Polishing device capable of being used for polishing bent surface

Abstract

The utility model belongs to the technical field of aluminum plate polishing, and particularly relates to a polishing device capable of being used for polishing a bent surface, which comprises a rack, an air cylinder is fixed at the top of the rack, the output end of the air cylinder downwards penetrates through the top of the rack and is fixedly provided with a horizontal electric guide rail, and the lower end of the electric guide rail is movably connected with a polishing mechanism. The grinding mechanism is provided with a grinding belt capable of being attached to the radian of the bent face of the aluminum alloy, the grinding mechanism is driven by the electric guide rail to grind the bent face in the horizontal direction, and the two supporting tables are symmetrically arranged on the inner side of the rack and support the bottom of the aluminum alloy. An adjusting mechanism capable of adjusting the distance between the two supporting tables is arranged between the rack and the supporting tables; the two movable driven wheels are arranged through the torsional spring to be matched with the grinding belt, after the grinding belt moves downwards to make contact with aluminum alloy, the grinding belt can be matched with the bent face in shape, then grinding is conducted, grinding integrity is guaranteed, walking grinding is conducted through cooperation with the electric guide rail, and efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of aluminum plate polishing, particularly relates to a polishing device for polishing bending surface. BACKGROUND

[0002] Firstly, since the aluminum alloy has good ductility, tearing easily occurs at the edge of the material during bending deformation; secondly, when the gap between the upper and lower dies of the bending die is too large, the cutting edge is worn or the surface is rough, the material will be extruded instead of being cut neatly; thirdly, improper process parameters, such as too fast bending speed, insufficient pressure or not using a material pressing device, will exacerbate burr formation; in addition, if the bending direction is parallel to the rolling direction of the aluminum plate, the material is more likely to produce cracks and burrs along the grain boundary; these factors jointly cause irregular metal protrusions at the bending edge, which not only affects the appearance of the product, but also may reduce the assembly accuracy and use safety.

[0003] Since the bending surface is arc-shaped, the existing planar polishing cannot meet the requirements, and generally, a scraper, a file or polishing paper is used for polishing, but the above methods are all manual operations, which are low in efficiency and cumbersome to operate, and the bent aluminum alloy is difficult to be stably positioned, affecting the production progress.

[0004] To solve the above problems, the polishing device for polishing the bending surface is provided in the application. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a polishing device for polishing the bending surface, which solves the problems in the background technology.

[0006] To solve the above technical problems, the utility model is implemented by the following technical scheme:

[0007] The utility model is a polishing device for polishing the bending surface, which comprises a rack, a gas cylinder is fixed at the top of the rack, a horizontal electric guide rail is fixed at the output end of the gas cylinder downward penetrating the top of the rack, a polishing mechanism is movably connected to the lower end of the electric guide rail, a polishing belt capable of conforming to the arc of the bending surface of the aluminum alloy is arranged on the polishing mechanism, the electric guide rail drives the polishing mechanism to polish the bending surface in the horizontal direction, and further comprises two support tables symmetrically arranged on the inner side of the rack and forming a bottom support for the aluminum alloy, an adjusting mechanism capable of adjusting the distance between the two support tables is arranged between the rack and the support tables; a pressing mechanism for pressing the aluminum alloy on the support table, the pressing mechanisms are symmetrically arranged on the support table, and a pressing plate capable of pressing the aluminum alloy plate and rotating is arranged on the pressing mechanism.

[0008] Further, one end of the two support tables away from each other forms a support surface for supporting the lower surface of the aluminum alloy, and a step abutting against the end surface of the aluminum alloy is formed at the bottom of the support table.

[0009] Further, the pressing mechanism comprises a pressing seat fixed on the step away from the supporting surface of the supporting table and a screw rod rotatably arranged in the pressing seat, and the pressing plate is threadedly connected to the outer portion of the screw rod and movable in the pressing seat.

[0010] Further, a limiting groove is formed at the lower end of the inner side of the pressing seat to position the pressing plate in the pressing path, and an open groove is formed at the upper end of the side of the pressing seat to allow the pressing plate to rotate.

[0011] Further, the upper end of the screw rod penetrates through the pressing seat and is fixed with a screw wheel.

[0012] Further, a threaded hole is formed at one end of the pressing plate to threadedly connect with the screw rod, and a pressing block is fixed at the bottom of the end of the pressing plate away from the threaded hole.

[0013] Further, the polishing mechanism comprises a mounting frame movably mounted at the lower end of the electric guide rail and a driving wheel rotatably arranged on the mounting frame, the mounting frame is hingedly connected with symmetrical swing rods through torsion springs, the two swing rods are symmetrically arranged at the lower end of the side of the driving wheel and are provided with rotatable driven wheels, the polishing belt is arranged outside the two driven wheels and the driving wheel, and the side of the mounting frame is provided with a motor for driving the driving wheel and the driven wheels through the polishing belt.

[0014] Further, the adjusting mechanism comprises an inner threaded sleeve fixed at the middle of the bottom of the supporting table and a lead screw rotatably arranged on the rack and threadedly connected with the inner threaded sleeve, a linear guide rail is arranged between the side of the bottom of the supporting table and the rack, a hand wheel is arranged on the rack, the hand wheel is located at the front end of the rack, and the hand wheel and the lead screw are connected through a conical gear set.

[0015] The utility model has the following beneficial effects:

[0016] The utility model discloses two movable driven wheels are arranged through torsion springs and cooperate with the polishing belt, when the polishing belt moves down to contact the aluminum alloy, the polishing belt can be consistent with the shape of the bending surface and then polish, ensuring the polishing integrity, and the polishing belt can walk and polish through the cooperation of the electric guide rail, improving the efficiency.

[0017] The adjustable supporting table can be used for placing the aluminum alloy after bending with different side lengths, and the flexibility is higher, and the pressing mechanism can press the aluminum alloy in the bending state on the supporting table and ensure that the arc-shaped bending surface faces the polishing mechanism, ensuring the stability of the aluminum alloy during polishing.

[0018] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages mentioned above. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed for the description of the embodiments will be briefly introduced as follows. Obviously, the drawings described below are only some of the embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0020] Figure 1 It is a schematic diagram of the overall appearance structure of the present application.

[0021] Figure 2 It is a schematic diagram of the overall appearance structure of the present application. Figure 1 It is a schematic diagram of the overall appearance structure of the present application.

[0022] Figure 3 It is a schematic diagram of the overall appearance structure of the present application. Figure 1 It is a schematic diagram of the overall appearance structure of the present application.

[0023] Figure 4 It is a schematic diagram of the overall appearance structure of the present application. Figure 1 It is a schematic diagram of the overall appearance structure of the present application.

[0024] Figure 5 It is a schematic diagram of the overall appearance structure of the present application.

[0025] Figure 6 It is a schematic diagram of the overall appearance structure of the present application.

[0026] In the drawings, the component list represented by each reference numeral is as follows:

[0027] In the drawings, the component list represented by each reference numeral is as follows: Specific implementation

[0028] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] In the description of the utility model, it is understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery" and the like indicate the orientation or positional relationship, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the components or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0030] Please refer to Figures 1-6 As shown in the utility model is, a kind of for polishing bending surface polishing device, including rack 1, at least two air cylinders 2 are fixed in rack 1 top, two air cylinders 2 output end is downwardly through rack 1 top and fixed with horizontal electric guide rail 3, electric guide rail 3 lower end movably connected with polishing mechanism 4, polishing mechanism 4 is driven along horizontal direction by electric guide rail 3 and polishes bending surface, further include: two support tables 5 symmetrically arranged in the inner side of rack 1 and form bottom support to aluminium alloy, adjusting mechanism 7 capable of adjusting the spacing between two support tables 5 is arranged between rack 1 and support table 5;By the adjustment of two support tables 5 to adapt to the compression of different side length aluminium alloy plate, the compression mechanism 6 for compressing aluminium alloy on support table 5, compression mechanism 6 is symmetrically arranged on support table 5.

[0031] Wherein, the end of two support tables 5 away from each other forms support surface 51 for supporting the lower surface of aluminium alloy, and the support surface 51 has a large area, which can fully contact with the aluminium alloy plate to ensure reliable support and avoid deformation of the bending angle caused by the downward pressure during polishing, and the support table 5 is located at the bottom of the support surface 51 and forms a step 52 abutting against the end surface of the aluminium alloy, and the position of the step 52 can be customized according to the actual length of the two edges of the aluminium alloy plate to be polished to ensure that the outer part of the arc-shaped bending surface is directly opposite the polishing mechanism 4.

[0032] Wherein, the compression mechanism 6 includes a pressing seat 61 fixed to the side of the step 52 of the support table 5 away from the support surface 51 and a screw rod 62 rotatably arranged in the pressing seat 61, and the upper end of the screw rod 62 penetrates through the pressing seat 61 and is fixed with a screw 621, and the compression mechanism 6 is provided with a compression plate 63 capable of compressing and rotating the aluminium alloy plate, and the compression plate 63 is threadedly connected to the outside of the screw rod 62 and can move in the pressing seat 61, and the compression plate 63 can be compressed and rotated, and the compression ensures the stability of the aluminium alloy plate, and the rotation avoids interference with the taking and placing of the aluminium alloy plate, and the flexibility of mutual cooperation is higher.

[0033] The lower end of the inner side of the pressing seat 61 is formed with a limiting groove 611 for positioning the pressing plate 63 in the pressing path, when the pressing plate 63 is positioned in the limiting groove 611 and the screw rod 62 is rotated, the pressing plate 63 is pressed or loosened the aluminum alloy plate through the cooperation with the threaded hole 632, the upper end of one side of the pressing seat 61 is provided with an opening groove 612, the pressing plate 63 can rotate outwardly from the opening groove 612 to be staggered with the supporting surface 51, facilitating the taking and placing of the aluminum alloy plate.

[0034] The lower end of the inner side of the pressing seat 61 is formed with a limiting groove 611 for positioning the pressing plate 63 in the pressing path, when the pressing plate 63 is positioned in the limiting groove 611 and the screw rod 62 is rotated, the pressing plate 63 is pressed or loosened the aluminum alloy plate through the cooperation with the threaded hole 632, the upper end of one side of the pressing seat 61 is provided with an opening groove 612, the pressing plate 63 can rotate outwardly from the opening groove 612 to be staggered with the supporting surface 51, facilitating the taking and placing of the aluminum alloy plate.

[0035] The one end of the pressing plate 63 is provided with a threaded hole 632 matched with the screw rod 62, and the bottom of the end of the pressing plate 63 away from the threaded hole 632 is fixed with a pressing block 631.

[0036] The polishing mechanism 4 is provided with a polishing belt 45 capable of being attached to the arc of the aluminum alloy bending surface, the polishing belt 45 is provided with a sand surface at the end away from the wheel, the polishing mechanism 4 further comprises a mounting frame 41 movably mounted at the lower end of the electric guide rail 3 and a driving wheel 42 rotating on the mounting frame 41, the electric guide rail 3 is slidable and comprises two parts, the upper part is fixed on the output end of the air cylinder 2, and the lower part is fixed with the top surface of the mounting frame 41, the electric guide rail 3 drives the polishing mechanism 4 to translate through the internal threaded structure and the motor, the mounting frame 41 is hingedly provided with two symmetrical swing rods 43 through a torsion spring, the two swing rods 43 are symmetrically distributed on the lower end side of the driving wheel 42 and are provided with rotating driven wheels 44, the torsion spring drives the two swing rods 43 to open outward, ensuring the tension of the polishing belt 45, when the polishing belt 45 is stressed, the torsion spring is compressed, the polishing belt 45 is arranged outside the two driven wheels 44 and the driving wheel 42, the surfaces of the driving wheel 42 and the driven wheels 44 are provided with a certain arc concave (not shown in the figure) to prevent the polishing belt 45 from falling off, and the side surface of the mounting frame 41 is provided with a motor 46 driving the driving wheel 42 and rotating the driven wheel 44 through the polishing belt 45.

[0037] The adjusting mechanism 7 comprises an inner threaded sleeve 71 fixed in the middle of the bottom of the support table 5 and a screw rod 72 rotatably arranged on the frame 1 and threadedly matched with the inner threaded sleeve 71, the screw rod 72 is provided with bidirectional threads, the two parts of the threads are matched with the inner threaded sleeves 71 at the bottom of the two support tables 5 respectively, when the screw rod 72 rotates, the two support tables 5 are driven to approach or move away synchronously through the threads of the inner threaded sleeves 71, the linear guide rails 75 are arranged between the side of the bottom of the support table 5 and the frame 1 to keep the sliding stability of the support table 5 and form support for the support table 5, the linear guide rails 75 are upper and lower two parts which can slide with each other, the upper part is fixed with the bottom of the support table 5, and the lower part is fixed with the frame 1, the frame 1 is provided with a rotating hand wheel 73, the hand wheel 73 is arranged at the front end for the convenience of operation, and the hand wheel 73 is in transmission through the bevel gear set 74 between the screw rod 72.

[0038] One specific application of the embodiment is that the air cylinder 2 moves the polishing mechanism 4 to a certain height as shown in the drawing, at this time, the pressing mechanism 6 is in the open state, the aluminum alloy to be polished is placed on the two support tables 5, the inner sides of the two edges of the aluminum alloy are adhered to the support surfaces 51 and the end portions are supported on the steps 52 through the adjustment of the adjusting mechanism 7, at this time, the pressing plate 63 is rotated to the inside of the pressing seat 61 through the open slot 612, then the screw rod 62 is screwed through the rotating wheel 621, the screw rod 62 drives the pressing plate 63 to move into the limiting slot 611 through the spiral of the threaded hole 632, until the pressing block 631 presses the aluminum alloy on the support table 5, and the pressing of all the pressing mechanisms 6 is completed in turn. Figure 4 The motor 46 is started to drive the driving wheel 42 to rotate, the two driven wheels 44 are synchronously rotated through the polishing belt 45, at this time, the bottom of the polishing belt 45 is in a flat state under the action of the torsional spring because there is no pressure at the bottom of the polishing belt 45, the air cylinder 2 drives the electric guide rail 3 and the polishing mechanism 4 to synchronously move downward, the polishing belt 45 is in contact with the arc surface of the aluminum alloy, at this time, the polishing belt 45 forms the adhering part with the aluminum alloy, the angle between the two swing rods 43 is reduced, the torsional spring is compressed, and the polishing belt 45 polishes the burrs on the arc surface, then the electric guide rail 3 drives the polishing mechanism 4 to translate to polish the entire arc surface, after the polishing is completed, the air cylinder 2 drives the polishing mechanism 4 to move upward and stop working, and the electric guide rail 3 drives the polishing mechanism 4 to reset.

[0039] After the pressing mechanism 6 is loosened, the aluminum alloy plate with the polishing completed is taken off from the support table 5, the aluminum alloy plate to be polished is positioned again, and the above steps are repeated for continuous polishing.

[0040]

[0041] ​In the description of the specification, the description of the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] The preferred embodiments of the utility model disclosed above are only used for helping to explain the utility model. The preferred embodiments do not describe all the details exhaustively, and also do not limit the utility model to only the specific implementation manners described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited only by the claims and the entire scope and equivalents thereof.

Claims

1. A grinding device for grinding bent surfaces, comprising a frame (1), wherein a cylinder (2) is fixed to the top of the frame (1), and the output end of the cylinder (2) extends downward through the top of the frame (1) and is fixed to a horizontal electric guide rail (3), characterized in that, The lower end of the electric guide rail (3) is movably connected to a grinding mechanism (4). The grinding mechanism (4) is provided with a grinding strip (45) that can fit the curvature of the aluminum alloy bending surface. The electric guide rail (3) drives the grinding mechanism (4) to grind the bending surface in the horizontal direction. The mechanism also includes: Two support platforms (5) are symmetrically arranged inside the frame (1) and form a bottom support for the aluminum alloy. An adjustment mechanism (7) is provided between the frame (1) and the support platforms (5) to adjust the distance between the two support platforms (5). A clamping mechanism (6) is used to press the aluminum alloy on the support platform (5). Multiple clamping mechanisms (6) are symmetrically arranged on the support platform (5). The clamping mechanism (6) is provided with a pressure plate (63) that can press the aluminum alloy plate and rotate.

2. A grinding device for grinding bent surfaces according to claim 1, characterized in that: The two support platforms (5) have a support surface (51) that supports the lower surface of the aluminum alloy at one end opposite to each other. The support platform (5) has a step (52) at the bottom of the support surface (51) that abuts against the end face of the aluminum alloy.

3. A grinding device for grinding bent surfaces according to claim 1, characterized in that: The clamping mechanism (6) includes a pressure seat (61) fixed on the side of the step (52) away from the support surface (51) in the support platform (5) and a screw (62) rotatably disposed in the pressure seat (61). The pressure plate (63) is threadedly fitted to the outside of the screw (62) and can move in the pressure seat (61).

4. A grinding device for grinding bent surfaces according to claim 3, characterized in that: The lower inner side of the pressure seat (61) has a limiting groove (611) for positioning the pressure plate (63) in the pressing path, and the upper side of the pressure seat (61) has an opening groove (612) for the pressure plate (63) to rotate.

5. A grinding device for grinding bent surfaces according to claim 3, characterized in that: The upper end of the screw (62) passes through the pressure seat (61) and is fixed with a screw wheel (621).

6. A grinding device for grinding bent surfaces according to claim 3, characterized in that: One end of the pressure plate (63) is provided with a threaded hole (632) that is threaded to the screw (62), and a pressure block (631) is fixed at the bottom of the end of the pressure plate (63) away from the threaded hole (632).

7. A grinding device for grinding bent surfaces according to claim 1, characterized in that: The grinding mechanism (4) includes a mounting bracket (41) movably mounted on the lower end of the electric guide rail (3) and a drive wheel (42) rotating on the mounting bracket (41). The mounting bracket (41) has symmetrical rocker arms (43) hinged by torsion springs. The two rocker arms (43) are symmetrically distributed on the lower side of the drive wheel (42) and have rotating driven wheels (44). The grinding belt (45) is set outside the two driven wheels (44) and the drive wheel (42). The side of the mounting bracket (41) is provided with a motor (46) that drives the drive wheel (42) and drives the driven wheel (44) to rotate through the grinding belt (45).

8. A grinding device for grinding bent surfaces according to claim 1, characterized in that: The adjustment mechanism (7) includes an internal threaded sleeve (71) fixed in the middle of the bottom of the support platform (5) and a lead screw (72) rotatably mounted on the frame (1) and threadedly engaged with the internal threaded sleeve (71). A linear guide rail (75) is provided between the bottom side of the support platform (5) and the frame (1). A rotating handwheel (73) is provided on the frame (1). The handwheel (73) is located at the front end of the frame (1). The handwheel (73) and the lead screw (72) are driven by a bevel gear set (74).

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