Operating system for avoiding zero alignment abnormity of incremental encoder
By designing a detection box and zero-position alignment test components, and combining open-loop control and encoder feedback values, the problem of zero-position alignment abnormality of incremental encoders was solved, improving the applicability of the motor and the convenience of on-site operation.
Patent Information
- Application Number
- CN202520150260.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-01-22
AI Technical Summary
Existing incremental encoders are prone to stalling during zero alignment due to external mechanical limit positions, leading to zero point abnormalities. They also require external equipment support, which limits on-site operation.
An operating system was designed, including a detection box and a zero-position alignment test component. By controlling the rotation of the motor rotor in an open loop and combining the encoder feedback value, it determines whether the rotor is stalled, thus ensuring the accuracy of zero-position alignment.
This effectively avoids abnormal zero-position alignment of the incremental encoder, improving the applicability of the motor and the convenience of on-site operation.
Smart Images
Figure CN223856506U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The embodiment of the present application relates to the technical field of detection devices, in particular to an operation system for avoiding abnormality of incremental encoder zero position alignment. BACKGROUND
[0002] The incremental encoder is a kind of device for precisely measuring rotation angle or displacement, and is widely used in mechanical engineering, automation equipment and other fields. However, the zero position alignment of the incremental encoder closed-loop stepper motor is mainly realized by controlling the current of the stator winding, the stator generates magnetic force to attract the rotor to a corresponding electrical angle position, and the current encoder position is determined as the zero point of the rotor electrical angle in the closed-loop control by assuming that the motor rotor is stable after a period of time.
[0003] This operation method can only be applied in the process of encoder zero position alignment, and cannot appear the locked-rotor condition caused by the external mechanical limit position affecting the rotor. In the locked-rotor condition, the rotor electrical angle zero point obtained according to this open-loop operation method is abnormal, and if the error zero electrical angle is used for closed-loop control, the motor torque is abnormal, and the motor may even run out of control. In addition, various external control devices are needed when performing encoder zero position alignment, and these devices lack a good working platform, which is not conducive to on-site operation and limits the use. Therefore, the utility model provides an operation system for avoiding abnormality of incremental encoder zero position alignment. CONTENT OF THE UTILITY MODEL
[0004] In view of the above problems, the embodiment of the present application provides an operation system for avoiding abnormality of incremental encoder zero position alignment to solve the test limitation problem of the prior art operation system.
[0005] The embodiment of the present application provides an operation system for avoiding abnormality of incremental encoder zero position alignment, which comprises a detection box, a mounting plate movably connected in the inner cavity of the detection box, a locking assembly arranged on the mounting plate, and a zero position alignment test assembly arranged on the top surface of the detection box.
[0006] In some embodiments, the zero position alignment test assembly comprises a fixed plate, two fixed plates are fixedly connected on the top surface of the detection box in a symmetrical manner, a same lead screw is movably connected between the two fixed plates, one end of the lead screw penetrates through the fixed plate and is fixedly connected with a motor, the motor is fixedly connected with the fixed plate, a mechanical load is threadedly connected with the lead screw, a scale is fixedly installed on the top surface of the detection box on both sides of the mechanical load, a left hard limit plate and a right hard limit plate are arranged in a symmetrical manner between the two fixed plates, and the left hard limit plate and the right hard limit plate are fixedly connected with the top surface of the detection box.
[0007] In some embodiments, two fixing rods are symmetrically and fixedly connected between the two fixing plates, and both of the two fixing rods penetrate through and are movably connected with the mechanical load.
[0008] In some embodiments, a side plate is fixedly connected to the front and rear sidewalls of the mechanical load, and the side plate is in the shape of an isosceles triangle and is arranged on the upper side of the scale.
[0009] In some embodiments, a fixing bolt is movably connected to the left and right sides of the scale, and the fixing bolt is threadedly connected to the top surface of the detection box.
[0010] In some embodiments, the locking assembly comprises a horizontal plate, two horizontal plates are symmetrically and fixedly connected to the sidewalls of the mounting plate, a positioning rod is movably connected to each of the horizontal plates, a circular plate is fixedly connected to the end of each of the positioning rods facing each other, a spring is sleeved on each of the positioning rods, one end of the spring is fixedly connected to the circular plate, and the other end of the spring is fixedly connected to the horizontal plate, two positioning grooves are symmetrically formed in the inner cavity of the detection box, and the end of each of the positioning rods away from the circular plate is inserted into the positioning groove.
[0011] In some embodiments, the end of each of the positioning rods away from the circular plate is in the shape of a cone, and the positioning rod and the positioning groove are arranged in a matching manner.
[0012] In some embodiments, a sliding plate is fixedly connected to the front and rear sidewalls of the mounting plate, a sliding groove is formed in the inner cavity of the detection box, and the sliding plate is inserted into the sliding groove and movably connected with the sliding groove.
[0013] In some embodiments, the mounting plate is in the shape of L, a plurality of mounting holes are formed in the bottom surface of the mounting plate, and a wiring hole is formed in the vertical edge of the mounting plate.
[0014] In some embodiments, a handle is movably connected to the left sidewall of the mounting plate, and the handle is in the shape of a concave.
[0015] By the above scheme, the control device for detection is fixedly installed on the mounting plate, stable installation of the control device can be realized, when not in use, the mounting plate is placed in the inner cavity of the detection box, the control device can be placed and protected, and on-site use and carrying operation are facilitated; in the process of zero alignment of the incremental encoder closed loop stepping motor, the open loop control motor rotor rotates in an initial direction by a specific angle, and the encoder feedback value is combined to determine whether the rotor is currently stalled, in the case of stalling, the open loop control motor runs in the opposite direction by a specific angle, and the encoder feedback value is combined again to determine whether the rotor is currently stalled, if the rotor is not stalled when running in the initial direction, it can be determined that the encoder zero alignment is normal; if the rotor is stalled when running in the initial direction, but is not stalled when running in the opposite direction, it can be determined that the encoder zero alignment is normal; if the rotor is stalled when running in the initial direction, and is still stalled when running in the opposite direction, the encoder zero alignment is abnormal; through the processing of the above three cases, the problem that the current position randomness of the motor rotor causes stalling and thus causes zero recognition abnormality when the incremental encoder closed loop stepping motor is zero aligned can be solved, and the applicability of the incremental encoder closed loop stepping motor is greatly enhanced.
[0016] The above description is only a summary of the technical scheme of the embodiments of the present application, in order to more clearly understand the technical means of the embodiments of the present application, the content of the specification can be implemented, and in order to make the above and other purposes, features and advantages of the embodiments of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.
[0018] Figure 1 It is a front perspective structural schematic view of the present application;
[0019] Figure 2 It is a side perspective structural schematic view of the present application;
[0020] Figure 3 It is another side perspective structural schematic view of the present application;
[0021] Figure 4 It is an internal perspective structural schematic view of the present application;
[0022] Figure 5 It is a perspective structural schematic view of the zero alignment test assembly of the present application;
[0023] Figure 6 is a schematic view of a perspective structure of a lead screw of the present application;
[0024] Figure 7 is a schematic view of a perspective structure of a mounting plate of the present application;
[0025] Figure 8 is a schematic view of a perspective structure of the mounting plate of the present application from another angle;
[0026] Figure 9 is a schematic view of a perspective structure of a locking assembly of the present application;
[0027] Figure 10 is a schematic view of a perspective structure of a detection box of the present application.
[0028] BRIEF DESCRIPTION OF DRAWINGS
[0029] 1. detection box; 2. mounting plate; 3. locking assembly; 4. zero alignment test assembly; 5. fixed plate; 6. lead screw; 7. motor; 8. mechanical load; 9. scale; 10. left hard stop plate; 11. right hard stop plate; 12. fixed rod; 13. side plate; 14. fixed bolt; 15. cross plate; 16. positioning rod; 17. round plate; 18. spring; 19. positioning groove; 20. sliding plate; 21. sliding groove; 22. mounting hole; 23. wiring hole; 24. handle. DETAILED DESCRIPTION
[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.
[0031] The terms "comprise" and "have" and any variations thereof in the specification and claims of the present application and the drawings description are intended to cover but not exclude other content. The word "one" or "a" does not exclude the presence of multiple. Unless otherwise specified, the meaning of "multiple" is two or more (including two), and similarly, "multiple groups" means two or more groups (including two groups).
[0032] The positional words appearing in the following description are the directions shown in the drawings, and are not intended to limit the specific structure of the present application. For example, in the description of the present application, the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only intended to facilitate the description of the present application and simplify the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0033] In addition, the expressions of the indicating directions used to describe the operation and structure of the components of the embodiments, such as the height direction, are not absolute but relative, and although the indications are appropriate when the components are in the positions shown in the drawings, the directions should be interpreted differently when the positions are changed to correspond to the changes.
[0034] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, the "connection" or "connection" of mechanical structure can mean physical connection, such as fixed connection, detachable connection or integral connection. The "connection" or "connection" of the circuit structure can mean not only physical connection, but also electrical connection or signal connection, for example, it can be directly connected, that is, physically connected, or indirectly connected through at least one intermediate element, as long as the circuit is connected. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0035] In order to facilitate the understanding of the technical solutions of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.
[0036] As shown in Figures 1-10 The present application provides an operating system for avoiding incremental encoder zero alignment exception, which comprises a detection box 1, the inner cavity of the detection box 1 is movably connected with a mounting plate 2, a locking assembly 3 is arranged on the mounting plate 2, the locking assembly 3 comprises a horizontal plate 15, two horizontal plates 15 are fixedly connected on the side wall of the mounting plate 2 in front and back symmetry, a positioning rod 16 is movably connected on each horizontal plate 15, a circular plate 17 is fixedly connected on the end of the two positioning rods 16 facing each other, a spring 18 is sleeved on the positioning rod 16, one end of the spring 18 is fixedly connected with the circular plate 17, and the other end of the spring 18 is fixedly connected with the horizontal plate 15, two positioning grooves 19 are symmetrically arranged in the inner cavity of the detection box 1, and the end of the positioning rod 16 away from the circular plate 17 is inserted into the positioning groove 19;
[0037] In the technical scheme of the embodiment, the control device for detection is fixedly installed on the mounting plate 2, stable installation of the control device can be realized, and when not in use, the mounting plate 2 is placed in the inner cavity of the detection box 1, the control device can be placed and protected, and on-site use and carrying operation are facilitated;
[0038] Further, the positioning rod 16 is conically arranged at an end away from the circular plate 17, and the positioning rod 16 and the positioning groove 19 are arranged in a matching manner, so that the positioning rod 16 and the positioning groove 19 can be clamped and locked conveniently.
[0039] Further, the mounting plate 2 is fixedly connected with the sliding plates 20 on the front and rear side walls, the sliding grooves 21 are formed in the front and rear side walls of the inner cavity of the detection box 1, the sliding plates 20 are inserted into the sliding grooves 21 and movably connected with the sliding grooves 21, and the mounting plate 2 can stably move in the detection box 1.
[0040] Further, the mounting plate 2 is L-shaped in cross section, the mounting holes 22 are formed in the bottom surface of the mounting plate 2, and the wiring holes 23 are formed in the vertical edges of the mounting plate 2, so that the detection control device can be fixedly installed and the wiring operation can be facilitated.
[0041] Further, the handle 24 is movably connected to the left side wall of the mounting plate 2, and the handle 24 is concave, so that the mounting plate 2 can be pulled conveniently and used conveniently during detection.
[0042] The zero alignment test assembly 4 is arranged on the top surface of the detection box 1, and the zero alignment test assembly 4 comprises the fixed plates 5, the top surface of the detection box 1 is fixedly connected with two fixed plates 5, the same screw rod 6 is movably connected between the two fixed plates 5, one end of the screw rod 6 penetrates through the fixed plate 5 and is fixedly connected with the motor 7, the motor 7 is fixedly connected with the fixed plate 5, the mechanical load 8 is threadedly connected with the screw rod 6, the scale 9 is fixedly installed on the top surface of the detection box 1 and located on both sides of the mechanical load 8, the left hard limiting plate 10 and the right hard limiting plate 11 are arranged in a symmetrical manner between the two fixed plates 5, and the left hard limiting plate 10 and the right hard limiting plate 11 are fixedly connected with the top surface of the detection box 1.
[0043] In the technical scheme of the embodiment, in the process of aligning the zero position of the incremental encoder closed-loop stepping motor, the open-loop control motor 7 rotates the rotor in an initial direction by a specific angle, and in combination with the encoder feedback value, it is determined whether the rotor is currently stalled, in the case of stall, the open-loop control motor 7 runs in the opposite direction by a specific angle, and in combination with the encoder feedback value again, it is determined whether the rotor is currently stalled, if it does not stall when running in the initial direction, it can be determined that the encoder zero position alignment is normal at this time; if it stalls when running in the initial direction, but does not stall when running in the opposite direction, it can be determined that the encoder zero position alignment is normal at this time; if it stalls when running in the initial direction, and still stalls when running in the opposite direction, the encoder zero position alignment is abnormal at this time. Through the processing of the above three cases, the problem of stall caused by the randomness of the current position of the motor rotor when aligning the zero position of the incremental encoder closed-loop stepping motor, which leads to abnormal zero position recognition, can be solved, greatly enhancing the applicability of the incremental encoder closed-loop stepping motor.
[0044] Further, two fixed plates 5 are symmetrically and fixedly connected between the front and back, two fixed rods 12 are connected, two fixed rods 12 are all through the mechanical load 8 and are movably connected with the mechanical load 8, which can effectively improve the stability of the movement of the mechanical load 8 and improve the detection accuracy.
[0045] Further, the front and back side walls of the mechanical load 8 are both fixedly connected with side plates 13, the side plates 13 are isosceles triangle in cross section and are arranged on the upper side of the scale 9, which can accurately read the scale on the scale 9.
[0046] Further, the fixed bolts 14 are movably connected with the scale 9 near the left and right sides, and the fixed bolts 14 are threadedly connected with the top surface of the detection box 1, which can realize the fixed installation operation of the scale 9.
[0047] Those skilled in the art can understand that although some embodiments herein include certain features included in other embodiments rather than other features, the combination of features of different embodiments means to be within the scope of the application and form different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.
[0048] The above-described embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for some technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. An operating system for avoiding incremental encoder zero position alignment anomalies, comprising: Including detection box (1), the inside cavity of detection box (1) is movably connected with mounting plate (2), locking assembly (3) is arranged on mounting plate (2), zero alignment test assembly (4) is arranged on the top surface of detection box (1).
2. An operating system for avoiding incremental encoder zero position alignment anomalies according to claim 1, wherein, The zero alignment test assembly (4) includes a fixed plate (5), two fixed plates (5) are symmetrically and fixedly connected to the top surface of the detection box (1), the same lead screw (6) is movably connected between the two fixed plates (5), one end of the lead screw (6) penetrates the fixed plate (5) and is fixedly connected with the motor (7), the motor (7) is fixedly connected with the fixed plate (5), the lead screw (6) is threadedly connected with the mechanical load (8), the top surface of the detection box (1) is fixedly provided with a scale (9) on both sides of the mechanical load (8), the left hard limit plate (10) and the right hard limit plate (11) are symmetrically arranged between the two fixed plates (5), and the left hard limit plate (10) and the right hard limit plate (11) are fixedly connected with the top surface of the detection box (1).
3. An operating system for avoiding incremental encoder zero position alignment anomalies as recited in claim 2, wherein, Two fixed rods (12) are symmetrically and fixedly connected between the two fixed plates (5), and the two fixed rods (12) penetrate the mechanical load (8) and are movably connected with the mechanical load (8).
4. An operating system for avoiding incremental encoder zero position alignment anomalies according to claim 3, wherein, The front and rear sidewalls of the mechanical load (8) are fixedly connected with side plates (13), the cross section of the side plate (13) is isosceles triangle and is arranged on the upper side of the scale (9).
5. An operating system for avoiding incremental encoder zero position alignment anomalies according to claim 4, wherein, The fixed bolt (14) is movably connected to the left and right sides of the scale (9), and the fixed bolt (14) is threadedly connected with the top surface of the detection box (1).
6. An operating system for avoiding incremental encoder zero position alignment anomalies according to claim 1, wherein, The locking assembly (3) includes a horizontal plate (15), two horizontal plates (15) are symmetrically and fixedly connected to the sidewall of the mounting plate (2), the positioning rod (16) is movably connected to the horizontal plate (15), the circular plate (17) is fixedly connected to the end of the positioning rod (16) facing each other, the spring (18) is sleeved on the positioning rod (16), one end of the spring (18) is fixedly connected with the circular plate (17), the other end of the spring (18) is fixedly connected with the horizontal plate (15), and two positioning grooves (19) are symmetrically formed in the inner cavity of the detection box (1).
7. An operating system for avoiding incremental encoder zero position alignment anomalies according to claim 6, wherein, The end of the positioning rod (16) away from the circular plate (17) is conical, and the positioning rod (16) and the positioning groove (19) are matched.
8. The operating system for avoiding incremental encoder zero-position alignment anomaly of claim 1, wherein, The front and rear sidewalls of the mounting plate (2) are fixedly connected with the sliding plate (20), the front and rear sidewalls of the inner cavity of the detection box (1) are provided with the sliding groove (21), and the sliding plate (20) is inserted into the sliding groove (21) and movably connected with the sliding groove (21).
9. The operating system for avoiding incremental encoder zero-position alignment anomaly of claim 1, wherein, The cross section of the mounting plate (2) is L-shaped, a plurality of mounting holes (22) are formed in the bottom surface of the mounting plate (2), and a wiring hole (23) is formed in the vertical edge of the mounting plate (2).
10. The operating system for avoiding incremental encoder zero-position alignment anomaly of claim 1, wherein, The handle (24) is movably connected to the left sidewall of the mounting plate (2), and the handle (24) is concave.