Elbow cutter

Abstract

The utility model discloses an elbow cutter, which belongs to the technical field of machining, and comprises a cutter body, the cutter body comprises a cutter bar which is arranged at the front end of the cutter body, is bent at an obtuse angle and is narrower than a cutter handle and a circular blade which is horizontally arranged at the top end of the cutter bar, and edges of the cutter handle and the cutter bar are on the same straight line. According to a to-be-machined groove-shaped structure combined with a field numerical control machine tool cutter table form, the profiling elbow cutter is designed, when the groove-shaped structure is machined, the cutter adopts axial transverse handle type clamping, the overall rigidity of the cutter is improved, the cutter bar part is designed to be in an obtuse angle bending mode, and interference is avoided. By designing and optimizing a profiling machine clamping tool, efficient machining of G-shaped grooves is achieved, and the efficiency is improved by more than three times.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of machining, specifically relates to a elbow tool. BACKGROUND

[0002] Some roll bodies require G-shaped groove type on both sides of the drawing, such as Figure 5 As shown, or some equipment needs to process similar groove type, and the specific G-shaped groove cannot be processed by the conventional straight extension type, elbow radial extension type end face groove processing tool due to the 10mm difference between the groove bottom and the radial size of the roll neck and the 45mm axial depth. UTILITY MODEL CONTENT

[0003] The utility model needs to solve the technical problem of providing an elbow tool which can more conveniently process groove types such as G-shaped groove.

[0004] To achieve the above-mentioned purpose, the utility model adopts the technical scheme that

[0005] An elbow tool comprises a tool body, the tool body comprises a tool rod which is obtusely curved and has a width smaller than the tool body and is arranged at the front end of the tool body, and a circular blade which is horizontally arranged at the top end of the tool rod.

[0006] The utility model technical scheme is further improved in that the tool rod part is provided with a 3-degree clearance angle, and the width of the tool rod gradually decreases by 3mm from top to bottom.

[0007] The utility model technical scheme is further improved in that the obtuse angle of the tool rod part is 115 degrees, and the longitudinal section of the blade is an inverted trapezoid.

[0008] The utility model technical scheme is further improved in that a tool groove is arranged at the top end of the tool rod, and a gasket and a blade are arranged in the tool groove.

[0009] The utility model technical scheme is further improved in that the blade is fixed on the tool rod by a lever clamping mode, and comprises a pressing bolt arranged in the middle threaded hole of the tool rod and a lever arranged at the blade head part.

[0010] The utility model technical scheme is further improved in that the tool rod is provided with an L-shaped lever at the end part, one end of the L-shaped lever penetrates through the gasket and the blade, and the other end extends to below the pressing bolt.

[0011] The utility model technical scheme is further improved in that the outer angle of the obtusely curved tool rod is a circular arc.

[0012] Due to the adoption of the above technical scheme, the utility model has the following technical progress:

[0013] The present application designs a profiling elbow cutter according to the groove structure to be machined in combination with the form of a numerical control machine tool tool rest on site, when the groove structure is machined, the cutter adopts axial transverse handle type clamping, improves the overall rigidity of the cutter, the cutter bar part is designed as an obtuse angle bending, interference is avoided, and the insert is machined by turning by using a numerical control insert RCMX160600. Through the design and optimization of the profiling machine tool holder, efficient machining of the "G" type groove is realized, and the efficiency is improved by more than 3 times. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a top view of the elbow cutter of the utility model;

[0015] Figure 2 is a side view of the elbow cutter of the utility model;

[0016] Figure 3 is a partial perspective view of the elbow cutter of the utility model;

[0017] Figure 4 is a schematic view of the insert lever clamping mode of the utility model;

[0018] Figure 5 is a schematic view of a roller to be machined and a G type groove;

[0019] Among them, 1, cutter body, 2, cutter bar, 3, insert, 4, gasket, 5, L-shaped lever, 6, compression bolt, 7, G type groove. DETAILED DESCRIPTION

[0020] The utility model will be further described in detail in combination with embodiments:

[0021] As shown in Figure 1 , 2 , an elbow cutter, comprising a cutter body 1, the cutter body 1 includes the cutter bar 2 of the obtuse angle bending and the width less than the cutter handle arranged at the front end of the cutter body 1 and the circular insert 3 horizontally installed at the top end of the cutter bar 2, the cutter handle is the clamping part, the width of the cutter bar 2 part is less than the cutter handle, and the G type groove 7 is better processed. The cutter bar 2 and the cutter handle part are integrally formed, and the edge of the cutter bar 2 and the edge of the cutter handle are on the same straight line.

[0022] The cutter bar 2 part is provided with a 3-degree clearance angle, that is, the width of the cutter bar 2 gradually decreases by 3mm from top to bottom, the obtuse angle of the cutter bar 2 part is 115 °, and the longitudinal section of the insert 3 is inverted trapezoidal, specifically, the insert can be machined by turning by using a numerical control insert RCMX160600. This design can avoid interference when the G type groove is machined.

[0023] A specific embodiment, the width of the cutter bar 2 part near the cutter head part is 14.5mm, the length of the whole cutter bar 2 part is 50+1mm, and the vertical distance from the highest point of the insert 3 of the complete cutter to the cutter handle is 13+1mm.

[0024] A cutting groove is formed on the top of the upper end of the cutting bar 2, and a spacer 4 and a cutting blade 3 are sequentially installed on the cutting groove. The spacer is used to prevent the cutting body from being worn out, and can be replaced if damaged.

[0025] As shown in Figure 4 , the cutting blade 3 is fixed on the cutting bar 2 by a lever clamping method, including a pressing bolt arranged in the middle threaded hole of the cutting bar 2 and a lever arranged in the cutting head part. The cutting bar 2 is provided with an L-shaped lever 5 at the end, and one end of the L-shaped lever 5 passes through the spacer 4 and the cutting blade 3, and the other end extends below the pressing bolt 6.

[0026] In a preferred embodiment, the outer angle of the obtuse angle curved shape of the cutting bar 2 is a circular arc, as shown in Figure 3 .

[0027] During processing, the handle part is clamped on the machine tool, and the cutting bar 2 and the cutting head part can be deep into the groove. The obtuse angle curved design of the cutting bar can avoid the influence of the convex part of the G-shaped groove.

Claims

1. A bend tool comprising a tool body (1), characterised in that: The cutter body (1) comprises a bluntly curved cutter bar (2) with a width less than that of the cutter handle arranged at the front end of the cutter body (1) and a circular cutter blade (3) horizontally arranged at the top end of the cutter bar (2), and the edges of the cutter handle and the cutter bar (2) are on the same straight line.

2. A bend tool according to claim 1, characterised in that: The cutter bar (2) is partially provided with a 3-degree clearance angle, and the width of the cutter bar (2) gradually decreases by 3mm from top to bottom.

3. A bend tool according to claim 1, wherein: The blunt angle of the cutter bar (2) is 115°, and the longitudinal section of the cutter blade (3) is an inverted trapezoid.

4. A bend tool according to claim 3, wherein: A cutter groove is arranged on the top end of the cutter bar (2), and a gasket (4) and a cutter blade (3) are arranged on the cutter groove.

5. A bend tool according to claim 4, wherein: The cutter blade (3) is fixed on the cutter bar (2) by a lever clamping mode, comprising a pressing bolt arranged in a threaded hole in the middle of the cutter bar (2) and a lever arranged at the cutter head part.

6. A bend tool according to claim 5, wherein: An L-shaped lever (5) is arranged at the end of the cutter bar (2), one end of the L-shaped lever (5) penetrates through the gasket (4) and the cutter blade (3), and the other end extends below the pressing bolt (6).

7. A bend tool according to claim 1, wherein: The outer angle of the bluntly curved cutter bar (2) is a circular arc.

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