A sheet metal welding processing device

Abstract

The present application discloses a sheet metal welding processing device, and relates to the technical field of welding devices. The present application includes a welding gun, and also includes: a suction cup lifting frame, on the movable end of which a cylinder push rod is detachably connected; a rotating member, including a rotating column fixedly connected to one side of the welding gun, in which a plug rod fixedly connected to the movable end of the cylinder push rod is movably inserted, and a limiter for limiting the rotation of the rotating column is connected to the plug rod; a swinging member, which is installed between the cylinder push rod and the rotating column and is used for the reciprocating rotation of the rotating column. The present application can drive the height of the cylinder push rod to be adjusted through the suction cup lifting frame, and the cylinder push rod is vertically arranged with the suction cup lifting frame, so as to adjust the horizontal position of the welding gun, thereby driving the welding gun to move straight and automatically, which is more accurate than manually moving the welding gun for welding, and increases the accuracy of welding.

Description

Technical Field

[0001] The present application relates to the technical field of welding devices, and in particular to a sheet metal welding processing device. Background Art

[0002] Sheet metal is a comprehensive cold processing technology for thin metal plates, including shearing, punching / cutting / combining, folding, welding, riveting, splicing, forming, etc. Its notable feature is that the thickness of the same part is consistent. The product processed by sheet metal technology is called sheet metal parts. Welding, also known as fusion, is a process of joining metals by heating, high temperature or high pressure.

[0003] Since sheet metal parts are thin and have various shapes, manual welding requires high concentration and experience to ensure welding accuracy. When factory equipment is welding, it uses automatic operation and relies on the robot to change the angle of the sheet metal parts to complete the welding. The welding accuracy is high and manpower is saved. However, the equipment used for welding sheet metal parts in factory equipment is large and cannot be carried. It cannot be used outside the factory and has poor flexibility. When manual welding of sheet metal parts, the edge of the sheet metal parts is usually required to maintain a certain straight line. It is difficult to ensure accuracy only by relying on experience. In addition, the interface of some sheet metal parts needs to expand the welding range. At this time, different welding patterns, such as corrugated welding tracks, are needed to increase the welding strength. However, the existing manual welding using this track is prone to errors and cannot ensure welding accuracy, thus affecting the connection strength after welding.

[0004] Therefore, the present invention proposes a sheet metal welding processing device that can increase welding accuracy and is convenient to carry and flexible to use. Summary of the invention

[0005] The purpose of this application is to solve the problems in the above-mentioned background technology, and this application provides a sheet metal welding processing device.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0007] A sheet metal welding processing device, comprising a welding gun, and further comprising:

[0008] A suction cup lifting frame, wherein a cylinder push rod is detachably connected to the movable end of the suction cup lifting frame;

[0009] The rotating member comprises a rotating column fixedly connected to one side of the welding gun, wherein an insert rod fixedly connected to the movable end of the cylinder push rod is movably inserted in the rotating column, and a limiting member for limiting the rotation of the rotating column is connected to the insert rod;

[0010] A swinging member, installed between the cylinder push rod and the rotating column and used for reciprocating rotation of the rotating column;

[0011] The clamping piece comprises a clamping plate which is detachably sleeved on the fixed end of the cylinder push rod, a plug hole is configured at the bottom of the clamping plate, and a stabilizing piece for connecting with the plug hole is installed on the suction cup lifting frame.

[0012] Furthermore, the suction cup lifting frame includes a column frame, the bottom of the column frame is open and the end is fixedly connected to a rubber suction cup, the middle part of the rubber suction cup is configured with a through pipe, the top of the column frame is fixedly connected to a column tube, a piston rod is slidably inserted in the column tube, and a suction pipe that runs through the column tube is connected between the piston rod and the bottom of the column tube.

[0013] Furthermore, it also includes a pneumatic component for controlling the operation of the cylinder push rod and the suction cup lifting frame, the pneumatic component includes an electromagnetic reversing valve fixedly connected to the column frame, one side of the electromagnetic reversing valve is connected to the through pipe and the suction pipe, the other end of the electromagnetic reversing valve is respectively connected to a hose and an air pump, and the other end of the hose is connected to the cylinder push rod.

[0014] Furthermore, the limiting member includes a convex ring constructed in the middle of the insertion rod, the insertion rod is provided with a ring cap movably connected to the convex ring, a supporting spring is connected between the inner bottom of the ring cap and the convex ring, and the other end of the ring cap is constructed with a connecting nut connected to the rotating column.

[0015] Furthermore, a plurality of grooves are configured in a circumferential array at one end of the convex ring opposite to the rotating column, and a protrusion configured at the end of the rotating column for contacting with the grooves.

[0016] Furthermore, the swinging member includes a U-shaped frame connected to the fixed end of the cylinder push rod, a rack is constructed on one side of the U-shaped frame, a driving gear meshing with the rack is rotatably installed on the movable end of the cylinder push rod, a connecting rod is eccentrically hinged on the driving gear, an eccentric disk is fixedly sleeved on the rotating column, and the other end of the connecting rod is hinged to the eccentric disk.

[0017] Furthermore, one end of the U-shaped frame is hinged to the fixed end of the cylinder push rod, and a limiting block located below the hinged end of the U-shaped frame is constructed on the fixed end of the cylinder push rod.

[0018] Furthermore, the connecting rod includes a column hinged on the eccentric disk, a cross tube is fixedly connected to the column, an inner rod is slidably inserted in the cross tube, a fixing button is threaded through the cross tube and abuts against the inner rod, a slide groove is constructed on the driving gear and is arranged in the length direction toward its center, and the other end of the inner rod is hinged with a slider slidably installed in the slide groove.

[0019] Furthermore, the clamping plate includes a ring that is slidably sleeved on the fixed end of the cylinder push rod, the side surface of the ring is threaded with an interference screw button, the bottom of the ring is connected to an L-shaped top plate through a universal joint, the bottom of the L-shaped top plate is slidingly sleeved with a bottom plate, and the L-shaped top plate is rotatably installed with an adjustment screw that is threaded through the bottom plate.

[0020] Furthermore, the plug-in hole is constructed on the base plate, and the stabilizing member includes an L-shaped connecting plate fixedly connected to the upper end of the piston rod, and the bottom of the L-shaped connecting plate is constructed with a sliding sleeve slidably mounted on the column tube, and a stabilizing rod is hinged on the sliding sleeve, and the other end of the stabilizing rod is movably inserted in the plug-in hole and abuts against the L-shaped top plate.

[0021] The beneficial effects of this application are as follows:

[0022] The present application can adjust the height of the cylinder push rod through the suction cup lifting frame, and the cylinder push rod is vertically arranged to the suction cup lifting frame, so as to adjust the horizontal position of the welding gun, thereby driving the welding gun to move straight and automatically. Compared with manually moving the welding gun for welding, it is more precise and increases the accuracy of welding.

[0023] The present application provides a swinging part so that the welding gun head can swing left and right while the cylinder push rod pushes the welding gun to move horizontally, thereby increasing the weld opening. Compared with manual welding, it is more precise, ensures welding strength, and increases the functionality and applicability of the device.

[0024] The present application can utilize a clamp to install a cylinder push rod on the edge of a sheet metal part, and through the cylinder push rod, set a welding gun on the edge of another identical sheet metal part, and then manually push the device to enable the welding gun to accurately weld along the edge of the sheet metal part, thereby increasing the flexibility of the device and improving welding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional structural diagram of this application;

[0026] Figure 2 It is a half-section diagram of the three-dimensional structure of the present application;

[0027] Figure 3 This is a three-dimensional structural diagram of the suction cup lifting frame of the present application;

[0028] Figure 4 This application Figure 3 Half-section view of the three-dimensional structure;

[0029] Figure 5 This is a half-section diagram of the three-dimensional structure of the welding gun of the present application;

[0030] Figure 6 It is a partial cross-sectional view of the three-dimensional structure of the clamping member of the present application;

[0031] Figure 7 This is an exploded view of the three-dimensional structure of the rotating part of this application;

[0032] Figure 8 This is a three-dimensional structural diagram of the swing member of the present application;

[0033] Fig. 9 This application Figure 8 The enlarged view of point A in the middle;

[0034] Figure numerals: 1, welding gun; 2, suction cup lifting frame; 201, column frame; 202, rubber suction cup; 203, through pipe; 204, column tube; 205, piston rod; 206, suction pipe; 3, cylinder push rod; 301, limit block; 4, rotating member; 401, rotating column; 4011, groove; 4012, convex block; 402, plug rod; 403, limit member; 4031, convex ring; 4032, ring cap; 4033, support spring; 4034, connecting nut; 5, swing member; 501, U-shaped frame; 502, rack; 503, driving gear; 504, connecting rod ;5041, column; 5042, cross tube; 5043, inner rod; 5044, fixing screw; 5045, slide groove; 5046, slider; 505, eccentric disk; 6, clamping part; 601, clamping plate; 6011, collar; 6012, resistance screw; 6013, L-shaped top plate; 6014, bottom plate; 6015, adjusting screw; 602, plug hole; 603, stabilizing part; 6031, L-shaped connecting plate; 6032, sliding sleeve; 6033, stabilizing rod; 7, pneumatic part; 701, electromagnetic reversing valve; 702, hose; 703, air pump; 8, universal joint. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0036] Embodiment 1

[0037] like Figure 1-Figure 5 As shown, a sheet metal welding processing device proposed in the first embodiment of the present application includes a welding gun 1 and also includes:

[0038] A suction cup lifting frame 2, a cylinder push rod 3 is detachably connected to the moving end of the suction cup lifting frame 2, wherein one end of the suction cup lifting frame 2 is a suction cup fixed end, which is used to stabilize the device on the ground or on a wall, so as to ensure the stable movement of the welding gun 1, increase the safety of the device, and ensure the welding accuracy. The suction cup lifting frame 2 is mainly used to adjust the movement in one direction, and the cylinder push rod 3 is vertically set up with the suction cup lifting frame 2, and is used to control the movement in another direction, so as to ensure the flexible movement of the welding gun 1;

[0039] The rotating member 4 includes a rotating column 401 fixedly connected to one side of the welding gun 1, a plug rod 402 fixedly connected to the moving end of the cylinder push rod 3 is movably inserted in the rotating column 401, and a limiting member 403 for limiting the rotation of the rotating column 401 is connected to the plug rod 402. The rotating member 4 can rotatably connect the welding gun 1 to the moving end of the cylinder push rod 3, and can limit the position of the welding gun 1 after rotation through the limiting member 403, so as to adjust the orientation angle of the welding gun 1 and increase the flexibility of the device, and the limiting member 403 is also used to limit the plug rod 402 on the welding gun 1 at the same time, so as to prevent the welding gun 1 from detaching from the device and increase safety, and the limiting member 403 can be used to detach the welding gun 1 later, so as to facilitate the hand-held use of personnel, and further increase the flexibility of the device;

[0040] The swing member 5 is installed between the cylinder push rod 3 and the rotating column 401 and is used for the rotating column 401 to reciprocate. The swing member 5 is mainly used to reciprocate while the welding gun 1 moves along a straight line, so as to modify the welding route into a wavy shape, increase the welding mouth range, and thus improve the welding strength;

[0041] The clamping member 6 includes a clamping plate 601 which is detachably mounted on the fixed end of the cylinder push rod 3. A plug hole 602 is configured at the bottom of the clamping plate 601. A stabilizing member 603 for connecting to the plug hole 602 is installed on the suction cup lifting frame 2. On the one hand, the clamping member 6 can clamp the fixed end of the cylinder push rod 3 on an object separately, so as to increase the flexibility of the device and facilitate fixation. On the other hand, the clamping member 6 can be used as a kit and connected to a sheet metal part. Then, the extension and retraction of the cylinder push rod 3 can be used to make the welding gun 1 contact the edge of another identical sheet metal part. Then, the cylinder push rod 3 can be pushed to move along the edge of the sheet metal part so that the welding gun 1 can perform precise welding operations on the edge of another sheet metal part, thereby increasing the adaptability of the device.

[0042] like Figure 3-Figure 4 As shown, in the first embodiment, the suction cup lifting frame 2 includes a column frame 201, the bottom of the column frame 201 is open and the end is fixedly connected to a rubber suction cup 202, a through pipe 203 is constructed in the middle of the rubber suction cup 202, and a column cylinder 204 is fixedly connected to the top of the column frame 201. A piston rod 205 is slidably inserted in the column cylinder 204, and a suction pipe 206 that penetrates the column cylinder 204 is connected between the piston rod 205 and the bottom of the column cylinder 204. It should be noted that the rubber suction cup 202 is more than one centimeter thick and is made of soft rubber. It completely closes the column frame 201 and the bottom edge protrudes from the column frame 201. When the device needs to be adsorbed on a wall or the ground, the rubber suction cup 202 can be first pressed tightly against its surface. The thicker soft rubber can adapt to slightly uneven surfaces. Then, the through pipe 203 is used to extract the gas in the rubber suction cup 202, so that the rubber suction cup 202 is gradually contracted toward the column frame 201, and the negative pressure is used to increase the adsorption force to ensure the stable fixation of the device.

[0043] like Figure 3 As shown, in the first embodiment, a pneumatic component 7 for controlling the operation of the cylinder push rod 3 and the suction cup lifting frame 2 is also included. The pneumatic component 7 includes an electromagnetic reversing valve 701 fixedly connected to the column frame 201. One side of the electromagnetic reversing valve 701 is connected to the through pipe 203 and the suction pipe 206. The other end of the electromagnetic reversing valve 701 is respectively connected to a hose 702 and an air pump 703. The other end of the hose 702 is connected to the cylinder push rod 3. The setting of the hose 702 is convenient for moving with the piston rod 205 to avoid obstruction and ensure the safety of the operation of the device. It should be noted that the only driving component in the device is the air pump 703. The electromagnetic reversing valve 701 can be used to change the flow direction of the gas. When the rubber suction cup 202 needs to be used, the electromagnetic reversing valve 701 connects the air pump 703 with the through pipe 203. When the piston rod 205 is in operation, the air pump 703 is connected to the suction pipe 206, and when the cylinder push rod 3 is in operation, the air pump 703 is connected to the hose 702.

[0044] Embodiment 2

[0045] like Figure 5 and Figure 7 As shown, this embodiment further improves the present application on the basis of the first embodiment. Considering that the welding gun should be used for welding the edges of sheet metal parts of different shapes and needs to adjust the angle, in the second embodiment, the stopper 403 includes a convex ring 4031 constructed in the middle of the insertion rod 402, and a ring cap 4032 movably sleeved on the convex ring 4031 is sleeved on the insertion rod 402. A supporting spring 4033 is connected between the inner bottom of the ring cap 4032 and the convex ring 4031, and the other end of the ring cap 4032 is constructed with a connecting nut 4034 sleeved with the rotating column 401. It should be noted that when the welding gun 1 needs to rotate relative to the moving end of the cylinder push rod 3, the connecting nut 4034 and the rotating column 401 are semi-threadedly connected. At this time, the convex ring 4031 It does not interfere with the rotating column 401, and the bottom side of the convex ring 4031 is supported by the ring cap 4032 and the support spring 4033, which can ensure the connection between the rotating column 401 and the insertion rod 402, prevent disengagement, and enable the rotating column 401 to rotate relative to the insertion rod 402. When it is necessary to fix its angle, the connecting nut 4034 can be used to thread the rotating column 401 until the convex ring 4031 is tightly in contact with the rotating column 401. The double contact force of the connecting nut 4034 and the support spring 4033 is used to increase the friction force, thereby ensuring the stability of the limit. The adjustment operation is convenient, and the rotation and fixed states can be switched by only turning the connecting nut 4034, which increases convenience.

[0046] like Figure 7As shown, in the second embodiment, a plurality of grooves 4011 are constructed along a circumferential array at one end of the convex ring 4031 opposite to the rotating column 401, and a protrusion 4012 for interfering with the groove 4011 is constructed at the end of the rotating column 401. The protrusion 4012 and the groove 4011 are arranged so that a clamping contact can be formed after the rotating column 401 and the convex ring 4031 interfere with each other, thereby further increasing the blocking force therebetween and ensuring the stability of the limit.

[0047] Embodiment 3

[0048] like Figure 8-Figure 9 As shown, this embodiment further improves the present application on the basis of the second embodiment. Considering the need to expand the width of the welding track, in the third embodiment, the swinging member 5 includes a U-shaped frame 501 connected to the fixed end of the cylinder push rod 3, and a rack 502 is constructed on one side of the U-shaped frame 501. A driving gear 503 meshing with the rack 502 is rotatably installed on the moving end of the cylinder push rod 3. A connecting rod 504 is eccentrically hinged on the driving gear 503. An eccentric disk 505 is fixedly sleeved on the rotating column 401. The other end of the connecting rod 504 is hinged to the eccentric disk 505. When the cylinder push rod 3 drives the welding gun 1 When moving, the U-shaped frame 501 keeps its position unchanged, and the moving end of the cylinder push rod 3 will simultaneously drive the driving gear 503 to move, so that the driving gear 503 and the rack 502 are meshed, thereby driving the connecting rod 504 and the eccentric disk 505 hinged thereon to produce a crank-connecting rod movement, so as to drive the eccentric disk 505 to flip back and forth, without the need for additional driving force, saving costs and resources. It should be noted that when the swinging member 5 is in use, the convex ring 4031 does not conflict with the rotating column 401, and the driving gear 503 is relied on to control the reciprocating rotation of the rotating column 401.

[0049] like Figure 1 and Figure 8 As shown, in Example 3, one end of the U-shaped frame 501 is hinged to the fixed end of the cylinder push rod 3, and a limit block 301 is constructed on the fixed end of the cylinder push rod 3 and is located below the hinged end of the U-shaped frame 501. The limit blocks 301 are located below both sides of the hinge point and are respectively used to support the flipped U-shaped frame 501 to play a limiting role. When a wavy welding pattern is required, the U-shaped frame 501 can be flipped to one side of the welding gun 1. When a straight welding pattern is required, the U-shaped frame 501 needs to be flipped to the other side to avoid affecting the movement of the welding gun 1. The state conversion between the two is convenient, which increases the flexibility of the device.

[0050] like Fig. 9As shown in the third embodiment, the connecting rod 504 includes a column 5041 hinged on the eccentric disk 505, a transverse tube 5042 is fixedly connected to the column 5041, an inner rod 5043 is slidably inserted in the transverse tube 5042, a fixing screw 5044 is threadedly installed on the transverse tube 5042 and abuts against the inner rod 5043, a slide groove 5045 is configured on the driving gear 503 and is arranged in a length direction toward the center of the circle, and the other end of the inner rod 5043 is hinged with a screw thread 5044 slidably installed in the slide groove 5045. The slider 5046 in the 5 can form a telescopic mechanism by setting the connecting rod 504 as a cross tube 5042 and an inner rod 5043 that are plugged into each other. The hinge point position of one end of the connecting rod 504 on the driving gear 503 can be adjusted by cooperating with the slider 5046, and fixed by a fixing screw 5044, so as to adjust the angle of a single reciprocating rotation of the rotating column 401, so as to control the flipping distance of the welding gun 1, so as to adapt to welding ports of different sizes and increase the flexibility of the device.

[0051] Embodiment 4

[0052] like Figure 6 As shown, this embodiment further improves the present application on the basis of the third embodiment. Considering that the processing site is sometimes narrow and insufficient to fully expose and fix the device, in the fourth embodiment, the clamping plate 601 includes a collar 6011 slidably sleeved on the fixed end of the cylinder push rod 3, and a resistance screw button 6012 is installed through the thread on the side of the collar 6011, and the bottom of the collar 6011 is connected to an L-shaped top plate 6013 through a universal joint 8, wherein the universal joint 8 includes a column ball, an arc sleeve is sleeved at the bottom of the column ball, and a limiting bolt for fixing the position of the column ball is threaded on the arc sleeve, and the bottom sliding sleeve of the L-shaped top plate 6013 is provided with a bottom plate 6014, and a threaded bottom screw is rotatably installed on the L-shaped top plate 6013. The adjusting screw button 6015 of the plate 6014 should be noted that mounting grooves are constructed on the opposite surfaces of the L-shaped top plate 6013 and the bottom plate 6014, and different materials can be connected as needed. When it is necessary to use the L-shaped top plate 6013 and the bottom plate 6014 to clamp the sheet metal for sliding, talc blocks can be installed therein to reduce friction and facilitate movement. When the device needs to be fixed, magnets or rubber blocks can be installed therein to increase friction. The position of the ring 6011 on the cylinder push rod 3 can be adjusted by the abutment screw button 6012, and the adjusting screw button 6015 is used to adjust the distance between the fixed L-shaped top plate 6013 and the bottom plate 6014 to increase the flexibility of the device.

[0053] Embodiment 5

[0054] like Figure 2 and Figure 6As shown, this embodiment further improves the present application on the basis of the fourth embodiment. Considering that the higher the lifting height of the suction cup lifting frame 2 is, the worse the stability of the welding gun 1 is, in the fifth embodiment, the plug hole 602 is constructed on the bottom plate 6014, and the stabilizing member 603 includes an L-shaped connecting plate 6031 fixedly connected to the upper end of the piston rod 205. The bottom of the L-shaped connecting plate 6031 is constructed with a sliding sleeve 6032 slidably mounted on the column 204, and a stabilizing rod 6033 is hinged on the sliding sleeve 6032. The other end of the stabilizing rod 6033 is movably inserted in the plug hole 602 and abuts against the L-shaped top plate 6013. The stabilizing member 603 is mainly used to increase the lifting height of the suction cup lifting frame 2 The stability of the rear cylinder push rod 3 prevents the welding gun 1 from shaking too much during welding operation, thereby affecting the welding accuracy and increasing safety. It should be noted that the L-shaped connecting plate 6031 can rise with the rise of the piston rod 205 as the first support point, and the sliding sleeve 6032 at its bottom is always mounted on the column 204 as the second support point. When the piston rod 205 rises to a certain height, if the material strength is insufficient, it is necessary to flip the stabilizing rod 6033 to insert it into the plug hole 602 and contact it on the L-shaped top plate 6013 to form a third support point, thereby forming a triangular structure to increase stability, ensure the stability of the welding gun 1 when it moves, and ensure welding accuracy.

[0055] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sheet metal welding processing device, comprising a welding gun (1), characterized in that: Also includes: A suction cup lifting frame (2), wherein a cylinder push rod (3) is detachably connected to the movable end of the suction cup lifting frame (2); The rotating member (4) comprises a rotating column (401) fixedly connected to one side of the welding gun (1), an insert rod (402) fixedly connected to the movable end of the cylinder push rod (3) being movably inserted in the rotating column (401), and a limiting member (403) for limiting the rotation of the rotating column (401) being connected to the insert rod (402); A swinging member (5) is installed between the cylinder push rod (3) and the rotating column (401) and is used for the rotating column (401) to reciprocate; The clamping member (6) comprises a clamping plate (601) which is detachably sleeved on the fixed end of the cylinder push rod (3), the bottom of the clamping plate (601) is provided with a plug hole (602), and a stabilizing member (603) for connecting with the plug hole (602) is installed on the suction cup lifting frame (2); The swinging member (5) comprises a U-shaped frame (501) connected to the fixed end of the cylinder push rod (3), a rack (502) is constructed on one side of the U-shaped frame (501), a driving gear (503) meshing with the rack (502) is rotatably mounted on the movable end of the cylinder push rod (3), a connecting rod (504) is eccentrically hinged on the driving gear (503), an eccentric disk (505) is fixedly sleeved on the rotating column (401), and the other end of the connecting rod (504) is hinged to the eccentric disk (505); One end of the U-shaped frame (501) is hinged to the fixed end of the cylinder push rod (3), and a limit block (301) is constructed on the fixed end of the cylinder push rod (3) and is located below the hinged end of the U-shaped frame (501); The connecting rod (504) comprises a column (5041) hinged on the eccentric disk (505), a transverse tube (5042) fixedly connected to the column (5041), an inner rod (5043) slidably inserted in the transverse tube (5042), a fixing screw (5044) threadedly penetrated and installed on the transverse tube (5042) and abutted against the inner rod (5043), a sliding groove (5045) arranged in the length direction toward the center of the circle of the driving gear (503), and a sliding block (5046) slidably installed in the sliding groove (5045) is hingedly connected to the other end of the inner rod (5043).

2. A sheet metal welding processing device according to claim 1, characterized in that: The suction cup lifting frame (2) comprises a column frame (201), the bottom of the column frame (201) is open and the end is fixedly connected to a rubber suction cup (202), the middle of the rubber suction cup (202) is configured with a through pipe (203), the top of the column frame (201) is fixedly connected to a column cylinder (204), a piston rod (205) is slidably inserted in the column cylinder (204), and a suction pipe (206) that penetrates the column cylinder (204) is connected between the piston rod (205) and the bottom of the column cylinder (204).

3. A sheet metal welding processing device according to claim 2, characterized in that: It also includes a pneumatic component (7) for controlling the operation of the cylinder push rod (3) and the suction cup lifting frame (2), the pneumatic component (7) including an electromagnetic reversing valve (701) fixedly connected to the column frame (201), one side of the electromagnetic reversing valve (701) is connected to the through pipe (203) and the suction pipe (206), the other end of the electromagnetic reversing valve (701) is respectively connected to a hose (702) and an air pump (703), and the other end of the hose (702) is connected to the cylinder push rod (3).

4. The sheet metal welding processing device according to claim 1, characterized in that: The limiting member (403) comprises a convex ring (4031) constructed in the middle of the insertion rod (402); a ring cap (4032) is sleeved on the insertion rod (402) and movably sleeved on the convex ring (4031); a supporting spring (4033) is connected between the inner bottom of the ring cap (4032) and the convex ring (4031); and a connecting nut (4034) sleeved on the rotating column (401) is constructed at the other end of the ring cap (4032).

5. The sheet metal welding processing device according to claim 4, characterized in that: The end of the convex ring (4031) opposite to the rotating column (401) is configured with a plurality of grooves (4011) in a circumferential array, and the end of the rotating column (401) is configured with a convex block (4012) for abutting against the groove (4011).

6. The sheet metal welding processing device according to claim 1, characterized in that: The clamping plate (601) comprises a collar (6011) slidably sleeved on the fixed end of the cylinder push rod (3); a side surface of the collar (6011) is threadedly penetrated with an abutment screw button (6012); the bottom of the collar (6011) is connected to an L-shaped top plate (6013) via a universal joint (8); a bottom plate (6014) is slidably sleeved on the bottom of the L-shaped top plate (6013); and an adjustment screw button (6015) threadedly penetrated with the bottom plate (6014) is rotatably installed on the L-shaped top plate (6013).

7. The sheet metal welding processing device according to claim 6, characterized in that: The plug-in hole (602) is constructed on the bottom plate (6014), and the stabilizing member (603) includes an L-shaped connecting plate (6031) fixedly connected to the upper end of the piston rod (205), and the bottom of the L-shaped connecting plate (6031) is constructed with a sliding sleeve (6032) slidably mounted on the column (204), and a stabilizing rod (6033) is hinged on the sliding sleeve (6032), and the other end of the stabilizing rod (6033) is movably inserted into the plug-in hole (602) and abuts against the L-shaped top plate (6013).

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