CN108608104A - Lifetime of resistance spot welding electrode spatiality device for fast detecting and method - Google Patents
Lifetime of resistance spot welding electrode spatiality device for fast detecting and method Download PDFInfo
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- CN108608104A CN108608104A CN201810436136.5A CN201810436136A CN108608104A CN 108608104 A CN108608104 A CN 108608104A CN 201810436136 A CN201810436136 A CN 201810436136A CN 108608104 A CN108608104 A CN 108608104A
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- electrode
- rotating arm
- dimensional laser
- distance measuring
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/36—Auxiliary equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/10—Spot welding; Stitch welding
- B23K11/11—Spot welding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Resistance Welding (AREA)
Abstract
The present invention relates to a kind of lifetime of resistance spot welding electrode spatiality device for fast detecting and methods, non-contact measurement is carried out using two-dimensional laser distance measuring sensor, electrode contour curve is generated by special-purpose software algorithm, and the spatialities such as the angle offset of upper/lower electrode, end cross offset are calculated automatically, provide technological means for the on-line checking and adjustment of spot-wedling electrode.Detection device is made of two-dimensional laser distance measuring sensor, adjustment seat, rotating arm, portable detector, rotary encoder and holder.Rotary encoder is mounted on carriage center, and output shaft end is equipped with rotating arm.Rotating arm can be rotated 360 ° around carriage center, and determine its angle coordinate by rotary encoder.Rotating arm upper end is equipped with sensor adjustment seat, and two-dimensional laser distance measuring sensor is mounted in adjustment seat.Portable detector is installed on rotating arm, carry display screen, can real-time display electrode profile detection curve and angle offset, end cross offset etc. calculated values.
Description
Technical field
The present invention relates to welding quality control fields, more particularly to a kind of resistance spot welding of equipment manufacturing welding technology field
Electrode space state Fast Detection Technique, espespecially a kind of lifetime of resistance spot welding electrode spatiality device for fast detecting and method.
Background technology
Currently, major weld process used by the production of vehicular traffic car body is resistance spot welding, number is comprised about per trolley
Thousand solder joints, stable quality, reliable tack-weld are the key that embody Auto-body manufacturing level.Welding is joined in the welding process
Number is monitored on-line, has been the key technology of current spot welding field of quality control.
In resistance spot welding process parameter, the forming process shadow of the spatiality of upper/lower electrode to tack-weld inside nugget
Sound is extremely important.With the progress of welding process, upper/lower electrode constantly accumulates a degree of abrasion, upset, bending, result
Electrode can be caused to be had an impact with contact condition, pressurized state and current distribution of the welded piece in welding, and then influence to connect
Head welding quality.Therefore, the spatiality periodically to upper/lower electrode is needed to be detected during welding production, to ensure that its is right
The forms such as neutrality, angle offset meet technological requirement.Currently, being mostly to use sample for the detection method of spot-wedling electrode spatiality
The means qualitatively such as plate seriously constrain the development of point quality control in accuracy of detection etc. Shortcomings.Therefore,
How on-line checking and adjustment quickly and accurately to be carried out to spot-wedling electrode spatiality, is then to further increase resistance spot welding weldering
Connect the key technology of quality.
Invention content
The purpose of the present invention is to provide a kind of lifetime of resistance spot welding electrode spatiality device for fast detecting and methods, solve
The above problem of the existing technology.The present invention carries out non-contact measurement using two-dimensional laser distance measuring sensor, passes through software
Algorithm generates electrode contour curve, and calculates the spatialities such as the angle offset of upper/lower electrode, end cross offset automatically, for point
The on-line checking of welding electrode provides technological means with adjustment.
The above-mentioned purpose of the present invention is achieved through the following technical solutions：
Lifetime of resistance spot welding electrode spatiality device for fast detecting, including two-dimensional laser distance measuring sensor 1, adjustment seat 2, rotating arm 3,
Portable detector 4, rotary encoder 5 and holder 6, the rotary encoder 5 are mounted on 6 center of holder, the output shaft of holder 6
End is equipped with rotating arm 3；Portable detector 4 is installed on rotating arm 3；Rotating arm 3 can drive portable detector 4 around holder
6 centers rotate 360 °, and determine its rotation angle by rotary encoder 5；3 upper end of rotating arm is equipped with the tune of sensor
Seat 2 is saved, two-dimensional laser distance measuring sensor 1 is mounted in adjustment seat 2.
The two-dimensional laser distance measuring sensor 1 is high-precision linear profile measurement sensor, can pass through the hair of laser
The time difference with laser propagation in receive process is penetrated, each profile point position on straight line is fed back.
The rotary encoder 5 is photoelectric rotary coder, can export the rotation angle of output shaft to portable
Formula detector 4.
The portable detector 4 carries display screen 41, passes through signal wire and two-dimensional laser distance measuring sensor 1 and rotation
Encoder 5 be connected, can real-time display electrode profile detection curve and angle offset, end cross offset etc. calculated values.
Another object of the present invention is to provide a kind of lifetime of resistance spot welding electrode spatiality rapid detection methods, including as follows
Step：
Step（1）, when being detected, a whole set of lifetime of resistance spot welding electrode spatiality device for fast detecting is positioned under soldering turret
Side, makes 6 rotation center face electrode of holder；
Step（2）, left and right adjustment adjustment seat 2 posture, make the auxiliary light 11 that two-dimensional laser distance measuring sensor 1 is sent out and power on
Polar axis line or lower electrode axis overlap；
Step（3）, rotation rotating arm 3 so that its is driven 1 to the first angle position to be detected of two-dimensional laser distance measuring sensor；
Step（4）, in the first measure angular positions, two-dimensional laser distance measuring sensor 1 emits a fill-in light along electrode axis
Line 11 is projected to electrode side, while measuring auxiliary 11 corresponding electrode side profile of light；Two-dimensional laser distance measuring sensor 1 to
The range direction of electrode is X to electrode axis direction is Z-direction；Real-time display fill-in light on the display screen 41 of portable detector 4
11 corresponding electrode side contour curve of line, and phase of the calculating upper/lower electrode in the upper/lower electrode of current detection angle position automatically
To the termination offset Δ of axis inclination angle θ and upper/lower electrode；
Step（5）, manually adjust 3 angle position of rotating arm, so that two-dimensional laser distance measuring sensor 1 is rotated to second along electrode axis
Measure angular positions, while angle value is obtained by encoder 5；Repeat step（4）, measure the profile in the second measure angular positions
Curve simultaneously calculates relative axis inclination angle and electrode tip offset；
Step（6）, repeat step（5）, until completing the detection of required whole angle positions.
The beneficial effects of the present invention are：For the quick testing requirements of lifetime of resistance spot welding electrode working condition, the present invention passes through
Electrode outer profile non-contact measurement and the quick computing technique of axis, the portable for realizing resistance spot welding equipment upper/lower electrode exist
Line detects, and substantially increases the quality control effect of resistance spot welding.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, this hair
Bright illustrative example and its explanation is not constituted improper limitations of the present invention for explaining the present invention.
Fig. 1 is the lifetime of resistance spot welding electrode working condition device for fast detecting structural schematic diagram of the present invention；
Fig. 2 is that the lifetime of resistance spot welding electrode working condition device for fast detecting end of the present invention is adjusted and the detection of motor spatiality is shown
It is intended to；
Fig. 3 is that the lifetime of resistance spot welding electrode working condition device for fast detecting measurement angle of the present invention converts schematic diagram；
Fig. 4 is the electrode axis and end portion offsets schematic diagram calculation of the present invention.
In figure：1, two-dimensional laser distance measuring sensor；11, light is assisted；2, adjustment seat；3, rotating arm；4, portable detects
Instrument；41, display screen；5, rotary encoder；6, holder；The relative axis inclination angle of θ, upper/lower electrode；Δ, the end of upper/lower electrode are inclined
Shifting amount.
Specific implementation mode
The detailed content and its specific implementation mode further illustrated the present invention below in conjunction with the accompanying drawings.
Shown in Fig. 1 to Fig. 4, lifetime of resistance spot welding electrode spatiality device for fast detecting of the invention and method use
Two-dimensional laser distance measuring sensor carries out non-contact measurement, generates electrode contour curve by special-purpose software algorithm, and count automatically
The spatialities such as angle offset, the end cross offset of upper/lower electrode are calculated, skill is provided for the on-line checking and adjustment of spot-wedling electrode
Art means.Detection device is by two-dimensional laser distance measuring sensor, adjustment seat, rotating arm, portable detector, rotary encoder and branch
Frame forms.Rotary encoder is mounted on carriage center, and output shaft end is equipped with rotating arm.Rotating arm can be carried out around carriage center
360 ° of rotations, and its angle coordinate is determined by rotary encoder.Rotating arm upper end is equipped with sensor adjustment seat, two-dimensional laser
Distance measuring sensor is mounted in adjustment seat.Portable detector is installed on rotating arm, carries display screen, it can real-time display electrode
The calculated values such as the detection curve and angle offset of profile, end cross offset.
Lifetime of resistance spot welding electrode spatiality device for fast detecting shown in Figure 1, of the invention, including two-dimensional laser ranging
Sensor 1, adjustment seat 2, rotating arm 3, portable detector 4, rotary encoder 5 and holder 6, the rotary encoder 5 are installed
At 6 center of holder, the output shaft end of holder 6 is equipped with rotating arm 3；Portable detector 4 is installed on rotating arm 3；Rotating arm 3
Portable detector 4 can be driven to be rotated 360 ° around 6 center of holder, and its rotation angle is determined by rotary encoder 5；Rotation
3 upper end of pivoted arm is equipped with the adjustment seat 2 of sensor, and two-dimensional laser distance measuring sensor 1 is mounted in adjustment seat 2.
The two-dimensional laser distance measuring sensor 1 is high-precision linear profile measurement sensor, can pass through the hair of laser
The time difference with laser propagation in receive process is penetrated, each profile point position on straight line is fed back.
The rotary encoder 5 is photoelectric rotary coder, can export the rotation angle of output shaft to portable
Formula detector 4.
The portable detector 4 carries display screen 41, passes through signal wire and two-dimensional laser distance measuring sensor 1 and rotation
Encoder 5 be connected, can real-time display electrode profile detection curve and angle offset, end cross offset etc. calculated values.
Shown in Fig. 2 and Fig. 3, lifetime of resistance spot welding electrode spatiality rapid detection method of the invention, including following step
Suddenly：
Step（1）, when being detected, a whole set of lifetime of resistance spot welding electrode spatiality device for fast detecting is positioned under soldering turret
Side, makes 6 rotation center face electrode of holder；
Step（2）, left and right adjustment adjustment seat 2 posture, make the auxiliary light 11 that two-dimensional laser distance measuring sensor 1 is sent out and power on
Polar axis line or lower electrode axis overlap；
Step（3）, rotation rotating arm 3 so that its is driven 1 to the first angle position to be detected of two-dimensional laser distance measuring sensor；
Step（4）, in the first measure angular positions, two-dimensional laser distance measuring sensor 1 emits a fill-in light along electrode axis
Line 11 is projected to electrode side, while measuring auxiliary 11 corresponding electrode side profile of light；Two-dimensional laser distance measuring sensor 1 to
The range direction of electrode is X to electrode axis direction is Z-direction；Real-time display fill-in light on the display screen 41 of portable detector 4
11 corresponding electrode side contour curve of line, and phase of the calculating upper/lower electrode in the upper/lower electrode of current detection angle position automatically
To the termination offset Δ of axis inclination angle θ and upper/lower electrode；
Step（5）, manually adjust 3 angle position of rotating arm, so that two-dimensional laser distance measuring sensor 1 is rotated to second along electrode axis
Measure angular positions, while angle value is obtained by encoder 5；Repeat step（4）, measure the profile in the second measure angular positions
Curve simultaneously calculates relative axis inclination angle and electrode tip offset；
Step（6）, repeat step（5）, until completing the detection of required whole angle positions.
Shown in Figure 4, when being detected on angle position to be checked, two-dimensional laser sensor 1 measures fill-in light in real time
11 corresponding electrode side profile of line, and generate contour curve.Two-dimensional laser sensor 1 to electrode range direction be X to, electricity
Pole axis direction is Z-direction.Real-time display contour curve on the display screen 41 of portable detector 4, and power-on and power-off are calculated automatically
The relative axis inclination angle theta of pole and the termination offset Δ of upper/lower electrode.
Embodiment：
It is illustrated by taking stainless steel car body spot welding production soldering turret detection used as an example below：
（1）, soldering turret pattern be c-type, 0~180 ° of detection range, every 30 ° of test positions.The X of two-dimensional laser sensor 1 to
Range 50mm, Z-direction range 120mm, measurement accuracy 50um.
（2）, when being detected, a whole set of lifetime of resistance spot welding electrode spatiality device for fast detecting is positioned under soldering turret
Side, makes 6 rotation center face electrode of holder.
（3）, left and right adjustment adjustment seat 2 posture, make the auxiliary light 11 that two-dimensional laser distance measuring sensor 1 is sent out and power on
Polar axis line or lower electrode axis overlap.
（4）, rotation rotating arm 3 make it drive two-dimensional laser distance measuring sensor 1 to measuring angle to be checked.
（5）, in the angle position to be detected, two-dimensional laser distance measuring sensor 1 emits a fill-in light along electrode axis
Line 11 is projected to electrode side, while measuring auxiliary 11 corresponding electrode side profile of light.Two-dimensional laser distance measuring sensor 1 to
The range direction of electrode is X to electrode axis direction is Z-direction.Real-time display profile on the display screen 41 of portable detector 4
Curve, and the termination offset Δ of upper/lower electrode relative axis inclination angle theta in this direction and upper/lower electrode is calculated automatically.
（6）, manually adjust 3 angle position of rotating arm, so that two-dimensional laser distance measuring sensor 1 is rotated certain angle along electrode axis
Degree（Angle value is obtained by rotary encoder 5）.Previous step is repeated, the contour curve on the angle direction is measured and is calculated opposite
Axis inclination angle and electrode tip offset, until completing the detection of required whole angle positions.
Under regular service conditions described in this example, using electricity when detection device of the present invention progress soldering turret detection
Pole angular error≤0.1 °, end portion offsets error≤0.05mm, the time that each position detection is consumed≤5s.
The foregoing is merely the preferred embodiments of the present invention, are not intended to restrict the invention, for the technology of this field
For personnel, the invention may be variously modified and varied.All any modification, equivalent substitution, improvement and etc. made for the present invention,
It should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of lifetime of resistance spot welding electrode spatiality device for fast detecting, it is characterised in that：Including two-dimensional laser distance measuring sensor
（1）, adjustment seat（2）, rotating arm（3）, portable detector（4）, rotary encoder（5）And holder（6）, the rotary encoder
（5）Mounted on holder（6）Center, holder（6）Output shaft end rotating arm is installed（3）；Rotating arm（3）On portable is installed
Detector（4）；Rotating arm（3）Portable detector can be driven（4）Around holder（6）Center rotates 360 °, and passes through rotation
Encoder（5）Determine its rotation angle；Rotating arm（3）Upper end is equipped with the adjustment seat of sensor（2）, two-dimensional laser ranging sensing
Device（1）Mounted on adjustment seat（2）On.
2. lifetime of resistance spot welding electrode spatiality device for fast detecting according to claim 1, it is characterised in that：Described two
Tie up laser range sensor（1）It, can be by the transmitting and receive process of laser for high-precision linear profile measurement sensor
The time difference of laser propagation feeds back each profile point position on straight line.
3. lifetime of resistance spot welding electrode spatiality device for fast detecting according to claim 1, it is characterised in that：The rotation
Turn encoder（5）For photoelectric rotary coder, the rotation angle of output shaft can be exported to portable detector（4）.
4. lifetime of resistance spot welding electrode spatiality device for fast detecting according to claim 1, it is characterised in that：It is described just
Take formula detector（4）Included display screen（41）, pass through signal wire and two-dimensional laser distance measuring sensor（1）And rotary encoder（5）
It is connected, the detection curve and angle offset of real-time display electrode profile, end cross offset.
5. a kind of lifetime of resistance spot welding electrode spatiality rapid detection method, it is characterised in that：It comprises the following steps：
Step（1）, when being detected, a whole set of lifetime of resistance spot welding electrode spatiality device for fast detecting is positioned under soldering turret
Side, makes holder（6）Rotation center face electrode；
Step（2）, left and right adjustment adjustment seat（2）Posture, make two-dimensional laser distance measuring sensor（1）The auxiliary light sent out（11）
It is overlapped with top electrode axis or lower electrode axis；
Step（3）, rotation rotating arm（3）It is set to drive two-dimensional laser distance measuring sensor（1）To the first angle position to be detected；
Step（4）, in the first measure angular positions, two-dimensional laser distance measuring sensor（1）Auxiliary of the transmitting one along electrode axis
Light（11）It is projected to electrode side, while measuring auxiliary light（11）Corresponding electrode side profile；Two-dimensional laser ranging passes
Sensor（1）Range direction to electrode is X to electrode axis direction is Z-direction；Portable detector（4）Display screen（41）On
Real-time display assists light（11）Corresponding electrode side contour curve, and upper/lower electrode is calculated automatically in current detection angle position
The relative axis inclination angle theta for the upper/lower electrode set and the termination offset Δ of upper/lower electrode；
Step（5）, manually adjust rotating arm（3）Angle position makes two-dimensional laser distance measuring sensor（1）It is rotated to along electrode axis
Second measure angular positions, while by encoder（5）Obtain angle value；Repeat step（4）, measure in the second measure angular positions
Contour curve and calculate relative axis inclination angle and electrode tip offset；
Step（6）, repeat step（5）, until completing the detection of required whole angle positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810436136.5A CN108608104B (en) | 2018-05-09 | 2018-05-09 | Rapid detection device and method for space state of resistance spot welding electrode |
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|---|---|---|---|
| CN201810436136.5A CN108608104B (en) | 2018-05-09 | 2018-05-09 | Rapid detection device and method for space state of resistance spot welding electrode |
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| CN108608104A true CN108608104A (en) | 2018-10-02 |
| CN108608104B CN108608104B (en) | 2020-06-05 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109877437A (en) * | 2019-03-26 | 2019-06-14 | 武汉百舸自动化工程有限责任公司 | A kind of Resistance welding gun to neutral detection device and method |
| CN111347136A (en) * | 2020-04-21 | 2020-06-30 | 南京工程学院 | Arc welding robot tool coordinate system on-line quick calibration system and method thereof |
| CN111397543A (en) * | 2020-03-31 | 2020-07-10 | 一汽奔腾轿车有限公司 | Full-automatic spot welding electrode centering detection device and detection method thereof |
| CN113894399A (en) * | 2021-11-18 | 2022-01-07 | 中车长春轨道客车股份有限公司 | Non-contact detection system for space state of resistance spot welding electrode |
| CN116571861A (en) * | 2023-07-12 | 2023-08-11 | 福建省特种设备检验研究院龙岩分院 | Online monitoring device and method for wear of spot welding electrode cap |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113894399A (en) * | 2021-11-18 | 2022-01-07 | 中车长春轨道客车股份有限公司 | Non-contact detection system for space state of resistance spot welding electrode |
| CN116571861A (en) * | 2023-07-12 | 2023-08-11 | 福建省特种设备检验研究院龙岩分院 | Online monitoring device and method for wear of spot welding electrode cap |
| CN116571861B (en) * | 2023-07-12 | 2023-10-10 | 福建省特种设备检验研究院龙岩分院 | Online monitoring device and method for wear of spot welding electrode cap |
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