CN110919152A - Automatic spot welding system for air conditioner chassis screw - Google Patents

Automatic spot welding system for air conditioner chassis screw Download PDF

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Publication number
CN110919152A
CN110919152A CN202010008737.3A CN202010008737A CN110919152A CN 110919152 A CN110919152 A CN 110919152A CN 202010008737 A CN202010008737 A CN 202010008737A CN 110919152 A CN110919152 A CN 110919152A
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CN
China
Prior art keywords
positioning
cylinder
frame
blanking
screw
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010008737.3A
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Chinese (zh)
Inventor
史春雷
张力
牛振华
李耀
杜志新
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anyang Hao Rui Robot Co Ltd
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Anyang Hao Rui Robot Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Anyang Hao Rui Robot Co Ltd filed Critical Anyang Hao Rui Robot Co Ltd
Priority to CN202010008737.3A priority Critical patent/CN110919152A/en
Publication of CN110919152A publication Critical patent/CN110919152A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/002—Resistance welding; Severing by resistance heating specially adapted for particular articles or work
    • B23K11/004—Welding of a small piece to a great or broad piece
    • B23K11/0046—Welding of a small piece to a great or broad piece the extremity of a small piece being welded to a base, e.g. cooling studs or fins to tubes or plates
    • B23K11/0053—Stud welding, i.e. resistive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/10—Spot welding; Stitch welding
    • B23K11/11—Spot welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/36—Auxiliary equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0426—Fixtures for other work

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Automatic Assembly (AREA)

Abstract

Air conditioner chassis screw automatic spot welding system, including screw material feeding unit, positioner, spot welding device, above-mentioned each device is connected to control system, screw material feeding unit include the vibration dish, the vibration dish is connected to control system, positioner constitute by 4 sets of thick positioning mechanism and 1 set of accurate positioning mechanism that distribute around at least, thick positioning mechanism including four thick positioning cylinder that are located the chassis both sides, be connected with angle bar shape locating plate on the jar pole of two thick positioning cylinders of left and right directions, the jar pole tip of two thick positioning cylinders of fore-and-aft direction articulates on the actuating lever, the cooperation of accurate positioning mechanism sets up in foremost thick positioning mechanism department, spot welding device include three spot welders, three spot welders set up and cooperate respectively to set up in three sets of thick positioning device departments in back. The system realizes automatic spot welding of the screw.

Description

Automatic spot welding system for air conditioner chassis screw
Technical Field
The invention relates to automatic machine equipment in air conditioner production, in particular to an automatic spot welding system for screws of an air conditioner chassis.
Background
In the manufacturing of the air conditioner, three screws for fixing a compressor need to be fixedly welded on a base plate, three screw holes are reserved in the current base plate during manufacturing, the three screw holes are positioned on the same circle, the screws with the adaptive models penetrate through the three screw holes during operation, then the screws and the base plate are fixed together after spot welding through a spot welding machine, in the current production of the air conditioner base plate, the operation is carried out manually, on one hand, the function is realized without the automatic equipment at present, on the other hand, the difficulty in developing the function is high, the reason is that the air conditioner models produced by factories are more, the positions of the screw holes of the base plates in different models are different, so that one set of equipment is difficult to meet the production requirements of the air conditioners with various models, and the sorting of the screws by utilizing a vibration plate can be completely realized in many occasions in the current production, the sequenced screws can be arranged in a front-back sequence according to design requirements, however, how to accurately enter the sequenced screws into three screw holes on the chassis, automatic adjustment can not be realized on the existing equipment according to chassis of different models during feeding, spot welding needs to be carried out on a spot welding machine after the screws are fed into the screw holes, the existing air conditioner chassis screw welding is carried out manually, and the development of the automatic welding equipment for the air conditioner chassis screws is a necessary development means along with the increase of labor cost and various uncertainties in the aspects brought by manual operation in production practice.
Disclosure of Invention
The invention aims to solve the problems of shortage of automation equipment, high labor cost, low efficiency and the like in the production of the conventional air conditioner chassis and provides an automatic spot welding system for screws of the air conditioner chassis.
In order to realize the purpose of the invention, the following technical scheme is adopted: an automatic spot welding system for screws of an air conditioner chassis comprises a screw feeding device, a positioning device and a spot welding device, wherein all the devices are connected to a control system,
the screw feeding device comprises a vibrating disc, the vibrating disc is connected to a control system, the vibrating disc is in one group or multiple groups, the number of each group is 3, the tail end of the vibrating disc is provided with a crack track, sequenced screws are hung in the crack track, a cutting disc is rotatably arranged on a feeding frame in the tail end of each crack track, the tail end of each crack track is positioned at the edge of the cutting disc, one group or multiple groups of blanking holes are formed in the cutting disc, each group of blanking holes consists of 3 blanking holes which are uniformly distributed, a blanking slit which passes through the blanking holes is formed in the edge of the cutting disc, a rotation driving device is connected to the cutting disc and drives the cutting disc to rotate back and forth, when the cracks are communicated with the blanking slits, the rotation driving device drives the cutting disc to rotate, the screws finally enter the blanking holes from the blanking slit, multiple groups of blanking pipes are arranged on a feeding rack below the cutting disc, each group of blanking pipes consists of 3 blanking pipes which are uniformly distributed, the positions of the blanking pipes correspond to the positions of blanking holes after a blanking disc carries a screw to rotate up and down, 3 material supporting pipes which are positioned on the same circumference are arranged below the blanking pipes, each blanking pipe in each group of blanking pipes is connected to one material supporting pipe through a blanking hose, a material supporting device is arranged in the material supporting pipe close to the outlet of the screw or is arranged below the material supporting pipe, a cylinder frame is fixedly connected to each material supporting pipe, an upper cylinder and a lower cylinder are fixedly connected to the cylinder frame, a clamping jaw cylinder is connected to a cylinder rod of the upper cylinder and the lower cylinder, a clamping jaw hole of the clamping jaw cylinder is positioned below the material supporting pipe, a diameter adjusting mechanism is arranged in a matching way with the material supporting pipe and comprises a diameter adjusting plate, the diameter adjusting plate is uniformly distributed on the diameter adjusting plate and is provided with a plurality of cam-shaped strip holes, the material supporting pipes are inserted into the strip-, the diameter adjusting frame is fixedly connected with a radial guide plate, the radial guide plate is provided with a radial guide groove, each material supporting pipe is arranged in the guide groove in a sliding manner in a radial direction in a matching manner or in the guide groove in a sliding manner in a radial direction through a guide block, and the rotary driving device, the rotary power driving device and each air cylinder are controlled by a control system;
the positioning device comprises 4 sets of coarse positioning mechanisms and 1 set of fine positioning mechanism which are at least distributed front and back, the coarse positioning mechanism comprises four coarse positioning cylinders which are positioned at two sides of the chassis, two of the four coarse positioning cylinders are in the left-right direction, and two of the four coarse positioning cylinders are in the front-back direction, angle iron-shaped positioning plates are connected to cylinder rods of the two coarse positioning cylinders in the left-right direction, the end parts of the cylinder rods of the two coarse positioning cylinders in the front-back direction are hinged to the driving rod, a coarse positioning rod is arranged in the coarse positioning mechanism, the rear end of the coarse positioning rod is hinged to the driving rod, the coarse positioning rod is rotatably arranged, and the two angle iron-shaped positioning plates in each set of coarse positioning; the two thick positioning rods are close to two corners close to the rear part of the chassis; the precise positioning mechanism is arranged at the foremost coarse positioning mechanism in a matched mode and comprises three positioning columns located on the same circle, the upper ends of the positioning columns are conical, the three positioning columns are connected to cylinder rods of three precise positioning cylinders in the vertical direction respectively, the three precise positioning cylinders are limited on the diameter changing mechanism, the diameter changing mechanism comprises a diameter changing disc, three cam holes are formed in the diameter changing disc, a cylindrical inserting column is arranged at the lower portion of each precise positioning cylinder, each precise positioning cylinder is inserted into the cam hole through the inserting column, a radial sliding block is connected to the inserting column and is arranged in a corresponding radial groove in a sliding mode, long holes for the inserting columns to pass through are formed in the bottom surface of each radial groove, the bottom surface of each sliding block is supported on the bottom surface of each radial groove, the three radial grooves are fixedly connected to the positioning frame, a diameter changing driving shaft is fixedly connected to the center of each diameter changing disc, and the diameter changing driving shaft is, a reducing motor for driving the reducing driving shaft to rotate is arranged on the positioning frame, and the bottom of the positioning frame is rotationally connected to the base through a positioning frame shaft; three positioning columns in the fine positioning mechanism are vertically opposite to the three material supporting pipes;
the spot welding device comprises three spot welding machines which are respectively arranged at the positions of the three sets of coarse positioning devices in the back in a matching way, and the three spot welding machines are all connected on a corresponding three-axis system.
Further, the method comprises the following steps of; the plate chain conveying device comprises a plate chain conveyor, a plurality of groups of material pushing blocks are arranged on the plate chain of the plate chain conveyor at intervals, each group of material blocking blocks consists of two material pushing blocks in the left and right directions, and the material pushing blocks are fixedly connected with the plate chain; the two sides of the plate chain conveyor are provided with fixed supporting plates in the length direction, the bottom surfaces of the fixed supporting plates are not lower than the plane of the plate chain, the chassis is supported on the fixed supporting plates, when the plate chain conveyor acts, the material pushing block pushes the chassis to move forward, and the plate chain conveyor is connected to a control system for control.
Further, the method comprises the following steps of; the transfer frame rotate through transferring footpath frame axle and connect on the base, base fixed connection is on two axle moving mechanism A in plane, be provided with the drive on the base and transfer footpath frame pivoted transfer frame driving motor, smart positioning mechanism in the base connect on two axle plane moving system B, two axle plane moving mechanism all adopt lead screw drive's slip table mechanism, be provided with drive positioning frame axle pivoted positioning frame axle driving motor on the base.
Further, the method comprises the following steps of; the number of the vibrating discs is 2, the vibrating discs in the two groups are alternately arranged, the material passing seams are 6, the rotating driving device is a material cutting disc driving cylinder, one end of the material cutting disc driving cylinder is hinged on the rack, the end of a cylinder rod is connected with a joint bearing, and a shaft connected with the material cutting discs penetrates through the joint bearing; the material conveying device comprises two groups of discharging pipes, Y-shaped tee joints are arranged at the upper ends of material supporting pipes, every two discharging pipes in different groups are communicated with the same material supporting pipe through the Y-shaped tee joints by using hoses, a material passing seam is arc-shaped, the upper opening of each discharging pipe is a horn-shaped opening with a large upper part and a small lower part, a plurality of grooved wheels are arranged on the periphery of a material cutting disc, and material cutting sheets are located in grooves of the grooved wheels.
Further, the method comprises the following steps of; the rotary driving power device connected to the diameter adjusting plate is a diameter adjusting motor, a central shaft is fixedly connected to the center of the diameter adjusting plate, the diameter adjusting motor directly drives the central shaft or drives the central shaft through a transmission mechanism, and the transmission mechanism comprises belt transmission, gear transmission and chain transmission.
Further, the method comprises the following steps of; the material supporting device is a multi-petal elastic sheet, a screw through hole is formed in the middle of the multi-petal elastic sheet, when a screw falls down, a rod part penetrates through the through hole, and a head part falls on the elastic sheet, and the material supporting device is arranged in a material supporting pipe or arranged in the following mode: the cylinder frame is fixedly connected to the lower end of the material supporting pipe, a material passing hole communicated with the material supporting pipe is formed in the cylinder frame, and the material supporting device is arranged in the material passing hole.
Further, the method comprises the following steps of; the support material device include along circumference evenly distributed's at least three marble, seted up the marble hole on the pore wall of screw whereabouts route, the marble mouth is close to and holds in the palm material pipe lower extreme, the diameter in marble hole be less than the diameter of marble along the radial axle in marble hole, the radial outside top of marble is equipped with the spring, the bolt that connects in the marble hole through revolving in the spring outer end compresses tightly, when the screw fell down, the pole portion passed from the hole between the three marble, the head fell on the marble, the marble be spherical or ellipsoid shape.
Further, the method comprises the following steps of; a material sensing photoelectric switch is mounted on the machine frame near the tail end of the crack track and connected to the control system, a magnetic switch is arranged on the clamping jaw air cylinder, and the magnetic switch is connected to the control system.
Further, the method comprises the following steps of; the feeding device also comprises a distributing device, the vibrating disc distributing device comprises a main vibrating disc machine, the main vibrating disc machine is positioned above the vibrating discs, a hopper with three distributing holes at the bottom is arranged below a discharging channel of the main vibrating disc machine, the hopper is divided into three parts by three spacers, a material distribution hole is arranged between every two spacers, the hopper is connected with the output of a material distribution motor, a blanking chute is arranged below the blanking hole of the hopper, a baffle is arranged between every two blanking chutes and is positioned between the two blanking chutes, the baffle and the blanking chutes are fixedly connected on a conversion frame, the conversion frame is rotationally connected on a shaft taking the center of the hopper as an axis, the conversion frame is connected with a rotation driving device, the rotation driving device drives the conversion frame to rotate, and then the outlet of the discharging chute is switched to be connected with the inlets of the other group of 3 vibration discs.
Further, the method comprises the following steps of; the rear ends of two coarse positioning cylinders on one side of the chassis are hinged to the frame, the rear portion of the coarse positioning rod is V-shaped, the coarse positioning rod is rotatably connected to the frame, the rear ends of the two coarse positioning cylinders on the other side of the chassis are hinged to the adjusting plate, the adjusting plate is slidably connected to the frame in the left-right direction, the coarse positioning rod on the side is rotatably connected to the adjusting plate, a rack is fixedly connected to the adjusting plate and provided with a gear in a matched mode with the rack, and the gear is connected to an output shaft of an adjusting plate adjusting motor.
The invention has the positive and beneficial technical effects that: the system realizes automatic feeding, accurate hole entering and automatic spot welding of the screws, can automatically adjust the feeding positions according to the difference of the circle sizes formed by the three screw holes on the chassis, can adjust the positions of feeding equipment, positioning equipment and spot welding equipment according to the difference of the positions of the three screw holes, has strong adaptability of a production line, and can effectively reduce the cost and improve the efficiency when used for automatic welding of the screws on the chassis of the air conditioner.
Drawings
FIG. 1 is a schematic view of an aspect of the invention as a whole.
Fig. 2 is a schematic view of another aspect of the invention as a whole.
Fig. 3 is a schematic view of the feeding device from above.
Fig. 4 is a schematic view of the feeder apparatus from above with the overall vibratory pan machine process removed.
Fig. 5 is a partial schematic view of the lower portion of the cutting tray of the feeding device.
Fig. 6 is a partial schematic view of the feeding device with a portion of the shell of the vibrating disk portion removed.
Fig. 7 is a schematic view of the lower half of the feeding device.
Fig. 8 is a bottom schematic view of the bottom of the feeder.
Fig. 9 is a schematic view of a gage plate.
Fig. 10 is a schematic view of one of the material supporting devices.
Fig. 11 is one of the schematic views of the positioning device of the front portion.
Fig. 12 is a schematic view of the inner part of the positioning device from the outside.
Fig. 13 is a second schematic view of the positioning device at the front part.
FIG. 14 is one of the schematic views of the fine positioning mechanism.
FIG. 15 is a second schematic view of the fine positioning mechanism.
Detailed Description
In order to more fully explain the implementation of the present invention, examples of the implementation of the present invention are provided. These examples are merely illustrative of the present invention and do not limit the scope of the present invention.
The invention is explained in further detail in connection with the accompanying drawings, in which: 101: a feeding frame; 102: a total vibration pan machine; 103: a hopper; 104: a blanking chute; 105, vibrating the disc; 106: a planar biaxial movement mechanism; 107: cutting a material plate; 108: a discharging pipe; 109: a discharge channel of the total vibration disc machine; 110: a cloth motor; 111: a material distribution hole; 112: a baffle plate; 113: a spacer; 114: a crack track; 115: a blanking hole; 116: passing a material seam; 117: a bell mouth; 118: a grooved wheel; 119: the conversion frame rotates to drive the air cylinder; 120: a rotating frame; 121: a conversion frame; 122: the material cutting disc drives the air cylinder; 123: a knuckle bearing; 124: a Y-shaped tee joint; 125: a diameter adjusting plate; 126: a strip-shaped hole; 127: a material supporting pipe; 128: a cylinder frame; 129: an upper cylinder and a lower cylinder; 130: a clamping jaw cylinder; 131: a diameter-adjusting motor; 132: a synchronizing wheel connected with the central shaft of the diameter adjusting plate; 133: a synchronous belt driven by a diameter adjusting motor; 134: a base; 135: a diameter adjusting frame driving motor; 136: the diameter adjusting frame is rotatably connected with the base through a diameter adjusting frame shaft; 137: the diameter adjusting frame drives a synchronous belt driven by a motor; 138: a diameter adjusting frame; 139: a spring plate; 140: contour lines of the cam-shaped strip-shaped holes; 141: a marble; 142: a spring; 143: a bolt; 144: a hole through which the screw passes; 145: a guide plate; 146: a guide groove; 147: a guide block; a; 201: a planar biaxial movement mechanism B; 202: a coarse positioning cylinder A; 203: a coarse positioning cylinder B; 204: an angle iron-shaped positioning plate I; 205: a coarse positioning cylinder C; 206: a coarse positioning cylinder D; 207: a second angle iron-shaped positioning plate; 208: a frame of the positioning mechanism; 209: a first coarse positioning rod; 210: a second coarse positioning rod; 211: a drive plate; 212: an adjustment plate; 213: a rack; 214: a gear; 215: adjusting the motor; 216: a guide rail; 217: a fine positioning cylinder; 218: a positioning column; 210: a variable diameter disk; 220: a cam hole; 221: a radial slot; 222: a guide block; 223: inserting a column; 224: a long hole; 225: a positioning frame; 226: a variable diameter motor; 227: a synchronizing wheel connected with the reducing driving shaft; 228: a base; 229: a positioning frame shaft driving motor; 301: a spot welding machine A; 302: a spot welding machine B; 303: c, a spot welder C; 401: a plate chain conveyor; 402: a material pushing block; 501: a chassis.
As shown in the attached drawing, the automatic spot welding system for the screws of the air conditioner chassis comprises a screw feeding device, a positioning device and a spot welding device, wherein the devices are connected to a control system,
the screw feeding device comprises a feeding rack 101 and further comprises a vibration disc 105, the vibration disc is shown as a vibration disc, the vibration disc is connected to a control system, the vibration disc is of one group or multiple groups, the number of each group is 3, a crack track is arranged at the tail end of the vibration disc, the crack track is shown as 114, and sequenced screws are hung in the crack track.
A cutting disc 107 is rotatably arranged on the rack in the tail end of each crack track, a plurality of grooved wheels 118 are arranged on the periphery of the cutting disc, the cutting disc is positioned in the grooves of the grooved wheels, the tail end of each crack track is positioned at the edge of the cutting disc, one or more groups of blanking holes are formed in the cutting disc, each group of blanking holes consists of 3 blanking holes which are uniformly distributed, 115 is a blanking hole, a material passing seam which passes through the blanking hole is formed in the edge of the cutting disc, 116 is a material passing seam, and the material passing seam is arc-shaped. In this embodiment, the number of the vibration disks is 2, the vibration disks in the two groups are alternately arranged, and the material passing seams are 6. The material sensing photoelectric switch is mounted on the machine frame near the tail end of the crack track, connected to the control system and commonly used for detecting materials, and is widely applied and not shown in the drawing.
The material cutting disc is connected with a rotation driving device, the rotation driving device drives the material cutting disc to rotate back and forth, in the embodiment, the rotation driving device is a material cutting disc driving cylinder, 122 is a material cutting disc driving cylinder, one end of the cylinder is hinged on the rack, the end of a cylinder rod is connected with a joint bearing 123, and a shaft connected with the material cutting disc penetrates through the joint bearing; when the crack is communicated with the material passing crack, the rotary driving device drives the material cutting disc to rotate, and the screw finally enters the blanking hole 115 through the material passing crack 116. In the embodiment, 2 groups of 6 vibration discs are arranged, only one group of vibration discs works when working, the air cylinder can cut in screws from the crack tracks of the group of vibration discs to enter corresponding material passing cracks when advancing, and the air cylinder does not cut materials when retracting. When the vibrating discs are switched to another group, the air cylinders are changed to cut the screws into the corresponding overfeeding seams from the crack tracks of the corresponding vibrating discs when retracted, and no material is cut when advanced.
The blanking device is characterized in that a plurality of groups of blanking pipes are arranged on the rack below the blanking disc, in the embodiment, 2 groups of blanking pipes are arranged, each group of blanking pipes is composed of 3 blanking pipes which are uniformly distributed, in the figure, 108 the blanking pipes are arranged, the upper openings of the blanking pipes are horn mouths with large upper parts and small lower parts, 117 the horn mouths are shown, and the positions of the blanking pipes correspond to the positions of the blanking holes of the blanking disc which carries the screws to rotate up and down.
3 material supporting pipes which are positioned on the same circumference are arranged below the discharging pipes, 127 is shown as the material supporting pipes, the upper ends of the material supporting pipes are provided with Y-shaped tee joints, 124 is shown as the Y-shaped tee joints, and every two discharging pipes in different groups are communicated with the same material supporting pipe through the Y-shaped tee joints by using hoses. The hose can be an elastic hose, which is a common material and is not shown in the figures. Each blanking pipe in each group of blanking pipes is connected to one material supporting pipe through a blanking hose.
A material supporting device is arranged in the material supporting pipe close to the screw outlet or below the material supporting pipe. The material supporting device can be one of the following two types: one is that: the material supporting device is a multi-petal elastic sheet, 139 is an elastic sheet, a screw through hole is formed in the middle of the multi-petal elastic sheet, when a screw falls down, a rod part penetrates through the through hole, and a head part falls on the elastic sheet, the material supporting device is arranged in a material supporting pipe or is arranged in the following mode: the cylinder frame 128 is fixedly connected with the lower end of the material supporting pipe, a material passing hole communicated with the material supporting pipe is formed in the cylinder frame, and the material supporting device is arranged in the material passing hole. As shown in fig. 8, in this embodiment, the elastic sheet is installed in the material passing hole. The other is as follows: the support material device include along at least three marble of circumference evenly distributed, 141 shows to be the marble, has seted up the marble hole on the pore wall that the screw whereabouts was passed through, 144 shows to be the hole that the screw whereabouts was passed through, the marble mouth is close to and holds in the palm the material pipe lower extreme, the diameter in marble hole be less than the marble along the diameter of the radial axle in marble hole, the radial outside top of marble is equipped with spring 142, the spring outer end compresses tightly through the bolt 143 of swivelling joint in the marble hole, when the screw fell down, the pole portion passed from the hole between the three marble, the head fell on the marble, the marble be spherical or ellipsoid shape. When the marble is in an ellipsoid shape, the aperture of the marble hole is smaller than the length of the short axis of the ellipsoid.
The material supporting pipes are fixedly connected with a cylinder frame 128, the cylinder frame is fixedly connected with an upper air cylinder 129 and a lower air cylinder 129, cylinder rods of the upper air cylinder and the lower air cylinder are connected with clamping jaw air cylinders 130, clamping jaw holes of the clamping jaw air cylinders are located below the material supporting pipes, and the clamping jaw air cylinders are provided with magnetic switches which are connected to a control system. The magnetic switch can be used for detecting the stroke of the clamping jaw air cylinder, and when the clamping jaw air cylinder clamps the screw, the stroke is different from that when the clamping jaw air cylinder does not clamp the screw, so that whether the clamping jaw air cylinder clamps the screw or not can be judged according to a magnetic switch signal.
The diameter adjusting mechanism is matched with the material supporting pipe and comprises a diameter adjusting plate 125, a plurality of cam-shaped strip-shaped holes are uniformly distributed on the diameter adjusting plate, 126 is a cam-shaped strip-shaped hole, the peripheral contour line of a cam-shaped hole finger hole is a cam taking the diameter adjusting plate as the center, 126 is a cam-shaped strip-shaped hole, 140 is a peripheral contour line of a cam-shaped strip-shaped hole, the material supporting pipe is inserted in the cam-shaped strip-shaped hole, the diameter adjusting plate is rotatably arranged on a diameter adjusting frame 138 and is connected with a rotary driving power device, the rotary driving power device connected with the diameter adjusting plate is a diameter adjusting motor, 131 is a diameter adjusting motor, the center of the diameter adjusting plate is fixedly connected with a center shaft, a synchronizing wheel connected with the center shaft of the diameter adjusting plate 132, the diameter adjusting motor directly drives the center shaft or drives the center shaft through a transmission mechanism, and the transmission mechanism can also be a belt transmission mechanism, Gear drive, chain drive, adopt hold-in range and synchronous pulley drive in this embodiment. As shown in the figure, a diameter adjusting motor drives a central shaft to rotate and adjust through a synchronous belt driven by the diameter adjusting motor, the diameter adjusting motor drives a diameter adjusting plate to rotate through the rotation of the driving central shaft, three material supporting pipes synchronously move inwards or outwards in the radial direction of a circle taking the diameter adjusting plate as the center under the action of a cam-shaped strip-shaped hole, the three material supporting pipes are always positioned on the circle taking the center of the diameter adjusting plate as the center of a circle during or after adjustment,
the diameter adjusting frame 138 is fixedly connected with a radial guide plate 145, the radial guide plate is provided with a radial guide groove 146, each material supporting pipe is arranged in the guide groove in a matched and radial sliding mode or is arranged in the guide groove in a radial sliding mode through a guide block, and the rotary driving device, the rotary power driving device and each air cylinder are controlled through a control system. In this embodiment, each material supporting pipe is connected with a guide block 147, the guide blocks are slidably arranged in the guide grooves, and the lower surfaces of the guide blocks are supported on the bottom surfaces of the guide grooves. The diameter-adjusting frame 138 is rotatably connected to the base 134 through a diameter-adjusting frame shaft, the base is fixedly connected to the plane two-axis moving mechanism a106, and a diameter-adjusting frame driving motor 135 for driving the diameter-adjusting frame to rotate is arranged on the base.
More preferably, the feeding device further comprises a distributing device, the distributing device comprises a total vibrating disk machine 101, the total vibrating disk machine is located above each vibrating disk, a hopper 103 with three distributing holes at the bottom is arranged below a discharging channel 109 of the total vibrating disk machine, the hopper is internally divided into three parts by three spacers 113, a distributing hole 111 is arranged between every two spacers, the hopper is connected to the output of a distributing motor 110, a discharging chute 104 is arranged below the discharging hole of the hopper, a baffle 112 is arranged between every two discharging chutes, the baffle is located between the two discharging chutes, the baffle and the discharging chutes are fixedly connected to a conversion frame 121, the conversion frame 121 is rotatably connected to a shaft with the center of the hopper as the axis, a rotation driving device is connected to the conversion frame, after the rotation driving device drives the conversion frame to rotate, the outlet of the discharging chute is switched to be connected with the inlets of another group of 3 vibrating disks, in this embodiment, the rotation driving device employs a switching cylinder 119; one end of the conversion cylinder is hinged to the feeding rack, the other end of the conversion cylinder is hinged to the rotating frame 120, the rotating frame is rotatably connected to the feeding rack, and the conversion frame is fixedly connected with the rotating frame.
The positioning device is composed of at least 4 sets of coarse positioning mechanisms and 1 set of fine positioning mechanism which are distributed in the front-back direction, the foremost set of the 4 sets of coarse positioning mechanisms is matched with the fine positioning mechanism and used for accurately inserting screws into screw holes on the chassis, the three sets of the 4 sets of coarse positioning mechanisms are used for positioning during spot welding of three screws, the 4 sets of coarse positioning mechanisms are identical, and only the foremost set of coarse positioning mechanism is described in detail in combination with the drawing.
The coarse positioning mechanism comprises four coarse positioning cylinders positioned on two sides of the chassis, wherein the four coarse positioning cylinders are a coarse positioning cylinder A shown by 202, a coarse positioning cylinder B shown by 203, a coarse positioning cylinder C shown by 205 and a coarse positioning cylinder D shown by 206 in the figure; in the figure, two of the four coarse positioning cylinders are in the left-right direction and two are in the front-back direction, the coarse positioning cylinder A and the coarse positioning cylinder C are in the front-back direction, the coarse positioning cylinder B and the coarse positioning cylinder D are in the left-right direction, the cylinder rods of the two coarse positioning cylinders in the left-right direction are connected with angle iron-shaped positioning plates, in the figure, a first angle iron-shaped positioning plate and a second angle iron-shaped positioning plate are respectively connected on the cylinder rods of a coarse positioning cylinder B and a coarse positioning cylinder D, the cylinder rod ends of the two coarse positioning cylinders in the front and back directions are hinged on a driving rod, the figure 211 shows a driving rod, the coarse positioning mechanism is provided with a coarse positioning rod, the figures 209 and 210 show two coarse positioning rods, the rear ends of the coarse positioning rods are all hinged on the driving rod, the coarse positioning rods in the coarse positioning mechanisms are all hinged on the same driving rod, the coarse positioning rod is rotationally arranged, and two angle iron-shaped positioning plates in each set of coarse positioning mechanism are close to two corner parts at the front part of the chassis; the two thick locating rods are close to two corners close to the rear part of the chassis. The rear portion of thick locating lever be the V-arrangement, thick positioning mechanism in two thick location cylinder rear ends that lie in chassis one side articulate in the frame, thick locating lever rotates and connects in the frame, lie in two thick location cylinder rear ends of chassis opposite side and articulate on adjusting plate 212, adjusting plate 212 left right direction sliding connection in the frame, in this embodiment, adjusting plate passes through guide rail 216 left and right sliding connection in the frame, the thick locating lever of this side rotates and connects on adjusting plate 212, fixedly connected with rack 213 on adjusting plate, be provided with gear 214 with the rack cooperation, gear connection is on adjusting plate adjustment motor 215's output shaft.
The fine positioning mechanism is arranged at the foremost coarse positioning mechanism in a matched mode and comprises three positioning columns located on the same circle, 223 shows a positioning column, the upper ends of the positioning columns are conical, the conical shapes are shown in figures 14 and 15, the three positioning columns are respectively connected to cylinder rods of three fine positioning cylinders in the vertical direction, the three positioning columns in the fine positioning mechanism are opposite to three material supporting pipes in the vertical direction, 217 shows a fine positioning cylinder, the three fine positioning cylinders are limited on the diameter changing mechanism, the diameter changing mechanism comprises a diameter changing disc 219, three cam holes 220 are formed in the diameter changing disc, different names are designated for distinguishing, the contour line of the circumferential surface of each cam hole is a cam taking the diameter changing disc as the center, the cam holes have the same meaning as the cam-shaped strip-shaped holes, the contour line of the circumferential surface of each cam hole is also shown as 140, a cylindrical insertion column is arranged at the lower parts of the three fine positioning cylinders, 223 denotes an insert column, each fine positioning cylinder is inserted into a cam hole through the insert column, a radial slider is connected to the insert column, 222 denotes a radial slider, each radial slider is slidably arranged in a corresponding radial groove, 221 denotes a radial groove, three radial grooves are arranged above a variable diameter disc, a long hole 224 for the insert column to pass through is arranged on the bottom surface of the radial groove, the bottom surface of the slider is supported on the bottom surface of the radial groove, the three radial grooves are fixedly connected to a positioning frame 225, a variable diameter driving shaft is fixedly connected to the center of the variable diameter disc, the variable diameter driving shaft is rotatably connected with the positioning frame, a variable diameter motor 226 for driving the variable diameter driving shaft to rotate is arranged on the positioning frame, 227 denotes a synchronous pulley connected to the variable diameter driving shaft, the variable diameter motor drives the variable diameter driving shaft through a synchronous pulley, when the variable diameter motor rotates, the variable diameter disc is driven to rotate, under the action of the cam hole, the three insert columns move inwards or outwards in a radial direction of, the three inserted columns are always positioned on a circle which takes the center of the reducing disc as the center of a circle when or after being adjusted, which is the reducing adjustment which can be realized by a cam hole, the bottom of a positioning frame 225 is rotationally connected on a base 228 through a positioning frame shaft, a positioning frame shaft driving motor 229 which drives the positioning frame shaft to rotate is arranged on the base, and a synchronous belt wheel can be connected on the positioning frame shaft; the positioning frame shaft driving motor 229 drives the positioning frame to rotate through a synchronous belt, a base in the fine positioning mechanism is connected to a two-axis plane moving system B201, and the two-axis plane moving mechanism adopts a sliding table mechanism driven by a lead screw.
The spot welding device comprises three spot welding machines which are mature products and can be purchased from the market, the three spot welding machines are respectively matched and arranged at the rear three sets of coarse positioning devices, the three spot welding machines are all connected to a three-axis system, and the spot welding machines are provided with mature three-axis systems.
The automatic welding system further comprises a chassis conveying device, wherein the chassis conveying device comprises a plate chain conveyor 401, a plurality of groups of material pushing blocks are arranged on a plate chain of the plate chain conveyor at intervals, 402 the material pushing blocks are arranged, each group of material blocking blocks consists of two material pushing blocks in the left-right direction, and the material pushing blocks are fixedly connected with the plate chain; the two sides of the plate chain conveyor are provided with fixed supporting plates in the length direction, the bottom surfaces of the fixed supporting plates are not lower than the plane of the plate chain, the chassis is supported on the fixed supporting plates, when the plate chain conveyor acts, the material pushing block pushes the chassis to move forward, and the plate chain conveyor is connected to a control system for control. The chassis is pushed to advance through the material pushing block on the plate chain conveyor, so that stepping material pushing of each station is realized, the friction force between the plate chain and the chassis is not used for driving the chassis to advance, the plate chain conveyor can be manually fed, a robot can also be adopted, and the conveying belt can be provided with a material pushing device for pushing the chassis onto the plate chain conveyor.
The working process of the system is as follows: and (4) loading the screws into a main vibration disc machine, and enabling the screws to flow into a hopper from a feeding channel after being sequenced by the main vibration disc machine. The hopper is rotated under the drive of the distribution motor, and when the hopper is rotated to a position where the distribution hole is staggered with the blocking piece, the screw falls into the vibration disc from the corresponding discharging chute to complete distribution.
The screws in the vibrating disc are arranged on the crack tracks after being sequenced by the vibrating disc, the cylinder of the cutting disc is in one state, a group of material passing seams are communicated with the cracks on the group of crack tracks, at the moment, the screws can enter the material passing seams, the cylinder of the cutting disc acts to cut three screws into the material passing seams simultaneously, the screws on the crack tracks cannot enter the material discharging holes under the limit of the edge of the cutting disc in the rotating process of the cutting disc, the rotating position of the cutting disc is just right above the material discharging holes, so the three screws fall into the material discharging pipes, the heads of the screws fall onto the material supporting device after the material discharging pipes reach the material supporting pipes through the material discharging hose and the Y-shaped tee joint, at the moment, the upper cylinder and the lower cylinder move upwards, the clamping jaws act to clamp the rod parts of the screws, at the moment, the positioning device already fixes the position of the chassis, and the three positioning columns are positioned in the three screw holes, the upper and lower air cylinders move downwards to pull down each screw from the material supporting device and send the screw into a screw hole on the bottom plate below, the fine positioning air cylinder moves downwards while the upper and lower air cylinders move downwards, the positioning column moves out of the screw hole, and the control system controls the material cutting plate to continuously cut the next group of screws.
The chassis after the screws are inserted is conveyed backwards on the plate chain conveyor, the driving rod drives each rough positioning rod to enable the chassis on each station to finish rough positioning, spot welding of one screw is finished at each spot welding station, and due to the fact that the electrode and the head of the screw for spot welding are large, only rough positioning is needed during spot welding. And welding the screw and the chassis after the three spot welding stations.
When the model is changed, after the diameter of a circle formed by three screw holes on the air conditioning plate changes, the diameter adjusting motor drives the diameter adjusting plate to rotate, the upper part of the material supporting pipe is connected with the hose, so the adjusting plate rotates to push the material supporting pipe to move in the radial direction, the material supporting pipe cannot move in the circumferential direction due to the circumferential limit of the radial guide plate, and if the central positions of the three screw holes are not changed, the diameter adjusting plate and the diameter changing plate can be adjusted only by rotating. If the positions of the three screws are changed, the fine positioning mechanism and the material supporting pipe can be moved to corresponding positions through the plane two-axis moving mechanism A and the plane two-axis moving mechanism, the vertical alignment can be realized through the rotation of the diameter adjusting frame and the diameter reducing frame in the circumferential direction, and after the size of the chassis is changed, the position of the adjusting plate can be adjusted through the left and right directions of the gear rack, so that the coarse positioning mechanism can adapt to the change requirement in the width direction of the bottom plate.
When the screw model needs to be changed, the screws in the total vibration plate machine are all lowered, the conversion air cylinder is started, the conversion frame rotates to drive the discharging chute to rotate to the corresponding position of the other group of vibration plates, feeding is performed from the other group of vibration plates, and the work position of the material cutting plate for driving the air cylinder to cut materials is reversed, so that normal work can be realized.
After the embodiments of the present invention have been described in detail, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention, and it is intended that all simple modifications, equivalent changes and modifications made to the above embodiments based on the technical spirit of the present invention shall fall within the technical scope of the present invention, and the present invention shall not be limited to the embodiments illustrated in the description.

Claims (10)

1. Air conditioner chassis screw automatic spot welding system, including screw material feeding unit, positioner, spot welding device, above-mentioned each device is connected to control system, its characterized in that:
the screw feeding device comprises a vibrating disc, the vibrating disc is connected to a control system, the vibrating disc is in one group or multiple groups, the number of each group is 3, the tail end of the vibrating disc is provided with a crack track, sequenced screws are hung in the crack track, a cutting disc is rotatably arranged on a feeding frame in the tail end of each crack track, the tail end of each crack track is positioned at the edge of the cutting disc, one group or multiple groups of blanking holes are formed in the cutting disc, each group of blanking holes consists of 3 blanking holes which are uniformly distributed, a blanking slit which passes through the blanking holes is formed in the edge of the cutting disc, a rotation driving device is connected to the cutting disc and drives the cutting disc to rotate back and forth, when the cracks are communicated with the blanking slits, the rotation driving device drives the cutting disc to rotate, the screws finally enter the blanking holes from the blanking slit, multiple groups of blanking pipes are arranged on a feeding rack below the cutting disc, each group of blanking pipes consists of 3 blanking pipes which are uniformly distributed, the positions of the blanking pipes correspond to the positions of blanking holes after a blanking disc carries a screw to rotate up and down, 3 material supporting pipes which are positioned on the same circumference are arranged below the blanking pipes, each blanking pipe in each group of blanking pipes is connected to one material supporting pipe through a blanking hose, a material supporting device is arranged in the material supporting pipe close to the outlet of the screw or is arranged below the material supporting pipe, a cylinder frame is fixedly connected to each material supporting pipe, an upper cylinder and a lower cylinder are fixedly connected to the cylinder frame, a clamping jaw cylinder is connected to a cylinder rod of the upper cylinder and the lower cylinder, a clamping jaw hole of the clamping jaw cylinder is positioned below the material supporting pipe, a diameter adjusting mechanism is arranged in a matching way with the material supporting pipe and comprises a diameter adjusting plate, the diameter adjusting plate is uniformly distributed on the diameter adjusting plate and is provided with a plurality of cam-shaped strip holes, the material supporting pipes are inserted into the strip-, the diameter adjusting frame is fixedly connected with a radial guide plate, the radial guide plate is provided with a radial guide groove, each material supporting pipe is arranged in the guide groove in a sliding manner in a radial direction in a matching manner or in the guide groove in a sliding manner in a radial direction through a guide block, and the rotary driving device, the rotary power driving device and each air cylinder are controlled by a control system;
the positioning device comprises 4 sets of coarse positioning mechanisms and 1 set of fine positioning mechanism which are at least distributed front and back, the coarse positioning mechanism comprises four coarse positioning cylinders which are positioned at two sides of the chassis, two of the four coarse positioning cylinders are in the left-right direction, and two of the four coarse positioning cylinders are in the front-back direction, angle iron-shaped positioning plates are connected to cylinder rods of the two coarse positioning cylinders in the left-right direction, the end parts of the cylinder rods of the two coarse positioning cylinders in the front-back direction are hinged to the driving rod, a coarse positioning rod is arranged in the coarse positioning mechanism, the rear end of the coarse positioning rod is hinged to the driving rod, the coarse positioning rod is rotatably arranged, and the two angle iron-shaped positioning plates in each set of coarse positioning; the two thick positioning rods are close to two corners close to the rear part of the chassis; the precise positioning mechanism is arranged at the foremost coarse positioning mechanism in a matched mode and comprises three positioning columns located on the same circle, the upper ends of the positioning columns are conical, the three positioning columns are connected to cylinder rods of three precise positioning cylinders in the vertical direction respectively, the three precise positioning cylinders are limited on the diameter changing mechanism, the diameter changing mechanism comprises a diameter changing disc, three cam holes are formed in the diameter changing disc, a cylindrical inserting column is arranged at the lower portion of each precise positioning cylinder, each precise positioning cylinder is inserted into the cam hole through the inserting column, a radial sliding block is connected to the inserting column and is arranged in a corresponding radial groove in a sliding mode, long holes for the inserting columns to pass through are formed in the bottom surface of each radial groove, the bottom surface of each sliding block is supported on the bottom surface of each radial groove, the three radial grooves are fixedly connected to the positioning frame, a diameter changing driving shaft is fixedly connected to the center of each diameter changing disc, and the diameter changing driving shaft is, a reducing motor for driving the reducing driving shaft to rotate is arranged on the positioning frame, and the bottom of the positioning frame is rotationally connected to the base through a positioning frame shaft; three positioning columns in the fine positioning mechanism are vertically opposite to the three material supporting pipes;
the spot welding device comprises three spot welding machines which are respectively arranged at the positions of the three sets of coarse positioning devices in the back in a matching way, and the three spot welding machines are all connected on a corresponding three-axis system.
2. The air conditioner chassis screw stitch welding system of claim 1, wherein: the plate chain conveying device comprises a plate chain conveyor, a plurality of groups of material pushing blocks are arranged on the plate chain of the plate chain conveyor at intervals, each group of material blocking blocks consists of two material pushing blocks in the left and right directions, and the material pushing blocks are fixedly connected with the plate chain; the two sides of the plate chain conveyor are provided with fixed supporting plates in the length direction, the bottom surfaces of the fixed supporting plates are not lower than the plane of the plate chain, the chassis is supported on the fixed supporting plates, when the plate chain conveyor acts, the material pushing block pushes the chassis to move forward, and the plate chain conveyor is connected to a control system for control.
3. The air conditioner chassis screw stitch welding system of claim 1, wherein: the diameter adjusting frame is rotatably connected onto the base through a diameter adjusting shaft, the base is fixedly connected onto the plane two-shaft moving mechanism A, a driving diameter adjusting frame driving motor for driving the diameter adjusting frame to rotate is arranged on the base, the base in the fine positioning mechanism is connected onto the plane two-shaft moving system B, the plane two-shaft moving mechanism adopts a sliding table mechanism driven by a lead screw, and a positioning frame shaft driving motor for driving the positioning frame shaft to rotate is arranged on the base.
4. The air conditioner chassis screw stitch welding system of claim 1, wherein: the number of the vibrating discs is 2, the vibrating discs in the two groups are alternately arranged, the material passing seams are 6, the rotating driving device is a material cutting disc driving cylinder, one end of the material cutting disc driving cylinder is hinged on the rack, the end of a cylinder rod is connected with a joint bearing, and a shaft connected with the material cutting discs penetrates through the joint bearing; the material conveying device comprises two groups of discharging pipes, Y-shaped tee joints are arranged at the upper ends of material supporting pipes, every two discharging pipes in different groups are communicated with the same material supporting pipe through the Y-shaped tee joints by using hoses, a material passing seam is arc-shaped, the upper opening of each discharging pipe is a horn-shaped opening with a large upper part and a small lower part, a plurality of grooved wheels are arranged on the periphery of a material cutting disc, and material cutting sheets are located in grooves of the grooved wheels.
5. The air conditioner chassis screw stitch welding system of claim 1, wherein: the rotary driving power device connected to the diameter adjusting plate is a diameter adjusting motor, a central shaft is fixedly connected to the center of the diameter adjusting plate, the diameter adjusting motor directly drives the central shaft or drives the central shaft through a transmission mechanism, and the transmission mechanism comprises belt transmission, gear transmission and chain transmission.
6. The air conditioner chassis screw stitch welding system of claim 1, wherein: the material supporting device is a multi-petal elastic sheet, a screw through hole is formed in the middle of the multi-petal elastic sheet, when a screw falls down, a rod part penetrates through the through hole, and a head part falls on the elastic sheet, and the material supporting device is arranged in a material supporting pipe or arranged in the following mode: the cylinder frame is fixedly connected to the lower end of the material supporting pipe, a material passing hole communicated with the material supporting pipe is formed in the cylinder frame, and the material supporting device is arranged in the material passing hole.
7. The air conditioner chassis screw stitch welding system of claim 1, wherein: the support material device include along circumference evenly distributed's at least three marble, seted up the marble hole on the pore wall of screw whereabouts route, the marble mouth is close to and holds in the palm material pipe lower extreme, the diameter in marble hole be less than the diameter of marble along the radial axle in marble hole, the radial outside top of marble is equipped with the spring, the bolt that connects in the marble hole through revolving in the spring outer end compresses tightly, when the screw fell down, the pole portion passed from the hole between the three marble, the head fell on the marble, the marble be spherical or ellipsoid shape.
8. The air conditioner chassis screw stitch welding system of claim 1, wherein: a material sensing photoelectric switch is mounted on the machine frame near the tail end of the crack track and connected to the control system, a magnetic switch is arranged on the clamping jaw air cylinder, and the magnetic switch is connected to the control system.
9. The air conditioner chassis screw stitch welding system of claim 1, wherein: the feeding device also comprises a distributing device, the vibrating disc distributing device comprises a main vibrating disc machine, the main vibrating disc machine is positioned above the vibrating discs, a hopper with three distributing holes at the bottom is arranged below a discharging channel of the main vibrating disc machine, the hopper is divided into three parts by three spacers, a material distribution hole is arranged between every two spacers, the hopper is connected with the output of a material distribution motor, a blanking chute is arranged below the blanking hole of the hopper, a baffle is arranged between every two blanking chutes and is positioned between the two blanking chutes, the baffle and the blanking chutes are fixedly connected on a conversion frame, the conversion frame is rotationally connected on a shaft taking the center of the hopper as an axis, the conversion frame is connected with a rotation driving device, the rotation driving device drives the conversion frame to rotate, and then the outlet of the discharging chute is switched to be connected with the inlets of the other group of 3 vibration discs.
10. The air conditioner chassis screw stitch welding system of claim 1, wherein: the rear ends of two coarse positioning cylinders on one side of the chassis are hinged to the frame, the rear portion of the coarse positioning rod is V-shaped, the coarse positioning rod is rotatably connected to the frame, the rear ends of the two coarse positioning cylinders on the other side of the chassis are hinged to the adjusting plate, the adjusting plate is slidably connected to the frame in the left-right direction, the coarse positioning rod on the side is rotatably connected to the adjusting plate, a rack is fixedly connected to the adjusting plate and provided with a gear in a matched mode with the rack, and the gear is connected to an output shaft of an adjusting plate adjusting motor.
CN202010008737.3A 2020-01-06 2020-01-06 Automatic spot welding system for air conditioner chassis screw Pending CN110919152A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010008737.3A CN110919152A (en) 2020-01-06 2020-01-06 Automatic spot welding system for air conditioner chassis screw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010008737.3A CN110919152A (en) 2020-01-06 2020-01-06 Automatic spot welding system for air conditioner chassis screw

Publications (1)

Publication Number Publication Date
CN110919152A true CN110919152A (en) 2020-03-27

Family

ID=69854350

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010008737.3A Pending CN110919152A (en) 2020-01-06 2020-01-06 Automatic spot welding system for air conditioner chassis screw

Country Status (1)

Country Link
CN (1) CN110919152A (en)

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