CN102501042A - Method for machining bottom R of reverse taper end milling cutter - Google Patents

Abstract

The invention relates to a method for machining a bottom R of a reverse taper milling cutter. The method comprises the following steps of: 1) preparing a raw blank, namely leaving allowance in the directions of width and length of the milling cutter according to the requirement of a drawing of the reverse taper milling cutter, wherein in the integral appearance of the milling cutter, the front end is a cylinder and the rear end is a cone; 2) performing rough machining, namely 2.1) clamping by using a tip, and turning a front end face until light can be seen, so that the end face is used as a reference plane; 2.2) grinding the cylinder at the front end in a grinding mode, so that the diameter of an excircle is used as the diameter Rlarge of a large end; and 2.3) grinding a taper surface at the rear end in a grinding mode until the length of the cylinder is A; 3) cutting a formed grinding wheel by using a sample plate with the size which is the same as the bottom R; and 4) performing finish machining, namely allowing the formed grinding wheel to lean against two end corners of the reverse taper end milling cutter to ensure that a tangent point of a fillet coincides with an intersection point of the taper surface, so that the size requirement of the drawing can be ensured. By the method, the detection time and machining time are reduced greatly, and the production efficiency and quality of the machined products are improved.

Description

The processing method of end R in the anti-tapering slotting cutter

Technical field

The present invention relates to the processing method of end R in a kind of anti-tapering slotting cutter, be used for processing the processing method of the end R of anti-tapering slotting cutter.

Background technology

The anti-tapering slotting cutter that has end R is a kind of instrument that is widely used in equipment manufacture industries such as machinery, aviation and automobile, and as shown in Figure 1, the design feature that has the anti-tapering milling cutter product of end R is that the head of single tapering milling cutter is R value and the tangent transition of anti-tapering; Normal conditions are that the R fillet is carried out preliminary working; Then in the fine finishining process, can produce annealing effect, reduce cutter hardness, change the interior tissue of cutter; The cutter quality is descended, can't reach the demand of production; Another kind of form processing is to add man-hour in the turning of roughing operation, and the big end size value of reserving anti-tapering slotting cutter of harmless quantification brings a lot of troubles and the hidden danger of quality for the finish turning operation, and efficient reduces greatly, can't guarantee the quality of product simultaneously.

Summary of the invention

The technical problem that the present invention will solve provides the processing method of end R in a kind of anti-tapering slotting cutter, and this processing method has reduced the time of detecting and processing greatly, has improved the production efficiency of converted products and the quality of product.

For overcoming the above problems, concrete technical scheme of the present invention is following: the processing method of end R in a kind of anti-tapering slotting cutter is characterized in that may further comprise the steps:

1) the woollen preparation: according to the drawing requirement of anti-tapering slotting cutter, the width and the length direction of milling cutter left surplus, its monnolithic case is the front end cylinder, and the rear end is a cone;

2) roughing:

2.1) use top clamping, the turning front end face sees that light gets final product, and makes end face become datum level;

2.2) with the mode of grinding, the cylinder of grinding front end makes cylindrical directly be outside diameter R _Greatly

2.3) with the mode of grinding, the tapering face of grinding rear end is A up to cylindrical length;

3) model with end R size cuts forming grinding wheel;

4) fine finishining:, guarantee that the point of contact of fillet overlaps with tapering hand-deliver point, can guarantee the dimensional requirement of drawing with the angle, two ends of forming grinding wheel by anti-tapering slotting cutter.

The processing method of end R does not process the R value of such milling cutter profile in this anti-tapering slotting cutter when roughing turner operation, so that when finishing step, can control the big end size and the tolerance of such milling cutter accurately.

Description of drawings

Fig. 1 is the structural representation of end R in the anti-tapering slotting cutter.

Fig. 2 is rough machined partial schematic diagram.

Fig. 3 is accurately machined partial schematic diagram.

Wherein 1, end face; 2, cylinder periphery; 3, tapering face; 4, the point of contact of end R.

The specific embodiment

As shown in Figure 1, the processing method of end R in a kind of anti-tapering slotting cutter, R=4mm wherein is characterized in that may further comprise the steps:

1) the woollen preparation: according to the drawing requirement of anti-tapering slotting cutter, the width and the length direction of milling cutter left surplus, its monnolithic case is the front end cylinder, and the rear end is a cone;

2) as shown in Figure 2, roughing:

2.1) use top clamping, the turning front end face sees that light gets final product, and makes end face become datum level;

2.2) with the mode of grinding, the cylinder of grinding front end makes cylindrical directly be outside diameter R _Greatly

2.3) with the mode of grinding, the tapering face of grinding rear end is A up to cylindrical length, wherein the value of R radius, i.e. A=4mm at the bottom of the A=;

3) model with end R size cuts forming grinding wheel;

4) as shown in Figure 3, fine finishining:, guarantee that the point of contact of end R fillet overlaps with tapering hand-deliver point, can guarantee the dimensional requirement of drawing with the angle, two ends of forming grinding wheel by anti-tapering slotting cutter.

Claims (1)

1. the processing method of end R in the anti-tapering slotting cutter is characterized in that may further comprise the steps:

1) the woollen preparation: according to the drawing requirement of anti-tapering slotting cutter, the width and the length direction of milling cutter left surplus, its monnolithic case is the front end cylinder, and the rear end is a cone;

2) roughing:

2.1) use top clamping, the turning front end face sees that light gets final product, and makes end face become datum level;

2.2) with the mode of grinding, the cylinder of grinding front end makes cylindrical directly be outside diameter R _Greatly

2.3) with the mode of grinding, the tapering face of grinding rear end is A up to cylindrical length, wherein the value of R radius at the bottom of the A=;

3) model with end R size cuts forming grinding wheel;

4) fine finishining:, guarantee that the point of contact of fillet overlaps with tapering hand-deliver point, can guarantee the dimensional requirement of drawing with the angle, two ends of forming grinding wheel by anti-tapering slotting cutter.

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