Blade for mechanically clamped cutter capable of improving impact resistance

Abstract

The utility model belongs to the technical field of mechanically-clamped cutters, and particularly discloses a blade for a mechanically-clamped cutter capable of improving impact resistance, which comprises a cutter body, a blade seat and a blade, a groove A is arranged at the left end of the cutter body, and the blade seat is arranged in the groove A; a groove B is formed in the left end of the blade seat, and a blade is arranged in the groove B; the included angle between the upper end face of the cutting edge of the blade and the horizontal plane is a; according to the blade, the cutting edge angle of the cutting edge is increased, the impact resistance of a cutter is improved, the service life of the blade is prolonged, and the machining cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of clamping tools, and particularly relates to a blade for a clamping tool with improved impact resistance. Background Art

[0002] With the increasing application of numerical control machine tools in the machining industry year by year, the use of clamping tools is becoming more and more common; there are various types of clamping tools commonly used in CNC lathes, among which the external turning tool is the most common one; during the cutting process of the external turning tool, the cutting edge is the main cutting edge for cutting, and the upper end face of the common cutting edge slopes upward, and the cutting edge is relatively sharp (as Figure 5 ); this design is beneficial to the cutting of cylindrical workpieces. However, when machining a workpiece with a hexagonal cross-section, since the cutting is interrupted cutting, the impact force on the blade is relatively large, especially the cutting edge below the tool tip. And the material of the blade is generally tungsten molybdenum alloy, and the impact resistance of the blade itself is relatively weak; when cutting hexagonal materials, the cutting edge below the tool tip is extremely easy to be damaged, reducing the service life of the blade and increasing the processing cost. Content of the Utility Model

[0003] Aiming at the problems existing in the background art, the utility model provides a blade for a clamping tool with improved impact resistance.

[0004] To achieve the above object, the utility model adopts the following technical solutions: A blade for a clamping tool with improved impact resistance, comprising a tool body, a blade seat and a blade. A groove A is provided at the left end of the tool body, and a blade seat is provided in the groove A; a groove B is provided at the left end of the blade seat, and a blade is provided in the groove B; the included angle between the upper end face of the cutting edge of the blade and the horizontal plane is a.

[0005] An installation groove A is provided at the corner of the blade seat and the groove A.

[0006] An installation hole A is provided on the upper end face of the blade seat.

[0007] The blade is a parallelogram, and an installation hole B is provided at the center of the upper end face of the blade.

[0008] The upper end face of the cutting edge of the blade slopes downward, and the included angle a is equal to 2°.

[0009] Advantages of the utility model: The utility model provides a blade for a clamping tool with improved impact resistance. The blade increases the edge angle at the cutting edge, improves the impact resistance performance of the tool itself, increases the service life of the blade, and reduces the processing cost. Description of the Drawings

[0010] Figure 1 It is a top view of the utility model.

[0011] Figure 2This is the front view of the present utility model.

[0012] Figure 3 This is the top view of the blade.

[0013] Figure 4 This is the enlarged view of the tool tip at direction A.

[0014] Figure 5 This is the enlarged view of the tool tip of the prior art.

[0015] In the figure: 1 is the tool body, 2 is the blade seat, 3 is the blade, 11 is the mounting groove A, 21 is the mounting hole A, 31 is the mounting hole B, 32 is the tool tip, and 33 is the cutting edge. Specific embodiments

[0016] Next, the technical solution of the present utility model will be clearly and completely described in conjunction with the accompanying drawings of the specification. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments; based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0017] The following further elaborates on the specific embodiments of the present utility model in conjunction with the drawings: A blade for a machine - clamped tool for improving impact resistance includes a tool body 1, a blade seat 2, and a blade 3. A groove A is provided at the left end of the tool body 1, and a blade seat 2 is provided in the groove A; an installation groove A11 is provided at the corner of the blade seat 2 and the groove A. The installation groove A11 is an arc - shaped groove, and the function of the installation groove A11 is to facilitate the disassembly and installation of the installation groove A11; an installation hole A21 is provided on the upper end surface of the blade seat 2. After the screw passes through the installation hole A21, the blade seat 2 can be fixed in the installation groove A11; the number of installation holes A21 depends on the size of the blade seat 2; a groove B is provided at the left end of the blade seat 2, and a blade 3 is provided in the groove B; the blade 3 is a parallelogram, and a mounting hole B31 is provided at the center of the upper end surface of the blade 3. After the screw passes through the mounting hole B31, the blade 3 can be fixed in the groove B of the blade seat 2; the upper end surface of the cutting edge 33 of the blade 3 is inclined downward, and the included angle between the upper end surface of the cutting edge 33 of the blade 3 and the horizontal plane is a; the included angle a is equal to 2°; through multiple practices, when the included angle a is equal to 2°, the use effect is better. If necessary, the angle value of the included angle a can also be changed.

[0018] The present utility model changes the included angle between the upper end surface of the cutting edge 33 and the horizontal plane, aiming to increase the edge angle at the cutting edge 33, thereby improving the impact - resistance performance of the tool itself; during actual use, since the edge angle is a negative angle, the chips during cutting will flow out between the workpiece and the cutting edge, and it is very easy for the chips to wind around the workpiece; therefore, the present utility model is only limited to processing some specific workpieces, such as the hexagonal cylinder proposed in this background technology.

[0019] The usage process of the present utility model is as follows: When machining a workpiece with a hexagonal cylinder as the raw material, first install the clamping tool of this machine on the tool holder, and install the blade seat 2 on the tool body 1, and fix it with screws. Then install the blade 3 on the blade seat 2 and fix it with screws; start the machine tool for cutting processing; during the processing, if the blade 3 is damaged, the blade 3 can be removed with a special tool for replacement; when the processing is completed, if it is changed to a common cylindrical processing material, the blade seat 2 and the blade 3 can be removed as a whole, and the common blade seat 2 and blade 3 can be replaced, and then the processing can be carried out.

[0020] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

[0021] The parts not detailed in the present utility model are the prior art.

Claims

1. A cutting insert for a mechanical clamping tool for improving impact resistance, comprising a tool body (1), a cutting insert seat (2) and a cutting insert (3), characterized in that: A groove A is provided at the left end of the tool body (1), and a blade seat (2) is arranged in the groove A; a groove B is provided at the left end of the blade seat (2), and a blade (3) is arranged in the groove B; the angle between the upper end surface of the cutting edge (33) of the blade (3) and the horizontal plane is a.

2. The insert for a clamped tool for improving impact resistance according to claim 1, characterized in that: An installation groove A (11) is provided at the corner between the blade seat (2) and the groove A.

3. The insert blade for a clamping tool for improving impact resistance according to claim 1, characterized in that: An installation hole A (21) is provided on the upper end surface of the blade seat (2).

4. The indexable insert for a machine clamp tool for improving impact resistance according to claim 1, wherein: The blade (3) is a parallelogram, and an installation hole B (31) is provided at the center of the upper end surface of the blade (3).

5. The insert for a machine - clamped tool for improving impact resistance according to claim 1, wherein: The upper end surface of the cutting edge (33) of the blade (3) is inclined downward, and the angle a is equal to 2°.

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