KR20190002083U - How to machining Multi-Abutment - Google Patents

Abstract

Multi-abutments used for overdenture in computer numerical control (CNC) automatic lathes are first machined from the jujube and placed at a fixed angle. A workpiece including an angle portion that requires turning at an angular height center with metal properties and shapes similar to that of a multi-abutment using titanium material, in which the angle portion is sub-axially and subsequently simultaneously machined into and out of the feed. It is about how to be turned.

Description

How to manufacture multi abutments {How to machining Multi-Abutment}

The present invention is a turning centering around the angular height center (19) of the angle (14) of the multi-abutment used as a core part for the overdenture (implant denture) in a computer numerical control (CNC) automatic lathe. (Lathe machining) It is about a processing method.

As the benefits of overdenture emerged, the quality of the multi-abutment, which is a key part of it, also became an important factor.

The general angle abutment 11 turns the angle part 14 using a macro program in a computer numerical control automatic lathe. The turning bit is revolved about the main axis as the turning bite, keeping the center stepwise (11) .The program calculates the circular starting point and the end point and the radius values by the tangent of the angle part. It is a continuous drawing method. Thus, the side 15 of the machined part does not cause an angle change. Turning is performed when the side 16 such as the multi abutment 12 forms a right angle with the center of height 19 of the angle (16). It is impossible to do.

Therefore, the end mill work using the multi-axis automatic lathe of the computer numerical control lathe is a solution.The end milled surface is somewhat rough and uneven compared with the turned surface, which does not meet the characteristics of the multi-abutment requiring precision. You may not.

Traditionally, cuttings of different shapes, such as multi-abutments, are primarily secondary work by making chucks in a suitable shape, such as by electric discharge machining, so that the angular height center 19 of the part to be turned coincides with the rotation center of the machining equipment. Used for mechanical purposes. However, this is a manual form that requires a person to repeatedly open and close the chuck, and then insert and remove the chuck. Smaller cuttings, such as multi-abutments, do not have the proper equipment to cope with it, and therefore use a computer numerical control lathe. Since this is not a hand-operated device, there are inconveniences in the work, but most of all, it is only an unstable chucking operation, so that a phenomenon such as the surface of the cutting material is printed on the inner wall of the chuck.

In order to solve this problem, in the computer numerical control lathe, bend the multi abutment which is only machined on the main axis at the proper angle and position it at the proper angle. The angle part is to be turned in the same way as the machining on the sub spindle.

The multi abutment eliminates the phenomenon of stable chucking during operation, and batch processing is possible from one computer automatic lathe to angle turning, thus avoiding manual labor. The use of a mill makes the surface of the machining somewhat rough and uneven, which makes it possible to replace the method using the multi-axis function with insufficient parts.

1 is an angle portion of a general angle abutment and multi abutment.
2 shows a state in which the primary abutment is completed 20 on the main shaft of the multi-abutment.
3 is a shape in which the bending dedicated bar mounted on an arbitrary holder of the multi abutment completed the primary processing is transferred and bent to position the angle.
4 shows a front view and a stereoscopic view of the sub-axis chuck 300 at an angular feed position coincided with the multi abutment 30 which is primarily machined and positioned at an appropriate angle.
5 illustrates a state in which the sub-axis chuck is in the primary processed multi abutment.
6 shows a state in which the primary abutted multi abutment is cut from the material 1000.
Fig. 7 shows that the turning of the angle portion of the multi abutment is completed 60 on the sub axis.
Figure 8 shows the finished product to the inner processing of the multi abutment.

When the multi-abutment is first processed in the main shaft (20), the milling operation for the bent portion is positioned at a certain angle (Fig. 3) so as to form a smooth concave curve shape based on the center of the material (1000) at an appropriate position. )

Then, when the bending bar 100 attached to an arbitrary tool holder approaches and presses a certain part of the multi abutment, the milled part is bent and a certain angle position is formed on the multi abutment machined primarily on the spindle. .

Sub-axes are then transported on the same angular position line and are cut off from the workpiece 1000 with primary abutment and multiple abutments positioned at a certain angle (FIG. 6).

The cut is made using an end mill mounted on any holder with spindle stop, since the spindle and sub-axes are not at the same center position, so no rotational cutting of the axis with a normal bite is possible.

Some of the multi-abutment position errors that may have occurred while bending the multi-abutment are precisely discharged to the same shape and angular position as the sub-axes chuck 300 is the first machined multi-abutment. The tension and the tension of the milled part 21 are solved by each action.

An angle requiring turning of an angular height center (19) with metal properties and form similar to that of a multi-abutment in a computer numerically controlled automatic lathe followed by a second turning operation on the subspindle, furthermore a multi-abutment using titanium material. A method for manufacturing a multi abutment, comprising a method for turning an angle portion of a workpiece including a portion.

11: typical angle abutment
12: multi abutment
13: Angle part of general angle abutment
14: Angle part of the multi abutment
15: Angled machining side part of general angle abutment
16: Angled side face of multi abutment
17: Angle machining direction of common angle abutments
18: Angle machining direction of multi abutment
20: Multi-abutment is first processed
21: Milled part to bend primary abutment multi abutment
30: Angled primary abutment with multi abutment
51: chucked part
52: Angle part to be turned
60: Finished multi abutment
100: dedicated bar for bending
200: guide bushing of a computer numerically controlled automatic lathe
300: sub spindle chuck of automatic computerized numerical control lathe
500: main spindle chuck of automatic CNC lathe
1000: material (bar)

Claims (1)

An angle part of a cutting including an angle part which requires turning 18 of an angular height center 19 having a metal property and shape similar to that of a multi abutment in a computer numerically controlled automatic lathe, and also a multi abutment using titanium material. In the multi-abutment manufacturing method comprising a method of turning,

When the multi-abutment is first processed in the main shaft (20), the milling operation for the bent portion is positioned at a certain angle (Fig. 3) so as to be smoothly concave and curved based on the center of the material (1000) at an appropriate position (21). ),
Then, when the bending bar 100 attached to an arbitrary tool holder approaches and presses a certain part of the multi abutment, the milled part is bent and a certain angle position is formed on the multi abutment machined primarily on the spindle. ,
Sub-axes are then transported on the same angular position line, cut off from the material 1000 with multiple abutments, and exit.
In the computer numerically controlled lathe, the secondary turning operation is carried out on the subspindles of the angular height center 19 having a metal property and a shape similar to that of the multi abutment, and further, the multi abutment using titanium material. A method for producing a multi-abutment, comprising a method for turning an angle portion of a workpiece including an angle portion that requires turning (18).

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