Aluminum alloy door and window processing welding tooling

Abstract

The application provides a welding tool for aluminum alloy door and window processing and belongs to the technical field of door and window welding. The tool comprises a rack, a fixed plate and a movable plate which can slide horizontally arranged on the top of the rack, a horizontal driving assembly arranged on the rack and used to drive the movable plate to move, a fixed table and a movable table which can slide vertically arranged on the top of the fixed plate and the movable plate, a vertical moving assembly arranged on the fixed plate and the movable plate and used to drive the movable table to move, and a jig arranged on the top of the fixed table and the movable table. The tool uses a single driving source to cooperate with a mechanical linkage mechanism to realize the lateral and vertical double-direction fixing of the profile synchronously. Each jig is driven by a second cylinder only. The linkage mechanism which is composed of a sliding seat, a guide plate fixed on the sliding seat, an inclined constraint groove and a driving shaft fixed on a sliding rod converts the horizontal linear motion output by the second cylinder into the lateral pushing and tightening and the vertical pressing of the profile, thereby avoiding the misalignment of the profile caused by the asynchronous operation of multiple drivers.

Description

Technical Field

[0001] This invention relates to the field of door and window welding technology, and in particular to a welding fixture for processing aluminum alloy doors and windows. Background Technology

[0002] During the manufacturing process of aluminum alloy doors and windows, four profiles cut at a 45-degree angle are usually assembled into a rectangular frame and welded at the corners. To ensure welding accuracy and quality, special tooling is used to accurately position and clamp the assembled door and window frame before welding. Common welding tooling usually includes clamps for supporting and positioning the profiles to prevent deformation or misalignment of the profiles under welding heat input.

[0003] In the prior art, welding fixtures often use multiple independent actuators (such as lateral cylinders and vertical cylinders) to perform clamping actions separately. This design leads to complex pneumatic pipelines and control circuits, and the multiple actuators have inherent differences in their actions. Affected by fluctuations in air source pressure, pipeline impedance and load changes, their actions are difficult to achieve precise synchronization. This results in uneven force on the profile during clamping, which can easily cause local misalignment, torsional deformation or residual stress, affecting the assembly accuracy of the welded joint. Therefore, this application provides a welding fixture for aluminum alloy door and window processing to meet the requirements. Summary of the Invention

[0004] The purpose of this invention is to provide a welding fixture for aluminum alloy door and window processing to solve the above-mentioned problems. It uses a single drive source in conjunction with a mechanical linkage mechanism to simultaneously achieve lateral and vertical bidirectional fixing of the profile. Each fixture is driven by only one second cylinder. Through the linkage mechanism, the horizontal linear motion output by the second cylinder is converted into lateral pushing and vertical pressing of the profile. This avoids the problem of profile misalignment caused by asynchronous operation of multiple drive units. It solves the problem mentioned in the background art: multiple independent drive units perform clamping actions separately, and their actions are difficult to achieve precise synchronization. This leads to uneven force on the profile during clamping, which easily causes local misalignment, torsional deformation or residual stress, affecting the assembly accuracy of the welded joint.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A welding fixture for processing aluminum alloy doors and windows includes a frame. The top of the frame has a fixed plate and a laterally sliding movable plate. A lateral drive assembly for moving the movable plate is mounted on the frame. Both the fixed plate and the movable plate have a fixed platform and a longitudinally sliding movable platform on their tops. Both the fixed plate and the movable plate have longitudinal movement assemblies for moving the movable platform. A jig is mounted on the top of both the fixed platform and the movable platform. The jig includes a fixed corner seat fixed to the top of the fixed platform and the movable platform. A sliding seat is slidably mounted on the top of the fixed corner seat, and the sliding seat has symmetrical sliding connections inside. The device is equipped with a sliding rod, the top of which is fixedly connected to a pressure plate. Guide plates are symmetrically fixedly connected to the top of the sliding seat. When the sliding seat slides horizontally, the sliding rod and pressure plate slide vertically downwards under the constraint of the guide plates. This design allows the fixture to be independently adjusted horizontally and vertically, enabling four fixtures to quickly adapt to door and window frames of different lengths and widths, improving the equipment's versatility and adjustment efficiency. Simultaneously, through a horizontal driving action, under the mechanical constraint of the guide plates, the lateral pushing and vertical pressing of the profile are simultaneously achieved, solving the fixation problem in two directions with a single power source.

[0006] Based on the above scheme, the pressure plate is internally threaded with a screw, and the bottom of the screw is rotatably connected to a pressure plate, which is used to adjust the downward pressure of the pressure plate on the profile. By rotating the screw, the height of the pressure plate can be changed, thereby precisely controlling the vertical clamping force on the profile, so that the tooling can adapt to profiles of different thicknesses or conditions.

[0007] It is worth mentioning that a fixed plate is sleeved on the outside of the slide rod, and a tension spring is fixedly connected to the outside of the slide rod and between the fixed plate and the top plate of the sliding seat. The function of the tension spring is to provide an upward restoring force to ensure that the pressure plate is lifted in the non-working state, which facilitates the loading and unloading of the profile. During the pressing process, the tension spring is compressed, which can play a buffering role and avoid rigid impact damage to the surface of the profile.

[0008] Furthermore, the guide plate has an inclined constraint groove inside, and a drive shaft is fixedly connected inside the slide rod. One end of the drive shaft extends into the constraint groove and slides inside it. When the slide seat moves horizontally, the inclined constraint groove wall forces the drive shaft to slide along the groove, thereby forcibly and accurately converting the horizontal movement into the vertical movement of the slide rod.

[0009] Furthermore, a second cylinder is fixedly connected to the bottom of the fixed angle seat, and a second connecting plate is fixedly connected to the bottom of the sliding seat, with the telescopic end of the second cylinder fixedly connected to one side of the second connecting plate.

[0010] Compared with the prior art, the present invention has at least the following beneficial effects: In the above solution, the welding fixture for aluminum alloy door and window processing provided in this application uses a single drive source in conjunction with a mechanical linkage mechanism to simultaneously achieve lateral and vertical bidirectional fixation of the profile. Each fixture is driven by only one second cylinder. Through the linkage mechanism consisting of a sliding seat, a guide plate fixed thereon, an inclined constraint groove, and a drive shaft fixed on the slide rod, the horizontal linear motion output by the second cylinder is converted into lateral pushing and vertical pressing of the profile, thus avoiding the problem of profile misalignment caused by asynchronous operation of multiple drive units. The screw and pressure plate on the pressure plate form a height fine-tuning mechanism, which can accurately set the clamping force, and the tension spring on the slide bar can provide reset and buffering, ensuring the adaptive effect of the top clamping; It is worth mentioning that there is an avoidance opening at the junction of the fixed corner seat and the sliding seat. When the sliding seat moves to the pressing position, the opening is directly opposite the corner joint of the profile, providing an unobstructed operating path for the welding torch and facilitating welding operations. Attached Figure Description

[0011] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0012] Figure 1 This is an overall schematic diagram of the welding fixture for processing aluminum alloy doors and windows according to the present invention; Figure 2 This is a schematic diagram showing the connection between the frame and the movable plate of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 This is a frontal view of the frame and movable plate of the present invention; Figure 5 This is a schematic diagram of the fixture used to fix the profile according to the present invention; Figure 6 This is a three-dimensional schematic diagram of the fixture of the present invention; Figure 7 This is a cross-sectional schematic diagram of the fixture of the present invention; Figure 8 This is a bottom view of the fixture of the present invention; Figure 9 This is a schematic diagram of the jig and profile of the present invention being separated.

[0013] Figure label: 1. Frame; 101. Fixed plate; 102. Movable plate; 2. Lateral drive assembly; 201. First track; 202. Track slider; 203. Mounting bracket; 204. Motor; 205. Gear; 206. Gear plate; 3. Fixed platform; 4. Activity table; 5. Longitudinal moving assembly; 501. Second track; 502. First cylinder; 503. First connecting plate; 6. Fixture; 601. Fixed angle seat; 6011. Guide plate; 6012. Constraint groove; 6013. Slide groove; 6014. Second connecting plate; 602. Sliding seat; 6021. Slide rod; 6022. Pressure plate; 6023. Screw; 6024. Pressure plate; 6025. Drive shaft; 6026. Fixed plate; 6027. Tension spring; 6028. Follower slider; 7. Second cylinder.

[0014] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0015] The welding fixture for processing aluminum alloy doors and windows provided by the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should also be noted that, in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can also use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0016] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0017] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0018] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0019] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0020] like Figures 1 to 5As shown, an embodiment of the present invention provides a welding fixture for processing aluminum alloy doors and windows, including a frame 1. The top of the frame 1 is provided with a fixed plate 101 and a movable plate 102 that can slide laterally. The frame 1 is provided with a transverse drive assembly 2 for driving the movable plate 102 to move. The transverse drive assembly 2 includes a first track 201 fixed to the top of the frame 1, a track slider 202 slidably connected to the top of the first track 201, and the movable plate 102 fixed to the top of the track slider 202. A mounting bracket 203 is fixedly connected to the top of the movable plate 102, and a motor 204 is mounted on the mounting bracket 203. A gear 205 is fixedly connected to the output end of the motor 204. A toothed plate 206 is fixedly connected to the outer side of the frame 1, and the gear 205 meshes with the toothed plate 206. The tops of the fixed plate 101 and the movable plate 102 are each provided with a fixed platform 3 and a longitudinally sliding movable platform 4. Both the fixed plate 101 and the movable plate 102 are provided with a drive mechanism. The movable table 4 is moved by a longitudinal moving component 5, which includes a second track 501 fixed to the top of the fixed plate 101 and the movable plate 102. The movable table 4 is slidably connected on the second track 501. A first connecting plate 503 is fixedly connected to the bottom of the movable table 4. A first cylinder 502 is installed at the bottom of both the fixed plate 101 and the movable plate 102, and the telescopic end of the first cylinder 502 is fixedly connected to one side of the first connecting plate 503. Fixtures 6 are provided on the top of both the fixed table 3 and the movable table 4. The position of the movable plate 102 is adjusted by the transverse driving component 2 to change the total width between the left and right fixtures 6 to match the overall width of the door and window frame. The positions of the front and rear pairs of movable tables 4 are finely adjusted by the longitudinal moving components 5 on both sides so that the positioning points of the four fixtures 6 accurately correspond to the four outer corners of the door and window frame, ensuring that the tooling can quickly and accurately adapt to rectangular workpieces of various specifications, thus improving the versatility of the equipment. In this embodiment, as Figure 6 and Figure 7As shown, the fixture 6 includes a fixed corner seat 601 fixed to the top of the fixed platform 3 and the movable platform 4. A sliding seat 602 is slidably disposed on the top of the fixed corner seat 601. A sliding rod 6021 is symmetrically slidably connected inside the sliding seat 602. A pressure plate 6022 is fixedly connected to the top of the sliding rod 6021. A screw 6023 is threadedly connected inside the pressure plate 6022, and a pressure plate 6024 is rotatably connected to the bottom of the screw 6023 for adjusting the downward pressure of the pressure plate 6024 on the profile. The threads of the screw 6023 and the pressure plate 6022 are... The connection forms a height fine-tuning mechanism. Rotating the screw 6023 can change the extension height of the pressure plate 6024 relative to the pressure plate 6022, allowing the operator to set and adjust the vertical clamping force according to the specific thickness or surface flatness of the profile. For example, for thinner profiles or precision workpieces that need to be protected from deformation, the pressure plate 6024 can be adjusted to reduce the downward pressure. For cases requiring particularly firm fixation, the pressure plate 6024 can be adjusted to increase the clamping force. This adjustability enhances the tooling's adaptability to different process requirements. A fixed plate 6026 is sleeved on the outside of the slide rod 6021. A tension spring 6027 is fixedly connected to the outside of the slide rod 6021 and between the fixed plate 6026 and the top plate of the sliding seat 602. In the non-working state (i.e. when the sliding seat 602 is retracted), the tension of the tension spring 6027 can pull the slide rod 6021 and the pressure plate 6022 upward, keeping them in an elevated state, thereby providing sufficient operating space for inserting and removing the profile and preventing interference. During the working process, when the pressure plate 6022 presses down to contact the profile, the tension spring 6027 is compressed, and its elasticity provides a buffer for the pressing action, avoiding damage to the surface of the profile that may be caused by rigid impact.

[0021] In this embodiment, as Figure 7 As shown, guide plates 6011 are symmetrically fixedly connected to the top of the sliding seat 602. When the sliding seat 602 slides horizontally, under the constraint of the guide plates 6011, the drive rod 6021 and the pressure plate 6022 slide vertically downward. An inclined constraint groove 6012 is provided inside the guide plate 6011. A drive shaft 6025 is fixedly connected inside the slide rod 6021. One end of the drive shaft 6025 extends into the constraint groove 6012 and slides inside it. When an external force drives the sliding seat 602 to move horizontally, the slide rod 6021 fixed on it moves simultaneously. As the end of the drive shaft 6025 is confined within the inclined constraint groove 6012, the horizontal displacement of the sliding seat 602 forces the drive shaft 6025 to slide along the inclined groove wall. During the horizontal movement of the sliding seat 602, the sliding rod 6021 is forced to move downward, thereby causing the pressure plate 6022, screw 6023 and pressure plate 6024 on its top to move downward. When the sliding seat 602 slides to the working position (i.e., the pressing position), the pressure plate 6024 presses on the top of the profile to ensure that the horizontal height of the profile joint is consistent and to prevent welding misalignment.

[0022] In this embodiment, as Figure 8 As shown, a second cylinder 7 is fixedly connected to the bottom of the fixed angle seat 601, and a second connecting plate 6014 is fixedly connected to the bottom of the sliding seat 602. The telescopic end of the second cylinder 7 is fixedly connected to one side of the second connecting plate 6014. The second cylinder 7 can provide the power required to drive the sliding seat 602 to perform horizontal reciprocating motion. Moreover, by using a single cylinder instead of the two independent cylinders on the side and top in the traditional solution, not only can the pneumatic pipeline system and control system be simplified, reducing costs and failure rates, but also the space occupied for installation can be reduced. The fixed angle seat 601 has symmetrically provided sliding grooves 6013 inside. The bottom of the sliding seat 602 is symmetrically fixedly connected to a follower slider 6028, and the follower slider 6028 slides inside the sliding groove 6013. The sliding groove 6013 and the follower slider 6028 constitute a sliding guide mechanism, which provides precise linear guidance for the horizontal movement of the sliding seat 602, prevents it from deflecting or getting stuck during the movement, and ensures the accuracy of the movement trajectory.

[0023] In this embodiment, as Figure 6 As shown, protective pads are provided on the contact surfaces of the fixed angle seat 601, sliding seat 602 and pressure plate 6022 adjacent to the profile. The protective pads are made of elastic and wear-resistant materials such as rubber and polyurethane. Their direct function is to prevent the metal tooling parts from directly contacting the surface of the aluminum alloy profile during the clamping process, thereby effectively preventing the coating on the profile surface from being scratched. In addition, the fixed angle seat 601 and sliding seat 602 have grooves for installing the protective pads, which can facilitate the daily replacement of the protective pads. Both the fixed corner seat 601 and the sliding seat 602 are provided with clearance openings. When the sliding seat 602 slides to the clamping position, the clearance opening is directly opposite the corner joint of the profile. When the sliding seat 602 slides to the working position (i.e. the clamping position), this opening is exactly aligned with the 45° corner joint area of ​​the profile and fully exposes the area, providing an unobstructed path for the welding operation, so that the welding wire and welding gun can act directly on the weld at the optimal angle.

[0024] Working principle of the invention: According to the specifications of the doors and windows to be processed, the operator first adjusts the position of the four jigs 6, starts the motor 204 of the transverse drive assembly 2, the motor 204 drives the gear 205 to roll along the toothed plate 206, thereby driving the movable plate 102 to move laterally along the first track 201. This action adjusts the distance between the fixed plate 101 and the movable plate 102, that is, adjusts the total transverse width between the two pairs of jigs 6 installed on it, so as to match the width of the door and window frame. The first cylinder 502 at the bottom of the fixed plate 101 and the movable plate 102 is started respectively. The telescopic end of the first cylinder 502 pushes the first connecting plate 503, thereby driving the movable table 4 to move longitudinally along the second track 501. By adjusting the position of the front and rear pairs of movable tables 4 respectively, the positioning point of the four jigs 6 in the longitudinal direction matches the length of the door and window frame. Four cut aluminum alloy profiles (with 45° beveled ends) are placed at four fixtures 6. The operator manually presses one end of each profile against the inner reference surface of the corresponding fixed angle bracket 601. At this time, if... Figure 9 As shown, the sliding seat 602 is in the retracted state, and the pressure plate 6022 is in the raised position under the action of the tension spring 6027, so that the profile can be smoothly inserted and assembled into a rectangular frame in the central area of ​​the tooling. The second cylinder 7 on the four fixtures 6 is activated to pull the second connecting plate 6014, which drives the sliding seat 602 to slide horizontally inward (towards the center of the profile and frame) along the slide groove 6013 of the fixed corner seat 601 via the follower slider 6028. During the movement, the inner side of the sliding seat 602 pushes the profile at its station, so that the 45° end face of the profile is tightly fitted with the end face of the adjacent profile. At the same time, the outer side wall of the profile is always pressed tightly against the reference surface of the fixed corner seat 601. The four fixtures 6 complete this action synchronously, thereby tightening and precisely positioning the entire rectangular frame from the outside towards the center. When the sliding seat 602 moves horizontally, the drive shaft 6025 fixed on the slide rod 6021 moves horizontally with it. Since the end of the drive shaft 6025 is located in the inclined constraint groove 6012 of the guide plate 6011, the inclined surface of the constraint groove 6012 forces the drive shaft 6025 to slide in the groove, thereby driving the slide rod 6021 to move vertically downward inside the sliding seat 602. The slide rod 6021 drives the pressure plate 6022, the screw 6023 and the pressure plate 6024 to move downward. Finally, the pressure plate 6024 presses against the upper surface of the profile. The pressing force of the pressure plate 6024 can be finely adjusted in advance by rotating the screw 6023. When the second cylinder 7 reaches its stroke position, the sliding seat 602 reaches the clamping position. At this time, the profile is fully positioned and laterally constrained in the horizontal plane and stably clamped in the vertical direction. The splice seam at the corner of the profile is fully exposed in the clearance opening between the fixed corner seat 601 and the sliding seat 602. At this time, the splice seam at the corner of the profile that has been accurately positioned and clamped can be welded. After welding is completed, the second cylinder 7 is controlled to drive the sliding seat 602 to move outward horizontally, releasing the lateral constraint on the profile. At the same time, under the restoring force of the tension spring 6027, the slide rod 6021 drives the pressure plate 6022 assembly to automatically and quickly lift up, releasing the vertical clamping. The operator can then remove the welded overall door and window frame from above the fixture.

[0025] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0026] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A welding fixture for processing aluminum alloy doors and windows, comprising a frame (1), characterized in that, The frame (1) is provided with a fixed plate (101) and a movable plate (102) that can slide laterally on the top. The frame (1) is provided with a transverse drive assembly (2) that drives the movable plate (102) to move. The fixed plate (101) and the movable plate (102) are both provided with a fixed platform (3) and a movable platform (4) that can slide longitudinally on the top. The fixed plate (101) and the movable plate (102) are both provided with a longitudinal movement assembly (5) that drives the movable platform (4) to move. The fixed platform (3) and the movable platform (4) are both provided with a fixture (6). The fixture (6) includes a fixed corner seat (601) fixed on the top of the fixed platform (3) and the movable platform (4). A sliding seat (602) is slidably provided on the top of the fixed corner seat (601). A sliding rod (6021) is symmetrically slidably connected inside the sliding seat (602). A pressure plate (6022) is fixedly connected to the top of the sliding rod (6021). A guide plate (6011) is symmetrically fixedly connected to the top of the sliding seat (602). When the sliding seat (602) slides horizontally, under the constraint of the guide plate (6011), the sliding rod (6021) and the pressure plate (6022) are driven to slide vertically downward.

2. The welding fixture for processing aluminum alloy doors and windows according to claim 1, characterized in that, The pressure plate (6022) is internally threaded with a screw (6023), and the bottom of the screw (6023) is rotatably connected to a pressure plate (6024) for adjusting the downward pressure of the pressure plate (6024) on the profile.

3. The welding fixture for processing aluminum alloy doors and windows according to claim 1, characterized in that, The guide plate (6011) has an inclined constraint groove (6012) inside, and the slide rod (6021) has a drive shaft (6025) fixedly connected inside. One end of the drive shaft (6025) extends into the constraint groove (6012) and slides inside it.

4. The welding fixture for processing aluminum alloy doors and windows according to claim 1, characterized in that, The bottom of the fixed angle seat (601) is fixedly connected to a second cylinder (7), and the bottom of the sliding seat (602) is fixedly connected to a second connecting plate (6014), and the telescopic end of the second cylinder (7) is fixedly connected to one side of the second connecting plate (6014).

5. The welding fixture for processing aluminum alloy doors and windows according to claim 1, characterized in that, A fixed plate (6026) is sleeved on the outside of the slide rod (6021), and a tension spring (6027) is fixedly connected to the outside of the slide rod (6021) and between the fixed plate (6026) and the top plate of the sliding seat (602).

6. The welding fixture for processing aluminum alloy doors and windows according to claim 1, characterized in that, The fixed angle seat (601) has symmetrically opened sliding grooves (6013) inside, and the bottom of the sliding seat (602) is symmetrically fixedly connected with a follower slider (6028), and the follower slider (6028) slides inside the sliding groove (6013).

7. The welding fixture for processing aluminum alloy doors and windows according to claim 2, characterized in that, Protective pads are provided on the contact surfaces of the fixed angle seat (601), sliding seat (602) and pressure plate (6022) adjacent to the profile.

8. The welding fixture for processing aluminum alloy doors and windows according to claim 1, characterized in that, Both the fixed corner seat (601) and the sliding seat (602) are provided with clearance openings. When the sliding seat (602) slides to the pressing position, the clearance opening is directly opposite the corner joint of the profile.

9. The welding fixture for processing aluminum alloy doors and windows according to claim 1, characterized in that, The lateral drive assembly (2) includes a first track (201) fixed to the top of the frame (1), a track slider (202) slidably connected to the top of the first track (201), and a movable plate (102) fixed to the top of the track slider (202). A mounting bracket (203) is fixedly connected to the top of the movable plate (102), and a motor (204) is mounted on the mounting bracket (203). A gear (205) is fixedly connected to the output end of the motor (204), and a toothed plate (206) is fixedly connected to the outside of the frame (1), and the gear (205) meshes with the toothed plate (206).

10. The welding fixture for processing aluminum alloy doors and windows according to claim 1, characterized in that, The longitudinal moving component (5) includes a second track (501) fixed on the top of the fixed plate (101) and the movable plate (102). The movable platform (4) is slidably connected on the second track (501). A first connecting plate (503) is fixedly connected to the bottom of the movable platform (4). A first cylinder (502) is installed at the bottom of both the fixed plate (101) and the movable plate (102), and the telescopic end of the first cylinder (502) is fixedly connected to one side of the first connecting plate (503).

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