Automatic feeding system of spot welding machine

Abstract

The utility model provides an automatic feeding system of a spot welder, which comprises an automatic feeding device and a control system, the automatic feeding device comprises a main body frame, a feeding part, a welding adjusting part and a discharging part, the main body frame comprises a base, a welding seat, a feeding seat, a transfer carrier plate and a discharging carrier plate, the feeding part comprises a backing material feeding mechanism and a jacking material feeding mechanism, the welding adjusting part comprises a welding mechanism and a fixing mechanism, and the discharging part comprises an auxiliary mechanism and a transferring mechanism. Compared with the design of a traditional rotating disc, the labor intensity is obviously reduced, and the feeding efficiency is greatly improved; the upper-layer space on the front side of the spot welding machine is not occupied, potential safety hazards are obviously reduced, and maintenance and adjustment are convenient while the safety coefficient is improved; the adaptability is high, the device can be suitable for production of various products, and the overhaul difficulty and the production cost are remarkably reduced.

Description

Technical Field

[0001] The utility model relates to the field of spot welding machines, in particular to an automatic feeding system for spot welding machines. Background Art

[0002] Spot welding is to assemble and press the workpieces to be welded between two electrodes, then pass a large instantaneous current through them, and use the high temperature generated by the contact resistance between the weldments to heat melt the parent material to form a weld spot to achieve the purpose of welding.

[0003] When the spot welding machine is used, manual loading or mechanical feeding is mostly adopted. Common mechanical feeding devices include a fully automatic spot welding machine feeding mechanism disclosed in Chinese patent CN220161494U. The cylinder slides and retracts inside the connecting block according to the special-shaped structure on the top of the floating nut limiting shell. The cylinder can be tightly fitted with the top of the floating nut limiting shell by shortening the spring. When negative pressure is generated between the cylinder and the floating nut limiting shell, the setting of gas infiltration can be avoided, so that the feeding mechanism can easily adsorb the floating nut limiting shell, thereby improving the stability of the floating nut limiting shell adsorption and avoiding falling. The motor is started to drive the turntable to rotate, and the two rotating rods rotate accordingly, so that the cylinder and the connecting block on the rotating rod rotate on the turntable. At the same time, when the slide moves, the motor is turned on to drive the turntable to rotate, thereby changing the angular position of the connecting block.

[0004] The feeding mechanism of the spot welding machine mentioned above still has the following defects in practical application:

[0005] First, the design of the turntable makes the feeding efficiency low;

[0006] Second, it occupies the upper space in front of the spot welding machine, which poses certain safety hazards;

[0007] Third, low adaptability and high maintenance difficulty lead to increased production costs. Utility Model Content

[0008] The utility model provides an automatic feeding system for a spot welding machine, which can effectively solve the problems mentioned in the background technology.

[0009] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0010] An automatic feeding system for a spot welding machine comprises an automatic feeding device and a control system. The automatic feeding device comprises a main frame, a feeding part, a welding adjustment part and a discharge part.

[0011] Specifically, the main frame includes a base, a welding base, a feeding base, a transfer carrier and a discharge carrier. The base includes an "h"-shaped hollow container. The welding base, the feeding base, the transfer carrier and the discharge carrier are arranged on the base through pillars. The welding base includes a rectangular hollow container 1, on which a "convex" through hole, a rectangular through hole and a mounting groove are arranged on the upper bottom plate, a "T"-shaped through hole is arranged on the lower bottom plate, and a strip through hole 2 is arranged on the rear side plate; the rectangular through hole is located in the mounting groove; the lower end of the strip through hole 2 coincides with one end of the "T"-shaped through hole. The feeding base is located on the right side of the welding base, and includes a rectangular hollow container 2, on which a strip through hole 3 is arranged on the upper bottom plate. The transfer carrier is located above the feeding base and the welding base, and a strip through hole 4 is arranged thereon. The discharge carrier is located above the feeding base.

[0012] Specifically, the feeding part includes a bottom material feeding mechanism and a top material feeding mechanism.

[0013] More specifically, the bottom material supply mechanism includes a chain conveyor, a screw stepper motor, a movable carrier, an electric telescopic rod and a clamping motor. The chain conveyor is arranged in the material feeding seat, and circular positioning columns are arranged equidistantly on the chain plate; the screw stepper motor is arranged on the transfer carrier; the movable carrier is slidably connected to the transfer carrier through a slide rail, and its lower bottom surface is connected to the nut seat of the screw stepper motor, and the lower bottom surface is also arranged on the installation carrier through a connecting column; the installation carrier is located below the transfer carrier; the electric telescopic rod is arranged on the lower bottom surface of the installation carrier; the clamping motor is arranged on the movable end of the electric telescopic rod.

[0014] More specifically, the ejector feeding mechanism includes a storage box structure, a push rod motor, an adjustment plate, a screw lifter, a push rod motor and a connecting roller. The storage box structure includes a "C"-shaped through pipe, a "ㅠ"-shaped limit block and a movable gate; a "U"-shaped opening through groove is provided on the bottom plate of the "C"-shaped through pipe; strip-shaped through holes five are symmetrically provided on the "C"-shaped through pipe; a movable gate is plugged into the strip-shaped through hole five; a push rod motor is symmetrically provided on the upper bottom plate of the welding seat, and a "T"-shaped positioning plate is provided on its movable end; the "ㅠ"-shaped limit block is symmetrically provided on the side plate of the "C"-shaped through pipe, and is provided on the push rod motor through a fixed plate. On the movable end; the screw lifter 1 is arranged in the welding seat, and a "C"-shaped adjustment plate is arranged on its movable end; the "C"-shaped adjustment plate is slidably connected in the rectangular through hole; the push rod motor 2 is arranged on the upper bottom plate of the welding seat; the connecting roller shafts are symmetrically arranged on the upper bottom plate of the welding seat, and are located behind the push rod motor 2; the spacing between the connecting roller shafts is adapted to the "C"-shaped adjustment plate; a rectangular push block is arranged on the movable end of the push rod motor 2; the rectangular push block is slidably connected in the "C"-shaped adjustment plate.

[0015] Specifically, the welding adjustment part includes a welding mechanism and a fixing mechanism.

[0016] More specifically, the welding mechanism includes an adjustment structure and a welding table structure. The adjustment structure includes a screw stepper motor 2, a movable carrier plate 2, a screw lifter 2 and a strip carrier plate; the screw lifter 2 is arranged in the welding seat; the strip carrier plate is arranged on the movable end of the screw lifter 2; the screw stepper motor 2 is arranged on the strip carrier plate; the movable carrier plate 2 is arranged on the nut seat of the screw stepper motor 2, including a "U"-shaped plate 1. The welding table structure includes a screw stepper motor 3, a welding carrier plate, a stepper motor and a "T"-shaped pressure plate; the screw stepper motor 3 is arranged on the movable carrier plate 2; the welding carrier plate includes a "U"-shaped plate 2, which is arranged on the nut seat of the screw stepper motor 3. A circular pin hole is arranged on the welding carrier plate; the stepper motor is arranged on the lower bottom surface of the welding carrier plate through a mounting frame; the "T"-shaped pressure plate is arranged on the rotating shaft of the stepper motor, and its cross plate is located above the welding carrier plate.

[0017] More specifically, the fixing mechanism includes a screw stepper motor 4, a movable carrier plate 4, an electric telescopic rod 3 and a clamping claw motor 3. The screw stepper motor 4 and the slide bar are arranged on the welding seat; the movable carrier plate 4 is slidably connected to the slide bar, and its bottom surface is connected to the nut seat of the screw stepper motor 4; the electric telescopic rod 3 is arranged on the movable carrier plate 4; and the clamping claw motor 3 is arranged on the movable end of the electric telescopic rod 3.

[0018] Specifically, the unloading part includes an auxiliary mechanism and a transfer mechanism. The auxiliary mechanism includes a push rod motor 3, a vacuum suction cup and a compressor; the push rod motor 3 is arranged in the welding seat through a mounting frame; the vacuum suction cup is arranged on the movable end of the push rod motor 3; the vacuum suction cup and the compressor are connected through an electromagnetic valve. The transfer mechanism includes an electric telescopic rod 2, a push rod motor 4 and a clamping claw motor 2; the electric telescopic rod 2 is arranged on the lower bottom surface of the unloading carrier; the push rod motor 4 is arranged on the movable end of the electric telescopic rod 2; the electric telescopic rod 2 and the push rod motor 4 are in a "U" shape; the clamping claw motor 2 is arranged on the movable end of the push rod motor 4.

[0019] Specifically, the control system includes a control mechanism, a feedback mechanism and a PLC controller. The control mechanism includes a start switch, a fixed switch, an adjustment switch, a feed switch and a pause switch. The feedback mechanism includes several distance sensor modules and a photoelectric counting sensor module.

[0020] Furthermore, an electromagnet is added to the movable end of the push rod motor 4.

[0021] Advantages compared to the prior art:

[0022] In the utility model, the following functions are realized through the overall arrangement of the main frame, the feeding part, the welding adjustment part, the unloading part and the control system:

[0023] Firstly, the setting of the feeding part significantly reduces the labor intensity and greatly improves the feeding efficiency compared with the traditional turntable design.

[0024] Secondly, compared with the traditional turntable design, it does not occupy the upper space on the front side of the spot welding machine, which greatly reduces safety hazards, improves the safety factor and facilitates maintenance and adjustment.

[0025] Third, compared with the traditional turntable design, this system has high adaptability and can be adapted to the production of a variety of products, significantly reducing maintenance difficulty and production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0027] Figure 2 This is a schematic diagram of a partial cross-sectional structure of the utility model;

[0028] Figure 3 This is a schematic diagram of a partially enlarged cross-sectional structure of the utility model;

[0029] Figure 4 This is a schematic diagram of the top view structure of the utility model;

[0030] Figure 5 This is a schematic diagram of the partial cross-sectional structure of the utility model from top view Figure 1 ;

[0031] Figure 6 This is a schematic diagram of the partial cross-sectional structure of the utility model from top view Figure 2 ;

[0032] Figure 7 This is a schematic diagram of the partial cross-sectional structure of the utility model from top view Figure 3 ;

[0033] Figure 8 The utility model system structure diagram Figure 1 ;

[0034] Fig. 9 The utility model system structure diagram Figure 2 .

[0035] In the figure: 101. Base, 102. Welding seat, 103. "T" shaped through hole, 104. Strip through hole 2, 105. Feeding seat, 106. Transfer carrier, 107. Unloading carrier, 201. Chain conveyor, 202. Screw stepper motor 1, 203. Electric telescopic rod 1, 204. Gripper motor 1, 205. Storage box structure, 206. Push rod motor 1, 207. Screw lift 1, 208. Push rod motor 2, 209. Connecting roller, 301. Screw stepper motor 2, 302. Screw lift 2, 303. Movable carrier 2, 304. Screw stepper motor 3, 305. Welding carrier, 306. Stepper motor, 307. "T" shaped pressure plate, 308. Screw stepper motor 4, 309. Electric telescopic rod 3, 310. Gripper motor 3, 401. Push rod motor 3, 402. Electric telescopic rod 2, 403. Gripper motor 2, 404. Push rod motor 4, 501. Spot welding machine. DETAILED DESCRIPTION

[0036] Example 1, refer to the attached Figure 1-9 , an automatic feeding system for a spot welding machine, including an automatic feeding device and a control system. The automatic feeding device includes a main frame, a feeding part, a welding adjustment part, and a unloading part.

[0037] The main frame includes a base 101 , a welding seat 102 , a feeding seat 105 , a transfer carrier 106 and a discharge carrier 107 .

[0038] The base 101 comprises an "h"-shaped hollow container.

[0039] The welding seat 102, the feeding seat 105, the transfer carrier 106, and the unloading carrier 107 are arranged on the base 101 through pillars.

[0040] The welding seat 102 includes a rectangular hollow container.

[0041] A convex through hole, a rectangular through hole and a mounting groove are arranged on the upper bottom plate of the rectangular hollow container.

[0042] The rectangular through hole is located in the mounting groove.

[0043] A "T"-shaped through hole 103 is provided on the lower bottom plate of the rectangular hollow container 1.

[0044] A second strip-shaped through hole 104 is provided on the rear side plate of the first rectangular hollow container.

[0045] The lower end of the second strip-shaped through hole 104 overlaps with one end of the “T”-shaped through hole 103 .

[0046] The feeding seat 105 is located on the right side of the welding seat 102 .

[0047] The feeding seat 105 includes a rectangular hollow container 2.

[0048] A strip-shaped through hole three is arranged on the upper bottom plate of the rectangular hollow container two.

[0049] The transfer carrier 106 is located above the feeding seat 105 and the welding seat 102 .

[0050] The transfer carrier 106 is provided with four strip-shaped through holes.

[0051] The unloading carrier plate 107 is located above the feeding seat 105 .

[0052] The material feeding part includes a bottom material feeding mechanism and a top material feeding mechanism.

[0053] The bottom material supply mechanism includes a chain conveyor belt 201, a screw stepping motor 202, a movable carrier plate 1, an electric telescopic rod 203 and a clamping claw motor 204.

[0054] The chain conveyor 201 is disposed in the feeding seat 105 .

[0055] Circular positioning posts are equidistantly arranged on the chain plates of the chain conveyor 201 .

[0056] The screw stepper motor 202 is disposed on the transfer carrier 106 .

[0057] The movable carrier plate 1 is slidably connected to the transfer carrier plate 106 via a slide rail.

[0058] The lower bottom surface of the movable carrier plate 1 is connected to the nut seat of the screw stepping motor 1 202.

[0059] The bottom surface of the movable carrier plate 1 is disposed on the mounting carrier plate through connecting columns, and the mounting carrier plate is located below the transfer carrier plate 106 .

[0060] The electric telescopic rod 203 is arranged on the lower bottom surface of the mounting plate.

[0061] The clamping jaw motor 204 is arranged on the movable end of the electric telescopic rod 203 .

[0062] The material feeding mechanism includes a storage box structure 205, a push rod motor 1 206, an adjustment plate, a screw lift 1 207, a push rod motor 208 and a connecting roller 209.

[0063] The storage box structure 205 includes a “C”-shaped through pipe, a “ㅠ”-shaped limit block and a movable gate plate 1.

[0064] A "U"-shaped opening through groove is arranged on the bottom plate of the "C"-shaped through pipe.

[0065] The "C"-shaped through pipe is symmetrically provided with strip-shaped through holes five.

[0066] The movable gate plate 1 is plugged into the strip-shaped through hole 5.

[0067] The push rod motor 206 is symmetrically arranged on the upper bottom plate of the welding seat 102.

[0068] A "T"-shaped positioning plate is arranged on the movable end of the push rod motor 206.

[0069] The "ㅠ"-shaped limit block is symmetrically arranged on the side plate of the "C"-shaped through pipe.

[0070] The "ㅠ"-shaped limit block is arranged on the movable end of the push rod motor 206 through a fixed plate.

[0071] The screw lift 207 is arranged in the welding seat 102; a "C"-shaped adjustment plate is arranged on the movable end of the screw lift 207.

[0072] The "C"-shaped adjustment plate is slidably connected in the rectangular through hole.

[0073] The push rod motor 208 is disposed on the upper bottom plate of the welding seat 102 .

[0074] The connecting roller shaft 209 is symmetrically arranged on the upper bottom plate of the welding seat 102 and is located behind the second push rod motor 208 .

[0075] The spacing between the engaging rollers 209 is adapted to the "C"-shaped adjusting plate.

[0076] A rectangular parallelepiped push block is arranged on the movable end of the push rod motor 208 .

[0077] The rectangular push block is slidably connected in the "C"-shaped adjustment plate.

[0078] The welding adjustment part includes a welding mechanism and a fixing mechanism.

[0079] The welding mechanism comprises an adjusting structure and a welding table structure.

[0080] The adjustment structure includes a screw stepping motor 301, a movable carrier 303, a screw lift 302 and a strip carrier.

[0081] The second screw lift 302 is disposed in the welding seat 102 .

[0082] The strip carrier is arranged on the movable end of the screw lift 2 302 .

[0083] The screw stepper motor 2 301 is disposed on the strip carrier.

[0084] The second movable carrier plate 303 is disposed on the nut seat of the second screw stepping motor 301 .

[0085] The movable carrier plate 2 303 includes a “U”-shaped plate 1.

[0086] The welding platform structure includes a screw stepper motor 304, a welding carrier plate 305, a stepper motor 306 and a “T”-shaped pressing plate 307.

[0087] The screw stepper motor 304 is disposed on the movable carrier plate 2 303 .

[0088] The welding carrier plate 305 includes a second U-shaped plate.

[0089] The welding carrier plate 305 is disposed on the nut seat of the screw stepping motor 3 304 .

[0090] A circular pin hole is provided on the welding carrier plate 305 .

[0091] The stepper motor 306 is mounted on the bottom surface of the welding carrier 305 via a mounting frame.

[0092] The “T”-shaped pressing plate 307 is disposed on the rotating shaft of the stepping motor 306 ; and the horizontal plate of the “T”-shaped pressing plate 307 is located above the welding carrier plate 305 .

[0093] The fixing mechanism includes a screw stepping motor four 308, a movable carrier plate four, an electric telescopic rod three 309 and a clamping claw motor three 310.

[0094] The screw stepper motor 4 308 and the slide rod are arranged on the welding seat 102.

[0095] The movable carrier plate 4 is slidably connected to the slide bar.

[0096] The bottom surface of the movable carrier plate 4 is connected to the nut seat of the screw stepper motor 4 308.

[0097] The electric telescopic rod 309 is arranged on the movable carrier plate 4.

[0098] The clamping jaw motor 310 is arranged on the movable end of the electric telescopic rod 309.

[0099] The unloading part includes an auxiliary mechanism and a transfer mechanism.

[0100] The auxiliary mechanism includes a push rod motor 3 401, a vacuum suction cup and a compressor.

[0101] The push rod motor 3 401 is arranged in the welding seat 102 through a mounting frame.

[0102] The vacuum suction cup is arranged on the movable end of the push rod motor 3 401, and the vacuum suction cup is used to grasp the welding product.

[0103] The vacuum suction cup and the compressor are connected via a solenoid valve.

[0104] The transfer mechanism includes an electric telescopic rod 2 402 , a push rod motor 404 and a clamping claw motor 2 403 .

[0105] The electric telescopic rod 2 402 is arranged on the lower bottom surface of the unloading carrier plate 107 .

[0106] The push rod motor 404 is arranged on the movable end of the electric telescopic rod 2 402 .

[0107] The electric telescopic rod 2 402 and the push rod motor 404 are in a "U" shape.

[0108] The second clamping jaw motor 403 is arranged on the movable end of the fourth push rod motor 404.

[0109] The control system includes a control mechanism, a feedback mechanism and a PLC controller.

[0110] The control mechanism includes a start switch, a fixing switch, an adjustment switch, a feeding switch and a pause switch.

[0111] The start switch, the fixing switch, the adjusting switch, the feeding switch and the pause switch are arranged on the side plate of the feeding seat 105 .

[0112] The feedback mechanism includes a distance sensor module one, a distance sensor module two, a distance sensor module three and a photoelectric counting sensor module.

[0113] The distance sensor module 1 is equidistantly disposed on the lower bottom surface of the transfer carrier 106 to assist the PLC controller in detecting the position of the base welding part.

[0114] The distance sensor modules are equidistantly arranged on the welding table structure to assist the PLC controller in detecting the position of the base welding parts.

[0115] The distance sensor module three is arranged on the push rod motor three 401, and is used to assist the PLC controller to detect the position of the product (the welding process is finished).

[0116] The photoelectric counting sensor module is disposed on the welding seat 102 to assist the PLC controller in detecting the working frequency of the spot welding machine 501 .

[0117] Working principle and usage:

[0118] The first step is pre-setting:

[0119] The system is installed below the welding head of the spot welding machine 501.

[0120] Press the start switch to perform a no-load test.

[0121] The collection frame is placed on the base 101 , below the electric telescopic rod 2 402 of the unloading carrier 107 .

[0122] Place the upper layer of welded parts in order into the storage box structure 205. Then install the storage box structure 205 into the installation groove, press the fixing switch, and the PLC controller outputs a signal to the push rod motor 1 206, which starts and drives the "T"-shaped positioning plate into the "ㅠ"-shaped limit block to complete the fixing of the storage box structure 205.

[0123] Pull out the movable gate plate 1, and by pressing the adjustment switch, the PLC controller outputs a signal to the screw lift 1 207, and the screw lift 1 207 drives the "C"-shaped adjustment plate to move in an orderly manner, facilitating the single operation of the push rod motor 2 208 to push out an upper layer of welded parts.

[0124] The base parts to be welded are placed on the chain conveyor 201 in an orderly manner.

[0125] Step 2: Welding:

[0126] When the feeding switch is pressed, the PLC controller outputs a signal to the chain conveyor 201, and the chain conveyor 201 drives the base part to be welded to move below the distance sensor module 1; the distance sensor module 1 outputs a signal to the PLC controller, and the PLC controller outputs a signal to the screw stepper motor 1 202, the electric telescopic rod 1 203, and the clamping jaw motor 1 204. The screw stepper motor 1 202 drives the electric telescopic rod 1 203 to move above the base part to be welded, and the electric telescopic rod 1 203 is delayed to start; then, the clamping jaw motor 1 204 clamps the base part to be welded, and with the cooperation of the screw stepper motor 1 202, the electric telescopic rod 1 203, and the clamping jaw motor 1 204, the base part to be welded is placed on the welding table structure.

[0127] The distance sensor module 2 outputs a signal to the PLC controller, and the PLC controller outputs a signal to the stepper motor 306, which drives the "T"-shaped pressing plate 307 to rotate 90 degrees to complete the fixation of the base to be welded. After that, the screw stepper motor 1 202, the electric telescopic rod 1 203, and the clamping jaw motor 1 204 are reset.

[0128] The PLC controller delays the output signal to the screw stepper motor 2 301 , the screw lift 2 302 , the screw stepper motor 4 308 , the electric telescopic rod 3 309 , the clamping jaw motor 3 310 , and the push rod motor 2 208 .

[0129] The second screw stepper motor 301 drives the second movable carrier plate 303 to move to the rear of the second push rod motor 208.

[0130] The screw stepper motor 4 308 drives the electric telescopic rod 3 309 and the clamping jaw motor 3 310 to run to the rear of the push rod motor 208.

[0131] The electric telescopic rod 309 drives the clamping motor 310 to move above the movable carrier plate 2 303 (above the welding point of the base welded parts). The push rod motor 208 delays to push the upper welded parts to the area where the clamping motor 310 is located, and the clamping motor 310 is started to fix the position of the upper welded parts.

[0132] The screw stepper motor 2 301 and the screw stepper motor 4 308 move the base layer to be welded and the upper layer to be welded to the bottom of the welding head of the spot welding machine 501. The screw lifter 2 302 performs vertical position adjustment, and the screw stepper motor 3 304 performs horizontal position adjustment.

[0133] After the spot welding machine 501 completes welding, the screw stepper motor four 308 and the clamping jaw motor three 310 are reset, the photoelectric counting sensor module outputs a signal to the PLC controller, the PLC controller outputs a signal to the screw stepper motor two 301, the screw stepper motor two 301 moves the welded product to the top of the push rod motor three 401; the distance sensor module three outputs a signal to the PLC controller, the PLC controller outputs a signal to the push rod motor three 401, the vacuum suction cup, the compressor, the solenoid valve, the electric telescopic rod two 402, the push rod motor four 404, and the clamping jaw motor two 403.

[0134] Push rod motor three 401 drives the vacuum suction cup to move up, the compressor and the solenoid valve are started, and after the fixation is completed, the push rod motor three 401 moves up again, the electric telescopic rod two 402, the push rod motor four 404, and the clamping claw motor two 403 are delayed to start, and the product is transferred to the collection frame.

[0135] Embodiment 2, based on embodiment 1, an electromagnet is additionally provided on the movable end of the push rod motor 404.

[0136] The screw stepper motor described in the utility model comprises a servo motor, a ball screw pair, and a nut seat; the servo motor and the ball screw pair are driven by a screw. The ball screw pair comprises a combination of a ball screw, a ball nut, a rotating steel ball, and a circulating part. The nut seat is connected to the ball nut of the ball screw pair.

Claims

1. An automatic feeding system for a spot welding machine, comprising an automatic feeding device and a control system, characterized in that: The automatic feeding device comprises a main frame, a feeding part, a welding adjustment part, and a discharging part; the main frame comprises a base (101), a welding seat (102), a feeding seat (105), a transfer carrier (106), and a discharging carrier (107); the feeding part comprises a bottom material feeding mechanism and a top material feeding mechanism; the welding adjustment part comprises a welding mechanism and a fixing mechanism; the welding mechanism comprises an adjustment structure and a welding table structure; the adjustment structure comprises a screw stepping motor 2 (301), a movable carrier 2 (303), a screw lifter 2 (302), and a strip carrier; the welding table structure comprises a screw stepping motor 3 (304), a welding carrier The invention relates to a welding carrier (305), a stepping motor (306) and a T-shaped pressing plate (307); a screw stepping motor (304) is arranged on a movable carrier (303); the welding carrier (305) comprises a U-shaped plate (2), which is arranged on a nut seat of the screw stepping motor (304); a circular pin hole is arranged on the welding carrier (305); the stepping motor (306) is arranged on the lower bottom surface of the welding carrier (305) through a mounting frame; the T-shaped pressing plate (307) is arranged on the rotating shaft of the stepping motor (306), and its cross plate is located above the welding carrier (305); the unloading part comprises an auxiliary mechanism and a transfer mechanism.

2. According to claim 1, the automatic feeding system for spot welding machine is characterized in that: The second screw lift (302) is arranged in the welding seat (102); the strip-shaped carrier plate is arranged on the movable end of the second screw lift (302); the second screw stepping motor (301) is arranged on the strip-shaped carrier plate; the second movable carrier plate (303) is arranged on the nut seat of the second screw stepping motor (301), and includes a "U"-shaped plate.

3. The automatic feeding system for spot welding machine according to claim 1, characterized in that: The fixing mechanism comprises a screw stepper motor four (308), a movable carrier plate four, an electric telescopic rod three (309) and a clamping jaw motor three (310); the screw stepper motor four (308) and the sliding rod are arranged on the welding seat (102); the movable carrier plate four is slidably connected to the sliding rod, and its lower bottom surface is connected to the nut seat of the screw stepper motor four (308); the electric telescopic rod three (309) is arranged on the movable carrier plate four; and the clamping jaw motor three (310) is arranged on the movable end of the electric telescopic rod three (309).

4. The automatic feeding system for spot welding machine according to claim 1, characterized in that: The bottom material supply mechanism comprises a chain conveyor belt (201), a screw stepper motor (202), a movable carrier plate, an electric telescopic rod (203) and a clamping jaw motor (204); the chain conveyor belt (201) is arranged in a material supply seat (105); the screw stepper motor (202) is arranged on a transfer carrier plate (106); the movable carrier plate is slidably connected to the transfer carrier plate (106) through a slide rail, and its lower bottom surface is connected to a nut seat of the screw stepper motor (202); the lower bottom surface of the movable carrier plate is arranged on a mounting carrier plate through a connecting column; the mounting carrier plate is located below the transfer carrier plate (106); the electric telescopic rod (203) is arranged on the lower bottom surface of the mounting carrier plate; and the clamping jaw motor (204) is arranged on the movable end of the electric telescopic rod (203).

5. The automatic feeding system for spot welding machine according to claim 1, characterized in that: The material feeding mechanism comprises a storage box structure (205), a push rod motor (206), an adjustment plate, a screw lifter (207), a push rod motor (208) and a connecting roller (209); the storage box structure (205) comprises a "C"-shaped through pipe, a "ㅠ"-shaped limit block and a movable gate plate; a "U"-shaped opening through groove is arranged on the bottom plate of the "C"-shaped through pipe; a strip-shaped through hole (5) is arranged on the "C"-shaped through pipe; the movable gate plate (1) is plugged into the strip-shaped through hole (5); the push rod motor (206) is arranged on the upper bottom plate of the welding seat (102), and a "T"-shaped positioning plate is arranged on the movable end thereof; the "ㅠ"-shaped limit block is arranged on the side plate of the "C"-shaped through pipe, and The fixing plate is arranged on the movable end of the push rod motor 1 (206); the screw rod lifter 1 (207) is arranged in the welding seat (102), and a "C"-shaped adjustment plate is arranged on its movable end; the "C"-shaped adjustment plate is slidably connected in the rectangular through hole; the push rod motor 2 (208) is arranged on the upper bottom plate of the welding seat (102); the connecting roller shaft (209) is arranged on the upper bottom plate of the welding seat (102), and is located behind the push rod motor 2 (208); the spacing between the connecting roller shafts (209) is adapted to the "C"-shaped adjustment plate; a rectangular parallelepiped push block is arranged on the movable end of the push rod motor 2 (208); the rectangular parallelepiped push block is slidably connected in the "C"-shaped adjustment plate.

6. The automatic feeding system for spot welding machine according to claim 1, characterized in that: The auxiliary mechanism comprises a push rod motor three (401), a vacuum suction cup and a compressor; the push rod motor three (401) is arranged in a welding seat (102) through a mounting frame; the vacuum suction cup is arranged on the movable end of the push rod motor three (401); the vacuum suction cup and the compressor are connected through an electromagnetic valve.

7. The automatic feeding system for spot welding machine according to claim 1, characterized in that: The transfer mechanism comprises an electric telescopic rod 2 (402), a push rod motor 4 (404) and a clamping claw motor 2 (403); the electric telescopic rod 2 (402) is arranged on the lower bottom surface of the unloading carrier plate (107); the push rod motor 4 (404) is arranged on the movable end of the electric telescopic rod 2 (402); the electric telescopic rod 2 (402) and the push rod motor 4 (404) are in a "U" shape; the clamping claw motor 2 (403) is arranged on the movable end of the push rod motor 4 (404).

8. The automatic feeding system for spot welding machine according to claim 1, characterized in that: The welding seat (102), the feeding seat (105), the transfer carrier (106), and the unloading carrier (107) are arranged on the base (101) through pillars; the welding seat (102) comprises a rectangular hollow container 1, on whose upper bottom plate a "convex"-shaped through hole, a rectangular through hole, and a mounting groove are arranged, on whose lower bottom plate a "T"-shaped through hole (103) is arranged, and on whose rear side plate a strip-shaped through hole 2 (104) is arranged; the rectangular through hole is located in the mounting groove; the lower end of the strip-shaped through hole 2 (104) coincides with one end of the "T"-shaped through hole (103); the feeding seat (105) is located on the right side of the welding seat (102), comprises a rectangular hollow container 2, on whose upper bottom plate a strip-shaped through hole 3 is arranged; the transfer carrier (106) is located above the feeding seat (105) and the welding seat (102); and the unloading carrier (107) is located above the feeding seat (105).

9. The automatic feeding system for spot welding machine according to claim 4, characterized in that: A circular positioning column is arranged on the chain plate of the chain conveyor (201).

10. The automatic feeding system for spot welding machine according to claim 7, characterized in that: An electromagnet is added to the movable end of the push rod motor 4 (404).

Images