Blind hole machining tool

Abstract

The utility model discloses a blind hole machining cutter which comprises a cutter body, the front end of the cutter body is detachably and fixedly connected with a cutter main body through a screw, one end of the front end of the cutter main body and the other end of the rear end of the cutter main body are respectively provided with a cutting body, and a through hole is formed in the position, close to the cutting body at the rear end of the cutter main body, of the cutter body. The cutting body at the rear end of the cutter main body is positioned at the through hole; a tool nose part and a blade part are arranged at the front end of the cutting body, and the blade part is obliquely arranged; the length of the cutting body is set to be A, the thickness of the cutting body is set to be B, and the maximum cutting depth of the cutting body is set to be C. According to the blind hole machining cutter, through the structural matching design of the cutter body and the cutting body, although the cutter cannot be fed completely like an end face groove cutter, blind holes can be machined inwards in a segmented mode, the blind hole machining cutter is suitable for machining stepped holes and blind holes, the inner hole machining capacity of a boring cutter is improved, tipping during machining of the inner holes, especially the blind holes, is avoided, and the machining efficiency is improved. The performance of a common boring cutter is enhanced, and the practicability is better.

Description

Technical Field

[0001] The utility model relates to the technical field of turning tool tools, in particular to a blind hole processing tool. Background Art

[0002] Ordinary boring tools have higher strength among various internal hole processing tools. End face groove tools are specially used for end face grooves but are not strong enough, and sharp knives are even worse.

[0003] Traditional boring tools cannot drill holes on the end face of a workpiece like face groove cutters, and their drilling speed is slow and their efficiency is low. Therefore, the present application proposes a blind hole processing tool to provide a new technical solution to solve the above-mentioned technical problems. Utility Model Content

[0004] Based on this, it is necessary to provide a blind hole processing tool to address the above technical problems. Through the structural coordination design of the tool body and the cutting body, although the device cannot feed the tool completely like an end face slot cutter, it can process blind holes inward in sections. It is suitable for processing step holes and blind holes, and improves the ability of boring tools to process inner holes, avoiding chipping of the blade when processing inner holes, especially blind holes. The performance of ordinary boring tools is enhanced and the practicality is improved.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A blind hole machining tool is used for end face machining or blind hole machining of a workpiece.

[0007] The blind hole processing tool specifically comprises:

[0008] A knife body, wherein the front end of the knife body is detachably fixedly connected to the knife body by screws, one end of the front end of the knife body and the other end of the rear end of the knife body are both provided with cutting bodies, a through hole is provided at a position of the knife body close to the cutting body at the rear end of the knife body, and the cutting body at the rear end of the knife body is located at the position of the through hole; a knife tip portion and a blade portion are provided at the front end of the cutting body, and the blade portion is arranged obliquely;

[0009] The length of the cutting body is set to A, the thickness of the cutting body is set to B, and the maximum cutting depth of the cutting body is set to C.

[0010] As a preferred embodiment of the blind hole processing tool provided by the utility model, the tool body is arranged in a diamond shape, the cutting body is located at the acute angle of the tool body, the acute angle of the tool body is 80° and the obtuse angle of the tool body is 100°.

[0011] As a preferred embodiment of the blind hole machining tool provided by the utility model, the end face of the tool body is inclined, and the cutting body and the end face of the tool body have the same inclination angle; the inclination angle of the tool body is 7°.

[0012] As a preferred implementation of the blind hole machining tool provided by the utility model, the bottom of the cutting body is configured to be in an arc shape, and the angle of the arc is 0.15 to 0.25 mm.

[0013] As a preferred implementation of the blind hole machining tool provided by the utility model, the included angle between the inclination of the blade portion of the cutting body and the inclination of the top surface of the cutting body is 7°.

[0014] As a preferred implementation of the blind hole machining tool provided by the utility model, the cross section of the cutting body is set to be an inverted trapezoid, and the angle between the two sides of the cutting body is 14°.

[0015] As a preferred implementation of the blind hole machining tool provided by the utility model, the tool tip is arc-shaped, and the cutting end angle close to the tool body is set to be arc-shaped.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The blind hole processing tool provided by the utility model, through the structural coordination design of the tool body and the cutting body, makes the device unable to feed the tool completely like an end face slotting tool, but can process the blind hole inward in sections, is suitable for processing step holes and blind holes, improves the ability of boring tools to process inner holes, avoids chipping of the blade when processing inner holes, especially blind holes, and enhances the performance of ordinary boring tools and improves practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the scheme in the utility model, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the overall structure of a blind hole machining tool provided by the utility model;

[0020] Figure 2 A structural side view of the tool body and cutting body of the blind hole processing tool provided by the utility model;

[0021] Figure 3 This is a structural front view of the tool body and cutting body of the blind hole processing tool provided by the utility model;

[0022] Figure 4 A top view of the structure of the main body and cutting body of the blind hole processing tool provided by the utility model;

[0023] Figure 5 This is an enlarged top view of the structure of the cutting body of the blind hole machining tool provided by the utility model;

[0024] Figure 6 A comparison diagram of the blind hole machining tool provided by the utility model and the traditional boring tool.

[0025] The markings in the figure are as follows:

[0026] 1. Knife body; 2. Cutting body; 3. Knife tip; 4. Blade. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0028] As described in the background art, conventional boring tools cannot drill holes on the end face of a workpiece like end face slotting tools, and the drilling speed is slow and the efficiency is low.

[0029] In order to solve this technical problem, the utility model provides a blind hole processing tool, which is used for end face processing or blind hole processing of a workpiece.

[0030] Specifically, please refer to Figure 1-Figure 3 , blind hole processing tools specifically include:

[0031] The front end of the knife body is detachably fixedly connected with the knife body 1 by screws, one end of the front end of the knife body 1 and the other end of the rear end of the knife body 1 are both provided with a cutting body 2, a through hole is opened at the position of the cutting body 2 near the rear end of the knife body 1, and the cutting body 2 at the rear end of the knife body 1 is located at the position of the through hole; the front end of the cutting body 2 is provided with a knife tip 3 and a blade 4, and the blade 4 is inclined;

[0032] The length of the cutting body 2 is set to A, the thickness of the cutting body 2 is set to B, and the maximum cutting depth of the cutting body 2 is set to C.

[0033] The blind hole processing tool provided by the utility model, through the structural coordination design of the tool body 1 and the cutting body 2, makes it possible that although the device cannot completely feed the tool like an end face groove, it can process the blind hole inward in sections, and is suitable for processing step holes and blind holes, improving the ability of boring tools to process inner holes, avoiding chipping of the blade when processing inner holes, especially blind holes, and enhancing the performance of ordinary boring tools and improving practicality.

[0034] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0035] Embodiment 1:

[0036] Please refer to Figure 1-Figure 5 , a blind hole machining tool, comprising:

[0037] The knife body, the front end of the knife body is detachably fixedly connected with the knife body 1 by screws, one end of the front end of the knife body 1 and the other end of the rear end of the knife body 1 are both provided with a cutting body 2, a through hole is provided at the position of the cutting body 2 near the rear end of the knife body 1, and the cutting body 2 at the rear end of the knife body 1 is located at the position of the through hole; wherein the knife body 1 is arranged in a rhombus shape, and the cutting body 2 is located at the acute angle of the knife body 1, the acute angle of the knife body 1 is 80°, and the obtuse angle of the knife body 1 is 100°. wherein the end face of the knife body 1 is arranged in an inclined manner, and the inclination angle of the cutting body 2 is the same as that of the end face of the knife body 1; the inclination angle of the knife body 1 is 7°.

[0038] The front end of the cutting body 2 is provided with a tip portion 3 and a blade portion 4, and the blade portion 4 is inclined; the tool body 1 and the blade portion 4 maintain a certain angle to reduce the height difference between the blade portion 4 and the tip portion 3 to avoid the phenomenon of chipping when processing blind holes.

[0039] The length of cutting body 2 is set to A, the thickness of cutting body 2 is set to B, and the maximum cutting depth of cutting body 2 is set to C

[0040] Among them, A is the length of one-third of the end face of the tool body 1, B is 5 mm, and C is the removable value from the cutting position of the cutting body 2 to B.

[0041] It can be seen that ordinary tools will overcut and directly break, and even affect the accuracy of the machine tool. After the second application is modified, the tool has increased the overcutting ability, effectively reducing the probability of accidents. Of course, it cannot exceed the distance C.

[0042] Since the tool in this application can process blind holes, it can of course also be used as a drill. The only difference is the tool path. G72 can be used to process from large to small, with the x-axis end point slightly less than twice B. Alternatively, G74 path layered processing from large to small will have better results.

[0043] Without affecting normal processing, the end face slot cutter and inner hole end face sharp cutter are used to achieve better results when processing blind holes and step holes.

[0044] The principle of the tool in the present application is consistent with that of the end face groove cutter, making it a boring tool, which is similar to the end face groove cutter but only a weakened version. It cannot feed the tool exactly like the end face groove cutter, but can process blind holes inward in sections, and the cutting speed is higher; when using g72 when processing step holes and blind holes, the cutting depth and cutting speed are faster; as for compared with before the modification, the cutting depth is increased, and the normal cutting amount of the tool in the present application after the modification is sufficient, and the shallow groove minimizes the impact on the tool strength, making it versatile in processing inner holes.

[0045] Embodiment 2:

[0046] The blind hole machining tool provided in Example 1 is further optimized, specifically, as follows: Figure 2 As shown, the bottom of the cutting body 2 is set to be an arc shape, and the angle of the arc is 0.15-0.25 mm, which ensures the strength of the tool and can also increase the x-direction tool speed.

[0047] Embodiment 3:

[0048] The blind hole machining tool provided in Example 1 is further optimized, specifically, as follows: Figure 3 As shown, the cross section of the cutting body 2 is set to be an inverted trapezoid, the angle between the two sides of the cutting body 2 is 14°, and the inclination angle between the blade portion 4 of the cutting body 2 and the top surface of the cutting body 2 is 7°.

[0049] Embodiment 4:

[0050] The blind hole machining tool provided in Example 1 is further optimized, specifically, as follows: Figure 5 As shown, the tool tip 3 is arc-shaped, and the end angle of the cutting body 2 close to the tool body 1 is set to be arc-shaped. The two arc transitions effectively increase the single cutting depth during roughing and semi-finishing when processing the end face of the inner hole. For example, using the g72 path, the tool speed can be increased and the cutting depth can be increased when processing blind holes. This tool can be used when processing difficult-to-process materials such as high-temperature alloys, ordinary drills, and U drills cannot drill.

Claims

1. A blind hole machining tool, characterized in that: include: A knife body, wherein the front end of the knife body is detachably fixedly connected to a knife body (1) by means of screws, one end of the front end of the knife body (1) and the other end of the rear end of the knife body (1) are both provided with a cutting body (2), a through hole is provided at a position of the cutting body (2) near the rear end of the knife body (1), and the cutting body (2) at the rear end of the knife body (1) is located at the position of the through hole; a knife tip portion (3) and a blade portion (4) are provided at the front end of the cutting body (2), and the blade portion (4) is arranged obliquely; The length of the cutting body (2) is set to A, the thickness of the cutting body (2) is set to B, and the maximum cutting depth of the cutting body (2) is set to C; A is the length of one third of the end face of the blade body 1, B is 5 mm, and C is the removable value from the cutting position of the cutting body (2) to B.

2. The blind hole machining tool according to claim 1, characterized in that: The knife body (1) is arranged in a rhombus shape, and the cutting body (2) is located at the acute angle of the knife body (1). The included angle of the acute angle of the knife body (1) is 80°, and the included angle of the obtuse angle of the knife body (1) is 100°.

3. The blind hole machining tool according to claim 1, characterized in that: The end face of the knife body (1) is arranged to be inclined, and the cutting body (2) and the end face of the knife body (1) have the same inclination angle; the inclination angle of the knife body (1) is 7°.

4. The blind hole machining tool according to claim 1, characterized in that: The bottom of the cutting body (2) is arranged in an arc shape, and the angle of the arc is 0.15 to 0.25 mm.

5. The blind hole machining tool according to claim 1, characterized in that: The included angle between the inclination of the blade portion (4) of the cutting body (2) and the inclination of the top surface of the cutting body (2) is 7°.

6. The blind hole machining tool according to claim 1, characterized in that: The cross section of the cutting body (2) is arranged to be an inverted trapezoid, and the angle between the two sides of the cutting body (2) is 14°.

7. The blind hole machining tool according to claim 1, characterized in that: The blade tip (3) is arc-shaped, and the end angle of the cutting body (2) close to one end of the blade body (1) is arranged to be arc-shaped.

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