A grinding structure for an asymmetric bent part

Abstract

The utility model provides a grinding structure for an asymmetric curved part, comprising a feed disk and a grinding wheel located on one side of the feed disk, a plurality of feed points are arranged in a circular array on the feed disk, the shape of the feed points is adapted to the shape of the asymmetric curved part, both ends of the plurality of feed points are located on a virtual circle, the virtual circle is concentric with the feed disk, the feed disk and the grinding wheel partially overlap, and when the feed disk rotates, the feed points pass through the overlapping area of ​​the feed disk and the grinding wheel. When the asymmetric curved part is ground by the grinding wheel, since both ends of the plurality of feed points are located on a virtual circle, the virtual circle is concentric with the feed disk, the two ends of the asymmetric curved part are on the same grinding path, thereby avoiding the problem of excessive size difference at the two ends of the asymmetric curved part due to inconsistent wear and consumption of the inner and outer rings of the grinding wheel after grinding, and can alleviate the situation where the difference in the plane size of the asymmetric curved part is too large, thereby reducing the number of sand repairs.

Description

Technical Field

[0001] The utility model relates to the technical field of parts grinding, in particular to a grinding structure for an asymmetric bent part. Background Art

[0002] When grinding asymmetric bent parts, a rotating grinding wheel on a vertical double-end grinder is usually used for grinding. Due to the inconsistent wear and tear of the inner and outer rings of the grinding wheel after grinding, the size difference at both ends of the asymmetric bent parts is too large, and the difference in the plane size of the asymmetric bent parts is too large, and the number of sand repairs will increase. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model proposes a grinding structure for an asymmetric bent part, which can prevent the problem of excessive size difference between the two ends of the asymmetric bent part and excessive size difference in the plane of the asymmetric bent part, and can reduce the number of times of sand repair.

[0004] The technical solution of the utility model is achieved in this way:

[0005] A grinding structure for an asymmetric bent part comprises a feed tray and a grinding wheel located on one side of the feed tray. A plurality of feed points are arranged in a circular array on the feed tray. The shapes of the feed points match the shape of the asymmetric bent part. Both ends of the plurality of feed points are located on a virtual circle. The virtual circle is concentric with the feed tray. The feed tray and the grinding wheel partially overlap. When the feed tray rotates, the feed points pass through the overlapping area of ​​the feed tray and the grinding wheel.

[0006] Preferably, the corner of the feeding point farthest from the center of the feeding tray is the farthest corner, and the farthest corners of multiple feeding points are all located on another virtual circle, and the other virtual circle is cocentric with the feeding tray.

[0007] Preferably, two grinding wheels are provided, the two grinding wheels are arranged up and down, and the feeding tray extends between the two grinding wheels.

[0008] Preferably, the height of the feeding point is smaller than the height of the asymmetric bending part.

[0009] Preferably, both sides of the middle of the feeding hole extend outward to form a groove for conveniently taking out the asymmetric bent piece.

[0010] Preferably, the feeding tray is also provided with a plurality of drainage openings, and the drainage openings are located on the inner side of the feeding holes.

[0011] Preferably, the plurality of drain outlets are arranged in a circular array.

[0012] Preferably, the number of the drainage outlets is 4 to 8.

[0013] Preferably, the number of feeding points is 6 to 10.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] When the asymmetric bent part placed in the feeding point passes through the overlapping area of ​​the feeding disk and the grinding wheel, the asymmetric bent part is ground by the grinding wheel. Since both ends of the multiple feeding points are located on a virtual circle, the virtual circle is concentric with the feeding disk, so that the two ends of the asymmetric bent part are on the same grinding path, thereby avoiding the problem of excessive size difference at the two ends of the asymmetric bent part due to inconsistent wear and consumption of the inner and outer circles of the grinding wheel after grinding, and can also ensure that the two ends of the asymmetric bent part are always in contact with the same circle position on the grinding wheel when passing through the grinding wheel, which can alleviate the situation where the difference in the plane size of the asymmetric bent part is too large, thereby reducing the number of sand repairs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the feeding disc and the grinding wheel in the utility model.

[0018] Figure ID:

[0019] 1-feeding plate; 11-feeding point; 111-roundest corner; 12-groove; 13-drainage outlet; 2-grinding wheel; 3-asymmetric bending part. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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 on the present utility model. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] See also Figure 1 and Figure 2A grinding structure for an asymmetric curved part comprises a feed tray 1 and a grinding wheel 2 located on one side of the feed tray 1. A plurality of feed points 11 are arranged in a circular array on the feed tray 1. The shape of the feed points 11 matches the shape of the asymmetric curved part 3. The feed points 11 are used to accommodate the asymmetric curved part 3. Both ends of the plurality of feed points 11 are located on a virtual circle a. The virtual circle a is concentric with the feed tray 1. The feed tray 1 and the grinding wheel 2 partially overlap. When the feed tray 1 rotates, the feed points 11 pass through the overlapping area of ​​the feed tray 1 and the grinding wheel 2. When the asymmetric bent part 3 placed in the feeding point 11 passes through the overlapping area of ​​the feeding disk 1 and the grinding wheel 2, the asymmetric bent part 3 is ground by the grinding wheel 2. Since both ends of the multiple feeding points 11 are located on a virtual circle a, and the virtual circle a is concentric with the feeding disk 1, the two ends of the asymmetric bent part 3 are on the same grinding path, thereby avoiding the problem of excessive size difference between the two ends of the asymmetric bent part due to inconsistent wear and consumption of the inner and outer rings of the grinding wheel after grinding, and can also ensure that the two ends of the asymmetric bent part 3 are always in contact with the same circle position on the grinding wheel 2 when passing through the grinding wheel 2, which can alleviate the situation where the difference in the plane size of the asymmetric bent part is too large, thereby reducing the number of sand repairs. When using the existing feeding plate whose two ends of the feeding point 11 are not on the same circle, after 2 hours of sand repair, the size difference between the two ends of the asymmetric bent part 3 exceeds 0.07mm, and the size difference of the plane of the asymmetric bent part 3 exceeds 0.08mm after 2 hours of processing, and the defective rate reaches more than 65%. Customers often complain that the size difference of the asymmetric bent part 3 is too large, and there will be returns due to size problems. A large number of personnel are required to conduct size re-inspection, and a large amount of manpower is required to repair the flatness of the ground surface; using the grinding structure of the asymmetric bent part, after 4 hours of data collection, it is known that the size difference between the two ends of the asymmetric bent part 3 does not exceed 0.015mm, and the size difference of the plane of the asymmetric bent part 3 is less than 0.08mm, and the qualified rate reaches more than 85%, which can meet customer requirements, save 50% of the flatness repair personnel investment, and reduce the number of abnormal sand repairs of the grinding wheel. Previously, 4 sand repairs were required in a single shift, but now only 2 times are required. That is, compared with the existing feed plate, the grinding structure of the asymmetric bent part has obvious advantages, which can avoid the problem of excessive size difference and plane size difference at both ends of the asymmetric bent part due to inconsistent wear and consumption of the inner and outer rings of the grinding wheel after grinding, thereby improving the product qualification rate.

[0023] See also Figure 2, the corner of the feeding point 11 farthest from the center of the feeding plate 1 is the farthest corner 111, and the farthest corners 111 of the plurality of feeding points 11 are all located on another virtual circle b, and the other virtual circle b is concentric with the feeding plate 1. Since the farthest corners 111 of the plurality of feeding points 11 are all located on another virtual circle b, the asymmetric curved parts 3 are placed in the feeding points 11, so that the farthest corners of all asymmetric curved parts 3 are also located in a virtual circle. When grinding, the farthest corners of all asymmetric curved parts 3 are on the same grinding path, which can further alleviate the situation where the difference in the plane size of the asymmetric curved parts is too large, thereby reducing the number of sand repairs and improving the machine utilization rate.

[0024] Preferably, two grinding wheels 2 are provided, the two grinding wheels 2 are provided up and down, and the feed tray 1 extends between the two grinding wheels 2. By providing two grinding wheels 2, the two grinding wheels 2 grind the top surface and the bottom surface of the asymmetric bending part 3 respectively, thereby improving the grinding efficiency.

[0025] Preferably, the height of the feeding point 11 is less than the height of the asymmetric curved part 3. The height of the feeding point 11 is less than the height of the asymmetric curved part 3 so that the top surface and / or the bottom surface of the asymmetric curved part 3 protrudes from the feeding point 11, and the plane of the asymmetric curved part 3 (i.e., the top surface and / or the bottom surface of the asymmetric curved part 3) is prevented from being hidden in the feeding point 11 and unable to be ground, so that the grinding wheel 2 can fully grind the plane of the asymmetric curved part 3 (i.e., the top surface and / or the bottom surface of the asymmetric curved part 3).

[0026] Preferably, both sides of the middle of the feeding point 11 extend outward to form a groove 12, and the groove 12 can facilitate the removal of the asymmetric bending part 3. When the asymmetric bending part 3 is taken from the feeding point 11, the groove 12 provides space for storing fingers.

[0027] Preferably, the feed tray 1 is also provided with a plurality of drain ports 13, and the drain ports 13 are located on the inner side of the feed point 11. A large amount of grinding liquid will be sprayed for cooling during the grinding process, and the grinding liquid and the foam generated by it can smoothly flow out of the feed tray 1 through the drain ports 13, without having to pass through the outer edge of the feed tray 1 as in the original feed tray structure to flow away, and will not accumulate around the feed point 11, thereby not affecting the operator's line of sight and work efficiency. Placing the drain ports 13 on the inner side of the feed point 11 can drain the grinding liquid as quickly as possible, and avoid passing through the feed point as much as possible, and will not be retained around the point, thereby minimizing the interference of the grinding liquid or foam with the operator's line of sight, making drainage more direct and efficient.

[0028] Preferably, the plurality of drain ports 13 are arranged in a circular array. The drain port 13 structure arranged in a circular array can achieve more uniform liquid distribution, avoid excessive liquid accumulation on one side, and affect normal discharge, help ensure that the flow and discharge of the grinding liquid on the feeding plate are uniform, avoid excessive liquid accumulation on one side, thereby improving drainage efficiency and equipment stability.

[0029] The number of the drainage ports 13 is 4 to 8. In this embodiment, the number of the drainage ports 13 can be flexibly selected according to drainage requirements, and can be adjusted and configured according to specific processing requirements.

[0030] See also Figure 1 , the number of feeding points 11 is 6 to 10. In the present embodiment, the number of feeding points 11 is 9, and the number of feeding points 11 can be determined according to the size of the feeding tray 1 and the asymmetric bending part 3. In the feeding tray 1 of the same size, the smaller the size of the asymmetric bending part, the more feeding points 11 can be set, and conversely, the larger the size of the asymmetric bending part, the fewer the number of feeding points 11 can be set; for a certain asymmetric bending part, the feeding tray 1 is designed, the larger the size of the feeding tray 1, the more feeding points 11 can be set, and conversely, the smaller the size of the feeding tray 1, the fewer the number of feeding points 11 can be set.

[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A grinding structure for an asymmetric curved part, characterized in that: The invention comprises a feeding disc (1) and a grinding wheel (2) located on one side of the feeding disc (1); a plurality of feeding points (11) are arranged in an annular array on the feeding disc (1); the shape of the feeding points (11) is adapted to the shape of the asymmetric bending part (3); both ends of the plurality of feeding points (11) are located on a virtual circle; the virtual circle is concentric with the feeding disc (1); the feeding disc (1) and the grinding wheel (2) partially overlap; when the feeding disc (1) rotates, the feeding points (11) pass through the overlapping area of ​​the feeding disc (1) and the grinding wheel (2).

2. The grinding structure of an asymmetric curved part according to claim 1, characterized in that: The corner of the feeding point (11) farthest from the center of the feeding disk (1) is the farthest corner (111), and the farthest corners (111) of the plurality of feeding points (11) are all located on another virtual circle, and the other virtual circle is cocentric with the feeding disk (1).

3. The grinding structure of an asymmetric curved part according to claim 1, characterized in that: Two grinding wheels (2) are provided, and the two grinding wheels (2) are arranged up and down, and the feeding tray (1) extends between the two grinding wheels (2).

4. The grinding structure of an asymmetric curved part according to claim 1, characterized in that: The height of the feeding point (11) is smaller than the height of the asymmetric bending part (3).

5. The grinding structure of an asymmetric curved part according to claim 1, characterized in that: Both sides of the middle of the feeding point (11) extend outwards to form grooves (12) for conveniently taking out the asymmetric bent piece (3).

6. The grinding structure of an asymmetric curved part according to claim 1, characterized in that: The feeding tray (1) is also provided with a plurality of drainage openings (13), and the drainage openings (13) are located on the inner side of the feeding points (11).

7. The grinding structure of an asymmetric curved part according to claim 6, characterized in that: The plurality of drainage openings (13) are arranged in a ring array.

8. The grinding structure of an asymmetric curved part according to claim 6, characterized in that: The number of the drainage ports (13) is 4 to 8.

9. The grinding structure of an asymmetric curved part according to any one of claims 1 to 8, characterized in that: The number of the feeding points (11) is 6 to 10.

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