Automobile frame welding clamp capable of clamping in multiple directions

Abstract

The utility model relates to an automobile frame welding fixture capable of clamping in multiple directions, which belongs to the technical field of automobile frame welding fixtures and comprises a fixed bottom plate, and an omni-directional adjusting mechanism is mounted on the fixed bottom plate. The omni-directional adjusting mechanism comprises a limit adjusting box fixedly installed on one side of the fixed bottom plate and a rotary driving assembly installed in the limit adjusting box, and one side of the rotary driving assembly is connected with a rotary rod piece and a round fixed disc fixedly connected to the end, away from the fixed bottom plate, of the rotary rod piece. According to the automobile frame welding clamp capable of clamping in the multiple directions, the function of adjusting in the multiple directions can be provided, a frame can be adjusted in different directions after being clamped, an operator can accurately adjust the position and the angle of the clamp according to the specific shape and the size of the frame, and the clamping efficiency is improved. In addition, the distance between the clamps can be flexibly controlled, uniform and stable clamping force is provided, and fine adjustment of the clamping force can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile frame welding fixtures, in particular to an automobile frame welding fixture capable of clamping in multiple directions. Background Art

[0002] Automobile frame welding is a key technology in automobile manufacturing. It connects the various components of the automobile frame through welding technology to form a complete frame structure. The automobile frame is an important part of the car. It bears the weight of the car body and the load under various driving conditions. Therefore, the welding quality of the frame directly affects the safety and reliability of the car.

[0003] The background of automobile frame welding can be traced back to the early days of the automobile industry. At that time, most automobile frames were made using riveting technology. However, with the development of the automobile industry, welding technology gradually replaced riveting technology and became the mainstream process for automobile frame manufacturing. Welding technology has the advantages of high connection strength, good sealing, and high production efficiency. It can meet the high quality, high efficiency and high reliability requirements of automobile frame manufacturing.

[0004] The technologies for automobile frame welding mainly include arc welding, gas shielded welding, laser welding, etc. Among them, arc welding is one of the most commonly used welding technologies. It uses the high temperature of the arc to melt the metal and connect them together. Gas shielded welding uses protective gas during the welding process to prevent metal oxidation and contamination, thereby improving welding quality. Laser welding is a high-precision and high-efficiency welding technology that uses the high energy of the laser beam to melt the metal and connect them together.

[0005] With the continuous development of the automobile industry, the requirements for automobile frame welding technology are becoming higher and higher. In the future, automobile frame welding technology will develop in the direction of automation, intelligence and digitalization to improve welding quality, production efficiency and reduce costs. At the same time, with the continuous emergence of new materials and new processes, automobile frame welding technology will also continue to innovate and improve, providing better support for the development of the automobile industry.

[0006] The existing automobile frame welding fixtures have some obvious defects during use, mainly in that they cannot clamp the frame in all directions. This limitation can be traced back to the design and structure of the fixture, as well as the complexity of the welding process itself.

[0007] First, the design of the clamp often only considers some of the appearance features of the frame, while ignoring the unique shape and size of the frame in different directions, which means that the clamp cannot fit tightly to the various surfaces of the frame and thus cannot provide sufficient clamping force. Secondly, the structure of the frame is usually complex, containing a variety of special-shaped parts and geometric shapes. Existing clamps cannot adapt to these complex structures, resulting in the frame easily moving or deforming during the welding process, thus affecting the welding quality. In addition, the high temperature and heat generated during the welding process will cause the frame material to expand and contract thermally, further exacerbating the movement and deformation of the frame. However, existing clamps lack an effective adjustment mechanism and cannot compensate and adapt to this deformation.

[0008] In summary, the design defects and lack of adaptability of existing automobile frame welding fixtures are the main reasons for the inability to fully clamp the frame. These problems seriously affect the welding quality and production efficiency, and further technical improvements and innovations are needed to solve them. Utility Model Content

[0009] 1. Technical issues to be resolved

[0010] In view of the shortcomings of the existing technology, the utility model provides a multi-directional clamping automobile frame welding fixture, which has the advantages of being able to adjust in multiple directions, adapt to complex structures, and fit closely to the frame. It solves the problem that the existing automobile frame welding fixture cannot clamp in all directions, affecting the welding quality and production efficiency.

[0011] (II) Technical solution

[0012] In order to achieve the above-mentioned purpose of being able to adjust in multiple directions, adapt to complex structures, and closely fit the frame, the utility model provides the following technical solutions: a multi-directional clamping automobile frame welding fixture, comprising a fixed bottom plate, on which an omnidirectional adjustment mechanism is installed;

[0013] The omnidirectional adjustment mechanism includes a quotation control box fixedly mounted on one side of the fixed base plate and a rotating drive assembly installed in the control box, a rotating rod and a circular fixed disk fixedly connected to one end of the rotating rod away from the fixed base plate are connected to one side of the rotating drive assembly, an adjustment box is fixedly connected to the center of the circular fixed disk, a clamping drive assembly and two movable adjustment assemblies connected to the clamping drive assembly and located in the adjustment box in a mirror-symmetrical manner are installed in the adjustment box, and clamping assemblies are installed on opposite sides of the two movable adjustment assemblies.

[0014] Furthermore, the rotary drive assembly includes a worm, a handle and a worm wheel; one end of the worm is rotatably connected to the inner wall of the regulating box through a bearing, and the other opposite end passes through the regulating box and is fixedly connected to one side of the handle, the worm and the worm wheel are meshed with each other, and the inner side of the worm wheel is fixedly connected to the outer side of the rotating rod.

[0015] Furthermore, one end of the rotating rod is rotatably connected to the inner wall of the regulating box via a bearing, and the other opposite end sequentially passes through the worm gear and the regulating box and extends to one side of the circular fixed disk and is fixedly connected to the circular fixed disk via bolts, and the outer side of the rotating rod is rotatably connected to the inner side of the regulating box via a bearing.

[0016] Furthermore, the clamping drive assembly includes a dual-axis servo motor, a threaded rod and a rotating support plate; the dual-axis servo motor and one side of the two rotating support plates are fixedly mounted on the same inner wall of the adjustment box, the dual-axis servo motor is located between the opposite sides of the two rotating support plates, one end of the threaded rod is fixedly connected to the output shaft of the dual-axis servo motor, and the other opposite end passes through the movable adjustment assembly and extends to one side of the rotating support plate and is rotatably connected to the rotating support plate through a bearing.

[0017] Furthermore, the movable adjustment component includes a threaded movable block and a movable push plate; the inner side of the threaded movable block is threadedly connected to the outer side of the threaded rod, and the outer side of the threaded movable block is slidably connected to the inner side of the adjustment box and slides in close proximity, and one side of the movable push plate is fixedly connected to one side of the threaded movable block.

[0018] Furthermore, a moving hole for the moving push plate to slide against is provided on a side of the adjusting box away from the fixed bottom plate.

[0019] Furthermore, the clamping assembly includes a connecting rod and an arc-shaped clamp; one side of the connecting rod is fixedly connected to one side of the movable push plate, and one side of the arc-shaped clamp is fixedly connected to one side of the connecting rod.

[0020] (III) Beneficial effects

[0021] Compared with the prior art, the utility model provides a multi-directional clamp for welding automobile frames, which has the following beneficial effects:

[0022] The automobile frame welding fixture capable of multi-directional clamping can provide a multi-directional adjustment function through the mutual cooperation between the omnidirectional adjustment mechanisms on the fixed bottom plate, and can adjust the frame in different directions after clamping, so that the operator can accurately adjust the position and angle of the fixture according to the specific shape and size of the frame to ensure that each clamping point can apply appropriate pressure, and can also flexibly control the distance between the fixtures so that the fixture can fit closely to various surfaces of the frame, provide uniform and stable clamping force, and can achieve fine-tuning of the clamping force, which helps to reduce thermal deformation and stress concentration during welding, thereby significantly improving welding efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 for Figure 1 A partial enlarged schematic diagram of the middle A part;

[0025] Figure 3 for Figure 1 A three-dimensional schematic diagram of the connection structure of the middle regulating box.

[0026] In the figure: 1. fixed base plate; 200. omnidirectional adjustment mechanism; 201. control box; 2021. worm; 2022. turning handle; 2023. worm wheel; 203. rotating rod; 204. circular fixed plate; 205. adjustment box; 2061. dual-axis servo motor; 2062. threaded rod; 2063. rotating support plate; 2071. threaded moving block; 2072. moving push plate; 208. moving hole; 2091. connecting rod; 2092. arc clamp. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0028] See also Figures 1 to 3 , the utility model provides a technical solution: a multi-directional clamping automobile frame welding fixture, comprising a fixed base plate 1, on which an omnidirectional adjustment mechanism 200 is installed;

[0029] By using the omnidirectional adjustment mechanism 200 on the fixed base plate 1 in coordination with each other, a multi-directional adjustment function can be provided, and the frame can be adjusted in different directions after clamping, so that the operator can accurately adjust the position and angle of the clamp according to the specific shape and size of the frame to ensure that each clamping point can apply appropriate pressure, and the distance between the clamps can be flexibly controlled so that the clamps can fit closely to various surfaces of the frame, providing a uniform and stable clamping force, and can achieve fine-tuning of the clamping force, which helps to reduce thermal deformation and stress concentration during welding, thereby significantly improving welding efficiency and accuracy.

[0030] In this embodiment, the omnidirectional adjustment mechanism 200 is used to provide a structure with multi-directional adjustment.

[0031] like Figure 1 , Figure 2 and Figure 3 As shown, the omnidirectional adjustment mechanism 200 includes a quota control box 201 fixedly mounted on one side of a fixed base plate 1 and a rotating drive assembly installed in the control box 201, a rotating rod 203 and a circular fixed disk 204 fixedly connected to one end of the rotating rod 203 away from the fixed base plate 1 are connected to one side of the rotating drive assembly, an adjustment box 205 is fixedly connected to the center of the circular fixed disk 204, a clamping drive assembly and two movable adjustment assemblies connected to the clamping drive assembly and located in the adjustment box 205 in a mirror-symmetrical manner are installed in the adjustment box 205, and clamping assemblies are installed on opposite sides of the two movable adjustment assemblies.

[0032] It should be noted that the rotation drive assembly includes a worm 2021, a handle 2022 and a worm wheel 2023; one end of the worm 2021 is rotatably connected to the inner wall of the control box 201 through a bearing, and the other end thereof passes through the control box 201 and is fixedly connected to one side of the handle 2022. The worm 2021 and the worm wheel 2023 are meshed with each other, and the inner side of the worm wheel 2023 is fixedly connected to the outer side of the rotating rod 203 in order to drive the rotating rod 203 to rotate.

[0033] It can be understood that one end of the rotating rod 203 is rotatably connected to the inner wall of the regulating box 201 through a bearing, and the other end thereof passes through the worm gear 2023 and the regulating box 201 in sequence and extends to one side of the circular fixed disk 204 and is fixedly connected to the circular fixed disk 204 through bolts. The outer side of the rotating rod 203 is rotatably connected to the inner side of the regulating box 201 through a bearing, so as to enable the rotating rod 203 to rotate stably.

[0034] In addition, the clamping drive assembly includes a dual-axis servo motor 2061, a threaded rod 2062 and a rotating support plate 2063; the dual-axis servo motor 2061 and one side of the two rotating support plates 2063 are fixedly mounted on the same inner wall of the adjustment box 205, the dual-axis servo motor 2061 is located between the opposite sides of the two rotating support plates 2063, one end of the threaded rod 2062 is fixedly connected to the output shaft of the dual-axis servo motor 2061, and the other opposite end passes through the movable adjustment assembly and extends to one side of the rotating support plate 2063 and is rotatably connected to the rotating support plate 2063 through a bearing, so as to be able to drive the two movable adjustment assemblies to move at a uniform speed in opposite or opposite directions.

[0035] In this embodiment, the movable adjustment component includes a threaded movable block 2071 and a movable push plate 2072; the inner side of the threaded movable block 2071 is threadedly connected to the outer side of the threaded rod 2062, and the outer side of the threaded movable block 2071 is slidably connected to the inner side of the adjustment box 205 and slides in close proximity. One side of the movable push plate 2072 is fixedly connected to one side of the threaded movable block 2071 in order to be able to stably drive the clamping component to move.

[0036] It should also be noted that a moving hole 208 for the moving push plate 2072 to slide against is provided on the side of the adjustment box 205 away from the fixed bottom plate 1 , in order to further improve the stability of the movement of the moving push plate 2072 .

[0037] It should be further explained that the clamping assembly includes a connecting rod 2091 and an arc-shaped clamp 2092; one side of the connecting rod 2091 is fixedly connected to one side of the movable push plate 2072, and one side of the arc-shaped clamp 2092 is fixedly connected to one side of the connecting rod 2091, so as to stably clamp the automobile frame through the arc-shaped clamp 2092.

[0038] The working principle of the above embodiment is:

[0039] (1) Initial position adjustment:

[0040] According to the shape and size of the frame, the operator rotates the handle 2022 manually to drive the worm 2021 to rotate, and the worm 2021 engages with the worm wheel 2023 to transmit the rotational motion of the handle 2022. The inner side of the worm wheel 2023 is fixedly connected to the outer side of the rotating rod 203, thereby driving the rotating rod 203 to rotate, so as to adjust the position and angle of the circular fixed plate 204 so that the clamping assembly is roughly aligned with the corresponding part of the frame.

[0041] (2) Frame clamping:

[0042] The automobile frame is placed on the fixed base plate 1 and ensured to be located between the clamping components. The dual-axis servo motor 2061 is started, and its output shaft drives the threaded rod 2062 to rotate. The threaded rod 2062 is threadedly connected with the threaded moving block 2071 in the two moving adjustment components, so that the threaded moving block 2071 moves along the axial direction of the threaded rod 2062. Driven by the threaded rod 2062, the threaded moving block 2071 moves toward or away from the dual-axis servo motor 2061. The outer side of 071 is slidably connected to the inner side of the adjustment box 205 to ensure the stability of movement. The moving push plate 2072 is fixedly connected to one side of the threaded moving block 2071 and moves with the movement of the threaded moving block 2071. The movement of the moving push plate 2072 drives the connecting rod 2091 to move. The connecting rod 2091 is connected to the arc clamp 2092, so that the arc clamp 2092 moves toward or away from the frame. The arc clamp 2092 contacts the frame and applies a certain pressure to clamp the frame.

[0043] Compared with the prior art: the automobile frame welding fixture capable of multi-directional clamping can provide a multi-directional adjustment function through the mutual cooperation between the omnidirectional adjustment mechanisms 200 on the fixed base plate 1, and can adjust the frame in different directions after clamping, so that the operator can accurately adjust the position and angle of the clamp according to the specific shape and size of the frame to ensure that each clamping point can apply appropriate pressure, and can also flexibly control the distance between the clamps so that the clamps can fit closely to various surfaces of the frame, provide uniform and stable clamping force, and can achieve fine-tuning of the clamping force, which helps to reduce thermal deformation and stress concentration during welding, thereby significantly improving welding efficiency and accuracy, and solving the problem that the existing automobile frame welding fixture cannot clamp in all directions, affecting welding quality and production efficiency.

[0044] The electrical components appearing in the text are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device that controls a computer, etc., and the existing publicly available power connection technology and power supply are also common knowledge in the field, so this application will not go into details.

[0045] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0046] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A multi-directional clamping automobile frame welding fixture, comprising a fixed base plate (1), characterized in that: An omnidirectional adjustment mechanism (200) is installed on the fixed base plate (1); The omnidirectional adjustment mechanism (200) comprises a quota adjustment box (201) fixedly mounted on one side of the fixed base plate (1) and a rotation drive assembly mounted in the adjustment box (201); a rotation rod (203) and a circular fixed disk (204) fixedly connected to one end of the rotation rod (203) away from the fixed base plate (1) are connected to one side of the rotation drive assembly; an adjustment box (205) is fixedly connected at the center of the circular fixed disk (204); a clamping drive assembly and two movable adjustment assemblies connected to the clamping drive assembly and located in the adjustment box (205) in a mirror-symmetrical manner are mounted in the adjustment box (205); and clamping assemblies are mounted on opposite sides of the two movable adjustment assemblies.

2. The multi-directional clamping automobile frame welding fixture according to claim 1 is characterized in that: The rotary drive assembly comprises a worm (2021), a rotating handle (2022) and a worm wheel (2023); one end of the worm (2021) is rotatably connected to the inner wall of the regulating box (201) via a bearing, and the other end thereof passes through the regulating box (201) and is fixedly connected to one side of the rotating handle (2022); the worm (2021) and the worm wheel (2023) are meshed with each other, and the inner side of the worm wheel (2023) is fixedly connected to the outer side of the rotating rod (203).

3. The multi-directional clamping automobile frame welding fixture according to claim 2 is characterized in that: One end of the rotating rod (203) is rotatably connected to the inner wall of the regulating box (201) via a bearing, and the other end thereof sequentially penetrates the worm gear (2023) and the regulating box (201) and extends to one side of the circular fixed disk (204) to be fixedly connected to the circular fixed disk (204) via bolts, and the outer side of the rotating rod (203) is rotatably connected to the inner side of the regulating box (201) via a bearing.

4. The multi-directional clamping automobile frame welding fixture according to claim 1 is characterized in that: The clamping drive assembly comprises a dual-axis servo motor (2061), a threaded rod (2062) and a rotating support plate (2063); the dual-axis servo motor (2061) and one side of the two rotating support plates (2063) are fixedly mounted on the same inner wall of the adjustment box (205), the dual-axis servo motor (2061) is located between the two opposite sides of the rotating support plates (2063), one end of the threaded rod (2062) is fixedly connected to the output shaft of the dual-axis servo motor (2061), and the other opposite end passes through the movable adjustment assembly and extends to one side of the rotating support plate (2063) and is rotatably connected to the rotating support plate (2063) through a bearing.

5. The automobile frame welding fixture capable of clamping in multiple directions according to claim 4, characterized in that: The movable adjustment component comprises a threaded movable block (2071) and a movable push plate (2072); the inner side of the threaded movable block (2071) is threadedly connected to the outer side of the threaded rod (2062), and the outer side of the threaded movable block (2071) is slidably connected to the inner side of the adjustment box (205) and slides in close contact, and one side of the movable push plate (2072) is fixedly connected to one side of the threaded movable block (2071).

6. The automobile frame welding fixture capable of clamping in multiple directions according to claim 5, characterized in that: A moving hole (208) for the moving push plate (2072) to slide against is provided on a side of the regulating box (205) away from the fixed bottom plate (1).

7. The automobile frame welding fixture capable of clamping in multiple directions according to claim 5, characterized in that: The clamping assembly comprises a connecting rod (2091) and an arc-shaped clamp (2092); one side of the connecting rod (2091) is fixedly connected to one side of the movable push plate (2072), and one side of the arc-shaped clamp (2092) is fixedly connected to one side of the connecting rod (2091).

Images