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CN-120962020-B - Tapping device for steel pipe machining and machining method thereof

CN120962020BCN 120962020 BCN120962020 BCN 120962020BCN-120962020-B

Abstract

The invention relates to the technical field of tapping equipment, in particular to a tapping device for processing a steel pipe and a processing method thereof, wherein the tapping device comprises a first bracket, a U-shaped seat is arranged at the upper end of the first bracket, and the tapping device further comprises: the supporting mechanism comprises a first supporting seat and a second supporting seat which are slidably connected inside the U-shaped seat, the top of the first supporting seat is connected with a limiting assembly, and the output end of the limiting assembly is propped against the top of the steel pipe. The invention is provided with the supporting mechanism, wherein the high-pressure gas device fills high-pressure gas into the graphite plate, and an air cushion is formed between the graphite plate and the bottom of the steel pipe, so that friction force can be reduced, the steel pipe can be conveniently moved, a follow-up support can be formed, low-frequency vibration is effectively isolated through the air cushion, high-frequency vibration is absorbed through the rubber plate, stability and precision of tapping are improved, and meanwhile, the air cushion can also cool the steel pipe, prevent thermal deformation and ensure the quality of tapping.

Inventors

  • ZHOU WENQING
  • ZHOU YANGYI
  • DING XIANXIAN
  • MAO CHANGJUN
  • FAN QI

Assignees

  • 盛德鑫泰新材料股份有限公司

Dates

Publication Date
20260508
Application Date
20250918

Claims (8)

  1. 1. Tapping device for steel pipe machining, including first support (1), U type seat (11) are installed to the upper end of first support (1), its characterized in that still includes: The supporting mechanism (2), supporting mechanism (2) including slidably connecting first supporting seat (21) and second supporting seat (211) in U type seat (11), first supporting seat (21) top is connected with spacing subassembly (24), spacing subassembly (24)'s output is supported and is leaned on the top of steel pipe, first supporting seat (21) and second supporting seat (211) opposite side all are connected with the semicircle frame, two semicircle frames are close to each other and form big circle frame, slidably be connected with the mounting bracket on the semicircle frame, slidably be connected with the support frame on the mounting bracket, install high-pressure gas device (54) on the support frame, one of the end intercommunication of giving vent to anger of high-pressure gas device (54) has graphite plate (57), another end of giving vent to anger is towards the chip removal region of tapping, graphite plate (57) both sides are all rotationally connected with rubber slab (56), graphite plate (57) and two rubber slab (56) are all supported and are leaned on the outside of steel pipe; the tapping mechanism (3), the tapping mechanism (3) is connected to one side of the first bracket (1), and the tapping mechanism (3) is used for tapping the end part of the steel pipe on the supporting mechanism (2); the upper ends of the first supporting seat (21) and the second supporting seat (211) are wedge-shaped, the wedge-shaped inclined surfaces are inclined surfaces (212), a blanking opening (22) is formed in the bottom of the U-shaped seat (11) in a penetrating mode, the blanking opening (22) is closed after the first supporting seat (21) and the second supporting seat (211) are close to each other, the bottom ends of the upper inclined surfaces (212) face the blanking opening (22) after the first supporting seat and the second supporting seat are far away from each other, a first inclined plate (23) is fixedly connected to the inside of the first bracket (1), and a baffle plate (231) is fixedly connected to the lower end of the first inclined plate (23); The semicircular frame comprises two fixing plates (48) fixedly connected to the inclined surface (212), one ends of the fixing plates (48) away from the inclined surface (212) are fixedly connected with semicircular rails (47), fixing rods are fixedly connected between the tops of the two semicircular rails (47), the corresponding semicircular rails (47) on the two semicircular frames are mutually close to form a large circular rail, the inner sides of the large circular rail are in clearance fit with the outer sides of steel pipes, the inner sides of the tops of the semicircular rails (47) are connected with telescopic stabilizing plates (50), the stabilizing plates (50) stretch out and then lean against the outer sides of the steel pipes, a plurality of connecting rods (49) are fixedly connected between the two circumferential rolling devices (52), the two circumferential rolling devices (52) and the plurality of connecting rods (49) form a mounting frame, a first driving device (51) is mounted on one circumferential rolling device (52), and the output end of the first driving device (51) is connected with the semicircular rails (47) and is used for driving the mounting frame (47) to move on the semicircular rails (47); Install second drive arrangement (53) and roller device (55) on the support frame, roller device (55) simultaneously with a plurality of connecting rods (49) roll connection, its during operation drive support frame moves on a plurality of connecting rods (49), second drive arrangement (53) are connected with roller device (55) electricity for roller device (55) power supply, electric rotating shaft is installed in the rotation junction of graphite sheet (57) and rubber sheet (56), and electric rotating shaft is used for adjusting the angle of rubber sheet (56) for graphite sheet (57).
  2. 2. The tapping device for steel pipe machining according to claim 1, wherein a first slide rail (26) and a second slide rail (261) are respectively installed inside the U-shaped seat (11), the first support seat (21) is slidably connected to the first slide rail (26), the second support seat (211) is slidably connected to the second slide rail (261), a second hydraulic rod (25) and a third hydraulic rod (251) are respectively installed on two sides of the U-shaped seat (11), an output end of the second hydraulic rod (25) is fixedly connected with the first support seat (21), and an output end of the third hydraulic rod (251) is fixedly connected with the second support seat (211).
  3. 3. The tapping device for steel pipe machining according to claim 2, wherein the limiting assembly (24) comprises a supporting plate (241) fixedly connected to the upper end of the first supporting seat (21), a first hydraulic rod (242) is installed on the supporting plate (241), the output end of the first hydraulic rod (242) is fixedly connected with a limiting plate (243), the limiting plate (243) is propped against the top of the steel pipe after moving downwards, a fan (244) is installed on the supporting plate (241), the air outlet end of the fan (244) is communicated with an air guide pipe (245), and the air outlet end of the air guide pipe (245) faces the steel pipe and the chip removing area of tapping machining.
  4. 4. A tapping device for steel tube machining according to claim 3, wherein the tapping mechanism (3) comprises a second bracket (31) fixedly connected to one side of the first bracket (1), a tapping assembly (34) is connected to the second bracket (31), a second inclined plate (32) is fixedly connected to the inside of the second bracket (31), a receiving box (33) is slidingly connected to the bottom of the second inclined plate (32), the lower end of the second inclined plate (32) faces the inside of the receiving box (33), and a pull rod (331) is mounted on the receiving box (33).
  5. 5. The tapping device for steel pipe machining according to claim 4, wherein the tapping assembly (34) comprises a speed reducing motor (362) mounted on the second support (31), a screw rod (36) and a supporting rod (361) are rotatably connected between the first support (1) and the second support (31), an output end of the speed reducing motor (362) is fixedly connected with the screw rod (36) coaxially, a movable seat (35) is connected to the screw rod (36) in a threaded manner, one end, far away from the screw rod (36), of the movable seat (35) is connected with the supporting rod (361) in a sliding and penetrating manner, a fourth hydraulic rod (39) is mounted on the movable seat (35), a motor seat (37) is fixedly connected to an output end of the fourth hydraulic rod (39), a plurality of guide rods (391) are fixedly connected to the bottom of the motor seat (37), tapping motors (371) are mounted in the inner portions, the bottom ends of the guide rods (391) are fixedly connected with the movable seat (35) in a sliding and penetrating manner, a screw tap (372) is mounted at an output end of the tapping motor (371), and one side, close to the supporting mechanism (2), of the motor seat (37) is fixedly connected with a protection plate (38).
  6. 6. The tapping device for steel pipe machining according to claim 5, further comprising a feeding mechanism (4), wherein the feeding mechanism (4) comprises a third support (41) fixedly connected to one side, far away from the second support (31), of the first support (1), a discharging table (42) is fixedly connected to the upper end of the third support (41), a discharging groove (43) and a feeding groove (44) are respectively formed in the upper end of the discharging table (42), steel pipes to be tapped are placed in the discharging groove (43), a fifth hydraulic rod (45) is mounted on the groove wall of the feeding groove (44), a push plate (46) is fixedly connected to the output end of the fifth hydraulic rod (45), and the steel pipes in the feeding groove (44) are pushed to the inside of the supporting mechanism (2) when the push plate (46) moves.
  7. 7. The tapping device for steel pipe machining according to claim 6, wherein an electric cabinet (27) is mounted on a side wall of the U-shaped seat (11), and the electric cabinet (27) is electrically connected to the first hydraulic rod (242), the fan (244), the second hydraulic rod (25), the third hydraulic rod (251), the gear motor (362), the tapping motor (371), the fourth hydraulic rod (39), the fifth hydraulic rod (45), the first driving device (51), the second driving device (53) and the high-pressure gas device (54) for controlling the operation state of each of the execution parts.
  8. 8. A tapping method for steel pipe machining comprising the tapping device for steel pipe machining according to claim 7, further comprising the steps of: s1, feeding preparation, wherein a second hydraulic rod (25) and a third hydraulic rod (251) are started simultaneously, and two semicircular frames form a large circular frame through a first supporting seat (21) and a second supporting seat (211); S2, feeding, namely starting a fifth hydraulic rod (45), and pushing a steel pipe in a feeding groove (44) into a large circular frame through a push plate (46); s3, fixing, namely starting a first hydraulic rod (242), pressing down the top of the steel pipe through a limiting plate (243), and supporting a graphite plate (57) and two rubber plates (56) at the bottom of the steel pipe; S4, tapping and positioning, namely starting a fourth hydraulic rod (39) and a gear motor (362), and adjusting the height and the horizontal position of the tap (372); s5, tapping, namely starting a tapping motor (371), and tapping the end part of the steel pipe through a tap (372); s6, a follow-up support, a second driving device (53) and a high-pressure gas device (54) are started to enable the support frame to follow the tapping position, and a layer of air cushion is generated between the graphite plate (57) and the steel pipe to form the follow-up support and cooling; S7, removing the scraps, starting a fan (244), and blowing air towards the scraps removing area of the tap (372) from the air outlet end of the high-pressure air device (54) so that the scraps fall into the material receiving box (33).

Description

Tapping device for steel pipe machining and machining method thereof Technical Field The invention relates to the technical field of tapping equipment, in particular to a tapping device for steel tube machining and a machining method thereof. Background The steel pipe tapping equipment is a process for machining internal threads on a steel pipe to obtain a threaded steel pipe so as to be connected with other threaded pipes, and the threaded connection mode has good sealing performance and reliability and is widely applied to pipeline systems in the fields of construction, water conservancy, chemical industry and the like. ‌ steel pipe tapping device is through with screw tap screw in advance boring in the bottom hole in advance, processes out the internal thread, when carrying out tapping to the steel pipe, adopts fixed knot structure to fix the steel pipe generally, when carrying out tapping to the steel pipe of different pipe diameters, needs to dismantle and assemble fixed knot structure repeatedly, has reduced the adaptability to tapping of different pipe diameters. In the prior art, a bidirectional threaded rod is matched with a tapping column with replaceable tapping teeth to adapt to tapping processing of steel pipes with different specifications, in the mode, follow-up support and efficient chip removal of tapping positions of the steel pipes are lacked, stability and accuracy of the tapping processing are not improved, a lubricating liquid collecting device is adopted, steel wire residues are conveyed to an inner cavity of a box body by utilizing a rotary spiral conveying rod, and in the mode, automatic blanking and efficient chip removal cannot be carried out when the steel pipes are subjected to tapping processing. Disclosure of Invention The invention aims to solve the defects that the follow-up support and efficient chip removal for the tapping position of a steel pipe are lacking in the prior art, and the stability and the precision of tapping are not improved, and provides a tapping device for steel pipe machining and a machining method thereof. In order to achieve the above purpose, the present invention adopts the following technical scheme: the tapping device for processing the steel pipe comprises a first bracket, wherein a U-shaped seat is arranged at the upper end of the first bracket, and the tapping device further comprises: The supporting mechanism comprises a first supporting seat and a second supporting seat which are slidably connected inside the U-shaped seat, the top of the first supporting seat is connected with a limiting assembly, the output end of the limiting assembly is propped against the top of a steel pipe, two opposite sides of the first supporting seat and the second supporting seat are respectively connected with a semicircular frame, the two semicircular frames are mutually close to form a big circular frame, a mounting frame is slidably connected to one semicircular frame, a supporting frame is slidably connected to the mounting frame, a high-pressure gas device is mounted on the supporting frame, one gas outlet end of the high-pressure gas device is communicated with a graphite plate, the other gas outlet end faces towards a chip removal area of tapping processing, two sides of the graphite plate are rotatably connected with rubber plates, and the graphite plate and the two rubber plates are propped against the outer side of the steel pipe; the tapping mechanism is connected to one side of the first support and used for tapping the end part of the steel pipe on the supporting mechanism. Preferably, the first slide rail and the second slide rail are respectively installed in the U-shaped seat, the first supporting seat is connected to the first slide rail in a sliding mode, the second supporting seat is connected to the second slide rail in a sliding mode, the second hydraulic rod and the third hydraulic rod are respectively installed on two sides of the U-shaped seat, the output end of the second hydraulic rod is fixedly connected with the first supporting seat, and the output end of the third hydraulic rod is fixedly connected with the second supporting seat. Preferably, the upper ends of the first supporting seat and the second supporting seat are wedge-shaped, the wedge-shaped inclined planes are inclined planes, the bottom of the U-shaped seat is penetrated and provided with a feed opening, the first supporting seat and the second supporting seat are close to each other and then close to each other, the bottom ends of the upper inclined planes of the first supporting seat and the second supporting seat are far away from each other and face the feed opening, the first inclined plates are fixedly connected in the first supporting frame, and the baffle is fixedly connected in the lower end of each first inclined plate. Preferably, the limiting component comprises a supporting plate fixedly connected to the upper end of the first supporting seat, a first hydraulic