Large-sized h-shaped steel laser cutting machine

Abstract

The present application belongs to the technical field of laser cutting machine, and particularly relates to a super-large H-shaped steel laser cutting machine, which comprises a conveying roller assembly arranged on a frame, multiple pairs of sliding seats, a screw rod transmission assembly matched with the sliding seats one by one, an expansion cylinder assembly arranged on each sliding seat, a roller frame unit fixed at the end of the cylinder rod of each expansion cylinder assembly, and a control unit. The multiple pairs of sliding seats are arranged in front of and behind each other. The two sliding seats in each pair are oppositely arranged on the left and right sides of the conveying roller assembly. The sliding seat is matched with the frame through a track structure. The screw rod transmission assembly is fixed on the frame and can drive the sliding seat matched therewith to move left and right. The roller frame unit comprises a frame body fixedly connected with the end of the cylinder rod, and multiple roller shafts pivotally matched with the frame body and arranged in front of and behind each other. The outer circumferential surface of the side of the roller shaft away from the expansion cylinder assembly is exposed outside the frame body. The present application can touch the upper part of the web plate during the feeding process of the super-large H-shaped steel, and can prevent the super-large H-shaped steel from being laterally bent.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of laser cutting machines, and particularly relates to a super-large H-shaped steel laser cutting machine. BACKGROUND

[0002] H-shaped steel is an economic section high-efficiency profile with more optimized section area distribution and more reasonable strength-weight ratio, and is named because its section is the same as the English letter "H". The product specifications of H-shaped steel are various, and the classification methods are as follows. 1) According to the flange width of the product, the H-shaped steel is divided into wide flange, medium flange and narrow flange H-shaped steel; 2) According to the product application, the H-shaped steel is divided into H-shaped steel beam, H-shaped steel column, H-shaped steel pile and extremely thick flange H-shaped steel beam; 3) According to the production mode, the H-shaped steel is divided into welded H-shaped steel and rolled H-shaped steel; 4) According to the size specification, the H-shaped steel is divided into large, medium and small H-shaped steel, and the product with a web height of more than 700 mm is usually called large. The super-large H-shaped steel referred to in the present application is based on the size specification, and the web height is more than 1200 mm (corresponding to the matching wing plate size of about 4000 mm or more).

[0003] In the processing of super-large H-shaped steel, a conveying roller assembly is usually used for feeding and feeding. Because the web of the super-large H-shaped steel is relatively high, and the stretching of the wing plate is also relatively long, the force applied by each rotating roller of the conveying roller assembly on the lower wing plate is uneven, which causes the problems of easy side bending / tilting and deviation of the super-large H-shaped steel during feeding and cutting feeding. SUMMARY

[0004] In order to overcome the problem of side bending, the present application provides a super-large H-shaped steel laser cutting machine which can support and touch the upper part of the web during the feeding of the super-large H-shaped steel, and can prevent the super-large H-shaped steel from side bending during the conveying and feeding of the super-large H-shaped steel.

[0005] The technical solution adopted by the present application to solve the technical problem is: a super-large H-shaped steel laser cutting machine, comprising a conveying roller assembly arranged on a rack, a plurality of pairs of sliding seats, a screw drive assembly matched with the sliding seat one by one, a telescopic cylinder assembly arranged on each sliding seat, and a roller frame unit fixedly arranged at the end of the cylinder rod of each telescopic cylinder assembly.

[0006] The conveying roller assembly moves in the front-rear direction, that is, it can convey / feed the super-large H-shaped steel in the front-rear direction.

[0007] The plurality of pairs of sliding seats are arranged alternately in the front-rear direction. The two sliding seats in each pair are arranged oppositely on the rack and are distributed on the left and right sides of the conveying roller assembly. The sliding seat is matched with the rack through the track structure arranged in the left-right direction. At the same time, the screw drive assembly is fixed on the rack and can drive the sliding seat matched therewith to move reciprocally in the left-right direction.

[0008] The roller frame unit comprises a frame body fixedly connected with the cylinder rod end, and a plurality of roller shafts pivotally matched with the frame body and arranged in front and back.

[0009] Optionally, the telescopic cylinder assembly is a screw electric cylinder assembly.

[0010] Optionally, a plurality of annular grooves vertically arranged are formed on the outer circumferential surface of the roller shaft.

[0011] Optionally, four pairs of matched transmission units and detection units are further included, and the detection units are connected with the control unit. The paired transmission units and detection units are arranged on the same frame body, and a pair of transmission units and detection units are arranged on each of the left and right frame bodies; meanwhile, the four pairs of transmission units and detection units are arranged on two pairs of frame bodies that are not adjacent.

[0012] The transmission unit comprises a base plate fixedly connected with the frame body and a perturbation mechanism. The two perturbation mechanisms arranged on the same frame body are arranged in front and back. One end of the perturbation mechanism is arranged on the base plate and can be matched with the detection unit paired therewith, and the other end can be in contact with the side surface of the web of the super H-shaped steel.

[0013] During the conveying and feeding of the super H-shaped steel, the web can make the perturbation mechanism produce irregular shifting action, and can cause the detection unit to generate a sensing signal. The control unit can process the sensing signal fed back by the detection unit, and can send an action instruction to the corresponding telescopic cylinder assembly.

[0014] Optionally, two U-shaped bodies arranged in front and back and respectively matched with the two perturbation mechanisms are formed on the base plate. The openings of the U-shaped bodies are all directed away from the side of the telescopic cylinder assembly. The perturbation mechanism comprises a rack body and a swing arm.

[0015] Pivot shaft portions respectively matched with the two upright arms of the U-shaped body are formed at the front and rear ends of the rack body, and a spring member is sleeved on the pivot shaft portion, so that the rack body can reciprocate in the front and back directions relative to the U-shaped body.

[0016] One end of the swing arm is pivotally arranged on the base plate, and a gear portion capable of meshing and matching with a rack surface on the rack body is arranged on the pivot. The rack surface extends in the front and back directions. The other end of the swing arm extends outward relative to the side of the frame body away from the telescopic cylinder assembly and is pivotally provided with a roller. The wheel surface of the roller can be in contact with the web. The two swing arms arranged on the same frame body are both arranged obliquely relative to the left and right directions, and the extension directions of the other ends of the two swing arms can intersect.

[0017] The movement of the web can cause the swing arm to swing around a vertical axis, and through the meshing matching of the gear part and the rack surface, the rack body can move in the front and back directions. The detection unit matches the free end of the pivot part provided at one end side of the rack body, and can convert the movement condition of the rack body in the front and back directions into a sensing signal.

[0018] Optionally, a multi-stage through hole corresponding to the pivot part is formed on the upright arm of the U-shaped body, and a threaded counterbore is formed on the inner end side of the multi-stage through hole. A screw ring is sleeved on the pivot part, and one end of the screw ring matches the threaded counterbore.

[0019] One end of the spring member contacts the front end surface or the rear end surface of the rack body, and the other end contacts the other end surface of the screw ring.

[0020] The pivot part can pass through the shaft hole of the screw ring and move in the front and back directions relative to the screw ring.

[0021] Optionally, the detection unit includes a sensor body, a support seat fixed on the base plate, and a movable member fixed to the free end of the pivot part. The sensor body is provided on the support seat. The movable member extends in the front and back directions and extends into the sensor body. When the movable member moves / acts with the rack body, the sensor body can generate a sensing signal.

[0022] Optionally, the detection unit includes a sensor body, a support seat fixed on the base plate, and a movable member matching one end of the disturbance mechanism. The sensor body is provided on the support seat. The movable member extends in the front and back directions and extends into the sensor body. When the movable member acts with the disturbance mechanism, the sensor body can generate a sensing signal.

[0023] Optionally, the sensor body is a capacitive sensor body or a grating sensor body.

[0024] When the sensor body is a capacitive sensor body, an intermediate medium plate is provided on the end side of the movable member extending into the sensor body, and the intermediate medium plate can correspondingly match the two electrode plates of the capacitive sensor body.

[0025] When the sensor body is a grating sensor body, a dynamic grating part is provided on the end side of the movable member extending into the sensor body, and the dynamic grating part can correspondingly match the fixed grating part of the grating sensor body.

[0026] Optionally, the sensor body is a capacitive sensor body, at which time, the lower part of the sensor body is formed with two rim arms opposite to each other and extending downward, and the two electrode plates of the capacitive sensor body are respectively fixed on the two rim arms.

[0027] The moving part extends to one side of the sensor body and forms a trapezoidal plate part, and the middle part of the trapezoidal plate part extends into the two electrode plates, and the front end side and the rear end side of the trapezoidal plate part are exposed outside the electrode plates by a certain length.

[0028] The trapezoidal plate part can be formed as a trapezoidal plate body extending through the front and rear, and can also be the following case:

[0029] The trapezoidal plate part includes a rectangular plate end, and trapezoidal plate section one and trapezoidal plate section two formed on the front and rear ends of the rectangular plate end, and the short side of the trapezoidal plate section two is formed as a free end side. The length of the rectangular plate end is consistent with the length of the electrode plate.

[0030] A first transition rectangular plate section is formed between the rectangular plate end and the short side of the trapezoidal plate section one; a second transition rectangular plate section is formed between the rectangular plate end and the long side of the trapezoidal plate section two. The width of the first transition rectangular plate section is greater than the width of the rectangular plate end and less than the width of the short side of the trapezoidal plate section one; the width of the second transition rectangular plate section is less than the width of the rectangular plate end and greater than the width of the long side of the trapezoidal plate section two. The rectangular plate end on the trapezoidal plate part can be adjusted to correspond between the electrode plates, so that the front and rear ends of the rectangular plate end are aligned with the front and rear ends of the electrode plate, and the first transition rectangular plate section and the second transition rectangular plate section are located on the outer side of the front and rear ends of the electrode plate.

[0031] An end cap part connected with the pivot part in a threaded structure is provided on the moving part, so that the front and rear positions of the free end of the moving part can be adjusted.

[0032] The extension length of the first transition rectangular plate section and the second transition rectangular plate section in the front and rear direction is controlled to be 1mm to 2mm.

[0033] The beneficial effects of the present application are that the present application can be in contact with the upper part of the web during the feeding process of the super-large H-shaped steel, and can prevent the super-large H-shaped steel from being skewed during the conveying and feeding process of the super-large H-shaped steel. In addition, in the optimization scheme, by introducing a transmission unit and a detection unit, and associating the detection unit with part of the telescopic cylinder assembly, the deviation of the super-large H-shaped steel can be detected and controlled, which helps to ensure that the super-large H-shaped steel is conveyed and fed in the front and rear direction in accordance with the requirements. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 It is a front view of the partial structure of the present application.

[0035] Figure 2 It is a top view of the partial structure of the present application.

[0036] Figure 3 It is Figure 2 It is a partial enlarged structure diagram of A in the middle.

[0037] Figure 4 For Figure 2 Local enlarged structure diagram at B in the middle.

[0038] Figure 5 For the local top view structure diagram of the swing arm, rack body, detection unit, etc. associated matching.

[0039] Figure 6 For the front view structure diagram of the detection unit.

[0040] Figure 7 For Figure 6 Local enlarged structure diagram at C in the middle.

[0041] Figure 8 For Figure 6 Local enlarged structure diagram at D in the middle.

[0042] In the figure: 100 super large H-shaped steel, 101 wing plate, 102 web; 10 rack; 20 conveying roller assembly, 21 rotating roller; 30 slide; 40 screw transmission assembly; 50 telescopic cylinder assembly; 60 roller frame unit, 61 frame body, 62 roller shaft; 70 transmission unit, 71 base plate, 711 U-shaped body, 72 disturbance mechanism, 721 rack body, 7211 rack surface, 7212 pivot part, 7213 spiral ring, 7214 spring piece, 722 swing arm, 7221 gear part, 7222 roller; 80 detection unit, 81 sensor body, 811 arm, 812 electrode plate, 82 support seat, 821 leg, 83 movable piece, 831 end cap part, 832 intermediate medium plate, 8321 rectangular plate end, 8322 trapezoidal plate segment one, 8323 trapezoidal plate segment two, 8324 first transition rectangular plate segment, 8325 second transition rectangular plate segment. DETAILED DESCRIPTION

[0043] The structure, proportion, size, etc. shown in the drawings of the specification are only used to cooperate with the content disclosed in the specification for understanding and reading by those skilled in the art, and do not have technical substantive significance, and any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "upper", "lower", "front", "rear", "intermediate" etc. cited in the specification are only for the convenience of clear understanding of the description, and are not used to limit the scope of the present application, and the change or adjustment of the relative relationship, without substantial change of the technical content, is also regarded as the implementation scope of the present application.

[0044] As Figures 1 to 4The illustrated one kind of super H-shaped steel laser cutting machine, including the conveying roller assembly 20 that is established on the frame 10, multiple pairs of slide 30, with the slide 30 one-to-one corresponding matching lead screw drive assembly 40, in each described slide 30 on the upper part is set up respectively telescopic cylinder assembly 50, fixedly established in each described telescopic cylinder assembly 50 cylinder rod end roller bracket unit 60 and with described conveying roller assembly 20, described lead screw drive assembly 40, described telescopic cylinder assembly 50 connection control unit. That is, the slide 30 has multiple pairs, and the number of the lead screw drive assembly 40, the number of the telescopic cylinder assembly 50 and the number of the roller bracket unit 60 are consistent with the number of the slide 30. The conveying roller assembly 20, the lead screw drive assembly 40, the telescopic cylinder assembly 50 are connected with the control unit, so that the control unit can control their respective action state.

[0045] The conveying roller assembly 20 moves in the front and rear direction, and the wing plate 101 at the lower part of the super H-shaped steel 100 is in tangential contact with the rotating roller 21 in the conveying roller assembly 20, so that the conveying roller assembly 20 can convey / feed the super H-shaped steel 100 in the front and rear direction. The control unit can control the feeding speed and direction of the conveying roller assembly 20.

[0046] The multiple pairs of slides 30 are arranged in front and back, and the two slides 30 in each pair (left and right) are oppositely arranged on the frame 10 and distributed on the left and right sides of the conveying roller assembly 20. The slide 30 is matched with the track structure arranged in the left and right directions, and the lead screw drive assembly 40 is fixed on the frame 10, which can drive the slide 30 matched therewith to move reciprocally in the left and right directions. The slide 30 is oppositely located above the upper end surface of the conveying roller assembly 20. The inner end side (left end side, right end side) of the slide 30 can be moved above the left edge or above the right edge of the conveying roller assembly 20 (see Figure 1 、 Figure 2 ), and can be moved to the upper left side position of the left edge and the upper right side position of the right edge.

[0047] The telescopic cylinder assembly 50 is preferably a screw type electric cylinder assembly, and the control unit can control the feeding direction and feeding amount of the screw type electric cylinder assembly to accurately control the contact state of the roller shaft 62 (mentioned below) with the web 102 of the super H-shaped steel 100. The telescopic cylinder assembly 50 can also be selected as a hydraulic or pneumatic telescopic cylinder assembly, but the control accuracy of these two forms of telescopic cylinders is relatively poor compared with the screw type electric cylinder.

[0048] The roller frame unit 60 comprises a frame body 61 fixedly connected with the cylinder rod end, and three roller shafts 62 pivotally matched with the frame body 61 and arranged in front and back alternately. The axial direction of the roller shaft 62 extends in the vertical direction, and the outer circumferential surface of the roller shaft 62 away from the side (left or right side) of the telescopic cylinder assembly 50 is exposed outside the frame body 61, see Figure 3 、 Figure 4 .

[0049] The frame body 61 is in the shape of “[” and is vertically arranged with the opening away from the telescopic cylinder assembly 50, and the vertical plate is fixedly connected with the cylinder rod end. The upper end and the lower end of the roller shaft 62 are respectively pivotally arranged on the two horizontal plates of the frame body 61, and the outer circumferential surface of the roller shaft 62 can be partially exposed outside the (vertical) free end surface of the horizontal plate. The top (side line) of the exposed outer circumferential surface of the three roller shafts 62 arranged on the same frame body 61 is distributed in the same vertical plane. The top of the exposed outer circumferential surface of the roller shafts 62 arranged on the same side (left or right side) of the frame body 61 can be located in approximately the same vertical plane at the same time, and can simultaneously contact the upper part of the left and right side surfaces of the web plate 102 of the super-large H-shaped steel 100, see Figure 1 .

[0050] The roller frame unit 60 can move its left and right positions (in the horizontal plane) during the movement of the sliding seat 30 and the telescopic action of the cylinder rod of the telescopic cylinder assembly 50, so that the frame body 61 can carry the roller shaft 62 to approach the web plate 102 of the super-large H-shaped steel 100 from the left and right sides of the super-large H-shaped steel 100, and move to the lower part of the upper flange plate 101 of the super-large H-shaped steel 100 to contact the upper part of the left and right side surfaces of the web plate 102. Finally, by means of the left and right two rows of roller frame units 60 arranged in front and back directions, the upper part of the web plate 102 of the super-large H-shaped steel 100 is supported and contacted, which can effectively prevent the super-large H-shaped steel 100 from being skewed during conveying and feeding, and can also inhibit the degree of deviation of the super-large H-shaped steel 100.

[0051] In order to avoid that the multiple pairs of roller frame units 60 arranged in left and right directions excessively clamp the web plate 102 and affect the conveying / feeding of the super-large H-shaped steel 100, in use, the exposed outer circumferential surface of the roller shaft 62 can contact the upper part of the web plate 102, without the need to apply a pushing force or an excessive pushing force. After the roller shaft 62 contacts the web plate 102, the relative (moving) frictional resistance between the roller shaft 62 and the web plate 102 can be reduced by the rotation of the roller shaft 62. In order to further reduce the resistance caused by the roller shaft 62 to the conveying / feeding of the super-large H-shaped steel 100, a plurality of annular grooves vertically and alternately arranged are formed on the outer circumferential surface of the roller shaft 62.

[0052] The control unit can simultaneously control the screw drive assembly 40 on both sides to act synchronously with the telescopic cylinder assembly, so that the roller shafts 62 on both sides can approach the web plate 102 at the same time and move away from the web plate 102 at the same time, so as to switchably support and touch the web plate 102 and release the support and touch of the web plate 102.

[0053] In the above scheme, the slide 30 cooperates with the telescopic cylinder assembly 50 to control the feeding of the roller frame unit 60 in the left-right direction, so that the length of the cylinder rod of the telescopic cylinder assembly 50 (or the entire length of the telescopic cylinder body) can be relatively short, the adverse effects caused by the cantilever effect can be inhibited, the frame body 61 can move along the horizontal direction while carrying the roller shafts 62, the outer peripheral side of the roller shafts 62 can be kept in the vertical plane, and sufficient contact with the upper left side and the upper right side of the web plate 102 can be ensured to guarantee the supporting and touching effect.

[0054] As shown in Figures 2 to 8 The present application also includes four pairs of matched transmission units 70 and detection units 80, as shown in Figure 2 The detection units 80 are connected to the control unit and can feed sensing signals to the control unit. Specifically, the transmission units 70 and the detection units 80 in each pair are arranged on the same frame body 61, and a pair of transmission units 70 and detection units 80 are arranged on each of the left and right opposing frame bodies 61, Figure 3 As shown in Figure 2 , three pairs of frame bodies 61 are arranged, and two pairs of transmission units 70 and detection units 80 are arranged on the frontmost pair of frame bodies 61 and the rearmost pair of frame bodies 61, respectively. If four or more pairs of frame bodies 61 are arranged, it is still preferred that two pairs of transmission units 70 and detection units 80 are arranged on the frontmost pair of frame bodies 61 and the rearmost pair of frame bodies 61, respectively; however, two pairs of transmission units 70 and detection units 80 can also be arranged on two pairs of frame bodies 61 that are not / are not immediately adjacent to each other and are separated by one or more pairs of frame bodies 61.

[0055] The transmission unit 70 includes a base plate 71 fixedly connected with the rack body 61 and a perturbation mechanism 72. Two perturbation mechanisms 72 provided on the same rack body 61 are arranged opposite to each other in front and back directions. The two perturbation mechanisms 72 provided on the same rack body 61 can share one base plate 71, and two detection units 80 corresponding to the two perturbation mechanisms 72 (i.e., corresponding to the two transmission units 70) can be fixedly arranged opposite to each other on the base plate 71, as shown in Figure 3 .

[0056] One end of the perturbation mechanism 72 is arranged on the base plate 71 and matched with the detection unit 80 corresponding thereto, and the other end can be in contact with the upper side of the side surface of the web 102 of the super H-shaped steel 100, that is, when the roller shaft 62 is in contact with the web 102, the other end of the perturbation mechanism 72 can be in contact with the web 102.

[0057] During the conveying and feeding of the super H-shaped steel 100, the web 102 (slightly offset to the left or to the right) can cause the perturbation mechanism 72 to move irregularly, and can cause the detection unit 80 to generate a related sensing signal. The control unit can process the sensing signal fed back by the detection unit 80, and send an action instruction to the corresponding telescopic cylinder assembly 50 (i.e., the telescopic cylinder assembly 50 associated with the rack body 61 on which the detection unit 80 is arranged). In this way, by arranging four pairs of the transmission unit 70 and the detection unit 80, and distributing them opposite to each other at the four corners of a rectangle and forming a relatively long distribution length in the front and back directions, the deviation of the super H-shaped steel 100 (the condition of deviation to the left or to the right relative to the front and back directions) can be detected, and the super H-shaped steel 100 can be conveyed and fed in the required front and back direction by controlling the pushing force of the corresponding telescopic cylinder assembly 50 on the web 102, so that the deviation of the super H-shaped steel 100 can be intervened and controlled, and it can well adapt to the working process with high requirements for laser cutting accuracy, and can promote / improve the accuracy and precision of the cutting direction, path, angle, etc., and help to obtain better precision cutting products.

[0058] Specifically, as shown in Figures 3 to 5 two U-shaped bodies 711 (or two [shaped bodies) corresponding to the two perturbation mechanisms 72, respectively, are formed on the upper end surface of the base plate 71. The openings of the U-shaped bodies 711 are all directed away from the telescopic cylinder assembly 50. The perturbation mechanism 72 includes a rack body 721 and a swing arm 722.

[0059] A pivot part 7212 is formed at the front and rear ends of the rack body 721 and can match the two vertical arms of the U-shaped body 711, and a spring member 7214 is sleeved on the pivot part 7212. The rack body 721 can be moved back and forth relative to the U-shaped body 711 by the expansion and contraction of the spring member 7214. A multi-stage through-hole structure is formed in the vertical arm of the U-shaped body 711 for the pivot part 7212 to pass through (forward and backward). One end of the spring member 7214 is in contact with the front and rear ends of the rack body 721, and the other end can be in contact with the bottom surface of a certain counterbore of the multi-stage through-hole structure.

[0060] One end of the swing arm 722 is pivotally arranged on the base plate 71, and a gear part 7221 that can engage and match the rack surface 7211 on the rack body 721 is arranged on the pivot. The rack surface 7211 extends in the front and rear directions.

[0061] The other end of the swing arm 722 extends outward relative to the side of the frame body 61 away from the telescopic cylinder assembly 50, and a roller 7222 is pivotally arranged. The wheel surface of the roller 7222 can be tangentially in contact with the side upper part of the web plate 102.

[0062] In the original state, the extension directions of the other ends (i.e., the ends where the rollers 7222 are arranged) of the two swing arms 722 (i.e., the pair of two swing arms 722) arranged on the same frame body 61 can intersect, as shown in Figure 3 .

[0063] During the conveying and feeding of the super-large H-shaped steel 100, the web plate 102 can cause the swing arm 722 to swing around the vertical axis (in the ω direction), and during this process, the rack body 721 can be moved in the front and rear directions (i.e., the V direction) by the engagement and matching of the gear part 7221 and the rack surface 7211. The detection unit 80 matches the free end of the pivot part 7212 arranged on one end side of the rack body 721, and can convert the movement status (stroke amount and direction) of the rack body 721 in the front and rear directions into a sensing signal. Because the pair of two swing arms 722 are arranged obliquely (relative to the left and right directions) and the extension directions can intersect, when the rollers 7222 on the pair of two swing arms 722 contact the web plate 102, the rotation directions of the two swing arms 722 are opposite, and the rollers 7222 on the two swing arms 722 will simultaneously move (rotate) towards the direction close to the upper edge of the frame body 61, i.e., rotate towards the side of the U-shaped body 711 or the pivot of the swing arm 722.

[0064] As the outer circumferential surface of the roller 62 gradually approaches the side of the web 102, the roller 7222 at the other end of the swing arm 722 first contacts the side of the web 102. As the roller 62 continues to approach the side of the web 102, the web 102 causes the swing arm 722 to rotate until the roller 62 contacts the side of the web 102. After this contact, the angle of rotation of the swing arm 722 in the ω direction remains within a certain range. During this period, the rack 721 moves a certain amount of stroke in the V direction towards a certain side. (See also...) Figure 5 At that time, the detection unit 80 will enter its initial state, meaning that the detection unit 80 does not need to detect the movement of the rack body 721 during the above process.

[0065] After the wheel surface of the roller 7222 and the outer peripheral surface of the roller shaft 62 are in contact with the side of the web plate 102, as the extra-large H-beam 100 is conveyed and fed, the swing arm 722 will swing irregularly (the rotation angle and direction are not regular), which can cause the rack body 721 to move in the front-back direction. When the amount of movement meets the expected offset (i.e., the degree of deviation meets the requirements), the change of the sensing signal of the detection unit 80 will not exceed the (one or more pre-set related) warning threshold parameters, and the control unit will not send an action command to the corresponding telescopic cylinder assembly 50; when excessive deviation occurs, at the diagonal position of the rectangle (which can be Figure 2 The sensing signals of the two detection units 80 installed on the frame body 61 at the two diagonal locations A and B (or two other diagonal locations) will change abruptly (such as distortion, significant fluctuations, jumps, etc.). The control unit can analyze and judge the direction (left or right) and degree (such as the size of the deflection angle) of the deviation based on the abrupt change, and send an action command to the associated telescopic cylinder assembly 50 to drive the cylinder rods of one or more telescopic cylinder assemblies 50 to extend or retract, thereby adjusting the conveying direction of the ultra-large H-type 100 and correcting the deviation.

[0066] In the technical solution of the present invention, the control unit needs to process the sensing signals fed back by each of the detection units 80 (convert them into one or more forms such as vibration signals, speed and acceleration signals), and make a comprehensive (analysis and comparison) judgment to determine the direction and degree of deviation, and issue relevant action commands.

[0067] like Figures 3 to 5As shown, a multi-stage through hole corresponding to and matching the pivot portion 7212 is formed on the upright arm of the U-shaped body 711, and a threaded countersunk hole is formed on the inner end side of the multi-stage through hole. A threaded ring 7213 is fitted on the pivot portion 7212, and one end of the threaded ring 7213 matches the threaded countersunk hole.

[0068] One end of the spring 7214 contacts the front or rear face of the rack body 721, and the other end contacts the other end face of the threaded ring 7213. Thus, by turning the threaded ring 7213, its position can be adjusted, thereby setting the initial compression level of the spring 7214.

[0069] The pivot portion 7212 can pass through the shaft hole of the screw ring 7213 and can move relative to the screw ring 7213 in the front-back direction. The pivot portion 7212 can contact the shaft hole of the screw ring 7213, that is, the outer peripheral surface of the pivot portion 7212 and the inner peripheral surface of the screw ring 7213 can both be circumferential surfaces and can contact each other; the outer diameter of the pivot portion 7212 can be smaller than the inner diameter of the screw ring 7213, and the two do not contact each other. In this case, the pivot portion 7212 is only guided by the multi-stage through hole. After the free end of the pivot portion 7212 extends outside the outer end side of the multi-stage through hole, it is matched with the detection unit 80.

[0070] The detection unit 80 includes a sensor body 81, a support base 82 fixed on the substrate 71, and a movable member 83 that matches one end of the disturbance mechanism 72. The sensor body 81 is disposed on the support base 82. The movable member 83 extends in the front-rear direction and extends into the sensor body 81. When the movable member 83 moves with the disturbance mechanism 72, it enables the sensor body 81 to generate a sensing signal.

[0071] Specifically, such as Figures 3 to 8 As shown, one end of the movable member 83 is fixed to the free end section of the pivot portion 7212 (extending beyond the upright arm of the U-shaped body 711). An end cap 831 is formed at this end of the movable member 83, allowing the free end of the pivot portion 7212 to be threadedly matched with the movable member 83, thus adjusting the specific location / position of the movable member 83 within the sensor body 81. When the movable member 83 moves left and right with the rack body 721, the sensor body 81 generates a sensing signal.

[0072] The sensor body 81 can be selected as a capacitive sensor body or a grating sensor body.

[0073] When a grating-type sensor is selected, a movable grating portion is provided on one end of the movable member 83 that extends into the sensor body 81, and the movable grating portion can correspond and match with the fixed grating portion of the grating-type sensor body.

[0074] When a capacitive sensor is selected, an intermediate dielectric plate 832 is provided on one end of the movable member 83 that extends into the sensor body 81, and the intermediate dielectric plate 832 can correspond and match with the two electrode plates 812 of the capacitive sensor body.

[0075] Figures 3 to 8 The sensor body 81 in the illustrated scheme is a capacitive sensor body. Two opposing, downwardly extending flanges 811 are formed on the lower part of the sensor body 81, and the two electrode plates 812 of the capacitive sensor body are respectively fixed to the two flanges 811. The main body of the capacitive sensor body is fixed to the upper part of the support base 82. The flanges 811 extend into an open space supported by the legs 821 of the support base 82, and this open space is continuous in the front-to-back direction. The movable member 83 (in the front-to-back direction) extends towards one side of the sensor body 81 and is formed as a trapezoidal plate, with the middle part of the trapezoidal plate extending between the two electrode plates 812. The front and rear ends of the trapezoidal plate have a portion of length corresponding to the outside of the electrode plates 812, as shown in the figure. Figure 6 .

[0076] Specifically, the trapezoidal plate portion includes a rectangular plate end 8321, and portions formed before and after the rectangular plate end 8321 (to... Figure 6 Viewed from the perspective of the diagram, the trapezoidal plate segment 8322 and trapezoidal plate segment 8323 are located on the left and right sides, respectively, with the shorter side of trapezoidal plate segment 8323 forming a free end. A first transition rectangular plate segment 8324 is formed between the rectangular plate end 8321 and the shorter side of trapezoidal plate segment 8322. A second transition rectangular plate segment 8325 is formed between the rectangular plate end 8321 and the longer side of trapezoidal plate segment 8323. The extension lengths of both the first and second transition rectangular plate segments 8324 and 8325 in the front-back direction are controlled to be between 1mm and 2mm. The length (dimension along the front-back direction) of the rectangular plate end 8321 is the same as or substantially the same as the length of the electrode plate 812, as shown in the diagram. Figures 6 to 8 As shown.

[0077] like Figures 6 to 8As shown, the width (dimension in vertical direction, same below) of the first transition rectangular plate segment 8324 is greater than the width of the rectangular plate end 8321 and less than the short side width of the trapezoidal plate segment one 8322; the width of the second transition rectangular plate segment 8325 is less than the width of the rectangular plate end 8321 and greater than the long side width of the trapezoidal plate segment two 8323.

[0078] By adjusting the screw thread fitting position between the end cap part 831 and the pivot part 7212, the specific part / position of the trapezoidal plate part corresponding between the electrode plates 812 is adjusted, so that the rectangular plate end 8321 on the trapezoidal plate part of the detection unit 80 in its initial state (i.e. the state when the outer circumferential surface of the roller shaft 62 and the wheel surface of the roller 7222 are both in contact with the side surface of the web 102, the initial state is described in detail above) corresponds between the electrode plates 812, the front and rear ends of the rectangular plate end 8321 are respectively aligned with the front and rear ends of the electrode plates 812, and the first transition rectangular plate segment 8324 and the second transition rectangular plate segment 8325 are relatively located outside the front and rear ends of the electrode plates 812.

[0079] In normal operation state, when the trapezoidal plate part on the movable part 83 moves (jumps back and forth) with the rack body 721 relative to the electrode plates 812, the first transition rectangular plate segment 8324 or the second transition rectangular plate segment 8325 will move to between the electrode plates 812, causing the detection unit 80 to produce a significant change in sensing signal, but the change at this time is linear, and during this period the running direction of the super large H-shaped steel 100 can be considered to meet the requirements; when the running direction of the super large H-shaped steel 100 is excessively deflected (deviated), the trapezoidal plate segment one 8322 or the trapezoidal plate segment two 8323 will have part of it moving to between the electrode plates 812, breaking the linear law of the sensing signal, and then the control unit analyzes and calculates to control the relevant telescopic cylinder assembly 50 to perform telescopic action, completing the correction of the deviation of the super large H-shaped steel 100.

[0080] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not intended to limit the present application. The present application can be improved in many aspects without departing from the general idea, and those skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical idea disclosed by the present application should be covered by the claims of the present application.

Claims

1. A super H-beam laser cutting machine comprising a conveying roller assembly (20) provided on a frame (10), the conveying roller assembly (20) moving in a front-rear direction; characterized in that: Further comprising a plurality of pairs of sliding seats (30), a screw drive assembly (40) matched with the sliding seat (30) one by one, a telescopic cylinder assembly (50) arranged on the upper part of each sliding seat (30), a roller frame unit (60) fixedly arranged at the cylinder rod end of each telescopic cylinder assembly (50), and a control unit connected with the conveying roller assembly (20), the screw drive assembly (40), and the telescopic cylinder assembly (50); The plurality of pairs of sliding seats (30) are arranged in front and back; the two sliding seats (30) in each pair are oppositely arranged on the left and right sides of the conveying roller assembly (20); the sliding seat (30) is matched with the rack (10) through the track structure arranged in the left and right directions; the screw drive assembly (40) is fixed on the rack (10) and can drive the sliding seat (30) matched therewith to move; The roller frame unit (60) comprises a frame body (61) fixedly connected with the cylinder rod end, and a plurality of roller shafts (62) pivotally matched with the frame body (61) and arranged in front and back; the roller shaft (62) is arranged in the vertical direction and the outer periphery away from the side of the telescopic cylinder assembly (50) is exposed outside the frame body (61); Further comprising four pairs of matched drive units (70) and detection units (80); the two drive units (70) and detection units (80) in each pair are arranged on the same frame body (61), and one pair of drive units (70) and detection units (80) are arranged on each of the left and right frame bodies (61); the four pairs of drive units (70) and detection units (80) are arranged on two pairs of frame bodies (61) that are not adjacent; The drive unit (70) comprises a base plate (71) fixedly connected with the frame body (61) and a disturbance mechanism (72); the two disturbance mechanisms (72) arranged on the same frame body (61) are arranged in front and back; One end of the disturbance mechanism (72) is arranged on the base plate (71) and matched with the detection unit (80) matched therewith, and the other end can keep in contact with the side surface of the web (102) of the super H-shaped steel (100); During the conveying and feeding process of the super H-shaped steel (100), the web (102) can make the disturbance mechanism (72) act, and can cause the detection unit (80) to generate a sensing signal; the control unit can process the sensing signal fed back by the detection unit (80), and can send an action instruction to the corresponding telescopic cylinder assembly (50).

2. The ultra-heavy H-beam laser cutting machine according to claim 1, characterized in that: The telescopic cylinder assembly (50) is a screw type electric cylinder assembly.

3. The laser cutting machine for super H-beam according to claim 1, characterized in that: A plurality of annular grooves vertically arranged are formed on the outer periphery of the roller shaft (62).

4. The laser cutting machine for super H-beam steel according to claim 1, characterized in that: Two U-shaped bodies (711) matched with the two disturbance mechanisms (72) respectively are formed on the base plate (71) in front and back; the disturbance mechanism (72) comprises a rack body (721) and a swing arm (722); The pivot shaft portions (7212) matched with the two upright arms of the U-shaped body (711) are formed on the front and rear ends of the rack body (7212), and the spring member (7214) is sleeved on the pivot shaft portion (7212); One end of the swing arm (722) is pivotally arranged on the base plate (71), and a gear portion (7221) capable of engaging with a rack surface (7211) on the rack body (721) is arranged on the pivot; the rack surface (7211) extends in the front-rear direction; the other end of the swing arm (722) extends outward relative to the frame body (61) and is pivotally arranged with a roller (7222); the wheel surface of the roller (7222) can contact the web plate (102); the extension directions of the other ends of the two swing arms (722) arranged on the same frame body (61) can intersect; The detection unit (80) matches the free end of the pivot portion (7212) arranged on one end side of the rack body (721), and can convert the movement condition of the rack body (721) in the front-rear direction into a sensing signal.

5. The laser cutting machine for super H-beam steel according to claim 4, characterized in that: A multi-stage through hole corresponding to the pivot portion (7212) is formed on the upright arm of the U-shaped body (711), and a threaded counterbore is formed at the inner end of the multi-stage through hole; a screw ring (7213) is sleeved on the pivot portion (7212), and one end of the screw ring (7213) matches the threaded counterbore; One end of the spring member (7214) contacts the front end surface or the rear end surface of the rack body (721), and the other end contacts the other end surface of the screw ring (7213); The pivot portion (7212) can pass through the shaft hole of the screw ring (7213) and can move in the front-rear direction relative to the screw ring (7213).

6. The laser cutting machine for super H-beam steel according to claim 4, characterized in that: The detection unit (80) includes a sensor body (81), a support seat (82) fixed on the base plate (71), and a movable member (83) fixing the free end of the pivot portion (7212); the sensor body (81) is arranged on the support seat (82); the movable member (83) extends in the front-rear direction and extends into the sensor body (81); when the movable member (83) moves with the rack body (721), the sensor body (81) can generate a sensing signal.

7. The heavy H-beam laser cutting machine according to claim 1, characterized in that: The detection unit (80) includes a sensor body (81), a support seat (82) fixed on the base plate (71), and a movable member (83) matching one end of the disturbance mechanism (72); the sensor body (81) is arranged on the support seat (82); the movable member (83) extends in the front-rear direction and extends into the sensor body (81); when the movable member (83) moves with the disturbance mechanism (72), the sensor body (81) can generate a sensing signal.

8. The laser cutting machine for super H-beams according to claim 6 or 7, characterized in that: The sensor body (81) is a capacitive sensor body or a grating sensor body; An intermediate medium plate or a dynamic grating portion is arranged on the end side of the movable member (83) extending into the sensor body (81), and the intermediate medium plate can correspondingly match the two electrode plates of the capacitive sensor body, and the dynamic grating portion can correspondingly match the fixed grating portion of the grating sensor body.

9. The laser cutting machine for super H-beams according to claim 8, characterized in that: The sensor body (81) is a capacitive sensor body; the lower part of the sensor body (81) is formed with two rim arms (811) opposite to each other and extending downward, and two electrode plates (812) of the capacitive sensor body are respectively fixed on the two rim arms (811); the movable element (83) extends to one side of the sensor body (81) and is formed as a trapezoidal plate part, and the plate body middle part of the trapezoidal plate part extends into the two electrode plates (812).

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