Encoder calibration test device

Abstract

The utility model provides a kind of encoder calibration testing device, and encoder calibration testing device includes: base, support frame, motor, shaft coupling and control box;Support frame, motor, shaft coupling and control box are located above base, support frame and control box are fixedly connected with base, the shell of motor and the shell of shaft coupling are fixedly connected with support frame;Shaft coupling includes: first outer shaft and second outer shaft, first outer shaft is coaxially fixedly connected with the output shaft of motor, and is used to synchronously transmit the rotation of the output shaft of motor to second outer shaft, and second outer shaft is used to and rotary encoder electric connection;Controller is fixedly arranged in control box, controller is electrically connected with motor, display screen is also fixedly arranged on base, and display screen is electrically connected with controller.The utility model can quickly complete the calibration test work of rotary encoder, save time and effort.

Description

Technical Field

[0001] This utility model relates to the field of encoder testing technology, and in particular to an encoder calibration and testing device. Background Technology

[0002] A rotary encoder is a device that is mounted along a fixed axis and whose output shaft can rotate along that fixed axis.

[0003] In production and daily life, rotary encoders are commonly used to statistically measure the number of rotations and angles of a motor. Magnetic encoders based on the magnetic effect output angle by determining the relative position of the chip to the magnet. Therefore, after leaving the factory or reassembling, due to factors such as the inherent misalignment of the AMR magnetoresistive element in the core component and amplitude and phase errors between the Sin / Cos signals, the initial accuracy of the magnetic encoder is relatively low (high INL value). Furthermore, during the assembly process, unavoidable positional deviations between the chip and the magnet occur, causing nonlinearity in the encoder's accuracy and ultimately affecting the precision of the measured values.

[0004] Although existing rotary encoders have built-in calibration testing software, the calibration test requires rotating the encoder's output shaft to trigger the calibration. However, currently, the output shaft of the rotary encoder is usually manually rotated before the encoder leaves the factory. This operation is time-consuming and labor-intensive, and often the output shaft is not rotated sufficiently, resulting in the calibration effect not meeting expectations and affecting the performance of the rotary encoder in practical applications. Utility Model Content

[0005] To solve the above problems, the encoder calibration and testing device provided by this utility model, by setting up a support frame, motor, coupling and controller, can quickly complete the calibration and testing of rotary encoders, saving time and effort.

[0006] This utility model provides an encoder calibration and testing device, which includes: a base, a support frame, a motor, a coupling, and a control box;

[0007] The support frame, the motor, the coupling, and the control box are all located above the base. The support frame and the control box are both fixedly connected to the base. The housing of the motor and the housing of the coupling are both fixedly connected to the support frame. The coupling includes a first external shaft and a second external shaft. The first external shaft is coaxially fixedly connected to the output shaft of the motor and is used to synchronously transmit the rotation of the output shaft of the motor to the second external shaft. The second external shaft is used to electrically connect to a rotary encoder. A controller is fixedly installed inside the control box. The controller is electrically connected to the motor. A display screen is also fixedly installed on the base. The display screen is electrically connected to the controller.

[0008] Optionally, the support frame includes: a first bracket; The bottom end of the first bracket is fixedly connected to the base. The motor and the coupling are located on opposite sides of the first bracket. The motor housing is fixedly connected to the first bracket. The output shaft of the motor passes through the first bracket and is coaxially fixedly connected to the first external shaft.

[0009] Optionally, the support frame further includes: a second bracket; The second bracket is located on the side of the first bracket away from the motor and is fixedly connected to the first bracket. The second external shaft is rotatably connected to the second bracket. The second bracket is used to mount the rotary encoder.

[0010] Optionally, the second external shaft is coaxial with the first external shaft.

[0011] Optionally, the control box includes: a box body and a control panel; The housing is fixedly connected to the base, the control panel is connected to the housing and together with the housing and the base, they form a closed space, and the controller is located within the closed space and is electrically connected to the control panel.

[0012] Optionally, one end of the control panel is pivotally connected to the housing.

[0013] Optionally, the display screen is located within the closed space, and an observation port is provided on the housing, through which the display screen is exposed outside the housing.

[0014] Optionally, a slide rail is fixedly installed inside the housing, and the display screen is slidably connected to the slide rail and inserted into the closed space through the slide rail.

[0015] Optionally, the control panel is located at the front end of the housing, and the motor and the coupling are arranged on the base in a left-right direction.

[0016] Optionally, the encoder calibration test apparatus further includes: a power supply module; The power module is fixedly connected to the base, and the power module is electrically connected to the controller, control panel and display screen respectively.

[0017] The encoder calibration and testing device provided in this embodiment of the utility model, by setting up a support frame, a motor, a coupling and a controller, enables the motor to drive the output shaft of the rotary encoder under test to rotate through the coupling under the control of the controller, thereby triggering the rotary encoder to complete the calibration test operation. This saves time and effort, while ensuring the quality of the rotary encoder after leaving the factory, and improving its accuracy and performance in various application scenarios. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic perspective view of an encoder calibration and testing apparatus according to an embodiment of this application; Figure 2 This is a schematic structural diagram of an embodiment of the present application after removing the front end portion of the control box; Figure 3 This is a schematic top view of an encoder calibration test apparatus according to an embodiment of this application; Figure 4 This is a schematic left view of an encoder calibration test apparatus according to an embodiment of this application.

[0020] Figure label: 1. Base; 2. Support frame; 21. First bracket; 22. Second bracket; 221. Connecting plate; 222. C-type bracket; 3. Motor; 4. Coupling; 5. Control box; 51. Box body; 511. Observation port; 52. Control panel; 61. Controller; 62. Display screen; 63. Power module; 7. Rotary encoder. Detailed Implementation

[0021] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0023] Spatial relation terms such as "below," "under," "below," "below," "above," and "above" are used here to describe the relationship between one element or feature shown in the figure and other elements or features. Similarly, "directly above" can be used here to describe an element or feature shown in the figure that coincides in a vertical straight line direction, which may be partial or complete, depending on the actual situation or the content of the illustration. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below," "below," or "below" of other elements will be oriented "above" other elements or features. Therefore, the exemplary terms "below" and "below" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0024] It should be noted that when an element is referred to as "fixedly connected" to another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is referred to as being "directly on" another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0025] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0026] This utility model provides an encoder calibration and testing device, see [link]. Figure 1 and Figure 2 The encoder calibration test device includes: base 1, support frame 2, motor 3, coupling 4 and control box 5.

[0027] The support frame 2, motor 3, coupling 4, and control box 5 are all located above the base 1. The support frame 2 and control box 5 are both fixedly connected to the base 1. The housings of the motor 3 and coupling 4 are both fixedly connected to the support frame 2.

[0028] The coupling 4 includes a first external shaft and a second external shaft. The first external shaft is coaxially and fixedly connected to the output shaft of the motor 3, and is used to synchronously transmit the rotation of the output shaft of the motor 3 to the second external shaft. The second external shaft is used for electrical connection with the rotary encoder 7. A controller 61 is fixedly installed inside the control box 5. The controller 61 is electrically connected to the motor 3. The base 1 is also fixedly installed with a display screen 61 support 2, a motor 3, a coupling 4, and a controller 61. Under the control of the controller 61, the motor 3 drives the output shaft of the rotary encoder 7 under test to rotate through the coupling 4, thereby triggering the rotary encoder 7 to complete the calibration test. This saves time and effort, while ensuring the quality of the rotary encoder 7 after leaving the factory, and improving its accuracy and performance in various application scenarios.

[0029] In a further optional embodiment of this embodiment, combined with Figure 1 , Figure 3 and Figure 4 The support frame 2 includes a first bracket 21. The bottom end of the first bracket 21 is fixedly connected to the base 1 by screws. The motor 3 and the coupling 4 are located on opposite sides of the first bracket 21. The housing of the motor 3 is detachably fixedly connected to the first bracket 21 by a flange. The output shaft of the motor 3 passes through the first bracket 21 and is coaxially fixedly connected to the first external shaft.

[0030] In this embodiment, the motor 3 and the coupling 4 are arranged on the base 1 in a left-right direction. The motor 3 is located on the right side of the coupling 4.

[0031] In a further optional embodiment of this example, the support frame 2 further includes a second bracket 22. The second bracket 22 is located on the side of the first bracket 21 opposite to the motor 3 and is fixedly connected to the first bracket 21. A second external shaft is rotatably connected to the second bracket 22. The second bracket 22 is used to mount the rotary encoder 7. The second bracket 22 is provided with a connecting component, and the second bracket is detachably connected to the housing of the rotary encoder 7 via the connecting component. The connecting component may be a snap-fit ​​assembly, bolt, or mounting hole, etc., provided on the second bracket.

[0032] In this embodiment, the second bracket 22 is located to the left of the first bracket 21. Specifically, the second bracket 22 includes a docking plate 221 and a C-shaped bracket 222. The C-shaped bracket 222 includes a vertical portion perpendicular to the upper surface of the base 1 and two horizontal portions parallel to the upper surface of the base 1.

[0033] Two horizontal sections are located at the top and bottom of the vertical section, respectively. The left ends of both horizontal sections are fixedly connected to the vertical section, and the right ends of both horizontal sections are fixedly connected to the docking plate 221. Thus, the docking plate 221 and the C-shaped bracket 222 form a rectangular second bracket 22. The connecting component is a threaded hole opened on the vertical section, so that the second bracket 22 can be detachably connected to the rotary encoder 7 by screws passing through the threaded hole.

[0034] The coupling 4 is located inside the second bracket 22. The mating plate 221 is detachably connected to the first bracket 21 via a flange. The second bracket 22 not only facilitates the fixing of the rotary encoder 7, but also provides a certain degree of protection for the coupling 4. The coupling 4 is used to control the angular velocity of the output shaft of the synchronous motor 3 and the output shaft of the encoder.

[0035] Both the docking plate 221 and the first bracket 21 have circular through holes, which are coaxial. The output shaft of the motor 3 is fixedly connected to the first external shaft coaxially through the two circular through holes. The left end of the second bracket 22 has a docking hole. The output of the rotary encoder 7 is fixedly connected to the second external shaft coaxially through the docking hole. The second external shaft is coaxial with the first external shaft. By setting the output shafts of the motor 3, coupling 4, and the rotary encoder 7 under test concentrically, the stability of the encoder calibration test device is ensured.

[0036] In a further optional embodiment of this example, the control box 5 includes a box body 51 and a control panel 52. The box body 51 is fixedly connected to the base 1, and the control panel 52 is connected to the box body 51, forming a closed space together with the box body 51 and the base 1. The controller 61 is located within the closed space and is electrically connected to the control panel 52.

[0037] The control panel 52 has multiple function buttons (not shown in the figure) for controlling the working status of the motor 3 to achieve human-machine interaction. These include a switch button for controlling the on / off state of the motor 3, a speed adjustment button for controlling the output shaft speed of the motor 3, and a direction control button for controlling the direction of the output shaft of the motor 3. By setting the speed adjustment button, the speed of the motor 3 can be precisely controlled, thereby enabling precise control of the rotary encoder 7 to follow the specified speed and rotate a specified number of revolutions and angles.

[0038] In this embodiment, the control panel 52 is located at the opening on the front side of the housing 51. The top of the control panel 52 is pivotally connected to the housing 51 via a hinge, allowing engineers to operate and maintain the components inside the control box 5. The top of the control panel 52 is tilted backward relative to its bottom, making the installation of the control panel 52 more ergonomic and allowing operators to operate it in a more comfortable posture.

[0039] It should be noted that the control panel 52 can control the state of the motor 3 through various buttons, which can be achieved through existing circuit structures and / or software programs. This embodiment does not limit this.

[0040] It is understood that the display screen 62 can be directly fixed to the base 1 or mounted on other supporting structures such as the control box 5. In this embodiment, the display screen 62 is located within a closed space, that is, inside the control box 5.

[0041] Specifically, the enclosure 51 has an observation port 511. Slide rails are fixedly installed on the left and right sides of the observation port 511 inside the enclosure 51, and a support block is fixedly installed at the bottom of the observation port 511 inside the enclosure 51. The display screen 62 slides along the slide rails in the vertical direction and is inserted into the closed space through the slide rails. The support block abuts against the display screen 62. The display screen 62 is exposed outside the enclosure 51 through the observation port 511 and is electrically connected to the controller 61 via a cable.

[0042] The display screen 62 acquires and displays the current number of rotations, real-time angle, and other equipment information of the motor 3 through the controller 61. Thus, the display screen 62 serves as a data visualization window for the encoder calibration test device, allowing operators to monitor the status and progress of the encoder calibration test process. In this embodiment, the display screen 62 is an LCD data display screen 62.

[0043] In a further optional embodiment of this invention, the encoder calibration test device further includes a power supply module 63. The power supply module 63 is located inside the housing 51 and fixedly connected to the base 1. The power supply module 63 is electrically connected to the controller 61, the control panel 52, and the display screen 62. Support feet are fixedly installed at the four corners of the bottom of the base plate.

[0044] It should be noted that the controller 61 is electrically connected to the motor 3 via a cable and is used to control the operation of the motor 3 and to perform data communication. The specific method by which the controller 61 controls the motor 3 can be implemented using existing technology, and this utility model does not protect against this; therefore, this embodiment will not elaborate on it.

[0045] After the operator writes the necessary program into the controller 61, simply clicking the corresponding function button on the control panel 52 will cause the motor 3 to drive the output shaft of the rotary encoder 7 to rotate synchronously. In this way, the encoder calibration and testing device can automatically complete the calibration and testing of the rotary encoder 7. During the calibration and testing process, the rotary encoder 7 is also electrically connected to external devices to provide power, debug the program, and transmit data. This will not be elaborated further in this embodiment.

[0046] The encoder calibration and testing device provided in this embodiment has a simple, compact, and stable structure, making it easier to move and change its operating location. The data visualization window facilitates monitoring and adjusting encoder calibration and testing parameters for operators. The control panel 52 allows for adjustment of the motor 3's speed, enabling the device to calibrate and test various types of rotary encoders 7, thus expanding its application scenarios.

[0047] In the description of this specification, the references to terms such as "some embodiments," "other embodiments," "ideal embodiments," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example that are included in at least one embodiment or example of this application. In this specification, the illustrative descriptions of the above terms do not necessarily refer to the same embodiments or examples.

[0048] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An encoder calibration and testing device, characterized in that, The encoder calibration and testing device includes: a base (1), a support frame (2), a motor (3), a coupling (4), and a control box (5); The support frame (2), the motor (3), the coupling (4) and the control box (5) are all located above the base (1). The support frame (2) and the control box (5) are fixedly connected to the base (1). The housing of the motor (3) and the housing of the coupling (4) are fixedly connected to the support frame (2). The coupling (4) includes: a first external shaft and a second external shaft. The first external shaft is coaxially fixedly connected to the output shaft of the motor (3) and is used to synchronously transmit the rotation of the output shaft of the motor (3) to the second external shaft. The second external shaft is used to electrically connect with the rotary encoder (7). A controller (61) is fixedly installed inside the control box (5). The controller (61) is electrically connected to the motor (3). A display screen (62) is also fixedly installed on the base (1). The display screen (62) is electrically connected to the controller (61).

2. The encoder calibration and testing apparatus according to claim 1, characterized in that, The support frame (2) includes: a first bracket (21); The bottom end of the first bracket (21) is fixedly connected to the base (1). The motor (3) and the coupling (4) are located on opposite sides of the first bracket (21). The housing of the motor (3) is fixedly connected to the first bracket (21). The output shaft of the motor (3) passes through the first bracket (21) and is coaxially fixedly connected to the first external shaft.

3. The encoder calibration and testing apparatus according to claim 2, characterized in that, The support frame (2) further includes: a second bracket (22); The second bracket (22) is located on the side of the first bracket (21) away from the motor (3) and is fixedly connected to the first bracket (21). The second external shaft is rotatably connected to the second bracket (22). The second bracket (22) is used to mount the rotary encoder (7).

4. The encoder calibration and testing apparatus according to claim 1, characterized in that, The second external shaft is coaxial with the first external shaft.

5. The encoder calibration and testing apparatus according to claim 1, characterized in that, The control box (5) includes: a box body (51) and a control panel (52); The housing (51) is fixedly connected to the base (1), the control panel (52) is connected to the housing (51), and together with the housing (51) and the base (1) form a closed space, and the controller (61) is located in the closed space and is electrically connected to the control panel (52).

6. The encoder calibration and testing apparatus according to claim 5, characterized in that, One end of the control panel (52) is pivotally connected to the housing (51).

7. The encoder calibration and testing apparatus according to claim 5, characterized in that, The display screen (62) is located within the closed space, and an observation port (511) is provided on the housing (51). The display screen (62) is exposed outside the housing (51) through the observation port (511).

8. The encoder calibration and testing apparatus according to claim 7, characterized in that, The housing (51) is fixedly provided with a slide rail, and the display screen (62) is slidably connected to the slide rail and inserted into the closed space through the slide rail.

9. The encoder calibration and testing apparatus according to claim 5, characterized in that, The control panel (52) is located at the front end of the housing (51), and the motor (3) and the coupling (4) are arranged on the base (1) in the left-right direction.

10. The encoder calibration and testing apparatus according to any one of claims 1 to 9, characterized in that, The encoder calibration test device further includes: a power supply module (63); The power module (63) is fixedly connected to the base (1), and the power module (63) is electrically connected to the controller (61), the control panel (52) and the display screen (62) respectively.

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