Motor positioning device

Abstract

The utility model provides a motor positioning device which is used for positioning the initial position of a stepping motor, the stepping motor is used for driving a bearing rotating disc to rotate, and the motor positioning device comprises a positioning disc, a blocking type sensing unit and an encoder. The positioning disc is driven by the stepping motor and rotates synchronously with the bearing rotary disc. The interruption type sensing unit is arranged on one side of the positioning disc and is matched with the positioning disc to carry out interruption sensing of light rays. And the encoder is arranged below the positioning disc, is electrically connected to the stepping motor and can control the stepping motor to rotate. The starting position of the stepping motor can be set in advance through the positioning disc and the interruption type sensing unit, the encoder is used for positioning and correcting the rotation angle of the stepping motor after starting, and meanwhile fine adjustment can be carried out according to the condition of an asynchronous stepping motor and the weight and condition of a bearing rotary disc above.

Description

TECHNICAL FIELD

[0001] The present application relates to a positioning device, in particular to a motor positioning device. BACKGROUND

[0002] In the prior art electronic component manufacturing process, electronic components are generally transported to the receiving grooves on the periphery of the bearing turntable through the feeding track, and then the electronic components in the receiving grooves are transported to other packaging or detection stations by rotating the bearing turntable. Since the electronic products are light and thin, the volume of the internal electronic components is smaller, and therefore the precision of the starting rotation position and rotation angle of the bearing turntable needs to be higher to avoid abnormality during the transportation of the electronic components.

[0003] Therefore, how to improve the transportation precision of electronic components is an urgent goal for relevant manufacturers. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the present application is to provide a motor positioning device that can improve the above-mentioned shortcomings.

[0005] The motor positioning device of the present application is used to position the starting position of a step motor, the step motor is used to drive a bearing turntable to rotate, and the motor positioning device comprises a positioning disc, a blocking type sensing unit, and an encoder. The positioning disc is driven by the step motor and rotates synchronously with the bearing turntable. The blocking type sensing unit is arranged on one side of the positioning disc and cooperates with the positioning disc to perform light blocking sensing. The encoder is arranged below the positioning disc, and the encoder is electrically connected to the step motor and can control the rotation of the step motor.

[0006] Another feature of the present application is that a plurality of through grooves are arranged at intervals around the positioning disc, and the blocking type sensing unit cooperates with the through grooves of the positioning disc to perform light blocking sensing.

[0007] Another feature of the present application is that the blocking type sensing unit includes a transmitter and a receiver arranged above and below the positioning disc, respectively.

[0008] Another feature of the present application is that the bearing turntable has a plurality of receiving grooves arranged at intervals on the periphery thereof, and the number of through grooves of the positioning disc is the same as the number of receiving grooves of the bearing turntable.

[0009] Another feature of the present application is that the bearing turntable has a plurality of receiving grooves arranged at intervals on the periphery thereof, and the number of through grooves of the positioning disc is a multiple of the number of receiving grooves of the bearing turntable.

[0010] Another feature of the present application is that the motor positioning device further comprises an alarm unit electrically connected to the blocking type sensing unit, which receives the signal of the blocking type sensing unit and sends an alarm notification.

[0011] Another feature of the present application is that the alarm notification is an alarm sound or an alarm signal.

[0012] The present application has the advantage that the motor positioning device can set the starting position of the stepper motor in advance through the positioning disc and the interruptive induction unit, the encoder can position and correct the rotation angle after the starting of the stepper motor, and can also fine tune according to the conditions of different stepper motors and the weight and conditions of the upper load turntable. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a perspective view illustrating a preferred embodiment of the motor positioning device of the present application;

[0014] Figure 2 is a partially enlarged perspective view illustrating the structure of an interruptive induction unit.

[0015] BRIEF DESCRIPTION OF DRAWINGS

[0016] 10. Stepper motor

[0017] 11. Load turntable

[0018] 111. Receiving groove

[0019] 2. Positioning disc

[0020] 21. Through groove

[0021] 3. Interruptive induction unit

[0022] 31. Transmitter

[0023] 32. Receiver

[0024] 4. Encoder DETAILED DESCRIPTION

[0025] The preferred embodiments of the present application will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present application can be more easily understood by those skilled in the art, and the scope of protection of the present application can be more clearly defined. Before the detailed description, it should be noted that similar components are denoted by the same reference numerals. The directional terms mentioned in the following embodiments, such as up, down, left, right, front, back, bottom, top, etc., are only reference directions of the accompanying drawings. Therefore, the directional terms are used for explanation, not for limiting the present application.

[0026] Reference is made to Figure 1For the preferred embodiment of the motor positioning device of the present application, to position the starting position of a stepping motor 10 used to drive a carrier turntable 11 to rotate, the motor positioning device comprises a positioning disc 2, a break-type sensing unit 3, and an encoder 4. The positioning disc 2 is driven by the stepping motor 10 and rotates synchronously with the carrier turntable 11. The break-type sensing unit 3 is disposed on one side of the positioning disc 2 and performs break-type sensing of light in cooperation with the positioning disc 2. The encoder 4 is disposed below the positioning disc 2, and the encoder 4 is electrically connected to the stepping motor 10 and can control the stepping motor 10 to rotate.

[0027] Referring to Figure 2 , the positioning disc 2 is provided with a plurality of through grooves 21 at intervals around the positioning disc 2, and the break-type sensing unit 3 performs break-type sensing of light in cooperation with the through grooves 21 of the positioning disc 2. More specifically, the break-type sensing unit 3 includes a transmitter 31 and a receiver 32 disposed above and below the positioning disc 2, respectively. As shown in Figure 1 , the carrier turntable 11 has a plurality of receiving grooves 111 disposed at intervals around the periphery of the carrier turntable 11, and the number of the through grooves 21 of the positioning disc 2 is the same as the number of the receiving grooves 111 of the carrier turntable 11. In some embodiments, the number of the through grooves 21 of the positioning disc 2 can also be a multiple of the number of the receiving grooves 111 of the carrier turntable 11.

[0028] Referring to Figure 1 and Figure 2 , the motor positioning device of the present application can use the break-type sensing unit 3 to position the starting position of the stepping motor 10. When the stepping motor 10 is started, it coaxially drives the carrier turntable 11 and the positioning disc 2 to rotate. At this time, the transmitter 31 of the break-type sensing unit 3 continuously sends light signals, and when the carrier turntable 11 and the positioning disc 2 are rotated to the correct position, the light signals pass through the through grooves 21 of the positioning disc 2 and are received by the receiver 32. If the carrier turntable 11 has an error in the rotation angle or speed and is not rotated to the correct position, the light signals sent by the transmitter 31 of the break-type sensing unit 3 cannot pass through the through grooves 21 of the positioning disc 2, resulting in the receiver 32 being unable to receive the light signals. The motor positioning device further comprises a warning unit electrically connected to the break-type sensing unit 3, for receiving signals from the break-type sensing unit 3 and issuing a warning notification. When the receiver 32 is unable to receive the light signals, the warning unit issues a warning notification. The warning notification can be a warning sound or a warning signal, notifying the operator to handle it.

[0029] The operator can fine-tune the rotation of the stepping motor 10 through the encoder 4, ensuring that the stepping motor 10 can drive the carrier turntable 11 and the positioning disc 2 to rotate to the correct position. In addition, the encoder 4 can also cooperate with the blocking induction unit 3 to position the starting position of the stepping motor 10. After the blocking induction unit 3 positions the starting position of the stepping motor 10, the encoder 4 can calculate the angle and speed of subsequent rotation. Furthermore, when the machine is replaced with different models or different specifications of stepping motors 10, the encoder 4 can quickly fine-tune the starting position or the rotation angle of the stepping motor 10, and can also fine-tune according to the conditions of different stepping motors 10 and the weight and conditions of the carrier turntable 11 above. The encoder 4 obtains signals through pulses, calculates, and gives the stepping motor 10 positioning and correction, providing better reliability and faster adjustment speed through electronic control.

[0030] The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application should be covered within the protection scope of the present application.

Claims

1. A motor positioning device for locating the starting position of a stepper motor, wherein the stepper motor is used to drive a carrier turntable to rotate, characterized in that: The motor positioning device comprises: a positioning plate driven by the stepping motor and rotating synchronously with the carrying turntable; an interruption sensing unit, disposed on one side of the positioning plate and cooperating with the positioning plate to perform light interruption sensing; and An encoder is arranged below the positioning plate. The encoder is electrically connected to the stepping motor and can control the rotation of the stepping motor.

2. The motor positioning device according to claim 1, wherein: A plurality of through slots are arranged at intervals around the positioning plate, and the blocking sensing unit cooperates with the through slots of the positioning plate to perform light blocking sensing.

3. The motor positioning device according to claim 2, wherein: The blocking type sensing unit includes a transmitter and a receiver respectively arranged above and below the positioning plate.

4. The motor positioning device according to claim 2, wherein: The carrying turntable has a plurality of receiving grooves spaced apart on the periphery thereof, and the number of the through grooves of the positioning plate is the same as the number of the receiving grooves of the carrying turntable.

5. The motor positioning device according to claim 2, wherein: The carrying turntable has a plurality of receiving grooves spaced apart on the periphery thereof, and the number of the through grooves of the positioning plate is a multiple of the number of the receiving grooves of the carrying turntable.

6. The motor positioning device according to claim 1, wherein: The invention also comprises an alarm unit electrically connected to the blocking sensing unit, for receiving the signal of the blocking sensing unit and issuing an alarm notification.

7. The motor positioning device according to claim 6, wherein: The alarm notification is an alarm tone or an alarm signal.

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