Reinforcing welding tool and welding equipment for automobile door frame reinforcing support

Abstract

The utility model discloses a reinforcing welding tool and welding equipment for an automobile door frame reinforcing support, and relates to the technical field of automobile part production equipment.The reinforcing welding tool comprises a first positioning assembly used for positioning and limiting a reinforcing plate; the second positioning assembly is arranged close to the end part of the first positioning assembly; the third positioning assembly comprises a telescopic positioning part, the positioning part can move to the position above the first positioning assembly, and the positioning part is matched with the second positioning assembly to position the reinforcing support to the reinforcing plate; and the pre-tightening assembly comprises a pre-tightening part capable of moving towards the positioning part, and the pre-tightening part is matched with the positioning part so as to lock the reinforcing support positioned on the reinforcing plate. According to the reinforcing welding tool for the automobile door frame reinforcing support, the reinforcing support and the reinforcing plate which are subjected to single-process welding operation can be positioned and fixed, and follow-up welding stability and accuracy are facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of automotive component production equipment, and particularly to a reinforcing welding tooling and welding equipment for an automotive door frame reinforcement bracket. Background Art

[0002] An automotive door is formed by snap-welding an inner door frame and an outer door panel. Generally, an automotive door frame reinforcement plate is directly welded to other window frame parts in the final welding process. However, with the diversification of automotive designs and strength requirements, some automotive doors need to add a reinforcement bracket between the inner panel and the outer panel, and the reinforcement bracket is welded to the automotive door frame reinforcement plate. Since this small bracket is on the side of the reinforcement plate, designing a structural positioning welding on the assembly fixture will result in a complex fixture structure, increased costs, and poor stability. Moreover, since the assembly fixture is for robotic arc welding of the corners and peripheral welds of the car body frame, it is difficult for the robot to reach the welding posture of the middle small bracket weld. Therefore, it is necessary to design a spot welding fixture in a separate process for welding on a fixed spot welder. Summary of the Utility Model

[0003] The present application aims to solve one of the above technical problems in the prior art. To this end, an embodiment of the present application provides a reinforcing welding tooling for an automotive door frame reinforcement bracket, which can position and fix the reinforcement bracket and the reinforcement plate for single-process welding operations.

[0004] An embodiment of the present application also provides a welding equipment.

[0005] According to an embodiment of the first aspect of the present application, there is provided a reinforcing welding tooling for an automotive door frame reinforcement bracket, including a first positioning component for positioning and limiting the reinforcement plate; a second positioning component disposed near an end of the first positioning component; a third positioning component including a retractable positioning portion that can move above the first positioning component, and the positioning portion cooperates with the second positioning component to position the reinforcement bracket on the reinforcement plate; a pre-tightening component including a pre-tightening portion that can move towards the positioning portion, and the pre-tightening portion cooperates with the positioning portion to pre-tighten the reinforcement bracket positioned on the reinforcement plate.

[0006] The above-mentioned reinforcement welding tooling for the automotive door frame reinforcement bracket has at least the following beneficial effects: When positioning the reinforcement bracket and the reinforcement plate for single-process welding operations, the reinforcement plate is positioned by the first positioning component. Then, the positioning part of the third positioning component extends above the positioned reinforcement plate. The extended positioning part, on the one hand, cooperates with the second positioning component to position both ends and one side of the reinforcement bracket, enabling the reinforcement bracket to be correctly lapped on the position to be reinforced on the reinforcement plate. On the other hand, the extended positioning part also functions to press the positioned reinforcement plate. After the reinforcement bracket is positioned, the pre-tightening part moves towards the positioning part, and the pre-tightening part and the positioning part cooperate to lock the reinforcement bracket positioned on the reinforcement plate, ensuring that the reinforcement bracket will not shift during the welding process and affect the welding. Through the reinforcement welding tooling of the present application, effective positioning and limitation of the reinforcement plate and the reinforcement bracket are achieved, and during welding, the single-process welding operation efficiency of the reinforcement bracket and the reinforcement plate can be significantly improved.

[0007] According to the reinforcement welding tooling for the automotive door frame reinforcement bracket described in the first aspect embodiment of the present application, the positioning part has a positioning angle, and the pre-tightening force provided by the second positioning component acts on the reinforcement bracket, so that a part of the reinforcement bracket abuts against the positioning angle.

[0008] According to the reinforcement welding tooling for the automotive door frame reinforcement bracket described in the first aspect embodiment of the present application, the positioning part includes a first positioning member and a second positioning member. The first positioning member and the second positioning member cooperate to form the positioning angle. The second positioning member is disposed opposite to the pre-tightening part. When the positioning part moves above the first positioning component, the first positioning member is disposed opposite to the second positioning component.

[0009] According to the reinforcement welding tooling for the automotive door frame reinforcement bracket described in the first aspect embodiment of the present application, the first positioning member can be adjusted along the telescopic direction, and the second positioning member can be adjusted along the telescopic direction.

[0010] According to the reinforcement welding tooling for the automotive door frame reinforcement bracket described in the first aspect embodiment of the present application, the second positioning component includes a third positioning member capable of rebounding. When the positioning part moves above the first positioning component, the third positioning member is disposed opposite to the first positioning member.

[0011] According to the reinforcement welding tooling for the automotive door frame reinforcement bracket described in the first aspect embodiment of the present application, the second positioning component includes a mounting bracket and an elastic member. The third positioning member is slidably disposed on the mounting bracket through a guiding structure, and the elastic member is disposed between the mounting bracket and the elastic member, so that the third positioning member has a tendency to move in a direction away from the mounting bracket.

[0012] The reinforcing welding tooling for the automotive door frame reinforcement bracket according to the embodiment of the first aspect of the present application, the third positioning member has a guiding portion, and the guiding portion is used to guide the end of the reinforcement bracket between the third positioning member and the first positioning member.

[0013] The reinforcing welding tooling for the automotive door frame reinforcement bracket according to the embodiment of the first aspect of the present application, there are two sets of the first positioning assemblies in total, the second positioning assembly is located between the two sets of the first positioning assemblies, there are two positioning portions in total, and the two positioning portions are respectively located on both sides of the second positioning assembly, and there are two pre-tightening portions in total.

[0014] The reinforcing welding tooling for the automotive door frame reinforcement bracket according to the embodiment of the first aspect of the present application, the first positioning assembly includes at least one positioning pin and at least one positioning post, and the positioning pin and the positioning post cooperate to position the reinforcement plate.

[0015] According to the embodiment of the second aspect of the present application, there is provided a welding device including the above-mentioned reinforcing welding tooling for the automotive door frame reinforcement bracket.

[0016] The additional aspects and advantages of the present application will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present application. Description of the Drawings

[0017] The present application will be further described below in conjunction with the drawings and embodiments;

[0018] Figure 1 is a schematic connection diagram of the automotive door frame, the reinforcement plate and the reinforcement bracket in the embodiment of the present application;

[0019] Figure 2 is a schematic diagram of the reinforcement bracket welded to the reinforcement plate in the embodiment of the present application;

[0020] Figure 3 is a schematic diagram of the reinforcing welding tooling for the automotive door frame reinforcement bracket of the present application fixed to the spot welder in the embodiment of the present application;

[0021] Figure 4 is a schematic structural diagram of the reinforcing welding tooling for the automotive door frame reinforcement bracket in the embodiment of the present application Figure 1 ;

[0022] Figure 5 is a schematic structural diagram of the reinforcing welding tooling for the automotive door frame reinforcement bracket in the embodiment of the present application Figure 2 ;

[0023] Figure 6 is Figure 5 an enlarged schematic diagram of part A in

[0024] Figure 7 is Figure 5 An enlarged schematic view of part B in

[0025] Figure 8 This is a schematic structural view of the reinforcement welding tooling for the automobile door frame strengthening bracket in the embodiment of the present application Figure 3 ;

[0026] Figure 9 is Figure 8 A cross-sectional view of along the C-C direction;

[0027] Figure 10 This is a schematic structural view of the second positioning component in the embodiment of the present application;

[0028] Figure 11 is Figure 10 A cross-sectional view of along the D-D direction;

[0029] Figure 12 This is a schematic connection view of the first mounting member and the second mounting member in the embodiment of the present application Figure 1 ;

[0030] Figure 13 This is a schematic connection view of the first mounting member and the second mounting member in the embodiment of the present application Figure 2 ;

[0031] Figure 14 is Figure 13 A cross-sectional view of along the E-E direction;

[0032] Figure 15 This is a schematic connection view of the first mounting member and the second mounting member in the embodiment of the present application Figure 3 ;

[0033] Figure 16 This is a schematic connection view of the first mounting member and the second mounting member in the embodiment of the present application Figure 4 ;

[0034] Figure 17 is Figure 16 A cross-sectional view of along the F-F direction.

[0035] Reference numerals: vehicle door frame 110, reinforcement plate 120, reinforcement bracket 130, spot welder 200, spot welding head 210, reinforcement welding tooling 300 for vehicle door frame reinforcement bracket, second mounting member 310, linear guide 311, limit block 312, first mounting member 320, positioning post 321, positioning pin 322, sliding pin 323, stop block 324, sliding groove 325, third positioning assembly 330, first driving member 331, mounting plate 332, second positioning member 333, first positioning member 334, second adjusting member 335, first adjusting member 337, second positioning assembly 340, mounting frame 341, third positioning member 342, elastic member 343, pre-tightening assembly 350, second driving member 351, transmission plate 352, pre-tightening portion 353, third adjusting member 356. Detailed implementation manners

[0036] This section will describe in detail the specific embodiments of the present application. The preferred embodiments of the present application are shown in the drawings. The role of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present application, but it cannot be understood as a limitation on the protection scope of the present application.

[0037] In the description of the present application, it should be understood that for the orientation description, such as up, down, front, back, left, right, etc., the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0038] In the description of the present application, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, exceeding, etc. are understood as not including the present number, above, below, within, etc. are understood as including the present number. If the first and second are described only for the purpose of distinguishing technical features, they cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0039] In the description of the present application, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present application in combination with the specific content of the technical solution.

[0040] Refer to Figure 1 and Figure 2, generally, the ordinary automobile door frame 110 is formed into a U-shaped structure by pressing, and the reinforcing plate 120 is fixed at the open end of the automobile door frame 110 by welding to strengthen the structural rigidity of the automobile door frame 110. To meet the diverse design and strength requirements of automobiles, a reinforcing bracket 130 needs to be welded at the end position of the reinforcing plate 120. Even if the existing welding tooling for the automobile door frame 110 and the reinforcing plate 120 can meet the positioning of the reinforcing bracket 130, it is not conducive to subsequent welding. Therefore, a separate welding process for the reinforcing plate 120 and the reinforcing bracket 130 needs to be added.

[0041] For this reason, as Figures 4 to 9 shown, an embodiment of the first aspect of the present application provides a reinforcing welding tooling 300 for an automobile door frame reinforcing bracket. The reinforcing welding tooling 300 includes a first positioning component, a second positioning component 340, a third positioning component 330, and a pre-tightening component 350.

[0042] As Figure 4 shown, the reinforcing welding tooling 300 of the present application further includes a first mounting member 320. The first positioning component is fixed to the first mounting member 320. The first positioning component is used for positioning and limiting the reinforcing plate 120. As Figure 4 shown, the first positioning component includes at least one positioning pin 322 and at least one positioning post 321. The positioning pin 322 and the positioning post 321 cooperate to position the reinforcing plate 120.

[0043] Specifically, two positioning pins 322 are arranged at intervals. The setting positions of the positioning pins 322 correspond to the positioning holes of the reinforcing plate 120 one by one. A plurality of positioning posts 321 are provided. The positioning posts 321 are arranged at intervals to define a frame that restricts the horizontal movement of the reinforcing plate 120. After the reinforcing plate 120 is placed in the frame, the positioning holes of the reinforcing plate 120 cooperate with the positioning pins 322, and the positioning posts 321 abut against the outer edge of the reinforcing plate 120. The positioning posts 321 and the positioning pins 322 realize the positioning of the reinforcing plate 120 on the first mounting member 320.

[0044] The second positioning component 340 is fixed to the first mounting member 320, and the second positioning component 340 is arranged near the end of the first positioning component. The third positioning component 330 includes a telescopic positioning part. The positioning part can move above the first positioning component. The positioning part cooperates with the second positioning component to position the reinforcing bracket 130 on the reinforcing plate 120.

[0045] Specifically, when positioning the reinforcement bracket 130 and the reinforcement plate 120 for a single-process welding operation, the reinforcement plate 120 is positioned by the first positioning component. Then, the positioning portion of the third positioning component 330 extends above the positioned reinforcement plate 120. The extended positioning portion, on the one hand, cooperates with the second positioning component 340 to position both ends and one side of the reinforcement bracket 130, enabling the reinforcement bracket 130 to be correctly lapped on the position of the reinforcement plate 120 to be strengthened. On the other hand, the extended positioning portion also functions to press the positioned reinforcement plate 120.

[0046] The pre-tightening component 350 includes a pre-tightening portion 353 that can move towards the positioning portion. After the reinforcement bracket 130 is positioned, the pre-tightening portion 353 of the pre-tightening component 350 cooperates with the positioning portion, and the unconstrained side of the reinforcement bracket 130 is pressed and limited by the pre-tightening portion 353 to press the reinforcement bracket 130 against the positioning portion. The positioning portion serves as the positioning reference for the reinforcement bracket 130 to ensure that the reinforcement bracket 130 does not shift during the welding process, which may affect the welding.

[0047] Through the reinforcement welding tooling 300 of the present application, effective positioning and limitation of the reinforcement plate 120 and the reinforcement bracket 130 are achieved. During welding, the single-process welding operation efficiency of the reinforcement bracket 130 and the reinforcement plate 120 can be significantly improved. After welding is completed, the pre-tightening portion 353 and the positioning portion can retract to avoid interference with the picking of the welded reinforcement bracket 130.

[0048] In the embodiment of the present application, the positioning portion can move above the first positioning component. When the positioning portion moves above the first positioning component and the reinforcement plate 120 is positioned on the first positioning component, the positioning portion can prevent the reinforcement plate 120 from disengaging from the positioning pin 322, thereby achieving the positioning and limitation of the reinforcement plate 120. The pre-tightening portion 353 can move towards the positioning portion. Correspondingly, the pre-tightening portion 353 can also extend above the first positioning component to cooperate with the positioning portion. Specifically, one end and one side of the reinforcement bracket 130 are positioned by the positioning portion, the other end of the reinforcement bracket 130 is restricted by the second positioning component 340, and then the other side of the reinforcement bracket 130 is pre-tightened by the pre-tightening portion 353 to achieve the effective positioning of the reinforcement bracket 130, facilitating subsequent spot welding operations and also ensuring the welding quality.

[0049] In some embodiments, the positioning portion has a positioning angle, and the pre-tightening force provided by the second positioning component 340 acts on the reinforcement bracket, causing a part of the reinforcement bracket 130 to abut against the positioning angle. The positioning angle serves as the positioning reference for the reinforcement bracket 130. When positioning the reinforcement bracket 130, after the end of the reinforcement bracket 130 abuts against the first positioning member 334, one side of the reinforcement bracket 130 is then fitted against the second positioning member 333 to achieve the preliminary positioning of the reinforcement bracket 130, and then the positioning of the other end of the reinforcement bracket 130 is completed by the second positioning component 340.

[0050] To enable the positioning part to effectively position one end and one side of the reinforcing bracket 130, as Figures 5 to 7 shown, the positioning part includes a first positioning member 334 and a second positioning member 333. The first positioning member 334 and the second positioning member 333 cooperate to form the above-mentioned positioning angle. In some embodiments, the first positioning member 334 is provided with a stop bar along the telescopic direction, the second positioning member 333 is stacked on the first positioning member 334, the stop bar constitutes one side of the positioning angle, and the side surface of the second positioning member 333 facing the pre-tightening part constitutes the other side of the positioning member. In the embodiment of the present application, the angle of the positioning angle is 90°. Of course, in some other embodiments, the positioning angle can be an acute angle or an obtuse angle.

[0051] When the positioning part moves above the first positioning component, the first positioning member 334 is disposed opposite to the second positioning component 340. The first positioning member 334 serves as the first positioning reference for positioning the end of the reinforcing bracket 130; the second positioning member 333 is disposed opposite to the pre-tightening part 353; the second positioning member 333 serves as the second positioning reference for positioning the side surface of the reinforcing bracket 130.

[0052] In some embodiments, the third positioning component 330 further includes a first driving member 331 and a mounting plate 332. The first driving member 331 is used to drive the mounting plate 332 to extend or retract. The positioning part is connected to the mounting plate 332 through a first screw transmission pair, so that the positioning part can be adjusted along the telescopic direction. The first screw transmission pair is used for adjusting the initial position of the positioning part.

[0053] Specifically, as Figure 7 shown, the first driving member 331 is used to drive the mounting plate 332 to perform a linear reciprocating motion. When the first driving member 331 is a cylinder, the first driving member 331 is fixed to the first mounting member 320. The mounting plate 332 is slidably disposed on the first mounting member 320 through a guide rail slider structure, and the mounting plate 332 can move toward the pre-tightening assembly 350. The driving end of the first driving member 331 is connected to the mounting plate 332 through a floating joint. The first driving member 331 drives the positioning part to perform an extending or retracting action, ensuring that after the reinforcing plate 120 is placed, the first driving member 331 drives the positioning part to extend to limit the reinforcing plate 120 and is also used for positioning the reinforcing bracket 130. In some other embodiments, the first driving member 331 can also be an oil cylinder, a linear motor, an electric push rod or a screw motor.

[0054] Specifically, the first positioning member 334 is connected to the mounting plate 332 through a threaded structure to facilitate fine adjustment of the initial position of the positioning part relative to the mounting plate 332. The first positioning member 334 is a plate member, and the first positioning member 334 is connected to the mounting plate 332 through bolts. The first positioning member 334 has a waisted hole for the bolt to pass through, and the setting direction of the waisted hole is parallel to the movement direction of the positioning part. The second positioning member 333 is set on the first positioning member 334. When adjusting the initial position of the positioning part, the bolt needs to be loosened, and then the positioning part needs to be slowly pushed for fine adjustment.

[0055] In order to make the adjustment of the positioning part more convenient, specifically, the first positioning member 334 can be adjusted along the telescopic direction, and the positioning part is connected to the mounting plate 332 through a first screw transmission pair structure, and the first screw transmission pair includes a first adjustment member 337, and the first adjustment member 337 is threadedly connected to the mounting plate 332, and the end of the first adjustment member 337 presses against the first positioning member 334. In the embodiment of the present application, the first adjustment member 337 is preferably a screw, such as Figure 7 As shown, when the initial position of the positioning part needs to be adjusted, the bolt is loosened, and then the screw is screwed to fine-tune the initial position of the positioning part through the screw, making the adjustment of the positioning part more convenient and accurate.

[0056] In some other embodiments, the second positioning member is disposed on the first positioning member, and the second positioning member can be adjusted along the telescopic direction.

[0057] Specifically, the second positioning member 333 is connected to the first positioning member 334 by a bolt, and the second positioning member 333 also has a waisted hole for the bolt to pass through, and the setting direction of the waisted hole is parallel to the movement direction of the positioning part. The second screw transmission pair includes a second adjusting member 335, and the second adjusting member 335 is threadedly connected to the first positioning member 334, and one end of the second adjusting member 335 presses against the second positioning member 333. The second adjusting member 335 is also a screw, such as Figure 7 As shown, when the initial position of the second positioning member 333 needs to be adjusted, the bolt is loosened, and then the screw is screwed to fine-tune the initial position of the second positioning member 333 by the screw, so that the adjustment of the second positioning member 333 is more convenient and accurate.

[0058] In some examples, such as Figures 5 to 9 As shown, the second positioning assembly 340 further includes a second driving member 351, and the second driving member 351 is used to drive the pre-tightening portion 353 to move closer to or away from the positioning portion. Specifically, when the second driving member 351 is a cylinder, the second driving member 351 is fixed to the first mounting member 320, and the second driving member 351 is connected to the pre-tightening portion 353. In some other embodiments, the second driving member 351 can also be an oil cylinder, a linear motor, an electric push rod, or a screw motor.

[0059] Specifically, Figure 6As shown, a transmission plate 352 is provided on the first mounting member 320. The transmission plate 352 is slidably arranged on the first mounting member 320 through a guide rail slider structure. The driving end of the second driving member 351 is connected to the transmission plate 352 through a floating joint. The pre-tightening portion 353 is a profiling block, and the profiling block has a profiling surface adapted to the side surface of the reinforcing bracket 130.

[0060] To enable the initial position of the pre-tightening portion 353 to be adjusted independently, the pre-tightening portion 353 is connected to the transmission plate 352 by bolts. The pre-tightening portion 353 has an oblong hole for the bolts to pass through. The setting direction of the oblong hole is parallel to the movement direction of the pre-tightening portion 353. A third adjusting member 356 is provided on the transmission plate 352. The third adjusting member 356 is threadedly connected to the transmission plate 352. Specifically, the third adjusting member 356 is a screw. As Figure 9 shown, when the initial position of the pre-tightening portion 353 needs to be adjusted, the bolts are loosened, and then the screws are rotated. The initial position of the pre-tightening portion 353 is finely adjusted by the screws, making the adjustment of the pre-tightening portion 353 more convenient and accurate.

[0061] In some other embodiments, the second positioning assembly 340 includes a third positioning member 342 that can rebound. The third positioning member 342 is used to position the end of the reinforcing bracket 130. When the positioning portion moves above the first positioning assembly, the third positioning member 330 and the first positioning member 334 are arranged opposite to each other. When one end of the reinforcing bracket 130 abuts against the positioning angle, the other end of the reinforcing bracket 130 is pre-tightened by the third positioning member 342 that can rebound, so that the end of the reinforcing bracket 130 is maintained in a state of being positioned at the positioning angle, facilitating the subsequent pre-tightening of the pre-tightening portion 353.

[0062] Specifically, the second positioning assembly 340 includes a mounting frame 341 and an elastic member 343. The third positioning member 342 is slidably arranged on the mounting frame 341 through a guiding structure. The elastic member is arranged between the mounting frame and the elastic member, so that the third positioning member has a tendency to move in a direction away from the mounting frame, making the end of the reinforcing bracket 130 maintained in a state of being positioned at the positioning angle, facilitating the subsequent pre-tightening of the pre-tightening portion 353.

[0063] Furthermore, the guiding structure can be a guiding member and a guiding groove fixed to the mounting frame 341, and the movement direction of the third positioning member 342 is restricted by the guiding member and the guiding groove. In a specific embodiment, a pin shaft is provided on the mounting frame 341, and the third positioning member 342 is inserted on the pin shaft so that the third positioning member 342 can perform a linear motion.

[0064] Further, one end of the elastic member 343 presses against the mounting bracket 341, and the other end presses against the third positioning member 342. The elastic member 343 enables the third positioning member 342 to rebound. When the reinforcement bracket 130 needs to be positioned with the second positioning assembly 340 through the positioning portion, one end of the reinforcement bracket 130 first abuts against the positioning corner, and then the other end presses against the third positioning member 342, so that the elastic member 343 is in a compressed state, providing enough space to place the rest of the reinforcement bracket 130.

[0065] When the other end of the reinforcement bracket 130 abuts against the first positioning member 334 and one side of the reinforcement bracket 130 abuts against the second positioning member 333, under the action of the elastic member 343, both ends of the reinforcement bracket 130 are pre-tensioned and positioned. The setting of the third positioning member 342 facilitates the placement of the reinforcement bracket 130 and can automatically pre-tension both ends of the reinforcement bracket 130. In the embodiment of the present application, the elastic member 343 is preferably a spring.

[0066] In some other embodiments, the third positioning member 342 has a guiding portion, and the guiding portion is used to guide the end of the reinforcement bracket 130 between the third positioning member 342 and the first positioning member 334. With the setting of the guiding portion, when placing the reinforcement bracket 130, the worker does not need to use an extra hand to push against the third positioning member 342. Under the guiding action of the guiding portion, the end of the reinforcement bracket 130 is slowly guided between the third positioning member 342 and the first positioning member 334, facilitating the quick positioning of the reinforcement bracket 130.

[0067] The vehicle door frame has a left part and a right part. Correspondingly, the reinforcement plate 120 also has a left part and a right part. To enable the reinforcement welding tooling 300 of the present application to simultaneously position and limit the left and right parts of the reinforcement plate 120 and simultaneously limit the left and right parts of the reinforcement bracket 130. There are two sets of the first positioning assemblies in total. The second positioning assembly 340 is located between the two sets of the first positioning assemblies. The left and right parts of the reinforcement plate 120 are respectively positioned by the two sets of the first positioning assemblies; there are two positioning portions in total, and there are two third positioning members 342 in total. The two positioning portions are respectively located on both sides of the second positioning assembly 340. When the positioning portion moves above the first positioning assembly, the third positioning member 342 aligns with the first positioning member 334. One positioning portion and one third positioning member 342 cooperate to position and limit both ends of the reinforcement bracket 130. Correspondingly, there are two pre-tensioning portions 353 in total. One pre-tensioning portion 353 corresponds to one positioning portion. The specific structural diagram is as Figure 4 and Figure 5 shown.

[0068] As Figure 3 shown, the embodiment of the present application also provides a welding device, and the welding device includes a spot welder 200 and the above-mentioned reinforcement welding tooling 300 for the vehicle door frame reinforcement bracket.

[0069] The spot welding heads 210 of the spot welder 200 cannot move left and right, but can only move up and down. In order for the reinforcement welding tooling 300 that can simultaneously position and limit the left and right parts of the reinforcement plate 120 and simultaneously limit the left and right parts of the reinforcement bracket 130 to be used on the spot welder 200. The reinforcement welding tooling 300 for the automotive door frame reinforcement bracket of the present application further includes a second mounting member 310. The first mounting member 320 is slidably disposed on the second mounting member 310 through a linear guide 311, so that the first mounting member 320 can be translated in the horizontal direction.

[0070] During use, the second mounting member 310 is fixed on the mounting platform of the spot welder 200. After the left part of the reinforcement plate 120 and the left part of the reinforcement bracket 130 that are positioned and fixed are welded together by the spot welding head 210, pushing the first mounting member 320 can move the welding points of the right part of the reinforcement plate 120 and the right part of the reinforcement bracket 130 that are positioned and fixed under the electric welding head, and then electric welding operation is performed to complete the welding of the right part of the reinforcement plate 120 and the right part of the reinforcement bracket 130.

[0071] In order that the first mounting member 320 does not move relative to the second mounting member 310 when the reinforcement plate 120 and the reinforcement bracket 130 are placed, a limiting structure is provided between the first mounting member 320 and the second mounting member 310.

[0072] Specifically, as Figures 12 to 17 shown, two limiting blocks 312 are arranged at intervals on the second mounting member 310. A sliding groove 325 is provided on the first mounting member 320, and a sliding pin 323 is provided on the sliding groove 325. The sliding groove 325 is arranged perpendicular to the movement direction of the first mounting member 320. A rotatable stop block 324 is also provided on the first mounting member 320. The stop block 324 can rotate to the middle of the sliding groove 325 to limit the sliding of the sliding pin 323 in the sliding groove 325.

[0073] When the sliding pin 323 moves to one end of the sliding groove 325, a part of the sliding pin 323 is between the two limiting blocks 312. At this time, the first mounting member 320 cannot be pushed, which is convenient for positioning the reinforcement bracket 130 and the reinforcement plate 120; when the sliding pin 323 moves to the other end of the sliding groove 325, the sliding of the first mounting member 320 is not restricted by the limiting blocks 312, so it can slide freely, which is convenient for electric welding of the positioned reinforcement plate 120 and the reinforcement bracket 130.

[0074] The above-mentioned reinforcement welding tooling 300 can be used in cooperation with the spot welder 200 to simultaneously position and limit the left and right parts of the reinforcement plate 120 and simultaneously limit the left and right parts of the reinforcement bracket 130. In addition, the welding operations of the right part of the reinforcement plate 120 and the right part of the reinforcement bracket 130 and the welding operations of the left part of the reinforcement plate 120 and the left part of the reinforcement bracket 130 can be performed at one time.

[0075] The embodiments of the present application have been described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the above embodiments, and various changes can be made without departing from the gist of the present application within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. A reinforcement welding tool for a car door frame reinforcement bracket, characterized in that: include A first positioning assembly, used to strengthen the positioning of the plate; A second positioning assembly is disposed near an end of the first positioning assembly; A third positioning assembly, comprising a retractable positioning portion, the positioning portion being capable of moving above the first positioning assembly, the positioning portion cooperating with the second positioning assembly to position the reinforcing bracket on the reinforcing plate; The pre-tightening assembly comprises a pre-tightening portion which can move toward the positioning portion, and the pre-tightening portion cooperates with the positioning portion to pre-tighten the reinforcing bracket positioned on the reinforcing plate.

2. The reinforcement welding tool for the automobile door frame reinforcement bracket according to claim 1 is characterized in that: The positioning portion has a positioning angle, and the pre-tightening force provided by the second positioning assembly acts on the reinforcing bracket so that a portion of the reinforcing bracket abuts against the positioning angle.

3. The reinforcement welding tool for the automobile door frame reinforcement bracket according to claim 2 is characterized in that: The positioning portion includes a first positioning member and a second positioning member, the first positioning member cooperates with the second positioning member to form the positioning angle, the second positioning member is arranged opposite to the pre-tightening portion, and when the positioning portion moves above the first positioning component, the first positioning member is arranged opposite to the second positioning component.

4. The reinforcement welding tool for the automobile door frame reinforcement bracket according to claim 3 is characterized in that: The first positioning member can be adjusted along the telescopic direction, and the second positioning member is arranged on the first positioning member, and the second positioning member can be adjusted along the telescopic direction.

5. The reinforcement welding tool for the automobile door frame reinforcement bracket according to claim 3 is characterized in that: The second positioning assembly includes a third positioning member capable of rebounding, and when the positioning portion moves to above the first positioning assembly, the third positioning member is arranged opposite to the first positioning member.

6. The reinforcement welding tool for the automobile door frame reinforcement bracket according to claim 5 is characterized in that: The second positioning component includes a mounting frame and an elastic member. The third positioning member is slidably disposed on the mounting frame through a guide structure. The elastic member is disposed between the mounting frame and the elastic member so that the third positioning member has a tendency to move in a direction away from the mounting frame.

7. The reinforcement welding tool for the automobile door frame reinforcement bracket according to claim 5 is characterized in that: The third positioning member has a guiding portion, and the guiding portion is used to guide the end of the reinforcing bracket to between the third positioning member and the first positioning member.

8. The reinforcement welding tool for the automobile door frame reinforcement bracket according to claim 2 is characterized in that: There are two groups of the first positioning components, the second positioning component is located between the two groups of the first positioning components, there are two positioning parts, the two positioning parts are respectively located on both sides of the second positioning component, and there are two pre-tightening parts.

9. The reinforcement welding tool for automobile door frame reinforcement bracket according to any one of claims 1 to 8, characterized in that: The first positioning assembly includes at least one positioning pin and at least one positioning column, and the positioning pin cooperates with the positioning column to position the reinforcing plate.

10. A welding device, characterized in that: The invention comprises a reinforcing welding tool for a reinforcing bracket of an automobile door frame as described in any one of claims 1 to 9.

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