CN220339334U - Automatic measuring equipment - Google Patents

Abstract

The utility model relates to the field of measuring equipment, in particular to automatic measuring equipment, which comprises a base, a lifting mechanism, a centering clamping mechanism and a conveying mechanism, wherein the centering clamping mechanism comprises a connecting piece, a first measuring piece and a second measuring piece, the connecting piece is movably connected to the lifting mechanism along the vertical direction, and the first measuring piece and the second measuring piece are movably connected to the connecting piece along the horizontal direction; the conveying mechanism is connected to the working platform and is positioned below the centering clamping mechanism, a conveying station is formed on the conveying mechanism, and the conveying station is used for placing a piece to be measured; the whole measuring process is high in automation degree, high in measuring efficiency and measuring precision, low in labor intensity of operators, capable of reducing false detection and missed detection probability and capable of reducing the skill and quality requirements of the inspectors.

Description

Automatic measuring equipment

Technical Field

The utility model belongs to the technical field of measuring equipment, and particularly relates to automatic measuring equipment.

Background

Aero-engines are the heart of aircraft, and aero-engine blades are important parts of the engine, and the processing quality of the aero-engine blades has a great influence on the quality, safety and reliability of the aircraft engine. The engine blade has a complex structure and extremely high machining precision, so that after the engine blade is manufactured, measurement and inspection of some important dimensions of the engine blade are required.

For a longitudinal tree-shaped tenon on an engine blade, the use amount is required to measure and test the cross-section width dimension of the tenon.

For measuring the size of the tenon teeth on the tenon, the existing measuring method in the industry is to manually place the measuring pin in the measured tenon teeth of the tenon, so that the working face of the measuring pin and the tenon teeth are tangential to a node bus, and simultaneously, manually measure the measuring rod distance by using a micrometer or a vernier caliper.

Manual measurement has strict requirements on the concentration of inspection staff, low inspection efficiency, high labor intensity and high risks of false detection and missing detection.

Disclosure of Invention

The utility model aims to provide automatic measuring equipment so as to solve the problems that an existing tenon waiting measuring piece in the prior art depends on manpower in the size inspection process, the inspection efficiency is low, the professional requirements on technicians are high, the inspection labor intensity is high, the inspection structure precision is poor and the like.

In order to achieve the aim of the utility model, the utility model is realized by adopting the following technical scheme:

the utility model proposes an automatic measuring device comprising:

a base on which a work platform is formed;

the lifting mechanism is arranged on the working platform;

the centering clamping mechanism comprises a connecting piece, a first measuring piece and a second measuring piece, wherein the connecting piece is movably connected to the lifting mechanism along the vertical direction, and the first measuring piece and the second measuring piece are movably connected to the connecting piece along the horizontal direction; a measuring station is formed between the first measuring piece and the second measuring piece;

the conveying mechanism is connected to the working platform and located below the centering clamping mechanism, and a conveying station is formed on the conveying mechanism and used for placing a piece to be measured.

In some embodiments of the present application, the device further includes a supporting mechanism, which is disposed on the working platform in a liftable manner, and is located below the measuring station, and is used for supporting the part to be measured that moves below the measuring station.

In some embodiments of the present application, a clamping driving member is disposed on the connecting member, an output end of the clamping driving member is provided with a rotating shaft, a first threaded section and a second threaded section with opposite directions are disposed on the rotating shaft, threaded holes matched with the first threaded section and the second threaded section are respectively disposed on the first measuring member and the second measuring member, and under the action of the clamping driving member, the first measuring member and the second measuring member respectively move relatively or oppositely.

In some embodiments of the present application, the first measuring member includes a first moving seat, a first bracket, a pressing assembly, and a measuring pin, where the first moving seat is connected to the rotating shaft, the first bracket is connected to the first moving seat, and at least two clamping plates are formed on a side of the first bracket, which is close to the second measuring member;

each clamping plate is provided with a clamping groove, the measuring needle is connected to the clamping plate through an elastic piece, and the elastic piece provides inward tension for the measuring needle;

the compression assembly comprises a column sleeve, a spring and a telescopic rod, wherein the telescopic rod is movably connected in the column sleeve, the spring is sleeved on the telescopic rod, the telescopic rod is exposed out of one end of the column sleeve, a compression end head is arranged at one end of the telescopic rod, the spring is positioned between the compression end head and the column sleeve, the column sleeve is connected to the second support, the telescopic rod is connected with the measuring needle in a contact manner, thrust far away from the direction of the second support is provided for the measuring needle, and the measuring needle is horizontally positioned in the clamping position.

In some embodiments of the present application, the second measuring member includes a second movable seat, a second bracket, a flexible bracket, a pressing assembly, and a measuring pin, the second movable seat is connected to the rotating shaft, and the second bracket is connected to the second movable seat;

two flexible supports are formed on the second support at intervals, V-shaped mounting openings with upward openings are formed in the flexible supports, and clamping positions are formed below the mounting openings;

the compression assembly comprises a column sleeve, a spring and a telescopic rod, wherein the telescopic rod is movably connected in the column sleeve, the spring is sleeved on the telescopic rod, the telescopic rod is exposed out of one end of the column sleeve, a compression end head is arranged at one end of the telescopic rod, the spring is positioned between the compression end head and the column sleeve, the column sleeve is connected to the second support, the telescopic rod is connected with the measuring needle in a contact manner, thrust far away from the direction of the second support is provided for the measuring needle, and the measuring needle is horizontally positioned in the clamping position.

In some embodiments of the present application, a displacement sensor is further connected to the second support, and a contact is formed on the displacement sensor, and the contact can be in contact connection with the measuring pin.

In some embodiments of the present application, the lifting mechanism includes a stand column, a lifting driving member fixed on the stand column, and a screw rod connected to an output end of the lifting driving member, where the screw rod is vertically installed, and a threaded hole in fit connection with the screw rod is formed on the connecting member, and the lifting driving member drives the screw rod to rotate, so as to drive the connecting member to move up and down along the screw rod;

the connecting piece is also connected with a lifting belt, the lifting belt winds the top of the upright post, the other end of the lifting belt is connected with a counterweight, and the counterweight is positioned on the opposite side of the connecting piece and used for balancing the weight of the centering clamping mechanism.

In some embodiments of the present application, conveying mechanism include conveying motor and with the conveyer belt that conveying motor is connected, the delivery station is for forming the through-hole that runs through on the conveyer belt, can dismantle on the delivery station and be connected with spacing subassembly, spacing subassembly includes annular bottom plate and a plurality of support columns and spacing riser of setting on the bottom plate, under the installed state, the piece that awaits measuring supports the support column top, spacing riser encloses to be established to await measuring a week side.

In some embodiments of the present application, the support mechanism includes a support chassis, a support driving member, a clamping plate and a support spring, the support driving member is connected on the support chassis, the telescopic end of the support driving member is connected with the lower end of the clamping plate, the upper end of the clamping plate is connected on the support spring, the support spring is divided into an upper elastic section and a lower elastic section, and the top of the support spring is provided with a support plate.

In some embodiments of the present application, the device further comprises a marking mechanism, which is mounted on the working platform and located downstream of the supporting mechanism, and is used for marking unqualified pieces to be detected.

Compared with the prior art, the utility model has the advantages and positive effects that:

according to the automatic measuring equipment, the conveying mechanism conveys the to-be-measured piece to the lower part of the measuring station and then stops, the centering clamping mechanism can be lifted along the lifting mechanism and moved to the corresponding measuring position, and after the lifting mechanism is lifted in place, the first measuring piece and the second measuring piece on the centering clamping mechanism clamp the to-be-measured piece, so that the size of the to-be-measured piece is automatically measured;

the whole measuring process is high in automation degree, high in measuring efficiency and measuring precision, low in labor intensity of operators, capable of reducing false detection and missed detection probability and capable of reducing the skill and quality requirements of the inspectors.

Other features and advantages of the present utility model will become apparent upon review of the detailed description of the utility model in conjunction with the drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of one embodiment of an automated measurement device in accordance with the present utility model;

FIG. 2 is a schematic illustration of the connection of the lifting mechanism and the centering and clamping mechanism;

FIG. 3 is a schematic illustration of a centering and clamping mechanism;

FIG. 4 is a schematic view of the clamping drive position;

FIG. 5 is a schematic view of a first measurement member in a disassembled configuration;

FIG. 6 is one of the schematic perspective views of the second measuring member;

FIG. 7 is a second perspective view of a second measuring member;

FIG. 8 is a schematic view of a second measurement member split structure;

FIG. 9 is a schematic perspective view of a flexible stent;

FIG. 10 is a schematic view of a flexible stent structure;

FIG. 11 is a schematic view of the compression assembly in a disassembled configuration;

FIG. 12 is a schematic cross-sectional view of a compression assembly;

FIG. 13 is a schematic view of the first and second measuring members in operation;

FIG. 14 is a schematic view of the connection of the part to be measured and the limiting assembly;

FIG. 15 is a schematic view of the part to be measured and the spacing assembly disassembled;

FIG. 16 is a schematic view of a support mechanism structure;

FIG. 17 is a schematic view of a support mechanism in a disassembled configuration;

FIG. 18 is a schematic side view of a tenon;

FIG. 19 is a standard block measurement schematic;

in the drawing the view of the figure,

100. a base;

110. a working platform;

200. a lifting mechanism;

210. a column; 211. a steering wheel; 212. a guide rail;

220. a lifting driving member;

230. a screw rod;

240. lifting the belt;

250. a counterweight;

300. a centering clamping mechanism;

310. a connecting piece;

320. a first measurement member; 3201. a first movable seat; 3202. a first reader;

321. a first bracket; 322. a clamping plate; 3221. a clamping groove; 323. an elastic member; 3231. a fastening screw; 3232. a measuring needle connecting hole;

330. a second measurement member; 3301. a second movable seat; 3302. a second readhead;

331. a second bracket; 3311. an interface; 3312. a first connection hole; 3313. a second connection hole;

332. a compression assembly; 3321. a column sleeve; 3322. a spring; 3323. a telescopic rod; 3324. a limiting gasket; 3325. a connecting end; 3326. compressing the end head;

333. a flexible support; 3331. a plug-in part; 3332. a plug-in end; 3333. a mounting port; 3334. a clamping position; 3335. a baffle;

334. a measuring needle;

335. a displacement sensor; 3351. a sensor mount;

340. clamping the driving member; 341. a rotating shaft;

350. a coupling;

400. a conveying mechanism;

410. a limit component; 411. a bottom plate; 412. a support column; 413. a limiting vertical plate;

500. a support mechanism; 510. a support chassis; 520. a support driving member; 530. a support spring; 540. a clamping plate; 541. a clamping plate vertical part; 550. a support plate;

600. a marking mechanism;

610. marking a bracket;

620. marking the end heads;

700. a piece to be measured;

710. a tenon; 711. mortises; 712. concave tenon tooth work surface;

720. blade ends;

800. standard block.

Description of the embodiments

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

The terms "first," "second," and the like, 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 defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; may be mechanically coupled, directly coupled, or indirectly coupled via an intermediate medium. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed.

Referring to fig. 14 and 17, the engine blade includes a tenon 710 and a blade end 720, a plurality of tenons 711 are respectively formed on two sides of the tenon 710, each of the tenons 711 is sequentially arranged, a tenon concave work surface 712 is formed between adjacent tenons 711, and the application provides an automatic measuring device, which mainly measures the dimension between the opposite tenon concave work surfaces 712 on the tenon 710.

As shown in fig. 1, the automatic measuring apparatus includes a base 100, a lifting mechanism 200, a centering and clamping mechanism 300, a conveying mechanism 400, and a supporting mechanism 500, wherein a working platform 110 is formed on the base 100, the lifting mechanism 200, the conveying mechanism 400, and the supporting mechanism 500 are all connected to the working platform 110, and the centering and clamping mechanism 300 is connected to the lifting mechanism 200 and can move up and down along the lifting mechanism 200.

Next, the structure of each component will be described in detail:

the lower side of the base 100 is provided with a stand bar for supporting on the ground, the inside of the base 100 is provided with a motor and other structures for supplying power to all the mechanisms, and the upper side of the base 100 is provided with a working platform 110 for supporting all the working mechanisms.

Referring to fig. 2, the elevating mechanism 200 includes a column 210, an elevating driving member 220, and a screw 230, the bottom of the column 210 is fixed to the work platform 110, the column 210 has a certain height, and the centering and clamping mechanism 300 moves up and down along the height direction of the column 210.

Referring to fig. 3, the centering and clamping mechanism 300 includes a connector 310, a first measuring member 320, and a second measuring member 330, the connector 310 being coupled to the lifting mechanism 200.

Referring again to fig. 1 and 2, the centering and clamping mechanism 300 is defined as a Z direction along the moving direction of the elevation driving member 220, the first measuring member 320 and the second measuring member 330 are arranged along an X direction on the connecting member 310, and a Y direction perpendicular to the X direction and the Z direction.

The lifting driving member 220 is fixed at the top of the upright column 210, the output end of the lifting driving member 220 is connected with a screw 230, the screw 230 is vertically installed, a threaded hole which is in fit connection with the screw 230 is formed in the connecting member 310, the screw 230 is connected with the threaded hole, and under the action of the threaded fit, the lifting driving member 220 drives the screw 230 to rotate and convert into the up-and-down movement of the connecting member 310 along the Z direction.

The lifting driving member 220 drives the screw 230 to rotate, and further drives the connecting member 310 to move up and down along the screw 230.

In some embodiments of the present application, in order to improve the stability of the movement of the connecting member 310 on the lifting mechanism 200, the upright 210 is further provided with a guide rail 212 in a vertical direction, and the connecting member 310 is correspondingly provided with a guide groove, so that the connecting member 310 moves along the guide rail 212, which is beneficial to improving the stability thereof.

To reduce the weight of the centering clamp mechanism 300 during lifting and lowering, the lead screw 230 is subject to less wear on the lead screw 230, and the centering clamp mechanism 300 is also coupled to the counterweight 250 via the lifting belt 240.

The top of the column 210 is provided with a steering wheel 211, the lifting belt 240 extends to the opposite side of the column 210 around the steering wheel 211 at the top of the column 210, the other end of the lifting belt 240 is connected with a counterweight 250, and the counterweight 250 is located at the opposite side of the connecting member 310 for balancing the weight of the centering and clamping mechanism 300.

The number of the lifting belts 240 is two, and the lifting belts are symmetrically arranged at two ends of the centering clamping mechanism 300, so that the lifting process is more stable.

A grating scale is also vertically provided on the column 210 to precisely measure the elevation position of the centering clamp mechanism 300.

Referring again to fig. 3, the centering and clamping mechanism 300 mainly measures the workpiece 700 to be measured through the first measuring piece 320 and the second measuring piece 330, and the first measuring piece 320 and the second measuring piece 330 are respectively movably connected to the connecting piece 310 along the horizontal direction; a measuring station is formed between the first measuring element 320 and the second measuring element 330, the to-be-measured element 700 is located on the to-be-measured station, the first measuring element 320 and the second measuring element 330 are respectively attached to the left side and the right side of the to-be-measured element 700, and the size of the to-be-measured element 700 is detected through the relative positions of the first measuring element 320 and the second measuring element 330.

The movement of the first measuring element 320 and the second measuring element 330 is achieved through a clamping driving element 340, specifically, the connecting element 310 is provided with the clamping driving element 340, the output end of the clamping driving element 340 is connected with a rotating shaft 341 through a coupling 350, the rotating shaft 341 is provided with a first threaded section and a second threaded section with opposite directions, and the first measuring element 320 and the second measuring element 330 are respectively provided with threaded holes matched with the first threaded section and the second threaded section.

The first measuring part 320 and the second measuring part 330 are respectively moved along the rotation shaft 341 relatively or oppositely under the action of the clamping driving part 340, so as to clamp and release the to-be-measured part 700.

The connector 310 is further provided with a size identifier, and for convenient reading, the first measuring element 320 and the second measuring element 330 are respectively provided with a first reading head 3202 and a second reading head 3302, and the first reading head 3202 and the second reading head 3302 are in direct contact with the size identifier, so that the reading is convenient.

The specific structural composition of the first measuring member 320 and the second measuring member 330 and the operation process will be described in detail as follows:

referring to fig. 4 and 5, the first measuring part 320 includes a first moving seat 3201, a first bracket 321, a pressing assembly 332 and a measuring pin 334, the first moving seat 3201 is connected with the rotating shaft 341, the first bracket 321 is vertically connected to the first moving seat 3201 along the Y direction, and at least two clamping plates 322 are formed on one side of the first bracket 321 close to the second measuring part 330; the respective card-in plates 322 are arranged at intervals along the Y direction.

In some embodiments of the present application, the number of the clamping plates 322 is two, the spacing distance is slightly smaller than the length of the measuring pin 334, the clamping grooves 3221 are formed on each clamping plate 322, the measuring pin 334 is connected to each clamping plate 322 through the elastic member 323, and the elastic member 323 provides inward pulling force for the measuring pin 334.

The elastic members 323 are connected to the clamping groove 3221 through fastening screws 3231, measuring pin connecting holes 3232 are further formed in the elastic members 323, two ends of the measuring pins 334 are respectively inserted into the measuring pin connecting holes 3232 in the two elastic members 323, and in an operating state, the elastic members 323 are in a tensioning state to connect the measuring pins 334 into the clamping groove 3221.

Referring to fig. 6 to 12, the second measuring part 330 includes a second moving block 3301, a second bracket 331, a flexible bracket 333, a pressing assembly 332, and a measuring pin 334, the second moving block 3301 is connected to the rotating shaft 341, and the second bracket 331 is connected to the second moving block 3301.

The second support 331 is connected with at least two flexible supports 333 arranged at intervals, each flexible support 333 is sequentially arranged on the second support 331 along the Y axis, the flexible supports 333 are located at one side close to the first measuring part 320, and clamping positions 3334 are formed on each flexible support 333.

The number of the flexible supports 333 is two, a V-shaped mounting opening 3333 with an upward opening direction is formed on the flexible supports 333, and the clamping position 3334 is positioned below the mounting opening 3333.

One end of the clamping position 3334 is provided with a circular arc-shaped contact end face, the size of the contact end face is slightly larger than the outer diameter of the measuring pin 334, the measuring pin 334 is installed in the clamping position 3334 from the installation opening 3333, and the measuring pin 334 is in contact connection with the contact end face under the action of the pressing assembly 332.

The size of the clamping position 3334 is larger than that of the measuring pin 334, so that a buffer space can be provided for the measuring pin 334, the detection accuracy is improved, and the collision between the measuring pin 334 and the to-be-measured piece 700 is reduced.

The post sleeve 3321 of the pressing assembly 332 is connected to the second bracket 331, and the telescopic rod 3323 is connected with the measuring pin 334 in a contact manner to provide thrust for the measuring pin 334 in a direction far away from the second bracket 331, so that the measuring pin 334 is horizontally positioned in the clamping position 3334.

Referring specifically to fig. 8, a plugging portion 3331 is formed on the flexible support 333, a plugging end 3332 is formed at the end of the plugging portion 3331, a tapered section is formed on the plugging end 3332, a plugging port 3311 is also formed on the second support 331, and the flexible support 333 is plugged onto the second support 331 through the plugging end 3332.

Specifically, in order to prevent the gauge pin 334 from being separated from the flexible supports 333, the two flexible supports 333 at the end portions are provided with the baffle 3335, and in the installation state, the baffle 3335 limits the displacement of the gauge pin 334 in the Y direction, so that the connection stability of the gauge pin 334 is improved.

The gauge pins 334 on the first and second gauges 320 and 330 are horizontally disposed along the Y-axis direction, and the center lines of the gauge pins 334 placed on the first and second gauges 320 and 330 are identical in height.

The pressing assembly 332 is located between the two clamping plates 322, referring to fig. 11 and 12, the pressing assembly 332 includes a post sleeve 3321, a telescopic rod 3323 and a spring 3322, the telescopic rod 3323 penetrates through the post sleeve 3321 and moves along a certain range in the post sleeve 3321, and the spring 3322 is sleeved on one end of the telescopic rod 3323 exposed out of the post sleeve 3321.

The post sleeve 3321 is connected to the first bracket 321, and the telescopic rod 3323 is connected to the measuring pin 334 in a contact manner to provide an outward pushing force for the measuring pin 334, and the measuring pin 334 is horizontally connected in each clamping groove 3221 under the cooperation of the elastic member 323 and the pressing assembly 332.

In some embodiments of the present application, a stepped hole is formed at a first end inside the column sleeve 3321, a limiting gasket 3324 and a connecting end 3325 are connected to the telescopic rod 3323, and the telescopic rod 3323 moves left and right within a certain range of the stepped hole under the action of the limiting gasket 3324 and the connecting end 3325.

The end of the telescopic rod 3323 is provided with a compression end 3326, the spring 3322 is connected between the compression end 3326 and the column sleeve 3321, the compression end 3326 is made of soft materials such as rubber, silica gel and polyurethane, and the compression end 3326 is installed in manners such as vulcanization, bonding and interference fit, so that pressure can be generated on the measuring pin 334, the measuring pin 334 can be tightly attached to the working surface of the tenon tooth 711, and damage to the measuring pin 334 can be avoided.

The outer terminal surface of post cover 3321 outside one end is equipped with the screw thread, all is provided with first connecting hole 3312 on first support 321 and the second support 331, and this first connecting hole 3312 is the screw hole structure, and post cover 3321 passes through threaded connection on first support 321 and second support 331, and the other end of post cover 3321 is equipped with the annular knurl, is convenient for screw up, unscrew the operation.

The pressing assembly 332 has a certain elasticity, and in the actual measurement process, the position of the to-be-measured member 700 may deviate from the positions of the first measurement member 320 and the second measurement member 330, and in the measurement process, after the first measurement member 320 and the second measurement member 330 contact the working surface of the tenon tooth 711, the to-be-measured member 700 is pushed to make a slight adjustment along the X direction, so that the measuring needle is tightly attached to the working surface of the tenon tooth 711, and the measurement result is accurate.

The hold-down assembly 332 provides some cushioning for the action of the gauge pin 334 to avoid impact wear between the gauge pin 334 and the part 700 to be measured.

The to-be-measured piece 700 is conveyed to the lower part of the measuring station through the conveying mechanism 400, and a conveying station is formed on the conveying mechanism 400 and used for placing the to-be-measured piece 700.

Specifically, referring again to fig. 1, in some embodiments of the present application, the conveyor mechanism 400 includes a conveyor motor and a conveyor belt coupled to the conveyor motor, with the conveyor station being a through-hole formed therethrough.

In operation, blade end 720 extends from the transport station to below the conveyor belt, and rabbet 710 is supported above the transport station.

Referring to fig. 14 and 15, a limiting assembly 410 is detachably connected to the conveying station, and the limiting assembly 410 includes an annular bottom plate 411, a plurality of support columns 412 disposed on the bottom plate 411, and a limiting standing plate 413.

Since the engine blade includes the tenon 710 and the blade end 720, the automatic measuring device according to the application mainly measures the distance between the two opposite tenon tooth concave-work surfaces 712, the tenon 710 is supported at the top of the support column 412, the limiting vertical plate 413 is enclosed on the periphery of the tenon 710, and the blade end 720 extends downwards from the middle of the support column 412.

The number of the conveying stations is multiple, the conveying stations are arranged on the conveying belt at intervals, when the detection of the to-be-measured piece 700 located at the corresponding position of the measuring station is completed, the conveying motor is started to drive the conveying belt to move backwards, the detected to-be-measured piece 700 is conveyed to the downstream, the to-be-measured piece 700 on the next conveying station is moved to the corresponding position below the detecting station, and the detection is repeated.

After the workpiece 700 to be measured is conveyed in place, the supporting mechanism 500 rises from the position corresponding to the conveying station and contacts with the corresponding blade end 720, so that the whole workpiece to be measured is supported, the workpiece 700 to be measured is close to a suspension state on the limiting assembly 410, the gravity of the workpiece 700 to be measured is balanced, and the resistance between the workpiece 700 to be measured and the conveying mechanism 400 in the centering process of the first measuring element 320 and the second measuring element 330 can be effectively reduced due to the small contact area between the blade end 720 and the supporting mechanism 500.

Specifically, in some embodiments of the present application, referring to fig. 16 and 17, the support mechanism 500 includes a support chassis 510, a support driving member 520, an attachment plate 540, and a support spring 530, the support driving member 520 is connected to the support chassis 510, the support chassis 510 is detachably connected to the transport station, a telescopic end of the support driving member 520 is connected to a lower end of the attachment plate 540, an upper end of the attachment plate 540 is connected to the support spring 530, the support spring 530 is divided into an upper elastic section and a lower elastic section, and a support plate 550 is provided at a top of the support spring 530.

Specifically, two ends of the clamping plate 540 are respectively provided with a vertically upward clamping plate vertical portion 541, a through hole is formed in the clamping plate vertical portion 541, and the clamping plate vertical portion 541 penetrates into the middle position of the supporting spring 530 through the through hole.

The working process is as follows: before the conveying belt conveys the to-be-measured piece 700 to the measuring station, the supporting driving piece 520 drives the clamping plate 540 to move downwards, the lower half part of the supporting spring 530 is compressed, the clamping plate 540 drives the lower half part of the supporting spring 530 to be compressed, and at the moment, the height of the supporting plate 550 is lower than the height of the bottommost end of the to-be-measured piece.

When the conveying belt conveys the piece 700 to be measured to the measuring station, the piece 700 to be measured is located right above the supporting plate 550, the supporting driving piece 520 drives the clamping plate 540 to move upwards, the clamping plate 540 drives the lower half part of the supporting spring 530 to ascend, the supporting plate 550 moves upwards until the lowest end of the blade end 720 is contacted, the supporting driving piece 520 continues to move upwards, the supporting plate 550 does not continue to ascend, the upper half part of the supporting spring 530 is compressed, upward thrust is generated on the supporting plate 550, when the thrust is close to the gravity of the piece 700 to be measured, the supporting driving piece 520 is controlled to stop, and the piece 700 to be measured is in an approximately suspended state on the supporting underframe 510.

The specific stop time of the supporting driving member 520 needs to be calculated and verified through experiments to obtain the extension amount of the supporting driving member 520 required by the members 700 to be measured corresponding to different specifications, and the extension amount is recorded into a system, and when the measured members with different specifications are replaced, the support driving member is automatically or manually switched.

The application also proposes a measurement method comprising the steps of:

1. placing the to-be-measured piece 700 on a conveying station, and conveying the to-be-measured piece 700 to the lower part of the measuring station by the conveying mechanism 400;

the tenons 710 of the respective pieces 700 to be measured are supported on the top of the supporting columns 412, the blade ends 720 extend downward from the middle of the supporting columns 412, and after the conveying motor is turned on, the pieces 700 to be measured are conveyed backward along with the conveying belt.

2. The supporting mechanism 500 ascends to provide support for the member 700 to be measured;

when the piece 700 to be measured is conveyed to the position right above the supporting plate 550, the supporting driving piece 520 drives the clamping plate 540 to move upwards, the clamping plate 540 drives the lower half part of the supporting spring 530 to ascend, the supporting plate 550 moves upwards until the lower half part of the supporting plate contacts the end 720 of the blade, the supporting driving piece 520 continues to move upwards, the supporting plate 550 does not continue to ascend, the upper half part of the supporting spring 530 is compressed, upward thrust is generated on the supporting plate 550, when the thrust is close to the gravity of the piece 700 to be measured, the supporting driving piece 520 is controlled to stop, and at the moment, the piece 700 to be measured is in an approximately suspended state on the supporting underframe 510.

3. The centering and clamping mechanism 300 is lowered along the lifting mechanism 200 to the corresponding measuring position of the piece 700 to be measured:

the lifting drive member 220 is opened, the screw 230 is rotated, and the connecting member 310 on the centering and clamping mechanism 300 is moved down to the concave tenon tooth work surface 712 of the tenon 710.

4. The first measuring part 320 and the second measuring part 330 move in opposite directions in synchronization to measure the width of the corresponding measuring position of the member 700 to be measured;

then, the clamping driving member 340 is opened, the first measuring member 320 and the second measuring member 330 are moved in the opposite directions, and the measuring pin 334 on the first measuring member 320 and the measuring pin 334 on the second measuring member 330 are respectively moved into the concave tenon work surfaces 712 on both sides to be in contact with the concave tenon work surfaces 712.

Referring to fig. 18 and 19, the dimensions of the concave tenon work surface 712 are not convenient to directly measure, and the dimensions between the outer sides of the measuring pins 334 on two sides of the piece 700 to be measured are defined as A1, A2, A3, A4 and … … in sequence.

After the first measuring element 320 and the second measuring element 330 clamp the measured element, the corresponding dimensions L1', L1 are read according to the positions corresponding to the first reading head 3202 and the second reading head 3302.

Thereby obtaining the sizes of the corresponding positions of A1, A2, A3 and A4 … ….

In order to reduce measurement errors, the standard block 800 is used for size compensation between measurements, and the standard block 800 is a high-precision inspection gauge with strictly detected size and needs to be checked periodically. The standard block 800 is used to calibrate the compensation data for the device. To obtain higher accuracy compensation data, standard block 800 may be machined to multiple specifications of different width dimensions according to different specifications of tenon 710 dimensions.

Defining the actual width dimension of the standard block 800 as M, pre-placing the standard block 800 between the first measuring piece 320 and the second measuring piece 330, replacing the gauge pins 334 of the same specification on the first measuring piece 320 and the second measuring piece 330, and the dimension a0=m+2d between the gauge pins 334 is the diameter of the gauge pins; the position sizes read by the first reader 3202 and the second reader 3302 are L0, L0', respectively, and the compensation amount a=l0-L0' -A0;

then, the dimensions of the corresponding position of the compensated part to be measured 700 are:

A1= L1-L1’-a；

A2= L2-L2’-a；

……；

for the to-be-measured pieces with different specifications, the measuring pins 334 with different specifications need to be replaced, and each time the measuring pins 334 are replaced or the specified interval time is reached, the recalculation of size compensation needs to be performed so as to ensure the measurement accuracy.

5. The centering clamping mechanism 300 moves to other measuring positions of the to-be-measured piece 700 under the drive of the lifting mechanism 200 to perform measurement;

the first measuring element 320 and the second measuring element 330 move synchronously towards each other, and then continue to descend into the concave tenon work surface 712 of the element 700 to be measured, and the dimension a2=l2-l2' -a between the two concave tenon work surfaces 712 opposite to each other is measured repeatedly according to the measuring method.

6. After the measurement is finished, the centering and clamping mechanism 300 is lifted, the supporting mechanism 500 is lowered, and the to-be-measured piece 700 is driven by the conveying mechanism 400 to be conveyed backwards.

After the detection of the to-be-measured member 700 is completed, the centering and clamping mechanism 300 is reset, the supporting driving member 520 drives the clamping plate 540 to move downwards, the lower half part of the supporting spring 530 is compressed, and the clamping plate 540 drives the lower half part of the supporting spring 530 to be compressed, at this time, the height of the supporting plate 550 is lower than the height of the bottommost end of the to-be-measured member.

The conveying motor is started to drive the conveying belt to move backwards, the detected part 700 to be measured is conveyed to the downstream, the part 700 to be measured on the next conveying station moves to the corresponding position below the detecting station, and detection is repeated.

In other embodiments of the present application, referring again to fig. 1, a marking mechanism 600 is further disposed downstream of the supporting mechanism 500, where the marking mechanism 600 includes a marking support 610 and a movable marking tip 620 disposed on the marking support 610, and when the to-be-measured piece 700 does not meet the target after the detection, the marking tip 620 marks the to-be-measured piece, thereby facilitating the later screening.

In some embodiments of the present application, the second support 331 is further connected with a displacement sensor 335 through a sensor mounting seat 3351, and the displacement sensor 335 is a pen-type high-precision displacement sensor 335, and a high-precision grating ruler is built in to ensure accurate measurement of displacement data.

The second bracket 331 is provided with a second connecting hole 3313, the contact of the displacement sensor 335 extends to the opposite side through the second connecting hole 3313, the contact of the displacement sensor 335 is a straight contact, the end part is in a structure of gradually changing from a cylindrical shape to a straight shape, and the cross section along the axis of the contact is approximately triangular.

The straight contact is formed by processing steel with higher hardness after heat treatment, which is beneficial to improving the wear resistance of the straight contact and avoiding the wear caused by frequent contact with the measuring pin 334.

The tail end of the straight contact is transited by an arc (or chamfer), and the tail end is an extremely narrow plane. The wider end can ensure the rigidity of the contact, and reduce the extrusion deformation when the straight contact is contacted with the measuring pin 334; the extremely narrow plane can ensure the line contact of approximate point contact when the straight contact contacts with the cylindrical surface of the measuring pin 334, and reduces the measurement error of the pen type high-precision displacement sensor 335.

The specific usage method of the displacement sensor 335 is as follows: after the second measuring element 330 contacts the corresponding concave tenon work surface 712, the measuring pin 334 on the second measuring element 330 moves rightwards under the action of the concave tenon work surface 712, at this time, the measuring pin 334 contacts with the contact of the displacement sensor 335, when the displacement of the displacement sensor 335 reaches a preset value, it is determined that the first measuring element 320 and the second measuring element 330 are in place, the displacement sensor 335 transmits a signal to the controller, and the controller controls the clamping driving element 340 to stop moving.

In the description of the above embodiments, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is merely illustrative embodiments of the present utility model, and the scope of the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be covered by the present utility model, and the scope of the present utility model shall be defined by the appended claims.

Claims (10)

1. An automatic measurement device, comprising:

a base on which a work platform is formed;

the lifting mechanism is arranged on the working platform;

the centering clamping mechanism comprises a connecting piece, a first measuring piece and a second measuring piece, wherein the connecting piece is movably connected to the lifting mechanism along the vertical direction, and the first measuring piece and the second measuring piece are movably connected to the connecting piece along the horizontal direction; a measuring station is formed between the first measuring piece and the second measuring piece;

the conveying mechanism is connected to the working platform and located below the centering clamping mechanism, and a conveying station is formed on the conveying mechanism and used for placing a piece to be measured.

2. The automatic measuring device according to claim 1, wherein,

the device also comprises a supporting mechanism which is arranged on the working platform in a lifting manner, is positioned below the measuring station and is used for supporting the to-be-measured piece which moves to the lower part of the measuring station.

3. The automatic measuring device according to claim 1, wherein,

the connecting piece is provided with a clamping driving piece, the output end of the clamping driving piece is provided with a rotating shaft, the rotating shaft is provided with a first threaded section and a second threaded section which are opposite in direction, threaded holes which are matched with the first threaded section and the second threaded section are respectively formed in the first measuring piece and the second measuring piece, and the first measuring piece and the second measuring piece respectively move relatively or oppositely under the action of the clamping driving piece.

4. An automatic measuring device according to claim 3, characterized in that,

the first measuring part comprises a first movable seat, a first bracket, a compression assembly and a measuring needle, wherein the first movable seat is connected with the rotating shaft, the first bracket is connected to the first movable seat, and at least two clamping plates are formed on one side, close to the second measuring part, of the first bracket;

each clamping plate is provided with a clamping groove, the measuring needle is connected to the clamping plate through an elastic piece, and the elastic piece provides inward tension for the measuring needle;

the compression assembly comprises a column sleeve, a spring and a telescopic rod, wherein the telescopic rod is movably connected in the column sleeve, the spring is sleeved on the telescopic rod, the telescopic rod is exposed out of one end of the column sleeve, a compression end head is arranged at one end of the telescopic rod, the spring is positioned between the compression end head and the column sleeve, the column sleeve is connected to a first support, the telescopic rod is connected with a measuring needle in a contact manner, thrust far away from the direction of the first support is provided for the measuring needle, and the measuring needle is horizontally positioned in the clamping groove.

5. An automatic measuring device according to claim 3, characterized in that,

the second measuring piece comprises a second movable seat, a second bracket, a flexible bracket, a compression assembly and a measuring needle, wherein the second movable seat is connected with the rotating shaft, and the second bracket is connected to the second movable seat;

two flexible supports are formed on the second support at intervals, V-shaped mounting openings with upward openings are formed in the flexible supports, and clamping positions are formed below the mounting openings;

the compression assembly comprises a column sleeve, a spring and a telescopic rod, wherein the telescopic rod is movably connected in the column sleeve, the spring is sleeved on the telescopic rod, the telescopic rod is exposed out of one end of the column sleeve, a compression end head is arranged at one end of the telescopic rod, the spring is positioned between the compression end head and the column sleeve, the column sleeve is connected to the second support, the telescopic rod is connected with the measuring needle in a contact manner, thrust far away from the direction of the second support is provided for the measuring needle, and the measuring needle is horizontally positioned in the clamping position.

6. The automatic measuring apparatus according to claim 5, wherein,

and the second bracket is also connected with a displacement sensor, a contact is formed on the displacement sensor, and the contact can be in contact connection with the measuring needle.

7. The automatic measuring device according to claim 1, wherein,

the lifting mechanism comprises a stand column, a lifting driving piece and a screw rod, wherein the lifting driving piece is fixed on the stand column, the screw rod is connected with the output end of the lifting driving piece, the screw rod is vertically installed, a threaded hole which is matched and connected with the screw rod is formed in the connecting piece, and the lifting driving piece drives the screw rod to rotate so as to drive the connecting piece to move up and down along the screw rod;

the connecting piece is also connected with a lifting belt, the lifting belt winds the top of the upright post, the other end of the lifting belt is connected with a counterweight, and the counterweight is positioned on the opposite side of the connecting piece and used for balancing the weight of the centering clamping mechanism.

8. The automatic measuring device according to claim 1, wherein,

the conveying mechanism comprises a conveying motor and a conveying belt connected with the conveying motor, the conveying station is a through hole formed in the conveying belt to penetrate through, a limiting assembly is detachably connected to the conveying station, the limiting assembly comprises an annular bottom plate, a plurality of supporting columns and limiting vertical plates, the supporting columns are arranged on the bottom plate, the supporting columns are supported at the tops of the supporting columns in a mounting state, and the limiting vertical plates are arranged on the periphery of the to-be-measured piece in a surrounding mode.

9. An automatic measuring device according to claim 2, characterized in that,

the supporting mechanism comprises a supporting underframe, a supporting driving piece, a clamping plate and a supporting spring, wherein the supporting driving piece is connected to the supporting underframe, the telescopic end of the supporting driving piece is connected with the lower end of the clamping plate, the upper end of the clamping plate is connected to the supporting spring, the supporting spring is divided into an upper elastic section and a lower elastic section, and the supporting plate is arranged at the top of the supporting spring.

10. An automatic measuring device according to claim 2, characterized in that,

the marking mechanism is arranged on the working platform and positioned at the downstream of the supporting mechanism and is used for marking unqualified parts to be detected.