CN213632483U - Motor torque testing device - Google Patents

Abstract

The present disclosure provides a motor torque testing device, including: the testing plane is provided with a through hole for the motor to be tested to pass through; the clamping assembly is arranged around the through hole in a surrounding manner, is positioned above the test plane and is used for fixing the motor to be tested; the torque tester is arranged below the test plane in a lifting manner, at least partially overlaps the through hole in the vertical projection of the test plane, and is used for testing the torque of the motor to be tested; and the lifting assembly is arranged below the test plane and used for driving the torque tester to lift. According to the embodiment of the invention, the connection test precision of the torque tester and the motor to be tested is improved by accurately positioning the torque tester and the motor to be tested, and the motor torque is automatically tested by controlling the torque tester to be driven oppositely relative to the motor to be tested, so that the detection efficiency of the motor torque is improved.

Description

Motor torque testing device

Technical Field

The utility model relates to a domestic appliance's manufacturing field especially relates to a motor torque testing arrangement.

Background

In the field of manufacturing and processing of household appliances, along with the continuous improvement of intellectualization and automation degree, the application of the motor is more and more extensive, for example, the actions of driving various swinging parts, controlling the opening and closing of various doors, controlling the lifting and descending of various trays and the like in the household appliances can be completed by the motor. In each test of the motor, the torque is related to the rotating speed and the power of the motor and is also an important parameter in the efficiency evaluation of the motor, so that the accuracy of the torque test is not only related to the normal use of the motor, but also directly related to the accuracy of the efficiency evaluation of the motor.

However, the related motor torque tester has a single function and low precision, and is difficult to match with the motor to be tested, so that the test requirement of the motor to be tested cannot be met. In addition, the related motor torque tester relies on manual positioning, clamping and testing operations of detection personnel, so that the detection efficiency is low, the operator is easy to fatigue, the motor is easy to damage due to overlarge clamping force, or the motor to be tested and the testing instrument are not accurately positioned due to insufficient clamping force, and then the testing result is influenced.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the present disclosure provides a motor torque testing apparatus, which improves precision of connection testing between a torque tester and a motor to be tested by accurately positioning the torque tester and the motor to be tested, and realizes automatic testing of motor torque by controlling the torque tester to drive in opposite directions relative to the motor to be tested, thereby improving detection efficiency of motor torque.

In one aspect of the present disclosure, there is provided a motor torque testing apparatus including:

the testing plane is provided with a through hole for the motor to be tested to pass through;

the clamping assembly is arranged around the through hole in a surrounding manner, is positioned above the test plane and is used for fixing the motor to be tested;

the torque tester is arranged below the test plane in a lifting manner, and the vertical projection of the measuring head on the test plane is positioned in the through hole and used for testing the torque of the motor to be tested; and

and the lifting assembly is arranged below the test plane and used for driving the torque tester to lift.

In some embodiments, the test plane is disposed along a horizontal direction, the clamping assembly is configured to enable the rotating shaft of the motor to be tested to be disposed along a vertical direction, and the lifting direction of the lifting assembly is disposed along the vertical direction.

In some embodiments, the clamping assembly comprises:

the positioning blocks are uniformly distributed on the periphery of the through hole, and the distance between at least one of the positioning blocks and the center of the through hole is adjustable.

In some embodiments, the through hole is circular, and the plurality of positioning blocks includes two positioning blocks, which are symmetrically arranged at two ends of the through hole and both of which are adjustable in distance relative to the center of the through hole;

the shell of the motor to be tested is of a cylindrical structure, and one side, close to the center of the through hole, of each positioning block is provided with an inwards concave arc-shaped molded surface so as to embed the shell of the motor to be tested.

In some embodiments, the clamping assembly further comprises:

the lower pressure head is arranged above the test plane in a lifting manner, the distance between the highest point and the test plane is not less than the height of the motor to be tested exposed out of the test plane when the motor to be tested is arranged in the through hole, and the distance between the lowest point and the test plane is not more than the height of the motor to be tested exposed out of the test plane when the motor to be tested is arranged in the through hole, so that the motor to be tested is pressed towards the test plane; and

and the pressing cylinder is used for driving the lower pressing head to move up and down and enabling the lifting direction of the lower pressing head to be parallel to the lifting direction of the torque tester.

In some embodiments, the lift assembly comprises:

the bottom plate is arranged below the test plane in parallel;

the guide rod is fixedly connected between the bottom plate and the test plane;

the middle plate is arranged between the bottom plate and the testing plane along the guide rod in a sliding manner, and the torque tester is arranged on the upper surface of the middle plate;

the linear bearing is arranged between the guide rod and the middle plate; and

and one end of the lifting cylinder is fixedly arranged on the lower side of the test plane, and the other end of the lifting cylinder is telescopically arranged on the intermediate plate and is used for driving the intermediate plate to slide along the guide rod.

In some embodiments, the middle plate is a rectangular plate structure, the guide rods include four guide rods, the four guide rods are distributed in four corner regions of the middle plate, and the torque tester is located between the four guide rods and in a central region within the four corner regions of the middle plate.

In some embodiments, the lifting cylinder includes two lifting cylinders, the two lifting cylinders are symmetrically arranged on two sides of the torque tester, and a central axis of symmetry is perpendicular to the test plane and passes through a measuring head of the torque tester;

the lift cylinder is further configured to: and in a contraction state, a measuring head of the torque tester is positioned at a test position of the rotating shaft of the motor to be tested.

In some embodiments, the motor torque testing apparatus further comprises:

and the electric control assembly is in communication connection with the torque tester, the compaction air cylinder and the lifting air cylinder, is configured to respond to a starting command, firstly controls the compaction air cylinder to drive the lower pressure head to compact the motor to be tested, then controls the lifting air cylinder to drive a measuring head of the torque tester to be in a testing position, and finally starts the torque tester to perform torque testing on the motor to be tested.

In some embodiments, the electronic control assembly comprises:

the electrical control box comprises an operation table top and a display table top, wherein the operation table top is used for arranging the test plane, and the display table top is used for arranging a human-computer interface;

the plurality of foot pads are arranged at the bottom of the electric control box in a height-adjustable manner and used for adjusting the electric control box to enable the operation table top to be parallel to the horizontal direction;

the two starting buttons are respectively arranged on two sides of the width direction of the electric control box, are in communication connection with the electric control assembly, and are configured to send starting commands to the electric control assembly when being pressed simultaneously;

the power switch is arranged on the operation table board and used for controlling the opening or closing of power supply lines to the torque tester, the pressing cylinder, the lifting cylinder and the electric control assembly; and

and the indicating lamp is arranged on the operating table top and used for displaying the opening or closing state of the power switch.

Therefore, according to the embodiment of the disclosure, the test plane is used as a uniform positioning reference, the accurate positioning of the motor to be tested through the clamping assembly improves the connection precision between the torque tester and the motor to be tested, so that the accuracy of the motor torque test is improved, the torque tester is controlled to be driven oppositely relative to the motor to be tested through the driving of the lifting assembly on the basis of the test plane, the automatic test of the motor torque is realized, and the detection efficiency of the motor torque is improved.

Drawings

The accompanying drawings are included to provide a further understanding of the claimed subject matter and are incorporated in and constitute a part of this specification, illustrate embodiments of the subject matter and together with the description serve to explain the principles of the subject matter and not to limit the subject matter.

FIG. 1 is a schematic structural diagram of a motor torque testing apparatus according to some embodiments of the present disclosure;

fig. 2 is a schematic structural diagram of a clamping assembly and a lifting assembly in a motor torque testing apparatus according to some embodiments of the present disclosure.

Description of reference numerals:

1-test plane 11-through hole 21-positioning block

22-lower pressure head 23-pressing cylinder 3-torque tester

41-bottom plate 42-guide rod 43-intermediate plate

44-linear bearing 45-lifting cylinder 51-electric control box

52-foot pad 53-start button 54-power switch

55-indicator 56-man-machine interface 61-handle

62-power line interface 63-air pipe interface 64-external interface

7-electric machine to be tested

Detailed Description

Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the disclosure, its application, or uses. The present disclosure may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments are to be construed as merely illustrative, and not as limitative, unless specifically stated otherwise.

The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element preceding the word covers the element listed after the word, and does not exclude the possibility that other elements are also covered. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

In the present disclosure, when a specific device is described as being located between a first device and a second device, there may or may not be intervening devices between the specific device and the first device or the second device. When a particular device is described as being coupled to other devices, that particular device may be directly coupled to the other devices without intervening devices or may be directly coupled to the other devices with intervening devices.

All terms (including technical or scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

As shown in FIGS. 1-2:

in one aspect of the present disclosure, a motor torque testing device is provided, which includes a testing plane 1, a clamping assembly, a torque tester 3, and a lifting assembly. The testing plane 1 is provided with a through hole 11 through which the motor 7 to be tested can pass; the clamping assembly is arranged around the through hole 11 in an enclosing manner, is positioned above the test plane 1 and is used for fixing the motor 7 to be tested; the torque tester 3 is arranged below the test plane 1 in a liftable manner, and the vertical projection of the measuring head on the test plane 1 is positioned in the through hole 11 and used for testing the torque of the motor 7 to be tested; and the lifting component is arranged below the test plane 1 and used for driving the torque tester 3 to lift.

In the embodiment of the disclosure, the test plane 1 is used as a boundary, the motor 7 to be tested and the torque tester 3 are respectively arranged at the upper side and the lower side of the test plane 1, and in the test process, the motor 7 to be tested is placed at a formulated position only by operating a clamping assembly positioned above the test plane 1, so that all test preparation work is completed. Under the condition that the motor 7 to be tested is in place, the torque tester 3 positioned below the testing plane 1 moves upwards under the driving of the lifting assembly and is connected with the motor 7 to be tested to perform torque testing.

Therefore, in the whole testing process, an operator can ensure the matching between the motor 7 to be tested and the torque tester 3 only by ensuring that the motor 7 to be tested is in place, the torque tester 3 does not need to be repositioned and installed, the operation difficulty is greatly simplified, and the testing precision is improved. And only operate above the test plane 1, not only accord with operating personnel's operation habit, still avoided touching the mistake of torque tester 3 and upgrading subassembly below the test platform, guarantee the operation safety.

In addition, the lifting drive of the lifting component to the torque tester 3 can enable the torque tester 3 to be in a testing position only when the torque tester 3 needs to be tested, and the lifting drive is located below the testing position under other conditions, so that not only is a space perpendicular to the testing plane 1 reserved for the installation of the motor 7 to be tested in the through hole 11, but also the motor installation position can be avoided by enabling the torque tester 3 to avoid, and the motor 7 to be tested is prevented from being installed in place and damaging the torque tester 3.

Further, in some embodiments, the test plane 1 is disposed in a horizontal direction in order to improve positioning accuracy. In order to prevent the motor torque testing process from being influenced by the rotating shaft of the motor 7 to be tested or the orientation of the measuring head of the torque tester 3, the clamping assembly is constructed to enable the rotating shaft of the motor 7 to be tested to be arranged along the vertical direction, and the lifting direction of the lifting assembly is arranged along the vertical direction.

At this time, the test plane 1 in the horizontal direction is used as a positioning reference, the motor 7 to be tested and the torque tester 3 which are positioned at the upper side and the lower side of the test plane 1 can be conveniently and accurately positioned and installed, and the opposite movement directions of the rotating shaft and the measuring head are respectively vertical.

In order to position and clamp the motor 7 to be tested, in some embodiments, the clamping assembly includes a plurality of positioning blocks 21, and the positioning blocks 21 are uniformly distributed on the periphery of the through hole 11. In order to facilitate the installation of the motor 7 to be measured in the positioning area surrounded by the positioning blocks 21, the distance of at least one positioning block 21 of the positioning blocks 21 relative to the center of the through hole 11 is adjustable, so that a larger position can be reserved for the motor 7 to be measured by adjusting the adjustable at least one positioning block 21 to a position far away from the center of the positioning area, the motor to be measured can be installed in the positioning area more easily, and the scratch and damage to the motor can be avoided.

Further, for the to-be-tested motor 7 with the cylindrical shell, in some embodiments, the through hole 11 is circular to embed the to-be-tested motor 7. The positioning blocks 21 comprise two positioning blocks 21, the two positioning blocks 21 are symmetrically arranged at two ends of the through hole 11, the distance between the two positioning blocks 21 and the center of the through hole 11 is adjustable, and one side of each positioning block 21, which is close to the center of the through hole 11, is provided with an inwards concave arc-shaped molded surface so as to embed a shell of the motor 7 to be tested.

On the basis that the positioning blocks 21 are used for positioning the motor 7 to be tested along the test plane 1, in order to provide positioning perpendicular to the direction of the test plane 1 for the motor 7 to be tested, in some embodiments, the clamping assembly further comprises a lower pressing head 22 and a pressing cylinder 23. The lower pressing head 22 is arranged above the testing plane 1 in a liftable manner, and the pressing cylinder 23 is used for driving the lower pressing head 22 to move up and down, so that the lifting direction of the lower pressing head 22 is parallel to the lifting direction of the torque tester 3.

The distance between the highest point of the lower pressure head 22 and the test plane 1 is not less than the height of the motor 7 to be tested exposed out of the test plane 1 when the motor 7 to be tested is arranged in the through hole 11, so that the motor 7 to be tested can be installed into the through hole 11 of the test plane 1 from the lower part of the lower pressure head 22; the distance between the lowest point of the lower pressure head 22 and the test plane 1 is not more than the height of the motor 7 to be tested exposed out of the test plane 1 when the motor 7 to be tested is arranged in the through hole 11, and the lower pressure head is used for pressing the motor 7 to be tested to the test plane 1.

To enable the elevation drive of the torque tester 3 relative to the test plane 1, in some embodiments, the elevation assembly includes a base plate 41, a guide rod 42, an intermediate plate 43, a linear bearing 44, and an elevation cylinder 45. Wherein the bottom plate 41 is arranged in parallel below the test plane 1; the guide rod 42 is fixedly connected between the bottom plate 41 and the test plane 1; the middle plate 43 is slidably arranged between the bottom plate 41 and the testing plane 1 along the guide rod 42, and the torque tester 3 is arranged on the upper surface; the linear bearing 44 is disposed between the guide rod 42 and the intermediate plate 43; and one end of the lifting cylinder 45 is fixedly arranged at the lower side of the test plane 1, and the other end is telescopically arranged on the intermediate plate 43 and is used for driving the intermediate plate 43 to slide along the guide rod 42.

The lifting assembly is composed of a testing plane 1 positioned above, a bottom plate 41 positioned below and a guide rod 42 connected between the testing plane 1 and the bottom plate 41, so that a stable track for lifting the torque tester 3 is formed, the bottom plate 41 can limit the downward movement position of the torque tester 3 on one hand, the guide rod 42 can be provided with a mounting position of a second point on the other hand, the relative distance between guide rails is controlled, and the structural integrity of the lifting assembly is ensured. On this basis, the intermediate plate 43 is slidably disposed on the guide rod 42 via the linear bearing 44, thereby forming a carrier for the elevating movement of the torque tester 3. At this time, as long as the installation direction of the guide rod 42 is perpendicular to the test plane 1, it can be ensured that the moving direction of the torque tester 3 is also perpendicular to the test plane 1.

Further, in order to form a balanced limit for the middle plate 43 and the torque tester 3 disposed thereon, in some embodiments, the middle plate 43 is a rectangular plate structure, the guide rods 42 include four guide rods 42, and the four guide rods 42 are distributed in four corner regions of the middle plate 43, so that the possibility of the middle plate 43 tilting is reduced by common limit of the four guide rods 42, and the torque tester 3 is located in the middle of the four guide rods 42 and in a central region within the four corner regions of the middle plate 43, so that the limit of the four corner guide posts received by the torque tester 3 is balanced, and the lifting direction of the torque tester is ensured.

In some embodiments, to form a balanced drive for the middle plate 43 and the torque tester 3 disposed thereon, the lifting cylinder 45 includes two lifting cylinders 45, the two lifting cylinders 45 are symmetrically disposed on both sides of the torque tester 3, and the central axis of symmetry is perpendicular to the test plane 1 and passes through the probe head of the torque tester 3.

The lift cylinder 45 is further configured to: in the contracted state, the measuring head of the torque tester 3 is positioned at the test position of the rotating shaft of the motor 7 to be tested, so that the torque tester 3 is positioned in place.

In some embodiments, in order to control the sequence of actions of the torque tester 3, the pressing cylinder 23, and the lifting cylinder 45, and improve the automation degree of the torque tester provided in the embodiments of the present disclosure, the tester further includes an electronic control component, the electronic control component is communicatively connected to the torque tester 3, the pressing cylinder 23, and the lifting cylinder 45, and is configured to respond to a start command, first control the pressing cylinder 23 to drive the lower pressing head 22 to press the motor 7 to be tested, then control the lifting cylinder 45 to drive the probe of the torque tester 3 to be in a testing position, and finally start the torque tester 3 to perform a torque test on the motor 7 to be tested.

In some embodiments, to facilitate operator control of the torque testing apparatus provided by embodiments of the present disclosure through an electronic control assembly, the electronic control assembly includes an electrical control box 51, a plurality of foot pads 52, two start buttons 53, a power switch 54, and an indicator light 55.

The electrical control box 51 comprises an operation table top and a display table top, wherein the operation table top is used for arranging the test plane 1, and the display table top is used for arranging the human-computer interface 56; the plurality of foot pads 52 are arranged at the bottom of the electric control box 51 in a height-adjustable manner and used for adjusting the electric control box 51 to enable the operation table surface to be parallel to the horizontal direction; the two starting buttons 53 are respectively arranged at two sides of the electrical control box 51 in the width direction, are in communication connection with the electrical control assembly, and are configured to send starting commands to the electrical control assembly when being pressed simultaneously; the power switch 54 is arranged on the operation table top and used for controlling the opening or closing of the energizing circuits of the torque tester 3, the pressing cylinder 23, the lifting cylinder 45 and the electric control component; and the indicator light 55 is disposed on the operation table for displaying the on or off state of the power switch 54.

Therefore, an operator puts the motor 7 to be tested into the clamping assembly, presses the start button, the pressing cylinder 23 drives the lower pressing head 22 to press the motor 7 to be tested, the torque tester 3 starts to detect the torque of the motor 7 to be tested, detected values are transmitted to the human-computer interface 56 through signals to visually display the values and automatically judge whether the torque of the motor 7 to be tested is normal or not, the user visually judges the values, the pressing cylinder 23 automatically releases after the detection is finished, and the operator can take out the motor 7 to be tested.

Based on the box structure provided by the electric control box 51, the handles 61 are provided on the left and right sides thereof, so that the electric control box 51 can be conveniently carried and adjusted in position. In order to improve the integration degree of the torque testing device provided in the embodiment of the present disclosure, the electrical control box 51 is further provided with a power line interface 62, an air pipe interface 63, and an external interface 64. The power line interface 62 is used for externally connecting a power line to supply power to electric equipment inside the electric control box 51; the air pipe interface 63 is used for being externally connected with an air source and supplying air to the pressing air cylinder 23 and the lifting air cylinder 45 in the electric control box 51; the external interface 64 can be connected with a data line externally, and can input or export data, so that the test data can be conveniently stored by an operator.

Therefore, according to the embodiment of the present disclosure, the test plane 1 is used as a uniform positioning reference, and the accurate positioning of the motor 7 to be tested by the clamping assembly improves the connection accuracy between the torque tester 3 and the motor 7 to be tested, so as to improve the accuracy of the motor torque test, and the torque tester 3 is controlled to drive the motor 7 to be tested in opposite directions based on the driving of the test plane 1 by the lifting assembly, so that the automatic test of the motor torque is realized, and the detection efficiency of the motor torque is improved.

Thus, various embodiments of the present disclosure have been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.

Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the present disclosure. It will be understood by those skilled in the art that various changes may be made in the above embodiments or equivalents may be substituted for elements thereof without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims (10)

1. A motor torque testing device, comprising:

the testing plane (1) is provided with a through hole (11) through which the motor (7) to be tested can pass;

the clamping assembly is arranged around the through hole (11) in a surrounding manner, is positioned above the test plane (1) and is used for fixing the motor (7) to be tested;

the torque tester (3) is arranged below the test plane (1) in a lifting manner, and the vertical projection of the measuring head on the test plane (1) is positioned in the through hole (11) and is used for testing the torque of the motor (7) to be tested; and

and the lifting assembly is arranged below the test plane (1) and used for driving the torque tester (3) to lift.

2. The motor torque testing device according to claim 1, wherein the testing plane (1) is arranged along a horizontal direction, the clamping assembly is configured such that the rotating shaft of the motor (7) to be tested is arranged along a vertical direction, and the lifting direction of the lifting assembly is arranged along the vertical direction.

3. The motor torque testing device of claim 2, wherein the clamping assembly comprises:

the positioning blocks (21) are uniformly distributed on the periphery of the through hole (11), and the distance between at least one positioning block (21) in the positioning blocks (21) and the center of the through hole (11) is adjustable.

4. The motor torque testing device according to claim 3, wherein the through hole (11) is circular, the plurality of positioning blocks (21) comprises two positioning blocks (21), the two positioning blocks (21) are symmetrically arranged at two ends of the through hole (11), and the distance between the two positioning blocks (21) and the center of the through hole (11) is adjustable;

the shell of the motor (7) to be tested is of a cylindrical structure, and one side, close to the circle center of the through hole (11), of the positioning block (21) is provided with an inwards concave arc-shaped molded surface so as to embed the shell of the motor (7) to be tested.

5. The motor torque testing device of claim 3, wherein the clamping assembly further comprises:

the lower pressure head (22) is arranged above the test plane (1) in a liftable manner, the distance between the highest point and the test plane (1) is not less than the height of the motor (7) to be tested exposed out of the test plane (1) when the motor (7) to be tested is arranged in the through hole (11), and the distance between the lowest point and the test plane (1) is not more than the height of the motor (7) to be tested exposed out of the test plane (1) when the motor (7) to be tested is arranged in the through hole (11), so that the motor (7) to be tested is pressed towards the test plane (1); and

and the pressing air cylinder (23) is used for driving the lower pressing head (22) to move up and down, and the lifting direction of the lower pressing head (22) is parallel to the lifting direction of the torque tester (3).

6. The motor torque testing arrangement of claim 5, wherein the lift assembly comprises:

a base plate (41) arranged in parallel below the test plane (1);

the guide rod (42) is fixedly connected between the bottom plate (41) and the testing plane (1);

the middle plate (43) is slidably arranged between the bottom plate (41) and the testing plane (1) along the guide rod (42), and the upper surface of the middle plate is used for arranging the torque tester (3);

a linear bearing (44) disposed between the guide bar (42) and the intermediate plate (43); and

and one end of the lifting cylinder (45) is fixedly arranged on the lower side of the test plane (1), and the other end of the lifting cylinder is telescopically arranged on the middle plate (43) and is used for driving the middle plate (43) to slide along the guide rod (42).

7. The motor torque testing device according to claim 6, wherein the middle plate (43) is a rectangular plate structure, the guide rods (42) comprise four guide rods (42), the four guide rods (42) are distributed in four corner regions of the middle plate (43), and the torque tester (3) is located in the middle of the four guide rods (42) and in a central region within the four corner regions of the middle plate (43).

8. The motor torque testing device according to claim 6, characterized in that the lifting cylinder (45) comprises two lifting cylinders (45), the two lifting cylinders (45) are symmetrically arranged at two sides of the torque tester (3), and a central symmetry axis is perpendicular to the testing plane (1) and passes through a measuring head of the torque tester (3);

the lift cylinder (45) is further configured to: and in a contraction state, a measuring head of the torque tester (3) is positioned at a test position of the rotating shaft of the motor (7) to be tested.

9. The motor torque testing arrangement of claim 6, further comprising:

the electric control assembly is in communication connection with the torque tester (3), the pressing cylinder (23) and the lifting cylinder (45) and is configured to respond to a starting command, the pressing cylinder (23) is controlled to drive the lower pressing head (22) to press the motor (7) to be tested, then the lifting cylinder (45) is controlled to drive a measuring head of the torque tester (3) to be in a testing position, and finally the torque tester (3) is started to perform torque testing on the motor (7) to be tested.

10. The motor torque testing arrangement of claim 9, wherein the electrical control assembly comprises:

the electrical control box (51) comprises an operation table top and a display table top, the operation table top is used for arranging the test plane (1), and the display table top is used for arranging a human-computer interface (56);

the foot pads (52) are arranged at the bottom of the electric control box (51) in a height-adjustable manner and used for adjusting the electric control box (51) to enable the operation table top to be parallel to the horizontal direction;

two start buttons (53) which are respectively arranged at two sides of the width direction of the electric control box (51), are in communication connection with the electric control assembly and are configured to send start commands to the electric control assembly when being pressed simultaneously;

the power switch (54) is arranged on the operation table board and used for controlling the opening or closing of power supply lines for the torque tester (3), the pressing cylinder (23), the lifting cylinder (45) and the electric control assembly; and

and the indicator lamp (55) is arranged on the operation table top and used for displaying the opening or closing state of the power switch (54).

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