Micro Connector Pin Precision Stamping and Forming Device

Abstract

The present invention provides a precision stamping and forming device for micro-connector pins, which comprises a base and a top seat. A lower template is provided on the base, and a central piezoelectric ceramic sheet located in the central forming area and edge piezoelectric ceramic sheets surrounding the central forming area are provided on the lower template. Two groups of servo motors are provided on the top seat. Each group of servo motors is connected with a crankshaft through a harmonic reducer. The crank of the crankshaft is in a disc shape, and a chute along its radial direction is provided on the crank. A slider is movably connected in the chute, and an output end is rotatably connected to the slider. A connecting rod is provided on the front side of each crankshaft. The connecting rod penetrates through the top seat and extends downward and is slidably connected to a slide rail along the vertical direction. A section of the connecting rod above the top seat is rotatably connected with an input end, and a micro motor is provided on the input end. The output end and the input end are connected by a screw rod driven by the micro motor along the radial direction of the two. The screw rod is rotatably connected to the input end and drivingly connected to the output end. The two crankshafts are symmetrically arranged.

Description

Technical Field

[0001] The present invention relates to the technical field of equipment for manufacturing line connectors, and particularly to a precision stamping and forming device for micro-connector pins. Background Art

[0002] In the field of electronic component manufacturing, the processing of flexible pins usually relies on traditional stamping and forming devices. The core function of such devices is to apply pressure to a metal strip through a die to plastically deform it into the required shape. However, with the development of electronic components towards miniaturization and high density, the dimensional accuracy requirements for connector pins have entered the micron level, and traditional stamping and forming devices face challenges in aspects such as die fixing methods, stamping stability, and safety.

[0003] For example, a patent document with the publication number CN217563024U discloses a stamping device for processing flexible pins for electronic components. Through the structural design of hydraulic drive and stamping execution unit, that is, the setting of hydraulic rods, die plates, and vertical guiding mechanisms, it ensures that the die plate moves only in the vertical direction and reduces deflection.

[0004] However, single hydraulic drive easily leads to uneven pressure and vibration. Because the die plate undergoes elastic deformation under single-point pressure, the actual pressure in the central area is higher than that in the edge area. For the processing of micro-connector pins, the local pressure deviation on the working surface of the die will cause the material flow to get out of control, resulting in burrs or uneven thickness. At the same time, the oil has slight compressibility under high pressure, resulting in instantaneous fluctuations in the output pressure of the hydraulic cylinder. At the moment of stamping, the energy released by the compression of the oil will cause pressure peaks and rebound vibrations. Summary of the Invention

[0005] The present invention aims to solve the above technical problems and provides a precision stamping and forming device for micro-connector pins.

[0006] The technical solution of the present invention is a precision stamping forming device for micro-connector pins, which includes a base and a top seat. A lower template is provided on the base, and a central piezoelectric ceramic sheet located in the central forming area and edge piezoelectric ceramic sheets surrounding the central forming area are provided at the bottom of the lower template; two sets of servo motors are provided on the top seat, and each set of servo motors is connected to a crankshaft through a harmonic reducer. The crank of the crankshaft is disc-shaped, and a chute along its radial direction is provided on the crank. A slider is movably connected in the chute, and an output end is rotatably connected to the slider. A connecting rod is provided on the front side of each crankshaft. The connecting rod penetrates through the top seat and extends downward and is slidably connected to a vertical slide rail. A section of the connecting rod above the top seat is rotatably connected to an input end, and a micro-motor is provided on the input end. The output end and the input end are connected by a screw rod driven by the micro-motor along the radial direction of the two. The screw rod is rotatably connected to the input end and drivingly connected to the output end. The two crankshafts are symmetrically arranged, and the ends of the two connecting rods below the top seat are connected to an upper template. The upper template is also driven by stamping cylinders arranged in four directions of the top seat. The four stamping cylinders surround the two connecting rods; wherein, when the central piezoelectric ceramic sheet and the edge piezoelectric ceramic sheets detect uneven pressure in the area, the micro-motor rotates to adjust the relative position of the output end on the crankshaft so as to adjust the eccentricity of the crankshaft.

[0007] As an implementation manner, the base and the top seat are connected by four guide columns, and the four guide columns are respectively connected at positions near the four corners of the base and the top seat.

[0008] As an implementation manner, a first semi-circular nut is fixed on the tabletop of the base, a second semi-circular nut detachably connected to the first semi-circular nut is provided on the tabletop of the base, threads are provided on the guide columns, and the first semi-circular nut and the second semi-circular nut together form a nut for the guide columns to be threadedly connected.

[0009] As an implementation manner, a cylinder seat is provided on the top seat, the cylinder seat is for the stamping cylinder to be fixedly installed, and the piston rod of the stamping cylinder is connected to the upper template through a connecting piece.

[0010] As an implementation manner, positioning holes are provided on the top seat, the connecting rod penetrates through the top seat through the positioning holes, and the slide rail is provided at the bottom of the top seat and below the positioning holes.

[0011] As an implementation manner, a sunken cavity is provided on the top seat, and the servo motor and the crankshaft are both located in the sunken cavity.

[0012] As an implementation manner, the width of the top seat is smaller than the width of the base. Lower guide rods are provided on both sides of the lower template on the base. Each side of the lower guide rods is provided in two places, front and back. Lower docking rails are provided on the lower guide rods, and lower docking grooves are provided on the lower docking rails.

[0013] On the top seat, there are upper guide rods located on both sides of the upper template. Each side of the upper guide rods is provided in two places, front and back. An upper docking rail is provided on the upper guide rod. The upper docking rail is located directly above the lower docking rail. An upper docking groove is formed on the upper docking rail. When the upper guide rod and the lower guide rod are in contact, the upper docking groove and the lower docking groove form a calibration through groove that is closed up and down and penetrated front and back.

[0014] As an implementation manner, side seats are provided on the front and back sides of the top seat. Guide sleeves are provided on the side seats. The guide sleeves are along the vertical direction, and the upper guide rods are provided to pass through the guide sleeves.

[0015] As an implementation manner, an annular damping cavity is provided at the connection between the connecting rod and the upper template. A disc spring is provided in the annular damping cavity. The annular damping cavity is also filled with a silicone matrix.

[0016] The beneficial effect of the present invention compared with the prior art is that for this precision stamping and forming device for micro-connector pins, a combination of two driving methods, a servo motor and a stamping cylinder, is adopted. Among them, the connecting rod driven by the servo motor corresponds to the middle area of the upper template, and the stamping cylinder corresponds to the edge area of the upper template. When two groups of servo motors drive the symmetrically arranged crankshafts, and thus drive the connecting rod to push the upper template to press down, the lateral torque can be offset and the yaw can be controlled. The center piezoelectric ceramic sheet and the edge piezoelectric ceramic sheet are used to detect whether the regional pressure is uneven. And when the regional pressure is uneven, the micro-motor responds and rotates to adjust the eccentricity of the crankshaft and change the stroke length. This directly affects the volume change rate and compression ratio of the cylinder, adjusts the compression and expansion processes of the gas in each cylinder, and makes the pressure changes in the middle area and the edge area more balanced. When this precision stamping and forming device for micro-connector pins is used for the processing of micro-connector pins, burrs and uneven thickness can be avoided, so as to precisely manufacture higher-quality micro-connector pins. Description of the Drawings

[0017] Figure 1 It is the first structural schematic diagram of the precision stamping and forming device for micro-connector pins provided by the embodiment of the present invention;

[0018] Figure 2 It is the second structural schematic diagram of the precision stamping and forming device for micro-connector pins provided by the embodiment of the present invention;

[0019] Figure 3 For Figure 1 The partial enlarged view of the precision stamping and forming device for micro-connector pins provided in

[0020] Figure 4 For Figure 2 The partial enlarged view of the precision stamping and forming device for micro-connector pins provided in

[0021] Figure 5 This is the third structural schematic diagram of the precision stamping and forming device for the micro-connector pin provided by the embodiment of the present invention.

[0022] In the figure: 1, base; 2, top seat; 3, lower template; 4, central piezoelectric ceramic sheet; 5, edge piezoelectric ceramic sheet; 6, servo motor; 7, harmonic reducer; 8, crankshaft; 9, chute; 10, slider; 11, output end; 12, connecting rod; 13, slide rail; 14, input end; 15, micro-motor; 16, screw; 17, upper template; 18, stamping cylinder; 19, guide post; 20, first semi-circular nut; 21, second semi-circular nut; 22, thread; 23, cylinder seat; 24, connecting piece; 25, positioning hole; 26, sunken cavity; 27, lower guide rod; 28, lower docking rail; 29, lower docking groove; 30, upper guide rod; 31, upper docking rail; 32, upper docking groove; 33, side seat; 34, guide sleeve; 35, annular damping cavity. Specific embodiments

[0023] The following will clearly and completely describe the above and other embodiments and advantages of the present invention with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0024] In one embodiment, as Figures 1 to 5 shown.

[0025] The precision stamping and forming device for the micro-connector pin provided by this embodiment includes a base 1 and a top seat 2. A lower template 3 is provided on the base 1. At the bottom of the lower template 3, a central piezoelectric ceramic sheet 4 located in the central forming area and an edge piezoelectric ceramic sheet 5 surrounding the central forming area are provided; two sets of servo motors 6 are provided on the top seat 2. Each set of servo motors 6 is connected to a crankshaft 8 through a harmonic reducer 7. The crank of the crankshaft 8 is in a disc shape, and a chute 9 along its radial direction is opened on the crank. A slider 10 is movably connected in the chute 9. An output end 11 is rotatably connected to the slider 10. A connecting rod 12 is provided on the front side of each crankshaft 8. The connecting rod 12 penetrates through the top seat 2 and extends downward and is slidably connected to a slide rail 13 along the vertical direction. A section of the connecting rod 12 above the top seat 2 is rotatably connected to an input end 14. A micro motor 15 is provided on the input end 14. The output end 11 and the input end 14 are connected by a screw rod 16 driven by the micro motor 15 along the radial direction of the two. The screw rod 16 is rotatably connected to the input end 14 and is drivingly connected to the output end 11. The two crankshafts 8 are symmetrically arranged. The ends of the two connecting rods 12 below the top seat 2 are connected to an upper template 17. The upper template 17 is also driven by stamping cylinders 18 arranged in four directions of the top seat 2. The four stamping cylinders 18 surround the two connecting rods 12; wherein, when the central piezoelectric ceramic sheet 4 and the edge piezoelectric ceramic sheet 5 detect uneven regional pressure, the micro motor 15 rotates to adjust the relative position of the output end 11 on the crankshaft 8 so as to adjust the eccentricity of the crankshaft 8.

[0026] In this embodiment, the precision stamping and forming device for the micro-connector pin combines two driving methods of servo motors 6 and stamping cylinders 18. Among them, the connecting rod 12 driven by the servo motor 6 corresponds to the middle area of the upper template 17, and the stamping cylinder 18 corresponds to the edge area of the upper template 17. Compared with a single hydraulic drive that is prone to uneven pressure and vibration, the advantage of this precision stamping and forming device for the micro-connector pin is that by driving the symmetrically arranged crankshafts 8 by two sets of servo motors 6, that is, the phase difference between the two crankshafts 8 is 180°, when driving the connecting rod 12 to push the upper template 17 to press down, the lateral torque can be offset and the yaw can be controlled.

[0027] In this embodiment, due to the provision of the central piezoelectric ceramic sheet 4 and the edge piezoelectric ceramic sheet 5, the central piezoelectric ceramic sheet 4 and the edge piezoelectric ceramic sheet 5 are used to detect whether the regional pressure is uneven. And when the regional pressure is uneven, the micro motor 15 responds and rotates. The rotation of the micro motor 15 can drive the screw 16 to rotate. Since both connecting ends of the screw 16 are freely rotatable ends, that is, the output end 11 and the input end 14 can both rotate freely. Therefore, when the screw 16 rotates, it adjusts the relative position of the output end 11 on the crankshaft 8, and thus adjusts the eccentricity of the crankshaft 8. The crankshaft 8 is connected to the connecting rod 12 through the screw 16. Therefore, the change in the eccentricity of the crankshaft 8 means that the stroke length driven by the connecting rod 12 has changed. At the same time, the stroke lengths driven by the stamping cylinders 18 in four directions also change synchronously. This directly affects the volume change rate and compression ratio of the cylinders. Therefore, by adjusting the eccentricity of the crankshaft 8, the compression and expansion processes of the gas in each cylinder can be adjusted, making the pressure changes in the middle region and the edge region more balanced. When used for the processing of micro connector pins, burrs and uneven thickness can be avoided, thus precisely manufacturing higher-quality micro connector pins.

[0028] In one embodiment, as Figure 1 shown.

[0029] For the precision stamping forming device of micro connector pins provided in this embodiment, the base 1 and the top seat 2 are connected by four guide posts 19, and the four guide posts 19 are respectively connected at positions near the four corners of the base 1 and the top seat 2.

[0030] In this embodiment, the four guide posts 19 of the precision stamping forming device of micro connector pins are respectively fixed at the four corner positions of the base 1 and the top seat 2, forming a symmetric distribution. The guide posts 19 are made of high-strength alloy steel and are surface-treated with hard anodizing to enhance wear resistance. The symmetric distribution layout improves the overall rigidity of the precision stamping forming device through four-corner support, ensuring that the parallelism error between the upper template 17 and the lower template 3 during the stamping process is small. During installation, the guide posts 19 are fixed to the base 1 and the top seat 2 through the threads 22, and the height of the guide posts 19 can be adjusted to adapt to molds of different thicknesses.

[0031] In one embodiment, as Figure 1 shown.

[0032] For the precision stamping forming device of micro connector pins provided in this embodiment, a first semi-circular nut 20 is fixed on the tabletop of the base 1, a second semi-circular nut 21 detachably connected to the first semi-circular nut 20 is provided on the tabletop of the base 1, a thread 22 is provided on the guide post 19, and after the first semi-circular nut 20 and the second semi-circular nut 21 are connected, they jointly form a nut for the threaded connection of the guide post 19.

[0033] In this embodiment, the micro connector pin precision stamping forming device has a first semi-arc nut 20 fixed on the table top of the base 1, and a thread 22 is provided on the inner side of the first semi-arc nut 20; the table top of the base 1 is also provided with a removable second semi-arc nut 21, which is fastened and closed with the first semi-arc nut 20 by bolts. The outer surface of the guide column 19 is provided with a thread 22 that matches the semi-arc nut, and the closed semi-arc nut forms a complete threaded hole for fixing and height adjustment of the guide column 19. When in use, after removing the second semi-arc nut 21, the position of the guide column 19 can be quickly replaced or adjusted without disassembling the entire machine. Therefore, the provision of the semi-arc nut simplifies the maintenance process of the guide column 19, improves the adjustment efficiency, and adapts to the rapid switching of molds of multiple specifications.

[0034] In one embodiment, Figure 5 shown.

[0035] The micro connector pin precision stamping forming device provided in this embodiment has a cylinder seat 23 on its top seat 2, and the cylinder seat 23 is used for fixing and installing the stamping cylinder 18. The piston rod of the stamping cylinder 18 is connected to the upper template 17 through a connecting piece 24.

[0036] In this embodiment, a cylinder seat 23 is provided on the top of the top seat 2 of the micro connector pin precision stamping forming device, which is fixed by high-strength bolts. The stamping cylinder 18 can be installed on the cylinder seat 23 through a flange, and the end of its piston rod is connected to the upper template 17 through a universal connector 24. The universal connector 24 adopts a ball joint structure, which can compensate for small deflection errors. During stamping, the cylinder drives the upper template 17 to press down through the piston rod, and the universal connector 24 automatically corrects the force direction to ensure uniform pressure distribution.

[0037] In one embodiment, Figure 2 shown.

[0038] The micro connector pin precision stamping forming device provided in this embodiment has a positioning hole 25 on the top seat 2, the connecting rod 12 passes through the top seat 2 through the positioning hole 25, and the slide rail 13 is arranged at the bottom of the top seat 2 and below the positioning hole 25.

[0039] In this embodiment, a positioning hole 25 is provided in the middle of the top seat 2 of the micro connector pin precision stamping forming device, and the connecting rod 12 passes through the positioning hole 25 and is connected to the upper template 17. The slide rail 13 is arranged directly below the positioning hole 25, and the surface of the slide rail 13 is coated with a titanium nitride coating to reduce friction resistance. The positioning hole 25 and the slide rail 13 form a double positioning for the connecting rod 12. During the stamping process, the slide rail 13 guides the upper template 17 to move in the vertical direction, and the positioning hole 25 ensures the coaxiality of the connecting rod 12 and the slide rail 13.

[0040] In one embodiment, Figure 2 shown.

[0041] The precision stamping and forming device for the micro-connector pin provided by this embodiment has a sunken cavity 26 formed on the top seat 2, and both the servo motor 6 and the crankshaft 8 are located inside the sunken cavity 26.

[0042] In this embodiment, the inside of the top seat 2 of the precision stamping and forming device for the micro-connector pin is provided with a sunken cavity 26. The depth of the sunken cavity 26 is 50 mm, and the width matches the size of the driving component. The servo motor 6 can be fixed to the bottom of the sunken cavity 26 through a bracket.

[0043] In one embodiment, as Figure 5 shown.

[0044] The precision stamping and forming device for the micro-connector pin provided by this embodiment has a top seat 2 with a width smaller than that of the bottom seat 1. The bottom seat 1 is provided with lower guide rods 27 on both sides of the lower template 3. Each side of the lower guide rods 27 is provided with two positions, front and back. The lower guide rods 27 are provided with lower docking rails 28, and the lower docking rails 28 are provided with lower docking grooves 29. The top seat 2 is provided with upper guide rods 30 on both sides of the upper template 17. Each side of the upper guide rods 30 is provided with two positions, front and back. The upper guide rods 30 are provided with upper docking rails 31. The upper docking rails 31 are located directly above the lower docking rails 28. The upper docking rails 31 are provided with upper docking grooves 32. The upper docking grooves 32 and the lower docking grooves 29 form a vertically closed and horizontally through calibration through groove when the upper guide rods 30 and the lower guide rods 27 are in contact.

[0045] In this embodiment, for the precision stamping and forming device of the micro-connector pin, the width of the bottom seat 1 is greater than that of the top seat 2. Two groups of lower guide rods 27 are symmetrically arranged on both sides of the bottom seat 1, and each group contains two support points, front and back. The lower docking rails 28 are fixed on the lower guide rods 27, and the lower docking grooves 29 are formed on the surface. The upper guide rods 30 are correspondingly arranged on both sides of the top seat 2. The upper docking rails 31 are installed on the upper guide rods 30, and the upper docking grooves 32 are formed on the surface. When the upper and lower templates 3 are closed, the upper and lower docking grooves 29 are aligned to form a horizontally through calibration through groove. During use, a standard gauge is inserted into the calibration through groove to detect the alignment accuracy of the upper template 17 and the lower template 3.

[0046] In one embodiment, as Figure 5 shown.

[0047] The precision stamping and forming device for the micro-connector pin provided by this embodiment has side seats 33 on the front and back sides of the top seat 2. Guide sleeves 34 are provided on the side seats 33. The guide sleeves 34 are along the vertical direction, and the upper guide rods 30 pass through the guide sleeves 34.

[0048] In this embodiment, side seats 33 are welded to the front and rear sides of the top seat 2 of the precision stamping and forming device for the micro-connector pins. A guide sleeve 34 is vertically installed on the side seat 33. The inner diameter of the guide sleeve 34 has a clearance fit with the outer diameter of the upper guide rod 30, and a self-lubricating copper-based bushing is provided on the inner wall. The upper guide rod 30 moves up and down through the guide sleeve 34.

[0049] In one embodiment, as Figure 1 shown.

[0050] For the precision stamping and forming device for the micro-connector pins provided in this embodiment, an annular damping cavity 35 is provided at the connection between the connecting rod 12 and the upper template 17. A disc spring is provided in the annular damping cavity 35, and the annular damping cavity 35 is also filled with a silicone matrix.

[0051] In this embodiment, for the precision stamping and forming device for the micro-connector pins, in order to overcome the pressure peak and rebound vibration caused instantaneously during stamping. The silicone matrix is arranged in the annular damping cavity 35 to absorb high-frequency vibration, and the disc spring is used to suppress low-frequency fluctuations. The combination of the two can greatly improve the vibration attenuation rate.

[0052] In a preferred embodiment, an acceleration sensor can also be arranged in the annular damping to detect the vibration frequency in real time, and a mathematical relationship between the vibration energy (Ev) and the pressure non-uniformity (ΔP) is established: Ev = k⋅ΔP 2 +b (k = 0.12, b = 0.05). The pressure non-uniformity is calculated from the data detected by the central piezoelectric ceramic sheet 4 and the edge piezoelectric ceramic sheet 5. During the precision stamping process, uneven pressure distribution will cause the force on the die plate to be unbalanced, resulting in vibration. The positive correlation between the vibration energy and the pressure non-uniformity indicates that the vibration energy directly reflects the uniformity of the pressure distribution. When the vibration frequency is greater than the first set value, the silicone matrix is enabled to absorb high-frequency vibration. When the vibration frequency is less than the second set value, the eccentricity of the crankshaft 8 is adjusted according to the vibration energy feedback. The design with a 180° phase difference between the two crankshafts 8 was originally used to cancel the lateral torque. When uneven pressure is detected, by finely adjusting the eccentricity of the single-sided crankshaft 8, the direction of the resultant force of the bilateral downward pressure can be adjusted, making the overall force on the lower template 3 tend to be symmetric.

[0053] The above specific embodiments have further elaborated on the invention purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above is only the specific embodiments of the present invention and is not used to limit the protection scope of the present invention. In particular, it is pointed out that for those skilled in the art, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A precision stamping and forming device for micro connector pins, characterized in that, It includes a base and a top seat. A lower template is provided on the base, and a central piezoelectric ceramic sheet located in the central forming area and edge piezoelectric ceramic sheets surrounding the central forming area are provided at the bottom of the lower template; Two sets of servo motors are provided on the top seat. Each set of servo motors is connected to a crankshaft through a harmonic reducer. The crank of the crankshaft is disc-shaped, and a chute along its radial direction is provided on the crank. A slider is movably connected in the chute, and an output end is rotatably connected to the slider. A connecting rod is provided on the front side of each crankshaft. The connecting rod penetrates through the top seat and extends downward and is slidably connected to a vertical slide rail. A section of the connecting rod above the top seat is rotatably connected to an input end, and a micro motor is provided on the input end. The output end and the input end are connected by a screw rod driven by the micro motor along the radial direction of the two. The screw rod is rotatably connected to the input end and drivingly connected to the output end. The two crankshafts are symmetrically arranged. The ends of the two connecting rods below the top seat are connected to an upper template. The upper template is also driven by four stamping cylinders arranged in four directions of the top seat. The four stamping cylinders surround the two connecting rods; Among them, the connecting rod driven by the servo motor corresponds to the middle area of the upper template, and the stamping cylinder corresponds to the edge area of the upper template. When the central piezoelectric ceramic sheet and the edge piezoelectric ceramic sheets detect uneven regional pressure, the micro motor rotates to adjust the relative position of the output end on the crankshaft so as to adjust the eccentricity of the crankshaft; A ring damping cavity is provided at the connection between the connecting rod and the upper template. A disc spring is provided in the ring damping cavity, and the ring damping cavity is also filled with a silica gel matrix; An acceleration sensor is provided in the ring damping cavity to detect the vibration frequency in real time, When the vibration frequency is greater than the first set value, the silica gel matrix absorbs high-frequency vibrations; When the vibration frequency is less than the second set value, adjust the eccentricity of the crankshaft according to the vibration energy feedback, where the mathematical relationship between the vibration energy and the pressure non-uniformity is: Ev = k⋅ΔP 2 +b, where Ev is the vibration energy, ΔP is the pressure non-uniformity, k is 0.12, b is 0.05, and the pressure non-uniformity is calculated from the data detected by the central piezoelectric ceramic sheet and the edge piezoelectric ceramic sheet; When uneven pressure is detected, the eccentricity of the unilateral crankshaft is finely adjusted to adjust the resultant force direction of the bilateral downward pressure, so that the overall force on the lower template tends to be symmetrical.

2. The precision stamping and forming device for the micro-connector pin according to claim 1, wherein, The base and the top seat are connected by four guide columns, and the four guide columns are respectively connected at positions near the four corners of the base and the top seat.

3. The precision stamping and forming device for the micro-connector pin according to claim 2, wherein A first semi-circular nut is fixed on the table surface of the base. A second semi-circular nut detachably connected to the first semi-circular nut is provided on the table surface of the base. The guide column is provided with a thread, and the first semi-circular nut and the second semi-circular nut are connected together to form a nut for the guide column to be threadedly connected; 4. The precision stamping and forming device for the micro-connector pin according to claim 1, wherein, A cylinder seat is provided on the top seat, and the stamping cylinder is fixedly installed on the cylinder seat. The piston rod of the stamping cylinder is connected to the upper template through a connecting piece.

5. The precision stamping and forming device for the micro-connector pin according to claim 1, characterized in that, A positioning hole is provided on the top seat, and the connecting rod penetrates through the top seat through the positioning hole. The slide rail is provided at the bottom of the top seat and is located below the positioning hole.

6. The precision stamping and forming device for the micro-connector pin according to claim 1, wherein A sunken cavity is provided on the top seat, and the servo motor and the crankshaft are both located in the sunken cavity.

7. The precision stamping and forming device for the micro-connector pin according to claim 1, characterized in that, The width of the top seat is smaller than the width of the base. Lower guide rods are provided on both sides of the lower template on the base. Each side of the lower guide rods is provided in front and back. Lower docking rails are provided on the lower guide rods, and lower docking grooves are provided in the lower docking rails; The top seat is provided with upper guide rods located on both sides of the upper template, and the upper guide rods on each side are set at two locations, front and rear. The upper guide rods are provided with upper docking rails, and the upper docking rails are located directly above the lower docking rails. The upper docking rails are provided with upper docking grooves, and the upper docking grooves and the lower docking grooves form a calibration through groove that is closed up and down and through front and back when the upper guide rods and the lower guide rods are in contact.

8. The precision stamping and forming device for the micro-connector pin according to claim 7, characterized in that Side seats are arranged at the front and rear sides of the top seat, and guide sleeves are arranged on the side seats. The guide sleeves are along the vertical direction, and the upper guide rods pass through the guide sleeves.

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