CN218298456U - Universal mechanism suitable for automatically testing no-load rotating speed and steering of motor - Google Patents

Abstract

The utility model provides a universal mechanism suitable for automatic test motor no-load rotation turns to relates to the accredited testing organization technical field that motor no-load rotation turned to. The method comprises the following steps: the device comprises a test board for placing a tested motor, a coded disc which is in a suspension state during testing and assembled with the tested motor and rotates synchronously with a shaft, and a pneumatic finger for assisting the coded disc to be assembled with the tested motor, wherein a magnetic sensing main body for sensing the test is installed at one end of the coded disc, a connecting column for connecting with the tested motor is arranged at the other end of the coded disc, the coded disc is embedded in a bracket, a sensor is fixedly installed above the bracket, the pneumatic finger is arranged on a support and connected with a gas supply device, and the sliding table moves up and down linearly relative to the test board. The anti-flying design is added through the coded disc structure, and the limit of a pneumatic finger is combined, so that the test safety is improved; through the arrangement of the pneumatic finger and the sliding structure and the connection with the controller, the coded disc is taken and placed without manual operation, and automatic testing is realized.

Description

Universal mechanism suitable for automatically testing no-load rotating speed and steering of motor

Technical Field

The utility model relates to a accredited testing organization technical field that motor no-load rotational speed turned to, in particular to universal mechanism suitable for automatic test motor no-load rotational speed turns to.

Background

The no-load test refers to a test that the motor operates as a no-load motor and no effective mechanical power is output from the shaft end of the motor.

The no-load rotating speed of the motor is tested in a rotating direction mode, and testing equipment is different due to different types of the motors. Some products such as brushless motors and servo motors are provided with FG output, and can directly test rotating speed and steering information; the other part of products such as a stepping motor and a brushed direct current motor need to be tested in a mode of encoder connecting shaft test, light induction test or velometer code disc test, the encoder connecting shaft test is equivalent to loading, the test is inaccurate, and the method is not suitable for testing high-speed products; the light induction test needs to stick reflective paper, so the operation is inconvenient; the code wheel of the speedometer needs to be manually taken and placed in the test, the operation is inconvenient, and the code wheel of the high-speed motor is dangerous due to the possibility of code wheel flying out in the test.

At present, no very good general testing mechanism for the no-load rotating speed steering of the motor exists in the industry, and the main reasons are as follows: 1. the compatibility is poor, and the testing method is various due to different types of motors; 2. testing is unsafe, especially for high speed products; 3. the automation degree is low, and the operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model provides a universal mechanism suitable for automatic test motor no-load rotational speed turns to overcomes the defect that above-mentioned prior art exists.

The specific technical scheme is that the universal mechanism suitable for automatically testing the no-load rotating speed and the rotating direction of the motor comprises: a testboard for laying the motor under test, during the test be in the suspension state and with the motor under test equipment together and carry out axle synchronous rotation's code wheel, and supplementary the code wheel with the pneumatic finger that the motor under test carried out the equipment, the magnetic induction main part that is used for the response test is being installed to code wheel one end, the other end be equipped with be used for with the spliced pole that the motor under test is connected, the embedded bracket of arranging in of code wheel, bracket top fixed mounting is being regarded as a hall a board and hall two boards of sensor, hall a board with hall two boards access controller, bracket fixed mounting is on the slip table, pneumatic finger is arranged in on the support and is connected with air feeder, pneumatic finger is close to the magnetic induction main part, support fixed mounting is on the slip table, the slip table carries out linear motion from top to bottom for the testboard.

Preferably, an alignment clamping position and an alignment guide are arranged on the outer side of the coded disc close to the connecting column.

Preferably, the inner side of the code wheel is provided with an anti-flying clamp position and a guide clamp position close to the magnetic induction main body.

Preferably, the free end of the connecting column is provided with a rubber sleeve which protrudes out of the connecting column.

Preferably, the sliding table is mounted on a sliding rail through a sliding block, the sliding block is slidably mounted with the sliding rail, and the sliding table is fixedly mounted with the linear driving device.

The test process is roughly as follows: in an initial state, the tested motor is placed on a test bench, and the coded disc and the tested motor are in a coaxial accurate state through automatic alignment of the bracket; the pneumatic finger is firstly moved and popped up in an action state, about 0.1s, the sliding table approaches to the test bench, the connecting column can touch the output shaft of the tested motor, the code disc is gradually combined with the pneumatic finger under the guiding action of the pneumatic finger, the pneumatic finger and the code disc stop after being inserted to the bottom, the code disc and the output shaft of the tested motor are assembled, and the pneumatic finger pops up after the assembly is completed; in a suspension test state, the pneumatic finger is separated from the coded disc, the distance between the pneumatic finger and the coded disc is not more than the height of the coded disc so as to play a role in preventing flying, a gap is formed between the coded disc and the bracket, and the coded disc is in a suspension state so as to achieve the effect of manual placement; and (3) judging a test result: the detected motor is electrified, the steering is judged successively through signals of the first Hall plate and the second Hall plate, and the rotating speed is judged through pulse signals of the first Hall plate or the second Hall plate; the sliding table deviates from the test board, and the coded disc is pulled away through the bracket to complete the whole test.

Due to the adoption of the technical scheme, compared with the prior art, the utility model discloses improve tachymeter code wheel accredited testing organization, adopted hall to detect and combine code wheel structure and the automatic design of mechanism, realized the unloaded non-contact zero load of motor and automated test, hall detects and photoinduction and detects the same accuracy, is applicable to all kinds of motors, and the compatibility is high; the anti-flying design is added through the coded disc structure, and the limit of a pneumatic finger is combined, so that the test safety is improved; through the arrangement of the pneumatic finger and the sliding structure and the connection with the controller, the coded disc is taken and placed without manual operation, and automatic testing is realized.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

FIG. 1 is a schematic structural view of the present invention,

figure 2 is a front view of the utility model,

figure 3 isbase:Sub>A cross-sectional viewbase:Sub>A-base:Sub>A of figure 2,

FIG. 4 is a schematic view of the operation state in embodiment 1,

FIG. 5 is a schematic view showing a suspension test state in example 1,

FIG. 6 is a structural diagram of a code wheel in embodiment 2,

FIG. 7 is a front view of a code wheel in embodiment 2,

figure 8 is a cross-sectional view taken at B-B of figure 7,

wherein:

1. a code disc, 2, a bracket, 3, a pneumatic finger, 4, a support, 5, a sliding table, 6, a sliding block, 7, a sliding rail, 8, a rubber sleeve, 9, a Hall first plate, 10, a Hall second plate, 11 and a tested motor,

101. the magnetic induction device comprises a magnetic induction main body, 102, an anti-flying clamp position, 103, a guide clamp position, 104, an alignment clamp position, 105, an alignment guide, 106 and a connecting column.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.

In the description of the present invention, it should be noted that the terms "inner", "outer", "left" and "right" indicate the position or positional relationship shown on the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

The following description of the invention is made in conjunction with the accompanying drawings:

example 1: as can be appreciated with reference to fig. 1, a universal mechanism suitable for automated testing of motor no-load speed steering comprises: a pneumatic finger 3 is being arranged in on support 4 and is connected with air feeder, pneumatic finger 3 is close to magnetic induction main part 101, support 4 fixed mounting is on slip table 5, slip table 5 carries out linear motion from top to bottom for the testboard 5. When the Hall first plate 9 and the Hall second plate 10 detect that the coded disc 1 rotates, the change of the magnetic poles is converted into an electric signal; the inside corresponding automated inspection procedure that sets up of controller can control the up-and-down motion of slip table 5 can receive the signal of hall a 9 with the transmission of hall two boards 10 is handled, can control air feeder to pneumatic finger 3 aerifys or loses heart, can control whether to by the power supply of survey motor 11. The main improvement point in the present application is that the coded disc structure of the detection mechanism and the pick-and-place mechanism thereof are not described much for the controller and the related programs thereof.

During testing, in a first step, in an initial state, as shown in fig. 3, the tested motor 11 is placed on a test bench, and the code wheel 1 and the tested motor 11 are in a coaxial accurate state through automatic alignment of the bracket 2; step two, in an action state, as shown in fig. 4, the pneumatic finger 3 acts and pops up firstly, about 0.1s, the sliding table 5 approaches to the test table, the connecting column 106 can touch the output shaft of the tested motor 11, the code disc 1 is gradually matched with the pneumatic finger 3 under the guiding action of the pneumatic finger 3, the pneumatic finger 3 and the code disc 1 stop after being inserted to the bottom, the code disc 1 is assembled with the output shaft of the tested motor 11, and after the assembly is completed, the pneumatic finger 3 pops up; step three, in a suspension test state, as shown in fig. 5, the pneumatic finger 3 is separated from the code wheel 1, the distance between the pneumatic finger 3 and the code wheel 1 is not greater than the height of the code wheel 1, so as to play a role in preventing flying, a gap is formed between the code wheel 1 and the bracket 2, and the code wheel 1 is in a suspension state, so as to achieve an effect of manual placement; step four, judging the test result: the tested motor 11 is electrified, the steering is judged successively through signals of the Hall plate I9 and the Hall plate II 10, and the rotating speed is judged through a pulse signal of the Hall plate I9 or the Hall plate II 10; and step five, the sliding table 5 deviates from the test bench, and the coded disc 1 is pulled away through the bracket 2 to complete the whole test.

The code disc testing mechanism of the velocimeter is improved, hall detection is adopted, and the design of code disc structure and mechanism automation is combined, so that the non-contact zero-load and automatic testing of the motor in no load is realized, the Hall detection and the photoinduction detection are accurate, the velocimeter is suitable for various motors, and the compatibility is high; the anti-flying design is added through the coded disc structure, and the limit of a pneumatic finger is combined, so that the test safety is improved; through the arrangement of the pneumatic finger and the sliding structure and the connection with the controller, the coded disc is taken and placed without manual operation, and automatic testing is realized.

Example 2: as will be understood from fig. 6 to 8, based on the structure of embodiment 1, the magnetic induction body 101 is formed by attaching a circular magnetic pole above the code wheel 1. An alignment clamping position 104 and an alignment guide 105 are arranged on the outer side of the code wheel 1 close to the connecting column 106. Alignment screens 104 with the design of alignment direction 105 is convenient for quick alignment, can accomplish to get fast and put, alignment direction 105 can alleviate the weight of code wheel 1 realizes the lightweight.

An anti-flying position limit 102 and a guide position limit 103 are arranged on the inner side of the coded disc 1 close to the magnetic induction main body 101. The anti-flying position clamping part 102 is matched with the pneumatic finger 3 to act, under a suspension test state, the pneumatic finger 3 is separated from the coded disc 1, the distance between the pneumatic finger 3 and the coded disc 1 is about one third of the height of the coded disc 1 generally, and the anti-flying position clamping part plays a role in preventing flying and is convenient for detecting the front and back plugging and aligning actions; the guide position 103 guides the pneumatic finger 3, and reduces the weight of the code wheel 1 to achieve light weight.

The sliding table 5 is installed on a sliding rail 7 through a sliding block 6, the sliding block 6 and the sliding rail 7 are installed in a sliding mode, and the sliding table 5 and the linear driving device are fixedly installed. The linear driving device can be an air cylinder and drives the sliding table 5 to be close to or far away from the test table, and the coded disc 1 and the sliding table 5 move synchronously.

Example 3: on the basis of the structure of the embodiment 1, the rubber sleeve 8 is mounted on the free end of the connecting column 106, and the rubber sleeve 8 protrudes out of the connecting column 106. The design is suitable for testing various motor products with outer shafts or inner concave shafts, and the connecting column 106 can be protected by the rubber sleeve 8.

The foregoing is only a preferred embodiment of the present invention and is not intended to limit the present invention in any way, and those skilled in the art may make modifications and changes to the equivalent embodiments using the teachings of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims (5)

1. A universal mechanism suitable for automatically testing the no-load rotating speed and the rotating direction of a motor, which is characterized in that,

the method comprises the following steps: a test bench for placing a tested motor (11), a coded disc (1) which is in a suspension state during testing and assembled with the tested motor (11) and rotates synchronously with a shaft, and a pneumatic finger (3) for assisting the coded disc (1) and the tested motor (11) to assemble,

the magnetic induction main body (101) used for induction testing is installed at one end of the coded disc (1), the connecting column (106) used for being connected with the tested motor (11) is arranged at the other end of the coded disc (1), the coded disc (1) is embedded in the bracket (2), a first Hall plate (9) and a second Hall plate (10) which are used as sensors are fixedly installed above the bracket (2), the first Hall plate (9) and the second Hall plate (10) are connected with the controller, the bracket (2) is fixedly installed on the sliding table (5),

the pneumatic finger (3) is arranged on the support (4) and connected with the air supply device, the pneumatic finger (3) is close to the magnetic induction main body (101), the support (4) is fixedly arranged on the sliding table (5),

the sliding table (5) moves up and down linearly relative to the test table.

2. The universal mechanism suitable for automatically testing the no-load rotation speed and the rotation direction of the motor as claimed in claim 1 is characterized in that an alignment clamping position (104) and an alignment guide (105) are arranged on the outer side of the code wheel (1) close to the connecting column (106).

3. The universal mechanism suitable for automatically testing the no-load rotation speed and the rotation direction of the motor as claimed in claim 1 is characterized in that an anti-flying position clip (102) and a guide position clip (103) are arranged on the inner side of the code wheel (1) close to the magnetic induction main body (101).

4. The universal mechanism suitable for automatically testing the no-load rotation speed steering of the motor as claimed in claim 1, wherein a rubber sleeve (8) is mounted on the free end of the connecting column (106) and the rubber sleeve (8) protrudes from the connecting column (106).

5. The universal mechanism suitable for automatically testing the no-load rotation speed and the rotation direction of the motor as claimed in claim 1, wherein the sliding table (5) is mounted on a sliding rail (7) through a sliding block (6), the sliding block (6) is slidably mounted with the sliding rail (7), and the sliding table (5) is fixedly mounted with the linear driving device.

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