CN111220483B - Welding quality detection device and detection method thereof - Google Patents
Welding quality detection device and detection method thereof Download PDFInfo
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- CN111220483B CN111220483B CN202010182103.XA CN202010182103A CN111220483B CN 111220483 B CN111220483 B CN 111220483B CN 202010182103 A CN202010182103 A CN 202010182103A CN 111220483 B CN111220483 B CN 111220483B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/22—Investigating strength properties of solid materials by application of mechanical stress by applying steady torsional forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0021—Torsional
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0067—Fracture or rupture
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a welding quality detection device and a detection method thereof, and the welding quality detection device comprises an operation table, wherein bench vice and a torque wrench are arranged on the operation table, the torque wrench is arranged on one side of the bench vice, a clamping end of the torque wrench is provided with a prismatic conversion head connecting piece which is vertical to the axial lead of a handle of the torque wrench, a conversion head is arranged on the conversion head connecting piece, the outer side surface of the conversion head is provided with two clamping columns which are vertical to the outer side surface of the conversion head, one side of the bench vice is provided with a slideway, and a rotating mechanism which clamps the torque wrench and moves back and forth along the slideway is arranged in the slideway. The rotating mechanism locks the wrench, and simultaneously moves along the slide way and rotates to generate rotary displacement between the torque wrench handle and the clamping columns, the rotary conversion head drives the two clamping columns to twist the welding test piece to be tested, a torque value is generated on the torque wrench, errors generated by manually and directly operating the torque wrench are reduced, the data testing accuracy is improved, and the tearing test is assisted and analyzed through the recorded torque value data.
Description
Technical Field
The invention belongs to the field of welding quality detection equipment, and particularly relates to a welding quality detection device and a detection method thereof.
Background
In order to ensure the stability of the resistance spot welding strength, test pieces with corresponding thicknesses are required to be processed according to the thicknesses of all product pieces, welding pliers and welding parameters required in the production process of resistance spot welding are used for carrying out test piece welding, then the test pieces are subjected to strength analysis such as tearing test, and the welding parameters are adjusted according to the experimental analysis result to ensure the stability of the welding strength.
Whether the quality is qualified or not can be judged by observing the tearing condition at the welding spot through a direct-viewing method, if the welding spot is torn, the spot welding quality is unqualified, and if the base material test piece is torn, the spot welding quality is qualified. In the prior art, one end of a test piece is usually fixed on a test site, the other end of the test piece is connected with a handheld tearing tool, and a tearing result can be observed after the test piece is twisted and torn. In the tearing test, the hand-held mode of an operator can cause higher errors of test data due to factors such as angles and moments, and even the condition that the test result is analyzed by inaccurate data.
Disclosure of Invention
In order to solve the problem that when a welding test piece is subjected to a tearing test, the data is inaccurate due to the factors such as angle, moment and the like in direct operation, the invention provides the welding quality detection device and the detection method thereof, which reduce errors, improve the test accuracy and generate torsion data to assist in analysis.
The invention is realized by the following technical scheme.
The welding quality detection device comprises an operating platform, wherein bench clamp and a torque wrench are arranged on the operating platform, the torque wrench is arranged on one side of the bench clamp, a prismatic conversion head connecting piece which is perpendicular to the axial lead of a handle of the torque wrench is arranged at the clamping end of the torque wrench, a conversion head is installed on the conversion head connecting piece, two clamping columns which are perpendicular to the outer side face of the conversion head are arranged on the outer side face of the conversion head, a slide way is arranged on one side of the bench clamp, and a rotating mechanism which clamps the torque wrench and moves back and forth along the slide way is arranged in the slide way. The rotating mechanism supports the torque wrench and locks the position of the wrench; meanwhile, the rotating mechanism moves along the slide way and rotates automatically, so that displacement is generated between the handle of the torque wrench and the clamping column, a torque value is generated on the torque wrench, and the condition that the tearing test result is analyzed due to the influence of factors such as angle and torque caused by manual direct operation is reduced.
The invention is further improved in that the rotating mechanism comprises a rotating part moving in the slideway and a pushing part pushing the rotating part to rotate, a through hole locking the conversion head is arranged at the center of the rotating part, and a limiting block fixing a torque wrench handle is arranged on the pushing part. The conversion head of the torque wrench penetrates through the through hole to be locked, the handle of the torque wrench is locked by the limiting block on the pushing piece, the pushing piece pushes the rotating piece to roll along the slide way, so that the handle of the torque wrench and the clamping column are displaced, and a torque value is generated on the torque wrench.
The invention is further improved in that a through hole is formed in the center of the rotating part, an axial inserting strip is arranged on the inner wall of the through hole, and a converting head slot matched with the inserting strip is formed in the side wall of the converting head. The inserting strips on the through holes are matched with the conversion head slots on the side walls of the conversion heads so as to synchronously lock the conversion heads.
The invention is further improved in that the rotating part is a gear disc, and the inner bottom of the slideway is provided with a insection groove matched with teeth of the gear disc. The teeth of the gear disc are matched with the insection grooves, so that slipping of a rotating part in the rotating process is avoided.
The invention is further improved in that at least one side surface of the gear disc is provided with an annular groove with the same axis, the annular groove is internally provided with a roller shaft with symmetrical axes, the diameter of the roller shaft is smaller than the width of the annular groove, the outer end surface of the roller shaft is connected with a support rod extending backwards through a pin shaft, and the rear end of the support rod is connected with a guide plate arranged in a slide way in a sliding way; the lateral surface of deflector is equipped with at least a stopper. The guide plate is connected with a rotating roller shaft through a support rod, and the roller shaft extrudes the annular groove to realize that the gear plate rolls along the slide way.
The invention is further improved in that two screw holes which are not communicated are arranged on the outer side surface of the conversion head, and the inner end of the clamping column is screwed in the screw holes. The clamping column is screwed on the conversion head, so that the worn-out replacement is facilitated.
The invention is further improved in that the middle point of the distance between the two screw holes on the outer side surface of the conversion head is positioned on the axis of the conversion head. The two clamping columns rotate coaxially with the conversion head.
The invention is further improved in that the outer side surface of the clamping column is provided with strip-shaped or point-shaped anti-skid protrusions. The friction force between the clamping column and the welding test piece is increased through the protection protrusion.
The invention is further improved in that the outer side surface of the clamping column is provided with an anti-slip groove parallel to the axial lead of the clamping column, and an anti-slip rubber strip is arranged in the anti-slip groove. The friction force between the clamping column and the welding test piece is increased through the protective adhesive tape.
The further improvement of the invention comprises the following steps: s1, fixing one end of the welding test piece in a jaw of the bench clamp; s2, adjusting the angle of the conversion head to enable the two clamping columns to be positioned at the upper side and the lower side of the welding test piece, and placing the conversion head in the through hole of the gear disc; s3, connecting a conversion head connecting piece of the torque wrench handle with a conversion head in the through hole, and clamping the rear end of the torque wrench handle between limiting blocks of the guide plate; s4, pushing the guide plate along the slide way, driving the gear disc to roll forwards by the guide plate through the support rod, driving the conversion head to rotate, and rolling the welding test piece by the clamping column; meanwhile, the conversion head and the wrench handle rotate relatively until the welding point of the welding test piece is torn; s5, checking and recording the torque value of the torque wrench; and S6, removing the welding test piece, pulling back the guide plate until the conversion head rotates and resets, and simultaneously removing the torque wrench and the conversion head.
The invention has the beneficial effects that: the rotating mechanism supports the torque wrench and locks the position of the wrench; meanwhile, the rotating mechanism moves along the slide way and rotates automatically, so that the handle of the torque wrench and the clamping columns generate displacement, the two clamping columns are driven by the rotating conversion head to twist the welding test piece to be tested, a torque value is generated on the torque wrench, errors caused by manual direct operation of the torque wrench are reduced, the data testing accuracy is improved, and the tearing test is assisted and analyzed through the recorded torque value data.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic view of a torque wrench according to an embodiment of the present invention.
Fig. 3 is a schematic view of a clamping column according to an embodiment of the present invention.
Fig. 4 is a schematic view of a rotating mechanism according to an embodiment of the present invention.
In the drawings: 1. the device comprises an operation table, 2, bench clamps, 3, a torque wrench, 31, a conversion head, 32, screw holes, 33, clamping columns, 34, conversion head slots, 35, an anti-slip rubber strip, 4, a guide plate, 41, a support rod, 42, a roller shaft, 5, a limiting block, 6, a gear disc, 61, a through hole, 62, an annular groove, 63, a cutting strip, 7, a slide way, 8 and a tooth pattern groove.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
As shown in the attached drawings, the welding quality detection device comprises an operation table 1, wherein bench clamp 2 and a torque wrench 3 with a torque meter are arranged on the operation table 1. The opening direction of the bench clamp 2 is horizontally arranged, and the bench clamp 2 can clamp one end of a welding test piece to be measured to form a fixed end. The torque wrench 3 is arranged on one side of the bench clamp 2. And rolling the other end of the welding test piece by using the torque wrench 3 until the welding point of the test piece is torn, and performing auxiliary analysis on a tearing result by using the torque value generated in the tearing process. The clamping end of the torque wrench 3 is provided with a prismatic conversion head connecting piece which is vertical to the axial lead of the handle of the torque wrench 3. The torque value can be generated after the rotation of the conversion head connecting piece and the handle of the torque wrench generate relative displacement. The conversion head connecting piece is provided with a conversion head 31, and the outer side face of the conversion head 31 is provided with two clamping columns 33 which are perpendicular to the outer side face of the conversion head 31. The two clamping columns 33 are placed on the test piece, the torque wrench 3 is operated to rotate, so that the test piece is rolled between the two clamping columns 33 until the test piece is torn, and the torque value required by tearing the test piece can be obtained. A slide way 7 is arranged on one side of the bench clamp 2, and a rotating mechanism which clamps the torque wrench 3 and moves back and forth along the slide way 7 is arranged in the slide way 7. The rotating mechanism supports the torque wrench 3 and locks the position of the wrench; meanwhile, the rotating mechanism moves along the slideway 7 and rotates, so that the displacement is generated between the handle of the torque wrench 3 and the clamping column 33, and further the torque value is generated on the torque wrench 3. The error caused by the direct manual operation of the torque wrench 3 is reduced due to the movement along the slide 7.
The rotating mechanism comprises a rotating part moving in the slideway 7 and a pushing part pushing the rotating part to rotate, a through hole 61 locking the conversion head 31 is arranged at the center of the rotating part, and a limiting block 5 fixing a handle of the torque wrench 3 is arranged on the pushing part. The switching head 31 of the torque wrench 3 is locked by passing through the through hole 61, the handle of the torque wrench 3 is locked by the stopper 5 on the pushing member, the rotating member is pushed by the pushing member to roll along the slideway 7, so that the handle of the torque wrench 3 and the clamping column 33 rotate relatively, and the torque value is generated on the torque wrench 3.
The center of the rotating part is provided with a through hole 61, the inner wall of the through hole 61 is provided with an axial inserting strip 63, and the side wall of the conversion head 31 is provided with a conversion head slot 34 matched with the inserting strip 63. The tabs 63 on the through holes 61 mate with the slots 34 on the sidewalls of the transducing head 31 to lock the transducing head 31 in synchronization.
The rotating piece is a gear plate 6, and the inner bottom of the slide way 7 is provided with a tooth pattern groove 8 matched with the teeth of the gear plate 6. The gear disc 6 rolls in the insection groove 8, and a fixed value of resistance can exist while the gear disc rolls; because of the resistance, the gear plate 6 is prevented from slipping when rotating in the tooth-groove 8.
An annular groove 62 with the same axis is formed in at least one side face of the gear disc 6, a roller shaft 42 with the symmetrical axis is arranged in the annular groove 62, the diameter of the roller shaft 42 is smaller than the width of the annular groove 62, a support rod 41 extending backwards is connected to the outer end face of the roller shaft 42 through a pin shaft, and a guide plate 4 arranged in the slide way 7 in a sliding mode is connected to the rear end of the support rod 41; the lateral surface of deflector 4 is equipped with at least a stopper 5. The guide plate 4 is connected with a rotating roller shaft 42 through a support rod 41, and the roller shaft 42 presses the annular groove 62 to enable the gear wheel 6 to roll along the slide way 7.
Two screw holes 32 which are not communicated are arranged on the outer side surface of the conversion head 31, and the inner ends of the clamping columns 33 are screwed in the screw holes 32. The clamping post 33 is screwed on the conversion head 31, so that the worn-out replacement is convenient.
The middle point of the distance between the two screw holes 32 on the outer side surface of the conversion head 31 is positioned on the axis of the conversion head 31. The two holding posts 33 rotate coaxially with the head 31.
The outer side surface of the clamping column 33 is provided with a strip-shaped or point-shaped anti-slip bulge. The friction between the holding pin 33 and the welding coupon is increased by the protective protrusion.
And the outer side surface of the clamping column 33 is provided with an anti-slip groove parallel to the axial lead of the clamping column 33, and an anti-slip rubber strip 35 is arranged in the anti-slip groove. The friction between the clamping column 33 and the welding test piece is increased by the protective rubber strip.
The side wall of the conversion head connecting piece is provided with steel balls, the inner end face of the conversion head 31 is provided with a connecting piece slot matched with the conversion head connecting piece, and the inner wall of the connecting piece slot is provided with a locking slot matched with the steel balls. Through the cooperation of the steel balls and the locking grooves, the converter head 31 is prevented from axially separating from the converter head connecting piece and falling off in the using process, and the calculation error of the torsion value is prevented from being influenced.
A detection method of a welding quality detection device comprises the following steps: s1, fixing one end of the welding test piece in the jaw of the bench clamp 2; s2, adjusting the angle of the conversion head 31 to make the two clamping columns 33 positioned at the upper and lower sides of the welding test piece, and placing the conversion head 31 in the through hole 61 of the gear disc 6; s3, connecting a conversion head 31 connecting piece of the handle of the torque wrench 3 with the conversion head 31 in the through hole 61, and clamping the rear end of the handle of the torque wrench 3 between the limiting blocks of the guide plate 4; s4, the guide plate 4 is pushed along the slideway 7, the guide plate 4 drives the gear disc 6 to roll forwards through the support rod 41, the conversion head 31 is driven to rotate, and the clamping column 33 rolls the welding test piece; meanwhile, the conversion head 31 and the wrench handle rotate relatively until the welding point of the welding test piece is torn; s5, checking and recording the torque value of the torque wrench 3; and S6, removing the welding test piece, pulling back the guide plate 4 until the conversion head 31 is rotated and reset, and simultaneously removing the torque wrench 3 and the conversion head 31.
According to the welding quality detection device and the detection method thereof, the rotating mechanism supports the torque wrench and locks the position of the wrench; meanwhile, the rotating mechanism moves along the slide way and rotates automatically, so that the handle of the torque wrench and the clamping columns generate displacement, the two clamping columns are driven by the rotating conversion head to twist the welding test piece to be tested, a torque value is generated on the torque wrench, errors caused by manual direct operation of the torque wrench are reduced, the data testing accuracy is improved, and the tearing test is assisted and analyzed through the recorded torque value data.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The terms "upper", "lower", "outside", "inside" and the like in the description and claims of the present invention and the above drawings are used for distinguishing relative positions if any, and are not necessarily given qualitatively. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in other sequences than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A welding quality detection device comprises an operation table (1), and is characterized in that a bench vice (2) and a torque wrench (3) are arranged on the operation table (1), the torque wrench (3) is arranged on one side of the bench vice (2), a clamping end of the torque wrench (3) is provided with a prismatic conversion head connecting piece which is perpendicular to the axial lead of a handle of the torque wrench (3), the conversion head connecting piece is provided with a conversion head (31), the outer side surface of the conversion head (31) is provided with two clamping columns (33) which are perpendicular to the outer side surface of the conversion head (31), one side of the bench vice (2) is provided with a slide way (7), and a rotating mechanism which clamps the torque wrench (3) and moves back and forth along the slide way (7) is arranged in the slide way (7); the rotating mechanism comprises a rotating part moving in the slideway (7) and a pushing part pushing the rotating part to rotate, a through hole (61) locking the conversion head (31) is arranged at the center of the rotating part, and a limiting block (5) fixing a handle of the torque wrench (3) is arranged on the pushing part; a through hole (61) is formed in the center of the rotating piece, an axial inserting strip (63) is arranged on the inner wall of the through hole (61), and a converting head slot (34) matched with the inserting strip (63) is formed in the side wall of the converting head (31); the rotating piece is a gear plate (6), and the inner bottom of the slideway (7) is provided with a tooth pattern groove (8) matched with teeth of the gear plate (6); at least one side face of the gear disc (6) is provided with a coaxial annular groove (62), the annular groove (62) is internally provided with a roll shaft (42) with symmetrical axes, the diameter of the roll shaft (42) is smaller than the width of the annular groove (62), the outer end face of the roll shaft (42) is connected with a support rod (41) extending backwards through a pin shaft, and the rear end of the support rod (41) is connected with a guide plate (4) arranged in the slide way (7) in a sliding manner; the outer side surface of the guide plate (4) is provided with at least one limiting block (5).
2. The welding quality detection device according to claim 1, wherein the outer side surface of the conversion head (31) is provided with two screw holes (32) which are not communicated, and the inner end of the clamping column (33) is screwed in the screw holes (32).
3. The welding quality detection device according to claim 2, wherein a midpoint of a distance between the two screw holes (32) on the outer side surface of the conversion head (31) is located on an axial center line of the conversion head (31).
4. The welding quality detection device according to claim 1, wherein a strip-shaped or dot-shaped anti-slip protrusion is provided on an outer side surface of the clamping column (33).
5. The welding quality detection device according to claim 4, characterized in that the outer side surface of the clamping column (33) is provided with an anti-slip groove parallel to the axial lead of the clamping column (33), and an anti-slip rubber strip (35) is arranged in the anti-slip groove.
6. A test method using the welding quality test device according to any one of claims 1 to 5, wherein S1, one end of the welding coupon is fixed in the jaw of the vise (2); s2, adjusting the angle of the conversion head (31), enabling the two clamping columns (33) to be positioned at the upper side and the lower side of the welding test piece, and placing the conversion head (31) in the through hole (61) of the gear disc (6); s3, connecting a conversion head (31) connecting piece of a handle of the torque wrench (3) with the conversion head (31) in the through hole (61), and clamping the rear end of the handle of the torque wrench (3) between limiting blocks of the guide plate (4); s4, pushing the guide plate (4) along the slideway 7, driving the gear disc (6) to roll forwards by the guide plate (4) through the support rod (41) to drive the conversion head (31) to rotate, and rolling the welding test piece by the clamping column (33); meanwhile, the conversion head (31) and the wrench handle rotate relatively until the welding point of the welding test piece is torn; s5, checking and recording the torque value of the torque wrench (3); s6, removing the welding test piece, pulling back the guide plate (4) until the conversion head (31) is rotated and reset, and simultaneously removing the torque wrench (3) and the conversion head (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010182103.XA CN111220483B (en) | 2020-03-16 | 2020-03-16 | Welding quality detection device and detection method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010182103.XA CN111220483B (en) | 2020-03-16 | 2020-03-16 | Welding quality detection device and detection method thereof |
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| CN111220483A CN111220483A (en) | 2020-06-02 |
| CN111220483B true CN111220483B (en) | 2022-08-12 |
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| CN202010182103.XA Active CN111220483B (en) | 2020-03-16 | 2020-03-16 | Welding quality detection device and detection method thereof |
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| CN115266399B (en) * | 2022-08-09 | 2023-07-04 | 中国重汽集团济宁商用车有限公司 | Welding spot torsion test device |
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| CN107219130A (en) * | 2017-05-24 | 2017-09-29 | 安徽江淮汽车集团股份有限公司 | Solder joint test piece tear test frock |
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| CN108458939A (en) * | 2018-06-14 | 2018-08-28 | 南京卓耐重工机械制造有限公司 | One kind is for detecting Joint Strength table apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101354299A (en) * | 2008-08-29 | 2009-01-28 | 奇瑞汽车股份有限公司 | Bolt torque test stand |
| CN201596990U (en) * | 2010-03-12 | 2010-10-06 | 天津富奥电装空调有限公司 | Torque wrench |
| BG110655A (en) * | 2010-05-18 | 2011-11-30 | Институт По Металознание "Акад. А. Балевски" - Бан | A method and device for testing the disposition of metals to create cracks at welding |
| CN204027984U (en) * | 2014-05-13 | 2014-12-17 | 北京海纳川汽车底盘系统有限公司 | A kind of tack-weld peel test device |
| CN107219130A (en) * | 2017-05-24 | 2017-09-29 | 安徽江淮汽车集团股份有限公司 | Solder joint test piece tear test frock |
| CN207703611U (en) * | 2017-12-28 | 2018-08-07 | 爱驰汽车有限公司 | A kind of solder joint tearing tool and Joint Strength detection device |
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| CN111220483A (en) | 2020-06-02 |
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