Aperture measuring device

Abstract

The utility model discloses a hole diameter measuring device which comprises a machine table, a servo rotating platform, a hole site recognition mechanism and a hole diameter measuring mechanism. The servo rotating platform is arranged in the middle of the upper portion of the machine table, and a jig used for fixing a to-be-tested piece is arranged on the servo rotating platform. The hole site recognition mechanism comprises a CCD recognition camera erected in the middle of the upper portion of the machine table. The aperture measuring mechanism comprises a moving driving module arranged on one side of the machine table, an inverted-L-shaped rack connected to the moving driving module, and an indexing rotating platform arranged below the transverse part of the inverted-L-shaped rack. The indexing rotating platform is arranged on the base, the lifting driving modules are arranged on the edge of the indexing rotating platform in an annular array mode, and the measuring heads are arranged on the lifting modules respectively and used for detecting different hole diameters, so that the positions of all installation holes of a to-be-detected piece can be automatically recognized, and different measuring heads can be switched to detect the to-be-detected piece in sequence; the aperture measuring device achieves functions which cannot be achieved by an aperture measuring device in the prior art, and is high in working efficiency, time-saving and labor-saving.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of detection equipment, and discloses a hole diameter measuring device. BACKGROUND

[0002] The crane is a mechanical device for cargo handling, and can complete processes such as material taking, moving and unloading, and is widely applied to places such as ports, wharfs, shipyards and hydropower station sites. The crane is a kind of hoisting machinery with the widest application range and the largest number. The outer edges of some crane components are provided with a plurality of mounting holes with different sizes. In order to ensure subsequent installation, the hole diameter needs to be detected. The hole diameter measuring device in the prior art can generally only detect the inner diameter of mounting holes with a set size, and cannot be used when the crane component has a plurality of mounting holes with different sizes. In order to solve the above problem, the application discloses a hole diameter measuring device. CONTENT OF THE UTILITY MODEL

[0003] In order to overcome the defects of the prior art, the application discloses a hole diameter measuring device, which comprises a machine table, a servo rotating platform, a hole position recognition mechanism and a hole diameter measuring mechanism.

[0004] The servo rotating platform is arranged above the upper middle part of the machine table, and a jig for fixing a to-be-detected piece is arranged on the servo rotating platform.

[0005] The hole position recognition mechanism comprises a CCD recognition camera arranged above the upper middle part of the machine table.

[0006] The hole diameter measuring mechanism comprises a moving drive module arranged on one side of the machine table, an inverted L-shaped rack connected to the moving drive module, a dividing rotating platform arranged below the transverse part of the inverted L-shaped rack, a plurality of lifting drive modules arranged in a ring array on the edge of the dividing rotating platform, and a plurality of measuring heads arranged on the plurality of lifting modules for detecting different hole diameters.

[0007] Further preferably, the jig comprises a base, a plurality of supporting blocks distributed on the base according to the shape of the to-be-detected piece, and a plurality of pressing assemblies distributed on the base according to the shape of the to-be-detected piece.

[0008] Further preferably, the pressing assembly comprises a guide rod arranged on the base, a pressing plate inserted on the guide rod through a guide hole, a through hole arranged on the pressing plate, a screw rod arranged on the base through the through hole, and a nut screwed on the top of the screw rod above the pressing plate.

[0009] Further preferably, the supporting block is provided with an L-shaped notch on one side for supporting the to-be-detected piece.

[0010] Further preferably, the upper part of the machine table is provided with a machine box, and the CCD recognition camera is arranged below the middle part of the machine box.

[0011] Further preferably, the CCD recognition camera is provided with a large field lens, and the outer ring of the CCD recognition camera is further provided with a ring light source.

[0012] To achieve the above object, the technical scheme adopted by the present application is as follows:

[0013] The present application has the following beneficial effects:

[0014] The present application can automatically identify the positions of the mounting holes of the measured object, and can switch different measuring heads to detect the mounting holes in sequence, thus achieving the function that cannot be realized by the hole diameter measuring device in the prior art, and the work efficiency is high, time and labor are saved.

[0015] Other features and advantages of the present application will be described in the following description, and some will become apparent from the description, or will be understood by those skilled in the art through implementation of the present application. The purpose and other advantages of the present application can be achieved and obtained by the structure indicated in the specification and the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings incorporated into the specification and forming part of the specification, show embodiments consistent with the present disclosure, and together with the specification serve to explain the principles of the present disclosure.

[0017] Fig. 1 is a schematic diagram of the overall structure of the present application;

[0018] Fig. 2 is a schematic diagram of the hole position recognition mechanism of the present application;

[0019] Fig. 3 is a schematic diagram of the jig structure of the present application;

[0020] In the drawings: 10, machine table; 20, servo rotary platform; 30, hole position recognition mechanism; 31, CCD recognition camera; 311, large field lens; 312, ring light source; 40, hole diameter measuring mechanism; 41, moving drive module; 42, inverted L-shaped rack; 43, indexing rotary platform; 44, lifting drive module; 45, measuring head; 50, jig; 51, base; 52, supporting block; 521, L-shaped notch; 53, pressing assembly; 531, guide rod; 532, pressing plate; 5321, guide hole; 5322, via hole; 534, nut; 60, machine case. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0022] In the description of this application, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the component or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0023] Example

[0024] To address the limitation of existing aperture measuring devices that can only measure products with a single aperture size and determine their conformity, reference is made to... Figs. 1-3 As shown, this application provides the following technical solution: an aperture measuring device, including a machine base 10, a servo rotary platform 20, a hole position identification mechanism 30 and an aperture measuring mechanism 40, wherein the hole position identification mechanism 30 is used to identify the shape of the entire workpiece to be measured and determine the location of each different size mounting hole, and the aperture measuring mechanism 40 is used to measure whether the aperture of each different size mounting hole meets the set requirements, thereby meeting the needs of later use;

[0025] The servo rotary platform 20 is located in the upper middle part of the machine base 10, and the servo rotary platform 20 is equipped with a fixture 50 for fixing the workpiece to be tested. In actual use, the operator needs to place the workpiece to be tested on the fixture 50 and fix the workpiece to be tested.

[0026] The hole position recognition mechanism 30 includes a CCD recognition camera 31 mounted on the upper center of the machine base 10. When the workpiece to be tested is fixed on the fixture 50, the CCD recognition camera 31 will take pictures of the workpiece to be tested and calculate the position of each mounting hole of different sizes according to the external system (known technology, not the subject of this application), thereby controlling the servo rotation platform 20 to drive the fixture 50 to rotate by the corresponding angle.

[0027] The aperture measuring mechanism 40 includes a movable drive module 41 disposed on one side of the machine base 10, an inverted L-shaped frame 42 connected to the movable drive module 41, an indexing rotary platform 43 disposed below the transverse portion of the inverted L-shaped frame 42, a plurality of lifting drive modules 44 arranged in a ring array on the edge of the indexing rotary platform 43, and probes 45 disposed on the plurality of lifting modules for detecting different aperture sizes. When a mounting hole is rotated to a set position, the movable drive module 41 drives the inverted L-shaped frame 42 to extend, and the indexing rotary platform 43 drives the plurality of lifting drive modules 44 to rotate to a set angle until the corresponding probe 45 is above the mounting hole to be detected. Then, the lifting drive module 44 drives the probe 45 to descend, thereby measuring the mounting hole to see if it meets the set requirements.

[0028] In one of the specific embodiments, the jig 50 of the present application comprises a base 51, a plurality of supporting blocks 52 distributed on the base 51 according to the shape of the measured member, and a plurality of pressing assemblies 53 distributed on the base 51 according to the shape of the measured member, wherein the pressing assembly 53 comprises a guide rod 531 arranged on the base 51, a pressing plate 532 inserted on the guide rod 531 through a guide hole 5321, a through hole 5322 arranged on the pressing plate 532, a screw rod arranged on the base 51 through the through hole 5322, and a nut 534 screwed on the top of the screw rod above the pressing plate 532, the L-shaped notch 521 is arranged on one side of the supporting block 52 for supporting the measured member, when the measured member is fixed, the operator or the crane carries the measured member above the plurality of supporting blocks 52 and positions the measured member through the L-shaped notches 521 on the plurality of supporting blocks 52, then, the nuts 534 on the top of each screw rod are screwed down in sequence until the pressing plate 532 is lowered and presses the edge of the measured member.

[0029] In one of the specific embodiments, the machine 10 of the present application is provided with a machine box 60 above the machine 10, the CCD recognition camera 31 is arranged below the middle of the machine box 60, and the CCD recognition camera 31 is provided with a large field of view lens 311, and the outer ring of the CCD recognition camera 31 is further provided with a ring-shaped light source 312, in this embodiment, not only the fixation of the CCD recognition camera 31 is realized, but also the full view of the measured member can be photographed by installing the large field of view lens 311 on the CCD recognition camera 31, and the CCD recognition camera 31 can clearly photograph the measured member by sleeving the ring-shaped light source 312 on the outer ring of the CCD recognition camera 31.

[0030] It is emphasized below that all the components involved in the present application can be directly obtained on the market, and will not be described in detail here.

[0031] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0032] The above embodiments are only for illustrating the technical concept and characteristics of the present application, the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any equivalent transformation or modification made according to the spirit and essence of the present application should be covered within the protection scope of the present application.

Claims

1. An aperture measuring device, characterized by, The machine table (10), the servo rotating platform (20), the hole position recognition mechanism (30) and the hole diameter measuring mechanism (40) are included. The servo rotating platform (20) is arranged above the middle part of the machine table (10), and a jig (50) for fixing the measured member is arranged on the servo rotating platform (20). The hole position recognition mechanism (30) includes a CCD recognition camera (31) arranged above the middle part of the machine table (10). The hole diameter measuring mechanism (40) includes a moving drive module (41) arranged on one side of the machine table (10), a reverse L-shaped rack (42) connected to the moving drive module (41), a indexing rotating platform (43) arranged below the horizontal part of the reverse L-shaped rack (42), a plurality of lifting drive modules (44) arranged in an annular array on the edge of the indexing rotating platform (43), and a plurality of measuring heads (45) arranged on the lifting drive modules (44) for detecting different hole diameters.

2. An aperture measuring device according to claim 1, wherein The jig (50) includes a base (51), a plurality of supporting blocks (52) arranged on the base (51) according to the shape of the measured member, and a plurality of pressing assemblies (53) arranged on the base (51) according to the shape of the measured member.

3. An apparatus for measuring an aperture according to claim 2, wherein The pressing assembly (53) includes a guide rod (531) arranged on the base (51), a pressing plate (532) inserted on the guide rod (531) through a guide hole (5321), a through hole (5322) formed on the pressing plate (532), a screw rod arranged on the base (51) through the through hole (5322), and a nut (534) screwed on the top of the screw rod above the pressing plate (532).

4. An apparatus for measuring an aperture according to claim 2, wherein The supporting block (52) is provided with an L-shaped notch (521) on one side for supporting the measured member.

5. An apparatus for measuring an aperture according to claim 1, wherein The machine table (10) is provided with a machine box (60), and the CCD recognition camera (31) is arranged below the middle part of the machine box (60).

6. An apparatus for measuring an aperture according to claim 5, wherein A large field lens (311) is mounted on the CCD recognition camera (31), and a ring-shaped light source (312) is further arranged on the outer ring of the CCD recognition camera (31).

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