CN209102026U

CN209102026U - A kind of Multi point measuring apparatus

Info

Publication number: CN209102026U
Application number: CN201821830500.8U
Authority: CN
Inventors: 韩志强; 胡亮; 邓传根
Original assignee: Nanjing Mapos Automation Equipment Co Ltd
Current assignee: Nanjing Mapos Automation Equipment Co Ltd
Priority date: 2018-11-07
Filing date: 2018-11-07
Publication date: 2019-07-12
Anticipated expiration: 2028-11-07

Abstract

The utility model discloses a kind of Multi point measuring apparatus, including fixed bracket and detection unit, the multiple spot detection unit and the fixed bracket floating connection, the detection unit includes fixed plate, the hole measurement module and surface measurement module being separately positioned in the fixed plate, the hole measurement module includes elastic component, detection axis and the first detection piece, the detection axis is rotated relative to the fixed plate to be arranged, the second end of the elastic component is provided with the positioning region being spherical, the positioning region drives first detection piece to be inserted on the workpiece in the gaging hole to be checked opened up, the positioning region and the gaging hole shape to be checked cooperate, the surface detection module includes two detectors being symmetricly set in the fixed plate, each detector slides against the surface of the workpiece respectively.The utility model at least has the following advantages: realizing that multiple spot carries out disposable measurement method, solve measurement error brought by transformation of criterion, improves measurement accuracy rate.

Description

A kind of Multi point measuring apparatus

Technical field

The utility model relates to detection technique field more particularly to a kind of Multi point measuring apparatus.

Background technique

The measurement of high-accuracy automobile product machining accuracy and control are increasingly tended to progress with the development of science and technology Full-automation, and traditional artificial check and measurement one side cost of labor for existing enterprise are huge, efficiency Lowly, on the other hand the accuracy for measuring and checking not can guarantee.Therefore to have been devoted to R and D high-accuracy for enterprise The full-automatic measuring device of automobile product, the cylinder cap camshaft hole for example designed for choosing valve lifter to valve top The measuring device of distance.

Tappet is an important part of car engine machine, in order to guarantee that valve-closing is tight, in valve rod end and gas There are gaps appropriate, referred to as valve clearance between door actuator (rocker arm, tappet or cam).Compare in hot vehicle valve clearance It is small, it is bigger in cold vehicle, this is because valve stem expands elongation because temperature increases when engine is run, gap is caused to be contracted It is small.Engine operation will be made abnormal if valve clearance adjustment is improper, the excessive open amount that will affect valve, valve stroke subtracts Cause air inlet insufficient less, exhaust is not thorough；It is too small valve-closing to be caused not cause gas leakage sternly, cause power dropping.In order to keep away Exempt from valve clearance adjustment it is improper caused by trouble, preferentially select integrated mechanical tappet in present engine to control between valve Gap.But because the part of valve assembly has certain error, the tappet thickness chosen is caused to be different.But choose that thickness Grade, it is necessary to which measurement is to determine.

Actual application is that the measuring device of cylinder cap camshaft hole to valve top distance drives slowly decline by slide unit, The positioning device and measured workpiece of workpiece positioning position, and changing device will be with the matched measuring staff part of inner hole of workpiece diameter and work The matched measuring staff part of part tappet and the measurement sensor for feeding back measurement data relax to measurement position, acquire measurement data and on It passes.The efficiency of current manual measurement cubing is relatively low, and the beat of single station is long, needs air inlet side to measure 4 times, is then vented Side measures 4 times, and has sequence requirement, and repeated detection, process is relatively more, and multiple bearing, scale error is bigger, low efficiency, difficult To obtain comparatively ideal precision and dimensional uniformity.Such as misoperation, it is also easy to cause the damage of polished surface.

Utility model content

The technical problem to be solved by the present invention is to provide a kind of Multi point measuring apparatus, it is disposable to realize that multiple spot carries out Measurement method solves measurement error brought by transformation of criterion, improves measurement accuracy rate.

In order to solve the above-mentioned technical problem, the utility model provides a kind of Multi point measuring apparatus, including fixed bracket, use In the multiple spot detection unit measured to workpiece, the multiple spot detection unit and the fixed bracket floating connection, the inspection Surveying unit includes fixed plate, the hole measurement module being separately positioned in the fixed plate and surface measurement module, the hole measurement Module includes the elastic component being fixed in the fixed plate, detection axis and the first detection piece, the first end of the detection axis Be fixedly connected with the elastic component, second segment is fixedly connected with first detection piece, the detection axis is rotated relative to the fixed plate Setting, the second end of the elastic component are provided with the positioning region being spherical, and the positioning region drives first detection piece to insert Enter in the gaging hole to be checked opened up on the workpiece, the positioning region and the gaging hole shape to be checked cooperate, the surface detection module Including two detectors being symmetricly set in the fixed plate, each detector slides against the table of the workpiece respectively Face.

Further, floating unit is provided between the fixed bracket and the fixed plate, the floating unit includes Horizontal float module and vertical float module.

Further, the horizontal float module includes the horizontal float block of the relatively described fixed bracket slide setting, sets The first floating spring on the fixed bracket is set, first floating spring limits the horizontal float in the horizontal direction Block movement.

Further, the vertical float module includes be respectively perpendicular the connection horizontal float block and fixed plate second Floating spring.

Further, the first guide post is provided in the fixed plate, it is floating that first guide post is arranged in described second It moves and spring and extends on the fixed bracket, be provided on the fixed bracket for limiting first guide post vertical Side moves upwards.

Further, counterweight unit, the counterweight are provided between the fixed bracket and the fixed plate Unit includes multiple counterweight springs for being separately connected the fixed bracket and the fixed plate.

Further, the monitor station for accepting the workpiece is provided in the fixed plate, the monitor station is located at institute State the lower section of hole measurement module and surface measurement module.

Further, the locating slot for positioning the workpiece is offered on the monitor station, the monitor station is by Dali Stone material is made.

Due to the application of the above technical scheme, the utility model have compared with prior art it is following the utility model has the advantages that

A kind of Multi point measuring apparatus is provided, by being provided with hole measurement module and surface measurement module, is driven by outside Dynamic source drives fixed support motion, and then hole measurement module and surface measurement module is driven to detect simultaneously to workpiece, realizes Multiple spot carries out disposable measurement method, solves measurement error brought by transformation of criterion, improves measurement accuracy rate.

Detailed description of the invention

Fig. 1 is the overall structure diagram of an angle of the utility model；

Fig. 2 is the overall structure diagram of another angle of the utility model；

Fig. 3 is the hole measurement modular structure schematic diagram of the utility model；

Fig. 4 is the utility model floating unit structural schematic diagram.

Detailed description of the invention: 1, fixed bracket；2, fixed plate；3, hole measurement module；4, surface measurement module；5, floating unit； 6, counterweight spring；7, monitor station；301, elastic component；302, detection axis；303, the first detection piece；304, positioning region；401, it detects Head；501, horizontal float block；502, the first floating spring；503, the second floating spring；504, the first guide post.

Specific embodiment

The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model It can be easier to be readily appreciated by one skilled in the art with feature, to make the protection scope of the utility model apparent clear Define.

In conjunction with attached drawing, the utility model discloses a kind Multi point measuring apparatus, including fix bracket 1, for workpiece The multiple spot detection unit measured, the multiple spot detection unit and fixed 1 floating connection of bracket.The detection unit packet The hole measurement module 3 and surface measurement module 4 for including fixed plate 2, being separately positioned in the fixed plate 2.The hole measurement module 3 Including elastic component 301, detection axis 302 and the first detection piece 303 being fixed in the fixed plate 2, the detection axis 302 first end is fixedly connected with the elastic component 301, second segment is fixedly connected with first detection piece 303, the detection axis 302 rotate setting relative to the fixed plate 2, and the second end of the elastic component 301 is provided with the positioning region 304 being spherical.Institute Stating positioning region 304 drives first detection piece 303 to be inserted on the workpiece in the gaging hole to be checked opened up, the positioning region 304 Cooperate with the gaging hole shape to be checked.It, can be preferably opposite to detection axis during detection by above-mentioned set-up mode The position of workpiece, structure optimization；And the positioning region 304 by being provided with spherical shape, can guarantee the first detection piece 303 with During workpiece sensing, the scuffing of workpiece is avoided.The surface detection module includes being symmetricly set in the fixed plate 2 Two detectors 401, each detector 401 slide against the surface of the workpiece respectively.By above-mentioned set-up mode, External drive source drives fixed bracket 1 to move, and then hole measurement module 3 and surface measurement module 4 is driven to carry out simultaneously to workpiece Detection realizes that multiple spot carries out disposable measurement method, solves measurement error brought by transformation of criterion, it is accurate to improve measurement Rate.

In the utility model, floating unit 5 is provided between the fixed bracket 1 and the fixed plate 2, the floating is single Member includes horizontal float module and vertical float module.The horizontal float module includes that the relatively described sliding of fixed bracket 1 is set The horizontal float block 501 set, the first floating spring 502 being arranged on the fixed bracket 1, first floating spring 502 The horizontal float block 501 is limited in the horizontal direction to move.By above-mentioned set-up mode, guarantee the position that each workpiece is surveyed Fixation is set, but workpiece reaches position to be measured every time, by the pallet of workpiece with the presence of certain error.It thus needs whole A measuring device can automatically deacclimatize the position where workpiece, guarantee that surveyed point is fixed with measuring unit relative position, It is unified to the measurement evaluation criterion of workpiece.

The vertical float module includes being respectively perpendicular the connection horizontal float block 501 and the second of fixed plate 2 to float Spring 503.The first guide post 504 is provided in the fixed plate 2, first guide post 504 is arranged in described second and floats Spring 503 simultaneously extends on the fixed bracket 1, is provided on the fixed bracket 1 for limiting first guide post 504 It moves in vertical direction.By above-mentioned set-up mode, after entire measuring device touches workpiece, fixed plate 2 is not stopped Only, it continues traveling downwardly, vertical float unit with 2 downlink of fixed plate and by checking switch alarm, does not keep equipment out of service, avoids Measured workpiece and entire measuring device are damaged, the function of safeguard protection is played.

Counterweight unit is provided between the fixed bracket 1 and the fixed plate 2, the counterweight unit includes Multiple counterweight springs 6 for being separately connected the fixed bracket 1 and the fixed plate 2.By above-mentioned set-up mode, can reduce For entire measuring device to the pressure of measured workpiece, avoiding biggish external force from making workpiece, deformation occurs, and deformation error is brought into and is surveyed In the value of amount, make measured value inaccuracy.

The monitor station 7 for accepting the workpiece is provided in the fixed plate 2, the monitor station 7 is located at hole survey Measure the lower section of module 3 and surface measurement module 4.The locating slot for positioning the workpiece is offered on the monitor station 7, it is described Monitor station 7 is made of marble material.By above-mentioned set-up mode, during long-term detection, marble is unlikely to deform, It ensure that the accuracy of single unit system measurement.

The above is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all utilizations Equivalent structure or equivalent flow shift made by the utility model specification and accompanying drawing content, is applied directly or indirectly in other Relevant technical field, is also included in the patent protection scope of the utility model.

Claims

1. a kind of Multi point measuring apparatus, which is characterized in that detected including fixed bracket, the multiple spot for being measured to workpiece single Member, the multiple spot detection unit and the fixed bracket floating connection, the detection unit include fixed plate, are separately positioned on institute The hole measurement module and surface measurement module in fixed plate are stated, the hole measurement module includes being fixed in the fixed plate Elastic component, detection axis and the first detection piece, the first end of the detection axis is fixedly connected with that the elastic component, second segment are fixed to be connected First detection piece is connect, the detection axis is rotated relative to the fixed plate to be arranged, and the second end of the elastic component, which is provided with, is in The positioning region of spherical shape, the positioning region drive first detection piece to be inserted on the workpiece in the gaging hole to be checked opened up, institute It states positioning region and the gaging hole shape to be checked cooperates, the surface detection module includes two be symmetricly set in the fixed plate Detector, each detector slide against the surface of the workpiece respectively.

2. Multi point measuring apparatus as described in claim 1, which is characterized in that set between the fixed bracket and the fixed plate It is equipped with floating unit, the floating unit includes horizontal float module and vertical float module.

3. Multi point measuring apparatus as described in claim 1, which is characterized in that the horizontal float module includes relatively described solid The horizontal float block of fixed rack sliding setting, the first floating spring being arranged on the fixed bracket, the first floating bullet Spring limits the horizontal float block movement in the horizontal direction.

4. Multi point measuring apparatus as claimed in claim 3, which is characterized in that the vertical float module includes the company of being respectively perpendicular Connect the second floating spring of the horizontal float block and fixed plate.

5. Multi point measuring apparatus as claimed in claim 4, which is characterized in that the first guide post is provided in the fixed plate, First guide post is arranged in second floating spring and extends on the fixed bracket, is arranged on the fixed bracket Have and is moved in vertical direction for limiting first guide post.

6. Multi point measuring apparatus as described in claim 1, which is characterized in that set between the fixed bracket and the fixed plate It is equipped with counterweight unit, the counterweight unit includes multiple being separately connected matching for the fixed bracket and the fixed plate Weight spring.

7. Multi point measuring apparatus as described in claim 1, which is characterized in that be provided in the fixed plate described for accepting The monitor station of workpiece, the monitor station are located at the lower section of the hole measurement module and surface measurement module.

8. Multi point measuring apparatus as claimed in claim 7, which is characterized in that offered on the monitor station described for positioning The locating slot of workpiece, the monitor station are made of marble material.