Low-temperature casting device for automobile aluminum alloy hub

Abstract

The invention relates to the technical field of low-temperature casting, and discloses an automobile aluminum alloy hub low-temperature casting device which comprises a casting table, a supporting frame is fixedly connected to the upper surface of the casting table, a die-casting machine is fixedly connected to the upper surface of the supporting frame, and a linear motor is fixedly connected to the upper surface of the casting table. According to the hub casting device, the movable clamping block cannot be continuously fixed to the pressing plate after being not locked by the plug pin, so that the upper die base can be rapidly detached, then the upper die bases with different diameters are replaced according to the inner diameter of a hub needing to be cast, and the hub casting efficiency is improved. The upper die base can be rapidly installed on the pressing plate by pushing the plug pin to be inserted into the movable clamping block, the applicability of the device is improved, the use convenience is also improved, the movable lower die plate is pulled away from the clamping frame in advance, and the situation that the machining efficiency is reduced due to the fact that the upper die base cannot take up the hub blank due to adhesion of the hub blank and the movable lower die plate can be avoided.

Description

Technical Field

[0001] The invention relates to the technical field of low-temperature casting, in particular to a low-temperature casting device for an automobile aluminum alloy wheel hub. Background Art

[0002] The wheel hub, also known as the rim, is a cylindrical component that is used to support the inner contour of the tire and is centrally assembled on the shaft. Common automobile wheel hubs include steel wheel hubs and aluminum alloy wheel hubs. Steel wheel hubs have high strength and are often used in large trucks, but steel wheel hubs are heavy and have a single appearance. They do not conform to today's low-carbon and fashionable concepts and are gradually being replaced by aluminum alloy wheel hubs. Low-temperature casting generally refers to the process of injecting liquid into a sealed container, then filling the container with compressed air to make the liquid rise and fill the entire container, and then waiting for cooling and forming before demolding. This method is suitable for casting large, thin-walled, complex castings, and has a high metal recovery rate. The existing technology cannot quickly install and replace the mold, and its applicability is low.

[0003] The patent with announcement number CN219817984U discloses a low-pressure casting device for automobile wheel hub, which includes an operating table, fixed rods are fixedly connected at the four corners of the top of the operating table, a fixed plate is fixedly connected to the top of the fixed rod, a first cylinder is fixedly installed on the top of the fixed plate, the output shaft of the first cylinder is fixedly connected to a slide plate, the slide plate is slidably connected between the four fixed rods, a clamping mechanism is arranged at the bottom of the slide plate, an injection molding mechanism is arranged at the bottom of the operating table, a mold removal mechanism is arranged on one side of the slide plate near the clamping mechanism at the top of the operating table, and an ejection mechanism is arranged inside the slide plate; by setting the mold removal mechanism, the receiving plate rotates to a suitable position with the vertical movement of the slide plate, and the automobile wheel hub injection molding parts are received and conveyed to the next process, which improves the continuity of the work and improves the efficiency of conveying the automobile wheel hub molding parts to the next processing procedure. Although the patent solves the above problems, it still has the problem that the mold cannot be quickly installed and replaced, and only a single wheel hub can be processed, and the applicability is low. Therefore, a low-temperature casting device for automobile aluminum alloy wheel hub is proposed to solve the above problems. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a low-temperature casting device for automobile aluminum alloy wheel hub in view of the deficiencies in the above-mentioned prior art.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a low-temperature casting device for automobile aluminum alloy wheel hub, comprising a casting table, the upper surface of the casting table is fixedly connected to a support frame, the upper surface of the support frame is fixedly connected to a die-casting machine, the upper surface of the casting table is fixedly connected to a linear motor, the moving end of the linear motor is fixedly connected to a card frame, the upper surface of the card frame is fixedly connected to a side mold seat, the output end of the die-casting machine is fixedly connected to a pressure plate, the inner side of the pressure plate is provided with a liquid injection port, the upper surface of the pressure plate is fixedly connected to a fixed card block, and the inner surface of the fixed card block is slidably connected to the inner surface of the fixed card block. There is a latch, the circumferential surface of the latch is clamped with a movable clamping block, the lower surface of the movable clamping block is fixedly connected to the upper die seat, the inner surface of the clamping frame is slidably connected to the movable lower template, the inner side of the movable lower template is provided with an adjustment groove, the inner side of the movable lower template is provided with a positioning hole, the lower surface of the pressing plate is fixedly connected with a positioning rod, a coating device for coating the inner wall of the mold with a release agent is provided below the support frame, an oscillation device for preventing bubbles from being generated during the cooling process of the aluminum liquid is provided below the support frame, the output end of the die-casting machine passes through the lower surface of the top of the support frame from the upper surface of the support frame, The movable clamping block penetrates the upper surface of the pressing plate from the lower surface of the pressing plate, and the upper surface of the movable lower template and the lower surface of the side mold seat contact each other, and the linear motor is started, and the linear motor drives the left and right side mold seats to approach each other and merge. After the side mold seats are merged, the die-casting machine is started, and the die-casting machine drives the pressing plate to press down, and the pressing plate drives the upper mold seat to press down. When the pressing plate supports the top of the side mold seat, the aluminum liquid is injected into the mold through the injection port, and the casting of the wheel hub embryo is completed after the aluminum liquid cools down. When it is necessary to cast wheels with different inner diameters, the pin is pulled to disengage the pin from the movable clamping block, and the movable clamping block cannot be fixed after losing the locking of the pin. On the pressure plate, after the top surface of the upper die seat is fitted with the lower surface of the pressure plate, the movable clamp block is inserted into the pressure plate and aligned with the fixed clamp block. At this time, push the pin to insert the pin into the movable clamp block, so that the upper die seat can be quickly installed on the pressure plate. During demolding, the die-casting machine drives the pressure plate and the upper die seat to rise, and the wheel hub embryo is first driven by the upper die seat to separate from the side die seat and the movable lower template. Pulling the movable lower template out of the clamp frame in advance can avoid the wheel hub embryo from sticking to the movable lower template. During casting, first fit the left and right movable lower templates, and press the pressure plate downward to drive the positioning rod to move down and insert it into the positioning hole. At this time, the movable lower template is locked by the positioning rod and cannot move.

[0006] Preferably, the smearing device includes a roller, a rotating rod, a limiting clamping ring, and a mounting frame, the rotating rod is arranged below the upper mold seat, the rotating roller is fixedly connected to the circumferential surface of the rotating rod, the limiting clamping ring is fixedly connected to the upper and lower ends of the circumferential surface of the rotating rod, and the mounting frame is fixedly connected to the inner surface of the bottom of the casting table, the smearing device also includes a slide shaft, a transmission sleeve, a connecting ring, a connecting rod, and a collar, the slide shaft is rotatably connected to the inner wall of the top end of the mounting frame, the transmission sleeve is slidably connected to the inner surface of the slide shaft through a spline, the connecting ring is fixedly connected to the upper and lower sides of the circumferential surface of the transmission sleeve, the connecting rod is fixedly connected to the circumferential surface of the connecting ring, the collar is fixedly connected to the end of the connecting rod away from the connecting ring, the inner surface of the mounting frame is fixedly connected with a motor, the motor is fixedly connected to the bottom end of the slide shaft through an output shaft, the rotating rod and the inner surface of the collar are rotatably connected, the rotating roller and the inner wall of the side mold seat are in contact with each other, a spring is arranged between the top surface of the inner wall of the transmission sleeve and the top of the slide shaft, and before starting casting, the release agent is sprayed Apply it to the inner wall of the side mold seat, and then start the linear motor. The linear motor drives the left and right side mold seats to separate, so that the wheel hub embryo is separated from the side mold seat. Start the motor, and the motor drives the slide shaft to rotate through the output shaft. The slide shaft drives the transmission sleeve to rotate through the spline. The transmission sleeve drives the connecting ring to rotate. The connecting ring drives the connecting rod to rotate along the circumference of the transmission sleeve axis. The connecting rod then drives the rotating rod to rotate through the sleeve ring. The rotating rod drives the circumference of the roller to rotate. After the roller contacts the inner wall of the side mold seat, apply the release agent evenly. The slight friction generated by the contact between the roller and the inner wall of the side die seat causes the roller and the rotating rod to rotate in the sleeve ring. The die-casting machine drives the pressure plate and the upper die seat to move downward. After the upper die seat contacts the transmission sleeve, it pushes it to move downward. When the transmission sleeve moves downward, it drives the sleeve ring downward through the connecting ring and the connecting rod. The sleeve then drives the rotating rod and the roller downward through the limiting clamp ring, and finally moves to the outside of the mold. When the die-casting machine drives the pressure plate and the upper die seat to move upward, the elastic return action of the spring lifts the transmission sleeve, and the movable lower template is pulled out of the clamp frame at this time.

[0007] Preferably, the oscillation device includes a movable slide groove, a slide rod, an upper contact ring, a lower contact ring, an oscillation plate, a screw, and a nut. The movable slide groove is opened on both sides of the casting table, the slide rod is slidably connected to the inner surface of the movable slide groove, the upper contact ring is fixedly connected to the circumferential surface of the slide rod, the lower contact ring is fixedly connected to the circumferential surface of the slide rod, the oscillation plate is clamped on the circumferential surface of the slide rod, the screw is fixedly connected to the top of the slide rod, and the nut is threadedly connected to the circumferential surface of the screw. The oscillation device also includes an L-shaped connecting plate, an elastic telescopic rod, a connecting slide plate, a transmission push rod, a transmission arc plate, and a cam. The L-shaped connecting plate is fixedly connected to the casting table On both sides of the inner surface, the elastic telescopic rod is fixedly connected to the side of the L-shaped connecting plate close to the sliding groove rotating shaft, the connecting slide plate is fixedly connected to the end of the elastic telescopic rod close to the sliding groove rotating shaft, the transmission push rod is fixedly connected to the side of the connecting slide plate away from the elastic telescopic rod, the transmission arc plate is fixedly connected to the end of the transmission push rod away from the connecting slide plate, the cam is fixedly connected to the circumferential surface of the transmission sleeve, the screw rod passes through the top surface of the oscillation plate from the inner wall of the oscillation plate, the bottom surface of the nut and the top surface of the oscillation plate are in contact with each other, the top surface of the upper resistance ring and the bottom surface of the oscillation plate are in contact with each other, and the bottom surface of the lower resistance ring is in contact with the upper surface of the casting table The bottom surface of the connecting slide plate and the bottom upper surface of the L-shaped connecting plate are in contact with each other, and the upper surface of the transmission push rod is fixedly connected to the bottom end of the slide rod. During the cooling of the aluminum liquid, the slide rod is pushed to slide back and forth in the movable slide groove, and the slide rod drives the oscillation plate to move back and forth, so that the oscillation plate knocks the mold base on the opposite side, and the bubbles generated when the aluminum liquid is cooled are broken, and the nut is twisted to make the nut disengage from the screw rod, and then the oscillation plate is disengaged from the limit of the nut. At this time, the oscillation plate can be lifted up and quickly removed from the slide rod, and vice versa, the oscillation plate can be quickly installed on the slide rod, and the upper mold base pushes the transmission sleeve to move downward, and the transmission sleeve The cam is driven to move downward, so that the cam moves to between the left and right transmission arc plates. At the same time, the rotation of the transmission sleeve can drive the cam to rotate. When the cam rotates, it pushes the transmission arc plate to move to the side away from the transmission sleeve, and the transmission arc plate drives the transmission push rod to move, and the transmission push rod drives the sliding rod to move, and the sliding rod drives the oscillation plate to move to the side away from the side mold base. Then the elastic reset effect of the elastic telescopic rod pushes the connecting slide to move to the side close to the transmission sleeve, and the connecting slide drives the transmission push rod to approach the transmission sleeve, and the transmission push rod drives the oscillation plate to approach the side mold base through the sliding rod, so that the oscillation plate moves back and forth left and right to knock the side mold base.

[0008] The present invention adopts the above technical solution to bring the following beneficial effects: 1. In the low-temperature casting device for automobile aluminum alloy wheel hub, the movable clamping block cannot be fixed on the pressure plate after losing the locking pin, so that the upper die seat can be quickly disassembled, and then the upper die seat of different diameters can be replaced according to the inner diameter of the wheel hub to be cast. The upper die seat can be quickly installed on the pressure plate by pushing the latch to insert the latch into the movable clamping block, which not only improves the applicability of the device, but also improves the convenience of use. Pulling the movable lower template from the clamping frame in advance can avoid the wheel hub embryo and the movable lower template from sticking, resulting in the upper die seat being unable to lift the wheel hub embryo and reducing the processing efficiency. The movable lower template is locked by the positioning rod and cannot move, which avoids the displacement of the movable lower template during casting and causing leakage.

[0009] 2. In the low-temperature casting device for automobile aluminum alloy wheel hub, the release agent adhered to the inner wall of the side mold seat can prevent the wheel hub embryo from sticking to the side mold seat, resulting in difficulty in demolding, or forced demolding causing damage to the wheel hub embryo. After the roller contacts the inner wall of the side mold seat, the release agent is evenly applied, further improving the demolding effect. The roller and the rotating rod rotate in the ring to prevent only one side of the roller from contacting the inner wall of the side mold seat to wipe off the release agent, thereby promoting the effect of uniform application. The movable lower mold plate is pulled out of the frame, and the application device can be moved between the two side mold seats without manual disassembly or movement, thereby improving ease of use.

[0010] 3. The low-temperature casting device for automobile aluminum alloy wheel hub uses an oscillation plate to knock on the side mold base to break the bubbles generated when the aluminum liquid is cooled, avoiding the formation of pores on the wheel hub embryo after cooling, thereby improving the quality of wheel hub casting. The oscillation plate can be lifted up and quickly removed from the slide bar, and vice versa, the oscillation plate can be quickly installed on the slide bar, so that the staff can quickly replace the oscillation plate, which improves the convenience of use. The oscillation plate moves back and forth left and right to knock on the side mold base, so that the device can automatically knock on the side mold base at a uniform speed, which improves the convenience of use and the effect of eliminating bubbles, and further improves the quality of the wheel hub embryo after molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the three-dimensional overall structure of the present invention; Figure 2 It is a schematic diagram of the front side cross-sectional three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the front side cross-sectional three-dimensional structure of the support frame of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the side bottom section of the side mold base of the present invention; Figure 5 It is a schematic diagram of the front side cross-sectional three-dimensional structure of the coating device of the present invention; Figure 6 For the present invention Figure 5 A is a schematic diagram of the enlarged structure of the middle part; Figure 7It is a schematic diagram of the front side cross-sectional three-dimensional structure of the oscillating device of the present invention; Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure of B.

[0012] In the figure: 1, casting table; 2, support frame; 3, die casting machine; 4, linear motor; 5, side mold seat; 6, pressure plate; 61, injection port; 62, fixed clamping block; 63, upper mold seat; 64, movable clamping block; 65, latch; 66, clamping frame; 67, movable lower mold plate; 68, adjustment slot; 69, positioning hole; 610, positioning rod; 7, smearing device; 71, roller; 72, rotating rod; 73, limit clamp ring; 74, mounting frame ; 75. slide shaft; 76. transmission sleeve; 77. connecting ring; 78. connecting rod; 79. sleeve; 8. oscillation device; 81. movable slide; 82. slide rod; 83. upper resistance ring; 84. lower resistance ring; 85. oscillation plate; 86. screw; 87. nut; 88. L-shaped connecting plate; 89. elastic telescopic rod; 810. connecting slide plate; 811. transmission push rod; 812. transmission arc plate; 813. cam. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0014] See also Figure 1-Figure 8One embodiment of the present invention is: a low-temperature casting device for an automobile aluminum alloy wheel hub, comprising a casting table 1, a support frame 2 is fixedly connected to the upper surface of the casting table 1, a die-casting machine 3 is fixedly connected to the upper surface of the support frame 2, a linear motor 4 is fixedly connected to the upper surface of the casting table 1, a clamping frame 66 is fixedly connected to the moving end of the linear motor 4, a side mold seat 5 is fixedly connected to the upper surface of the clamping frame 66, a pressure plate 6 is fixedly connected to the output end of the die-casting machine 3, a liquid injection port 61 is opened on the inner side of the pressure plate 6, and the upper surface of the pressure plate 6 is fixedly connected There is a fixed block 62, the inner surface of the fixed block 62 is slidably connected with a latch 65, the circumferential surface of the latch 65 is clamped with a movable block 64, the lower surface of the movable block 64 is fixedly connected with an upper die seat 63, the inner surface of the card frame 66 is slidably connected with a movable lower template 67, the inner side of the movable lower template 67 is provided with an adjustment groove 68, the inner side of the movable lower template 67 is provided with a positioning hole 69, the lower surface of the pressing plate 6 is fixedly connected with a positioning rod 610, and the movable block 64 cannot continue to be fixed on the pressing plate 6 after losing the locking of the latch 65. , so that the upper die seat 63 can be quickly disassembled, and then the upper die seat 63 of different diameters can be replaced according to the inner diameter of the wheel hub to be cast, and the latch 65 is pushed to insert the latch 65 into the movable block 64, so that the upper die seat 63 can be quickly installed on the pressing plate 6, which not only improves the applicability of the device, but also improves the convenience of use. A coating device 7 for coating the inner wall of the mold with a release agent is provided below the support frame 2, and an oscillation device 8 for preventing bubbles from being generated during the cooling process of the aluminum liquid is provided below the support frame 2. The output end of the die-casting machine 3 is from The upper surface of the support frame 2 passes through the lower surface of the top of the support frame 2, and the movable clamping block 64 passes through the upper surface of the pressing plate 6 from the lower surface of the pressing plate 6. The upper surface of the movable lower template 67 and the lower surface of the side mold seat 5 are in contact with each other. Pulling the movable lower template 67 out of the clamping frame 66 in advance can avoid the hub embryo from sticking to the movable lower template 67, resulting in the upper mold seat 63 being unable to lift the hub embryo and reducing the processing efficiency. The movable lower template 67 is locked by the positioning rod 610 and cannot move, which avoids the displacement of the movable lower template 67 during casting and causes leakage.

[0015] Working principle: start the linear motor 4, the linear motor 4 drives the left and right side mold seats 5 to approach each other and merge, after the side mold seats 5 merge, start the die-casting machine 3, the die-casting machine 3 drives the pressure plate 6 to press down, the pressure plate 6 drives the upper mold seat 63 to press down, when the pressure plate 6 is against the top of the side mold seat 5, the aluminum liquid is injected into the mold through the injection port 61, and the casting of the wheel hub embryo is completed after the aluminum liquid is cooled. When it is necessary to cast wheels with different inner diameters, pull the pin 65 to disengage the pin 65 from the movable block 64. The movable block 64 cannot continue to be fixed on the pressure plate 6 after losing the locking of the pin 65, so that the upper mold seat 63 can be quickly disassembled, and then the upper mold seat 63 of different diameters is replaced according to the inner diameter of the wheel hub to be cast. After the top surface of the upper mold seat 63 is fitted with the lower surface of the pressure plate 6, the movable block 64 is inserted into the pressure plate 6 and fixed. The block 62 is aligned, and at this time, the pin 65 is pushed so that the pin 65 is inserted into the movable block 64, so that the upper die seat 63 can be quickly installed on the pressure plate 6, which not only improves the applicability of the device, but also improves the convenience of use. During demolding, the die-casting machine 3 drives the pressure plate 6 and the upper die seat 63 to rise, and the wheel hub embryo is first driven by the upper die seat 63 to separate from the side die seat 5 and the movable lower template 67. Pulling the movable lower template 67 out of the card frame 66 in advance can avoid the wheel hub embryo and the movable lower template 67 from sticking, resulting in the upper die seat 63 being unable to lift the wheel hub embryo and reducing the processing efficiency. During casting, the left and right movable lower templates 67 are first fitted together, and the pressure plate 6 is pressed down to drive the positioning rod 610 to move down and insert it into the positioning hole 69. At this time, the movable lower template 67 is locked by the positioning rod 610 and cannot move, which avoids the displacement of the movable lower template 67 during casting and causes leakage.

[0016] See also Figure 1-Figure 8On the basis of the above embodiment, in another embodiment of the present invention, the smearing device 7 includes a roller 71, a rotating rod 72, a limiting clamping ring 73, and a mounting frame 74. The rotating rod 72 is arranged below the upper mold base 63, and the roller 71 is fixedly connected to the circumferential surface of the rotating rod 72. The limiting clamping ring 73 is fixedly connected to the upper and lower ends of the circumferential surface of the rotating rod 72. The mounting frame 74 is fixedly connected to the inner surface of the bottom of the casting table 1. The demoulding agent adhered to the inner wall of the side mold base 5 can prevent the wheel hub embryo from sticking to the side mold base 5, resulting in difficulty in demoulding, or forced demoulding causing damage to the wheel hub embryo. After the rotating roller 71 contacts the inner wall of the side mold base 5, the demoulding agent is evenly applied, which further improves the demoulding effect. The smearing device 7 also includes a slide shaft 75, a transmission sleeve 76, a connecting ring 77, a connecting rod 78, and a collar 79. The slide shaft 75 is rotatably connected to the inner wall of the top of the mounting frame 74, and the transmission sleeve 76 is slidably connected to the The cam 77 is fixedly connected to the upper and lower sides of the circumference of the transmission sleeve 76, and the connecting rod 78 is fixedly connected to the circumference of the connecting ring 77. The sleeve ring 79 is fixedly connected to the end of the connecting rod 78 away from the connecting ring 77. The inner surface of the mounting bracket 74 is fixedly connected to the motor. The motor is fixedly connected to the bottom end of the chute chute chute chute shaft 75 through the output shaft. The rotating rod 72 and the inner surface of the sleeve ring 79 are rotatably connected. The roller 71 and the inner wall of the side mold seat 5 contact each other. A spring is provided between the top surface of the inner wall of the transmission sleeve 76 and the top of the chute chute chute shaft 75. The roller 71 and the rotating rod 72 rotate in the sleeve ring 79 to prevent only one side of the roller 71 from contacting the inner wall of the side mold seat 5 to wipe off the release agent, thereby promoting the effect of uniform coating. The movable lower template 67 is pulled out of the card frame 66, and the coating device 7 can be moved between the two side mold seats 5 without manual disassembly or movement, thereby improving the convenience of use.

[0017] Working principle: before starting casting, spray the release agent onto the inner wall of the side mold seat 5, and then start the linear motor 4. The linear motor 4 drives the left and right side mold seats 5 to separate, so that the wheel hub embryo is separated from the side mold seat 5. The release agent adhered to the inner wall of the side mold seat 5 can prevent the wheel hub embryo from sticking to the side mold seat 5, resulting in difficulty in demoulding, or forced demoulding causing damage to the wheel hub embryo. Start the motor, and the motor drives the slide shaft 75 to rotate through the output shaft. The slide shaft 75 drives the transmission sleeve 76 to rotate through the spline. The transmission sleeve 76 drives the connecting ring 77 to rotate. The connecting ring 77 drives the connecting rod 78 to rotate along the circumference of the axis of the transmission sleeve 76. The connecting rod 78 then drives the rotating rod 72 to rotate in a circle through the collar 79. The rotating rod 72 drives the circumferential surface of the roller 71 to rotate. After the roller 71 contacts the inner wall of the side mold seat 5, the release agent is evenly applied, which further improves the demoulding effect. The roller 71 and the side The slight friction force generated by the contact with the inner wall of the die base 5 causes the roller 71 and the rotating rod 72 to rotate in the sleeve ring 79, preventing only one side of the roller 71 from contacting the inner wall of the side die base 5 to wipe off the mold release agent, thereby promoting the effect of uniform coating. The die-casting machine 3 drives the pressure plate 6 and the upper die base 63 to move downward. After the upper die base 63 contacts the transmission sleeve 76, it pushes it to move downward. When the transmission sleeve 76 moves downward, it drives the sleeve 79 to move downward through the connecting ring 77 and the connecting rod 78. The sleeve 79 then drives the rotating rod 72 and the roller 71 to move downward through the limiting clamping ring 73, and finally moves to the outside of the mold. When the die-casting machine 3 drives the pressure plate 6 and the upper die base 63 to move upward, the elastic return action of the spring lifts the transmission sleeve 76. At this time, the movable lower template 67 is pulled out of the card frame 66, and the coating device 7 can be moved between the two side die bases 5 without manual disassembly or movement, thereby improving the convenience of use.

[0018] See also Figure 1-Figure 8On the basis of the above embodiment, in another embodiment of the present invention, the oscillating device 8 includes a movable slide groove 81, a slide rod 82, an upper contact ring 83, a lower contact ring 84, an oscillating plate 85, a screw 86, and a nut 87. The movable slide groove 81 is opened on both sides of the casting table 1, the slide rod 82 is slidably connected to the inner surface of the movable slide groove 81, the upper contact ring 83 is fixedly connected to the circumferential surface of the slide rod 82, the lower contact ring 84 is fixedly connected to the circumferential surface of the slide rod 82, the oscillating plate 85 is clamped on the circumferential surface of the slide rod 82, the screw 86 is fixedly connected to the top of the slide rod 82, and the nut 87 is threadedly connected to the screw 86. The circumferential surface, the oscillation plate 85 knocks the side mold base 5 to break the bubbles generated when the aluminum liquid is cooled, avoid the formation of pores on the wheel hub embryo after cooling, and improve the casting quality of the wheel hub. The oscillation plate 85 is lifted up and quickly removed from the slide bar 82. Conversely, the oscillation plate 85 can be quickly installed on the slide bar 82, so that the staff can quickly replace the oscillation plate 85, which improves the convenience of use. The oscillation device 8 also includes an L-shaped connecting plate 88, an elastic telescopic rod 89, a connecting slide plate 810, a transmission push rod 811, a transmission arc plate 812, and a cam 813. The L-shaped connecting plate 88 The connecting plate 88 is fixedly connected to both sides of the inner surface of the casting table 1, the elastic telescopic rod 89 is fixedly connected to the side of the L-shaped connecting plate 88 close to the sliding groove rotating shaft 75, the connecting slide plate 810 is fixedly connected to the end of the elastic telescopic rod 89 close to the sliding groove rotating shaft 75, the transmission push rod 811 is fixedly connected to the side of the connecting slide plate 810 away from the elastic telescopic rod 89, the transmission arc plate 812 is fixedly connected to the end of the transmission push rod 811 away from the connecting slide plate 810, the cam 813 is fixedly connected to the circumferential surface of the transmission sleeve 76, the screw 86 penetrates from the inner wall of the oscillation plate 85 to the top surface of the oscillation plate 85, and the nut 8 The bottom surface of 7 and the top surface of the oscillation plate 85 are in contact with each other, the top surface of the upper contact ring 83 and the bottom surface of the oscillation plate 85 are in contact with each other, the bottom surface of the lower contact ring 84 and the upper surface of the casting table 1 are in contact with each other, the bottom surface of the connecting slide plate 810 and the bottom upper surface of the L-shaped connecting plate 88 are in contact with each other, the upper surface of the transmission push rod 811 and the bottom end of the slide bar 82 are fixedly connected, and the oscillation plate 85 reciprocates left and right to knock on the side mold base 5, so that the device can automatically knock on the side mold base 5 at a uniform speed, which improves the convenience of use and the effect of eliminating bubbles, and further improves the quality of the wheel hub embryo after molding.

[0019] Working principle: During the cooling of the aluminum liquid, the slide bar 82 is pushed to slide back and forth in the movable slide groove 81, and the slide bar 82 drives the oscillation plate 85 to move back and forth, so that the oscillation plate 85 knocks on the side mold base 5, and the bubbles generated when the aluminum liquid is cooled are broken, so as to avoid the formation of pores on the wheel hub embryo after the cooling is completed, thereby improving the casting quality of the wheel hub. The nut 87 is twisted to disengage the nut 87 from the screw rod 86, and then the oscillation plate 85 is disengaged from the limit of the nut 87. At this time, the oscillation plate 85 can be lifted up and quickly removed from the slide bar 82. Conversely, the oscillation plate 85 can be quickly installed on the slide bar 82, so that the staff can quickly replace the oscillation plate 85, thereby improving the convenience of use. The upper mold base 63 pushes the transmission sleeve 76 to move downward, and the transmission sleeve 76 drives the cam 813 to move downward, so that the cam 813 moves between the left and right transmission arc plates 812. At the same time, the rotation of the transmission sleeve 76 can drive the cam 813 to rotate. When the cam 813 rotates, it pushes the transmission arc plate 812 to move to the side away from the transmission sleeve 76. The transmission arc plate 812 drives the transmission push rod 811 to move. The transmission push rod 811 drives the slide bar 82 to move. The slide bar 82 then drives the oscillation plate 85 to move to the side away from the side mold seat 5. Then the elastic reset effect of the elastic telescopic rod 89 pushes the connecting slide plate 810 to move to the side close to the transmission sleeve 76. The connecting slide plate 810 drives the transmission push rod 811 to approach the transmission sleeve 76. The transmission push rod 811 then drives the oscillation plate 85 to approach the side mold seat 5 through the slide bar 82, so that the oscillation plate 85 moves back and forth left and right to knock on the side mold seat 5, so that the device can automatically knock on the side mold seat 5 at a uniform speed, which improves the convenience of use and the effect of eliminating bubbles, and further improves the quality of the wheel hub embryo after molding.

[0020] The present invention provides a low temperature casting device for automobile aluminum alloy wheel hub. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A low temperature casting device for automobile aluminum alloy wheels, comprising a casting table (1), characterized in that: The upper surface of the casting table (1) is fixedly connected to a support frame (2), the upper surface of the support frame (2) is fixedly connected to a die-casting machine (3), the upper surface of the casting table (1) is fixedly connected to a linear motor (4), the movable end of the linear motor (4) is fixedly connected to a clamping frame (66), the upper surface of the clamping frame (66) is fixedly connected to a side mold base (5), the output end of the die-casting machine (3) is fixedly connected to a pressing plate (6), the inner side of the pressing plate (6) is provided with a liquid injection port (61), and the upper surface of the pressing plate (6) is fixedly connected to a fixed clamping frame (66). A block (62), the inner surface of the fixed block (62) is slidably connected to a latch (65), the circumferential surface of the latch (65) is clamped with a movable block (64), the lower surface of the movable block (64) is fixedly connected to an upper die seat (63), the inner surface of the clamping frame (66) is slidably connected to a movable lower template (67), an adjustment groove (68) is provided on the inner side of the movable lower template (67), a positioning hole (69) is provided on the inner side of the movable lower template (67), and the lower surface of the pressing plate (6) is fixedly connected to a positioning rod (610); A coating device (7) for coating the inner wall of the mold with a mold release agent is provided below the support frame (2), and an oscillation device (8) for preventing bubbles from being generated during the cooling process of the aluminum liquid is provided below the support frame (2).

2. The low temperature casting device for automobile aluminum alloy wheel hub according to claim 1, characterized in that: The output end of the die-casting machine (3) passes through the lower surface of the top of the support frame (2) from the upper surface of the support frame (2), the movable clamping block (64) passes through the upper surface of the pressure plate (6) from the lower surface of the pressure plate (6), and the upper surface of the movable lower mold plate (67) and the lower surface of the side mold base (5) are in contact with each other.

3. The low temperature casting device for automobile aluminum alloy wheel hub according to claim 2, characterized in that: The smearing device (7) comprises a rotating roller (71), a rotating rod (72), a limiting clamping ring (73), and a mounting frame (74); the rotating rod (72) is arranged below the upper die seat (63); the rotating roller (71) is fixedly connected to the circumferential surface of the rotating rod (72); the limiting clamping ring (73) is fixedly connected to the upper and lower ends of the circumferential surface of the rotating rod (72); and the mounting frame (74) is fixedly connected to the inner surface of the bottom of the casting table (1).

4. The low temperature casting device for automobile aluminum alloy wheel hub according to claim 3 is characterized in that: The smearing device (7) further comprises a slide groove rotating shaft (75), a transmission sleeve (76), a connecting ring (77), a connecting rod (78), and a sleeve ring (79); the slide groove rotating shaft (75) is rotatably connected to the inner wall of the top end of the mounting frame (74); the transmission sleeve (76) is slidably connected to the inner surface of the slide groove rotating shaft (75) via a spline; the connecting ring (77) is fixedly connected to the upper and lower sides of the circumferential surface of the transmission sleeve (76); the connecting rod (78) is fixedly connected to the circumferential surface of the connecting ring (77); and the sleeve ring (79) is fixedly connected to one end of the connecting rod (78) away from the connecting ring (77).

5. The low temperature casting device for automobile aluminum alloy wheel hub according to claim 4, characterized in that: A motor is fixedly connected to the inner surface of the mounting frame (74), and the motor is fixedly connected to the bottom end of the slide groove shaft (75) via an output shaft. The rotating rod (72) and the inner surface of the sleeve ring (79) are rotatably connected. The rotating roller (71) and the inner wall of the side mold base (5) are in contact with each other. A spring is provided between the top surface of the inner wall of the transmission sleeve (76) and the top end of the slide groove shaft (75).

6. The low temperature casting device for automobile aluminum alloy wheel hub according to claim 5, characterized in that: The oscillating device (8) comprises a movable slide groove (81), a slide rod (82), an upper contact ring (83), a lower contact ring (84), an oscillating plate (85), a screw rod (86), and a nut (87). The movable slide groove (81) is provided on both sides of the casting table (1), the slide rod (82) is slidably connected to the inner surface of the movable slide groove (81), the upper contact ring (83) is fixedly connected to the circumferential surface of the slide rod (82), the lower contact ring (84) is fixedly connected to the circumferential surface of the slide rod (82), the oscillating plate (85) is clamped on the circumferential surface of the slide rod (82), the screw rod (86) is fixedly connected to the top end of the slide rod (82), and the nut (87) is threadedly connected to the circumferential surface of the screw rod (86).

7. The low temperature casting device for automobile aluminum alloy wheel hub according to claim 6, characterized in that: The oscillation device (8) further comprises an L-shaped connecting plate (88), an elastic telescopic rod (89), a connecting slide plate (810), a transmission push rod (811), a transmission arc plate (812), and a cam (813). The L-shaped connecting plate (88) is fixedly connected to both sides of the inner surface of the casting table (1); the elastic telescopic rod (89) is fixedly connected to a side of the L-shaped connecting plate (88) close to the slide groove rotating shaft (75); the connecting slide plate (810) is fixedly connected to an end of the elastic telescopic rod (89) close to the slide groove rotating shaft (75); the transmission push rod (811) is fixedly connected to a side of the connecting slide plate (810) away from the elastic telescopic rod (89); the transmission arc plate (812) is fixedly connected to an end of the transmission push rod (811) away from the connecting slide plate (810); and the cam (813) is fixedly connected to the circumferential surface of the transmission sleeve (76).

8. The low temperature casting device for automobile aluminum alloy wheel hub according to claim 7, characterized in that: The screw rod (86) passes through the inner wall of the oscillating plate (85) and exits the top surface of the oscillating plate (85); the bottom surface of the nut (87) and the top surface of the oscillating plate (85) are in contact with each other; the top surface of the upper abutment ring (83) and the bottom surface of the oscillating plate (85) are in contact with each other; the bottom surface of the lower abutment ring (84) and the upper surface of the casting table (1) are in contact with each other; the bottom surface of the connecting slide plate (810) and the upper surface of the bottom of the L-shaped connecting plate (88) are in contact with each other; and the upper surface of the transmission push rod (811) and the bottom end of the slide rod (82) are fixedly connected.

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