CN113305222A

CN113305222A - Stacking and riveting process in mold of bottom plate and shell of stepping motor

Info

Publication number: CN113305222A
Application number: CN202110672896.8A
Authority: CN
Inventors: 陈有仁; 江妙丰
Original assignee: Jiangxi Jitian Photoelectric Technology Co ltd
Current assignee: Jiangxi Jitian Photoelectric Technology Co ltd
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2021-08-27

Abstract

The invention discloses a stepping motor bottom plate shell mold inner-folding riveting process, which comprises the following steps: A. the method comprises the following steps that (1) four overlapped riveting convex points and two positioning holes are punched in advance on a machine shell part; B. stamping and punching the shell part, and cleaning and drying the shell part for later use; C. placing the shell into a vibrating disc of a stack riveting die; D. the shell enters the stack riveting die along with the vibration of the vibration disc; E. pressing the die material belt of the bottom plate under the periodic action of the cylinder to rivet; F. and blanking at the last step of the die to form a laminated and riveted integrated structure product. The invention adopts the in-mold riveting process to replace the spot welding process, thereby omitting the spot welding process and related equipment; the folding and riveting process saves equipment and manpower, so that the production cost can be greatly reduced, and meanwhile, the production efficiency can be greatly improved to about 500 percent.

Description

Stacking and riveting process in mold of bottom plate and shell of stepping motor

Technical Field

The invention relates to the technical field of stepping motor bases, in particular to a stepping motor base plate shell mold inner-mold riveting technology.

Background

A stepper motor is an open-loop control element that converts electrical pulse signals into angular or linear displacements. In the non-overload condition, the rotation speed and the stop position of the motor only depend on the frequency and the pulse number of the pulse signal and are not influenced by the load change, when the stepping driver receives a pulse signal, the stepping driver drives the stepping motor to rotate by a fixed angle called a step angle according to a set direction, and the rotation of the stepping motor is operated by one step at the fixed angle. The angular displacement can be controlled by controlling the number of pulses, so that the aim of accurate positioning is fulfilled; meanwhile, the rotating speed and the rotating acceleration of the motor can be controlled by controlling the pulse frequency, so that the aim of speed regulation is fulfilled.

At present, a shell and a bottom plate need spot welding equipment in the production process of a stepping motor, so that the equipment cost is increased; the machine shell and the bottom plate are welded, manual operation is adopted, and labor cost is increased; because spot welding adopts manual operation, efficiency is very low, adopts this technology to need many welding equipment, and the welding frock needs frequent maintenance. Therefore, there is a need for improvements to existing processes.

Disclosure of Invention

The invention aims to provide a stepping motor bottom plate shell mold inner-lamination riveting process to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a technology for riveting a bottom plate and a shell of a stepping motor in a mold comprises the following steps:

A. the method comprises the following steps that (1) four overlapped riveting convex points and two positioning holes are punched in advance on a machine shell part;

B. stamping and punching the shell part, and cleaning and drying the shell part for later use;

C. placing the shell into a vibrating disc of a stack riveting die;

D. the shell enters the stack riveting die along with the vibration of the vibration disc;

E. pressing the die material belt of the bottom plate under the periodic action of the cylinder to rivet;

F. and blanking at the last step of the die to form a laminated and riveted integrated structure product.

Preferably, the riveting process in the mold of the bottom plate and the shell of the stepping motor is provided by the application, wherein a decontaminant is used for cleaning the surface of the shell during cleaning in the step A, and clear water is used for repeatedly flushing after decontamination.

Preferably, the riveting process in the stepping motor base plate shell mold is provided, wherein 4 holes with the same diameter are punched in the step C by the riveting process, and the diameter of each hole is 1.0mm-1.2 mm.

Preferably, the riveting technology in step D is overlapped in the stepping motor bottom plate shell mold, wherein the number of the overlapped riveting salient points is 4, the diameter of the overlapped button salient points is equal to the diameter of the hole, and the height of the protrusion is 0.5mm-0.55 mm.

Preferably, the riveting process in the step E for the inner mold stack of the bottom plate and the casing of the stepping motor is provided, wherein the aperture of the right hole in the step E is 1mm-1.2 mm.

Compared with the prior art, the invention has the beneficial effects that: the invention adopts the in-mold riveting process to replace the spot welding process, thereby omitting the spot welding process and related equipment; the folding and riveting process saves equipment and manpower, so that the production cost can be greatly reduced, and meanwhile, the production efficiency can be greatly improved to about 500 percent.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, the present invention provides the following technical solutions: a technology for riveting a bottom plate and a shell of a stepping motor in a mold comprises the following steps:

A. the shell part 2 is pre-punched with four overlapped riveting salient points 4 and two positioning holes 3;

B. stamping and punching the shell part 2, and cleaning and drying the shell part for later use;

C. placing the shell into a vibrating disc of a stack riveting die;

E. pressing the die material belt of the bottom plate 1 under the periodic action of the cylinder to rivet;

And B, cleaning the surface of the shell by using a detergent during cleaning in the step A, and repeatedly flushing by using clean water after the detergent is removed.

And C, punching 4 holes with the same diameter by adopting a stack riveting process, wherein the diameter of each hole is 1.0-1.2 mm.

And D, arranging 4 overlapped riveting convex points, wherein the diameters of the 4 overlapped riveting convex points are consistent with the diameter of the hole, and the height of the protrusion is 0.5mm-0.55 mm.

And E, the aperture of the positive hole is 1mm-1.2 mm.

In conclusion, the in-mold stack riveting process is adopted to replace the spot welding process, so that the spot welding process and related equipment are omitted; the folding and riveting process saves equipment and manpower, so that the production cost can be greatly reduced, and meanwhile, the production efficiency can be greatly improved to about 500 percent.

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.

Claims

1. The technology for laminating and riveting the bottom plate and the shell of the stepping motor in the mold is characterized in that: the method comprises the following steps:

A. the machine shell part (2) is pre-punched with four overlapped riveting salient points (4) and two positioning holes (3);

B. stamping and punching the shell part (2) for cleaning and drying for later use;

C. placing the shell into a vibrating disc of a stack riveting die;

E. pressing the die material belt of the bottom plate (1) under the periodic action of the cylinder to rivet;

2. The stepping motor bottom plate and shell mold inner-lamination riveting process according to claim 1, characterized in that: the shell and the bottom plate are firmly combined together in a mold mode.

3. The stepping motor bottom plate and shell mold inner-lamination riveting process according to claim 1, characterized in that: the die riveting process is original and is the latest process, and the original process (welding) is thoroughly changed.

4. The stepping motor bottom plate and shell mold inner-lamination riveting process according to claim 1, characterized in that: and C, punching 4 holes with the same diameter by adopting a stack riveting process, wherein the diameter of each hole is 1mm-1.2 mm.

5. The stepping motor bottom plate and shell mold inner-lamination riveting process according to claim 1, characterized in that: and D, arranging 4 button-overlapping convex points, wherein the diameters of the 4 button-overlapping convex points are consistent with the diameter of the hole, and the height of each protrusion is 0.5-0.55 mm.

6. The stepping motor bottom plate and shell mold inner-lamination riveting process according to claim 1, characterized in that: and E, the aperture of the pilot hole is 1.0mm-1.2 mm.