CN219292829U

CN219292829U - Chip removal direction controllable ladder chamfer bores

Info

Publication number: CN219292829U
Application number: CN202223562754.5U
Authority: CN
Inventors: 沈春根
Original assignee: Changzhou Ruilin Cutting Technology Co ltd
Current assignee: Changzhou Ruilin Cutting Technology Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-07-04
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a ladder chamfer drill with controllable chip removal guiding, which comprises a drill rod, a thread processing head, a connecting component and a drill bit. The beneficial effects of the utility model are as follows: through setting up chip groove one and chip groove two, can carry out directional clearance to milling the sweeps that produces, can control sweeps exhaust direction, avoid sweeps to splash everywhere, through setting up louvre one and louvre two, can dispel the heat that cutter surface produced in the milling process, reduce the damage probability of high temperature to the chamfer brill, this chamfer sword is through setting up screw thread processing head moreover, can carry out screw thread processing to the hole after the chamfer as required, need not to change the cutter, it is more convenient to use.

Description

Chip removal direction controllable ladder chamfer bores

Technical Field

The utility model relates to a chamfer drill, in particular to a stepped chamfer drill with controllable chip removal guiding, and belongs to the technical field of milling cutters.

Background

The chamfering is to machine the hole edge of the finished product Kong Fengli into 2 relatively soft transition angles, the chamfering tool has no requirement, so long as chamfering can be carried out, a common drill bit which is more than one time larger than the hole diameter is selected, the hole edge is drilled by 2mm (a common twist drill, the chamfering is 30 degrees, because the drill bit is about 120 degrees), or a special chamfering drill bit is used, the diameter of the drill is relatively large, the head is often provided with a plurality of cutting edges (the twist drill only has 2 cutting edges), and the cutting edge part is relatively short, so that the chamfering of holes with various diameters can be completed.

The existing chamfer is bored, for example, the multifunctional chamfering compound ladder of a high strength that patent number CN217121857U disclosed is bored, it is through setting up first flat drill point and second flat drill point, can restrain the burr of drill way exit well, the surface is better when making reverse chamfer, the life of drill bit is prolonged, thereby the problem of inconvenient hole and the positive and negative chamfer processing operation of hole of carrying out simultaneously has been solved, but this chamfer is bored in the in-service use, only can carry out the chamfer to the hole, when need carry out screw thread to the hole inner wall, often need change the cutter, increase user's working strength, moreover this kind of chamfer sword is when the chamfer, the discharge direction of sweeps is random, lead to the sweeps to splash everywhere, pollute workshop environment.

Disclosure of Invention

The utility model aims to solve at least one technical problem and provide the ladder chamfer drill with controllable chip removal guiding.

The utility model realizes the above purpose through the following technical scheme: a chip removal guiding controllable stepped chamfer drill, comprising

The drill rod is arranged on the upper side of the chamfer drill, and the upper surface of the drill rod is fixedly connected with a positioning head;

the thread machining head is used for machining threads of the holes and is arranged on the lower side of the drill rod;

the connecting component is used for fixing the thread processing head and the drill rod, is arranged between the thread processing head and the drill rod, and comprises a first mounting plate fixedly connected to the bottom end of the drill rod, a fixing bolt fixedly connected to the bottom surface of the first mounting plate and a second mounting plate fixedly connected to the surface of the thread processing head, wherein a fixing nut is connected to the surface of the fixing bolt in a threaded manner, and the first mounting plate is fixedly connected with the second mounting plate through the cooperation of the fixing bolt and the fixing nut;

the drill bit is used for chamfering the workpiece and is fixedly connected to the bottom end of the thread machining head.

As still further aspects of the utility model: the surface of the drill rod is provided with a clamping groove.

As still further aspects of the utility model: the surface of the screw thread processing head is provided with a first chip groove, and the surface of the drill bit is provided with a second chip groove.

As still further aspects of the utility model: the surface of the screw thread processing head is provided with a first heat dissipation hole, and the surface of the drill bit is provided with a second heat dissipation hole.

As still further aspects of the utility model: the surface center position of the second mounting plate is fixedly connected with a positioning column, the center position of the bottom surface of the drill rod is provided with a positioning groove matched with the positioning column, the inner wall of the positioning groove is fixedly connected with a spring, and the bottom end of the spring is fixedly connected with a moving block.

The beneficial effects of the utility model are as follows:

according to the chamfering tool, the chip grooves I and II are arranged, so that the waste chips generated by milling can be directionally cleaned, the discharging direction of the waste chips can be controlled, the waste chips are prevented from splashing everywhere, the heat generated on the surface of the tool in the milling process can be dissipated through the arrangement of the heat dissipation holes I and II, the damage probability of high temperature to the chamfer drill is reduced, in addition, the chamfering tool can be used for carrying out thread machining on the holes after chamfering according to the needs through the arrangement of the thread machining head, the tool is not required to be replaced, and the chamfering tool is convenient to use.

Drawings

FIG. 1 is a schematic view of the overall appearance structure of the present utility model;

FIG. 2 is a schematic view of the disassembled structure of the drill pipe and the thread machining head of the present utility model;

fig. 3 is an enlarged schematic view of the structure at a in fig. 2.

In the figure: 1. the drill rod comprises a drill rod body, 2, clamping grooves, 3, a positioning head, 4, a connecting component, 41, first mounting plates, 42, second mounting plates, 43, fixing nuts, 44, positioning columns, 45, positioning grooves, 46, springs, 47, moving blocks, 48, fixing bolts, 5, a thread processing head, 6, a drill bit, 7, second cooling holes, 8, second chip grooves, 9, first chip grooves, 10 and first cooling holes.

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.

Example 1

As shown in fig. 1 to 3, a chip removal guide controllable stepped chamfer drill includes

The drill rod 1 is arranged on the upper side of the chamfer drill, and the upper surface of the drill rod is fixedly connected with the positioning head 3;

a screw thread machining head 5 for screw thread machining of the hole, which is provided at the lower side of the drill rod 1;

the connecting component 4 is used for fixing the thread processing head 5 and the drill rod 1, is arranged between the thread processing head 5 and the drill rod 1, and comprises a first mounting plate 41 fixedly connected to the bottom end of the drill rod 1, a fixing bolt 48 fixedly connected to the bottom surface of the first mounting plate 41 and a second mounting plate 42 fixedly connected to the surface of the thread processing head 5, a fixing nut 43 is connected to the surface of the fixing bolt 48 in a threaded manner, and the first mounting plate 41 is fixedly connected with the second mounting plate 42 through the cooperation of the fixing bolt 48 and the fixing nut 43;

and the drill bit 6 is used for chamfering the workpiece and is fixedly connected to the bottom end of the thread processing head 5.

Example two

As shown in fig. 1 to 3, this embodiment includes, in addition to all the technical features of the first embodiment, the following steps:

the clamping groove 2 is formed in the surface of the drill rod 1, so that the chamfer drill is conveniently connected with a machine tool.

Chip grooves I9 are formed in the surface of the thread processing head 5, chip grooves II 8 are formed in the surface of the drill bit 6, and therefore scraps generated by milling can be directionally cleaned, the direction of scraps discharge can be controlled, and the scraps can be prevented from splashing everywhere.

Example III

the first heat dissipation holes 10 are formed in the surface of the thread processing head 5, the second heat dissipation holes 7 are formed in the surface of the drill bit 6, heat generated on the surface of a cutter in the milling process can be dissipated, and the damage probability of high temperature to the chamfer drill is reduced.

Example IV

the center position of the surface of the second mounting plate 42 is fixedly connected with a positioning column 44, the center position of the bottom surface of the drill rod 1 is provided with a positioning groove 45 matched with the positioning column 44, the inner wall of the positioning groove 45 is fixedly connected with a spring 46, the bottom end of the spring 46 is fixedly connected with a moving block 47, when the drill rod 1 is connected with the thread processing head 5, the thread processing head 5 is firstly inserted into the positioning groove 45 through the positioning column 44, then the angle of the drill rod 1 is adjusted, a fixing bolt 48 is inserted into a mounting hole formed in the surface of the second mounting plate 42, then the fixing nut 43 is screwed, the positioning column 44 abuts against the moving block 47 in the screwing process, then the moving block 47 presses the spring 46 until the fixing nut 43 is screwed, the spring 46 is in a compressed state, repulsive force exists between the spring 46 and the positioning column 44, connection between the fixing bolt 48 and the fixing nut 43 is more tight, and the drill bit 6 is convenient to replace in later period.

Working principle: when the chamfering drill is used for chamfering a workpiece, the chamfering drill is assembled firstly, during assembly, the thread processing head 5 is inserted into the positioning groove 45 through the positioning column 44, then the angle of the drill rod 1 is adjusted, the fixing bolt 48 is inserted into a mounting hole formed in the surface of the mounting plate II 42, then the fixing nut 43 is screwed, the positioning column 44 can abut against the moving block 47 in the screwing process, then the moving block 47 presses the spring 46 until the fixing nut 43 is screwed, at the moment, the spring 46 is in a compressed state, repulsive force exists between the spring 46 and the positioning column 44, connection between the fixing bolt 48 and the fixing nut 43 can be fastened more, the drill bit 6 can be replaced later conveniently, then the chamfering drill is connected with a machine tool through the matching of the positioning head 3 and the clamping groove 2, in the using process, waste chips generated by milling can be cleaned in a directional mode through the chip removal groove I9 and the chip removal groove II 8, the waste chip can be prevented from splashing around, and the heat dissipation probability of the milling cutter can be reduced in the milling process through the heat dissipation hole I10 and the heat dissipation hole II 7.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. A chip removal guiding controllable stepped chamfer drill, which is characterized by comprising

The drill rod (1) is arranged on the upper side of the chamfer drill, and the upper surface of the drill rod is fixedly connected with the positioning head (3);

a thread machining head (5) for thread machining a hole, which is arranged on the lower side of the drill rod (1);

the connecting assembly (4) is used for fixing the thread machining head (5) and the drill rod (1), is arranged between the thread machining head (5) and the drill rod (1), and comprises a first mounting plate (41) fixedly connected to the bottom end of the drill rod (1), a fixing bolt (48) fixedly connected to the bottom surface of the first mounting plate (41) and a second mounting plate (42) fixedly connected to the surface of the thread machining head (5), a fixing nut (43) is connected to the surface of the fixing bolt (48) in a threaded manner, and the first mounting plate (41) is fixedly connected with the second mounting plate (42) through the cooperation of the fixing bolt (48) and the fixing nut (43);

and the drill bit (6) is used for chamfering the workpiece and is fixedly connected to the bottom end of the thread processing head (5).

2. A chip ejection guide controllable stepped chamfer drill according to claim 1, wherein: the surface of the drill rod (1) is provided with a clamping groove (2).

3. A chip ejection guide controllable stepped chamfer drill according to claim 1, wherein: chip grooves I (9) are formed in the surface of the thread machining head (5), and chip grooves II (8) are formed in the surface of the drill bit (6).

4. A chip ejection guide controllable stepped chamfer drill according to claim 1, wherein: the surface of the thread processing head (5) is provided with a first radiating hole (10), and the surface of the drill bit (6) is provided with a second radiating hole (7).

5. A chip ejection guide controllable stepped chamfer drill according to claim 1, wherein: the positioning device is characterized in that a positioning column (44) is fixedly connected to the surface center position of the mounting plate II (42), a positioning groove (45) matched with the positioning column (44) is formed in the center position of the bottom surface of the drill rod (1), a spring (46) is fixedly connected to the inner wall of the positioning groove (45), and a moving block (47) is fixedly connected to the bottom end of the spring (46).