Concentricity detection device for servo motor production

Abstract

The utility model discloses a concentricity detection device for servo motor production, and belongs to the field of servo motor production. A concentricity detection device for servo motor production comprises a placing table, a limiting assembly is arranged on the placing table, the concentricity detection device further comprises a connecting plate arranged on the placing table in a lifting mode, a cleaning disc is fixedly connected to the connecting plate, a spray head is fixedly connected to the interior of the cleaning disc, the air injection end of the spray head faces a motor shaft, and a dial indicator body is detachably connected to the cleaning disc; the blocking cover is slidably connected to the bottom of the cleaning disc, and the detection end of the dial indicator body extends into a cavity of the blocking cover; according to the utility model, dust on the surface of the induction rod or the motor shaft can be blown to the outside by using the nozzle, then the motor shaft is rotated, and then the induction rod on the dial indicator body is used for measurement, so that the accuracy of concentricity measurement of the dial indicator body and the stability of results can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of servo motor production, in particular to a concentricity detection device for servo motor production. Background Art

[0002] Servo motor also refers to servo motor, which is also called executive motor. In automatic control system, it is used as executive element to convert the received electrical signal into angular displacement or angular velocity output on the motor shaft. It is divided into two categories: DC and AC servo motor. Its main characteristics are that there is no self-rotation when the signal voltage is zero, and the speed decreases uniformly with the increase of torque. In the production process of servo motor, it is necessary to detect the concentricity of the shaft and the shell. Concentricity refers to an important technical indicator for evaluating cylindrical workpieces. Coaxiality error directly affects the assembly and use of workpieces. Concentricity is a special form of coaxiality. Coaxiality error directly affects the matching accuracy and use of workpieces. The coaxiality error is reflected in the non-concentricity of the center of the circle on the cross section, which is concentricity. The concentricity error is the degree of deviation of the center of the circle.

[0003] After searching, the Chinese patent publication number CN219121293U discloses a concentricity detection device for servo motor production, including a base plate, a lifting mechanism is provided at the left end of the base plate, a front and rear adjustment mechanism is provided at the inner middle end of the base plate, a dial indicator is provided on the inner side of the vertical rod, a turntable is rotatably connected to the inner side of the lifting plate, a servo motor is provided on the inner side of the positioning mechanism, and a rotating mechanism is provided at the bottom end of the turntable.

[0004] During use of the above patent, it is first necessary to ensure that the sensing rod of the dial indicator is facing the axis of the servo motor, then rotate the servo motor, record the reading of the dial indicator, perform multiple measurements, and take the average as the final result. However, when used in factories, workshops or laboratories, there will inevitably be dust in the air. This dust may fall on the surface of the sensing rod or the motor shaft during the measurement process, which may affect the measurement accuracy and stability of the results. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that dust is inevitably present in the air, and the dust may fall on the surface of the sensing rod or the motor shaft during the measurement process, which may affect the measurement accuracy and the stability of the results, and to propose a concentricity detection device for servo motor production.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A concentricity detection device for servo motor production includes a placement table, a limit position assembly is arranged on the placement table, and also includes: a connecting plate which is lifted and lowered on the placement table, wherein a cleaning disk is fixedly connected to the connecting plate, a nozzle is fixedly connected inside the cleaning disk, the jet end of the nozzle faces the motor shaft, a dial indicator body is detachably connected to the cleaning disk; and a baffle is slidably connected to the bottom of the cleaning disk, and the detection end of the dial indicator body extends into the cavity of the baffle.

[0008] In order to facilitate the adjustment of the position of the baffle cover, preferably, a guide plate is fixedly connected to the bottom of the cleaning disk, a groove is provided on the guide plate, the baffle cover is slidably connected in the groove, a return spring is provided in the groove, and both ends of the return spring are fixedly connected to the groove and the baffle cover respectively.

[0009] In order to facilitate the supply of gas to the nozzle, further, a diversion chamber is opened in the cleaning disk, the diversion chamber is connected with the nozzle, and the diversion chamber is connected with the air pump through a pipeline.

[0010] In order to facilitate the lifting and lowering movement of the connecting plate, preferably, a supporting plate is fixedly connected to the placing table, a sliding groove is opened on the supporting plate, a reciprocating screw is rotatably connected in the sliding groove, a movable block is threadedly connected to the reciprocating screw, and the movable block is in contact with the inner wall of the sliding groove, and the connecting plate is slidably connected to the movable block.

[0011] In order to facilitate the rear limit adjustment of the position of the connecting plate, preferably, a locking bolt is threadedly connected to the connecting plate, and the contact end of the locking bolt can be against the outer wall of the movable block.

[0012] In order to facilitate the fixation of the servo motor, preferably, the limiting assembly includes a three-jaw chuck fixedly connected to the placement table.

[0013] Compared with the prior art, the utility model provides a concentricity detection device for servo motor production, which has the following beneficial effects:

[0014] 1. The concentricity detection device for servo motor production can blow dust on the surface of the sensing rod or motor shaft to the outside through the nozzle, then rotate the motor shaft, and then use the sensing rod on the dial gauge body to measure, thereby improving the accuracy of the concentricity measurement of the dial gauge body and the stability of the results;

[0015] 2. The concentricity detection device for servo motor production can make the bottom of the baffle cover against the outside of the servo motor, so that the baffle cover and the guide plate can form a semi-closed shield outside the motor shaft, thereby blocking dust in the external air and preventing dust from falling on the sensing rod or the motor shaft surface.

[0016] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model can use a nozzle to blow the dust on the surface of the sensing rod or the motor shaft to the outside, and then rotate the motor shaft, and then use the sensing rod on the dial indicator body to measure, thereby improving the accuracy of the concentricity measurement of the dial indicator body and the stability of the results. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of a first-angle view of a placement table for a concentricity detection device for servo motor production proposed by the utility model;

[0018] Figure 2 A schematic diagram of a second viewing angle of a placement table for a concentricity detection device for servo motor production proposed by the utility model;

[0019] Figure 3 This is a schematic structural diagram of a cross-section of a cleaning disk of a concentricity detection device for servo motor production proposed by the utility model;

[0020] Figure 4 The utility model is a schematic diagram of a support plate of a concentricity detection device for servo motor production.

[0021] In the figure: 1. placing table; 101. three-jaw chuck; 2. supporting plate; 201. reciprocating screw; 202. movable block; 3. connecting plate; 301. locking bolt; 4. cleaning plate; 401. diverter chamber; 5. nozzle; 6. guide plate; 601. reset spring; 7. shield; 8. dial indicator body. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0024] Example:

[0025] Reference Figure 1-Figure 4A concentricity detection device for servo motor production includes a placement table 1, on which a limit assembly is arranged, and the limit assembly includes a three-jaw chuck 101 fixedly connected to the placement table 1, and the three-jaw chuck 101 is composed of a chuck body, movable jaws and a jaw driving mechanism. Under the three jaw guide parts on the three-jaw chuck 101, there are threads that mesh with the flat threads on the back of the disc bevel gear. When the small bevel gear is rotated through the square hole with a wrench or a driving motor, the disc gear rotates, and the flat threads on the back simultaneously drive the three jaws to approach or withdraw from the center, so as to clamp servo motors of different diameters and fix them on the placement table 1.

[0026] A support plate 2 is also fixedly connected to the placement table 1, and a slide groove is opened on the support plate 2. A reciprocating screw 201 is rotatably connected in the slide groove. A movable block 202 is threadedly connected to the reciprocating screw 201, and the movable block 202 is in contact with the inner wall of the slide groove. Then the connecting plate 3 is slidably connected to the movable block 202.

[0027] Reference Figure 3 In the figure, a cleaning disc 4 is fixedly connected to the connecting plate 3, the upper part of the cleaning disc 4 is in a closed state, and a cavity is opened in the middle, a nozzle 5 is fixedly connected to the inner wall of the cavity, and the jet end of the nozzle 5 faces the motor shaft.

[0028] A diverter chamber 401 is provided in the cleaning disk 4, and the diverter chamber 401 is connected to the nozzle 5, and the diverter chamber 401 is connected to the air pump through a pipeline. The air pump can provide gas to the diverter chamber 401, and a filter can be set on the pipeline to intercept impurities in the air entering the diverter chamber 401.

[0029] A connecting plate 3 is also slidably connected to the movable block 202, and a locking bolt 301 is threadedly connected to the connecting plate 3. By rotating the locking bolt 301 clockwise so that the contact end of the locking bolt 301 abuts against the outer wall of the movable block 202, the position of the connecting plate 3 can be adjusted, so that the position of the cleaning disk 4 can be adjusted.

[0030] Here, the reciprocating screw 201 can be driven to rotate by a driving motor or an electric motor. When the reciprocating screw 201 rotates, the movable block 202 moves back and forth in the slide groove, thereby driving the cleaning disk 4 to move up and down.

[0031] A guide plate 6 is also fixedly connected to the bottom of the cleaning disk 4. A groove is opened on the guide plate 6, and a baffle 7 is slidably connected in the groove. A reset spring 601 is arranged in the groove. Both ends of the reset spring 601 are respectively fixedly connected to the groove and the baffle 7. The baffle 7 is semi-closed, so that the gas sprayed from the nozzle 5 can flow out from here. A dial indicator body 8 is detachably connected to the cleaning disk 4, and the detection end of the dial indicator body 8 extends into the cavity of the baffle 7. The dial indicator body 8 is used to detect the concentricity of the servo motor.

[0032] When the concentricity of the servo motor needs to be detected, the reciprocating screw 201 is driven to rotate, so that its movable block 202 drives the connecting plate 3 to move upward, and the cleaning disk 4 is moved to the top of the servo motor shaft. Then, the position of the connecting plate 3 is adaptively adjusted by the locking bolt 301, and then the reciprocating screw 201 is driven to rotate again, so that the movable block 202 drives the connecting plate 3 to move downward, and the cleaning disk 4 is moved to the outside of the servo motor.

[0033] At this time, the bottom of the baffle 7 will be against the outside of the servo motor, and the return spring 601 in the groove will be compressed, so that the baffle 7 and the guide plate 6 form a semi-closed mask on the outside of the motor shaft. At this time, the air pump switch is turned on, and the nozzle 5 sprays gas to the outside of the sensing rod of the motor shaft and the dial indicator body 8, thereby blowing away the dust on the surface of the sensing rod or the motor shaft. In this process, the gas sprayed by the nozzle 5 will cause the baffle 7 and the guide plate 6 to form a semi-closed mask on the outside of the motor shaft to allow gas to flow inside, thereby blocking dust in the external air and preventing dust from falling on the sensing rod or the motor shaft surface. The dust on the sensing rod or the motor shaft surface can be blown to the outside through the nozzle 5, and then the motor shaft is rotated, and the sensing rod on the dial indicator body 8 is used for measurement, thereby improving the accuracy of the concentricity measurement of the dial indicator body 8 and the stability of the results.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A concentricity detection device for servo motor production, comprising a placement table (1), on which a limit position component is arranged, characterized in that: Also includes: lifting and lowering a connecting plate (3) disposed on the placing platform (1); The connection plate (3) is fixedly connected to a cleaning disc (4), a nozzle (5) is fixedly connected inside the cleaning disc (4), the jet end of the nozzle (5) faces the motor shaft, and a dial gauge body (8) is detachably connected to the cleaning disc (4); A shield (7) is slidably connected to the bottom of the cleaning plate (4), and the detection end of the dial gauge body (8) extends into the cavity of the shield (7).

2. A concentricity detection device for servo motor production according to claim 1, characterized in that: A guide plate (6) is fixedly connected to the bottom of the cleaning disk (4), a groove is provided on the guide plate (6), the blocking cover (7) is slidably connected in the groove, a return spring (601) is provided in the groove, and two ends of the return spring (601) are respectively fixedly connected to the groove and the blocking cover (7).

3. A concentricity detection device for servo motor production according to claim 2, characterized in that: A diversion chamber (401) is provided in the cleaning disk (4), the diversion chamber (401) is connected to the nozzle (5), and the diversion chamber (401) is connected to the air pump through a pipeline.

4. The concentricity detection device for servo motor production according to claim 1, characterized in that: The placing table (1) is fixedly connected to a support plate (2), the support plate (2) is provided with a slide groove, a reciprocating screw rod (201) is rotatably connected in the slide groove, a movable block (202) is threadedly connected to the reciprocating screw rod (201), and the movable block (202) is in contact with the inner wall of the slide groove, and the connecting plate (3) is slidably connected to the movable block (202).

5. A concentricity detection device for servo motor production according to claim 4, characterized in that: A locking bolt (301) is threadedly connected to the connecting plate (3), and a contact end of the locking bolt (301) can abut against an outer wall of the movable block (202).

6. The concentricity detection device for servo motor production according to claim 1, characterized in that: The limiting assembly comprises a three-jaw chuck (101) fixedly connected to the placement platform (1).

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