Precise mechanical cutting tool head

Abstract

The utility model relates to the technical field of cutting tools, in particular to a precision mechanical cutting tool head which comprises a fixed base, a cutting head assembly is arranged in the fixed base, a drill bit is arranged on the cutting head assembly, scales are arranged on the drill bit, a cross-shaped fixing piece is arranged below the drill bit, the cross-shaped fixing piece is welded to the bottom of the drill bit, and the cross-shaped fixing piece is welded to the bottom of the drill bit. A drill handle is arranged at the bottom of the drill bit, a cross-shaped groove is formed in the drill handle, upward separation caused by too large stress is reduced to the maximum extent through cooperation of the cutting head assembly and the limiting stopper, the drill bit is further fixed through the fixing disc, the limiting stopper is specifically divided into a fixed block and a movable block, the fixed block is fixed to the adjusting sleeve in a welded mode and cannot move, and the movable block is fixed to the adjusting sleeve in a welded mode. The limiting groove of the fixed block is connected with the limiting block in a buckled mode, the movable block is fixed in a screw hole in the adjusting sleeve through a bolt, the limiting stopper is half-movable and half-fixed due to the fact that installation of the drill bit is not interfered by the limiting stopper, and the whole device is simple in structure and convenient to replace.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting tools, in particular to a precision mechanical cutting tool head. Background Art

[0002] In the process of mechanical manufacturing and processing, the cutting tool head is an important cutting component, and its performance directly affects the processing efficiency and quality. However, the traditional cutting tool head replacement process is often complicated and time-consuming, and there are problems such as inaccurate tool head positioning and unstable installation, which to a certain extent affects the continuity and stability of mechanical cutting processing. Therefore, the development of a convenient, fast and stable precision mechanical cutting tool head replacement technology is of great value to improving mechanical processing efficiency and reducing production costs. Utility Model Content

[0003] The main purpose of the utility model is to provide a precision mechanical cutting tool head to solve the problems proposed in the related art that the traditional cutting tool head replacement process is often complicated to operate, takes a long time, and has problems such as inaccurate tool head positioning and unstable installation, which to a certain extent affects the continuity and stability of mechanical cutting processing.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a precision mechanical cutting tool head is provided, including a fixed base, a cutting head assembly is arranged in the fixed base, a drill bit is arranged on the cutting head assembly, a scale is arranged on the drill bit, a cross fixing piece is arranged under the drill bit, the cross fixing piece is welded to the bottom of the drill bit, a drill handle is arranged at the bottom of the drill bit, a cross slot is arranged in the drill handle, a spring is arranged above the connection between the drill bit and the drill handle, and a fixing plate is arranged above the spring.

[0005] Furthermore, an adjustment sleeve is provided at the upper end of the fixed base, a screw hole is provided on the adjustment sleeve, a first external thread is provided below the adjustment sleeve, and a limiter is provided above the adjustment sleeve.

[0006] Furthermore, the limiter is divided into a fixed block and a movable block, the fixed block is provided with a limit groove, and the fixed block is provided with a first semicircular groove.

[0007] Furthermore, the fixed block is fixed on the adjusting sleeve by welding, the movable block is provided with a second semicircular groove, the movable block is provided with bolts, and the movable block is fixed by the bolts and the screw holes on the adjusting sleeve.

[0008] Furthermore, a connecting sleeve is provided below the adjusting sleeve, and a first internal thread and a second external thread are provided on the connecting sleeve. The connecting sleeve is threadably connected to the adjusting sleeve via the first external thread and the first internal thread.

[0009] Furthermore, a clamping sleeve is provided below the connecting sleeve, a second internal thread is provided on the clamping sleeve, and the connecting sleeve is threadedly connected to the clamping sleeve via a second external thread and a second internal thread.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] The cutting head assembly and the limiter work together to minimize upward detachment due to excessive force. The fixed plate further fixes the drill bit to strengthen the safety. The specific limiter is divided into a fixed block and a movable block. The fixed block is fixed to the adjusting sleeve by welding and cannot be moved. The limit groove of the fixed block is snap-connected with the limit block to prevent the drill bit from falling off during operation. The movable block is fixed to the screw hole on the adjusting sleeve by bolts. The reason why the limiter is half movable and half fixed is that the installation of the drill bit will not be interfered by the limiter, and the entire device has a simple structure and is easy to replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a split diagram of a cutting tool in a preferred embodiment of the utility model;

[0013] Figure 2 A cross-sectional view of a tool head in a preferred embodiment of the utility model;

[0014] Figure 3 This is a schematic diagram of the drill bit structure in a preferred embodiment of the utility model;

[0015] Figure 4 This is a schematic diagram of the structure of the limiter in the preferred embodiment of the utility model;

[0016] Illustration Description:

[0017] 1.Fix the base;

[0018] 2. Cutting head assembly; 21. Drill bit; 211. Scale; 212. Cross fixing piece; 22. Drill handle; 221. Cross slot; 23. Spring; 24. Fixing plate;

[0019] 3. Adjusting sleeve; 31. Screw hole; 32. First external thread;

[0020] 4. Connecting sleeve; 41. First internal thread; 42. Second external thread

[0021] 5. Clamping sleeve; 51. Second internal thread;

[0022] 6. Stopper; 61. Fixed block; 611. Stopper groove; 612. First semicircular groove; 62. Movable block; 622. Second semicircular groove; 623. Bolt;

[0023] 7. Limit block; DETAILED DESCRIPTION

[0024] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0025] See also Figure 1-Figure 4 As shown, the purpose of this embodiment is to provide a precision mechanical cutting tool head, including a fixed base 1, a cutting head assembly 2 is arranged in the fixed base 1, a drill bit 21 is arranged on the cutting head assembly 2, a scale 211 is arranged on the drill bit 21, a cross fixing piece 212 is arranged under the drill bit 21, the cross fixing piece 212 is welded to the bottom of the drill bit 21, a drill handle 22 is arranged at the bottom of the drill bit 21, a cross groove 221 is arranged in the drill handle 22, a spring 23 is arranged above the connection between the drill bit 21 and the drill handle 22, and a fixing plate 24 is arranged above the spring 23.

[0026] It should be noted that the cross fixing member 212 and the cross groove 221 are mutually engaged, and the cross fixing member 212 can be inserted into the cross groove 221 .

[0027] An adjusting sleeve 3 is disposed at the upper end of the fixed base 1, a screw hole 31 is disposed on the adjusting sleeve 3, and a first external thread 32 is disposed at the lower end of the adjusting sleeve 3;

[0028] A limiter 6 is provided above the adjusting sleeve 3, and the limiter 6 is divided into a fixed block 61 and a movable block 62. The fixed block 61 is provided with a limit groove 611, and the fixed block 61 is provided with a first semicircular groove 612. The fixed block 61 is fixed to the adjusting sleeve 3 by welding, and the movable block 62 is provided with a second semicircular groove 622. The movable block 62 is provided with a bolt 623, and the movable block 62 is fixed by the bolt 623 and the screw hole 31 on the adjusting sleeve 3.

[0029] A connecting sleeve 4 is provided below the adjusting sleeve 3, and a first internal thread 41 and a second external thread 42 are provided on the connecting sleeve 4. The connecting sleeve 4 is threadedly connected to the adjusting sleeve 3 through the first external thread 32 and the first internal thread 41. The connecting sleeve 4 and the adjusting sleeve 3 are threadedly connected to achieve threaded docking and disassembly between the two.

[0030] A clamping sleeve 5 is provided below the connecting sleeve 4, and a second internal thread 51 is provided on the clamping sleeve 5. The connecting sleeve 4 is threadedly connected to the clamping sleeve 5 through the second external thread 42 and the second internal thread 51, so as to achieve threaded docking and disassembly between the two.

[0031] It should be supplemented that a limit block 7 is provided above the drill bit 21 , and the limit block 7 and the limit groove 611 are matched and connected with each other.

[0032] It should be noted that the drill handle 22 and the clamping sleeve 5 are welded to ensure the stability of the drill bit 21 after installation.

[0033] Working principle:

[0034] Before the tool head works, the drill bit 21 is first installed and debugged, and the cutting head assembly 2 and the stopper 6 work together. A cross fixing piece 212 is provided at the lower end of the drill bit 21, and a cross groove 221 is provided inside the drill handle 22. The cross fixing piece 212 is inserted into the cross groove 221 for combined fixation. The spring 23 under the drill bit 21 buffers and supports the impact force brought by the drill bit 21 when working, and prevents it from detaching upward due to excessive force. The fixing plate 24 further fixes the drill bit 21 to strengthen the insurance, and the drill bit 21 is The stopper 6 prevents the drill bit 21 from disengaging upward during operation. Specifically, the stopper 6 is divided into a fixed block 61 and a movable block 62. The fixed block 61 is fixed to the adjusting sleeve 3 by welding and cannot be moved. The limit groove 611 of the fixed block 61 is snap-connected with the limit block 7 to prevent the drill bit 21 from falling off during operation. The movable block 62 is fixed in the screw hole 31 on the adjusting sleeve 3 by a bolt 623. The reason why the stopper 6 is half movable and half fixed is that the installation of the drill bit 21 will not be interfered by the stopper 6.

[0035] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A precision mechanical cutting tool head, comprising a fixed base (1), wherein a cutting head assembly (2) is arranged in the fixed base (1), characterized in that: The cutting head assembly (2) is provided with a drill bit (21), the drill bit (21) is provided with a scale (211), a cross fixing piece (212) is provided below the drill bit (21), the cross fixing piece (212) is welded to the bottom of the drill bit (21), a drill handle (22) is provided at the bottom of the drill bit (21), a cross groove (221) is provided in the drill handle (22), a spring (23) is provided above the connection between the drill bit (21) and the drill handle (22), and a fixing plate (24) is provided above the spring (23); An adjusting sleeve (3) is provided at the upper end of the fixed base (1), a screw hole (31) is provided on the adjusting sleeve (3), a first external thread (32) is provided below the adjusting sleeve (3), and a stopper (6) is provided above the adjusting sleeve (3); The limiter (6) is divided into a fixed block (61) and a movable block (62); the fixed block (61) is provided with a limit groove (611); and the fixed block (61) is provided with a first semicircular groove (612).

2. The precision mechanical cutting tool head according to claim 1, characterized in that: The fixed block (61) is fixed to the adjustment sleeve (3) by welding, the movable block (62) is provided with a second semicircular groove (622), the movable block (62) is provided with a bolt (623), and the movable block (62) is fixed by the bolt (623) and the screw hole (31) on the adjustment sleeve (3).

3. The precision mechanical cutting tool head according to claim 2, characterized in that: A connecting sleeve (4) is provided below the adjusting sleeve (3), and a first internal thread (41) and a second external thread (42) are provided on the connecting sleeve (4). The connecting sleeve (4) is threadably connected to the adjusting sleeve (3) via the first external thread (32) and the first internal thread (41).

4. The precision mechanical cutting tool head according to claim 3, characterized in that: A clamping sleeve (5) is provided below the connecting sleeve (4), a second internal thread (51) is provided on the clamping sleeve (5), and the connecting sleeve (4) is threadedly connected to the clamping sleeve (5) via a second external thread (42) and a second internal thread (51).

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