A pipe fitting cutting device for a space grid

Abstract

The present invention relates to the technical field of pipe fitting cutting, and particularly relates to a pipe fitting cutting device for a space grid, which includes a cutting table. At positions near both sides of the upper surface of the cutting table, brackets are fixedly arranged, and an electric slide rail I is fixedly installed at the top of the bracket. An electric slider I is slidably connected above the electric slide rail I, and an electric slide rail II is fixedly installed on the upper surface of the electric slider I. An electric slider II is slidably connected above the electric slide rail II. The present invention can achieve the rapid fixation of pipe fittings and realize the synchronous cutting operation of multiple groups of pipe fittings. Further, the cutting angle of the pipe fittings can also be adjusted, and in cooperation with the moving laser cutting head, it can meet more complex cutting requirements. Furthermore, when the pipe fitting rotates, the rotation degree of the pipe fitting can be detected by means of a rotation detection unit to ensure that the rotation angle of the pipe fitting is more accurate, which can effectively improve the cutting accuracy and has a better use effect.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe fitting cutting, and particularly relates to a pipe fitting cutting device for a space grid structure. Background Art

[0002] Due to its advantages such as reasonable spatial force, light weight, high stiffness, and good seismic performance, the space grid structure is widely used in construction projects such as large stadiums, exhibition halls, and industrial factories. The space grid is usually assembled by a large number of pipe fittings with different specifications and angles through welding, bolt connection, etc. During the manufacturing process of the space grid, the cutting accuracy and quality of the pipe fittings directly affect the stability and installation accuracy of the entire grid structure.

[0003] Currently, common pipe fitting cutting devices mainly include manual cutting tools and automated cutting devices. Manual cutting tools such as hand-held electric saws and pipe cutters, although flexible in operation, have low cutting accuracy, high labor intensity, extremely low cutting efficiency, and poor port quality of the cut pipe fittings, prone to problems such as uneven cut surfaces and many burrs, and are difficult to meet the high-precision cutting requirements of pipe fittings for space grids. Automated cutting devices such as laser cutting machines and plasma cutting machines, although they improve the cutting accuracy and efficiency to a certain extent, still have many limitations. For example, during the cutting process, they usually can only cut a single pipe fitting and cannot meet the requirement of synchronous cutting of multiple groups of pipe fittings. At the same time, they can only perform simple cutting and cannot meet more complex cutting requirements according to installation needs. Therefore, there is an urgent need to design a pipe fitting cutting device for a space grid to solve the above problems. Summary of the Invention

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

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A pipe fitting cutting device for a space grid includes a cutting table. On both sides of the upper surface of the cutting table, brackets are fixedly arranged, and an electric slide rail 1 is fixedly installed at the top of the brackets. An electric slider 1 is slidably connected above 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 above the electric slide rail 2, and a mounting frame is fixedly arranged on the outside of the electric slider 2. A limiting strip is fixedly installed in the mounting frame, and a moving block is slidably arranged between adjacent limiting strips. A servo motor is fixedly installed at the top of the mounting frame, and a screw rod 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 rod is threadedly arranged in the threaded hole. A laser cutting head is fixedly installed on the outer wall of the moving block. It also includes:

[0007] A lifting unit is provided below the cutting table and is used to lift the pipe to be cut in the arc groove upward synchronously;

[0008] A fixing unit is provided above the cutting table and is used to fix the pipe to be cut held by the lifting unit and drive the pipe to rotate between the fixing unit and the lifting unit;

[0009] A rotation detection unit is provided on one side of the cutting table and is used to detect the rotation degree of the pipe.

[0010] 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 fixed with push rods that are symmetrical and distributed in a rectangular array, and the top ends of the push rods are fixedly installed with rubber wheels, 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.

[0011] 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 both sides, a slide plate is slidably arranged in the slide groove, and a fixed block is fixedly installed on the upper surface of the slide plate, a vertical rod is fixedly installed on the upper surface of the fixed block, and a splint 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 fixed block, and the other end of the first spring is connected to the lower surface of the splint, and a rotating assembly is also provided in the splint for driving the pipe fitting to rotate between the splint and the rubber wheel, and an adjustment assembly is also provided at the top of the vertical rod for adjusting the clamping force applied by the splint to the pipe fitting.

[0012] 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.

[0013] 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.

[0014] As a further solution of the present invention: The rotation detection unit includes a bracket fixedly arranged at equal distances on one side of the cutting table, and the bracket corresponds to the arc groove. 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 at the telescopic end of the electric telescopic rod. A rotating shaft is rotatably arranged in the sleeve, and a silica gel wheel is fixedly installed on the outer wall of the rotating shaft. A disc is fixedly installed at 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 aligned with the spiral blade for detecting the change in the distance between the laser rangefinder and the surface of the spiral blade.

[0015] 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 fixed rod is fixedly arranged in the bracket, and the support plate is sleeved on the outside of the fixed rod. A stop piece is fixedly arranged at the top of the fixed rod, and a second spring is sleeved on the outside of the fixed rod. The second spring is located between the support plate and the bracket. 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.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The present invention provides a pipe cutting device for a space grid frame. The space grid frame includes two conventional accessories: frame pipes and connecting pipes. When the space grid frame is installed, the frame pipes are usually connected by welding with the help of 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, the ends of the connecting pipes need to be cut 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 is used to cut pipes for space grid frames, 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, avoiding The pipe rolls on the surface of the cutting table. When the pipe is placed, the pipe in the arc groove can be lifted by the lifting unit and clamped 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, thereby enabling the laser cutting head on one side of the moving block to move in the X, Y, and Z directions, so that the laser cutting head 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 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 be adjusted to achieve effective fit between the two ends of the connecting pipe fittings and the side walls of the staggered frame pipe fittings after cutting. After the cutting angle of the pipe fittings is adjusted, the fixing unit can still stably clamp the pipe fittings to ensure that 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 that the pipes of the same batch can be loaded synchronously, and then one end of the pipe is quickly cut 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 pipes of the same batch to rotate synchronously, and the pipes can still be stably clamped after rotation, and then the other end of the pipe is 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

[0018] Figure 1 It is a schematic structural diagram of the first perspective of a pipe fitting cutting device for a space grid provided by an embodiment of the present invention;

[0019] Figure 2 It is a schematic structural diagram of the second perspective of a pipe fitting cutting device for a space grid provided by an embodiment of the present invention;

[0020] Figure 3 It is a schematic structural diagram of a laser cutting head in a pipe fitting cutting device for a space grid provided by an embodiment of the present invention;

[0021] Figure 4 It is a schematic structural diagram of a lifting unit in a pipe fitting cutting device for a space grid provided by an embodiment of the present invention;

[0022] Figure 5 It is a schematic structural diagram of a fixing unit in a pipe fitting cutting device for a space grid provided by an embodiment of the present invention;

[0023] Figure 6 It is a schematic structural diagram of the third perspective of a pipe fitting cutting device for a space grid provided by an embodiment of the present invention;

[0024] Figure 7 It is a schematic structural diagram of a rotation detection unit in a pipe fitting cutting device for a space grid provided by an embodiment of the present invention;

[0025] Figure 8 It is a schematic structural diagram of the fourth perspective of a pipe fitting cutting device for a space grid provided by an embodiment of the present invention.

[0026] In the figure: 101 - cutting table, 102 - bracket, 103 - electric slide rail 1, 104 - electric slider 1, 105 - electric slide rail 2, 106 - electric slider 2, 107 - mounting frame, 108 - limiting strip, 109 - moving block, 110 - servo motor, 111 - screw rod, 112 - laser cutting head, 113 - arc groove, 201 - hydraulic cylinder, 202 - lifting plate, 203 - ejector rod, 204 - rubber wheel, 205 - lifting port, 301 - chute, 302 - sliding plate, 303 - fixing block, 304 - vertical rod, 305 - first spring, 306 - clamping plate, 307 - limiting rod, 308 - sliding 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 - silica gel wheel, 506 - disc, 507 - spiral blade, 508 - support frame, 509 - laser rangefinder, 601 - support plate, 602 - fixing rod, 603 - retaining piece, 604 - second spring, 605 - pressure sensor. Detailed implementation manners

[0027] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0028] like Figures 1-8 As shown, a pipe cutting device for a space grid provided by an embodiment of the present invention includes a cutting table 101, and brackets 102 are fixedly provided on the upper surface of the cutting table 101 near both sides, and an electric slide rail 103 is fixedly installed on the top of the bracket 102, and an electric slider 104 is slidably connected to the upper side 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, and an electric slide rail 2 106 is slidably connected to the upper side of the electric slide rail 2 105, and a mounting frame 107 is fixedly provided on the outer side of the electric slider 2 106, and a limit strip 108 is fixedly installed in the mounting frame 107, and a moving block 109 is slidably provided between adjacent limit strips 108, and the top of the mounting frame 107 is fixed. A servo motor 110 is fixedly installed, and the driving end of the servo motor 110 is rotatably connected to a screw 111. A threaded hole is opened on the outer wall of the moving block 109, and the screw 111 is threadedly set 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, the lifting unit 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, the fixing unit 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, the rotation detection unit is arranged on one side of the cutting table 101, and is used to detect the rotation degree of the pipe.

[0029] The space grid includes two conventional accessories: frame pipes and connecting pipes. When the space grid is installed, the frame pipes are usually connected by welding with the help of 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, the ends of the connecting pipes need to be cut 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 equipment is used to cut pipes for space grids, the pipes to be cut are first placed in the arc grooves 113 on the surface of the cutting table 101. The arc grooves 113 can serve the purpose of initial positioning of the pipes to prevent the pipes from rolling on the surface of the cutting table 101. When the pipes 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 2 106 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, thereby enabling the laser cutting head 112 on one side of the moving block 109 to 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 pipe is cut by the laser cutting head 112 according to the preset cutting path. When performing the cutting operation, 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, under normal circumstances, there is no need to rotate the pipe, and the laser cutting head 112 is 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 between the side walls of the staggered frame pipes, and after the cutting angle of the pipe is adjusted, the fixing unit can still be The pipe is stably clamped to ensure that the laser cutting head 112 can also stably cut the other end of the pipe. Furthermore, the rotation detection unit can be used to detect the rotation degree of the pipe when the pipe is rotating to ensure that the rotation angle of the pipe is more accurate. The pipe is cut only when the pipe reaches the specified rotation angle, which can effectively improve the cutting accuracy. The pipe cutting equipment effectively realizes that the pipes of the same batch can be loaded synchronously, and then one end of the pipe is quickly cut 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 pipes of the same batch to rotate synchronously, and the stable clamping can still be maintained after rotation, and then the other end of the pipe is quickly cut one by one, which effectively realizes batch processing of pipes and greatly improves cutting efficiency.The effect will be better if you use it.

[0030] 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 fixed 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 openings 205 are 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 contraction 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 opening 205, and the pipe fittings in the arc groove 113 can be lifted up, and the pipe fittings are just confined between the rubber wheels 204, which plays a role in limiting the position of the pipe fittings. The symmetrically distributed rubber wheels 204 can realize the lifting operation of pipe fittings of different sizes, which is more flexible to use.

[0031] 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 both sides, a slide plate 302 is slidably provided 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 rotates between the splint 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 splint 306 to the pipe. When the pipe is lifted up, the pipe will be blocked by the splint 306, and the splint 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 can be clamped between the splint 306 and the rubber wheel 204, thereby fixing the pipe. The slide plate 302 can move flexibly in the slide groove 301, which is convenient for flexible adjustment of the clamping position according to needs, and the use effect is better.

[0032] As an embodiment of the present invention, please refer to Figure 5 and Figure 8The rotating assembly includes a sliding plate 308, an outer wall of the clamping plate 306 is provided with a mounting hole, and a limit rod 307 is fixedly provided in the mounting hole. 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 mounting holes, and a telescopic cylinder 310 is fixedly provided in the mounting hole. The telescopic end of the telescopic cylinder 310 is connected to the inner wall of the mounting hole. When the pipe is lifted up, the rubber sheet 309 on the lower surface of the sliding plate 308 is fixedly provided. The film 309 will replace the clamping plate 306 to contact the pipe, so that the pipe is clamped between the rubber wheel 204 and the rubber sheet 309. When the pipe needs to be rotated, the telescopic cylinder 310 can be extended and retracted 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 fits tightly with the pipe, when the sliding plate 308 moves, the pipe will rotate between the rubber sheet 309 and the rubber wheel 204, thereby achieving the purpose of rotating the pipe, which is very convenient to use.

[0033] 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, the top of the threaded rod 403 is fixedly installed with a turntable 402, and the bottom end of the threaded rod 403 is fixedly installed with a touch switch 404. When the splint 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 splint 306, realizing stable clamping while avoiding damage to the pipe fittings, and having a better use effect.

[0034] As an embodiment of the present invention, please refer to Figure 6 and Figure 7The rotation detection unit includes a bracket 501 fixedly arranged on one side of the cutting table 101 at an equal distance, and the bracket 501 corresponds to the arc groove 113. A support assembly is provided 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 provided in the sleeve 503, and a silicone wheel 505 is fixedly installed on the outer wall of the rotating shaft 504. A disk 506 is fixedly installed at the end of the rotating shaft 504, and a spiral blade 507 is fixedly provided on the outer wall of the disk 506. A support frame 508 is also fixedly provided on the lower surface of the sleeve 503, and a laser rangefinder 509 is provided at the end of the support frame 508. The laser rangefinder 509 is aligned with the screw. The rotating blade 507 is used to detect the distance change between the laser rangefinder 509 and the surface of the spiral blade 507. When the pipe is fixed, the sleeve 503 can be driven upward by the electric telescopic rod 502 to make the silicone wheel 505 fit against the pipe. When the pipe rotates, the silicone wheel 505 also rotates. The silicone wheel 505 can drive the rotating shaft 504 to rotate in the sleeve 503, so that the disc 506 at the end of the rotating shaft 504 and the spiral blade 507 rotate together. The laser rangefinder 509 detects the distance change between the laser rangefinder 509 and the surface of the spiral blade 507, so as to detect the rotation angle of the pipe, thereby ensuring that the rotation angle of the pipe is more accurate, effectively improving the cutting accuracy, and achieving better use effect.

[0035] 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 outside 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 outside of the fixed rod 602. The second spring 604 is located between the support plate 601 and the bracket 501. A pressure sensor 605 is also provided 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 exert a downward force on 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. This will prompt the electric telescopic rod 502 to stop extending and retracting, ensuring that the silicone wheel 505 exerts appropriate supporting force on the pipe fitting, so that the silicone wheel 505 can rotate with the pipe fitting while avoiding excessive supporting force that hinders the rotation of the pipe fitting, resulting in better use effect.

[0036] During use, the pipe fittings to be cut can be placed in the arc groove 113 on the surface of the cutting table 101. The arc groove 113 can be used to initially position the pipe fittings and prevent them from rolling on the surface of the cutting table 101. After the pipe fittings are placed, the pipe fittings in the arc groove 113 can be lifted by the lifting unit and clamped and fixed by the fixing unit. By sliding the electric slider 1 104 on the surface of the electric slide rail 1 103, the electric slide rail 2 105 can be driven to move left and right. By sliding the electric slider 2 106 on the surface of the electric slide rail 2 105, the mounting frame 107 can be driven to move back and forth. By driving the screw rod 111 to rotate through the servo motor 110, the moving block 109 can be driven to move up and down. As a result, the laser cutting head 112 on one side of the moving block 109 can be moved in the X, Y, and Z directions, enabling the laser cutting head 112 to quickly move to the position to be cut on the pipe fitting, making the laser beam perpendicular to the cutting surface of the pipe fitting, and cutting the pipe fitting according to the preset cutting path through the laser cutting head 112. During cutting, first cut the end of the pipe fitting away from the rotation detection unit, and cut the end of the pipe fitting into an arc surface that matches the frame pipe fitting. When the ends of the pipe fitting are cut one by one, usually, there is no need to rotate the pipe fitting, and the laser cutting head 112 can be directly controlled to cut the other end of the pipe fitting into the same arc surface. However, due to the staggered situation between the frame pipe fittings corresponding to the two ends of the connecting pipe fitting 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 also be adjusted, enabling the two ends of the connecting pipe fitting after cutting to effectively fit with the side walls of the staggered frame pipe fittings. 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. Further, when the pipe fitting rotates, the rotation detection unit can be used to detect the rotation degree of the pipe fitting to ensure that the rotation angle of the pipe fitting is more accurate. Only when the pipe fitting reaches the specified rotation angle is it cut, which can effectively improve the cutting accuracy. This pipe fitting cutting equipment effectively realizes that the pipe fittings of the same batch can be loaded synchronously, and then the ends of the pipe fittings are quickly cut one by one. When the cutting angle of the other end of the pipe fitting needs to be adjusted, the fixing unit can directly cause the pipe fittings of the same batch to rotate synchronously, and they can still be stably clamped after rotation, and then the other ends of the pipe fittings are quickly cut one by one, effectively realizing the batch processing of the pipe fittings, greatly improving the cutting efficiency, and having a better use effect.

[0037] It should be specifically noted that although this specification is described according to the implementation manners, not each implementation manner only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation manners 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, Brackets are fixedly arranged at positions near both sides of the upper surface of the cutting table, and an electric slide rail 1 is fixedly installed at the top of the bracket. An electric slider 1 is slidably connected above 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 above the electric slide rail 2, and a mounting frame is fixedly arranged on the outer side of the electric slider 2. A limiting strip is fixedly installed in the mounting frame, and a moving block is slidably arranged between adjacent limiting strips. A servo motor is fixedly installed at the top of the mounting frame, and a screw rod is rotatably connected to the driving end of the servo motor. A threaded hole is formed in the outer wall of the moving block, and the screw rod is threadedly arranged in the threaded hole. A laser cutting head is fixedly installed on the outer wall of the moving block. Further included are: A lifting unit, which is arranged below the cutting table and is used to synchronously lift the pipe fittings to be cut in the arc groove upward. The lifting unit includes a lifting plate movably arranged below the cutting table. Mounting holes are formed in the outer wall of the lifting plate, and a hydraulic cylinder is fixedly installed in the mounting holes. The telescopic end of the hydraulic cylinder is connected to the lower surface of the cutting table. A plurality of top rods that are symmetrically arranged in pairs and distributed in a rectangular array are also fixedly arranged on the upper surface of the lifting plate. Rubber wheels are fixedly installed at the tops of the top rods. Lifting ports corresponding to the top rods are formed in the outer wall of the cutting table, and the top rods are located in the lifting ports. The lifting ports are located on both sides of the arc groove. A fixing unit, which is arranged above the cutting table and is used to fix the pipe fittings to be cut lifted by the lifting unit and drive the pipe fittings to rotate between the fixing unit and the lifting unit. The fixing unit includes sliding grooves formed at positions near both sides of the upper surface of the cutting table. Sliding plates are slidably arranged in the sliding grooves, and fixing blocks are fixedly installed on the upper surfaces of the sliding plates. Vertical rods are fixedly installed on the upper surfaces of the fixing blocks, and clamping plates are sleeved on the outer sides of the vertical rods. 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 assembly is also arranged in the clamping plate and is used to drive the pipe fittings to rotate between the clamping plate and the rubber wheels. An adjusting assembly is also arranged at the top of the vertical rod and is used to adjust the clamping force applied by the clamping plate to the pipe fittings. The rotating assembly includes a sliding plate. Mounting ports are formed in the outer wall of the clamping plate, and limiting rods are fixedly arranged in the mounting ports. 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 formed at both ends of the sliding plate, and telescopic cylinders are fixedly arranged in the mounting holes. The telescopic ends of the telescopic cylinders are connected to the inner walls of the mounting ports. The adjusting assembly includes a top plate fixedly arranged at the top of the vertical rod, and a threaded rod is threadedly connected through the outer wall of the top plate. A turntable is fixedly installed at the top of the threaded rod, and a touch switch is fixedly installed at the bottom of the threaded rod. A rotation detection unit, which is arranged on one side of the cutting table and is used to detect the rotation degree of the pipe fittings.

2. The pipe fitting cutting device for a space grid according to claim 1, wherein, The rotation detection unit includes a bracket fixedly arranged on one side of the cutting table at equal distances, and the bracket corresponds to the arc groove. 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 at the telescopic end of the electric telescopic rod. A rotating shaft is rotatably arranged in the sleeve, and a silica gel wheel is fixedly installed on the outer wall of the rotating shaft. A disc is fixedly installed at 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 aligned with the spiral blade and is used to detect the change in the distance between the laser rangefinder and the surface of the spiral blade.

3. The pipe fitting cutting device for a space grid according to claim 2, wherein, 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 fixed rod is fixedly arranged in the bracket, and the support plate is sleeved on the outside of the fixed rod. A stop piece is fixedly arranged at the top of the fixed rod, and a second spring is sleeved on the outside of the fixed rod. The second spring is located between the support plate and the bracket. 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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