Automatic pipe penetrating machine for wire splicing sleeve and working method of automatic pipe penetrating machine

Abstract

The invention discloses an automatic wire splicing sleeve penetrating machine and a working method thereof, and relates to the field of power transmission line tension stringing construction, the structure of the automatic wire splicing sleeve penetrating machine comprises a main body frame, a horizontally arranged guide rod is arranged on the main body frame, a moving frame is slidably arranged on the guide rod, and a wire fastener is arranged on the moving frame; the lead screw assembly is arranged below the guide rod, is in transmission connection with the moving frame and can drive the moving frame to move horizontally; the rotating mechanism assembly is arranged on the main body frame, a splicing sleeve fastener coaxial with the wire fastener is arranged on the rotating mechanism assembly, the splicing sleeve fastener is connected with a rotating device, and the rotating device can drive the splicing sleeve fastener to rotate. The automatic pipe penetrating machine for the wire splicing sleeve is matched with the working method of the automatic pipe penetrating machine, automatic rotation can be designed according to the stranding characteristic of outer aluminum wires of the wire, the friction resistance of pipe penetrating is reduced, the phenomenon that the wire extrudes a lantern is avoided, mechanical pipe penetrating is achieved, the pipe is spliced in the pipe penetrating process, manual operation is reduced, and the working efficiency is improved. And the wire quality during pipe penetrating is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of power transmission line tension stringing construction, in particular to an automatic wire connecting pipe threading machine and a working method thereof. Background Art

[0002] Wire crimping is a concealed project for tension stringing of power transmission lines. Wire threading is an important process for wire crimping, which mainly includes threading steel tubes and aluminum tubes. When connecting and docking the wires, it is necessary to first put on the aluminum tube on the outside of the wire, and then break up the steel core inside the wire, insert the broken steel core into both ends of the steel tube for overlap and plug-in inside the steel tube, and then crimp the connected steel splicing tube, and finally connect the aluminum tube outside the wire to the outside of the steel tube for crimping. Due to the small diameter of the steel tube, docking is difficult. In the technical solution known to the inventor, 3-5 people are required to manually cooperate in pushing the wire. During the process of pushing the wire through the tube, the splicing tube needs to be rotated manually and synchronously. The friction resistance is reduced by rotation, thereby reducing the thrust required for threading the tube. However, it requires multiple people to participate in the operation at the same time, which increases labor costs and has low work efficiency. Summary of the invention

[0003] The purpose of the present invention is to provide an automatic wire joint pipe threading machine and a working method thereof to solve the problems existing in the above-mentioned prior art, which can realize mechanical pipe threading and automatically rotate the joint pipe during the pipe threading process, thereby reducing manual operation and improving work efficiency.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] The present invention provides an automatic wire joint pipe threading machine, comprising:

[0006] A main frame, wherein the main frame is provided with a horizontally arranged guide rod, a movable frame is slidably provided on the guide rod, and a wire fastener is provided on the movable frame;

[0007] A lead screw assembly is disposed below the guide rod and is transmission-connected to the moving frame to drive the moving frame to move horizontally;

[0008] The rotating mechanism assembly is arranged on the main frame. The rotating mechanism assembly is provided with a connecting tube fastener coaxial with the wire fastener. The connecting tube fastener is connected with a rotating device, and the rotating device can drive the connecting tube fastener to rotate.

[0009] Optionally, the rotating mechanism assembly includes a main frame body, a rotating motor is provided on the main frame body, the rotating motor is transmission-connected to a driven gear, a hollow annular rotating gear is provided above the driven gear, the outer side of the rotating gear is meshed with the driven gear, and the connecting pipe fastener is fixedly provided on the inner side of the rotating gear.

[0010] Optionally, a driving pulley is provided on the main frame, and the driving pulley is transmission-connected to a rotating motor; two driven pulleys arranged in parallel and at the same height are provided above the driving pulley, and the driving pulley is transmission-connected to the two driven pulleys through a closed transmission belt; a driven gear is fixedly provided at the end of the wheel shaft of the driven pulley, and a hollow annular rotating gear is provided above the driven gear, and the rotating gear is rotatably arranged in the main frame through a guide bearing, and a notch is provided on the top of the main frame; a radial through groove is provided on the rotating gear, and the outer side of the rotating gear is always meshed with at least one of the driven gears, and the connecting pipe fastener is fixedly provided on the inner side of the rotating gear.

[0011] Optionally, the main frame includes a base, which is fixed on the main frame, a rectangular frame with a hollow interior is provided on the upper part of the base, and arc frames with a hollow interior and penetrating the rectangular frame are provided on both sides of the top of the rectangular frame, and the gap is formed between the two symmetrical arc frames; the two sides of the rotating gear are rotatably connected to the inner side wall of the arc frame through guide bearings; the driving pulley, the driven pulley and the driven gear are all located in the rectangular frame.

[0012] Optionally, the screw assembly includes a horizontally arranged screw, a screw nut is provided on the screw, the screw nut is fixedly connected to the movable frame, and the screw transmission is connected to a driving device.

[0013] Optionally, the driving device includes an electrical control box, which has a built-in tube-threading motor, and the output shaft of the tube-threading motor is connected to the screw transmission through a gear reduction box; the electrical control box is provided with a power supply and a controller connected to the tube-threading motor, and the controller is provided with a control knob, and the control knob can control the speed and rotation direction of the rotating motor and the tube-threading motor.

[0014] Optionally, a rotating handwheel is fixedly provided at one end of the lead screw.

[0015] Optionally, the connecting tube fastener includes a connecting tube upper fastener and a connecting tube lower fastener with a semicircular cross-section, the connecting tube lower fastener is fixed to the inner bottom of the rotating gear, one end of the connecting tube upper fastener is hinged to the connecting tube lower fastener, and the other end can be locked and connected with the connecting tube lower fastener, and a connecting tube gasket is provided on the inner side of the connecting tube fastener, and the connecting tube gasket includes an aluminum connecting tube gasket and a steel connecting tube gasket.

[0016] Optionally, the wire fastener includes an upper wire fastener and a lower wire fastener with a semicircular cross-section, the lower wire fastener is fixed on the top of the movable frame, one end of the upper wire fastener is hinged to the lower wire fastener, and the other end can be locked and connected to the lower wire fastener, and a wire pad is provided on the inner side of the wire fastener.

[0017] The present invention also provides a working method of the automatic wire joint pipe threading machine, comprising the following steps:

[0018] Step 1: first load the aluminum connecting tube liner into the connecting tube fastener, and clamp the aluminum connecting tube in the center on the aluminum connecting tube liner in the connecting tube fastener; then clamp the left-side wire located on the left side of the connecting tube fastener and whose end face has been cut and stripped on the wire fastener, and the lead screw assembly drives the moving frame to bring the left-side wire close to the aluminum connecting tube to perform the pipe threading action. At the same time, the rotating motor drives the connecting tube fastener to rotate through the rotating mechanism assembly, simulating the action of twisting the aluminum connecting tube during manual pipe threading to assist the pipe threading operation; the moving frame moves to the right to a position close to the connecting tube fastener to complete a threading operation, open the wire fastener, drive the moving frame to the left and re-fasten the left-side wire, and perform a second threading operation until the end of the left-side wire passes through the set length from the right side of the aluminum connecting tube, and the aluminum connecting tube is installed in place;

[0019] Step 2: clamp the connected left-side conductor and aluminum connecting tube on the left-side conductor fastener, then replace the aluminum connecting tube liner in the connecting tube fastener with a steel connecting tube liner, and then clamp the steel connecting tube in the center on the steel connecting tube liner in the connecting tube fastener; then insert the steel core of the right-side conductor located on the right side of the connecting tube and whose end face has been cut and stripped into the steel connecting tube, and fix the right-side conductor at the same time; the lead screw assembly drives the moving frame to carry the left-side conductor to perform the pipe threading action, and at the same time, the rotating motor drives the connecting tube fastener to rotate through the rotating mechanism assembly, simulating the action of twisting the steel connecting tube during manual pipe threading, and assisting the pipe threading operation, until the steel core of the left-side conductor is inserted into the steel connecting tube and contacts with the steel core of the right-side conductor. After the pipe threading is completed, the steel connecting tube is crimped;

[0020] Step three, replace the steel connecting tube liner in the connecting tube fastener with an aluminum connecting tube liner. After the steel connecting tube is crimped, clamp the aluminum connecting tube on the left conductor into the connecting tube fastener. At this time, the steel connecting tube is located on the right side of the connecting tube fastener, and the conductor fastener clamps the left conductor; the screw assembly drives the moving frame to move with the left conductor away from the connecting tube fastener to perform the pipe threading action. At the same time, the rotating motor drives the connecting tube fastener to rotate through the rotating mechanism assembly, simulating the action of twisting the connecting tube during manual pipe threading, to assist the pipe threading operation. The steel connecting tube is inserted into the aluminum connecting tube from the right end until the two ends of the aluminum connecting tube are aligned with the markings of the left conductor and the right conductor respectively, completing the pipe threading operation, and then crimping the aluminum connecting tube.

[0021] Compared with the prior art, the present invention has achieved the following technical effects:

[0022] The present invention aims at the technical feature of reducing friction resistance by rotating the connecting tube during the wire connecting tube threading operation. The wire is clamped by the wire fastener, and the connecting tube fastener clamps the aluminum tube or the steel tube to keep them on the same axis. The wire is then driven to move by the screw assembly, and the rotating mechanism assembly simulates the action of manually twisting the connecting tube to realize the function of automatic tube threading to replace the manual tube threading work, thereby improving work efficiency and effectively solving the problem of time-consuming and labor-intensive manual tube threading due to large resistance inside the tube. The straightness of the tube threading is ensured, the automation and efficiency of the wire connecting tube threading operation is realized, and the intensity of manual labor is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a structural schematic diagram of an automatic pipe threading machine for conductor splicing pipes in one embodiment of the present invention;

[0025] Figure 2 It is a cross-sectional view of an automatic pipe threading machine for conductor splicing pipes in one embodiment of the present invention;

[0026] Figure 3 is a schematic diagram of a lead screw assembly in one embodiment of the present invention;

[0027] Figure 4 is a schematic diagram of a rotating mechanism assembly in one embodiment of the present invention;

[0028] Figure 5 It is a schematic diagram of the structure of an electric control box in one embodiment of the present invention;

[0029] Figure 6 It is a process schematic diagram of step 1 of the working method of the automatic pipe threading machine for conductor splicing pipes in one embodiment of the present invention;

[0030] Figure 7 It is a schematic diagram of the process of step 2 of the working method of the automatic pipe threading machine for conductor splicing pipes in one embodiment of the present invention;

[0031] Figure 8 The present invention is a schematic diagram of step 3 of the working method of the automatic pipe threading machine for conductor splicing pipes in one embodiment of the present invention.

[0032] In the figure: 1-rotating hand wheel, 2-gear reduction box, 3-electric control box, 301-power switch, 302-charging port, 303-wire control interface, 304-tube threading knob, 305-twist knob, 4-main frame, 5-rotating motor, 6-right vertical plate, 7-moving frame, 8-connecting tube fastener, 9-sliding frame, 10-tube threading motor, 11-screw assembly, 12-rotating mechanism assembly, 121-driving pulley, 122-synchronous belt, 123-driven pulley, 124-guide bearing, 125-rotating gear, 126-driven gear, 127-main frame, 13-wire fastener, 14-wire pad, 15-connecting tube pad, 16-guide rod, 17-support rod, 18-wire, 19-transmission gear, 20-linear bearing, 21-aluminum connecting tube, 22-steel connecting tube. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] The purpose of the present invention is to provide an automatic wire joint pipe threading machine and a working method thereof to solve the problems existing in the above-mentioned prior art, which can realize mechanical pipe threading and automatically rotate the joint pipe during the pipe threading process, thereby reducing manual operation and improving work efficiency.

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] A connecting tube is a device or accessory used to connect or splice wires such as electric wires, cables, and optical fibers. The current wire connecting tube threading operation generally uses multiple people to hold the wire and the connecting tube separately, and manually connect and pull them so that one end of the wire is inserted into the connecting tube, which is inefficient. The present invention provides an automatic wire connecting tube threading machine that can solve the above problems. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, it includes a main frame 4, a horizontally arranged guide rod 16 is provided on the main frame 4, a movable frame 7 is slidably provided on the guide rod 16 through a linear bearing 20, and a wire fastener 13 is provided on the movable frame 7; a screw assembly 11 is arranged below the guide rod 16, which is transmission-connected with the movable frame 7 and can drive the movable frame 7 to move horizontally; a rotating mechanism assembly 12 is arranged on the main frame 4, and a connecting tube fastener 8 coaxial with the wire fastener 13 is provided on the rotating mechanism assembly 12, and the connecting tube fastener 8 is connected to a rotating device, and the rotating device can drive the connecting tube fastener 8 to rotate.

[0037] In a specific embodiment, the rotating mechanism assembly 12 includes a main frame body 127, on which a rotating motor 5 and a driving pulley 121 are provided, and above the driving pulley 121 are two parallel and equidistant driven pulleys 123, and the driving pulley 121 is connected to the two driven pulleys 123 through a closed transmission belt; a driven gear 126 is fixedly provided at the end of the axle of the driven pulley 123, and a hollow annular rotating gear 125 is provided above the driven gear 126, and the rotating gear 125 is rotatably arranged in the main frame body 127 through a guide bearing 124, and a notch is provided at the top of the main frame body 127; a radial through groove is provided on the rotating gear 125, and the outer side of the rotating gear 125 is always meshed with at least one driven gear 126, and a connecting pipe fastener 8 is fixedly provided on the inner side of the rotating gear 125. The active pulley 121 is driven by the rotating motor 5, and the driven pulley 123 and the driven gear 126 are driven to rotate through the synchronous belt 122, and finally the rotating gear 125 is driven to rotate, and the connecting tube is clamped by the connecting tube fastener 8 to realize the simulated torsion of the connecting tube, so as to achieve the effect of reducing friction; the rotating gear 125 is a slotted design, and the radial through groove provided therein provides a clamping space, so that the fastener on the connecting tube can be opened at this position, so that the connecting tube can be easily clamped, and the axial clamping of the connecting tube is realized, so that the rotation is not eccentric, and the design of the two driven gears 126 ensures that the radial through groove of the rotating gear 125 passes through one of the driven gears 126 without getting stuck or losing teeth, and there is always at least one driven gear 126 engaged with the rotating gear 125.

[0038] Specifically, the main frame 127 of the present invention includes a base, which is fixed on the main frame 4. A rectangular frame with a hollow interior is provided on the upper part of the base. Arc frames with a hollow interior and connected to the rectangular frame are provided on both sides of the top of the rectangular frame. A gap is formed between the two symmetrical arc frames, and the gap allows the fasteners on the connecting pipe to be opened, thereby installing and removing the connecting pipe; the two sides of the rotating gear 125 are rotatably connected to the inner side wall of the arc frame through guide bearings 124, which not only ensures the rotation of the rotating gear 125, but also can provide a certain degree of protection for the rotating gear 125.

[0039] In a specific embodiment, a left vertical plate, a main frame body 127 and a right vertical plate 6 are fixedly provided on the main frame 4 from left to right in sequence. The right vertical plate 6 is connected to the main frame body 127 through a support rod 17. The screw assembly 11 is located between one end of the left vertical plate of the main frame 4 and the main frame body 127. The screw assembly 11 is transmission-connected with a movable frame 7. A wire fastener 13 is provided on the top of the movable frame 7. The wire fastener 13 can fix and fasten the wire 18, and the wire fastener 13 is coaxially arranged with the connecting pipe fastener 8. The wire 18 is fixed on the wire fastener 13, and the connecting pipe is fixed on the connecting pipe fastener 8. The screw assembly 11 drives the movable frame 7 to move left and right, thereby realizing the pipe threading operation at one end of the wire 18.

[0040] In order to achieve better coaxiality during the horizontal movement of the mobile frame 7 and more accurate docking of one end of the wire 18 with the pipe mouth of the connecting pipe, a horizontally arranged guide rod 16 is fixedly connected between the right vertical plate 6 and the left vertical plate. Two parallel and equal-height guide rods 16 make the thrust more balanced, the operation more stable, and avoid tilting. The left and right sides of the main frame 127 are respectively fixedly connected to the guide rod 16, and the mobile frame 7 is slidably penetrated on the guide rod 16, and the mobile frame 7 can move horizontally along the guide rod 16. In a preferred embodiment, a sliding frame 9 is provided on the guide rod 16 between the main frame 127 and the right vertical plate 6, and a wire fastener 13 is provided on the top of the sliding frame 9, which can be used to fasten and clamp the wire 18 passing through the connecting pipe.

[0041] The screw assembly 11 of this embodiment adopts a ball screw nut assembly, which can convert low torque into high thrust. Screws of different specifications can be selected according to requirements to meet different thrust requirements. Its structure includes a horizontally arranged screw, on which a screw nut is provided, and the screw nut is fixedly connected to the movable frame 7. A gear reduction box 2 is provided on the left vertical plate, and a transmission gear 19 of the gear reduction box 2 is fixedly sleeved on the screw. The bottom of the transmission gear 19 is meshed and connected to the driving gear, and the driving gear is fixedly connected to the output shaft of the tube-threading motor 10, and the tube-threading motor 10 is arranged in the electric control box 3. The electric control box 3 is provided with a power supply and a controller connected to the tube-threading motor 10. The controller is provided with a control knob, which can control the speed and rotation direction of the tube-threading motor 10. The electric control box 3 and the controller provided therein are both existing mature structures, so they are not described in detail. A power switch 301 is provided on the box body of the electric control box 3 for turning on or off the controller. The electric control box 3 can use a built-in power supply or an external power supply. Its built-in power supply uses a battery. A charging port 302 and a wire control interface 303 are also provided on the box body for charging and shutting down the battery in the electric control box 3. A controller is connected, and the control knobs include a tube threading knob 304 and a twist knob 305. The tube threading knob 304 is used to control the speed and rotation direction of the tube threading motor 10, and the twist knob 305 is used to control the rotation of the rotating motor 5, so as to achieve the moving frame 7 approaching or moving away from the connecting tube fastener 8 at different speeds, and rotating the connecting tube fastener 8 at the same time; an antenna connected to the controller is provided on the electric control box 3, and the antenna is wirelessly connected to a remote control, and can also be controlled by the remote control. The remote control can control the speed and rotation direction of all motors including the rotating motor and the tube threading motor.

[0042] In order to achieve more refined operation, a rotating handwheel 1 is fixedly provided at the end of the screw away from the main frame 127, and the rotating handwheel 1 can fine-tune the rotation of the transmission screw assembly 11.

[0043] The main frame 127 and the reduction box are both provided with proximity switch sensors, and the mobile frame 7 is provided with a proximity switch. When the horizontal distance between the proximity switch and the proximity switch sensor reaches the set distance, the proximity switch is triggered, and the alarm device connected thereto can sound an alarm. Since the proximity switch is electrically connected to the tube threading motor 10, it can automatically control the tube threading motor 10 to stop, so that the proximity switch sensor can be used for the travel limit of the mobile frame 7 to avoid over-limit travel and prevent damage to the equipment. The control structure of the proximity switch and the tube threading motor 10 belongs to the known technology. For example, a relay can be set between the tube threading motor 10 and the power supply. The tube threading motor 10 is connected to the power supply through the relay contacts. When the relay contacts are closed, the tube threading motor 10 is powered on and operated; when the relay contacts are disconnected, the tube threading motor 10 is powered off and stopped. The proximity switch can control the relay on and off, thereby realizing the operation that the proximity switch can automatically control the tube threading motor 10 to stop.

[0044] In order to achieve the fixation of the connecting pipe, the connecting pipe fastener 8 of this embodiment adopts a two-half structure, which includes a connecting pipe upper fastener and a connecting pipe lower fastener with a semicircular cross-section. The connecting pipe lower fastener is fixedly arranged on the top of the main frame 127, and one end of the connecting pipe upper fastener is hinged to the connecting pipe lower fastener, and the other end can be locked and connected with the connecting pipe lower fastener. The locking connection method is a snap connection or a bolt connection. For example, a threaded hole can be opened at one end of the connecting pipe upper fastener away from the hinge point, and its corresponding connecting pipe A threaded hole is also provided at the same side of the lower tube fastener, and bolts can be inserted between the two threaded holes to realize the locking connection of the upper fastener and the lower fastener of the connecting tube. A wire gasket 14 is provided on the inner side of the wire fastener 13, and a connecting tube gasket 15 is provided on the inner side of the connecting tube fastener 8. The cross section of the connecting tube gasket 15 is a semicircular ring structure, and a smooth connection groove is provided on the side where the connecting tube gasket 15 is connected to the connecting tube fastener 8. The connecting tube gasket 15 adapts to different connecting tube connections by changing different inner diameters. It can also be replaced with an aluminum connecting tube gasket or a steel connecting tube gasket according to different materials of connecting tubes.

[0045] The wire fastener 13 includes an upper wire fastener 18 and a lower wire fastener 18 with a semicircular cross-section. The lower wire fastener 18 is fixedly arranged on the top of the movable frame 7 or the sliding frame 9. One end of the upper wire fastener 18 is hinged to the lower wire fastener 18, and the other end can be locked and connected with the lower wire fastener 18. Its locking connection method is the same as the locking connection method of the connecting pipe. A nylon pad for the wire 18 is provided on the inner side of the wire fastener 13.

[0046] When the present invention is working, the power is provided by the tube threading motor 10, which increases the torque through the reduction box and is transmitted to the screw assembly 11 to increase the thrust to drive the movable frame 7 to move left and right, thereby realizing the action of threading the wire 18; the aluminum connecting tube pad or the steel connecting tube pad can be installed in the connecting tube fastener 8 as needed, so as to achieve the clamping effect when the two connecting tubes are threaded; the proximity switch sensor is installed on the main frame body 127 and the reduction box, which plays a limiting role in the repeated movement of the movable frame 7 to avoid the phenomenon of collision.

[0047] The present invention also provides a working method of the automatic pipe threading machine for connecting pipes of conductors 18, such as Figure 6 , Figure 7 and Figure 8 As shown, the following steps are included:

[0048] Step 1: first, load the aluminum joint tube liner into the joint tube fastener 8, and clamp the aluminum joint tube 21 in the center on the aluminum joint tube liner in the joint tube fastener 8; then clamp the left wire 18 located on the left side of the joint tube fastener 8 and whose end surface has been cut and stripped on the wire liner 14 in the wire fastener 13, and operate the button on the remote control or the electric control box 3, the tube threading motor 10 will drive the screw assembly 11 after deceleration and torque increase through the gear reduction box 2, and the screw assembly 11 drives the moving frame 7 to bring the left wire 18 close to the aluminum The connecting tube 21 is threaded, and at the same time, the rotating motor 5 drives the connecting tube fastener 8 to rotate through the rotating mechanism assembly 12, simulating the action of twisting the aluminum connecting tube 21 during manual threading, to assist the threading operation; the moving frame 7 moves to the right to a position close to the connecting tube fastener 8 to complete a threading operation, open the wire fastener 13, drive the moving frame 7 to the left and re-fasten the left wire 18, and perform a second threading operation until the end of the left wire 18 passes through the set length from the right side of the aluminum connecting tube 21, and the aluminum connecting tube 21 is installed in place;

[0049] Step 2: Clamp the connected left-side wire 18 and aluminum connecting tube 21 on the left-side wire fastener 13, then replace the aluminum connecting tube liner in the connecting tube fastener 8 with a steel connecting tube liner, and then clamp the steel connecting tube 22 in the center on the steel connecting tube liner in the connecting tube fastener 8; then insert the steel core of the right-side wire 18 located on the right side of the connecting tube and whose end face has been cut and stripped into the steel connecting tube 22, and fix the right-side wire 18 at the same time; the screw assembly 11 drives the moving frame 7 to carry the left-side wire 18 to perform the pipe threading action, and at the same time, the rotating motor 5 drives the connecting tube fastener 8 to rotate through the rotating mechanism assembly 12, simulating the action of twisting the steel connecting tube 22 during manual pipe threading, and assisting the pipe threading operation, until the steel core of the left-side wire 18 penetrates into the steel connecting tube 22 and contacts with the steel core of the right-side wire 18, and the steel connecting tube 22 is crimped after the pipe threading is completed;

[0050] Step three, replace the steel connecting tube liner in the connecting tube fastener 8 with an aluminum connecting tube liner. After the steel connecting tube 22 is crimped, the aluminum connecting tube 21 on the left wire 18 is clamped into the connecting tube fastener 8. At this time, the steel connecting tube 22 is located on the right side of the connecting tube fastener 8, and the wire fastener 13 clamps the left wire 18; the screw assembly 11 drives the moving frame 7 to move with the left wire 18 away from the connecting tube fastener 8 to perform the pipe threading action. At the same time, the rotating motor 5 drives the connecting tube fastener 8 to rotate through the rotating mechanism assembly 12, simulating the action of twisting the connecting tube during manual pipe threading, assisting the pipe threading operation, and the steel connecting tube 22 is inserted into the aluminum connecting tube 21 from the right end of the aluminum connecting tube 21 until the two ends of the aluminum connecting tube 21 are aligned with the marked positions of the left wire 18 and the right wire 18 respectively. The mark is drawn manually on the wire 18 with a marker according to actual needs. The specific position can be flexibly selected according to actual working conditions to complete the pipe threading operation, and then the aluminum connecting tube 21 is crimped. The crimping process of the steel connecting pipe 22 and the aluminum connecting pipe 21 can be performed using a crimping machine. The crimping machine and the crimping process are mature and known structures and solutions, so they are not described in detail.

[0051] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. An automatic wire joint tube threading machine, characterized in that: include: A main frame, wherein the main frame is provided with a horizontally arranged guide rod, a movable frame is slidably provided on the guide rod, and a wire fastener is provided on the movable frame; A lead screw assembly is disposed below the guide rod and is transmission-connected to the moving frame to drive the moving frame to move horizontally; The rotating mechanism assembly is arranged on the main frame. The rotating mechanism assembly is provided with a connecting tube fastener coaxial with the wire fastener. The connecting tube fastener is connected with a rotating device, and the rotating device can drive the connecting tube fastener to rotate.

2. The automatic wire joint tube threading machine according to claim 1, characterized in that: The rotating mechanism assembly includes a main frame, a rotating motor is provided on the main frame, the rotating motor is transmission-connected to a driven gear, a hollow annular rotating gear is provided above the driven gear, the outer side of the rotating gear is meshed with the driven gear, and the connecting pipe fastener is fixedly provided on the inner side of the rotating gear.

3. The automatic wire joint tube threading machine according to claim 2 is characterized in that: A driving pulley is provided on the main frame, and the driving pulley is transmission-connected to a rotating motor; two driven pulleys arranged in parallel and at the same height are provided above the driving pulley, and the driving pulley is transmission-connected to the two driven pulleys through a closed transmission belt; a driven gear is fixedly provided at the end of the wheel shaft of the driven pulley, and a hollow annular rotating gear is provided above the driven gear, and the rotating gear is rotatably arranged in the main frame through a guide bearing, and a notch is provided on the top of the main frame; a radial through groove is provided on the rotating gear, and the outer side of the rotating gear is always meshed with at least one of the driven gears, and the connecting pipe fastener is fixedly provided on the inner side of the rotating gear.

4. The automatic wire joint tube threading machine according to claim 3 is characterized in that: The main frame includes a base, which is fixed on the main frame, a rectangular frame with a hollow interior is provided on the upper part of the base, and arc frames with a hollow interior and penetrating the rectangular frame are provided on both sides of the top of the rectangular frame, and the gap is formed between the two symmetrical arc frames; the two sides of the rotating gear are rotatably connected to the inner side wall of the arc frame through guide bearings; the driving pulley, the driven pulley and the driven gear are all located in the rectangular frame.

5. The automatic wire joint tube threading machine according to claim 2, characterized in that: The lead screw assembly comprises a horizontally arranged lead screw, a lead screw nut is provided on the lead screw, the lead screw nut is fixedly connected to the moving frame, and the lead screw is transmission-connected to a driving device.

6. The automatic wire joint tube threading machine according to claim 5, characterized in that: The driving device includes an electric control box, which has a built-in tube-threading motor. The output shaft of the tube-threading motor is connected to the lead screw transmission through a gear reduction box. The electric control box is provided with a power supply and a controller connected to the tube-threading motor. The controller is provided with a control knob, which can control the speed and rotation direction of the rotating motor and the tube-threading motor.

7. The automatic wire joint tube threading machine according to claim 5, characterized in that: A rotating hand wheel is fixedly provided at one end of the lead screw.

8. The automatic wire joint tube threading machine according to claim 2, characterized in that: The connecting tube fastener comprises an upper connecting tube fastener and a lower connecting tube fastener with a semicircular cross-section. The lower connecting tube fastener is fixedly arranged on the inner bottom of the rotating gear. One end of the upper connecting tube fastener is hinged to the lower connecting tube fastener, and the other end can be locked and connected with the lower connecting tube fastener. A connecting tube gasket is provided on the inner side of the connecting tube fastener, and the connecting tube gasket comprises an aluminum connecting tube gasket and a steel connecting tube gasket.

9. The automatic wire joint tube threading machine according to claim 1, characterized in that: The wire fastener comprises an upper wire fastener and a lower wire fastener with a semicircular cross-section. The lower wire fastener is fixedly arranged on the top of the movable frame. One end of the upper wire fastener is hinged to the lower wire fastener, and the other end can be locked and connected with the lower wire fastener. A wire pad is arranged on the inner side of the wire fastener.

10. A working method of an automatic wire joint tube threading machine, characterized in that: The steps include: Step 1: first load the aluminum connecting tube pad into the connecting tube fastener, and clamp the aluminum connecting tube in the center on the aluminum connecting tube pad in the connecting tube fastener; then clamp the left-side wire located on the left side of the connecting tube fastener and whose end face has been cut and stripped on the wire pad in the wire fastener, and the lead screw assembly drives the moving frame to bring the left-side wire close to the aluminum connecting tube to perform the pipe threading action, and at the same time, the rotating motor drives the connecting tube fastener to rotate through the rotating mechanism assembly, simulating the action of twisting the aluminum connecting tube during manual pipe threading to assist the pipe threading operation; after the moving frame moves to the right to a position close to the connecting tube fastener, a threading is completed, the wire fastener is opened, the moving frame is driven to the left and the left-side wire is re-fastened for a second threading, until the end of the left-side wire passes through the set length from the right side of the aluminum connecting tube, and the aluminum connecting tube is installed in place; Step 2: clamp the connected left-side conductor and aluminum connecting tube on the left-side conductor fastener, then replace the aluminum connecting tube liner in the connecting tube fastener with a steel connecting tube liner, and then clamp the steel connecting tube in the center on the steel connecting tube liner in the connecting tube fastener; then insert the steel core of the right-side conductor located on the right side of the connecting tube and whose end face has been cut and stripped into the steel connecting tube, and fix the right-side conductor at the same time; the lead screw assembly drives the moving frame to carry the left-side conductor to perform the pipe threading action, and at the same time, the rotating motor drives the connecting tube fastener to rotate through the rotating mechanism assembly, simulating the action of twisting the steel connecting tube during manual pipe threading, and assisting the pipe threading operation, until the steel core of the left-side conductor is inserted into the steel connecting tube and contacts with the steel core of the right-side conductor. After the pipe threading is completed, the steel connecting tube is crimped; Step three, replace the steel connecting tube liner in the connecting tube fastener with an aluminum connecting tube liner. After the steel connecting tube is crimped, clamp the aluminum connecting tube on the left conductor into the connecting tube fastener. At this time, the steel connecting tube is located on the right side of the connecting tube fastener, and the conductor fastener clamps the left conductor; the screw assembly drives the moving frame to move with the left conductor away from the connecting tube fastener to perform the pipe threading action. At the same time, the rotating motor drives the connecting tube fastener to rotate through the rotating mechanism assembly, simulating the action of twisting the connecting tube during manual pipe threading, to assist the pipe threading operation. The steel connecting tube is inserted into the aluminum connecting tube from the right end until the two ends of the aluminum connecting tube are aligned with the markings of the left conductor and the right conductor respectively, completing the pipe threading operation, and then crimping the aluminum connecting tube.

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