A contact-type aluminum profile surface polishing equipment

Abstract

This invention relates to the field of grinding, specifically to a contact-type aluminum profile surface grinding device, including a frame and a grinding cylinder; a rotating ring is rotatably mounted inside the grinding cylinder; two sanding belts are symmetrically arranged on the rotating ring; a guiding device is provided on the rear side of the grinding cylinder; the guiding device includes a mounting plate, a main rod, a sleeve, an auxiliary component, and a limiting component; the auxiliary component includes a front rod, a rear rod, and a locking rod. When the main rod moves forward toward the grinding cylinder, the limiting component causes the sleeve to move backward a preset distance relative to the main rod, so that the front rod and the rear rod are close to the main rod, facilitating the passage of the auxiliary component through the two sanding belts. When the auxiliary component passes through the two sanding belts, the sleeve moves forward to its original position, and the aluminum tube and the front rod press against and prevent the rear rod from continuing to approach the main rod through the locking rod. When the aluminum tube pushes the main rod through the two sanding belts through the locking rod and the front rod, the rear rod, with its front end away from the main rod and its rear end close to the main rod, first spreads the two sanding belts apart to facilitate the subsequent insertion of the aluminum tube, improving grinding efficiency.

Description

Technical Field

[0001] This invention relates to the field of polishing, and more specifically to a contact-type aluminum profile surface polishing device. Background Technology

[0002] Grinding and polishing refers to a processing method that uses mechanical means to reduce the surface roughness of a workpiece in order to obtain a bright and smooth surface. After aluminum profiles are produced, they need to be ground. When grinding tubular aluminum profiles such as aluminum tubes, two abrasive belts are often used to hold the aluminum tube and drive the two abrasive belts to rotate around the aluminum tube to grind the surface of the aluminum tube.

[0003] In the prior art, such as the Chinese patent with announcement number CN212371860U entitled "An Automatic CNC Pipe Sanding Machine", the disclosed technical solution describes that the polishing assembly includes a polishing disc and a turntable power. The polishing disc includes a sanding turntable connected to the turntable power transmission and two sanding belts rotatably set on the disc surface of the sanding turntable. The center of the sanding turntable is provided with a through hole for the workpiece to pass through. The two sanding belts are located on both sides of the center of the through hole. During grinding and polishing, one end of the tubular workpiece is inserted between the two sanding belts. The two sanding belts clamp the tube and rotate to grind the tube. However, the distance between the two sanding belts is usually smaller than the outer diameter of the tube. When inserting the tubular workpiece between the two sanding belts, it is necessary to find a certain angle to squeeze the two sanding belts apart before inserting it. This is inconvenient in operation and affects the grinding and polishing efficiency of the tube. Summary of the Invention

[0004] This invention provides a contact-type aluminum profile surface polishing device to solve the above-mentioned problems.

[0005] The present invention provides a contact-type aluminum profile surface grinding device, which adopts the following technical solution: a contact-type aluminum profile surface grinding device, including a frame and a grinding cylinder.

[0006] The rack is set up at the front and back.

[0007] The grinding cylinder is fixed to the frame at both ends, with its axis positioned front and rear. A rotating ring is mounted inside the grinding cylinder. Two sanding belts are symmetrically arranged on the rotating ring, running parallel to each other. A support device is located on the front side of the grinding cylinder, and a guide device is located on the rear side.

[0008] The guiding device includes a mounting plate, a main rod, a sleeve, auxiliary components, and a limiting component. The mounting plate is rotatably mounted on the rear end of the grinding cylinder via a hinge assembly. The main rod and the grinding cylinder are coaxial and slidably mounted on the mounting plate. The sleeve is positioned between the grinding cylinder and the mounting plate. The sleeve is fitted onto the main rod. The sleeve and the main rod are in sliding engagement, with the front end of the sleeve positioned behind the front end of the main rod. A first spring connects the sleeve and the main rod.

[0009] Multiple auxiliary components are provided, distributed circumferentially along the main rod. These components include a front rod, a rear rod, and a locking rod. The front rod is angled forward and backward, with its front end close to the main rod and its rear end away from it. The rear rod is located behind the front rod. The rear rod is also angled forward and backward, with its front end away from the main rod and its rear end close to it. The front end of the front rod is rotatably connected to the front end of the main rod, and its rear end is rotatably connected to the front end of the rear rod. The rear end of the rear rod is rotatably connected to the front end of a sleeve. The locking rod is coaxially fixed to the front end of the rear rod. The locking rod and the front rod form a V-shape with the larger end facing forward.

[0010] The limiting component is used to move the sleeve backward relative to the main rod by a preset distance when the main rod moves forward toward the grinding cylinder, so that the front rod and the rear rod are close to the main rod, making it easier for the auxiliary component to pass through the two sanding belts. When the auxiliary component passes through the two sanding belts, the sleeve moves forward to reset, so that the front rod and the rear rod are away from the main rod and form a V-shape with the opening facing the axis of the main rod.

[0011] Furthermore, the limiting assembly includes a limiting ring. The limiting ring is located between the sleeve and the mounting plate. The limiting ring is fitted onto the main rod. The limiting ring is a magnet and is magnetically connected to the mounting plate. A second spring connects the limiting ring and the sleeve.

[0012] Furthermore, a third spring connects the mounting plate and the main rod.

[0013] Furthermore, the hinge assembly includes a first post and a second post. The first post is positioned at the rear of the grinding cylinder. The front end of the first post is fixed to the upper end of the grinding cylinder. The rear end face of the first post is designated as the first mating surface. The second post is positioned at the rear of the first post. The second post is positioned at the rear, with its front end abutting against the rear end of the first post, and its rear end fixedly connected to the mounting plate. The front end face of the second post is designated as the second mating surface. A pivot is provided between the second post and the first post. The pivot is fixed to the upper end of the first mating surface. The pivot and the upper end of the second mating surface are rotatably engaged. When the second post rotates around the pivot so that the first and second mating surfaces coincide, the first and second posts are coaxial, and the main rod and the grinding cylinder are also coaxial.

[0014] Furthermore, a locking device is provided between the mounting plate and the hinge assembly. This locking device is used to, after the aluminum tube is inserted between the two sanding belts, manually maintain the relative position of the main rod and the mounting plate, then drive the mounting plate to rotate the main rod upwards, causing the second column to rotate upwards around the axis of rotation, locking the main rod and the mounting plate. This puts the third spring in a charged state, causing the mounting plate to rotate the main rod downwards. When the main rod and the grinding cylinder are coaxial, the lock between the main rod and the mounting plate is released.

[0015] Furthermore, the locking device includes a first locking lever, a second locking lever, and a locking groove.

[0016] The first locking rod is disposed along the axis of the second column. The first locking rod is slidably installed inside the second column along the axis of the second column. The end of the first locking rod near the mounting plate is wedge-shaped, and the end away from the mounting plate extends between the first mating surface and the second mating surface.

[0017] The second locking rod is radially arranged along the main rod. The second locking rod is slidably mounted within the mounting plate along the radial direction of the main rod. A wedge block is fixed to one end of the second locking rod near the wedge-shaped end of the first locking rod. The inclined surface of the wedge block and the inclined surface of the wedge-shaped end of the first locking rod slide in contact via a T-slot and a T-block. A fourth spring connects the wedge block and the mounting plate.

[0018] The locking groove is located on the side wall of the main rod. When the second column rotates upward around the axis, the fourth spring drives the main rod of the second locking rod box to slide, causing the second locking rod to insert into the locking groove and restricting the sliding of the main rod relative to the mounting plate. When the second column rotates around the axis so that the first mating surface and the second mating surface coincide, making the main rod and the grinding cylinder coaxial, the first mating surface pushes the first locking rod towards the mounting plate, causing the second locking rod to be pulled out of the locking groove, releasing the lock between the main rod and the mounting plate. The third spring releases its force, driving the main rod to move towards the two sanding belts.

[0019] Furthermore, a support device is provided on the front side of the grinding cylinder. The support device is used to provide auxiliary support for the aluminum tube to be ground.

[0020] Furthermore, the support device includes a support platform. The support platform is movably mounted on the frame.

[0021] Furthermore, the support device also includes an adjustment assembly. This assembly is used to adjust the height of the support platform according to the diameter of the aluminum tube, ensuring that the axis of the aluminum tube placed on the support platform is coaxial with the grinding cylinder, resulting in more uniform grinding of the aluminum tube surface.

[0022] Furthermore, the mounting plate is provided with mounting holes. The main rod slides within the mounting holes.

[0023] The adjustment assembly includes an adjustment chamber and a hydraulic rod.

[0024] The adjusting chamber is located at the rear end of the main rod. A piston plate is slidably installed inside the adjusting chamber. The piston plate divides the adjusting chamber into a front chamber and a rear chamber that are not interconnected. The front chamber is connected to the outside through a locking groove. The rear chamber is filled with hydraulic oil. Multiple push rods are located on the rear side of the piston plate. The push rods are elastic rods. The push rods are arranged back and forth along the axial direction of the main rod, with the rear end fixed to the piston plate and the front end fixed with a push block.

[0025] The push block is located behind the limiting ring. The push block and the locking groove are in sliding fit. The push block is wedge-shaped with its small end away from the main rod axis, and the front face of the push block is perpendicular to the main rod axis, while the rear face is inclined. In the initial state, the small end of the push block abuts against the wall of the mounting hole, and the push rod deforms to allow the push block to be housed in the locking groove.

[0026] The hydraulic rod is positioned between the support platform and the frame. The hydraulic rod is fixed to the frame, and its piston rod is fixedly connected to the support platform. A fifth spring connects the hydraulic rod and the support platform. The hydraulic chamber and rear chamber of the hydraulic rod are connected via oil pipes. As the front and rear rods pass through the two sanding belts, the main rod moves towards them. Due to the magnetic attraction between the limiting ring and the mounting plate, when the main rod stretches the first spring, and due to the limiting effect of the second spring, the sleeve moves backward relative to the main rod, bringing the front and rear rods closer to the main rod for easier passage through the two sanding belts. At this time, the main rod pulls the sleeve synchronously through the front and rear rods, stretching the second spring. After the push block disengages from the mounting hole and the limiting ring, it extends from the locking groove away from the main rod axis. When the front and rear rods pass through the two sanding belts, the tension of the first and second springs is greater than the magnetic attraction of the limiting ring to the mounting plate. The first and second springs reset, causing the limiting ring to detach from the mounting plate and move towards the two sanding belts. When the limiting ring passes the push block, it first pushes the locking block into the locking groove, and then moves to the front of the push block. The push rod resets, causing the push block to extend out of the locking groove again, and the front end face of the push block abuts against the limiting ring. At this time, the front and rear rods move away from the main rod, forming a V-shape with the opening facing the axis of the main rod. One end of the aluminum tube is sleeved on the front end of the main rod and presses against the front rod. When the aluminum tube moves backward, it drives the front rod closer to the main rod, and the rear rod moves towards the main rod synchronously with the front rod. When the rear rod moves towards the main rod, it pushes the sleeve to move backward, the sleeve pushes the push block, and the push block pushes the piston plate through the push rod. The piston plate presses the hydraulic oil in the rear chamber into the hydraulic rod, driving the support platform to rise and fall. When the aluminum tube abuts the locking rod, it prevents the rear rod from moving further towards the main rod, and the support platform stops rising and falling. At this time, the front rod and the locking rod simultaneously abut the aluminum tube wall. The distance from the intersection of the front and rear rods to the axis of the main rod is the radius of the aluminum tube, allowing the height of the support platform to be adjusted according to the diameter of the aluminum tube.

[0027] The beneficial effects of this invention are as follows: When the main rod moves forward toward the grinding cylinder, the limiting component causes the sleeve to move backward a preset distance relative to the main rod, so that the front rod and the rear rod are close to the main rod, facilitating the passage of the auxiliary component through the two sanding belts. When the auxiliary component passes through the two sanding belts, the sleeve moves forward to reset, so that the front rod and the rear rod move away from the main rod and form a V-shape with the opening facing the axis of the main rod. One end of the aluminum tube is fitted onto the front end of the main rod and presses against the front rod. When the aluminum tube moves backward, it drives the front rod to move closer to the main rod, and the rear rod moves closer to the main rod synchronously with the front rod. When the aluminum tube abuts against the locking rod, it abuts against the locking rod to prevent the rear rod from moving further toward the main rod. When the aluminum tube pushes the main rod through the two sanding belts through the locking rod and the front rod, because the rear rod is in a state where the front end is away from the main rod and the rear end is close to the main rod, multiple rear rods form a cone with the small end facing backward around the axis of the main rod. Before the aluminum tube is inserted between the two sanding belts, the rear rod first spreads the two sanding belts apart, facilitating the insertion of the aluminum tube and improving the grinding efficiency. Attached Figure Description

[0028] 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 some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of an embodiment of a contact-type aluminum profile surface polishing device according to the present invention;

[0030] Figure 2 This is a front view of an embodiment of a contact-type aluminum profile surface polishing device according to the present invention;

[0031] Figure 3 for Figure 2 Sectional view along the middle AA direction;

[0032] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0033] Figure 5 This is a diagram showing the state of the front rod and rear rod close to the main rod, preparing to pass through the two sanding belts, in an embodiment of a contact-type aluminum profile surface grinding device of the present invention.

[0034] Figure 6 This is a diagram showing the state of the front rod and rear rod when they are close to the main rod, passing through two sanding belts, and the limiting ring is not detached from the mounting plate, according to an embodiment of the contact-type aluminum profile surface grinding equipment of the present invention.

[0035] Figure 7 This is a diagram showing the state of the front and rear rods of a contact-type aluminum profile surface grinding device according to an embodiment of the present invention, when the front and rear rods pass through two sanding belts, the limiting rings disengage from the mounting plate, and the front and rear rods move away from the main rod in a V-shape with the opening facing the axis of the main rod.

[0036] Figure 8 This is a diagram showing the state of an aluminum tube being clamped between a front rod and a clamping rod in an embodiment of a contact-type aluminum profile surface grinding device of the present invention.

[0037] Figure 9 for Figure 8 Enlarged view of point C in the middle;

[0038] Figure 10 This is a diagram showing the state of the mounting plate rotating upwards after the guide aluminum tube is inserted between two sanding belts in an embodiment of the contact-type aluminum profile surface grinding equipment of the present invention.

[0039] Figure 11 for Figure 10 Enlarged view at point D;

[0040] Figure 12 This is a schematic diagram of the piston plate, push rod, and push block of an embodiment of a contact-type aluminum profile surface grinding equipment of the present invention;

[0041] Figure 13 This is a diagram showing the state of the piston plate, push rod, and push block when the push block is stored in the locking groove, according to an embodiment of the contact-type aluminum profile surface grinding equipment of the present invention.

[0042] Figure 14 This is a cross-sectional view of the main rod of an embodiment of a contact-type aluminum profile surface grinding device of the present invention.

[0043] In the diagram: 100, frame; 110, aluminum tube; 200, grinding cylinder; 210, sanding belt; 220, mounting plate; 300, main rod; 310, third spring; 400, sleeve; 410, first spring; 510, front rod; 520, rear rod; 530, locking rod; 610, limiting ring; 620, second spring; 710, first column; 711, first mating surface; 720, second column; 721, second mating surface; 810, first locking rod; 820, second locking rod; 830, fourth spring; 840, locking groove; 910, support platform; 920, adjusting cavity; 921, front cavity; 922, rear cavity; 930, piston plate; 940, push rod; 950, push block; 960, hydraulic rod. Detailed Implementation

[0044] Embodiments of the present invention will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0045] The terms "first" and "second" in the specification and claims of this invention may explicitly or implicitly include one or more of those features. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0046] In the description of this invention, it should be understood that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and 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. Therefore, they should not be construed as limitations on this invention.

[0047] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 based on the specific circumstances.

[0048] An embodiment of the contact-type aluminum profile surface grinding equipment of the present invention, such as... Figures 1 to 14 As shown, a contact-type aluminum profile surface grinding device includes a frame 100 and a grinding cylinder 200. The frame 100 is positioned front to back. The grinding cylinder 200 is fixed to the frame 100 with its axis positioned front to back. A rotating ring is rotatably mounted inside the grinding cylinder 200. Two sanding belts 210 are symmetrically arranged on the rotating ring. Two sets of support columns are symmetrically distributed on the rotating ring, each set including three support columns, the lines connecting the three support columns forming a triangle; the support columns are rotatably mounted on the rotating ring. The sanding belts 210 are fitted around the outside of the same set of support columns, and the sanding belts 210 are triangular in shape. The two sanding belts 210 are arranged parallel to each other on one side of their closest point. A grinding gap is formed between the two sanding belts 210. A first motor is fixed inside the grinding cylinder 200, and the output shaft of the first motor drives the rotating ring to rotate through gears, and the rotating ring drives the sanding belts 210 to grind the aluminum tube 110. A second motor is fixed on the rotating ring. The output shaft of the second motor and the support column are driven by gear meshing. It is used to replace the grinding part when the sanding belt 210 grinds the aluminum tube 110, so that the sanding belt 210 is used more evenly and the grinding accuracy is improved.

[0049] A support device is provided on the front side of the grinding cylinder 200, which is used to provide auxiliary support for the aluminum tube 110 to be ground. A guide device is provided on the rear side of the grinding cylinder 200.

[0050] The guiding device includes a mounting plate 220, a main rod 300, a sleeve 400, auxiliary components, and a limiting component. The mounting plate 220 is rotatably mounted on the rear end of the grinding cylinder 200 via a hinge component. The mounting plate 220 has mounting holes. The main rod 300 and the grinding cylinder 200 are coaxial and slidably mounted on the mounting plate 220 through the mounting holes. The sleeve 400 is located between the grinding cylinder 200 and the mounting plate 220. The sleeve 400 is sleeved on the main rod 300. The sleeve 400 and the main rod 300 are in sliding engagement, and the front end of the sleeve 400 is located behind the front end of the main rod 300. A first spring 410 connects the sleeve 400 and the main rod 300.

[0051] The hinge assembly includes a first post 710 and a second post 720. The first post 710 is positioned rearwards from the grinding cylinder 200. The front end of the first post 710 is fixed to the upper end of the grinding cylinder 200. The rear end face of the first post 710 is designated as the first mating surface 711. The second post 720 is positioned rearwards from the first post 710. The second post 720 is positioned rearwards from the first post 710, with its front end abutting against the rear end of the first post 710 and its rear end fixedly connected to the mounting plate 220. The front end face of the second post 720 is designated as the second mating surface 721. A pivot is provided between the second post 720 and the first post 710. The pivot is fixed to the upper end of the first mating surface 711. The pivot and the upper ends of the second mating surface 721 are rotatably engaged. When the second post 720 rotates around the pivot so that the first mating surface 711 and the second mating surface 721 coincide, the first post 710 and the second post 720 are coaxial, and the main rod 300 and the grinding cylinder 200 are also coaxial.

[0052] Multiple auxiliary components are provided, distributed circumferentially along the main rod 300. The auxiliary components include a front rod 510, a rear rod 520, and a locking rod 530. The front rod 510 is inclined forward and backward, with its front end close to the main rod 300 and its rear end away from the main rod 300. The rear rod 520 is located behind the front rod 510. The rear rod 520 is also inclined forward and backward, with its front end away from the main rod 300 and its rear end close to the main rod 300. The front end of the front rod 510 is rotatably connected to the front end of the main rod 300, and its rear end is rotatably connected to the front end of the rear rod 520. The rear end of the rear rod 520 is rotatably connected to the front end of the sleeve 400. The locking rod 530 is coaxially fixed to the front end of the rear rod 520. The locking rod 530 and the front rod 510 form a V-shape with the larger end facing forward.

[0053] The limiting component is used to cause the sleeve 400 to move backward relative to the main rod 300 a preset distance when the main rod 300 moves forward toward the grinding cylinder 200. This preset distance causes the first spring 410 to stretch to its maximum value. At this time, the front rod 510 and the rear rod 520 rotate around their own rotation axes toward the main rod 300, so that the front rod 510 and the rear rod 520 are close to the main rod 300, and their axes coincide, forming a cone shape with the smaller end facing forward. This facilitates the passage of the auxiliary component through the two sanding belts 210. When the auxiliary component passes through the two sanding belts 210, the sleeve 400 moves forward to reset, so that the front rod 510 and the rear rod 520 are away from the main rod 300, forming a V-shape with the opening facing the axis of the main rod 300. The limiting component includes a limiting ring 610. The limiting ring 610 is located between the sleeve 400 and the mounting plate 220. The limiting ring 610 is fitted onto the main rod 300. The limiting ring 610 is a magnet and is magnetically connected to the mounting plate 220. A second spring 620 connects the limiting ring 610 and the sleeve 400. A third spring 310 connects the mounting plate 220 and the main rod 300.

[0054] A locking device is provided between the mounting plate 220 and the hinge assembly. The locking device is used to, after the aluminum tube 110 is inserted between the two sanding belts 210, manually maintain the relative position of the main rod 300 and the mounting plate 220, drive the mounting plate 220 to rotate the main rod 300 upwards, causing the second column 720 to rotate upwards around its axis, locking the main rod 300 and the mounting plate 220, and putting the third spring 310 in a charged state. The mounting plate 220 then drives the main rod 300 downwards. When the main rod 300 and the grinding cylinder 200 are coaxial, the lock between the main rod 300 and the mounting plate 220 is released.

[0055] The locking device includes a first locking lever 810, a second locking lever 820, and a locking groove 840. The first locking lever 810 is arranged along the axis of the second post 720. The first locking lever 810 is slidably installed in the second post 720 along the axis of the second post 720. The end of the first locking lever 810 near the mounting plate 220 is wedge-shaped, and the end away from the mounting plate 220 extends between the first mating surface 711 and the second mating surface 721.

[0056] The second locking rod 820 is radially arranged along the main rod 300. The second locking rod 820 is slidably mounted within the mounting plate 220 along the main rod 300. A wedge block is fixed to the end of the second locking rod 820 near the wedge-shaped end of the first locking rod 810. The inclined surface of the wedge block and the inclined surface of the wedge-shaped end of the first locking rod 810 are slidably engaged through a T-slot and a T-block. A fourth spring 830 connects the wedge block and the mounting plate 220.

[0057] A locking groove 840 is provided on the side wall of the main rod 300. When the second column 720 rotates upward about the pivot axis, the fourth spring 830 drives the second locking rod 820 to slide against the main rod 300, so that the second locking rod 820 is inserted into the locking groove 840, restricting the sliding of the main rod 300 relative to the mounting plate 220. When the second column 720 rotates about the pivot axis so that the first mating surface 711 and the second mating surface 721 coincide, making the main rod 300 and the grinding cylinder 200 coaxial, the first mating surface 711 pushes the first locking rod 810 towards the mounting plate 220, driving the second locking rod 820 out of the locking groove 840, releasing the lock between the main rod 300 and the mounting plate 220, and the third spring 310 releases its force, driving the main rod 300 to move towards the two sanding belts 210.

[0058] The support device includes a support platform 910 and an adjustment assembly. The support platform 910 is mounted vertically on the frame 100. The adjustment assembly is used to adjust the height of the support platform 910 according to the diameter of the aluminum tube 110, so that the axis of the aluminum tube 110 placed on the support platform 910 is coaxial with the grinding cylinder 200, making the surface of the aluminum tube 110 more uniformly ground.

[0059] The adjustment assembly includes an adjustment chamber 920 and a hydraulic rod 960. The adjustment chamber 920 is located at the rear end of the main rod 300. A piston plate 930 is slidably installed inside the adjustment chamber 920. The piston plate 930 divides the adjustment chamber 920 into a front chamber 921 and a rear chamber 922, which are not interconnected. The front chamber 921 is connected to the outside through a locking groove 840. The rear chamber 922 is filled with hydraulic oil. Multiple push rods 940 are provided on the rear side of the piston plate 930. The push rods 940 are elastic rods. The push rods 940 are arranged back and forth along the axial direction of the main rod 300, with the rear end fixed to the piston plate 930 and the front end fixed with a push block 950. The push block 950 is located on the rear side of the limiting ring 610. The push block 950 and the locking groove 840 are slidably engaged. The push block 950 is wedge-shaped with its small end away from the axis of the main rod 300, and the front end face of the push block 950 is perpendicular to the axis of the main rod 300, while the rear end face is an inclined surface. In the initial state, the small end of the push block 950 abuts against the wall of the mounting hole, and the push rod 940 deforms so that the push block 950 is housed in the locking groove 840.

[0060] Hydraulic rod 960 is located between support platform 910 and frame 100. Hydraulic rod 960 is fixed to frame 100, and piston rod of hydraulic rod 960 is fixedly connected to support platform 910. A fifth spring connects hydraulic rod 960 and support platform 910. Hydraulic chamber and rear chamber 922 of hydraulic rod 960 are connected by oil pipe. During the process of front rod 510 and rear rod 520 passing through two sanding belts 210, main rod 300 moves towards the two sanding belts 210. Due to the magnetic attraction between limiting ring 610 and mounting plate 220, when main rod 300 stretches first spring 410, and due to the limiting effect of second spring 620, sleeve 400 moves backward relative to main rod 300, and front rod 510 and rear rod 520 move closer to main rod 300 to facilitate passing through two sanding belts 210. At this time, the main rod 300 pulls the sleeve 400 synchronously through the front rod 510 and the rear rod 520, stretching the second spring 620. After the push block 950 disengages from the mounting hole and the limiting ring 610, it extends out of the locking groove 840 in a direction away from the axis of the main rod 300. When the front rod 510 and the rear rod 520 pass through the two sanding belts 210, the tension of the first spring 410 and the second spring 620 is greater than the magnetic attraction of the limiting ring 610 to the mounting plate 220. The first spring 410 and the second spring 620 reset, causing the limiting ring 610 to disengage from the mounting plate 220 and move towards the two sanding belts 210. When the limiting ring 610 passes the push block 950, it first pushes the locking block into the locking groove 840, and then moves to the front side of the push block 950. The reset of the push rod 940 causes the push block 950 to extend out of the locking groove 840 again, and the front end face of the push block 950 abuts against the limiting ring 610. At this time, the front rod 510 and the rear rod 520 are moved away from the main rod 300, forming a V-shape with their openings facing the axis of the main rod 300. One end of the aluminum tube 110 is fitted onto the front end of the main rod 300 and presses against the front rod 510. As the aluminum tube 110 moves backward, it drives the front rod 510 closer to the main rod 300, and the rear rod 520 moves towards the main rod 300 synchronously with the front rod 510. When the rear rod 520 moves towards the main rod 300, it pushes the sleeve 400 to move backward. The sleeve 400 pushes the push block 950, and the push block 950 pushes the piston plate 930 to move through the push rod 940. The piston plate 930 presses the hydraulic oil in the rear chamber 922 into the hydraulic rod 960, driving the support platform 910 to rise and fall. When the aluminum tube 110 abuts against the locking rod 530, it prevents the rear rod 520 from continuing to approach the main rod 300, and the support platform 910 stops rising and falling. At this time, the front rod 510 and the locking rod 530 simultaneously abut against the wall of the aluminum tube 110. The distance from the intersection of the front rod 510 and the rear rod 520 to the axis of the main rod 300 is the radius of the aluminum tube 110, thus allowing the height of the support platform 910 to be adjusted according to the diameter of the aluminum tube 110.

[0061] Based on the above embodiments, the working principle and operation process of the present invention are as follows: When in use, the first motor is started, which drives the rotating ring to rotate the sand belt 210.

[0062] Rotate the mounting plate 220 by hand to make the main rod 300 rotate downward. When the main rod 300 and the grinding cylinder 200 are coaxial, the first mating surface 711 pushes the first locking rod 810 towards the mounting plate 220, causing the second locking rod 820 to be pulled out of the locking groove 840, releasing the lock between the main rod 300 and the mounting plate 220. The third spring 310 releases force, driving the main rod 300 to move towards the two sanding belts 210.

[0063] Because the limiting ring 610 and the mounting plate 220 are magnetically fixed, when the main rod 300 stretches the first spring 410, and due to the limiting effect of the second spring 620, the sleeve 400 moves backward relative to the main rod 300. The front rod 510 and the rear rod 520 move closer to the main rod 300 to facilitate the passage of the two sanding belts 210. At this time, the main rod 300 pulls the sleeve 400 to move synchronously through the front rod 510 and the rear rod 520, thus stretching the second spring 620. After the push block 950 disengages from the mounting hole and the limiting ring 610, it extends out of the locking groove 840 in a direction away from the axis of the main rod 300.

[0064] When the front rod 510 and rear rod 520 pass through the two sanding belts 210 and move to the front of the grinding cylinder 200, the tension of the first spring 410 and the second spring 620 is greater than the magnetic attraction of the limiting ring 610 to the mounting plate 220. The first spring 410 and the second spring 620 reset, causing the limiting ring 610 to disengage from the mounting plate 220 and move toward the two sanding belts 210. When the limiting ring 610 passes the push block 950, it first pushes the locking block into the locking groove 840, and then moves to the front of the push block 950. The reset of the push rod 940 causes the push block 950 to extend out of the locking groove 840 again, and the front end face of the push block 950 abuts against the limiting ring 610. At this time, the front rod 510 and the rear rod 520 move away from the main rod 300 to form a V-shape with the opening facing the axis of the main rod 300.

[0065] One end of the aluminum tube 110 is fitted onto the front end of the main rod 300 and pressed against the front rod 510. The aluminum tube 110 is pushed backward by hand. As the aluminum tube 110 moves backward, it drives the front rod 510 closer to the main rod 300, and the rear rod 520 moves towards the main rod 300 synchronously with the front rod 510. When the rear rod 520 moves towards the main rod 300, it pushes the sleeve 400 backward, which in turn pushes the push block 950. The push block 950 pushes the piston plate 930 through the push rod 940, which in turn presses the hydraulic oil in the rear chamber 922 into the hydraulic rod 960, causing the support platform 910 to rise and fall.

[0066] When the aluminum tube 110 abuts against the locking rod 530, it prevents the rear rod 520 from continuing to approach the main rod 300, and the support platform 910 stops rising and falling. At this time, the front rod 510 and the locking rod 530 simultaneously abut against the wall of the aluminum tube 110. The distance from the intersection of the front rod 510 and the rear rod 520 to the axis of the main rod 300 is the radius of the aluminum tube 110, thus allowing the height of the support platform 910 to be adjusted according to the diameter of the aluminum tube 110.

[0067] Continue pushing the aluminum tube 110 backward. The aluminum tube 110 pushes the main rod 300 backward via the clamping rod 530 and the front rod 510. As the aluminum tube 110 pushes the main rod 300 through the two sanding belts 210, the rear rods 520, positioned with their front ends away from the main rod 300 and their rear ends close to it, form a cone shape with the smaller end facing backward around the axis of the main rod 300. Before the aluminum tube 110 inserts between the two sanding belts 210, the rear rods 520 first spread the two sanding belts 210 apart, facilitating the insertion of the aluminum tube 110 and improving grinding efficiency. During the process of pushing the main rod 300 backward via the aluminum tube 110, the third spring 310 is stretched, causing the third spring 310 to store force.

[0068] After the aluminum tube 110 is inserted between the two sanding belts 210, the limiting ring 610 and the mounting plate 220 are magnetically attracted and fixed again, and the mounting hole pushes the push block 950 into the locking groove 840. At this time, after keeping the relative position of the main rod 300 and the mounting plate 220 unchanged by hand, the mounting plate 220 is driven to drive the main rod 300 to rotate upward, so that the second column 720 rotates upward around the axis of rotation. The first mating surface 711 and the first locking rod 810 disengage, so that the fourth spring 830 releases its force, driving the second locking rod 820 to move towards the main rod 300 and insert into the locking groove 840, locking the main rod 300 and the mounting plate 220, and putting the third spring 310 into a charged state.

[0069] After the aluminum tube 110 is inserted between the two sanding belts 210, the two sanding belts 210 rotate around the aluminum tube 110 to polish the surface of the aluminum tube 110.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A contact-type aluminum profile surface polishing apparatus, characterized by: The polishing device comprises a frame and a polishing cylinder. The frame is arranged front-to-back. The polishing cylinder is fixed on the frame with its axis arranged front-to-back. The polishing cylinder is internally rotatably mounted with a rotating ring. The rotating ring is symmetrically provided with two parallel abrasive belts. The polishing cylinder is provided with a guide device at its rear side. The guide device comprises a mounting plate, a main rod, a sleeve, an auxiliary assembly and a limiting assembly.

2. A contact type aluminum profile surface polishing apparatus according to claim 1, characterized in that: The mounting plate is rotatably mounted on the rear end of the polishing cylinder by a hinge assembly.

3. A contact type aluminum profile surface polishing apparatus according to claim 2, wherein: The main rod is coaxial with the polishing cylinder and is arranged on the mounting plate in a front-to-back sliding manner. The sleeve is arranged between the polishing cylinder and the mounting plate. The sleeve is sleeved on the main rod. The sleeve and the main rod are in sliding fit, and the front end of the sleeve is located at the rear side of the front end of the main rod. The sleeve and the main rod are connected by a first spring. The auxiliary assembly comprises a front rod, a rear rod and a clamping rod. The front rod is arranged in a front-to-back inclined manner, with its front end close to the main rod and its rear end away from the main rod. The rear rod is arranged at the rear side of the front rod. The rear rod is arranged in a front-to-back inclined manner, with its front end away from the main rod and its rear end close to the main rod. The front end of the front rod is rotatably connected to the front end of the main rod, and the rear end of the front rod is rotatably connected to the front end of the rear rod. The rear end of the rear rod is rotatably connected to the front end of the sleeve. The clamping rod is coaxially fixed to the front end of the rear rod. The clamping rod and the front rod form a V-shaped structure with the large end facing forward. The limiting assembly comprises a limiting ring. The limiting ring is arranged between the sleeve and the mounting plate. The limiting ring is sleeved on the main rod. The limiting ring and the mounting plate are connected by magnetic force. The limiting ring and the sleeve are connected by a second spring. When the main rod moves forward, the sleeve moves backward by a preset distance relative to the main rod, the first spring is stretched to its maximum value, the front rod and the rear rod are close to the main rod, the axis of the front rod and the rear rod are coincident, and a small-end-forward tapered structure is formed. When the auxiliary assembly passes through the two abrasive belts, the sleeve moves forward to its original position, the front rod and the rear rod are away from the main rod, and a V-shaped structure with the opening facing the axis of the main rod is formed. When the aluminum pipe is sleeved on the front end of the main rod and abuts against the front rod, and the aluminum pipe is pushed to abut against the clamping rod and continues to move backward, the rear rod is away from the main rod, and the multiple rear rods form a small-end-backward tapered structure around the axis of the main rod. The third spring is connected between the mounting plate and the main rod. The hinge assembly comprises a first column and a second column. The first column is arranged front-to-back on the rear side of the polishing cylinder. The front end of the first column is fixed on the upper end of the polishing cylinder. The rear end surface of the first column is provided with a first matching surface. The second column is arranged on the rear side of the first column. The front end of the second column abuts against the rear end of the first column, and the rear end of the second column is fixedly connected to the mounting plate. The front end surface of the second column is provided with a second matching surface. A rotating shaft is arranged between the second column and the first column. The rotating shaft is fixed on the upper end of the first matching surface. The rotating shaft and the upper end of the second matching surface are in rotational fit. When the second column rotates around the rotating shaft to make the first matching surface and the second matching surface coincide, the first column and the second column are coaxial, and the main rod and the polishing cylinder are coaxial.

4. A contact type aluminum profile surface polishing apparatus according to claim 3, wherein: Locking device is arranged between the mounting plate and the hinged assembly; the locking device is used to rotate the mounting plate and the main rod upward after the aluminum pipe is inserted between the two abrasive belts, lock the main rod and the mounting plate, make the third spring in the force storage state, rotate the mounting plate and the main rod downward, and release the locking between the main rod and the mounting plate when the main rod and the polishing cylinder are coaxial.

5. A contact type aluminum profile surface polishing apparatus according to claim 4, wherein: The locking device comprises a first locking rod, a second locking rod and a locking groove; The first locking rod is arranged along the second column axis; the first locking rod is slidingly installed in the second column along the second column axis; the end of the first locking rod close to the mounting plate is wedge-shaped, and the end away from the mounting plate extends to between the first and second matching surfaces; The second locking rod is arranged along the radial direction of the main rod; the second locking rod is slidingly installed in the mounting plate along the radial direction of the main rod; the end of the second locking rod close to the wedge-shaped end of the first locking rod is fixed with a wedge block; the inclined surface of the wedge block and the inclined surface of the wedge-shaped end of the first locking rod are slidingly matched through the T-shaped groove and the T-shaped block; the fourth spring is connected between the wedge block and the mounting plate; The locking groove is arranged on the side wall of the main rod.

6. A contact-type aluminum profile surface polishing apparatus according to claim 5, wherein: The polishing cylinder front side is provided with a supporting device; the supporting device is used to assist in supporting the aluminum pipe to be polished.

7. A contact type aluminum profile surface polishing apparatus according to claim 6, wherein: The supporting device comprises a supporting table; the supporting table is movably arranged on the rack.

8. A contact type aluminum profile surface polishing apparatus according to claim 7, wherein: The supporting device further comprises an adjusting assembly; the adjusting assembly is used to adjust the height of the supporting table according to the diameter of the aluminum pipe.

9. A contact type aluminum profile surface polishing apparatus according to claim 8, wherein: The mounting plate is provided with a mounting hole; the main rod is slidingly matched in the mounting hole; The adjusting assembly comprises an adjusting cavity and a hydraulic rod; The adjusting cavity is arranged at the rear end of the main rod; the piston plate is slidingly installed in the adjusting cavity; the piston plate divides the adjusting cavity into front and rear cavities which are not in communication with each other; the front cavity is in communication with the outside through the locking groove; the rear cavity is filled with hydraulic oil; The rear side of the piston plate is provided with a plurality of push rods; the push rod is an elastic rod; the push rod is arranged in the axial direction of the main rod; the rear end is fixed on the piston plate, and the front end is fixed with a push block; The push block is arranged on the rear side of the limiting ring; the push block and the locking groove are slidingly matched; the push block is wedge-shaped with the small end away from the main rod axis, and the front end surface of the push block is perpendicular to the main rod axis, and the rear end surface is inclined; in the initial state, the small end of the push block abuts against the hole wall of the mounting hole, and the push rod is deformed to make the push block received in the locking groove; The hydraulic rod is arranged between the supporting table and the rack; the hydraulic rod is fixed on the rack, the piston rod of the hydraulic rod is fixedly connected with the supporting table; the fifth spring is connected between the hydraulic rod and the supporting table; the hydraulic cavity of the hydraulic rod and the rear cavity are in communication through the oil pipe.

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