CN212704809U

CN212704809U - Equal-height tooth cutting tool

Info

Publication number: CN212704809U
Application number: CN202021638899.7U
Authority: CN
Inventors: 邓杰; 孙伟元; 张�杰; 张锵; 杜丽娟; 聂采顺; 赵鹏
Original assignee: Sichuan Jian'an Industrial Ltd
Current assignee: Sichuan Jian'an Industrial Ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-03-16
Anticipated expiration: 2030-08-07

Abstract

The utility model discloses a tooth cutter with equal height, which comprises a clamping part and a cutter body, wherein the top of the cutter body is a cutter point, and the cutter also comprises an auxiliary blade which extends from the cutter point to the clamping part; the auxiliary blade consists of a front cutting edge and a rear cutting edge, the front cutting edge is connected with the tool nose, and the rear cutting edge is connected with the clamping part; the included angle between the front cutting edge and the rear cutting edge is an obtuse angle. The utility model discloses a gear milling cutter improves, has increased one vice sword between the knife tip of current milling cutter to the clamping part, makes milling cutter possess the function of chamfering, can carry out the gear teeth top position simultaneously and carry out chamfering treatment in the milling tooth process of gear machining to can eliminate the gear teeth top and produce the bruise in subsequent production process, be favorable to improving finished product quality; and, adopt the utility model discloses carry out gear machining and need not increase the process of chamfer at last, reduced whole process time, improved whole machining efficiency, also reduced manufacturing cost.

Description

Equal-height tooth cutting tool

Technical Field

The utility model belongs to the technical field of machining cutter technique and specifically relates to a tooth cutter is cut to height tooth such as waiting.

Background

When the constant-height tooth system spiral bevel gear is machined in machining production, a milling cutter disc provided with a plurality of milling cutters is generally adopted for cutting machining, the process flow of tooth system is milling, deburring, heat treatment and grinding, because the process flow is long, the transfer process of parts is more, and the top position of the gear tooth is easy to generate bruise, the process of addendum chamfering is generally added at the last in gear manufacturing to eliminate the bruise, and the production cost is inevitably increased due to the addition of the processes.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: provided is a constant-height gear cutting tool which can perform chamfering processing on the tooth top of a gear while milling the gear.

For solving the technical problem the utility model discloses the technical scheme who adopts is: the equal-height tooth cutting tool comprises a clamping part and a tool body, wherein the top of the tool body is a tool tip, and the equal-height tooth cutting tool also comprises an auxiliary blade, and the auxiliary blade extends from the tool tip to the clamping part; the auxiliary blade consists of a front cutting edge and a rear cutting edge, the front cutting edge is connected with the tool nose, and the rear cutting edge is connected with the clamping part; the included angle between the front cutting edge and the rear cutting edge is an obtuse angle.

Further, the method comprises the following steps: the included angle between the rear cutting edge and the center line of the cutter body is 50 degrees.

Further, the method comprises the following steps: the included angle between the front cutting edge and the center line of the cutter body is 17.49 degrees +/-0.02 degrees.

Further, the method comprises the following steps: the included angle between the front cutting edge and the rear cutting edge is 148 degrees.

Further, the method comprises the following steps: the height of the auxiliary blade is higher than that of the tool nose, and the height of the auxiliary blade is gradually increased from the front cutting edge to the rear cutting edge.

The utility model has the advantages that: the utility model discloses a gear milling cutter improves, has increased one vice sword between the knife tip of current milling cutter to the clamping part, makes milling cutter possess the function of chamfering, can carry out the gear teeth top position simultaneously and carry out chamfering treatment in the milling tooth process of gear machining to can eliminate the gear teeth top and produce the bruise in subsequent production process, be favorable to improving finished product quality; and, adopt the utility model discloses carry out gear machining and need not increase the process of chamfer at last, reduced whole process time, improved whole machining efficiency, also reduced manufacturing cost.

Drawings

Fig. 1 is an isometric view of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a side view of the present invention;

FIG. 4 is a schematic view of the gear milling of the present invention;

labeled as: 100-clamping part, 200-cutter body, 210-cutter point, 300-auxiliary edge, 310-front cutting edge, 320-rear cutting edge, 400-gear, 410-tooth root and 420-tooth tip.

Detailed Description

In order to facilitate understanding of the present invention, the following description is further provided with reference to the accompanying drawings.

As shown in fig. 1 to 3, the utility model discloses an equal-height tooth cutter includes clamping part 100 and cutter body 200, and clamping part 100 is used for being connected fixedly with the facing cutter dish, and cutter body 200 fixes in the end department of clamping part 100. The top of the cutter body 200 is a tip 210. as shown in fig. 4, the tip 210 is used to cut a tooth root 410 during a gear milling process. The utility model discloses a solve the problem that gear tooth top 420 position produced the bruise easily, set up vice sword 300 between knife tip 210 and clamping part 100, vice sword 300 extends to clamping part 100 from knife tip 210, and vice sword 300 comprises preceding blade 310 and rear edge 320, and preceding blade 310 is connected with knife tip 210, and rear edge 320 is connected with clamping part 100, and vice sword 300 is whole and cutter body 200 structure as an organic whole. The included angle between front edge 310 and rear edge 320 should be set to an obtuse angle, and if the included angle between front edge 310 and rear edge 320 is a right angle or an acute angle, chamfering of tooth crest 420 cannot be achieved.

As shown in fig. 4, when the milling operation of the gear with equal height is performed, the cutter point 210 of the cutter body 200 cuts the tooth root 410 of the gear, the protruded portions at both sides of the tooth root 410 are tooth crests 420, the corner portions of the tooth crests 420 are in contact with the auxiliary blade 300, and the auxiliary blade 300 cuts the corner portions of the tooth crests 420, thereby realizing the chamfering treatment of the tooth crests 420, realizing the chamfering treatment of the tooth crests 420 simultaneously in the milling process, eliminating the need for a special chamfering process at the end, and having a positive promoting effect on reducing the production time, improving the production efficiency, and saving the production cost.

According to the processing requirement of the equal-height gear, the utility model discloses in set for the angle size of vice sword 300, as shown in fig. 2, contained angle alpha between rear edge 320 and the cutter body 200 central line is 50, contained angle beta between front edge 310 and the cutter body 200 central line is 17.49 degrees +/-0.02, contained angle gamma between front edge 310 and the rear edge 320 is 148.

As shown in fig. 3, if the bottom surface of the cutter body 200 is a reference surface, the height of the auxiliary blade 300 is higher than that of the cutting tip 210, the height of the auxiliary blade 300 is gradually increased from the front cutting edge 310 to the rear cutting edge 320, and the whole cutting edge is a slope surface, which meets the machining requirements of the gear.

Claims

1. Tooth cutter is surely geared to height such as, including clamping part (100) and cutter body (200), the top of cutter body (200) is knife tip (210), its characterized in that: further comprising a secondary edge (300), the secondary edge (300) extending from the tip (210) to the clamping portion (100); the auxiliary blade (300) consists of a front cutting edge (310) and a rear cutting edge (320), the front cutting edge (310) is connected with the knife tip (210), and the rear cutting edge (320) is connected with the clamping part (100); the included angle between the front cutting edge (310) and the rear cutting edge (320) is an obtuse angle.

2. The constant-height tooth cutting tool according to claim 1, wherein: the included angle between the rear cutting edge (320) and the central line of the cutter body (200) is 50 degrees.

3. The constant-height tooth cutting tool according to claim 1, wherein: the included angle between the front cutting edge (310) and the center line of the cutter body (200) is 17.49 degrees +/-0.02 degrees.

4. The constant-height tooth cutting tool according to claim 1, wherein: the included angle between the front cutting edge (310) and the rear cutting edge (320) is 148 degrees.

5. The constant-height tooth cutting tool according to claim 1, wherein: the height of the auxiliary blade (300) is higher than that of the tool nose (210), and the height of the auxiliary blade (300) is gradually increased from the front cutting edge (310) to the rear cutting edge (320).