Data acquisition device for testing electric actuating mechanism and rapid inspection equipment

Abstract

The invention discloses a data acquisition device for testing an electric actuating mechanism. The data acquisition device comprises a quick mounting bracket and a self-resetting sensor, a magnetic material is nested on the upper end surface of the quick-mounting bracket, and a fixed guide groove is axially formed in the quick-mounting bracket; the self-resetting sensor comprises a displacement sensor, a measuring head, a rod piece and a resetting elastic piece; the displacement sensor is fixedly arranged on the quick mounting bracket; the bottom end of the rod piece extends into the quick mounting bracket through the fixed guide groove; the measuring head is arranged at the top of the rod; a reset elastic piece is arranged between the bottom end of the rod piece and the quick-mounting bracket; when testing is carried out, the magnetic material on the upper end face of the fast-assembling support is attracted to the bottom of a flange of the tested electric actuating mechanism through magnetism, and the reset elastic piece is in a compressed state. By adopting the device, quick assembly and disassembly in the testing process are effectively realized, the labor intensity is reduced, and the inspection efficiency and the result accuracy are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electric actuators, in particular to a rapid testing device for electric actuator testing. BACKGROUND

[0002] Electric actuators are a kind of mechatronic devices commonly used in current industrial systems. The accuracy of their own performance parameters plays a decisive role in on-site implementation and application. Therefore, it is necessary to test electric actuators in advance to determine whether they meet the standards for shipment and use. Furthermore, how to achieve rapid testing of electric actuators and ensure the accuracy of the test results has become a problem that manufacturers and even users of electric actuators need to pay attention to and solve.

[0003] Most electric actuator manufacturers currently use calipers or other measuring tools to measure or observe the mechanical indicators of the output end to observe and record the position data of the output end of the electric actuator, and then manually calculate the relevant performance parameters of the product. The entire testing process not only relies heavily on manual operation, but also consumes a lot of time and effort. Moreover, the testing method is simple and basic, and it is difficult to guarantee the accuracy of the test results, which poses a great risk to the actual use of the product. SUMMARY

[0004] The purpose of the present application is to solve the problems in the prior art and provide a rapid testing device for electric actuator testing, which focuses on rapid assembly and disassembly during testing, reduces labor intensity, and improves testing efficiency and result accuracy.

[0005] To achieve the above purpose, the technical solution provided by the present application is as follows: A data acquisition device for electric actuator testing, comprising a quick-mounting bracket and a self-resetting sensor. The upper end of the quick-mounting bracket is embedded with a magnetic material. The quick-mounting bracket is provided with a fixed guide groove in the axial direction. The self-resetting sensor comprises a displacement sensor, a measuring head, a rod, and a reset elastic member. The displacement sensor is fixedly arranged on the quick-mounting bracket. The bottom end of the rod extends into the quick-mounting bracket through the fixed guide groove and can freely slide along the fixed guide groove. The measuring head is arranged at the top end of the rod. The reset elastic member is arranged between the bottom end of the rod and the quick-mounting bracket. When testing, the magnetic material on the upper end of the quick-mounting bracket is magnetically attracted to the bottom of the flange of the electric actuator being tested, the reset elastic member is in a compressed state, and the elastic force acts on the measuring head through the rod to make the upper end surface of the measuring head contact and press the lower end surface of the output end of the electric actuator being tested.

[0006] The application realizes quick mounting and dismounting of the whole device and the measured electric actuator by magnetic force, and realizes that the measuring head of the displacement sensor moves with the electric actuator during the whole test process by the elastic force of the reset elastic member, so that the position data collected is real-time and accurate, the degree of manual participation is reduced, the process error is reduced, and the test precision is improved.

[0007] Further, the upper end surface of the quick mounting bracket is processed with mounting hole grooves, the magnetic material is nested in the mounting hole grooves, and an interference fit is adopted to ensure that the magnetic material will not fall out of the mounting hole grooves during use.

[0008] Further, the magnetic material adopts a magnetic steel; the mounting hole grooves are multiple and uniformly distributed on the upper end surface of the quick mounting bracket; the multiple magnetic steels are nested and assembled in the corresponding mounting hole grooves, and the magnetic pole directions are consistent.

[0009] Further, the bottom of the mounting hole groove is provided with an exhaust through hole, and the diameter of the exhaust through hole is smaller than the inner diameter of the mounting hole groove. The exhaust through hole is used to exhaust air in the mounting hole groove during assembly.

[0010] Further, the displacement sensor is fixed on the quick mounting bracket by a fastener, such as a screw; and the measuring head is detachably fixed and installed at the top end of the rod by a thread.

[0011] Further, the height of the measuring head satisfies the following conditions: the bottom of the flange of the measured electric actuator and the upper end surface of the quick mounting bracket are placed in the same plane, and when the reset elastic member is in a free elongation state, the position of the upper end surface of the measuring head is always higher than the lower end surface of the output end of the electric actuator within the test stroke of the measured electric actuator. In this way, when the test is performed, when the upper end surface of the measuring head contacts the lower end surface of the output end of the electric actuator, the reset elastic member is in a compressed state, and the measuring head is always pushed close to the measured electric actuator by the rod, thereby ensuring that the upper end surface of the measuring head and the lower end surface of the output end of the measured electric actuator are always in contact and pressed tightly, and the test precision is improved.

[0012] The detachable installation of the measuring head by a thread facilitates the selection of measuring heads of different heights according to different test requirements of different products.

[0013] The application also provides a quick test device for testing an electric actuator, which adopts the above-mentioned data acquisition device, and further comprises: An information processing system is connected to the self-resetting sensor through a cable, receives the position data collected by the self-resetting sensor, calculates and outputs the performance parameters of the electric actuator.

[0014] The performance parameters include the accuracy, speed, stroke time error, etc. of the electric actuator.

[0015] The information processing system comprises a man-machine interface and a data analysis unit; the man-machine interface can be operated in a touch screen mode, the display interface provides control buttons and displays the test items and test results in real time; the data analysis unit can adopt PLC and comprises a control module and a detection module; the control module communicates with the measured electric actuator and the self-resetting sensor, outputs the detection instruction and collects the position data detected by the self-reseting sensor; the detection module automatically detects the collected position data, outputs the calculation result of the performance parameters of the electric actuator and compares with the set value to determine whether the corresponding performance parameters are qualified, and feeds back the test result to the man-machine interface.

[0016] The output end of the measured electric actuator performs linear reciprocating motion.

[0017] Compared with the prior art, the present application has the following advantages: (1) The test equipment is directly attracted to the corresponding position of the measured electric actuator by magnetic force, and can be directly removed after testing, which is convenient to disassemble and assemble; at the same time, the measuring head is installed at the top of the rod in a threaded manner, which is convenient to select different height measuring heads according to different measured electric actuators to realize the contact and compression of the measuring head and the output end surface of the electric actuator by the elastic member of the self-resetting sensor during the test stroke.

[0018] The two connection positions of the test equipment and the measured electric actuator do not need to use separate connecting pieces, which is simple in structure, realizes quick assembly and disassembly during testing, and reduces the workload.

[0019] (2) During the test, there is no strict position requirement between the electric actuator and the test equipment, and no additional alignment is required, only the contact between the measuring head and the electric actuator is required, which further simplifies the operation steps and reduces the requirements for the tester.

[0020] (3) The test data is collected in real time by the self-resetting sensor, and the test result is automatically detected and analyzed by the information processing system, which reduces the personnel participation degree, reduces the process error, and improves the test accuracy.

[0021] In summary, the present application has the advantages of simple and reliable structure, simple operation, strong universality and practicality, effectively reduces the labor intensity, realizes process automation, improves the product testing efficiency and result accuracy, and has very important significance for protecting the production of electric actuators. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The logic diagram of the working principle of the electric actuator test of the present application is shown in the figure; Figure 2A structural schematic diagram of a rapid inspection device for electric actuator test according to the present application; Figure 3 A structural schematic diagram of a rapid inspection device for electric actuator test according to the present application and an electric actuator to be tested in an intermediate process of installation; Figure 4 A structural schematic diagram of a rapid inspection device for electric actuator test according to the present application and an electric actuator to be tested in an initial state of detection after installation is completed; Figure 5 A structural schematic diagram of a rapid inspection device for electric actuator test according to the present application and an electric actuator to be tested in a termination state of detection after installation is completed; In the figure, 1 is a measuring head, 2 is a self-resetting sensor, 21 is a rod, 3 is an installation support, 4 is a magnetic steel, 5 is an inner hexagonal cylindrical head screw, 6 is a cable, 7 is an information processing system, 71 is a man-machine interface, 72 is a data analysis unit, 8 is an electric actuator, 81 is an electric actuator installation flange, and 82 is an electric actuator output end. DETAILED DESCRIPTION

[0023] The embodiments of the present application will be described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0024] In the description of the present application, it should be understood that the terms "upper", "lower", "height", "axial", "gap", "start", "end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying 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 a limitation of the present application. In the description of the present application, unless otherwise specified, the meaning of "several" is two or more.

[0025] In the present application, unless otherwise explicitly specified and limited, the terms "installation", "connection", "contact", "compression", "separation", "fixation", "placement" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. 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.

[0026] As Figures 1-4As shown, the present application proposes a kind of quick test equipment for electric actuator test, which includes data acquisition device and information processing system, wherein data acquisition device includes quick mounting support, self-resetting sensor and the like.

[0027] As Figure 2 Shown, quick mounting support includes mounting support 3 and magnetic steel 4, and the upper end surface of mounting support 3 is provided with mounting hole slot, magnetic steel 4 is placed in mounting hole slot, and magnetic steel 4 is interference fit with mounting hole slot;The lower end surface of mounting hole slot is processed with through hole with smaller diameter than the inner diameter of mounting hole slot for discharging air in slot when magnetic steel 4 is assembled;Center position of mounting support 3 is processed with fixed guide slot for mounting and fixing self-resetting sensor 2.

[0028] Self-resetting sensor 2 includes rod 21, measuring head 1 and displacement sensor (installed in the interior of mounting support 3, not drawn), and contains elastic member in self-resetting sensor 2, rod 21 can move up and down axially freely within specified stroke, and has self-resetting function;Self-resetting sensor 2 has data acquisition and communication function, can collect and transmit displacement change data of rod 21;Displacement sensor is fixedly installed in fixed guide slot in the center of mounting support 3 through internal hexagonal cylindrical head screw 5;The top end of rod 21 is fixedly connected with measuring head 1;Self-resetting sensor 2 is connected with information processing system 7 through cable 6.

[0029] Information processing system 7 includes man-machine interface 71 and data analysis unit 72, wherein data analysis unit can adopt PLC;Man-machine interface 71 is operated in touch screen mode, and display interface provides control buttons and can display test items and test results in real time;Data analysis unit 72 mainly includes control module and detection module, control module is triggered by control buttons of man-machine interface 71, is responsible for completing the output of detection instruction and collecting position data detected by self-resetting sensor 2;Detection module is responsible for automatic detection of collected data, outputs the calculation results of performance parameters such as accuracy, speed, stroke time error of electric actuator, and compares with set value, confirms whether corresponding test item is qualified through logical judgment, and feeds back test result to man-machine interface 71.

[0030] As Figure 2 Shown, magnetic steel 4 in the quick test equipment for electric actuator test of the present application is uniformly distributed on the upper end surface of mounting support 3 (as shown in view A), and the magnetic pole direction of magnetic steel is kept consistent, and the magnetic force generated by magnetic steel 4 is used to ensure that the upper end surface of quick mounting support is adsorbed on the lower end surface of electric actuator mounting flange 81, without using traditional screw connection mode for locking.

[0031] As Figure 3As shown, the present application is used in the test head 1 of the quick test equipment for electric actuator test is connected with the output end 82 of electric actuator (as shown in view B-B), the upper end surface of the test head 1 and the lower end surface of the output end 82 of electric actuator should have the contact part of stable coincidence, but it is not required to have the concentricity and the positional accuracy, the product test, the operator directly places, and it is not required to carry out the strict alignment.

[0032] As shown, the present application is used in the test head 1 of the quick test equipment for electric actuator test is connected with the output end 82 of electric actuator (as shown in view B-B), the upper end surface of the test head 1 and the lower end surface of the output end 82 of electric actuator should have the contact part of stable coincidence, but it is not required to have the concentricity and the positional accuracy, the product test, the operator directly places, and it is not required to carry out the strict alignment. Figure 3 As shown, the present application is used in the test head 1 of the quick test equipment for electric actuator test is connected with the output end 82 of electric actuator (as shown in view B-B), the upper end surface of the test head 1 and the lower end surface of the output end 82 of electric actuator should have the contact part of stable coincidence, but it is not required to have the concentricity and the positional accuracy, the product test, the operator directly places, and it is not required to carry out the strict alignment.

[0033] As shown, the present application is used in the test head 1 of the quick test equipment for electric actuator test is connected with the output end 82 of electric actuator (as shown in view B-B), the upper end surface of the test head 1 and the lower end surface of the output end 82 of electric actuator should have the contact part of stable coincidence, but it is not required to have the concentricity and the positional accuracy, the product test, the operator directly places, and it is not required to carry out the strict alignment. Figure 4 As shown, the present application is used in the test head 1 of the quick test equipment for electric actuator test is connected with the output end 82 of electric actuator (as shown in view B-B), the upper end surface of the test head 1 and the lower end surface of the output end 82 of electric actuator should have the contact part of stable coincidence, but it is not required to have the concentricity and the positional accuracy, the product test, the operator directly places, and it is not required to carry out the strict alignment.

[0034] As shown, the present application is used in the test head 1 of the quick test equipment for electric actuator test is connected with the output end 82 of electric actuator (as shown in view B-B), the upper end surface of the test head 1 and the lower end surface of the output end 82 of electric actuator should have the contact part of stable coincidence, but it is not required to have the concentricity and the positional accuracy, the product test, the operator directly places, and it is not required to carry out the strict alignment. Figure 5 As shown, the present application is used in the test head 1 of the quick test equipment for electric actuator test is connected with the output end 82 of electric actuator (as shown in view B-B), the upper end surface of the test head 1 and the lower end surface of the output end 82 of electric actuator should have the contact part of stable coincidence, but it is not required to have the concentricity and the positional accuracy, the product test, the operator directly places, and it is not required to carry out the strict alignment.

[0035] As shown, the present application is used in the test head 1 of the quick test equipment for electric actuator test is connected with the output end 82 of electric actuator (as shown in view B-B), the upper end surface of the test head 1 and the lower end surface of the output end 82 of electric actuator should have the contact part of stable coincidence, but it is not required to have the concentricity and the positional accuracy, the product test, the operator directly places, and it is not required to carry out the strict alignment. Figures 3-5As shown, in the detection process of the electric actuator 8 to be detected, the elastic member in the self-resetting sensor 2 is always in a compressed state to generate an elastic force, and the rod member 21 releases an upward thrust force to the measuring head to ensure that the upper end surface of the measuring head 1 is always pressed against the lower end surface of the output end 82 of the electric actuator, and the position change of the measuring head 1, i.e. the rod member 21, is consistent with the position change of the output end 82 of the electric actuator.

[0036] The above description is only one embodiment of the present application, which is used to help understand the present application and does not limit the present application. According to the idea of the present application, those skilled in the art can make some simple deductions, deformations or substitutions, which all belong to the protection scope of the present application.

Claims

1. A data acquisition device for testing electric actuators, characterized in that it comprises: The device includes a quick-release bracket and a self-resetting sensor. A magnetic material is nested on the upper surface of the quick-release bracket. A fixed guide groove is provided along the axial direction of the quick-release bracket. The self-resetting sensor includes a displacement sensor, a probe, a rod, and a reset elastic element. The displacement sensor is fixedly mounted on the quick-release bracket. The bottom end of the rod extends into the quick-release bracket through the fixed guide groove and can slide freely along the groove. The probe is located at the top of the rod. A reset elastic element is provided between the bottom end of the rod and the quick-release bracket. During testing, the magnetic material on the upper surface of the quick-release bracket is magnetically attracted to the bottom of the flange of the tested electric actuator. The reset elastic element is compressed, and the elastic force acts on the probe through the rod, causing the upper surface of the probe to contact and press against the lower surface of the output end of the tested electric actuator.

2. The data collection device for testing electric actuators according to claim 1, characterized in that, The upper surface of the quick-release bracket is machined with mounting holes and grooves, and the magnetic material is nested in the mounting holes and grooves with an interference fit.

3. The data collection device for testing electric actuators according to claim 2, characterized in that, The magnetic material is a magnet; there are multiple mounting holes and slots, evenly distributed on the upper surface of the quick-mount bracket; multiple magnets are nested and assembled in the corresponding mounting holes and slots, and the magnetic pole directions are consistent.

4. The data acquisition device for testing electric actuators according to claim 3, characterized in that, The bottom of the mounting slot is provided with an exhaust vent, the diameter of which is smaller than the inner diameter of the mounting slot.

5. The data acquisition device for testing electric actuators according to claim 1, characterized in that, The displacement sensor is fixed to the quick-release bracket by fasteners; the probe is detachably fixed to the top of the rod by threads.

6. The data acquisition device for testing electric actuators according to claim 5, characterized in that, The height of the probe meets the following conditions: the bottom of the flange of the electric actuator under test is placed on the same plane as the upper end face of the quick-release bracket. When the reset elastic element is in a free extension state, the upper end face of the probe is always higher than the lower end face of the output end of the electric actuator during the test stroke of the electric actuator under test.

7. A rapid testing device for testing electric actuators, wherein the rapid testing device employs the data acquisition device described in any one of claims 1 to 6, characterized in that, Also includes: The information processing system is connected to the self-resetting sensor via a cable, receives the position data collected by the self-resetting sensor, calculates and outputs the performance parameters of the electric actuator.

8. The rapid testing equipment for testing electric actuators according to claim 7, characterized in that, The information processing system includes a human-machine interface and a data analysis unit. The human-machine interface uses a touch screen. The data analysis unit includes a control module and a detection module. The control module communicates with the tested electric actuator and the self-resetting sensor, outputs detection commands, and collects position data detected by the self-resetting sensor. The detection module automatically detects the collected position data, outputs the calculated performance parameters of the electric actuator, compares them with the set values, determines whether the corresponding performance parameters are qualified, and feeds back the test results to the human-machine interface.

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