CN214920831U

CN214920831U - Super little footpath S type ball sword

Info

Publication number: CN214920831U
Application number: CN202120891979.1U
Authority: CN
Inventors: 娄兵占
Original assignee: Kunshan Xiangrun Tool Equipment Co ltd
Current assignee: Kunshan Xiangrun Tool Equipment Co ltd
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2021-11-30
Anticipated expiration: 2031-04-27

Abstract

The utility model provides an ultra-micro-diameter S-shaped ball sword, includes knife face, first back knife face and blade behind the second, knife face and first back knife face meet behind the second, the blade form in knife face and first back knife face department of meeting behind the second, the blade is the S-shaped, the linear distance at blade both ends is not more than 0.05 mm. The utility model discloses super little footpath S type ball sword, including second back knife face, first back knife face and blade, second back knife face and first back knife face meet, the blade is formed at second back knife face and the first back knife face department of meeting, the blade is the S-shaped, modifies the straight blade of old figure system into S-shaped form, makes the blade sharper, and the cutting resistance is little in the course of working, and thus can obtain fine processing surface quality; the linear distance between the two ends of the cutting edge is not more than 0.05mm, the diameter of the hair of ordinary people is 0.07-0.08mm, and the cutting edge is formed on the rod body with the diameter smaller than that of the hair to meet the high-precision requirement; the rake angle is reasonably set, and the grinding process of the ball cutter is controlled in real time, so that the precision of the ball cutter is improved.

Description

Super little footpath S type ball sword

[ technical field ] A method for producing a semiconductor device

The utility model relates to a mould high accuracy processing technology field, in particular to super little footpath S type ball sword.

[ background of the invention ]

Ball cutters are used quite frequently in current high precision machining. However, when the ball cutter is used, the cutting linear speed can be changed constantly due to different contact points, and the service life of the cutter can be greatly reduced.

The ball cutter is generally of an integral spherical structure and can be used for machining narrow concave areas. However, no matter how high the rotation speed is, the centre point of the ball cutter is always stationary, and the part is constantly milling when it is in contact with the workpiece, which is why we often see that the tip of the ball cutter is particularly prone to wear. We have also found that the smoother the area, the less smooth the finish produced by the ball cutter. At present, most ball cutters produced in China have short processing life, because the quality of the cutting edge is poor and the size precision and the profile degree of the ball head are unstable, size deviation and low-quality surface finish degree can appear when a high-precision die is processed, and the cutting edge is seriously abraded when mild steel is processed under the same processing condition.

In the ultra-precise electronic industry such as semiconductors, a plurality of ultra-micro-diameter milling cutters or drill bits can be applied, but the stability is difficult to ensure due to poor cutting edge quality and small ball head size precision and profile.

[ Utility model ] content

An object of the utility model is to provide a blade is more sharp super small S type ball sword.

The utility model aims at realizing through the following technical scheme:

the utility model provides an ultra-micro-diameter S-shaped ball sword, includes knife face, first back knife face and blade behind the second, knife face and first back knife face meet behind the second, the blade form in knife face and first back knife face department of meeting behind the second, the blade is the S-shaped, the linear distance at blade both ends is not more than 0.05 mm.

In one embodiment, the cutting edge is wavy.

In one embodiment, the second flank surface forms a rake angle with the machining surface, and the rake angle is 8-15 °.

In one embodiment, the rake angle is 12 °.

In one embodiment, the grinding process of the ball cutter adopts a grinding wheel to grind, the grinding wheel comprises a high-gloss grinding wheel, and the cutting edge is ground by the high-gloss grinding wheel.

In one embodiment, the second rear tool face and the first rear tool face are both polished by the highlight grinding wheel.

In one embodiment, a controller is adopted to control the grinding wheel during grinding of the ball cutter, and the controller controls the grinding wheel to rotate in real time during grinding of the grinding wheel.

In one embodiment, a controller is adopted to control the ball cutter rotating speed and feeding in the ball cutter grinding process.

In one embodiment, the ball cutter is ground in a high-rotating-speed low-feeding mode.

In one embodiment, the room temperature and the oil temperature used when the grinding wheel polishes are controlled within +/-0.2 degrees.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses super little footpath S type ball sword, including second back knife face, first back knife face and blade, second back knife face and first back knife face meet, the blade is formed at second back knife face and the first back knife face department of meeting, the blade is the S-shaped, modifies the straight blade of old figure system into S-shaped form, makes the blade sharper, and the cutting resistance is little in the course of working, and thus can obtain fine processing surface quality; the linear distance between the two ends of the cutting edge is not more than 0.05mm, the diameter of the hair of ordinary people is 0.07-0.8mm, and the cutting edge is formed on the rod body with the diameter smaller than that of the hair to meet the requirement of high precision; the rake angle is reasonably set, and the grinding process of the ball cutter is controlled in real time, so that the precision of the ball cutter is improved; in the processing process, the vibration and cutting resistance of the cutter can be effectively reduced through the damping blade ground by the highlight grinding wheel, so that the processing is lighter and faster; the oil temperature and the room temperature are controlled to be +/-0.2 degrees, and the machining stability of the cutter is strictly ensured.

[ description of the drawings ]

FIG. 1 is a partial schematic view of an ultramicro-diameter S-shaped ball cutter of the present invention;

fig. 2 is a schematic structural view of the ultramicro-diameter S-shaped ball cutter of the present invention.

The relevant elements in the figures are numbered correspondingly as follows:

1. a second rear knife face is arranged on the second rear knife face,

2. a first rear knife face is arranged on the first rear knife face,

3. a cutting edge is arranged on the cutting edge,

10. a ball head is arranged at the upper end of the ball head,

20. and (3) a bar material.

[ detailed description ] embodiments

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the scope of the present application. Furthermore, the terms "first", "second", etc. 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," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention of the present application, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific situations.

FIG. 1 is a partial schematic view of an ultramicro-diameter S-shaped ball cutter of the present invention; fig. 2 is a schematic structural view of the ultramicro-diameter S-shaped ball cutter of the present invention.

Referring to fig. 2, an ultra-small diameter S-shaped ball cutter is made of cemented carbide as a whole. The bar 20 is processed by the power source, so that the ball point position rotates around the rotation axis, thereby driving the ball cutter 10 to rotate and feed.

Referring to fig. 1, the ultra-micro diameter S-shaped ball cutter includes a first flank surface 2, a second flank surface 1, and a cutting edge 3, wherein the cutting edge 3 is formed at the joint of the second flank surface 1 and the first flank surface 2. The shape of the cutting edge 3 is a curve and conforms to the pre-forming structure required by the processing part of the workpiece, the highlight effect can be achieved without multiple processing, and the processing precision and the cutting power are improved. In order to further reduce the cutting resistance and obtain good quality of the processed surface, the cutting edge 3 is S-shaped. The linear distance between the two ends of the cutting edge 3 is not more than 0.05mm, the linear distance between the two ends of the cutting edge is not more than 0.05mm, the diameter of the hair of a common person is 0.07-0.08mm, and the cutting edge is formed on the rod body with the diameter smaller than that of the hair to meet the high-precision requirement.

In one embodiment, the cutting edge 3 is wavy, and the wavy cutting edge 3 has a multi-stage fluctuation, so that the cutting resistance is further reduced.

In order to improve the accuracy of the ball cutter, in one embodiment, a rake angle is formed between the second flank surface 1 and the machined surface, and the rake angle is 8-15 degrees. Preferably, in one embodiment, the rake angle is 12 °.

In order to ensure the final precision of the machining, in one embodiment, the grinding process of the ball cutter is implemented by grinding with a grinding wheel, the grinding wheel comprises a high-gloss grinding wheel, and the cutting edge 3 is ground by the high-gloss grinding wheel. By adopting the highlight grinding wheel combination with the granularity of SDC3000 and an oil product with lower viscosity, the sawteeth of the cutting edge are ensured to be as small as possible, and the grains are as fine and smooth as possible. Preferably, in one embodiment, the second flank face 1 and the first flank face 2 are both polished by a high-gloss grinding wheel.

In order to ensure the final precision of the machining, in one embodiment, a controller is used for controlling the grinding wheel in the grinding process of the ball cutter, and the controller controls the grinding wheel to rotate in real time in the grinding process of the grinding wheel. The ball-point mill can be selected from MAKINO SEIKI tool grinder, model SS 7. The processing advantage lies in U axle location, and only A axle and W axle are in the motion when processing circular arc class cutter, and the participation axle number is few, has promoted bulb precision grade greatly. The online dressing of the grinding wheel comprises the matching of the feeding speed and the rotating speed, and the selection of the granularity of the grinding wheel, thereby facilitating the verification of the machining precision and the machining correction.

The profile tolerance is used for describing the dimensional accuracy of the curved surface, and the main index is a profile tolerance error which refers to the variation condition of the measured actual profile relative to the ideal profile. In one embodiment, a controller is used to control the ball cutter rotation speed and feed during the ball cutter grinding process. Preferably, in one embodiment, the ball cutter is ground by a high-speed low-feed method. The grinding process adopts a high-rotating-speed low-feeding mode as far as possible, the grinding wheel must be trimmed on line, and the vibration is suppressed to the lowest, so that the profile tolerance is controlled within +/-0.001 mm, the precision target and the target effect can be achieved without multiple processing, and the yield of the ball cutter are improved.

In one embodiment, the room temperature and the oil temperature used during grinding of the grinding wheel are controlled within +/-0.2 degrees, the machining stability of the cutter is strictly ensured, the machining error is reduced, and the yield is improved.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses super little footpath S type ball sword, including second back knife face, first back knife face and blade, second back knife face and first back knife face meet, the blade is formed at second back knife face and the first back knife face department of meeting, the blade is the S-shaped, modifies the straight blade of old figure system into S-shaped form, makes the blade sharper, and the cutting resistance is little in the course of working, and thus can obtain fine processing surface quality; the linear distance between the two ends of the cutting edge is not more than 0.05mm, the diameter of the hair of ordinary people is 0.07-0.08mm, and the cutting edge is formed on the rod body with the diameter smaller than that of the hair to meet the high-precision requirement; the rake angle is reasonably set, and the grinding process of the ball cutter is controlled in real time, so that the precision of the ball cutter is improved; in the processing process, the vibration and cutting resistance of the cutter can be effectively reduced through the damping blade ground by the highlight grinding wheel, so that the processing is lighter and faster; the oil temperature and the room temperature are controlled to be +/-0.2 degrees, and the machining stability of the cutter is strictly ensured.

In light of the foregoing description of the preferred embodiments according to the present application, it is to be understood that various changes and modifications may be made without departing from the spirit and scope of the invention. The technical scope of the present application is not limited to the contents of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides an ultra-micro-diameter S-shaped ball sword which characterized in that, includes knife face, first back knife face and blade behind the second, knife face and first back knife face meet behind the second, the blade form in knife face and first back knife face department of meeting behind the second, the blade is the S-shaped, the linear distance at blade both ends is not more than 0.05 mm.

2. The subminiature diameter S-shaped ball cutter of claim 1, wherein the cutting edge is wavy.

3. The subminiature diameter S-shaped ball cutter of claim 1, wherein a rake angle is formed between the second relief surface and the machined surface, the rake angle being 8-15 °.

4. The subminiature S-shaped ball cutter of claim 3, wherein the rake angle is 12 °.

5. The ultramicro-diameter S-shaped ball cutter according to claim 1, wherein the grinding process of the ball cutter is carried out by using a grinding wheel, the grinding wheel comprises a high-gloss grinding wheel, and the cutting edge is ground by the high-gloss grinding wheel.

6. The ultramicro diameter S-shaped ball cutter according to claim 5, wherein the second rear cutter face and the first rear cutter face are both polished by the highlight grinding wheel.

7. The ultramicro-diameter S-shaped ball cutter according to claim 5, wherein a controller is adopted to control the grinding wheel in the grinding process of the ball cutter, and the controller controls the grinding wheel to rotate in real time in the grinding process of the grinding wheel.

8. The ultramicro-diameter S-shaped ball cutter as claimed in claim 5, wherein a controller is adopted to control the rotation speed and feeding of the ball cutter during grinding of the ball cutter.

9. The ultramicro-diameter S-shaped ball cutter according to claim 8, wherein the ball cutter is ground by a high-rotating speed low-feeding mode.

10. The ultramicro-diameter S-shaped ball cutter according to claim 5, wherein the room temperature and the oil temperature used for grinding by the grinding wheel are controlled within the range of +/-0.2 degrees.