Welding forming clamp for front floor assembly of electric automobile

Abstract

The invention discloses a welding forming clamp for a front floor assembly of an electric automobile, and relates to the technical field of automobile production, the welding forming clamp comprises a bearing plate, the top end of the bearing plate is provided with symmetrically distributed mounting racks, one side of each mounting rack is provided with a placing seat, the bottom end of the bearing plate is provided with a heat dissipation assembly, and one side of one mounting rack is provided with a rotating assembly; after a to-be-machined front floor assembly of the electric automobile is placed at the top end of a placing seat, a transmission gear set can be driven to drive a synchronous belt set to rotate by starting a rotation control servo motor, then vertical adjusting shafts connected to the two sides in a meshed mode are moved and lifted, and stable movement of a movable clamping plate is achieved; and then the evenly-distributed self-adaptive regulation and control rods can make contact with different high and low faces of the placed front floor assembly of the electric automobile, and stable welding machining of the front floor assembly of the electric automobile after self-adaptive clamping and fixing through the welding forming clamp is achieved.

Description

Technical Field

[0001] This invention relates to the field of automotive manufacturing technology, specifically a welding and forming fixture for the front floor assembly of an electric vehicle. Background Technology

[0002] The front floor assembly of an electric vehicle is the core load-bearing structural component of the front floor area of ​​the vehicle body. It is a key component of the lower part of the vehicle body and integrates sub-components such as floor panel, reinforcing beam, mounting bracket, battery mounting interface, and pedal mounting base. It is the core of "support and connection" connecting the front longitudinal beam, sill beam, and center console. At the same time, it undertakes functions such as front support of the passenger compartment, battery pack fixation, and chassis component installation. During the production of electric vehicles, the front floor assembly needs to be fixed and clamped by welding forming jigs before welding processing.

[0003] When performing clamping and welding processing on the aforementioned electric vehicle front floor assembly welding forming fixture, the electric vehicle front floor assembly is generally clamped by two movable clamping plates. However, the clamping plates are relatively flat, which can lead to insecure clamping when clamping electric vehicle front floor assemblies of different specifications and shapes. This can easily cause loosening during welding, thus affecting the welding quality. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a welding and forming fixture for the front floor assembly of an electric vehicle.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a welding and forming fixture for the front floor assembly of an electric vehicle, comprising a support plate, a symmetrically distributed mounting bracket on the top of the support plate, a placement seat on one side of the mounting bracket, a heat dissipation component mounted on the bottom of the support plate, a rotating component mounted on one side of one of the mounting brackets, an adaptive clamping mechanism on the end of the mounting bracket near the placement seat, the adaptive clamping mechanism comprising a protective frame fixedly connected to the bottom of the placement seat, a rotary control servo motor mounted on one side of the protective frame, a transmission gear set connected to the output end of the rotary control servo motor, the transmission gear set being disposed inside the protective frame, a rotary gear connected to the transmission gear set via a bearing on the end of the protective frame away from the transmission gear set, a synchronous belt set connecting the rotary gear and the transmission gear set, a flipping placement mechanism on the end of the placement seat near the adaptive clamping mechanism, and a tensioning mechanism on one side of the top of the adaptive clamping mechanism.

[0006] As described above, both the transmission gear set and the rotating gear are provided with a meshing vertical adjustment shaft on one side, and the top of the vertical adjustment shaft is provided with a movable clamping plate that is rotatably connected via a rotating shaft.

[0007] As described above, a hollow fixed box is fixedly connected to the top of the movable clamping plate, a motion control servo motor is installed on one side of the hollow fixed box, a lead screw is connected to the output end of the motion control servo motor, and a uniformly distributed movable nut seat is threaded onto the surface of the lead screw.

[0008] As described above, a movable clamping plate is provided on one side of the movable nut seat and fixedly connected by a connecting rod. A fixed guide shaft is connected through the interior of the movable clamping plate, and a fixed clamping plate is provided at the end of the movable clamping plate away from the movable clamping plate.

[0009] As described above, the movable clamping plate is provided with an adaptive adjustment rod that is connected through it at one end near the hollow fixed box, and the adaptive adjustment rod is evenly distributed inside the movable clamping plate. A limit spring is provided between the adaptive adjustment rod and the movable clamping plate. One end of the limit spring is fixedly connected to the outer wall of the adaptive adjustment rod, and the other end is fixedly connected to the inner wall of the movable clamping plate.

[0010] The aforementioned flipping and placing mechanism includes a storage box fixedly connected to the placement seat on one side of the protective frame. An electric telescopic cylinder is installed inside the storage box. The output end of the electric telescopic cylinder is provided with a uniformly distributed rack, and a fixed shaft is fixedly connected to the side of the output end of the electric telescopic cylinder near the rack.

[0011] As described above, an adjusting gear connected by a bearing is provided inside the storage box on the side near the output end of the electric telescopic cylinder, and a locking rod is connected to one side of the adjusting gear by a connecting rod.

[0012] As described above, the locking rod is internally slidably connected to a movable adjusting rod, and the movable adjusting rod is connected to the locking rod by bolts.

[0013] As described above, a guide groove is provided on one side of the storage box, and an adjustment seat is slidably connected to one side of the storage box. An adjustment groove for moving a fixed shaft is provided inside the adjustment seat, and a fixed plate is fixedly connected to the top of the adjustment seat.

[0014] The aforementioned tensioning mechanism includes an electric push rod installed on one side of the vertical adjustment shaft. The output end of the electric push rod is rotatably connected to a limit clamping plate via a rotating shaft. A stabilizing auxiliary rod is rotatably connected between the bottom end of the limit clamping plate and the vertical adjustment shaft via a rotating shaft, and the stabilizing auxiliary rods are symmetrically distributed at the bottom end of the limit clamping plate.

[0015] Compared with the prior art, the welding and forming fixture for the front floor assembly of an electric vehicle has the following advantages: I. This invention, through an adaptive clamping mechanism, enables adaptive fixing and clamping of the front floor assembly of an electric vehicle after placement. The adaptive control rods are evenly distributed, enabling multi-point clamping after contact with the front floor assembly of the electric vehicle, avoiding loosening and misalignment in the clamping area, and improving the stability during welding after fixing.

[0016] Second, the present invention, through the setting of the flipping placement mechanism, can realize the rotation of the locking rod, and as the locking rod rotates, it can separate from the movable clamping plate, so that the movable clamping plate can be unrestricted. Furthermore, the movement of the electric telescopic cylinder can realize the synchronous movement of the fixed shaft, thereby realizing the stable extension of the fixed plate. As the vertical adjustment shaft moves, it can cooperate with the movable clamping plate to achieve flipping, and after flipping, it can facilitate the placement of the front floor assembly of the electric vehicle. In addition, the adaptive clamping mechanism can improve the convenience after placement.

[0017] Third, the present invention achieves the rotation of the limiting clamping plate by setting the tensioning mechanism. As the limiting clamping plate rotates, the movable clamping plate can be stably limited. The rotation of the limiting clamping plate can avoid the excessive rotation of the movable clamping plate. At the same time, the movable clamping plate after being stably limited can strengthen the fixed limitation of the front floor assembly of the electric vehicle.

[0018] Other advantages, objectives and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be learned from the practice of the invention. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the mounting bracket of the present invention; Figure 3 This is a three-dimensional cross-sectional view of the rotating component of the present invention; Figure 4 This is a three-dimensional structural schematic diagram of the adaptive control lever of the present invention; Figure 5 This is a three-dimensional cross-sectional view of the protective frame of the present invention; Figure 6 This is a three-dimensional exploded view of the storage box of the present invention; Figure 7 This is a three-dimensional structural diagram of the movable clamping plate of the present invention; Figure 8 This is a three-dimensional structural diagram of the vertical adjustment shaft of the present invention; Figure 9 For the present invention Figure 7 Enlarged structural diagram at point A; Figure 10 For the present invention Figure 8 A magnified structural diagram at point B in the middle.

[0020] In the diagram: 1. Bearing plate; 2. Mounting bracket; 3. Placement seat; 4. Heat dissipation assembly; 5. Rotating assembly; 6. Adaptive clamping mechanism; 601. Protective frame; 602. Rotary control servo motor; 603. Transmission gear set; 604. Rotary gear; 605. Synchronous belt set; 606. Vertical adjustment shaft; 607. Movable clamping plate; 608. Hollow fixed box; 609. Motion control servo motor; 610. Lead screw; 611. Movable nut seat; 612. Movable clamping plate; 61 3. Fixed guide shaft; 614. Fixed clamping plate; 615. Adaptive adjustment rod; 616. Limiting spring; 7. Flipping and placing mechanism; 701. Storage box; 702. Electric telescopic cylinder; 703. Rack; 704. Fixed shaft; 705. Adjusting gear; 706. Locking rod; 707. Movable adjusting rod; 708. Adjusting seat; 709. Adjusting groove; 710. Fixed plate; 8. Tensioning mechanism; 801. Electric push rod; 802. Limiting clamping plate; 803. Stabilizing auxiliary rod. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figures 1-10 As shown, the present invention provides a technical solution: a welding and forming fixture for the front floor assembly of an electric vehicle, including a support plate 1, a mounting frame 2 symmetrically distributed on the top of the support plate 1, a placement seat 3 on one side of the mounting frame 2, a heat dissipation component 4 installed at the bottom of the support plate 1, and a rotating component 5 installed on one side of one mounting frame 2.

[0023] An adaptive clamping mechanism 6 is provided at one end of the mounting bracket 2 near the placement base 3. The adaptive clamping mechanism 6 includes a protective frame 601 fixedly connected to the bottom of the placement base 3. A rotary control servo motor 602 is installed on one side of the protective frame 601. The output end of the rotary control servo motor 602 is connected to a transmission gear set 603, and the transmission gear set 603 is located inside the protective frame 601. A rotary gear 604 connected by a bearing is provided at one end of the protective frame 601 away from the transmission gear set 603. A synchronous belt set 605 is connected between the rotary gear 604 and the transmission gear set 603. A flipping placement mechanism 7 is provided at one end of the placement base 3 near the adaptive clamping mechanism 6. A tensioning mechanism 8 is provided on one side of the top of the adaptive clamping mechanism 6.

[0024] Both the transmission gear set 603 and the rotating gear 604 are provided with a vertically adjusting shaft 606 on one side, which is meshed with the vertical adjusting shaft 606. The top of the vertical adjusting shaft 606 is provided with a movable clamping plate 607 that is rotatably connected by a rotating shaft.

[0025] The top of the movable clamping plate 607 is provided with a hollow fixed box 608 that is fixedly connected. A motion control servo motor 609 is installed on one side of the hollow fixed box 608. The output end of the motion control servo motor 609 is connected to a lead screw 610. The surface of the lead screw 610 is threaded with evenly distributed movable nut seats 611.

[0026] A movable clamping plate 612 is fixedly connected to one side of the movable nut seat 611 via a connecting rod. A fixed guide shaft 613 is connected through the interior of the movable clamping plate 612. A fixed clamping plate 614 is fixedly connected to the end of the movable clamping plate 607 away from the movable clamping plate 612.

[0027] An adaptive adjustment rod 615 is provided through one end of the movable clamping plate 607 near the hollow fixed box 608, and the adaptive adjustment rod 615 is evenly distributed inside the movable clamping plate 607. A limit spring 616 is provided between the adaptive adjustment rod 615 and the movable clamping plate 607. One end of the limit spring 616 is fixedly connected to the outer wall of the adaptive adjustment rod 615, and the other end is fixedly connected to the inner wall of the movable clamping plate 607.

[0028] Working principle of adaptive clamping mechanism 6: After the front floor assembly of the electric vehicle to be processed is placed on the top of the placement seat 3, the start of the servo motor 602 by rotation control can realize the rotation of the transmission gear set 603 connected to the output end. At the same time, when the transmission gear set 603 rotates, it can rotate the connected synchronous belt set 605, thereby realizing the displacement and lifting of the vertical adjustment shaft 606 meshed on both sides, and realizing the stable movement of the movable clamping plate 607.

[0029] Then, the motion control servo motor 609 is started, so that the motion control servo motor 609 can rotate the lead screw 610 connected to the output end. As the lead screw 610 rotates, the movable nut seat 611 connected to the surface thread can move, and then the movable clamping plate 612 connected to it can move synchronously. After the movable clamping plate 612 moves, it separates from the adaptive control rod 615, so that the adaptive control rod 615 is no longer restricted.

[0030] As the movable clamping plate 607 moves, the connected adaptive control rod 615 moves synchronously. When the adaptive control rod 615 moves, it can squeeze the limiting spring 616 set on one side, so that the evenly distributed adaptive control rod 615 can contact the different high and low surfaces of the front floor assembly of the electric vehicle, thus achieving adaptive clamping and avoiding loosening due to incomplete clamping.

[0031] Furthermore, after contact, the movement of the servo motor 609 is restarted to move the clamping plate 612, and after moving, it contacts the adaptive control rod 615 to limit and fix the adaptive control rod 615. With the setting of the placement seat 3 and the movable clamping plate 607, the front floor assembly of the electric vehicle can be stably welded after adaptive clamping and fixing by the welding forming fixture.

[0032] Working principle of the flipping and placing mechanism 7: The flipping and placing mechanism 7 includes a storage box 701 fixedly connected to the placement seat 3 on one side of the protective frame 601. An electric telescopic cylinder 702 is installed inside the storage box 701. The output end of the electric telescopic cylinder 702 is provided with a uniformly distributed rack 703, and a fixed shaft 704 is fixedly connected to the side of the output end of the electric telescopic cylinder 702 near the rack 703.

[0033] Inside the storage box 701, near the output end of the electric telescopic cylinder 702, there is an adjusting gear 705 connected by a bearing. On one side of the adjusting gear 705, there is a locking rod 706 connected by a connecting rod.

[0034] The locking rod 706 has an internal sliding connection to a movable adjusting rod 707, and the movable adjusting rod 707 is connected to the locking rod 706 by bolts.

[0035] A guide groove is provided on one side of the storage box 701. An adjustment seat 708 is slidably connected to the guide groove and the side of the storage box 701. An adjustment groove 709 is provided inside the adjustment seat 708 for the fixed shaft 704 to move. A fixed plate 710 is fixedly connected to the top of the adjustment seat 708.

[0036] Before clamping and fixing the front floor assembly of the electric vehicle, the electric telescopic cylinder 702 inside the storage box 701 can be activated in advance to move the rack 703 connected to the output end of the electric telescopic cylinder 702. As the rack 703 moves, it can push the set adjustment gear 705, thereby realizing the rotation of the adjustment gear 705. As the adjustment gear 705 rotates, it can synchronously rotate the connected locking rod 706, so that the locking rod 706 can synchronously rotate the movable adjustment rod 707 set at the top. At the same time, the movable adjustment rod 707 can separate from the movable clamping plate 607 set at the top when rotating.

[0037] Meanwhile, when the output end of the electric telescopic cylinder 702 moves, it can move the connected fixed shaft 704, so that the fixed shaft 704 can slide inside the adjusting seat 708. Since the adjusting seat 708 has an adjusting groove 709 inside, it can move synchronously with the movement of the fixed shaft 704, so that the adjusting seat 708 can move upward and synchronously move the fixed plate 710 set at the top. When the movable adjusting rod 707 rotates and separates, the fixed plate 710 can move upward synchronously.

[0038] At this time, the vertical adjustment shaft 606 can be moved. Since the vertical adjustment shaft 606 and the movable clamping plate 607 are rotatably connected, the movable clamping plate 607 can be flipped as the vertical adjustment shaft 606 moves and cooperates with the upward-moving fixed plate 710. After flipping, it is convenient to place and fix the front floor assembly of the electric vehicle on the welding forming fixture.

[0039] Working principle of tensioning mechanism 8: The tensioning mechanism 8 includes an electric push rod 801 installed on one side of the vertical adjustment shaft 606. The output end of the electric push rod 801 is rotatably connected to a limit clamping plate 802 via a rotating shaft. A stabilizing auxiliary rod 803 is rotatably connected between the bottom end of the limit clamping plate 802 and the vertical adjustment shaft 606 via a rotating shaft, and the stabilizing auxiliary rod 803 is symmetrically distributed at the bottom end of the limit clamping plate 802.

[0040] Before the front floor assembly of the electric vehicle needs to be fixed for easy tilting and adjustment, the electric push rod 801 can be activated to move the pull rod at the output end. The electric push rod 801 can pull the connected limiting clamping plate 802. After being pulled, the limiting clamping plate 802 can pull the stabilizing auxiliary rod 803 set at the bottom simultaneously and limit the limiting clamping plate 802. As a result, after being pulled, the limiting clamping plate 802 can rotate, thereby losing its limit on the movable clamping plate 607. This prevents the movable clamping plate 607 from being affected when tilting. After rotating, the limiting clamping plate 802 can adjust the angle of the movable clamping plate 607 when tilting, avoiding excessive tilting and facilitating the quick placement and fixing of the front floor assembly of the electric vehicle.

[0041] Working principle of heat dissipation component 4: heat dissipation component 4 consists of a drive motor, a rotating shaft and heat dissipation fan blades. After the drive motor is powered on, the rotating shaft connected to the output end can be rotated. At the same time, the heat dissipation fan blades can be rotated synchronously during rotation, and the airflow blown out after rotation can achieve cooling and heat dissipation during the welding process.

[0042] Working principle of rotating component 5: Rotating component 5 consists of drive motor 2 and rotating gear set. After drive motor 2 is started, the rotating gear set connected to the output end can rotate. As the rotating gear set rotates, the connected placement seat 3 can rotate. The front floor assembly of the electric vehicle is clamped and fixed by placement seat 3, movable clamping plate 607 and adaptive adjustment rod 615 and rotated synchronously, which is suitable for welding processing operations at different angles.

[0043] This invention achieves the following through the coordinated operation of the adaptive clamping mechanism 6, the flipping and placing mechanism 7, and the stretching mechanism 8: Adaptive clamping fixation of the front floor assembly of an electric vehicle; The adaptive control lever 615 has a fastening limit, which improves the adaptive fixing strength; The flipping of the movable clamping plate 607 enables the stable placement of the front floor assembly of the electric vehicle, improving the efficiency of fixing after placement. The stabilizing limit of the limiting clamping plate 802, together with the setting of the movable clamping plate 607, improves the fixing stability of the front floor assembly of the electric vehicle. This reduced operational complexity and production costs; Improve the securing and clamping of the front floor assembly of electric vehicles to enhance stability during welding.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding and forming fixture for the front floor assembly of an electric vehicle, comprising a support plate (1), characterized in that: The top of the support plate (1) is provided with symmetrically distributed mounting brackets (2), and a placement seat (3) is provided on one side of the mounting bracket (2). A heat dissipation component (4) is installed at the bottom of the support plate (1), and a rotating component (5) is installed on one side of one of the mounting brackets (2). The mounting bracket (2) is provided with an adaptive clamping mechanism (6) at one end near the placement seat (3). The adaptive clamping mechanism (6) includes a protective frame (601) fixedly connected to the bottom of the placement seat (3). A rotary control servo motor (602) is installed on one side of the protective frame (601). The output end of the rotary control servo motor (602) is connected to a transmission gear set (603), and the transmission gear set (603) is located inside the protective frame (601). A rotary gear (604) connected by a bearing is provided at one end of the protective frame (601) away from the transmission gear set (603). A synchronous belt set (605) is connected between the rotary gear (604) and the transmission gear set (603). A flipping placement mechanism (7) is provided at one end of the placement seat (3) near the adaptive clamping mechanism (6). A tensioning mechanism (8) is provided on one side of the top of the adaptive clamping mechanism (6).

2. The welding and forming fixture for the front floor assembly of an electric vehicle according to claim 1, characterized in that: The transmission gear set (603) and the rotating gear (604) are each provided with a vertically adjusting shaft (606) that meshes with each other on one side. The top of the vertically adjusting shaft (606) is provided with a movable clamping plate (607) that is rotatably connected by a rotating shaft.

3. The welding and forming fixture for the front floor assembly of an electric vehicle according to claim 2, characterized in that: The top of the movable clamping plate (607) is provided with a hollow fixed box (608) that is fixedly connected. A motion control servo motor (609) is installed on one side of the hollow fixed box (608). The output end of the motion control servo motor (609) is connected to a lead screw (610). The surface of the lead screw (610) is threaded with evenly distributed movable nut seats (611).

4. The welding and forming fixture for the front floor assembly of an electric vehicle according to claim 3, characterized in that: A movable clamping plate (612) is fixedly connected to one side of the movable nut seat (611) by a connecting rod. A fixed guide shaft (613) is connected through the interior of the movable clamping plate (612). A fixed clamping plate (614) is fixedly connected to the end of the movable clamping plate (607) away from the movable clamping plate (612).

5. A welding and forming fixture for the front floor assembly of an electric vehicle according to claim 4, characterized in that: An adaptive adjustment rod (615) is provided through one end of the movable clamping plate (607) near the hollow fixed box (608), and the adaptive adjustment rod (615) is evenly distributed inside the movable clamping plate (607). A limit spring (616) is provided between the adaptive adjustment rod (615) and the movable clamping plate (607). One end of the limit spring (616) is fixedly connected to the outer wall of the adaptive adjustment rod (615), and the other end is fixedly connected to the inner wall of the movable clamping plate (607).

6. The welding and forming fixture for the front floor assembly of an electric vehicle according to claim 1, characterized in that: The flipping and placing mechanism (7) includes a storage box (701) fixedly connected to the placement seat (3) on one side of the protective frame (601). An electric telescopic cylinder (702) is installed inside the storage box (701). The output end of the electric telescopic cylinder (702) is provided with a uniformly distributed rack (703), and a fixed shaft (704) is fixedly connected to the side of the output end of the electric telescopic cylinder (702) near the rack (703).

7. A welding and forming fixture for the front floor assembly of an electric vehicle according to claim 6, characterized in that: Inside the storage box (701), near the output end of the electric telescopic cylinder (702), there is an adjusting gear (705) connected by a bearing. One side of the adjusting gear (705) is connected to a locking rod (706) via a connecting rod.

8. A welding and forming fixture for the front floor assembly of an electric vehicle according to claim 7, characterized in that: The locking rod (706) is internally slidably connected to a movable adjusting rod (707), and the movable adjusting rod (707) and the locking rod (706) are connected by bolts.

9. A welding and forming fixture for the front floor assembly of an electric vehicle according to claim 7, characterized in that: The storage box (701) has a guide groove on one side, and an adjustment seat (708) is slidably connected to the side of the storage box (701). The adjustment seat (708) has an adjustment groove (709) inside for the fixed shaft (704) to move. The top of the adjustment seat (708) has a fixed plate (710) fixedly connected.

10. A welding and forming fixture for the front floor assembly of an electric vehicle according to claim 2, characterized in that: The tensioning mechanism (8) includes an electric push rod (801) installed on one side of the vertical adjustment shaft (606). The output end of the electric push rod (801) is rotatably connected to a limiting clamping plate (802) via a rotating shaft. A stabilizing auxiliary rod (803) is rotatably connected between the bottom end of the limiting clamping plate (802) and the vertical adjustment shaft (606) via a rotating shaft. The stabilizing auxiliary rod (803) is symmetrically distributed at the bottom end of the limiting clamping plate (802).

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