Sheet metal part welding tool and welding method thereof

Abstract

The invention discloses a sheet metal part welding tool and a welding method thereof, relates to the technical field of sheet metal part machining, and aims to solve the technical problem that when a current welding tool fixes a sheet metal part, the sheet metal part is prone to damage and deformation, and the sheet metal part welding tool comprises a workbench, welding equipment installed on the workbench and a movable machining platform assembly installed on the workbench. The workpiece taking assemblies are mounted on the two sides of the workbench; the part taking assembly comprises mechanical arms installed on the two sides of the workbench and adsorption assemblies installed at the output ends of the mechanical arms. The adsorption assembly comprises an adsorption plate, adsorption holes, a guide pipe and a vacuum pump; a cavity is formed in the adsorption plate, and the multiple adsorption holes are formed in one side of the adsorption plate and distributed in an annular array mode. The sheet metal parts are grabbed in a vacuum adsorption mode, and the appearance quality and the surface integrity of the sheet metal parts can be kept easily.

Description

Technical Field

[0001] The present invention relates to the technical field of sheet metal processing, and more specifically, to a sheet metal welding tool and a welding method thereof. Background Art

[0002] Sheet metal parts refer to thin metal products processed by sheet metal technology. Sheet metal technology mainly involves cutting, bending, forming, welding and other operations on metal plates (such as steel plates, aluminum plates, copper plates, etc.), thereby transforming the original flat materials into parts with specific shapes and functions. These parts are widely used in many fields such as machinery manufacturing, automobile industry, electronic equipment, aerospace, etc. Sheet metal parts often need to be welded by welding tools during processing.

[0003] However, traditional welding tools often use mechanical clamping devices to fix the workpiece by applying clamping force to the workpiece through mechanical structure. During the clamping process, the part where the clamp contacts the workpiece surface will generate greater pressure. For some soft sheet metal parts or workpieces with high surface accuracy requirements, this pressure can easily leave indentations on the workpiece surface. For example, when processing some high-precision electronic equipment housing sheet metal parts, the clamping of the mechanical clamp may damage the flatness of its appearance and affect the product quality. Moreover, if the clamping force is uneven or too large, it may also cause the workpiece to deform, change the original shape and dimensional accuracy of the workpiece, and cause problems in subsequent processing or assembly. Therefore, it is particularly important to provide a welding tool that reduces damage when fixing sheet metal parts. In view of this, we propose a sheet metal welding tool and a welding method thereof. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art, meet actual needs, and provide a sheet metal welding tool and a welding method thereof to solve the technical problem that the current welding tool easily causes damage and deformation of the sheet metal when fixing the sheet metal.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a sheet metal welding tool, comprising a workbench, a welding device installed on the workbench, a movable processing platform component installed on the workbench, and a pick-up component installed on both sides of the workbench;

[0006] The pickup assembly includes a mechanical arm installed on both sides of the workbench, and an adsorption assembly installed at the output end of the mechanical arm;

[0007] The adsorption assembly includes an adsorption plate, adsorption holes, a conduit, and a vacuum pump; a cavity is provided inside the adsorption plate, a plurality of the adsorption holes are provided on one side of the adsorption plate and are distributed in a circular array, the adsorption holes connect the cavity with the outside, the conduit is connected to the cavity, and the other end of the conduit is connected to the suction end of the vacuum pump, and the vacuum pump is installed on the top of the workbench.

[0008] Preferably, the movable processing platform assembly includes a table, a universal support joint, a corner column, a traction cable, a cable reel, and a first servo motor;

[0009] The universal support joint is installed at the bottom end of the table top, and the other end of the universal support joint is installed on the workbench. The four corner columns are respectively installed at the four corners of the bottom end of the table top. The traction cable is embedded in the corner column, and the other end of the traction cable is wound on a cable wheel. The cable wheel is installed on the output end of the first servo motor, and the first servo motor is installed on the workbench.

[0010] Preferably, the pickup assembly further comprises a blocking assembly, and the blocking assembly comprises a blocking rod, an annular groove, a spring groove, a spring, and a buckle block;

[0011] The blocking rod is slidably connected in the adsorption hole, and one end of the blocking rod passes through the other side of the adsorption plate and extends to the outside. The annular groove is opened at the other end of the blocking rod, and a plurality of spring grooves are equidistantly arranged radially on the annular groove. The rod body of the snap block is slidably connected in the spring groove, and the rod body of the snap block is connected to the spring groove through a spring. The snap block is a fan-shaped structure, and the annular structure composed of a plurality of snap blocks is adapted to the annular groove.

[0012] Preferably, the picking component further comprises a blocking control component, and the blocking control component comprises a second servo motor, a gear, a gear ring, and a linear drive motor;

[0013] The second servo motor is mounted on the adsorption plate, the gear is mounted on the output end of the second servo motor, the inner side of the gear ring is meshed with the gear, and the linear drive motor is mounted on the outer side of the gear ring.

[0014] Preferably, a pushing block is installed at the output end of the linear drive motor, the pushing block is provided with a second inclined surface, and the second inclined surface is adapted to the first inclined surface, the pushing block pushes a follower block through the second inclined surface and the first inclined surface, and the first inclined surface is provided on the follower block, and the follower block is connected to one end of the blocking rod.

[0015] Preferably, the blocking control assembly further includes a limiting ring groove and a limiting rod;

[0016] The limiting ring groove is arranged on one side of the gear ring, a plurality of the limiting rods are slidably connected in the limiting ring groove, and the plurality of limiting rods are equidistantly arranged in a ring shape, and the limiting rods are mounted on the adsorption plate.

[0017] Preferably, the pick-up assembly further includes a blocking and resetting assembly, and the blocking and resetting assembly includes a first housing, a third servo motor, and a rocker arm;

[0018] The third servo motor is installed in the first housing, the rocker arm is installed at the output end of the third servo motor, and the axis of the output end of the third servo motor coincides with the axis of the adsorption plate, and a plurality of reset rods are equidistantly installed at the front end of the rocker arm, and the plurality of reset rods correspond one by one to a plurality of limit rods on the radial direction of the adsorption plate.

[0019] Preferably, the blocking and resetting assembly further comprises a cylinder, a first connecting rod, a second housing, a fourth servo motor, and a second connecting rod;

[0020] The cylinder is installed on the outside of the adsorption plate, the first connecting rod is installed on the output end of the cylinder, the other end of the first connecting rod is installed on the output end of the fourth servo motor, the fourth servo motor is installed in the second shell, the second connecting rod is installed on the second shell, and the other end of the second connecting rod is installed on the first shell.

[0021] Preferably, the blocking and resetting assembly further includes a cylinder, a first connecting rod, a second housing, a fourth servo motor, and a second connecting rod;

[0022] The cylinder is installed on the outside of the adsorption plate, the first connecting rod is installed on the output end of the cylinder, the other end of the first connecting rod is installed on the output end of the fourth servo motor, the fourth servo motor is installed in the second shell, the second connecting rod is installed on the second shell, and the other end of the second connecting rod is installed on the first shell.

[0023] Preferably, a positioning ball groove is provided at the head end of the reset rod, the positioning ball groove is adapted to be equipped with a positioning ball head, and the positioning ball head is connected to the other end of the blocking rod.

[0024] A welding method for a sheet metal welding tool comprises the following steps:

[0025] S1: Adsorption loading. When welding normal sheet metal parts, the adsorption assembly is driven by the robot arm to move to the loading position of the sheet metal parts. The vacuum pump creates negative pressure in the adsorption plate through the conduit, and adsorbs the sheet metal parts through the adsorption holes, driving the sheet metal parts to move to the movable processing platform assembly.

[0026] S2: table adaptation: the first servo motor works to drive the cable reel to rotate, the cable reel drives the traction cable to move, the traction cable pulls the corner column to move, the corner column drives the table to deflect on the universal support joint, so as to adapt to the bottom end of the sheet metal, and cooperate with the mechanical arm and the adsorption component to adjust the sheet metal to be welded to a suitable welding position;

[0027] S3: Hole position limited suction. When welding smaller sheet metal parts, the second servo motor drives the gear to rotate, the gear drives the gear ring, the gear ring drives the linear drive motor to rotate, and the linear drive motor drives the push block to move, so that the push block pushes the outer blocking rod into the adsorption hole through the follower block. The blocking rod passes through the adsorption hole, and the spring pushes the buckle block to pop up and buckle the blocking rod. The blocking rod blocks the outer adsorption holes that do not play an adsorption role, ensuring that the remaining adsorption holes can work normally.

[0028] S4: Restore suction. When welding normal sheet metal parts again, the fourth servo motor drives the second connecting rod to rotate downward, the third servo motor drives the rocker arm to rotate, and the rocker arm drives the reset rod to rotate. After the rocker arm rotates a certain angle, the cylinder drives the rocker arm to move through the first connecting rod, so that the reset rod is inserted into the adsorption hole, pushing back the blocking rod, so that the adsorption hole is connected again, and the adsorption effect is provided again.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. The present invention provides an adsorption plate with a cavity and a vacuum pump. The vacuum pump can form a negative pressure inside the adsorption plate, so that the adsorption plate can play an adsorption role when it is attached to the external sheet metal. Compared with traditional mechanical clamps, vacuum adsorption does not need to directly clamp the surface of the sheet metal, thereby avoiding scratches, indentations and other damages to the surface of the sheet metal during the grasping and fixing process. The present invention uses vacuum adsorption to grasp the sheet metal, which helps to maintain the appearance quality and surface integrity of the sheet metal.

[0031] 2. The present invention sets a movable processing platform component, and the table of the movable processing platform component can be tilted at any angle, so as to cooperate with the mechanical arm that clamps the sheet metal to adjust the position of the sheet metal. In the welding process of the sheet metal, it is sometimes necessary to tilt the sheet metal at a certain angle to ensure that the weld is in the best position and facilitate the operation of the welding tool. This function of tilting at any angle can meet the requirements of different welding processes and complex weld shapes. Whether it is flat welding, vertical welding or oblique welding, the ideal welding position can be achieved by adjusting the table angle. The present invention can meet the requirements of different welding processes and complex weld shapes by adopting a movable processing platform component.

[0032] 3. The present invention cooperates with the spring, the annular groove and the buckle block to make the buckle block contract when the blocking rod passes through the adsorption hole, and the buckle block extends after passing through the adsorption hole to limit the movement of the blocking rod. This precise position limiting effect can ensure that the blocking rod remains in a specific position during blocking, thereby ensuring the stable blocking state of the adsorption hole. The present invention can prevent the blocking rod from accidentally moving due to slight external vibrations or other interference factors through the limiting effect of the buckle block, thereby ensuring the blocking effect of the blocking rod and preventing the sheet metal parts on the adsorption plate from falling off.

[0033] 4. The present invention sets a blocking control component. When it is necessary to grab a smaller sheet metal part, the blocking control component can selectively block the adsorption holes according to the size of the sheet metal part. When grabbing a smaller sheet metal part, the adsorption holes that cannot function are blocked by control, leaving only the adsorption holes in contact with the sheet metal part to generate adsorption force. This precise control method can ensure that the adsorption force is concentrated in the effective area, avoiding the situation where the adsorption force is dispersed due to too many adsorption holes and the small sheet metal part cannot be effectively grabbed. The present invention can selectively block the adsorption holes through the blocking control component, thereby ensuring the strength of the adsorption force when adsorbing small sheet metal parts.

[0034] 5. The present invention sets a blocking reset component, in which the reset rod corresponds one-to-one to the limit rod on the radial direction of the adsorption plate. During the reset process, the blocking rod can accurately return to the initial position, that is, the state of not blocking the adsorption hole. When it is necessary to switch the grabbing of sheet metal parts of different sizes, or after completing the processing of a sheet metal part, it is necessary to reopen the previously blocked adsorption hole, the reset rod can accurately push the blocking rod according to the preset position relationship, so that the adsorption hole returns to a normal working state, ensuring that the next adsorption operation can be carried out normally. The precise reset function of the present invention enables the pickup component to quickly switch between the blocked and non-blocked states, improving the adaptability of the equipment to different processing scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of the present invention;

[0036] Figure 2 It is a structural schematic diagram of the movable processing platform assembly of the present invention;

[0037] Figure 3 It is a structural schematic diagram of the adsorption component of the present invention;

[0038] Figure 4 It is a structural schematic diagram of the adsorption component of the present invention when the blocking component is extended;

[0039] Figure 5 It is a structural schematic diagram of the plugging assembly of the present invention;

[0040] Figure 6 It is a schematic cross-sectional structural diagram of the plugging assembly of the present invention;

[0041] Figure 7 It is a structural schematic diagram of the blocking control component of the present invention;

[0042] Figure 8 It is a structural schematic diagram of the other side of the blocking control component of the present invention;

[0043] Fig. 9 It is a structural schematic diagram of the blocking and resetting assembly of the present invention;

[0044] Fig.10 This is a diagram showing the use state of the present invention when adsorbing sheet metal parts.

[0045] Description of the numbers in the figure:

[0046] 1. Workbench; 2. Welding equipment; 3. Movable processing platform assembly; 4. Pick-up assembly;

[0047] 301, table; 302, universal support joint; 303, corner column; 304, traction cable; 305, cable reel; 306, first servo motor;

[0048] 401, mechanical arm; 402, adsorption component; 403, blocking component; 404, blocking control component; 405, blocking reset component;

[0049] 4021, adsorption plate; 4022, adsorption hole; 4023, conduit; 4024, vacuum pump;

[0050] 4031, blocking rod; 4032, annular groove; 4033, spring groove; 4034, spring; 4035, buckle block; 4036, follower block; 4037, positioning ball head;

[0051] 4041, second servo motor; 4042, gear; 4043, gear ring; 4044, linear drive motor; 4045, push block; 4046, limit ring groove; 4047, limit rod;

[0052] 4051, first housing; 4052, third servo motor; 4053, rocker arm; 4054, reset rod; 4055, cylinder; 4056, first connecting rod; 4057, second housing; 4058, fourth servo motor; 4059, second connecting rod; 4054a, positioning ball groove. DETAILED DESCRIPTION

[0053] Embodiment 1, as Figures 1 to 4As shown, the present invention relates to a sheet metal welding tool, including a workbench 1, a welding device 2 installed on the workbench 1, a movable processing platform component 3 installed on the workbench 1, and a pick-up component 4 installed on both sides of the workbench 1; the pick-up component 4 includes a mechanical arm 401 installed on both sides of the workbench 1, and an adsorption component 402 installed at the output end of the mechanical arm 401; the adsorption component 402 includes an adsorption plate 4021, An adsorption hole 4022, a conduit 4023, and a vacuum pump 4024 are provided; a cavity is provided inside the adsorption plate 4021, a plurality of the adsorption holes 4022 are provided on one side of the adsorption plate 4021, and are distributed in a circular array, the adsorption holes 4022 connect the cavity with the outside, the conduit 4023 is connected to the cavity, the other end of the conduit 4023 is connected to the suction end of the vacuum pump 4024, and the vacuum pump 4024 is installed on the top of the workbench 1.

[0054] The present invention provides an adsorption plate 4021 with a cavity and a vacuum pump 4024. The vacuum pump 4024 can form a negative pressure inside the adsorption plate 4021, so that the adsorption plate 4021 can play an adsorption role when it is attached to an external sheet metal part. Compared with traditional mechanical clamps, vacuum adsorption does not need to directly clamp the surface of the sheet metal part, thereby avoiding scratches, indentations and other damages to the surface of the sheet metal part during the grasping and fixing process. The present invention uses vacuum adsorption to grasp the sheet metal part, which helps to maintain the appearance quality and surface integrity of the sheet metal part.

[0055] Specifically, Figure 1 to Figure 2 As shown, the movable processing platform assembly 3 of the present invention includes a table top 301, a universal support joint 302, a corner column 303, a traction cable 304, a cable reel 305, and a first servo motor 306; the universal support joint 302 is installed at the bottom end of the table top 301, and the other end of the universal support joint 302 is installed on the workbench 1, and four corner columns 303 are respectively installed at the four corners of the bottom end of the table top 301, the traction cable 304 is embedded in the corner column 303, and the other end of the traction cable 304 is wound around the cable reel 305, and the cable reel 305 is installed on the output end of the first servo motor 306, and the first servo motor 306 is installed on the workbench 1.

[0056] The present invention sets a movable processing platform assembly 3, and the table 301 of the movable processing platform assembly 3 can be tilted at any angle, so as to cooperate with the mechanical arm 401 that clamps the sheet metal to adjust the position of the sheet metal. In the welding process of the sheet metal, it is sometimes necessary to tilt the sheet metal at a certain angle to ensure that the weld is in the best position and facilitate the operation of the welding tool. This function of tilting at any angle can meet the requirements of different welding processes and complex weld shapes. Whether it is flat welding, vertical welding or oblique welding, the ideal welding position can be achieved by adjusting the angle of the table 301. The present invention can meet the requirements of different welding processes and complex weld shapes by adopting the movable processing platform assembly 3.

[0057] It is worth mentioning that Figures 4 to 6 As shown, the picking component 4 of the present invention also includes a blocking component 403, which includes a blocking rod 4031, an annular groove 4032, a spring groove 4033, a spring 4034, and a snap block 4035; the blocking rod 4031 is slidably connected in the adsorption hole 4022, and one end of the blocking rod 4031 passes through the other side of the adsorption plate 4021 and extends to the outside, the annular groove 4032 is opened at the other end of the blocking rod 4031, and four spring grooves 4033 are equidistantly arranged radially on the annular groove 4032, the rod body of the snap block 4035 is slidably connected in the spring groove 4033, and the rod body of the snap block 4035 is connected to the spring groove 4033 through the spring 4034, the snap block 4035 is a fan-shaped structure, and the annular structure composed of four snap blocks 4035 is adapted to the annular groove 4032.

[0058] The present invention cooperates with the spring 4034, the annular groove 4032 and the buckle block 4035 to make the buckle block 4035 contract when the blocking rod 4031 passes through the adsorption hole 4022, and the buckle block 4035 extends after passing through the adsorption hole 4022, thereby limiting the movement of the blocking rod 4031. This precise position limiting effect can ensure that the blocking rod 4031 remains at a specific position during blocking, thereby ensuring the stable blocking state of the adsorption hole 4022. The present invention can prevent the blocking rod 4031 from accidentally moving due to slight external vibration or other interference factors through the limiting effect of the buckle block 4035, thereby ensuring the blocking effect of the blocking rod 4031 and preventing the sheet metal parts on the adsorption plate 4021 from falling off.

[0059] Further, such as Figure 7 to Figure 8As shown, the picking component 4 of the present invention also includes a blocking control component 404, which includes a second servo motor 4041, a gear 4042, a ring gear 4043, and a linear drive motor 4044; the second servo motor 4041 is installed on the adsorption plate 4021, the gear 4042 is installed at the output end of the second servo motor 4041, the inner side of the ring gear 4043 is meshed with the gear 4042, and the linear drive motor 4044 is installed on the outer side of the ring gear 4043; a pushing block 4045 is installed at the output end of the linear drive motor 4044, and a second inclined surface is provided on the pushing block 4045, and the second inclined surface is adapted to the first inclined surface, and the pushing block 4045 pushes a follower block 4036 through the second inclined surface and the first inclined surface, and the first inclined surface is provided on the follower block 4036, and the follower block 4036 is connected to one end of the blocking rod 4031.

[0060] Among them, the blocking control component 404 also includes a limiting ring groove 4046 and a limiting rod 4047; the limiting ring groove 4046 is arranged on one side of the ring gear 4043, and four limiting rods 4047 are slidably connected in the limiting ring groove 4046, and the four limiting rods 4047 are equidistantly arranged in a ring shape, and the limiting rods 4047 are installed on the adsorption plate 4021.

[0061] The present invention sets a blocking control component 404. When it is necessary to grab a smaller sheet metal part, the blocking control component 404 can selectively block the adsorption holes 4022 according to the size of the sheet metal part. When grabbing a smaller sheet metal part, the adsorption holes 4022 that cannot function are blocked by control, leaving only the adsorption holes 4022 in contact with the sheet metal part to generate adsorption force. This precise control method can ensure that the adsorption force is concentrated in the effective area, avoiding the situation where the adsorption force is dispersed due to too many adsorption holes 4022 and the small sheet metal part cannot be effectively grabbed. The present invention can selectively block the adsorption holes 4022 through the blocking control component 404, thereby ensuring the strength of the adsorption force when adsorbing small sheet metal parts.

[0062] Further, if Fig. 9 As shown, the pick-up assembly 4 of the present invention further includes a blocking and resetting assembly 405, which includes a first housing 4051, a third servo motor 4052, a rocker arm 4053, and a resetting rod 4054; the third servo motor 4052 is installed in the first housing 4051, the rocker arm 4053 is installed at the output end of the third servo motor 4052, and the axis of the output end of the third servo motor 4052 coincides with the axis of the adsorption plate 4021. Five resetting rods 4054 are equidistantly installed at the front end of the rocker arm 4053, and the five resetting rods 4054 correspond to the five limit rods 4047 on the radial direction of the adsorption plate 4021.

[0063] Among them, the blocking and resetting assembly 405 also includes a cylinder 4055, a first connecting rod 4056, a second shell 4057, a fourth servo motor 4058, and a second connecting rod 4059; the cylinder 4055 is installed on the outside of the adsorption plate 4021, the first connecting rod 4056 is installed on the output end of the cylinder 4055, the other end of the first connecting rod 4056 is installed on the output end of the fourth servo motor 4058, the fourth servo motor 4058 is installed in the second shell 4057, the second connecting rod 4059 is installed on the second shell 4057, and the other end of the second connecting rod 4059 is installed on the first shell 4051.

[0064] The present invention sets a blocking reset component 405, and the reset rod 4054 in the blocking reset component 405 corresponds to the limit rod 4047 on the radial direction of the adsorption plate 4021. During the reset process, the blocking rod 4031 can accurately return to the initial position, that is, the state of not blocking the adsorption hole 4022. When it is necessary to switch the gripping of sheet metal parts of different sizes, or after completing the processing of a sheet metal part, it is necessary to reopen the previously blocked adsorption hole 4022, the reset rod 4054 can accurately push the blocking rod 4031 according to the preset position relationship, so that the adsorption hole 4022 returns to a normal working state, ensuring that the next adsorption operation can be carried out normally. The precise reset function of the present invention enables the pick-up component 4 to quickly switch between the blocked and non-blocked states, thereby improving the adaptability of the device to different processing scenarios.

[0065] Embodiment 2, as Figures 1 to 10 As shown, a welding method for a sheet metal welding tool comprises the following steps:

[0066] S1: When welding a normal sheet metal part, the mechanical arm 401 drives the adsorption assembly 402 to move, and the adsorption assembly 402 moves to the loading position of the sheet metal part. The vacuum pump 4024 creates negative pressure in the adsorption plate 4021 through the conduit 4023, and adsorbs the sheet metal part through the adsorption hole 4022, driving the sheet metal part to move to the movable processing platform assembly 3;

[0067] S2: The first servo motor 306 works to drive the cable reel 305 to rotate, the cable reel 305 drives the traction cable 304 to move, the traction cable 304 pulls the corner post 303 to move, and the corner post 303 drives the table 301 to deflect on the universal support joint 302, so as to adapt to the bottom end of the sheet metal part, and cooperate with the mechanical arm 401 and the adsorption component 402 to adjust the sheet metal part to be welded to a suitable welding position;

[0068] S3: When welding a smaller sheet metal part, the second servo motor 4041 drives the gear 4042 to rotate, the gear 4042 drives the gear ring 4043, the gear ring 4043 drives the linear drive motor 4044 to rotate, and the linear drive motor 4044 drives the push block 4045 to move, so that the push block 4045 pushes the outer blocking rod 4031 into the adsorption hole 4022 through the follower block 4036, the blocking rod 4031 passes through the adsorption hole 4022, the spring 4034 pushes the buckle block 4035 to pop out, buckles the blocking rod 4031, and the blocking rod 4031 blocks the outer adsorption holes 4022 that do not play an adsorption role, ensuring that the remaining adsorption holes 4022 can work normally;

[0069] S4: When normal sheet metal parts are welded again, the fourth servo motor 4058 drives the second connecting rod 4059 to rotate downward, the third servo motor 4052 drives the rocker arm 4053 to rotate, and the rocker arm 4053 drives the reset rod 4054 to rotate. After the rocker arm 4053 rotates a certain angle, the cylinder 4055 drives the rocker arm 4053 to move through the first connecting rod 4056, so that the reset rod 4054 is inserted into the adsorption hole 4022, and the blocking rod 4031 is pushed back, so that the adsorption hole 4022 is connected again, and the adsorption effect is provided again.

[0070] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A sheet metal welding tool, characterized in that: It comprises a workbench (1), a welding device (2) installed on the workbench (1), a movable processing platform component (3) installed on the workbench (1), and a pick-up component (4) installed on both sides of the workbench (1); The picking component (4) comprises a mechanical arm (401) installed on both sides of the workbench (1), and an adsorption component (402) installed at the output end of the mechanical arm (401); The adsorption assembly (402) comprises an adsorption plate (4021), adsorption holes (4022), a conduit (4023), and a vacuum pump (4024); a cavity is provided inside the adsorption plate (4021); a plurality of adsorption holes (4022) are provided on one side of the adsorption plate (4021) and are distributed in a ring array; the adsorption holes (4022) connect the cavity with the outside; the conduit (4023) is connected to the cavity; the other end of the conduit (4023) is connected to the suction end of the vacuum pump (4024); and the vacuum pump (4024) is installed on the top of the workbench (1).

2. A sheet metal welding tool according to claim 1, characterized in that: The movable processing platform assembly (3) comprises a table (301), a universal support joint (302), a corner column (303), a traction cable (304), a cable reel (305), and a first servo motor (306); The universal support joint (302) is mounted at the bottom end of the table top (301), the other end of the universal support joint (302) is mounted on the workbench (1), the four corner columns (303) are respectively mounted at the four corners of the bottom end of the table top (301), the traction cable (304) is embedded in the corner column (303), the other end of the traction cable (304) is wound around a cable reel (305), the cable reel (305) is mounted on the output end of a first servo motor (306), and the first servo motor (306) is mounted on the workbench (1).

3. A sheet metal welding tool according to claim 2, characterized in that: The removing component (4) further comprises a blocking component (403), wherein the blocking component (403) comprises a blocking rod (4031), an annular groove (4032), a spring groove (4033), a spring (4034), and a buckle block (4035); The blocking rod (4031) is slidably connected in the adsorption hole (4022), and one end of the blocking rod (4031) passes through the other side of the adsorption plate (4021) and extends to the outside. The annular groove (4032) is opened at the other end of the blocking rod (4031), and a plurality of spring grooves (4033) are equidistantly arranged radially on the annular groove (4032). The rod body of the snap block (4035) is slidably connected in the spring groove (4033), and the rod body of the snap block (4035) is connected to the spring groove (4033) through a spring (4034). The snap block (4035) is a fan-shaped structure, and the annular structure composed of a plurality of snap blocks (4035) is adapted to the annular groove (4032).

4. A sheet metal welding tool according to claim 3, characterized in that: The picking component (4) further comprises a blocking control component (404), wherein the blocking control component (404) comprises a second servo motor (4041), a gear (4042), a gear ring (4043), and a linear drive motor (4044); The second servo motor (4041) is mounted on the adsorption plate (4021), the gear (4042) is mounted on the output end of the second servo motor (4041), the inner side of the gear ring (4043) is meshed with the gear (4042), and the linear drive motor (4044) is mounted on the outer side of the gear ring (4043).

5. The sheet metal welding tool according to claim 4, characterized in that: A pushing block (4045) is installed at the output end of the linear drive motor (4044), and a second inclined surface is provided on the pushing block (4045), and the second inclined surface is adapted to be equipped with a first inclined surface. The pushing block (4045) pushes a follower block (4036) through the second inclined surface and the first inclined surface, and the first inclined surface is provided on the follower block (4036), and the follower block (4036) is connected to one end of the blocking rod (4031).

6. The sheet metal welding tool according to claim 5, characterized in that: The blocking control assembly (404) further comprises a limiting ring groove (4046) and a limiting rod (4047); The limiting ring groove (4046) is arranged on one side of the gear ring (4043), and a plurality of limiting rods (4047) are slidably connected in the limiting ring groove (4046), and the plurality of limiting rods (4047) are equidistantly arranged in a ring shape, and the limiting rods (4047) are installed on the adsorption plate (4021).

7. The sheet metal welding tool according to claim 6, characterized in that: The piece removal assembly (4) further comprises a blocking and resetting assembly (405), wherein the blocking and resetting assembly (405) comprises a first housing (4051), a third servo motor (4052), and a rocker arm (4053); The third servo motor (4052) is installed in the first housing (4051), the rocker arm (4053) is installed at the output end of the third servo motor (4052), and the axis of the output end of the third servo motor (4052) coincides with the axis of the adsorption plate (4021), and a plurality of reset rods (4054) are equidistantly installed at the front end of the rocker arm (4053), and the plurality of reset rods (4054) correspond one-to-one to a plurality of limit rods (4047) on the radial direction of the adsorption plate (4021).

8. The sheet metal welding tool according to claim 7, characterized in that: The blocking and resetting assembly (405) further comprises a cylinder (4055), a first connecting rod (4056), a second housing (4057), a fourth servo motor (4058), and a second connecting rod (4059); The cylinder (4055) is installed on the outside of the adsorption plate (4021), the first connecting rod (4056) is installed on the output end of the cylinder (4055), the other end of the first connecting rod (4056) is installed on the output end of the fourth servo motor (4058), the fourth servo motor (4058) is installed in the second shell (4057), the second connecting rod (4059) is installed on the second shell (4057), and the other end of the second connecting rod (4059) is installed on the first shell (4051).

9. The sheet metal welding tool according to claim 8, characterized in that: The head end of the reset rod (4054) is provided with a positioning ball groove (4054a), and the positioning ball groove (4054a) is adapted to be equipped with a positioning ball head (4037), and the positioning ball head (4037) is connected to the other end of the blocking rod (4031).

10. A welding method for sheet metal welding tooling according to claim 9, characterized in that: The steps include: S1: adsorption loading. When welding a normal sheet metal part, the mechanical arm (401) drives the adsorption component (402) to move, and the adsorption component (402) moves to the loading position of the sheet metal part. The vacuum pump (4024) creates negative pressure in the adsorption plate (4021) through the conduit (4023), and adsorbs the sheet metal part through the adsorption hole (4022), and drives the sheet metal part to move to the movable processing platform component (3); S2: table top adaptation, the first servo motor (306) works to drive the cable reel (305) to rotate, the cable reel (305) drives the traction cable (304) to move, the traction cable (304) pulls the corner post (303) to move, the corner post (303) drives the table top (301) to deflect on the universal support joint (302), thereby adapting to the bottom end of the sheet metal part, and cooperating with the mechanical arm (401) and the adsorption component (402) to adjust the sheet metal part to be welded to a suitable welding position; S3: hole position limiting suction, when welding a smaller sheet metal part, the second servo motor (4041) drives the gear (4042) to rotate, the gear (4042) drives the gear ring (4043), the gear ring (4043) drives the linear drive motor (4044) to rotate, the linear drive motor (4044) drives the push block (4045) to move, so that the push block (4045) pushes the outer blocking rod (4031) into the suction hole (4022) through the follower block (4036), the blocking rod (4031) passes through the suction hole (4022), the spring (4034) pushes the buckle block (4035) to pop out, buckles the blocking rod (4031), and the blocking rod (4031) blocks the outer suction holes (4022) that do not play a suction role, ensuring that the remaining suction holes (4022) can work normally; S4: Restore suction. When normal sheet metal parts are welded again, the fourth servo motor (4058) drives the second connecting rod (4059) to rotate downward, the third servo motor (4052) drives the rocker arm (4053) to rotate, and the rocker arm (4053) drives the reset rod (4054) to rotate. After the rocker arm (4053) rotates a certain angle, the cylinder (4055) drives the rocker arm (4053) to move through the first connecting rod (4056), so that the reset rod (4054) is inserted into the suction hole (4022), and the blocking rod (4031) is pushed back, so that the suction hole (4022) is connected again, and the suction effect is provided again.

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