Automatic correction device of encoder

Abstract

The utility model discloses an automatic correcting device for an encoder. The automatic correcting device comprises a rack, a correcting jig, a pressing mechanism and a correcting mechanism, a correction platform is horizontally arranged at the top of the rack; the correction jig is vertically arranged on the correction platform, and the lower end of the correction jig vertically penetrates through the correction platform; a coupling cavity is formed in the correction jig, an upper limiting groove communicated with the coupling cavity is formed in the upper surface of the correction jig, and a correction equipment mounting groove communicated with the coupling cavity is formed in the lower surface of the correction jig; the correction mechanism is arranged in the correction equipment mounting groove, and the upper end of the correction mechanism vertically extends upwards into the coupling cavity; a to-be-corrected motor connected with a to-be-corrected encoder is placed in the upper limiting groove, and a main shaft of the to-be-corrected motor is in transmission connection with the upper end of the correction mechanism through the coupling cavity. The pressing mechanism is arranged on the correction platform; according to the utility model, the encoder of the to-be-corrected motor can be accurately, efficiently and automatically corrected, manual operation is not needed, and the correction convenience and correction quality of the encoder are improved.

Description

Technical Field

[0001] The utility model relates to the field of motors, in particular to an automatic correction device for an encoder. Background Art

[0002] In the motor manufacturing sector, the localization of encoders is particularly noteworthy. As a key component in motor control systems, encoders are responsible for accurately measuring parameters such as the motor's rotational position, speed, and acceleration. Their performance directly impacts the motor's overall operating accuracy and stability.

[0003] However, while domestic encoders offer significant advantages in terms of cost and lead time, they still lag behind imported encoders in terms of accuracy. High-precision encoders typically offer higher resolution, lower error rates, and stronger anti-interference capabilities, better meeting the demands of high-precision motor control systems. Therefore, after motor assembly, encoder calibration is essential to compensate for the accuracy shortcomings of domestic encoders and ensure stable operation according to expected performance specifications.

[0004] Traditionally, encoder calibration often relies on manual adjustments to the encoder's installation position or parameter settings. However, this method is not only inefficient but also difficult to ensure accurate and consistent calibration. Furthermore, with the expansion of motor manufacturing and the continuous improvement of precision, the demand for automated and intelligent encoder calibration is becoming increasingly urgent.

[0005] Therefore, it is particularly important to develop an efficient and accurate encoder automatic correction equipment. Utility Model Content

[0006] The main purpose of the present invention is to provide an automatic calibration device for an encoder, thereby solving all or one of the above problems existing in the prior art.

[0007] In order to solve the above technical problems, a technical solution adopted by the present invention is to provide an automatic calibration device for an encoder, comprising:

[0008] Frame, correction jig, clamping mechanism and correction mechanism;

[0009] A correction platform is horizontally provided on the top of the frame;

[0010] The correction jig is vertically arranged on the correction platform, and the lower end of the correction jig vertically passes through the correction platform; a coupling chamber is provided inside the correction jig, an upper limit groove communicating with the coupling chamber is provided on the upper surface of the correction jig, and a correction device mounting groove communicating with the coupling chamber is provided on the lower surface of the correction jig;

[0011] The correction mechanism is embedded in the correction device installation slot, and the upper end of the correction mechanism extends vertically upward into the coupling chamber; the upper limit slot is used to place the motor to be corrected connected to the encoder to be corrected, and the coupling chamber is used to drive the main shaft of the motor to be corrected to the upper end of the correction mechanism;

[0012] The clamping mechanism is arranged on the correction platform at a position on one side of the correction jig, and the clamping mechanism includes a horizontal slide rail mechanism and a vertical cylinder mechanism slidably connected to the horizontal slide rail mechanism; the horizontal slide rail mechanism is horizontally arranged on the correction platform, and the vertical cylinder mechanism is arranged corresponding to the upper limit slot.

[0013] As an improved solution, the correction mechanism includes: an active motor and a high-precision encoder connected to the active motor;

[0014] The active motor is vertically embedded in the correction device installation slot, and the main shaft of the active motor extends vertically upward into the coupling chamber;

[0015] The high-precision encoder is located in the installation slot of the correction device, and the transmission sleeve is arranged on the active motor below the coupling chamber.

[0016] As an improved solution, a coupling is embedded in the coupling chamber, the upper end of the coupling is an upper transmission interface, and the lower end of the coupling is a lower transmission interface;

[0017] The main shaft transmission of the active motor is arranged in the lower transmission interface;

[0018] The upper transmission interface is used to connect to the main shaft of the motor to be calibrated.

[0019] As an improved solution, the horizontal slide rail mechanism includes: a first slide rail, a first slider slidably arranged on the first slide rail, and a support member installed on the upper end of the first slider;

[0020] The first slide rail is horizontally mounted on the upper surface of the calibration platform and corresponds to the position of the calibration fixture through a slide rail mounting seat, with the end of the first slide rail facing the calibration fixture;

[0021] The upper end of the support member is higher than the motor to be calibrated, and a distance is provided between the support member and the top of the calibration jig.

[0022] As an improved solution, the vertical cylinder mechanism includes: a pressing cylinder and a cylinder mounting frame;

[0023] The cylinder mounting bracket is arranged on the top of the support member and corresponds to the position of the upper limit slot;

[0024] The clamping cylinder is vertically arranged on the cylinder mounting bracket, and the piston end of the clamping cylinder is vertically arranged downward, and the piston end of the clamping cylinder is arranged corresponding to the center position of the upper limit slot; the piston end of the clamping cylinder clamps the motor to be corrected in the upper limit slot by moving vertically downward.

[0025] As an improved solution, when the motor to be corrected is located in the upper limit slot, the main shaft of the motor to be corrected, the coupling, the main shaft of the active motor and the piston rod of the pressing cylinder are coaxially arranged.

[0026] As an improved solution, there are two first slide rails, and the two first slide rails are arranged side by side;

[0027] Each of the first slide rails is provided with the first sliding block;

[0028] The bottom of the support member is connected to the first sliding blocks of the two first sliding rails.

[0029] As an improved solution, two first sliding blocks are provided on the first sliding rail.

[0030] As an improved solution, the automatic calibration device for the encoder further comprises: a calibration device;

[0031] The calibration device is equipped with encoder calibration software, and the calibration device is controlled and connected to the encoder to be calibrated via wireless transmission technology;

[0032] The wireless transmission technology includes: Bluetooth transmission, wireless network transmission and infrared transmission.

[0033] As an improved solution, support bases are respectively provided at the four corners of the bottom of the frame, and the bottom of the frame is composed of three crossbeams.

[0034] The beneficial effects of the utility model are:

[0035] The utility model discloses an automatic correction device for an encoder, which can accurately limit the installation of the motor to be corrected by using a correction fixture, thereby improving the convenience of correction and alignment; the motor to be corrected is pressed by a clamping cylinder to prevent the motor stator from rotating, thereby improving the accuracy of correction; the high-precision encoder active motor is used to drive the motor to be corrected to rotate synchronously at a low speed, and the encoder of the motor to be corrected that rotates at a low speed is corrected based on the encoder correction software, thereby realizing automatic correction of the motor encoder, with high correction efficiency, strong accuracy and consistency, making up for the defects of the existing technology and having high application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic diagram of the three-dimensional structure of an automatic calibration device for an encoder in an embodiment of the present utility model;

[0037] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0038] Figure 3 yes Figure 1 Schematic diagram of the enlarged structure at B in the middle;

[0039] Figure 4 yes Figure 1 Schematic diagram of the enlarged structure at C in the middle;

[0040] Figure 5 This is a side structural diagram of an automatic calibration device for an encoder according to an embodiment of the present utility model;

[0041] Figure 6 yes Figure 5 Schematic diagram of the enlarged structure at D in the middle;

[0042] The markings of the components in the accompanying drawings are as follows:

[0043] 1. Frame; 2. Calibration platform; 3. Calibration fixture; 4. Coupling chamber; 5. Motor to be calibrated; 6. Encoder to be calibrated; 7. Calibration equipment mounting slot; 8. Active motor; 9. High-precision encoder; 10. Coupling; 11. Upper transmission interface; 12. Lower transmission interface; 13. First slide rail; 14. First slider; 15. Support member; 16. Slide rail mounting seat; 17. Clamping cylinder; 18. Cylinder mounting bracket; 19. Support base. DETAILED DESCRIPTION

[0044] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0045] 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", "radial", "circumferential" and the like to 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0047] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0048] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0049] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0050] See also Figures 1 to 6 , the embodiments of the present utility model include:

[0051] An automatic calibration device for an encoder, comprising: a frame 1, a calibration fixture 3, a pressing mechanism and a calibration mechanism;

[0052] A correction platform 2 is horizontally provided on the top of the frame 1; the correction jig 3 is vertically embedded in the correction platform 2, and the lower end of the correction jig 3 vertically passes through the correction platform 2; a coupling chamber 4 is provided inside the correction jig 3, an upper limit groove communicating with the coupling chamber 4 is provided on the upper surface of the correction jig 3, and a correction device mounting groove 7 communicating with the coupling chamber 4 is provided on the lower surface of the correction jig 3; in order to improve stability, support bases 19 are provided at the four corners of the bottom of the frame 1, and the bottom of the frame 1 is composed of three crossbeams;

[0053] The correction mechanism is embedded in the correction device mounting groove 7, and the upper end of the correction mechanism extends vertically upward into the coupling chamber 4; the upper limit groove is used to place the motor to be corrected 5 with the encoder 6 to be corrected connected to the top, and the motor to be corrected 5 is set vertically downward, and the coupling chamber 4 is used to connect the main shaft of the motor to be corrected 5 with the upper end of the correction mechanism; wherein, the upper limit groove and the correction device mounting groove 7 both have a certain depth, but when the motor to be corrected 5 and the correction mechanism are respectively embedded therein, a part of the structure will still be exposed outside the groove;

[0054] The clamping mechanism is arranged on the correction platform 2 at a position on one side of the correction jig 3, and the clamping mechanism includes a horizontal slide rail mechanism and a vertical cylinder mechanism slidably connected to the horizontal slide rail mechanism; the horizontal slide rail mechanism is horizontally arranged on the correction platform 2, and the vertical cylinder mechanism is arranged corresponding to the upper limit slot.

[0055] Furthermore, the correction mechanism includes: an active motor 8 and a high-precision encoder 9 connected to the active motor 8; the active motor 8 is vertically embedded in the correction device mounting slot 7, and the outer shell of the active motor 8 is fixedly connected to the outer wall of the correction fixture 3 or the inner wall of the correction device mounting slot 7 by fixing bolts or other fixing parts; the main shaft of the active motor 8 extends vertically upward into the coupling chamber 4; the high-precision encoder 9 is located in the correction device mounting slot 7, and the transmission sleeve is arranged on the active motor 8 below the coupling chamber 4; in this embodiment, the high-precision encoder 9 is directly connected to the active motor 8, and it rotates along with the active motor 8.

[0056] Furthermore, a vertically arranged coupling 10 is embedded in the coupling chamber 4, the upper end of the coupling 10 is an upper transmission interface 11, and the lower end of the coupling 10 is a lower transmission interface 12; the main shaft transmission of the active motor 8 is arranged in the lower transmission interface 12; the upper transmission interface 11 is connected to the main shaft of the motor 5 to be corrected.

[0057] Furthermore, the horizontal slide rail mechanism includes: a first slide rail 13, a first slider 14 slidingly set on the first slide rail 13, and a support member 15 installed on the upper end of the first slider 14; the first slide rail 13 is horizontally installed on the upper surface of the correction platform 2 and corresponds to the position of the correction jig 3 through the slide rail mounting seat 16, and the left end of the first slide rail 13 faces the correction jig 3; the upper end of the support member 15 is set higher than the motor to be corrected 5, and there is a distance between the support member 15 and the top of the correction jig 3; wherein the support member 15 adopts an L-shaped vertical support plate, and the L-shaped vertical support plate is provided with reinforcing ribs; there are two first slide rails 13, and the two first slide rails 13 are arranged side by side; each first slide rail 13 is provided with two first sliders 14; the bottom of the support member 15 is connected to the first sliders 14 of the two first slide rails 13.

[0058] Furthermore, the vertical cylinder mechanism includes: a clamping cylinder 17 and a cylinder mounting bracket 18; the cylinder mounting bracket 18 is arranged at the top of the support member 15 and corresponds to the position of the upper limit slot, and the cylinder mounting bracket 18 also adopts an L-shaped mounting bracket; the clamping cylinder 17 is vertically penetrated on the cylinder mounting bracket 18, and the piston end of the clamping cylinder 17 is movably arranged vertically downward, and the piston end of the clamping cylinder 17 is arranged corresponding to the center position of the upper limit slot, thereby ensuring that when the motor encoder is calibrated, the piston end of the clamping cylinder 17 can move vertically downward to clamp the motor 5 to be calibrated in the upper limit slot.

[0059] Furthermore, in order to ensure the accuracy of the correction, when the motor to be corrected 5 is located in the upper limit slot, the main shaft of the motor to be corrected 5, the coupling 10, the main shaft of the active motor 8 and the piston rod of the clamping cylinder 17 are coaxially arranged.

[0060] Furthermore, the automatic correction device of the encoder also includes: a correction device; the correction device is equipped with encoder correction software, and the correction device is controlled and connected to the encoder to be corrected 6 through wireless transmission technology; the wireless transmission technology includes: Bluetooth transmission, wireless network transmission and infrared transmission; in this application, the structural part of the entire correction device is the innovative part, and the correction device can use a conventional correction device equipped with encoder correction software in this field, so it will not be repeated.

[0061] Furthermore, the working principle of this device is as follows:

[0062] Assemble the encoder 6 to be calibrated on the motor as the motor to be calibrated; place the motor to be calibrated vertically downward in the upper limit slot of the calibration fixture 3;

[0063] Based on the action of the first slide rail 13 and the first slider 14, the position of the pressing cylinder 17 is slidably adjusted so that its piston rod is aligned to a position above the motor 5 to be calibrated;

[0064] The piston rod of the clamping cylinder 17 is controlled to extend downward to clamp the motor to be calibrated, so that the main shaft of the motor to be calibrated extends into the upper transmission interface 11 of the coupling 10, and then is connected to the main shaft of the active motor 8 in the installation slot 7 of the calibration device. At the same time, the clamping effect can prevent the stator (motor body) from rotating with the motor when the motor rotates synchronously;

[0065] Afterwards, the active motor 8 is controlled to operate, and then the motor to be corrected 5 is driven to rotate synchronously at a low speed with the high-precision encoder 9 through the coupling 10; in this process, the conventional correction method of the encoder in this field is adopted, and the accuracy of the encoder on the motor to be corrected 5 is corrected based on software.

[0066] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure made using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, is also included in the patent protection scope of the present invention.

Claims

1. An automatic calibration device for an encoder, characterized in that: include: A frame (1), a correction fixture (3), a pressing mechanism and a correction mechanism; A calibration platform (2) is horizontally provided on the top of the frame (1); The correction jig (3) is vertically arranged on the correction platform (2), and the lower end of the correction jig (3) vertically passes through the correction platform (2); a coupling chamber (4) is provided inside the correction jig (3), an upper limit groove communicating with the coupling chamber (4) is provided on the upper surface of the correction jig (3), and a correction device installation groove (7) communicating with the coupling chamber (4) is provided on the lower surface of the correction jig (3); The correction mechanism is embedded in the correction device installation slot (7), and the upper end of the correction mechanism extends vertically upward into the coupling chamber (4); the upper limit slot is used to place the motor to be corrected (5) connected to the encoder to be corrected (6), and the coupling chamber (4) is used to connect the main shaft of the motor to be corrected (5) to the upper end of the correction mechanism; The clamping mechanism is arranged on the correction platform (2) at a position on one side of the correction jig (3), and the clamping mechanism includes a horizontal slide rail mechanism and a vertical cylinder mechanism slidably connected to the horizontal slide rail mechanism; the horizontal slide rail mechanism is horizontally arranged on the correction platform (2), and the vertical cylinder mechanism is arranged corresponding to the upper limit slot.

2. The automatic calibration device for an encoder according to claim 1, characterized in that: The correction mechanism comprises: an active motor (8) and a high-precision encoder (9) connected to the active motor (8); The active motor (8) is vertically embedded in the correction device installation slot (7), and the main shaft of the active motor (8) extends vertically upward into the coupling chamber (4); The high-precision encoder (9) is located in the calibration device installation slot (7), and the transmission sleeve is arranged on the active motor (8) below the coupling chamber (4).

3. The automatic calibration device for an encoder according to claim 2, characterized in that: A coupling (10) is embedded in the coupling chamber (4), the upper end of the coupling (10) is an upper transmission interface (11), and the lower end of the coupling (10) is a lower transmission interface (12); The main shaft transmission of the active motor (8) is arranged in the lower transmission interface (12); The upper transmission interface (11) is used to connect to the main shaft of the motor to be calibrated (5).

4. The automatic calibration device for an encoder according to claim 3, characterized in that: The horizontal slide rail mechanism comprises: a first slide rail (13), a first slider (14) slidably arranged on the first slide rail (13), and a support member (15) installed on the upper end of the first slider (14); The first slide rail (13) is horizontally mounted on the upper surface of the correction platform (2) and corresponds to the position of the correction jig (3) through a slide rail mounting seat (16), and the end of the first slide rail (13) faces the correction jig (3); The upper end of the support member (15) is arranged higher than the motor to be calibrated (5), and a distance is provided between the support member (15) and the top of the calibration jig (3).

5. The automatic calibration device for an encoder according to claim 4, characterized in that: The vertical cylinder mechanism comprises: a pressing cylinder (17) and a cylinder mounting frame (18); The cylinder mounting frame (18) is arranged on the top of the support member (15) and corresponds to the position of the upper limit slot; The clamping cylinder (17) is vertically arranged on the cylinder mounting frame (18), and the piston end of the clamping cylinder (17) is vertically arranged downward, and the piston end of the clamping cylinder (17) is arranged corresponding to the center position of the upper limit slot; the piston end of the clamping cylinder (17) clamps the motor to be calibrated (5) in the upper limit slot by moving vertically downward.

6. The automatic calibration device for an encoder according to claim 5, characterized in that: When the motor to be corrected (5) is located in the upper limit slot, the main shaft of the motor to be corrected (5), the coupling (10), the main shaft of the active motor (8), and the piston rod of the pressing cylinder (17) are coaxially arranged.

7. The automatic calibration device for an encoder according to claim 4, characterized in that: There are two first slide rails (13), and the two first slide rails (13) are arranged side by side; Each of the first slide rails (13) is provided with a first sliding block (14); The bottom of the support member (15) is connected to the first sliding blocks (14) of the two first sliding rails (13).

8. The automatic calibration device for an encoder according to claim 4, characterized in that: Two first sliding blocks (14) are provided on the first slide rail (13).

9. The automatic calibration device for an encoder according to claim 1, characterized in that: Support bases (19) are respectively provided at the four corners of the bottom of the frame (1).

10. The automatic calibration device for an encoder according to claim 1, characterized in that: The bottom of the frame (1) is composed of three cross beams.

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