Vertical spot welding machine for metal part machining

Abstract

The invention discloses a vertical spot welding machine for metal part machining, and relates to the technical field of metal welding, the vertical spot welding machine comprises a welding machine whole body, the front part of the welding machine whole body is fixedly provided with a top frame, the front part of the welding machine whole body is fixedly provided with a welding base, and the top frame is internally provided with a driving motor; a welding electrode is fixedly installed at the output end of the driving motor, an inner threaded sleeve is rotatably installed at the bottom of the top frame, and the welding electrode slides to drive the inner threaded sleeve, a zigzag connecting rod and cleaning rubber to rotate, so that the cleaning rubber conducts friction cleaning on the welding electrode through contact; the situation that impurities appear on the surface of the welding electrode, and consequently the welding quality during follow-up welding is affected is avoided, rotation of an inner threaded sleeve drives a small-hole stop rod to deflect through a small convex top block, and a cleaning agent in a storage tank is finally sprayed out of a sprayer through a water drainage hole and is attached to the surface of the welding electrode; and the cleaning efficiency of the cleaning rubber is further improved through the cleaning agent.

Description

Technical Field

[0001] The invention relates to the technical field of metal welding, in particular to a vertical spot welding machine for processing metal parts. Background Art

[0002] Vertical spot welding machines for metal parts processing are usually used for spot welding of metal parts. The purpose is to achieve more precise spot welding and improve the welding quality compared with manual welding.

[0003] Patent publication number CN215615732U relates to a vertical spot welder for processing automotive parts, comprising: a spot welder assembly, comprising a spot welder body and a working device, with the working device mounted on the top of the front wall of the spot welder body; and a heat exchange assembly, comprising a heat exchange housing, a heat exchange tube, an air duct, a cooling housing, a first exhaust fan, a second exhaust fan, a water trough, and a water tank. The heat exchange housing is located outside the working device, and the working device is wrapped with a heat exchange tube. The top and bottom ends of the heat exchange tube both pass through the heat exchange housing and are connected to two air ducts. This vertical spot welder for processing automotive parts can provide heat dissipation for the spot welder, preventing the spot welder from generating excessive temperatures due to long-term operation. The device is naturally cooled by water flow, and the heat dissipation of the water flow is completed by the environment, resulting in lower energy consumption.

[0004] In the above patent, the improved water-cooling heat dissipation provides high-efficiency heat dissipation for the spot welding machine, reducing energy consumption while maximizing heat dissipation efficiency. However, if the device fails to clean and maintain the welding electrodes in a timely manner during long-term continuous operation, it may cause the life of the welding electrodes to be shortened or impurities to adhere to the surface of the welding electrodes, thereby affecting the welding quality. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a vertical spot welding machine for processing metal parts, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a vertical spot welding machine for processing metal parts, comprising a welding machine as a whole, a top frame fixedly installed at the front of the welding machine as a whole, a welding base fixedly installed at the front of the welding machine as a whole, a driving motor arranged inside the top frame, a welding electrode fixedly installed at the output end of the driving motor, an inner screw sleeve rotatably installed at the bottom of the top frame, a threaded groove 1 is provided inside the inner screw sleeve, a threaded slider is fixedly installed on the circumferential surface of the welding electrode, two Z-shaped connecting rods are fixedly installed at the bottom of the inner screw sleeve, a cleaning rubber is fixedly installed at the front end of the bottom of the Z-shaped connecting rod, and the inner screw sleeve is provided with a plurality of screw threads. A small convex top block is fixedly installed on the circumferential surface, a storage tank is provided inside the top frame, a water outlet is opened at the bottom of the top frame, a small hole baffle is rotatably installed at the bottom of the top frame, a rubber hose is fixedly connected to the bottom of the top frame, a sprayer is fixedly installed at the bottom of the other Z-shaped connecting rod, and the end of the rubber hose away from the top frame is connected to the sprayer. The driving motor drives the welding electrode to slide downward, and the downward sliding of the welding electrode drives the threaded slider to slide downward. When the threaded slider slides downward, it drives the inner screw sleeve to rotate through contact with the thread groove. The rotation of the inner screw sleeve drives the Z-shaped connecting rod to rotate, and the rotation of the Z-shaped connecting rod drives the cleaning rubber to rotate.

[0007] According to the above technical solution, the thread groove is located on the movement trajectory of the threaded slider, so that the sliding of the threaded slider drives the inner threaded sleeve to rotate through contact, and the cleaning rubber contacts the welding electrode, so that the cleaning rubber can clean the surface of the welding electrode through contact, and the small hole baffle is located on the movement trajectory of the small convex top block, so that the rotation of the small convex top block can drive the small hole baffle to deflect, and the storage tank and the drain are connected by a hose, and the small hole baffle is in contact with the drain, so that the small hole baffle can close the drain under normal circumstances, but open the drain after deflection.

[0008] According to the above technical solution, an auxiliary heat dissipation device is provided at the bottom of the top frame, and the auxiliary heat dissipation device includes a pulley 1, a double-layer pulley, an air nozzle and an air valve switch. The pulley 1 is fixedly mounted on the circumferential surface of the inner screw sleeve, and the double-layer pulley is rotatably mounted on the bottom of the top frame. The pulley 1 is connected to the double-layer pulley through a transmission belt 1, and the air nozzle is slidably mounted inside the top frame. The circumferential surface of the air nozzle is provided with a threaded groove 2, and the double-layer pulley is threadedly connected to the air nozzle. The double-layer pulley is threadedly connected to the air nozzle, and an air pump is provided inside the welding machine as a whole, and an air pump is provided inside the top frame. There is an air valve, and an air valve switch is rotatably installed at the rear of the air valve. The air pump and the air valve are connected by an air hose 1, and the air valve and the air nozzle are connected by an air hose 2. A paddle is fixedly installed on the circumferential surface of the air nozzle. The rotation of the inner screw sleeve drives the pulley 1 to rotate at the same time, and the rotation of the pulley 1 drives the double-layer pulley to rotate through the transmission belt 1. Since the double-layer pulley and the air nozzle are threadedly connected, the rotation of the double-layer pulley drives the air nozzle to slide downward, and when the air nozzle slides downward, the paddle drives the paddle to slide downward together. During the sliding process of the paddle, the air valve switch is deflected and the air valve is opened through contact.

[0009] According to the above technical solution, the auxiliary heat dissipation device also includes an air cylinder, a piston rod and a small hole rotating plate. The air cylinder is fixedly installed inside the top frame, the piston rod is slidably installed on the inner wall of the air cylinder, the top of the piston rod is rotatably connected to a connecting shaft, the connecting shaft is slidably installed on the bottom of the air valve switch, the small hole rotating plate is rotatably installed on the bottom of the air cylinder, and a one-way block is fixedly installed on the bottom of the air cylinder. The air inside the air cylinder will be squeezed during the downward sliding of the piston rod. After being squeezed, the air will continue to squeeze the small hole rotating plate, but since the small hole rotating plate is in contact with the one-way block, it cannot rotate downward, resulting in the air only being discharged from the small air outlet to slow down the air discharge speed.

[0010] According to the above technical solution, the air valve switch is located on the movement trajectory of the paddle, so that the sliding of the paddle drives the air valve switch to deflect through contact to realize the opening and closing of the air valve switch. A spiral spring is arranged between the air valve switch and the air valve, so that the air valve switch can reset itself to close the air valve after deflection and opening. The one-way block contacts the small hole rotating plate, and the small hole rotating plate cannot rotate downward through contact. A small air outlet is provided on the surface of the small hole rotating plate, so that the compressed air in the air cylinder can only be discharged from the small air outlet to slow down the air discharge rate.

[0011] According to the above technical solution, a splash-proof device is provided at the bottom of the top frame, and the splash-proof device includes a vertical connecting block, a shielding piece, a trapezoidal top block and a side shielding piece. The vertical connecting block is fixedly installed on the top of the top frame, and the shielding piece is slidably installed at the rear of the vertical connecting block. The trapezoidal top block is fixedly installed on the circumferential surface of the air nozzle, and the end of the trapezoidal top block away from the air nozzle is slidably connected to the shielding piece. A thick spring is provided between the trapezoidal top block and the shielding piece, and the side shielding piece is slidably installed at the rear of the shielding piece. When the air nozzle slides downward, it drives the trapezoidal top block to slide downward together, and the sliding process of the trapezoidal top block drives the thick spring to slide downward. The sliding of the thick spring drives the shielding piece to slide downward. When the shielding piece slides downward to the bottom, the trapezoidal top block continues to slide downward to squeeze the thick spring, and at the same time it continues to slide downward and drives the side shielding pieces to slide by contact to expand it.

[0012] According to the above technical solution, the splash-proof device also includes pulley 2, gear 1, gear 2 and a cleaning sponge. The gear 1 is rotatably mounted on the bottom of the top frame, the pulley 2 is fixedly mounted on the bottom of the gear 1, the pulley 2 and the double-layer pulley are connected through a transmission belt 2, the gear 2 is rotatably mounted on the bottom of the top frame, the gear 1 is meshed with the gear 2, a connecting longitudinal axis is fixedly mounted on the bottom of the gear 2, and the cleaning sponge is fixedly mounted on the circumferential surface of the connecting longitudinal axis. When the double-layer pulley rotates, the pulley 2 is driven to rotate by the transmission belt 2, the rotation of the pulley 2 drives the gear 1 to rotate, the rotation of the gear 1 drives the gear 2 to rotate, the rotation of the gear 2 drives the connecting longitudinal axis to rotate, and the rotation of the connecting longitudinal axis drives the cleaning sponge to rotate.

[0013] According to the above technical solution, an inclined surface is provided on the side surface of the side baffle, and the inclined surface is located on the movement trajectory of the trapezoidal top block, so that the vertical sliding energy of the trapezoidal top block can be converted into the horizontal sliding of the side baffle. A return spring is provided between the side baffle and the shielding piece, so that the side baffle can automatically return to its initial position after the device completes the welding work, and the cleaning sponge contacts the shielding piece and the side baffle, so that the cleaning sponge can clean the back of the shielding piece and the side baffle through contact.

[0014] The present invention provides a vertical spot welding machine for processing metal parts. It has the following beneficial effects: (1) This invention drives the internal thread sleeve, the Z-shaped connecting rod and the cleaning rubber to rotate by the sliding of the welding electrode, so that the cleaning rubber can clean the welding electrode by friction through contact, thereby avoiding the appearance of impurities on the surface of the welding electrode and affecting the welding quality during subsequent welding. At the same time, the rotation of the internal thread sleeve drives the small hole blocking rod to deflect through the small convex top block, so that the cleaning agent in the storage tank is finally sprayed out from the sprayer through the drain hole and adheres to the surface of the welding electrode. The cleaning efficiency of the cleaning rubber is further improved by the cleaning agent, thereby extending the total service life of the welding electrode.

[0015] (2) In this invention, the inner thread sleeve drives the double-layer pulley and the air nozzle to move through the pulley, and then drives the air valve switch to deflect and open it through the paddle, so that the air pump can pass the air through the air valve and finally eject the air from the air nozzle, thereby realizing that the device can clean the surface of the workpiece before welding and dissipate heat from the workpiece surface through air cooling after the welding work is completed, thereby reducing the surface temperature of the workpiece to avoid the operator being burned by the workpiece due to misoperation. At the same time, the reset speed of the air valve switch is limited by the small hole rotating plate, so that the air valve switch needs a period of time to reset after it is opened, thereby extending the duration of the jet heat dissipation and further improving the heat dissipation effect.

[0016] (3) This invention drives the sliding of the shielding plate and the sliding of the side plates by the sliding of the air nozzle, so that the shielding plate is lowered and the side plates are unfolded when the device is performing welding operations on the workpiece, thereby avoiding as much as possible the operator from looking directly at the strong light generated during welding and preventing the slag generated during welding from splashing. At the same time, the double-layer pulley drives the cleaning sponge to rotate through the second pulley and the gear set, thereby achieving the cleaning effect on the rear of the shielding plate and the side plates, and avoiding the excessive attachment of residues to the rear of the shielding plate due to long-term use of the device, thereby affecting the overall working process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the bottom structure of the top frame of the present invention; Figure 3 This is a schematic diagram of the structure of the inner thread sleeve and the threaded slider of the present invention; Figure 4 This is a schematic diagram of the structure of the small hole blocking rod and the small convex top block of the present invention; Figure 5 This is a schematic diagram of the air nozzle and double-layer pulley structure of the present invention; Figure 6 Schematic diagram of the structure of the splash-proof device of the present invention; Figure 7 This is a schematic diagram of the structure of the trapezoidal top block and side baffles of the present invention; Figure 8 It is a schematic diagram of the internal structure of the gas cylinder of the present invention.

[0018] In the figure: 1. Welding machine as a whole; 2. Top frame; 3. Welding base; 4. Welding electrode; 501. Internal thread sleeve; 502. Threaded slider; 503. Zigzag connecting rod; 504. Cleaning rubber; 505. Small convex top block; 506. Small hole blocking rod; 507. Rubber hose; 508. Sprayer; 601. Pulley 1; 602. Double-layer pulley; 603. Air nozzle; 604. Air valve switch; 605. Air cylinder; 606. Piston rod; 607. Small hole rotating plate; 701. Vertical connecting block; 702. Pulley 2; 703. Gear 1; 704. Shielding piece; 705. Trapezoidal top block; 706. Side blocking piece; 707. Gear 2; 708. Cleaning sponge. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figures 1-4 One embodiment of the present invention is: a vertical spot welding machine for processing metal parts, including a welding machine as a whole 1, a top frame 2 is fixedly installed at the front of the welding machine as a whole 1, a welding base 3 is fixedly installed at the front of the welding machine as a whole 1, a driving motor is arranged inside the top frame 2, a welding electrode 4 is fixedly installed at the output end of the driving motor, an inner screw sleeve 501 is rotatably installed at the bottom of the top frame 2, a thread groove 1 is opened inside the inner screw sleeve 501, a threaded slider 502 is fixedly installed on the circumferential surface of the welding electrode 4, two Z-shaped connecting rods 503 are fixedly installed at the bottom of the inner screw sleeve 501, a cleaning rubber 504 is fixedly installed at the bottom front end of the Z-shaped connecting rod 503, a small convex top block 505 is fixedly installed on the circumferential surface of the inner screw sleeve 501, a storage tank is arranged inside the top frame 2, a drain is opened at the bottom of the top frame 2, and a small hole is rotatably installed at the bottom of the top frame 2 The baffle 506 and the bottom of the top frame 2 are fixedly connected with a rubber hose 507, and the bottom of another Z-shaped connecting rod 503 is fixedly installed with a sprayer 508. The end of the rubber hose 507 away from the top frame 2 is connected to the sprayer 508, and the sliding of the welding electrode 4 drives the inner screw sleeve 501, the Z-shaped connecting rod 503 and the cleaning rubber 504 to rotate, so that the cleaning rubber 504 can clean the welding electrode 4 by friction through contact, avoiding the appearance of impurities on the surface of the welding electrode 4 and affecting the welding quality during subsequent welding. At the same time, the rotation of the inner screw sleeve 501 drives the small hole baffle 506 to deflect through the small convex top block 505, so that the detergent in the storage tank is finally sprayed out from the sprayer 508 through the drain hole and adheres to the surface of the welding electrode 4, and the cleaning efficiency of the cleaning rubber 504 is further improved by the detergent.

[0021] The thread groove 1 is located on the movement trajectory of the threaded slider 502, so that the sliding of the threaded slider 502 drives the inner thread sleeve 501 to rotate through contact, and the cleaning rubber 504 contacts the welding electrode 4, so that the cleaning rubber 504 can clean the surface of the welding electrode 4 through contact, and the small hole baffle 506 is located on the movement trajectory of the small convex top block 505, so that the rotation of the small convex top block 505 can drive the small hole baffle 506 to deflect, and the storage tank and the drain are connected by a hose. The small hole baffle 506 contacts the drain, so that the small hole baffle 506 can close the drain under normal circumstances, but open the drain after deflection.

[0022] During operation: When the device enters the working state, the workpiece to be welded is placed above the welding base 3, and the driving motor drives the welding electrode 4 to slide downward. The downward sliding of the welding electrode 4 drives the threaded slider 502 to slide downward. When the threaded slider 502 slides downward, it drives the inner thread sleeve 501 to rotate by contacting with the thread groove. The rotation of the inner thread sleeve 501 drives the Z-shaped connecting rod 503 to rotate. The rotation of the Z-shaped connecting rod 503 drives the cleaning rubber 504 to rotate. The cleaning rubber 504 cleans the surface of the welding electrode 4 through contact during the rotation process, thereby avoiding impurities adhering to its surface and affecting the welding effect. At the same time, the rotation of the inner screw sleeve 501 drives the small convex top block 505 to rotate. During the rotation of the small convex top block 505, it drives the small hole blocking rod 506 to deflect through contact. After the small hole blocking rod 506 is deflected, it is out of contact with the drain. After the contact is out of contact, the detergent in the storage tank is finally sprayed out from the sprayer 508 through the drain and the rubber hose 507 and adheres to the surface of the welding electrode 4. After the detergent adheres to its surface, it improves the cleaning effect of the cleaning rubber 504, thereby keeping the surface of the welding electrode 4 clean to improve its overall service life.

[0023] See also Figures 1-8, on the basis of the above embodiment, in another embodiment of the present invention, an auxiliary heat dissipation device is provided at the bottom of the top frame 2, and the auxiliary heat dissipation device includes a pulley 601, a double-layer pulley 602, an air nozzle 603 and an air valve switch 604. The pulley 601 is fixedly mounted on the circumferential surface of the inner screw sleeve 501, and the double-layer pulley 602 is rotatably mounted on the bottom of the top frame 2. The pulley 601 and the double-layer pulley 602 are connected by a transmission belt 1. The air nozzle 603 is slidably mounted inside the top frame 2. The circumferential surface of the air nozzle 603 is provided with a thread groove 2. The double-layer pulley 602 is threadedly connected to the air nozzle 603. The double-layer pulley 602 is threadedly connected to the air nozzle 603. The welding machine as a whole 1 is internally provided with An air pump is provided, and an air valve is provided inside the top frame 2. An air valve switch 604 is rotatably installed at the rear of the air valve. The air pump and the air valve are connected by an air hose 1, and the air valve and the air nozzle 603 are connected by an air hose 2. A paddle is fixedly installed on the circumferential surface of the air nozzle 603. The inner screw sleeve 501 drives the double-layer pulley 602 and the air nozzle 603 to move through the pulley 1 601, and then drives the air valve switch 604 to deflect and open it through the paddle, so that the air pump passes the air through the air valve and finally ejects the air from the air nozzle 603, thereby realizing the device to clean the surface of the workpiece before welding and to dissipate heat on the surface of the workpiece through air cooling after the welding work is completed to reduce the surface temperature of the workpiece.

[0024] The auxiliary heat dissipation device also includes an air cylinder 605, a piston rod 606 and a small hole rotating plate 607. The air cylinder 605 is fixedly installed inside the top frame 2, and the piston rod 606 is slidably installed on the inner wall of the air cylinder 605. The top of the piston rod 606 is rotatably connected to a connecting shaft, and the connecting shaft is slidably installed at the bottom of the air valve switch 604. The small hole rotating plate 607 is rotatably installed at the bottom of the air cylinder 605. A one-way block is fixedly installed at the bottom of the air cylinder 605. The small hole rotating plate 607 limits the reset speed of the air valve switch 604, so that the air valve switch 604 needs a period of time to reset and close after it is opened, thereby extending the duration of the jet heat dissipation and further improving the heat dissipation effect.

[0025] The air valve switch 604 is located on the movement trajectory of the paddle, so that the sliding of the paddle drives the air valve switch 604 to deflect through contact to realize the opening and closing of the air valve switch 604. A spiral spring is arranged between the air valve switch 604 and the air valve, so that the air valve switch 604 can reset itself to close the air valve after being deflected and opened. The one-way block contacts the small hole rotating plate 607, and the small hole rotating plate 607 cannot rotate downward through contact. A small air outlet is provided on the surface of the small hole rotating plate 607, so that the compressed air in the air cylinder 605 can only be discharged from the small air outlet to slow down the air discharge rate.

[0026] A splash-proof device is provided at the bottom of the top frame 2, which includes a vertical connecting block 701, a shielding piece 704, a trapezoidal top block 705 and a side baffle 706. The vertical connecting block 701 is fixedly mounted on the top of the top frame 2, and the shielding piece 704 is slidably mounted on the rear of the vertical connecting block 701. The trapezoidal top block 705 is fixedly mounted on the circumferential surface of the gas nozzle 603, and the end of the trapezoidal top block 705 away from the gas nozzle 603 is slidably connected to the shielding piece 704. A thick spring is provided between the trapezoidal top block 705 and the shielding piece 704, and the side baffle 706 is slidably mounted on the rear of the shielding piece 704. The sliding of the gas nozzle 603 drives the sliding of the shielding piece 704 and the sliding of the side baffle 706, so that when the device performs welding operation on the workpiece, the shielding piece 704 is lowered and the side baffle 706 is unfolded, thereby avoiding as much as possible the operator from directly looking at the strong light generated during welding and preventing the slag generated during welding from splashing.

[0027] The splash-proof device also includes pulley 2 702, gear 1 703, gear 2 707 and cleaning sponge 708. Gear 1 703 is rotatably mounted on the bottom of the top frame 2, pulley 2 702 is fixedly mounted on the bottom of gear 1 703, pulley 2 702 and the double-layer pulley 602 are connected through transmission belt 2, gear 2 707 is rotatably mounted on the bottom of the top frame 2, gear 1 703 is meshed with gear 2 707, a connecting longitudinal axis is fixedly mounted on the bottom of gear 2 707, a cleaning sponge 708 is fixedly mounted on the circumferential surface of the connecting longitudinal axis, and the double-layer pulley 602 drives the cleaning sponge 708 to rotate through pulley 2 702 and the gear set, thereby achieving a cleaning effect on the rear of the shielding plate 704 and the side shielding plate 706, thereby avoiding excessive residue adhering to the rear of the shielding plate 704 due to long-term use of the device, thereby affecting the overall working process.

[0028] The side baffle 706 is provided with an inclined surface on the side surface, and the inclined surface is located on the movement trajectory of the trapezoidal top block 705, so that the vertical sliding of the trapezoidal top block 705 can be converted into horizontal sliding of the side baffle 706. A return spring is provided between the side baffle 706 and the shielding piece 704, so that the side baffle 706 can automatically return to its initial position after the device completes the welding work, and the cleaning sponge 708 contacts the shielding piece 704 and the side baffle 706, so that the cleaning sponge 708 can clean the back of the shielding piece 704 and the side baffle 706 through contact.

[0029] When this embodiment is working, the rotation of the inner screw sleeve 501 drives the pulley 601 to rotate at the same time, and the rotation of the pulley 601 drives the double-layer pulley 602 to rotate through the transmission belt 1. Since the double-layer pulley 602 is threadedly connected to the air nozzle 603, the rotation of the double-layer pulley 602 drives the air nozzle 603 to slide downward, and when the air nozzle 603 slides downward, it drives the paddle to slide downward together. During the sliding process of the paddle, the air valve switch 604 is deflected and the air valve is opened through contact, so that the air pump pumps air through the air valve and then out of the air nozzle 603, so that the air nozzle 603 can clean the surface of the workpiece by jetting air before processing, avoiding dust accumulation on the surface of the workpiece and affecting welding. Effect: when the device completes the welding work, the driving motor drives the welding electrode 4 to slide upward to retract it. When the welding electrode 4 slides upward, it drives the inner thread sleeve 501 to rotate in the opposite direction through the threaded slider 502. When the inner thread sleeve 501 rotates in the opposite direction, it drives the air nozzle 603 to slide upward through the pulley 1 601 and the double-layer pulley 602. The air nozzle 603 slides upward and drives the paddle to slide upward. During the sliding process of the paddle, the air valve switch 604 is deflected through contact to open the air valve, so that air is ejected from the air nozzle 603 to achieve air cooling and heat dissipation of the processed workpiece surface, avoiding high temperature burns caused by operator misoperation and contact with the workpiece surface. After the air nozzle 603 continues to slide upward, it drives the paddle to disengage from the air valve switch 604. After disengagement, the air valve switch 604 rotates under the rebound force of the spiral spring to return to its initial position. During the rotation of the air valve switch 604, it drives the connecting shaft to rotate. The rotation of the connecting shaft drives the piston rod 606 to slide downward. During the downward sliding of the piston rod 606, the air inside the air cylinder 605 is squeezed. After being squeezed, the air will continue to squeeze the small hole rotating plate 607. However, since the small hole rotating plate 607 is in contact with the one-way block, it cannot rotate downward, resulting in the air only being discharged from the small air outlet to slow down the air discharge speed, thereby slowing down the downward sliding speed of the piston rod 606, realizing the delayed reset closing of the air valve switch 604, extending the opening time of the air valve switch 604 and the jetting time of the air nozzle 603, thereby improving the heat dissipation and cooling effect of the device on the workpiece.

[0030] When the air nozzle 603 slides downward, it drives the trapezoidal top block 705 to slide downward together. During the sliding process of the trapezoidal top block 705, it drives the thick spring to slide downward. The sliding of the thick spring drives the shielding piece 704 to slide downward. When the shielding piece 704 slides downward to the bottom, the trapezoidal top block 705 continues to slide downward to squeeze the thick spring. At the same time, it continues to slide downward and drives the side baffle 706 to slide and expand through contact, thereby achieving the goal of driving the shielding piece 704 to slide downward and the side baffle 706 to slide and expand through the sliding of the air nozzle 603, so that the shielding piece 704 and the side baffle 706 shield the welding part during the processing, avoiding the operator from looking directly at the strong light generated by the welding part as much as possible and preventing the slag generated during the welding process from splashing. At the same time, when the double-layer pulley 602 rotates, the transmission belt 2 drives the pulley 2 702 to rotate, and the rotation of the pulley 2 702 drives the gear 1 703 to rotate. The rotation of the gear 1 703 drives the gear 2 707 to rotate. The rotation of the gear 2 707 drives the connecting longitudinal axis to rotate. The rotation of the connecting longitudinal axis drives the cleaning sponge 708 to rotate. The rotation of the cleaning sponge 708 cleans the residue attached to the surface of the shielding piece 704 and the side baffle 706 through contact, thereby avoiding the accumulation of residue on the surface due to long-term use, thereby affecting the overall working process of the device.

[0031] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A vertical spot welding machine for processing metal parts, comprising a welding machine as a whole, characterized in that: The overall front portion of the welding machine is fixedly mounted with a top frame, the overall front portion of the welding machine is fixedly mounted with a welding base, a driving motor is provided inside the top frame, a welding electrode is fixedly mounted on the output end of the driving motor, an inner screw sleeve is rotatably mounted on the bottom of the top frame, a threaded groove is provided inside the inner screw sleeve, a threaded slider is fixedly mounted on the circumferential surface of the welding electrode, two Z-shaped connecting rods are fixedly mounted on the bottom of the inner screw sleeve, a cleaning rubber is fixedly mounted on the front end of the bottom of the Z-shaped connecting rod, a small convex top block is fixedly mounted on the circumferential surface of the inner screw sleeve, a storage tank is provided inside the top frame, a water outlet is provided at the bottom of the top frame, a small hole baffle is rotatably mounted on the bottom of the top frame, a rubber hose is fixedly connected to the bottom of the top frame, a sprayer is fixedly mounted on the bottom of the other Z-shaped connecting rod, and the end of the rubber hose away from the top frame is connected to the sprayer.

2. A vertical spot welding machine for processing metal parts according to claim 1, characterized in that: The thread groove is located on the movement track of the threaded slider, the cleaning rubber is in contact with the welding electrode, the small hole blocking rod is located on the movement track of the small convex top block, the storage tank is connected to the drain through a hose, and the small hole blocking rod is in contact with the drain.

3. A vertical spot welding machine for processing metal parts according to claim 2, characterized in that: The bottom of the top frame is provided with an auxiliary heat dissipation device, and the auxiliary heat dissipation device includes a pulley 1, a double-layer pulley, an air nozzle and an air valve switch. The pulley 1 is fixedly mounted on the circumferential surface of the inner screw sleeve, and the double-layer pulley is rotatably mounted on the bottom of the top frame. The pulley 1 and the double-layer pulley are connected by a transmission belt 1, and the air nozzle is slidably mounted inside the top frame. The circumferential surface of the air nozzle is provided with a threaded groove 2, and the double-layer pulley is threadedly connected to the air nozzle. The double-layer pulley is threadedly connected to the air nozzle, and an air pump is provided inside the welding machine as a whole, and an air valve is provided inside the top frame. An air valve switch is rotatably mounted on the rear part of the air valve, and the air pump and the air valve are connected by an air hose 1, and the air valve and the air nozzle are connected by an air hose 2. A paddle is fixedly mounted on the circumferential surface of the air nozzle.

4. A vertical spot welding machine for processing metal parts according to claim 3, characterized in that: The auxiliary heat dissipation device also includes an air cylinder, a piston rod and a small hole rotating plate. The air cylinder is fixedly installed inside the top frame, the piston rod is slidably installed on the inner wall of the air cylinder, the top of the piston rod is rotatably connected to a connecting shaft, the connecting shaft is slidably installed on the bottom of the air valve switch, the small hole rotating plate is rotatably installed on the bottom of the air cylinder, and a one-way block is fixedly installed on the bottom of the air cylinder.

5. The vertical spot welding machine for processing metal parts according to claim 4, characterized in that: The air valve switch is located on the movement track of the paddle, a spiral spring is provided between the air valve switch and the air valve, the one-way block is in contact with the small hole rotating plate, and a small air outlet is provided on the surface of the small hole rotating plate.

6. A vertical spot welding machine for processing metal parts according to claim 5, characterized in that: A splash-proof device is provided at the bottom of the top frame, and the splash-proof device includes a vertical connecting block, a shielding piece, a trapezoidal top block and a side shielding piece. The vertical connecting block is fixedly mounted on the top of the top frame, and the shielding piece is slidably mounted on the rear part of the vertical connecting block. The trapezoidal top block is fixedly mounted on the circumferential surface of the air nozzle, and the end of the trapezoidal top block away from the air nozzle is slidably connected to the shielding piece. A thick spring is provided between the trapezoidal top block and the shielding piece, and the side shielding piece is slidably mounted on the rear part of the shielding piece.

7. A vertical spot welding machine for processing metal parts according to claim 6, characterized in that: The splash-proof device also includes pulley 2, gear 1, gear 2 and a cleaning sponge. Gear 1 is rotatably mounted on the bottom of the top frame, pulley 2 is fixedly mounted on the bottom of gear 1, pulley 2 is connected to the double-layer pulley through transmission belt 2, gear 2 is rotatably mounted on the bottom of the top frame, gear 1 is meshed with gear 2, a connecting longitudinal axis is fixedly mounted on the bottom of gear 2, and the cleaning sponge is fixedly mounted on the circumferential surface of the connecting longitudinal axis.

8. The vertical spot welding machine for processing metal parts according to claim 7, characterized in that: The side baffle is provided with an inclined surface on the side surface, and the inclined surface is located on the movement track of the trapezoidal top block. A return spring is provided between the side baffle and the shielding piece, and the cleaning sponge is in contact with the shielding piece and the side baffle.

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