An aluminum alloy die-casting multi-angle polishing device

Abstract

The present invention relates to the technical field of industrial polishing equipment, and particularly relates to a multi-angle polishing equipment for aluminum alloy die-castings. By designing a new stirring unit and a collecting unit, and setting the polishing cylinder as an inner and outer double cylinder, the waste liquid after polishing is thrown into the collecting box through the filter screen of the inner polishing cylinder by centrifugal force, so as to separate the waste liquid after polishing from the polishing abrasive, solving the problem that the traditional device cannot quickly separate the polishing abrasive from the impurity waste liquid. At the same time, by setting sliders, slide rails and movable plates on the inner polishing cylinder, the polished aluminum alloy die-castings are lifted out of the waste liquid by driving the sliding plate to move up and down by the sliders. At the same time, a heating device is fixedly installed on the stirring rod, which can realize the drying effect of the polished aluminum alloy workpieces, solving the problems of inconvenient taking out due to the large volume of the device and inability to automatically dry.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial polishing equipment, and particularly relates to a multi-angle polishing equipment for aluminum alloy die-castings. Background Art

[0002] With the improvement of people's living standards, more and more scientific and technological products have emerged in life. The manufacturing of these scientific and technological products is inseparable from aluminum alloy die-castings. Aluminum alloy die-castings are mainly used in the fields of electronics, automobiles, motors, household appliances, and some communication industries. Some high-quality aluminum alloy products with high performance, high precision, and high toughness are also used in industries with relatively high requirements such as large aircraft and ships. The main use is still for parts of some instruments.

[0003] The most important part of aluminum alloy die-castings is polishing. Polishing refers to a processing method that uses mechanical, chemical, or electrochemical actions to reduce the surface roughness of a workpiece to obtain a bright and flat surface. It is a finishing process that uses a polishing tool and abrasive particles or other polishing media to process the surface of the workpiece. Polishing can remove various foreign objects, dirt, rust, etc. on the surface of the workpiece, playing a role in protecting the workpiece. At the same time, for workpieces with appearance requirements, polishing can make the workpiece obtain a smooth, flat, and bright surface. For some workpieces with certain requirements for the surface in subsequent processing, this also requires a polishing process.

[0004] Therefore, more and more polishing equipment has been produced by manufacturers. For example, Jiangsu Kele Metal Technology Co., Ltd. invented a high thermal conductivity aluminum alloy polishing equipment (Publication No.: CN110091243B, Publication Date: July 6, 2021). The equipment includes a workbench and a power chamber arranged inside the workbench. A slider is slidably connected in the power chamber. A limiting device is connected to the slider. A moving motor is fixedly arranged inside the slider. A transmission shaft extending leftward is fixedly arranged on the output shaft of the moving motor. A first steering bevel gear is fixedly arranged on the transmission shaft. A clamping device is meshed and connected to the upper end of the first steering bevel gear. A fixing mechanism is fixedly arranged on the clamping device. A gear connection chamber is arranged inside the left end wall of the power chamber. A second steering bevel gear is fixedly arranged at the left end of the transmission shaft. The function of clamping and fixing the polishing device that can be lifted is realized by relying on a single driving motor. However, this device cannot polish aluminum alloy die-castings with complex structures.

[0005] At the same time, Jiangsu Clyde Laser Technology Co., Ltd. invented a magnetorheological polishing device for metal surface treatment and its use method (publication number: CN114571293B publication date: 2022-07-29); the device includes an equipment body, a first telescopic cylinder is vertically provided in the equipment body, an X-axis adjustment component is provided below the first telescopic cylinder along the X-axis direction, the first telescopic cylinder is driven and adjusted in position by the X-axis adjustment component, and a rotatable grinding wheel is vertically connected to the top of the first telescopic cylinder through a first connecting component; in the device, the mirror surface to be processed is inverted so that the processed grinding wheel is under the mirror surface, and the debris generated during the polishing process can fall under the action of gravity to avoid being attached to the mirror surface again, and to avoid the debris being drawn into the area to be polished during mirror polishing, causing cracks on the mirror surface, thereby improving the mirror polishing effect;

[0006] While searching the above patents, it was also found that Liaoning University of Science and Technology invented a magnetic grinding and polishing method and device for the inner surface of thick-walled ceramic tubes (publication number: CN103624634B publication date: 2016-01-20). The device clamps the thick-walled ceramic tube on a three-jaw chuck; places two permanent magnets at both ends of the pole frame with NS or SN magnetic poles; prepares magnetic abrasives; adsorbs the prepared magnetic abrasives on the V-shaped magnet, and places the V-shaped magnet adsorbed with magnetic abrasives into the inside of the thick-walled ceramic tube; the magnetic grinding particles rub and squeeze each other on the inner surface of the ceramic tube body to achieve polishing of the inner surface. The device includes: a base, a variable speed motor, a cam, a connecting rod, a permanent magnet, a pole frame, a three-jaw chuck, a connecting shaft, a connecting shaft bearing, a speed regulating motor, a variable speed start switch, a speed regulating start switch, a mobile platform, a guide rail, a magnetic abrasive and a V-shaped magnet. The invention adopts linear reciprocating motion magnetic grinding processing and utilizes the flexibility of the magnetic grinding brush to perform high-precision grinding and polishing on the inner surface of the ceramic tube body.

[0007] However, in magnetic grinding and polishing, since the polishing abrasive is used to grind the workpiece to be polished in the liquid, impurities and polishing abrasive are mixed in the waste liquid after polishing is completed; the existing technology usually uses manual dumping and filtration to separate, which will result in low separation efficiency and unsatisfactory separation effect. At the same time, the polishing device cannot work during the separation process, which greatly affects the work efficiency.

[0008] At the same time, in the prior art, after polishing is completed, the workpiece is usually taken out of the polishing device manually. Some devices are very inconvenient to take out the workpiece due to their large volume and deep opening. At the same time, since the workpiece is taken out in the liquid, the workpiece needs to be manually dried after being taken out, which makes the polishing process extremely cumbersome and also wastes a lot of manpower and material resources.

[0009] Therefore, the present invention provides a multi-angle polishing device for aluminum alloy die-castings, which can solve the above problems. Summary of the Invention

[0010] The technical problem to be solved by the present invention is to provide a multi-angle polishing device for aluminum alloy die-castings. By designing a new stirring unit and a collecting unit, and setting the polishing cylinder as an inner and outer double cylinder, the waste liquid after polishing is thrown into the collecting box through the filter screen of the inner polishing cylinder by centrifugal force, so as to separate the waste liquid after polishing from the polishing abrasive, solving the problem that the traditional device cannot quickly separate the polishing abrasive from the impurity waste liquid. At the same time, by setting sliders, slide rails and movable plates on the inner polishing cylinder, the polished aluminum alloy die-castings are lifted out of the waste liquid by driving the sliding plate to move up and down by the sliders. At the same time, a heating device is fixedly installed on the stirring rod, which can realize the drying effect of the polished aluminum alloy workpieces, solving the problems of inconvenient taking out due to the large volume of the device and inability to automatically dry.

[0011] The present invention provides the following technical solutions: A multi-angle polishing device for aluminum alloy die-castings, including a bracket, a control unit, a polishing unit, a stirring unit and a collecting unit. The bracket is fixedly installed on the ground, the control unit is fixedly installed on the bracket, and a polishing unit is fixedly installed on the right side of the fixing unit. The polishing unit is used for polishing aluminum alloy die-castings; A stirring unit is coaxially and rotatably installed on the polishing unit, and the stirring unit is used for stirring after polishing; The collecting unit is coaxially and fixedly installed at the bottom of the polishing unit, and the collecting unit is used for collecting the waste water after polishing;

[0012] Preferably, the polishing unit includes a fixed chassis, an inner polishing cylinder, an outer polishing cylinder, a sealing ring, a first electromagnet and polishing abrasive. The fixed chassis is fixedly installed on the bracket, and the fixed chassis is used to fix the polishing unit on the bracket; The inner polishing cylinder is fixedly installed on the fixed chassis, and the inner polishing cylinder is used to hold the aluminum alloy die-castings to be polished; The outer polishing cylinder is coaxially and slidably installed on the inner polishing cylinder, and the outer polishing cylinder is used to stabilize the inner polishing cylinder; A sealing ring is fixedly installed at the connection between the outer polishing cylinder and the fixed chassis, and the sealing ring is used to prevent liquid from flowing out of the outer polishing cylinder; The first electromagnet is fixedly installed in the fixed chassis, and the electromagnet is used to generate a magnetic field to make the polishing abrasive move to achieve the polishing effect; The polishing abrasive is placed in the inner polishing cylinder, and the polishing abrasive is used to move in the inner polishing cylinder to achieve the polishing effect.

[0013] Preferably, the stirring unit includes a motor housing, a stirring motor, a stirring rod, and stirring blades. The motor housing is fixedly installed at the bottom of the fixed chassis and is used to protect the stirring motor. The stirring motor is fixedly installed inside the motor housing and is used to provide power to the stirring unit. The output shaft of the stirring motor passes through the fixed chassis and is fixedly connected to the stirring rod, which is used to drive the stirring blades to rotate. The stirring blades are fixedly installed on the stirring rod in an array and are used to stir the waste liquid after polishing.

[0014] Preferably, the collection unit includes a collection chassis and a collection barrel. The collection chassis is coaxially and fixedly installed at the bottom of the fixed chassis and is used to support the collection barrel. The shape of the collection chassis is frustum-shaped, and the frustum-shaped collection chassis facilitates the flow of waste liquid into the collection barrel. The collection barrel is coaxially and fixedly installed on the collection chassis and is used to collect the waste liquid.

[0015] Preferably, a plurality of filter holes are arrayed at one end of the polishing inner cylinder. The filter holes are used to allow the waste liquid during stirring to flow from the filter holes into the collection barrel. After the aluminum alloy die-casting is polished, the workers take out the aluminum alloy die-casting. At this time, the control unit controls the stirring motor to be powered on. After the stirring motor is powered on, it rotates. The rotation of the stirring motor drives the stirring rod to rotate, and the rotation of the stirring rod drives the stirring blades to rotate. The rotating stirring blades drive the waste liquid in the polishing inner cylinder to rotate, and the rotating waste liquid is thrown out under the action of centrifugal force. The thrown-out waste liquid flows through the filter holes into the collection barrel, and the filter cylinder can also prevent the polishing abrasive from flowing into the collection barrel.

[0016] Preferably, a plurality of telescopic rods are fixedly installed in the polishing outer cylinder in an array. The output end of the telescopic rod is fixedly connected to the fixed chassis. The telescopic rod is used to jack up the sliding inner cylinder so that the waste liquid stirred out by the stirring unit can flow from the filter holes into the collection barrel.

[0017] After the aluminum alloy die-casting is polished, at this time, the staff cuts off the power supply of the first electromagnet through the control unit. After the first electromagnet is powered off, the polishing unit stops polishing. After the staff takes out the polished aluminum alloy die-casting, the control unit controls the telescopic rod to extend. Since the top end of the telescopic rod is fixedly connected, under the action of the force, the polishing outer cylinder moves upward, that is, the polishing inner cylinder slides upward to expose the filter holes to communicate with the collection barrel. At this time, the stirring unit starts to stir, and the waste liquid and the impurities after polishing and grinding are thrown into the collection barrel through the filter holes for collection.

[0018] Preferably, a second electromagnet is fixedly installed inside the stirring blade. The second electromagnet is used to generate magnetic force when powered on to adsorb the polishing abrasive on the stirring blade.

[0019] Since the polishing abrasive is still in the polishing inner cylinder when the stirring unit is stirring, after the polishing of the aluminum alloy die-castings is completed, at this time, the staff cuts off the power supply of the first electromagnet through the control unit. After the power supply of the first electromagnet is cut off, the polishing unit stops polishing. After the staff takes out the polished aluminum alloy die-castings, the control unit controls the second electromagnet to be energized. After being energized, the stirring blades adsorb the polishing abrasive on the stirring blades. At this time, the control unit controls the stirring unit to start rotating. Since the polishing abrasive is light in volume, it can still be firmly adsorbed on the stirring blades during the rotation of the stirring blades. A small part of the polishing abrasive that is thrown out will still stay in the polishing inner cylinder due to the blockage of the filter holes. In this way, the separation between the polishing abrasive and the impurities after polishing is achieved, which can enable the staff to carry out the next polishing work faster and also increase the service life of the polishing abrasive.

[0020] Preferably, sliding rails are arrayed and opened in the polishing inner cylinder, and the sliding rails are used for the sliders to slide; sliders are arrayed and slidably installed on the sliding rails, and the sliders are used to slide and drive the movable plate to slide; one end of the slider is fixedly connected to the movable plate, and the movable plate is coaxially arrayed and slidably installed in the polishing inner cylinder, and the movable plate is used to slide and drive the aluminum alloy die-casting to slide upward; a heating device is fixedly installed at the top of the polishing inner cylinder, and the heating device is used to dry the polished aluminum alloy die-castings.

[0021] Preferably, the material of the movable plate is glass fiber reinforced plastic. The movable plate is made of plastic to avoid the influence of the first electromagnet and the second electromagnet on the movement of the movable plate; at the same time, glass fiber reinforced plastic is based on the original pure plastic, adding glass fiber and other additives. Glass fiber is a high-temperature resistant material. Therefore, the heat-resistant temperature of the reinforced plastic is much higher than that before adding glass fiber, especially for nylon plastics. At the same time, due to the addition of glass fiber, the mutual movement between the polymer chains of the plastic is restricted. Therefore, the shrinkage rate of the reinforced plastic drops a lot, and the rigidity is also greatly improved. Thus, the strength of the plastic is also greatly improved, such as tensile strength, compressive strength, and bending strength; therefore, using glass fiber reinforced plastic can perfectly meet the requirements of the movable plate.

[0022] Preferably, the shape of the polishing abrasive is spherical, triangular or cylindrical; spherical polishing abrasives are suitable for flat products and are not likely to cause scratches and damage to the products; triangular abrasives are suitable for products with angles and grooves because circular abrasives cannot be used to polish such products; cylindrical abrasives are suitable for workpieces that need to be polished to a high brightness.

[0023] The beneficial effects of the present invention are as follows:

[0024] 1. The present invention designs a new stirring unit and a collection unit, and sets the polishing cylinder as an inner and outer double cylinder at the same time. The waste liquid after polishing is thrown into the collection box through the filter screen of the inner polishing cylinder by centrifugal force, so as to separate the waste liquid after polishing from the polishing abrasive, improving the working efficiency of the device and also prolonging the service life of the polishing abrasive.

[0025] 2. The present invention sets sliders, slide rails and movable plates on the inner polishing cylinder. The polished aluminum alloy die-castings are lifted out of the waste liquid by driving the sliding plate to move up and down by the sliders. At the same time, a heating device is fixedly installed on the stirring rod, which can dry the polished aluminum alloy workpieces, greatly increasing the working efficiency of the polishing device and also saving a lot of manpower and material resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 is the overall schematic diagram of the present invention;

[0028] Figure 2 is the schematic diagram of the polishing unit of the present invention;

[0029] Figure 3 is the schematic diagram of the fixed chassis of the present invention;

[0030] Figure 4 is the schematic diagram of the stirring unit of the present invention;

[0031] Figure 5 is the schematic diagram of the collection unit of the present invention;

[0032] Figure 6 is the schematic diagram of the inner polishing cylinder of the present invention;

[0033] Figure 7 is the schematic diagram of the telescopic rod of the present invention;

[0034] Figure 8 is the schematic diagram of the second electromagnet of the present invention;

[0035] Figure 9 is the schematic diagram of the slide rail and the slider of the present invention;

[0036] Figure 10 is the schematic diagram when the slider and the movable plate of the present invention are not working;

[0037] Figure 11Schematic diagram of the slider and the movable plate during the operation of the present invention;

[0038] Figure 12 Schematic diagram of the polishing abrasive of the present invention.

[0039] In the figure: bracket 1, control unit 2, polishing unit 3, fixed chassis 31, polishing inner cylinder 32, filter holes 321, slide rail 322, slider 323, movable plate 324, heating device 325, polishing outer cylinder 33, telescopic rod 331, sealing ring 34, first electromagnet 35, polishing abrasive 36, stirring unit 4, motor housing 41, stirring motor 42, stirring rod 43, stirring blade 44, second electromagnet 441, collection unit 5, collection chassis 51, collection cylinder 52. Specific implementation mode

[0040] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the specification drawings and specific implementation modes.

[0041] In the prior art, magnetic abrasive polishing is mostly used for polishing aluminum alloy die-castings. However, after polishing, it is impossible to separate the impurities polished off and the polishing abrasive 36. Therefore, the polishing can be carried out in the way of Embodiment 1, which is specifically as follows:

[0042] Embodiment 1: As Figures 1 to 12 shown, an aluminum alloy die-casting multi-angle polishing device of the present invention includes a bracket 1, a control unit 2, a polishing unit 3, a stirring unit 4 and a collection unit 5. The bracket 1 is fixedly installed on the ground, the control unit 2 is fixedly installed on the bracket 1, and a polishing unit 3 is fixedly installed on the right side of the fixing unit. The polishing unit 3 is used for polishing aluminum alloy die-castings; a stirring unit 4 is coaxially and rotatably installed on the polishing unit 3, and the stirring unit 4 is used for stirring after polishing; the collection unit 5 is coaxially and fixedly installed at the bottom of the polishing unit 3, and the collection unit 5 is used for collecting the polished waste water;

[0043] The polishing unit 3 includes a fixed chassis 31, a polishing inner cylinder 32, a polishing outer cylinder 33, a sealing ring 34, a first electromagnet 35, and polishing abrasives 36. The fixed chassis 31 is fixedly installed on the bracket 1 and is used to fix the polishing unit 3 on the bracket 1. The polishing inner cylinder 32 is fixedly installed on the fixed chassis 31 and is used to hold the aluminum alloy die-casting to be polished. The polishing outer cylinder 33 is slidably installed coaxially on the polishing inner cylinder 32 and is used to stabilize the polishing inner cylinder 32. A sealing ring 34 is fixedly installed at the connection between the polishing outer cylinder 33 and the fixed chassis 31, and the sealing ring 34 is used to prevent liquid from flowing out of the polishing outer cylinder 33. A first electromagnet 35 is fixedly installed inside the fixed chassis 31, and the electromagnet is used to generate a magnetic field to make the polishing abrasives 36 move to achieve a polishing effect. The polishing abrasives 36 are placed inside the polishing inner cylinder 32 and are used to move inside the polishing inner cylinder 32 to achieve a polishing effect.

[0044] During operation, the worker puts the workpiece to be polished into the polishing unit 3. At this time, the worker turns on the switch, and the control unit 2 controls the electromagnet to be energized. After being energized, the electromagnet generates a magnetic field, and the polishing abrasives 36 rotate under the action of the magnetic field. The rotating polishing abrasives 36 will impact the workpiece to be polished, thereby achieving a polishing effect. After the polishing is completed, the control unit 2 controls the electromagnet to be de-energized, and at this time the polishing work stops.

[0045] Based on the above-mentioned Embodiment 1, as Figure 4 shown, the stirring unit 4 includes a motor housing 41, a stirring motor 42, a stirring rod 43, and stirring blades 44. The motor housing 41 is fixedly installed at the bottom of the fixed chassis 31, and the motor housing 41 is used to protect the stirring motor 42. A stirring motor 42 is fixedly installed inside the motor housing 41, and the stirring motor 42 is used to provide power for the stirring unit 4. The output shaft of the stirring motor 42 passes through the fixed chassis 31 and is fixedly connected to the stirring rod 43, and the stirring rod 43 is used to drive the stirring blades 44 to rotate. Stirring blades 44 are fixedly installed in an array on the stirring rod 43, and the stirring blades 44 are used to stir the waste liquid after polishing.

[0046] During operation, after the aluminum alloy die-casting is polished, the workers take out the aluminum alloy die-casting. At this time, the control unit 2 controls the stirring motor 42 to be energized. After the stirring motor 42 is energized, it rotates. The rotation of the stirring motor 42 drives the stirring rod 43 to rotate, and the rotation of the stirring rod 43 drives the stirring blades 44 to rotate. The rotating stirring blades 44 drive the waste liquid in the polishing inner cylinder 32 to rotate, and the rotating waste liquid is thrown out under the action of centrifugal force.

[0047] Based on the above-mentioned Embodiment 1, as Figure 5As shown, the collection unit 5 includes a collection chassis 51 and a collection barrel 52. The collection chassis 51 is coaxially and fixedly installed at the bottom of the fixed chassis 31, and the collection chassis 51 is used to support the collection barrel. The collection chassis 51 is frustum-shaped, and the frustum-shaped collection chassis 51 facilitates the flow of waste liquid into the collection barrel. The collection barrel is coaxially and fixedly installed on the collection chassis 51, and the collection barrel is used to collect the waste liquid.

[0048] During operation, the stirring unit 4 throws the thrown-out waste liquid into the collection barrel. At the same time, there is also some waste liquid on the collection chassis 51. Therefore, designing the collection chassis 51 as a frustum shape can enable the waste liquid on the collection chassis 51 to flow into the collection barrel through the inclined side of the collection chassis 51, thereby collecting all the waste liquid.

[0049] Adopting the above collection method and cooperating with the stirring unit 4 can quickly separate the polished waste liquid from the polishing abrasive 36. Compared with the prior art method of manual pouring, the method of cooperating the stirring unit 4 with the collection unit 5 can remove the waste liquid from the polishing inner cylinder 32 faster and more completely, saving a large amount of manpower and material resources.

[0050] Based on the above Embodiment 1, as Figure 6 shown, one end of the polishing inner cylinder 32 is provided with filter holes 321 in an array. The filter holes 321 are used to allow the waste liquid in the stirring to flow from the filter holes 321 into the collection barrel. After the aluminum alloy die-casting is polished, the workers take out the aluminum alloy die-casting. At this time, the control unit 2 controls the stirring motor 42 to be powered on. After the stirring motor 42 is powered on, it rotates. The rotation of the stirring motor 42 drives the stirring rod 43 to rotate, and the rotation of the stirring rod 43 drives the stirring blade 44 to rotate. The rotating stirring blade 44 drives the waste liquid in the polishing inner cylinder 32 to rotate, and the rotating waste liquid is thrown out under the action of centrifugal force. The thrown-out waste liquid flows through the filter holes 321 into the collection barrel. At the same time, the filter cylinder can also prevent the polishing abrasive 36 from flowing into the collection barrel.

[0051] Based on the above Embodiment 1, as Figure 7 shown, telescopic rods 331 are fixedly installed in an array in the polishing outer cylinder 33. The output ends of the telescopic rods 331 are fixedly connected to the fixed chassis 31. The telescopic rods 331 are used to jack up the sliding inner cylinder, so as to facilitate the waste liquid stirred out by the stirring unit 4 to flow from the filter holes 321 into the collection barrel.

[0052] During operation, after the polishing of the aluminum alloy die-casting is completed, the operator cuts off the power supply of the first electromagnet 35 through the control unit 2. After the power supply of the first electromagnet 35 is cut off, the polishing unit 3 stops polishing. After the operator takes out the polished aluminum alloy die-casting, the control unit 2 controls the telescopic rod 331 to extend. Since the top of the telescopic rod 331 is fixedly connected, under the action of the force, the polishing outer cylinder 33 moves upward, that is, the polishing inner cylinder 32 slides upward to expose the filter holes 321, so that the filter holes 321 are communicated with the collection bucket. At this time, the stirring unit 4 starts to stir, and the waste liquid and the impurities after polishing and grinding are thrown into the collection cylinder 52 through the filter holes 321 for collection.

[0053] Based on the above Embodiment 1, as Figure 8 shown, a second electromagnet 441 is fixedly installed inside the stirring blade 44; the second electromagnet 441 is used to generate magnetic force after being energized to adsorb the polishing abrasive 36 on the stirring blade 44;

[0054] Since the polishing abrasive 36 is still in the polishing inner cylinder 32 when the stirring unit 4 stirs, after the polishing of the aluminum alloy die-casting is completed, the operator cuts off the power supply of the first electromagnet 35 through the control unit 2. After the power supply of the first electromagnet 35 is cut off, the polishing unit 3 stops polishing. After the operator takes out the polished aluminum alloy die-casting, the control unit 2 controls the second electromagnet 441 to be energized. After being energized, the stirring blade 44 adsorbs the polishing abrasive 36 on the stirring blade 44. At this time, the control unit 2 controls the stirring unit 4 to start rotating. Since the volume of the polishing abrasive 36 is relatively light, it can still be firmly adsorbed on the stirring blade 44 during the rotation of the stirring blade 44. A small part of the polishing abrasive 36 that is thrown out will still stay inside the polishing inner cylinder 32 due to the blockage of the filter holes 321. In this way, the separation between the polishing abrasive 36 and the impurities after polishing is realized, which enables the operator to carry out the next polishing work faster and also increases the service life of the polishing abrasive 36.

[0055] Based on the above Embodiment 1, as Figures 9 to 11 shown, slide rails 322 are arrayed and opened inside the polishing inner cylinder 32, and the slide rails 322 are used for the sliders 323 to slide; the sliders 323 are slidably installed on the slide rails 322 in an array, and the sliders 323 are used to drive the movable plate 324 to slide by sliding; one end of the slider 323 is fixedly connected to the movable plate 324, and the movable plate 324 is slidably installed coaxially and in an array inside the polishing inner cylinder 32. The movable plate 324 is used to drive the aluminum alloy die-casting to slide upward by sliding; a heating device 325 is fixedly installed at the top of the polishing inner cylinder 32, and the heating device 325 is used to dry the polished aluminum alloy die-casting;

[0056] During operation, after the aluminum alloy die-casting is polished, the control unit 2 controls the sliding motor (not shown in the figure) in the slider 323 to rotate, and the rotating sliding motor (not shown in the figure) drives the slider 323 to slide upward in the slide rail 322, and the upward sliding slider 323 drives the movable plate 324 to slide upward, and the upward sliding movable plate 324 drives the polished aluminum alloy die-casting and the polishing abrasive 36 to separate from the liquid. At this time, the control unit 2 controls the heating device 325 to start heating and drying. After the polished aluminum alloy die-casting is dried, the staff takes out the aluminum alloy die-casting. At this time, the control unit 2 rotates the sliding motor (not shown in the figure) in the slider 323, and the rotating sliding motor (not shown in the figure) drives the slider 323 to slide downward in the slide rail 322, and the downward sliding slider 323 drives the movable plate 324 to slide downward, and the movable plate 324 returns to its original position.

[0057] On the basis of the above-mentioned embodiment 1, Figures 9 to 11 As shown, the movable plate 324 is made of glass fiber reinforced plastic. The movable plate 324 is made of plastic material to prevent the first electromagnet 35 and the second electromagnet 441 from affecting the movement of the movable plate 324. At the same time, glass fiber reinforced plastic is based on the original pure plastic, with glass fiber and other additives added. Glass fiber is a high temperature resistant material. Therefore, the heat resistance temperature of reinforced plastic is much higher than that before without glass fiber, especially nylon plastic. At the same time, due to the addition of glass fiber, the mutual movement between the polymer chains of the plastic is limited. Therefore, the shrinkage rate of the reinforced plastic is greatly reduced, and the rigidity is greatly improved. This also greatly improves the strength of the plastic, such as tensile strength, compression strength, and bending strength; therefore, the use of glass fiber reinforced plastic can perfectly meet the needs of event organizers.

[0058] Embodiment 1 can realize multi-angle polishing of aluminum alloy die castings. However, since the sizes of aluminum alloy die castings are different, the polishing effect of embodiment 1 on workpieces of different shapes is different. Therefore, the multi-angle polishing of aluminum alloy die castings of different shapes can be carried out in the manner of embodiment 2, as follows:

[0059] Example 2: Figure 12 As shown, the multi-angle polishing equipment for aluminum alloy die castings described in the present invention, the polishing abrasive 36 is spherical, triangular or cylindrical; the spherical polishing abrasive 36 is suitable for flat products and is not easy to cause scratches on the products; the triangular abrasive is suitable for products with angles and grooves, because such products cannot be polished using circular abrasives; the cylindrical abrasive is suitable for workpieces that need to be polished with high brightness.

[0060] During operation, the staff puts the workpiece to be polished into the polishing unit 3, and then the staff turns on the switch, and the control unit 2 controls the electromagnet to be energized. The energized electromagnet generates a magnetic field, and the polishing abrasive 36 rotates under the action of the magnetic field. The rotating polishing abrasive 36 hits the workpiece to be polished, thereby achieving a polishing effect; after the polishing is completed, the control unit 2 controls the electromagnet to be powered off, and the polishing work stops at this time;

[0061] After the aluminum alloy die casting is polished, the control unit 2 controls the sliding motor (not shown in the figure) in the slider 323 to rotate, and the rotating sliding motor (not shown in the figure) drives the slider 323 to slide upward in the slide rail 322, and the upward sliding slider 323 drives the movable plate 324 to slide upward, and the upward sliding movable plate 324 drives the polished aluminum alloy die casting and the polishing abrasive 36 to separate from the liquid. At this time, the control unit 2 controls the heating device 325 to start heating and drying. After the polished aluminum alloy die casting is dried, the staff takes out the aluminum alloy die casting. At this time, the control unit 2 rotates the sliding motor (not shown in the figure) in the slider 323, and the rotating sliding motor (not shown in the figure) drives the slider 323 to slide downward in the slide rail 322, and the downward sliding slider 323 drives the movable plate 324 to slide downward, and the movable plate 324 returns to its original position.

[0062] After the staff takes out the polished aluminum alloy die-casting, the control unit 2 controls the telescopic rod 331 to extend. Since the top of the telescopic rod 331 is fixedly connected, the polishing outer cylinder 33 moves upward under the action of the force, that is, the polishing inner cylinder 32 slides upward to expose the filter hole 321 so that the filter hole 321 is connected to the collection bucket. The control unit 2 controls the stirring motor 42 to be energized. The stirring motor 42 rotates after being energized. The stirring motor 42 rotates to drive the stirring rod 43 to rotate. The stirring rod 43 rotates to drive the stirring blade 44 to rotate. The rotating stirring blade 44 drives the waste liquid in the polishing inner cylinder 32 to rotate, and the rotating waste liquid is thrown out under the action of centrifugal force; the stirring unit 4 throws the thrown waste liquid into the collection bucket, and some of the waste liquid is on the collection chassis 51. Therefore, the collection chassis 51 is designed to be a truncated cone so that the waste liquid on the collection chassis 51 can flow into the collection bucket through the inclined side of the collection chassis 51, thereby collecting all the waste liquid.

[0063] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An aluminum alloy die-casting multi-angle polishing device, comprising a bracket, a control unit, a polishing unit, a stirring unit and a collection unit, characterized in that, The bracket is fixedly installed on the ground, and the control unit is fixedly installed on the bracket. A polishing unit is fixedly installed on the right side of the control unit, and the polishing unit is used for polishing aluminum alloy die-castings; A stirring unit is rotatably installed coaxially on the polishing unit, and the stirring unit is used for stirring work after polishing; The collecting unit is fixedly installed coaxially at the bottom of the polishing unit, and the collecting unit is used for collecting the polished waste water; The polishing unit includes a fixed chassis, a polishing inner cylinder, a polishing outer cylinder, a sealing ring, a first electromagnet and polishing abrasives. The fixed chassis is fixedly installed on the bracket, the polishing inner cylinder is fixedly installed on the fixed chassis, the polishing outer cylinder is slidably installed coaxially on the polishing inner cylinder, and a sealing ring is fixedly installed at the connection between the polishing outer cylinder and the fixed chassis; A first electromagnet is fixedly installed inside the fixed chassis; The polishing abrasives are placed inside the polishing inner cylinder; Filter holes are arranged in an array at one end of the polishing inner cylinder; Expansion rods are fixedly installed in an array inside the polishing outer cylinder, and the output ends of the expansion rods are fixedly connected to the fixed chassis; A second electromagnet is fixedly installed inside the stirring blade; Sliding rails are arranged in an array inside the polishing inner cylinder, sliders are slidably installed in an array on the sliding rails, one end of the slider is fixedly connected to a movable plate, and the movable plate is slidably installed coaxially inside the polishing inner cylinder; A heating device is fixedly installed at the top of the polishing inner cylinder.

2. The multi-angle polishing device for aluminum alloy die-castings according to claim 1, characterized in that: The stirring unit includes a motor housing, a stirring motor, a stirring rod and stirring blades. The motor housing is fixedly installed at the bottom of the fixed chassis, the stirring motor is fixedly installed inside the motor housing, the output shaft of the stirring motor passes through the fixed chassis and is fixedly connected to the stirring rod, and stirring blades are fixedly installed in an array on the stirring rod.

3. The multi-angle polishing equipment for aluminum alloy die-castings according to claim 2, characterized in that: The collecting unit includes a collecting chassis and a collecting cylinder. The collecting chassis is fixedly installed coaxially at the bottom of the fixed chassis, and the shape of the collecting chassis is frustum-shaped; The collecting cylinder is fixedly installed coaxially on the collecting chassis.

4. The multi-angle polishing device for aluminum alloy die-castings according to claim 1, wherein: The material of the movable plate is glass fiber reinforced plastic.

5. The multi-angle polishing equipment for an aluminum alloy die-casting part according to claim 4, wherein: The shape of the polishing abrasives is circular, triangular or cylindrical.

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