CN104111196A - Wedge-shaped pressure testing machine for spot-welding guide plate and method for detecting strength of welding points of guide plate - Google Patents
Wedge-shaped pressure testing machine for spot-welding guide plate and method for detecting strength of welding points of guide plate Download PDFInfo
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- CN104111196A CN104111196A CN201410364451.3A CN201410364451A CN104111196A CN 104111196 A CN104111196 A CN 104111196A CN 201410364451 A CN201410364451 A CN 201410364451A CN 104111196 A CN104111196 A CN 104111196A
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- guide plate
- spot welding
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- wedge shape
- shape briquetting
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Abstract
The invention discloses a wedge-shaped pressure testing machine for a spot-welding guide plate and a method for detecting the strength of welding points of the guide plate. The wedge-shaped pressure testing machine is characterized in that a platform is arranged in the middle of a stander, wherein a guide plate clamp for clamping the spot-welding guide plate is arranged on the platform, a wedge-shaped pressing block is arranged right above the guide plate clamp and on a lifting guide rail mechanism and is driven by a servo motor to lift along the lifting guide rail mechanism, a pressure sensor for detecting the pressure borne by the wedge-shaped pressing block is arranged above the wedge-shaped pressing block, and the spot-welding guide plate is connected with a displacement sensor for detecting residual deformation of a guide plate chain trough; the wedge-shaped pressure testing machine further comprises a control system for controlling the pressure testing machine to work, and the servo motor, the pressure sensor and the displacement sensor are in communication connection with the control system. According to the wedge-shaped pressure testing machine, the strength of the welding points of the guide plate can be rapidly determined, so that the qualities of the guide plates produced in batches can be conveniently tracked and motored.
Description
Technical field
The invention belongs to chain saw guide plate detection technique field, be specifically related to spot welding guide plate wedge penetration test machine and corresponding detection method.
Background technology
Present widely used chain saw adopts stacked guide plate conventionally, if publication number is the stacked guide plate of the disclosed one of 102837335A Chinese invention patent application, formed by two blocks of side plates and the central layer that is connected in the middle of biside plate, biside plate is by high-quality medium carbon alloy steel plate Blanking Shaping, then carry out bulk heat treatmet to high rigidity more than 40HRC, punching press outside side plate again, make inner side form the circular salient point of two row, finally biside plate and central layer are superimposed together and are put into pressurization energising between two battery lead plates of projection welder, when welding, electric current concentrates on two row salient points, form the double-deck nugget of two row at biside plate and salient point place, central layer interface very soon, and compacted pressing, the disposable entirety that is welded into.
This stacked guide plate is after welding completes, need to detect the intensity of guide plate solder joint, traditional detection method, to take off solder joint from the guide plate cutting (two-layer outside plate right-angled intersection cutting) of reaching the standard grade, carry out quiet broken tensile test, generally need within 2-3 hour, just can complete inspection, and complicated operation, can not judge fast the intensity of guide plate solder joint, not be suitable for the guide plate quality of tracing and monitoring batch production.
Summary of the invention
Technical matters to be solved by this invention is just to provide a kind of spot welding guide plate wedge penetration test machine and guide plate Joint Strength detection method, solving guide plate Joint Strength, to detect complicated operation, time long, is not suitable for tracing and monitoring and produces in batches the technical matters of guide plate quality.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: spot welding guide plate wedge penetration test machine, comprise frame, the middle part of described frame is provided with platform, described platform is provided with the guide plate fixture for clamping spot welding guide plate, directly over described guide plate fixture, be provided with wedge shape briquetting, described wedge shape briquetting is located in riser guide mechanism, driven by servomotor wedge shape briquetting is along the lifting of riser guide mechanism, described wedge shape briquetting top is provided with the pressure transducer that bears pressure for detection of wedge shape briquetting, described spot welding guide plate is connected with the displacement transducer for detection of guide plate key way residual deformation amount, also comprise the control system of controlling this pressure testing machine work, described servomotor, pressure transducer and displacement transducer and control system communication connection.
Preferably, described riser guide mechanism comprises guide rod and leading screw, and a movable block is slidably mounted on guide rod, and described movable block is by nut and leading screw mix proportion screw-nut body, and described movable block is connected with wedge shape briquetting by contiguous block.
Preferably, the thickness of described wedge shape briquetting is 7mm, and the angle of the wedge shaped pressure head of described wedge shape briquetting is 60 °.
Preferably, the locating piece and the clamp that comprise parallel setting of described guide plate fixture, between described locating piece and clamp, clamping forms the clamping slot of putting into for spot welding guide plate, described clamp is provided with the clamping bar that stretches into clamping slot, and described clamping bar is pressed so that the spot welding guide plate of putting into clamping slot is clamped by spring top.
Preferably, described displacement transducer comprises the data collecting probe that is clamped in spot welding guide plate solder joint to be measured below, described data collecting probe is upwards arranged side by side two test rods, two test rods are positioned at spot welding guide plate both sides, the head end of test rod is provided with detection head, and detection head is pressed together on solder joint to be measured outside.
In addition, the technical scheme that adopts above-mentioned spot welding guide plate wedge penetration test machine to carry out the detection of spot welding guide plate Joint Strength is:
First, clamping spot welding guide plate on guide plate fixture, is positioned under wedge shape briquetting solder joint to be measured on spot welding guide plate, just to guide plate key way, displacement transducer is arranged on spot welding guide plate simultaneously; Secondly, the descending wedge shaped pressure head that makes of driven by servomotor wedge shape briquetting is pressed into guide plate key way, and when the pressure sensing when pressure transducer reaches setting value, servomotor stops operating; Then, driven by servomotor wedge shape briquetting is up, exits guide plate key way, and simultaneous displacement sensor is measured the permanent set value of guide plate key way automatically; Finally, permanent set value and standard value are compared and judge that whether Joint Strength is qualified.
Preferably, insert after guide plate key way at wedge shaped pressure head, add loading force F wedge shaped pressure head is slowly pressed down, guide plate key way is squeezed outer, and deformation produces extruding force to wedge shaped pressure head, guide plate key way continuous expansion, the force value that deformation produces increases gradually, and in the time that force value is loaded into the test pressure of setting, servomotor stops operating, keep after 5 seconds, servomotor reversion drives wedge shape briquetting upstroke.
Preferably, the permanent set f after load(ing) point unloading is residual deflection, detects and record deformation values f by displacement transducer, and whether finally feeding back to control system and standard value, to compare judgement Joint Strength qualified.
Further, when completing, detection on display, automatically generated pressure curve table by control system.
The present invention is for the intensity of the detection spot welding guide plate solder joint of energy quicklook, to adapt to the product examine needs of mass production field, design a kind of pressure testing machine, this pressure testing machine is pressed into guide plate key way with the wedge shape briquetting of 60 ° with the pressure of regulation, and detect wedge shape briquetting by displacement transducer and exit the deflection after guide plate key way, judge that with this whether this Joint Strength is up to standard, have simple to operate, advantage easy to use, therefore the present invention can judge the intensity of guide plate solder joint fast, facilitates the guide plate quality of tracing and monitoring batch production.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the invention will be further described:
Fig. 1 is the front view of spot welding guide plate wedge penetration test machine of the present invention;
Fig. 2 is the side view of spot welding guide plate wedge penetration test machine of the present invention;
Fig. 3 is the matching chart of displacement transducer and spot welding guide plate;
Fig. 4 is the schematic diagram that wedge shaped pressure head inserts guide plate key way.
Embodiment
Illustrate spot welding guide plate wedge penetration test machine and use this spot welding guide plate wedge penetration test machine to carry out the method that spot welding guide plate Joint Strength detects below in conjunction with Fig. 1 to Fig. 4.
As depicted in figs. 1 and 2, this spot welding guide plate wedge penetration test machine comprises frame 1, the middle part of described frame 1 is provided with platform 12, described platform 12 is provided with the guide plate fixture 2 for clamping spot welding guide plate 5, directly over described guide plate fixture 2, be provided with wedge shape briquetting 4, described wedge shape briquetting 4 is located in riser guide mechanism 3, servomotor 36 drives wedge shape briquetting 4 along 3 liftings of riser guide mechanism, between servomotor 36 and platform 12, be provided with and be connected cylinder 13, described wedge shape briquetting 4 tops are provided with the pressure transducer 41 that bears pressure for detection of wedge shape briquetting.
Wherein, riser guide mechanism 3 comprises guide rod 31 and leading screw 32, and guide rod is provided with four altogether, and is arranged at one foursquare four jiaos, guide rod 31 and leading screw 32 upper ends are installed on upper platen 11, and leading screw lower end connects with the output shaft of servomotor 36 by shaft coupling 35.One movable block 33 is slidably mounted on guide rod, described movable block 33 is by nut and leading screw mix proportion screw-nut body, described movable block 33 is connected with wedge shape briquetting 4 by contiguous block 34, pressure transducer 41 is arranged on contiguous block 34, and the pressure-acting that wedge shape briquetting 4 bears the thereon pressure transducer 41 of side reaches the effect that detects wedge shape briquetting 4 pressure.
The locating piece 21 and the clamp 22 that comprise parallel setting of described guide plate fixture 2, between described locating piece 21 and clamp 22, clamping forms the clamping slot of putting into for spot welding guide plate 5.Further, described clamp is provided with the clamping bar that stretches into clamping slot, described clamping bar is located in a telescopic hole, also be provided with spring at telescopic hole, press clamping bar that the spot welding guide plate of putting into clamping slot is clamped by spring top, on clamp, be also threaded and be provided with set screw simultaneously, set screw is located at spring rear, dilatability by setting nut regulating spring is to regulate the clamping force of clamping bar, and the position of clamping slot and width design according to spot welding guide plate and wedge shape briquetting, after making spot welding guide plate put into clamping slot, clamped by clamping bar, and make the just wedge shaped pressure head to wedge shape briquetting 4 of guide plate key way 51 of spot welding guide plate.
As shown in Figure 3, described spot welding guide plate 5 is connected with the displacement transducer 6 for detection of guide plate key way 51 residual deformation amounts, described displacement transducer 6 comprises the data collecting probe that is clamped in spot welding guide plate 5 solder joint to be measured below, described data collecting probe is upwards arranged side by side two test rods 61, two test rods 61 are positioned at spot welding guide plate both sides, the head end of test rod is provided with detection head 62, and detection head is pressed together on solder joint to be measured outside.Because detection head 62 is clamped in solder joint to be measured outside, therefore in the time that wedge shaped pressure head inserts guide plate key way and adds loading force and press down, guide plate key way is squeezed outer, detection head 62 is applied to acting force simultaneously, two test rods 61 are also outwards opened, and its angle of opening is collected and is converted into the deflection data of guide plate key way by data collecting probe.
This spot welding guide plate wedge penetration test machine is provided with the control system of controlling this pressure testing machine work, described servomotor, pressure transducer and displacement transducer and control system communication connection, like this, the data of pressure transducer and displacement transducer collection all pass to control system, control system is processed these data, then the work of FEEDBACK CONTROL servomotor.
The thickness of described wedge shape briquetting is 7mm, and the angle of the wedge shaped pressure head of described wedge shape briquetting is 60 °, experimental results show that such design is conducive to accurately detect spot welding guide plate Joint Strength most.
Spot welding guide plate Joint Strength detection method specifically comprises the steps:
(1) spot welding guide plate 5 is placed vertically on guide plate fixture 2 and clamped, adjust spot welding guide plate 5 positions, solder joint to be measured is positioned under wedge shape briquetting 4, and just to the guide plate key way 51 on spot welding guide plate 2, as shown in Figure 3, displacement transducer 6 clampings are arranged on spot welding guide plate 5, and wherein data collecting probe is positioned under solder joint to be measured, and 62 of detection heads are pressed together on solder joint to be measured outside.
(2) the supporting testing software of pressure testing machine is installed on computers, computer is connected with pressure testing machine, starts computer and testing machine, the testing software on operating computer, select suitable test pressure 1250N, to " power ", " displacement ", the first zero clearing of " distortion " 3 data.
(3) click and start, servomotor 36 drives leading screw 32 to drive movable block 33 downward movements with certain initial velocity, drive the wedge shape briquetting 4 fixing by contiguous block 34 and movable block 33 and the pressure transducer 41 of top thereof to move down simultaneously, wedge shaped pressure head on wedge shape briquetting 4 inserts guide plate key way 51, adding loading force F slowly presses down, guide plate key way is squeezed outer, deformation produces extruding force to wedge shaped pressure head, force value is surveyed by the pressure transducer of wedge shape briquetting top, slow descending guide plate key way continuous expansion, the force value that deformation produces increases gradually, when force value is loaded into the test pressure 1250N of setting, servomotor 36 stops operating, keep after 5 seconds, servomotor reversion drives leading screw upstroke, wedge shape briquetting rises and exits guide plate key way.As shown in Figure 4, the permanent set f=f1-f2 after load(ing) point unloading, is residual deflection, by being clipped in the deformation values f of the data collecting probe record on spot welding guide plate 5, and remaining Nao Du≤1.2mm, it is qualified to be considered as.
(4) pressure testing machine, by pressure transducer, data collecting probe acquisition test data, generates pressure curve table by software system when test automatically, clicks " inquiry " inquiry or prints test findings file.
(5) change next test point and by (1) clamping spot welding guide plate again of step, click " newly test " in software, can start new round test by above-mentioned steps.
Claims (9)
1. spot welding guide plate wedge penetration test machine, comprise frame (1), it is characterized in that: the middle part of described frame (1) is provided with platform (12), described platform (12) is provided with the guide plate fixture (2) for clamping spot welding guide plate (5), directly over described guide plate fixture (2), be provided with wedge shape briquetting (4), described wedge shape briquetting (4) is located in riser guide mechanism (3), servomotor (36) drives wedge shape briquetting (4) along riser guide mechanism (3) lifting, described wedge shape briquetting (4) top is provided with the pressure transducer (41) that bears pressure for detection of wedge shape briquetting, described spot welding guide plate (5) is connected with the displacement transducer (6) for detection of guide plate key way (51) residual deformation amount, also comprise the control system of controlling this pressure testing machine work, described servomotor, pressure transducer and displacement transducer and control system communication connection.
2. spot welding guide plate wedge penetration test machine according to claim 1, it is characterized in that: described riser guide mechanism (3) comprises guide rod (31) and leading screw (32), one movable block (33) is slidably mounted on guide rod, described movable block is by nut and leading screw mix proportion screw-nut body, and described movable block is connected with wedge shape briquetting (4) by contiguous block (34).
3. spot welding guide plate wedge penetration test machine according to claim 2, is characterized in that: the thickness of described wedge shape briquetting (4) is 7mm, and the wedge shaped pressure head angle of described wedge shape briquetting is 60 °.
4. spot welding guide plate wedge penetration test machine according to claim 1, it is characterized in that: the locating piece (21) and the clamp (22) that comprise parallel setting of described guide plate fixture (2), between described locating piece (21) and clamp (22), clamping forms the clamping slot of putting into for spot welding guide plate, described clamp is provided with the clamping bar that stretches into clamping slot, and described clamping bar is pressed so that the spot welding guide plate of putting into clamping slot is clamped by spring top.
5. spot welding guide plate wedge penetration test machine according to claim 4, it is characterized in that: described displacement transducer (6) comprises the data collecting probe that is clamped in spot welding guide plate solder joint to be measured below, described data collecting probe is upwards arranged side by side two test rods (61), two test rods are positioned at spot welding guide plate both sides, the head end of test rod is provided with detection head (62), and detection head is pressed together on solder joint to be measured outside.
6. spot welding guide plate Joint Strength detection method, is characterized in that: first, clamping spot welding guide plate on guide plate fixture, is positioned under wedge shape briquetting solder joint to be measured on spot welding guide plate, just to guide plate key way, displacement transducer is arranged on spot welding guide plate simultaneously; Secondly, the descending wedge shaped pressure head that makes of driven by servomotor wedge shape briquetting is pressed into guide plate key way, and when the pressure sensing when pressure transducer reaches setting value, servomotor stops operating; Then, driven by servomotor wedge shape briquetting is up, exits guide plate key way, and simultaneous displacement sensor is measured the permanent set value of guide plate key way automatically; Finally, permanent set value and standard value are compared and judge that whether Joint Strength is qualified.
7. spot welding guide plate Joint Strength detection method according to claim 6, it is characterized in that: insert after guide plate key way at wedge shaped pressure head, add loading force F wedge shaped pressure head is slowly pressed down, guide plate key way is squeezed outer, and deformation produces extruding force to wedge shaped pressure head, guide plate key way continuous expansion, the force value that deformation produces increases gradually, and in the time that force value is loaded into the test pressure of setting, servomotor stops operating, keep after 5 seconds, servomotor reversion drives wedge shape briquetting upstroke.
8. spot welding guide plate Joint Strength detection method according to claim 7, it is characterized in that: the permanent set f after load(ing) point unloading is residual deflection, detect and record deformation values f by displacement transducer, finally feed back to control system and standard value compare judge Joint Strength whether qualified.
9. spot welding guide plate Joint Strength detection method according to claim 8, is characterized in that: when detection completes, automatically generated on display pressure curve table by control system.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610093603.XA CN105738202B (en) | 2014-07-29 | 2014-07-29 | A kind of method for carrying out intensity detection to guide plate solder joint using pressure testing machine |
| CN201410364451.3A CN104111196B (en) | 2014-07-29 | 2014-07-29 | The strength detecting method of spot welding guide plate wedge penetration test machine and guide plate solder joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410364451.3A CN104111196B (en) | 2014-07-29 | 2014-07-29 | The strength detecting method of spot welding guide plate wedge penetration test machine and guide plate solder joint |
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| CN201610093603.XA Division CN105738202B (en) | 2014-07-29 | 2014-07-29 | A kind of method for carrying out intensity detection to guide plate solder joint using pressure testing machine |
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| CN104111196A true CN104111196A (en) | 2014-10-22 |
| CN104111196B CN104111196B (en) | 2016-04-13 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111564804A (en) * | 2020-06-23 | 2020-08-21 | 广东电网有限责任公司 | Street sign indicating number device and pole |
| CN113533081A (en) * | 2020-04-15 | 2021-10-22 | Oppo（重庆）智能科技有限公司 | Intensity detection device and method and computer storage medium |
| US11660706B2 (en) | 2019-11-18 | 2023-05-30 | Industrial Technology Research Institute | Welding quality detection system and welding quality detection method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101017130A (en) * | 2007-02-15 | 2007-08-15 | 厦门金藏机电有限公司 | Detecting instrument for alloy saw blade welding strength |
| CN201503374U (en) * | 2009-09-11 | 2010-06-09 | 联伟汽车零部件(重庆)有限公司 | Simple tearing platform suitable to test strength of resistance spot welding sample |
| US20120247221A1 (en) * | 2011-04-01 | 2012-10-04 | Askey Computer Corp. | Tension testing device |
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2014
- 2014-07-29 CN CN201410364451.3A patent/CN104111196B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101017130A (en) * | 2007-02-15 | 2007-08-15 | 厦门金藏机电有限公司 | Detecting instrument for alloy saw blade welding strength |
| CN201503374U (en) * | 2009-09-11 | 2010-06-09 | 联伟汽车零部件(重庆)有限公司 | Simple tearing platform suitable to test strength of resistance spot welding sample |
| US20120247221A1 (en) * | 2011-04-01 | 2012-10-04 | Askey Computer Corp. | Tension testing device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11660706B2 (en) | 2019-11-18 | 2023-05-30 | Industrial Technology Research Institute | Welding quality detection system and welding quality detection method |
| CN113533081A (en) * | 2020-04-15 | 2021-10-22 | Oppo（重庆）智能科技有限公司 | Intensity detection device and method and computer storage medium |
| CN111564804A (en) * | 2020-06-23 | 2020-08-21 | 广东电网有限责任公司 | Street sign indicating number device and pole |
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| CN104111196B (en) | 2016-04-13 |
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Address after: 321016 No. 1078, Shenli Road, Jinhua City, Zhejiang Province Patentee after: Zhejiang brilliant Sanlian Industrial Co.,Ltd. Address before: 321016 no.1078, Shenli Road, Jinhua Industrial Park, Zhejiang Province Patentee before: JINHUA TRILINK HUIHUANG Co.,Ltd. |
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