Automatic assembling machine for fuse with plastic shell

Abstract

The invention is suitable for the technical field of fuse production, and provides a plastic shell fuse automatic assembling machine, which comprises a case and a turntable mechanism arranged on the case, an upper inner core mechanism, a correction detection mechanism, an upper lead mechanism, a lead detection mechanism, a flattening mechanism, an upper soldering flux mechanism, a tin pick-up mechanism, a bending mechanism, an upper fuse mechanism, a butt-welding mechanism, a lead pulling mechanism, a resistor measuring and lower defective product discharging mechanism, an upper shell mechanism and an assembly shell and lower non-defective product mechanism are further arranged around the turntable mechanism on the case; the fuse production efficiency can be effectively improved, and the purposes of deeper automation, more concise usability and cost saving are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of fuse production, in particular to an automatic assembly machine for plastic shell fuses. Background Art

[0002] At present, in the equipment for producing plastic case fuses, the lead length is too long, and the exposed length is more than 17mm, which cannot be shortened, and the production cost is high. In the subsequent process, it is also necessary to cut off part of the lead pins before using them, so the excessively long pins will cause material waste.

[0003] Therefore, in view of the above situation, it is urgent to provide an automatic assembly machine for plastic case fuses to overcome the shortcomings in current practical applications. Summary of the invention

[0004] The object of the present invention is to provide an automatic assembly machine for plastic case fuses, aiming to solve the problems in the above-mentioned background technology.

[0005] The present invention is implemented as follows: an automatic assembly machine for plastic shell fuses comprises a chassis and a turntable mechanism arranged on the chassis, wherein the chassis is also provided with an upper inner core mechanism, a correction detection mechanism, an upper lead mechanism, a lead detection mechanism, a flattening mechanism, an upper flux mechanism, a tinning mechanism, a bending mechanism, an upper fuse mechanism, a touch welding mechanism, a lead pulling mechanism, a resistance measuring and lower defective product discharging mechanism, an upper shell mechanism, and a shell assembling and lower good product mechanism around the turntable mechanism.

[0006] As a further solution of the present invention: the turntable mechanism includes a main turntable, a main clamp, an adjusting eccentric shaft and a cushion block, the cushion block is arranged in the chassis, and a DD motor is arranged on the cushion block, the main turntable is fixed on the DD motor by a positioning pin, the main clamp is installed upside down on the bottom of the main turntable, the main clamps on both sides pass through the pin holes on the main turntable, are held open by two springs, and the eccentric shaft is adjusted to make the offset angles of the main clamps consistent; the upper inner core mechanism and the correction and detection mechanism include a vibration plate and a mounting frame 1 arranged in the chassis, the mounting frame 1 is also provided with an opening cylinder, a feeding cylinder, a vertical cylinder, a correction cylinder and a photoelectric detection switch for controlling the main clamp switch, and also includes a suction nozzle.

[0007] As a further solution of the present invention: the upper lead-in mechanism includes a mounting frame 2 arranged in the chassis, and the mounting frame 2 is provided with a guide wheel, a wire passing wheel, a roller plate and a needle tube 1 for conveying the copper wire, and a wire passing block, a wire clamping block, a wire nozzle and a cutting block for cutting off excess copper wire are also arranged above the mounting frame 2; the lead-in detection mechanism includes two optical fiber amplifiers for sensing the presence or absence of the lead-in.

[0008] As a further solution of the present invention: the flattening mechanism includes an installation frame 1 arranged in the chassis and a flattening fixed mold arranged on the installation frame 1, a pressure block 1 is slidably installed on the top of the installation frame 1, and a flattening movable mold is arranged on the pressure block 1, a flattening cylinder for pushing the pressure block 1 to move is also arranged in the installation frame 1, and the flattening cylinder and the pressure block 1 are connected by a rotating joint 1; the upper flux mechanism includes a spoon and a flux dipping cylinder for driving the spoon to move.

[0009] As a further solution of the present invention: the tinning mechanism includes a tin shaft and a mounting frame three arranged in the chassis, the tin shaft is also provided with a tightening wheel, the mounting frame three is also provided with a needle tube two, a wire pressing wheel and a tin pool, and the mounting frame three is also provided with a tinning cylinder for driving the tin pool to move, and the mounting frame three is also provided with a tin feeding wire cylinder.

[0010] As a further solution of the present invention: the bending mechanism includes an installation frame 2 arranged in the chassis, two groups of pressure blocks 2 are slidably installed on the top of the installation frame 2, and bending molds are provided on the pressure blocks 2. A bending cylinder for driving the pressure blocks 2 to move is also provided in the installation frame 2, and the bending cylinder and the pressure blocks 2 are connected via a rotating joint 2.

[0011] As a further solution of the present invention: the upper fuse mechanism includes a fuse placing shaft arranged in the chassis and a wire wheel and a needle tube for conveying the fuse, and also includes a fuse cutting mechanism, a fuse clamping mechanism, a fuse feeding mechanism and a wire wrapping mechanism for processing the fuse, and a turning cylinder is also arranged in the chassis.

[0012] As a further solution of the present invention: the butt welding mechanism includes a mounting frame four and a butt welding ejector pin arranged in the chassis, two groups of pressure blocks three are slidably mounted on the mounting frame four, each group of pressure blocks three is provided with a welding block, the butt welding ejector pin is installed on the welding block, and the mounting frame four is also provided with a cylinder for driving the pressure block three to move.

[0013] As a further solution of the present invention: the lead wire pulling mechanism includes a wire clamping cylinder, a wire clamping clamp, a material pressing block and a lead wire pulling cylinder arranged in the chassis, the telescopic end of the wire clamping cylinder is provided with a pushing block for opening the wire clamping clamp, and the material pressing block is used to fix the inner core; the resistance measuring and defective product discharging mechanism includes a defective product unloading cylinder, a defective product box, a test clamp, a resistance measuring block and a test cylinder for driving the test clamp to work, the test clamp is installed at the bottom of the resistance measuring block, and four groups of test clamps are provided.

[0014] As a further solution of the present invention: the upper shell mechanism includes a shell vibration disk and a mounting table arranged in the chassis, and a small turntable and a stepper motor for driving the small turntable to rotate are arranged on the mounting table, and a unloading track is also arranged between the shell vibration disk and the small turntable, and an upper cylinder 1 for pushing the shell onto the small turntable and an upper cylinder 2 for pushing the shell out of the small turntable are also arranged at the bottom of the mounting table, and a sand filling mechanism is also arranged on the mounting table; the assembly shell and lower good product mechanism includes an assembly cylinder, a connecting slider, an assembly block, a good product unloading cylinder and a unloading pipe, and the unloading pipe is provided with a shell supporting plate, and the assembly cylinder is connected to the assembly block through a connecting slider.

[0015] Compared with the prior art, the invention has the following beneficial effects: the automatic assembly machine for plastic shell fuses is highly integrated in terms of automated production, has the advantages of high repeat positioning accuracy, simple structure, small size, greatly reduced cost of wearing parts, convenient maintenance, and low maintenance cost. After trial production verification, the yield rate reached 99%, effectively improving production efficiency, saving a lot of labor, and improving product quality; The main clamp is installed upside down at the bottom of the turntable, so that the length of a single lead wire can be shortened by 2mm, which is convenient for producing short-leg products. The leg length is 14-16mm, which can save copper material loss. Each product can save 10-15% of copper wire loss, effectively avoiding the problem that existing equipment cannot produce short-leg products; The present invention can effectively improve the production efficiency of fuses, achieve the purpose of deeper automation, simpler usability and cost saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention.

[0017] Figure 2 It is a structural schematic diagram of the turntable mechanism in the present invention.

[0018] Figure 3 It is a structural schematic diagram of the main clamp in the present invention.

[0019] Figure 4 It is a schematic structural diagram of the upper inner core mechanism and the correction and detection mechanism in the present invention.

[0020] Figure 5 It is a structural schematic diagram of the upper lead mechanism in the present invention.

[0021] Figure 6 It is a structural schematic diagram of the lead detection mechanism in the present invention.

[0022] Figure 7 It is a structural schematic diagram of the flattening mechanism in the present invention.

[0023] Figure 8It is a structural schematic diagram of the flux application mechanism in the present invention.

[0024] Fig. 9 It is a structural schematic diagram of the tinning mechanism in the present invention.

[0025] Fig.10 It is a structural schematic diagram of the bending mechanism in the present invention.

[0026] Fig.11 It is a structural schematic diagram of the upper fuse mechanism in the present invention.

[0027] Fig.12 It is a structural schematic diagram of the butt welding mechanism in the present invention.

[0028] Fig.13 It is a structural schematic diagram of the lead wire pulling mechanism in the present invention.

[0029] Fig.14 It is a structural schematic diagram of the resistance measuring and defective product discharging mechanism in the present invention.

[0030] Fig.15 It is a structural schematic diagram of the upper shell mechanism in the present invention.

[0031] Fig.16 It is a structural schematic diagram of assembling the housing and the lower good product mechanism in the present invention.

[0032] Fig.17 This is a schematic diagram of a plastic case fuse product.

[0033] In the attached figure: 1-resistance measurement and lower defective product discharge mechanism, 2-lead pulling mechanism, 3-welding mechanism, 4-upper fuse mechanism, 5-bending mechanism, 6-tinning mechanism, 7-upper flux mechanism, 8-flattening mechanism, 9-lead detection mechanism, 10-upper lead mechanism, 11-correction detection mechanism, 12-upper inner core mechanism, 13-assembly shell and lower good product mechanism, 14-upper shell mechanism, 15-main turntable, 16-main clamp, 17-pad, 18-DD motor, 19-cover plate, 20-eccentric shaft, 21-pin hole, 22-vibration plate, 23-opening cylinder, 24-feeding cylinder, 25-vertical cylinder, 26-correction cylinder, 27-photoelectric detection switch, 28-sucking nozzle, 29-clamping block, 30-wire nozzle, 31-guide wheel, 32-cutting block, 33-thread passing block, 34-needle tube 1, 35-roller plate, 36-thread passing wheel, 37-optical fiber amplifier, 38-flattening cylinder, 39-rotating joint 1, 40-rotating joint 2, 41-pressing block 1, 42-flattening movable mold, 43-flattening fixed mold, 44-flux immersion cylinder, 45- Spoon, 46-tin shaft, 47-tightening wheel, 48-pressing wheel, 49-needle tube 2, 50-tin pool, 51-tin wire feeding cylinder, 52-tinning cylinder, 53-bending cylinder, 54-pressing block 2, 55-bending mold, 56-lead guide block, 57-fuse shaft, 58-wire wheel, 59-needle tube 3, 60-fuse cutting mechanism, 61-fuse clamping mechanism, 62-fuse feeding mechanism, 63-wire wrapping mechanism, 64-flipping cylinder, 65-pressing block 3, 66-welding block, 67-butt welding ejector pin, 68-cylinder, 69 -Wire clamping cylinder, 70-push block, 71-wire clamp, 72-pressing block, 73-lead pulling cylinder, 74-test clamp, 75-resistance measuring block, 76-test cylinder, 77-defective product unloading cylinder, 78-defective product box, 79-shell vibration plate, 80-unloading track, 81-upper cylinder 1, 82-small turntable, 83-stepping motor, 84-sand filling mechanism, 85-assembly cylinder, 86-slider, 87-cam follower, 88-assembly block, 89-shell support plate, 90-unloading pipe, 91-good product unloading cylinder. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0035] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0036] See also Figure 1-Figure 17An embodiment of the present invention provides an automatic assembly machine for plastic shell fuses, the automatic assembly machine for plastic shell fuses comprising a chassis and a turntable mechanism arranged on the chassis, and the chassis is also provided with an upper inner core mechanism 12, a correction detection mechanism 11, an upper lead mechanism 10, a lead detection mechanism 9, a flattening mechanism 8, an upper flux mechanism 7, a tinning mechanism 6, a bending mechanism 5, an upper fuse mechanism 4, a touch welding mechanism 3, a lead pulling mechanism 2, a resistance measuring and lower defective product discharging mechanism 1, an upper shell mechanism 14 and an assembling shell and lower good product mechanism 13 around the turntable mechanism.

[0037] In the embodiment of the present invention, the automatic assembly machine for plastic shell fuses is highly integrated in terms of automated production, and has the advantages of high repeat positioning accuracy, simple structure, small size, greatly reduced cost of wearing parts, convenient repair, and low maintenance cost. After trial production verification, the yield rate reached 99%, effectively improving production efficiency, saving a lot of labor, and improving product quality. The present invention can effectively improve the production efficiency of fuses, achieve the purpose of deeper automation, simpler usability, and cost saving.

[0038] In one embodiment of the present invention, see Figure 1-Figure 16 The turntable mechanism includes a main turntable 15, a main clamp 16, an adjustable eccentric shaft 20 and a cushion block 17. The cushion block 17 is arranged in the chassis, and a DD motor 18 is arranged on the cushion block 17. The main turntable 15 is fixed on the DD motor 18 by a positioning pin. The main clamp 16 is installed upside down at the bottom of the main turntable 15 (so that the length of a single lead wire can be shortened by 2mm). The main clamps 16 on both sides pass through the pin holes 21 on the main turntable 15 and are held open by two springs. The eccentric shaft 20 is adjusted to make the offset angle of the main clamp 16 consistent, so as to facilitate the lead wire. The bottom is covered by a cover plate to cover the spring and a cover sheet 19 to prevent it from falling off. The upper inner core mechanism 12 and the correction detection mechanism 11 include a vibration plate 22 and a mounting frame 1 arranged in the chassis, and the mounting frame 1 is also provided with an opening cylinder 23 for controlling the switch of the main clamp 16, a feeding cylinder 24, a vertical cylinder 25, a correction cylinder 26 and a photoelectric detection switch 27, and also includes a suction nozzle 28; The upper lead-in mechanism 10 includes a mounting frame 2 arranged in the chassis, and the mounting frame 2 is provided with a guide wheel 31 for conveying copper wire, a wire passing wheel 36, a roller disc 35 and a needle tube 1 34, and a wire passing block 33, a wire clamping block 29, a wire nozzle 30 and a wire cutting block 32 for cutting off excess copper wire are also provided above the mounting frame 2; The lead detection mechanism 9 includes two optical fiber amplifiers 37 for sensing the presence or absence of leads; The flattening mechanism 8 includes a mounting frame 1 arranged in the chassis and a flattening fixed die 43 arranged on the mounting frame 1, a pressing block 1 41 is slidably mounted on the top of the mounting frame 1, and a flattening movable die 42 is arranged on the pressing block 1 41, and a flattening cylinder 38 for pushing the pressing block 1 41 to move is also arranged in the mounting frame 1, and the flattening cylinder 38 and the pressing block 1 41 are connected via a rotating joint 1 39; The fluxing mechanism 7 includes a spoon 45 and a flux-immersing cylinder 44 for driving the spoon 45 to move; The tinning mechanism 6 includes a tin shaft 46 and a mounting frame 3 arranged in the chassis, the tin shaft 46 is also provided with a tightening wheel 47, the mounting frame 3 is also provided with a needle tube 2 49, a wire pressing wheel 48 and a tin pool 50, and the mounting frame 3 is also provided with a tinning cylinder 52 for driving the tin pool 50 to move, and the mounting frame 3 is also provided with a tin wire feeding cylinder 51; The bending mechanism 5 includes a mounting frame 2 arranged in the chassis, two sets of pressing blocks 54 are slidably mounted on the top of the mounting frame 2, and the pressing blocks 54 are each provided with a bending die 55, and a bending cylinder 53 for driving the pressing blocks 54 to move is also arranged in the mounting frame 2, and the bending cylinder 53 is connected to the pressing blocks 54 via a rotating joint 2 40; The upper fuse mechanism 4 includes a fuse placing shaft 57 arranged in the chassis, a wire wheel 58 and a needle tube 59 for conveying the fuse, and also includes a fuse cutting mechanism 60, a fuse clamping mechanism 61, a fuse feeding mechanism 62 and a wire wrapping mechanism 63 for processing the fuse, and a turning cylinder 64 is also arranged in the chassis; The butt welding mechanism 3 includes a mounting frame 4 and a butt welding ejector pin 67 arranged in the chassis, two groups of pressing blocks 3 65 are slidably mounted on the mounting frame 4, each group of pressing blocks 3 65 is provided with a welding block 66, and the butt welding ejector pin 67 is installed on the welding block 66, and the mounting frame 4 is also provided with a cylinder 68 for driving the pressing block 3 65 to move; The wire pulling mechanism 2 includes a wire clamping cylinder 69, a wire clamping clamp 71, a material pressing block 72 and a wire pulling cylinder 73 arranged in the chassis. The telescopic end of the wire clamping cylinder 69 is provided with a push block 70 for opening the wire clamping clamp 71, and the material pressing block 72 is used to fix the inner core; The resistance measuring and defective product discharging mechanism 1 comprises a defective product discharging cylinder 77, a defective product box 78, a test clamp 74, a resistance measuring block 75, and a test cylinder 76 for driving the test clamp 74 to work, the test clamp 74 is installed at the bottom of the resistance measuring block 75, and the test clamp 74 is provided with four groups; The upper shell mechanism 14 includes a shell vibration plate 79 and a mounting platform arranged in the chassis, and a small turntable 82 and a stepping motor 83 for driving the small turntable 82 to rotate are arranged on the mounting platform, and a material unloading track 80 is also arranged between the shell vibration plate 79 and the small turntable 82, and an upper cylinder 1 81 for pushing the shell onto the small turntable 82 and an upper cylinder 2 for pushing the shell out of the small turntable 82 are also arranged at the bottom of the mounting platform, and a sand filling mechanism 84 is also arranged on the mounting platform; The assembly shell and lower good product mechanism 13 includes an assembly cylinder 85, a connecting slider 86, an assembly block 88, a good product unloading cylinder 91 and a unloading pipe 90, wherein the unloading pipe 90 is provided with a shell supporting plate 89, and the assembly cylinder 85 is connected to the assembly block 88 via the connecting slider 86; wherein the assembly shell and lower good product mechanism 13 also includes a cam follower 87.

[0039] In this embodiment, the main turntable 15 is fixed on the DD motor 18 by the positioning pin, and the main clamp 16 is installed upside down on the bottom of the turntable (so that the length of a single lead wire can be shortened by 2mm). The main clamps 16 on both sides pass through the pin holes 21 and are held open by two springs. The eccentric shaft 20 is adjusted to make the offset angle of the main clamps 16 consistent, so as to facilitate the lead wire. The bottom is covered by a cover plate to cover the spring and the main clamp cover piece 19 to prevent it from falling; First, the vibration plate 22 feeds the inner core into the feeding mechanism, the clamp opening cylinder 23 drives the fisheye joint to move forward horizontally, the main clamp 16 is opened, the feeding cylinder 24 drives the fisheye joint to move forward, the inner core enters under the suction nozzle 28, the vacuum absorbs the inner core and the vertical cylinder 25 drives the suction nozzle 28 downward to send the inner core to the main turntable 15, and the main clamp 16 is closed; The main turntable 15 rotates one grid, and the correction cylinder 26 is actuated to correct the product and detect whether there is any product or whether the product is reversed; the main turntable 15 moves to the lower side of the upper lead-in mechanism 10, and the two copper wires of the corresponding specifications of the lead-in mechanism are respectively passed through the guide mechanism on both sides, and pass through the guide wheel 31, the wire wheel 36, the roller disc 35 and the needle tube 34 in turn, and at the same time, the verticality of the wire when it is out needs to be ensured; then click the loose wire button on the wire threading screen on the screen, and turn the roller disc 35 by hand to continue feeding the wire, and pass through the wire block 33, the clamping block 29, and the wire nozzle 30 in turn to ensure that the wire passes through the wire nozzle 30, and then click the lower loose wire button; finally, click the wire cutting button on the screen to cut off the excess copper wire, and the threading is completed; After the lead wire is threaded, it enters the detection mechanism, where two optical fiber amplifiers 37 sense the presence of the lead wire; When entering the flattening part, a connecting rod type clamping method is adopted, and the flattening cylinder 38 extends to drive the rotating joint 39 to move the pressing block 41 forward, that is, the flattening movable die 42 is fixed on the pressing block 41, and the lead wire is squeezed between the flattening movable die 42 and the flattening fixed die 43 for flattening; Then the flux-dipping cylinder 44 moves upward, and the flux-dipping spoon 45 moves upward to dip into the end of the lead wire; Then enter the tinning mechanism 6, put the tin wire of corresponding specifications on the tin shaft 46, and tighten the tightening wheel 47, then take out one end of the tin wire and pass it through the wire pressing wheel 48 and the second needle tube 49 in sequence until it reaches the tin pool 50; the tinning cylinder 52 moves upward, and the tinned tin tank moves upward to dip the end of the lead wire; Then, we come to the bending station to bend the bottom end of the lead wire. The connecting rod clamping method is adopted. The bending cylinders 53 are extended at the same time, driving the rotating joint 40 to move the pressing block 54 to the middle. The bending die 55 and the lead wire guiding block 56 bend the lead wire. Then install the fuse, cut a small section of the wound fuse and put it into the newly bent lead wire, and wrap it. Steps for threading the fuse: Put the fuse of the corresponding specification on the fuse shaft, tighten the tightening wheel, press the fuse reel, and then clamp the fuse with tweezers, pass it through the porcelain eye, needle tube three 59, and guide the fuse shaft in turn, and tighten the plum blossom button at the same time, so that the rubber wheel presses the fuse, and finally click the wire cutting button on the screen to cut off the excess fuse; The butt welding assembly adopts the inverter DC resistance welding method, and the left and right sides are welded successively to weld the fuse and the lead together. Four butt welding ejectors 67 are respectively installed on the welding block 66, and are pressed by the pressure block 3 65. The front and rear cylinders 68 on the left side work together to press and weld one end of the wrapped fuse, and the same is true for the right side; Pull the lead wire to the bottom of the inner core, that is, the clamping cylinder 69 connects with the push block 70 to move downward, and the clamping clamp 71 is opened, so that the lead wire is clamped, the bottom pressing block 72 fixes the inner core, and the lead wire pulling cylinder 73 connects with the slide block to move upward, and the upper mechanism clamps the lead wire upward and pulls it upward; Resistance measurement and defective product removal: Resistance measurement is performed in two groups of four-wire systems. Four test clips 74 clamp the lead wires for testing. The test clips 74 are installed at the bottom of the resistance measuring block 75. The test cylinder 76 moves. The test clips 74 clamp to the middle and contact the lead wires for testing. The defective product removal cylinder 77 moves downward to put the defective products into the defective product box 78. Upper shell: adopts stepping reducer + small turntable 82 structure. First, the shell is sent to the unloading track 80 through the shell vibration plate 79, and the shell is pushed onto the small turntable 82 by the upper cylinder 1 81. The turntable rotates, sand is filled, and then the sand volume is detected by one grid (the sand filling function can be turned off according to production requirements). Finally, the shell is pushed out of the small turntable 82 by the upper cylinder 2 and buckled on the turntable main clamp 16; Assembling and unloading good products: The assembly cylinder 85 connects with the slider 86 to drive the assembly block 88 to move downward, buckles the semi-finished product onto the shell, and the good product unloading cylinder 91 connects with the flexible joint to drive the head pin to move downward, and the good product is driven into the good product unloading pipe 90 and falls into the good product box. At this point, all the processes of the new plastic shell fuse are completed.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "slide", "rotate", "fix", "have" and the like should be understood in a broad sense, for example, it can be a welding connection, a bolt connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic assembly machine for plastic case fuses, comprising a chassis and a turntable mechanism disposed on the chassis, characterized in that: The chassis is also provided with an upper inner core mechanism, a correction detection mechanism, an upper lead mechanism, a lead detection mechanism, a flattening mechanism, an upper flux mechanism, a tinning mechanism, a bending mechanism, an upper fuse mechanism, a touch welding mechanism, a lead pulling mechanism, a resistance measuring and lower defective product discharging mechanism, an upper shell mechanism, and an assembling shell and lower good product mechanism around the turntable mechanism; the lead pulling mechanism includes a wire clamping cylinder, a wire clamping clamp, a pressing block and a lead pulling cylinder arranged in the chassis, the telescopic end of the wire clamping cylinder is provided with a pushing block for opening the wire clamping clamp, and the pressing block is used to fix the inner core; the resistance measuring and lower defective product discharging mechanism includes a defective product discharging cylinder, a defective product box, a test clamp, a resistance measuring block and a driving mechanism for driving the test clamp to work. The test cylinder is installed at the bottom of the resistance measuring block, and four groups of test clamps are provided; the upper shell mechanism includes a shell vibration disk and a mounting platform arranged in the chassis, and a small turntable and a stepping motor for driving the small turntable to rotate are arranged on the mounting platform, and a feeding track is also arranged between the shell vibration disk and the small turntable, and an upper cylinder 1 for pushing the shell onto the small turntable and an upper cylinder 2 for pushing the shell out of the small turntable are also arranged at the bottom of the mounting platform, and a sand filling mechanism is also arranged on the mounting platform; the assembly shell and the lower good product mechanism include an assembly cylinder, a connecting slider, an assembly block, a good product feeding cylinder and a feeding pipe, and a shell supporting plate is arranged on the feeding pipe, and the assembly cylinder is connected to the assembly block through a connecting slider.

2. The automatic assembly machine for plastic case fuses according to claim 1, characterized in that: The turntable mechanism includes a main turntable, a main clamp, an adjustable eccentric shaft and a cushion block, the cushion block is arranged in the chassis, and a DD motor is arranged on the cushion block, the main turntable is fixed on the DD motor by a positioning pin, the main clamp is installed upside down on the bottom of the main turntable, the main clamps on both sides pass through the pin holes on the main turntable and are held open by two springs, and the eccentric shaft is adjusted to make the offset angles of the main clamps consistent; the upper inner core mechanism and the correction and detection mechanism include a vibration plate and a mounting frame 1 arranged in the chassis, the mounting frame 1 is also provided with a clamping cylinder, a feeding cylinder, a vertical cylinder, a correction cylinder and a photoelectric detection switch for controlling the main clamp switch, and also includes a suction nozzle.

3. The automatic assembly machine for plastic case fuses according to claim 1 or 2, characterized in that: The upper lead-in mechanism includes a mounting frame 2 arranged in the chassis, and the mounting frame 2 is provided with a guide wheel, a wire passing wheel, a roller disc and a needle tube 1 for conveying copper wire. A wire passing block, a wire clamping block, a wire nozzle and a cutting block for cutting off excess copper wire are also arranged above the mounting frame 2; the lead-in detection mechanism includes two optical fiber amplifiers for sensing the presence or absence of leads.

4. The automatic assembly machine for plastic case fuses according to claim 1, characterized in that: The flattening mechanism includes an installation frame 1 arranged in the chassis and a flattening fixed mold arranged on the installation frame 1, a pressure block 1 is slidably installed on the top of the installation frame 1, and a flattening movable mold is arranged on the pressure block 1, and a flattening cylinder for pushing the pressure block 1 to move is also arranged in the installation frame 1, and the flattening cylinder and the pressure block 1 are connected by a rotating joint 1; the upper flux mechanism includes a spoon and a flux dipping cylinder for driving the spoon to move.

5. The automatic assembly machine for plastic case fuses according to claim 1, characterized in that: The tinning mechanism includes a tin shaft and a mounting frame three arranged in the chassis, the tin shaft is also provided with a tightening wheel, the mounting frame three is also provided with a needle tube two, a wire pressing wheel and a tin pool, and the mounting frame three is also provided with a tinning cylinder for driving the tin pool to move, and the mounting frame three is also provided with a tin feeding wire cylinder.

6. The automatic assembly machine for plastic case fuses according to claim 1 or 5, characterized in that: The bending mechanism includes an installation frame 2 arranged in the chassis, two groups of pressure blocks 2 are slidably installed on the top of the installation frame 2, and the pressure blocks 2 are each provided with a bending mold. A bending cylinder for driving the pressure blocks 2 to move is also provided in the installation frame 2, and the bending cylinder is connected to the pressure blocks 2 via a rotating joint 2.

7. The automatic assembly machine for plastic case fuses according to claim 1, characterized in that: The upper fuse mechanism includes a fuse placing shaft arranged in the chassis, a wire wheel and a needle tube for conveying the fuse, a fuse cutting mechanism, a fuse clamping mechanism, a fuse feeding mechanism and a wire wrapping mechanism for processing the fuse, and a turning cylinder is also arranged in the chassis.

8. The automatic assembly machine for plastic case fuses according to claim 1, characterized in that: The butt welding mechanism includes a mounting frame four and a butt welding ejector pin arranged in the chassis, two groups of pressure blocks three are slidably mounted on the mounting frame four, each group of pressure blocks three is provided with a welding block, the butt welding ejector pin is installed on the welding block, and a cylinder for driving the pressure blocks three to move is also arranged on the mounting frame four.

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