Automobile heat shield welding tool
By adding a sensor device to the welding fixture of the heat insulation cover, the problem of misalignment between the upper and lower molds was solved, enabling precise alignment and rapid rotation of the molds, thereby improving operational efficiency and product qualification rate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- AI RUIHONGTAI (ZHEJIANG) AUTOMOTIVE TECH CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-06-26
AI Technical Summary
The upper and lower molds of the heat insulation cover spot welding fixture are prone to rotation and misalignment when open and closed, which affects the mold positioning, resulting in inconvenient operation, high scrap rate and low work efficiency.
A sensor device is added to the welding fixture of the heat insulation cover. The sensor displays the non-aligned state to ensure that the upper and lower molds are accurately aligned. The sensor and the cylinder drive the slider and the pad to achieve precise positioning and rotation of the mold.
It improves operational convenience, reduces scrap rate, increases pass rate, improves work efficiency, and ensures rapid mold alignment and multi-position spot welding capability.
Smart Images
Figure CN224408497U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of automotive heat shield welding equipment, specifically relating to an automotive heat shield welding fixture. Background Technology
[0002] In long-term work practice, when the upper and lower molds of the heat insulation cover spot welding fixture are open and closed, the upper mold is prone to rotation and misalignment, which affects the mold closing positioning and causes the fixture to be scrapped and affects the cycle time; it is inconvenient for workers to operate and use and reduces work efficiency. Utility Model Content
[0003] The purpose of this invention is to address the issue of improper tooling positioning when the upper and lower molds of the heat insulation cover spot welding fixture are open or closed. By adding sensor devices to the upper and lower molds, misalignment of the fixture is indicated by the sensor indicator light not illuminating, thus avoiding operational, scrap, and fixture efficiency problems. The technical solution is as follows:
[0004] A welding fixture for automotive heat shields, characterized in that: it includes a support base 1 and a movable turntable 2 rotatably connected to the middle of the upper surface of the support base 1; a bending mechanism 3 is connected to the left rear corner of the upper surface of the movable turntable 2; a positioning base 4 is connected to the center of the upper surface of the movable turntable 2; support sub-frames 5 are connected to the left and right rear sides of the upper surface of the movable turntable 2; fixed brackets 6 are connected to the left and right edges of the upper surface of the support base 1; a rotating pressing die 7 is inserted into the middle of the lower surface of the fixed brackets 6; the bending mechanism 3 includes a support plate 3-1, a cylinder 3-2, a pad 3-3, and a slide rail 3-4. A cylinder 3-2 is connected to the middle of the inner edge of the lower surface of the support plate 3-1. A pad 3-3 is connected to the center of the upper surface of the telescopic end of the cylinder 3-2. A slide rail 3-4 is connected to the upper edge of the inner surface of the support plate 3-1. A slider on the slide rail 3-4 is connected to the outer surface of the pad 3-3. The support plate 3-1 is T-shaped and connected to the upper surface of the movable turntable 2. The rotating mold 7 includes a cylinder 7-1, a horizontal plate 7-2, a column 7-3, a bearing sleeve 7-4, a pressure block 7-5, and a sensor 7-6. The telescopic end of the cylinder 7-1 is shown in the lower surface... A bearing sleeve 7-4 is connected at the center of the bearing sleeve 7-4. A horizontal plate 7-2 is inserted above the side surface of the bearing sleeve 7-4. Columns 7-3 are symmetrically connected to the middle left and right sides of the upper surface of the horizontal plate 7-2. A pressure block 7-5 is connected to the center of the lower surface of the bearing sleeve 7-4. A sensor 7-6 is connected to the left side of the lower surface of the horizontal plate 7-2. The hydraulic cylinder 7-1 is connected to the middle of the upper surface of the fixed bracket 6. Insert pins 7-2-1 are symmetrically inserted through the middle left and right sides of the upper surface of the horizontal plate 7-2. Nuts 7-2-2 are inserted above the side surface of the insert pins 7-2-1. A ball bearing 7-2-3 is inserted at the center of the bearing. The ball bearing 7-2-3 and the insert post 7-2-1 are connected to each other by a bearing. The bearing sleeve 7-4 includes a connecting rod 7-4-1, a retaining ring 7-4-2, and a collar 7-4-3. The retaining ring 7-4-2 is inserted at the lower side surface of the connecting rod 7-4-1. The collar 7-4-3 is rotatably inserted at the lower edge of the side surface of the connecting rod 7-4-1. The pressure block 7-5 is connected to the center of the lower surface of the collar 7-4-3. A positioning sensor is provided at the middle of the left side of the upper surface of the support base 1. A base plate is provided on the left side surface of the movable turntable 2.
[0005] The beneficial effects of this utility model are: it facilitates operation by staff, allows for quick alignment of the pressing mold and the lower mold, reduces scrap rate and increases pass rate, allows for mold rotation at any time, and allows for precise positioning, thereby improving work efficiency. Attached Figure Description
[0006] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0007] Figure 2This is a schematic diagram of the bending mechanism 3 of this utility model;
[0008] Figure 3 This is a schematic diagram of the rotating mold 7 of this utility model;
[0009] Figure 4 This is a schematic diagram of the horizontal plate 7-2 structure of this utility model;
[0010] Figure 5 This is a schematic diagram of the bearing sleeve 7-4 of this utility model;
[0011] In the diagram: 1. Support base; 2. Movable turntable; 3. Bending mechanism; 4. Positioning base; 5. Support sub-frame; 6. Fixed bracket; 7. Rotating mold; 3-1. Support plate; 3-2. Cylinder; 3-3. Pad; 3-4. Slide rail; 7-1. Hydraulic cylinder; 7-2. Horizontal plate; 7-3. Column; 7-4. Bearing sleeve; 7-5. Pressure block; 7-6. Sensor; 7-2-1. Insert post; 7-2-2. Nut; 7-2-3. Ball bearing; 7-4-1. Connecting rod; 7-4-2. Snap ring; 7-4-3. Detailed Implementation
[0012] Reference Figures 1-5The welding fixture for an automotive heat shield is characterized by comprising a support base 1 and a movable turntable 2 rotatably connected to the middle of the upper surface of the support base 1. A bending mechanism 3 is connected to the left rear corner of the upper surface of the movable turntable 2. A positioning base 4 is connected to the center of the upper surface of the movable turntable 2. Support sub-frames 5 are connected to the left and right rear sides of the upper surface of the movable turntable 2. Fixed brackets 6 are connected to the left and right edges of the upper surface of the support base 1. A rotating pressing die 7 is inserted into the middle of the lower surface of the fixed brackets 6. The bending mechanism 3 includes a support plate 3-1, a cylinder 3-2, a pad 3-3, and a slide rail 3-1. 4. A cylinder 3-2 is connected to the middle of the inner edge of the lower surface of the support plate 3-1. A pad 3-3 is connected to the center of the upper surface of the telescopic end of the cylinder 3-2. A slide rail 3-4 is connected to the upper edge of the inner surface of the support plate 3-1. A slider on the slide rail 3-4 is connected to the outer surface of the pad 3-3. The support plate 3-1 is T-shaped and connected to the upper surface of the movable turntable 2. The rotating mold 7 includes a cylinder 7-1, a horizontal plate 7-2, a column 7-3, a bearing sleeve 7-4, a pressure block 7-5, and a sensor 7-6. The telescopic end of the cylinder 7-1 is shown in the lower surface... A bearing sleeve 7-4 is connected at the center of the bearing sleeve 7-4. A horizontal plate 7-2 is inserted above the side surface of the bearing sleeve 7-4. Columns 7-3 are symmetrically connected to the middle left and right sides of the upper surface of the horizontal plate 7-2. A pressure block 7-5 is connected to the center of the lower surface of the bearing sleeve 7-4. A sensor 7-6 is connected to the left side of the lower surface of the horizontal plate 7-2. The hydraulic cylinder 7-1 is connected to the middle of the upper surface of the fixed bracket 6. Insert pins 7-2-1 are symmetrically inserted through the middle left and right sides of the upper surface of the horizontal plate 7-2. Nuts 7-2-2 are inserted above the side surface of the insert pins 7-2-1. The lower surface of the insert pins 7-2-1... A ball bearing 7-2-3 is inserted at the center. The ball bearing 7-2-3 and the insert post 7-2-1 are connected to each other by a bearing. The bearing sleeve 7-4 includes a connecting rod 7-4-1, a retaining ring 7-4-2 and the collar 7-4-3. The retaining ring 7-4-2 is inserted at the lower side surface of the connecting rod 7-4-1. The collar 7-4-3 is rotatably inserted at the lower edge of the side surface of the connecting rod 7-4-1. The pressure block 7-5 is connected to the center of the lower surface of the collar 7-4-3. A positioning sensor is provided at the middle of the left side of the upper surface of the support base 1. A base plate is provided on the left side surface of the movable turntable 2.
[0013] In use, the operator first moves and fixes the support base 1 to the appropriate position. Then, the car heat shield is placed on the support sub-frame 5. Next, the sensor 7-6 on the pressure mold 7 is rotated to align with the base piece on the positioning plate on the upper surface of the pressure block 7-5. At the same time, when the positioning sensor on the support base 1 aligns with the base piece on the movable turntable 2, the cylinder 7-1 drives the horizontal plate 7-2 to move downward. Simultaneously, the pressure block 7-5 presses down on the car heat shield, pressing it firmly onto the positioning base 4 and the support sub-frame 5. Then, a welding machine is used to weld the front of the car heat shield. Next, the cylinder 3-2 on the bending mechanism 3 is activated, causing the conveyor belt on the cylinder 3-2 to extend and drive the pad 3-3 to slide on the slide rail 3-4. The pad 3-3 then bends the welded piece on the car heat shield. Finally, the operator holds the handle on the movable turntable 2 and rotates the movable turntable 2. At 180°, the pressure block 7-5 is rotated simultaneously via the positioning base 4, the support subframe 5, and the automotive heat shield. Simultaneously, the pressure block 7-5 rotates on the collar 7-4-3, and the collar 7-4-3 rotates on the connecting rod 7-4-1. At the same time, the side plate on the pressure block 7-5 pushes the ball 7-2-3 to insert the ball 7-2-3 into the insert 7-2-1. After rotation, welding is performed again. Finally, after welding is completed, the telescopic end on the hydraulic cylinder 7-1 is retracted.
[0014] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.
Claims
1. A welding fixture for automotive heat shields, characterized in that: It includes a support base (1) and a movable turntable (2) rotatably connected to the middle of the upper surface of the support base (1). A bending mechanism (3) is connected to the left rear corner of the upper surface of the movable turntable (2). A positioning base (4) is connected to the center of the upper surface of the movable turntable (2). Support sub-frames (5) are connected to the left and right rear sides of the upper surface of the movable turntable (2). Fixed brackets (6) are connected to the left and right edges of the upper surface of the support base (1). A rotating pressure mold (7) is inserted into the middle of the lower surface of the fixed bracket (6).
2. The welding fixture for an automotive heat shield according to claim 1, characterized in that: The bending mechanism (3) includes a support plate (3-1), a cylinder (3-2), a pad (3-3), and a slide rail (3-4). The cylinder (3-2) is connected to the middle of the inner edge of the lower surface of the support plate (3-1). The pad (3-3) is connected to the center of the upper surface of the telescopic end of the cylinder (3-2). The slide rail (3-4) is connected to the upper edge of the inner surface of the support plate (3-1). The slider on the slide rail (3-4) is connected to the outer surface of the pad (3-3). The support plate (3-1) is T-shaped and is connected to the upper surface of the movable turntable (2).
3. The welding fixture for an automotive heat shield according to claim 1, characterized in that: The rotating mold (7) includes a cylinder (7-1), a horizontal plate (7-2), a column (7-3), a bearing sleeve (7-4), a pressure block (7-5), and a sensor (7-6). The bearing sleeve (7-4) is connected to the center of the lower surface of the telescopic end of the cylinder (7-1). The horizontal plate (7-2) is inserted above the side surface of the bearing sleeve (7-4). The columns (7-3) are symmetrically connected to the middle of the left and right sides of the upper surface of the horizontal plate (7-2). The pressure block (7-5) is connected to the center of the lower surface of the bearing sleeve (7-4). The sensor (7-6) is connected to the left side of the lower surface of the horizontal plate (7-2). The cylinder (7-1) is connected to the middle of the upper surface of the fixed bracket (6).
4. The welding fixture for an automotive heat shield according to claim 3, characterized in that: The upper surface of the horizontal plate (7-2) is symmetrically perforated with inserts (7-2-1) at the middle left and right sides. Nuts (7-2-2) are inserted above the side surface of the inserts (7-2-1). Ball bearings (7-2-3) are inserted at the center of the lower surface of the inserts (7-2-1). The ball bearings (7-2-3) and the inserts (7-2-1) are connected to each other by bearings.
5. The welding fixture for an automotive heat shield according to claim 3, characterized in that: The bearing sleeve (7-4) includes a connecting rod (7-4-1), a retaining ring (7-4-2), and a collar (7-4-3). The retaining ring (7-4-2) is inserted into the lower side surface of the connecting rod (7-4-1), and the collar (7-4-3) is rotatably inserted into the lower edge of the side surface of the connecting rod (7-4-1). The pressure block (7-5) is connected to the center of the lower surface of the collar (7-4-3).
6. The welding fixture for an automotive heat shield according to claim 1, characterized in that: A positioning sensor is provided at the middle left side of the upper surface of the support base (1), and a base plate is provided on the left side surface of the movable turntable (2).