Device for pressing square and melting protective layer of cable

Abstract

The utility model belongs to the technical field of welding, and particularly relates to a cable squaring and melting protective layer device, which comprises a cable squaring machine, and the cable squaring machine comprises a resistance press welder, and an upper welding die and a lower welding die which are arranged on the resistance press welder; the protective metal sheet conveying and cutting mechanism comprises a feeding mechanism, a shearing mechanism and a transferring mechanism, and the feeding mechanism comprises a supporting frame and a power assembly; the shearing mechanism comprises a supporting seat and a cutter, the supporting seat is used for supporting the protective metal sheet, and the cutter is connected with a power unit; the transferring mechanism comprises a lifting driving piece and a suction manipulator, the lifting driving piece is arranged on one side of the lower welding die, and the suction manipulator is connected with the lifting driving piece and used for sucking the protective metal sheets on the supporting base and transferring the protective metal sheets to the cable end of the lower welding die. And the welding upper die descends, and the protective metal sheet is molten on the surface of the squared copper wire. A protection layer is formed on the surface of the copper wire, and the problem of copper surface oxidation is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding, and particularly relates to a cable square pressing and melting protective layer device. Background Art

[0002] Cables are commonly used in power transmission. Cables are generally divided into various structures. The most commonly used one is to wrap multiple copper wires in an insulating sheath. In order to facilitate subsequent connection or welding of the cable, the cable ends are usually pressed into a square structure.

[0003] For example, the Chinese patent document with publication number CN110785894A discloses a wire connection structure, and its scheme discloses the use of ultrasound to weld the copper wires at the ends of the cable into a square integral structure. Since the metal is welded by ultrasound, the power consumption requirements of the ultrasonic mold and the ultrasound are very high. And because there are gaps between the cable conductors, the energy of the ultrasonic welding head will be absorbed, resulting in the need to increase the power required by the welding head, which is easy to exceed the rated power of the ultrasound, causing the problem of damaging the ultrasound. Therefore, the use of ultrasonic welding has strict technical requirements and high production costs.

[0004] At present, in the industry, the cable ends are mostly pressed into a square structure by resistance welding. For example, the Chinese patent document with publication number CN111112814A discloses a resistance welding device for electric wires, including a base, a support is provided at the upper end of the base, a lower fixed seat is provided at the upper end of the base, a lower electrode is fixed at the upper end of the lower fixed seat, a groove is provided at the upper end of the lower electrode, a linear drive device is provided at the top of the support, an upper fixed seat is provided at the output end of the linear drive device, an upper electrode is fixed at the lower end of the upper fixed seat, a pressing block aligned with the groove is provided at the lower end of the upper electrode, a support plate is also provided at the upper end of the support plate, a water tank is provided at the upper end of the support plate, a water outlet pipe connected to the water tank is provided at the bottom of the water tank, an electromagnetic valve is provided on the water outlet pipe, a water spray pipe is connected at the bottom of the water outlet pipe, and the lower end of the water spray pipe points to the groove. The end of the electric wire is pressed into a square by the pressing block and the groove, and cooling water is sprayed to the end of the electric wire through the water spray pipe, so that the end of the electric wire is quickly cooled, the rubber sheath at the end of the electric wire is prevented from being burned, and the qualified rate of the electric wire pressed square product is improved.

[0005] In the above patent document, resistance welding is used to achieve the squareness of the cable end; resistance welding uses the heating method of electric current to rapidly increase the temperature of the copper wire at the cable end and melt it into a whole to achieve the squareness effect. Since the copper wire reacts with oxygen in the air at high temperature, an oxide layer is formed on the copper surface. Utility Model Content

[0006] The utility model aims to provide a cable square pressing and protective layer melting device, so as to solve the problem in the prior art that an oxide layer is formed on the surface after the cable end is squared by resistance welding.

[0007] To achieve the above-mentioned purpose, an embodiment of the utility model provides a cable square pressing and melting protective layer device, including a cable square pressing machine, the cable square pressing machine including a resistance pressure welding machine and a welding upper die and a welding lower die arranged on the resistance pressure welding machine; also including a protective metal sheet conveying and cutting mechanism, which is arranged on one side of the resistance pressure welding machine; the protective metal sheet conveying and cutting mechanism includes a feeding mechanism, a shearing mechanism and a transfer mechanism, the feeding mechanism is used to continuously convey the protective metal sheet, the feeding mechanism includes a support frame and a power assembly, the power assembly is arranged on the support frame, and the power assembly is used to pull the protective metal sheet for conveying; the shearing mechanism is used to cut off the protective metal sheet output by the feeding mechanism, the shearing mechanism includes a support seat and a cutter, the support seat is used to support the protective metal sheet, the cutter is connected to a power unit, and is used to cut off the protective metal sheet output by the feeding mechanism; the transfer mechanism includes a lifting drive and a suction manipulator, the lifting drive is arranged on one side of the welding lower die, the suction manipulator is connected to the lifting drive, and the suction manipulator is used to suck the protective metal sheet on the support seat and transfer it to the cable end of the welding lower die.

[0008] Furthermore, a punching groove is provided on the support seat, and the cutter is provided above the punching groove, and is used to cooperate with the punching groove to cut off the protective metal sheet, so that the cut protective metal sheet is supported on the support seat.

[0009] Furthermore, the power assembly includes a lower slide, an upper slide, a pressure block, a lifting assembly and a translational drive member; the upper slide and the lower slide are slidably connected to the support frame in an up-and-down arrangement, and a connecting member is connected between the upper slide and the lower slide; the lifting assembly is arranged on the bottom side of the upper slide or on the lower slide, the pressure block is arranged on the lifting assembly, and the translational drive member is connected to the upper slide or the lower slide.

[0010] Furthermore, the translation drive component is arranged on the pneumatic slide on the support frame, and the upper slide is connected to the pneumatic slide; the lifting component is arranged on the cylinder at the bottom end of the upper slide, and the pressure block is arranged at the bottom end of the cylinder; the connecting member is arranged between the lower slide and the pressure block, and the connecting member and the lower slide can be slidably connected up and down.

[0011] Furthermore, the support frame is also provided with a winding drum, and the protective metal sheet is wound on the winding drum; the winding drum is connected to a motor.

[0012] Furthermore, the support frame is also provided with a tensioning mechanism for tensioning the protective metal sheet.

[0013] Furthermore, a guide seat is provided at one end of the support frame closer to the support seat, a guide groove is provided in the guide seat, and a clamping cylinder extending into the guide groove is provided on the bottom side of the guide seat.

[0014] Furthermore, the feeding mechanism also includes a translation adjustment mechanism, and the support frame is arranged on the translation adjustment mechanism; the translation adjustment mechanism is used to adjust the support frame.

[0015] Furthermore, the transfer mechanism also includes a rotating driving member, one end of which is connected to the suction robot, and the other end of which is arranged on the lifting driving member.

[0016] Furthermore, the rotary drive member is a rotary cylinder arranged on the lifting drive member; and the lifting drive member is a lifting cylinder arranged on one side of the welding lower mold.

[0017] The above one or more technical solutions in the cable pressing and melting protective layer device provided by the embodiment of the utility model have at least the following technical effects:

[0018] After the copper wire at the end of the cable is welded into a square structure by the welding upper die and the welding lower die, the welding upper die rises, and the transfer mechanism in the protective metal sheet conveying and cutting mechanism transfers the protective metal sheet cut by the shearing mechanism to the copper wire after the square is pressed, and then the welding upper die descends and melts the protective metal sheet on the surface of the copper wire. Therefore, a protective layer is formed on the surface of the copper wire after the square is pressed. The metal protective layer blocks the contact between copper and air, and prevents the formation of an oxide layer on the copper surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art 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 labor.

[0020] Figure 1 A three-dimensional diagram of a cable pressing and fusing protective layer device provided in an embodiment of the utility model.

[0021] Figure 2 A three-dimensional diagram of the protective metal sheet conveying and cutting mechanism of the cable square pressing and melting protective layer device provided in an embodiment of the utility model.

[0022] Figure 3 A three-dimensional diagram of the feeding mechanism of the cable square pressing and protective layer melting device provided in an embodiment of the utility model.

[0023] Figure 4A three-dimensional diagram of a guide seat of a cable pressing and melting protective layer device provided in an embodiment of the utility model.

[0024] Figure 5 A three-dimensional diagram of the shearing mechanism of the cable square pressing and melting protective layer device provided in an embodiment of the utility model.

[0025] Figure 6 A three-dimensional diagram of the transfer mechanism of the cable pressing and melting protective layer device provided in an embodiment of the utility model.

[0026] Figure 7 A three-dimensional diagram of the power assembly of the cable pressing and melting protective layer device provided in an embodiment of the utility model.

[0027] In the figure, 10, a protective metal sheet conveying and cutting mechanism, 100, a feeding mechanism, 110, a support frame, 111, a winding drum, 112, a motor, 113, a tensioning mechanism, 120, a power assembly, 121, a lower slide seat, 122, an upper slide seat, 123, a pressing block, 124, a lifting assembly, 125, a translation driving member, 126, a connecting member, 130, a guide seat, 131, a guide groove, 132, a pressing cylinder, 140, a translation adjusting mechanism;

[0028] 200, shearing mechanism, 210, support seat, 211, punching groove, 220, cutting knife, 230, power unit;

[0029] 300, transfer mechanism, 310, lifting drive member, 320, suction manipulator, 330, rotation drive member; 40, cable square press, 400, resistance welding machine, 410, welding upper die, 420, welding lower die. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0031] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0033] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0034] In one embodiment of the cable pressing and melting protective layer device of the utility model, please refer to Figure 1 to Figure 7 The cable square pressing and protective layer melting device can weld the copper wire at the end of the cable to form a square overall structure, and can weld a protective metal sheet on the surface of the square structure so that the protective metal sheet can be distributed on the copper surface after melting, thereby forming protection and avoiding the problem of copper being oxidized. The protective metal sheet can be a solder sheet or a tin sheet.

[0035] Specifically, the cable square pressing and protective layer melting device includes a cable square pressing machine 40 and a protective metal sheet conveying and cutting mechanism 10. The cable square pressing machine includes a resistance welding machine 400 and a welding upper die 410 and a welding lower die 420 arranged on the resistance welding machine 400. The cable with the end stripped is placed on the welding lower die 420, and the welding upper die descends, and with the cooperation of the welding lower die 420, the copper wire at the end of the cable is pressed into an integrated square structure.

[0036] The protective metal sheet conveying and cutting mechanism 10 is arranged on one side of the resistance pressure welding machine 400, and the protective metal sheet conveying and cutting mechanism 10 includes a feeding mechanism 100, a shearing mechanism 200 and a transfer mechanism 300. Among them, the feeding mechanism 100 includes a support frame 110 and a power assembly 120, and the power assembly 120 is arranged on the support frame 110, and the power assembly 120 is used to pull the protective metal sheet for conveying. The protective metal sheet can be continuously conveyed to the shearing mechanism 200, and the protective metal sheet is cut by the shearing mechanism 200. Specifically, the shearing mechanism 200 includes a support seat 210 and a cutter 220, and the support seat 210 is used to support the protective metal sheet, and the cutter 220 is connected to a power unit 230, which is used to cut the protective metal sheet output by the feeding mechanism 100. When the feeding mechanism 100 conveys the protective metal sheet to the support seat 210, the power unit 230 drives the cutter 220 to cut the protective metal sheet, and the cut protective metal sheet falls on the support seat 210. The cut protective metal sheet is then transferred to the copper wire after being squared by the transfer mechanism 300. Specifically, the transfer mechanism 300 includes a lifting drive member 310 and a suction robot 320. The lifting drive member 310 is disposed on one side of the welding lower mold 420. The suction robot 320 is connected to the lifting drive member 310. The suction robot 320 is used to suck the protective metal sheet on the support seat 210 and transfer it to the end of the cable copper wire of the welding lower mold 420. Preferably, the transfer mechanism 300 also includes a rotating drive member 330. One end of the rotating drive member 330 is connected to the suction robot 320, and the other end is disposed on the lifting drive member 310. For details, please refer to Figure 1 , the transfer mechanism 300 can be arranged between the shearing mechanism 200 and the resistance pressure welding machine 400, the lifting drive 310 drives the suction manipulator 320 to move down to suck the cut protective metal sheet, and then drives the suction manipulator 320 to move up, the rotating drive 330 rotates the suction manipulator 320 so that the cut protective metal sheet is located above the cable end, and the lifting drive 310 then drives the suction manipulator 320 to move down to place the cut protective metal sheet on the cable end of the welding lower mold, and then the transfer mechanism 300 is reset. More preferably, the rotating drive 330 is a rotating cylinder arranged on the lifting drive 310, and the lifting drive 310 is a lifting cylinder arranged on one side of the welding lower mold 420. Specifically, the cylinder drive is adopted, the structure is simple, easy to install and maintain, and the control program is simple and easy to operate.

[0037] In this embodiment, after the copper wire at the end of the cable is welded into a square structure by the welding upper die 410 and the welding lower die 420, the welding upper die 410 rises, and the transfer mechanism 300 in the protective metal sheet conveying and cutting mechanism transfers the protective metal sheet cut by the shearing mechanism 200 to the copper wire after the square pressing, and then the welding upper die 410 descends and melts the protective metal sheet on the surface of the copper wire. Therefore, a protective layer is formed on the surface of the copper wire after the square pressing. The protective layer blocks the copper from contacting with the air, avoiding the problem of copper surface oxidation.

[0038] For further information, please refer to Figure 5 The support seat 210 is provided with a punching groove 211, and the cutter 220 is arranged above the punching groove 211, and is used for the punching groove 211 to cooperate with the cutting of the protective metal sheet, so that the cut protective metal sheet is supported on the support seat 210. Specifically, the punching groove 211 enables the force of the cutter 220 to act completely on the protective metal sheet, thereby preventing the protective metal sheet from being incompletely cut, and reducing the direct contact between the cutter 220 and the support seat 210, thereby reducing the loss of the cutter 220. The power unit 230 is preferably a cylinder.

[0039] For further information, please refer to Figure 3 and Figure 7 The power assembly 120 includes a lower slide 121, an upper slide 122, a pressure block 123, a lifting assembly 124 and a translation driving member 125. The upper slide 122 and the lower slide 121 are slidably connected to the support frame 110 in an up-and-down arrangement, and a connecting member 126 is connected between the upper slide 122 and the lower slide 121. The lifting assembly 124 is arranged at the bottom side of the upper slide 122 or on the lower slide 121, the pressure block 123 is arranged on the lifting assembly 124, and the translation driving member 125 is connected to the upper slide 122 or the lower slide 121. Specifically, when the lifting assembly 124 of the power assembly 120 drives the pressure block 123 to move downward to the top of the lower slide 121 or upward to the bottom of the upper slide 122 to press the protective metal sheet, the protective metal sheet on the shearing mechanism support seat 210 is no longer transported, so that the cutter 220 can cut off the protective metal sheet. After the cutter 220 cuts off the protective metal sheet, the translation driving member 125 drives the upper slide 122 and the lower slide 121 to move through the connecting member 126 to continue conveying the compressed protective metal sheet toward the shearing mechanism 200 .

[0040] More specifically, the translation drive member 125 is provided on a pneumatic slide on the support frame 110, and the upper slide 122 is connected to the pneumatic slide. The lifting assembly 124 is a cylinder provided at the bottom end of the upper slide 122, and the pressure block 123 is provided at the bottom end of the cylinder. A connecting member 126 is provided between the lower slide 121 and the pressure block 123, and the connecting member 126 and the lower slide 121 can be slidably connected up and down. Specifically, the lifting assembly 124 drives the pressure block 123 and the upper slide 122 to move down along the direction of the connecting member 126 to the lower slide 121 to press the protective metal sheet, and the pneumatic slide enables the protective metal sheet to maintain stable linear motion.

[0041] For further information, please refer to Figure 3 The support frame 110 is also provided with a winding drum 111, on which the protective metal sheet is wound, and the winding drum 111 is connected to a motor 112. Specifically, the motor 112 drives the winding drum 111 to rotate, so that the protective metal sheet is transported toward the shearing mechanism 200.

[0042] For further information, please refer to Figure 3The support frame 110 is also provided with a tensioning mechanism 113 for tensioning the protective metal sheet. Specifically, the tensioning mechanism 113 can be a roller device. Since the tensioning mechanism of the roller structure belongs to a conventional mechanism in the field, it is not described in detail in this embodiment. For details, please refer to Figure 3 Under the tensioning action of the tensioning mechanism 113, the protective metal sheet maintains a certain tension during the conveying process, thereby ensuring that the protective metal sheet is conveyed smoothly.

[0043] For further information, please refer to Figure 3 and Figure 4 The end of the support frame 110 closer to the support seat 210 is further provided with a guide seat 130, a guide groove 131 is provided in the guide seat 130, and a pressing cylinder 132 extending into the guide groove 131 is further provided on the bottom side of the guide seat 130. Specifically, the guide seat 130 ensures the conveying direction of the protective metal sheet, the guide groove 131 can prevent the protective metal sheet from deviating during the conveying process, and the pressing cylinder 132 can press the protective metal sheet in the guide groove 131 to prevent it from continuing to be transported, so as to facilitate the shearing mechanism 200 to cut off the protective metal sheet. And the phenomenon of the protective metal sheet retreating can be avoided.

[0044] For further information, please refer to Figure 3 The feeding mechanism 100 further includes a translation adjustment mechanism 140, on which the support frame 110 is disposed, and the translation adjustment mechanism 140 is used to adjust the support frame 110. Specifically, the translation adjustment mechanism 140 can adjust one end of the support frame 110 close to the suction manipulator 320, so that the suction manipulator 320 can suck the cut protective metal sheet.

[0045] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cable square pressing and protective layer melting device, comprising a cable square pressing machine, the cable square pressing machine comprising a resistance welding machine and a welding upper die and a welding lower die arranged on the resistance welding machine; characterized in that: It also includes a protective metal sheet conveying and cutting mechanism, which is arranged on one side of the resistance pressure welding machine; the protective metal sheet conveying and cutting mechanism includes: A feeding mechanism, used for continuously conveying the protective metal sheet, the feeding mechanism comprising a support frame and a power assembly, the power assembly is arranged on the support frame, and the power assembly is used for pulling the protective metal sheet for conveying; a shearing mechanism, used for cutting off the protective metal sheet outputted by the feeding mechanism, the shearing mechanism comprising a support seat and a cutter, the support seat being used for supporting the protective metal sheet, the cutter being connected to a power unit and used for cutting off the protective metal sheet outputted by the feeding mechanism; and, The transfer mechanism includes a lifting drive and a suction robot. The lifting drive is arranged on one side of the welding lower mold. The suction robot is connected to the lifting drive. The suction robot is used to suck the protective metal sheet on the support seat and transfer it to the cable end of the welding lower mold.

2. The cable pressing and melting protective layer device according to claim 1 is characterized in that: The support seat is provided with a punching groove, and the cutter is arranged above the punching groove, and is used for the punching groove to cooperate with the cutting groove to cut off the protective metal sheet, so that the cut protective metal sheet is supported on the support seat.

3. The cable pressing and melting protective layer device according to claim 1 is characterized in that: The power assembly includes a lower slide, an upper slide, a pressure block, a lifting assembly and a translation drive member; the upper slide and the lower slide are slidably connected to the support frame in an up-and-down arrangement, and a connecting member is connected between the upper slide and the lower slide; the lifting assembly is arranged on the bottom side of the upper slide or on the lower slide, the pressure block is arranged on the lifting assembly, and the translation drive member is connected to the upper slide or the lower slide.

4. The cable pressing and melting protective layer device according to claim 3 is characterized in that: The translation driving member is arranged on the pneumatic slide on the support frame, and the upper slide is connected to the pneumatic slide; the lifting assembly is arranged on the cylinder at the bottom end of the upper slide, and the pressure block is arranged at the bottom end of the cylinder; the connecting member is arranged between the lower slide and the pressure block, and the connecting member and the lower slide can be slidably connected up and down.

5. The cable pressing and melting protective layer device according to claim 1 is characterized in that: The support frame is also provided with a winding drum, and the protective metal sheet is wound on the winding drum; the winding drum is connected to a motor.

6. The cable pressing and melting protective layer device according to claim 5 is characterized in that: The support frame is also provided with a tensioning mechanism for tensioning the protective metal sheet.

7. The cable pressing and melting protective layer device according to claim 6 is characterized in that: A guide seat is further provided at one end of the support frame closer to the support seat, a guide groove is provided in the guide seat, and a clamping cylinder extending into the guide groove is further provided on the bottom side of the guide seat.

8. The cable pressing and fusing protective layer device according to any one of claims 1 to 7, characterized in that: The feeding mechanism also includes a translation adjustment mechanism, and the support frame is arranged on the translation adjustment mechanism; the translation adjustment mechanism is used to adjust the support frame.

9. The cable pressing and fusing protective layer device according to any one of claims 1 to 7, characterized in that: The transfer mechanism further comprises a rotating driving member, one end of which is connected to the suction robot, and the other end of which is arranged on the lifting driving member.

10. The cable pressing and fusing protective layer device according to claim 9, characterized in that: The rotary drive member is a rotary cylinder arranged on the lifting drive member; the lifting drive member is a lifting cylinder arranged on one side of the welding lower mold.

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