Screwing machine and method

Abstract

The invention discloses a makeup and breakout machine and method, and particularly relates to the technical field of petroleum drilling equipment, the makeup and breakout machine comprises a base, supporting wheels are arranged on the two sides of the upper end of the base, four sensors are arranged in the middle of the upper end of the base, and a moving device is slidably mounted on one side of an inner cavity of the base; a moving device is arranged on one side of an inner cavity of the base, the upper portion of the moving device extends to the outside of the base, a fixing device is arranged on the upper portion of the moving device, a screwing device is arranged on the other side of the inner cavity of the base, the upper portion of the screwing device extends to the outside of the base, and a supporting device is arranged on the side, away from the moving device, of the outer surface of the base. According to the screwing machine, in the screwing operation process, the servo motor can monitor the torque, the screwing force can be adjusted in real time by detecting the pressure change in the screwing process, and it is avoided that in the screwing process, the applied force is too large, a steel pipe or a pipe hoop is damaged, and the screwing qualification is affected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil drilling equipment, in particular to a screwing machine. BACKGROUND

[0002] In low-carbon exploration operations, such as oil and gas drilling, mineral exploration and other scenarios, threaded connections are required to achieve the rapid assembly and disassembly of tubular components such as drill pipes, casings and the like. Such tubular components usually have large diameters (common range is several centimeters to several tens of centimeters), large single weights (up to several tons), and high load bearing (need to withstand high pressure fluid scouring and complex stress underground), and the quality of their threaded connections directly affects the safety and efficiency of the operation.

[0003] The screwing machine (also known as a steel pipe thread connection machine or a steel pipe screwing machine) is a special automatic equipment for threaded connection of the end of a threaded steel pipe (such as an oil casing, an oil and gas pipeline, a building scaffold steel pipe, etc.). Its core function is to tighten two threaded steel pipes through a pipe clamp (an internal threaded connection component) or direct threaded engagement to ensure connection strength and sealing performance.

[0004] Chinese Patent Publication No. CN207583333U discloses a hydraulic screwing machine, which includes a base, a main clamp and a back clamp. The main clamp is fixedly installed on the base, and the back clamp is fixedly installed on the base on one side of the main clamp. The main clamp includes a hydraulic motor, which is fixedly installed on a motor seat in the main clamp. A gear is fixedly installed in the main clamp, and a gear shaft is inserted into the gear. A first jaw flange is fixedly installed on the main clamp, and a first jaw spacer is fixedly installed in the first jaw flange. A roller is installed in the main clamp on the upper side of the first jaw spacer. Hanging springs are provided in the main clamp on both sides of the roller. The upper end of the hanging spring is hooked to a short spring hanging shaft in the main clamp, and the lower end of the hanging spring is hooked to a long spring hanging shaft in the main clamp. The device has a compact structure and is easy to use. The main clamp is driven by a hydraulic motor, and the remaining systems are controlled by air. The possibility of system oil leakage is greatly reduced. The main clamp and the back clamp are on the same base, and the centering is good. It meets the use requirements of different tolerance oil pipes and couplings. However, in actual use, the device still has some deficiencies. For example, during the screwing process, the force of the screwing cannot be detected, which may cause excessive force and damage to the steel pipe or the pipe clamp, affecting the qualified rate of the screwing.

[0005] In view of the deficiencies of the prior art, the present application provides a new screwing machine and method to solve the above problems. SUMMARY

[0006] The main purpose of the present application is to provide a screwing machine and method, which can effectively solve the problem that the force of the screwing cannot be detected during the screwing process, which may cause excessive force and damage to the steel pipe or the pipe clamp, affecting the qualified rate of the screwing.

[0007] To achieve the above object, the technical scheme adopted by the present application is as follows: A button twisting machine, comprising a base, both sides of the upper end of the base are provided with support wheels, the middle of the upper end of the base is provided with four sensors, the inner cavity of the base is slidably provided with a moving device on one side, the upper part of the moving device extends to the outside of the base, the upper part of the moving device is provided with a fixing device, the other side of the inner cavity of the base is provided with a button twisting device, the upper part of the button twisting device extends to the outside of the base, the outer surface of the base away from the moving device is provided with a supporting device.

[0008] Preferably, the moving device comprises a sliding table and a hydraulic cylinder one, the sliding table is slidably installed on the surface of the inner cavity of the base, the hydraulic cylinder one is fixedly installed on the bottom wall of the inner cavity of the base, the output end of the hydraulic cylinder one is fixedly connected with the lower part of the outer surface of the sliding table, the upper end of the sliding table is provided with a support frame, and the outer surface of the support frame is fixedly connected with a hydraulic cylinder two on one side.

[0009] Preferably, the fixing device comprises a mounting wheel, the mounting wheel is fixedly installed on the middle of the upper end of the support frame, three limiting pieces one are arranged on the inner side surface of the mounting wheel, a clamping mechanism is arranged in the inner cavity of the mounting wheel, and connecting plates are arranged on both sides of the outer surface of the clamping mechanism. The output end of the hydraulic cylinder two is rotatably connected with one side of the outer surface of the two connecting plates.

[0010] Preferably, the clamping mechanism comprises two mounting plates, the two mounting plates are rotatably installed on both sides of the outer surface of the mounting wheel, three conical blocks one are fixedly installed between the two mounting plates, three clamping jaws one are slidably installed between the two mounting plates, the three conical blocks one and the three clamping jaws one are distributed at intervals, the outer surfaces of the three clamping jaws one and the outer surfaces of the two mounting plates are connected through four springs respectively, and the three clamping jaws one are used in matching with the three limiting pieces one.

[0011] Preferably, the button twisting device comprises a mounting frame, the outer surfaces of both sides of the mounting frame are fixedly connected with the upper end of the base, the lower end of the mounting frame is fixedly installed on the bottom wall of the inner cavity of the base, limiting plates are arranged on both sides of the outer surface of the mounting frame, a servo motor is arranged on the lower part of the outer surface of the mounting frame away from the moving device, a control mechanism is arranged on the lower part of the mounting frame, a transmission mechanism is arranged in the inner cavity of the mounting frame, the lower part of the transmission mechanism is fixedly connected with the output end of the servo motor, and a button twisting mechanism is arranged in the upper part of the inner cavity of the mounting frame.

[0012] Preferably, the control mechanism comprises a transmission rod II, the transmission rod II is rotationally installed at the lower part of the installation frame, and one end of the transmission rod II extends to the outside of the base, the outer surface of the transmission rod II is provided with a positioning plate, the upper part of the positioning plate is provided with two positioning grooves, the two sides of the positioning plate are provided with positioning buckles which are fixedly installed on the outer surface of the base, the positioning grooves are matched with the positioning buckles, the other side of the outer surface of the transmission rod II is provided with a U-shaped rod, and the upper part of the U-shaped rod is rotationally installed with an internal gear ring.

[0013] Preferably, the transmission mechanism comprises a transmission rod I and a transmission handle, the transmission rod I and the transmission handle are both rotationally installed at the lower part of the inner cavity of the installation frame, one end of the installation frame away from the moving device is fixedly connected with the output end of the servo motor, the middle part of the outer surface of the transmission rod I is meshedly connected with the inner side surface of the internal gear ring, the outer surfaces of the transmission rod I and the transmission handle are respectively provided with a gear set I and a gear set II, the gear ratios of the gear set I and the gear set II are different, the gears located at the lower part of the gear set I and the gear set II are matched with the internal gear ring, and the upper sides of the transmission handle are both provided with a gear I which is rotationally installed on the two limiting plates.

[0014] Preferably, the screwing mechanism comprises two installation discs, the outer sides between the two installation discs are provided with a transmission wheel, the transmission wheel is rotationally installed at the upper part of the inner cavity of the installation frame, the transmission wheel is meshedly connected with the two gears I, the outer surfaces of the two installation discs are rotationally connected with the outer surface of the transmission wheel, the inner sides between the two installation discs are provided with three tapered blocks II, three clamping jaws II which are slidingly installed on the outer surfaces of the two installation discs are arranged between the three tapered blocks II, the three tapered blocks II and the three clamping jaws II are spaced apart, the outer surfaces of the three clamping jaws II are connected with the outer surfaces of the two installation discs through the four springs I, and the outer surface of the installation disc away from the fixed device is provided with a limiting pin.

[0015] Preferably, the transmission wheel comprises an external gear ring, the external gear ring is rotationally installed at the upper part of the inner cavity of the installation frame, the external gear ring is meshedly connected with the two gears I, the outer surface of the external gear ring is provided with two limiting grooves on the side close to the limiting pin, the two limiting grooves are matched with the limiting pin, and the inner side surface of the external gear ring is provided with three limiting pieces II which are matched with the three clamping jaws II.

[0016] Preferably, the supporting device comprises a rotating mechanism, the rotating mechanism is fixedly installed on the outer surface of the base, the upper part of the rotating mechanism is provided with a supporting handle, the outer surface of the supporting handle is provided with an electric cylinder, and the output end of the electric cylinder is provided with a supporting mechanism. The supporting mechanism comprises a mounting shell, one side of the outer surface of the mounting shell is fixedly connected with the output end of the electric cylinder, one side of the outer surface of the mounting shell is provided with a connecting pipe, the connecting pipe is fixedly installed in the inside of the output rod of the electric cylinder, and the end surface of the connecting pipe is connected with the pipeline port for conveying lubricating oil, the middle part of the inner cavity of the mounting shell is provided with a connecting ball, one end of the connecting ball extends to the outside of the mounting shell, and the end of the connecting ball extending to the outside of the mounting shell is fixedly connected with the end surface of the connecting pipe, the other side of the outer surface of the mounting shell is provided with a transmission part, and three supporting parts are slidingly installed in the middle part of the mounting shell. The transmission part comprises a second motor, the second motor is fixedly installed on the outer surface of the mounting shell, the output end of the second motor extends to the inside of the mounting shell, and the output end of the mounting shell is provided with a transmission disc.

[0017] Preferably, the supporting part comprises a supporting rod, the supporting rod is slidingly installed in the middle part of the mounting shell, one side of the outer surface of the supporting rod is provided with a plurality of transmission arc rods, the plurality of transmission arc rods are used in matching with the transmission disc, the middle part of the inner cavity of the supporting rod is provided with a connecting rod, one end of the connecting rod close to the connecting ball extends to the outside of the supporting rod, the upper part of the supporting rod is provided with a mounting rod, the inner cavity of the mounting rod is communicated with the inner cavity of the supporting rod, both sides of the outer surface of the mounting rod are rotationally connected with limit wheels, one side of the outer surface of the mounting rod close to the transmission part is provided with a spray pipe, the inner cavity of the spray pipe is communicated with the inner cavity of the mounting rod, one side of the outer surface of the supporting rod close to the connecting ball is provided with a second spring fixedly installed on the outer surface of the mounting shell.

[0018] The application also discloses a method for using the thread rolling machine. S1, when the steel pipe and the pipe clamp need to be tightened or the pipe clamp is taken off from the steel pipe, the staff first conveys the steel pipe to the upper part of the base through the related conveying device, in the process, the steel pipe passes through the middle part of the fixing device, when the steel pipe is conveyed to the corresponding position, the four sensors position the steel pipe; S2, after the four sensors complete the position detection of the steel pipe, the four sensors transmit signals to the control console, the control console transmits signals to make the hydraulic cylinder one drive the sliding table to slide in the inside of the base, and then the hydraulic cylinder one drives the fixing device to move to the middle part of the steel pipe through the supporting frame, so that the steel pipe is clamped more stably; S3, when the moving device drives the fixing device to move to the corresponding position, the output of the hydraulic cylinder two drives the mounting plate to rotate through the two connecting plates, when the two mounting plates rotate, the two mounting plates drive the three conical blocks one and the three clamping jaws one to rotate, in the process that the clamping jaws one rotate with the mounting plate, the three clamping jaws one are gradually pushed to the side close to each other by the three limiting pieces one, until the three clamping jaws one contact the surface of the steel pipe, so that the clamping and fixing of the steel pipe are completed; S4, when the need to take off the pipe clamp from the steel pipe, the rotating mechanism drives the support handle, electric cylinder and support mechanism to rotate a certain angle, then the electric cylinder drives the support mechanism into the inside of the pipe clamp, then the support mechanism supports the pipe clamp, when the need to put the pipe clamp on the steel pipe, the staff or related device fixes the pipe clamp through the support mechanism, then the rotating mechanism and the support handle and the electric cylinder convey the support mechanism and the pipe clamp to the corresponding position, so that the pipe clamp contacts with the surface of the steel pipe; S5, when the staff conveys the steel pipe through the related conveying device, the pipe clamp at the head of the steel pipe needs to enter the middle part of the screwing buckle mechanism, at this time, the steel pipe moves to the corresponding position, after the fixing device clamps and fixes the steel pipe, the staff pushes the control mechanism to the corresponding position according to the need of screwing buckle, and then controls the rotating speed of the screwing buckle mechanism driven by the servo motor; S6, when the control mechanism is adjusted, the servo motor drives the screwing buckle mechanism to rotate through the transmission mechanism, in the process of rotating the screwing buckle mechanism, the screwing buckle mechanism will first clamp the pipe clamp, then the screwing buckle mechanism will drive the pipe clamp to rotate, so as to make the pipe clamp tighten with the steel pipe or make the pipe clamp take off from the steel pipe, so as to complete the screwing buckle action; S7, in the process of screwing buckle when the pipe clamp needs to be taken off from the steel pipe, and after the screwing buckle device takes off the pipe clamp from the steel pipe, the electric cylinder drives the support mechanism to move away from the fixed device, so as to make the support mechanism drive the pipe clamp to contact with the steel pipe, then the rotating mechanism drives the electric cylinder and the support mechanism to rotate a certain angle through the support handle, finally the support mechanism puts the pipe clamp into the inner cavity of the corresponding holding device, and in the process of screwing buckle when the pipe clamp needs to be put on the steel pipe, after the screwing buckle device completes the screwing buckle action, the support mechanism releases the fixed state of the pipe clamp, then returns to the initial position under the driving of the rotating mechanism, the support handle and the support mechanism.

[0019] Compared with the prior art, the present application has the following advantages: 1、In the present application, by setting the moving device, the fixing device and the inductor, when the steel pipe is conveyed to the corresponding position, the four inductors will position the steel pipe, the four inductors will transmit signals to the control console, the control console will convey signals to make the moving device drive the fixing device to move to the middle part of the steel pipe, so as to clamp the steel pipe more stably, and improve the stability of the device.

[0020] 2. In the present invention, a screw threading mechanism is provided, and the servo motor drives the screw threading mechanism to rotate through the transmission mechanism. During the rotation of the screw threading mechanism, the screw threading mechanism will first clamp the pipe clamp, and then the screw threading mechanism will drive the pipe clamp to rotate, thereby tightening the pipe clamp and the steel pipe or removing the pipe clamp from the steel pipe, thereby completing the screw threading action. In this process, the screw threading mechanism completes the clamping of the pipe clamp through the rotational force transmitted by the servo motor through the transmission mechanism and then performs the screw threading action. There is no need to set up other power sources to drive the screw threading mechanism to clamp the pipe clamp, which reduces energy consumption and, at the same time, reduces the manufacturing cost of the device.

[0021] 3. In the present invention, during the tightening operation, the servo motor can monitor the torque and detect the pressure changes during the tightening process so as to adjust the tightening force in real time to avoid excessive force being applied during the tightening process, which may damage the steel pipe or pipe clamp and affect the quality of the tightening. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ; Figure 3 It is a schematic structural diagram of the mobile device of the present invention; Figure 4 Schematic diagram of the clamping mechanism structure of the present invention Figure 1 ; Figure 2 Schematic diagram of the clamping mechanism structure of the present invention Figure 6 ; Figure 1 Schematic diagram of the buckle device structure of the present invention Figure 7 ; Figure 2 Schematic diagram of the buckle device structure of the present invention Figure 8 ; Figure 2 For the present invention Figure 9 A partial enlarged view of the middle A; Figure 10 It is a schematic structural diagram of the transmission mechanism of the present invention; Figure 11 It is a structural schematic diagram of the buckle mechanism of the present invention; Figure 12 It is a schematic diagram of the transmission wheel structure of the present invention; Figure 13 It is a schematic structural diagram of the support device of the present invention; Figure 14 It is a schematic structural diagram of the support mechanism of the present invention; Figure 1A schematic view of the support structure of the present application.

[0023] In the figure: 1, base; 2, support wheel; 3, moving device; 31, sliding table; 32, hydraulic cylinder one; 33, support frame; 34, hydraulic cylinder two; 4, fixing device; 41, mounting wheel; 411, limiting piece one; 42, clamping mechanism; 421, mounting plate; 422, conical block one; 423, clamping jaw one; 43, connecting plate; 5, inductor; 6, button twisting device; 61, mounting frame; 62, limiting plate; 63, servo motor; 64, button twisting mechanism; 641, mounting disc; 6411, limiting pin; 6412, spring one; 642, transmission wheel; 6421, outer gear ring; 6422, limiting piece two; 6423, limiting groove; 643, conical block two; 644, clamping jaw two; 65, control mechanism; 651, transmission rod two; 652, positioning plate; 6521, positioning groove; 653, positioning buckle; 654, U-shaped rod; 655, inner gear ring; 66, transmission mechanism; 661, transmission rod one; 662, gear set one; 663, gear set two; 664, transmission handle; 666, gear one; 7, support device; 71, rotating mechanism; 72, support handle; 73, electric cylinder; 74, support mechanism; 741, mounting shell; 742, connecting pipe; 743, connecting ball; 744, transmission piece; 7441, motor two; 7442, transmission disc; 745, support piece; 7451, support rod; 7452, connecting rod; 7453, mounting rod; 7454, limiting wheel; 7455, spray pipe; 7456, spring two. DETAILED DESCRIPTION

[0024] To make the technical means, creative features, purposes and effects of the present application easy to understand, the following will further describe the present application in combination with specific embodiments.

[0025] Embodiment one As shown in Figure 2 and Figure 3 , the present embodiment discloses a button twisting machine, which comprises a base 1, both sides of the upper end of the base 1 are provided with support wheels 2, the middle part of the upper end of the base 1 is provided with four inductors 5, one side of the inner cavity of the base 1 is slidingly installed with a moving device 3, the upper part of the moving device 3 extends to the outside of the base 1, and the upper part of the moving device 3 is provided with a fixing device 4.

[0026] Specifically, when the steel pipe and the pipe clamp need to be tightened or the pipe clamp is removed from the steel pipe, the staff first transports the steel pipe to the upper part of the base 1 through the related conveying device, in the process, the steel pipe passes through the middle part of the fixing device 4, when the steel pipe is transported to the corresponding position, the four sensors 5 will position the steel pipe, the four sensors 5 will transmit signals to the control console, and the control console will transmit signals to make the moving device 3 drive the fixing device 4 to move to the middle part of the steel pipe, so that the fixing device 4 can be clamped and fixed in the middle part of the steel pipe, so as to perform the screwing operation on the steel pipe later.

[0027] In order to support the fixing device 4, and drive the fixing device 4 to move and slide on the base 1, as shown in Figure 3 The moving device 3 includes a sliding table 31 and a hydraulic cylinder one 32, the sliding table 31 is slidingly installed on the inner cavity of the base 1, the hydraulic cylinder one 32 is fixedly installed on the bottom wall of the inner cavity of the base 1, the output end of the hydraulic cylinder one 32 is fixedly connected with the lower part of the outer surface of the sliding table 31, the upper end of the sliding table 31 is provided with a support frame 33, and the outer surface of the support frame 33 is fixedly connected with a hydraulic cylinder two 34.

[0028] Specifically, after the four sensors 5 detect the position of the steel pipe, the four sensors 5 transmit signals to the control console, and the control console transmits signals to make the hydraulic cylinder one 32 push the sliding table 31 to slide in the inner cavity of the base 1, and then the hydraulic cylinder one 32 drives the fixing device 4 to move to the middle part of the steel pipe through the support frame 33, so as to clamp the steel pipe more stably.

[0029] Further, after the fixing device 4 moves to the appropriate position, at this time, the hydraulic cylinder two 34 drives the fixing device 4 to move, so that the fixing device 4 clamps and fixes the steel pipe.

[0030] Further, in the process of the other components performing the screwing operation on the steel pipe, the hydraulic cylinder one 32 also needs to drive the fixing device 4 to move through the sliding table 31 and the support frame 33 according to the screwing condition, so as to tighten the steel pipe and the pipe clamp or remove the pipe clamp from the steel pipe.

[0031] In order to fix the steel pipe, as shown in Figure 4 and Figure 4 The fixing device 4 includes a mounting wheel 41, the mounting wheel 41 is fixedly installed on the upper end of the support frame 33, three limiting pieces one 411 are arranged on the inner side surface of the mounting wheel 41, a clamping mechanism 42 is arranged in the middle part of the inner cavity of the mounting wheel 41, connecting plates 43 are arranged on the both sides of the outer surface of the clamping mechanism 42, and the output end of the hydraulic cylinder two 34 is rotatably connected with one side of the outer surface of the two connecting plates 43.

[0032] Specifically, when the mobile device 3 drives the fixing device 4 to move to the corresponding position, the hydraulic cylinder two 34 outputs to drive the clamping mechanism 42 to rotate through the two connecting plates 43, so that the clamping mechanism 42 fixes the steel pipe.

[0033] In order to realize the fixing of the steel pipe, as shown in Figure 5 and Figure 1 , the clamping mechanism 42 comprises two mounting plates 421, which are respectively rotatably mounted on the outer surfaces of the two sides of the mounting wheel 41, three conical blocks one 422 are fixedly installed between the two mounting plates 421, and three clamping jaws one 423 are slidably installed between the two mounting plates 421, the three conical blocks one 422 are distributed at intervals, and the outer surfaces of the three clamping jaws one 423 are connected with the outer surfaces of the two mounting plates 421 through four springs, respectively, and the three clamping jaws one 423 are used in cooperation with the three limiting pieces one 411.

[0034] Specifically, when the hydraulic cylinder two 34 outputs, the hydraulic cylinder two 34 drives the two mounting plates 421 to rotate through the two connecting plates 43, when the two mounting plates 421 rotate, the two mounting plates 421 drive the three conical blocks one 422 and the three clamping jaws one 423 to rotate, in the process of rotating the three clamping jaws one 423 with the two mounting plates 421, the three clamping jaws one 423 respectively contact with the outer surfaces of the three limiting pieces one 411, since the three limiting pieces one 411 are composed of two arc plates gradually extending inward, therefore, in the process of rotating the clamping jaw one 423 with the mounting plate 421, the three clamping jaws one 423 are gradually pushed to the side close to each other by the three limiting pieces one 411, until the three clamping jaws one 423 contact with the surface of the steel pipe, so as to complete the clamping and fixing of the steel pipe.

[0035] Further, in the process of rotating the clamping jaw one 423 with the mounting plate 421, the spring between the clamping jaw one 423 and the mounting plate 421 is stretched under force, when the screwing is completed, the hydraulic cylinder two 34 drives the clamping mechanism 42 to return to the initial state through the two connecting plates 43, in this process, the clamping jaw one 423 returns to the initial position under the action of the spring.

[0036] Embodiment two This embodiment is further improved on the basis of embodiment one, as shown in Figure 2 and Figure 6 , the other side of the inner cavity of the base 1 is provided with a screwing device 6, the upper part of the screwing device 6 extends to the outside of the base 1, and the outer surface of the base 1 away from the mobile device 3 is provided with a supporting device 7.

[0037] In order to screw the steel pipe, as shown in Figure 7 and Figure 7As shown, the screwing device 6 comprises a mounting frame 61, the outer surface of the mounting frame 61 is fixedly connected with the upper end of the base 1, and the lower end of the mounting frame 61 is fixedly installed on the inner cavity bottom wall of the base 1, the outer surface of the mounting frame 61 is provided with a limiting plate 62 on both sides, the outer surface of the lower part of the mounting frame 61 is provided with a servo motor 63 away from the moving device 3, the lower part of the mounting frame 61 is provided with a control mechanism 65, the inner cavity of the mounting frame 61 is provided with a transmission mechanism 66, the lower part of the transmission mechanism 66 is fixedly connected with the output end of the servo motor 63, and the inner cavity of the mounting frame 61 is provided with a screwing mechanism 64.

[0038] Specifically, when the staff transports the steel pipe through the related conveying device, the pipe clamp at the head of the steel pipe needs to enter the middle part of the screwing mechanism 64, at this time, the steel pipe is moved to the corresponding position, and after the steel pipe is clamped and fixed by the fixing device 4, the staff pushes the control mechanism 65 to the corresponding position according to the needs of screwing, and then controls the rotating speed of the screwing mechanism 64 driven by the servo motor 63 through the transmission mechanism 66.

[0039] Further, after the control mechanism 65 is adjusted, the servo motor 63 drives the screwing mechanism 64 to rotate through the transmission mechanism 66, in the process of rotating the screwing mechanism 64, the screwing mechanism 64 will first clamp the pipe clamp, then the screwing mechanism 64 will drive the pipe clamp to rotate, and then the pipe clamp is tightened with the steel pipe or the pipe clamp is removed from the steel pipe, so as to complete the screwing action.

[0040] In order to control the rotating speed of the screwing mechanism 64, as shown, Figure 9 Figure 9 As shown, the control mechanism 65 comprises a transmission rod two 651, the transmission rod two 651 is rotatably installed at the lower part of the mounting frame 61, and one end of the transmission rod two 651 extends to the outside of the base 1, the outer surface of the transmission rod two 651 is provided with a limiting plate 652, two limiting grooves 6521 are formed in the upper part of the limiting plate 652, limiting buckles 653 are fixedly installed on the outer surface of the base 1 on both sides of the limiting plate 652, the limiting grooves 6521 and the limiting buckles 653 are used in pairs, the outer surface of the transmission rod two 651 is provided with a U-shaped rod 654, and an inner tooth ring 655 is rotatably installed on the upper part of the U-shaped rod 654.

[0041] Further, as shown, Figure 11 ​As shown, the transmission mechanism 66 includes a transmission rod 661 and a transmission handle 664, both of which are rotatably installed at the lower part of the inner cavity of the mounting frame 61, and the end of the mounting frame 61 away from the moving device 3 is fixedly connected with the output end of the servo motor 63. The outer surface of the transmission rod 661 is meshingly connected with the inner surface of the inner tooth ring 655. The outer surfaces of the transmission rod 661 and the transmission handle 664 are respectively provided with a gear set 662 and a gear set 663. The gear ratios of the gear set 662 and the gear set 663 are different. The gears in the lower part of the gear set 662 and the gear set 663 are adapted for use with the inner tooth ring 655. The upper sides of the transmission handle 664 are respectively provided with a gear 666 rotatably installed on the two limiting plates 62. The outer surfaces of the two gears 666 are meshingly connected with the middle part of the transmission handle 664.

[0042] Specifically, before the screwing operation is performed, when the worker needs to adjust the rotation of the screwing mechanism 64, the worker pushes the transmission rod 652 to one side to rotate, which drives the positioning plate 652 to rotate to one side, so that the positioning groove 6521 on one side is in contact with the outer surface of the positioning buckle 653 on the same side. Then the worker fixes the positioning plate 652 through the positioning buckle 653.

[0043] Further, in the process of rotating the transmission rod 652, the transmission rod 652 drives the inner tooth ring 655 to move to one side, so that the inner tooth ring 655 is meshingly connected with the gears in the lower part of the gear set 662 or the gear set 663 on one side. When the servo motor 63 drives the transmission rod 661 to rotate, the transmission rod 661 drives the gear set 662 or the gear set 663 to rotate through the inner tooth ring 655, so that the gear set 662 or the gear set 663 drives the transmission handle 664 to rotate, but the rotation speed of the transmission handle 664 is different (this situation is under the condition that the output rotation speed of the servo motor 63 remains unchanged).

[0044] Further, when the transmission handle 664 rotates, the transmission handle 664 drives the two gears 666 to rotate, and then the two gears 666 drive the screwing mechanism 64 to rotate.

[0045] Further, in the process of performing the screwing operation, the servo motor can monitor the torque. By detecting the pressure change in the screwing process, the force of the screwing can be adjusted in real time to avoid excessive force in the screwing process, which can cause damage to the steel pipe or the pipe clamp and affect the qualification of the screwing.

[0046] Further, the torque monitoring of the servo motor is not directly completed by the motor itself, but by current detection, signal processing and algorithm calculation of the servo driver. The specific steps are as follows: 1. Real-time detection of motor current The driver integrates a high-precision current sensor (such as a Hall sensor) inside the servo driver, which can sample the three-phase input current (for AC motors) or armature current (for DC motors) in real time.

[0047] (1) For AC servo motors, the driver decomposes the three-phase current into field current (d-axis) and torque current (q-axis) through the "vector control" algorithm, where the q-axis current directly determines the output torque. (2) For DC servo motors, the driver directly detects the armature current without complex decomposition.

[0048] 2. Conversion and calibration of current to torque The driver converts the detected current value to the corresponding torque value based on the inherent parameters of the motor (such as torque constant , armature resistance, etc.): (1) Basic conversion: ( for the armature current of a DC motor or the q-axis current of an AC motor); (2) Compensation correction: The motor needs to compensate for temperature rise (current detection error caused by resistance change), iron loss, mechanical friction, etc. Some high-end drivers will dynamically correct through algorithms to improve accuracy.

[0049] 3. Reading and feedback of torque data The converted real-time torque value can be output in the following ways for monitoring and control during the screwing process: (1) Torque value is stored in a specific parameter register of the driver (such as "torque command value" and "torque feedback value" parameters for Japanese servo), which can be read through the communication interface; (2) Analog output: The driver usually has an analog output port (such as 0-10V or 4-20mA), which can convert the torque value to an analog signal in proportion, directly connected to PLC or data acquisition card; (3) Digital communication: Real-time upload of torque data to the host computer (such as PLC, HMI) through industrial bus to realize visual monitoring.

[0050] 4. Torque conversion combined with mechanical transmission chain The torque output by the servo motor needs to pass through the transmission components such as reduction gearbox, coupling, spindle, etc. to the screwing chuck, and finally acts on the steel pipe joint. Therefore, the actual screwing torque = motor output torque × transmission efficiency.

[0051] (1) Transmission efficiency needs to be determined in advance through calibration (measured with a standard torque sensor at the chuck end and compared with the motor torque to calculate); (2) If the transmission chain is rigid and the loss is stable (such as precision gear box), it can be directly converted by a fixed coefficient; if there is elastic deformation or dynamic loss (such as belt transmission), dynamic compensation is needed.

[0052] In order to carry out the screwing operation, as shown in Figure 12 The screwing mechanism 64 comprises two mounting plates 641, an outer side between the two mounting plates 641 is provided with a transmission wheel 642, the transmission wheel 642 is rotatably mounted on the upper portion of the inner cavity of the mounting frame 61, the transmission wheel 642 is in meshing connection with two gear wheels 666, the outer surfaces of the two mounting plates 641 are rotatably connected with the outer surface of the transmission wheel 642, an inner side between the two mounting plates 641 is provided with three conical blocks 643, three clamping jaws 644 are slidably mounted on the outer surfaces of the two mounting plates 641 and are arranged between the three conical blocks 643, and the three conical blocks 643 are spaced apart from the three clamping jaws 644, the outer surfaces of the three clamping jaws 644 are respectively connected with the outer surfaces of the two mounting plates 641 through four springs 6412, and the outer surface of the mounting plate 641 away from the fixing device 4 is provided with a limiting pin 6411.

[0053] Further, as shown in Figure 12 The transmission wheel 642 comprises an outer tooth ring 6421, the outer tooth ring 6421 is rotatably mounted on the upper portion of the inner cavity of the mounting frame 61, the outer tooth ring 6421 is in meshing connection with the two gear wheels 666, two limiting grooves 6423 are formed on the outer surface of the outer tooth ring 6421, the limiting pin 6411 is used in cooperation with the two limiting grooves 6423, and three limiting members 6422 are arranged on the inner side surface of the outer tooth ring 6421 and are used in cooperation with the three clamping jaws 644.

[0054] Specifically, when the servo motor 63 drives the two gear wheels 666 to rotate, the two gear wheels 666 drive the outer tooth ring 6421 to rotate, and when the outer tooth ring 6421 rotates, the three limiting members 6422 are driven to rotate, so that the three limiting members 6422 respectively drive the clamping jaws 644 to move inward.

[0055] Further, the manner in which the limiting member 6422 drives the clamping jaw 644 to move is the same as the manner in which the limiting member 411 drives the clamping jaw 423 to move, and the limiting member 6422 and the clamping jaw 644 have the same shape as the limiting member 411 and the clamping jaw 423, and the sizes thereof need to be replaced according to actual conditions.

[0056] Further, when the three clamping jaws 644 contact the surface of the pipe clamp, the three clamping jaws 644 cannot move to the side close to each other, so the three limiting members 6422 respectively drive the three clamping jaws 644 to rotate, so that the three limiting members 6422 drive the two mounting plates 641 to rotate through the action of the adjacent three conical blocks 643, so that the screwing mechanism 64 continues to drive the pipe clamp to rotate after fixing the pipe clamp, so as to perform the screwing action.

[0057] Further, when the outer tooth ring 6421 rotates, the limiting pin 6411 will slide in the inner cavity of the limiting groove 6423 on one side. When the limiting pin 6411 slides from one side to the other side of the limiting groove 6423, the three clamping jaws two 644 have not yet contacted the surface of the pipe clamp. At this time, the limiting pin 6411 cannot slide in the inner cavity of the limiting groove 6423, so the limiting pin 6411 drives the one side mounting disc 641 to rotate, thereby making the screwing mechanism 64 rotate as a whole, avoiding the pulleys on the three clamping jaws two 644 entering the openings in the three limiting pieces two 6422, and affecting the normal operation of the device.

[0058] Further, in the process of pushing the clamping jaw two 644 out by the limiting piece two 6422, the spring one 6412 connected between the clamping jaw two 644 and the mounting disc 641 will be stretched. When the screwing work is completed, the servo motor 63 drives the transmission wheel 642 to rotate in the reverse direction through the transmission mechanism 66. At this time, the limiting piece two 6422 no longer limits the clamping jaw two 644. At this time, the spring one 6412 drives the clamping jaw two 644 to return to the initial position until the next screwing work.

[0059] Further, if the working process of the above screwing machine is to tighten the steel pipe and the pipe clamp, when the pipe clamp needs to be removed from the steel pipe, the worker needs to pull out the limiting pin 6411 from the limiting groove 6423 on one side, and then rotate the screwing mechanism 64 by a certain angle to put the limiting pin 6411 into the inner cavity of the limiting groove 6423 on the other side.

[0060] In order to support the pipe clamp, at the same time, spray lubricating oil on the connection between the pipe clamp and the steel pipe during the screwing work, as shown in Figure 13 As shown in

[0061] Further, as shown in Figure 14 The support mechanism 74 includes a mounting shell 741, one side of the outer surface of the mounting shell 741 is fixedly connected with the output end of the electric cylinder 73, the outer surface of the mounting shell 741 is provided with a connecting pipe 742, the connecting pipe 742 is fixedly installed in the output rod of the electric cylinder 73, and the end surface of the connecting pipe 742 is connected with the pipeline port for conveying lubricating oil. The inner cavity of the mounting shell 741 is provided with a connecting ball 743, one end of the connecting ball 743 extends to the outside of the mounting shell 741, and the end of the connecting ball 743 extending to the outside of the mounting shell 741 is fixedly connected with the end surface of the connecting pipe 742. The other side of the outer surface of the mounting shell 741 is provided with a transmission piece 744, and the mounting shell 741 is slidably provided with three supporting pieces 745.

[0062] Further, as shown in Figure 13 The transmission member 744 includes a motor two 7441 fixedly installed on the outer surface of the mounting shell 741, and the output end of the motor two 7441 extends to the inside of the mounting shell 741, and the output end of the mounting shell 741 is provided with a transmission disc 7442.

[0063] Specifically, when it is necessary to remove the pipe clamp from the steel pipe, the rotating mechanism 71 drives the support handle 72, the electric cylinder 73 and the support mechanism 74 to rotate by a certain angle, and then the electric cylinder 73 drives the support mechanism 74 to enter the inside of the pipe clamp, and then the support mechanism 74 supports the pipe clamp, and then the screwing device 6 performs screwing operation, when the screwing device 6 removes the pipe clamp from the steel pipe, the electric cylinder 73 drives the support mechanism 74 to move away from the fixed device 4, and then the support mechanism 74 drives the pipe clamp to contact the steel pipe, and then the rotating mechanism 71 drives the electric cylinder 73 and the support mechanism 74 to rotate by a certain angle through the support handle 72, and finally the support mechanism 74 puts the pipe clamp into the inner cavity of the corresponding holding device.

[0064] Further, when the rotating mechanism 71, the support handle 72 and the electric cylinder 73 deliver the support mechanism 74 to the corresponding position, the transmission disc 7442 drives the transmission disc 7442 to rotate, when the transmission disc 7442 rotates, the transmission disc 7442 drives the three supporting members 745 to move away from each other, so that the three supporting members 745 are in close contact with the inner side surface of the pipe clamp, at this time, the support mechanism 74 completes the fixation of the pipe clamp.

[0065] Further, when it is necessary to put the pipe clamp on the steel pipe, the staff or the related device fixes the pipe clamp through the support mechanism 74, and then the rotating mechanism 71, the support handle 72 and the electric cylinder 73 deliver the support mechanism 74 and the pipe clamp to the corresponding position, so that the pipe clamp contacts the surface of the steel pipe, and then the screwing device 6 clamps and screws the pipe clamp, after the screwing action of the screwing device 6 is completed, the support mechanism 74 releases the fixation of the pipe clamp, and then returns to the initial position under the driving of the rotating mechanism 71, the support handle 72 and the support mechanism 74.

[0066] In order to realize the support of the pipe clamp and the spraying of lubricating oil, as shown in Figure 14 and ​As shown, the support 745 comprises a support rod 7451 which is slidingly installed in the middle of the installation shell 741, the outer surface of the support rod 7451 is provided with a plurality of transmission arc rods which are used in cooperation with the transmission disc 7442, the middle of the inner cavity of the support rod 7451 is provided with a connecting rod 7452 which extends to the outer side of the support rod 7451 near one end of the connecting ball 743, the upper part of the support rod 7451 is provided with an installation rod 7453, the inner cavity of the installation rod 7453 is communicated with the inner cavity of the support rod 7451, the outer surface of the installation rod 7453 is rotatably connected with a limiting wheel 7454 on both sides, the outer surface of the installation rod 7453 is provided with a spray pipe 7455 on the side near the transmission member 744, the inner cavity of the spray pipe 7455 is communicated with the inner cavity of the installation rod 7453, and the outer surface of the support rod 7451 is provided with a spring 7456 which is fixedly installed on the outer surface of the installation shell 741 near the connecting ball 743.

[0067] Specifically, when the motor 7441 drives the transmission disc 7442 to rotate, the transmission disc 7442 drives the support rod 7451 to move towards the side near the connecting ball 743 through the plurality of transmission arc rods on the outer surface of the support rod 7451, and when the motor 7441 outputs in reverse direction, the support rod 7451 can also be driven to move away from the connecting ball 743, so as to fix the pipe clamp.

[0068] Further, when the support mechanism 74 enters the inner cavity of the pipe clamp and fixes the pipe clamp, the device for conveying lubricating oil connected with the connecting pipe 742 guides the lubricating oil into the inner cavity of the connecting ball 743 through the connecting pipe 742, then the lubricating oil enters the inner cavity of the support rod 7451 through the connecting rod 7452, and then enters the inner cavity of the spray pipe 7455 through the installation rod 7453, and finally the lubricating oil is sprayed to the connection between the pipe clamp and the steel pipe through the spray pipe 7455, so that the screwing device 6 performs the screwing action on the pipe clamp and the steel pipe.

[0069] In the third embodiment, the application further discloses a method for using the screwing machine, and the specific steps are as follows: S1, when it is needed to tighten the steel pipe and the pipe clamp or remove the pipe clamp from the steel pipe, the worker first conveys the steel pipe to the upper part of the base 1 through the related conveying device, in this process, the steel pipe passes through the middle part of the fixing device 4, and when the steel pipe is conveyed to the corresponding position, the four sensors 5 position the steel pipe; S2, after the position detection of the steel pipe by the four sensors 5 is completed, the four sensors 5 transmit signals to the control console, the control console conveys the signals to make the hydraulic cylinder 32 push the sliding table 31 to slide in the base 1, and then the hydraulic cylinder 32 drives the fixing device 4 to move to the middle part of the steel pipe through the support frame 33, so as to clamp the steel pipe more stably; S3, when the mobile device 3 drives the fixed device 4 to move to the corresponding position, the hydraulic cylinder two 34 outputs to drive the mounting plate 421 to rotate through the two connecting plates 43, when the two mounting plates 421 rotate, the two mounting plates 421 will drive the three conical blocks one 422 and the three clamping jaws one 423 to rotate, in the process of the clamping jaw one 423 rotating with the mounting plate 421, the three clamping jaws one 423 will be gradually pushed to the side of approaching each other by the three limit pieces one 411 respectively, until the three clamping jaws one 423 contact with the surface of the steel pipe, so as to complete the clamping and fixing of the steel pipe; S4, when it is needed to take off the pipe clamp from the steel pipe, the rotating mechanism 71 drives the support handle 72, the electric cylinder 73 and the support mechanism 74 to rotate by a certain angle, then the electric cylinder 73 drives the support mechanism 74 to enter the inside of the pipe clamp, then the support mechanism 74 supports the pipe clamp, when it is needed to put the pipe clamp on the steel pipe, the staff or the related device fixes the pipe clamp through the support mechanism 74, then the rotating mechanism 71, the support handle 72 and the electric cylinder 73 transport the support mechanism 74 and the pipe clamp to the corresponding position, so that the pipe clamp contacts with the surface of the steel pipe; S5, when the staff transports the steel pipe through the related transport device, the pipe clamp at the head of the steel pipe needs to enter the middle part of the screwing buckle mechanism 64, at this time, the steel pipe moves to the corresponding position, after the fixed device 4 clamps and fixes the steel pipe, the staff pushes the control mechanism 65 to the corresponding position according to the need of screwing buckle, so as to control the rotating speed of the screwing buckle mechanism 64 driven by the servo motor 63; S6, after the control mechanism 65 is adjusted, the servo motor 63 drives the screwing buckle mechanism 64 to rotate through the transmission mechanism 66, in the process of the screwing buckle mechanism 64 rotating, the screwing buckle mechanism 64 will first clamp the pipe clamp, then the screwing buckle mechanism 64 will drive the pipe clamp to rotate, so as to make the pipe clamp tighten with the steel pipe or make the pipe clamp take off from the steel pipe, so as to complete the screwing buckle action; S7, in the process of taking off the pipe clamp from the steel pipe in the screwing buckle process, and after the screwing buckle device 6 takes off the pipe clamp from the steel pipe, the electric cylinder 73 drives the support mechanism 74 to move away from the fixed device 4, so as to make the support mechanism 74 drive the pipe clamp to contact with the steel pipe, then the rotating mechanism 71 drives the electric cylinder 73 and the support mechanism 74 to rotate by a certain angle through the support handle 72, finally the support mechanism 74 puts the pipe clamp into the inner cavity of the corresponding containing device, while in the process of putting the pipe clamp on the steel pipe in the screwing buckle process, after the screwing buckle device 6 completes the screwing buckle action, the support mechanism 74 releases the fixed state of the pipe clamp, then returns to the initial position under the driving of the rotating mechanism 71, the support handle 72 and the support mechanism 74.

[0070] It should be noted that the specific installation mode and circuit arrangement connection mode and control mode of the inductor 5, the hydraulic cylinder one 32 and the hydraulic cylinder two 34 in the above embodiment one and the servo motor 63, the rotating mechanism 71, the electric cylinder 73 and the transmission member 744 in the above embodiment two are all conventional designs in the prior art, and will not be described in detail in the present application.

[0071] The basic principles and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A button screwing machine, comprising a base (1), characterized in that: Support wheels (2) are provided on both sides of the upper end of the base (1), four sensors (5) are provided in the middle of the upper end of the base (1), a moving device (3) is slidably mounted on one side of the inner cavity of the base (1), the upper part of the moving device (3) extends to the outside of the base (1), a fixing device (4) is provided on the upper part of the moving device (3), a screwing device (6) is provided on the other side of the inner cavity of the base (1), the upper part of the screwing device (6) extends to the outside of the base (1), and a supporting device (7) is provided on the side of the outer surface of the base (1) away from the moving device (3); The moving device (3) includes a slide (31) and a hydraulic cylinder (32), wherein the slide (31) is slidably mounted on both sides of the inner cavity of the base (1), and the hydraulic cylinder (32) is fixedly mounted on the bottom wall of the inner cavity of the base (1). The output end of the hydraulic cylinder (32) is fixedly connected to the lower part of the outer surface of the slide (31). The upper end of the slide (31) is provided with a support frame (33), and one side of the outer surface of the support frame (33) is fixedly connected to the hydraulic cylinder (34). The fixing device (4) includes a mounting wheel (41), the mounting wheel (41) is fixedly mounted on the middle part of the upper end of the support frame (33), the inner surface of the mounting wheel (41) is provided with three limit members (411) in an array, the inner cavity of the mounting wheel (41) is provided with a clamping mechanism (42) in the middle part, the outer surface of the clamping mechanism (42) is provided with connecting plates (43) on both sides, and one side of the outer surface of the two connecting plates (43) is rotatably connected to the output end of the hydraulic cylinder (34).

2. The button fastening machine according to claim 1, characterized in that: The clamping mechanism (42) includes two mounting plates (421), and the two mounting plates (421) are rotatably mounted on both sides of the outer surface of the mounting wheel (41). Three conical blocks (422) are fixedly mounted between the two mounting plates (421), and three clamping claws (423) are also slidably mounted between the two mounting plates (421). The three conical blocks (422) and the three clamping claws (423) are spaced apart, and the outer surfaces of the three clamping claws (423) are connected to the outer surfaces of the two mounting plates (421) by four springs, respectively. The three clamping claws (423) are adapted for use with the three limiting members (411).

3. The button fastening machine according to claim 1, characterized in that: The screwing device (6) includes a mounting frame (61), both sides of the outer surface of the mounting frame (61) are fixedly connected to the upper end of the base (1), and the lower end of the mounting frame (61) is fixedly mounted on the bottom wall of the inner cavity of the base (1), and both sides of the outer surface of the mounting frame (61) are provided with limit plates (62), a servo motor (63) is provided on the side of the lower part of the outer surface of the mounting frame (61) away from the moving device (3), a control mechanism (65) is provided at the lower part of the mounting frame (61), a transmission mechanism (66) is provided at the lower part of the inner cavity of the mounting frame (61), and the lower part of the transmission mechanism (66) is fixedly connected to the output end of the servo motor (63), and a screwing mechanism (64) is provided at the upper part of the inner cavity of the mounting frame (61).

4. The button fastening machine according to claim 3, characterized in that: The control mechanism (65) includes a second transmission rod (651), the second transmission rod (651) is rotatably mounted on the lower part of the mounting frame (61), and one end of the second transmission rod (651) extends to the outside of the base (1), a positioning plate (652) is provided on one side of the outer surface of the second transmission rod (651), two positioning grooves (6521) are provided on the upper part of the positioning plate (652), and positioning buckles (653) fixedly mounted on the outer surface of the base (1) are provided on both sides of the positioning plate (652), the positioning grooves (6521) and the positioning buckles (653) are adapted for use, and a U-shaped rod (654) is provided on the other side of the outer surface of the second transmission rod (651), and an inner gear ring (655) is rotatably mounted on the upper part of the U-shaped rod (654).

5. The button fastening machine according to claim 4, characterized in that: The transmission mechanism (66) includes a transmission rod (661) and a transmission handle (664), and the transmission rod (661) and the transmission handle (664) are both rotatably mounted on the lower part of the inner cavity of the mounting frame (61), and the end of the mounting frame (61) away from the moving device (3) is fixedly connected to the output end of the servo motor (63), the middle part of the outer surface of the transmission rod (661) is meshed with the inner surface of the inner gear ring (655), and the outer surfaces of the transmission rod (661) and the transmission handle (664) are divided into two sides. A gear set 1 (662) and a gear set 2 (663) are provided respectively, and the gear ratios of the gear set 1 (662) and the gear set 2 (663) are different. The gears located at the lower part of the gear set 1 (662) and the gear set 2 (663) are adapted for use with the inner gear ring (655). Gears 1 (666) rotatably mounted on two limit plates (62) are provided on both sides above the transmission handle (664), and the outer surfaces of the two gears 1 (666) are meshed and connected with the middle part of the transmission handle (664).

6. The button fastening machine according to claim 5, characterized in that: The screwing mechanism (64) includes two mounting plates (641), a transmission wheel (642) is provided on the outer side between the two mounting plates (641), the transmission wheel (642) is rotatably mounted on the upper part of the inner cavity of the mounting frame (61), the transmission wheel (642) is meshed and connected with two gears (666), the outer surfaces of the two mounting plates (641) are rotatably connected with the outer surface of the transmission wheel (642), and three conical blocks (643) are provided on the inner side between the two mounting plates (641). Three clamping jaws (644) slidably mounted on the outer surfaces of the two mounting plates (641) are provided between the three conical blocks (643), and the three conical blocks (643) and the three clamping jaws (644) are spaced apart. The outer surfaces of the three clamping jaws (644) and the outer surfaces of the two mounting plates (641) are connected respectively by four springs (6412). A limiting pin (6411) is provided on the outer surface of the mounting plate (641) away from the fixing device (4).

7. The button fastening machine according to claim 6, characterized in that: The transmission wheel (642) includes an outer gear ring (6421), which is rotatably mounted on the upper part of the inner cavity of the mounting frame (61), and the outer gear ring (6421) is meshed with two gears (666). Two limiting grooves (6423) are provided on the outer surface of the outer gear ring (6421) near the limiting pin (6411), and the two limiting grooves (6423) are adapted for use with the limiting pin (6411). Three limiting members (6422) are provided on the inner surface of the outer gear ring (6421), and the three limiting members (6422) are adapted for use with the three clamping jaws (644).

8. The button fastening machine according to claim 1, characterized in that: The support device (7) includes a rotating mechanism (71), the rotating mechanism (71) is fixedly mounted on the outer surface of the base (1), a support handle (72) is provided on the upper portion of the rotating mechanism (71), an electric cylinder (73) is provided on one side of the outer surface of the support handle (72), and a supporting mechanism (74) is provided at the output end of the electric cylinder (73); The support mechanism (74) includes a mounting shell (741), one side of the outer surface of the mounting shell (741) is fixedly connected to the output end of the electric cylinder (73), a connecting pipe (742) is provided on one side of the outer surface of the mounting shell (741), the connecting pipe (742) is fixedly installed inside the output rod of the electric cylinder (73), and the end face of the connecting pipe (742) is connected to the pipe opening for conveying lubricating oil, a connecting ball (743) is provided in the middle of the inner cavity of the mounting shell (741), one end of the connecting ball (743) extends to the outside of the mounting shell (741), and the end of the connecting ball (743) extending to the outside of the mounting shell (741) is fixedly connected to the end face of the connecting pipe (742), a transmission member (744) is provided on the other side of the outer surface of the mounting shell (741), and three supporting members (745) are slidably installed in the middle of the mounting shell (741); The transmission member (744) includes a second motor (7441), the second motor (7441) being fixedly mounted on the outer surface of the mounting shell (741), the output end of the second motor (7441) extending into the interior of the mounting shell (741), and a transmission disc (7442) being provided at the output end of the mounting shell (741).

9. The button fastening machine according to claim 8, characterized in that: The support member (745) includes a support rod (7451), the support rod (7451) is slidably mounted in the middle of the mounting shell (741), a plurality of transmission arc rods are provided on one side of the outer surface of the support rod (7451), and the plurality of transmission arc rods are adapted for use with the transmission disk (7442), a connecting rod (7452) is provided in the middle of the inner cavity of the support rod (7451), and one end of the connecting rod (7452) close to the connecting ball (743) extends to the outside of the support rod (7451), and a mounting rod (745) is provided on the upper part of the support rod (7451). 3), the inner cavity of the mounting rod (7453) is communicated with the inner cavity of the support rod (7451), and both sides of the outer surface of the mounting rod (7453) are rotatably connected to the limiting wheels (7454), and a nozzle (7455) is provided on the side of the outer surface of the mounting rod (7453) close to the transmission member (744), and the inner cavity of the nozzle (7455) is communicated with the inner cavity of the mounting rod (7453), and a spring 2 (7456) fixedly mounted on the outer surface of the mounting shell (741) is provided on the side of the outer surface of the support rod (7451) close to the connecting ball (743).

10. A method of using a button fastening machine according to any one of claims 1 to 9, characterized in that: include: S1. When it is necessary to tighten the steel pipe and the pipe clamp or remove the pipe clamp from the steel pipe, the staff first transports the steel pipe to the upper part of the base (1) through the relevant transport device. During this process, the steel pipe passes through the middle of the fixing device (4). When the steel pipe is transported to the corresponding position, the four sensors (5) will locate the steel pipe; S2. After the four sensors (5) have finished detecting the position of the steel pipe, the four sensors (5) transmit signals to the control console, which transmits signals to the hydraulic cylinder 1 (32) to push the slide (31) to slide inside the base (1), thereby causing the hydraulic cylinder 1 (32) to drive the fixing device (4) to move to the middle of the steel pipe through the support frame (33), so as to clamp the steel pipe more firmly; S3. After the moving device (3) drives the fixing device (4) to move to the corresponding position, the output of the hydraulic cylinder 2 (34) drives the mounting plate (421) to rotate through the two connecting plates (43). When the two mounting plates (421) rotate, the two mounting plates (421) drive the three conical blocks 1 (422) and the three clamping claws 1 (423) to rotate. In the process of the clamping claw 1 (423) rotating with the mounting plate (421), the three clamping claws 1 (423) are gradually pushed to the side closer to each other by the three limiting members 1 (411) until the three clamping claws 1 (423) contact the surface of the steel pipe, thereby completing the clamping and fixing of the steel pipe; S4. When the pipe clamp needs to be removed from the steel pipe, the rotating mechanism (71) drives the support handle (72), the electric cylinder (73) and the support mechanism (74) to rotate a certain angle, and then the electric cylinder (73) drives the support mechanism (74) to enter the interior of the pipe clamp, and then the support mechanism (74) supports the pipe clamp. When the pipe clamp needs to be put on the steel pipe, the staff or related equipment fixes the pipe clamp through the support mechanism (74), and then the rotating mechanism (71), the support handle (72) and the electric cylinder (73) transport the support mechanism (74) and the pipe clamp to the corresponding position, so that the pipe clamp contacts the surface of the steel pipe; S5. When the worker transports the steel pipe through the relevant conveying device, the pipe clamp at the head of the steel pipe needs to enter the middle of the screwing mechanism (64). At this time, the steel pipe moves to the corresponding position. After the fixing device (4) clamps and fixes the steel pipe, the worker pushes the control mechanism (65) to the corresponding position according to the need of screwing, and then controls the speed of the screwing mechanism (64) driven by the servo motor (63); S6. After the control mechanism (65) is adjusted, the servo motor (63) drives the screwing mechanism (64) to rotate through the transmission mechanism (66). During the rotation of the screwing mechanism (64), the screwing mechanism (64) first clamps the pipe clamp, and then the screwing mechanism (64) drives the pipe clamp to rotate, thereby tightening the pipe clamp and the steel pipe or removing the pipe clamp from the steel pipe, thereby completing the screwing action; S7. During the screwing process in which the pipe clamp needs to be removed from the steel pipe, and after the screwing device (6) removes the pipe clamp from the steel pipe, the electric cylinder (73) drives the support mechanism (74) to move to the side away from the fixing device (4), thereby causing the support mechanism (74) to drive the pipe clamp to thrust contact with the steel pipe. Thereafter, the rotating mechanism (71) drives the electric cylinder (73) and the support mechanism (74) to rotate a certain angle through the support handle (72), and finally the support mechanism (74) places the pipe clamp into the inner cavity of the corresponding holding device. During the screwing process in which the pipe clamp needs to be sleeved on the steel pipe, after the screwing device (6) completes the screwing action, the support mechanism (74) releases the fixing state of the pipe clamp, and then returns to the initial position under the drive of the rotating mechanism (71), the support handle (72) and the support mechanism (74).

Images