CN219484311U

CN219484311U - Reaming cutter with guide support

Info

Publication number: CN219484311U
Application number: CN202320520010.2U
Authority: CN
Inventors: 谌庆林; 刘光强
Original assignee: Mug Precision Tools Hangzhou co Ltd
Current assignee: Mug Precision Tools Hangzhou co Ltd
Priority date: 2023-03-17
Filing date: 2023-03-17
Publication date: 2023-08-08
Anticipated expiration: 2033-03-17

Abstract

The utility model relates to a reamer with a guide support. During the processing process, many clients use reaming tools manufactured by using a drill mill or alloy brazing, and the tools wear fast, so that the tool changing cost is high. The cutter can be seriously vibrated in the machining process, and can swing left and right, so that the machining efficiency and the machining quality are affected. The utility model comprises a cutter bar and a blade, and is characterized in that a guide supporting cylinder is formed at the front end part of the cutter bar, the upper part and the lower part of the inner end of the guide supporting cylinder are respectively provided with the blade, and the blade is fixed on the cutter bar by a locking screw. The utility model can stabilize the cutter processing, prolong the service life and facilitate the blade replacement.

Description

Reaming cutter with guide support

Technical Field

The utility model belongs to the technical field of cutter structures, and particularly relates to a reamer with a guide support.

Background

The reamer is also called a counter reamer or countersink, meaning that the existing orifice surface on the workpiece is machined with the reamer, i.e. a drilling operation that creates a funnel-shaped recess around the top of the hole to accommodate a screw head or washer, or to enable flush mounting of the connecting parts.

In the existing conventional machining tools, a large number of clients use reaming tools manufactured by using a drill mill or alloy brazing in the machining process, and the tools wear rapidly, so that the tool changing cost is high.

The conventional cutter can severely shake during the processing process and can swing left and right, so that the processing efficiency and the processing quality are affected.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model provides the reamer with the guide support, which can stabilize the cutter processing, prolong the service life and facilitate the blade replacement.

Therefore, the utility model adopts the following technical scheme: the reamer with the guide support comprises a cutter bar and a blade, and is characterized in that a guide support cylinder is formed at the front end part of the cutter bar, the blade is respectively arranged at the upper part and the lower part of the inner end of the guide support cylinder, and the blade is fixed on the cutter bar by a locking screw.

Preferably, the cutter bar is provided with a mounting hole, the center of the cutter blade is provided with a positioning hole, and the locking screw penetrates through the positioning hole and the mounting hole to position the cutter blade.

Preferably, the inner end of the locking screw is provided with a stud, the outer end of the locking screw is provided with a conical outward-expanding end part, and the positioning hole of the blade is also provided with an outward-expanding hole at the outer end to be matched with the locking screw.

Preferably, the upper and lower blades are of identical gauge.

Preferably, the guide support cylinder is positioned in the front end of the cutter bar, and forms a stepped groove with the outer edge of the cutter bar.

Preferably, the cutter bar is a two-section cutter bar, the diameter of the rear section cutter bar is larger than that of the front section cutter bar, and the rear section cutter bar is connected with the front section cutter bar through a truncated cone with transitional effect.

The utility model has the beneficial effects that:

1. the front of the cutter bar is provided with a guide supporting cylinder which is movably matched with the cutter bar through the existing hole to play a role in guide supporting, so that the swinging radian of the cutter in the cutting process is reduced more stably, and the durability of the cutter blade is improved.

2. The blade is fixed on the cutter bar through the locking screw, so that the cutter is convenient to assemble and disassemble, and the cutter changing cost, the cutter changing convenience and the dimensional stability can be reduced.

3. The cutter integral structure has higher cutting efficiency and rigidity with optimal strength.

Drawings

Fig. 1 is a schematic perspective view of the present utility model.

Fig. 2 is a partial exploded view of the present utility model.

In the figure: 1. the cutter bar comprises a rear section cutter bar 2, a cone frustum 3, a front section cutter bar 4, a blade 5, a guide support cylinder 6, a locking screw 7, a mounting hole 8, a positioning hole 9, a stud 10 and a conical outward-expansion end part.

Detailed Description

The utility model is described in further detail below with reference to the accompanying drawings.

The reamer with the guide support as shown in fig. 1-2 comprises a cutter bar and a cutter blade 4, wherein the front end part of the cutter bar forms a guide support cylinder 6, the cutter blade 4 is respectively arranged at the upper part and the lower part of the inner end of the guide support cylinder, and the cutter blade 4 is fixed on the cutter bar by a locking screw 6.

In the embodiment, the blade is fixed on the cutter bar through the locking screw, so that the cutter is convenient to assemble and disassemble, the cutter changing cost can be reduced, and the cutter changing is convenient. The front part of the mounting knife is provided with a guide supporting cylinder which is movably matched with the mounting knife through the existing hole to play a role in guide supporting, so that the swinging radian of the knife in the cutting process is reduced more stably, and the durability of the knife blade is improved.

Specifically, the cutter bar is provided with a mounting hole 7, the center of the blade 4 is provided with a positioning hole 8, and the locking screw 6 penetrates through the positioning hole 8 and the mounting hole 7 to position the blade 4. Simple structure, the installation is firm.

Specifically, the inner end of the locking screw is provided with a stud 9, the outer end is provided with a conical outward-expanding end part 10, and the positioning hole of the blade is also provided with an outward-expanding hole at the outer end to be matched with the locking screw 6. The conical outward expansion end part of the locking screw is matched with the outward expansion structure of the positioning hole, so that the locking screw has a guiding function and is convenient to reliably and quickly butt-joint.

Specifically, the upper and lower blades 4 are identical in size. The two equivalent blades are directly arranged on the cutter bar, and the processing is convenient and flexible. The cutter has higher cutting efficiency and rigidity with optimal strength.

Specifically, the guide support cylinder 5 is located inside the front end of the cutter bar, and forms a stepped groove with the outer edge of the cutter bar. The guide support cylinder has better guide support effect.

The cutter bar structure is optimized, so that the cutter bar is a two-section cutter bar, the diameter of the rear section cutter bar 1 is larger than that of the front section cutter bar 3, and the rear section cutter bar is connected with the front section cutter bar through a truncated cone 2 with a transitional effect.

The utility model improves the processing stability, avoids cutter vibration, is convenient for replacing the blade and reduces the cutter replacing cost.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims

1. The reamer with the guide support comprises a cutter bar and a blade (4) and is characterized in that a guide support cylinder (5) is formed at the front end part of the cutter bar, the blade (4) is respectively arranged at the upper part and the lower part of the inner end of the guide support cylinder, and the blade (4) is fixed on the cutter bar by a locking screw (6).

2. The reamer with the guide support according to claim 1, wherein the cutter bar is provided with a mounting hole (7), the center of the cutter blade is provided with a positioning hole (8), and the locking screw (6) penetrates through the positioning hole (8) and the mounting hole (7) to position the cutter blade (4).

3. The reamer with the guide support according to claim 2, wherein the locking screw (6) is formed with a stud (9) at an inner end thereof and a tapered outer reaming end (10) at an outer end thereof, and the positioning hole (8) of the blade (4) is also formed with an outer reaming at the outer end thereof to be matched with the locking screw (6).

4. The reamer with guide support according to claim 1, wherein the upper and lower blades (4) are of identical gauge.

5. A reamer with guide support according to claim 1, wherein the guide support cylinder (5) is located inside the front end of the cutter bar and forms a stepped groove with the outer edge of the cutter bar.

6. The reamer with the guide support according to claim 1, wherein the reamer is a two-section reamer, the diameter of the rear-section reamer (1) is larger than that of the front-section reamer (3), and the rear-section reamer and the front-section reamer are connected by a truncated cone (2) with a transitional effect.