Processing method of composite metal frame, composite metal frame and electronic equipment

Abstract

The invention provides a machining method of a composite metal frame, the composite metal frame and electronic equipment, and the machining method comprises the steps that a metal composite base material is provided, and the metal composite base material comprises a first metal layer and a second metal layer which are laminated and combined; depositing holes are formed from the surface of the first metal layer to the interior of the metal composite base material; molten filling metal is deposited in the deposition hole and solidified to form a filling body, so that the filling body is tightly attached to the inner wall of the main body hole section; and removing part of the filling body and the second metal layer corresponding to the filling body to form a mounting hole, wherein the second metal layer and the filling body are exposed from the inner wall of the mounting hole. According to the processing method, as the aperture of at least part of the accommodating hole section is larger than that of the main body hole section, the molten filling metal can fill the deposition hole to form the filling body, the filling body can be tightly attached to the joint of the first metal layer and the second metal layer, and the uniformity of the joint of the first metal layer and the second metal layer is good; therefore, the quality of the composite metal frame is improved.

Description

Technical Field

[0001] The present application relates to the technical field of metal processing, and in particular to a processing method of a composite metal frame, a composite metal frame and an electronic device. Background Art

[0002] When two metal materials are stacked and connected by hot melt drilling, a deposition hole is usually first processed on the metal material on the inner side, and then a tool with a sharp angle is used to rotate at high speed on the surface of the outer metal material and squeeze from the outer metal material to the inner metal material. The outer metal material is melted under high temperature and high frequency to form a hot melt hole connected to the deposition hole. The side wall of the hot melt hole is formed by the melted metal material and adheres to at least part of the side wall of the deposition hole.

[0003] However, due to the uneven release of processing stress on the outer metal material during the hot melt drilling process, the side walls of the formed hot melt hole have problems such as cracks or missing, resulting in poor uniformity at the connection between the two metal materials and low quality of the resulting composite metal frame. Summary of the invention

[0004] In view of the above, it is necessary to provide a processing method of a composite metal frame, a composite metal frame and an electronic device to improve the quality of the composite metal frame.

[0005] In order to achieve the above objectives, in a first aspect, the present application discloses a method for processing a composite metal frame, comprising:

[0006] Providing a metal composite substrate, the metal composite substrate comprising a first metal layer and a second metal layer laminated together;

[0007] A deposition hole is formed from the surface of the first metal layer to the inside of the metal composite substrate, wherein the deposition hole includes a main hole section and a receiving hole section connected to each other, wherein the main hole section is located on one side of the first metal layer, and the receiving hole section is at least partially received in the second metal layer, and the aperture of at least part of the receiving hole section is larger than the aperture of the main hole section;

[0008] Depositing molten filler metal in the deposition hole and solidifying it to form a filler body, so that the filler body is closely fitted to the inner wall of the main body hole section;

[0009] A portion of the filling body and the second metal layer corresponding to the filling body are removed to form a mounting hole, and the second metal layer and the filling body are exposed from the inner wall of the mounting hole.

[0010] As an optional implementation, in an embodiment of the first aspect of the present application, the step of forming a deposition hole from the surface of the first metal layer to the inside of the metal composite substrate includes:

[0011] Using a first tool to open a hole from the first metal layer to the second metal layer to form the main body hole section;

[0012] A second tool is used to drill a hole from the bottom of the main body hole section toward the second metal layer to form the receiving hole section, and the receiving hole section extends into the second metal layer.

[0013] As an optional implementation, in an embodiment of the first aspect of the present application, the diameter of the accommodating hole segment increases from an end connected to the main body hole segment to an end away from the main body hole segment.

[0014] As an optional implementation, in an embodiment of the first aspect of the present application, the step of depositing molten filling metal in the deposition hole and solidifying to form a filling body includes:

[0015] Extending a filling metal wire into the deposition hole, and arranging the filling metal wire coaxially with the deposition hole;

[0016] The filling metal wire is irradiated with a laser whose spot coincides with the center of the deposition hole, so that the filling metal wire is melted and filled in the deposition hole to form the filling body.

[0017] As an optional implementation, in an embodiment of the first aspect of the present application, the processing method of the composite metal frame further includes:

[0018] Taking pictures to obtain an image of the deposition hole;

[0019] Determining the position of the light spot on the image and the position of the center of the deposition hole;

[0020] Based on the position of the light spot and the position of the center of the deposition hole being within a preset error range, it is determined that the light spot coincides with the center of the deposition hole.

[0021] As an optional implementation, in an embodiment of the first aspect of the present application, before the step of extending the filling metal wire into the deposition hole, the method further includes:

[0022] Using a wire straightening device to adjust the straightness of the filler wire;

[0023] A detection device is used to detect the straightness of the adjusted filling metal wire.

[0024] As an optional implementation, in an embodiment of the first aspect of the present application, the wire straightening device includes a driving wheel assembly and an adjustment assembly arranged side by side, the driving wheel assembly includes n driving wheels arranged at intervals, the adjustment assembly includes (n-1) adjustment members arranged at intervals, the n driving wheels and the (n-1) adjustment members are arranged alternately, and the step of using the wire straightening device to adjust the straightness of the filler wire includes:

[0025] causing the filler wire to abut against the n moving wheels, wherein the filler wire comprises a first end and a second end opposite to each other;

[0026] Make the adjusting member corresponding to the first end among the (n-1) adjusting members move toward the moving wheel assembly and abut against the first end, so that the second end moves a first distance in a first direction;

[0027] Make another one of the (n-1) adjusting members move toward the moving wheel assembly and abut against the filling wire, so that the second end moves the first distance in a second direction opposite to the first direction;

[0028] The remaining adjusting members among the (n-1) adjusting members are moved toward the moving wheel assembly and abut against the filler wire to adjust the straightness of the filler wire.

[0029] As an optional implementation, in an embodiment of the first aspect of the present application, the detection device includes a detection block, the detection block is provided with a detection hole, and the step of using the detection device to detect the straightness of the adjusted filling metal wire includes:

[0030] Passing the filler wire through the detection hole of the detection block multiple times;

[0031] Based on the fact that the filling metal wire does not contact the hole wall of the detection hole, it is confirmed that the straightness of the filling metal wire meets the standard.

[0032] As an optional implementation, in an embodiment of the first aspect of the present application, the laser is connected to the filler wire, and after confirming that the straightness of the filler wire meets the standard, the method further includes:

[0033] placing a test block in a first position;

[0034] causing the laser to emit laser light toward the center of the test block;

[0035] Based on the fact that the spot of the laser light emitted by the laser is located at the center of the test block, the test block is moved toward the laser by a second distance to a second position;

[0036] Determining whether the spot of the laser light emitted by the laser is located at the center of the test block;

[0037] Based on the fact that the spot of the laser light emitted by the laser is located at the center of the test block, the test block is moved away from the laser by the second distance to the first position, and it is determined again whether the spot of the laser light emitted by the laser is located at the center of the test block;

[0038] Based on the spot of the laser light emitted by the laser being located at the center of the test block again, the filler wire is moved toward the center of the test block, and it is determined whether the projection of the filler wire on the test block coincides with the center of the test block;

[0039] Based on the projection of the filling wire on the test block coinciding with the center of the test block, it is determined that the spot of the laser light emitted by the laser is concentric with the filling wire.

[0040] As an optional implementation, in an embodiment of the first aspect of the present application, the method further includes:

[0041] Based on the fact that the spot of the laser light emitted by the laser is concentric with the filling metal wire, the laser is caused to emit the laser light toward the test metal plate, wherein the distance between the test metal plate and the laser is equal to the distance between the bottom of the deposition hole and the laser;

[0042] Based on the fact that the spot of the laser light emitted by the laser toward the test metal plate meets the standard, it is determined that the position of the laser is qualified.

[0043] As an optional implementation, in an embodiment of the first aspect of the present application, the step of determining whether the position of the laser is qualified based on that the spot of the laser emitted by the laser toward the test metal plate meets the standard comprises:

[0044] Detecting the color of the laser spot emitted by the laser toward the test metal plate;

[0045] determining whether the spot of the laser light emitted by the laser toward the test metal plate meets the standard based on the color of the spot of the laser light emitted by the laser toward the test metal plate;

[0046] Based on the fact that the spot of the laser light emitted by the laser toward the test metal plate meets the standard, it is determined that the position of the laser is qualified.

[0047] As an optional implementation, in an embodiment of the first aspect of the present application, the step of determining whether the position of the laser is qualified based on that the spot of the laser emitted by the laser toward the test metal plate meets the standard comprises:

[0048] detecting the shape of the spot of the laser emitted by the laser toward the test metal plate;

[0049] determining whether the spot of the laser light emitted by the laser toward the test metal plate meets the standard based on the shape of the spot of the laser light emitted by the laser toward the test metal plate;

[0050] Based on the fact that the spot of the laser light emitted by the laser toward the test metal plate meets the standard, it is determined that the position of the laser is qualified.

[0051] As an optional implementation, in an embodiment of the first aspect of the present application, the step of determining whether the position of the laser is qualified based on the compliance standard of the laser emitted by the laser toward the test metal plate comprises:

[0052] detecting the size of the spot of the laser emitted by the laser toward the test metal plate;

[0053] determining whether the spot of the laser light emitted by the laser toward the test metal plate meets the standard based on the size of the spot of the laser light emitted by the laser toward the test metal plate;

[0054] Based on the fact that the spot of the laser light emitted by the laser toward the test metal plate meets the standard, it is determined that the position of the laser is qualified.

[0055] In the second aspect, the present application discloses a composite metal frame, comprising a first metal layer and a second metal layer stacked together, the composite metal frame also comprising a deposition hole, the deposition hole is formed from the surface of the first metal layer to the interior of the metal composite substrate, the deposition hole comprises a main hole section and a receiving hole section connected to each other, the main hole section is located on one side of the first metal layer, the receiving hole section is at least partially received in the second metal layer, the aperture of at least part of the receiving hole section is larger than the aperture of the main hole section, the inner wall of the deposition hole is tightly fitted with a filling body, the filling body and the second metal layer corresponding to the filling body are provided with an installation hole, the second metal layer and the filling body are exposed from the inner wall of the installation hole.

[0056] As an optional implementation, in an embodiment of the second aspect of the present application, the material of the first metal layer includes aluminum alloy, the material of the second metal layer includes titanium or titanium alloy, and the material of the filler includes titanium.

[0057] In a third aspect, the present application discloses an electronic device, comprising the composite metal frame as described in the second aspect above.

[0058] In the processing method, composite metal frame and electronic device of the composite metal frame, a deposition hole is first formed from the surface of the first metal layer to the inside of the metal composite substrate, the deposition hole includes a main hole section and a receiving hole section connected to each other, the main hole section is located on one side of the first metal layer, the receiving hole section is at least partially received in the second metal layer, and the aperture of at least part of the receiving hole section is larger than the aperture of the main hole section, then molten filling metal is deposited in the deposition hole and solidified to form a filling body, so that the filling body is tightly fitted with the inner wall of the main hole section, and finally part of the filling body and the second metal layer corresponding to the filling body are removed to form a mounting hole, the second metal layer and the filling body are exposed from the inner wall of the mounting hole, because the aperture of at least part of the receiving hole section is larger than the aperture of the main hole section, the molten filling metal can fill the deposition hole to form the filling body, reduce the poor cracking of the CNC processing side wall caused by incomplete filling, and the second metal layer and the filling body are exposed from the inner wall of the mounting hole, the filling body can be tightly fitted at the connection between the first metal layer and the second metal layer, and the uniformity of the connection between the first metal layer and the second metal layer is good, thereby improving the quality of the composite metal frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] Figure 1 A flow chart of a method for processing a composite metal frame proposed in an embodiment of the present application.

[0060] Figure 2 This is a schematic structural diagram of a metal composite substrate proposed in an embodiment of the present application.

[0061] Figure 3 for Figure 2 The schematic cross-sectional view of the metal composite substrate along the AA direction is shown.

[0062] Figure 4 for Figure 2 A schematic diagram of the structure after a filling body is formed in the deposition hole of the metal composite substrate is shown.

[0063] Figure 5 for Figure 4 The structure schematic diagram of the composite metal frame is shown in which a part of the filler and the second metal layer corresponding to the filler are removed from the metal composite substrate to form a mounting hole.

[0064] Figure 6 The present invention is a flow chart of the steps of forming a deposition hole from the surface of the first metal layer to the inside of the metal composite substrate.

[0065] Figure 7 A flow chart of the steps of depositing molten filler metal in a deposition hole and solidifying to form a filler body.

[0066] Figure 8 Schematic diagram of the structure of the filling metal wire in the laser irradiation deposition hole.

[0067] Fig. 9 Flowchart of steps for determining the coincidence of the light spot with the center of the deposition hole.

[0068] Fig.10 The flowchart is a step before the step of extending the filling wire into the deposition hole.

[0069] Fig.11 It is a structural schematic diagram of the wire straightening device.

[0070] Fig.12 for Fig.11 The process diagram of the wire straightening device adjusting the straightness of the metal wire is shown.

[0071] Fig.13 A schematic diagram of the structure of the detection device.

[0072] Fig.14 Flow chart of the steps for the wire straightening device to adjust the straightness of the filler wire.

[0073] Fig.15 A flow chart of the steps for enabling a detection device to detect the straightness of an adjusted filler wire.

[0074] Fig.16 Flowchart of the steps to follow to confirm that the straightness of the filler wire meets the standards.

[0075] Fig.17 Schematic diagram of the structure for determining whether the projection of the filling wire on the test block coincides with the center of the test block.

[0076] Fig.18 A top view of the test block.

[0077] Fig.19 The present invention is a flowchart of the steps for determining the position of the laser to be qualified according to an embodiment of the present application.

[0078] Fig. 20 The present invention is a flowchart of steps for determining the position of the laser according to another embodiment of the present application.

[0079] Fig.21 This is a schematic diagram of the structure of the laser spot emitted by the laser of the present application.

[0080] Fig. 22 The present invention is a flowchart of the steps of determining the position of the laser according to another embodiment of the present application.

[0081] Fig.23 The present invention is a flowchart of steps for determining that the position of the laser is qualified according to yet another embodiment of the present application.

[0082] Main component symbols

[0083] Metal composite substrate 100

[0084] The first metal layer 10

[0085] The second metal layer 20

[0086] Deposition hole 30

[0087] Main body hole section 31

[0088] Accommodating hole section 32

[0089] Filling body 40

[0090] Mounting hole 41

[0091] Filler wire 200

[0092] First end 210

[0093] Second end 220

[0094] Laser 300

[0095] Light spot 310

[0096] Wire Sorting Device 400

[0097] Moving wheel assembly 410

[0098] Drive wheel 411

[0099] Adjustment Components 420

[0100] Adjustment 421

[0101] Detection device 500

[0102] Detection block 510

[0103] Detection hole 511

[0104] Laser 601

[0105] Test Block 600

[0106] Scale circle 610

[0107] Composite metal frame 700 DETAILED DESCRIPTION

[0108] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0109] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0110] The following is a detailed description of various embodiments of the present invention in conjunction with the accompanying drawings.

[0111] First, see Figure 1 The present application discloses a composite metal frame 700 (such as Figure 5 The processing method of the invention comprises:

[0112] S10, see Figure 2 , a metal composite substrate 100 is provided, and the metal composite substrate 100 includes a first metal layer 10 and a second metal layer 20 which are stacked and combined.

[0113] The material of the first metal layer 10 includes an aluminum alloy, and the material of the second metal layer 20 includes titanium or a titanium alloy. It is understood that in other embodiments, the first metal layer 10 and the second metal layer 20 may also be other metals, which are not specifically limited here, wherein the hardness of the metal forming the first metal layer 10 is less than the hardness of the metal forming the second metal layer 20, and the second metal layer 20 has stronger chemical stability than the first metal layer 10.

[0114] S20, see Figure 3 A deposition hole 30 is formed from the surface of the first metal layer 10 to the inside of the metal composite substrate 100. The deposition hole 30 includes a main hole segment 31 and a receiving hole segment 32 connected to each other. The main hole segment 31 is located on one side of the first metal layer 10. The receiving hole segment 32 is at least partially received in the second metal layer 20. The aperture of at least part of the receiving hole segment 32 is larger than the aperture of the main hole segment 31.

[0115] The deposition hole 30 is substantially a T-shaped hole.

[0116] S30, see Figure 4 , molten filling metal is deposited in the deposition hole 30 and solidified to form a filling body 40 , so that the filling body 40 is closely fitted with the inner wall of the main body hole section 31 .

[0117] The material of the filling metal may be the same as that of the second metal layer 20 , that is, the material of the filling metal is titanium or titanium alloy.

[0118] S40, see Figure 5, a portion of the filling body 40 and the second metal layer 20 corresponding to the filling body 40 are removed to form a mounting hole 41 , and the second metal layer 20 and the filling body 40 are exposed from the inner wall of the mounting hole 41 .

[0119] In the processing method of the above-mentioned composite metal frame 700, since the aperture of at least part of the accommodating hole segment 32 is larger than the aperture of the main hole segment 31, the molten filling metal can fill the main hole segment 31 of the deposition hole 30 to form a filling body 40, thereby reducing the poor cracking of the CNC processing side wall caused by incomplete filling, and the second metal layer 20 and the filling body 40 are exposed from the inner wall of the mounting hole 41, and the filling body 40 can fit tightly to the connection between the first metal layer 10 and the second metal layer 20, and the uniformity of the connection between the first metal layer 10 and the second metal layer 20 is better, thereby improving the quality of the composite metal frame 700.

[0120] As an alternative implementation, see Figure 6 The step of forming the deposition hole 30 from the surface of the first metal layer 10 to the inside of the metal composite substrate includes:

[0121] S21 , using a first tool to drill a hole from the first metal layer 10 toward the second metal layer 20 to form a main body hole section 31 .

[0122] S22 , using a second tool to drill a hole from the bottom of the main body hole section 31 toward the second metal layer 20 to form an accommodating hole section 32 , wherein the accommodating hole section 32 extends into the second metal layer 20 .

[0123] The first tool and the second tool are both milling cutters, and the first tool and the second tool cooperate with each other to process a deposition hole 30 of a required size.

[0124] In some embodiments, after the receiving hole section 32 is formed, a third tool may be used to fine-mill the inner wall of the main hole section 31 so that the filling body 40 fits tightly with the inner wall of the main hole section 31 .

[0125] As an optional embodiment, the diameter of the receiving hole section 32 increases from the end connected to the main body hole section 31 to the end away from the main body hole section 31. In this way, the bottom of the main body hole section 31 can be cleaned properly to prevent residue from being left at the bottom of the processing, thereby affecting the flow of the molten filler metal or causing uneven filling.

[0126] The aperture of the accommodation hole section 32 may gradually increase from the end connected to the main hole section 31 to the end away from the main hole section 31, or may first increase and then decrease, wherein the aperture of the accommodation hole section 32 after the decrease is larger than the aperture of the main hole section 31.

[0127] Among them, the aperture value range of the main hole section 31 is 2mm-4mm. If the aperture of the main hole section 31 is less than 2mm, the laser will be offset and easily burn the hole wall of the main hole section 31; if the aperture of the main hole section 31 is greater than 4mm, the filling metal wire will be wasted, and more energy will be required to melt the filling metal wire. Due to the large volume, the molten filling metal is difficult to solidify evenly, which is prone to quality problems.

[0128] As an alternative implementation, see Figure 7 The step of depositing molten filling metal in the deposition hole 30 and solidifying to form the filling body 40 includes:

[0129] S31, see Figure 8 , the filling wire 200 is extended into the deposition hole 30 , and the filling wire 200 is coaxially arranged with the deposition hole 30 .

[0130] S32 , using the laser 300 with the light spot 310 coinciding with the center of the deposition hole 30 to irradiate the filling metal wire 200 , so that the filling metal wire 200 melts and fills in the deposition hole 30 to form a filling body 40 .

[0131] Among them, the filling metal wire 200 can be produced by a wire producing machine (not shown in the figure). The filling metal wire 200 is coaxial with the deposition hole 30 to ensure the precise positioning of the filling metal wire 200 in the deposition hole 30, so that the energy of the laser 300 can be concentrated on the tip of the filling metal wire 200, thereby achieving precise control of the molten metal filling; laser 300 irradiation can make the filling metal wire 200 melt quickly, reduce the heat-affected zone, thereby improving the quality and structural integrity of the filling body 40; and the laser 300 melting filling can optimize the microstructure of the filling body 40, thereby improving its mechanical properties and corrosion resistance.

[0132] As an alternative implementation, see Fig. 9 The processing method of the composite metal frame 700 further includes:

[0133] S421 , capturing an image of the deposition hole 30 .

[0134] The image of the deposition hole 30 may be captured by a CCD camera to analyze the size, shape and position of the deposition hole 30 , thereby ensuring the accuracy of subsequent laser 300 processing.

[0135] S422 , determining the position of the light spot 310 on the image and the position of the center of the deposition hole 30 .

[0136] The image processing technology can be used to determine the exact position of the laser spot 310 on the image. At the same time, the position of the center of the deposition hole 30 also needs to be determined so as to accurately align the laser spot 310 to the center of the deposition hole 30 .

[0137] S423 , based on the position of the light spot 310 and the position of the center of the deposition hole 30 being within a preset error range, determining that the light spot 310 coincides with the center of the deposition hole 30 .

[0138] In order to ensure the precise alignment of the laser 300 irradiation, by comparing the position of the spot 310 and the center position of the deposition hole 30, the position of the laser 300 irradiation is adjusted to make it coincide with the center of the deposition hole 30 or within an acceptable error range. It can be understood that the preset error range defines the maximum deviation allowed when the laser 300 spot 310 is aligned with the center of the deposition hole 30, and this deviation range needs to be set according to specific processing requirements and material properties. The preset error range can be ±0.05mm.

[0139] Through the above steps, the accuracy and quality of the filling process can be improved, ensuring that the filling wire 200 can be accurately melted in the deposition hole 30 and form a uniform and dense filling body 40; by accurately controlling the position of the laser 300 irradiation, defects in the processing process, such as bubbles, incomplete filling or excessive melting, can be reduced, thereby improving the performance and reliability of the final product. In addition, this precise alignment technology can also improve production efficiency, reduce material waste, and potentially extend the service life of processing equipment.

[0140] As an alternative implementation, see Fig.10 Before the step of extending the filling wire 200 into the deposition hole 30, the method further comprises:

[0141] S411, see Fig.11 , a wire straightening device 400 is used to adjust the straightness of the filler wire 200 .

[0142] S412, using the detection device 500 (such as Fig.13 ) to detect the straightness of the adjusted filling wire 200.

[0143] Among them, the function of the detection device 500 is to verify whether the filling wire 200 has reached the required straightness standard after adjustment. Through detection, it can ensure that the quality of the filling wire 200 meets the processing requirements and avoid problems such as uneven filling, poor contact with the hole wall or inaccurate irradiation of the laser 300 caused by bending or twisting of the filling wire 200.

[0144] Through the above steps, the accuracy and quality of the filling process can be improved, ensuring that the filling wire 200 can be accurately melted and filled into the deposition hole 30; by ensuring the straightness of the filling wire 200, defects that may occur during the filling process, such as bubbles, incomplete filling or over-melting, can be reduced, thereby improving the performance and reliability of the final product. In addition, this control of the straightness of the filling wire 200 can also improve production efficiency, reduce material waste, and potentially extend the service life of processing equipment; by accurately controlling the quality of the filling wire 200, the stability and consistency of the laser 300 processing process can be ensured, thereby obtaining a better filling effect.

[0145] As an alternative implementation, see Fig.11 and Fig.14 The wire straightening device 400 includes a driving wheel assembly 410 and an adjustment assembly 420 arranged side by side, the driving wheel assembly 410 includes n driving wheels 411 arranged at intervals, the adjustment assembly 420 includes (n-1) adjustment members 421 arranged at intervals, the n driving wheels 411 and the (n-1) adjustment members 421 are arranged alternately, and the steps of using the wire straightening device 400 to adjust the straightness of the filler wire 200 specifically include:

[0146] S411A, making the filler wire 200 abut against the n moving wheels 411 , wherein the filler wire 200 includes a first end 210 and a second end 220 opposite to each other.

[0147] S411B, see Fig.12 A in the figure makes the adjusting member 421 corresponding to the first end 210 among the (n-1) adjusting members 421 move toward the moving wheel assembly 410 and abut against the first end 210, so that the second end 220 moves a first distance (such as Fig.12 (as shown in B in the figure).

[0148] S411C, another adjusting member 421 of the (n-1) adjusting members 421 is moved toward the moving wheel assembly 410 and abuts against the filling wire 200, so that the second end 220 moves a first distance (such as 0.001mm) in a second direction opposite to the first direction. Fig.12 , wherein the first direction is rightward and the second direction is leftward.

[0149] S411D, see Fig.12 D in the figure makes the remaining adjusting members 421 of the (n−1) adjusting members 421 move toward the moving wheel assembly 410 and abut against the filler wire 200 to adjust the straightness of the filler wire 200 .

[0150] Specifically, n is 4. There are two wire straightening devices 400, and the two wire straightening devices 400 are arranged at intervals in the vertical direction. Fig.12The two wire straightening devices 400 may operate sequentially, and each wire straightening device 400 operates sequentially according to steps S411A-S411D to adjust the straightness of the filler wire 200 .

[0151] In the above steps, by moving and slightly abutting the first adjusting member 421, a force can be applied to the first end 210 of the filling wire 200, so that the second end 220 thereof is slightly displaced in the first direction; by moving and slightly abutting the second adjusting member 421, the second end 220 of the filling wire 200 can be displaced in the second direction opposite to the first direction, so as to further adjust and correct the straightness of the filling wire 200; by moving and slightly abutting the remaining adjusting members 421, the filling wire 200 can be finely adjusted to ensure that the straightness of the entire filling wire 200 meets the requirements. By the coordinated work of the moving wheel assembly 410 and the adjusting assembly 420, the filling wire 200 can be accurately adjusted to ensure its smooth transportation and accurate filling in the deposition hole 30. It can be understood that when the second wire straightening device 400 is operating, through the movement and slight abutment of the first adjusting member 421, force can be applied to the filler wire 200, so that the second end 220 of the filler wire 200 is slightly displaced in a third direction, and the third direction is perpendicular to the first direction; through the movement and slight abutment of the second adjusting member 421, the second end 220 of the filler wire 200 can be displaced in a fourth direction opposite to the third direction, so as to further adjust and correct the straightness of the filler wire 200; through the movement and slight abutment of the remaining adjusting members 421, the filler wire 200 can be finely adjusted.

[0152] As an alternative implementation, see Fig.13 and Fig.15 The detection device 500 includes a detection block 510, and a detection hole 511 is opened on the detection block 510. The steps of using the detection device 500 to detect the straightness of the adjusted filling metal wire 200 include:

[0153] S412A, making the filling wire 200 pass through the detection hole 511 of the detection block 510 multiple times.

[0154] S412B, based on the fact that the filler wire 200 does not contact the hole wall of the inspection hole 511 , confirm that the straightness of the filler wire 200 meets the standard.

[0155] Specifically, the filler wire 200 may be passed through the detection hole 511 of the detection block 510 three times in succession. The diameter of the detection hole 511 is 1.5 mm to 2 mm. The length of the filler wire 200 may be 200 mm.

[0156] In the above steps, the straightness is detected by allowing the filler wire 200 to pass through a detection hole 511 with a specific size and shape. The detection hole 511 is usually designed to simulate certain characteristics of the actual deposition hole 30, or to provide a standardized detection environment; if the filler wire 200 does not touch the hole wall when passing through the detection hole 511, it indicates that the straightness of the filler wire 200 meets the requirements, that is, the filler wire 200 maintains good centering during the passing process without deviation or bending. This can be a final confirmation of the straightness of the filler wire 200 to ensure that it can be accurately guided and positioned in the subsequent deposition process.

[0157] As an alternative implementation, see Fig.16 , the laser is connected to the filler wire 200, that is, the laser is bound to the filler wire 200. After confirming that the straightness of the filler wire 200 meets the standard, the method further includes:

[0158] S401, see Fig.17 , place the test block 600 in the first position.

[0159] S402, please also refer to Fig.18 , causing the laser 601 to emit laser light 300 toward the center of the test block 600 .

[0160] The surface of the test block 600 is provided with a plurality of concentric scale circles 610, and the diameters of the plurality of scale circles 610 may be 1 mm, 2 mm, 3 mm, 4 mm, and 5 mm, respectively. By emitting the laser 300 toward the center of the test block 600, the situation where the laser 601 is aligned with the deposition hole 30 in actual work can be simulated.

[0161] S403 , based on the light spot 310 of the laser 300 emitted by the laser 601 being located at the center of the test block 600 , the test block 600 is moved toward the laser 601 by a second distance to a second position.

[0162] Among them, the second distance is 5 mm.

[0163] S404 , determining whether the light spot 310 of the laser 300 emitted by the laser 601 is located at the center of the test block 600 .

[0164] By reconfirming the position of the light spot 310 , it can be ensured that the light spot 310 is still aligned with the center after the test block 600 moves.

[0165] S405, based on the fact that the spot 310 of the laser 300 emitted by the laser 601 is located at the center of the test block 600, the test block 600 is moved a second distance away from the laser 601 to the first position, and it is determined again whether the spot 310 of the laser 300 emitted by the laser 601 is located at the center of the test block 600.

[0166] By repeating the alignment process, the stability of the laser 601 and the accuracy of the alignment can be verified.

[0167] S406 , based on the spot 310 of the laser 300 emitted by the laser 601 being located at the center of the test block 600 again, the filler wire 200 is moved toward the center of the test block 600 , and it is determined whether the projection of the filler wire 200 on the test block 600 coincides with the center of the test block 600 .

[0168] The concentricity between the filling wire 200 and the light spot 310 is checked by the projection of the filling wire 200 , so as to ensure that the filling wire 200 is located at the center of the laser 300 irradiation.

[0169] S407 , based on the projection of the filler wire 200 on the test block 600 coinciding with the center of the test block 600 , determining that the spot 310 of the laser 300 emitted by the laser 601 is concentric with the filler wire 200 .

[0170] By finally confirming the concentricity between the filler wire 200 and the light spot 310 , it can be ensured that the energy of the laser 300 is effectively transferred to the filler wire 200 .

[0171] As an alternative implementation, see Fig.19 , the method further comprises:

[0172] S408, based on the spot 310 of the laser 300 emitted by the laser 601 being concentric with the filling metal wire 200, the laser 601 emits the laser 300 toward a test metal plate (not shown), wherein the distance between the test metal plate and the laser 601 is equal to the distance between the bottom of the deposition hole 30 and the laser 601.

[0173] By using a test metal plate at the same distance from the deposition hole 30 to simulate actual processing conditions, it can be ensured that the positioning of the laser 601 in actual work and the quality of the light spot 310 are consistent with those under test conditions.

[0174] S409 , based on the fact that the spot 310 of the laser 300 emitted by the laser 601 toward the test metal plate meets the standard, it is determined that the position of the laser 601 is qualified.

[0175] Among them, if the position and quality of the light spot 310 on the test metal plate meet the predetermined standards, this indicates that the position of the laser 601 is correct, which can ensure that the laser 601 can accurately irradiate the filling metal wire 200 and the deposition hole 30 during the actual deposition process. This step is the final confirmation of the positioning of the laser 601, ensuring the accuracy and repeatability of the laser 300 processing process.

[0176] As an alternative implementation, see Fig. 20 Based on the fact that the spot 310 of the laser 300 emitted by the laser 601 toward the test metal plate meets the standard, the step of determining whether the position of the laser 601 is qualified includes:

[0177] S4091A, see Fig.21 , detecting the color of the spot 310 of the laser 300 emitted by the laser 601 toward the test metal plate.

[0178] S4092A, based on the color of the spot 310 of the laser light 300 emitted by the laser 601 toward the test metal plate, determine whether the spot 310 of the laser light 300 emitted by the laser 601 toward the test metal plate meets the standard.

[0179] S4093A, based on the fact that the spot 310 of the laser 300 emitted by the laser 601 toward the test metal plate meets the standard, it is determined that the position of the laser 601 is qualified.

[0180] The color of the light spot 310 that meets the standard is in the orange-yellow range.

[0181] In the above steps, color detection is part of quality control to ensure accuracy and consistency during laser 300 processing and avoid processing defects; by detecting the color of the light spot 310, it can be ensured that the laser 601 is accurately aligned with the filler wire 200.

[0182] As an alternative implementation, see Fig. 22 Based on the fact that the spot 310 of the laser 300 emitted by the laser 601 toward the test metal plate meets the standard, the step of determining whether the position of the laser 601 is qualified includes:

[0183] S4091B, detecting the shape of the spot 310 of the laser 300 emitted by the laser 601 toward the test metal plate.

[0184] S4092B, based on the shape of the spot 310 of the laser light 300 emitted by the laser 601 toward the test metal plate, determine whether the spot 310 of the laser light 300 emitted by the laser 601 toward the test metal plate meets the standard.

[0185] S4093B, based on the fact that the spot 310 of the laser 300 emitted by the laser 601 toward the test metal plate meets the standard, it is determined that the position of the laser 601 is qualified.

[0186] The light spot 310 that meets the standard has a ring structure and is evenly distributed.

[0187] In the above steps, shape detection is part of quality control to ensure accuracy and consistency during laser 300 processing and avoid processing defects; by detecting the shape of the light spot 310, it can be ensured that the laser 601 is accurately aligned with the filler wire 200.

[0188] As an alternative implementation, see Fig.23 Based on the compliance of the laser 300 emitted by the laser 601 toward the test metal plate, the step of determining whether the position of the laser 601 is qualified includes:

[0189] S4091C, detecting the size of the spot 310 of the laser 300 emitted by the laser 601 toward the test metal plate.

[0190] S4092C, based on the size of the spot 310 of the laser light 300 emitted by the laser 601 toward the test metal plate, determine whether the spot 310 of the laser light 300 emitted by the laser 601 toward the test metal plate meets the standard.

[0191] S4093C, based on the fact that the spot 310 of the laser 300 emitted by the laser 601 toward the test metal plate meets the standard, it is determined that the position of the laser 601 is qualified.

[0192] The diameter of the light spot 310 that meets the standard ranges from 1 mm to 2 mm. During the measurement, the inner ring and the outer ring of the light spot 310 are measured and the average is taken, and the measurement is performed at least three times.

[0193] In the above steps, the size detection is part of the quality control to ensure the accuracy and consistency of the laser 300 processing process and avoid processing defects; by detecting the size of the spot 310, it can be ensured that the laser 601 is accurately aligned with the filler wire 200.

[0194] Second, see Figures 3 to 5The present application discloses a composite metal frame 700, comprising a first metal layer 10 and a second metal layer 20 which are stacked together. The composite metal frame 700 also comprises a deposition hole 30, which is formed from the surface of the first metal layer 10 to the second metal layer 20. The deposition hole 30 comprises a main hole section 31 and a receiving hole section 32 which are connected to each other. The main hole section 31 is located on one side of the first metal layer 10, and the receiving hole section 32 is at least partially received in the second metal layer 20. The aperture of at least part of the receiving hole section 32 is larger than the aperture of the main hole section 31. The inner wall of the deposition hole 30 is tightly fitted with a filling body 40, and the filling body 40 and the second metal layer 20 corresponding to the filling body 40 are provided with an installation hole 41, and the second metal layer 20 and the filling body 40 are exposed from the inner wall of the installation hole 41.

[0195] The material of the first metal layer 10 includes aluminum alloy, the material of the second metal layer 20 includes titanium or titanium alloy, and the material of the filler 40 includes titanium.

[0196] In a third aspect, the present application discloses an electronic device, including the composite metal frame 700. The electronic device may be, but is not limited to, a mobile phone, a tablet computer, a laptop computer, a smart watch, a monitor, and the like.

[0197] It is obvious to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present application.

[0198] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the preferred embodiments, a person of ordinary skill in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. A method for processing a composite metal frame, characterized in that: include: Providing a metal composite substrate, the metal composite substrate comprising a first metal layer and a second metal layer laminated together; A deposition hole is formed from the surface of the first metal layer to the inside of the metal composite substrate, wherein the deposition hole includes a main hole section and a receiving hole section connected to each other, wherein the main hole section is located on one side of the first metal layer, and the receiving hole section is at least partially received in the second metal layer, and the aperture of at least part of the receiving hole section is larger than the aperture of the main hole section; Depositing molten filler metal in the deposition hole and solidifying it to form a filler body, so that the filler body is closely fitted to the inner wall of the main body hole section; A portion of the filling body and the second metal layer corresponding to the filling body are removed to form a mounting hole, and the second metal layer and the filling body are exposed from the inner wall of the mounting hole.

2. The method for processing a composite metal frame according to claim 1, characterized in that: The step of forming a deposition hole from the surface of the first metal layer to the interior of the metal composite substrate comprises: Using a first tool to open a hole from the first metal layer to the second metal layer to form the main body hole section; A second tool is used to drill a hole from the bottom of the main body hole section toward the second metal layer to form the receiving hole section, and the receiving hole section extends into the second metal layer.

3. The method for processing a composite metal frame according to claim 2, characterized in that: The aperture of the accommodating hole segment increases from an end connected to the main body hole segment to an end away from the main body hole segment.

4. The method for processing a composite metal frame according to claim 1, characterized in that: The step of depositing molten filler metal in the deposition hole and solidifying to form a filler body comprises: Extending a filling metal wire into the deposition hole, and arranging the filling metal wire coaxially with the deposition hole; The filling metal wire is irradiated with a laser whose spot coincides with the center of the deposition hole, so that the filling metal wire is melted and filled in the deposition hole to form the filling body.

5. The method for processing a composite metal frame according to claim 4, characterized in that: The processing method of the composite metal frame also includes: Taking pictures to obtain an image of the deposition hole; Determining the position of the light spot on the image and the position of the center of the deposition hole; Based on the position of the light spot and the position of the center of the deposition hole being within a preset error range, it is determined that the light spot coincides with the center of the deposition hole.

6. The method for processing a composite metal frame according to claim 4, characterized in that: Before the step of extending the filling metal wire into the deposition hole, the method further comprises: Using a wire straightening device to adjust the straightness of the filler wire; A detection device is used to detect the straightness of the adjusted filling metal wire.

7. The method for processing a composite metal frame according to claim 6, characterized in that: The wire straightening device comprises a driving wheel assembly and an adjustment assembly arranged side by side, the driving wheel assembly comprises n driving wheels arranged at intervals, the adjustment assembly comprises (n-1) adjustment members arranged at intervals, the n driving wheels and the (n-1) adjustment members are arranged alternately, and the step of using the wire straightening device to adjust the straightness of the filler metal wire comprises: causing the filler wire to abut against the n moving wheels, wherein the filler wire comprises a first end and a second end opposite to each other; Make the adjusting member corresponding to the first end among the (n-1) adjusting members move toward the moving wheel assembly and abut against the first end, so that the second end moves a first distance in a first direction; Make another one of the (n-1) adjusting members move toward the moving wheel assembly and abut against the filling wire, so that the second end moves the first distance in a second direction opposite to the first direction; The remaining adjusting members among the (n-1) adjusting members are moved toward the moving wheel assembly and abut against the filler wire to adjust the straightness of the filler wire.

8. The method for processing a composite metal frame according to claim 6, characterized in that: The detection device comprises a detection block, and a detection hole is formed on the detection block. The step of using the detection device to detect the straightness of the adjusted filling metal wire comprises: Passing the filler wire through the detection hole of the detection block multiple times; Based on the fact that the filling metal wire does not contact the hole wall of the detection hole, it is confirmed that the straightness of the filling metal wire meets the standard.

9. The method for processing a composite metal frame according to claim 8, characterized in that: The laser is connected to the filler wire, and after confirming that the straightness of the filler wire meets the standard, the method further includes: placing a test block in a first position; causing the laser to emit laser light toward the center of the test block; Based on the fact that the spot of the laser light emitted by the laser is located at the center of the test block, the test block is moved toward the laser by a second distance to a second position; Determining whether the spot of the laser light emitted by the laser is located at the center of the test block; Based on the fact that the spot of the laser light emitted by the laser is located at the center of the test block, the test block is moved away from the laser by the second distance to the first position, and it is determined again whether the spot of the laser light emitted by the laser is located at the center of the test block; Based on the spot of the laser light emitted by the laser being located at the center of the test block again, the filler wire is moved toward the center of the test block, and it is determined whether the projection of the filler wire on the test block coincides with the center of the test block; Based on the projection of the filling wire on the test block coinciding with the center of the test block, it is determined that the spot of the laser light emitted by the laser is concentric with the filling wire.

10. The method for processing a composite metal frame according to claim 9, characterized in that: The method further comprises: Based on the fact that the spot of the laser light emitted by the laser is concentric with the filling metal wire, the laser is caused to emit the laser light toward the test metal plate, wherein the distance between the test metal plate and the laser is equal to the distance between the bottom of the deposition hole and the laser; Based on the fact that the spot of the laser light emitted by the laser toward the test metal plate meets the standard, it is determined that the position of the laser is qualified.

11. The method for processing a composite metal frame according to claim 10, characterized in that: The step of determining that the position of the laser is qualified based on that the spot of the laser emitted by the laser toward the test metal plate meets the standard comprises: Detecting the color of the laser spot emitted by the laser toward the test metal plate; determining whether the spot of the laser light emitted by the laser toward the test metal plate meets the standard based on the color of the spot of the laser light emitted by the laser toward the test metal plate; Based on the fact that the spot of the laser light emitted by the laser toward the test metal plate meets the standard, it is determined that the position of the laser is qualified.

12. The method for processing a composite metal frame according to claim 10, characterized in that: The step of determining that the position of the laser is qualified based on that the spot of the laser emitted by the laser toward the test metal plate meets the standard comprises: detecting the shape of the spot of the laser emitted by the laser toward the test metal plate; determining whether the spot of the laser light emitted by the laser toward the test metal plate meets the standard based on the shape of the spot of the laser light emitted by the laser toward the test metal plate; Based on the fact that the spot of the laser light emitted by the laser toward the test metal plate meets the standard, it is determined that the position of the laser is qualified.

13. The method for processing a composite metal frame according to claim 10, characterized in that: The step of determining whether the position of the laser is qualified based on the compliance standard of the laser emitted by the laser toward the test metal plate comprises: detecting the size of the spot of the laser emitted by the laser toward the test metal plate; determining whether the spot of the laser light emitted by the laser toward the test metal plate meets the standard based on the size of the spot of the laser light emitted by the laser toward the test metal plate; Based on the fact that the spot of the laser light emitted by the laser toward the test metal plate meets the standard, it is determined that the position of the laser is qualified.

14. A composite metal frame, characterized in that: It includes a first metal layer and a second metal layer stacked together, and the composite metal frame also includes a deposition hole, which is formed from the surface of the first metal layer to the inside of the metal composite substrate. The deposition hole includes a main hole section and a receiving hole section that are connected to each other. The main hole section is located on one side of the first metal layer, and the receiving hole section is at least partially received in the second metal layer. The aperture of at least part of the receiving hole section is larger than the aperture of the main hole section. A filling body is tightly fitted on the inner wall of the deposition hole, and a mounting hole is opened on the filling body and the second metal layer corresponding to the filling body, and the second metal layer and the filling body are exposed from the inner wall of the mounting hole.

15. The composite metal frame according to claim 14, characterized in that: The material of the first metal layer includes aluminum alloy, the material of the second metal layer includes titanium or titanium alloy, and the material of the filler includes titanium.

16. An electronic device, characterized in that: Comprising the composite metal frame as described in claim 14.

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