Rapid cutting end mill

Abstract

The utility model discloses a quick cutting end mill, which relates to the technical field of milling cutters, and comprises a tool bit and a tool bar, the tool bar is arranged at the lower end of the tool bit in an abutting mode, a wedge-shaped groove is formed in one end, close to the tool bar, of the tool bit, a wedge-shaped block is clamped in the wedge-shaped groove, the upper side of the wedge-shaped block is fixedly connected with the tool bar, and the lower side of the wedge-shaped block is fixedly connected with the tool bar. Grooves are formed in the ends, close to each other, of the tool bit and the tool bar, an arc-shaped blocking piece is clamped between the grooves in the two sides, and limiting mechanisms for limiting movement of the arc-shaped blocking piece are arranged at the ends, close to each other, of the tool bit and the tool bar. The cutter bar and the cutter head are designed in a split mode, and the quick detaching mechanism is arranged between the cutter head and the cutter bar, so that the cutter head can be quickly detached under the condition that the cutter bar is not detached, time and labor are saved, and working efficiency can be greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to milling cutter technical field, concretely relates to a quick cutting end mill. BACKGROUND

[0002] End mill is a kind of commonly used cutter for metal cutting processing, is widely used in mechanical manufacturing, mould processing and other industries, in actual processing process, due to different processing needs, often need to frequently change tool bit.

[0003] Traditional end mill mostly adopts the integral design of tool bar and tool bit, when replacing tool bit, the whole end mill needs to be disassembled from processing equipment, and the operation process is complicated, consumes a lot of time and manpower, which not only increases the labor intensity of workers, but also leads to too long equipment downtime, seriously affects production efficiency, in addition, in some processing scenes, tool bit is prone to wear or damage, if tool bit cannot be replaced in time and quickly, it will affect processing quality and precision, and further affect product quality and production progress. SUMMARY

[0004] In view of the above problems existing in the prior art quick cutting end mill, the utility model is provided.

[0005] Therefore, the utility model aims at providing a quick cutting end mill, which solves the problems in the background art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A kind of quick cutting end mill, including tool bit and tool bar, the tool bar is arranged at the lower end of tool bit, the end of tool bit close to tool bar is provided with wedge slot, the inside of wedge slot is clamped with wedge block, the upper side of wedge block is fixedly connected with tool bar, the end close to tool bit and tool bar is provided with recess, arc baffle is clamped between the recess of both sides, the end close to tool bit and tool bar is provided with limiting mechanism that limits the movement of arc baffle.

[0008] Preferably, the limiting mechanism includes fixed ring and movable ring, two fixed rings are respectively fixedly sleeved on the end close to tool bar and tool bit, outer wall of fixed ring is provided with external thread, movable ring is sleeved on the outer wall of fixed ring, inner wall of movable ring is provided with internal thread, movable ring is threadedly sleeved with fixed ring, the middle end outer wall of arc baffle is fixedly provided with arc convex strip, the inner wall of the end close to arc baffle of both movable rings is in abutment with the outer wall of arc convex strip.

[0009] Preferably, the wedge block and tool bar are integrally formed.

[0010] Preferably, the outer part of movable ring is provided with anti-skid lines.

[0011] Preferably, the outer surface of the tool head is coated with a hard coating, which is a TiAlN coating.

[0012] Preferably, the tool rod is a high-strength alloy steel rod.

[0013] In the above technical solution, the technical effects and advantages provided by the utility model are as follows:

[0014] 1. The utility model discloses a tool rod and a tool head are designed as a split type, and a quick release mechanism is arranged between the tool head and the tool rod, the wedge-shaped block and the wedge-shaped groove are clamped and matched, and the arc-shaped stop sheet and the limiting mechanism are arranged, so that the tool head can be quickly replaced without disassembling the tool rod, time and labor are saved, the working efficiency is greatly improved, the equipment downtime is reduced, and the labor intensity of workers is reduced.

[0015] 2. The outer surface of the tool head is coated with a TiAlN hard coating, which can significantly improve the hardness, wear resistance and oxidation resistance of the tool head, effectively resist wear and oxidation during the cutting process, prolong the service life of the tool head, ensure the machining quality and precision, and reduce the influence of tool head wear on product quality. DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the utility model, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0017] Figure 1 A structure diagram of a quick cutting end mill is provided.

[0018] Figure 2 The internal structure diagram of Figure 1 .

[0019] Figure 3 The internal structure diagram of Figure 2 .

[0020] Figure 4 The structure enlarged diagram of the partial A part in Figure 2 .

[0021] Mark explanation:

[0022] 1, tool head; 2, tool rod; 3, wedge-shaped groove; 4, wedge-shaped block; 5, groove; 6, arc-shaped stop sheet; 7, fixed ring; 8, movable ring; 9, external thread; 10, internal thread; 11, arc-shaped convex strip. CONCRETE IMPLEMENTATION

[0023] In order to make the technical personnel in the art better understand the technical scheme of the utility model, the utility model will be described in further detail below with reference to the drawings.

[0024] The utility model discloses a quick cutting end mill.

[0025] With reference to Figures 1-4 A quick cutting end mill, including cutter head 1 and tool shank 2, tool shank 2 is set to the lower end of cutter head 1, the outer surface of cutter head 1 is coated with hard coating, and the hard coating is TiAlN coating, which can improve the hardness, wear resistance and oxidation resistance of the cutter head, prolong the service life of the cutter, the tool shank 2 is high-strength alloy steel pole, and it is more solid and durable, the end of cutter head 1 close to tool shank 2 is provided with wedge slot 3, wedge block 4 is clamped in the inside of wedge slot 3, the upper side of wedge block 4 is fixedly connected with tool shank 2, wedge block 4 is integrally formed with tool shank 2, which improves the connecting strength of wedge block 4 and tool shank 2, and the end close to cutter head 1 and tool shank 2 is provided with recess 5, and arc baffle 6 is clamped between the recess 5 on both sides.

[0026] With reference to Figures 1-4 The end close to cutter head 1 and tool shank 2 is provided with limiting mechanism for limiting the movement of arc baffle 6, the limiting mechanism includes fixed ring 7 and movable ring 8, two fixed rings 7 are fixedly sleeved on the end close to cutter head 1 and tool shank 2 respectively, the outer wall of fixed ring 7 is provided with external thread 9, movable ring 8 is sleeved on the outer wall of fixed ring 7, the inner wall of movable ring 8 is provided with internal thread 10, movable ring 8 is threadedly sleeved with fixed ring 7, the middle end outer wall of arc baffle 6 is fixedly provided with arc convex strip 11, the inner wall of the end close to both sides movable ring 8 is in abutment with the outer wall of arc convex strip 11, the outer portion of movable ring 8 is provided with anti-skid lines, which increases the friction between hands and movable ring 8 and prevents slipping as much as possible when rotating.

[0027] The utility model discloses a replaceable cutting head, comprising a cutting rod 2, a cutting head 1 and an arc baffle 6, wherein the cutting head 1 is sleeved on the cutting rod 2, and the arc baffle 6 is arranged between the cutting head 1 and the cutting rod 2, and the arc baffle 6 is provided with a groove 5.

[0028] The above has only described certain exemplary embodiments of the utility model through the way of illustration, and it is needless to say that the described embodiments can be modified in various different ways without departing from the spirit and scope of the utility model for ordinary skilled person in the art. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection of the utility model claims.

Claims

1. A quick cutting end mill comprising a head (1) and a shank (2), characterized in that, The cutter bar (2) is arranged at the lower end of the cutter head (1), the cutter head (1) is provided with a wedge-shaped groove (3) at the end close to the cutter bar (2), the wedge-shaped groove (3) is provided with a wedge-shaped block (4), the upper side of the wedge-shaped block (4) is fixedly connected with the cutter bar (2), the end close to the cutter bar (2) of the cutter head (1) and the cutter bar (2) is provided with a recess (5), the recess (5) is provided with an arc-shaped baffle (6), and the end close to the cutter bar (2) of the cutter head (1) and the cutter bar (2) is provided with a limiting mechanism for limiting the movement of the arc-shaped baffle (6).

2. The solid carbide quick-point end mill according to claim 1, wherein, The limiting mechanism comprises a fixed ring (7) and a movable ring (8), the two fixed rings (7) are fixedly sleeved at the end close to the cutter bar (2) and the cutter head (1), respectively, the outer wall of the fixed ring (7) is provided with an external thread (9), the movable ring (8) is sleeved on the outer wall of the fixed ring (7), the inner wall of the movable ring (8) is provided with an internal thread (10), the movable ring (8) is threadedly sleeved with the fixed ring (7), the middle end of the arc-shaped baffle (6) is provided with an arc-shaped convex strip (11), and the inner wall of the end close to the movable ring (8) on the two sides is in abutment with the outer wall of the arc-shaped convex strip (11).

3. The solid carbide quick-point end mill according to claim 1, wherein, The wedge-shaped block (4) and the cutter bar (2) are integrally formed.

4. The solid carbide quick-point end mill according to claim 2, wherein, The outer wall of the movable ring (8) is provided with anti-skid lines.

5. The solid, indexable, quick-pointing, ball nose end mill according to claim 1, wherein, The outer surface of the cutter head (1) is coated with a hard coating, and the hard coating is a TiAlN coating.

6. The solid, indexable, quick-pointing, ball nose end mill according to claim 1, wherein, The cutter bar (2) is a high-strength alloy steel rod.

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