An automatic measuring device for a vehicle-mounted photoelectric turntable base part

Abstract

The application discloses a kind of automatic measuring device of vehicle-mounted photoelectric turntable base parts, including processing table, the upper side center position of the processing table is rotatably arranged by the rotation center column driven by motor, the side of the rotation center column is provided with part placing table, the other side of the rotation center column is provided with part measuring table, the upper end of the rotation center column extends out rear mounting arm, the first measuring mechanism for grabbing part and measuring first through hole is set on the mounting arm, the side of the part measuring table is also provided with two second measuring mechanisms for measuring the precision of second through hole, and the size of the part is measured quickly by setting first pressure sensor, second pressure sensor, torsion sensor, cooperating with numerical change and time relation chart, whether the error of part exists can be accurately and intuitively indicated.

Description

Technical Field

[0001] This invention relates to the field of measuring tools, and more specifically to an automatic measuring device for a vehicle-mounted photoelectric turntable base part. Background Technology

[0002] The vehicle-mounted optoelectronic turntable base is the foundation of the entire two-axis stabilization platform. As the overall system support, it serves as the mounting base for the entire turntable (including the de-rotation axis assembly, pitch axis assembly, optical lens barrel, and all other components), and is rigidly connected to the vehicle, ship, or other carrier by means of bolts or other methods.

[0003] When inspecting the dimensions of the base parts, refer to the instruction manual attached. Figure 8 The base component has 6 holes (Ø4.2±0.05) evenly distributed around its circumference, with a center dimension of Ø102±0.05; 2 holes (Ø2) with angles of 15°±10′, 58°±5′, and Ø111. +0.035 Dimensions such as the inner hole require measurement using a projector. However, after this process, burrs may appear on the machined surfaces, such as the faceted opening, which can introduce errors during projector measurement. Therefore, the burrs must be removed before projector measurement, which is cumbersome. Furthermore, for the dimensions 15°±10′ and 58°±5′, a compact mandrel needs to be inserted into the Ø2 hole for measurement. However, the wall thickness of the Ø2 hole is thin, and the mandrel will still introduce errors, especially given the small tolerances of the parts. Projection measurement is difficult and prone to significant errors. The angular phase relationship between the Ø2 hole and the 6-Ø4.2 holes is checked visually against the drawing, which is prone to misreading and carries a certain risk. Therefore, this invention proposes an automatic measuring device for this base part. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, the present invention provides an automatic measuring device for the base parts of a vehicle-mounted optoelectronic turntable. By setting a first pressure sensor, a second pressure sensor, and a torque sensor, and combining them with a graph showing the relationship between numerical changes and time, the device can accurately and intuitively indicate whether there are errors in the parts, and achieve rapid measurement of the part dimensions.

[0005] Technical solution

[0006] An automatic measuring device for a vehicle-mounted optoelectronic turntable base part includes a processing table. A rotating central column driven by a motor is rotatably mounted at the upper center of the processing table. A part placement platform is provided on one side of the rotating central column, and a part measuring platform is provided on the other side of the rotating central column. A mounting arm extends from the upper end of the rotating central column. A first measuring mechanism for gripping the part and measuring a first through hole is provided on the mounting arm. Two second measuring mechanisms for measuring the accuracy of a second through hole are also provided on one side of the part measuring platform and fixed to the processing table.

[0007] Furthermore, the part also includes a bottom groove to be measured, a flat part is provided on the upper side of the part, a circular hole is provided on the lower side of the flat part, and a mating hole is provided on the outer side of the circular hole.

[0008] Furthermore, the upper side of the part placement platform is provided with a boss that can cooperate with the bottom groove. The boss is also provided with a bracket that can be inserted into the mating hole and position and fix the part. The upper end of the bracket is inserted into the mating hole and does not exceed the highest point of the mating hole.

[0009] Furthermore, the first measuring mechanism includes a first electrically telescopic assembly fixed to the lower surface of the mounting arm. The lower telescopic end of the first electrically telescopic assembly is fixed with a connecting portion. A limiting rod that penetrates and is slidably connected to the mounting arm is fixed to the upper side of the connecting portion. A connecting end is provided inside the connecting portion. A mating plate that can be adapted to the flat portion is fixed to the lower end of the connecting end. A first pressure sensor for measuring the adaptation resistance of the part is provided between the connecting end and the connecting portion.

[0010] Furthermore, an electric telescopic rod is fixedly provided on the lower side of the mating plate, and a positioning end that can cooperate with the circular hole is fixedly provided on the telescopic end of the electric telescopic rod. The positioning end is slidably connected to a limiting ring fixed to the mating plate.

[0011] Furthermore, the part measuring platform includes an annular platform for measuring the bottom groove portion, the annular platform portion having a plurality of mounting holes, the mounting holes having protrusions for measuring the first through hole, and the annular platform portion also having a slotted portion for measuring the second through hole.

[0012] Furthermore, the second measuring mechanism includes an extension plate fixed to the processing table, a second electric telescopic assembly fixed to the extension plate, a telescopic block fixed to the movable end of the second electric telescopic assembly, and a guide portion that passes through and is slidably connected to the telescopic block fixed to the processing table.

[0013] Furthermore, a mounting platform is fixed to the upper side of the telescopic block, and a motor is fixed to the mounting platform. A torque sensor is connected to the output shaft of the motor. A connecting rod is provided on the other side of the torque sensor. The connecting rod is reinforced to the mounting platform by a bearing. A measuring rod is inserted into the side of the connecting rod away from the torque sensor. One end of the measuring rod is provided with a rectangular extrusion end located on the connecting rod. The extrusion end abuts against a second pressure sensor.

[0014] Furthermore, a column is provided on the lower side of the processing table.

[0015] Beneficial effects

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] By setting up a first pressure sensor, a second pressure sensor, and a torque sensor, and using a graph showing the relationship between numerical changes and time, it is possible to accurately and intuitively indicate whether there are errors in the parts, and to achieve rapid measurement of the parts' dimensions. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an automatic measuring device for a vehicle-mounted optoelectronic turntable base part according to the present invention;

[0019] Figure 2 This is a top view of the structure of the second measuring mechanism of the present invention;

[0020] Figure 3 A top view of the mounting arm's structural position;

[0021] Figure 4 for Figure 1 Enlarged view of point A in the middle;

[0022] Figure 5 This is a schematic diagram of the part measuring stage;

[0023] Figure 6 This is a schematic diagram of the structure of the part to be tested;

[0024] Figure 7 This is a schematic diagram of the structure when a part is measured in conjunction with a part measuring table.

[0025] Figure 8 This is a schematic diagram of the measurement data mentioned in the background art.

[0026] Attached icon number

[0027] First measuring mechanism 901, second measuring mechanism 902, processing table 1, column 2, telescopic block 3, extension plate 4, second electric telescopic assembly 5, guide part 6, part placement table 7, electric telescopic rod 8, limiting ring 9, positioning end 10, first pressure sensor 11, connecting part 12, limiting rod 13, rotation center column 14, mounting arm 15, first electric telescopic assembly 16, connecting end 17, mating plate 18, bracket part 19, boss part 20, part measuring table 21, ring table part 211, protrusion part 212, mounting hole 213, slotted part 214, measuring rod 22, bearing 23, connecting rod 24, torque sensor 25, motor 26, extrusion end 27, second pressure sensor 28, part 29, first through hole 291, bottom groove part 292, mating hole part 293, second through hole 294, round hole part 295, flat part 296, mounting table surface 30. Detailed Implementation

[0028] To better illustrate the content of this invention, the following description is provided in conjunction with the accompanying drawings and examples:

[0029] have Figures 1-8 As shown, this invention discloses an automatic measuring device for a vehicle-mounted optoelectronic turntable base part, including a processing table 1. A rotating central column 14 driven by a motor is rotatably arranged at the upper center position of the processing table 1. A part placement platform 7 is arranged on one side of the rotating central column 14, and a part measuring platform 21 is arranged on the other side of the rotating central column 14. A mounting arm 15 extends from the upper end of the rotating central column 14. A first measuring mechanism 901 for gripping part 29 and measuring a first through hole 291 is arranged on the mounting arm 15. Two second measuring mechanisms 902 for measuring the accuracy of a second through hole 294 are also arranged on one side of the part measuring platform 21 and fixed on the processing table 1.

[0030] Furthermore, the part 29 also includes a bottom groove 292 to be measured, a flat part 296 is provided on the upper side of the part 29, a round hole 295 is provided on the lower side of the flat part 296, and a mating hole 293 is provided on the outer side of the round hole 295.

[0031] Furthermore, the upper side of the part placement platform 7 is provided with a boss 20 that can cooperate with the bottom groove 292. The boss 20 is also provided with a bracket 19 that can be inserted into the mating hole 293 and position and fix the part 29. The upper end of the bracket 19 is inserted into the mating hole 293 and does not exceed the highest point of the mating hole 293.

[0032] Furthermore, the first measuring mechanism 901 includes a first electric telescopic assembly 16 fixed to the lower surface of the mounting arm 15. A connecting part 12 is fixed to the lower telescopic end of the first electric telescopic assembly 16. A limiting rod 13 that passes through and is slidably connected to the mounting arm 15 is fixed to the upper side of the connecting part 12. A connecting end 17 is provided inside the connecting part 12. A mating plate 18 that can be adapted to the flat part 296 is fixed to the lower end of the connecting end 17. A first pressure sensor 11 for measuring the adaptation resistance of the part 29 is provided between the connecting end 17 and the connecting part 12. When the part 29 is placed into the part measuring table 21, if there is a large error in size, there will be obvious resistance during the placement process, which will cause the value of the first pressure sensor 11 to change. By expressing the relationship between the value change and time through a two-dimensional graph, it can be clearly seen whether the part 29 meets the accuracy standard.

[0033] Furthermore, an electric telescopic rod 8 is fixedly provided on the lower side of the mating plate 18, and a positioning end 10 that can cooperate with the circular hole 295 is fixedly provided on the telescopic end of the electric telescopic rod 8. The positioning end 10 is slidably connected to a limiting ring 9 fixed to the mating plate 18.

[0034] Furthermore, the part measuring platform 21 includes an annular platform 211 for measuring the bottom groove 292. The annular platform 211 is provided with a plurality of mounting holes 213. The mounting holes 213 are provided with protrusions 212 for measuring the first through hole 291. The annular platform 211 is also provided with a slotted portion 214 for measuring the second through hole 294.

[0035] Furthermore, the second measuring mechanism 902 includes an extension plate 4 fixed on the processing table 1, a second electric telescopic assembly 5 fixed on the extension plate 4, a telescopic block 3 fixed at the movable end of the second electric telescopic assembly 5, and a guide portion 6 fixed on the processing table 1 that passes through and is slidably connected to the telescopic block 3.

[0036] Furthermore, a mounting platform 30 is fixedly provided on the upper side of the telescopic block 3. A motor 26 is fixedly provided on the mounting platform 30. A torque sensor 25 is connected to the output shaft of the motor 26. A connecting rod 24 is provided on the other side of the torque sensor 25. The connecting rod 24 is reinforced to the mounting platform 30 by a bearing 23. A measuring rod 22 is inserted into the side of the connecting rod 24 away from the torque sensor 25. A rectangular extrusion end 27 is provided at one end of the measuring rod 22, located on the connecting rod 24. The extrusion end 27 abuts against a second pressure sensor 28. When the measuring rod 22 is inserted into the second through hole 294 and the slot 214, if there is resistance, it will cause a change in the value of the second pressure sensor 28. When the measuring rod 22 rotates, if there is rotational resistance, it will cause a change in the value of the torque sensor 25. By expressing the relationship between the value change and time through a two-dimensional graph, it can be clearly seen whether the part 29 meets the accuracy standard.

[0037] Furthermore, a column 2 is provided on the lower side of the processing table 1.

[0038] Specifically, when measurement is required, part 29 is placed on part placement platform 7, so that bottom groove 292 mates with boss 20, and at the same time, the upper end of bracket 19 is inserted into mating hole 293 to achieve positioning of part;

[0039] Then the first electric telescopic assembly 16 is activated, which moves the mating plate 18 down until the mating plate 18 contacts the flat part 296. At this time, the electric telescopic rod 8 is activated, which moves the positioning end 10 into the round hole 295 to grasp the part 29.

[0040] Then the rotating center column 14 is rotated to the work position where the part measuring table 21 is located, and the part 29 is moved down at a constant speed through the first electric telescopic component 16;

[0041] Until the protrusion 212 is inserted into the first through hole 291 and the annular portion 211 is embedded in the bottom groove portion 292, if the first pressure sensor 11 does not show a significant change in pressure value during the insertion process, then the dimensions of the first through hole 291 and the bottom groove portion 292 meet the standard.

[0042] The normal value of the first pressure sensor 11 is the total weight of the connecting end 17 and the parts below it. The dimensional error will cause resistance during the insertion process, resulting in a decrease in pressure.

[0043] Then, the second electric telescopic assembly 5 is activated, so that the telescopic block 3 is close to the processing table 1, thereby allowing the measuring rod 22 to be inserted into the second through hole 294 and the slotted part 214. If there is a significant change in the value of the second pressure sensor 28 during the insertion process, it indicates that there is a dimensional error in the second through hole 294.

[0044] Then start the motor 26 to drive the connecting rod 24 and the measuring rod 22 to rotate. If the torque sensor 25 shows a significant change in value, it indicates that there is an error in the size.

[0045] If neither the torque sensor 25 nor the second pressure sensor 28 shows a significant change in value, it indicates that the dimensions meet the standard.

[0046] After measurement, part 29 can be rotated to another station and then removed.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the technical solutions of the present invention have 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 described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An automatic measuring device for a vehicle-mounted photoelectric turntable base part, characterized in that: The system includes a processing table (1), on which a rotating central column (14) driven by an electric motor is rotatably mounted at the upper center position. A part placement table (7) is provided on one side of the rotating central column (14), and a part measuring table (21) is provided on the other side of the rotating central column (14). An mounting arm (15) extends from the upper end of the rotating central column (14). A first measuring mechanism (901) for gripping a part (29) and measuring a first through hole (291) is provided on the mounting arm (15). Two second measuring mechanisms (902) for measuring the accuracy of a second through hole (294) are also provided on one side of the part measuring table (21) and fixed on the processing table (1). The part (29) also includes a bottom groove (292) to be measured. A flat part (296) is provided on the upper side of the part (29), a round hole part (295) is provided on the lower side of the flat part (296), and a mating hole part (293) is provided on the outer side of the round hole part (295). The first measuring mechanism (901) includes a first electric telescopic assembly (16) fixed to the lower surface of the mounting arm (15). The lower telescopic end of the first electric telescopic assembly (16) is fixed with a connecting part (12). The upper side of the connecting part (12) is fixed with a limiting rod (13) that passes through and is slidably connected to the mounting arm (15). The connecting part (12) is provided with a connecting end (17). The lower end of the connecting end (17) is fixed with a mating plate (18) that can be adapted to the flat part (296). A first pressure sensor (11) for measuring the adaptation resistance of the part (29) is provided between the connecting end (17) and the connecting part (12). The second measuring mechanism (902) includes an extension plate (4) fixed on the processing table (1), a second electric telescopic assembly (5) fixed on the extension plate (4), a telescopic block (3) fixed on the movable end of the second electric telescopic assembly (5), and a guide part (6) that passes through and is slidably connected to the telescopic block (3) fixed on the processing table (1). The telescopic block (3) has a mounting platform (30) fixed on its upper side. A motor (26) is fixed on the mounting platform (30). A torque sensor (25) is connected to the output shaft of the motor (26). A connecting rod (24) is provided on the other side of the torque sensor (25). The connecting rod (24) is reinforced to the mounting platform (30) by a bearing (23). A measuring rod (22) is inserted into the side of the connecting rod (24) away from the torque sensor (25). A rectangular extrusion end (27) is provided at one end of the measuring rod (22) located on the connecting rod (24). The extrusion end (27) abuts against a second pressure sensor (28).

2. The automatic measuring device for a vehicle-mounted photoelectric turntable base part according to claim 1, characterized in that: The upper side of the part placement platform (7) is provided with a boss (20) that can cooperate with the bottom groove (292). The boss (20) is also provided with a bracket (19) that can be inserted into the mating hole (293) and position and fix the part (29). The upper end of the bracket (19) is inserted into the mating hole (293) and does not exceed the highest point of the mating hole (293).

3. The automatic measuring device for a vehicle-mounted photoelectric turntable base part according to claim 2, characterized in that: An electric telescopic rod (8) is fixedly provided on the lower side of the mating plate (18). The telescopic end of the electric telescopic rod (8) is fixedly provided with a positioning end (10) that can cooperate with the circular hole (295). The positioning end (10) is connected through and slidably connected to a limiting ring (9) fixed to the mating plate (18).

4. The automatic measuring device for a vehicle-mounted photoelectric turntable base part according to claim 3, characterized in that: The part measuring platform (21) includes an annular platform (211) for measuring the bottom groove (292). The annular platform (211) is provided with a plurality of mounting holes (213). The mounting holes (213) are provided with protrusions (212) for measuring the first through hole (291). The annular platform (211) is also provided with a slotted portion (214) for measuring the second through hole (294).

5. The automatic measuring device for a vehicle-mounted photoelectric turntable base part according to claim 4, characterized in that: A column (2) is provided on the lower side of the processing table (1).

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