Multifunctional air gauge

Abstract

The utility model discloses a multifunctional pneumatic measuring instrument which comprises an air source supply part and a main machine, and the air source supply part can supply compressed air and is connected with the main machine. The host is provided with a display part, and the display part can display the measurement result of the workpiece; the supporting mechanism can support a long shaft and a short shaft of a workpiece, and the workpiece can rotate around a first axis; the measuring piece comprises diameter measuring heads arranged on the two sides of the workpiece, and the diameter measuring heads can measure the diameter of the workpiece; and the TS value measuring mechanism is fixedly connected with the supporting mechanism and arranged on one side of the workpiece, and the TS value measuring mechanism can measure the TS value of the workpiece. Through the arrangement of the TS value measuring mechanism and the measuring piece, the diameter of the long axis, the diameter of the short axis, the coaxiality and the TS value of the workpiece can be measured at the same time in the one-time measuring operation process, and the workpiece testing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of measurement, and in particular to a multifunctional pneumatic measuring instrument. Background Technology

[0002] A pneumatic measuring instrument is a testing instrument that converts length signals into airflow signals and uses a comparative measurement method to measure the dimensions of a workpiece. A pneumatic measuring instrument typically includes an air supply unit, a main unit, and a measuring head. The air supply unit supplies compressed gas and is connected to the main unit. This compressed gas is ejected from the measuring head's air passage via the main unit. The main unit has a display unit that shows the measurement results of the workpiece, determining whether its dimensions are within the designed tolerances and thus whether the workpiece is qualified.

[0003] Currently, outer diameter measurement, coaxiality measurement, and TS value measurement are performed on two separate measuring stations, requiring two workstations to measure these data, which wastes manpower and time. Utility Model Content

[0004] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a multifunctional pneumatic measuring instrument that can simultaneously test the outer diameter, coaxiality, and TS value of a shaft, thereby improving testing efficiency.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a multifunctional pneumatic measuring instrument, comprising an air supply unit and a main unit.

[0006] The gas supply unit is capable of supplying compressed gas and is connected to the main unit;

[0007] The host computer has a display unit that can display the measurement results of the workpiece;

[0008] Also includes:

[0009] A support mechanism capable of supporting the long and short axes of a workpiece, the workpiece being able to rotate about a first axis;

[0010] The measuring element includes diameter measuring heads disposed on both sides of the workpiece, the diameter measuring heads being capable of measuring the diameter of the workpiece;

[0011] A TS value measuring mechanism is fixedly connected to the support mechanism and is disposed on one side of the workpiece. The TS value measuring mechanism can measure the TS value of the workpiece.

[0012] Furthermore, the support mechanism includes a carrier member, which includes two symmetrically arranged support surfaces, namely a first support surface and a second support surface. The first support surface and the second support surface form a V-shaped groove with an included angle of 90°, and the included angle between the first support surface and the horizontal plane is 10~40°.

[0013] Furthermore, the angle between the first support surface and the horizontal plane is 10~20°.

[0014] Furthermore, the angle between the first support surface and the horizontal plane is 15°.

[0015] Furthermore, the TS value measuring mechanism includes a fixing member and a displacement sensor disposed on the fixing member. The test point of the displacement sensor abuts against the eccentric shaft of the workpiece, and the extension line of the test point passes through the first axis of the workpiece. During the rotation of the workpiece around the first axis, the displacement sensor can be compressed by the eccentric shaft.

[0016] Furthermore, the extension line of the test point of the displacement sensor is perpendicular to the first support surface.

[0017] Furthermore, a measuring element is provided on the carrier, the measuring element includes a measuring surface, the measuring surface is located on one side of the measuring element near the workpiece, the measuring surface and the first support surface are arranged parallel to each other, and an air outlet connected to the air passage is provided on both the measuring element and the first support surface, a pair of diameter measuring heads are respectively arranged in the air outlets of the measuring surface and the first support surface, and the line connecting the measuring points of the two diameter measuring heads passes through the first axis of the workpiece.

[0018] Furthermore, the support mechanism includes at least two bearing members, which respectively support the long axis and short axis of the workpiece, and the measuring element disposed on the bearing member can test the diameter of the long axis and the short axis respectively.

[0019] Furthermore, the diameter measuring head is a nozzle, and a pair of nozzles disposed on the first support surface and the measuring surface have a straight nozzle extending along the first axis of the workpiece, and the line connecting the pair of straight nozzles passes through the first axis of the workpiece.

[0020] Furthermore, the measuring component also includes a single-sided air nozzle, which is located on one side of the diameter measuring head. The single-sided air nozzle also has a straight nozzle extending along the first axis of the workpiece, and the direction of gas injection from the single-sided air nozzle is the same as the direction of gas injection from the diameter measuring head.

[0021] The beneficial effects of this utility model are:

[0022] 1) By setting up the TS value measuring mechanism and measuring parts, the diameter of the major axis, the diameter of the minor axis, the coaxiality and the TS value of the workpiece can be measured simultaneously in one measurement operation, which improves the testing efficiency of the workpiece.

[0023] 2) This application tilts the first and second support surfaces together towards the first support surface, causing the opening of the V-groove to tilt towards the first support surface. This makes the first support surface the primary support surface and the reference surface, while the second support surface primarily serves a positioning function. The V-groove provides better support and positioning for the workpiece, improving the accuracy of workpiece measurement. Furthermore, the tilt of the V-groove's opening towards the first support surface, i.e., towards the operator, enhances the ease of operation for the operator. Attached Figure Description

[0024] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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 these drawings without creative effort.

[0026] Figure 1 This is a perspective view of a multifunctional pneumatic measuring instrument according to an embodiment of the present invention;

[0027] Figure 2 This is a front view of a workpiece according to an embodiment of the present invention;

[0028] Figure 3 This is a right view of a multifunctional pneumatic measuring instrument according to an embodiment of the present invention;

[0029] Figure 4 for Figure 3 A magnified view of a portion of the image;

[0030] Figure 5 This is a perspective view of a multifunctional pneumatic measuring instrument according to an embodiment of the present invention.

[0031] Figure 6 This is a perspective view of a multifunctional pneumatic measuring instrument according to an embodiment of the present invention.

[0032] In the diagram: 1. Workbench; 2. Support mechanism; 21. Bearing component; 22. First support surface; 23. Second support surface; 24. V-groove; 25. Angle; 26. Support part; 3. Measuring component; 31. Measuring surface; 32. Measuring head; 33. Air path; 34. Single-sided air nozzle; 4. TS value measuring mechanism; 41. Fixing component; 42. Displacement sensor; 43. Test point; 5. Workpiece; 51. Long axis; 52. Short axis; 53. Eccentric shaft; 54. First axis. Detailed Implementation

[0033] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0034] This embodiment provides a multifunctional pneumatic measuring instrument capable of measuring the dimensions of a workpiece 5 using a comparative measurement method. The pneumatic measuring instrument includes an air supply unit, a main unit, and a measuring device. The air supply unit supplies compressed gas and is connected to the main unit. The main unit has a display unit that displays the measurement results for the workpiece 5. The measuring device is connected to the main unit, and the compressed gas is ejected from the air passage 33 of the measuring head 32 via the main unit. The specific structures of the air supply unit and the main unit can be found in existing technology.

[0035] See appendix Figure 1 Appendix Figure 2 As shown, the multifunctional pneumatic measuring instrument in this embodiment is used to measure the diameter, coaxiality, and TS value of workpiece 5. Workpiece 5 includes a major shaft 51, an eccentric shaft 53, and a minor shaft 52 connected in sequence. The multifunctional pneumatic measuring instrument can simultaneously measure the diameter of the major shaft 51, the diameter of the minor shaft 52, the coaxiality, and the TS value of the workpiece, thus improving the testing efficiency of workpiece 5.

[0036] The measuring device includes a worktable 1, on which a support mechanism 2 is provided. The support mechanism 2 includes multiple bearing members 21, which are arranged sequentially along the length of the workpiece 5. The bearing members 21 can support the long axis 51 and short axis 52 of the workpiece 5. When the workpiece 5 is supported and measured, it can rotate around the first axis 54 of the workpiece 5.

[0037] See appendix Figure 3 and attached Figure 4As shown, in some embodiments, the support member 21 is provided with two symmetrically arranged support surfaces, including a first support surface 22 and a second support surface 23. The first support surface 22 and the second support surface 23 form a V-groove 24 with an included angle of 90°. The support surface is provided with a support part 26 made of hard alloy for supporting the workpiece 5.

[0038] In some embodiments, the included angle 25 formed by the first support surface 22 and the horizontal worktable 1 is 10~40°. Compared to the conventional arrangement where the first support surface 22 and the second support surface 23 are symmetrically arranged in the vertical direction, the included angle between the first support surface 22 and the horizontal worktable 1 is 45°. The first support surface 22 and the second support surface 23 share the pressure of the workpiece 5 equally. This application, by tilting the first support surface 22 and the second support surface 23 as a whole towards the first support surface 22, makes the opening of the V-groove 24 tilt towards the first support surface 22. On the one hand, this makes the first support surface 22 the primary support surface and the reference surface, while the second support surface 23 mainly serves a positioning function. The V-groove 24 provides better support and positioning for the workpiece 5, improving the accuracy of workpiece 5 measurement. On the other hand, the opening of the V-groove 24 tilts towards the first support surface 22, i.e., towards the operator, improving the convenience of operation for the operator.

[0039] Since the first support surface 22 (reference surface) is tilted to one side, in order to ensure that the test point 43 of the displacement sensor is perpendicular to the reference surface, the TS value measuring mechanism 4 is tilted in the same direction as a whole, that is, the TS value measuring value is rotated in the vertical direction as a whole, making the overall structure of the pneumatic measuring instrument compact and reducing the horizontal space occupied by the pneumatic measuring instrument.

[0040] In some embodiments, the included angle 25 formed by the first support surface 22 and the horizontal worktable 1 is 10~20°, preferably 15°. Tests have shown that when the included angle 25 formed by the first support surface 22 and the horizontal worktable 1 is 15°, that is, when the opening of the V-groove 24 is inclined at 30° towards the first support surface 22, the V-groove 24 provides better support and positioning for the workpiece 5, the pneumatic measuring instrument has the highest accuracy in measuring the workpiece 5, and it is also beneficial for operators.

[0041] See appendix Figure 5 and attached Figure 6As shown, in some embodiments, a measuring element 3 is provided on the carrier 21. The measuring element 3 includes a measuring surface 31, which is located on the side of the measuring element 3 close to the workpiece 5 and parallel to the first support surface 22. They are located on two sides of the workpiece 5, respectively. Both the measuring element 3 and the first support surface 22 are provided with air outlets connected to the air passage 33. A pair of diameter measuring heads 32 are respectively provided in the air outlets of the measuring surface 31 and the first support surface 22, so that the measuring points of the two diameter measuring heads 32 pass through the center of the workpiece 5. In this way, the diameter of the major axis 51 and the diameter of the minor axis 52 can be measured in conjunction with the pneumatic measuring instrument.

[0042] In some embodiments, the diameter measuring head 32 is a nozzle having a straight nozzle extending along the first axis 54 of the workpiece 5. The line connecting a pair of straight nozzles located on the measuring surface 31 and the first support surface 22 passes through the first axis 54 of the workpiece 5, thereby realizing the measurement of the diameter.

[0043] In some embodiments, a single-sided air nozzle 34 is also provided on the measuring component 3. The single-sided air nozzle 34 is located on one side of the diameter measuring head 32. The single-sided air nozzle 34 also has a straight nozzle extending along the first axis 54 of the workpiece 5. During the rotation of the workpiece 5, the coaxiality can be calculated by the pneumatic measuring instrument by testing the maximum and minimum values ​​of the distance from the single-sided air nozzle 34 to the workpiece 5. By providing a single-sided air nozzle 34 on the measuring component 3, the coaxiality of the workpiece 5 can be measured simultaneously when measuring the radius of the major axis 51 or the minor axis 52, thereby improving testing efficiency.

[0044] In some embodiments, the pneumatic gauge further includes a TS value measuring mechanism 4, which is disposed on one side of the second support surface 23. The TS value measuring mechanism 4 includes a fixing member 41 disposed on the support mechanism 2, and a displacement sensor 42 is disposed on the fixing member 41. The extension line of the test point 43 of the displacement sensor 42 passes through the first axis 54 of the workpiece 5. During the rotation of the workpiece 5, the displacement sensor 42 is compressed to a maximum value by the eccentric shaft 53, and this value is the TS value to be measured.

[0045] In some embodiments, the extension line of the test point 43 of the displacement sensor 42 is perpendicular to the first support surface 22 (reference surface). The TS value measuring mechanism 4 measures the TS value of the workpiece 5 most accurately when the extension line of the test point 43 of the displacement sensor 42 passes through the first axis 54 of the workpiece 5 and is perpendicular to the reference surface.

[0046] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

[0047] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0048] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A multifunctional pneumatic measuring instrument, comprising an air supply unit and a main unit, The gas supply unit is capable of supplying compressed gas and is connected to the main unit; The host has a display unit that can display the measurement results of the workpiece (5); Its characteristic is that it further includes: Support mechanism (2), which is capable of supporting the long axis (51) and short axis (52) of the workpiece (5), which is capable of rotating about the first axis (54); The measuring component (3) includes diameter measuring heads (32) disposed on both sides of the workpiece (5), and the diameter measuring heads (32) can measure the diameter of the workpiece (5); The TS value measuring mechanism (4) is fixedly connected to the support mechanism (2) and is set on one side of the workpiece (5). The TS value measuring mechanism (4) can measure the TS value of the workpiece (5).

2. The multifunctional pneumatic measuring instrument according to claim 1, characterized in that, The support mechanism (2) includes a carrier (21), which includes two symmetrically arranged support surfaces, namely a first support surface (22) and a second support surface (23). The first support surface (22) and the second support surface (23) form a V-groove (24) with an included angle (25) of 90°. The included angle (25) formed by the first support surface (22) and the horizontal plane is 10~40°.

3. The multifunctional pneumatic measuring instrument according to claim 2, characterized in that, The angle (25) formed by the first support surface (22) and the horizontal plane is 10~20°.

4. The multifunctional pneumatic measuring instrument according to claim 3, characterized in that, The angle (25) formed by the first support surface (22) and the horizontal plane is 15°.

5. The multifunctional pneumatic measuring instrument according to claim 2, characterized in that, The TS value measuring mechanism (4) includes a fixing member (41) and a displacement sensor (42) disposed on the fixing member (41). The test point (43) of the displacement sensor (42) abuts against the eccentric shaft (53) of the workpiece (5), and the extension line of the test point (43) passes through the first axis (54) of the workpiece (5). During the rotation of the workpiece (5) around the first axis (54), the displacement sensor (42) can be compressed by the eccentric shaft (53).

6. The multifunctional pneumatic measuring instrument according to claim 5, characterized in that, The extension line of the test point (43) of the displacement sensor (42) is perpendicular to the first support surface (22).

7. The multifunctional pneumatic measuring instrument according to claim 2, characterized in that, A measuring element (3) is provided on the carrier (21). The measuring element (3) includes a measuring surface (31). The measuring surface (31) is located on one side of the measuring element (3) near the workpiece (5). The measuring surface (31) and the first support surface (22) are arranged in parallel. An air outlet connected to the air passage (33) is provided on both the measuring element (3) and the first support surface (22). A pair of diameter measuring heads (32) are respectively arranged in the air outlets of the measuring surface (31) and the first support surface (22). The line connecting the measuring points of the two diameter measuring heads (32) passes through the first axis (54) of the workpiece (5).

8. The multifunctional pneumatic measuring instrument according to claim 7, characterized in that, The support mechanism includes at least two support members (21), which support the long axis (51) and short axis (52) of the workpiece (5) respectively. The measuring member (3) set on the support member (21) can test the diameter of the long axis (51) and short axis (52) respectively.

9. The multifunctional pneumatic measuring instrument according to claim 7, characterized in that, The diameter measuring head (32) is a nozzle, which has a straight nozzle extending along the first axis (54) of the workpiece (5), and the line connecting a pair of the straight nozzles passes through the first axis (54) of the workpiece (5).

10. The multifunctional pneumatic measuring instrument according to claim 7, characterized in that, The measuring component (3) also includes a single-sided nozzle (34), which is located on one side of the diameter measuring head (32). The single-sided nozzle (34) also has a straight nozzle extending along the first axis (54) of the workpiece (5). The direction of the gas ejected by the single-sided nozzle (34) is the same as that of the gas ejected by the diameter measuring head (32).

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