Aluminum long rod surface processing polisher

Abstract

The present application relates to the technical field of metal polishing, and particularly relates to an aluminum long rod surface processing polishing machine; the polishing machine comprises a rack and a triangular plate installed on the rack, and a bottom plate is installed on the rack; a polishing mechanism is arranged on the triangular plate, and a limiting mechanism is arranged on the bottom plate; through the cooperation of the polishing mechanism and the limiting mechanism, the one-time full-circle wire drawing of a round rod and the multi-surface wire drawing of a square rod are realized on the same device, the moving part and the pressing part are adapted to switch the contact form of the abrasive belt according to the cross-sectional shape of the workpiece, the adjusting part adjusts the distance between the limiting blocks to support the round rod by the driving roller or to adsorb and fix the square rod by the upper end surface of the limiting block, and the technical problem of the traditional device needing multiple cooperation and single function is solved.

Description

Technical Field

[0001] This invention relates to the field of metal polishing technology, and in particular to a polishing machine for the surface processing of aluminum long bars. Background Technology

[0002] Aluminum and aluminum alloys are widely used in aerospace, automobile manufacturing, electronics, building decoration and other fields due to their excellent properties such as light weight, good corrosion resistance and easy processing. Among the many aluminum products, aluminum long bars, including round cross-section bars and square cross-section bars, are a common intermediate or final product form. They are often used as extrusion blanks, machined blanks or directly as decorative parts.

[0003] The existing surface wire drawing process uses a triangular plane wire drawing machine. The workpiece is placed on a flat worktable, and the work surface is ground by a sanding belt to obtain the desired wire drawing effect. For round cross-section bars, a round tube polishing machine is often used. The bar is rotated forward by using the principle of centerless grinding, and the grinding head performs wrap-around grinding on the workpiece.

[0004] However, the following problems exist in the current process of grinding and wire drawing of aluminum long bars: the flat abrasive belt of the triangular flat wire drawing machine easily grinds out the flat surface and damages the roundness when it comes into contact with the cylindrical surface; while the round tube polishing machine can only process round cross-section workpieces and cannot process square, hexagonal and other irregular cross-section bars. Enterprises need to purchase multiple special equipment, which results in large investments and low utilization rates. At the same time, the existing equipment cannot quickly switch between the two different processing modes of full circumference wire drawing of round bars and flat wire drawing of square bars on the same machine, nor can it adaptively adjust the contact pattern between the abrasive belt and the workpiece according to the cross-sectional shape of the workpiece. The existing equipment lacks a unified structural design that can accommodate the two modes. In addition, the triangular flat wire drawing machine is difficult to selectively process local areas of the workpiece and cannot complete differentiated wire drawing treatment of different parts of the same workpiece while ensuring zero damage to non-processed areas.

[0005] Therefore, the difficulty of existing equipment in flexibly and stably completing differentiated surface processing of aluminum long bars of various shapes is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0006] In view of the above problems, the present invention provides a surface grinding machine for aluminum long bars to solve the aforementioned technical problems.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a surface grinding machine for aluminum long bars, comprising a frame and a triangular plate mounted thereon, and a base plate mounted on the frame; a grinding mechanism is provided on the triangular plate, and a limiting mechanism is provided on the base plate.

[0008] The grinding mechanism includes a housing fixedly installed at the front end of a triangular plate. Three rubber rollers are provided inside the housing, and a sanding belt is driven on the rubber rollers. Two guide wheels are provided below the sanding belt and mounted on the frame. The triangular plate is provided with a pressing part and a sliding tensioning part, and a moving part is provided on the triangular plate.

[0009] The limiting mechanism includes a lifting part that is slidably mounted on the upper part of the base plate. The lifting part is equipped with a worktable, and a rotating table is mounted on the upper part of the worktable. A support plate is mounted on the rotating section of the rotating table. Two rows of limiting components are slidably mounted on the upper part of the support plate. Each row of limiting components consists of multiple limiting blocks. Multiple suction holes are evenly opened on the upper end of the limiting blocks. A drive roller is mounted on each row of limiting blocks. An adjustment part is provided on the support plate, and a drive component is provided on the adjustment part.

[0010] In the round bar processing mode, the adjustment part adjusts the distance between the two rows of limit blocks so that the drive roller supports round bars of different diameters, and the moving part drives the tensioning part to adjust the sanding belt to wrap around the round bar, so as to achieve uniform grinding of the entire circumference of the round bar.

[0011] When the square bar is being processed, the adjustment unit adjusts the distance between the two rows of limit blocks so that the upper surface of the limit blocks forms a supporting plane to adsorb and fix the square bar. The pressing unit pushes the sanding belt to fit against the surface of the square bar, thus achieving flat grinding of the square bar.

[0012] As a preferred embodiment, the tensioning part includes two symmetrical drive plates that are slidably mounted on the front end of the triangular plate. A shaft plate is fixedly mounted on the lower part of the drive plate, and two tension rollers are rotatably mounted on the shaft plate. The two tension rollers are staggered vertically and respectively fit with the upper and lower ends of the lower section of the sanding belt.

[0013] As a preferred embodiment, the lifting unit includes two slide blocks slidably mounted on the upper end of the base plate. Two optical shafts are fixedly mounted on the upper end of the slide blocks. A cylinder is also fixedly mounted on the upper end of the slide blocks. The telescopic section of the cylinder is fixedly connected to the lower end of the worktable. A feed component for driving the two slide blocks to move is provided on the base plate.

[0014] As a preferred embodiment, the adjustment part includes a sliding plate, and two sets of limiting components are provided with sliding plates slidably mounted on the support plate on opposite sides. The opposing surfaces of the two sliding plates are fixedly mounted with pillars corresponding to the corresponding limiting blocks. The pillars are fixedly connected to the corresponding limiting blocks. The support plate is provided with a push-pull component to drive the two sliding plates to move.

[0015] As a preferred embodiment, the moving part includes two synchronous wheels rotatably mounted on the front end of the triangular plate, with a synchronous belt driving between the two synchronous wheels, and two drive plates fixedly connected to the upper and lower sections of the synchronous belt respectively.

[0016] As a preferred embodiment, the push-pull component includes a double-outlet cylinder fixedly installed at the lower end of the support plate. A connecting plate is fixedly installed on each of the telescopic sections on both sides of the double-outlet cylinder, and the connecting plate is fixedly connected to the corresponding slide plate.

[0017] As a preferred embodiment, the driving component includes a stepper motor, with stepper motors fixedly mounted on the opposite surfaces of the two slides, and the output shafts of the stepper motors being connected to the corresponding drive rollers via a transmission belt.

[0018] As a preferred embodiment, the feed component includes a linear module fixedly mounted on the upper part of the base plate, a push plate fixedly mounted on the moving section of the linear module, and the lower end of the push plate fixedly connected to two slide blocks.

[0019] As a preferred embodiment, motor one and motor two are fixedly installed on the frame. The output shaft of motor one is fixedly connected to one of the rubber rollers, and the output shaft of motor two is fixedly connected to one of the synchronous pulleys.

[0020] As a preferred embodiment, the pressing part includes a fixed seat fixedly installed at the front end of the triangular plate, a cylinder two fixedly installed at the front end of the fixed seat, and a pressure plate fixedly installed on the telescopic section of the cylinder two.

[0021] The above-described one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

[0022] I. This invention achieves two processing modes on the same machine: one-time full-circumference wire drawing of round bars and multi-face wire drawing of square bars, through the coordinated cooperation of the grinding mechanism and the limiting mechanism. The moving part and the pressing part adaptively switch the sanding belt contact mode according to the cross-sectional shape of the workpiece. The adjusting part adjusts the spacing of the limiting blocks so that the driving roller supports the round bar or the upper end surface of the limiting block adsorbs and fixes the square bar. This solves the technical problems of traditional equipment requiring multiple units to cooperate and having a single function.

[0023] Second, this invention solves the technical problem that existing equipment cannot stably fix workpieces with different cross-sectional shapes on the same machine by adjusting the spacing between two rows of staggered limiting blocks through the adjustment part. This is achieved by using the driving roller to support round bars of different diameters to achieve rotational drive, and by using the continuous support plane formed by the upper end surface of the limiting blocks to adsorb and fix square bars.

[0024] Third, the present invention solves the technical problem that existing equipment cannot adaptively adjust the contact shape of the abrasive belt according to the cross-sectional shape of the workpiece by means of the division of labor and cooperation between the moving part and the pressing part. When processing round bars, the moving part drives the tensioning part to adjust the abrasive belt to form a state of wrapping the arc surface. When processing square bars, the pressing part directly pushes the abrasive belt to fit with the plane.

[0025] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of an aluminum bar with a circular cross-section during the grinding process according to the present invention.

[0028] Figure 2 for Figure 1 A second-view structural diagram of the hidden portion of the shell;

[0029] Figure 3 This is a partial structural schematic diagram of the aluminum bar with a square cross-section during the grinding process according to the present invention;

[0030] Figure 4 This is a schematic diagram of the structure of the adjustment part of the present invention;

[0031] Figure 5 Figure 4 Enlarged view of the structure at point A in the image;

[0032] Figure 6 This is a schematic diagram of the lifting part of the present invention.

[0033] Reference numerals: 10. Frame; 11. Triangular plate; 12. Base plate; 2. Grinding mechanism; 20. Housing; 21. Rubber roller; 210. Motor 1; 22. Sanding belt; 23. Guide wheel; 4. Tensioning part; 40. Drive plate; 41. Shaft plate; 42. Tensioning roller; 5. Moving part; 50. Synchronous pulley; 500. Motor 2; 51. Synchronous belt; 6. Pressing part; 60. Cylinder 2; 61. Pressure plate; 3. Limiting mechanism; 30. Working part 31. Rotary table; 32. Support plate; 33. Limiting block; 330. Adsorption hole; 34. Drive roller; 7. Lifting part; 70. Slide; 71. Optical axis; 72. Cylinder 1; 73. Feeding part; 730. Linear module; 731. Push plate; 8. Adjusting part; 80. Slide plate; 81. Support column; 82. Push-pull part; 820. Double-outlet cylinder; 821. Connecting plate; 9. Drive component; 90. Stepper motor; 91. Transmission belt. Detailed Implementation

[0034] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] like Figure 1 and Figure 2 As shown, an aluminum long bar surface processing and polishing machine includes a frame 10 and a triangular plate 11 fixedly installed thereon. A base plate 12 located below the triangular plate 11 is fixedly installed on the frame 10. A polishing mechanism 2 is provided on the triangular plate 11, and a limiting mechanism 3 is provided on the base plate 12.

[0036] like Figure 1 , Figure 2 and Figure 3 As shown, the grinding mechanism 2 includes a housing 20 fixedly installed at the front end of the triangular plate 11. Three triangularly distributed rubber rollers 21 are arranged inside the housing 20. The rubber rollers 21 are rotatably mounted on the triangular plate 11. The rubber rollers 21 are driven by a sanding belt 22. Two guide wheels 23 are arranged below the lower horizontal section of the sanding belt 22 and are in close contact with it. The guide wheels 23 are rotatably mounted on the frame 10. A tensioning part 4 is arranged between the two guide wheels 23. The tensioning part 4 is slidably arranged on the triangular plate 11. A pressing part 6 and a moving part 5 are arranged on the triangular plate 11.

[0037] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the limiting mechanism 3 includes a lifting part 7 that is slidably installed on the upper end of the base plate 12. A worktable 30 is provided on the lifting part 7. A rotary table 31 is fixedly installed on the upper end of the worktable 30. A support plate 32 is fixedly installed on the upper rotating section of the rotary table 31. Two rows of limiting components are slidably installed on the upper end of the support plate 32. Each row of limiting components consists of multiple limiting blocks 33. The two rows of limiting blocks 33 are staggered. Multiple adsorption holes 330 are evenly opened on the upper end of the limiting blocks 33. A drive roller 34 is rotatably installed on each row of limiting blocks 33. An adjustment part 8 is provided on the support plate 32. A drive component 9 is provided on the adjustment part 8.

[0038] like Figure 1 , Figure 2 and Figure 3 As shown, the pressing part 6 includes a fixed seat fixedly installed at the front end of the triangular plate 11, a cylinder 60 fixedly installed at the front end of the fixed seat, and a pressure plate 61 fixedly installed on the telescopic section of the cylinder 60.

[0039] like Figure 1and Figure 2 As shown, a first motor 210 and a second motor 500 are fixedly installed on the frame 10. The output shaft of the first motor 210 is fixedly connected to one of the rubber rollers 21, and the output shaft of the second motor 500 is fixedly connected to one of the synchronous pulleys 50.

[0040] like Figures 1 to 5 As shown, during specific operation, the operator first selects the fixing method of the limiting mechanism 3 according to the cross-sectional shape of the aluminum bar to be processed. When processing a circular cross-section aluminum bar, the circular bar is placed between two rows of staggered limiting blocks 33 on the upper end of the support plate 32. The circular bar contacts the surface of the drive rollers 34 on the two rows of limiting blocks 33. The distance between the two rows of limiting blocks 33 is adjusted by the adjusting part 8 so that the drive rollers 34 position the circular bar from both sides. The axis of the circular bar remains stable, and a rolling contact is formed between the circular bar and the drive rollers 34. When processing a square cross-section aluminum bar, the square bar is placed on the upper surface of the two rows of limiting blocks 33. The negative pressure system connected to the adsorption holes 330 is activated. Multiple adsorption holes 330 evenly opened on the upper end of the limiting blocks 33 generate negative pressure to adsorb and fix the square bar to the upper surface of the limiting blocks 33.

[0041] After the workpiece is placed, the operator adjusts the direction of the aluminum bar according to the processing requirements, starts the rotary table 31, and the upper rotating section of the rotary table 31 drives the support plate 32 to rotate in the horizontal plane, so that the axis of the aluminum bar is perpendicular to the movement direction of the sand belt 22 of the grinding mechanism 2, thus preparing for the subsequent wire drawing.

[0042] The operator then starts the lifting unit 7, which lifts the worktable 30, the rotary table 31 and the support plate 32 together.

[0043] When machining a circular cross-section aluminum bar, the operator simultaneously activates the moving part 5. The moving part 5 drives the tensioning part 4 to slide, adjusting the length of the lower horizontal section of the abrasive belt 22 in contact with the aluminum bar. This ensures that the abrasive belt 22 can fully wrap around the arc surface of the bar, forming a wrapping state that adheres closely to the surface of the bar. After the abrasive belt 22 wraps around the bar, the driving component 9 is activated. The driving component 9 drives the driving roller 34 on the support plate 32 to rotate. Since the bar is placed on the driving roller 34 and in frictional contact with the surface of the driving roller 34, the rotation of the driving roller 34 causes the bar to rotate uniformly around its own axis through friction. At the same time, the grinding mechanism 2 is started. The motor 210 drives the sanding belt 22 to rotate at high speed through the rubber roller 21. The round bar rotates at a uniform speed under the drive roller 34. The high-speed rotating sanding belt 22 performs uniform grinding on the surface of the round bar to form a continuous circumferential wire drawing pattern. Through the axial sliding of the lifting part 7, the sanding belt 22 can cover the entire length range of the round bar, realizing the full grinding of the entire length of the round bar. Since the sanding belt 22 is always in contact with the surface of the round bar during the rotation, the wire drawing treatment of the entire circumference of the round bar can be completed in one processing, without the need to pick up and put down the surface midway.

[0044] When processing a square-section aluminum bar, the operator activates cylinder 60 of the lower pressing section 6. The telescopic section of cylinder 60 extends, causing the pressure plate 61 to move downwards. The pressure plate 61 pushes the lower horizontal section of the sanding belt 22 towards the upper surface of the square bar. The sanding belt 22 maintains a planar contact shape and is parallel and in contact with the upper surface of the square bar. The lifting section 7 slides along the base plate 12, causing the worktable 30, rotary table 31, support plate 32, and square bar to move together at a uniform speed. The rotating sanding belt 22 generates relative motion with the moving upper surface of the square bar, grinding the upper surface of the square bar to form a uniform brushed texture. Through the sliding of the lifting section 7, the sanding belt 22 can cover the entire length of the square bar, achieving full grinding of the entire length of the square bar. After processing one side, the negative pressure adsorption system is turned off to release the adsorption fixation. The square bar is removed, rotated 90 degrees so that the adjacent sides face upwards, and placed back on the upper surface of the limiting block 33. The negative pressure adsorption system is then activated to fix it. The above operation is repeated until the brushing treatment of all four sides of the square bar is completed.

[0045] When it is necessary to perform localized wire drawing on a round bar, such as leaving unprocessed areas at both ends of the round bar and only drawing the middle part, the operator controls the sliding stroke range of the lifting part 7 so that the lifting part 7 only moves the round bar axially within the set middle area. The unprocessed areas at both ends of the round bar remain stationary when the lifting part 7 stops, and the abrasive belt 22 produces a grinding effect only in the area where the round bar moves axially, thereby achieving zoned processing.

[0046] Throughout the entire processing, the lifting unit 7 is used to adjust the relative height between the aluminum long bar and the abrasive belt 22 and slide along the base plate 12 to achieve workpiece feeding. The rotary table 31 is used to adjust the direction of the aluminum long bar. The two rows of staggered limiting blocks 33 can support round bars and also adsorb and fix square bars. The drive roller 34 is installed on each row of limiting blocks 33 and is used to drive the round bars to rotate by friction when processing round bars. The adjusting unit 8 is used to adjust the spacing between the two rows of limiting blocks 33 to accommodate round bars of different diameters. The drive component 9 provides power to the drive roller 34. The cylinder 60 and pressure plate 61 of the pressing unit 6 are used to push the abrasive belt 22 to fit the workpiece surface when processing square cross-section workpieces. The moving unit 5 is used to adjust the length of the abrasive belt 22 to achieve wrapping of the round bar when processing round cross-section workpieces. The guide wheel 23 and the tensioning unit 4 are used to maintain the stable operation of the abrasive belt 22. The organic cooperation of these structures enables the same equipment to complete the grinding and wire drawing of round bars and square bars with high quality.

[0047] like Figure 1 , Figure 3 and Figure 4 As shown, the adjustment part 8 includes a slide plate 80. The two sets of limiting components are provided with slide plates 80 that are slidably mounted on the support plate 32 on opposite sides. The opposing surfaces of the two slide plates 80 are fixedly mounted with pillars 81 that correspond one-to-one with the corresponding limiting blocks 33. The pillars 81 are fixedly connected to the corresponding limiting blocks 33. The support plate 32 is provided with push-pull members 82 that drive the two slide plates 80 to move.

[0048] like Figure 1 and Figure 3 As shown, the push-pull component 82 includes a double-outlet cylinder 820 fixedly installed at the lower end of the support plate 32. A connecting plate 821 is fixedly installed on each of the telescopic sections on both sides of the double-outlet cylinder 820. The connecting plate 821 is fixedly connected to the corresponding slide plate 80.

[0049] like Figure 1 , Figure 4 and Figure 5 As shown, the driving component 9 includes a stepper motor 90. The two slide plates 80 are fixedly mounted on opposite sides of each other. The output shaft of the stepper motor 90 is connected to the corresponding drive roller 34 via a transmission belt 91.

[0050] like Figure 1 , Figure 2 and Figure 6 As shown, the lifting unit 7 includes two slide blocks 70 that are slidably mounted on the upper end of the base plate 12. Two optical shafts 71 are fixedly mounted on the upper end of the slide blocks 70. A cylinder 72 is also fixedly mounted on the upper end of the slide blocks 70. The telescopic section of the cylinder 72 is fixedly connected to the lower end of the worktable 30. A feed member 73 for driving the two slide blocks 70 to move is provided on the base plate 12.

[0051] like Figure 1 and Figure 2 As shown, the feed component 73 includes a linear module 730 fixedly installed on the upper end of the base plate 12. A push plate 731 is fixedly installed on the moving section of the linear module 730, and the lower end of the push plate 731 is fixedly connected to two slide blocks 70.

[0052] like Figures 1 to 6 As shown, during actual operation, the telescopic sections on both sides of the dual-outlet cylinder 820 extend or retract synchronously, driving the two slide plates 80 to move towards or away from each other along the support plate 32 via the connecting plate 821. The slide plates 80 drive the corresponding limit blocks 33 to move synchronously via the support column 81, thereby adjusting the distance between the two rows of limit blocks 33.

[0053] When processing a circular cross-section aluminum bar, the distance between the drive rollers 34 on the two rows of limit blocks 33 is adjusted to match the diameter of the bar. The bar is then placed directly between the two rows of drive rollers 34. The rotary table 31 makes the workpiece axis perpendicular to the direction of movement of the sanding belt 22. Then, cylinder 72 extends to push the worktable 30. The height of the worktable 30 is adjusted, and the linear module 730 is started to drive the slide 70, optical axis 71, cylinder 72, worktable 30, rotary table 31, and support plate 32 to move at a uniform speed through the push plate 731. At the same time, the stepper motor 90 drives the drive rollers 34 to rotate through the transmission belt 91. The drive rollers 34 drive the bar to rotate at a uniform speed around its own axis through friction to perform grinding.

[0054] When processing a square-section aluminum bar, adjust the spacing between the two rows of limit blocks 33 so that their upper surfaces form a continuous support plane. The drive rollers 34 are located on both sides of the bar and do not contact it. Place the bar on the upper surface of the limit blocks 33, start the negative pressure system, and the suction holes 330 generate negative pressure to adsorb and fix the bar. The rotary table 31 makes the workpiece axis perpendicular to the direction of movement of the sanding belt 22. The cylinder 1 72 adjusts the height, and the linear module 730 is started to drive the bar to move at a constant speed along the axis. At the same time, the cylinder 2 60 of the lower pressing part 6 is started to push the pressure plate 61 so that the sanding belt 22 is attached to the upper surface of the bar. After the wire drawing of one side is completed, release the adsorption. Rotate the bar ninety degrees and repeat the operation until all four sides are processed.

[0055] like Figure 1 , Figure 2 and Figure 3 As shown, the tensioning part 4 includes two left-right symmetrical drive plates 40 that are slidably installed at the front end of the triangular plate 11. A shaft plate 41 is fixedly installed on the lower part of the drive plate 40. Two tensioning rollers 42 are rotatably installed on the shaft plate 41. The two tensioning rollers 42 are staggered vertically and respectively fit with the upper and lower ends of the lower section of the sanding belt 22.

[0056] like Figure 1 , Figure 2 and Figure 3 As shown, the moving part 5 includes two synchronous pulleys 50 rotatably mounted on the front end of the triangular plate 11. The two synchronous pulleys 50 are driven by a synchronous belt 51. The two drive plates 40 are fixedly connected to the upper and lower sections of the synchronous belt 51, respectively.

[0057] like Figures 1 to 3 As shown, during actual operation, the operator adjusts the degree of wrapping of the sanding belt 22 around the round bar through the moving part 5. The motor 2 500 drives the synchronous wheel 50 to rotate, and the synchronous wheel 50 drives the synchronous belt 51 to rotate. The synchronous belt 51 drives the two drive plates 40 to move towards or away from each other along the triangular plate 11. The drive plates 40 drive the shaft plate 41 and the two tension rollers 42 to move synchronously. The two tension rollers 42 apply tension to the sanding belt 22 from the upper and lower directions respectively, so that the length of the lower horizontal section of the sanding belt 22 changes, thereby adjusting the contact arc length between the sanding belt 22 and the surface of the round bar, so that the sanding belt 22 forms a wrapping state that fits the arc surface of the round bar.

[0058] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0059] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0060] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0061] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A surface polishing machine for aluminum long bars, comprising a frame and a triangular plate mounted thereon, and a base plate mounted on the frame; characterized in that: The triangular plate is equipped with a grinding mechanism, and the base plate is equipped with a limiting mechanism. The grinding mechanism includes a housing fixedly installed at the front end of a triangular plate. Three rubber rollers are provided inside the housing. A sanding belt is driven on the rubber rollers. Two guide wheels are provided below the sanding belt and mounted on the frame. The triangular plate is provided with a pressing part and a tensioning part that slides on it. The triangular plate is also provided with a moving part. The limiting mechanism includes a lifting part that is slidably mounted on the upper part of the base plate. The lifting part is equipped with a worktable, and a rotating table is mounted on the upper part of the worktable. A support plate is mounted on the rotating section of the rotating table. Two rows of limiting components are slidably mounted on the upper part of the support plate. Each row of limiting components consists of multiple limiting blocks. Multiple suction holes are evenly opened on the upper end of the limiting blocks. A drive roller is mounted on each row of limiting blocks. An adjustment part is provided on the support plate, and a drive component is provided on the adjustment part. When in the round bar processing mode, the adjustment part adjusts the distance between the two rows of limit blocks so that the drive roller supports round bars of different diameters, and the moving part drives the tensioning part to adjust the sanding belt to wrap around the round bar, so as to achieve uniform grinding of the entire circumference of the round bar. When the square bar is being processed, the adjustment unit adjusts the distance between the two rows of limit blocks so that the upper surface of the limit blocks forms a supporting plane to adsorb and fix the square bar. The pressing unit pushes the sanding belt to fit against the surface of the square bar, thus achieving flat grinding of the square bar.

2. The aluminum long bar surface processing and polishing machine according to claim 1, characterized in that: The tensioning part includes two symmetrical drive plates that are slidably mounted on the front end of the triangular plate. A shaft plate is fixedly mounted on the lower part of the drive plate. Two tension rollers are rotatably mounted on the shaft plate. The two tension rollers are staggered vertically and respectively fit with the upper and lower ends of the lower section of the sanding belt.

3. The aluminum long bar surface processing and polishing machine according to claim 1, characterized in that: The lifting unit includes two slide blocks slidably mounted on the upper part of the base plate. Two optical shafts are fixedly mounted on the upper part of the slide blocks. A cylinder is also fixedly mounted on the upper part of the slide blocks. The telescopic section of the cylinder is fixedly connected to the lower part of the worktable. A feed component for driving the two slide blocks to move is provided on the base plate.

4. The surface processing and polishing machine for aluminum long bars according to claim 1, characterized in that: The adjustment unit includes a sliding plate, and two sets of limiting components are provided with sliding plates slidably mounted on the support plate on opposite sides. The opposing surfaces of the two sliding plates are fixedly mounted with pillars that correspond one-to-one with the corresponding limiting blocks. The pillars are fixedly connected to the corresponding limiting blocks. The support plate is provided with push-pull components that drive the two sliding plates to move.

5. The aluminum long bar surface processing and polishing machine according to claim 2, characterized in that: The moving part includes two synchronous pulleys rotatably mounted on the front end of the triangular plate. A synchronous belt drives the two synchronous pulleys together, and two drive plates are fixedly connected to the upper and lower sections of the synchronous belt, respectively.

6. The surface grinding machine for aluminum long bars according to claim 4, characterized in that: The push-pull component includes a double-outlet cylinder fixedly installed at the lower end of the support plate. A connecting plate is fixedly installed on each of the telescopic sections on both sides of the double-outlet cylinder, and the connecting plate is fixedly connected to the corresponding slide plate.

7. The surface grinding machine for aluminum long bars according to claim 4, characterized in that: The driving component includes a stepper motor. Stepper motors are fixedly installed on the opposite surfaces of the two slides. The output shaft of the stepper motor is connected to the corresponding drive roller via a transmission belt.

8. The surface grinding machine for aluminum long bars according to claim 3, characterized in that: The feed component includes a linear module fixedly mounted on the upper part of the base plate, a push plate fixedly mounted on the moving section of the linear module, and the lower end of the push plate fixedly connected to two slide blocks.

9. The surface grinding machine for aluminum long bars according to claim 5, characterized in that: Motor 1 and Motor 2 are fixedly installed on the frame. The output shaft of Motor 1 is fixedly connected to one of the rubber rollers, and the output shaft of Motor 2 is fixedly connected to one of the synchronous pulleys.

10. The aluminum long bar surface processing and polishing machine according to claim 1, characterized in that: The pressing part includes a fixed seat fixedly installed at the front end of the triangular plate, a cylinder two fixedly installed at the front end of the fixed seat, and a pressure plate fixedly installed on the telescopic section of the cylinder two.

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