Fuse threading and welding automatic assembling machine

Abstract

The utility model relates to the technical field of fuse assembly, and provides a fuse threading and welding automatic assembly machine, which comprises a turntable, a clamping jaw is mounted on the turntable, the clamping jaw is used for clamping a porcelain tube, and the turntable is used for rotating the porcelain tube to different stations; the periphery of the rotating disc is sequentially provided with a porcelain tube pre-feeding mechanism. A one-end inner cap assembling mechanism; a one-end inner cap pressing mechanism; a first porcelain tube overturning mechanism; a two-end inner cap assembling mechanism; a two-end inner cap pressing mechanism; a one-end outer cap assembling mechanism; a threading mechanism; a one-end outer cap welding mechanism; a one-end semi-finished product length detection mechanism; a sand filling mechanism; a sand filling weighing mechanism; a two-end outer cap assembling mechanism; a second porcelain tube overturning mechanism; a two-end outer cap welding mechanism; a finished product length detection mechanism; the device comprises a product power-on detection mechanism, a resistor defect discharging mechanism, a secondary defect discharging mechanism and a non-defective product discharging mechanism. On the basis, the production efficiency can be improved, and meanwhile the product quality is guaranteed.

Description

Technical Field

[0001] The present application relates to the field of fuse assembly, and in particular to an automatic fuse threading and welding assembly machine. Background Art

[0002] The fuse production process includes several key steps, such as inner cap assembly, wire threading, outer cap assembly, and welding. Each step is crucial and together determine the quality and performance of the fuse. However, the production process of existing equipment has some problems, especially in the connection between all the steps. The fuses need to be transferred multiple times between different processes, which not only increases operational complexity but also reduces production efficiency. Each transfer may bring additional risks, such as damage or displacement of the fuse during transportation, which may affect the final quality. In addition, multiple transfers increase production costs and time, reducing overall production efficiency.

[0003] Therefore, the present application studies an automatic assembly machine for fuse threading and welding, which improves production efficiency while ensuring product quality. Utility Model Content

[0004] In order to improve production efficiency and ensure product quality at the same time, the present application provides a fuse wire threading and welding automatic assembly machine.

[0005] The present application provides a fuse wire threading and welding automatic assembly machine, which adopts the following technical solutions:

[0006] A fuse threading and welding automatic assembly machine includes a turntable, on which a clamping claw is installed. The clamping claw is used to clamp a porcelain tube. The turntable is used to rotate the porcelain tube to different working positions. The outer circumference of the turntable is sequentially provided with:

[0007] Porcelain tube pre-feeding mechanism, which feeds the porcelain tube to the clamping jaws;

[0008] One-end inner cap assembly mechanism, used for pre-installation of the inner cap at one end of the porcelain tube;

[0009] One end inner cap pressing mechanism is used for pressing and fixing the inner cap at one end of the porcelain tube;

[0010] The first porcelain tube turning mechanism is used to turn the direction of the porcelain tube;

[0011] Two-end inner cap assembly mechanism, used for pre-installation of inner caps at both ends of porcelain tube;

[0012] The two-end inner cap pressing mechanism is used for pressing and fixing the inner caps at the two ends of the porcelain tube;

[0013] One-end outer cap assembly mechanism, used for installing the outer cap at one end of the porcelain tube;

[0014] Wire threading mechanism, used for threading the porcelain tube;

[0015] One end outer cap welding mechanism, used for welding the outer cap at one end of the porcelain tube;

[0016] The semi-finished product length detection mechanism at one end is used to detect the length of the porcelain tube after welding;

[0017] Sand filling mechanism, used to fill the porcelain tube with arc-proof material;

[0018] Sand filling weighing mechanism, used to weigh the weight of the porcelain tube after sand filling;

[0019] Two-end outer cap assembly mechanism, used for installing the outer caps at both ends of the porcelain tube;

[0020] The second porcelain tube turning mechanism is used to turn the direction of the porcelain tube;

[0021] Two-end outer cap welding mechanism, used for welding the outer caps at the two ends of the porcelain tube;

[0022] Finished product length detection mechanism, used to detect the length of the finished porcelain tube;

[0023] Product power-on detection mechanism, resistance defective product unloading mechanism, secondary defective product unloading mechanism, and good product unloading mechanism.

[0024] By adopting the above technical solution, the porcelain tube is rotated from one workstation to the next workstation through the clamping claws on the turntable. The entire porcelain tube assembly process is completed through the cooperation of various mechanisms. The semi-finished products during the installation of the porcelain tube and the finished products after the installation are inspected by the inspection mechanism to ensure the quality of the finished products. Since the porcelain tube can be rotated to different workstations by the turntable, efficiency can be improved, thereby ensuring product quality while improving production efficiency.

[0025] Optionally, the porcelain tube feeding mechanism includes a feeding hopper, a feeding trough, an electromagnet, a feeding photoelectric device, a vibrating feeding tray, and a feeding fixing seat and a feeding main board for fixing the feeding hopper; the feeding main board is communicated and connected between the feeding hopper and the feeding trough, the feeding fixing seat is screwed to the feeding main board, the electromagnet is installed at the bottom of the feeding main board, one end of the feeding trough extends into the vibrating feeding tray, the feeding photoelectric device is screwed to one side of the feeding trough, and is located in the vibrating feeding tray.

[0026] Optionally, the porcelain tube feeding mechanism also includes a feed nozzle, a porcelain tube feeding and taking component, a porcelain tube positioning component and a porcelain tube clamping mechanism. The vibrating feed tray is connected to the feed nozzle, and the porcelain tube enters the porcelain tube feeding and taking component through the feed nozzle. The porcelain tube positioning component is used to position the porcelain tube and assist the porcelain tube feeding component in clamping the porcelain tube; the porcelain tube clamping mechanism is used to open the clamping claw, and the porcelain tube feeding and taking component drives the porcelain tube feeding and taking component to move and allows the porcelain tube to enter the clamping claw.

[0027] Optionally, a porcelain tube length detection mechanism is further provided between the vacuum testing mechanism and the one-end inner cap assembly mechanism. The porcelain tube length detection mechanism includes a detection cylinder, a detection upper block, a detection lower block, a detection probe, an analog proximity switch and a propulsion cylinder. The detection cylinder is used to drive the detection upper block to approach or move away from the detection lower block. The detection probe is connected to one end of the analog proximity switch, the detection probe is connected to the detection lower block, and the propulsion cylinder drives the detection lower block to approach or move away from the detection upper block.

[0028] Optionally, the inner cap assembly mechanism at one end includes an inner cap feeding vibration disk, the inner cap feeding vibration disk is connected to an inner cap feeding track, the inner cap feeding track is connected to an anti-cap wheel, one end of the anti-cap wheel is connected to the inner cap track, the upper part of the inner cap track is connected to an upper stop block, and the lower part is connected to an inner cap top rod.

[0029] Optionally, the one-end outer cap assembly mechanism includes an outer cap track, a first driving member and a pressing push rod, the outer cap track is provided with a pressing hole, and the first driving member drives the pressing push rod to pass through or leave the pressing hole.

[0030] Optionally, the wire threading mechanism includes a wire unwinding assembly, a wire threading assembly, a wire folding assembly, and a wire cutting assembly. The wire unwinding assembly is used to transfer the wire material to the wire threading assembly. The wire threading assembly includes a main board and a second driving member. The second driving member drives the main board to move. The main board is provided with a wire threading needle tube and a third driving member. The wire threading needle tube is provided above the outer cap track.

[0031] When threading the wire, the porcelain tube is transferred between the wire threading assembly and the outer cap track. When the wire release assembly passes the wire through the wire threading needle tube, the second driving member drives the main board to move downward, and the wire threading needle tube with the wire enters the porcelain tube and passes out from the bottom. The third driving member drives the wire threading needle tube to move upward and be flush with the lower end of the porcelain tube. The wire is bent to the lower end wall of the porcelain tube through the wire folding assembly under the porcelain tube. The first driving member drives the pressing rod to pass through the pressing hole to press the outer cap to the porcelain tube. The second driving member drives the main board to reset, and the wire threading needle tube moves upward to the wire cutting assembly, and the wire cutting assembly cuts off the wire outside the wire threading needle tube.

[0032] Optionally, the wire folding assembly includes a forming block, a seventh driving member and a wire folding cylinder head. The forming block is arranged above the outer cap rail and is provided with a connecting hole that is interconnected with the pressing hole for the pressing push rod to pass through. The output end of the seventh driving member is connected to the wire folding cylinder head, and the wire folding cylinder head is connected to the forming block.

[0033] Optionally, the wire cutting assembly includes a seventh driving member and a wire cutter, and the wire cutter is located above the outer cap track. When the wire threading needle tube is reset, the seventh driving member drives the wire cutter forward to cut the wire.

[0034] Optionally, the one-end outer cap welding mechanism includes a ninth driving member, a welding positioning rod, a tenth driving member and a lower support rod, the ninth driving member drives the welding positioning rod to move downward, and the tenth driving member drives the lower support rod to move upward; it also includes an eleventh driving member, a welding seat, a welding head and a welding copper ring, the eleventh driving member drives the welding seat to move upward or downward, the welding head is connected to the welding seat, the welding copper ring is connected to the welding head, and the central axis of the welding copper ring is on the same straight line as the central axis of the lower support rod.

[0035] Optionally, the two-end outer cap assembly mechanism includes a twelfth driving member, a front pushing clamp, a thirteenth driving member, a folding wire pushing block, a fourteenth driving member, a lower pressure rod, an outer cap lower pad, two-end pressure sensors, two-end feeding rails and an outer cap guide block. The twelfth driving member drives the front pushing clamp to move, and the thirteenth driving member drives the folding wire pushing block to move. The folding wire pushing block is provided with an arc hole, and the outer cap guide block is provided with a moving channel for the folding wire pushing block to pass through. The front pushing clamp is fittedly arranged above the outer cap guide block, and the two-end feeding rails are connected to the top of the outer cap guide block. The outer cap lower pad is arranged on the two-end pressure sensors and faces the lower pressure rod. The fourteenth driving member drives the lower pressure rod to move into the arc hole and approach or move away from the outer cap lower pad.

[0036] In summary, this application includes at least one of the following beneficial technical effects:

[0037] The porcelain tube is rotated from one workstation to the next by the clamping claws on the turntable. The whole porcelain tube assembly process is completed by the cooperation of various mechanisms. The semi-finished products in the porcelain tube installation process and the finished products after installation are inspected by the inspection mechanism to ensure the quality of the finished products. Since the porcelain tube can be rotated to different workstations by the turntable, the efficiency can be improved, thereby ensuring product quality while improving production efficiency; by coordinating the outer cap assembly at one end with the wire threading mechanism, a highly efficient wire threading and outer cap assembly process can be achieved, and double wires can be threaded at the same time; the outer cap is welded at high frequency by the outer cap welding mechanism at one end to achieve a stable connection between the outer cap and the porcelain tube. Illustrations

[0038] Figure 1 This is a structural diagram of the automatic assembly machine for fuse threading and welding according to an embodiment of the present application;

[0039] Figure 2This is a structural diagram of a porcelain tube anticipation mechanism in an automatic fuse threading and welding assembly machine according to an embodiment of the present application;

[0040] Figure 3 This is a structural diagram of another angle of the porcelain tube anticipation mechanism in the automatic fuse threading and welding assembly machine according to an embodiment of the present application;

[0041] Figure 4 This is a structural diagram of a porcelain tube length detection mechanism in an automatic fuse threading and welding assembly machine according to an embodiment of the present application;

[0042] Figure 5 This is a structural diagram of an inner cap assembly mechanism at one end of a fuse wire threading and welding automatic assembly machine according to an embodiment of the present application;

[0043] Figure 6 This is a structural diagram of an outer cap assembly mechanism at one end of a fuse wire threading and welding automatic assembly machine according to an embodiment of the present application;

[0044] Figure 7 This is a structural diagram of the wire threading mechanism in the automatic assembly machine for fuse wire threading and welding according to an embodiment of the present application;

[0045] Figure 8 yes Figure 7 A magnified schematic diagram of point A in the middle;

[0046] Figure 9 This is a structural diagram of the wire threading mechanism in the automatic assembly machine for fuse wire threading and welding according to an embodiment of the present application from another perspective;

[0047] Figure 10 yes Figure 9 A magnified schematic diagram of point B in the middle;

[0048] Figure 11 This is a schematic structural diagram of a one-end outer cap welding mechanism in an automatic fuse threading and welding assembly machine according to an embodiment of the present application;

[0049] Figure 12 It is a structural schematic diagram of the two-end outer cap assembly mechanism in the automatic fuse wire threading and welding assembly machine according to the embodiment of the present application.

[0050] Reference numerals: 1, turntable; 2, clamping claw;

[0051] 3. Porcelain tube feeding mechanism; 301. Feed hopper; 302. Feeding chute; 303. Electromagnet; 304. Feeding photoelectric device; 305. Vibrating feed tray; 306. Feeding fixed seat; 307. Feeding main board; 308. Feeding nozzle; 309. Clamping cylinder; 310. Clamping element; 311. Positioning cylinder; 312. Positioning pin; 313. Clamping cylinder; 314. Clamping element;

[0052] 4. One-end inner cap assembly mechanism; 401. Inner cap feeding vibration plate; 402. Inner cap feeding track; 403. Inverter wheel; 404. Inner cap track; 405. Upper stop block; 406. Inner cap ejector rod;

[0053] 5. One-end inner cap pressing mechanism; 6. First porcelain tube turning mechanism; 7. Two-end inner cap assembling mechanism; 8. Two-end inner cap pressing mechanism;

[0054] 9. One-end outer cap assembly mechanism; 91. Outer cap track; 92. First driving member; 93. Pressing ejector pin; 931. First ejector pin; 932. Second ejector pin; 94. Pressure sensor; 95. One-end outer cap vibration plate; 96. Connecting track; 97. Cover plate;

[0055] 10. Wire threading mechanism; 102. Wire unwinding assembly; 121. Fifth drive element; 122. Wire unwinding shaft; 123. Proximity switch; 124. Wire unwinding rocker; 125. Wire passing wheel; 202. Wire threading assembly; 221. Main board; 222. Second drive element; 223. Third drive element; 224. Wire threading needle tube; 225. Positioning rod; 226. Fourth drive element; 227. Shaping wheel; 228. Feed guide wheel; 229. First wire feed shaft; 230. Second wire feed shaft; 32. Wire folding assembly; 321. Forming block; 322. Seventh drive element; 323. Wire folding cylinder head; 324. Bending cylinder plate; 42. Wire cutting assembly; 421. Sixth drive element; 422. Wire cutter; 423. Cutter seat; 424. Guide groove; 425. Perforation;

[0056] 11. One-end outer cap welding mechanism; 111. Ninth driving member; 112. Welding positioning rod; 113. Tenth driving member; 114. Lower supporting rod; 115. Eleventh driving member; 116. Welding seat; 117. Welding head; 118. Welding copper ring;

[0057] 12. Semi-finished product length detection mechanism at one end; 13. Sand filling mechanism; 14. Sand filling weighing mechanism; 15. External cap assembly mechanism at both ends; 151. Twelfth driving member; 152. Front clamp for pushing material; 153. Thirteenth driving member; 154. Wire folding push block; 155. Fourteenth driving member; 156. Lower pressure rod; 157. External cap lower pad; 158. Pressure sensors at both ends; 159. Feed rails at both ends; 160. External cap guide block; 161. Moving channel;

[0058] 16. Second porcelain tube turning mechanism; 17. Two-end outer cap welding mechanism; 18. Finished product length detection mechanism; 19. Product power-on detection mechanism; 20. Resistance defect discharge mechanism; 21. Second defect discharge mechanism; 22. Good product discharge mechanism;

[0059] 23. Porcelain tube length detection mechanism; 231. Detection cylinder; 232. Detection of upper block; 233. Detection of lower block; 234. Detection probe; 235. Analog proximity switch; 236. Propulsion cylinder;

[0060] 24. Eighth driving member; 25. Clip closing block; 26. Clip pull hook. DETAILED DESCRIPTION

[0061] The following is combined with Figure 1-11 This application is described in further detail.

[0062] The embodiment of the present application discloses a fuse threading and welding automatic assembly machine. Figure 1 The automatic assembly machine for fuse threading and welding includes a turntable 1, on which are mounted clamps 2 for clamping porcelain tubes. The turntable 1 is used to rotate the porcelain tubes to different workstations. In this embodiment, the turntable 1 is rotated by a motor. In this embodiment, 48 clamps 2 are arranged at intervals along a circle of the turntable 1, so that different porcelain tubes can be operated on corresponding workstations at the same time, thereby improving production efficiency.

[0063] The outer circumference of the turntable 1 is provided with: a porcelain tube pre-feeding mechanism 3, which feeds the porcelain tube to the clamping jaws 2. The clamping jaws 2 rotate to each workstation after clamping and fix the porcelain tube at the corresponding workstation for corresponding operation. After the operation is completed, the porcelain tube is clamped and moved to the next workstation. An inner cap assembly mechanism 4 at one end is used for pre-installing the inner cap at one end of the porcelain tube; an inner cap pressing mechanism 5 at one end is used for pressing and fixing the inner cap at one end of the porcelain tube; a first porcelain tube flipping mechanism 6 is used for flipping the direction of the porcelain tube; an inner cap assembly mechanism 7 at both ends is used for pre-installing the inner caps at both ends of the porcelain tube; an inner cap pressing mechanism 8 at both ends is used for pressing and fixing the inner caps at both ends of the porcelain tube; an outer cap assembly mechanism 9 at one end is used for installing the outer cap at one end of the porcelain tube; a wire threading mechanism 10 is used for threading the porcelain tube; an outer cap welding mechanism 11 at one end is used for welding the porcelain tube. The outer cap at one end of the tube is welded; a semi-finished product length detection mechanism 12 at one end is used to detect the length of the porcelain tube after welding; a sand filling mechanism 13 is used to fill the porcelain tube with arc-proof material; a sand filling weighing mechanism 14 is used to weigh the weight of the porcelain tube after sand filling; a two-end outer cap assembly mechanism 15 is used to install the outer caps at the two ends of the porcelain tube; a second porcelain tube flipping mechanism 16 is used to flip the direction of the porcelain tube; a two-end outer cap welding mechanism 17 is used to weld the outer caps at the two ends of the porcelain tube; a finished product length detection mechanism 18 is used to detect the length of the finished porcelain tube.

[0064] Product power-on detection mechanism 19, defective resistor unloading mechanism 20, secondary defective unloading mechanism 21, and good product unloading mechanism 22. Secondary defective unloading mechanism 21 is used to unload finished products with other defective factors in addition to defective resistors. Through the coordination and testing of these various mechanisms, semi-finished products can be transported to various workstations simply by rotating the turntable 1, without the need for transportation. Semi-finished products and finished products can then be inspected, thus better ensuring product yield.

[0065] Referring to Figure 2 In some embodiments, the porcelain tube pre-feeding mechanism 3 comprises a pre-feeding hopper 301, a feeding chute 302, an electromagnet 303, a pre-feeding photoelectric sensor 304, a vibrating feeder 305, and a pre-feeding fixing seat 306 and a pre-feeding main plate 307 for fixing the pre-feeding hopper 301. The pre-feeding main plate 307 is connected and screwed between the pre-feeding hopper 301 and the feeding chute 302, the pre-feeding fixing seat 306 is screwed to the pre-feeding main plate 307, the electromagnet 303 is installed at the bottom of the pre-feeding main plate 307, one end of the feeding chute 302 extends into the vibrating feeder 305, and the pre-feeding photoelectric sensor 304 is screwed to one side of the feeding chute 302 and located in the vibrating feeder 305. The pre-feeding photoelectric sensor 304 comprises a photoelectric switch. When the photoelectric switch detects that there is no material in the vibrating feeder 305, the electromagnet 303 vibrates to vibrate the porcelain tube or the copper cap in the pre-feeding hopper 301 through the feeding chute 302 into the vibrating feeder 305. Until the photoelectric switch detects that the vibrating feeder 305 is filled with material, the electromagnet 303 stops vibrating, and the automatic feeding operation is completed.

[0066] Referring to Figure 3 In some embodiments, the porcelain tube pre-feeding mechanism 3 further comprises a feeding nozzle 308, a porcelain tube feeding and taking assembly, a porcelain tube positioning assembly, and a porcelain tube opening clamp mechanism. The vibrating feeder 305 is connected to the feeding nozzle 308, the porcelain tube enters the porcelain tube feeding and taking assembly through the feeding nozzle 308, the porcelain tube feeding and taking assembly comprises a clamping cylinder 309 and a clamping piece 310, and the clamping cylinder 309 drives the clamping piece 310 to clamp the porcelain tube. The porcelain tube positioning assembly is used for positioning the porcelain tube and assisting the porcelain tube feeding and taking assembly to clamp the porcelain tube. The porcelain tube positioning assembly comprises a positioning cylinder 311 and a positioning needle 312, the positioning cylinder 311 drives the positioning needle 312 to approach or move away from the center position of the clamping piece 310, and the positioning needle 312 is used for positioning the porcelain tube and detecting whether there is foreign matter in the porcelain tube. The porcelain tube opening clamp mechanism is used for opening the clamping jaw 2 and comprises an opening clamp cylinder 313 and an opening clamp piece 314, and the opening clamp cylinder 313 drives the opening clamp piece 314 to approach the clamping jaw 2 to open the clamping jaw 2. At this time, the porcelain tube positioning assembly is reset, the porcelain tube feeding and taking assembly further comprises a pneumatic cylinder, the pneumatic cylinder drives the clamping cylinder 309 and the clamping piece 310 to advance, the porcelain tube enters the clamping jaw 2, the porcelain tube opening clamp mechanism is reset, the clamping jaw 2 clamps the porcelain tube, the porcelain tube feeding and taking assembly is reset, and the feeding is completed.

[0067] The porcelain tube pre-feeding mechanism 3 and the one-end cap assembly mechanism 4 are further provided with a vacuum test mechanism. The vacuum test mechanism adopts the vacuum test mechanism in the patent No. CN108039308A, which is not described here.

[0068] Referring to Figure 4In some embodiments, a porcelain tube length detection mechanism 23 is further disposed between the vacuum testing mechanism and the one-end inner cap assembly mechanism 4. The porcelain tube length detection mechanism 23 includes a detection cylinder 231, an upper detection block 232, a lower detection block 233, a detection probe 234, an analog proximity switch 235, and a propulsion cylinder 236. The detection cylinder 231 is used to drive the upper detection block 232 toward or away from the lower detection block 233. The detection probe 234 is connected to one end of the analog proximity switch 235, which is also connected to the lower detection block 233. The propulsion cylinder 236 drives the lower detection block 233 toward or away from the upper detection block 232. The porcelain tube is fixed by the upper detection block 232 and the lower detection block 233. The analog proximity switch 235 senses the porcelain tube length and calculates the porcelain tube length. Defective semi-finished products are directly screened into a defective product bin. After N defective products are tested continuously, the equipment will shut down and issue an alarm.

[0069] Reference Figure 5 In some embodiments, the inner cap assembly mechanism 4 at one end includes an inner cap feeding vibration plate 401, which is connected to an inner cap feeding track 402, which is connected to a cap-turning wheel 403. One end of the cap-turning wheel 403 is connected to an inner cap track 404, which is connected to an upper stop block 405 above and an inner cap push rod 406 below. The cap-turning wheel 403 detects whether there is a cap-turning phenomenon, and the inner cap continues to move downward to reach the inner cap front track. The inner cap push rod 406 moves upward, so that the inner cap push rod 406 pushes the inner cap toward the lower end of the porcelain tube on the clamping jaw 2. The upper end surface of the porcelain tube is pressed against the upper stop block 405, completing the installation of the inner cap at one end.

[0070] The inner cap pressing mechanism 5 at one end includes a pressing push rod 93 and a pressing upper seat. A pressure sensor 94 is provided on the side of the pressing upper seat facing the pressing push rod 93. The pressing push rod 93 pushes the inner cap upward, and the upper end face of the porcelain tube is attached to the pressing upper seat, applying pressure to the pressure sensor 94. The current pressure value is measured on the pressure sensor 94. When the pressure value reaches the qualified value, the starting component stops moving upward. At this time, the position where the inner cap is pressed into the lower end face of the porcelain tube is qualified.

[0071] The first porcelain tube turning mechanism 6 adopts the porcelain tube turning device of CN217061928U and is not described in detail here. The two-end inner cap assembly mechanism 7 is the same as the one-end inner cap assembly mechanism 4 and is not described in detail here. The two-end inner cap pressing mechanism 8 is the same as the one-end inner cap pressing mechanism 5 and is not described in detail here.

[0072] Reference Figure 6The one-end outer cap assembling mechanism 9 comprises an outer cap track 91, a first driving member 92 and a pressing top rod 93. The outer cap track 91 is provided with a pressing hole. The first driving member 92 drives the pressing top rod 93 to pass through or leave the pressing hole. In the embodiment, the first driving member 92 is an electric cylinder. The outer cap is below the porcelain tube through the outer cap track 91. The first driving member 92 drives the pressing top rod 93 to pass through the pressing hole to press the outer cap to the porcelain tube.

[0073] With reference to Figure 7 In the embodiment, the fuse wire welding automatic assembling machine further comprises an eighth driving member 24, a clamp closing block 25 and a clamp pull hook 26. The eighth driving member 24 is a cylinder. The output end of the eighth driving member 24 is connected to the clamp closing block 25. The clamp pull hook 26 is screwed to the clamp closing block 25. When the wire penetrating and outer cap pressing are completed, the eighth driving member 24 drives the clamp closing block 25 to enter the clamp jaw 2 to open the clamp jaw 2, so that the porcelain tube is conveyed to the position of the wire penetrating mechanism 10.

[0074] With reference to Figure 7 The wire penetrating mechanism 10 comprises a wire releasing assembly 102, a wire penetrating assembly 202, a wire bending assembly 32 and a wire cutting assembly 42. The wire releasing assembly 102 is used to convey the wire to the wire penetrating assembly 202. The wire penetrating assembly 202 comprises a main plate 221 and a second driving member 222. In the embodiment, the second driving member 222 is a cylinder. The output end of the second driving member 222 is connected with a fish eye joint. The other end of the fish eye joint is connected with the main plate 221, so that the main plate 221 is driven to move by the second driving member 222. The main plate 221 is provided with a wire penetrating needle tube 224 and a third driving member 223. In the embodiment, the third driving member 223 is a cylinder. The wire penetrating needle tube 224 is arranged above the outer cap track 91. The wire penetrating assembly 202 further comprises a positioning rod 225. The wire penetrating needle tube 224 is fixed to the positioning rod 225. The third driving member 223 drives the positioning rod 225 to move up and down along the main plate 221, so as to drive the wire penetrating needle tube 224 to move.

[0075] When the wire is penetrated, the porcelain tube is conveyed between the wire penetrating assembly 202 and the outer cap track 91. When the wire releasing assembly 102 conveys the wire through the wire penetrating needle tube 224, the second driving member 222 drives the main plate 221 to move downward. The wire penetrating needle tube 224 with the wire enters the porcelain tube and penetrates the lower end. The third driving member 223 drives the wire penetrating needle tube 224 to move upward and be flush with the lower end of the porcelain tube. The wire is bent to the lower end of the porcelain tube by the wire bending assembly 32. The first driving member 92 drives the pressing top rod 93 to pass through the pressing hole to press the outer cap to the porcelain tube. The second driving member 222 drives the main plate 221 to reset. The wire penetrating needle tube 224 moves upward to the wire cutting assembly 42. The wire cutting assembly 42 cuts the wire on the wire penetrating needle tube 224.

[0076] The outer cap is pressed upward on the porcelain tube by the first driving member 92 through the pressing rod 93 penetrating the pressing hole to realize the simultaneous wire passing and outer cap assembly of the porcelain tube, without the need for other operations, so as to improve the fuse installation efficiency and ensure the installation quality.

[0077] With reference to Figure 8 In some embodiments, the wire folding assembly 32 comprises a forming block 321, a seventh driving member 322, a wire folding cylinder head 323, and a wire folding cylinder plate 324. The forming block 321 is arranged above the outer cap track 91 and is provided with a communication hole penetrating the pressing hole for the pressing rod 93 to penetrate. The output end of the seventh driving member 322 penetrates the wire folding cylinder plate 324, which is used to fix the body of the seventh driving member 322. The output end of the seventh driving member 322 is connected to the wire folding cylinder head 323, which is connected to the forming block 321. The forming block 321 and the wire folding cylinder head 323 are fixed by screwing. In this embodiment, the seventh driving member 322 is a cylinder. After the wire passing needle tube 224 is reset, the wire is exposed to a certain length in the forming block 321. The seventh driving member 322 drives the wire folding cylinder head 323 to drive the forming block 321 to move forward. The wire end at the lower end of the wire passing needle tube 224 is pushed by the forming block 321 and is bent on the wall of the lower end of the porcelain tube.

[0078] With reference to Figure 9 In some embodiments, the wire passing assembly 102 comprises a fifth driving member 121, a wire passing shaft 122, a proximity switch 123, and a wire passing swing rod 124. In this embodiment, the fifth driving member 121 is a speed reducer motor. The fifth driving member 121 drives the wire passing shaft 122 to rotate. The wire passing shaft 122 is used to limit the sleeve fuse reel, that is, the wire passing shaft 122 can be rotated to release the wire of the fuse reel. The fifth driving member 121, the wire passing shaft 122, the proximity switch 123, and the wire passing swing rod 124 are arranged in pairs and correspondingly arranged. Two wire passing shafts 122 are used to simultaneously release the wire of the fuse reel. The wire passing swing rod 124 guides the wire, and then the wire passing assembly 202 is used to realize the operation of passing double wires at the same time. The wire passing swing rod 124 is fixed with a mounting bracket, which is arranged in a limiting rotating manner. The proximity switch 123 is arranged on one side of the wire passing swing rod 124. When the wire passing swing rod 124 swings away from the proximity switch 123, the proximity switch 123 is triggered to control the fifth driving member 121 to drive the wire passing shaft 122 to rotate and release the wire.

[0079] In some embodiments, a wire passing wheel 125 is provided on the wire release rocker 124, and the wire threading assembly 202 further includes a shaping wheel 227, two feed guide wheels 228, a first wire feeding shaft 229, and a second wire feeding shaft 230. The second wire feeding shaft 230 is made of a rubber wheel material. The wire passes through the wire passing wheel 125, the shaping wheel 227, and the two feed guide wheels 228 in sequence, and then passes between the first wire feeding shaft 229 and the second wire feeding shaft 230 to enter the wire threading needle tube 224. In this embodiment, a plurality of shaping wheels 227 are provided, and two rows are provided. The two rows of shaping wheels 227 are staggered, that is, the midpoint of the line connecting the two shaping wheels 227 in one row is on the horizontal symmetry axis of one shaping wheel 227 in the other row, so that the wire can be better tensioned and the wire can be transmitted. The two feed guide wheels 228 are in contact with each other, and the wire passes through the grooves of the two feed guide wheels 228 and then passes between the first wire feeding shaft 229 and the second wire feeding shaft 230. The central axis of the feed guide wheel 228 is arranged perpendicular to the central axis of the first wire feeding shaft 229 and the second wire feeding shaft 230.

[0080] In some embodiments, the wire threading assembly 202 also includes a fourth drive member 226. In this embodiment, the fourth drive member 226 is also a cylinder. The output end of the fourth drive member 226 is connected to a sliding plate, and the second wire feeding shaft 230 is installed on the sliding plate. The fourth drive member 226 drives the sliding plate to drive the second wire feeding shaft 230 to move. After the outer cap is pressed together, the fourth drive member 226 drives the second wire feeding shaft 230 away from the first wire feeding shaft 229, and the second drive member 222 drives the main board 221 to reset. The wire threading needle tube 224 moves upward to the wire cutting assembly 42. The fourth drive member 226 drives the second wire feeding shaft 230 close to the first wire feeding shaft 229 to clamp the wire, and the wire cutting assembly 42 cuts the wire.

[0081] Reference Figure 10 In some embodiments, the wire cutting assembly 42 includes a sixth driver 421 and a wire cutter 422. The wire cutter 422 is located above the outer cap rail 91. When the threading needle tube 224 returns to its original position, the sixth driver 421 drives the wire cutter 422 forward to cut the wire. The cutting position is below the threading needle tube 224 and above the porcelain tube, which means that the fuse installation is completed after the cutting. In this embodiment, the sixth driver 421 is a cylinder, and the wire cutter 422 is screwed to the output end of the cylinder.

[0082] In some embodiments, the wire cutting assembly 42 further includes a cutter seat 423, which is provided with a guide groove 424. The wire cutter 422 is located in the guide groove 424 and moves, thereby being able to stably cut the wire. The cutter seat 423 is also provided with a perforation 425 for the wire threading needle tube 224 to pass through. The central axis of the perforation 425 is located in the same straight line as the central axis of the press-fit hole. The perforation 425 can position and fix the wire threading needle tube 224, and the wire cutter 422 can stably cut the wire.

[0083] Refer again Figure 6 In some embodiments, the one-end outer cap assembling mechanism 9 further comprises a pressure sensor 94, the pressing top rod 93 comprises a first top rod 931 and a second top rod 932, the first driving member 92 is connected to the second top rod 932, and the pressure sensor 94 is installed between the first top rod 931 and the second top rod 932. The first driving member 92 drives the second top rod 932 to move upward, the first top rod 931 presses the outer cap to the lower surface of the porcelain tube to install the outer cap, and the pressure sensor 94 measures the pressure value of the upward pressing. When the pressure value reaches a set qualified value, it indicates that the outer cap is assembled in place, the first driving member 92 is reset, and the one-end outer cap assembling work is completed.

[0084] In the embodiment, the one-end outer cap assembling mechanism 9 further comprises a one-end outer cap vibration disc 95 and a connecting track 96. The connecting track 96 communicates with the outer cap track 91, the connecting track 96 is provided with a reverse cap wheel 403, the outer cap falls from the one-end outer cap vibration disc 95, moves along the connecting track 96 to the outer cap track 91, and the outer cap track 91 away from the connecting track 96 is provided with a limiting block. When the outer cap reaches the limiting block, the central axis of the outer cap is in the same straight line with the central axis of the pressing hole. The outer cap track 91 is further screwed with a cover plate 97, the cover plate 97 can better limit the transmission of the outer cap, and the state of the outer cap can be seen through the cover plate 97.

[0085] Referring again to Figure 7 After the threading and outer cap assembling are completed, the eighth driving member 24 is reset, drives the clip closing block 25 to be reset, and drives the clip pull hook 26 to move forward, away from the clamping jaw 2, so that the clamping jaw 2 clamps the assembled porcelain tube into the one-end outer cap welding mechanism 11.

[0086] Referring again to Figure 11 In some embodiments, the one-end outer cap welding mechanism 11 comprises a ninth driving member 111, a welding positioning rod 112, a tenth driving member 113, and a lower supporting rod 114. The ninth driving member 111 drives the welding positioning rod 112 to move downward, the tenth driving member 113 drives the lower supporting rod 114 to move upward, when the clamping jaw 2 clamps the porcelain tube between the welding positioning rod 112 and the lower supporting rod 114, the ninth driving member 111 drives the welding positioning rod 112 to move downward, and the tenth driving member 113 drives the lower supporting rod 114 to move upward to fix the porcelain tube.

[0087] The one-end outer cap welding mechanism 11 also includes an eleventh driving member 115, a welding seat 116, a welding head 117, and a welding copper ring 118. The eleventh driving member 115 drives the welding seat 116 to move upward or downward. The welding head 117 is screwed to the welding seat 116, and the welding copper ring 118 is connected to the welding head 117. The central axis of the welding copper ring 118 is aligned with the central axis of the lower support rod 114. During welding, the eleventh driving member 115 drives the welding head 117 to move upward, driving the welding copper ring 118 to move upward, and at the same time triggering high-frequency induction heating, so that the welding copper ring 118 is heated and welded to the outer cap at the lower end of the porcelain tube. Under the action of the eleventh driving member 115, the one-end welding lower support rod 114 continues to press the outer cap upward until the welding is in place, and the welding mechanism resets.

[0088] After the outer cap at one end is welded, the length of the semi-finished product is detected. The structure of the semi-finished product length detection mechanism 12 at one end is the same as that of the porcelain tube length detection mechanism 23, and will not be described in detail here.

[0089] After the length test is completed, the sand filling operation is carried out. The sand filling mechanism 13 adopts the porcelain tube sand filling device described in CN217061928U. In this embodiment, the sand filling mechanism 13 is provided in three groups to fill the arc-extinguishing material. The circular holes for filling and drawing the sand for the arc-extinguishing material in the first and second groups are the same size. The drawing die of the third group is smaller and is used for the final replenishment of the arc-extinguishing material. The sand filling mechanism 13 in this embodiment also includes a sand-beating cylinder base and a voice coil motor. The sand-beating cylinder base is provided with a cylinder. While the cylinder is filling the sand, the voice coil motor also starts to vibrate, causing the porcelain tube to vibrate while filling the sand, so that the arc-extinguishing material is more quickly filled into the inner wall of the porcelain tube.

[0090] After the sand filling is completed, it is weighed to check whether it meets the requirements. The sand filling weighing mechanism 14 includes a scale support, and a sand weighing sensor is set below the scale support. The clamping jaw 2 transfers the porcelain tube to the scale support, and the sand weighing sensor senses the weight to obtain the weight information of the porcelain tube.

[0091] After the sand weighing work is completed, the clamping claw 2 transfers the porcelain tube to the two-end outer cap assembly mechanism 15 for two-end outer cap assembly.

[0092] The two-end outer cap assembling mechanism 15 comprises a twelfth driving member 151, a pushing material front clamp 152, a thirteenth driving member 153, a wire folding pushing block 154, a fourteenth driving member 155, a downward pressing rod 156, an outer cap lower pad block 157, a two-end pressure sensor 158, a two-end feeding track 159 and an outer cap guide block 160. The twelfth driving member 151, the thirteenth driving member 153 and the fourteenth driving member 155 are all air cylinders. The twelfth driving member 151 drives the pushing material front clamp 152 to move. The thirteenth driving member 153 drives the wire folding pushing block 154 to move. The wire folding pushing block 154 is provided with a circular arc hole. The outer cap guide block 160 is provided with a moving channel 161 for the wire folding pushing block 154 to pass through. The pushing material front clamp 152 is arranged above the outer cap guide block 160. The two-end feeding track 159 is connected above the outer cap guide block 160. The outer cap lower pad block 157 is arranged on the two-end pressure sensor 158 and faces the downward pressing rod 156. The fourteenth driving member 155 drives the downward pressing rod 156 to move into the circular arc hole and to be close to or away from the outer cap lower pad block 157.

[0093] The upper end surface of the wire folding pushing block 154 and the upper end surface of the outer cap guide block 160 are in the same plane. The thirteenth driving member 153 drives the wire folding pushing block 154 to move forward through the moving channel 161 to perform the wire folding operation. At the same time, the twelfth driving member 151 drives the pushing material front clamp 152 to move forward, so that the outer cap pushed by the two-end feeding track 159 moves forward and corresponds to the circular arc hole on the wire folding pushing block 154. The fourteenth driving member 155 drives the downward pressing rod 156 to move downward to press the outer cap into the circular arc hole and to press into the upper end of the porcelain tube. The lower end surface of the porcelain tube is close to the outer cap lower pad block 157. In the process of continuously pressing the porcelain tube by the downward pressing rod 156, the two-end pressure sensor 158 measures the assembling pressure value. When the pressure value reaches the preset value, the two-end outer cap is assembled in place, and each component is reset. The eighth driving member 24, the clamp closing block 25 and the clamp pulling hook 26 are also arranged at the two-end outer cap assembling mechanism 15. The clamp pulling hook 26 is close to the opening clamp pin on the clamp jaw 2, so that the clamp jaw 2 holds the porcelain tube more firmly.

[0094] The second porcelain tube overturning mechanism 16 has the same structure as the first porcelain tube overturning mechanism 6, which will not be repeated here. The two-end outer cap welding mechanism 17 has the same structure as the one-end outer cap welding mechanism 11, which will not be repeated here. The finished product length detection mechanism 18 has the same structure as the porcelain tube length detection mechanism 23, which will not be repeated here.

[0095] The product power-on detection mechanism 19 adopts the structure of the power-on test mechanism in CN214489150U, which will not be described in detail here; the defective resistor unloading mechanism 20 adopts the structure of the defective product unloading area in CN217061928U to unload defective resistor products after product impedance detection in CN217061928U, which will not be described in detail here; the secondary defective unloading mechanism 21 adopts the structure of the defective product unloading area in CN217061928U to unload products with other defective factors besides resistance, which will not be described in detail here; the good product unloading mechanism 22 adopts the structure of the good product unloading area in CN217061928U, which will not be described in detail here.

[0096] The implementation principle of the automatic assembly machine for fuse threading and welding in the embodiment of the present application is as follows: the porcelain tube is rotated from one workstation to the next workstation through the clamping claws on the turntable 1, and the entire porcelain tube assembly process is completed through the cooperation of various mechanisms. The semi-finished products during the installation of the porcelain tube and the finished products after the installation are inspected by the detection mechanism to ensure the quality of the finished products. Since the porcelain tube can be rotated to different workstations through the turntable 1, efficiency can be improved, thereby ensuring product quality while improving production efficiency.

[0097] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A fuse threading and welding automatic assembly machine, characterized by: It includes a turntable, on which a clamping claw is installed. The clamping claw is used to clamp the porcelain tube. The turntable is used to rotate the porcelain tube to different working positions. The outer periphery of the turntable is provided with: Porcelain tube pre-feeding mechanism, which feeds the porcelain tube to the clamping jaws; One-end inner cap assembly mechanism, used for pre-installation of the inner cap at one end of the porcelain tube; One end inner cap pressing mechanism is used for pressing and fixing the inner cap at one end of the porcelain tube; The first porcelain tube turning mechanism is used to turn the direction of the porcelain tube; Two-end inner cap assembly mechanism, used for pre-installation of inner caps at both ends of porcelain tube; The two-end inner cap pressing mechanism is used for pressing and fixing the inner caps at the two ends of the porcelain tube; One-end outer cap assembly mechanism, used for installing the outer cap at one end of the porcelain tube; Wire threading mechanism, used for threading the porcelain tube; One end outer cap welding mechanism, used for welding the outer cap at one end of the porcelain tube; The semi-finished product length detection mechanism at one end is used to detect the length of the porcelain tube after welding; Sand filling mechanism, used to fill the porcelain tube with arc-proof material; Sand filling weighing mechanism, used to weigh the weight of the porcelain tube after sand filling; Two-end outer cap assembly mechanism, used for installing the outer caps at the two ends of the porcelain tube; The second porcelain tube turning mechanism is used to turn the direction of the porcelain tube; Two-end outer cap welding mechanism, used for welding the outer caps at the two ends of the porcelain tube; Finished product length detection mechanism, used to detect the length of the finished porcelain tube; Product power-on detection mechanism, resistance defective product unloading mechanism, secondary defective product unloading mechanism, and good product unloading mechanism.

2. The automatic fuse threading and welding assembly machine according to claim 1, characterized in that: The porcelain tube anticipation mechanism includes an anticipation hopper, a discharge chute, an electromagnet, an anticipation photoelectric device, a vibrating feed tray, an anticipation fixing seat for fixing the anticipation hopper, and an anticipation main board; the anticipation main board is communicated and connected between the anticipation hopper and the discharge chute, the anticipation fixing seat is screwed to the anticipation main board, the electromagnet is installed at the bottom of the anticipation main board, one end of the discharge chute extends into the vibrating feed tray, the anticipation photoelectric device is screwed to one side of the discharge chute and is located in the vibrating feed tray; The porcelain tube feeding mechanism also includes a feed nozzle, a porcelain tube feeding and taking component, a porcelain tube positioning component and a porcelain tube clamping mechanism. The vibrating feed tray is connected to the feed nozzle, and the porcelain tube enters the porcelain tube feeding and taking component through the feed nozzle. The porcelain tube positioning component is used to position the porcelain tube and assist the porcelain tube feeding component in clamping the porcelain tube; the porcelain tube clamping mechanism is used to open the clamping claws, and the porcelain tube feeding and taking component drives the porcelain tube feeding and taking component to move and allows the porcelain tube to enter the clamping claws.

3. The automatic fuse threading and welding assembly machine according to claim 1, characterized in that: It also includes a vacuum testing mechanism, and a porcelain tube length detection mechanism is also arranged between the vacuum testing mechanism and the one-end inner cap assembly mechanism. The porcelain tube length detection mechanism includes a detection cylinder, a detection upper block, a detection lower block, a detection probe, an analog proximity switch and a propulsion cylinder. The detection cylinder is used to drive the detection upper block to approach or move away from the detection lower block. The detection probe is connected to one end of the analog proximity switch, the detection probe is connected to the detection lower block, and the propulsion cylinder drives the detection lower block to approach or move away from the detection upper block.

4. The automatic fuse threading and welding assembly machine according to claim 1, characterized in that: The inner cap assembly mechanism at one end includes an inner cap feeding vibration plate, the inner cap feeding vibration plate is connected to the inner cap feeding track, the inner cap feeding track is connected to the anti-cap wheel, one end of the anti-cap wheel is connected to the inner cap track, the upper part of the inner cap track is connected to the upper stop block, and the lower part is connected to the inner cap push rod.

5. The automatic fuse threading and welding assembly machine according to claim 1, characterized in that: The one-end outer cap assembly mechanism includes an outer cap track, a first driving member and a pressing push rod. The outer cap track is provided with a pressing hole. The first driving member drives the pressing push rod to pass through or leave the pressing hole.

6. The automatic fuse threading and welding assembly machine according to claim 5, characterized in that: The wire threading mechanism includes a wire unwinding assembly, a wire threading assembly, a wire folding assembly and a wire cutting assembly. The wire unwinding assembly is used to transmit the wire material to the wire threading assembly. The wire threading assembly includes a main board and a second driving member. The second driving member drives the main board to move. The main board is provided with a wire threading needle tube and a third driving member. The wire threading needle tube is provided above the outer cap track. When threading the wire, the porcelain tube is transferred between the wire threading assembly and the outer cap track. When the wire release assembly passes the wire through the wire threading needle tube, the second driving member drives the main board to move downward, and the wire threading needle tube with the wire enters the porcelain tube and passes out from the bottom. The third driving member drives the wire threading needle tube to move upward and be flush with the lower end of the porcelain tube. The wire is bent to the lower end wall of the porcelain tube through the wire folding assembly under the porcelain tube. The first driving member drives the pressing rod to pass through the pressing hole to press the outer cap to the porcelain tube. The second driving member drives the main board to reset, and the wire threading needle tube moves upward to the wire cutting assembly, and the wire cutting assembly cuts off the wire outside the wire threading needle tube.

7. The automatic fuse threading and welding assembly machine according to claim 6, characterized in that: The wire folding assembly includes a forming block, a seventh driving member and a wire folding cylinder head. The forming block is arranged above the outer cap rail and is provided with a connecting hole that is interconnected with the pressing hole for the pressing push rod to pass through. The output end of the seventh driving member is connected to the wire folding cylinder head, and the wire folding cylinder head is connected to the forming block.

8. The automatic fuse threading and welding assembly machine according to claim 6, characterized in that: The wire cutting assembly includes a seventh driving member and a wire cutter. The wire cutter is located above the outer cap track. When the wire threading needle tube is reset, the seventh driving member drives the wire cutter forward to cut the wire.

9. The automatic fuse threading and welding assembly machine according to claim 1, characterized in that: The one-end outer cap welding mechanism includes a ninth driving member, a welding positioning rod, a tenth driving member and a lower support rod, the ninth driving member drives the welding positioning rod to move downward, and the tenth driving member drives the lower support rod to move upward; it also includes an eleventh driving member, a welding seat, a welding head and a welding copper ring, the eleventh driving member drives the welding seat to move upward or downward, the welding head is connected to the welding seat, the welding copper ring is connected to the welding head, and the central axis of the welding copper ring is on the same straight line as the central axis of the lower support rod.

10. The automatic fuse threading and welding assembly machine according to claim 1, characterized in that: The two-end outer cap assembly mechanism includes a twelfth driving member, a front pushing clamp, a thirteenth driving member, a folding wire pushing block, a fourteenth driving member, a lower pressure rod, an outer cap lower pad, two-end pressure sensors, two-end feeding rails and an outer cap guide block. The twelfth driving member drives the front pushing clamp to move, and the thirteenth driving member drives the folding wire pushing block to move. The folding wire pushing block is provided with an arc hole, and the outer cap guide block is provided with a moving channel for the folding wire pushing block to pass through. The front pushing clamp is fittedly arranged above the outer cap guide block, and the two-end feeding rails are connected to the top of the outer cap guide block. The outer cap lower pad is arranged on the two-end pressure sensors and faces the lower pressure rod. The fourteenth driving member drives the lower pressure rod to move into the arc hole and approach or move away from the outer cap lower pad.

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