Surface corner grinding device for aluminum profile production

Abstract

The invention relates to the technical field of aluminum profile production and polishing, and discloses a surface corner polishing device for aluminum profile production, which comprises two mounting frames symmetrically arranged front and back; the conveying mechanism is mounted on the two mounting rack brackets; the bottom surface of the mounting plate is fixedly mounted on the top surfaces of the two mounting frames; the polishing assembly is connected with the mounting plate; the rotating assembly is arranged between the conveying mechanism and the polishing assembly; the auxiliary assembly is connected with the polishing assembly; and the wiping assembly is mounted on the inner surface of the mounting plate. Through precise matching of a ball block and an arc-shaped groove in the top of a circular plate and ingenious arrangement of a second spring, vertical reciprocating motion of a grinding column can be achieved while the grinding column rotates, the vertical reciprocating motion is combined with rotary grinding, all-directional vertical grinding of the aluminum profile is achieved, and the grinding efficiency of the aluminum profile is improved. And the polishing strength and effect are remarkably enhanced, and the efficiency and quality of polishing operation are further improved.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum profile production and polishing, in particular to a surface corner polishing device for aluminum profile production. Background Art

[0002] The density of aluminum profile is only 2.7g / cm3, which is about 1 / 3 of the density of steel or brass (7.83g / cm3 and 8.93g / cm3 respectively). Under most environmental conditions, including in air, water (or brine), petrochemicals and many chemical systems, aluminum can show excellent corrosion resistance, and aluminum profiles are widely used. Aluminum profile is a profile made of aluminum alloy. The production process of aluminum profile generally requires molding, casting, extrusion, cooling, aging treatment, surface treatment and other steps.

[0003] In the raw processing of aluminum profiles, the edges and corners of the surface need to be polished. Under current technical conditions, there are two main ways to polish aluminum profiles, but both have significant shortcomings. One method is to rely on the staff to operate a small handheld grinder. This method is not only cumbersome to operate, but also inefficient, greatly increasing labor costs and time consumption. The other method is to use large-scale grinding equipment. Although it has improved the scale effect of grinding to a certain extent, its operation process is relatively rigid: it is usually necessary to fix the plate-shaped aluminum profile on the grinding workbench, and only one side of the aluminum profile can be polished. After one side is polished, the aluminum profile needs to be manually flipped before the other side can be polished. This flipping process undoubtedly adds additional operating steps and brings many inconveniences to the polishing work. Therefore, both methods restrict the efficiency of aluminum profile polishing to a certain extent, which in turn affects the economic benefits of production and processing, and is not conducive to the optimization of production costs and the improvement of market competitiveness.

[0004] Therefore, it is necessary to design a surface corner grinding device for aluminum profile production with strong practicality. Summary of the invention

[0005] The purpose of the present invention is to provide a surface corner grinding device for aluminum profile production to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a surface corner grinding device for aluminum profile production, comprising: There are two mounting frames, which are symmetrically arranged at the front and rear positions; A conveying mechanism mounted on two mounting brackets; A mounting plate, the bottom surface of which is fixedly mounted to the top surfaces of two mounting frames; Polishing components, connected and set with mounting plate; A rotating assembly is disposed between the conveying mechanism and the grinding assembly; An auxiliary component connected to the grinding component; The wiping assembly is mounted on the inner surface of the mounting plate.

[0007] According to the above technical solution, a bracket is fixedly installed at the bottom of the mounting frame, and a cross frame is fixedly installed between two adjacent brackets. The installed bracket can provide a stable support for the entire device, thereby facilitating stable grinding work.

[0008] According to the above technical solution, the conveying mechanism is composed of a motor, a driving roller, a driven roller, and a belt.

[0009] According to the above technical solution, the number of the grinding assemblies is four, with two grinding assemblies forming a group, and the grinding assemblies are symmetrically distributed at left and right positions with the center line of the front side of the mounting plate as the axis of symmetry.

[0010] According to the above technical solution, the grinding assembly includes: The top of the mounting shaft is rotatably arranged through a bearing and the top of the inner wall of the mounting plate, and a limiting block is slidably arranged in a limiting groove provided on the mounting shaft; A grinding column, the top surface of which is fixedly installed with the bottom end of the mounting shaft, a large arc groove on the outer wall of the grinding column is slidably provided with an arc grinding block, the number of the arc grinding blocks is three, and every two adjacent arc grinding blocks are connected by a connecting part, and the connecting part is arranged in a small arc groove on the top surface of the grinding column, and the small arc groove is communicated with the large arc groove, and the arranged grinding assembly facilitates the grinding of the aluminum profile.

[0011] According to the above technical solution, the connecting portion includes: The arc-shaped slide block is slidably arranged with the small arc-shaped groove, and the two ends of the arc-shaped slide block are fixedly installed with the arc-shaped grinding block; The limiting column is slidably mounted with the arc-shaped slider, and the two ends of the limiting column are fixedly mounted with the inner wall of the small arc-shaped groove; The first spring and the sliding sleeve are arranged on the outer wall of the limiting combination. One end of the first spring is fixedly installed on the outer wall of the arc-shaped slider, and the other end of the first spring is fixedly installed on the inner wall of the small arc-shaped groove. The polarization of the arc-shaped grinding block can be realized during the grinding process through the arranged connection part, which can prevent the broken materials from being attached to the surface and affecting the grinding work.

[0012] According to the above technical solution, the rotating assembly includes: A long board, the bottom surface of which is fixedly mounted on the surface of the belt, and a rack is fixedly mounted on the side surface of the long board; A large gear is meshed with the rack, a first rotating shaft is fixedly mounted on the inner wall of the large gear, and a bottom end of the first rotating shaft is rotatably mounted on the bottom of the inner wall of the mounting plate via a bearing; A small gear is meshed with the large gear, a second rotating shaft is fixedly mounted on the inner wall of the small gear, and a bottom end of the second rotating shaft is rotatably mounted on the bottom of the inner wall of the mounting plate via a bearing; The bottom surface of the cross-shaped block is fixedly installed with the top end of the second rotating shaft. The cross-shaped block and the cross-shaped groove opened on the bottom surface of the grinding column are slidably arranged. The arc-shaped grinding block can be rotated by the arranged rotating component, and it is opposite to the conveying direction of the conveyor belt, thereby enhancing the grinding efficiency.

[0013] According to the above technical solution, the auxiliary component includes: A circular plate is sleeved on the outer wall of the second rotating shaft, and the outer wall of the circular plate is fixedly mounted via the connecting plate and the inner surface of the mounting plate; There are multiple spherical blocks, which are distributed in a circular array on the bottom surface of the grinding column, and the spherical blocks are clamped with the arc grooves opened on the top surface of the circular plate; The second spring is arranged in the limiting groove, the top end of the second spring is fixedly installed with the top of the inner wall of the limiting groove, and the bottom end of the second spring is fixedly installed with the top surface of the limiting block. The auxiliary components provided can realize the up and down grinding work of the arc-shaped grinding block and enhance the grinding force.

[0014] According to the above technical solution, the wiping assembly includes: A U-shaped plate is fixedly mounted on the inner surface of the mounting plate, and a mounting column is fixedly mounted on the inner wall of the U-shaped plate; A wiping roller is slidably sleeved on the outer wall of the mounting column; The third spring is movably sleeved on the outer wall of the mounting column, one end of the third spring is fixedly mounted on the end face of the mounting column, and one end of the third spring away from the mounting column is fixedly mounted on the inner wall of the U-shaped plate. The wiping component is provided to wipe the material after being polished by the first group of polishing components, and then the second group of polishing components can polish it better.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are: 1. The present invention, through the provision of an arc-shaped grinding block, can achieve contact grinding processing with the aluminum profile under belt conveyor. During the grinding process, due to the provision of the arc-shaped slider, the limit column, and the provision of the first spring, the arc-shaped grinding block can be slightly vibrated. This feature effectively prevents debris from adhering to the surface of the arc-shaped grinding block, thereby ensuring the efficient and continuous grinding operation and avoiding the problem of reduced grinding efficiency due to accumulation of debris.

[0016] 2. The present invention, through the setting of the rotating component, can work smoothly under the drive of the belt, thereby prompting the arc-shaped grinding block to rotate, and the direction of the rotation is just opposite to the moving direction of the aluminum profile. This reverse rotation setting significantly enhances the grinding effect of the arc-shaped grinding block on the aluminum profile, thereby improving the overall grinding efficiency.

[0017] 3. The present invention, through the precise matching of the spherical block and the arc groove on the top of the circular plate, coupled with the ingenious setting of the second spring, can realize the up and down reciprocating motion of the grinding column itself while the grinding column rotates. This up and down reciprocating motion combined with the rotary grinding not only realizes the all-round up and down grinding of the aluminum profile, but also significantly enhances the strength and effect of the grinding, and further improves the efficiency and quality of the grinding operation.

[0018] 4. The present invention, through the provision of a wiping roller, can effectively wipe and clean the aluminum profile after fine grinding by the first group of grinding components, thereby creating favorable conditions for efficient subsequent processing of the second group of grinding components. In addition, the provision of a third spring device can give the wiping roller a slight vibration function. This feature effectively prevents debris from remaining on the surface of the aluminum profile, thereby ensuring the optimization of the wiping effect and avoiding the overall processing quality being affected by the adhesion of debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall three-dimensional structure of a surface corner grinding device for aluminum profile production according to the present invention; Figure 2 The invention discloses a surface corner grinding device for aluminum profile production. Figure 1 A schematic diagram of the structure from one angle; Figure 3 It is a schematic diagram of the internal structure of a mounting plate in a surface corner grinding device for aluminum profile production according to the present invention; Figure 4 It is a schematic diagram of the structure of a grinding component in a surface corner grinding device for aluminum profile production according to the present invention; Figure 5 It is a schematic diagram of the structure of a wiping component in a surface corner grinding device for aluminum profile production according to the present invention; Figure 6 It is a schematic diagram of the upward structure of the mounting column in a surface corner grinding device for aluminum profile production according to the present invention; Figure 7 The invention discloses a surface corner grinding device for aluminum profile production. Figure 6 Schematic diagram of the partial decomposition structure of the outer wall; Figure 8 The invention discloses a surface corner grinding device for aluminum profile production. Figure 7 A schematic diagram of the enlarged structure at point A; Fig. 9 The invention discloses a surface corner grinding device for aluminum profile production. Figure 6 Schematic diagram of the bottom partial decomposition structure; Fig.10 The invention discloses a surface corner grinding device for aluminum profile production. Fig. 9 A schematic diagram from one angle.

[0020] In the figure: 1. Mounting frame; 2. Conveying mechanism; 3. Bracket; 4. Horizontal frame; 5. Mounting plate; 6. grinding assembly; 61. mounting shaft; 62. grinding column; 63. arc-shaped grinding block; 64. stop block; 65. connecting part; 651. arc-shaped slider; 652. stop column; 653. first spring; 7. Rotating assembly; 71. Long board; 72. Rack; 73. Big gear; 74. First rotating shaft; 75. Small gear; 76. Second rotating shaft; 77. Cross block; 8. Auxiliary component; 81. Circular plate; 82. Connecting plate; 83. Second spring; 84. Ball block; 85. Arc groove; 9. Wiping assembly; 91. U-shaped plate; 92. Mounting column; 93. Wiping roller; 94. Third spring; 10. Large arc groove; 11. Small arc groove; 12. Limit groove; 13. Cross groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example 1: Please refer to Figure 1-10 The present invention provides a technical solution: a surface corner grinding device for aluminum profile production, comprising: Mounting rack 1, two in number, symmetrically arranged at the front and rear positions; Among them, a bracket 3 is fixedly installed at the bottom of the mounting frame 1, and a cross frame 4 is fixedly installed between two adjacent brackets 3. The installed bracket 3 can play a role of stable support for the entire device, which is convenient for stable grinding work; The conveying mechanism 2 is installed on two mounting brackets 1, and the conveying mechanism 2 is composed of a motor, a driving roller, a driven roller, and a belt; The bottom surface of the mounting plate 5 is fixedly mounted to the top surfaces of the two mounting frames 1; A grinding assembly 6 is connected to the mounting plate 5. The number of the grinding assemblies 6 is four, and each two grinding assemblies 6 form a group, and are symmetrically distributed at left and right positions with the midline of the front side of the mounting plate 5 as the symmetry axis; The rotating assembly 7 is arranged between the conveying mechanism 2 and the grinding assembly 6; An auxiliary component 8, connected to the grinding component 6; The wiping assembly 9 is installed on the inner surface of the mounting plate 5 .

[0023] The grinding assembly 6 comprises: The top of the mounting shaft 61 is rotatably arranged through a bearing and the top of the inner wall of the mounting plate 5, and the limiting groove 12 provided on the mounting shaft 61 is slidably arranged with a limiting block 64; The top surface of the grinding column 62 is fixedly installed with the bottom end of the mounting shaft 61. The large arc groove 10 provided on the outer wall of the grinding column 62 is slidably provided with an arc grinding block 63. There are three arc grinding blocks 63. Every two adjacent arc grinding blocks 63 are connected by a connecting portion 65. The connecting portion 65 is provided in a small arc groove 11 provided on the top surface of the grinding column 62. The small arc groove 11 is communicated with the large arc groove 10. The connecting portion 65 includes: The arc-shaped slider 651 is slidably arranged with the small arc-shaped groove 11, and both ends of the arc-shaped slider 651 are fixedly installed with the arc-shaped grinding block 63; The limiting column 652 is slidably mounted on the arc-shaped slider 651, and both ends of the limiting column 652 are fixedly mounted on the inner wall of the small arc-shaped groove 11; The first spring 653 is slidably mounted on the outer wall of the limiting assembly 652 , one end of the first spring 653 is fixedly mounted on the outer wall of the arc-shaped slider 651 , and the other end of the first spring 653 is fixedly mounted on the inner wall of the small arc-shaped groove 11 .

[0024] During the specific implementation process, the configured arc-shaped grinding block 63 can contact and grind the aluminum profile under the action of belt conveyor. Due to the sliding connection design between the arc-shaped grinding block 63 and the large arc-shaped groove 10 opened on the outer wall of the grinding column 62, as well as the ingenious arrangement of the arc-shaped slider 651, the limit column 652 and the first spring 653, the arc-shaped grinding block 63 can produce slight vibration during the grinding process. This feature effectively prevents debris from adhering to the surface of the arc-shaped grinding block 63, thereby avoiding the problem of decreased grinding efficiency in the later stage due to the accumulation of debris.

[0025] Example 2: Based on the above embodiment, the rotating assembly 7 includes: The bottom surface of the long plate 71 is fixedly mounted on the surface of the belt, and the side surface of the long plate 71 is fixedly mounted with a rack 72; The large gear 72 is meshed with the rack 72, and a first rotating shaft 74 is fixedly mounted on the inner wall of the large gear 72. The bottom end of the first rotating shaft 74 is rotatably mounted on the bottom of the inner wall of the mounting plate 5 via a bearing; The small gear 75 is meshed with the large gear 72. The inner wall of the small gear 75 is fixedly mounted with a second rotating shaft 76. The bottom end of the second rotating shaft 76 is rotatably mounted with the bottom of the inner wall of the mounting plate 5 via a bearing. The bottom surface of the cross block 77 is fixedly mounted on the top of the second rotating shaft 76 , and the cross block 77 is slidably arranged on the cross groove 13 formed on the bottom surface of the grinding column 62 .

[0026] In the specific implementation process, since the long board 71 is firmly connected to the belt, the long board 71 will move during the belt conveying process. At the same time, the rack 72 installed on the side of the long board 71 will also move synchronously. As the rack 72 moves, the large gear 73 can be driven to rotate under the movement of the rack 72. The rotation of the large gear 73 further drives the small gear 75 to rotate, thereby prompting the second rotating shaft 76 to rotate. Since the cross block 77 matches the cross groove 13 opened on the bottom surface of the grinding column 62, when the second rotating shaft 76 rotates, it can effectively drive the grinding column 62 to rotate. Finally, this series of linkage mechanisms causes the arc-shaped grinding block 63 to rotate accordingly, greatly enhancing the grinding treatment effect of the aluminum profile.

[0027] Example 3: Based on the above embodiment, the auxiliary component 8 includes: The circular plate 81 is sleeved on the outer wall of the second rotating shaft 76, and the outer wall of the circular plate 81 is fixedly mounted on the inner surface of the mounting plate 5 through the connecting plate 82; There are multiple spherical blocks 84, which are distributed in a circular array on the bottom surface of the grinding column 62. The spherical blocks 84 are engaged with the arc grooves 85 formed on the top surface of the circular plate 81; The second spring 83 is disposed in the limiting groove 12 , the top end of the second spring 83 is fixedly mounted to the top of the inner wall of the limiting groove 12 , and the bottom end of the second spring 83 is fixedly mounted to the top surface of the limiting block 64 .

[0028] In the specific implementation process, due to the setting of the spherical block 84 and the arc groove 85 on the top surface of the circular plate 81, and the setting of the second spring 83, when the grinding column 62 rotates, it can drive itself to move up and down reciprocatingly. This up and down reciprocating movement is combined with the rotational grinding to realize the multi-dimensional and all-round grinding treatment of the aluminum profile. Through this design, not only the grinding force is enhanced, but also the comprehensiveness and uniformity of the grinding effect are ensured.

[0029] Example 4: Based on the above embodiment, the wiping assembly 9 includes: A U-shaped plate 91 is fixedly mounted on the inner surface of the mounting plate 5, and a mounting column 92 is fixedly mounted on the inner wall of the U-shaped plate 91; A wiping roller 93 is slidably mounted on the outer wall of the mounting column 92; The third spring 94 is movably sleeved on the outer wall of the mounting column 92 , and one end of the third spring 94 is fixedly mounted on the end surface of the mounting column 92 .

[0030] In the specific implementation process, after the grinding by the first group of grinding components 6 is completed, the wiping roller 93 can be used to wipe the aluminum profile, which is convenient for the efficient grinding by the second group of grinding components 6. At the same time, the third spring 94 is set to make the wiping roller 93 vibrate slightly to prevent debris from adhering to the surface and affecting the wiping process.

[0031] Working principle: First, place the aluminum profile to be polished on the belt, and then start the conveying mechanism 2 to achieve smooth conveying of the aluminum profile. During this process, the arc-shaped polishing block 63 is set, which can contact and polish the aluminum profile while being conveyed by the belt. Since a sliding setting is adopted between the arc-shaped polishing block 63 and the large arc-shaped groove 10 on the outer wall of the polishing column 62, and the synergistic effect of the arc-shaped slider 651, the limit column 652 and the first spring 653, the arc-shaped polishing block 63 can generate slight vibration during the polishing process, which effectively prevents debris from adhering to its surface and ensures that the polishing efficiency is not affected. At the same time, since the long plate 71 is fixedly connected to the belt, as the belt is conveyed, the long plate 71 and the rack 72 installed on its side will also move accordingly, and this movement drives the rotation of the large gear 73 meshing with it, and then realizes the rotation of the small gear 75 and the second rotating shaft 76 through gear transmission. Due to the precise matching of the cross block 77 and the cross groove 13 on the bottom surface of the grinding column 62, the rotation of the second rotating shaft 76 can drive the grinding column 62 and the arc-shaped grinding block 63 thereon to rotate, thereby further enhancing the grinding effect of the aluminum profile. In addition, the matching design of the spherical block 84 and the arc-shaped groove 85 on the top surface of the circular plate 81, as well as the setting of the second spring 83, enables the grinding column 62 to realize its own up and down reciprocating movement while rotating. This up and down reciprocating movement combined with rotary grinding not only realizes the all-round up and down grinding of the aluminum profile, but also significantly improves the strength and efficiency of grinding. After the first set of grinding components 6 completes grinding, the aluminum profile can be wiped by the provided wiping roller 93, so as to prepare for the efficient grinding of the second set of grinding components 6. At the same time, the provision of the third spring 94 enables the wiping roller 93 to have a slight vibration function, effectively preventing the debris from adhering to its surface, and ensuring the smooth progress of the wiping process.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A surface corner grinding device for aluminum profile production, characterized in that: include: Two mounting frames (1) are provided, symmetrically arranged at the front and rear positions; A conveying mechanism (2) is mounted on two mounting brackets (1); A mounting plate (5), the bottom surface of which is fixedly mounted on the top surfaces of the two mounting frames (1); A grinding assembly (6) connected to the mounting plate (5); A rotating assembly (7) is arranged between the conveying mechanism (2) and the grinding assembly (6); An auxiliary component (8) connected to the grinding component (6); The wiping assembly (9) is mounted on the inner surface of the mounting plate (5).

2. The surface corner grinding device for aluminum profile production according to claim 1 is characterized in that: A bracket (3) is fixedly mounted on the bottom of the mounting frame (1), and a cross frame (4) is fixedly mounted between two adjacent brackets (3).

3. The surface corner grinding device for aluminum profile production according to claim 2 is characterized in that: The conveying mechanism (2) is composed of a motor, a driving roller, a driven roller, and a belt.

4. The surface corner grinding device for aluminum profile production according to claim 3 is characterized in that: The number of the grinding assemblies (6) is four, with two grinding assemblies (6) forming a group, and the grinding assemblies (6) are symmetrically distributed at left and right positions with the center line of the front face of the mounting plate (5) as the symmetry axis.

5. The surface corner grinding device for aluminum profile production according to claim 4 is characterized in that: The grinding assembly (6) comprises: The top end of the mounting shaft (61) is rotatably arranged via a bearing and the top of the inner wall of the mounting plate (5), and a limiting block (64) is slidably arranged in a limiting groove (12) provided on the mounting shaft (61); A grinding column (62) is fixedly mounted on the top surface of the grinding column (62) and the bottom end of the mounting shaft (61). A large arc groove (10) is provided on the outer wall of the grinding column (62) and a curved grinding block (63) is slidably provided thereon. The number of the curved grinding blocks (63) is three, and each two adjacent curved grinding blocks (63) are connected by a connecting portion (65). The connecting portion (65) is provided in a small arc groove (11) provided on the top surface of the grinding column (62), and the small arc groove (11) is communicated with the large arc groove (10).

6. The surface corner grinding device for aluminum profile production according to claim 5, characterized in that: The connecting portion (65) comprises: An arc-shaped slide block (651) is slidably arranged with the small arc-shaped groove (11), and both ends of the arc-shaped slide block (651) are fixedly mounted with the arc-shaped grinding block (63); The limiting column (652) is slidably mounted on the arc-shaped slider (651), and both ends of the limiting column (652) are fixedly mounted on the inner wall of the small arc-shaped groove (11); The first spring (653) is slidably mounted on the outer wall of the limiting assembly (652), one end of the first spring (653) is fixedly mounted on the outer wall of the arc-shaped sliding block (651), and the other end of the first spring (653) is fixedly mounted on the inner wall of the small arc-shaped groove (11).

7. The surface corner grinding device for aluminum profile production according to claim 6, characterized in that: The rotating assembly (7) comprises: A long plate (71) whose bottom surface is fixedly mounted on the surface of the belt, and a rack (72) is fixedly mounted on the side surface of the long plate (71); A large gear (72) is meshed with the rack (72), a first rotating shaft (74) is fixedly mounted on the inner wall of the large gear (72), and a bottom end of the first rotating shaft (74) is rotatably mounted on the bottom of the inner wall of the mounting plate (5) via a bearing; A small gear (75) is meshed with the large gear (72); a second rotating shaft (76) is fixedly mounted on the inner wall of the small gear (75); a bottom end of the second rotating shaft (76) is rotatably mounted on the bottom of the inner wall of the mounting plate (5) via a bearing; The bottom surface of the cross-shaped block (77) is fixedly mounted on the top of the second rotating shaft (76), and the cross-shaped block (77) is slidably arranged on the cross-shaped groove (13) provided on the bottom surface of the grinding column (62).

8. The surface corner grinding device for aluminum profile production according to claim 7, characterized in that: The auxiliary component (8) comprises: A circular plate (81) sleeved on the outer wall of the second rotating shaft (76), the outer wall of the circular plate (81) being fixedly mounted on the inner surface of the mounting plate (5) via a connecting plate (82); A plurality of spherical blocks (84) are distributed in an annular array on the bottom surface of the grinding column (62), and the spherical blocks (84) are engaged with arc grooves (85) provided on the top surface of the circular plate (81); The second spring (83) is arranged in the limiting groove (12), the top end of the second spring (83) is fixedly mounted to the top of the inner wall of the limiting groove (12), and the bottom end of the second spring (83) is fixedly mounted to the top surface of the limiting block (64).

9. The surface corner grinding device for aluminum profile production according to claim 8, characterized in that: The wiping assembly (9) comprises: A U-shaped plate (91) is fixedly mounted on the inner surface of the mounting plate (5), and a mounting column (92) is fixedly mounted on the inner wall of the U-shaped plate (91); A wiping roller (93) slidably sleeved on the outer wall of the mounting column (92); A third spring (94) is movably sleeved on the outer wall of the mounting column (92), one end of the third spring (94) is fixedly mounted on the end surface of the mounting column (92), and one end of the third spring (94) away from the mounting column (92) is fixedly mounted on the inner wall of the U-shaped plate (91).

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