Automatic assembling machine for double-terminal chip resistor

Abstract

The invention discloses a double-terminal chip resistor automatic assembling machine, which comprises an equipment body, and a feeding and particle disassembling mechanism, a material sucking and transferring mechanism, a belt conveying mechanism, a terminal punching mechanism, a terminal transferring mechanism, an assembling and positioning mechanism and a discharging mechanism which are arranged on the equipment body, and is characterized in that a ceramic substrate is automatically fed and cracked through the feeding and particle disassembling mechanism to obtain a resistor disc; meanwhile, a set of terminals are obtained through one-time automatic feeding and punching through cooperation of the belt feeding mechanism and the terminal punching mechanism, and then the resistor discs and the terminals are transferred to a pin inserting station of the assembling and positioning mechanism through the material sucking and transferring mechanism and the terminal transferring mechanism to be automatically assembled; automatic feeding, machining and assembling of the resistor discs and the terminals in the double-terminal chip resistor are achieved, the structure is compact, and the production efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of chip resistor production and manufacturing, and in particular to an automatic assembly machine for double-terminal chip resistors. Background Art

[0002] Chip components (SMC and SMD) are new tiny components without leads or short-circuit leads. They are widely used in contemporary electronic products. They are suitable for installation on printed 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 boards, and all solder joints are on the same plane.

[0003] The difference between chip components and ordinary components is not only in the way they are installed on the circuit board, but also in the manufacturing process. For example, chip resistors are generally composed of the following materials: substrate (ceramic substrate), resistor paste (R paste), back conductive material, positive conductive material and side conductive material (Ag paste), primary protective glass G1, secondary protective glass G2, and Mark material; the resistor sheet is formed by the above materials. Usually, chip components are directly installed on the printed circuit board in a patch-type manner, and cannot be installed on a perforated printed circuit board; or some high-power chip components are directly installed on the printed circuit board, which is not conducive to the mutual isolation between components and between components and circuits, and is prone to mutual interference. Therefore, it is necessary to develop some chip components that have the chip characteristics of chip components but can be installed vertically, such as chip resistors with terminals. The process of making chip resistors with terminals is as follows: first, printing electrodes, primary sintering, printing resistor circuits, secondary sintering, and printing protective glass films are performed in sequence on a pre-marked ceramic substrate, and then the resistor chips are cracked; then the terminals are shaped, and the terminals are combined with the resistor chips made by the chip component process, and the resistor chips are inserted into the open ends of the shaped terminals to form a combination, so that the horizontally extending parts on both sides of the terminals are attached to the upper and lower surfaces of the resistor chips, and the terminals and the resistor chips are welded so that the terminals are welded to the upper and lower surfaces of the resistor chips to form a joint; then, insulation packaging, curing of the insulation layer, plastic shell molding, electrical testing, marking, and pin cutting are performed to obtain qualified chip resistor products.

[0004] During manufacturing, the terminals can be automatically mass-produced through stamping, punching, etc., and the resistors can also be automatically printed and produced. Then, the terminals and the electrodes on the resistors are manually fixed and welded together. Since the resistors and terminals are very small in size, manual loading, positioning and clamping are very inconvenient, which restricts production efficiency. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an automatic assembly machine for double-terminal chip resistors, which can realize automatic loading, assembly and unloading of resistor chips and terminals, and has automatic operation and high production efficiency.

[0006] In order to solve the above technical problems, the technical solution of the present invention is as follows: A dual-terminal chip resistor automatic assembly machine comprises an equipment body, a loading and degranulating mechanism, a material suction and transfer mechanism, a tape feeding mechanism, a terminal punching 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 a ceramic substrate into resistor chips, the material suction and transfer mechanism places the resistor chip from one side to a pin insertion station of the assembly positioning mechanism, the terminal transfer mechanism is arranged corresponding to the front end of the pin insertion station, tape feeding mechanisms are arranged on both sides of the terminal transfer mechanism, the terminal material tape on a terminal unwinding machine is respectively transferred from both sides to between the terminal transfer mechanism and the pin insertion station, cut by the terminal punching mechanism to form two terminals, the terminal transfer mechanism assembles the two terminals to the resistor chip at the pin insertion station, and the discharging mechanism removes the resistor chip at the pin insertion station from the other side for unloading.

[0007] Specifically, the equipment body includes 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 from the terminal unwinding machine through a plurality of feed guide wheels 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. The two terminals are pushed to the pin station by the terminal transfer mechanism.

[0008] Furthermore, the feeding and degranulating mechanism includes 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, the degranulating swing block is connected to a swing seat plate below, 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 A corresponding grain-demolition station slot connected to the limit pressing slot is provided, the grain-demolition movable block is provided with a movable pressing block corresponding to the grain-demolition station slot, 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 slot by a pushing cylinder; the ceramic substrate enters the limit pressing slot from the conveyor belt assembly and reaches the grain-demolition station slot, and is fixed in the limit pressing slot by a grain-demolition pressing swing arm, and 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.

[0009] Furthermore, 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 can move between the pelletizing station slot and the pin insertion station.

[0010] Furthermore, 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 a 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 groove plate is arranged at the lower side of the belt feeding pawl, the belt feeding bottom groove plate is arranged on a punching base, the belt feeding pawl acts on the material belt hole on the terminal material belt, so that the terminal material belt is transferred to the middle of the two punching bases in the belt feeding groove of the belt feeding bottom groove plate; along the terminal material belt transfer direction, a material belt feeding outlet block and a punching lower die are arranged at the end of the punching base, and the rear side of the terminal material belt is attached to the material belt feeding outlet block to reach the punching station at the end of the punching lower die; A lower die ejection block is arranged at the front side of the punching lower die corresponding to the punching station, the lower die ejection block is arranged at the upper end of a lower die ejection slide block, and the lower die ejection slide block is arranged in the ejection spring slide groove of the punching base.

[0011] Furthermore, the two tape feeding mechanisms transfer the terminal material tapes towards each other, and the terminal punching mechanism is arranged on the tape feeding support of one of the tape feeding mechanisms, and the terminal punching mechanism includes a punching seat plate arranged on the tape 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.

[0012] Furthermore, 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, and the terminal transfer mechanism includes a transfer and insertion slide and a transfer and insertion cylinder arranged on the table panel, and the transfer and insertion cylinder drives a transfer and insertion slide to reciprocate in the transfer and insertion slide, and a terminal clamping slide is arranged on the transfer and insertion slide through a transfer and insertion support, and 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, and one of the clamping rack slides is driven by a terminal clamping cylinder, and 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.

[0013] Optionally, V-shaped clamping grooves are provided on both sides of the transfer and insertion lower clamp for locating the clamping position of the terminal; and an insertion clamp movable block is provided on the transfer and insertion upper clamp, and the insertion clamp movable block rotates in the horizontal direction.

[0014] Furthermore, the assembly positioning mechanism includes an assembly station base, a pin station block is arranged on 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 on 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.

[0015] Furthermore, 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 clamp cylinder is provided on the clip seat plate, a clamp is provided at the working end of the clamp 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 between the two terminals.

[0016] Beneficial effects of the technical solution of the present invention: The automatic assembly machine for dual-terminal chip resistors in the embodiment of the present invention automatically loads and splits the ceramic substrate into pieces through a loading and degranulating mechanism to obtain a resistor sheet, and simultaneously automatically loads and punches a group of terminals through a belt feeding mechanism and a terminal punching mechanism in cooperation, and then transfers the resistor sheet and the terminal to the pin station of the assembly positioning mechanism for automatic assembly through a material suction transfer mechanism and a terminal transfer mechanism; the automatic loading, processing and assembly of the resistor sheet and the terminal in the dual-terminal chip resistor is realized, and the structure is compact and the production efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 The three-dimensional structure of the automatic assembly machine for double-terminal chip resistors according to the embodiment of the present invention Figure 1 ; Figure 2 The three-dimensional structure of the automatic assembly machine for double-terminal chip resistors according to the embodiment of the present invention Figure 2 ; Figure 3 It is a partially exploded three-dimensional structural diagram of the feeding and pelletizing mechanism of an embodiment of the present invention; Figure 4 A three-dimensional decomposition structure diagram of the disassembly part of an embodiment of the present invention; Figure 5 It is a cross-sectional structural diagram of the disassembly part of an embodiment of the present invention; Figure 6 The three-dimensional structure of the transfer assembly discharge part of the embodiment of the present invention Figure 1 ; Figure 7 The three-dimensional structure of the transfer assembly discharge part of the embodiment of the present invention Figure 2 ; Figure 8 3D structure diagram of the terminal punching and transferring part of the embodiment of the present invention; Fig. 9 It is a three-dimensional structural diagram of the terminal punching and transferring part of an embodiment of the present invention; Fig.10 is a three-dimensional structural diagram of a tape feeding mechanism according to an embodiment of the present invention; Fig.11 is a three-dimensional structural diagram of a terminal punching structure according to an embodiment of the present invention; Fig.12 The three-dimensional decomposition structure of the terminal transfer mechanism of the embodiment of the present invention Figure 1 ; Fig.13 The three-dimensional decomposition structure of the terminal transfer mechanism of the embodiment of the present invention is Figure 2 ; Fig.14 This is a front view of a double-terminal chip resistor according to an embodiment of the present invention; Fig.15 3D decomposition diagram of a two-terminal chip resistor according to an embodiment of the present invention; Among them, 10-equipment body, 11-main frame, 12-table panel, 13-waste box, 14-feed guide wheel; 20-feeding and pelletizing mechanism, 21-feeding support, 22-transmission seat plate, 23-feeding sensor, 24-feeding pressure roller, 25-transmission limit baffle, 26-conveyor belt assembly, 27-feeding drive motor, 28-feeding transmission group; 29-particle disassembly connection seat, 291-limiting pressing groove, 292-swing installation station groove; 210-grain disassembling swing block, 2101-grain disassembling station slot, 2102-grain disassembling stopper, 2103-movable mounting slot, 2104-swinging clearance block, 2105-chip removal slot; 211-swing seat plate, 2111-swing action arm, 212-swing shaft, 213-grain disassembling movable block, 2131-spring accommodating movable part, 2132-grain disassembling positioning platform; 214-movable pressing block, 215-pushing cylinder, 216-grain removal reset spring station, 217-swinging cylinder, 218-grain removal limit block, 219-swinging adjustment screw, 220-grain removal in place sensor; 221-pressing support, 222-particle disassembling and pressing swing arm, 223-swing arm mounting block, 224-pressing cylinder, 225-pressing cylinder mounting block, 226-pressing return spring station; 30-material suction and transfer mechanism, 31-sleeve seat, 32-film feeding shaft, 33-rotation limit ring, 331-rotation limit stopper, 34-material taking cylinder, 35-material taking nozzle, 36-rotation connection block, 37-rotation cylinder, 38-rotation cylinder plate, 39-rotation film feeding stop rod; 40-Terminal unwinding machine; 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 pawl, 56-belt feeding anti-retraction mounting block, 57-belt feeding anti-retraction pawl, 58-pawl reset spring station, 59-belt feeding sensor, 510-belt feeding bottom slot plate, 5101-belt feeding slot, 511-belt feeding cover plate, 512-punching base, 5121-ejection spring slide, 513-belt feeding outlet block, 514-punching lower die, 5141-yield chip removal groove, 515-lower die ejection block, 516-lower die ejection slider, 517-ejection slide cover; 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 module, 661-pressing die spring station, 67-punching upper die, 68-pressing ejection block, 681-punching notch; 70-terminal transfer mechanism, 71-transfer insertion slide, 72-transfer insertion slider, 73-transfer insertion cylinder, 74-transfer insertion support, 75-terminal clamping slide, 76-terminal clamping cylinder, 77-insertion vertical adjustment screw, 78-clamping rack slide bar, 79-terminal clamping gear, 710-transfer insertion lower clamp, 7101-V-shaped clamping groove, 711-transfer insertion upper clamp, 712-insertion clamp movable block; 80-assembly positioning mechanism, 81-assembly station base, 82-pin station block, 821-pin station, 83-pin stopper, 84-pin positioning cylinder, 85-pin swinging pressure block, 86-pin pressing cylinder, 87-pin station sensor; 90-discharging mechanism, 91-assembly discharging bottom plate, 92-discharging guide rail slider pair, 93-discharging transverse movement cylinder, 94-transverse movement connecting support, 95-guide rod slide seat, 96-clamp seat plate, 97-discharging vertical movement cylinder, 98-clamping claw cylinder, 99-clamping clamp, 910-transverse movement limit screw; 100-chip resistor, 101-resistance chip, 102-terminal, 103-package shell; 110-display controller; 120-ceramic substrate; 130-Terminal tape, 131-Tape hole. DETAILED DESCRIPTION

[0019] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of 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.

[0020] like Figure 1 , 14 As shown in Figures 1 and 15, the chip resistor 100 involved in the embodiment of the present invention comprises a resistor 101, two terminals 102 and a packaging shell 103 covering the resistor 101. The terminals 102 can be automatically mass-produced by stamping, punching, etc. to form terminal strips 130, and the resistor 101 is obtained by printing, coating, sintering, and then scratching and cracking 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 101 manually.

[0021] Example 1

[0022] like Figure 1 , 2 As shown, an embodiment of the present invention provides an automatic assembly machine for double-terminal chip resistors, including an equipment body 10, a loading and degranulating mechanism 20, a suction and transfer mechanism 30, a belt feeding mechanism 50, a terminal punching mechanism 60, a terminal transfer mechanism 70, an assembly positioning mechanism 80, and a discharging mechanism 90, wherein the loading and degranulating mechanism 20 splits a ceramic substrate 120 into resistors, and the suction and transfer mechanism 30 places the resistor from one side to the pin position of the assembly positioning mechanism 80. The terminal transfer mechanism 70 is arranged corresponding to the front end of the pin station, and the tape feeding mechanism 50 is respectively arranged on both sides of the terminal transfer mechanism 70. The terminal material tape 130 on the terminal unwinding machine 40 is respectively transferred from both sides to between the terminal transfer mechanism 70 and the pin station, and is cut by the terminal punching mechanism 60 to form two terminals. The terminal transfer mechanism 70 assembles the two terminals to the resistor sheet of the pin station, and the discharging mechanism 90 removes the resistor sheet of the pin station from the other side for unloading.

[0023] Specifically, the equipment body 10 includes a main frame 11 and a table panel 12. The terminal unwinding machines 40 are respectively arranged on both sides of the main frame 11. The terminal material strip 130 passes through a plurality of feed guide wheels 14 from the terminal unwinding machine 40 and enters the tape feeding mechanism 50 on the table panel 12. It is cut by the terminal punching mechanism 60 between the two tape feeding mechanisms 50 to form two terminals. The two terminals are pushed to the pin station by the terminal transfer mechanism 70.

[0024] like Figure 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.

[0025] 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 .

[0026] 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.

[0027] Specifically, the limiting and clamping groove 291 is arranged on the upper side of the grain-disassembling connecting seat 29, and the grain-disassembling limiting blocks 218 are arranged on both sides of the limiting and clamping groove 291 respectively. A swing installation station groove 292 is arranged below the limiting and clamping groove 291, and the grain-disassembling swing block 210 is installed in the swing installation station groove 292 through the swing shaft 212.

[0028] Specifically, along the conveying direction of the ceramic substrate 120, one side of the disassembling station slot 2101 of the disassembling swing block 210 corresponds to the limiting pressing slot 291, and the other side is provided with a disassembling stopper 2102, and a chip removal slot 2105 is formed between the disassembling stoppers 2102. The chip removal slot 2105 is located at the front end of the ceramic substrate 120, and along with the conveying action, the debris generated by disassembling falls from the chip removal slot 2105 to the bottom of the mechanism.

[0029] Optionally, the disassembling swing block 210 is provided with swinging blocks 2104 at both ends perpendicular to the conveying direction of the ceramic substrate 120. The swinging blocks 2104 are used to avoid mutual interference with the disassembling connection seat 29 when the disassembling swing block 210 swings downward.

[0030] like Figure 3 , 5 As shown, a movable mounting groove 2103 is arranged between the grain-demolition swing block 210 and the swing seat plate 211, and the spring accommodating movable part 2131 of the grain-demolition movable block 213 cooperates with the movable mounting groove 2103, and a grain-demolition reset spring station 216 is arranged in the spring accommodating movable part 2131 for installing the grain-demolition reset spring.

[0031] like Figure 3 , 4 As shown, the pushing block cylinder 215 is set at the rear end of the swing seat plate 211 through the cylinder mounting block. The pushing block cylinder 215 extends out to push the grain-separating movable block 213 to combine with the grain-separating swing block 210. After the pushing block cylinder 215 contracts, the grain-separating return spring separates the grain-separating movable block 213 from the grain-separating swing block 210.

[0032] Specifically, the grain-detaching movable block 213 is provided with a grain-detaching positioning platform 2132 corresponding to the grain-detaching work station slot 2101, and the movable pressing block 214 is arranged on the upper part of the grain-detaching positioning platform 2132. When the grain-detaching movable block 213 is combined with the grain-detaching swing block 210, the movable pressing block 214 covers the front end of the scratched part of the ceramic substrate 120 and restricts it within the grain-detaching work station slot 2101.

[0033] Optionally, the disassembling positioning platform 2132 is further provided with a disassembling position sensor 220 corresponding to the disassembling station slot 2101. The disassembling position sensor 220 is a proximity switch or an induction optical fiber.

[0034] like Figure 3-5 As shown, along the conveying direction of the ceramic substrate 120, an extension portion is provided between the grain demolition station groove 2101 and the side of the grain demolition stop block 2102. When the grain demolition movable block 213 is combined with the grain demolition swing block 210, the movable pressing block 214 covers the front end of the first scratch portion of the ceramic substrate 120 and confines it within the grain demolition station groove 2101, and a gap is formed between the front end of the ceramic substrate 120 and the grain demolition stop block 2102.

[0035] like Figure 3 , 4 As shown, the swing cylinder 217 is fixed to the lower side of the grain-detaching connecting seat 29 through a cylinder mounting seat, and a swing arm 2111 is extended from the lower side of the swing seat plate 211. The swing cylinder 217 hits the swing arm 2111 to drive the grain-detaching swing block 210 to swing, so that the grain-detaching station groove 2101 of the grain-detaching swing block 210 swings downward and separates from the limiting clamping groove 291 of the grain-detaching connecting seat 29, and causes the ceramic substrate 120 to crack along the scratch portion at the grain-detaching position.

[0036] When in use, the swing cylinder 217 hits the swing arm 2111 to drive the grain-detaching swing block 210 to swing, and at the same time squeezes the grain-detaching reset spring. When the swing cylinder 217 contracts, the grain-detaching reset spring resets, so that the grain-detaching station groove 2101 of the grain-detaching swing block 210 is connected and combined with the limiting clamping groove 291 of the grain-detaching connecting seat 29.

[0037] Optionally, the grain stripping connection seat 29 is provided with a swing adjusting screw 219 in the swing mounting station slot 292 corresponding to the grain stripping swing block 210 or the swing seat plate 211 for adjusting the swing amplitude.

[0038] like Figure 3-5 As shown, one end of the grain-detaching and pressing swing arm 222 is hinged on the swing arm mounting block 223, and the swing arm mounting block 223 is fixed on the pressing support 221. A pressing cylinder 224 is arranged on the upper side corresponding to the grain-detaching and pressing swing arm 222. The pressing cylinder 224 is fixed to the pressing support 221 through a pressing cylinder mounting block 225. A pressing return spring station 226 is arranged between the pressing cylinder mounting block 225 and the grain-detaching and pressing swing arm 222 for installing a pressing return spring (not shown).

[0039] Initially, under the action of the pressing and returning spring, the pelletizing pressing swing arm 222 is away from the limiting pressing groove 291 of the pelletizing connecting seat 29. During pelletizing, the pressing cylinder 224 drives the pelletizing pressing swing arm 222 to swing downward and press and fix the ceramic substrate 120 in the limiting pressing groove 291. The pressing support 221 can be fixed to the table plate, the pelletizing connecting seat 29 or the end of the conveying seat plate.

[0040] like Figure 6 , 7 As shown, the material suction and transfer mechanism 30 includes a sleeve seat 31, a film feeding shaft 32 arranged in the sleeve seat 31, a material picking cylinder 34 is arranged at the upper end of the film feeding shaft 32, a material picking suction nozzle 35 is arranged at the working end of the material picking cylinder 34, and the lower end of the film feeding shaft 32 is connected to the rotary cylinder 37 through a rotating connecting block 36; a rotation limit ring 33 is arranged at the upper end of the sleeve seat 31, and a rotation limit block 331 is arranged on the rotation limit ring 33, so that the material picking suction nozzle 35 moves between the pelletizing station slot and the pin insertion station.

[0041] Optionally, a rotary cylinder plate 38 is installed on the rotary cylinder 37 , and a rotary sheet-feeding blocking rod 39 is provided on the lower side of the table panel 12 corresponding to the rotary cylinder plate 38 .

[0042] Initially, the ceramic substrate arrives at the grain demolition connecting seat under the transport of the conveyor belt assembly. Under the action of the grain demolition reset spring, the grain demolition station slot of the grain demolition swing block is connected and combined with the limiting clamping slot of the grain demolition connecting seat, and the pushing block cylinder is in a contracted state. Under the action of the grain demolition reset spring, the grain demolition movable block and the grain demolition swing block are in a separated state, and the movable pressing block deviates from the grain demolition station slot and is exposed directly above the grain demolition station slot.

[0043] First, the push block cylinder extends out and compresses the grain dismantling return spring, the grain dismantling movable block is combined with the grain dismantling swing block, and the movable pressing block covers the top of the grain dismantling station slot.

[0044] Secondly, when the ceramic substrate reaches the grain demolition station slot, the movable pressing block blocks the front end of the ceramic substrate, and the front end of the ceramic substrate is restricted in the grain demolition station slot, and a gap is formed between the front end of the ceramic substrate and the grain demolition stop block. After sensing that the front end of the ceramic substrate is in place, the clamping cylinder drives the grain demolition clamping swing arm to fix the ceramic substrate in the limited clamping slot, triggering the swinging cylinder to hit the swinging action arm of the swinging seat plate, so that the swinging seat plate, the grain demolition swing block, and the grain demolition movable block swing downward along the swing axis at the same time, and the ceramic substrate cracks along the scratch part at the connecting position of the grain demolition station slot and the limited clamping slot to form a resistor.

[0045] Then, under the action of the grain-stripping reset spring, the grain-stripping station slot of the grain-stripping swing block and the limiting pressing slot of the grain-stripping connecting seat are restored to be connected, the push block cylinder contracts, and under the action of the grain-stripping reset spring again, the grain-stripping movable block is separated from the grain-stripping swing block, and the movable pressing block deviates from the grain-stripping station slot, exposing the resistor on the grain-stripping station slot. After the push block cylinder contracts, the rotary cylinder works to make the material-taking suction nozzle reach the top of the grain-stripping station slot, and the material-taking cylinder contracts to make the suction nozzle move down to suck and transfer the resistor. Finally, after sensing that the resistor on the chip removal station slot has been moved, the clamping cylinder is reset to perform the next chip removal action. Due to the gap between the front end of the ceramic substrate and the chip removal block, the chipped resistor will not be clamped in the chip removal station slot, and the chip removal slot is conducive to the falling of debris.

[0046] like Figure 1 , 2 As shown in Figure 10, the belt feeding mechanism 50 includes a belt feeding support 51, a belt feeding adjustment plate 52 arranged on the belt feeding support 51, the belt feeding adjustment plate 52 drives the belt feeding adjustment block 54 through the belt feeding slide cylinder 53, and the belt feeding adjustment block 54 is hingedly provided with a belt feeding pawl 55, and a belt feeding bottom groove plate 510 is arranged on the lower side of the belt feeding pawl 55, and the belt feeding bottom groove plate 510 is arranged on a punching base 512. The material strip hole 131 on the terminal material strip 130 enables the terminal material strip 130 to be transferred to 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 material strip 130, the end of the punching base 512 is provided with a material strip feed outlet block 513 and a punching lower die 514, and the rear side of the terminal material strip 130 is attached to the material strip feed outlet block 513 to reach the punching station at the end of the punching lower die 514; A lower die ejection block 515 is provided at the front side of the punching lower die 514 corresponding to the punching station. The lower die ejection block 515 is arranged on the upper end of a lower die ejection slider 516. The lower die ejection slider 516 is arranged in the ejection spring slide groove 5121 of the punching base 512.

[0047] Optionally, an ejection slide slot cover 517 is provided corresponding to the ejection spring slide slot 5121 .

[0048] Optionally, at the punching station, a chip removal groove 5141 is provided on the punching lower die 514 and the punching base 512 , and a waste box 13 is correspondingly provided under the table panel 12 .

[0049] 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; 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.

[0050] 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.

[0051] like Figure 8 , 12As shown in FIG. 13 , the assembly positioning mechanism 80 is arranged at the front side of the punching station, and the terminal transfer mechanism 70 is arranged at the rear side. The terminal transfer mechanism 70 includes a transfer insertion slide 71 and a transfer insertion cylinder 73 arranged on the table panel 12. The transfer insertion cylinder 73 drives a transfer insertion slide 72 to reciprocate in the transfer insertion slide 71. A terminal clamping slide 75 is arranged on the transfer insertion slide 72 through a transfer insertion support 74. A terminal clamping gear 79 is arranged in the terminal clamping slide 75. And a group of clamping rack slides 78, the upper ends of the clamping rack slides 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 slides 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 position of the terminals on the punching stations on both sides from the vertical direction, and after the two terminals are cut off from the terminal strip 130, they are inserted into the resistor sheet electrode position on the pin station through the transfer and insertion slider 72.

[0052] Optionally, the transfer and insertion slide 71 is provided with an insertion vertical adjustment screw 77 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 central insertion position of the resistor.

[0053] Optionally, V-shaped clamping grooves 7101 are provided on both sides of the transfer and insertion lower clamp 710 for positioning the clamping position of the terminal; and 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, the two terminals are clamped adaptively 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 heights of the upper surfaces of the two terminals are inconsistent, 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 in the horizontal direction in the transfer and insertion upper clamp to clamp the other terminal.

[0054] like Figure 6 , 7 As shown in Figure 9, the assembly positioning mechanism 80 includes an assembly station base 81, a pin station block 82 is provided at the upper end of the assembly station base 81, the pin station 821 is provided on the pin station block 82, pin stoppers 83 and pin positioning cylinders 84 are provided on both sides of the pin station 821, a pin swinging pressure block 85 is provided on the rear side of the pin station 821, and the pin swinging pressure block 85 is hingedly provided on the assembly station base 81 and driven to swing by a pin clamping cylinder 86.

[0055] Optionally, a pin position sensor 87 is provided on the pin position block 82 corresponding to the pin position 821 .

[0056] like 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.

[0057] Optionally, transverse limit screws 910 are respectively provided on both sides of the transverse connection support 94 .

[0058] 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.

[0059] 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.

[0060] 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.

[0061] Repeat the above steps to carry out the next assembly.

[0062] like Figure 1 ,2 As shown, the dual-terminal chip resistor automatic assembly machine also includes a display controller 110, which is electrically connected to the material loading and disassembling mechanism 20, the material suction and transfer mechanism 30, the terminal unwinding machine 40, the tape feeding mechanism 50, the terminal punching mechanism 60, the terminal transfer mechanism 70, the assembly positioning mechanism 80 and the material discharging mechanism 90. The equipment body 10 also includes an air source system, a pneumatic control component, an electromagnetic control valve group, etc., which are existing market-purchased components and are not described in detail.

[0063] The automatic assembly machine for dual-terminal chip resistors in the embodiment of the present invention automatically loads and splits the ceramic substrate into pieces through a loading and degranulating mechanism to obtain a resistor sheet, and simultaneously automatically loads and punches a group of terminals through a belt feeding mechanism and a terminal punching mechanism in cooperation, and then transfers the resistor sheet and the terminal to the pin station of the assembly positioning mechanism for automatic assembly through a material suction transfer mechanism and a terminal transfer mechanism; the automatic loading, processing and assembly of the resistor sheet and the terminal in the dual-terminal chip resistor is realized, and the structure is compact and the production efficiency is high.

[0064] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A dual-terminal chip resistor automatic assembly machine, characterized in that: The utility model 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. 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.

2. The double-terminal chip resistor automatic assembly machine according to claim 1, characterized in that: The equipment body includes 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 feed 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. The two terminals are pushed to the pin station by the terminal transfer mechanism.

3. The automatic assembly machine for double-terminal chip resistors according to claim 2, 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.

4. The double-terminal chip resistor automatic assembly machine 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.

5. The automatic assembly machine for double-terminal chip resistors according to claim 2, characterized in that: 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 ejection block is arranged at the front side of the punching lower die corresponding to the punching station, the lower die ejection block is arranged at the upper end of a lower die ejection slide block, and the lower die ejection slide block is arranged in the ejection spring slide groove of the punching base.

6. The automatic assembly machine for double-terminal chip resistors according to claim 5, characterized in that: 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.

7. The automatic assembly machine for double-terminal chip resistors according to claim 5, 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.

8. The automatic assembly machine for double-terminal chip resistors according to claim 7, 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.

9. The automatic assembly machine for double-terminal chip resistors according to claim 2, 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.

10. The automatic assembly machine for double-terminal chip resistors according to claim 2, 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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