Stamping die for lower cover of oil tank
By introducing a linkage alarm system of rotating parts and pressure sensors into the stamping mold of the lower cover of the fuel tank, the problem of uneven force on the forming base is solved, ensuring the forming quality of the fuel tank and the stability of the mold.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING KECHEN MACHINERY CO LTD
- Filing Date
- 2025-01-15
- Publication Date
- 2026-05-19
AI Technical Summary
Uneven force distribution caused by uneven stamping die on the forming base surface leads to bolt damage and base displacement, affecting the quality of the fuel tank.
A stamping die for a fuel tank bottom cover was designed, comprising a die base, a shaping block, a positioning groove, a positioning block, a drive block, a rotating component, a pressure sensor, and a warning light. The rotating component and pressure sensor in the detection groove monitor pressure changes and issue an alarm in time to prevent the shaping block from moving.
It effectively prevents the shaping block from moving, ensuring the stamping quality of the oil tank. Through the linkage of pressure sensor and warning light, it promptly reminds staff to perform maintenance and avoids bolt damage.
Smart Images

Figure CN224254014U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stamping die technology, specifically to a stamping die for a fuel tank lower cover. Background Technology
[0002] The fuel tank primarily stores gasoline, providing fuel for the vehicle while it is in motion, making it a crucial component. Different materials result in different manufacturing processes for fuel tanks. When metal fuel tanks are used, the main processing method is stamping. However, when using stamping dies, the irregular surface of the forming base leads to uneven stress during stamping. This causes the forming base to bear significant shear forces, and prolonged stamping can damage the bolts connecting the forming base and the die, causing the forming base to shift and affecting the quality of the finished fuel tank. Utility Model Content
[0003] The purpose of this utility model is to provide a stamping die for the lower cover of an oil tank to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a stamping die for a fuel tank lower cover, comprising a die base, a shaping block fixedly connected to the upper middle of the die base, two positioning grooves provided in the middle of the die base, the positioning grooves being located on both sides of the shaping block, positioning blocks fixedly connected to both sides of the shaping block, the positioning blocks being engaged in the positioning grooves, a detection groove provided at the upper end of the die base, a driving block fixedly connected to the side end of the shaping block, the driving block being engaged in the detection groove, a rotating component provided in the detection groove, and the middle of the detection groove... A rotating shaft is fixedly connected, and the rotating shaft is rotatably connected to the rotating component in the middle. A control screw is threadedly connected to the middle of the rotating component, and a snap-fit connector is fixedly connected to the top of the control screw. Extrusion heads are fixedly connected to both sides of the rotating component. A pressure sensor is fixedly connected to the inner wall of the detection groove, and the top of the extrusion head abuts against the pressure sensor. A positioning protrusion is fixedly connected to the side end of the rotating component, and a positioning elastic sheet is fixedly connected to the inner wall of the detection groove. A warning light is fixedly connected to the side end of the mold base, and the pressure sensor and the warning light are electrically connected.
[0005] Preferably, the side end of the driving block has an arc-shaped structure, and there is a gap between the side end of the driving block and the inner wall of the detection groove.
[0006] Preferably, the top of the drive block is provided with a snap-fit groove, the opening of the snap-fit groove is a horn-shaped structure, and the snap-fit connector is snapped into the snap-fit groove.
[0007] Preferably, the rotating component has a semi-circular structure, the interior of the rotating component is hollow, and both ends of the control screw pass through the rotating component.
[0008] Preferably, the positioning elastic sheet has an arc-shaped structure, and the side end of the positioning protrusion is provided with a positioning groove. The positioning groove and the rotating shaft are on the same vertical line, and the positioning elastic sheet and the positioning groove are engaged with each other.
[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: When installing the shaping block, the positioning block is first used to position and install the shaping block. When the shaping block moves, the shaping block can drive the rotating part to rotate through the driving block, thereby squeezing the pressure sensor. When the pressure value sensed by the pressure sensor exceeds the limit value, the shaping block moves and transmits the information to the alarm light. The alarm light reminds the staff to maintain the shaping block in time and ensure the quality of subsequent oil tank stamping. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the three-dimensional connection structure between the mold base and the shaping block.
[0011] Figure 2 This is a schematic diagram showing the connection between the drive block and the rotating component.
[0012] Figure 3 This is an enlarged view of point A.
[0013] In the diagram: 1. Mold base, 2. Shaping block, 3. Positioning groove, 4. Positioning block, 5. Warning light, 6. Detection groove, 7. Drive block, 8. Snap-fit groove, 9. Rotating component, 10. Rotating shaft, 11. Control screw, 12. Snap-fit connector, 13. Extrusion head, 14. Pressure sensor, 15. Positioning protrusion, 16. Positioning groove, 17. Positioning elastic sheet. Detailed Implementation
[0014] To enhance understanding of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described and introduced below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this utility model, not all embodiments, and are not intended to limit the embodiments in any way. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0015] Please see Figure 1-3This utility model provides a technical solution: a stamping die for a fuel tank lower cover, including a die base 1, a shaping block 2 fixedly connected to the upper middle of the die base 1, two positioning grooves 3 located on both sides of the shaping block 2, positioning blocks 4 fixedly connected to both sides of the shaping block 2, the positioning blocks 4 being engaged in the positioning grooves 3, a detection groove 6 located at the upper end of the die base 1, a driving block 7 fixedly connected to the side end of the shaping block 2, the driving block 7 being engaged in the detection groove 6, a rotating component 9 located in the detection groove 6, a rotating shaft 10 fixedly connected to the middle of the detection groove 6, the rotating shaft 10 and the rotating component 9 being rotatably connected in the middle, and a control screw 11 threadedly connected to the middle of the rotating component 9. A clamping connector 12 is fixedly connected to the top of the rotating part 9. Extrusion heads 13 are fixedly connected to both sides of the rotating part 9. A pressure sensor 14 is fixedly connected to the inner wall of the detection groove 6. The top of the extrusion head 13 abuts against the pressure sensor 14. A positioning protrusion 15 is fixedly connected to the side of the rotating part 9. A positioning elastic sheet 17 is fixedly connected to the inner wall of the detection groove 6. A warning light 5 is fixedly connected to the side of the mold base 1. The pressure sensor 14 and the warning light 5 are electrically connected. When the shaping block 2 moves, the rotating part 9 is driven to rotate, causing the extrusion head 13 to press against the pressure sensor 14. The pressure sensor 14 transmits a signal to the warning light 5, which illuminates to alert the staff to maintain the shaping block 2.
[0016] The side of the drive block 7 is an arc-shaped structure. There is a gap between the side of the drive block 7 and the inner wall of the detection groove 6. When the shaping block 2 moves, the drive block 7 has a moving space in the detection groove 6, which can drive the rotating part 9 to rotate.
[0017] The top of the drive block 7 is provided with a snap-fit groove 8. The opening of the snap-fit groove 8 is a funnel-shaped structure. The snap-fit connector 12 snaps into the snap-fit groove 8. The rotating part 9 is a semi-circular structure. The interior of the rotating part 9 is hollow. The two ends of the control screw 11 pass through the rotating part 9. When the drive block 7 is snapped into the middle of the detection groove 6, the adjusting screw 11 is rotated. The adjusting screw 11 drives the snap-fit connector 12 to move. The snap-fit connector 12 snaps into the snap-fit groove 8, connecting the rotating part 9 and the drive block 7 into a whole. When the drive block 7 moves, it can drive the rotating part 9 to rotate.
[0018] The positioning elastic piece 17 has an arc-shaped structure, and the side end of the positioning protrusion 15 is provided with a positioning groove 16. The positioning groove 16 and the rotating shaft 10 are on the same vertical line. The positioning elastic piece 17 and the positioning groove 16 are engaged with each other. The positioning elastic piece 17 positions and connects the rotating part 9, so that the extrusion head 13 can abut against the pressure sensor 14 without pressure, ensuring that the shaping block 2 is in the normal position. Although embodiments of the present invention have been shown and described, it should be emphasized that the above description is only an introduction and description of the usage of the embodiments of the present invention, and is not intended to limit the present invention in any way. For those skilled in the art, it will be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A stamping die for a fuel tank bottom cover, comprising a die base (1), characterized in that: A shaping block (2) is fixedly connected to the middle of the upper end of the mold base (1). Two positioning grooves (3) are provided in the middle of the mold base (1). The positioning grooves (3) are located on both sides of the shaping block (2). Positioning blocks (4) are fixedly connected to both sides of the shaping block (2). The positioning blocks (4) are snapped into the positioning grooves (3). A detection groove (6) is provided at the upper end of the mold base (1). A driving block (7) is fixedly connected to the side end of the shaping block (2). The driving block (7) is snapped into the detection groove (6). A rotating part (9) is provided in the detection groove (6). A rotating shaft (10) is fixedly connected in the middle of the detection groove (6). The rotating shaft (10) and the rotating part (9) are connected in the middle. The rotating part (9) is connected to a control screw (11) in the middle threaded connection. The top end of the control screw (11) is fixedly connected to a snap connector (12). Both sides of the rotating part (9) are fixedly connected to extrusion heads (13). The inner wall of the detection groove (6) is fixedly connected to a pressure sensor (14). The top end of the extrusion head (13) abuts against the pressure sensor (14). The side end of the rotating part (9) is fixedly connected to a positioning protrusion (15). The inner wall of the detection groove (6) is fixedly connected to a positioning elastic sheet (17). The side end of the mold base (1) is fixedly connected to a warning light (5). The pressure sensor (14) and the warning light (5) are electrically connected.
2. The stamping die for a fuel tank lower cover according to claim 1, characterized in that: The side end of the drive block (7) is an arc-shaped structure, and there is a gap between the side end of the drive block (7) and the inner wall of the detection groove (6).
3. The stamping die for a fuel tank lower cover according to claim 1, characterized in that: The top of the drive block (7) is provided with a snap-fit groove (8), the opening of the snap-fit groove (8) is a horn-shaped structure, and the snap-fit connector (12) is snapped into the snap-fit groove (8).
4. The stamping die for a fuel tank lower cover according to claim 1, characterized in that: The rotating component (9) has a semi-circular structure and is hollow inside. Both ends of the control screw (11) pass through the rotating component (9).
5. The stamping die for a fuel tank lower cover according to claim 1, characterized in that: The positioning elastic piece (17) has an arc-shaped structure, and the side end of the positioning protrusion (15) is provided with a positioning groove (16). The positioning groove (16) and the rotating shaft (10) are on the same vertical line, and the positioning elastic piece (17) and the positioning groove (16) are engaged with each other.