CN207386595U - A kind of fine boring cutter - Google Patents

Abstract

The utility model discloses a fine boring cutter, which comprises a fine boring main body, a fine boring head is fixed on the fine boring main body by a locking screw, a blade holder is installed on the fine boring head, and a blade is arranged on the blade holder. A boring adjusting mechanism is provided between the fine boring head and the blade holder, and a limiting mechanism for radially limiting the boring adjusting mechanism is arranged between the boring adjusting mechanism and the fine boring main body. The adjustable range of the boring hole of the utility model is expanded, and the application range is wider.

Description

A fine boring tool

technical field

The utility model relates to the technical field of cutter manufacturing, in particular to a fine boring cutter.

Background technique

At present, the precision of the boring machine machining hole is high. Generally, the tool bar is used to rough the hole first, and then the adjustable size fine bar or fine boring tool is used for boring. The larger the diameter of the processed hole, the smaller the diameter of the fine bar or fine boring tool. Large, the weight of the tool is heavy, the difficulty of tool replacement is increased, and the processing efficiency is low.

On box parts, most of the holes are bearing installation holes or hole systems with high shape and position requirements. Deep holes become a difficult problem in processing. The general boring tool body is heavy, the tool vibrates during cutting, and the service life of the blade is relatively long. Short, the bored hole is elliptical and the surface is rough. When ordinary tools are installed, due to the heavy cutter body and cutter head, there is vibration when boring deep holes, the surface of the hole is rough and elliptical, and the size is difficult to control.

Utility model content

Aiming at the deficiencies in the prior art, the purpose of the utility model is to provide a fine boring tool, the adjustable range of the boring hole is enlarged, and the application range is wider.

The above-mentioned technical purpose of the utility model is achieved through the following technical solutions: a fine boring tool, including a fine boring body, a fine boring head is fixed on the fine boring body by locking screws, and a fine boring head is installed on the fine boring head A blade holder, a blade is provided on the blade holder, a boring adjustment mechanism is provided between the fine boring head and the blade holder, and a radial limit of the boring adjustment mechanism is provided between the boring adjustment mechanism and the fine boring main body limit mechanism.

By adopting the above technical scheme, the boring adjustment mechanism is set between the fine boring head and the blade holder, and the machining range far exceeds that of other fine boring tools, and the application range is wider; and the boring adjustment mechanism and the fine boring body are controlled by The limit of the limit mechanism will not rotate, so that the fine boring head can turn out a high-precision hole. During processing, there is no need to change any structure of the cutter body, and two types of processing can be satisfied, which is convenient, quick and economical.

The utility model is further configured as follows: the boring adjustment mechanism includes a screw rod, a sleeve and an inner diameter sleeve, the sleeve is mounted on the inner diameter sleeve and connected in rotation with the inner diameter sleeve, and the screw rod is installed in the sleeve And drive the inner diameter sleeve to rotate axially.

By adopting the above technical scheme, the operation is simple, the adjustment is convenient, the adjustable range is expanded, and the application range is wide.

The utility model is further configured as follows: the inside and outside of the sleeve are provided with threads, the internal threads are connected to the screw rod, and the external threads are connected to the inner diameter sleeve.

By adopting the above technical scheme, the bolts of the sleeve, the screw rod and the inner diameter sleeve are closely matched, not easy to loosen, and work stably.

The utility model is further configured as follows: the screw rod is provided with a dial, and the middle of the dial is screwed to the screw rod through a hexagonal wrench.

By adopting the above technical scheme, the dial is twisted, and the required bore diameter is adjusted according to the scale on the dial, which is convenient for adjustment.

The utility model is further set as: a gasket is arranged between the screw rod and the fine boring main body, and the gasket is fixed on the fine boring main body by fixing screws; the gasket includes a first gasket and a second gasket , the first gasket is provided with threads and is threadedly matched with the screw rod, and the second gasket is sleeved on the first gasket and fixed on the fine boring body by fixing screws.

By adopting the above technical solution, the first gasket is threaded and fits closely with the screw rod, and the second gasket is fixed and does not move with the twisting of the screw rod, thereby limiting the radial direction of the screw rod and improving the work of the screw rod accuracy.

The utility model is further configured as follows: the limit mechanism includes a limit groove arranged on the inner diameter sleeve, a limit pin is arranged in the limit groove to prevent the inner diameter sleeve from rotating left and right, and is arranged on the fine boring main body to fix the limit Pin set screw.

By adopting the above technical solution, the inner diameter sleeve is prevented from rotating left and right, and it is ensured that the inner diameter sleeve only moves radially and cannot shake left and right.

The utility model is further configured as: the inner diameter sleeve is provided with an expansion hook groove for installing the blade seat.

By adopting the above technical solution, even if the inner diameter sleeve inevitably causes errors during production, the blade seat can be installed and used, so that the installation of the blade seat is more flexible.

The utility model is further configured as follows: the bottom of the fine boring main body is provided with an oil nozzle, and a sealing steel ball is arranged on the oil nozzle.

By adopting the above technical scheme, adding lubricating oil to the oil nipple can effectively lubricate the main body of the fine boring machine, and by sealing the oil nipple with the steel ball, the lubricating oil can seep out evenly and reduce oil loss.

The utility model is further configured as follows: the inner diameter sleeve is engaged with the blade seat, and fixed by locking bolts.

By adopting the above-mentioned technical scheme, the clamping arrangement is convenient for replacement and easy processing, the inner diameter sleeve and the blade are tightly bonded, the blade seat can be connected directly and reversely, the blade does not need to be disassembled, and the switch is convenient.

The utility model is further configured as follows: one end of the inner diameter sleeve is provided with a clamping protrusion, and the blade holder is provided with a clamping groove matching the clamping protrusion.

By adopting the above-mentioned technical scheme, the two installation methods of the same insert seat, front boring and back boring, make it possible to meet two types of machining without changing any cutter body structure or replacing any parts during machining, which is convenient and quick , good economy.

In summary, the utility model has the following beneficial effects:

The processing range is far more than other fine boring tools, the adjustable range is expanded, and the application range is wider; the two installation methods of the same insert holder, front boring and back boring, make it unnecessary to change any cutter body structure during processing. It can meet two types of processing without replacing any parts, which is convenient, fast and economical.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is the front view of the utility model embodiment;

Fig. 3 is the rear view of the utility model embodiment;

Fig. 4 is the bottom view of the utility model embodiment;

Fig. 5 is a schematic cross-sectional view of A-A direction in Fig. 2;

Fig. 6 is a schematic diagram of the fine boring head, the blade holder and the matching structure in the embodiment of the utility model;

Fig. 7 is the front view of the fine boring head in the embodiment of the utility model;

Figure 8 is a schematic cross-sectional view of the B-B direction in Figure 7;

Fig. 9 is a schematic view of the inner diameter sleeve, clip frame and matching view in the embodiment of the present invention.

In the figure: 1, fine boring main body; 2, locking screw; 3, fine boring head; 4, blade frame; 5, blade; 6, boring adjustment mechanism; 61, screw rod; 62, sleeve; 63, inner diameter 7, limit mechanism; 71, limit groove; 72, limit pin; 73, limit screw; 8, spacer; 81, first spacer; 82, second spacer; 9, fixing screw; 10. Dial; 11. Hexagonal wrench; 12. Oil nipple; 13. Blocking steel ball; 14. Locking bolt; 15. Clamping bump; 16. Clamping groove; 17. Expansion hook groove.

Detailed ways

Below in conjunction with accompanying drawing and embodiment, the utility model is described in detail.

A fine boring tool, as shown in FIG. 1 , includes a fine boring main body 1 on which a fine boring head 3 is fixed by a locking screw 2 .

As shown in FIG. 2 , a blade holder 4 is installed at one end of the fine boring head 3 , and a blade 5 is arranged on the blade holder 4 .

As shown in FIG. 3 , the other end of the fine boring head 3 is provided with a dial 10 , and the center of the dial 10 is provided with a hexagonal wrench 11 .

As shown in FIG. 4 , an oil nipple 12 is provided at the bottom of the large end of the fine boring main body 1 , and a plugging steel ball 13 is arranged inside the oil nipple 12 .

As shown in Figure 5, a boring adjustment mechanism 6 is provided in the fine boring main body 1, and the boring adjustment mechanism 6 is arranged between the dial 10 and the blade holder 4; the boring adjustment mechanism 6 includes a screw rod 61, a sleeve 62 and an inner diameter The sleeve 63 and the sleeve 62 are mounted on the inner diameter sleeve 63 and are connected in rotation with the inner diameter sleeve 63 . The screw rod 61 is installed in the sleeve 62 and drives the inner diameter sleeve 63 to rotate axially.

As shown in FIG. 6 , a limiting mechanism 7 for radially limiting the boring adjusting mechanism 6 is provided between the boring adjusting mechanism 6 and the fine boring main body 1 .

The limit mechanism 7 includes a limit groove 71 arranged on the inner diameter sleeve 63, and a limit pin 72 is arranged on the limit groove 71. The setting of the limit pin 72 can prevent the inner diameter sleeve 63 from rotating left and right, and the limit pin 72 passes through the limit pin. The screw 73 is fixed on the fine boring main body 1 .

As shown in FIG. 7 , on the inner diameter sleeve 63 , expansion hook grooves 17 are formed on both sides of the limiting groove 71 , and the expansion hook grooves 17 are used for installing the blade holder 4 .

As shown in Figure 8, a gasket 8 is provided on the screw rod 61 between the dial 10 and the inner diameter sleeve 63, and the gasket 8 includes a first gasket 81 and a second gasket 82, and the first gasket 81 is arranged on the wire , the second spacer 82 is disposed on the first spacer 81 .

As shown in Figure 9, the side of the inner diameter sleeve 63 opposite to the blade holder 4 is provided with a locking protrusion 15, and the blade holder 4 is provided with a locking groove 16, and the locking groove 16 cooperates with the locking protrusion 15 to realize alignment of the blade For the installation of the frame 4, the blade frame 4 can be installed upright or reversed.

The above descriptions are only preferred implementations of the present utility model, and the protection scope of the present utility model is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present utility model all belong to the protection scope of the present utility model. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims (10)

1. A fine boring cutter, comprising a fine boring main body (1), is characterized in that: on the described fine boring main body (1), a fine boring head (3) is fixedly provided with a locking screw (2), the fine boring head ( 3) a blade holder (4) is installed on the blade holder (4), a blade (5) is arranged on the blade holder (4), and a boring adjustment mechanism (6) is provided between the fine boring head (3) and the blade holder (4), A limiting mechanism (7) for radially limiting the boring adjusting mechanism (6) is provided between the boring adjusting mechanism (6) and the fine boring main body (1). 2. A fine boring tool according to claim 1, characterized in that: the boring adjustment mechanism (6) includes a screw rod (61), a sleeve (62) and an inner diameter sleeve (63), the sleeve The cylinder (62) is threaded on the inner diameter sleeve (63) and is rotationally connected with the inner diameter sleeve (63). The screw rod (61) is threaded in the sleeve (62) and drives the inner diameter sleeve (63) to rotate axially. 3. A fine boring tool according to claim 2, characterized in that: the sleeve (62) is provided with internal and external threads, the internal thread is connected to the screw rod (61), and the external thread is connected to the inner diameter sleeve (63 ). 4. A fine boring tool according to claim 3, characterized in that: the screw (61) is provided with a dial (10), and the middle of the dial (10) is connected with the screw by a hexagonal wrench (11). (61) threaded connection. 5. A fine boring tool according to claim 4, characterized in that: a gasket (8) is provided between the screw rod (61) and the fine boring body (1), and the gasket (8) It is fixed on the fine boring main body (1) by fixing screws (9); the gasket (8) includes a first gasket (81) and a second gasket (82), and the first gasket (81) is provided with Threaded and threaded with the screw rod (61), the second gasket (82) is sleeved on the first gasket (81) and fixed on the fine boring main body (1) by a set screw (9). 6. A fine boring tool according to claim 1, characterized in that: the limiting mechanism (7) includes a limiting groove (71) arranged on the inner diameter sleeve (63), and is arranged in the limiting groove ( 71) The limit pin (72) for preventing the inner diameter sleeve (63) from rotating left and right is arranged on the fine boring main body (1) for the limit screw (73) for fixing the limit pin (72). 7. A fine boring tool according to claim 6, characterized in that: the inner diameter sleeve (63) is provided with an expansion hook groove (17) for installing the seat of the blade (5). 8. A fine boring tool according to claim 1, characterized in that: a grease nozzle (12) is provided at the bottom of the fine boring body (1), and a plugging steel ball (13) is provided on the nozzle (12). 9. A fine boring tool according to claim 2, characterized in that: the inner diameter sleeve (63) is engaged with the seat of the blade (5), and is fixed by a locking bolt (14). 10. A fine boring tool according to claim 9, characterized in that: one end of the inner diameter sleeve (63) is provided with a clamping protrusion (15), and the seat of the blade (5) is provided with a clamping The snap-in groove (16) that matches the bump (15).