Aluminum alloy base material surface treatment device and method

Abstract

The invention relates to the technical field of grinding, in particular to an aluminum alloy base material surface treatment device and method.The aluminum alloy base material surface treatment device comprises a rack, a grinding assembly is arranged on the rack and comprises a driving wheel and two driven wheels, and the driving wheel and the two driven wheels are sleeved with abrasive belts; an objective table capable of sliding up and down is arranged on the rack, and the objective table can move a to-be-polished workpiece to the position under the abrasive belt; the rack is further provided with a pressing device, the pressing device comprises a rotating disc, and the bottom face of the rotating disc is used for pressing the abrasive belt. The rotating disc comprises an inner disc and an outer disc, and the inner disc and the outer disc are in sealed rotating fit; in the grinding process, the abrasive belt is pressed by the rotating disc and rotates in the moving direction of the abrasive belt, the linear speed of the maximum circumference of the inner disc is kept consistent with the linear speed of the maximum circumference of the outer disc, the relative displacement of the abrasive belt and the pressing device can be reduced on the whole, and the service life of the abrasive belt and the service life of the pressing device are prolonged.

Description

Technical Field

[0001] The present invention relates to the field of grinding technology, and in particular to a device and method for surface treatment of an aluminum alloy substrate. Background Art

[0002] Aluminum alloy substrate is a widely used substrate material in the electronics industry. It has good thermal conductivity, electromagnetic shielding and mechanical strength. It also has good machinability and can be processed by bending, stamping, cutting and welding. The surface of aluminum alloy substrate is usually polished by a belt grinder.

[0003] In the prior art, when a belt grinder is grinding an aluminum alloy substrate workpiece, it is necessary to use a pressure plate to press the sanding belt, and then the sanding belt contacts the aluminum alloy substrate workpiece to achieve grinding. In this way, during the grinding process, there is always relative movement between the sanding belt and the pressure plate, which will not only wear the sanding belt, but also the pressure plate, and at the same time cause the pressure plate and the sanding belt to heat up, affecting the grinding effect. Summary of the invention

[0004] Based on this, it is necessary to provide an aluminum alloy substrate surface treatment device and method to address the technical problems of wear and heat generation of the pressing plate and the abrasive belt during the use of the current belt grinder.

[0005] The above purpose is achieved through the following technical solutions: A surface treatment device for an aluminum alloy substrate comprises a frame, on which a grinding assembly is fixed, the grinding assembly comprises a driving wheel and two driven wheels, on which a sanding belt is sleeved, and the frame is provided with a loading platform which can slide up and down, the loading platform extends in the left and right directions, and the loading platform can move a workpiece to be ground to just below the sanding belt; the frame is also provided with a clamping device, the clamping device comprises a rotating disk, and the bottom surface of the rotating disk is used to clamp the sanding belt; the rotating disk comprises an inner disk and an outer disk, and the inner disk and the outer disk are sealed and rotated together; during grinding, the rotating disk clamps the sanding belt and rotates along the moving direction of the sanding belt, and the maximum circumferential linear velocity of the inner disk is consistent with the maximum circumferential linear velocity of the outer disk.

[0006] Furthermore, a track is provided on the frame, and the track is arranged parallel to the loading platform; a central axis is fixed to the bottom of the inner plate, a fixed sleeve is fixed to the outside of the central axis, and a slider is connected to the fixed sleeve, and the slider can slide along the track.

[0007] Furthermore, the fixing sleeve can slide up and down along the sliding block.

[0008] Furthermore, a water inlet pipe and a water outlet pipe are provided inside the central axis. The water inlet pipe is located at the center of the central axis, and a plurality of water outlet pipes are provided, and the plurality of water outlet pipes are evenly distributed around the water inlet pipe.

[0009] Furthermore, a water tank is fixed at the bottom of the central axis, and the bottom end of the water inlet pipe is lower than the bottom end of the water outlet pipe and extends into the water tank, so that the rotation of the inner disk can drive the central axis to rotate and suck the liquid in the water tank into the water inlet pipe.

[0010] Furthermore, the interior of the inner disk is provided with a plurality of radially extending liquid passages, and the liquid passages are divided into an upper and an lower part, including a first liquid inlet channel located at the upper part and a first liquid outlet channel located at the lower part, and the plurality of first liquid inlet channels are connected to the water inlet pipe, and the plurality of first liquid outlet channels correspond to and are connected to the plurality of water outlet pipes one by one.

[0011] Furthermore, the outer circumferential surface of the inner disk is provided with a first annular groove, and two first annular grooves are provided above and below. The upper first annular groove is connected to multiple first liquid inlet channels, and the lower first annular groove is connected to multiple first liquid outlet channels.

[0012] Furthermore, a plurality of second liquid inlet channels and second liquid outlet channels are provided inside the outer disk, the second liquid inlet channels are connected to the first liquid inlet channels, the second liquid outlet channels are connected to the first liquid outlet channels; the second liquid inlet channels are connected to the second liquid outlet channels.

[0013] Furthermore, the inner circumferential surface of the outer disk is provided with a second annular groove, and two second annular grooves are provided above and below. The upper second annular groove is connected to multiple second liquid inlet channels, and the lower second annular groove is connected to multiple second liquid outlet channels. The second annular groove is connected to the first annular groove accordingly.

[0014] A method for treating the surface of an aluminum alloy substrate adopts the above-mentioned device for treating the surface of an aluminum alloy substrate and adopts the following steps: 1) Place the workpiece to be polished on the stage, and then move the stage upward until the workpiece to be polished contacts the abrasive belt; 2) Adjust the position of the clamping device so that the rotating disk is aligned with the workpiece to be polished and the abrasive belt is pressed; 3) The grinding assembly and the clamping device are operated synchronously, so that the abrasive belt rotates counterclockwise to grind the workpiece to be ground, and the rotating disk rotates counterclockwise at the same time.

[0015] The beneficial effects of the present invention are: The surface treatment device and method of the aluminum alloy substrate provided by the present invention can not only press the sanding belt during grinding, but also rotate along the moving direction of the sanding belt, so as to avoid that only the sanding belt moves while the pressing device does not move, thereby increasing the relative displacement between the sanding belt and the pressing device and causing wear of the sanding belt and the pressing device. The linear speed of the inner disk of the rotating disk is consistent with the linear speed of the outer disk, thereby avoiding that the sanding belt is pulled due to inconsistent relative displacement between the inside and the outside of the rotating disk, thereby reducing the relative displacement between the sanding belt and the pressing device as a whole and extending the service life of the sanding belt and the pressing device.

[0016] Secondly, when the inner disk rotates, the central shaft will drive the rotation of the central shaft, and the water inlet pipe will be driven to rotate, so that the liquid in the water tank can be sucked into the water inlet pipe under the action of centrifugal force, and then the liquid will enter the first liquid inlet channel, the first annular groove, the second annular groove, the second liquid inlet channel, the second liquid outlet channel, the water outlet pipe in sequence, and finally flow back to the water tank, thereby dissipating the heat of the clamping device and the sanding belt and improving the grinding effect.

[0017] Third, the clamping device can slide left and right in the frame to adjust the position of the clamping belt. At the same time, the clamping device can also slide up and down in the frame to adjust the degree of clamping the sanding belt. In this way, the position and clamping degree can be adjusted for different workpieces to be polished to ensure the polishing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a surface treatment device for an aluminum alloy substrate provided by one embodiment of the present invention; Figure 2 A schematic diagram of the internal structure of an aluminum alloy substrate surface treatment device provided by one embodiment of the present invention; Figure 3 A front view of a surface treatment device for an aluminum alloy substrate provided by one embodiment of the present invention; Figure 4 for Figure 3 Middle AA section view; Figure 5 for Figure 4 Enlarged image at the center X; Figure 6 A schematic structural diagram of a pressing device in an aluminum alloy substrate surface treatment device provided in one embodiment of the present invention.

[0019] Among them: 100, frame; 200, loading platform; 300, grinding assembly; 301, protective plate; 302, driven wheel; 303, driving wheel; 304, sanding belt; 305, dust suction port; 306, track; 400, clamping device; 401, slider; 402, fixed sleeve; 403, central axis; 4031, water inlet pipe; 4032, water outlet pipe; 4033, first annular groove; 4034, first liquid inlet channel; 4035, first liquid outlet channel; 404, outer disk; 4041, second liquid inlet channel; 4042, second liquid outlet channel; 4043, second annular groove; 406, water tank. DETAILED DESCRIPTION

[0020] 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.

[0021] 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 this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. 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.

[0022] 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.

[0023] like Figures 1 to 6As shown, an aluminum alloy substrate surface treatment device provided by an embodiment of the present invention includes a frame 100, a grinding assembly 300 is fixed on the frame 100, and the grinding assembly 300 includes a driving wheel 303 and two driven wheels 302, and a sanding belt 304 is sleeved on the driving wheel 303 and the two driven wheels 302, and a protective plate 301 is sleeved on the outside of the sanding belt 304, and a dust suction port 305 is provided at one end of the protective plate 301, and the dust suction port 305 can discharge the debris generated by grinding; the frame 100 is provided with a stage 200 that can slide up and down, The stage 200 extends in the left-right direction, and the stage 200 can move the workpiece to be polished to the right below the abrasive belt 304; the frame 100 is also provided with a clamping device 400, and the clamping device 400 includes a rotating disk, and the bottom surface of the rotating disk is used to clamp the abrasive belt 304; the rotating disk includes an inner disk and an outer disk 404, and the inner disk and the outer disk 404 are sealed and rotated together; during polishing, the rotating disk presses the abrasive belt 304 and rotates along the moving direction of the abrasive belt 304, and the maximum circumferential linear velocity of the inner disk is consistent with the maximum circumferential linear velocity of the outer disk 404. In this embodiment, the inner disk is driven to rotate by a first motor (not shown in the figure), and the outer disk 404 is driven to rotate by a second motor (not shown in the figure). The driving motor (not shown in the figure) drives the driving wheel 303 to rotate, driving the abrasive belt 304 to rotate, and the abrasive belt 304 drives the driven wheel 302 to rotate, and the driven wheel 302 can tighten the abrasive belt 304. Specifically, the inner disk is directly connected to the driving shaft of the first motor, so that the first motor drives the inner disk to rotate; a rotating ring is fixed on the outer disk 404, and the rotating ring is provided with rotating teeth, and a gear is provided on the driving shaft of the second motor, and the rotating ring is driven to rotate by the gear, thereby driving the outer disk 404 to rotate. The frame 100 is provided with a plurality of card slots, and after the stage 200 slides up and down along the slide slot of the frame 100 to a certain position, the stage 200 can be positioned by inserting a movable pin into the card slot.

[0024] In one embodiment, the clamping device 400 is slidably disposed on the frame 100, and the frame 100 is provided with a track 306, and the track 306 is arranged parallel to the stage 200; a central axis 403 is fixed to the bottom of the inner disk, and a fixed sleeve 402 is fixed to the outside of the central axis 403, and the fixed sleeve 402 is connected to a slider 401, and the slider 401 can slide along the track 306. In this way, the clamping device 400 can slide left and right along the frame 100, so as to adjust the clamping position of the rotating disk. In this embodiment, the left and right movement of the clamping device 400 can be manually pushed. In other embodiments, the slider 401 can be driven to slide along the track 306 by a telescopic cylinder.

[0025] In one embodiment, the fixing sleeve 402 can slide up and down along the slider 401. Specifically, a sliding groove extending up and down is provided in the slider 401, and a convex block is provided on the fixing sleeve 402. The convex block can slide up and down along the sliding groove, and the convex block is driven to slide by a telescopic cylinder (not shown in the figure). By controlling the pressing device 400 to move up and down, the degree to which the rotating disk presses the abrasive belt 304 can be adjusted.

[0026] In one embodiment, a water inlet pipe 4031 and a water outlet pipe 4032 are provided inside the central axis 403 . The water inlet pipe 4031 is located at the center of the central axis 403 . There are multiple water outlet pipes 4032 , which are evenly distributed around the water inlet pipe 4031 .

[0027] In one embodiment, a water tank 406 is fixed to the bottom of the central shaft 403, and the bottom end of the water inlet pipe 4031 is lower than the bottom end of the water outlet pipe 4032 and extends into the water tank 406, so that the rotation of the inner disk can drive the central shaft 403 to rotate and suck the liquid in the water tank 406 into the water inlet pipe 4031. In this embodiment, the liquid is cooling water.

[0028] In one embodiment, a plurality of radially extending liquid passages are provided inside the inner disk, and the liquid passages are divided into two parts, an upper part and an lower part, including a first liquid inlet channel 4034 located at the upper part and a first liquid outlet channel 4035 located at the lower part, and the plurality of first liquid inlet channels 4034 are connected to the water inlet pipe 4031, and the plurality of first liquid outlet channels 4035 correspond to and are connected to the plurality of water outlet pipes 4032 one by one.

[0029] In one embodiment, the outer circumferential surface of the inner disk is provided with a first annular groove 4033, and two first annular grooves 4033 are provided above and below. The upper first annular groove 4033 is connected to multiple first liquid inlet channels 4034, and the lower first annular groove 4033 is connected to multiple first liquid outlet channels 4035.

[0030] In one embodiment, the outer disk 404 is provided with a plurality of second liquid inlet channels 4041 and second liquid outlet channels 4042 inside, the second liquid inlet channels 4041 are connected to the first liquid inlet channels 4034 correspondingly, the second liquid outlet channels 4042 are connected to the first liquid outlet channels 4035 correspondingly; the second liquid inlet channels 4041 are connected to the second liquid outlet channels 4042.

[0031] In one embodiment, the inner circumferential surface of the outer disk 404 is provided with a second annular groove 4043, and two second annular grooves 4043 are provided in the upper and lower parts. The upper second annular groove 4043 is communicated with a plurality of second liquid inlet channels 4041, and the lower second annular groove 4043 is communicated with a plurality of second liquid outlet channels 4042. The second annular groove 4043 is communicated with the first annular groove 4033 in correspondence. The first annular groove 4033 and the second annular groove 4043 are provided, and when the inner disk and the outer disk 404 rotate relative to each other, the liquid first enters the first annular groove 4033 and the second annular groove 4043 for storage, and then the second liquid inlet channel 4041 is communicated with the first liquid inlet channel 4034 in correspondence, and the second liquid outlet channel 4042 is communicated with the first liquid outlet channel 4035 in correspondence, so that the liquid can realize circulation.

[0032] In combination with the above embodiments, the use principle and working process of the embodiments of the present invention are as follows: The surface treatment device for aluminum alloy substrate provided by the present invention is used. When the workpiece to be polished is first placed on the stage 200, and then the stage 200 is moved upward until the workpiece to be polished contacts the abrasive belt 304; then the up, down, left and right positions of the clamping device 400 are adjusted so that the rotating disk is aligned with the workpiece to be polished and the abrasive belt 304 is pressed, and then the first motor, the second motor and the driving motor are controlled to operate so that the abrasive belt 304 rotates counterclockwise, and at the same time, the outer disk 404 and the inner disk both rotate counterclockwise, so that the abrasive belt 304 and the rotating disk both move, so as to avoid that only the abrasive belt 304 moves while the rotating disk does not move, thereby increasing the relative displacement between the abrasive belt 304 and the rotating disk, causing damage to the abrasive belt 304 and the rotating disk, and the maximum circumferential linear velocity of the inner disk is consistent with the maximum circumferential linear velocity of the outer disk 404, so as to avoid that the abrasive belt 304 is pulled due to inconsistent displacement between the inner and outer parts of the rotating disk, thereby reducing the relative displacement between the abrasive belt 304 and the rotating disk as a whole, and extending the service life of the abrasive belt 304 and the rotating disk.

[0033] At the same time, when the inner disk rotates, it will drive the central shaft 403 to rotate, and the central shaft 403 will drive the water inlet pipe 4031 to rotate. Under the action of centrifugal force, the cooling water in the water tank 406 can be sucked into the water inlet pipe 4031, and then the liquid will enter the first liquid inlet channel 4034, the first annular groove 4033, the second annular groove 4043, the second liquid inlet channel 4041, the second liquid outlet channel 4042, the water outlet pipe 4032 in sequence, and finally flow back to the water tank 406, and the cycle will be repeated so that the cooling water can dissipate the heat of the clamping device 400 and the sanding belt 304, thereby avoiding overheating of the sanding belt 304 and the clamping device 400 and affecting the grinding, thereby improving the grinding effect.

[0034] A method for treating the surface of an aluminum alloy substrate adopts the above-mentioned device for treating the surface of an aluminum alloy substrate and adopts the following steps: 1) placing the workpiece to be polished on the stage 200, and then moving the stage 200 upward until the workpiece to be polished contacts the abrasive belt 304; 2) Adjust the position of the clamping device 400 so that the rotating disk is aligned with the workpiece to be polished and the abrasive belt 304 is pressed; 3) The grinding assembly 300 and the clamping device 400 are operated synchronously, so that the sanding belt 304 rotates counterclockwise to grind the workpiece to be grinded, and the rotating disk rotates counterclockwise at the same time.

[0035] 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.

[0036] 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 surface treatment device for an aluminum alloy substrate, characterized in that: The machine comprises a frame, on which a grinding assembly is provided, wherein the grinding assembly comprises a driving wheel and two driven wheels, on which a sanding belt is sleeved, and on which a loading platform which can slide up and down is provided, wherein the loading platform extends in the left-right direction, and the loading platform can move the workpiece to be ground to the position directly below the sanding belt; the frame is also provided with a clamping device, wherein the clamping device comprises a rotating disk, and the bottom surface of the rotating disk is used for clamping the sanding belt; the rotating disk comprises an inner disk and an outer disk, and the inner disk is sealed and rotated with the outer disk; during grinding, the rotating disk clamps the sanding belt and rotates along the moving direction of the sanding belt, and the maximum circumferential linear velocity of the inner disk is consistent with the maximum circumferential linear velocity of the outer disk.

2. The aluminum alloy substrate surface treatment device according to claim 1, characterized in that: The frame is provided with a track, and the track is arranged parallel to the loading platform; a central axis is fixed to the bottom of the inner plate, a fixed sleeve is fixed to the outside of the central axis, and a slider is connected to the fixed sleeve, and the slider can slide along the track.

3. The aluminum alloy substrate surface treatment device according to claim 2, characterized in that: The fixing sleeve can slide up and down along the sliding block.

4. The aluminum alloy substrate surface treatment device according to claim 2, characterized in that: A water inlet pipe and a water outlet pipe are arranged inside the central axis. The water inlet pipe is located at the center of the central axis. There are multiple water outlet pipes, and the multiple water outlet pipes are evenly distributed around the water inlet pipe.

5. The aluminum alloy substrate surface treatment device according to claim 4, characterized in that: A water tank is fixed at the bottom of the central axis, and the bottom end of the water inlet pipe is lower than the bottom end of the water outlet pipe and extends into the water tank, so that the rotation of the inner disk can drive the central axis to rotate and suck the liquid in the water tank into the water inlet pipe.

6. The aluminum alloy substrate surface treatment device according to claim 4, characterized in that: The interior of the inner disk is provided with a plurality of radially extending liquid passages, and the liquid passages are divided into an upper and an lower part, including a first liquid inlet channel located at the upper part and a first liquid outlet channel located at the lower part. The plurality of first liquid inlet channels are connected to the water inlet pipe, and the plurality of first liquid outlet channels correspond to and are connected to the plurality of water outlet pipes one by one.

7. The aluminum alloy substrate surface treatment device according to claim 6, characterized in that: The outer peripheral surface of the inner disk is provided with a first annular groove, and two first annular grooves are provided in an upper and a lower manner. The upper first annular groove is communicated with a plurality of first liquid inlet channels, and the lower first annular groove is communicated with a plurality of first liquid outlet channels.

8. The aluminum alloy substrate surface treatment device according to claim 6 or 7, characterized in that: The outer disk is provided with a plurality of second liquid inlet channels and second liquid outlet channels. The second liquid inlet channels are connected to the first liquid inlet channels, and the second liquid outlet channels are connected to the first liquid outlet channels. The second liquid inlet channels are connected to the second liquid outlet channels.

9. The aluminum alloy substrate surface treatment device according to claim 8, characterized in that: The inner circumferential surface of the outer disk is provided with a second annular groove, and two second annular grooves are provided in an upper and a lower manner. The upper second annular groove is communicated with a plurality of second liquid inlet channels, and the lower second annular groove is communicated with a plurality of second liquid outlet channels.

10. A method for surface treatment of aluminum alloy substrate, characterized in that: The aluminum alloy substrate surface treatment device according to any one of claims 1 to 9 is used, and the following steps are adopted; 1) Place the workpiece to be polished on the stage, and then move the stage upward until the workpiece to be polished contacts the abrasive belt; 2) Adjust the position of the clamping device so that the rotating disk is aligned with the workpiece to be polished and the abrasive belt is pressed; 3) Make the grinding assembly and the clamping device run synchronously, so that the abrasive belt rotates counterclockwise to grind the workpiece to be ground, and the rotating disk rotates counterclockwise at the same time.

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