Device for testing service life of linear motor

Abstract

The utility model discloses a device for testing the service life of a linear motor, and belongs to the technical field of motor testing. The device mainly comprises a test board, the upper end of which is provided with a fixed plate; the eddy current brake is mounted at the upper end of the fixing plate; the torque rotating speed sensor is connected to one side of the eddy current brake; the coupling is matched with the other side of the torque and rotating speed sensor, and the coupling is used for installing and connecting a motor to be tested; the clamping mechanism is arranged on one side of the test board, the clamping mechanism is provided with a placement seat, vertical plates are installed on the two sides of the upper end of the placement seat, and a clamping plate is slidably connected to the upper end face of the placement seat; and the adjusting mechanism is arranged below the clamping mechanism. According to the linear motor service life testing device, the fixing seat does not need to be frequently replaced manually, manpower and material resources are reduced, and the testing time of each motor is also saved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of motor testing, in particular to a linear motor service life testing device. BACKGROUND

[0002] Linear motors are also called linear motors, and linear motors include lead screw linear motors. The lead screw linear motor combines the mature technology of rotary motors and the demand for linear motion and is widely used in various machines and automation equipment.

[0003] The lead screw linear motor has a servo motor for driving. After the servo motor is manufactured, its service life needs to be tested. The rotational speed and torque of the motor are usually tested by a testing device, so as to predict the service life of the key components of the motor.

[0004] When testing the motor, different fixed seats of different heights are used to cooperate with the testing table to test the motor, because there are many types of servo motors and the height of the testing table is difficult to change. Although this does not affect the test results, the fixed seat needs to be frequently replaced manually, and the output shaft of the motor needs to be adjusted and aligned multiple times, which not only increases the manpower and material resources, but also greatly prolongs the test time of each motor, affecting the test efficiency. Therefore, it is necessary to provide a linear motor service life testing device to solve the above problems.

[0005] It should be noted that the above information disclosed in the background section of the present application is only used to understand the background technology of the concept of the present application, and therefore, it can contain information that does not constitute prior art. SUMMARY

[0006] Based on the above problems existing in the prior art, the present application solves the problem of providing a linear motor service life testing device, which does not need to frequently replace the fixed seat manually, reduces the manpower and material resources, and saves the test time of each motor.

[0007] The technical solution adopted by the present application to solve the technical problems is: a linear motor service life testing device, comprising:

[0008] A testing table, the upper end of the testing table is provided with a fixed plate;

[0009] An eddy current brake, the eddy current brake is installed at the upper end of the fixed plate;

[0010] A torque and speed sensor, the torque and speed sensor is connected to one side of the eddy current brake;

[0011] A shaft coupling, the shaft coupling is matched to the other side of the torque and speed sensor, and the shaft coupling is used to install and connect the motor to be tested;

[0012] The clamping mechanism is arranged on one side of the test table, and has:

[0013] The upper end of the placement seat is provided with vertical plates on both sides, and the upper end surface of the placement seat is slidably connected with a clamping plate used for clamping the motor to be tested.

[0014] The adjusting mechanism is arranged below the clamping mechanism and is used for adjusting the height of the clamping mechanism.

[0015] Further, the clamping plate is fixedly arranged towards the vertical plate and is slidably connected with a slide rod on the vertical plate, and a compression spring is fixedly arranged between the clamping plate and the vertical plate and is sleeved on the outer side of the slide rod.

[0016] Further, the adjusting mechanism has a bottom plate fixedly arranged on one side of the test table, and the upper end of the bottom plate is fixedly provided with a stop block on both sides, and the stop block is provided with a second sliding groove, and two groups of adjusting rods are slidably arranged in the second sliding grooves, and two groups of second adjusting plates are rotatably arranged on the adjusting rods.

[0017] Further, a top plate is arranged above the bottom plate, the placement seat is fixedly arranged on the top plate, the other ends of the two groups of second adjusting plates are respectively hingedly arranged on the side ends of the top plate, a first sliding groove is arranged on the side end of the top plate away from the second adjusting plates, a connecting rod is slidably arranged in the first sliding groove, first adjusting plates are rotatably arranged on the two outer ends of the connecting rod, a mounting seat is fixedly arranged on the upper end of the bottom plate, the other ends of the first adjusting plates are rotatably arranged on the mounting seat, and the first adjusting plates and the second adjusting plates are cross arranged and hingedly arranged.

[0018] Further, a first stop plate is fixedly arranged on one side of the upper end of the bottom plate, a second stop plate is fixedly arranged between the first stop plate and the mounting seat, an adjusting block is fixedly arranged on the adjusting rod, a screw rod is threadedly connected with the adjusting block and the first stop plate, a second stop plate is rotatably arranged on the other end of the screw rod, and a rotating disc is fixedly arranged on the other end of the screw rod.

[0019] Further, the shaft coupling can be detachably replaced.

[0020] The beneficial effects of the application are that the linear motor service life testing device provided by the application can replace the fixing seat without manual replacement when testing different types of servo motors, thereby reducing the manpower and material resources, saving the testing time of each motor, and improving the testing efficiency.

[0021] In addition to the above-described objects, features and advantages, the present application has other objects, features and advantages. The present application will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification. The illustrations are shown schematically in the drawings:

[0023] Figure 1 It is a schematic diagram of the overall life test device for a linear motor in the present application;

[0024] Figure 2 It is Figure 1 different schematic diagrams of the clamping mechanism in the present application;

[0025] Figure 3 It is Figure 2 a separate schematic diagram of the adjusting mechanism in the present application;

[0026] In the drawings, various reference numerals represent various features that are described in the following description:

[0027] 1, test bench; 11, fixed plate; 12, eddy current brake; 13, torque speed sensor; 14, shaft coupling; 15, chassis;

[0028] 2, clamping mechanism; 21, placement seat; 22, vertical plate; 23, clamping plate; 24, sliding rod; 25, compression spring;

[0029] 3, adjusting mechanism; 31, bottom plate; 311, stop block; 312, second sliding groove; 313, mounting seat; 32, adjusting rod; 33, second adjusting plate; 34, top plate; 341, first sliding groove; 342, connecting rod; 35, first adjusting plate; 36, second stop plate; 37, first stop plate; 38, adjusting block; 39, screw rod; 391, turntable. DETAILED DESCRIPTION

[0030] It should be noted that the embodiments and features in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] In order to enable persons skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by persons skilled in the art without creative labor should belong to the scope of protection of the present application.

[0032] AsFigure 1 As shown, the present application provides a linear motor service life test device, comprising a test table 1, the upper end of the test table 1 is fixedly installed with a fixed plate 11, the upper end of the fixed plate 11 is fixedly installed with an eddy current brake 12, one side of the eddy current brake 12 is connected with a torque and speed sensor 13, the torque and speed sensor 13 is used to measure the torque and speed of the motor, and the speed of the motor is accurately controlled or smooth braking is realized through the eddy current brake 12.

[0033] Meanwhile, a shaft coupling 14 is also installed on the other side of the torque and speed sensor 13, the shaft coupling 14 is used to install and connect the motor to be tested, in the present application, the shaft coupling 14 can be disassembled and replaced, which is convenient for adapting to different models of motor testing.

[0034] And, one side of the test table 1 is fixedly installed with a chassis 15, the upper end of the chassis 15 is provided with an adjusting mechanism 3, the upper end of the adjusting mechanism 3 is installed with a clamping mechanism 2, the motor to be tested is fixed through the clamping mechanism 2, then the motor to be tested is started to rotate, and the speed and torque of the motor are tested through the torque and speed sensor 13 and the eddy current brake 12, so as to predict the service life of the key components of the motor.

[0035] As shown in the figure, Figure 2 The clamping mechanism 2 has a placing seat 21 installed on the upper end of the adjusting mechanism 3, the upper end of the placing seat 21 is fixedly installed with a vertical plate 22 on both sides, and the upper end surface of the placing seat 21 is slidably connected with two groups of clamping plates 23, the clamping plate 23 is fixedly installed with a sliding rod 24 towards the vertical plate 22, the sliding rod 24 is slidably connected with the vertical plate 22, and the clamping plate 23 and the vertical plate 22 are fixedly installed with a compression spring 25, the compression spring 25 is sleeved on the outer side of the sliding rod 24, so that when the motor is installed, the clamping plate 23 is pushed outward, the sliding rod 24 slides and squeezes the compression spring 25 to shrink, until the motor is completely placed between the clamping plates 23, stop pushing the clamping plate 23, the clamping plate 23 is pushed to the opposite direction by the rebound of the compression spring 25 to clamp the motor, so as to ensure the stability of the motor during detection.

[0036] As shown in the figure, Figure 3 The adjusting mechanism 3 adjusts the height of the clamping mechanism 2, the adjusting mechanism 3 has a bottom plate 31 fixedly installed on the upper end of the chassis 15, the upper end of the bottom plate 31 is fixedly installed with a stop block 311 on both sides, the stop block 311 is provided with a second sliding groove 312, two groups of second sliding grooves 312 are slidably connected with an adjusting rod 32, and the adjusting rod 32 is rotatably connected with two groups of second adjusting plates 33.

[0037] Meanwhile, a top plate 34 is arranged right above the bottom plate 31, the placing seat 21 is fixedly installed on the top plate 34, the other ends of the two groups of second adjusting plates 33 are respectively hingedly connected to the side ends of the top plate 34, a first sliding groove 341 is arranged at a position of the side end of the top plate 34 away from the second adjusting plates 33, a connecting rod 342 is slidably connected in the first sliding groove 341, first adjusting plates 35 are rotatably connected to the two side outer ends of the connecting rod 342, and the upper end of the bottom plate 31 is further fixedly installed with a mounting seat 313, the other ends of the first adjusting plates 35 are rotatably connected to the mounting seat 313, and in the application, the first adjusting plates 35 and the second adjusting plates 33 are cross arranged and hingedly connected.

[0038] Furthermore, a first baffle plate 37 is fixedly installed at the upper end side of the bottom plate 31, the second baffle plate 36 is fixedly installed between the first baffle plate 37 and the mounting seat 313, the adjusting rod 32 is further fixedly installed with an adjusting block 38, in the application, the adjusting block 38 and the first baffle plate 37 are threadedly connected with a screw rod 39, the other end of the screw rod 39 is rotatably connected with the second baffle plate 36, the other end of the screw rod 39 is fixedly installed with a rotating disc 391, so that the rotating disc 391 is rotated to drive the screw rod 39 to rotate, then the adjusting block 38 and the adjusting rod 32 are horizontally moved, the inclination angle of the second adjusting plate 33 is changed, the height of the top plate 34 is also changed, in this process, the connecting rod 342 is slid in the first sliding groove 341, the angle of the first adjusting plate 35 is changed, and the height of the top plate 34 is adjusted.

[0039] Therefore, when the motor is tested, the motor is first clamped and placed in the middle of the clamping plate 23, then the height of the motor is adjusted by the adjusting mechanism 3, until the output shaft of the motor is flush with the shaft coupling 14, at this time, the vertical position of the motor is manually adjusted to make the output shaft of the motor cooperated with the shaft coupling 14, and finally the alignment is tested.

[0040] Therefore, when the motor is tested, the motor is first clamped and placed in the middle of the clamping plate 23, then the height of the motor is adjusted by the adjusting mechanism 3, until the output shaft of the motor is flush with the shaft coupling 14, at this time, the vertical position of the motor is manually adjusted to make the output shaft of the motor cooperated with the shaft coupling 14, and finally the alignment is tested.

[0041] The above only describes the preferred embodiments of the application and is not used to limit the application, and various changes and modifications can be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A linear motor end-of-life testing apparatus, characterized by: The utility model relates to a test platform for motor, which comprises: a test platform (1) having a fixed plate (11) installed at the upper end thereof; an eddy current brake (12) installed at the upper end of the fixed plate (11); a torque and speed sensor (13) connected to one side of the eddy current brake (12); a shaft coupling (14) fitted to the other side of the torque and speed sensor (13) and used for mounting and connecting a motor to be tested; a clamping mechanism (2) provided at one side of the test platform (1) and having: a placing seat (21) having vertical plates (22) installed at both sides of the upper end thereof, and a clamping plate (23) slidably connected to the upper end surface of the placing seat (21) and used for clamping the motor to be tested; an adjusting mechanism (3) provided below the clamping mechanism (2) and used for adjusting the height of the clamping mechanism (2).

2. A linear motor end-of-life testing apparatus as claimed in claim 1, wherein: The clamping plate (23) is fixedly installed with a slide rod (24) towards the vertical plates (22), the slide rod (24) is slidably connected to the vertical plates (22), and a compression spring (25) is fixedly installed between the clamping plate (23) and the vertical plates (22) and sleeved on the outer side of the slide rod (24).

3. A linear motor end-of-life testing apparatus as claimed in claim 1, wherein: The adjusting mechanism (3) has a bottom plate (31) installed at one side of the test platform (1), the bottom plate (31) has stop blocks (311) fixedly installed at both sides of the upper end thereof, the stop blocks (311) are provided with second sliding grooves (312), two groups of the second sliding grooves (312) are slidably connected with adjusting rods (32), and the adjusting rods (32) are rotatably connected with two groups of second adjusting plates (33).

4. A linear motor end-of-life testing apparatus as claimed in claim 3, wherein: A top plate (34) is provided directly above the bottom plate (31), the placing seat (21) is fixedly installed on the top plate (34), the other ends of the two groups of second adjusting plates (33) are respectively hingedly connected to the side ends of the top plate (34), a first sliding groove (341) is formed at a position of the side end of the top plate (34) away from the second adjusting plates (33), a connecting rod (342) is slidably connected in the first sliding groove (341), first adjusting plates (35) are rotatably connected to both outer ends of the connecting rod (342), the bottom plate (31) is fixedly installed with a mounting seat (313), the other ends of the first adjusting plates (35) are rotatably connected to the mounting seat (313), and the first adjusting plates (35) and the second adjusting plates (33) are crossly arranged and hingedly connected.

5. A linear motor end-of-life testing apparatus as claimed in claim 4, wherein: The upper end side of the bottom plate (31) is fixedly provided with a first baffle (37), the first baffle (37) and the mounting seat (313) are fixedly provided with a second baffle (36), the adjusting rod (32) is fixedly provided with an adjusting block (38), the adjusting block (38) and the first baffle (37) are threadedly connected with a screw rod (39), the other end of the screw rod (39) is rotatably connected with the second baffle (36), and the other end of the screw rod (39) is fixedly provided with a rotating disc (391).

6. A linear motor end-of-life testing apparatus as claimed in claim 1, wherein: The coupling (14) can be disassembled and replaced.

Images