CN218238606U - Verticality form and position tolerance measuring device for large parts - Google Patents
Verticality form and position tolerance measuring device for large parts Download PDFInfo
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- CN218238606U CN218238606U CN202221598023.3U CN202221598023U CN218238606U CN 218238606 U CN218238606 U CN 218238606U CN 202221598023 U CN202221598023 U CN 202221598023U CN 218238606 U CN218238606 U CN 218238606U
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Abstract
The utility model discloses a straightness geometric tolerances measuring device hangs down for large-scale part, including handle and measuring mechanism, the lower extreme of handle is provided with the fixed plate, measuring mechanism sets up on the lower terminal surface of fixed plate, measuring mechanism is including first elastomer, second elastomer, measuring component, transition round pin and digital display amesdial, the both sides of fixed plate lower terminal surface are provided with first elastomer and second elastomer respectively, the lower extreme of first elastomer and second elastomer is provided with measuring component respectively, be provided with the transition round pin on the first elastomer, be provided with the digital display amesdial on the second elastomer; the utility model discloses simple structure, reasonable in design through rotatory measuring device round, can high-efficient, swiftly measure the straightness that hangs down of major diameter jumbo size part to can guarantee in the measurement process with the measurand part with the axle center, stable performance, measure accurate, be suitable for the measurement of the straightness form and position tolerance that hangs down of major diameter jumbo size part.
Description
Technical Field
The utility model relates to a large-scale part measuring equipment technical field specifically is a straightness geometric tolerances measuring device hangs down for large-scale part.
Background
With the rapid development of machinery manufacturing in China and the updating iteration of automobiles, the requirements on the detection precision, form and position tolerance, detection efficiency and the like of a produced product are higher and higher, particularly the requirements on the product life cycle are shorter and shorter, and the measurement requirements on high efficiency, convenience and simplicity are higher and higher.
The defects of the prior art are as follows:
the conventional detection means such as three-coordinate cannot meet the requirements of efficient and rapid measurement of parts. Due to the particularity of large volume, the measurement difficulty is relatively high, and the operation is not easy, so that the field detection requirement on the parts is more and more urgent.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a hang down straightness geometric tolerances measuring device that hangs down for large-scale part to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above purpose, the utility model provides a following technical scheme: a verticality geometric tolerance measuring device for large parts comprises a handle and a measuring mechanism, wherein a fixing plate is arranged at the lower end of the handle, and the measuring mechanism is arranged on the lower end surface of the fixing plate;
the measuring mechanism comprises a first elastic body, a second elastic body, a measuring assembly, a transition pin and a digital display dial indicator, wherein the first elastic body and the second elastic body are arranged on two sides of the lower end face of the fixing plate respectively, the measuring assembly is arranged at the lower end of each of the first elastic body and the second elastic body respectively, the transition pin is arranged on the first elastic body, and the digital display dial indicator is arranged on the second elastic body.
Preferably, the measuring assembly comprises a first elastic sheet, a second elastic sheet, a first measuring head and a second measuring head, the lower ends of the first elastic sheet and the second elastic sheet are respectively provided with the first elastic sheet and the second elastic sheet, the lower ends of the first elastic sheet and the second elastic sheet are respectively provided with the first measuring head and the second measuring head, and the lower end faces of the first elastic sheet and the second elastic sheet are provided with the guide assembly.
Preferably, the guide assembly comprises a guide post, a plurality of springs and a plurality of arc-shaped pieces, the guide post is arranged at the lower end of the first elastic body and the lower end of the second elastic body, the springs are arranged on the outer side face of the upper end of the guide post, and the arc-shaped pieces are arranged at the other end of the springs.
Preferably, the guide column is hollow, and the two sides of the guide column are respectively provided with a first measuring head and a second measuring head matched measuring hole.
Preferably, the second elastic body is provided with a through hole matched with the transition pin, and the transition pin penetrates through the through hole to abut against the digital display dial indicator.
Preferably, the first elastic sheet has a length shorter than that of the second elastic sheet.
Preferably, the outer side surface of the lower end of the arc-shaped piece is provided with an inclined surface.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the verticality geometric tolerance measuring device for the large-size part is provided with a measuring mechanism, wherein the measuring mechanism comprises a first elastic body, a second elastic body, a measuring assembly, a transition pin and a digital display dial indicator, and the verticality of the large-diameter large-size part can be efficiently and quickly measured by rotating the measuring mechanism for one circle;
2. this a straightness form and position tolerance measuring device hangs down for large-scale part through being provided with the direction subassembly, and the direction subassembly can guarantee with the measured part coaxial axle center including guide post, a plurality of spring and a plurality of arc piece in the measurement process, stable performance, measurement accuracy, be suitable for the measurement of the major diameter jumbo size part straightness form and position tolerance that hangs down.
Drawings
Fig. 1 is an overall sectional view of the present invention;
FIG. 2 is an overall front view of the present invention;
fig. 3 is a schematic view of the measuring point of the present invention.
In the figure: 1. a handle; 2. a measuring mechanism; 21. a first elastic body; 22. a second elastomer; 23. a measurement component; 24. a transition pin; 25. a digital display dial gauge; 3. a fixing plate; 4. a first elastic sheet; 5. a second elastic sheet; 6. a first probe; 7. a second probe; 8. a guide post; 81. measuring a hole; 9. a spring; 10. an arc-shaped sheet.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like are used in the orientation or positional relationship indicated on the basis of the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the invention.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixed connections, arrangements, detachable connections, arrangements, or integral connections and arrangements. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1-3, the utility model provides a verticality geometric tolerance measuring device for large parts, which comprises: the utility model provides a straightness geometric tolerance measuring device hangs down for large-scale part, including handle 1 and measuring mechanism 2, fixed plate 3 is installed through the bolt to the lower extreme of handle 1, measuring mechanism 2 installs on the lower terminal surface of fixed plate 3, measuring mechanism 2 is including first elastomer 21, second elastomer 22, measuring component 23, transition round pin 24 and digital display amesdial 25, first elastomer 21 and second elastomer 22 are installed respectively through the bolt to the both sides of fixed plate 3 lower terminal surface, measuring component 23 is installed respectively to the lower extreme of first elastomer 21 and second elastomer 22, install transition round pin 24 through seting up the installation hole site on the first elastomer 21, install digital display amesdial 25 through seting up the installation hole site on the second elastomer 22, in the in-process that detects, the staff holds handle 1, insert measuring mechanism 2 to the inside of being detected the part, measuring component 23 takes place deformation with the inside wall contact of part, thereby drive transition round pin 24 extrudees the measuring end of digital display amesdial 25, obtain the measuring result through digital display amesdial 25.
The measuring assembly 23 comprises a first elastic sheet 4, a second elastic sheet 5, a first measuring head 6 and a second measuring head 7, the lower ends of the first elastic sheet 21 and the second elastic sheet 22 are respectively provided with the first elastic sheet 4 and the second elastic sheet 5 in an integrated manner, the lower ends of the first elastic sheet 4 and the second elastic sheet 5 are respectively embedded with the first measuring head 6 and the second measuring head 7, the lower end faces of the first elastic sheet 21 and the second elastic sheet 22 are provided with the guide assembly, in the measuring process, the first measuring head 6 and the second measuring head 7 are both extruded by the inner side wall of the part to generate deviation, so that the first elastic sheet 4 and the second elastic sheet 5 are driven to generate translation, the first elastic sheet 4 drives the first elastic sheet 21 to translate, the second elastic sheet 5 drives the second elastic sheet 22 to translate, and the measurement is carried out.
The direction subassembly is including guide post 8, a plurality of spring 9 and a plurality of arc piece 10, guide post 8 is installed to the lower extreme of first elastomer 21 and second elastomer 22, install a plurality of spring 9 on the lateral surface of guide post 8 upper end, arc piece 10 is installed to the other end of spring 9, when inserting the part inside, through the elasticity of spring 9, guarantee arc piece 10's lateral surface all the time with the inside wall contact who is detected the part, guarantee guide post 8 and be detected the part coaxial center, guarantee the precision that detects.
The inside of the guide column 8 is hollow, so that the quality of the guide column 8 can be reduced, and the two sides of the guide column 8 are respectively provided with the measuring holes 81 matched with the first measuring head 6 and the second measuring head 7, so that the first measuring head 6 and the second measuring head 7 can be deflected when being subjected to pressure.
Be provided with on the second elastomer 22 with transition round pin 24 assorted through-hole, transition round pin 24 passes the through-hole and contradicts with digital display amesdial 25, can sensitively transmit to digital display amesdial 25 when guaranteeing that first elastomer 21 takes place deformation on.
The length of the first elastic piece 4 is shorter than that of the second elastic piece 5, so that detection of two points can be realized, and perpendicularity can be measured better.
The outer side surface of the lower end of the arc-shaped piece 10 is provided with an inclined surface.
The working principle of the utility model is as follows:
in the embodiment, when the verticality geometric tolerance measuring device for large parts is used, a worker holds the handle 1 and inserts the measuring mechanism 2 into the detected part, in the measuring process, the first measuring head 6 and the second measuring head 7 are extruded by the inner side wall of the part to generate deviation so as to drive the first elastic sheet 4 and the second elastic sheet 5 to translate, the first elastic sheet 4 drives the first elastic body 21 to translate, the second elastic sheet 5 drives the second elastic body 22 to translate, so as to drive the transition pin 24 to extrude the measuring end of the digital display dial indicator 25, a measuring result is obtained through the digital display dial indicator 25, and through calculation simulation analysis, if the inner hole is not vertical, the verticality X is assumed, as shown in fig. 3, A gap between the current positions of a measuring point 1 and a measuring point 2 is 3/4X, the measuring point is rotated for one circle, the plane angle between the measuring point 1 and the measuring point 2 is 180 degrees, the position gap is 1/4X, and the MAX value-MIN value = (3/4X + 3/4X) - (1/4X + 1/4X) = X of the measuring point 1+ the measuring point 2 is inserted into a part, and meanwhile, when the arc-shaped sheet 10 is inserted into the part, the outer side face of the arc-shaped sheet is ensured to be always contacted with the inner side wall of the part to be measured through the elasticity of a spring 9, and the guide column 8 is ensured to be coaxial with the part to be measured.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only the preferred embodiments of the present invention, and is not intended to limit the present invention, and that there may be various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A straightness geometric tolerance measuring device that hangs down for large-scale part, includes handle (1) and measuring mechanism (2), its characterized in that: the lower end of the handle (1) is provided with a fixed plate (3), and the measuring mechanism (2) is arranged on the lower end face of the fixed plate (3);
the measuring mechanism (2) comprises a first elastic body (21), a second elastic body (22), a measuring assembly (23), a transition pin (24) and a digital display dial indicator (25), wherein the first elastic body (21) and the second elastic body (22) are respectively arranged on two sides of the lower end face of the fixing plate (3), the measuring assembly (23) is respectively arranged at the lower ends of the first elastic body (21) and the second elastic body (22), the transition pin (24) is arranged on the first elastic body (21), and the digital display dial indicator (25) is arranged on the second elastic body (22).
2. The perpendicularity form and position tolerance measuring device for large parts according to claim 1, characterized in that: the measuring assembly (23) comprises a first elastic sheet (4), a second elastic sheet (5), a first measuring head (6) and a second measuring head (7), the lower ends of the first elastic body (21) and the second elastic body (22) are respectively provided with the first elastic sheet (4) and the second elastic sheet (5), the lower ends of the first elastic sheet (4) and the second elastic sheet (5) are respectively provided with the first measuring head (6) and the second measuring head (7), and the lower end faces of the first elastic body (21) and the second elastic body (22) are provided with a guide assembly.
3. The verticality form and position tolerance measuring device for large parts according to claim 2, wherein: the direction subassembly is including guide post (8), a plurality of spring (9) and a plurality of arc piece (10), the lower extreme of first elastomer (21) and second elastomer (22) is provided with guide post (8), be provided with a plurality of spring (9) on the lateral surface of guide post (8) upper end, the other end of spring (9) is provided with arc piece (10).
4. The perpendicularity form and position tolerance measuring device for a large part according to claim 3, characterized in that: the inside of guide post (8) sets up to hollow, the both sides of guide post (8) are provided with first gauge head (6) and second gauge head (7) assorted measuring hole (81) respectively.
5. The perpendicularity form and position tolerance measuring device for a large part according to claim 1, characterized in that: the second elastic body (22) is provided with a through hole matched with the transition pin (24), and the transition pin (24) penetrates through the through hole to be abutted against the digital dial indicator (25).
6. The verticality form and position tolerance measuring device for large parts according to claim 2, wherein: the length of the first elastic piece (4) is shorter than that of the second elastic piece (5).
7. The perpendicularity form and position tolerance measuring device for large parts according to claim 3, characterized in that: the outer side surface of the lower end of the arc-shaped sheet (10) is an inclined surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221598023.3U CN218238606U (en) | 2022-06-24 | 2022-06-24 | Verticality form and position tolerance measuring device for large parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221598023.3U CN218238606U (en) | 2022-06-24 | 2022-06-24 | Verticality form and position tolerance measuring device for large parts |
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| CN218238606U true CN218238606U (en) | 2023-01-06 |
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| CN202221598023.3U Active CN218238606U (en) | 2022-06-24 | 2022-06-24 | Verticality form and position tolerance measuring device for large parts |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116399284A (en) * | 2023-06-08 | 2023-07-07 | 山东科技大学 | Device and method for measuring perpendicularity error and error direction angle of surface of part with hole |
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2022
- 2022-06-24 CN CN202221598023.3U patent/CN218238606U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116399284A (en) * | 2023-06-08 | 2023-07-07 | 山东科技大学 | Device and method for measuring perpendicularity error and error direction angle of surface of part with hole |
| CN116399284B (en) * | 2023-06-08 | 2023-08-22 | 山东科技大学 | Device and method for measuring perpendicularity error and error direction angle of surface of part with hole |
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