symmetrically mounted along the middle of the supporting ceiling (2); A movable mold assembly (4), the movable mold assembly (4) is used to load the movable mold and perform mold closing, and the movable mold assembly (4) is installed at the output end of the hydraulic cylinder (3); The movable mold assembly (4) comprises an upper mold (41) and a sprue sleeve (46), the top of the upper mold (41) is fixedly mounted to the output end of the hydraulic cylinder (3), the sprue sleeve (46) is mounted in the middle of the top of the upper mold (41), a guide column (42) is fixedly mounted on the outer edge of the upper mold (41), a horseshoe-shaped clamping interface (43) is provided on the outer side of the guide column (42), the horseshoe-shaped clamping interface (43) is provided at a position close to the bottom end of the guide column (42), a right-angle plug plate (44) is fixedly mounted on the outer side of the sprue sleeve (46), and a semicircular groove (45) is provided at the bottom end of the right-angle plug plate (44); The gearbox housing casting device also includes: A fixed mold assembly (5), the fixed mold assembly (5) is used to load the fixed mold and assist in casting, and the fixed mold assembly (5) is installed in the middle of the top of the frame (1); The fixed mold assembly (5) comprises a lower mold (51) and a connecting plate (55), wherein the connecting plate (55) is installed at a corresponding position on the outer side of the lower mold (51), the lower mold (51) is installed directly below the upper mold (41), the lower mold (51) is fixedly installed at the middle of the top of the frame (1) through the connecting plate (55), a rectangular hole (52) is provided at the connection between the connecting plate (55) and the lower mold (51), through holes (53) are provided on the outer side of the connecting plate (55) and near both ends, and self-locking assemblies (54) are installed at corresponding positions on the bottom of the lower mold (51), and the position of the self-locking assembly (54) corresponds to the position of the guide column (42).

2. A gearbox housing casting device according to claim 1, characterized in that: The guide column (42) is installed vertically, and there are two right-angle plug plates (44), and the two right-angle plug plates (44) are installed symmetrically along the gate sleeve (46).

3. A gearbox housing casting device according to claim 1, characterized in that: The rectangular hole (52) is provided directly below the right-angle plug plate (44), and the through hole (53) is provided directly below the guide column (42).

4. A gearbox housing casting device according to claim 1, characterized in that: The self-locking component (54) comprises a fixed base (541), wherein the fixed base (541) is fixedly mounted to the bottom of the lower mold (51) by means of screws, a strip guide rail (542) is fixedly mounted on the side of the outer side of the fixed base (541), a clamping block (543) is slidably mounted inside the strip guide rail (542), and the clamping block (543) is mounted at two symmetrical ends of the outer side of the strip guide rail (542), and an elastic reset strip (544) is fixedly mounted on the outer side of the clamping block (543).

5. A gearbox housing casting device according to claim 4, characterized in that: The outer side of the clamping block (543) fits with the inner side of the strip guide rail (542); the elastic reset strip (544) is wavy in shape, and the elastic reset strip (544) is installed in the middle of the strip guide rail (542).

6. A gearbox housing casting device according to claim 1, characterized in that: A casting sand processing mechanism (6) is installed at the side of the outer side of the frame (1), and the casting sand processing mechanism (6) comprises a shell (61), the outer edge of the shell (61) is fixedly installed with the outer side of the frame (1) by bolts, a frame (62) is fixedly installed in the middle of the inner part of the shell (61), a sand filter net (68) is fixedly installed in the middle of the outer side of the frame (62), and an electric telescopic rod (63) is fixedly installed at the side of the outer side of the shell (61), the output end of the electric telescopic rod (63) extends to the inside of the shell (61), and a sand rubbing component (64) is installed at the output end of the electric telescopic rod (63).

7. A gearbox housing casting device according to claim 6, characterized in that: A top cover (65) is installed in the middle of the top of the shell (61), a feed hopper (66) is installed on the side of the top of the shell (61), the position of the feed hopper (66) corresponds to the position of the top cover (65), and a sand discharge port (67) is installed in the middle of the bottom of the shell (61).

8. The gearbox housing casting device according to claim 6, characterized in that: The sand filtering net (68) is installed at an angle, and the electric telescopic rod (63) and the sand rubbing assembly (64) are installed at the same height.

9. A gearbox housing casting device according to claim 6, characterized in that: The sand rubbing assembly (64) comprises a rubbing plate (641) and a fork-shaped connecting slider (642). The outer side of the rubbing plate (641) is fixedly mounted to the output end of the electric telescopic rod (63). The rubbing plate (641) is installed at a position close to the sand filter screen (68). The fork-shaped connecting slider (642) is slidably mounted at a position corresponding to the outer side of the housing (61) and the outer side of the frame (1). The middle of the top of the fork-shaped connecting slider (642) is fixedly mounted. A zigzag connecting rod (643) is installed, the bottom end of the zigzag connecting rod (643) is fixedly installed at the curved surface on the outer side of the rubbing plate (641), a support spring (644) is fixedly installed at one end of the zigzag connecting rod (643) away from the rubbing plate (641), a knocking rod (645) is fixedly installed at one end of the support spring (644) away from the zigzag connecting rod (643), and a curved surface extension rib (646) is fixedly installed at the edge of the top of the rubbing plate (641).

10. A gearbox housing casting device according to claim 9, characterized in that: The kneading plate (641) is installed at an angle, and the kneading plate (641), the zigzag connecting rod (643), the supporting spring (644) and the knocking rod (645) are installed at the same height.

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