Double-terminal chip resistor automatic assembly machine

Abstract

The present invention discloses a double-terminal chip resistor automatic assembly machine, which includes a device body, a feeding and granule-detaching mechanism, a material-sucking and transferring mechanism, a belt-feeding mechanism, a terminal punching mechanism, a terminal transferring mechanism, an assembly positioning mechanism and a discharging mechanism arranged on the device body. The ceramic substrate is automatically fed and split by the feeding and granule-detaching mechanism to obtain resistor chips. At the same time, a set of terminals are obtained by automatic feeding and punching in cooperation with the belt-feeding mechanism and the terminal punching mechanism. Then, the resistor chips and the terminals are transferred to the pin insertion station of the assembly positioning mechanism by the material-sucking and transferring mechanism and the terminal transferring mechanism for automatic assembly. The automatic feeding, processing and assembly of the resistor chips and the terminals in the double-terminal chip resistor are realized, and the structure is compact and the production efficiency is high.

Description

Technical Field

[0001] The present invention relates to the technical field of chip resistor manufacturing, and particularly to an automatic assembly machine for two-terminal chip resistors. Background Art

[0002] Chip components (SMC and SMD) are new types of tiny components without leads or short leads, and are micro-components widely used in contemporary electronic products. They are suitable for installation on printed circuit boards without through holes and are special components for SMT. SMT is the abbreviation of surface mount technology. Compared with ordinary components, chip components can be directly installed on printed circuit boards, and all solder joints are on one plane.

[0003] Chip components not only have different installation methods on the circuit board, but also have completely different manufacturing processes from ordinary components. For example, chip resistors generally consist of the following materials: a substrate (ceramic substrate), resistor paste (R paste), back conduction material, front conduction material, and side conduction material (Ag paste), primary protection glass G1, secondary protection glass G2, and Mark marking material; a resistor chip is formed through the above materials. Usually, chip components are directly installed on printed circuit boards in a surface mount manner and cannot be installed on perforated printed circuit boards; or some high-power chip components are directly installed on printed circuit boards, which is not conducive to achieving mutual isolation between components and between components and circuits, and is prone to interference. Therefore, it is necessary to develop some chip components with the characteristics of chip components but that can be vertically installed, such as chip resistors with terminals. The process of the surface mount resistor with terminals is as follows: First, print electrodes, perform primary sintering, print resistor circuits, perform secondary sintering, and print a protective glass film on a pre-scored ceramic substrate in sequence, and then split the sheet to obtain a resistor chip; then shape the terminals, combine the terminals with the resistor chip made through the chip component process, and snap the resistor chip into the open end of the above-shaped terminals to form an assembly, so that the horizontally extending parts on both sides of the terminals are attached to the upper and lower surfaces of the resistor chip, and weld the terminals and the resistor chip to weld the terminals to the upper and lower surfaces of the resistor chip to form a joined body; then perform processes such as insulation encapsulation, curing the insulating layer, plastic shell molding, electrical testing, marking, and trimming the leads to obtain qualified surface mount resistor products.

[0004] During production and manufacturing, the terminals can be automatically batch-produced by stamping, blanking, etc., and the resistor chips have also achieved automatic printing production. Then, the electrodes on the terminals and the resistor chips are fixed and welded together manually. Since both the resistor chips and the terminals are very small in size, manual feeding, positioning, and clamping are very inconvenient, thus restricting the production efficiency. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a double-terminal chip resistor automatic assembly machine, which can realize the automatic feeding, assembly and discharging of resistor chips and terminals, operate automatically, and has high production efficiency.

[0006] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0007] A double-terminal chip resistor automatic assembly machine includes an equipment body, a feeding and granule-detaching mechanism, a material-sucking and transferring mechanism, a belt-feeding mechanism, a terminal punching mechanism, a terminal transferring mechanism, an assembly positioning mechanism and a discharging mechanism arranged on the equipment body. The feeding and granule-detaching mechanism splits ceramic substrates into resistor chips. The material-sucking and transferring mechanism places the resistor chips from one side to the pin positions of the assembly positioning mechanism. The terminal transferring mechanism is arranged corresponding to the front end of the pin positions. Belt-feeding mechanisms are respectively arranged on both sides of the terminal transferring mechanism. The terminal strip on the terminal pay-off reel is respectively transferred from both sides to between the terminal transferring mechanism and the pin positions, and is cut by the terminal punching mechanism to form two terminals. The terminal transferring mechanism assembles the two terminals to the resistor chips at the pin positions. The discharging mechanism removes and discharges the resistor chips at the pin positions from the other side.

[0008] Specifically, the equipment body includes a main frame and a table board. Terminal pay-off reels are respectively arranged on both sides of the main frame. The terminal strip passes through a number of feeding guide wheels from the terminal pay-off reels and enters the belt-feeding mechanism on the table board, is cut by the terminal punching mechanism between the two belt-feeding mechanisms to form two terminals, and the two terminals are pushed by the terminal transferring mechanism to the pin positions.

[0009] Further, the feeding and granule separating mechanism includes a feeding support, a conveying seat plate arranged on the feeding support, and a feeding driving motor. A conveyor belt assembly is arranged on the conveying seat plate, and the feeding driving motor is connected to and drives the conveyor belt assembly through a feeding transmission group. Along the conveying direction of the conveyor belt assembly, a granule separating connection seat is arranged at the end of the conveying seat plate, and a granule separating swing block is installed in the granule separating connection seat through a swing shaft. A swing seat plate is connected below the granule separating swing block, and a granule separating movable block is arranged on the swing seat plate. A limiting and pressing groove is arranged on the granule separating connection seat, a granule separating working position groove communicated with and corresponding to the limiting and pressing groove is arranged on the granule separating swing block, a movable pressing block corresponding to the granule separating working position groove is arranged on the granule separating movable block, and a granule separating return spring is arranged between the granule separating movable block and the granule separating connection seat. A push block cylinder is used to make the movable pressing block combine with or separate from the granule separating working position groove. The ceramic substrate enters the limiting and pressing groove from the conveyor belt assembly and reaches the granule separating working position groove, and a granule separating pressing swing arm is used to fix the ceramic substrate in the limiting and pressing groove. The swing seat plate drives the granule separating swing block to swing downward by hitting through a swing cylinder, and the ceramic substrate cracks along the scratch part to form a resistor sheet.

[0010] Further, the material suction and transfer mechanism includes a sleeve seat, a sheet feeding rotating shaft arranged in the sleeve seat, a material taking cylinder arranged at the upper end of the sheet feeding rotating shaft, a material taking suction nozzle arranged at the working end of the material taking cylinder, and the lower end of the sheet feeding rotating shaft is connected to a rotary cylinder through a rotary connecting block. A rotary limiting ring is arranged at the upper end of the sleeve seat, and a rotary limiting stop block is arranged on the rotary limiting ring, so that the material taking suction nozzle moves between the granule separating working position groove and the pin inserting working position.

[0011] Further, the belt feeding mechanism includes a belt feeding support and a belt feeding adjusting plate arranged on the belt feeding support. A belt feeding adjusting block is driven on the belt feeding adjusting plate through a belt feeding sliding table cylinder. A belt feeding feeding ratchet is hinged on the belt feeding adjusting block. A belt feeding bottom groove plate is arranged below the belt feeding feeding ratchet. The belt feeding bottom groove plate is arranged on a punching base. The belt feeding feeding ratchet acts on the tape holes on the terminal tape, so that the terminal tape is transferred towards the middle of the two punching bases in the belt feeding groove of the belt feeding bottom groove plate. Along the transfer direction of the terminal tape, a tape feeding outlet block and a punching lower die are arranged at the end of the punching base. The rear side of the terminal tape fits against the tape feeding outlet block and reaches the punching working position at the end of the punching lower die.

[0012] A lower die ejecting block corresponding to the punching working position is arranged on the front side of the punching lower die. The lower die ejecting block is arranged at the upper end of a lower die ejecting slide block, and the lower die ejecting slide block is arranged in the ejecting spring chute of the punching base.

[0013] Further, the two tape feeding mechanisms transfer the terminal tape in opposite directions, and the terminal punching mechanism is arranged on the tape feeding support of one of the tape feeding mechanisms. The terminal punching mechanism includes a punching base plate arranged on the tape feeding support. A punching slide seat and a punching slide bar are arranged on the punching base plate. The punching slide bar is driven by a punching cylinder to move vertically in the punching slide seat. A punching upper die adjusting seat is arranged at the lower end of the punching slide bar. Two punching upper die modules are arranged on the punching upper die adjusting seat. Each punching upper die module is internally provided with a punching upper die and a blanking and ejecting block. The upper end of the blanking and ejecting block is arranged at the die pressing spring station in the punching upper die module. The lower end of the punching upper die corresponds to the punching notch of the blanking and ejecting block, and the punching notches respectively correspond to the punching stations.

[0014] Further, the assembly positioning mechanism is arranged on the front side of the punching station, and the terminal transfer mechanism is arranged on the rear side. The terminal transfer mechanism includes a transfer and insertion slide seat and a transfer and insertion cylinder arranged on the table board. The transfer and insertion cylinder drives a transfer and insertion slider to reciprocate in the transfer and insertion slide seat. A terminal clamping slide seat is arranged on the transfer and insertion slider through a transfer and insertion support. A terminal clamping gear and a group of clamping rack slide bars are arranged in the terminal clamping slide seat. The upper ends of the clamping rack slide bars are respectively provided with a transfer and insertion lower clamp and a transfer and insertion upper clamp. One of the clamping rack slide bars is driven by a terminal clamping cylinder. The transfer and insertion lower clamp and the transfer and insertion upper clamp clamp the middle positions of the terminals on both sides of the punching station in the vertical direction. After the two terminals are cut off from the terminal tape, they are inserted into the resistor chip electrode positions on the pin station through the transfer and insertion slider.

[0015] Optionally, V-shaped clamping grooves are arranged on both sides of the transfer and insertion lower clamp for positioning the clamping positions of the terminals; an insertion clamp movable block is arranged on the transfer and insertion upper clamp, and the insertion clamp movable block rotates in the horizontal direction.

[0016] Further, the assembly positioning mechanism includes an assembly station base. An insertion station block is arranged at the upper end of the assembly station base. The insertion station is arranged on the insertion station block. Insertion stoppers and insertion positioning cylinders are respectively arranged on both sides of the insertion station. An insertion swing pressing block is arranged at the rear side of the insertion station. The insertion swing pressing block is hinged to the assembly station base and is driven to swing by an insertion pressing cylinder.

[0017] Further, the discharging mechanism includes an assembled discharging bottom plate fixed on the table top plate and a transverse movement connecting support. The transverse movement connecting support is arranged on the assembled discharging bottom plate through a discharging guide rail slider pair. A guide rod sliding seat is arranged on the transverse movement connecting support. A clip seat plate is arranged on the guide rod sliding seat. The clip seat plate is driven to move up and down by a discharging vertical movement cylinder. A clip jaw cylinder is arranged on the clip seat plate. A clip is arranged at the working end of the clip jaw cylinder. The transverse movement connecting support is driven to move horizontally on one side of the pin inserting station by a discharging transverse movement cylinder, so that the clip clamps the middle position between two terminals.

[0018] Advantages of the technical solution of the present invention:

[0019] For the automatic assembling machine of double-terminal chip resistors in the embodiment of the present invention, the ceramic substrate is automatically loaded and split by the loading and granule-splitting mechanism to obtain resistor chips. At the same time, a set of terminals are obtained by automatic loading and punching through the cooperation of the tape feeding mechanism and the terminal punching mechanism. Then, the resistor chips and terminals are transferred to the pin inserting station of the assembling and positioning mechanism for automatic assembly by the material sucking and transferring mechanism and the terminal transferring mechanism; realizing the automatic loading, processing and assembly of resistor chips and terminals in double-terminal chip resistors, with a compact structure and high production efficiency. Description of the drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 is the three-dimensional structure of the automatic assembling machine of double-terminal chip resistors in the embodiment of the present invention Figure 1 ;

[0022] Figure 2 is the three-dimensional structure of the automatic assembling machine of double-terminal chip resistors in the embodiment of the present invention Figure 2 ;

[0023] Figure 3 is the three-dimensional partial exploded view of the loading and granule-splitting mechanism in the embodiment of the present invention;

[0024] Figure 4 is the three-dimensional partial exploded view of the granule-splitting part in the embodiment of the present invention;

[0025] Figure 5 is the sectional view of the granule-splitting part in the embodiment of the present invention;

[0026] Figure 6 is the three-dimensional structure of the transferring, assembling and discharging part in the embodiment of the present inventionFigure 1 ;

[0027] Figure 7 is the three-dimensional structure of the transfer, assembly and discharging part of the embodiment of the present invention Figure 2 ;

[0028] Figure 8 is the three-dimensional structure diagram of the terminal punching and transfer part of the embodiment of the present invention;

[0029] Figure 9 is the three-dimensional structure diagram with the terminal punching and transfer part of the embodiment of the present invention omitted;

[0030] Figure 10 is the three-dimensional structure diagram of the tape feeding mechanism of the embodiment of the present invention;

[0031] Figure 11 is the three-dimensional structure diagram of the terminal punching structure of the embodiment of the present invention;

[0032] Figure 12 is the three-dimensional exploded structure of the terminal transfer mechanism of the embodiment of the present invention Figure 1 ;

[0033] Figure 13 is the three-dimensional exploded structure of the terminal transfer mechanism of the embodiment of the present invention Figure 2 ;

[0034] Figure 14 is the front view structure diagram of the double-terminal chip resistor of the embodiment of the present invention;

[0035] Figure 15 is the three-dimensional exploded structure diagram of the double-terminal chip resistor of the embodiment of the present invention;

[0036] Among them, 10 - equipment body, 11 - main frame, 12 - table panel, 13 - waste box, 14 - feeding guide wheel;

[0037] 20 - loading and degranulating mechanism, 21 - loading support, 22 - transfer seat plate, 23 - loading inductor, 24 - loading pressure roller, 25 - transfer limit baffle, 26 - conveyor belt assembly, 27 - loading drive motor, 28 - loading transmission group;

[0038] 29 - degranulating connection seat, 291 - limit pressing groove, 292 - swinging installation station groove;

[0039] 210 - degranulating swing block, 2101 - degranulating station groove, 2102 - degranulating stop block, 2103 - movable installation groove, 2104 - swinging relief block, 2105 - chip removal slot;

[0040] 211 - swing seat plate, 2111 - swing action arm, 212 - swing shaft, 213 - degranulating movable block, 2131 - spring accommodation movable part, 2132 - degranulating positioning table part;

[0041] 214 - Movable pressing block, 215 - Pusher cylinder, 216 - Spring station for resetting granule removal, 217 - Swing cylinder, 218 - Granule removal limit block, 219 - Swing adjustment screw, 220 - Granule removal in-place sensor;

[0042] 221 - Pressing support, 222 - Granule removal pressing swing arm, 223 - Swing arm mounting block, 224 - Pressing cylinder, 225 - Pressing cylinder mounting block, 226 - Spring station for pressing reset;

[0043] 30 - Suction and transfer mechanism, 31 - Sleeve seat, 32 - Sheet feeding rotating shaft, 33 - Rotation limit ring, 331 - Rotation limit stop block, 34 - Pick-up cylinder, 35 - Pick-up suction nozzle, 36 - Rotation connecting block, 37 - Rotary cylinder, 38 - Rotary cylinder plate, 39 - Rotating sheet feeding stop bar;

[0044] 40 - Terminal unwinder;

[0045] 50 - Belt feeding mechanism, 51 - Belt feeding support, 52 - Belt feeding adjustment plate, 53 - Belt feeding slide cylinder, 54 - Belt feeding adjustment block, 55 - Belt feeding feed pawl, 56 - Belt feeding anti-retreat mounting block, 57 - Belt feeding anti-retreat pawl, 58 - Spring station for pawl reset, 59 - Belt feeding sensor, 510 - Belt feeding bottom groove plate, 5101 - Belt feeding groove, 511 - Belt feeding cover plate, 512 - Punching base, 5121 - Ejecting spring chute, 513 - Strip feeding outlet block, 514 - Punching lower die, 5141 - Chip removal relief groove, 515 - Lower die ejecting block, 516 - Lower die ejecting slide block, 517 - Ejecting chute cover;

[0046] 60 - Terminal punching mechanism, 61 - Punching seat plate, 62 - Punching cylinder, 63 - Punching slide seat, 64 - Punching slide rod, 65 - Punching upper die adjustment seat, 66 - Punching upper die block, 661 - Spring station for die pressing, 67 - Punching upper die, 68 - Pressure material ejecting block, 681 - Punching notch;

[0047] 70 - Terminal transfer mechanism, 71 - Transfer and insertion slide seat, 72 - Transfer and insertion slide block, 73 - Transfer and insertion cylinder, 74 - Transfer and insertion support, 75 - Terminal clamping slide seat, 76 - Terminal clamping cylinder, 77 - Insertion vertical adjustment screw, 78 - Clamping rack slide rod, 79 - Terminal clamping gear, 710 - Transfer and insertion lower clamp, 7101 - V-shaped clamping groove, 711 - Transfer and insertion upper clamp, 712 - Insertion clamp movable block;

[0048] 80 - Assembly positioning mechanism, 81 - Assembly station base, 82 - Pin insertion station block, 821 - Pin insertion station, 83 - Pin insertion stop block, 84 - Pin insertion positioning cylinder, 85 - Pin insertion swing pressing block, 86 - Pin insertion pressing cylinder, 87 - Pin insertion station sensor;

[0049] 90 - Discharging mechanism, 91 - Assembled discharging bottom plate, 92 - Discharging guide rail slider pair, 93 - Discharging transverse translation cylinder, 94 - Transverse translation connecting support, 95 - Guide rod sliding seat, 96 - Clip seat plate, 97 - Discharging vertical translation cylinder, 98 - Claw cylinder, 99 - Clip pliers, 910 - Transverse translation limit screw;

[0050] 100 - Chip resistor, 101 - Resistor chip, 102 - Terminal, 103 - Encapsulation shell;

[0051] 110 - Display controller;

[0052] 120 - Ceramic substrate;

[0053] 130 - Terminal tape, 131 - Tape hole. Specific embodiments

[0054] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted here that the description of these embodiments is for helping to understand the present invention, but does not constitute a limitation to the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0055] As Figure 1 、 14 、Figure 15 shows, the chip resistor 100 involved in the embodiment of the present invention, the chip resistor 100 includes a resistor chip 101, two terminals 102 and an encapsulation shell 103 covering the resistor chip 101. The terminals 102 can be formed into a terminal tape 130 through automated batch production methods such as stamping and blanking. The resistor chip 101 is obtained by printing, coating, sintering and then scribing and splitting on a ceramic substrate 120. The purpose of the present invention is to solve the technical problem of low production efficiency when assembling the terminals 102 and the resistor chip 101 manually.

[0056] Embodiment 1

[0057] As Figure 1 、 2As shown in the figure, an embodiment of the present invention provides a double-terminal chip resistor automatic assembly machine, which includes a device body 10, a feeding and granule-dismantling mechanism 20, a material-sucking and transferring mechanism 30, a belt-feeding mechanism 50, a terminal punching mechanism 60, a terminal transferring mechanism 70, an assembly positioning mechanism 80, and a discharging mechanism 90 arranged on the device body 10. The feeding and granule-dismantling mechanism 20 splits a ceramic substrate 120 into resistor chips. The material-sucking and transferring mechanism 30 places the resistor chips on the pin insertion station of the assembly positioning mechanism 80 from one side. The terminal transferring mechanism 70 is arranged corresponding to the front end of the pin insertion station. Belt-feeding mechanisms 50 are respectively arranged on both sides of the terminal transferring mechanism 70. The terminal strip 130 on the terminal pay-off reel 40 is respectively transferred from both sides to between the terminal transferring mechanism 70 and the pin insertion station, and is cut by the terminal punching mechanism 60 to form two terminals. The terminal transferring mechanism 70 assembles the two terminals to the resistor chips at the pin insertion station. The discharging mechanism 90 removes and discharges the resistor chips at the pin insertion station from the other side.

[0058] Specifically, the device body 10 includes a main frame 11 and a table board 12. The terminal pay-off reels 40 are respectively arranged on both sides of the main frame 11. The terminal strip 130 passes through a plurality of feeding guide wheels 14 from the terminal pay-off reels 40 and enters the belt-feeding mechanism 50 on the table board 12, and is cut by the terminal punching mechanism 60 between the two belt-feeding mechanisms 50 to form two terminals. The two terminals are pushed by the terminal transferring mechanism 70 towards the pin insertion station.

[0059] Such as Figures 3 - 5As shown, the feeding and pelletizing mechanism 20 includes a feeding support 21, a conveying seat plate 22 arranged on the feeding support 21, and a feeding drive motor 27. A conveyor belt assembly 26 is arranged on the conveying seat plate 22, and the feeding drive motor 27 is connected to drive the conveyor belt assembly 26 through a feeding transmission group 28; along the conveying direction of the conveyor belt assembly 26, a pelletizing connecting seat 29 is arranged at the end of the conveying seat plate 22, and a pelletizing swing block 210 installed in the pelletizing connecting seat 29 through a swing shaft 212 is arranged, a swing seat plate 211 is connected to the lower part of the pelletizing swing block 210, and a pelletizing movable block 213 is arranged on the swing seat plate 211; a limited pressing groove 291 is arranged on the pelletizing connecting seat 29, and a pelletizing swing block 210 is arranged on the pelletizing swing block 210 so as to be aligned with the limited pressing groove 291. 91 is connected to the corresponding grain disassembling station slot 2101, the grain disassembling movable block 213 is provided with a movable pressing block 214 corresponding to the grain disassembling station slot 2101, a grain disassembling reset spring (not shown) is provided between the grain disassembling movable block 213 and the grain disassembling connecting seat 29, and the movable pressing block 214 is combined with or separated from the grain disassembling station slot 2101 through a pushing cylinder 215; the ceramic substrate 120 enters the limiting pressing groove 291 from the conveyor belt assembly 26 and reaches the grain disassembling station slot 2101, and is fixed in the limiting pressing groove 291 through a grain disassembling pressing swing arm 222, and the swing seat plate 211 is struck by a swing cylinder 217 and drives the grain disassembling swing block 210 to swing downward, and the ceramic substrate 120 is cracked along the scratch portion to form a resistor 101.

[0060] Optionally, a conveying limit baffle 25 is provided on the conveying seat plate 22 along both sides of the conveyor belt assembly 26 , and a feeding sensor 23 and a feeding pressure roller 24 are provided on the conveying limit baffle 25 .

[0061] When using, Figure 3 , 4 As shown, a ceramic substrate 120 is pre-printed with a resistor film, a protective film, and an electrode, and a scratch portion is processed and set on the ceramic substrate 120 according to the specifications of the resistor sheet; the ceramic substrate 120 enters the limiting and pressing groove 291 of the grain disassembling connection seat 29 through the conveyor belt assembly 26, and the front end of the ceramic substrate 120 reaches the grain disassembling station groove 2101 on the grain disassembling swing block 210, and the ceramic substrate 120 is pressed in the limiting and pressing groove 291. As the grain disassembling swing block 210 swings downward, the ceramic substrate 120 is cracked along the scratch portion to form resistor sheets, which is similar to the action of breaking open a thin sheet, with a small amplitude and a compact structure.

[0062] Specifically, a limiting and pressing groove 291 is provided on the upper side of the granule removal connecting seat 29. Granule removal limiting blocks 218 are respectively provided on both sides of the limiting and pressing groove 291. A swinging installation station groove 292 is provided below the limiting and pressing groove 291. The granule removal swinging block 210 is installed in the swinging installation station groove 292 through the swinging shaft 212.

[0063] Specifically, along the conveying direction of the ceramic substrate 120, one side of the granule removal station groove 2101 of the granule removal swinging block 210 corresponds to the limiting and pressing groove 291, and a granule removal stop block 2102 is provided on the other side. A chip removal groove opening 2105 is formed between the granule removal stop blocks 2102. The chip removal groove opening 2105 is located at the front end of the ceramic substrate 120. With the conveying action, the chips generated by granule removal fall from the chip removal groove opening 2105 below the mechanism.

[0064] Optionally, swinging relief blocks 2104 are respectively provided at both ends of the granule removal swinging block 210 perpendicular to the conveying direction of the ceramic substrate 120. The swinging relief blocks 2104 are used to avoid interference with the granule removal connecting seat 29 when the granule removal swinging block 210 swings downward.

[0065] As Figure 3 、 5 shown, an activity installation groove 2103 is provided between the granule removal swinging block 210 and the swinging seat plate 211. The spring accommodation and activity part 2131 of the granule removal activity block 213 cooperates with the activity installation groove 2103. A granule removal reset spring station 216 is provided in the spring accommodation and activity part 2131 for installing the granule removal reset spring.

[0066] As Figure 3 、 4 shown, a push block cylinder 215 is provided at the rear end of the swinging seat plate 211 through a cylinder installation block. The push block cylinder 215 extends to push the granule removal activity block 213 to be combined with the granule removal swinging block 210. After the push block cylinder 215 contracts, the granule removal reset spring separates the granule removal activity block 213 from the granule removal swinging block 210.

[0067] Specifically, a granule removal positioning table part 2132 is provided on the granule removal activity block 213 corresponding to the granule removal station groove 2101. The activity pressing block 214 is arranged on the upper part of the granule removal positioning table part 2132. When the granule removal activity block 213 is combined with the granule removal swinging block 210, the activity pressing block 214 covers the front end of the scratched part of the ceramic substrate 120 and restricts it in the granule removal station groove 2101.

[0068] Optionally, a granulation completion inductor 220 is respectively provided corresponding to the granulation station groove 2101 on the granulation positioning table portion 2132. The granulation completion inductor 220 is a proximity switch or an inductive optical fiber.

[0069] As Figures 3 - 5 shown, along the conveying direction of the ceramic substrate 120, there is an extension between the granulation station groove 2101 and the side of the granulation stopper 2102. When the granulation movable block 213 is combined with the granulation swing block 210, the movable pressing block 214 covers the front end of the first scratched portion of the ceramic substrate 120 and confines it within the granulation station groove 2101, and a gap is formed between the front end of the ceramic substrate 120 and the granulation stopper 2102.

[0070] As Figure 3 、 4 shown, the swing cylinder 217 is fixed to the lower side of the granulation connection seat 29 through a cylinder mounting seat. A swing action arm 2111 is extended and provided on the lower side of the swing seat plate 211. The swing cylinder 217 strikes the swing action arm 2111 to drive the granulation swing block 210 to swing, so that the granulation station groove 2101 of the granulation swing block 210 swings downward to separate from the limit pressing groove 291 of the granulation connection seat 29 and causes the ceramic substrate 120 to crack along the scratched portion at the granulation position.

[0071] During use, the swing cylinder 217 strikes the swing action arm 2111 to drive the granulation swing block 210 to swing, and at the same time compresses the granulation return spring. After the swing cylinder 217 contracts, the granulation return spring resets to make the granulation station groove 2101 of the granulation swing block 210 communicate and combine with the limit pressing groove 291 of the granulation connection seat 29.

[0072] Optionally, a swing adjustment screw 219 is provided in the swing installation station groove 292 of the granulation connection seat 29 corresponding to the granulation swing block 210 or the swing seat plate 211 for adjusting the swing amplitude.

[0073] As Figures 3 - 5 shown, one end of the granulation pressing swing arm 222 is hinged to the swing arm mounting block 223. The swing arm mounting block 223 is fixed to the pressing support seat 221. A pressing cylinder 224 is provided corresponding to the upper side of the granulation pressing swing arm 222. The pressing cylinder 224 is fixed to the pressing support seat 221 through a pressing cylinder mounting block 225. A pressing return spring station 226 is provided between the pressing cylinder mounting block 225 and the granulation pressing swing arm 222 for installing a pressing return spring (not shown).

[0074] Initially, under the action of the pressing and resetting spring, the granule removal pressing swing arm 222 is away from the limit pressing groove 291 of the granule removal connecting seat 29. During granule removal, the pressing cylinder 224 drives the granule removal pressing swing arm 222 to swing downward and presses and fixes the ceramic substrate 120 in the limit pressing groove 291. Among them, the pressing support 221 can be fixed on the table board, the granule removal connecting seat 29 or the end of the conveying seat board.

[0075] As Figure 6 , 7 shown, the material suction and transfer mechanism 30 includes a sleeve seat 31, a sheet feeding rotating shaft 32 arranged in the sleeve seat 31, a material taking cylinder 34 arranged at the upper end of the sheet feeding rotating shaft 32, a material taking suction nozzle 35 arranged at the working end of the material taking cylinder 34, and the lower end of the sheet feeding rotating shaft 32 is connected to a rotary cylinder 37 through a rotary connecting block 36; a rotary limit ring 33 is arranged at the upper end of the sleeve seat 31, and a rotary limit stop block 331 is arranged on the rotary limit ring 33, so that the material taking suction nozzle 35 moves between the granule removal station groove and the pin insertion station.

[0076] Optionally, a rotary cylinder plate 38 is installed on the rotary cylinder 37, and a rotary sheet feeding stop rod 39 is arranged on the lower side of the table board 12 corresponding to the rotary cylinder plate 38.

[0077] Initially, the ceramic substrate reaches the granule removal connecting seat under the conveyance of the conveyor belt assembly. Under the action of the granule removal reset spring, the granule removal station groove of the granule removal swing block is communicated and combined with the limit pressing groove of the granule removal connecting seat. The push block cylinder is in a contracted state. Under the action of the granule removal reset spring, the granule removal movable block and the granule removal swing block are in a separated state, and the movable pressing block deviates from the granule removal station groove, exposing directly above the granule removal station groove.

[0078] First, the push block cylinder extends and compresses the granule removal reset spring, the granule removal movable block is combined with the granule removal swing block, and the movable pressing block covers directly above the granule removal station groove.

[0079] Secondly, when the ceramic substrate reaches within the granule removal station groove, the movable pressing block blocks the front end of the ceramic substrate. The front end of the ceramic substrate is restricted within the granule removal station groove, and a gap is formed between the front end of the ceramic substrate and the granule removal stop block. After sensing that the front end of the ceramic substrate is in place, the pressing cylinder drives the granule removal pressing swing arm to fix the ceramic substrate in the limit pressing groove, triggering the swing cylinder to strike the swing action arm of the swing seat board, so that the swing seat board, the granule removal swing block, and the granule removal movable block simultaneously swing downward along the swing axis, and the ceramic substrate splits along the scratch part at the connection position between the granule removal station groove and the limit pressing groove, forming a resistance sheet.

[0080] Then, under the action of the granule-removing reset spring, the granule-removing station groove of the granule-removing swing block and the limit pressing groove of the granule-removing connecting seat are restored to communicate. The pushing block cylinder contracts. Under the action of the granule-removing reset spring again, the granule-removing movable block is separated from the granule-removing swing block, and the movable pressing block deviates from the granule-removing station groove, exposing the resistance sheet on the granule-removing station groove. After the pushing block cylinder contracts, the rotary cylinder operates to make the material-taking suction nozzle reach above the granule-removing station groove, and the material-taking cylinder contracts to make the material-sucking suction nozzle move down to suck and transfer the resistance sheet;

[0081] Finally, after sensing that the resistance sheet on the granule-removing station groove has been transferred, the pressing cylinder resets to perform the next chip-splitting and granule-removing action. Since a gap is formed between the front end of the ceramic substrate and the granule-removing stopper, the split resistance sheet will not be clamped in the granule-removing station groove, and the chip removal slot is conducive to the falling of debris.

[0082] As Figure 1 、 2 、shown in Figure 10, the tape feeding mechanism 50 includes a tape feeding support 51 and a tape feeding adjusting plate 52 arranged on the tape feeding support 51. A tape feeding adjusting block 54 is driven on the tape feeding adjusting plate 52 by a tape feeding slide cylinder 53. A tape feeding feed pawl 55 is hingedly arranged on the tape feeding adjusting block 54. A tape feeding bottom groove plate 510 is arranged below the tape feeding feed pawl 55. The tape feeding bottom groove plate 510 is arranged on a punching base 512. The tape feeding feed pawl 55 acts on the tape hole 131 of the terminal tape 130, so that the terminal tape 130 is transferred towards the middle of the two punching bases 512 in the tape feeding groove 5101 of the tape feeding bottom groove plate 510; along the transfer direction of the terminal tape 130, a tape feeding outlet block 513 and a punching lower die 514 are arranged at the end of the punching base 512. The rear side of the terminal tape 130 abuts against the tape feeding outlet block 513 and reaches the punching station at the end of the punching lower die 514;

[0083] A lower die ejecting block 515 is arranged corresponding to the punching station on the front side of the punching lower die 514. The lower die ejecting block 515 is arranged at the upper end of a lower die ejecting slider 516. The lower die ejecting slider 516 is arranged in the ejecting spring chute 5121 of the punching base 512.

[0084] Optionally, an ejecting chute cover 517 is arranged corresponding to the ejecting spring chute 5121.

[0085] Optionally, at the punching station, a relief chip removal groove 5141 is opened on the punching lower die 514 and the punching base 512, and a waste box 13 is arranged corresponding to the lower part of the table top plate 12.

[0086] Optionally, a tape cover plate 511 is provided on the tape feeding groove 5101, and a tape anti-retraction pawl 57 and a tape sensor 59 are provided on the rear side of the tape feeding pawl 55 along the moving direction of the terminal tape 130. The tape anti-retraction pawl 57 is hingedly installed on the tape feeding adjustment plate 52 through a tape anti-retraction mounting block 56, and the tape anti-retraction pawl 57 cooperates with the tape hole 131 of the terminal tape 130;

[0087] Optionally, a pawl return spring (not shown) is installed between the belt feeding adjustment block 54 and the belt feeding pawl 55 via a pawl return spring station 58; a pawl return spring (not shown) is also installed between the belt feeding anti-retraction installation block 56 and the belt feeding anti-retraction pawl 57 via a pawl return spring station 58.

[0088] like Figure 8 , 11 As shown, the two tape feeding mechanisms 50 transfer the terminal material tape 130 toward each other, and the terminal punching mechanism 60 is arranged on the tape feeding support 51 of one of the tape feeding mechanisms 50, and the terminal punching mechanism 60 includes a punching seat plate 61 arranged on the tape feeding support 51, and a punching slide 63 and a punching slide rod 64 are arranged on the punching seat plate 61. The punching slide rod 64 is driven by a punching cylinder 62 to move vertically in the punching slide 63, and the punching slide rod 64 A punching upper die adjustment seat 65 is provided at the lower end, and two punching upper modules 66 are provided on the punching upper die adjustment seat 65. A punching upper die 67 and a press ejection block 68 are provided in each of the punching upper modules 66. The upper end of the press ejection block 68 is provided at a press die spring station 661 in the punching upper module 66. The lower end of the punching upper die 67 corresponds to the punching notch 681 of the press ejection block 68, and the punching notches 681 correspond to the punching stations respectively.

[0089] like Figure 8 , 12As shown in FIGS. 13, the assembly positioning mechanism 80 is provided in the front side of the punching station, and the terminal transfer mechanism 70 is provided in the rear side. The terminal transfer mechanism 70 includes a transfer and insertion slide base 71 and a transfer and insertion cylinder 73 disposed on the table board 12. The transfer and insertion cylinder 73 drives a transfer and insertion slider 72 to reciprocate within the transfer and insertion slide base 71. A terminal clamping slide base 75 is provided on the transfer and insertion slider 72 through a transfer and insertion support 74. A terminal clamping gear 79 and a set of clamping rack slide rods 78 are disposed within the terminal clamping slide base 75. The upper ends of the clamping rack slide rods 78 are respectively installed with a transfer and insertion lower clamp 710 and a transfer and insertion upper clamp 711. One of the clamping rack slide rods 78 is driven by a terminal clamping cylinder 76. The transfer and insertion lower clamp 710 and the transfer and insertion upper clamp 711 clamp the middle positions of the terminals on both sides of the punching station in the vertical direction. After two terminals are cut off from the terminal strip 130, they are inserted into the resistor chip electrode positions on the pin insertion station through the transfer and insertion slider 72.

[0090] Optionally, an insertion vertical adjustment screw 77 is provided on the transfer and insertion slide base 71 for adjusting the opening and closing center of the transfer and insertion lower clamp 710 and the transfer and insertion upper clamp 711 and the center insertion position of the resistor chip.

[0091] Optionally, V-shaped clamping grooves 7101 are provided on both sides of the transfer and insertion lower clamp 710 for positioning the clamping positions of the terminals; an insertion clamp movable block 712 is provided on the transfer and insertion upper clamp 711, and the insertion clamp movable block 712 rotates in the horizontal direction. In this way, two terminals are adaptively clamped in the two V-shaped clamping grooves. Because when the lower surface of the insertion clamp movable block contacts the upper surface of the terminal, even if the upper surfaces of the two terminals are not at the same height, as the transfer and insertion lower clamp and the transfer and insertion upper clamp are closed, one of the terminals is contacted and clamped, and the insertion clamp movable block rotates horizontally within the transfer and insertion upper clamp to clamp the other terminal.

[0092] As Figure 6 、 7 As shown in FIGS. 9, the assembly positioning mechanism 80 includes an assembly station base 81. An insertion pin station block 82 is provided at the upper end of the assembly station base 81. An insertion pin station 821 is provided on the insertion pin station block 82. An insertion pin stopper 83 and an insertion pin positioning cylinder 84 are respectively provided on both sides of the insertion pin station 821. An insertion pin swing pressing block 85 is provided at the rear side of the insertion pin station 821. The insertion pin swing pressing block 85 is hingedly disposed on the assembly station base 81 and is driven to swing by an insertion pin pressing cylinder 86.

[0093] Optionally, an insertion pin station inductor 87 is provided on the insertion pin station block 82 corresponding to the insertion pin station 821.

[0094] As Figure 6, 7 As shown, the discharge mechanism 90 includes an assembly discharge base plate 91 fixed to the table panel 12 and a transverse connecting support 94. The transverse connecting support 94 is arranged on the assembly discharge base plate 91 through a discharge guide rail slider pair 92. A guide rod slide 95 is arranged on the transverse connecting support 94. A clip seat plate 96 is arranged on the guide rod slide 95. The clip seat plate 96 is driven to move up and down by a discharge vertical cylinder 97. A clamp cylinder 98 is arranged on the clip seat plate 96. A clamp 99 is arranged at the working end of the clamp cylinder 98. The transverse connecting support 94 is driven by a discharge transverse cylinder 93 to move laterally on one side of the pin station 821, so that the clamp 99 clamps to the middle position between the two terminals.

[0095] Optionally, transverse limit screws 910 are respectively provided on both sides of the transverse connection support 94 .

[0096] When in use, along the direction of the terminal material strip transfer, the tape feeding mechanisms on both sides push the terminal material strip from the terminal unwinding machine to the punching station, transfer and insert the lower clamp, transfer and insert the upper clamp to open the clamp and clamp the front end of the terminal material strips on both sides at the same time, the material pressing and ejecting block moves downward and contacts the terminal material strip, further squeezes the lower die ejecting block and the lower die ejecting slider, and compresses the ejecting spring (not shown); after the material pressing and ejecting block compresses the die spring (not shown), the punching upper die extends out of the punching notch and cooperates with the punching lower die to cut off the terminal material strip, and the punching upper die enters the chip removal groove; the punching cylinder resets to drive the punching upper die and the material pressing and ejecting block to move upward, and the die spring resets; the ejecting spring resets, and the material pressing and ejecting block ejects the cut terminal upward a small height.

[0097] The material suction and transfer mechanism transfers the resistor to the pin station, the pin station sensor generates an induction signal, the pin positioning cylinder and the pin pressing cylinder work in sequence, the pin swing pressure block presses the resistor after positioning it at the pin station, and the transfer and insertion cylinder works to insert the terminals on the transfer and insertion lower clamp and the transfer and insertion upper clamp into the electrode position of the resistor.

[0098] The terminal clamping cylinder opens the clamp to release the material, and after the transfer and insertion cylinder is reset, the tape feeding mechanism performs the next terminal punching and cutting action; at the same time, the material discharging transverse movement cylinder extends to make the transverse movement connection support move laterally close to the pin station, the clamping claw cylinder works to make the clip clamp clamp the middle position of the two terminals, the pin positioning cylinder is reset, the pin pressing cylinder is reset, the pin swinging pressure block releases the resistor, the material discharging vertical movement cylinder extends upward to move the resistor upward out of the pin station, the material discharging transverse movement cylinder is reset and drives the assembled resistor to be discharging laterally.

[0099] Repeat the above steps to carry out the next assembly.

[0100] like Figure 1 ,2 As shown, the double-terminal chip resistor automatic assembly machine further includes a display controller 110, and the display controller 110 is electrically connected to the feeding and granule separating mechanism 20, the material sucking and transferring mechanism 30, the terminal unwinding machine 40, the belt feeding mechanism 50, the terminal punching mechanism 60, the terminal transferring mechanism 70, the assembly positioning mechanism 80, and the discharging mechanism 90. The equipment body 10 further includes a gas source system, a pneumatic control component, an electromagnetic control valve group, etc., which are devices purchased from the existing market and will not be elaborated here.

[0101] In the double-terminal chip resistor automatic assembly machine according to the embodiment of the present invention, the ceramic substrate is automatically fed and split by the feeding and granule separating mechanism to obtain resistor chips. At the same time, a set of terminals are automatically fed and punched at one time through the cooperation of the belt feeding mechanism and the terminal punching mechanism. Then, the resistor chips and terminals are transferred to the pin insertion station of the assembly positioning mechanism by the material sucking and transferring mechanism and the terminal transferring mechanism for automatic assembly; realizing the automatic feeding, processing, and assembly of the resistor chips and terminals in the double-terminal chip resistor, with a compact structure and high production efficiency.

[0102] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present invention, various changes, modifications, substitutions, and variations made to these embodiments still fall within the protection scope of the present invention.

Claims

1. A dual-terminal chip resistor automatic assembly machine, characterized in that: It comprises an equipment body, a loading and degranulating mechanism, a material suction and transfer mechanism, a tape feeding mechanism, a terminal punching and cutting mechanism, a terminal transfer mechanism, an assembly positioning mechanism and a discharging mechanism arranged on the equipment body, wherein the loading and degranulating mechanism splits the ceramic substrate into resistors, the material suction and transfer mechanism places the resistor from one side to the pin station of the assembly positioning mechanism, the terminal transfer mechanism is arranged corresponding to the front end of the pin station, tape feeding mechanisms are arranged on both sides of the terminal transfer mechanism, the terminal material tape on the terminal unwinding machine is transferred from both sides to between the terminal transfer mechanism and the pin station, cut by the terminal punching and cutting mechanism to form two terminals, the terminal transfer mechanism assembles the two terminals to the resistor at the pin station, and the discharging mechanism removes the resistor at the pin station from the other side for unloading; The equipment body comprises a main frame and a table panel, the terminal unwinding machines are respectively arranged on both sides of the main frame, the terminal material strip passes through a plurality of feeding guide wheels from the terminal unwinding machine into the tape feeding mechanism on the table panel, and is cut by the terminal punching mechanism between the two tape feeding mechanisms to form two terminals, and the two terminals are pushed to the pin station by the terminal transfer mechanism; The belt feeding mechanism comprises a belt feeding support, a belt feeding adjustment plate arranged on the belt feeding support, the belt feeding adjustment block is driven by the belt feeding slide cylinder on the belt feeding adjustment plate, a belt feeding pawl is hingedly arranged on the belt feeding adjustment block, a belt feeding bottom slot plate is arranged at the lower side of the belt feeding pawl, the belt feeding bottom slot plate is arranged on a punching base, the belt feeding pawl acts on the material strip hole on the terminal material strip, so that the terminal material strip is transferred to the middle of the two punching bases in the belt feeding slot of the belt feeding bottom slot plate; along the terminal material strip transfer direction, a material strip feed outlet block and a punching lower die are arranged at the end of the punching base, and the rear side of the terminal material strip is attached to the material strip feed outlet block to reach the punching station at the end of the punching lower die; A lower die ejector block is arranged at the front side of the punching lower die corresponding to the punching station, the lower die ejector block is arranged at the upper end of a lower die ejector slide block, and the lower die ejector slide block is arranged in an ejector spring slide groove of the punching base; The two belt feeding mechanisms move the terminal material belts towards each other, and the terminal punching mechanism is arranged on the belt feeding support of one of the belt feeding mechanisms, and the terminal punching mechanism includes a punching seat plate arranged on the belt feeding support, and a punching slide and a punching slide rod are arranged on the punching seat plate, and the punching slide rod is driven by a punching cylinder to move vertically in the punching slide, and a punching upper die adjustment seat is arranged at the lower end of the punching slide rod, and two punching upper modules are arranged on the punching upper die adjustment seat, each of the punching upper modules is arranged with a punching upper die and a press ejection block, and the upper end of the press ejection block is arranged at a press die spring station in the punching upper module, and the lower end of the punching upper die corresponds to the punching notch of the press ejection block, and the punching notches correspond to the punching stations respectively.

2. The double-terminal chip resistor automatic assembly machine according to claim 1, characterized in that: The feeding and degranulating mechanism comprises a feeding support, a conveying seat plate arranged on the feeding support, and a feeding drive motor; the conveying seat plate is provided with a conveyor belt assembly, and the feeding drive motor is connected to drive the conveyor belt assembly through a feeding transmission group; along the conveying direction of the conveyor belt assembly, a degranulating connecting seat is provided at the end of the conveying seat plate, and a degranulating swing block installed in the degranulating connecting seat through a swing shaft is provided; a swing seat plate is connected to the lower part of the degranulating swing block, and a degranulating movable block is provided on the swing seat plate; a limited clamping groove is provided on the degranulating connecting seat, and a swing block is provided on the degranulating swing block. The limiting and pressing groove is connected to the corresponding grain-demolition station groove, the grain-demolition movable block is provided with a movable pressing block corresponding to the grain-demolition station groove, a grain-demolition reset spring is provided between the grain-demolition movable block and the grain-demolition connecting seat, and the movable pressing block is combined with or separated from the grain-demolition station groove by a pushing cylinder; the ceramic substrate enters the limiting and pressing groove from the conveyor belt assembly and reaches the grain-demolition station groove, and is fixed in the limiting and pressing groove by a grain-demolition pressing swing arm, the swing seat plate is struck by a swing cylinder and drives the grain-demolition swing block to swing downward, and the ceramic substrate cracks along the scratch portion to form a resistor.

3. The automatic assembly machine for double-terminal chip resistors according to claim 1, characterized in that: The material suction and transfer mechanism includes a sleeve seat, a film feeding shaft arranged in the sleeve seat, a material picking cylinder is arranged at the upper end of the film feeding shaft, a material picking suction nozzle is arranged at the working end of the material picking cylinder, and the lower end of the film feeding shaft is connected to the rotary cylinder through a rotating connecting block; a rotation limit ring is arranged at the upper end of the sleeve seat, and a rotation limit block is arranged on the rotation limit ring, so that the material picking suction nozzle moves between the pelletizing station slot and the pin insertion station.

4. The double-terminal chip resistor automatic assembly machine according to claim 1, characterized in that: The assembly positioning mechanism is arranged at the front side of the punching station, and the terminal transfer mechanism is arranged at the rear side, the terminal transfer mechanism includes a transfer and insertion slide and a transfer and insertion cylinder arranged on the table panel, the transfer and insertion cylinder drives a transfer and insertion slide to reciprocate in the transfer and insertion slide, a terminal clamping slide is arranged on the transfer and insertion slide through a transfer and insertion support, a terminal clamping gear and a group of clamping rack slides are arranged in the terminal clamping slide, and a transfer and insertion lower clamp and a transfer and insertion upper clamp are respectively installed on the upper end of the clamping rack slide, one of the clamping rack slides is driven by a terminal clamping cylinder, the transfer and insertion lower clamp and the transfer and insertion upper clamp clamp the middle position of the terminals on both sides of the punching station from the vertical direction, and after the two terminals are cut off from the terminal strip, they are inserted into the resistor sheet electrode position on the pin station through the transfer and insertion slide.

5. The automatic assembly machine for double-terminal chip resistors according to claim 4, characterized in that: V-shaped clamping grooves are arranged on both sides of the transfer and insertion lower clamp for locating the clamping position of the terminal; an insertion clamp movable block is arranged on the transfer and insertion upper clamp, and the insertion clamp movable block rotates in the horizontal direction.

6. The automatic assembly machine for double-terminal chip resistors according to claim 1, characterized in that: The assembly positioning mechanism includes an assembly station base, a pin station block is arranged at the upper end of the assembly station base, the pin station is arranged on the pin station block, pin stoppers and pin positioning cylinders are arranged on both sides of the pin station, a pin swinging pressure block is arranged at the rear side of the pin station, the pin swinging pressure block is hingedly arranged on the assembly station base, and is driven to swing by a pin clamping cylinder.

7. The automatic assembly machine for double-terminal chip resistors according to claim 1, characterized in that: The discharging mechanism includes an assembly discharging base plate fixed to the table panel and a transverse connecting support, the transverse connecting support is arranged on the assembly discharging base plate through a discharging guide rail slider pair, the transverse connecting support is provided with a guide rod slide, the guide rod slide is provided with a clip seat plate, the clip seat plate is driven up and down by a discharging vertical movement cylinder, a clamping claw cylinder is provided on the clip seat plate, a clamping clamp is provided at the working end of the clamping claw cylinder, and the transverse connecting support is driven by a discharging transverse movement cylinder to move transversely on one side of the pin station so that the clamp is clamped to the middle position of the two terminals.

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