A size measuring device and an outer size measuring method of an electronic actuator

Abstract

The application discloses a size measuring device and an outline size measuring method of an electronic executor, relates to the technical field of measuring gauges, and comprises a basic calibration frame, a calibration standard block, a mounting and fastening assembly and a calibration and measurement assembly. The basic calibration frame is provided with a positioning clamping groove with an open top. The calibration standard block is detachably arranged in the positioning clamping groove and protrudes from the groove top surface of the positioning clamping groove. The calibration and measurement assembly is detachably arranged on the basic calibration frame and is located at the periphery of the positioning clamping groove. The measurement end of the calibration and measurement assembly extends outward to above the positioning clamping groove. When the outline size of the electronic executor is tested, the calibration and measurement assembly can be zero calibrated after the calibration standard block is mounted to the positioning clamping groove. Then, the electronic executor to be measured is placed in the positioning clamping groove and assembled on the basic calibration frame. The electronic executor to be measured is fixed by the mounting and fastening assembly to avoid sliding and affect the measurement accuracy. Finally, the calibration and measurement assembly is used for re-measurement, and the measurement accuracy is high.

Description

Technical Field

[0001] This invention relates to the field of measuring instruments, and in particular, to a dimensional measuring device and a method for measuring the external dimensions of an electronic actuator. Background Technology

[0002] Some irregularly shaped products (such as electronic actuators) cannot be measured directly. Instead, a projection method is required to project the area to be measured onto a plane and measure the dimension on the plane. This requires specialized optical equipment, which is limited by the space and equipment. The dimension is affected by the projection, resulting in inaccurate measurement. The measurement of the external dimensions is cumbersome and complicated.

[0003] Therefore, it is necessary to propose a dimension measuring device and an electronic actuator for measuring external dimensions to solve or at least alleviate some of the aforementioned defects. Summary of the Invention

[0004] The dimension measuring device and the method for measuring the external dimensions of electronic actuators provided by this invention solve the technical problem of inaccurate external dimension measurement of existing electronic actuators.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A calibration device includes a base calibration frame, a calibration standard block, a mounting and fastening assembly, and a calibration measurement assembly. The base calibration frame has a positioning slot with a top opening. The calibration standard block is detachably disposed in the positioning slot and protrudes from the top surface of the slot. The calibration measurement assembly is detachably disposed on the base calibration frame and located around the positioning slot. The measuring end of the calibration measurement assembly extends outward to above the positioning slot. The first end of the mounting and fastening assembly is disposed on the base calibration frame, and the second end of the mounting and fastening assembly extends to above the positioning slot.

[0006] Furthermore, the basic calibration frame includes a mounting base plate, a calibration base plate, a measurement mounting plate, and a positioning mounting plate. The calibration base plate and the measurement mounting plate are disposed opposite each other on the mounting base plate along a first lateral direction. The calibration base plate is provided with a positioning slot extending along a second lateral direction. The positioning mounting plate is disposed on the calibration base plate and is located on the side of the positioning slot away from the measurement mounting plate. The calibration measurement component is detachably disposed on the measurement mounting plate, and the mounting fastening component is detachably disposed on the positioning mounting plate.

[0007] Furthermore, one side of the positioning slot has a groove wall that is sheared along the height direction to form an avoidance groove.

[0008] Furthermore, the clearance groove can be a semi-circular groove or a rectangular groove.

[0009] Furthermore, the vertical cross-section of the calibration standard block is Z-shaped.

[0010] Furthermore, the measurement mounting plate includes a mounting base plate and a mounting cover plate, the mounting cover plate being detachably mounted on the mounting base plate, and a calibration measurement assembly being installed between the mounting base plate and the mounting cover plate.

[0011] Furthermore, the fastening assembly includes a clamp and a retaining screw. The clamp is located on the positioning mounting plate and the cantilever clamping end is located above the clearance slot. The cantilever clamping end has a threaded opening, and the retaining screw passes vertically through the threaded opening and is threadedly connected to the cantilever clamping end.

[0012] Furthermore, the clamp includes a pivot, a toggle lever, a linkage lever, and a clamping lever. The bottom of the first end of the toggle lever is hinged to the pivot via the linkage lever. The second end of the toggle lever is cantilevered outward. The bottom of the first end of the clamping lever is hinged to the pivot. The top of the first end of the clamping lever is hinged to the top of the second end of the toggle lever. The second end of the clamping lever is a cantilevered clamping end.

[0013] Furthermore, the calibrated measuring component is a dial indicator.

[0014] This invention provides a method for measuring the external dimensions of an electronic actuator, using the aforementioned dimensional measuring device, and includes the following steps: Determine the calibration base plate and calibration standard block that are compatible with the electronic actuator under test. Assemble the calibration base plate on the mounting base plate. The calibration base plate is equipped with mounting fastening components. The mounting base plate is equipped with a measuring mounting plate that is arranged opposite to the calibration base plate. The measuring mounting plate is equipped with a dial indicator. Place the calibration standard block into the positioning slot, adjust the dial indicator measuring rod to contact the surface of the calibration standard block, and use the current reading of the dial indicator as the zero point; Remove the calibration standard block, install the electronic actuator under test onto the calibration base plate, and fix the electronic actuator under test through the calibration measurement components; Read the current measurement reading of the dial indicator; use The error measurement value of the electronic actuator under test is obtained by calculation.

[0015] The present invention has the following beneficial effects: The dimensional measuring device of the present invention includes a base calibration frame, a calibration standard block, a mounting and fastening assembly, and a calibration measuring assembly. The base calibration frame has a positioning slot with a top opening. The calibration standard block is detachably disposed within the positioning slot and protrudes from the top surface of the slot. The calibration measuring assembly is detachably disposed on the base calibration frame and located around the positioning slot. The measuring end of the calibration measuring assembly extends outward to above the positioning slot. A first end of the mounting and fastening assembly is disposed on the base calibration frame, and a second end of the mounting and fastening assembly extends above the positioning slot. When performing dimensional testing on electronic actuators, after zero-point calibration of the calibration measurement component by installing a calibration standard block into the positioning slot, the electronic actuator under test is placed in the positioning slot and assembled on the basic calibration frame. Then, the electronic actuator under test is fixed by installing fastening components to prevent it from sliding and affecting the measurement accuracy. Finally, the calibration measurement component is used to perform the measurement again. This allows the error measurement value of the electronic actuator under test to be calculated based on the zero-point dimension and the current measurement dimension, enabling direct measurement of the external dimensions of the electronic actuator with high measurement accuracy.

[0016] In addition to the objectives, features, and advantages described above, the present invention has other objectives, features, and advantages. The invention will now be described in further detail with reference to the figures. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is one of the three-dimensional structural schematic diagrams of the size measuring device in one embodiment of the present invention; Figure 2 This is a second three-dimensional structural schematic diagram of the size measuring device in one embodiment of the present invention; Figure 3 This is a schematic diagram of the size measuring device in use according to an embodiment of the present invention.

[0018] Legend: 100. Dimensional measuring device; 10. Basic calibration frame; 101. Positioning slot; 102. Clearance slot; 11. Mounting base plate; 12. Calibration base plate; 13. Measuring mounting plate; 131. Mounting base plate; 132. Mounting cover plate; 14. Positioning mounting plate; 20. Calibration standard block; 30. Mounting fastening assembly; 31. Clamp; 32. Holding screw; 40. Calibration measuring assembly. Detailed Implementation

[0019] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention 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 indication will also change accordingly.

[0022] Furthermore, the use of terms such as "first" and "second" in this invention 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 with "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 invention.

[0023] Please refer to Figure 1 , Figure 2 and Figure 3 The present invention provides a size measuring device 100, including a base calibration frame 10, a calibration standard block 20, a mounting fastening component 30, and a calibration measuring component 40. The base calibration frame 10 is provided with a positioning slot 101 with a top opening. The calibration standard block 20 is detachably disposed in the positioning slot 101 and protrudes from the top surface of the positioning slot 101. The calibration measuring component 40 is detachably disposed on the base calibration frame 10 and located on the periphery of the positioning slot 101. The measuring end of the calibration measuring component 40 extends outward to the top of the positioning slot 101. The first end of the mounting fastening component 30 is disposed on the base calibration frame 10, and the second end of the mounting fastening component 30 extends to the top of the positioning slot 101.

[0024] The present invention provides a dimensional measuring device 100, comprising a base calibration frame 10, a calibration standard block 20, a mounting and fastening assembly 30, and a calibration measuring assembly 40. The base calibration frame 10 has a positioning slot 101 with a top opening. The calibration standard block 20 is detachably disposed within the positioning slot 101 and protrudes from the top surface of the slot. The calibration measuring assembly 40 is detachably disposed on the base calibration frame 10 and located around the positioning slot 101, with its measuring end extending outwards above the positioning slot 101. The first end of the mounting and fastening assembly 30 is disposed on the base calibration frame 10, and the second end of the mounting and fastening assembly 30... Extending above the positioning slot 101, when testing the external dimensions of an electronic actuator, after zero-point calibration of the calibration measurement component 40 by installing the calibration standard block 20 into the positioning slot 101, the electronic actuator under test is placed in the positioning slot 101 and assembled on the base calibration frame 10. Then, the electronic actuator under test is fixed by the installation fastening component 30 to prevent it from sliding and affecting the measurement accuracy. Finally, the calibration measurement component 40 is used to perform the measurement again. This allows the error measurement value of the electronic actuator under test to be calculated based on the zero-point size and the current measurement size, enabling direct measurement of the external dimensions of the electronic actuator with high measurement accuracy.

[0025] Understandably, in the present invention, the positioning slot 101 can be a through slot arranged along the second side, or it can be a slot that extends along the second side; in order to facilitate the picking and placing of the electronic actuator, the positioning slot 101 adopts a through slot.

[0026] Understandably, the calibration standard block 20 is arranged protruding from the top surface of the positioning slot 101, and the top protruding end of the calibration standard block 20 is used as the abutting calibration part of the measuring end of the calibration measurement assembly 40.

[0027] Furthermore, the basic calibration frame 10 includes a mounting base plate 11, a calibration base plate 12, a measurement mounting plate 13, and a positioning mounting plate 14. The calibration base plate 12 and the measurement mounting plate 13 are disposed opposite each other on the mounting base plate 11 along a first lateral direction. The calibration base plate 12 is provided with a positioning slot 101 extending along a second lateral direction. The positioning mounting plate 14 is disposed on the calibration base plate 12 and is located on the side of the positioning slot 101 away from the measurement mounting plate 13. The calibration measurement component 40 is detachably disposed on the measurement mounting plate 13, and the mounting fastening component 30 is detachably disposed on the positioning mounting plate 14. The device has a reasonable structure, which facilitates the installation and cooperation of each component. The calibration measurement component 40 is detachably mounted on the measurement mounting plate 13 to ensure that the installation of the measurement component is stable and easy to maintain and replace. The calibration base plate 12 is used to mount the product under test, and the calibration base plate 12 can be replaced for different products under test.

[0028] In one specific embodiment of the present invention, the mounting base plate 11 is provided with positioning mounting pins, and the calibration base plate 12 is provided with positioning pin holes. The positioning pin holes cooperate with the positioning pins to make the calibration base plate 12 detachably mounted on the mounting base plate 11, and the calibration base plate 12 cannot slide relative to the mounting base plate 11 in the planar direction.

[0029] Furthermore, a clearance slot 102 is formed by cutting one side of the positioning slot 101 along the height direction. The clearance slot 102 is a semi-circular slot or a rectangular slot. The design of the clearance slot 102 facilitates the placement and positioning of the electronic actuator under test, and provides operating space for the installation and fastening assembly 30, so that it can better fix the electronic actuator under test.

[0030] Furthermore, in order to improve measurement accuracy, the top protrusion of the calibration standard block 20 extends toward one side of the calibration measurement component 40, and the vertical cross-section of the calibration standard block 20 is Z-shaped.

[0031] More preferably, the calibration standard block 20 consists of a measuring calibration block and a positioning calibration block spliced ​​together along the height direction. The measuring calibration block protrudes from the side wall of the positioning calibration block, and the positioning calibration block is provided with a positioning lug that mates with the clearance slot 102. This not only facilitates the accurate positioning of the calibration standard block 20 in the positioning slot 101, but also makes it easier to mate with the clearance slot 102, further improving the accuracy of zero-position calibration.

[0032] Furthermore, the calibrated measuring component 40 is a dial indicator.

[0033] Furthermore, to facilitate the installation of the micrometer, the measuring mounting plate 13 includes a mounting base plate 131 and a mounting cover plate 132. The mounting cover plate 132 is detachably mounted on the mounting base plate 131, and a calibration measuring assembly 40 is installed between the mounting base plate 131 and the mounting cover plate 132. When installing the micrometer, first place the micrometer on the mounting base plate 131, adjust its position and angle, and then install the mounting cover plate 132 on the mounting base plate 131. Secure the mounting cover plate 132 with screws or other connectors, thereby firmly installing the micrometer on the measuring mounting plate 13. If the micrometer malfunctions or needs to be replaced, the mounting cover plate 132 can be quickly removed to take out the micrometer for repair or replacement.

[0034] Furthermore, the mounting fastening assembly 30 includes a clamp 31 and a retaining screw 32. The clamp 31 is mounted on the positioning mounting plate 14 and the cantilever clamping end is located above the clearance slot 102. The cantilever clamping end has a threaded opening, and the retaining screw 32 passes vertically through the threaded opening and is threadedly connected to the cantilever clamping end.

[0035] In one embodiment of the present invention, the abutting screw 32 has a large end and a threaded end. The abutting screw 32 passes through the cantilever clamping end from bottom to top, so as to abut the top surface of the electronic actuator through the large end, thereby improving the stability of positioning and avoiding damage to the electronic actuator.

[0036] Furthermore, the clamp 31 includes a pivot, a toggle lever, a linkage lever, and a clamping lever. The bottom of the first end of the toggle lever is hinged to the pivot via the linkage lever. The second end of the toggle lever is cantilevered outward. The bottom of the first end of the clamping lever is hinged to the pivot. The top of the first end of the clamping lever is hinged to the top of the second end of the toggle lever. The second end of the clamping lever is a cantilevered clamping end. When it is necessary to fix the electronic actuator under test, the second end of the toggle lever can be moved to open or close the clamping rod by lever principle. Through the hinge structure, the clamping rod can flexibly adjust the clamping angle and force when the toggle lever is moved. The cantilever clamping end has a threaded opening, and the abutment screw 32 passes through the threaded opening vertically and is threadedly connected to the cantilever clamping end. By rotating the abutment screw 32, it moves downward, thereby applying downward pressure to the electronic actuator under test placed in the positioning slot 101. This helps to fix the electronic actuator under test in the positioning slot 101 and avoids slippage during the measurement process, which would affect the measurement accuracy.

[0037] A method for measuring the external dimensions of an electronic actuator, using the aforementioned dimensional measuring device 100, includes the following steps: Determine the calibration base plate 12 and calibration standard block 20 that are compatible with the electronic actuator under test. Assemble the calibration base plate 12 on the mounting base plate 11. Mounting fastening assembly 30 is mounted on the calibration base plate 12. Measuring mounting plate 13 is mounted on the mounting base plate 11 and arranged opposite to the calibration base plate 12. Dial indicator is mounted on the measuring mounting plate 13. Place the calibration standard block 20 into the positioning slot 101, adjust the dial indicator measuring rod to contact the surface of the calibration standard block 20, and use the current reading of the dial indicator as the zero point. Remove the calibration standard block 20, install the electronic actuator under test onto the calibration base plate 12, and fix the electronic actuator under test through the calibration measurement assembly 40; Read the current measurement reading of the dial indicator; use The error measurement value of the electronic actuator under test is obtained by calculation.

[0038] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A size measuring device, characterized in that, The system includes a basic calibration frame, a calibration standard block, a mounting and fastening assembly, and a calibration measurement assembly. The basic calibration frame has a positioning slot with an open top. The calibration standard block is detachably mounted in the positioning slot and protrudes from the top surface of the slot. The calibration measurement component is detachably mounted on the basic calibration frame and located around the positioning slot, with the measuring end of the calibration measurement component extending outwards above the positioning slot. The first end of the mounting fastening component is located on the base calibration frame, and the second end of the mounting fastening component extends above the positioning slot.

2. The size measuring device according to claim 1, characterized in that, The basic calibration frame includes a mounting base plate, a calibration base plate, a measurement mounting plate, and a positioning mounting plate. The calibration base plate and the measurement mounting plate are disposed opposite each other on the mounting base plate along a first lateral direction. The calibration base plate is provided with a positioning slot extending along a second lateral direction. The positioning mounting plate is disposed on the calibration base plate and is located on the side of the positioning slot away from the measuring mounting plate. The calibration measurement component is detachably mounted on the measurement mounting plate, and the mounting fastening component is detachably mounted on the positioning mounting plate.

3. The size measuring device according to claim 1, characterized in that, The positioning slot has an clearance slot formed by cutting along the height direction on one side of the slot wall.

4. The size measuring device according to claim 3, characterized in that, The clearance slot is either a semi-circular slot or a rectangular slot.

5. The dimension measuring device according to any one of claims 1 to 4, characterized in that, The vertical cross-section of the calibration standard block is Z-shaped.

6. The size measuring device according to claim 2, characterized in that, The measurement mounting plate includes a mounting base plate and a mounting cover plate. The mounting cover plate is detachably mounted on the mounting base plate, and the calibration measurement component is installed between the mounting base plate and the mounting cover plate.

7. The size measuring device according to claim 2, characterized in that, The mounting fastening assembly includes a clamp and a retaining screw. The clamp is located on the positioning mounting plate and the cantilever clamping end is located above the clearance slot. The cantilever clamping end has a threaded opening, and the retaining screw passes vertically through the threaded opening and is threadedly connected to the cantilever clamping end.

8. The size measuring device according to claim 7, characterized in that, The clamp includes a pivot, a lever, a linkage, and a clamping rod. The bottom of the first end of the lever is hinged to the pivot via the linkage, and the second end of the lever is cantilevered outwards. The bottom of the first end of the clamping rod is hinged to the pivot seat, and the top of the first end of the clamping rod is hinged to the top of the second end of the actuating rod. The second end of the clamping rod is the cantilever clamping end.

9. The size measuring device according to claim 2, characterized in that, The calibration measurement component is a dial indicator.

10. A method for measuring the external dimensions of an electronic actuator, characterized in that, Using the dimensional measuring device as described in any one of claims 1 to 9, the method includes the following steps: A calibration base plate and a calibration standard block that are compatible with the electronic actuator under test are determined. The calibration base plate is assembled on the mounting base plate. The calibration base plate is equipped with a mounting fastening assembly. A measuring mounting plate arranged opposite to the calibration base plate is mounted on the mounting base plate. A dial indicator is mounted on the measuring mounting plate. Place the calibration standard block into the positioning slot, adjust the dial indicator measuring rod to contact the surface of the calibration standard block, and use the current reading of the dial indicator as the zero point; Remove the calibration standard block, install the electronic actuator under test onto the calibration base plate, and fix the electronic actuator under test using the calibration measurement components; Read the current measurement reading of the dial indicator; use The error measurement value of the electronic actuator under test is obtained by calculation.

Images