Tailor-welding tool

Abstract

The invention relates to the technical field of welding tools, and provides a tailor-welding tool. The tailor-welding tool is used for assisting a plurality of slender workpieces to be tailor-welded into a tubular slender assembly and comprises a base, a plurality of lower dies arranged in the length direction of the base at intervals, upper dies corresponding to the lower dies one to one, supporting pieces arranged between the lower dies and the upper dies and a maintaining part for maintaining the relative positions of the upper dies and the lower dies. Limiting spaces are defined by the upper dies and the corresponding lower dies and can limit the outer contour of the long and thin assembly. The supporting piece is arranged in the long and thin assembly and can support at least part of the long and thin workpiece to abut against the upper die. And the base is provided with a holding part corresponding to each lower die. According to the tailor-welding tool, the relative positions of the thin and long workpieces can be kept, welding can be directly carried out during follow-up positioned welding, compared with the mode that the thin and long workpieces are welded in sequence in pairs, the tailor-welding tool has better appearance precision, and the welding quality of thin and long assemblies can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of welding tooling, in particular to a tailor-made welding tooling. Background Art

[0002] In production, it's sometimes necessary to weld multiple slender workpieces together to form a slender tubular component. The conventional production method for this situation is to weld all the slender workpieces in pairs, one after the other, until they form a closed tubular shape. However, when welding slender workpieces one by one in this way, the welding deformation of the previous slender workpiece becomes the assembly reference for the next slender workpiece. This recursive error accumulation is more pronounced due to the thermal expansion and contraction characteristics of the material, resulting in low external precision of the welded slender component, which is not conducive to improving welding quality. Summary of the Invention

[0003] In view of this, the present invention aims to provide a tailor-made welding tool to improve welding quality.

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0005] A welding fixture for assisting in welding a plurality of slender workpieces into a tubular slender component, comprising a base, a plurality of lower dies spaced apart along the length of the base, upper dies corresponding one to each of the lower dies, a support member disposed between the lower dies and the upper dies, and a retaining portion for maintaining the relative position of the upper and lower dies.

[0006] A limiting space is formed between each upper die and the corresponding lower die, and the limiting space can limit the outer contour of the elongated component;

[0007] The support member is provided inside the elongated component and is capable of supporting at least a portion of the elongated workpiece to abut against the upper die;

[0008] The holding portion is provided on the base corresponding to each of the lower molds.

[0009] Furthermore, the holding portion includes two mounting seats respectively provided on both sides of the elongated workpiece, and a pressing assembly provided on any of the mounting seats;

[0010] The mounting seat is arranged on the base, and the pressing assembly can be driven to move so as to press the upper die and the lower die onto another mounting seat.

[0011] Furthermore, the pressing assembly includes a screw that is threadedly connected to and passes through the mounting seat, and a pressure plate that is rotatably connected to the end of the screw;

[0012] The pressure plate can press the upper die and the lower die onto another mounting seat.

[0013] Furthermore, the retaining portion includes a limiting component, which is arranged between the two mounting seats and can limit the maximum height of the upper mold.

[0014] Furthermore, the limiting assembly includes an insertion rod passing through the two mounting seats, and a limiting block padded between the insertion rod and the upper mold.

[0015] Furthermore, the holding portion includes a mounting seat provided on the base, a limiting body hinged to the top end of the mounting seat, and a pressing assembly hinged to the free end of the limiting body;

[0016] The clamping assembly can be turned over to one side of the elongated workpiece and clamp the upper die and the lower die together with the mounting seat;

[0017] The limiting body can limit the maximum height of the upper mold.

[0018] Furthermore, the pressing assembly includes a connecting body hinged to the limiting body, a pressing plate arranged on the connecting body and sliding along a first direction, and a sliding block arranged on the connecting body and sliding along a second direction;

[0019] The base is provided with a limiting hole, the free end of the connector is provided with a limiting rod capable of penetrating the limiting hole, and the first direction is perpendicular to the second direction;

[0020] The slider is provided with a protrusion, and sliding the slider can push the pressing plate through the protrusion, so that the pressing plate presses the upper mold and the lower mold.

[0021] Furthermore, a guide rod is fixedly connected to the pressing plate, and the guide rod passes through the connecting body;

[0022] An elastic member is provided between the guide rod and the connecting body. The pressing plate is pushed and moved by the protrusion, the elastic member stores energy, and the elastic member releases energy, and the pressing plate moves toward the connecting body.

[0023] Furthermore, the retaining portion includes a synchronization rod threadedly connected to each of the sliders, each of the connecting bodies is provided with a rotating support, and the synchronization rod is rotationally connected to all the rotating supports.

[0024] Furthermore, the support member includes a rod body and a support plate spaced apart on the rod body;

[0025] The rod body passes through each limiting space, and at least one supporting plate is provided in each limiting space, and the supporting plate can support the slender workpiece.

[0026] Compared with the prior art, the present invention has the following advantages:

[0027] (1) The tailor-welding tool can enclose the shape of the elongated assembly by setting the upper die and the lower die, support the elongated workpieces firmly in the upper die and the lower die by using the support, and keep the relative positions of the elongated workpieces by using the holding part to hold the positions of the upper die and the lower die, so that the elongated workpieces can be directly welded during subsequent positioning and welding, and the shape accuracy is better than that of welding the elongated workpieces two by two, which is beneficial to improving the welding quality of the elongated assembly.

[0028] (2) The two mounting seats can provide space for accommodating the upper die, the lower die, the support and the elongated workpieces, the pressing assembly is arranged on one of the mounting seats, and the upper die, the lower die, the support and the elongated workpieces can be pressed on the other mounting seat, so that the pressing effect is stable.

[0029] (3) The screw with the rotatable pressing disc can press the upper die and the lower die on the mounting seat by the tightening screw, the operation is convenient, and the screw is not easy to loosen due to the self-locking property of the screw thread.

[0030] (4) The limiting assembly can limit the maximum height of the upper die, so that the shape of the elongated workpiece in the height direction is more accurate.

[0031] (5) The structure is simple and reliable, and has good limiting accuracy.

[0032] (6) The mounting seat is arranged on the base, and the limiting body and the pressing assembly are sequentially connected end to end, so that the elongated assembly can be wrapped on the outside by turning, the upper die and the lower die are simultaneously limited, the limiting body and the pressing assembly can be unfolded after the elongated assembly is welded, and the elongated assembly can be taken out, so that the operation is simple and the work efficiency is improved.

[0033] (7) The limiting rod is arranged on the connecting body, the limiting rod is inserted into the limiting hole, the pressing assembly presses the upper die and the lower die, the limiting rod is tightly pressed against the hole wall of the limiting hole under the reaction force of the connecting body, the limiting rod does not come off the limiting hole under the action of the friction force, and the connecting body remains connected to the base; the convex can lift the pressing plate by moving the sliding block, so that the pressing plate stably presses the upper die and the lower die.

[0034] (8) The guide rod is arranged, so that the sliding direction of the pressing plate relative to the connecting body is more accurate, and the pressing plate can be folded towards the connecting body when not being pushed by the convex under the action of the elastic element, so as to connect or disconnect the connecting body and the base.

[0035] (9) The synchronous rod is arranged, and only the rotation of the synchronous rod can synchronously control the sliding of the sliding blocks, so as to realize the pressing of the upper die and the lower die by the pressing plates, the operation is simple, and the work efficiency is improved.

[0036] (10) The support plate can better support the slender workpiece, and its own weight is also small, which is easy to operate. The rod body can connect all the support plates together so that the operator can pull each support plate at the same time to find the corresponding position of the support plate and the upper mold and lower mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings, which constitute part of the present invention, are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0038] Figure 1 This is a schematic diagram of the overall structure of the tailor-made welding fixture according to an embodiment of the present invention;

[0039] Figure 2 This is a schematic structural diagram of a support member according to an embodiment of the present invention;

[0040] Figure 3 This is a schematic diagram of the splicing form of the slender components according to an embodiment of the present invention;

[0041] Figure 4 This is a schematic diagram of the overall structure of another tailor-welding tooling according to an embodiment of the present invention;

[0042] Figure 5 This is a partial structural diagram of a compression assembly according to an embodiment of the present invention;

[0043] Figure 6 This is a structural diagram of a base according to an embodiment of the present invention;

[0044] Figure 7 This is a schematic diagram of the overall structure of the compression assembly according to an embodiment of the present invention;

[0045] Description of reference numerals:

[0046] 1. Base; 101. Limiting hole;

[0047] 2. Lower mold;

[0048] 3. Upper mold;

[0049] 4. Support member; 401. Rod body; 402. Support plate;

[0050] 5. Maintaining department;

[0051] 501, mounting seat;

[0052] 502, pressing assembly; 5021, screw; 5022, pressure plate; 5023, connector; 5024, pressure plate; 50241, elastic layer; 50242, convex plate; 5025, slider; 50251, protrusion; 5026, limit rod; 5027, guide rod; 5028, elastic member;

[0053] 503, limit assembly; 5031, insertion rod; 5032, limit block;

[0054] 504, limiter; 505, synchronization rod; 506, rotating support;

[0055] 6. Slender components; 601. Slender workpieces;

[0056] 7. Handwheel. DETAILED DESCRIPTION

[0057] In order to make the technical solution and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0058] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0059] Furthermore, it should be noted that, in the description of the present invention, any terms such as "upper," "lower," "inner," and "outer" that indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, any terms such as "first" and "second" that appear are intended solely for descriptive purposes and should not be construed as indicating or implying relative importance.

[0060] Furthermore, in the description of the present invention, unless otherwise expressly defined, the terms "mounted," "connected," "connect," and "connector" should be interpreted broadly. For example, they may refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will appreciate the specific meanings of these terms in the present invention based on the specific circumstances.

[0061] In the present invention, the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0062] The present invention is described in detail below by way of exemplary embodiments, but it should be understood that elements, structures, and features of one embodiment may also be beneficially combined in other embodiments without further description.

[0063] An embodiment of a first aspect of the present invention provides a tailor-made welding tool for assisting in tailor-made welding of a plurality of slender workpieces into a tubular slender component, thereby improving welding quality.

[0064] During production, it's sometimes necessary to weld multiple slender workpieces together to form an elongated tubular assembly. To address this situation, the conventional production method in the prior art is to weld all the slender workpieces in pairs, ultimately forming a closed tubular shape. However, when welding slender workpieces one by one using this method, the welding deformation of the previous slender workpiece becomes the assembly reference for the next slender workpiece. This recursive error accumulation is more pronounced due to the thermal expansion and contraction characteristics of the material, resulting in low external precision of the welded slender assembly, which is not conducive to improving welding quality.

[0065] In view of this, in order to overcome the shortcomings in the prior art, in the welding tool of this embodiment, Figures 1 to 3 As shown, in terms of overall design, it includes a base 1, a plurality of lower molds 2 arranged at intervals along the length direction of the base 1, an upper mold 3 corresponding to the lower mold 2 one by one, a support member 4 arranged between the lower mold 2 and the upper mold 3, and a retaining portion 5 for maintaining the relative position of the upper mold 3 and the lower mold 2.

[0066] A limiting space is defined between each upper die 3 and the corresponding lower die 2, which limits the outer contour of the elongated component 6. A support member 4 is disposed within the elongated component 6, supporting at least a portion of the elongated workpiece 601 in contact with the upper die 3. A retaining portion 5 is provided on the base 1, corresponding to each lower die 2.

[0067] Therefore, by setting the upper mold 3 and the lower mold 2, the outer shape of the slender component 6 can be enclosed, and at the same time, the support part 4 is used to firmly support the slender workpiece 601 in the upper mold 3 and the lower mold 2, and then the retaining part 5 is used to maintain the position of the upper mold 3 and the lower mold 2, so that each slender workpiece 601 can maintain a relative position to each other, and can be directly welded during subsequent positioning welding. Compared with welding the slender workpieces 601 two by two in sequence, it has better outer shape accuracy and is beneficial to improving the welding quality of the slender component 6.

[0068] Based on the above overall introduction, still combined with Figures 1 to 3 As shown, taking the main beam of the carriage of a rock drill arm as an example, the slender assembly 6 of this embodiment is composed of four slender workpieces 601. After being fixed using a tailored welding fixture, they are welded together using tack welding to form the entire slender assembly 6. Subsequently, the gaps between the slender workpieces 601 are completely welded. This embodiment has five upper molds 3, evenly spaced on the base 1, and there are also five corresponding upper molds 3 and retaining parts 5.

[0069] Wherein, the holding portion 5 includes two mounting seats 501 respectively arranged on both sides of the slender workpiece 601, and a clamping assembly 502 arranged on any one of the mounting seats 501. The mounting seats 501 are arranged on the base 1, and the clamping assembly 502 can be driven to move so as to press the upper mold 3 and the lower mold 2 onto the other mounting seat 501. The two mounting seats 501 are provided to provide space for accommodating the upper mold 3, the lower mold 2, the support member 4 and the slender workpiece 601. The clamping assembly 502 is provided on one of the mounting seats 501, which can press the upper mold 3, the lower mold 2, the support member 4 and the slender workpiece 601 as a whole onto the other mounting seat 501, and the clamping effect is stable. The two mounting seats 501 of this embodiment are welded to the base 1.

[0070] Specifically, the pressing assembly 502 includes a screw rod 5021 that is threaded and passes through the mounting base 501, and a pressure plate 5022 that is rotatably connected to the end of the screw rod 5021. The pressure plate 5022 can press the upper mold 3 and the lower mold 2 onto the other mounting base 501. By providing the screw rod 5021 with a rotatable pressure plate 5022, tightening the screw rod 5021 can cause the pressure plate 5022 to press the upper mold 3 and the lower mold 2 onto the mounting base 501, which is convenient to operate. Moreover, due to the self-locking nature of the thread, the screw rod 5021 is not easy to loosen. Exemplarily, the pressure plate 5022 is in the shape of a circular disk, and the width of the upper mold 3 and the lower mold 2 is equal. After tightening the screw rod 5021, the pressure plate 5022 simultaneously pushes the upper mold 3 and the lower mold 2 onto the mounting base 501. The screw rod 5021 is provided with a disc-shaped handle at one end outside the mounting base 501, which can facilitate the operator to rotate the screw rod 5021.

[0071] Secondly, the holding part 5 comprises a limiting assembly 503, which is arranged between the two mounting seats 501 and can limit the maximum height of the upper die 3. The limiting assembly 503 can limit the maximum height of the upper die 3, so that the shape of the elongated workpiece 601 in the height direction is more accurate.

[0072] Further, the limiting assembly 503 comprises a plug rod 5031 penetrating through the two mounting seats 501 and a limiting block 5032 arranged between the plug rod 5031 and the upper die 3. The plug rod 5031 cooperates with the limiting block 5032, which has a simple and reliable structure and good limiting accuracy. One end of the plug rod 5031 of the embodiment has a part with an increased diameter, facilitating handheld operation. The limiting block 5032 is a cuboid iron block, which is placed on the top of the upper die 3 and is in contact with the plug rod 5031, so that when the upper die 3 has a tendency to move upward, the upward movement of the upper die 3 is prevented.

[0073] In addition, for the specific structure of the support 4, the support 4 of the embodiment comprises a rod body 401 and support plates 402 arranged at intervals on the rod body 401. The rod body 401 penetrates through each limiting space, and at least one support plate 402 is arranged in each limiting space. The support plate 402 can support the elongated workpiece 601. The support plate 402 can better support the elongated workpiece 601, and its own weight is also small, facilitating operation. The rod body 401 can connect all the support plates 402 together, so that the operator can simultaneously pull each support plate 402 to align the corresponding positions of the support plate 402, the upper die 3 and the lower die 2.

[0074] In specific implementation, the pressing assembly 502 is preassembled on the mounting seat 501. First, the lower die 2 is placed between the two mounting seats 501. Then, each elongated workpiece 601 and the support 4 are loaded. Next, the upper die 3 is buckled on the top elongated workpiece 601. Then, the screw rod 5021 is tightened to press the upper die 3 and the lower die 2 by the pressing plate 5024. Then, the limiting block 5032 is placed on the top of the upper die 3. Finally, the plug rod 5031 is inserted to block the top of the limiting block 5032. Then, positioning welding is performed to weld the elongated workpieces into an elongated assembly.

[0075] The tailor-welding tool of the embodiment can enclose the shape of the elongated assembly 6 by arranging the upper die 3 and the lower die 2. The elongated workpieces 601 are supported firmly in the upper die 3 and the lower die 2 by the support 4. The positions of the upper die 3 and the lower die 2 are maintained by the holding part 5, so that the relative positions of the elongated workpieces 601 are maintained. When positioning welding is performed subsequently, the welding can be directly performed, which has better shape accuracy and is beneficial to improving the welding quality of the elongated assembly 6.

[0076] The embodiment of the second aspect of the application also provides a tailor-welding tool, which is different from the tailor-welding tool of the embodiment of the first aspect as follows:

[0077] Reference Figures 2 to 7 As shown, the retaining portion 5 includes a mounting seat 501 provided on the base 1, a limiting body 504 hinged to the top of the mounting seat 501, and a clamping assembly 502 hinged to the free end of the limiting body 504. The clamping assembly 502 can be flipped to one side of the slender workpiece 601, and clamp the upper mold 3 and the lower mold 2 together with the mounting seat 501. The limiting body 504 can limit the maximum height of the upper mold 3. The lower mold 2 of this embodiment is welded to the base 1. The mounting seat 501 is provided on the base 1, and the limiting body 504 and the clamping assembly 502 are hingedly connected end to end in sequence, and can be wrapped around the outside of the slender component 6 by flipping, so as to limit the upper mold 3 and the lower mold 2 at the same time. After the welding of the slender component 6 is completed, the limiting body 504 and the clamping assembly 502 can be flipped and unfolded, and the slender component 6 can be taken out. The operation is simple and helps to improve work efficiency.

[0078] Secondly, the clamping assembly 502 of this embodiment includes a connecting body 5023 hingedly connected to a limiting body 504, a pressure plate 5024 slidably mounted on the connecting body 5023 in a first direction, and a slider 5025 slidably mounted on the connecting body 5023 in a second direction. A limiting hole 101 is provided on the base 1, and a limiting rod 5026 is provided at the free end of the connecting body 5023, which is capable of passing through the limiting hole 101. The first direction is perpendicular to the second direction. The slider 5025 is provided with a protrusion 50251, which allows the slider 5025 to push against the pressure plate 5024 via the protrusion 50251, thereby causing the pressure plate 5024 to press against the upper mold 3 and the lower mold 2. Through the limiting rod 5026 set on the connecting body 5023, after the limiting rod 5026 is inserted into the limiting hole 101, the clamping assembly 502 presses the upper mold 3 and the lower mold 2, and the limiting rod 5026 will press against the hole wall of the limiting hole 101 under the reaction force of the connecting body 5023, so that the limiting rod 5026 does not separate from the limiting hole 101 under the action of friction, and the connecting body 5023 and the base 1 remain connected; by moving the slider 5025, the protrusion 50251 can lift the pressing plate 5024, so that the pressing plate 5024 can stably press the upper mold 3 and the lower mold 2.

[0079] For details, see Figure 4 、 Figure 5 and Figure 7The first direction of the present embodiment is the direction in which the pressing plate 5024 is away from the connecting body 5023, and the second direction is the length direction of the elongated workpiece 601. The pressing plate 5024 is provided with an elastic layer 50241 on the side facing the one side of the upper die 3. When the pressing plate 5024 is pressed against the upper die 3 and the lower die 2, the elastic layer 50241 can increase the contact area of the pressing plate 5024 with the upper die 3 and the lower die 2, so that the pressing plate 5024 is not easy to damage the upper die 3 and the lower die 2. The elastic layer 50241 can be made of rubber. The side of the pressing plate 5024 away from the upper die 3 is provided with a convex plate 50242 made of wear-resistant material. The convex plate 50242 has a plane in contact with the slider 5025, and is provided with a round corner at the edge to facilitate the convex 50251 of the slider 5025 to draw on the plane. The limiting body 504 is plate-shaped, and is provided with a protrusion in the middle, and can limit the maximum height of the upper die 3 by contacting the upper die 3 through the protrusion.

[0080] Meanwhile, for the specific form of the limiting rod 5026 and the limiting hole 101, refer to Figure 6 and Figure 7 It is shown that the limiting rod 5026 is provided with three at the bottom of the connecting body 5023, and the limiting rod 5026 is a cylindrical rod, and the limiting hole 101 is a waist-shaped hole. When the pressing assembly 502 presses the upper die 3 and the lower die, the limiting rod 5026 can abut against the arc-shaped hole wall on the side of the limiting hole 101 away from the mounting seat 501.

[0081] In addition, the pressing plate 5024 of the present embodiment is fixedly connected with a guide rod 5027, and the guide rod 5027 penetrates through the connecting body 5023. An elastic member 5028 is arranged between the guide rod 5027 and the connecting body 5023. When the pressing plate 5024 is pushed and moved by the convex 50251, the elastic member 5028 is energized, and when the elastic member 5028 is released, the pressing plate 5024 moves towards the connecting body 5023. The arrangement of the guide rod 5027 can make the sliding direction of the pressing plate 5024 relative to the connecting body 5023 more accurate. At the same time, through the action of the elastic member 5028, the pressing plate 5024 can be folded towards the connecting body 5023 when it is not pushed by the convex 50251, so as to facilitate the connection and disconnection of the connecting body 5023 and the base 1.

[0082] In detail, two guide rods 5027 are fixedly connected to each pressing plate 5024 of the present embodiment, and the elastic member 5028 is a spring and is sleeved on the guide rod 5027. The end of the guide rod 5027 away from the pressing plate 5024 is provided with a anti-dropping part with a larger diameter, and one end of the spring abuts against the outer side wall of the connecting member, and the other end abuts against the anti-dropping part.

[0083] Meanwhile, the holding part 5 of the embodiment comprises a synchronous rod 505 which is screwed with each slider 5025, each connecting body 5023 is provided with a rotating support 506, and the synchronous rod 505 is rotationally connected with all the rotating supports 506. The synchronous rod 505 is arranged, and the rotation of the synchronous rod 505 can synchronously control the sliding of each slider 5025, so as to realize the pressing of the upper die 3 and the lower die 2 by each pressing plate 5024, and the operation is simple, which is beneficial to improve the work efficiency.

[0084] Specifically, the synchronous rod 505 has five threaded segments which are screwed with the sliders 5025 respectively, and the diameter of the threaded segments is greater than the part of the synchronous rod 505 without thread. The end of the synchronous rod 505 is fixedly provided with a hand wheel 7, and the hand wheel 7 can facilitate the rotation of the synchronous rod 505 by the operator. Correspondingly, each connecting member is integrated due to the connection between the rotating support 506 and the synchronous rod 505, and when any connecting body 5023 is turned over, all the other connecting bodies 5023 can be turned over synchronously.

[0085] In use, the limiting body 504 and the pressing assembly 502 are lifted, the elongated workpieces 601 and the supporting member 4 are placed on the lower die 2, the upper die 3 is buckled on the elongated workpieces 601, the limiting body 504 and the pressing assembly 502 are turned over, the limiting rod 5026 is inserted into the limiting hole 101, the limiting body 504 abuts against the upper die 3, the synchronous rod 505 is screwed, the sliders 5025 are slid to abut against the convex plates 50242 through the protrusions 50251, the pressing plates 5024 can press the upper die 3 and the lower die 2 on the mounting seat 501, and then the positioning welding is performed to weld the elongated workpieces into an elongated assembly.

[0086] Similarly, the assembly welding tool of the embodiment can enclose the shape of the elongated assembly 6 by arranging the upper die 3 and the lower die 2, and the elongated workpieces 601 are supported firmly in the upper die 3 and the lower die 2 by the supporting member 4, and the positions of the upper die 3 and the lower die 2 are maintained by the holding part 5, so that the relative positions of the elongated workpieces 601 can be maintained, and the subsequent positioning welding can be directly performed, which has better shape precision and is beneficial to improve the welding quality of the elongated assembly 6.

[0087] The above only describes some embodiments of the present application and is not used to limit the present application. The technical features or structures in the foregoing different embodiments can be combined as needed to form other specific technical solutions. The present application can have various changes and modifications for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A welding tool for assisting in welding a plurality of slender workpieces (601) into a tubular slender component (6), characterized in that: The invention comprises a base (1), a plurality of lower molds (2) arranged at intervals along the length direction of the base (1), an upper mold (3) corresponding to the lower molds (2) one by one, a support member (4) arranged between the lower molds (2) and the upper mold (3), and a retaining portion (5) for maintaining the relative position of the upper mold (3) and the lower mold (2); A limiting space is formed between each upper mold (3) and the corresponding lower mold (2), and the limiting space is capable of limiting the outer contour of the elongated component (6); The support member (4) is arranged inside the slender component (6) and is capable of supporting at least a portion of the slender workpiece (601) to abut against the upper die (3); The retaining portion (5) is provided on the base (1) corresponding to each lower mold (2).

2. The tailor-made welding tool according to claim 1, characterized in that: The holding portion (5) comprises two mounting seats (501) respectively arranged on both sides of the elongated workpiece (601), and a pressing assembly (502) arranged on any one of the mounting seats (501); The mounting seat (501) is arranged on the base (1), and the pressing assembly (502) can be driven to move so as to press the upper mold (3) and the lower mold (2) onto another mounting seat (501).

3. The tailor-made welding tool according to claim 2, characterized in that: The pressing assembly (502) includes a screw rod (5021) threadedly connected to and passing through the mounting seat (501), and a pressure plate (5022) rotatably connected to the end of the screw rod (5021); The pressure plate (5022) is capable of pressing the upper die (3) and the lower die (2) onto another mounting seat (501).

4. The tailor-made welding tool according to claim 2, characterized in that: The retaining portion (5) comprises a position-limiting assembly (503), which is arranged between the two mounting seats (501) and is capable of limiting the maximum height of the upper mold (3).

5. The tailor-made welding tool according to claim 4, characterized in that: The limiting assembly (503) comprises an insertion rod (5031) passing through the two mounting seats (501), and a limiting block (5032) cushioned between the insertion rod (5031) and the upper mold (3).

6. The tailor-made welding fixture according to claim 1, characterized in that: The retaining portion (5) comprises a mounting seat (501) provided on the base (1), a limiting body (504) hinged to the top end of the mounting seat (501), and a pressing assembly (502) hinged to the free end of the limiting body (504); The clamping assembly (502) is capable of turning over to one side of the elongated workpiece (601) and clamping the upper die (3) and the lower die (2) together with the mounting seat (501); The limiting body (504) is capable of limiting the maximum height of the upper mold (3).

7. The tailor-made welding tool according to claim 6, characterized in that: The pressing assembly (502) comprises a connecting body (5023) hinged to the limiting body (504), a pressing plate (5024) arranged on the connecting body (5023) and sliding along a first direction, and a sliding block (5025) arranged on the connecting body (5023) and sliding along a second direction; The base (1) is provided with a limiting hole (101), the free end of the connecting body (5023) is provided with a limiting rod (5026) capable of penetrating the limiting hole (101), and the first direction is perpendicular to the second direction; The slider (5025) is provided with a protrusion (50251), and the slider (5025) can be slid to push the pressing plate (5024) through the protrusion (50251), so that the pressing plate (5024) presses the upper mold (3) and the lower mold (2).

8. The tailor-made welding tool according to claim 7, characterized in that: A guide rod (5027) is fixedly connected to the pressing plate (5024), and the guide rod (5027) passes through the connecting body (5023); An elastic member (5028) is provided between the guide rod (5027) and the connecting body (5023), and the pressing plate (5024) is pushed and moved by the protrusion (50251), the elastic member (5028) stores energy, and the elastic member (5028) releases energy, and the pressing plate (5024) moves toward the connecting body (5023).

9. The tailor-made welding tool according to claim 8, characterized in that: The retaining portion (5) includes a synchronization rod (505) threadedly connected to each of the sliders (5025); a rotation support (506) is provided on each of the connecting bodies (5023); and the synchronization rod (505) is rotationally connected to all of the rotation supports (506).

10. The tailor-made welding fixture according to any one of claims 1 to 9, characterized in that: The support member (4) comprises a rod body (401) and a support plate (402) spaced apart on the rod body (401); The rod body (401) passes through each limiting space, and at least one supporting plate (402) is provided in each limiting space, and the supporting plate (402) is capable of supporting the slender workpiece (601).

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