Welding fixing device capable of adapting to different lengths and used for copper bar machining

Abstract

The invention provides a welding fixing device capable of adapting to different lengths for copper bar processing, each first fixing assembly comprises a bearing plate, the bearing plate is provided with a plurality of fixing stations, each fixing station is internally provided with a clamping unit and a limiting unit, the clamping unit is used for laterally clamping a copper bar, and the limiting unit is used for limiting the copper bar. The limiting unit is used for limiting the end part of the copper bar; the second welding fixing mechanism comprises a plurality of second fixing assemblies which are arranged above the open area and are configured to move in the length direction of the open area, each second fixing assembly comprises an adjusting frame, each adjusting frame is provided with a plurality of pressing units, and each pressing unit is used for pressing and fixing the copper bar. The problems that due to the fact that an existing copper bar welding fixing device is difficult to position copper bars with different lengths according to needs, the copper bars are prone to being not firmly clamped, uneven in stress and deviated are solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of copper bar welding, and particularly relates to a welding fixing device capable of adapting to different lengths for copper bar processing. BACKGROUND

[0002] Copper bar welding fixing refers to a method for permanently connecting and fixing copper bars with other components or between copper bars through a welding process. In the prior art, a welding fixing device is usually used to achieve the purpose.

[0003] A copper bar welding fixing device disclosed in Patent No. CN222154475U comprises a support assembly, a fixing assembly and a first locking assembly. The support assembly comprises a plurality of vertical rods and a frame arranged at the top of the vertical rods. A plurality of horizontal rods for receiving copper bars are arranged on the frame along the length direction of the frame. The fixing assembly comprises a pressing plate movably connected to the frame. The pressing plate is used to abut and fix a plurality of copper bars at the same time. The first locking assembly is arranged on the frame. The first locking assembly is used to lock the pressing plate and the frame, and make the pressing plate abut a plurality of copper bars at the same time. However, the above-mentioned patent still has the following defects in actual application.

[0004] Firstly, the pressing plate is adjusted and locked up and down through a screw rod and a nut. Although the pressing plate can press a plurality of copper bars integrally, it cannot independently clamp or fine-tune a single copper bar. When the lengths of the copper bars are inconsistent or the copper bars are not aligned, the copper bars may be clamped insecurely or unevenly stressed.

[0005] Secondly, the limiting plate is arranged only at the end of the frame, and can only axially limit one end of the copper bar. The other end has no effective positioning during the welding process, and is easy to deviate due to thermal deformation.

[0006] In addition, the entire structure relies on manual operation to tighten the nut, and has low automation degree, which is difficult to integrate into an automatic production line, thereby limiting its application range.

[0007] Therefore, the application provides a welding fixing device capable of adapting to different lengths for copper bar processing to overcome the above-mentioned defects. SUMMARY

[0008] The application aims to solve the problems that the existing copper bar welding fixing device cannot position the copper bars of different lengths as needed, and the copper bars are easy to be clamped insecurely, unevenly stressed and deviated.

[0009] In order to achieve the above-mentioned purpose, the application provides a welding fixing device capable of adapting to different lengths for copper bar processing, which comprises a fixing table, and a first welding fixing mechanism and a second welding fixing mechanism arranged on the fixing table.

[0010] The fixing table has an open area in the shape of U.

[0011] The first welding fixing mechanism comprises a plurality of first fixing assemblies slidably connected in the length direction of the open area, each of the first fixing assemblies comprises a bearing plate, the bearing plate is provided with a plurality of fixing stations, each of the fixing stations is provided with a clamping unit and a limiting unit, the clamping unit is used for clamping the copper bar laterally, and the limiting unit is used for limiting the end of the copper bar.

[0012] The second welding fixing mechanism comprises a plurality of second fixing assemblies arranged above the open area and configured to be movable in the length direction of the open area, each of the second fixing assemblies comprises an adjusting frame, the adjusting frame is provided with a plurality of pressing units, and each of the pressing units is used for pressing and fixing the copper bar.

[0013] Optionally, two first sliding grooves extending in the length direction of the open area are symmetrically arranged in the open area, and the two ends of the bearing plate are slidably connected to the two first sliding grooves, respectively.

[0014] Optionally, the clamping unit comprises a drive box with an open side, the drive box has a first cavity, the first cavity is provided with a screw rod capable of rotating and four telescopic rods uniformly arranged on the circumferential side of the screw rod, the screw rod is threadedly connected with a movable cylinder, one side of the movable cylinder is connected with a clamping plate, when the screw rod rotates, the movable cylinder can move along the screw rod under the guidance of the four telescopic rods to drive the clamping plate to clamp the copper bar in the fixing station corresponding to the clamping plate through the opening.

[0015] Optionally, the movable cylinder is divided into a conical cylinder segment and a guide segment, the conical cylinder segment is threadedly connected with the screw rod, and one side of the guide segment is connected to the moving rod of the four telescopic rods.

[0016] Optionally, the guide segment is provided with a first spring at the position connected with the moving rod of each telescopic rod, and the other end of the first spring is connected with the clamping plate.

[0017] Optionally, one end of the screw rod close to the guide segment is provided with a second spring, and the other end of the second spring is connected with the clamping plate.

[0018] Optionally, the drive box has a second cavity, the second cavity is provided with a first driving motor, and the first driving motor is used for driving the screw rod to rotate.

[0019] Optionally, the limiting unit comprises a first limiting plate and a second limiting plate arranged at two ends of the fixing station, respectively, and the first limiting plate and the second limiting plate are configured to be axially rotatable relative to the bearing plate to limit the end of the copper bar.

[0020] Optionally, two ends of the first limiting plate and the second limiting plate are respectively provided with a first driving seat and a second driving seat, the first driving seat is provided with a second driving motor, a transmission end of the second driving motor is connected with a driving shaft, one end of the driving shaft penetrates through the first limiting plate or the second limiting plate and is connected in the second driving seat.

[0021] Optionally, each of the pressing units comprises a cylinder and a pressing plate, a transmission end of the cylinder is provided with a piston rod, and the piston rod can drive the pressing plate to move close to or away from the copper bar.

[0022] The present application has the following beneficial effects:

[0023] The welding fixing device for copper bars of the present application can be adapted to different lengths, a plurality of first fixing assemblies are slidably connected in the opening area along the length direction, each first fixing assembly comprises a bearing plate, the bearing plate is provided with a plurality of fixing stations, each fixing station is provided with a clamping unit and a limiting unit, the clamping unit is used for clamping the copper bar laterally, and the limiting unit is used for limiting the end of the copper bar, which can independently clamp the copper bar, accurately clamp the copper bars of different lengths and in different arrangements laterally, avoid the situation that some copper bars are not clamped firmly or are not stressed uniformly, and avoid the situation that the copper bar is only limited at one end and the other end deviates due to thermal deformation during welding. Meanwhile, a plurality of pressing units are arranged on the adjusting frame of each second fixing assembly in the second welding fixing mechanism, each pressing unit can press and fix the copper bar, and can also independently press the copper bar, which further ensures that each copper bar can be firmly and uniformly fixed.

[0024] Further, the first driving motor, the second driving motor and the cylinder are used to realize the position adjustment and fixing operation of the first fixing assembly and the second fixing assembly, without relying on manual operation of the nut, which improves the automation degree and is easier to integrate into the automatic production line, thereby expanding the application range.

[0025] According to the above content, the technical scheme of the present application can effectively solve the problem that the existing copper bar welding fixing device cannot position the copper bars of different lengths as needed, which leads to the problems of unstable clamping, uneven stress and deviation of the copper bars.

[0026] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0027] The present application can be better understood by reference to the following description taken in conjunction with the accompanying drawings, in which like or similar elements are referred to with the same or similar reference numerals, and in which:

[0028] Figure 1Fig. 1 shows a structural schematic diagram of a welding fixing device for copper bar processing according to an embodiment of the present application, viewed from a first perspective;

[0029] Figure 2 Fig. 2 shows a structural schematic diagram of a welding fixing device for copper bar processing according to an embodiment of the present application, viewed from a second perspective;

[0030] Figure 3 Fig. 3 shows a structural schematic diagram of a first fixing assembly according to an embodiment of the present application;

[0031] Figure 4 Fig. 4 shows a sectional view of a drive box according to an embodiment of the present application, viewed from a first perspective;

[0032] Figure 5 Fig. 5 shows a sectional view of a drive box according to an embodiment of the present application, viewed from a second perspective;

[0033] Figure 6 Fig. 6 shows a sectional view of a drive box according to an embodiment of the present application, viewed from a third perspective;

[0034] Figure 7 Fig. 7 shows a sectional view of a first drive seat according to an embodiment of the present application;

[0035] Figure 8 Fig. 8 shows a structural schematic diagram of a pressing plate according to an embodiment of the present application.

[0036] Reference signs:

[0037] 1, fixed table; 101, open area; 2, bearing plate; 3, fixed station; 4, adjusting frame; 5, first sliding groove; 6, first sliding block; 7, drive box; 701, first cavity; 702, second cavity; 8, lead screw; 9, telescopic rod; 10, movable cylinder; 1001, conical cylinder segment; 1002, guide segment; 11, clamping plate; 12, first spring; 13, second spring; 14, first drive motor; 15, first pressure sensor; 16, first protective layer; 17, first limiting plate; 18, second limiting plate; 19, first drive seat; 20, second drive seat; 21, second drive motor; 22, drive shaft; 23, second sliding groove; 24, second sliding block; 25, air cylinder; 26, pressing plate; 27, piston rod; 28, second pressure sensor; 29, second protective layer; 30, third sliding groove; 31, transparent protective plate. DETAILED DESCRIPTION

[0038] In order for those skilled in the art to more fully understand the technical solutions of the present application, in the following, exemplary embodiments of the present application will be described more fully and in greater detail with reference to the accompanying drawings. Obviously, the following described one or more embodiments of the present application are only one or more of the specific ways in which the technical solutions of the present application can be implemented, and are not exhaustive. It should be understood that the technical solutions of the present application can be implemented in other ways belonging to one general inventive concept without being limited by the exemplary described embodiments. Based on one or more embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0039] With reference to Figures 1-8 The embodiment of the present application provides a welding fixing device capable of adapting to different lengths for copper bar processing, which comprises a fixing table 1 and a first welding fixing mechanism and a second welding fixing mechanism arranged on the fixing table 1.

[0040] The fixing table 1 has an open area 101 in the shape of U;

[0041] The first welding fixing mechanism comprises a plurality of first fixing assemblies which are slidably connected in the length direction of the open area 101, each of the first fixing assemblies comprises a bearing plate 2, the bearing plate 2 has a plurality of fixing stations 3, each of the fixing stations 3 is provided with a clamping unit and a limiting unit, the clamping unit is used for clamping the copper bar laterally, and the limiting unit is used for limiting the end of the copper bar;

[0042] The second welding fixing mechanism comprises a plurality of second fixing assemblies which are arranged above the open area 101 and are configured to be movable along the length direction of the open area 101, each of the second fixing assemblies comprises an adjusting frame 4, the adjusting frame 4 is provided with a plurality of pressing units, and each of the pressing units is used for pressing and fixing the copper bar.

[0043] Specifically, each electrical element in the welding fixing device of the present application can be electrically controlled by an independent or integrated external control device, such as an upper computer, and the specific control principle is the prior art, which will not be described in detail herein.

[0044] In one embodiment, two first sliding grooves 5 which extend along the length direction of the open area 101 are symmetrically arranged in the open area 101, and the two ends of the bearing plate 2 are slidably connected to the two first sliding grooves 5 respectively.

[0045] In a specific embodiment, the two ends of the bearing plate 2 are provided with first sliding blocks 6, and one end of each of the first sliding blocks 6 is connected to the first sliding groove 5.

[0046] Specifically, the two ends of the bearing plate 2 can be connected with the two first sliding grooves 5 through the first sliding blocks 6, so that the copper bars can be pulled during welding or the copper bars of different lengths can be adapted by adjusting the position of the bearing plate 2, thereby improving the flexibility of the welding fixing device. Compared with the manual adjustment in the prior art, the automatic adjustment realized by the first sliding blocks 6 can improve the pulling or clamping efficiency of the copper bars and significantly improve the fixing accuracy of the copper bars, thereby providing a strong guarantee for the good welding processing effect of the copper bars.

[0047] In an embodiment, the clamping unit comprises a driving box 7 with an open side, the driving box 7 has a first cavity 701, the first cavity 701 has a rotating screw rod 8 and four telescopic rods 9 uniformly arranged on the side of the screw rod 8, the screw rod 8 is threadedly connected with a movable cylinder 10, one side of the movable cylinder 10 is connected with a clamping plate 11, when the screw rod 8 rotates, the movable cylinder can move along the screw rod 8 under the guidance of the four telescopic rods 9, so as to drive the clamping plate 11 to clamp the copper bar on the fixed station 3 corresponding to the clamping plate 11 through the opening.

[0048] In a specific embodiment, the movable cylinder 10 is divided into a conical cylinder segment 1001 and a guide segment 1002, the conical cylinder segment 1001 is threadedly connected with the screw rod 8, and the guide segment 1002 is connected with the moving rods of the four telescopic rods 9 on one side.

[0049] In a specific embodiment, the guide segment 1002 is provided with a first spring 12 at the position connected with the moving rod of each telescopic rod 9, and the other end of the first spring 12 is connected with the clamping plate 11.

[0050] In a specific embodiment, the end of the screw rod 8 close to the guide segment 1002 is provided with a second spring 13, and the other end of the second spring 13 is connected with the clamping plate 11.

[0051] In a specific embodiment, the driving box 7 has a second cavity 702, the second cavity 702 is provided with a first driving motor 14, and the first driving motor 14 is used to drive the screw rod 8 to rotate.

[0052] Specifically, when the screw rod 8 rotates under the driving of the first driving motor 14, the conical cylinder segment 1001 can move along the screw rod 8 under the interaction of threads, so as to drive the guide segment 1002 to move. In this process, the four telescopic rods 9 guide the guide segment 1002 through the moving rods thereof, so as to keep the dynamic stability of the guide segment 1002 during movement.

[0053] At the same time, the force of the guide segment 1002 is transmitted to the clamping plate 11 through the first spring 12, so as to drive the clamping plate 11 to move to the fixed station 3 corresponding to the clamping plate 11, thereby clamping the side of the copper bar in the fixed station 3.

[0054] In the current clamping state, the four first springs 12 are in a compressed state due to the relative displacement of the guide section 1002 and the clamping plate 11, and the second spring 13 is in a stretched state due to the axial stretching action of the clamping plate 11 and the lead screw 8. Since the second spring 13 is directly connected to the middle position of the clamping plate 11, when a counterforce is generated on the clamping plate 11 during the welding of the copper bar, the counterforce will first act on the surface of the clamping plate 11 and form a displacement trend. At this time, the four first springs 12 provide a counteracting support force through compression deformation, and the second spring 13 generates an axial tension through stretching deformation, and the two form an elastic force system balance in the plane and axial dimensions of the clamping plate 11.

[0055] Thus, the compression amount change of the first spring 12 can adjust the contact pressure of the edge region of the clamping plate 11 in real time, and the stretching recovery force of the second spring 13 can inhibit the overall deviation of the clamping plate 11, and the two realize dynamic balance of force transmission through deformation amount coupling, which not only can effectively absorb the instantaneous energy generated by the copper bar under the impact of welding, but also can maintain the constant clamping force between the clamping plate 11 and the copper bar through the continuous release of elastic potential energy, thereby ensuring the positioning accuracy of the copper bar during welding and avoiding the situation that the copper bar is not clamped firmly.

[0056] In an embodiment, a first pressure sensor 15 is arranged in the second cavity 702, and the sensing end of the first pressure sensor 15 penetrates the wall of the second cavity 702 to detect the clamping force applied to the copper bar in the fixed station 3 corresponding thereto, and to adaptively adjust the clamping force of the clamping plate 11 according to the detection result.

[0057] Specifically, when the clamping plate 11 clamps the copper bar in the fixed station corresponding thereto, the copper bar is first pushed to the other side of the fixed station, and when one side of the copper bar abuts against the drive box 7 on the other side, the clamping of the copper bar can be realized.

[0058] At the same time that one side of the copper bar abuts against the drive box 7 on the other side, the sensing end of the first pressure sensor 15 in the drive box 7 on this side can be subjected to the force of the copper bar, thereby realizing the detection of the clamping force applied to the copper bar.

[0059] After obtaining this detection result, the external control device can generate a driving instruction for the first drive motor 14 to adaptively adjust the clamping force of the clamping plate 11, thereby further improving the positioning accuracy of the copper bar during the welding process and effectively preventing the uneven force on the copper bar.

[0060] In an embodiment, the side of the clamping plate 11 facing the fixed station 3 is provided with a first protective layer 16 for protecting the contact surface of the clamping plate 11 and the copper bar.

[0061] In a specific embodiment, the first protective layer 16 is a rectangular structure made of polytetrafluoroethylene material. Specifically, the clamping plate 11 can be made of aluminum alloy material, and the protective layer is made of polytetrafluoroethylene to provide flexible cushioning, which can alleviate the rigid impact of the clamping plate 11 and the copper bar contact surface.

[0062] The polytetrafluoroethylene material has a low elastic modulus characteristic and can deform slightly under the clamping force, absorbing the stress generated by the collision of the clamping plate 11 and the copper bar surface, and avoiding indentation, scratches or local deformation of the copper bar surface due to direct rigid contact.

[0063] At the same time, the static friction coefficient of the first protective layer 16 made of polytetrafluoroethylene material is moderate, so that it not only realizes stable clamping through friction force to prevent the copper bar from slipping, but also reduces the risk of copper bar surface oxidation or material softening caused by frictional heat during clamping, ensuring processing consistency.

[0064] In an embodiment, the limiting unit includes a first limiting plate 17 and a second limiting plate 18 respectively arranged at both ends of the fixed station 3, and the first limiting plate 17 and the second limiting plate 18 are configured to be axially rotatable relative to the bearing plate 2 to limit the end of the copper bar.

[0065] In a specific embodiment, the first limiting plate 17 and the second limiting plate 18 are respectively provided with a first driving seat 19 and a second driving seat 20 at both ends, a second driving motor 21 is arranged in the first driving seat 19, a driving shaft 22 is connected to the transmission end of the second driving motor 21, and one end of the driving shaft 22 penetrates through the first limiting plate 17 or the second limiting plate 18 and is connected in the second driving seat 20.

[0066] Specifically, the first limiting plate 17 and the second limiting plate 18 can be axially rotated relative to the bearing plate 2 under the drive of the second driving motor 21 and the driving shaft 22. In this design, when the end of the copper bar needs to be limited, the first limiting plate 17 or the second limiting plate 18 corresponding to the end of the copper bar can be driven to move to the angle of abutting against the copper bar according to the placement position of the end of the copper bar, so that the limiting can be realized.

[0067] In addition, the arrangement of the first limiting plate 17 and the second limiting plate 18 can also expand the area of the fixed station 3 as needed when adapting to copper bars of different lengths, so that the fixed station 3 can better meet the bearing requirements of the copper bar placed thereon during the welding process, to ensure the stability of the copper bar during welding.

[0068] In one embodiment, two second sliding grooves 23 are symmetrically arranged on the back of the fixing table 1 away from the opening area 101, and extend along the length direction of the fixing table 1, and the two ends of the adjusting frame 4 are respectively slidably connected to the two second sliding grooves 23, so that the adjusting frame 4 can move along the length direction of the opening area 101.

[0069] In one specific embodiment, the two ends of the adjusting frame 4 are respectively provided with second sliding blocks 24, and one end of each second sliding block 24 is connected to the second sliding groove 23.

[0070] Specifically, the adjusting frame 4 can move along the second sliding groove 23 through the second sliding block 24, so that the positions of the plurality of pressing units can be adjusted according to the fixing needs of the copper bar, so as to realize the pressing and fixing of different copper bars.

[0071] The specific structure and sliding principle of the first sliding block 6 and the second sliding block 24 on the first sliding groove 5 and the second sliding groove 23 are both existing technologies, such as a linear module, and will not be described in detail herein.

[0072] In one embodiment, each pressing unit includes a pneumatic cylinder 25 and a pressing plate 26, and the transmission end of the pneumatic cylinder 25 is provided with a piston rod 27, which can drive the pressing plate 26 to approach or move away from the copper bar.

[0073] In one embodiment, the side of the pressing plate 26 facing the copper bar is provided with a plurality of second pressure sensors 28 along the circumference direction, and the plurality of second pressure sensors 28 are used to detect the pressure applied to the copper bar and to adaptively adjust the piston rod 27 according to the detection result.

[0074] Specifically, during the welding and processing of the copper bar, each pressing unit uses the pneumatic cylinder 25 as a power source, drives the pressing plate 26 to approach the copper bar through the piston rod 27, and realizes the action of pressing and fixing; after the welding is completed, the piston rod 27 drives the pressing plate 26 to move away from the copper bar, and the fixing is released.

[0075] Meanwhile, the second pressure sensor 28 can sense the pressure of the pressing plate 26 acting on the copper bar and feed back the detected pressure data to the external control device. The external control device analyzes the received pressure data and issues an instruction to the air cylinder 25 to automatically adjust the movement of the piston rod 27 in the air cylinder 25, change the pressure of the pressing plate 26 on the copper bar, and keep the pressure in a suitable range, so as to realize adaptive adjustment. By adaptively adjusting the pressure of the pressing plate 26 on the copper bar, it can ensure that the copper bar is always in a stable and suitable fixed state during welding, avoid problems such as welding misalignment and virtual welding caused by insufficient pressure of the copper bar, and prevent the copper bar from deforming due to excessive pressure of the pressing plate 26, thereby effectively improving the quality and precision of copper bar welding processing. The manual frequent intervention to adjust the pressure is abandoned, the errors and time waste caused by manual operation are reduced, the copper bar can be quickly and accurately fixed in a suitable position for welding, and the production efficiency of copper bar welding processing is improved.

[0076] Moreover, it can adapt to copper bar welding processing of different specifications and sizes, and only needs to adjust the preset pressure range value according to the actual situation to realize effective fixing and welding of various copper bars, thereby enhancing the versatility and flexibility of the welding fixing device in different production scenes.

[0077] The specific structure and working principle of the first pressure sensor 15 and the second pressure sensor 28 are both prior art, and will not be described in detail here.

[0078] In one embodiment, the side of the pressing plate 26 facing the copper bar is provided with a second protective layer 29 for protecting the contact surface of the pressing plate 26 and the steel bar. Specifically, the second protective layer 29 is made of the same material as the first protective layer 16 and is used to effectively protect the copper bar.

[0079] In one embodiment, two third sliding grooves 30 are symmetrically arranged on the fixed table 1, and a transparent protective plate 31 is arranged in each third sliding groove 30. Specifically, the transparent protective plate 31 is made of transparent glass or plastic material and can protect the workers during welding processing to prevent debris from splashing during copper bar welding and causing personal injury.

[0080] In addition, one end of the third sliding groove 30 is provided in an open shape, so that the transparent protective plate 31 can be replaced in time after being damaged to ensure the normal operation of the copper bar welding processing.

[0081] When the welding fixing device of the present application is used:

[0082] Firstly, the fixed table 1 is moved to the external welding equipment;

[0083] Then, the position of the bearing plate 2 in each fixed assembly is adjusted according to the length of the copper bar to be welded. The bearing plate 2 is adjusted to a position suitable for the length of the copper bar by sliding the first sliding block 6 at both ends along the first sliding groove 5 on the fixed table 1;

[0084] Then, according to the welding needs, copper bars of different lengths are placed in the fixed workstations 3 on the adjusted bearing plate 2; the first drive motor 14 drives the screw rod 8 to rotate, driving the movable cylinder 10 to move along the screw rod 8. The movable cylinder 10 compresses the first spring 12 through the guide section 1002, while stretching the second spring 13, driving the clamping plate 11 to move to the side of the copper bar and clamp it. The first pressure sensor 15 detects the clamping force in real time and feeds back to the external control device, automatically adjusting the first drive motor 14 to maintain a constant clamping force.

[0085] Next, the position of the adjusting frame 4 of the second fixed assembly is adjusted. After the adjusting frame 4 is aligned with the copper bar by sliding the second sliding block 24 at both ends along the second sliding groove 23 on the back side of the fixed table 1, the air cylinder 25 drives the piston rod 27 to move downward, driving the pressing plate 26 to press the surface of the copper bar. The second pressure sensor 28 detects the pressure of the pressing plate 26 on the copper bar and feeds back to the external control device, automatically adjusting the output force of the air cylinder 25 to ensure stable pressure.

[0086] In addition, according to the welding needs, the first limiting plate 17 and / or the second limiting plate 18 can be driven by the second drive motor 21 to rotate to the end of the copper bar to limit the axial displacement of the copper bar.

[0087] Finally, after confirming that the copper bar is fixed firmly, the welding device is started for welding operation.

[0088] During this process, the transparent protective plate 31 is slid in front of the welding area through the third sliding groove 30 to prevent splashing debris from damaging the operator.

[0089] The welding fixing device for copper bars of different lengths provided by the present application comprises a fixed table 1, a plurality of first fixed assemblies connected to the fixed table 1 along the length direction of the open area, each first fixed assembly comprising a bearing plate 2, the bearing plate 2 having a plurality of fixed workstations 3, each fixed workstation 3 being provided with a clamping unit and a limiting unit, the clamping unit being used for lateral clamping of the copper bar, and the limiting unit being used for limiting the end of the copper bar. The clamping unit can independently clamp the copper bar, accurately clamp the copper bars of different lengths and arrangement, avoid clamping the copper bar firmly or unevenly, and avoid the situation that only one end of the copper bar is limited, causing the other end to deviate due to thermal deformation during welding. Meanwhile, a plurality of pressing units are arranged on the adjusting frame of each second fixed assembly in the second welding fixing mechanism, each pressing unit can press and fix the copper bar, and can also independently press the copper bar, further ensuring that each copper bar can be firmly and uniformly fixed.

[0090] Further, the application uses the first driving motor, the second driving motor and the cylinder to realize the position adjustment and fixing operation of the first fixing assembly and the second fixing assembly, without relying on manual operation of screwing the nut, improving the automation degree, being easier to integrate into the automatic production line, and expanding the application range.

[0091] Although one or more embodiments of the present application have been described above with a certain degree of particularity, one skilled in the art should recognize that the application can be practiced with any other forms without departing from the spirit or essential characteristics of the disclosure. Thus, the above description is to be regarded as only given for the purposes of exemplification and should not be read to limit or restrict the scope of the application as defined in the appended claims.

Claims

1. A welding and fixing device for processing copper busbars that can adapt to different lengths, characterized in that, It includes a fixed platform and a first welding fixing mechanism and a second welding fixing mechanism disposed on the fixed platform; The fixed platform has a U-shaped open area; The first welding fixing mechanism includes a number of first fixing components that are slidably connected within the open area along its length. Each first fixing component includes a bearing plate with a number of fixing stations. Each fixing station is provided with a clamping unit and a limiting unit. The clamping unit is used to clamp the copper busbar laterally, and the limiting unit is used to limit the end of the copper busbar. The second welding fixing mechanism includes several second fixing components, each disposed above the open area and configured to move along the length of the open area. Each second fixing component includes an adjustment frame with several clamping units, each clamping unit being used to clamp and fix the copper busbar.

2. The welding and fixing device for copper busbar processing that can adapt to different lengths according to claim 1, characterized in that, Two first sliding grooves, each extending along its length, are symmetrically arranged within the open area, and the two ends of the bearing plate are slidably connected to the two first sliding grooves respectively.

3. The welding and fixing device for copper busbar processing that can adapt to different lengths according to claim 2, characterized in that, The clamping unit includes a drive box with an opening on one side. The drive box has a first cavity, in which there is a rotatable lead screw and four telescopic rods evenly distributed around the lead screw. A movable cylinder is threaded onto the lead screw, and a clamping plate is connected to one side of the movable cylinder. When the lead screw rotates, the movable cylinder can move along the lead screw under the guidance of the four telescopic rods, so as to drive the clamping plate to clamp the copper busbar on the corresponding fixed position through the opening.

4. The welding and fixing device for copper busbar processing adaptable to different lengths according to claim 3, characterized in that, The movable cylinder is divided into a conical section and a guide section. The conical section is threadedly connected to the lead screw, and one side of the guide section is connected to the moving rod of the four telescopic rods.

5. The welding and fixing device for copper busbar processing adaptable to different lengths according to claim 4, characterized in that, A first spring is provided at the connection point of each telescopic rod on the guide section, and the other end of the first spring is connected to the clamping plate.

6. The welding and fixing device for copper busbar processing adaptable to different lengths according to claim 5, characterized in that, A second spring is provided at one end of the lead screw near the guide section, and the other end of the second spring is connected to the clamping plate.

7. The welding and fixing device for copper busbar processing adaptable to different lengths according to claim 6, characterized in that, The drive box has a second cavity, in which a first drive motor is installed. The first drive motor is used to drive the lead screw to rotate.

8. The welding and fixing device for copper busbar processing adaptable to different lengths according to claim 7, characterized in that, The limiting unit includes a first limiting plate and a second limiting plate respectively disposed at both ends of the fixed work station. Both the first limiting plate and the second limiting plate are configured to rotate axially relative to the bearing plate to limit the end of the copper busbar.

9. The welding and fixing device for copper busbar processing adaptable to different lengths according to claim 8, characterized in that, The first limiting plate and the second limiting plate are respectively provided with a first driving seat and a second driving seat at their two ends. The first driving seat is provided with a second driving motor. The transmission end of the second driving motor is connected to a driving shaft. One end of the driving shaft passes through the first limiting plate or the second limiting plate and is connected to the second driving seat.

10. The welding and fixing device for copper busbar processing adaptable to different lengths according to claim 9, characterized in that, Each of the clamping units includes a cylinder and a pressure plate. The cylinder has a piston rod at its drive end, which can drive the pressure plate closer to or away from the copper busbar.

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