CN110919798B

CN110919798B - Electric hand drill carpenter cutting tool bit

Info

Publication number: CN110919798B
Application number: CN201911182666.2A
Authority: CN
Inventors: 郭臣; 郭启; 刘尚高; 石勇; 曹彬
Original assignee: Xuzhou Huabang Special Vehicle Co ltd
Current assignee: Xuzhou Huabang Special Vehicle Co ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2021-09-21
Anticipated expiration: 2039-11-27
Also published as: CN110919798A

Abstract

The invention discloses a woodworking cutting tool bit of an electric hand drill, which comprises a fixed column, a cutting blade fixed on the fixed column, a fixed cylinder rotatably mounted at one end of the fixed column, an extension rod inserted in the fixed cylinder, an adapter rod rotatably fixed at one end of the extension rod far away from the fixed cylinder, and a fixing device arranged at one end of the adapter rod far away from the extension rod. According to the wood cutting machine, the cutter head is fixed on a wood board to be cut through the fixing device, so that the wood cutting machine is convenient to position, the cutting bending caused by the shaking of the wrist can be avoided during cutting, and the cutting precision is improved.

Description

Electric hand drill carpenter cutting tool bit

Technical Field

The invention relates to a woodworking cutting bit of an electric hand drill, and belongs to the technical field of cutting equipment.

Background

The electric hand drill is a drilling tool powered by an alternating current power supply or a direct current battery, and is one of hand-held electric tools. The electric hand drill is the largest product in the electric tool industry, and is widely applied to the industries of buildings, decoration, household and the like. Besides punching, the electric hand drill can be provided with a cutting blade to realize cutting operation. When the straight wood board is cut, the electric hand drill is handheld, and the cutting piece is perpendicular to the output shaft of the electric hand drill, so that the electric hand drill is held by two hands, high accuracy and linearity cannot be maintained easily in cutting due to lack of fixing and supporting, cutting deviation is easily caused due to movement of the hands, and the cut surface is not flat.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides the electric hand drill woodworking cutting tool bit which is fixed on a wood board to be cut through a fixing device, is convenient to position, can not cause bending of cutting due to shaking of a wrist during cutting, and improves the cutting precision.

In order to achieve the purpose, the electric hand drill woodworking cutting tool bit comprises a fixed column, a cutting blade fixed on the fixed column, a fixed cylinder rotatably mounted at one end of the fixed column, an extension rod inserted in the fixed cylinder, a switching rod rotatably fixed at one end of the extension rod far away from the fixed cylinder, and a fixing device arranged at one end of the switching rod far away from the extension rod, wherein the fixed column is a regular multi-surface column, one end of the fixed column is provided with external threads, the cutting blade is axially fixed on the fixed column through a nut, one end of the fixed column close to the cutting blade is provided with a bearing, an inner ring of the bearing is connected with the fixed column, an outer ring of the bearing is connected with the fixed cylinder, the extension rod is connected with the fixed cylinder in a sliding manner, a fixed groove is formed in the extension rod, a fixed bolt inserted in the fixed groove of the extension rod is mounted on the side wall of the bearing fixed cylinder, and the switching rod is an L-shaped cylinder, the straight end of switching pole is fixed with the extension rod through locking bolt, the protruding end directional cutting piece of switching pole is served and is provided with the ball, two sides symmetrical arrangement respectively about the protruding end of switching pole has a set of fixing device, fixing device is including fixing gag lever post on the switching pole, the limiting plate of slidable mounting on the gag lever post and cup jointing the supporting spring on the gag lever post, the both ends of supporting spring are fixed respectively on limiting plate and switching pole.

Preferably, the fixed column is a right-six-sided column.

Preferably, the bearing is a roller bearing.

Preferably, the bottom wall of the fixing groove on the extension rod is provided with anti-slip lines.

Preferably, one end of the limiting rod, which is far away from the adapter rod, is provided with an external thread.

Compared with the prior art, the wood cutting machine has the advantages that the cutter head is fixed on a wood board to be cut through the fixing device, the positioning is convenient, the cutting bending caused by the shaking of the wrist can be avoided during cutting, and the cutting precision is improved.

Drawings

FIG. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

fig. 3 is a third schematic structural diagram of the present invention.

In the figure: 1. the device comprises a fixing column, 1-1 parts of a nut, 1-2 parts of a bearing, 2 parts of a cutting piece, 3 parts of a fixing cylinder, 4 parts of an extension rod, 5 parts of a switching rod, 6 parts of a limiting rod, 7 parts of a supporting spring, 8 parts of a limiting plate, 9 parts of a fixing device.

Detailed Description

The technical solutions in the implementation of the present invention will be made clear and fully described below with reference to the accompanying drawings, and the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 3, an electric hand drill woodworking cutter head provided by an embodiment of the present invention includes a fixed column 1, a cutting blade 2 fixed on the fixed column 1, a fixed cylinder 3 rotatably installed at one end of the fixed column 1, an extension rod 4 inserted into the fixed cylinder 3, an adapter rod 5 rotatably fixed at one end of the extension rod 4 far from the fixed cylinder 3, and a fixing device 9 disposed at one end of the adapter rod 5 far from the extension rod 4, wherein the fixed column 1 is a regular multi-surface column, one end of the fixed column 1 is provided with an external thread, the cutting blade 2 is axially fixed on the fixed column 1 through a nut 1-1, one end of the fixed column 1 close to the cutting blade 2 is provided with a bearing 1-2, an inner ring of the bearing 1-2 is connected with the fixed column 1, an outer ring of the bearing is connected with the fixed cylinder 3, the extension rod 4 is slidably connected with the fixed cylinder 3, a fixing groove is disposed on the extension rod 4, install the fixing bolt of grafting in extension rod 4 fixed slot on the lateral wall of bearing fixing cylinder 3, switching pole 5 is L type cylinder, the straight end of switching pole 5 is fixed with extension rod 4 through locking bolt, the protruding directional cutting piece 2 of end of switching pole 5 serves and is provided with the ball, two sides symmetrical arrangement respectively about the protruding end of switching pole 5 has a set of fixing device 9, fixing device 9 is including fixing gag lever post 6, the limiting plate 8 of slidable mounting on gag lever post 6 on switching pole 5 and cup jointing supporting spring 7 on gag lever post 6, the both ends of supporting spring 7 are fixed respectively on limiting plate 8 and switching pole 5.

Preferably, the fixed column 1 is a right-six-sided column.

Preferably, the bearings 1-2 are roller bearings.

Preferably, the bottom wall of the fixing groove on the extension rod 4 is provided with an anti-slip line.

Preferably, one end of the limiting rod 6, which is far away from the adapter rod 5, is provided with an external thread.

The working process is as follows: when the straight plank in cutting edge, fixed column 1 inserts electric hand drill output and the locking is fixed, moves the length that fixing bolt on the solid fixed cylinder 3 adjusted extension rod 4 through twisting, fixes the angle of switching pole 5 and extension rod 4 through locking bolt, presss from both sides the plank in fixing device 9's centre, can install fixation nut additional through the one end of keeping away from switching pole 5 at gag lever post 6 and confirm the position of limiting plate 8. The one end that is close to cutting piece 2 of adapter rod 5 contacts with the template, and the ball has played the effect of fine reduction resistance. At the moment, the electric hand drill is started to cut, so that good linearity can be guaranteed to be kept during cutting.

In conclusion, the cutting head is fixed on the wood board to be cut through the fixing device 9, so that the positioning is convenient, the cutting bending caused by the shaking of the wrist can be avoided during cutting, and the cutting precision is improved.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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 description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art.

Claims

1. The electric hand drill woodworking cutter head is characterized by comprising a fixed column (1), a cutting blade (2) fixed on the fixed column (1), a fixed cylinder (3) rotatably mounted at one end of the fixed column (1), an extension rod (4) inserted in the fixed cylinder (3), a switching rod (5) rotatably fixed at one end, far away from the fixed cylinder (3), of the extension rod (4) and a fixing device (9) arranged at one end, far away from the extension rod (4), of the switching rod (5), wherein the fixed column (1) is a regular multi-face column, external threads are arranged at one end of the fixed column (1), the cutting blade (2) is axially fixed on the fixed column (1) through a nut (1-1), a bearing (1-2) is mounted at one end, close to the cutting blade (2), of the fixed column (1-2), and an inner ring of the bearing (1-2) is connected with the fixed column (1), The outer ring is connected with the fixed cylinder (3), the extension rod (4) is connected with the fixed cylinder (3) in a sliding manner, a fixed groove is formed in the extension rod (4), a fixing bolt inserted in the fixed groove of the extension rod (4) is installed on the side wall of the bearing fixed cylinder (3), the adapter rod (5) is an L-shaped cylinder, the straight end of the adapter rod (5) is fixed with the extension rod (4) through a locking bolt, the protruding end of the adapter rod (5) points to the cutting blade (2), balls are arranged at one end of the protruding end of the adapter rod (5) which points to the cutting blade (2), a set of fixing devices (9) are symmetrically arranged on the upper surface and the lower surface of the protruding end of the adapter rod (5) respectively, each fixing device (9) comprises a limiting rod (6) fixed on the adapter rod (5), a limiting plate (8) slidably installed on the limiting rod (6) and a supporting spring (7) sleeved on the limiting rod (6), and two ends of the supporting spring (7) are respectively fixed on the limiting plate (8) and the adapter rod (5).

2. The electric hand drill woodworking cutting bit as claimed in claim 1, wherein the fixed post (1) is a right six-sided post.

3. An electric hand drill woodworking cutting bit as claimed in claim 1, wherein the bearings (1-2) are roller bearings.

4. The electric hand drill woodworking cutting bit as claimed in claim 1, wherein the bottom wall of the fixing groove in the extension rod (4) is provided with anti-slip threads.

5. The electric hand drill woodworking cutting bit as claimed in claim 1, wherein an external thread is arranged at one end of the limiting rod (6) far away from the adapter rod (5).