CN115229158B - Wheel hub compression molding equipment of electric automobile - Google Patents

Abstract

The invention relates to the technical field of auto parts, in particular to a wheel hub press molding equipment for an electric vehicle, which includes a base, a lifting device is provided on the outside of the base, and a cavity forming device is provided on one side of the lifting device. The cavity forming device includes a hub mold mechanism, a clamping and fixing mechanism, and a segmented temperature control mechanism. The clamping and fixing mechanism is equipped with an ultrasonic cleaning mechanism on the outside, and the top of the base is fixed with an automatic lifting feeding mechanism and a lifting injection mechanism. . The invention drives the vertical bar and the helical blade to rotate after the motor is energized, lifts the liquid metal in the liquid storage tank, and enters the open annular tube along the liquid guide tube. The wall is not in contact, and the open ring pipe is rotated so that the outlet of the discharge pipe is docked with the left butt joint. The rise and fall of the inner casing drives the butt joint to rise, and it is clamped with the discharge pipe, which can automatically feed the injection pressure chamber.

Description

Wheel hub press molding equipment for electric vehicles

technical field

The invention relates to the technical field of auto parts, in particular to a wheel hub press-forming equipment for an electric vehicle.

Background technique

The processing and manufacturing methods of automobile wheel hubs are divided into two categories: casting and forging. Among them, the forging method is used to manufacture the wheels through mechanical pressure, which has high strength. Among them, the wheel hub with more complex structure can be produced, the process is simple, but the strength of the finished product is low. Combining the above two situations, it is currently more popular to use extrusion casting, that is, the method of liquid forging for processing, which is the liquid metal in the machine. A casting method of forming and solidifying under pressure, the liquid metal fills the mold slowly and steadily from bottom to top, and keeps solidifying under high pressure;

At present, when the squeeze casting machine is loading materials, the mold pressure chamber is separated from the injection pressure chamber to fill the soup, that is, add molten liquid metal to the injection pressure chamber, and when filling the soup, the injection pressure chamber is tilted through the telescopic mechanism and the hinge mechanism. After filling the soup, the injection pressure chamber is tilted back. After the tilting, the pressure is applied to the molten soup through the extrusion of the punch. The whole soup filling process is cumbersome to operate. Due to the high temperature of the liquid metal, this makes the soup filling operation risky. Therefore, a study It is necessary to develop a wheel hub press forming equipment for electric vehicles.

Contents of the invention

(1) Solved technical problems

Aiming at the deficiencies of the prior art, the present invention provides a wheel hub press-forming equipment for electric vehicles, the purpose of which is to have the ability to automatically lift the metal molten soup and dock directly above the discharge port of the injection pressure chamber to feed the soup. It solves the problem that the whole feeding process of the current casting machine is cumbersome to operate and the operation risk is too high.

Technical solutions

In order to achieve the above object, the present invention provides the following technical solutions: a wheel hub press molding equipment for electric vehicles, including a base, a lifting device is provided on the outside of the base, a cavity forming device is provided on one side of the lifting device, the The cavity forming device includes a wheel hub mold mechanism, a clamping and fixing mechanism and a segmented temperature control mechanism. The outside of the clamping and fixing mechanism is equipped with an ultrasonic cleaning mechanism. Mechanism, the automatic lifting and feeding mechanism includes an upper cross bar and a lower cross bar, the lower side of the lower cross bar is provided with a liquid storage tank, one end of the upper cross bar is fixed with a motor, and the outer side of the motor is provided with a rotating guide For the material part and the automatic material lifting part, a groove is opened on the top of the base, an outer casing is fixed on the inner wall of the groove, an inner casing is movable inside the outer casing, and the bottom of the inner casing is connected with a The third hydraulic telescopic rod on the inner wall of the shell, a punch plate is movably connected to the inner wall of the inner sleeve shell, and four sets of butt joint pipes are fixed on the top of the inner sleeve shell, and a variable speed control member is provided on the lower side of the punch plate.

Preferably, a gantry frame is fixed on the top of the base, a chute is provided on the side of the gantry frame, and a slide plate is movably connected to the inner wall of the chute, and two groups of first hydraulic telescopic frames fixed on the inside of the gantry frame are fixed on the top of the slide plate. A connecting plate is fixed on one side of the sliding plate, and one end of the connecting plate is fixedly connected to the side of the second arc-shaped pressing plate.

Preferably, the hub mold mechanism includes an upper mold, a lower mold is provided on the lower side of the upper mold, four sets of sprue tubes are fixed on the bottom of the lower mold, and the outer surfaces of the upper mold and the lower mold are respectively clamped with The upper fixing part and the lower fixing part have the same inner structure.

Preferably, the lower fixing part includes a second arc-shaped pressing plate, and the upper fixing part includes two sets of first arc-shaped pressing plates, each set of first arc-shaped pressing plates are fixed with butt plates at both ends, and the Bolts are movable inside the docking plate. The first arc-shaped pressure plate and the outer surface of the docking plate are fixed with a number of circular cylindrical sleeves. A casing, a transducer is fixed on the inner wall of the cylindrical casing, a horn is fixed at one end of the transducer, and an ultrasonic generator is fixed on the inner wall of the heat-insulating casing.

Preferably, the top of the base is fixed with a top plate through a positioning vertical plate, and the bottom of the top plate is fixed with two sets of second hydraulic telescopic rods, and the bottom of each group of the second hydraulic telescopic rods is fixed with a welding plate, and the second A process temperature control is arranged on the outside of the hydraulic telescopic rod, a U-shaped connecting plate is fixedly connected to the bottom of the welding plate, and the bottom end of the U-shaped connecting plate is fixedly connected to the top of a group of butt plate.

Preferably, the process temperature control includes an annular sleeve fixed on the top of the U-shaped connecting plate, a strip casing is fixed inside the annular sleeve, and several outlets are opened at the bottom of the annular sleeve cavity. The top of the strip-shaped casing is fixed with a blast casing, and the bottom of the strip-shaped casing is fixed with two sets of lower air outlet pipes, and the bottom of the lower air outlet pipes is fixed with a heat exchange hollow cylinder.

Preferably, an air inlet is opened on the top of the blast casing, a fan is fixed on the inner wall of the blast casing, and two sets of square tubes extending to the inside of the strip casing are fixed on the bottom of the blast casing. A side air outlet pipe extending to the inside of the annular casing is fixed on one side of the strip casing, a solenoid valve is fixedly installed inside the side air outlet pipe, and an electric heating pipe is fixed on the inner wall of the strip casing.

Preferably, the upper cross bar and the lower cross bar are fixed on the base through the positioning vertical plate, the automatic lifting part includes a cylindrical sleeve fixed at the end of the lower cross bar, and a guide is fixed on the top of the cylindrical sleeve. Liquid curved pipe, the bottom end of the output shaft of the motor is fixedly connected with a vertical rod, and the vertical rod is movably inserted into the inside of the cylindrical sleeve, and several spiral blades are fixed on the outer surface of the vertical rod, and the outer surface of the spiral blade reaches the The shortest distance between the inner walls of the cylindrical sleeve is two millimeters.

Preferably, the top of the motor is fixed with a bearing, the inner ring of the top of the bearing is movably connected with a rotating shaft, and the outer surface of the rotating shaft is fixed with four sets of curved connecting rods, and one end of the curved connecting rods is fixedly connected with an open annular tube, so A drain pipe is fixed on one side of the open annular tube, and one end of the curved tube extends to the cavity of the open annular tube.

Preferably, the center of the inner edge of the top of the butt joint pipe and the center of the inner edge of the bottom of the sprue tube are on the same vertical line, the speed change control part includes a first hydraulic pump and a second hydraulic pump, the first hydraulic pump, the second hydraulic pump The input end of the second hydraulic pump is connected to a hydraulic oil tank through a curved pipe. The inner wall of the inner casing is fixed with a lower cylinder through a vertical plate, and the inner wall of the inner casing is fixed with an upper cylinder through a horizontal plate. The lower cylinder is a An oil distribution pipe is fixed on the side, and an oil return pipe is fixedly connected to the top of the oil distribution pipe.

Preferably, the output end of the second hydraulic pump is fixed with a second oil pipe extending to the inside of the upper cylinder, the output end of the first hydraulic pump is fixed with a first oil pipe extending inside the upper cylinder, and one end of the oil distribution pipe extends to Inside the first oil pipe, the top of the oil return pipe extends to the inside of the second oil pipe, a type piston is movably connected to the inner wall of the lower cylinder, and a type slide rod is fixed on the top of the type I piston to move through the upper cylinder .

Preferably, the top of the first-type sliding rod is fixed with a second-type piston that is movably installed on the inner wall of the upper cylinder, and the top of the second-type piston is fixed with a second-type sliding rod that is movably penetrated to the outside of the upper cylinder. , The second oil pipe, the oil distribution pipe and the oil return pipe are all fixedly installed with explosion-proof solenoid valves.

Beneficial effect

Compared with the prior art, the present invention provides a wheel hub press-forming equipment for an electric vehicle, which has the following beneficial effects:

1. Through the cooperation between the internal structures of the automatic lifting and feeding mechanism, the shortest distance from the outer surface of the helical blade to the inner wall of the cylindrical sleeve is 2 millimeters. The two dimensions match and are not in contact, which does not affect the rotation of the helical blade. The motor is powered on and driven The vertical rod and the helical blade rotate to lift the liquid metal in the liquid storage tank and enter the open annular tube along the liquid guide tube. Since the rotating shaft is movably connected with the bearing, and the liquid guide tube does not contact the inner wall of the open circular tube, it can rotate The open ring pipe makes the outlet end of the discharge pipe dock with the left butt joint, and the rise and fall of the inner casing drives the butt joint to rise, and is clamped with the discharge pipe, which can automatically feed the injection pressure chamber.

2. Through the cooperation between the internal structures of the lifting and lowering mechanism, the inner casing can slide up and down along the top of the outer casing, and the inner casing is driven up and down by the third hydraulic telescopic rod, and the left docking pipe is docked with the discharge pipe. After the liquid metal filling is completed, the third hydraulic telescopic rod shrinks and resets, the butt joint pipe and the discharge pipe are separated, and the open ring pipe is rotated to remove the liquid discharge pipe, and the third hydraulic telescopic rod is extended again, so that the four sets of butt pipes extend into The mouth tube and the variable speed control part can move the punch plate to press the liquid metal into the wheel hub mold mechanism. By increasing the pressure, the liquid metal will be denser, and it will be closely attached to the cavity wall, and cooled and solidified.

3. Through the cooperation between the internal structures of the set variable speed control parts, when the punch plate is lifted, since the shape of the hub is set in large, medium, large and small from bottom to top, in order to ensure the quality of condensation forming, it is necessary to control the upward movement speed of liquid metal liquid There are three speeds: fast, medium, fast and slow. Close the explosion-proof solenoid valves in the second oil pipe and the first oil pipe, open the explosion-proof solenoid valves in the oil distribution pipe and the oil return pipe, and the pressure oil enters the lower hydraulic pump from the first hydraulic pump and the oil distribution pipe. Cylinder, when the type II piston can be pushed up, the hydraulic oil on the upper side of the type II piston returns to the oil distribution pipe and enters the lower cylinder. At this time, the hydraulic speed is the fastest. The solenoid valve of the oil pipe, the hydraulic oil on the upper side of the type II piston returns to the hydraulic oil tank, the speed of the oil pumped into the oil distribution pipe decreases, then the solenoid valve of the oil distribution pipe is closed, and the solenoid valve of the first oil pipe is opened, and the hydraulic oil enters from the first oil pipe alone For the upper cylinder, when the hydraulic oil pumping efficiency is the same, because the cross-sectional area of the upper cylinder is larger than that of the lower cylinder, the moving speed of the punch plate is the lowest at this time, and the electric adjustment of the three-stage upward moving speed can be conveniently realized.

4. Through the cooperation between the internal structure of the set process temperature control, before the equipment starts processing, the fan is energized to blow air, and the air flow enters the strip casing along the square tube, is heated by the electric heating tube, and comes out from the bottom respectively. The air duct and the side outlet duct are discharged to preheat the lower hub mold mechanism. As the pressing process proceeds, due to the thin-walled plate on the upper side of the upper mold, the liquid metal at this local position may cool down before it can be pressurized in the future. Solidify, close the solenoid valve, the heat flow only enters the heat exchange hollow cylinder that overlaps with the top of the upper mold through the lower air outlet pipe for heat exchange, and is discharged from the other lower air outlet pipe to form a cycle. During the pressing process, the thin Partial heat treatment is carried out on the wall to ensure the strength and isotropy of the hub after molding.

5. Through the cooperation between the internal structures of the ultrasonic cleaning mechanism, after the hub is formed, and the upper mold and the lower mold are demoulded, the inner wall of the cavity needs to be cleaned, in order to improve the inner wall of the upper mold, the lower mold and the gate tube. Cleanliness, the electric power is output through the ultrasonic generator, and the electric power is converted into mechanical power with the transducer. The horn amplifies the vibration amplitude and speed, reduces the resonance impedance, and improves the electro-acoustic conversion efficiency. The cavitation effect improves the cleaning effect when cleaning the inner wall of the cavity.

Description of drawings

The drawings described here are used to provide a further understanding of the application and constitute a part of the application. The schematic embodiments and descriptions of the application are used to explain the application and do not constitute an improper limitation to the application. In the attached picture:

Fig. 1 is the three-dimensional schematic diagram of the present invention;

Fig. 2 is a side view of the present invention;

Fig. 3 is a three-dimensional schematic diagram of a lifting device and a cavity forming device of the present invention;

Figure 4 is an exploded view of the lifting device and the cavity forming device of the present invention;

Fig. 5 is the enlarged schematic view of place A of the present invention;

Fig. 6 is a three-dimensional schematic diagram of the hub mold mechanism of the present invention;

Fig. 7 is a three-dimensional schematic diagram of the clamping and fixing mechanism and the cylindrical sleeve of the present invention;

Fig. 8 is an exploded view of the hub mold mechanism and the clamping and fixing mechanism of the present invention;

Fig. 9 is a top view of the segmented temperature control mechanism of the present invention;

Fig. 10 is an enlarged schematic diagram of place B of the present invention;

Fig. 11 is a three-dimensional schematic diagram of a segmented temperature control mechanism of the present invention;

Fig. 12 is an exploded view of the segmental temperature control mechanism of the present invention;

Fig. 13 is a three-dimensional cross-sectional schematic diagram of a strip casing and a blast casing of the present invention;

Fig. 14 is a schematic three-dimensional cross-sectional view of a heat insulating casing of the present invention;

Fig. 15 is a schematic three-dimensional cross-sectional view of a cylindrical sleeve of the present invention;

Fig. 16 is a three-dimensional schematic diagram of the automatic lifting soup feeding mechanism of the present invention;

Fig. 17 is a three-dimensional schematic diagram of the motor, the rotating material guide and the automatic material lifting part of the present invention;

Fig. 18 is a top view of the rotary material guide of the present invention;

Fig. 19 is an exploded view of the automatic material lifting part of the present invention;

Fig. 20 is a three-dimensional schematic view of the lifting injection mechanism and gate pipe of the present invention;

Fig. 21 is a schematic cross-sectional view of the lifting injection mechanism of the present invention;

Fig. 22 is an enlarged schematic diagram of position C of the present invention;

Fig. 23 is a schematic cross-sectional view of the lower cylinder and the upper cylinder of the present invention.

In the figure: 1, base; 11, top plate; 2, lifting device; 21, gantry frame; 22, chute; 23, slide plate; 24, first hydraulic telescopic rod; 25, connecting plate; 3, cavity forming device ;4, wheel hub mold mechanism; 41, upper mold; 42, lower mold; 43, sprue tube; 5, clamping and fixing mechanism; , bolts; 52, lower fixing piece; 521, second arc-shaped pressure plate; 6, segmental temperature control mechanism; 61, second hydraulic telescopic rod; 62, welding plate; 63, U-shaped connecting plate; 64, process temperature Control; 641, annular casing; 642, strip casing; 6421, electric heating tube; 6422, side outlet air pipe; 6423, solenoid valve; 643, blast casing; 6431, fan; 6432, square pipe; 644, the lower air duct; 645, the heat exchange hollow cylinder; 7, the ultrasonic cleaning mechanism; 71, the heat insulation casing; 711, the ultrasonic generator; 72, the cylindrical casing; 721, the transducer; 722, the transformer Width bar; 8, automatic lifting soup supply mechanism; 81, liquid storage tank; 82, motor; 83, upper cross bar; 84, lower cross bar; 85, rotating material guide; 851, bearing; Curved connecting rod; 854, open annular pipe; 855, liquid discharge pipe; 86, automatic lifting part; 861, cylindrical sleeve; 862, vertical rod; 863, spiral blade; Pressure-reducing injection mechanism; 91, outer shell; 92, inner shell; 93, third hydraulic telescopic rod; 94, punch plate; 95, butt joint; 96, variable speed control member; 961, first hydraulic pump; The first oil pipe; 962, the second hydraulic pump; 9621, the second oil pipe; 963, the lower cylinder; 9631, the first type piston; 9632, the first type slide rod; 964, the upper cylinder; Type II slide rod; 965, oil distribution pipe; 966, oil return pipe.

Detailed ways

The implementation of the present application will be described in detail below with reference to the accompanying drawings and examples, so as to fully understand and implement the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects.

Figure 1-23 is an embodiment of the present invention, a wheel hub press molding equipment for electric vehicles, including a base 1, a lifting device 2 is provided on the outside of the base 1, and a cavity forming device 3 is provided on one side of the lifting device 2. The cavity forming device 3 includes a hub mold mechanism 4, a clamping and fixing mechanism 5, and a segmented temperature control mechanism 6. An ultrasonic cleaning mechanism 7 is arranged on the outside of the clamping and fixing mechanism 5, and an automatic lifting and feeding mechanism 8 and a lifting mechanism 8 are fixed on the top of the base 11. The pressure-reducing injection mechanism 9, the wheel hub of the electric vehicle is made of aluminum alloy, and the prepared aluminum alloy is heated and melted at a high temperature. The aluminum alloy is heated to about 660°C and becomes molten. Move up to the mold cavity, due to the high temperature of the liquid alloy liquid, when the equipment is designed and manufactured, all structures in contact with the alloy liquid are made of high-temperature resistant metal materials to ensure that the molten aluminum alloy solution will not damage the equipment structure. Cause damage, pressurize the liquid metal through continuous upward movement, make the tissue dense, and feed through the pressure transmission, speed up the solidification speed and make the tissue uniform, the liquid metal fills the mold slowly and steadily from bottom to top, and maintains the Solidify under high pressure to prevent the influx of air bubbles during the upward movement of the liquid metal. The automatic lifting mechanism 8 includes a cross bar 83 and a lower cross bar 84. The lower side of the lower cross bar 84 is provided with a liquid storage tank 81 and an upper cross bar 83. One end is fixed with a motor 82, the outer side of the motor 82 is provided with a rotating material guide 85 and an automatic lifting member 86, the top of the base 1 is provided with a groove, and an outer shell 91 is fixed on the inner wall of the groove, and an inner shell is movable inside the outer shell 91 92, the bottom of the inner casing 92 is connected with the third hydraulic telescopic rod 93 fixed on the inner wall of the outer casing 91, the inner wall of the inner casing 92 is movably connected with a punch plate 94, and the top of the inner casing 92 is fixed with four sets of butt joint pipes 95 , the lower side of the punch plate 94 is provided with a variable speed control member 96, the punch plate 94 moves up to press the liquid metal into the hub mold mechanism 4, and the pressurized by the upward movement of the punch plate 94, the formation of air bubbles can be suppressed, reducing even Eliminate pore defects in hub castings. By applying pressure to the solidified alloy liquid, the solubility of gas in the alloy can be increased to reduce the amount of gas that can be precipitated, and the external pressure also increases the difficulty of bubble formation, thereby inhibiting the formation of bubbles. Due to condensation With the increase of speed, the gas has no time to diffuse and precipitate and is dissolved in the alloy. Under the action of the punch plate 94 continuously moving up slowly to pressurize and maintain the pressure, the pressure crystallization can significantly shorten the solidification time of the metal alloy liquid and reduce the diffusion of solute elements. coefficient, and inhibit the formation of segregation, which is beneficial to improve the uniformity of the alloy composition, and promote the uniform distribution of non-metallic inclusions. In addition, when the upward movement speed of the punch plate 94 is too low, it is easy to cause the metal to die when the molten metal does not fill the cavity. Can not flow, if the speed is too high, the flow rate is too fast when the molten metal fills the mold, eddy currents will be generated in the molten metal, and gas will be involved. It is very important to control the upward movement speed of the punch plate 94.

A gantry 21 is fixed on the top of the base 1, a chute 22 is provided on the side of the gantry 21, a slide plate 23 is movably connected to the inner wall of the chute 22, and two groups of first hydraulic telescopic rods 24 fixed on the inside of the gantry 21 are fixed on the top of the slide plate 23. And one side of the slide plate 23 is fixed with a connecting plate 25, and one end of the connecting plate 25 is fixedly connected to the side of the second arc-shaped pressing plate 521. The wheel hub mold mechanism 4 includes an upper mold 41, and the lower side of the upper mold 41 is provided with a lower mold 42. Four sets of sprue tubes 43 are fixed on the bottom of the mold 42, the upper mold 41 and the outer surface of the lower mold 42 are clamped with an upper fixing part 51 and a lower fixing part 52 respectively, the upper fixing part 51 and the lower fixing part 52 have the same internal structure, and the lower fixing part The member 52 includes a second arc-shaped pressing plate 521, and the upper fixing member 51 includes two sets of first arc-shaped pressing plates 511, and each set of first arc-shaped pressing plates 511 is fixed with a butt plate 512 at both ends, and the inner part of the butt plate 512 is movable. There are bolts 513. Before pouring, it is necessary to brush the lubricant on the working surface of the casting mold and the punch. For the pressing of the aluminum alloy wheel hub, the inner wall of the hub mold mechanism 4 should be coated with water-based colloidal graphite. The pressing plate 511 and the second arc-shaped pressing plate 521 are pressed and contacted with the upper mold 41 and the lower mold 42 respectively, and the internal movement of the docking plate 512 is provided with bolts 513, and the bolts 513 are pierced and installed, which can conveniently complete the clamping of the hub mold mechanism 4 , the cost is lower.

The outer surfaces of the first arc-shaped pressing plate 511 and the butt plate 512 are all fixed with a number of circular cylindrical sleeves 72, and the outer sides of the cylindrical sleeves 72 are provided with a heat-insulating casing 71 fixed on the top of the slide plate 23, and the cylindrical sleeves A transducer 721 is fixed on the inner wall of 72, and a horn 722 is fixed at one end of the transducer 721. An ultrasonic generator 711 is fixedly installed on the inner wall of the heat insulation casing 71, and the electric power is output by the ultrasonic generator 711. The transducer 721 will Electric power is converted into mechanical power, and the horn 722 amplifies the vibration amplitude and speed, and utilizes ultrasonic penetration and cavitation to improve the cleaning effect when cleaning the inner wall of the cavity.

The top of the base 1 is fixed with a top plate 11 through a positioning vertical plate, and two sets of second hydraulic telescopic rods 61 are fixed at the bottom of the top plate 11, and a welding plate 62 is fixed at the bottom of each group of second hydraulic telescopic rods 61, and the outside of the second hydraulic telescopic rods 61 There is a process temperature control 64, the bottom of the welding plate 62 is fixedly connected with a U-shaped connecting plate 63, the bottom of the U-shaped connecting plate 63 is fixedly connected with the top of a group of docking plates 512, and the second hydraulic telescopic rod 61 can be stretched and controlled The up and down movement of the upper mold 41 clamped by the fixture 51 is convenient for mold clamping and demoulding. The process temperature control 64 includes an annular sleeve 641 fixed on the top of the U-shaped connecting plate 63, and the inner side of the annular sleeve 641 is fixed with a strip Shaped casing 642, and the bottom of the annular casing 641 cavity is provided with a number of air outlets, the top of the bar-shaped casing 642 is fixed with a blower casing 643, and the bottom of the strip-shaped casing 642 is fixedly installed with two sets of lower air outlet pipes 644 , the bottom of the lower air outlet pipe 644 is fixed with a heat exchange hollow cylinder 645, the top of the blast casing 643 is provided with an air inlet, the inner wall of the blast casing 643 is fixed with a fan 6431, and the bottom of the blast casing 643 is fixed with two sets of The square pipe 6432 extending to the inside of the strip casing 642, the side outlet pipe 6422 extending to the inside of the annular casing 641 is fixed on one side of the strip casing 642, and the solenoid valve 6423 is fixedly installed inside the side outlet pipe 6422, and An electric heating tube 6421 is fixed on the inner wall of the strip casing 642. The airflow enters the strip casing 642 along the square tube 6432, is heated by the electric heating tube 6421, and is discharged from the lower air outlet pipe 644 and the side air outlet pipe 6422 respectively. Preheat the lower hub mold mechanism 4. As the pressing process proceeds, because there is a thin-walled plate on the upper side of the upper mold 41, the liquid metal in this local position may be cooled and solidified before it can be pressurized in the future, and the solenoid valve 6423 is closed. The heat flow only enters the interior of the heat exchange hollow cylinder 645 overlapping with the top of the upper mold 41 through the lower air outlet pipe 644 for heat exchange, and locally heats the thin-walled parts on the upper side of the upper mold 41 to ensure the isotropy of the hub after forming .

The upper cross bar 83 and the lower cross bar 84 are fixed on the base 1 through the positioning vertical plate, and the automatic lifting part 86 includes a cylindrical sleeve 861 fixed on the end of the lower cross bar 84, and the top of the cylindrical sleeve 861 is fixed with a liquid guide. The pipe 864 and the bottom end of the output shaft of the motor 82 are fixedly connected with a vertical rod 862, and the vertical rod 862 is movable to the inside of the cylindrical sleeve 861, and several helical blades 863 are fixed on the outer surface of the vertical rod 862, and the outer surface of the helical blade 863 reaches the The closest distance to the inner wall of the cylindrical sleeve 861 is two millimeters. After the motor 82 is energized, the vertical rod 862 and the helical blade 863 are driven to rotate, and the liquid metal in the liquid storage tank 81 can be lifted. , the top of the motor 82 is fixed with a bearing 851, the inner ring of the top of the bearing 851 is movably connected with a rotating shaft 852, and the outer surface of the rotating shaft 852 is fixed with four groups of curved connecting rods 853, and one end of the curved connecting rods 853 is fixedly connected with an open annular tube 854, an open annular tube A liquid discharge pipe 855 is fixed on one side of the 854, and one end of the curved pipe 864 extends to the inside of the cavity of the open annular pipe 854. After the liquid metal moves up and lifts under the action of rotation, it enters the open annular pipe 854 along the curved pipe 864. Since the rotating shaft 852 is flexibly connected with the bearing 851, and the curved pipe 864 is not in contact with the inner wall of the open annular pipe 854, the open annular pipe 854 can be rotated.

When lifting the punch plate 94, since the shape of the hub is set from bottom to top as large, medium, large and small, the top of the hub is provided with a thin-walled molding plate. Fast and slow, there are three speeds in total, to prevent the molten metal from solidifying without pressurization, control the pressurization rate to match the size of the inner space of the mold cavity, and the center of the inner edge of the top of the butt joint tube 95 and the center of the inner edge of the bottom of the gate tube 43 are at the same On the vertical line, the speed change control member 96 includes a first hydraulic pump 961 and a second hydraulic pump 962. The input ends of the first hydraulic pump 961 and the second hydraulic pump 962 are connected to a hydraulic oil tank through curved pipes. The plate is fixed with a lower cylinder 963, and the inner wall of the inner casing 92 is fixed with an upper cylinder 964 through a horizontal plate, and an oil distribution pipe 965 is fixed on one side of the lower cylinder 963, and the top of the oil distribution pipe 965 is fixedly connected with an oil return pipe 966. The output end of the pump 962 is fixed with a second oil pipe 9621 extending to the inside of the upper cylinder 964, the output end of the first hydraulic pump 961 is fixed with a first oil pipe 9611 extending inside the upper cylinder 964, and one end of the oil distribution pipe 965 extends to the inside of the first oil pipe 9611 , the top of the oil return pipe 966 extends to the inside of the second oil pipe 9621, a type 1 piston 9631 is movably connected to the inner wall of the lower cylinder 963, and a type 1 slide rod 9632 is fixed on the top of the type 1 piston 9631 to move through the inside of the upper cylinder 964. The top of the slide rod 9632 is fixed with a Type II piston 9641 that is movably installed on the inner wall of the upper cylinder 964, and the top of the Type II piston 9641 is fixed with a Type II slide rod 9642 that is movable to the outside of the upper cylinder 964. The top of the Type II slide rod 9642 is connected The plate is fixedly connected with the punch plate 94, and explosion-proof electromagnetic valves are fixedly installed inside the first oil pipe 9611, the second oil pipe 9621, the oil distribution pipe 965 and the oil return pipe 966, and the explosion-proof electromagnetic valves in the second oil pipe 9621 and the first oil pipe 9611 are closed. Open the explosion-proof electromagnetic valve of the oil distribution pipe 965 and the oil return pipe 966, the pressure oil enters the lower cylinder 963 from the first hydraulic pump 961 and the oil distribution pipe 965, and when the second type piston 9641 can be pushed upward, the hydraulic oil on the upper side of the second type piston 9641 flows back To the oil distribution pipe 965 and enter the lower cylinder 963, the hydraulic speed is the fastest at this time, on this basis, close the solenoid valve of the oil return pipe 966, open the solenoid valve of the second oil pipe 9621, and the hydraulic oil on the upper side of the second type piston 9641 returns to the hydraulic pressure. The oil tank, the speed of oil pumped into the oil distribution pipe 965 is reduced, then the solenoid valve of the oil distribution pipe 965 is closed, and the solenoid valve of the first oil pipe 9611 is opened, and the hydraulic oil enters the upper cylinder 964 from the first oil pipe 9611 alone. At the same time, since the cross-sectional area of the upper cylinder 964 is larger than that of the lower cylinder 963, the upward movement speed of the punch plate 94 is the lowest at this time, and the electric adjustment of the three-stage upward movement speed can be conveniently realized. Plate 94 resets, closes the explosion-proof solenoid valve in the oil return pipe 966, opens the explosion-proof solenoid valve in the second oil pipe 9621, the first oil pipe 9611 and the oil distribution pipe 965, and uses the second hydraulic pump 962 to extract the hydraulic oil inside the hydraulic oil tank. After pressurization, the pressure The oil enters the upper cylinder 964 from the second oil pipe 9621, presses down on the second type piston 9641, drives the punch plate 94 to move down, and the hydraulic oil on the lower side of the second type piston 9641 flows back.

The electrical components appearing in this article are all connected with the external main controller and 220V mains electricity, and the main controller can be a conventional known device that plays a control such as a computer.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (7)

1. The utility model provides an electric automobile's wheel hub compression molding equipment, including base (1), the base (1) outside is equipped with hoisting device (2), hoisting device (2) one side is equipped with die cavity forming device (3), its characterized in that: the die cavity forming device (3) comprises a hub die mechanism (4), a clamping and fixing mechanism (5) and a sectional temperature control mechanism (6), an ultrasonic cleaning mechanism (7) is arranged on the outer side of the clamping and fixing mechanism (5), and an automatic lifting soup feeding mechanism (8) and a lifting injection mechanism (9) are fixed on the top of the base (1);

the automatic lifting soup feeding mechanism (8) comprises an upper cross rod (83) and a lower cross rod (84), a liquid storage tank (81) is arranged on the lower side of the lower cross rod (84), a motor (82) is fixed at one end of the upper cross rod (83), and a rotary material guide piece (85) and an automatic material lifting piece (86) are arranged on the outer side of the motor (82);

the novel hydraulic telescopic device is characterized in that the top of the base (1) is provided with a groove, an outer sleeve shell (91) is fixed on the inner wall of the groove, an inner sleeve shell (92) is movably arranged in the outer sleeve shell (91), the bottom of the inner sleeve shell (92) is connected with a third hydraulic telescopic rod (93) fixed on the inner wall of the outer sleeve shell (91), the inner wall of the inner sleeve shell (92) is movably connected with a punch plate (94), four groups of butt joint pipes (95) are fixed on the top of the inner sleeve shell (92), and a speed change control piece (96) is arranged on the lower side of the punch plate (94);

the hub die mechanism (4) comprises an upper die (41), a lower die (42) is arranged on the lower side of the upper die (41), four groups of pouring gates (43) are fixed at the bottom of the lower die (42), an upper fixing piece (51) and a lower fixing piece (52) are respectively clamped on the outer surfaces of the upper die (41) and the lower die (42), and the inner structures of the upper fixing piece (51) and the lower fixing piece (52) are identical;

the automatic lifting device is characterized in that the upper cross rod (83) and the lower cross rod (84) are fixed on the base (1) through positioning risers, the automatic lifting piece (86) comprises a cylindrical sleeve (861) fixed at the end part of the lower cross rod (84), a liquid guiding curved tube (864) is fixed at the top of the cylindrical sleeve (861), a vertical rod (862) is fixedly connected to the bottom end of an output shaft of a motor (82), the vertical rod (862) is movably arranged inside the cylindrical sleeve (861) in a penetrating mode, a plurality of spiral blades (863) are fixed on the outer surface of the vertical rod (862), and the nearest distance from the outer surface of each spiral blade (863) to the inner wall of the cylindrical sleeve (861) is two millimeters;

the motor is characterized in that a bearing (851) is fixed at the top of the motor (82), a rotating shaft (852) is movably connected with an inner ring at the top of the bearing (851), four groups of curved connecting rods (853) are fixed on the outer surface of the rotating shaft (852), an open annular tube (854) is fixedly connected with one end of each curved connecting rod (853), a liquid discharge tube (855) is fixed on one side of each open annular tube (854), and one end of each liquid guide curved tube (864) extends into the cavity of each open annular tube (854).

2. The hub compression molding apparatus of an electric vehicle according to claim 1, wherein: the lower fixing piece (52) comprises a second arc-shaped pressing plate (521), the upper fixing piece (51) comprises two groups of first arc-shaped pressing plates (511), each group of first arc-shaped pressing plates (511) is provided with an abutting plate (512) at two ends, and bolts (513) are movably arranged in the abutting plates (512) in a penetrating mode.

3. The hub compression molding apparatus of an electric vehicle according to claim 1, wherein: the base (1) top is fixed with roof (11) through location riser, roof (11) bottom is fixed with two sets of second hydraulic telescoping rod (61), every group second hydraulic telescoping rod (61) bottom all is fixed with welded plate (62), just second hydraulic telescoping rod (61) outside is equipped with process temperature control spare (64), welded plate (62) bottom fixedly connected with U type linking board (63), U type linking board (63) bottom and a set of butt joint board (512) top fixed connection.

4. A hub compression molding apparatus of an electric vehicle as claimed in claim 3, wherein: the process temperature control part (64) comprises an annular sleeve (641) fixed at the top of a U-shaped connecting plate (63), a strip-shaped sleeve (642) is fixed on the inner side of the annular sleeve (641), a plurality of air outlets are formed in the bottom of a cavity of the annular sleeve (641), an air blasting sleeve (643) is fixed at the top of the strip-shaped sleeve (642), two groups of lower air outlet pipes (644) are fixedly arranged at the bottom of the strip-shaped sleeve (642), and a heat exchange hollow column casing (645) is fixed at the bottom of the lower air outlet pipes (644).

5. The electric automobile's wheel hub compression molding equipment according to claim 4, wherein: air intake has been seted up at blast casing (643) top, be fixed with fan (6431) on blast casing (643) inner wall, just blast casing (643) bottom is fixed with two sets of square pipe (6432) that extend to bar casing (642) inside, bar casing (642) one side is fixed with and extends to the inside side tuber pipe (6422) of annular sleeve (641), side tuber pipe (6422) internally fixed installs solenoid valve (6423), just be fixed with electric heating pipe (6421) on bar casing (642) inner wall.

6. The hub compression molding apparatus of an electric vehicle according to claim 1, wherein: the utility model discloses a hydraulic oil control device for a runner pipe, including butt joint pipe (95), runner pipe (43) bottom, speed change control piece (96) are in same vertical line with runner pipe (963) bottom inner limit centre of a circle, speed change control piece (96) are including first hydraulic pump (961) and second hydraulic pump (962), first hydraulic pump (961), second hydraulic pump (962) input is connected with hydraulic tank through the curved tube, interior cover shell (92) inner wall is fixed with down cylinder (963) through the riser, just interior cover shell (92) inner wall is fixed with cylinder (964) through the diaphragm, lower cylinder (963) one side is fixed with branch oil pipe (965), divide oil pipe (965) top fixedly connected with oil return pipe (966).

7. The electric automobile's wheel hub compression molding equipment according to claim 6, wherein: the second hydraulic pump (962) output is fixed with the second oil pipe (962) that extends to the inside of upper cylinder (964), first hydraulic pump (961) output is fixed with the first oil pipe (9611) that extends to the inside of upper cylinder (964), divide oil pipe (965) one end to extend to the inside of first oil pipe (9611), it extends to the inside of second oil pipe (962) to return oil pipe (966) top, swing joint has a type piston (9631) on lower cylinder (963) inner wall, first oil pipe (9611), second oil pipe (962), divide oil pipe (965) and return oil pipe (966) inside all fixed mounting have explosion-proof solenoid valve.

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