Manufacturing process of silver alloy wire for IC (integrated circuit)

Abstract

The invention relates to the technical field of manufacturing of silver alloy wires for ICs, in particular to a manufacturing process of the silver alloy wires for the ICs, which comprises the steps that a clamping mechanism is arranged on the upper side of a detection table, and a bending mechanism, a stretching mechanism and a twisting mechanism are arranged on the clamping mechanism; the lower end of a to-be-detected silver alloy wire can be synchronously and stably clamped through a lower clamping assembly in the clamping mechanism, meanwhile, the upper end of the corresponding silver alloy wire can be clamped and fixed through an upper clamping assembly in the clamping mechanism, and the upper end of the corresponding silver alloy wire can be synchronously connected with a corresponding bending mechanism, a stretching mechanism or a twisting mechanism in a positioning mode; according to the invention, the driving mechanism is synchronously matched and linked with the bending mechanism, the stretching mechanism and the torsion mechanism, so that multiple mechanical properties such as bending resistance, stretching resistance and torsion resistance of the silver alloy wire can be synchronously detected; according to the invention, a single driving source is used for driving, so that the detection of various mechanical properties such as bending resistance, stretching resistance and torsion resistance of the silver alloy wire can be realized.

Description

Technical Field

[0001] The present invention relates to the technical field of manufacturing silver alloy wires for ICs, and in particular to a manufacturing process of silver alloy wires for ICs. Background Art

[0002] IC is generally the abbreviation of integrated circuit. In integrated circuit packaging, gold wire is the most commonly used material, but due to the high price of gold, silver alloy wire with good conductivity and low cost is generally used as an alternative. Silver alloy wire is generally made of an alloy composed of silver and a small amount of other metal elements. In the prior art, after the silver alloy wire is manufactured, it is generally necessary to test its mechanical properties such as anti-twisting, anti-stretching and anti-bending to ensure the quality of the product.

[0003] However, the traditional method of testing the mechanical properties of silver alloy wire has the following defects: 1. In the prior art, when testing the various mechanical properties of silver alloy wire, it is generally necessary to use different testing equipment to provide corresponding testing conditions, which results in a large number of testing equipment required to test the different mechanical properties of silver alloy wire, the overall equipment occupies a large space, and the overall operation steps of the test are relatively cumbersome; 2. In the prior art, the testing equipment corresponding to the various mechanical properties of silver alloy wire generally needs to be controlled by different driving sources. This operation method not only leads to high overall use and maintenance costs of the testing equipment, but also leads to poor continuity and low efficiency in the overall operation process of the mechanical property testing of the silver alloy wire. Summary of the invention

[0004] To achieve the above object, the present invention provides the following technical solution: a process for manufacturing a silver alloy wire for IC, the process for manufacturing a silver alloy wire for IC comprising the following steps:

[0005] Step 1: Melting: Mix pure silver with the remaining alloy and melt the mixture at high temperature into a homogeneous alloy.

[0006] Step 2: Casting: Using continuous casting technology, the molten silver alloy is passed through a mold to form a rod.

[0007] Step 3: Cold drawing: The bar is further refined through the cold drawing process. During the cold drawing process, the cast bar is passed through a series of progressively smaller dies to gradually reduce the diameter of the bar and increase its length.

[0008] Step 4: Annealing: The cold-drawn silver alloy wire is annealed to restore the ductility of the silver alloy wire and reduce its internal stress.

[0009] Step 5: Cleaning: Clean the annealed silver alloy wire to remove the oxide layer and other impurities on its surface.

[0010] Step 6. Inspection: Perform appearance inspection and mechanical property test on the finished silver alloy wire to ensure that the wire meets the quality standards.

[0011] In the above step six, a testing device is used to perform mechanical property testing on the silver alloy wire for IC, wherein the testing device includes a testing table, a clamping mechanism is arranged on the upper side of the testing table, a driving mechanism is arranged on the upper side of the clamping mechanism, and a bending mechanism, a stretching mechanism and a torsion mechanism are arranged on the clamping mechanism from left to right.

[0012] The clamping mechanism comprises a lower clamping assembly and an upper clamping assembly; the lower clamping assembly is arranged on the upper side of the detection platform, and the upper clamping assembly is arranged above the lower clamping assembly.

[0013] The lower clamping assembly includes a fixing part 1 and a fixing part 2; one fixing part 1 and two fixing parts 2 are evenly fixedly arranged on the upper side of the detection platform from left to right.

[0014] The upper clamping assembly includes an L-shaped clamping seat and a fixing member three; a movable L-shaped clamping seat is arranged above the fixing member one and the fixing member two, and the fixing member three is fixedly arranged at the rear end of the horizontal section of the L-shaped clamping seat.

[0015] The driving mechanism comprises a driving frame, a hydraulic cylinder and a linkage assembly; the driving frame is fixedly arranged on the upper side of the detection platform, the hydraulic cylinder is fixedly arranged on the upper surface of the driving frame, and the linkage assembly is arranged at the telescopic end of the hydraulic cylinder.

[0016] The bending mechanism comprises an alignment component and a swing component; the alignment component is arranged on the L-shaped clamping seat above the first fixing member, and the swing component is arranged on the rear side of the alignment component.

[0017] The stretching mechanism includes a linkage sleeve, an adjusting block and a fixed sleeve; a linkage sleeve that moves up and down is arranged above the fixing member 2 adjacent to the right side of the fixing member 1, the linkage sleeve is fixedly connected to the connecting plate 2 through the upper rod member 4, an adjusting block that is slidably connected to the linkage sleeve is fixedly arranged on the upper surface of the L-shaped clamping seat located on the lower side of the linkage sleeve, a fixed sleeve that is fixedly connected to the detection table through the plate member 1 is arranged on the left side of the linkage sleeve, and the fixed sleeve is slidably matched with the adjusting block.

[0018] The torsion mechanism includes a driven component and a docking component; wherein the driven component is arranged above the second fixing member on the far right, and the docking component is arranged on the front side of the driven component.

[0019] Preferably, the clamping mechanism further comprises an electric push rod and a connecting plate; the front side of the detection platform is fixedly provided with an electric push rod via a plate member, and the telescopic end of the electric push rod is fixedly provided with a connecting plate member.

[0020] The bending mechanism also includes a placement hole, a rotating frame and a stabilizing sleeve; a placement hole is provided on the upper surface of the L-shaped clamping seat located above the fixing member 1, a rotating frame is fixedly provided at the lower end of the fixing member 3 located above the fixing member 1, and a stabilizing sleeve is fixedly provided on the front side of the rotating frame.

[0021] The stretching mechanism also includes a socket and an insertion rod. The front side of the linkage sleeve is fixedly provided with a socket, and the insertion rod is slidably inserted in the socket.

[0022] Preferably, the lower clamping assembly includes a clamping member 1, an arc block and a clamping member 2; a clamping member 1 is slidably provided on the front side of the fixing member 1 through a left-right symmetrical guide rod 1, the clamping member 1 is fixedly connected to a connecting plate 1 on the front side through a rod member 1, arc blocks are fixedly provided on the upper sides of the fixing member 1 and the clamping member 1 symmetrically, a clamping member 2 is slidably provided on the front sides of the two fixing members 2 through a guide rod 2, and the clamping members 2 are fixedly connected to a connecting plate 1 on the front side through a rod member 2.

[0023] Preferably, the upper clamping assembly includes a U-shaped frame, a threaded rod, a rotating disk, a clamping piece three, a driven rod and a driven plate; a U-shaped frame is fixedly provided on the front side of the vertical section of the L-shaped clamping seat, a threaded rod is connected to the internal thread of the front surface of the U-shaped frame, a rotating disk is fixedly provided on the front end of the threaded rod, a clamping piece three is slidably provided on the front side of the fixing piece three through a guide rod three, a driven rod slidably connected to the vertical section of the L-shaped clamping seat is fixedly provided on the front side of the clamping piece three, the front end of the driven rod is rotatably connected to the rear end of the threaded rod, a driven plate is fixedly provided on the front end of the driven rod, wherein the driven plate located on the front side of the connecting sleeve is fixedly connected to the front end of the insertion rod one.

[0024] Preferably, the linkage assembly includes a connecting plate 2, a driving ring, a driving shaft, an L-shaped connecting frame and a rack; the telescopic end of the hydraulic cylinder is fixedly provided with a connecting plate 2, the right end of the connecting plate 2 is fixedly provided with a driving ring, the inner surface of the driving ring is fixedly provided with a driving shaft, the left end of the connecting plate 2 is fixedly provided with an L-shaped connecting frame, and the lower end of the vertical section of the L-shaped connecting frame is fixedly provided with a rack slidably connected to the surface of the detection platform.

[0025] Preferably, the alignment assembly includes a return frame, a sliding sleeve, a slider, a connecting rod, a rotating shaft and a clamping shaft; a return frame is fixedly provided on the rear side of the driven plate located above the fixing member, a sliding sleeve is fixedly provided on the lower end of the rotating frame, a slider is slidably provided in the sliding sleeve, a connecting rod 1 is fixedly provided on the upper surface of the slider for sliding connection with the upper surface of the sliding sleeve, the upper end of the connecting rod 1 is fixedly connected to the rear end of the return frame, a rotating shaft slidably connected to the rear surface of the sliding sleeve is fixedly provided on the rear side of the slider, and a clamping shaft is fixedly provided on the rear end of the rotating shaft.

[0026] Preferably, the swing assembly includes a support seat, a positioning sleeve, a positioning groove, a cam, a docking groove, a connecting shaft one, a gear, a connecting shaft two and a connecting rod two; a support seat is fixedly provided on the upper surface of the detection platform at the rear side of the sliding sleeve, a positioning sleeve is fixedly provided at the upper left corner of the support seat, a positioning groove that slides with the clamping shaft is provided in the positioning sleeve, a cam is rotatably provided at the rear end of the positioning sleeve, a docking groove that slides with the clamping shaft is provided on the cam, a connecting shaft one is fixedly provided on the upper end of the rear surface of the cam, a gear that meshes with the rack for transmission is rotatably provided at the upper right corner of the support seat through a rod three, a connecting shaft two is eccentrically fixedly provided on the rear surface of the gear, and a connecting rod two is provided on the surface of the connecting shaft two and the connecting shaft one for transmission together.

[0027] Preferably, the driven assembly includes a driven column, a spiral groove, a rotating sleeve and a sleeve shaft; a driven column slidably connected to the driving ring is rotatably arranged on the right side of the driving frame, a spiral groove slidably matched with the driving shaft is opened on the surface of the driven column, a rotating sleeve is fixedly arranged on the lower end of the driven column, and a sleeve shaft rotatably connected to the rotating sleeve is fixedly arranged on the upper surface of the L-shaped clamping seat located on the lower side of the rotating sleeve.

[0028] Preferably, the docking assembly includes socket two, plug rod two and socket three; socket two is fixedly provided on the front side of the rotating sleeve, plug rod two which is plugged into and matched with socket two is fixedly provided on the upper end of the driven plate located on the front side of the rotating sleeve, and socket three which is plugged into and matched with plug rod two is fixedly provided on the driving frame at the front side of plug rod two through L-shaped rod five.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. The present invention can synchronously and stably clamp the lower end of the silver alloy wire to be tested through the lower clamping assembly in the clamping mechanism, and at the same time, the upper clamping assembly in the clamping mechanism can not only clamp and fix the upper end of the corresponding silver alloy wire, but also synchronously position and connect it with the corresponding bending mechanism, stretching mechanism or torsion mechanism, so as to facilitate the subsequent performance testing of each silver alloy wire to be tested, thereby ensuring the overall fixed installation of the silver alloy wire and the efficiency of mechanical performance testing.

[0031] 2. The present invention realizes the synchronous detection of multiple mechanical properties of the silver alloy wire, such as anti-bending, anti-stretching and anti-torsion, by synchronously coordinating and linking the driving mechanism with the bending mechanism, the stretching mechanism and the torsion mechanism. Therefore, not only can the detection conditions of multiple mechanical properties of the silver alloy wire be met by the same device, but also the overall operation steps and required detection equipment of the mechanical properties of the silver alloy wire can be reduced, thereby reducing the space cost required for the detection equipment as a whole and improving the efficiency of the overall detection of the mechanical properties of the silver alloy wire.

[0032] 3. The present invention can realize the detection of various mechanical properties of silver alloy wire, such as anti-bending, anti-stretching and anti-torsion, by driving with a single driving source. This operation mode not only improves the continuity between various detection operation processes, but also reduces the overall use and maintenance cost of the detection equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a process flow chart for manufacturing silver alloy wire for IC.

[0034] Figure 2 It is a schematic diagram of the structure of the present invention.

[0035] Figure 3 Schematic diagram of the torsion mechanism structure.

[0036] Figure 4 It is a schematic diagram of the stretching mechanism structure.

[0037] Figure 5 for Figure 4 Enlarged structural diagram at A in the middle.

[0038] Figure 6 It is a schematic diagram of the bending mechanism structure.

[0039] Figure 7 It is a schematic diagram of the side cross-sectional structure of the bending mechanism.

[0040] Figure 8 for Figure 7 Enlarged schematic diagram of point B in the middle.

[0041] In the figure: 1, test bench; 2, clamping mechanism; 21, electric push rod; 22, connecting plate 1; 23, lower clamping assembly; 231, fixing piece 1; 232, clamping piece 1; 233, arc block; 234, fixing piece 2; 235, clamping piece 2; 24, upper clamping assembly; 241, L-shaped clamping seat; 242, U-shaped frame; 243, threaded rod; 244, rotating disk; 245, fixing piece 3; 246, clamping piece 3; 247, driven rod; 248, driven plate; 3, driving mechanism; 31, driving frame; 32, hydraulic cylinder; 33, linkage assembly; 331, connecting plate 2; 332, driving ring; 333, driving shaft; 334, L-shaped connecting frame; 335, rack; 4, bending mechanism; 41, placement hole; 42, rotating frame; 43, stable Fixed sleeve; 44, alignment assembly; 441, return frame; 442, sliding sleeve; 443, slider; 444, connecting rod one; 445, rotating shaft; 446, clamping shaft; 45, swing assembly; 451, support seat; 452, positioning sleeve; 453, positioning groove; 454, cam; 455, docking groove; 456, connecting shaft one; 457, gear; 458, connecting shaft two; 459, connecting rod two; 5, stretching mechanism; 51, linkage sleeve; 52, socket one; 53, plug rod one; 54, adjusting block; 55, fixed sleeve; 6, torsion mechanism; 61, driven assembly; 611, driven column; 612, spiral groove; 613, rotating sleeve; 614, sleeve shaft; 62, docking assembly; 621, socket two; 622, plug rod two; 623, socket three. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] See also Figure 1 The present invention provides a technical solution: a manufacturing process of a silver alloy wire for IC, the manufacturing process of a silver alloy wire for IC comprising the following steps:

[0044] Step 1: Melting: Mix pure silver with the remaining alloy and melt the mixture at high temperature into a homogeneous alloy.

[0045] Step 2: Casting: Using continuous casting technology, the molten silver alloy is passed through a mold to form a rod.

[0046] Step 3: Cold drawing: The bar is further refined through the cold drawing process. During the cold drawing process, the cast bar is passed through a series of progressively smaller dies to gradually reduce the diameter of the bar and increase its length.

[0047] Step 4: Annealing: The cold-drawn silver alloy wire is annealed to restore the ductility of the silver alloy wire and reduce its internal stress.

[0048] Step 5: Cleaning: Clean the annealed silver alloy wire to remove the oxide layer and other impurities on its surface.

[0049] Step 6. Inspection: Perform appearance inspection and mechanical property test on the finished silver alloy wire to ensure that the wire meets the quality standards.

[0050] See also Figure 2 In the above step six, a testing device is used to perform mechanical property testing on the silver alloy wire for IC, and the testing device includes a testing platform 1, a clamping mechanism 2, a driving mechanism 3, a bending mechanism 4, a stretching mechanism 5 and a twisting mechanism 6. The clamping mechanism 2 is arranged on the upper side of the testing platform 1, and the driving mechanism 3 is arranged on the upper side of the clamping mechanism 2. The bending mechanism 4, the stretching mechanism 5 and the twisting mechanism 6 are arranged on the clamping mechanism 2 from left to right.

[0051] See also Figure 2 and Figure 4 The clamping mechanism 2 includes an electric push rod 21, a connecting plate 22, a lower clamping assembly 23 and an upper clamping assembly 24; the front side of the detection platform 1 is fixedly provided with an electric push rod 21 through a plate 1, and the telescopic end of the electric push rod 21 is fixedly provided with a connecting plate 22, and the upper side of the detection platform 1 is located on the rear side of the connecting plate 22 and the lower clamping assembly 23 is provided, and the upper clamping assembly 24 is provided above the lower clamping assembly 23.

[0052] See also Figure 4 and Figure 7 The lower clamping assembly 23 includes a fixing member 231, a clamping member 232, an arc block 233, a fixing member 234 and a clamping member 235; a fixing member 231 and two fixing members 234 are evenly fixedly arranged on the upper side of the detection platform 1 from left to right, and a clamping member 232 is slidably arranged on the front side of the fixing member 231 through a left-right symmetrical guide rod 1, and the clamping member 232 is fixedly connected to the front connecting plate 22 through a rod 1, and the upper sides of the fixing member 231 and the clamping member 232 are both symmetrically fixedly arranged with an arc block 233, and the front sides of the two fixing members 234 are both slidably arranged with a clamping member 235 through a guide rod 2, and the clamping members 235 are fixedly connected to the front connecting plate 22 through a rod 2.

[0053] When the lower ends of the silver alloy wires to be tested need to be clamped and fixed, first place the lower ends of the silver alloy wires in front of the corresponding fixing members 231 and 234, and then drive the electric push rod 21 to drive the clamping member 232 and the two clamping members 235 to move backward synchronously by driving the connecting plate 22 backward until the lower ends of the corresponding silver alloy wires are clamped and fixed.

[0054] See also Figure 3 , Figure 5 and Figure 6 The upper clamping assembly 24 includes an L-shaped clamping seat 241, a U-shaped frame 242, a threaded rod 243, a rotating disk 244, a fixing member 3 245, a clamping member 3 246, a driven rod 247 and a driven plate 248; a movable L-shaped clamping seat 241 is arranged above the fixing member 1 231 and the fixing member 2 234, a U-shaped frame 242 is fixedly arranged on the front side of the vertical section of the L-shaped clamping seat 241, and a threaded rod 243 is connected to the inner thread of the front surface of the U-shaped frame 242, and the threaded rod A rotating disk 244 is fixedly provided at the front end of 243, a fixing part 3 245 is fixedly provided at the rear end of the horizontal section of the L-shaped clamping seat 241, a clamping part 3 246 is slidably provided on the front side of the fixing part 3 245 through a guide rod 3, a follower rod 247 slidably connected to the vertical section of the L-shaped clamping seat 241 is fixedly provided on the front side of the clamping part 3 246, the front end of the follower rod 247 is rotatably connected to the rear end of the threaded rod 243, and a follower plate 248 is fixedly provided at the front end of the follower rod 247.

[0055] When the upper end of each silver alloy wire to be tested is to be clamped and fixed, the upper end of each silver alloy wire is first placed on the front side of the corresponding fixing part three 245, and then the threaded rod 243 and the U-shaped frame 242 are spirally transmitted by rotating the rotating disk 244, thereby driving the driven rod 247 and the clamping part three 246 to move backward until the upper end of the corresponding silver alloy wire is clamped and fixed. This operation method can not only clamp and fix the upper end of the corresponding silver alloy wire, but also synchronously position and connect it with the corresponding bending mechanism 4, stretching mechanism 5 or torsion mechanism 6, so as to facilitate the subsequent performance testing of each silver alloy wire to be tested, thereby ensuring the efficiency of the overall fixed installation of the silver alloy wire and the mechanical performance testing.

[0056] See also Figure 2 , Figure 3 and Figure 6The driving mechanism 3 includes a driving frame 31, a hydraulic cylinder 32 and a linkage assembly 33; the driving frame 31 is fixedly provided on the upper side of the detection platform 1, the hydraulic cylinder 32 is fixedly provided on the upper surface of the driving frame 31, and the linkage assembly 33 is provided at the telescopic end of the hydraulic cylinder 32; the linkage assembly 33 includes a connecting plate 2 331, a driving ring 332, a driving shaft 333, an L-shaped connecting frame 334 and a rack 335; the telescopic end of the hydraulic cylinder 32 is fixedly provided with a connecting plate 2 331, the right end of the connecting plate 2 331 is fixedly provided with a driving ring 332, the inner surface of the driving ring 332 is fixedly provided with a driving shaft 333, the left end of the connecting plate 2 331 is fixedly provided with an L-shaped connecting frame 334, and the lower end of the vertical section of the L-shaped connecting frame 334 is fixedly provided with a rack 335 which is slidably connected to the surface of the detection platform 1.

[0057] See also Figure 6 The bending mechanism 4 includes a placement hole 41, a rotating frame 42, a stabilizing sleeve 43, an alignment component 44 and a swinging component 45; a placement hole 41 is provided on the upper surface of the L-shaped clamping seat 241 located above the fixing member 231, a rotating frame 42 is fixedly provided at the lower end of the fixing member 3 245 located above the fixing member 231, a stabilizing sleeve 43 is fixedly provided on the front side of the rotating frame 42, an alignment component 44 is provided on the rotating frame 42, and a swinging component 45 is provided on the rear side of the alignment component 44.

[0058] See also Figure 6 , Figure 7 and Figure 8 The alignment component 44 includes a return frame 441, a sliding sleeve 442, a slider 443, a connecting rod 444, a rotating shaft 445 and a clamping shaft 446; a return frame 441 is fixedly provided on the rear side of the driven plate 248 located above the fixed member 231, a sliding sleeve 442 is fixedly provided on the lower end of the rotating frame 42, a slider 443 is slidably provided in the sliding sleeve 442, a connecting rod 444 slidably connected to the upper surface of the sliding sleeve 442 is fixedly provided on the upper surface of the sliding sleeve 442, the upper end of the connecting rod 444 is fixedly connected to the rear end of the return frame 441, a rotating shaft 445 slidably connected to the rear surface of the sliding sleeve 442 is fixedly provided on the rear side of the slider 443, and a clamping shaft 446 is fixedly provided on the rear end of the rotating shaft 445.

[0059] See also Figure 6 and Figure 8The swing assembly 45 includes a support seat 451, a positioning sleeve 452, a positioning groove 453, a cam 454, a docking groove 455, a connecting shaft 1 456, a gear 457, a connecting shaft 2 458 and a connecting rod 2 459; the upper surface of the detection platform 1 is fixedly provided with a support seat 451 at the rear side of the sliding sleeve 442, and a positioning sleeve 452 is fixedly provided at the upper left corner of the support seat 451. A positioning groove 453 that slides with the clamping shaft 446 is opened in the positioning sleeve 452. The positioning sleeve 45 2 is rotatably provided with a cam 454, and the cam 454 is provided with a docking groove 455 that slides with the clamping shaft 446. A connecting shaft 1 456 is fixedly provided on the upper end of the rear surface of the cam 454. A gear 457 that meshes with the rack 335 is rotatably provided at the upper right corner of the support seat 451 through a rod 3, and a connecting shaft 2 458 is eccentrically fixedly provided on the rear surface of the gear 457. A connecting rod 2 459 is provided on the surface of the connecting shaft 2 458 and the connecting shaft 1 456 for common transmission.

[0060] When the performance of the silver alloy wire in withstanding plastic deformation during repeated bending is to be tested, the silver alloy wire is first placed from the placement hole 41 into the corresponding fixing part three 245 and the front side of the fixing part one 231 and the stabilizing sleeve 43, and then the lower end of the silver alloy wire is clamped and fixed by the clamping part one 232 through the electric push rod 21, and then the rotating disk 244 is rotated to make the threaded rod 243 drive the driven rod 247 and the clamping part three 246 to move backward a specific distance and clamp the upper end of the silver alloy wire. At the same time, the driven plate 248 that moves backward with the driven rod 247 drives the return frame 441 and the connecting rod one 444 to move backward a specific distance synchronously, the slider 443 moves backward with the connecting rod one 444 and drives the rotating shaft 445 and the clamping shaft 446 to move backward a specific distance synchronously, the rotating shaft 445 slides into the positioning groove 453 and rotates with the positioning groove 453, and the clamping shaft 446 slides from the positioning groove 453 to the docking groove 4 55, at this time, the hydraulic cylinder 32 can be used to drive the L-shaped connecting frame 334 and the rack 335 to move upward, and the rack 335 can then drive the gear 457 to rotate through meshing transmission, and the gear 457 can then drive the second connecting shaft 458 to rotate around the rotation axis of the gear 457, and the second connecting shaft 458 can then drive the first connecting shaft 456 and the upper end of the cam 454 to reciprocate at a fixed angle around the axis of the positioning sleeve 452 through the second connecting rod 459, so that the cam 454 drives the slider 443 and the sliding sleeve 442 to reciprocate at a fixed angle synchronously through the clamping shaft 446, and the sliding sleeve 442 drives the lower end of the rotating frame 42 to reciprocate, and the rotating frame 42 can then drive the upper section of the silver alloy wire to reciprocate along the arc surface of the arc block 233 through the fixing member 3 245, the clamping member 3 246 and the stabilizing sleeve 43, so that the silver alloy wire can be repeatedly bent, and then the anti-bending mechanical properties of the silver alloy wire can be tested.

[0061] See also Figure 4 and Figure 5 The stretching mechanism 5 includes a linkage sleeve 51, a socket 52, an insertion rod 53, an adjustment block 54 and a fixed sleeve 55; a linkage sleeve 51 that moves up and down is arranged above the fixing member 234 adjacent to the right side of the fixing member 231, and the linkage sleeve 51 is fixedly connected to the connecting plate 2 331 through the upper rod member 4, and a socket 52 is fixedly arranged on the front side of the linkage sleeve 51, and an insertion rod 53 that is plugged and matched with the socket 52 is fixedly arranged on the upper end of the driven plate 248 located on the front side of the linkage sleeve 51, and an adjustment block 54 that is slidably connected to the linkage sleeve 51 is fixedly arranged on the upper surface of the L-shaped clamping seat 241 located on the lower side of the linkage sleeve 51, and a fixing sleeve 55 that is fixedly connected to the detection table 1 through the plate member 1 is arranged on the left side of the linkage sleeve 51, and the fixing sleeve 55 is slidably engaged with the adjustment block 54.

[0062] When the performance of the silver alloy wire in withstanding plastic deformation during continuous stretching is to be tested, the adjusting block 54 is first slidably inserted from the fixing sleeve 55 into the linkage sleeve 51, and the adjusting block 54 then drives the L-shaped clamping seat 241 on the lower side to slide synchronously and adjust and align with the corresponding fixing member 234 and the clamping member 235 below, and then the clamping member 235 is driven by the electric push rod 21 to cooperate with the fixing member 234 to clamp and fix the lower end of the silver alloy wire, and then the driven rod 247 and the clamping member 235 are driven by the rotating disk 244. 46 cooperates with the fixing piece three 245 to clamp and fix its upper end, and at the same time, the driven plate 248 that moves backward with the driven rod 247 drives the insertion rod 53 to be inserted into the socket 52, so that the L-shaped clamping seat 241 and the connecting sleeve 51 are positioned and connected. At this time, the hydraulic cylinder 32 can drive the connecting sleeve 51 and the L-shaped clamping seat 241 to move upward, and the L-shaped clamping seat 241 can drive the upper section of the silver alloy wire to be continuously stretched upward through the clamping piece three 246 and the fixing piece three 245, so that the tensile mechanical properties of the silver alloy wire can be tested.

[0063] See also Figure 2 and Figure 3 The torsion mechanism 6 includes a driven component 61 and a docking component 62; wherein the driven component 61 is arranged above the second fixing member 234 on the far right, and the docking component 62 is arranged on the front side of the driven component 61.

[0064] See also Figure 2 and Figure 3The driven component 61 includes a driven column 611, a spiral groove 612, a rotating sleeve 613 and a sleeve shaft 614; a driven column 611 is rotatably arranged on the right side of the driving frame 31 and is slidably connected to the driving ring 332. A spiral groove 612 is provided on the surface of the driven column 611 and is slidably matched with the driving shaft 333. A rotating sleeve 613 is fixedly arranged at the lower end of the driven column 611, and a sleeve shaft 614 rotatably connected to the rotating sleeve 613 is fixedly arranged on the upper surface of the L-shaped clamping seat 241 located at the lower side of the rotating sleeve 613.

[0065] See also Figure 3 The docking assembly 62 includes a second socket 621, a second plug rod 622 and a third socket 623; a second socket 621 is fixedly provided on the front side of the rotating sleeve 613, and a second plug rod 622 which is plugged into and matched with the second socket 621 is fixedly provided on the upper end of the driven plate 248 located on the front side of the rotating sleeve 613; a third socket 623 which is plugged into and matched with the second plug rod 622 is fixedly provided on the front side of the second plug rod 622 on the driving frame 31 through an L-shaped rod member 5.

[0066] When the performance of the silver alloy wire in withstanding plastic deformation during continuous torsion is to be tested, the electric push rod 21 is first used to drive the clamping piece 235 to cooperate with the fixing piece 234 to clamp and fix the lower end of the silver alloy wire, and then the rotating disk 244 drives the driven rod 247 and the clamping piece 3 246 to cooperate with the fixing piece 3 245 to clamp and fix its upper end. At the same time, the driven plate 248 that moves backward with the driven rod 247 drives the plug rod 2 622 to move backward synchronously, so that the front section of the plug rod 2 622 is disengaged from the socket 3 623, and the rear section is inserted into the socket 2 621, so that the L-shaped clamping seat 241 is positioned and connected with the rotating sleeve 613. At this time, the driving ring 332 and the driving shaft 333 can be driven by the hydraulic cylinder 32 to move upward synchronously, and the driving shaft 333 then passes through the sliding with the spiral groove 612. The dynamic fit drives the driven column 611 and the rotating sleeve 613 to rotate continuously in one direction, and the L-shaped clamping seat 241 rotates synchronously therewith in one direction and drives the upper section of the silver alloy wire to twist continuously in one direction through the clamping part 3 246 and the fixing part 3 245, so that the anti-torsion mechanical property of the silver alloy wire can be tested. This operation mode can realize the synchronous testing of the bending resistance, tensile resistance and torsion resistance of the silver alloy wire by driving with a single driving source hydraulic cylinder 32, which can not only meet the testing conditions of various mechanical properties of the silver alloy wire through the same equipment, but also reduce the overall operation steps and required testing equipment for the mechanical property testing of the silver alloy wire, reduce the overall use, maintenance and space cost of the testing equipment, and improve the efficiency of the overall testing of the mechanical properties of the silver alloy wire.

[0067] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A process for manufacturing a silver alloy wire for an IC, the process comprising the following steps: Step 1: Melting: Mix pure silver with the remaining alloy and melt the mixture into a uniform alloy at high temperature; Step 2: Casting: Using continuous casting technology, the molten silver alloy is passed through a mold to form a rod; Step 3: Cold drawing: The bar is further refined through the cold drawing process. During the cold drawing process, the cast bar is passed through a series of progressively smaller dies to gradually reduce the diameter of the bar and increase its length; Step 4: Annealing: Annealing the cold-drawn silver alloy wire to restore the ductility of the silver alloy wire and reduce its internal stress; Step 5: Cleaning: Clean the annealed silver alloy wire to remove the oxide layer and other impurities on its surface; Step 6. Inspection: Perform appearance inspection and mechanical property test on the finished silver alloy wire to ensure that the wire meets the quality standards; In the above step 6, a testing device is used to perform mechanical property testing on the silver alloy wire for IC, and the testing device includes a testing platform (1), Features: A clamping mechanism (2) is arranged on the upper side of the detection platform (1), a driving mechanism (3) is arranged on the upper side of the clamping mechanism (2), and a bending mechanism (4), a stretching mechanism (5) and a twisting mechanism (6) are arranged on the clamping mechanism (2) in sequence from left to right; The clamping mechanism (2) comprises a lower clamping assembly (23) and an upper clamping assembly (24); the lower clamping assembly (23) is arranged on the upper side of the detection platform (1), and the upper clamping assembly (24) is arranged above the lower clamping assembly (23); The lower clamping assembly (23) comprises a fixing member 1 (231) and a fixing member 2 (234); one fixing member 1 (231) and two fixing members 2 (234) are evenly fixedly arranged on the upper side of the detection platform (1) from left to right; The upper clamping assembly (24) comprises an L-shaped clamping seat (241) and a fixing member 3 (245); a movable L-shaped clamping seat (241) is disposed above the fixing member 1 (231) and the fixing member 2 (234); and a fixing member 3 (245) is fixedly disposed at the rear end of the horizontal section of the L-shaped clamping seat (241); The driving mechanism (3) comprises a driving frame (31), a hydraulic cylinder (32) and a linkage assembly (33); the driving frame (31) is fixedly arranged on the upper side of the detection platform (1), the hydraulic cylinder (32) is fixedly arranged on the upper surface of the driving frame (31), and the linkage assembly (33) is arranged at the telescopic end of the hydraulic cylinder (32); The bending mechanism (4) comprises an alignment component (44) and a swing component (45); the alignment component (44) is arranged on the L-shaped clamping seat (241) above the fixing member 1 (231), and the swing component (45) is arranged on the rear side of the alignment component (44); The stretching mechanism (5) comprises a linkage sleeve (51), an adjustment block (54) and a fixed sleeve (55); a linkage sleeve (51) that moves up and down is arranged above the second fixing member (234) adjacent to the right side of the first fixing member (231); the linkage sleeve (51) is fixedly connected to the second connecting plate (331) through the upper rod member 4; an adjustment block (54) that is slidably connected to the linkage sleeve (51) is fixedly arranged on the upper surface of the L-shaped clamping seat (241) located at the lower side of the linkage sleeve (51); a fixed sleeve (55) that is fixedly connected to the detection platform (1) through the plate member 1 is arranged on the left side of the linkage sleeve (51); the fixed sleeve (55) is slidably matched with the adjustment block (54); The torsion mechanism (6) comprises a driven component (61) and a docking component (62); wherein the driven component (61) is arranged above the second fixing member (234) on the far right, and the docking component (62) is arranged on the front side of the driven component (61).

2. The process for manufacturing a silver alloy wire for IC according to claim 1, Features: The clamping mechanism (2) further comprises an electric push rod (21) and a connecting plate (22); the front side of the detection platform (1) is fixedly provided with the electric push rod (21) via a plate (22), and the telescopic end of the electric push rod (21) is fixedly provided with a connecting plate (22); The bending mechanism (4) further comprises a placement hole (41), a rotating frame (42) and a stabilizing sleeve (43); the placement hole (41) is provided on the upper surface of the L-shaped clamping seat (241) located above the fixing member 1 (231); the rotating frame (42) is fixedly provided at the lower end of the fixing member 3 (245) located above the fixing member 1 (231); and the stabilizing sleeve (43) is fixedly provided on the front side of the rotating frame (42); The stretching mechanism (5) further comprises a socket (52) and an insertion rod (53); the socket (52) is fixedly arranged on the front side of the linkage sleeve (51), and the insertion rod (53) is slidably inserted into the socket (52).

3. The process for manufacturing a silver alloy wire for IC according to claim 2, Features: The lower clamping assembly (23) comprises a clamping member 1 (232), an arc block (233) and a clamping member 2 (235); the front side of the fixing member 1 (231) is slidably provided with a clamping member 1 (232) through a left-right symmetrical guide rod 1, the clamping member 1 (232) is fixedly connected to a front connecting plate 1 (22) through a rod 1, the upper sides of the fixing member 1 (231) and the clamping member 1 (232) are both symmetrically fixedly provided with arc blocks (233), the front sides of the two fixing members 2 (234) are both slidably provided with clamping members 2 (235) through guide rod 2, and the clamping members 2 (235) are both fixedly connected to a front connecting plate 1 (22) through rod 2.

4. The process for manufacturing a silver alloy wire for IC according to claim 2, Features: The upper clamping assembly (24) comprises a U-shaped frame (242), a threaded rod (243), a rotating disk (244), a clamping member (246), a driven rod (247) and a driven plate (248); the U-shaped frame (242) is fixedly arranged on the front side of the vertical section of the L-shaped clamping seat (241); the threaded rod (243) is internally threadedly connected to the front surface of the U-shaped frame (242); the rotating disk (244) is fixedly arranged at the front end of the threaded rod (243); the fixing member (245) is fixedly arranged on the front side of the vertical section of the L-shaped clamping seat (241); A clamping piece three (246) is slidably provided on the front side through a guide rod three, a follower rod (247) slidably connected to the vertical section of the L-shaped clamping seat (241) is fixedly provided on the front side of the clamping piece three (246), the front end of the follower rod (247) is rotatably connected to the rear end of the threaded rod (243), and a follower plate (248) is fixedly provided on the front end of the follower rod (247), wherein the follower plate (248) located on the front side of the linkage sleeve (51) is fixedly connected to the front end of the insertion rod one (53).

5. The process for manufacturing a silver alloy wire for IC according to claim 4, Features: The linkage assembly (33) comprises a second connecting plate (331), a drive ring (332), a drive shaft (333), an L-shaped connecting frame (334) and a rack (335); the telescopic end of the hydraulic cylinder (32) is fixedly provided with the second connecting plate (331), the right end of the second connecting plate (331) is fixedly provided with the drive ring (332), the inner surface of the drive ring (332) is fixedly provided with the drive shaft (333), the left end of the second connecting plate (331) is fixedly provided with the L-shaped connecting frame (334), and the lower end of the vertical section of the L-shaped connecting frame (334) is fixedly provided with a rack (335) slidably connected to the surface of the detection platform (1).

6. The process for manufacturing a silver alloy wire for IC according to claim 4, Features: The alignment component (44) comprises a return frame (441), a sliding sleeve (442), a slider (443), a connecting rod (444), a rotating shaft (445) and a clamping shaft (446); the return frame (441) is fixedly arranged on the rear side of the driven plate (248) located above the fixing member (231); the sliding sleeve (442) is fixedly arranged on the lower end of the rotating frame (42); the slider (443) is slidably arranged in the sliding sleeve (442); the upper surface of the slider (443) is fixedly arranged with a connecting rod (444) slidably connected to the upper surface of the sliding sleeve (442); the upper end of the connecting rod (444) is fixedly connected to the rear end of the return frame (441); the rear side of the slider (443) is fixedly arranged with a rotating shaft (445) slidably connected to the rear surface of the sliding sleeve (442); the rear end of the rotating shaft (445) is fixedly arranged with a clamping shaft (446).

7. A process for manufacturing a silver alloy wire for IC according to claim 6, Features: The swing assembly (45) comprises a support seat (451), a positioning sleeve (452), a positioning groove (453), a cam (454), a docking groove (455), a first connecting shaft (456), a gear (457), a second connecting shaft (458) and a second connecting rod (459); a support seat (451) is fixedly provided on the upper surface of the detection platform (1) at the rear side of the sliding sleeve (442), a positioning sleeve (452) is fixedly provided at the upper left corner of the support seat (451), a positioning groove (453) which is slidably matched with the clamping shaft (446) is provided in the positioning sleeve (452), and the positioning A cam (454) is rotatably provided at the rear end of the sleeve (452), and a docking groove (455) is provided on the cam (454) for slidingly matching with the clamping shaft (446). A connecting shaft 1 (456) is fixedly provided at the upper end of the rear surface of the cam (454). A gear (457) meshing with the rack (335) is rotatably provided at the upper right corner of the support seat (451) through a rod member 3, and a connecting shaft 2 (458) is eccentrically fixedly provided on the rear surface of the gear (457). A connecting rod 2 (459) is provided for common transmission with the surface of the connecting shaft 2 (458) and the connecting shaft 1 (456).

8. The process for manufacturing a silver alloy wire for IC according to claim 5, Features: The driven component (61) comprises a driven column (611), a spiral groove (612), a rotating sleeve (613) and a sleeve shaft (614); a driven column (611) slidably connected to a driving ring (332) is rotatably arranged on the right side of the driving frame (31); a spiral groove (612) slidably matched with the driving shaft (333) is provided on the surface of the driven column (611); a rotating sleeve (613) is fixedly arranged at the lower end of the driven column (611); and a sleeve shaft (614) rotatably connected to the rotating sleeve (613) is fixedly arranged on the upper surface of an L-shaped clamping seat (241) located at the lower side of the rotating sleeve (613).

9. The process for manufacturing a silver alloy wire for IC according to claim 8, Features: The docking assembly (62) comprises a second socket (621), a second plug rod (622) and a third socket (623); the second socket (621) is fixedly provided on the front side of the rotating sleeve (613); the second plug rod (622) pluggably mating with the second socket (621) is fixedly provided on the upper end of the driven plate (248) located on the front side of the rotating sleeve (613); and the third socket (623) pluggably mating with the second plug rod (622) is fixedly provided on the front side of the second plug rod (622) on the driving frame (31) through an L-shaped rod member 5.

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