A patch fuse automatic assembly device

Abstract

The utility model discloses a kind of patch fuse automatic assembly device, comprising: rotary disc, chuck jaw is arranged on rotary disc along disc circumference interval, and feeding channel, two vertical reciprocating movement's perforating needle, vertical reciprocating movement's wire feeding clamp, first tin conduit, horizontal reciprocating movement's tangent cutter, vertical reciprocating movement's first milling cutter, overturning assembly, sand outlet, second tin conduit, vertical reciprocating movement's second milling cutter are sequentially arranged along rotary disc circumferential outside interval;The discharge end of feeding channel is provided with feeding clamp;Because it needs to fill sand to porcelain tube in the assembly process of traditional fuse automatic assembly device, therefore copper cap cannot be directly installed in the both ends of porcelain tube, affect assembly efficiency, and the device is perforated to copper cap in both ends of porcelain tube by perforating needle, so that the aperture of copper cap in the top of porcelain tube is used to hold fuse, and the aperture of copper cap in lower end is used to fill sand, save production space layout resource, and production efficiency is significantly improved.

Description

Technical Field

[0001] This utility model relates to the field of automated mechanical processing, specifically to an automatic assembly device for surface-mount fuses. Background Technology

[0002] In the traditional assembly process of automatic fuse assembly equipment, sand needs to be poured into the ceramic tube. Therefore, copper caps cannot be directly installed at both ends of the ceramic tube. The process is to first install a copper cap at one end of the ceramic tube, then flip the ceramic tube so that the other end faces upwards to pour sand, and then install another copper cap on the ceramic tube. This assembly process is cumbersome and relies on the mechanical connection of multi-station equipment, which occupies a lot of production space and layout resources, and also affects production efficiency.

[0003] Therefore, designing an automated fuse assembly device that can save production space and increase production efficiency has become an urgent problem to be solved. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an automatic assembly device for patch fuses.

[0005] This utility model provides an automatic assembly device for patch fuses, comprising: A rotating disk has several grippers spaced along its circumference. Along the outer circumference of the rotating disk are a feeding channel, two vertically reciprocating piercing needles, a vertically reciprocating wire feeder, a first solder feeding guide, a horizontally reciprocating tangent, a vertically reciprocating first milling cutter, a flipping assembly, a sand outlet nozzle, a second solder feeding guide, and a vertically reciprocating second milling cutter. The discharge end of the feeding channel is equipped with a feeding clamp. When the clamp moves to the position to pick up the ceramic tube, the feeding clamp moves horizontally to send the ceramic tube from the discharge end to the clamp. As the jaws pass through the perforation position and the molten wire insertion position in sequence, the perforation needles are located at the upper and lower ends of the jaws respectively. The vertical movement of the perforation needles at the upper and lower ends corresponds to piercing the copper caps at the top and bottom of the ceramic tube respectively. The wire feed clamp moves vertically downward to feed the molten wire into the ceramic tube. A cutting scissor is also provided between the wire feed clamp and the jaws. As the clamping jaws sequentially pass through the first welding position, the second cutting position, and the first leveling position of the welding surface, the first solder feeding guide delivers the solder wire to the copper cap at the top of the ceramic tube and performs soldering through the first heating coil; the tangent moves horizontally to cut the exposed molten wire at the lower end of the ceramic tube; the first milling cutter rotates vertically to cut and level the welding surface; As the grippers sequentially pass through the flipping position, sand filling position, secondary welding position, and secondary leveling position of the weld surface, the flipping assembly flips the ceramic tube so that the copper cap at the lower end of the ceramic tube faces upward; the sand outlet nozzle fills the ceramic tube with sand from above; the second solder feeding guide delivers the solder wire to the top of the upward-facing copper cap and performs soldering through the second heating coil; the second milling cutter rotates vertically to cut and level the weld surface.

[0006] Furthermore, guide blocks are respectively provided between the two perforating needles and the gripper, and the guide blocks have guide channels; The top of the piercing needle located above the gripper is connected to a telescopic cylinder, and its bottom extends downward into the guide channel of the corresponding guide block. The bottom of the piercing needle located below the gripper is connected to a telescopic cylinder, and its top extends upward into the guide channel of the corresponding guide block. Limit blocks are installed on both perforating needles.

[0007] Furthermore, a cooling air pipe is also provided at an interval between the second heating coil and the second milling cutter.

[0008] Furthermore, the automatic assembly device also includes a first fixed bracket, a first slider is slidably connected to the first fixed bracket, a telescopic cylinder is connected to the top of the first slider, a drive motor is fixedly mounted on the first slider, and the output end of the drive motor is connected to the first milling cutter. The automatic assembly device also includes a second fixed bracket, a second slider is slidably connected to the second fixed bracket, a telescopic cylinder is connected to the top of the second slider, a drive motor is fixedly installed on the second slider, and the output end of the drive motor is connected to the second milling cutter.

[0009] Furthermore, a vibratory feeder is connected to the inlet end of the feeding channel, and a telescopic cylinder is connected to the back of the feeding clamp.

[0010] Furthermore, the automatic assembly device also includes a third fixed bracket, on which guide wheels are arranged in a staggered manner along the vertical direction. A melting wire roller is arranged above the guide wheels, and a pair of wire feeding wheels are arranged symmetrically in front and behind below the guide wheels. The wire feeding clamp is located directly below the wire feeding wheels. The third fixed bracket has a sliding connection to a third slider, the top surface of which is connected to a telescopic cylinder, and its bottom surface is fixedly connected to a wire feed clamp. The cutting shears are connected to a drive cylinder.

[0011] Furthermore, a first solder wire roller is provided on the outside of the feed port of the first solder feeding conduit, a first guide wheel is provided between the first solder feeding conduit and the first solder wire roller, a pair of first wire feeding posts are provided between the first solder feeding conduit and the first guide wheel, and a drive motor is connected to the first wire feeding posts. The first heating coil is located between the first solder feeding conduit and the clamp; A second solder wire roller is provided on the outside of the inlet of the second solder feeding conduit. A second guide wheel is provided between the second solder feeding conduit and the second solder wire roller. A pair of second wire feeding posts are provided between the second solder feeding conduit and the second guide wheel. The second wire feeding posts are connected to a drive motor. The second heating coil is located between the second solder feeding conduit and the clamp.

[0012] Furthermore, the flipping assembly includes a flipping clamp connected to a flipping cylinder, and the flipping clamp is also connected to a telescopic cylinder.

[0013] Furthermore, there are two sand outlets, which are spaced apart and connected to the sand storage tank. Each of the two sand outlets is equipped with a gripping clamp below it, and a telescopic cylinder is installed at the end of the gripping clamp. A vibrating column is also installed on the outside of the right sand outlet, with a telescopic cylinder connected to the top of the vibrating column and a vibrating block installed at the bottom of the vibrating column. The automatic assembly device also includes a receiving frame with a strip-shaped opening. The position of the strip-shaped opening overlaps with the movement trajectory of the gripper. Two sand outlets and a vibrating column are all located inside the receiving frame.

[0014] Furthermore, the cutting blade is located directly below the gripper, a fixing block is provided on the outside of the cutting blade head, and a telescopic cylinder is connected to the tail of the cutting blade.

[0015] In summary, the present invention has the following advantages compared with the prior art: This product addresses the problem of traditional assembly processes requiring step-by-step installation of copper caps at both ends of ceramic tubes, which is cumbersome and requires significant space for processing machinery. The feeding channel of this device transports semi-finished ceramic tubes pre-loaded with copper caps at both ends. The device achieves differentiated perforation through symmetrically arranged, vertically reciprocating perforating needles. The perforating needles above the grippers only need to penetrate the copper cap at the top of the ceramic tube with their tips, fulfilling the need for subsequent perforation through the opening in the copper cap and clamping of the fuse. The perforating needles below the grippers penetrate the copper cap at the bottom of the ceramic tube with their tips. The needle continues to move upward, expanding the opening size of the copper cap at the bottom to meet the subsequent sand filling requirements. With the help of the flipping component, the ceramic tube is precisely flipped so that the opening of the copper cap at the bottom faces upward, directly connecting to the sand nozzle to complete the sand filling operation. This design eliminates the redundant steps in the traditional process of first installing the copper cap at one end of the ceramic tube, then filling with sand, and then installing the other copper cap onto the ceramic tube. It reduces the number of mechanical connection links at multiple workstations, saving production space layout resources and significantly shortening the production cycle of fuses, thus significantly improving the production efficiency of fuses. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings: Figure 1A schematic diagram of the automatic fuse assembly device provided in this application; Figure 2 This application document provides a structural diagram of the component when the gripper moves past the position for gripping the ceramic tube and the position for the first detection of the copper cap. Figure 3 The component structure diagram provided in this application document shows the movement of the gripper through the perforation position and the first correction position of the ceramic tube. Figure 4 A structural diagram of the component provided in this application document when the gripper moves to the fuse thread position; Figure 5 This application document provides a structural diagram of the component when the gripper moves past the first adjustment position of the fuse, the second adjustment position of the fuse, and the fuse length detection position. Figure 6 A structural diagram of the component provided in this application when the gripper moves to the first welding position; Figure 7 The component structure diagram provided in this application document shows the movement of the gripper through the secondary cutting position and the primary welding inspection position. Figure 8 The component structure diagram provided in this application document when the gripper moves to the first leveling position of the welding surface; Figure 9 A structural diagram of the components provided in this application when the gripper moves to the flip position; Figure 10 A structural diagram of the components provided in this application when the gripper moves to the sand-filling position; Figure 11 A structural diagram of the component provided in this application when the gripper moves to the secondary welding position; Figure 12 The component structure diagram provided in this application document shows the movement of the gripper through the rapid solidification position of the weld surface, the secondary leveling position of the weld surface, and the dust blowing position. Figure 13 This application document provides a structural diagram of the components when the gripper moves to the defective product collection position.

[0017] Figure label: 1-Rotating disk; 2-Gripper; 3-Feeding channel; 4-Piercing needle; 5-Wire feed clamp; 6-First solder feeding guide; 7-Wire cutter; 8-First milling cutter; 9-Sand outlet nozzle; 10-Second solder feeding guide; 11-Second milling cutter; 12-Feeding clamp; 13-First heating coil; 14-Second heating coil; 15-Guide block; 16-Limit block; 17-First fixed bracket; 18-First slider; 19-Telescopic cylinder; 20-Drive motor; 21-Second fixed bracket; 22-Second slider; 23-Vibrating disk; 24-Third fixed bracket; 25-Wire guide wheel; 26-Fuse wire roller; 27-Wire feed wheel; 28-Third slider; 29-Cutting... 30-Scissors; 31-Drive cylinder; 32-First solder wire roller; 33-First guide roller; 34-First wire feeding post; 35-Second solder wire roller; 36-Second guide roller; 37-Flip clamp; 38-Flip cylinder; 39-Sand storage tank; 40-Vibrating column; 41-Vibrating block; 42-Receiving frame; 43-Metal induction switch; 44-Air blowing pipe; 45-Electrical detection clamp; 46-Push block; 47-Collection bucket; 48-Electric push rod; 49-Fixing column; 50-First vibrator; 51-Second vibrator; 52-Fixing clamp; 53-CCD camera; 54-Fixing block; 55-Grabbing clamp; 56-Cold air pipe. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] According to one embodiment of this utility model, please refer to the following: Figures 1-13 An automatic assembly device for surface mount fuses, comprising: A rotating disk 1 has several grippers 2 spaced along its circumference. Along the outer circumference of the rotating disk 1, there are a feeding channel 3, two vertically reciprocating piercing needles 4, a vertically reciprocating wire feeder 5, a first solder feeding guide 6, a horizontally reciprocating tangent 7, a vertically reciprocating first milling cutter 8, a flipping assembly, a sand outlet 9, a second solder feeding guide 10, and a vertically reciprocating second milling cutter 11. The discharge end of the feeding channel 3 is equipped with a feeding clamp 12. When the clamp 2 moves to the position to clamp the ceramic tube, the feeding clamp 12 moves horizontally to send the ceramic tube at the discharge end to the clamp 2. When the jaw 2 passes through the perforation position and the molten wire position in sequence, the perforation needle 4 is located at the upper and lower ends of the jaw 2 respectively. The vertical movement of the perforation needle 4 at the upper and lower ends corresponds to piercing the copper caps at the top and bottom of the ceramic tube respectively. The wire feeding clamp 5 moves vertically downward to feed the molten wire into the ceramic tube. A cutting scissor 29 is also provided between the wire feeding clamp 5 and the jaw 2. When the clamp 2 passes through the first welding position, the second cutting position and the first leveling position of the welding surface in sequence, the first solder feeding guide 6 feeds the solder wire to the copper cap at the top of the ceramic tube and performs soldering through the first heating coil 13; the wire cutter 7 moves horizontally to cut the exposed molten wire at the lower end of the ceramic tube; the first milling cutter 8 rotates vertically to cut and level the welding surface. When the gripper 2 passes through the flipping position, sand filling position, secondary welding position and secondary leveling position in sequence, the flipping assembly flips the ceramic tube so that the copper cap at the lower end of the ceramic tube faces upward; the sand outlet 9 fills the ceramic tube with sand from above; the second solder feeding conduit 10 feeds the solder wire to the top of the upward-facing copper cap and performs soldering through the second heating coil 14; the second milling cutter 11 rotates vertically to cut and level the welding surface.

[0021] In this embodiment, the feeding channel 3 transports semi-finished products with copper caps pre-installed at both ends of the ceramic tube. This device achieves differentiated perforation through symmetrically arranged and vertically reciprocating perforating needles 4. The perforating needles 4 above the gripper 2 only need to penetrate the copper cap at the top of the ceramic tube with their needle tips to meet the subsequent requirements of inserting and clamping the fuse through the opening of the copper cap. The perforating needles 4 below the gripper 2 continue to move upward after penetrating the copper cap at the bottom of the ceramic tube with their needle tips, using the needle body to continuously move upward to expand the opening size of the bottom copper cap to meet the subsequent sand filling requirements. With the help of the flipping component, the ceramic tube is precisely flipped 180° so that the copper cap at the bottom of the ceramic tube faces upward, and the opening of the upward-facing copper cap can directly connect to the sand outlet 9 to complete the sand filling operation. This design eliminates the redundant steps in the traditional process of first installing a copper cap at one end of the ceramic tube, then flipping it for sand filling, and then installing a copper cap at the other end. It reduces the mechanical connection links of multiple workstations, saves production space layout resources, and significantly shortens the production cycle of the fuse, thus significantly improving the production efficiency of the fuse.

[0022] In one possible implementation, guide blocks 15 are respectively provided between the two perforating needles 4 and the gripper 2, and the guide blocks 15 have guide channels. Among them, the top end of the perforating needle 4 located above the gripper 2 is connected to the telescopic cylinder 19, and its bottom end extends downward into the guide channel of the corresponding guide block 15. The bottom end of the perforating needle 4 located below the gripper 2 is connected to the telescopic cylinder 19, and its top end extends upward into the guide channel of the corresponding guide block 15. Limiting blocks 16 are provided on both perforating needles 4.

[0023] In this embodiment, each of the perforating needles 4 at the upper and lower ends of the gripper 2 corresponds to a guide block 15. The gripper 2 is located between the two guide blocks 15, and the gap between the ceramic tube and the two guide blocks 15 is small enough. This has the advantage that when the perforating needle 4 performs perforation on the copper cap, it will squeeze the ceramic tube. The two guide blocks 15 are responsible for limiting excessive displacement of the ceramic tube during squeezing, thus preventing the ceramic tube from falling out of the gripper 2. Furthermore, the guide channels provided by the guide blocks 15 can prevent the perforating needle 4 from wobbling during vertical displacement, thus accurately guiding the perforating needle 4 and ensuring proper perforation. The piercing needle 4 can accurately pierce the copper cap. In addition, both piercing needles 4 are equipped with limiting blocks 16. The limiting block 16 of the piercing needle 4 located above the clamp 2 will abut against the corresponding guide block 15 as the needle body moves down, so that the upper piercing needle 4 can just penetrate the top copper cap with the needle tip. The limiting block 16 of the piercing needle 4 located below the clamp 2 will abut against the corresponding guide block 15 as the needle body moves up. In addition to allowing the needle tip to penetrate the bottom copper cap, it can also allow part of the needle body to extend into the opening of the bottom copper cap to achieve the hole enlargement effect. At the same time, the limiting block 16 can also prevent the piercing needle 4 from continuing to move up and penetrate the top copper cap.

[0024] In this embodiment, a copper cap primary detection component is also provided between the feeding clamp 12 and the perforating needle 4. The copper cap primary detection component includes a metal induction switch 43. When the gripper 2 clamps the ceramic tube and moves to the copper cap primary detection position, the metal induction switch 43 is located directly above the ceramic tube and is used to detect whether the copper cap at the top of the ceramic tube exists. If it does not exist, the product is determined to be defective.

[0025] In one possible implementation, a cooling pipe 56 is also provided at an interval between the second heating coil 14 and the second milling cutter 11.

[0026] In this embodiment, after the copper cap with the ceramic tube facing upwards has undergone secondary welding, the clamp 2 holds the ceramic tube and moves it to the position where the weld surface can be quickly solidified. At this time, the air outlet of the cold air pipe 56 is located above the clamp 2 and directly opposite the top of the ceramic tube, and is used to blow out cold air to make the weld surface on the outer surface of the copper cap facing upwards solidify quickly, so as to facilitate the subsequent quick leveling operation of the weld surface.

[0027] In one possible implementation, the automatic assembly device further includes a first fixed bracket 17, a first slider 18 slidably connected to the first fixed bracket 17, a telescopic cylinder 19 connected to the top of the first slider 18, a drive motor 20 fixedly mounted on the first slider 18, and the output end of the drive motor 20 connected to the first milling cutter 8. The automatic assembly device also includes a second fixed bracket 21, a second slider 22 is slidably connected to the second fixed bracket 21, a telescopic cylinder 19 is connected to the top of the second slider 22, a drive motor 20 is fixedly installed on the second slider 22, and the output end of the drive motor 20 is connected to the second milling cutter 11.

[0028] In this embodiment, the first slider 18 is driven to slide vertically down the first fixed bracket 17 by the telescopic cylinder 19, which in turn drives the first milling cutter 8 to slide down. At the same time, the first milling cutter 8 is driven to rotate by the drive motor 20, so that the first milling cutter 8 contacts the copper cap at the top of the ceramic tube, and then the welding surface of the copper cap at the top is leveled. The working principle of the second milling cutter 11 is the same as that of the first milling cutter 8, and will not be described in detail here.

[0029] In this embodiment, a dust blowing assembly, a CCD three-stage detection assembly, a finished product resistance detection assembly, a defective product collection assembly, and a good product collection assembly are sequentially and intermittently arranged between the second heating coil 14 and the feeding channel 3.

[0030] The dust blowing assembly includes an air blowing pipe 44. When the gripper 2 holds the ceramic tube and moves it to the dust blowing position, the air outlet of the air blowing pipe 44 is located above the gripper 2 and directly facing the top of the ceramic tube, used to blow away the welding slag on the upward-facing outer surface of the copper cap.

[0031] The components and working principle of the CCD three-stage inspection assembly are the same as those of the CCD one-stage inspection assembly described later. It is used to detect whether the weld surface meets the process standards, and will not be elaborated here.

[0032] The finished product resistance testing assembly includes electrical testing clamps 45 with electrical probes on the clamps arranged symmetrically at intervals. When the clamp 2 holds the ceramic tube and moves it to the finished product resistance testing position, the ceramic tube is located between the two electrical testing clamps 45. At this time, the upper and lower electrical testing clamps 45 respectively hold the copper caps at the upper and lower ends of the ceramic tube to detect whether the circuit of the finished product is conductive.

[0033] The defective product collection component includes a push block 46, which is connected to a telescopic cylinder 19. A collection bin 47 is located below the push block 46. If a product is detected as defective during the preceding production inspection process, a signal will be transmitted to the background system. When the gripper 2 holds the defective product and moves it to the defective product collection position, the system controls the telescopic cylinder 19 to drive the push block 46 to move toward the defective product, squeezing the defective product off the gripper 2 and causing it to fall into the collection bin 47.

[0034] The components and working principle of the good product collection assembly are the same as those of the defective product collection assembly described above. It is used to collect good products on the gripper 2, and will not be described again here.

[0035] In one possible implementation, the feed inlet of the feeding channel 3 is connected to a vibratory feeder 23, and the back of the feeding clamp 12 is connected to a telescopic cylinder 19.

[0036] In this embodiment, the ceramic tube is fed into the feeding channel 3 via the vibrating plate 23, and then transported to the chuck of the feeding clamp 12 via the feeding channel 3. The feeding clamp 12 then clamps the ceramic tube and moves it closer to the gripper 2 via the drive of the telescopic cylinder 19, thus sending the ceramic tube onto the gripper 2.

[0037] In one possible implementation, the automatic assembly device further includes a third fixed bracket 24, on which guide rollers 25 are arranged in a staggered manner along the vertical direction, a melting wire roller 26 is arranged above the guide rollers 25, and a pair of wire feeding rollers 27 are arranged symmetrically in front and behind below the guide rollers 25, with the wire feeding clamp 5 located directly below the wire feeding rollers 27. The third fixed bracket 24 is slidably connected to the third slider 28. The top surface of the third slider 28 is connected to the telescopic cylinder 19, and its bottom surface is fixedly connected to the wire feeding clamp 5. The cutting shears 29 are connected to a drive cylinder 30.

[0038] In this embodiment, the molten wire wound on the molten wire roller 26 is wound to the guide roller 25 and then placed between the two feeding rollers 27 and in contact with the wheel surface of the feeding rollers 27. The guide roller 25 has an annular groove along its wheel surface to facilitate the winding of the molten wire. Its staggered arrangement makes it easy to straighten the molten wire. The symmetrical feeding rollers 27 are connected to a drive motor 20. The drive motor 20 causes the feeding rollers 27 to rotate, thereby conveying the molten wire to the feeding clamp 5. The feeding clamp 5 then clamps the molten wire, and the telescopic cylinder 19 drives the third slider 28 to move down along the third fixed bracket 24, thereby causing the feeding clamp 5 to move down and convey the molten wire from the copper cap opening at the top of the ceramic tube to the ceramic tube. The molten wire is clamped through the copper cap opening at the top of the ceramic tube to prevent the molten wire from falling off the ceramic tube.

[0039] In addition, the cutting blade 29 is closed by driving the cylinder 30 to cut the molten wire once, cutting off the molten wire exposed by the copper cap at the top of the ceramic tube; it should be noted that the opening and closing of the above-mentioned auxiliary processing instruments, including but not limited to the feeding clamp 12 and the wire feeding clamp 5, are all achieved by driving the cylinder 30, which is the prior art and will not be described in detail.

[0040] In this embodiment, a ceramic tube primary straightening assembly is also provided between the perforating needle 4 and the wire feeding clamp 5. The ceramic tube primary straightening assembly includes a vertically reciprocating electric push rod 48, and a fixed post 49 is provided directly below the electric push rod 48. When the gripper 2 clamps the ceramic tube and moves it to the ceramic tube primary straightening position, the ceramic tube is located between the electric push rod 48 and the fixed post 49. At this time, the electric push rod 48 is pressed down in the direction closer to the fixed post 49. The position of the ceramic tube is adjusted by cooperating with the fixed post 49, so that the gripper 2 can drive the ceramic tube to accurately enter the subsequent processing station.

[0041] In one possible implementation, a first solder wire roller 31 is provided on the outside of the feed port of the first solder feeding conduit 6, a first guide wheel 32 is provided between the first solder feeding conduit 6 and the first solder wire roller 31, a pair of first wire feeding posts 33 are provided between the first solder feeding conduit 6 and the first guide wheel 32, and the first wire feeding posts 33 are connected to a drive motor 20. The first heating coil 13 is located between the first solder feeding conduit 6 and the clamp 2; A second solder wire roller 34 is provided on the outside of the feed port of the second solder feeding conduit 10. A second guide wheel 35 is provided between the second solder feeding conduit 10 and the second solder wire roller 34. A pair of second wire feeding posts 36 are provided between the second solder feeding conduit 10 and the second guide wheel 35. The second wire feeding posts 36 are connected to a drive motor 20. The second heating coil 14 is located between the second solder feeding conduit 10 and the clamp 2.

[0042] In this embodiment, the solder wire wound on the first solder wire roller 31 is wound to the first guide wheel 32 and then placed between the two first wire feeding posts 33 and held by the first wire feeding posts 33. The first guide wheel 32 has an annular groove along its surface to facilitate the winding of the solder wire. Both first wire feeding posts 33 are connected to the drive motor 20. The drive motor 20 causes the first wire feeding posts 33 to rotate, thereby conveying the solder wire to the first solder feeding guide 6. Then, the solder wire is conveyed to the copper cap on the top surface of the ceramic tube through the first solder feeding guide 6. The solder wire is then heated by the first heating coil 13 to perform soldering on the copper cap.

[0043] The way the tin wire is laid out and the principle of feeding on the second tin wire roller 34 are the same as those on the first tin wire roller 31, so they will not be described in detail here.

[0044] In this embodiment, a primary fuse adjustment assembly, a secondary fuse adjustment assembly, and a fuse length detection assembly are sequentially and intermittently arranged between the wire feeding clamp 5 and the first heating coil 13.

[0045] The fuse adjustment assembly includes a first vibrator 50. When the gripper 2 moves the ceramic tube to the fuse adjustment position, the first vibrator 50 is positioned above the gripper 2 and avoids the ceramic tube. After the gripper 2 reaches this position, the first vibrator 50 starts vibrating and strikes the gripper 2, causing the fuse to continue moving downward from inside the ceramic tube and extending from the opening of the copper cap at the bottom of the ceramic tube to a preset length range.

[0046] The fuse secondary adjustment assembly includes a second vibrator 51 and a fixing clamp 52 located below the first vibrator 50. A telescopic cylinder 19 is located at the tail of the fixing clamp 52. When the clamp 2 moves the ceramic tube to the fuse secondary adjustment position, the telescopic cylinder 19 drives the fixing clamp 52 to move closer to the clamp 2 to clamp the ceramic tube. At this time, the second vibrator 51 uses a greater striking force and a faster vibration frequency than the first vibrator 50 to avoid striking the clamp 2 with the ceramic tube. This is to deal with the situation where the effect of the fuse is not ideal after the first position adjustment. After two adjustments to the fuse position, the exposed length of the fuse at the top and bottom of the ceramic tube is strictly controlled within the range that meets the process requirements.

[0047] The fuse length detection assembly includes an electrical detection clamp 45. When the clamp 2 holds the ceramic tube and moves it to the fuse length detection position, the exposed fuse at the top of the ceramic tube is located between the two clamps of the electrical detection clamp 45. At this time, the electrical detection clamp 45 clamps the fuse to determine whether the exposed length of the fuse at the top of the ceramic tube meets the process requirements.

[0048] In one possible implementation, the flipping assembly includes a flipping clamp 37 connected to a flipping cylinder 38, and the flipping clamp 37 is also connected to a telescopic cylinder 19.

[0049] In this embodiment, the telescopic cylinder 19 drives the flip clamp 37 to approach the gripper 2, removes the ceramic tube from the gripper 2 and resets it. Then, the flip clamp 37 is flipped 180° clockwise or counterclockwise by the flip cylinder 38 so that the copper cap at the lower end of the ceramic tube faces upward. Subsequently, the telescopic cylinder 19 drives the flip clamp 37 to approach the gripper 2 and transports the ceramic tube onto the gripper 2.

[0050] In one possible implementation, there are two sand outlet nozzles 9, which are spaced apart and connected to the sand storage tank 39. Each of the two sand outlet nozzles 9 is provided with a gripping clamp 55 below it. A telescopic cylinder 19 is provided at the tail end of the gripping clamp 55. A vibrating column 40 is also provided on the outside of the right sand outlet nozzle 9. The top of the vibrating column 40 is connected to the telescopic cylinder 19, and the bottom of the vibrating column 40 is provided with a vibrating block 41. The automatic assembly device also includes a receiving frame 42, which has a strip-shaped opening. The position of the strip-shaped opening overlaps with the movement trajectory of the gripper 2. The two sand outlets 9 and the vibrating column 40 are all located inside the receiving frame 42.

[0051] In this embodiment, the gripper 2 holds the ceramic tube and moves it from the left side of the strip opening of the receiving frame 42 into the receiving frame 42. The telescopic cylinder 19 drives the gripper 55 to grip the ceramic tube, and then moves it to the sand outlet 9 on the left side to fill it with sand. After that, the ceramic tube is transported to the gripper 2 via the gripper 55. Then the gripper moves to the sand outlet 9 on the right side to fill it with sand a second time in the same way. Then it moves to the bottom of the vibrating block 41. The telescopic cylinder 19 drives the vibrating column 40 and the vibrating block 41 to vibrate at high frequency. The vibrating block 41 hits the gripper 2, so that the gripper 2 and the receiving frame 42 generate high-frequency collision vibration. This makes the sand filling inside the ceramic tube compact and shakes off the sand on the outer surface of the copper cap, which facilitates the subsequent secondary welding operation. Then the gripper 2 holds the ceramic tube and continues to rotate to move it out through the right side of the strip opening to enter the next process.

[0052] In this embodiment, a CCD secondary detection component, a ceramic tube tertiary correction component, and a copper cap secondary detection component are sequentially and spaced apart between the vibration block 41 and the second heating coil 14. The components and working principle of the CCD secondary detection component are the same as those of the CCD primary detection component described later. The CCD secondary detection component is used to detect whether the sand material inside the ceramic tube is full, thereby distinguishing whether it is a good product, and will not be described in detail here. The components and working principle of the ceramic tube tertiary correction component are the same as those of the ceramic tube primary correction component described above, and will not be described in detail here. Similarly, the components and working principle of the copper cap secondary detection component are the same as those of the copper cap primary detection component described above, and will not be described in detail here.

[0053] In one possible implementation, the wire cutter 7 is located directly below the gripper 2, a fixing block 54 is provided on the outer side of the blade head of the wire cutter 7, and a telescopic cylinder 19 is connected to the tail of the wire cutter 7.

[0054] In this embodiment, when the gripper 2 clamps the ceramic tube into the secondary cutting position, the molten wire of the copper cap at the lower end of the ceramic tube is located between the fixing block 54 and the cutting blade 7, and the molten wire is in contact with the outer surface of the fixing block 54. Then, the cutting blade 7 is driven to move closer to the fixing block 54 by the telescopic cylinder 19. Through the cooperation of the two, the cutting blade 7 cuts off the excess molten wire exposed by the copper cap at the lower end of the ceramic tube.

[0055] In this embodiment, a secondary straightening assembly for ceramic tubes is also provided between the first heating coil 13 and the tangent 7. The components and working principle of the secondary straightening assembly for ceramic tubes are the same as those of the primary straightening assembly for ceramic tubes described above, and will not be repeated here.

[0056] In this embodiment, a CCD primary inspection component is also provided between the tangent 7 and the first milling cutter 8. The CCD primary inspection component includes a CCD camera 53. When the gripper 2 clamps the ceramic tube into the primary welding inspection position, the CCD camera 53 is located directly above the gripper 2. The CCD camera 53 is used to detect whether the welding surface meets the process standards.

[0057] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An automatic assembly device for surface-mount fuses, characterized in that, include: A rotating disk has several grippers spaced along its circumference. Along the outer circumference of the rotating disk are a feeding channel, two vertically reciprocating piercing needles, a vertically reciprocating wire feeder, a first solder feeding guide, a horizontally reciprocating tangent, a vertically reciprocating first milling cutter, a flipping assembly, a sand outlet nozzle, a second solder feeding guide, and a vertically reciprocating second milling cutter. The discharge end of the feeding channel is equipped with a feeding clamp. When the clamp moves to the position to pick up the ceramic tube, the feeding clamp moves horizontally to send the ceramic tube from the discharge end onto the clamp. When the gripper passes through the perforation position and the molten wire position in sequence, the perforation needles are located at the upper and lower ends of the gripper respectively. The vertical movement of the perforation needles at the upper and lower ends corresponds to piercing the copper caps at the top and bottom of the ceramic tube respectively. The wire feeder moves vertically downward to feed the molten wire into the ceramic tube. A cutting scissor is also provided between the wire feeder and the gripper. As the grippers sequentially pass through the first welding position, the second cutting position, and the first leveling position of the welding surface, the first solder feeding guide delivers the solder wire to the copper cap at the top of the ceramic tube and performs soldering through the first heating coil; the tangent moves horizontally to cut the exposed molten wire at the lower end of the ceramic tube; the first milling cutter rotates vertically to cut and level the welding surface. As the grippers sequentially pass through the flipping position, sand filling position, secondary welding position, and secondary leveling position of the weld surface, the flipping assembly flips the ceramic tube so that the copper cap at the lower end of the ceramic tube faces upward; the sand outlet nozzle fills the ceramic tube with sand from above; the second solder feeding guide delivers the solder wire to the top of the upward-facing copper cap and performs soldering through the second heating coil; the second milling cutter rotates vertically to cut and level the weld surface.

2. The automatic assembly device for surface-mount fuses according to claim 1, characterized in that, Guide blocks are also provided between the two perforating needles and the grippers, and the guide blocks are provided with guide channels; The top of the piercing needle located above the gripper is connected to a telescopic cylinder, and its bottom extends downward into the guide channel of the corresponding guide block. The bottom of the piercing needle located below the gripper is connected to a telescopic cylinder, and its top extends upward into the guide channel of the corresponding guide block. Both of the perforating needles are provided with limit blocks.

3. The automatic assembly device for surface-mount fuses according to claim 2, characterized in that, A cooling air pipe is also provided at an interval between the second heating coil and the second milling cutter.

4. The automatic assembly device for surface-mount fuses according to claim 1, characterized in that, The automatic assembly device further includes a first fixed bracket, a first slider is slidably connected to the first fixed bracket, a telescopic cylinder is connected to the top of the first slider, a drive motor is fixedly mounted on the first slider, and the output end of the drive motor is connected to the first milling cutter. The automatic assembly device further includes a second fixed bracket, a second slider is slidably connected to the second fixed bracket, a telescopic cylinder is connected to the top of the second slider, a drive motor is fixedly mounted on the second slider, and the output end of the drive motor is connected to the second milling cutter.

5. The automatic assembly device for surface-mount fuses according to claim 1, characterized in that, The feeding channel has a vibratory feeder connected to its inlet end, and a telescopic cylinder is connected to the back of the feeding clamp.

6. The automatic assembly device for surface-mount fuses according to claim 1, characterized in that, The automatic assembly device also includes a third fixed bracket, on which guide wheels are arranged in a staggered manner along the vertical direction. A melting wire roller is arranged above the guide wheels, and a pair of wire feeding wheels are arranged symmetrically in front and behind below the guide wheels. The wire feeding clamp is located directly below the wire feeding wheels. The third fixed bracket is slidably connected to a third slider, the top surface of the third slider is connected to a telescopic cylinder, and its bottom surface is fixedly connected to the wire feeding clamp. The cutting shears are connected to a drive cylinder.

7. The automatic assembly device for surface-mount fuses according to claim 1, characterized in that, A first solder wire roller is provided on the outside of the feed port of the first solder feeding conduit, a first guide wheel is provided between the first solder feeding conduit and the first solder wire roller, a pair of first wire feeding posts are provided between the first solder feeding conduit and the first guide wheel, and the first wire feeding posts are connected to a drive motor. The first heating coil is located between the first solder feeding conduit and the clamp; A second solder wire roller is provided on the outside of the feed port of the second solder feeding conduit, a second guide wheel is provided between the second solder feeding conduit and the second solder wire roller, a pair of second wire feeding posts are provided between the second solder feeding conduit and the second guide wheel, and the second wire feeding posts are connected to a drive motor; The second heating coil is located between the second solder feeding conduit and the clamp.

8. The automatic assembly device for surface-mount fuses according to claim 1, characterized in that, The flipping assembly includes a flipping clamp connected to a flipping cylinder, and the flipping clamp is also connected to a telescopic cylinder.

9. The automatic assembly device for surface-mount fuses according to claim 1, characterized in that, The number of sand outlets is two, and the two sand outlets are arranged at intervals on the left and right and are both connected to the sand storage tank. A gripping clamp is provided below each of the two sand outlets, and a telescopic cylinder is provided at the tail end of the gripping clamp. A vibrating column is also provided on the outside of the right sand outlet. A telescopic cylinder is connected to the top of the vibrating column, and a vibrating block is provided at the bottom of the vibrating column. The automatic assembly device also includes a receiving frame with a strip-shaped opening. The position of the strip-shaped opening overlaps with the movement trajectory of the gripper. Both sand outlets and the vibrating column are disposed within the receiving frame.

10. The automatic assembly device for surface-mount fuses according to claim 1, characterized in that, The tangent is located directly below the gripper, and a fixing block is provided on the outer side of the tangent's head. The tail of the tangent is also connected to a telescopic cylinder.

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