Closed-loop control structure of stepping motor

Abstract

The utility model relates to the technical field of closed loop of stepping motors, in particular to a closed loop control structure of a stepping motor, which comprises a closed loop control circuit board, a bolt and an OLED (Organic Light Emitting Diode) display interface are arranged on the closed loop control circuit board, a motor shell is arranged on the right side of the closed loop control circuit board, an installation screw groove and a positioning screw groove are arranged on the motor shell, and the installation screw groove and the positioning screw groove are arranged on the right side of the closed loop control circuit board. An OLED screen is arranged on the left side of the closed-loop control circuit board, a contact pin is arranged on the OLED screen, the contact pin is connected with an OLED display interface in an inserted mode, voltage stabilizing frame bodies are arranged on the two sides of the OLED screen, each voltage stabilizing frame body is composed of a connecting strip, a stabilizing pressing piece, a damping pressing pad and a stud, a stabilizing side plate is arranged on the side wall of the OLED screen, and the stabilizing side plate is connected with the connecting strip. A stable inserting groove is formed in the stable side plate, and a stud cap is arranged on the stud. The installation stability of the OLED screen on the stepping motor closed-loop control structure is improved, and the use flexibility of the voltage stabilizing frame body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stepper motor closed-loop, in particular to a stepper motor closed-loop control structure. Background Art

[0002] A stepper motor is an electromagnetic device that converts electrical pulse signals into mechanical displacement. It is generally composed of a motor housing, bearings, brushes, rotors, magnetic poles, iron cores, controllers, etc. Stepper motors are widely used in various industrial control systems, automation equipment, precision machinery, office equipment, medical equipment, aerospace, household appliances and other fields.

[0003] Publication No. CN210518151U discloses a closed-loop control structure for a stepper motor, including a stepper motor, a radially magnetized magnet, a magnetic encoder, a mounting plate and an OLED screen. The output shaft of the stepper motor passes through the back of the stepper motor, the radially magnetized magnet is located at the end of the output shaft of the stepper motor, the magnetic encoder faces the radially magnetized magnet, a microcontroller, an OLED display interface, a stepper motor drive circuit, a stepper motor interface plug-in, a host computer signal interface plug-in and a switch circuit are arranged on the mounting plate, the host computer signal interface plug-in is electrically connected to the switch circuit, the OLED screen is fixed to the side of the mounting plate away from the stepper motor, the OLED screen is electrically connected to the OLED display interface, and the specific working principle of the closed-loop control structure of the stepper motor is the public technology and need not be elaborated.

[0004] At present, in the above-mentioned stepper motor closed-loop control structure, the closed-loop control circuit board is installed on the motor body by bolts, and then the OLED screen is plugged and installed with the preset OLED display interface on the closed-loop control circuit board through pins. Since the pin-type installation has low stability, the motor body vibrates during use, which will easily cause the pins on the OLED screen to fall off from the OLED display interface, reducing the installation stability of the OLED screen on the stepper motor closed-loop control structure.

[0005] The above problems are widespread and urgently need to be improved. Utility Model Content

[0006] The utility model aims to solve the above-mentioned shortcomings in the prior art and proposes a closed-loop control structure for a stepping motor.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A stepper motor closed-loop control structure is designed, including a closed-loop control circuit board, the closed-loop control circuit board is provided with bolts and an OLED display interface, a motor housing is provided on the right side of the closed-loop control circuit board, the motor housing is provided with mounting screw grooves and positioning screw grooves, an OLED screen is provided on the left side of the closed-loop control circuit board, the OLED screen is provided with pins, the pins are plugged with the OLED display interface, voltage stabilizing frame bodies are provided on both sides of the OLED screen, the voltage stabilizing frame body is composed of a connecting strip, a stabilizing pressure sheet, a damping pressure pad, and a stud, a stabilizing side panel is provided on the side wall of the OLED screen, a stabilizing slot is provided on the stabilizing side panel, and a column cap is provided on the stud.

[0009] Furthermore, the bolt passes through the closed-loop control circuit board and is threadedly connected to the mounting screw groove. The bolt and the mounting screw groove form a group, and there are four groups in total that are symmetrically arranged.

[0010] Furthermore, the stabilizing side panel is an elongated strip structure as a whole, there are two stabilizing side panels which are symmetrically arranged on the left and right side walls of the OLED screen respectively, and the side section of the stabilizing slot is a rectangular groove which is plugged into the stabilizing pressing sheet.

[0011] Furthermore, the stabilizing pressing plates are two symmetrically arranged front and back and are respectively fixed to the front and rear ends of the connecting strip, and the front cross-section of the stabilizing pressing plates is a Z-shaped structure.

[0012] Furthermore, there are two studs symmetrically arranged front and back, and the studs pass through the connecting strip and are threadedly connected to the positioning screw grooves.

[0013] Furthermore, the damping pressure pad is arranged at the lower end of the stabilizing pressure plate, and the damping pressure pad is made of NBR nitrile rubber and has a thickness of seventy to eighty microns.

[0014] Furthermore, the column cap is arranged at the top end of the stud, and a finger-locking groove is opened on the column cap. The top-view cross-section of the finger-locking groove is an arc-shaped inner groove and there are six of them arranged in a circle.

[0015] The utility model proposes a closed-loop control structure for a stepping motor, which has the following beneficial effects:

[0016] 1. The utility model symmetrically arranges the voltage stabilizing frame body at the back end of the motor housing, and symmetrically arranges a stable side panel structure with a stable slot on the outer shell side wall of the OLED screen, thereby realizing symmetrical and stable plug-in positioning of the OLED screen plugged into the closed-loop control circuit board, thereby improving the overall installation stability of the OLED screen on the closed-loop control structure of the stepper motor.

[0017] 2. The utility model provides a Z-shaped stabilizing pressure sheet on the voltage stabilizing frame body and a damping pressure pad structure. When the OLED screen is stably plugged in and positioned, the closed-loop control circuit board can be stably pressed at the same time, thereby further improving the flexibility of the voltage stabilizing frame body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an exploded schematic diagram of the overall structure of the utility model;

[0019] Figure 2 A first-perspective stereogram of the overall structure of the utility model in an installed state;

[0020] Figure 3 For the utility model Figure 2 A partial enlarged view of the Y position in the middle;

[0021] Figure 4 For the utility model Figure 3 A three-dimensional schematic diagram of the middle voltage stabilizing frame body;

[0022] Figure 5 It is a second perspective stereogram of the overall structure of the utility model in an installed state.

[0023] In the figure: 1 closed-loop control circuit board; 11 bolt; 12 OLED display interface; 2 motor housing; 21 mounting screw groove; 22 positioning screw groove; 3 OLED screen; 31 pin; 4 stabilizing side panel; 41 stabilizing slot; 5 stabilizer frame body; 51 connecting strip; 52 stabilizing pressure sheet; 521 damping pressure pad; 53 stud; 54 column cap; 541 finger buckle groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Reference Figure 1-5A stepper motor closed-loop control structure comprises a closed-loop control circuit board 1, on which a bolt 11 and an OLED display interface 12 are provided, a motor housing 2 is provided on the right side of the closed-loop control circuit board 1, and a mounting screw groove 21 and a positioning screw groove 22 are provided on the motor housing 2, an OLED screen 3 is provided on the left side of the closed-loop control circuit board 1, and a pin 31 is provided on the OLED screen 3, and the pin 31 is plugged with the OLED display interface 12, and voltage stabilizing frame bodies 5 are provided on both sides of the OLED screen 3, and the voltage stabilizing frame bodies 5 are composed of a connecting strip 51, a stabilizing pressure sheet 52, a damping pressure pad 521, and a stud 53, and a stabilizing side panel 4 is provided on the side wall of the OLED screen 3, and a stabilizing slot 41 is provided on the stabilizing side panel 4, and a column cap 54 is provided on the stud 53.

[0026] The closed-loop control circuit board 1, motor housing 2, OLED screen 3, pin 31, and OLED display interface 12 recorded in this patent are all related structures on the closed-loop control structure of the stepper motor. Please refer to the related structures in publication number CN210518151U. They are prior art and the related principles have been disclosed. Some existing structures are not drawn and marked and need not be described in detail.

[0027] The relevant structures on the voltage stabilizing frame body 5 are all made of plastic steel, which is durable, high in strength and insulated.

[0028] In detail, the bolt 11 passes through the closed-loop control circuit board 1 and is threadedly connected to the mounting screw groove 21. The bolt 11 and the mounting screw groove 21 form a group, and there are four groups symmetrically arranged in total, which further improves the installation stability of the closed-loop control circuit board 1 and avoids shaking of the closed-loop control circuit board 1.

[0029] Furthermore, the stabilizing side panel 4 is an elongated structure as a whole, and there are two stabilizing side panels 4 which are symmetrically arranged on the left and right side walls of the OLED screen 3 respectively. The side section of the stabilizing slot 41 is a rectangular groove and is plugged into the stabilizing pressure sheet 52. The rectangular plug-in structure has strong stability, and can realize stable plug-in positioning of the left and right sides of the OLED screen 3.

[0030] Furthermore, the two stabilizing pressure plates 52 are symmetrically arranged front and back and are fixed to the front and rear ends of the connecting strip 51 respectively. The front cross-section of the stabilizing pressure plate 52 is a Z-shaped structure. When the voltage stabilizing frame body 5 is installed on the motor housing 2, the Z-shaped stabilizing pressure plate 52 will be stably pressed by the damping pressure pad 521 and the end face of the closed-loop control circuit board 1, which is very flexible to use.

[0031] In more detail, there are two studs 53 that are symmetrical front and back. The studs 53 pass through the connecting strip 51 and are threadedly connected to the positioning screw groove 22. The threaded connection and fixing method of the four groups of studs 53 and the positioning screw groove 22 greatly improves the installation stability when the stabilizing pressure plate 52 is inserted into the stabilizing slot 41.

[0032] In general, the damping pressure pad 521 is arranged at the lower end of the stabilizing pressure plate 52. The damping pressure pad 521 is made of NBR nitrile rubber and has a thickness of seventy to eighty microns. The NBR nitrile rubber material has excellent oil resistance, wear resistance and aging resistance. At the same time, the body has high damping elasticity and insulation to avoid crushing the closed-loop control circuit board 1.

[0033] Finally, the column cap 54 is arranged at the top of the stud 53, and a finger-locking groove 541 is opened on the column cap 54. The top-view cross-section of the finger-locking groove 541 is an arc-shaped inner groove, and there are six of them arranged in a circle. By inserting a finger into the finger-locking groove 541 and rotating it, the stud 53 can be driven to rotate forward and reverse through the column cap 54, thereby realizing convenient disassembly and assembly of the voltage stabilizing frame body 5, and disassembly and assembly can be achieved without using tools such as screwdrivers, which is very convenient.

[0034] The finger-grip groove 541 with an arc-shaped inner groove structure improves the comfort and anti-slip effect when fingers are inserted.

[0035] Working method: During the specific installation, first install and fix the closed-loop control circuit board 1 on the motor housing 2 through the bolts 11 and the mounting screw grooves 21, and then plug the OLED screen 3 with the OLED display interface 12 on the closed-loop control circuit board 1 through the pins 31. Next, take the voltage stabilizer frame body 5 and insert it into the stabilizing slot 41 on the stabilizing side panel 4 through its stabilizing pressure piece 52. Then, pass the stud 53 through the through-hole preset on the connecting strip 51 and rotate the column cap 54 clockwise to drive the stud 53 to rotate clockwise and lock it with the positioning screw groove 22 thread, so as to realize the symmetrical and stable plug-in positioning of the OLED screen 3 plugged on the closed-loop control circuit board 1, thereby improving the installation stability of the OLED screen 3 on the closed-loop control structure of the stepper motor as a whole.

[0036] In addition, when the OLED screen 3 is stably plugged in and positioned, at the same time, the damping pressure pad 521 at the bottom of the stabilizing pressure sheet 52 also stably presses the end surface of the closed-loop control circuit board 1, further improving the flexibility of use of the stabilizing frame body 5.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A closed-loop control structure for a stepping motor, comprising a closed-loop control circuit board (1), characterized in that: The closed-loop control circuit board (1) is provided with bolts (11) and an OLED display interface (12); a motor housing (2) is provided on the right side of the closed-loop control circuit board (1); a mounting screw groove (21) and a positioning screw groove (22) are provided on the motor housing (2); an OLED screen (3) is provided on the left side of the closed-loop control circuit board (1); a plug pin (31) is provided on the OLED screen (3); the plug pin (31) is plugged into the OLED display interface (12); a voltage stabilizing frame body (5) is provided on both sides of the OLED screen (3); the voltage stabilizing frame body (5) is composed of a connecting strip (51), a stabilizing pressure sheet (52), a damping pressure pad (521), and a stud (53); a stabilizing side panel (4) is provided on the side wall of the OLED screen (3); a stabilizing slot (41) is provided on the stabilizing side panel (4); and a column cap (54) is provided on the stud (53).

2. A stepper motor closed-loop control structure according to claim 1, characterized in that: The bolt (11) passes through the closed-loop control circuit board (1) and is threadedly connected to the mounting screw groove (21). The bolt (11) and the mounting screw groove (21) form a group, and there are four groups in total that are symmetrically arranged.

3. A stepper motor closed-loop control structure according to claim 1, characterized in that: The stabilizing side panel (4) is an elongated strip-shaped structure as a whole. There are two stabilizing side panels (4) which are symmetrically arranged on the left and right side walls of the OLED screen (3) respectively. The side cross-section of the stabilizing slot (41) is a rectangular groove and is plugged into the stabilizing pressing sheet (52).

4. A stepper motor closed-loop control structure according to claim 1, characterized in that: The stabilizing pressing plates (52) are two symmetrically arranged front and back and are respectively fixed to the front and rear ends of the connecting strip (51). The front view cross section of the stabilizing pressing plates (52) is a Z-shaped structure.

5. A stepper motor closed-loop control structure according to claim 1, characterized in that: There are two studs (53) symmetrically arranged front and back, and the studs (53) pass through the connecting strip (51) and are threadedly connected to the positioning screw groove (22).

6. A stepper motor closed-loop control structure according to claim 1, characterized in that: The damping pressure pad (521) is arranged at the lower end of the stabilizing pressure plate (52), and the damping pressure pad (521) is made of NBR nitrile rubber and has a thickness of seventy to eighty micrometers.

7. A stepper motor closed-loop control structure according to claim 1, characterized in that: The column cap (54) is arranged at the top end of the stud (53), and a finger-locking groove (541) is provided on the column cap (54). The top view cross section of the finger-locking groove (541) is an arc-shaped inner groove and is arranged in a circle.

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