Edge grinding and chamfering tool

Abstract

The application relates to the field of optical processing clamping tools, and provides an edge grinding and chamfering tool, which comprises a base, a positioning assembly arranged on the base and a grinding roller; the base is provided with a groove with an open upper end face; the grinding roller is arranged in the groove; the positioning assembly is arranged above the groove; the positioning assembly is provided with a placing part for placing a workpiece; the bottom end of the placing part is in communication with the groove; when the workpiece is placed on the placing part, the lower end part of the workpiece passes through the placing part and is in contact with the grinding roller for grinding. The tool has the effects of improving clamping efficiency and avoiding damage to the workpiece in clamping operation, and the parallelism error of the processed chamfer is stable.

Description

Technical Field

[0001] This application relates to the field of optical processing fixtures and tooling, specifically a grinding and chamfering fixture. Background Technology

[0002] In the process of workpiece preparation, workpieces generally need to be chamfer and grind edges. In addition to using CNC machine tools for processing, custom chamfering equipment can also be used for chamfering and grinding of some smaller lenses. This has the advantage of not requiring frequent mechanical clamping, thus avoiding damage to the lenses during mechanical clamping. For example, CN219967580U discloses a fixing block, a lens fixing fixture, and a lens chamfering / edge measuring system. The fixing block has a bottom plane, a first vertical plane, a second vertical plane, a first top surface, and a second top plane. The first and second vertical planes are connected to the bottom plane; the first top surface is connected to the first vertical plane; the second top plane is connected to the second vertical plane; the second top plane and the first top surface are spaced apart, and the second top plane is higher than the first top surface. The fixing block is used to: when used in pairs, the two fixing blocks can clamp a cylindrical-convex chamfered lens with a diameter greater than the height of the first vertical plane but less than the height of the second vertical plane relative to each other; and when used individually, the second top plane and the first top surface are spaced apart in the left-right direction to support a side-edge-chamfered lens so that the chamfer of the side-edge-chamfered lens protrudes and is parallel to the second top plane. The technical problem it solves is to improve the operational convenience of the lens fixing structure, thereby helping to reduce labor costs. Utility Model Content

[0003] To solve the above-mentioned technical problems, this application provides a grinding and chamfering fixture. This fixture has the advantages of improving clamping efficiency and avoiding damage to the workpiece during clamping operations, while the parallelism error of the chamfer produced is stable.

[0004] The technical solution of this application is:

[0005] A chamfering and edge-grinding fixture includes a base, a positioning component mounted on the base, and a grinding roller; the base has a groove with an open upper surface; the grinding roller is arranged in the groove; the positioning component is arranged above the groove; the positioning component has a placement part for placing a workpiece; the bottom end of the placement part communicates with the groove.

[0006] When the workpiece is placed in the placement section, the lower part of the workpiece passes through the placement section and contacts the grinding roller for grinding.

[0007] In the above-mentioned edge grinding and chamfering fixture, the positioning component includes a mounting base and a positioning base; the mounting base is disposed on the base; the mounting base has an open opening communicating with the groove;

[0008] The positioning seat is disposed on the mounting base and includes a first positioning block and a second positioning block arranged opposite to each other; there is a gap between the first positioning block and the second positioning block; the mounting base, the first positioning block and the second positioning block together constitute the placement part;

[0009] When the workpiece is placed in the placement section, the lower part of the workpiece passes through the gap and the opening in sequence and contacts the grinding roller for grinding.

[0010] In the above-mentioned edge grinding and chamfering fixture, the first positioning block is provided with a first inclined surface that gradually slopes from top to bottom, and the second positioning block is provided with a second inclined surface that gradually slopes from top to bottom; the first inclined surface and the second inclined surface are arranged opposite to each other; the mounting base, the first positioning block and the second positioning block constitute the V-shaped placement part;

[0011] When the workpiece is placed in the placement section, both sides of the workpiece contact the first inclined surface and the second inclined surface, and the lower part of the workpiece passes through the gap and the opening in sequence to contact and grind the grinding roller.

[0012] In the above-mentioned edge grinding and chamfering fixture, the first positioning block is detachably mounted on the mounting base; the second positioning block is slidably connected to the mounting base.

[0013] In the above-mentioned edge grinding and chamfering fixture, the positioning component further includes an adjusting bolt and a first connecting screw; the adjusting bolt is threadedly connected to the mounting base; one end of the adjusting bolt is threadedly connected to the first connecting screw; the first connecting screw is threadedly connected to the second positioning block.

[0014] In the above-mentioned edge grinding and chamfering fixture, the positioning component further includes at least one guide post and a second connecting screw; the guide post is slidably connected to the mounting base; one end of the guide post is threadedly connected to the second connecting screw; the second connecting screw is connected to the second positioning block.

[0015] In the above-mentioned edge grinding and chamfering fixture, the positioning component further includes a locking bolt; the locking bolt is threadedly connected to the mounting base, and one end of the locking bolt is used to contact and press against the guide post.

[0016] In the above-mentioned edge grinding and chamfering fixture, the positioning component further includes a spring; the spring is sleeved on the guide post; the two ends of the spring are respectively connected to the mounting base and the second positioning block.

[0017] In the above-mentioned edge grinding and chamfering fixture, locking blocks are provided on both sides of the mounting base; extensions are provided on both sides of the second positioning block; the extensions on both sides are slidably connected to the locking blocks on both sides; a tightening screw is provided on the locking block; one end of the tightening screw passes through the locking block and abuts against the extension.

[0018] In the above-mentioned edge grinding and chamfering fixture, the length direction of the grinding roller is the same as the moving direction of the second positioning block.

[0019] One of the above-mentioned technical solutions in this application has at least one of the following advantages or beneficial effects:

[0020] The edge grinding and chamfering fixture of this application positions the workpiece by placing the placement part on the positioning component. This method eliminates the need to clamp the workpiece with external force, which not only improves clamping efficiency but also avoids damage to the workpiece caused by external force clamping during operation. At the same time, since the placement part is connected to the groove, the part of the workpiece that needs to be ground (the lower part) can pass through the placement part and contact the grinding roller for grinding, thereby easily achieving edge grinding and chamfering. Attached image description:

[0021] Figure 1 This is a three-dimensional structural diagram of the workpiece in Embodiment 1 of this application;

[0022] Figure 2 This is an embodiment 1 of the present application. Figure 1 A magnified view of a portion of the image;

[0023] Figure 3 This is a top view of Embodiment 1 of this application;

[0024] Figure 4 This is a side view of Embodiment 1 of this application;

[0025] Figure 5 This is an embodiment 1 of the present application. Figure 4 AA section view;

[0026] Figure 6 This is an embodiment 1 of the present application. Figure 4 BB section view;

[0027] Figure 7 This is a three-dimensional structural diagram of the mounting base of Embodiment 1 of this application.

[0028] Explanation of reference numerals in the attached figures:

[0029] Base 1; Positioning assembly 2; Mounting seat 21; Positioning seat 22; First positioning block 221; First inclined surface 2211; Second positioning block 222; Second inclined surface 2221; Extension 2222; Locking block 223; Adjusting bolt 23; First connecting screw 24; Washer 25; Guide post 26; Second connecting screw 27; Locking bolt 28; Spring 29; Grinding roller 3; Groove 1a; Placement part 2a; Opening 3a; Gap 4a. Detailed Implementation

[0030] The technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0031] Example 1

[0032] refer to Figures 1-7 A chamfering and edge-grinding fixture includes a base 1, a positioning component 2 disposed on the base 1, and a grinding roller 3; the base 1 is provided with a groove 1a with an open upper surface; the grinding roller 3 is disposed in the groove 1a; the positioning component 2 is disposed above the groove 1a; the positioning component 2 is provided with a placement part 2a for placing a workpiece A; the bottom end of the placement part 2a is connected to the groove 1a;

[0033] Specifically, the positioning component 2 includes a mounting base 21 and a positioning base 22; the mounting base 21 is disposed on the base 1; the mounting base 21 is provided with an open opening 3a communicating with the groove 1a;

[0034] More specifically, the positioning seat 22 is disposed on the mounting seat 21 and includes a first positioning block 221 and a second positioning block 222 arranged opposite to each other; there is a gap 4a between the first positioning block 221 and the second positioning block 222; the gap 4a communicates with the groove 1a.

[0035] In a preferred embodiment, the first positioning block 221 is provided with a first inclined surface 2211 that gradually slopes downwards, and the second positioning block 222 is provided with a second inclined surface 2221 that gradually slopes downwards; the first inclined surface 2211 and the second inclined surface 2221 are arranged opposite to each other; the mounting base 21, the first positioning block 221 and the second positioning block 222 constitute the V-shaped placement portion 2a;

[0036] Under the above design, taking a cuboid workpiece A as an example, when workpiece A is placed in the placement part 2a, both sides of workpiece A are in contact with the first inclined surface 2211 and the second inclined surface 2221 respectively. The lower part of workpiece A (one edge of the cuboid) passes through the gap 4a and the opening 3a in sequence and contacts the grinding roller 3 for grinding, thereby completing the chamfering.

[0037] It should be noted that in other embodiments, for example, the first positioning block 221 and the second positioning block 222 can also be configured as an arc-shaped placement part 2a to accommodate and position the columnar workpiece A.

[0038] In a preferred embodiment, the first positioning block 221 is detachably mounted on the mounting base 21; the second positioning block 222 is slidably connected to the mounting base 21. In this preferred embodiment, the gap 4a between the first positioning block 221 and the second positioning block 222 is adjustable, thereby increasing or decreasing the portion through which the workpiece A can pass, thus achieving the purpose of adjusting the chamfer size.

[0039] In the preferred embodiment described above, the positioning assembly 2 further includes an adjusting bolt 23 and a first connecting screw 24; the adjusting bolt 23 is threadedly connected to the mounting base 21; one end of the adjusting bolt 23 is threadedly connected to the first connecting screw 24; the first connecting screw 24 is threadedly connected to the second positioning block 222. In practical applications, a washer 25 should also be provided on the countersunk end face of the first connecting screw 24.

[0040] It should be noted that, in order to prevent the first connecting screw 24 from directly locking the second positioning block 222 onto the adjusting bolt 23 and causing the adjusting bolt 23 to be unable to rotate, the design length of the first connecting screw 24 needs to be larger, so that after the first connecting screw 24 is tightened into place, its countersunk end face does not contact the washer 25, and there is a certain gap 4a, so that the adjusting bolt 23 can rotate.

[0041] In this embodiment, in order to prevent the second positioning block 222 from wobbling up, down, left, and right and to improve the machining accuracy, the positioning component 2 further includes two guide posts 26 and a second connecting screw 27 respectively disposed on both sides of the adjusting bolt 23; the guide posts 26 are slidably connected to the mounting base 21; one end of the guide post 26 is threadedly connected to the second connecting screw 27; the second connecting screw 27 is connected to the second positioning block 222.

[0042] In the above design, the positioning component 2 further includes a locking bolt 28; the locking bolt 28 is threadedly connected to the mounting base 21, and one end of the locking bolt 28 is used to contact and tighten the guide post 26. It should be noted that in this embodiment, the upper end face of the guide post 26 that contacts the locking bolt 28 has a flat groove, which improves the reliability of locking and prevents deformation of the guide post 26 when the locking bolt 28 contacts it.

[0043] Furthermore, in order to better reduce the up-down and left-right wobbling of the second positioning block 222 and improve the machining accuracy, the positioning component 2 also includes a spring 29; the spring 29 is sleeved on the guide post 26; the two ends of the spring 29 are respectively connected to the mounting base 21 and the second positioning block 222.

[0044] In this embodiment, to further reduce the shaking of the second positioning block 222, locking blocks 223 are provided on both sides of the mounting base 21; extension portions 2222 are provided on both sides of the second positioning block 222; the extension portions 2222 on both sides are slidably connected to the locking blocks 223 on both sides; a tightening screw is provided on the locking block 223; one end of the tightening screw passes through the locking block 223 and abuts against the extension portion 2222.

[0045] When it is necessary to adjust the second positioning block 222, loosen the tightening screw, and then rotate the adjusting bolt 23 to move the second positioning block 222 back and forth, thereby increasing or decreasing the gap 4a, and thus adjusting the size of the chamfer.

[0046] In practical applications, the length direction of the grinding roller 3 is the same as the moving direction of the second positioning block 222. That is, the grinding roller 3 is perpendicular to the axis of the workpiece A. During processing, the operator keeps the workpiece A close to the first positioning block 221 and the second positioning block 222, and then pushes the workpiece A left and right, so that the part of the workpiece A that needs to be chamfered comes into contact with the grinding roller 3 little by little for grinding. It should be noted that the grinding roller 3 can be unpowered or connected to an external drive motor.

[0047] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A tooling for edge grinding and chamfering, characterized in that, The device includes a base, a positioning component mounted on the base, and a grinding roller. The base has a groove with an open upper surface. The grinding roller is arranged in the groove. The positioning component is arranged above the groove. The positioning component has a placement part for placing a workpiece. The bottom end of the placement part communicates with the groove. When the workpiece is placed in the placement section, the lower part of the workpiece passes through the placement section and contacts the grinding roller for grinding.

2. The edge grinding and chamfering fixture according to claim 1, characterized in that, The positioning component includes a mounting base and a positioning base; the mounting base is disposed on the base; the mounting base has an open opening communicating with the groove; The positioning seat is disposed on the mounting base and includes a first positioning block and a second positioning block arranged opposite to each other; there is a gap between the first positioning block and the second positioning block; the mounting base, the first positioning block and the second positioning block together constitute the placement part; When the workpiece is placed in the placement section, the lower part of the workpiece passes through the gap and the opening in sequence and contacts the grinding roller for grinding.

3. The edge grinding and chamfering fixture according to claim 2, characterized in that, The first positioning block has a first inclined surface that gradually slopes downwards, and the second positioning block has a second inclined surface that gradually slopes downwards; the first inclined surface and the second inclined surface are arranged opposite to each other; the mounting base, the first positioning block and the second positioning block form a V-shaped placement portion; When the workpiece is placed in the placement section, both sides of the workpiece contact the first inclined surface and the second inclined surface, and the lower part of the workpiece passes through the gap and the opening in sequence to contact and grind the grinding roller.

4. The edge grinding and chamfering fixture according to claim 2, characterized in that, The first positioning block is detachably mounted on the mounting base; the second positioning block is slidably connected to the mounting base.

5. The edge grinding and chamfering fixture according to claim 4, characterized in that, The positioning assembly further includes an adjusting bolt and a first connecting screw; the adjusting bolt is threadedly connected to the mounting base; one end of the adjusting bolt is threadedly connected to the first connecting screw; the first connecting screw is threadedly connected to the second positioning block.

6. The edge grinding and chamfering fixture according to claim 5, characterized in that, The positioning assembly further includes at least one guide post and a second connecting screw; the guide post is slidably connected to the mounting base; one end of the guide post is threadedly connected to the second connecting screw; the second connecting screw is connected to the second positioning block.

7. The edge grinding and chamfering fixture according to claim 6, characterized in that, The positioning assembly also includes a locking bolt; the locking bolt is threaded to the mounting base, and one end of the locking bolt is used to contact and press against the guide post.

8. The edge grinding and chamfering fixture according to claim 6, characterized in that, The positioning component also includes a spring; the spring is sleeved on the guide post; the two ends of the spring are respectively connected to the mounting base and the second positioning block.

9. The edge grinding and chamfering fixture according to claim 4, characterized in that, Locking blocks are provided on both sides of the mounting base; extensions are provided on both sides of the second positioning block; the extensions on both sides are slidably connected to the locking blocks on both sides; a tightening screw is provided on the locking block; one end of the tightening screw passes through the locking block and abuts against the extension.

10. The edge grinding and chamfering fixture according to claim 4, characterized in that, The length direction of the grinding roller is the same as the moving direction of the second positioning block.

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