A multi-spot welding machine for sheet metal parts that is easy to position

Abstract

The invention discloses a sheet metal multi-spot welding machine that is easy to position. The invention relates to the technical field of welding equipment, including a frame, an adjustment mechanism, the adjustment mechanism including an arc hole and an I-shaped slider, a fan-shaped plate is fixedly installed at the side of the outer side of the I-shaped slider, and the fan-shaped plate is installed inside the U-shaped protective plate, a hydraulic cylinder is rotatably installed at the outer side of the U-shaped protective plate and close to the arc hole, the output end of the hydraulic cylinder is rotatably installed with the side of the I-shaped slider away from the fan-shaped plate, a welding assembly is installed on the side of the fan-shaped slider away from the I-shaped slider, the welding assembly includes a connecting base, a right-angle plate is fixedly installed at one end of the connecting base away from the fan-shaped plate, a welding main machine is slidably installed in the middle of the outer side of the right-angle plate, and a welding gun is installed in the middle of the bottom of the welding main machine. The sheet metal multi-spot welding machine that is easy to position achieves the effect of multi-spot welding, adopts multi-spot welding, and adjusts the angle in time, is more flexible and changeable to use, and reduces limitations.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, in particular to a multi-spot welding machine for sheet metal parts which is easy to position. Background Art

[0002] Welding is the most common processing method in modern industry, which is used to fix and connect metal parts to each other. There are many types of welding equipment, such as the butt welding machine: the workpiece is placed on the chuck, the two ends of the joint are pressed against each other, and a large amount of current is conducted to the workpiece through the chuck, generating high temperature through the contact surface. When the metal reaches a plastic state, appropriate pressure is applied to the moving end to squeeze and connect the two ends. The butt welding machine is actually a resistance welding machine. Its welding principle is to use the resistance heat and a large amount of plastic deformation energy of the welding area itself to make the two separated metal atoms approach the lattice distance to form a metal bond, and produce a sufficient amount of common grains on the bonding surface to obtain welding points, welds or butt joints. The butt welding machine is generally directly driven by a cylinder to produce lifting and lowering movements, thereby driving the welding needle for welding, so that the welding workpiece will be directly subjected to force, and there is usually a certain distance between the welding workpiece and the welding head.

[0003] At present, most of the existing butt welding machines are single-point welding, which increases welding time, reduces welding speed, and is not convenient for adjusting the angle, especially for some curved sheet metal parts, which affects the overall use of the equipment. The welding work of the equipment is not flexible, has great limitations, and is not convenient for batch welding. Summary of the invention

[0004] To achieve the above purpose, the present invention is implemented through the following technical solutions: a sheet metal multi-spot welding machine that is easy to position, comprising:

[0005] A frame, the frame having a supporting frame body, and a U-shaped protective plate is fixedly installed on the top of the frame;

[0006] An adjustment mechanism, which is used to adjust the angle of the welding tool, and is installed in the middle of the U-shaped protective plate;

[0007] The adjusting mechanism comprises an arc-shaped hole and an I-shaped slider, wherein the arc-shaped hole is arranged at the side of the outer side of the U-shaped protective plate, the I-shaped slider is slidably installed between the arc-shaped hole and the U-shaped protective plate, a fan-shaped plate is fixedly installed at the side of the outer side of the I-shaped slider, and the fan-shaped plate is installed inside the U-shaped protective plate, and the top of the fan-shaped plate is rotatably installed between the U-shaped protective plate, and a hydraulic cylinder is rotatably installed on the outer side of the U-shaped protective plate and close to the arc-shaped hole, and the output end of the hydraulic cylinder is rotatably installed on the side of the I-shaped slider away from the fan-shaped plate, and a welding assembly is installed on the side of the fan-shaped plate away from the I-shaped slider, and the extension and contraction of the output end of the hydraulic cylinder can drive the I-shaped slider to move, and under the guiding action of the arc-shaped hole, and the rotation point at the top of the fan-shaped plate coincides with the center of the arc-shaped hole, so that the I-shaped slider drives the fan-shaped plate to rotate and adjust the angle, so that the fan-shaped plate drives the welding assembly to rotate as a whole, and the angle is adjusted in time, so as to increase the welding range;

[0008] The welding assembly comprises a connecting base, the connecting base is fixedly installed with the outer side of the fan-shaped plate and near the bottom position by screws, a right-angle plate is fixedly installed at one end of the connecting base away from the fan-shaped plate, a welding main unit is slidably installed in the middle of the outer side of the right-angle plate, a welding gun is installed in the middle of the bottom of the welding main unit, an electric telescopic rod is fixedly installed at the bottom of the right-angle plate, and the output end of the electric telescopic rod is fixedly installed between the outer side of the welding main unit. Under the connection of the connecting base and with the support of the right-angle plate, the staff turns on the electric telescopic rod to work, and utilizes the contraction and extension of the output end of the electric telescopic rod to drive the welding main unit up and down, thereby driving the welding gun to move together, so that the distance between the bottom end of the welding gun and the sheet metal can be fine-tuned, thereby promoting the welding of the sheet metal by the welding gun;

[0009] At the same time, combined with the welding host being evenly distributed on the right-angle plate, multiple welding guns can be used to increase the number of welding points on the sheet metal parts, making the welding speed faster.

[0010] Preferably, there are two arc-shaped holes, and the two arc-shaped holes are symmetrically installed along the central axis in the middle of the U-shaped protective plate. The hydraulic cylinder is installed at an angle to facilitate the use of the output end of the hydraulic cylinder to push the I-shaped slider.

[0011] Preferably, the welding host is evenly distributed in the middle of the outer side of the right-angle plate, and the position of the welding host corresponds to the position of the electric telescopic rod, so that the output end of the electric telescopic rod can drive the welding host and fine-tune the position of the welding host.

[0012] The outer circular surface of the cylindrical roller fits the outer side of the U-shaped protective plate, and the anti-skid teeth are fixedly installed on the arc concave surface of the bottom of the pressing block, and the contraction of the output end of the cylinder can drive the U-shaped connecting plate to move downward, so that the U-shaped connecting plate is clamped in the middle of the U-shaped protective plate, and the outer circular surface of the cylindrical roller fits the outer side of the U-shaped protective plate, so that the U-shaped connecting plate is supported, thereby making the structures more stable, and moving downward by the pressing block, and contacting with the sheet metal by the anti-skid teeth, plays an anti-skid role, and presses and fixes the sheet metal to be processed.

[0013] Preferably, the cylindrical rollers are evenly distributed on the two corresponding sides of the inner wall of the U-shaped connecting plate, and the anti-skid teeth are evenly distributed on the arc-shaped concave surface at the bottom of the pressing block, thereby increasing the contact points between the anti-skid teeth and the sheet metal parts.

[0014] As the U-shaped connecting plate moves downward, the cylindrical roller rolls, and rolling friction is used to reduce friction resistance, so that the structures can run smoothly and are less likely to get stuck.

[0015] Preferably, a support mechanism is installed in the middle of the frame, and the support mechanism includes an inclined support frame, the bottom of the inclined support frame is fixedly installed with the bottom of the frame inner cavity by bolts, and a supporting workbench is fixedly installed on the top of the inclined support frame, and the top of the supporting workbench passes through the top of the frame inner cavity and extends to the outside thereof, and gasket strips are fixedly installed at corresponding positions on the top of the supporting workbench, and limited stop strips are fixedly installed at the sides of the outer sides of the gasket strips, and a positioning assembly is installed inside the supporting workbench and near the gasket strip, by placing the sheet metal parts to be welded on the top of the supporting workbench, and combining the arched top of the supporting workbench, and under the support of the gasket strips, the sheet metal parts are placed stably;

[0016] At the same time, by using the limit stop bars at both ends of the sheet metal part, the sheet metal part can be limited and it is not easy to deviate.

[0017] Preferably, the support workbench is installed in the middle of the top of the frame, the top of the support workbench is arched, so that the arc-shaped sheet metal parts match the top of the support workbench, the padding strip is arc-shaped, and the limit stop strips are evenly distributed on the sides of the outer side of the padding strip.

[0018] Preferably, the positioning assembly includes a connecting guide column and a pin shaft, the connecting guide column is slidably installed inside the supporting workbench and close to the padding strip, the pin shaft is fixedly installed at the side of the supporting workbench, the top of the connecting guide column is fixedly installed with a pressure block, the bottom of the pressure block and the bottom of the inner cavity of the supporting workbench are fixedly installed with a spring, the bottom end of the connecting guide column is rotatably installed with a positioning square rod, the middle of the outer side of the positioning square rod is provided with a straight hole, the pin shaft passes through the middle of the straight hole, and the plate metal is used. Its own weight can press the pressure block, and under the support and guiding action of the connecting guide column, the pressure block and the connecting guide column move downward, and the spring is compressed, and when the connecting guide column moves downward, the end of the positioning square rod can be pressed downward, and under the limiting connection of the pin shaft, the positioning square rod is tilted, and the positioning square rods on both sides are symmetrically tilted to form a V shape, so that the sheet metal on the top of the supporting workbench can be positioned, so that the sheet metal is always in the middle of the top of the supporting workbench and is not easily skewed.

[0019] Preferably, the top of the pressure block is an arc-shaped surface, and the pressure block is slidably installed between the support workbench. The connecting guide column passes through the center of the spring, and the pressing block presses and fixes the sheet metal on the top of the support workbench, so that the pressure block is subjected to pressing force, which can make the positioning square rod and the edge of the sheet metal fully fit, so that the overall structure fixes the sheet metal firmly and is not easy to loosen.

[0020] Preferably, there are two positioning square rods, and the two positioning square rods are symmetrically installed along the connecting guide column, so that the symmetrical positioning square rods on both sides can be pressed together to facilitate positioning of the sheet metal parts. The end of the positioning square rod away from the connecting guide column extends to the outside of the supporting workbench.

[0021] The present invention provides a sheet metal multi-spot welding machine that is easy to position. It has the following beneficial effects:

[0022] 1. The sheet metal multi-spot welding machine which is easy to position is connected to the base, supported by the right-angle plate, and utilizes the contraction and extension of the output end of the electric telescopic rod to drive the welding host to move up and down, thereby driving the welding gun to move together, so that the distance between the bottom of the welding gun and the sheet metal can be fine-tuned, thereby promoting the welding of the sheet metal by the welding gun. At the same time, combined with the welding host being evenly distributed on the right-angle plate, the welding points of the sheet metal can be increased by multiple welding guns, so that the welding speed is fast.

[0023] Second, the sheet metal multi-spot welding machine which is easy to position can drive the I-shaped slider to move by the extension and contraction of the output end of the hydraulic cylinder, and under the guidance of the arc hole, and by using the rotation point at the top of the fan-shaped plate to coincide with the center of the arc hole, the I-shaped slider drives the fan-shaped plate to rotate and adjust the angle, so that the fan-shaped plate drives the welding assembly to rotate as a whole, and the angle can be adjusted in time to increase the welding range.

[0024] 3. The sheet metal multi-spot welding machine which is easy to position can use the contraction of the cylinder output end to drive the U-shaped connecting plate to move downward, so that the U-shaped connecting plate is clamped in the middle of the U-shaped protective plate, and the outer cylindrical surface of the cylindrical roller is fitted with the outer side of the U-shaped protective plate to support the U-shaped connecting plate, thereby making the structure more stable, and moving downward through the pressing block, and using the anti-skid teeth to contact the sheet metal, play an anti-skid role, and press and fix the sheet metal to be processed.

[0025] Fourth, the sheet metal multi-spot welding machine which is easy to position, as the U-shaped connecting plate moves downward, causes the cylindrical roller to roll, and adopts rolling friction to reduce friction resistance, so that the structures can run smoothly and are not prone to jamming.

[0026] 5. The sheet metal multi-spot welding machine which is easy to position places the sheet metal to be welded on the top of the supporting workbench. The top of the supporting workbench is arched and supported by the padding strips, so that the sheet metal is placed stably. At the same time, the limit stop strips are located at both ends of the sheet metal, so that the sheet metal can be limited and it is not easy to deviate.

[0027] 6. The sheet metal multi-spot welding machine which is easy to position can press the pressure block by using the weight of the sheet metal itself, and move the pressure block and the connecting guide column downward under the support and guidance of the connecting guide column. When the connecting guide column moves downward, the end of the positioning square rod can be pressed downward, and under the limit connection of the pin shaft, the positioning square rod is tilted, and the positioning square rods on both sides are symmetrically tilted to form a V shape, so that the sheet metal on the top of the supporting workbench can be positioned, so that the sheet metal is always in the middle of the top of the supporting workbench and is not prone to skewing.

[0028] 7. The sheet metal multi-spot welding machine which is easy to position, with the pressing block pressing and fixing the sheet metal on the top of the supporting workbench, makes the pressure block receive the pressing force, so that the positioning square rod and the edge of the sheet metal can be fully fitted, so that the overall structure fixes the sheet metal firmly and is not easy to loosen. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the overall structure of the sheet metal multi-spot welding machine that is easy to position according to the present invention;

[0030] Figure 2 This is a schematic diagram of the bottom view of the structure of the sheet metal multi-spot welding machine that is easy to position according to the present invention;

[0031] Figure 3 It is a schematic diagram of the connection structure between the adjustment mechanism and the U-shaped protective plate of the present invention;

[0032] Figure 4 It is a schematic diagram of the back structure of the adjustment mechanism of the present invention;

[0033] Figure 5 It is a schematic diagram of the overall structure of the welding assembly of the present invention;

[0034] Figure 6 It is a schematic diagram of the overall structure of the material pressing mechanism of the present invention;

[0035] Figure 7 It is a schematic diagram of the connection structure between the support mechanism and the frame of the present invention;

[0036] Figure 8 It is a schematic diagram of the overall structure of the support mechanism of the present invention;

[0037] Fig. 9 It is a schematic diagram of the overall structure of the positioning component of the present invention.

[0038] In the figure: 1. frame; 2. U-shaped protective plate; 3. adjustment mechanism; 4. pressing mechanism; 5. supporting mechanism; 31. arc hole; 32. I-shaped slider; 33. fan-shaped plate; 34. hydraulic cylinder; 35. welding assembly; 351. connecting base; 352. right-angle plate; 353. welding host; 354. welding gun; 355. electric telescopic rod; 41. cylinder; 42. U-shaped connecting plate; 43. cylindrical roller; 44. pressing block; 45. anti-skid teeth; 51. tilting support frame; 52. supporting workbench; 53. padding strip; 54. limit stop strip; 55. positioning assembly; 551. connecting guide column; 552. pin shaft; 553. pressure block; 554. spring; 555. positioning square rod; 556. I-shaped hole. DETAILED DESCRIPTION

[0039] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0040] The first embodiment, as Figure 1-Figure 5As shown, the present invention provides a technical solution: a sheet metal multi-spot welding machine that is easy to position, comprising:

[0041] A frame 1, the frame 1 having a supporting frame body, a U-shaped protective plate 2 is fixedly installed on the top of the frame 1;

[0042] An adjusting mechanism 3, which is used to adjust the angle of the welding tool, and is installed in the middle of the U-shaped protective plate 2;

[0043] The adjusting mechanism 3 includes an arc hole 31 and an I-shaped slider 32. The arc hole 31 is provided at the side of the outer side of the U-shaped protective plate 2. The I-shaped slider 32 is slidably installed between the arc hole 31 and the U-shaped protective plate 2. A fan-shaped plate 33 is fixedly installed at the side of the outer side of the I-shaped slider 32, and the fan-shaped plate 33 is installed inside the U-shaped protective plate 2. The top of the fan-shaped plate 33 is rotatably installed between the U-shaped protective plate 2. A hydraulic cylinder 34 is rotatably installed on the outer side of the U-shaped protective plate 2 and close to the arc hole 31. The output end of the hydraulic cylinder 34 is away from the I-shaped slider 32. One side of the sector plate 33 is rotatably installed, and a welding assembly 35 is installed on the side of the sector plate 33 away from the I-shaped slider 32. The staff turns on the hydraulic cylinder 34 to work, and the extension and contraction of the output end of the hydraulic cylinder 34 can drive the I-shaped slider 32 to move, and under the guidance of the arc hole 31, the rotation point at the top of the sector plate 33 coincides with the center of the arc hole 31, so that the I-shaped slider 32 drives the sector plate 33 to rotate and adjust the angle, so that the sector plate 33 drives the welding assembly 35 to rotate as a whole, and the angle is adjusted in time;

[0044] There are two arc holes 31 , and the two arc holes 31 are symmetrically installed along the central axis in the middle of the U-shaped protective plate 2 . The hydraulic cylinder 34 is installed at an angle, so that the output end of the hydraulic cylinder 34 can be used to push the I-shaped slider 32 .

[0045] The welding assembly 35 includes a connecting base 351, which is fixedly installed with the outer side of the fan-shaped plate 33 and near the bottom by screws. A right-angle plate 352 is fixedly installed at one end of the connecting base 351 away from the fan-shaped plate 33, a welding host 353 is slidably installed in the middle of the outer side of the right-angle plate 352, a welding gun 354 is installed in the middle of the bottom of the welding host 353, and an electric telescopic rod 355 is fixedly installed at the bottom of the right-angle plate 352. The output end of the electric telescopic rod 355 is fixedly installed between the outer side of the welding host 353. Under the connection of the connecting base 351 and with the support of the right-angle plate 352, the staff turns on the electric telescopic rod 355 to work, and uses the contraction and extension of the output end of the electric telescopic rod 355 to drive the welding host 353 to move up and down, thereby driving the welding gun 354 to move together, so that the distance between the bottom end of the welding gun 354 and the sheet metal can be fine-tuned, thereby promoting the welding of the sheet metal by the welding gun 354;

[0046] At the same time, combined with the welding main machine 353 being evenly distributed on the right-angle plate 352, the welding points of the sheet metal parts can be increased by using multiple welding guns 354, so that the welding speed is fast.

[0047] The welding host 353 is evenly distributed in the middle of the outer side of the right-angle plate 352. The position of the welding host 353 corresponds to the position of the electric telescopic rod 355, so that the output end of the electric telescopic rod 355 can drive the welding host 353 and fine-tune the position of the welding host 353.

[0048] The second embodiment, as Figure 1-Figure 6 As shown, based on the first embodiment:

[0049] A pressing mechanism 4 is installed in the middle of the outer side of the U-shaped protective plate 2. The pressing mechanism 4 includes a cylinder 41. The cylinder 41 is installed on the outer side of the U-shaped protective plate 2 and close to the bottom. A U-shaped connecting plate 42 is fixedly installed at the output end of the cylinder 41. The U-shaped connecting plate 42 is slidably installed in the middle of the outer top of the U-shaped protective plate 2. Cylindrical rollers 43 are rollingly installed on both sides of the corresponding inner wall of the U-shaped connecting plate 42. The outer circumferential surface of the cylindrical roller 43 is in contact with the outer side of the U-shaped protective plate 2. A pressing mechanism 4 is fixedly installed at the bottom of the U-shaped connecting plate 42 and one end close to the welding host 353. Block 44, anti-skid teeth 45 are fixedly installed on the arc-shaped concave surface at the bottom of the pressing block 44, and the cylinder 41 is turned on to work. The U-shaped connecting plate 42 can be driven to move downward by the contraction of the output end of the cylinder 41, so that the U-shaped connecting plate 42 is clamped in the middle of the U-shaped protective plate 2, and the outer circumferential surface of the cylindrical roller 43 is fitted with the outer side of the U-shaped protective plate 2, so that the U-shaped connecting plate 42 is supported, thereby making the structure more stable, and the pressing block 44 moves downward, and the anti-skid teeth 45 are used to contact the sheet metal, so as to press and fix the sheet metal to be processed.

[0050] The cylindrical rollers 43 are evenly distributed on the two corresponding sides of the inner wall of the U-shaped connecting plate 42, and the anti-skid teeth 45 are evenly distributed on the arc-shaped concave surface at the bottom of the pressing block 44, so as to increase the contact points between the anti-skid teeth 45 and the sheet metal parts.

[0051] As the U-shaped connecting plate 42 moves downward, the cylindrical roller 43 rolls, and rolling friction is used to reduce friction resistance, so that the structures can run smoothly and are less likely to get stuck.

[0052] The third embodiment, as Figure 1-Figure 9 As shown, based on the first and second embodiments:

[0053] A support mechanism 5 is installed in the middle of the frame 1. The support mechanism 5 includes an inclined support frame 51. The bottom of the inclined support frame 51 is fixedly installed with the bottom of the inner cavity of the frame 1 by bolts. A support workbench 52 is fixedly installed on the top of the inclined support frame 51. The top of the support workbench 52 passes through the top of the inner cavity of the frame 1 and extends to the outside thereof. Gasket strips 53 are fixedly installed at the corresponding positions on the top of the support workbench 52. A limit stop strip 54 is fixedly installed at the side of the outer side of the gasket strip 53. A positioning component 55 is installed inside the support workbench 52 and near the gasket strip 53. By placing the sheet metal parts to be welded on the top of the support workbench 52, and combining the arched top of the support workbench 52, and with the support of the gasket strip 53, the sheet metal parts can be placed stably.

[0054] At the same time, by using the limit stop bars 54 at both ends of the sheet metal part, the sheet metal part can be limited in position and is not prone to deviation.

[0055] The support workbench 52 is installed in the middle of the top of the frame 1. The top of the support workbench 52 is arched to facilitate the arc-shaped sheet metal to match the top of the support workbench 52. The padding strip 53 is arc-shaped, and the limit stop strip 54 is evenly distributed on the side of the outer side of the padding strip 53.

[0056] The positioning assembly 55 includes a connecting guide column 551 and a pin 552. The connecting guide column 551 is slidably installed inside the support workbench 52 and close to the padding strip 53. The pin 552 is fixedly installed at the side of the support workbench 52. A pressure block 553 is fixedly installed on the top of the connecting guide column 551. A spring 554 is fixedly installed between the bottom of the pressure block 553 and the bottom of the inner cavity of the support workbench 52. A positioning square rod 555 is rotatably installed on the bottom end of the connecting guide column 551. A straight hole 556 is provided in the middle of the outer side of the positioning square rod 555. The pin 552 passes through the middle of the straight hole 556. When the sheet metal to be processed is placed on the support workbench, the When the top of the support workbench 52 is reached, the weight of the sheet metal itself can be used to press the pressure block 553, and under the support and guidance of the connecting guide column 551, the pressure block 553 and the connecting guide column 551 are moved downward, and the spring 554 is compressed. When the connecting guide column 551 moves downward, the end of the positioning square rod 555 can be pressed downward, and under the limiting connection of the pin shaft 552, the positioning square rod 555 is tilted, and the positioning square rods 555 on both sides are symmetrically tilted to form a V shape, so that the sheet metal on the top of the support workbench 52 can be positioned, so that the sheet metal is always in the middle of the top of the support workbench 52.

[0057] The top of the pressure block 553 is an arc-shaped surface. The pressure block 553 and the supporting workbench 52 are slidably installed, and the connecting guide column 551 passes through the center of the spring 554.

[0058] As the pressing block 44 presses and fixes the sheet metal on the top of the supporting workbench 52, the pressure block 553 is subjected to pressing force, so that the positioning square rod 555 can fully fit with the edge of the sheet metal, so that the overall structure firmly fixes the sheet metal.

[0059] There are two positioning square rods 555, and the two positioning square rods 555 are symmetrically installed along the connecting guide column 551, so that the symmetrical positioning square rods 555 on both sides can be pressed together to facilitate positioning of the sheet metal parts. The end of the positioning square rod 555 away from the connecting guide column 551 extends to the outside of the supporting workbench 52.

[0060] When in use, the staff first places the sheet metal to be processed on the top of the support workbench 52, and combined with the arched top of the support workbench 52, and under the support of the padding strip 53, the sheet metal is placed stably, and the limit stop strips 54 are located at both ends of the sheet metal, so that the sheet metal can be limited and it is not easy to deviate;

[0061] The weight of the sheet metal part itself can be used to press the pressure block 553, and under the support and guidance of the connecting guide column 551, the pressure block 553 and the connecting guide column 551 move downward, and the spring 554 is compressed. When the connecting guide column 551 moves downward, the end of the positioning square rod 555 can be pressed downward, and under the limit connection of the pin shaft 552, the positioning square rod 555 is tilted, and the positioning square rods 555 on both sides are symmetrically tilted to form a V shape, so that the sheet metal part on the top of the supporting workbench 52 can be positioned, so that the sheet metal part is always in the middle of the top of the supporting workbench 52;

[0062] At this time, the cylinder 41 is turned on to work, and the U-shaped connecting plate 42 can be driven to move downward by the contraction of the output end of the cylinder 41. As the U-shaped connecting plate 42 moves downward, the cylindrical roller 43 rolls, and rolling friction is used to reduce friction resistance, so that the structures can run smoothly and are not prone to jamming. At the same time, the U-shaped connecting plate 42 is clamped in the middle of the U-shaped protective plate 2, and the outer circumferential surface of the cylindrical roller 43 is fitted with the outer side of the U-shaped protective plate 2, so that the U-shaped connecting plate 42 is supported, so that the structures are more stable, and the pressing block 44 moves downward, and the anti-slip teeth 45 are used to contact the sheet metal to press and fix the sheet metal to be processed;

[0063] As the pressing block 44 presses and fixes the sheet metal on the top of the supporting workbench 52, the pressure block 553 is pressed, so that the positioning square rod 555 can be fully fitted with the edge of the sheet metal, so that the overall structure firmly fixes the sheet metal.

[0064] And under the connection of the connection base 351, and with the support of the right-angle plate 352, the staff turns on the electric telescopic rod 355 to work, and uses the contraction and extension of the output end of the electric telescopic rod 355 to drive the welding host 353 to move up and down, so that the welding gun 354 is driven to move together, so that the distance between the bottom end of the welding gun 354 and the sheet metal part can be finely adjusted, thereby promoting the welding of the sheet metal part by the welding gun 354;

[0065] At the same time, the welding main machine 353 is evenly distributed on the right angle plate 352, and the welding points of the sheet metal parts can be increased by multiple welding guns 354, so that the welding speed is fast;

[0066] Moreover, the staff turns on the hydraulic cylinder 34 to work, and utilizes the extension and contraction of the output end of the hydraulic cylinder 34 to drive the I-shaped slider 32 to move, and under the guidance of the arc hole 31, and utilizing the rotation point at the top of the fan-shaped plate 33 to coincide with the center of the arc hole 31, the I-shaped slider 32 drives the fan-shaped plate 33 to rotate and adjust the angle, thereby enabling the fan-shaped plate 33 to drive the welding assembly 35 to rotate as a whole, and timely adjust the angle.

[0067] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A sheet metal multi-spot welding machine that is easy to position, characterized in that: include: A frame (1), the frame (1) comprising a frame body having a supporting function, a U-shaped protective plate (2) being fixedly mounted on the top of the frame (1); An adjustment mechanism (3), the adjustment mechanism (3) being used to adjust the angle of the welding tool, the adjustment mechanism (3) being installed in the middle of the U-shaped protective plate (2); The adjusting mechanism (3) comprises an arc-shaped hole (31) and an I-shaped slider (32), wherein the arc-shaped hole (31) is formed at an outer side of the U-shaped protective plate (2), the I-shaped slider (32) is slidably mounted between the arc-shaped hole (31) and the U-shaped protective plate (2), a fan-shaped plate (33) is fixedly mounted at an outer side of the I-shaped slider (32), and the fan-shaped plate (33) is mounted inside the U-shaped protective plate (2), a top end of the fan-shaped plate (33) is rotatably mounted between the U-shaped protective plate (2), a hydraulic cylinder (34) is rotatably mounted on the outer side of the U-shaped protective plate (2) and close to the arc-shaped hole (31), an output end of the hydraulic cylinder (34) is rotatably mounted to a side of the I-shaped slider (32) away from the fan-shaped plate (33), and a welding assembly (35) is mounted on a side of the fan-shaped plate (33) away from the I-shaped slider (32); The welding assembly (35) comprises a connection base (351), the connection base (351) being fixedly mounted on the outer side of the fan-shaped plate (33) and close to the bottom by means of screws, a right-angle plate (352) being fixedly mounted on one end of the connection base (351) away from the fan-shaped plate (33), a welding main unit (353) being slidably mounted in the middle of the outer side of the right-angle plate (352), a welding gun (354) being mounted in the middle of the bottom of the welding main unit (353), an electric telescopic rod (355) being fixedly mounted on the bottom of the right-angle plate (352), and an output end of the electric telescopic rod (355) being fixedly mounted between the outer side of the welding main unit (353); A material pressing mechanism (4) is installed in the middle of the outer side of the U-shaped protective plate (2), and the material pressing mechanism (4) comprises a cylinder (41), and the cylinder (41) is installed on the outer side of the U-shaped protective plate (2) and close to the bottom position, and a U-shaped connecting plate (42) is fixedly installed at the output end of the cylinder (41), and the U-shaped connecting plate (42) is slidably installed in the middle of the outer top of the U-shaped protective plate (2), and cylindrical rollers (43) are rollingly installed on both sides of the inner wall corresponding to the U-shaped connecting plate (42), and the outer circumferential surface of the cylindrical roller (43) is in contact with the outer side of the U-shaped protective plate (2), and a pressing block (44) is fixedly installed at the bottom of the U-shaped connecting plate (42) and at one end close to the welding main machine (353), and anti-slip teeth (45) are fixedly installed on the arc-shaped concave surface of the bottom of the pressing block (44); The cylindrical rollers (43) are evenly distributed on two corresponding sides of the inner wall of the U-shaped connecting plate (42), and the anti-slip teeth (45) are evenly distributed on the arc-shaped concave surface at the bottom of the pressing block (44).

2. The sheet metal multi-spot welding machine that is easy to position according to claim 1 is characterized in that: There are two arc-shaped holes (31), and the two arc-shaped holes (31) are symmetrically installed along the central axis in the middle of the U-shaped protective plate (2), and the hydraulic cylinder (34) is installed at an angle.

3. The sheet metal multi-spot welding machine that is easy to position according to claim 1 is characterized in that: The welding main machines (353) are evenly distributed in the middle of the outer side of the right-angle plate (352), and the position of the welding main machines (353) corresponds to the position of the electric telescopic rod (355).

4. The sheet metal multi-spot welding machine that is easy to position according to claim 1 is characterized in that: A support mechanism (5) is installed in the middle of the frame (1), and the support mechanism (5) comprises an inclined support frame (51), the bottom of the inclined support frame (51) is fixedly installed with the bottom of the inner cavity of the frame (1) by bolts, and a support workbench (52) is fixedly installed on the top of the inclined support frame (51), and the top of the support workbench (52) passes through the top of the inner cavity of the frame (1) and extends to the outside thereof, and gasket strips (53) are fixedly installed at corresponding positions on the top of the support workbench (52), and a limit stop strip (54) is fixedly installed at the side of the outer side of the gasket strip (53), and a positioning component (55) is installed inside the support workbench (52) and at a position close to the gasket strip (53).

5. The sheet metal multi-spot welding machine that is easy to position according to claim 4 is characterized in that: The support workbench (52) is installed in the middle of the top of the frame (1); the top of the support workbench (52) is arched; the padding strip (53) is arc-shaped; and the limit stop strips (54) are evenly distributed on the sides of the outer sides of the padding strip (53).

6. The sheet metal multi-spot welding machine that is easy to position according to claim 4, characterized in that: The positioning assembly (55) comprises a connecting guide column (551) and a pin shaft (552), wherein the connecting guide column (551) is slidably mounted inside the supporting workbench (52) and close to the padding strip (53), and the pin shaft (552) is fixedly mounted on the side of the supporting workbench (52), a pressure block (553) is fixedly mounted on the top of the connecting guide column (551), a spring (554) is fixedly mounted between the bottom of the pressure block (553) and the bottom of the inner cavity of the supporting workbench (52), and a positioning square rod (555) is rotatably mounted on the bottom end of the connecting guide column (551), a straight hole (556) is provided in the middle of the outer side of the positioning square rod (555), and the pin shaft (552) passes through the middle of the straight hole (556).

7. The sheet metal multi-spot welding machine that is easy to position according to claim 6, characterized in that: The top of the pressure block (553) is an arc-shaped surface. The pressure block (553) is slidably mounted on the supporting workbench (52). The connecting guide column (551) passes through the center of the spring (554).

8. The sheet metal multi-spot welding machine that is easy to position according to claim 6, characterized in that: There are two positioning square rods (555), and the two positioning square rods (555) are symmetrically installed along the connecting guide column (551), and one end of the positioning square rod (555) away from the connecting guide column (551) extends to the outside of the supporting workbench (52).

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