CN110108582B - Steel wire repeated bending test device and steel wire detection method - Google Patents
Steel wire repeated bending test device and steel wire detection method Download PDFInfo
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- CN110108582B CN110108582B CN201910360781.8A CN201910360781A CN110108582B CN 110108582 B CN110108582 B CN 110108582B CN 201910360781 A CN201910360781 A CN 201910360781A CN 110108582 B CN110108582 B CN 110108582B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 130
- 239000010959 steel Substances 0.000 title claims abstract description 130
- 238000005452 bending Methods 0.000 title claims abstract description 50
- 238000012360 testing method Methods 0.000 title claims abstract description 33
- 238000001514 detection method Methods 0.000 title claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 118
- 238000004804 winding Methods 0.000 claims abstract description 36
- 238000009434 installation Methods 0.000 claims abstract description 23
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 14
- 230000006978 adaptation Effects 0.000 claims description 12
- 239000000523 sample Substances 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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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
- G01N3/02—Details
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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
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating 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
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
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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
- G01N2203/0023—Bending
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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
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
- G01N2203/0037—Generation of the force using mechanical means involving a rotating movement, e.g. gearing, cam, eccentric, or centrifuge effects
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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
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0278—Thin specimens
- G01N2203/028—One dimensional, e.g. filaments, wires, ropes or cables
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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
- G01N2203/0688—Time or frequency
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Abstract
The invention relates to a steel wire repeated bending test device and a steel wire detection method, belonging to the technical field of engineering detection and comprising a base, a rotating shaft rotatably connected with one end of the base, a rocker arm fixedly arranged on the rotating shaft, a lower mounting clamping mechanism arranged on the base, an upper mounting clamping mechanism and a guide mechanism arranged on the rocker arm, wherein the base is provided with a positioning mechanism, the rocker arm is provided with a stabilizing mechanism, the stabilizing mechanism comprises a mounting block fixedly arranged on the rocker arm, a steering pulley rotatably supported on the rocker arm and a winding rope fixedly arranged on the mounting block, and one end of the winding rope bypasses the steering pulley, penetrates through the base and penetrates through the base to be fixedly provided with a balancing weight. Through set up firm mechanism on the rocking arm, not only reduced operating personnel's intensity of labour, made the reciprocating rotation's of rocking arm speed more even moreover, improved stability and the practicality of its use, examine time measuring at the steel wire simultaneously, straighten the steel wire, make the installation of steel wire more stable, detect more accurately.
Description
Technical Field
The invention relates to the technical field of engineering detection, in particular to a steel wire repeated bending test device and a steel wire detection method.
Background
The steel wire repeated bending test is a method for measuring the plastic deformation capability of the steel wire, detecting the repeated bending resistance of the steel wire and a covering layer thereof and displaying the defects of the steel wire.
At present, patent documents with the publication date of 2017.05.17 and publication number of CN206177724U disclose a repeated bending tester for steel bars, which comprises a base, a rotating arm base, a supporting roller fixing support and a rotating bending arm, wherein the rotating arm base is fixed on the base in a threaded manner and is provided with an assembling hole facing the supporting roller fixing support and adjustable in height, the supporting roller fixing support is arranged on the base in a pair manner that one side of the supporting roller fixing support is fixed and one side of the supporting roller fixing support is in sliding locking, and the butt-joint surface of the supporting roller arranged on the supporting roller fixing support is aligned with the center of the assembling hole; the rotary bending arm is a crank arm rod comprising an upper section, a middle section and a bottom section, wherein the upper section is a hollow pipe fitting, the middle section is provided with a screw type chuck and at least one straightening block in an assembling and connecting way, the bottom section is connected in the assembling and connecting hole in a penetrating way, a driven swing arm rotates, and under the state that a main shaft of the rotary bending arm is perpendicular to a base, a steel bar to be subjected to bending test sequentially penetrates into the upper section, is fixed on the screw type chuck and is fixedly clamped on the support roller. This reinforcing bar repeated bending test machine when detecting the reinforcing bar, needs operating personnel to apply the effort to rotating the bending arm and make it rotate, and the speed that rotates the bending arm reciprocating rotation is more even, and is more accurate to the detection of reinforcing bar. When the rotating bending arm rotates to one side from the vertical state, an operator needs to press the rotating bending arm downwards and enable the rotating bending arm to rotate, when the rotating bending arm returns to the vertical state, the operator needs to pull the rotating bending arm upwards and enable the rotating bending arm to rotate, the operator can easily influence the rotating speed of the rotating bending arm due to different proficiency, and the accuracy of steel bar detection is further influenced.
Disclosure of Invention
The invention aims to provide a steel wire repeated bending test device, wherein a stabilizing mechanism is arranged at one end of a rocker arm, which is far away from a rotating shaft, when the rocker arm needs to return to a vertical state, a balancing weight drives the rocker arm to rotate through a winding rope, an operator presses the rocker arm downwards and controls the rotating speed of the rocker arm, the labor intensity of the operator is reduced, the reciprocating rotating speed of the rocker arm is more uniform, the steel wire detection accuracy is improved, and the use stability and the practicability of the steel wire repeated bending test device are further improved.
The technical purpose of the invention is realized by the following technical scheme:
a steel wire repeated bending test device comprises a base, a base arranged on the base, a rotating shaft which is rotatably connected to one end of the base and is along the horizontal direction, a rocker arm which is fixedly arranged at one end of the rotating shaft, is far away from the base, and rotates in a vertical plane, a lower mounting clamping mechanism which is arranged on the top surface of the base and is used for clamping the bottom end of a steel wire, an upper mounting clamping mechanism which is arranged on the side surface of the rocker arm and is used for clamping the top end of the steel wire, and a guide mechanism which is arranged on the side surface of the rocker arm and is positioned between the lower mounting clamping mechanism and the upper mounting clamping mechanism, wherein a positioning mechanism which is used for keeping the rocker arm in a vertical state is arranged on the base, a stabilizing mechanism is arranged at one end of the rocker arm, which is far away from the rotating shaft, and comprises a mounting block fixedly arranged on the side surface of the rocker arm, a steering pulley which is rotatably supported on the rocker arm, and a winding rope fixedly arranged on the mounting block, which is positioned at one side of the upper mounting clamping mechanism, which is far away from the lower mounting clamping mechanism, the steering pulley is located on one side, far away from the upper mounting clamping mechanism, of the mounting block, one end, far away from the mounting block, of the wire winding rope winds the steering pulley, penetrates through the base and is fixedly provided with the balancing weight, the axis of the steering pulley is perpendicular to the axis of the rotating shaft, the axis of the steering pulley is perpendicular to the rocker arm, and two ends of the wire winding rope are located on two sides of the rocker arm.
Through adopting above-mentioned technical scheme, the one end of keeping away from the axis of rotation at the rocking arm sets up firm mechanism, when the rocking arm is rotated to one side by the vertical state, operating personnel pushes down and rotates the crooked arm and make it rotate, when the rocking arm returns the vertical state, the balancing weight drives the rocking arm through the winding rope and rotates, operating personnel pushes down the rocking arm and controls the slew rate of rocking arm, operating personnel's intensity of labour has not only been reduced, and make the reciprocal pivoted speed of rocking arm more even, the accuracy that the steel wire detected has been improved, and then stability and the practicality that the test device used of steel wire bending repeatedly have been improved, simultaneously through installing clamping mechanism at last and installing guiding mechanism down between the clamping mechanism, play the effect of direction to the steel wire, the accuracy that the steel wire detected has further been improved.
The invention is further configured to: the top surface of the base is rotatably supported with two supporting pulleys, the axes of the supporting pulleys are parallel to the axis of the steering pulley, and the wire winding rope is positioned between the two supporting pulleys.
Through adopting above-mentioned technical scheme, when the rocking arm rotated, supporting pulley exerted the effort to the winding rope, had reduced the effort of base to the winding rope to prevent that winding rope and base from rubbing repeatedly and making the winding rope fracture, improved the security that firm mechanism used.
The invention is further configured to: two guide pulleys are rotatably supported on the side face of the rocker arm between the steering pulley and the supporting pulley, the axes of the guide pulleys are parallel to the axis of the steering pulley, and the wire winding rope is positioned between the two guide pulleys.
By adopting the technical scheme, the distance between the steering pulley and the supporting pulley is reduced, and the use stability of the stabilizing mechanism is improved.
The invention is further configured to: the base top surface has set firmly spacing post respectively in the both sides of axis of rotation, the rocking arm rotates between two spacing posts, just the turned angle of rocking arm is 180 degrees.
Through adopting above-mentioned technical scheme, inject the turned angle of rocking arm to make the rocking arm rotate 180 degrees, make the use of steel wire bending test device repeatedly more convenient.
The invention is further configured to: positioning mechanism slides the regulation rack of being connected, rotates the drive pivot of support on the fixed block, sets firmly at drive pivot outer peripheral face and with the regulation gear that adjusts the rack and mesh mutually at the fixed block of base top surface, adjust the rack and the axis of rotation is parallel, the one end extension of adjusting the rack has set firmly the joint pole, the grafting recess with joint pole looks adaptation is seted up to the rocking arm side, and when the joint pole was located the grafting recess, the rocking arm was in the vertical state.
By adopting the technical scheme, the rocker arm is fixed in a vertical state, and the positioning mechanism is more convenient to mount and use.
The invention is further configured to: and limiting plates are fixedly arranged at two ends of the adjusting rack respectively.
Through adopting above-mentioned technical scheme, the limiting plate is injectd the displacement of adjusting the rack, prevents that adjusting rack and adjusting gear from breaking away from, has improved the stability that positioning mechanism used.
The invention is further configured to: guiding mechanism includes the guide block of laminating mutually with the rocking arm side, sets firmly the clamping screw in guide block one end, the guide that leads to the groove with steel wire looks adaptation is seted up to the guide block top surface, clamping screw keeps away from the one end of guide block and runs through rocking arm threaded connection and have fixation nut, the rocking arm is seted up along its length direction and is led to the groove with the installation of clamping screw looks adaptation.
Through adopting above-mentioned technical scheme, the steel wire passes the direction and leads to the groove, has realized the guide effect to the steel wire, and through fixing screw and fixation nut mutually supporting, realized guiding mechanism and down install the regulation of distance between the clamping mechanism, improved guiding mechanism's practicality.
The invention is further configured to: and a counting mechanism is arranged between the base and the rocker arm.
Through adopting above-mentioned technical scheme, be convenient for make statistics of rocking arm pivoted number of times, and then make the detection of steel wire more convenient.
The invention is further configured to: the counting mechanism comprises an electronic counting probe arranged on the top surface of the base, the electronic counting probe is electrically connected with the central processing unit, and a magnet block matched with the electronic counting probe is arranged on the side surface of the rocker arm.
Through adopting above-mentioned technical scheme, the rocking arm drives the magnet piece and rotates, and when the magnet piece was sensed to the electron count probe, the electron count probe was counted rocking arm pivoted number of times under central processing unit's control to it is more convenient to make steel wire bending test device's use repeatedly.
The second purpose of the invention is to provide a steel wire detection method using the steel wire repeated bending test device, which straightens the steel wire, so that the installation of the steel wire is more stable and the detection is more accurate, and the reciprocating rotation speed of the rocker arm is more uniform by arranging the stabilizing mechanism on the rocker arm, thereby further improving the accuracy of the steel wire detection.
The technical purpose of the invention is realized by the following technical scheme:
a steel wire detection method using the steel wire repeated bending test device comprises the following steps:
a: cutting out the steel wire with the length of 200-250mm and straightening;
b: adjusting the positioning mechanism to enable the rocker arm to be in a vertical state and set as an initial position;
c: adjusting the lower mounting clamping mechanism and the upper mounting clamping mechanism to be matched with the diameter of the steel wire;
d: adjusting the lower mounting clamping mechanism, the upper mounting clamping mechanism and the guide mechanism to be matched with the length of the steel wire;
e: the bottom end of the steel wire extends into the lower mounting and clamping mechanism, the top end of the steel wire penetrates through the guide mechanism, and the top end of the steel wire extends into the upper mounting and clamping mechanism;
f: clamping the bottom end of the steel wire in the lower mounting and clamping mechanism, clamping the top end of the steel wire in the upper mounting and clamping mechanism, and keeping the steel wire in a vertical state;
g: adjusting the positioning mechanism to enable the rocker arm to rotate along the axis of the rotating shaft;
h: uniformly rotating the rocker arm, wherein the rocker arm rotates from the initial position to one side and returns to the initial position, the number of the rocker arm is counted as one, the rocker arm rotates to the other side and returns to the initial position, the number of the rocker arm is counted as two until the steel wire is broken, and the rocker arm is not counted in the last time of the steel wire bending and breaking, so that the total number of times of rotation of the rocker arm is counted;
i: and (4) removing the steel wire from the upper mounting clamping mechanism and the lower mounting clamping mechanism to finish the detection of the steel wire.
Through adopting above-mentioned technical scheme, straighten the steel wire, make the installation of steel wire more stable, detect more accurate, through set up firm mechanism on the rocking arm moreover, make the rocking arm reciprocating rotation's speed more even, and then make the atress of steel wire more even, improved the accuracy that the steel wire detected.
In conclusion, the invention has the following beneficial effects:
1. according to the steel wire repeated bending test device, the stabilizing mechanism is arranged at one end, away from the rotating shaft, of the rocker arm, when the rocker arm needs to return to a vertical state, the counterweight block drives the rocker arm to rotate through the winding rope, an operator presses the rocker arm downwards and controls the rotating speed of the rocker arm, the labor intensity of the operator is reduced, the reciprocating rotating speed of the rocker arm is more uniform, the steel wire detection accuracy is improved, and the use stability and the practicability of the steel wire repeated bending test device are further improved.
2. Through set up supporting pulley on the base, set up guide pulley on the rocking arm, supporting pulley exerts the effort to the winding rope, has reduced the effort of base to the winding rope to prevent that winding rope and base from rubbing repeatedly and making the winding rope fracture, guide pulley has reduced the distance between diverting pulley and the supporting pulley, has improved security and the stability that stabilizing mean used.
3. Through set up spacing post on the base, the rocking arm rotates between two spacing posts, and the turned angle of rocking arm is 180 degrees, makes the rotation of rocking arm more convenient, more stable.
4. When the clamping rod is positioned in the inserting groove, the rocker arm is in a vertical state, so that the steel wire is convenient to install, and the positioning mechanism is more convenient to install and use.
5. The steel wire detection method utilizing the steel wire repeated bending test device straightens the steel wire, so that the steel wire is more stably installed and more accurately detected, and the reciprocating rotation speed of the rocker arm is more uniform by arranging the stabilizing mechanism on the rocker arm, so that the accuracy of steel wire detection is further improved.
Drawings
FIG. 1 is a schematic structural view of an embodiment;
FIG. 2 is a partial cross-sectional view for illustrating a first positioning post;
FIG. 3 is a schematic view for showing the structure of the upper mounting fixture;
FIG. 4 is an exploded view to show the upper mounting clamping mechanism;
FIG. 5 is a schematic view for showing the structure of the guide mechanism;
FIG. 6 is an enlarged view of portion A of FIG. 5;
fig. 7 is a schematic view for showing the structure of the counting mechanism.
In the figure, 1, a base; 11. a limiting column; 2. a base; 21. a rotating shaft; 3. a rocker arm; 31. an adjustment sleeve; 32. a drive rod; 4. a clamping mechanism is arranged below; 41. a first lower fixed seat; 411. a first positioning post; 42. a second lower fixed seat; 421. a second positioning column; 43. a first lower splint; 44. a second lower splint; 45. an adjustment assembly; 451. an adjusting seat; 452. adjusting the screw rod; 453. a lower drive handle; 5. a clamping mechanism is arranged on the bracket; 51. an upper fixed seat; 511. a first upper positioning column; 52. installing a screw rod; 521. a yielding through groove; 53. installing a sleeve; 531. an upper drive handle; 54. a first upper splint; 541. positioning pins; 55. a second upper splint; 56. fastening a screw rod; 57. fastening a nut; 58. adjusting the through groove; 6. a guide mechanism; 61. a guide block; 611. a guide through groove; 62. fixing the screw rod; 63. fixing a nut; 64. installing a through groove; 7. a positioning mechanism; 71. a fixed block; 72. adjusting the rack; 721. a limiting plate; 73. a clamping and connecting rod; 74. driving the rotating shaft; 741. positioning the driving handle; 75. an adjusting gear; 76. a slide bar; 8. a counting mechanism; 81. an electronic counting probe; 82. a magnet block; 9. a stabilizing mechanism; 91. mounting blocks; 92. a diverting pulley; 93. winding a wire rope; 94. a balancing weight; 95. a guide pulley; 96. an auxiliary pulley; 97. supporting the pulley.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and examples.
A steel wire repeated bending test device and a steel wire detection method are disclosed, as shown in figure 1, the steel wire repeated bending test device comprises a base 1 along the horizontal direction, a base 2 is fixedly arranged on the top surface of the base 1, one end of the base 2 is rotatably connected with a rotating shaft 21 along the horizontal direction, and the rotating shaft 21 rotates along the axis of the rotating shaft. The one end that base 2 was kept away from to axis of rotation 21 has set firmly rocking arm 3, and rocking arm 3 sets up to rectangular shaped plate, and rocking arm 3 and axis of rotation 21 are perpendicular, and rocking arm 3 rotates along axis 21 of axis of rotation in the vertical plane, and the one end that axis of rotation 21 was kept away from to rocking arm 3 has set firmly adjusting sleeve 31, and adjusting sleeve 31 has actuating lever 32 along 3 length direction settings of rocking arm, adjusting sleeve 31 female connection. The top surface of the base 1 is provided with a lower mounting clamping mechanism 4 used for clamping the bottom end of the steel wire on one side of the rocker arm 3 away from the base 2, one end of the rocker arm 3 away from the rotating shaft 21 is provided with an upper mounting clamping mechanism 5 used for clamping the top end of the steel wire, the side of the rocker arm 3 away from the base 2 is provided with a guide mechanism 6 used for guiding the steel wire for limiting, and the guide mechanism 6 is positioned between the upper mounting clamping mechanism 5 and the lower mounting clamping mechanism 4. In order to facilitate the installation of the wire, the base 2 is provided with a positioning mechanism 7 for keeping the swing arm 3 in a vertical state.
As shown in fig. 2, the lower mounting clamping mechanism 4 includes a first lower fixing seat 41 fixed on the top surface of the base 1, and a second lower fixing seat 42 fixed on the top surface of the base 1, wherein the first lower fixing seat 41 and the second lower fixing seat 42 are arranged at an interval along the direction perpendicular to the rotation axis 21. A first lower clamping plate 43 and a second lower clamping plate 44 are arranged between the first lower fixing seat 41 and the second lower fixing seat 42, and the first lower clamping plate 43 is positioned between the first lower fixing seat 41 and the second lower clamping plate 44. One end of the first lower fixing seat 41 close to the second lower fixing seat 42 is fixedly provided with a first positioning column 411, the first positioning column 411 is arranged along the direction perpendicular to the rotating shaft 21, the cross section of the first positioning column 411 is square, and the side surface of the first lower clamping plate 43 close to the first positioning column 411 is provided with a first lower clamping groove matched with the first positioning column 411. Second lower fixing base 42 slides and is connected with second reference column 421, second reference column 421 and first reference column 411 are parallel, and the transversal square setting of personally submitting of second reference column 421, second lower fixing base 42 sets up the logical groove of sliding with second reference column 421 looks adaptation, second reference column 421 slides in the logical groove that slides, be provided with between one end that first reference column 411 was kept away from to second reference column 421 and the base 1 and be used for adjusting the adjusting part 45 of distance between first reference column 411 and the second reference column 421, second lower splint 44 is close to the side of second reference column 421 and sets up the second lower joint recess with second reference column 421 looks adaptation.
As shown in fig. 2, the adjusting assembly 45 includes an adjusting seat 451 fixedly disposed on the top surface of the base 1 and located on a side of the second lower fixing seat 42 away from the first lower fixing seat 41, and an adjusting screw 452 parallel to the second positioning pillar 421, wherein one end of the adjusting screw 452 along the length direction thereof is rotatably connected to an end surface of the second positioning pillar 421, the adjusting screw 452 rotates along the axis thereof, and the other end thereof penetrates through the adjusting seat 451 and is connected to the adjusting seat with a thread thereof. One end of the adjusting screw 452 away from the second positioning column 421 is fixedly provided with a lower driving handle 453.
As shown in fig. 2, in order to improve the stability of the use of the lower mounting clamping mechanism 4, the bottom end of the first lower clamping plate 43 and the bottom end of the second lower clamping plate 44 are respectively connected with the top surface of the base 2 in an abutting manner, a first lower clamping through groove adapted to the steel wire is formed in the side surface of the first lower clamping plate 43 close to the second lower clamping plate 44, a rubber layer is arranged on the side surface of the first lower clamping plate 43 close to the second lower clamping plate 44, a second lower clamping through groove adapted to the steel wire is formed in the side surface of the second lower clamping plate 44 close to the first lower clamping plate 43, and a rubber layer is also arranged on the side surface of the second lower clamping plate 44 close to the first lower clamping plate 43.
As shown in fig. 3 and 4, the upper mounting clamping mechanism 5 includes an upper fixing base 51, a mounting screw 52 is fixedly disposed at an end of the upper fixing base 51 away from the swing arm 3, the mounting screw 52 is disposed perpendicular to the swing arm 3, a mounting sleeve 53 is threadedly connected to an outer peripheral surface of the mounting screw 52, and an upper driving handle 531 is fixedly disposed on an outer peripheral surface of the mounting sleeve 53. A first upper clamping plate 54 and a second upper clamping plate 55 which are sleeved on the peripheral surface of the mounting screw 52 are arranged between the mounting sleeve 53 and the upper fixing seat 51, the first upper clamping plate 54 and the second upper clamping plate 55 are respectively connected with the mounting screw 52 in a sliding manner, and the first upper clamping plate 54 is positioned between the upper fixing seat 51 and the second upper clamping plate 55. One end of the upper fixing seat 51 close to the mounting sleeve 53 is fixedly provided with two first upper positioning posts 511, the two first upper positioning posts 511 are arranged at intervals, the first upper positioning posts 511 are parallel to the mounting screw 52, and the side surface of the first upper clamping plate 54 close to the first upper positioning posts 511 is provided with a first upper clamping groove matched with the first upper positioning posts 511. Second upper plate 55 and installation sleeve 53 are contradicted and are connected, and first upper plate 54 has set firmly two locating pins 541 near the side of second upper plate 55, and two locating pins 541 set up at the interval, and the positioning groove with locating pin 541 looks adaptation is seted up to the side of second upper plate 55. Referring to fig. 5, two fastening screws 56 are fixedly disposed at one end of the upper fixing base 51 close to the swing arm 3, and the two fastening screws 56 are disposed at intervals. The one end that fixing screw 62 kept away from last fixing base 51 runs through rocking arm 3 threaded connection and has fastening nut 57, and rocking arm 3 has seted up the regulation logical groove 58 with fastening screw 56 looks adaptation along its length direction, and fastening screw 56 removes in adjusting logical groove 58.
As shown in fig. 3 and 4, in order to improve the stability of the use of the upper mounting clamping mechanism 5, the mounting screw 52 is provided with a yielding through groove 521 adapted to the steel wire, the side of the first upper clamping plate 54 close to the second upper clamping plate 55 is provided with a first upper clamping through groove adapted to the steel wire, the side of the first upper clamping plate 54 close to the second upper clamping plate 55 is also provided with a rubber layer, the side of the second upper clamping plate 55 close to the first upper clamping plate 54 is provided with a second upper clamping through groove adapted to the steel wire, and the side of the second upper clamping plate 55 close to the first upper clamping plate 54 is also provided with a rubber layer.
As shown in fig. 5, the number of the guide means 6 is two, and the two guide means 6 are provided at intervals along the length direction of the swing arm 3. The guide mechanism 6 comprises a guide block 61 which is connected with the side face of the rocker arm 3 in an abutting mode, a guide through groove 611 matched with the steel wire is formed in the top face of the guide block 61, two fixing screw rods 62 are fixedly arranged at one end, close to the rocker arm 3, of the guide block 61, and the two fixing screw rods 62 are arranged at intervals. The one end that guide block 61 was kept away from to set screw 62 runs through rocking arm 3 threaded connection and has fixation nut 63, and rocking arm 3 is seted up along its length direction and is led to the groove 64 with the installation of set screw 62 looks adaptation, and the groove 64 is led to in the installation and is linked together with regulation groove 58, and set screw 62 removes in the logical groove 64 of installation.
As shown in fig. 6, the positioning mechanism 7 includes a fixing block 71 fixed on the top surface of the base 2, one end of the fixing block 71 is slidably connected with an adjusting rack 72, the adjusting rack 72 is parallel to the rotating shaft 21, a clamping rod 73 is fixedly extended from one end of the adjusting rack 72 along the length direction, the clamping rod 73 is parallel to the rotating shaft 21, the cross section of the clamping rod 73 is circular, and a socket groove matched with the clamping rod 73 is formed in the side surface of the rocker arm 3. The side wall of the fixed block 71 is rotatably connected with a driving rotating shaft 74 above the adjusting rack 72, and the driving rotating shaft 74 is perpendicular to the rotating shaft 21. An adjusting gear 75 engaged with the adjusting rack 72 is fixedly arranged on the outer peripheral surface of the driving rotating shaft 74. One end of the driving rotating shaft 74 far away from the fixed block 71 is fixedly provided with a positioning driving handle 741.
As shown in fig. 6, the adjusting rack 72 is fixedly provided with a sliding rod 76 along the length direction thereof, that is, the sliding rod 76 is parallel to the adjusting rack 72, the cross section of the sliding rod 76 is arranged in a convex shape, the side surface of the fixing block 71 is provided with a sliding groove adapted to the sliding rod 76, and the sliding rod 76 moves in the sliding groove. Limiting plates 721 for limiting the moving distance of the adjusting rack 72 are respectively fixed at both ends of the adjusting rack 72.
When the steel wire is installed, namely the positioning mechanism 7 is in a use state, the rocker arm 3 is arranged along the height direction, one end, far away from the adjusting rack 72, of the clamping rod 73 is located in the inserting groove, when the steel wire is bent, namely the positioning mechanism 7 is in an unused state, the clamping rod 73 is separated from the rocker arm 3, and the clamping rod 73 is located outside the inserting groove.
As shown in fig. 1 and 7, in order to count the number of rotations of the wire, the base 1 is provided with a counting mechanism 8 for counting the number of rotations of the rocker arm 3. The counting mechanism 8 comprises an electronic counting probe 81 fixedly arranged on the top surface of the base 1, a magnet block 82 matched with the electronic counting probe 81 is fixedly arranged on the side surface of the rocker arm 3, and the electronic counting probe 81 is electrically connected with the central processing unit.
As shown in fig. 1 and 7, in order to determine the rotation angle of the rocker arm 3 and make the rotation angle of the rocker arm 3 be 180 degrees, the top surface of the base 1 is fixedly provided with two limiting posts 11 on two sides of the rotation shaft 21, i.e. the number of the limiting posts 11 is two, the rocker arm 3 rotates between the two limiting posts 11, the rotation angle of the rocker arm 3 is 180 degrees, and when the rocker arm 3 is in contact with one of the limiting posts 11, the rocker arm 3 is in a horizontal state.
As shown in fig. 1 and 4, in order to stabilize the rotation of the rocker arm 3, the end of the rocker arm 3 remote from the rotation axis 21 is provided with a securing mechanism 9. The stabilizing mechanism 9 comprises an installation block 91 fixedly arranged on the side surface of the rocker arm 3, the installation block 91 is positioned on one side of the upper installation clamping mechanism 5, which is far away from the rotating shaft 21, a diverting pulley 92 is arranged on one side of the installation block 91, which is far away from the rotating shaft 21, the axis of the diverting pulley 92 is perpendicular to the axis of the rotating shaft 21, the axis of the diverting pulley 92 is perpendicular to the rocker arm 3, the diverting pulley 92 is positioned on one side of the installation block 91, which is far away from the rotating shaft 21, the side wall of the rocker arm 3 is provided with a yielding through groove matched with the diverting pulley 92, and the diverting pulley 92 is rotatably supported in the yielding through groove. Referring to fig. 5, a wire winding rope 93 is fixedly disposed on the top surface of the mounting block 91, one end of the wire winding rope 93, which is far away from the mounting block 91, passes through the steering pulley 92, the base 2, and the counterweight 94 fixed to the base 1, and two ends of the wire winding rope 93 are located on two sides of the rocker arm 3.
As shown in fig. 5 and 6, in order to improve the stability of the use of the winding rope 93, two guide pulleys 95 are rotatably supported on the side of the swing arm 3 close to the base 2 on both sides of the winding rope 93, the axes of the guide pulleys 95 are parallel to the axis of the steering pulley 92, the winding rope 93 is located between the two guide pulleys 95, and the two guide pulleys 95 are located on the side of the swing arm 3 close to the rotating shaft 21. The rocker arm 3 is also rotatably supported, laterally between the guide pulley 95 and the rotating shaft 21, by two auxiliary pulleys 96, the axis of the auxiliary pulleys 96 being parallel to the axis of the diverting pulley 92, the two auxiliary pulleys 96 being located on either side of the wire 93, i.e. the wire 93 being located between the two auxiliary pulleys 96. The fixed block 71 is rotatably supported by two supporting pulleys 97 near the side wall of the rocker arm 3, the axis of the supporting pulley 97 is parallel to the axis of the diverting pulley 92, and the two supporting pulleys 97 are positioned on both sides of the wire 93, i.e., the wire 93 is positioned between the two supporting pulleys 97.
The end of the rocker arm 3 far away from the rotating shaft 21 is provided with the stabilizing mechanism 9, when the rocker arm 3 rotates to one side from a vertical state, an operator presses the rocker arm 3 downwards and rotates the rocker arm 3, when the rocker arm 3 returns to the vertical state, the balancing weight 94 drives the rocker arm 3 to rotate through the winding rope 93, the operator presses the rocker arm 3 downwards and controls the rotating speed of the rocker arm 3, the labor intensity of the operator is reduced, the reciprocating rotating speed of the rocker arm 3 is more uniform, the accuracy of steel wire detection is improved, the stability and the practicability of the steel wire repeated bending test device are improved, meanwhile, the supporting pulley 97 applies acting force to the winding rope 93, the acting force of the base 2 to the winding rope 93 is reduced, the winding rope 93 is prevented from being broken due to repeated friction between the winding rope 93 and the base 2, the use safety of the stabilizing mechanism 9 is improved, the guide pulley 95 and the auxiliary pulley 96 reduce the distance between the steering pulley 92 and the supporting pulley 97, the stability of the use of the securing mechanism 9 is improved.
Meanwhile, through the mutual matching of the lower mounting clamping mechanism 4 and the upper mounting clamping mechanism 5, the first lower clamping plate 43, the second lower clamping plate 44, the first upper clamping plate 54 and the second upper clamping plate 55 can be replaced according to the requirements of steel wires, the stability of steel wire mounting is improved, the number of the guide mechanisms 6 is two, the guide mechanisms can be adjusted along the length direction of the rocker arm 3, the upper mounting clamping mechanism 5 can also be adjusted along the length direction of the rocker arm 3, the accuracy of steel wire detection is improved, and the practicability of the steel wire repeated bending test device is further improved.
The method for detecting the steel wire by using the steel wire repeated bending test device comprises the following steps:
a: cutting a steel wire with the length of 200 mm and 250mm, preferably 230mm, and straightening;
b: the driving handle 741 is rotated and positioned, and the clamping rod 73 is positioned in the insertion groove, at this time, the rocker arm 3 is in a vertical state and is set as an initial position;
c: taking a first lower clamping plate 43 and a second lower clamping plate 44 which have the same diameter as the steel wire and are respectively installed on the steel wire repeated bending test device, and taking a first upper clamping plate 54 and a second upper clamping plate 55 which have the same diameter as the steel wire and are respectively installed on the steel wire repeated bending test device;
d: adjusting the distance between the two guide blocks 61, the upper fixing seat 51 and the base 2;
e: the bottom end of the steel wire is extended between the first lower clamping plate 43 and the second lower clamping plate 44, the top end of the steel wire is passed through the guide grooves of the two guide blocks 61, and the top end of the steel wire is extended between the first upper clamping plate 54 and the second upper clamping plate 55;
f: rotating the lower driving handle 453 to clamp the bottom end of the wire between the first lower clamping plate 43 and the second lower clamping plate 44, and rotating the upper driving handle 531 to clamp the top end of the wire between the first upper clamping plate 54 and the second upper clamping plate 55 to maintain the wire in a vertical state;
g: the positioning driving handle 741 is rotated to separate the latch lever 73 from the swing arm 3, and at this time, the swing arm 3 rotates along the axis of the rotating shaft 21;
h: uniformly rotating the rocker arm 3, wherein the rocker arm 3 rotates from the initial position to one side and returns to the initial position for counting once, then rotates to the other side and returns to the initial position for counting twice until the steel wire is broken, and the rocker arm 3 does not count in the last time of the steel wire bending and breaking, and the total number of times of rotation of the rocker arm 3 is counted;
i: the wire is removed from between the first lower clamping plate 43 and the second lower clamping plate 44 and between the first upper clamping plate 54 and the second upper clamping plate 55, and the inspection of the wire is completed.
When examining the steel wire, straighten the steel wire, make the installation of steel wire more stable, detect more accurate, through set up firm mechanism 9 on rocking arm 3, make rocking arm 3 reciprocating rotation's speed more even moreover, and then make the atress of steel wire more even, improved the accuracy that the steel wire detected.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (8)
1. The utility model provides a steel wire bending test device that relapses which characterized in that: the steel wire clamping device comprises a base (1), a base (2) arranged on the base (1), a rotating shaft (21) rotatably connected to one end of the base (2) and arranged in the horizontal direction, a rocker arm (3) fixedly arranged on the rotating shaft (21) and far away from one end of the base (2) and capable of rotating in a vertical plane, a lower mounting clamping mechanism (4) arranged on the top surface of the base (1) and used for clamping the bottom end of a steel wire, an upper mounting clamping mechanism (5) arranged on the side surface of the rocker arm (3) and used for clamping the top end of the steel wire, and a guide mechanism (6) arranged on the side surface of the rocker arm (3) and located between the lower mounting clamping mechanism (4) and the upper mounting clamping mechanism (5), wherein a positioning mechanism (7) used for enabling the rocker arm (3) to keep a vertical state is arranged on the base (2), a stabilizing mechanism (9) is arranged at one end, far away from the rotating shaft (21), of the rocker arm (3), and comprises a mounting block (91) fixedly arranged on the side surface of the rocker arm (3), The rope winding device comprises a steering pulley (92) rotatably supported on a rocker arm (3) and a rope winding rope (93) fixedly arranged on an installation block (91), wherein the installation block (91) is positioned on one side, far away from a lower installation clamping mechanism (4), of an upper installation clamping mechanism (5), the steering pulley (92) is positioned on one side, far away from the upper installation clamping mechanism (5), of the installation block (91), one end, far away from the installation block (91), of the rope winding rope (93) winds around the steering pulley (92), penetrates through a base (2) and penetrates through a base (1) to be fixedly provided with a balancing weight (94), the axis of the steering pulley (92) is vertical to the axis of a rotating shaft (21), the axis of the steering pulley (92) is vertical to the rocker arm (3), and two ends of the rope winding rope (93) are positioned on two sides of the rocker arm (3);
two supporting pulleys (97) are rotatably supported on the top surface of the base (2), the axes of the supporting pulleys (97) are parallel to the axis of the steering pulley (92), and the wire winding rope (93) is positioned between the two supporting pulleys (97);
positioning mechanism (7) including set firmly fixed block (71) on base (2) top surface, with fixed block (71) adjusting rack (72) that slides and be connected, rotate drive pivot (74) of support on fixed block (71), set firmly drive pivot (74) outer peripheral face and with adjusting rack (72) engaged with adjusting gear (75), adjusting rack (72) and axis of rotation (21) are parallel, the one end extension of adjusting rack (72) has set firmly joint pole (73), the grafting recess with joint pole (73) looks adaptation is seted up to rocking arm (3) side, and when joint pole (73) were located the grafting recess, rocking arm (3) were in the vertical state.
2. The steel wire bending test device according to claim 1, wherein: two guide pulleys (95) are rotatably supported on the side face of the rocker arm (3) between the diverting pulley (92) and the supporting pulley (97), the axes of the guide pulleys (95) are parallel to the axis of the diverting pulley (92), and the wire winding rope (93) is positioned between the two guide pulleys (95).
3. The steel wire bending test device according to claim 1, wherein: the top surface of the base (1) is fixedly provided with limiting columns (11) on two sides of the rotating shaft (21), the rocker arm (3) rotates between the two limiting columns (11), and the rotating angle of the rocker arm (3) is 180 degrees.
4. The steel wire bending test device according to claim 1, wherein: and limiting plates (721) are fixedly arranged at two ends of the adjusting rack (72) respectively.
5. The steel wire bending test device according to claim 1, wherein: guiding mechanism (6) include with rocker arm (3) side laminating guide block (61), set firmly at fixing screw (62) of guide block (61) one end, guide block (61) top surface offer with steel wire looks adaptation lead to groove (611), fixing screw (62) keep away from the one end of guide block (61) and run through rocker arm (3) threaded connection have fixation nut (63), rocker arm (3) are seted up along its length direction with the logical groove (64) of installation of fixing screw (62) looks adaptation.
6. The steel wire bending test device according to claim 1, wherein: a counting mechanism (8) is arranged between the base (1) and the rocker arm (3).
7. The steel wire bending test device according to claim 6, wherein: counting mechanism (8) are including setting up electron count probe (81) at base (1) top surface, electron count probe (81) and central processing unit electricity are connected, rocking arm (3) side is provided with magnet piece (82) with electron count probe (81) looks adaptation.
8. A steel wire inspection method using the steel wire bending test device according to any one of claims 1 to 7, characterized in that: the method comprises the following steps:
a: cutting out the steel wire with the length of 200-250mm and straightening;
b: adjusting a positioning mechanism (7) to enable the rocker arm (3) to be in a vertical state and set to be at an initial position;
c: adjusting the lower mounting clamping mechanism (4) and the upper mounting clamping mechanism (5) to be matched with the diameter of the steel wire;
d: adjusting the lower mounting clamping mechanism (4), the upper mounting clamping mechanism (5) and the guide mechanism (6) to be matched with the length of the steel wire;
e: the bottom end of the steel wire extends into the lower mounting and clamping mechanism (4), the top end of the steel wire penetrates through the guide mechanism (6), and the top end of the steel wire extends into the upper mounting and clamping mechanism (5);
f: clamping the bottom end of the steel wire in a lower mounting and clamping mechanism (4), clamping the top end of the steel wire in an upper mounting and clamping mechanism (5), and keeping the steel wire in a vertical state;
g: adjusting the positioning mechanism (7) to enable the rocker arm (3) to rotate along the axis of the rotating shaft (21);
h: uniformly rotating the rocker arm (3), wherein the rocker arm (3) rotates from the initial position to one side and returns to the initial position, the number of the rocker arm is counted as one, then rotates to the other side and returns to the initial position, the number of the rocker arm (3) is counted as two until the steel wire is broken, and the rocker arm (3) is not counted in the last time of the bending and breaking of the steel wire, so that the total rotating times of the rocker arm (3) is counted;
i: and (3) removing the steel wire from the upper mounting clamping mechanism (5) and the lower mounting clamping mechanism (4) to finish the detection of the steel wire.
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| CN201910360781.8A CN110108582B (en) | 2019-04-30 | 2019-04-30 | Steel wire repeated bending test device and steel wire detection method |
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