Polishing device for aircraft part production

Abstract

The invention relates to the technical field of polishing devices, in particular to a polishing device for airplane part production, which comprises a rack, a driving wheel and an abutting plate are arranged at the left end and the right end of the rack, two vertically arranged supporting wheels are arranged on the abutting plate, and an abrasive belt is wound on the peripheries of the two supporting wheels and the driving wheel. The outer surface of the abrasive belt between the two supporting wheels can polish a workpiece, the driving wheel can drive the abrasive belt to rotate when rotating, and the multiple air suction holes are formed in the periphery of the driving wheel, so that the friction force between the abrasive belt and the driving wheel can be increased, the slipping frequency is reduced, and dust generated in the abrasive belt polishing process can be adsorbed; and meanwhile, the abrasive belt can continuously shake so as to clean grinding chips on the inner surface of the abrasive belt, so that the cleaning frequency of the abrasive belt can be reduced, and the grinding efficiency of the abrasive belt on the workpiece is improved.

Description

Technical Field

[0001] The invention relates to the technical field of grinding devices, in particular to a grinding device for producing aircraft parts. Background Art

[0002] The parts grinding device is a device used for fine processing of the workpiece surface. It is widely used in manufacturing, automobile, aviation, mold and other industries. The belt grinder uses a high-speed rotating abrasive belt to grind, polish or deburr the produced aircraft parts.

[0003] For example, Chinese patent CN115179155B discloses a belt grinder that can be used for inner groove grinding and a method of using the same. The scheme includes a base and a material trough, and lifting components are installed on both sides of the upper end of the base. A power component is installed inside the rear side of the top beam in the lifting component, and a clamping component is installed at the center of the lower end of the top beam in the lifting component. The scheme cooperates between a clamping cylinder, a cross plate, an auxiliary roller, a main roller, a grinding belt and a workpiece. The output shaft end of the clamping cylinder drives the cross plate to move downward. During the downward movement of the cross plate, the cross plate drives the main roller to press on the arc of the conical inner groove, so that the frosted surface of the grinding belt contacts the surface to be processed of the workpiece, thereby adapting to the shape of the workpiece surface and then grinding the workpiece surface.

[0004] However, in the above scheme, in order to adapt to the shape of the workpiece surface, the sanding belt needs to be pressed and the shape of the sanding belt needs to be maintained. After long-term use, the sanding belt will be deformed, which will cause the sanding belt to slip against the auxiliary roller and the main roller, thereby affecting the quality of the workpiece surface grinding. In addition, after a long period of use, the amount of debris attached to the surface of the sanding belt increases, affecting the grinding efficiency of the sanding belt. Summary of the invention

[0005] Based on this, it is necessary to provide a grinding device for aircraft parts production to address the problem that the current sanding belt is prone to slipping after being used for a long time and the grinding efficiency is reduced.

[0006] The above purpose is achieved through the following technical solutions: A grinding device for producing aircraft parts, comprising: A frame, wherein driving wheels and abutment plates distributed vertically are respectively arranged at both ends of the frame, and two supporting wheels are arranged on the abutment plates, and the two supporting wheels are distributed up and down; A sanding belt, the inner surface of which is wound around the driving wheel and two supporting wheels, the driving wheel rotates to drive the sanding belt to rotate, and the outer surface of the sanding belt between the two supporting wheels can grind the workpiece; A driving assembly, wherein the driving assembly can drive the driving wheel to rotate; A plurality of suction holes are evenly arranged on the outer circumference of the driving wheel, and the plurality of suction holes are evenly distributed along the circumference of the driving wheel and arranged in a row along the axial direction of the driving wheel. The plurality of suction holes form a friction enhancement zone and an adsorption zone on the outer circumference of the driving wheel. The suction holes in the friction enhancement zone can adsorb the inner surface of the sand belt to increase the friction between the inner surface of the sand belt and the driving wheel, and the suction holes in the adsorption zone do not contact the inner surface of the sand belt to adsorb dust.

[0007] Furthermore, the interior of the driving wheel is hollow, and an air suction component is provided on the frame, and the air suction component can extract the air inside the driving wheel to provide adsorption force to the air suction hole.

[0008] Furthermore, the suction assembly includes an air suction ring and an air suction pump. The air suction ring is coaxially and rotatably sealedly connected to the rotating shaft of the driving wheel. The interior of the air suction ring is hollow and connected to the interior of the driving wheel. One end of a pipe is connected to the air suction ring, and the other end of the pipe is connected to the air suction pump.

[0009] Furthermore, the abutment plate is slidably arranged on the frame, and a first elastic member is arranged between the abutment plate and the frame. When the workpiece is polished, the abutment plate can be pushed to move in a direction close to the driving wheel to compress the first elastic member. The friction force of the sanding belt on the abutment plate on the workpiece is positively correlated with the degree of compression of the first elastic member. A tensioning assembly is arranged on the frame, and the tensioning assembly can dynamically adjust the tension of the sanding belt when the abutment plate moves. The area of ​​the friction enhancement zone on the driving wheel is negatively correlated with the tension of the sanding belt.

[0010] Furthermore, a horizontally placed support column is fixedly provided on the frame, and the support column is distributed along the left and right directions of the frame. An axially extending slide groove is provided on the support column, and the abutment plate is slidably arranged in the slide groove. The first elastic member is located in the slide groove, and one end of the first elastic member is connected to the slide groove, and the other end of the first elastic member is connected to the abutment plate.

[0011] Furthermore, the tensioning assembly includes an elastic telescopic cylinder, a connecting plate and a tensioning wheel, one end of the connecting plate is hinged on the frame, the connecting plate can swing in the vertical direction with the hinge point as the rotation center, the other end of the connecting plate is hinged to one end of the elastic telescopic cylinder, the other end of the elastic telescopic cylinder is hinged to the frame, the tensioning wheel is rotatably arranged at the center position of the connecting plate, the tensioning wheel is located in the middle and upper position of the abutment plate and the driving wheel, and the outer periphery of the tensioning wheel is in rolling contact with the inner surface of the sanding belt.

[0012] Furthermore, a second elastic member is sleeved on the outer periphery of the elastic telescopic cylinder, and the second elastic member can make the elastic telescopic cylinder extend or make the elastic telescopic cylinder have a tendency to extend.

[0013] Furthermore, an adjustment component is provided on the frame, and the adjustment component can adjust the adsorption area of ​​the outer periphery of the driving wheel. The adjustment component is configured to increase the adsorption area of ​​the lower end of the outer periphery of the driving wheel when the abutment plate moves toward the driving wheel.

[0014] Furthermore, the adjustment component includes a hydraulic telescopic cylinder and an adjusting wheel, the fixed end of the hydraulic telescopic cylinder is fixedly set on the frame, the adjusting wheel is rotatably set on the telescopic end of the hydraulic telescopic cylinder, the adjusting wheel is located at a lower position between the abutment plate and the driving wheel, the outer periphery of the adjusting wheel abuts against the inner surface of the sand belt, the hydraulic chamber of the elastic telescopic cylinder is connected with the hydraulic chamber of the hydraulic telescopic cylinder, the hydraulic telescopic cylinder and the elastic telescopic cylinder extend synchronously, and the adjusting wheel moves downward to push the inner surface of the sand belt.

[0015] Furthermore, the driving assembly includes a driving motor, the driving motor is fixedly arranged on the frame, and the driving wheel is coaxially and fixedly arranged on the rotating shaft of the driving motor.

[0016] The beneficial effects of the present invention are: The present invention can not only increase the friction between the sand belt and the driving wheel to reduce the frequency of slipping by opening a plurality of air suction holes on the outer periphery of the driving wheel, but also absorb the dust generated during the sand belt grinding process, and at the same time make the sand belt continuously vibrate to clean up the grinding debris on the inner surface of the sand belt, thereby reducing the cleaning frequency of the sand belt and improving the sand belt grinding efficiency of the workpiece.

[0017] The present invention connects the abutment plate to the frame by sliding and provides a tensioning assembly, so that when the grinding force of the workpiece is increased, the friction between the driving wheel and the sanding belt can be increased at the same time, further preventing the two from slipping, and also increasing the shaking degree of the sanding belt, thereby improving the ability of the sanding belt to clean the grinding debris on the inner surface.

[0018] The present invention provides an adjustment component, which can adjust the area of ​​the adsorption zone at the lower end of the driving wheel, so that when the area of ​​the adsorption zone at the upper end of the driving wheel is reduced, the area of ​​the adsorption zone at the lower end of the driving wheel is increased, thereby maintaining the overall area of ​​the adsorption zone unchanged, so that the adsorption effect of the adsorption zone does not change when the grinding force of the workpiece is adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a grinding device for producing aircraft parts provided by one embodiment of the present invention; Figure 2 for Figure 1 A left side view of a grinding device for producing aircraft parts provided in an embodiment; Figure 3 for Figure 1 A rear view of a grinding device for producing aircraft parts provided in an embodiment; Figure 4 for Figure 3 A partial view of a grinding device for producing aircraft parts provided in an embodiment of the present invention, taken along the AA line; Figure 5 for Figure 4 A partial enlarged view of a portion X of a grinding device for producing aircraft parts provided in an embodiment; Figure 6 A schematic diagram of the structure of a driving wheel of a grinding device for producing aircraft parts provided in one embodiment of the present invention.

[0020] in: 100, frame; 110, abutment plate; 120, support wheel; 130, sliding rod; 140, support column; 150, slide groove; 160, first elastic member; 170, vertical plate; 180, clamping block; 190, connecting bearing; 200, driving wheel; 210, air suction hole; 220, air extraction ring; 230, pipeline; 300, elastic telescopic cylinder; 310, second elastic member; 320, connecting plate; 330, tensioning wheel; 400, hydraulic telescopic cylinder; 410, adjusting wheel; 420, driving motor; 430, connecting pipe; 500. Sanding belt. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0022] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0023] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0024] Refer to the following Figure 1-Figure 6 A grinding device for producing aircraft parts provided by the present invention is described below.

[0025] A grinding device for aircraft parts production is suitable for grinding workpieces, especially for grinding aircraft parts, comprising a frame 100, wherein the left and right ends of the frame 100 are respectively provided with a driving wheel 200 and a vertically arranged abutment plate 110, such as Figure 1 and Figure 2As shown, two support wheels 120 are arranged on the abutment plate 110, and the two support wheels 120 are arranged up and down. A vertical plate 170 is arranged between the two support wheels 120. A sanding belt 500 is wound around the two support wheels 120 and the driving wheel 200. The outer surface of the sanding belt 500 between the two support wheels 120 can grind the workpiece. The operator needs to bring the workpiece to be grinded close to the sanding belt 500 between the two support wheels 120 and abut against the sanding belt 500. A driving assembly is arranged on the frame 100, and the driving assembly can drive the driving wheel 20 0 rotates, the driving wheel 200 drives the sanding belt 500 to rotate, and the sanding belt 500 rotates at a high speed to grind the workpiece to be grinded. However, after a long period of use, the friction between the inner surface of the sanding belt 500 and the driving wheel 200 in the grinding device in the prior art will gradually decrease, which will cause slippage between the driving wheel 200 and the sanding belt 500, affecting the grinding quality of the workpiece, and if the sanding belt 500 is not cleaned regularly, a large amount of grinding debris will remain on the outer surface of the sanding belt 500, thereby affecting the grinding efficiency of the sanding belt 500.

[0026] The present invention evenly opens a plurality of air intake holes 210 on the outer circumference of the driving wheel 200. Figure 1 and Figure 6 As shown, a plurality of suction holes 210 are evenly distributed along the circumference of the driving wheel 200, and a plurality of suction holes 210 are arranged in a row along the axial direction of the driving wheel 200, and the outer periphery of the driving wheel 200 is divided into a friction enhancement zone and an adsorption zone. The friction enhancement zone refers to the area where the driving wheel 200 contacts the inner surface of the sand belt 500. The suction holes 210 in this area can tightly adsorb the sand belt 500 during air intake, thereby increasing the friction between the sand belt 500 and the driving wheel 200. It can be understood that, under the premise that the friction coefficient of the contact surface between the sand belt 500 and the driving wheel 200 does not change, when the positive pressure between the driving wheel 200 and the sand belt 500 increases, the friction can be increased, thereby reducing the frequency of slipping between the driving wheel 200 and the sand belt 500; the adsorption zone refers to the area where the outer periphery of the driving wheel 200 is not in contact with the sand belt 500. The suction holes 210 in this area will also continuously inhale air, thereby being able to adsorb the dust generated when the sand belt 500 is sanded, thereby playing a role in reducing the flying of dust.

[0027] It should be noted that in the critical area between the friction enhancement zone and the adsorption zone, and above the driving wheel 200, the sanding belt 500 at this location will detach from the friction enhancement zone. During the detachment, since the adsorption force of the suction hole 210 is relatively large and the sanding belt 500 detaches from the suction hole 210 instantly, the state of the sanding belt 500 changes instantly, resulting in a shaking phenomenon. Since the sanding belt 500 continuously passes through the adsorption and detachment of the suction hole 210, the sanding belt 500 continuously shakes, and the shaking of the sanding belt 500 can shake off the grinding debris attached to the inner surface of the sanding belt 500 to a certain extent, thereby cleaning the sanding belt 500.

[0028] The present invention can not only increase the friction between the sanding belt 500 and the driving wheel 200 and reduce the frequency of slipping by opening a plurality of air suction holes 210 on the periphery of the driving wheel 200, but also absorb the dust generated during the sanding process of the sanding belt 500, and at the same time, can make the sanding belt 500 shake continuously to clean up the sanding debris on the inner surface of the sanding belt 500, thereby reducing the cleaning frequency of the sanding belt 500 and improving the sanding efficiency of the sanding belt 500 on the workpiece.

[0029] Specifically, in order to realize the air suction function of the air suction hole 210, as Figure 1 and Figure 6 As shown, an air suction component is arranged on the frame 100, and the air suction component can extract the gas inside the driving wheel 200, so that the multiple air suction holes 210 can suck air from the outside to the inside. The air suction component includes an air suction ring 220 and an air suction pump (not shown in the figure), and the air suction ring 220 is coaxially and rotatably sealed and connected to the rotating shaft of the driving wheel 200. The interior of the driving wheel 200 is hollow and connected to the interior of the air suction ring 220. A pipe 230 is connected to the air suction ring 220, one end of the pipe 230 is connected to the air suction ring 220, and the other end of the pipe 230 is connected to the air suction pump. When the air suction pump is started, the gas inside the driving wheel 200 can be extracted through the pipe 230 and the air suction ring 220, so that the air suction holes 210 on the periphery of the driving wheel 200 are continuously sucked.

[0030] It should be noted that, since the air pumping ring 220 is rotatably sealed with the driving wheel 200 , when the driving wheel 200 rotates at a high speed, the air pumping ring 220 does not rotate, thereby avoiding damage to the pipeline 230 and the air pump.

[0031] Of course, the suction component is not limited to the above structure, but can also be other suction structures. For example, instead of using the suction ring 220, the air pipe of the suction pump can be directly connected to the axis of the driving wheel 200 through a rotation seal. When the suction pump is started, the gas inside the driving wheel 200 can be sucked out.

[0032] In a further embodiment, the abutment plate 110 in the present invention is slidably arranged on the frame 100, and a first elastic member 160 is arranged on the abutment plate 110, the first elastic member 160 is a compression spring, and the other end of the first elastic member 160 is connected to the frame 100. When the workpiece is polished, it abuts against the sanding belt 500. If it is necessary to increase the sanding force of the sanding belt 500, the workpiece can be pushed in the direction close to the driving wheel 200. At this time, the abutment plate 110 moves in the direction close to the driving wheel 200 to compress the first elastic member 160. The force of the first elastic member 160 on the abutment plate 110 increases, thereby increasing the abutment force of the sanding belt 500 on the workpiece, thereby increasing the sanding force of the sanding belt 500 on the workpiece. That is to say, the sanding force of the sanding belt 500 on the workpiece is positively correlated with the degree of compression of the first elastic member 160. The greater the degree of compression of the first elastic member 160, the greater the sanding force of the sanding belt 500 on the workpiece. The frame 100 is also provided with a tensioning assembly, which can dynamically adjust the tension of the sanding belt 500 when the abutment plate 110 moves, so that the sanding belt 500 adapts to the movement of the abutment plate 110, and the area of ​​the friction enhancement zone on the periphery of the driving wheel 200 is negatively correlated with the tension of the sanding belt 500.

[0033] Specifically, the tensioning assembly in this embodiment includes an elastic telescopic cylinder 300, a connecting plate 320 and a tensioning wheel 330. Figure 1 and Figure 2 As shown, one end of the connecting plate 320 is hinged on the frame 100, as shown in FIG. Figure 3As shown, two connecting bearings 190 are fixedly connected to the frame 100, and the axes of the two connecting bearings 190 are coaxial and fixedly connected with a rotating shaft, and the rotating shaft is vertically connected to the connecting plate 320 so that the connecting plate 320 is hinged to the frame 100, and the other end of the connecting plate 320 is hinged to one end of the elastic telescopic cylinder 300, and the connecting plate 320 can swing in the vertical direction with the hinge point as the rotation center, and the other end of the elastic telescopic cylinder 300 is hinged to the frame 100, and the specific position of the connecting plate 320 is between the abutment plate 110 and the driving wheel 200. The elastic telescopic cylinder 300 is movably connected to the middle position of the connecting plate 320, and the outer periphery of the tensioning wheel 330 abuts against the inner surface of the sanding belt 500. The tensioning wheel 330 has a tendency to move upward under the action of the elastic telescopic cylinder 300, thereby tightening the sanding belt 500. When the abutting plate 110 moves in the direction close to the driving wheel 200, that is, when the abutting plate 110 moves to the right, in order to allow the elastic telescopic cylinder 300 to extend, a second elastic member 310 is sleeved on the outer periphery of the elastic telescopic cylinder 300. The second elastic member 310 is also a compression spring. The second elastic member 310 is already in a compressed state in the initial state, thereby The sanding belt 500 is tensioned, and the tensioning degree is relatively large. When the contact plate 110 moves to the right, the elastic telescopic cylinder 300 will extend under the elastic action of the second elastic member 310, thereby driving the connecting plate 320 to swing upward around the hinge point with the frame 100. At this time, the tensioning wheel 330 moves upward. Since the second elastic member 310 is partially released after the length of the elastic telescopic cylinder 300 increases, the elastic force of the second elastic member 310 on the connecting plate 320 will decrease. At this time, the overall tensioning force of the sanding belt 500 will decrease, thereby enhancing the friction of the sanding belt 500 on the drive wheel 200. That is to say, the sanding belt 500 can be detached only when the adsorption force of the suction holes 210 in the friction enhanced zone on the periphery of the driving wheel 200 on the sanding belt 500 is less than the tension of the sanding belt 500, and when the tension of the sanding belt 500 decreases, the adsorption time of the friction enhanced zone on the periphery of the driving wheel 200 and the sanding belt 500 increases, which also increases the area of ​​the friction enhanced zone, so that the state of the sanding belt 500 changes to a greater extent after it detaches from the suction holes 210, and then the degree of shaking of the sanding belt 500 driven by the suction holes 210 increases, thereby improving the ability of the sanding belt 500 to clean grinding debris.

[0034] It should be noted that if the abutment plate 110 moves toward the direction close to the driving wheel 200, it means that the degree of grinding of the workpiece is relatively high. At this time, more grinding debris will be attached to the sanding belt 500. Therefore, the tensioning wheel 330 moves upward under the action of the elastic telescopic cylinder 300 to reduce the tension of the sanding belt 500, thereby increasing the area of ​​the sanding belt 500 adsorbed by the friction enhancement zone on the periphery of the driving wheel 200. This not only increases the friction between the sanding belt 500 and the driving wheel 200, further preventing the two from slipping, but also makes the sanding belt 500 vibrate more, thereby achieving a better cleaning effect.

[0035] More specifically, in order to facilitate the sliding connection of the abutment plate 110 on the frame 100, a support column 140 is horizontally arranged on the frame 100, and the support column 140 is distributed along the left and right directions of the frame 100. The support column 140 is fixed to the frame 100 by a clamping block 180. A slide groove 150 extending along its axial direction is opened on the outer periphery of the support column 140. The first elastic member 160 is arranged in the slide groove 150. One end of the first elastic member 160 is connected to the abutment plate 110, and the other end of the first elastic member 160 is connected to the slide groove 150. A sliding rod 130 is fixedly arranged on the abutment plate 110. There are two sliding rods 130, and the two sliding rods 130 are arranged in parallel. The two sliding rods 130 are slidably arranged in the slide groove 150. A limit plate is arranged at the end of the slide groove 150. The limit plate prevents the sliding rod 130 from disengaging from the slide groove 150, and the abutment plate 110 can slide along the slide groove 150 when sliding.

[0036] In a further embodiment, an adjustment component is further provided on the frame 100, and the adjustment component is used to adjust the area of ​​the adsorption zone on the periphery of the driving wheel 200. The adjustment component is configured to increase the area of ​​the adsorption zone on the periphery of the driving wheel 200 when the abutment plate 110 moves toward the driving wheel 200, thereby increasing the number of suction holes 210 in the adsorption zone, thereby improving the adsorption strength of the adsorption zone on dust.

[0037] Specifically, Figure 1 and Figure 2 As shown, the adjustment assembly includes a hydraulic telescopic cylinder 400 and an adjustment wheel 410. The fixed end of the hydraulic telescopic cylinder 400 is fixedly arranged on the frame 100, and the adjustment wheel 410 is rotatably arranged on the telescopic end of the hydraulic telescopic cylinder 400. The position of the adjustment wheel 410 is located at a position between the abutment plate 110 and the driving wheel 200 and at a lower position. In addition, the elastic telescopic cylinder 300 in this embodiment has a hydraulic cavity. The hydraulic cavity of the hydraulic telescopic cylinder 400 is connected with the hydraulic cavity of the elastic telescopic cylinder 300, specifically, through an oil pipe (not shown in the figure), as shown in FIG. Figure 1 and Figure 2As shown, a connecting pipe 430 is provided at the upper end of the hydraulic telescopic cylinder 400, and the connecting pipe 430 is connected to the oil pipe. When the length of the elastic telescopic cylinder 300 is extended, the oil in the elastic telescopic cylinder 300 is squeezed and can enter the hydraulic cavity of the hydraulic telescopic cylinder 400, so that the telescopic end of the hydraulic telescopic cylinder 400 is extended, and the telescopic end of the hydraulic telescopic cylinder 400 drives the adjusting wheel 410 to push the inner surface of the sand belt 500 to move downward, so that the contact area of ​​the sand belt 500 under the driving wheel 200 is reduced, that is, the adsorption area of ​​the lower end of the driving wheel 200 is increased. At the same time, due to the extension of the elastic telescopic cylinder 300, the tensioning wheel 330 is driven to move upward, so that the friction enhancement area of ​​the upper end of the driving wheel 200 is increased, but the area of ​​the adsorption area at the upper end will be reduced. The present invention adopts a method of increasing the area of ​​the adsorption area at the lower end of the driving wheel 200, so that the overall area of ​​the adsorption area can be maintained unchanged, avoiding affecting the adsorption effect of the adsorption area on dust.

[0038] It should be noted that if the adjustment component is not provided, when the abutment force of the workpiece increases, the area of ​​the friction enhancement zone of the driving wheel 200 increases, which will cause the area of ​​the adsorption zone to decrease, thereby weakening the adsorption effect of the adsorption zone on dust. However, by providing the adjustment component, when the area of ​​the adsorption zone at the upper end of the driving wheel 200 decreases, the area of ​​the adsorption zone at the lower end of the driving wheel 200 can be increased at the same time, thereby maintaining the overall area of ​​the adsorption zone unchanged.

[0039] Specifically, in the embodiment of the present invention, the driving assembly includes a driving motor 420, which is fixedly arranged on the frame 100, and the driving wheel 200 is coaxially and fixedly connected to the rotating shaft of the driving motor 420. When the driving motor 420 is started, the driving motor 420 drives the driving wheel 200 to rotate, and the driving wheel 200 drives the sanding belt 500 to rotate.

[0040] The specific working process of a grinding device for producing aircraft parts provided by the present invention is described in combination with the above embodiments: Start the vacuum pump (not shown in the figure) and the drive motor 420. The vacuum pump extracts the gas inside the drive wheel 200 through the pipe 230 and the vacuum ring 220, so that the multiple suction holes 210 on the periphery of the drive wheel 200 can continuously absorb air. The drive motor 420 rotates to drive the drive wheel 200 to rotate, and the drive wheel 200 drives the sanding belt 500 to rotate. The operator places the workpiece to be polished against the outer surface of the sanding belt 500 between the two support wheels 120 to polish the workpiece.

[0041] If the grinding force of the workpiece needs to be increased, the workpiece can be pushed to move toward the abutment plate 110, so that the abutment plate 110 can move toward the driving wheel 200. Figure 1 and Figure 2As shown, that is, it moves to the right, the first elastic member 160 in the slide groove 150 of the support column 140 is compressed, thereby increasing the abutment force of the abrasive belt 500 on the workpiece, thereby increasing the grinding force of the abrasive belt 500 on the workpiece. As the abutment plate 110 moves to the right, the elastic telescopic cylinder 300 gradually extends under the action of the second elastic member 310 to adapt to the rightward movement of the abutment plate 110. As the length of the elastic telescopic cylinder 300 increases, the second elastic member 310 is partially released, so the second elastic member 310 The elastic force on the connecting plate 320 is reduced, thereby reducing the tension of the sand belt 500. When the tension of the sand belt 500 is reduced, the area of ​​the sand belt 500 adsorbed by the adsorption holes in the friction enhancement zone of the outer periphery of the driving wheel 200 increases. This is because the tension of the sand belt 500 is reduced, which increases the time that the suction holes 210 of the driving outer periphery can adsorb the sand belt 500, so that the sand belt 500 can produce more violent shaking when it leaves the friction enhancement zone, so that the sand belt 500 can shake off the grinding debris attached to its surface. At the same time, when the elastic telescopic cylinder 300 is extended, the internal oil is squeezed into the hydraulic telescopic cylinder 400, so that the telescopic end of the hydraulic telescopic cylinder 400 is extended, and the regulating wheel 410 on the hydraulic telescopic cylinder 400 pushes the inner surface of the sand belt 500 so that the part of the sand belt 500 moves downward, and the adsorption area at the lower end of the driving wheel 200 increases to compensate for the reduction in the area of ​​the upper end adsorption area, thereby maintaining the overall adsorption area unchanged, so that the effect of the adsorption area on dust adsorption does not change.

[0042] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A grinding device for aircraft parts production, characterized in that: include: A frame, wherein driving wheels and abutment plates distributed vertically are respectively arranged at both ends of the frame, and two supporting wheels are arranged on the abutment plates, and the two supporting wheels are distributed up and down; A sanding belt, the inner surface of which is wound around the driving wheel and two supporting wheels, the driving wheel rotates to drive the sanding belt to rotate, and the outer surface of the sanding belt between the two supporting wheels can grind the workpiece; A driving assembly, wherein the driving assembly can drive the driving wheel to rotate; A plurality of suction holes are evenly arranged on the outer circumference of the driving wheel, and the plurality of suction holes are evenly distributed along the circumference of the driving wheel and arranged in a row along the axial direction of the driving wheel. The plurality of suction holes form a friction enhancement zone and an adsorption zone on the outer circumference of the driving wheel. The suction holes in the friction enhancement zone can adsorb the inner surface of the sand belt to increase the friction between the inner surface of the sand belt and the driving wheel, and the suction holes in the adsorption zone do not contact the inner surface of the sand belt to adsorb dust.

2. The grinding device for producing aircraft parts according to claim 1, characterized in that: The interior of the driving wheel is hollow, and an air suction component is arranged on the frame. The air suction component can extract the air inside the driving wheel to give the air suction hole an adsorption force.

3. The grinding device for producing aircraft parts according to claim 2, characterized in that: The suction assembly includes an air suction ring and an air suction pump. The air suction ring is coaxially and rotatably sealed and connected to the rotating shaft of the driving wheel. The interior of the air suction ring is hollow and connected to the interior of the driving wheel. One end of a pipe is connected to the air suction ring, and the other end of the pipe is connected to the air suction pump.

4. The grinding device for producing aircraft parts according to claim 1, characterized in that: The abutment plate is slidably arranged on the frame, and a first elastic member is arranged between the abutment plate and the frame. When the workpiece is polished, the abutment plate can be pushed to move in a direction close to the driving wheel to compress the first elastic member. The friction force of the sanding belt on the abutment plate on the workpiece is positively correlated with the degree to which the first elastic member is compressed. A tensioning assembly is arranged on the frame, and the tensioning assembly can dynamically adjust the tension of the sanding belt when the abutment plate moves. The area of ​​the friction enhancement zone on the driving wheel is negatively correlated with the tension of the sanding belt.

5. The grinding device for producing aircraft parts according to claim 4, characterized in that: A horizontally placed support column is fixedly provided on the frame, and the support column is distributed along the left and right directions of the frame. An axially extending slide groove is provided on the support column, and the abutment plate is slidably provided in the slide groove. The first elastic member is located in the slide groove, and one end of the first elastic member is connected to the slide groove, and the other end of the first elastic member is connected to the abutment plate.

6. The grinding device for producing aircraft parts according to claim 4, characterized in that: The tensioning assembly includes an elastic telescopic cylinder, a connecting plate and a tensioning wheel, one end of the connecting plate is hinged on the frame, the connecting plate can swing in the vertical direction with the hinge point as the rotation center, the other end of the connecting plate is hinged to one end of the elastic telescopic cylinder, the other end of the elastic telescopic cylinder is hinged to the frame, the tensioning wheel is rotatably arranged at the center position of the connecting plate, the tensioning wheel is located in the middle and upper position of the abutment plate and the driving wheel, and the outer periphery of the tensioning wheel is in rolling contact with the inner surface of the sand belt.

7. The grinding device for producing aircraft parts according to claim 6, characterized in that: A second elastic member is sleeved on the outer periphery of the elastic telescopic cylinder, and the second elastic member can make the elastic telescopic cylinder extend or make the elastic telescopic cylinder have a tendency to extend.

8. The grinding device for producing aircraft parts according to claim 6, characterized in that: The frame is provided with an adjustment component, which can adjust the adsorption area of ​​the outer periphery of the driving wheel. The adjustment component is configured to increase the adsorption area of ​​the lower end of the outer periphery of the driving wheel when the abutment plate moves toward the driving wheel.

9. The grinding device for producing aircraft parts according to claim 8, characterized in that: The adjusting assembly includes a hydraulic telescopic cylinder and an adjusting wheel. The fixed end of the hydraulic telescopic cylinder is fixedly arranged on a frame. The adjusting wheel is rotatably arranged on the telescopic end of the hydraulic telescopic cylinder. The adjusting wheel is located at a lower position between the abutment plate and the driving wheel. The outer periphery of the adjusting wheel abuts against the inner surface of the sand belt. The hydraulic cavity of the elastic telescopic cylinder is communicated with the hydraulic cavity of the hydraulic telescopic cylinder. The hydraulic telescopic cylinder and the elastic telescopic cylinder are extended synchronously. The adjusting wheel moves downward to push the inner surface of the sand belt.

10. The grinding device for producing aircraft parts according to claim 1, characterized in that: The driving assembly comprises a driving motor, the driving motor is fixedly arranged on the frame, and the driving wheel is coaxially and fixedly arranged on the rotating shaft of the driving motor.

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