Fixture device for welding and positioning body-in-white plate
By designing a clamping device suitable for body-in-white sheet metal, precise positioning of sheet metal of different sizes and rapid adjustment of welding angles were achieved, solving the problem of insufficient versatility of clamping devices in existing technologies and improving production efficiency and welding quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-03-24
AI Technical Summary
Existing clamping devices are difficult to effectively clamp body-in-white panels of different sizes, which cannot meet the production needs of various models. In addition, the traditional method requires manual handling or adjustment of the panel position, resulting in low production efficiency.
A clamping device was designed, comprising a frame, a worktable, a drive assembly, and a clamping mechanism. Through the cooperation of the fixed clamping assembly and the moving clamping assembly, it can accurately position and clamp body-in-white panels of different sizes. The drive assembly drives the worktable to rotate and adjust the welding angle, reducing manual operation. At the same time, the spray gun is connected to the moving clamping assembly to achieve real-time cooling.
It enables efficient clamping of body-in-white panels of different sizes and rapid switching of welding angles, reducing non-working time, improving production efficiency, and suppressing the expansion of the heat-affected zone through real-time cooling, thereby improving welding quality.
Smart Images

Figure CN224026849U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive welding technology, and more specifically, to a clamping device for welding and positioning body-in-white sheet metal. Background Technology
[0002] In today's booming automotive manufacturing industry, the welding of body-in-white panels, as a crucial step in the automotive production process, is becoming increasingly important. With the diversification of the automotive market, consumers' demands for car styles and performance are constantly increasing, and automotive manufacturers are continuously launching new models to meet these demands. Different car models exhibit diverse dimensions and specifications in their body-in-white panels, with varying lengths, thicknesses, and other parameters.
[0003] Existing clamping devices struggle to effectively hold body-in-white panels of varying sizes, failing to adequately meet the production needs of multiple vehicle models and limiting the versatility and flexibility of production lines. Furthermore, traditional methods require manual handling or adjustment of the panels to meet the welding angle requirements of different workstations, consuming significant manpower and resulting in excessively long off-duty times, severely reducing overall production efficiency. To address these issues, this device was invented. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a clamping device for welding and positioning body-in-white sheet metal to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a clamping device for welding and positioning body-in-white sheet metal, comprising:
[0006] frame;
[0007] The worktable has a column fixedly installed at the middle of its bottom, and the column is rotatably connected to the middle of the frame.
[0008] The drive assembly, mounted on the frame, is used to rotate the column.
[0009] The clamping mechanism is mounted on the worktable and includes a fixed clamping component and a movable clamping component.
[0010] Furthermore, the drive assembly includes a No. 1 motor mounted on the frame, with a gear connected to the output shaft of the No. 1 motor, and a gear ring that meshes with the gear is fixedly installed at the bottom of the column.
[0011] Furthermore, the fixed clamping assembly includes a support column fixedly installed on one side of the top of the workbench, a clamping frame fixedly installed on the top of the support column, a cylinder on the top of the clamping frame, and a clamping plate connected to the end of the piston rod of the cylinder.
[0012] Furthermore, the worktable is provided with an installation slot, and the movable clamping assembly includes a screw that is rotatably installed in the installation slot. A second motor is provided on the worktable, and the output shaft of the second motor is connected to the screw. A moving block is threadedly connected to the screw, and the width of the moving block is equal to the width of the installation slot. A second clamping frame is fixedly installed on the top of the moving block, and a second cylinder is provided on the top of the second clamping frame. A second clamping plate is connected to the end of the piston rod of the second cylinder.
[0013] Furthermore, both clamping frames No. 1 and No. 2 are "[" shaped structures, and they are positioned facing each other.
[0014] Furthermore, a connecting groove is provided on the workbench, and the connecting groove is connected to the mounting groove. A horizontal plate is slidably installed in the connecting groove, and the horizontal plate is fixedly connected to the moving block. A bracket is fixedly installed on the top of the horizontal plate, and a spray gun is installed on the bracket.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. In this utility model, the fixed clamping component and the moving clamping component work together to clamp body white sheets of different sizes (length, thickness), covering the production needs of more car models; by driving the column and worktable to rotate on the horizontal plane through the drive component, the welding angle can be quickly switched to adapt to the processing needs of different workstations, eliminating the need for manual handling or adjustment of sheet positions, greatly reducing non-working time and improving overall production efficiency.
[0017] 2. In this utility model, the spray gun is connected to the moving clamping assembly through the horizontal plate and moves synchronously with the screw drive to achieve real-time cooling of the welding area, suppress the expansion of the heat-affected zone, and reduce stress concentration caused by changes in metal structure. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0019] Figure 1 This is a structural schematic diagram of the present invention;
[0020] Figure 2 The structural bottom view provided for this utility model;
[0021] Figure 3 A structural side view provided for this utility model;
[0022] Figure 4 A top view of the structure provided for this utility model.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1. Frame; 2. Workbench; 3. Column; 4. Drive assembly; 401. Motor No. 1; 402. Gear; 403. Gear ring; 5. Clamping mechanism; 501. Fixed clamping assembly; 5011. Support column; 5012. Clamping frame No. 1; 5013. Cylinder No. 1; 5014. Clamping plate No. 1; 502. Moving clamping assembly; 5021. Screw; 5022. Motor No. 2; 5023. Moving block; 5024. Clamping frame No. 2; 5025. Cylinder No. 2; 5026. Clamping plate No. 2; 6. Horizontal plate; 7. Support; 8. Spray gun. Detailed Implementation
[0025] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0026] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0027] See attached document Figures 1-4 The fixture device for welding and positioning body-in-white sheet metal in this embodiment includes a frame 1, a worktable 2, a drive assembly 4, and a clamping mechanism 5.
[0028] See attached document Figure 2 The workbench 2 is positioned above the frame 1. A column 3 is fixedly installed at the center of the bottom of the workbench 2, and the column 3 is rotatably connected to the center of the frame 1. A drive assembly 4 is mounted on the frame 1 to realize the rotation of the column 3. The drive assembly 4 includes a primary motor 401 mounted on the frame 1. The output shaft of the primary motor 401 is connected to a gear 402. A gear ring 403 that meshes with the gear 402 is fixedly installed at the bottom of the column 3. When in use, the primary motor 401 is turned on, and the output shaft of the primary motor 401 drives the gear 402 to rotate, thereby realizing the rotation of the gear ring 403, and thus realizing the rotation of the column 3 and the workbench 2. This adapts to the needs of different workstations, reduces manual handling, and improves the ease of operation.
[0029] See attached document Figure 1The clamping mechanism 5 is set on the worktable 2 and includes a fixed clamping component 501 and a movable clamping component 502. The distance between the fixed clamping component 501 and the movable clamping component 502 is adjustable so as to clamp body-in-white sheets of different sizes.
[0030] See attached document Figure 3 and Figure 4 The fixed clamping assembly 501 includes a support column 5011 fixedly installed on one side of the top of the workbench 2. A first clamping frame 5012 is fixedly installed on the top of the support column 5011. A first cylinder 5013 is provided on the top of the first clamping frame 5012. A first clamping plate 5014 is connected to the end of the piston rod of the first cylinder 5013. The piston rod of the first cylinder 5013 passes through the top of the first clamping frame 5012. The first clamping plate 5014 is located inside the first clamping frame 5012. When in use, the first cylinder 5013 is activated, and the piston rod of the first cylinder 5013 drives the first clamping plate 5014 to move longitudinally. The workbench 2 has an installation groove. The movable clamping assembly 502 includes a screw 5021 rotatably installed in the installation groove. A second motor 5022 is provided on the workbench 2, and the output shaft of the second motor 5022 is connected to the screw 5021. When in use, the second motor 5022 is activated. Motor 5022, the output shaft of motor 5022 drives screw 5021 to rotate. Screw 5021 is threadedly connected to moving block 5023, and the width of moving block 5023 is equal to the width of the mounting groove, thus limiting the movement of moving block 5023. This allows moving block 5023 to move along the mounting groove during the rotation of screw 5021. A second clamping frame 5024 is fixedly installed on the top of moving block 5023. A second cylinder 5025 is set on the top of the second clamping frame 5024. The piston rod of the second cylinder 5025 is connected to a second clamping plate 5026. The piston rod of the second cylinder 5025 passes through the top of the second clamping frame 5024. The second clamping plate 5026 is set inside the second clamping frame 5024. When in use, the second cylinder 5025 is opened, and the piston rod of the second cylinder 5025 drives the second clamping plate 5026 to move longitudinally.
[0031] Among them, the first clamping frame 5012 and the second clamping frame 5024 are both "[" shaped structures, and they are arranged facing each other. The second clamping frame 5024 moves towards the first clamping frame 5012 under the action of the moving clamping component 502.
[0032] During operation, the body-in-white sheet to be welded is placed between clamping frame 5012 and clamping frame 5024, with one end of the clamping frame 5012 in contact with the inner wall of the side. First, cylinder 5013 is activated, and its piston rod moves clamping plate 5014, initially clamping the body-in-white sheet. Then, motor 5022 is activated, and its output shaft rotates screw 5021, causing moving block 5023 to move clamping frame 5024 towards clamping frame 5012, bringing the inner wall of clamping frame 5024 into contact with the other end of the body-in-white sheet. Next, cylinder 5025 is activated, and its piston rod moves clamping plate 5026, achieving stable clamping of the body-in-white sheet and facilitating subsequent welding.
[0033] See attached document Figure 1 The workbench 2 is also provided with a connecting groove, which is connected to the mounting groove. A horizontal plate 6 is slidably installed in the connecting groove. The horizontal plate 6 is fixedly connected to the moving block 5023, and the horizontal plate 6 and the moving block 5023 are set vertically. A bracket 7 is fixedly installed on the top of the horizontal plate 6. A spray gun 8 is installed on the bracket 7. A water pipe is connected to the spray gun 8. When welding, the external water source is turned on, and the spray gun 8 moves with the moving clamping assembly 502, which is convenient for the operator to pick up. During the welding process, the welding part of the body white sheet is cooled.
[0034] The fixture device for welding and positioning the body-in-white sheet metal controls the rotation of the worktable 2 through the drive component 4 to adjust the welding angle. The coordinated action of the fixed clamping component 501 and the movable clamping component 502 achieves precise positioning and clamping of the body-in-white sheet metal. The movable spray gun 8 is used to cool the welding area in real time, ensuring that the welding process is efficient and stable.
[0035] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A fixture device for welding and positioning of a body-in-white panel, characterized by, Include: Frame (1); Workbench plate (2), the middle position of the bottom of the workbench plate (2) is fixedly installed with a stand (3), and the stand (3) is rotatably connected with the middle position of the frame (1); Drive assembly (4), the drive assembly (4) is arranged on the frame (1), for realizing rotation of the stand (3); Clamping mechanism (5), the clamping mechanism (5) is arranged on the workbench plate (2), including fixed clamping assembly (501) and movable clamping assembly (502).
2. The fixture apparatus for welding and positioning of body-in-white panels according to claim 1, characterized in that: The drive assembly (4) includes a motor (401) arranged on the frame (1), the output shaft of the motor (401) is connected with a gear (402), and the bottom of the stand (3) is fixedly installed with a gear ring (403) meshed with the gear (402).
3. The fixture apparatus for welding and positioning of body-in-white panels of claim 1, wherein: The fixed clamping assembly (501) includes a support (5011) fixedly installed on one side of the top of the workbench plate (2), a first clamping frame (5012) is fixedly installed on the top of the support (5011), a first cylinder (5013) is arranged on the top of the first clamping frame (5012), and a first clamping plate (5014) is connected to the end of the piston rod of the first cylinder (5013).
4. The fixture apparatus for welding and positioning of body-in-white panels according to claim 3, wherein: An installation groove is formed in the workbench plate (2), the movable clamping assembly (502) includes a screw rod (5021) rotatably installed in the installation groove, a second motor (5022) is arranged on the workbench plate (2), and the output shaft of the second motor (5022) is connected with the screw rod (5021), a moving block (5023) is threadedly connected on the screw rod (5021), the width of the moving block (5023) is equal to the width of the installation groove, a second clamping frame (5024) is fixedly installed on the top of the moving block (5023), a second cylinder (5025) is arranged on the top of the second clamping frame (5024), and a second clamping plate (5026) is connected to the end of the piston rod of the second cylinder (5025).
5. The fixture apparatus for welding and positioning of body-in-white panels according to claim 4, wherein: The first clamping frame (5012) and the second clamping frame (5024) are both "["] shaped structures, and are oppositely arranged.
6. The fixture apparatus for welding and positioning of body-in-white panels of claim 4, wherein: A connecting groove is also formed in the workbench plate (2), and the connecting groove is communicated with the installation groove, a cross plate (6) is slidably installed in the connecting groove, the cross plate (6) is fixedly connected with the moving block (5023), a support (7) is fixedly installed on the top of the cross plate (6), and a spray gun (8) is arranged on the support (7).