Prism measuring jig

Abstract

The utility model relates to the technical field of image measurement, and discloses a prism measuring jig. The prism measuring jig comprises a main body frame, a supporting rib and a limiting assembly, the main body frame is provided with a detection cavity, and a plurality of prisms are arranged around the detection cavity and located on the main body frame; the plurality of supporting ribs are located in the detection cavity, and the supporting ribs are used for supporting the detected workpiece; the limiting assemblies are arranged at the two ends of the prism and comprise limiting bases and limiting blocks rotationally installed on the limiting bases. According to the prism measuring jig, the prism can be replaced more quickly and conveniently, on the other hand, the prism measuring jig can be compatible with installation and use of a short-size prism, and the applicability of the prism measuring jig is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of image measurement, in particular to a prism measuring jig. Background Art

[0002] Image measurement is a comprehensive measurement technology based on modern optics, optoelectronics, computer graphics, information processing, and computer vision. It analyzes images of objects to obtain the required measurement information and is widely used in almost all fields. Due to its rapid, direct, and accurate nature, image measurement has led to continuous improvements in automated image measurement instruments.

[0003] Conventional image measurement equipment can only measure one surface of a workpiece at a time, and cannot simultaneously measure other surfaces. For workpieces of the same specifications, measuring them requires constant adjustment of the inspection surface, testing each surface individually, which takes significantly longer.

[0004] The existing Chinese utility model patent with the announcement number CN205991778U describes a multi-faceted imaging rapid measurement fixture. Although this multi-faceted imaging rapid measurement fixture uses prisms to achieve imaging measurement of multiple faces of the workpiece, solving the time-consuming problem of the existing technology requiring constant adjustment of the workpiece detection surface; however, when replacing the prism, the locking blocks at both ends of the prism need to be removed, resulting in cumbersome prism replacement work and the structure is not compatible with the installation of short-sized prisms.

[0005] Therefore, a prism measuring fixture is urgently needed to solve the above problems. Utility Model Content

[0006] Based on the above, the purpose of the present invention is to provide a prism measuring fixture to solve the problem that the multi-faceted imaging rapid measurement fixture in the background technology requires the disassembly of the locking block, resulting in cumbersome prism replacement work and is incompatible with the installation of short-sized prisms.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] The utility model provides a prism measuring jig, comprising:

[0009] A main frame, wherein the main frame is provided with a detection cavity, and a plurality of prisms are provided surrounding the detection cavity and located on the main frame;

[0010] A plurality of support ribs are provided and located in the detection cavity, and the support ribs are used to support the detection workpiece;

[0011] The limiting assembly is arranged at both ends of the prism and comprises a limiting seat and a limiting block rotatably mounted on the limiting seat.

[0012] As an optional technical solution for a prism measuring jig, a limit plate is installed between the two limit assemblies on the same axis, and the limit plate is installed on a side of the limit seat away from the limit block.

[0013] As an optional technical solution for a prism measuring jig, the limit seat has a right triangle or rectangular cross-section, and the limit block is rotatably mounted on a longer side surface of the limit seat.

[0014] As an optional technical solution for a prism measuring fixture, the prism has a right triangle or rectangular cross-section.

[0015] As an optional technical solution for a prism measuring jig, a plurality of support ribs are arranged parallel to each other in the detection cavity, and two ends of the support ribs are respectively connected to the longer two side frames of the main frame.

[0016] As an optional technical solution for a prism measuring fixture, a raised portion is provided around the detection cavity, and a plurality of first positioning holes are provided in one length direction and one width direction of the raised portion, and positioning posts are inserted into the first positioning holes.

[0017] As an optional technical solution of the prism measuring jig, a second positioning hole is provided at one end of the support rib away from the first positioning hole in the length direction of the protrusion.

[0018] As an optional technical solution for a prism measuring jig, mounting portions are provided at both ends of the main frame in the width direction, and adjustable mounting slots are provided on the mounting portions.

[0019] The beneficial effects of the utility model are:

[0020] The utility model provides a prism measuring jig, comprising: a main frame, support ribs, and a limit assembly. The main frame is provided with a detection cavity, and a plurality of prisms are disposed on the main frame and surround the detection cavity. A plurality of support ribs are provided and located within the detection cavity, and the support ribs are used to support the detection workpiece. The limit assembly is disposed at both ends of the prism and includes a limit seat and a limit block rotatably mounted on the limit seat. The prism measuring jig locks and unlocks the prism by rotating the limit block on the limit seat, making prism replacement faster and more convenient. Furthermore, a limit plate is provided between two limit seats on the same axis, so that when a short prism is installed, the limit plate can limit the short prism, thereby increasing the applicability of the prism measuring jig. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1This is a schematic diagram of the overall structure of the prism measuring fixture in an embodiment of the present utility model;

[0022] Figure 2 This is an exploded schematic diagram of a prism measuring jig in an embodiment of the present utility model;

[0023] Figure 3 for Figure 2 A magnified schematic diagram of point A in the middle;

[0024] Figure 4 It is a structural diagram of the main frame in an embodiment of the present utility model.

[0025] In the picture:

[0026] 1. Main frame; 10. Detection cavity; 11. Prism; 12. Raised portion; 121. First positioning hole; 13. Positioning post;

[0027] 2. Support rib; 20. Second positioning hole;

[0028] 3. Limit assembly; 30. Limit seat; 31. Limit block; 32. Limit plate; 33. Adjustment hole; 34. Mounting hole; 35. Fixing hole;

[0029] 4. Mounting portion; 40. Mounting slot. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0031] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0032] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0033] In the description of this embodiment, the terms "up", "down", "left", "right" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0034] In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0035] like Figure 1-4 As shown, the utility model provides a prism 11 measuring jig, which includes: a main frame 1, the main frame 1 is provided with a detection cavity 10, and a plurality of prisms 11 are provided around the detection cavity 10 and located on the main frame 1; a plurality of support ribs 2 are provided and located in the detection cavity 10, and the support ribs 2 are used to support the detection workpiece; a limit assembly 3 is provided at both ends of the prism 11, including a limit seat 30 and a limit block 31 rotatably mounted on the limit seat 30.

[0036] The utility model provides a prism 11 measuring jig that locks and unlocks the prism 11 by rotating the limit block 31 on the limit seat 30, so that the prism 11 measuring jig is faster and more convenient when replacing the prism 11. On the other hand, a limit plate 32 is provided between the two limit seats 30 on the same axis so that when the prism 11 measuring jig is installed with a short prism 11, the limit plate 32 can limit the short prism 11, thereby increasing the applicability of the prism 11 measuring jig.

[0037] Specifically, such as Figure 1As shown, the main frame 1 in this embodiment is of a rectangular structure, and both ends of the main frame 1 in the width direction extend outward to form a mounting portion 4. Two elongated mounting grooves 40 are provided on the mounting portion 4 at each end. The prism 11 measuring jig is installed in a designated position on the measuring equipment through the mounting grooves 40. Since the mounting grooves 40 are in the shape of elongated strips, the prism 11 measuring jig can be adjusted in position at the position of the measuring equipment, thereby increasing the scalability of the prism 11 measuring jig.

[0038] Further, such as Figure 4 As shown, the detection cavity 10 is rectangular and is arranged in the main frame 1. A raised portion 12 is arranged around the detection cavity 10. The first ends of the four raised portions 12 are connected, and a plurality of first positioning holes 121 are provided on the raised portions 12 in one length direction and one width direction. Positioning posts 13 are inserted into the first positioning holes 121. By adjusting the positioning posts 13 in the longitudinal and transverse directions in the first positioning holes 121, the range between the positioning posts 13 can be shortened or expanded, thereby positioning workpieces of different sizes to be inspected, thereby increasing the applicability of the prism 11 measuring fixture; the support ribs 2 are provided with multiple, preferably Three support ribs 2 are provided, each parallel to the other within the inspection chamber 10, with each end of the support rib 2 connected to the longitudinal frame of the main frame 1. The support ribs 2, raised portion 12, and main frame 1 form an integrally formed structure, increasing the stability of the prism 11 measuring jig. The multiple parallel support ribs 2 enable the prism 11 measuring jig to handle the measurement of workpieces of varying specifications. This eliminates the cumbersome operation of the prior art, which requires disassembling the support ribs 2 to adjust the spacing between the multiple support ribs 2 to match the workpieces being inspected. This increases the measurement efficiency of the prism 11 measuring jig. A second positioning hole 20 is provided at one end of the support rib 2, distal from the first positioning hole 121 along the longitudinal direction of the raised portion 12. A positioning post 13 can be inserted into the second positioning hole 20 according to the size and specification of the workpiece being inspected. This can then be used in conjunction with the positioning post 13 inserted in the first positioning hole 121 to accommodate workpieces of varying specifications, further expanding the applicability of the prism 11 measuring jig.

[0039] In this embodiment, if Figure 2 As shown, the limit assembly 3 is installed on the main frame 1 at both ends of the prism 11, and a limit plate 32 is installed between the two limit assemblies 3 on the same axis. The limit plate 32 is installed on the side of the limit seat 30 away from the limit block 31. A step is formed between the protrusion 12 and the frame of the main frame 1. Therefore, a receiving cavity for placing the prism 11 is formed between the limit plate 32 and the protrusion 12. When some prisms 11 of different lengths and sizes are placed, the limit plate 32 and the protrusion 12 can limit the prism 11 to prevent the prism 11 from displacement.

[0040] Specifically, such as Figure 3As shown, the limit assembly 3 includes a limit seat 30 and a limit block 31. The limit seat 30 has a right triangle or rectangular cross-section. In this embodiment, the cross-section of the limit seat 30 is preferably a right triangle structure. A fixing hole 35 is provided on the vertical side of the limit seat 30, and the limit plate 32 is fixed to the limit seat 30 by locking the screw with the fixing hole 35. An adjustment hole 33 and a mounting hole 34 are provided on the longer side of the limit seat 30. The limit block 31 is arranged on the longer side of the limit seat 30 by rotating the screw and the adjustment hole 33, and one end of the limit block 31 extends toward the other limit seat 30. The extension length can be selected according to the workpiece to be detected to ensure that the prism 11 can also be locked when installing some shorter prisms 11; the mounting hole 34 is used to fix the limit assembly 3 to the main frame 1 to increase its stability.

[0041] The prism 11 measuring jig provided by the present invention can install prisms 11 of different lengths through the limit assembly 3, the limit plate 32 and a plurality of parallel support ribs 2, so that when measuring workpieces of different sizes, there is no need to replace the jig or disassemble the support ribs 2 to adjust their positions; on the other hand, when replacing the prism 11, the prism 11 can be taken and placed by directly rotating the limit block 31, which is convenient for operation and increases the operational convenience of the prism 11 measuring jig; the cross-section of the prism 11 used in this embodiment is preferably a right triangle or rectangular structure.

[0042] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention is disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of the above-disclosed technical contents without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technology of the present invention, which do not depart from the content of the technical solution of the present invention, are within the scope of the technical solution of the present invention.

Claims

1. A prism measuring fixture, characterized in that: include: A main frame, wherein the main frame is provided with a detection cavity, and a plurality of prisms are provided surrounding the detection cavity and located on the main frame; A plurality of support ribs are provided and located in the detection cavity, and the support ribs are used to support the detection workpiece; The limiting assembly is arranged at both ends of the prism and comprises a limiting seat and a limiting block rotatably mounted on the limiting seat.

2. The prism measuring fixture according to claim 1, characterized in that: A limiting plate is installed between the two limiting assemblies on the same axis, and the limiting plate is installed on a side of the limiting seat away from the limiting block.

3. The prism measuring jig according to claim 1, characterized in that: The limiting seat has a right triangle or rectangular cross section, and the limiting block is rotatably mounted on a longer side surface of the limiting seat.

4. The prism measuring jig according to claim 3, characterized in that: The prism has a right triangle or rectangular cross section.

5. The prism measuring jig according to claim 1, characterized in that: A plurality of support ribs are arranged in parallel with each other in the detection cavity, and two ends of the support ribs are respectively connected to the longer two side frames of the main frame.

6. The prism measuring jig according to claim 5, characterized in that: A protrusion is provided around the detection cavity, and a plurality of first positioning holes are provided in one length direction and one width direction of the protrusion, and positioning posts are inserted into the first positioning holes.

7. The prism measuring jig according to claim 6, characterized in that: A second positioning hole is provided at one end of the support rib away from the first positioning hole in the length direction of the protrusion.

8. The prism measuring jig according to claim 1, characterized in that: Mounting parts are provided at both ends of the main frame in the width direction, and adjustable mounting grooves are provided on the mounting parts.

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