CN209773572U - Electrode sharp angle forming cutter - Google Patents

Abstract

The utility model provides an electrode sharp angle shaping sword, it includes interconnect's tool bit and handle of a knife, the tool bit have at least one with graphite electrode's sharp angle structure assorted angular cutting edge, the tool bit can process out graphite electrode's sharp angle when removing. Through set up on the tool bit with electrode sharp angle structure assorted angular form cutting edge, the mode through removing the shaping sword drives angular form cutting edge and processes out the electrode sharp angle with the action of shovel, shaving, carving class on the corner of electrode, can install the tool bit and process on the main shaft of lathe, can improve clear angle efficiency, and the dynamics of clear angle is comparatively easy to handle the accuse, promotes clear angle effect, guarantees the electrode machining yield.

Description

Electrode sharp angle forming cutter

Technical Field

The utility model relates to an electrode sharp angle processing technology field especially relates to an electrode sharp angle shaping sword.

Background

In the processing production, the manual corner cleaning mode is usually adopted for the multi-bone-position sharp corners, and the cleaning of the sharp corners is long in time. Particularly, when a die with a plurality of bone positions, such as a die electrode, is used, the processing cutter is a rotary processing cutter during processing, so that corners on the die electrode are rounded, and no sharp corner can be generated.

Among the prior art, thereby clear up the fillet structure on the corner through manual processing and produce the sharp angle with electrode machining, two thick two smart four electrode manual machining sharp angles need the time longer, process out the effect relatively poor moreover, manual clearance dynamics is not good to be held, clears up absolutely easily. If the electrode is disassembled again, the number of the electrodes is too large, the strength is not enough, and the electrodes are broken during processing, so that the manual electrode angle cleaning mode for the electrodes is large in workload and high in operation requirement of workers.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides an electrode sharp angle shaping sword to solve among the prior art problem that long consuming time, effect are poor, the electrode production yield is low that manual processing electrode sharp angle exists.

The utility model provides a scheme does: the electrode sharp angle forming cutter comprises a cutter head and a cutter handle which are connected with each other, wherein the cutter head is provided with at least one angular cutting edge matched with the sharp angle structure of an electrode;

The tool bit can machine the sharp angle of the electrode when moving.

As a further alternative of the electrode sharp corner forming cutter, the cross section of the cutter head is rectangular, and the rectangular corners of the cutter head are used as the corner cutting edges.

As a further alternative to the electrode sharp corner forming knife, the end of the cutting head has a groove.

As a further alternative to the electrode sharp edged forming knife, the recess has side walls that slope inwardly from the edge of the cutting head.

As a further alternative of the electrode sharp corner forming knife, a cambered surface transition section is arranged between the side wall of the groove and the bottom surface of the groove.

As a further alternative of the electrode sharp-cornered forming knife, the outer wall of the cutting head has a slope that is inclined inward from the end.

As a further alternative of the electrode sharp angle forming cutter, an inclination angle of an outer wall of the cutter head is smaller than an inclination angle of an inner wall of the groove.

As a further optional scheme of the electrode sharp-angle forming cutter, the forming cutter is connected to a spindle of a numerical control machine tool through the cutter handle, and the spindle of the numerical control machine tool outputs three-axis movement.

As a further optional scheme of the electrode sharp-angle forming cutter, the cutter head and the cutter handle are of an integrally formed structure.

As a further alternative of the electrode sharp angle forming cutter, the cutter head is formed by cutting on the cutter handle.

The utility model discloses an electrode sharp angle shaping sword has following beneficial effect:

Through set up on the tool bit with electrode sharp angle structure assorted angular form cutting edge, the mode through removing the shaping sword drives angular form cutting edge and processes out the electrode sharp angle with the action of shovel, shaving, carving class on the corner of electrode, can install the tool bit and process on the main shaft of lathe, can improve clear angle efficiency, and the dynamics of clear angle is comparatively easy to handle the accuse, promotes clear angle effect, guarantees the electrode machining yield.

To make the aforementioned and other objects, features and advantages of the present invention more apparent and understandable, embodiments are described below in detail with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 shows a schematic structural diagram of an electrode sharp corner forming knife and an electrode provided in embodiment 1 of the present invention;

Fig. 2 shows an axial structure diagram of an electrode sharp-angle forming cutter provided in embodiment 1 of the present invention;

FIG. 3 is a schematic view of a portion of the enlarged structure at A in FIG. 1;

Fig. 4 shows a schematic cross-sectional structure diagram of an electrode sharp corner forming knife provided in embodiment 1 of the present invention.

Description of the main element symbols:

100-forming a cutter; 110-a cutter head; 111-angle cutting edge; 112-a groove; 120-tool shank.

Detailed Description

reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Example 1

Referring to fig. 1-2, the present embodiment provides an electrode sharp corner forming tool 100 for processing a round corner generated in a previous milling process of an electrode, such as a graphite electrode, into a sharp corner, i.e., for cleaning the round shape of the electrode to form the sharp corner. The electrode sharp angle forming cutter 100 is hereinafter referred to simply as a forming cutter 100, and the forming cutter 100 includes a cutter head 110 and a cutter handle 120 connected to each other.

The cutting head 110 has at least one angular cutting edge 111 matching with the sharp corner structure of the electrode, and the cutting head 110 moves to cut the corner of the graphite electrode, thereby achieving the effect of forming the sharp corner of the electrode. Because the cutting edge on this tool bit 110 and the structure phase-match of electrode sharp angle, can effectively amputate the sharp angle on the electrode when tool bit 110 removes, promote clearance efficiency. The cutting edge is angular, and the electrode is provided with a flat and smooth sharp angle by moving along the edge of the electrode to make the edge of the electrode flat with a continuous surface formed when the cutting edge moves and cutting off redundant parts on the edge of the electrode.

In addition, when the forming cutter 100 is connected to a machine tool, the forming cutter can be driven by the machine tool to replace manual machining, and the machine tool can provide driving force with stable direction and size for the forming cutter 100, so that the forming cutter 100 has uniform machining effect, the machining performance of the forming cutter 100 is optimized, uneven structural strength of an electrode after the sharp corner is cleaned due to uneven force application of the sharp corner is avoided, and the problem of electrode breakage in the subsequent machining process of the electrode is avoided.

In this embodiment, the electrode is a mold electrode, and has a plurality of bone positions, forming a plurality of rectangular spaces, and also forming a plurality of right-angled corners oriented with four corners of the rectangle. The cutting head 110 has a rectangular cross section, and the rectangular corners of the cutting head 110 serve as angular cutting edges 111.

As shown in fig. 3, since the electrodes have right-angled corners, and the right-angled corners of the graphite electrodes are all oriented to the corners of the rectangle, each corner on the electrodes can be oriented to fall on one of the corners of the same rectangle. Thus, the tool tip 110 is provided to have a rectangular cross section, so that the tool tip 110 has four angular cutting edges 111 whose orientations can be covered with the orientation of each corner of the electrode.

The edge of the end of the tool bit 110 serves as a cutting portion, and the right-angled corner of the tool bit 110 forms an angled cutting edge 111 that matches the right-angled corner of the electrode. When the tool bit 110 is aligned with one corner of one electrode, the tool bit 110 can be aligned with the corners in other directions in a moving manner. When cutting different corners, need not to counterpoint through rotating, the counterpoint degree of difficulty is showing and is reducing, the counterpoint precision is showing and promotes, can promote the machining efficiency of the sharp angle of electrode by a wide margin and optimize the machining effect of electrode by a wide margin.

Of course, in other embodiments, the cutting head 110 of the forming tool 100 may have one, two or other number of angular cutting edges 111, and the forming tool 100 with such a structure needs to rotate the forming tool 100 or align the workpiece when aligning to clean the sharp angle. If the cutting head 110 has an angular cutting edge 111, when the cutting head is used for processing sharp angles in different directions, the cutting head is rotated by 90 degrees, 180 degrees or 270 degrees, so that the angle switching alignment effect is achieved.

Referring to fig. 4, in the embodiment, the end of the cutting head 110 has a groove 112, and the groove 112 is disposed to thin the structure of the position where the angular cutting edge 111 is located, so as to reduce the contact area between the cutting edge and the electrode, so that the cutting edge can generate a greater pressure to the electrode when receiving a certain driving force, and the cutting is easier. Meanwhile, the structure of the position of the angular cutting edge 111 is thinned, the hardness and brittleness of the angular cutting edge 111 can be reduced, the elasticity and the plasticity of the angular cutting edge 111 are improved, and the cutting edge can be effectively prevented from cutting and cracking.

Further, the groove 112 at the end of the cutting head 110 also has a function of accommodating chips, and the chips cut by the cutting edge have a certain influence on the continuous extension of the cutting head 110 into the electrode, so that the processing of the sharp corner on the electrode is incomplete, and the problem of incomplete cleaning of the round corner at the position of the corner of the electrode close to the bottom exists. The grooves 112 have a certain chip-receiving effect, so that the tool bits 110 can extend into a designated position, and the full-face machining can be performed on the sharp corners of the electrode.

further, the groove 112 has sidewalls that slope inward from the edge of the tool tip 110. Therefore, the cutter has a sharp angle-shaped cutting edge 111, the strength requirement of the cutter and the cutting structure can be met, and the cutting edge of the cutter is further prevented from cracking.

Further, there is a cambered transition between the side wall of the groove 112 and the bottom surface of the groove 112. Therefore, the intersection angle between the cutting structure and the tool bit 110 body is avoided to be a sharp angle, and the problem of stress concentration or the influence of overlarge stress concentration on the durability of the forming tool 100 when the forming tool 100 performs cutting action is avoided.

In this embodiment, the outer wall of the cutter head 110 has a slope inclined inward from the end. The end of the cutting head 110 is large, that is, the section of the cutting head 110 at the position of the angular cutting edge 111 is large/largest, so that the contact surface between the forming cutter 100 and the electrode can be effectively reduced, and the friction force between the forming cutter 100 and the electrode can be reduced, thereby preventing the electrode from cracking when the forming cutter 100 is used for processing the sharp angle of the electrode.

Meanwhile, a certain gap is formed between the electrode and the rest of the forming cutter 100 except the angular cutting edge 111, the gap also has the effect of containing chips, and the chips processed by the forming cutter 100 cannot enter between the electrode and the forming cutter 100, so that the surface of the electrode is abraded, and the processing precision of the forming cutter 100 is influenced.

Further, the outer wall of the cutter head 110 has an inclination smaller than that of the inner wall of the groove 112. Therefore, on one hand, the inward wall thickness of the self-angle cutting edge 111 of the cutter is increased, the strength of a cutting structure is guaranteed, on the other hand, the outward expansion size of the end part of the cutter head 110 is made to be as small as possible, the external contour size of the forming cutter 100 is reduced, the forming cutter 100 can extend into a small space to be machined, and the applicability of the forming cutter 100 is improved.

in this embodiment, the forming tool 100 is applied to a numerical control machine tool, the forming tool 100 is connected to a spindle of the numerical control machine tool through a tool holder 120, and the spindle of the numerical control machine tool drives the counter electrode to perform sharp angle machining. The tool shank 120 of the forming tool 100 is fixed on the spindle by being clamped on a fixture of the spindle, and the tool bit 110 is exposed out of the fixture after the fixing, so that the perpendicularity of the forming tool 100 can be calibrated and adjusted by the clamping tightness of the spindle fixture.

according to the structure of the electrode, namely, according to the distribution of the corners on the electrode, a control program is compiled, so that the automatic control of the moving track of the forming cutter 100 is realized, and further, the automation of electrode sharp corner machining is realized. The numerical control machine tool provides stable driving force for the forming cutter 100 by driving the forming cutter 100, so that the sharp angle machined by the forming cutter 100 has better consistency.

Further, the main shaft of the numerical control machine tool outputs three-axis movement, the forming cutter 100 performs machining by moving shoveling, scraping and carving during machining, the forming cutter 100 performs sharp angle machining by descending, and the corners of the electrodes are aligned in parallel, so that the machining of the sharp angles of the electrodes by the forming cutter 100 can be achieved by three-axis movement.

In this embodiment, the tool bit 110 and the tool holder 120 are integrally formed. The handle 120 is used as a connecting part of the forming cutter 100, the cutter head 110 is used as a cutting part of the forming cutter 100, the connecting strength between the handle 120 and the cutter head 110 directly influences the service life of the forming cutter 100, the handle 120 and the cutter head 110 are integrated, and no connecting stress concentration exists, so that the forming cutter 100 has better mechanical properties.

Cutting tip 110 is formed by cutting a shank 120. The cutter handle 120 is cylindrical, the cutter head 110 is square rod-shaped, and the rectangular section of the end part of the cutter head 110 falls in the circular section of the cutter handle 120, so that when the forming cutter 100 is machined, a round rod can be adopted for removing materials, the cutter head 110 is directly machined, and the machining process is simplified.

The forming tool 100 is a carbide tool, and may be made of existing cutting and milling tools, such as high-speed steel. Due to the high hardness of the material of the forming tool 100, when the tool tip 110 and the groove 112 on the tool tip 110 are machined, electric sparks or the like can be used for machining.

The electrode sharp corner forming cutter 100 of the embodiment has the following technical effects:

1. The angle-shaped cutting edge 111 matched with the electrode sharp angle is arranged, the processing efficiency of the electrode sharp angle can be improved, the shape of the angle-shaped cutting edge 111 of the forming cutter 100 is consistent, the cutting force is consistent, the consistency of electrode sharp angle processing can be guaranteed, and the processing effect is optimized.

2. Since the cutting head 110 having a rectangular cross section is used, the angular cutting edges 111 are formed at the four corners of the same rectangle, and it is not necessary to align the angular cutting edges 111 with the electrode corners by rotating the forming cutter 100 when machining the sharp corners of the electrode.

3. The groove 112 is formed in the tool bit 110, so that the contact area between the cutting edge and the electrode is reduced, the cutting effect of the cutting edge is better, and the angular cutting edge 111 can be effectively prevented from cracking during cutting.

4. The end of the cutter head 110 is provided with an outward-expanding structure, so that the contact area between the forming cutter 100 and the electrode is reduced, the friction force generated between the forming cutter 100 and the electrode is reduced, and the electrode is effectively prevented from cracking during processing.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. The electrode sharp angle forming cutter is characterized by comprising a cutter head and a cutter handle which are connected with each other, wherein the cutter head is provided with at least one angular cutting edge matched with the sharp angle structure of an electrode;

The tool bit can machine the sharp angle of the electrode when moving.

2. The electrode sharp corner forming cutter according to claim 1, wherein the cross section of the tip is rectangular, and the rectangular corners of the tip serve as the angular cutting edges.

3. The electrode sharp corner forming knife of claim 2 wherein the tip of the blade has a groove.

4. The electrode sharp comer forming knife of claim 3 wherein said groove has sidewalls that slope inwardly from the edge of said cutting tip.

5. The electrode sharp corner forming knife of claim 4 wherein there is a cambered transition between the side wall of the groove and the bottom surface of the groove.

6. the electrode sharp corner forming knife of claim 5 wherein the outer wall of the cutting head has a bevel that slopes inwardly from the end.

7. The electrode sharp angle forming cutter of claim 6 wherein the angle of inclination of the outer wall of said cutting head is less than the angle of inclination of the inner wall of said recess.

8. The electrode sharp angle forming cutter according to claim 1, wherein the electrode sharp angle forming cutter is connected to a main shaft of a numerical control machine tool through the cutter handle, and the main shaft of the numerical control machine tool outputs three-axis movement.

9. the electrode sharp angle forming knife of claim 1 wherein the cutting head and the handle are of an integral structure.

10. The electrode sharp angle forming knife of claim 9 wherein said cutting tip is cut into said shank.