CN217223741U

CN217223741U - Combined tool for drilling upper and lower chamfers and countersinks

Info

Publication number: CN217223741U
Application number: CN202220589894.2U
Authority: CN
Inventors: 李思阳
Original assignee: Mianyang Henghong Machinery Manufacturing Co ltd
Current assignee: Mianyang Henghong Machinery Manufacturing Co ltd
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2022-08-19
Anticipated expiration: 2032-03-16

Abstract

The utility model discloses a chamfer countersink combined tool about drilling relates to ladder and expands and bores the cutter technical field, solves the cutter and changes required time and the low technical problem of machining efficiency in the drilling cutter course of working, the utility model discloses a chamfer countersink combined tool about drilling, including drill bit and handle of a knife, the drill bit is fixed and compresses tightly on the cutter body, the cutter body is packed into the handle of a knife, the handle of a knife inserts on the drilling machine, and countersink blade and upper chamfer blade are installed to the left end of cutter body, and drill bit, cutter body and handle of a knife from left to right arrange the setting in proper order; used for drilling, countersinking and chamfering the workpiece, the utility model has the advantages of the cutter needs short time and the machining efficiency is high.

Description

Combined tool for drilling upper and lower chamfers and countersinks

Technical Field

The utility model relates to a ladder expands bores cutter technical field, and more specifically relates to chamfer ream face gang tool technical field about drilling.

Background

In the metal processing technology, a blind hole with a precast hole is processed, the hole depth exceeds 7 times of the diameter, the quality of the processed hole is highly required, and the straightness and the position of the processed hole are unstable easily during processing.

A combined cutter for milling the surface of a drilled hole and countersinking the surface of the drilled hole is a cutter for machining the upper chamfer and the lower chamfer of the drilled hole of a boss, the surface of the hole of the boss is usually milled by a surface milling cutter firstly, then a drill bit is changed for drilling the hole, the upper chamfer is machined by a chamfering cutter, and finally the lower chamfer is machined by an inverse chamfering cutter through arc interpolation, 4 times of cutter changing in the whole machining process are carried out, 5 seconds and 20 seconds are respectively used each time, 1.5 seconds and 6 seconds are respectively used each time after the cutter changing is positioned, however, the surface of the hole is used for 1.5 seconds when the hole is drilled, 1 second is used for the upper chamfer, 1 second is used for the lower chamfer, the time is mainly consumed on the cutter changing, and the traditional machining is carried out by using the time on the cutter changing, so that the machining efficiency is extremely low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an: in order to solve the problem that the cutter needs time and machining efficiency to be low in the current drilling cutter course of working to change, the utility model provides a chamfer ream face gang tool about drilling.

The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:

chamfer countersink gang tool about drilling, including drill bit and handle of a knife, the drill bit is fixed and compresses tightly on the cutter body, the cutter body is packed into in the handle of a knife, the handle of a knife inserts on the drilling machine, and countersink blade and last chamfer blade are installed to the left end of cutter body, and drill bit, cutter body and handle of a knife from left to right arrange the setting in proper order.

Further, the diameter of the left end of the drill bit is larger than that of the right end of the drill bit.

Further, a lower chamfer cutting edge is formed at the joint of the left end and the right end of the drill.

Further, the countersink blades and the upper chamfering blades are distributed at the left end of the cutter body in a staggered mode along the circumferential array of the axis of the cutter body.

Further, the countersink blade and the upper chamfer blade are connected through a pressing blade screw.

Further, the drill bit and the cutter body are connected through a drill bit pressing screw.

Further stated, the diameter of the tool body is smaller than the diameter of the tool shank.

The utility model has the advantages as follows:

1. the utility model discloses be in the same place drill bit, ream face sword and chamfer sword function combination, reduced tool changing number and idle stroke number of times, all cutting process are accomplished to a tool changing, have improved machining efficiency greatly.

2. The utility model discloses reduce a ream face blade on ream face sword, increase one and go up the chamfer blade and realize the chamfer, install the drill bit at the cutter center and drill, increase down the chamfer cutting edge on the drill bit, through walking the circular arc interpolation and realizing down the chamfer function.

3. The utility model discloses reduced 3 times tool changers and 3 times location idle strokes in the course of working, 31 seconds when prior art's method processing is shared, and adopt this cutter processing only to accomplish processing with 12 seconds, practiced thrift 19 seconds altogether, improved machining efficiency greatly, for the increase production income of enterprise.

4. The utility model discloses the left end diameter of drill bit is greater than the right-hand member diameter, and the knife tip of chamfer blade is guaranteed in the chip groove of drill bit (the right-hand member of drill bit promptly) to the drill bit, and the follow-up chamfer blade of just can installing compresses tightly the drill bit of taking the lower chamfer at the cutter body through pressing the drill bit screw.

5. The left end and the right-hand member handing-over department of drill bit are formed with lower chamfer cutting edge, and the cutter goes upward to chamfer department down, and the skew of cutter center is walked the circular arc and is interpolated the lower chamfer cutting edge of using the drill bit to boss hole left end face chamfer, and the back has been accomplished to the chamfer, and the hole center is got back to the cutter, continues to go upward to leave the work piece, accomplishes processing.

6. Counter boring blade and last chamfer blade are in the left end of cutter body is followed the staggered distribution of axis circumference array of cutter body, cutter location are in boss hole center department, from the drilling of work piece surface division, and the back cutter that drills through continues down to carry out boss hole right-hand member face chamfer processing with last chamfer blade, carries out boss hole right-hand member face processing with the counter boring blade, goes up chamfer blade and counter boring blade and can go on in the short time to the preceding chamfer process behind the boss hole right-hand member face.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Reference numerals are as follows: 1-a chamfered drill bit, 2-a countersink blade, 3-a blade pressing screw, 4-an upper chamfer blade, 5-a cutter point on the drill bit, 6-a cutter body, 7-a cutter handle and 8-a lower chamfer cutting edge.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it should be understood that the directions or positional relationships are the directions or positional relationships shown on the drawings, which are only for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

Example 1

As shown in fig. 1, the embodiment provides a combined tool for drilling upper and lower chamfers and countersinks, which comprises a drill bit 1 and a tool holder 7, wherein the drill bit 1 is fixed and pressed on a tool body 6, the tool body 6 is installed in the tool holder 7, the tool holder 7 is inserted into a drilling machine, a countersink blade 2 and an upper chamfer blade 4 are installed at the left end of the tool body 6, and the drill bit 1, the tool body 6 and the tool holder 7 are sequentially arranged from left to right.

The diameter of cutter body 6 is less than the diameter of handle of a knife 7, the left end diameter of drill bit 1 is greater than the right-hand member diameter, the left end of drill bit 1 is formed with lower chamfer cutting edge 8 with the right-hand member handing-over department.

Ream face blade 2 and last chamfer blade 4 are in the left end of cutter body 6 is followed the staggered distribution of axis circumference array of cutter body 6, ream face blade 2 and last chamfer blade 4 are connected through pressure blade screw 3, drill bit 1 and cutter body 6 are through pressing drill bit screw 5 to connect.

Example 2

The drill bit 1 with the lower chamfer angle is arranged in a middle hole of the cutter body 6, the axial line of the drill bit 1 with the lower chamfer angle is vertical to the end surface of the middle hole under the action of the end surface of the middle hole of the cutter body 6, and the axial cutting force during processing is borne, the drill bit 1 is rotated to ensure that the tool nose of the upper chamfer angle blade 4 is in a chip groove (the right end of the drill bit 1) of the drill bit 1, the upper chamfer angle blade 4 can be installed subsequently, and the drill bit 1 with the lower chamfer angle is tightly pressed on the cutter body 6 through a drill bit pressing screw 5; the countersink blade 2 and the upper chamfer blade 4 are fixed on the cutter body 6 through the blade pressing screw 3, and a positioning groove for fixing the blade (the left end of the cutter body 6) is processed on the cutter body 6, so that the blade is convenient to mount and replace; the assembled cutter body 6 is arranged in the cutter handle 7, and the cutter body 6 is fixed on the cutter handle 7 through the internal thread of the cutter handle 7.

When adding man-hour whole cutter location in boss hole center department, open the drilling from the work piece surface, the back cutter that drills through continues down (the left bank promptly) carries out boss hole right-hand member face chamfer processing with last chamfer blade 4, carries out boss hole right-hand member face processing with ream face blade 2, after processing targets in place, the cutter goes upward (the right bank) to lower chamfer department (boss hole left end face department), the cutter center skew, walk the lower chamfer cutting edge 8 of circular arc interpolation with drill bit 1 and chamfer boss hole left end face, after the chamfer, the cutter gets back to the hole center, continue to go upward (the right bank) and leave the work piece, accomplish processing.

As described above, the above embodiments are not limiting embodiments of the present invention, and modifications or equivalent variations made by those skilled in the art based on the substance of the present invention are within the technical scope of the present invention.

Claims

1. Chamfer ream gang tool about drilling, including drill bit (1) and handle of a knife (7), its characterized in that: the drill bit (1) is fixed and tightly pressed on the cutter body (6), the cutter body (6) is arranged in the cutter handle (7), the cutter handle (7) is inserted into the drilling machine, the countersink blade (2) and the upper chamfering blade (4) are installed at the left end of the cutter body (6), and the drill bit (1), the cutter body (6) and the cutter handle (7) are sequentially arranged from left to right.

2. The combined tool for drilling the upper and lower chamfers and the countersinks of claim 1, wherein: the diameter of the left end of the drill bit (1) is larger than that of the right end.

3. The combined tool for drilling the upper and lower chamfers and the countersinks of claim 2, wherein: and a lower chamfer cutting edge (8) is formed at the joint of the left end and the right end of the drill bit (1).

4. The combined tool for drilling the upper and lower chamfers and the countersinks of claim 1, wherein: the countersink cutter blade (2) and the upper chamfering cutter blade (4) are arranged at the left end of the cutter body (6) and distributed in a staggered mode in an axis circumferential array mode of the cutter body (6).

5. The combined tool for drilling upper and lower chamfers and countersinks of claim 4, wherein: the countersink blade (2) is connected with the upper chamfer blade (4) through a pressing blade screw (3).

6. The combined tool for drilling the upper and lower chamfers and the countersinks of claim 1, wherein: the drill bit (1) and the cutter body (6) are connected through a drill bit pressing screw (5).

7. The combined tool for drilling the upper and lower chamfers and the countersinks of claim 1, wherein: the diameter of the cutter body (6) is smaller than that of the cutter handle (7).