Automatic feeding device for rolling thread on shaft core

By designing an automatic feeding device for thread rolling of the shaft core, and using a combination of electromagnet fixing and rotary motor stepper motor, the automatic feeding and unloading of the motor shaft core is realized, which solves the problems of excessive manual operation and low efficiency of thread rolling machine, and improves processing efficiency and product quality consistency.

CN122142211APending Publication Date: 2026-06-05ZHONGSHAN GCHIMAY ELECTRIC APPLIANCE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHONGSHAN GCHIMAY ELECTRIC APPLIANCE
Filing Date
2026-04-24
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

The existing thread rolling machines lack automatic feeding devices, which means that the feeding, positioning and unloading of motor shaft cores require a lot of manual operation, resulting in high labor intensity, difficulty in ensuring feeding position accuracy, low processing efficiency and inability to meet the needs of mass production.

Method used

Design an automatic feeding device for thread rolling of shaft cores, which uses a shaft core tray, a rotary motor and a stepper motor. The shaft core is fixed by an electromagnet to achieve precise alignment and automatic feeding in steps. The feeding and unloading are automatically completed by combining the actions of the rotary motor and the stepper motor.

Benefits of technology

It significantly reduces manual operation, improves the efficiency of thread rolling and the stability of product quality, and realizes automatic and orderly feeding of motor shaft cores, making it suitable for mass production.

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Abstract

The application discloses a kind of automatic feeding device of shaft core thread rolling, it includes shaft core material tray, rotating motor, stepping motor and rack seat;Shaft core material tray ring is equipped with several material groove positions for placing motor shaft core;The center of rack seat is provided with through cavity, stepping motor and material removal motor are installed in through cavity, shaft core material tray is installed in the rotating end of rotating motor, and shaft core material tray is rotated by rotating motor drive, to adjust the motor shaft core position on shaft core material tray;The piston rod of stepping motor is connected rotating motor to drive rotating motor to move back and forth, to drive motor shaft core on shaft core material tray to move to thread rolling machine;It has simple structure, compact cooperation, and the advantages such as reasonable design;Therefore, it is a kind of product with superior performance in technicality and economy.
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Description

[Technical Field] This invention relates to an automatic feeding device for thread rolling of shaft cores. [Background Technology] Currently, threading motor shafts on Swiss-type lathes suffers from low efficiency. To improve production efficiency, some manufacturers have added specialized thread rolling machines for thread processing. However, existing thread rolling machines lack matching automatic feeding fixtures, requiring significant manual operation for shaft loading, positioning, and unloading. This results in excessive manual intervention, high labor intensity, difficulty in ensuring feeding accuracy, and processing efficiency still insufficient for mass production needs. Therefore, there is an urgent need for a device that can be used in conjunction with thread rolling machines to achieve automatic and orderly feeding and unloading of motor shafts, thereby improving overall processing efficiency and product quality stability. [Summary of the Invention] To address at least one of the aforementioned problems, this invention proposes a novel structural solution. The automatic thread rolling feeding device for this shaft core adopts the following technical solution: An automatic feeding device for thread rolling of shaft cores includes a shaft core tray, a rotary motor, a stepper motor, and a frame base; The shaft core material tray ring is provided with several material slots for placing the motor shaft core; The frame base has a central cavity, in which a stepper motor and a stripper motor are installed. The core material tray is installed on the rotating end of a rotary motor. The rotary motor drives the core material tray to rotate, thereby adjusting the position of the motor core on the core material tray. The piston rod of the stepper motor is connected to the rotary motor to drive the rotary motor to move back and forth, thereby moving the motor core on the core material tray toward the thread rolling machine.

[0001] Preferably, a slide rail is provided inside the cavity, a stepper motor is fixed to one end of the slide rail, and a rotary motor is slidably connected to the slide rail through a slide block.

[0002] Preferably, the core tray has a recessed annular groove, and an electromagnet is installed inside the annular groove. The core tray is made of iron so that it becomes magnetic when the electromagnet is energized.

[0003] Preferably, the outer end of the feed trough is open to allow the motor shaft to be inserted.

[0004] Preferably, the outer ends of the feed trough extend outward at both sides to increase the feeding space.

[0005] The beneficial effects of this invention compared to the prior art are as follows: This device uses a stepper motor to drive the forward and backward movement of the feeding mechanism, achieving precise alignment with the thread rolling machine's processing position and automatic step-by-step feeding, significantly reducing manual operation. After processing, the electromagnet is de-energized and the material tray rotates, allowing the shaft core to automatically slide into the material box along the material groove, completing the unloading process. This device has a compact structure, reliable operation, and effectively improves the production efficiency of thread rolling, ensuring consistent product quality. It is also durable and suitable for batch thread rolling of motor shaft cores. It boasts advantages such as simple structure, compact fit, and reasonable design; therefore, it is a product with superior technical and economic performance. [Attached Image Description] Figure 1 A schematic diagram of the automatic feeding device for thread rolling of shaft cores in a preferred embodiment of the present invention; Figure 2 This is a schematic diagram of the shaft core tray in a preferred embodiment of the present invention; Figure 3 This is a schematic diagram of the internal structure of the automatic thread rolling feeding device for the shaft core in a preferred embodiment of the present invention.

Detailed Implementation Methods

[0006] In this invention, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0007] The following description, in conjunction with the accompanying drawings, further illustrates specific embodiments of the present invention, making the technical solution and its beneficial effects clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the invention.

[0008] The preferred embodiments provided by the present invention are as follows: Figures 1-3 As shown, an automatic feeding device for thread rolling of shaft cores includes a shaft core tray 1, a rotary motor 2, a stepper motor 3, and a frame base 4. The shaft core tray 1 has several grooves 11 for placing motor shaft cores 5. The outer ends of the grooves 11 are open to allow the motor shaft cores 5 to be inserted. The outer ends of the grooves 11 extend outwards on both sides to increase the feeding space. The shaft core tray 1 has a recessed annular groove 12, and an electromagnet 13 is built into the annular groove 12. The shaft core tray 1 is made of iron so that it becomes magnetic when the electromagnet 13 is energized. The shaft core tray is fixed to the rotor of the rotary motor by a flange. To accommodate motor shaft cores with different machining diameters, the end diameter of the grooves can be set to different sizes to enhance the versatility of the workpieces.

[0009] The frame base 4 has a central cavity 41, within which a slide rail 42 is installed. A stepper motor 3 is fixed to one end of the slide rail 42, and a rotary motor 2 is slidably connected to the slide rail 42 via a slide block. The stepper motor 3 is connected to the slide block of the rotary motor 2. The stepper motor 3 and the stripper motor are installed in the cavity 41. The core material tray 1 is installed on the rotating end of the rotary motor 2. The rotary motor 2 drives the core material tray 1 to rotate, thereby adjusting the position of the motor core 5 on the core material tray 1. The piston rod of the stepper motor 3 is connected to the rotary motor 2 to drive the rotary motor 2 to move back and forth, thereby moving the motor core 5 on the core material tray 1 toward the thread rolling machine. Operating principle: The spindle tray 1 uses only one vertical groove at the top (specifically marked 6 in the figure), which is aligned with the processing position of the thread rolling machine. The motor spindle 5 to be thread rolled is placed into the groove 11 from the outer end. Under the action of gravity, the motor spindle 5 falls to the end of the groove 11. Since the groove 11 remains vertical and the spindle tray 1 has a certain thickness, the spindle tray 1 can support the motor spindle 5. When thread rolling is required, the electromagnet 13 is powered on and activated. The electromagnet 13 further attracts the motor spindle 5, thereby fixing the motor spindle 5. At this time, the stepper motor 3 is started, and the transmission and feeding are carried out step by step according to the processing requirements, replacing most of the manual operation. Durable and long-lasting, ensuring product quality and production efficiency; after processing, the stepper motor 3 drives the shaft core tray 1 to retract through the rotary motor 2. A material box is placed on one side of the shaft core tray 1. When the electromagnet 13 is de-energized, the rotary motor 2 rotates the shaft core tray 1 to make it rotate, so that the motor shaft core 5, which loses its attraction, falls into the material box along the material groove 11.

[0010] In the description of this specification, references to terms such as "an embodiment," "preferred," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. Illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0011] Based on the above description of the structure and principle, those skilled in the art should understand that the present invention is not limited to the specific embodiments described above. Improvements and substitutions made using techniques known in the art based on the present invention all fall within the protection scope of the present invention and should be defined by the claims.

Claims

1. An automatic feeding device for thread rolling of shaft cores, characterized in that: It includes a core tray, a rotary motor, a stepper motor, and a frame base; The shaft core material tray ring is provided with several material slots for placing the motor shaft core; The frame base has a through cavity in the center, and the stepper motor and the unloading motor are installed in the through cavity. The shaft core tray is installed on the rotating end of the rotary motor. The rotary motor drives the shaft core tray to rotate, so as to adjust the position of the motor shaft core on the shaft core tray. The piston rod of the stepper motor is connected to the rotary motor to drive the rotary motor to move back and forth, thereby moving the motor shaft on the shaft core plate toward the thread rolling machine.

2. The automatic feeding device for thread rolling of shaft cores according to claim 1, characterized in that: The cavity is equipped with a slide rail, a stepper motor is fixed to one end of the slide rail, and a rotary motor is slidably connected to the slide rail through a slide block.

3. The automatic feeding device for thread rolling of shaft cores according to claim 1, characterized in that: The spindle tray has a recessed annular groove, and an electromagnet is installed inside the annular groove. The spindle tray is made of iron so that it becomes magnetic when the electromagnet is energized.

4. The automatic feeding device for thread rolling of shaft cores according to claim 1, characterized in that: The outer end of the feed trough is open to allow the motor shaft to be inserted.

5. The automatic feeding device for thread rolling of shaft cores according to claim 1, characterized in that: The outer ends of the feed trough are inclined outward on both sides to increase the feeding space.