A welding operating table for the production of aluminum alloy doors and windows

Abstract

The present invention relates to the technical field of welding equipment, and discloses a welding operation table for the production of aluminum alloy doors and windows, comprising a main body component, including a workbench, a guide rail, a mounting seat, and a laser welding machine, wherein the guide rail is fixed to the top of the workbench, the mounting seat is fixed to the guide rail, and the laser welding machine is fixed to the mounting seat; a flip assembly is arranged on one side of the workbench, and comprises a support frame arranged on one side of the workbench. The beneficial effects of the present invention are as follows: by setting the flip assembly, the aluminum alloy profile that has been preliminarily welded can be automatically flipped, so that the other surfaces of the aluminum alloy profile can be welded by the laser welding machine without manual flipping; by designing that the angular curvature of the first bevel is greater than the angular curvature of the second bevel and the third bevel, after the aluminum alloy profile is flipped, the "inflection point" of its connection is located at the top, so that the laser welding machine can weld the "inflection point".

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, in particular to a welding operating table used for the production of aluminum alloy doors and windows. Background Art

[0002] Welding is a crucial step in the production of aluminum alloy doors and windows. Traditionally, the connection between two aluminum alloy profiles relies on manual positioning and welding. This process requires workers to manually align the aluminum profiles and weld the joints with a handheld welding torch. However, because aluminum alloy profiles are often large and heavy, manual operation is not only time-consuming and labor-intensive, but also poses significant safety risks.

[0003] More importantly, after completing the welding on one side, workers need to manually flip the entire aluminum profile assembly in order to weld the other side. This flipping process not only increases the complexity of the operation, but may also cause the initial welding part to loosen or deform, thereby affecting the welding quality and the stability of the overall structure.

[0004] On the other hand, traditional welding methods often ignore the welding at the corners of aluminum profiles. The structural strength of aluminum alloy doors and windows depends to a large extent on the firmness of each connection part. The corners are the key parts of aluminum profile connection. If they are not fully welded, it will seriously affect the load-bearing capacity and service life of the entire doors and windows. However, due to the space limitations and increased welding difficulty at the corners, manual welding often cannot guarantee the welding quality of this part. Summary of the Invention

[0005] In view of the above-mentioned problems existing in the existing welding operation table used for the production of aluminum alloy doors and windows, the present invention is proposed.

[0006] Therefore, the problem to be solved by the present invention is that the welding operation in the existing aluminum alloy door and window production has the problems of complex operation and insufficient structural strength.

[0007] To solve the above technical problems, the present invention provides the following technical solutions: a welding operation table for the production of aluminum alloy doors and windows, comprising a main assembly including a workbench, a guide rail, a mounting seat, and a laser welding machine, wherein the guide rail is fixed to the top of the workbench, the mounting seat is fixed to the guide rail, and the laser welding machine is fixed to the mounting seat;

[0008] The top of the support frame is fixed with a lifting block, and the bottom of the support frame is fixed with a support column, and the bottom of the support column is fixed with a positioning block on one side of the support frame. A straight slot, a first oblique slot, a second oblique slot and a third oblique slot are provided on the positioning block. The driving column slides in the slot opened on the surface of the adjusting column, and the angular arc of the first oblique slot on the adjusting column is greater than the angular arc of the second oblique slot and the third oblique slot, and the angular arc of the second oblique slot and the third oblique slot are equal.

[0009] As a preferred solution of the welding operating table for the production of aluminum alloy doors and windows described in the present invention, the flip assembly also includes a driving part, which is arranged under the workbench, including a support plate fixed to the bottom of the workbench, a dual-axis motor is fixed to one side of the support plate, and a drive shaft is fixed to the output end of the dual-axis motor.

[0010] As a preferred solution of the welding operating table for the production of aluminum alloy doors and windows described in the present invention, a fixed plate is fixed on one side of the support frame, the drive shaft is rotatably connected to the fixed plate, a drive gear is fixed on the surface of the drive shaft, a rack is slid inside the support frame, the drive gear and the rack are engaged, and the lifting block is fixed to the top of the rack.

[0011] As a preferred solution of the welding workbench for the production of aluminum alloy doors and windows described in the present invention, the flip assembly also includes a support member, which is arranged on the top of the workbench, including a first support pad and a second support pad fixed to the top of the workbench, and a right-angle baffle is fixed on the top of the second support pad, and the two ends of the aluminum alloy profiles are both located on one side of the right-angle baffle.

[0012] As a preferred solution of the welding operating table for the production of aluminum alloy doors and windows described in the present invention, the flip assembly also includes a clamping part, which is arranged at the end of the support shaft, including a clamping seat fixed to the end of the support shaft, a through groove is opened in the clamping seat, a threaded column slides in the through groove, a positioning plate is fixed to the end of the threaded column, and a fixing nut is connected to the surface of the threaded column through threaded rotation.

[0013] As a preferred solution of the welding operating table for the production of aluminum alloy doors and windows described in the present invention, the clamping member also includes a clamping plate fixed to the top of the clamping seat, a threaded rod is connected to the clamping plate through threaded rotation, an extrusion plate is fixed to the end of the threaded rod, and a driving handle is fixed to the other end of the threaded rod.

[0014] As a preferred solution of the welding operation table for the production of aluminum alloy doors and windows described in the present invention, a non-slip pad is fixed on one side of the extrusion plate located on the aluminum alloy profile.

[0015] As a preferred solution of the welding operation table for the production of aluminum alloy doors and windows described in the present invention, the bottom of the support frame is provided with a mounting angle, and the mounting angle is fixed to the ground by bolts.

[0016] As a preferred solution of the welding workbench for aluminum alloy door and window production described in the present invention, the workbench surface is provided with grooves, and there are two grooves symmetrically arranged on the workbench surface.

[0017] As a preferred solution of the welding operation table for aluminum alloy door and window production described in the present invention, the mounting seat is a telescopic structure, and a driving source is provided in the mounting seat to drive the mounting seat to move up and down.

[0018] The beneficial effects of the present invention are as follows: by setting up a flipping assembly, the aluminum alloy profile that has been preliminarily welded can be automatically flipped, so that the other surfaces of the aluminum alloy profile can be welded by the laser welding machine without manual flipping; by designing that the angular curvature of the first bevel is greater than the angular curvature of the second bevel and the third bevel, after the aluminum alloy profile is flipped, the "inflection point" of its connection is located at the top, so that the laser welding machine can weld the "inflection point". BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort. Among them:

[0020] Figure 1 This is a structural diagram of a welding workbench used in the production of aluminum alloy doors and windows.

[0021] Figure 2 This is a cross-sectional structural diagram of the lifting block of a welding operating table used in the production of aluminum alloy doors and windows.

[0022] Figure 3 This is a cross-sectional structural diagram of the drive gear of a welding operation table used in the production of aluminum alloy doors and windows.

[0023] Figure 4 This is a cross-sectional structural diagram of the clamping seat of the welding operation table used in the production of aluminum alloy doors and windows.

[0024] Figure 5 This is the structural diagram of the right-angle baffle of the welding operation table used in the production of aluminum alloy doors and windows.

[0025] Figure 6 This is a structural diagram of the adjustment column of a welding operating table used in the production of aluminum alloy doors and windows.

[0026] Figure 7 This is a structural diagram of the third chute of a welding workbench used in the production of aluminum alloy doors and windows.

[0027] Figure 8 This is a structural diagram of the drive column of a welding operation table used in the production of aluminum alloy doors and windows. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0031] Example 1, reference Figures 1 to 8 , which is the first embodiment of the present invention, provides a welding operation table for the production of aluminum alloy doors and windows. The welding operation table for the production of aluminum alloy doors and windows includes a main component 100, including a workbench 101, a guide rail 102, a mounting seat 103 and a laser welding machine 104. The guide rail 102 is fixed to the top of the workbench 101, and the mounting seat 103 is fixed on the guide rail 102. A screw rod is provided in the guide rail 102. A driving motor can be provided on one side of the guide rail 102 to drive the screw rod in the guide rail 102 to rotate, thereby driving the mounting seat 103 fixed on the guide rail 102 to move, so that the mounting seat 103 drives the laser welding machine 104 fixed on one side thereof to move.

[0032] The flipping assembly 200 is arranged on one side of the workbench 101, and includes a support frame 201a arranged on one side of the workbench 101. A lifting block 201b is sliding in the support frame 201a. The slide in the support frame 201a can limit the lifting block 201b, so that the lifting block 201b can only be lifted and moved, and will not slide out of the support frame 201a. A support sleeve 201c is fixed to one side of the lifting block 201b, and a support shaft 201d is rotatably connected in the support sleeve 201c. The support shaft 201d can rotate stably through the support of the support sleeve 201c. An aluminum alloy profile 201n is provided on one side of the support shaft 201d. There are two support shafts 201d, and the centers of the two support shafts 201d are the same. Therefore, when the support shaft 201d rotates, it can drive the two aluminum alloy profiles 201n to flip stably without causing loosening or deformation of the preliminary welding parts of the aluminum alloy profiles 201n.

[0033] A first bevel gear 201e is fixed to the surface of the support shaft 201d, and a support base 201f is fixed to one side of the lifting block 201b. A rotating shaft 201g is rotatably connected inside the support base 201f. A second bevel gear 201h and an adjusting column 201i are fixed to the surface of the rotating shaft 201g. The first bevel gear 201e and the second bevel gear 201h are engaged. When the adjusting column 201i rotates, the rotating shaft 201g can be driven to rotate, thereby driving the second bevel gear 201h to rotate, thereby driving the support shaft 201d to rotate through the first bevel gear 201e, thereby flipping the aluminum alloy profile 201n.

[0034] A support block 201j slides inside the support frame 201a, and the rotating shaft 201g is rotatably connected to the support block 201j, so that the rotating shaft 201g can rotate stably. A support column 201k is fixed to the bottom of the support block 201j, and the bottom of the support column 201k is fixed to the top of the lifting block 201b, so that when the lifting block 201b is lifted or moved, the support block 201j can be supported by the support column 201k, so that the support block 201j can be lifted and lowered synchronously with the lifting block 201b.

[0035] A positioning block 201l is fixed to one side of the support frame 201a, and a driving column 201m is fixed to one side of the positioning block 201l. A straight slot 201i-1, a first oblique slot 201i-2, a second oblique slot 201i-3 and a third oblique slot 201i-4 ​​are provided on the surface of the adjusting column 201i. Adjacent oblique slots are connected by the straight slot 201i-1. The driving column 201m slides in the slot provided on the surface of the adjusting column 201i. When the driving column 201m slides in the slot provided on the surface of the adjusting column 201i, it can drive the adjusting column 201i to rotate. The first oblique slot 201i-2 is in the The angular curvature of the adjusting column 201i is greater than the angular curvature of the second inclined groove 201i-3 and the third inclined groove 201i-4. The angular curvature of the second inclined groove 201i-3 and the third inclined groove 201i-4 ​​are equal, so that the angle of rotation of the adjusting column 201i when the driving column 201m slides in the first inclined groove 201i-2 is greater than the angle of rotation of the adjusting column 201i when the driving column 201m slides in the second inclined groove 201i-3 and the third inclined groove 201i-4 ​​respectively. When the driving column 201m slides in the straight slot 201i-1, the adjusting column 201i will not rotate.

[0036] Specifically, when the driving column 201m slides in the first inclined groove 201i-2, the first bevel gear 201e and the second bevel gear 201h can drive the support shaft 201d to rotate 108 degrees, so that after the aluminum alloy profile 201n is flipped for the first time, the "inflection point" of its connection is located above the connection, which makes it easier for the laser welding machine 104 to weld the "inflection point", thereby improving the comprehensiveness of the welding of the connection of the aluminum alloy profile 201n and improving the structural strength of the aluminum alloy doors and windows.

[0037] When the driving column 201m slides in the second inclined groove 201i-3 and the third inclined groove 201i-4 ​​respectively, it can drive the support shaft 201d to rotate 90 degrees, so that after each flip, the "inflection point" of the connection of the aluminum alloy profile 201n is located above the connection, and the inclination angle of the connection located above is consistent, which is convenient for the laser welding machine 104 to perform welding.

[0038] Example 2, reference Figures 1 to 8 , which is the second embodiment of the present invention, and is based on the previous embodiment.

[0039] Specifically, the flip assembly 200 also includes a driving member 202, which is arranged under the workbench 101, including a support plate 202a fixed to the bottom of the workbench 101, which can support the workbench 101. A dual-axis motor 202b is fixed on one side of the support plate 202a. The dual-axis motor 202b can rotate forward and reverse, and the dual-axis motor 202b has a deceleration mechanism so that its output end can have a larger torque. A drive shaft 202c is fixed to the output end of the dual-axis motor 202b. When the dual-axis motor 202b is started, it can drive the drive shafts 202c at its two output ends to rotate in the same direction.

[0040] Specifically, a fixed plate 202d is fixed on one side of the support frame 201a, and the drive shaft 202c is rotatably connected to the fixed plate 202d. With the support of the fixed plate 202d, the drive shaft 202c can rotate stably. A drive gear 202e is fixed on the surface of the drive shaft 202c, and a rack 202f is slid inside the support frame 201a. The drive gear 202e and the rack 202f are engaged. The lifting block 201b is fixed on the top of the rack 202f. Starting the dual-axis motor 202b can make the drive shaft 202c drive the drive gear 202e to rotate, so that the drive gear 202e drives the rack 202f to move up and down, and the rack 202f drives the lifting block 201b to move up and down.

[0041] Specifically, the flip assembly 200 also includes a support member 203, which is arranged on the top of the workbench 101, including a first support pad 203a and a second support pad 203b fixed on the top of the workbench 101. The first support pad 203a and the second support pad 203b are used to support the two aluminum alloy profiles 201n. A right-angle baffle 203c is fixed on the top of the second support pad 203b. The ends of the two aluminum alloy profiles 201n are both located on one side of the right-angle baffle 203c. Through the setting of the right-angle baffle 203c, the ends of the two aluminum alloy profiles 201n can be quickly spliced ​​together.

[0042] Example 3, reference Figures 1 to 8 , which is the third embodiment of the present invention, is based on the first two embodiments.

[0043] Specifically, the flip assembly 200 also includes a clamping member 204, which is arranged at the end of the support shaft 201d, and includes a clamping seat 204a fixed to the end of the support shaft 201d. The clamping seat 204a is used to support the aluminum alloy profile 201n, and in the current illustrated state, the inner bottom wall of the clamping seat 204a and the top of the first support pad 203a are at the same height, so that the aluminum alloy profile 201n can be tightly attached to the inner bottom wall of the clamping seat 204a, thereby preventing the aluminum alloy profile 201n from shaking in the clamping seat 204a after clamping.

[0044] A through slot 204a-1 is provided in the clamping seat 204a, and a threaded column 204b slides in the through slot 204a-1. A positioning plate 204c is fixed to the end of the threaded column 204b. By adjusting the position of the threaded column 204b in the through slot 204a-1, the position of the positioning plate 204c can be adjusted, so that the positioning plate 204c can clamp and position aluminum alloy profiles 201n of different sizes. A fixing nut 204d is connected to the surface of the threaded column 204b through threaded rotation. By setting the fixing nut 204d, the threaded column 204b can be fixed, so that the positioning plate 204c can limit the aluminum alloy profile 201n.

[0045] Specifically, the clamping member 204 also includes a clamping plate 204e fixed to the top of the clamping seat 204a, and a threaded rod 204f is connected to the clamping plate 204e through a threaded rotation. An extrusion plate 204g is fixed to the end of the threaded rod 204f, and a driving handle 204h is fixed to the other end of the threaded rod 204f. By rotating the driving handle 204h, the threaded rod 204f can be driven to rotate, so that the threaded rod 204f is displaced in the clamping plate 204e, so that the threaded rod 204f can push the extrusion plate 204g close to the aluminum alloy profile 201n, so that the extrusion plate 204g clamps and fixes the aluminum alloy profile 201n.

[0046] Specifically, an anti-skid pad is fixed on one side of the extrusion plate 204g located on the aluminum alloy profile 201n. The anti-skid pad can increase the friction between the extrusion plate 204g and the aluminum alloy profile 201n, thereby preventing the aluminum alloy profile 201n from sliding after being clamped.

[0047] Specifically, the bottom of the support frame 201a is provided with a mounting angle 201a-1. There are multiple mounting angles 201a-1, which are symmetrically arranged on both sides of the support frame 201a. The mounting angles 201a-1 are fixed to the ground by bolts, thereby fixing the support frame 201a.

[0048] Specifically, the surface of the workbench 101 is provided with grooves 101-1. There are two grooves 101-1, which are symmetrically arranged on the surface of the workbench 101. The arrangement of the grooves 101-1 can provide space for the aluminum alloy profile 201n to flip over, thereby preventing the aluminum alloy profile 201n from colliding with the workbench 101 when flipping over.

[0049] Specifically, the mounting seat 103 is a telescopic mechanism, and a driving source is provided inside the mounting seat 103, which can drive the mounting seat 103 to move up and down, so that the mounting seat 103 can drive the laser welding machine 104 to move up and down, so that the laser welding machine 104 can adapt to the aluminum alloy profile 201n that is continuously rising during the flipping process.

[0050] A controller is provided on the workbench 101 to control the actions of the laser welding machine 104 , the guide rail 102 and the dual-axis motor 202 b . The controller is conventional technology and will not be described in detail here.

[0051] During use, when the aluminum alloy profile 201n needs to be welded, the aluminum alloy profile 201n is first placed on the top of the first support pad 203a and the second support pad 203b, and the two ends of the aluminum alloy profile 201n are quickly spliced ​​into place through the right-angle baffle 203c. At this time, the driving handle 204h can be rotated to drive the threaded rod 204f to rotate, so that the threaded rod 204f is displaced in the clamping plate 204e, so that the threaded rod 204f can push the extrusion plate 204g close to the aluminum alloy profile 201n, so that the extrusion plate 204g clamps and fixes the aluminum alloy profile 201n, and at this time the laser welding machine 104 welds the top of the connection of the aluminum alloy profile 201n.

[0052] After the top welding is completed, the dual-axis motor 202b is started, which can drive the driving shafts 202c of the two output ends to rotate in the same direction, so that the driving shaft 202c can drive the driving gear 202e to rotate, so that the driving gear 202e drives the rack 202f to rise, and the rack 202f drives the lifting block 201b to rise. At this time, the lifting block 201b can drive the adjusting column 201i to move upward, so that the driving column 201m slides downward relative to the straight slot 201i-1. At this time, the driving column 201m begins to enter the first The inclined groove 201i-2 drives the adjustment column 201i to rotate. The adjustment column 201i drives the support shaft 201d to rotate 108 degrees through the connection between the first bevel gear 201e and the second bevel gear 201h. As a result, after the aluminum alloy profile 201n is flipped for the first time, the "inflection point" of its connection is located above the connection, which makes it easier for the laser welding machine 104 to weld the "inflection point", thereby improving the comprehensiveness of the welding of the connection of the aluminum alloy profile 201n and improving the structural strength of the aluminum alloy doors and windows.

[0053] After the laser welding machine 104 welds this connection seam, the dual-axis motor 202b continues to rotate, causing the driving column 201m to enter the second inclined groove 201i-3. When the driving column 201m slides in the second inclined groove 201i-3, it can drive the angle of the support shaft 201d to rotate 90 degrees, so that the other "turning point" at the connection of the aluminum alloy profile 201n after flipping is also located above the connection, and the inclination angle of the connection seam located above is now the same as the previous one, which is convenient for the laser welding machine 104 to perform welding.

[0054] Similarly, the driving column 201m enters the third inclined groove 201i-4, thereby welding the last connecting seam, thereby completing the welding of the entire connection, especially the "inflection point" is also welded, so that water vapor cannot enter the interior through the connecting seam of the aluminum alloy profile 201n, and at the same time improves the structural strength of the aluminum alloy doors and windows.

[0055] After welding is completed, the dual-axis motor 202b rotates in the opposite direction to drive the aluminum alloy profile 201n to fall back onto the top of the first support pad 203a and the second support pad 203b, thereby completing the welding process on the aluminum alloy profile 201n.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A welding operation table for the production of aluminum alloy doors and windows, characterized by: include, A main body component (100) comprises a workbench (101), a guide rail (102), a mounting seat (103) and a laser welding machine (104), wherein the guide rail (102) is fixed to the top of the workbench (101), the mounting seat (103) is fixed to the guide rail (102), a screw rod is provided in the guide rail (102), and a drive motor is provided on one side of the guide rail (102); when the drive motor is started, the screw rod in the guide rail (102) can be driven to rotate, thereby driving the mounting seat (103) fixed on the guide rail (102) to move, and the laser welding machine (104) is fixed to the mounting seat (103); The flip assembly (200) is arranged on one side of the workbench (101), and comprises a support frame (201a) arranged on both sides of the workbench (101), a lifting block (201b) sliding in the support frame (201a), a support sleeve (201c) fixed on one side of the lifting block (201b), a support shaft (201d) rotatably connected in the support sleeve (201c), and an aluminum alloy profile (201n) provided on one side of the support shaft (201d). A first bevel gear (201e) is fixed to the surface of the support shaft (201d), a support seat (201f) is fixed to one side of the lifting block (201b), a rotating shaft (201g) is rotatably connected to the support seat (201f), a second bevel gear (201h) and an adjustment column (201i) are fixed to the surface of the rotating shaft (201g), a support block (201j) is slidably provided in the support frame (201a), and the rotating shaft (201g) is rotatably connected to the support seat (201f). In the support block (201j), a support column (201k) is fixed to the bottom of the support block (201j), the bottom of the support column (201k) is fixed to the top of the lifting block (201b), a positioning block (201l) is fixed to one side of the support frame (201a), a driving column (201m) is fixed to one side of the positioning block (201l), and a straight slot (201i-1), a first inclined slot (201i-2) are provided on the surface of the adjustment column (201i). ), a second inclined groove (201i-3) and a third inclined groove (201i-4), the driving column (201m) slides in a slot opened on the surface of the adjusting column (201i), the angular arc of the first inclined groove (201i-2) on the adjusting column (201i) is greater than the angular arcs of the second inclined groove (201i-3) and the third inclined groove (201i-4), and the angular arcs of the second inclined groove (201i-3) and the third inclined groove (201i-4) are equal; The flip assembly (200) further includes a support member (203), the support member (203) being arranged on the top of the workbench (101), and comprising a first support pad (203a) and a second support pad (203b) fixed to the top of the workbench (101), a right-angle baffle (203c) being fixed on the top of the second support pad (203b), and the ends of the two aluminum alloy profiles (201n) are both located on one side of the right-angle baffle (203c); The flip assembly (200) further includes a clamping member (204), which is arranged at the end of the support shaft (201d) and includes a clamping seat (204a) fixed to the end of the support shaft (201d), and the clamping seat (204a) is used to support the aluminum alloy profile (201n).

2. The welding operation table for aluminum alloy door and window production according to claim 1, characterized in that: The flip assembly (200) further includes a driving member (202), which is arranged below the workbench (101) and includes a support plate (202a) fixed to the bottom of the workbench (101), a dual-axis motor (202b) fixed to one side of the support plate (202a), and a driving shaft (202c) fixed to the output end of the dual-axis motor (202b).

3. The welding operation table for aluminum alloy door and window production according to claim 2, characterized in that: A fixed plate (202d) is fixed to one side of the support frame (201a), the drive shaft (202c) is rotatably connected to the fixed plate (202d), a drive gear (202e) is fixed to the surface of the drive shaft (202c), a rack (202f) slides inside the support frame (201a), the drive gear (202e) and the rack (202f) are engaged, and the lifting block (201b) is fixed to the top of the rack (202f).

4. The welding operation table for aluminum alloy door and window production according to claim 3, characterized in that: The clamping member (204) further comprises a through slot (204a-1) provided in the clamping seat (204a), a threaded column (204b) slidingly arranged in the through slot (204a-1), a positioning plate (204c) being fixed to the end of the threaded column (204b), and a fixing nut (204d) being rotatably connected to the surface of the threaded column (204b) via a thread.

5. The welding operation table for aluminum alloy door and window production according to claim 4, characterized in that: The clamping member (204) further comprises a clamping plate (204e) fixed to the top of the clamping seat (204a), a threaded rod (204f) being connected to the clamping plate (204e) by threaded rotation, an extrusion disc (204g) being fixed to the end of the threaded rod (204f), and a driving handle (204h) being fixed to the other end of the threaded rod (204f).

6. The welding operation table for aluminum alloy door and window production according to claim 5, characterized in that: The extrusion plate (204g) is located on one side of the aluminum alloy profile (201n) and is fixed with an anti-slip pad.

7. The welding operation table for aluminum alloy door and window production according to claim 5 or 6, characterized in that: The bottom of the support frame (201a) is provided with a mounting angle (201a-1), and the mounting angle (201a-1) is fixed to the ground by means of bolts.

8. The welding operation table for aluminum alloy door and window production according to claim 7, characterized in that: The surface of the workbench (101) is provided with grooves (101-1), and there are two grooves (101-1) symmetrically arranged on the surface of the workbench (101).

9. The welding operation table for aluminum alloy door and window production according to claim 8, characterized in that: The mounting seat (103) is a telescopic structure, and a driving source is provided in the mounting seat (103) to drive the mounting seat (103) to move upward and downward.

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