CN206509556U - A kind of branching bolster structure of electric tool - Google Patents

Abstract

The utility model discloses a support frame structure of an electric tool, which is installed in a casing. A motor compartment, a support frame compartment and an output shaft compartment are arranged in the casing, a motor is installed in the motor compartment, and a support frame is installed in the support frame compartment. The output shaft assembly is installed in the output shaft compartment, and the support frame is provided with a through hole through which the output shaft of the power supply motor passes. The through hole is concentric with the output shaft of the motor, and the output shaft of the motor cooperates with the output shaft assembly. The bottom is provided with arc-shaped support frame positioning ribs, the support frame positioning ribs are coaxial with the output shaft of the motor, and the bottom of the support frame warehouse is provided with arc-shaped grooves, the support frame positioning ribs are arranged in the grooves and the support frame can be Rotate in the groove, the side of the groove is provided with a stopper, the stopper blocks the rotation of the supporting frame, and the upper part of the supporting frame is provided with a mounting part for connecting the output shaft assembly. The utility model has the advantages of simple and reliable structure, convenient manufacture and low cost, can program the installation process, realize automatic production, and improve production efficiency.

Description

A support frame structure of an electric tool

technical field

The utility model relates to a supporting frame structure, in particular to a supporting frame structure of an electric tool.

Background technique

An electric drill is a drilling tool that uses electricity as power. It is a conventional product in electric tools and is also the most demanded electric tool product. The annual production and sales volume accounts for 35% of China's electric tools. The main specifications of electric drills are 4, 6, 8, 10, 13, 16, 19, 23, 32, 38, 49mm, etc. The number refers to the maximum diameter of the drill bit for drilling on steel with a tensile strength of 390N/mm2. For non-ferrous metals, plastics and other materials, the maximum drilling diameter can be 30-50% larger than the original specification.

The working principle of the electric drill is that the motor rotor of the electromagnetic rotary or electromagnetic reciprocating small-capacity motor performs magnetic field cutting and works, drives the working device through the transmission mechanism, and drives the gear to increase the power of the drill bit, so that the drill bit scrapes the surface of the object and penetrates the object better. .

Ordinary HALF-type electric tool assembly needs to assemble the three components of the motor assembly, the support frame assembly and the output shaft assembly, and then put them into the casing to complete the assembly, which requires high assembly workers and low efficiency, which is not conducive to automated production.

Utility model content

The utility model aims at the deficiencies in the prior art, and provides a supporting frame structure of an electric tool, which is simple and reliable in structure, convenient in manufacture and low in cost, can program the installation process, realize automatic production, and improve production efficiency.

In order to solve the above-mentioned technical problems, the utility model is solved by the following technical solutions: a support frame structure of an electric tool is installed in a casing, and the casing is provided with a motor compartment, a support frame compartment and an output shaft compartment, The motor is installed in the motor compartment, the support frame is installed in the support frame compartment, the output shaft assembly is installed in the output shaft compartment, and the support frame is provided with a through hole through which the output shaft of the power supply passes. The through hole and the output shaft of the motor are coaxial, the output shaft of the motor cooperates with the output shaft assembly, the bottom of the support frame is provided with an arc-shaped support frame positioning rib, and the support frame positioning rib Concentric with the output shaft of the motor, an arc-shaped groove is provided at the bottom of the support frame, the positioning rib of the support frame is arranged in the groove, and the support frame can rotate in the groove, Stoppers are provided on the side of the groove, and the stoppers block the rotation of the support frame, and the upper part of the support frame is provided with a mounting part for connecting the output shaft assembly.

The utility model has the advantages of simple and reliable structure, convenient manufacture and low cost, can program the installation process, realize automatic production, and improve production efficiency.

Description of drawings

Fig. 1 is a structural schematic diagram of the utility model after assembly.

Fig. 2 is a schematic diagram of the utility model when the output shaft assembly is not installed.

Fig. 3 is a schematic diagram of the utility model when the output shaft assembly is installed.

Fig. 4 is a structural schematic diagram of the support frame of the present invention.

detailed description

The utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments: as shown in Figures 1 to 4, a support frame structure of an electric tool is installed in a casing 1, and a motor is arranged in the casing 1 warehouse, support frame warehouse and output shaft warehouse, the motor 2 is installed in the motor warehouse, the support frame 3 is installed in the support frame warehouse, the output shaft assembly 4 is installed in the output shaft warehouse, and the support frame is set There is a through hole 31 through which the output shaft of the power supply motor 2 passes. The through hole 31 is coaxial with the output shaft of the motor 2. The output shaft of the motor 2 cooperates with the output shaft assembly 4 to work. The support The bottom of the frame 3 is provided with arc-shaped support frame positioning ribs 32, the support frame positioning ribs 32 are coaxial with the output shaft of the motor 2, and the bottom of the support frame warehouse is provided with arc-shaped grooves. The support frame positioning rib 32 is arranged in the groove and the support frame 3 can rotate in the groove, the side of the groove is provided with a stopper, and the stopper blocks the rotation of the support frame, the A mounting portion 33 for connecting the output shaft assembly 4 is provided on the upper part of the supporting frame 3 .

Under the existing assembly technology, when assembling the electric tool, it is necessary to assemble the three components of the motor assembly, the support frame assembly and the output shaft assembly, and then install these three components into the casing. Such an assembly method can only be done manually, which is inconvenient to be installed in the casing, and cannot be automated. It is very backward and inefficient, which greatly increases the production cost of the enterprise.

This proposal provides a device that can realize assembly line automation and greatly improve assembly efficiency.

Shown in accompanying drawing 1, be the structure after this scheme improves prior art.

As shown in accompanying drawing 2, it is the situation in the assembly of this scheme, and the motor assembly and the support frame assembly have been packed in the casing at this moment.

As shown in accompanying drawing 3, it is a schematic diagram when the output shaft assembly 4 is assembled in this scheme. The direction of the arrow indicates the direction of movement of the components during assembly.

As shown in Figure 2 and Figure 3, first assemble the motor assembly and the support frame into the casing, at this time the support frame assembly can rotate in the casing, rotate until the output shaft assembly can be loaded into the support frame, and then put them together The rotating support frame and the output shaft assembly are loaded into the casing. During assembly, in order to limit the rotation of the supporting frame, stoppers are provided on the side of the groove. During assembly, the support frame is stuck on the stopper, so it is limited to rotate.

This program will complete the supporting frame assembly and can be rotated in the casing, and the supporting frame positioning rib 32 is concentric with the center of the motor, so no matter how it rotates, it will not affect the previously assembled motor. Moreover, it is also necessary to provide grooves in the casing to match the positioning ribs 32 of the supporting frame. Through the cooperation of the two, the positioning function can be successfully realized.

Under the structure of this scheme, assembly line assembly can be realized, thereby improving labor efficiency and saving labor cost.

The scope of protection of the present utility model includes but not limited to the above embodiments, the scope of protection of the present utility model is subject to the claims, and any replacement, deformation, and improvement that are easily thought of by those skilled in the art all fall within this specification. Protection scope of utility model.

The utility model has the advantages of simple and reliable structure, convenient manufacture and low cost, can program the installation process, realize automatic production, and improve production efficiency.

Claims (1)

1. A supporting frame structure of an electric tool, installed in the casing (1), characterized in that: the casing (1) is provided with a motor compartment, a support frame compartment and an output shaft compartment, and the motor compartment A motor (2) is installed, a support frame (3) is installed in the support frame compartment, an output shaft assembly (4) is installed in the output shaft compartment, and the output shaft of the power supply motor (2) is arranged on the support frame through the through hole (31), the through hole (31) is concentric with the output shaft of the motor (2), and the output shaft of the motor (2) cooperates with the output shaft assembly (4), The bottom of the support frame (3) is provided with an arc-shaped support frame positioning rib (32), the support frame positioning rib (32) is coaxial with the output shaft of the motor (2), and the support frame warehouse The bottom is provided with an arc-shaped groove, the support frame positioning rib (32) is set in the groove and the support frame (3) can rotate in the groove, and the side of the groove is provided with a stop The block prevents the rotation of the supporting frame, and the upper part of the supporting frame (3) is provided with a mounting part (33) for connecting the output shaft assembly (4).