An inner support type positioner for welding a rectangular box
The design of the internal support displacement fixture solves the problems of flexibility and adaptability of traditional rectangular box welding fixtures, realizes the offsetting of thermal stress deformation and high-precision positioning, adapts to the support requirements of boxes of different specifications, simplifies the structure and facilitates movement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN PENGHUI AIRCRAFT MFG CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-29
Smart Images

Figure CN224295072U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding tooling technology, and in particular to an internal support displacement tooling for welding rectangular boxes. Background Technology
[0002] During the welding of rectangular boxes, thermal stress and welding deformation can easily lead to a decrease in the geometric accuracy of the box. Traditional tooling is mostly rigid in design, cannot be flexibly adjusted, is only suitable for boxes of specific sizes, lacks effective anti-deformation design, and has poor support and fixation effect for thin-walled boxes, which can easily cause deformation or damage. Thermal stress during welding causes deformation of the box (such as warping, twisting, etc.), and it is impossible to adjust the deformation of a specific area. At the same time, traditional tooling has a complex structure, large size, and is inconvenient to move and adjust.
[0003] Therefore, there is a need for a flexible anti-deformation internal support positioning fixture that can offset the thermal stress deformation generated during welding, flexibly adapt to different specifications of boxes, and achieve high-precision positioning. Utility Model Content
[0004] The purpose of this utility model is to provide an internal support displacement fixture for welding rectangular boxes, which solves the shortcomings of the prior art mentioned in the background. It has the functions of rapid positioning, adjustment and displacement, can offset the thermal stress deformation generated during the welding process, flexibly adapt to rectangular boxes of different specifications, and can effectively support thin-walled boxes to avoid deformation or damage.
[0005] To achieve the above objectives, this utility model provides an internal support type displacement fixture for welding rectangular boxes, including an internal support device, a fixture frame, an internal support slide, and a worktable slide. The internal support slide is disposed at one end of the fixture frame, and a first guide wheel set is provided on the internal support slide. The worktable slide is slidably connected to the internal support slide.
[0006] The internal support device includes an internal support frame, a rotary drive mechanism, and support components. Several support components are provided on all four sides of the internal support frame. The rotary drive mechanism is located at both ends of the internal support frame. Lifting devices are provided on both sides of the rotary drive mechanism. Positioning cones are provided at the bottom of the lifting devices at both ends.
[0007] Preferably, both the bottom of the inner support frame and the rotary drive mechanism are provided with a set of traveling wheels, and both sides of the inner support frame are provided with a second set of guide wheels.
[0008] Preferably, the tooling frame is provided with a first linear guide rail, and the worktable slide is slidably connected to the tooling frame through the first linear guide rail.
[0009] Preferably, the lifting device and the rotary drive mechanism are slidably connected via a second linear guide rail.
[0010] Preferably, the support assembly includes a first inner support plate and a second inner support plate, the first inner support plate and the second inner support plate being controlled by independent cylinders, the cylinders being mounted on the inner support frame.
[0011] Preferably, the rotary drive mechanism includes a drive motor, a drive gear, and a turntable gear. The drive gear and the turntable gear are provided with protective covers. The drive gear is connected to the drive motor and meshes with the turntable gear. The turntable gear is fixedly connected to the inner support frame.
[0012] Preferably, the lifting device is configured as a lifting cylinder.
[0013] Preferably, both the first inner support plate and the second inner support plate are made of polyurethane.
[0014] Therefore, the internal support displacement fixture for welding rectangular boxes provided by this utility model has the following beneficial effects: by setting multiple sets of support components inside the internal support device, the amount of anti-deformation in a certain area can be adjusted as a whole or independently, effectively offsetting the thermal stress deformation generated during the welding process. The support plate is controlled and adjusted by an independent cylinder, which can flexibly adapt to rectangular boxes of different sizes and shapes.
[0015] By setting a rotary drive mechanism to rotate the box, multi-angle welding of the box can be achieved. By setting a lifting device, the height of the box can be adjusted according to the actual welding requirements.
[0016] By setting up an internal support slide, internal support device, guide wheel assembly, and walking wheel assembly, the box can be quickly positioned and the internal support of the box can be achieved. By setting up a second linear guide rail and positioning cone, the stability of the box lifting and lowering is ensured. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the internal support displacement tooling for welding rectangular boxes according to an embodiment of the present invention.
[0018] Figure 2 This is a schematic diagram of the internal support device.
[0019] Figure 3 This is a front view of an internal support type displacement tooling for welding rectangular boxes according to an embodiment of the present invention.
[0020] Figure 4 This is a front view of the internal support device;
[0021] Figure 5This is a side view of an internal support displacement tool for welding rectangular boxes according to an embodiment of the present invention.
[0022] Figure Labels
[0023] 1. Internal support device; 101. Internal support frame; 102. Rotary drive mechanism; 1021. Drive motor; 1022. Drive gear; 1023. Turntable gear; 1024. Protective cover shell; 103. First internal support plate; 104. Second internal support plate; 105. Cylinder; 2. Tooling frame; 3. Internal support slide; 4. Worktable slide; 5. First guide wheel assembly; 6. Lifting device; 7. Positioning cone; 8. Traveling wheel assembly; 9. Second guide wheel assembly; 10. First linear guide rail; 11. Second linear guide rail; 12. Housing. Detailed Implementation
[0024] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0025] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.
[0026] Example
[0027] like Figure 1-5 As shown, this utility model discloses an internal support type displacement fixture for welding rectangular boxes, including an internal support device 1, a fixture frame 2, an internal support slide 3, and a worktable slide 4. The internal support device 1 provides support from inside the box 12 to prevent welding deformation. The internal support slide 3 is located at one end of the fixture frame 2, and a first guide wheel set 5 is provided on the internal support slide 3. The worktable slide 4 is slidably connected to the internal support slide 3.
[0028] The internal support device 1 includes an internal support frame 101, a rotary drive mechanism 102, and support components. Several support components are provided on all four sides of the internal support frame 101. The rotary drive mechanism 102 is located at both ends of the internal support frame 101, and lifting devices 6 are provided on both sides of the rotary drive mechanism 102. A positioning cone 7 is provided at the bottom of one end of the lifting device 6. The rotary drive mechanism 102 enables the rotation of the housing 12, facilitating multi-position welding. The lifting device 6 enables the vertical lifting of the housing 12, facilitating the rotation of the housing 12 after positioning and adjusting the welding height. The lifting stroke is adjustable to accommodate housings 12 of different heights.
[0029] Both the bottom of the inner support frame 101 and the rotary drive mechanism 102 are equipped with a set of traveling wheels 8, and the two sides of the inner support frame 101 are equipped with a second set of guide wheels 9, which facilitates the rapid positioning and movement of the inner support device 1 within the housing 12.
[0030] The tooling frame 2 is provided with a first linear guide rail 10. The worktable slide 4 is slidably connected to the tooling frame 2 through the first linear guide rail 10, ensuring that the box 12 moves smoothly into the interior of the inner support frame 101.
[0031] The lifting device 6 and the rotary drive mechanism 102 are slidably connected through the second linear guide rail 11 to improve lifting stability and prevent the box 12 from tilting or shifting.
[0032] The support assembly includes a first inner support plate 103 and a second inner support plate 104. The first inner support plate 103 and the second inner support plate 104 are controlled by independent cylinders 105. The cylinders 105 are mounted on the inner support frame 101 and are independently controlled. The distribution of the support force can be adjusted according to the shape of the box 12 and the welding requirements, and it can flexibly adapt to boxes 12 of different sizes.
[0033] The rotary drive mechanism 102 includes a drive motor 1021, a drive gear 1022, and a turntable gear 1023. A protective housing 1024 is provided around the drive gear 1022 and the turntable gear 1023. The drive gear 1022 is connected to the drive motor 1021 and meshes with the turntable gear 1023. The turntable gear 1023 is fixedly connected to the inner support frame 101. Driven by a motor and equipped with a high-precision reducer, it ensures smooth rotation and accurate positioning, enabling 360° rotation without dead angles, meeting the requirements for multi-angle welding.
[0034] The lifting device 6 is configured as a lifting cylinder 105.
[0035] The first inner support plate 103 and the second inner support plate 104 are both made of polyurethane.
[0036] The workflow of this utility model is as follows: First, the box body 12 is placed on the worktable slide 4 and pushed into the inner support frame 101 by the first linear guide rail 10; then, the inner support device 1 is moved into the box body 12 and positioned with the tooling frame 2 by the positioning cone 7; the cylinder 105 is adjusted according to the shape of the box body 12 and the welding requirements; the lifting device 6 is started and the rotary drive mechanism 102 drives the inner support device 1 and the box body 12 to move upward along the second linear guide rail 11 to a suitable position; the drive motor 1021 is started to realize the rotation and displacement of the box body 12 to meet the multi-angle welding requirements.
[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.
Claims
1. An internal support type displacement fixture for welding rectangular box bodies, characterized in that: It includes an internal support device, a tooling frame, an internal support slide, and a worktable slide. The internal support slide is located at one end of the tooling frame, and a first guide wheel set is provided on the internal support slide. The worktable slide is slidably connected to the internal support slide. The internal support device includes an internal support frame, a rotary drive mechanism, and support components. Several support components are provided on all four sides of the internal support frame. The rotary drive mechanism is located at both ends of the internal support frame. Lifting devices are provided on both sides of the rotary drive mechanism. Positioning cones are provided at the bottom of the lifting devices at both ends.
2. The internal support type displacement fixture for welding rectangular box bodies according to claim 1, characterized in that: Both the bottom of the inner support frame and the rotary drive mechanism are equipped with a set of traveling wheels, and both sides of the inner support frame are equipped with a second set of guide wheels.
3. The internal support type displacement fixture for welding rectangular box bodies according to claim 1, characterized in that: The tooling frame is provided with a first linear guide rail, and the worktable slide is slidably connected to the tooling frame through the first linear guide rail.
4. The internal support type displacement fixture for welding rectangular box bodies according to claim 1, characterized in that: The lifting device and the rotary drive mechanism are slidably connected via a second linear guide rail.
5. The internal support type displacement fixture for welding rectangular box bodies according to claim 1, characterized in that: The support assembly includes a first inner support plate and a second inner support plate, which are each controlled by an independent cylinder, and the cylinder is mounted on the inner support frame.
6. The internal support type displacement fixture for welding rectangular box bodies according to claim 5, characterized in that: The rotary drive mechanism includes a drive motor, a drive gear, and a turntable gear. The drive gear and the turntable gear are covered with protective housings. The drive gear is connected to the drive motor and meshes with the turntable gear. The turntable gear is fixedly connected to the inner support frame.
7. The internal support type displacement fixture for welding rectangular box bodies according to claim 5, characterized in that: The lifting device is configured as a lifting cylinder.
8. The internal support type displacement fixture for welding rectangular box bodies according to claim 5, characterized in that: Both the first inner support plate and the second inner support plate are made of polyurethane.