Chamfering grinding tool and chamfering device

Abstract

The utility model relates to the technical field of optical part machining, and provides a chamfering grinding tool and a chamfering device, the chamfering grinding tool is used for chamfering optical parts, the chamfering grinding tool comprises a grinding disc body, and a grinding inner cavity with a grinding opening is formed in the grinding disc body; the light angle polishing layer is arranged on the inner wall of the polishing inner cavity; the detachable part is arranged on the side, away from the grinding opening, of the grinding disc body, and the grinding disc body is detachably connected to a rotating piece of the chamfering device through the detachable part; wherein the light angle grinding layer is used for abutting against the optical part located in the grinding opening, and the grinding disc body is driven by the rotating part to rotate so as to drive the light angle grinding layer to rotate. The problem that in the prior art, a grinding wheel disc is adopted for chamfering machining, and the requirement that a chamfer for machining an optical part is a bright angle cannot be met is solved.

Description

Technical Field

[0001] This application relates to the field of optical component processing technology, and more specifically, to a chamfering tool and a chamfering device. Background Technology

[0002] Chamfering is a machining method that shapes the edges of a part into a beveled surface. Its main purpose is to remove burrs generated during machining, facilitating assembly. Chamfering is usually performed on the ends of parts, with common angles including 45°, 30°, or 60°, or rounded angles. In the field of optical cold processing, the chamfered surface is typically a frosted finish.

[0003] Existing chamfering equipment typically produces chamfers by directly milling optical components with a grinding wheel. For example, patent CN217255175U discloses a chamfering machine for finely adjusting the angle of optical glass. This chamfering machine is equipped with a grinding tool for chamfering optical glass. A moving mechanism allows a slider to slide left and right within a groove, adjusting the distance between the grinding tool and the rotating shaft, thus facilitating changes to the radius of the chamfered corner according to processing requirements. However, the grinding tool still uses a standard grinding wheel, and the chamfer produced on the optical component is a frosted chamfer.

[0004] However, some optical components require bright chamfers. A bright chamfer means that the chamfered surface of the optical component is a smooth surface without any pinholes. Therefore, the chamfered surface of this type of optical component is a smooth surface, not a matte surface. Consequently, the grinding wheels used in existing chamfering machines cannot meet the requirement of bright chamfers in optical component processing.

[0005] Therefore, existing technologies still need to be improved and developed. Utility Model Content

[0006] The purpose of this application is to provide a chamfering abrasive and a chamfering device, which solves the problem that the chamfering of optical parts using grinding wheels in the prior art cannot meet the requirement of bright corners.

[0007] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0008] On the one hand, this application provides a chamfering tool for chamfering optical components. The chamfering tool includes: a grinding disc body, and a grinding cavity with a grinding opening is provided in the grinding disc body.

[0009] A fine-angle polishing layer is applied to the inner wall of the polishing cavity.

[0010] The detachable part is located on the side of the grinding disc body away from the grinding opening. The grinding disc body is detachably connected to the rotating part of the chamfering device through the detachable part.

[0011] The light angle polishing layer is used to abut against the optical component located in the polishing opening. The polishing disc body is rotated by the drive of the rotating component to drive the light angle polishing layer to rotate.

[0012] In one optional embodiment, a clearance opening is provided on the light angle polishing layer, with the clearance opening closed on the side facing the center of the light angle polishing layer and open on the side away from the center of the light angle polishing layer.

[0013] In an optional embodiment, the distance between the two side walls of the vent gradually decreases in the direction that gradually approaches the center of the light angle polishing layer.

[0014] In an optional embodiment, the light angle polishing layer includes a polyurethane material layer bonded to the inner wall of the polishing cavity.

[0015] In an optional embodiment, the detachable part includes a threaded post disposed on the side of the grinding disc body away from the grinding opening. The threaded post is directly screwed onto the rotating part, or the threaded post is connected to the rotating part by a connecting fixture.

[0016] In an optional embodiment, when the threaded post is connected to the rotating member by a connecting fixture, the connecting fixture includes:

[0017] A connecting column is provided, with an internal threaded hole at one end, which is screwed into the threaded column.

[0018] Shoulder: The shoulder is located at the end of the connecting column away from the internal threaded hole. The shoulder is used to connect to the rotating part.

[0019] In an optional embodiment, the detachable part includes: a positioning platform, with a positioning step formed between the positioning platform and the bottom surface of the grinding disc body, the positioning step being used to connect a three-jaw chuck and be mounted on the rotating part.

[0020] On the other hand, this application also proposes a chamfering device, including: a support platform, on which a rotating component is rotatably disposed;

[0021] The chamfering tool described above is mounted on the rotating part;

[0022] The clamping bracket has a hinged end and a pressing end, and is hinged to the support platform through the hinged end so that the pressing end can be flipped to press down on the optical component located on the grinding disc body.

[0023] In an optional embodiment, the clamping bracket includes: a triangular bracket, with a pressing end disposed at the apex corner of the triangular bracket and a hinged end located at the bottom edge of the triangular bracket;

[0024] The hinged end includes a crossbar, the two ends of which are rotatably connected to the hinged seats on the support platform.

[0025] The pressing end includes: a first support rod, which is adjustablely mounted on a triangular bracket;

[0026] The second pressure rod is perpendicular to the first support rod and is adjustablely mounted on the first support rod. The second pressure rod is used to press down on the optical component.

[0027] In an optional embodiment, a protective cover is provided on the support platform, the protective cover enclosing an accommodating space, and the rotating component is rotatably disposed in the accommodating space.

[0028] The beneficial effects of the chamfering tool and chamfering device provided in this application are at least as follows: by setting a smooth chamfering layer in the grinding cavity of the grinding disc body, and connecting the grinding disc body to the rotating part of the chamfering device through a detachable part, when chamfering an optical component, the optical component is placed in the grinding opening so that the edge of the optical component abuts against the smooth chamfering layer. The chamfering device is driven to rotate the rotating part, thereby causing the grinding disc body to rotate synchronously. During the rotation of the grinding disc body, the smooth chamfering layer in the grinding cavity continuously grinds the edge of the optical component, thereby processing the edge of the optical component into a smooth chamfer, completing the chamfering of the optical component. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of a chamfering tool provided in an embodiment of this application;

[0031] Figure 2 An exploded view of a chamfering tool provided in an embodiment of this application;

[0032] Figure 3 A cross-sectional view of a chamfering tool connected to a rotating component is provided in an embodiment of this application;

[0033] Figure 4 A cross-sectional view of a chamfering tool connected to a connecting fixture is provided in an embodiment of this application;

[0034] Figure 5 This application provides a schematic diagram of a chamfering tool connected to a chuck in an embodiment;

[0035] Figure 6 This application provides a schematic diagram of the structure of a chamfering device during chamfering.

[0036] The following are the labeling elements in the figure:

[0037] 10. Optical component; 100. Chamfering tool; 110. Grinding disc body; 111. Grinding cavity; 120. Grinding layer; 121. Clearance opening; 122. Grinding area; 130. Detachable part; 131. Threaded column; 132. Positioning table; 200. Connecting fixture; 210. Connecting column; 220. Shoulder; 300. Chuck; 400. Support table; 410. Rotating component; 420. Protective cover; 430. Hinge seat; 500. Pressing bracket; 510. Triangular bracket; 520. Hinge end; 521. Crossbar; 530. Pressing end; 531. First support rod; 532. Second pressure rod; 533. Press head. Detailed Implementation

[0038] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0039] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it may be directly or indirectly located on that other component. When a component is referred to as "connected to" another component, it may be directly or indirectly connected to that other component. The terms "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate orientations or positions based on the accompanying drawings, and are for ease of description only, and should not be construed as limiting the technical solution. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. "A plurality" means two or more, unless otherwise explicitly defined.

[0040] Example 1

[0041] Please see Figure 1 , Figure 3 This embodiment proposes a chamfering tool 100 for chamfering optical components 10 to be processed. Please refer to [link / reference]. Figure 1 , Figure 2 , Figure 3As shown, the chamfering tool 100 mainly includes: a grinding disc body 110, a chamfering layer 120, and a detachable part 130. For ease of structural description, the chamfering tool 100 is vertically mounted on the rotating part 410 of the chamfering device as an example. The grinding disc body 110 has a grinding cavity 111 with a grinding opening facing upwards. The optical component 10 to be processed is placed in the grinding cavity 111 through the grinding opening. The chamfering layer 120 is disposed on the inner wall of the grinding cavity 111. The chamfering layer 120 is mainly used to grind the edges of the optical component 10 to form a chamfer. The grinding of the chamfering layer 120 produces a smooth chamfer surface, meeting the quality requirements of the chamfered edge. Based on the chamfering dimensions of the optical component 10, the grinding cavity 111 of the grinding disc body 110 is either a hemispherical or conical cavity, and the corresponding bevel grinding layer 120 attached to the inner wall forms a hemispherical or conical shape. For example, when the chamfer of the optical component 10 is required to be a rounded corner, the grinding cavity 111 is designed as a hemispherical cavity; when the chamfer of the optical component 10 is required to be a beveled angle, the grinding cavity 111 is designed as a conical cavity. Furthermore, the dimensions of the grinding cavity 111 vary depending on the chamfer size. Therefore, based on the actual requirements of the optical component 10, multiple grinding disc bodies 110 can be designed, each with a different grinding cavity 111 size. When processing corresponding components, the corresponding grinding disc body 110 is replaced. A detachable part 130 is provided on the side of the grinding disc body 110 opposite to the grinding opening. The grinding disc body 110 is detachably connected to the rotating member 410 of the chamfering device via the detachable part 130. Specifically, the detachable part 130 is located at the bottom of the grinding disc body 110, allowing the grinding disc body 110 to be connected to the rotating member 410 of the chamfering device via the detachable part 130. Driven by the rotating member 410, the entire chamfering die 100 rotates. The polishing layer 120 abuts against the optical element 10 located at the grinding opening. The grinding disc body 110 rotates under the drive of the rotating member 410, thereby rotating the polishing layer 120 and processing a bright corner at the edge of the optical element 10.

[0042] Please see Figure 3 This embodiment provides a chamfering tool 100, which provides a smooth chamfering layer 120 in the grinding cavity 111 of the grinding disc body 110, and connects the grinding disc body 110 to the rotating component 410 of the chamfering device via a detachable part 130. When chamfering the optical component 10, the optical component 10 is placed in the grinding opening so that the edge of the optical component 10 abuts against the smooth chamfering layer 120. The chamfering device is driven to rotate the rotating component 410, causing the grinding disc body 110 to rotate synchronously. During the rotation of the grinding disc body 110, the smooth chamfering layer 120 in the grinding cavity 111 continuously grinds the edge of the optical component 10, thereby creating a smooth chamfer on the edge of the optical component 10, completing the chamfering of the optical component 10.

[0043] Please see Figure 1 , Figure 2 Furthermore, in this embodiment, the polishing layer 120 is provided with a clearance opening 121. The clearance opening 121 is closed on the side facing the center of the polishing layer 120 and open on the side away from the center of the polishing layer 120. In the specific structure, the polishing layer 120 is a polishing material sheet. When the sheet-shaped polishing layer 120 is attached to the arc-shaped polishing cavity 111, it is easily squeezed and wrinkled. The clearance opening 121 is provided on the sheet-shaped polishing layer 120. The clearance opening 121 divides the polishing layer 120 into different polishing areas 122. When each polishing area 122 is attached to the polishing cavity 111 and deforms, it will deform towards the clearance opening 121. The clearance opening 121 provides deformation space for each polishing area 122, thereby avoiding the problem of arching and wrinkling caused by the compression of each polishing area 122.

[0044] Please see Figure 1 , Figure 2 Furthermore, in this embodiment, the distance between the two side walls of the clearance opening 121 gradually decreases as it approaches the center of the polishing layer 120. Specifically, the clearance opening 121 gradually decreases inward and is finally sealed near the center of the polishing layer 120. The clearance opening 121 gradually increases inward, thus forming a petal shape with multiple polishing areas 122. This polishing layer 120 better matches the arc-shaped or conical polishing cavity 111 and can be more smoothly attached to the inner wall of the polishing cavity 111, basically avoiding the generation of wrinkles or voids, and achieving complete attachment of the bottom surface of the polishing layer 120 to the inner wall of the polishing cavity 111.

[0045] Please see Figure 1 , Figure 2 Furthermore, the polishing layer 120 in this embodiment includes a polyurethane material layer, which is bonded to the inner wall of the polishing cavity 111. During the polishing process, the polyurethane material layer can produce a smooth surface that meets the requirements, thereby forming a bright corner at the edge of the optical component 10.

[0046] Please see Figure 1 , Figure 3 Furthermore, the detachable part 130 of this embodiment includes a threaded post 131, which is disposed on the side of the grinding disc body 110 opposite to the grinding opening. The threaded post 131 is directly screwed onto the rotating component 410, or the threaded post 131 is connected to the rotating component 410 through a connecting fixture 200. The threaded post 131 has external threads. By fixing the threaded post 131 to the bottom of the grinding disc body 110, the chamfering device can be screwed and fixed to the rotating component 410 of the chamfering device, facilitating disassembly. Figure 3As shown, if the rotating part 410 has an internal threaded hole, the threaded post 131 can be directly connected to the rotating part 410. For example... Figure 4 As shown, if other types of joints are used on the rotating part 410, the chamfering mold 100 and the rotating part 410 can be detachably connected by connecting the threaded post 131 to the connecting fixture 200 and then connecting the connecting fixture 200 to the rotating part 410.

[0047] Please see Figure 4 Furthermore, in this embodiment, when the threaded post 131 is connected to the rotating component via the connecting fixture 200, the connecting fixture 200 includes a connecting post 210 and a shoulder 220. One end of the connecting post 210 has an internal threaded hole, which is screwed onto the threaded post 131. The shoulder 220 is located at the end of the connecting post 210 facing away from the internal threaded hole and is used to connect to the rotating component 410. In the specific structure, the connecting fixture 200 is connected to the lower end of the chamfering mold 100 by screwing the internal thread on the connecting column 210 to the threaded column 131. The lower end is then connected and positioned to the rotating component 410 via the shoulder 220. Thus, the connecting fixture 200 can be used to fix the chamfering mold 100 onto the rotating component 410. However, when the chamfering mold 100 needs to be connected to the rotating component 410 of different chamfering devices, the chamfering mold 100 cannot be directly adapted to all chamfering devices due to their different specifications. By using the connecting fixture 200, whose internal thread hole matches the threaded column 131 of the chamfering mold 100, only the structure of the other end or the size of the shoulder 220 needs to be changed to adapt the chamfering mold 100 to various styles of chamfering devices, improving the versatility of the chamfering mold 100.

[0048] Please see Figure 1 , Figure 2 , Figure 5 Furthermore, the detachable part 130 of this embodiment includes a positioning platform 132, which forms a positioning platform 132 step between the positioning platform 132 and the bottom surface of the grinding disc body 110. The positioning platform 132 step is used to connect the chuck 300 and is mounted on the rotating member 410. In a specific structure, a chuck 300 (e.g., a tripod chuck) can be provided on the rotating member 410. The positioning platform 132 is clamped by the chuck 300, so that the positioning platform 132 step abuts against the upper surface of the chuck's jaws, thereby enabling the chamfering grinding tool 100 to be accurately positioned and mounted on the rotating member 410 of the chamfering device.

[0049] Therefore, the detachable part 130 can take three forms: the first is to only provide the threaded post 131; the second is to only provide the positioning table 132; and the third is to provide both the positioning table 132 and the threaded post 131. When the third structure is adopted, the positioning table 132 is located at the bottom of the grinding disc body 110, and the threaded post 131 is located at the bottom of the positioning table 132. The outer diameter of the positioning table is larger than the outer diameter of the threaded post 131. In this way, the chamfering grinding tool 100 can be directly connected to the rotating part 410 by screwing, or it can be fixed to the rotating part 410 by the positioning table 132 being clamped by the chuck. This makes it more versatile and improves the practicality of the chamfering grinding tool 100.

[0050] Example 2

[0051] Please see Figure 3 , Figure 6 This embodiment proposes a chamfering device, including: a support platform 400, a chamfering die 100 as described above, and a clamping bracket 500. The upper surface of the support platform 400 can be a horizontal platform. A rotating member 410 is rotatably mounted on the support platform 400. The rotating member 410 can be a spindle, which is driven to rotate by a power device of the chamfering device. The chamfering die 100 is mounted on the rotating member 410 via the aforementioned detachable part 130. The clamping bracket 500 has a hinge end 520 and a pressing end 530, and is hinged to the support platform 400 via the hinge end 520, so that the pressing end 530 can be flipped to press down on the optical element 10 located on the grinding disc body 110. In the specific process, when the optical component 10 is installed on the grinding disc body 110, the clamping bracket 500 is first flipped upward and lifted so that the pressing end 530 leaves the grinding disc body 110. Then the optical component 10 can be placed in the grinding cavity 111 of the grinding disc body 110. Then the clamping bracket 500 is flipped downward and pressed against the optical component 10. After the pressing end 530 above the optical component 10 presses the optical component 10, the rotating component 410 below drives the chamfering mold 100 to rotate. The relative rotation of the chamfering mold 100 and the optical component 10 causes the light angle grinding layer 120 to chamfer a bright corner on the surface of the optical component 10.

[0052] Please see Figure 3 , Figure 6Furthermore, the pressing bracket 500 in this embodiment specifically includes a triangular bracket 510. The triangular bracket 510 has a stable structure and has a bottom edge and a top corner. The pressing end 530 is located on the top corner of the triangular bracket 510, and the hinge end 520 is located on the bottom edge of the triangular bracket 510. Therefore, the triangular bracket 510 can be flipped through the hinge end 520 on the bottom edge, so that the pressing end 530 on the top corner can be raised and lowered. The hinge end 520 in this embodiment specifically includes a crossbar 521. The two ends of the crossbar 521 are respectively rotatably connected to the hinge seats 430 on the support platform 400. The hinge seats 430 are located on both sides of the support platform 400 in the left and right directions, and the left and right ends of the crossbar 521 are rotatably embedded in the hinge seats 430 to achieve hinge. The pressing end 530 in this embodiment specifically includes a first support rod 531 and a second pressing rod 532. The first support rod 531 is adjustablely mounted on the triangular bracket 510. The second pressing rod 532 is perpendicular to the first support rod 531 and is adjustablely mounted on the first support rod 531. The second pressing rod 532 is used to abut against and press down on the optical component 10. In the specific structure, the first support rod 531 is horizontally arranged, one end of which can extend and retract at the top of the triangular bracket 510, and the other end extends toward the rotating component 410. By adjusting the extension and retraction of the first support rod 531 in the horizontal direction, the second pressing rod 532 connected to it can be adjusted to a position facing the grinding disc body 110. The second pressing rod 532 is connected to the first support rod 531 in the vertical direction, and the position of the second pressing rod 532 in the vertical direction is adjustable. The lower end of the second pressing rod 532 is a pressing head 533, which abuts against the upper surface of the optical component 10 to press down on the optical component 10. The adjustable second pressure rod 532 can be positioned according to the thickness of the optical component 10. During the chamfering process, the pressure head 533 at the lower end of the second pressure rod 532 contacts the pressing surface (upper surface) of the optical component 10. Therefore, the lower surface of the pressure head 533 can be adapted to the shape of the pressed surface of the optical component 10 to make the pressure head 533 fit the optical component 10. It should also be noted that the pressure head 533 and the second pressure rod 532 can open a negative pressure channel. Under the action of negative pressure, the pressure head 533 can hold the optical component 10 below, so that the optical component 10 will not rotate with the grinding disc 110 during the rotation of the grinding disc 110, thus improving the grinding effect.

[0053] Please see Figure 6 Furthermore, in this embodiment, a protective cover 420 is provided on the support platform 400, forming an accommodating space, in which the rotating member 410 is rotatably disposed. The protective cover 420 can be recessed and embedded into the horizontal platform surface, and the rotating member 410 passes through the protective cover 420 and is vertically disposed at the central axis position for rotation. The protective cover 420 can collect the dust ground off by the chamfering abrasive 100 during the grinding process.

[0054] In summary, the chamfering tool and chamfering device proposed in this application can produce a smooth chamfer (bright corner) on optical components. Unlike conventional chamfers where the surface is frosted, the surface of the bright corner is where the aperture can be seen, thereby improving product precision and meeting the processing quality requirements of optical components.

[0055] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A chamfering tool for chamfering optical components, characterized in that, The chamfering tool includes: a grinding disc body, wherein the grinding disc body is provided with a grinding cavity with a grinding opening; A light angle polishing layer is disposed on the inner wall of the polishing cavity; A detachable part is provided on the side of the grinding disc body away from the grinding opening, and the grinding disc body is detachably connected to the rotating part of the chamfering device through the detachable part; The optical angle polishing layer is used to abut against the optical component located in the polishing opening. The grinding disc body is rotated by the drive of the rotating component to drive the optical angle polishing layer to rotate.

2. The chamfering tool as described in claim 1, characterized in that, An opening is provided on the polished angle layer. The opening is closed on the side facing the center of the polished angle layer and open on the side away from the center of the polished angle layer.

3. The chamfering tool as described in claim 2, characterized in that, The distance between the two side walls of the air vent gradually decreases as it approaches the center of the light angle polishing layer.

4. The chamfering tool as described in claim 1, characterized in that, The light angle polishing layer includes a polyurethane material layer, which is bonded to the inner wall of the polishing cavity.

5. The chamfering tool as described in claim 4, characterized in that, The detachable part includes a threaded post, which is disposed on the side of the grinding disc body away from the grinding opening. The threaded post is directly screwed onto the rotating part, or the threaded post is connected to the rotating part through a connecting fixture.

6. The chamfering tool as described in claim 5, characterized in that, When the threaded post is connected to the rotating component via a connecting fixture, the connecting fixture includes: A connecting column is provided, one end of which has an internal threaded hole, and the internal threaded hole is screwed into the threaded column. A shoulder is provided at one end of the connecting column opposite to the internal threaded hole, and the shoulder is used to connect to the rotating component.

7. The chamfering tool as described in claim 1 or 5, characterized in that, The detachable part includes: a positioning platform, a positioning step is formed between the positioning platform and the bottom surface of the grinding disc body, and the positioning step is used to connect the chuck and is installed on the rotating part.

8. A chamfering device, characterized in that, include: A support platform, on which a rotating component is rotatably mounted; The chamfering tool as described in any one of claims 1-7, wherein the chamfering tool is disposed on the rotating member; A clamping bracket having a hinged end and a pressing end, and hinged to the support platform via the hinged end, so that the pressing end can be flipped to press down on the optical element located on the grinding disc body.

9. The chamfering device as described in claim 8, characterized in that, The clamping bracket includes: a triangular bracket, the pressing end being disposed at the apex corner of the triangular bracket, and the hinge end being located on the bottom edge of the triangular bracket; The hinge end includes a crossbar, the two ends of which are rotatably connected to the hinge seats on the support platform. The pressing end includes: a first support rod, which is adjustablely mounted on the triangular bracket; The second pressure rod is perpendicular to the first support rod and is adjustablely mounted on the first support rod. The second pressure rod is used to abut against and press down on the optical component.

10. The chamfering device as described in any one of claims 8-9, characterized in that, A protective cover is provided on the support platform, and the protective cover forms an accommodating space. The rotating component is rotatably disposed in the accommodating space.

Images