CN105277163A - Device for on-line detection judgment of height difference of two points on workpiece - Google Patents

Device for on-line detection judgment of height difference of two points on workpiece Download PDF

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Publication number
CN105277163A
CN105277163A CN201410354152.1A CN201410354152A CN105277163A CN 105277163 A CN105277163 A CN 105277163A CN 201410354152 A CN201410354152 A CN 201410354152A CN 105277163 A CN105277163 A CN 105277163A
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CN
China
Prior art keywords
workpiece
height
sensor
differences
distance sensor
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Pending
Application number
CN201410354152.1A
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Chinese (zh)
Inventor
王家乐
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Shanghai Hitachi Household Appliance Co Ltd
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Shanghai Hitachi Household Appliance Co Ltd
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Priority to CN201410354152.1A priority Critical patent/CN105277163A/en
Publication of CN105277163A publication Critical patent/CN105277163A/en
Pending legal-status Critical Current

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  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

The invention provides a device for an on-line detection judgment of a height difference of two points on a workpiece. The device comprises an n-type support erected on a production line body, a photoelectric sensor, a first distance sensor and a second distance sensor; the photoelectric sensor, the first distance sensor and the second distance sensor are arranged at the top of the n-type support; the n-type support comprises two support legs and the top; and the two support legs of the n-type support are respectively fixed to two sides of the production line body, and the height of the top of the n-type support relative to the production line body is higher than the height of a to-be-detected workpiece located on the production line body. The photoelectric sensor senses whether the to-be-detected workpiece exists at a position where the n-type support on the production line body locates, and, when the photoelectric sensor senses the to-be-detected workpiece, the first distance sensor and the second distance sensor are started to check the height differences of the two points on the to-be-detected workpiece at the specific position.

Description

The device of 2 differences of height on workpiece is differentiated for on-line checkingi
Technical field
The present invention relates to automation equipment, checkout equipment, measuring equipment and association area, more particularly, the present invention relates to a kind of device differentiating 2 differences of height on workpiece for on-line checkingi.
Background technology
Current detection differentiates that the method for compressor rotor difference of height normally increases a station on a production line, and a placement equipment detects difference of height on this station.But mainly there are three problems in the method:
1. need during equipment Inspection to position workpiece, to clamp etc. a series of actions.On equipment, all parts inevitably has mechanical static error when production and processing, and inevitably has dynamic error when carrying out various action executing at every turn, so just causes equipment itself and there is metrical error.
2. checkout equipment needs when detecting to perform some row actions, and occupy the time of production, detection efficiency is low, cannot meet Production requirement when output height.
3. the check point of equipment is normally fixing, if due to check point position a little partially or just check point defectiveness can cause erroneous judgement.
Summary of the invention
Technical matters to be solved by this invention is for there is above-mentioned defect in prior art, a kind of device differentiating 2 differences of height on workpiece for on-line checkingi is provided, its error can eliminated the equipment Inspection error that causes due to the execution of various action and cause due to position deviation or the defect of check point, can when not taking the production time difference of height of 2 in accurate measuring workpieces.
In order to realize above-mentioned technical purpose, according to the present invention, provide a kind of device differentiating 2 differences of height on workpiece for on-line checkingi, comprising: be erected at the N-shaped support on streamline body and arrange photoelectric sensor, the first range sensor and the second distance sensor on N-shaped cradle top; Wherein, N-shaped support comprise two legs and top; And wherein, two legs of N-shaped support are fixed to streamline body both sides respectively, and the height when top of N-shaped support is on streamline body higher than workpiece for measurement relative to the height of streamline body.
Preferably, whether the position on photosensor senses streamline body residing for N-shaped support exists workpiece for measurement, when photosensor senses starts to check on ad-hoc location 2 differences of height on workpiece for measurement to the first range sensor during workpiece for measurement and second distance sensor.
Preferably, the device of described 2 differences of height on on-line checkingi differentiation workpiece also comprises the controller be connected with photoelectric sensor, the first range sensor and second distance sensor communication.
Preferably, workpiece for measurement is stators and rotators.
Apparatus of the present invention, can be implemented in line and measure.Do not change the running status that workpiece is original, do not need workpiece to stop, not needing Workpiece clamping to fix, as long as workpiece flows through according to original mode below device, the data of two check points on workpiece can be taken out and calculated and judge result.
Accompanying drawing explanation
By reference to the accompanying drawings, and by reference to detailed description below, will more easily there is more complete understanding to the present invention and more easily understand its adjoint advantage and feature, wherein:
Fig. 1 schematically shows the vertical view differentiating the device of 2 differences of height on workpiece for on-line checkingi according to the embodiment of the present invention.
Fig. 2 schematically shows the side view differentiating the device of 2 differences of height on workpiece for on-line checkingi according to the embodiment of the present invention.
Fig. 3 schematically shows the front elevation differentiating the device of 2 differences of height on workpiece for on-line checkingi according to the embodiment of the present invention.
Fig. 4 schematically shows the example of the workpiece that the embodiment of the present invention is measured.
Fig. 5 schematically shows another example of the workpiece that the embodiment of the present invention is measured.
It should be noted that, accompanying drawing is for illustration of the present invention, and unrestricted the present invention.Note, represent that the accompanying drawing of structure may not be draw in proportion.Further, in accompanying drawing, identical or similar element indicates identical or similar label.
Embodiment
In order to make content of the present invention clearly with understandable, below in conjunction with specific embodiments and the drawings, content of the present invention is described in detail.
Fig. 1 to Fig. 3 schematically shows the various schematic diagram differentiating the device of 2 differences of height on workpiece for on-line checkingi according to the embodiment of the present invention.
As shown in Figure 1 to Figure 3, comprise according to the device of 2 differences of height on on-line checkingi differentiation workpiece of the embodiment of the present invention: be erected at the N-shaped support 10 on streamline body 30 and arrange photoelectric sensor 3, first range sensor 1 on N-shaped support 10 top 11 and second distance sensor 2.
N-shaped support 10 comprise two legs and top 11; Wherein, two legs of N-shaped support 10 are fixed to streamline body 30 both sides respectively, and the height when top 11 of N-shaped support 10 is on streamline body 30 higher than workpiece for measurement 50 relative to the height of streamline body 50.
Like this, when workpiece for measurement 50 is by can without barrier by N-shaped support 10 when such as pallet 40 advances on streamline body 30.
Whether the position on photoelectric sensor 3 senses flow waterline body 30 residing for N-shaped support 10 exists workpiece for measurement 50, and when workpiece for measurement 50 being detected, the first range sensor 1 and second distance sensor 2 to start to check on ad-hoc location 2 differences of height on workpiece for measurement 50.
Usually need to make workpiece transfixion when the height of a measurement workpiece for prior art and carry out the technical matters measured subsequently with measurer, the present invention can realize non-contact measurement by means of high-precision laser range sensor, does not need to make workpiece transfixion during measurement.
Apparatus of the present invention, can realize automatic measurement.Device to workpiece by photosensor senses, is automatically started the first range sensor and second distance sensor, measures check point altitude information, computing, differentiation, do not need the participation of personnel, realize robotization.
Particularly, the sampling period of sensor of the present invention is very short, as long as consider that the distance (error) that the vibrations of detected workpiece in this sampling period produce is just passable, and the distance that the vibrations of workpiece produce within the calculating sensor sampling period is negligible.
And the device of the present invention's design is also very simple, is exactly that on streamline body, install a N-shaped support just passable, support is installed a photoelectric sensor (photoelectric sensor continuous firing detects in real time) and two range sensors; When workpiece flows through below support, photoelectric sensor detects testee, automatic detection trigger program (is mainly used in the digital independent to sensor, the process such as comparison, calculating, judgement), simultaneously two range sensors gather the height when the first two check point immediately, realize full-automatic on-line checkingi with this.Whole testing process does not need to perform any parts and performs an action, and therefore can eliminate the above-mentioned execution due to various action and the equipment Inspection error caused.
In addition, testing process of the present invention is automatic triggering, automatically detection, automatic discrimination, can realize full-automatic on-line checkingi.In the present invention, detected point has a width allowed, when workpiece flows through below sensor, the multiple check points allowed in width can be gathered, therefore in fact detecting is the line of multiple compositions on a table top, greatly can reduce the erroneous judgement that the above-mentioned position deviation due to check point or defect cause like this by some algorithms of mathematics.
And such as, the present invention can adopt the controller (not shown) communicated to connect with photoelectric sensor 3, first range sensor 1 and second distance sensor 2 to perform to start and to control and difference of height calculates.
As shown in Figure 4 and Figure 5, the part that reference number 100 and 200 identifies is the part (point or line) that will detect, sensor stand is fixed on streamline body, a photoelectric sensor and two range sensors are installed above, when the workpiece shown in Fig. 4 and Fig. 5 flows through below range sensor, program detects differentiation automatically.Range sensor measured place is any two points 100 and 200 in two planes of mark.
In a particular embodiment, such as, photoelectric sensor in pick-up unit is general purpose transducer, and range sensor is the sensor of Keyemce IL series.Wherein the repeatable accuracy of range sensor itself is 2um, the sensor data samples cycle is 0.33ms, the range data that controller reads two range sensors can adopt CCLink bus transfer with data transmission during relevant status data, and the communication speed of bus is 10Mbps.
Apparatus of the present invention can adopt the data sampling sensor of high speed processing, can controller, the high speed communication bus of high speed processing, state and the data of workpiece can be obtained in real time, meet process requirements to make the real-time performance of data.The present invention can differentiate and the device of 2 differences of height on workpiece achieve on-line measurement by on-line checkingi; Realize automatically measuring; The topology layout of device etc.; The parts of high speed processing ability and communication.
When the difference of height of specific implementation range sensor is measured, in order to improve measuring accuracy, following method can also be taked: the first range sensor 1 and second distance sensor 2 are fixed on the new support of inactive n, the calibrated bolck that one has calibrated altitude is placed at measurement station, then the first range sensor 1 is a relative to the distance of calibrated bolck, second distance sensor 2 is b relative to the distance of calibrated bolck, and the difference of such a-b is a fixed value.When workpiece flows through this position, to be measured on workpiece is also two planes, now the first range sensor 1 is a1 relative to the distance of workpiece stator measuring surface, second distance sensor 2 is b1 relative to the distance of workpiece rotor measuring surface, then the difference in height of stators and rotators two measuring surface is (a-a1)-(b-b1).Like this, the error that the difference in height between the first range sensor 1 and second distance sensor 2 causes can be rejected.
This apparatus system carries out " online " process, namely not needing that measured workpiece is stopped when carrying out detecting and judging, not needing Workpiece clamping to fix, as long as workpiece just can take out the difference in height data needed according to the operation of original state, judge.(and the miscellaneous equipment of prior art generally needs workpiece to stop, and then Workpiece clamping is fixed, and is then measuring).
Secondly, this device carries out automatically to the taking-up of workpiece difference of height data, computing, judgement, namely automatically triggers these operations (reading data, computing, judgement) when photoelectric sensor detects workpiece, and does not need the participation of personnel.
It should be noted that, unless stated otherwise or point out, otherwise the term " first " in instructions, " second ", " the 3rd " etc. describe only for distinguishing each assembly, element, step etc. in instructions, instead of for representing logical relation between each assembly, element, step or ordinal relation etc.
Be understandable that, although the present invention with preferred embodiment disclose as above, but above-described embodiment and be not used to limit the present invention.For any those of ordinary skill in the art, do not departing under technical solution of the present invention ambit, the technology contents of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solution of the present invention protection.

Claims (4)

1. differentiate a device for 2 differences of height on workpiece for on-line checkingi, it is characterized in that comprising: be erected at the N-shaped support on streamline body and be arranged in photoelectric sensor, the first range sensor and the second distance sensor on N-shaped cradle top; Wherein, N-shaped support comprise two legs and top; And wherein, two legs of N-shaped support are fixed to streamline body both sides respectively, and the height when top of N-shaped support is on streamline body higher than workpiece for measurement relative to the height of streamline body.
2. the device differentiating 2 differences of height on workpiece for on-line checkingi according to claim 1, it is characterized in that, whether the position on photosensor senses streamline body residing for N-shaped support exists workpiece for measurement, the first range sensor and second distance sensor in photosensor senses to starting to check on ad-hoc location 2 differences of height on workpiece for measurement during workpiece for measurement.
3. the device differentiating 2 differences of height on workpiece for on-line checkingi according to claim 1 and 2, characterized by further comprising the controller be connected with photoelectric sensor, the first range sensor and second distance sensor communication.
4. the device differentiating 2 differences of height on workpiece for on-line checkingi according to claim 1 and 2, it is characterized in that, workpiece for measurement is stators and rotators.
CN201410354152.1A 2014-07-24 2014-07-24 Device for on-line detection judgment of height difference of two points on workpiece Pending CN105277163A (en)

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CN201410354152.1A CN105277163A (en) 2014-07-24 2014-07-24 Device for on-line detection judgment of height difference of two points on workpiece

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Application Number Priority Date Filing Date Title
CN201410354152.1A CN105277163A (en) 2014-07-24 2014-07-24 Device for on-line detection judgment of height difference of two points on workpiece

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CN105277163A true CN105277163A (en) 2016-01-27

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111473732A (en) * 2020-04-15 2020-07-31 合肥惠利普电机有限公司 Motor long and short shaft automatic identification system, cover riveting machine and automatic identification method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59102106A (en) * 1982-12-03 1984-06-13 Hitachi Denshi Syst Service Kk Inspecting system
JPS61165608A (en) * 1985-01-18 1986-07-26 Hitachi Ltd Film thickness measuring apparatus
CN101685003A (en) * 2008-09-25 2010-03-31 向熙科技股份有限公司 Measurement system and method for measuring deformation values in noncontact way
CN202471037U (en) * 2011-12-29 2012-10-03 区有辉 Ceramic brick thickness automatic measuring device
CN203231743U (en) * 2013-03-18 2013-10-09 丁顺东 Device for online detection and automatic marking of qualified products based on linearity
CN203323703U (en) * 2013-05-14 2013-12-04 长春迪瑞医疗科技股份有限公司 Height difference accurate measuring apparatus
CN204313793U (en) * 2014-12-30 2015-05-06 陕西科技大学 A kind of device of non-contact detection workpiece form and position tolerance

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59102106A (en) * 1982-12-03 1984-06-13 Hitachi Denshi Syst Service Kk Inspecting system
JPS61165608A (en) * 1985-01-18 1986-07-26 Hitachi Ltd Film thickness measuring apparatus
CN101685003A (en) * 2008-09-25 2010-03-31 向熙科技股份有限公司 Measurement system and method for measuring deformation values in noncontact way
CN202471037U (en) * 2011-12-29 2012-10-03 区有辉 Ceramic brick thickness automatic measuring device
CN203231743U (en) * 2013-03-18 2013-10-09 丁顺东 Device for online detection and automatic marking of qualified products based on linearity
CN203323703U (en) * 2013-05-14 2013-12-04 长春迪瑞医疗科技股份有限公司 Height difference accurate measuring apparatus
CN204313793U (en) * 2014-12-30 2015-05-06 陕西科技大学 A kind of device of non-contact detection workpiece form and position tolerance

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111473732A (en) * 2020-04-15 2020-07-31 合肥惠利普电机有限公司 Motor long and short shaft automatic identification system, cover riveting machine and automatic identification method
CN111473732B (en) * 2020-04-15 2021-08-06 合肥惠利普电机有限公司 Motor long and short shaft automatic identification system, cover riveting machine and automatic identification method

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Address after: 201206 Pudong New Area Jinqiao Ning Road, Shanghai, No. 888

Applicant after: Shanghai Haili Electrical Appliance Co. Ltd.

Address before: 201206 Pudong New Area Jinqiao Ning Road, Shanghai, No. 888

Applicant before: Rili Electric Appliance Co., Ltd., Shanghai

RJ01 Rejection of invention patent application after publication
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Application publication date: 20160127