Aluminum alloy oil tank end cover stamping die
The design of the lifting frame, ejector pin, connecting frame, and locking mechanism solves the problems of automatic demolding and quick assembly/disassembly of aluminum alloy fuel tank end cap molds, improving production efficiency and ease of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JIANGYIN LIUPING MACHINERY CO LTD
- Filing Date
- 2026-03-03
- Publication Date
- 2026-04-21
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing aluminum alloy fuel tank end cap stamping mold needs to be manually removed after demolding, and the mold disassembly and assembly process is complicated, time-consuming, and affects the efficiency of use.
A stamping die for an aluminum alloy fuel tank end cap was designed. It adopts a lifting frame, ejector pin, connecting frame, adjustment mechanism and locking mechanism to realize automatic demolding and quick mold assembly and disassembly. Automated demolding and quick installation are achieved by hydraulic cylinder, motor-driven sliding frame and knob operation.
It enables rapid demolding of aluminum alloy fuel tank end caps and rapid assembly and disassembly of molds, improving production efficiency and ease of operation, and reducing manual intervention.
Smart Images

Figure CN121892589A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of stamping die technology, specifically to a stamping die for an aluminum alloy fuel tank end cap. Background Technology
[0002] Aluminum alloy fuel tanks are fuel storage devices made of aluminum alloy. They are widely used in the automotive, construction machinery, and other equipment manufacturing industries due to their lightweight and corrosion resistance. As a key sealing component of the fuel tank, the end cap's forming precision and production efficiency directly affect the overall performance of the tank. Currently, aluminum alloy fuel tank end caps are mostly processed using stamping technology, which features fast forming speed, low cost, and good consistency. Therefore, stamping dies have become the core equipment in end cap production. In existing aluminum alloy fuel tank end cap stamping dies, after stamping, the die is demolded by a demolding mechanism. After demolding, it still needs to be removed manually. Furthermore, the upper and lower dies are mostly fixed to the die base by multiple bolts. When the die needs to be replaced, auxiliary tools such as wrenches must be used to disassemble each bolt one by one. The disassembly and assembly process is time-consuming and complex, reducing the effectiveness of the device. Therefore, we propose an aluminum alloy fuel tank end cap stamping die. Summary of the Invention
[0003] To address the shortcomings of existing technologies, this invention provides a stamping die for aluminum alloy fuel tank end caps. This solves the problem that after stamping, the aluminum alloy fuel tank end cap stamping die needs to be demolded by a demolding mechanism, and after demolding, it still needs to be removed manually. Furthermore, the upper and lower dies are mostly fixed to the die base by multiple bolts. When the die needs to be replaced, it is necessary to use auxiliary tools such as wrenches to disassemble the bolts one by one. The disassembly and assembly process is time-consuming and complicated, which reduces the effectiveness of the device.
[0004] To achieve the above objectives, the present invention provides the following technical solution: A stamping die for an aluminum alloy fuel tank end cap includes a die frame, a lower die base fixedly connected to the top of the die frame, a lower die provided on the top of the lower die base, a lifting frame slidably connected to the inner wall of the lower die, a plurality of ejector pins fixedly connected to the top of the lifting frame, connecting frames symmetrically fixedly connected to both ends of the lifting frame, and an adjustment mechanism for moving the connecting frames on one side of the die frame. Hydraulic cylinders are symmetrically fixedly connected to the inner wall of the mold frame. An upper mold base is fixedly connected to the output end of the hydraulic cylinder. An upper mold is provided at the bottom of the upper mold base. Multiple mounting seats are fixedly connected to the top of the upper mold and the bottom of the lower mold. Locking mechanisms that cooperate with the mounting seats are provided inside the upper mold base and the lower mold base.
[0005] In a preferred embodiment, the adjustment mechanism includes a fixed frame, the inner wall of the mold frame is fixedly connected to the fixed frame, the inner wall of the fixed frame is slidably connected to a sliding frame, both sides of the sliding frame are bolted with support rods, one side of the support rod is fixedly connected to a protrusion, and the inside of the connecting frame is provided with a connecting groove that cooperates with the protrusion.
[0006] The technical effect of adopting the above-mentioned further solution is that the sliding frame drives the two sets of support rods to slide, so that the protrusion and the connecting groove cooperate to use, thereby squeezing and driving the connecting frame to move upward during the movement of the support rod.
[0007] In a preferred embodiment, a reciprocating lead screw is rotatably connected inside the fixed frame, the sliding frame is threadedly connected to the reciprocating lead screw, a motor is fixedly connected to one end of the fixed frame, and the output end of the motor is fixedly connected to the reciprocating lead screw.
[0008] The technical effect of adopting the above-mentioned further solution is that the motor drives the reciprocating lead screw to rotate, thereby causing the sliding frame to slide along the inner wall of the fixed frame.
[0009] In a preferred embodiment, the lower mold has symmetrically provided limit grooves inside, and the lifting frame is slidably connected to the limit grooves.
[0010] The technical effect of adopting the above-mentioned further solution is that the movement of the lifting frame can be limited by the setting of the limiting groove, so that the lifting frame slides along the limiting groove and prevents deviation.
[0011] In a preferred embodiment, guide pillars are symmetrically fixedly connected to both sides of the upper mold, and guide cylinders that cooperate with the guide pillars are symmetrically fixedly connected to both sides of the lower mold.
[0012] The technical effect of adopting the above-mentioned further solution is that the guide column and guide cylinder can play a guiding function during the stamping process.
[0013] In a preferred embodiment, a support frame is symmetrically fixedly connected to one side of the lower mold base, and a guide plate is fixedly connected to the top of the support frame.
[0014] The technical advantage of adopting the above-mentioned further solution is that the setting of the guide plate facilitates the discharge of finished products.
[0015] In a preferred embodiment, the locking mechanism includes a second sliding seat. The inner walls of the lower mold base and the upper mold base are symmetrically slidably connected to the second sliding seat. The inner walls of the lower mold base and the upper mold base are symmetrically fixedly connected to the limit rods. The outer side of the limit rod is slidably connected to a first sliding seat. A locking block is symmetrically fixedly connected to one side of the first sliding seat and one side of the second sliding seat. The mounting base has symmetrically opened mounting grooves inside for use with the locking blocks.
[0016] The technical effect of adopting the above-mentioned further solution is that the movement of the first sliding seat can be limited by the setting of the limiting rod, so that the first sliding seat slides along the limiting rod to prevent deviation. The first sliding seat and the second sliding seat drive the locking block to move, so that the locking block moves into the interior of the mounting groove, thereby locking the position of the mounting seat, which facilitates the quick installation and fixing of the lower mold or the upper mold.
[0017] In a preferred embodiment, both the interior of the lower mold base and the interior of the upper mold base are rotatably connected to a bidirectional lead screw, the second sliding seat is threadedly connected to the bidirectional lead screw, and a knob is fixedly connected to one end of the bidirectional lead screw.
[0018] The technical effect of adopting the above-mentioned further solution is that the knob drives the bidirectional lead screw to rotate, and the rotation of the bidirectional lead screw drives the second sliding seat to slide along the inner wall of the lower mold base.
[0019] In a preferred embodiment, a pressure rod is symmetrically fixedly connected to the outer side of the second sliding seat, and a symmetrical inclined groove is provided inside the first sliding seat to cooperate with the pressure rod.
[0020] The technical effect of adopting the above-mentioned further solution is that the second sliding seat drives the pressure rod to slide, so that it can cooperate with the inclined groove, thereby squeezing and driving the two sets of first sliding seats to slide during the movement of the second sliding seat.
[0021] In a preferred embodiment, the top of the lower mold base and the bottom of the upper mold base are provided with multiple placement slots that cooperate with the mounting base.
[0022] The technical advantage of adopting the above-mentioned further solution is that the multiple placement slots can be used in conjunction with the mounting base to facilitate the installation and fixing of the lower or upper mold.
[0023] This invention provides a stamping die for an aluminum alloy fuel tank end cap. Compared with the prior art, it has the following advantages: 1. This aluminum alloy fuel tank end cap stamping die, through the setting of a lifting frame, ejector pin, connecting frame, adjustment mechanism and guide plate, realizes the function of taking out the finished product from the die after the aluminum alloy fuel tank end cap is stamped. It can quickly lift, demold and discharge the stamped finished product without manual removal, thus enhancing the use effect of the device.
[0024] 2. This aluminum alloy fuel tank end cap stamping die, through the setting of a locking mechanism, placement groove, mounting base and mounting slot, realizes the function of quick assembly and disassembly of the lower die and the upper die. When assembling and disassembling the die, only the knob needs to be turned, without the need for auxiliary tools, which makes the work more efficient and convenient to operate. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the mold of the present invention; Figure 3 This is a schematic diagram of the structure of the fixing frame of the present invention; Figure 4 This is a schematic diagram of the connecting frame of the present invention; Figure 5 This is a schematic diagram of the structure when the ejector pin of the present invention is ejected; Figure 6 This is a schematic diagram of the structure of the mold of the present invention; Figure 7 This is a schematic diagram of the structure of the lower mold base of the present invention; Figure 8 This is a schematic diagram of the internal structure of the lower mold base of the present invention; Figure 9 This is a schematic diagram of the structure of the second sliding seat of the present invention.
[0026] Legend: 1. Mold frame; 101. Guide plate; 102. Lower mold base; 103. Upper mold base; 104. Hydraulic cylinder; 105. Placement slot; 106. Support frame; 107. Limiting rod; 2. Lower mold; 201. Upper mold; 202. Connecting frame; 203. Mounting base; 204. Lifting frame; 205. Ejector pin; 206. Guide cylinder; 207. Limiting groove; 208. Guide post; 209. Mounting groove; 3. Adjustment mechanism; 301. Fixed frame; 302. Connecting groove; 303. Motor; 304. Protrusion; 305. Support rod; 306. Sliding frame; 307. Reciprocating lead screw; 4. Locking mechanism; 401. Locking block; 402. First sliding seat; 403. Second sliding seat; 404. Two-way lead screw; 405. Inclined groove; 406. Pressure rod. Detailed Implementation
[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0028] Please see Figures 1 to 9 The present invention provides a technical solution: A stamping die for an aluminum alloy fuel tank end cap includes a die frame 1. A lower die base 102 is fixedly connected to the top of the die frame 1. A lower die 2 is provided on the top of the lower die base 102. A lifting frame 204 is slidably connected to the inner wall of the lower die 2. Multiple ejector pins 205 are fixedly connected to the top of the lifting frame 204. Connecting frames 202 are symmetrically fixedly connected to both ends of the lifting frame 204. An adjustment mechanism 3 for moving the connecting frame 202 is provided on one side of the die frame 1. Hydraulic cylinders 104 are symmetrically fixedly connected to the inner wall of the die frame 1. An upper die base 103 is fixedly connected to the output end of the hydraulic cylinder 104. An upper die 201 is provided at the bottom of the upper die base 103. Multiple mounting seats 203 are fixedly connected to the top of the upper die 201 and the bottom of the lower die 2. Locking mechanisms 4 that cooperate with the mounting seats 203 are provided inside the upper die base 103 and the lower die base 102.
[0029] In this solution, when stamping the aluminum alloy fuel tank end cap, the material is placed on the lower mold 2, and the hydraulic cylinder 104 is activated. The hydraulic cylinder 104 drives the upper mold 201 downward through the upper mold base 103 to perform the stamping operation. The connecting frame 202 can be moved by the setting of the adjusting mechanism 3. The connecting frame 202 drives the ejector pin 205 upward through the lifting frame 204, thereby pushing the finished product out of the lower mold 2 for easy demolding. The locking mechanism 4 can lock and fix the position of the mounting base 203, facilitating quick assembly and disassembly of the lower mold 2 or the upper mold 201.
[0030] like Figures 3 to 6As shown: In this scheme, the adjusting mechanism 3 includes a fixed frame 301. The fixed frame 301 is fixedly connected to the inner wall of the mold frame 1. A sliding frame 306 is slidably connected to the inner wall of the fixed frame 301. Support rods 305 are bolted to both sides of the sliding frame 306. A protrusion 304 is fixedly connected to one side of the support rod 305. A connecting groove 302 that mates with the protrusion 304 is opened inside the connecting frame 202. A reciprocating screw 307 is rotatably connected inside the fixed frame 301. The sliding frame 306 is threadedly connected to the reciprocating screw 307. A motor 303 is fixedly connected to one end of the fixed frame 301, and the output end of the motor 303 is fixedly connected to the reciprocating lead screw 307; the lower mold 2 has symmetrically opened limit grooves 207 inside, and the lifting frame 204 is slidably connected to the limit grooves 207; guide columns 208 are symmetrically fixedly connected to both sides of the upper mold 201, and guide cylinders 206 that cooperate with the guide columns 208 are symmetrically fixedly connected to both sides of the lower mold 2; a support frame 106 is symmetrically fixedly connected to one side of the lower mold base 102, and a guide plate 101 is fixedly connected to the top of the support frame 106.
[0031] In this scheme, after stamping is completed, the motor 303 is started. The motor 303 drives the reciprocating lead screw 307 to rotate, thereby causing the sliding frame 306 to slide along the inner wall of the fixed frame 301. The sliding frame 306 drives the two sets of support rods 305 to slide, so that the protrusion 304 and the connecting groove 302 cooperate. As the support rod 305 moves, it squeezes and drives the connecting frame 202 to move upward. The connecting frame 202 drives the ejector pin 205 to move upward through the lifting frame 204, thereby pushing the finished product out of the lower mold 2. When it continues to move, the sliding frame 306 will push the finished product to move, so that the finished product falls and is guided by the guide plate 101, which facilitates the discharge of the finished product.
[0032] like Figures 7 to 9As shown: In this scheme, the locking mechanism 4 includes a second sliding seat 403. The inner walls of the lower mold base 102 and the upper mold base 103 are symmetrically slidably connected to the second sliding seat 403. The inner walls of the lower mold base 102 and the upper mold base 103 are symmetrically fixedly connected to the limit rods 107. The outer side of the limit rods 107 is slidably connected to the first sliding seat 402. One side of the first sliding seat 402 and one side of the second sliding seat 403 are symmetrically fixedly connected to the locking blocks 401. The mounting base 203 has symmetrical openings inside that cooperate with the locking blocks 401. The mounting slot 209; the interior of the lower mold base 102 and the interior of the upper mold base 103 are rotatably connected to a two-way lead screw 404, the second sliding seat 403 is threadedly connected to the two-way lead screw 404, and a knob is fixedly connected to one end of the two-way lead screw 404; a pressure rod 406 is symmetrically fixedly connected to the outside of the second sliding seat 403, and the interior of the first sliding seat 402 is symmetrically provided with inclined grooves 405 that cooperate with the pressure rod 406; the top of the lower mold base 102 and the bottom of the upper mold base 103 are provided with multiple placement grooves 105 that cooperate with the mounting seat 203.
[0033] In this solution, when installing the lower mold 2 or the upper mold 201, the mounting base 203 is placed inside the placement groove 105. The knob at one end of the bidirectional lead screw 404 is rotated, thereby causing the bidirectional lead screw 404 to rotate. The rotation of the bidirectional lead screw 404 causes the two sets of second sliding seats 403 to slide along the inner wall of the lower mold base 102. The second sliding seats 403 cause the pressure rod 406 to slide, so that it can cooperate with the inclined groove 405. As the second sliding seats 403 move, they squeeze and cause the two sets of first sliding seats 402 to slide. The first sliding seats 402 and the second sliding seats 403 cause the locking block 401 to move, so that the locking block 401 moves into the interior of the mounting groove 209, thereby locking the position of the mounting base 203. This facilitates the quick installation and fixing of the lower mold 2 or the upper mold 201. When disassembling, simply rotate the knob in the opposite direction.
[0034] Working principle: In use, the device can be controlled by an external power supply and control equipment. When stamping aluminum alloy fuel tank end caps, the material is placed on the lower mold 2, and the hydraulic cylinder 104 is started. The hydraulic cylinder 104 drives the upper mold 201 downward through the upper mold base 103 to perform the stamping operation. After stamping, the motor 303 is started, which drives the reciprocating screw 307 to rotate, thereby causing the sliding frame 306 to slide along the inner wall of the fixed frame 301. The sliding frame 306 drives the two sets of support rods 305 to slide, so that the protrusion 304 and the connecting groove 302 cooperate. During the movement of the support rod 305, the connecting frame 202 is squeezed and driven upward. The connecting frame 202 drives the ejector pin 205 upward through the lifting frame 204, thereby pushing the finished product out of the lower mold 2. When moving further, the sliding frame 306 will push the finished product to move, so that the finished product falls and is guided by the guide plate 101, which facilitates the discharge of the finished product. The finished product can be quickly lifted, demolded, and discharged without manual removal. When installing the lower mold 2 or the upper mold 201, the mounting base 203 is placed inside the placement groove 105. The knob at one end of the bidirectional lead screw 404 is turned, causing the bidirectional lead screw 404 to rotate. The rotation of the bidirectional lead screw 404 causes the two sets of second sliding seats 403 to slide along the inner wall of the lower mold base 102. The second sliding seats 403 drive the pressure rod 406 to slide, making it cooperate with the inclined groove 405. As the second sliding seats 403 move, they squeeze and drive the two sets of first sliding seats 402 to slide. The first sliding seats 402 and the second sliding seats 403 drive the locking block 401 to move, causing the locking block 401 to move into the mounting groove 209, thereby locking the position of the mounting base 203. This facilitates the quick installation and fixation of the lower mold 2 or the upper mold 201. When disassembling, simply turn the knob in the opposite direction. No auxiliary tools are needed during the operation, making the work more efficient and convenient.
[0035] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A stamping die for an aluminum alloy fuel tank end cap, comprising a die holder (1), characterized in that: The mold frame (1) is fixedly connected to the top of the lower mold base (102), the lower mold base (102) is provided with the lower mold (2) on the top, the inner wall of the lower mold (2) is slidably connected to the lifting frame (204), the top of the lifting frame (204) is fixedly connected to a plurality of ejector pins (205), the two ends of the lifting frame (204) are symmetrically fixedly connected to the connecting frame (202), and one side of the mold frame (1) is provided with an adjustment mechanism (3) for driving the connecting frame (202) to move. Hydraulic cylinders (104) are symmetrically fixedly connected to the inner wall of the mold frame (1). The output end of the hydraulic cylinder (104) is fixedly connected to the upper mold base (103). The bottom of the upper mold base (103) is provided with an upper mold (201). The top of the upper mold (201) and the bottom of the lower mold (2) are both fixedly connected with multiple mounting seats (203). The interior of the upper mold base (103) and the interior of the lower mold base (102) are both provided with locking mechanisms (4) that cooperate with the mounting seats (203).
2. The aluminum alloy fuel tank end cap stamping die according to claim 1, characterized in that: The adjustment mechanism (3) includes a fixed frame (301), the inner wall of the mold frame (1) is fixedly connected to the fixed frame (301), the inner wall of the fixed frame (301) is slidably connected to the sliding frame (306), the two sides of the sliding frame (306) are bolted with support rods (305), one side of the support rod (305) is fixedly connected to a protrusion (304), and the inside of the connecting frame (202) is provided with a connecting groove (302) that cooperates with the protrusion (304).
3. The aluminum alloy fuel tank end cap stamping die according to claim 2, characterized in that: The fixed frame (301) is rotatably connected to a reciprocating lead screw (307), the sliding frame (306) is threadedly connected to the reciprocating lead screw (307), and a motor (303) is fixedly connected to one end of the fixed frame (301). The output end of the motor (303) is fixedly connected to the reciprocating lead screw (307).
4. The aluminum alloy fuel tank end cap stamping die according to claim 1, characterized in that: The lower mold (2) has symmetrically provided limiting grooves (207) inside, and the lifting frame (204) is slidably connected to the limiting grooves (207).
5. The aluminum alloy fuel tank end cap stamping die according to claim 1, characterized in that: The upper mold (201) is symmetrically fixedly connected with guide pillars (208) on both sides, and the lower mold (2) is symmetrically fixedly connected with guide cylinders (206) that cooperate with the guide pillars (208) on both sides.
6. The aluminum alloy fuel tank end cap stamping die according to claim 1, characterized in that: A support frame (106) is symmetrically fixedly connected to one side of the lower mold base (102), and a guide plate (101) is fixedly connected to the top of the support frame (106).
7. The aluminum alloy fuel tank end cap stamping die according to claim 1, characterized in that: The locking mechanism (4) includes a second sliding seat (403). The inner walls of the lower mold base (102) and the upper mold base (103) are symmetrically slidably connected to the second sliding seat (403). The inner walls of the lower mold base (102) and the upper mold base (103) are symmetrically fixedly connected to the limit rod (107). The outer side of the limit rod (107) is slidably connected to the first sliding seat (402). The first sliding seat (402) and the second sliding seat (403) are symmetrically fixedly connected to the locking block (401). The mounting base (203) is symmetrically provided with mounting grooves (209) that cooperate with the locking block (401).
8. The aluminum alloy fuel tank end cap stamping die according to claim 7, characterized in that: Both the lower mold base (102) and the upper mold base (103) are rotatably connected to a bidirectional lead screw (404). The second sliding seat (403) is threadedly connected to the bidirectional lead screw (404), and a knob is fixedly connected to one end of the bidirectional lead screw (404).
9. The aluminum alloy fuel tank end cap stamping die according to claim 7, characterized in that: The second sliding seat (403) is symmetrically fixedly connected to a pressure rod (406) on its outer side, and the first sliding seat (402) is symmetrically provided with inclined grooves (405) that cooperate with the pressure rod (406) inside.
10. The stamping die for an aluminum alloy fuel tank end cap according to claim 1, characterized in that: The top of the lower mold base (102) and the bottom of the upper mold base (103) are provided with multiple placement slots (105) that cooperate with the mounting base (203).