CN112453771A

CN112453771A - Control panel and automatic wire harness welding method

Info

Publication number: CN112453771A
Application number: CN202011284169.6A
Authority: CN
Inventors: 石火开
Original assignee: Susong Xinqu Photoelectric Technology Co Ltd
Current assignee: Susong Xinqu Photoelectric Technology Co Ltd
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-03-09

Abstract

The invention particularly relates to an automatic welding method for a control plate and a wire harness, which comprises the following steps: s100, screening a single wire harness from a plurality of wire harnesses in a bundle through a wire harness screening device; s200, clamping the single wire harness screened by the wire harness screening device by the transfer device and transferring the single wire harness to the wire harness guide device; s300, the wire harness guiding device is used for guiding the conducting wires of the single wire harness to the hole positions to be welded of the control board and fixing the wire harness; s400, adjusting the posture of the control panel through the control panel screening device, and shooting an image of the control panel through a camera so as to identify the posture of the control panel; s500, the transfer device conveys the control panel to a control panel positioning device; s600, positioning and clamping the control panel by the control panel positioning device, and then conveying the control panel to a station to be welded; s700, welding the control panel and the wire harness together after the control panel and the wire harness are fixed; and S800, loosening the fixation of the wire harness by the wire harness guide device, and conveying the welded control plate to a material returning station and loosening the control plate by the control plate positioning device. The whole method is fully automatic, greatly improves the production speed of products and ensures the product quality.

Description

Control panel and automatic wire harness welding method

Technical Field

The invention relates to the technical field of automatic welding of electronic components, in particular to a control panel and an automatic welding method of a wire harness.

Background

A control panel for lamps is shown in figure 1, when the control panel is processed and used, a wire harness shown in figure 2 needs to be welded to two sides of the control panel, the size of the control panel is small, automatic welding of the control panel and the wire harness can be achieved without convenience or a similar automatic system, and at present, the control panel and the wire harness are basically operated manually. When manual welding, because the control panel size is less, so generally stick the control panel on the lug by operating personnel, reveal and wait to weld the hole site, then the manual work is arranged the wire in the pencil in waiting to weld the hole site in the plug-in, and the welding is carried out to reuse electric soldering pen, and this kind of scheme has a great deal of not enough: firstly, manual operation wastes time and labor, and the cost is high; secondly, because the control panel is pasted insecurely, perhaps the pencil drops easily in the welding, the welding failure rework phenomenon appears very easily in manual welding, greatly reduced production speed.

Disclosure of Invention

The invention aims to provide a control plate and a wire harness automatic welding method, which can realize the welding of the control plate and the wire harness in a full-automatic manner and are very reliable.

In order to realize the purpose, the invention adopts the technical scheme that: a control panel and wire harness automatic welding method comprises the following steps: s100, screening a single wire harness from a plurality of wire harnesses in a bundle through a wire harness screening device; s200, clamping the single wire harness screened by the wire harness screening device by the transfer device and transferring the single wire harness to the wire harness guide device; s300, the wire harness guiding device is used for guiding the conducting wires of the single wire harness to the hole positions to be welded of the control board and fixing the wire harness; s400, adjusting the posture of the control panel through the control panel screening device, and shooting an image of the control panel through a camera so as to identify the posture of the control panel; s500, the transfer device conveys the control panel to a control panel positioning device; s600, positioning and clamping the control panel by the control panel positioning device, and then conveying the control panel to a station to be welded; s700, welding the control panel and the wire harness together after the control panel and the wire harness are fixed; s800, loosening the fixation of the wire harness by the wire harness guide device, conveying the welded control panel to a material returning station by the control panel positioning device, and loosening the control panel; the steps S100-S300 are not in sequence with the steps S400-S600.

Compared with the prior art, the invention has the following technical effects: in the steps, the control panel is screened out and positioned through the control panel screening device and the control panel positioning device; the wire harness is positioned through the wire harness screening device and the guiding device, the positioned wire harness can be conveniently placed on a to-be-welded hole position of the positioned control panel, the wire harness is automatically welded through the automatic welding machine, the transferring device is mainly used for conveying the control panel or the wire harness among the devices, the whole method is fully automatic, the production speed of products is greatly improved, and the product quality is guaranteed.

Drawings

FIG. 1 is a schematic view of the construction of a control panel;

fig. 2 is a structural schematic diagram of a wire harness;

FIG. 3 is a schematic structural diagram of a conveyor type control panel screening device;

FIG. 4 is a schematic structural view of a feed back channel;

FIG. 5 is a schematic structural diagram of a rolling type control plate screening device;

FIG. 6 is a schematic view of the structure of FIG. 5 with the upper plate removed;

fig. 7 is a schematic structural view of the upper plate body;

FIG. 8 is a cross-sectional view of FIG. 5;

fig. 9 is a sectional view of the first clamping unit;

fig. 10 is a schematic structural view of a first clamping unit;

FIG. 11 is a schematic view of the control panel positioning device;

FIG. 12 is a schematic view of the structure of the second base plate;

FIG. 13 is a schematic contour view of a fixation plate;

FIG. 14 is an automatic feeding system consisting of a conveyor type control panel screening apparatus;

FIG. 15 is an automatic feeding system consisting of a rolling type control panel screening device;

fig. 16 is a schematic structural view of a harness screening apparatus;

FIG. 17 is a schematic view of the construction of the rotating plate;

fig. 18 is a structural schematic view of the wire harness drop unit;

FIG. 19 is a cross-sectional view of FIG. 18;

FIG. 20 is a schematic structural view of the first housing;

fig. 21 is a schematic structural view of a wire harness passage unit;

fig. 22 is a schematic view of a structure in which the wire harness passage unit does not include a cover plate;

FIG. 23 is a schematic structural view of a second housing;

FIG. 24 is a structural schematic view of a camshaft;

FIG. 25 is a schematic structural view of the partition unit and the fourth and fifth driving units;

FIG. 26 is a schematic view of the construction of the harness guide;

FIG. 27 is a schematic view showing the fitting state of the wire harness guide to the wire harness;

FIG. 28 is a schematic structural view of the base and the sixth driving unit;

FIG. 29 is a schematic view of the drive plate and lower guide block mating;

FIG. 30 is a schematic view of the transfer device configuration;

FIG. 31 is a schematic view of a horizontal power unit that does not include a second slide;

FIG. 32 is a schematic view of the mating of two second sliders;

FIG. 33 is a schematic diagram of a vertical power unit;

FIG. 34 is a schematic view showing a second clamping unit for clamping the control board;

FIG. 35 is a schematic view of the structure of the chuck base;

FIG. 36 is a schematic view of a chuck section of the third type of second clamping unit;

FIG. 37 is a schematic view of the control panel and the automatic wire harness welding system;

fig. 38 is a schematic structural view of the mount table.

Detailed Description

The present invention will be described in further detail with reference to fig. 3 to 38.

Referring to fig. 3, the invention discloses a conveying type control panel screening device, which comprises a material barrel 110, a first conveying unit 120, a second conveying unit 130, a camera 200 and a material returning channel 140, wherein the material barrel 110 is used for containing a control panel, the first conveying unit 120 is used for conveying the control panel in the material barrel 110 to the second conveying unit 130, a certain height difference exists between an outlet of the first conveying unit 120 and an inlet of the second conveying unit 130, the posture of the control panel is changed after the control panel falls off from the height difference, the camera 200 is used for collecting pictures of the control panel on the second conveying unit 130, the control panel with a downward surface is selected, and the rest control panels are conveyed back to the material barrel 110 through the material returning channel 140. Through setting up first conveying unit 120 and second conveying unit 130, and the discharge gate of first conveying unit 120 has a difference in height, the control panel will drop and take place to roll when carrying to second conveying unit 130 from first conveying unit 120 like this, there is certain probability control panel face laminating down in second conveying unit 130 after rolling, also can demonstrate other gesture, then after shooing the image on second conveying unit 130 through camera 200, to the control panel discernment and the location of facing down, then choose out can, the remainder can also continue to return and circulate once more in the storage bucket 110, the device simple structure, therefore, the clothes hanger is strong in practicability, the difference in height that drops is lower, can not damage the control panel, the component damage that brings when also having avoided adopting other vibrations modes to screen the control panel.

Referring to fig. 4, the structure of the material returning channel 140 is various, and in the present invention, preferably, the path of the material returning channel 140 in the length direction is "7" shaped, the transverse section of the "7" shaped material returning channel 140 is located at the outlet of the second conveying unit 130 for receiving the control board conveyed from the second conveying unit 130, and the tail end of the longitudinal section of the "7" shaped material returning channel 140 is fixed on the material barrel 110 and is communicated with the material barrel 110, so that the whole material returning channel 140 is in the site selection state; the height of the horizontal plane in which the left upper end of the '7' -shaped return channel 140 is located to the right lower end is gradually reduced, so that the control panel can conveniently flow back to the charging basket 110 from the return channel 140; the cross section of the feed back channel 140 along the length direction is U-shaped, so that a passage for the control board to flow through is formed, and the feed back channel 140 is provided with a vibration motor 141. Because the material returning channel 140 is in a suspended state, after the vibrating motor 141 is started, the whole material returning channel 140 can vibrate, and the height in the material returning channel 140 is gradually reduced, so that the control board can slide to the lower part to enter the charging basket 110, and the vibration amplitude is very small, and elements on the control board cannot be influenced.

Further, the first conveying unit 120 and the second conveying unit 130 are respectively composed of a support, rollers, a conveying belt and a motor, wherein the two rollers arranged in parallel are installed on the support, the conveying belt is tensioned between the two rollers, and an output shaft of the motor is fixedly connected with one of the rollers; the conveying belts of the first conveying unit 120 are obliquely arranged, the lower end of the conveying belt of the first conveying unit 120 is positioned in the charging basket 110, and the higher end of the conveying belt of the first conveying unit 120 extends to the upper part of the conveying belt of the second conveying unit 130, raised lines are uniformly arranged on the conveying belt of the first conveying unit 120 at intervals, and the length direction of the raised lines is perpendicular to the conveying direction of the first conveying unit 120; the conveyor belt of the second conveyor unit 130 is horizontally arranged and has a color different from that of the control panel. After the first conveying unit 120 is arranged, the raised lines on the conveying belt of the first conveying unit 120 can convey the control panel out of the charging basket 110 after the first conveying unit 120 is started, which is very convenient.

Referring to fig. 5-8, the invention further discloses a rolling type control panel screening device, which comprises an upper plate body 150, a lower plate body 160, a first driving unit 180 and a camera 200, wherein a plurality of first strip-shaped grid sheets 151 and second strip-shaped grid sheets 161 are respectively arranged on the upper plate body 150 and the lower plate body 160 at intervals, the first strip-shaped grid sheets 151 and the second strip-shaped grid sheets 161 are arranged at intervals in a staggered manner, and the first driving unit 180 drives the upper plate body 150 or the lower plate body 160 to move up and down and enables the upper plane of the first strip-shaped grid sheets 151 to be higher than, flush with or lower than the upper plane of the second strip-shaped grid sheets 161; the widths of the first strip-shaped grid piece 151 and the second strip-shaped grid piece 161 are larger than the width of the control board and smaller than the length of the control board; the camera 200 is used for collecting the pictures when the upper planes of the first strip-shaped grid sheet 151 and the second strip-shaped grid sheet 161 are flush, and the control panel with the downward surface is selected out. But through setting up the last plate body 150 and the lower plate body 160 of up-and-down motion, and set up interval staggered arrangement's first strip bars piece 151 and second strip bars piece 161 on last plate body 150 and the lower plate body 160 respectively, only need fix plate body 150 or lower plate body 160 like this, drive plate body 160 or last plate body 150 action down, can realize the height change between first strip bars piece 151 and the second strip bars piece 161, can promote the control panel of placing on it to overturn through the change of height, the gesture changes after the control panel upset, then select the control panel that the face is down can, remaining control panel can continue to carry out next upset and adjust the gesture. The device has reliable work, has little influence on the control panel, has very mild overturning process and can not damage the control panel.

Further, the upper plate body 150 includes a square frame-shaped body, the first strip-shaped grid pieces 151 are square pieces, a plurality of first strip-shaped grid pieces 151 are uniformly arranged at intervals on the inner side of the frame shape of the upper plate body 150, the length direction of the first strip-shaped grid pieces 151 is consistent with the width direction of the upper plate body 150, and the width of each first strip-shaped grid piece 151 is consistent with the gap distance between two adjacent first strip-shaped grid pieces 151; the lower plate body 160 is provided with second bar-shaped grid pieces 161 in the same manner. After the arrangement, the distances among the strip-shaped grid pieces are equal, so that the use is more convenient and reliable.

The first driving unit 180 has various structures, and in the present invention, it is preferable that the bottom surface of the upper plate 150 is provided with a first sliding rod 152 downward, the lower plate 160 is provided with a through hole for the first sliding rod 152 to pass through, and the lower plate 160 can move up and down along the first sliding rod 152, when the lower plate 160 moves up and down, the second bar-shaped grid 161 moves up and down along the gap between the first bar-shaped grids 151; the periphery of the upper plate body 150 extends downwards to form side plates and is closed through the first bottom plate 170, so that the device is more attractive and can be protected, the first driving unit 180 comprises a first pressure spring 181, a first motor 182 and a first cam 183, the first pressure spring 181 is sleeved on a first sliding rod 152 between the bottom surface of the upper plate body 150 and the top surface of the lower plate body 160, the first motor 182 is fixed on the first bottom plate 170, the shaft core of the first motor is consistent with the length direction of the upper plate body 150, a first bulge 162 is arranged below the lower plate body 160, the end part of the first bulge 162 is arc-shaped, and the first cam 183 on the output shaft of the first motor 182 is abutted to the first bulge 162. The outer circumference of the first cam 183 has three sizes with the center of rotation thereof, the largest size corresponding to the upward movement of the lower plate 160, the smallest size corresponding to the downward movement of the lower plate 160, and the middle size corresponding to the lower plate 160 being flush with the upper plate 150.

The invention also discloses a feeding system for automatic welding of the control panels, which comprises a control panel screening device 100, a transfer device 600 and a control panel positioning device 300, wherein the control panel screening device 100 is used for adjusting the postures of the control panels, the transfer device 600 is used for clamping the control panels which are placed right at right positions and conveying the control panels to the control panel positioning device 300, and the control panel positioning device 300 is used for positioning and clamping the control panels. Control panel sieving mechanism 100 screens out control panel face down earlier here, then transports it to control panel positioner 300 department through transfer device 600, and control panel positioner 300 fixes a position and presss from both sides tightly the control panel to transport it to the welding station on, control panel solder joint position after the location can be fixed down, just can use automatic welding machine to accomplish automatic weld this moment, guarantees follow-up automatic weld's realization, has avoided the many problems that manual welding brought.

Further, the control panel positioning device 300 includes a second base plate 310, a material conveying channel 320, a third conveying unit 330, a first clamping unit 340, a second driving unit 350 and a limiting unit 360, the control panel conveyed by the transfer device 600 enters the material conveying channel 320 arranged on the second base plate 310 to realize preliminary positioning, the third conveying unit 330 is used for driving the control panel in the material conveying channel 320 to move and position through the limiting unit 360, the first clamping unit 340 is used for clamping the control panel in the material conveying channel 320, and the second driving unit 350 is used for driving the first clamping unit 340 to move so as to convey the clamped control panel to the welding station.

Further, the second bottom plate 310 is provided with a square block 311, the square block 311 is provided with a material conveying channel 320, the material conveying channel 320 is divided into three sections along the width of the length direction, the width of the inlet position of the material conveying channel 320 is larger than the width of the control panel, the width of the outlet position of the material conveying channel 320 is matched with the width of the control panel, the width of the middle part of the material conveying channel 320 is gradually changed from large to small, the bottom of the material conveying channel 320 is provided with a groove penetrating through the square block 311, and the third conveying unit 330 is arranged in the groove. After the arrangement, only the third conveying unit 330 needs to be started, the third conveying unit 330 drives the control board to move along the material conveying channel 320, and the control board is gradually clamped and positioned due to the funnel-shaped structure of the material conveying channel 320. The structure of the material conveying channel 320 and the third conveying unit 330 with the structure can conveniently realize the positioning of the control panel, and the inlet of the material conveying channel 320 is large, so that the control panel is not required to be placed accurately.

Referring to fig. 9 and 10, further, the first clamping unit 340 includes a first clamping head 341, a second clamping head 342, and a second compression spring 343; the first collet 341 is a long rod with square outside and round inside, the second collet 342 is formed by combining a square head and a round rod, and the round rod of the second collet 342 is inserted into the first collet 341; one side of the first chuck 341 close to the head of the second chuck 342 and the head of the second chuck 342 are provided with protrusions for clamping a control plate, a second pressure spring 343 is sleeved outside a circular rod part of the second chuck 342, and two ends of the second pressure spring 343 are respectively fixed between an inner step of the first chuck 341 and a tail step of the second chuck 342. The first clamping unit 340 thus configured can clamp the control board conveniently, fix the first chuck 341, apply an acting force to the second chuck 342 to drive the chuck to loosen, and after the external force is removed, the second chuck 342 clamps the control board under the elastic acting force of the second pressure spring 343.

Furthermore, a waist-shaped hole is formed in the circumferential wall of the first chuck 341, and a first convex column 3421 is arranged at the position of the waist-shaped hole of the second chuck 342; the second driving unit 350 includes two fixing plates 351 and a second motor 352, which are arranged in parallel, the fixing plate 351 is fixedly installed on the second base plate 310, the edge profile of the fixing plate 351 is in a variable diameter circular shape, as shown in fig. 13, when the first chuck 341 is hinged between the two fixing plates 351, the shaft of the first protruding column 3421 abuts against the edge profile of the fixing plate 351; an opening 321 for accommodating the first clamping unit 340 is arranged at the outlet position of the material conveying channel 320, and when the first clamping unit 340 is positioned in the opening 321, the edge of the fixing plate 351 presses the first convex column 3421 to expand the second chuck 342 and the first chuck 341; when the second motor 352 rotates the first clamping unit 340, the radius of the edge profile of the fixing plate 351 is gradually reduced so that the second collet 342 moves toward the first collet 341 side by the elastic force of the second compression spring 343 and clamps the control plate. The fixing plate 351 can support the first clamping unit 340, and on the other hand, through the matching of the edge profile of the fixing plate and the first protruding column 3421, the first clamping unit 340 can clamp and release the first chuck 341 and the second chuck 342 in the rotating process, which is very convenient.

In order to facilitate discharging of the control panel after welding, the limiting unit 360 can act, and when limiting is needed or material returning is needed, the limiting unit 360 is in different working states. Further, the limiting unit 360 comprises a sector plate 361, a third motor 362, a shift lever 363 and a coil spring 364, the sector plate 361 is arranged at one end of the outlet of the feeding channel 320, the sector plate 361 and the rotating shaft core of the first clamping unit 340 coincide, a second protrusion 312 is arranged at the outlet of the feeding channel 320 and extends upwards from the side of the groove for accommodating the first clamping unit 340, and the second protrusion 312 and the sector plate 361 are in two opposite middle brackets along the section perpendicular to the extending direction of the second protrusion 312 for limiting the position of the control plate in the clamping process of the first chuck 341 and the second chuck 342; the third motor 362 is fixed on the second base plate 310 and drives the sector plate 361 to rotate through the lever 363, a coil spring 364 is arranged between the sector plate 361 and the fixed plate 351, and the sector plate 361 is driven to rotate in the opposite direction by the elastic force of the coil spring 364. When the control panel moves along the material conveying channel 320, the fan-shaped plate 361 blocks the end part of the material conveying channel 320 and forms two middle brackets with the second bulge 312, so that the position of the control panel is positioned when the control panel is abutted against the fan-shaped plate 361, the control panel can be clamped and rotated to a welding station only by starting the second motor 352, in the rotating process, the damage of the control panel is caused by sudden clamping, the edge of the fixing plate 351 is changed slowly, in the clamping process of the first clamping unit 340, the second bulge 312 and the fan-shaped plate 361 can synchronously rotate, and the positioning can be provided for the control panel at the time, so that the positioning accuracy is ensured. On the contrary, similarly, when the first clamping unit 340 rotates back, the first clamping unit 340 will be released, at this time, the third motor 362 is started, the third motor 362 dials the sector plate 361 through the shift lever 363 to rotate to open the outlet of the feeding channel 320, and then the third conveying unit 330 is started, so that the control board, which has been welded at the forefront, will be extruded out to complete the material return when moving along the feeding channel 320. After the control board is returned, the third motor 362 is rotated reversely, the sector plate 361 is reset under the elastic force of the coil spring 364 and closes the outlet of the feeding passage 320, and the next control board is positioned.

Referring to fig. 30-36, there are many structures of the transfer unit 600, such as a relatively mature robot solution, but the cost is relatively high, so that the transfer device 600 further includes a horizontal power unit 610, a vertical power unit 620, and a second clamping unit 630, wherein the horizontal power unit 610 is used for driving the second clamping unit 630 to displace in a horizontal plane, the vertical power unit 620 is used for driving the second clamping unit 630 to displace in a vertical direction, and the second clamping unit 630 is used for clamping or releasing the control panel.

Referring to fig. 31 and 32, specifically, the horizontal power unit 610 includes a supporting frame 611, a third screw rod 612, a fourth sliding rod 613, an eighth motor 614 and a second slider 615, where the supporting frame 611 includes a square frame body and a leg arranged at the lower side of the frame body, two parallel grooves are formed on four side surfaces of the frame body, the grooves of two adjacent side surfaces are arranged in a vertically staggered manner, the fourth sliding rod 613 is arranged at the groove of the frame body, and the third screw rod 612 is arranged between the two grooves; the second sliding blocks 615 are 7-shaped, the two second sliding blocks 615 are combined to form a rectangle, through holes and threaded holes are formed in vertical rod sections of the second sliding blocks 615 and are in sliding fit with the fourth sliding rod 613 respectively, the vertical rod sections of the second sliding blocks 615 and the third screw rods 612 form screw nut fit, grooves which are through up and down are formed in transverse rod sections of the second sliding blocks 615, and the vertical power units 620 are inserted into the grooves. Fig. 32 is a schematic diagram of two second sliders 615 combined, in such a way that the two second sliders 615 are fixed into a square frame structure, and two square frame structures are arranged in a crossing manner in a horizontal power unit 610, so that when the second sliders 615 are driven to act, the position of the intersection point of the two vertical second sliders 615 is changed, and thus the position of the vertical power unit 620 is changed. During control, the eighth motors 614 corresponding to the two second square-frame-shaped sliders 615 synchronously rotate in opposite directions or the spiral directions of the two third lead screws 612 are set to be opposite, so that the two second square-frame-shaped sliders 615 can synchronously slide.

Referring to fig. 33, further, the vertical power unit 620 includes a screw base 621, a lower stopper 622, a fourth screw 623, a ninth motor 624, and a straight rod 625, the fourth screw 623 is fixed on the screw base 621, the straight rod 625 is fixed on a slider of the fourth screw, the ninth motor 624 drives the fourth screw 623 to rotate, the lower end of the screw base 621 is inserted into a groove of the second slider 615 of the horizontal power unit 610, and the lower end is limited by the lower stopper 622; the screw rod base 621 is inserted into the second sliding block 615, so that when the second sliding block 615 acts, the screw rod base 621 is naturally driven to translate, the ninth motor 624 and the fourth screw rod 623 on the screw rod base 621 can drive the straight rod 625 to move up and down, and thus the lower end of the straight rod 625 can freely move in six directions.

Referring to fig. 34-36, the second clamping unit 630 includes a clamp head base 631, two clamping heads 632 and a seventh driving unit, wherein the bottom of the clamp head base 631 extends to two sides to form two protruding columns, the two clamping heads 632 are respectively located at two sides of the bottom of the clamp head base 631, and the clamping heads 632 and the protruding columns located at two sides of the bottom of the clamp head base 631 form a sliding fit to realize clamping and releasing actions; the two clamping heads 632 are tightly bound through the rubber band, and the clamping heads 632 are provided with the notches to prevent the rubber band from sliding up and down, because the clamping heads 632 are small in size and inconvenient to arrange the springs, the two clamping heads 632 are directly bound together through the rubber band, so that the clamping heads are very convenient and reliable to realize, the rubber band is just placed in the notches arranged on the clamping heads 632, and the rubber band cannot easily displace in the using process; the seventh driving unit comprises a fifth screw rod 633, a tenth motor 634 and a push head 635, the fifth screw rod 633 is fixed on the chuck base 631, the push head 635 is positioned above the chuck head 632 and is fixedly connected with a slide block of the fifth screw rod 633, and the push head 635 can move up and down along the chuck base 631 when the tenth motor 634 drives the fifth screw rod 633 to rotate; the pushing head 635 and the clamping head 632 are wedge-shaped, and when the pushing head 635 moves downwards, the clamping head 632 is pushed to overcome the elastic force of the rubber band to separate towards two sides. When the pushing head 635 extends out, the two clamping heads 632 can be conveniently pushed away to achieve the purpose of loosening the to-be-clamped piece, and when the pushing head 635 retracts, the two clamping heads 632 clamp the to-be-clamped piece under the elastic action of the rubber band.

Further, the control panel screening apparatus 100 includes a material bucket 110, a first conveying unit 120, a second conveying unit 130, a camera 200 and a material returning channel 140, the material bucket 110 is used for containing a control panel, the first conveying unit 120 is used for conveying the control panel in the material bucket 110 to the second conveying unit 130, a certain height difference exists between an outlet of the first conveying unit 120 and an inlet of the second conveying unit 130, the posture of the control panel is changed after the control panel falls from the height difference, the camera 200 is used for collecting a picture of the control panel on the second conveying unit 130, the transfer device 600 clamps and transfers the control panel with a downward surface to an inlet position of the material conveying channel 320, and the rest of the control panel is conveyed back to the material returning channel 110 through the material returning channel 140.

Further, the control panel screening device 100 includes an upper plate 150, a lower plate 160, a first driving unit 180 and a camera 200, wherein the upper plate 150 and the lower plate 160 are respectively provided with a plurality of first bar-shaped grids 151 and second bar-shaped grids 161 at intervals, the first bar-shaped grids 151 and the second bar-shaped grids 161 are arranged at intervals in a staggered manner, the first driving unit 180 drives the upper plate 150 or the lower plate 160 to move up and down and enables the upper plane of the first bar-shaped grids 151 to be higher than, level with or lower than the upper plane of the second bar-shaped grids 161, the upper plane of the first bar-shaped grids 151 to be level with the upper plane of the second bar-shaped grids 161, and the upper plane of the first bar-shaped grids 151 to be lower than the upper plane of the second bar-shaped grids 161; the widths of the first strip-shaped grid piece 151 and the second strip-shaped grid piece 161 are larger than the width of the control board and smaller than the length of the control board; the camera 200 is used for collecting pictures when the upper planes of the first strip-shaped grid sheet 151 and the second strip-shaped grid sheet 161 are flush, and the transfer device 600 clamps and transfers the control board with the downward board surface to the inlet position of the material conveying channel 320.

Referring to fig. 16 to 25, the invention further discloses a wire harness screening device, which comprises a fourth conveying unit 410, a wire harness dropping unit and a wire harness passing unit, wherein the wire harness dropping unit and the wire harness passing unit are arranged above the fourth conveying unit 410, the wire harness dropping unit controls a plurality of wire harnesses to drop to the fourth conveying unit 410 in a single dropping mode in an interval dropping mode, the fourth conveying unit 410 conveys the wire harnesses dropped by the wire harness dropping unit to the wire harness passing unit, and the wire harness passing unit is used for limiting the single passing of the wire harnesses. The wire harnesses drop off unit is arranged, so that the wire harnesses drop off in the wire harness drop off unit at intervals in sequence, and the dropping time is controlled, so that the number of the wire harnesses dropping off downwards is reduced until the lowest layer drops off only one wire harness or the wire harnesses do not drop off; through the pencil passing unit, the pencil that will drop separates and according to the individual transport of required condition, has guaranteed the stable, reliable single supply of pencil, follow-up like this just can be convenient carry out centre gripping, pay-off.

Referring to fig. 17 to 20, further, the wire harness dropping unit includes a first housing 420, a rotating plate 430 and a third driving unit 440, the first housing 420 is square and is disposed along a vertical direction, a plurality of rotating plates 430 are disposed in the first housing 420 from top to bottom, a chamber for accommodating the wire harness is formed above each rotating plate 430, and the third driving unit 440 is configured to drive the rotating plates 430 to rotate and enable the chambers above and below the rotating plates 430 to be communicated or closed. The structure of the rotating plate 430 is as shown in fig. 17, a plurality of chambers can be conveniently manufactured by providing the rotating plate 430, and the communication and closing of the chambers can be controlled by controlling the rotation of the rotating plate 430.

Further, be provided with two rotor plates 430 on same height in first shell 420, keep away from one side each other of two rotor plates 430 and articulate on first shell 420, rotor plate 430 is the arc perpendicular to its articulated shaft direction shape, can slow down falling of pencil like this, the one end of rotor plate 430 is provided with second projection 431, the length direction of second projection 431 is parallel with the articulated shaft direction of rotor plate 430, be provided with the arc recess on first shell 420 and be used for dodging second projection 431, third drive unit 440 drives rotor plate 430 through driving second projection 431 along the motion of arc recess and opens and shuts. After the second protruding pillar 431 is provided, the rotation of the rotating plate 430 can be conveniently controlled.

If each group of control panels 430 is controlled independently, the system is complicated and inconvenient to control, so in the present invention, preferably, a plurality of groups of rotating panels 430 are naturally and downwardly arranged, and the two groups of rotating panels 430 adjacently arranged up and down have different open and close states; the third driving unit 440 is provided with two second protruding columns 431 of the plurality of groups of rotating plates 430 numbered odd from top to bottom, which extend from one side surface of the first housing 420 and are integrally driven by one of the third driving units 440, and the second protruding columns 431 of the plurality of groups of rotating plates 430 numbered even extend from the other side surface of the first housing 420 parallel to the side surface and are integrally driven by the other third driving unit 440. By extending the second protruding columns 431 of the rotating plates 430 from different sides, independent control of the two sets of rotating plates is achieved, and thus control is also satisfied that the upper and lower chambers are not opened simultaneously.

Taking the second columns 431 of the odd-numbered rotating plate 430 as an example, the number of the second columns 431 is also large, and how to realize the synchronous control of the second columns 431 is a problem. Further, in the present invention, the third driving unit 440 includes a second sliding bar 441, a driving bar 442, a fourth motor 443, a second cam 444, and a third pressure spring 445; the second sliding rod 441 is fixedly installed on a side plate of the first shell 420, from which the second convex column 431 extends, the second sliding rod 441 is parallel to the side plate surface of the first shell and is positioned in the horizontal plane, and one second sliding rod 441 is respectively arranged above and below the second convex column 431; the driving slat 442 is provided with a through hole for the second sliding bar 441 to pass through, the driving slat 442 can move along the length direction of the second sliding bar 441, a vertical groove is formed in the driving slat 442, the second protruding column 431 is located in the groove, two driving slats 442 are provided, a second cam 444 and a fourth motor 443 for driving the second cam 444 to rotate are arranged between the two driving slats 442, and a third pressure spring 445 is sleeved on a rod body of the second sliding bar 441 located outside the driving slat 442. Therefore, only the forward rotation and the reverse rotation of the fourth motor 443 need to be controlled, the translation of the driving slat 442 can be realized, and when the driving slat 442 translates, the second convex column 431 can be driven to move, so that the rotating plates 430 in the same group can be synchronously opened or closed, and the control is very convenient. The number of layers of the rotating plate 430 can be set according to actual needs, as long as one or zero wire harness is ensured to fall off when the lowermost rotating plate 430 is opened every time.

Referring to fig. 21 to 25, further, the wire harness passing unit includes a second housing 450, a wire harness detecting unit 460, a separating unit 470, a fourth driving unit 480 and a fifth driving unit 490, wherein a plurality of separating units 470 are disposed in the second housing 450, the fourth driving unit 480 drives all the separating units 470 to move up and down integrally for controlling the wire harness to come out from the outlet of the wire harness passing unit, and the fifth driving unit 490 drives the plurality of separating units 470 to move down sequentially in a direction opposite to the direction of the fourth conveying unit 410; the harness detecting unit 460 is provided at an entrance of the harness passing unit and the fifth driving unit 490 drives one partitioning unit 470 to move downward for partitioning every time an entrance of one harness is detected. Because the wire harness dropping unit is in operation, one wire harness does not necessarily drop when the lowest rotating plate 430 rotates, and no wire harness may drop, in order to ensure the continuity of the subsequent material supply, each entering wire harness is firstly separated by the separating unit 470, and then when necessary, the wire harness in the forefront separating unit is released to go out, so that the single continuous supply of the subsequent wire harness can be realized.

Further, the second housing 450 includes two side plates disposed in parallel, a middle partition plate 451 is fixedly disposed between the two side plates, a cover plate 453 is disposed at the upper end of the second housing 450, a passage for a wire harness to pass through is disposed below the middle partition plate 451, and other components are disposed above the middle partition plate. The partition unit 470 includes a square partition plate 471, a "+" - "shaped partition plate holder 472, and a fourth pressing spring 473; a through hole is formed in the middle partition 451 of the second housing 450, the lower end straight rod 625 of the partition support 472 can pass through the through hole, a partition plate 471 is fixedly mounted at the end of the lower end straight rod 625 of the partition support 472, a through hole is formed in the cover plate 453, the upper end straight rod 625 of the partition support 472 can pass through the through hole, a fourth compression spring 473 is arranged between the cross rod of the partition support 472 and the cover plate 453, and the elastic force of the fourth compression spring 473 drives the lower end of the partition plate 471 to be flush with the surface of the fourth. The partition unit 470 is provided in plurality at regular intervals in the conveying direction of the fourth conveying unit 410, for partitioning each wire harness.

Further, the wire harness detection unit 460 includes a detection wheel 461, a light emitting diode 462, a photo resistor 463 and a detection circuit, the detection wheel 461 is arranged at an inlet of the wire harness passing unit, spokes are arranged on a rim of the detection wheel 461 at uniform intervals, a lowest end of each spoke is located at an upper surface of the conveying belt of the fourth conveying unit 410, the wire harness pushes the detection wheel 461 to rotate by a certain angle when passing through the detection wheel 461 along with the conveying of the fourth conveying unit 410, the angle is equal to an included angle of the spokes on the detection wheel 461, the light emitting diode 462 and the photo resistor 463 are arranged on two sides of the detection wheel 461, and the detection circuit detects a resistance value change of the photo resistor 463 to judge whether the detection wheel 461 rotates. When the pencil comes, will drive and detect wheel 461 and rotate, through detecting its rotation condition, can be convenient learn the pencil condition of getting into, this structure is very simple reliable.

Further, the fourth driving unit 480 includes a fifth motor 481 and a cam shaft 482, the cam shaft 482 includes a straight rod 625 and a plurality of small cams uniformly spaced on the straight rod 625, the cam shaft 482 is disposed between the cross bar of the separator holder 472 and the middle separator 451 and a corresponding small cam is disposed under the cross bar of each separator holder 472, and the small cams on the cam shaft 482 press the separator holders 472 against the elastic force of the fourth compression spring 473 and move upward when the fifth motor 481 drives the cam shaft 482 to rotate to a position where the maximum radius of the cams is at the top. When the wire harness feeding device is used, if a wire harness needs to be placed, only the fifth motor 481 needs to act and drive the cam shaft 482 to rotate, the cam shaft 482 pushes the partition plate support 472 to move upwards to drive all the partition plates 471 to move upwards, the wire harness can be continuously conveyed on the fourth conveying unit 410 under the condition that the wire harness is not blocked, after the wire harness is placed, the fifth motor 481 is immediately reset, and the partition plate 471 is driven by the partition plate support 472 to fall down to continuously separate the rest wire harness.

Further, the fifth driving unit 490 includes a push plate 491, a sixth motor 492, a first lead screw 493, and a third slide bar 494; an upper partition plate 452 is arranged above the middle partition plate 451 of the second housing 450, the plate surface of the upper partition plate 452 is perpendicular to the conveying direction of the fourth conveying unit 410, three upper partition plates 452 are evenly arranged along the length direction of the fourth conveying unit 410 at intervals, the partition unit 470 is arranged between the two upper partition plates 452 on the outlet side of the wire harness passing unit, the first screw rod 493 and the third slide rod 494 are fixed between the two upper partition plates 452 on the inlet side of the wire harness passing unit, and the first screw rod 493 and the third slide rod 494 are arranged in parallel to the conveying direction of the fourth conveying unit 410; the push plate 491 comprises a push plate 491 body parallel to the upper partition plate 452 and pushing parts fixed on two sides of the push plate 491 body, a through hole is formed in the push plate 491 body to form sliding fit with a third slide bar 494 and a threaded hole is formed in the push plate 491 body to form screw-nut fit with the first screw bar 493, the push plate 491 slides along the length direction of the third slide bar 494 when the sixth motor 492 drives the first screw bar 493 to rotate, two ends of a cross rod of the partition plate support 472 abut against the upper end of the pushing part of the push plate 491, and the front end of the pushing part of the push rod is wedge. In use, taking fig. 22 as an example, the push plate 491 is controlled to move to the right and push all the partition plate holders 472 to the upper position, and when a bundle of wires enters, the push plate 491 moves to the left for a certain distance to put down the rightmost partition plate 471, so as to block the bundle of wires; if another bundle comes, the pushing plate 491 moves left and puts down the second separator plate 471 from the right to block the second bundle. When the bundle of wires is fed out, the push plate 491 is also operated, assuming that three bundles of wires are blocked from the right to the left, if one bundle of wires is fed out at this time, the push plate 491 is moved to the right and pushes the leftmost separator plate 471 of all the falling separator plates 471 to be lifted. The above structure enables a single passage of the wire harness to be achieved very simply and reliably.

Referring to fig. 16 to 29, the present invention further discloses a wire harness positioning system, which includes a wire harness screening device 400, a transferring device 600 and a wire harness guiding device 500, wherein the wire harness screening device 400 is used for screening a plurality of wire harnesses from a plurality of wire harnesses, the transferring device 600 is used for clamping the single wire harness screened by the wire harness screening device 400 and transferring the single wire harness to the wire harness guiding device 500, and the wire harness guiding device 500 is used for guiding wires of the single wire harness to a to-be-welded hole of a control board and fixing the wire harness. Through setting up pencil sieving mechanism 400, realize the separation of bundle of pencil, guarantee to supply a pencil at every turn, on rethread transfer device 600 transports a single pencil to pencil guiding device 500, then with the wire guide in the pencil to the control panel treat the welding hole site on, this device structure is reliable, control convenience very, after the pencil can be accurate the location, just can use automatic welder to weld together with the control panel, ensure that whole flow can both be automatic.

Referring to fig. 26 to 29, the harness guide device 500 further includes a base 510, and a harness posture adjustment unit 520 and a sixth driving unit 530 fixed to the base 510, wherein the harness posture adjustment unit 520 is configured to adjust the wires arranged in parallel and transversely in the harness to be separated and arranged upward, the separated positions of the wires correspond to the holes to be welded on the control board, and the sixth driving unit 530 is configured to drive the harness posture adjustment unit 520 to clamp or unclamp the wires.

Further, the harness posture adjustment unit 520 includes an upper guide block, a lower guide block, a clamp plate 525, and a fifth compression spring 526; the upper guide block and the lower guide block are arranged between the two clamping plates 525 which are arranged in parallel, the upper guide block comprises a square body and a semicircular pipe arranged at one end of the square body, the lower guide block comprises a square body and a semicircular pipe arranged at one end of the square body, and grooves are formed in the lower side of the square body of the upper guide block and the upper side of the square body of the lower guide block; when the upper guide block and the lower guide block are combined together, the grooves on the two square bodies are combined into a wire passage, the two semicircular tubes are combined into a whole circular tube, the wire passage on one side far away from the circular tube is in a horn shape from large to small, the distance between the wire passages on one side close to the circular tube is gradually increased to the distance between the hole positions to be welded on the control board, the length direction of the circular tube is in an upward-bent arc shape, and the wire is adjusted to be in a vertical posture from a horizontal posture through the circular tube; a fifth pressure spring 526 is disposed between the upper and lower guide blocks, the upper and lower guide blocks are separated from each other by an elastic force of the fifth pressure spring 526, and the upper and lower guide blocks are driven to be combined by a sixth driving unit 530. The clamp plate 525 is mainly used for fixing the upper guide block and the lower guide block, the upper guide block and the lower guide block are arranged to guide the lead in the wire harness, the groove in the square body is mainly used for separating the lead, and the circular tube-shaped part is mainly used for guiding the lead in the wire harness from a horizontal state to a vertical state, so that the control panel can be directly placed on the wire harness, a welding position is exposed, and welding is directly completed by an automatic welding machine.

The clamping plate 525 is rectangular, threaded holes are formed in two sides of the upper guide block, bolts are screwed in through holes formed in the clamping plate 525 to realize fixation, waist-shaped lugs arranged on two sides of the lower guide block slide along waist-shaped holes formed in the clamping plate 525, the lower guide block and the upper guide block are combined together or separated from each other, and the length direction of the waist-shaped hole in the lower guide block is parallel to any radial direction of a circular pipe; the upper guide block and the lower guide block are provided with spring hole positions for accommodating the fifth pressure spring 526, and the hole core direction of the holes is consistent with the length direction of the waist-shaped holes arranged on the clamping plate 525. The upper guide block can be fixed on the clamping plate 525 by arranging the waist-shaped hole on the clamping plate 525 and the waist-shaped lug on the lower guide block, and simultaneously, the lower guide block can be separated from or attached to the upper guide block; when the welding wire harness clamp is attached to the welding wire harness, the wire harness can be clamped and fixed, and the wire harness is guaranteed not to move before welding.

Furthermore, the number of the wire harnesses to be positioned is two, the first wire harness is provided with two parallel wires, and the second wire harness is provided with three parallel wires; the number of the upper guide blocks and the number of the lower guide blocks are two, the first upper guide block 521 and the first lower guide block 523 are used for guiding the first wire harness, and the second upper guide block 522 and the second lower guide block 524 are used for guiding the second wire harness; two lead channels are arranged on the first upper guide block 521 and the first lower guide block 523, and a thin partition plate is arranged in the middle of the trumpet-shaped part of the two lead channels; three wire passages are arranged on the second upper guide block 522 and the second lower guide block 524, two thin partition plates are arranged in the middle of the horn-shaped parts of the three wire passages, and the distance between the two thin partition plates is matched with the distance between the two wires. Regardless of the types of wire harnesses, the wire harness guide device 500 may be used for separation and positioning as long as they are wires arranged in parallel, and only the wire passages need to be arranged in the same manner.

Furthermore, a protrusion is arranged below the lower guide block, and the outline of the end part of the protrusion, which is perpendicular to the plate surface of the clamping plate 525, is arc-shaped; the sixth driving unit 530 includes a seventh motor 531, a second lead screw 532, a first slider 533 and a driving plate 534, the seventh motor 531 and the second lead screw 532 are fixedly mounted on the base 510, a shaft core of the second lead screw 532 is identical to the length direction of the clamping plate 525, the driving plate 534 is disposed below the lower guide block, the driving plate 534 is fixedly connected with the first slider 533, and the first slider 533 drives the driving plate 534 to slide when the seventh motor 531 drives the second lead screw 532 to rotate; shallow grooves are formed in the positions, protruding below the first lower guide block 523 and the second lower guide block 524, of the drive plate 534, the upper guide block and the lower guide block are combined together when the protruding below the lower guide block abuts against the upper plate surface of the drive plate 534, and the upper guide block and the lower guide block are separated under the elastic action force of the fifth pressure spring 526 when the protruding below the lower guide block abuts against the shallow grooves of the drive plate 534; the width of the shallow groove below the first lower guide block 523 is greater than the width of the shallow groove below the second lower guide block 524, and the protrusion and the shallow groove of the lower guide block have the following three matching modes when the seventh motor 531 drives the driving plate 534 to slide: the lower protrusions of the first lower guide block 523 and the second lower guide block 524 are located in a shallow groove of the drive plate 534, the lower protrusion of the first lower guide block 523 is located in a shallow groove of the drive plate 534 and the lower protrusion of the second lower guide block 524 abuts on the upper plate surface of the drive plate 534, and the lower protrusions of the first lower guide block 523 and the second lower guide block 524 abut on the upper plate surface of the drive plate 534. Here, taking two harnesses as an example, it is desirable that the fixing of the second harness is performed after the fixing of the first harness, and therefore the first harness and the second harness cannot be locked at the same time. In fig. 29, the first wire harness on the left side is in a loose state, and the second wire harness on the right side is in a clamped state; on the basis, if the driving plate 534 below moves leftwards, the two wire harnesses are clamped, if the driving plate 534 below moves rightwards until the right protrusion falls into the shallow groove, the two wire harnesses are loosened, so that the two wire harnesses can be conveniently and sequentially clamped by well controlling one motor, and the use is very convenient.

Referring to fig. 37 and 38, the invention further discloses a control panel and a wire harness automatic welding system, which comprises a control panel screening device 100, a control panel positioning device 300, a wire harness screening device 400, a wire harness guiding device 500 and a transfer device 600, wherein the control panel screening device 100 is used for adjusting the posture of the control panel, the transfer device 600 is used for clamping the control panel which is just placed and conveying the control panel to the control panel positioning device 300, and the control panel positioning device 300 is used for conveying the control panel to a station to be welded after positioning and clamping the control panel; the wire harness screening device 400 is used for screening a plurality of wire harnesses from the plurality of wire harnesses, the transfer device 600 is used for clamping the single wire harness screened by the wire harness screening device 400 and transferring the single wire harness to the wire harness guiding device 500, and the wire harness guiding device 500 is used for guiding the wires of the single wire harness to the to-be-welded hole positions of the control board and fixing the wire harness. Here, the control panel is screened out and positioned by the control panel screening device 100 and the control panel positioning device 300; the wire harness is positioned through the wire harness screening device 400 and the wire harness guiding device 500, the positioned wire harness can be conveniently placed on a to-be-welded hole position of the positioned control panel, the wire harness is automatically welded through an automatic welding machine, the transfer device 600 is mainly used for conveying the control panel or the wire harness among the devices, the whole device is fully automatic, the production speed of products is greatly improved, and the product quality is guaranteed.

The invention also discloses a control panel and a wire harness automatic welding method, which comprises the following steps: s100, screening a single wire harness from a plurality of wire harnesses in a bundle by a wire harness screening device 400; s200, clamping the single wire harness screened by the wire harness screening device 400 by the transfer device 600 and transferring the single wire harness to the wire harness guiding device 500; s300, the wire harness guiding device 500 is used for guiding the conducting wires of the single wire harness to the hole positions to be welded of the control board and fixing the wire harness; s400, adjusting the posture of the control panel through the control panel screening device 100, and shooting an image of the control panel through the camera 200 so as to recognize the posture of the control panel; s500, the transfer device 600 conveys the control panel to the control panel positioning device 300; s600, the control board is positioned and clamped by the control board positioning device 300 and then conveyed to a station to be welded; s700, welding the control panel and the wire harness together after the control panel and the wire harness are fixed; s800, the wire harness guide device 500 loosens the fixation of the wire harness, and the control panel positioning device 300 conveys the welded control panel to a material returning station and loosens the control panel; the steps S100-S300 are not in sequence with the steps S400-S600. In the above steps, the control panel is screened out and positioned by the control panel screening device 100 and the control panel positioning device 300; the wire harness is positioned by the wire harness screening device 400 and the wire harness guiding device 500, the positioned wire harness can be conveniently placed on a to-be-welded hole position of the positioned control panel, the wire harness is automatically welded by an automatic welding machine, the transfer device 600 is mainly used for conveying the control panel or the wire harness among the devices, the whole method is fully automatic, the production speed of products is greatly improved, and the product quality is guaranteed.

Further, the wire harness conveying device comprises an installation platform 700, the wire harnesses to be welded on the control board comprise a first wire harness and a second wire harness, three transfer devices 600 are provided, two wire harness screening devices 400 are provided, the control board positioning devices 300 and the wire harness guiding devices 500 are respectively arranged on the installation platform 700 in the front-back direction, the control board positioning devices 300 are fixedly installed on the installation platform 700, the wire harness guiding devices 500 are installed on the installation platform 700 through eighth driving units 710, and the eighth driving units 710 are used for driving the wire harness guiding devices 500 to move in the left-right direction; a control panel screening device 100 is arranged on one side of the control panel positioning device 300 far away from the wire harness guiding device 500, and a transfer device 600 is arranged between the control panel screening device 100 and the control panel positioning device 300; the left side and the right side of the mounting table 700 are respectively provided with a wire harness screening device 400 for screening a first wire harness and a second wire harness, a transfer device 600 is respectively arranged between the two wire harness screening devices 400 and the wire harness guiding device 500, and the three transfer devices 600 are arranged in a shape of Chinese character 'pin'; the automatic welding of the control panel and the wire harness is realized according to the following steps: s1, starting the eighth driving unit 710 to drive the harness guide 500 to move to the harness screening device 400 side of the first harness, and fixing the first harness on the harness guide 500 through steps S100-S300; s2, starting the eighth driving unit 710 to drive the harness guide 500 to move to the harness screening device 400 side of the second harness, and fixing the second harness on the harness guide 500 through steps S100-S300; s3, starting the eighth driving unit 710 to drive the wire harness guide device 500 to move to the welding station, fixing the control board on the welding station through the steps S400-S600, and inserting the ends of the first wire harness and the second wire harness right on the to-be-welded holes of the control board; s4, and then steps S700 and S800 are performed to complete the automatic soldering of the control board and the wire harness.

Further, the control panel screening apparatus 100 may adopt the aforementioned conveying type or rolling type preferred structure.

Further, the control panel positioning device 300, the wire harness screening device 400, the wire harness guiding device 500 and the transferring device 600 may all adopt the aforementioned preferred schemes. The transfer device 600 transfers as follows: b1, starting a ninth motor 624 to drive the fourth screw 623 to rotate, and driving the straight rod 625 to move upwards to a high position by the slide block of the fourth screw 623; b2, starting an eighth motor 614, enabling a second sliding rod 441 to move in the supporting frame 611 and drive a screw rod base 621 of the vertical power unit 620 to move above a control board or a wire harness to be clamped in the horizontal plane; b3, starting a ninth motor 624 to drive the fourth screw 623 to rotate reversely, wherein a sliding block of the fourth screw 623 drives a straight rod 625 to move downwards until the second clamping unit 630 is located at the position of a control board or a wiring harness; b4, the second clamping unit 630 acts to clamp the control board or the first wire harness or the second wire harness; b5, controlling the second clamping unit 630 of the grip control panel to move to the inlet position of the feeding path 320, controlling the second clamping unit 630 gripping the first wire harness or the second wire harness to move to the wire harness guide 500 and inserting the wire harness into the wire harness guide 500 according to the steps B1-B3; b6, controlling the action of the second clamping unit 630 to loosen the control board or the first wiring harness or the second wiring harness.

Further, the second clamping unit 630 includes a clamp head seat 631, two clamping heads 632 and a seventh driving unit, wherein the bottom of the clamp head seat 631 extends to two sides to form two protruding columns, the two clamping heads 632 are respectively located at two sides of the bottom of the clamp head seat 631, and the clamping heads 632 and the protruding columns located at two sides of the bottom of the clamp head seat 631 form a sliding fit to realize clamping and releasing actions; the two clamping heads 632 are tightly bound through rubber bands, and notches are formed in the clamping heads 632 to prevent the rubber bands from sliding up and down; the seventh driving unit comprises a fifth screw rod 633, a tenth motor 634 and a push head 635, the fifth screw rod 633 is fixed on the chuck base 631, the push head 635 is positioned above the chuck head 632 and is fixedly connected with a slide block of the fifth screw rod 633, and the push head 635 can move up and down along the chuck base 631 when the tenth motor 634 drives the fifth screw rod 633 to rotate; the pushing head 635 and the clamping head 632 are wedge-shaped, and when the pushing head 635 moves downwards, the clamping head 632 is pushed to overcome the elastic force of the rubber band to separate towards two sides.

Claims

1. A control panel and a wire harness automatic welding method are characterized in that: the method comprises the following steps:

s100, screening a single wire harness from a plurality of wire harnesses in a bundle through a wire harness screening device (400);

s200, clamping the single wire harness screened by the wire harness screening device (400) by the transfer device (600) and transferring the single wire harness to the wire harness guiding device (500);

s300, a wire harness guiding device (500) is used for guiding the conducting wires of the single wire harness to the holes to be welded of the control board and fixing the wire harness;

s400, the control panel is adjusted through the control panel screening device (100), and the camera (200) is used for shooting the control panel image so as to recognize the control panel posture;

s500, the transfer device (600) conveys the control panel which is just placed to the control panel positioning device (300);

s600, positioning and clamping the control board by the control board positioning device (300) and then conveying the control board to a station to be welded;

s700, welding the control panel and the wire harness together after the control panel and the wire harness are fixed;

s800, loosening the fixation of the wire harness by the wire harness guide device (500), and conveying the welded control plate to a material returning station by the control plate positioning device (300) and loosening the control plate;

the steps S100-S300 are not in sequence with the steps S400-S600.

2. The control panel and the automatic wire harness welding method according to claim 1, wherein: the wire harness conveying device comprises an installation table (700), the wire harnesses to be welded on the control panel comprise a first wire harness and a second wire harness, three transfer devices (600) are arranged, two wire harness screening devices (400) are arranged, a control panel positioning device (300) and a wire harness guiding device (500) are respectively arranged on the installation table (700) in the front-back direction, the control panel positioning device (300) is fixedly installed on the installation table (700), the wire harness guiding device (500) is installed on the installation table (700) through an eighth driving unit (710), and the eighth driving unit (710) is used for driving the wire harness guiding device (500) to move in the left-right direction; a control panel screening device (100) is arranged on one side, away from the wire harness guiding device (500), of the control panel positioning device (300), and a transfer device (600) is arranged between the control panel screening device (100) and the control panel positioning device (300); the left side and the right side of the mounting table (700) are respectively provided with a wire harness screening device (400) for screening a first wire harness and a second wire harness, a transfer device (600) is respectively arranged between the two wire harness screening devices (400) and the wire harness guiding device (500), and the three transfer devices (600) are arranged in a shape of Chinese character 'pin'; the automatic welding of the control panel and the wire harness is realized according to the following steps:

s1, starting an eighth driving unit (710) to drive the wire harness guide device (500) to move to the wire harness screening device (400) side of the first wire harness, and fixing the first wire harness on the wire harness guide device (500) through steps S100-S300;

s2, starting an eighth driving unit (710) to drive the wire harness guide device (500) to move to the wire harness screening device (400) side of the second wire harness, and fixing the second wire harness on the wire harness guide device (500) through steps S100-S300;

s3, starting an eighth driving unit (710) to drive the wire harness guide device (500) to move to the welding station, fixing the control board on the welding station through the steps S400-S600, and just inserting the ends of the first wire harness and the second wire harness at the to-be-welded hole positions of the control board;

s4, and then steps S700 and S800 are performed to complete the automatic soldering of the control board and the wire harness.

3. The control panel and the automatic wire harness welding method according to claim 2, wherein: the control panel screening device (100) comprises a charging basket (110), a first conveying unit (120), a second conveying unit (130), a camera (200) and a material return channel (140), and in the step S400, the control panel is subjected to posture adjustment according to the following steps:

a11, placing the control panel into a charging basket (110);

a12, starting the first conveying unit (120) and the second conveying unit (130), conveying the control board forwards along the first conveying unit (120) and the second conveying unit (130) from the material barrel (110) and returning the control board to the material barrel (110) through the material returning channel (140) to form circulation, and changing the posture when the control board falls from the first conveying unit (120) to the second conveying unit (130);

a13, stopping the first conveying unit (120) and the second conveying unit (130) after running for a set time t, wherein the time t is equal to the length of the conveying belt of the second conveying unit (130) divided by the advancing speed of the control plate;

a14, acquiring images of a control board on the second conveying unit (130) through a camera (200), identifying the control board with the board facing downwards in the images and recording the position;

a15, the transfer device (600) clamps the control boards one by one according to the recorded positions and transfers the control boards to the inlet position of the material conveying channel (320);

and A16, returning to the step A13 after the transfer is finished.

4. The control panel and the automatic wire harness welding method according to claim 2, wherein: the control panel screening device (100) comprises an upper panel body (150), a lower panel body (160), a first driving unit (180) and a camera (200), wherein the upper panel body (150) and the lower panel body (160) are respectively provided with a plurality of first strip-shaped grid pieces (151) and second strip-shaped grid pieces (161) at intervals, the first strip-shaped grid pieces (151) and the second strip-shaped grid pieces (161) are arranged in a staggered mode at intervals, and the widths of the first strip-shaped grid pieces (151) and the second strip-shaped grid pieces (161) are larger than the width of a control panel and smaller than the length of the control panel; in step S400, the attitude of the control panel is adjusted as follows:

a21, starting a first driving unit (180) to reset the device, wherein the device is reset, namely the upper plane of a first strip-shaped grid sheet (151) is flush with the upper plane of a second strip-shaped grid sheet (161);

a22, placing a control panel on a first strip-shaped grid sheet (151) and a second strip-shaped grid sheet (161) which are parallel and level;

a23, starting the first driving unit (180) to switch the first strip-shaped grid sheet (151) between three states of being higher than, equal to and lower than the second strip-shaped grid sheet (161), stopping the first driving unit (180) after executing the set times and resetting the device;

a24, acquiring images of control panels on a first strip-shaped grid sheet (151) and a second strip-shaped grid sheet (161) through a camera (200), identifying the control panel with the panel facing downwards in the images and recording the position;

a25, the transfer device (600) clamps the control boards one by one according to the recorded positions and transfers the control boards to the inlet position of the material conveying channel (320);

and A26, returning to the step A23 after the transfer is finished.

5. The control board and the automatic wire harness welding method according to claim 3 or 4, wherein: the control panel positioning device (300) comprises a second bottom plate (310), a material conveying channel (320), a third conveying unit (330), a first clamping unit (340), a second driving unit (350) and a limiting unit (360), and the step S600 comprises the following steps:

c1, the inlet position of the material conveying channel (320) is used for receiving the control board conveyed by the transfer device (600) and carrying out primary positioning;

c2, the third conveying unit (330) and the limiting unit (360) act, so that the control board moves to the outlet position along the conveying channel (320) and is abutted against the limiting unit (360) for accurate positioning;

c3, the first clamping unit (340) acts and clamps the control board;

c4, the second driving unit (350) acts and drives the first clamping unit (340) to drive the control board to be conveyed to the welding station;

in step S800, the material is returned according to the following steps:

d1, after the welding of the wire harness on the control board is finished, the second driving unit (350) reversely acts and drives the first clamping unit (340) to drive the control board to be conveyed to the outlet position of the material conveying channel (320);

d2, the first clamping unit (340) acts and releases the control plate;

d3, the limiting unit (360) acts to open one end of the outlet of the material conveying channel (320), and the third conveying unit (330) acts to drive the control board in the material conveying channel (320) to act and push the welded control board to fall from the material conveying channel (320), thereby realizing material returning.

6. The control panel and the automatic wire harness welding method according to claim 5, wherein: the harness screening device (400) comprises a fourth conveying unit (410), a harness dropping unit and a harness passing unit, and the step S100 comprises the following steps:

a. the wire harness falling unit is provided with a plurality of layers of chambers which are arranged up and down, and the whole wire harness is placed in the uppermost chamber;

b. controlling the wire harness falling unit to act, opening the communication relation of the upper chamber and the lower chamber in a time-sharing manner, and communicating at most two adjacent chambers at the same time so that the wire harness falls to the lower chamber in sequence;

c. after falling for a plurality of times, zero or one wiring harness can fall from the lowest chamber to a fourth conveying unit (410) and is conveyed to the inlet of the wiring harness passing unit through the fourth conveying unit (410);

d. when a wire harness detection unit (460) arranged at the inlet of the wire harness passing unit detects that the wire harness enters the wire harness passing unit, the wire harness is driven to pass through the unit to act so as to separate the wire harness;

e. the wire harness passing unit acts at regular intervals or according to the number of wire harnesses partitioned therein and allows one of the wire harnesses to pass therethrough.

7. The control panel and the automatic wire harness welding method according to claim 6, wherein: the wire harness falling unit comprises a first shell (420), a rotating plate (430) and a third driving unit (440), wherein the first shell (420) is square and is arranged along the vertical direction, a plurality of rotating plates (430) are arranged in the first shell (420) from top to bottom, a cavity in the step a is formed above each rotating plate (430), and in the step b, the third driving unit (440) drives the rotating plates (430) to rotate to realize the communication or closing of the upper cavity and the lower cavity of each rotating plate (430).

8. The control panel and wire harness automatic welding method according to claim 7, wherein: the wire harness passing unit comprises a second shell (450), a wire harness detection unit (460), a separation unit (470), a fourth driving unit (480) and a fifth driving unit (490), wherein the second shell (450) is internally provided with a plurality of separation units (470), and the wire harness detection unit (460) is arranged at the inlet of the wire harness passing unit; in step d, when the wire harness detection unit (460) detects that a wire harness enters the wire harness passing unit, the fifth driving unit (490) drives a separating unit (470) to move downwards for separation, and each separating unit (470) moves downwards in sequence in the direction opposite to the direction of the fourth conveying unit (410); in step e, the fourth driving unit (480) drives all the partition units (470) to move up and down integrally so as to allow one wire harness to come out of the wire harness passing unit and simultaneously starts the fifth driving unit (490) to drive the partition unit (470) which falls finally to move up.

9. The control panel and wire harness automatic welding method according to claim 8, wherein: the wire harness guiding device (500) comprises a base (510), a wire harness posture adjusting unit (520) and a sixth driving unit (530), wherein the wire harness posture adjusting unit (520) and the sixth driving unit are fixed on the base (510), and the wire harness posture adjusting unit (520) comprises an upper guide block, a lower guide block, a clamping plate (525) and a fifth compression spring (526); the upper guide block and the lower guide block are arranged between two clamping plates (525) which are arranged in parallel, the upper guide block comprises a square body and a semicircular pipe arranged at one end of the square body, the lower guide block comprises a square body and a semicircular pipe arranged at one end of the square body, and grooves are formed in the lower side of the square body of the upper guide block and the upper side of the square body of the lower guide block; when the upper guide block and the lower guide block are combined together, the grooves on the two square bodies are combined into a wire passage, the two semicircular tubes are combined into a whole circular tube, the wire passage on one side far away from the circular tube is in a horn shape from large to small, the distance between the wire passages on one side close to the circular tube is gradually increased to the distance between the hole positions to be welded on the control board, the length direction of the circular tube is in an upward-bent arc shape, and the wire is adjusted to be in a vertical posture from a horizontal posture through the circular tube; a fifth pressure spring (526) is arranged between the upper guide block and the lower guide block, the upper guide block and the lower guide block are separated by the elastic acting force of the fifth pressure spring (526), and the upper guide block and the lower guide block are driven to be combined together by a sixth driving unit (530).

10. The control panel and wire harness automatic welding method according to claim 9, wherein: the transfer device (600) comprises a horizontal power unit (610), a vertical power unit (620) and a second clamping unit (630);

the horizontal power unit (610) comprises a supporting frame (611), a third screw rod (612), a fourth sliding rod (613), an eighth motor (614) and a second sliding block (615), wherein the supporting frame (611) comprises a square frame body and supporting legs arranged on the lower side of the frame body, two grooves which are arranged in parallel are formed in four side surfaces of the frame body, the grooves in two adjacent side surfaces are arranged in a vertically staggered mode, the fourth sliding rod (613) is arranged at the groove of the frame body, and the third screw rod (612) is arranged between the two grooves; the second sliding blocks (615) are 7-shaped, the two second sliding blocks (615) are combined to form a rectangle, through holes and threaded holes are formed in vertical rod sections of the second sliding blocks (615), the vertical rod sections of the second sliding blocks are respectively in sliding fit with the fourth sliding rod (613) and in screw nut fit with the third screw rod (612), grooves which are vertically through are formed in transverse rod sections of the second sliding blocks (615), and the vertical power units (620) are inserted into the grooves;

the vertical power unit (620) comprises a screw rod base (621), a lower stop block (622), a fourth screw rod (623), a ninth motor (624) and a straight rod (625), the fourth screw rod (623) is fixed on the screw rod base (621), the straight rod (625) is fixed on a sliding block of the fourth screw rod, the ninth motor (624) drives the fourth screw rod (623) to rotate, the lower end of the screw rod base (621) is inserted into a groove of a second sliding block (615) of the horizontal power unit (610), and the lower end of the screw rod base is limited by the lower stop block (622);

the transfer device (600) performs the transfer according to the following steps:

b1, starting a ninth motor (624), driving a fourth screw rod (623) to rotate, and driving a straight rod (625) to move upwards to a high position by a sliding block of the fourth screw rod (623);

b2, starting an eighth motor (614), wherein the second sliding rod (441) moves in the supporting frame (611) and drives a screw rod base (621) of the vertical power unit (620) to move above the control board or the wire harness to be clamped in the horizontal plane;

b3, starting a ninth motor (624), driving a fourth screw rod (623) to rotate reversely, and driving a straight rod (625) to move downwards by a sliding block of the fourth screw rod (623) until a second clamping unit (630) is located at a control board or a wiring harness position;

b4, a second clamping unit (630) acts to clamp the control board or the first wiring harness or the second wiring harness;

b5, controlling the second clamping unit (630) of the clamping control board to move to the inlet position of the material conveying channel (320) according to the steps B1-B3, controlling the second clamping unit (630) clamping the first wire harness or the second wire harness to move to the wire harness guide device (500) and inserting the wire harness into the wire harness guide device (500);

b6, controlling the action of the second clamping unit (630) to loosen the control board or the first wiring harness or the second wiring harness;

the second clamping unit (630) comprises a clamp head seat (631), two clamping heads (632) and a seventh driving unit, wherein the bottom of the clamp head seat (631) extends towards two sides to be provided with convex columns, the two clamping heads (632) are arranged and are respectively positioned on two sides of the bottom of the clamp head seat (631), and the clamping heads (632) and the convex columns arranged on two sides of the bottom of the clamp head seat (631) form sliding fit so as to realize clamping and loosening actions; the two clamping heads (632) are tightly bound through the rubber band, and the clamping heads (632) are provided with notches to prevent the rubber band from sliding up and down; the seventh driving unit comprises a fifth screw rod (633), a tenth motor (634) and a push head (635), the fifth screw rod (633) is fixed on the clamp head seat (631), the push head (635) is positioned above the clamp head (632) and is fixedly connected with a sliding block of the fifth screw rod (633), and the push head (635) can move up and down along the clamp head seat (631) when the tenth motor (634) drives the fifth screw rod (633) to rotate; the pushing head (635) and the clamping head (632) are in a wedge shape, and when the pushing head (635) moves downwards, the clamping head (632) is pushed to overcome the elastic force of the rubber band to separate towards two sides.