CN219211652U

CN219211652U - Dovetail groove turning tool

Info

Publication number: CN219211652U
Application number: CN202223199805.2U
Authority: CN
Inventors: 程林法
Original assignee: Hangzhou Delangman Machinery Co ltd
Current assignee: Hangzhou Delangman Machinery Co ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-06-20
Anticipated expiration: 2032-11-30

Abstract

The utility model discloses a dovetail groove turning tool which comprises a tool handle and a blade assembled at the front end of the tool handle, wherein the tool handle is connected with the blade through a bolt; the utility model discloses a knife handle, including handle of a knife, the handle of a knife front end has offered the wedge groove that holds the blade, the wedge groove includes first groove face, second groove face and third groove face, the blade includes the blade main part, blade main part both sides are equipped with first knife face, second knife face and third knife face respectively, through third knife face transitional coupling between first knife face and the second knife face. According to the utility model, the whole cutter is assembled in a modularized way, the cutter is only required to be replaced and installed when in use, the cutter is fixed in the wedge-shaped groove at the front end of the cutter handle through the matching of the bolt, the thread groove and the limiting hole, the fixing structure is simple, the cutter is convenient for workers to install and replace, the working efficiency can be effectively improved, meanwhile, the cost is low, and when one end of the cutter is damaged, the cutter is detached, and the other end of the cutter is replaced.

Description

Dovetail groove turning tool

Technical Field

The utility model relates to the technical field of turning tools, in particular to a dovetail groove turning tool.

Background

The dovetail groove is a practical mechanical mechanism, and the groove wall of the dovetail groove is of a trapezoid structure, so that the movement precision is high and stable when the dovetail groove performs mechanical relative movement. The dovetail groove is often matched with the trapezoidal guide rail for use, so that the dovetail groove can play a role in guiding and supporting.

However, the dovetail groove type cannot be directly turned and formed by a common cutter due to the design of the trapezoid groove and the roughness of Ra=1.6 μm or less. At present, the general processing method adopts a welded straight-groove type blade for turning, and the welded straight-groove type blade is manually sharpened to form a cutter because of an undetachable structure, and once the blade is worn, the blade cannot be replaced, so that the whole cutter needs to be replaced, and the cost is higher.

Disclosure of Invention

The utility model aims at: in order to solve the technical problem that the existing integrated tool is not easy to replace after the blade is worn in the background art, the dovetail groove turning tool is provided.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the dovetail groove turning tool comprises a tool handle and a blade assembled at the front end of the tool handle, wherein the tool handle is connected with the blade through a bolt;

the front end of the cutter handle is provided with a wedge-shaped groove for accommodating a cutter blade, the wedge-shaped groove comprises a first groove surface, a second groove surface and a third groove surface, the cutter blade comprises a cutter blade main body, two sides of the cutter blade main body are respectively provided with a first cutter surface, a second cutter surface and a third cutter surface, and the first cutter surface and the second cutter surface are in transitional connection through the third cutter surface;

the first blade surface positioned on one side of the blade body is contacted with the first groove surface, the second blade surface adjacent to the first blade surface is contacted with the second groove surface, and the third blade surface positioned on the other side of the blade body is contacted with the third groove surface.

As a further description of the above technical solution:

the three groove surfaces of the wedge-shaped groove sequentially comprise a vertical surface, a first inclined surface and a second inclined surface, wherein the first inclined surface and the second inclined surface gradually incline outwards of the wedge-shaped groove, the cutter surface gradually inclines downwards towards the center of the cutter blade, and the inclined cutter surface is contacted with the second inclined surface.

As a further description of the above technical solution:

the first inclined plane inclination angle is larger than the second inclined plane inclination angle.

As a further description of the above technical solution:

the first groove surface and the second groove surface are in transitional connection through a first opening groove and are used for accommodating adjacent edges of the first cutter surface and the second cutter surface.

As a further description of the above technical solution:

the limiting hole is formed in the center of the front middle of the blade main body, the groove surface at the bottom of the wedge-shaped groove is provided with a thread groove, the limiting hole is coaxially arranged with the wedge-shaped groove, and the bolt is matched and connected with the limiting hole and the thread groove.

As a further description of the above technical solution:

the blade further comprises blade tips arranged at two ends of the blade body, and the two blade tips are symmetrical relative to the center axis of the limiting hole.

As a further description of the above technical solution:

the second groove surface and the third groove surface are in transitional connection through a second open groove and are used for accommodating the tool nose.

As a further description of the above technical solution:

the knife handle is divided into a left hand and a right hand according to the positions of the wedge-shaped grooves.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

1. according to the utility model, the whole cutter is assembled in a modularized way, the cutter is only required to be replaced and installed when in use, the cutter is fixed in the wedge-shaped groove at the front end of the cutter handle through the matching of the bolt, the thread groove and the limiting hole, the fixing structure is simple, the cutter is convenient for workers to install and replace, the working efficiency can be effectively improved, meanwhile, the cost is low, and when one end of the cutter is damaged, the cutter is detached, and the other end of the cutter is replaced.

2. In the utility model, when turning is carried out, the blade is stressed, if the blade is directly fixed on the cutter handle, the blade is stressed to rotate, so that the bolt is loosened, and the blade is unstable.

Drawings

Fig. 1 shows a schematic perspective view of a dovetail turning tool according to an embodiment of the present utility model;

fig. 2 shows a schematic diagram of an insert structure of a dovetail turning tool according to an embodiment of the present utility model;

FIG. 3 shows a schematic view of a shank structure of a dovetail turning tool provided in accordance with an embodiment of the present utility model;

FIG. 4 illustrates a schematic top view of a dovetail turning tool provided in accordance with an embodiment of the present utility model;

FIG. 5 illustrates a schematic top view of an insert of a dovetail turning tool provided in accordance with an embodiment of the present utility model;

FIG. 6 illustrates a schematic top view of a shank of a dovetail turning tool provided in accordance with an embodiment of the present utility model;

FIG. 7 illustrates a schematic bottom view of an insert of a dovetail turning tool provided in accordance with an embodiment of the present utility model;

fig. 8 shows an enlarged schematic view of a junction between a shank and a blade of a dovetail turning tool according to an embodiment of the present utility model.

Legend description:

1. a knife handle; 101. wedge-shaped grooves; 1011. a first groove surface; 1012. a second groove surface; 1013. a third groove surface; 10111. a first inclined surface; 10112. a second inclined surface; 10113. a vertical surface; 102. a thread groove; 103. a first open slot; 104. a second open slot; 2. a blade; 21. a blade body; 211. a first blade surface; 212. a second blade surface; 213. a third tool face; 22. a knife tip; 23. a limiting hole; 3. and (5) a bolt.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-8, the present utility model provides a technical solution: the utility model provides a dovetail turning cutter, including handle of a knife 1 and the blade 2 of assembly at its front end, handle of a knife 1 divides left and right hand two kinds according to the difference in wedge groove 101 position, blade 2 includes dovetail and straight flute according to turning type, connect through bolt 3 between handle of a knife 1 and the blade 2, specifically, spacing hole 23 has been seted up on the positive middle part central point of blade main part 21, threaded slot 102 has been seted up on wedge groove 101 bottom groove face, and spacing hole 23 and wedge groove 101 coaxial line set up, bolt 3 and spacing hole 23 and threaded slot 102 cooperation are connected, the cutter wholly adopts the modularization equipment to form, during the use only need change and install blade 2 can, and blade 2 passes through bolt 3, threaded slot 102 and spacing hole 23's cooperation is fixed in the wedge groove 101 of handle of a knife 1 front end, fixed knot constructs comparatively simply, make things convenient for the workman to install and change blade 2, can effectually improve work efficiency, and the cost is lower, and when blade 2 one end knife tip 22 is impaired, the blade 2 is dismantled, the other end 22 is used.

As shown in fig. 1 and 8, the front end of the tool holder 1 is provided with a wedge-shaped groove 101 for accommodating the blade 2, the wedge-shaped groove 101 comprises a first groove surface 1011, a second groove surface 1012 and a third groove surface 1013, the groove surfaces of the three wedge-shaped grooves 101 sequentially comprise a vertical surface 10113 from bottom to top, a first inclined surface 10111 and a second inclined surface 10112 which gradually incline outwards of the wedge-shaped groove 101, the tool surface gradually inclines downwards from top to bottom towards the center of the blade 2, and the inclined tool surface is contacted with the second inclined surface 10112, wherein the inclination angle of the first inclined surface 10111 is larger than that of the second inclined surface 10112 so as to facilitate taking and placing of the blade 2;

as shown in fig. 2, the blade 2 includes a blade body 21, the blade 2 further includes knife tips 22 disposed at two ends of the blade body 21, and the two knife tips 22 are symmetrical about a central axis of the limiting hole 23, two sides of the blade body 21 are respectively provided with a first knife surface 211, a second knife surface 212 and a third knife surface 213, and the first knife surface 211 and the second knife surface 212 are in transitional connection through the third knife surface 213;

as shown in fig. 1 and 4, the first surface 211 on one side of the insert body 21 is in contact with the first groove surface 1011, the second surface 212 adjacent to the first surface 211 is in contact with the second groove surface 1012, and the third surface 213 on the other side of the insert body 21 is in contact with the third groove surface 1013;

specifically, when turning, blade 2 atress, if directly fix blade 2 on handle of a knife 1, then blade 2 atress rotates for bolt 3 becomes flexible, leads to the unstable condition of blade 2, consequently, in this cutter, through groove surface and knife face contact, restriction blade 2 rotates, improves the connection stability of blade 2 and handle of a knife 1, guarantees the normal work of cutter.

Specifically, as shown in fig. 1 and fig. 4, the first groove surface 1011 and the second groove surface 1012 are in transitional connection through the first open groove 103, and are used for accommodating adjacent edges of the first tool surface 211 and the second tool surface 212, so as to prevent the edge of the insert 2 from being damaged by stress during turning, and the second groove surface 1012 and the third groove surface 1013 are in transitional connection through the second open groove 104, and are used for accommodating the tool tip 22, so as to prevent the spare tool tip 22 from being damaged by stress during turning.

Working principle: during the use, during operation, firstly, the dovetail straight groove part needing to be machined is finely machined to the required size of a drawing by using a universal excircle straight groove cutter, then the left half part of the dovetail is machined and formed by using a right hand cutter of the cutter through a 24-degree inclined-feed turning method, then the left half part of the dovetail is machined and formed by using a left hand cutter of the cutter through a 24-degree inclined-feed turning method, the whole device is assembled in a modularized mode, during the use, only the blade 2 needs to be replaced and installed, and the blade 2 is fixed in the wedge-shaped groove 101 at the front end of the cutter handle 1 through the matching of the bolt 3, the thread groove 102 and the limiting hole 23, the fixing structure is simpler, the cutter 2 is convenient to install and replace, the working efficiency can be effectively improved, meanwhile, the cost is lower, and when one end of the blade 2 is damaged by the cutter tip 22, the other end of the cutter 2 is replaced, and when the cutter 2 is stressed, if the cutter 2 is directly fixed on the cutter handle 1, the cutter 2 is stressed to rotate, the cutter 2 is enabled to be loose, and the cutter 2 is enabled to be unstable to be in a condition that the cutter handle is not stable, and the cutter handle is normally contacted with the cutter handle 2, and the cutter handle face is normally is guaranteed, and the cutter handle 2 is contacted with the cutter handle through the cutter handle 2.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The dovetail groove turning tool is characterized by comprising a tool handle (1) and a blade (2) assembled at the front end of the tool handle, wherein the tool handle (1) and the blade (2) are connected through a bolt (3);

the front end of the knife handle (1) is provided with a wedge-shaped groove (101) for accommodating a knife blade (2), the wedge-shaped groove (101) comprises a first groove surface (1011), a second groove surface (1012) and a third groove surface (1013), the knife blade (2) comprises a knife blade main body (21), two sides of the knife blade main body (21) are respectively provided with a first knife surface (211), a second knife surface (212) and a third knife surface (213), and the first knife surface (211) and the second knife surface (212) are in transitional connection through the third knife surface (213);

the first blade surface (211) on one side of the blade body (21) is in contact with a first groove surface (1011), the second blade surface (212) adjacent to the first blade surface (211) is in contact with a second groove surface (1012), and the third blade surface (213) on the other side of the blade body (21) is in contact with a third groove surface (1013).

2. The dovetail turning tool according to claim 1, wherein the groove surfaces of the three wedge grooves (101) sequentially comprise a vertical surface (10113), a first inclined surface (10111) and a second inclined surface (10112) which gradually incline outwards of the grooves of the wedge grooves (101), the tool surfaces gradually incline towards the center of the insert (2) from top to bottom, and the inclined tool surfaces are in contact with the second inclined surface (10112).

3. The dovetail turning tool according to claim 2, wherein said first chamfer (10111) is inclined at a greater angle than said second chamfer (10112).

4. The dovetail turning tool according to claim 1, wherein said first slot surface (1011) and said second slot surface (1012) are transitionally joined by a first open slot (103) for receiving adjacent edges of a first blade surface (211) and a second blade surface (212).

5. The dovetail turning tool according to claim 4, wherein a limiting hole (23) is formed in the center of the front face of the blade body (21), a thread groove (102) is formed in the groove face of the bottom of the wedge groove (101), the limiting hole (23) is coaxially arranged with the wedge groove (101), and the bolt (3) is connected with the limiting hole (23) and the thread groove (102) in a matched mode.

6. The dovetail turning tool according to claim 5, wherein said insert (2) further comprises tips (22) provided at both ends of the insert body (21), and both said tips (22) are symmetrical about the center axis of the limiting hole (23).

7. The dovetail turning tool according to claim 6, wherein said second slot surface (1012) and said third slot surface (1013) are in transitional engagement by a second open slot (104) for receiving a nose (22).

8. The dovetail turning tool according to claim 1, wherein said shank (1) is divided into left and right hand according to the position of the wedge-shaped groove (101).