Lateral pushing die for mobile phone frame machining

Abstract

The utility model discloses a side pushing mould for processing a mobile phone frame, which comprises an upper mould and a lower mould, a plurality of side pushing blocks are arranged in the lower mould, a longitudinal moving deep hole is arranged in the lower mould, a guide inclined surface is arranged on one side of the longitudinal moving deep hole, and a pushing block inclined surface matched with the guide inclined surface is arranged on one side of each side pushing block attached to the guide inclined surface. The other side face, opposite to the push block inclined face, of the side push block is a pushing face. When the side push block moves from top to bottom, the push block inclined face slides on the guide inclined face so that the pushing face can move towards the side away from the guide inclined face. A pushing hole penetrating through the lower die is formed in the inner bottom face of the longitudinal movement deep hole, and an ejector pin is arranged in the pushing hole. A gap between the side pushing block and the transverse moving block forms a workpiece containing groove, the lower end face of the upper die directly extrudes the side pushing block, the pushing face of the side pushing block laterally pushes the side face of the workpiece in the downward moving process, meanwhile, an inserting rod pushes the transverse moving block layer by layer through a step to transversely extrude the outer wall of the workpiece, and the side pushing block and the transverse moving block are matched to form side pushing and extruding on the workpiece. And therefore, the workpiece can be accurately shaped.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to a side-pushing die for processing a mobile phone frame. Background Art

[0002] Traditional mobile phone cases are mostly made of aluminum alloy. With the advent of the 5G era and the increasing demand for the aesthetics of mobile phones, aluminum metal can no longer meet the functional design requirements of mobile phones and the psychological needs of consumers due to factors such as interference with signals and poor texture. Therefore, a new alternative material must be sought to manufacture mobile phone cases. Titanium alloy has the characteristics of high specific strength, biophilia, good sound permeability and good metallic texture, and it also symbolizes high-end and atmospheric identity characteristics, so it has become the most important metal material used for mobile phone cases in the 5G era.

[0003] The mobile phone frame has small specifications and high dimensional accuracy. From the manufacturing process route, the mobile phone frame can usually be directly CNC processed by plate. The whole piece of metal is directly milled into the mobile phone frame by CNC. Although it has high processing accuracy, this method has low processing efficiency, high material waste, high tool wear, and high processing costs, which in turn raises the overall cost of the mobile phone and compresses the profit margin. As an improvement, the mobile phone frame is bent using a bending mold. However, after the workpiece is bent, it will face springback of varying sizes, so that the shape accuracy of the processed mobile phone frame parts cannot meet the requirements.

[0004] In view of the above, it is necessary to propose a side push mold for processing a mobile phone frame to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the above technical problems and to provide a side push mold for processing a mobile phone frame.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a side push mold for processing a mobile phone frame, comprising an upper mold and a lower mold, a plurality of side push blocks are arranged in the lower mold, a longitudinal movement deep hole is arranged in the lower mold, a guide inclined surface is arranged on one side of the longitudinal movement deep hole, a push block inclined surface matching with the guide inclined surface is arranged on the side where the side push block is in contact, and the other side of the side push block opposite to the push block inclined surface is a pushing surface, and when the side push block moves from top to bottom, the push block inclined surface slides on the guide inclined surface to make the pushing surface move toward the side away from the guide inclined surface; a push hole penetrating the lower mold is arranged on the inner bottom surface of the longitudinal movement deep hole, a push pin is arranged in the push hole, and the push pin pushes the side push block to move upward and reset.

[0007] Furthermore, a deep transverse hole is provided in the lower mold, a transverse block is provided in the deep transverse hole, a countersunk hole is provided on the side of the transverse block facing the pushing surface, a return spring is provided in the countersunk hole, a push block step is provided on the side of the transverse block away from the pushing surface, and a transition slope is provided at the adjacent steps of the push block step.

[0008] Furthermore, the lower end surface of the upper mold is provided with an insertion rod that cooperates with the transverse displacement block, and the insertion rod cooperates with the side of the transverse displacement block provided with a push block step. The side of the transverse displacement deep hole away from the pushing surface is provided with a side socket for inserting the insertion rod, and the side of the insertion rod facing the push block step is provided with an insertion block step, and the adjacent steps of the insertion block step are provided with an insertion block inclined surface.

[0009] Furthermore, when the side push block is at the high point, the upper end surface of the side push block is higher than the upper end surface of the transverse block, and when the lower mold is closed, the lower end surface is pressed against the top surface of the side push block.

[0010] Furthermore, lower limit posts are provided at the four corners of the lower mold, and upper limit posts are provided at the four corners of the upper mold. When the molds are closed, the bottom ends of the upper limit posts are pressed against the top ends of the lower limit posts to limit the travel of the upper mold.

[0011] Furthermore, the lower mold is symmetrically provided with first side push blocks, the pushing surfaces of the two first side push blocks face the inner side of the vertical edge of the workpiece, an isosceles trapezoidal boss is provided between the two first side push blocks, and the inclined surfaces on both sides of the isosceles trapezoidal boss are guiding inclined surfaces.

[0012] Furthermore, a second side push block is provided in the lower mold and pressed against the outer side of the long side of the workpiece. A second side push block is provided at each end of the long side of the workpiece, and the pushing surface of the second side push block faces the long side of the workpiece.

[0013] Furthermore, a transverse block matched with the first side push block is provided on the outer side of the vertical edge of the workpiece, and the transverse block and the first side push block form a clamping shape for the vertical edge.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model, a side push mold for processing a mobile phone frame, pre-sets multiple side push blocks and transverse shift blocks in the lower mold, so that the gap between the side push block and the transverse shift block forms a placement groove for the workpiece, and when the upper mold is pressed down, its lower end face directly squeezes the side push block and its pushing surface pushes the side of the workpiece laterally during the downward movement, and at the same time, the insertion rod uses the step to push the transverse shift block layer by layer to laterally extrude the outer wall of the workpiece, so that the side push block and the transverse shift block cooperate to form a side push extrusion of the workpiece, thereby accurately shaping the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the structural diagram of the processed mobile phone frame workpiece;

[0016] Figure 2This is an axonometric diagram of a side-pushing mold for processing a mobile phone frame according to the utility model;

[0017] Figure 3 This is the axonometric view of the upper mold of the side push mold used for processing the frame of this mobile phone;

[0018] Figure 4 This is an exploded view of the lower mold of the side push mold used for processing the frame of this mobile phone;

[0019] Figure 5 This is a schematic longitudinal section diagram of a side push die for processing a mobile phone frame according to the utility model;

[0020] Figure 6 This is a schematic diagram of the longitudinal section of the side push mold for processing the mobile phone frame when the mold is opened;

[0021] Figure 7 This is a schematic diagram of the longitudinal section of the side push mold for processing the mobile phone frame when the mold is closed;

[0022] Figure 8 This is a top view of the lower mold of the side push mold used for processing the mobile phone frame;

[0023] In the figure: 1. upper mold; 2. lower mold; 3. side push block; 4. longitudinal deep hole; 5. guide slope; 6. push block slope; 7. pushing surface; 8. push hole; 9. ejector pin; 10. transverse deep hole; 11. transverse block; 12. countersunk hole; 13. push block step; 14. transition slope; 15. insertion rod; 16. side socket; 17. insertion block step; 18. insertion block slope; 19. lower limit column; 20. upper limit column; 21. isosceles trapezoidal boss; 22. workpiece; 23. vertical edge; 24. long edge. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0025] The processed mobile phone frame workpiece is as follows Figure 1 As shown, a U-shaped mobile phone frame workpiece 22 is formed by bending a straight blank through a bending die. The workpiece 22 has a straight long side 24 and vertical sides 23 perpendicular to the two ends of the long side 24. The device is a side push mold for processing a mobile phone frame, comprising an upper mold 1 and a lower mold 2. When the molds are closed, the upper mold 1 and the lower mold 2 clamp the side walls of the long side 24 and the vertical side 23 of the mobile phone frame workpiece 22 through internal components under pressure, and cooperate with the heat treatment of the workpiece 22, thereby facilitating the shaping of the workpiece 22. Figure 8As shown, it is a top view of the lower mold 2. When the mold is closed, the workpiece 22 receives a lateral thrust as shown by the arrow in the figure, so that the workpiece 22 can be kept accurately shaped. This side push mold has the advantages of high reusability and accurate shaping.

[0026] The lower mold 2 is provided with a plurality of side push blocks 3, such as Figure 2 , 4 As shown, a longitudinal deep hole 4 is provided in the lower mold 2, and a guiding inclined surface 5 is provided on one side of the longitudinal deep hole 4. A push block inclined surface 6 matching with the guiding inclined surface 5 is provided on the side where the side push block 3 is in contact with the guiding inclined surface 5. When the upper mold 1 is pressed down to close the mold, the pressure of the upper mold 1 acts on the upper end surface of the side push block 3, pressing the side push block 3 down and sinking it into the longitudinal deep hole 4. Due to the cooperation between the push block inclined surface 6 and the guiding inclined surface 5, one side of the side push block 3 extends outward when it moves downward, and the other side of the side push block 3 opposite to the push block inclined surface 6 is a pushing surface 7, that is, when the side push block 3 moves from top to bottom, the push block inclined surface 6 slides on the guiding inclined surface 5 to make the pushing surface 7 move toward the side away from the guiding inclined surface 5, and the side wall of the workpiece 22 placed in the lower mold 2 is pushed laterally by utilizing the movement characteristics of the pushing surface 7; a push hole 8 penetrating the lower mold 2 is provided on the inner bottom surface of the longitudinal deep hole 4, and a push pin 9 is provided in the push hole 8, and the push pin 9 pushes the side push block 3 to move upward and reset, as shown in FIG. Figure 4 , 5 As shown, each side push block 3 is provided with two or more ejector pins 9 to push it to reset. It can be understood that when the upper mold 1 is pressed down to close the mold, the side push block 3 will be pressed to move downward. Conversely, when the upper mold 1 is lifted, under the action of the ejector pins 9, the side push block 3 is lifted up, and with the guiding effect of the inclined surface, the pushing surface 7 is moved away from the extruded workpiece 22, thereby facilitating the removal of the workpiece 22 from the mold.

[0027] Furthermore, the lower mold 2 is further provided with a transverse deep hole 10, and a transverse block 11 is provided in the transverse deep hole 10. Figure 5 , 6 As shown, the traverse block 11 moves laterally in the traverse deep hole 10. Figure 8 As shown, the transverse block 11 is used to push the outer walls of the vertical edges 23 on both sides of the workpiece 22, so that it is opposite to the first side push block 3 on the inner side, so that the two form relative movement and then form a side push clamping positioning for the vertical edges 23 of the workpiece 22. The verticality of the workpiece 22 can be accurately trimmed through the extrusion effect of the side push block 3 and the transverse block 11, thereby improving the processing accuracy of the workpiece 22.

[0028] The side of the traverse block 11 facing the pushing surface 7 is provided with a countersunk hole 12. Figure 4-7As shown, a return spring is provided in the counterbore 12, one end of which is pressed against the side wall of the transverse deep hole 10, and the other end is pressed against the inner bottom surface of the counterbore 12. The return spring pushes the transverse block 11 laterally away from the workpiece 22. When the upper mold 1 is pressed down to close the mold, the upper mold 1 pushes the transverse block 11 toward the side wall of the workpiece 22 again. Specifically, a push block step 13 is provided on the side of the transverse block 11 away from the pushing surface 7, and a transition slope 14 is provided at the adjacent step of the push block step 13. Figure 3 As shown, the lower end surface of the upper mold 1 is provided with an insertion rod 15 that cooperates with the lateral block 11, and the insertion rod 15 cooperates with the side of the lateral block 11 provided with a push block step 13. The side of the lateral deep hole 10 away from the pushing surface 7 is provided with a side socket 16 for inserting the insertion rod 15, and the side of the insertion rod 15 facing the push block step 13 is provided with an insertion block step 17, and the adjacent step of the insertion block step 17 is provided with an insertion block inclined surface 18; in actual use, as shown in FIG. Figure 4-7 As shown, the upper mold 1 drives the insertion rod 15 to move downward and insert it into the side socket 16 of the transverse deep hole 10. The side of the insertion rod 15 provided with the insertion block step 17 cooperates with the side of the transverse block 11 provided with the push block step 13. The insertion block step 17 and the push block step 13 are inverted with each other. As the insertion rod 15 moves downward, the insertion block inclined surface 18 fits with the transition inclined surface 14. Under the extrusion action, the transverse block 11 is squeezed and moves toward the side of the pushing surface 7. Due to the setting of the multi-layer steps, the transverse block 11 can gradually squeeze and press the side wall of the workpiece 22 on the side of the pushing surface 7.

[0029] like Figure 6 As shown, when the side push block 3 is at the high point, the upper end surface of the side push block 3 is higher than the upper end surface of the lateral displacement block 11, and the lower end surface of the lower mold 2 is pressed against the top surface of the side push block 3 when the mold is closed. The four corners of the lower mold 2 are provided with lower limit posts 19, and the four corners of the upper mold 1 are provided with upper limit posts 20. When the mold is closed, the bottom end of the upper limit post 20 is pressed against the top end of the lower limit post 19 to limit the travel of the upper mold 1. Figure 7 As shown, when the upper mold 1 is in place, the top surface of the side push block 3 is higher than the top surface of the transverse block 11. That is to say, during the downward pressure to close the mold, the transverse block 11 will not be subjected to the downward pressure of the top surface, but only under the action of the insert rod 15, the transverse block 11 moves laterally through the cooperation between the insert block step 17 and the push block step 13.

[0030] Specifically, Figure 8 As shown, two workpieces 22 can be processed simultaneously in the lower die, each workpiece 22 is provided with a corresponding placement groove in the lower die 2, and each workpiece 22 is symmetrically provided with a first side push block 3 in the lower die 2, and the pushing surfaces 7 of the two first side push blocks 3 face the inner side of the vertical edge 23 of the workpiece 22, as shown in FIG. Figure 8 As shown by the middle arrow, the two side push blocks 3 push on the vertical edge 23 from the inside to the outside; Figure 6As shown, an isosceles trapezoidal boss 21 is provided between the two first side push blocks 3, and the inclined surfaces on both sides of the isosceles trapezoidal boss 21 are guide inclined surfaces 5. Furthermore, a second side push block 3 is provided in the lower mold 2, which is pressed against the outside of the long side 24 of the workpiece 22. A second side push block 3 is provided at each end of the long side 24 of the workpiece 22, and the pushing surface 7 of the second side push block 3 faces the long side 24 of the workpiece 22. A transverse block 11 that cooperates with the first side push block 3 is provided on the outside of the vertical side 23 of the workpiece 22, and the transverse block 11 and the first side push block 3 form a clamping shape on the vertical side 23. The pushing directions of the transverse block 11 and the first side push block 3 are opposite, and they are synchronously squeezed on the vertical side 23 of the workpiece 22 when the mold is closed, so as to maintain its verticality. As shown Figure 8 The arrow pointing to the left in the middle indicates the moving direction of the second side push block 3. When the mold is closed, the second side push block 3 squeezes the outer side of the long side 24 of the workpiece 22; when the mold is closed, the second side push block 3 can keep the end of the long side 24 straight, effectively improving the processing accuracy.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A side push mold for processing a mobile phone frame, comprising an upper mold (1) and a lower mold (2), characterized in that: A plurality of side push blocks (3) are arranged in the lower mold (2), a longitudinal shift deep hole (4) is arranged in the lower mold (2), a guide inclined surface (5) is arranged on one side of the longitudinal shift deep hole (4), a push block inclined surface (6) matching with the guide inclined surface (5) is arranged on the side of the side push block (3) in contact with the guide inclined surface (5), and the other side of the side push block (3) opposite to the push block inclined surface (6) is a pushing surface (7), when the side push block (3) moves from top to bottom, the push block inclined surface (6) slides on the guide inclined surface (5) so that the pushing surface (7) moves toward the side away from the guide inclined surface (5); a push hole (8) penetrating the lower mold (2) is arranged on the inner bottom surface of the longitudinal shift deep hole (4), and a push pin (9) is arranged in the push hole (8), and the push pin (9) pushes the side push block (3) to move upward and reset.

2. A side push mold for processing a mobile phone frame according to claim 1, characterized in that: The lower mold (2) is also provided with a transverse deep hole (10), a transverse block (11) is provided in the transverse deep hole (10), a countersunk hole (12) is provided on the side of the transverse block (11) facing the pushing surface (7), a return spring is provided in the countersunk hole (12), a push block step (13) is provided on the side of the transverse block (11) away from the pushing surface (7), and a transition slope (14) is provided at the adjacent steps of the push block step (13).

3. A side push mold for processing a mobile phone frame according to claim 2, characterized in that: The lower end surface of the upper mold (1) is provided with an insertion rod (15) that cooperates with the transverse block (11), and the insertion rod (15) cooperates with the side of the transverse block (11) provided with a push block step (13). The side of the transverse deep hole (10) away from the pushing surface (7) is provided with a side socket (16) for inserting the insertion rod (15), and the side of the insertion rod (15) facing the push block step (13) is provided with an insertion block step (17), and the adjacent step of the insertion block step (17) is provided with an insertion block inclined surface (18).

4. A side push mold for processing a mobile phone frame according to claim 3, characterized in that: When the side push block (3) is located at the high point, the upper end surface of the side push block (3) is higher than the upper end surface of the transverse block (11), and when the lower mold (2) is closed, its lower end surface is pressed against the top surface of the side push block (3).

5. A side push mold for processing a mobile phone frame according to claim 4, characterized in that: The four corners of the lower mold (2) are provided with lower limit posts (19), and the four corners of the upper mold (1) are provided with upper limit posts (20). When the molds are closed, the bottom ends of the upper limit posts (20) are pressed against the top ends of the lower limit posts (19) to limit the travel of the upper mold (1).

6. A side push mold for processing a mobile phone frame according to claim 3, characterized in that: The lower mold (2) is symmetrically provided with first side push blocks (3), the pushing surfaces (7) of the two first side push blocks (3) face the inner side of the vertical edge (23) of the workpiece (22), an isosceles trapezoidal boss (21) is provided between the two first side push blocks (3), and the inclined surfaces on both sides of the isosceles trapezoidal boss (21) are guide inclined surfaces (5).

7. A side push mold for processing a mobile phone frame according to claim 3, characterized in that: The lower mold (2) is provided with a second side push block (3) pressed against the outside of the long side (24) of the workpiece (22), and a second side push block (3) is respectively provided at both ends of the long side (24) of the workpiece (22), and a pushing surface (7) of the second side push block (3) faces the long side (24) of the workpiece (22).

8. A side push mold for processing a mobile phone frame according to claim 6, characterized in that: A transverse block (11) matched with the first side push block (3) is arranged outside the vertical edge (23) of the workpiece (22); the transverse block (11) and the first side push block (3) form a clamping shape for the vertical edge (23).

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