CN219581884U - Electric door locking end welding machine for electric vehicle - Google Patents

Abstract

The utility model discloses an electric vehicle electric door lock end-locking welding machine, which relates to the field of automobile accessory production equipment and comprises a rack, wherein a terminal feeding device, a terminal transferring device, a positioning device, a cable processing device, a welding device and a discharging device are arranged on the rack, the terminal transferring device comprises a clamping mechanism for clamping and transferring a terminal from the terminal feeding device to the positioning device and a photographing mechanism for photographing and identifying the terminal at an outlet of the terminal feeding device, the positioning device comprises a conveying mechanism and a clamp mechanism arranged on the conveying mechanism, and the clamp mechanism comprises a mounting seat assembly for mounting the terminal and a clamping hand assembly for mounting the cable. The utility model has the advantages of high automation degree, high production effect and high product qualification rate.

Description

Electric door locking end welding machine for electric vehicle

Technical Field

The utility model relates to the field of automobile accessory part production equipment, in particular to an electric car electric door locking end welding machine.

Background

There is the terminal in the electric motor car lock, and the tin soldering has a plurality of cables on the terminal, and the terminal has the difference of positive and negative, and current end welding machine of beating is normally all placed the front of terminal on anchor clamps manually, then aligns the position to be welded through the manual work with the cable, and welding set welds the back, and the manual work is accomplished and is got the material, and this kind of mode has restricted production efficiency greatly, and the cost is very big moreover.

Disclosure of Invention

In order to overcome the defects of the background technology, the utility model provides the electric vehicle electric door lock end-beating welding machine which is high in automation degree, production effect and product qualification rate.

The utility model adopts the technical scheme that: the utility model provides an electric motor car electric door lock beats end welding machine, its includes the frame, establish by terminal feed arrangement, terminal transfer device, positioner, cable processing apparatus, welding set and discharging device in the frame, terminal transfer device is including carrying out the fixture on the positioner and taking a photograph discernment to the terminal of terminal feed arrangement exit with the terminal centre gripping in from terminal feed arrangement, positioner includes conveying mechanism and sets up the fixture on conveying mechanism, fixture includes the mount pad subassembly that supplies the terminal to install and supplies the centre gripping hand subassembly of cable installation, the centre gripping hand subassembly has the first action of centre gripping cable that holds the cable that comes from cable processing apparatus transportation, with the second action of cable alignment terminal and loosen the cable and make its third action of being pressed from both sides away by discharging device after the welding is accomplished to the mount pad subassembly.

The conveying mechanism comprises a conveying belt which is circularly arranged and is fixedly installed by the clamp mechanism, a mounting seat positioned in the middle of the conveying belt is arranged on the rack, and a terminal receiving station, a cable receiving station, a welding station corresponding to the welding device, a jacking station, a discharging station corresponding to the discharging device, a cleaning station and a detecting station are sequentially arranged on the route of the conveying belt.

The clamping mechanism comprises a clamping piece, a first driving assembly for driving the clamping piece to rotate, a second driving assembly for driving the clamping piece to move up and down, and a third driving assembly for driving the clamping piece to move in the horizontal direction;

the clamping mechanism further comprises a first support for mounting the first driving assembly, a second support for mounting the second driving assembly and a third support for mounting the third driving assembly, wherein the first support is slidably mounted on the second support and is connected with the output end of the second driving assembly, the second support is connected with the output end of the third driving assembly, and the third support is fixedly mounted on the frame.

The clamping mechanism further comprises a stripper plate which is installed on the first support in a sliding mode and a fourth driving assembly which drives the stripper plate to move up and down, the clamping piece is provided with a thimble which is provided with a notch in the circumferential direction and is tightly matched with the center hole of the terminal, and the stripper plate is provided with a through hole for the thimble to pass through.

The clamp mechanism further comprises a base for sliding installation of the installation seat assembly and rotation installation of the clamping hand assembly, the installation seat assembly comprises a sliding plate vertically sliding matched with the base and an installation plate installed at the upper end of the sliding plate, and an installation groove matched with the appearance of the terminal is formed in the installation plate;

the clamping hand assembly comprises a side wall plate hinged with the base, a transplanting clamp component slidingly arranged on the side wall plate and a pull rod for transmitting driving force to the transplanting clamp component, the pull rod is vertically arranged and penetrates through the base and is connected with the transplanting clamp component, a first elastic piece is sleeved on the pull rod, and two ends of the first elastic piece respectively abut against the base and the transplanting clamp component; the frame is provided with a first driving piece for pulling the pull rod at the cable receiving station and the blanking station.

The transplanting clamp part comprises a middle clamp block connected with the pull rod and clamps positioned at two sides of the middle clamp block, a first installation part extending towards two sides is arranged at the bottom end of the middle clamp block, a second installation part is arranged at one side of the clamps, a connecting rod for hinging the two is arranged between the first installation part and the second installation part, and the transplanting clamp part is provided with a first action of opening the clamps at two sides when the middle clamp block moves downwards and a second action of closing the clamps at two sides when the middle clamp block moves upwards;

the clamping hand assembly further comprises a cover plate which is matched with the side wall plate to wrap the transplanting clamp component, a limiting column is arranged on the cover plate, and a strip-shaped groove for the limiting column to pass through is formed in the middle clamp block.

The novel automatic feeding device is characterized in that a third elastic piece which is in contact with the bottom end of the sliding plate and the base is arranged between the bottom end of the sliding plate and the base, a first limiting plate corresponding to the sliding plate is arranged on the base, a first baffle is arranged at a material ejection station of the mounting seat, a first roller which is in rolling fit with the first baffle is arranged on the sliding plate, and the sliding plate is provided with a first action of downward movement after the first baffle is in contact with the first roller and a second action of upward resetting after the first roller passes over the first baffle.

A second limiting plate is arranged on the surface of one side of the base, facing the clamping hand assembly, and a second elastic piece for connecting the base and the clamping hand assembly is arranged between the base and the clamping hand assembly;

the welding device capable of lifting and moving and the wire protection fork capable of lifting and moving are arranged at the welding station of the mounting seat, a second baffle plate in rolling fit with the pull rod is arranged at the position of the corresponding welding station of the frame, a second roller is arranged at the end part of the pull rod, and the clamping hand assembly is provided with a first action of rotating around the base after the second baffle plate is contacted with the second roller and a second action of rotating back to the original position after the second roller passes over the second baffle plate.

The mounting seat is provided with a first detection device at the cable receiving station, the first detection device comprises a first supporting seat arranged on the mounting seat, a first sensor arranged on the first supporting seat and a detection rod hinged on the first supporting seat, the detection rod is provided with a first state that the other end of the detection rod is out of the detection range of the first sensor when one end of the detection rod does not touch a terminal in the mounting seat assembly, and a second state that the other end of the detection rod enters the detection range of the first sensor after one end of the detection rod touches a terminal in the clamp mechanism;

the installation seat is provided with a rolling brush piece which moves up and down at the cleaning station;

the mounting seat is provided with a second detection device which has the same structure as the first detection device at the detection station;

the conveying mechanism further comprises a circulating track which is in rolling fit with the clamp mechanism.

The cable processing device comprises a cutting mechanism, an end beating mechanism and a translation mechanism for transferring cables between the cutting mechanism and the end beating mechanism, wherein the translation mechanism comprises a translation bottom plate, a wire clamping assembly arranged on the translation bottom plate and a third driving piece which is connected with the translation bottom plate and drives the translation bottom plate to move towards the cutting mechanism, and a translation base for the installation of the third driving piece and a fourth driving piece for driving the translation base to transversely slide are arranged on the frame;

the cutting mechanism comprises an upper tool rest, a lower tool rest, a vertical plate for sliding installation of the upper tool rest and the lower tool rest, and a fifth driving piece for driving the upper tool rest and the lower tool rest to be opposite and separated;

and a wire pulling clamp, a peeling clamp and a transferring clamp for transferring the cable to the cable receiving station are further arranged on the frame.

The beneficial effects of the utility model are as follows: according to the technical scheme, the terminal is photographed through the photographing mechanism, the main control system recognizes the photo, then the clamping mechanism is controlled to extract the terminal and rotate by a proper angle and then put into the mounting seat assembly of the clamping mechanism, then the clamping mechanism sequentially connects the terminal and the cable through the welding device, and finally the finished product is clamped away by the discharging device.

Drawings

Fig. 1 is a schematic structural diagram of an electric vehicle door locking end welding machine according to an embodiment of the utility model.

Fig. 2 is a schematic structural view of the terminal feeding device and the terminal transferring device.

Fig. 3 is a schematic structural view of the clamping mechanism.

Fig. 4 is a schematic structural view of the positioning device, the welding device and the discharging device.

Fig. 5 is a schematic structural view of the cleaning station and the inspection station.

Fig. 6 is a schematic structural view of the conveying mechanism.

Fig. 7 is a schematic structural view of the clamp mechanism.

Fig. 8 is a schematic structural view of the grip hand assembly.

Fig. 9 is a schematic structural view of the mount assembly.

Fig. 10 is a schematic structural view of a welding station.

Fig. 11 is a schematic structural view of a liftout station.

Fig. 12 is a schematic structural view of the inspection station.

Fig. 13 is a schematic structural view of the cable processing device.

Fig. 14 is a schematic structural view of the translation mechanism.

Fig. 15 is a schematic structural view of the cutting mechanism.

Fig. 16 is a schematic structural view of a pull clip, a peeling clip, and a transfer clip.

Detailed Description

Embodiments of the utility model are further described below with reference to the accompanying drawings:

as shown in the figure, an electric car door lock end welding machine comprises a frame 1, wherein a terminal feeding device 2, a terminal transferring device 3, a positioning device 4, a cable processing device 5, a welding device 6 and a discharging device 7 are arranged on the frame 1, the terminal transferring device 3 comprises a clamping mechanism 31 for clamping and transferring a terminal from the terminal feeding device 2 to the positioning device 4 and a photographing mechanism 32 for photographing and identifying the terminal at the outlet of the terminal feeding device 2, the positioning device 4 comprises a conveying mechanism 41 and a clamping mechanism arranged on the conveying mechanism 41, the clamping mechanism comprises a mounting seat assembly 42 for mounting the terminal and a clamping hand assembly 43 for mounting the cable, and the clamping hand assembly 43 is provided with a first action for clamping the cable transported from the cable processing device 5, a second action for aligning the cable to the terminal when the mounting seat assembly 42 is positioned below the welding device 6 and a third action for loosening the cable to be clamped by the discharging device 7 after the welding is completed; according to the technical scheme, the terminal is photographed through the photographing mechanism, the main control system recognizes the photo, then the clamping mechanism is controlled to extract the terminal and rotate by a proper angle and then put into the mounting seat assembly of the clamping mechanism, then the clamping mechanism sequentially connects the terminal and the cable through the welding device, and finally the finished product is clamped away by the discharging device.

In addition, the principle of the photographing mechanism is that a terminal photo is obtained through photographing, and the terminal photo is compared with photos in a database, so that the clamping mechanism is controlled to rotate the terminal by a proper angle, and the rotated terminal just corresponds to a mounting groove on the mounting plate.

The conveying mechanism 41 comprises a conveying belt 411 which is circularly arranged and fixedly installed by the clamp mechanism, the rack 1 is provided with a mounting seat 11 positioned in the middle of the conveying belt 411, and a terminal receiving station, a cable receiving station, a welding station corresponding to the welding device 6, a jacking station, a discharging station corresponding to the discharging device 7, a cleaning station and a detection station are sequentially arranged on the route of the conveying belt 411; the conveyer belt adopts the chain, as shown in fig. 6, conveying mechanism 41 still includes and constitutes rolling fit's circulation track 47 with clamp mechanism, clamp mechanism rolls on the circulation track, guarantees clamp mechanism's steady operation and each clamp mechanism between installation accuracy, after clamp mechanism receives terminal and cable, makes the two be connected through welding set's welding, clamp mechanism's mount pad subassembly down motion makes the terminal be unsettled state when passing the liftout station, conveniently is got by discharging device clamp and takes away, later moves clamp mechanism and cleans remaining welding slag in the clean station, then detects whether there is the terminal that does not weld successfully to leave over in clamp mechanism through detecting the station, if there is, will be detected by second detecting device to shut down through main control system, clear up by the manual work.

The clamping mechanism 31 comprises a clamping piece 311, a first driving assembly 312 for driving the clamping piece 311 to rotate, a second driving assembly 313 for driving the clamping piece 311 to move up and down, and a third driving assembly 314 for driving the clamping piece 311 to move in the horizontal direction;

the clamping mechanism 31 further comprises a first bracket 315 for installing the first driving component 312, a second bracket 316 for installing the second driving component 313 and a third bracket 317 for installing the third driving component 314, the first bracket 315 is slidably installed on the second bracket 316 and is connected with the output end of the second driving component 313, the second bracket 316 is connected with the output end of the third driving component 314, the third bracket 317 is fixedly installed on the frame 1, the clamping piece in the clamping mechanism moves to the upper side of the clamping mechanism under the action of the third driving component, the main control system recognizes according to the photo obtained by the photographing mechanism, then controls the first driving component to rotate by a corresponding angle, so that the angle of the terminal on the clamping piece corresponds to the installation groove on the clamping mechanism, and then the second driving component controls the clamping piece to move downwards and be placed in the installation groove.

In this embodiment, the first driving component adopts a servo motor and a rotating shaft connected with the thimble; the second driving assembly adopts an air cylinder or an oil cylinder, and the third driving assembly adopts a servo motor and a ball screw pair.

The clamping mechanism 31 further comprises a stripper plate 318 slidably mounted on the first bracket 315 and a fourth driving assembly 319 for driving the stripper plate 318 to move up and down, the clamping member 311 is provided with a thimble which is provided with a notch in the circumferential direction and is tightly matched with the central hole of the terminal, the stripper plate 318 is provided with a through hole 3181 for the thimble to pass through, after the clamping member places the terminal in the mounting groove, the clamping member rises, the stripper plate can block the terminal in the mounting groove, thereby completing the discharging of the clamping mechanism, and the fourth driving assembly adopts a cylinder which can adjust the up-down position of the stripper plate.

The fixture mechanism further comprises a base 44 for sliding installation of the mounting seat assembly 42 and for rotating installation of the clamping hand assembly 43, the mounting seat assembly 42 comprises a slide plate 421 vertically sliding matched with the base 44 and a mounting plate 422 mounted at the upper end of the slide plate 421, and the mounting plate 422 is provided with a mounting groove 423 matched with the shape of the terminal; the third elastic piece 424 which is in contact with the bottom end of the sliding plate 421 and the base 44 is arranged between the bottom end of the sliding plate 421 and the base 44, the base 44 is provided with a first limiting plate 425 corresponding to the sliding plate 421, the mounting seat 11 is provided with a first baffle 13 at the material ejection station, the sliding plate 421 is provided with a first roller 426 in rolling fit with the first baffle 13, the sliding plate 421 is provided with a first action of downward movement after the first baffle 13 contacts with the first roller 426 and a second action of upward resetting after the first roller 426 passes over the first baffle 13, the third elastic piece adopts a spring, the mounting seat assembly is in a reversed trapezoid shape when passing through the material ejection station, the mounting plate slides downwards after the first roller contacts with the first baffle, the spring between the sliding plate and the base is compressed, and at the moment, the clamping hand assembly clamps a cable to suspend a terminal part so as to be conveniently clamped by the material ejection device, and the mounting plate resets upwards under the pre-tightening force of the spring after the first roller passes over the first baffle;

the third elastic piece has other functions, when the terminal is transported into the mounting groove by the clamping piece, the stripper plate can have downward acting force on the mounting plate, and the third elastic piece can play a role in buffering and prevent the terminal and the mounting plate from being hard to damage; in addition, the third elastic piece can eliminate the height error when the terminal is fed, and prevent the terminal from rotating so as to be mismatched with the angle of the mounting groove.

The clamping hand assembly 43 comprises a side wall plate 431 hinged with the base, a transplanting clamp part 432 slidably mounted on the side wall plate 431 and a pull rod 433 for transmitting driving force to the transplanting clamp part 432, the pull rod 433 is vertically arranged and penetrates through the base 44 and is connected with the transplanting clamp part 432, a first elastic piece 434 is sleeved on the pull rod 433, and two ends of the first elastic piece 434 respectively abut against the base 44 and the transplanting clamp part 432; the frame 1 is equipped with the first driving piece 12 that is used for pulling the pull rod 433 in cable receiving station department and unloading station department, first elastic component adopts the spring, cable receiving station department, the pull rod is driven by first driving piece and pulls down the back, transplants the clamp part and can open to both sides, can receive the cable from transporting the clamp this moment, and first driving piece cancellation pulls the back, and the pull rod upwards moves under the pretightning force effect of first elastic component, makes transplants clamp part clamp cable.

The transplanting clamp part 432 comprises a middle clamp block 4321 connected with a pull rod 433 and clamps 4322 positioned at two sides of the middle clamp block 4321, a first installation part 4323 extending towards two sides is arranged at the bottom end of the middle clamp block 4321, a second installation part 4324 is arranged at one side of the clamps 4322, a connecting rod 4325 for hinging the first installation part 4323 and the second installation part 4324 is arranged between the first installation part 4323 and the second installation part 4324, and the transplanting clamp part 432 is provided with a first action of opening the clamps 4322 at two sides when the middle clamp block 4321 moves downwards and a second action of closing the clamps 4322 at two sides when the middle clamp block 4321 moves upwards; the structure is a specific structure of the transplanting clamp component, as shown in fig. 8, the clamps on two sides are synchronously opened and closed, and the clamps on two sides can ensure the center distance of the two cables before welding.

The clamping hand assembly 43 further comprises a cover plate 4326 which is matched with the side wall plate 431 to wrap the transplanting clamp component 432, a limiting column 4327 is arranged on the cover plate 4326, a bar-shaped groove 4328 for the limiting column 4327 to pass through is formed in the middle clamp block 4321, the limiting column limits the up-and-down movement stroke of the middle clamp block, the stability of clamping action is guaranteed, in addition, in the installation process, the limiting column can assist in the installation of the clamping hand assembly, and the spring piece on the pull rod is prevented from excessively pushing the middle clamp block.

The mounting seat 11 is provided with a welding device 6 capable of lifting and lowering and a wire protection fork 14 capable of lifting and lowering, the frame 1 is provided with a second baffle 15 in rolling fit with a pull rod 433 at a position corresponding to the welding station, the end part of the pull rod 433 is provided with a second roller 435, and the clamping hand assembly 43 is provided with a first action of rotating around the base 44 after the second baffle 15 contacts with the second roller 435 and a second action of rotating back to the original position after the second roller 435 passes over the second baffle 15; when the clamp mechanism moves to the welding station, the second roller contacts with the second baffle, the second baffle is horizontally arranged and is trapezoidal as shown in fig. 10, the second baffle can enable the clamping hand assembly to rotate around the base for a proper angle, so that cables on the clamping hand assembly are inclined and then aligned with welding points on the terminals, then the wire protection fork moves downwards to press the cables on the terminals, and then welding is carried out;

a second limiting plate 45 is arranged on the surface of one side of the base 44 facing the clamping hand assembly 43, and a second elastic piece 46 for connecting the base 44 and the clamping hand assembly 43 is arranged between the base 44 and the clamping hand assembly 43; when the second roller passes over the second baffle, the clamping hand assembly is converted into a vertical state again under the action of the second elastic piece, the second limiting plate guarantees the rotation range of the clamping hand assembly, and the second elastic piece adopts a tension spring.

The mounting seat 11 is provided with a first detection device 16 at a cable receiving station, the first detection device 16 comprises a first supporting seat 161 mounted on the mounting seat 11, a first sensor 162 mounted on the first supporting seat 161 and a detection rod 163 hinged on the first supporting seat 161, the detection rod 163 has a first state that one end of the detection rod is out of the detection range of the first sensor 162 when the other end of the detection rod is not contacted with a terminal in the mounting seat assembly, and a second state that the other end of the detection rod is in the detection range of the first sensor 162 after one end of the detection rod is contacted with the terminal in the clamp mechanism; the mounting seat 11 is provided with a second detection device 18 which has the same structure as the first detection device 16 at a detection station; the working principle of the first detection device is the same as that of the second detection device, as shown in fig. 12, when the mounting seat assembly passes through the detection rod, the terminal in the mounting groove is contacted with the bottom end of the detection rod, the upper end of the detection rod swings at a bit angle, so that the detection range of the first sensor can be entered, in the embodiment, the first sensor adopts a photoelectric switch, and when the mounting groove does not contain the terminal, the upper end of the detection rod cannot enter the detection range of the first sensor, so that whether the terminal is remained in the mounting seat assembly or not and the condition that the terminal is not fed can be accurately distinguished through the first detection device and the second detection device.

The mounting seat 11 is provided with a rolling brush piece 17 which moves up and down at a cleaning station; after the welding is finished, welding slag is left in the mounting groove and can affect the feeding of the subsequent terminals, so that a cleaning station is required to be arranged behind the discharging station, a rolling brush piece is used for cleaning the mounting groove, a motor is used for driving the rolling brush head to rotate, and then the cylinder drives the rolling brush piece to move up and down.

The cable processing device 5 includes a cutting mechanism 51, an end-beating mechanism 52, and a translation mechanism 53 for transferring cables between the cutting mechanism 51 and the end-beating mechanism 52, the translation mechanism 53 includes a translation bottom plate 531, a wire clamping assembly 532 mounted on the translation bottom plate 531, and a third driving member 533 connected to the translation bottom plate 531 and driving the translation bottom plate 531 to move toward the cutting mechanism 51, and the frame 1 is provided with a translation base 534 for mounting the third driving member 533 and a fourth driving member 535 for driving the translation base to slide transversely;

the cutting mechanism 51 comprises an upper cutter frame 511, a lower cutter frame 512, a vertical plate 513 slidingly installed on the upper cutter frame and the lower cutter frame, and a fifth driving piece 514 for driving the upper cutter frame and the lower cutter frame to be opposite and separated; the third driving piece, the fourth driving piece and the fifth driving piece all adopt a servo motor and a ball screw pair; in addition, a discharger for removing the waste material is mounted on the lower tool holder 512, and the discharger adopts a pneumatic conveyor to remove the cut plastic waste material by a vacuumizing principle.

In addition, the mounting seat is provided with a smoke suction pipe at the position of the welding device, and the smoke suction pipe can suck the waste gas generated by welding.

The frame 1 is further provided with a wire pulling clamp 54, a peeling clamp 55 and a transferring clamp 56 for transferring the wire to the wire receiving station, as shown in fig. 13, 14, 15 and 16, the wire clamping assembly on the translation mechanism is used for fixing the wire, the wire is driven by the third driving piece to move towards the cutting mechanism, the wire is cut by the upper knife rest and the lower knife rest of the cutting mechanism, the number and the front and back sizes of the cutters on the upper knife rest and the lower knife rest can be adjusted according to actual requirements, the cut wire is driven by the translation mechanism to enter the wire beating mechanism for end beating, after the end beating is completed, the wire is translated back to the cutting mechanism, then the wire is clamped away by the wire pulling clamp, the wire pulling clamp peels the plastic at the rear end of the wire, and the transferring clamp is used for transferring the wire to the wire receiving station after the end peeling.

In the description of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

The skilled person will know: while the utility model has been described in terms of the foregoing embodiments, the inventive concepts are not limited to the utility model, and any modifications that use the inventive concepts are intended to be within the scope of the appended claims.

Claims (10)

1. The utility model provides an electric motor car electric door locking end welding machine, its characterized in that includes frame (1): the cable clamping device is characterized in that a terminal feeding device (2), a terminal transferring device (3), a positioning device (4), a cable processing device (5), a welding device (6) and a discharging device (7) are arranged on the rack (1), the terminal transferring device (3) comprises a photographing mechanism (32) for photographing and identifying a terminal at the outlet of the terminal feeding device (2) and a clamping mechanism (31) for clamping and transferring the terminal from the terminal feeding device (2) to the positioning device (4), the positioning device (4) comprises a conveying mechanism (41) and a clamping mechanism arranged on the conveying mechanism (41), the clamping mechanism comprises a mounting seat assembly (42) for mounting the terminal and a clamping hand assembly (43) for mounting the cable, and the clamping hand assembly (43) is provided with a first action for clamping the cable transported from the cable processing device (5), a second action for aligning the cable with the terminal when the mounting seat assembly (42) is positioned below the welding device (6) and a third action for clamping the cable by the discharging device (7) after welding is completed.

2. The electric vehicle door locking end welder of claim 1, wherein: conveying mechanism (41) are including circulation setting and supply anchor clamps mechanism fixed mounting's conveyer belt (411), be equipped with mount pad (11) in the middle of being located conveyer belt (411) on frame (1), be equipped with terminal material receiving station, cable material receiving station, correspond welding station, liftout station of welding set (6), correspond discharging device's (7) ejection of compact station, clean station and detection station on the route of conveyer belt (411) in proper order.

3. The electric vehicle door locking end welder of claim 1, wherein: the clamping mechanism (31) comprises a clamping piece (311), a first driving assembly (312) for driving the clamping piece (311) to rotate, a second driving assembly (313) for driving the clamping piece (311) to move up and down, and a third driving assembly (314) for driving the clamping piece (311) to move in the horizontal direction;

the clamping mechanism (31) further comprises a first support (315) for mounting the first driving assembly (312), a second support (316) for mounting the second driving assembly (313) and a third support (317) for mounting the third driving assembly (314), the first support (315) is slidably mounted on the second support (316) and is connected with the output end of the second driving assembly (313), the second support (316) is connected with the output end of the third driving assembly (314), and the third support (317) is fixedly mounted on the frame (1).

4. The electric vehicle door locking end welder of claim 3, wherein: the clamping mechanism (31) further comprises a stripper plate (318) which is slidably arranged on the first bracket (315) and a fourth driving assembly (319) which drives the stripper plate (318) to move up and down, the clamping piece (311) adopts a thimble which is provided with a notch in the circumferential direction and is tightly matched with a terminal center hole, and a through hole (3181) for the thimble to pass through is formed in the stripper plate (318).

5. The electric vehicle door locking end welder of claim 2, wherein: the clamp mechanism further comprises a base (44) for slidably mounting the mounting seat assembly (42) and rotatably mounting the clamping hand assembly (43), the mounting seat assembly (42) comprises a sliding plate (421) vertically slidably matched with the base (44) and a mounting plate (422) mounted at the upper end of the sliding plate (421), and a mounting groove (423) matched with the appearance of the terminal is formed in the mounting plate (422);

the clamping hand assembly (43) comprises a side wall plate (431) hinged with the base, a transplanting clamp component (432) slidably arranged on the side wall plate (431) and a pull rod (433) for transmitting driving force to the transplanting clamp component (432), the pull rod (433) is vertically arranged and penetrates through the base (44) and is connected with the transplanting clamp component (432), a first elastic piece (434) is sleeved on the pull rod (433), and two ends of the first elastic piece (434) respectively abut against the base (44) and the transplanting clamp component (432); the frame (1) is provided with a first driving piece (12) for pulling the pull rod (433) at the cable receiving station and the blanking station.

6. The electric vehicle door locking end welder of claim 5, wherein: the transplanting clamp part (432) comprises a middle clamp block (4321) connected with a pull rod (433) and clamps (4322) positioned at two sides of the middle clamp block (4321), a first installation part (4323) extending to two sides is arranged at the bottom end of the middle clamp block (4321), a second installation part (4324) is arranged at one side of the clamps (4322), a connecting rod (4325) for hinged connection of the first installation part (4323) and the second installation part (4324) is arranged between the first installation part and the second installation part, and the transplanting clamp part (432) is provided with a first action of opening the clamps (4322) at two sides when the middle clamp block (4321) moves downwards and a second action of closing the clamps (4322) at two sides when the middle clamp block (4321) moves upwards;

the clamping hand assembly (43) further comprises a cover plate (4326) which is matched with the side wall plate (431) to wrap the transplanting clamp part (432), a limiting column (4327) is arranged on the cover plate (4326), and a strip-shaped groove (4328) for the limiting column (4327) to penetrate is formed in the middle clamp block (4321).

7. The electric vehicle door locking end welder of claim 6, wherein: the novel automatic feeding device is characterized in that a third elastic piece (424) which is in contact with the bottom end of the sliding plate (421) and the base (44) is arranged between the bottom end of the sliding plate (421) and the base (44), a first limiting plate (425) corresponding to the sliding plate (421) is arranged on the base (44), a first baffle (13) is arranged at the ejection station of the mounting seat (11), a first roller (426) in rolling fit with the first baffle (13) is arranged on the sliding plate (421), and the sliding plate (421) is provided with a first action of downward movement after the first baffle (13) contacts with the first roller (426) and a second action of upward resetting after the first roller (426) passes over the first baffle (13).

8. The electric vehicle door locking end welder of claim 6, wherein: a second limiting plate (45) is arranged on the surface of one side of the base (44) facing the clamping hand assembly (43), and a second elastic piece (46) for connecting the base (44) and the clamping hand assembly (43) is arranged between the base and the clamping hand assembly;

the welding device comprises a mounting seat (11), a welding device (6) capable of lifting and lowering and a wire protection fork (14) capable of lifting and lowering, a second baffle (15) in rolling fit with a pull rod (433) is arranged at the position of the corresponding welding station of a frame (1), a second roller (435) is arranged at the end part of the pull rod (433), and a clamping hand assembly (43) is provided with a first action of rotating around a base (44) after the second baffle (15) is contacted with the second roller (435) and a second action of rotating back to the original position after the second roller (435) passes over the second baffle (15).

9. The electric vehicle door locking end welder of claim 2, wherein: the mounting seat (11) is provided with a first detection device (16) at the cable receiving station, the first detection device (16) comprises a first supporting seat (161) mounted on the mounting seat (11), a first sensor (162) mounted on the first supporting seat (161) and a detection rod (163) hinged on the first supporting seat (161), the detection rod (163) has a first state that one end of the detection rod is not contacted with a terminal in the mounting seat assembly (42) and the other end of the detection rod is out of the detection range of the first sensor (162), and a second state that the other end of the detection rod is in the detection range of the first sensor (162) after one end of the detection rod is contacted with the terminal in the clamp mechanism;

the installation seat (11) is provided with a rolling brush piece (17) which moves up and down at the cleaning station;

the mounting seat (11) is provided with a second detection device (18) with the same structure as the first detection device (16) at the detection station;

the conveying mechanism (41) further comprises a circulating track (47) which is in rolling fit with the clamp mechanism.

10. The electric vehicle door locking end welder of claim 2, wherein: the cable processing device (5) comprises a cutting mechanism (51), an end beating mechanism (52) and a translation mechanism (53) for transferring cables between the cutting mechanism (51) and the end beating mechanism (52), wherein the translation mechanism (53) comprises a translation bottom plate (531), a wire clamping assembly (532) arranged on the translation bottom plate (531) and a third driving piece (533) which is connected with the translation bottom plate (531) and drives the translation bottom plate (531) to move towards the cutting mechanism (51), and a translation base (534) for the installation of the third driving piece (533) and a fourth driving piece (535) for driving the translation base to transversely slide are arranged on the frame (1);

the cutting mechanism (51) comprises an upper cutter frame (511), a lower cutter frame (512), a vertical plate (513) for sliding installation of the upper cutter frame and the lower cutter frame, and a fifth driving piece (514) for driving the upper cutter frame and the lower cutter frame to be opposite and separated;

and a wire clamp (54), a peeling clamp (55) and a transferring clamp (56) for transferring the cable to a cable receiving station are further arranged on the frame (1).