MTS shaft steel pipe straightening and cutting equipment and straightening and cutting method

Abstract

The present invention relates to the technical field of steel pipe processing, and discloses straightening and cutting equipment for MTS shaft steel pipes, including: a straightening machine, wherein a straightening feed conveying track and a straightening discharge conveying track are respectively arranged at both ends of the straightening machine; a cutting machine, wherein the cutting machine is arranged on the side of the straightening machine, and a cutting feed conveying track and a cutting discharge conveying track are respectively arranged at both ends of the cutting machine, and the cutting feed conveying track corresponds to the straightening discharge conveying track; a position sensor, wherein the position sensor is used to collect position information of the MTS shaft steel pipe; a receiving ring unit, wherein the receiving ring unit is arranged on the conveying track, and based on the collected signal of the position sensor, the receiving ring unit is started to clamp the MTS shaft steel pipe. The present invention integrates the straightening machine and the cutting machine into one, shortens the length of the production line, and the receiving ring unit stably clamps the MTS shaft steel pipe, reduces displacement during the conveying process, and improves the straightening and cutting accuracy. The position sensor detects the position of the MTS shaft steel pipe, and provides a basis for the clamping and releasing of each receiving ring unit, thereby achieving coordinated cooperation.

Description

Technical Field

[0001] The present invention relates to the technical field of steel pipe processing, and more specifically, to straightening and cutting equipment and a straightening and cutting method for MTS shaft steel pipes. Background Art

[0002] MTS shafts are hollow shafts made from a single piece of material. They have the highest potential balance of natural bending frequency and torsional stiffness at the lowest weight. When the steel tubes of MTS shafts are produced, in order to achieve a more standard straight tube, the produced steel tubes need to be straightened and cut into the required length.

[0003] In the prior art, such as the invention patent with application number CN202010744553.3, a thin-walled metal pipe precision straightening unit is disclosed, including a pipe inlet conveying device, an infrared sensor device, a guide device, a straightening main device and a pipe outlet conveying device, wherein the straightening main device includes a main frame, and five groups of straightening units are arranged in the main frame. The straightening units all include upper roller system and lower roller system correspondingly arranged up and down, and the upper roller system and the lower roller system realize the reverse bending amount and flattening amount in the pipe straightening process. The upper roller system and the lower roller system drive the worm gear assembly through adjusting the motor to realize synchronous up and down movement, thereby forming the elevation difference of the five groups of straightening units and adjusting the opening degree according to different pipe specifications to meet the requirements of raw materials with different bending forms.

[0004] After straightening the steel pipe, this device stores the steel pipe in a flexible collection device, and then transfers the steel pipe to the next cutting process. Since the steel pipe is long, the production line is long; and during the transfer of the steel pipe, the guide roller is used to rotate to transport the steel pipe. During the transportation and straightening process, the steel pipe will shift, and the straightening effect is not ideal.

[0005] Therefore, it is necessary to propose a straightening and cutting device and a straightening and cutting method for MTS shaft steel pipe to at least partially solve the problems existing in the prior art. Summary of the invention

[0006] A series of simplified concepts are introduced in the Summary of the Invention, which will be further described in detail in the Detailed Description of the Invention. The Summary of the Invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0007] In order to at least partially solve the above problems, the present invention provides a straightening and cutting device for MTS shaft steel pipe, characterized in that it includes:

[0008] A straightening machine, with a straightening feed conveying track and a straightening discharge conveying track respectively arranged at both ends of the straightening machine;

[0009] Cutting machine, the cutting machine is arranged on the side of the straightening machine, and a cutting feed conveying track and a cutting discharge conveying track are arranged at both ends of the cutting machine respectively, and the cutting feed conveying track corresponds to the straightening discharge conveying track;

[0010] Position sensor: The position sensor is used to collect the position information of the MTS shaft steel pipe;

[0011] The receiving ring unit is arranged on the conveying track, and based on the acquisition signal of the position sensor, the receiving ring unit is started to clamp the MTS shaft steel pipe.

[0012] Preferably, a steel pipe pushing mechanism is provided on the straightening discharging conveying track and the cutting discharging conveying track.

[0013] Preferably, the straightening and cutting equipment for the MTS shaft steel pipe also includes: a material rack, which is arranged on the side of the straightening feed conveyor track and the side of the cutting discharge conveyor track, between the cutting feed conveyor track and the straightening discharge conveyor track, and between the material rack and the conveyor track, a material guide plate is obliquely arranged.

[0014] Preferably, the material receiving ring unit comprises a plurality of material receiving ring groups arranged at intervals, each material receiving ring group comprises two material receiving ring bodies, and the material receiving ring body comprises:

[0015] A lower ring body, which is arranged on a cutting feed conveying track;

[0016] The upper ring body is arranged above the lower ring body, one end of the upper ring body is rotatably connected to the lower ring body through a rotating shaft, and the end of the rotating shaft is connected to the output end of the ring body driving motor; the upper ring body and the lower ring body are combined to form a steel pipe accommodating space; the other end of the upper ring body is provided with a magnetic strip, corresponding to the electromagnetic strip at the other end of the lower ring body; the inner walls of the upper ring body and the lower ring body are both provided with rubber pads.

[0017] Preferably, the maximum value of the upper ring body expansion angle is set to 90 degrees.

[0018] Preferably, a clamping assembly is provided in the lower ring body, and the clamping assembly includes:

[0019] An arc-shaped bottom plate, the arc-shaped bottom plate is slidably connected to the groove at the bottom of the lower ring body, a cylinder is arranged at the bottom end of the arc-shaped bottom plate, a lug is arranged on the side of the arc-shaped bottom plate, the lug is slidably connected to the guide grooves on both sides of the groove, and a first spring is connected to one end of the lug and the guide groove;

[0020] The support plate is connected to the bottom end of the groove, a second spring is sleeved on the cylinder, and two ends of the second spring are in contact with the support plate and the arc bottom plate.

[0021] Preferably, the conveying track comprises:

[0022] A transmission screw, which is rotatably arranged in a transmission groove of the conveying track;

[0023] A transmission box, which is arranged at the end of the conveying track, and the output end of the transmission box is connected to the transmission screw;

[0024] Transmission blocks, multiple transmission blocks are slidably connected in the transmission groove, and the transmission blocks are connected to the transmission screw, and the top of the transmission block is simultaneously connected to the two lower ring bodies in the material receiving ring group.

[0025] Preferably, the transmission box comprises:

[0026] The main shaft is rotatably connected to the transmission box, the main shaft and the transmission screw are vertically arranged, the main shaft is connected to the first bevel gear, one end of the main shaft is connected to the bearing seat, and the other end passes through the transmission box and is connected to the motor;

[0027] The output shaft is rotatably connected to the transmission box, one end of the output shaft is connected to the second bevel gear, and the second bevel gear is meshed and connected with the first bevel gear, and the other end of the output shaft is connected to the transmission screw.

[0028] Preferably, the transmission box also includes: a multi-point limiting wheel, the rotating shaft of the multi-point limiting wheel is connected to the main shaft, a plurality of limiting holes are evenly arranged on the multi-point limiting wheel, an elastic limiting rod adapted to the limiting holes is arranged in the transmission box, and the elastic limiting rod is provided with an arc-shaped end.

[0029] Preferably, a protection unit is provided on the arc bottom plate, and the protection unit comprises:

[0030] A resonance tank, the resonance tank is arranged at the bottom of the cylinder;

[0031] The resonant plate is vertically installed in the resonant slot, and the resonant plate swings left and right as the arc-shaped bottom plate vibrates;

[0032] A resonant airbag, which is connected to the side wall of the resonant slot and arranged on both sides of the resonant sheet, and a third spring is connected between the resonant airbag and the side wall of the resonant slot;

[0033] The gas collecting cavity is arranged on the arc bottom plate and is located above the resonance tank;

[0034] A first pipeline, which is arranged on the cylinder and connects the resonant airbag with the external environment. A one-way valve is arranged on the first pipeline, and air flows from the external environment into the resonant airbag;

[0035] The second pipeline is arranged on the cylinder, connecting the resonant airbag and the air collecting cavity, and a one-way valve is arranged on the second pipeline, so that the airflow flows from the resonant airbag into the air collecting cavity;

[0036] The third pipeline is arranged on the cylinder, connecting the gas collecting cavity and the external environment, and a one-way valve is arranged on the third pipeline, so that the airflow flows from the gas collecting cavity into the external environment;

[0037] The induction slot is arranged at the top of the gas collecting cavity, and a trigger switch is arranged on the induction slot. The trigger switch includes two upper and lower contacts, and the lower contact is connected to the elastic membrane in the induction slot;

[0038] A protective airbag is connected above the arc-shaped bottom plate, the protective airbag is connected to an air pump, and a trigger switch is electrically connected to the air pump.

[0039] Preferably, the straightening and cutting method of the MTS shaft steel pipe adopts the straightening and cutting equipment of the MTS shaft steel pipe as described above, specifically comprising:

[0040] Place the MTS shaft steel pipe on the straightening feed conveyor track, and the material receiving ring unit clamps one side of the MTS shaft steel pipe;

[0041] The straightening feed conveyor track moves to transport the MTS shaft steel pipe to the straightening machine for straightening. The straightened MTS shaft steel pipe extends out from the other side of the straightening machine;

[0042] The position sensor detects the position of the end of the MTS shaft steel pipe. When the end of the MTS shaft steel pipe reaches the preset position, the receiving ring unit on the straightening discharge conveyor track clamps the other side of the MTS shaft steel pipe, and the receiving ring unit on the straightening feed conveyor track releases the MTS shaft steel pipe.

[0043] The straightening discharge conveyor track transfers the MTS shaft steel pipe to the cutting feed conveyor track, and the receiving ring unit is started in the above-mentioned manner to convey the MTS shaft steel pipe to the cutting machine for cutting and output.

[0044] Compared with the prior art, the present invention has at least the following beneficial effects:

[0045] The straightening and cutting equipment for MTS shaft steel pipes provided by the present invention integrates a straightener and a cutter into one, shortening the length of the production line. A receiving ring unit is arranged on each conveying track. The receiving ring unit can stably clamp the MTS shaft steel pipe, reduce displacement during transportation, and improve straightening and cutting accuracy. The accurate position of the MTS shaft steel pipe is detected by a position sensor, providing a basis for clamping and releasing the receiving ring unit on each conveying track, so that the actions of each component are coordinated.

[0046] The straightening and cutting method of the MTS shaft steel pipe provided by the present invention adopts a single-side clamping method to convey the MTS shaft steel pipe; a receiving ring unit is arranged on each conveying track, and the receiving ring units are coordinated with each other; the accurate position of the MTS shaft steel pipe is detected by a position sensor to realize flexible switching of the clamping on the feeding and discharging sides; the displacement during the conveying process is reduced, and the straightening and cutting accuracy is improved.

[0047] The straightening and cutting equipment and straightening and cutting method of the MTS shaft steel pipe described in the present invention, and other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by technicians in this field through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0049] Figure 1 This is a schematic diagram of the structure of the present invention without a cutting machine;

[0050] Figure 2 It is a structural schematic diagram of the present invention;

[0051] Figure 3 It is a schematic diagram of the explosion structure of the material receiving ring unit in the present invention;

[0052] Figure 4 It is a schematic diagram of the installation structure of the material receiving ring body and the transmission block in the present invention;

[0053] Figure 5 It is a schematic diagram of the cross-sectional structure of the lower ring body in the present invention;

[0054] Figure 6 It is a cross-sectional structural schematic diagram of the pendulum transmission box in the present invention;

[0055] Figure 7 is a schematic diagram of the cross-sectional structure of the arc bottom plate in the present invention;

[0056] Figure 8 For the present invention Figure 7 Schematic diagram of the local enlarged structure at point A in the middle.

[0057] In the figure: 1. straightening machine; 2. straightening feed conveyor track; 3. straightening discharge conveyor track; 4. cutting machine; 5. cutting feed conveyor track; 6. cutting discharge conveyor track; 7. material rack; 11. lower ring body; 12. upper ring body; 13. transmission screw; 14. transmission groove; 15. transmission box; 16. transmission block; 21. main shaft; 22. first bevel gear; 23. bearing seat; 24. output shaft; 25. second bevel gear; 26. multi-point limit wheel; 31. arc bottom plate; 32. groove; 33. cylinder; 34. lug; 35. guide groove; 36. support plate; 41. resonance groove; 42. resonance plate; 43. resonance airbag; 44. third spring; 45. air collecting chamber; 46. first pipeline; 47. second pipeline; 48. third pipeline; 49. induction groove; 50. trigger switch; 51. protective airbag. DETAILED DESCRIPTION

[0058] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the description.

[0059] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0060] Example 1

[0061] like Figure 1 , 2 As shown, the present invention provides a straightening and cutting device for MTS shaft steel pipe, comprising:

[0062] A straightening machine 1, with a straightening feed conveying track 2 and a straightening discharge conveying track 3 respectively arranged at both ends of the straightening machine 1;

[0063] The cutting machine 4 is arranged on the side of the straightening machine 1. The two ends of the cutting machine 4 are respectively provided with a cutting feed conveying track 5 and a cutting discharge conveying track 6. The cutting feed conveying track 5 corresponds to the straightening discharge conveying track 3.

[0064] Position sensor: The position sensor is used to collect the position information of the MTS shaft steel pipe;

[0065] The receiving ring unit is arranged on the conveying track, and based on the acquisition signal of the position sensor, the receiving ring unit is started to clamp the MTS shaft steel pipe.

[0066] The working principle and beneficial effects of the above technical solution are:

[0067] When using the straightening and cutting equipment for MTS shaft steel pipes, first place the MTS shaft steel pipe on the straightening feed conveyor track 2, and the receiving ring unit clamps one side of the MTS shaft steel pipe; secondly, the straightening feed conveyor track 2 is actuated to transport the MTS shaft steel pipe to the straightening machine 1 for straightening, and the straightened MTS shaft steel pipe extends from the other side of the straightening machine 1; then, the position sensor detects the position of the end of the MTS shaft steel pipe, and when the end of the MTS shaft steel pipe reaches the preset position, the receiving ring unit on the straightening discharge conveyor track 3 clamps the other side of the MTS shaft steel pipe, and the receiving ring unit on the straightening feed conveyor track 2 releases the MTS shaft steel pipe; finally, the straightening discharge conveyor track 3 transfers the MTS shaft steel pipe to the cutting feed conveyor track 5, and the receiving ring unit is started in the above manner to transport the MTS shaft steel pipe to the cutting machine 4 for cutting and output.

[0068] Through the above structural design, a straightening and cutting equipment for MTS shaft steel pipes is provided, which integrates the straightener and the cutter into one, shortens the length of the production line, and arranges a receiving ring unit on each conveying track. The receiving ring unit can stably clamp the MTS shaft steel pipe, reduce displacement during transportation, and improve straightening and cutting accuracy. The exact position of the MTS shaft steel pipe is detected by a position sensor, which provides a basis for clamping and releasing the receiving ring unit on each conveying track, so that the actions of each component are coordinated.

[0069] Example 2

[0070] On the basis of the above-mentioned embodiment 1, a steel pipe pushing mechanism is provided on the straightening and discharging conveying track 3 and the cutting and discharging conveying track 6 .

[0071] The working principle and beneficial effects of the above technical solution are:

[0072] A steel pipe pushing mechanism is provided on each conveying track to realize the transfer of the MTS shaft steel pipe between the straightening and discharging conveying track 3 and the cutting and feeding conveying track 5 , and between the cutting and discharging conveying track 6 and the material rack 7 .

[0073] Example 3

[0074] like Figure 1 , 2 As shown, based on the above-mentioned embodiment 2, the straightening and cutting equipment of the MTS shaft steel pipe also includes: a material rack 7, the material rack 7 is arranged on the side of the straightening feed conveyor track 2 and the side of the cutting discharge conveyor track 6, between the cutting feed conveyor track 5 and the straightening discharge conveyor track 3, and a material guide plate is obliquely arranged between the material rack 7 and the conveying track.

[0075] The working principle and beneficial effects of the above technical solution are:

[0076] The material rack 7 on the side of the straightening feed conveyor track 2 is used to accommodate the MTS shaft steel pipes to be straightened, and the material rack 7 on the side of the cutting discharge conveyor track 6 is used to accommodate the MTS shaft steel pipes after straightening and cutting; by setting an inclined guide plate, the MTS shaft steel pipes can roll along the guide plate to achieve rapid transfer between various workstations.

[0077] Example 4

[0078] like Figure 3-5 As shown, based on the above embodiment 3, the material receiving ring unit includes a plurality of material receiving ring groups arranged at intervals, each material receiving ring group includes two material receiving ring bodies, and the material receiving ring body includes:

[0079] The lower ring body 11 is arranged on the cutting feed conveying track 5;

[0080] The upper ring body 12 is arranged above the lower ring body 11, one end of the upper ring body 12 is rotatably connected to the lower ring body 11 through a rotating shaft, and the end of the rotating shaft is connected to the output end of the ring body driving motor; the upper ring body 12 and the lower ring body 11 are combined to form a steel pipe accommodating space; the other end of the upper ring body 12 is provided with a magnetic strip, which corresponds to the electromagnetic strip at the other end of the lower ring body 11; the inner walls of the upper ring body 12 and the lower ring body 11 are both provided with rubber pads.

[0081] The working principle and beneficial effects of the above technical solution are:

[0082] When the receiving side conveying track receives the pushed MTS shaft steel pipe, the MTS shaft steel pipe has a certain acceleration when rolling along the inclined material guide plate, which may cause the MTS shaft steel pipe to roll out from the receiving side conveying track, and may also cause the conveying track to scratch the surface of the MTS shaft steel pipe. Therefore, the receiving ring body is set to be a combination of a lower ring body 11 and an upper ring body 12.

[0083] When the receiving ring unit receives the MTS shaft steel pipe pushed by the material rack or the conveying track, the ring body driving motor drives the rotating shaft to rotate, and at the same time the electromagnetic strip is powered off, so that the electromagnetic strip loses its attraction to the magnetic strip, and the lower ring body 11 and the upper ring body 12 are unfolded; and the unfolded ends of the lower ring body 11 and the upper ring body 12 are close to the feeding side of the MTS shaft steel pipe; the MTS shaft steel pipe rolls and falls into the lower ring body 11.

[0084] When the receiving ring unit transports the MTS shaft steel pipe in the straightening machine assembly, the rotating shaft is driven to rotate by the ring body driving motor, and the electromagnetic strip is energized at the same time, so that the electromagnetic strip regenerates suction to the magnetic strip, closes the lower ring body 11 and the upper ring body 12 and stably connects them through magnetic force, thereby clamping the central MTS shaft steel pipe; multiple receiving ring groups are located on the side of the MTS shaft steel pipe away from the straightening machine 1, that is, the receiving ring unit clamps one side of the MTS shaft steel pipe and moves along the straightening feed conveying track 2 to convey the MTS shaft steel pipe into the straightening machine 1 for straightening operation; when the end of the MTS shaft steel pipe reaches the preset position, the receiving ring unit on the straightening discharge conveying track 3 clamps its other side, and the receiving ring unit on the feed side unfolds; the action of the receiving ring unit on the cutting machine 4 is the same.

[0085] Through the above-mentioned structural design, when the MTS shaft steel pipe rolls into the ring body space, it contacts the rubber pads on the inner walls of the upper ring body 12 and the lower ring body 11, reducing the damage caused by the track to the surface of the MTS shaft steel pipe; at the same time, the unfolded upper ring body 12 increases the overall height of the receiving ring body, which can block the rolling MTS shaft steel pipe and prevent the MTS shaft steel pipe from rolling out of the conveying track, so that it can better fall into the lower ring body 11.

[0086] When the MTS shaft steel pipe is fed, one side of the MTS shaft steel pipe is fixed by the receiving ring unit, so that during the straightening and cutting process, there are two fulcrums including the straightening machine 1 and the receiving ring unit, or the cutting machine 4 and the receiving ring unit; the two fulcrums can clamp the MTS shaft steel pipe and ensure stable feeding. Compared with the method of fixing on both sides, it can eliminate the influence of the height difference between the straight feed conveyor track 2 and the straightening and discharging conveyor track 3 on the conveying process, and prevent the MTS shaft steel pipe from being bent and deformed due to three-point force.

[0087] Example 5

[0088] Based on the above-mentioned embodiment 4, the maximum value of the expansion angle of the upper ring body 12 is set to 90 degrees.

[0089] The working principle and beneficial effects of the above technical solution are:

[0090] The maximum value of the expansion angle of the upper ring body 12 is set to 90 degrees. When the upper ring body 12 is expanded, the structure is perpendicular to the lower ring body 11, which has a better blocking effect on the MTS shaft steel pipe.

[0091] Example 6

[0092] like Figure 3-5 As shown, on the basis of the above-mentioned embodiment 5, a clamping assembly is provided in the lower ring body 11, and the clamping assembly includes:

[0093] The arc bottom plate 31 is slidably connected to the groove 32 at the bottom of the lower ring body 11. A cylinder 33 is provided at the bottom end of the arc bottom plate 31. Lugs 34 are provided on the side of the arc bottom plate 32. The lugs 34 are slidably connected to the guide grooves 35 on both sides of the groove 32. A first spring is connected to one end of the lug 34 and the guide groove 35.

[0094] The support plate 36 is connected to the bottom end of the groove 32 . A second spring is sleeved on the cylinder 36 , and two ends of the second spring are in contact with the support plate 36 and the arc bottom plate 31 .

[0095] The working principle and beneficial effects of the above technical solution are:

[0096] Due to the different diameters of the MTS shaft steel pipe, a gap will be generated between the material receiving ring body after clamping. By setting up a clamping component, the bottom of the arc bottom plate 31 always maintains a tendency to move upward under the elastic force of the first spring; the lug 34 also always maintains a tendency to move upward under the elastic force of the second spring; therefore, the arc bottom plate 31 can always press the bottom of the MTS shaft steel pipe, maintain the stability of the MTS shaft steel pipe, and improve the adaptability to MTS shaft steel pipes with different diameters. The guide groove 35 and the lug 34 slide relative to each other, guide the arc bottom plate 31, and reduce the jamming of the arc bottom plate 31 during movement.

[0097] Example 7

[0098] like Figure 3 , 6 As shown, based on the above-mentioned embodiment 6, the conveying track includes:

[0099] A transmission screw 13, which is rotatably disposed in a transmission groove 14 of the conveying track;

[0100] A transmission box 15, which is arranged at the end of the conveying track, and an output end of the transmission box 15 is connected to the transmission screw 13;

[0101] The transmission block 16, a plurality of transmission blocks 16 are slidably connected in the transmission groove 14, and the transmission block 16 is connected to the transmission screw 13, and the top of the transmission block 16 is simultaneously connected to the two lower ring bodies 11 in the material receiving ring group.

[0102] The transmission case 15 comprises:

[0103] The main shaft 21 is rotatably connected to the transmission box 15. The main shaft 21 is vertically arranged with the transmission screw 13. The main shaft 21 is connected with a first bevel gear 22. One end of the main shaft 21 is connected with a bearing seat 23, and the other end passes through the transmission box 15 and is connected with the motor.

[0104] The output shaft 24 is rotatably connected to the transmission box 15 , one end of the output shaft 24 is connected to the second bevel gear 25 , and the second bevel gear 25 is meshed and connected with the first bevel gear 22 , and the other end of the output shaft 24 is connected to the transmission screw 13 .

[0105] The multi-point limiting wheel 26 has a rotating shaft connected to the main shaft 21, and a plurality of limiting holes are evenly arranged on the multi-point limiting wheel 26. An elastic limiting rod adapted to the limiting holes is arranged in the transmission box 15, and the elastic limiting rod is provided with an arc-shaped end.

[0106] The working principle and beneficial effects of the above technical solution are:

[0107] When the conveying track is transporting the MTS shaft steel pipe, the motor on the transmission box 15 is started, and the motor drives the main shaft 21 to rotate. The end of the main shaft 21 is connected to the bearing seat 23, so that the rotation process is smoother; the first bevel gear 22 on the main shaft 21 rotates, and the first bevel gear 22 and the second bevel gear 25 are meshed and transmitted, so that the output shaft 24 rotates synchronously, and the output shaft 24 drives the transmission screw 13 to rotate. The transmission screw 13 and the transmission block 16 are threadedly transmitted, so that the transmission block 16 moves in the horizontal direction, and the transmission groove 14 guides the transmission block 16; therefore, through the action of the motor on the transmission box 15, the horizontal drive of the transmission block 16 and the material receiving ring unit can be realized, and the stable feeding of the MTS shaft steel pipe can be realized.

[0108] A multi-point limiting wheel 26 is arranged on the main shaft 21. When the main shaft 21 rotates, the multi-point limiting wheel 26 rotates accordingly; when the main shaft 21 stops rotating, the elastic limiting rod can pop out and be inserted into the limiting hole when it is directly opposite to any limiting hole, so as to limit the main shaft; when the main shaft 21 continues to rotate, pressure can be applied to the arc-shaped end of the elastic limiting rod to shrink the elastic limiting rod without affecting the rotation of the main shaft 21.

[0109] Example 8

[0110] like Figure 7 , 8 As shown, based on the above-mentioned embodiment 6, a protection unit is provided on the arc bottom plate 31, and the protection unit includes:

[0111] A resonance groove 41, the resonance groove 41 is arranged at the bottom of the cylinder 33;

[0112] A resonant plate 42, the resonant plate 42 is vertically installed in the resonant slot 41, and the resonant plate 42 swings left and right as the arc-shaped bottom plate 31 vibrates;

[0113] A resonant airbag 43, the resonant airbag 43 is connected to the side wall of the resonant slot 41 and is arranged on both sides of the resonant plate 42, and a third spring 44 is connected between the resonant airbag 43 and the side wall of the resonant slot 41;

[0114] The gas collecting cavity 45 is disposed on the arc bottom plate 31 and is located above the resonance slot 41;

[0115] The first pipeline 46 is disposed on the cylinder 33 and connects the resonant airbag 43 with the external environment. A one-way valve is disposed on the first pipeline 49, and air flows from the external environment into the resonant airbag 43;

[0116] The second pipeline 47 is disposed on the cylinder 33 and connects the resonant airbag 43 and the air collecting chamber 45. A one-way valve is disposed on the second pipeline 47, and the air flows from the resonant airbag 43 into the air collecting chamber 45;

[0117] The third pipeline 48 is disposed on the cylinder 33 and connects the gas collecting chamber 45 with the external environment. A one-way valve is disposed on the third pipeline 48, and the air flows from the gas collecting chamber 45 to the external environment;

[0118] The induction slot 49 is disposed at the top of the gas collecting chamber 45. A trigger switch 50 is disposed on the induction slot 49. The trigger switch 50 includes two upper and lower contacts, and the lower contact is connected to the elastic membrane in the induction slot 49.

[0119] The protective airbag 51 is connected above the arc bottom plate 31 . The protective airbag 51 is connected to an air pump, and the trigger switch 50 is electrically connected to the air pump.

[0120] The working principle and beneficial effects of the above technical solution are:

[0121] The arc bottom plate 31 is used to press the bottom of the MTS shaft steel pipe. When the first spring and the second spring are fatigued, or the vibration of the cutting machine during the cutting process is large, the vibration amplitude of the arc bottom plate 31 will increase, affecting the clamping stability of the MTS shaft steel pipe, causing offset or burrs during the cutting process, so a protection unit is set. When the protection unit is used, when the arc bottom plate 31 vibrates slightly, the resonant plate 42 swings slightly left and right; after the resonant plate 42 swings left and right to a certain amplitude, it squeezes the resonant airbags 43 on both sides of the resonant slot 41, so that the air in the resonant airbags 43 passes through the second pipeline 47, flows from the resonant airbags 43 into the air collecting cavity 45, and then flows into the external environment through the third pipeline 48; at this time, the upper and lower contacts of the trigger switch 50 in the induction slot 49 are not in contact. When the arc bottom plate 31 vibrates greatly, the resonant plate 42 swings left and right greatly; the resonant plate 4 squeezes the resonant airbags 43 on both sides of the resonant slot 41, so that the air in the resonant airbags 43 flows through the second pipeline 47 and flows into the air collecting chamber 45 from the resonant airbags 43, and part of the airflow then flows into the external environment through the third pipeline 48; because the diameter of the third pipeline 48 is smaller than the diameter of the second pipeline 47, the airflow in the air collecting chamber 45 cannot flow out in time, so that the air pressure in the air collecting chamber 45 increases to a preset value, and then squeezes the elastic membrane of the sensing slot 49 to deform upward, so that the upper and lower contacts of the trigger switch 50 are in contact; the trigger switch 50 starts the air pump to inflate the protective airbag 51, so that the protective airbag 51 expands and squeezes between the tight MTS shaft steel pipe and the material receiving ring body. When the resonant plate 42 is separated from the resonant airbags 41 on both sides, the resonant airbags 41 are reset under the action of the third spring 44, and the air in the external environment is sucked in through the first pipeline 46, so that the resonant airbags 41 are inflated again.

[0122] Through the above-mentioned structural design and the setting of the protection unit, when the vibration amplitude of the arc bottom plate 31 is large and the clamping stability of the MTS shaft steel pipe is insufficient, it can automatically start to provide protection, and the protection airbag 51 is used to fill the gap between the MTS shaft steel pipe and the material receiving ring body, thereby ensuring the clamping stability of the MTS shaft steel pipe and reducing the vibration during the cutting process, thereby improving the cutting accuracy and reducing the burrs on the cutting surface.

[0123] Example 9

[0124] On the basis of any one of the above embodiments 1-8, a straightening and cutting method for an MTS shaft steel pipe, using the straightening and cutting device for the MTS shaft steel pipe, specifically comprises:

[0125] Place the MTS shaft steel pipe on the straightening feed conveyor track 2, and the material receiving ring unit clamps one side of the MTS shaft steel pipe;

[0126] The straightening feed conveyor track 2 is in motion, and the MTS shaft steel pipe is transported to the straightening machine 1 for straightening, and the straightened MTS shaft steel pipe extends out from the other side of the straightening machine 1;

[0127] The position sensor detects the position of the end of the MTS shaft steel pipe. When the end of the MTS shaft steel pipe reaches the preset position, the receiving ring unit on the straightening discharge conveying track 3 clamps the other side of the MTS shaft steel pipe, and the receiving ring unit on the straightening feed conveying track 2 releases the MTS shaft steel pipe.

[0128] The straightening and discharging conveying track 3 transfers the MTS shaft steel pipe to the cutting and feeding conveying track 5, and the receiving ring unit is started in the above-mentioned manner to convey the MTS shaft steel pipe to the cutting machine 4 for cutting and output.

[0129] The working principle and beneficial effects of the above technical solution are:

[0130] A straightening and cutting method for an MTS shaft steel pipe adopts a single-side clamping method to convey the MTS shaft steel pipe; a material receiving ring unit is arranged on each conveying track, and the material receiving ring units are coordinated with each other; the accurate position of the MTS shaft steel pipe is detected by a position sensor to realize flexible switching of the clamping on the feeding and discharging sides; the displacement during the conveying process is reduced, and the straightening and cutting accuracy is improved.

[0131] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0132] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0133] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. MTS shaft steel pipe straightening and cutting equipment, characterized by: include: A straightening machine (1), wherein two ends of the straightening machine (1) are respectively provided with a straightening feed conveying track (2) and a straightening discharge conveying track (3); A cutting machine (4), the cutting machine (4) is arranged on the side of the straightening machine (1), and a cutting feed conveying track (5) and a cutting discharge conveying track (6) are respectively arranged at both ends of the cutting machine (4), and the cutting feed conveying track (5) corresponds to the straightening discharge conveying track (3); and a steel pipe pushing mechanism is arranged on the straightening discharge conveying track (3) and the cutting discharge conveying track (6); Position sensor: the position sensor is used to collect the position information of the MTS shaft steel pipe; A material receiving ring unit is arranged on the conveying track, and based on the collected signal of the position sensor, the material receiving ring unit is started to clamp the MTS shaft steel pipe; A material rack (7), the material rack (7) being arranged on the side of the straightening feed conveyor track (2) and the side of the cutting discharge conveyor track (6), between the cutting feed conveyor track (5) and the straightening discharge conveyor track (3), and a material guide plate being arranged obliquely between the material rack (7) and the conveyor track; The material receiving ring unit includes a plurality of material receiving ring groups arranged at intervals, each material receiving ring group includes two material receiving ring bodies, and the material receiving ring body includes: A lower ring body (11), the lower ring body (11) being arranged on the cutting feed conveying track (5); An upper ring body (12), the upper ring body (12) being arranged above the lower ring body (11), one end of the upper ring body (12) being rotatably connected to the lower ring body (11) via a rotating shaft, the end of the rotating shaft being connected to the output end of a ring body driving motor; the upper ring body (12) and the lower ring body (11) are combined to form a steel pipe accommodating space; a magnetic strip is arranged at the other end of the upper ring body (12), corresponding to the electromagnetic strip at the other end of the lower ring body (11); and rubber pads are arranged on the inner walls of the upper ring body (12) and the lower ring body (11); The maximum value of the expansion angle of the upper ring body (12) is set to 90 degrees; A clamping assembly is arranged inside the lower ring body (11), and the clamping assembly comprises: An arc-shaped bottom plate (31), the arc-shaped bottom plate (31) is slidably connected to a groove (32) at the bottom of the lower ring body (11), a cylinder (33) is provided at the bottom end of the arc-shaped bottom plate (31), a lug (34) is provided on the side of the arc-shaped bottom plate (31), the lug (34) is slidably connected to guide grooves (35) on both sides of the groove (32), and a first spring is connected between the lug (34) and one end of the guide groove (35); A support plate (36) is connected to the bottom end of the groove (32); a second spring is sleeved on the cylinder (33), and two ends of the second spring abut against the support plate (36) and the arc-shaped bottom plate (31).

2. The straightening and cutting equipment for MTS shaft steel pipe according to claim 1, characterized in that: The conveyor track includes: A transmission screw (13), the transmission screw (13) being rotatably disposed in a transmission groove (14) of the conveying track; A transmission box (15), the transmission box (15) is arranged at the end of the conveying track, and the output end of the transmission box (15) is connected to the transmission screw (13); A transmission block (16), wherein a plurality of transmission blocks (16) are slidably connected in the transmission groove (14), and the transmission block (16) is connected to the transmission lead screw (13), and the top end of the transmission block (16) is simultaneously connected to two lower ring bodies (11) in the material receiving ring group.

3. The straightening and cutting equipment for MTS shaft steel pipe according to claim 2, characterized in that: The transmission box (15) comprises: A main shaft (21), the main shaft (21) is rotatably connected to the transmission box (15), the main shaft (21) and the transmission screw (13) are arranged vertically, the main shaft (21) is connected to a first bevel gear (22), one end of the main shaft (21) is connected to a bearing seat (23), and the other end passes through the transmission box (15) and is connected to the motor; An output shaft (24) is rotatably connected to the transmission box (15), one end of the output shaft (24) is connected to a second bevel gear (25), and the second bevel gear (25) is meshedly connected to the first bevel gear (22), and the other end of the output shaft (24) is connected to the transmission screw (13).

4. The straightening and cutting equipment for MTS shaft steel pipe according to claim 3, characterized in that: The transmission box (15) further comprises: a multi-point limiting wheel (26), the rotating shaft of the multi-point limiting wheel (26) is connected to the main shaft (21), a plurality of limiting holes are evenly arranged on the multi-point limiting wheel (26), and an elastic limiting rod adapted to the limiting holes is arranged in the transmission box (15), and the elastic limiting rod is provided with an arc-shaped end.

5. A straightening and cutting method for an MTS shaft steel pipe, using the straightening and cutting device for an MTS shaft steel pipe according to any one of claims 1 to 4, characterized in that: Specifically include: Place the MTS shaft steel pipe on the straightening feed conveyor track (2), and the material receiving ring unit clamps one side of the MTS shaft steel pipe; The straightening feed conveyor track (2) is activated to transport the MTS shaft steel pipe to the straightening machine (1) for straightening, and the straightened MTS shaft steel pipe extends out from the other side of the straightening machine (1); The position sensor detects the position of the end of the MTS shaft steel pipe. When the end of the MTS shaft steel pipe reaches the preset position, the receiving ring unit on the straightening discharge conveying track (3) clamps the other side of the MTS shaft steel pipe, and the receiving ring unit on the straightening feed conveying track (2) releases the MTS shaft steel pipe. The straightening discharge conveyor track (3) transfers the MTS shaft steel pipe to the cutting feed conveyor track (5), and the material receiving ring unit is started to convey the MTS shaft steel pipe to the cutting machine (4) for cutting and output.

Images