Positioning and locking mechanism for testing frequency converter

Abstract

The utility model discloses a positioning and locking mechanism for testing a frequency converter, and belongs to the field of electronic equipment testing devices. Comprising a base, two fixing seats fixedly connected to the top of the base, a fixing plate arranged at the top of the base, two mounting seats fixedly connected to the top of the fixing plate and a controller fixedly mounted on the front face of the fixing seat on the left side. And overturning clamping mechanisms extending to the outer parts of the two mounting seats are arranged in the two mounting seats, and each overturning clamping mechanism comprises a gear motor fixedly mounted on the outer part of the mounting seat on the right side. According to the positioning and locking mechanism for frequency converter testing, a speed reduction motor is started to work through a controller, a transmission gear rotates and meshes to drive a driven gear, a rotating shaft and a clamping seat to rotate, and a frequency converter body is conveniently turned over and adjusted; frequency converter bodies of different sizes are clamped and fixed, and the advantage of facilitating testing is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment testing devices, in particular to a positioning and locking mechanism for frequency converter testing. Background Art

[0002] The frequency converter is a power control device that uses frequency conversion technology and microelectronics technology to control AC motors by changing the working power frequency of the motor. The frequency converter is mainly composed of rectification, filtering, inversion, braking unit, drive unit, detection unit, microprocessor unit, etc. The frequency converter adjusts the voltage and frequency of the output power supply by the internal IGBT opening and closing, and provides the required power supply voltage according to the actual needs of the motor, thereby achieving the purpose of energy saving and speed regulation. In addition, the frequency converter has many protection functions, such as over-current, over-voltage, overload protection, etc. With the continuous improvement of industrial automation, frequency converters have also been widely used.

[0003] In the production process of the frequency converter, a positioning and locking mechanism for the frequency converter test is needed. After searching, the Chinese patent CN219799560U in the prior art discloses a positioning and locking mechanism for the frequency converter test, including a base, a clamping mechanism is arranged inside the base, and a lifting mechanism is arranged at the bottom of the base. The clamping mechanism includes a vertical clamping assembly and a horizontal clamping assembly, and the vertical clamping assembly is arranged inside the base, and the horizontal clamping assembly is arranged at the top of the base. The utility model utilizes the horizontal clamping assembly, which can realize synchronous clamping by tightening the spring, making the clamping more convenient, and a vertical clamping assembly is arranged to clamp the top of the equipment, and cooperate with the horizontal clamping assembly to clamp the equipment in all directions to prevent loosening during testing, and better ensure the test accuracy of the equipment. The height of the device can be adjusted by the lifting mechanism.

[0004] However, the utility model inverter testing positioning and locking mechanism can adjust the height of the device through the lifting mechanism. The locking mechanism is not convenient for adjusting the flip angle of the inverter when in use, and manual adjustment of the angle of the inverter is required, which seriously affects the testing efficiency of the inverter and cannot meet the use requirements. Therefore, a positioning and locking mechanism for inverter testing is proposed to solve the above problems. Utility Model Content

[0005] The utility model aims to solve one of the technical problems in the related art to at least a certain extent. To this end, one purpose of the utility model is to propose a positioning and locking mechanism for testing a frequency converter, which has the advantages of being easy to test and highly practical, and solves the problem that the height of the device can be adjusted by setting a lifting mechanism in the existing positioning and locking mechanism for testing a frequency converter, but the locking mechanism is not convenient for adjusting the flip angle of the frequency converter when in use, and the angle of the frequency converter needs to be adjusted manually, which seriously affects the test efficiency of the frequency converter and cannot meet the use requirements.

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

[0007] Provided is a positioning and locking mechanism for testing a frequency converter, comprising a base, two fixing seats fixedly connected to the top of the base, a fixing plate arranged on the top of the base, two mounting seats fixedly connected to the top of the fixing plate, and a controller fixedly installed on the front of the fixing seat on the left side, wherein the inside of the two mounting seats are both provided with a flip clamping mechanism extending to the outside thereof;

[0008] The flip clamping mechanism includes a reduction motor fixedly mounted on the outside of the mounting seat on the right side and a rotating shaft rotatably connected to the inside of the mounting seat on the right side, a transmission gear is fixedly connected to the output shaft of the reduction motor, a driven gear meshing with the transmission gear is fixedly connected to the end of the rotating shaft close to the reduction motor, a clamping seat is fixedly connected to the end of the rotating shaft away from the driven gear, an electric push rod extending into the inside of the clamping seat is fixedly mounted on the top of the clamping seat, and a clamp is fixedly connected to the output end of the electric push rod.

[0009] Furthermore, the two flip clamping mechanisms are symmetrically distributed on the outside of the two mounting seats, and the outside of the reduction motor is fixedly connected to a mounting frame fixedly connected to the outer wall of the fixing seat.

[0010] Furthermore, the rotating shaft is a solid cylinder, and a bearing matching the rotating shaft is fixedly installed inside the clamping seat.

[0011] Furthermore, the electric push rod is electrically connected to the controller, and the bottom of the clamp is fixedly connected with anti-slip rubber.

[0012] Furthermore, two lifting mechanisms for lifting and lowering the fixed plate are arranged on the top of the base, and the lifting mechanisms include a servo motor fixedly mounted on the outside of the right fixed seat and two fixed pulleys rotatably mounted on the outside of the right fixed seat, and a retracting wheel is fixedly connected to the output shaft of the servo motor.

[0013] Furthermore, the outside of the retractable wheel and the fixed pulley are both transmission-connected with a suspension rope, a sliding hole adapted to the suspension rope is provided inside the fixed seat, and one end of the suspension rope away from the retractable wheel is fixedly connected with a suspension ring.

[0014] Furthermore, the lifting rope passes through the retractable wheel and is fixedly connected to the middle part thereof, and the two lifting rings are symmetrically distributed on the top of the fixed plate.

[0015] Furthermore, a limiting assembly is arranged on the outside of the fixing seat, and the limiting assembly includes two fixing blocks fixedly connected to the outside of the fixing seat, a limiting rod fixedly connected between the two fixing blocks, a limiting sleeve slidably connected to the outside of the limiting rod, and the limiting sleeve is fixedly connected to the fixing plate on the side away from the fixing seat.

[0016] The above solution of the utility model includes at least the following beneficial effects:

[0017] 1. The positioning and locking mechanism for the inverter test starts the reduction motor through the controller, and the reduction motor drives the transmission gear to rotate. The rotation and engagement of the transmission gear drives the driven gear, the rotating shaft and the clamping seat to rotate, which is convenient for flipping and adjusting the inverter body. The electric push rod is started to extend and retract through the controller, and the electric push rod extends and retracts to drive the fixture to move up and down, clamping and fixing inverter bodies of different sizes, which is convenient for multi-directional testing of the inverter body, improving the test accuracy of the inverter body and achieving the advantage of easy testing.

[0018] 2. The positioning and locking mechanism for the inverter test starts the servo motor through the controller. The servo motor drives the retractable wheel to rotate forward and backward. The retractable wheel rotates forward and backward to retract and release the lifting rope and the lifting ring, thereby adjusting the lifting and lowering of the fixed plate and the flip clamping mechanism. By setting the fixed block, the limit rod and the limit sleeve, the stability of the up and down movement of the fixed plate is improved, achieving the advantage of strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0020] Figure 1 It is a cross-sectional view of a positioning and locking mechanism for inverter testing provided in an embodiment of the utility model;

[0021] Figure 2 for Figure 1 The enlarged schematic diagram at A in the middle;

[0022] Figure 3 It is a structural stereogram of a clamping seat of a positioning and locking mechanism for inverter testing provided in an embodiment of the utility model.

[0023] Description of Figure Numbers:

[0024] 1. Base; 2. Fixed seat; 3. Fixed plate; 4. Mounting seat; 5. Flip clamping mechanism; 51. Reducer motor; 52. Transmission gear; 53. Driven gear; 54. Rotating shaft; 55. Clamping seat; 56. Electric push rod; 57. Clamp; 6. Lifting mechanism; 61. Servo motor; 62. Retractable wheel; 63. Lifting rope; 64. Fixed pulley; 65. Lifting ring; 7. Controller; 8. Limiting assembly; 81. Fixed block; 82. Limiting rod; 83. Limiting sleeve. DETAILED DESCRIPTION

[0025] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, and cannot be understood as limiting the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0030] Embodiment 1:

[0031] See also Figure 1-3 In this embodiment, a positioning and locking mechanism for testing a frequency converter comprises a base 1, two fixing seats 2 fixedly connected to the top of the base 1, a fixing plate 3 arranged on the top of the base 1, two mounting seats 4 fixedly connected to the top of the fixing plate 3, and a controller 7 fixedly installed on the front of the left fixing seat 2. The interiors of the two mounting seats 4 are both provided with a flip clamping mechanism 5 extending to the outside thereof. The flip clamping mechanism 5 comprises a reduction motor 51 fixedly installed on the outside of the right mounting seat 4 and a rotating shaft 54 ​​rotatably connected to the inside of the right mounting seat 4. A transmission gear 52 is fixedly connected to the output shaft of the reduction motor 51, and a driven gear 53 meshing with the transmission gear 52 is fixedly connected to one end of the rotating shaft 54 ​​close to the reduction motor 51, and a clamping seat 55 is fixedly connected to one end of the rotating shaft 54 ​​away from the driven gear 53. An electric push rod 56 extending to the inside thereof is fixedly installed on the top of the clamping seat 55, and a fixture 57 is fixedly connected to the output end of the electric push rod 56.

[0032] The reduction motor 51 is started by the controller 7, and the reduction motor 51 drives the transmission gear 52 to rotate. The rotation and meshing of the transmission gear 52 drives the driven gear 53, the rotating shaft 54 ​​and the clamping seat 55 to rotate, so as to facilitate the flipping adjustment of the inverter body. The electric push rod 56 is started to extend and retract by the controller 7, and the electric push rod 56 extends and retracts to drive the clamp 57 to move up and down, so as to clamp and fix inverter bodies of different sizes, so as to facilitate the multi-directional testing of the inverter body, thereby improving the testing accuracy of the inverter body and achieving the advantage of easy testing.

[0033] The two flipping and clamping mechanisms 5 are symmetrically distributed outside the two mounting seats 4 , and the outside of the reduction motor 51 is fixedly connected to a mounting frame fixedly connected to the outer wall of the fixing seat 4 .

[0034] Specifically, the rotating shaft 54 ​​is a solid cylinder, and a bearing adapted to the rotating shaft 54 ​​is fixedly installed inside the clamping seat 55. By providing the bearing, the stability of the rotating shaft 54 ​​during rotation is improved.

[0035] It should be noted that the electric push rod 56 is electrically connected to the controller 7, and an anti-skid rubber is fixedly connected to the bottom of the clamp 57. By providing the anti-skid rubber, the stability of the clamp 57 during clamping is improved.

[0036] In this embodiment, two lifting mechanisms 6 for lifting and lowering the fixed plate 3 are arranged on the top of the base 1. The lifting mechanism 6 includes a servo motor 61 fixedly mounted on the outside of the right fixing seat 2 and two fixed pulleys 64 rotatably mounted on the outside of the right fixing seat 2. The output shaft of the servo motor 61 is fixedly connected with a retracting wheel 62. The servo motor 61 is started by the controller 7 to drive the retracting wheel 62 to rotate forward and reversely. The retracting wheel 62 rotates forward and reversely to retract and release the hanging rope 63 and the hanging ring 65, thereby lifting and lowering the fixed plate 3 and the flip clamping mechanism 5.

[0037] The outside of the retractable wheel 62 and the fixed pulley 64 are both connected to the suspension rope 63 by transmission, and a sliding hole adapted to the suspension rope 63 is provided inside the fixed seat 2. The end of the suspension rope 63 away from the retractable wheel 62 is fixedly connected to a suspension ring 65.

[0038] Specifically, the suspension rope 63 passes through the retractable wheel 62 and is fixedly connected to the middle part thereof, and the two suspension rings 65 are symmetrically distributed on the top of the fixing plate 3 .

[0039] Embodiment 2:

[0040] See also Figure 1-3On the basis of the first embodiment, the embodiment includes a limit assembly 8 disposed outside the fixing seat 2, the limit assembly 8 includes two fixing blocks 81 fixedly connected to the outside of the fixing seat 2, a limit rod 82 fixedly connected between the two fixing blocks 81, a limit sleeve 83 slidably connected to the outside of the limit rod 82, and a side of the limit sleeve 83 away from the fixing seat 2 is fixedly connected to the fixing plate 3. By providing the fixing blocks 81, the limit rod 82 and the limit sleeve 83, the stability of the upward and downward movement of the fixing plate 3 is improved, and the advantage of strong practicality is achieved.

[0041] The limiting rod 82 is a solid cylinder, and the two limiting components 8 are symmetrically distributed on the opposite side of the two fixing seats 2.

[0042] By adopting the above technical solution, the stability of the upward and downward movement of the fixing plate 3 and the flip clamping mechanism 5 is improved, achieving the advantage of strong practicality.

[0043] The working principle of the above embodiment is:

[0044] When in use, the inverter body is placed between the two clamping seats 55, and the controller 7 is used to start the electric push rod 56 to extend and retract. The electric push rod 56 extends and retracts to drive the clamp 57 to move up and down, so as to clamp and fix inverter bodies of different sizes. Then, the controller 7 is used to start the reduction motor 51, and the reduction motor 51 drives the transmission gear 52 to rotate. The transmission gear 52 rotates and engages to drive the driven gear 53, the rotating shaft 54 ​​and the clamping seat 55 to rotate, so as to flip and adjust the inverter body. When the inverter body is lifted and lowered, the controller 7 is used to start the servo motor 61, and the servo motor 61 drives the retracting wheel 62 to rotate forward and reversely. The retracting wheel 62 rotates forward and reversely to retract and release the lifting rope 63 and the lifting ring 65, so as to lift and lower the fixed plate 3 and the flip clamping mechanism 5. By setting the fixed block 81, the limit rod 82 and the limit sleeve 83, the fixed plate 3 can be stably moved up and down.

[0045] The above solution of the utility model includes at least the following beneficial effects:

[0046] 1. The positioning and locking mechanism for the inverter test starts the reduction motor through the controller, and the reduction motor drives the transmission gear to rotate. The rotation and engagement of the transmission gear drives the driven gear, the rotating shaft and the clamping seat to rotate, which is convenient for flipping and adjusting the inverter body. The electric push rod is started to extend and retract through the controller, and the electric push rod extends and retracts to drive the fixture to move up and down, clamping and fixing inverter bodies of different sizes, which is convenient for multi-directional testing of the inverter body, improving the test accuracy of the inverter body and achieving the advantage of easy testing.

[0047] 2. The positioning and locking mechanism for the inverter test starts the servo motor through the controller. The servo motor drives the retractable wheel to rotate forward and backward. The retractable wheel rotates forward and backward to retract and release the lifting rope and the lifting ring, thereby adjusting the lifting and lowering of the fixed plate and the flip clamping mechanism. By setting the fixed block, the limit rod and the limit sleeve, the stability of the up and down movement of the fixed plate is improved, achieving the advantage of strong practicality.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0049] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A positioning and locking mechanism for inverter testing, characterized in that: It comprises a base (1), two fixing seats (2) fixedly connected to the top of the base (1), a fixing plate (3) arranged on the top of the base (1), two mounting seats (4) fixedly connected to the top of the fixing plate (3), and a controller (7) fixedly installed on the front of the fixing seat (2) on the left side, wherein the inside of the two mounting seats (4) is provided with a flip clamping mechanism (5) extending to the outside thereof; The flip clamping mechanism (5) comprises a reduction motor (51) fixedly mounted on the outside of the right side mounting seat (4) and a rotating shaft (54) rotatably connected to the inside of the right side mounting seat (4); a transmission gear (52) is fixedly connected to the output shaft of the reduction motor (51); an end of the rotating shaft (54) close to the reduction motor (51) is fixedly connected to a driven gear (53) meshing with the transmission gear (52); an end of the rotating shaft (54) away from the driven gear (53) is fixedly connected to a clamping seat (55); an electric push rod (56) extending into the inside of the clamping seat (55) is fixedly mounted on the top of the clamping seat (55); and a clamp (57) is fixedly connected to the output end of the electric push rod (56).

2. The positioning and locking mechanism for inverter testing according to claim 1, characterized in that: The two flip clamping mechanisms (5) are symmetrically distributed outside the two mounting seats (4), and the outside of the reduction motor (51) is fixedly connected to a mounting frame fixedly connected to the outer wall of the fixing seat.

3. The positioning and locking mechanism for inverter testing according to claim 1, characterized in that: The rotating shaft (54) is a solid cylinder, and a bearing matching the rotating shaft (54) is fixedly installed inside the clamping seat (55).

4. The positioning and locking mechanism for inverter testing according to claim 1, characterized in that: The electric push rod (56) is electrically connected to the controller (7), and the bottom of the clamp (57) is fixedly connected with anti-slip rubber.

5. The positioning and locking mechanism for inverter testing according to claim 1, characterized in that: The top of the base (1) is provided with two lifting mechanisms (6) for lifting and lowering the fixed plate (3), the lifting mechanisms (6) comprising a servo motor (61) fixedly mounted on the outside of the right fixed seat (2) and two fixed pulleys (64) rotatably mounted on the outside of the right fixed seat (2), and a retractable wheel (62) is fixedly connected to the output shaft of the servo motor (61).

6. The positioning and locking mechanism for inverter testing according to claim 5, characterized in that: The outsides of the retractable wheel (62) and the fixed pulley (64) are both connected to the lifting rope (63) in a transmission manner, and a sliding hole adapted to the lifting rope (63) is provided inside the fixed seat (2). The end of the lifting rope (63) away from the retractable wheel (62) is fixedly connected to a lifting ring (65).

7. The positioning and locking mechanism for inverter testing according to claim 6, characterized in that: The lifting rope (63) passes through the retracting wheel (62) and is fixedly connected to the middle part thereof. The two lifting rings (65) are symmetrically distributed on the top of the fixing plate (3).

8. The positioning and locking mechanism for inverter testing according to claim 1, characterized in that: A limiting assembly (8) is arranged outside the fixing seat (2), and the limiting assembly (8) comprises two fixing blocks (81) fixedly connected to the outside of the fixing seat (2), a limiting rod (82) fixedly connected between the two fixing blocks (81), a limiting sleeve (83) slidably connected to the outside of the limiting rod (82), and the limiting sleeve (83) is fixedly connected to the fixing plate (3) at a side away from the fixing seat (2).

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