Finishing mechanism for rapidly finishing outer edge and double end faces of CBN grinding wheel

Abstract

The utility model relates to a finishing mechanism for quickly finishing the outer edge and the double end faces of a CBN grinding wheel, which comprises a main shaft base provided with an inclined mounting cavity; the trimming spindle is arranged in the mounting cavity, a trimming head is arranged at the output end of the trimming spindle, an annular protrusion is arranged in the middle of the trimming head, a first trimming layer arranged around the outer edge of the annular protrusion is arranged at one end of the annular protrusion, and a second trimming layer arranged around the outer edge of the annular protrusion is arranged at the other end of the annular protrusion. The end, close to the second finishing layer, of the finishing head is provided with a third finishing layer arranged around the finishing head. The dressing main shaft is obliquely arranged through the main shaft base, a certain swing angle is formed between the dressing main shaft and the CBN grinding wheel, the contact face of the dressing head and the CBN grinding wheel is changed into a semicircular arc, the CBN grinding wheel is dressed through the first dressing layer, the second dressing layer and the second dressing layer, the dressing area is increased, and then the dressing efficiency is improved; and the dressing effect is more stable, and the appearance of the dressed position of the CBN grinding wheel is better.

Description

Technical Field

[0001] The present application relates to the technical field of grinding wheel dressing, and particularly to a dressing mechanism for quickly dressing the outer edge and double end faces of a CBN grinding wheel. Background Art

[0002] A CBN grinding wheel refers to a grinding wheel made of CBN abrasive and using metal powder, resin powder, ceramics, and electroplated metal as binders respectively, and is used for grinding, polishing, and lapping.

[0003] During the use of a CBN grinding wheel, it is required that both its outer circle and end face participate in grinding. Therefore, it is necessary to dress the CBN grinding wheel to ensure its machining precision. For example, Figure 6 as shown, in the existing dressing structure, a single-point contact grinding wheel is used to dress the CBN grinding wheel, with low dressing efficiency, which is not conducive to improving the machining efficiency, and the dressing structure has a large interference on the dressing of the CBN grinding wheel. Summary of the Utility Model

[0004] Based on this, it is necessary to provide a dressing mechanism for quickly dressing the outer edge and double end faces of a CBN grinding wheel to overcome the defects in the above background art.

[0005] A dressing mechanism for quickly dressing the outer edge and double end faces of a CBN grinding wheel includes:

[0006] A main shaft base having an inclined installation cavity;

[0007] A dressing main shaft disposed in the installation cavity. A dressing head is provided at the output end of the dressing main shaft. A ring-shaped protrusion is provided in the middle of the dressing head. A first dressing layer is provided at one end of the ring-shaped protrusion around its outer edge, and a second dressing layer is provided at the other end of the ring-shaped protrusion around its outer edge. A third dressing layer is provided around the dressing head near the end of the second dressing layer.

[0008] As a preference of the dressing mechanism for quickly dressing the outer edge and double end faces of the CBN grinding wheel in the present utility model, the main shaft base includes a base and a cover plate. The bottom of the base is connected to the equipment main body, and a first arc-shaped groove inclined towards the CBN grinding wheel end is provided at the top of the base. The bottom of the cover plate is detachably connected to the top of the base, and a second arc-shaped groove matching the first arc-shaped groove is provided at a position corresponding to the first arc-shaped groove. An installation cavity for fixing the dressing main shaft is formed between the first arc-shaped groove and the second arc-shaped groove.

[0009] As a preference of the dressing mechanism for quickly dressing the outer edge and double end faces of the CBN grinding wheel in the present utility model, the inclination angle of the first arc-shaped groove is between 10° and 40°.

[0010] As an optimization of the dressing mechanism for the outer edge and double end faces of the quick dressing CBN grinding wheel in the present utility model, the dressing head is detachably connected to the output end of the dressing main shaft.

[0011] As an optimization of the dressing mechanism for the outer edge and double end faces of the quick dressing CBN grinding wheel in the present utility model, the outer edges of the first dressing layer, the circular ring protrusion and the second dressing layer are interconnected, and are gradually inclined from the end of the first dressing layer towards the side of the dressing head near the second dressing layer end.

[0012] As an optimization of the dressing mechanism for the outer edge and double end faces of the quick dressing CBN grinding wheel in the present utility model, the end of one end of the dressing head and the end of one end of the first circular ring are interconnected, and are gradually inclined from the dressing head end towards the side of the first circular ring near the dressing main shaft end.

[0013] Advantages of the present utility model:

[0014] In the present utility model, the dressing main shaft is disposed obliquely through the main shaft base, so that a certain swing angle is formed between the dressing main shaft and the CBN grinding wheel, and the contact surface between the dressing head and the CBN grinding wheel becomes a semi-circular arc. The CBN grinding wheel is dressed through the first dressing layer, the second dressing layer and the first dressing layer, the dressing area is increased, thereby improving the dressing efficiency, and the dressing effect is more stable, and the shape of the dressed part of the CBN grinding wheel is better. Description of the drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 Schematic diagram of the connection structure between the dressing mechanism and the CBN grinding wheel in the embodiment of the present application;

[0017] Figure 2 Schematic diagram of the structure of the dressing mechanism in the embodiment of the present application;

[0018] Figure 3 Schematic diagram of the structure of the main shaft base in the embodiment of the present application;

[0019] Figure 4 Schematic diagram of the structure of the dressing head in the embodiment of the present application;

[0020] Figure 5 For Figure 4 Cross-sectional structure diagram of the dressing head in

[0021] Figure 6Schematic diagram of the connection structure between the dressing mechanism and the CBN grinding wheel in the prior art;

[0022] Description of the reference numerals:

[0023] 1. Spindle base; 11. Base; 12. Cover plate;

[0024] 2. Dressing spindle;

[0025] 3. Dressing head; 31. Annular protrusion; 32. First dressing layer; 33. Second dressing layer; 34. Third dressing layer. Detailed implementation manners

[0026] In order to make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0027] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present application.

[0028] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0029] In this application, unless otherwise clearly defined and limited, terms such as "installed", "connected", "linked", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] In this application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be 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, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0031] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0032] Embodiment

[0033] This embodiment provides a dressing mechanism for quickly dressing the outer edge and double end faces of a CBN grinding wheel, as Figure 1 and Figure 2 shown, which includes a spindle base 1 and a dressing spindle 2. The bottom of the spindle base 1 is connected to the equipment main body, and it has an inclined installation cavity. The dressing spindle 2 is arranged in the installation cavity, its output end is arranged upward, and a dressing head 3 is provided at its output end. The dressing spindle 2 drives the dressing head 3 to rotate to dress the outer circle and double end faces of the CBN grinding wheel.

[0034] As Figure 3As shown, the spindle base 1 includes a base 11 and a cover plate 12. The bottom of the base 11 is detachably connected to the equipment main body, and its top is provided with a first arc-shaped groove inclined towards the CBN grinding wheel end. The bottom of the cover plate 12 is detachably connected to the top of the base 11, and a second arc-shaped groove matching the first arc-shaped groove is provided at a position corresponding to the first arc-shaped groove. An installation cavity for fixing the dressing spindle 2 is formed between the first arc-shaped groove and the second arc-shaped groove. The dressing spindle 2 is fixed to the equipment main body through the spindle base 1 and has a certain swing angle.

[0035] In this embodiment, the inclination angle of the first arc-shaped groove is between 10° and 40°, and its inclination angle changes according to the size of the CBN grinding wheel to achieve the best dressing effect.

[0036] The dressing head 3 is detachably connected to the output end of the dressing spindle 1 for easy maintenance and replacement. As Figure 4 shown, a ring-shaped protrusion 31 is provided in the middle of the dressing head 3. The ring-shaped protrusion 31 is perpendicular to the axial direction of the dressing head 3. One end of the ring-shaped protrusion 31 is provided with a first dressing layer 32 arranged around its outer edge. The first dressing layer 32 is used for dressing the right end face of the CBN grinding wheel. The other end of the ring-shaped protrusion 31 is provided with a second dressing layer 33 arranged around its outer edge. The second dressing layer 33 is used for dressing the right end face of the CBN grinding wheel. A third dressing layer 34 is arranged around the dressing head 3 near the end of the second dressing layer 33. The third dressing layer 34 is used for dressing the outer circle of the CBN grinding wheel.

[0037] As Figure 5 shown, the first dressing layer 32 and the second dressing layer 33 are integrally circular rings. The outer edges of the first dressing layer, the ring-shaped protrusion, and the second dressing layer are connected to each other, and gradually incline towards the side of the dressing head 3 from the end of the first dressing layer 32 to the end of the second dressing layer 44, that is, the diameters among the three gradually decrease from the end of the first dressing layer 32 to the end of the second dressing layer 33. The inclination angle can be changed according to the inclination angle of the spindle base 1 to facilitate dressing the right end face and the outer circle of the CBN grinding wheel. The third dressing layer 34 is integrally in the shape of a hollow cylinder. The end of one end of the dressing head and the end of one end of the first ring are connected to each other, and gradually incline towards the side of the dressing spindle from the end of the dressing head to the end of the first ring. The inclination angle can be changed according to the inclination angle of the spindle base 1 to facilitate dressing the left end face and the outer circle of the CBN grinding wheel.

[0038] Compared with the traditional vertically installed disc-shaped dressing roller, the structure of the present utility model has less interference and faster dressing speed. The inclined design of the dressing spindle enables the roller structure to have a 20% higher dressing efficiency than the traditional disc-shaped roller when dressing the end face, and the shape of the dressed grinding wheel is more stable.

[0039] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, 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, it should be considered as falling within the scope described in this specification.

[0040] The above-described embodiments merely represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A dressing mechanism for quickly dressing the outer edge and double end faces of a CBN grinding wheel, characterized in that: include: A spindle base having an inclined mounting cavity; A trimming spindle is arranged in the mounting cavity, a trimming head is arranged at the output end of the trimming spindle, an annular protrusion is arranged in the middle of the trimming head, one end of the annular protrusion is arranged around the outer edge thereof, a second trimming layer is arranged around the outer edge thereof at the other end thereof, and a third trimming layer is arranged around the trimming head near the end of the second trimming layer.

2. The dressing mechanism for quickly dressing the outer edge and double end faces of a CBN grinding wheel according to claim 1, characterized in that: The spindle base includes a base and a cover plate, the bottom of the base is connected to the equipment body, and the top of the base is provided with a first arc groove inclined toward the CBN grinding wheel end, the bottom of the cover plate is detachably connected to the top of the base, and a second arc groove matching the first arc groove is provided at a position corresponding to the first arc groove, and an installation cavity for fixing the dressing spindle is formed between the first arc groove and the second arc groove.

3. The dressing mechanism for quickly dressing the outer edge and double end faces of a CBN grinding wheel according to claim 2, characterized in that: The inclination angle of the first arc-shaped groove is between 10° and 40°.

4. The dressing mechanism for quickly dressing the outer edge and double end faces of a CBN grinding wheel according to claim 1, characterized in that: The dressing head is detachably connected to the output end of the dressing spindle.

5. The dressing mechanism for quickly dressing the outer edge and double end faces of a CBN grinding wheel according to claim 1, characterized in that: The outer edges of the first trimming layer, the annular protrusion and the second trimming layer are connected to each other and gradually inclined from the end of the first trimming layer to the end of the second trimming layer close to the trimming head.

6. The dressing mechanism for quickly dressing the outer edge and double end faces of a CBN grinding wheel according to claim 1, characterized in that: The end of one end of the trimming head and the end of one end of the first circular ring are connected to each other, and are gradually inclined from the trimming head end to the first circular ring end close to the trimming spindle side.

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