Online welding device for aluminum products

Abstract

The invention discloses an online welding device for aluminum products. Comprising a workbench, a welding assembly is arranged above the workbench, two aluminum pieces are symmetrically placed on the top, push plates and driving assemblies are arranged at the ends of the aluminum pieces, a rear positioning plate is arranged on one side of the long edge, and an upper pressing block and a combined driving assembly are arranged on the top. The combined driving assembly drives a series of components such as gears, racks and pull rods to be in linkage through movement of the push plate, so that the upper pressing block is vertically pressed and fixed, and aluminum pieces with different thicknesses can be adapted by means of the adjusting assembly. An air cylinder drives the side pressing block to complete transverse fixing. And a transverse moving shaft and a vertical moving shaft of the welding assembly can accurately control the motion trail of a welding head. The device can accurately position the aluminum piece in a multi-dimensional mode, is efficient in clamping and high in adaptability, effectively solves the problems that a traditional welding device is inaccurate in positioning and difficult to adapt to aluminum pieces with different thicknesses, the linkage performance of parts is poor and the like, improves the aluminum product welding quality, efficiency and equipment universality, and is suitable for the field of aluminum product production and machining.

Description

Technical Field

[0001] The invention relates to the technical field of welding, and in particular to an online welding device for aluminum products. Background Art

[0002] In the welding process of aluminum products, the positioning accuracy of traditional welding devices is poor. Generally, the position of aluminum parts is determined only by simple structures, such as single-sided baffles or double-sided positioning strips. This method can only achieve preliminary positioning of aluminum parts in a single or a few dimensions. For example, lateral positioning may only rely on the outer baffle to limit the left and right movement of aluminum parts, and longitudinal positioning relies on the rear block to roughly determine the position, while there is a lack of effective and stable control means for the vertical height of aluminum parts. During the welding process, aluminum parts are easily disturbed by factors such as the uneven distribution of heat generated during welding and slight vibrations of welding equipment during operation. Due to unstable positioning, displacement is very likely to occur, resulting in deviations in the weld and difficulty in meeting welding strength standards, which ultimately leads to unstable product quality and high scrap rates, increasing production costs and waste of resources.

[0003] Traditional welding devices are unable to cope with aluminum parts of different thicknesses. Due to the lack of intelligent or convenient adaptive adjustment functions, it is often necessary to manually replace positioning fixtures or perform complex mechanical adjustments. For example, for thicker aluminum parts, higher support blocks and longer clamping rods need to be replaced, while for thin aluminum parts, suitable fine fixtures need to be reinstalled. This process is not only time-consuming and labor-intensive, seriously affecting production efficiency, but also requires operators to have rich experience and skills for each replacement or adjustment to ensure accurate positioning. Frequent equipment shutdowns and adjustments interrupt the continuity of production, are not conducive to the efficient operation of modern large-scale production lines, and limit the expansion of corporate production capacity and improvement of efficiency.

[0004] There is a lack of effective linkage and coordination mechanism between the various components of traditional welding devices. Usually, the positioning, clamping and welding of aluminum parts are completed through multiple independent operation steps and control systems. For example, the aluminum parts are first manually pushed to the approximate position, and then different clamping devices are operated to fix the aluminum parts, and finally the welding equipment is started to start welding. This decentralized operation mode not only increases the complexity and tediousness of the operation, but also easily leads to error accumulation due to poor connection between the steps. For example, inaccurate positioning may lead to uneven clamping force, which in turn affects heat conduction and metal fusion during welding, and ultimately reduces welding quality. At the same time, the independent operation method makes it difficult to achieve the optimization and integration of automated production processes, which hinders the development of aluminum product welding production towards intelligence and efficiency. Summary of the invention

[0005] The aluminum product online welding device of the present invention mainly includes a workbench, which serves as the basic supporting structure of the entire device, carries other components and provides a stable working platform for welding operations. A welding assembly is arranged above the workbench to realize the welding function of aluminum parts. Two aluminum parts are placed symmetrically on the top of the workbench, and these two aluminum parts are the main objects of the welding operation.

[0006] Furthermore, a push plate is provided at each end of the aluminum part, and a drive assembly is provided on one side of the push plate. The drive assembly includes the same bidirectional screw with a transverse thread inserted in the push plate and a servo motor coaxially arranged at one end of the bidirectional screw, and the same guide slide bar is inserted transversely and slidably at the end of the push plate. The bidirectional screw is driven to rotate by the servo motor, and the push plate is moved along the direction defined by the guide slide bar by the principle of thread transmission, so that the aluminum part is pushed in the same direction, and the aluminum part is accurately positioned and clamped in the transverse direction, ensuring that the two ends of the aluminum part are accurately abutted, providing a stable transverse position foundation for subsequent welding.

[0007] Furthermore, a rear positioning plate is vertically arranged on one side of the long side of the aluminum part, and the rear positioning plate is fixed to the top of the workbench. When the aluminum part is placed on the workbench, its rear side abuts against the rear positioning plate, thereby determining the longitudinal position of the aluminum part and preventing the aluminum part from being displaced in the longitudinal direction.

[0008] Furthermore, an upper pressing block for pressing the aluminum part is provided at the top of the aluminum part, and a joint driving assembly is provided at the top of the upper pressing block. The joint driving assembly includes a first rack which is transversely arranged on the inner side wall of the push plate, a first gear is meshed at the top of the first rack, a transmission rod is transversely inserted at the center of the first gear, a support seat is rotatably sleeved on the outer circumference of the transmission rod, the support seat is fixed to the top of the workbench, a second gear is coaxially sleeved at one end of the transmission rod away from the first gear, a second rack is vertically meshed at one end of the second gear, the second rack slides vertically through the top of the workbench, and a pull rod is transversely provided at the top of the second rack. A push rod is vertically provided at the center of the top of the upper pressing block, a guide seat is slidably sleeved on the upper part of the push rod, the guide seats are respectively fixed to the side walls of the rear positioning plate, and an adjustment assembly is provided at the top of the pull rod. The adjustment assembly includes an adjustment screw which is vertically rotatably inserted at the top of the pull rod, a nut is threadedly sleeved on the upper part of the adjustment screw, a connecting rod is fixed at the bottom of the nut, and the ends of the connecting rod are respectively connected to the top of the push rod. In the process of the push plate pushing the aluminum part to position horizontally, the upper pressure block can vertically press and fix the aluminum part through the linkage of the first rack, the first gear, the transmission rod, the second gear, the second rack, the pull rod and the adjustment assembly to ensure the vertical stability of the aluminum part, and the stroke of the upper pressure block can be adjusted by rotating the adjustment screw to adapt to aluminum parts of different thicknesses. The bottom of the adjustment screw is coaxially provided with an adjustment button to facilitate manual adjustment by the operator. The adjustment screw is laterally inserted with a positioning rod, which is in contact with the top of the pull rod, which can not only stabilize the adjustment screw during adjustment, but also drive the adjustment screw to rise and fall vertically when the pull rod moves.

[0009] Furthermore, two cylinders are arranged horizontally on one side of the top of the workbench, and side pressure blocks are arranged at the output ends of the cylinders, and the side pressure blocks are in contact with the side walls of the aluminum parts. After the aluminum parts are positioned and fixed horizontally, longitudinally and vertically, the cylinders are started to further press the side pressure blocks against the aluminum parts from the sides, thereby enhancing the overall stability of the aluminum parts during welding and preventing the aluminum parts from being slightly displaced due to welding stress and other factors, which may affect the welding quality.

[0010] Furthermore, the welding assembly includes a transverse moving shaft and a vertical moving shaft, a lifting seat is vertically arranged on one side of the vertical moving shaft, and a welding head for welding aluminum parts is arranged on the side wall of the lifting seat. After the aluminum parts are accurately positioned and fixed, the lifting seat and the welding head are driven down to a suitable welding height by the vertical moving shaft, and then the welding head is started, and at the same time, the transverse moving shaft drives the welding head to move horizontally, so that the welding head can perform welding operations at the joint of the aluminum parts along a predetermined welding path, complete the formation of the weld, and ensure the quality and accuracy of the welding.

[0011] Furthermore, a plurality of rollers are arranged horizontally at the bottom of the aluminum part, and the rollers are all embedded on the top of the workbench. The arrangement of the rollers reduces the friction when the aluminum part moves on the workbench, making it easier for the push plate to push the aluminum part for positioning operations, and also facilitating fine-tuning the position of the aluminum part before welding, thereby improving the operational convenience and work efficiency of the entire device.

[0012] To sum up, the online welding device for aluminum products of the present invention realizes the all-round precise positioning and fixation of aluminum parts in the horizontal, longitudinal, vertical and lateral directions through the coordinated work between various components. It can adapt to the welding requirements of aluminum parts of different thicknesses and ensure the stability of aluminum parts during the welding process, effectively improving the quality and efficiency of aluminum product welding, and has broad application prospects and high practical value.

[0013] Beneficial effects of the present invention:

[0014] 1. This device has a multi-dimensional precise positioning system. The rear positioning plate, bidirectional screw and push plate, upper pressure block joint drive assembly and cylinder side pressure block work together to achieve precise positioning and firm clamping of aluminum parts in the horizontal, longitudinal, vertical and lateral directions. When the push plate moves, the upper pressure block is linked to be fixed vertically, which reduces the operation steps and time, greatly improves the welding accuracy and clamping efficiency, and ensures the welding quality while improving production capacity.

[0015] 2. It can flexibly adapt to the welding of aluminum parts of different thicknesses. With the help of the adjustment components composed of adjustment screws, nuts, etc., the stroke of the upper pressure block can be changed by turning the adjustment knob, and the pressing and positioning of the aluminum parts can be easily adjusted without large-scale tooling fixture replacement or equipment adjustment. This feature enhances the versatility of the equipment, reduces enterprise costs, and improves the flexibility and freedom of production arrangements.

[0016] 3. Based on a stable workbench, its reasonable layout and component connection, combined with the auxiliary rollers at the bottom of the aluminum parts, create a stable environment for welding and reduce external interference. The horizontal and vertical moving axes of the welding components can accurately control the welding head trajectory, ensure uniform, continuous and beautiful welds, effectively improve the stability of welding quality, reduce product rework rate, and enhance the economic benefits and market competitiveness of enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present invention;

[0019] Figure 2 It is a front view structural schematic diagram of an embodiment of the present invention;

[0020] Figure 3 It is a schematic diagram of a top view of the structure of an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of a combined drive assembly according to an embodiment of the present invention;

[0022] Figure 5 For the embodiment of the present invention Figure 4 A schematic diagram of the enlarged local structure at A;

[0023] Figure 6 For the embodiment of the present invention Figure 4 An enlarged schematic diagram of the local structure at location B.

[0024] The markings in the figure are:

[0025] 1. Workbench; 2. Welding assembly; 3. Aluminum parts; 4. Push plate; 5. Rear positioning plate; 6. Roller; 7. Bidirectional screw; 8. Servo motor; 9. Guide slide; 10. First rack; 11. First gear; 12. Transmission rod; 13. Support seat; 14. Second gear; 15. Second rack; 16. Pull rod; 17. Adjusting screw; 18. Adjusting button; 19. Positioning rod; 20. Nut; 21. Connecting rod; 22. Push rod; 23. Upper pressure block; 24. Cylinder; 25. Side pressure block; 26. Guide seat; 201. Horizontal moving axis; 202. Vertical moving axis; 203. Lifting seat; 204. Welding head. DETAILED DESCRIPTION

[0026] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0027] It should be noted that the references to "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0028] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0029] Example 1

[0030] See also Figures 1 to 6

[0031] 1. Aluminum parts placement and preliminary positioning

[0032] First, the aluminum part 3 to be welded is placed on the roller 6 on the top of the workbench 1, and one side of the aluminum part 3 is closely abutted against the rear positioning plate 5. The setting of the roller 6 can reduce the friction force when the aluminum part 3 moves, facilitating subsequent operations, and the rear positioning plate 5 ensures the initial positioning accuracy of the aluminum part 3 in the longitudinal direction.

[0033] 2. Promotion and linkage positioning of aluminum parts

[0034] The servo motor 8 is started, and the servo motor 8 drives the coaxially connected bidirectional screw 7 to rotate. Since the bidirectional screw 7 is transversely threadedly inserted in the push plate 4, and the end of the push plate 4 is transversely slidably inserted with a guide slide bar 9, under the rotation of the bidirectional screw 7, the push plate 4 will move synchronously along the direction defined by the guide slide bar 9, thereby pushing the aluminum part 3 in the same direction. When the two ends of the aluminum part 3 abut against each other, the position of the aluminum part 3 in the transverse direction is determined.

[0035] During the movement of the push plate 4, the first rack 10 fixed to the inner wall of the push plate 4 will move synchronously. The first gear 11 meshed with the top of the first rack 10 starts to rotate under its drive, and the transmission rod 12 inserted horizontally in the center of the first gear 11 and the support seat 13 fixed to the top of the workbench 1 are also rotated on the outer circumference of the transmission rod 12. The second gear 14 coaxially sleeved at the end of the transmission rod 12 away from the first gear 11 will rotate synchronously under the drive of the transmission rod 12, and then drive the second rack 15 vertically meshed with it to start to descend synchronously. The second rack 15 slides vertically through the top of the workbench 1, and the pull rod 16 horizontally arranged on its top will also descend with the second rack 15.

[0036] An adjusting screw 17 is inserted vertically and rotatably at the top of the pull rod 16, and a nut 20 is threadedly sleeved on the upper part of the adjusting screw 17. When the pull rod 16 descends, the adjusting screw 17 cooperates with the nut 20, and the connecting rod 21 fixed at the bottom of the nut 20 will descend accordingly. The end of the connecting rod 21 is connected to the top of the top rod 22 vertically arranged at the top center of the upper pressure block 23, and the upper part of the top rod 22 is slidably sleeved with a guide seat 26 fixed to the side wall of the rear positioning plate 5. During the descent of the connecting rod 21, the upper pressure block 23 is driven to descend through the top rod 22, thereby completing the vertical fixation and positioning of the aluminum part 3 in the process of pushing the aluminum part 3.

[0037] 3. Horizontal fixation of aluminum parts

[0038] The two cylinders 24 arranged laterally on one side of the top of the workbench 1 are started, and the side pressure blocks 25 arranged at the output ends of the cylinders 24 will move toward the side walls of the aluminum part 3 under the drive of the cylinders 24 until the side pressure blocks 25 are tightly abutted against the side walls of the aluminum part 3, thereby completing the lateral fixation of the aluminum part 3.

[0039] 4. Welding operation

[0040] The welding assembly 2 is started, and the vertical moving shaft 202 in the welding assembly 2 drives the lifting seat 203 to move, thereby driving the welding head 204 set on the side wall of the lifting seat 203 to move synchronously. When the welding head 204 is lowered to a suitable height, the welding head 204 is started to start welding. At the same time, the horizontal moving shaft 201 drives the welding head 204 to move horizontally, so as to completely weld a weld.

[0041] 5. Adjust the stroke of the upper pressure block to adapt to aluminum parts of different thicknesses

[0042] For aluminum parts of different thicknesses, the adjusting knob 18 coaxially arranged at the bottom of the adjusting screw 17 is turned, and the top of the adjusting knob 18 abuts against the bottom of the pull rod 16. The threaded cooperation between the adjusting screw 17 and the nut 20 drives the connecting rod 21 and the top rod 22 to move up and down, thereby completing the adjustment of the linkage downward pressure stroke. The positioning rod 19 inserted laterally into the adjusting screw 17 abuts against the top of the pull rod 16, and the positioning rod 19 and the adjusting knob 18 cooperate to be clamped between the outer wall of the pull rod 16, which facilitates the rotation of the adjusting screw 17, and can synchronously drive the adjusting screw 17 to rise and fall vertically when the pull rod 16 moves.

[0043] The working principle of the above embodiment is as follows:

[0044] Place the aluminum part on the rollers on the top of the workbench, with one side of the aluminum part in contact with the rear positioning plate, which is fixed to the top of the workbench, so as to achieve preliminary longitudinal positioning of the aluminum part and determine its basic position in this direction.

[0045] Start the servo motor, and the servo motor drives the bidirectional screw to rotate. Since the bidirectional screw is threadedly connected to the push plate, and the push plate can only slide horizontally along a straight line due to the restriction of the guide slide bar, the rotation of the bidirectional screw will cause the push plate to move inward or outward synchronously. When the push plate moves, the first rack fixed on the inner wall of the push plate moves accordingly.

[0046] The first rack meshes with the first gear, and the linear motion of the first rack is converted into the rotation of the first gear. The transmission rod at the center of the first gear also rotates accordingly, and the second gear at the other end of the transmission rod is coaxial with the first gear, so the second gear also rotates synchronously.

[0047] The second gear is meshed with the vertical second rack. The rotation of the second gear causes the second rack to slide vertically on the top of the workbench, and the pull rod connected to the top of the second rack also moves vertically accordingly.

[0048] The adjusting screw at the top of the tie rod is inserted into the tie rod in a vertical rotation manner. The upper part of the adjusting screw is matched with the nut thread. The bottom of the nut is connected to the connecting rod, and the connecting rod is connected to the top rod of the upper pressure block. When the tie rod moves vertically, the transmission of the adjusting screw and the nut drives the connecting rod and the top rod to move, thereby causing the upper pressure block to rise and fall vertically, thereby realizing the vertical clamping and fixing of the aluminum part. While the push plate pushes the aluminum part to complete the lateral positioning, the vertical fixing of the aluminum part is automatically completed, thereby improving the clamping efficiency and positioning accuracy. The cylinder is started, and the side pressure block at the output end of the cylinder moves toward the side wall of the aluminum part and presses against it, thereby further strengthening the lateral fixing of the aluminum part and ensuring that the aluminum part will not be displaced during the welding process. The vertical moving shaft of the welding assembly drives the lifting seat to descend, so that the welding head reaches the appropriate welding height, and then the welding head is started to start welding. At the same time, the lateral moving shaft drives the welding head to move horizontally. Under the coordinated vertical and lateral movements, the welding head can complete continuous welding operations at the joint of the aluminum parts according to the set welding path to form a complete weld. For aluminum parts of different thicknesses, the stroke of the upper pressure block can be adjusted by turning the adjustment knob. The adjustment knob drives the adjustment screw to rotate. Since the nut is matched with the adjustment screw thread and is restricted by the connecting rod and cannot rotate but can only move up and down, the rotation of the adjustment screw will cause the nut to drive the connecting rod to move up and down, and then the top rod and the upper pressure block to move up and down, changing the degree of compression and position of the upper pressure block on the aluminum part to meet the welding requirements of aluminum parts of different thicknesses. The positioning rod and the adjustment knob are clamped on the outer wall of the pull rod, which can not only stabilize the adjustment screw during adjustment, but also drive the adjustment screw to move synchronously when the pull rod moves vertically, ensuring the coordinated operation of the entire linkage mechanism.

[0049] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0050] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An online welding device for aluminum products, comprising a workbench (1), a welding assembly (2) is arranged above the workbench (1), two aluminum parts (3) are symmetrically arranged at the center of the top of the workbench (1), push plates (4) are arranged at the ends of the aluminum parts (3), and a driving assembly for controlling the movement of the aluminum parts (3) is arranged on one side of the push plates (4), a rear positioning plate (5) is vertically arranged on one side of the long side of the aluminum parts (3), and the rear positioning plates (5) are fixed to the top of the workbench (1), an upper pressing block (23) for pressing the aluminum parts (3) is arranged on the top of the upper pressing block (23), and a joint driving assembly for controlling the vertical lifting of the upper pressing block (23) is arranged on the top, characterized in that: The combined drive assembly comprises a first rack (10) which is transversely arranged on the inner side wall of the push plate (4), the top of the first rack (10) is meshed with a first gear (11), the center of the first gear (11) is transversely inserted with a transmission rod (12), the outer peripheral surface of the transmission rod (12) is rotatably sleeved with a support seat (13), the support seat (13) is fixed to the top of the workbench (1), the end of the transmission rod (12) away from the first gear (11) is coaxially sleeved with a second gear (14), one end of the second gear (14) is vertically meshed with a second rack (15), the second rack (15) is vertically slidable through the top of the workbench (1), and the second rack (15) ) are horizontally provided at the top of each of the pull rods (16), and a push rod (22) is vertically provided at the center of the top of the upper pressure block (23). A guide seat (26) is slidably sleeved on the upper part of the push rod (22), and the guide seat (26) is respectively fixed to the side wall of the rear positioning plate (5). An adjustment component for controlling the movement stroke of the upper pressure block (23) is provided at the top of each of the pull rods (16), and the adjustment component includes an adjustment screw (17) which is vertically rotatably inserted at the top of the pull rod (16), and a nut (20) is threadedly sleeved on the upper part of the adjustment screw (17), and a connecting rod (21) is fixed at the bottom of the nut (20), and the ends of the connecting rod (21) are respectively connected to the top of the push rod (22).

2. The online welding device for aluminum products according to claim 1, characterized in that: The bottom of the adjusting screw rod (17) is coaxially provided with an adjusting button (18), and the top of the adjusting button (18) is in contact with the bottom of the pull rod (16).

3. The online welding device for aluminum products according to claim 1, characterized in that: A positioning rod (19) is inserted transversely into the adjusting screw rod (17), and the positioning rod (19) abuts against the top of the pull rod (16).

4. The online welding device for aluminum products according to claim 1, characterized in that: The driving assembly comprises a bidirectional screw rod (7) which is transversely threaded and inserted into a push plate (4); a servo motor (8) is coaxially arranged at one end of the bidirectional screw rod (7).

5. The online welding device for aluminum products according to claim 1, characterized in that: The end of the push plate (4) is laterally slidably inserted with a same guide slide rod (9).

6. The online welding device for aluminum products according to claim 1, characterized in that: The welding assembly (2) comprises a transverse movable shaft (201) and a vertical movable shaft (202); a lifting seat (203) is vertically arranged on one side of the vertical movable shaft (202); and a welding head (204) for welding the aluminum part (3) is arranged on a side wall of the lifting seat (203).

7. The online welding device for aluminum products according to claim 1, characterized in that: Two cylinders (24) are also transversely arranged on one side of the top of the workbench (1), and the output ends of the cylinders (24) are each provided with a side pressure block (25), and the side pressure blocks (25) are each in contact with the side wall of the aluminum part (3).

8. The online welding device for aluminum products according to claim 1, characterized in that: A plurality of rollers (6) are laterally arranged at the bottom of the aluminum part (3), and the rollers (6) are all embedded in the top of the workbench (1).

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