Power transmission and distribution overhead line stay wire bending prefabricating device and using method

Abstract

The invention relates to a power transmission and distribution overhead line stay wire bending prefabricating device and a use method, the device comprises a bending rack and an auxiliary rack, the bending rack and the auxiliary rack are respectively composed of a workbench, adjusting support feet arranged at four corners of the bottom of the workbench, and a movable opening and closing door arranged on the side surface of the workbench; an inner groove is formed in the side face of a workbench of the bending machine frame, a top plate is arranged at the top of the bending machine frame, a switch is arranged in the inner groove, the bending machine frame comprises a pre-bending module arranged above the top plate, a pre-bending mold is arranged below the pre-bending module, and bending forming modules are symmetrically arranged on the two sides below the pre-bending mold. A limiting placing plate is arranged at the lower end of the bending forming module; a hanging locking module is arranged at one end of the top of the auxiliary rack, and a bearing groove base and a fractal positioning clamp module are sequentially arranged below the hanging locking module. The bending device has the advantages of being reasonable in structure, automatic, efficient and accurate in bending, improving the working efficiency and assisting in binding.

Description

Technical Field

[0001] The invention belongs to the technical field of power distribution line cable drawing, and in particular relates to a power transmission and distribution overhead line cable drawing bending prefabrication device and a use method thereof. Background Art

[0002] During the construction process, in order to balance the tower, it is necessary to use guy wires to balance the horizontal wind force on the tower and the tension of the conductor and lightning arrester. The guy wires of the overhead power line tower are usually composed of 7 parts: a guy wire drum, a guy wire U-shaped hanging ring, a guy wire rod, a UT-type wire clamp, a steel strand, a wedge-shaped wire clamp upper handle, and a guy wire clamp. The traditional method of making guy wire elbows is generally to manually make them at the construction site using auxiliary tools, and to bend them at an angle. There should be no loose strands at the bends. The method of manually bending the guy wire to make the guy wire elbow is difficult because the guy wire is hard. The operation is difficult, time-consuming, and labor-intensive, and the workload is large. On the other hand, it is generally difficult to achieve the bending effect of the cable elbow that meets actual use requirements by manual labor, resulting in poor use results and affecting the quality of the cable. Furthermore, when operators perform binding, most of them use one or two people to cooperate in the binding, and it is impossible to ensure a flat binding, resulting in misalignment of the binding, and it is difficult to ensure the quality of the binding. Therefore, it is very necessary to provide a power transmission and distribution overhead line cable bending prefabricated device and a method of use that has a reasonable structure, automatic, efficient, and accurate bending, improves work efficiency, and assists in binding. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and to provide a power transmission and distribution overhead line wire bending prefabrication device and a method of use which has a reasonable structure, automatic, efficient and accurate bending, improved work efficiency and auxiliary binding.

[0004] The objective of the present invention is achieved as follows: a power transmission and distribution overhead line wire bending prefabrication device and a method of use, comprising a bending frame and an auxiliary frame, wherein the bending frame and the auxiliary frame are both composed of a workbench, adjustable support feet arranged at the four corners of the bottom of the workbench, and a movable opening and closing door arranged at the side of the workbench; an inner groove is provided on the side of the workbench of the bending frame, a top plate is provided on the top, a switch is provided inside the inner groove, the bending frame comprises a pre-bending module arranged above the top plate, a pre-bending mold is provided below the pre-bending module, bending forming modules are symmetrically provided on both sides below the pre-bending mold, and a limiting placement plate is provided at the lower end of the bending forming module; a hanging locking module is provided at one end of the top of the auxiliary frame, and a receiving slot seat and a fractal positioning fixture module are provided in sequence below the hanging locking module.

[0005] The pre-bending module includes a bottom plate installed on the top plate, longitudinal guide rails are arranged on both sides of the front of the bottom plate, a pre-bending upper mold which cooperates with the pre-bending mold is slidably arranged inside the longitudinal guide rails, and a drawing wire to be processed is arranged between the pre-bending mold and the pre-bending upper mold; a push-down cylinder is arranged above the pre-bending upper mold, and the push-down cylinder is connected to the pre-bending upper mold through a connecting plate, an auxiliary cylinder is arranged on one side of the bottom plate, and a side push plate is arranged below the auxiliary cylinder.

[0006] The bending forming module comprises a fixed forming component and a lifting forming component. The lifting forming component is arranged on the right side of the bending forming module and is connected to the lifting adjustment component for realizing lifting adjustment.

[0007] The fixed forming assembly and the lifting forming assembly are both composed of a linear cylinder, a transverse guide rail, a forming push plate and a connector. The forming push plate is slidably arranged inside the transverse guide rail, and the outer ends of the forming push plates are connected to the linear cylinder through connectors.

[0008] The lifting and adjusting assembly includes a base, a vertical lifting arm and a lifting plate with an overall "T"-shaped structure. The lifting plate is connected to the lifting forming assembly. The base is connected to the lower end of the vertical lifting arm through a joint arm. The lower end of the vertical lifting arm is connected to the lower end of the lifting plate through a joint short arm. The upper end of the vertical lifting arm is connected to the middle of the lifting plate through a joint arm. The lower end of the joint arm is connected to the base through a joint long arm. The upper end of the base is provided with an execution driving arm with one end as a free end and the other end connected to the lower end of the joint arm.

[0009] The center lines of the hanging and locking module, the receiving groove seat and the fractal positioning fixture module are on the same horizontal line, and the hanging and locking module includes a limiting groove and a locking component.

[0010] The locking assembly includes an L-plate installed on a hanging locking module, a locking plate is arranged above one end of the L-plate, a locking hook is arranged on the left side of the locking plate, the locking hook is rotatably connected to the L-plate through an axle pin, a lever is arranged above the locking hook, a tension spring is connected to the end of the locking hook away from the lever, and one end of the tension spring is fixed on the pin column.

[0011] The fractal positioning fixture module includes a base with a groove in the middle, mounting brackets are arranged on the front and rear sides of the base, a crank handle is arranged at one end of the base, a fixed fixture and a movable fixture are arranged on both sides above the base, a sliding support located in the inner cavity of the base is arranged at the bottom of the movable fixture, and a screw rod which is transmission-connected to the crank handle is arranged inside the sliding support.

[0012] The fixed clamp and the movable clamp have the same structure and are symmetrically arranged about the base. The fixed clamp and the movable clamp both include a mounting plate, a large semicircular fractal clamp is arranged inside the mounting plate, a group of medium semicircular fractal clamps are separated inside the large semicircular fractal clamp, a group of small semicircular fractal clamps are separated inside the medium semicircular fractal clamp, and a group of finger clamps are separated inside the small semicircular fractal clamp.

[0013] A method for using a power transmission and distribution overhead line cable bending prefabrication device, using the power transmission and distribution overhead line cable bending prefabrication device as described above for prefabrication, the method comprising the following steps: Step 1: First operate the pre-bending module to keep it away from the pre-bending mold, and lower the lifting and forming component through the lifting and adjusting component; Step 2: Place the wire to be processed between the pre-bending module and the pre-bending die, then start the pre-bending module and the auxiliary cylinder, the pre-bending upper die and the pre-bending die cooperate to pre-bend the wire to be processed, and at the same time the auxiliary cylinder drives the side push plate to move downward, the side push plate pushes the wire to be processed to bend downward, and the side push plate assists in bending the wire to be processed, so as to pre-bend the wire to be processed; Step 3: Restore the pre-bending module and the auxiliary cylinder, take out the pre-bent wire to be processed, and place it on the limiting placement plate with the upper end to be bent located between the bending forming modules; Step 4: Use the lifting adjustment component to raise the lifting forming component, start the fixed forming component and the lifting forming component, drive the forming push plate to move inward through the linear cylinder, and use a group of forming push plates to form an inward extrusion effect on the wire to be processed until the wire to be processed can be bent into a required shape; Step 5: Restore the bending and forming module, make the forming push plate disengage from the wire to be processed, remove the wire to be processed and install the wire head; in the same way, bend the other end of the wire to be processed into the required shape and install the wire head; Step 6: Place the wire to be processed with the installed wire head in the receiving groove seat and the limit groove, and the wire head is self-locked through the locking component to keep the wire head in a vertical locking state; Step 7: After straightening the wire, operate the fractal positioning fixture so that the fixed fixture and the movable fixture can clamp the wire stably and reliably, keeping the upper and lower wires parallel to each other without misalignment, crossing or overlapping; Step 8: Manually tie the two pull wires together with wire at the disconnection point between the receiving slot and the hanging locking module.

[0014] The beneficial effects of the present invention are as follows: the present invention is a prefabricated bending device for overhead power transmission and distribution lines and a method for using the device. During use, the wire to be processed is placed between a pre-bending module and a pre-bending die, and then the pre-bending module and the auxiliary cylinder are started. The pre-bending upper die cooperates with the pre-bending die to perform a pre-bending operation on the wire to be processed, and at the same time, the side push plate assists in the bending work of the wire to be processed, so as to achieve pre-bending of the wire to be processed; the pre-bent wire to be processed is taken out, and a group of forming push plates are used to form an inward squeezing effect on the wire to be processed until the wire to be processed can be bent into a required shape; self-locking is performed by the locking component and the stable and reliable clamping of the fractal positioning fixture can facilitate the staff to tie the wire to ensure the quality of the wire head. The present invention does not require manpower to apply force to the wire, and only one person is needed to operate it. The whole process does not require excessive human intervention, which not only saves manpower and improves work efficiency, but also can provide long-term stable force output, thereby ensuring the bending quality of the wire; the present invention has the advantages of reasonable structure, automatic, efficient and accurate bending, improved work efficiency, and auxiliary binding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention.

[0016] Figure 2 It is a structural schematic diagram of the bending frame of the present invention.

[0017] Figure 3 For the present invention Figure 2 Schematic diagram of the structure of the middle part.

[0018] Figure 4 For the present invention Figure 3 Front view of .

[0019] Figure 5 It is a structural schematic diagram of the lifting and lowering adjustment component of the present invention.

[0020] Figure 6 It is a structural schematic diagram of the auxiliary frame of the present invention.

[0021] Figure 7 It is a schematic structural diagram of the locking assembly of the hanging locking module of the present invention.

[0022] Figure 8 It is a structural schematic diagram of the fractal positioning fixture module of the present invention.

[0023] In the figure: 1, bending frame 11, workbench 12, adjustable support foot 13, movable opening and closing door 14, inner groove 15, switch 16, top plate 2, auxiliary frame 3, to-be-processed wire 4, pre-bending module 41, bottom plate 42, longitudinal guide rail 43, pre-bending upper die 44, push-down cylinder 45, connecting plate 46, auxiliary cylinder 47, side push plate 5, pre-bending die 6, bending forming module 61, fixed forming assembly 62, lifting forming assembly 601, linear cylinder 602, transverse guide rail 603, forming push plate 604, connector 50, lifting and lowering adjustment assembly 51, base 52, vertical lifting arm 53, lifting plate 54, connecting plate Combined arm 55, combined short arm 56, articulated arm 57, combined long arm 58, execution drive arm 7, limiting placement plate 8, hanging locking module 81, limiting groove 82, locking assembly 21, L plate 22, locking plate 23, locking hook 24, axle pin 25, lever 26, tension spring 27, pin 9, receiving groove seat 10, fractal positioning fixture module 101, base 102, mounting bracket 103, crank handle 104, fixed fixture 401, mounting plate 402, large semicircular fractal clamp 403, middle semicircular fractal clamp 404, small semicircular fractal clamp 405, finger fixture 105, moving fixture 106, sliding support 107, screw rod. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings. Example

[0025] like Figure 1-8 As shown, a power transmission and distribution overhead line wire bending prefabrication device comprises a bending frame 1 and an auxiliary frame 2, wherein the bending frame 1 and the auxiliary frame 2 are both composed of a workbench 11, adjustable support feet 12 arranged at the four corners of the bottom of the workbench 11, and a movable opening and closing door 13 arranged on the side of the workbench 11; an inner groove 14 is opened on the side of the workbench 11 of the bending frame 1, and a top plate 16 is arranged on the top, and a switch 15 is arranged inside the inner groove 14; the bending frame 1 comprises a pre-bending module 4 arranged above the top plate 16, a pre-bending mold 5 is arranged below the pre-bending module 4, bending forming modules 6 are symmetrically arranged on both sides below the pre-bending mold 5, and a limiting placement plate 7 is arranged at the lower end of the bending forming module 6; a hanging locking module 8 is arranged at one end of the top of the auxiliary frame 2, and a receiving slot seat 9 and a fractal positioning fixture module 10 are arranged in sequence below the hanging locking module 8.

[0026] The pre-bending module 4 includes a bottom plate 41 installed on the top plate 16, and longitudinal guide rails 42 are arranged on both sides of the front of the bottom plate 41. A pre-bending upper mold 43 cooperating with the pre-bending mold 5 is slidably arranged inside the longitudinal guide rails 42, and a drawing wire 3 to be processed is arranged between the pre-bending mold 5 and the pre-bending upper mold 43; a push-down cylinder 44 is arranged above the pre-bending upper mold 43, and the push-down cylinder 44 is connected to the pre-bending upper mold 43 through a connecting plate 45; an auxiliary cylinder 46 is arranged on one side of the bottom plate 41, and a side push plate 47 is arranged below the auxiliary cylinder 46.

[0027] In this embodiment, the working principle of the pre-bending module is: first operate the pre-bending module to keep it away from the pre-bending mold, and use the lifting and adjusting assembly to lower the lifting and forming assembly to avoid interference with the bending work of the wire to be processed, and place the wire to be processed between the pre-bending module and the pre-bending mold, start the pre-bending module and the auxiliary cylinder, and the push-down cylinder drives the pre-bending upper mold to slide down along the longitudinal guide rail, and the pre-bending upper mold cooperates with the pre-bending mold to perform pre-bending operations on the wire to be processed. While the push-down cylinder is working, the auxiliary cylinder drives the side push plate to move downward, and the side push plate pushes the wire to be processed to bend downward, and the side push plate assists the bending work of the wire to be processed, so as to realize the pre-bending of the wire to be processed.

[0028] The bending forming module 6 includes a fixed forming component 61 and a lifting forming component 62. The lifting forming component 62 is arranged on the right side of the bending forming module 6 and is connected to the lifting adjustment component 50 for realizing lifting adjustment.

[0029] The fixed forming assembly 61 and the lifting forming assembly 62 are both composed of a linear cylinder 601, a transverse guide rail 602, a forming push plate 603 and a connector 604. The forming push plate 603 is slidably arranged inside the transverse guide rail 602, and the outer ends of the forming push plates 603 are connected to the linear cylinder 601 through connectors 604.

[0030] The lifting and adjusting assembly 50 includes a base 51, a vertical lifting arm 52 and a lifting plate 53 with an overall "T"-shaped structure. The lifting plate 53 is connected to the lifting forming assembly 62. The base 51 is connected to the lower end of the vertical lifting arm 52 through a joint arm 54. The lower end of the vertical lifting arm 52 is connected to the lower end of the lifting plate 53 through a joint short arm 55. The upper end of the vertical lifting arm 52 is connected to the middle of the lifting plate 53 through a joint arm 56. The lower end of the joint arm 56 is connected to the base 51 through a joint long arm 57. The upper end of the base 51 is provided with an execution driving arm 58 with one end as a free end and the other end connected to the lower end of the joint arm 56.

[0031] In this embodiment, the working principle of the bending forming module is as follows: after the wire to be processed is pre-bent, the wire to be processed is taken out and placed on a limiting placement plate with its upper end to be bent located between the bending forming modules, the lifting and lowering forming module is raised by the lifting and lowering adjustment assembly, the fixed forming assembly and the lifting and lowering forming assembly are started, and the forming push plate is driven by a linear cylinder to slide inward along the transverse guide rail, and a group of forming push plates are used to form an inward extrusion effect on the wire to be processed until the wire to be processed can be bent into a desired shape; the bending forming module is restored to disengage the forming push plate from contact with the wire to be processed, the wire to be processed is removed and the wire head is installed; the other end of the wire to be processed is also bent into a desired shape in the same manner, and the wire head is installed; The working principle of the lifting and adjusting assembly is as follows: when the free end of the execution driving arm is pressed downward, the execution driving arm rotates around the axis connected to the base, and drives one end connected to the joint arm to rise, thereby driving the lifting plate to rise through the joint arm, and when the joint arm moves upward, it will drive the combined long arm to move synchronously to improve stability. When the lifting plate moves upward, it will drive the lower end of the vertical lifting arm to move synchronously through the combined short arm, so that the upper and lower ends of the vertical lifting arm rise synchronously and stably, and the lower end of the combined short arm is connected to the base through the combined arm, further improving the stability of the movement, thereby driving the lifting plate to rise by pressing the free end of the execution driving arm downward, and then realizing the use of the lifting and lowering adjustment assembly to make the lifting forming assembly rise.

[0032] The center lines of the hanging and locking module 8 , the receiving groove seat 9 and the fractal positioning fixture module 10 are on the same horizontal line. The hanging and locking module 8 includes a limiting groove 81 and a locking component 82 .

[0033] The locking assembly 82 includes an L-plate 21 installed on the hanging locking module 8, a locking plate 22 is arranged above one end of the L-plate 21, a locking hook 23 is arranged on the left side of the locking plate 22, the locking hook 23 is rotatably connected to the L-plate 21 through an axle pin 24, a lever 25 is arranged above the locking hook 23, and a tension spring 26 is connected to the end of the locking hook 23 away from the lever 25, and one end of the tension spring 26 is fixed on the pin 27.

[0034] In this embodiment, the working principle of the hanging locking module is as follows: the wire to be processed with the installed wire pull head is placed in the receiving groove seat, and the wire pull head is self-locked through the locking assembly. First, the lock hook is pushed to one side by the lever to separate the lock hook and the lock plate by a certain distance. Then, the wire pull head is placed between the lock hook and the lock plate and the lever is released. Under the action of the tension spring, the lock hook is driven to rotate around the axis pin, so that the lock hook and the lock plate are self-locked, thereby realizing the locking operation of the wire pull head and keeping the wire pull head in an upright locked state.

[0035] The fractal positioning fixture module 10 includes a base 101 with a groove in the middle, and mounting brackets 102 are provided on the front and rear sides of the base 101. A crank handle 103 is provided at one end of the base 101, and a fixed fixture 104 and a movable fixture 105 are respectively provided on both sides above the base 101. A sliding support 106 located in the inner cavity of the base 101 is provided at the bottom of the movable fixture 105, and a screw rod 107 that is transmission-connected to the crank handle 103 is provided inside the sliding support 106.

[0036] The fixed clamp 104 and the movable clamp 105 have the same structure and are symmetrically arranged with respect to the base 101. The fixed clamp 104 and the movable clamp 105 both include a mounting plate 401, a large semicircular fractal clamp 402 is arranged inside the mounting plate 401, a group of medium semicircular fractal clamps 403 are separated inside the large semicircular fractal clamp 402, a group of small semicircular fractal clamps 404 are separated inside the medium semicircular fractal clamp 403, and a group of finger clamps 405 are separated inside the small semicircular fractal clamp 404.

[0037] In this embodiment, the working principle of the fractal positioning fixture module is as follows: after locking the wire head by the hanging locking module, the wire is straightened and placed in the receiving slot seat, and the fractal positioning fixture is operated by first operating the crank handle, which drives the sliding support to slide in the inner cavity of the base through the screw rod, and then drives the mobile fixture to approach the fixed fixture. The mobile fixture cooperates with the fixed fixture to clamp the wire stably and reliably, keeping the upper and lower wires parallel to each other without misalignment, crossing or overlapping; since the fixed fixture and the mobile fixture have the same structure and are both composed of a large It consists of a semicircular fractal clamp, a group of middle semicircular fractal clamps separated and arranged inside the large semicircular fractal clamp, a group of small semicircular fractal clamps separated and arranged inside the middle semicircular fractal clamp, and a group of finger clamps separated and arranged inside the small semicircular fractal clamp, so that reliable clamping can be achieved according to the shape of the pull wire, realizing the function of a universal adaptive clamp; since there is a disconnected structure between the receiving groove seat and the hanging locking module, the pull wire after straightening and clamping can be conveniently tied together with wire by manual binding at the disconnection point between the receiving groove seat and the hanging locking module.

[0038] The present invention is a prefabricated bending device for overhead power transmission and distribution lines and a method for using the same. In use, the wire 3 to be processed is placed between a pre-bending module 4 and a pre-bending die 5, and then the pre-bending module 4 and the auxiliary cylinder 46 are started, and the pre-bending upper die 43 cooperates with the pre-bending die 5 to perform a pre-bending operation on the wire 3 to be processed, and at the same time, the side push plate 47 assists in the bending of the wire 3 to be processed, so as to achieve pre-bending of the wire 3 to be processed; the pre-bent wire 3 to be processed is taken out, and a group of forming push plates 603 are used to form an inward squeezing effect on the wire 3 to be processed, until the wire 3 to be processed is bent. The wire 3 to be processed can be bent into a required shape; the self-locking through the locking component 82 and the stable and reliable clamping of the fractal positioning fixture 10 make it convenient for the staff to tie the wire to ensure the quality of the wire head. The present invention does not require manpower to apply force to the wire, and only one person is needed to operate it. The whole process does not require excessive human intervention, which not only saves manpower and improves work efficiency, but also can provide long-term stable force output, thereby ensuring the bending quality of the wire; the present invention has the advantages of reasonable structure, automatic, efficient and accurate bending, improved work efficiency, and auxiliary binding. Example

[0039] like Figure 1-8 As shown, a method for using a power transmission and distribution overhead line cable bending prefabrication device is used to prefabricate a power transmission and distribution overhead line cable bending prefabrication device as described above, and the method for using includes the following steps: Step 1: First operate the pre-bending module to keep it away from the pre-bending mold, and lower the lifting and forming component through the lifting and adjusting component; Step 2: Place the wire to be processed between the pre-bending module and the pre-bending die, then start the pre-bending module and the auxiliary cylinder, the pre-bending upper die and the pre-bending die cooperate to pre-bend the wire to be processed, and at the same time the auxiliary cylinder drives the side push plate to move downward, the side push plate pushes the wire to be processed to bend downward, and the side push plate assists in bending the wire to be processed, so as to pre-bend the wire to be processed; Step 3: Restore the pre-bending module and the auxiliary cylinder, take out the pre-bent wire to be processed, and place it on the limiting placement plate with the upper end to be bent located between the bending forming modules; Step 4: Use the lifting adjustment component to raise the lifting forming component, start the fixed forming component and the lifting forming component, drive the forming push plate to move inward through the linear cylinder, and use a group of forming push plates to form an inward extrusion effect on the wire to be processed until the wire to be processed can be bent into a required shape; Step 5: Restore the bending and forming module, make the forming push plate disengage from the wire to be processed, remove the wire to be processed and install the wire head; in the same way, bend the other end of the wire to be processed into the required shape and install the wire head; Step 6: Place the wire to be processed with the installed wire head in the receiving groove seat and the limit groove, and the wire head is self-locked through the locking component to keep the wire head in a vertical locking state; Step 7: After straightening the wire, operate the fractal positioning fixture so that the fixed fixture and the movable fixture can clamp the wire stably and reliably, keeping the upper and lower wires parallel to each other without misalignment, crossing or overlapping; Step 8: Manually tie the two pull wires together with wire at the disconnection point between the receiving slot and the hanging locking module.

[0040] The present invention is a prefabricated bending device for overhead power transmission and distribution lines and a method for using the same. In use, the wire 3 to be processed is placed between a pre-bending module 4 and a pre-bending die 5, and then the pre-bending module 4 and the auxiliary cylinder 46 are started, and the pre-bending upper die 43 cooperates with the pre-bending die 5 to perform a pre-bending operation on the wire 3 to be processed, and at the same time, the side push plate 47 assists in the bending of the wire 3 to be processed, so as to achieve pre-bending of the wire 3 to be processed; the pre-bent wire 3 to be processed is taken out, and a group of forming push plates 603 are used to form an inward squeezing effect on the wire 3 to be processed, until the wire 3 to be processed is bent. The wire 3 to be processed can be bent into a required shape; the self-locking through the locking component 82 and the stable and reliable clamping of the fractal positioning fixture 10 make it convenient for the staff to tie the wire to ensure the quality of the wire head. The present invention does not require manpower to apply force to the wire, and only one person is needed to operate it. The whole process does not require excessive human intervention, which not only saves manpower and improves work efficiency, but also can provide long-term stable force output, thereby ensuring the bending quality of the wire; the present invention has the advantages of reasonable structure, automatic, efficient and accurate bending, improved work efficiency, and auxiliary binding.

Claims

1. A prefabricated bending device for overhead power transmission and distribution lines, comprising a bending frame and an auxiliary frame, wherein the bending frame and the auxiliary frame are both composed of a workbench, adjustable support feet arranged at the four corners of the bottom of the workbench, and a movable opening and closing door arranged on the side of the workbench; an inner groove is provided on the side of the workbench of the bending frame, a top plate is provided on the top, and a switch is provided inside the inner groove, characterized in that: The bending frame includes a pre-bending module arranged above the top plate, a pre-bending mold arranged below the pre-bending module, bending forming modules symmetrically arranged on both sides below the pre-bending mold, and a limiting placement plate arranged at the lower end of the bending forming module; a hanging and locking module is arranged at one end of the top of the auxiliary frame, and a receiving groove seat and a fractal positioning fixture module are arranged in sequence below the hanging and locking module.

2. A power transmission and distribution overhead line wire bending prefabrication device as claimed in claim 1, characterized in that: The pre-bending module includes a bottom plate installed on the top plate, longitudinal guide rails are arranged on both sides of the front of the bottom plate, a pre-bending upper mold which cooperates with the pre-bending mold is slidably arranged inside the longitudinal guide rails, and a drawing wire to be processed is arranged between the pre-bending mold and the pre-bending upper mold; a push-down cylinder is arranged above the pre-bending upper mold, and the push-down cylinder is connected to the pre-bending upper mold through a connecting plate, an auxiliary cylinder is arranged on one side of the bottom plate, and a side push plate is arranged below the auxiliary cylinder.

3. A prefabricated bending device for overhead power transmission and distribution line as claimed in claim 2, characterized in that: The bending forming module comprises a fixed forming component and a lifting forming component. The lifting forming component is arranged on the right side of the bending forming module and is connected to the lifting adjustment component for realizing lifting adjustment.

4. A prefabricated bending device for overhead power transmission and distribution line wires according to claim 3, characterized in that: The fixed forming assembly and the lifting forming assembly are both composed of a linear cylinder, a transverse guide rail, a forming push plate and a connector. The forming push plate is slidably arranged inside the transverse guide rail, and the outer ends of the forming push plates are connected to the linear cylinder through connectors.

5. A prefabricated bending device for overhead power transmission and distribution line wires according to claim 4, characterized in that: The lifting and adjusting assembly includes a base, a vertical lifting arm and a lifting plate with an overall "T"-shaped structure. The lifting plate is connected to the lifting forming assembly. The base is connected to the lower end of the vertical lifting arm through a joint arm. The lower end of the vertical lifting arm is connected to the lower end of the lifting plate through a joint short arm. The upper end of the vertical lifting arm is connected to the middle of the lifting plate through a joint arm. The lower end of the joint arm is connected to the base through a joint long arm. The upper end of the base is provided with an execution driving arm with one end as a free end and the other end connected to the lower end of the joint arm.

6. A prefabricated bending device for overhead power transmission and distribution line wires according to claim 1, characterized in that: The center lines of the hanging and locking module, the receiving groove seat and the fractal positioning fixture module are on the same horizontal line, and the hanging and locking module includes a limiting groove and a locking component.

7. A prefabricated bending device for overhead power transmission and distribution line wires according to claim 6, characterized in that: The locking assembly includes an L-plate installed on a hanging locking module, a locking plate is arranged above one end of the L-plate, a locking hook is arranged on the left side of the locking plate, the locking hook is rotatably connected to the L-plate through an axle pin, a lever is arranged above the locking hook, a tension spring is connected to the end of the locking hook away from the lever, and one end of the tension spring is fixed on the pin column.

8. A prefabricated bending device for overhead power transmission and distribution line wires according to claim 7, characterized in that: The fractal positioning fixture module includes a base with a groove in the middle, mounting brackets are arranged on the front and rear sides of the base, a crank handle is arranged at one end of the base, a fixed fixture and a movable fixture are arranged on both sides above the base, a sliding support located in the inner cavity of the base is arranged at the bottom of the movable fixture, and a screw rod which is transmission-connected to the crank handle is arranged inside the sliding support.

9. A prefabricated bending device for overhead power transmission and distribution line wires according to claim 8, characterized in that: The fixed clamp and the movable clamp have the same structure and are symmetrically arranged about the base. The fixed clamp and the movable clamp both include a mounting plate, a large semicircular fractal clamp is arranged inside the mounting plate, a group of medium semicircular fractal clamps are separated inside the large semicircular fractal clamp, a group of small semicircular fractal clamps are separated inside the medium semicircular fractal clamp, and a group of finger clamps are separated inside the small semicircular fractal clamp.

10. A method for using a bending prefabrication device for overhead power transmission and distribution lines, using the bending prefabrication device for overhead power transmission and distribution lines as claimed in any one of claims 1 to 9 for prefabrication, characterized in that: The method of use comprises the following steps: Step 1: First operate the pre-bending module to keep it away from the pre-bending mold, and lower the lifting and forming component through the lifting and adjusting component; Step 2: Place the wire to be processed between the pre-bending module and the pre-bending die, then start the pre-bending module and the auxiliary cylinder, the pre-bending upper die and the pre-bending die cooperate to pre-bend the wire to be processed, and at the same time the auxiliary cylinder drives the side push plate to move downward, the side push plate pushes the wire to be processed to bend downward, and the side push plate assists in bending the wire to be processed, so as to pre-bend the wire to be processed; Step 3: Restore the pre-bending module and the auxiliary cylinder, take out the pre-bent wire to be processed, and place it on the limiting placement plate with the upper end to be bent located between the bending forming modules; Step 4: Use the lifting adjustment component to raise the lifting forming component, start the fixed forming component and the lifting forming component, drive the forming push plate to move inward through the linear cylinder, and use a group of forming push plates to form an inward extrusion effect on the wire to be processed until the wire to be processed can be bent into a required shape; Step 5: Restore the bending and forming module, make the forming push plate disengage from the wire to be processed, remove the wire to be processed and install the wire head; in the same way, bend the other end of the wire to be processed into the required shape and install the wire head; Step 6: Place the wire to be processed with the installed wire head in the receiving groove seat and the limit groove, and the wire head is self-locked through the locking component to keep the wire head in a vertical locking state; Step 7: After straightening the wire, operate the fractal positioning fixture so that the fixed fixture and the movable fixture can clamp the wire stably and reliably, keeping the upper and lower wires parallel to each other without misalignment, crossing or overlapping; Step 8: Manually tie the two pull wires together with wire at the disconnection point between the receiving slot and the hanging locking module.

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