CN221494485U - Forming cutter for machining taper of inner hole - Google Patents

Abstract

The utility model discloses a forming cutter for machining an inner hole taper, and belongs to the field of machining. A forming tool for machining taper in an inner bore, comprising: a knife handle, a knife head and a clamp; according to the utility model, the detachable blade is fixedly arranged in the fixing groove on the side surface of the cutter head, so that the cutter has the characteristics of long service life and easiness in replacement, the cost and maintenance time can be saved, the stability and cutting effect of the blade are ensured by the fixing groove and the fastening bolt structure, the machining precision is improved, the stability of the cutter handle is maintained by the spring collet on the clamp, better guiding force and cutting stability are provided in the machining process, chips generated in the cutting process can be discharged in time by combining the pin discharging groove on the side surface of the cutter head, and the influence of chip accumulation on the cutting process is reduced.

Description

Forming cutter for machining taper of inner hole

Technical Field

The utility model relates to the field of machining, in particular to a forming cutter for machining an inner hole taper.

Background

A forming cutter for machining the taper of an inner hole of a workpiece is a cutting tool for machining the taper of the inner hole of the workpiece. Currently, a common method of machining the taper of an inner bore is to use a tool to make a grinding cut to obtain the desired taper shape.

However, the conventional machining method has some drawbacks, firstly, the machining quality and precision may be difficult to ensure due to abrasion and deformation of the cutting tool used for machining, secondly, the chip accumulation may affect the cutting process and may cause the surface quality of the workpiece to be reduced, the fixed-shape cutting tool has a short service life and needs to be frequently replaced, the machining cost and the maintenance cost are increased, and finally, the fixing manner of the cutter is not firm enough, the cutter is easily deviated or loosened, and the machining precision is affected. Conventional tool materials have a short service life, require frequent tool replacement, and increase production costs, and thus, there is a need to improve upon the deficiencies and shortcomings of the prior art.

Disclosure of utility model

An object of the utility model is to provide a shaping sword of processing hole tapering to solve the problem that proposes among the background art.

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

A forming tool for machining taper in an inner bore, comprising: handle of a knife, tool bit, anchor clamps, handle of a knife, tool bit are integrated into one piece structure, the end and the anchor clamps fixed connection of tool bit one side are kept away from to the handle of a knife, be provided with the cutter body on the tool bit, the cutter body has set gradually processing angle conical surface, wide-angle conical surface in keeping away from the handle of a knife direction, arrange the cotter way in one side of cutter body, arrange the cotter way and be close to the wide-angle conical surface direction in having seted up the fixed slot, install in the fixed slot and be fixed with detachable blade.

Further, the detachable blade is made of hard alloy materials.

Further, the detachable blade is made of high-speed steel.

Further, at least two screw holes are formed in the fixing groove, and the detachable blade is fixedly connected with the screw holes in the fixing groove through penetrating fastening bolts in a threaded manner.

Further, the gradient of the large-angle cone is larger than the gradient of the machining-angle cone.

Further, a handle sleeve is arranged on the clamp, a locking chuck is fixedly arranged on the outer side of the end head of the handle sleeve in the axial direction through threaded connection, a collet chuck is clamped in the locking chuck, the collet chuck is positioned in a closed interval formed by the handle sleeve and the locking chuck, and the collet chuck is of a table-type structure and is sleeved on the outer side of the handle in the axial direction.

Compared with the prior art, the utility model provides the forming cutter for machining the taper of the inner hole, which has the following beneficial effects:

According to the utility model, the detachable blade is fixedly arranged in the fixing groove on the side surface of the cutter head, so that the cutter has the characteristics of long service life and easiness in replacement, the cost and maintenance time can be saved, the stability and cutting effect of the blade are ensured by the fixing groove and the fastening bolt structure, the machining precision is improved, the stability of the cutter handle is maintained by the spring collet on the clamp, better guiding force and cutting stability are provided in the machining process, chips generated in the cutting process can be discharged in time by combining the pin discharging groove on the side surface of the cutter head, and the influence of chip accumulation on the cutting process is reduced.

Drawings

FIG. 1 is a schematic diagram of a forming tool for machining taper of an inner hole according to the present utility model;

FIG. 2 is a schematic cross-sectional view of a forming tool for machining taper of an inner hole according to the present utility model;

FIG. 3 is a schematic diagram of a cutter head structure of a forming cutter for machining taper of an inner hole according to the present utility model;

FIG. 4 is a schematic view of a detachable blade of a forming tool for machining taper of an inner hole according to the present utility model;

fig. 5 is a schematic diagram of a fixing groove of a forming cutter for machining taper of an inner hole according to the present utility model.

In the figure: 1. a knife handle; 2. a cutter head; 20. a cutter body; 21. a large-angle conical surface; 22. machining an angle conical surface; 3. a clamp; 31. a handle sleeve; 32. locking the chuck; 33. a collet chuck; 4. pin arranging grooves; 5. a fixing groove; 51. a screw hole; 6. a detachable blade; 61. and (5) fastening the 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.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Examples

Referring to fig. 1-5, a forming tool for machining taper of an inner bore, comprising: the tool comprises a tool handle 1, a tool bit 2, a clamp 3, the tool handle 1 and the tool bit 2 are of an integrated structure, the tool handle 1 is far away from the end on one side of the tool bit 2 and is fixedly connected with the clamp 3, a tool body 20 is arranged on the tool bit 2, a machining angle conical surface 22 and a large angle conical surface 21 are sequentially arranged on the tool body 20 in the direction away from the tool handle 1, a pin arrangement groove 4 is formed in one side of the tool body 20, a fixing groove 5 is formed in the direction of the pin arrangement groove 4, close to the large angle conical surface 21, and a detachable blade 6 is fixedly arranged in the fixing groove 5.

The detachable blade 6 is made of hard alloy materials;

As shown in fig. 3, cemented carbide is a composite material formed by combining hard particles, typically tungsten carbide, with excellent hardness, wear resistance and corrosion resistance, capable of effectively resisting abrasion and deformation of a blade edge, and the detachable blade 6 is advantageous in that it has a long service life and is capable of cutting various kinds of high-hardness materials.

The detachable blade 6 is made of high-speed steel;

As shown in fig. 3, the high-speed steel is a material with higher hardness and wear resistance, and is formed by adding elements such as molybdenum, cobalt, tungsten and the like into alloy steel, and the detachable blade 6 made of the high-speed steel can keep higher hardness in a high-temperature environment, so that the detachable blade is suitable for work with higher requirements on cutting speed and temperature, and has the advantages of good cutting effect and long service life.

At least two screw holes 51 are formed in the fixing groove 5, and the detachable blade 6 is fixedly connected with the screw holes 51 on the fixing groove 5 through penetrating fastening bolts 61 in a threaded manner.

The gradient of the large-angle tapered surface 21 is larger than that of the machined-angle tapered surface 22.

The clamp 3 is provided with a handle sleeve 31, the axial outer side of the end head of the handle sleeve 31 is fixedly provided with a locking chuck 32 through threaded connection, a collet chuck 33 is clamped in the locking chuck 32, the collet chuck 33 is positioned in a closed interval formed by the handle sleeve 31 and the locking chuck 32, and the collet chuck 33 is of a table-type structure and is sleeved on the axial outer side of the tool handle 1.

Working principle: when the tool is used, the forming tool for machining the taper of the inner hole is arranged in machining equipment, the tool bit 2 is ensured to be correctly aligned with the orifice of a machining object, the end head of the tool holder 1 can be firmly locked in the collet chuck 33 through the handle sleeve 31, the locking chuck 32 and the collet chuck 33 on the clamp 3, the whole tool holder 1 and the tool bit 2 are firmly fixed on the machining equipment, in the machining process, the large-angle conical surface 21 on the tool bit 2 is firstly contacted with the inner hole of the machining object to play a guiding role, then the side edge of the tool body 20 is used for polishing the inner hole of the machining object with the large-angle conical surface 21 and the detachable blade 6 matched with the machining angle conical surface 22, and cutting is carried out at a certain angle, as shown in fig. 5, chips generated in the polishing cutting process can be discharged outwards through the crescent-shaped discharge grooves 4, the influence of the chips accumulation on the polishing cutting process is reduced, the detachable connection of the detachable blade 6 on the fixing groove 5, the detachable blade 6 is more convenient to wear or needs to be replaced in the use process, the detachable blade 6 is enabled, the detachable blade 6 is fixed on the tool holder 6 through the detachable blade 6, the detachable blade 6 is fixed between the fixing grooves 51 and the detachable blade 6, the detachable blade holder 6 is fixed in the fixing groove 1 and the fixing stability of the tool holder is ensured, the stable in the machining process, and the stability is ensured, and the machining stability is ensured.

Claims (6)

1. A forming tool for machining taper in an inner bore, comprising: handle of a knife (1), tool bit (2), anchor clamps (3), a serial communication port, handle of a knife (1), tool bit (2) are integrated into one piece structure, the end and anchor clamps (3) fixed connection on one side of tool bit (2) are kept away from to handle of a knife (1), be provided with cutter body (20) on tool bit (2), cutter body (20) have set gradually in keeping away from handle of a knife (1) direction and have processed angle conical surface (22), wide-angle conical surface (21), arrange cotter way (4) have been seted up to one side of cutter body (20), arrange cotter way (4) and have been close to in the wide-angle conical surface (21) direction and have seted up fixed slot (5), install in fixed slot (5) detachable blade (6).

2. A forming tool for machining taper of inner holes according to claim 1, characterized in that the detachable blade (6) is made of cemented carbide.

3. A forming tool for machining taper of an inner bore according to claim 2, wherein the detachable blade (6) is made of high speed steel material.

4. The forming cutter for machining the taper of the inner hole according to claim 2, wherein at least two screw holes (51) are formed in the fixing groove (5), and the detachable blade (6) is fixedly connected with the screw holes (51) on the fixing groove (5) through penetrating fastening bolts (61) in a threaded mode.

5. A forming tool for machining taper of an inner bore according to claim 1, characterized in that the gradient of the large angle taper (21) is greater than the gradient of the machining angle taper (22).

6. The forming tool for machining the taper of the inner hole according to claim 1, wherein a handle sleeve (31) is arranged on the clamp (3), a locking chuck (32) is fixedly arranged on the outer side of the end head of the handle sleeve (31) in the axial direction through threaded connection, a collet chuck (33) is clamped in the locking chuck (32), the collet chuck (33) is positioned in a closed section formed by the handle sleeve (31) and the locking chuck (32), and the collet chuck (33) is of a table-shaped structure and is sleeved on the outer side of the handle (1) in the axial direction.