Fuse threading resistance welding automatic assembling machine

Abstract

The utility model relates to the technical field of fuse assembling equipment, and provides a fuse threading resistance welding automatic assembling machine which comprises a rotating disc, clamping jaws are installed on the rotating disc and used for clamping porcelain tubes, and the rotating disc is used for rotating the porcelain tubes to different stations; the periphery of the rotating disc is sequentially provided with a porcelain tube pre-feeding mechanism. A one-end inner cap preassembling mechanism; a one-end inner cap pressing mechanism; a porcelain tube overturning mechanism; a two-end inner cap preassembling mechanism; a two-end inner cap pressing mechanism; an inner cap length detection mechanism; a threading welding mechanism; a CCD visual detection mechanism; a one-end outer cap assembling mechanism; a one-end semi-finished product length detection mechanism; a two-end wire bending mechanism; a two-end wire welding mechanism; a first sand filling weighing mechanism; a sand filling mechanism; a second sand filling weighing mechanism; a two-end outer cap assembling mechanism; a finished product tension testing mechanism; and a finished product length detection mechanism. Therefore, the automation degree of fuse installation can be improved, and the production efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of fuse assembly equipment, and more particularly to an automatic fuse wire threading resistance welding assembly machine. Background Technology

[0002] The fuse installation process is a meticulous and multi-step manufacturing process, encompassing key procedures such as inner and outer cap installation, wire threading, and soldering. Each of these procedures plays an indispensable role, collectively ensuring that the fuse meets predetermined quality and performance standards. Inner and outer cap installation ensures the integrity of the fuse structure and the reliability of the electrical connection, while wire threading and soldering to the inner cap provide the current conduction path and guarantee that the fuse will correctly melt in the event of an overload.

[0003] However, in the process management of existing production equipment, although the technical execution of each individual process is relatively mature, some significant problems have been exposed in the connection between processes. The main problem is the frequent transfer of fuses between different processes. This transfer not only increases the operational complexity of the entire production process, but also significantly reduces production efficiency. Each transfer requires additional time and manpower, and also introduces unnecessary stoppages and delays into the production process.

[0004] Therefore, this application studies an automatic fuse wire threading resistance welding assembly machine, which can improve the automation level of fuse installation and increase production efficiency. Utility Model Content

[0005] In order to improve the automation level of fuse installation and increase production efficiency, this application provides an automatic fuse wire threading resistance welding assembly machine.

[0006] This application provides an automatic assembly machine for fuse wire threading resistance welding, which adopts the following technical solution:

[0007] An automatic fuse wire threading and resistance welding assembly machine includes a turntable with grippers mounted on it. The grippers are used to hold ceramic tubes, and the turntable is used to rotate the ceramic tubes to different positions. The outer periphery of the turntable is sequentially arranged with:

[0008] The ceramic tube feeding mechanism feeds the ceramic tube into the clamps;

[0009] One-end inner cap pre-installation mechanism, used for the pre-installation of the inner cap at one end of the ceramic tube;

[0010] One-end inner cap pressing mechanism, used for pressing and fixing the inner cap at one end of the ceramic tube;

[0011] A ceramic tube flipping mechanism is used to flip the ceramic tube in the correct direction.

[0012] The two-end inner cap pre-installation mechanism is used for the pre-installation of inner caps at both ends of the ceramic tube;

[0013] The two-end inner cap pressing mechanism is used to press and fix the inner caps at both ends of the ceramic tube;

[0014] The inner cap length detection mechanism is used to detect the length of the inner cap of the ceramic tube after installation.

[0015] The wire threading and welding mechanism is used to thread wires onto a ceramic tube and weld one end of the wire.

[0016] CCD vision inspection equipment is used to inspect whether wire threading and welding are qualified;

[0017] An external cap assembly mechanism is used to assemble an external cap at one end of a ceramic tube.

[0018] A semi-finished product length detection mechanism is used to detect the length of the ceramic tube after the outer cap is assembled at one end;

[0019] Two-end wire bending mechanism, used for bending the wires at both ends of ceramic tubes;

[0020] Two-end wire welding mechanism, used for welding the wires at both ends of the ceramic tube to the inner cap;

[0021] The first sand-filling weighing mechanism is used to weigh the ceramic tube before sand filling.

[0022] Sand filling mechanism, used to fill ceramic tubes with anti-arc extinguishing material;

[0023] The second sand-filling weighing mechanism is used to weigh the ceramic tube after sand filling.

[0024] The two-end cap assembly mechanism is used for installing the two-end caps on the ceramic tube;

[0025] Finished product tensile testing mechanism, used to perform tensile tests on ceramic tubes;

[0026] Finished product length inspection mechanism, used to inspect the length of finished ceramic tubes;

[0027] Product power-on testing mechanism, first defective unloading mechanism, second defective unloading mechanism, and good product unloading mechanism.

[0028] By adopting the above technical solution, the ceramic tubes are transferred to different mechanisms, i.e., to different processes, through the grippers on the turntable, so that they can be processed and inspected at each station. Through a highly automated production method, a complete process from raw material feeding to finished product inspection is realized. The close cooperation of various peripheral mechanisms ensures product quality and production efficiency.

[0029] Optionally, the wire threading and welding mechanism includes a wire feeding mechanism, a wire threading mechanism, a tensioning mechanism, and a first welding mechanism. The wire feeding mechanism releases the wire and threads it through the wire threading mechanism. The wire threading mechanism includes a wire threading tube, which guides the wire into the ceramic tube and extends out of the other end of the ceramic tube. The tensioning mechanism stretches the wire extending out of the other end of the ceramic tube to one side and fits it against the inner cap end face of the ceramic tube.

[0030] Optionally, the first welding mechanism includes a negative electrode welding assembly and a positive electrode welding assembly. The negative electrode welding assembly includes a spot-welded negative electrode welding piece and a first driving member. The first driving member drives the spot-welded negative electrode welding piece to cover the outer periphery of the inner cap of the ceramic tube. The positive electrode welding assembly includes a spot-welded positive electrode welding piece and a second driving member. The central axis of the wire-threading tube and the central axis of the spot-welded positive electrode welding piece are on the same straight line.

[0031] Optionally, the CCD vision inspection mechanism includes a light source, a camera, and an eleventh driving element, wherein the light source is located above the camera, and the eleventh driving element drives the light source to move.

[0032] Optionally, the one-end outer cap assembly mechanism includes a one-end outer cap vibrating plate, a flat vibration track, and an outer cap track. The flat vibration track connects the one-end outer cap vibrating plate and the outer cap track. It also includes a pressure sensor, a pressing top rod, and a twenty-sixth driving member. The pressure sensor is located above the pressing top rod, and the twenty-sixth driving member drives the pressing top rod to move vertically.

[0033] Optionally, the two-end wire bending mechanism includes a twelfth driving member, a bending lower block, a thirteenth driving member, a moving plate, a fourteenth driving member, a wire bending component, a fifteenth driving member, and a pressing rod. The twelfth driving member drives the bending lower block to move vertically, the thirteenth driving member drives the moving plate to move vertically, the fourteenth driving member and the wire bending component are mounted on the moving plate, and drive the wire bending component to move horizontally. The wire bending component has a bending groove, and the fifteenth driving member drives the pressing rod to enter or leave the bending groove.

[0034] Optionally, the two-end wire welding mechanism includes a two-end positive electrode welding assembly and a two-end negative electrode welding assembly, each equipped with a spot welding power line. The two-end positive electrode welding assembly includes a sixteenth driving member and two-end positive electrode welding components, and the two-end negative electrode welding assembly includes a seventeenth driving member and two-end negative electrode welding components. The sixteenth driving member drives the two-end positive electrode welding components to abut against the end face of the inner cap, and the seventeenth driving member drives the two-end negative electrode welding components to cover the outer periphery of the inner cap. A circuit is formed between the two-end positive electrode welding components and the two-end negative electrode welding components.

[0035] Optionally, the two-end outer cap assembly mechanism includes a thirty-first driving component, a pusher clamp, a twenty-seventh driving component, two-end pressure rods, an outer cap under pad, two-end pressure sensors, two-end feeding tracks, and an outer cap guide block. The thirty-first driving component drives the pusher clamp to move. The outer cap guide block has a through arc hole. The pusher clamp is fitted above the outer cap guide block. The pusher clamp has an outer cap receiving cavity. The two-end feeding tracks are connected to the outer cap receiving cavity. The outer cap under pad is disposed on the two-end pressure sensors and faces the two-end pressure rods. The twenty-seventh driving component drives the two-end pressure rods to move into or out of the arc hole and closer to or further away from the outer cap under pad.

[0036] Optionally, the finished product tensile testing mechanism includes a 28th driving component, a 30th driving component, an upper tensile gripper, a 29th driving component, a lower tensile gripper, and a discharge gripper. The 28th driving component drives the 30th driving component to move vertically. The 30th driving component drives the upper tensile gripper to clamp or release the ceramic tube. The 29th driving component drives the discharge gripper to move closer to or away from the lower tensile gripper. The discharge gripper fits against the lower tensile gripper to form a tensile groove. The centerline of the tensile groove is on the same straight line as the centerline of the upper tensile gripper.

[0037] In summary, this application includes at least one of the following beneficial technical effects:

[0038] 1. The ceramic tubes are transferred to different mechanisms, i.e. different processes, by the grippers on the turntable, so that they can be processed and inspected at each station. Through a highly automated production method, a complete process from raw material feeding to finished product inspection is realized. The close cooperation of various peripheral mechanisms ensures product quality and production efficiency.

[0039] 2. The wire is released by the wire feeding mechanism and then enters the wire threading mechanism into the wire threading tube. The wire threading tube guides the wire into the ceramic tube, at which point the wire threading is completed. The tensioning machine pulls the wire to fit against the end face of the inner cap. The first driving component drives the spot welding negative electrode welding component to cover the outer periphery of the inner cap, and the second driving component drives the spot welding positive electrode welding component to abut against the inner cap. At this time, the spot welding negative electrode welding component and the spot welding positive electrode welding component form a circuit, realizing the welding of the wire to the inner cap. Therefore, the wire threading and welding steps can be smoothly connected, improving production efficiency and ensuring product quality. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the structure of the automatic fuse wire threading resistance welding assembly machine according to an embodiment of this application;

[0041] Figure 2 This is a schematic diagram of the wire threading and welding mechanism according to an embodiment of this application;

[0042] Figure 3 A is a partial structural schematic diagram of the wire threading and welding mechanism according to an embodiment of this application;

[0043] Figure 3 B is a schematic diagram of the CCD vision inspection mechanism in an embodiment of this application;

[0044] Figure 4 C is a schematic diagram of the structure of the end cap assembly mechanism in one embodiment of this application;

[0045] Figure 4 D is a schematic diagram of the wire bending mechanism in Embodiment 2 of this application;

[0046] Figure 5 E is a structural schematic diagram of the end wire welding mechanism in Embodiment 2 of this application;

[0047] Figure 5 F is a partial structural schematic diagram of the end wire welding mechanism in Embodiment 2 of this application;

[0048] Figure 5 G is a schematic diagram of the structure of the first sand-filling weighing mechanism 16 in the embodiment of this application;

[0049] Figure 6 H is a schematic diagram of the sand-filling mechanism in an embodiment of this application;

[0050] Figure 6 I is a schematic diagram of the structure of the second sand-filling weighing mechanism 18 in the embodiment of this application;

[0051] Figure 7 J is a structural schematic diagram of the end cap assembly mechanism in Embodiment 2 of this application;

[0052] Figure 7 K is a schematic diagram of the structure of the finished product tensile testing mechanism in an embodiment of this application.

[0053] Reference numerals: 1. Turntable; 2. Gripper; 3. Ceramic tube pre-loading mechanism; 4. One-end inner cap pre-installation mechanism; 5. One-end inner cap pressing mechanism; 6. Ceramic tube flipping mechanism; 7. Two-end inner cap pre-installation mechanism; 8. Two-end inner cap pressing mechanism; 9. Inner cap length detection mechanism;

[0054] 10. Wire threading and welding mechanism; 101. Wire feeding mechanism; 111. Fifth drive component; 120. Wire feeding shaft; 130. Proximity switch; 140. Wire feeding swing arm; 150. Wire guide wheel; 160. Mounting bracket; 102. Wire threading mechanism; 201. Wire threading tube; 202. Shaping wheel; 203. Feed guide wheel; 204. First wire feeding shaft; 205. Second wire feeding shaft; 206. Correction wheel; 207. Main board; 208. Sixth drive component; 209. Fisheye connector; 210. Positioning rod; 211. Seventh drive component; 212. Eighth drive component; 213. Sliding... Plate; 103, Tensioning mechanism; 31, Fourth driving component; 32, Tensioning block; 104, First welding mechanism; 41, Negative electrode welding assembly; 411, Spot-welded negative electrode component; 4111, Spot-welded negative electrode insert; 4112, Negative electrode fixing block; 412, First driving component; 413, Third driving component; 42, Positive electrode welding assembly; 421, Spot-welded positive electrode component; 4211, Positive electrode fixing block; 4212, Spot-welded positive electrode extension post; 422, Second driving component; 425, Pressure regulator; 105, Shredder assembly; 51, Ninth driving component; 52, Shredder blade;

[0055] 11. CCD vision inspection mechanism; 31. Light source; 32. Camera; 33. Eleventh driving component; 34. Camera light source assembly;

[0056] 12. One-end outer cap assembly mechanism; 121. One-end outer cap vibratory feeder; 122. Outer cap track; 123. Pressure sensor; 124. Pressing top rod; 125. Twenty-sixth driving component;

[0057] 13. Mechanism for detecting the length of a semi-finished product at one end;

[0058] 14. Two-end wire bending mechanism; 141. Twelfth driving component; 142. Bending lower top block; 143. Thirteenth driving component; 144. Moving plate; 145. Fourteenth driving component; 146. Wire bending component; 147. Fifteenth driving component; 148. Lower pressure rod; 149. Bending groove;

[0059] 15. Two-end wire welding mechanism; 151. Two-end positive electrode welding assembly; 1511. Sixteenth driving component; 1512. Two-end positive electrode welding component; 15121. Two-end positive electrode conductive block; 15122. Two-end positive electrode extension column; 1513. Two-end pressure regulator;

[0060] 152. Two-terminal negative electrode welding assembly; 1521. Seventeenth driving component; 1522. Two-terminal negative electrode welding component; 15221. Two-terminal negative electrode conductive block; 15222. Two-terminal negative electrode insert;

[0061] 153. Return component; 154. Eighteenth drive component;

[0062] 16. First sand-filling weighing mechanism; 161. First weight sensor; 162. First weighing support; 163. First sand-filling anti-collision bar; 164. First air blowing pipe; 165. Shock-absorbing pad column;

[0063] 17. Sand filling mechanism; 171. Sand filling assembly; 1711. Sand filling hopper; 1712. Twenty-second driving component; 1713. Upper and lower sand filling plates; 1714. Sand filling nozzle; 1715. Sand filling mold; 1716. Twenty-third driving component; 1717. Sliding groove; 172. Vibration assembly; 1721. Twentieth driving component; 1722. Twenty-first driving component; 1723. Vibration clamp; 1724. Smooth seat; 1725. Vibration seat; 1726. Voice coil motor;

[0064] 18. Second sand-filling weighing mechanism; 181. Second weight sensor; 182. Second weighing support; 183. Twenty-fourth driving component; 184. Pulling block; 185. Twenty-fifth driving component; 186. Lifting clamp; 187. Second air blowing pipe;

[0065] 19. Two-end outer cap assembly mechanism; 191. Thirty-first driving component; 192. Pusher clamp; 193. Twenty-seventh driving component; 194. Two-end pressure rod; 195. Outer cap lower pad block; 196. Two-end pressure sensor; 197. Outer cap guide block; 198. Arc hole; 199. Outer cap receiving cavity;

[0066] 20. Finished product tensile testing mechanism; 2001. Twenty-eighth driving component; 2002. Thirtieth driving component; 2003. Upper tensile gripper; 2004. Twenty-ninth driving component; 2005. Lower tensile gripper; 2006. Unloading gripper;

[0067] 21. Finished product length detection mechanism; 22. Product power-on detection mechanism; 23. First defective unloading mechanism; 24. Second defective unloading mechanism; 25. Good product unloading mechanism. Detailed Implementation

[0068] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0069] This application discloses an automatic fuse wire threading and resistance welding assembly machine. (Refer to...) Figure 1The automatic assembly machine for resistance welding of fuse wire includes a turntable 1, on which grippers 2 are installed. The grippers 2 are used to hold ceramic tubes, and the turntable 1 is used to rotate the ceramic tubes to different work positions. The outer periphery of the turntable 1 is sequentially equipped with: a ceramic tube feeding mechanism 3 for feeding the ceramic tubes to the grippers 2; a one-end inner cap pre-installation mechanism 4 for pre-installing the inner cap at one end of the ceramic tube; a one-end inner cap pressing mechanism 5 for pressing and fixing the inner cap at one end of the ceramic tube; a ceramic tube flipping mechanism 6 for flipping the ceramic tube; a two-end inner cap pre-installation mechanism 7 for pre-installing the inner caps at both ends of the ceramic tube; a two-end inner cap pressing mechanism 8 for pressing and fixing the inner caps at both ends of the ceramic tube; an inner cap length detection mechanism 9 for detecting the length of the ceramic tube after the inner caps are installed; a wire threading and welding mechanism 10 for threading wires into the ceramic tube and welding one end of the wire; a CCD vision inspection mechanism 11 for detecting whether the wire threading and welding are qualified; a one-end outer cap assembly mechanism 12 for assembling the outer cap at one end of the ceramic tube; and a one-end half-cap assembly mechanism. The system includes: a finished product length detection mechanism 13 for detecting the length of the ceramic tube after the outer cap is assembled at one end; a two-end wire bending mechanism 14 for bending the wires at both ends of the ceramic tube; a two-end wire welding mechanism 15 for welding the wires at both ends of the ceramic tube to the inner cap; a first sand filling and weighing mechanism 16 for weighing the ceramic tube before sand filling; a sand filling mechanism 17 for filling the ceramic tube with anti-arc extinguishing material; a second sand filling and weighing mechanism 18 for weighing the ceramic tube after sand filling; a two-end outer cap assembly mechanism 19 for installing the outer caps at both ends of the ceramic tube; a finished product tensile testing mechanism 20 for performing a tensile test on the ceramic tube; a finished product length detection mechanism 21 for detecting the length of the finished ceramic tube; a product electrical conduction detection mechanism 22; a first defective unloading mechanism 23; a second defective unloading mechanism 24; and a good product unloading mechanism 25. The first defective unloading mechanism 23 is used to unload defective products with poor resistance, and the second defective unloading mechanism 24 is used to unload defective products with poor length.

[0070] The ceramic tubes are transferred to different mechanisms, i.e. different processes, by the grippers 2 on the turntable 1, so that they can be processed and inspected at each station. Through a highly automated production method, a complete process from raw material feeding to finished product inspection is realized. The close cooperation of various peripheral mechanisms ensures product quality and production efficiency.

[0071] The ceramic tube anticipation mechanism 3 adopts the material anticipation device in CN216176056U, which will not be described in detail here.

[0072] The inner cap assembly mechanism at one end adopts the ceramic tube two-end inner cap one-assembly device in CN217061928U, which will not be described in detail here.

[0073] The inner cap pressing mechanism 5 adopts the inner cap pressing assembly in CN117428474A, which will not be described in detail here.

[0074] The ceramic tube flipping mechanism 6 adopts the ceramic tube flipping device of CN217061928U, which will not be described in detail here. The two-end inner cap assembly mechanism is the same as the one-end inner cap assembly mechanism, which will not be described in detail here. The two-end inner cap pressing mechanism 8 is the same as the one-end inner cap pressing mechanism 5, which will not be described in detail here.

[0075] The inner cap length detection mechanism 9 uses the CN214489150U length testing device, which will not be described in detail here.

[0076] Reference Figure 2 and Figure 3 A. In some embodiments, the wire threading and welding mechanism 10 includes a wire feeding mechanism 101, a wire threading mechanism 102, a tensioning mechanism 103, and a first welding mechanism 104. The wire feeding mechanism 101 releases the wire and threads it through the wire threading mechanism 102. The wire threading mechanism 102 includes a wire threading tube 201, which guides the wire into the ceramic tube and extends to the other end of the ceramic tube. The tensioning mechanism 103 stretches the wire extending to the other end of the ceramic tube to one side and fits it against the inner cap end face of the ceramic tube. In this embodiment, the tensioning mechanism 103 includes a fourth driving member 31 and a tensioning block 32. The tensioning block 32 has a tensioning groove. The wire is fed into the tensioning groove. The fourth driving member 31 drives the tensioning block to retract. The tensioning groove causes the wire to bend to one side and fit against the inner cap end face.

[0077] The first welding mechanism 104 includes a negative electrode welding assembly 41 and a positive electrode welding assembly 42. The negative electrode welding assembly 41 includes a spot-welded negative electrode welding piece 411 and a first driving member 412. The first driving member 412 drives the spot-welded negative electrode welding piece 411 to cover the outer periphery of the inner cap of the ceramic tube. In some embodiments, the first driving member 412 is a gripper cylinder. The spot-welded negative electrode welding piece 411 includes two spot-welded negative electrode inserts 4111, which are respectively connected to the two grippers 2 of the gripper cylinder. When the two spot-welded negative electrode inserts 4111 are in contact, they have a covering groove in the middle. When the gripper cylinder drives the two spot-welded negative electrode inserts 4111 to move closer to each other, the inner cap is in contact with the groove wall of the covering groove, thereby achieving the covering of the inner cap by the spot-welded negative electrode welding piece 411.

[0078] The positive electrode welding assembly 42 includes a positive electrode welding component 421 and a second driving component 422. The second driving component 422 is a telescopic cylinder. The central axis of the wire-threading tube 201 is aligned with the central axis of the positive electrode welding component 421, ensuring that the positive electrode welding component 421 is precisely positioned against the end of the inner cap, thus guaranteeing welding quality. The positive electrode welding component 421 and the negative electrode welding component 411 are equipped with welding power lines. The second driving component 422 drives the positive electrode welding component 421 to move vertically upwards, fitting against the inner cap of the ceramic tube and forming a circuit with the negative electrode welding component 411, thereby ensuring stable welding between the inner cap and the wire. In this embodiment, the welding power lines on the positive electrode welding component 421 and the negative electrode welding component 411 are connected to the inverter power supply unit. The welding operation is completed by setting the host parameters and triggering the welding.

[0079] In this embodiment, the negative electrode welding assembly 41 further includes a third driving member 413, which drives the first driving member 412 to move vertically. The third driving member 413 is a cylinder, which enables the first driving member 412 to move to a corresponding height when welding of the inner cap is required, thereby enabling the negative electrode welding assembly 411 to move to the corresponding height for welding of the inner cap.

[0080] The spot-welding negative electrode welding component 411 also includes a negative electrode fixing block 4112. The output end of the first driving component 412 is connected to the negative electrode fixing block 4112, and the spot-welding negative electrode insert 4111 is connected to the negative electrode fixing block 4112. In this embodiment, the spot-welding power cable is installed on the negative electrode fixing block 4112.

[0081] The positive electrode welding component 421 includes a positive electrode fixing block 4211 and a positive electrode extension post 4212. The positive electrode extension post 4212 is connected to one side of the positive electrode fixing block 4211, and the second driving component 422 is connected to the side of the positive electrode fixing block 4211 away from the positive electrode extension post 4212. The central axis of the positive electrode extension post 4212 is on the same straight line as the central axis of the needle tube, so that the welding of the inner cap is achieved by the positive electrode extension post 4212 fitting against the inner cap. In this embodiment, the positive electrode welding power line is installed on the positive electrode fixing block 4211, and the end of the positive electrode extension post 4212 is a conical structure, which allows it to extend into the inner cap, and the circumference of the cone can better fit against the end of the inner cap.

[0082] In this embodiment, the positive electrode welding assembly 42 also includes a positive electrode guide block with a guide hole. The positive electrode extension post 4212 for spot welding extends into the guide hole and slides, so that it can fit more accurately to the inner cap for welding.

[0083] The first welding mechanism 104 also includes a pressure regulator 425, which is connected between the output end of the second drive member 422 and the positive electrode fixing block 4211. When the second drive member 422 drives the positive electrode fixing block 4211 upward to press against the inner cap, the pressure regulator 425 also moves upward and senses the pressure exerted by the second drive member 422 on the positive electrode fixing block 4211, so that the pressure exerted on the inner cap meets the requirements and ensures the stability of the inner cap welding.

[0084] The wire feeding assembly includes a fifth drive component 111, a wire feeding shaft 120, a proximity switch 130, and a wire feeding lever 140. In this embodiment, the fifth drive component 111 is a geared motor. The fifth drive component 111 drives the wire feeding shaft 120 to rotate. The wire feeding shaft 120 is used to limit the movement of the fused wire reel, that is, the rotation of the wire feeding shaft 120 can release the wire from the fused wire reel. In this embodiment, at least two sets of the fifth drive component 111, the wire feeding shaft 120, the proximity switch 130, and the wire feeding lever 140 are provided, and they are arranged in a one-to-one correspondence. In this embodiment, two sets are provided for each set. The two wire feeding shafts 120 simultaneously feed the fused wire reel, and the wire feeding lever 140 guides the wire. Then, through the wire threading assembly, the operation of threading two wires simultaneously can be achieved. Multiple sets can also be provided as needed to achieve the effect of threading multiple wires simultaneously. The wire feeding swing arm 140 is fixed with a mounting bracket 160. The mounting bracket 160 limits the rotation setting. The proximity switch 130 is set on one side of the wire feeding swing arm 140. When the wire feeding swing arm 140 swings away from the proximity switch 130, it triggers the proximity switch 130 to control the fifth driving component 111 to drive the wire feeding shaft 120 to rotate and feed the wire.

[0085] The wire feeding lever 140 is equipped with a wire guide roller 150, and the wire threading assembly is also equipped with two wire guide rollers 150. The wire threading assembly also includes a shaping roller 202, two feeding guide rollers 203, a first wire feeding shaft 204, and a second wire feeding shaft 205. The second wire feeding shaft 205 is made of rubber. The wire passes through the wire feeding lever 140 and the wire guide rollers 150 of the wire threading assembly in sequence, and continues to pass vertically through the shaping roller 202. The shaping roller 202 straightens the wire. After passing between the two feeding guide rollers 203, it passes between the first wire feeding shaft 204 and the second wire feeding shaft 205 and enters the wire threading tube 201. In this embodiment, two sets of shaping wheels 202 are provided. One set has three columns, with the shaping wheels 202 on both sides and the shaping wheels 202 in the middle column being staggered. The other set has two columns, and the two columns of shaping wheels 202 are staggered, that is, the midpoint of the line connecting two shaping wheels 202 in one column is on the horizontal axis of symmetry of one shaping wheel 202 in the other column, so that the wire can be better tensioned and the wire can be conveyed. In this embodiment, the central axes of the two sets of shaping wheels 202 are perpendicular to each other, and a correction wheel 206 is provided between the two sets of shaping wheels 202. Two feed guide rollers 203 abut against each other, and the wire passes through the grooves of the two feed guide rollers 203, and then passes between the first wire feeding shaft 204 and the second wire feeding shaft 205. The central axis of the feed guide rollers 203 is set perpendicular to the central axis of the first wire feeding shaft 204 and the second wire feeding shaft 205. The first wire feeding shaft 204 and the second wire feeding shaft 205 are driven to rotate by a stepper motor, so that the wire moves downward in the wire threading tube 201 under the twisting of the first wire feeding shaft 204 and the second wire feeding shaft 205.

[0086] The threading assembly also includes a main board 207 and a sixth driving component 208. In this embodiment, the sixth driving component 208 is a cylinder. The output end of the sixth driving component 208 is connected to a fisheye connector 209, and the other end of the fisheye connector 209 is connected to the main board 207, so that the fisheye connector 209 is driven by the sixth driving component 208 to move the main board 207. The threading assembly also includes a positioning rod 210 and a seventh driving component 211. In this embodiment, the seventh driving component 211 is a cylinder. The threading tube 201 is fixed. The positioning rod 210 is fixed, and the seventh driving member 211 drives the positioning rod 210 to move up and down along the main board 207, thereby driving the wire threading tube 201 to move. When wire threading is required, the seventh driving member 211 drives the main board 207 to move downward, so that the wire threading tube 201 enters the inner wall of the ceramic tube. After the wire threading tube 201 reaches the lower end of the ceramic tube, the wire moves downward in the wire threading tube 201 and extends into the tensioning groove of the tensioning block 32 under the twisting of the first wire feeding shaft 204 and the second wire feeding shaft 205.

[0087] In this embodiment, the wire threading assembly further includes an eighth driving member 212, which is a cylinder. The output end of the eighth driving member 212 is connected to a sliding plate 213. The second wire feeding shaft 205 is mounted on the sliding plate 213. The eighth driving member 212 drives the sliding plate 213 to move the second wire feeding shaft 205. The eighth driving member 212 drives the second wire feeding shaft 205 away from or near the first wire feeding shaft 204. After the wire threading and welding are completed, the eighth driving member 212 drives the second wire feeding shaft 205 away from the first wire feeding shaft 204, and all components are reset. The sixth driving member 208 drives the main board 207 to move upward.

[0088] In this embodiment, the wire threading and welding mechanism 10 also includes a wire cutting assembly 105. The sixth driving member 208 drives the main board 207 to move upward to the cutting assembly, that is, the wire threading tube 201 moves upward to the wire cutting assembly 105. The eighth driving member 212 drives the second wire feeding shaft 205 to approach the first wire feeding shaft 204 to clamp the wire. The wire cutting assembly 105 cuts the wire. In this embodiment, the wire cutting assembly 105 includes a wire cutting knife 52 and a ninth driving member 51. The ninth driving member 51 is a cylinder that drives the wire cutting knife 52 forward to cut the wire.

[0089] In this embodiment, the wire threading and welding mechanism 10 further includes a tenth driving component, a clamp closing block, and a clamp hook. The tenth driving component is a cylinder, and its output end is connected to the clamp closing block. The clamp hook is screwed to the clamp closing block. The tenth driving component drives the clamp closing block to close the product clamp before the ceramic tube is threaded, so that the ceramic tube will not easily slide up and down in the product clamp during the threading process.

[0090] Reference Figure 3 B. The CCD vision inspection mechanism 11 is located between the wire threading and welding mechanism 10 and the one-end cap assembly mechanism 12. The CCD vision inspection mechanism 11 includes a light source 31, a camera 32, and an eleventh driving component 33. The light source 31 is located above the camera 32. The eleventh driving component 33 is a telescopic cylinder that drives the light source 31 to move. The eleventh driving component 33 drives the light source 31 to a suitable position, and the camera 32 and the light source 31 capture image information of the top and bottom surfaces of the ceramic tube. This information is then transmitted to the CCD vision image processing system. Based on pixel distribution, brightness, color, and other information, the image system converts the data into digital signals. The image system performs various calculations on the digital signals to extract features from the side, top, and bottom surfaces of the product. The images are then directly displayed on the screen. The right side of the screen is set with image parameter templates. Based on the appearance features and laser engraving features on the displayed image, the image processing system calculates and compares the parameters to automatically determine whether the ceramic tube welding is qualified.

[0091] In this embodiment, the CCD vision inspection mechanism 11 also includes a camera 32 light source 31 assembly, which is disposed on one side of the light source 31 to ensure that the light source 31 can emit light and illuminate the ceramic tube in the expected manner.

[0092] Reference Figure 4 C. In some embodiments, the outer cap assembly mechanism 12 includes an outer cap vibrating plate 121, a flat vibration track, and an outer cap track 122. The flat vibration track connects the outer cap vibrating plate 121 and the outer cap track 122. The outer cap is shaken off from the outer cap vibrating plate 121 and moves along the flat vibration track into the outer cap track 122. A cover plate is also screwed onto the outer cap track 122. The cover plate can better limit the transmission of the outer cap, and the state of the outer cap can be seen through the cover plate.

[0093] The outer cap assembly mechanism 12 also includes a pressure sensor 123, a pressing rod 124, and a 26th driving component 125. The pressure sensor 123 is located above the pressing rod 124. The 26th driving component 125 is an electric cylinder. The 26th driving component 125 drives the pressing rod 124 to move vertically. The pressing rod 124 presses the outer cap down onto the ceramic tube to install the outer cap. At the same time, the pressure sensor 123 above the ceramic tube measures the upward pressing pressure value. After reaching the set qualified value, it indicates that the outer cap is assembled in place. The first driving component 412 is reset, and the assembly of the outer cap at one end is completed.

[0094] In this embodiment, a heating rod is provided at the front end of the outer cap track 122 for preheating the outer cap on the outer cap track 122, so that the solder paste on the inner wall of the outer cap reaches about 100°, so that the inner cap, the wire material and the outer cap can be better fused together.

[0095] The length detection mechanism 13 for one end of the semi-finished product adopts the length testing device CN214489150U, which will not be described in detail here.

[0096] When the ceramic tube is conveyed to the two-end wire bending mechanism through the equipment gripper 2, the two-end wire bending mechanism bends the wire to the inner cap end face of the two ends of the ceramic tube, and then conveys it to the two-end wire welding mechanism through the equipment gripper 2 to weld the wire and the inner cap.

[0097] Reference Figure 4D. In some embodiments, the two-end wire bending mechanism includes a twelfth driving member 141, a bending lower top block 142, a thirteenth driving member 143, a moving plate 144, a fourteenth driving member 145, a wire bending member 146, a fifteenth driving member 147, and a pressing rod 148. The twelfth driving member 141 drives the bending lower top block 142 to move vertically, the thirteenth driving member 143 drives the moving plate 144 to move vertically, the fourteenth driving member 145 and the wire bending member 146 are mounted on the moving plate 144, and drive the wire bending member 146 to move horizontally. The wire bending member 146 has a bending groove 149, and the fifteenth driving member 147 drives the pressing rod 148 to enter or leave the bending groove 149.

[0098] The twelfth drive component 141, the thirteenth drive component 143, the fourteenth drive component 145, and the fifteenth drive component 147 are all telescopic cylinders. The twelfth drive component 141 drives the bending lower top block 142 to press the lower end face of the ceramic tube upward. The thirteenth drive component 143 drives the moving plate 144 to move the fourteenth drive component 145 and the wire bending component 146 upward to the position corresponding to the wire on both ends of the ceramic tube. The fourteenth drive component 145 drives the wire bending component 146 to move forward, so that the wire enters the bending groove 149 and bends the wire to one side through the bending groove 149. The fifteenth drive component 147 drives the lower pressure rod 148 to enter the bending groove 149 and press the wire against the inner cap to achieve the bending of the wire.

[0099] Reference Figure 5 E and Figure 5 F, the two-end wire welding mechanism includes a two-end positive electrode welding assembly 151 and a two-end negative electrode welding assembly 152, both equipped with welding power lines. The two-end positive electrode welding assembly 151 includes a sixteenth driving member 1511 and a two-end positive electrode welding member 1512. The sixteenth driving member 1511 is a telescopic cylinder. The two-end negative electrode welding assembly 152 includes a seventeenth driving member 1521 and a two-end negative electrode welding member 1522. The sixteenth driving member 1511 drives the two-end positive electrode welding member 1511... 512 abuts against the end face of the inner cap, the seventeenth driving member; 1521 drives the two negative electrode welding parts 1522 to cover the outer periphery of the inner cap, and a circuit is formed between the two positive electrode welding parts 1512 and the two negative electrode welding parts 1522. In this embodiment, the spot welding power line is connected to the inverter resistor power supply host. The host is used to set parameters and trigger welding, so that a circuit is formed between the two positive electrode welding parts 1512 and the two negative electrode welding parts 1522, welding the wire and the inner cap together.

[0100] In some embodiments, the two-terminal positive electrode welding component 1512 includes a two-terminal positive electrode conductive block 15121 and a two-terminal positive electrode extension post 15122. The two-terminal positive electrode extension post 15122 is connected to one side of the two-terminal positive electrode conductive block 15121, and the sixteenth driving member 1511 drives the two-terminal positive electrode conductive block 15121 to move vertically. In this embodiment, the welding power line is disposed on the two-terminal positive electrode conductive block 15121, and the sixteenth driving member 1511 drives the two-terminal positive electrode conductive block 15121 to move the two-terminal positive electrode extension post 15122 downward to abut against the two end faces of the inner cap of the ceramic tube.

[0101] In some embodiments, the two-terminal positive electrode welding assembly 151 further includes a two-terminal pressure regulator 1513, which is connected between the output terminal of the sixteenth drive member 1511 and the two-terminal positive electrode conductive block 15121. The sixteenth drive member 1511 drives the two-terminal pressure regulator to move downward, and the two-terminal positive electrode extension post 15122 abuts against the two end faces of the ceramic tube. By obtaining the downward pressure on the ceramic tube through the two-terminal pressure regulator, the relevant pressure can be better adjusted.

[0102] In some embodiments, the two-terminal negative electrode welding component 1522 includes two-terminal negative electrode conductive blocks 15221 and two-terminal negative electrode inserts 15222, and a seventeenth driving component; 1521 is a gripper cylinder, with each of the two grippers 2 of the gripper cylinder connected to a two-terminal negative electrode conductive block 15221, and each of the two-terminal negative electrode conductive blocks 15221 connected to a two-terminal negative electrode insert 15222; the seventeenth driving component; 1521 drives the two negative electrode conductive blocks to bring the two two-terminal negative electrode inserts 15222 into contact, forming a clamping groove. In this embodiment, the spot welding power line is connected to the two-terminal negative electrode conductive blocks 15221. When the two-terminal negative electrode inserts 15222 are in contact, the inner cap of the ceramic tube is in contact with the clamping groove, realizing the coverage of the outer periphery of the inner cap by the two-terminal negative electrode inserts 15222.

[0103] In some embodiments, the two-end wire welding mechanism further includes a return member 153 and an eighteenth driving member 154, the eighteenth driving member 154 driving the return member 153 to move vertically. The central axis of the return member 153 is on the same straight line as the central axis of the two-end positive electrode extension column 15122. The ceramic tube rotates between the return member 153 and the two-end positive electrode extension column 15122, and the central axis of the ceramic tube is also on the same straight line as their central axes. The eighteenth driving member 154 is a telescopic cylinder, the eighteenth driving member 154 driving the return member 153 to move upward and press the ceramic tube upward to the position corresponding to the two-end negative electrode welding assembly 152, so that the two-end negative electrode insert 15222 can accurately cover the inner cap.

[0104] A CCD vision inspection mechanism 11 is also provided on one side of the two-end wire welding mechanism and the second sand filling weighing mechanism 18, which is consistent with the above structure and will not be described in detail here.

[0105] Reference Figure 5G. The first sand-filling weighing mechanism 16, the sand-filling mechanism 17, and the second sand-filling weighing mechanism 18 are all equipped with corresponding clamping mechanisms. The clamping mechanisms are used to open the clamps 2 that hold the ceramic tube, so that the ceramic tube falls into the corresponding mechanism for weighing or sand-filling operations. In this embodiment, the clamping mechanism includes a nineteenth driving member, a clamping rack, and a clamping cam. The nineteenth driving member is a telescopic cylinder. The clamping rack and the clamping cam mesh with each other. The nineteenth driving member drives the clamping rack to move forward or backward and drives the clamping cam to rotate. The clamping cam is an elliptical cylindrical structure. When it rotates to one side, it opens the pin of the clamp 2, and the clamp 2 releases the ceramic tube. When it rotates to the other side, it disengages from the pin of the clamp 2, and the clamp 2 holds the ceramic tube, making it easy to open the clamp 2.

[0106] Reference Figure 5 G. The first sand-filling weighing mechanism 16 is used to weigh the ceramic tube before sand filling. The first sand-filling weighing mechanism 16 includes a first weight sensor 161 and a first weighing support 162. The first weighing support 162 is installed on the first weight sensor 161. The sand-filling mechanism 17 is used for the sand-filling operation of the ceramic tube. In this embodiment, two sets of sand-filling mechanisms 17 are provided. The second sand-filling weighing mechanism 18 is used to weigh the ceramic tube after sand filling. The second sand-filling weighing mechanism 18 includes a second weight sensor 181 and a second weighing support 182. The second weight sensor 181 is installed on the second weighing support 182. The difference between the weight of the ceramic tube obtained by the second sand-filling weighing mechanism 18 and the weight of the ceramic tube obtained by the first sand-filling weighing mechanism 16 is the weight of the filler.

[0107] When the ceramic tube rotates to the position of the first sand-filling weighing mechanism 16 via the clamp, the clamp 2 is opened by the clamping mechanism, and the ceramic tube is released by the clamp 2 and falls onto the first weighing support 162. After the weight of the ceramic tube is obtained by the first weight sensor 161, the clamping mechanism leaves the mechanism, and the clamp 2 holds the ceramic tube to the sand-filling mechanism 17 for sand filling. After sand filling is completed, it is transferred to the second sand-filling weighing mechanism 18. The clamp 2 is opened by the clamping mechanism, and the sand-filled ceramic tube is released by the clamp and falls onto the second weighing support 182. After the weight of the ceramic tube is obtained by the second weight sensor 181, the difference between this weight and the weight obtained by the first weight sensor 161 is calculated. This difference is the weight of the filler. Therefore, the weight of the filler in the fuse can be obtained conveniently and accurately. If the difference is qualified, it can be transferred to the next process. If it is not qualified, the unqualified product is removed, thereby ensuring the yield rate of the fuse.

[0108] In some embodiments, the first sand-filling weighing mechanism 16 further includes a first sand-filling anti-collision bar 163, which is disposed on one side of the first weighing support 162. When the ceramic tube is rotated to the first sand-filling weighing mechanism 16 by the gripper 2, the ceramic tube first passes above the first sand-filling anti-collision bar 163 to prevent the ceramic tube from deflecting downward and impacting the first weighing support 162.

[0109] In some embodiments, the first sand-filling weighing mechanism 16 further includes a first air-blowing pipe 164, the outlet of which faces the first weighing platform 162. Before sand filling, air is blown onto the first weighing platform 162 through the first air-blowing pipe 164 to prevent foreign objects on the platform from affecting the weighing weight of the ceramic tube. In this embodiment, the first sand-filling weighing mechanism 16 also includes a shock-absorbing pad 165, which supports the first weight sensor 161, allowing for better shock absorption when the ceramic tube falls onto the first weighing platform 162.

[0110] Reference Figure 6 In some embodiments, the sand-filling mechanism 17 includes a sand-filling assembly 171 and a shaking assembly 172. The shaking assembly 172 includes a twentieth drive member 1721, a twenty-first drive member 1722, and a shaking clamp 1723. The twentieth drive member 1721 drives the twenty-first drive member 1722 to move. In this embodiment, the twentieth drive member 1721 is a telescopic cylinder, and its output end is connected to a smooth seat 1724. The twenty-first drive member 1722 is disposed on the smooth seat 1724. The twentieth drive member 1721 drives the smooth seat 1724 to move, thereby moving the twenty-first drive member 1722. The twenty-first drive member 1722 drives the shaking clamp 1723 to clamp or release the ceramic tube. 171 includes a sand-filling hopper 1711, a twenty-second driving component 1712, sand-filling upper and lower plates 1713, a sand-filling nozzle 1714, a sand-filling mold 1715, and a twenty-third driving component 1716. The fourth driving component 31 drives the sand-filling hopper 1711 to move vertically. The sand-filling upper and lower plates 1713 are located at the discharge end of the sand-filling hopper 1711. The sand-filling nozzle 1714 is located on the side of the sand-filling upper and lower plates 1713 away from the sand-filling hopper 1711. The sand-filling upper and lower plates 1713 are provided with mutually penetrating sliding grooves 1717 and discharge through holes. The twenty-third driving component 1716 drives the sand-filling mold 1715 to move along the sliding grooves 1717. The sand-filling mold communicates with or covers the discharge through holes.

[0111] After the ceramic tube is weighed, it rotates through the gripper 2 to the sand-filling mechanism 17. The twentieth drive component 1721 drives the third drive component 413 forward. The twenty-first drive component 1722 is a clamping cylinder that drives the vibrating clamp 1723 to open, allowing the ceramic tube to enter the vibrating clamp 1723. The twenty-first drive component 1722 vibrates the clamp 1723 to hold the ceramic tube, and the clamp is opened by the clamping mechanism. At this time, the ceramic tube is fixed by the vibrating clamp 1723. The twentieth drive component 1721 drives the twenty-first drive component 1722, that is... The shaking clamp 1723 retracts to below the sand filling nozzle 1714. The twenty-second drive component 1712 drives the sand filling hopper 1711 to move downward (the twenty-second drive component 1712 is fixed on the equipment frame). The twenty-third drive component 1716 drives the sand filling mold 1715 forward and brings the arc-extinguishing material in the sand filling mold 1715 to the discharge through hole position. The arc-extinguishing material falls into the sand filling nozzle 1714 along the discharge through hole. The sand filling nozzle 1714 extends into the ceramic tube, and the arc-extinguishing material enters the ceramic tube through the sand filling nozzle 1714.

[0112] The vibration assembly 172 also includes a vibration base 1725 and a voice coil motor 1726, with the voice coil motor 1726 disposed on one side of the vibration base 1725. In this embodiment, the twentieth drive component 1721 is mounted on the vibration base 1725, and the smoothing seat 1724 slides on the vibration base 1725. When the arc-extinguishing material enters the ceramic tube through the sand filling nozzle 1714, the voice coil motor 1726 operates, causing the ceramic tube to vibrate through the vibration clamp 1723, thereby allowing the arc-extinguishing material to fill the ceramic tube more quickly.

[0113] Reference Figure 6 In some embodiments, the second sand-filling weighing mechanism 18 further includes a twenty-fourth driving member 183, a pulling block 184, a twenty-fifth driving member 185, and an upward clamp 186. The twenty-fourth driving member 183 is a telescopic cylinder, and the twenty-fifth driving member 185 is a gripper cylinder. The twenty-fourth driving member 183 drives the pulling block 184 to move vertically. The twenty-fourth driving member 183 is installed on the pulling block 184 and drives the upward clamp 186 to clamp or release the ceramic tube. The upward clamp 186 is located above the second weighing support 182. After the ceramic tube is weighed, the twenty-fourth driving member 183 drives the upward clamp 186 to descend to the position of the ceramic tube, and then the twenty-fifth driving member 185 drives the upward clamp 186 to clamp the ceramic tube. The twenty-fourth driving member 183 then drives the upward clamp 186 to rise to the position of the ceramic tube clamp. The clamping mechanism releases the ceramic tube clamp, and the ceramic tube clamp holds the ceramic tube, which can then be transported to the next process.

[0114] In some embodiments, the second sand-filling weighing mechanism 18 further includes a second air-blowing pipe 187, the air outlet of which faces the second weighing platform 182. This allows foreign objects on the weighing platform to be blown away by the second air-blowing pipe 187 before weighing the ceramic tube, making the weight of the ceramic tube more accurate. In this embodiment, a sand-filling anti-collision bar is also provided on one side of the second weighing platform 182.

[0115] Reference Figure 7 J, the two-end outer cap assembly mechanism 19 includes a thirty-first driving component 191, a pusher clamp 192, a twenty-seventh driving component 193, two-end pressure rods 194, an outer cap lower pad 195, two-end pressure sensors 123, two-end feeding tracks, and an outer cap guide block 197. The thirty-first driving component 191 is a pneumatic cylinder, and the twenty-seventh driving component 193 is an electric cylinder. The thirty-first driving component 191 drives the pusher clamp 192 to move, and the outer cap guide block 197 is through-cut. There is an arc hole 198. The pusher clamp 192 is fitted above the outer cap guide block 197. The pusher clamp 192 has an outer cap receiving cavity 199. The two-end feeding tracks are connected to the outer cap receiving cavity 199. The outer cap lower pad 195 is set on the two-end pressure sensor 123 and faces the two-end pressure rod 194. The twenty-seventh driving member 193 drives the two-end pressure rod 194 to move into or out of the arc hole 198 and move closer to or away from the outer cap lower pad 195.

[0116] The material is fed into the outer cap cavity 199 by the two-end feeding track. The thirty-first driving component 191 drives the pusher 192 forward so that the outer cap corresponds to the arc hole 198. The twenty-seventh driving component 193 drives the two-end pressure rod 194 to move downward and press the outer cap into the arc hole 198 and press it into the two ends of the ceramic tube. The lower end face of the ceramic tube is close to the lower pad 195 of the outer cap. During the continuous downward pressure of the two-end pressure rod 194 on the ceramic tube, the assembly pressure value is measured by the two-end pressure sensor 123. When the pressure value reaches the preset value, the two-end outer cap is assembled in place and all components are reset.

[0117] In this embodiment, a heating rod is also provided on the side of the dual-end feeding track near the front end.

[0118] Reference Figure 7K, the finished product tensile testing mechanism 20 includes a twenty-eighth driving component 2001, a thirtieth driving component 2002, an upper tensile gripper 2003, a twenty-ninth driving component 2004, a lower tensile gripper 2005, and a discharge gripper 2006. The twenty-eighth driving component 2001 is an electric cylinder, the twenty-ninth driving component 2004 is a telescopic cylinder, and the thirtieth driving component 2002 is a gripper cylinder. The twenty-eighth driving component 2001 drives the thirtieth driving component 2002 to move vertically. The thirtieth driving component 2002 drives the upper tensile gripper 2003 to clamp or release the ceramic tube. The twenty-ninth driving component 2004 drives the discharge gripper 2006 to move closer to or further away from the lower tensile gripper 2005. The discharge gripper 2006 fits against the lower tensile gripper 2005 to form a tensile groove. The center line of the tensile groove is on the same straight line as the center line of the upper tensile gripper 2003.

[0119] After the ceramic tube enters this station, the 29th drive component 2004 drives the unloading clamp 2006 to approach the lower tension clamp 2005. The ceramic tube fits against the inner wall of the tension groove, and the lower end cap of the ceramic tube abuts against the lower end face of the lower tension clamp 2005 and the unloading clamp 2006. The 28th drive component 2001 drives the 30th drive component 2002 to descend. The 30th drive component 2002 drives the upper tension clamp 2003 to clamp the two ends of the ceramic tube. The 28th drive component 2001 drives the 30th drive component 2002 to move the upper tension clamp 2003 upward, so that the upper and lower outer caps of the ceramic tube are pulled at the same time. If the outer cap is not properly assembled, the 28th drive component 2001 will continue to move upward; otherwise, it is a good product.

[0120] Product power-on testing mechanism 2219 adopts the structure of the power-on testing mechanism in CN214489150U, which will not be described in detail here; resistance defect unloading mechanism 20 adopts the structure of the defective product unloading area in CN217061928U after product impedance testing, and unloads the resistance defective products, which will not be described in detail here; secondary defect unloading mechanism 21 adopts the structure of the defective product unloading area in CN217061928U to unload products with other defects besides resistance, which will not be described in detail here; good product unloading mechanism 2522 adopts the structure of the good product unloading area in CN217061928U, which will not be described in detail here.

[0121] In this embodiment, the upper end of the ceramic tube has two ends, and the lower end of the ceramic tube has one end.

[0122] The implementation principle of the automatic assembly machine for resistance welding of fuse wire in this application embodiment is as follows: the ceramic tube is transferred to different mechanisms, that is, to different processes, by the grippers 2 on the turntable 1, so as to carry out processing and inspection operations at each station. Through a highly automated production method, the complete process from raw material feeding to finished product inspection is realized. The various peripheral mechanisms work closely together to ensure product quality and production efficiency.

[0123] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic assembly machine for resistance welding of fuse wires, characterized in that: The system includes a turntable equipped with grippers for holding ceramic tubes and for rotating the ceramic tubes to different positions. The outer periphery of the turntable is sequentially arranged with: The ceramic tube feeding mechanism feeds the ceramic tube into the clamps; One-end inner cap pre-installation mechanism, used for the pre-installation of the inner cap at one end of the ceramic tube; One-end inner cap pressing mechanism, used for pressing and fixing the inner cap at one end of the ceramic tube; A ceramic tube flipping mechanism is used to flip the ceramic tube in the correct direction. The two-end inner cap pre-installation mechanism is used for the pre-installation of inner caps at both ends of the ceramic tube; The two-end inner cap pressing mechanism is used to press and fix the inner caps at both ends of the ceramic tube; The inner cap length detection mechanism is used to detect the length of the inner cap of the ceramic tube after installation. The wire threading and welding mechanism is used to thread wires onto a ceramic tube and weld one end of the wire. CCD vision inspection equipment is used to inspect whether wire threading and welding are qualified; An external cap assembly mechanism is used to assemble an external cap at one end of a ceramic tube. A semi-finished product length detection mechanism is used to detect the length of the ceramic tube after the outer cap is assembled at one end; Two-end wire bending mechanism, used for bending the wires at both ends of ceramic tubes; Two-end wire welding mechanism, used for welding the wires at both ends of the ceramic tube to the inner cap; The first sand-filling weighing mechanism is used to weigh the ceramic tube before sand filling. Sand filling mechanism, used to fill ceramic tubes with anti-arc extinguishing material; The second sand-filling weighing mechanism is used to weigh the ceramic tube after sand filling. The two-end cap assembly mechanism is used for installing the two-end caps on the ceramic tube; Finished product tensile testing mechanism, used to perform tensile tests on ceramic tubes; Finished product length inspection mechanism, used to inspect the length of finished ceramic tubes; Product power-on testing mechanism, first defective unloading mechanism, second defective unloading mechanism, and good product unloading mechanism.

2. The automatic fuse wire threading resistance welding assembly machine according to claim 1, characterized in that: The wire feeding and welding mechanism includes a wire feeding mechanism, a wire feeding mechanism, a tensioning mechanism, and a first welding mechanism. The wire feeding mechanism feeds the wire out and feeds it through the wire feeding mechanism. The wire feeding mechanism includes a wire feeding tube, which guides the wire into the ceramic tube and extends out of the other end of the ceramic tube. The tensioning mechanism stretches the wire extending out of the other end of the ceramic tube to one side and fits it against the inner cap end face of the ceramic tube.

3. The automatic fuse wire threading resistance welding assembly machine according to claim 2, characterized in that: The first welding mechanism includes a negative electrode welding assembly and a positive electrode welding assembly. The negative electrode welding assembly includes a spot-welded negative electrode welding piece and a first driving member. The first driving member drives the spot-welded negative electrode welding piece to cover the outer periphery of the inner cap of the ceramic tube. The positive electrode welding assembly includes a spot-welded positive electrode welding piece and a second driving member. The central axis of the wire-threading tube and the central axis of the spot-welded positive electrode welding piece are on the same straight line.

4. The automatic fuse wire threading resistance welding assembly machine according to claim 1, characterized in that: The CCD vision inspection mechanism includes a light source, a camera, and an eleventh driving component. The light source is located above the camera, and the eleventh driving component drives the light source to move.

5. The automatic fuse wire threading resistance welding assembly machine according to claim 1, characterized in that: The one-end outer cap assembly mechanism includes a one-end outer cap vibrating plate, a flat vibration track, and an outer cap track. The flat vibration track connects the one-end outer cap vibrating plate and the outer cap track. It also includes a pressure sensor, a pressing top rod, and a twenty-sixth driving component. The pressure sensor is located above the pressing top rod, and the twenty-sixth driving component drives the pressing top rod to move vertically.

6. The automatic fuse wire threading resistance welding assembly machine according to claim 1, characterized in that: The two-end wire bending mechanism includes a twelfth driving member, a bending lower block, a thirteenth driving member, a moving plate, a fourteenth driving member, a wire bending component, a fifteenth driving member, and a pressing rod. The twelfth driving member drives the bending lower block to move vertically, the thirteenth driving member drives the moving plate to move vertically, the fourteenth driving member and the wire bending component are mounted on the moving plate, and drive the wire bending component to move horizontally. The wire bending component has a bending groove, and the fifteenth driving member drives the pressing rod to enter or leave the bending groove.

7. The automatic fuse wire threading resistance welding assembly machine according to claim 1, characterized in that: The two-end wire welding mechanism includes a two-end positive electrode welding assembly and a two-end negative electrode welding assembly, each equipped with a spot welding power line. The two-end positive electrode welding assembly includes a sixteenth driving member and two-end positive electrode welding parts, and the two-end negative electrode welding assembly includes a seventeenth driving member and two-end negative electrode welding parts. The sixteenth driving member drives the two-end positive electrode welding parts to abut against the end face of the inner cap, and the seventeenth driving member drives the two-end negative electrode welding parts to cover the outer periphery of the inner cap. A circuit is formed between the two-end positive electrode welding parts and the two-end negative electrode welding parts.

8. The automatic fuse wire threading resistance welding assembly machine according to claim 1, characterized in that: The two-end outer cap assembly mechanism includes a thirty-first driving component, a pusher clamp, a twenty-seventh driving component, two-end pressure rods, an outer cap under pad, two-end pressure sensors, two-end feeding tracks, and an outer cap guide block. The thirty-first driving component drives the pusher clamp to move. The outer cap guide block has a through arc hole. The pusher clamp is fitted above the outer cap guide block and has an outer cap receiving cavity. The two-end feeding tracks are connected to the outer cap receiving cavity. The outer cap under pad is placed on the two-end pressure sensors and faces the two-end pressure rods. The twenty-seventh driving component drives the two-end pressure rods to move into or out of the arc hole and closer to or further away from the outer cap under pad.

9. The automatic fuse wire threading resistance welding assembly machine according to claim 1, characterized in that: The finished product tensile testing mechanism includes a 28th driving component, a 30th driving component, an upper tensile gripper, a 29th driving component, a lower tensile gripper, and a discharge gripper. The 28th driving component drives the 30th driving component to move vertically. The 30th driving component drives the upper tensile gripper to clamp or release the ceramic tube. The 29th driving component drives the discharge gripper to move closer to or further away from the lower tensile gripper. The discharge gripper fits against the lower tensile gripper to form a tensile groove. The center line of the tensile groove is on the same straight line as the center line of the upper tensile gripper.

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