A forging device for a U-shaped titanium alloy mobile phone frame

Through the forging equipment of U-shaped titanium alloy mobile phone frame, the combination of curved arm connecting rod mechanism and punching needle is used to achieve efficient production of U-shaped titanium alloy mobile phone frame, solving the problems of cumbersome processing processes and high cost, improving production efficiency and reducing costs.

CN117340182BActive Publication Date: 2025-07-04SUZHOU YUEHAI STRETCHING MACHINERY
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Patent Information

Application Number
CN202311268374.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-09-28
Publication Date
2025-07-04
Estimated Expiration
2043-09-28

AI Technical Summary

Technical Problem

The prior art when producing U-shaped titanium alloy mobile phone frames, the processing process is complicated and the cost is high, making it difficult to optimize the processing process.

Method used

The forging equipment using U-shaped titanium alloy mobile phone frame is used to step forging and pressing with the driving force-time curve provided by the curved arm connecting rod mechanism, and stamping the U-shaped end surface in combination with the first and second punches to form a high-quality U-shaped titanium alloy mobile phone frame finished product.

Benefits of technology

Through step-by-step forging and stamping processes, the production process is optimized, production efficiency is improved, production costs are reduced, and product quality is ensured.

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Abstract

The present invention provides a forging device for a U-shaped titanium alloy mobile phone frame, comprising: a frame, a crank connecting rod mechanism, a movable mold, a fixed mold, an ejection mechanism, a first punch and a second punch. The fixed mold is fixed on the frame and arranged corresponding to the fixed mold. The crank connecting rod mechanism is fixed on the frame and arranged on the side of the movable mold away from the fixed mold, and is used to drive the movable mold to move away from or close to the fixed mold along a first direction. The ejection mechanism is arranged on the side of the fixed mold away from the movable mold, the fixed end of the ejection mechanism is fixed on the frame, one ends of the first punch and the second punch are respectively connected to the ejection end of the ejection mechanism, and the other ends are respectively slidably penetrated through both sides of the fixed mold along the first direction. The first punch and the second punch are pushed against the movable mold after the movable mold and the fixed mold are closed, and cooperate with the movable mold and the fixed mold to form a cavity. The first punch and the second punch first rise and then eject to demold when the movable mold and the fixed mold are separated. The present invention not only optimizes the production process of the U-shaped titanium alloy mobile phone frame, but also reduces the production cost.
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Description

Technical Field

[0001] The invention belongs to the technical field of titanium alloy forging processing, in particular to a forging device for a U-shaped titanium alloy mobile phone frame. Background Art

[0002] At present, titanium alloy is gradually being used in various new mobile phones because it has excellent properties such as lighter, more corrosion-resistant, more scratch-resistant and higher strength compared to stainless steel. It is convenient to reduce the weight of the mobile phone, ensure the quality of the mobile phone in the long term, and increase the durability of the mobile phone.

[0003] However, when producing titanium alloy mobile phone frames, the upper and lower frames of titanium alloy mobile phones are generally U-shaped as a whole, and partially have complex curved surfaces. In addition, the processing performance of titanium alloy materials is poor, which leads to complicated cutting processes and high processing costs. Therefore, how to optimize the processing technology of U-shaped titanium alloy mobile phone frames and reduce production costs has become a problem that needs to be studied. Summary of the invention

[0004] In view of the above technical problems, the present invention provides a forging device for a U-shaped titanium alloy mobile phone frame to solve the problem of how to optimize the processing technology of the U-shaped titanium alloy mobile phone frame and reduce the production cost.

[0005] The present invention provides a forging device for a U-shaped titanium alloy mobile phone frame, comprising:

[0006] A forging device for a U-shaped titanium alloy mobile phone frame comprises: a frame, a crank arm connecting rod mechanism, a movable die, a fixed die, an ejection mechanism, a first punch needle and a second punch needle, the fixed die is fixed on the frame, the movable die is arranged corresponding to the fixed die, the crank arm connecting rod mechanism is fixed on the frame, and the crank arm connecting rod mechanism is arranged on a side of the movable die away from the fixed die, and is used to drive the movable die away from or close to the fixed die along a first direction, the ejection mechanism is arranged on a side of the fixed die away from the movable die, the fixed end of the ejection mechanism is fixed on the frame, the ejection end of the ejection mechanism is lifted along the first direction, one end of the first punch needle and one end of the second punch needle are respectively connected to the ejection end of the ejection mechanism, and the other end of the first punch needle The other end of the first punch and the second punch can be slidably arranged on both sides of the fixed mold along the first direction respectively. The first punch and the second punch are pushed toward the movable mold after the movable mold and the fixed mold are closed, and are used to cooperate with the movable mold and the fixed mold to form a U-shaped titanium alloy mobile phone frame cavity. When the titanium alloy bar placed in the movable mold contacts the fixed mold, the driving force of the crank arm connecting rod mechanism begins to multiply rapidly to drive the movable mold to cooperate with the fixed mold to forge a U-shaped titanium alloy mobile phone frame semi-finished product. When the movable mold and the fixed mold are closed, the driving force of the crank arm connecting rod mechanism remains constant. At this time, the first punch and the second punch cooperate with the movable mold and the fixed mold under the drive of the ejection mechanism to punch out a U-shaped titanium alloy mobile phone frame finished product.

[0007] Optionally, the frame includes a base, a first platen, a second platen, and guide columns. The guide columns pass through the second platen and the first platen in sequence along a first direction and are fixed on the base. The moving mold is fixed on one side of the first platen close to the second platen, and the fixed mold is fixed on one side of the second platen close to the first platen. One end of the crank-link mechanism is hinged on the base, and the other end of the crank-link mechanism is hinged on the first platen, and is used to drive the first platen to move away from or close to the fixed mold along the guide columns. The fixed end of the ejection mechanism is fixed on the second platen.

[0008] Preferably, the forging equipment further includes a main oil cylinder, the main oil cylinder is fixed on the base, the crank-link mechanism includes a connecting seat, a straight connecting rod, and an L-shaped connecting rod. The bottom of the connecting seat is connected to the piston rod of the main oil cylinder. One end of the straight connecting rod is hinged on the first platen, the other end of the straight connecting rod is hinged on the corner end of the L-shaped connecting rod, the long end of the L-shaped connecting rod is hinged on the base, and the short end of the L-shaped connecting rod is hinged on the side of the connecting seat.

[0009] Preferably, the straight connecting rod and the L-shaped connecting rod form a pair of force-increasing components, and there are multiple pairs of force-increasing components, which are evenly distributed on the side of the connecting seat.

[0010] Preferably, when the long end of the L-shaped connecting rod and the straight connecting rod are in a straight line, the moving mold and the fixed mold are closed and enter the self-locking pressure-holding state.

[0011] Optionally, the ejection mechanism includes a first ejection oil cylinder and a second ejection oil cylinder. The piston rod of the first ejection oil cylinder is connected to a first ejector pin, and the piston rod of the second ejection oil cylinder is connected to a second ejector pin.

[0012] Preferably, the piston rod of the first ejection oil cylinder is detachably clamped to the first ejector pin, and the piston rod of the second ejection oil cylinder is detachably clamped to the second ejector pin.

[0013] Preferably, the ejection mechanism includes a stamping limiter, and the stamping limiter is arranged on the side of the fixed mold away from the moving mold, and is used to limit the maximum ejection length of the first ejector pin and the maximum ejection length of the second ejector pin.

[0014] Preferably, a rectangular first limiting through hole is formed on the piston rod of the first ejection oil cylinder, and a rectangular second limiting through hole is formed on the piston rod of the second ejection oil cylinder. The stamping limiter is a cuboid strip, and the stamping limiter is fixed on the frame. The stamping limiter passes through the first limiting through hole and the second limiting through hole along a second direction. The difference between the hole height of the first limiting through hole in the first direction and the thickness of the stamping limiter in the first direction is equal to the maximum ejection length of the first ejector pin, and the difference between the hole height of the second limiting through hole in the first direction and the thickness of the stamping limiter in the first direction is equal to the maximum ejection length of the second ejector pin. The second direction is perpendicular to the first direction.

[0015] Optionally, when the U-shaped titanium alloy mobile phone frame finished product is stamping formed, the moving die starts to move away from the fixed die under the drive of the crank and connecting rod mechanism. At this time, the first punch and the second punch first rise under the drive of the ejection mechanism and then push towards the U-shaped titanium alloy mobile phone frame finished product for material removal.

[0016] Compared with the prior art, the forging equipment for the U-shaped titanium alloy mobile phone frame of the present invention can perform step-by-step forging. First, the force-time curve of the driving force provided by the crank and connecting rod mechanism basically conforms to the force-time curve of the forging force required by the titanium alloy forging, realizing the preliminary forging of the forging. Then, in order to ensure that both ends of the U-shaped titanium alloy mobile phone frame are flush, punches are arranged on both sides for stamping. Finally, a better-quality U-shaped titanium alloy mobile phone frame finished product can be forged only by one forging equipment, greatly optimizing the production process of the U-shaped titanium alloy mobile phone frame, improving the production efficiency, and reducing the production cost. Brief Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the forging equipment for the U-shaped titanium alloy mobile phone frame according to an embodiment of the present invention;

[0018] Figure 2 It is a schematic structural diagram of the mold of the forging equipment for the U-shaped titanium alloy mobile phone frame according to an embodiment of the present invention before mold closing;

[0019] Figure 3 It is a schematic structural diagram of the mold of the forging equipment for the U-shaped titanium alloy mobile phone frame according to an embodiment of the present invention before pressing down after mold closing;

[0020] Figure 4 It is a schematic structural diagram of the mold of the forging equipment for the U-shaped titanium alloy mobile phone frame according to an embodiment of the present invention after pressing down. Detailed Description of the Embodiments

[0021] To further understand the purpose, structure, features, and functions of the present invention, the following is a detailed description in conjunction with the embodiments.

[0022] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and optimizing the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0023] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown in the figure, the present invention provides a forging device 100 for a U-shaped titanium alloy mobile phone frame, including: a frame 1, a crank connecting rod mechanism 2, a moving die 3, a fixed die 4, an ejection mechanism 5, a first punch 6 and a second punch 7.

[0024] The fixed die 4 is fixed on the frame 1.

[0025] The moving die 3 is arranged corresponding to the fixed die 4.

[0026] The crank connecting rod mechanism 2 is fixed on the frame 1, and the crank connecting rod mechanism 2 is arranged on the side of the moving die 3 away from the fixed die 4, and is used to drive the moving die 3 to move away from or close to the fixed die 4 along the first direction X.

[0027] The ejection mechanism 5 is arranged on the side of the fixed die 4 away from the moving die 3. The fixed end of the ejection mechanism 5 is fixed on the frame 1, and the ejection end of the ejection mechanism 5 jacks up along the first direction X.

[0028] One end of the first punch 6 and one end of the second punch 7 are respectively connected to the ejection end of the ejection mechanism 5. The other ends of the first punch 6 and the second punch 7 are slidably arranged through both sides of the fixed die 4 along the first direction X respectively. The first punch 6 and the second punch 7 are pushed against the moving die 3 after the moving die 3 and the fixed die 4 are closed, and are used to cooperate with the moving die 3 and the fixed die 4 to jointly form the cavity of the U-shaped titanium alloy mobile phone frame. The first punch 6 and the second punch 7 first rise and then are pushed against the two U-shaped ends on both sides of the U-shaped titanium alloy mobile phone frame for demolding when the moving die 3 and the fixed die 4 are separated. Since the titanium alloy forging needs to be forged into a U shape, the natural flow of the material often cannot be leveled during forging, and the two ends are not full, resulting in the uneven U-shaped end face of the U-shaped titanium alloy mobile phone frame after forging. And the punches arranged on both sides can just press the two U-shaped end faces flat. That is, the titanium alloy bar is forged into a U-shaped titanium alloy mobile phone frame in two steps to ensure the product quality.

[0029] Among them, when the titanium alloy bar stock 101 placed in the moving die 3 contacts the fixed die 4, the driving force of the crank and connecting rod mechanism 2 begins to multiply rapidly to drive the moving die to cooperate with the fixed die 4 to forge a semi-finished U-shaped titanium alloy mobile phone frame 102. When the moving die 3 and the fixed die 4 are completely closed, the driving force of the crank and connecting rod mechanism 2 remains constant. When the driving force of the crank and connecting rod mechanism 2 remains constant, the first punch 6 and the second punch 7 cooperate with the moving die 3 and the fixed die 4 under the drive of the ejection mechanism 5 to punch out the finished U-shaped titanium alloy mobile phone frame 103. Particularly, when the finished U-shaped titanium alloy mobile phone frame 103 is stamped and formed, the moving die 3 begins to move away from the fixed die 4 under the drive of the crank and connecting rod mechanism 2. At this time, the first punch 6 and the second punch 7 first rise and then push against the finished U-shaped titanium alloy mobile phone frame 103 to strip the material under the drive of the ejection mechanism 5. Since the power required for forging with a conventional hydraulic press is too large and it often runs slowly, the titanium alloy forgings have already cooled during this period and cannot be forged, and it is difficult for the quick connecting rod mechanism of the conventional hydraulic press to achieve pressure holding. The force-time curve of the driving force provided by the crank and connecting rod mechanism is just close to the force-time curve of the forging force required by the titanium alloy forgings, that is, the driving force of the crank and connecting rod mechanism can increase slowly before the titanium alloy forging in the moving die touches the fixed die, and the driving force of the crank and connecting rod mechanism begins to rise rapidly after touching the fixed die, performing rapid multiple force multiplication, and after the force multiplication is completed, the crank and connecting rod mechanism can also self-lock to keep the driving force unchanged. These characteristics just meet the forging force requirements of the titanium alloy forgings. By cleverly utilizing the driving force characteristics of the crank and connecting rod mechanism in this way, small power equipment can also meet the large power forging requirements of titanium alloy forgings, and the operation cycle is fast and the energy consumption is low.

[0030] Optionally, the frame 1 includes a machine base 11, a first platen 12, a second platen 13 and guide columns 14. The guide columns 14 sequentially pass through the second platen 13 and the first platen 12 along the first direction X and are fixed on the machine base 11. The moving die 3 is fixed on one side of the first platen 12 close to the second platen 13, and the fixed die 4 is fixed on one side of the second platen 13 close to the first platen 12. One end of the crank and connecting rod mechanism 2 is hinged on the machine base 11, and the other end of the crank and connecting rod mechanism 2 is hinged on the first platen 12, and is used to drive the first platen 12 to move away from or close to the fixed die 4 along the guide columns 14. The fixed end of the ejection mechanism 5 is fixed on the second platen 13. Particularly, there are 4 guide columns 14, which are arranged at the four corners.

[0031] Preferably, the forging equipment 100 further includes a main oil cylinder 8. The main oil cylinder 8 is fixed on the machine base 11. The crank and connecting rod mechanism 2 includes a connecting seat 21, a straight connecting rod 22 and an L-shaped connecting rod 23. The bottom of the connecting seat 21 is connected to the piston rod of the main oil cylinder 8. One end of the straight connecting rod 22 is hinged on the first platen 12, the other end of the straight connecting rod 22 is hinged on the corner end of the L-shaped connecting rod 23, the long end of the L-shaped connecting rod 23 is hinged on the machine base 11, and the short end of the L-shaped connecting rod 23 is hinged on the side of the connecting seat 21.

[0032] Preferably, the straight connecting rod 22 and the L-shaped connecting rod 23 form a pair of force-increasing components. There are multiple pairs of force-increasing components, which are evenly distributed on the side of the connecting seat 21. Such a setting can achieve multiple force-increasing more quickly and better, and better realize the effect of small power and large drive.

[0033] Preferably, when the long end of the L-shaped connecting rod 23 and the straight connecting rod 22 are in a straight line, the moving die 3 and the fixed die 4 complete the mold closing and enter the self-locking state. Such a structure is convenient for realizing power-free mold locking, saving energy consumption and cost.

[0034] Optionally, the ejection mechanism 5 includes a first ejection oil cylinder 51 and a second ejection oil cylinder 52. The piston rod of the first ejection oil cylinder 51 is connected to the first punching pin 6, and the piston rod of the second ejection oil cylinder 52 is connected to the second punching pin 7. Since the natural flow materials on both U-shaped sides may not be at the same height after mold closing, the forces on the two punching pins during stamping will also be different. If only one oil cylinder is used, the forces on both sides of the piston rod are uneven, and it is easy to tilt and be damaged. After such independent setting, the downward pressure of the two punching pins can be independently adaptive and the stamping is in place.

[0035] Preferably, the piston rod of the first ejection oil cylinder 51 is detachably clamped to the first punching pin 6, and the piston rod of the second ejection oil cylinder 52 is detachably clamped to the second punching pin 7. Such a setting is convenient for the replacement and maintenance of the two punching pins.

[0036] Preferably, the ejection mechanism 5 includes a stamping limiter 53. The stamping limiter 53 is arranged on the side of the fixed die 4 away from the moving die 3, and is used to limit the maximum ejection length of the first punching pin 6 and the maximum ejection length of the second punching pin 7. Such a setting can prevent the heights of the two U-shaped end faces from being less than the design value, which is convenient for trimming.

[0037] Preferably, a rectangular first limiting through hole 511 is formed on the piston rod of the first ejection oil cylinder 51, and a rectangular second limiting through hole 521 is formed on the piston rod of the second ejection oil cylinder 52. The stamping limiter 53 is a cuboid strip. The stamping limiter 53 is fixed on the frame 1. The stamping limiter 53 passes through the first limiting through hole 511 and the second limiting through hole 521 along the second direction Y. The difference between the hole height of the second limiting through hole 521 in the first direction X and the thickness of the stamping limiter 53 in the first direction X is equal to the maximum ejection length of the first punching pin 6, and the difference between the hole height of the second limiting through hole 521 in the first direction X and the thickness of the stamping limiter 53 in the first direction X is equal to the maximum ejection length of the second punching pin 7. The second direction Y is perpendicular to the first direction X. Such a setting has a clever structure, convenient and accurate limiting.

[0038] Optionally, a material groove 31 is formed on the side of the moving die 3 close to the fixed die 4, and is used to place the titanium alloy bar 101 above the cavity of the moving die 31. Such a setting is convenient for placing the titanium alloy bar and convenient for mold closing and forging.

[0039] Operating principle of the forging equipment 100 for the U-shaped titanium alloy mobile phone frame according to an embodiment of the present invention:

[0040] First, heat the titanium alloy bar 101 and place it in the moving die 3. The moving die 3 closes towards the fixed die 4 on the frame 1 under the action of the crank and connecting rod mechanism 2. During this period, the driving force provided by the crank and connecting rod mechanism 2 starts to increase rapidly when the titanium alloy bar 101 contacts the fixed die 4, and the forging of the titanium alloy bar 101 is carried out. After the moving die 3 and the fixed die 4 are in place for clamping, the self-locking function of the crank and connecting rod mechanism 2 is used to continue the pressure holding, so as to realize sufficient material flow to form the semi-finished product 102 of the U-shaped titanium alloy mobile phone frame. During the pressure holding period, the ejector mechanism 5 drives the first punch 6 and the second punch 7 to press down to flatten the two U-shaped end faces of the semi-finished product 102 of the U-shaped titanium alloy mobile phone frame, forming the finished product 103 of the U-shaped titanium alloy mobile phone frame. In addition, the moving die 3 starts to move downward away from the fixed die 4 under the action of the crank and connecting rod mechanism 2 for die separation. At this time, the first punch 6 and the second punch 7 first rise and then eject under the action of the ejector mechanism 5 to carry out the stripping of the finished product 103 of the U-shaped titanium alloy mobile phone frame.

[0041] The forging equipment for the U-shaped titanium alloy mobile phone frame of the present invention can carry out step-by-step forging. First, the force-time curve of the driving force provided by the crank and connecting rod mechanism basically conforms to the force-time curve of the forging force required for the titanium alloy forging, so as to realize the preliminary forging of the forging. Then, in order to ensure that the two ends of the U-shaped titanium alloy mobile phone frame are flush, punches are arranged on both sides for stamping. Finally, only one forging equipment can forge the finished product of the U-shaped titanium alloy mobile phone frame with better quality, greatly optimizing the production process of the U-shaped titanium alloy mobile phone frame, improving the production efficiency and reducing the production cost.

[0042] The present invention has been described by the above related embodiments. However, the above embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, all changes and modifications made without departing from the spirit and scope of the present invention fall within the scope of the patent protection of the present invention.

Claims

1. A forging device for a U-shaped titanium alloy mobile phone frame, characterized in that, Including: A frame, a crank and connecting rod mechanism, a moving die, a fixed die, an ejection mechanism, a first punch pin and a second punch pin; The fixed die is fixed on the frame; The moving die is arranged corresponding to the fixed die; The crank and connecting rod mechanism is fixed on the frame, and the crank and connecting rod mechanism is arranged on the side of the moving die far from the fixed die, and is used to drive the moving die to move away from or close to the fixed die along a first direction; The ejection mechanism is arranged on the side of the fixed die far from the moving die, the fixed end of the ejection mechanism is fixed on the frame, and the ejection end of the ejection mechanism jacks up along the first direction; One end of the first punch pin and one end of the second punch pin are respectively connected to the ejection end of the ejection mechanism, and the other ends of the first punch pin and the second punch pin are respectively slidably arranged through both sides of the fixed die along the first direction. The first punch pin and the second punch pin are pushed against the moving die after the moving die and the fixed die are closed, and are used to cooperate with the moving die and the fixed die to jointly form a cavity of a U-shaped titanium alloy mobile phone frame; Wherein, when the titanium alloy bar placed in the moving die contacts the fixed die, the driving force of the crank and connecting rod mechanism starts to increase rapidly in multiples to drive the moving die to cooperate with the fixed die to forge a semi-finished product of a U-shaped titanium alloy mobile phone frame. When the moving die and the fixed die are closed, the driving force of the crank and connecting rod mechanism remains constant. At this time, the first punch pin and the second punch pin cooperate with the moving die and the fixed die under the drive of the ejection mechanism to punch out a finished product of a U-shaped titanium alloy mobile phone frame.

2. The forging equipment for the U-shaped titanium alloy mobile phone frame according to claim 1, characterized in that, The frame includes a machine base, a first platen, a second platen and guide columns. The guide columns sequentially pass through the second platen and the first platen along the first direction and are then fixed on the machine base. The moving die is fixed on the side of the first platen close to the second platen, the fixed die is fixed on the side of the second platen close to the first platen, one end of the crank and connecting rod mechanism is hinged on the machine base, and the other end of the crank and connecting rod mechanism is hinged on the first platen, and is used to drive the first platen to move away from or close to the fixed die along the guide columns. The fixed end of the ejection mechanism is fixed on the second platen.

3. The forging equipment of the U-shaped titanium alloy mobile phone frame according to claim 2, characterized in that, It further includes a main oil cylinder. The main oil cylinder is fixed on the machine base. The crank and connecting rod mechanism includes a connecting seat, a straight connecting rod and an L-shaped connecting rod. The bottom of the connecting seat is connected to the piston rod of the main oil cylinder. One end of the straight connecting rod is hinged on the first platen, the other end of the straight connecting rod is hinged on the corner end of the L-shaped connecting rod, the long end of the L-shaped connecting rod is hinged on the machine base, and the short end of the L-shaped connecting rod is hinged on the side of the connecting seat.

4. The forging equipment for the U-shaped titanium alloy mobile phone frame according to claim 3, characterized in that, The straight connecting rod and the L-shaped connecting rod form a pair of force-increasing components. There are multiple pairs of such force-increasing components, which are evenly distributed on the side of the connecting seat.

5. The forging equipment of the U-shaped titanium alloy mobile phone frame according to claim 3, characterized in that, When the long end of the L-shaped connecting rod and the straight connecting rod are in a straight line, the moving die and the fixed die are closed and enter a self-locking state.

6. The forging equipment for the U-shaped titanium alloy mobile phone frame according to claim 1, characterized in that, The ejection mechanism includes a first ejection oil cylinder and a second ejection oil cylinder. The piston rod of the first ejection oil cylinder is connected to the first punch pin, and the piston rod of the second ejection oil cylinder is connected to the second punch pin.

7. The forging equipment for the U-shaped titanium alloy mobile phone frame according to claim 6, characterized in that, The piston rod of the first ejection oil cylinder is detachably clamped to the first punch pin, and the piston rod of the second ejection oil cylinder is detachably clamped to the second punch pin.

8. The forging equipment for the U-shaped titanium alloy mobile phone frame according to claim 6, characterized in that The ejection mechanism includes a stamping stopper which is arranged on one side of the fixed mold away from the moving mold and is used to limit the maximum ejection length of the first punching pin and the maximum ejection length of the second punching pin.

9. The forging equipment for the U-shaped titanium alloy mobile phone frame according to claim 8, characterized in that, A rectangular first limiting through hole is formed in the piston rod of the first ejection oil cylinder, and a rectangular second limiting through hole is formed in the piston rod of the second ejection oil cylinder. The stamping stopper is a cuboid strip, which is fixed on the frame. The stamping stopper passes through the first limiting through hole and the second limiting through hole along the second direction. The difference between the hole height of the first limiting through hole in the first direction and the thickness of the stamping stopper in the first direction is equal to the maximum ejection length of the first punching pin, and the difference between the hole height of the second limiting through hole in the first direction and the thickness of the stamping stopper in the first direction is equal to the maximum ejection length of the second punching pin. The second direction is perpendicular to the first direction.

10. The forging equipment for the U-shaped titanium alloy mobile phone frame according to claim 1, characterized in that, When the U-shaped titanium alloy mobile phone frame finished product is stamped and formed, the moving mold starts to move away from the fixed mold under the drive of the crank and connecting rod mechanism. At this time, the first punching pin and the second punching pin first rise and then eject towards the U-shaped titanium alloy mobile phone frame finished product for material removal under the drive of the ejection mechanism.

Citation Information

Patent Citations

  • Cell phone case's stamping die

    CN207681311U

  • The Precision calibration jig horizontal case for mobile phone devices

    KR101551200B1