Multi-station welding fixing device for automobile frame

Abstract

The utility model relates to the technical field of welding and fixing, and discloses a multi-station welding and fixing device for an automobile frame, which comprises a driving part fixed on a welding table; the multiple fixing blocks are fixed to the welding table, and the fixing blocks are located between the driving pieces; the movable blocks are arranged opposite to the fixed blocks, the movable blocks are in transmission connection with the driving part, and the movable blocks are driven by the driving part to be close to the fixed blocks to fix a frame or to be far away from the fixed blocks to release the frame. A plurality of fixed blocks and a plurality of movable blocks are arranged in the device, and the movable blocks are controlled to be close to or far away from the fixed blocks through the driving piece, so that a plurality of automobile frames are fixed or released.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding fixing technical field more specifically, especially, it is a kind of automobile frame multi-station welding fixing device. BACKGROUND

[0002] In the field of automobile manufacturing, the frame as the core component of the whole vehicle structure, its welding quality is directly related to the safety and stability of the whole vehicle. The traditional frame welding process generally adopts single-station welding mode, single-station welding needs to start after completing the welding of one frame, which limits the efficiency of production line, and it is difficult to meet the needs of mass production, and for different models and sizes of frame, single-station welding equipment often needs to be re-adjusted and configured, which not only consumes time and effort, but also limits the flexibility and adaptability of production line.

[0003] Therefore, an automobile frame multi-station welding fixing device is needed, which can fix multiple frames at the same time and facilitate batch welding. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of automobile frame multi-station welding fixing device to solve the problems existing in prior art, and the device is provided with several fixed blocks and several movable blocks, and the movable blocks are controlled to approach or move away from the fixed blocks by driving member to realize the fixation or release of multiple automobile frames.

[0005] To achieve the above-mentioned purpose, the utility model provides the following scheme: the utility model provides a kind of automobile frame multi-station welding fixing device, comprising: driving member, the driving member is fixed on welding table;Several fixed blocks, several fixed blocks are fixed on the welding table, and the fixed blocks are located between the driving member;Several movable blocks, the movable blocks are oppositely arranged with the fixed blocks, and several movable blocks are drivingly connected with the driving member, and the movable blocks are driven to approach the fixed blocks to realize the fixation of frame or move away from the fixed blocks to release the frame.

[0006] According to the automobile frame multi-station welding fixing device provided by the utility model, the movable block is in arc-shaped structure, and the movable block is fixed with sliding block at both ends of arc-shaped outer side, and the sliding block is slidingly connected with the driving member.

[0007] According to the automobile frame multi-station welding fixing device provided by the utility model, the driving member includes first threaded rod, second threaded rod, first motor and second motor, the first threaded rod and the second threaded rod are respectively fixed on both sides of the welding table, one end of the first threaded rod is rotatably connected to first support block, and the other end is connected to the output end of the first motor, one end of the second threaded rod is rotatably connected to second support block, and the other end is connected to the output end of the second motor.

[0008] According to the automobile frame multi-station welding fixing device, the first supporting block and the second supporting block are fixed on the welding table.

[0009] According to the automobile frame multi-station welding fixing device, the sliding blocks at the two ends of the movable block are arranged in penetration on the first threaded rod and the second threaded rod, and the sliding blocks at the two ends of the movable block are in threaded connection with the first threaded rod and the second threaded rod.

[0010] According to the automobile frame multi-station welding fixing device, the fixed block is in arc-shaped structure, and the arc-shaped end of the fixed block is symmetrically arranged with the arc-shaped end of the movable block.

[0011] According to the automobile frame multi-station welding fixing device, two lifting frames are movably arranged on the welding table, a welding frame is connected between the two lifting frames, a welding head is installed below the welding frame, and the welding head is located at the top of the fixed block and the movable block.

[0012] According to the automobile frame multi-station welding fixing device, the welding table is fixed with a sliding groove on the two sides, the lifting frame is slidably installed in the sliding groove, the electric telescopic rods are connected to the inner wall of the sliding groove.

[0013] The utility model discloses the following technical effects:

[0014] The device is provided with a plurality of fixed blocks and a plurality of movable blocks, the fixed blocks are matched with the movable blocks, when the movable blocks are driven by the driving members and approach the fixed blocks, a plurality of automobile frames can be fixed, multi-station welding fixing of the automobile frames is realized, when the movable blocks are away from the fixed blocks, the automobile frames are released, and the automobile frames after welding are convenient to take out. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings.

[0016] Fig. 1 It is the whole structure schematic diagram of the utility model;

[0017] Fig. 2 It is the whole structure schematic diagram of the utility model;

[0018] Fig. 3 Another working state structure schematic view of the utility model;

[0019] Among them, 1, welding platform; 2, first threaded rod; 3, first motor; 4, second threaded rod; 5, second motor; 6, movable block; 7, sliding block; 8, fixed block; 9, welding frame; 10, welding head; 11, lifting frame; 12, sliding slot; 13, electric telescopic rod; 14, first support block; 15, second support block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0021] Automobile frame welding is a key link in the automobile manufacturing process, which directly affects the safety, stability and overall performance of the automobile. The automobile frame needs to bear the weight of the whole vehicle and various vibrations and impacts, so the welding material needs to have high toughness. Selecting appropriate welding materials, such as Q235, Q345 and other alloy steels, is crucial to ensuring welding quality. The selection of welding equipment has a significant impact on welding quality. Arc welding and laser welding are commonly used welding equipment, but the limitations of equipment performance, especially the insufficient performance of domestic inverter spot welding machines, lead to reliance on imported equipment, increasing costs. Welding parameters such as current, voltage, speed and temperature need to be precisely controlled to ensure the quality and strength of the weld. Improper setting of these parameters may result in welding defects. The problems in the process of automobile frame welding involve material selection, equipment performance, process control, quality detection, intelligent application and tooling design. Solving these problems requires comprehensive consideration of technical innovation, process improvement and quality control.

[0022] The patent with publication number CN220217264U discloses a kind of automobile frame assembly high-precision welding fixture, including bottom plate, the upper end of left of bottom plate is provided with vertical plate, two slide rails are set on bottom plate along left and right direction, and two slide rails are set with interval in front and back, first fixing mechanism is set on two slide rails, the inside of bottom plate is hollow, and is provided with driving mechanism, and the driving end of driving mechanism is connected with first fixing mechanism, and first fixing mechanism is slid along the setting direction of slide rail, installation slot is opened in vertical plate, and second fixing mechanism is set on installation slot. First fixing mechanism includes four connection blocks, two connection blocks are slidably arranged on two slide rails, and the top end of connection block is fixedly connected with displacement plate.

[0023] The first fixing mechanism further comprises a mounting plate vertically arranged at the left upper end of the displacement plate, a second clamping plate parallel to the mounting plate is arranged at the left side of the mounting plate, the second clamping plate is connected with the mounting plate through a plurality of elastic connecting pieces, and the right end of the vertical plate is provided with a first clamping plate, and the proximal end of the first clamping plate and the proximal end of the second clamping plate are both arc-shaped and recessed inward.

[0024] The driving mechanism comprises a threaded rod arranged in the bottom plate in the left-right direction, the left and right ends of the threaded rod are fixed with the left and right walls of the bottom plate through bearings respectively, a threaded block is sleeved and fixed on the threaded rod, an extension slot is formed on the bottom plate in the length direction of the threaded rod, the threaded block extends upward to the top end of the bottom plate through the extension slot, and is fixed with the displacement plate, and the right end of the bottom plate is provided with a motor, the right end of the threaded rod extends out of the bottom plate and is coaxially connected with the output shaft of the motor.

[0025] The second fixing mechanism comprises a gas cylinder vertically arranged in the mounting slot, the telescopic end of the gas cylinder faces upward and is connected with a horizontal plate.

[0026] The first fixing mechanism can be driven by the driving mechanism to move towards the vertical plate, so as to clamp the object placed between the vertical plate and the first fixing mechanism in self-adaptive transverse direction, and the object can be vertically clamped by starting the second fixing mechanism, so as to clamp multiple objects of different dimensions together for welding.

[0027] In known technology, the automobile frame can only be welded in a single station during the welding process, which limits the parallelism of the welding operation, resulting in a decrease in overall production efficiency. Due to the fact that welding can only be performed at one station, multiple components cannot be processed simultaneously, increasing the production cycle. Single-station welding can cause heat generated during the welding process to be concentrated in one area, which can easily cause welding distortion. Especially when welding larger or more complex structures of the frame, the control of distortion becomes more difficult, and an additional straightening process may be required to correct the distortion. Since the welding operation is concentrated at one station, the welding quality can be affected by factors such as the skill level of the operator, the state of the welding equipment, etc., resulting in inconsistent welding quality. This instability can affect the safety and reliability of the entire vehicle. Single-station welding limits the flexibility of the welding process, and cannot be quickly adjusted according to the needs of different vehicle models or structures. This can result in the need to reconfigure equipment and tooling when producing different vehicle models, increasing production preparation time and cost.

[0028] In single-station welding, the arrangement of welding sequence becomes more important. Unreasonable welding sequence can lead to the superposition of welding stress, increasing the risk of deformation. Therefore, it is necessary to precisely plan the welding sequence to ensure the welding quality and the stability of the structure. Since welding can only be carried out at one station, other equipment and stations may be idle, resulting in a decrease in overall equipment utilization. This inefficient utilization can affect the economic benefits of the enterprise. The problems of automobile frame in single-station welding mainly include production efficiency, welding deformation control, welding quality, process flexibility, welding sequence, and equipment utilization. To solve these problems, a multi-station welding scheme is needed to improve production efficiency and welding quality.

[0029] In order to make the above-mentioned purposes, features and advantages of the present application more apparent, specific embodiments will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] As shown in Figs. 1-3 The present application provides a kind of automobile frame multi-station welding fixing device, it include: driving piece, driving piece is fixed on welding table 1;Several fixed blocks 8, several fixed blocks 8 are fixed on welding table 1, fixed block 8 is located between driving piece;Several movable blocks 6, movable block 6 is oppositely arranged with fixed block 8, several movable blocks 6 are drivingly connected with driving piece, movable block 6 is driven to approach fixed block 8 by driving piece and realizes the fixation of car frame or away from fixed block 8 and release car frame.

[0031] Fixed block 8 is oppositely arranged with movable block 6, forms several automobile frame welding stations, movable block 6 is driven to approach fixed block 8 by driving piece, can be clamped and fixed to automobile frame, realizes the fixation of automobile frame multi-station welding.

[0032] Fixed block 8 is arc-shaped structure, several fixed blocks 8 are all welded and fixed on welding table 1, movable block 6 is arc-shaped structure, several movable blocks 6 are respectively matched with fixed block 8, the arc-shaped bending degree of fixed block 8 and the arc-shaped bending degree of movable block 6 are symmetrically arranged, movable block 6 arc-shaped outer side both ends are welded and fixed with sliding block 7, sliding block 7 is slidingly connected with driving piece.

[0033] The driving member comprises a first threaded rod 2, a second threaded rod 4, a first motor 3 and a second motor 5, one end of the first threaded rod 2 is rotatably connected to a first supporting block 14, the other end is connected to the output end of the first motor 3, the first supporting block 14 is fixed on the welding table 1, the second threaded rod 4 is rotatably connected to a second supporting block 15, the other end is connected to the output end of the second motor 5, and the second supporting block 15 is fixed on the welding table 1. The first motor 3 and the second motor 5 drive the first threaded rod 2 and the second threaded rod 4 to rotate, the first threaded rod 2 and the second threaded rod 4 rotate synchronously, and the sliding blocks 7 on both sides of the movable block 6 are driven to slide simultaneously, so that the movable block 6 moves towards or away from the fixed block 8. The sliding block 7 is provided with an internal thread, and the internal thread is matched with the external thread on the first threaded rod 2 and the second threaded rod 4, so that the first threaded rod 2 and the second threaded rod 4 can drive the sliding block 7 to slide along the first thread 2 and the second thread 4 respectively when rotating.

[0034] The fixed block 8 is fixed, the automobile frame is placed between the fixed block 8 and the movable block 6, the first motor 3 and the second motor 5 are started, the first threaded rod 2 and the second threaded rod 4 rotate simultaneously, the sliding blocks 7 slide along the first threaded rod 2 and the second threaded rod 4 respectively, the movable block 6 moves towards the fixed block 8, the automobile frame is clamped and fixed, a plurality of fixed blocks 8 and movable blocks 6 can simultaneously fix a plurality of automobile frames, and the plurality of automobile frames can be welded simultaneously.

[0035] The welding table 1 is provided with a sliding groove 12 at both ends, the lifting frame 11 is slidably connected in the sliding groove 12, the electric telescopic rods 13 are fixedly installed at the bottom of the lifting frame 11, the other end of the electric telescopic rods 13 is fixed on the inner wall of the sliding groove 12, and the two electric telescopic rods 13 can cooperatively control the stable sliding of the lifting frame 11 in the sliding groove 12; the lifting frame 11 is an electric telescopic rod 13 in the embodiment, the height can be adjusted, the welding frame 9 is welded and fixed between the two lifting frames 11, the height of the welding frame 9 can be adjusted through the lifting frame 11, the welding operation of the automobile frame is facilitated, the welding head 10 is installed at the bottom of the welding frame 9, and the welding head 10 is located at the top of the fixed block 8 and the movable block 6, so that the welding operation is facilitated. The position of the welding frame 9 above the welding table 1 is controlled through the electric telescopic rod 13, so that the welding frame 9 does not affect the placement of the automobile frame.

[0036] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the present application.

[0037] The above-described embodiments are merely preferred modes of the present application, and are not intended to limit the scope of the present application. Various modifications and improvements to the technical solutions of the present application made by those of ordinary skill in the art without departing from the design spirit of the present application shall fall within the scope of protection of the present application as defined by the claims.

Claims

1. A multi-station welding and fixing device for automobile frames, characterized in that, The utility model relates to a welding frame fixing device, including: Driving part is fixed on the welding platform (1); A plurality of fixed blocks (8) are fixed on the welding platform (1), and the fixed blocks (8) are located between the driving parts; A plurality of movable blocks (6) are oppositely arranged with the fixed blocks (8), and a plurality of movable blocks (6) are drivingly connected with the driving parts, and the movable blocks (6) are driven by the driving parts to approach the fixed blocks (8) to realize the fixation of the frame or away from the fixed blocks (8) to release the frame.

2. The multi-station welding fixture for an automotive frame of claim 1, wherein: The movable block (6) is arc-shaped structure, the movable block (6) arc-shaped outer side both ends are fixed with sliding block (7), the sliding block (7) is connected with the driving part sliding.

3. The multi-station welding fixture for an automotive frame of claim 2, wherein: The driving part includes first threaded rod (2), second threaded rod (4), first motor (3) and second motor (5), the first threaded rod (2) and the second threaded rod (4) are fixed on the both sides of the welding platform (1) respectively, one end of the first threaded rod (2) is rotatably connected to first support block (14), the other end is connected to the output end of the first motor (3), one end of the second threaded rod (4) is rotatably connected to second support block (15), the other end is connected to the output end of the second motor (5).

4. The multi-station welding fixture for an automotive frame of claim 3, wherein: The first support block (14) and the second support block (15) are fixed on the welding platform (1).

5. The multi-station welding fixture for an automotive frame of claim 4, wherein: The sliding block (7) at both ends of the movable block (6) is arranged through the first threaded rod (2) and the second threaded rod (4), and the sliding block (7) at both ends of the movable block (6) is screw connected with the first threaded rod (2) and the second threaded rod (4).

6. The multi-station welding fixture for an automotive frame of claim 2, wherein: The fixed block (8) is arc-shaped structure, the fixed block (8) arc-shaped end with the arc-shaped end of movable block (6) symmetry is arranged.

7. The multi-station welding fixture for an automotive frame of claim 1, wherein: The welding platform (1) movably is provided with two lifting frames (11), two lifting frames (11) are connected with welding frame (9), welding head (10) is installed below welding frame (9), and welding head (10) is located at the top of fixed block (8) and movable block (6).

8. The multi-station welding fixture for an automotive frame of claim 7, wherein: The both sides of the welding platform (1) are fixed with sliding groove (12), the lifting frame (11) is slidably installed in the sliding groove (12), and the bottom of the lifting frame (11) is connected with electric telescopic rod (13) on both sides.

Images