Clamping tool for machining shaft core of stepping motor

Abstract

The utility model relates to the technical field of motor production, in particular to a clamping tool for processing a shaft core of a stepping motor, which is reasonable in structural design and mainly comprises a horizontal table, a first side plate, a second side plate, a horizontal push rod, a movable plate, a guide rod, a fixed clamping head and a movable clamping head. Each of the fixed clamping head and the movable clamping head is provided with a block body, a semicircular clamping cover, a semicircular gear ring and a semicircular non-slip mat, a full-circle gear ring formed by butt joint of the two semicircular gear rings can move in a full-circle clamping cover formed by butt joint of the two semicircular clamping covers, and a driving gear used for driving the full-circle gear ring to rotate is further arranged in the movable clamping head; in this way, batch clamping of the stepping motor shaft cores can be achieved, the stepping motor shaft cores can be driven to rotate after being clamped, and the requirement for end grinding is met.

Description

Technical Field

[0001] The utility model relates to the technical field of motor production, in particular to a clamping tool used for machining a stepper motor shaft core. Background Art

[0002] Stepper motors, also known as pulse motors, work by converting input electrical pulse signals into mechanical angular displacement or linear displacement. This conversion relationship is linear, that is, the output angular displacement or linear displacement is proportional to the number of input pulses, and the speed is proportional to the pulse frequency. This characteristic of stepper motors makes it very suitable for applications that require precise control of position and speed. The shaft core design of stepper motors allows the motor to perform angle control or speed control according to specific instructions. In angle control mode, the stator winding will be switched once for each input pulse, and the output shaft will rotate through a fixed angle, which is called the step angle. In speed control mode, the stepper motor can rotate continuously through continuous pulse input, and its speed is directly related to the pulse frequency. In addition, stepper motors also have self-locking capabilities, which can keep the motor in a specific position by keeping the winding controlled by the last pulse energized when the input control pulse stops, achieving precise position positioning.

[0003] During the machining process of the stepper motor shaft core, a clamping tool is required to clamp it. However, the traditional clamping tool used for stepper motor shaft core machining has shortcomings when used. First, it cannot drive the shaft core to rotate after clamping to meet the requirements of end grinding; second, it cannot achieve batch clamping, and the clamping efficiency is low. Therefore, it is necessary to optimize and improve the traditional clamping tool used for stepper motor shaft core machining. Utility Model Content

[0004] The utility model aims to overcome the above problems existing in the traditional technology and provide a clamping tool for machining the shaft core of a stepping motor.

[0005] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0006] A clamping tool for machining a stepper motor shaft core, comprising a horizontal platform, a first side plate, a second side plate, a horizontal push rod, a movable plate, a guide rod, a fixed clamping head and a movable clamping head, wherein the first side plate and the second side plate are symmetrically fixed on both sides of the horizontal platform, the horizontal push rod is fixed on the second side plate, the movable end of the horizontal push rod is installed with the movable plate, one side of the movable plate is fixed with a guide rod penetrating the second side plate, the other side of the movable plate is fixed with a plurality of fixed clamping heads, the inner side of the first side plate is fixed with a plurality of movable clamping heads matched with the fixed clamping heads, the fixed clamping heads and the corresponding movable clamping heads clamp the shaft core together;

[0007] The fixed clamping head includes a first block, a first semicircular clamping cover, a first semicircular gear ring and a first semicircular anti-slip pad; the dynamic clamping head includes a second block, a second semicircular clamping cover, a second semicircular gear ring, a second semicircular anti-slip pad and a driving gear; the first / second semicircular clamping cover is embedded and fixed inside the first / second block, the first / second semicircular clamping cover is internally movable and restricted by the first / second semicircular gear ring, the outer side of the first / second semicircular gear ring is evenly distributed with tooth grooves matching the driving gear, and the inner side of the first / second semicircular gear ring is installed with the first / second semicircular anti-slip pad.

[0008] Furthermore, in the above-mentioned clamping tool for processing the shaft core of the stepper motor, the length direction of the guide rod and the pushing direction of the horizontal push rod are parallel to each other.

[0009] Furthermore, in the above-mentioned clamping tooling for processing the stepper motor shaft core, the cross-section of each of the first semicircular gear ring and the second semicircular gear ring is a T-shaped structure that is wide inside and narrow outside, and the first semicircular gear ring and the second semicircular gear ring are butt-jointed to form a full-circular gear ring.

[0010] Furthermore, in the above-mentioned clamping tooling for processing the stepper motor shaft core, the first semicircular clamping cover and the second semicircular clamping cover are each provided with a semicircular movable cavity inside, and the cross-section of the semicircular movable cavity is a T-shaped structure. The two semicircular movable cavities are connected to form an annular movable cavity that facilitates the rotation of the full-circle gear ring.

[0011] Furthermore, in the above-mentioned clamping tool for machining the shaft core of a stepper motor, an avoidance opening is provided on the second semicircular clamping cover to facilitate the driving gear to enter its inner semicircular movable cavity.

[0012] Furthermore, in the above-mentioned clamping tool for processing the shaft core of the stepper motor, the first semicircular anti-slip pad and the second semicircular anti-slip pad are made of wear-resistant silicone material.

[0013] Furthermore, in the above-mentioned clamping tool for processing the shaft core of the stepper motor, the driving gears rotate independently of each other, and each of the driving gears is driven to rotate by a corresponding servo motor installed on the lower side of the horizontal platform.

[0014] Furthermore, in the above-mentioned clamping tool for processing the shaft core of the stepper motor, the driving gear rotates synchronously through a synchronous belt assembly, and one of the driving gears is driven to rotate by a servo motor installed on the lower side of the horizontal platform.

[0015] The beneficial effects of the utility model are:

[0016] The utility model has a reasonable structural design and is mainly composed of a horizontal platform, a first side plate, a second side plate, a horizontal push rod, a movable plate, a guide rod, a fixed clamping head and a movable clamping head. The fixed clamping head and the movable clamping head are both provided with a block, a semicircular clamping cover, a semicircular gear ring and a semicircular anti-slip pad. The full-circular gear ring formed by connecting the two semicircular gear rings can move in the full-circular clamping cover formed by connecting the two semicircular clamping covers. The movable clamping head is also provided with a driving gear for driving the full-circular gear ring to rotate. In this way, batch clamping of the stepper motor shaft core can be realized, and the stepper motor shaft core can be driven to rotate after clamping it, thereby meeting the demand for end grinding.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall use state of the utility model;

[0020] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the fixed clamping head in the utility model;

[0022] Figure 4 It is a structural schematic diagram of the movable clamping head of the utility model;

[0023] Figure 5 It is a schematic diagram of the positions of the main components in the movable clamping head of the utility model;

[0024] Figure 6 It is a schematic diagram of the structure of the second semicircular clamping cover in the utility model after the avoidance opening is omitted;

[0025] Figure 7 It is a structural schematic diagram of the second semicircular gear ring in the utility model;

[0026] Figure 8 It is a structural schematic diagram of the second semicircular anti-slip pad in the utility model;

[0027] In the accompanying drawings, the components represented by the reference numerals are described as follows:

[0028] 1-horizontal platform, 2-first side plate, 3-second side plate, 4-horizontal push rod, 5-movable plate, 6-guide rod, 7-fixed clamping head, 701-first block, 702-first semicircular clamping cover, 703-first semicircular gear ring, 704-first semicircular anti-slip pad, 8-movable clamping head, 801-second block, 802-second semicircular clamping cover, 803-second semicircular gear ring, 804-second semicircular anti-slip pad, 805-driving gear, 9-axis core. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] like Figure 1-Figure 8 As shown, this embodiment is a clamping tool for machining the shaft core of a stepper motor, comprising a horizontal platform 1, a first side plate 2, a second side plate 3, a horizontal push rod 4, a movable plate 5, a guide rod 6, a fixed clamping head 7 and a movable clamping head 8. The first side plate 2 and the second side plate 3 are symmetrically fixed on both sides of the horizontal platform 1, the horizontal push rod 4 is fixed on the second side plate 3, the movable end of the horizontal push rod 4 is installed with the movable plate 5, and the guide rod 6 that passes through the second side plate 3 is fixed on one side of the movable plate 5. A plurality of fixed clamping heads 7 are fixed on the other side of the movable plate 5, and a plurality of movable clamping heads 8 that match the position of the fixed clamping heads 7 are fixed on the inner side of the first side plate 2, and the fixed clamping heads 7 and the corresponding movable clamping heads 8 clamp the shaft core 9 together.

[0031] In this embodiment, the fixed clamping head 7 includes a first block 701, a first semicircular clamping cover 702, a first semicircular gear ring 703 and a first semicircular anti-slip pad 704; the first block 701 is embedded with the first semicircular clamping cover 702, the internal movement of the first semicircular clamping cover 702 is restricted by the first semicircular gear ring 703, the outer side of the first semicircular gear ring 703 is evenly distributed with tooth grooves that cooperate with the driving gear 805, and the inner side of the first semicircular gear ring 703 is installed with the first semicircular anti-slip pad 704.

[0032] In this embodiment, the dynamic clamping head 8 includes a second block 801, a second semicircular clamping cover 802, a second semicircular gear ring 803, a second semicircular anti-slip pad 804 and a driving gear 805; the second block 801 is embedded and fixed with the second semicircular clamping cover 802, the second semicircular gear ring 803 is used to restrict the internal movement of the second semicircular clamping cover 802, the outer side of the second semicircular gear ring 803 is evenly distributed with tooth grooves that cooperate with the driving gear 805, and the inner side of the second semicircular gear ring 803 is installed with a second semicircular anti-slip pad 804.

[0033] In this embodiment, the length direction of the guide rod 6 and the pushing direction of the horizontal push rod 4 are parallel to each other.

[0034] In this embodiment, the cross-sections of the first semicircular gear ring 703 and the second semicircular gear ring 803 are each in a T-shaped structure that is wide inside and narrow outside. The first semicircular gear ring 703 and the second semicircular gear ring 803 are butt-jointed to form a full-circular gear ring.

[0035] In this embodiment, the first semicircular clamping cover 702 and the second semicircular clamping cover 802 are each provided with a semicircular movable cavity inside. The cross section of the semicircular movable cavity is a T-shaped structure. The two semicircular movable cavities are connected to form an annular movable cavity that facilitates the rotation of the full-circular gear ring.

[0036] In this embodiment, the second semicircular clamping cover 802 is provided with an escape opening for facilitating the driving gear 805 to enter the inner semicircular movable cavity thereof.

[0037] In this embodiment, the first semicircular anti-skid pad 704 and the second semicircular anti-skid pad 804 are made of wear-resistant silicone material.

[0038] In this embodiment, the driving gears 805 rotate independently of each other, and each driving gear 805 is driven to rotate by a corresponding servo motor installed on the lower side of the horizontal platform 1. Alternatively, the driving gears 805 rotate synchronously through a synchronous belt assembly, and one of the driving gears 805 is driven to rotate by a servo motor installed on the lower side of the horizontal platform 1.

[0039] A specific application of this embodiment is: this clamping tool is mainly composed of a horizontal platform 1, a first side plate 2, a second side plate 3, a horizontal push rod 4, a movable plate 5, a guide rod 6, a fixed clamping head 7 and a dynamic clamping head 8. The fixed clamping head 7 and the dynamic clamping head 8 are both provided with a block, a semicircular clamping cover, a semicircular gear ring and a semicircular anti-slip pad. The full-circular gear ring formed by connecting the two semicircular gear rings can move in the full-circular clamping cover formed by connecting the two semicircular clamping covers. The dynamic clamping head 8 is also provided with a driving gear 805 for driving the full-circular gear ring to rotate. In this way, batch clamping of the stepper motor shaft core 9 can be achieved, and the stepper motor shaft core 9 can be driven to rotate after clamping it, thereby meeting the requirements of end grinding.

[0040] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A clamping tool for machining a stepper motor shaft core, characterized in that: The horizontal platform comprises a first side plate, a second side plate, a horizontal push rod, a movable plate, a guide rod, a fixed clamping head and a movable clamping head, wherein the first side plate and the second side plate are symmetrically fixed on both sides of the horizontal platform, the horizontal push rod is fixed on the second side plate, the movable end of the horizontal push rod is installed with the movable plate, one side of the movable plate is fixed with a guide rod penetrating the second side plate, the other side of the movable plate is fixed with a plurality of fixed clamping heads, the inner side of the first side plate is fixed with a plurality of movable clamping heads matched with the fixed clamping heads, and the fixed clamping heads and the corresponding movable clamping heads clamp the shaft core together; The fixed clamping head includes a first block, a first semicircular clamping cover, a first semicircular gear ring and a first semicircular anti-slip pad; the dynamic clamping head includes a second block, a second semicircular clamping cover, a second semicircular gear ring, a second semicircular anti-slip pad and a driving gear; the first / second semicircular clamping cover is embedded and fixed inside the first / second block, the first / second semicircular clamping cover is internally movable and restricted by the first / second semicircular gear ring, the outer side of the first / second semicircular gear ring is evenly distributed with tooth grooves matching the driving gear, and the inner side of the first / second semicircular gear ring is installed with the first / second semicircular anti-slip pad.

2. The clamping tool for machining the shaft core of a stepper motor according to claim 1, characterized in that: The length direction of the guide rod is parallel to the propulsion direction of the horizontal push rod.

3. The clamping tool for machining the shaft core of a stepper motor according to claim 2, characterized in that: The cross-sections of the first semicircular gear ring and the second semicircular gear ring are respectively T-shaped structures that are wide inside and narrow outside. The first semicircular gear ring and the second semicircular gear ring are butt-jointed to form a full-circular gear ring.

4. The clamping tool for machining the shaft core of a stepper motor according to claim 3, characterized in that: The first semicircular clamping cover and the second semicircular clamping cover are each provided with a semicircular movable cavity inside, the cross section of the semicircular movable cavity is a T-shaped structure, and the two semicircular movable cavities are connected to form an annular movable cavity that is convenient for the rotation of the full-circular gear ring.

5. The clamping tool for machining the shaft core of a stepper motor according to claim 4, characterized in that: The second semicircular clamping cover is provided with an escape opening for facilitating the driving gear to enter the inner semicircular movable cavity thereof.

6. The clamping tool for machining the shaft core of a stepper motor according to claim 5, characterized in that: The first semicircular anti-skid pad and the second semicircular anti-skid pad are made of wear-resistant silicone material.

7. The clamping tool for machining a stepper motor shaft core according to any one of claims 1 to 6, characterized in that: The driving gears rotate independently of each other, and each driving gear is driven to rotate by a corresponding servo motor installed on the lower side of the horizontal platform.

8. The clamping tool for machining a stepper motor shaft core according to any one of claims 1 to 6, characterized in that: The driving gears are rotated synchronously through a synchronous belt assembly, and one of the driving gears is driven to rotate by a servo motor installed on the lower side of the horizontal platform.

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