TWI419751B - Disposable ball mill - Google Patents

Description

Discard ball milling cutter

The present invention relates to a disposable ball milling cutter, and more particularly to a movable replacement wear blade for facilitating the implementation of a ball milling cutter.

Press, the milling machine is mainly a machine tool that rotates a milling cutter with several cutting edges and simultaneously moves the workpiece feed to cut the workpiece. For a small or mass production, the milling machine can be economically processed. The main machining projects include face milling, surface milling, groove milling, gear milling, and cam milling. According to the type of machining, there is a corresponding milling cutter design. If there is a face milling cutter suitable for milling planes, End mills for milling end faces or grooves, side milling cutters and milling cutters for heavy milling, and ball milling cutters for fine milling.

Referring to the fourth and fifth figures, the existing ball milling cutter (3) is integrally formed with a plurality of blades (32) arranged in a spherical shape mainly at the end of the blade body (31), and the circularly arranged blades are arranged. (32) Design to perform fine milling operation on the surface of the workpiece after machining. Since the ball milling cutter is mainly used for finishing machining, it requires extremely high machining precision. When the ball milling cutter wears, the user must grind. In order to restore the sharpness of the cutting edge and the appropriate cutting angle, the life of the milling cutter is extended. However, the cutting edge of the ball milling cutter has an arc shape and a certain angle of cutting, which is difficult when the grinding returns to the cutting state. For users who are good at grinding and refurbishing, it will also cost A considerable amount of time can return the ball milling cutter to the machinable state. For users who are not good at grinding and refurbishing, it often takes a lot of time to return the ball milling cutter to the machinable state. The knife is discarded and replaced, so that the cost of the tool is greatly increased. Moreover, the special grinding machine for grinding the ball milling cutter is also quite expensive, which causes the user of the ball milling cutter to be economically burdened.

The reason is that the present inventors have in view of the existing one-piece ball milling cutter, which is difficult to recover after wear, and has been assisted by the manufacturing and design experience and knowledge of the related fields for many years, and has been ingenuity for the existing ball. The milling cutter is updated and researched and improved in order to exert its higher practical efficiency.

The present invention is directed to a disposable ball milling cutter whose primary purpose is to provide a movable displacement wear blade for facilitating the implementation of a ball milling cutter for use.

In order to achieve the above-mentioned implementation, the inventors have developed a ball milling cutter as follows, which comprises a tool body and a plurality of blades; wherein: the tool body is convexly disposed on the end surface of the tool body and has a circular shape. Holding the block, and having a gap between the clamping blocks, and providing a locking hole in the clamping block, and locking the locking hole in the locking hole, and locking the locking member from the outside of the clamping block to the gap; The blade is a body having a blade portion, and the blade is disposed in a gap formed by the clamping block of the tool body, and the blade edge portion is oriented outward, and the locking member is locked by the clamping block. The lock is locked into the gap so that one end of the lock member is perpendicularly disposed against the end surface of the blade, and the blade is clamped together with the clamp block.

In this way, when the blade of the ball milling cutter wears, the fastener can be loosened to remove the worn blade to replace the new blade without the need to discard the entire ball milling cutter due to blade wear. Or it is time-consuming to grind damaged blades, and to purchase expensive ball milling cutters, etc., according to which, the company can facilitate the implementation of the use and cost savings and other substantial benefits.

<this invention>

(1)‧‧‧Tool body

(10) ‧‧‧ end face

(11)‧‧‧Clamping blocks

(111)‧‧‧flat surface

(112)‧‧‧Keyhole

(12) ‧ ‧ gap

(13)‧‧‧Lock Firmware

(2) ‧‧‧blade

(21) ‧ ‧ flat face

(22) ‧‧‧blade

(23) ‧‧‧ end face

<existing>

(3)‧‧‧Ball milling cutter

(31)‧‧‧Tools

(32)‧‧‧ Blades

First Figure: An exploded view of the present invention

Second picture: front view of the invention

Third drawing: side sectional view of the present invention

Figure 4: Existing perspective view

Figure 5: Existing side view

In order to make the technical means of the present invention and the effects thereof can be more completely and clearly disclosed, the following is a detailed description. Please refer to the disclosed drawings and drawings:

First, referring to the first figure, the discarded ball milling cutter of the present invention is composed of a cutter body (1) and a cutting edge (2); wherein: the cutter body (1) is in a cylindrical shape. The cutter body (1) has a plurality of clamping blocks (11) arranged in a circular shape on the flat end surface (10), and a gap (12) is interposed between the clamping blocks (11), and the clamping is performed. The block (11) has a flat surface (111) on one side of the gap (12), and a locking hole (112) in the clamping block (11). The locking hole (112) is a threaded hole and is locked. The hole (112) is locked with a locking piece (13), the locking piece (13) is a screw, and the locking piece (13) can be locked from the outside of the clamping block (11) to the gap (12); the cutting edge ( 2) is an entity consisting of two flat faces (21) at an angle of 90 degrees and an arcuate blade portion (22) disposed between the two flat faces (21), and The arcuate blade portion (22) is formed at an inclination angle, and the blade edge (2) is disposed in the gap (12) formed by the clamping block (11) of the tool body (1), and the blade edge (2) is curved. The blade portion (22) faces outward, and one of the flat faces (21) of the blade (2) is flatly attached to the end face (10) of the cutter body (1), and the other flat face (21) of the blade (2) is vertically abutted. One side end surface (23) of the adjacent cutting edge (2), and the locking member (13) locked by the locking hole (112) of the clamping block (11) to the gap (12) is perpendicularly disposed at the cutting edge ( The end face (23) of 2) is used to sandwich the blade (2) with the clamping block (11).

Accordingly, when assembling and using, please refer to the second and third figures together, and the blade (2) is placed in the gap (12) formed between the clamping blocks (11) of the tool body (1). And the arcuate edge portion (22) of the blade (2) faces outward, and a flat surface (21) of the blade (2) is flatly attached to the end surface (10) of the cutter body (1); The firmware (13) is locked from the outside of the lock hole (112) to the gap (12), and the lock (13) is locked to one end of the gap (12) to vertically abut against the end face (23) side of the blade (2) At this time, the other side of the end surface (2) of the blade (2) is pressed by the locking member (13), and is pressed against the flat surface (111) of the clamping block (11) to match the locking member (13). ) Jointly insert the lock on the leading edge of the blade (2); continue, put another blade (2) into the other gap (12) of the tool body (1), and then lock the lock (13) into another a locking hole (112) of the clamping block (11) for locking the leading edge of the other cutting edge (2) against the flat surface (111) of the adjacent clamping block (11) for clamping Block (11) jointly clamps the leading edge of the blade (2); At this time, the flat surface (21) of the other blade (2) not attached to the end surface (10) of the cutter body (1) is perpendicularly pressed against the end surface of the trailing edge of the adjacent blade (2) (23) On one side, the edge (23) of the cutting edge (2) is pressed to the flat surface (111) of the clamping block (11), and the trailing edge of the blade (2) is firmly clamped, and the blade is fixed. (2) The flat surface (21) presses the direction of the adjacent cutting edge (2) in a direction opposite to the direction in which the locking member (13) abuts the cutting edge (2), whereby the cutting edge (2) can be The front and rear edges are positioned and the blade (2) is firmly fixed to the tool body (1); then, the remaining blades (2) are sequentially placed in the gap (12) between the clamping blocks (11), and The blade (2) and the tool body (1) are fixed to each other by the mutual abutment between the locker (13) and the blade (2), and a circular arrangement is formed.

Here, after the roughing of the workpiece is completed, the ball milling cutter of the present invention can be used for fine milling to achieve good precision and surface roughness of the workpiece. When the ball milling cutter is worn for a period of time, the fastener can be released ( 13) Lock the blade (2) to remove the worn blade (2), and then replace the new blade (2) with the lock (13) fixed to the tool body (1) for The next time the fine milling is used, the user does not have to discard the entire ball milling cutter because of the wear of the ball milling cutter, and does not need to purchase an expensive ball milling cutter for grinding the damaged ball milling cutter. At the same time, the user does not need to spend extra time in order to grind the damaged ball milling cutter. Therefore, it is possible to effectively reduce the economic burden and the waste of working hours.

As can be seen from the above structures and embodiments, the present invention has the following advantages:

1. The discarding ball milling cutter of the invention effectively improves the ball milling of the existing integrated form The inconvenience of the knife must be time-consuming to grind after the blade wears, and the new blade can be directly replaced after the blade is worn, so that it is no longer time-consuming to grind the blade, thereby greatly saving the waste of working hours.

2. The discarding ball milling cutter of the present invention can easily replace the worn blade after the blade is worn, thereby solving the problem that the existing integrated ball milling cutter is difficult to grind and return to the machinable state after the blade is worn. The economic cost of the ball milling cutter must be discarded.

3. The discarding ball milling cutter of the present invention achieves the effect of restoring the milling ability of the ball milling cutter by replacing the worn cutting edge after the blade is worn, and is expensive to purchase after the blade is worn out compared with the existing integrally formed ball milling cutter. The ball milling cutter is specially repaired by a grinding machine, and the invention is designed to replace the blade structure, which is more economical.

In summary, the embodiments of the present invention can achieve the expected functions, and the specific structures disclosed therein have not been seen in similar products, nor have they been disclosed before the application, and have fully complied with the requirements and requirements of the Patent Law. If you apply for an invention patent in accordance with the law, you are welcome to review it and grant a patent.

(1)‧‧‧Tool body

(10) ‧‧‧ end face

(11)‧‧‧Clamping blocks

(111)‧‧‧flat surface

(112)‧‧‧Keyhole

(12) ‧ ‧ gap

(13)‧‧‧Lock Firmware

(2) ‧‧‧blade

(21) ‧ ‧ flat face

(22) ‧‧‧blade

(23) ‧‧‧ end face

Claims (4)

A discarding ball milling cutter comprises a cutter body (1) and a plurality of blades (2); wherein: the cutter body (1) is arranged in a circular shape around the end surface (10) of the cutter body (1). The clamping block (11) is clamped with a gap (12) between the clamping blocks (11), and the locking block (11) is provided with a locking hole (112) and locked in the locking hole (112). A locking fastener (13) is attached, and the locking member (13) is locked from the outside of the clamping block (11) to the gap (12), and the clamping block (11) of the cutter body (1) is placed in the gap. (12) One of the faces is formed as a flat surface (111), and the end surface (10) of the cutter body (1) is formed into a flat shape; the blade edge (2) is an entity having a blade portion (22), The blade (2) is composed of two flat faces (21) which are formed at an angle of 90 degrees and an arcuate blade portion (22) which is disposed between the two flat faces (21), and the blade (2) is set on the cutter body. (1) The gap (12) formed by the clamping block (11) is such that the blade portion (22) of the blade (2) faces outward, and the lock (13) is locked by the clamping block (11). The hole (112) is locked into the gap (12) such that one end of the locking piece (13) is perpendicularly abutted against the end surface (23) of the cutting edge (2), and the cutting edge (2) is clamped together with the clamping block (11) Locking, another flat surface (21) of the cutting edge (2) is attached to the end surface (10) of the cutter body (1), and the other flat surface (21) of the cutting edge (2) is perpendicularly disposed adjacent to the adjacent cutting edge ( 2) the end face (23), and the cutting edge (2) is clamped together with the clamping block (11), and the flat edge (21) of the cutting edge (2) is pressed against the direction of the adjacent cutting edge (2) and the fastener ( 13) The direction of the pressing blade (2) is in the opposite direction. The discarding ball milling cutter according to claim 1, wherein the cutter body (1) has a flat surface (111) on a surface of the gap (12). The discarding ball milling cutter according to claim 1, wherein the blade (2) is a flat surface (21) formed by two angles of 90 degrees and a curved edge disposed between the two flat surfaces (21) The department (22) is composed of. The discard ball milling cutter according to claim 1, wherein the lock hole (112) of the cutter body (1) is a threaded hole, and the lock (13) is a screw, and is threaded. The keyhole (112) is screwed to the screw.