Electronic actuator calibration tool

Abstract

The utility model discloses an electronic actuator calibration tool, which relates to the technical field of electronic actuator calibration equipment and comprises a calibration base and a calibration adjusting block, a support step is arranged at the bottom of the calibration base and protrudes out of the front wall surface of the calibration base, and an accommodating stepped hole with a top opening is concavely arranged in the calibration base. A lateral opening communicated with the outside is formed in the front face of the containing stepped hole, a back notch communicated with the containing stepped hole is formed in the back face of the calibration base, the calibration block is arranged on a step of the containing stepped hole in an inserted and assembled mode from the top face or the front face, and an adaptive adjusting hole used for angle calibration is formed in the calibration adjusting block. And the adaptive adjusting hole penetrates through the calibration adjusting block along the height direction. According to the electronic actuator calibration tool provided by the utility model, the test can be carried out only by assembling and disassembling the calibration adjusting block and enabling the actuator movable connecting rod to be matched with the adaptive adjusting hole, and the operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of electronic actuator calibration equipment technology, and in particular to an electronic actuator calibration fixture. Background Technology

[0002] Electronic actuators (such as electronic exhaust gas valve actuators) primarily receive signals from the vehicle's electronic control unit (ECU) and, through internal drive circuits and transmission mechanisms, precisely control the opening of the turbocharger's turbine-side exhaust gas bypass valve. Under different engine operating conditions, such as idling, low-speed driving, high-speed driving, and rapid acceleration, the ECU calculates and sends corresponding control signals to the electronic actuator based on feedback from various sensors, including intake pressure, engine speed, and throttle opening. The electronic actuator then adjusts the opening degree of the exhaust gas bypass valve according to these signals, controlling the ratio of exhaust gas flow through the turbine and the bypass valve. This effectively controls the turbocharger's speed, achieving different boost requirements and ensuring the engine receives appropriate intake pressure and flow under various operating conditions, thereby improving engine performance and efficiency.

[0003] With increasingly stringent vehicle emission standards and the trends towards electrification and intelligentization in automobiles, multi-angle electronic actuators, capable of simultaneously accommodating the installation and use of different types of angle sensors, are gradually replacing single-structure, single-angle actuators. Currently, automatic angle calibration equipment is used for multi-angle calibration of electronic actuators. However, this equipment has a long production cycle, high cost, and is not easily movable, making it inconvenient to use during the R&D phase of new electronic actuators (products to be calibrated). Therefore, it is necessary to propose an electronic actuator calibration fixture to solve or at least alleviate some of the aforementioned shortcomings. Utility Model Content

[0004] The main objective of this invention is to provide an electronic actuator calibration fixture, which aims to solve or at least partially solve the aforementioned technical problems.

[0005] To achieve the above objectives, this utility model provides an electronic actuator calibration fixture, including a calibration base and a calibration adjustment block. The bottom of the calibration base is provided with a support step, which protrudes from the front wall of the calibration base. The calibration base is recessed with a top-opening accommodating stepped hole. The front of the accommodating stepped hole has a lateral opening communicating with the outside. The back of the calibration base is provided with a back notch communicating with the accommodating stepped hole. The calibration block is assembled into the step of the accommodating stepped hole from the top or front. The calibration adjustment block is provided with an adapter adjustment hole for angle calibration, which extends through the calibration adjustment block along the height direction.

[0006] Furthermore, a center hole is arranged on the center line of the calibration adjustment block, and the center hole penetrates the calibration adjustment block along the height direction. The adapter adjustment hole is located on the outside of the center hole.

[0007] Furthermore, the adapter adjustment hole includes a first adapter hole and at least one second adapter hole, the first adapter hole and the second adapter hole being arranged at intervals and on the same arc.

[0008] Furthermore, the second adapter hole is formed by a combination of multiple adapter test holes that are interlocked along the arc direction, and the diameter of the adapter test hole is the same as that of the first adapter hole.

[0009] Furthermore, the deflection angle of the first adapter hole relative to the mid-section in a counterclockwise rotation is α. The number of adapter test holes is four. The deflection angle of the first adapter test hole relative to the mid-section in a clockwise rotation is β. The deflection angle of the second adapter test hole relative to the mid-section in a clockwise rotation is γ. The deflection angle of the third adapter test hole relative to the mid-section in a clockwise rotation is ε. The deflection angle of the fourth adapter test hole relative to the mid-section in a clockwise rotation is ζ. Wherein, α∈[50°,60°], β∈[227°,232°], α∈[201°,206°], α∈[167°,172°], α∈[132°,137°].

[0010] Furthermore, the back notch is an elongated slot extending along the height direction.

[0011] Furthermore, the top surface of the calibration adjustment block is engraved with front markings.

[0012] Furthermore, the front marking is the chamfer between the top and side surfaces of the calibration adjustment block.

[0013] Furthermore, the accommodating stepped hole is a four-step stepped hole, and the supporting step is a two-step stepped boss.

[0014] Furthermore, at least two sets of adapter adjustment holes are arranged radially at intervals along the central hole.

[0015] Compared with the prior art, the electronic actuator calibration fixture provided by this utility model has the following beneficial effects:

[0016] The electronic actuator calibration fixture provided by this utility model includes a calibration base and a calibration adjustment block. The bottom of the calibration base has a supporting step that protrudes from the front wall of the calibration base. The calibration base has a recessed accommodating stepped hole with a top opening. The front of the accommodating stepped hole has a lateral opening communicating with the outside. The back of the calibration base has a back notch communicating with the accommodating stepped hole. The calibration block is insertably mounted on the step of the accommodating stepped hole from the top or front. The calibration adjustment block has an adapter adjustment hole for angle calibration, which extends through the calibration adjustment block along its height. By providing the supporting step and the accommodating stepped hole, with the top and front of the accommodating stepped hole being open, it is convenient to install and place the electronic actuator to be calibrated. The electronic actuator to be calibrated is accommodated in the accommodating stepped hole with its bottom protruding from the front wall and supported by the supporting step. The calibration fixture, mounted on a step, constrains (limits) the electronic actuator to be calibrated via a calibration base. Constraints are achieved by inserting a calibration block onto the step containing the stepped hole and ensuring it fits against the three hole walls. The actuator's movable link engages with the adapter adjustment hole, allowing the target voltage to be obtained at the target calibration angle corresponding to the adapter adjustment hole. The calibration block and calibration base are detachably connected; the calibration base has a back notch communicating with the stepped hole, allowing the actuator to be removed from the back after obtaining the target voltage. This electronic actuator calibration fixture provides a convenient solution for obtaining the target voltage for programming or verifying the voltage; simply attach and detach the calibration adjustment block and engage the actuator's movable link with the adapter adjustment hole. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is one of the schematic diagrams showing the usage state of the electronic actuator calibration fixture in one embodiment of this utility model;

[0019] Figure 2 This is the second schematic diagram of the usage state structure of the electronic actuator calibration fixture in one embodiment of this utility model;

[0020] Figure 3 This is a schematic diagram of the calibration base of the electronic actuator calibration fixture in one embodiment of the present invention;

[0021] Figure 4This is a schematic diagram of the calibration adjustment block of the electronic actuator calibration fixture in one embodiment of the present invention.

[0022] Legend:

[0023] 10. Calibration base; 11. Support step; 12. Step hole for receiving; 13. Back notch; 20. Calibration adjustment block; 21. Adapter adjustment hole; 211. First adapter hole; 212. Second adapter hole; 2121. Adapter test hole; 22. Center hole.

[0024] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0028] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0029] Currently, multi-angle electronic actuators require precise angle calibration before they can have their own angle control programs. Developing a new electronic actuator calibration fixture to provide effective support in the R&D and testing stages of new electronic actuators (products to be calibrated) in a convenient, easy-to-operate, and low-cost manner is a technical problem that urgently needs to be solved.

[0030] Please refer to the appendix. Figure 1 , Figure 2 , Figure 3 and Figure 4 This utility model provides an electronic actuator calibration fixture, including a calibration base 10 and a calibration adjustment block 20. The bottom of the calibration base 10 is provided with a support step 11, which protrudes from the front wall of the calibration base 10. The calibration base 10 is recessed with a top-opening accommodating stepped hole 12. The front of the accommodating stepped hole 12 has a lateral opening communicating with the outside. The back of the calibration base 10 is provided with a back notch 13 communicating with the accommodating stepped hole 12. The calibration block is inserted and assembled onto the step of the accommodating stepped hole 12 from the top or front. The calibration adjustment block 20 is provided with an adapter adjustment hole 21 for angle calibration, which extends through the calibration adjustment block 20 along the height direction.

[0031] The electronic actuator calibration fixture provided by this utility model includes a calibration base 10 and a calibration adjustment block 20. A support step 11 is arranged at the bottom of the calibration base 10, protruding from the front wall of the calibration base 10. The calibration base 10 has a recessed accommodating stepped hole 12 with a top opening. The front of the accommodating stepped hole 12 has a lateral opening communicating with the outside. A back notch 13 communicating with the accommodating stepped hole 12 is arranged on the back of the calibration base 10. The calibration block is positioned from the top... The calibration adjustment block 20 is mounted on the step of the receiving stepped hole 12, and the top and front surfaces of the calibration adjustment block 20 are arranged with adapter adjustment holes 21 for angle calibration. The adapter adjustment holes 21 are arranged through the calibration adjustment block 20 along the height direction. By setting the support step 11 and the receiving stepped hole 12, the top and front surfaces of the receiving stepped hole 12 are respectively arranged in an open form to facilitate the installation and placement of the electronic actuator to be calibrated, so that the electronic actuator to be calibrated is housed in the receiving stepped hole 12 and its bottom protrudes out of the front. The wall support rests on the support step 11, and the calibration base 10 is used to constrain (limit) the electronic actuator to be calibrated. The calibration block is inserted and fitted onto the step of the stepped hole 12, and its fit against the three hole walls of the stepped hole 12 achieves constraint. The actuator's movable connecting rod engages with the adapter adjustment hole 21, allowing the target voltage to be obtained at the target calibration angle corresponding to the adapter adjustment hole 21. The calibration block and calibration base 10 are detachably connected. The back of the calibration base 10 has a back notch 13 communicating with the stepped hole 12, allowing the actuator to be removed from the back after obtaining the target voltage. The electronic actuator calibration fixture provided by this invention allows for convenient operation when obtaining the target voltage for programming or verifying the voltage; simply by installing and removing the calibration adjustment block 20 and engaging the actuator's movable connecting rod with the adapter adjustment hole 21.

[0032] An electronic actuator calibration fixture includes a calibration base 10 and a calibration adjustment block 20. The bottom of the calibration base 10 has a support step 11 protruding from the front wall of the calibration base 10. The calibration base 10 has a recessed accommodating stepped hole 12 with a top opening. The front of the accommodating stepped hole 12 has a lateral opening communicating with the outside. The back of the calibration base 10 has a back notch 13 communicating with the accommodating stepped hole 12.

[0033] Furthermore, a center hole 22 is arranged on the center line of the calibration adjustment block 20, and the center hole 22 extends through the calibration adjustment block 20 along the height direction. The adapter adjustment hole 21 is located outside the center hole 22. In this invention, the arrangement of the center hole 22 facilitates the processing of the adapter adjustment hole 21. After the calibration adjustment block 20 is engaged with the calibration base 10, the center hole 22 is concentric with the connecting rod shaft of the electronic actuator to be calibrated, thereby confirming whether the electronic actuator to be calibrated is placed in place.

[0034] Even better, the calibration adjustment block 20 is also provided with a pick-up and put-down hole, which can be used in conjunction with the gripping robotic arm to realize the automatic picking and putting of the calibration adjustment block 20.

[0035] Optionally, the stepped hole 12 is formed by combining multiple square holes along the height direction, and the calibration adjustment block 20 is a square plate. More preferably, the calibration adjustment block 20 is a long strip plate, and chamfers are arranged at all four corners of the calibration adjustment block 20.

[0036] Furthermore, the adapter adjustment hole 21 includes a first adapter hole 211 and at least one second adapter hole 212, the first adapter hole 211 and the second adapter hole 212 being arranged at intervals and on the same arc. Understandably, the first adapter hole 211 can be used to calibrate and test one of the angles, and the second adapter hole 212 can be used to calibrate and test another angle.

[0037] Furthermore, in order to meet the testing requirements of the electronic actuator (product to be calibrated), the second adapter hole 212 is formed by a combination of multiple adapter test holes 2121 that are interlocked along the arc direction, and the diameter of the adapter test hole 2121 is the same as the diameter of the first adapter hole 211.

[0038] Further, the counterclockwise rotation angle of the first adapter hole 211 relative to the mid-section is α. There are four adapter test holes 2121. The clockwise rotation angle of the first adapter test hole 2121 relative to the mid-section is β, the clockwise rotation angle of the second adapter test hole 2121 relative to the mid-section is γ, the clockwise rotation angle of the third adapter test hole 2121 relative to the mid-section is ε, and the clockwise rotation angle of the fourth adapter test hole 2121 relative to the mid-section is ζ. Where α∈[50°, 60°], β∈[227°, 232°], α∈[201°, 206°], ε∈[167°, 172°], and ζ∈[132°, 137°]. Please refer to [reference again]. Figure 4 In one specific embodiment of this utility model, the counterclockwise deflection angle of the first adapter hole 211 relative to the mid-section is 57.8°±1°; the clockwise deflection angle of the first adapter test hole 2121 relative to the mid-section is 230.7°±1°; the clockwise deflection angle of the second adapter test hole 2121 relative to the mid-section is 203.1°±1°; the clockwise deflection angle of the third adapter test hole 2121 relative to the mid-section is 169.6°±1°; and the clockwise deflection angle of the fourth adapter test hole 2121 relative to the mid-section is 134.1°±1°. Optionally, the calibration zero point is located on the mid-section of the back notch 13.

[0039] Furthermore, the back notch 13 is an elongated slot extending along the height direction. Optionally, the back notch 13 can also be used to accommodate and avoid the protruding portion of the back of the electronic actuator to be calibrated.

[0040] Furthermore, the top surface of the calibration adjustment block 20 is engraved with a front marking.

[0041] Furthermore, the front marking is the chamfer between the top and side surfaces of the calibration adjustment block 20. Alternatively, the front marking can also be other markings engraved on the top surface of the calibration adjustment block 20.

[0042] Furthermore, the accommodating stepped hole is a four-step stepped hole, and the supporting step is a two-step stepped boss.

[0043] Furthermore, in order to calibrate and test different models of electronic actuators, at least two sets of adapter adjustment holes 21 are arranged radially at intervals along the central hole 22.

[0044] This utility model provides a specific electronic actuator calibration fixture, comprising a calibration base 10 and a calibration adjustment block 20. The internal dimensions of the calibration base 10 (the dimensions accommodating the stepped hole 12) are equivalent to the external dimensions of the electronic actuator to be calibrated. The arrangement angle of the adaptation adjustment hole 21 of the calibration adjustment block 20 is equivalent to the critical calibration angle of the electronic actuator to be calibrated. The outer dimensions of the calibration adjustment block 20 are equivalent to the dimensions of the uppermost hole of the calibration base 10. This fixture has a simple structure and advantages such as portability, ease of operation, and low cost. For use, see [reference needed]. Figure 1 and Figure 2 The back of the electronic actuator (product to be calibrated) is placed against the back of the calibration base 10 and inserted into the accommodating stepped hole 12 of the calibration base 10. Due to the tolerance ensuring the fit size, the electronic actuator (product to be calibrated) does not wobble inside the calibration base 10 and is basically fitted. The chamfered side of the calibration adjustment block 20 faces upward, and the back of the calibration adjustment block 20 is fitted against the back of the calibration base 10. The positioning pin (actuator movable link) of the electronic actuator (product to be calibrated) is inserted into the matching adjustment hole 21 of the calibration adjustment block 20.

[0045] The calibration process is as follows: The calibration adjustment block 20 has five calibrated angles. After the electronic actuator to be calibrated (the product to be calibrated) is engaged with the calibration base 10 and the calibration adjustment block 20, the voltage at the first angle is obtained. At this time, the actuator's movable connecting rod engages with the first adapter hole 211. The calibration adjustment block 20 is then removed, and the actuator's movable connecting rod is rotated. After the electronic actuator to be calibrated (the product to be calibrated) is engaged with the calibration base 10 and the calibration adjustment block 20, and the actuator's movable connecting rod engages with the first adapter test hole 2121, the voltage at the second angle is obtained. This process is repeated until the voltages at the third, fourth, and fifth angles are obtained. Linear fitting is performed using the first, second, third, fourth, and fifth angles as the abscissa and the voltages at the first, second, third, fourth, and fifth angles as the ordinate to obtain the burned-in linear voltage value.

[0046] The linearity detection process involves the calibration base 10 and the calibration adjustment block 20 working together to determine whether the voltage corresponding to the actuator's moving link rotating to a certain angle is within the error range of the burned voltage.

[0047] The above embodiments are merely illustrative of several implementation methods of this application, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this 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 application should be determined by the appended claims.

Claims

1. An electronic actuator calibration fixture, characterized in that, The calibration base includes a calibration base and a calibration adjustment block. The bottom of the calibration base has a supporting step that protrudes from the front wall of the calibration base. The calibration base has a recessed accommodating stepped hole with a top opening. The front of the accommodating stepped hole has a lateral opening communicating with the outside. The back of the calibration base has a back notch communicating with the accommodating stepped hole. The calibration block is mounted on the step of the receiving stepped hole from the top or front. The calibration adjustment block is provided with an adapter adjustment hole for angle calibration, and the adapter adjustment hole is arranged through the calibration adjustment block along the height direction.

2. The electronic actuator calibration fixture according to claim 1, characterized in that, A central hole is arranged on the center line of the calibration adjustment block, and the central hole extends through the calibration adjustment block along the height direction. The adapter adjustment hole is located on the outside of the central hole.

3. The electronic actuator calibration fixture according to claim 1, characterized in that, The adapter adjustment hole includes a first adapter hole and at least one second adapter hole, wherein the first adapter hole and the second adapter hole are arranged at intervals and are located on the same arc.

4. The electronic actuator calibration fixture according to claim 3, characterized in that, The second adapter hole is formed by a combination of multiple adapter test holes that are spliced ​​together along the arc direction, and the diameter of the adapter test hole is the same as the diameter of the first adapter hole.

5. The electronic actuator calibration fixture according to claim 4, characterized in that, The deflection angle of the first adapter hole relative to the mid-section is α, which is a counterclockwise rotation. The number of adapter test holes is four. The first adapter test hole is rotated clockwise by an angle β relative to the mid-section, the second adapter test hole is rotated clockwise by an angle γ relative to the mid-section, the third adapter test hole is rotated clockwise by an angle ε relative to the mid-section, and the fourth adapter test hole is rotated clockwise by an angle ζ relative to the mid-section. Where α∈[50°,60°], β∈[227°,232°], α∈[201°,206°], α∈[167°,172°], α∈[132°,137°].

6. The electronic actuator calibration fixture according to any one of claims 1 to 5, characterized in that, The back notch is a long, narrow groove extending along the height direction.

7. The electronic actuator calibration fixture according to any one of claims 1 to 5, characterized in that, The top surface of the calibration adjustment block is engraved with a front marking.

8. The electronic actuator calibration fixture according to claim 7, characterized in that, The front marking is the chamfer between the top and side surfaces of the calibration adjustment block.

9. The electronic actuator calibration fixture according to any one of claims 1 to 5, characterized in that, The accommodating stepped hole is a four-step stepped hole, and the supporting step is a two-step stepped boss.

10. The electronic actuator calibration fixture according to claim 2, characterized in that, At least two sets of the adapter adjustment holes are arranged at radial intervals along the central hole.

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