A stamping device for mobile phone middle frame production

Abstract

The utility model discloses a stamping device for mobile phone middle frame production relates to mobile phone middle frame production field, including shock pad, and shock pad includes fixed base, and the top of fixed base is provided with hydraulic connecting rod anti -overturning subassembly, and the top of hydraulic connecting rod anti -overturning subassembly is provided with workstation, and the top of workstation is provided with positioning mechanism, and positioning mechanism includes locating frame, and four sliding frames are slidably connected on locating frame, and distance adjustment subassembly is provided on sliding frame, and positioning drive subassembly is provided in locating frame, and fixed base rear side is provided with stamping mechanism, and stamping mechanism includes stamping support, and eccentric stamping subassembly is provided in the top of stamping support. Beneficial effect lies in: through the setting of shock pad, isolate most harmful vibration, thereby keep fuselage stable, and through the setting of positioning mechanism, position metal sheet before stamping, guarantee positioning accuracy, so under the condition of isolating harmful vibration and improving positioning accuracy, can improve the stamping accuracy.

Description

Technical Field

[0001] This utility model relates to the field of mobile phone mid-frame production, and in particular to a stamping device for mobile phone mid-frame production. Background Technology

[0002] The materials used for mobile phone frames include aluminum alloy, stainless steel, steel-aluminum composite materials, and titanium alloy, but the vast majority of mobile phone frames are made of aluminum alloy.

[0003] The stamping production of the mobile phone mid-frame is a key link in consumer electronics manufacturing, involving multiple technical dimensions such as material selection, mold design, forming process and surface treatment. The stamping process applies pressure to the metal sheet through the mold, causing it to undergo plastic deformation to form the prototype of the mid-frame. It is characterized by high efficiency, low cost and large-scale production.

[0004] For example, patent document CN222568932U discloses a stamping device for producing a mobile phone mid-frame, including a base plate, a stamping mounting platform fixedly connected to the top of the base plate, a stamping assembly fixedly connected to the top of the stamping mounting platform, a cooling component for cooling the stamping assembly on the stamping mounting platform, and a stamping bottom mold fixedly connected to the top of the base plate. This utility model, by setting up a circulating water tank, an inlet pipe, a drain pipe, a cooling pipe, and a solenoid valve, circulates the water in the circulating water tank and the cooling pipe. The water can carry away the heat generated by the stamping assembly, preventing the stamping assembly from overheating. When the water temperature in the circulating water tank gradually rises, the stamping operation is stopped, the solenoid valve on the outside of the drain pipe is opened to drain the water in the circulating water tank, and then the inlet pipe is connected to an external water source, and the solenoid valve on the outside of the inlet pipe is opened to supply water to the circulating water tank. This can ensure that the stamping assembly maintains a low temperature and increase the service life of the stamping assembly.

[0005] With the current trend towards lightweight and precision mobile phones, the sheet metal used in the mobile phone frame is becoming thinner, and more precise stamping operations are required during production. However, in existing technologies, there are many factors that affect stamping accuracy, such as positioning deviation and vibration interference. Therefore, a stamping device with higher stamping accuracy is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a stamping device for producing mobile phone mid-frames in order to solve the above-mentioned problems.

[0007] This utility model achieves the above objectives through the following technical solutions: A stamping device for producing a mobile phone mid-frame includes a shock-absorbing base, which includes a fixed seat. A hydraulic linkage anti-overturning component is mounted on the top of the fixed seat. A worktable is mounted on the top of the hydraulic linkage anti-overturning component. Several damping spring columns are fixedly connected to the top of the worktable. A positioning mechanism is mounted on the top of the worktable. The positioning mechanism includes a positioning frame. Four sliding frames are slidably connected to the positioning frame. A distance adjustment component is mounted on the sliding frames. A positioning push plate is fixedly connected to the distance adjustment component. A positioning drive component is mounted inside the positioning frame. A stamping mechanism is mounted on the rear side of the fixed seat. The stamping mechanism includes a stamping bracket. An eccentric stamping component is mounted on the top of the stamping bracket. A stamping shaft is slidably connected to the stamping bracket. The eccentric stamping component drives the stamping shaft to rise and fall. A lifting frame is fixedly connected to the bottom of the stamping shaft. The eccentric stamping component is linked to the positioning drive component through a cam linkage component.

[0008] Preferably, an upper stamping die is fixedly connected to the bottom of the lifting frame, and a lower stamping die is fixedly connected to the positioning frame, with the upper and lower stamping dies being set accordingly.

[0009] Preferably, the hydraulic linkage anti-tipping assembly includes several double-connected hydraulic cylinders, which are divided into two groups arranged symmetrically on the left and right. One side of the double-connected hydraulic cylinder is sealed and slidably connected to a follower piston rod, and the other side of the double-connected hydraulic cylinder is sealed and slidably connected to a resisting piston rod. A resisting lever is hinged on the fixed seat. The top of the follower piston rod is installed on one side of the bottom of the worktable. One end of the resisting lever is movably connected to the resisting piston rod, and the other end of the resisting lever is installed on the other side of the bottom of the worktable.

[0010] Preferably, several follower piston rods are hinged to the same co-moving rod at their tops, and two sets of first straight groove ears arranged symmetrically on the left and right sides are fixedly connected to the bottom of the worktable, with the co-moving rod hinged to the first straight groove ear.

[0011] Preferably, a second straight groove lug is fixedly connected to the top of the resisting piston rod, one end of the resisting lever is hinged to the second straight groove lug, and the other end of the resisting lever is hinged to a small connecting rod, the other end of which is hinged to the worktable.

[0012] Preferably, the eccentric stamping assembly includes a crankshaft rotatably connected to the stamping bracket, a stamping connecting rod rotatably connected to the crankshaft, and the other end of the stamping connecting rod being hinged to the stamping shaft.

[0013] Preferably, a servo motor is fixedly connected to the rear side of the stamping bracket, a worm gear is fixedly connected to the output end of the servo motor, and a worm wheel is fixedly connected to the rear end of the crankshaft, with the worm gear meshing with the worm wheel.

[0014] Preferably, the positioning drive assembly includes a U-shaped slide bar frame fixedly connected to the bottom of the sliding frame, a drive ring frame slidably connected to the positioning frame, and four evenly distributed inclined slot blocks fixedly connected to the drive ring frame, the inclined slot blocks being slidably connected to the U-shaped slide bar frame.

[0015] Preferably, the distance adjustment assembly includes two limiting rods slidably connected to the sliding frame. One end of each limiting rod is fixedly connected to a positioning push plate, and an adjustment screw is threadedly connected to the sliding frame. One end of the adjustment screw is rotatably connected to the positioning push plate, and the other end of the adjustment screw is fixedly connected to a nut.

[0016] Preferably, the cam linkage assembly includes a linkage rod fixedly connected to one side of the drive ring frame, the linkage rod being slidably connected to the stamping bracket, a ring groove cam fixedly connected to the crankshaft, the ring groove cam having a ring groove of varying diameter, and the ring groove cam being hinged to the top of the linkage rod.

[0017] The beneficial effects are as follows: by setting up the shock-absorbing base, most of the harmful vibrations are isolated, thereby maintaining the stability of the machine body. At the same time, by setting up the positioning mechanism, the metal sheet is positioned before stamping to ensure positioning accuracy. Thus, by isolating harmful vibrations and improving positioning accuracy, the stamping accuracy can be improved.

[0018] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a perspective view of a stamping device for producing a mobile phone mid-frame according to the present invention; Figure 2 This is a left view of a stamping device for producing a mobile phone mid-frame according to the present invention; Figure 3 This is a perspective view of the shock-absorbing base structure of a stamping device for producing a mobile phone mid-frame, as described in this utility model. Figure 4 This is a left-side sectional view of the shock-absorbing base of the stamping device for producing a mobile phone mid-frame, as described in this utility model. Figure 5 This is a perspective view of the relative positions of the fixing seat and the double-connected hydraulic cylinder of the stamping device for producing a mobile phone mid-frame according to the present invention; Figure 6 This is a three-dimensional view of the positioning mechanism structure of a stamping device for producing a mobile phone mid-frame, as described in this utility model. Figure 7 This is a perspective view of the relative positions of the sliding frame and the drive ring frame of the stamping device for producing a mobile phone mid-frame according to the present invention; Figure 8 This is a three-dimensional view of the stamping mechanism structure of a stamping device for producing a mobile phone mid-frame according to the present invention; Figure 9 This is a perspective view of the relative positions of the connecting rod and the annular groove cam in a stamping device for producing a mobile phone mid-frame, as described in this utility model.

[0020] The annotations in the attached figures are explained as follows: 101. Fixed base; 102. Double-connected hydraulic cylinder; 103. Follower piston rod; 104. Resistant piston rod; 105. Co-moving rod; 106. Resistant lever; 107. Small connecting rod; 108. Worktable; 109. Damping spring column; 110. First straight groove lug; 111. Second straight groove lug; 201. Stamping bracket; 202. Servo motor; 203. Worm gear; 204. Worm wheel; 205. Crankshaft; 206. Stamped connecting rod; 207. Stamped shaft; 208. Lifting frame; 209. Upper stamping die; 301. Positioning frame; 302. Lower stamping die; 303. Sliding frame; 304. U-shaped sliding rod frame; 305. Inclined slot block; 306. Drive ring frame; 307. Connecting rod; 308. Ring groove cam; 309. Positioning push plate; 310. Limiting rod; 311. Adjusting screw; 312. Nut. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] The present invention will be further described below with reference to the accompanying drawings: like Figures 1-9As shown, a stamping device for producing a mobile phone mid-frame includes a shock-absorbing base, which includes a fixed base 101. A hydraulic linkage anti-overturning assembly is provided on the top of the fixed base 101. A worktable 108 is provided on the top of the hydraulic linkage anti-overturning assembly. Four damping spring columns 109 are provided on the top of the worktable 108. A positioning mechanism is provided on the top of the worktable 108. The positioning mechanism includes a positioning frame 301. Four sliding frames 303 are slidably connected to the positioning frame 301. A distance adjustment assembly is provided on the sliding frames 303. A positioning push plate 309 is fixedly connected to the adjusting component. The positioning push plate 309 can push the metal sheet to move. A positioning drive component is provided inside the positioning frame 301. A stamping mechanism is provided on the rear side of the fixed base 101. The stamping mechanism includes a stamping bracket 201. An eccentric stamping component is provided on the top of the stamping bracket 201. A stamping shaft 207 is slidably connected to the stamping bracket 201. The eccentric stamping component drives the stamping shaft 207 to rise and fall. A lifting frame 208 is welded to the bottom of the stamping shaft 207. The eccentric stamping component is linked by a cam. The component is linked to the positioning drive assembly. An upper stamping die 209 is fixedly connected to the bottom of the lifting frame 208, and a lower stamping die 302 is fixedly connected to the positioning frame 301. The upper stamping die 209 and the lower stamping die 302 are correspondingly arranged. In use, the operator or an external feeding device places the metal sheet on the lower stamping die 302. Then, the eccentric stamping assembly drives the stamping shaft 207 to descend, which in turn drives the lifting frame 208 to descend. The lifting frame 208 then causes the upper stamping die 209 and the lower stamping die 302 to close, forming... During the stamping of metal sheets, as the stamping shaft 207 descends, the positioning drive assembly drives the sliding frame 303 to move in the center. The sliding frame 303 clamps and positions the metal sheet, thereby ensuring the positioning accuracy of the sheet before stamping. During stamping, the lifting frame 208 and the damping spring column 109 abut against and buffer the impact force of the lifting frame 208. However, inevitably, some force is still transmitted to the shock-absorbing base. Therefore, the worktable 108 may have a tendency to tilt. The hydraulic linkage anti-overturning assembly ensures the horizontal state of the worktable 108.

[0024] The hydraulic linkage anti-tipping assembly includes several double-connected hydraulic cylinders 102, which are divided into two groups arranged symmetrically on the left and right. A follower piston rod 103 is sealed and slidably connected to one side of each double-connected hydraulic cylinder 102, and a resisting piston rod 104 is sealed and slidably connected to the other side. A resisting lever 106 is hinged to the fixed base 101. The top of the follower piston rod 103 is mounted on one side of the bottom of the worktable 108. One end of the resisting lever 106 is movably connected to the resisting piston rod 104, and the other end of the resisting lever 106 is mounted on the other side of the bottom of the worktable 108. A common resonant rod 105 is hinged to the top of each follower piston rod 103. Two sets of first straight grooves arranged symmetrically on the left and right are fixedly connected to the bottom of the worktable 108. Ear 110, the co-moving rod 105 is hinged to the first straight groove ear 110, the top of the resisting piston rod 104 is fixedly connected to the second straight groove ear 111, one end of the resisting lever 106 is hinged to the second straight groove ear 111, the other end of the resisting lever 106 is hinged to the small connecting rod 107, the other end of the small connecting rod 107 is hinged to the worktable 108. In use, the worktable 108 tends to tilt, the follower piston rod 103 on one side is compressed, and at the same time, the hydraulic pressure pushes the resisting piston rod 104 at the other end of the double-connected hydraulic cylinder 102. The resisting piston rod 104 pushes the resisting lever 106 to rotate, the resisting lever 106 drives the small connecting rod 107 to move, and the small connecting rod 107 generates a reverse tilting torque on the worktable 108, so the worktable 108 can maintain balance.

[0025] The eccentric stamping assembly includes a crankshaft 205 rotatably connected to a stamping bracket 201. A stamping connecting rod 206 is rotatably connected to the crankshaft 205. The other end of the stamping connecting rod 206 is hinged to a stamping shaft 207. A servo motor 202 is fixedly connected to the rear side of the stamping bracket 201. A worm gear 203 is fixedly connected to the output end of the servo motor 202. A worm wheel 204 is fixedly connected to the rear end of the crankshaft 205. The worm gear 203 meshes with the worm wheel 204. In use, the servo motor 202 drives the worm gear 203 to rotate, the worm gear 203 drives the worm wheel 204 to rotate, the worm wheel 204 drives the crankshaft 205 to rotate, the crankshaft 205 drives the stamping connecting rod 206 to rotate, and the stamping connecting rod 206 drives the stamping shaft 207 to reciprocate up and down, thus enabling stamping operations.

[0026] The positioning drive assembly includes a U-shaped slide bar frame 304 fixedly connected to the bottom of the sliding frame 303. A drive ring frame 306 is slidably connected to the positioning frame 301. Four evenly distributed inclined slot blocks 305 are fixedly connected to the drive ring frame 306. The inclined slot blocks 305 are slidably connected to the U-shaped slide bar frame 304. In use, the drive ring frame 306 descends, and the drive ring frame 306 drives the inclined slot blocks 305 to descend. The inclined slot blocks 305 cooperate with the U-shaped slide bar frame 304 to drive the sliding frame 303 to move towards the center. The sliding frame 303 drives the positioning push plate 309 to move and clamp the metal plate.

[0027] The distance adjustment assembly includes two limiting rods 310 slidably connected to the sliding frame 303. One end of the limiting rod 310 is fixedly connected to a positioning push plate 309. An adjusting screw 311 is threadedly connected to the sliding frame 303. One end of the adjusting screw 311 is rotatably connected to the positioning push plate 309. The other end of the adjusting screw 311 is fixedly connected to a nut 312. In use, the operator drives the nut 312 to rotate, which in turn drives the adjusting screw 311 to rotate. The adjusting screw 311 adjusts the position of the positioning push plate 309 relative to the sliding frame 303. The limiting rods 310 ensure that the positioning push plate 309 does not deflect.

[0028] The cam linkage assembly includes a linkage rod 307 fixedly connected to one side of the drive ring frame 306. The linkage rod 307 is slidably connected to the stamping bracket 201. A ring groove cam 308 is fixedly connected to the crankshaft 205. The ring groove cam 308 is provided with a ring groove of varying diameter. The ring groove cam 308 is hinged to the top of the linkage rod 307. In use, the crankshaft 205 drives the ring groove cam 308 to rotate. The ring groove cam 308 drives the linkage rod 307 to rise and fall through the ring groove. The linkage rod 307 drives the drive ring frame 306 to rise and fall, so that the positioning push plate 309 can be centered and clamped.

[0029] Working principle: The operator or an external feeding device places the metal sheet onto the lower stamping die 302. Then, the servo motor 202 drives the worm gear 203 to rotate, which in turn drives the worm wheel 204. The worm wheel 204 drives the crankshaft 205 to rotate, which in turn drives the stamping connecting rod 206 to rotate. The stamping connecting rod 206 drives the stamping shaft 207 to descend, which in turn drives the lifting frame 208 to descend. The lifting frame 208 causes the upper stamping die 209 to close with the lower stamping die 302, forming a stamping of the metal sheet. Simultaneously with the descent of the stamping shaft 207, the crankshaft 205 drives the annular groove cam 308 to rotate. The annular groove cam 308 drives the connecting rod 307 to rise and fall via the annular groove. The connecting rod 307 drives the drive ring frame 306 to rise and fall, and the drive ring frame 306 descends. The drive ring frame 306 then drives the inclined slot block 305 to descend, and the inclined slot... Block 305 and U-shaped slide bar 304 work together to drive slide frame 303 to move towards the center. Slide frame 303 drives positioning push plate 309 to move and clamp metal sheet, thereby ensuring the positioning accuracy of sheet before stamping. During stamping, lifting frame 208 and damping spring column 109 collide to buffer the impact force of lifting frame 208. However, inevitably some force is still transmitted to the shock-absorbing base. Therefore, worktable 108 may have a tendency to tilt. Worktable 108 has a tendency to overturn. Follower piston rod 103 on one side is compressed. At the same time, hydraulic pressure pushes the anti-piston rod 104 at the other end of double-connected hydraulic cylinder 102. Anti-piston rod 104 pushes anti-lever 106 to rotate. Anti-lever 106 drives small connecting rod 107 to move. Small connecting rod 107 generates a reverse overturning torque on worktable 108. Thus, worktable 108 can maintain balance.

[0030] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A stamping device for mobile phone middle frame production, comprising a shock-absorbing base, characterized in that: The shock-absorbing base includes a fixed base (101), a hydraulic linkage anti-overturning assembly is provided on the top of the fixed base (101), a worktable (108) is provided on the top of the hydraulic linkage anti-overturning assembly, a plurality of damping spring columns (109) are fixedly connected to the top of the worktable (108), a positioning mechanism is provided on the top of the worktable (108), the positioning mechanism includes a positioning frame (301), four sliding frames (303) are slidably connected on the positioning frame (301), a distance adjustment assembly is provided on the sliding frame (303), and a distance adjustment assembly is fixedly connected to the distance adjustment assembly. A positioning push plate (309) is connected to the positioning frame (301), a positioning drive assembly is provided inside the positioning frame (301), a stamping mechanism is provided on the rear side of the fixed seat (101), the stamping mechanism includes a stamping bracket (201), an eccentric stamping assembly is provided on the top of the stamping bracket (201), a stamping shaft (207) is slidably connected on the stamping bracket (201), the eccentric stamping assembly drives the stamping shaft (207) to rise and fall, a lifting frame (208) is fixedly connected to the bottom of the stamping shaft (207), and the eccentric stamping assembly is linked to the positioning drive assembly through a cam linkage assembly.

2. The punching device for mobile phone frame production according to claim 1, characterized in that: The lifting frame (208) is fixedly connected to the bottom of the upper stamping die (209), and the positioning frame (301) is fixedly connected to the lower stamping die (302). The upper stamping die (209) and the lower stamping die (302) are arranged correspondingly.

3. The punching device for mobile phone middle frame production according to claim 1, characterized in that: The hydraulic linkage anti-overturning assembly includes several double-connected hydraulic cylinders (102). The double-connected hydraulic cylinders (102) are divided into two groups arranged symmetrically on the left and right. One side of the double-connected hydraulic cylinder (102) is sealed and slidably connected to a follower piston rod (103), and the other side of the double-connected hydraulic cylinder (102) is sealed and slidably connected to a resisting piston rod (104). A resisting lever (106) is hinged on the fixed seat (101). The top of the follower piston rod (103) is installed on one side of the bottom of the worktable (108). One end of the resisting lever (106) is movably connected to the resisting piston rod (104), and the other end of the resisting lever (106) is installed on the other side of the bottom of the worktable (108).

4. The punching device for mobile phone frame production of claim 3, characterized in that: Several follower piston rods (103) are hinged to the top of the same co-moving rod (105), and the bottom of the worktable (108) is fixedly connected to two sets of first straight groove ears (110) arranged symmetrically on the left and right. The co-moving rod (105) is hinged to the first straight groove ears (110).

5. The punching device for mobile phone middle frame production according to claim 3, characterized in that: The top of the resisting piston rod (104) is fixedly connected to a second straight groove ear (111), one end of the resisting lever (106) is hinged to the second straight groove ear (111), the other end of the resisting lever (106) is hinged to a small connecting rod (107), and the other end of the small connecting rod (107) is hinged to the worktable (108).

6. The punching device for mobile phone frame production of claim 1, wherein: The eccentric stamping assembly includes a crankshaft (205) rotatably connected to the stamping bracket (201), a stamping connecting rod (206) rotatably connected to the crankshaft (205), and the other end of the stamping connecting rod (206) hinged to the stamping shaft (207).

7. The punching device for mobile phone frame production of claim 6, characterized in that: The stamping bracket (201) is fixedly connected to a servo motor (202) at the rear. The output end of the servo motor (202) is fixedly connected to a worm gear (203). The rear end of the crankshaft (205) is fixedly connected to a worm wheel (204). The worm gear (203) meshes with the worm wheel (204).

8. The punching device for mobile phone frame production of claim 6, characterized in that: The positioning drive assembly includes a U-shaped slide bar frame (304) fixedly connected to the bottom of the sliding frame (303), a drive ring frame (306) slidably connected to the positioning frame (301), and four evenly distributed inclined slot blocks (305) fixedly connected to the drive ring frame (306). The inclined slot blocks (305) are slidably connected to the U-shaped slide bar frame (304).

9. The punching device for mobile phone frame production of claim 8, characterized in that: The distance adjustment assembly includes two limiting rods (310) slidably connected to the sliding frame (303). One end of the limiting rod (310) is fixedly connected to the positioning push plate (309). The sliding frame (303) is threadedly connected to an adjusting screw (311). One end of the adjusting screw (311) is rotatably connected to the positioning push plate (309), and the other end of the adjusting screw (311) is fixedly connected to a nut (312).

10. The punching device for mobile phone frame production of claim 8, wherein: The cam linkage assembly includes a linkage rod (307) fixedly connected to one side of the drive ring frame (306), the linkage rod (307) being slidably connected to the stamping bracket (201), and a grooved cam (308) fixedly connected to the crankshaft (205). The grooved cam (308) is provided with a groove of varying diameter, and the grooved cam (308) is hinged to the top of the linkage rod (307).

Images