Polishing device for aluminum alloy circular ring casting

Abstract

The aluminum alloy circular ring casting polishing device comprises a shell, a first polishing mechanism and a second polishing mechanism, the two sides of the shell are of an open structure, a through groove is formed in the shell, a guide groove is connected to the inner top wall of the shell, the guide groove and the through groove are right opposite, and the guide groove is obliquely arranged; the first polishing mechanism comprises two polishing roller assemblies and a first driving assembly, the two polishing roller assemblies are symmetrically arranged in the through groove, the first driving assembly is installed on the shell and connected with the two polishing roller assemblies, one polishing roller assembly rotates clockwise, and the other polishing roller assembly rotates anticlockwise; the second polishing mechanism comprises a second driving assembly. According to the polishing device for the aluminum alloy circular ring casting, the two side walls of the aluminum alloy circular ring casting can be polished at the same time, so that the machining steps are simplified, and the machining efficiency of the aluminum alloy circular ring casting is improved.

Description

Technical Field

[0001] The present application relates to the technical field of aluminum alloy casting processing, and in particular to a polishing device for aluminum alloy circular ring castings. Background Art

[0002] Aluminum alloy ring castings are widely used in the fields of automobiles, aerospace, ships, electronics, etc. Their excellent properties, such as light weight, corrosion resistance, beautiful appearance, and easy processing, make them an ideal material choice. In order to meet the needs of different applications, ring castings need to be finely processed, among which polishing is the key means to improve surface roughness and aesthetics.

[0003] In the related art, the aluminum alloy ring casting to be polished is generally placed on a conveying device, the aluminum alloy ring casting passes through a polishing mechanism at a uniform speed, and then the aluminum alloy ring casting is turned over and passes through the polishing mechanism again, and finally a roller polishing device is used to polish the inner and outer walls of the aluminum alloy ring casting respectively. The above polishing method has relatively complicated operating steps, which reduces the polishing efficiency of the aluminum alloy ring casting. Summary of the invention

[0004] The present application aims to solve one of the technical problems in the above-mentioned technology at least to some extent.

[0005] To this end, one purpose of the present application is to provide an aluminum alloy ring casting polishing device that can polish both side walls of the aluminum alloy ring casting simultaneously, thereby simplifying the processing steps and improving the processing efficiency of the aluminum alloy ring casting.

[0006] To achieve the above-mentioned purpose, the first embodiment of the present application proposes a polishing device for aluminum alloy circular ring castings, comprising: a shell, a first polishing mechanism and a second polishing mechanism, wherein the two sides of the shell are arranged in an open structure, a through groove is opened on the shell, and the inner top wall of the shell is connected with a guide groove, the guide groove is arranged opposite to the through groove, and the guide groove is arranged at an angle; the first polishing mechanism comprises two polishing roller assemblies and a first drive assembly, wherein the two polishing roller assemblies are symmetrically arranged inside the through groove, the first drive assembly is installed on the shell, the first drive assembly is connected to the two polishing roller assemblies, one polishing roller assembly rotates clockwise, and the other polishing roller assembly rotates counterclockwise; the second polishing mechanism comprises a second drive assembly, a support assembly and a polishing assembly, wherein the second drive assembly, the support assembly and the polishing assembly are respectively installed on the shell, the second drive assembly is arranged near the end of the guide groove, and the polishing assembly is arranged between the second drive assembly and the support assembly.

[0007] In addition, the aluminum alloy ring casting polishing device proposed in the above embodiment of the present application may also have the following additional technical features:

[0008] In one embodiment of the present application, the polishing roller assembly includes a bracket and a first polishing roller, wherein a groove is provided on the inner side wall of the through groove, the first polishing roller is rotatably connected to the bracket, and the bracket is slidably connected to the groove; an adjustment assembly is provided on the shell, and the adjustment assembly is connected to the polishing roller assembly.

[0009] In one embodiment of the present application, the adjustment assembly includes a frame, a handwheel, a worm gear transmission component, a connecting rod, two groups of linkage components, two support rings, a screw and a threaded sleeve, wherein the frame is mounted on the shell; the handwheel is mounted on the frame; the connecting rod is rotatably connected to the frame, and the connecting rod is connected to the handwheel through the worm gear transmission component; one end of the two groups of linkage components are respectively connected to one end of the connecting rod; the two support rings are symmetrically arranged on the shell and rotatably connected to the shell, and the other ends of the two groups of linkage components are respectively connected to the corresponding support rings; one end of the screw is connected to the bracket, and the other end of the screw passes through the inner wall of the groove; the threaded sleeve is threadedly connected to the screw, and the threaded sleeve is connected to the other end of the linkage component.

[0010] In one embodiment of the present application, the first driving assembly includes a first driving motor, a driving wheel, two driven wheels, a tensioning wheel, a tensioning component and a conveyor belt, wherein the first driving motor is arranged on the housing, the driving wheel is connected to the output shaft of the first driving motor; the two driven wheels are respectively connected to one end of the corresponding polishing roller assembly; the tensioning wheel is connected to the tensioning component, and the tensioning component is installed on the housing; the conveyor belt is wound around the outside of the driving wheel, the two driven wheels and the tensioning wheel.

[0011] In one embodiment of the present application, the second drive assembly includes a drive roller and a second drive motor, wherein the drive roller is rotatably connected to the shell, one end of the drive roller passes through the inner wall of the shell, the second drive motor is installed on the shell, and the output shaft of the second drive motor is connected to one end of the drive roller.

[0012] In one embodiment of the present application, the polishing assembly includes a second electric telescopic rod, a fixed plate, a rotating cylinder, a plate body, two second polishing rollers and two third drive motors, wherein the second electric telescopic rod is installed on the shell; the fixed plate is slidably connected to the shell, and the telescopic end of the second electric telescopic rod is connected to the fixed plate; the rotating cylinder is installed on the fixed plate; the plate body is connected to the output end of the rotating cylinder, the two second polishing rollers and the two third drive motors are respectively connected to the plate body, and the output shaft of the third drive motor is connected to one end of the second polishing roller.

[0013] In one embodiment of the present application, the support assembly includes a support roller and two first electric telescopic rods, wherein two slide grooves are symmetrically opened on the outer wall of the shell, both ends of the support roller pass through the corresponding slide grooves, the two first electric telescopic rods are symmetrically arranged on the outer wall of the shell, and the telescopic end of the first electric telescopic rod is connected to one end of the support roller.

[0014] The aluminum alloy ring casting polishing device of the embodiment of the present application polishes both sides of the aluminum alloy ring casting by two sets of polishing roller assemblies. Under the action of gravity and the push of the two sets of polishing roller assemblies, the aluminum alloy ring casting rolls along the guide groove to change the polishing position. Thereafter, the aluminum alloy ring casting rolls between the driving assembly and the supporting assembly, and the polishing assembly is used to polish the inner and outer walls of the aluminum alloy ring casting, thereby simplifying the processing steps and improving the processing efficiency of the aluminum alloy ring casting.

[0015] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0017] Figure 1 The structure of the polishing device for aluminum alloy circular ring casting according to one embodiment of the present application is shown in FIG. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the internal cross-sectional structure of an aluminum alloy ring casting polishing device according to an embodiment of the present application;

[0019] Figure 3 This is a schematic diagram of a first polishing mechanism of an aluminum alloy ring casting polishing device according to an embodiment of the present application;

[0020] Figure 4This is a schematic diagram of a second polishing mechanism of an aluminum alloy ring casting polishing device according to an embodiment of the present application;

[0021] Figure 5 The structure of the polishing device for aluminum alloy circular ring casting according to one embodiment of the present application is shown in FIG. Figure 2 .

[0022] Reference numerals: 1, housing; 11, through groove; 12, guide groove; 2, first polishing mechanism; 20, groove; 21, polishing roller assembly; 211, bracket; 212, first polishing roller; 22, first driving assembly; 221, first driving motor; 222, driving wheel; 223, driven wheel; 224, tensioning wheel; 225, tensioning component; 226, conveyor belt; 23, adjusting assembly; 231, frame; 232, hand wheel; 233, worm gear transmission component; 234, connecting rod; 23 5. Linkage component; 236. Support ring; 237. Screw; 238. Threaded sleeve; 3. Second polishing mechanism; 31. Second drive assembly; 311. Drive roller; 312. Second drive motor; 32. Support assembly; 321. Support roller; 322. Slide; 323. First electric telescopic rod; 33. Polishing assembly; 331. Second electric telescopic rod; 332. Fixed plate; 333. Rotating cylinder; 334. Plate body; 335. Second polishing roller; 336. Third drive motor. DETAILED DESCRIPTION

[0023] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0024] The following describes the aluminum alloy ring casting polishing device according to an embodiment of the present application with reference to the accompanying drawings.

[0025] like Figure 1-Figure 5 As shown, the aluminum alloy ring casting polishing device of the embodiment of the present application may include: a shell 1, a first polishing mechanism 2 and a second polishing mechanism 3.

[0026] The two sides of the shell 1 are arranged in an open structure. A through slot 11 is opened on the shell 1. The inner top wall of the shell 1 is connected with a guide slot 12. The guide slot 12 is arranged opposite to the through slot 11 and is arranged obliquely.

[0027] The first polishing mechanism 2 includes two polishing roller assemblies 21 and a first driving assembly 22 .

[0028] Among them, the two polishing roller assemblies 21 are symmetrically arranged inside the through groove 11, the first driving assembly 22 is installed on the shell 1, and the first driving assembly 22 is connected to the two polishing roller assemblies 21. One polishing roller assembly 21 rotates clockwise, and the other polishing roller assembly 21 rotates counterclockwise.

[0029] It can be understood that one polishing roller assembly 21 rotates clockwise and the other polishing roller assembly 21 rotates counterclockwise to apply a downward force to the aluminum alloy ring casting. Under the blocking effect of the guide groove 12, a thrust is formed on the aluminum alloy ring casting, and the aluminum alloy ring casting rolls along the guide groove 12.

[0030] The second polishing mechanism 3 includes a second driving assembly 31 , a supporting assembly 32 and a polishing assembly 33 .

[0031] Among them, the second drive component 31, the support component 32 and the polishing component 33 are respectively installed on the shell 1, the second drive component 31 is arranged near the end of the guide groove 12, and the polishing component 33 is arranged between the second drive component 31 and the support component 32. The second drive component 31 is used to drive the aluminum alloy ring casting to rotate at a uniform speed under the action of the support component 32. The support component 32 is also used to unload the aluminum alloy ring casting. The polishing component 33 is used to polish the inner and outer walls of the aluminum alloy ring casting.

[0032] Specifically, relevant technical personnel use the device to polish a batch of aluminum alloy ring castings, thereby reducing the surface roughness of the aluminum alloy ring castings.

[0033] First, the device is operated, and the first driving assembly 22 drives the two polishing roller assemblies 21 to rotate, one polishing roller assembly 21 rotates clockwise, and the other polishing roller assembly 21 rotates counterclockwise, and the aluminum alloy ring casting to be polished is placed at one end of the polishing roller assembly 21 using external lifting equipment.

[0034] Under the action of the two polishing roller assemblies 21, the aluminum alloy ring casting rolls along the guide groove 12. Since the guide groove 12 is arranged at an angle, the polishing position of the aluminum alloy ring casting also changes during the rolling process. The two polishing roller assemblies 21 jointly polish the side of the aluminum alloy ring casting.

[0035] The aluminum alloy ring casting rolls along the guide groove 12 until it falls between the second drive assembly 31 and the support assembly 32, and then the second drive assembly 31 and the polishing assembly 33 operate (this working condition can be obtained through the infrared sensor). The polishing assembly 33 can polish the inner wall and the outer wall of the aluminum alloy ring casting at the same time. After polishing, the polishing assembly 33 is reset, the support assembly 32 is deformed, and the aluminum alloy ring casting is unloaded, thereby completing the polishing process of the aluminum alloy ring casting, simplifying the processing steps, and improving the processing efficiency of the aluminum alloy ring casting.

[0036] It should be noted that in order to avoid generating a large amount of heat during the polishing process, a liquid injection mechanism can be arranged at the first polishing mechanism 2 and the second polishing mechanism 3. The liquid injection mechanism can take away a large amount of heat generated during the polishing process and can also play a role in dust reduction. The specific structure of the liquid injection mechanism has been disclosed in the prior art, so it will not be described in detail here.

[0037] In one embodiment of the present application, Figure 1 and Figure 3 As shown, the polishing roller assembly 21 includes a bracket 211 and a first polishing roller 212 .

[0038] The inner side wall of the through groove 11 is provided with a groove 20 , the first polishing roller 212 is rotatably connected to the bracket 211 , the bracket 211 is slidably connected to the groove 20 , an adjusting component 23 is provided on the housing 1 , and the adjusting component 23 is connected to the polishing roller component 21 .

[0039] In one embodiment of the present application, Figure 1 and Figure 3 As shown, the adjustment assembly 23 includes a frame 231 , a hand wheel 232 , a worm gear transmission component 233 , a connecting rod 234 , two sets of linkage components 235 , two support rings 236 , a screw 237 and a threaded sleeve 238 .

[0040] It should be noted that the linkage component 235 described in this embodiment includes a transmission wheel and a transmission belt, and its specific connection structure has been disclosed in the prior art, so it will not be described in detail here.

[0041] Among them, the frame 231 is installed on the shell 1, the hand wheel 232 is installed on the frame 231, the connecting rod 234 is rotatably connected to the frame 231, the connecting rod 234 is connected to the hand wheel 232 through a worm gear transmission component 233, one end of the two groups of linkage components 235 are respectively connected to one end of the connecting rod 234, the two support rings 236 are symmetrically arranged on the shell 1, and are rotatably connected to the shell 1, the other ends of the two groups of linkage components 235 are respectively connected to the corresponding support rings 236, one end of the screw rod 237 is connected to the bracket 211, and the other end of the screw rod 237 passes through the inner wall of the groove 20, the threaded sleeve 238 is threadedly connected to the screw rod 237, and the threaded sleeve 238 is connected to the other end of the linkage component 235.

[0042] When it is necessary to perform polishing on aluminum alloy circular ring castings of different specifications and models, the distance between the two polishing roller assemblies 21 is adjusted according to the width of the aluminum alloy circular ring castings.

[0043] Specifically, by rotating the handwheel 232, the connecting rod 234 rotates under the linkage action of the worm gear transmission component 233, and the connecting rod 234 drives one end of the linkage component 235 to rotate, and the linkage component 235 drives the threaded sleeve 238 to rotate, and the screw 237 moves, thereby driving the polishing roller assembly 21 to slide inside the groove 20, so that the distance between the two polishing roller assemblies 21 is reduced, thereby expanding the scope of application of the present device.

[0044] As a possible situation, in order to avoid excessive polishing or insufficient polishing, an adaptive mechanism may be set between the bracket 211 and the first polishing roller 212. The adaptive mechanism may include a spring and a moving block. A pressure sensor may be set between the moving block and the spring. The pressure sensor can monitor the pressure between the spring and the moving block, so that the polishing roller assembly 21 applies a preset force to the aluminum alloy ring casting.

[0045] In one embodiment of the present application, Figure 1 and Figure 3 As shown, the first driving assembly 22 includes a first driving motor 221 , a driving wheel 222 , two driven wheels 223 , a tensioning wheel 224 , a tensioning component 225 and a conveyor belt 226 .

[0046] Among them, the first driving motor 221 is arranged on the shell 1, the driving wheel 222 is connected to the output shaft of the first driving motor 221, the two driven wheels 223 are respectively connected to one end of the corresponding polishing roller assembly 21, the tensioning wheel 224 is connected to the tensioning component 225, the tensioning component 225 is installed on the shell 1, and the conveyor belt 226 is wound around the outside of the driving wheel 222, the two driven wheels 223 and the tensioning wheel 224.

[0047] Specifically, during the operation of the first driving assembly 22 , the first driving motor 221 drives the driving wheel 222 to rotate, and under the action of the conveyor belt 226 , the two polishing roller assemblies 21 rotate to polish the aluminum alloy ring casting.

[0048] When the distance between the two polishing roller assemblies 21 changes, the shape of the conveyor belt 226 changes, and under the action of the tensioning wheel 224 and the tensioning component 225, the device can operate reliably.

[0049] In one embodiment of the present application, Figure 1 and Figure 4 As shown, the second driving assembly 31 includes a driving roller 311 and a second driving motor 312 .

[0050] The driving roller 311 is rotationally connected to the shell 1 , one end of the driving roller 311 passes through the inner wall of the shell 1 , the second driving motor 312 is installed on the shell 1 , and the output shaft of the second driving motor 312 is connected to one end of the driving roller 311 .

[0051] In one embodiment of the present application, Figure 1 and Figure 4 As shown, the polishing assembly 33 includes a second electric telescopic rod 331 , a fixing plate 332 , a rotating cylinder 333 , a plate body 334 , two second polishing rollers 335 and two third driving motors 336 .

[0052] Among them, the second electric telescopic rod 331 is installed on the shell 1, the fixed plate 332 is slidably connected to the shell 1, the telescopic end of the second electric telescopic rod 331 is connected to the fixed plate 332, the rotating cylinder 333 is installed on the fixed plate 332, the plate body 334 is connected to the output end of the rotating cylinder 333, the two second polishing rollers 335 and the two third drive motors 336 are respectively connected to the plate body 334, and the output shaft of the third drive motor 336 is connected to one end of the second polishing roller 335.

[0053] Specifically, after the first polishing mechanism 2 completes processing of the aluminum alloy ring casting, the aluminum alloy ring casting falls between the second driving assembly 31 and the supporting assembly 32, the second polishing mechanism 3 operates, and the second electric telescopic rod 331 pushes the fixed plate 332 to move, so that the two second polishing rollers 335 are placed on the outside of the aluminum alloy ring casting, the rotating cylinder 333 is started, and the rotating cylinder 333 drives the plate body 334 to rotate, and the two second polishing rollers 335 are in contact with the outer wall and the inner wall of the aluminum alloy ring casting, and the two second polishing rollers 335 apply a preset force (which can be determined according to actual conditions) to the aluminum alloy ring casting.

[0054] The second driving assembly 31 is running, the second driving motor 312 drives the driving roller 311 to rotate, the aluminum alloy ring casting rotates at a constant speed, and the third driving motor 336 drives the second polishing roller 335 to rotate, thereby polishing the inner wall and the outer wall of the aluminum alloy ring casting.

[0055] In one embodiment of the present application, Figure 1 , Figure 3 and Figure 4 As shown, the support assembly 32 includes a support roller 321 and two first electric telescopic rods 323 .

[0056] Among them, two slide grooves 322 are symmetrically opened on the outer wall of the shell 1, and the two ends of the support roller 321 pass through the corresponding slide grooves 322. Two first electric telescopic rods 323 are symmetrically arranged on the outer wall of the shell 1, and the telescopic end of the first electric telescopic rod 323 is connected to one end of the support roller 321.

[0057] Specifically, after the polishing process of the inner and outer walls of the aluminum alloy ring casting is completed, the polishing assembly 33 is reset, and the first electric telescopic rod 323 pushes the support roller 321 downward. Under the action of gravity, the aluminum alloy ring casting is separated from the second drive assembly 31 and the support assembly 32, and relevant technicians place the polished aluminum alloy ring casting in a preset placement position (which can be determined according to actual conditions).

[0058] In summary, two sets of polishing roller assemblies are used to polish both sides of the aluminum alloy ring casting. Under the action of gravity and the push of the two sets of polishing roller assemblies, the aluminum alloy ring casting rolls along the guide groove to change the polishing position. Then, the aluminum alloy ring casting rolls between the driving assembly and the supporting assembly, and the polishing assembly is used to polish the inner and outer walls of the aluminum alloy ring casting, thereby simplifying the processing steps and improving the processing efficiency of the aluminum alloy ring casting.

[0059] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0060] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0061] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present application.

Claims

1. A polishing device for aluminum alloy ring castings, characterized in that: include: A housing, a first polishing mechanism and a second polishing mechanism, wherein: The two sides of the shell are arranged in an open structure, a through slot is provided on the shell, a guide slot is connected to the inner top wall of the shell, the guide slot is arranged opposite to the through slot, and the guide slot is arranged obliquely; The first polishing mechanism includes two polishing roller assemblies and a first driving assembly, wherein: The two polishing roller assemblies are symmetrically arranged inside the through groove, the first driving assembly is installed on the housing, the first driving assembly is connected to the two polishing roller assemblies, one polishing roller assembly rotates clockwise, and the other polishing roller assembly rotates counterclockwise; The second polishing mechanism includes a second driving assembly, a supporting assembly and a polishing assembly, wherein: The second driving assembly, the supporting assembly and the polishing assembly are respectively mounted on the housing, the second driving assembly is arranged close to the end of the guide groove, and the polishing assembly is arranged between the second driving assembly and the supporting assembly.

2. The aluminum alloy ring casting polishing device according to claim 1, characterized in that: The polishing roller assembly comprises a bracket and a first polishing roller, wherein: The inner side wall of the through groove is provided with a groove, the first polishing roller is rotatably connected to the bracket, and the bracket is slidably connected to the groove; An adjusting component is arranged on the shell, and the adjusting component is connected with the polishing roller component.

3. The aluminum alloy ring casting polishing device according to claim 2, characterized in that: The adjustment assembly includes a frame, a hand wheel, a worm gear transmission component, a connecting rod, two sets of linkage components, two support rings, a screw and a threaded sleeve, wherein: The frame is mounted on the housing; The hand wheel is mounted on the frame; The connecting rod is rotatably connected to the frame, and the connecting rod is connected to the hand wheel through the worm gear transmission component; One end of the two groups of linkage components is respectively connected to one end of the connecting rod; The two support rings are symmetrically arranged on the housing and are rotatably connected to the housing, and the other ends of the two groups of linkage components are respectively connected to the corresponding support rings; One end of the screw rod is connected to the bracket, and the other end of the screw rod passes through the inner wall of the groove; The threaded sleeve is threadably connected to the screw rod, and the threaded sleeve is connected to the other end of the linkage component.

4. The aluminum alloy ring casting polishing device according to claim 1, characterized in that: The first driving assembly includes a first driving motor, a driving wheel, two driven wheels, a tensioning wheel, a tensioning component and a conveyor belt, wherein: The first drive motor is arranged on the housing, and the driving wheel is connected to the output shaft of the first drive motor; The two driven wheels are respectively connected to one end of the corresponding polishing roller assembly; The tension wheel is connected to the tension component, and the tension component is installed on the housing; The conveyor belt is wound around the outer sides of the driving wheel, the two driven wheels and the tensioning wheel.

5. The aluminum alloy ring casting polishing device according to claim 1, characterized in that: The second driving assembly includes a driving roller and a second driving motor, wherein: The driving roller is rotatably connected to the shell, one end of the driving roller passes through the inner wall of the shell, the second driving motor is installed on the shell, and the output shaft of the second driving motor is connected to one end of the driving roller.

6. The aluminum alloy ring casting polishing device according to claim 1, characterized in that: The polishing assembly includes a second electric telescopic rod, a fixed plate, a rotating cylinder, a plate body, two second polishing rollers and two third drive motors, wherein: The second electric telescopic rod is mounted on the housing; The fixing plate is slidably connected to the housing, and the telescopic end of the second electric telescopic rod is connected to the fixing plate; The rotary cylinder is mounted on the fixed plate; The plate body is connected to the output end of the rotating cylinder, the two second polishing rollers and the two third driving motors are respectively connected to the plate body, and the output shaft of the third driving motor is connected to one end of the second polishing roller.

7. The aluminum alloy ring casting polishing device according to claim 1, characterized in that: The support assembly includes a support roller and two first electric telescopic rods, wherein: Two slide grooves are symmetrically provided on the outer wall of the shell, and both ends of the support roller pass through the corresponding slide grooves. Two first electric telescopic rods are symmetrically arranged on the outer wall of the shell, and the telescopic end of the first electric telescopic rod is connected to one end of the support roller.

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