Plasma cutting device for wharf mechanical steel plate

Abstract

The invention discloses a plasma cutting device for a wharf mechanical steel plate, and relates to the technical field of plasma cutting, the plasma cutting device comprises a supporting header and a cutting unit, and the cutting unit comprises a cutting head transversely moving on the top surface of a supporting plate-shaped object. A plurality of supporting plate-shaped objects can independently move up and down, so that a foundation of a concession space is provided for movement of an isolation plate and a first inner sleeve bottom rod, and the upper surface and the lower surface of a steel plate are limited through a first guide wheel and a first-stage bottom supporting plate; the upper surface and the lower surface of the steel plate are limited by a plurality of second-stage pressing plates, guide wheels II, scraping blocks II and a second-stage bottom supporting plate, so that a cutting seam cut by a cutting head is supported and limited in sections, and the pulling of a large steel plate caused by the falling of a small steel bar which is gradually separated from the cutting process to the next half process is reduced; and the upper part, the lower part and the cutting surface of the steel plate are treated to be flat by combining with sequential treatment of a scraping block I, a separation plate, a first-stage grinding layer and a second-stage grinding layer.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plasma cutting, in particular to a plasma cutting device for port machinery steel plate. BACKGROUND

[0002] Plasma cutting technology is one of the core processes for port machinery steel plate processing. This technology forms tens of thousands of degrees of plasma arc through high-frequency arc ionization of gas, instantaneously melts the steel plate and blows away the slag, and the cutting speed can reach 3-5 times that of flame cutting. In the manufacturing of heavy equipment such as port cranes and gantry cranes, plasma cutting can precisely process thick steel plates.

[0003] Chinese patent CN110181155A discloses a plasma cutting device, which comprises a support frame, a driving assembly, a driven assembly and a passive assembly are arranged on the support frame; the driving assembly drives the driven assembly to rotate synchronously, and the driven assembly is provided with a plasma cutting head at the bottom; the driving assembly drives the passive assembly to rotate intermittently, and the passive assembly is provided with a rope, which is connected to the top of the plasma cutting head after passing through the driven assembly.

[0004] Chinese patent CN107052546A discloses a plasma cutting platform, which comprises a water tank for containing water, a grid placed above the water tank, and an air suction duct arranged on one side of the water tank. The grid comprises a plurality of mutually spaced support plates, which are arranged vertically to the water surface in the water tank. The water surface is below the lower surface of the support plates and above the upper surface of the support plates. The air suction duct is in communication with the gap between the adjacent two support plates. The adjacent two support plates and the water surface form a closed space, and the air suction duct sucks the smoke and dust from the closed space, so that the smoke and dust generated during cutting operation cannot move around, thereby achieving good smoke removal effect.

[0005] The above-mentioned patents and prior art have the following problems: When the steel plate is plasma cut, if a narrower steel strip needs to be cut from the edge of the steel plate, and the width of the steel strip is less than the gap between the plate-shaped support pieces of the cutting platform, it cannot be effectively supported during the cutting process. Then, when the cutting proceeds to a certain extent, the partially separated steel strip will start to fall due to its own gravity, and will generate a pulling force on the part between the mother plate and the steel strip that has not been cut off. The pulling of the falling steel strip will cause the cutting path to deviate, the cut will be uneven and the size will be inaccurate, and even a tear will be formed at the end instead of a smooth cut. The movement of the steel strip may cause the distance between the torch and the steel plate to change, affecting the stability of the plasma cutting. SUMMARY

[0006] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: A plasma cutting device for dock machinery steel plates, comprising: A support cutting platform, comprising a support column and a plurality of support plates arranged on the inner side of the support column and movable up and down, wherein the support plates are elastically connected to the middle platform through elastic support members at the bottom thereof; The cutting unit includes a cutting head that moves laterally on the top surface of the supporting plate-like object, a sleeve plate 1 that moves synchronously with the cutting head is provided on the side of the cutting head, a first-level lifting rod and a first-level lowering rod that move in opposite directions are provided inside the sleeve plate 1, a guide wheel 1 and a scraping block 1 are provided at the bottom of the first-level lowering rod, the first-level lifting rod is connected to the first-level bottom support plate through an inner sleeve bottom rod 1 at its bottom, a scraper head is installed on the side of the first-level bottom support plate, and an isolation plate for receiving slag is provided at the bottom of the first-level bottom support plate. Several sleeve plates 2 are sequentially arranged on the side of the sleeve plate 1, and a secondary lifting rod and a secondary lowering rod that move in opposite directions are arranged inside the sleeve plate 2. A guide wheel 2 and a scraping block 2 are arranged at the bottom of the secondary lowering rod. The secondary lifting rod is connected to the secondary bottom support plate through the inner sleeve bottom rod 3 at its bottom. The inner sleeve bottom rod 1 and the inner sleeve bottom rod 3 at the bottom of several secondary lifting rods are sequentially clamped into the inside of the cutting seam, so that the guide wheel 1 and the guide wheel 2 and the first and second bottom support plates can flexibly constrain the upper and lower surfaces of the steel plates on the side of the cutting seam.

[0008] As a preferred embodiment of the plasma cutting device for steel plates used in dock machinery of the present invention, the middle portion of the support column is fixedly connected to a middle platform, and the support plate-like object is fixedly connected to a circular plate after a movable rod at its outer bottom end moves through the middle platform; The side of the support plate is fixedly connected to the bottom of the folding rod, and the top of the folding rod is fixedly connected to a rolling wheel; A trigger block is provided on the side of the rolling wheel. The front and rear sides of the trigger block are provided with arc sections. The bottom of the arc section is connected to a pressing section, and the pressing section is a plane.

[0009] As a preferred embodiment of the plasma cutting device for steel plates used in dock machinery of the present invention, the cutting head is mounted on the surface of a movable plate, the back surface of the movable plate is movably connected to a slide rail on the surface of a transverse plate via a slider, and the transverse plate is movably arranged on the top surface of the supporting plate-like object; The top of the transverse plate is provided with two up-down pushing sources, and the output shafts of the two up-down pushing sources are fixedly connected to the top surface of the movable plate and the track plate respectively.

[0010] As a preferred scheme of the port machinery steel plate plasma cutting device, the inner surface of the track plate is provided with a moving clamping groove, the inner surface of the moving clamping groove is sequentially provided with a first descending rod and a plurality of second descending rods, and the inner surface of the moving clamping groove is movably clamped with the protruding strips on the top side of the first descending rod and the second descending rods. The side of the sleeve plate one is fixedly connected with the side of the movable plate.

[0011] As a preferred scheme of the port machinery steel plate plasma cutting device, the first lifting rod and the first descending rod are movably clamped through the vertical outer groove one and the clamping strip one on the surface thereof, the surface of the clamping strip one is fixedly connected with the inner wall of the sleeve plate one, the inner wall surface of the sleeve plate one is rotatably connected with a transmission wheel one, the opposite surfaces of the first lifting rod and the first descending rod are fixedly connected with toothed plates, and the toothed plate on the surface of the first lifting rod is movably engaged with the toothed plate on the surface of the first descending rod through the transmission wheel one. The inner part of the first lifting rod movably sleeves an inner sleeve bottom rod one, and the inner part of the first descending rod movably sleeves an inner sleeve bottom rod two.

[0012] As a preferred scheme of the port machinery steel plate plasma cutting device, the side of the inner sleeve bottom rod one is fixedly connected with a first polishing layer, the projection of the bottom of the cutting head is located on the surface of the isolation plate, the first descending rod is fixedly connected through the inner sleeve bottom rod two and a clamping plate one, and the bottom of the clamping plate one is fixedly connected with a wiping block one. The side of the clamping plate one is fixedly connected with a first pressing plate, the first pressing plate is movably arranged on the surface of the first polishing layer through the clamping hole on the side thereof, and the bottom of the first pressing plate is fixedly connected with a guide wheel one.

[0013] As a preferred scheme of the port machinery steel plate plasma cutting device, the inner part of the sleeve plate two is rotatably connected with a transmission wheel two, the surfaces of the second lifting rod and the second descending rod are respectively provided with a vertical outer groove two and a vertical outer groove three, the inner parts of the vertical outer groove two and the vertical outer groove three are movably clamped with a clamping strip two, the clamping strip two is fixedly connected with the inner wall of the sleeve plate two, and the toothed plate on the side of the second lifting rod is movably engaged with the toothed plate on the side of the second descending rod through the transmission wheel two. The inner movable sleeve of the secondary lifting rod is provided with an inner sleeve bottom rod three, the surface of the inner sleeve bottom rod three is mounted with a secondary polishing layer, the inner movable sleeve of the secondary descending rod is connected with an inner sleeve bottom rod four, the bottom of the inner sleeve bottom rod four is fixedly connected with a clamping plate two, the bottom of the clamping plate two is fixedly connected with a scraping block two, the side of the clamping plate two is fixedly connected with a secondary downward plate, the secondary downward plate is movably connected to the surface of the secondary polishing layer, and the bottom of the secondary downward plate is fixedly connected with a guide wheel two.

[0014] As a preferred scheme of the wharf machinery steel plate plasma cutting device, the surface of the sleeve plate one is symmetrically mounted with a driving support plate, the surface of the driving support plate is mounted with a linkage wheel one, the linkage wheel one is movably connected to the surface of the horizontal moving track, the surface of the sleeve plate two is symmetrically mounted with a driven support plate, the surface of the driven support plate is mounted with a linkage wheel two, and the linkage wheel two is movably connected to the surface of the horizontal moving track. The surface of the driving support plate and the driven support plate is mounted with a winding cavity, the winding cavity is movably connected with the rotating disc through the rotating shaft in the center, the surface of the rotating disc is wound with a stretching rope, and the driving support plate and the driven support plate and the adjacent driven support plates are connected through the stretching rope.

[0015] As a preferred scheme of the wharf machinery steel plate plasma cutting device, the surface of the horizontal moving plate is mounted with a horizontal moving driving source, the surface of the horizontal moving plate is mounted with a horizontal moving wheel, and the belt pulley on the output shaft surface of the horizontal moving driving source is drivingly connected with the belt pulley on the center rotating shaft surface of the horizontal moving wheel through the transmission member two. The side of the support column is movably provided with a horizontal moving track, the number of the horizontal moving tracks is two, the left and right sides of one of the horizontal moving tracks are mounted with driving plates, and the left and right sides of the other horizontal moving track are mounted with driven plates.

[0016] As a preferred scheme of the wharf machinery steel plate plasma cutting device, the surface of the driving plate is mounted with an advancing driving source, the surface of the driving plate is mounted with an advancing wheel, the belt pulley on the output shaft surface of the advancing driving source is drivingly connected with the belt pulley on the center shaft of the advancing wheel through the transmission member one, the surface of the driven plate is mounted with a driven wheel, the advancing wheel and the driven wheel are movably connected with the surface of the advancing track, the bottom of the driving plate and the driven plate is fixedly connected with a trigger block, the surface of the driving plate and the driven plate is movably connected with a moving plate, and the moving plate is fixedly connected with the side of the track plate.

[0017] The beneficial effects of the present application are that the plurality of support plates can move up and down independently, thereby providing a basis for the movement of the isolation plate and the bottom rod one of the inner sleeve, and the upper and lower surfaces of the steel plate are limited by the guide wheel one and the first bottom support plate, and the upper and lower surfaces of the steel plate are limited by the plurality of second-level downward pressing plates, the guide wheel two, and the scraping block two and the second-level bottom support plate, so that the cutting seam after the cutting head cuts is segmented and supported and limited, reducing the pulling of the small steel bars on the large steel plate as the cutting progresses to the second half, especially when cutting small steel bars on the surface of the steel plate, the situation that the uncut cutting seam is pulled down due to the lack of support of the support plate, and the sequential processing of the scraping block one, the isolation plate, and the first and second polishing layers, so that the upper and lower parts of the steel plate cutting surface and the cutting surface are processed flat. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows: Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the overall structure of the present application; Figure 1 It is a schematic diagram of the enlarged structure of part A in the figure; Figure 3 It is a schematic diagram of the overall structure of the present application; Figure 4 It is a schematic diagram of the overall structure of the present application; Figure 1 It is a schematic diagram of the enlarged structure of part B in the figure; Figure 5 It is a schematic diagram of the overall structure of the present application; Figure 6 It is a schematic diagram of the overall structure of the present application; Figure 7 It is a schematic diagram of the overall structure of the present application; Figure 6 It is a schematic diagram of the enlarged structure of part C in the figure; Figure 8 It is a schematic diagram of the overall structure of the present application; Figure 9 It is a schematic diagram of the overall structure of the present application; Figure 8 It is a schematic diagram of the enlarged structure of part D in the figure, at this time the side of the track plate is opened; Figure 10 It is a schematic diagram of the overall structure of the present application; Figure 11 It is a schematic diagram of the overall structure of the present application; Figure 10 It is a schematic diagram of the enlarged structure of part E in the figure; Figure 12 It is a schematic diagram of the overall structure of the present application;

[0019] In the figure: 1. Supporting cutting platform; 101. Support column; 102. Middle platform; 103. Forward track; 104. Movable rod; 1041. Elastic support member; 1042. Support plate; 1043. Folding rod; 1044. Rolling wheel; 1045. Circular plate; 2. Cutting unit; 201. Active plate; 2011. Forward drive source; 2012. Forward wheel; 2013. Transmission member 1; 2014. Moving plate; 2015. Track plate; 20151. Moving slot; 202. Driven plate; 2021. Driven wheel; 203. Trigger block; 2031. Arc section; 2032. Pressing section; 204. Transverse track; 205. Transverse plate; 2051. Transverse drive source; 2052. Movable plate; 20521, cutting head; 2053, transverse wheel; 2054, transmission component 2; 2055, upper and lower driving source; 206, active support plate; 2061, linkage wheel 1; 2062, sleeve plate 1; 20621, clamping strip 1; 20622, transmission wheel 1; 2063, first-level lifting rod; 20631, inner sleeve bottom rod 1; 20632, first-level grinding layer; 20633, first-level bottom support plate; 20634, isolation plate ; 20635, scraper head; 2064, first-stage descending rod; 20641, inner sleeve bottom rod 2; 20642, clamping plate 1; 20643, bayonet; 20644, first-stage lower pressure plate; 20645, guide wheel 1; 20646, scraping block 1; 20647, vertical outer groove 1; 207, driven support plate; 2071, linkage wheel 2; 2072, sleeve plate 2; 20721, clamping strip 2; 20722, transmission wheel 2; 20 73. Secondary lifting rod; 20731. Secondary vertical outer groove; 20732. Third inner sleeve bottom rod; 20733. Secondary polishing layer; 20734. Secondary bottom support plate; 2074. Secondary lowering rod; 20741. Third vertical outer groove; 20742. Fourth inner sleeve bottom rod; 20743. Second clamping plate; 20744. Second scraping block; 20745. Secondary lower pressure plate; 20746. Second guide wheel; 208. Winding chamber; 2081. Stretch rope. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0021] Example: This example Figures 1-12 As shown, a plasma cutting device for dock mechanical steel plates comprises: Supporting cutterbar 1, which comprises support column 101 and several support plate-like objects 1042 movably arranged on the inside of support column 101, the support plate-like objects 1042 being elastically connected through the elastic support 1041 at the bottom thereof and middle platform 102; Cutting unit 2, which comprises cutting head 20521 movably arranged on the top surface of support plate-like object 1042, the side of cutting head 20521 being provided with sleeve plate one 2062 moving synchronously therewith, the inside of sleeve plate one 2062 being provided with oppositely moving first lifting rod 2063 and first lowering rod 2064, the bottom of first lowering rod 2064 being provided with guide wheel one 20645 and scraping block one 20646, first lifting rod 2063 being connected through inner sleeve bottom rod one 20631 at the bottom thereof and first bottom support plate 20633, the side of first bottom support plate 20633 being provided with spade head 20635, the bottom of first bottom support plate 20633 being provided with isolation plate 20634 for receiving molten slag, the side of sleeve plate one 2062 being sequentially provided with several sleeve plate twos 2072, the inside of sleeve plate two 2072 being provided with oppositely moving second lifting rod 2073 and second lowering rod 2074, the bottom of second lowering rod 2074 being provided with guide wheel two 20746 and scraping block two 20744, second lifting rod 2073 being connected through inner sleeve bottom rod three 20732 at the bottom thereof and second bottom support plate 20734, inner sleeve bottom rod one 20631 and inner sleeve bottom rod three 20732 at the bottom of several second lifting rods 2073 being sequentially clamped in the inside of cutting gap, so that guide wheel one 20645 and guide wheel two 20746 movably constrain the upper and lower surfaces of the side plate of cutting gap together with first bottom support plate 20633 and second bottom support plate 20734.

[0022] As shown in Figures 1-3 The middle part of support column 101 is fixedly connected with middle platform 102, and support plate-like object 1042 is fixedly connected with round plate 1045 after being movably arranged through movable rod 104 at the bottom of the outside thereof and passing through middle platform 102; The side of support plate-like object 1042 is fixedly connected with the bottom of folding rod 1043, the top of folding rod 1043 is fixedly connected with rolling wheel 1044, and elastic support 1041 is preferably spring or damping spring or air spring connected through valve and pressure sensor detection control.

[0023] The side of rolling wheel 1044 is provided with trigger block 203, the front and back sides of trigger block 203 are provided with arc segment 2031, the bottom of arc segment 2031 is connected with depression segment 2032, and depression segment 2032 is flat surface.

[0024] As shown in Figures 4-6As shown, the cutting head 20521 is mounted on the surface of the movable plate 2052, the back surface of the movable plate 2052 is movably connected with the slide rail on the surface of the horizontal moving plate 205 through a sliding block, and the horizontal moving plate 205 is movably arranged on the top surface of the support plate 1042; The top of the horizontal moving plate 205 is provided with two up-down pushing sources 2055, the output shafts of the two up-down pushing sources 2055 are fixedly connected with the top surfaces of the movable plate 2052 and the rail plate 2015 respectively, so that the movable plate 2052 and the rail plate 2015 can move up and down, and the up-down pushing source 2055 is preferably composed of a pneumatic cylinder or an electric telescopic cylinder and is controlled by a PLC, an encoder and a position switch / micro switch.

[0025] As shown in Figures 8-9 and Figure 11 As shown, the inner surface of the rail plate 2015 is provided with a moving clamping groove 20151, the inside of the moving clamping groove 20151 is sequentially provided with a first descending rod 2064 and a plurality of second descending rods 2074, and the inner surface of the moving clamping groove 20151 is movably clamped with the protruding strips on the top side of the first descending rod 2064 and the second descending rods 2074. The side of the sleeve plate one 2062 is fixedly connected with the side of the movable plate 2052.

[0026] As shown in Figures 8-12 As shown, the first lifting rod 2063 and the first descending rod 2064 are movably clamped through the vertical outer groove one 20647 and the clamping strip one 20621 on the surface thereof, the surface of the clamping strip one 20621 is fixedly connected with the inner wall of the sleeve plate one 2062, the inner wall surface of the sleeve plate one 2062 is rotatably connected with a transmission wheel one 20622, the opposite surfaces of the first lifting rod 2063 and the first descending rod 2064 are fixedly connected with toothed plates, and the toothed plate on the surface of the first lifting rod 2063 is movably engaged with the toothed plate on the surface of the first descending rod 2064 through the transmission wheel one 20622. The inside of the first lifting rod 2063 movably sleeves an inner sleeve bottom rod one 20631, the inside of the first descending rod 2064 movably sleeves an inner sleeve bottom rod two 20641, the first descending rod 2064 is clamped with the inner sleeve bottom rod two 20641 through the surface bolts thereof, so that the inner sleeve bottom rod two 20641 can be fixed through bolts after adjusting the position of the bottom of the first descending rod 2064, and the first lifting rod 2063 is clamped with the inner sleeve bottom rod one 20631 through the surface bolts thereof, so that the inner sleeve bottom rod one 20631 can be fixed through bolts after adjusting the position of the bottom of the first lifting rod 2063.

[0027] As shown in Figures 8-12As shown, the side of the inner sleeve bottom rod one 20631 is fixedly connected with a first polishing layer 20632, the projection of the bottom of the cutting head 20521 is located on the surface of the isolation plate 20634, the first descending rod 2064 is fixedly connected through the inner sleeve bottom rod two 20641 and the clamping plate one 20642, the bottom of the clamping plate one 20642 is fixedly connected with a scraping block one 20646; As shown, the side of the clamping plate one 20642 is fixedly connected with a first pressing plate 20644, the first pressing plate 20644 is movably arranged on the surface of the first polishing layer 20632 through the clamping hole 20643 on the side of the first pressing plate 20644, so that the first pressing plate 20644 can also clean the surface of the first polishing layer 20632 through the clamping hole 20643, the bottom of the first pressing plate 20644 is fixedly connected with a guide wheel one 20645, and the cutting head 20521 is composed of a power supply, a plasma generator, a cutting torch / cutting gun, a gas circuit / water cooling device and a PLC controller.

[0028] As shown, Figures 8-12 As shown, the inside of the sleeve plate two 2072 is rotatably installed with a transmission wheel two 20722, the surfaces of the second lifting rod 2073 and the second descending rod 2074 are respectively installed with a vertical outer groove two 20731 and a vertical outer groove three 20741, the interiors of the vertical outer groove two 20731 and the vertical outer groove three 20741 are movably clamped with a clamping strip two 20721, the clamping strip two 20721 is fixedly connected to the inner wall of the sleeve plate two 2072, the side of the toothed plate of the second lifting rod 2073 is movably engaged with the toothed plate on the side of the second descending rod 2074 through the transmission wheel two 20722, and the transmission wheel one 20622 and the transmission wheel two 20722 are preferably transmission gears; The inside of the second lifting rod 2073 movably sleeves the inner sleeve bottom rod three 20732, the surface of the inner sleeve bottom rod three 20732 is installed with a second polishing layer 20733, the inside of the second descending rod 2074 movably sleeves the inner sleeve bottom rod four 20742, the bottom of the inner sleeve bottom rod four 20742 is fixedly connected with a clamping plate two 20743, the bottom of the clamping plate two 20743 is fixedly connected with a scraping block two 20744, the side of the clamping plate two 20743 is fixedly connected with a second pressing plate 20745, the second pressing plate 20745 is movably clamped on the surface of the second polishing layer 20733, the bottom of the second pressing plate 20745 is fixedly connected with a guide wheel two 20746, the first polishing layer 20632 and the second polishing layer 20733 are preferably file surfaces, i.e., file teeth, and the second descending rod 2074 and the inner sleeve bottom rod four 20742 are also fixed through the bolts on the surface of the second descending rod 2074 to fix the up-down position of the inner sleeve bottom rod four 20742, and the second lifting rod 2073 and the inner sleeve bottom rod three 20732 are also fixed through the bolts on the surface of the second lifting rod 2073.

[0029] As Figures 4-6 and Figure 12 As shown in the drawings, the surface of the sleeve plate one 2062 is symmetrically provided with a driving support moving plate 206, the surface of the driving support moving plate 206 is provided with a linkage wheel one 2061, the linkage wheel one 2061 is movably connected to the surface of the horizontal moving track 204, and the number of the linkage wheel one 2061 is preferably three and is movably clamped on the surface of the horizontal moving track 204 in an inverted triangle shape, the surface of the sleeve plate two 2072 is symmetrically provided with a driven support moving plate 207, the surface of the driven support moving plate 207 is provided with a linkage wheel two 2071, the linkage wheel two 2071 is movably connected to the surface of the horizontal moving track 204, and the number of the linkage wheel two 2071 is preferably three and is movably clamped on the surface of the horizontal moving track 204 in an inverted triangle shape; The surface of the driving support moving plate 206 and the driven support moving plate 207 is provided with a winding cavity 208, the inside of the winding cavity 208 is movably connected with a rotating shaft through the center of the winding cavity 208, the surface of the rotating disc is wound with a stretching rope 2081, the driving support moving plate 206 and the driven support moving plate 207 and the adjacent driven support moving plate 207 are connected through the stretching rope 2081, that is, the stretching rope 2081 inside the winding cavity 208 on the surface of the driving support moving plate 206 is connected to the side of the winding cavity 208 on the surface of the driven support moving plate 207 adjacent to it, and the adjacent driven support moving plate 207 is fixedly connected with the other driven support moving plate 207 through the stretching rope 2081 inside the winding cavity 208 on the surface of the driven support moving plate 207 adjacent to the driving support moving plate 206.

[0030] Preferably, the rotating disc is provided with a spiral spring between the rotating shafts in the center of the winding cavity 208, so that when the stretching rope 2081 is pulled out of the winding cavity 208, the rotating disc is driven to rotate by the stretching rope 2081, the spiral spring is pulled, and when the stretching rope 2081 is released, the spiral spring can drive the rotating disc to rotate again so that the stretching rope 2081 is wound on the surface of the rotating disc again.

[0031] The surface of the horizontal moving plate 205 is provided with a horizontal moving driving source 2051, the surface of the horizontal moving plate 205 is provided with a horizontal moving wheel 2053, and the belt pulley on the output shaft surface of the horizontal moving driving source 2051 is drivingly connected with the belt pulley on the center rotating shaft surface of the horizontal moving wheel 2053 through a transmission member two 2054; The side of the support column 101 is movably provided with a transverse moving track 204, the number of the transverse moving track 204 is two, the left and right sides of one of the transverse moving track 204 are provided with a driving plate 201, the left and right sides of the other of the transverse moving track 204 are provided with a driven plate 202, the surface symmetry two winding cavities 208 inside the stretching rope 2081 of the driven support plate 207 close to the driving plate 201 and the driven plate 202 are respectively fixedly connected with the driving plate 201 and the driven plate 202, the transmission member one 2013 and the transmission member two 2054 are preferably belts.

[0032] The surface of the driving plate 201 is provided with an advancing drive source 2011, the surface of the driving plate 201 is provided with an advancing wheel 2012, the pulley on the output shaft surface of the advancing drive source 2011 is drivingly connected with the pulley on the central shaft of the advancing wheel 2012 through the transmission member one 2013, the surface of the driven plate 202 is provided with a driven wheel 2021, the advancing wheel 2012 and the driven wheel 2021 are movably connected with the surface of the advancing track 103, the bottom of the driving plate 201 and the driven plate 202 is fixedly connected with a trigger block 203, the surface of the driving plate 201 and the driven plate 202 is movably connected with a moving plate 2014, the moving plate 2014 is fixedly connected with the side of a track plate 2015.

[0033] The advancing drive source 2011 and the transverse moving drive source 2051 are preferably servo motors, and are controlled by PLC and encoders.

[0034] Operation process: By placing the steel plate to be cut on the surface of the support plate 1042, the support plate 1042 supports the steel plate, and then the advancing drive source 2011 is started, the pulley on the output shaft surface of the advancing drive source 2011 drives the pulley on the side of the advancing wheel 2012 to rotate through the transmission member one 2013, the advancing wheel 2012 rotates, and then the advancing wheel 2012 moves on the surface of the advancing track 103, after the advancing wheel 2012 drives the transverse moving track 204 to move to the preset cutting position through the advancing track 103, the transverse moving drive source 2051 is started, the pulley on the surface of the transverse moving wheel 2053 is driven to rotate through the transmission member two 2054, the pulley on the surface of the transverse moving wheel 2053 drives the transverse moving wheel 2053 to move on the surface of the transverse moving track 204, when the transverse moving plate 205 moves on the surface of the transverse moving track 204 driven by the transverse moving wheel 2053, the cutting head 20521 on the surface of the transverse moving plate 205 is started, the cutting head 20521 sprays high-temperature plasma arc, so that the cutting head 20521 cuts the steel plate; When the steel plate is placed on the surface of the plurality of support plate-like objects 1042, the steel plate will press down the support plate-like objects 1042 to move downward, so that the plurality of support plate-like objects 1042 are supported by the elastic supports 1041 at the bottom of each support plate-like object 1042, and the support plate-like objects 1042 can be closely attached to different positions of the steel plate. Especially when the steel plate itself is uneven, the elastic supports 1041 push the support plate-like objects 1042 to attach to the uneven surface of the steel plate, thereby reducing the part of the plate hanging or warping before cutting. In order to make the supporting force of the plurality of support plate-like objects 1042 consistent, the elastic supports 1041 at the bottom of the support plate-like objects 1042 are selected to be springs of uniform specification or springs with dampers, or the elastic supports 1041 are selected to be air springs. The air springs at the bottom of the support plate-like objects 1042 are externally connected to independent air tubes, and the electromagnetic valves and pressure sensors are arranged between the air tubes and the air springs. The external air tube is detected by the pressure sensor, and when each air spring pushes the support plate-like object 1042 at the top to contact the steel plate, the internal pressure is the same, or the pressure sensor is installed on the contact surface between the support plate-like object 1042 and the steel plate, so that the contact pressure of the support plate-like object 1042 and the steel plate is consistent. When it is insufficient or excessive, the air inside the air spring is filled or extracted through the air tube. When the air pressure adjustment is completed, the electromagnetic valve between the air tube and the air spring is closed, so that the support plate-like object 1042 can stably support the steel plate, and the plurality of support plate-like objects 1042 can independently move up and down, thereby providing a retreat space for the movement of the isolation plate 20634 and the inner sleeve bottom rod 20631.

[0035] When the forward driving source 2011 drives the forward wheel 2012 to move on the surface of the forward track 103, it will drive the trigger block 203 to contact the rolling wheel 1044. Then, when the arc segment 2031 at the front end of the trigger block 203 gradually contacts the rolling wheel 1044, the rolling wheel 1044 moves along the arc segment 2031 to the bottom of the pressing segment 2032, so that the rolling wheel 1044, the folding rod 1043 and the support plate-like object 1042 are pushed downward by the height of the arc segment 2031 descending along the pressing segment 2032. When the cutting head 20521 on the surface of the transverse plate 205 is driven by the forward wheel 2012 to move to the preset position, the trigger block 203 on the side of the transverse track 204 has previously pressed the support plate-like object 1042 corresponding to the bottom of the transverse track 204 when the transverse plate 205 moves in front of the support plate-like object 1042, so that the space at the bottom of the support plate-like object 1042 is withdrawn, thereby creating a moving space for the subsequent cutting head 20521 to drive the driving support plate 206 and the driven support plate 207 to move on the top of the support plate-like object 1042 through the transverse plate 205.

[0036] It should be noted that the connection position of the front end arc segment 2031 and the pressing segment 2032 of the trigger block 203 is arranged at the front end of the side of the advancing direction of the isolation plate 20634 and the secondary bottom support plate 20734, that is, the connection position of the front end arc segment 2031 and the pressing segment 2032 of the trigger block 203 will contact the rolling wheel 1044 on the side of the support plate-shaped object 1042 before the preset position bottom, and after the rolling wheel 1044 drives the support plate-shaped object 1042 to be pressed and maintained in the pressing segment 2032, the isolation plate 20634 and the secondary bottom support plate 20734 will be moved to the preset position with the advancing wheel 2012. It should be noted that by designing a unified elastic support 1041 which is preferably a spring, after the plate pressing support plate-shaped object 1042, the rolling wheel 1044 corresponds to the arc segment 2031. Of course, when the elastic support 1041 is preferably an air pipe, a valve and an air spring controlled by a pressure sensor, the independent air spring can maintain the height of the support plate-shaped object 1042 relatively consistent under the condition that the valve is inflated and the pressure is detected, so that the rolling wheel 1044 corresponds to the height of the arc segment 2031, thereby facilitating the arc segment 2031 to move and extrude to push the rolling wheel 1044, the folding rod 1043 and the support plate-shaped object 1042 to move downward. When the trigger block 203 gradually moves away from the pressed support plate-shaped object 1042, the elastic support 1041 restores to drive the support plate-shaped object 1042 to reset, so that the rolling wheel 1044 on the top of the support plate-shaped object 1042 lifts and resets along the arc segment 2031 on the other side.

[0037] When the support plate 1042 at the bottom of the transverse plate 205 is pressed down, the transverse drive source 2051 is started, and the transverse drive source 2051 drives the transverse plate 205 to move horizontally on the top of the steel plate through the transverse wheel 2053, so that the cutting head 20521 at the side of the transverse plate 205 cuts the steel plate. Before the cutting head 20521 cuts, the isolation plate 20634 is partially located at the bottom of the steel plate, and the inner sleeve bottom rod one 20631 and the first polishing layer 20632 are also located outside the steel plate. At this time, the inner sleeve bottom rod one 20631 and the cutting seam cut by the cutting head 20521 are collinear, and then with the movement of the cutting head 20521, the movable plate 2052 will pull the sleeve plate one 2062, so that the sleeve plate one 2062 drives the first lifting rod 2063 and the first descending rod 2064 to move through the clamping strip one 20621, so that the first descending rod 2064 moves inside the moving clamping groove 20151 through the top protrusion, and the movement of the sleeve plate one 2062 will also pull the top to move on the top of the transverse rail 204 through the active support moving plate 206 and the linkage wheel one 2061. With the movement of the transverse plate 205, the inner sleeve bottom rod one 20631 and the first polishing layer 20632 which are narrower than the width of the cutting seam will be inserted into the inside of the cutting seam, that is, the width of the inner sleeve bottom rod one 20631 and the first polishing layer 20632 is narrower than the width of the cutting seam, and with the cutting movement of the cutting head 20521 on the surface of the transverse plate 205, the isolation plate 20634 is always located at the bottom of the cutting head 20521. At this time, the support plate 1042 at the bottom of the isolation plate 20634 has completed the descent, which facilitates the movement of the isolation plate 20634, so that the molten slag generated by the cutting of the cutting head 20521 will fall into the inside of the isolation plate 20634, thereby reducing the molten slag generated by the cutting falling into the inside of the support plate 1042 and the support cutting table 1, thereby improving the cutting cleanliness of the equipment and reducing the problem of slag hanging on the surface of the equipment affecting the service life of the equipment.

[0038] When the cutting head 20521 cuts to form a cutting seam, the movement of the cutting head 20521 will cause the inner sleeve bottom rod one 20631 and the first polishing layer 20632 to be inserted into the cutting seam, so that the inner sleeve bottom rod one 20631 and the first polishing layer 20632 are located inside the cutting seam to reduce the collapse of the plate on both sides of the cutting seam into the cutting seam, thereby deforming the cutting seam by pulling force, thereby affecting the part of the cutting seam that has not been cut by the cutting head 20521, causing the surface of the part to be cut to form a rough surface. When the inner sleeve bottom rod one 20631 and the first polishing layer 20632 are inserted into the cutting seam, the up-and-down pushing source 2055 at the top of the track plate 2015 is started, causing the up-and-down pushing source 2055 to push the track plate 2015, the first descending rod 2064, and the second descending rod 2074 downward. When the first descending rod 2064 moves downward, the teeth on the side of the first descending rod 2064 will cause the transmission wheel one 20622 to rotate, causing the teeth on the surface of the first lifting rod 2063 to move upward when the transmission wheel one 20622 rotates. This causes the first descending rod 2064 to move downward and the first lifting rod 2063 to move upward, i.e., the first descending rod 2064 and the first lifting rod 2063 move inward. The downward movement of the second descending rod 2074 will also cause the transmission wheel two 20722 to rotate through the teeth on the side of the second descending rod 2074, and through the transmission of the transmission wheel two 20722, the second lifting rod 2073 and the teeth on the surface of the second lifting rod 2073 will move downward synchronously, thereby causing the second descending rod 2074 and the second lifting rod 2073 to move in opposite directions. In the opposite movement of the first lifting rod 2063 and the first lowering rod 2064, the bottom of the first lifting rod 2063 is attached to the two sides of the bottom of the steel plate cutting seam through the first bottom support plate 20633 connected by the inner sleeve bottom rod one 20631, so that the first bottom support plate 20633 supports the steel plate on both sides of the cutting seam, and the upward movement of the first lifting rod 2063 also synchronously moves the first lowering rod 2064 downward, so that the inner sleeve bottom rod two 20641 and the clamping plate one 20642 at the bottom of the first lowering rod 2064 are synchronously moved downward, and the clamping plate one 20642 moves downward along the inner sleeve bottom rod one 20631 and the surface of the first polishing layer 20632 through the bayonet 20643, so that the guide wheel one 20645 at the bottom of the first pressing plate 20644 abuts against the surface of the steel plate, and the wiping block one 20646 contacts the edge of the weld seam of the steel plate, and after the guide wheel one 20645 and the first bottom support plate 20633 contact the top and bottom of the steel plate respectively, the upper and lower sides of the steel plate are limited, reducing the outward expansion and falling of the steel plate, thereby reducing the pulling of the falling steel bar on the cutting seam, thereby reducing the unevenness of the surface of the subsequent cutting seam caused by the additional pulling force, and with the opposite movement of the first lowering rod 2064 and the first lifting rod 2063, the wiping block one 20646 abuts against the top surface of the steel plate, and the spade head 20635 abuts against the bottom surface of the steel plate, so that the top surface of the steel plate is scraped by the wiping block one 20646 during the movement of the first lifting rod 2063 and the first lowering rod 2064 with the cutting head 20521, reducing the adhesion of the molten slag splashed during cutting on the top surface of the steel plate on the side of the cutting seam, and the spade head 20635 arranged on the bottom surface of the steel plate is scraped off when the cutting head 20521 cuts the cutting seam of the steel plate, and the molten pool tumor is scraped off and falls into the inside of the isolation plate 20634, and during the process, the cutting moves to maintain the steel plates on both sides of the cutting seam without inward and outward deviation, and the cleaning of the cutting residues on the top and bottom surfaces of the steel plate is completed.

[0039] And the second descending rod 2074 and the second lifting rod 2073 to the opposite movement, the second lifting rod 2073 bottom of the second bottom support plate 20734 and the steel plate cutting seam on both sides of the bottom contact, and the second descending rod 2074 bottom of the scraping block 20744 and the guide wheel 20746 will be in contact with the top of both sides of the steel plate cutting seam, and then with the cutting head 20521 driven by the first descending rod 2064 and the first lifting rod 2063 movement, the stretching rope 2081 inside the winding cavity 208 on the side of the first descending rod 2064 is gradually pulled, when the stretching rope 2081 is straightened, the second descending rod 2074 and the second lifting rod 2073 on the side of the first descending rod 2064 are pulled, the second descending rod 2074 and the second lifting rod 2073 move on the surface of the horizontal moving track 204 through the side linkage wheel 207 of the driven support plate 207 on the top of the first descending rod 2064, the inner sleeve bottom rod three 20732 and the second polishing layer 20733 which are narrower than the cutting seam width are inserted into the cutting seam, that is, the width of the inner sleeve bottom rod three 20732 and the second polishing layer 20733 is less than the cutting seam width, and moves with the cutting head 20521, the stretching rope 2081 between the subsequent adjacent sleeve plate two 2072 is straightened in turn, the second descending rod 2074 and the second lifting rod 2073 on the side of the first descending rod 2064 are pulled in turn, the inner sleeve bottom rod three 20732 inside is inserted into the cutting seam in turn, and then the inner sleeve bottom rod one 20631 and the inner sleeve bottom rod three 20732 are inserted into the cutting seam, and the second bottom support plate 20734 is supported at the bottom of the steel plate cutting seam, the guide wheel two 20746 and the scraping block two 20744 are pressed on the top of the steel plate cutting seam, so that the cutting head 20521 is cut, the cutting seam is segmented supported and limited, the small steel bar falling during cutting is reduced, especially when cutting small steel bar on the surface of the steel plate, the falling and pulling of the uncut cutting seam caused by the lack of support of the plate-shaped object 1042 is avoided. And in order to make the space between the guide wheel two 20746, the scraping block two 20744 and the secondary bottom support plate 20734 and the thickness of the steel plate consistent after the opposite movement, and make the guide wheel two 20746, the scraping block two 20744 wrap the high temperature resistant elastic rubber layer, or install the spring between the guide wheel two 20746 and the secondary bottom support plate 20745, so that the space between the guide wheel two 20746, the scraping block two 20744 and the secondary bottom support plate 20734 can be moved and connected to the surface of the steel plate, and the inner sleeve bottom rod four 20742 can be pulled out from the inside of the secondary descending rod 2074 and fixed by the bolt on the surface of the secondary descending rod 2074, and the connection mode between the secondary lifting rod 2073 and the inner sleeve bottom rod three 20732, the primary descending rod 2064 and the inner sleeve bottom rod two 20641, and the primary lifting rod 2063 and the inner sleeve bottom rod one 20631 is the same as the connection mode between the secondary descending rod 2074 and the inner sleeve bottom rod four 20742, so that the space between the guide wheel one 20645 and the primary bottom support plate 20633 and the space between the guide wheel two 20746 and the secondary bottom support plate 20734 can be adjusted, so as to adapt to steel plates of different thicknesses; And when the cutting head 20521 finishes cutting the steel plate, the advancing drive source 2011 drives the advancing wheel 2012 to approach the surface of the steel plate, and the primary polishing layer 20632 and the secondary polishing layer 20733 on the side of the transverse moving rail 204 contact the cutting surface of the steel plate that needs to be polished. At this time, the guide wheel two 20746 and the guide wheel one 20645 are preferably universal ball head wheels or universal wheels, so that during the movement of the transverse moving rail 204, the steel plate is always limited between the guide wheel two 20746 and the secondary bottom support plate 20734 and the primary bottom support plate 20633 and the guide wheel one 20645, thereby reducing the polishing alignment process. When the primary polishing layer 20632 and the secondary polishing layer 20733 contact the cutting surface of the steel plate that needs to be polished, the transverse plate 205 is reset under the drive of the transverse wheel 2053, and the primary polishing layer 20632 and the secondary polishing layer 20733 move and polish the cutting surface of the steel plate during the process of the transverse plate 205 returning to the original position, so that the upper and lower parts of the cutting surface of the steel plate and the cutting surface are processed and flattened by the scraping block one 20646, the isolation plate 20634 and the primary polishing layer 20632 and the secondary polishing layer 20733 in turn.

Claims

1. A plasma cutting device for dock machinery steel plate, characterized in that: include: A support cutting platform (1), comprising a support column (101) and a plurality of support plates (1042) arranged on the inner side of the support column (101) and movable up and down, wherein the support plates (1042) are elastically connected to the middle platform (102) via elastic support members (1041) at their bottoms; A cutting unit (2), the cutting unit (2) comprising a cutting head (20521) that moves laterally on the top surface of a supporting plate (1042), a sleeve plate (2062) that moves synchronously with the cutting head (20521) being provided on the side of the cutting head (20521), a first-stage lifting rod (2063) and a first-stage descending rod (2064) that move in opposite directions being provided inside the sleeve plate (2062), a guide wheel (20645) and a scraping block (20646) being provided at the bottom of the first-stage descending rod (2064), the first-stage lifting rod (2063) being connected to a first-stage bottom support plate (20633) via an inner sleeve bottom rod (20631) at its bottom, a scraper head (20635) being installed on the side of the first-stage bottom support plate (20633), and an isolation plate (20634) for receiving slag being provided at the bottom of the first-stage bottom support plate (20633), The side of the sleeve plate 1 (2062) is provided with a plurality of sleeve plates 2 (2072) in sequence, and the interior of the sleeve plate 2 (2072) is provided with a secondary lifting rod (2073) and a secondary descending rod (2074) that move in opposite directions, and the bottom of the secondary descending rod (2074) is provided with a guide wheel 2 (20746) and a scraping block 2 (20744), and the secondary lifting rod (2073) is provided with an inner sleeve bottom rod at its bottom. The third (20732) is connected to the secondary bottom support plate (20734), and the inner bottom rod one (20631) and the inner bottom rod three (20732) at the bottom of several secondary lifting rods (2073) are sequentially clamped inside the cutting seam, so that the guide wheel one (20645) and the guide wheel two (20746) and the first bottom support plate (20633) and the second bottom support plate (20734) can flexibly constrain the upper and lower surfaces of the steel plates on the side of the cutting seam.

2. The plasma cutting device for steel plates used in dock machinery according to claim 1, characterized in that: The middle portion of the support column (101) is fixedly connected to a middle platform (102), and the support plate (1042) is fixedly connected to a circular plate (1045) after the movable rod (104) at the outer bottom end thereof moves through the middle platform (102); The side of the support plate (1042) is fixedly connected to the bottom of the folding rod (1043), and the top of the folding rod (1043) is fixedly connected to a rolling wheel (1044); A trigger block (203) is provided on the side of the rolling wheel (1044), and an arc segment (2031) is provided on the front and rear sides of the trigger block (203). The bottom of the arc segment (2031) is connected to a pressing segment (2032), and the pressing segment (2032) is a plane.

3. The plasma cutting device for steel plates used in dock machinery according to any one of claims 1-2, characterized in that: The cutting head (20521) is mounted on the surface of the movable plate (2052), the back of the movable plate (2052) is movably connected to a slide rail on the surface of the transverse plate (205) via a slider, and the transverse plate (205) is movably arranged on the top surface of the supporting plate (1042); Two upper and lower propulsion sources (2055) are installed on the top of the transverse plate (205), and the output shafts of the two upper and lower propulsion sources (2055) are respectively fixedly connected to the top surfaces of the movable plate (2052) and the track plate (2015).

4. The plasma cutting device for steel plates used in dock machinery according to claim 3, characterized in that: The inner surface of the track plate (2015) is provided with a movable card slot (20151), and a first-stage descending rod (2064) and a plurality of second-stage descending rods (2074) are sequentially arranged inside the movable card slot (20151), and the interior of the movable card slot (20151) is movably engaged with the raised strips on the top sides of the first-stage descending rod (2064) and the second-stage descending rod (2074); The side of the sleeve plate 1 (2062) is fixedly connected to the side of the movable plate (2052).

5. The plasma cutting device for steel plates used in dock machinery according to claim 3, characterized in that: The first-stage lifting rod (2063) and the first-stage descending rod (2064) are both movably connected through a vertical outer groove (20647) and a clamping strip (20621) on their surfaces; the surface of the clamping strip (20621) is fixedly connected to the inner wall of the sleeve plate (2062); the inner wall surface of the sleeve plate (2062) is rotatably connected to a transmission wheel (20622); the opposing surfaces of the first-stage lifting rod (2063) and the first-stage descending rod (2064) are both fixedly connected to toothed plates; the toothed plates on the surface of the first-stage lifting rod (2063) are movably engaged with the toothed plates on the surface of the first-stage descending rod (2064) through the transmission wheel (20622); The inner movable sleeve of the first-level lifting rod (2063) is provided with an inner sleeve bottom rod 1 (20631), and the inner movable sleeve of the first-level descending rod (2064) is provided with an inner sleeve bottom rod 2 (20641).

6. The plasma cutting device for steel plates used in dock machinery according to claim 5, characterized in that: The side of the inner sleeve bottom rod (20631) is fixedly connected to a first-level polishing layer (20632); the projection of the bottom of the cutting head (20521) is located on the surface of the isolation plate (20634); the first-level descending rod (2064) is fixedly connected to the first clamping plate (20642) via the second inner sleeve bottom rod (20641); the bottom of the first clamping plate (20642) is fixedly connected to a first scraping block (20646); The side of the first clamping plate (20642) is fixedly connected to a first-level lower pressing plate (20644), and the first-level lower pressing plate (20644) is movably arranged on the surface of the first-level polishing layer (20632) through a clamping slot (20643) on its side. The bottom of the first-level lower pressing plate (20644) is fixedly connected to a guide wheel (20645).

7. The plasma cutting device for steel plates used in dock machinery according to claim 3, characterized in that: The second sleeve plate (2072) is rotatably mounted with a second transmission wheel (20722) on its interior, and the surfaces of the second-level lifting rod (2073) and the second-level descending rod (2074) are respectively mounted with a second vertical outer groove (20731) and a third vertical outer groove (20741), and the interiors of the second vertical outer groove (20731) and the third vertical outer groove (20741) are both movably connected with a second clamping strip (20721), and the second clamping strip (20721) is fixedly connected to the inner wall of the second sleeve plate (2072), and the toothed plate on the side of the second-level lifting rod (2073) is movably engaged with the toothed plate on the side of the second transmission wheel (20722) and the second-level descending rod (2074); The secondary lifting rod (2073) is internally movably sleeved with an inner sleeve bottom rod three (20732), the surface of the inner sleeve bottom rod three (20732) is installed with a secondary polishing layer (20733), the secondary lowering rod (2074) is internally movably sleeved with an inner sleeve bottom rod four (20742), the bottom of the inner sleeve bottom rod four (20742) is fixedly connected with a clamping plate two (20743), the bottom of the clamping plate two (20743) is fixedly connected with a scraping block two (20744), the side of the clamping plate two (20743) is fixedly connected with a secondary lower pressure plate (20745), the secondary lower pressure plate (20745) is movably clamped on the surface of the secondary polishing layer (20733), and the bottom of the secondary lower pressure plate (20745) is fixedly connected with a guide wheel two (20746).

8. The plasma cutting device for steel plates used in dock machinery according to claim 3, characterized in that: An active support plate (206) is symmetrically mounted on the surface of the first sleeve plate (2062), a linkage wheel (2061) is mounted on the surface of the active support plate (206), and the linkage wheel (2061) is movably connected to the surface of the transverse track (204); a driven support plate (207) is symmetrically mounted on the surface of the second sleeve plate (2072), a linkage wheel (2071) is mounted on the surface of the driven support plate (207), and the linkage wheel (2071) is movably connected to the surface of the transverse track (204); The surfaces of the active supporting plate (206) and the driven supporting plate (207) are both installed with a winding chamber (208), the interior of the winding chamber (208) is rotatably connected to the turntable via a rotating shaft at its center, a stretching rope (2081) is wound around the surface of the turntable, and the active supporting plate (206) and the driven supporting plate (207) as well as adjacent driven supporting plates (207) are connected via the stretching rope (2081).

9. The plasma cutting device for steel plates used in dock machinery according to claim 3, characterized in that: A transverse driving source (2051) is mounted on the surface of the transverse plate (205), a transverse wheel (2053) is mounted on the surface of the transverse plate (205), and a pulley on the output shaft surface of the transverse driving source (2051) is connected to the pulley on the central rotating shaft surface of the transverse wheel (2053) via a second transmission member (2054); A lateral track (204) is movably provided on the side of the support column (101), and the number of the lateral track (204) is two. An active plate (201) is installed on the left and right sides of one lateral track (204), and a driven plate (202) is installed on the left and right sides of the other lateral track (204).

10. The plasma cutting device for steel plates used in dock machinery according to claim 9, characterized in that: A forward driving source (2011) is mounted on the surface of the active plate (201), a forward wheel (2012) is mounted on the surface of the active plate (201), a pulley on the surface of the output shaft of the forward driving source (2011) is connected to the pulley of the central axis of the forward wheel (2012) through a transmission member 1 (2013), a driven wheel (2021) is mounted on the surface of the driven plate (202), the forward wheel (2012) and the driven wheel (2021) are movably connected to the surface of the forward track (103), a trigger block (203) is fixedly connected to the bottom of the active plate (201) and the driven plate (202), a movable plate (214) is movably connected to the surface of the active plate (201) and the driven plate (202), and the movable plate (214) is fixedly connected to the side of the track plate (2015).

Images