A limiting type supporting mechanism of an aluminum profile polishing machine

Abstract

The application discloses a limiting type bearing mechanism of an aluminum profile polishing machine, which comprises a fixed base, a lifting platform, a pair of moving bases and a pair of inner clamping mechanisms. A pair of guide sliding rods are fixed to the two ends of the fixed base, and the outer ends of the two pairs of guide sliding rods are fixed with limiting plates. The lifting platform is lifted up and down on the top wall of the fixed base. The pair of moving bases are respectively slid on the two pairs of guide sliding rods, and the sides of the pair of moving bases close to each other are respectively rotationally provided with rotary discs, and the outer side walls of the pair of rotary discs are respectively provided with installation grooves. The pair of inner clamping mechanisms are respectively fixed on the pair of rotary discs, and the inner clamping mechanism comprises an inner extension rod, a plurality of driven arms, a plurality of driving arms and a plurality of inner clamping plates, and the outer end of the inner extension rod is fixed with a fixed disc matched with the installation groove. The two-end inner clamping mechanism is adopted to support the hollow aluminum profile inner cavity from multiple points, the outer wall is not blocked by the clamping plate, the profile does not need to be re-clamped after secondary turning, the polishing process time is greatly shortened, and the production line processing efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of aluminum profile polishing equipment, specifically relating to a limiting support mechanism for an aluminum profile polishing machine. Background Technology

[0002] Polishing machines are commonly used for mechanical grinding, polishing, and waxing. Their working principle involves an electric motor driving a sponge or wool polishing disc mounted on the machine to rotate at high speed, rubbing the surface to be polished to remove paint contamination, oxide layers, and shallow scratches. Polishing machines are also needed in the production of aluminum profiles. Before using an aluminum profile polishing machine, a limiting and supporting mechanism is required to fix the aluminum profile. However, aluminum profiles have relatively low hardness, and excessive force during fixing can cause deformation and damage, especially for hollow square tubular aluminum profiles. Improper clamping can easily cause the sidewalls to dent inwards.

[0003] In the prior art, CN202321058507.3 discloses a limiting support mechanism for an aluminum profile polishing machine. By pressing down on the aluminum profile, the fixed frame, the first limiting shaft, and the spring push the clamping plate to hold and fix the aluminum profile. The lifting mechanism is activated to push the aluminum profile away from multiple clamping plates. The moving component is activated to drive the rotating mechanism through the second limiting shaft, the slider, and the base to engage with the aluminum profile. The rotating mechanism is activated to flip the aluminum profile, and then the clamping plate is driven to disengage from the aluminum profile, thus completing the flipping and polishing work. This achieves the goal of conveniently clamping and fixing the aluminum profile during polishing, and also facilitates automatic flipping of the aluminum profile, avoiding the problem of damage to the aluminum profile due to excessive force during fixing, and the cumbersome, time-consuming, and labor-intensive process of manually flipping the aluminum profile.

[0004] When clamping and fixing aluminum profiles, the above-mentioned technology mainly uses two sets of clamping plates to clamp the aluminum profiles from the outside. Since the area clamped by the clamping plates is blocked by the clamping plates, this area cannot be polished. Therefore, it is necessary to adjust the clamping position of the aluminum profiles a second time in order to polish the aluminum profiles completely. Due to the additional step of adjusting the clamping position, the polishing efficiency of the entire aluminum profiles is greatly reduced. Summary of the Invention

[0005] The purpose of this invention is to provide a limiting support mechanism for an aluminum profile polishing machine, so as to solve the problem that the existing aluminum profile polishing support mechanism uses an external clamping plate to hold the outer wall of the profile, the clamping area is blocked, the full circumference polishing cannot be completed in one go, and the profile needs to be adjusted twice, resulting in low processing efficiency.

[0006] To achieve the above objectives, the present invention provides a limiting support mechanism for an aluminum profile polishing machine, comprising: a fixed seat, a lifting platform, a pair of movable seats, and a pair of internal clamping mechanisms.

[0007] Both ends of the fixed base are fixed with a pair of guide slide rods, and the outer ends of the two pairs of guide slide rods are fixed with limit plates. The lifting platform moves up and down on the top wall of the fixed base. A pair of movable seats slide on the two pairs of guide slide rods respectively, and a rotating disk is rotatably provided on the side of the pair of movable seats that are close to each other. The outer walls of the pair of rotating disks are each chiseled with a mounting groove.

[0008] A pair of internal clamping mechanisms are respectively fixed on a pair of rotating disks. The internal clamping mechanism includes: an inner extension rod, multiple pairs of driven arms, multiple pairs of driving arms, and multiple pairs of internal clamping plates. The outer end of the inner extension rod is fixed with a fixed plate adapted to the mounting groove. Multiple pairs of receiving slots are carved on the two side walls of the inner extension rod. One pair of each of the multiple pairs of driven arms and driving arms is rotatably connected to each other and is respectively located in the multiple pairs of receiving slots. The ends of the driven arms and driving arms that are far apart from each other rotate and slide in the receiving slots. The multiple pairs of internal clamping plates rotate at the rotatable connection points of the multiple pairs of driven arms and driving arms. The control rod slides inside the inner extension rod and is provided with multiple pushers for driving the multiple pairs of driving arms to slide. A pair of push plates are fixed on both sides of the rear end of the control rod, and the pair of push plates extend from the two side walls of the inner extension rod.

[0009] In one or more embodiments of the present invention, a plurality of C-shaped supports and a pair of first cylinders are fixed at equal intervals at the bottom of the fixed base, and the output ends of the pair of first cylinders extend from the top wall of the fixed base and are fixed to the bottom wall of the lifting platform. The plurality of C-shaped supports are used to fix the fixed base to the polishing machine and to raise the fixed base to a certain height, and the pair of first cylinders are used to drive the lifting platform to move up and down.

[0010] In one or more embodiments of the present invention, both ends of the bottom wall of the fixed base are chiseled with embedded grooves, and a second cylinder is fixed in each of the pair of embedded grooves. The output ends of the pair of second cylinders are respectively fixed on a pair of movable seats. The embedded grooves are used to fix the second cylinders therein, and the pair of second cylinders are synchronously driven, so that the pair of movable seats move closer or further apart.

[0011] In one or more embodiments of the present invention, an inverted U-shaped groove is formed on the sidewall of each of the two recessed grooves at their opposite ends, and the output end of the second cylinder extends outward from the inverted U-shaped groove. A U-shaped locking block is fixed to the bottom of each of the two inverted U-shaped grooves. The inverted U-shaped groove is used so that when the second cylinder is fixed in the recessed groove, the output end of the second cylinder extends into the inverted U-shaped groove from the bottom wall of the inverted U-shaped groove, and the vertical spatial position of the output end of the second cylinder is limited by the U-shaped locking block.

[0012] In one or more embodiments of the present invention, each of the pair of movable seats is fixed with a guide sleeve adapted to a pair of guide slide rods. The movable seats slide on the pair of guide slide rods via the pair of guide sleeves. A shaft groove is cut into each movable seat. A shaft adapted to the shaft groove is fixed on the rotating disk. A drive motor is fixed on the rear side wall of the movable seat, and the output end of the drive motor is fixedly connected to the shaft. The rotating disk rotates within the shaft groove via the shaft and is driven to rotate by the drive motor.

[0013] In one or more embodiments of the present invention, the driven arm and the driving arm are respectively fixed to a fixed shaft and a movable shaft at both ends, and the two ends of the pusher rotate on the movable shafts on both sides. Rotary grooves and elongated sliding grooves adapted to the fixed shaft and the movable shaft are chiseled on the upper and lower sidewalls of multiple pairs of receiving elongated slots. The end of the driven arm away from the driving arm rotates in a pair of rotary grooves through the two ends of the fixed shaft, and the end of the driving arm away from the driven arm slides in a pair of elongated sliding grooves through the upper and lower ends of the movable shaft. Thus, when the movable shaft slides in the direction of the fixed shaft, it causes the connection between the driven arm and the driving arm to open outwards, thereby causing the inner clamping plate to open outwards and clamp onto the inner wall of the aluminum profile. Furthermore, the driven arm and the driving arm are of the same length.

[0014] In one or more embodiments of the present invention, a connecting shaft is fixed to the end of the driven arm near the driving arm, and the end of the driving arm near the driven arm rotates on the connecting shaft. A bearing seat is fixed to the inner wall of the inner clamping plate, and the bearing seat also rotates on the connecting shaft. The driven arm and the driving arm are rotatably connected via the connecting shaft, and the inner clamping plate rotates on the connecting shaft via the bearing seat, thereby rotatably connecting at the connection point between the driven arm and the driving arm.

[0015] In one or more embodiments of the present invention, a U-shaped fastener is also fixed on the outer wall of the bearing seat. A pair of arc-shaped elastic plates are symmetrically fixed on the U-shaped fastener. The pair of arc-shaped elastic plates are located on the side of the driven arm and the driving arm away from the inner clamping plate and are fixed with fixing plates. The U-shaped fastener is used to fix the pair of arc-shaped elastic plates on the outer wall of the bearing seat. When the driven arm and the driving arm drive the inner clamping plate to open outward, the side walls of the driven arm and the driving arm will contact the pair of fixing plates respectively and squeeze the pair of arc-shaped elastic plates to undergo elastic deformation. Under the combined action of the elastic force of the pair of arc-shaped elastic plates, the inner clamping plate always maintains a parallel state when it is opened outward. Each pair of the long storage slots has a limiting groove cut into its upper and lower side walls to fit the inner clamping plate. The limiting groove is used to limit the final position of the driven arm and the driving arm when they are reset, so that when the driven arm and the driving arm are reset to the final position, they are in a large obtuse angle state. This makes it convenient for the driven arm and the driving arm to push outward from the connection point when they are in a subsequent angle state.

[0016] In one or more embodiments of the present invention, the control rod is provided with push rings and reset rings fixed on both sides of the plurality of push members, and a first spring is also provided between the push rings and the push members. A second spring is provided between the side of the pair of push plates away from the push members and the inner wall of the inner extension rod. When the inner extension rod is inserted into the aluminum profile, the end of the aluminum profile pushes the push plate toward the fixed plate, thereby causing the control rod to move toward the fixed plate. The control rod drives the plurality of push rings on it to compress the plurality of first springs. The rebound force of the plurality of first springs after being compressed drives the push members to move toward the fixed plate. The two ends of the push members drive the pair of moving axes on both sides to slide toward the fixed axis, thereby causing the driven arm and the driving arm to push the inner clamping plate outward. At the same time, elastic clamping is achieved by the first spring, and there is a clearance fit between the push members and the control rod. When the elastic force of the second spring is used to release the aluminum profile, it pushes the control rod to slide in the opposite direction to the fixed plate. The control rod pushes the plurality of push members to reset through the plurality of reset rings on it, thereby causing the driven arm and the driving arm to rotate and reset, thereby causing the inner clamping plate to reset.

[0017] Compared with the prior art, the present invention uses a double-end internal clamping mechanism to support the hollow aluminum profile from multiple points inside the cavity, with no clamping plates on the outer wall to block it. This eliminates the need for secondary adjustment and re-clamping of the profile, significantly shortening the polishing process time and improving the processing efficiency of the production line. Attached Figure Description

[0018] Figure 1 This is a perspective view of a limiting support mechanism for an aluminum profile polishing machine according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the fixing base in one embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the movable seat and the inner clamping mechanism in one embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the movable seat and the rotating disk in one embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the internal clamping mechanism in one embodiment of the present invention;

[0023] Figure 6 This is a cross-sectional view of the internal clamping mechanism in one embodiment of the present invention;

[0024] Figure 7 for Figure 6 Schematic diagram of the structure at point A;

[0025] Figure 8 This is a schematic diagram of the structure of the driven boom, the driving boom, and the inner clamping plate in one embodiment of the present invention;

[0026] Figure 9 This is a schematic diagram of the control rod and pusher in one embodiment of the present invention.

[0027] Explanation of key figure labels:

[0028] 1. Fixed base; 101. C-shaped support leg; 102. Lifting platform; 103. First cylinder; 104. Guide slide rod; 105. Limiting plate; 106. Embedded groove; 107. Inverted U-shaped groove; 108. U-shaped locking block; 109. Second cylinder; 2. Moving base; 201. Guide sleeve; 202. Drive motor; 203. Rotary disk; 204. Shaft; 205. Shaft groove; 206. Mounting groove; 3. Internal clamping mechanism; 301. Inner extension rod; 302. Fixed disk; 303. Storage length 304. Groove; 305. Long strip groove; 306. Driven arm; 307. Driving arm; 308. Fixed shaft; 309. Connecting shaft; 310. Moving shaft; 311. Inner clamping plate; 312. Shaft seat; 313. U-shaped fixing piece; 314. Arc-shaped elastic plate; 315. Fixed plate; 316. Limiting groove; 317. Control rod; 318. Pushing piece; 319. Pushing ring; 320. Reset ring; 321. First spring; 322. Second spring; 323. Pushing plate. Detailed Implementation

[0029] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0030] like Figures 1 to 9 As shown, a limiting support mechanism for an aluminum profile polishing machine according to an embodiment of the present invention includes: a fixed base 1, a lifting platform 102, a pair of movable bases 2 and a pair of internal clamping mechanisms 3.

[0031] like Figures 1 to 9 As shown, a pair of guide slide rods 104 are fixed at both ends of the fixed base 1, and a limit plate 105 is fixed at the outer end of each pair of guide slide rods 104. The lifting platform 102 moves up and down on the top wall of the fixed base 1. A pair of movable seats 2 slide on the two pairs of guide slide rods 104 respectively, and a rotating disk 203 is rotatably provided on the side of each pair of movable seats 2 that is close to each other. A mounting groove 206 is carved on the outer wall of each pair of rotating disks 203.

[0032] The lifting platform 102 first places the aluminum profile on the lifting platform 102 when clamping it, and provides vertical support for the aluminum profile during grinding. When the aluminum profile needs to be rotated, the lifting platform 102 is moved downwards, and after rotation, the lifting platform 102 is moved upwards to the bottom of the aluminum profile. Two pairs of guide rods 104 guide the sliding of the moving seat 2, and the limiting plate 105 limits the outward sliding position of the moving seat 2. The moving seat 2 is used to clamp the aluminum profile when the inner clamping mechanisms 3 move closer together. The rotating disk 203 is used to rotate the clamped aluminum profile. The mounting groove 206 is used to fix the mounting disk 302 on it. The inner clamping mechanism 3 can clamp aluminum profiles of a certain size, and the inner clamping mechanism 3 is detachably fixed to the rotating disk 203. Different sizes of inner clamping mechanisms 3 can be replaced according to usage needs.

[0033] like Figures 1 to 9 As shown, a pair of inner clamping mechanisms 3 are respectively fixed on a pair of rotating disks 203. The inner clamping mechanism 3 includes: an inner extension rod 301, multiple pairs of driven arms 306, multiple pairs of driving arms 307, and multiple pairs of inner clamping plates 311. The outer end of the inner extension rod 301 is fixed with a fixing plate 302 that matches the mounting groove 206. Multiple pairs of long slots 303 are carved on both sides of the inner extension rod 301. One pair of each of the multiple pairs of driven arms 306 and driving arms 307 is rotatably connected to each other and is respectively located in the multiple pairs of long slots 303. The driven arm 306 and the driving arm 307 rotate and slide in the long slot 303 respectively at their far ends. Multiple pairs of inner clamping plates 311 rotate at the rotatable connection points of multiple pairs of driven arms 306 and driving arms 307. The control rod 317 slides in the inner extension rod 301 and is provided with multiple pushers 318 for driving multiple pairs of driving arms 307 to slide. A pair of push plates 323 are fixed on both sides of the rear end of the control rod 317 and the pair of push plates 323 extend from the two side walls of the inner extension rod 301 respectively.

[0034] In use, the movable seat 2 drives the inner extension rod 301 to extend into the aluminum profile tube. When the aluminum profile contacts a pair of push plates 323 and moves the push plates 323 towards the fixed plate 302, the control rod 317 drives multiple pushers 318 on it to move towards the fixed plate 302. The two ends of the pushers 318 drive the end of a pair of active arms 307 on both sides away from the driven arm 306 to slide towards the driven arm 306. This causes the driven arm 306 and the active arm 307 to push the inner clamping plate 311 outward, so that the inner clamping plate 311 is clamped on the inner wall of the aluminum profile. This is how the aluminum profile is clamped.

[0035] like Figures 1 to 2As shown, the bottom of the fixed base 1 is fixed with multiple C-shaped support legs 101 and a pair of first cylinders 103 at equal intervals, and the output ends of the pair of first cylinders 103 extend from the top wall of the fixed base 1 and are fixed to the bottom wall of the lifting platform 102. The multiple C-shaped support legs 101 are used to fix the fixed base 1 on the polishing machine and raise the fixed base 1 to a certain height, and the pair of first cylinders 103 are used to drive the lifting platform 102 to move up and down.

[0036] like Figures 1 to 2 As shown, both ends of the bottom wall of the fixed base 1 are chiseled with embedded grooves 106. A second cylinder 109 is fixed in each of the two embedded grooves 106. The output ends of the two second cylinders 109 are respectively fixed on a pair of movable seats 2. The embedded grooves 106 are used to fix the second cylinders 109 in them. The two second cylinders 109 are synchronously driven, and the two movable seats 2 are driven to move closer or further apart in a synchronous manner.

[0037] like Figures 1 to 2 As shown, each of the two recessed grooves 106 has an inverted U-shaped groove 107 carved on its opposite sidewall. The output end of the second cylinder 109 extends outward from the inverted U-shaped groove 107. A U-shaped locking block 108 is fixed to the bottom of each of the two inverted U-shaped grooves 107. The inverted U-shaped groove 107 is used so that when the second cylinder 109 is fixed in the recessed groove 106, the output end of the second cylinder 109 extends into the inverted U-shaped groove 107 from the bottom wall of the inverted U-shaped groove 107, and the U-shaped locking block 108 limits the vertical position of the output end of the second cylinder 109.

[0038] like Figures 1 to 4 As shown, each of the pair of movable seats 2 is fixed with a guide sleeve 201 that matches a pair of guide slide rods 104. The movable seats 2 slide on the pair of guide slide rods 104 via the guide sleeves 201. A shaft groove 205 is cut into the movable seats 2. A shaft 204 that matches the shaft groove 205 is fixed on the rotating disk 203. A drive motor 202 is fixed on the rear side wall of the movable seats 2, and the output end of the drive motor 202 is fixedly connected to the shaft 204. The rotating disk 203 rotates within the shaft groove 205 via the shaft 204, and is driven to rotate by the drive motor 202.

[0039] like Figures 3 to 8As shown, a fixed shaft 308 and a movable shaft 310 are fixed at both ends of the boom 306 and the drive boom 307, respectively. The two ends of the pusher 318 rotate on the movable shaft 310 on both sides. Furthermore, the upper and lower side walls of the multiple pairs of receiving long grooves 303 are all chiseled with rotating grooves 304 and long grooves 305 that are adapted to the fixed shaft 308 and the movable shaft 310. The driven arm 306, at the end furthest from the driving arm 307, rotates within a pair of rotating slots 304 via the two ends of the fixed shaft 308. The driving arm 307, at the end furthest from the driven arm 306, slides within a pair of elongated slots 305 via the upper and lower ends of the movable shaft 310. Thus, when the movable shaft 310 slides toward the fixed shaft 308, it causes the connection between the driven arm 306 and the driving arm 307 to open outward, thereby causing the inner clamping plate 311 to open outward and clamp onto the inner wall of the aluminum profile. In addition, the driven arm 306 and the driving arm 307 are of the same length.

[0040] like Figures 3 to 8 As shown, a connecting shaft 309 is fixed to one end of the driven arm 306 near the driving arm 307. The end of the driving arm 307 near the driven arm 306 rotates on the connecting shaft 309. A bearing seat 312 is fixed to the inner wall of the inner clamping plate 311, and the bearing seat 312 also rotates on the connecting shaft 309. The driven arm 306 and the driving arm 307 are rotatably connected through the connecting shaft 309, and the inner clamping plate 311 rotates on the connecting shaft 309 through the bearing seat 312, thus rotatably connecting at the connection point of the driven arm 306 and the driving arm 307.

[0041] like Figures 3 to 8 As shown, a U-shaped fastener 313 is also fixed on the outer wall of the bearing seat 312. A pair of arc-shaped elastic plates 314 are symmetrically fixed on the U-shaped fastener 313. The pair of arc-shaped elastic plates 314 are located on the side of the driven arm 306 and the driving arm 307 away from the inner clamping plate 311, and a fixing plate 315 is fixed on each side. The U-shaped fastener 313 is used to fix the pair of arc-shaped elastic plates 314 on the outer wall of the bearing seat 312. When the driven arm 306 and the driving arm 307 drive the inner clamping plate 311 to open outward, the side walls of the driven arm 306 and the driving arm 307 will contact the pair of fixing plates 315 respectively, and squeeze the pair of arc-shaped elastic plates 314 to undergo elastic deformation. Under the combined action of the elastic force of the pair of arc-shaped elastic plates 314, the inner clamping plate 311 always maintains a parallel state when it is opened outward. Multiple pairs of long slots 303 have limiting slots 316 cut into their upper and lower side walls to fit the inner clamping plate 311. The limiting slots 316 are used to limit the upper and lower ends of the inner clamping plate 311 in the non-clamped state. The upper and lower ends of the inner clamping plate 311 are set in the limiting slots 316, thereby limiting the final position of the driven arm 306 and the driving arm 307 when they are reset. When the driven arm 306 and the driving arm 307 are reset to the final position, they are in a large obtuse angle state. This makes it convenient for the driven arm 306 and the driving arm 307 to push outward from the connection point when they are in a subsequent angle.

[0042] like Figures 3 to 9 As shown, a push ring 319 and a reset ring 320 are fixed on both sides of the control lever 317 and multiple push members 318, and a first spring 321 is also provided between the push ring 319 and the push member 318. A second spring 322 is provided between the side of a pair of push plates 323 away from the push member 318 and the inner wall of the inner extension rod 301. When the inner extension rod 301 is inserted into the aluminum profile, the end of the aluminum profile pushes the push plate 323 toward the fixed plate 302, thereby causing the control rod 317 to move toward the fixed plate 302. The control rod 317 drives multiple push rings 319 on it to compress multiple first springs 321. The rebound force of the multiple first springs 321 after being compressed drives the push member 318 to move toward the fixed plate 302. The two ends of the push member 318 drive a pair of moving shafts 310 on both sides to slide toward the fixed shaft 308, thereby causing the driven arm 306 and the driving arm 307 to push the inner clamping plate 311 outward. At the same time, elastic clamping is achieved through the first springs 321, and there is a clearance fit between the push member 318 and the control rod 317. When the elastic force of the second spring 322 is used to release the aluminum profile, it pushes the control rod 317 to slide in the opposite direction to the fixed plate 302. The control rod 317 pushes the multiple pushers 318 to reset through the multiple reset rings 320 on it, thereby driving the driven arm 306 and the driving arm 307 to rotate and reset, thereby driving the inner clamping plate 311 to reset.

[0043] Working principle: It adopts a composite support structure with a bottom lifting platform 102 for support and internal support and clamping at both ends. It clamps the pipe from multiple points inside, and the outer wall is completely unobstructed, so that the full circumference polishing can be completed in one go.

[0044] In use, a pair of first cylinders 103 synchronously lift the lifting platform 102 to the working height. The top surface of the lifting platform 102 supports the bottom of the hollow aluminum profile, achieving vertical pre-support. The second cylinder 109 synchronously retracts, driving the two moving seats 2 to move towards each other. The pair of moving seats 2 drive a pair of inner clamping mechanisms 3 to approach the two ends of the aluminum profile, so that the inner extension rod 301 extends horizontally into the inner cavity of the left and right ends of the hollow aluminum profile. The end face of the profile presses the push plates 323 on both sides of the inner extension rod 301. This causes the control lever 317 to move toward the fixed plate 302. The control lever 317 drives the multiple push rings 319 on it to compress the multiple first springs 321. The rebound force of the multiple first springs 321 after being compressed drives the push member 318 to move toward the fixed plate 302. The two ends of the push member 318 drive a pair of moving shafts 310 on both sides to slide toward the fixed shaft 308. This causes the driven arm 306 and the driving arm 307 to push the inner clamping plate 311 outward, so that multiple pairs of inner clamping plates 311 are simultaneously clamped on the inner walls of both ends of the aluminum profile, thereby clamping the aluminum profile. Then the upper end surface of the aluminum profile can be polished.

[0045] When it is necessary to change the surface of the aluminum profile, the first cylinder 103 is controlled to retract synchronously, which drives the lifting platform 102 to move downward and separate from the bottom surface of the aluminum profile; the two drive motors 202 on both sides operate synchronously, which drive the rotating disk 203 and the entire set of inner clamping mechanism 3 through the shaft 204 to change the surface of the aluminum profile.

[0046] After the polishing process is completed, the second cylinders 109 on both sides extend outwards simultaneously, pushing the moving seats 2 away from each other, and the inner extension rod 301 is pulled out from the inner cavity of the aluminum profile; the second spring 322 rebounds, pushing the control rod 317 back towards the end of the profile, the reset ring 320 pulls the pusher 318 to move backwards, and the moving shaft 310 slides along the long slide groove 305 away from the driven arm 306. The driven arm 306 and the driving arm 307 retract inwards, and the inner clamping plate 311 retracts into the limiting groove 316.

[0047] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0048] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A limiting support mechanism for an aluminum profile polishing machine, characterized in that, include: A fixed base, wherein a pair of guide slide rods are fixed at both ends of the fixed base, and a limit plate is fixed at the outer end of each pair of guide slide rods; The lifting platform moves up and down on the top wall of the fixed base; A pair of movable seats slide on two pairs of guide rods respectively, and a rotating disk is rotatably provided on the side of the pair of movable seats that are close to each other. A mounting groove is carved on the outer wall of the pair of rotating disks. and A pair of internal clamping mechanisms are fixed on a pair of rotating disks. The internal clamping mechanism includes: an inner extension rod, multiple pairs of driven arms, multiple pairs of driving arms, and multiple pairs of internal clamping plates. The outer end of the inner extension rod is fixed with a fixed plate adapted to the mounting groove. Multiple pairs of receiving slots are carved on the two side walls of the inner extension rod. One pair of each of the multiple pairs of driven arms and driving arms is rotatably connected to each other and is respectively located in the multiple pairs of receiving slots. The ends of the driven arms and driving arms that are far apart from each other rotate and slide in the receiving slots. The multiple pairs of internal clamping plates rotate at the rotatable connection points of the multiple pairs of driven arms and driving arms. The control rod slides inside the inner extension rod and is provided with multiple pushers for driving the multiple pairs of driving arms to slide. A pair of push plates are fixed on both sides of the rear end of the control rod, and the pair of push plates extend from the two side walls of the inner extension rod.

2. The limiting support mechanism of an aluminum profile polishing machine according to claim 1, characterized in that, The bottom of the fixed base is fixed with multiple C-shaped support legs and a pair of first cylinders at equal intervals, and the output ends of the pair of first cylinders extend from the top wall of the fixed base and are fixed to the bottom wall of the lifting platform.

3. The limiting support mechanism of an aluminum profile polishing machine according to claim 1, characterized in that, Both ends of the bottom wall of the fixed base are chiseled with embedded grooves, and a second cylinder is fixed in each of the pair of embedded grooves. The output ends of the pair of second cylinders are respectively fixed on a pair of movable bases.

4. The limiting support mechanism of an aluminum profile polishing machine according to claim 3, characterized in that, Each of the two embedded grooves has an inverted U-shaped groove carved on the side wall at the opposite end, and the output end of the second cylinder extends outward from the inverted U-shaped groove. A U-shaped locking block is fixed to the bottom of each of the two inverted U-shaped grooves.

5. The limiting support mechanism of an aluminum profile polishing machine according to claim 1, characterized in that, Each of the two movable seats is fixed with a guide sleeve that matches a pair of guide slide rods, and the movable seat is chiseled with a shaft groove. The rotating disk is fixed with a shaft that matches the shaft groove. A drive motor is fixed on the rear side wall of the movable seat, and the output end of the drive motor is fixedly connected to the shaft.

6. The limiting support mechanism of an aluminum profile polishing machine according to claim 1, characterized in that, The driven arm and the driving arm are respectively fixed with a fixed shaft and a moving shaft at both ends. The two ends of the pusher rotate on the moving shafts on both sides. The upper and lower side walls of the multiple pairs of receiving long slots are all chiseled with rotating slots and long sliding slots that are adapted to the fixed shaft and the moving shaft.

7. The limiting support mechanism of an aluminum profile polishing machine according to claim 1, characterized in that, The driven arm is fixed with a connecting shaft at one end near the driving arm, and the driving arm rotates on the connecting shaft at one end near the driven arm. A bearing seat is fixed on the inner wall of the inner clamping plate, and the bearing seat also rotates on the connecting shaft.

8. The limiting support mechanism of an aluminum profile polishing machine according to claim 7, characterized in that, A U-shaped fastener is also fixed on the outer wall of the bearing seat. A pair of arc-shaped elastic plates are symmetrically fixed on the U-shaped fastener. The pair of arc-shaped elastic plates are fixed with a fixing plate on the side of the driven arm and the driving arm away from the inner clamping plate. Limiting grooves that are adapted to the inner clamping plate are chiseled on the upper and lower side walls of the multiple pairs of storage slots.

9. The limiting support mechanism of an aluminum profile polishing machine according to claim 1, characterized in that, The control rod has a push ring and a reset ring fixed on both sides of the multiple pushers, and a first spring is also provided between the push ring and the pusher.

10. The limiting support mechanism of an aluminum profile polishing machine according to claim 1, characterized in that, A second spring is provided between the side of the push plate away from the push member and the inner wall of the inner extension rod.

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