Self-falling blade with abnormal warning

Abstract

The present invention relates to the technical field of machine tool milling cutters, and more particularly to a self-collapse blade with abnormal warning. A raised cutting portion is provided at the edge of the upper side surface of the body, and a long fracture groove is provided on the upper surface of the cutting portion, the long fracture groove is parallel to the cutting edge of the cutting portion, and the length extension direction of the long fracture groove on the upper surface of the cutting portion is consistent with the extension direction of the cutting edge of the cutting portion, and the ratio of the depth value of the long fracture groove to the distance value of the long fracture groove from the cutting edge of the cutting portion is 0.16 to 0.54. The ingenious design of the long fracture groove serves to monitor the blade load, and can cause the cutting portion to collapse in advance according to the preset long fracture groove route before the end of the life of the cutting portion, thereby terminating the cutting function. At this time, the cutting load disappears instantly, and the operator can immediately know the abnormal signal and respond in time.

Description

Technical Field

[0001] The invention relates to the technical field of machine tool milling cutters, in particular to a self-collapse blade with abnormal warning. Background Art

[0002] A milling cutter is a rotary tool with one or more teeth used for milling. When working, each tooth cuts off the excess of the workpiece intermittently in sequence. Milling cutters are mainly used to process planes, steps, grooves, forming surfaces and cut off workpieces on milling machines. When optimizing the milling effect, the blade of the milling cutter is another important factor. If more than one blade participates in cutting at any time, it is an advantage, but too many blades participate in cutting at the same time is a disadvantage. When cutting, each cutting edge cannot cut at the same time. The required power is related to the number of cutting edges participating in cutting. In terms of chip formation process, cutting edge load and processing results, the position of the milling cutter relative to the workpiece plays an important role. Among the types of milling cutters, indexable types are more widely used and relatively low in cost. Indexable tools are tools that use mechanical methods to clamp the polygonal blade that can be indexed on the tool arbor or tool body. This type of tool generally uses screws to lock the blade. In the daily cutting process, the blade edge is worn and blunted to a certain extent, the machine tool load becomes heavier, and the blade temperature rises sharply, eventually causing the blade's own strength to collapse under the heavy load, resulting in irregular breakage. This result will inevitably cause damage to the tool body, which may seriously cause a collision accident, resulting in huge economic losses. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a self-collapse blade with abnormal warning. The long fracture groove is cleverly designed to monitor the blade load. Before the life of the cutting part ends, the cutting part can be damaged in advance along the preset long fracture groove route to end the cutting function. At this time, the cutting load disappears instantly, and the operator can immediately know the abnormal signal and respond in time.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solution: a self-collapse blade with abnormal warning, comprising a main body, a raised cutting portion is arranged at the edge of the upper side surface of the main body, a long fracture groove is opened on the upper surface of the cutting portion, the long fracture groove is parallel to the cutting edge of the cutting portion, the length extension direction of the long fracture groove on the upper surface of the cutting portion is consistent with the extension direction of the cutting edge of the cutting portion, and the ratio of the depth value of the long fracture groove to the distance value of the long fracture groove from the cutting edge of the cutting portion is 0.16 to 0.54.

[0005] Preferably, the width of the elongated fracture groove is in the range of 0.15 to 0.5 mm.

[0006] Preferably, the depth of the elongated fracture groove is 0.08 to 0.35 mm.

[0007] Preferably, the number of the cutting parts is at least two, and the at least two cutting parts are arranged along the edges of the upper side and the lower side of the body.

[0008] Preferably, a locking hole for installation and fixation is formed through the body.

[0009] Preferably, the cross-section of the body is a quadrilateral, and the number of the cutting portions is eight, and the eight cutting portions are respectively arranged at four corners of the upper side and the lower side of the body.

[0010] Preferably, the upper surface of the cutting portion is an inclined surface extending downward from the cutting edge to the surface of the main body, and the long fracture groove is opened on the inclined surface.

[0011] Preferably, the length of the long fracture groove opened on the inclined surface is 2.5 to 5 mm.

[0012] The beneficial effect of the present invention is that it provides a self-collapse blade with abnormal warning. In the rough processing environment of machine tool milling, when the cutting part is worn and passivated to a certain extent, the cutting impedance and temperature rise of the blade suddenly increase. If it is not possible to observe, the machine tool operator has no way of knowing that this danger is approaching. The present application cleverly designs a long fracture groove on the cutting part of the blade to monitor the blade load. When the cutting load of the blade cutting part reaches the set load limit, the cutting part is allowed to collapse in advance according to the preset long fracture groove route, causing the tool cutting load to disappear instantly. The machine tool operator can easily get abnormal signals from this change, such as the sudden disappearance of the cutting sound, abnormal noise, and the instantaneous drop of the load indication data. The machine tool operator can respond immediately and stop the machine for inspection, effectively preventing the occurrence of cutting safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0014] Figure 2 It is a schematic diagram of the top structure of the present invention.

[0015] Figure 3 It is a schematic cross-sectional view of the side structure of the present invention.

[0016] Figure 4 for Figure 3 A schematic diagram of the enlarged local three-dimensional structure of part A. DETAILED DESCRIPTION

[0017] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments, and the contents mentioned in the implementation modes are not intended to limit the present invention.

[0018] like Figures 1 to 4As shown, a self-collapse blade with abnormal warning includes a main body 1, a raised cutting portion 2 is arranged at the edge of the upper side surface of the main body 1, and a long fracture groove 3 is opened on the upper surface of the cutting portion 2. The long fracture groove 3 is parallel to the cutting edge of the cutting portion 2, and the length extension direction of the long fracture groove 3 on the upper surface of the cutting portion 2 is consistent with the extension direction of the cutting edge of the cutting portion 2, and the ratio of the depth value of the long fracture groove 3 to the distance value of the long fracture groove 3 from the cutting edge of the cutting portion 2 is 0.16 to 0.54.

[0019] The self-collapse blade with abnormal warning of this embodiment, in the rough processing environment of machine tool milling, when the cutting part 2 is worn and passivated to a certain extent, the cutting resistance and temperature rise of the blade suddenly increase. If it is not possible to observe, the machine tool operator has no way of knowing that this danger is approaching. The present application cleverly designs a long fracture groove 3 on the cutting part 2 of the blade to monitor the blade load. When the cutting load of the cutting part 2 of the blade reaches the set load limit, the cutting part 2 is allowed to collapse in advance along the preset long fracture groove 3 route, causing the tool cutting load to disappear instantly. The machine tool operator can easily get abnormal signals from this change, such as the sudden disappearance of the cutting sound, abnormal noise, and the instantaneous drop of the load indication data. The machine tool operator can respond immediately and stop the machine for inspection, effectively preventing the occurrence of cutting safety accidents.

[0020] The long fracture groove 3 allows the cutting portion 2 to break into a regular shape along a preset route, thereby providing an early warning that the blade cutting portion 2 has reached the load limit, thereby preventing the blade cutting portion 2 from breaking into an irregular shape and causing unpredictable situations. If the degree of breakage is small, there may not be obvious abnormalities, but the processed workpiece will definitely be scrapped. If the degree of breakage is large, it is difficult to predict the collapse, which can easily cause damage to the blade and the tool body. In severe cases, the machine may collide with the machine and damage the machine tool spindle.

[0021] In this embodiment, the width of the long fracture groove 3 is 0.15 to 0.5 mm. The depth of the long fracture groove 3 is 0.08 to 0.35 mm. The numerical limits are the values ​​obtained by the applicant after multiple tests to obtain the best processing and use experience. The width and depth of the long fracture groove 3 are not easy to affect the cutting performance of the cutting part 2 itself within this range, and can effectively achieve the preset breakage situation.

[0022] In this embodiment, the number of the cutting parts 2 is at least two, and the at least two cutting parts 2 are arranged along the edges of the upper side and the lower side of the body 1. The body 1 is penetrated with a locking hole 4 for installation and fixing. Multiple designs of the cutting part 2 can be set according to the actual application of the blade, and the locking hole 4 is used to cooperate with the screw to penetrate and lock it to the blade body for use.

[0023] In this embodiment, the cross-section of the body 1 is a quadrilateral, and the number of the cutting parts 2 is eight, and the eight cutting parts 2 are respectively arranged at the four corners of the upper side and the lower side of the body 1. The upper surface of the cutting part 2 is an inclined surface 5 extending downward from the cutting edge to the surface of the body 1, and the long fracture groove 3 is provided on the inclined surface 5. The cutting parts 2 on the upper and lower sides of the quadrilateral blade are provided with long fracture grooves 3, so that each cutting part 2 can achieve a warning effect. The inclined surface 5 cooperates with the long fracture groove 3 to better achieve collapse according to the preset route, and directly collapses all the parts other than the long fracture groove 3 in the inclined surface 5, so as to achieve a regular shape of collapse and achieve the effect of instantaneous disappearance of the cutting load.

[0024] In this embodiment, the length of the long fracture groove 3 opened on the inclined surface 5 is 2.5 to 5 mm. The length of the fracture groove can be set according to the length of the cutting edge of the chip portion. The quadrilateral blade in this embodiment achieves the best regular chipping effect within this length range.

[0025] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating 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 cannot be understood as limiting the specific scope of protection of the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0027] In the present invention, unless otherwise specified and limited, the terms "assemble", "connect", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or the two elements can be internally connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A self-collapse blade with abnormal warning, comprising a body (1), characterized in that: A raised cutting portion (2) is provided at the edge of the upper side surface of the body (1), and a long fracture groove (3) is provided on the upper surface of the cutting portion (2). The long fracture groove (3) is parallel to the cutting edge of the cutting portion (2), and the length extension direction of the long fracture groove (3) on the upper surface of the cutting portion (2) is consistent with the extension direction of the cutting edge of the cutting portion (2). The ratio of the depth value of the long fracture groove (3) to the distance value of the long fracture groove (3) from the cutting edge of the cutting portion (2) is 0.16 to 0.

54.

2. The self-collapse blade with abnormal warning according to claim 1, characterized in that: The width of the elongated fracture groove (3) is 0.15 to 0.5 mm.

3. The self-collapse blade with abnormal warning according to claim 1, characterized in that: The depth of the elongated fracture groove (3) is 0.08 to 0.35 mm.

4. The self-collapse blade with abnormal warning according to claim 1, characterized in that: The number of the cutting parts (2) is at least two, and the at least two cutting parts (2) are arranged along the edges of the upper side and the lower side of the body (1).

5. The self-collapse blade with abnormal warning according to claim 1, characterized in that: The body (1) is provided with a locking hole (4) for installation and fixation.

6. The self-collapse blade with abnormal warning according to claim 1, characterized in that: The cross section of the body (1) is a quadrilateral, and the number of the cutting portions (2) is eight. The eight cutting portions (2) are respectively arranged at four corners of the upper side and the lower side of the body (1).

7. The self-collapse blade with abnormal warning according to claim 6, characterized in that: The upper surface of the cutting portion (2) is an inclined surface (5) extending downwardly from the cutting edge to the surface of the body (1), and the long fracture groove (3) is provided on the inclined surface (5).

8. The self-collapse blade with abnormal warning according to claim 7, characterized in that: The length of the long fracture groove (3) opened on the inclined surface (5) is 2.5 to 5 mm.

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