A fully automatic precision silicone wire cutting and tin-plating device

Abstract

A fully automatic precision silicone wire cutting and tinning device designed by the present invention includes a frame. At one end of the frame, there is a wire feeding chuck, and the wire feeding chuck is a pneumatic chuck. On the frame, there is a first pneumatic guide rail for controlling the horizontal movement of the wire feeding chuck. On the other side of the frame, there is a wire pulling chuck, and a second pneumatic guide rail is arranged on the frame. Between the wire feeding chuck and the wire pulling chuck, there is also a cutting tool, and the cutting edge of the cutting tool is arranged downward. Right below the cutting tool, there is a platform for supporting the silicone wire when the cutting tool cuts the silicone wire. On the frame, there is a first cylinder for controlling the up and down movement of the cutting tool, and a second cylinder for controlling the up and down movement of the platform. By means of the wire pulling chuck cooperating with the second pneumatic guide rail, the present invention changes the wire feeding mode of the silicone wire to a wire pulling mode, effectively preventing the slippage between the roller and the silicone wire during the wire feeding process, and improving the cutting precision of the silicone wire.

Description

Technical Field

[0001] The present invention relates to the technical field of tinning wires, and particularly to a fully automatic precision silicone wire cutting and tinning device. Background Art

[0002] Silicone wire is a kind of wire, usually composed of a silicone outer skin and a wire core. A thermal protector is a thermostat composed of two different alloys combined together. During the production of thermal protectors, a large amount of silicone wire is required.

[0003] Before producing a thermal protector, the silicone wire needs to be cut into small segments of the same length according to production requirements. Subsequently, a small section of the silicone outer layer at one end of the cut silicone wire is stripped off, and tinning is performed on this part of the silicone wire where the outer layer has been stripped off. After that, the metal sheet can be welded to the tinned silicone wire to complete the processing of the thermal protector. Currently, most of the steps of cutting, wire stripping, and tinning of silicone wire are manually operated, with cumbersome steps, low production efficiency, and uneven product quality.

[0004] To solve the problems of low production efficiency and uneven product quality, some manufacturers have developed automatic silicone wire cutting devices. These devices usually use rollers to convey the silicone wire to the cutting station for cutting. However, it is found in the process of use that when producing some small thermal protectors, since the silicone wire is relatively soft, the rollers are prone to slip when pressing the outer silicone layer of the silicone wire, resulting in the cutting length of the silicone wire not meeting the production precision requirements. Moreover, after the silicone wire is cut, manual wire stripping and tinning are still required, and the degree of automation is insufficient, and the production efficiency still needs to be further improved.

[0005] Therefore, a fully automatic precision silicone wire cutting and tinning device is proposed. Summary of the Invention

[0006] The purpose of the present invention is to provide a fully automatic precision silicone wire cutting and tinning device to solve the problems of insufficient cutting precision caused by slipping during the roller wire feeding process and low degree of automation mentioned in the above background art.

[0007] To achieve the above purpose, the present invention provides the following technical solutions:

[0008] A fully automatic precision silicone wire cutting and tinning device, including a frame. At one end of the frame, there is a wire feeding chuck, and the wire feeding chuck is a pneumatic chuck. On the frame, there is a first pneumatic guide rail for controlling the horizontal movement of the wire feeding chuck. On the other side of the frame, there is a wire pulling chuck, and on the frame, there is a second pneumatic guide rail for driving the horizontal movement of the wire pulling chuck. The wire pulling chuck is also a pneumatic chuck. Between the wire feeding chuck and the wire pulling chuck, there is a cutting tool, and the cutting edge of the cutting tool is arranged downward. Right below the cutting tool, there is a support table for supporting the silicone wire when the cutting tool cuts the silicone wire. On the frame, there is a first cylinder for controlling the up and down movement of the cutting tool, and on the frame, there is a second cylinder for controlling the up and down movement of the support table.

[0009] The wire pulling chuck takes the end of the silicone wire from the wire feeding chuck, and pulls the silicone wire by pulling the silicone wire through the first pneumatic guide rail, making the silicone wire cross the cutting tool. Subsequently, the second cylinder drives the support table to move upward, so that the support table supports the silicone wire from the bottom of the silicone wire. Then, the first cylinder drives the cutting tool to move downward to cut the silicone wire, effectively solving the problem of insufficient length accuracy of the cut silicone wire caused by the slippage between the silicone outer layer of the silicone wire and the roller in the traditional roller wire feeding form, and improving the cutting accuracy of the silicone wire.

[0010] Preferably, on the frame, there is also a wire stripping assembly for stripping the silicone of the silicone wire. The wire stripping assembly includes two first wire stripping blades respectively fixedly installed on the left and right sides of the support table. The first wire stripping blades are symmetrically arranged about the cutting tool on the left and right. The horizontal distance between the first wire stripping blade and the cutting tool is the wire stripping distance. On the frame, there is also a sleeve, and on the frame, there is also a third cylinder for driving the up and down movement of the sleeve. Two second wire stripping blades are fixedly installed on the sleeve, and the two second wire stripping blades are respectively located directly above the two first wire stripping blades. At the cutting edge of the first wire stripping blade, there is a semi-circular first wire stripping opening. Corresponding to the first wire stripping opening at the cutting edge of the second wire stripping blade, there is a semi-circular second wire stripping opening with the same diameter. When the first wire stripping blade and the second wire stripping blade are in contact, the first wire stripping opening and the second wire stripping opening form a complete circle. The diameter of the first wire stripping opening is smaller than the diameter of the silicone outer layer of the silicone wire and greater than or equal to the diameter of the wire core of the silicone wire.

[0011] By setting the wire stripping component, after the silicone wire is cut, the first wire stripping blade and the second wire stripping blade move towards the silicone wire from the upper and lower directions of the silicone wire respectively, and the silicone wire is clamped by the first wire stripping opening and the second wire stripping opening at the same time. Since the diameter of the complete circle formed by the first wire stripping opening and the second wire stripping opening is smaller than the diameter of the silicone outer layer of the silicone wire and greater than or equal to the diameter of the wire core, when the first wire stripping opening and the second wire stripping opening form a complete circle, the silicone outer layer of the silicone wire can be completely cut or partially cut. Then, the cut silicone wire is horizontally pulled away from the wire feeding chuck along the axis direction of the first wire stripping opening by the wire pulling chuck. Since the diameters of the first wire stripping opening and the second wire stripping opening are smaller than the diameter of the silicone outer layer, the silicone outer layer is blocked by the first wire stripping blade and the second wire stripping blade and cannot move together with the silicone wire, and will remain between the cutting tool and the first wire stripping blade. In this way, at this time, the wire core at the end of the silicone wire facing the wire feeding chuck can be separated from the silicone outer layer, realizing automatic wire stripping of the silicone wire, and the length of the wire core exposed after wire stripping is the same as the length of the wire stripping distance.

[0012] At the same time, since both the first wire stripping blade and the second wire stripping blade are two and are symmetric about the cutting tool on the left and right, after the wire cutting is completed and the first wire stripping tool and the second wire stripping tool cut the outer silicone of the silicone wire, the wire feeding chuck can also pull the silicone wire away from the wire pulling chuck to strip the silicone outer layer at the end of the silicone wire facing the wire pulling chuck, exposing the wire core inside the silicone wire, which provides convenience for subsequent processing.

[0013] The setting of the wire stripping component can automatically strip the wire head of the silicone wire, eliminating the need for manual wire stripping after wire cutting, improving the automation degree of the equipment, and effectively improving the efficiency of tinning the silicone wire.

[0014] Preferably, a tinning component for tinning is further provided on the frame. The tinning component includes a turntable vertically and rotatably installed on the frame. The turntable is controlled by a motor to rotate. The turntable is located between the first wire stripping blade closest to the wire pulling chuck and the wire pulling chuck. A third pneumatic guide rail is horizontally arranged along the diameter direction of the turntable. The third pneumatic guide rail can move linearly along the straight groove. A tinning chuck is arranged at one end of the third pneumatic guide rail. The third pneumatic guide rail can drive the tinning chuck to move linearly. The tinning chuck is also a pneumatic chuck. A rosin groove for storing molten rosin and a tin groove for storing molten metal tin are respectively arranged on the frame under the turntable.

[0015] After wire stripping is completed, the silicone wire that has been cut and stripped is clamped by the soldering chuck. The rotation of the turntable drives the soldering chuck and the stripped silicone wire clamped by the soldering chuck to rotate. When the soldering chuck clamps the silicone wire and faces the rosin tank, the third pneumatic guide rail drives the soldering chuck to move linearly towards the rosin tank, inserting the core of the stripped silicone wire into the rosin tank to dip in rosin. Subsequently, the third pneumatic guide rail drives the soldering chuck to retract, and the turntable drives the soldering chuck to rotate again. When the soldering chuck clamps the silicone wire and faces the tin tank, the third pneumatic guide rail drives the soldering chuck to move linearly towards the tin tank, inserting the core of the stripped silicone wire into the tin tank to dip in tin, realizing automatic soldering operation. This further improves the automation level of the equipment, saves the cost of manual soldering, and improves the efficiency of the silicone wire from wire cutting, wire stripping to soldering completion. Compared with manual soldering, it ensures the stability of the quality of the soldering step.

[0016] Preferably, an installation plate is fixedly installed on the output shaft of the first cylinder, the cutting tool is fixedly installed on the installation plate, two air nozzles are arranged on the installation plate, the two air nozzles are symmetrically arranged left and right with respect to the cutting tool, the air nozzles are both directly above the axis of the first wire stripping port, and a gas supply assembly for supplying gas to the air nozzles is further arranged on the installation plate.

[0017] After wire stripping is completed, the air nozzles blow air downward, and the outer layer of the silicone wire remaining between the first wire stripping blade and the cutting tool can be blown by the air flow and fall from between the first wire stripping blade and the cutting tool, avoiding affecting subsequent wire cutting and wire stripping operations and improving the stability of the equipment during operation.

[0018] Preferably, a storage groove is arranged between the first wire stripping blade and the support table, and the storage groove is used to collect the remaining silicone outer layer after the silicone wire is stripped. By setting the storage groove to store the silicone outer layer of the stripped silicone wire, it is possible to prevent the silicone outer layer of the silicone wire from falling and scattering everywhere, and at the same time, it can also prevent the silicone outer layer of the silicone wire from falling into the rosin tank or the tin tank and affecting subsequent soldering operations, ensuring the stable operation of the equipment. The storage groove for storing the stripped silicone outer layer also helps to perform subsequent centralized processing of the silicone outer layer of the silicone wire, reducing the time required for cleaning the silicone outer layer.

[0019] Preferably, two clamping assemblies are provided on the turntable, and the two clamping assemblies are symmetrically arranged about the cutting tool left and right. Each clamping assembly includes a pair of spring grooves, and the two spring grooves are symmetrically arranged about the axis of the first wire stripping opening on the turntable front and back. A pressing block is horizontally slidably mounted on the turntable on the side of each spring groove. A clamping block is fixedly mounted on the side wall of each pressing block, and the clamping block is slidably mounted inside the spring groove. A return spring is arranged inside each spring groove, and the return spring is used to keep the clamping block horizontally pushed in a direction away from the axis of the first wire stripping opening. A convex block is arranged on the top of each clamping block, and an inclined guiding slope is arranged on each convex block. Four pressing blocks are arranged at the bottom of the mounting plate, and the four pressing blocks correspond to the four convex blocks of the two clamping assemblies. When the mounting plate moves downward, the four pressing blocks respectively press the guiding slopes on the four convex blocks and drive the pressing blocks to horizontally move in the direction of the axis of the first wire stripping opening at the same time.

[0020] When the cutting tool cuts the silicone wire, the pressing blocks move downward together with the mounting plate. Finally, the pressing blocks will press down on the guiding slopes on the convex blocks from top to bottom. The guiding slopes will decompose the downward pressure given by the pressing blocks into a downward pressure and a horizontal component force. In this way, the four pressing blocks will drive the four convex blocks to horizontally move in the direction of the axis of the first wire stripping opening at the same time. And the convex blocks are fixedly connected to the pressing blocks, so the pressing blocks will also horizontally move in the direction of the axis of the first wire stripping opening together, and the return springs are compressed by force. When the pressing blocks horizontally move in the direction of the axis of the first wire stripping opening, they can squeeze the end of the cut silicone wire. When the wire pulling chuck and the wire feeding chuck pull the silicone wire in a direction away from the cutting tool, the pressing blocks squeeze the outer layer of the silicone wire, which can further prevent the outer layer of the silicone wire from leaving the cutting tool and the first wire stripping blade together from the first wire stripping opening and the second wire stripping opening, avoiding the occurrence of wire stripping failure and further improving the stability of the equipment operation.

[0021] In addition, when squeezing the end of the silicone wire, the pressing blocks can also squeeze the wire core formed by winding multiple strands of metal wires when stripping the silicone wire with a wire core formed by winding multiple strands of metal wires, avoiding the situation that the wire core formed by winding multiple strands of metal wires is scattered after wire stripping and further ensuring the tinning effect.

[0022] Preferably, the air supply assembly includes a sleeve, a top plate is arranged at the top of the sleeve, the mounting plate is located inside the sleeve and is in close fit with the inner wall of the sleeve. An air cavity is formed between the mounting plate, the top plate and the sleeve. The air nozzle is communicated with the air cavity. A through hole is opened on the top plate, and the output shaft of the first cylinder passes through the through hole and extends into the air cavity to be fixedly connected with the mounting plate. The output shaft of the first cylinder is in close fit with the through hole.

[0023] By setting up an air cavity as the air supply component, after wire stripping is completed, by controlling the first cylinder to drive the mounting plate to move upward relative to the sleeve, the space of the air cavity can be contracted, and the air inside the air cavity can be squeezed out from the air nozzle. In this way, the air nozzle can eject an air flow to impact the silicone outer layer remaining after wire stripping, causing the remaining silicone outer layer after wire stripping to fall into the storage groove.

[0024] Compared with connecting other external air supply devices, it can save the cost required for equipment manufacturing and maintenance costs. At the same time, there is no need to separately control the air supply and stop of the air supply device, which helps to reduce the control cost of the equipment.

[0025] Preferably, a plurality of one-way valves are provided on the sleeve. The one-way valves are communicated with the air cavity, and the one-way valves allow gas outside the sleeve to enter the air cavity unidirectionally.

[0026] When the cutting tool moves downward to cut the silicone wire, when the sleeve remains stationary, the mounting plate needs to move relative to the sleeve. At this time, due to the increase in the space of the air cavity, the air pressure inside the air cavity is less than the external air pressure. Before the air pressure inside the air cavity becomes the same as the external air pressure due to the air flowing from the outside into the air cavity through the air nozzle, the downward movement of the cutting tool relative to the sleeve will be hindered by the negative pressure inside the air cavity. By adding one-way valves, the external air pressure can quickly enter the air cavity to reduce the hindrance of the negative pressure inside the air cavity to the cutting tool, which helps to improve the operating stability of the equipment and ensure the cutting efficiency of the cutting tool for the silicone wire.

[0027] When the cutting tool moves upward relative to the sleeve, the relative movement between the mounting plate and the sleeve squeezes the air inside the air cavity out of the air cavity. At this time, the gas cannot be discharged from the one-way valve outside the air cavity and can only be discharged from the air nozzle outside the air cavity, which helps to ensure the gas flow rate at the air nozzle and ensure that the air nozzle can blow the remaining silicone outer layer into the storage groove, guaranteeing the operating stability of the equipment.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0029] 1. For a fully automatic precision silicone wire cutting and tinning device designed by the present invention, by cooperating the wire pulling chuck with the second pneumatic guide rail, the wire feeding method of the silicone wire is changed to a wire pulling method, effectively preventing the slippage between the roller and the silicone wire during the wire feeding process, improving the cutting accuracy of the silicone wire, and by setting up a wire stripping component and a tinning component, automatic wire stripping and automatic tinning are carried out after wire cutting, improving the efficiency of silicone wire cutting and tinning.

[0030] 2. A fully automatic precision silicone wire cutting and tinning device designed by the present invention further comprises a clamping assembly disposed on the support table. When the silicone wire is cut, the clamping assembly presses the cut end of the silicone wire, which helps to fix the silicone outer layer of the silicone wire during the wire stripping operation of the device, facilitating the extraction of the wire core from the silicone outer layer. At the same time, the clamping assembly also helps to press the wire core at the cut end, preventing the wire core from spreading after being extracted from the silicone outer layer, thereby improving the quality of tinning.

[0031] 3. A fully automatic precision silicone wire cutting and tinning device designed by the present invention further comprises a nozzle disposed on the mounting plate. After wire stripping, the first cylinder controls the mounting plate to move upward and reset, squeezing the air inside the air chamber, so that the gas inside the air chamber is ejected downward from the nozzle, facilitating the blowing of the stripped silicone outer layer into the storage groove, avoiding the stripped silicone outer layer from affecting the subsequent wire cutting and wire stripping operations, and improving the operating stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic three-dimensional structure diagram of the present invention;

[0033] Figure 2 of the present invention Figure 1 is an enlarged view of part A in;

[0034] Figure 3 is a front view of the present invention;

[0035] Figure 4 of the present invention Figure 3 is an enlarged view of part B in;

[0036] Figure 5 is a schematic diagram of the internal structure of the sleeve and the storage groove in the present invention;

[0037] Figure 6 is a three-dimensional structure diagram of the clamping assembly in the present invention;

[0038] Figure 7 of the present invention Figure 6 is an enlarged view of part C in;

[0039] Figure 8 is a schematic diagram of the cooperation relationship between the pressing block, the extrusion block and the convex block in the present invention;

[0040] Figure 9 is a schematic diagram of the rotation of the turntable during the tinning step of the present invention.

[0041] In the figure: 1, frame; 2, wire feeding chuck; 3, first pneumatic guide rail; 4, second pneumatic guide rail; 5, cutting tool; 6, support table; 7, first cylinder; 8, second cylinder; 9, first wire stripping blade; 10, sleeve; 11, third cylinder; 12, second wire stripping blade; 13, first wire stripping opening; 14, second wire stripping opening; 15, turntable; 16, third pneumatic guide rail; 17, rosin tank; 18, tin tank; 19, mounting plate; 20, air nozzle; 21, spring groove; 22, extrusion block; 23, clamping block; 24, return spring; 25, bump; 26, guiding slope; 27, top plate; 28, air chamber; 29, through hole; 30, one-way valve; 31, cage; 32, clamping assembly; 33, silicone wire; 34, pressing block; 35, storage groove; 36, tinning chuck; 37, wire pulling chuck; H, wire stripping distance. Detailed implementation mode

[0042] Please refer to Figures 1 to 9 , the present invention provides a fully automatic precision silicone wire cutting and tinning device, and the technical solution is as follows:

[0043] A fully automatic precision silicone wire cutting and tinning device, referring to , including a frame 1, a wire feeding chuck 2 is arranged at one end of the frame 1, the wire feeding chuck 2 is a pneumatic chuck, a first pneumatic guide rail 3 for controlling the horizontal movement of the wire feeding chuck 2 is arranged on the frame 1, a wire pulling chuck 37 is arranged on the other side of the frame 1, a second pneumatic guide rail 4 for driving the horizontal movement of the wire pulling chuck 37 is arranged on the frame 1, the wire pulling chuck 37 is a pneumatic chuck, a first cylinder 7 is arranged on the frame 1, the output end of the first cylinder 7 is arranged downward, the first cylinder 7 is located between the wire feeding chuck 2 and the wire pulling chuck 37, a mounting plate 19 is fixedly installed on the output shaft of the first cylinder 7, a cutting tool 5 is fixedly installed at the bottom of the mounting plate 19, the cutting edge of the cutting tool 5 is arranged downward, a support table 6 for supporting the silicone wire 33 when the cutting tool 5 cuts the silicone wire 33 is arranged directly below the cutting tool 5, a second cylinder 8 is arranged on the frame 1, the output end of the second cylinder 8 is arranged upward, and the second cylinder 8 is used to control the up and down movement of the support table 6. A cage 31 for maintaining stable wire feeding is also arranged on the frame 1.

[0044] Refer to Figures 1 to 4 , , Figure 2 , Figure 4 and Figure 5, a wire stripping assembly for stripping the silicone of the silicone wire 33 is further provided on the frame 1. The wire stripping assembly includes two first wire stripping blades 9 respectively and fixedly installed on the left and right sides of the support table 6. The first wire stripping blades 9 are symmetrically arranged about the cutting tool 5 left and right. The distance between the first wire stripping blade 9 and the cutting tool 5 in the horizontal direction is the wire stripping distance H. In this embodiment, the wire stripping distance H is set to 1 cm. In addition, the length of the wire stripping distance H can also be set according to the actual production of itself. A sleeve 10 is further provided on the frame 1, and a third cylinder 11 is further provided on the frame 1. The third cylinder 11 is used to drive the sleeve 10 to move up and down. Two second wire stripping blades 12 are fixedly installed on the sleeve 10. The two second wire stripping blades 12 are respectively located directly above the two first wire stripping blades 9. A semi-circular first wire stripping opening 13 is provided at the cutting edge of the first wire stripping blade 9. A semi-circular second wire stripping opening 14 corresponding to the first wire stripping opening 13 is provided at the cutting edge of the second wire stripping blade 12. The diameter of the second wire stripping opening 14 is the same as that of the first wire stripping opening 13. When the first wire stripping blade 9 abuts against the second wire stripping blade 12, the first wire stripping opening 13 and the second wire stripping opening 14 form a complete circle. The diameter of the first wire stripping opening 13 is smaller than the diameter of the silicone outer layer of the silicone wire 33 and greater than or equal to the diameter of the wire core of the silicone wire 33. In this embodiment, the diameters of the first wire stripping opening 13 and the second wire stripping opening 14 are both the same as the diameter of the wire core of the silicone wire 33.

[0045] Reference Figure 6 , a storage groove 35 is provided between the first wire stripping blade 9 and the support table 6. Two air nozzles 20 are provided on the mounting plate 19. The two air nozzles 20 are symmetrically arranged about the cutting tool 5 left and right. The air nozzles 20 are both located directly above the axis of the first wire stripping opening 13. A gas supply assembly for supplying gas to the air nozzles 20 is further provided on the mounting plate 19. The gas supply assembly includes a sleeve 10. A top plate 27 is provided at the top of the sleeve 10. The mounting plate 19 is located inside the sleeve 10 and is in close contact with the inner wall of the sleeve 10. An air chamber 28 is formed between the mounting plate 19, the top plate 27 and the sleeve 10. The air nozzles 20 are communicated with the air chamber 28. A through hole 29 is provided on the top plate 27. The output shaft of the first cylinder 7 passes through the through hole 29 and extends into the air chamber 28 to be fixedly connected with the mounting plate 19. The output shaft of the first cylinder 7 is in close contact with the through hole 29. A plurality of one-way valves 30 are provided on the sleeve 10. The one-way valves 30 are communicated with the air chamber 28. The one-way valves 30 allow the gas outside the sleeve 10 to enter the air chamber 28 unidirectionally.

[0046] Reference Figure 8, two sets of clamping components 32 are also arranged on the supporting table 6. The two sets of clamping components 32 are symmetrically arranged about the cutting tool 5 left and right. Each set of clamping components 32 includes a pair of spring grooves 21. The two spring grooves 21 are symmetrically arranged about the axis of the first wire stripping opening 13 before and after on the supporting table 6. A pressing block 22 is horizontally slidably installed on the supporting table 6 on the side of each spring groove 21. A clamping block 23 is fixedly installed on the side wall of the pressing block 22. The clamping block 23 is slidably installed inside the spring groove 21. A return spring 24 is arranged inside each spring groove 21. The return spring 24 is used to keep pushing the clamping block 23 horizontally in the direction away from the axis of the first wire stripping opening 13. A convex block 25 is arranged on the top of each clamping block 23. An inclined guiding slope 26 is arranged on the convex block 25. Four pressing blocks 34 are arranged at the bottom of the mounting plate 19. The four pressing blocks 34 correspond to the four convex blocks 25 of the two sets of clamping components 32. When the mounting plate 19 moves downward, the four pressing blocks 34 respectively press the guiding slopes 26 on the four convex blocks 25 and drive the pressing blocks 22 to horizontally move towards the axis of the first wire stripping opening 13 simultaneously.

[0047] In addition, refer to Figure 5 , a soldering component for soldering is also arranged on the frame 1. The soldering component includes a turntable 15 vertically and rotatably installed on the frame 1. The turntable 15 is controlled by a motor to rotate. The turntable 15 is located between the first wire stripping blade 9 closest to the wire pulling chuck 37 and the wire pulling chuck 37. A third pneumatic guide rail 16 is horizontally arranged along the diameter direction of the turntable 15. A soldering chuck 36 is arranged at one end of the third pneumatic guide rail 16. A rosin groove 17 for storing molten rosin and a tin groove 18 for storing molten metal tin are respectively arranged on the frame 1 below the turntable 15.

[0048] Before use, refer to Figures 5 to 8 and , the silica gel wire 33 is pulled from the wire feeding chuck 2 towards the wire pulling chuck 37 and passed through the cage 31, and then the silica gel wire 33 is continuously pulled towards the wire pulling chuck 37 to the wire feeding chuck 2. The pneumatic wire feeding chuck 2 first clamps the silica gel wire 33, and makes the end of the silica gel wire 33 exceed the wire feeding chuck 2 by 2 - 3 cm. Then, the end of the silica gel wire 33 beyond the wire feeding chuck 2 is manually wire stripped first, and the silica gel outer layer of the silica gel wire 33 at the wire head is stripped off by 1 cm. It is necessary to ensure that the projection of the axis of the silica gel wire 33 on the vertical direction coincides with the axis of the first wire stripping opening 13. In addition, molten rosin needs to be injected into the rosin groove 17, and molten tin liquid needs to be injected into the tin groove 18, and it is necessary to use a heating wire or other heating components to keep heating the rosin groove 17 and the tin groove 18 to prevent the rosin in the rosin groove 17 or the tin liquid in the tin groove 18 from solidifying and hardening. So far, the preparation work is basically completed.

[0049] During use, refer toFigures 2 to 5 , start the device. First, the wire-pulling chuck 37 moves towards the wire-feeding chuck 2 driven by the second starting guide rail. When the wire-feeding chuck 2 moves to the end of the silicone wire 33, the wire-feeding chuck 2 clamps the silicone wire 33 at a position 2 cm from the end of the silicone wire 33. Subsequently, the wire-feeding chuck 2 opens and releases the silicone wire 33. Then, the second pneumatic guide rail 4 pulls the silicone wire 33 back in the direction away from the wire-feeding chuck 2 and stops at a position 10 cm after the end of the silicone wire 33 has passed the cutting tool 5. At this time, the tinning chuck 36 is in the open state, and the tinning chuck 36 is located between the first wire-stripping blade 9 closest to the wire-feeding chuck 2 and the pulling chuck. Then the tinning chuck 36 closes to clamp the silicone wire 33. At the same time, the wire-feeding chuck 2 also closes to re-clamp the silicone wire 33. Subsequently, the second pneumatic guide rail 4 drives the wire-pulling chuck 37 to continue moving back in the direction away from the wire-pulling chuck 37 and stops after reaching the initial position. Thus, the steps of pulling the silicone wire 33 and determining the cutting length have been completed. At this time, the silicone wire 33 is in a straight state under the pulling of the wire-feeding chuck 2 and the tinning chuck 36.

[0050] After that, refer to and Figure 1, the device starts to cut the silicone wire 33. First, the second cylinder 8 drives the support table 6 and the first wire stripping blade 9 fixedly connected to the support table 6 to move upward together until the top surface of the support table 6 is flush with the bottom surface of the silicone wire 33. At this time, the first wire stripping blade 9 starts to cut into the silicone outer layer of the silicone wire 33 from below, and the first wire stripping opening 13 contacts and fits with the outer wall of the wire core. Then, the output shaft of the first cylinder 7 extends downward and drives the mounting plate 19 and the cutting tool 5 to move downward. At this time, due to the downward movement of the mounting plate 19, the space of the air chamber 28 increases, and the inside of the air chamber 28 is in a negative pressure state, and starts to absorb external air into the air chamber 28 from the air nozzle 20 and the one-way valve 30. As the mounting plate 19 continues to move downward, the cutting tool 5 starts to contact the silicone wire 33, and as the mounting plate 19 continues to move downward, the cutting tool 5 starts to cut the silicone wire 33. During the cutting process, the four pressing blocks 34 on the mounting plate 19 will press onto the guiding slopes 26 on the four bumps 25 from top to bottom at the same time. The guiding slopes 26 will decompose the downward pressure applied by the pressing blocks 34 to the bumps 25 into a downward pressure and a horizontal component force. In this way, the four pressing blocks 34 will drive the four bumps 25 to move horizontally in the axial direction of the first wire stripping opening 13 (i.e., the axial direction of the silicone wire 33) at the same time, and the four return springs 24 are all compressed. The two pairs of extrusion blocks 22 clamp the silicone wire 33 from the left and right sides of the cutting tool 5 respectively. When the extrusion blocks 22 clamp the silicone wire 33, the relationship between the extrusion blocks 22, the pressing blocks 34, and the cutting tool 5 can be set as follows: when the cutting tool 5 is in contact with the top surface of the support table 6 (i.e., when the silicone wire 33 is completely cut), the pressing blocks 34 press the guiding slopes 26 and make the minimum distance between a pair of extrusion blocks 22 on the same side of the cutting tool 5 the same as the diameter of the wire core.

[0051] Reference Figure 3 , as the cutting tool 5 moves downward to contact the top surface of the support table 6, the silicone wire 33 is completely cut. At this time, the pressing blocks 34 clamp the ends of the two sections of the silicone wire 33 from both sides of the cutting tool 5 respectively, which helps to prevent the wire core of the silicone wire 33 made of multiple strands of metal wires from becoming loose after wire stripping, and ensures that the wire core is tightened into one strand during subsequent tinning.

[0052] Reference Figures 1 to 4After the silicone wire 33 is cut, the third cylinder 11 drives the sleeve 10 and the second stripping blade 12 on the sleeve 10 to move downward together until the cutting edge of the second stripping blade 12 is in contact with the cutting edge of the first stripping blade 9. At this time, the second stripping blade 12 cuts the silicone outer layer of the silicone wire 33 from top to bottom, and makes the semicircular second stripping opening 14 fit with the outer wall of the core of the silicone wire 33. At this time, the first stripping blade 9 cooperates with the second stripping blade 12 to perform circular cutting of the outer layer of the silicone wire 33 at the positions of the two first stripping openings 13.

[0053] Then, refer to and Figure 2 The first pneumatic guide rail 3 drives the wire feeding clamp to move horizontally 1 cm away from the wire pulling clamp with the silicone wire 33. Under the restriction of the first wire stripping opening 13 and the second wire stripping opening 14 near the side of the wire feeding clamp and the two extrusion blocks 22 near the side of the wire feeding clamp on the silicone outer layer of the silicone wire 33, the silicone wire 33 clamped by the wire feeding clamp is stripped 1 cm from the end. The silicone outer layer of the silicone wire 33 remains between the first wire stripping blade 9 near the side of the wire feeding clamp and the cutting tool 5. Subsequently, the silicone wire 33 held by the upper soldering chuck 36 is also driven by the third pneumatic guide rail 16 to move 1 cm toward the wire-pulling jaws. With the first and second stripping openings 13 and 14 near the upper soldering chuck 36 and the two extrusion blocks 22 near the upper soldering chuck 36 restraining the silicone wire 33's outer layer, the silicone wire 33 held by the upper soldering chuck 36 is stripped 1 cm from the end of the wire. The stripped silicone wire 33's outer layer remains between the first stripping blade 9 and the cutting tool 5 near the upper soldering chuck 36. Automatic stripping of the silicone wire 33 is now complete.

[0054] Then, refer to Figures 5 to 8 , the first cylinder 7 drives the mounting plate 19 to move upward and reset. When the mounting plate 19 is reset upward, the relative position of the mounting plate 19 and the sleeve 10 changes again. The air cavity 28 inside the sleeve 10 is squeezed by the upward movement of the mounting plate 19, and the gas inside the air cavity 28 is ejected downward from the air nozzle 20 to the outside of the air cavity 28. Due to the upward movement of the mounting plate 19, the four pressing blocks 34 no longer squeeze the four guide slopes 26. Under the elastic reset of the reset spring 24, the four squeezing blocks 22 all move horizontally in the direction away from the axis of the first stripping port 13 at the same time, that is, the squeezing blocks 22 no longer squeeze the silicone outer layer of the silicone wire 33 left directly below the sleeve 10. With the airflow blown downward by the air nozzle 20, the peeled silicone outer layer of the silicone wire 33 will be blown toward the receiving groove 35 below, and the peeled silicone outer layer of the silicone wire 33 is collected inside the receiving groove 35. Afterwards, the third cylinder 11 drives the sleeve 10 to move upward to return to the initial position, and the second cylinder 8 also drives the support platform 6 and the first stripping blade 9 to move downward to reset.

[0055] Afterwards, refer to Figures 6 to 8 Figure 5 Figure 3 Figure 5 Figure 5 Figure 9 The equipment begins automatically tinning the silicone wire 33, which has been cut to the specified length and stripped. At the start of the tinning process, the tinning chuck 36 holds the already-cut-to-specified, stripped silicone wire 33. The turntable 15 begins to rotate the tinning chuck 36 counterclockwise and downward. When the tinning chuck 36 points toward the rosin slot 17, which contains molten rosin, the third pneumatic guide rail 16 extends the tinning chuck 36 toward the rosin slot 17. This causes the end of the silicone wire 33, originally facing the cutting tool 5, held by the tinning chuck 36, to extend into the rosin slot 17. This allows the core of the stripped silicone wire 33 to be exposed and coated with rosin. It is important to note that only the exposed core of the wire after stripping should be coated with rosin; the portion of the silicone wire 33 that retains the outer silicone layer should not be coated with rosin. The third pneumatic guide 16 then retracts the tinning chuck 36, and the turntable 15 again rotates the tinning chuck 36 counterclockwise until it faces the tin bath 18 containing molten tin. At this point, the third pneumatic guide 16 again extends the tinning chuck 36 toward the tin bath 18, causing the core portion of the silicone wire 33, already coated with rosin, to be coated with molten tin. The third pneumatic guide 16 then retracts the tinning chuck 36, and the turntable 15 then rotates the tinning chuck 36 clockwise to a horizontal position to complete the reset. At this point, the automatic tinning of the silicone wire 33 is complete, and only the tin solution needs to cool and harden. After the tin solution cools and hardens, the tinned silicone wire 33, held by the tinning chuck 36, can be removed for unloading. Unloading can be configured based on actual production needs and can be performed manually or automatically by a robotic arm. This embodiment does not further elaborate on this unloading operation.

[0056] At this point, the steps of automatic cutting, automatic stripping, and automatic tinning of the silicone wire 33 have been fully described. When continuous and repeated production is required, continuous production can be achieved by simply repeating the above operations in sequence.

[0057] A specific embodiment of the present invention has been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the embodiment described above. For those skilled in the art, various changes, modifications, substitutions, and variations to these embodiments without departing from the principles and ideas of the present invention should still fall within the scope of protection of the present invention.

Claims

1. An automatic precision silicone wire cutting and tin-plating device, comprising a frame (1), characterized in that, One end of the frame (1) is provided with a wire feeding chuck (2). A first pneumatic guide rail (3) for controlling the horizontal movement of the wire feeding chuck (2) is arranged on the frame (1). A wire pulling chuck (37) is arranged on the other side of the frame (1). A second pneumatic guide rail (4) for driving the wire pulling chuck (37) to move horizontally is arranged on the frame (1). The wire pulling chuck (37) is a pneumatic chuck. A cutting tool (5) is further arranged between the wire feeding chuck (2) and the wire pulling chuck (37). A first cylinder (7) for controlling the up and down movement of the cutting tool (5) is arranged on the frame (1). An installation plate (19) is fixedly installed on the output shaft of the first cylinder (7). The cutting tool (5) is fixedly installed on the installation plate (19). The cutting edge of the cutting tool (5) is arranged downward. A support table (6) is arranged directly below the cutting tool (5). A second cylinder (8) for controlling the up and down movement of the support table (6) is arranged on the frame (1). Two sets of clamping assemblies (32) are arranged on the support table (6). The two sets of clamping assemblies (32) are symmetrically arranged about the cutting tool (5) left and right. Each set of clamping assemblies (32) includes a pair of spring grooves (21). The two spring grooves (21) are arranged on the support table (6) at intervals front and back. A pressing block (22) is horizontally and slidably installed on the support table (6) on the side of each spring groove (21). A clamping block (23) is fixedly installed on the side wall of each pressing block (22). The clamping block (23) is slidably installed inside the spring groove (21). A return spring (24) is arranged inside each spring groove (21). A convex block (25) is arranged on the top of each clamping block (23). An inclined guiding slope (26) is arranged on each convex block (25). Four pressing blocks (34) are arranged at the bottom of the installation plate (19). The four pressing blocks (34) respectively correspond to the four convex blocks (25) of the two sets of clamping assemblies (32). A soldering tin assembly is further arranged on the frame (1). The soldering tin assembly includes a turntable (15) vertically and rotatably installed on the frame (1). The turntable (15) is controlled by a motor to rotate. A third pneumatic guide rail (16) is horizontally arranged along the diameter direction of the turntable (15). A soldering tin chuck (36) is arranged at one end of the third pneumatic guide rail (16). A rosin groove (17) for storing molten rosin and a tin groove (18) for storing molten metal tin are respectively arranged on the frame (1) below the turntable (15). A wire stripping assembly for stripping the silicone outer layer of the silicone wire (33) is further arranged on the frame (1).

2. The fully automatic precision silicone wire cutting and tin plating equipment according to claim 1, characterized in that, The wire stripping assembly includes two first wire stripping blades (9) respectively and fixedly installed on the left and right sides of the support table (6). The first wire stripping blades (9) are symmetrically arranged about the cutting tool (5) left and right. The horizontal distance between the first wire stripping blades (9) and the cutting tool (5) is the wire stripping distance (H). A sleeve (10) is further arranged on the frame (1), and a third air cylinder (11) is further arranged on the frame (1). The third air cylinder (11) is used to drive the sleeve (10) to move up and down. Two second wire stripping blades (12) are fixedly installed on the sleeve (10). The two second wire stripping blades (12) are respectively located directly above the two first wire stripping blades (9). A semi-circular first wire stripping opening (13) is arranged at the cutting edge of the first wire stripping blade (9). A semi-circular second wire stripping opening (14) with the same diameter is arranged at the cutting edge of the second wire stripping blade (12) corresponding to the first wire stripping opening (13). When the first wire stripping blade (9) abuts against the second wire stripping blade (12), the first wire stripping opening (13) and the second wire stripping opening (14) form a complete circle. The diameter of the first wire stripping opening (13) is smaller than the diameter of the silicone outer layer of the silicone wire (33) and greater than or equal to the diameter of the wire core of the silicone wire (33).

3. The fully automatic precision silicone wire cutting and tin plating equipment according to claim 2, wherein, Two air nozzles (20) are arranged on the mounting plate (19). The two air nozzles (20) are symmetrically arranged about the cutting tool (5) left and right. The air nozzles (20) are both located directly above the axis of the first wire stripping opening (13). A gas supply assembly for supplying gas to the air nozzles (20) is further arranged on the mounting plate (19).

4. The fully automatic precision silicone wire cutting and tin plating equipment according to claim 3, characterized in that, A storage groove (35) is arranged between the first wire stripping blade (9) and the support table (6). The storage groove (35) is used to collect the remaining silicone outer layer after the silicone wire (33) is wire stripped.

5. The fully automatic precision silicone wire cutting and tinning equipment according to claim 3, characterized in that, The gas supply assembly includes a sleeve (10). A top plate (27) is arranged at the top of the sleeve (10). The mounting plate (19) is located inside the sleeve (10) and is in close contact with the inner wall of the sleeve (10). An air cavity (28) is formed between the mounting plate (19), the top plate (27) and the sleeve (10). The air nozzles (20) are communicated with the air cavity (28). A through hole (29) is opened on the top plate (27). The output shaft of the first air cylinder (7) passes through the through hole (29) and extends into the air cavity (28) to be fixedly connected with the mounting plate (19). The output shaft of the first air cylinder (7) is in close contact with the through hole (29).

6. The fully automatic precision silicone wire cutting and tin plating equipment according to claim 5, characterized in that, A plurality of one-way valves (30) are arranged on the sleeve (10). The one-way valves (30) are communicated with the air cavity (28). The one-way valves (30) allow the gas outside the sleeve (10) to enter the air cavity (28) unidirectionally.

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