A galvanized steel pipe end thread processing device

Abstract

The present invention discloses a galvanized steel pipe end thread processing device, which belongs to the technical field of galvanized steel pipe processing equipment, and comprises a base, a cutting assembly is arranged on the base, a displacement circular plate is rotatably installed on the base, and the displacement circular plate is provided with a first fixing assembly and a second fixing assembly. By arranging a fan-shaped support seat one and a fan-shaped support seat two, it is possible to facilitate the lifting of the galvanized steel pipe and improve the installation efficiency of the galvanized steel pipe, and it is also possible to lock the position of the fan-shaped support seat two by the limiting circular block and the fan-shaped limiting strip plate. By arranging the first fixing assembly and the second fixing assembly, it is possible to realize rapid fixation of the galvanized steel pipe and also to realize real-time change of the galvanized steel pipe, that is, it is possible to provide real-time support for the processing position of the galvanized steel pipe, and by arranging the cutting assembly, it is possible to realize rapid adjustment of the position of the thread cutting blade, so that the inner side or the outer side of the galvanized steel pipe can be threaded according to demand.

Description

Technical Field

[0001] The invention relates to the technical field of galvanized steel pipe processing equipment, in particular to a galvanized steel pipe end thread processing device. Background Art

[0002] Galvanized steel pipes are widely used in the fields of construction, pipelines, engineering, etc., and the market demand is large. Galvanized steel pipes usually need to be threaded at the ends before use to facilitate the mutual connection between steel pipes, and the processing quality of the end threads directly affects the connection quality and sealing performance between steel pipes. The traditional method of manually operating machine tools to process threads is prone to errors. Therefore, the thread processing device can effectively avoid the irregularities or incompleteness caused by manual processing, and can ensure the accuracy and consistency of the threads. The existing thread processing device has poor stability. When it is necessary to process longer threads, it is impossible to support the processing position of the galvanized steel pipe in real time. It is necessary to adjust the fixed position of the galvanized steel pipe multiple times to realize the processing of long threads, which can easily lead to the inability to ensure the continuity of the processed threads, and it is not convenient to hoist the larger galvanized steel pipes when processing them. Therefore, the present invention provides a galvanized steel pipe end thread processing device. Summary of the invention

[0003] In view of the defects in the prior art, the present invention provides a galvanized steel pipe end thread processing device, which overcomes the problem that the fixed position of the galvanized steel pipe needs to be adjusted multiple times to realize the processing of long threads, which easily leads to the inability to ensure the continuity of the processed threads and is inconvenient to lift when processing large galvanized steel pipes.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a galvanized steel pipe end thread processing device, comprising a base, a cutting assembly is arranged on the base, the cutting assembly comprises a rotary electric cylinder, a mounting seat is fixedly mounted on the piston end of the rotary electric cylinder, a thread cutting blade is movably arranged on the mounting seat, a transposition circular plate is rotatably mounted on the base, a first fixing assembly and a second fixing assembly are arranged on the transposition circular plate, the first fixing assembly and the second fixing assembly both comprise a fan-shaped support seat frame, a fan-shaped rack is rotatably mounted on the fan-shaped support seat frame, a fan-shaped support seat 1 is fixedly mounted on the inner side of the fan-shaped rack, a fan-shaped support seat 1 is rotatably mounted on the fan-shaped support seat 1 The fan-shaped support seat two, the fan-shaped support seat one and the fan-shaped support seat two form a complete circle when they are connected, the fan-shaped support seat one is symmetrically slidably installed with two clamping racks, the fan-shaped support seat two is also slidably installed with a clamping rack, the ends of the clamping racks are fixedly installed with clamping rods, the side of the fan-shaped support seat two is fixedly installed with limiting circular blocks, the fan-shaped support seat one is rotatably installed with fan-shaped driving strips, the fan-shaped driving strips are fixedly provided with fan-shaped limiting strips, the limiting circular blocks are provided with sliding grooves that cooperate with the fan-shaped limiting strips, and the limiting circular blocks and the fan-shaped limiting strips are used to realize the fixation between the fan-shaped support seat two and the fan-shaped support seat one.

[0005] Furthermore, the cutting assembly also includes a shift slide slidably mounted on the base, a shift screw is rotatably mounted on the base, the shift screw and the shift slide constitute a spiral pair, a height adjustment slide is slidably mounted on the shift slide, a feed slide is slidably mounted on the height adjustment slide, the rotary electric cylinder is fixedly mounted on the end of the feed slide, a feed screw is rotatably mounted on the height adjustment slide, and the feed screw and the feed slide constitute a spiral pair.

[0006] Furthermore, the fan-shaped support frame in the first fixed component is fixedly mounted on the transposition circular plate, the fan-shaped support frame in the second fixed component is slidably mounted on the transposition circular plate, an adjustment screw is rotatably mounted on the transposition circular plate, the fan-shaped support frame and the adjustment screw in the second fixed component form a spiral pair, and the axes of the two fan-shaped support frames are on the same straight line.

[0007] Furthermore, a strip push block is fixedly provided on the end of the fan-shaped driving strip closest to the fan-shaped supporting seat 2, and a fan-shaped closing rack is fixedly installed on the end of the strip push block closest to the axis of the fan-shaped driving strip. A closing gear is fixedly provided between the fan-shaped supporting seat 2 and the corresponding limiting circular block. When the fan-shaped closing rack and the closing gear are engaged, a gear rack pair is formed, and there is friction between the fan-shaped supporting seat 2 and the fan-shaped supporting seat 1.

[0008] Furthermore, two clamping gears are symmetrically rotatably installed on the fan-shaped support seat one, and one clamping gear is also rotatably installed on the fan-shaped support seat two. The clamping gears are respectively meshed with corresponding clamping racks to form a gear rack pair, and torsion springs are respectively arranged between the clamping gears and the corresponding fan-shaped support seat one and fan-shaped support seat two.

[0009] Furthermore, two fan-shaped fixed racks are evenly fixed on the fan-shaped driving strip, an arc-shaped strip is movably arranged on the second fan-shaped support seat, the strip push block is used to push the arc-shaped strip to move, and a fan-shaped fixed rack is also arranged on the arc-shaped strip. Transmission gears are fixedly installed on the sides of the clamping gears, and the transmission gears form a gear rack pair when they are respectively engaged with the corresponding fan-shaped fixed racks.

[0010] Furthermore, the axes of the fan-shaped support seat frame, fan-shaped rack, fan-shaped driving strip, fan-shaped support seat 1, and fan-shaped limiting strip in the same fixed component are on the same straight line. When the fan-shaped support seat 1 and the fan-shaped support seat 2 in the same fixed component form a complete circle, the axis of the arc strip and the axis of the fan-shaped limiting strip are on the same straight line.

[0011] Furthermore, two driving gears are symmetrically mounted on the fan-shaped support frame for rotation, and the driving gears and the corresponding fan-shaped racks are meshed to form a gear pair. Splined long shafts are fixedly mounted on the two driving gears in the first fixed component, and a transmission group is arranged between the two driving gears in the second fixed component. The splined long shafts respectively form a spline sliding fit with the corresponding driving gears in the second fixed component.

[0012] Furthermore, an arc-shaped support plate is slidably installed on the fan-shaped support seat 1, and a spring is arranged between the fan-shaped support seat 1 and the arc-shaped support plate. The arc-shaped support plate is used to assist in supporting the galvanized steel pipe when the galvanized steel pipe is installed and fixed.

[0013] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention can facilitate the hoisting of galvanized steel pipes by setting the first and second fan-shaped support seats, improve the installation efficiency of galvanized steel pipes, and can also lock the position of the second fan-shaped support seat by the limiting round block and the fan-shaped limiting strip, thereby improving the stability of the device. (2) The present invention can realize the rapid fixation of galvanized steel pipes by setting the first fixing component and the second fixing component, and can also realize the real-time change of the galvanized steel pipe, that is, can support the processing position of the galvanized steel pipe in real time, thereby improving the stability of the galvanized steel pipe during processing. (3) The present invention can realize the rapid adjustment of the position of the thread cutting blade by setting the cutting component, so that the inner or outer side of the galvanized steel pipe can be threaded according to the needs. (4) The present invention can realize the one-time forming processing of the galvanized steel pipe by the mutual cooperation of the first fixing component, the second fixing component and the cutting component, which greatly improves the thread quality of the galvanized steel pipe after processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a side view of the overall structure of the present invention.

[0016] Figure 3 It is a schematic structural diagram of the cutting assembly of the present invention.

[0017] Figure 4 It is a structural schematic diagram of the transposition circular plate of the present invention.

[0018] Figure 5 It is a schematic structural diagram of the fan-shaped support frame of the present invention.

[0019] Figure 6 It is a schematic structural diagram of the sector-shaped rack of the present invention.

[0020] Figure 7 for Figure 6 A local enlarged schematic diagram of point A in the middle.

[0021] Figure 8 It is a front view of the structure of the sector rack of the present invention.

[0022] Fig. 9 It is a structural schematic diagram of the fan-shaped support seat 1 and the fan-shaped support seat 2 in the engaged state of the present invention.

[0023] Fig.10 It is a front view of the fan-shaped support seat 1 and the fan-shaped support seat 2 of the present invention in the engaged state.

[0024] Reference numerals: 101-base; 102-transposition circular plate; 103-shifting slide plate; 104-shifting screw rod; 105-shifting motor; 106-feeding motor; 107-heightening slide seat; 108-sector-shaped supporting seat frame; 109-heightening electric cylinder; 110-feeding screw rod; 111-feeding slide plate; 112-rotating electric cylinder; 113-mounting seat; 114-thread cutting blade; 115-positioning motor; 116-positioning screw rod; 117-sector-shaped rack; 118-driving motor; 119-driving gear; 120-spline long shaft; 121 -transmission group; 122-fan-shaped driving strip; 123-fan-shaped support seat one; 124-fan-shaped support seat two; 125-clamping rod; 126-arc-shaped support plate; 127-fan-shaped fixed rack; 128-fan-shaped driving rack; 129-fixed motor; 130-fixed gear; 131-clamping rack; 132-transmission gear; 133-clamping gear; 134-arc-shaped strip; 135-closing gear; 136-limiting circular block; 137-transposition motor; 138-fan-shaped limiting strip; 139-strip push block; 140-fan-shaped closing rack. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0026] Example: Reference Figure 1-Figure 10 A galvanized steel pipe end thread processing device includes a base 101, a cutting assembly is arranged on the base 101, the cutting assembly includes a shifting slide 103 slidably mounted on the base 101, a shifting screw 104 is also rotatably mounted on the base 101, the shifting screw 104 and the shifting slide 103 form a spiral pair, a shifting motor 105 is fixedly mounted on the base 101, the output shaft of the shifting motor 105 is fixedly connected to the shifting screw 104, a height adjustment slide 107 is slidably mounted on the shifting slide 103, a height adjustment electric cylinder 109 is fixedly mounted on the upper surface of the shifting slide 103, the piston rod end of the height adjustment electric cylinder 109 is fixedly connected to the height adjustment slide 107, and the sliding height adjustment slide 107 is A feed slide 111 is installed, and a feed screw 110 is rotatably installed on the height adjustment slide 107. The feed screw 110 and the feed slide 111 form a spiral pair. A feed motor 106 is fixedly installed on the height adjustment slide 107, and the output shaft of the feed motor 106 is fixedly connected to the feed screw 110. A rotary electric cylinder 112 is fixedly installed on the end face of the feed slide 111 farthest from the feed motor 106, and a mounting seat 113 is fixedly installed on the piston end of the rotary electric cylinder 112. A thread cutting blade 114 is movably arranged on the mounting seat 113, and bolts are arranged between the mounting seat 113 and the thread cutting blade 114, and the mounting seat 113 and the thread cutting blade 114 are fixedly connected by bolts.

[0027] Start the shift motor 105 to drive the shift screw 104 to rotate, so that the shift slide 103 moves laterally on the base 101, start the height adjustment electric cylinder 109 to make the height adjustment slide 107 move up and down relative to the base 101, start the feed motor 106 to drive the feed screw 110, so that the feed slide 111 moves laterally relative to the height adjustment slide 107, start the rotating electric cylinder 112 to drive the mounting seat 113 to rotate, that is, adjust the angle of the thread cutting blade 114. Under the action of the shift motor 105, the feed motor 106, the height adjustment electric cylinder 109 and the rotating electric cylinder 112, the position of the thread cutting blade 114 is adjusted.

[0028] A transposition circular plate 102 is rotatably mounted on the base 101, and a transposition motor 137 is fixedly mounted on the lower surface of the base 101. The output shaft of the transposition motor 137 is fixedly connected to the transposition circular plate 102. A first fixed component and a second fixed component are provided on the transposition circular plate 102. The first fixed component and the second fixed component both include a fan-shaped support frame 108. The axes of the two fan-shaped support frames 108 are in the same straight line. The fan-shaped support frame 108 in the first fixed component is fixedly mounted on the transposition circular plate 102, and the fan-shaped support frame 108 in the second fixed component is slidably mounted on the transposition circular plate 102. A positioning screw rod 116 is rotatably mounted on the transposition circular plate 102. The fan-shaped support frame 108 in the second fixed component and the positioning screw rod 116 constitute a spiral pair. A positioning motor 115 is fixedly mounted on the transposition circular plate 102. The output shaft of the positioning motor 115 is fixedly connected to the positioning screw rod 116, and the opening of the fan-shaped support frame 108 is vertically upward.

[0029] Sector-shaped racks 117 are rotatably mounted on the sector-shaped support frame 108, and two driving gears 119 are symmetrically rotatably mounted on the sector-shaped support frame 108. The driving gears 119 and the corresponding sector-shaped racks 117 mesh with each other to form a gear pair. A splined long shaft 120 is fixedly mounted on the two driving gears 119 in the first fixed component. A transmission group 121 is arranged between the two driving gears 119 in the second fixed component. The transmission group 121 includes two pulleys and one belt. The two pulleys in the transmission group 121 are connected by the belt in the transmission group 121. The two pulleys in the transmission group 121 are respectively fixedly mounted on the two driving gears 119 in the second fixed component, and the splined long shaft 120 respectively forms a spline sliding fit with the corresponding driving gears 119 in the second fixed component. A driving motor 118 is fixedly mounted on the sector-shaped support frame 108 in the first fixed component, and the output shaft of the driving motor 118 is fixedly connected to the corresponding driving gear 119.

[0030] In the initial position, the openings of the two sector racks 117 are vertically upward, and the drive motor 118 is started to drive the corresponding drive gear 119 to rotate. Under the action of the spline long shaft 120 and the transmission group 121, the four drive gears 119 rotate synchronously, that is, the two sector racks 117 rotate synchronously, and the positioning motor 115 is started to drive the positioning screw 116 to rotate, so that the sector support frame 108 in the second fixed assembly moves toward the direction close to the sector support frame 108 in the first fixed assembly, and the drive gear 119 in the second fixed assembly slides relative to the corresponding spline long shaft 120.

[0031] A fan-shaped support seat 123 is fixedly installed on the inner side of the fan-shaped rack 117, and a fan-shaped support seat 2 124 is rotatably installed on the fan-shaped support seat 123. When the fan-shaped support seat 123 and the fan-shaped support seat 2 124 are engaged, a complete circular ring is formed. Two clamping racks 131 are symmetrically slidably installed on the fan-shaped support seat 123, and a clamping rack 131 is also slidably installed on the fan-shaped support seat 2 124. The ends of the clamping rack 131 are fixedly installed with clamping rods 125. When the fan-shaped support seat 123 and the fan-shaped support seat 2 124 in the same fixed assembly form a complete circular ring, the three clamping rods 125 in the fixed assembly are distributed in a circular array relative to the axis of the fan-shaped support seat 2 124.

[0032] A limited circular block 136 is fixedly installed on the side of the second sector support seat 124, and a closed gear 135 is fixedly arranged between the second sector support seat 124 and the corresponding limited circular block 136. The axes of the closed gear 135 and the corresponding limited circular block 136 are on the same straight line. There is friction between the second sector support seat 124 and the first sector support seat 123. The second sector support seat 124 will not rotate relative to the first sector support seat 123 when no external force is applied. The first sector support seat 123 is rotatably installed with a sector drive strip plate 122, and a sector drive rack 128 is fixedly installed on the outer circumferential surface of the sector drive strip plate 122. A fixed gear 130 is also rotatably installed on the first sector support seat 123, and the fixed gear 130 and the sector drive rack 128 mesh to form a gear rack pair A fixed motor 129 is also fixedly installed on the fan-shaped support seat 123, and the output shaft of the fixed motor 129 is fixedly connected to the fixed gear 130. A strip push block 139 is fixedly arranged on the end of the fan-shaped driving strip plate 122 closest to the fan-shaped support seat 2 124, and a fan-shaped closing rack 140 is fixedly installed on the end of the strip push block 139 closest to the axis of the fan-shaped driving strip plate 122. When the fan-shaped closing rack 140 and the closing gear 135 are engaged, a gear rack pair is formed. A fan-shaped limiting strip plate 138 is fixedly arranged on the fan-shaped driving strip plate 122, and the limiting round block 136 is provided with a sliding groove that cooperates with the fan-shaped limiting strip plate 138. The limiting round block 136 and the fan-shaped limiting strip plate 138 are used to realize the fixation between the fan-shaped support seat 2 124 and the fan-shaped support seat 1 123.

[0033] In the initial position, the fan-shaped limiting strip 138 does not contact the slide groove on the limiting circle 136. At this time, the end of the fan-shaped support seat 2 124 that is not connected to the fan-shaped support seat 1 123 is located at the farthest position from the axis of the fan-shaped support seat 1 123, and at this time, the fan-shaped closing rack 140 and the closing gear 135 are meshed to form a gear rack pair.

[0034] The fixed motor 129 is started to drive the corresponding fixed gear 130 to rotate. Under the action of the fan-shaped driving rack 128, the fan-shaped driving strip plate 122 rotates toward the direction of the clamping rod 125 on the fan-shaped support seat 124. Under the action of the fan-shaped closing rack 140, the closing gear 135 rotates, that is, the end of the fan-shaped support seat 124 that is not connected to the fan-shaped support seat 1 123 rotates toward the direction of the fan-shaped support seat 1 123, and finally the end of the fan-shaped support seat 124 that is not connected to the fan-shaped support seat 1 123 is connected to the fan-shaped support seat 1 123. The fan-shaped closing rack 140 is disengaged from the closing gear 135, and the circumferential direction of the sliding groove on the limiting circle 136 is the same as the circumferential direction of the fan-shaped limiting strip 138. The fixed gear 130 continues to rotate, that is, the fan-shaped driving strip 122 continues to rotate, and the fan-shaped limiting strip 138 engages with the sliding groove on the limiting circle 136. Under the action of the limiting circle 136 and the fan-shaped limiting strip 138, the fan-shaped support seat 124 cannot rotate relative to the fan-shaped support seat 1 123, that is, the fixation between the fan-shaped support seat 1 123 and the fan-shaped support seat 2 124 is achieved.

[0035] Two clamping gears 133 are symmetrically rotatably mounted on the sector support seat 123, and one clamping gear 133 is also rotatably mounted on the sector support seat 2 124. The clamping gears 133 are respectively meshed with the corresponding clamping racks 131 to form a gear rack pair. A torsion spring is arranged between the clamping gears 133 and the sector support seat 1 123, one end of the torsion spring is fixedly connected to the sector support seat 1 123, and the other end of the torsion spring is fixedly connected to the corresponding clamping gear 133. A torsion spring is arranged between the clamping gear 133 and the sector support seat 2 124. One end of the torsion spring is fixedly connected to the fan-shaped support seat 124, and the other end of the torsion spring is fixedly connected to the corresponding clamping gear 133. In the initial position, the torsion spring between the clamping gear 133 and the fan-shaped support seat 1 123 is not compressed, and the clamping rod 125 on the fan-shaped support seat 1 123 is located at the farthest position from the axis of the fan-shaped support seat 1 123. The torsion spring between the clamping gear 133 and the fan-shaped support seat 124 is not compressed, and the clamping rod 125 on the fan-shaped support seat 1 124 is located at the farthest position from the axis of the fan-shaped support seat 1 124.

[0036] Two fan-shaped fixed racks 127 are evenly fixed on the fan-shaped driving strip plate 122, an arc-shaped strip plate 134 is movably provided on the fan-shaped support seat 124, a strip push block 139 is used to push the arc-shaped strip plate 134 to move, and a fan-shaped fixed rack 127 is also provided on the arc-shaped strip plate 134. Transmission gears 132 are fixedly installed on the sides of the clamping gear 133. When the transmission gears 132 are respectively engaged with the corresponding fan-shaped fixed racks 127, a gear rack pair is formed.

[0037] The axes of the fan-shaped support seat frame 108, the fan-shaped rack 117, the fan-shaped driving strip plate 122, the fan-shaped support seat 1 123, and the fan-shaped limiting strip plate 138 in the same fixed component are on the same straight line. When the fan-shaped support seat 1 123 and the fan-shaped support seat 2 124 in the same fixed component form a complete circle, the axis of the arc strip plate 134 and the axis of the fan-shaped limiting strip plate 138 are on the same straight line.

[0038] In the initial position, the fan-shaped fixed rack 127 on the arc strip 134 is in an engaged state with the corresponding transmission gear 132. Under the action of the torsion spring between the arc strip 134 and the clamping gear 133 on the arc strip 134, the end of the arc strip 134 farthest from the transmission gear 132 on the fan-shaped support seat 124 is located at the farthest position from the end of the fan-shaped support seat 124 that is not connected to the fan-shaped support seat 1 123. The fan-shaped fixed racks 127 on the fan-shaped driving strip 122 are not engaged with the corresponding transmission gear 132 on the fan-shaped support seat 1 123, and the strip push block 139 does not contact the end of the arc strip 134 farthest from the transmission gear 132 on the fan-shaped support seat 124.

[0039] When the fixed motor 129 is started to drive the fixed gear 130 to rotate, so that the fan-shaped limit strip plate 138 and the slide groove on the limit round block 136 are engaged, the fan-shaped fixed rack 127 on the fan-shaped driving strip plate 122 is still not in contact with the transmission gear 132 on the fan-shaped support seat 123, and the strip push block 139 is also not in contact with the arc strip plate 134. The fixed motor 129 is continued to be started to drive the fixed gear 130 to rotate, so that the fan-shaped fixed rack 127 on the fan-shaped driving strip plate 122 is engaged with the transmission gear 132 on the fan-shaped support seat 123 to form a gear rack pair. At this time, the strip push block 139 also contacts the end of the arc strip plate 134, and the fan-shaped driving strip plate 122 continues to rotate, and the fan-shaped fixed rack 127 on the fan-shaped driving strip plate 122 drives the corresponding The transmission gear 132 rotates, and under the action of the strip push block 139, the arc strip plate 134 moves synchronously, that is, the fan-shaped fixed rack 127 on the arc strip plate 134 also drives the corresponding transmission gear 132 to rotate, that is, the three transmission gears 132 in the same fixed component rotate synchronously, so that the three clamping gears 133 in the same fixed component rotate synchronously, and the torsion spring between the clamping gear 133 and the fan-shaped support seat 1 123 is compressed, and the torsion spring between the clamping gear 133 and the fan-shaped support seat 2 124 is compressed. Under the action of the clamping gear 133, the clamping rack 131 moves toward the direction close to the axis of the fan-shaped rack 117, so that the clamping rod 125 moves toward the direction close to the axis of the fan-shaped rack 117.

[0040] An arc-shaped support plate 126 is slidably installed on the fan-shaped support seat 123, and a spring is arranged between the fan-shaped support seat 123 and the arc-shaped support plate 126. The concave surface of the arc-shaped support plate 126 faces the axis of the fan-shaped rack 117. The arc-shaped support plate 126 is used to assist in supporting the galvanized steel pipe when installing and fixing the galvanized steel pipe.

[0041] Working principle: Start the transposition motor 137 to drive the transposition circular plate 102 to rotate, start the adjustment motor 115 to drive the adjustment screw 116 to rotate, so that the second fixed component is located at the position closest to the shift slide 103, and the openings of the fan-shaped rack 117 are all facing upwards, so as to facilitate the lifting of the galvanized steel pipe to be processed, and then place the galvanized steel pipe to be processed on the two arc-shaped support plates 126, and adjust the position of the arc-shaped support plate 126 of the galvanized steel pipe in the second fixed component so that the end face of the galvanized steel pipe to be processed is located on the inner side of the end face of the clamping rod 125 in the second fixed component, and the spring between the arc-shaped support plate 126 and the fan-shaped support seat 123 is compressed. Under the action of the spring between the fan-shaped support seat 123 and the arc-shaped support plate 126, the axis of the galvanized steel pipe to be processed placed on the arc-shaped support plate 126 will not move below the axis of the fan-shaped rack 117.

[0042] Then, the fixed motor 129 is started to drive the two fixed gears 130 to rotate. Under the action of the fan-shaped driving rack 128, the two fan-shaped driving strips 122 rotate synchronously. Then, under the action of the closing gear 135 and the fan-shaped closing rack 140, the fan-shaped support seat 2 124 and the fan-shaped support seat 1 123 engage to form a complete ring. The fan-shaped driving strip 122 continues to rotate, and the fan-shaped limiting strip 138 engages with the sliding groove on the limiting round block 136, that is, the position of the fan-shaped support seat 2 124 is locked. The fan-shaped driving strip 122 continues to rotate, and the fan-shaped fixed racks 127 all contact the corresponding transmission gear 1 32. The strip push block 139 contacts the end of the arc strip plate 134, and the fan-shaped driving strip plate 122 continues to rotate. Under the action of the strip push block 139, the arc strip plate 134 rotates synchronously, and then under the action of the fan-shaped fixed rack 127, the three transmission gears 132 all rotate. Under the action of the clamping gear 133, the clamping rack 131 moves toward the direction close to the axis of the fan-shaped rack 117, that is, the clamping rod 125 moves toward the direction close to the axis of the fan-shaped rack 117, and finally the clamping rod 125 contacts the surface of the galvanized steel pipe, and the galvanized steel pipe is fixed under the action of the clamping rod 125.

[0043] At this time, under the action of the clamping rod 125 in the two fixing components, the galvanized steel pipe is in a fixed state, and then the fixing motor 129 in the second fixing component is started, so that the clamping rod 125 in the second fixing component slightly loosens the fixation of the galvanized steel pipe. At this time, the galvanized steel pipe can move relative to the clamping rod 125 in the second fixing component, and then the positioning motor 115 is started to drive the positioning screw 116 to move, so that the fan-shaped support frame 108 in the second fixing component moves, so that the end face of the galvanized steel pipe to be processed is located on the outside of the clamping rod 125 in the second fixing component, and then the shifting motor 105, the height adjustment electric cylinder 109, and the rotating electric cylinder 112 are started to move the thread cutting blade 114 to contact the end face of the galvanized steel pipe, and then the driving motor 118 is started, and under the action of the driving gear 119, the splined long shaft 120, and the transmission group 121, the two fan-shaped racks 117 rotate synchronously. Under the action of the clamping rod 125 in the first fixing assembly, the galvanized steel pipe rotates synchronously, and then the feed motor 106 is started to drive the feed slide 111 to move toward the first fixing assembly, so that the thread cutting blade 114 performs thread processing on the galvanized steel pipe.

[0044] During the movement of the feed slide 111, the positioning motor 115 is started to make the second fixed component move synchronously in the direction close to the first fixed component. Under the action of the three clamping rods 125 in the second fixed component, the processing position of the galvanized steel pipe is continuously supported, thereby improving the stability of the galvanized steel pipe processing thread and avoiding the deformation of the galvanized steel pipe due to lack of support at the processing position when processing long threads on the galvanized steel pipe.

[0045] When processing threads on both ends of the galvanized steel pipe, after completing the above steps, start the positioning motor 115 to drive the fan-shaped support frame 108 in the second fixing component to move, adjust the position of the clamping rod 125 in the second fixing component to clamp and fix the galvanized steel pipe, so that when the clamping rod 125 in the second fixing component clamps and fixes the galvanized steel pipe and moves to the position farthest from the first fixing component, the galvanized steel pipe is located on the inner side of the shift motor 105 at the end of the first fixing component, and then start the fixing motor 129 in the second fixing component so that the clamping rod 125 in the second fixing component can fix the galvanized steel pipe, and then start the positioning motor 115 to move the second fixing component to the position farthest from the first fixing component. The galvanized steel pipe is moved to the farthest position of the component, and then the transposition motor 137 is started to drive the transposition circular plate 102 to rotate 180 degrees, and then the fixing motor 129 in the first fixing component is started to make the clamping rod 125 in the first fixing component slightly loosen the fixation of the galvanized steel pipe, and then the positioning motor 115 is started to make the end of the galvanized steel pipe move to the outside of the clamping rod 125 in the first fixing component, and then the above steps are repeated to make the thread cutting blade 114 contact the end face of the galvanized steel pipe, and then the driving motor 118 is started to make the galvanized steel pipe rotate, and then the positioning motor 115 is started to make the galvanized steel pipe move towards the direction close to the feed motor 106, that is, to realize the thread processing on the other end of the galvanized steel pipe.

[0046] When it is necessary to process threads on the inner side of the galvanized steel pipe, the rotary electric cylinder 112 is started to adjust the position of the thread cutting blade 114 so that the thread cutting blade 114 processes threads on the inner side of the threaded galvanized steel pipe.

[0047] The present invention is not limited to the above-mentioned specific implementation modes. Various changes made by technicians in the relevant technical field based on the above-mentioned conception without creative work all fall within the protection scope of the present invention.

Claims

1. A galvanized steel pipe end thread processing device, comprising a base (101), characterized in that: The base (101) is provided with a cutting assembly, the cutting assembly comprising a rotary electric cylinder (112), a mounting seat (113) being fixedly mounted on the piston end of the rotary electric cylinder (112), and a thread cutting blade (114) being movably mounted on the mounting seat (113); The base (101) is rotatably mounted with a transposition circular plate (102), and the transposition circular plate (102) is provided with a first fixed component and a second fixed component, and the first fixed component and the second fixed component both include a fan-shaped support frame (108), and the fan-shaped support frame (108) is rotatably mounted with a fan-shaped rack (117), and a fan-shaped support seat 1 (123) is fixedly mounted on the inner side of the fan-shaped rack (117), and a fan-shaped support seat 2 (124) is rotatably mounted on the fan-shaped support seat 1 (123), and a complete circular ring is formed when the fan-shaped support seat 1 (123) and the fan-shaped support seat 2 (124) are engaged, and two clamping racks (131) are symmetrically slidably mounted on the fan-shaped support seat 1 (123). , a clamping rack (131) is also slidably mounted on the second fan-shaped support seat (124), and a clamping rod (125) is fixedly mounted on the end of the clamping rack (131), and a limiting circular block (136) is fixedly mounted on the side of the second fan-shaped support seat (124), and a fan-shaped driving strip plate (122) is rotatably mounted on the first fan-shaped support seat (123), and a fan-shaped limiting strip plate (138) is fixedly mounted on the fan-shaped driving strip plate (122), and a sliding groove cooperating with the fan-shaped limiting strip plate (138) is arranged on the limiting circular block (136), and the limiting circular block (136) and the fan-shaped limiting strip plate (138) are used to realize the fixation between the second fan-shaped support seat (124) and the first fan-shaped support seat (123); The fan-shaped support frame (108) in the first fixed component is fixedly mounted on the transposition circular plate (102), the fan-shaped support frame (108) in the second fixed component is slidably mounted on the transposition circular plate (102), an adjustment screw (116) is rotatably mounted on the transposition circular plate (102), the fan-shaped support frame (108) in the second fixed component and the adjustment screw (116) form a spiral pair, and the axes of the two fan-shaped support frames (108) are on the same straight line; A strip push block (139) is fixedly arranged on the end of the fan-shaped driving strip plate (122) closest to the fan-shaped support seat 2 (124); a fan-shaped closed rack (140) is fixedly installed on the end of the strip push block (139) closest to the axis of the fan-shaped driving strip plate (122); a closed gear (135) is fixedly arranged between the fan-shaped support seat 2 (124) and the corresponding limiting circular block (136); when the fan-shaped closed rack (140) and the closed gear (135) are engaged, a gear rack pair is formed, and friction exists between the fan-shaped support seat 2 (124) and the fan-shaped support seat 1 (123); Two clamping gears (133) are symmetrically rotatably mounted on the fan-shaped support seat 1 (123), and one clamping gear (133) is also rotatably mounted on the fan-shaped support seat 2 (124). The clamping gears (133) are respectively meshed with corresponding clamping racks (131) to form a gear rack pair, and torsion springs are respectively arranged between the clamping gears (133) and the corresponding fan-shaped support seat 1 (123) and fan-shaped support seat 2 (124); Two fan-shaped fixed racks (127) are evenly fixedly arranged on the fan-shaped driving strip plate (122), an arc-shaped strip plate (134) is movably arranged on the second fan-shaped support seat (124), a strip-shaped push block (139) is used to push the arc-shaped strip plate (134) to move, and a fan-shaped fixed rack (127) is also arranged on the arc-shaped strip plate (134), and a transmission gear (132) is fixedly installed on the side of the clamping gear (133), and the transmission gear (132) forms a gear rack pair when it is engaged with the corresponding fan-shaped fixed rack (127).

2. A galvanized steel pipe end thread processing device according to claim 1, characterized in that: The cutting assembly also includes a shift slide (103) slidably mounted on the base (101); a shift screw (104) is also rotatably mounted on the base (101); the shift screw (104) and the shift slide (103) form a spiral pair; a height adjustment slide (107) is slidably mounted on the shift slide (103); a feed slide (111) is slidably mounted on the height adjustment slide (107); the rotary electric cylinder (112) is fixedly mounted on the end of the feed slide (111); a feed screw (110) is rotatably mounted on the height adjustment slide (107); the feed screw (110) and the feed slide (111) form a spiral pair.

3. A galvanized steel pipe end thread processing device according to claim 2, characterized in that: The axes of the fan-shaped support seat frame (108), the fan-shaped rack (117), the fan-shaped driving strip plate (122), the fan-shaped support seat 1 (123), and the fan-shaped limiting strip plate (138) in the same fixed component are on the same straight line. When the fan-shaped support seat 1 (123) and the fan-shaped support seat 2 (124) in the same fixed component form a complete circle, the axis of the arc strip plate (134) and the axis of the fan-shaped limiting strip plate (138) are on the same straight line.

4. A galvanized steel pipe end thread processing device according to claim 3, characterized in that: Two driving gears (119) are symmetrically mounted on the fan-shaped support frame (108) for rotation, and the driving gears (119) and corresponding fan-shaped racks (117) are meshed to form a gear pair. A splined long shaft (120) is fixedly mounted on the two driving gears (119) in the first fixed component. A transmission group (121) is arranged between the two driving gears (119) in the second fixed component, and the splined long shaft (120) respectively forms a spline sliding fit with the corresponding driving gears (119) in the second fixed component.

5. A galvanized steel pipe end thread processing device according to claim 4, characterized in that: An arc-shaped support plate (126) is slidably mounted on each of the fan-shaped support seats (123). A spring is provided between the fan-shaped support seat (123) and the arc-shaped support plate (126). The arc-shaped support plate (126) is used to assist in supporting the galvanized steel pipe when the galvanized steel pipe is installed and fixed.

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