Novel pin forming method and device of box type capacitor

Abstract

The invention discloses a novel pin forming method and device of a box type capacitor, and relates to the technical field of capacitors. A novel pin forming mode of a box-type capacitor comprises the steps that S1, the two sides of a shell are clamped and fixed in the width direction; s2, limiting the near-end part, close to the shell, of the lead; and S3, applying force in the length direction of the shell to the far-end part, far away from the shell, of the lead, so that the lead is of an L-shaped structure. A conventional vertical forming mode of the box-type capacitor is changed into a bending horizontal forming mode, so that the problem that part of capacitors are too high, the subsequent installation space is affected after the part of capacitors are inserted into a PCB, and actual use of customers is not facilitated is solved. In this way, the requirement of customers for the special installation size can be met, and under the condition that the product quality is guaranteed, the machine also has high operability.

Description

Technical Field

[0001] The invention relates to the technical field of box-type capacitors, and in particular to a novel pin forming method and device for box-type capacitors. Background Art

[0002] Box capacitors are a type of capacitor that usually has a closed box or housing with capacitive elements inside. Their appearance usually looks like a small box, hence the name "box capacitor". The main features of this type of capacitor are compact structure and strong protection, which can effectively avoid the influence of the external environment on its performance.

[0003] At present, the commonly used lead forming methods for box capacitors are as follows: Figure 1 As shown, Figure 1 From left to right in the figure are the "CK", "CC" and "CY" molding methods, where 01 is the shell with a core inside, and 02 is the lead. However, the volume of general box-type capacitors is limited, and the height of some capacitors is too high, which affects the subsequent installation space after being inserted into the PCB board, which is not conducive to actual use by customers. Summary of the invention

[0004] The object of the present invention is to provide a novel pin forming method and device for a box capacitor with reduced height and meeting the special installation size requirements of customers.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows.

[0006] A novel lead forming method for a box capacitor, comprising:

[0007] S1. Clamp and fix both sides of the shell in the width direction;

[0008] S2, limiting the proximal end of the lead wire close to the housing;

[0009] S3. Apply force in the length direction of the shell to the distal end of the lead away from the shell, so that the lead has an L-shaped structure.

[0010] It can be seen that by changing the conventional vertical forming method of box-type capacitors to a horizontal bending forming method, the problem that some capacitors are too high, which affects the subsequent installation space after being inserted into the PCB board, is solved, which is not conducive to the actual use of customers. This method can ensure that customers' needs for special installation dimensions are met, and the machine has strong operability while ensuring product quality.

[0011] The present invention also provides a novel pin forming device for a box-type capacitor, comprising a base, a rotating ring is rotatably mounted on the upper surface of the base, a driving mechanism capable of driving the rotating ring to rotate is arranged on the upper surface of the base, four shaping blocks are coaxially arrayed on the upper surface of the rotating ring, a placement groove is provided on the outer surface of the shaping block, two mutually parallel limiting grooves are provided on the outer surface of the shaping block, and the limiting groove is connected to the placement groove. An L-shaped plate is mounted on the upper surface of the base, a first electric push rod is mounted on the top of the L-shaped plate, a mounting block is mounted on the end of the telescopic end of the first electric push rod, and a bending mechanism is arranged on the lower surface of the mounting block. A clamping mechanism is arranged on the upper surface of the base.

[0012] The shell is placed in the placement groove, and its two leads pass through the two limit grooves respectively, and then the driving mechanism drives the rotating ring to rotate, and the shell is rotated to the processing station. At this time, the first electric push rod is started, and its telescopic end drives the mounting block to descend. At the same time, through the setting of the clamping mechanism, the clamping and fixing of both sides of the shell width direction can be achieved synchronously, and the limit groove limits the proximal end of the lead to ensure that it is not affected by bending. Then the bending mechanism simultaneously applies force in the length direction of the shell to the distal end of the two leads, so that the lead is L-shaped, thereby completing the processing; and through the setting of four shaping blocks and the driving mechanism, the picking operation of other shells can be solved during the processing and forming process, and the processing operation will not be interrupted due to the picking operation, ensuring the smooth continuity of the entire operation without interruption, thereby improving the working efficiency, and through the setting of the clamping mechanism, the shell can be automatically fixed during the processing and forming process, which not only improves the processing accuracy, but also reduces the tedious operation of workers fixing alone, reduces the labor intensity of workers and further improves the working efficiency.

[0013] Furthermore, the driving mechanism includes two side plates installed on the upper surface of the base, a worm is rotatably connected between the two side plates, a worm wheel is installed on the outer surface of the rotating ring, and the worm wheel is meshingly connected with the worm, a first servo motor is installed on the outer surface of one of the side plates, and the output shaft of the first servo motor is connected to the worm.

[0014] When the first servo motor is started, its output shaft drives the worm to rotate. Since the worm and the worm wheel are meshed with each other, the rotating ring can be driven to rotate. By controlling the rotating ring to rotate 90 degrees each time, the shaping block can be driven to be directly below the bending mechanism for processing after each rotation.

[0015] Furthermore, the bending mechanism includes a screw having a pair of reverse threads rotatably mounted inside the mounting block, nut seats are installed on the two reverse threads of the screw, a connecting rod is connected to the lower surface of the nut seat, a forming wheel is installed at the bottom of the connecting rod, a second servo motor is installed on the outer surface of the mounting block, and the output shaft of the second servo motor is connected to the screw.

[0016] When the first electric push rod drives the mounting block to descend and presses the two forming wheels against the upper surface of the forming block, the two forming wheels are located on the inner sides of the two leads. Then the second servo motor is started, and its output shaft drives the screw to rotate. Due to the setting of the reverse thread, the two nut seats are separated from each other, and through the connecting action of the connecting rod, the forming wheels are driven to roll on the upper surface of the forming block and the distal end of the lead is bent, thereby achieving the purpose of processing and forming.

[0017] Furthermore, the clamping mechanism includes two groups of fixed blocks installed on the upper surface of the base, each group of fixed blocks has two fixed blocks, a sliding rod is connected between the opposite surfaces of each group of fixed blocks, a sliding block is slidably installed on the outer surface of the sliding rod, a spring is sleeved on the outer surface of the sliding rod, and the two ends of the spring are respectively abutted against the sliding block and the fixed block, a clamping block is installed between the two sliders, the outer surface of the clamping block is provided with an inclined surface, and a wedge-shaped extrusion plate is installed on the outer surface of the mounting block, and the wedge-shaped extrusion plate corresponds to the inclined surface.

[0018] When the first electric push rod drives the mounting block to descend, the mounting block drives the wedge-shaped extrusion plate to press downward on the outer surface of the inclined surface. Through the mutual extrusion of the two, the clamping block can be driven to move in the direction of the shaping block, and the slider can slide on the outer surface of the slide rod to compress the spring. At this time, the clamping block is pressed against the side surface of the shell, and the purpose of clamping and fixing is achieved through the interaction with the inner wall of the placement groove, which not only improves the processing accuracy, but also reduces the tedious operation of workers to fix it separately, reduces the labor intensity of workers and further improves the working efficiency.

[0019] Furthermore, a vertical plate is installed on the upper surface of the base and located on the inner side of the rotating ring, a second electric push rod is installed on the outer surface of the vertical plate, a push block is installed at the end of the telescopic end of the second electric push rod, and a through groove is opened on the inner wall of the placement groove.

[0020] When the processed box capacitor is driven by the driving mechanism to rotate to the front of the second electric push rod, the second electric push rod can be started, and its telescopic end drives the push block to extend outward, and passes through the through groove to push out the shell in the placement groove, thereby achieving the purpose of automatic unloading, reducing manual operation and improving work efficiency.

[0021] Furthermore, a guide groove is provided on the outer surface of the base, and the guide groove is arranged in the extension and retraction direction of the second electric push rod.

[0022] By setting the guide groove, the pushed-out shell can be guided so that it can slide down along the guide groove. The purpose of automatic collection can be achieved by simply arranging a material receiving box (not shown in the figure) below the guide groove.

[0023] Furthermore, rubber pads are provided on the inner wall of the placement groove and the end of the clamping block.

[0024] The rubber pad can play a buffering role when the shell is clamped and fixed, thereby reducing the impact force and pressure injury caused to it. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a molding method for box capacitor leads in the prior art.

[0026] Figure 2 This is the molding method of the box capacitor lead of the present invention.

[0027] Figure 3 This is one of the structural schematic diagrams of the pin forming device of the present invention.

[0028] Figure 4 This is the second structural schematic diagram of the pin forming device of the present invention.

[0029] Figure 5 It is a front view structural schematic diagram of the pin forming device of the present invention;

[0030] Figure 6 It is a structural schematic diagram of a shaping block of the present invention;

[0031] Figure 7 It is a structural schematic diagram of the clamping mechanism in the pin forming device of the present invention;

[0032] Figure 8 It is a structural schematic diagram of the bending mechanism in the pin forming device of the present invention.

[0033] In the figure: 01, housing; 02, lead wire; 100, base; 101, rotating ring; 102, shaping block; 103, placement groove; 104, limit groove; 105, L-shaped plate; 106, first electric push rod; 107, mounting block; 200, driving mechanism; 201, side plate; 202, worm; 203, first servo motor; 204, worm wheel; 300, bending mechanism; 301, screw ; 302, nut seat; 303, connecting rod; 304, shaping wheel; 305, second servo motor; 400, clamping mechanism; 401, fixed block; 402, sliding rod; 403, sliding block; 404, spring; 405, clamping block; 406, inclined plane; 407, wedge-shaped extrusion plate; 500, vertical plate; 501, second electric push rod; 502, push block; 503, through groove; 600, guide groove. DETAILED DESCRIPTION

[0034] The present invention is described in detail below with reference to the accompanying drawings.

[0035] like Figure 1-8 As shown, a new pin forming method for a box capacitor includes:

[0036] S1. Clamp and fix both sides of the housing 01 in the width direction;

[0037] S2, limiting the proximal end of the lead wire 02 close to the housing 01;

[0038] S3. Apply force in the length direction of the housing 01 to the distal end of the lead 02 away from the housing 01, so that the lead 02 has an L-shaped structure.

[0039] By changing the conventional vertical molding method of the shell 01 to a horizontal bending molding method, the problem that some capacitors are too high and affect the subsequent installation space after being inserted into the PCB board is solved, which is not conducive to the actual use of customers. This method can ensure that customers' needs for special installation dimensions are met. While ensuring product quality, the machine also has strong operability; Shell 01 uses the toughest engineering thermoplastic material PBT, which is a semi-crystalline material with very good chemical stability, mechanical strength, electrical insulation properties and thermal stability. During molding, the retained proximal length is 2mm.

[0040] The present invention also provides a novel pin forming device for a box capacitor, comprising a base 100, a rotating ring 101 is rotatably mounted on the upper surface of the base 100, a driving mechanism 200 capable of driving the rotating ring 101 to rotate is arranged on the upper surface of the base 100, four shaping blocks 102 are coaxially arrayed on the upper surface of the rotating ring 101, a placement groove 103 is provided on the outer surface of the shaping block 102, two mutually parallel limiting grooves 104 are provided on the outer surface of the shaping block 102, and the limiting grooves 104 are connected to the placement groove 103. An L-shaped plate 105 is mounted on the upper surface of the base 100, a first electric push rod 106 is mounted on the top of the L-shaped plate 105, a mounting block 107 is mounted on the end of the telescopic end of the first electric push rod 106, and a bending mechanism 300 is arranged on the lower surface of the mounting block 107. The upper surface of the base 100 is provided with a clamping mechanism 400, the shell 01 is placed in the placement groove 103, and the two lead wires 02 are respectively passed through the two limit grooves 104, and then the driving mechanism 200 drives the rotating ring 101 to rotate, and the shell 01 is rotated to the processing station. At this time, the first electric push rod 106 is started, and its telescopic end drives the mounting block 107 to descend. At the same time, through the setting of the clamping mechanism 400, the clamping and fixing of both sides of the width direction of the shell 01 can be synchronously achieved, and the limit groove 104 limits the proximal end of the lead wire 02 to ensure that it is not affected by bending, and then the bending mechanism 300 is used to fix the two lead wires 02. The distal part simultaneously applies force in the length direction of the shell 01, so that the lead 02 is L-shaped, thereby completing the processing; and through the setting of four shaping blocks 102 and the driving mechanism 200, the picking operation of other shells 01 can be solved during the processing and forming process, and the processing operation will not be interrupted due to the picking operation, thereby ensuring the smooth continuity of the entire operation without interruption, thereby improving the working efficiency, and through the setting of the clamping mechanism 400, the shell 01 can be automatically fixed during the processing and forming process, which not only improves the processing accuracy, but also reduces the tedious operation of workers to fix it separately, reduces the labor intensity of workers and further improves the working efficiency.

[0041] Specifically, the driving mechanism 200 includes two side plates 201 installed on the upper surface of the base 100, and a worm 202 is rotatably connected between the two side plates 201. A worm wheel 204 is installed on the outer surface of the rotating ring 101, and the worm wheel 204 is meshed with the worm 202. A first servo motor 203 is installed on the outer surface of one of the side plates 201, and the output shaft of the first servo motor 203 is connected to the worm 202. When the first servo motor 203 is started, its output shaft drives the worm 202 to rotate. Since the worm 202 and the worm wheel 204 are meshed with each other, the rotating ring 101 can be driven to rotate. By controlling the rotating ring 101 to rotate 90 degrees each time, after each rotation, the shaping block 102 can be driven to be processed directly below the bending mechanism 300.

[0042] Specifically, the bending mechanism 300 includes a screw rod 301 having a pair of reverse threads rotatably mounted inside the mounting block 107, a nut seat 302 is mounted on both reverse threads of the screw rod 301, a connecting rod 303 is connected to the lower surface of the nut seat 302, a shaping wheel 304 is mounted on the bottom of the connecting rod 303, a second servo motor 305 is mounted on the outer surface of the mounting block 107, and the output shaft of the second servo motor 305 is connected to the screw rod 301. When the first electric push rod 106 drives the mounting block 107, the second servo motor 305 is connected to the screw rod 301. 07 descends and presses the two shaping wheels 304 against the upper surface of the shaping block 102. At this time, the two shaping wheels 304 are located on the inner side of the two leads 02. Then the second servo motor 305 is started, and its output shaft drives the screw 301 to rotate. Due to the setting of the reverse thread, the two nut seats 302 move away from each other, and through the connecting action of the connecting rod 303, the shaping wheels 304 are driven to roll on the upper surface of the shaping block 102, and the distal end of the lead 02 is bent, thereby achieving the purpose of processing and forming.

[0043] Specifically, the clamping mechanism 400 includes two groups of fixed blocks 401 installed on the upper surface of the base 100, each group of fixed blocks 401 has two, a slide bar 402 is connected between the opposite surfaces of each group of fixed blocks 401, a slider 403 is slidably installed on the outer surface of the slide bar 402, a spring 404 is sleeved on the outer surface of the slide bar 402, and the two ends of the spring 404 are respectively abutted against the slider 403 and the fixed block 401, a clamping block 405 is installed between the two sliders 403, and the outer surface of the clamping block 405 is provided with an inclined surface 406, and the outer surface of the mounting block 107 is installed with a wedge-shaped extrusion plate 407, and the wedge-shaped extrusion plate 407 and the inclined surface 406 are connected. Correspondingly, when the first electric push rod 106 drives the mounting block 107 to descend, the mounting block 107 drives the wedge-shaped extrusion plate 407 to press downward on the outer surface of the inclined surface 406. Through the mutual extrusion of the two, the clamping block 405 can be driven to move in the direction of the shaping block 102, and the slider 403 slides on the outer surface of the slide rod 402 to compress the spring 404. At this time, the clamping block 405 is pressed against the side surface of the shell 01, and the purpose of clamping and fixing is achieved through the interaction with the inner wall of the placement groove 103, which not only improves the processing accuracy, but also reduces the tedious operation of workers to fix separately, reduces the labor intensity of workers and further improves the working efficiency.

[0044] Specifically, a vertical plate 500 is installed on the upper surface of the base 100 and located on the inner side of the rotating ring 101, and a second electric push rod 501 is installed on the outer surface of the vertical plate 500. A push block 502 is installed at the end of the telescopic end of the second electric push rod 501. A through groove 503 is opened on the inner wall of the placement groove 103. When the processed and formed box-type capacitor is driven by the driving mechanism 200 to rotate to the front of the second electric push rod 501, the second electric push rod 501 can be started, and its telescopic end drives the push block 502 to extend outward, and passes through the through groove 503 to push out the shell 01 in the placement groove 103, thereby achieving the purpose of automatic unloading, reducing manual operation and improving work efficiency.

[0045] Specifically, a guide groove 600 is provided on the outer surface of the base 100, and the guide groove 600 is arranged in the extension direction of the second electric push rod 501. Through the setting of the guide groove 600, the pushed out shell 01 can be guided so that it can slide down along the guide groove 600. It only needs to arrange a material receiving box (not shown in the figure) under the guide groove 600 to achieve the purpose of automatic collection.

[0046] Specifically, rubber pads are provided on the inner wall of the placement groove 103 and the end of the clamping block 405. The rubber pads can play a buffering role when the shell 01 is clamped and fixed, thereby reducing the impact force and pressure injury caused to it.

[0047] The above is a detailed description of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation methods of the present invention are limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, making several equivalent substitutions or obvious modifications without departing from the concept of the present invention, and having the same performance or use, should be regarded as belonging to the patent protection scope of the present invention determined by the submitted claims.

Claims

1. A novel pin forming method for a box capacitor, characterized in that: include: S1. Clamp and fix both sides of the housing (01) in the width direction; S2, limiting the proximal end portion of the lead wire (02) close to the housing (01); S3. Apply force in the length direction of the housing (01) to the distal end of the lead (02) away from the housing (01), so that the lead (02) has an L-shaped structure.

2. A novel pin forming device for a box capacitor, comprising a base (100), characterized in that: A rotating ring (101) is rotatably mounted on the upper surface of the base (100); a driving mechanism (200) capable of driving the rotating ring (101) to rotate is arranged on the upper surface of the base (100); four shaping blocks (102) are coaxially arrayed on the upper surface of the rotating ring (101); a placement groove (103) is provided on the outer surface of the shaping block (102); two mutually parallel limiting grooves (104) are provided on the outer surface of the shaping block (102); and the limiting groove (104) is communicated with the placement groove (103); An L-shaped plate (105) is installed on the upper surface of the base (100), a first electric push rod (106) is installed on the top of the L-shaped plate (105), a mounting block (107) is installed at the end of the telescopic end of the first electric push rod (106), and a bending mechanism (300) is provided on the lower surface of the mounting block (107); A clamping mechanism (400) is provided on the upper surface of the base (100).

3. The novel pin forming device for a box capacitor according to claim 2 is characterized in that: The driving mechanism (200) comprises two side plates (201) mounted on the upper surface of the base (100); a worm (202) is rotatably connected between the two side plates (201); a worm wheel (204) is mounted on the outer surface of the rotating ring (101); and the worm wheel (204) is meshingly connected with the worm (202); a first servo motor (203) is mounted on the outer surface of one of the side plates (201); and an output shaft of the first servo motor (203) is connected to the worm (202).

4. The novel pin forming device for a box capacitor according to claim 3 is characterized in that: The bending mechanism (300) comprises a screw rod (301) having a pair of reverse threads rotatably mounted inside the mounting block (107), a nut seat (302) being mounted on both reverse threads of the screw rod (301), a connecting rod (303) being connected to the lower surface of the nut seat (302), a shaping wheel (304) being mounted on the bottom of the connecting rod (303), a second servo motor (305) being mounted on the outer surface of the mounting block (107), and an output shaft of the second servo motor (305) being connected to the screw rod (301).

5. The novel pin forming device for a box capacitor according to claim 4 is characterized in that: The clamping mechanism (400) comprises two groups of fixed blocks (401) mounted on the upper surface of the base (100), each group of the fixed blocks (401) comprises two fixed blocks, a sliding rod (402) is connected between the opposite surfaces of each group of the fixed blocks (401), a sliding block (403) is slidably mounted on the outer surface of the sliding rod (402), a spring (404) is sleeved on the outer surface of the sliding rod (402), and the two ends of the spring (404) are respectively in contact with the sliding block (403) and the fixed block (401), a clamping block (405) is mounted between the two sliding blocks (403), the outer surface of the clamping block (405) is provided with an inclined surface (406), and a wedge-shaped extrusion plate (407) is mounted on the outer surface of the mounting block (107), and the wedge-shaped extrusion plate (407) corresponds to the inclined surface (406).

6. The novel pin forming device for a box capacitor according to claim 5 is characterized in that: A vertical plate (500) is installed on the upper surface of the base (100) and located on the inner side of the rotating ring (101); a second electric push rod (501) is installed on the outer surface of the vertical plate (500); a push block (502) is installed at the end of the telescopic end of the second electric push rod (501); and a through groove (503) is opened on the inner wall of the placement groove (103).

7. The novel pin forming device for a box capacitor according to claim 6 is characterized in that: A guide groove (600) is provided on the outer surface of the base (100), and the guide groove (600) is arranged in the extension and retraction direction of the second electric push rod (501).

8. The novel pin forming device for a box capacitor according to claim 5 is characterized in that: The inner wall of the placement groove (103) and the end of the clamping block (405) are both provided with rubber pads.

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