Non-standard inner hole turning tool

Abstract

The utility model discloses a non-standard inner hole turning tool which comprises a blade body and a cutting tool bit, the cutting tool bit is welded to the outer end of the blade body, the blade body is inclined, the non-standard inner hole turning tool further comprises a tool bar, a transmission shaft is rotationally installed at the left end of the tool bar in a slotting mode, and the outer end of the transmission shaft is connected with the blade body in a penetrating mode. The rear end of the transmission shaft is connected with a driving mechanism. The non-standard inner hole turning tool is provided with a cutting angle, the cutting angle is just matched with the angle of an inner hole of a workpiece due to the fact that the position of the cutting angle is 45 degrees, the tool can be normally clamped, the angle does not need to be independently and manually swung, and practicability is better; interference of workpieces can be avoided during machining, so that machining is carried out, the later cutting efficiency of the blade body is improved, the cutting tool bit is arranged, and normal cutting machining can be carried out through the position of the cutting tool bit.

Description

Technical Field

[0001] The utility model relates to the technical field of internal hole turning tools, in particular to a non-standard internal hole turning tool. Background Art

[0002] A non-standard internal hole turning tool refers to a non-standard sized, shaped or functional internal hole turning tool customized according to the specific requirements of the internal hole of the workpiece to be machined. Such a tool is used for cutting and machining the internal hole in mechanical manufacturing, with high flexibility and adaptability, and can meet special machining requirements that cannot be completed by standard tools.

[0003] Because non-standard internal hole turning tools have advantages such as customization, high precision, high efficiency and diversity, they are applied when the machining requirements of the workpiece cannot be met by standard internal hole turning tools, such as when there are special requirements for the aperture, hole depth, hole wall roughness, etc. of the workpiece; when machining internal holes with complex shapes, such as internal holes with grooves, threads or other special structures; and when it is necessary to improve machining precision and efficiency, which can be achieved by customizing non-standard internal hole turning tools.

[0004] Most traditional workpiece materials are 316L stainless steel. When machining the internal hole position, due to the interference of the D25.5 diameter at the traditional machining position, and the conventional internal hole turning tool requires good rigidity and the two sides of the neck are made relatively wide, so the normal cutting machining of the workpiece cannot be carried out, and only a non-standard customized grooving tool can be used, which reduces the cutting practicability of the internal hole turning tool.

[0005] In order to overcome the above defects, in the new non-standard machining tool device of the prior art 1 (Chinese patent with application number CN201920778962.8 and application date May 28, 2019), by changing the round handle (except the clamping part) of the internal hole turning tool to an oval shape, both the strength required for the tool to machine the internal hole and the dimension for turning the reverse end face are reserved, and the purpose of realizing multiple machining of turning the internal hole, reverse end face and internal hole groove on one tool is achieved.

[0006] At the same time, in the tool of a non-standard machining internal hole turning tool machine of the prior art 2 (Chinese patent with application number CN201920142158.0 and application date January 28, 2019), it assists the user to debug the height of the tool handle and improve the installation efficiency; it solves the problems that the connection between the blade and the tool is prone to looseness, the space in the machine tool is small, and it is inconvenient to measure the height of the tool.

[0007] And in the tool of a non-standard machining internal hole turning tool machine tool in the prior art 3 (Chinese patent with application number CN202120011055.8 and application date January 4, 2021), the cooperation between the first clamping block and the second clamping block avoids the problem that the tool of the internal hole turning tool machine tool in the prior art does not have a corresponding stable clamping mechanism during use, resulting in easy shaking of the tool and affecting the machining effect of the workpiece. During the process of the fixture clamping the tool, the first clamping block and the second clamping block at both ends of the workbench respectively fit and clamp the fixture from both sides, and the fixture will not shift in position, ensuring the stability of the tool during operation;

[0008] Therefore, we proposed that the non-standard internal hole turning tool can well solve the above problems. Utility Model Content

[0009] The purpose of the present utility model is to provide a non-standard internal hole turning tool to solve the problem in the above background technology that conventional internal hole turning tools in the current market require good rigidity, and the two sides of the neck are made relatively wide, so normal cutting machining of workpieces cannot be carried out, and only non-standard groove cutters can be customized, reducing the cutting practicability of the internal hole turning tool.

[0010] To achieve the above purpose, the present utility model provides the following technical solution: A non-standard internal hole turning tool includes a blade body and a cutting tool head, wherein the cutting tool head is welded to the outer end of the blade body, and the blade body is in an inclined shape;

[0011] It further includes: a tool shank, a transmission shaft is rotatably installed in a groove at the left end of the tool shank, and the outer end of the transmission shaft is connected through to the blade body, and a driving mechanism is connected to the rear end of the transmission shaft.

[0012] Preferably, the blade body and the tool shank form a cutting angle, and the cutting angle is 45°, which fits the angle of the internal hole of the workpiece, enabling the tool to be properly clamped without the need to manually swing the angle separately.

[0013] Preferably, a first clearance groove and a second clearance groove are respectively formed on the left side and the bottom side outer sides of the blade body and the tool shank, which can avoid the interference of the workpiece during machining, thereby enabling machining.

[0014] Preferably, for the workpiece, a machining groove is opened on the inner side of the bottom of the workpiece, and the cutting tool head is attached to the outer side of the machining groove.

[0015] Preferably, the cutting tool head is made of high-speed steel material. By increasing the carbon content and vanadium content of the steel, the durability and cutting performance of the tool are significantly improved.

[0016] Preferably, the angle between the cutting tool head and the cutting plane is 10°. A larger back angle can reduce the cutting force and improve the cutting stability, but it will also reduce the strength of the tool.

[0017] Preferably, the workpiece is 316L stainless steel. Through appropriate cold working and heat treatment, higher strength and toughness can be obtained, which is suitable for some application scenarios with relatively large mechanical loads.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] (1) A cutting angle is provided. Since the position of the cutting angle is 45°, which just fits the inner hole angle of the workpiece, the tool can be normally clamped without the need for separate manual angle swinging, and the practicability is better.

[0020] (2) A first clearance groove and a second clearance groove are provided. Through the positions of the first clearance groove and the second clearance groove, interference from the workpiece can be avoided during processing, so that processing can be carried out, improving the cutting efficiency of the blade body in the later stage.

[0021] (3) A cutting tool head is provided. Through the position of the cutting tool head, normal cutting processing can be carried out. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view structural schematic diagram of the blade body and the cutting tool head of the present utility model;

[0023] Figure 2 It is a partial front view structural schematic diagram of the blade body and the tool bar of the present utility model;

[0024] Figure 3 It is a front sectional view structural schematic diagram of the blade body and the workpiece of the present utility model.

[0025] In the figure: 1. Blade body; 2. Cutting tool head; 3. Transmission shaft; 4. Tool bar; 5. Cutting angle; 6. First clearance groove; 7. Second clearance groove; 8. Workpiece; 9. Groove to be processed. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] The present utility model provides the following technical solutions:

[0028] In an embodiment, to solve the problem that the existing conventional blade body 1 requires good rigidity and the two sides of the neck are made relatively wide, so the normal cutting of the workpiece 8 cannot be processed, and only a non-standard groove cutter can be customized, reducing the cutting practicability of the blade body 1, the following is disclosed:

[0029] A blade body 1 and a cutting tool head 2, wherein the cutting tool head 2 is welded and arranged at the outer end of the blade body 1, and the blade body 1 is in an inclined shape;

[0030] It further includes: a tool shank 4, a transmission shaft 3 is rotatably installed in a groove at the left end of the tool shank 4, and the outer end of the transmission shaft 3 penetrates and is connected to the blade body 1, and a driving mechanism is connected to the rear end of the transmission shaft 3.

[0031] The blade body 1 and the tool shank 4 form a cutting angle 5, and the cutting angle 5 is 45°.

[0032] A first clearance groove 6 and a second clearance groove 7 are respectively formed on the left side and the bottom side outer sides of the blade body 1 and the tool shank 4, and...

[0033] A workpiece 8, a machining groove 9 is opened on the inner side of the bottom of the workpiece 8, and the cutting tool head 2 is attached and connected to the outer side of the machining groove 9.

[0034] The cutting tool head 2 is made of high-speed steel material.

[0035] The included angle between the cutting tool head 2 and the cutting plane is 10°.

[0036] The workpiece 8 is 316L stainless steel.

[0037] As Figures 1 - 3 shown, when normal cutting and machining of the inner hole of the workpiece 8 is required, only the blade body 1 installed at the outer end of the tool shank 4 needs to be placed against the inner side of the workpiece 8, and then the cutting tool head 2 arranged at the outer end of the blade body 1 is placed against the machining groove 9 opened on the inner side of the workpiece 8. Then, the driving mechanism drives the transmission shaft 3 to drive the blade body 1 to drive the cutting tool head 2 to perform cutting and machining on the machining groove 9 opened on the inner side of the workpiece 8. Moreover, since the position of the cutting angle 5 is 45° which just fits the inner hole angle of the workpiece 8, the tool can be normally clamped without the need for separate manual angle swinging, and the practicability is better. Also, due to the positions of the first clearance groove 6 and the second clearance groove 7, interference from the workpiece 8 can be avoided during cutting and machining, improving the later cutting efficiency of the blade body 1.

[0038] Contents not described in detail in this specification belong to the prior art well-known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A non-standard internal hole turning tool, comprising a blade body (1) and a cutting head (2), wherein the cutting head (2) is welded to the outer end of the blade body (1), and the blade body (1) is in an inclined shape; It is characterized in that Also includes: A knife rod (4) is provided, wherein a transmission shaft (3) is rotatably mounted on the left end of the knife rod (4), and the outer end of the transmission shaft (3) is penetrated and connected with a blade body (1), wherein the rear end of the transmission shaft (3) is connected with a driving mechanism.

2. The non-standard inner hole turning tool according to claim 1, characterized in that: The blade body (1) and the blade rod (4) form a cutting angle (5), and the cutting angle (5) is 45 degrees.

3. The non-standard inner hole turning tool according to claim 1, characterized in that: The blade body (1) and the blade rod (4) are respectively formed with a first avoidance groove (6) and a second avoidance groove (7) on the outer sides of the left side and the bottom side.

4. The non-standard inner hole turning tool according to claim 1, characterized in that: A workpiece (8), wherein a processing groove (9) is provided on the inner side of the bottom of the workpiece (8), and a cutting tool head (2) is fitted and connected to the outer side of the processing groove (9).

5. The non-standard inner hole turning tool according to claim 1, characterized in that: The cutting head (2) is made of high-speed steel material.

6. The non-standard inner hole turning tool according to claim 5, characterized in that: The angle between the cutting planes of the cutting bit (2) is 10°.

7. The non-standard inner hole turning tool according to claim 4, characterized in that: The workpiece (8) is made of 316L stainless steel.

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