Aluminum alloy casting grinding device

Abstract

The utility model relates to an aluminum alloy casting polishing device and belongs to the technical field of polishing. Comprising a polishing sand storage device, an aluminum alloy casting driving device is installed on the polishing sand storage device, polishing sand is placed in the polishing sand storage device, the aluminum alloy casting driving device extends into the polishing sand storage device, and the aluminum alloy casting driving device is used for clamping an aluminum alloy casting. The casting clamp is arranged to clamp and fix the aluminum alloy casting, so that the aluminum alloy casting rotates in the supporting frame, the aluminum alloy casting is in high-speed contact with grinding sand in the supporting frame when rotating, and therefore the aluminum alloy casting is ground, and the aluminum alloy casting cannot be impacted due to the fact that the aluminum alloy casting is fixed in the grinding process; and the polishing sand can be in complete contact with the outer surface of the aluminum alloy casting, so that the bent part can be conveniently polished, and the effects of improving the polishing efficiency and protecting the aluminum alloy casting are achieved.

Description

Technical Field

[0001] The utility model discloses an aluminum alloy casting grinding device, which relates to the technical field of metal grinding. Background Art

[0002] Aluminum alloy castings refer to aluminum alloy equipment components obtained by casting. Generally, a sand mold or a metal mold is used to pour the heated liquid aluminum alloy into the mold cavity, and the obtained aluminum alloy parts of various shapes and sizes are usually called aluminum die castings.

[0003] During the manufacturing process of aluminum alloy castings, there will be some gaps when the metal castings are molded, resulting in some burrs on the corners of the metal castings, and burrs often exist on the outer surface. In order to improve the quality of aluminum alloy castings, the burrs need to be polished to keep the outer surface of the aluminum alloy castings smooth.

[0004] Chinese patent publication number CN220613350U discloses a metal casting grinding device, comprising a grinding table, the top of which is fixedly connected to a clamping mechanism, the clamping mechanism comprising a fixed block, the top of the grinding table is fixedly connected to the fixed block, the side of the fixed block is connected to a threaded rod through a thread, one end of the threaded rod is rotatably connected to a clamping plate through a bearing, and the other end of the threaded rod is fixedly connected to a handle;

[0005] The above-mentioned prior art, although, by setting up a clamping mechanism and a clamping plate, it is possible to clamp metal castings of different sizes, by setting up a brush, it is possible to clean the metal casting residues in the grinding table during the clamping process, thereby avoiding the need to use traditional cleaning methods that require stopping the machine first and then manually cleaning with handheld tools, resulting in low production efficiency, and also avoiding the potential safety hazards caused by manual cleaning, thereby making it more convenient for staff to use the grinding device.

[0006] However, there is a problem that the outer surface of the aluminum alloy casting is polished by a hard polishing piece, and the aluminum alloy casting often has bends such as angles and corners, and these bends are difficult to be polished, resulting in unsatisfactory polishing effect.

[0007] Although there are shot blasting machines on the market that can achieve comprehensive grinding of aluminum alloy castings, the castings in the shot blasting machine will be driven at high speed and collide with each other under the action of centrifugal force, while aluminum alloy castings are relatively soft and easily damaged.

[0008] It can be seen that there is an urgent need for an aluminum alloy casting grinding device that can protect the aluminum alloy casting while improving the grinding efficiency. Utility Model Content

[0009] In view of the deficiencies in the prior art, the purpose of the utility model is to improve the technology of grinding aluminum alloy castings, and to provide an aluminum alloy casting grinding device that adopts a soft grinding technical solution, which has the beneficial effect of improving the grinding efficiency while protecting metal parts.

[0010] The purpose of the utility model is achieved in this way:

[0011] A grinding device for aluminum alloy castings, comprising a grinding sand storage device, an aluminum alloy casting driving device is installed on the grinding sand storage device, grinding sand is placed inside the grinding sand storage device, the aluminum alloy casting driving device extends to the inside of the grinding sand storage device, the aluminum alloy casting driving device is used to clamp the aluminum alloy casting, and drive the aluminum alloy casting to rotate and contact and rub with the grinding sand to achieve grinding;

[0012] The grinding sand storage device comprises a support frame, an edge of the support frame is provided with a roller mounting groove, a power transmission device is installed on the outer surface of the support frame, and the power transmission device is on the same side as any roller mounting groove;

[0013] The aluminum alloy casting driving device comprises a transmission roller, the outer surface of which is fixedly connected to a grinding turntable, and the outer surface of which is equidistantly installed with casting clamps, which clamp the aluminum alloy casting;

[0014] The end of the transmission roller is connected to the power transmission device through a conveyor belt, so that the power transmission device drives the transmission roller to rotate. The rotating transmission roller drives the casting fixture that clamps the aluminum alloy casting to rotate and generate friction with the grinding sand inside the support frame to achieve grinding.

[0015] Preferably, the top of the roller mounting groove is an open opening, and a connecting flange is installed on the side of the roller mounting groove. The connecting flange is installed on the side of the support frame by bolts, and the connecting flange supports and limits the two ends of the driving roller.

[0016] Preferably, the end of the casting fixture extends to the outside of the support frame.

[0017] Preferably, the grinding turntable can be disassembled from the outer surface of the driving roller, and the number of the grinding turntable is at least one.

[0018] Preferably, the transmission roller comprises a metal transmission rod, and the outer surface of the metal transmission rod is fixedly connected to a limit strip;

[0019] The grinding turntable includes a flywheel disc, a through hole for plugging with a metal transmission rod is arranged in the middle of the flywheel disc, threaded connectors are fixedly connected on both sides of the through hole, and a telescopic slot is arranged on the threaded connector;

[0020] The telescopic groove is plugged with the limiting strip, and the outer surface of the threaded connector is threadedly connected with a locking nut, and the locking nut squeezes the threaded connector so that the threaded connector is clamped on the outer surface of the metal transmission rod.

[0021] Preferably, the casting clamp comprises relatively symmetrical clamping plates, ends of which are provided with fixing nuts, and the fixing nuts can be tightened and retracted to clamp the aluminum alloy casting.

[0022] Preferably, the splint is rigid and non-elastic.

[0023] Beneficial effects:

[0024] First, the utility model clamps the aluminum alloy casting by setting a casting clamp, and drives the grinding turntable to rotate by a power transmission device, so that the aluminum alloy casting rotates inside the supporting frame. When the aluminum alloy casting rotates, it will contact the grinding sand inside the supporting frame at high speed, so as to grind the aluminum alloy casting. When grinding, the aluminum alloy casting will not be hit because it is fixed, avoiding damage, and the grinding sand can completely contact the outer surface of the aluminum alloy casting, which is convenient for grinding the bent parts, thereby achieving the effect of improving the grinding efficiency and protecting the aluminum alloy casting.

[0025] Second, the utility model supports the limited transmission roller by setting the upper part of the roller shaft installation groove as an open mouth, and connecting it to the outer surface of the support frame through a connecting flange, and the grinding turntable is detachably installed on the outer surface of the transmission roller. When in use, the aluminum alloy casting driving device can be conveniently disassembled and assembled, and the installation quantity and spacing of the grinding turntable can be adjusted according to the size of the aluminum alloy casting, thereby achieving the effect of convenient maintenance and repair and adjusting the spacing according to the size of the aluminum alloy casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the utility model;

[0027] Figure 2 This is a side view of the structure of the utility model;

[0028] Figure 3 This is a schematic diagram of the assembly of the metal transmission rod and the grinding turntable of the utility model;

[0029] Figure 4 For this utility model Figure 3 A schematic diagram of the structure enlargement in the middle;

[0030] Figure 5 It is a side view of the casting fixture structure of the utility model.

[0031] In the figure: 1. grinding sand storage device; 101. support frame; 102. roller mounting groove; 103. power transmission equipment; 2. aluminum alloy casting driving device; 201. transmission roller; 2011. metal transmission rod; 2012. limit strip; 202. grinding turntable; 2021. flywheel; 2022. threaded connector; 2023. expansion slot; 2024. locking nut; 203. casting fixture; 2031. splint; 2032. fixing nut; 3. connecting flange. DETAILED DESCRIPTION

[0032] The specific implementation of the utility model will be further described in detail below with reference to the accompanying drawings.

[0033] An aluminum alloy casting grinding device under this specific implementation method, such as Figure 1-5 As shown, it includes a grinding sand storage device 1, an aluminum alloy casting driving device 2 is installed on the grinding sand storage device 1, grinding sand is placed inside the grinding sand storage device 1, the aluminum alloy casting driving device 2 extends to the inside of the grinding sand storage device 1, and the aluminum alloy casting driving device 2 is used to clamp the aluminum alloy casting and drive the aluminum alloy casting to rotate and contact and rub with the grinding sand to achieve grinding;

[0034] The grinding sand storage device 1 comprises a support frame 101, a roller mounting groove 102 is provided at the edge of the support frame 101, a power transmission device 103 is installed on the outer surface of the support frame 101, and the power transmission device 103 is on the same side as any roller mounting groove 102;

[0035] The aluminum alloy casting driving device 2 includes a driving roller 201, the outer surface of the driving roller 201 is fixedly connected to a grinding turntable 202, and the outer surface of the grinding turntable 202 is equidistantly installed with casting clamps 203, and the casting clamps 203 clamp the aluminum alloy casting;

[0036] The end of the transmission roller 201 is connected to the power transmission device 103 through a conveyor belt, so that the transmission roller 201 is driven to rotate through the power transmission device 103. The rotating transmission roller 201 drives the casting clamp 203 that clamps the aluminum alloy casting to rotate and generate friction with the grinding sand inside the support frame 101 to achieve grinding.

[0037] Through the above technical solution, a casting clamp 203 is provided to clamp and fix the aluminum alloy casting, and the power transmission device 103 is used to drive the grinding turntable 202 to rotate, so that the aluminum alloy casting rotates inside the support frame 101. When the aluminum alloy casting rotates, it will contact with the grinding sand inside the support frame 101 at a high speed, so as to grind the aluminum alloy casting. When grinding, the aluminum alloy casting will not collide because it is fixed, avoiding damage, and the grinding sand can completely contact with the outer surface of the aluminum alloy casting, which is convenient for grinding the bent parts, thereby achieving the effect of improving the grinding efficiency and protecting the aluminum alloy casting.

[0038] Because the material of the aluminum alloy casting is relatively soft, the grinding effect can be achieved by high-speed friction between the grinding sand and the aluminum alloy casting, and the grinding turntable 202 rotates alternately in forward and reverse directions during grinding;

[0039] In order to prevent the grinding sand in the support frame 101 from being thrown out by the high-speed rotating aluminum alloy casting during grinding, baffles can be set on both sides of the support frame 101 to block the grinding sand. The style of the baffles is like the mudguard of the rear wheel of a bicycle or motorcycle.

[0040] Specifically, the top of the roller mounting groove 102 is an open mouth, and a connecting flange 3 is installed on the side of the roller mounting groove 102. The connecting flange 3 is installed on the side of the support frame 101 by bolts, and the connecting flange 3 supports and limits the two ends of the driving roller 201.

[0041] Through the above technical solution, the top of the roller shaft mounting groove 102 is set as an open opening, and is connected to the outer surface of the support frame 101 through the connecting flange 3 to support the limiting transmission roller 201, so that the transmission roller 201 can be easily disassembled after removing the connecting flange 3, so as to achieve the effect of quick disassembly and assembly.

[0042] Specifically, the end of the casting fixture 203 extends to the outside of the supporting frame 101 .

[0043] Through the above technical solution, the casting clamp 203 is extended to the outside of the support frame 101, so that when fixing and clamping the aluminum alloy casting, it can be done outside the equipment, which is used to facilitate the fixing of the aluminum alloy casting. When fixing the aluminum alloy casting, the grinding turntable 202 can be manually rotated to adjust the angle of the casting clamp 203.

[0044] Specifically, the grinding turntable 202 can be disassembled from the outer surface of the driving roller 201, and the number of the grinding turntable 202 is at least one.

[0045] Through the above technical solution, the grinding turntable 202 is installed on the outer surface of the driving roller 201 in a detachable manner, so that the grinding turntable 202 can adjust the spacing and increase or decrease the number of installations on the surface of the driving roller 201, the purpose of which is to increase the number of aluminum alloy castings that can be ground and adjust the spacing according to the different sizes of the aluminum alloy castings.

[0046] Specifically, the transmission roller 201 includes a metal transmission rod 2011, and the outer surface of the metal transmission rod 2011 is fixedly connected to a limit strip 2012;

[0047] The grinding turntable 202 includes a flywheel disc 2021, a through hole for plugging with the metal transmission rod 2011 is arranged in the middle of the flywheel disc 2021, and threaded connectors 2022 are fixedly connected on both sides of the through hole, and a telescopic slot 2023 is opened on the threaded connector 2022;

[0048] The expansion slot 2023 is plugged into the limiting strip 2012 , and the outer surface of the threaded connector 2022 is threadedly connected with a locking nut 2024 , which squeezes the threaded connector 2022 so that the threaded connector 2022 is clamped on the outer surface of the metal transmission rod 2011 .

[0049] Through the above technical solution, the limit strip 2012 is used to cooperate with the end of the telescopic slot 2023 to synchronize the rotation speeds of the metal transmission rod 2011 and the flywheel disc 2021, thereby preventing the flywheel disc 2021 from slipping on the outer surface of the metal transmission rod 2011 and improving the transmission efficiency. When the locking nut 2024 is tightened on the outer surface of the threaded connector 2022, the locking nut 2024 will apply pressure to the threaded connector 2022, so that the threaded connector 2022 is compressed inwardly through the telescopic slot 2023 to be fixed.

[0050] Specifically, the casting fixture 203 includes relatively symmetrical clamping plates 2031 , and the ends of the clamping plates 2031 are provided with fixing nuts 2032 . The fixing nuts 2032 can be tightened and retracted to clamp the aluminum alloy casting.

[0051] Through the above technical solution, when fixing the aluminum alloy casting, the aluminum alloy casting is placed between the clamps 2031, and then the fixing nut 2032 is tightened so that the end of the fixing nut 2032 penetrates into the middle of the clamp 2031, thereby fixing the aluminum alloy casting.

[0052] Specifically, the clamping plate 2031 is rigid and has no elasticity.

[0053] Through the above technical solution, the clamping plate 2031 is set to be rigid and non-elastic, the purpose of which is to improve the stability of fixing the aluminum alloy casting. When the clamping plate 2031 is elastic, the aluminum alloy casting is easily thrown out under the centrifugal force of rotation, causing risks.

[0054] When in use, the aluminum alloy casting is clamped and fixed by setting the casting clamp 203, and the grinding turntable 202 is driven to rotate by the power transmission device 103, so that the aluminum alloy casting rotates inside the support frame 101. When the aluminum alloy casting rotates, it will contact with the grinding sand inside the support frame 101 at a high speed, so as to grind the aluminum alloy casting. When grinding, the aluminum alloy casting will not collide because it is fixed, avoiding damage, and the grinding sand can completely contact with the outer surface of the aluminum alloy casting, which is convenient for grinding the bent parts, thereby achieving the effect of improving the grinding efficiency and protecting the aluminum alloy casting.

[0055] By setting the top of the roller shaft mounting groove 102 as an open mouth, and connecting it to the outer surface of the support frame 101 through the connecting flange 3 to support the limiting transmission roller 201, and the grinding turntable 202 is detachably installed on the outer surface of the transmission roller 201, when in use, the aluminum alloy casting driving device 2 can be conveniently disassembled and assembled, and the installation quantity and spacing of the grinding turntable 202 can be adjusted according to the size of the aluminum alloy casting, thereby achieving the effect of convenient maintenance and inspection and adjusting the spacing according to the size of the aluminum alloy casting.

[0056] It should be noted that although specific embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these specific embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grinding device for aluminum alloy castings, comprising a grinding sand storage device (1), characterized in that: An aluminum alloy casting driving device (2) is installed on the grinding sand storage device (1), grinding sand is placed inside the grinding sand storage device (1), and the aluminum alloy casting driving device (2) extends to the inside of the grinding sand storage device (1). The aluminum alloy casting driving device (2) is used to clamp the aluminum alloy casting and drive the aluminum alloy casting to rotate and contact and rub with the grinding sand to achieve grinding; The grinding sand storage device (1) comprises a support frame (101), a roller mounting groove (102) is provided on the edge of the support frame (101), a power transmission device (103) is installed on the outer surface of the support frame (101), and the power transmission device (103) is on the same side as any roller mounting groove (102); The aluminum alloy casting driving device (2) comprises a driving roller (201), the outer surface of the driving roller (201) is fixedly connected to a grinding turntable (202), the outer surface of the grinding turntable (202) is equidistantly mounted with casting clamps (203), and the casting clamps (203) clamp the aluminum alloy casting; The end of the transmission roller (201) is connected to the power transmission device (103) via a conveyor belt, so that the power transmission device (103) drives the transmission roller (201) to rotate, and the rotating transmission roller (201) drives the casting clamp (203) that clamps the aluminum alloy casting to rotate, thereby generating friction with the grinding sand inside the support frame (101) to achieve grinding.

2. The aluminum alloy casting grinding device according to claim 1, characterized in that: The top of the roller shaft mounting groove (102) is an open opening, and a connecting flange (3) is installed on the side of the roller shaft mounting groove (102). The connecting flange (3) is installed on the side of the supporting frame (101) by means of bolts, and the connecting flange (3) supports and limits the two ends of the driving roller (201).

3. The aluminum alloy casting grinding device according to claim 1, characterized in that: The end of the casting fixture (203) extends to the outside of the support frame (101).

4. The aluminum alloy casting grinding device according to claim 2, characterized in that: The grinding turntable (202) can be disassembled from the outer surface of the driving roller (201), and the number of the grinding turntable (202) is at least one.

5. The aluminum alloy casting grinding device according to claim 4, characterized in that: The transmission roller (201) comprises a metal transmission rod (2011), and the outer surface of the metal transmission rod (2011) is fixedly connected to a limit strip (2012); The grinding turntable (202) comprises a flywheel disc (2021), a through hole for plugging into a metal transmission rod (2011) is arranged in the middle of the flywheel disc (2021), threaded connectors (2022) are fixedly connected to both sides of the through hole, and a telescopic slot (2023) is provided on the threaded connector (2022); The telescopic groove (2023) is plugged into the limiting strip (2012), and the outer surface of the threaded connector (2022) is threadedly connected with a locking nut (2024), and the locking nut (2024) squeezes the threaded connector (2022) so that the threaded connector (2022) is clamped on the outer surface of the metal transmission rod (2011).

6. The aluminum alloy casting grinding device according to claim 1, characterized in that: The casting clamp (203) comprises relatively symmetrical clamping plates (2031), and the ends of the clamping plates (2031) are provided with fixing nuts (2032), and the fixing nuts (2032) can be tightened and retracted to clamp the aluminum alloy casting.

7. The aluminum alloy casting grinding device according to claim 6, characterized in that: The clamping plate (2031) is rigid and has no elasticity.

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