CN220612414U - Hand-held curve beveling machine - Google Patents

Abstract

The utility model discloses a hand-held curve beveling machine, which comprises: the handle casing, be equipped with the motor in the handle casing, handle casing left end rotation installation handle, handle casing left end fixed connection bearing frame, rotation set up the main shaft in the bearing frame, main shaft lower extreme fixed mounting cutter head, the motor drive in the handle casing connects the main shaft, handle casing right-hand member face is equipped with toggle switch, toggle switch control connection motor, main shaft side threaded connection flywheel. According to the utility model, fatigue of long-term holding of the switch by fingers is relieved, the replaceable damping sleeve is arranged on the open handle, and the open handle is not easy to fatigue during handheld operation, so that the processing speed and quality are greatly improved, the milling head is subjected to impact load, the motor load and the rotation speed are reduced, the bearing seat and the flywheel are used for increasing inertia for the milling head, the impact load on the blade during milling is relieved, the reduced rotation speed is reduced, and further, chamfering and pre-welding groove processing with higher efficiency and higher quality are achieved.

Description

Hand-held curve beveling machine

Technical Field

The utility model relates to the technical field of chamfering machines, in particular to a handheld curve type chamfering machine.

Background

The pipeline beveling machine is a special tool for chamfering and beveling the front end face of a pipeline or a flat plate in welding, overcomes the defects of nonstandard angle, rough slope, large working noise and the like of operation processes such as flame cutting, polishing machine grinding and the like, and has the advantages of simplicity and convenience in operation, standard angle, smooth surface and the like.

The flat beveling machine is divided into: portable flat beveling machine, automatic walking flat beveling machine and fixed flat beveling machine.

The existing beveling machine has the following defects: 1. the known beveling machines are provided with an elastic coupling which comprises a plurality of springs which are supported on the driven-side end of the spindle part in a disk-shaped spring support and on the drive-side end of the spindle part in a disk-shaped mating support, which are relatively complex in construction and relatively high in cost;

2. the push switch needs to be pressed all the time to keep the starting state, and the finger load is large when the push switch is used for a long time.

Therefore, we propose a hand-held curvilinear beveling machine in order to solve the above mentioned problems.

Disclosure of Invention

The utility model aims to provide a handheld curve beveling machine so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a hand-held curvilinear beveling machine, comprising: the handle shell is internally provided with a motor, the left end of the handle shell is rotationally provided with a handle, the left end of the handle shell is fixedly connected with a bearing seat, a main shaft is rotationally arranged in the bearing seat, the lower end of the main shaft is fixedly provided with a milling head, and the motor in the handle shell is in transmission connection with the main shaft;

a toggle switch is arranged on the right end face of the handle shell, and the toggle switch is controlled to be connected with a motor;

and the side surface of the main shaft is connected with the flywheel through threads.

Preferably, the bearing seat is provided with a main bearing, the main bearing is fixedly connected with the main shaft, and the main shaft is rotationally connected with the bearing seat through the main bearing.

Preferably, the bearing housing is fixedly arranged on the lower end surface of the bearing housing, and a cavity is formed between the bearing housing and the bearing housing.

Preferably, the flywheel is located in a chamber between the bearing housing and the bearing shell, the flywheel increasing the inertia of the spindle rotation.

Preferably, the downward extending portion of the lower end surface of the bearing housing is screwed against the disc.

Preferably, the outer surface of the downward extending part of the lower end surface of the bearing shell is fixedly provided with a side wrapping wall, and the side wrapping wall is provided with a retaining pin.

Compared with the prior art, the utility model has the beneficial effects that:

1. the toggle switch controls the starting and closing of the motor, so that the fatigue of long-term holding of the switch by fingers is reduced, the open handle is provided with a replaceable damping sleeve, the handle is not easy to fatigue during holding operation, and occupational arm trembling caused by long-term use is prevented, so that the processing speed and quality are greatly improved;

2. the milling head receives impact load, so that the motor load and the rotation speed are reduced, the bearing seat and the flywheel are used for increasing inertia for the milling head, reducing the impact load on the blade during milling, reducing the reduced rotation speed, and further achieving chamfering and pre-welding groove machining with higher efficiency and higher quality.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a right side view of the present utility model;

FIG. 3 is a cross-sectional view of a bearing housing and bearing shell of the present utility model;

fig. 4 is a cross-sectional view of a spindle in accordance with the present utility model.

In the figure: 1. a handle housing; 2. a handle; 3. a bearing seat; 4. a bearing plate; 5. a flywheel; 6. a milling head; 7. a main shaft; 8. a bearing housing; 9. a side wrapping wall; 10. a retaining pin; 11. a toggle switch; 12. and (3) a main bearing.

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.

Referring to fig. 1-4, the present utility model provides a technical solution: a hand-held curvilinear beveling machine, comprising: the milling cutter comprises a handle shell 1, wherein a motor is arranged in the handle shell 1, a handle 2 is rotatably arranged at the left end of the handle shell 1, the left end of the handle shell 1 is fixedly connected with a bearing seat 3, a main shaft 7 is rotatably arranged in the bearing seat 3, a milling head 6 is fixedly arranged at the lower end of the main shaft 7, the motor in the handle shell 1 is in transmission connection with the main shaft 7, the main shaft 7 is driven to rotate by the motor in the handle shell 1, and the main shaft 7 drives the milling head 6 to rotate to cut an object;

a toggle switch 11 is arranged on the right end face of the handle shell 1, and the toggle switch 11 controls the starting and closing of the motor;

the bearing seat 3 is provided with a main bearing 12, and the main bearing 12 is fixedly connected with the main shaft 7, so that the main shaft 7 is rotationally connected with the bearing seat 3 through the main bearing 12;

the lower end surface of the bearing pedestal 3 is fixedly provided with a bearing shell 8, and a cavity is formed between the bearing pedestal 3 and the bearing shell 8;

the side surface of the main shaft 7 is in threaded connection with the flywheel 5, and the flywheel 5 is positioned in a cavity between the bearing seat 3 and the bearing shell 8, so that the flywheel 5 increases the inertia of the main shaft 7 in rotation;

the downward extending part of the lower end surface of the bearing shell 8 is in threaded connection with the abutting disc 4;

the outer surface of the downward extending part of the lower end surface of the bearing shell 8 is fixedly provided with a side wrapping wall 9, and the side wrapping wall 9 is provided with a retaining pin 10.

Working principle: the toggle switch 11 controls the starting and closing of the motor, the motor in the handle shell 1 drives the main shaft 7 to rotate, the main shaft 7 drives the milling head 6 to rotate for cutting objects, and the whole machine body is controlled by holding the handle shell 1 and the handle 2 in the process;

the milling head 6 receives impact load, so that the motor load and the rotation speed are reduced, the bearing seat 3 and the flywheel 6 are used for increasing inertia for the milling head 5, reducing the impact load on the blade during milling, reducing the reduced rotation speed, and further achieving chamfering and pre-welding groove processing with higher efficiency and higher quality.

What is not described in detail in this specification is prior art known to those skilled in the art.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A hand-held curvilinear beveling machine, comprising: the milling machine comprises a handle shell (1), wherein a motor is arranged in the handle shell (1), a handle (2) is rotatably arranged at the left end of the handle shell (1), the left end of the handle shell (1) is fixedly connected with a bearing seat (3), a main shaft (7) is rotationally arranged in the bearing seat (3), a milling head (6) is fixedly arranged at the lower end of the main shaft (7), and the motor in the handle shell (1) is in transmission connection with the main shaft (7);

the method is characterized in that: a toggle switch (11) is arranged on the right end face of the handle shell (1), and the toggle switch (11) is in control connection with a motor;

the side surface of the main shaft (7) is connected with the flywheel (5) through threads.

2. The hand-held beveling machine according to claim 1, characterized in that the bearing housing (3) is provided with a main bearing (12), the main bearing (12) is fixedly connected with the main shaft (7), and the main shaft (7) is rotatably connected with the bearing housing (3) through the main bearing (12).

3. The hand-held curve beveling machine according to claim 2, wherein the bearing housing (8) is fixedly mounted on the lower end surface of the bearing housing (3), and a cavity is formed between the bearing housing (3) and the bearing housing (8).

4. A hand-held beveling machine according to claim 1, characterized in that the flywheel (5) is located in a chamber between the bearing housing (3) and the bearing shell (8), the flywheel (5) increasing the inertia of the spindle (7) rotation.

5. A hand-held beveling machine according to claim 3, characterized in that the lower end face of the bearing housing (8) is threaded against the disc (4) with a downward extension.

6. A hand-held beveling machine according to claim 3, characterized in that the lower end face of the bearing housing (8) is fixedly provided with a side wall (9) on the outer surface of the downwardly extending part, and that the side wall (9) is provided with a retaining pin (10).