Steel bar detection laser identification system

Abstract

The invention discloses a steel bar detection laser identification system, and relates to the technical field of steel bar laser positioning, the steel bar detection laser identification system comprises a workbench, the bottom of the workbench is provided with a supporting structure used for supporting the workbench, and the upper part of the workbench is provided with a laser unit used for carrying out laser identification on an object placed in an identification area of the workbench; the driving unit is arranged on the inner side of the workbench, at least two lantern ring assemblies are arranged in a driving area of the driving unit, the rebar identification penetrates through the lantern ring assemblies and makes contact with the lantern ring assemblies during installation, clamping structures are arranged at the two ends of the rebar, and at least one end of each clamping structure is arranged to be a fixed end and drives the rebar to rotate. The lantern ring assembly is coaxial with the fixed end when not making contact with the steel bars. The laser unit is perpendicular to the workbench. Movement of the reinforcing steel bar in the bending process is achieved in two modes, it is guaranteed that the distance between a laser emitting point and the surface of the reinforcing steel bar is stable in the laser marking process, and the bending state of the reinforcing steel bar is compensated in the process of driving the reinforcing steel bar to rotate.

Description

Technical Field

[0001] The invention relates to the technical field of steel bar laser positioning, in particular to a steel bar detection laser marking system. Background Art

[0002] The steel bar tensile test is an important method for evaluating the mechanical properties of steel bars. It is mainly used to determine the yield strength, tensile strength and elongation of steel bars. It is very important to maintain measurement accuracy in the steel bar tensile test. Accurate measurement can ensure the reliability and repeatability of the test results, thereby accurately evaluating the mechanical properties of the steel bars.

[0003] Announcement No. CN213945291U discloses a laser marking machine for steel bar detection, including a workbench, a fixture assembly, a laser device for marking steel bars on the fixture assembly, and a servo drive device for driving the fixture assembly to step and mark uniformly, the fixture assembly includes a fixture and a fixture seat, the fixture is installed on the fixture seat, and the fixture assembly is provided with multiple grooves with different inner diameters, and the multiple grooves are arranged in parallel. This application opens multiple parallel grooves on the fixture, so that multiple steel bars are parallel to each other and the front and rear parts of the steel bars are respectively placed in the grooves on two fixtures placed in front and behind; by opening grooves of different sizes on multiple fixtures, the synchronous marking of steel bars of different sizes is achieved.

[0004] In order to ensure stability and accuracy during the marking process, the steel bars are usually clamped at both ends to avoid errors caused by factors such as vibration. The steel bars deform during the tensile test. In order to avoid errors in the test results caused by deformation at the marking position, it is necessary to increase the marking length on the outer surface of the steel bar so that multiple reference points can be obtained when deformation occurs.

[0005] By fixing the steel bar and moving the laser to mark, the focal length needs to be adjusted according to the distance between the outer surface of the steel bar and the laser emission point. Therefore, it is more stable to complete the laser marking of the outer surface by rotating the steel bar. However, the steel bar to be marked is not completely straight. The method of rotating the steel bar by clamping both ends of the steel bar will also cause the distance between the steel bar and the laser emission point to change, affecting the marking accuracy. Summary of the invention

[0006] One of the purposes of the present invention is to provide a steel bar detection laser marking system, which changes the clamping position of the steel bar according to the bending state of the steel bar to ensure the stability of the distance between the steel bar and the laser emission point, avoid the deterioration of marking accuracy due to the bending of the steel bar, and affect the mechanical property evaluation of the steel bar in the tensile test.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a steel bar detection laser marking system, comprising:

[0008] A workbench, a support structure for supporting the workbench is disposed at the bottom thereof, and a laser unit is disposed at the top of the workbench for laser marking an object placed in a marking area of ​​the workbench;

[0009] A driving unit is arranged inside the workbench. At least two collar assemblies are arranged in the driving area of ​​the driving unit. When the steel bar marker is installed, it passes through the collar assemblies and contacts the collar assemblies. Clamping structures are arranged at both ends of the steel bar. At least one end of the clamping structure is arranged as a fixed end and drives the steel bar to rotate. When the collar assembly is not in contact with the steel bar, it is coaxial with the fixed end.

[0010] A fixed platform is arranged on the upper part of the workbench, at least one of the fixed platform and the laser unit is connected to the driving unit and driven by the driving unit to change the position of the laser unit corresponding to the fixed platform, and the clamping structure is installed at both ends of the fixed platform and at least clamps one end of the steel bar;

[0011] The laser unit is perpendicular to the workbench, a trigger element is arranged between at least two collar assemblies, the trigger element is triggered when the collar assemblies contact each other, a stand is arranged in the driving area of ​​the driving unit, and the collar assembly is connected to the stand and driven by the stand when the trigger element is triggered.

[0012] In one or more embodiments of the present invention, the above-mentioned clamping assembly is configured at both ends of the steel bar to clamp the steel bar, wherein the clamping assembly is respectively a positioning structure and a fixed end, the fixed end output shaft extends into the positioning structure, and the clamping assembly includes at least one fixed end, and the positioning structure includes:

[0013] The positioning frame is detachably mounted on the upper surface of the fixing platform by bolts, and a hole coaxially arranged with the output shaft of the fixing end is provided in the middle of the positioning frame;

[0014] The positioning plate is rotatably arranged inside the positioning frame. A support structure is configured inside the positioning plate to support the steel bar. A connecting component is configured at the bottom of the positioning plate to realize linkage with the collar component. When the steel bar is laser marked, the collar component is the recording end, and the connecting component changes the state of the supporting structure to the reproducing end.

[0015] The supporting structure clamps and secures the steel bars.

[0016] In one or more embodiments of the present invention, the above-mentioned support structure includes:

[0017] A push rod is telescopically arranged inside the positioning plate, a support member for supporting the push rod is arranged between the push rod and the positioning plate, and the push rod is extended to the outer wall of the steel bar and contacts the steel bar under the support of the support member;

[0018] The gusset plate is buckled on the outside of the positioning plate and extends to the inside of the positioning plate for limiting. The gusset plate contacts the ejector rod and the contact surface between the gusset plate and the ejector rod is an inclined surface. When the gusset plate is buckled on the outside of the positioning plate, the ejector rod is squeezed and the position of the ejector rod is limited.

[0019] One end of the push rod away from the elastic member is an arc-shaped structure.

[0020] In one or more embodiments of the present invention, the above-mentioned connection assembly includes:

[0021] The chuck is rotatably arranged inside the positioning frame, and a plurality of limiters are arranged inside the chuck, the limiters contact the positioning plate and limit the position of the positioning plate, and a top plate is arranged at the bottom of the chuck and extends to the inside of the top plate, and the top plate contacts the limiters and adjusts the support position of the limiter frame for the positioning plate;

[0022] The transmission unit is located at the bottom of the card plate to support the card plate. When the fixed end drives the steel bar to rotate, the ring assembly changes the height of the card plate through the transmission unit. A positioning piece is arranged on the outside of the chuck to limit the position of the limit piece.

[0023] In one or more embodiments of the present invention, the above-mentioned limiting member includes:

[0024] A top frame is arranged inside the chuck, a positioning rod is arranged in the middle of the top frame and extends to the inside of the chuck, the chuck extends to the inside of the chuck and contacts the positioning rod, and the height change of the chuck changes the supporting length of the top frame through the positioning rod;

[0025] A flexible plate is installed at one end of the chuck away from the chuck, and the flexible plate is bendable and is arranged in a closed loop;

[0026] The limiters include:

[0027] An electromagnetic ring is fixed on the inner side of the positioning frame;

[0028] The insert rod is set at a rotatable position of the chuck. The insert rod is in a cone shape. A squeezing ring is set outside the side of the insert rod facing the electromagnetic ring. The squeezing ring is magnetically set. After the electromagnetic ring is energized, the insert rod moves toward the electromagnetic ring and the squeezing ring moves away from the electromagnetic ring. The insert rod and the squeezing ring squeeze the top frame to limit the swing of the top frame.

[0029] In one or more embodiments of the present invention, the above-mentioned fixing end includes:

[0030] The driving motor is installed on the outside of the positioning frame. A driving disk that is consistent with the maximum installation size inside the positioning frame is arranged on one side of the positioning disk. The output end of the driving motor is directly connected to the driving disk or connected to the driving disk through gear meshing and drives the driving disk to move.

[0031] The driving disc and the chuck are driven by meshing with the idler wheel, and the driving disc and the positioning disc are driven by magnetic connection.

[0032] In one or more embodiments of the present invention, the above-mentioned collar assembly includes:

[0033] The centering frame is connected to the frame platform through an electromagnetic strip. A symmetrical clamping plate is arranged in the middle of the centering frame. The steel bar is located in the middle of the clamping plate. A cavity is arranged at one end of the clamping plate extending to the inside of the centering frame. The steel bar rotates to push the clamping plate to squeeze the medium in the cavity.

[0034] The recording table is detachably installed inside the fixed table and connected to the centering frame through a hydraulic pipe. The hydraulic pipe is connected to the cavity. A retractable guide wheel is arranged inside the recording table and the retraction of the guide wheel is controlled by the change of the medium inside the recording table. The retraction of the guide wheel squeezes the transmission unit.

[0035] In one or more embodiments of the present invention, the transmission unit includes:

[0036] A guide rail is installed inside the fixed platform, a slidable connecting frame is arranged outside the guide rail, and electromagnetic units are arranged at both ends of the connecting frame to control the position of the connecting piece;

[0037] The slide is fixed on the inner side of the guide rail. A positioning platform is arranged at the output end of the slide. The internal configuration of the positioning platform and multiple regulating components change position under the push of the guide wheel. The regulating components include:

[0038] The distance measuring sensor is fixed inside the positioning platform, and a slidable regulating rod is arranged outside the distance measuring sensor and contacts with the guide wheel;

[0039] The spring piece is arranged at the bottom of the regulating rod. A micro magnet is arranged at the bottom of the spring piece to adsorb the spring piece. When the micro magnet of the spring piece does not adsorb the spring piece, the spring piece moves toward the regulating rod and limits the position of the regulating rod.

[0040] In one or more embodiments of the present invention, the transmission unit further includes:

[0041] The support block is slidably arranged inside the fixed platform, the end of the regulating rod extending outside the fixed platform is set in a spherical shape, the inner side of the support block is provided with a groove for accommodating the regulating rod, and the regulating rod cooperates with the groove to adjust the position of the support block;

[0042] The top of the support block is inclined and in contact with the pallet, and the movement of the support block drives the pallet to move up and down.

[0043] In one or more embodiments of the present invention, the trigger element is a pressure button, and the pressure button is squeezed when adjacent ring assemblies are in contact, and the position of the ring assembly is determined by the trigger state of the pressure button.

[0044] Through the above technical solution, the present invention has the following beneficial effects:

[0045] 1. This application realizes the movement of the steel bar during the bending process in two ways to ensure that the distance between the laser emission point and the steel bar surface is stable during the laser marking process. By recording the bending state of the steel bar and compensating for the bending state of the steel bar in the process of driving the steel bar to rotate, the accuracy of the steel bar during the marking process is guaranteed, and the mechanical property evaluation in the tensile test is guaranteed.

[0046] 2. The present application clamps the steel bars at both ends of the steel bars to ensure the stability of the steel bars. The clamping of the steel bars is divided into two different states, and both include at least one rotatable fixed end, which rotates the steel bars as a whole and keeps the distance between the surface of the steel bars and the laser emission point stable during the rotation. Both ends of the steel bars are fixed.

[0047] 3. During the rotation of the steel bar, the deformation of the steel bar in the axis is detected by the ring assembly coaxially configured with the fixed end, and the deformation of the steel bar axis is recorded. When the steel bar is marked by the laser, the steel bar is supported by changing its state to ensure that the distance between the outer surface of the steel bar and the laser emission point is stable during the marking process.

[0048] 4. Multiple ring assemblies are arranged on the outside of the steel bar to fit the outer surface of the steel bar, record the changes of the outer surface and drive the ring assembly to move. The ring assembly is magnetically connected to the driving unit. After the driving unit moves to the specified position, the ring assembly is detached and fits the outer surface of the steel bar. The ring assembly is embedded on the inner side of the workbench to limit the movement of the ring assembly and ensure the stability of the ring structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 A perspective view of the present invention;

[0050] Figure 2 It is a schematic diagram of removing the workbench and the supporting structure of the present invention;

[0051] Figure 3 It is a partial structural schematic diagram of the present invention;

[0052] Figure 4 It is a schematic diagram of the fixing platform installation structure of the present invention;

[0053] Figure 5 It is a schematic diagram of the clamping structure of the present invention;

[0054] Figure 6 is a cross-sectional view of a positioning frame of the present invention;

[0055] Figure 7 The internal structure of the positioning frame of the present invention explodes Figure 1 ;

[0056] Figure 8 The internal structure of the positioning frame of the present invention explodes Figure 2 ;

[0057] Fig. 9 The chuck disassembly diagram of the present invention;

[0058] Fig.10 It is a schematic diagram of the top frame structure of the present invention;

[0059] Fig.11 is a schematic diagram of a collar assembly of the present invention;

[0060] Fig.12 It is a schematic diagram of the cavity of the present invention;

[0061] Fig.13 A top cross-sectional view of a fixing platform of the present invention;

[0062] Fig.14 It is a schematic diagram of the idler wheel connection of the present invention;

[0063] Fig.15 It is a front cross-sectional view of the control rod of the present invention.

[0064] In the figure: 1 working table, 2 supporting structure, 3 laser unit, 4 driving unit, 5 collar assembly, 6 clamping structure, 7 fixing table, 8 trigger element, 9 stand;

[0065] 61 positioning structure, 62 fixed end;

[0066] 611 positioning frame, 612 positioning plate, 613 connecting assembly, 614 ejector rod, 615 supporting member, 616 gusset plate;

[0067] 6131 chuck, 6132 transmission unit, 6133 pallet;

[0068] 631 top frame, 632 positioning rod, 633 flexible plate, 634 electromagnetic ring, 635 plug rod, 636 extrusion ring;

[0069] 621 driving motor, 622 driving disc, 623 idler wheel;

[0070] 51 centering frame, 52 clamping plate, 53 cavity, 54 recording table, 55 guide wheel;

[0071] 6131 guide rail, 6132 connecting frame, 6133 electromagnetic unit, 6134 slide table, 6135 positioning table, 6136 regulating component, 6137 support block, 6138 groove;

[0072] 361 distance measuring sensor, 362 control rod, 363 spring piece, 364 micro magnet. DETAILED DESCRIPTION

[0073] The following will disclose multiple embodiments of the present invention with the accompanying drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not necessary. And if it is possible to implement, the features of different embodiments can be applied interchangeably.

[0074] Unless otherwise defined, all words (including technical and scientific terms) used herein have their usual meanings, which can be understood by those familiar with this field. Furthermore, the definitions of the above words in commonly used dictionaries should be interpreted as the meanings consistent with the relevant fields of the present invention in the content of this specification. Unless otherwise clearly defined, these words will not be interpreted as idealized or overly formal meanings.

[0075] See also Figure 1-Figure 15 The present invention provides a steel bar detection laser marking system, which can generate marks on the outer surface of the steel bar by laser. It is suitable for marking operations of steel bars in tensile tests, and is particularly suitable when the steel bars are axially bent.

[0076] In one embodiment, the identification system includes:

[0077] A workbench 1, a support structure 2 for supporting the workbench is disposed at the bottom thereof, and a laser unit 3 is disposed on the top of the workbench 1 for laser marking an object placed in a marking area of ​​the workbench 1;

[0078] A driving unit 4 is arranged inside the workbench 1. At least two collar assemblies 5 are arranged in the driving area of ​​the driving unit 4. When the steel bar marker is installed, it passes through the collar assemblies 5 and contacts the collar assemblies 5. Clamping structures 6 are arranged at both ends of the steel bar. At least one end of the clamping structure 6 is arranged as a fixed end 62 and drives the steel bar to rotate. When the collar assembly 5 is not in contact with the steel bar, it is coaxial with the fixed end 62.

[0079] A fixed platform 7 is arranged on the upper part of the workbench 1. At least one of the fixed platform 7 and the laser unit 3 is connected to the driving unit 4 and driven by the driving unit 4 to change the position of the laser unit 3 corresponding to the fixed platform 7. The clamping structure 6 is installed at both ends of the fixed platform 7 and at least clamps one end of the steel bar.

[0080] The laser unit 3 is perpendicular to the workbench 1. A trigger element 8 is arranged between at least two collar assemblies 5. The trigger element 8 is triggered when the collar assemblies 5 contact each other. A stand 9 is configured in the driving area of ​​the driving unit 4. When the trigger element 8 is triggered, the collar assembly 5 is connected to the stand 9 and driven by the stand 9.

[0081] Optionally, the laser unit 3 is composed of a laser power supply: providing power for the laser, usually with an input voltage of AC220V; a laser: a core component that generates a laser beam. Common lasers include fiber lasers, CO2 lasers, semiconductor lasers, etc.; a galvanometer scanning system: composed of an optical scanner and a servo control system, used to control the moving path of the laser beam; a focusing system: focusing the parallel laser beam on a point, usually using an f-θ lens; and a computer control system: the control center of the entire device, which is operated and parameter adjusted through software.

[0082] In this embodiment, the laser unit 3 is set in an adjustable state. When in use, the corresponding position adaptation can be performed according to the state of the steel bar. The steel bar is columnar, and the axis position of the fixed end 62 is fixed. The laser extends toward the axis of the fixed end 62 through the focusing system.

[0083] At least one of the laser unit 3 and the fixed platform 7 is connected to the driving unit 4. When in use, the position of the laser-marked steel bar can be adjusted, and the steel bar can be marked at different positions. During the marking process, the steel bar is driven to rotate by the fixed end 62, and the laser marks the outer wall of the steel bar.

[0084] Optionally, the fixing table 7 is provided with two groups of clamping structures 6, which are installed in parallel on the upper part of the fixing table 7. The fixing table 7 can slide outside to change the axis of the fixed end 62 corresponding to the laser unit 3. The two groups of clamping components have different structures and can both drive the steel bars to rotate.

[0085] In one embodiment, the clamping assembly is configured at both ends of the steel bar to clamp the steel bar, wherein the clamping assembly is respectively positioned at the structure 61 and the fixed end 62, the output shaft of the fixed end 62 extends into the interior of the positioning structure 61, and the clamping assembly includes at least one fixed end 62, and the positioning structure 61 includes:

[0086] The positioning frame 611 is detachably mounted on the upper surface of the fixing platform 7 by bolts, and a hole is provided in the middle of the positioning frame 611 which is coaxial with the output shaft of the fixing end 62;

[0087] The positioning plate 612 is rotatably arranged inside the positioning frame 611. The positioning plate 612 is provided with a support structure 2 inside to support the steel bar. The bottom of the positioning plate 612 is provided with a connecting component 613 to realize linkage with the collar component 5. When the steel bar is laser marked, the collar component 5 is the recording end, and the connecting component 613 changes the state of the supporting structure 2 to the reproducing end.

[0088] The supporting structure 2 clamps and fixes the steel bars.

[0089] In this embodiment, the main function of the fixed end 62 is to drive the steel bar to rotate, and the setting of the fixed end 62 corresponds to the movement mode of the steel bar. When the fixed end 62 is set at both ends, the fixed end 62 rotates synchronously and changes the corresponding height of the steel bar with the support structure 2 through the connecting component 613. When laser marking is performed, the distance between the outer surface of the steel bar and the laser emission point is always maintained during the rotation of the steel bar.

[0090] The positioning disk 612 moves inside the positioning frame 611, and the size of the positioning disk 612 is smaller than the maximum installation size inside the positioning frame 611. Therefore, the movement of the positioning disk 612 inside the positioning frame 611 may not coincide with the axis of the hole, and the axis of the positioning disk 612 is parallel to the axis of the hole.

[0091] In one embodiment, the support structure 2 comprises:

[0092] A push rod 614 is telescopically disposed inside the positioning plate 612, and a support member 615 for supporting the push rod 614 is disposed between the push rod 614 and the positioning plate 612. Under the support of the support member 615, the push rod 614 extends to the outer wall of the steel bar and contacts the steel bar;

[0093] The buckle plate 616 is buckled on the outside of the positioning plate 612 and extends to the inside of the positioning plate 612 for limiting. The buckle plate 616 contacts the push rod 614 and the contact surface between the buckle plate 616 and the push rod 614 is an inclined surface. When the buckle plate 616 is buckled on the outside of the positioning plate 612, the push rod 614 is squeezed and the position of the push rod 614 is limited.

[0094] One end of the top rod 614 away from the elastic member is an arc-shaped structure.

[0095] In this embodiment, the top rod 614 is supported by an elastic member. During use, the arc structure of the top rod 614 can be stably contacted with the outer surface of the steel bar. For laser marking of steel bar detection, the sizes of steel bars to be marked are different. Therefore, one end of the top rod 614 is set to an arc structure, which can ensure that the top rod 614 is in stable one-point contact with the steel bar.

[0096] In order to ensure the stability of the clamping of the top rod 614 after it contacts the steel bar, a plurality of top rods 614 with the same spacing angles are arranged in a circular array, and the top rods 614 arranged in the circular array are all in contact with the steel bar. For the elastic parts arranged in a circular manner, under the action of the gravity of the steel bar, the elastic parts at the bottom of the steel bar will be affected by the gravity, while the elastic parts at the top will not be affected by the gravity. The setting of the buckle plate 616 can utilize the inclined surface to form an extrusion on the top rod 614, thereby ensuring the centering degree of the top rod 614 compared to the positioning plate 612.

[0097] The position of the corresponding top rod 614 is different depending on the specifications of the steel bars. In order to ensure the stable restriction of the top rod 614 by the clip plate 616, a spirally extending guide groove is configured at one end of the clip plate 616 inserted into the positioning plate 612. The clip plate 616 enters the inner side of the positioning plate 612 along the guide groove to adapt to the top rods 614 in different positions.

[0098] Optionally, the elastic member is set as a spring, which pushes the push rod 614 to move toward the axis of the positioning plate 612 under the action of the spring. The elastic force of the spring corresponds to the centering state of the steel bar. When the elastic force of the spring is greater than the gravity of the steel bar, the stable centering state of the steel bar is guaranteed.

[0099] Alternatively, the elastic member is configured as two repelling magnets, which are respectively fixed to the top rod 614 and the inside of the positioning plate 612 , and the top rod 614 is controlled to move toward the axis of the positioning plate 612 by magnetic force.

[0100] In one embodiment, the connection component 613 includes:

[0101] The chuck 6131 is rotatably disposed inside the positioning frame 611. A plurality of limiting members are disposed inside the chuck 6131. ​​The limiting members contact the positioning plate 612 and limit the position of the positioning plate 612. A top plate is disposed at the bottom of the chuck 6131 and extends to the inside of the top plate. The top plate contacts the limiting members and adjusts the support position of the limiting frame for the positioning plate 612.

[0102] The transmission unit 6132 is located at the bottom of the clamping plate 6133 to support the clamping plate 6133. When the fixed end 62 drives the steel bar to rotate, the ring assembly 5 changes the height of the clamping plate 6133 through the transmission unit 6132. A positioning piece is set on the outside of the clamping plate 6131 to limit the position of the limit piece.

[0103] In this embodiment, the movement of the transmission unit 6132 causes the ring assembly 5 and the chuck 6131 to move synchronously. When marking the steel bars, the steel bars are installed and driven to rotate by the fixed end 62. The steel bars change the state of the ring assembly 5 when rotating. The ring assembly 5 changes the height state of the chuck 6131 through the transmission unit 6132. The transmission unit 6132 synchronously drives the chuck 6131 to move. After the limit member moves, the stability of the limit member is ensured by the positioning member.

[0104] The positioning disk 612 extends to the middle of the chuck 6131 and its position is limited by a limiter, so that the positioning disk 612 is offset. In order to ensure that the positioning disk 612 does not change during the recording process, the positioning disk 612 and the limiter are magnetically connected, that is, the positioning disk 612 adapts to the shape change of the limiter through magnetic force.

[0105] In one embodiment, the limiting member includes:

[0106] The top frame 631 is arranged inside the chuck 6131. ​​A positioning rod 632 is arranged in the middle of the top frame 631 and extends to the inside of the chuck 6131. ​​The chuck 6131 extends to the inside of the chuck 6131 and contacts the positioning rod 632. The height change of the chuck 6131 changes the supporting length of the top frame 631 through the positioning rod 632.

[0107] A flexible plate 633 is installed at one end of the chuck 6131 away from the chuck 6131, and the flexible plate 633 is bendable and is arranged in a closed loop;

[0108] The limiters include:

[0109] The electromagnetic ring 634 is fixed to the inner side of the positioning frame 611;

[0110] The insert rod 635 is arranged at a rotatable position of the chuck 6131. ​​The insert rod 635 is in a cone shape. A squeezing ring 636 is arranged on the outside of the side of the insert rod 635 facing the electromagnetic ring 634. The squeezing ring 636 is magnetically arranged. After the electromagnetic ring 634 is energized, the insert rod 635 moves toward the electromagnetic ring 634, and the squeezing ring 636 moves away from the electromagnetic ring 634. The insert rod 635 and the squeezing ring 636 squeeze the top frame 631 to limit the swing of the top frame 631.

[0111] Optionally, a magnetic plate is provided on one side of the top frame 631 close to the positioning disk 612 , and the magnetic plate is correspondingly installed on the top frame 631 and the inner side of the positioning disk 612 , and the magnetic plate magnetically changes the position of the positioning disk 612 based on the length of the top frame 631 .

[0112] In this embodiment, the top frame 631 is hingedly assembled through a connecting rod, and the insertion rod 635 is located at the connecting rod connection position. After the electromagnetic ring 634 generates magnetic force, the friction between the insertion rod 635 and the connecting rod is increased to limit the position of the connecting rod.

[0113] In order to reset the insertion rod 635, a support spring is provided at one end of the insertion rod 635 to support the insertion rod 635, and in order to avoid friction between the electromagnetic ring 634 and the extrusion plate, the electromagnetic ring 634 rotates synchronously with the chuck 6131.

[0114] In another embodiment, since the top frame 631 is individually adjusted by the position of the clamping plate 6133, the electromagnetic ring 634 is composed of small electromagnetic blocks corresponding to the number of the top frames 631, and each small electromagnetic block can be set separately. Under this design, considering the difficulty of arranging the line of the electromagnetic ring 634 following the rotation of the chuck 6131, the marking system makes the following changes:

[0115] The first is that the fixed end 62 drives the steel bar to rotate by using a positive and negative detection method, that is, the rotation direction when recording the steel bar bending is opposite to that when reproducing it through the connecting component 613;

[0116] The second method is to install the electromagnetic ring 634 on the inner side of the positioning frame 611, and control the insertion rod 635 and the extrusion plate through the chuck 6131, without limiting the rotation direction of the steel bar.

[0117] In one embodiment, the fixing end 62 includes:

[0118] The driving motor 621 is installed outside the positioning frame 611. A driving disk 622 having the same maximum installation size as the inner part of the positioning frame 611 is arranged on one side of the positioning disk 612. The output end of the driving motor 621 is directly connected to the driving disk 622 or connected to the driving disk 622 through gear meshing and drives the driving disk 622 to move.

[0119] The driving disk 622 and the chuck 6131 are meshed and driven by the idler wheel 623, and the driving disk 622 and the positioning disk 612 are connected and driven by magnetic force.

[0120] In this embodiment, the setting of the driving disk 622 can control the position of the positioning disk 612 while driving the chuck 6131 to rotate. When the axes of the positioning disk 612 and the driving disk 622 need to coincide, the magnetic element set inside the driving disk 622 generates magnetic force to adsorb the permanent magnet set on the positioning disk 612, so that the positioning disk 612 and the driving disk 622 rotate synchronously. During the laser marking process, the positioning disk 612 is separated from the magnetic connection with the driving disk 622 and is clamped and rotated by the limit member.

[0121] Optionally, in order to facilitate the installation of the steel bars, the middle of the driving disk 622 is set to be in a hollow state, and the buckle plate 616 is installed from the middle of the driving disk 622 to the outside of the positioning disk 612 to form a restriction on the top rod 614.

[0122] In one embodiment, the collar assembly 5 comprises:

[0123] The centering frame 51 is connected to the frame 9 through an electromagnetic strip. A vertically symmetrical clamping plate 52 is provided in the middle of the centering frame 51. The steel bar is located in the middle of the clamping plate 52. A cavity 53 is provided at one end of the clamping plate 52 extending to the inside of the centering frame 51. The steel bar rotates to push the clamping plate 52 to squeeze the medium in the cavity 53.

[0124] The recording table 54 is detachably mounted inside the fixed table 7 and connected to the centering frame 51 through a hydraulic pipe, the hydraulic pipe is connected to the cavity 53, a retractable guide wheel 55 is arranged inside the recording table 54, and the retraction of the guide wheel 55 is controlled by the change of the medium located inside the recording table 54, and the retraction of the guide wheel 55 squeezes the transmission unit 6132.

[0125] In this embodiment, the setting of the clamping plate 52 can push the medium to change its position when the steel bar is displaced, and the change of the medium is used to adjust the height change of the clamping plate 6133 through the transmission unit 6132, so that the top frame 631 is deformed and the position of the positioning plate 612 is changed. When performing laser marking, it is ensured that the laser emission point is at the same distance from the outer surface of the steel bar.

[0126] The change of the medium corresponds to the change of the position of the guide wheel 55 . The change of the position of the guide wheel 55 is determined to change the position of the transmission unit 6132 . The change of the position of the transmission unit 6132 causes the chuck 6131 to change.

[0127] In one embodiment, the transmission unit 6132 includes:

[0128] The guide rail 6131 is installed inside the fixed platform 7. A slidable connecting frame 6132 is arranged outside the guide rail 6131. ​​Electromagnetic units 6133 are arranged at both ends of the connecting frame 6132 to control the position of the connecting piece.

[0129] The slide 6134 is fixed to the inner side of the guide rail 6131. ​​A positioning platform 6135 is provided at the output end of the slide 6134. The positioning platform 6135 is internally configured with a plurality of regulating components 6136 which change position under the push of the guide wheel 55. The regulating components 6136 include:

[0130] The distance measuring sensor 361 is fixed inside the positioning platform 6135, and a slidable regulating rod 362 is arranged outside the distance measuring sensor 361 and contacts with the guide wheel 55;

[0131] The spring piece 363 is arranged at the bottom of the regulating rod 362. A micro magnet 364 is configured at the bottom of the spring piece 363 to adsorb the spring piece 363. When the micro magnet 364 of the spring piece 363 does not adsorb the spring piece 363, the spring piece 363 moves toward the regulating rod 362 and limits the position of the regulating rod 362.

[0132] In this embodiment, the guide wheel 55 extends to the interior of the positioning platform 6135 and contacts the regulating rod 362, pushing the regulating rod 362 to change position. In order to facilitate the resetting of the regulating rod 362, the end of the regulating rod 362 away from the guide wheel 55 supports the regulating rod 362 through a spring.

[0133] The distance sensor 361 controls the power on and off of the micro magnet 364. When the distance sensor 361 detects that the guide wheel 55 passes, it controls the corresponding micro magnet 364 to cut off the power. The spring 363 pops up to increase the friction of the control rod 362, thereby limiting the movement of the control rod 362.

[0134] In another embodiment, the spring piece 363 and the micro magnet 364 are both installed inside the regulating rod 362, and the outer side of the spring piece 363 is anti-skid rubber. After the micro magnet 364 is powered off, the anti-skid rubber adheres to the inner wall of the positioning platform 6135.

[0135] In one embodiment, the transmission unit 6132 further includes:

[0136] The support block 6137 is slidably disposed inside the fixed platform 7. The end of the regulating rod 362 extending to the outside of the fixed platform 7 is set in a spherical shape. The inner side of the support block 6137 is provided with a groove 6138 for accommodating the regulating rod 362. The regulating rod 362 cooperates with the groove 6138 to adjust the position of the support block 6137.

[0137] The top of the support block 6137 is tilted and in contact with the card plate 6133. The movement of the support block 6137 drives the card plate 6133 to move up and down.

[0138] In this embodiment, the telescopic change of the regulating rod 362 is adjusted to the movement of the support block 6137, which can change the position of the support block 6137. The top of the support block 6137 is inclined and in contact with the card plate 6133. The card plate 6133 moves up and down under the push of the support block 6137, so that the positioning rod 632 pushes the top frame 631 to move.

[0139] In one embodiment, the trigger element 8 is a pressure button. When adjacent collar assemblies 5 are in contact, the pressure button is squeezed, and the position of the collar assembly 5 is determined by the trigger state of the pressure button.

[0140] Although the present invention is disclosed in conjunction with the above embodiments, it is not intended to limit the present invention. Anyone familiar with this technology can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be based on the definition of the attached claims.

Claims

1. A steel bar detection laser marking system, characterized in that: include A workbench, a support structure for supporting the workbench is disposed at the bottom thereof, and a laser unit is disposed at the top of the workbench for laser marking an object placed in a marking area of ​​the workbench; A driving unit is arranged inside the workbench. At least two collar assemblies are arranged in the driving area of ​​the driving unit. When the steel bar marker is installed, it passes through the collar assemblies and contacts the collar assemblies. Clamping structures are arranged at both ends of the steel bar. At least one end of the clamping structure is arranged as a fixed end and drives the steel bar to rotate. When the collar assembly is not in contact with the steel bar, it is coaxial with the fixed end. A fixed platform is arranged on the upper part of the workbench, at least one of the fixed platform and the laser unit is connected to the driving unit and driven by the driving unit to change the position of the laser unit corresponding to the fixed platform, and the clamping structure is installed at both ends of the fixed platform and at least clamps one end of the steel bar; The laser unit is perpendicular to the workbench, a trigger element is arranged between at least two collar assemblies, the trigger element is triggered when the collar assemblies contact each other, a stand is arranged in the driving area of ​​the driving unit, and the collar assembly is connected to the stand and driven by the stand when the trigger element is triggered.

2. A steel bar detection laser marking system according to claim 1, characterized in that: The clamping assembly is configured with two ends of the steel bar to clamp the steel bar, wherein the clamping assembly is respectively a positioning structure and a fixed end, the output shaft of the fixed end extends into the interior of the positioning structure, and the clamping assembly includes at least one fixed end, and the positioning structure includes: The positioning frame is detachably mounted on the upper surface of the fixing platform by bolts, and a hole coaxially arranged with the output shaft of the fixing end is provided in the middle of the positioning frame; The positioning plate is rotatably arranged inside the positioning frame. A support structure is configured inside the positioning plate to support the steel bar. A connecting component is configured at the bottom of the positioning plate to realize linkage with the collar component. When the steel bar is laser marked, the collar component is the recording end, and the connecting component changes the state of the supporting structure to the reproducing end. The supporting structure clamps and secures the steel bars.

3. A steel bar detection laser marking system according to claim 2, characterized in that: The supporting structure includes: A push rod is telescopically arranged inside the positioning plate, a support member for supporting the push rod is arranged between the push rod and the positioning plate, and the push rod is extended to the outer wall of the steel bar and contacts the steel bar under the support of the support member; The gusset plate is buckled on the outside of the positioning plate and extends to the inside of the positioning plate for limiting. The gusset plate contacts the ejector rod and the contact surface between the gusset plate and the ejector rod is an inclined surface. When the gusset plate is buckled on the outside of the positioning plate, the ejector rod is squeezed and the position of the ejector rod is limited. One end of the push rod away from the elastic member is an arc-shaped structure.

4. A steel bar detection laser marking system according to claim 3, characterized in that: The connection components include: The chuck is rotatably arranged inside the positioning frame, and a plurality of limiters are arranged inside the chuck, the limiters contact the positioning plate and limit the position of the positioning plate, and a top plate is arranged at the bottom of the chuck and extends to the inside of the top plate, and the top plate contacts the limiters and adjusts the support position of the limiter frame for the positioning plate; The transmission unit is located at the bottom of the card plate to support the card plate. When the fixed end drives the steel bar to rotate, the ring assembly changes the height of the card plate through the transmission unit. A positioning piece is arranged on the outside of the chuck to limit the position of the limit piece.

5. A steel bar detection laser marking system according to claim 4, characterized in that: The limiters include: A top frame is arranged inside the chuck, a positioning rod is arranged in the middle of the top frame and extends to the inside of the chuck, the chuck extends to the inside of the chuck and contacts the positioning rod, and the height change of the chuck changes the supporting length of the top frame through the positioning rod; A flexible plate is installed at one end of the chuck away from the chuck, and the flexible plate is bendable and is arranged in a closed loop; The limiters include: An electromagnetic ring is fixed on the inner side of the positioning frame; The insert rod is set at a rotatable position of the chuck. The insert rod is in a cone shape. A squeezing ring is set outside the side of the insert rod facing the electromagnetic ring. The squeezing ring is magnetically set. After the electromagnetic ring is energized, the insert rod moves toward the electromagnetic ring and the squeezing ring moves away from the electromagnetic ring. The insert rod and the squeezing ring squeeze the top frame to limit the swing of the top frame.

6. A steel bar detection laser marking system according to claim 5, characterized in that: The fixed end includes: The driving motor is installed on the outside of the positioning frame. A driving disk that is consistent with the maximum installation size inside the positioning frame is arranged on one side of the positioning disk. The output end of the driving motor is directly connected to the driving disk or connected to the driving disk through gear meshing and drives the driving disk to move. The driving disc and the chuck are driven by meshing with the idler wheel, and the driving disc and the positioning disc are driven by magnetic connection.

7. A steel bar detection laser marking system according to claim 1, characterized in that: The collar assembly includes: The centering frame is connected to the frame platform through an electromagnetic strip. A symmetrical clamping plate is arranged in the middle of the centering frame. The steel bar is located in the middle of the clamping plate. A cavity is arranged at one end of the clamping plate extending to the inside of the centering frame. The steel bar rotates to push the clamping plate to squeeze the medium in the cavity. The recording table is detachably installed inside the fixed table and connected to the centering frame through a hydraulic pipe. The hydraulic pipe is connected to the cavity. A retractable guide wheel is arranged inside the recording table and the retraction of the guide wheel is controlled by the change of the medium inside the recording table. The retraction of the guide wheel squeezes the transmission unit.

8. A steel bar detection laser marking system according to claim 7, characterized in that: The transmission unit includes: A guide rail is installed inside the fixed platform, a slidable connecting frame is arranged outside the guide rail, and electromagnetic units are arranged at both ends of the connecting frame to control the position of the connecting piece; The slide is fixed on the inner side of the guide rail. A positioning platform is arranged at the output end of the slide. The internal configuration of the positioning platform and multiple regulating components change position under the push of the guide wheel. The regulating components include: The distance measuring sensor is fixed inside the positioning platform, and a slidable regulating rod is arranged outside the distance measuring sensor and contacts with the guide wheel; The spring piece is arranged at the bottom of the regulating rod. A micro magnet is arranged at the bottom of the spring piece to adsorb the spring piece. When the micro magnet of the spring piece does not adsorb the spring piece, the spring piece moves toward the regulating rod and limits the position of the regulating rod.

9. A steel bar detection laser marking system according to claim 8, characterized in that: The transmission unit also includes: The support block is slidably arranged inside the fixed platform, the end of the regulating rod extending outside the fixed platform is set in a spherical shape, the inner side of the support block is provided with a groove for accommodating the regulating rod, and the regulating rod cooperates with the groove to adjust the position of the support block; The top of the support block is inclined and in contact with the pallet, and the movement of the support block drives the pallet to move up and down.

10. A steel bar detection laser marking system according to claim 1, characterized in that: The trigger element is a pressure button. When adjacent collar components are in contact, the pressure button is squeezed, and the position of the collar component is determined by the trigger state of the pressure button.

Images