Pipe fitting cutting equipment for space truss

Abstract

The invention relates to the technical field of pipe fitting cutting, in particular to a pipe fitting cutting device for a space truss, which comprises a cutting table, supports are fixedly arranged on the upper surface of the cutting table close to two sides, first electric sliding rails are fixedly mounted at the top ends of the supports, and first electric sliding blocks are slidably connected above the first electric sliding rails. A second electric sliding rail is fixedly mounted on the upper surface of the first electric sliding block, and a second electric sliding block is slidably connected to the upper portion of the second electric sliding rail. According to the pipe fitting cutting device, quick fixing of pipe fittings can be achieved, synchronous cutting operation on multiple sets of pipe fittings can be achieved, further, the cutting angle of the pipe fittings can be adjusted, more complex cutting requirements can be met through cooperation with a movable laser cutting head, and further, the cutting efficiency is improved. And when the pipe fitting rotates, the rotation degree of the pipe fitting can be detected through the rotation detection unit, it is ensured that the rotation angle of the pipe fitting is more accurate, the cutting precision can be effectively improved, and the using effect is better.

Description

Technical Field

[0001] The invention relates to the technical field of pipe cutting, and in particular to a pipe cutting device for a space grid. Background Art

[0002] Space grid structures are widely used in large stadiums, exhibition halls, industrial plants and other construction projects because of their advantages such as reasonable spatial force, light weight, high rigidity and good seismic performance. Space grids are usually assembled from a large number of pipes of different specifications and angles through welding, bolting and other methods. During the manufacturing process of space grids, the cutting accuracy and quality of the pipes directly affect the stability and installation accuracy of the entire grid structure.

[0003] At present, common pipe cutting equipment mainly includes manual cutting tools and automatic cutting equipment. Manual cutting tools such as handheld electric saws and pipe cutters are flexible to operate, but have low cutting accuracy, high labor intensity, extremely low cutting efficiency, and poor quality of the pipe ports after cutting. They are prone to problems such as uneven cuts and many burrs, which makes it difficult to meet the high-precision cutting requirements of space grids for pipes. Although automatic cutting equipment such as laser cutting machines and plasma cutting machines have improved cutting accuracy and efficiency to a certain extent, they still have many limitations. For example, they can usually only cut a single pipe during the cutting process, and cannot meet the requirements of simultaneous cutting of multiple groups of pipes. At the same time, they can only perform simple cutting and cannot meet more complex cutting requirements according to installation needs. Therefore, it is urgent to design a pipe cutting device for space grids to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to solve the defects in the prior art and to propose a pipe cutting device for a space grid.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A pipe cutting device for a space grid comprises a cutting table, wherein brackets are fixedly arranged on the upper surface of the cutting table near both sides, and an electric slide rail 1 is fixedly installed on the top of the bracket, an electric slider 1 is slidably connected to the upper side of the electric slide rail 1, and an electric slide rail 2 is fixedly installed on the upper surface of the electric slider 1, an electric slider 2 is slidably connected to the upper side of the electric slide rail 2, and a mounting frame is fixedly arranged on the outer side of the electric slider 2, a limit strip is fixedly arranged in the mounting frame, a moving block is slidably arranged between adjacent limit strips, a servo motor is fixedly arranged on the top of the mounting frame, and a screw is rotatably connected to the driving end of the servo motor, a threaded hole is opened on the outer wall of the moving block, and the screw is threadedly arranged in the threaded hole, a laser cutting head is fixedly arranged on the outer wall of the moving block, and further comprises: A lifting unit, which is arranged below the cutting table and is used to synchronously lift the pipe to be cut in the arc groove upward; A fixing unit, which is arranged above the cutting table and is used to fix the pipe to be cut held by the holding unit and drive the pipe to rotate between the fixing unit and the holding unit; A rotation detection unit is arranged on one side of the cutting table and is used to detect the rotation degree of the pipe.

[0006] As a further solution of the present invention: the lifting unit includes a lifting plate movably arranged under the cutting table, the outer wall of the lifting plate is provided with a mounting hole, and a hydraulic cylinder is fixedly installed in the mounting hole, the telescopic end of the hydraulic cylinder is connected to the lower surface of the cutting table, and the upper surface of the lifting plate is also fixedly provided with push rods that are symmetrical in pairs and distributed in a rectangular array, and rubber wheels are fixedly installed on the top of the push rods, the outer wall of the cutting table is provided with a lifting opening corresponding to the push rod, and the push rod is located in the lifting opening, and the lifting opening is located on both sides of the arc groove.

[0007] As a further solution of the present invention: the fixing unit includes a slide groove opened on the upper surface of the cutting table near the two sides, a slide plate is slidably arranged in the slide groove, and a fixing block is fixedly installed on the upper surface of the slide plate, a vertical pole is fixedly installed on the upper surface of the fixing block, and a clamping plate is sleeved on the outer side of the vertical pole, a first spring is also sleeved on the outer side of the vertical pole, one end of the first spring is connected to the upper surface of the fixing block, and the other end of the first spring is connected to the lower surface of the clamping plate, a rotating assembly is also arranged in the clamping plate, which is used to drive the pipe fitting to rotate between the clamping plate and the rubber wheel, and an adjusting assembly is also arranged on the top of the vertical pole, which is used to adjust the clamping force applied by the clamping plate to the pipe fitting.

[0008] As a further solution of the present invention: the rotating assembly includes a sliding plate, the outer wall of the clamping plate is provided with a mounting opening, and a limiting rod is fixedly arranged in the mounting opening, the sliding plate is slidably sleeved on the outer side of the limiting rod, a rubber sheet is fixedly arranged on the lower surface of the sliding plate, mounting holes are provided at both ends of the sliding plate, and a telescopic cylinder is fixedly arranged in the mounting hole, and the telescopic end of the telescopic cylinder is connected to the inner wall of the mounting opening.

[0009] As a further solution of the present invention: the adjustment component includes a top plate fixedly arranged on the top end of the vertical pole, and the outer wall of the top plate is threadedly connected with a threaded rod, the top end of the threaded rod is fixedly installed with a turntable, and the bottom end of the threaded rod is fixedly installed with a touch switch.

[0010] As a further solution of the present invention: the rotation detection unit includes a bracket fixedly arranged on one side of the cutting table at an equal distance, and the bracket and the arc groove correspond to each other, a support assembly is arranged above the bracket, an electric telescopic rod is fixedly installed on the upper surface of the support assembly, and a sleeve is fixedly installed on the telescopic end of the electric telescopic rod, a rotating shaft is rotatably arranged in the sleeve, and a silicone wheel is fixedly installed on the outer wall of the rotating shaft, a disc is fixedly installed on the end of the rotating shaft, and a spiral blade is fixedly arranged on the outer wall of the disc, a support frame is also fixedly arranged on the lower surface of the sleeve, and a laser rangefinder is arranged at the end of the support frame, the laser rangefinder is aimed at the spiral blade, and is used to detect the distance change between the laser rangefinder and the surface of the spiral blade.

[0011] As a further solution of the present invention: the support assembly includes a support plate movably arranged above the bracket, and the electric telescopic rod is fixedly arranged on the upper surface of the support plate, a fixing rod is fixedly arranged in the bracket, and the support plate is sleeved on the outside of the fixing rod, a baffle is fixedly arranged on the top of the fixing rod, and a second spring is sleeved on the outside of the fixing rod, the second spring is located between the support plate and the bracket, and a pressure sensor is also arranged on the surface of the bracket, and the pressure sensor is located between the support plate and the bracket.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a pipe cutting device for a space grid frame, which includes two conventional accessories: a frame pipe and a connecting pipe. When the space grid frame is installed, the frame pipes are usually connected by welding with the help of the connecting pipes, that is, the two ends of the connecting pipes are welded to the side walls of the frame pipes to be connected. Therefore, it is necessary to cut the ends of the connecting pipes into arc shapes to ensure that the ends of the connecting pipes can fit tightly with the side walls of the frame pipes to be welded to ensure stability after welding. Therefore, when the pipe cutting device cuts the pipes used for the space grid frame, the pipes to be cut are first placed in the arc grooves on the surface of the cutting table. The arc grooves can serve the purpose of initial positioning of the pipes to avoid The pipe rolls on the surface of the cutting table. When the pipe is placed, the lifting unit can lift the pipe in the arc groove and clamp it by the fixing unit. The electric slider 1 slides on the surface of the electric slide rail 1 to drive the electric slide rail 2 to move left and right. The electric slider 2 slides on the surface of the electric slide rail 2 to drive the mounting frame to move forward and backward. The servo motor drives the screw to rotate, which can drive the moving block to move up and down, so that the laser cutting head on one side of the moving block can move in the X, Y, and Z directions, so that the laser cutting head can quickly move to the cutting position of the pipe, make the laser beam perpendicular to the cutting surface of the pipe, and cut the pipe through the laser cutting head according to the preset cutting path. When cutting, first move the pipe away from the rotating The laser cutting head is used to cut the ends of the pipe fittings into arc surfaces that match the frame pipe fittings. When the ends of the pipe fittings are cut one by one, usually, there is no need to rotate the pipe fittings. The laser cutting head can be directly controlled to cut the other end of the pipe fittings into the same arc surface. However, due to the different installation requirements, the frame pipe fittings corresponding to the two ends of the connecting pipe fittings may be staggered. Therefore, before cutting the other end of the pipe fittings, the fixing unit can be used to drive the pipe fittings to rotate, so that the cutting angle of the pipe fittings can also be adjusted, so that the two ends of the connecting pipe fittings after cutting can be effectively fitted with the side walls of the staggered frame pipe fittings, and after the cutting angle of the pipe fittings is adjusted, the fixing unit can still stably clamp the pipe fittings to ensure the laser The cutting head can also perform stable cutting on the other end of the pipe. Furthermore, the rotation detection unit can be used to detect the rotation degree of the pipe when it rotates, ensuring that the rotation angle of the pipe is more accurate. The pipe is cut only when it reaches the specified rotation angle, which can effectively improve the cutting accuracy. The pipe cutting equipment effectively realizes the synchronous loading of pipes in the same batch, and then quickly cuts one end of the pipe one by one. When the cutting angle of the other end of the pipe needs to be adjusted, the fixed unit can be used to directly cause the same batch of pipes to rotate synchronously, and the pipes can still be stably clamped after rotation, and then the other end of the pipe can be quickly cut one by one, which effectively realizes batch processing of pipes, greatly improves cutting efficiency, and has better use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic structural diagram of a first-view perspective of a pipe cutting device for a space grid provided by an embodiment of the present invention; Figure 2 A schematic structural diagram of a pipe cutting device for a space grid provided by an embodiment of the present invention from a second viewing angle; Figure 3 A schematic structural diagram of a laser cutting head in a pipe cutting device for a space grid provided in an embodiment of the present invention; Figure 4 A schematic structural diagram of a lifting unit in a pipe cutting device for a space grid provided in an embodiment of the present invention; Figure 5 A schematic structural diagram of a fixing unit in a pipe cutting device for a space grid provided by an embodiment of the present invention; Figure 6 A schematic structural diagram of a third perspective of a pipe cutting device for a space grid provided by an embodiment of the present invention; Figure 7 A schematic structural diagram of a rotation detection unit in a pipe cutting device for a space grid provided by an embodiment of the present invention; Figure 8 A schematic structural diagram from a fourth perspective of a pipe cutting device for a space grid provided in an embodiment of the present invention.

[0014] In the figure: 101-cutting table, 102-bracket, 103-electric slide rail 1, 104-electric slide block 1, 105-electric slide rail 2, 106-electric slide block 2, 107-mounting frame, 108-limiting bar, 109-moving block, 110-servo motor, 111-screw, 112-laser cutting head, 113-arc groove, 201-hydraulic cylinder, 202-lifting plate, 203-top rod, 204-rubber wheel, 205-lifting port, 301-slideway, 302-slide plate, 303-fixed block, 304-vertical pole, 305-first spring Spring, 306-clamp, 307-limit rod, 308-slide plate, 309-rubber sheet, 310-telescopic cylinder, 401-top plate, 402-turntable, 403-threaded rod, 404-touch switch, 501-bracket, 502-electric telescopic rod, 503-sleeve, 504-rotating shaft, 505-silicone wheel, 506-disc, 507-spiral leaf, 508-support frame, 509-laser rangefinder, 601-support plate, 602-fixed rod, 603-blocking piece, 604-second spring, 605-pressure sensor. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0016] like Figure 1-Figure 8 As shown, a pipe cutting device for a space grid provided by an embodiment of the present invention comprises a cutting table 101, wherein brackets 102 are fixedly arranged at positions near both sides of the upper surface of the cutting table 101, and an electric slide rail 103 is fixedly installed at the top of the bracket 102, an electric slider 104 is slidably connected to the upper part of the electric slide rail 103, and an electric slide rail 2 105 is fixedly installed on the upper surface of the electric slider 104, an electric slide rail 2 106 is slidably connected to the upper part of the electric slide rail 2 105, and a mounting frame 107 is fixedly arranged on the outer side of the electric slider 2 106, a limit strip 108 is fixedly installed in the mounting frame 107, a moving block 109 is slidably arranged between adjacent limit strips 108, and the top of the mounting frame 107 is fixedly mounted. A servo motor 110 is fixedly installed, and the driving end of the servo motor 110 is rotatably connected to a screw rod 111. A threaded hole is opened on the outer wall of the moving block 109, and the screw rod 111 is threadedly arranged in the threaded hole. A laser cutting head 112 is fixedly installed on the outer wall of the moving block 109, and also includes: a lifting unit, which is arranged below the cutting table 101, and is used to synchronously lift the pipe to be cut in the arc groove 113 upward; a fixing unit, which is arranged above the cutting table 101, and is used to fix the pipe to be cut lifted by the lifting unit and drive the pipe to rotate between the fixing unit and the lifting unit; a rotation detection unit, which is arranged on one side of the cutting table 101, and is used to detect the rotation degree of the pipe.

[0017] The space grid includes two conventional accessories: frame pipe fittings and connecting pipe fittings. When the space grid is installed, the frame pipe fittings are usually connected by welding with the help of connecting pipe fittings, that is, the two ends of the connecting pipe fittings are welded to the side walls of the frame pipe fittings to be connected. Therefore, the ends of the connecting pipe fittings need to be cut into an arc shape to ensure that the ends of the connecting pipe fittings can fit tightly with the side walls of the frame pipe fittings to be welded to ensure stability after welding. Therefore, when the pipe cutting device is used to cut pipe fittings for the space grid, the pipe fittings to be cut are first placed in the arc groove 113 on the surface of the cutting table 101. The arc groove 113 can serve the purpose of initial positioning of the pipe fittings to prevent the pipe fittings from rolling on the surface of the cutting table 101. When the pipe fittings are placed After completion, the pipe in the arc groove 113 can be lifted by the lifting unit and clamped and fixed by the fixing unit. The electric slider 104 slides on the surface of the electric slide rail 103 to drive the electric slide rail 2 105 to move left and right. The electric slider 106 slides on the surface of the electric slide rail 2 105 to drive the mounting frame 107 to move forward and backward. The servo motor 110 drives the screw 111 to rotate, which can drive the moving block 109 to move up and down, so that the laser cutting head 112 on one side of the moving block 109 can move in the X, Y, and Z directions, so that the laser cutting head 112 can quickly move to the position to be cut of the pipe, so that the laser beam is perpendicular to the cutting surface of the pipe, and the laser cutting head 112 cuts the pipe according to the preset cutting path. During the cutting operation, the end of the pipe away from the rotating detection unit is first cut, and the end of the pipe is cut into an arc surface matching the frame pipe. After the ends of the pipe are cut one by one, usually, there is no need to rotate the pipe, and the laser cutting head 112 can be directly controlled to cut the other end of the pipe into the same arc surface. However, since the frame pipes corresponding to the two ends of the connecting pipe may be staggered due to different installation requirements, before cutting the other end of the pipe, the fixing unit can be used to drive the pipe to rotate, so that the cutting angle of the pipe can also be adjusted, so that the two ends of the connecting pipe after cutting can effectively fit with the side walls of the staggered frame pipes, and after the cutting angle of the pipe is adjusted, the fixing unit can still The pipe fitting is stably clamped to ensure that the laser cutting head 112 can also stably cut the other end of the pipe fitting. Furthermore, the rotation degree of the pipe fitting can be detected by means of a rotation detection unit when the pipe fitting is rotating to ensure that the rotation angle of the pipe fitting is more accurate. The pipe fitting is cut only when the pipe fitting reaches the specified rotation angle, which can effectively improve the cutting accuracy. The pipe fitting cutting equipment effectively realizes that the pipe fittings of the same batch can be loaded synchronously, and then one end of the pipe fitting is quickly cut one by one. When the cutting angle of the other end of the pipe fitting needs to be adjusted, the same batch of pipe fittings can be directly caused to rotate synchronously through the fixing unit, and they can still be stably clamped after rotation, and then the other end of the pipe fitting is quickly cut one by one, which effectively realizes batch processing of pipe fittings and greatly improves cutting efficiency.The effect will be better.

[0018] As an embodiment of the present invention, please refer to Figure 1 , Figure 4 and Figure 8 The lifting unit includes a lifting plate 202 movably arranged below the cutting table 101. The outer wall of the lifting plate 202 is provided with a mounting hole, and a hydraulic cylinder 201 is fixedly installed in the mounting hole. The telescopic end of the hydraulic cylinder 201 is connected to the lower surface of the cutting table 101. The upper surface of the lifting plate 202 is also fixedly provided with push rods 203 that are symmetrical and distributed in a rectangular array. The top of the push rod 203 is fixedly installed with a rubber wheel 204. The outer wall of the cutting table 101 is provided with a lifting port 205 corresponding to the push rod 203, and the push rod 203 is located at the lifting port 205. In the figure, the lifting port 205 is located on both sides of the arc groove 113. When it is necessary to lift the pipe fittings, the lifting plate 202 can be moved upward by the extension and retraction of the hydraulic cylinder 201, and the lifting plate 202 drives the push rod 203 to move upward, so that the rubber wheel 204 at the top of the push rod 203 is moved out of the lifting port 205, so that the pipe fittings in the arc groove 113 can be lifted up, and the pipe fittings are just restricted between the rubber wheels 204, which plays a role in limiting the position of the pipe fittings, and the symmetrically distributed rubber wheels 204 can realize the lifting operation of pipe fittings of different sizes, which is more flexible to use.

[0019] As an embodiment of the present invention, please refer to Figure 5 and Figure 8 The fixing unit includes a slide groove 301 opened on the upper surface of the cutting table 101 near the two sides, a slide plate 302 is slidably arranged in the slide groove 301, and a fixing block 303 is fixedly installed on the upper surface of the slide plate 302, a vertical rod 304 is fixedly installed on the upper surface of the fixing block 303, and a clamping plate 306 is sleeved on the outer side of the vertical rod 304, and a first spring 305 is also sleeved on the outer side of the vertical rod 304, one end of the first spring 305 is connected to the upper surface of the fixing block 303, and the other end of the first spring 305 is connected to the lower surface of the clamping plate 306, and a rotating component is also provided in the clamping plate 306 for driving The pipe fitting rotates between the clamping plate 306 and the rubber wheel 204. An adjustment component is also provided at the top of the vertical rod 304 for adjusting the clamping force applied by the clamping plate 306 to the pipe fitting. When the pipe fitting is lifted up, the pipe fitting will be blocked by the clamping plate 306, and the clamping plate 306 will be prompted to move outside the vertical rod 304, and the first spring 305 outside the vertical rod 304 will be stretched, so that the pipe fitting can be clamped between the clamping plate 306 and the rubber wheel 204, thereby fixing the pipe fitting. The slide plate 302 can move flexibly in the slide groove 301, so that the clamping position can be flexibly adjusted according to needs, and the use effect is better.

[0020] As an embodiment of the present invention, please refer to Figure 5 and Figure 8The rotating assembly includes a sliding plate 308, an installation opening is provided on the outer wall of the clamping plate 306, and a limit rod 307 is fixedly provided in the installation opening. The sliding plate 308 is slidably sleeved on the outer side of the limit rod 307, and a rubber sheet 309 is fixedly provided on the lower surface of the sliding plate 308. Both ends of the sliding plate 308 are provided with installation holes, and a telescopic cylinder 310 is fixedly provided in the installation hole. The telescopic end of the telescopic cylinder 310 is connected to the inner wall of the installation opening. When the pipe fitting is lifted up, the rubber sheet 309 on the lower surface of the sliding plate 308 is The rubber sheet 309 will replace the clamping plate 306 to contact the pipe fitting, so that the pipe fitting is clamped between the rubber wheel 204 and the rubber sheet 309. When the pipe fitting needs to be rotated, the telescopic cylinder 310 can be used to drive the sliding plate 308 to move outside the limit rod 307. Since the rubber sheet 309 on the lower surface of the sliding plate 308 is tightly fitted with the pipe fitting, when the sliding plate 308 moves, the pipe fitting will rotate between the rubber sheet 309 and the rubber wheel 204, thereby achieving the purpose of rotating the pipe fitting, which is very convenient to use.

[0021] As an embodiment of the present invention, please refer to Figure 5 The adjustment component includes a top plate 401 fixedly arranged on the top of the vertical pole 304, and the outer wall of the top plate 401 is threadedly connected with a threaded rod 403, a turntable 402 is fixedly installed on the top of the threaded rod 403, and a touch switch 404 is fixedly installed on the bottom end of the threaded rod 403. When the clamping plate 306 moves up and contacts the touch switch 404, the hydraulic cylinder 201 can be prompted to stop extending and retracting. By rotating the turntable 402, the threaded rod 403 can be driven to rotate, and the initial position of the touch switch 404 can be adjusted, thereby achieving the purpose of adjusting the clamping force of the clamping plate 306, achieving stable clamping while avoiding damage to the pipe fittings, and having a better use effect.

[0022] As an embodiment of the present invention, please refer to Figure 6 and Figure 7The rotation detection unit includes a bracket 501 fixedly arranged at an equal distance on one side of the cutting table 101, and the bracket 501 corresponds to the arc groove 113. A support assembly is arranged above the bracket 501, and an electric telescopic rod 502 is fixedly installed on the upper surface of the support assembly, and a sleeve 503 is fixedly installed on the telescopic end of the electric telescopic rod 502, a rotating shaft 504 is rotatably arranged in the sleeve 503, and a silicone wheel 505 is fixedly installed on the outer wall of the rotating shaft 504, a disc 506 is fixedly installed at the end of the rotating shaft 504, and a spiral blade 507 is fixedly arranged on the outer wall of the disc 506, a support frame 508 is also fixedly arranged on the lower surface of the sleeve 503, and a laser rangefinder 509 is arranged at the end of the support frame 508, and the laser rangefinder 509 is aligned with the spiral blade 507. The spiral blade 507 is used to detect the change in distance between the laser rangefinder 509 and the surface of the spiral blade 507. When the pipe is fixed, the sleeve 503 can be driven to move upward by the electric telescopic rod 502, so that the silicone wheel 505 and the pipe are in contact with each other. When the pipe rotates, the silicone wheel 505 also rotates together. The silicone wheel 505 can drive the rotating shaft 504 to rotate in the sleeve 503, so that the disk 506 at the end of the rotating shaft 504 and the spiral blade 507 rotate together. The laser rangefinder 509 detects the change in distance between the laser rangefinder 509 and the surface of the spiral blade 507, so as to detect the rotation angle of the pipe, so as to ensure that the rotation angle of the pipe is more accurate, which can effectively improve the cutting accuracy and achieve better use effect.

[0023] As an embodiment of the present invention, please refer to Figure 6 and Figure 7 The support assembly includes a support plate 601 movably arranged above the bracket 501, and the electric telescopic rod 502 is fixedly arranged on the upper surface of the support plate 601, a fixed rod 602 is fixedly arranged in the bracket 501, and the support plate 601 is sleeved on the outer side of the fixed rod 602, a baffle 603 is fixedly arranged on the top of the fixed rod 602, and a second spring 604 is sleeved on the outer side of the fixed rod 602, and the second spring 604 is located between the support plate 601 and the bracket 501, and a pressure sensor 605 is also arranged on the surface of the bracket 501, and the pressure sensor 605 is located between the support plate 601 and the bracket 501 When the electric telescopic rod 502 drives the sleeve 503 to move upward so that the silicone wheel 505 fits the surface of the pipe fitting, the electric telescopic rod 502 will apply a downward force to the support plate 601, causing the second spring 604 on the outside of the fixed rod 602 to be compressed, until the support plate 601 contacts the pressure sensor 605 so that the pressure sensor 605 detects a pressure signal, which can prompt the electric telescopic rod 502 to stop extending and retracting, ensuring that the silicone wheel 505 applies a suitable holding force to the pipe fitting, so that the silicone wheel 505 can rotate with the pipe fitting while avoiding excessive holding force to hinder the rotation of the pipe fitting, and the use effect is better.

[0024] When in use, the pipe to be cut can be placed in the arc groove 113 on the surface of the cutting table 101. The arc groove 113 can serve the purpose of initially positioning the pipe to prevent the pipe from rolling on the surface of the cutting table 101. When the pipe is placed, the pipe in the arc groove 113 can be lifted by the lifting unit and clamped and fixed by the fixing unit. The electric slider 104 can slide on the surface of the electric slide rail 103 to drive the electric slide rail 2 105 to move left and right. The electric slider 2 106 can slide on the surface of the electric slide rail 2 105 to drive the mounting frame 107 to move forward and backward. The servo motor 110 drives the screw 111 to rotate. The moving block 109 is driven to move up and down, so that the laser cutting head 112 on one side of the moving block 109 can move in the three directions of X, Y, and Z, so that the laser cutting head 112 can quickly move to the position of the pipe to be cut, so that the laser beam is perpendicular to the cutting surface of the pipe, and the pipe is cut by the laser cutting head 112 according to the preset cutting path. When cutting, the end of the pipe away from the rotating detection unit is cut first, and the end of the pipe is cut into an arc surface that matches the frame pipe. When the ends of the pipe are cut one by one, usually, there is no need to rotate the pipe, and the laser cutting head 112 is directly controlled The other end of the pipe fitting can be cut into the same arc surface. However, since the frame pipe fittings corresponding to the two ends of the connecting pipe fitting may be staggered due to different installation requirements, before cutting the other end of the pipe fitting, the fixing unit can be used to drive the pipe fitting to rotate so that the cutting angle of the pipe fitting can be adjusted to achieve that the two ends of the connecting pipe fitting after cutting can effectively fit between the side walls of the staggered frame pipe fittings, and after the cutting angle of the pipe fitting is adjusted, the fixing unit can still stably clamp the pipe fitting to ensure that the laser cutting head 112 can also stably cut the other end of the pipe fitting. Furthermore, the pipe fitting can also rotate when rotating. The rotation degree of the pipe fitting can be detected with the help of the rotation detection unit to ensure that the rotation angle of the pipe fitting is more accurate. The pipe fitting is cut only when it reaches the specified rotation angle, which can effectively improve the cutting accuracy. The pipe fitting cutting equipment effectively realizes that the pipe fittings of the same batch can be loaded synchronously, and then one end of the pipe fitting is quickly cut one by one. When the cutting angle of the other end of the pipe fitting needs to be adjusted, the same batch of pipe fittings can be directly caused to rotate synchronously through the fixed unit, and they can still maintain stable clamping after rotation, and then the other end of the pipe fitting is quickly cut one by one, which effectively realizes batch processing of pipe fittings, greatly improves cutting efficiency, and has better use effect.

[0025] It should be particularly noted that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A pipe cutting device for a space grid, comprising a cutting table, characterized in that: The upper surface of the cutting table is fixedly provided with brackets near both sides, and an electric slide rail 1 is fixedly installed on the top of the bracket, an electric slider 1 is slidably connected to the upper side of the electric slide rail 1, and an electric slide rail 2 is fixedly installed on the upper surface of the electric slider 1, an electric slider 2 is slidably connected to the upper side of the electric slide rail 2, and a mounting frame is fixedly provided on the outer side of the electric slider 2, a limit strip is fixedly installed in the mounting frame, a moving block is slidably provided between adjacent limit strips, a servo motor is fixedly installed on the top of the mounting frame, and a screw is rotatably connected to the driving end of the servo motor, a threaded hole is provided on the outer wall of the moving block, and the screw thread is arranged in the threaded hole, a laser cutting head is fixedly installed on the outer wall of the moving block, and it also includes: A lifting unit, which is arranged below the cutting table and is used to synchronously lift the pipe to be cut in the arc groove upward; A fixing unit, which is arranged above the cutting table and is used to fix the pipe to be cut held by the holding unit and drive the pipe to rotate between the fixing unit and the holding unit; A rotation detection unit is arranged on one side of the cutting table and is used to detect the rotation degree of the pipe.

2. A space grid pipe cutting device according to claim 1, characterized in that: The lifting unit includes a lifting plate movably arranged under the cutting table, the outer wall of the lifting plate is provided with a mounting hole, and a hydraulic cylinder is fixedly installed in the mounting hole, the telescopic end of the hydraulic cylinder is connected to the lower surface of the cutting table, and the upper surface of the lifting plate is also fixedly provided with push rods that are symmetrical and distributed in a rectangular array in pairs, and rubber wheels are fixedly installed on the top ends of the push rods, the outer wall of the cutting table is provided with a lifting opening corresponding to the push rod, and the push rod is located in the lifting opening, and the lifting opening is located on both sides of the arc groove.

3. A space grid pipe cutting device according to claim 2, characterized in that: The fixing unit includes a slide groove opened on the upper surface of the cutting table near the two sides, a slide plate is slidably arranged in the slide groove, and a fixing block is fixedly installed on the upper surface of the slide plate, a vertical rod is fixedly installed on the upper surface of the fixing block, and a clamping plate is sleeved on the outer side of the vertical rod, and a first spring is also sleeved on the outer side of the vertical rod, one end of the first spring is connected to the upper surface of the fixing block, and the other end of the first spring is connected to the lower surface of the clamping plate, a rotating component is also arranged in the clamping plate, which is used to drive the pipe fitting to rotate between the clamping plate and the rubber wheel, and an adjusting component is also arranged on the top of the vertical rod, which is used to adjust the clamping force applied by the clamping plate to the pipe fitting.

4. The space grid pipe cutting device according to claim 3, characterized in that: The rotating assembly includes a sliding plate, an outer wall of the clamping plate is provided with a mounting opening, and a limiting rod is fixedly arranged in the mounting opening, the sliding plate is slidably sleeved on the outer side of the limiting rod, a rubber sheet is fixedly arranged on the lower surface of the sliding plate, mounting holes are provided at both ends of the sliding plate, and a telescopic cylinder is fixedly arranged in the mounting hole, and the telescopic end of the telescopic cylinder is connected to the inner wall of the mounting opening.

5. The space grid pipe cutting device according to claim 4, characterized in that: The adjustment assembly includes a top plate fixedly arranged on the top end of the vertical pole, and a threaded rod is threadedly connected through the outer wall of the top plate, a turntable is fixedly installed on the top end of the threaded rod, and a touch switch is fixedly installed on the bottom end of the threaded rod.

6. The space grid pipe cutting device according to claim 1, characterized in that: The rotation detection unit includes a bracket fixedly arranged at an equal distance on one side of the cutting table, and the bracket and the arc groove correspond to each other, a support assembly is arranged above the bracket, an electric telescopic rod is fixedly installed on the upper surface of the support assembly, and a sleeve is fixedly installed on the telescopic end of the electric telescopic rod, a rotating shaft is rotatably arranged in the sleeve, and a silicone wheel is fixedly installed on the outer wall of the rotating shaft, a disc is fixedly installed on the end of the rotating shaft, and a spiral blade is fixedly arranged on the outer wall of the disc, a support frame is also fixedly arranged on the lower surface of the sleeve, and a laser rangefinder is arranged at the end of the support frame, and the laser rangefinder is aimed at the spiral blade for detecting the distance change between the laser rangefinder and the surface of the spiral blade.

7. The space grid pipe cutting device according to claim 6, characterized in that: The support assembly includes a support plate movably arranged above the bracket, and the electric telescopic rod is fixedly arranged on the upper surface of the support plate, a fixing rod is fixedly arranged in the bracket, and the support plate is sleeved on the outer side of the fixing rod, a blocking piece is fixedly arranged on the top end of the fixing rod, and a second spring is sleeved on the outer side of the fixing rod, the second spring is located between the support plate and the bracket, and a pressure sensor is also arranged on the surface of the bracket, and the pressure sensor is located between the support plate and the bracket.

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