Single-edge chip breaking electrode cap sharpening blade

Abstract

The utility model belongs to the technical field of electrode cap sharpening equipment, and particularly relates to a single-blade chip breaking electrode cap sharpening blade which comprises a blade body, the blade body is provided with a front blade face, a rear blade face and a blade, the shape of the blade is matched with the appearance of an electrode cap, a chip rolling boss is arranged on the front blade face and provided with a guide face, and the guide face is provided with a groove. The guide face extends in the direction parallel to the cutting edge, and the included angle between the guide face and the front cutter face is 120 degrees. The single-edge chip breaking electrode cap sharpening blade has the advantages that the single-edge chip breaking electrode cap sharpening blade has chip rolling and chip breaking functions at the same time, when an electrode cap is sharpened, copper chips generated in the sharpening process are smoothly guided out through chip rolling and chip breaking, the sharpened copper chips are prevented from being accumulated at the blade, sharpening is smoother, and the service life of the electrode cap is prolonged. And finally, the ground copper cuttings are spiral rolled cuttings in clusters.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrode cap grinding equipment, in particular to a single-edged chip-breaking electrode cap grinding blade. Background Art

[0002] In the resistance welding production of the automobile manufacturing industry, the quality of the end face of the welding electrode directly affects the welding strength. In order to ensure the welding quality, after welding a certain number of welding points, it is usually necessary to use an electrode cap grinder to grind the welding electrode to remove the oxide layer on the end face of the electrode cap.

[0003] In the past grinding process, the copper chips produced were fan-shaped and difficult to clean after falling. The copper chips accumulated on the blade and pressed against the electrode cap for a second time, causing damage to the electrode cap. Utility Model Content

[0004] The utility model aims to provide a single-edged chip-breaking electrode cap grinding blade to solve the problem of copper chips accumulated on the blade during grinding in the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A single-edged chip-breaking electrode cap grinding blade comprises a blade body, wherein the blade body has a rake face, a flank face and a blade edge, the shape of the blade edge is adapted to the shape of the electrode cap, a chip rolling boss is provided on the rake face, the chip rolling boss has a guide surface, the guide surface extends in a direction parallel to the blade edge, and the angle between the guide surface and the rake face is 120 degrees.

[0007] The beneficial effect of the single-edged chip-breaking electrode cap grinding blade provided by the utility model is that: compared with the prior art, by providing a chip rolling boss on the front blade surface, the chip rolling boss has a guide surface, the guide surface extends in a direction parallel to the blade, and the included angle between the guide surface and the front blade surface is 120°, when the electrode cap is cut, the front end of the copper chips hits the guide surface of the chip rolling boss, the guide surface can change the extrusion direction of the copper chips, so that the copper chips shrink and curl in the space between the guide surface and the outer surface of the electrode cap to form a spiral chip roll, as the number of winding turns increases, the outer diameter of the chip roll increases, the chip roll is squeezed by the electrode cap and breaks. The single-edged chip-breaking electrode cap grinding blade provided by the utility model has both chip rolling and chip breaking functions, when the electrode cap is ground, the copper chips generated in the grinding process are smoothly guided out by chip rolling and chip breaking, avoiding the accumulation of copper chips from grinding at the blade, making the grinding smoother, and finally the copper chips from grinding are clusters of spiral chips.

[0008] In one embodiment, the shape of the blade is an arc that matches the electrode cap, and the shape of the guide surface is also an arc.

[0009] In one embodiment, the back angle of the single-edged chip breaking electrode cap grinding blade is 3°.

[0010] In one of the embodiments, the single-edged chip breaker electrode cap grinding blade is a vertically symmetrical structure, and the blade body is respectively disposed at the upper and lower ends of the single-edged chip breaker electrode cap grinding blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0012] Figure 1 It is a structural schematic diagram of a single-edged chip-breaking electrode cap grinding blade according to an embodiment of the utility model;

[0013] Figure 2 It is a schematic diagram of the formation of chips during the grinding process of the single-edged chip-breaking electrode cap grinding blade of the embodiment of the utility model;

[0014] Figure 3 It is a schematic diagram of the formation of chips between the single-edged chip breaking electrode cap grinding blade and the electrode cap according to an embodiment of the utility model.

[0015] Among them, the reference numerals in the figure are:

[0016] 1. Blade body; 10. Mounting hole; 11. Blade; 12. Front blade surface; 13. Rear blade surface;

[0017] 2. Chip rolling boss; 21. Guide surface. DETAILED DESCRIPTION

[0018] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0019] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 therefore cannot be understood as a limitation on the present invention.

[0020] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0021] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] like Figures 1-2 As shown, the single-edged chip-breaking electrode cap grinding blade provided by the utility model comprises a blade body, wherein the blade body 1 has a rake face 12, a flank face 13 and a blade edge 11, wherein the blade edge 11 is obtained by the intersection of the rake face 12 and the flank face 13, the rake face 12 is the surface of chip flow, and most of the rake face 12 is kept in close contact with the flowing chips. The shape of the blade edge 11 is adapted to the shape of the electrode cap.

[0023] A chip rolling boss 2 is provided on the front cutting edge 12, and the chip rolling boss 2 has a guide surface 21. The distance between the guide surface 21 and the electrode cap is greater than the distance between the blade 11 and the electrode cap. The guide surface 21 extends in a direction parallel to the blade 11, and the angle between the guide surface 21 and the front cutting edge 12 is 120°.

[0024] See also Figure 2 and Figure 3When the electrode cap is being ground, the single-edged chip-breaking electrode cap grinding blade rotates around its rotation centerline (in the figure, the blade rotates clockwise when viewed from top to bottom), and the electrode cap is cut. The cut copper chips are extruded along the front blade surface 12. The cut copper chips are very thin. Since the guide surface 21 has a certain angle, when the front end of the copper chips hits the guide surface 21 of the chip rolling boss 2, the guide surface can change the extrusion direction of the copper chips, so that the copper chips shrink and curl in the space between the guide surface 21 and the outer surface of the electrode cap to form a spiral chip. As the number of windings increases, the outer diameter of the chip becomes larger, and the chip is squeezed by the electrode cap and breaks. The copper chips generated by subsequent cutting continue to shrink and curl in the space between the guide surface 21 and the outer surface of the electrode cap to form another spiral chip. The broken previous spiral chip is discharged from the side of the blade. The copper chips finally ground are clusters of spiral chips.

[0025] Compared with the prior art, the single-edged chip-breaking electrode cap grinding blade provided by the utility model has a chip rolling boss on the front blade surface, the chip rolling boss has a guide surface, the guide surface extends in a direction parallel to the blade, and the angle between the guide surface and the front blade surface is 120°. When the electrode cap is cut, the front end of the copper chips hits the guide surface of the chip rolling boss, and the guide surface can change the extrusion direction of the copper chips, so that the copper chips shrink and curl in the space between the guide surface and the outer surface of the electrode cap to form spiral chips. As the number of winding turns increases, the outer diameter of the chips increases, and the chips are squeezed by the electrode cap to break. The single-edged chip-breaking electrode cap grinding blade provided by the utility model has both chip rolling and chip breaking functions. When the electrode cap is ground, the copper chips generated in the grinding process are smoothly guided out by chip rolling and chip breaking, avoiding the accumulation of copper chips from grinding at the blade, making the grinding smoother, and finally the copper chips from grinding are clusters of spiral chips.

[0026] In one embodiment, the blade is in an arc shape that matches the electrode cap, and the guide surface is also in an arc shape.

[0027] In one embodiment, a mounting hole 10 for screws to pass through is provided on the single-edged chip breaker electrode cap grinding blade, and the single-edged chip breaker electrode cap grinding blade is connected to a tool holder of an electrode cap grinding machine by screws.

[0028] In one embodiment, the distance L from the intersection line of the guide surface 21 and the rake surface 12 to the cutting edge 11 is 1.8-3 mm.

[0029] In one embodiment, the back angle of the single-edged chip breaker electrode cap grinding blade is 3°, that is, the angle between the back face 13 and the cutting plane is 3°. The back angle can reduce the friction between the back face 13 of the tool and the machining surface of the electrode cap, thereby improving the machining surface quality.

[0030] In one embodiment, the single-edged chip-breaking electrode cap grinding blade is a symmetrical structure, and the blade bodies are respectively arranged at the upper and lower ends of the single-edged chip-breaking electrode cap grinding blade, so that the electrode cap grinding machine can grind the upper and lower electrode caps at the same time, and the grinding efficiency is high.

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

Claims

1. A single-edged chip-breaking electrode cap grinding blade, characterized in that: The single-edged chip breaking electrode cap grinding blade comprises a blade body having a rake face, a flank face and a blade. The shape of the blade is adapted to the shape of the electrode cap. A chip rolling boss is provided on the rake face. The chip rolling boss has a guide surface extending in a direction parallel to the blade, and an angle between the guide surface and the rake face is 120 degrees.

2. The single-edged chip-breaking electrode cap grinding blade according to claim 1, characterized in that: The shape of the blade is an arc that matches the electrode cap, and the shape of the guide surface is also an arc.

3. The single-edged chip-breaking electrode cap grinding blade according to claim 1, characterized in that: The back angle of the single-edged chip-breaking electrode cap grinding blade is 3°.

4. The single-edged chip-breaking electrode cap grinding blade according to claim 1, characterized in that: The single-edged chip breaker electrode cap grinding blade is a vertically symmetrical structure, and the blade bodies are respectively arranged at the upper and lower ends of the single-edged chip breaker electrode cap grinding blade.

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