Testing device for rotation precision of servo motor

Abstract

The utility model provides a servo motor rotation precision testing device, which belongs to the technical field of motor testing devices and comprises a detection table, a vertical plate, a sliding rail, a first sliding block, a guide rail, a hydraulic telescopic rod and an angle encoder. Servo motors of different sizes can be fixed, an open containing groove and a rectangular containing groove are formed in the containing frame and can be matched with a front end cover of the servo motor, the front end cover of the servo motor can be conveniently placed in the containing groove of the containing frame, the front end cover at the lower end of the servo motor is suspended, the whole servo motor is in a horizontal state, and the servo motor can be conveniently placed in the containing groove of the containing frame. And the servo motor can be pressed at the rear end through the hydraulic telescopic rod, so that the servo motor is prevented from shaking and deviating outwards during the test, the rotor shaft of the servo motor is prevented from deviating, and the test is more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of motor testing devices, in particular to a servo motor rotation accuracy testing device. Background Art

[0002] A servo motor is an engine that controls the operation of mechanical components in a servo system. It is an auxiliary motor indirect speed change device. The servo motor can control the speed and position accuracy very accurately.

[0003] Servo motors are widely used in precision machine tools, industrial robots and other equipment with relatively high requirements for accuracy and working reliability. The quality and accuracy of the servo motor itself are the basis for ensuring the accuracy of the above-mentioned precision equipment. Therefore, by quickly testing the rotation accuracy of the servo motor itself, it is possible to quickly verify and exclude the influence of the servo motor's built-in encoder accuracy and mechanical assembly accuracy on the servo motor's overall accuracy, so as to ensure the production quality of the servo motor, which is of great significance in actual production and application.

[0004] It is found in actual use that the existing servo motor accuracy test device has the following deficiencies:

[0005] Since the front cover of the servo motor is relatively protruding compared to the housing, the servo motor is in a "T" shape as a whole. When testing the servo motor, the servo motor needs to be placed horizontally. However, the protruding front cover of the servo motor makes it difficult to place the servo motor flat on a horizontal workbench, which not only affects the test efficiency of the servo motor, but also causes the servo motor that is not placed flat to vibrate easily during the test, affecting the test process;

[0006] In addition, during the test, the servo motor's rotor shaft rotates continuously, causing the placed servo motor to vibrate, which can easily cause the rotor shaft to deviate, resulting in the servo motor's rotor shaft and the angle encoder being unable to achieve theoretically complete coaxiality. During the high-precision test process, the accumulation of coaxiality errors affects the final test results.

[0007] Therefore, the present application provides a servo motor rotation accuracy test device to meet the needs. Utility Model Content

[0008] The utility model aims to solve the problems existing in the above-mentioned background technology and proposes a servo motor rotation accuracy testing device.

[0009] The technical problem to be solved by the utility model is to provide a servo motor rotation accuracy test device to solve the problems of the existing servo motor rotation accuracy test device.

[0010] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0011] A servo motor rotation accuracy test device comprises: a test platform, a vertical plate, a sliding track, a first slider, a guide rail, a hydraulic telescopic rod and an angle encoder, wherein the vertical plates are vertically installed at the left and right ends of the test platform, the sliding track is horizontally installed on the inner side of the vertical plate of the test platform, the first slider is installed on the inner side of the sliding track, the guide rail is installed on the side of the first slider, a slide groove is provided on the inner side of the guide rail, and a fixing component is installed on the inner side of the guide rail, in addition, an angle encoder is installed on the left vertical plate of the test platform, and a hydraulic telescopic rod is installed on the right vertical plate of the test platform.

[0012] Preferably, two groups of the fixing components are provided, and the two groups of fixing components are respectively located at the left and right ends of the guide rail in a mirror-symmetrical manner.

[0013] Preferably, the fixing assembly is composed of a first sliding block, a placement frame, a screw rod, a fixing plate and a nut;

[0014] The second slider is embedded in the slide groove of the guide rail, the placement rack is located at the upper end of the second slider, a screw is installed on the side of the placement rack, a fixing plate is installed at the inner end of the screw located at the placement rack, and a nut is installed at the outer end of the screw located at the placement rack.

[0015] Preferably, the placement rack is slidably connected to the guide rail via a second slider.

[0016] Preferably, the fixing plate is rectangular and placed vertically.

[0017] Preferably, the placement rack is in a "concave" shape, and an open placement groove is provided at the inner edge of the front end baffle of the placement rack, and the placement groove is in a rectangular shape.

[0018] Preferably, the hydraulic telescopic rod and the angle encoder are on the same axis, and the fixing assembly is located between the hydraulic telescopic rod and the angle encoder.

[0019] Compared with the prior art, the utility model has at least the following beneficial effects:

[0020] 1. By setting two sets of fixing components, the placement rack that can move laterally can fix servo motors of different sizes, thereby improving the extensiveness and adaptability of the test. The placement rack is provided with an open placement slot, and the rectangular placement slot can fit the front end cover of the servo motor, so that the front end cover of the servo motor can be conveniently placed in the placement slot of the placement rack, so that the front end cover of the servo motor at the lower end is suspended, so that the entire servo motor is in a horizontal state and will not tilt, making the servo motor more stable during the test;

[0021] 2. Use the hydraulic telescopic rod to push the servo motor toward the angle encoder at the rear end of the servo motor, insert the rotor shaft of the servo motor into the angle encoder, and perform a rotation accuracy test. The hydraulic telescopic rod can suppress the servo motor at the rear end to prevent the servo motor from shaking and deviating outward during the test, avoid the rotor shaft of the servo motor from deviating, and make the test more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the specific connection structure of the guide rail of the utility model;

[0025] Figure 3 This is a schematic diagram of the specific connection structure of the fixing component of the utility model;

[0026] Figure 4 For the utility model Figure 1 A is an enlarged schematic diagram of the structure.

[0027] [reference numerals]

[0028] 1-testing table; 2-vertical plate; 3-sliding track; 4-first slider; 5-guide rail; 6-second slider; 7-placing rack; 8-screw; 9-fixing plate; 10-nut; 11-hydraulic telescopic rod; 12-angle encoder; 501-slideway; 701-placing slot.

[0029] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0030] like Figure 1 , Figure 2 , Figure 3 and Figure 4A servo motor rotation accuracy testing device shown in the embodiment of the utility model includes: a testing platform 1, a vertical plate 2, a sliding track 3, a first slider 4, a guide rail 5, a hydraulic telescopic rod 11 and an angle encoder 12. The vertical plates 2 are vertically installed on the left and right ends of the testing platform 1, and the sliding track 3 is horizontally installed on the inner side of the vertical plate 2 of the testing platform 1, the first slider 4 is installed on the inner side of the sliding track 3, the guide rail 5 is installed on the side of the first slider 4, a slide groove 501 is arranged on the inner side of the guide rail 5, and a fixing component is installed on the inner side of the guide rail 5. In addition, an angle encoder 12 is installed on the left vertical plate 2 of the testing platform 1, and a hydraulic telescopic rod 11 is installed on the right vertical plate 2 of the testing platform 1.

[0031] In the present embodiment, two groups of fixing components are provided, and the two groups of fixing components are respectively located at the left and right ends of the guide rail 5 in a mirror-symmetrical manner. When placing the servo motor, the two ends of the servo motor can be respectively placed on the placement racks 7 of the two groups of fixing components. The placement racks 7 are mirror-symmetrical, so that the placement grooves 701 therebetween form a rectangular shape, which can fit the front end cover of the servo motor, making it convenient to place the front end cover of the servo motor into the placement groove 701 of the placement rack 7, so that the front end cover of the servo motor at the lower end is suspended in the air, so that the entire servo motor is in a horizontal state and will not tilt up, making the servo motor more stable during testing.

[0032] In this embodiment, the fixing assembly is composed of a second slider 6, a placement frame 7, a screw 8, a fixing plate 9 and a nut 10;

[0033] The first slider 6 is embedded in the slide groove 501 of the guide rail 5, the placement rack 7 is located at the upper end of the second slider 6, a screw 8 is installed on the side of the placement rack 7, a fixing plate 9 is installed on the inner end of the screw 8 located on the placement rack 7, and a nut 10 is installed on the outer end of the screw 8 located on the placement rack 7.

[0034] In this embodiment, the placement rack 7 is slidably connected to the guide rail 5 via the second slider 6. The second slider 6 at the bottom of the placement rack 7 can slide horizontally in the slide groove 501 of the guide rail 5. The interval between the placement racks 7 can be flexibly adjusted, thereby facilitating the fixation of servo motors of different sizes and improving the breadth and adaptability of the test.

[0035] In this embodiment, the fixing plate 9 is rectangular and is placed vertically. By adjusting the depth of the screw 8 on the placement rack 7, the fixing plate 9 can fit onto the rear end of the servo motor to fix the servo motor on the placement rack 7.

[0036] In this embodiment, the placement rack 7 is in a "concave" shape, and an open placement groove 701 is provided at the inner edge of the front end baffle of the placement rack 7, and the placement groove 701 is rectangular. By providing the open placement groove 701, the front end cover of the servo motor can be placed in the placement groove 701 of the placement rack 7.

[0037] In this embodiment, the hydraulic telescopic rod 11 and the angle encoder 12 are on the same axis, and the fixed component is located between the hydraulic telescopic rod 11 and the angle encoder 12, so that during the test, the rotating shaft of the servo motor is on the same axis as the entire hydraulic telescopic rod 11 and the angle encoder 12. The hydraulic telescopic rod 11 pushes the servo motor toward the angle encoder 12 at the rear end of the servo motor, and inserts the rotor shaft of the servo motor into the angle encoder 12 to perform a rotation accuracy test. The hydraulic telescopic rod 11 can press the servo motor at the rear end to prevent the servo motor from shaking during the test and avoid the rotor shaft of the servo motor from deviating, making the test more accurate.

Claims

1. A servo motor rotation accuracy test device, It is characterized in that include: A detection platform (1), a vertical plate (2), a sliding track (3), a first slider (4), a guide rail (5), a hydraulic telescopic rod (11) and an angle encoder (12); the vertical plates (2) are vertically installed at the left and right ends of the detection platform (1); the sliding track (3) is horizontally installed on the inner side of the vertical plate (2) of the detection platform (1); the first slider (4) is installed on the inner side of the sliding track (3); the guide rail (5) is installed on the side of the first slider (4); a slide groove (501) is arranged on the inner side of the guide rail (5); a fixing component is installed on the inner side of the guide rail (5); in addition, an angle encoder (12) is installed on the left vertical plate (2) of the detection platform (1); and a hydraulic telescopic rod (11) is installed on the right vertical plate (2) of the detection platform (1).

2. The servo motor rotation accuracy test device according to claim 1, Features: The fixing components are provided in two groups, and the two groups of fixing components are respectively located at the left and right ends of the guide rail (5) in a mirror-symmetrical manner.

3. The servo motor rotation accuracy test device according to claim 1 or 2, Features: The fixing assembly is composed of a second sliding block (6), a placement frame (7), a screw rod (8), a fixing plate (9) and a nut (10); The second slider (6) is embedded in the slide groove (501) of the guide rail (5); the placement rack (7) is located at the upper end of the second slider (6); a screw rod (8) is installed on the side of the placement rack (7); a fixing plate (9) is installed on the inner end of the screw rod (8) located on the placement rack (7); and a nut (10) is installed on the outer end of the screw rod (8) located on the placement rack (7).

4. The servo motor rotation accuracy test device according to claim 3, Features: The placement rack (7) is slidably connected to the guide rail (5) via a second sliding block (6).

5. The servo motor rotation accuracy test device according to claim 3, Features: The fixing plate (9) is rectangular in shape, and the fixing plate (9) is placed vertically.

6. The servo motor rotation accuracy test device according to claim 3, Features: The placement rack (7) is in a "concave" shape, and an open placement groove (701) is provided at the inner edge of the front end baffle of the placement rack (7), and the placement groove (701) is in a rectangular shape.

7. The servo motor rotation accuracy test device according to claim 1, Features: The hydraulic telescopic rod (11) and the angle encoder (12) are located on the same axis, and the fixing component is located between the hydraulic telescopic rod (11) and the angle encoder (12).

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