Polishing device and method for stainless steel pipe welding

Abstract

The invention belongs to the technical field of stainless steel pipe polishing, and discloses a polishing device for stainless steel pipe welding and a method thereof.The polishing device comprises a base, an annular mounting cylinder is fixedly mounted in the middle of the upper surface of the base, and an annular rotating block is movably mounted on the right side of an inner cavity of the mounting cylinder through a bearing; and two polishing blocks are symmetrically arranged on the upper side and the lower side of the inner ring of the rotating block. Through cooperative design of the driving mechanism, the rotating block, the grinding block and the adjusting mechanism, the grinding block can be driven to move to make contact with the surface of the weld beading of the stainless steel pipe for intermittent layer-by-layer grinding and polishing, the grinding block is not prone to bouncing under the reaction effect of contact with the surface of the weld beading during grinding, the grinding and polishing effect on the weld joint of the stainless steel pipe is good, and the efficiency is high. The problems that in the prior art, the surface of the stainless steel pipe is prone to being burnt due to high temperature generated during long-time contact, attachment and polishing of a polishing block, and the quality and attractiveness of the stainless steel pipe are prevented from being affected are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of stainless steel pipe polishing, in particular to a polishing device and a method for stainless steel pipe welding. Background Art

[0002] Stainless steel pipe is a widely used industrial material with the advantages of corrosion resistance, high temperature resistance and high strength. Stainless steel pipes usually need to be connected into the required shape or structure by welding. However, the welding process will produce welds on the surface of stainless steel pipes, which not only affect the appearance and finish of stainless steel pipes, but also easily cause stress concentration and corrosion, reducing the service life and performance of stainless steel pipes. Therefore, the welds of stainless steel pipes are usually polished and polished by polishing devices to eliminate the protrusions and burrs of the welds and improve the surface quality and flatness of stainless steel pipes.

[0003] In the prior art, a Chinese patent discloses a rapid polishing device for stainless steel pipe processing (publication number: CN216859198U), whose main structure includes a stainless steel pipe and an annular clamp seat, a bearing is coaxially fixed to the side of the annular clamp seat, and a shell is rotatably connected to the side of the annular clamp seat through the bearing, a driven gear is coaxially fixed to the side of the annular clamp seat, and a driving gear is meshed and connected to one side of the driven gear, and a support plate b is provided on one side of the driving gear, and a connecting shaft b rotatably connected to the support plate b is coaxially fixed to the driving gear, and a driving motor a is connected to the end of the connecting shaft b away from the driving gear, and a fixing mechanism is provided in the annular clamp seat, and the fixing mechanism is provided in multiple and annular distribution, a bottom plate is provided on one side of the annular clamp seat, and a moving mechanism is provided on the top of the bottom plate, and a connecting frame is slidably connected to the top of the bottom plate through the moving mechanism, and a driving motor b is fixed on the connecting frame, and a grinding wheel coaxially fixed to the output end of the driving motor b is provided on the top of the connecting frame, and the grinding wheel is provided on one side of the stainless steel pipe.

[0004] In actual use, the above patent drives the gear to rotate by rotating the connecting shaft a, and the gear drives the rack plate to slide in the slide groove, thereby driving the connecting frame to move slowly on the top of the bottom plate, driving the grinding wheel on the top of the connecting frame to approach the weld on the outer surface of the stainless steel pipe, and starting the driving motor b to work. The driving motor b drives the grinding wheel to rotate slowly and fit to the weld on the outer surface of the stainless steel pipe to quickly grind and polish the weld, eliminating the need to hold the stainless steel pipe manually to grind and polish the weld. However, there are still corresponding disadvantages in actual use: the weld nodules at the weld are of different thicknesses and unevenness. When the above patent is used, the operator continuously The grinding wheel is manually controlled to approach the weld on the outer surface of the stainless steel pipe and squeeze and fit with the weld nodule surface. When the grinding wheel rotates to grind the weld nodule, the reaction force of the grinding wheel and the weld nodule surface squeezing each other can easily cause the grinding wheel to jump and separate from the weld nodule surface, reducing the polishing effect on the stainless steel pipe weld. At the same time, the prior art also controls the movement of the grinding wheel by a hydraulic propulsion device (such as a hydraulic cylinder). Although the grinding wheel can always keep in contact and fit with the weld nodule surface during the rotational grinding process, the high temperature generated during long-term contact and fitting grinding can easily burn the surface of the stainless steel pipe, which can easily affect the quality and aesthetics of the stainless steel pipe. Summary of the invention

[0005] In order to solve the problems raised in the above-mentioned background technology, the present invention provides a polishing device and method for stainless steel pipe welding, which have the advantages of convenient operation, good polishing effect, and not easy to affect the quality and aesthetics. Through the coordinated design of structures such as the driving mechanism, the rotating block, the grinding block, and the adjustment mechanism, the grinding block can be driven to move and contact the surface of the weld nodule of the stainless steel pipe for intermittent layer-by-layer grinding and polishing. The grinding block is not easy to rebound and jump under the reaction of contact with the weld nodule surface during grinding, and the grinding and polishing effect on the stainless steel pipe weld is good, and it is not easy to affect the quality and aesthetics of the stainless steel pipe.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a polishing device for stainless steel pipe welding, comprising a base, an annular mounting cylinder is fixedly mounted on the middle of the upper surface of the base, an annular rotating block is movably mounted on the right side of the inner cavity of the mounting cylinder through a bearing, two grinding blocks are symmetrically arranged on the upper and lower sides of the inner ring of the rotating block, a driving mechanism for driving the rotating block to rotate is arranged on the right side of the outer surface of the mounting cylinder, an adjusting mechanism for driving the grinding block to move and contact with the weld nodule on the outer surface of the stainless steel pipe is arranged on the left side of the inner cavity of the mounting cylinder, and two clamps for fixing the stainless steel pipe are symmetrically arranged on the left and right sides of the upper surface of the base; The adjusting mechanism comprises an annular mounting block arranged in the inner cavity of the mounting cylinder and located on the left side of the rotating block, an annular connecting frame is provided on the right side of the outer surface of the annular mounting block through a bearing movable sleeve, an annular connecting shell is slidably mounted on the outer ring of the annular connecting frame, three docking blocks that slide up and down are horizontally distributed side by side on the upper part of the inner cavity of the annular connecting shell, and two mounting cavities are symmetrically provided on the upper and lower sides of the rotating block, a docking rod is vertically slidably mounted on the side of the inner cavity of the mounting cylinder close to the inner cavity of the mounting cylinder, a moving block is vertically slidably mounted on the side of the inner cavity of the mounting cylinder away from the inner cavity of the mounting cylinder, a two-stage telescopic rod is fixedly mounted on the right side wall of the moving block, and a mounting shell is fixedly mounted on the right end of the two-stage telescopic rod, a transmission mechanism for driving the annular mounting block to rotate and move is arranged in the left side of the rotating block and the inner cavity of the mounting cylinder, a limiting mechanism is arranged in the left side of the rotating block and the inner cavity of the mounting cavity, and a wax spraying mechanism is arranged on the inner cavity of the moving block and the mounting shell; In which, the outer surface of the annular connecting shell is fixedly connected to the inner cavity of the mounting cylinder, one end of the docking rod passes through the outside of the inner cavity of the mounting cavity, and a ball is movably installed on one end of the docking rod, the outer surface of the ball is movably connected to the bottom surface of the docking block, and the other end of the docking rod is provided with a connecting piece, and two compression spring seats are symmetrically and vertically fixedly installed on one side of the inner cavity of the mounting cavity away from the inner cavity of the mounting cylinder, the output end of the compression spring seat is fixedly connected to the outer surface of the moving block, the outer surface of the mounting shell is slidably connected to the inner ring of the rotating block through a vertically fixed connecting rod, and the outer surface of the grinding block is fixedly connected to the inner cavity of the mounting shell.

[0007] In the above technical solution, preferably, the driving mechanism includes a driving ring fixedly mounted on the outer ring of the rotating block, a driving motor fixedly mounted on the upper outer surface of the mounting cylinder, and a driving wheel fixedly mounted on the output shaft end of the driving motor for driving the driving ring to rotate.

[0008] In the above technical solution, preferably, the transmission mechanism includes two screws symmetrically installed on the left side wall of the rotating block through bearings for driving the annular mounting block to move and rotate, an annular track fixedly installed on the left side of the inner cavity of the mounting cylinder, and a roller fixedly sleeved on the left end of the screw; wherein the outer ring of the roller is movably connected to the inner ring of the annular track.

[0009] In the above technical scheme, preferably, the limiting mechanism includes two limiting clamps symmetrically distributed on the front and rear sides of the inner cavity of the installation cavity, two spring clamps symmetrically fixedly installed on the lower parts of the front and rear sides of the moving block, and an extrusion rod arranged between the limiting clamp and the inner cavity of the installation cavity; wherein, the spring clamp is adapted to the limiting clamp, one side of the outer surface of the extrusion rod is movably connected to one side of the outer surface of the limiting clamp, the right end of the extrusion rod is fixedly connected to the left side wall of the rotating block, and the outer surface of the limiting clamp is connected to the inner cavity of the installation cavity through two first tension spring rods symmetrically distributed up and down.

[0010] In the above technical solution, preferably, three screws are installed on the upper surface of the annular connecting shell in a transversely equidistant threaded manner, the bottom end of the screw is movably connected to the upper surface of the docking block through a bearing, and the top end of the screw passes through the top of the mounting tube.

[0011] In the above technical solution, preferably, the connecting member includes a connecting plate arranged between the docking rod and the moving block, and two second tension spring rods symmetrically arranged between the inner cavity of the installation cavity close to the inner cavity of the installation tube and the outer surface of the connecting plate; wherein the outer surface of the connecting plate is movably connected to the outer surface of the moving block, and the elastic force of the second tension spring rods can drive the connecting plate away from the moving block.

[0012] In the above technical solution, preferably, the clamp includes columns symmetrically and vertically fixedly installed on the left and right sides of the upper surface of the base, an annular placement shell is fixedly installed on the top of the column, two electric telescopic rods are symmetrically arranged in the inner cavity of the placement shell, and a clamping block for clamping the stainless steel pipe is fixedly installed at the output end of the electric telescopic rod.

[0013] In the above technical solution, preferably, the wax spraying mechanism includes an assembly shell fixedly installed in the inner cavity of the moving block, a connecting cavity provided in the inner cavity of the assembly shell close to the connecting piece, a dust collecting chamber provided on the right side of the connecting cavity, a dust collecting bag fixedly installed in the inner cavity of the dust collecting chamber, dust suction holes provided on two opposite surfaces of the assembly shells, a dust suction hose for connecting the dust suction holes with the dust collecting bag, an air pushing block that moves up and down in the connecting cavity and is used to transport the air in the dust collecting chamber to the inner cavity of the assembly shell, nozzles symmetrically fixedly installed on the front and rear side walls of the installation shell, and a wax spraying hose for connecting the nozzles with the inner cavity of the assembly shell; One end of the air pushing block extends outside the inner cavity of the communication cavity, and one end of the air pushing block is fixedly connected to the connecting piece. The air in the dust collection cavity is introduced into the communication cavity through a one-way intake valve, and the air in the communication cavity is introduced into the inner cavity of the assembly shell through a one-way outlet valve. A "U"-shaped sealing plate is slidably installed up and down in the inner cavity of the assembly shell. The side wall of the sealing plate can block the left port of the wax spraying hose. A vertical rod is fixedly installed on the outer surface of the sealing plate away from the communication cavity. One end of the vertical rod penetrates outside the inner cavity of the moving block, and one end of the vertical rod is movably connected to the inner cavity of the installation cavity. A spring sleeve is fixedly sleeved on the outer surface of the vertical rod, and the other end of the spring sleeve is fixedly connected to the outer surface of the moving block.

[0014] A polishing method for stainless steel pipe welding includes the following usage steps: S1: Pass the stainless steel pipe to be polished through the inner cavities of the rotating block, the annular mounting block and the fixture, so that the weld of the stainless steel pipe is located between the two grinding blocks, and clamp and fix the stainless steel pipe through the fixture; S2: The operator can adjust the height position of the docking block through the screw rod, so that the height positions of the three docking blocks decrease one by one from left to right; S3: Start the driving motor to operate and drive the driving wheel to rotate. When the driving wheel rotates, it can drive the driving ring to drive the rotating block to rotate. When the rotating block rotates, it can drive the two grinding blocks to rotate. At the same time, when the rotating block rotates, it can drive the two lead screws to move circumferentially. When the lead screws move circumferentially, they can drive the annular mounting block to rotate. At the same time, under the action of the rollers and the annular track, the lead screws can rotate when moving circumferentially. When the lead screws rotate, they can drive the annular mounting block to move, so that the annular mounting block can rotate while moving. When the annular mounting block moves to the right, it can drive the limit card plate to move. Under the action of the extrusion rod, the limit card plate can be combined with the spring catch to limit the moving block, so that the moving block can only move towards the direction of the stainless steel pipe. During the process of the annular mounting block moving to the right and rotating, it can drive the docking rod to move and rotate circumferentially at the same time. When the docking rod moves, it drives the balls to contact the bottom surfaces of the three docking blocks in sequence. When the balls contact the three docking blocks in sequence, the docking rod can drive the connecting piece to move and push the moving block to approach the stainless steel pipe intermittently. The moving block can drive the installation shell to drive the grinding block to move and contact the surface of the stainless steel pipe weld bead through the two-stage telescopic rod for intermittent layer-by-layer grinding and polishing; S4: When the ball contacts and interacts with the bottom surface of the docking block, the ball drives the docking rod to drive the connecting piece to move, and the connecting piece moves to drive the air pushing block to move. When the air pushing block moves, under the action of the one-way air inlet valve and the one-way air outlet valve, negative pressure can be generated in the connecting cavity, so that the debris particles generated during grinding can be sucked into the dust collecting bag through the dust collecting cavity, the dust suction hose and the dust suction hole, and the sucked air can be compressed into the assembly shell. When the ball contacts and interacts with the bottom surface of the docking block on the far right, the moving block can be further approached to the stainless steel pipe. At this time, the side wall of the sealing plate is separated from the left port of the wax spray hose, and the compressed air in the assembly shell can transport the polishing wax oil to the nozzle and spray it onto the weld of the stainless steel pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention adopts the coordinated design of structures such as a driving mechanism, a rotating block, a grinding block, and an adjusting mechanism. The driving mechanism drives the rotating block to rotate. When the rotating block rotates, it drives the two grinding blocks to move circumferentially to grind and polish the weld nodules at the weld seams of the stainless steel pipes. At the same time, when the rotating block rotates, the transmission mechanism drives the annular mounting block to move rightward and rotate. During the movement and rotation of the annular mounting block, the docking rod can be driven to move and rotate circumferentially at the same time. When the docking rod moves, it drives the ball bearings to contact the bottom surfaces of the three docking blocks in sequence. Under the limiting action of the limiting mechanism on the moving block, when the ball bearings contact the bottom surfaces of the three docking blocks, When the bottom surfaces contact in sequence, the docking rod can drive the connecting piece to move and push the moving block to intermittently approach the stainless steel pipe. The moving block can drive the mounting shell through the two-stage telescopic rod to drive the grinding block to move and contact the surface of the weld nodule of the stainless steel pipe for intermittent layer-by-layer grinding and polishing. The grinding block is not easy to rebound and bounce under the reaction of contact with the surface of the weld nodule during grinding. The grinding and polishing effect of the stainless steel pipe weld is good. The grinding block intermittently grinds and polishes the weld nodule layer by layer, which can avoid the high temperature generated by the long-term contact and fitting grinding of the grinding block, which can easily burn the surface of the stainless steel pipe, thereby avoiding affecting the quality and aesthetics of the stainless steel pipe.

[0016] 2. The present invention adopts the coordinated design of structures such as ball bearing, docking rod, connecting piece, moving block and wax spraying mechanism. When the ball bearing contacts and interacts with the bottom surface of the docking block, the ball bearing drives the docking rod to drive the connecting piece to move, and the connecting piece moves to drive the air pushing block to move. When the air pushing block moves, under the action of the one-way air inlet valve and the one-way air outlet valve, negative pressure can be generated in the connecting cavity, so that the debris particles generated during grinding can be sucked into the dust collecting bag through the dust collecting cavity, the dust suction hose and the dust suction hole for collection, thereby improving environmental protection and at the same time being able to compress the sucked air into the assembly shell. When the ball bearing contacts and interacts with the bottom surface of the rightmost docking block, the moving block can be further approached to the stainless steel pipe. At this time, the side wall of the sealing plate is separated from the left port of the wax spraying hose, and the compressed air in the assembly shell can transport the polishing wax oil to the nozzle and spray it onto the stainless steel pipe weld, thereby improving the polishing efficiency and avoiding the problem that the operator needs to manually apply wax oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a front cross-sectional structural schematic diagram of the installation tube of the present invention; Figure 3 It is a front cross-sectional structural schematic diagram of the mounting tube of the present invention from another angle; Figure 4 This is a structural exploded view of the annular mounting block, the annular mounting frame, and the annular connecting shell of the present invention; Figure 5 It is a schematic diagram of the structure of the driving mechanism, the rotating block, the annular mounting block and the transmission mechanism of the present invention; Figure 6 It is a right side structural schematic diagram of the limiting mechanism of the present invention; Figure 7 It is a partial front cross-sectional structural schematic diagram of the mounting cylinder, the adjusting mechanism, the rotating block, and the grinding block of the present invention; Figure 8 It is a front cross-sectional structural schematic diagram of the annular mounting block of the present invention; Fig. 9 It is a partial front cross-sectional structural schematic diagram of the wax spraying mechanism of the present invention.

[0018] In the figure: 1, base; 2, mounting tube; 3, rotating block; 4, grinding block; 5, driving mechanism; 51, driving ring; 52, driving motor; 53, driving wheel; 6, adjusting mechanism; 7, clamp; 61, annular mounting block; 62, annular connecting frame; 63, annular connecting shell; 64, docking block; 65, mounting cavity; 66, docking rod; 67, moving block; 68, two-stage telescopic rod; 69, mounting shell; 610, ball bearing; 611, compression spring seat; 8, transmission mechanism; 81, screw rod; 82. Annular track; 83. Roller; 9. Limiting mechanism; 91. Limiting card plate; 92. Spring card block; 93. Extrusion rod; 94. First tension spring rod; 10. Wax spraying mechanism; 101. Assembly shell; 102. Connecting cavity; 103. Dust collecting cavity; 104. Dust collecting bag; 105. Dust suction hole; 106. Dust suction hose; 107. Pushing air block; 108. Nozzle; 109. Wax spraying hose; 11. Connecting piece; 12. Screw; 13. Vertical rod; 14. Spring sleeve; 15. Sealing plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] like Figures 1 to 9 As shown, the present invention provides a polishing device for stainless steel pipe welding, comprising a base 1, a ring-shaped mounting cylinder 2 is fixedly mounted in the middle of the upper surface of the base 1, a ring-shaped rotating block 3 is movably mounted on the right side of the inner cavity of the mounting cylinder 2 through a bearing, two grinding blocks 4 are symmetrically arranged on the upper and lower sides of the inner ring of the rotating block 3, a driving mechanism 5 for driving the rotating block 3 to rotate is arranged on the right side of the outer surface of the mounting cylinder 2, an adjusting mechanism 6 for driving the grinding block 4 to move and contact with the weld nodule on the outer surface of the stainless steel pipe is arranged on the left side of the inner cavity of the mounting cylinder 2, and two clamps 7 for fixing the stainless steel pipe are symmetrically arranged on the left and right sides of the upper surface of the base 1; The adjustment mechanism 6 includes an annular mounting block 61 arranged in the inner cavity of the mounting cylinder 2 and located on the left side of the rotating block 3. An annular connecting frame 62 is provided on the right side of the outer surface of the annular mounting block 61 through a bearing movable sleeve. An annular connecting shell 63 is slidably installed on the outer ring of the annular connecting frame 62. Three docking blocks 64 that slide up and down are horizontally arranged side by side on the upper part of the inner cavity of the annular connecting shell 63. Two mounting cavities 65 are symmetrically provided on the upper and lower sides of the rotating block 3. A docking rod 66 is vertically slidably installed on one side of the inner cavity of the mounting cavity 65 close to the inner cavity of the mounting cylinder 2. A moving block 67 is vertically slidably installed on one side of the inner cavity of the installation cavity 65 away from the inner cavity of the installation cylinder 2, a two-stage telescopic rod 68 is fixedly installed on the right side wall of the moving block 67, and a mounting shell 69 is fixedly installed on the right end of the two-stage telescopic rod 68. A transmission mechanism 8 for driving the annular mounting block 61 to rotate and move is arranged on the left side of the rotating block 3 and the inner cavity of the installation cylinder 2, a limiting mechanism 9 is arranged on the left side of the rotating block 3 and the inner cavity of the installation cavity 65, and a wax spraying mechanism 10 is arranged on the inner cavity of the moving block 67 and the mounting shell 69; Among them, the outer surface of the annular connecting shell 63 is fixedly connected to the inner cavity of the mounting tube 2, one end of the docking rod 66 passes through the outside of the inner cavity of the mounting cavity 65, and a ball 610 is movably installed on one end of the docking rod 66, and the outer surface of the ball 610 is movably connected to the bottom surface of the docking block 64, and the other end of the docking rod 66 is provided with a connecting piece 11, and two compression spring seats 611 are symmetrically and vertically fixedly installed on one side of the inner cavity of the mounting cavity 65 away from the inner cavity of the mounting tube 2, and the output end of the compression spring seat 611 is fixedly connected to the outer surface of the moving block 67, and the outer surface of the mounting shell 69 is slidingly connected to the inner ring of the rotating block 3 through a vertically fixed connecting rod, and the outer surface of the grinding block 4 is fixedly connected to the inner cavity of the mounting shell 69.

[0021] When in use, the stainless steel pipe to be polished is passed through the inner cavity of the rotating block 3, the annular mounting block 61 and the clamp 7, so that the weld of the stainless steel pipe is located between the two grinding blocks 4, and the stainless steel pipe is clamped and fixed by the clamp 7, and then the height positions of the three docking blocks 64 are adjusted in sequence, so that the height position of the docking block 64 on the right is lower than the height position of the docking block 64 on the left, and the rotating block 3 is driven to rotate by the driving mechanism 5. When the rotating block 3 rotates, the two grinding blocks 4 are driven to move circumferentially to grind and polish the weld nodules at the weld of the stainless steel pipe. At the same time, when the rotating block 3 rotates, the annular mounting block 61 is driven to move to the right and rotate through the transmission mechanism 8. In the process of the annular mounting block 61 moving to the right and rotating, it can drive the docking rod 66 to move and rotate circumferentially, and the docking rod 66 drives the roller when it moves. The ball 610 contacts the bottom surfaces of the three docking blocks 64 in sequence. Under the limiting action of the limiting mechanism 9 on the moving block 67, when the ball 610 contacts the three docking blocks 64 in sequence, the docking rod 66 can drive the connecting piece 11 to move and push the moving block 67 to intermittently approach the stainless steel pipe. The moving block 67 can drive the mounting shell 69 through the two-stage telescopic rod 68 to drive the grinding block 4 to move and contact the surface of the weld nodule of the stainless steel pipe for intermittent layer-by-layer grinding and polishing. The grinding block 4 is not easy to rebound and jump under the reaction of contact with the surface of the weld nodule during grinding, and has a good effect on the grinding and polishing of the stainless steel pipe weld. The grinding block 4 intermittently grinds and polishes the weld nodule layer by layer, which can avoid the high temperature generated by the long-term contact and fitting grinding of the grinding block 4, which can easily burn the surface of the stainless steel pipe and affect the quality and aesthetics of the stainless steel pipe.

[0022] It should be noted that when the moving block 67 drives the grinding block 4 to intermittently grind and polish the surface of the stainless steel pipe weld nodule layer by layer, the wax spraying mechanism 10 can collect the debris particles generated by the grinding, thereby improving environmental protection. At the same time, in the final grinding stage, the polishing wax oil can be automatically sprayed onto the grinding and polishing area of ​​the stainless steel pipe weld, thereby improving the polishing efficiency and avoiding the need for the operator to manually apply wax oil.

[0023] like Figure 5 As shown, the driving mechanism 5 includes a driving ring 51 fixedly mounted on the outer ring of the rotating block 3, a driving motor 52 fixedly mounted on the upper outer surface of the mounting cylinder 2, and a driving wheel 53 fixedly mounted on the output shaft end of the driving motor 52 for driving the driving ring 51 to rotate.

[0024] When in use, the driving motor 52 drives the driving wheel 53 to rotate. When the driving wheel 53 rotates, it can drive the driving ring 51 to drive the rotating block 3 to rotate, so that when the rotating block 3 rotates, it can drive the two grinding blocks 4 to rotate to grind and polish the weld nodules at the welds of the stainless steel pipes.

[0025] like Figure 5As shown, the transmission mechanism 8 includes two screw rods 81 symmetrically mounted on the left side wall of the rotating block 3 through bearings for driving the annular mounting block 61 to move and rotate, an annular track 82 fixedly mounted on the left side of the inner cavity of the mounting cylinder 2, and a roller 83 fixedly sleeved on the left end of the screw rod 81; wherein the outer ring of the roller 83 is movably connected to the inner ring of the annular track 82.

[0026] When in use, when the rotating block 3 rotates, it can drive the two screw rods 81 to move circumferentially. When the screw rods 81 move circumferentially, they can drive the annular mounting block 61 to rotate. At the same time, under the action of the roller 83 and the annular track 82, the screw rod 81 can rotate when it moves circumferentially. When the screw rod 81 rotates, it can drive the annular mounting block 61 to move, so that the annular mounting block 61 can rotate while moving.

[0027] like Figure 6 As shown, the limiting mechanism 9 includes two limiting clamps 91 symmetrically distributed on the front and rear sides of the inner cavity of the installation cavity 65, two spring clamps 92 symmetrically fixedly installed on the lower parts of the front and rear sides of the moving block 67, and an extrusion rod 93 arranged between the limiting clamp 91 and the inner cavity of the installation cavity 65; wherein, the spring clamp 92 is adapted to the limiting clamp 91, one side of the outer surface of the extrusion rod 93 is movably connected to one side of the outer surface of the limiting clamp 91, the right end of the extrusion rod 93 is fixedly connected to the left side wall of the rotating block 3, and the outer surface of the limiting clamp 91 is connected to the inner cavity of the installation cavity 65 through two first tension spring rods 94 symmetrically distributed up and down.

[0028] When in use, when the annular mounting block 61 moves to the right, it can drive the limit clamp plate 91 to move. Under the action of the extrusion rod 93, the limit clamp plate 91 can be combined with the spring clamp block 92, so as to limit the moving block 67 and enable the moving block 67 to move only in the direction of the stainless steel pipe.

[0029] like Figure 7 As shown, three screw rods 12 are installed on the upper surface of the annular connecting shell 63 in a transversely equidistant threaded manner. The bottom end of the screw rod 12 is movably connected to the upper surface of the docking block 64 through a bearing, and the top end of the screw rod 12 penetrates to the top of the installation cylinder 2.

[0030] When in use, the operator can adjust the height position of the docking block 64 through the screw 12, so that the height positions of the three docking blocks 64 are lowered one by one from left to right, so that the grinding block 4 can be moved three times to perform intermittent grinding and polishing on the weld nodules of the stainless steel pipe.

[0031] like Figure 8As shown, the connecting member 11 includes a connecting plate arranged between the docking rod 66 and the moving block 67, and two second tension spring rods symmetrically arranged between the inner cavity of the mounting cavity 65, close to the inner cavity of the mounting tube 2, and the outer surface of the connecting plate; wherein the outer surface of the connecting plate is movably connected to the outer surface of the moving block 67, and the elastic force of the second tension spring rods can drive the connecting plate away from the moving block 67.

[0032] When in use, driven by the elastic force of the second tension spring rod, the ball 610 is easily brought into contact with the bottom surface of the docking block 64. When the ball 610 interacts with the bottom surface of the docking block 64, the ball 610 can drive the docking rod 66 to move. When the docking rod 66 moves, it can push the moving block 67 to move through the connecting plate.

[0033] like Figure 1 As shown, the clamp 7 includes columns symmetrically and vertically fixedly installed on the left and right sides of the upper surface of the base 1, an annular placement shell is fixedly installed on the top of the column, two electric telescopic rods are symmetrically arranged in the inner cavity of the placement shell, and a clamping block for clamping the stainless steel pipe is fixedly installed at the output end of the electric telescopic rod.

[0034] When in use, the electric telescopic rod can drive the clamping block to move, and the two clamping blocks can be brought close to each other to clamp and fix the stainless steel pipe.

[0035] like Figure 8 and Fig. 9 As shown, the wax spraying mechanism 10 includes an assembly shell 101 fixedly mounted in the inner cavity of the moving block 67, the inner cavity of the assembly shell 101 is injected with polishing wax oil, a connecting cavity 102 is provided in the inner cavity of the assembly shell 101 close to the connecting piece 11, a dust collecting cavity 103 is provided on the right side of the connecting cavity 102, a dust collecting bag 104 fixedly mounted in the inner cavity of the dust collecting cavity 103, dust suction holes 105 are provided on opposite surfaces of the two mounting shells 69, a dust suction hose 106 for connecting the dust suction holes 105 with the dust collecting bag 104, an air pushing block 107 that moves up and down in the connecting cavity 102 and is used to transport the air in the inner cavity of the dust collecting cavity 103 to the inner cavity of the assembly shell 101, a nozzle 108 is symmetrically fixedly mounted on the front and rear side walls of the mounting shell 69, and a wax spraying hose 109 is used to connect the nozzle 108 with the inner cavity of the assembly shell 101; Among them, one end of the air pushing block 107 extends outside the inner cavity of the communication cavity 102, and one end of the air pushing block 107 is fixedly connected to the connecting member 11. The air in the dust collection cavity 103 is introduced into the communication cavity 102 through a one-way intake valve, and the air in the communication cavity 102 is introduced into the inner cavity of the assembly shell 101 through a one-way exhaust valve. A "U"-shaped sealing plate 15 is slidably installed up and down in the inner cavity of the assembly shell 101. The side wall of the sealing plate 15 can block the left port of the wax spraying hose 109. A vertical rod 13 is fixedly installed vertically on the outer surface of the sealing plate 15 on the side away from the communication cavity 102. One end of the vertical rod 13 penetrates outside the inner cavity of the moving block 67, and one end of the vertical rod 13 is movably connected to the inner cavity of the installation cavity 65. A spring sleeve 14 is fixedly sleeved on the outer surface of the vertical rod 13, and the other end of the spring sleeve 14 is fixedly connected to the outer surface of the moving block 67.

[0036] During use, when the ball 610 contacts and interacts with the bottom surface of the docking block 64, the ball 610 drives the docking rod 66 to drive the connecting member 11 to move. When the connecting member 11 moves to drive the air pushing block 107 to move, under the action of the one-way intake valve and the one-way exhaust valve, a negative pressure can be generated in the communication cavity 102, so that the debris particles generated during grinding can be sucked into the dust collection bag 104 through the dust collection cavity 103, the dust suction hose 106 and the dust suction hole 105 for collection. At the same time, the inhaled air can be compressed into the assembly shell 101. When the ball 610 contacts and interacts with the bottom surface of the rightmost docking block 64, the moving block 67 can be further close to the stainless steel pipe. At this time, the side wall of the sealing plate 15 is separated from the left port of the wax spraying hose 109, and the compressed air in the assembly shell 101 can transport the polishing wax oil to the nozzle 108 and spray it onto the weld of the stainless steel pipe.

[0037] A polishing method for stainless steel pipe welding includes the following use steps: S1: Pass the stainless steel pipe to be polished through the inner cavities of the rotating block 3, the annular mounting block 61 and the fixture 7, so that the weld of the stainless steel pipe is located between the two grinding blocks 4, and clamp and fix the stainless steel pipe through the fixture 7; S2: The operator can adjust the height position of the docking block 64 through the screw rod 12, so that the height positions of the three docking blocks 64 decrease one by one from left to right; S3: Start the driving motor 52 to drive the driving wheel 53 to rotate. When the driving wheel 53 rotates, it can drive the driving ring 51 to drive the rotating block 3 to rotate. When the rotating block 3 rotates, it can drive the two grinding blocks 4 to rotate. At the same time, when the rotating block 3 rotates, it can drive the two screw rods 81 to move circumferentially. When the screw rod 81 moves circumferentially, it can drive the annular mounting block 61 to rotate. At the same time, under the action of the roller 83 and the annular track 82, the screw rod 81 can rotate when it moves circumferentially. When the screw rod 81 rotates, it can drive the annular mounting block 61 to move, so that the annular mounting block 61 can rotate while moving. When the annular mounting block 61 moves to the right, it can drive the limit clamping plate 91 to move. Under the action of the extrusion rod 93, The limit clamping plate 91 is combined with the spring clamping block 92 to limit the moving block 67, so that the moving block 67 can only move in the direction of the stainless steel pipe. When the annular mounting block 61 moves to the right and rotates, it can drive the docking rod 66 to move and rotate circumferentially. When the docking rod 66 moves, it drives the ball 610 to contact the bottom surfaces of the three docking blocks 64 in sequence. When the ball 610 contacts the three docking blocks 64 in sequence, the docking rod 66 drives the connecting piece 11 to move and push the moving block 67 to intermittently approach the stainless steel pipe. The moving block 67 can drive the mounting shell 69 through the two-stage telescopic rod 68 to drive the grinding block 4 to move and contact the surface of the stainless steel pipe weld nodule for intermittent layer-by-layer grinding and polishing. S4: When the ball 610 interacts with the bottom surface of the docking block 64, the ball 610 drives the docking rod 66 to drive the connecting piece 11 to move, and the connecting piece 11 moves to drive the air pushing block 107 to move. When the air pushing block 107 moves, under the action of the one-way air inlet valve and the one-way air outlet valve, a negative pressure can be generated in the connecting chamber 102, so that the debris particles generated during grinding can be sucked into the dust collecting bag 104 through the dust collecting chamber 103, the dust suction hose 106 and the dust suction hole 105 for collection, and the sucked air can be compressed into the assembly shell 101. When the ball 610 interacts with the bottom surface of the docking block 64 on the far right, the moving block 67 can be further approached to the stainless steel pipe. At this time, the side wall of the sealing plate 15 is separated from the left port of the wax spray hose 109, and the compressed air in the assembly shell 101 can transport the polishing wax oil to the nozzle 108 and spray it onto the weld of the stainless steel pipe.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polishing device for stainless steel pipe welding, It is characterized in that The invention comprises a base (1), wherein an annular mounting cylinder (2) is fixedly mounted in the middle of the upper surface of the base (1), an annular rotating block (3) is movably mounted on the right side of the inner cavity of the mounting cylinder (2) via a bearing, two grinding blocks (4) are symmetrically arranged on the upper and lower sides of the inner ring of the rotating block (3), a driving mechanism (5) for driving the rotating block (3) to rotate is arranged on the right side of the outer surface of the mounting cylinder (2), an adjusting mechanism (6) for driving the grinding block (4) to move and contact with the weld nodule on the outer surface of the stainless steel pipe is arranged on the left side of the inner cavity of the mounting cylinder (2), and two clamps (7) for fixing the stainless steel pipe are symmetrically arranged on the left and right sides of the upper surface of the base (1); The adjusting mechanism (6) comprises an annular mounting block (61) arranged in the inner cavity of the mounting tube (2) and located on the left side of the rotating block (3); an annular connecting frame (62) is provided on the right side of the outer surface of the annular mounting block (61) via a bearing movable sleeve; an annular connecting shell (63) is slidably mounted on the outer ring of the annular connecting frame (62); three docking blocks (64) are horizontally arranged side by side in the upper part of the inner cavity of the annular connecting shell (63) and slide up and down; two mounting cavities (65) are symmetrically provided on the upper and lower sides of the rotating block (3); a docking rod (66) is vertically slidably mounted on one side of the inner cavity of the mounting tube (2); A moving block (67) is vertically slidably mounted on one side of the inner cavity of the mounting cavity (65) away from the inner cavity of the mounting tube (2); a two-section telescopic rod (68) is fixedly mounted on the right side wall of the moving block (67); a mounting shell (69) is fixedly mounted on the right end of the two-section telescopic rod (68); a transmission mechanism (8) for driving the annular mounting block (61) to rotate and move is arranged on the left side of the rotating block (3) and in the inner cavity of the mounting tube (2); a limiting mechanism (9) is arranged on the left side of the rotating block (3) and in the inner cavity of the mounting cavity (65); and a wax spraying mechanism (10) is arranged on the inner cavity of the moving block (67) and the mounting shell (69); The outer surface of the annular connecting shell (63) is fixedly connected to the inner cavity of the mounting cylinder (2); one end of the docking rod (66) extends through the inner cavity of the mounting cavity (65); a ball (610) is movably mounted on one end of the docking rod (66); the outer surface of the ball (610) is movably connected to the bottom surface of the docking block (64); the other end of the docking rod (66) is provided with a connecting piece (11); two compression spring seats (611) are symmetrically and vertically fixedly mounted on one side of the inner cavity of the mounting cavity (65) away from the inner cavity of the mounting cylinder (2); the output end of the compression spring seat (611) is fixedly connected to the outer surface of the moving block (67); the outer surface of the mounting shell (69) is slidably connected to the inner ring of the rotating block (3) via a vertically fixed connecting rod; and the outer surface of the grinding block (4) is fixedly connected to the inner cavity of the mounting shell (69).

2. A polishing device for stainless steel pipe welding according to claim 1, Features: The driving mechanism (5) comprises a driving ring (51) fixedly sleeved on the outer ring of the rotating block (3), a driving motor (52) fixedly mounted on the upper portion of the outer surface of the mounting cylinder (2), and a driving wheel (53) fixedly sleeved on the output shaft end of the driving motor (52) for driving the driving ring (51) to rotate.

3. A polishing device for stainless steel pipe welding according to claim 1, Features: The transmission mechanism (8) comprises two screw rods (81) symmetrically mounted on the left side wall of the rotating block (3) through bearings for driving the annular mounting block (61) to move and rotate, an annular track (82) fixedly mounted on the left side of the inner cavity of the mounting cylinder (2), and a roller (83) fixedly sleeved on the left end of the screw rod (81); wherein the outer ring of the roller (83) is movably connected to the inner ring of the annular track (82).

4. A polishing device for stainless steel pipe welding according to claim 1, Features: The limiting mechanism (9) comprises two limiting clamping plates (91) symmetrically distributed on the front and rear sides of the inner cavity of the installation cavity (65), two spring clamping blocks (92) symmetrically fixedly installed on the lower parts of the front and rear sides of the moving block (67), and an extrusion rod (93) arranged between the limiting clamping plate (91) and the inner cavity of the installation cavity (65); wherein the spring clamping block (92) is adapted to the limiting clamping plate (91), one side of the outer surface of the extrusion rod (93) is movably connected to one side of the outer surface of the limiting clamping plate (91), the right end of the extrusion rod (93) is fixedly connected to the left side wall of the rotating block (3), and the outer surface of the limiting clamping plate (91) is connected to the inner cavity of the installation cavity (65) via two first tension spring rods (94) symmetrically distributed up and down.

5. A polishing device for stainless steel pipe welding according to claim 1, Features: Three screw rods (12) are installed on the upper surface of the annular connecting shell (63) in a transversely equidistant threaded manner. The bottom ends of the screw rods (12) are movably connected to the upper surface of the docking block (64) via bearings, and the top ends of the screw rods (12) penetrate to the top of the mounting cylinder (2).

6. A polishing device for stainless steel pipe welding according to claim 1, Features: The connecting member (11) comprises a connecting plate arranged between the docking rod (66) and the moving block (67), and two second tension spring rods symmetrically arranged between an inner cavity of the installation cavity (65) close to an inner cavity of the installation tube (2) and an outer surface of the connecting plate; wherein the outer surface of the connecting plate is movably connected to the outer surface of the moving block (67), and the elastic force of the second tension spring rods can drive the connecting plate away from the moving block (67).

7. A polishing device for stainless steel pipe welding according to claim 1, Features: The clamp (7) comprises columns symmetrically and vertically fixedly mounted on the left and right sides of the upper surface of the base (1); an annular placement shell is fixedly mounted on the top of the column; two electric telescopic rods are symmetrically arranged in the inner cavity of the placement shell; and a clamping block for clamping and fixing the stainless steel pipe is fixedly mounted on the output end of the electric telescopic rod.

8. A polishing device for stainless steel pipe welding according to claim 1, Features: The wax spraying mechanism (10) comprises an assembly shell (101) fixedly mounted in the inner cavity of the moving block (67), a connecting cavity (102) provided in the inner cavity of the assembly shell (101) close to the connecting piece (11), a dust collecting cavity (103) provided on the right side of the connecting cavity (102), a dust collecting bag (104) fixedly mounted in the inner cavity of the dust collecting cavity (103), and dust suction holes (105) provided on the opposite surfaces of the two assembly shells (69) for A dust suction hose (106) connecting the dust suction hole (105) with the dust collecting bag (104) moves up and down in the connecting cavity (102) to transport the air in the dust collecting cavity (103) to the air pusher (107) in the cavity of the assembly shell (101); a nozzle (108) symmetrically fixedly mounted on the front and rear side walls of the installation shell (69); and a wax spray hose (109) connecting the nozzle (108) with the cavity of the assembly shell (101); Wherein, one end of the air pushing block (107) extends outside the inner cavity of the communication cavity (102), and one end of the air pushing block (107) is fixedly connected to the connecting member (11). The air in the dust collection cavity (103) is introduced into the communication cavity (102) by setting a one-way intake valve. The air in the communication cavity (102) is introduced into the inner cavity of the assembly shell (101) by setting a one-way exhaust valve. A "U"-shaped sealing plate (15) is slidably installed up and down in the inner cavity of the assembly shell (101). The side wall of the sealing plate (15) can block the left port of the wax spraying hose (109). A vertical rod (13) is fixedly installed vertically on the outer surface of the sealing plate (15) away from the communication cavity (102). One end of the vertical rod (13) penetrates outside the inner cavity of the moving block (67), and one end of the vertical rod (13) is movably connected to the inner cavity of the installation cavity (65). A spring sleeve (14) is fixedly sleeved on the outer surface of the vertical rod (13). The other end of the spring sleeve (14) is fixedly connected to the outer surface of the moving block (67).

9. A polishing method for stainless steel pipe welding according to any one of claims 1-8, characterized in that, it includes the following usage steps: S1: Pass the stainless steel pipe to be polished through the inner cavities of the rotating block (3), the annular mounting block (61) and the fixture (7), so that the weld of the stainless steel pipe is located between the two grinding blocks (4), and clamp and fix the stainless steel pipe through the fixture (7); S2: The operator can adjust the height position of the docking block (64) through the screw rod (12), so that the height positions of the three docking blocks (64) decrease one by one from left to right; S3: The driving motor (52) is started to drive the driving wheel (53) to rotate. When the driving wheel (53) rotates, it can drive the driving ring (51) to drive the rotating block (3) to rotate. When the rotating block (3) rotates, it can drive the two grinding blocks (4) to rotate. At the same time, when the rotating block (3) rotates, it can drive the two screw rods (81) to move circumferentially. When the screw rods (81) move circumferentially, they can drive the annular mounting block (61) to rotate. At the same time, under the action of the roller (83) and the annular track (82), the screw rod (81) can rotate when it moves circumferentially. When the screw rod (81) rotates, it can drive the annular mounting block (61) to move, so that the annular mounting block (61) can rotate while moving. When the annular mounting block (61) moves to the right, it can drive the limit clamping plate (91) to move. Under the action of the extrusion rod (93), , the limiting clamping plate (91) can be combined with the spring clamping block (92) to limit the moving block (67), so that the moving block (67) can only move in the direction of the stainless steel pipe. When the annular mounting block (61) moves to the right and rotates, it can drive the docking rod (66) to move and rotate circumferentially. When the docking rod (66) moves, it drives the ball (610) to contact the bottom surfaces of the three docking blocks (64) in sequence. When the ball (610) contacts the three docking blocks (64) in sequence, the docking rod (66) drives the connecting member (11) to move and push the moving block (67) to intermittently approach the stainless steel pipe. The moving block (67) can drive the mounting shell (69) through the two-stage telescopic rod (68) to drive the grinding block (4) to move and contact the surface of the stainless steel pipe weld nodule for intermittent layer-by-layer grinding and polishing. S4: When the ball (610) contacts and interacts with the bottom surface of the docking block (64), the ball (610) drives the docking rod (66) to drive the connecting member (11) to move, and the connecting member (11) drives the air pushing block (107) to move. When the air pushing block (107) moves, under the action of the one-way air inlet valve and the one-way air outlet valve, negative pressure can be generated in the connecting cavity (102), so that the dust can be collected through the dust collecting cavity (103), the dust suction hose (106) and the dust suction hole (105). Debris particles generated during grinding are sucked into the dust collecting bag (104) for collection, and the sucked air can be compressed into the assembly shell (101). When the ball (610) contacts and interacts with the bottom surface of the rightmost docking block (64), the moving block (67) can be further moved toward the stainless steel pipe. At this time, the side wall of the sealing plate 15 is separated from the left port of the wax spray hose (109), and the compressed air in the assembly shell (101) can transport the polishing wax oil to the nozzle (108) and spray it onto the weld of the stainless steel pipe.

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