Height adjustment device for pipe processing conveyor line and pipe processing conveyor line

Abstract

The present invention discloses a height adjustment device for a pipe processing conveyor line and a pipe processing conveyor line, and belongs to the technical field of pipe processing. The height adjustment device includes a supporting seat, a fixed seat, a lifting seat, an inclined block and an inclined block driving mechanism. A tension spring is provided between the lifting seat and the fixed seat, a lifting track is provided on the fixed seat, a load-bearing wheel is provided on the lifting seat, at least two support wheels are provided on the fixed seat, an inclined surface is provided on the inclined block, and the inclined block moves in the space between the load-bearing wheel and the support wheel under the action of the inclined block driving mechanism; the inclined block driving mechanism includes an adjusting screw and an adjusting nut threadedly connected to the adjusting screw, and the inclined block is connected to the adjusting nut. The present invention has a simple structure and is easy to adjust. The height of the lifting seat can be adjusted to adapt to pipes of different diameters, so that the axis of the pipe corresponds to the machining center of the gear rolling main machine. There is no need to adjust the height of the gear rolling main machine, so as to avoid affecting the gear rolling accuracy.

Description

Technical Field

[0001] The invention relates to a height adjustment device for a pipe processing conveying line and the pipe processing conveying line, belonging to the technical field of pipe processing. Background Art

[0002] In the field of refrigeration technology, different tooth shapes are generally processed on heat exchange tubes in order to increase the heat exchange area of ​​the heat exchange tubes. At the same time, the tooth shape is designed to enhance the disturbance of the medium during heat exchange to enhance the heat exchange effect.

[0003] The equipment used for processing the tooth shape of pipe fittings is a gear rolling machine, which includes a gear rolling main machine for rolling the pipe fittings and a pipe fitting processing conveyor line arranged on both sides of the gear rolling main machine. The gear rolling main machine realizes the gear rolling processing of the pipe fittings by radial feeding and retracting of the gear rolling tool. The pipe fitting processing conveyor line includes a conveyor line for pipe fitting loading and unloading, and also includes a conveyor line for a through rod for supporting the pipe fittings during the gear rolling process. The pipe fitting loading moves along the conveyor line toward the gear rolling main machine, the through rod moves toward the gear rolling main machine and passes over the gear rolling main machine, and the pipe fitting continues to move after docking with the through rod until the outer end of the pipe fitting reaches the gear rolling station, and then the pipe fitting is rolled and discharged under the action of the gear rolling tool of the gear rolling main machine.

[0004] The gear rolling machine can be used to process pipe fittings of different diameters. The different diameters of pipe fittings mean different processing centers. When the diameter of the pipe to be processed changes from small to large, the diameter processing center increases. Although the pipe processing conveyor line can realize the transportation of pipe fittings and through rods, it cannot correspond to the processing center of the gear rolling main machine, which will affect the processing quality of the pipe fittings. The gear rolling main machine, as the core component of gear rolling, has high processing accuracy requirements. Once the adjustment accuracy of the gear rolling main machine meets the requirements, its height will no longer change, avoiding multiple adjustments that affect the processing accuracy of the gear rolling main machine. Therefore, in order to be suitable for gear rolling processing of pipe fittings with more diameters, the height of the pipe processing conveyor line can only be adjusted. How to quickly and efficiently adjust the height of the pipe processing conveyor line is a problem that needs to be solved urgently. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a height adjustment device for a pipe processing conveying line and a pipe processing conveying line.

[0006] The technical solution of the present invention to solve the above technical problems is as follows: a height adjustment device for a pipe processing conveyor line, comprising a support seat, a fixed seat arranged on the support seat, a lifting seat arranged on the fixed seat, an inclined block and an inclined block driving mechanism, a tension spring is arranged between the lifting seat and the fixed seat, a lifting track for the lifting seat to move up and down is arranged on the fixed seat, a load-bearing wheel acting on the top surface of the inclined block is arranged at the lower part of the lifting seat, at least two support wheels acting on the bottom surface of the inclined block are arranged on the fixed seat, an inclined surface for adjusting the height of the lifting seat is arranged on the inclined block, and the inclined block moves in the space between the load-bearing wheel and the support wheel under the action of the inclined block driving mechanism;

[0007] The inclined block driving mechanism includes an adjusting screw and an adjusting nut threadedly connected to the adjusting screw, the inclined block is connected to the adjusting nut, a pair of mounting blocks for supporting the adjusting screw is provided on the fixing seat, and the adjusting screw is rotatably arranged on the mounting blocks.

[0008] The beneficial effects of the present invention are as follows: when replacing pipes with different diameters, the position of the adjusting nut can be adjusted by adjusting the screw, that is, adjusting the position of the inclined block between the supporting wheel and the load-bearing wheel. The lifting seat can only be lifted and lowered on the fixed seat by the lifting track. When the high position of the inclined surface of the inclined block moves to below the load-bearing wheel, the lifting seat rises. When the low position of the inclined surface of the inclined block moves to below the load-bearing wheel, the lifting seat falls. The height of the lifting seat is adjusted by the horizontal movement of the inclined block. In short, the present invention has a simple structure and is easy to adjust. The height of the lifting seat can be adjusted to adapt to pipes with different diameters, so that the axis of the pipes corresponds to the machining center of the gear rolling main machine. There is no need to adjust the height of the gear rolling main machine, so as to avoid affecting the gear rolling accuracy.

[0009] Based on the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, the inclined block is provided with a positioning notch, the adjusting nut is provided with a positioning protrusion matched with the positioning notch, and the inclined block is connected to the adjusting nut by a fastening bolt.

[0011] The beneficial effect of adopting the above further solution is that the adjusting nut is provided with a threaded hole for installing the fastening bolt, the inclined block is provided with a bolt mounting hole, and the rod of the fastening bolt passes through the bolt mounting hole and is connected to the threaded hole. The positioning notch is used to achieve accurate positioning between the adjusting nut and the inclined block, and the fastening bolt achieves a stable connection between the inclined block and the adjusting nut after the inclined block and the adjusting nut are positioned.

[0012] Furthermore, the lower part of the lifting seat is in a V-shaped structure, and the load-bearing wheel is arranged at the pointed end of the V-shaped structure.

[0013] The beneficial effect of adopting the above further solution is that the design of the V-shaped structure makes it possible for the lifting seat to have no contact with the inclined block except for the bearing wheels, thereby preventing the lifting seat from interfering with the movement of the inclined block during the adjustment of the inclined block.

[0014] Furthermore, the supporting wheel is arranged on the fixing seat via a wheel seat.

[0015] The beneficial effect of adopting the above further scheme is that at least two supporting wheels are arranged on the wheel seat, and the wheel seat is fixed on the fixing seat. When the supporting wheels are worn and need to be replaced, the wheel seat can be directly disassembled for replacement, and the installation positioning is accurate to facilitate subsequent maintenance.

[0016] Furthermore, the support seat includes a base and a column arranged on the base, the base is provided with expansion bolts for installation, and clamping bolts and supporting bolts are provided between the base and the column.

[0017] The beneficial effect of adopting the above further solution is that the height adjustment within a large range can be achieved through the support seat, such as selecting a suitable height of the column to meet the height requirements of the pipe fittings, and the height adjustment within a small range of different pipe diameters can be achieved by adjusting the position of the inclined block; the clamping bolt is used for the connection between the base and the column; the support bolt is used to adjust the flatness of the support surface of the upper support plate of the column. The rod end of the support bolt passes through the lower plate of the column and is threadedly connected to the base to achieve the connection between the column and the base; the support bolt is threadedly connected to the lower plate of the column, and its rod end is pressed against the upper surface of the base.

[0018] Furthermore, a shield is provided between the mounting blocks, the adjusting screw and the adjusting nut are arranged in the shield, and a movable window is provided on the shield for the lateral movement of the adjusting nut.

[0019] The beneficial effect of adopting the above further solution is that the transmission between the adjusting screw and the adjusting nut is protected to prevent other substances from interfering with the driving of the inclined block.

[0020] Furthermore, a pair of guide blocks are provided on the fixing seat, and the guide blocks are provided with the lifting track.

[0021] The beneficial effect of adopting the above further solution is that the lifting track can be detachably mounted on the fixed seat, and if the track is worn out after long-term use, the guide block can be directly replaced without replacing the fixed seat, thereby reducing subsequent maintenance costs.

[0022] The present invention also relates to a pipe processing conveyor line, comprising a pipe loading and unloading conveyor line and a mandrel conveyor line, wherein the pipe loading and unloading conveyor line comprises a loading and unloading conveyor frame, and the mandrel conveyor line comprises a mandrel conveyor frame, and further comprises a height adjustment device for the pipe processing conveyor line as described above, wherein at least two of the height adjustment devices for the pipe processing conveyor line are arranged at the bottom of the loading and unloading conveyor frame, and at least two of the height adjustment devices for the pipe processing conveyor line are arranged at the bottom of the mandrel conveyor frame, and the upper part of the lifting seat is provided with a bearing platform connected to the loading and unloading conveyor frame or the mandrel conveyor frame.

[0023] The beneficial effect of the present invention is that the pipe loading and unloading conveyor lines and the through-rod conveyor lines are respectively arranged on the front and rear sides of the gear rolling main machine, and the height of the corresponding conveyor frame can be adjusted according to the different pipe diameters of the pipes, especially the height of the pipes and the through-rods near the position of the gear rolling main machine, to ensure that the axis of the pipes and the through-rods corresponds to the machining center position of the gear rolling main machine. The structure is simple and the adjustment is convenient, which avoids affecting the machining accuracy of the gear rolling main machine and has a wider application.

[0024] Furthermore, the pipe loading and unloading conveyor line also includes a pushing mechanism arranged on the loading and unloading conveyor frame and a plurality of pipe roller assemblies arranged along the length direction of the loading and unloading conveyor frame, the pushing mechanism includes a pushing rod and a pushing driving mechanism, a follower pipe head is provided on the rod head of the pushing rod, a ring platform for positioning the pipe is provided on the follower pipe head, the follower pipe head is rotatably arranged on the pushing rod, the pushing driving mechanism includes a driving wheel, a driven wheel, a pushing motor and a synchronous belt wrapped around the driving wheel and the driven wheel, the pushing rod is connected to the synchronous belt through the pushing frame, the pushing motor is connected to the driving wheel through a clutch, the clutch engages the power transmission between the driving motor and the driving wheel when the pipe is loaded, and the clutch cuts off the power transmission between the driving motor and the driving wheel when the pipe is discharged.

[0025] The beneficial effect of adopting the above further scheme is that when loading, the active wheel rotates under the action of the driving motor, the push rod pushes the pipe fitting toward the gear rolling station, and continues to move after docking with the piercing rod. The piercing rod resets after the pipe fitting moves a certain distance, and the pipe fitting moves to the gear rolling station under the action of the push rod. When discharging, the clutch cuts off the power transmission between the driving motor and the active wheel, and the pipe fitting rotates while rolling and discharging. The pipe fitting rotates and discharges under the action of the gear rolling tool, pushing the push rod back and can rotate with the pipe fitting. The push rod and the follower pipe head maintain the constraint on the pipe end, which reduces the vibration of the pipe fitting during processing and discharging, reduces noise, especially the vibration of the free end of the pipe fitting. At the same time, after the clutch cuts off the power transmission, the push rod resets under the push of the pipe fitting, and the follower pipe head is always assembled with the pipe fitting and rotates with it, which can also reduce or even avoid the throwing out of the cutting fluid in the pipe.

[0026] Furthermore, the piercing rod conveying line also includes a piercing rod arranged on the piercing rod conveying frame, a driving cylinder for pushing the piercing rod to move, and a plurality of piercing rod roller assemblies arranged along the length direction of the piercing rod conveying frame. The driving cylinder is arranged on the piercing rod conveying frame, and the piston rod of the driving cylinder is connected to the piercing rod through a connecting plate, and the butt end of the piercing rod is a pointed structure.

[0027] The beneficial effect of adopting the above-mentioned further scheme is that the through rod needs to reach the docking position first and wait for docking with the pipe fitting. After walking a certain distance with the pipe fitting, the through rod returns to the gear rolling station to support the pipe fitting being processed. The movement of the through rod on the through rod roller assembly is achieved by driving the cylinder, specifically, the extension and retraction of the piston rod of the driving cylinder completes the movement of the through rod on the through rod roller assembly, which is convenient to drive.

[0028] Furthermore, the through-rod conveying line also includes a locking and positioning mechanism, which includes a locking seat, a locking cylinder and a locking plate arranged on the locking seat, the locking seat is arranged on the through-rod conveying frame, the locking plate is connected to the piston rod of the locking cylinder, the locking plate is provided with a bayonet for locking the through-rod, and the locking seat is provided with a slide rail for guiding the up and down movement of the locking plate.

[0029] The beneficial effect of adopting the above-mentioned further scheme is that the through rod is reset, and the butt end of the through rod is used to support the pipe fitting at the gear rolling station. The pipe fitting passes through the through rod and reaches the gear rolling station under the push of the push rod. The clutch cuts off the power transmission between the drive motor and the driving wheel, and the gear rolling machine performs gear rolling on the pipe fitting. The pipe fitting rotates and discharges the material while gear rolling. The push rod retreats under the push of the pipe fitting. During the gear rolling process of the pipe fitting, vibration will occur during the rotation, and the through rod will apply extrusion pressure to the driving cylinder. In order to optimize the force of the driving cylinder, a locking and positioning mechanism is added to the through rod conveying frame. After the through rod and the pipe fitting are butt-jointed and reset, before the gear rolling process, the locking cylinder is actuated, and the bayonet of the locking plate is stuck on the through rod to lock the through rod, so as to prevent the through rod from applying force to the driving cylinder, thereby protecting the driving cylinder and extending its service life.

[0030] Furthermore, the through-rod conveyor line also includes at least one clamping mechanism, which includes a clamping frame, a clamping arm, a clamping roller and a clamping cylinder. The clamping frame and the clamping cylinder are respectively arranged on the through-rod conveyor frame, the middle part of the clamping arm is hinged to the clamping frame, the axle of the clamping roller is connected to one end of the clamping arm, and the piston rod of the clamping cylinder is connected to the other end of the clamping arm.

[0031] The beneficial effect of adopting the above-mentioned further scheme is that the through rod must pass through the entire pipe fitting during tooth rolling. The pipe fitting is rotated and discharged while being toothed under the action of the tooth rolling machine. The rotation of the pipe fitting during the tooth rolling process causes the internal through rod to vibrate. Although the through rod is supported and positioned by the through rod roller assembly, the vibration of the through rod cannot be reduced or even avoided. Therefore, a clamping mechanism is added to achieve a clamping effect when the through rod supports the pipe fitting for tooth rolling. The piston rod of the clamping cylinder is extended, and the clamping roller swings downward on the through rod with the hinged position of the clamping arm and the clamping frame as the fulcrum. The combined action of the roller assembly and the clamping roller reduces the vibration of the through rod during the tooth rolling process, reduces noise, and achieves stable support for the pipe fitting during the tooth rolling process of the through rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of the height adjustment device of the present invention;

[0033] Figure 2 It is a schematic diagram of the front view structure of the height adjustment device of the present invention;

[0034] Figure 3 It is a structural schematic diagram of the fixed seat and the lifting seat of the present invention in a coordinated state;

[0035] Figure 4 It is a structural schematic diagram of the matching state of the adjusting screw rod and the inclined block of the present invention;

[0036] Figure 5 It is a structural schematic diagram of the inclined block, the load-bearing wheel and the support beam in the present invention;

[0037] Figure 6 It is a structural schematic diagram of the lifting seat of the present invention;

[0038] Figure 7 It is a structural schematic diagram of the inclined block of the present invention;

[0039] Figure 8 This is a structural schematic diagram of the pipe processing conveying line of the present invention at angle 1;

[0040] Fig. 9 for Figure 8 A partial enlarged view of the middle part;

[0041] Fig.10 for Figure 8 A partial enlarged view of point B in the middle;

[0042] Fig.11 This is a structural schematic diagram of the pipe processing conveying line of the present invention at angle 2;

[0043] Fig.12 It is a schematic diagram of the structure of the clutch, the pusher motor and the driving wheel in the matching state of the present invention;

[0044] Fig.13 It is a structural schematic diagram of the core-penetrating rod conveyor line of the present invention;

[0045] Fig.14 It is a structural schematic diagram of the locking and positioning mechanism of the present invention;

[0046] Fig.15 It is a structural schematic diagram of the pipe loading and unloading conveying line of the present invention;

[0047] In the figure, 1, support seat; 101, base; 102, column; 2, fixed seat; 3, lifting seat; 301, V-shaped structure; 302, bearing platform; 4, inclined block; 401, inclined surface; 402, positioning notch; 403, bolt mounting hole; 5, tension spring; 6, bearing wheel; 7, supporting wheel; 8, adjusting screw; 9, adjusting nut; 10, mounting block; 11, wheel seat; 12, expansion bolt; 13, clamping bolt; 14, supporting bolt; 15, loading and unloading conveying frame; 16, push rod; 17, pushing motor; 18, Clutch; 181, clutch coil; 182, clutch fixing part; 183, clutch rotating part; 19, pusher rack; 20, pipe roller assembly; 21, driving wheel; 22, driven wheel; 23, synchronous belt; 24, through-rod conveyor rack; 25, through-rod; 26, driving cylinder; 27, locking cylinder; 28, locking plate; 281, bayonet; 29, connecting plate; 30, locking seat; 31, clamping rack; 32, clamping arm; 33, clamping roller; 34, clamping cylinder; 35, through-rod roller assembly; 36, gear rolling main machine. DETAILED DESCRIPTION

[0048] The principles and features of the present invention are described below in conjunction with examples. The examples are only used to explain the present invention and are not used to limit the scope of the present invention.

[0049] like Figure 1-Figure 7 As shown, a height adjustment device for a pipe processing conveyor line comprises a support seat 1, a fixed seat 2 arranged on the support seat 1, a lifting seat 3 arranged on the fixed seat 2, an inclined block 4 and an inclined block driving mechanism, a tension spring 5 is arranged between the lifting seat 3 and the fixed seat 2, a lifting track for the lifting seat 3 to move up and down is arranged on the fixed seat 2, a load-bearing wheel 6 acting on the top surface of the inclined block 4 is arranged at the lower part of the lifting seat 3, at least two support wheels 7 acting on the bottom surface of the inclined block 4 are arranged on the fixed seat 2, an inclined surface 401 for adjusting the height of the lifting seat 3 is arranged on the inclined block 4, and the inclined block 4 moves in the space between the load-bearing wheel 6 and the support wheel 7 under the action of the inclined block driving mechanism;

[0050] The inclined block driving mechanism includes an adjusting screw 8 and an adjusting nut 9 threadedly connected to the adjusting screw 8. The inclined block 4 is connected to the adjusting nut 9. A pair of mounting blocks 10 for supporting the adjusting screw 8 are provided on the fixed seat 2. The adjusting screw 8 is rotatably set on the mounting blocks 10.

[0051] The inclined block 4 is provided with a positioning notch 402, and the adjusting nut 9 is provided with a positioning protrusion matched with the positioning notch 402. The inclined block 4 is connected to the adjusting nut 9 through a fastening bolt. The adjusting nut 9 is provided with a threaded hole for installing the fastening bolt, and the inclined block 4 is provided with a bolt mounting hole 403. The rod of the fastening bolt passes through the bolt mounting hole 403 and is connected to the threaded hole. The positioning notch 402 is used to achieve accurate positioning between the adjusting nut 9 and the inclined block 4, and the fastening bolt achieves a stable connection between the inclined block 4 and the adjusting nut 9 after the inclined block 4 and the adjusting nut 9 are positioned.

[0052] The lower part of the lifting seat 3 is in a V-shaped structure 301, and the bearing wheel 6 is arranged at the pointed end of the V-shaped structure 301. The design of the V-shaped structure 301 ensures that except for the bearing wheel 6 on the lifting seat 3, the rest of the lifting seat 3 is not in contact with the inclined block 4, so as to prevent the lifting seat 3 from interfering with the movement of the inclined block 4 during the adjustment process of the inclined block 4.

[0053] The support wheel 7 is arranged on the fixed seat 2 through the wheel seat 11. At least two support wheels 7 are arranged on the wheel seat 11, and the wheel seat 11 is fixed on the fixed seat 2. When the support wheel 7 is worn and needs to be replaced, the wheel seat 11 can be directly disassembled for replacement, and the installation positioning is accurate and convenient for subsequent maintenance.

[0054] The support seat 1 includes a base 101 and a column 102 arranged on the base 101. The base 101 is provided with an expansion bolt 12 for installation. A clamping bolt 13 for connecting the base 101 and the column 102 and a support bolt 14 for adjusting the flatness of the support surface of the column 102 are provided between the base 101 and the column 102. A large range of height adjustment can be achieved through the support seat 1, such as selecting a suitable height of the column 102 to meet the height requirement of the pipe fitting. The height adjustment in a small range of different pipe diameters can be achieved by adjusting the position of the inclined block 4; the rod end of the support bolt 14 passes through the lower plate of the column 102 and is threadedly connected to the base 101 to achieve the connection between the column 102 and the base 101; the support bolt 14 is used to adjust the level of the support surface of the upper support plate of the column 102; specifically, the support bolt 14 is threadedly connected to the lower plate of the column 102, and its rod end is pressed against the upper surface of the base 101. Figure 1 As shown, two clamping bolts 13 are provided, and are respectively located at both sides of the column 102. Four supporting bolts 14 are provided, and are respectively located at the four corners of the column 102.

[0055] A shield is also provided between the mounting blocks 10, the adjusting screw 8 and the adjusting nut 9 are arranged in the shield, and a movable window is provided on the shield for the lateral movement of the adjusting nut 9. The transmission between the adjusting screw 8 and the adjusting nut 9 is protected to prevent other substances from interfering with the driving of the inclined block 4.

[0056] The shield is also provided with a fixing bolt for locking the adjusting screw 8 to stably maintain the adjusted height.

[0057] A pair of guide blocks are provided on the fixing seat 2, and the lifting rail is provided on the guide blocks. The lifting rail is detachably mounted on the fixing seat 2. If the rail is worn after long-term use, the guide blocks can be directly replaced without replacing the fixing seat 2, thereby reducing subsequent maintenance costs.

[0058] An operating handle is provided on the adjusting screw 8. Adjustment is more convenient by rotating the operating handle.

[0059] like Figure 8-Figure 15 As shown, the present invention also relates to a pipe processing conveyor line, including a pipe loading and unloading conveyor line and a core rod conveyor line, the pipe loading and unloading conveyor line includes a loading and unloading conveyor frame 15, the core rod conveyor line includes a core rod conveyor frame 24, and also includes a height adjustment device for the pipe processing conveyor line as described above, at least two of the height adjustment devices for the pipe processing conveyor line are arranged at the bottom of the loading and unloading conveyor frame 15, at least two of the height adjustment devices for the pipe processing conveyor line are arranged at the bottom of the core rod conveyor frame 24, and the upper part of the lifting seat 3 is provided with a bearing platform 302 connected to the loading and unloading conveyor frame 15 or the core rod conveyor frame 24.

[0060] The pipe loading and unloading conveyor line also includes a pushing mechanism arranged on the loading and unloading conveyor frame 15 and a plurality of pipe roller assemblies 20 arranged along the length direction of the loading and unloading conveyor frame 15, the pushing mechanism includes a push rod 16 and a pushing drive mechanism, a follower pipe head is provided on the rod head of the push rod 16, a ring platform for positioning the pipe is provided on the follower pipe head, and the follower pipe head is rotatably arranged on the push rod 16, the pushing drive mechanism includes a driving wheel 21, a driven wheel 22, a pushing motor 17 and a synchronous belt 23 wrapped around the driving wheel 21 and the driven wheel 22, the push rod 16 is connected to the synchronous belt 23 through a pushing frame 19, the pushing motor 17 is connected to the driving wheel 21 through a clutch 18, the clutch 18 engages the power transmission between the drive motor and the driving wheel 21 when the pipe is loaded, and the clutch 18 cuts off the power transmission between the drive motor and the driving wheel 21 when the pipe is discharged. During feeding, the driving wheel 21 rotates under the action of the driving motor, and the push rod 16 pushes the pipe fitting toward the gear rolling station, and continues to move after docking with the piercing rod 25. The piercing rod 25 resets after the pipe fitting moves a distance, and the pipe fitting moves to the gear rolling station under the action of the push rod 16. During discharging, the clutch 18 cuts off the power transmission between the driving motor and the driving wheel 21, and the pipe fitting rotates while gear rolling and discharging. The pipe fitting rotates and discharging under the action of the gear rolling tool and pushes the push rod 16 back, which can rotate with the pipe fitting. The push rod 16 and the follower pipe head maintain the constraint on the pipe end, which reduces the vibration of the pipe fitting during discharging, reduces noise, especially the vibration of the free end of the pipe fitting. At the same time, after the clutch 18 cuts off the power transmission, the push rod 16 resets under the push of the pipe fitting, and the follower pipe head is always assembled with the pipe fitting and rotates with it, which can also reduce or even avoid the throwing out of the cutting fluid in the pipe.

[0061] The pipe roller assembly 20 includes a pair of pipe supporting rollers, and the wheel axle ends of the pipe supporting rollers are respectively arranged on the loading and unloading conveying frame 15 through roller frames.

[0062] The clutch 18 includes a clutch coil 181, a clutch fixing part 182 and a clutch rotating part 183. The clutch fixing part 182 is connected to the output shaft through a sliding key. The clutch rotating part 183 is rotatably arranged on the output shaft. The driving wheel 21 is rotatably arranged on the output shaft, and the driving wheel 21 is connected to the clutch rotating part 183. The clutch fixing part 182 rotates with the output shaft, and there is a 1mm gap between the clutch fixing part 182 and the clutch rotating part 183. The electromagnetic clutch coil 181 is powered on and off to achieve the engagement and disengagement between the clutch fixing part 182 and the clutch rotating part 183. The output shaft can be the motor shaft of the drive motor, or it can be an independent shaft, and the shaft can be connected to the output shaft of the drive motor.

[0063] The piercing rod conveyor line also includes a piercing rod 25 arranged on the piercing rod conveyor frame 24, a driving cylinder 26 for pushing the piercing rod 25 to move, and a plurality of piercing rod roller assemblies 35 arranged along the length direction of the piercing rod conveyor frame 24. The driving cylinder 26 is arranged on the piercing rod conveyor frame 24, and the piston rod of the driving cylinder 26 is connected to the piercing rod 25 through a connecting plate 29. The butt end of the piercing rod 25 is a pointed structure. The piercing rod 25 needs to first reach the butt position to wait for butt connection with the pipe fitting, and after the pipe fitting moves a certain distance after butt connection with the pipe fitting, the piercing rod 25 returns to the gear rolling station to support the pipe fitting for gear rolling processing, and the movement of the piercing rod on the piercing rod roller assembly 35 is realized by the driving cylinder 26, specifically, the piston rod of the driving cylinder 26 is extended and retracted to complete the movement of the piercing rod 25 on the piercing rod roller assembly 35, and the driving is convenient.

[0064] The through-rod roller assembly 35 includes a pair of rod supporting rollers, and the wheel axle ends of the rod supporting rollers are respectively arranged on the through-rod conveying frame 24 through roller frames.

[0065] The through-rod conveyor line also includes a locking and positioning mechanism, which includes a locking seat 30, a locking cylinder 27 and a locking plate 28 arranged on the locking seat 30. The locking seat 30 is arranged on the through-rod conveyor frame 24, and the locking plate 28 is connected to the piston rod of the locking cylinder 27. The locking plate 28 is provided with a bayonet 281 for locking the through-rod 25, and the locking seat 30 is provided with a slide rail for guiding the up and down movement of the locking plate 28. The through rod 25 is reset, and the butt end of the through rod 25 is used to support the pipe fitting at the gear rolling station. The pipe fitting passes through the through rod 25 and reaches the gear rolling station under the push of the push rod 16. The clutch 18 cuts off the power transmission between the drive motor and the driving wheel 21. The gear rolling machine performs gear rolling on the pipe fitting. The pipe fitting rotates and discharges while gear rolling. The push rod 16 retreats under the push of the pipe fitting. During the gear rolling process of the pipe fitting, vibration will occur during the rotation of the pipe fitting. The through rod 25 will apply an extrusion force to the driving cylinder 26. In order to optimize the force applied to the driving cylinder 26, a locking and positioning mechanism is added to the through rod conveying frame 24. After the through rod 25 is butt-jointed and reset with the pipe fitting, before the gear rolling process, the locking cylinder 27 is actuated, and the bayonet 281 of the locking plate 28 is stuck on the through rod 25 to lock the through rod 25, so as to prevent the through rod 25 from applying force to the driving cylinder 26, thereby protecting the driving cylinder 26 and extending its service life.

[0066] The through-rod conveyor line also includes at least one clamping mechanism, which includes a clamping frame 31, a clamping arm 32, a clamping roller 33 and a clamping cylinder 34. The clamping frame 31 and the clamping cylinder 34 are respectively arranged on the through-rod conveyor frame 24. The middle part of the clamping arm 32 is hinged to the clamping frame 31, the axle of the clamping roller 33 is connected to one end of the clamping arm 32, and the piston rod of the clamping cylinder 34 is connected to the other end of the clamping arm 32. The through rod 25 is to penetrate the entire pipe during the gear rolling process. The pipe rotates and discharges while the gear rolling machine is in action. The rotation of the pipe during the gear rolling process causes the internal through rod 25 to vibrate. Although the through rod 25 is supported and positioned by the through rod roller assembly 35, the vibration of the through rod 25 cannot be reduced or even avoided. Therefore, a clamping mechanism is added. When the through rod 25 supports the pipe for gear rolling, the clamping mechanism acts, the piston rod of the clamping cylinder 34 extends, and the clamping roller 33 swings downward on the through rod 25 with the hinged position of the clamping arm 32 and the clamping frame 31 as the rotation fulcrum. The joint action of the roller assembly and the clamping roller 33 reduces the vibration of the through rod 25 during the gear rolling process, reduces noise, and realizes the stable support of the through rod 25 during the gear rolling process. The clamping frame 31 can be a roller frame of the through rod roller assembly 35, or can be set on the through rod conveying frame 24 through the roller frame.

[0067] The pipe loading and unloading conveyor line and the mandrel conveyor line are respectively arranged at the front and rear of the gear rolling main machine 36. The height of the corresponding pipe loading and unloading conveyor frame 15 and the mandrel conveyor line can be adjusted according to the different pipe diameters of the pipes. During the adjustment, the rotation angle of the adjusting screw 8 of each height adjustment device is ensured to be consistent, and the rapid adjustment of each height adjustment device can be achieved, which can meet the support height requirements of the pipes to be processed, and ensure that the axis of the pipes and the mandrel 25 corresponds to the processing center position of the gear rolling main machine 36. The structure is simple, the adjustment is fast and convenient, which can meet the gear rolling requirements of the pipes, and avoid affecting the processing accuracy of the gear rolling main machine 36, and has a wider application.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pipe processing conveyor line, comprising a pipe loading and unloading conveyor line and a mandrel conveyor line, the pipe loading and unloading conveyor line comprising a loading and unloading conveyor frame (15), the mandrel conveyor line comprising a mandrel conveyor frame (24), and further comprising a plurality of height adjustment devices for the pipe processing conveyor line, at least two of the pipe processing conveyor line height adjustment devices being arranged at the bottom of the loading and unloading conveyor frame (15), at least two of the pipe processing conveyor line height adjustment devices being arranged at the bottom of the mandrel conveyor frame (24), and a bearing platform (302) connected to the loading and unloading conveyor frame (15) or the mandrel conveyor frame (24) being arranged at the upper part of a lifting seat (3) of the pipe processing conveyor line height adjustment device; The height adjustment device for the pipe processing conveyor line comprises a support seat (1), a fixed seat (2) arranged on the support seat (1), a lifting seat (3) arranged on the fixed seat (2), an inclined block (4) and an inclined block driving mechanism, a tension spring (5) is arranged between the lifting seat (3) and the fixed seat (2), a lifting track for the lifting seat (3) to move up and down is arranged on the fixed seat (2), a bearing wheel (6) acting on the top surface of the inclined block (4) is arranged at the lower part of the lifting seat (3), at least two supporting wheels (7) acting on the bottom surface of the inclined block (4) are arranged on the fixed seat (2), an inclined surface (401) for adjusting the height of the lifting seat (3) is arranged on the inclined block (4), and the inclined block (4) moves in the space between the bearing wheel (6) and the supporting wheel (7) under the action of the inclined block driving mechanism; The inclined block driving mechanism comprises an adjusting screw (8) and an adjusting nut (9) threadedly connected to the adjusting screw (8); the inclined block (4) is connected to the adjusting nut (9); a pair of mounting blocks (10) for supporting the adjusting screw (8) are provided on the fixing seat (2); the adjusting screw (8) is rotatably mounted on the mounting blocks (10); It is characterized in that The pipe loading and unloading conveyor line further comprises a pushing mechanism arranged on the loading and unloading conveyor frame (15) and a plurality of pipe roller assemblies (20) arranged along the length direction of the loading and unloading conveyor frame (15), the pushing mechanism comprising a pushing rod (16) and a pushing driving mechanism, a follower pipe head is provided on the rod head of the pushing rod (16), a ring platform for positioning the pipe is provided on the follower pipe head, the pushing driving mechanism comprises a driving wheel (21), a driven wheel (22), a pushing motor (17) and a ring platform The push rod (16) is connected to the synchronous belt (23) on the driving wheel (21) and the driven wheel (22) through a pushing frame (19), and the pushing motor (17) is connected to the driving wheel (21) through a clutch (18). When the pipe is loaded, the clutch (18) engages the power transmission between the pushing motor and the driving wheel (21), and when the pipe is unloaded, the clutch (18) cuts off the power transmission between the pushing motor and the driving wheel (21).

2. The pipe processing and conveying line according to claim 1, characterized in that: The inclined block (4) is provided with a positioning notch (402), the adjusting nut (9) is provided with a positioning protrusion matching the positioning notch (402), and the inclined block (4) is connected to the adjusting nut (9) via a fastening bolt.

3. The pipe processing and conveying line according to claim 1, characterized in that: The lower part of the lifting seat (3) is in a V-shaped structure (301), and the load-bearing wheel (6) is arranged at the pointed end of the V-shaped structure (301).

4. The pipe processing and conveying line according to claim 1, characterized in that: The supporting wheel (7) is arranged on the fixing seat (2) via a wheel seat (11).

5. The pipe processing and conveying line according to claim 1, characterized in that: The support seat (1) comprises a base (101) and a column (102) arranged on the base (101); an expansion bolt (12) for installation is provided on the base (101); and a clamping bolt (13) and a supporting bolt (14) are provided between the base (101) and the column (102).

6. The pipe processing and conveying line according to any one of claims 1 to 5, characterized in that: The piercing rod conveyor line further comprises a piercing rod (25) arranged on the piercing rod conveyor frame (24), a driving cylinder (26) for pushing the piercing rod (25) to move, and a plurality of piercing rod roller assemblies (35) arranged along the length direction of the piercing rod conveyor frame (24), wherein the driving cylinder (26) is arranged on the piercing rod conveyor frame (24), the piston rod of the driving cylinder (26) is connected to the piercing rod (25) via a connecting plate (29), and the butt end of the piercing rod (25) is a pointed structure.

7. The pipe processing and conveying line according to claim 6, characterized in that: The through-rod conveyor line further comprises a locking and positioning mechanism, the locking and positioning mechanism comprising a locking seat (30), a locking cylinder (27) and a locking plate (28) arranged on the top of the locking seat (30); the locking seat (30) is arranged on the through-rod conveyor frame (24); the locking plate (28) is connected to the piston rod of the locking cylinder (27); the locking plate (28) is provided with a bayonet (281) for locking the through-rod (25); and the locking seat (30) is provided with a slide rail for guiding the up and down movement of the locking plate (28).

8. The pipe processing and conveying line according to any one of claims 1 to 5, characterized in that: The through-rod conveyor line further comprises at least one clamping mechanism, which comprises a clamping frame (31), a clamping arm (32), a clamping roller (33) and a clamping cylinder (34). The clamping frame (31) and the clamping cylinder (34) are respectively arranged on the through-rod conveyor frame (24). The middle part of the clamping arm (32) is hinged to the clamping frame (31), the wheel axle of the clamping roller (33) is connected to one end of the clamping arm (32), and the piston rod of the clamping cylinder (34) is connected to the other end of the clamping arm (32).

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