CN117182024B

CN117182024B - Heavy hydraulic cylinder barrel centrifugal casting equipment

Info

Publication number: CN117182024B
Application number: CN202311004902.8A
Authority: CN
Inventors: 王阳; 程响; 张万山; 黄菊
Original assignee: Anhui Dehong Work Manufacture Co ltd
Current assignee: Anhui Dehong Work Manufacture Co ltd
Priority date: 2023-08-08
Filing date: 2023-08-08
Publication date: 2024-05-07
Anticipated expiration: 2043-08-08
Also published as: CN117182024A

Abstract

The invention belongs to the technical field of hydraulic cylinder production, in particular to heavy hydraulic cylinder barrel centrifugal casting equipment, which comprises a frame, a lifting piece, a grouting assembly and a die; according to the invention, the extrusion seat is co-extruded by the supporting wheel and the extrusion wheel, so that the extrusion surfaces of the two die shells are extruded together, at the moment, the extrusion wheel and the supporting wheel are arranged on a circle taking the center of the die shells as the center of the circle, so that the automatic positioning and compression of the die shells are realized, the error in manual positioning is reduced, the positioning precision is improved, the probability of dislocation on the surface of the cylinder barrel is reduced, the quality of the cylinder barrel is improved, the positioning and compression of the die shells are automatically completed, the positioning and compression time is saved, the die assembly time is saved, and the casting efficiency of the cylinder barrel is improved; when the mould shell moves upwards, the mould shell enables the cylinder barrel to generate upward acting force, so that the adhesion force between the cylinder barrel and the lower mould shell is reduced, the cylinder barrel is conveniently taken out from the lower mould shell, and the convenience of casting equipment is improved.

Description

Heavy hydraulic cylinder barrel centrifugal casting equipment

Technical Field

The invention belongs to the technical field of hydraulic cylinder production, and particularly relates to heavy-duty hydraulic cylinder barrel centrifugal casting equipment.

Background

The hydraulic cylinder is a power device for converting hydraulic energy into mechanical energy and realizing reciprocating linear motion or swinging motion, the hydraulic cylinder is simple in structure and high in reliability, the hydraulic cylinder comprises a cylinder barrel, a piston rod, a sealing device, a buffer device and the like, the quality of the cylinder barrel is particularly important, the cylinder barrel of the light hydraulic cylinder is generally made of tubular profiles, the cylinder barrel of the heavy hydraulic cylinder is generally formed into a blank body by adopting a casting method for improving the compression resistance, and the blank body of the cylinder body is processed into a finished product by tools such as turning, finish boring and the like.

The centrifugal casting machine that uses at present needs to use the manual work to carry out compound die and die sinking, needs the manual work to use the instrument to fix and separate two moulds, and compound die sinking inefficiency reduces the production efficiency of cylinder, and the precision of manual mode locking can't be guaranteed, increases the probability that mould seam department misplaced, makes the cylinder surface appear staggering, reduces cylinder surface quality.

Disclosure of Invention

In order to make up for the defects of the prior art, the invention provides heavy hydraulic cylinder barrel centrifugal casting equipment. The invention is mainly used for solving the problems that the die is required to be fixed and separated by using a tool manually in the centrifugal casting machine used at present, the die closing and opening efficiency is low, and the cylinder barrel production efficiency is reduced, the manual die closing precision cannot be ensured, the dislocation probability of the joint of the die is increased, and the cylinder barrel surface quality is reduced.

The technical scheme adopted for solving the technical problems is as follows: the invention provides heavy hydraulic cylinder barrel centrifugal casting equipment which comprises a frame, a lifting piece, a grouting assembly and a die, wherein the lifting piece is arranged on the frame; the lifting piece is arranged on the frame; the lifting piece is connected with the frame in a sliding way; the lifting piece slides up and down; the frame is provided with a power assembly; the power assembly is used for realizing up-and-down sliding of the lifting piece; the die is of a split type structure; the die comprises two die shells; one end of each mould shell, which is close to the other end of each mould shell, is provided with an extrusion surface; one of the extrusion surfaces is provided with a convex structure; the other extrusion surface is provided with a groove structure; two ends of the mould shell are symmetrically provided with extrusion seats; the extrusion seat is semicircular; the extrusion seat is fixedly connected with the mould shell; the frame is provided with a supporting component; the supporting components are arranged at intervals; the support assembly comprises a support frame and a support wheel; the support frame is fixedly connected with the frame; the supporting wheels are symmetrically arranged on the supporting frame; the supporting wheel is rotationally connected with the supporting frame; the two supporting components are provided with the mould shells; the supporting wheel is abutted against the outer surface of the extrusion seat; an extrusion assembly is arranged above the support assembly; the extrusion assembly comprises a connecting piece and an extrusion wheel; the connecting pieces are symmetrically arranged at two ends of the lifting piece; the connecting piece is fixedly connected with the lifting piece; the connecting piece is symmetrically provided with the extrusion wheels; the extrusion wheel is rotationally connected with the connecting piece; a grouting assembly is arranged on the frame; the grouting assembly is connected with the frame; the grouting assembly is used for grouting into the mould shell; a gear ring is arranged in the middle of the mould shell; the gear ring is of a semi-annular structure; the gear ring is fixedly connected with the mould shell; a first gear is arranged on the frame; the first gear is rotationally connected with the frame; a first motor is arranged on the frame; the first motor is fixedly connected with the frame; the rotating shaft of the first motor is fixedly connected with the first gear; a controller is arranged on the frame; the controller is fixedly connected with the rack; the first motor is communicated with the controller through an electric signal; the controller is connected with the power assembly.

When in operation, the lower mould shell is rotated to enable the extrusion surface of the lower mould shell to face upwards, the upper mould shell is placed on the lower mould shell to enable the two extrusion surfaces to be close to each other, the protruding structure is abutted against in the groove structure, then the power component is enabled to operate through the controller to drive the lifting part to move downwards, the connecting part and the extrusion wheel are enabled to move downwards, the extrusion wheel is enabled to abut against the extrusion seats at two ends of the upper mould shell to generate pressure on the extrusion seats, the pressure is transmitted to the mould shell, the upper mould shell is enabled to move downwards, the two extrusion surfaces are enabled to be close to each other, the two extrusion surfaces are enabled to be extruded together, then the power component is enabled to stop working through the controller, the two extrusion surfaces are enabled to be kept in an extrusion state, and then the mould assembly of the two mould shells is completed, after the power component stops working, the first motor is operated by the controller to drive the first gear to rotate, then the gear rings (after two extrusion surfaces are extruded together, the two gear rings form a complete circle and are meshed with the first gear) to rotate, then the mould shell is driven to rotate at high speed, meanwhile, slurry (raw materials used for casting the cylinder body) is injected into the mould shell through the grouting component, then the slurry is driven to rotate at high speed through the mould shell, then the slurry generates centrifugal force, then the slurry is uniformly distributed on the inner surface of the mould shell, thus the cylinder barrel is formed, then the first motor is stopped to rotate by the controller, then the mould shell is stopped to rotate, after the mould shell is stopped to rotate, the controller enables the power component to operate, then the lifting piece is driven to move upwards, then the connecting piece and the extrusion piece are driven to move upwards, the upper mould shell is moved away, and the cylinder barrel is taken out from the lower mould shell, thereby completing the casting of the cylinder barrel; the centrifugal casting machine used at present needs to manually carry out die assembly and die opening, needs to manually fix and separate two dies by using a tool, has low die assembly and die opening efficiency, reduces the production efficiency of a cylinder barrel, can not ensure the precision of manual die assembly, increases the dislocation probability of a joint of the dies, leads the surface of the cylinder barrel to be dislocated, reduces the surface quality of the cylinder barrel, and in the die assembly process, the casting equipment extrudes extrusion seats through the supporting wheel and the extrusion wheel together so as to extrude extrusion surfaces of the two die shells, and after the two extrusion surfaces are abutted together, the extrusion wheel and the supporting wheel are arranged on a circle taking the center of a die shell as the center of a circle, thereby realizing the automatic positioning and compaction of the die shells, further avoiding manual positioning, further reducing the error in manual positioning, further improving the positioning precision, further reducing the dislocation probability of joint of the two die shells, further reducing the probability of a dislocation table on the surface of the cylinder barrel, further improving the quality of the cylinder barrel, simultaneously automatically completing the positioning and compaction time of the die shells, further saving the time for positioning and compaction, further saving the production time (time and time for casting) of a die assembly, and further improving the efficiency of the cylinder barrel; when the upper mould shell moves upwards, the adhesive force between the mould shell and the cylinder barrel enables the cylinder barrel to generate upward acting force, so that the adhesive force between the cylinder barrel and the lower mould shell is reduced, the cylinder barrel is conveniently taken out from the lower mould shell, and convenience of casting equipment is improved.

Preferably, lifting pieces are symmetrically arranged at two ends of the lifting piece; one end of the lifting piece is connected with the lifting piece in a sliding way; the lower end of the lifting piece is provided with a lifting structure; a first electric cylinder is symmetrically arranged on the lifting piece; the first electric cylinder is fixedly connected with the lifting piece; the movable shaft of the first electric cylinder is fixedly connected with the lifting piece; extension pieces are symmetrically arranged at two ends of one of the mould shells; the extending piece is fixedly connected with the mould shell; the lower end of the extending piece is a plane; the upper end of the lifting structure is a plane; the first electric cylinder is communicated with the controller through an electric signal.

When the mould shell stops rotating, the mould shell provided with the extension piece is stopped on the mould shell (the mould shell can be automatically realized by controlling the rotation number of a first motor, the mould shell can also be manually realized by manually rotating the mould shell), the lower surface of the extension piece is parallel to the upper surface of the lifting structure, before the power assembly works, the first electric cylinder is enabled to work through the controller, the movable shaft of the first electric cylinder is further retracted, the lifting piece is further driven to move towards the mould shell, the lifting structure is further driven to move towards the extension piece, the lifting structure is further driven to move to the lower side of the extension piece, the upper surface of the lifting structure is further attached to the lower surface of the extension piece, then the power assembly is enabled to work through the controller, the lifting piece is further driven to move upwards while the lifting piece is further driven to move upwards, the upper mould shell is further driven to move upwards, the automatic dismantling of the upper mould shell is further completed, and the convenience of removing casting equipment is further improved; when the mould shell moves upwards, the upper surface of the lifting structure is attached to the lower surface of the extending piece, so that the mould shell is prevented from rotating, the mould shell is prevented from falling off the lifting piece when rotating, the mould shell is prevented from falling off and damaging the mould shell, the cylinder barrel and workers, and the reliability and the safety of casting equipment are improved.

Preferably, the grouting assembly comprises a connecting pipe, a grouting pipe, a frame, a second motor, rolling wheels and a guide rail; the guide rail is arranged on the frame; the guide rail is fixedly connected with the frame; rolling grooves are symmetrically formed in two sides of the guide rail; the rolling groove is arranged along the long side direction of the guide rail; the rolling wheels are arranged on the lower side of the frame; the rolling wheel is rotationally connected with the frame; the rolling wheel is arranged in the rolling groove; a rotating shaft is arranged on each of the two rolling wheels at one end of the frame; the axes of the two rotating shafts are on the same straight line; the rotating shaft is fixedly connected with the rolling wheel; the rotating shaft is rotationally connected with the frame; a driving shaft is arranged on the frame; the driving shaft is rotationally connected with the frame; the driving shaft and the rotating shaft are driven by a belt; the second motor is arranged on the frame; the second motor is fixedly connected with the frame; the rotating shaft of the second motor is in transmission with the driving shaft through a gear set; the second motor is communicated with the controller through an electric signal; the connecting pipe is arranged on the frame; one end of the connecting pipe is fixedly connected with the frame; one end of the connecting pipe is communicated with the grouting pump; the grouting pipe is arranged at the other end of the connecting pipe; the grouting pipe is fixedly connected with the connecting pipe; the grouting pipe is communicated with the connecting pipe.

After the die assembly of the upper die and the lower die is completed, a second motor is controlled to work through a controller, a driving shaft is driven to rotate through a first gear set, a rotating shaft is driven to rotate through a belt, a rolling wheel on the rotating shaft is driven to rotate, the rolling wheel is driven to roll in a rolling groove, the rolling wheel is driven to move, a frame is driven to move, a connecting pipe and a grouting pipe are driven to move towards the inside of the die, the grouting pipe is moved, the grouting pump is controlled to work by the controller, grouting is carried out towards the inside of the die through the connecting pipe and the grouting pipe, the grouting is carried out towards the inside of the die, the slurry is uniformly distributed in the die, the probability of excessive or insufficient local slurry of the die is reduced, the probability of excessive or insufficient local wall thickness of the cylinder is reduced, the difference between the maximum wall thickness and the minimum wall thickness is reduced, the machining quantity of turning or boring and other machining is reduced (in order to improve the quality of the inner wall of the cylinder, the thinnest part needs to be removed), the machining time of the turning or boring and other machining is shortened, the working time of the cylinder is further shortened, and the working efficiency is further improved; meanwhile, the probability that the minimum wall thickness causes the wall thickness of the cylinder barrel to be thinner is prevented, the wall thickness of the cylinder barrel is kept within a specified range, the quality of the cylinder barrel is further prevented from being reduced due to the thinner wall thickness, and the quality of the cylinder barrel is further improved.

Preferably, the connecting pipe is provided with two guide pieces; the guide pieces are arranged at intervals; the guide piece is fixedly connected with the connecting pipe; a connecting plate is arranged above the connecting pipe; fixing seats are symmetrically arranged at two ends of the connecting plate; the fixed seat is fixedly connected with the connecting plate; a sliding groove is formed in the fixed seat; the guide piece is arranged in the sliding groove; the two sides of the guide piece are abutted against the two sides of the sliding groove; an extrusion part and a connecting shaft are arranged below the connecting pipe; the extrusion part is of a cylindrical structure; the extruded piece is sleeved outside the connecting shaft; the extrusion piece is rotationally connected with the connecting shaft; two ends of the connecting shaft are respectively and rotatably connected with the two fixing seats; mounting seats are symmetrically arranged between the two guide pieces; the mounting seat is fixedly connected with the connecting pipe; connecting blocks are symmetrically arranged at two ends of the connecting plate; the connecting block is arranged between the mounting seat and the guide piece; the two sides of the connecting block are symmetrically provided with a first hinged plate; the middle part of the first hinge plate is hinged with the connecting block; a first idler wheel is arranged between the two first hinge plates; the first idler wheel is rotatably connected with the two first hinge plates; the first idler wheel is arranged at one end of the first hinge plate; the other end of the first hinge plate is hinged with the mounting seat; the first roller is abutted against the surface of the connecting plate; two sides of the connecting block are symmetrically provided with second hinge plates; the second hinge plate is arranged at two sides of the first hinge plate; the middle part of the second hinge plate is hinged with the connecting block; a second idler wheel is arranged between the two second hinge plates; the second idler wheel is rotatably connected with the two second hinge plates; the second idler wheel is arranged at one end of the second hinge plate; the other end of the second hinge plate is hinged with the connecting plate; the second idler wheel is abutted against the surface of the connecting pipe; the mounting seats are provided with a first sliding block; the first sliding block is in sliding connection with the mounting seat; a second electric cylinder is arranged on the first sliding block; the second electric cylinder is fixedly connected with the first sliding block; the movable shaft of the second electric cylinder is fixedly connected with the connecting block; and the second electric cylinder is communicated with the controller through an electric signal.

After the connecting pipe stops moving and grouting is completed, the rotating speed of a motor is reduced through the controller, the rotating speed of the formwork is further reduced, meanwhile, the second electric cylinder is enabled to work through the controller, the moving shaft of the second electric cylinder stretches out, the connecting block is driven to move towards the guide piece, the hinge point of the first hinge plate and the mounting seat rotates downwards, the hinge point of the second hinge plate and the connecting plate rotate upwards, the distance between the connecting plate and the connecting pipe is further reduced, the connecting plate moves downwards, the connecting shaft is further driven to move downwards, the extruding piece is further enabled to move towards the formwork, the extruding piece is further enabled to abut against the sizing agent, the sizing agent is extruded through the extruding piece when the formwork drives the sizing agent to rotate, the compactness of sizing agent is further improved, the probability of bubbles on the side wall of the cylinder barrel is further reduced, the compactness of the cylinder barrel is further improved, and the quality of the cylinder barrel is further improved.

Preferably, the frame is provided with a guide member; the guide piece is connected with the frame; the guide piece is provided with a round hole.

When the extrusion piece extrudes the thick liquids, the thick liquids produce reaction force to the extrusion piece, and the one end that the frame was kept away from to the extrusion piece does not have the confining force, and then make the extrusion piece keep away from the one end of frame upwards remove, and then make the extrusion piece produce the skew, and then reduce the extrusion piece and keep away from frame one end to the extrusion force of thick liquids, and then reduce the compactness of this department thick liquids, and then reduce the quality of this department cylinder, through setting up the guide piece, before the connecting pipe stops moving, the tip of connecting pipe inserts in the round hole, and then the lateral wall of round hole retrains the lateral wall of connecting pipe, and then prevent that the connecting pipe from producing the skew, and then prevent that the extrusion piece from producing the skew, and then make the distance between extrusion piece and the mould shell keep equal, and then guarantee the extrusion degree of extrusion piece tip to the thick liquids, and then guarantee the compactness of mould shell tip, and then improve the whole quality of cylinder.

Preferably, a fixed plate is arranged on the frame; the fixed plate is fixedly connected with the frame; a second sliding block is arranged on the fixed plate; one end of the second sliding block is in sliding connection with the fixed plate; the other end of the second sliding block is provided with the guide piece; the guide piece is fixedly connected with the second sliding block; a third electric cylinder is arranged on the fixed plate; the third electric cylinder is fixedly connected with the fixed plate; the movable shaft of the third electric cylinder is fixedly connected with the guide piece; the third electric cylinder is communicated with the controller through an electric signal; a first sensor is arranged at the end part of the connecting pipe; the sensor I is fixedly connected with the connecting pipe; the first sensor is a distance sensor; the first sensor is used for measuring the distance between the end part of the connecting pipe and the bottom surface of the round hole; a second sensor is arranged on the bottom surface of the round hole; the second sensor is fixedly connected with the guide piece; the second sensor is a height sensor; the second sensor is used for measuring the height difference between the first sensor and the center of the round hole; the second sensor is communicated with the controller through an electric signal; the sensor I is communicated with the controller through an electric signal.

Through setting up sensor No. one, and then sensor is measured the distance between connecting pipe tip and the round hole bottom surface, the record is as the distance value, and with the distance value transmission for the comparison unit, and then the comparison unit is to the distance value with the setting value, when the distance value is less than or equal to the setting value, produce and draw the signal transmission for the extraction unit, and then draw the distance of sensor and round hole center from sensor No. two (when the connecting pipe moves in to the mould shell, make No. three electric cylinders work through the controller, and then make No. two sliding blocks and guide the piece move downwards, and then make the round hole be less than the connecting pipe), record the difference in height and transmit the altitude car for the execution unit, and then the execution unit makes No. three electric cylinders work, and then make the movable shaft of No. three electric cylinders stretch out, and then drive No. two sliding blocks and guide the piece upwards to move certain distance (this distance is equal to or slightly more than the difference in height in the preceding place), and then make the height of round hole center equal to the connecting pipe tip, in-process of moving in the round hole, through the controller, when the position is right electric cylinders are just adjusted to the round hole center position, and guide the round hole tip is just equal to the round hole, and then the round hole can be moved by the round hole is adjusted, and the hole is just equal to the hole.

Preferably, a flexible piece is arranged on one side of the guide piece; the flexible piece is fixedly connected with the guide piece; the middle part of the flexible piece is provided with a guide surface.

Through setting up the guide surface at the middle part of flexible piece, and then the tip of connecting pipe is contradicted at first on the guide surface, and then the connecting pipe slowly removes on the guide surface, and then makes things convenient for the connecting pipe to remove in the round hole, and then improves the probability that the connecting pipe got into the round hole, and then improves the reliability of correcting piece work, and then realizes the reliable work of extrusion piece.

Preferably, one end of the lifting structure, which is close to the extending piece, is provided with a first slope structure; and a second slope structure is arranged at one end of the extending part, which is close to the lifting structure.

Because the mould shell has inertia, when the mould shell stops rotating, the position of the mould shell can not be accurately controlled, a tiny included angle can be generated between the extending part and the lifting structure, and then the probability that the end part of the lifting structure is propped against the end part of the extending part is increased, the probability that the end part of the lifting structure is propped against the end part of the extending part is reduced by arranging a first slope structure and a second slope structure, and then the probability that the end part of the lifting structure is propped against the end part of the extending part is improved, and then the probability that the lifting structure moves to the lower part of the extending part is improved, and then the working reliability of the lifting structure is improved, and then the reliability of casting equipment is improved.

The beneficial effects of the invention are as follows:

1. According to the invention, the extrusion seat is co-extruded by the supporting wheel and the extrusion wheel, so that the extrusion surfaces of the two die shells are extruded together, and after the two extrusion surfaces are abutted together, the extrusion wheel and the supporting wheel are arranged on a circle taking the center of the die shell as the center of a circle, so that the automatic positioning and compaction of the die shells are realized, the manual positioning are avoided, the error in the manual positioning is reduced, the positioning precision is improved, the probability of dislocation at the joint of the two die shells is reduced, the probability of dislocation on the surface of the cylinder barrel is reduced, the quality of the cylinder barrel is improved, the positioning and compaction of the die shells are automatically completed, the positioning and compaction time is saved, the die assembly time is saved, the production time of one cylinder barrel is saved, and the casting efficiency of the cylinder barrel is improved; when the upper mould shell moves upwards, the adhesive force between the mould shell and the cylinder barrel enables the cylinder barrel to generate upward acting force, so that the adhesive force between the cylinder barrel and the lower mould shell is reduced, the cylinder barrel is conveniently taken out from the lower mould shell, and convenience of casting equipment is improved.

2. According to the invention, when the formwork stops rotating, the formwork provided with the extending piece is stopped on the formwork, the lower surface of the extending piece is parallel to the upper surface of the lifting structure, before the power assembly works, the first electric cylinder works through the controller, the movable shaft of the first electric cylinder is retracted, the lifting piece is driven to move towards the formwork, the lifting structure is driven to move towards the extending piece, the lifting structure is driven to move below the extending piece, the upper surface of the lifting structure is attached to the lower surface of the extending piece, then the power assembly works through the controller, the lifting piece is driven to move upwards while the lifting piece moves upwards, the extending piece is driven to move upwards, the formwork is driven to move upwards, and the automatic dismantling of the formwork is completed, the convenience of removing the formwork is improved, and the convenience of casting equipment is improved; when the mould shell moves upwards, the upper surface of the lifting structure is attached to the lower surface of the extending piece, so that the mould shell is prevented from rotating, the mould shell is prevented from falling off the lifting piece when rotating, the mould shell is prevented from falling off and damaging the mould shell, the cylinder barrel and workers, and the reliability and the safety of casting equipment are improved.

3. According to the invention, after the die assembly of the upper die and the lower die is completed, the second motor is controlled to work through the controller, the driving shaft is driven to rotate through the first gear set, the rotating shaft is driven to rotate through the belt, the rolling wheel on the rotating shaft is driven to rotate, the rolling wheel is driven to roll in the rolling groove, the rolling wheel is driven to move, the frame is driven to move, the connecting pipe and the grouting pipe are driven to move towards the inside of the die, the grouting pipe is driven to move, the grouting pump is controlled to work through the connecting pipe and the grouting pipe, the grouting is driven to move towards the inside of the die, the slurry is uniformly distributed in the die, the probability of excessive or insufficient local slurry of the die is reduced, the probability of excessive or insufficient local wall thickness of the cylinder is reduced, the difference between the maximum wall thickness and the minimum wall thickness is reduced, the processing amount of turning or boring and the like is reduced, the processing time of the turning or boring and the like is shortened, the processing time of the cylinder is saved, and the working efficiency is improved; meanwhile, the probability that the minimum wall thickness causes the wall thickness of the cylinder barrel to be thinner is prevented, the wall thickness of the cylinder barrel is kept within a specified range, the quality of the cylinder barrel is further prevented from being reduced due to the thinner wall thickness, and the quality of the cylinder barrel is further improved.

4. According to the invention, after the connecting pipe stops moving and grouting is completed, the rotating speed of the first motor is reduced through the controller, so that the rotating speed of the formwork is reduced, meanwhile, the second electric cylinder is enabled to work through the controller, so that the moving shaft of the second electric cylinder extends out, the connecting block is driven to move towards the guide piece, the first hinge plate is enabled to rotate downwards around the hinge point of the mounting seat, the second hinge plate is enabled to rotate upwards around the hinge point of the connecting plate, the distance between the connecting plate and the connecting pipe is reduced, the connecting plate is enabled to move downwards, the connecting shaft and the extrusion piece are driven to move downwards, the extrusion piece is enabled to move towards the formwork, the extrusion piece is enabled to abut against the sizing agent, the sizing agent is extruded through the extrusion piece when the formwork drives the sizing agent to rotate, the compactness of sizing agent is improved, the probability of bubbles on the side wall of the cylinder is reduced, the compactness of the cylinder is improved, and the quality of the cylinder is improved.

5. According to the invention, when the extrusion piece extrudes the sizing agent, the sizing agent generates a reaction force on the extrusion piece, and the end, far away from the frame, of the extrusion piece is free of constraint force, so that the end, far away from the frame, of the extrusion piece moves upwards, the extrusion piece is deflected, the extrusion force, far away from the frame, of the extrusion piece, of the sizing agent is reduced, the compactness of the sizing agent at the position is reduced, the quality of a cylinder barrel at the position is reduced, before the connecting pipe stops moving, the end part of the connecting pipe is inserted into a round hole, the side wall of the round hole constrains the side wall of the connecting pipe, the deflection of the connecting pipe is prevented, the deflection of the extrusion piece is prevented, the distance between the extrusion piece and the die shell is kept equal, the extrusion degree of the end part of the extrusion piece to the sizing agent is guaranteed, the compactness of the end part of the die shell is guaranteed, and the whole quality of the cylinder barrel is improved.

Drawings

The invention is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of a casting apparatus of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a partial enlarged view at B in FIG. 1;

FIG. 4 is a schematic view of the structure of the mold according to the present invention;

FIG. 5 is a schematic view showing the internal structure of the mold according to the present invention;

FIG. 6 is an enlarged view of a portion of FIG. 5 at C;

FIG. 7 is a schematic illustration of an extrusion of the present invention extruding a slurry;

FIG. 8 is a schematic view of the construction of the formwork of the present invention;

FIG. 9 is a schematic view of the structure of the pressing surface in the present invention;

FIG. 10 is a schematic view of the structure of the guide member of the present invention;

FIG. 11 is a schematic view of a connecting tube according to the present invention;

FIG. 12 is a schematic view of the structure of the lifting member of the present invention;

FIG. 13 is a schematic view of the structure of the extension member of the present invention;

In the figure: frame 1, support assembly 11, support frame 111, support wheel 112, extrusion assembly 12, connection 121, extrusion wheel 122, gear 13, motor 14, controller 15, lifter 2, lifter 21, lifter 211, ramp structure 2111, cylinder 22, grouting assembly 3, connection tube 31, grouting tube 32, guide 311, frame 33, motor 34, roller 35, rotation shaft 351, guide rail 36, rolling groove 361, belt 37, drive shaft 38, mold 4, mold shell 41, extrusion face 411, protrusion structure 412, groove structure 413, protrusion 414, ramp structure 4141, extrusion seat 42, gear ring 43, power assembly 5, connection plate 61, fixing base 62, sliding groove 621, extrusion 63, connection shaft 64, mount 65, connection block 66, hinge plate 661, roller 662, hinge plate 663, roller 663, slide 67, cylinder 68, guide 71, round hole 711, fixing plate 72, slide 73, sensor 74, sensor 75, and sensor 664, and sensor 77.

Detailed Description

The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.

As shown in fig. 1, 3, 4, 5, 6,7, 8 and 9, a heavy hydraulic cylinder barrel centrifugal casting apparatus includes a frame 1, a lifting member 2, a grouting assembly 3 and a mold 4; the lifting piece 2 is arranged on the frame 1; the lifting piece 2 is connected with the frame 1 in a sliding way; the lifting piece 2 slides up and down; the frame 1 is provided with a power assembly 5; the power assembly 5 is used for realizing up-and-down sliding of the lifting piece 2; the die 4 is of a split type structure; the mould 4 comprises two mould shells 41; one end of each of the two mold shells 41, which is close to each other, is provided with a squeezing surface 411; one of the pressing surfaces 411 is provided with a protrusion structure 412; the other extrusion surface 411 is provided with a groove structure 413; two ends of the mould shell 41 are symmetrically provided with extrusion seats 42; the extrusion seat 42 is semicircular; the extrusion seat 42 is fixedly connected with the mould shell 41; the frame 1 is provided with a supporting component 11; the supporting components 11 are arranged at intervals; the support assembly 11 includes a support frame 111 and a support wheel 112; the support 111 is fixedly connected with the frame 1; the supporting wheels 112 are symmetrically arranged on the supporting frame 111; the supporting wheel 112 is rotatably connected with the supporting frame 111; the two supporting components 11 are provided with the mould shells 41; the supporting wheel 112 is abutted against the outer surface of the extrusion seat 42; an extrusion assembly 12 is arranged above the support assembly 11; the press assembly 12 includes a connector 121 and a press wheel 122; the connecting pieces 121 are symmetrically arranged at two ends of the lifting piece 2; the connecting piece 121 is fixedly connected with the lifting piece 2; the connecting piece 121 is symmetrically provided with the extrusion wheel 122; the extrusion wheel 122 is rotatably connected with the connecting piece 121; a grouting assembly 3 is arranged on the frame 1; the grouting assembly 3 is connected with the frame 1; the grouting assembly 3 is used for grouting into the mould shell 41; a gear ring 43 is arranged in the middle of the mould shell 41; the gear ring 43 has a semi-annular structure; the gear ring 43 is fixedly connected with the mould shell 41; a first gear 13 is arranged on the frame 1; the first gear 13 is rotationally connected with the frame 1; a first motor 14 is arranged on the frame 1; the first motor 14 is fixedly connected with the frame 1; the rotating shaft of the first motor 14 is fixedly connected with the first gear 13; a controller 15 is arranged on the frame 1; the controller 15 is fixedly connected with the frame 1; the motor number one 14 is communicated with the controller 15 through electric signals; the controller 15 is connected to the power assembly 5.

In operation, the lower die shell 41 is rotated to make the extrusion surface 411 of the lower die shell 41 upward, the upper die shell 41 is placed on the lower die shell 41, the two extrusion surfaces 411 are mutually close, the raised structure 412 is abutted against the groove structure 413, then the power component 5 is operated by the controller 15, the lifting component 2 is driven to move downward, the connecting piece 121 and the extrusion wheel 122 are driven to move downward, the extrusion wheel 122 is abutted against the extrusion seats 42 at two ends of the upper die shell 41, pressure is generated on the extrusion seats 42, the pressure is transmitted to the die shell 41, the upper die shell 41 is further moved downward, the two extrusion surfaces 411 are mutually close, the two extrusion surfaces 411 are extruded together, then the power component 5 is stopped by the controller 15, and the two extrusion surfaces 411 are kept in an extrusion state, after the power assembly 5 stops working, the first motor 14 is driven to work by the controller 15, the first gear 13 is driven to rotate, the gear ring 43 is driven (after the two extrusion surfaces 411 are extruded together, the two gear rings 43 form a complete circle and are meshed with the first gear 13) to rotate, the mold shell 41 is driven to rotate at a high speed, slurry (raw materials used by casting cylinder bodies) is injected into the mold shell 41 through the grouting assembly 3, the mold shell 41 is driven to rotate at a high speed, the slurry generates centrifugal force, the slurry is uniformly distributed on the inner surface of the mold shell 41, the cylinder barrel is formed, the first motor 14 is stopped to rotate by the controller 15, the mold shell 41 is stopped to rotate, the power assembly 5 is driven to work by the controller 15 after the mold shell 41 is stopped to rotate, the lifting piece 2 is driven to move upwards, the connecting piece 121 and the extrusion piece 63 are driven to move upwards, the upper die shell 41 is moved away, the cylinder barrel is taken out of the lower die shell 41, and the casting of the cylinder barrel is finished; the centrifugal casting machine used at present needs to manually perform die assembly and die opening, the two dies 4 are required to be fixed and separated by using a tool manually, die assembly and die opening efficiency is low, the production efficiency of the cylinder barrel is reduced, the precision of manual die assembly cannot be guaranteed, the dislocation probability of the joint of the dies 4 is increased, the surface quality of the cylinder barrel is reduced, the extrusion seat 42 is co-extruded through the supporting wheel 112 and the extrusion wheel 122 in the die assembly process of the casting equipment, the extrusion faces 411 of the two die shells 41 are extruded together, after the two extrusion faces 411 are abutted together, the extrusion wheel 122 and the supporting wheel 112 are arranged on a circle taking the center of the die shell 41 as the center of a circle, the automatic positioning of the die shells 41 is realized, the automatic positioning and the compaction of the die shells 41 are realized, the manual positioning is avoided, the error in the manual positioning is further reduced, the positioning precision is further improved, the dislocation probability of the joint of the two die shells 41 is further reduced, the surface dislocation probability of the cylinder barrel is further improved, the positioning and the casting of the die assembly 41 are automatically completed, the positioning and the time of the die assembly is further saved, the time is further saved, the production efficiency is further improved, and the cylinder barrel preparation time is further improved; when the upper mould shell 41 moves upwards, the adhesive force between the mould shell 41 and the cylinder barrel enables the cylinder barrel to generate upward acting force, so that the adhesive force between the cylinder barrel and the lower mould shell 41 is reduced, the cylinder barrel is conveniently taken out from the lower mould shell 41, and convenience of casting equipment is improved.

As shown in fig. 1,3, 4,5, 6, 7, 8, 9, 12 and 13, lifting pieces 21 are symmetrically arranged at two ends of the lifting piece 2; one end of the lifting piece 21 is connected with the lifting piece 2 in a sliding way; a lifting structure 211 is arranged at the lower end of the lifting piece 21; a first electric cylinder 22 is symmetrically arranged on the lifting piece 2; the first electric cylinder 22 is fixedly connected with the lifting piece 2; the moving shaft of the first electric cylinder 22 is fixedly connected with the lifting piece 21; extension pieces 414 are symmetrically arranged at two ends of one of the mould shells 41; the extension piece 414 is fixedly connected with the mould shell 41; the lower end of the protruding piece 414 is a plane; the upper end of the lifting structure 211 is a plane; the first electric cylinder 22 is in electrical communication with the controller 15.

When the die shell 41 stops rotating, the die shell 41 provided with the extending piece 414 is stopped on the die shell 41 (the automatic realization of the number of rotation turns of the first motor 14 can be controlled, the manual realization can be realized by manually rotating the die shell 41, the lower surface of the extending piece 414 is parallel to the upper surface of the lifting structure 211, before the power assembly 5 works, the first electric cylinder 22 works through the controller 15, the moving shaft of the first electric cylinder 22 is retracted, the lifting piece 21 is driven to move towards the die shell 41, the lifting structure 211 is driven to move towards the extending piece 414, the lifting structure 211 is driven to move below the extending piece 414, the upper surface of the lifting structure 211 is attached to the lower surface of the extending piece 414, then the power assembly 5 works through the controller 15, the lifting piece 21 is driven to move upwards while the lifting piece 2 moves upwards, the extending piece 414 is driven to move upwards, the upper die shell 41 is driven to move upwards, the automatic dismounting of the upper die shell 41 is completed, and the convenience of the casting equipment is improved; when the formwork 41 moves upwards, the upper surface of the lifting structure 211 is attached to the lower surface of the extending piece 414, so that the formwork 41 is prevented from rotating, the formwork 41 is prevented from falling from the lifting piece 21 when rotating, the formwork 41 is prevented from falling and damaging the formwork 41, the cylinder barrel and staff, and the reliability and the safety of casting equipment are improved.

As shown in fig. 1,2,3, 4,5, 6, 7 and 11, the grouting assembly 3 includes a connection pipe 31, a grouting pipe 32, a frame 33, a motor No. two 34, rolling wheels 35 and a guide rail 36; the frame 1 is provided with the guide rail 36; the guide rail 36 is fixedly connected with the frame 1; rolling grooves 361 are symmetrically formed on two sides of the guide rail 36; the rolling groove 361 is arranged along the long side direction of the guide rail 36; the rolling wheel 35 is arranged on the lower side of the frame 33; the rolling wheel 35 is rotatably connected with the frame 33; the rolling wheel 35 is arranged in the rolling groove 361; a rotating shaft 351 is arranged on each of the two rolling wheels 35 at one end of the frame 33; the axes of the two rotating shafts 351 are on the same straight line; the rotating shaft 351 is fixedly connected with the rolling wheel 35; the rotating shaft 351 is rotatably connected with the frame 33; the frame 33 is provided with a driving shaft 38; the drive shaft 38 is rotatably connected with the frame 33; the driving shaft 38 and the rotating shaft 351 are transmitted through a belt 37; the second motor 34 is arranged on the frame 33; the second motor 34 is fixedly connected with the frame 33; the rotation shaft of the second motor 34 is in transmission with the driving shaft 38 through a gear set; the second motor 34 is communicated with the controller 15 through an electric signal; the connecting pipe 31 is arranged on the frame 33; one end of the connecting pipe 31 is fixedly connected with the frame 33; one end of the connecting pipe 31 is communicated with a grouting pump; the other end of the connecting pipe 31 is provided with the grouting pipe 32; the grouting pipe 32 is fixedly connected with the connecting pipe 31; the grouting pipe 32 communicates with the connection pipe 31.

After the die assembly of the upper die shell 41 and the lower die shell 41 is completed, the controller 15 controls the second motor 34 to work, the first gear 13 drives the driving shaft 38 to rotate, the belt 37 drives the rotating shaft 351 to rotate, the rolling wheel 35 on the rotating shaft 351 is driven to rotate, the rolling wheel 35 is driven to roll in the rolling groove 361, the rolling wheel 35 is driven to move, the frame 33 is driven to move, the connecting pipe 31 and the grouting pipe 32 are driven to move towards the inside of the die shell 41, the grouting pipe 32 moves, the controller 15 controls the grouting pump to work, grouting is carried out towards the inside of the die shell 41 through the connecting pipe 31 and the grouting pipe 32, the grouting is carried out towards the inside of the die shell 41, the slurry is uniformly distributed in the die shell 41, the probability of excessive or insufficient local slurry of the die shell 41 is reduced, the probability of excessive or excessively thin local wall thickness of the cylinder barrel is reduced, the difference between the maximum wall thickness and the minimum wall thickness is reduced, the machining amount of the cylinder barrel (in order to improve the quality of the inner wall of the cylinder barrel, the thinnest part needs to be removed) is reduced, the machining time of turning or boring, the like is shortened, the machining efficiency of the cylinder barrel is further shortened, and the working efficiency is further improved; meanwhile, the probability that the minimum wall thickness causes the wall thickness of the cylinder barrel to be thinner is prevented, the wall thickness of the cylinder barrel is kept within a specified range, the quality of the cylinder barrel is further prevented from being reduced due to the thinner wall thickness, and the quality of the cylinder barrel is further improved.

As shown in fig. 1,2, 4, 5, 6, 7 and 11, two guiding pieces 311 are provided on the connection pipe 31; the guide pieces 311 are arranged at intervals; the guide piece 311 is fixedly connected with the connecting pipe 31; a connecting plate 61 is arranged above the connecting pipe 31; two ends of the connecting plate 61 are symmetrically provided with fixing seats 62; the fixed seat 62 is fixedly connected with the connecting plate 61; a sliding groove 621 is arranged in the fixed seat 62; the guide 311 is provided in the slide groove 621; both sides of the guide 311 are abutted against both sides of the sliding groove 621; an extrusion 63 and a connecting shaft 64 are arranged below the connecting pipe 31; the extrusion 63 is of a cylindrical structure; the extrusion 63 is sleeved outside the connecting shaft 64; the pressing piece 63 is rotatably connected with the connecting shaft 64; two ends of the connecting shaft 64 are respectively and rotatably connected with the two fixing seats 62; mounting seats 65 are symmetrically arranged between the two guide pieces 311; the mounting seat 65 is fixedly connected with the connecting pipe 31; connecting blocks 66 are symmetrically arranged at two ends of the connecting plate 61; the connection block 66 is disposed between the mount 65 and the guide 311; a first hinged plate 661 is symmetrically arranged on two sides of the connecting block 66; the middle part of the first hinge plate 661 is hinged with the connecting block 66; a first roller 662 is arranged between the first hinge plates 661; the first roller 662 is rotatably connected to two first hinge plates 661; the roller 662 is disposed at one end of the hinge plate 661; the other end of the first hinge plate 661 is hinged with the mounting seat 65; the roller 662 No. one abuts against the surface of the connection plate 61; two sides of the connecting block 66 are symmetrically provided with a second hinge plate 663; the second hinge plate 663 is disposed at two sides of the first hinge plate 661; the middle part of the second hinge plate 663 is hinged with the connecting block 66; a second idler wheel 664 is arranged between the two second hinge plates 663; the second idler wheel 664 is rotatably connected with the two second hinge plates 663; the roller 664 is arranged at one end of the hinge plate 663; the other end of the second hinge plate 663 is hinged with the connecting plate 61; the second roller 664 is abutted against the surface of the connecting pipe 31; the mounting seats 65 are provided with a first sliding block 67; the first sliding block 67 is slidably connected with the mounting seat 65; a second electric cylinder 68 is arranged on the first sliding block 67; the second electric cylinder 68 is fixedly connected with the first sliding block 67; the moving shaft of the second electric cylinder 68 is fixedly connected with the connecting block 66; the second electric cylinder 68 is in electrical communication with the controller 15.

After the connecting pipe 31 stops moving and grouting is completed, the rotating speed of the first motor 14 is reduced through the controller 15, the rotating speed of the die shell 41 is further reduced, meanwhile, the second electric cylinder 68 is enabled to work through the controller 15, the moving shaft of the second electric cylinder 68 is enabled to extend out, the connecting block 66 is further driven to move towards the guide piece 311, the first hinge plate 661 is enabled to rotate downwards around the hinge point of the mounting seat 65, the second hinge plate 663 is enabled to rotate upwards around the hinge point of the connecting plate 61, the distance between the connecting plate 61 and the connecting pipe 31 is further reduced, the connecting plate 61 is further enabled to move downwards, the connecting shaft 64 and the extrusion piece 63 are further driven to move downwards, the extrusion piece 63 is enabled to move towards the die shell 41, the extrusion piece 63 is enabled to abut against the slurry, the extrusion piece 63 is enabled to extrude the slurry when the die shell 41 drives the slurry to rotate, the compactness of the slurry is further improved, the probability of bubbles on the side wall of the cylinder barrel is further reduced, the compactness of the cylinder barrel is further improved, and the quality of the cylinder barrel is further improved.

As shown in fig. 1,3, 4, 5, 6 and 10, the frame 1 is provided with a guide member 71; the guide piece 71 is connected with the frame 1; the guide 71 is provided with a circular hole 711.

When the extrusion 63 extrudes slurry, the slurry produces reaction force to the extrusion 63, and the extrusion 63 is far away from one end of the frame 33 and has no constraint force, and then one end of the extrusion 63 far away from the frame 33 moves upwards, and then the extrusion 63 is deflected, and then the extrusion force of the extrusion 63 to the slurry at one end far away from the frame 33 is reduced, and then the compactness of the slurry at the position is reduced, and then the quality of the cylinder barrel is reduced, and by arranging the guide piece 71, before the connecting pipe 31 stops moving, the end part of the connecting pipe 31 is inserted into the round hole 711, and then the side wall of the round hole 711 restrains the side wall of the connecting pipe 31, and then the connecting pipe 31 is prevented from deflecting, and then the extrusion 63 is prevented from deflecting, and then the distance between the extrusion 63 and the mould shell 41 is kept equal, and then the extrusion degree of the extrusion 63 end part to the slurry is guaranteed, and then the compactness of the mould shell 41 end part is guaranteed, and the whole quality of the cylinder barrel is further improved.

As shown in fig. 1, 3, 4, 5 and 6, the frame 1 is provided with a fixing plate 72; the fixed plate 72 is fixedly connected with the frame 1; the fixed plate 72 is provided with a second sliding block 73; one end of the second sliding block 73 is slidably connected to the fixing plate 72; the other end of the second sliding block 73 is provided with the guide 71; the guide piece 71 is fixedly connected with the second sliding block 73; a third electric cylinder 74 is arranged on the fixed plate 72; the third electric cylinder 74 is fixedly connected with the fixed plate 72; the moving shaft of the third electric cylinder 74 is fixedly connected with the guide 71; the third electric cylinder 74 is communicated with the controller 15 through electric signals; a first sensor 75 is arranged at the end part of the connecting pipe 31; the sensor 75 is fixedly connected with the connecting pipe 31; the sensor 75 is a distance sensor; the sensor 75 is used for measuring the distance between the end of the connecting pipe 31 and the bottom surface of the round hole 711; a second sensor 76 is arranged on the bottom surface of the round hole 711; the second sensor 76 is fixedly connected with the guide 71; the sensor number two 76 is a height sensor; the second sensor 76 is configured to measure a height difference between the first sensor 75 and the center of the circular hole 711; the second sensor 76 is in electrical communication with the controller 15; the sensor number one 75 is in electrical communication with the controller 15.

Through setting up sensor 75, and then sensor 75 is measured the distance between connecting pipe 31 tip and the round hole 711 bottom surface, record as the distance value, and pass the distance value to the comparison unit, and then the comparison unit compares distance value and setting value, when the distance value is less than or equal to the setting value, produce and draw the signal and pass the extraction unit, and then the extraction unit draws the distance of sensor 75 and round hole 711 center from sensor 76 No. two (when connecting pipe 31 moves into in the mould shell 41, make No. three electric cylinder 74 work through controller 15, and then make No. two slider 73 and guide 71 move down, and then make round hole 711 be less than connecting pipe 31), record as the difference in height and transmit the altitude car to the execution unit, and then the execution unit makes No. three electric cylinder 74 work, and then make No. three electric cylinder 74's movable shaft stretch out, and then drive No. two slider 73 and guide 71 upwards move certain distance (this distance is equal to or slightly more than the difference in height in the preceding, and then make the altitude of round hole center and the guide 31 tip 31 move down, and then make the guide 31 tip 31 move into the round hole 711, and then the inside the hole 711 is equal to the hole 711, and then make the hole 711 moves the hole 711, and so on, and then the high probability is adjusted in the hole 711, and so on, and then the hole 711 moves the hole 31 moves down.

As shown in fig. 1,3, 5, 6 and 10, a flexible member 77 is disposed on one side of the guide member 71; the flexible piece 77 is fixedly connected with the guide piece 71; the middle part of the flexible piece 77 is provided with a guide surface 771.

Through setting up guide surface 771 at the middle part of flexonics spare 77, and then the tip of connecting pipe 31 is at first contradicted on guide surface 771, and then the slow removal of connecting pipe 31 on guide surface 771, and then make things convenient for connecting pipe 31 to remove in to round hole 711, and then improve the probability that connecting pipe 31 got into round hole 711, and then improve the reliability of guide 71 work, and then realize the reliable work of extrusion 63.

As shown in fig. 5, 6, 12 and 13, a first slope structure 2111 is provided at an end of the lifting structure 211 near the protruding member 414; the end of the extension piece 414 near the lifting structure 211 is provided with a second slope structure 4141.

Because the die shell 41 has inertia, when the die shell 41 stops rotating, the position of the die shell 41 cannot be accurately controlled, a tiny included angle is formed between the extending piece 414 and the lifting structure 211, the probability that the end part of the lifting structure 211 is propped against the end part of the extending piece 414 is increased, the probability that the end part of the lifting structure 211 is propped against the end part of the extending piece 414 is reduced by arranging the first slope structure 2111 and the second slope structure 4141, the probability that the end part of the lifting structure 211 is propped against the end part of the extending piece 414 is further improved, the probability that the lifting structure 211 moves to the lower part of the extending piece 414 is further improved, the working reliability of the lifting structure 211 is further improved, and the reliability of casting equipment is further improved.

In operation, the lower die shell 41 is rotated to make the extrusion surface 411 of the lower die shell 41 upward, the upper die shell 41 is placed on the lower die shell 41, the two extrusion surfaces 411 are mutually close, the raised structure 412 is abutted against the groove structure 413, then the power component 5 is operated by the controller 15, the lifting component 2 is driven to move downward, the connecting piece 121 and the extrusion wheel 122 are driven to move downward, the extrusion wheel 122 is abutted against the extrusion seats 42 at two ends of the upper die shell 41, pressure is generated on the extrusion seats 42, the pressure is transmitted to the die shell 41, the upper die shell 41 is further moved downward, the two extrusion surfaces 411 are mutually close, the two extrusion surfaces 411 are extruded together, then the power component 5 is stopped by the controller 15, and the two extrusion surfaces 411 are kept in an extrusion state, after the power component 5 stops working, the first motor 14 is driven to work by the controller 15, the first gear 13 is driven to rotate, the gear ring 43 is driven to rotate, the die shell 41 is driven to rotate at high speed, slurry is injected into the die shell 41 through the grouting component 3, the slurry is driven to rotate at high speed by the die shell 41, centrifugal force is generated by the slurry, the slurry is uniformly distributed on the inner surface of the die shell 41, the cylinder barrel is formed, the first motor 14 is stopped rotating by the controller 15, the die shell 41 is stopped rotating, the power component 5 is driven to work by the controller 15 after the die shell 41 stops rotating, the lifting piece 2 is driven to move upwards, the connecting piece 121 and the extrusion piece 63 are driven to move upwards, the upper die shell 41 is removed, the cylinder barrel is taken out of the lower die shell 41, thereby completing the casting of the cylinder barrel; the centrifugal casting machine used at present needs to manually perform die assembly and die opening, the two dies 4 are required to be fixed and separated by using a tool manually, die assembly and die opening efficiency is low, the production efficiency of the cylinder barrel is reduced, the precision of manual die assembly cannot be guaranteed, the dislocation probability of the joint of the dies 4 is increased, the surface quality of the cylinder barrel is reduced, the extrusion seat 42 is co-extruded through the supporting wheel 112 and the extrusion wheel 122 in the die assembly process of the casting equipment, the extrusion faces 411 of the two die shells 41 are extruded together, after the two extrusion faces 411 are abutted together, the extrusion wheel 122 and the supporting wheel 112 are arranged on a circle taking the center of the die shell 41 as the center of a circle, the automatic positioning of the die shells 41 is realized, the automatic positioning and the compaction of the die shells 41 are realized, the manual positioning is avoided, the error in the manual positioning is further reduced, the positioning precision is further improved, the dislocation probability of the joint of the two die shells 41 is further reduced, the surface dislocation probability of the cylinder barrel is further improved, the positioning and the automatic die assembly of the die assembly 41 is further completed, the positioning and the time of the die assembly is further saved, the time is further saved, the production efficiency of the cylinder barrel is further improved; when the upper mould shell 41 moves upwards, the adhesive force between the mould shell 41 and the cylinder barrel enables the cylinder barrel to generate upward acting force, so that the adhesive force between the cylinder barrel and the lower mould shell 41 is reduced, the cylinder barrel is conveniently taken out from the lower mould shell 41, and convenience of casting equipment is improved.

The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.

Claims

1. A heavy hydraulic cylinder barrel centrifugal casting device is characterized in that: comprises a frame (1), a lifting piece (2), a grouting component (3) and a die (4); the lifting piece (2) is arranged on the frame (1); the lifting piece (2) is connected with the frame (1) in a sliding way; the lifting piece (2) slides up and down; the frame (1) is provided with a power assembly (5); the power assembly (5) is used for realizing up-and-down sliding of the lifting piece (2); the die (4) is of a split type structure; the mould (4) comprises two mould shells (41); one end of each of the two mould shells (41) close to each other is provided with an extrusion surface (411); one of the extrusion surfaces (411) is provided with a convex structure (412); the other extrusion surface (411) is provided with a groove structure (413); two ends of the mould shell (41) are symmetrically provided with extrusion seats (42); the extrusion seat (42) is semicircular; the extrusion seat (42) is fixedly connected with the mould shell (41); a support component (11) is arranged on the frame (1); the supporting components (11) are arranged at intervals; the support assembly (11) comprises a support frame (111) and a support wheel (112); the supporting frame (111) is fixedly connected with the frame (1); the supporting wheels (112) are symmetrically arranged on the supporting frame (111); the supporting wheel (112) is rotationally connected with the supporting frame (111); the two supporting components (11) are provided with the mould shell (41); the supporting wheel (112) is abutted against the outer surface of the extrusion seat (42); an extrusion assembly (12) is arranged above the supporting assembly (11); the press assembly (12) comprises a connection (121) and a press wheel (122); the connecting pieces (121) are symmetrically arranged at two ends of the lifting piece (2); the connecting piece (121) is fixedly connected with the lifting piece (2); the connecting piece (121) is symmetrically provided with the extrusion wheel (122); the extrusion wheel (122) is rotationally connected with the connecting piece (121); a grouting assembly (3) is arranged on the frame (1); the grouting assembly (3) is connected with the frame (1); the grouting assembly (3) is used for grouting into the mould shell (41); a gear ring (43) is arranged in the middle of the mould shell (41); the gear ring (43) is of a semi-annular structure; the gear ring (43) is fixedly connected with the mould shell (41); a first gear (13) is arranged on the frame (1); the first gear (13) is rotationally connected with the frame (1); a first motor (14) is arranged on the frame (1); the first motor (14) is fixedly connected with the frame (1); the rotating shaft of the first motor (14) is fixedly connected with the first gear (13); a controller (15) is arranged on the frame (1); the controller (15) is fixedly connected with the frame (1); the first motor (14) is communicated with the controller (15) through an electric signal; the controller (15) is connected with the power assembly (5).

2. A heavy duty hydraulic cylinder barrel centrifugal casting apparatus according to claim 1, wherein: lifting pieces (21) are symmetrically arranged at two ends of the lifting piece (2); one end of the lifting piece (21) is connected with the lifting piece (2) in a sliding way; a lifting structure (211) is arranged at the lower end of the lifting piece (21); a first electric cylinder (22) is symmetrically arranged on the lifting piece (2); the first electric cylinder (22) is fixedly connected with the lifting piece (2); the movable shaft of the first electric cylinder (22) is fixedly connected with the lifting piece (21); two ends of one of the mould shells (41) are symmetrically provided with extension pieces (414); the extension piece (414) is fixedly connected with the mould shell (41); the lower end of the extending piece (414) is a plane; the upper end of the lifting structure (211) is a plane; the first electric cylinder (22) is communicated with the controller (15) through an electric signal.

3. A heavy duty hydraulic cylinder barrel centrifugal casting apparatus according to claim 2, wherein: the grouting assembly (3) comprises a connecting pipe (31), a grouting pipe (32), a frame (33), a second motor (34), rolling wheels (35) and a guide rail (36); the frame (1) is provided with the guide rail (36); the guide rail (36) is fixedly connected with the frame (1); rolling grooves (361) are symmetrically formed in two sides of the guide rail (36); the rolling groove (361) is arranged along the long side direction of the guide rail (36); the rolling wheel (35) is arranged on the lower side of the frame (33); the rolling wheel (35) is rotationally connected with the frame (33); the rolling wheel (35) is arranged in the rolling groove (361); a rotating shaft (351) is arranged on each of the two rolling wheels (35) at one end of the frame (33); the axes of the two rotating shafts (351) are on the same straight line; the rotating shaft (351) is fixedly connected with the rolling wheel (35); the rotating shaft (351) is rotationally connected with the frame (33); a driving shaft (38) is arranged on the frame (33); the driving shaft (38) is rotationally connected with the frame (33); the driving shaft (38) and the rotating shaft (351) are transmitted through a belt (37); the second motor (34) is arranged on the frame (33); the second motor (34) is fixedly connected with the frame (33); the rotating shaft of the second motor (34) is in transmission with the driving shaft (38) through a gear set; the second motor (34) is communicated with the controller (15) through an electric signal; the connecting pipe (31) is arranged on the frame (33); one end of the connecting pipe (31) is fixedly connected with the frame (33); one end of the connecting pipe (31) is communicated with the grouting pump; the other end of the connecting pipe (31) is provided with the grouting pipe (32); the grouting pipe (32) is fixedly connected with the connecting pipe (31); the grouting pipe (32) is communicated with the connecting pipe (31).

4. A heavy duty hydraulic cylinder barrel centrifugal casting apparatus according to claim 3, wherein: two guide pieces (311) are arranged on the connecting pipe (31); the guide pieces (311) are arranged at intervals; the guide piece (311) is fixedly connected with the connecting pipe (31); a connecting plate (61) is arranged above the connecting pipe (31); two ends of the connecting plate (61) are symmetrically provided with fixing seats (62); the fixing seat (62) is fixedly connected with the connecting plate (61); a sliding groove (621) is formed in the fixed seat (62); the guide piece (311) is arranged in the sliding groove (621); both sides of the guide piece (311) are abutted against both sides of the sliding groove (621); an extrusion part (63) and a connecting shaft (64) are arranged below the connecting pipe (31); the extrusion part (63) is of a cylindrical structure; the extruded piece (63) is sleeved outside the connecting shaft (64); the extrusion piece (63) is rotationally connected with the connecting shaft (64); two ends of the connecting shaft (64) are respectively and rotatably connected with the two fixing seats (62); mounting seats (65) are symmetrically arranged between the two guide pieces (311); the mounting seat (65) is fixedly connected with the connecting pipe (31); connecting blocks (66) are symmetrically arranged at two ends of the connecting plate (61); the connecting block (66) is arranged between the mounting seat (65) and the guide piece (311); the two sides of the connecting block (66) are symmetrically provided with a first hinged plate (661); the middle part of the first hinge plate (661) is hinged with the connecting block (66); a first idler wheel (662) is arranged between the two first hinged plates (661); the first roller (662) is rotatably connected with the two first hinge plates (661); the first roller (662) is arranged at one end of the first hinge plate (661); the other end of the first hinge plate (661) is hinged with the mounting seat (65); the first roller (662) is abutted against the surface of the connecting plate (61); two sides of the connecting block (66) are symmetrically provided with second hinge plates (663); the second hinge plate (663) is arranged at two sides of the first hinge plate (661); the middle part of the second hinge plate (663) is hinged with the connecting block (66); a second idler wheel (664) is arranged between the two second hinge plates (663); the second idler wheel (664) is rotatably connected with the two second hinge plates (663); the second idler wheel (664) is arranged at one end of the second hinge plate (663); the other end of the second hinge plate (663) is hinged with the connecting plate (61); the second roller (664) is abutted against the surface of the connecting pipe (31); a first sliding block (67) is arranged on each mounting seat (65); the first sliding block (67) is in sliding connection with the mounting seat (65); a second electric cylinder (68) is arranged on the first sliding block (67); the second electric cylinder (68) is fixedly connected with the first sliding block (67); the movable shaft of the second electric cylinder (68) is fixedly connected with the connecting block (66); and the second electric cylinder (68) is communicated with the controller (15) through an electric signal.

5. The heavy duty hydraulic cylinder barrel centrifugal casting apparatus according to claim 4, wherein: a guide piece (71) is arranged on the frame (1); the guide piece (71) is connected with the frame (1); a round hole (711) is formed in the guide member (71).

6. The heavy duty hydraulic cylinder barrel centrifugal casting apparatus according to claim 5, wherein: a fixed plate (72) is arranged on the frame (1); the fixed plate (72) is fixedly connected with the frame (1); a second sliding block (73) is arranged on the fixed plate (72); one end of the second sliding block (73) is in sliding connection with the fixed plate (72); the other end of the second sliding block (73) is provided with the guide piece (71); the guide piece (71) is fixedly connected with the second sliding block (73); a third electric cylinder (74) is arranged on the fixed plate (72); the third electric cylinder (74) is fixedly connected with the fixed plate (72); the moving shaft of the third electric cylinder (74) is fixedly connected with the guide piece (71); the third electric cylinder (74) is communicated with the controller (15) through an electric signal; a first sensor (75) is arranged at the end part of the connecting pipe (31); the first sensor (75) is fixedly connected with the connecting pipe (31); the first sensor (75) is a distance sensor; the first sensor (75) is used for measuring the distance between the end part of the connecting pipe (31) and the bottom surface of the round hole (711); a second sensor (76) is arranged on the bottom surface of the round hole (711); the second sensor (76) is fixedly connected with the guide piece (71); the second sensor (76) is a height sensor; the second sensor (76) is used for measuring the height difference between the first sensor (75) and the center of the round hole (711); the second sensor (76) is communicated with the controller (15) through an electric signal; the sensor number one (75) is in electrical signal communication with the controller (15).

7. The heavy duty hydraulic cylinder barrel centrifugal casting apparatus of claim 6, wherein: a flexible piece (77) is arranged on one side of the guide piece (71); the flexible piece (77) is fixedly connected with the guide piece (71); the middle part of the flexible piece (77) is provided with a guide surface (771).

8. The heavy duty hydraulic cylinder barrel centrifugal casting apparatus of claim 7, wherein: one end of the lifting structure (211) close to the extension piece (414) is provided with a first slope structure (2111); one end of the extending piece (414) close to the lifting structure (211) is provided with a second slope structure (4141).