Inductance coil pin bending production line

Abstract

The invention discloses an inductance coil pin bending production line. Comprising a positioning jig, a first jig carrying mechanism, a second jig carrying mechanism and a third jig carrying mechanism, the pin bending and cutting mechanism is used for bending the extending parts at the two ends of the coil pin downwards by 90 degrees to enable the extending parts to be close to the side face of a coil framework, then bending the extending parts forwards by 90 degrees to enable the extending parts to be close to the bottom face of the coil framework and then cutting the pins; the pin pre-bending mechanism is used for pre-bending the cut pins at the two ends of the coil pin; the top pin bending mechanism is used for bending the pre-bent pins at the two ends of the coil pin; and the positioning jig is provided with a plurality of avoiding grooves which are respectively communicated with the corresponding product discharging grooves and are used for avoiding bending positions of the coil pin. According to the automatic pin bending and pin cutting machine, automatic pin bending and pin cutting operation of the inductance coil can be achieved, all the mechanisms are coordinated in action, the automation degree is high, continuity is good, the precision of bending and pin cutting of the inductance coil is guaranteed, manual operation is replaced, and the production efficiency and the product quality are improved.

Description

Technical Field

[0001] The invention relates to the technical field of inductor coil production, and more specifically to an inductor coil bending production line. Background Art

[0002] A coil usually refers to a ring-shaped wire winding, which is formed by winding the wire in a specific winding method. It is often used in various electronic components (such as inductors, etc.). After the coil is wound, the pins at both ends of the coil need to be extended to an appropriate length during production to facilitate subsequent cutting and bending. However, most of the current inductor coil production lines use manual cutting and bending, which is troublesome and time-consuming, and has low work efficiency. Manual operation will inevitably introduce human errors, resulting in inconsistent cutting and bending angles of the coil pins, increasing product defective rates, and making it difficult to ensure production quality. Summary of the invention

[0003] The purpose of the present invention is to overcome the above-mentioned defects in the prior art and to provide an inductor leg bending production line which can realize automatic leg folding and cutting operations of inductor coils, has a high degree of automation, replaces manual operation, has good continuity and high production efficiency.

[0004] To achieve the above-mentioned purpose, the present invention provides an inductor coil bending foot production line, including a positioning fixture for placing the inductor coil, a first fixture carrier mechanism, a second fixture carrier mechanism, a third fixture carrier mechanism, a bending and cutting foot mechanism for first bending the extended parts of the coil pins at both ends downward by 90° so that they are close to the side of the coil skeleton and then bending them forward by 90° so that they are close to the bottom surface of the coil skeleton before cutting the feet, a pre-folding foot mechanism for pre-folding the cut feet at both ends of the coil pins, and a folding foot mechanism for bending the pre-folded feet at both ends of the coil pins. The positioning fixture is provided with a plurality of avoidance grooves for bending the coil pins, which are respectively connected to the corresponding product discharge grooves. The bending and cutting foot mechanism, the pre-folding foot mechanism and the folding foot mechanism are respectively and correspondingly arranged at the first The upper and lower sides of the jig carrier mechanism, the second jig carrier mechanism and the third jig carrier mechanism, two first clamping robots are movably provided on both sides of the upper part of the first jig carrier mechanism, and the first clamping robots can drive the positioning jig on the loading conveyor line to be transferred to the first jig carrier mechanism and the first transfer conveyor line; two second clamping robots are movably provided on both sides of the upper part of the second jig carrier mechanism, and the second clamping robots can drive the positioning jig on the first transfer conveyor line to be transferred to the second jig carrier mechanism and the second transfer conveyor line; two third clamping robots are movably provided on both sides of the upper part of the third jig carrier mechanism, and the third clamping robots can drive the positioning jig on the loading conveyor line to be transferred to the third jig carrier mechanism and the unloading conveyor line.

[0005] Compared with the prior art, the present invention has the following beneficial effects:

[0006] The present invention has a novel structure and a reasonable design. By first bending the protruding parts of the coil pins at both ends downward by 90° and then bending them forward by 90° so that they are close to the side and bottom surfaces of the coil frame, it is possible to realize automated folding operations as well as automated operations such as automated cutting, pre-folding and top folding. The movements of various mechanisms are coordinated and continuous, thus ensuring the accuracy of the bending and cutting of the inductor coil, replacing manual operations, improving production efficiency and product quality, and meeting the large-scale production needs of enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is a schematic diagram of the structure provided by the embodiment of the present invention. Figure 1 ;

[0008] Figure 2 This is a schematic diagram of the structure provided by the embodiment of the present invention. Figure 2 ;

[0009] Figure 3 is a schematic diagram of the structure of a positioning fixture provided by an embodiment of the present invention;

[0010] Figure 4 is a schematic structural diagram of a conveyor line provided by an embodiment of the present invention;

[0011] Figure 5 It is a structural schematic diagram of a material clamping robot provided by an embodiment of the present invention;

[0012] Figure 6 is a structural schematic diagram of a jig transport mechanism provided by an embodiment of the present invention;

[0013] Figure 7 is a structural schematic diagram of a bending and cutting foot mechanism provided in an embodiment of the present invention;

[0014] Figure 8 is an enlarged schematic diagram of a bending and cutting foot mechanism provided in an embodiment of the present invention;

[0015] Fig. 9 is a cross-sectional schematic diagram of a bending and cutting foot mechanism provided by an embodiment of the present invention;

[0016] Fig.10 is a structural schematic diagram of a pre-folding leg mechanism provided by an embodiment of the present invention;

[0017] Fig.11 is an enlarged schematic diagram of a pre-folding foot mechanism provided in an embodiment of the present invention;

[0018] Fig.12 is a cross-sectional schematic diagram of a pre-folding leg mechanism provided by an embodiment of the present invention;

[0019] Fig.13 is a schematic structural diagram of a folding top foot mechanism provided in an embodiment of the present invention;

[0020] Fig.14 is an enlarged schematic diagram of a folding top foot mechanism provided in an embodiment of the present invention;

[0021] Fig.15 is a cross-sectional schematic diagram of a folding top foot mechanism provided in an embodiment of the present invention;

[0022] Fig.16 The present invention is a schematic diagram of a process of folding and cutting the legs of an inductor provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0023] Please refer to Figure 1 and Figure 2 The embodiment of the present invention provides an inductor coil bending production line, including a positioning fixture 10 for placing the inductor coil, a loading conveyor line 11, a first transfer conveyor line 12, a second transfer conveyor line 13, a unloading conveyor line 14, a first fixture carrier 21, a second fixture carrier 22, a third fixture carrier 23, a bending and cutting mechanism 3 for first bending the two ends of the coil pin downward by 90° so that they are close to the side of the coil skeleton and then bending forward by 90° so that they are close to the bottom surface of the coil skeleton before cutting the pins, a pre-folding mechanism 4 for pre-folding the cut pins at both ends of the coil pins, and a folding top mechanism 5 for bending the pre-folded pins at both ends of the coil pins. The following is a detailed description of each component of this embodiment in conjunction with the drawings.

[0024] In this embodiment, the bending and cutting mechanism 3 can be arranged on the upper and lower sides of the first jig carrier 21, and two first clamping manipulators 24 can be movably arranged on both sides of the upper part of the first jig carrier 21. The first clamping manipulator 24 can drive the positioning jig 10 on the feeding conveyor line 11 to be transferred to the first jig carrier 21 and the first transfer conveyor line 12. The pre-folding mechanism 4 is arranged on the upper and lower sides of the second jig carrier 22, and two second clamping manipulators 24 can be movably arranged on both sides of the upper part of the second jig carrier 22. The material robot 25, the second material clamping robot 25 can drive the positioning fixture 10 on the first transfer conveyor line 12 to be transferred to the second fixture carrier 22 and the second transfer conveyor line 13, the folding foot mechanism 5 is arranged on the upper and lower sides of the third fixture carrier 23, and two third material clamping robots 26 are movably arranged on both sides above the third fixture carrier 23. The third material clamping robot 26 can drive the positioning fixture 10 on the loading conveyor line 11 to be transferred to the third fixture carrier 23 and the unloading conveyor line 14.

[0025] Specifically, the loading conveyor line 11, the first transfer conveyor line 12, the second transfer conveyor line 13, and the unloading conveyor line 14 are double-line flat belt conveyor lines composed of two parallel and spaced belts.

[0026] like Figure 3 As shown, the positioning fixture 10 may be provided with a plurality of avoidance grooves 101 for avoiding bending of coil pins, which are respectively connected to the corresponding product discharge grooves, and both sides of the positioning fixture 10 are provided with clamping grooves 102 for clamping or positioning.

[0027] like Figure 4 As shown, preferably, the loading conveyor line 11, the first transfer conveyor line 12, the second transfer conveyor line 13, and the unloading conveyor line 14 are all provided with a jig positioning device 6 for braking the positioning jig 10, and each jig positioning device 6 includes a jig positioning cylinder 61 and a brake shaft 62, and the output part of the positioning cylinder 61 is transmission-connected with the brake shaft 62. When the positioning jig 10 moves to the top of the jig positioning device 6, the jig positioning cylinder 61 drives the brake shaft 62 to move upward to the clamping groove 102 on one side of the positioning jig 10 to brake it.

[0028] like Figure 6 As shown, the first fixture carrier 21, the second fixture carrier 22 and the third fixture carrier 23 have the same structure and can include a frame 201, two guide rails 202, two guide blocks 203, a guide rail mounting seat 204, a support 205, a first linear module 206, a fixture carrier plate 207, and a positioning cylinder 208 for tightening and limiting the positioning fixture 10. The guide rail mounting seat 204 is horizontally arranged on the top surface of the frame 201, the first linear module 206 is parallelly arranged on one side of the guide rail mounting seat 204 through the support 205, and the two guide rails 202 are respectively fixedly arranged It is arranged on both sides of the top surface of the guide rail mounting seat 204, and a through groove is opened in the middle of the guide rail mounting seat 204. Both sides of the bottom surface of the jig carrier 207 are slidably connected with the corresponding guide rails 202 through the guide blocks 203. One side of the jig carrier 207 is transmission-connected with the translation part of the first linear module 206. The first linear module 206 can drive the jig carrier 207 to move back and forth on the guide rail 202. Limit blocks 2071 are respectively protruded at both ends of one side of the top surface of the jig carrier 207, and the positioning cylinder 208 is fixed to the other side of the top surface of the jig carrier 207 in the direction of the limit block.

[0029] like Figure 7As shown, the bending and foot cutting mechanism 3 may include two first brackets 31, a bending upper punch device 32, a first clamping device 33, a bending horizontal pushing device 34, an upper foot cutting device 35 and a lower foot cutting device 36. The two first brackets 31 are respectively and parallelly arranged on both sides above the first fixture carrier 21. The bending upper punch device 32, the first clamping device 33 and the upper foot cutting device 35 are all fixedly arranged on the back side of one of the first brackets 31 and located above the middle through groove of the guide rail mounting seat 204 of the first fixture carrier 21. The bending upper punch device 32 and the upper foot cutting device 35 are arranged opposite to each other, and the output part of the first clamping device 33 is located between the bending upper punch device 32 and the upper foot cutting device 35. The bending horizontal pushing device 34 and the lower foot cutting device 36 are respectively and correspondingly located below the bending upper punch device 32 and the upper foot cutting device 35 and are arranged upward on the top surface of the frame 201 of the first fixture carrier 21.

[0030] like Figure 8 As shown, the bending upper punch device 32 may include a bending upper punch cylinder 321, an upper punch 322, a first slide rail 323, a first slider 324, a first bolt 325 and a first spring 326. The output portion of the bending upper punch cylinder 321 is transmission-connected to the upper punch 322 via an inverted L-shaped plate. The first slide rail 323 is fixedly mounted on the bottom surface of the horizontal section of the inverted L-shaped plate. The top surface of the upper punch 322 is slidingly connected to the first slide rail 323 via the first slider 324. The first bolt 325 passes through the vertical section of the inverted L-shaped plate and is fixedly connected to the side surface of the upper punch 322. The first spring 326 is sleeved on the first bolt 325 and is located between the vertical section of the inverted L-shaped plate and the upper punch 322.

[0031] Preferably, the bending and pushing device 34 may include a pushing transverse displacement cylinder 341, a pushing lifting cylinder 342, a pushing punch 343, a seat 344, an L-shaped vertical plate 345, a second slide rail 346, a second slider 347, a second bolt 348 and a second spring 349. The pushing lifting cylinder 342 is transmission-connected to the top of the output part of the pushing transverse displacement cylinder 341 through the seat 344, the pushing punch 343 is transmission-connected to the output part of the pushing lifting cylinder 342 through the L-shaped vertical plate 345, one side of the pushing punch 343 is slidingly connected to the second slide rail 346 fixedly connected to the front side of the vertical section of the L-shaped vertical plate 345 through the second slider 347, the second bolt 348 passes through the horizontal section of the L-shaped vertical plate 345 and is fixedly connected to the bottom of the pushing punch 343, and the second spring 349 is sleeved on the second bolt 348 and is located between the horizontal section of the L-shaped vertical plate 345 and the pushing punch 343.

[0032] Preferably, the upper cutting foot device 35 may include an upper cutting foot driving cylinder 351, an upper cutter 352, and an upper cutter spring-loaded block 353. The output portion of the upper cutting foot driving cylinder 351 is transmission-connected to the upper cutter 352 and can drive it to move up and down. The two cutter heads of the upper cutter 352 are respectively arranged in parallel. The upper cutter spring-loaded block 353 is provided with two and is respectively and movably arranged at the front ends of the two cutter heads of the upper cutter 352. The lower cutting foot device 36 includes a lower cutting foot driving cylinder 361 and a lower cutter 362. The output portion of the lower cutting foot driving cylinder 361 is transmission-connected to the lower cutter 362. The upper cutting foot driving cylinder 351 can drive the upper cutter 352 to move downward. The cutting portion of the upper cutter 352 is inserted into the slot of the lower cutter 362, so that the upper cutter 352 cooperates with the lower cutter 362 to achieve cutting of the coil pins located between the upper cutter 352 and the lower cutter 362.

[0033] When implementing it, Fig. 9 As shown, when the output part of the first clamping device 33 moves downward to clamp the top of the inductor, the bending upper punch cylinder 321 can drive its upper punch 322 to move downward to bend the two ends of the coil pin downward by 90° to form a first vertical bending portion 111 and make it close to one side of the coil frame, and then drive its push punch 343 in turn through the horizontal push horizontal cylinder 341 and the horizontal push lifting cylinder 342 to first move upward to the horizontal bending position and then move forward to bend the two ends of the coil pin forward by 90° so that it closes to the bottom surface of the coil frame, and then the upper cutter 352 of the upper cutting foot driving cylinder 351 and the lower cutter 362 of the lower cutting foot driving cylinder 361 operate simultaneously and cooperate on the upper and lower sides to cut the end of the inductor coil to form the cutting foot portion 112.

[0034] Among them, the upper cutter spring-loaded block 353 is movably arranged at the front ends of the two cutter heads of the upper cutter 352 through elastic parts (such as springs, etc.). When the upper cutter 352 rises and separates from the inductor coil, the upper cutter spring-loaded block 353 can extend out and support the top of the inductor coil, thereby ensuring that the upper cutter 352 can be separated from the inductor coil.

[0035] like Fig.10As shown, the pre-folding foot mechanism 4 may include two second brackets 41, a first abutting device 42, a second clamping device 43, an upper pre-folding foot device 44 and a lower pre-folding foot device 45. The two second brackets 41 are respectively and parallelly arranged on both sides above the second jig carrier 22. The first abutting device 42, the second clamping device 43 and the upper pre-folding foot device 44 are all fixedly arranged on the back side of one of the second brackets 41 and located above the middle through groove of the guide rail mounting seat 204 of the second jig carrier 22. The first abutting device 42 and the upper pre-folding foot device 44 are arranged opposite to each other, and the output portion of the second clamping device 43 is located between the first abutting device 42 and the upper pre-folding foot device 44. The lower pre-folding foot device 45 is correspondingly located below the upper pre-folding foot device 44 and is arranged upward on the top surface of the frame of the second jig carrier 22.

[0036] like Fig.11 As shown, the upper pre-folding foot device 44 may include an upper pre-folding foot cylinder 441 and an upper pre-folding wedge block 442, the output portion of the upper pre-folding foot cylinder 441 is transmission-connected to the upper pre-folding wedge block 442, the lower pre-folding foot device 45 includes a lower pre-folding foot cylinder 451, a lower pre-folding wedge block 452, a lower wedge block mounting seat 453 and a first top plate 454, the output portion of the lower pre-folding foot cylinder 451 is transmission-connected to the lower pre-folding wedge block 452 via the lower wedge block mounting seat 453, the first top plate 454 is provided with two pieces and are respectively movably arranged in the lower wedge block mounting seat 453 and are located in front of the lower pre-folding wedge block 452, and the shape of the upper pre-folding wedge block 442 and the shape of the lower pre-folding wedge block 452 are complementary.

[0037] When implementing it, Fig.12 As shown, when the output portion of the second clamping device 43 moves downward to clamp the top of the inductor, the first abutting device 42 can drive its output portion to abut the first vertical bend portion 111 of the inductor coil so that it is close to one side of the coil frame, and the upper pre-folding foot device 44 drives the upper pre-folding wedge block 442 and the lower pre-folding foot device 45 drives the lower pre-folding wedge block 452 to operate simultaneously and cooperate on the upper and lower sides to pre-fold the cut foot portion 112 of the inductor coil upward at a certain angle to form a pre-folded foot 113.

[0038] Among them, the first top plate 454 is movably arranged inside the lower wedge block mounting seat 453 through an elastic member (such as a spring, etc.). When the lower pre-folded wedge block 452 descends and separates from the inductor coil, the first top plate 454 can extend out and support the bottom bending portion of the inductor coil, thereby ensuring that the lower pre-folded wedge block 452 can be separated from the inductor coil and preventing the pre-folded foot 113 from being driven downward.

[0039] like Fig.13As shown, the folding top foot mechanism 5 may include two third brackets 51, a second abutting device 52, a third clamping device 53, a folding foot upper mold device 54 and a folding foot lower mold device 55. The second abutting device 52, the third clamping device 53 and the folding foot upper mold device 54 are all fixedly arranged on the back side of one of the third brackets 51 and located above the middle through groove of the guide rail mounting seat 204 of the third jig carrier mechanism 23. The folding foot lower mold device 55 is correspondingly located below the folding foot upper mold device 54 and is arranged upward on the top surface of the frame 201 of the third jig carrier mechanism 23. The second abutting device 52 and the folding foot upper mold device 54 are arranged opposite to each other, and the output portion of the third clamping device 53 is located between the second abutting device 52 and the folding foot upper mold device 54.

[0040] like Fig.14 As shown, the folding foot upper mold device 54 may include a folding foot upper mold cylinder 541 and a folding foot upper mold 542, and the output portion of the folding foot upper mold cylinder 541 is transmission connected to the folding foot upper mold 542. The folding foot lower mold device 55 includes a folding foot lower mold cylinder 551, a folding foot lower mold 552, a lower mold base 553 and a second top plate 554. The output portion of the folding foot lower mold cylinder 551 is transmission connected to the folding foot lower mold 552 through the lower mold base 553, and the second top plate 554 is provided with two pieces which are movably arranged in the lower mold base 553 and are located in front of the folding foot lower mold 552.

[0041] When implementing it, Fig.15 As shown, when the output part of the third clamping device 53 moves downward to press the top of the inductor, the second abutting device 52 can drive its output part to abut the first vertical bending part 111 of the inductor coil so that it is close to one side of the coil frame. First, the folding foot lower mold cylinder 551 drives the folding foot lower mold 552 to move upward to fold the outer side of the pre-folded foot 113 of the inductor coil to be close to the other side of the coil frame and form a second vertical bending part 114. Then, the folding foot upper mold cylinder 541 drives the folding foot upper mold 542 to punch the top of the pre-folded foot 113 of the inductor coil from top to bottom so that it is close to the top of the coil frame.

[0042] Among them, the second top plate 554 is movably arranged inside the lower mold base 553 through an elastic member (such as a spring, etc.). When the lower mold 552 under the folded foot descends and separates from the second vertical bending portion 114 of the inductor coil, the second top plate 554 can extend out and support the bottom bending portion of the inductor coil, thereby ensuring that the lower mold 552 under the folded foot can be separated from the inductor coil and preventing the second vertical bending portion 114 from being driven downward.

[0043] Specifically, in order to prevent unnecessary displacement of the inductor skeleton when the legs are folded, the structures of the first clamping device 33, the second clamping device 43 and the third clamping device 53 are consistent and can all include a clamping cylinder 301, an adapter plate 302, a clamping block 303, a separation column 304 and a separation spring 305. The output part of the clamping cylinder 301 is transmission-connected to the adapter plate 302. The adapter plate 302 is in a horizontal L-shape. The separation column 304 passes through the end of the adapter plate 302 and is fixedly connected to the clamping block 303. The separation spring 305 is sleeved on the separation column 304 and is located between the adapter plate 302 and the clamping block 303.

[0044] Furthermore, the structures of the first abutment device 42 and the second abutment device 52 are consistent and can both include an abutment cylinder 401, an abutment block 402, a third slide rail 403, a third slider 404, a third bolt 405 and a third spring 406. The output part of the abutment cylinder 401 is transmission-connected to the abutment block 402 via an inverted L-shaped plate, the third slide rail 403 is fixedly mounted on the bottom surface of the horizontal section of the inverted L-shaped plate, the top surface of the abutment block 402 is slidingly connected to the third slide rail 403 via the third slider 404, the third bolt 405 passes through the vertical section of the inverted L-shaped plate and is fixedly connected to the side of the abutment block 402, and the third spring 406 is sleeved on the first bolt and located between the vertical section of the inverted L-shaped plate and the abutment block 402.

[0045] In this embodiment, the first spring 326 of the bending upper punch device 32 and the third spring 406 of the first abutment device 42 and the second abutment device 52 can respectively provide reaction force when the upper punch 322 and the abutment block 402 are pressed down, so as to maintain the upper punch 322 and the abutment block 402 in the horizontal direction; the second spring 349 of the bending push device 34 can ensure that the push punch 343 has appropriate rebound force when it descends. The above first spring 326, second spring 349 and third spring 406 can all be quickly separated from the inductor coil after their corresponding acting parts come into contact with the inductor coil.

[0046] like Figure 5 As shown, the first clamping robot 24, the second clamping robot 25 and the third clamping robot 26 have the same structure and can all include a second linear module 241, a lifting drive cylinder 242, a clamp cylinder 243 and two claw clamps 244. The second linear module 241 is respectively installed on the front side of the first bracket 31, the second bracket 41 and the third bracket 51, the lifting drive cylinder 242 is installed downward on the translation part of the second linear module 241, the clamp cylinder 243 is transmission connected to the output part of the lifting drive cylinder 242, and the clamp cylinder 243 is transmission connected to the two claw clamps 244 and can drive them to move closer or farther away from each other.

[0047] The working principle of this embodiment is as follows:

[0048] like Fig.16 As shown, when working, first, the inductor coils are placed on the positioning fixture 10 by hand or by a robot, and then the positioning fixture 10 is placed on the feeding conveyor line 11 and moved to the position of the fixture positioning device 6 for braking. The positioning fixture 10 is transferred to the first fixture carrier 21 by the first clamping robot 24, and is driven by the first linear module of the first fixture carrier 21 to move to the through slot position and stop. The clamping block of the first clamping device 33 clamps the inductor to prevent unnecessary displacement of the inductor when the foot is folded and cut. The bending upper punch cylinder 321 can drive its upper punch 322 to move downward so that the upper The punch 322 can punch the protruding part of the coil pin from above, so that the coil pin is bent 90° into a vertical shape so that it is close to one side of the coil frame, and then the punch 343 is pushed forward by the push drive device 34 to bend the coil pin forward 90° so that it is close to the bottom surface of the coil frame. After that, the upper cutting pin driving cylinder 351 can drive the upper cutter 352 to move downward, and the cutting part of the upper cutter 352 is inserted into the slot of the lower cutter 362, so that the upper cutter 352 cooperates with the lower cutter 362 to cut the coil pin located between the upper cutter 352 and the lower cutter 362, and then The first linear module drives the jig carrier to move and repeats the above process to bend and cut the legs of all the inductor coils on the positioning jig in turn. Then the first clamping robot 24 drives it to the first transfer conveyor line 12 and then transfers it to the through slot of the second jig carrier 22 through the second clamping robot 25. The upper pre-folding foot device 44 drives the upper pre-folding wedge block 442 and the lower pre-folding foot device 45 drives the lower pre-folding wedge block 452 to operate simultaneously and cooperate with the upper and lower sides to pre-fold the end of the inductor coil upward at a certain angle to form a pre-folded foot 113. Then the second clamping robot 25 drives it to the second transfer conveyor line 13. Then it is transferred to the through slot of the third fixture carrier mechanism 23 through the third clamping robot 26, and the foot-folding lower mold cylinder 551 drives the foot-folding lower mold 552 to move upward to fold the outer side of the pre-folded foot 113 of the inductor coil to be close to the other side of the coil frame, and then the foot-folding upper mold cylinder 541 drives the foot-folding upper mold 542 to punch down the top of the pre-folded foot 113 of the inductor coil to make it close to the top of the coil frame, and so on. Finally, the third clamping robot 26 transfers the positioning fixture 10 and the product that have completed the above process to the unloading conveyor line 14, so that the downstream machine connected to it can carry out the next process.

[0049] In summary, the present invention can realize the automatic folding and cutting operations of the inductor coil. The actions of various mechanisms are coordinated and the degree of automation is high. It replaces manual operation, ensures the accuracy of bending and cutting the inductor coil, improves production efficiency and product quality, and meets the large-scale production needs of enterprises.

[0050] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. An inductor coil bending production line, characterized by: The invention comprises a positioning jig for placing an inductor coil, a first jig carrier mechanism, a second jig carrier mechanism, a third jig carrier mechanism, a bending and cutting mechanism for first bending the extended parts of the coil pins at both ends downward 90° to make them close to the side of the coil frame, then bending them forward 90° to make them close to the bottom surface of the coil frame and then cutting the pins, a pre-folding mechanism for pre-folding the cut pins at both ends of the coil pins, and a folding top mechanism for bending the pre-folded pins at both ends of the coil pins. The positioning jig is provided with a plurality of avoidance grooves for bending the coil pins, which are respectively connected to the corresponding product discharge grooves. The bending and cutting mechanism, the pre-folding mechanism and the folding top mechanism are respectively and correspondingly arranged on the first jig carrier mechanism, the second jig carrier mechanism, and the Mechanism and the upper and lower sides of the third jig carrying mechanism, two first clamping robots are movably provided on both sides of the upper part of the first jig carrying mechanism, and the first clamping robot can drive the positioning jig on the loading conveyor line to be transferred to the first jig carrying mechanism and the first transfer conveyor line, two second clamping robots are movably provided on both sides of the upper part of the second jig carrying mechanism, and the second clamping robot can drive the positioning jig on the first transfer conveyor line to be transferred to the second jig carrying mechanism and the second transfer conveyor line, and two third clamping robots are movably provided on both sides of the upper part of the third jig carrying mechanism, and the third clamping robot can drive the positioning jig on the loading conveyor line to be transferred to the third jig carrying mechanism and the unloading conveyor line.

2. The inductor coil bending production line according to claim 1, characterized in that: The structures of the first jig transport mechanism, the second jig transport mechanism and the third jig transport mechanism are consistent and all include a frame, two guide rails, two guide blocks, a guide rail mounting seat, a support, a first linear module, a jig carrier plate, and a positioning cylinder for tightening and limiting the positioning jig. The guide rail mounting seat is horizontally arranged on the top surface of the frame, the first linear module is parallelly arranged on one side of the guide rail mounting seat through the support, the two guide rails are respectively fixedly arranged on both sides of the top surface of the guide rail mounting seat, a through groove is penetrated through the middle of the guide rail mounting seat, both sides of the bottom surface of the jig carrier plate are slidably connected with the corresponding guide rails through the guide blocks, one side of the jig carrier plate is transmission-connected with the translation part of the first linear module, the first linear module can drive the jig carrier plate to move back and forth on the guide rail, and limit blocks are respectively provided at both ends of one side of the top surface of the jig carrier plate, and the positioning cylinder is fixed to the other side of the top surface of the jig carrier plate in the direction of the limit blocks.

3. The inductor coil bending production line according to claim 2, characterized in that: The bending and foot cutting mechanism includes two first brackets, a bending upper punch device, a first clamping device, a bending horizontal pushing device, an upper foot cutting device and a lower foot cutting device. The two first brackets are respectively and parallelly arranged on both sides above the first jig carrier mechanism. The bending upper punch device, the first clamping device and the upper foot cutting device are all fixedly arranged on the back side of one of the first brackets and located above the middle through groove of the guide rail mounting seat of the first jig carrier mechanism. The bending upper punch device and the upper foot cutting device are arranged opposite to each other, and the output part of the first clamping device is located between the bending upper punch device and the upper foot cutting device. The bending horizontal pushing device and the lower foot cutting device are respectively and correspondingly located below the bending upper punch device and the upper foot cutting device and are arranged upward on the top surface of the frame of the first jig carrier mechanism.

4. The inductor coil bending production line according to claim 3, characterized in that: The pre-folding foot mechanism includes two second brackets, a first abutment device, a second clamping device, an upper pre-folding foot device and a lower pre-folding foot device. The two second brackets are respectively and parallelly arranged on both sides above the second jig carrier mechanism. The first abutment device, the second clamping device and the upper pre-folding foot device are all fixedly arranged on the back side of one of the second brackets and located above the middle through groove of the guide rail mounting seat of the second jig carrier mechanism. The first abutment device and the upper pre-folding foot device are arranged opposite to each other, and the output part of the second clamping device is located between the first abutment device and the upper pre-folding foot device. The lower pre-folding foot device is correspondingly located below the upper pre-folding foot device and is arranged upward on the top surface of the frame of the second jig carrier mechanism.

5. The inductor coil bending production line according to claim 4, characterized in that: The folding top foot mechanism includes two third brackets, a second abutment device, a third clamping device, a folding foot upper mold device and a folding foot lower mold device. The second abutment device, the third clamping device and the folding foot upper mold device are all fixedly arranged on the back side of one of the third brackets and located above the middle through groove of the guide rail mounting seat of the third jig carrier mechanism. The folding foot lower mold device is correspondingly located below the folding foot upper mold device and is arranged upward on the top surface of the frame of the third jig carrier mechanism. The second abutment device and the folding foot upper mold device are arranged opposite to each other, and the output part of the third clamping device is located between the second abutment device and the folding foot upper mold device.

6. The inductor coil bending production line according to claim 5, characterized in that: The bending upper punch device comprises a bending upper punch cylinder, an upper punch, a first slide rail, a first slider, a first bolt and a first spring, the output portion of the bending upper punch cylinder is transmission-connected with the upper punch through an inverted L-shaped plate, the first slide rail is fixedly mounted on the bottom surface of the horizontal section of the inverted L-shaped plate, the top surface of the upper punch is slidably connected with the first slide rail through the first slider, the first bolt passes through the vertical section of the inverted L-shaped plate and is fixedly connected with the side surface of the upper punch, the first spring is sleeved on the first bolt and is located between the vertical section of the inverted L-shaped plate and the upper punch; The bending and parallel pushing device comprises a parallel pushing transverse moving cylinder, a parallel pushing lifting cylinder, a parallel pushing punch, a stand, an L-shaped vertical plate, a second slide rail, a second slider, a second bolt and a second spring. The parallel pushing lifting cylinder is transmission-connected to the top of the output part of the parallel pushing transverse moving cylinder through the stand, the parallel pushing punch is transmission-connected to the output part of the parallel pushing lifting cylinder through the L-shaped vertical plate, one side of the parallel pushing punch is slidingly connected to the second slide rail fixedly connected to the front face of the vertical section of the L-shaped vertical plate through the second slider, the second bolt is fixedly connected to the bottom of the parallel pushing punch after passing through the horizontal section of the L-shaped vertical plate, and the second spring is sleeved on the second bolt and is located between the horizontal section of the L-shaped vertical plate and the parallel pushing punch; The upper cutting foot device includes an upper cutting foot driving cylinder, an upper cutter, and an upper cutter spring-loaded block. The output portion of the upper cutting foot driving cylinder is transmission-connected to the upper cutter and can drive it to move up and down. The two cutter heads of the upper cutter are respectively arranged in parallel. The upper cutter spring-loaded block is provided with two and is respectively and movably arranged at the front ends of the two cutter heads of the upper cutter. The lower cutting foot device includes a lower cutting foot driving cylinder and a lower cutter. The output portion of the lower cutting foot driving cylinder is transmission-connected to the lower cutter. The upper cutting foot driving cylinder can drive the upper cutter to move downward. The cutting portion of the upper cutter is inserted into the slot of the lower cutter, so that the upper cutter cooperates with the lower cutter to realize cutting of the coil pins located between the upper cutter and the lower cutter.

7. The inductor coil bending production line according to claim 5, characterized in that: The first clamping device, the second clamping device and the third clamping device have the same structure and all include a clamping cylinder, an adapter plate, a clamping block, a separation column and a separation spring. The output portion of the clamping cylinder is transmission-connected to the adapter plate. The adapter plate is in a horizontal L-shape. The separation column passes through the end of the adapter plate and is fixedly connected to the clamping block. The separation spring is sleeved on the separation column and is located between the adapter plate and the clamping block. The structures of the first abutment device and the second abutment device are consistent and both include an abutment cylinder, an abutment block, a third slide rail, a third slider, a third bolt and a third spring. The output part of the abutment cylinder is transmission-connected to the abutment block via an inverted L-shaped plate. The third slide rail is fixedly mounted on the bottom surface of the horizontal section of the inverted L-shaped plate. The top surface of the abutment block is slidingly connected to the third slide rail via the third slider. The third bolt passes through the vertical section of the inverted L-shaped plate and is fixedly connected to the side surface of the abutment block. The third spring is sleeved on the first bolt and is located between the vertical section of the inverted L-shaped plate and the abutment block.

8. The inductor coil bending production line according to claim 5, characterized in that: The upper pre-folding foot device includes an upper pre-folding foot cylinder and an upper pre-folding wedge block, the output portion of the upper pre-folding foot cylinder is transmission connected to the upper pre-folding wedge block, the lower pre-folding foot device includes a lower pre-folding foot cylinder, a lower pre-folding wedge block, a lower wedge block mounting seat and a first top plate, the output portion of the lower pre-folding foot cylinder is transmission connected to the lower pre-folding wedge block through the lower wedge block mounting seat, the first top plate is provided with two pieces and are respectively movably arranged in the lower wedge block mounting seat and are located in front of the lower pre-folding wedge block, and the shape of the upper pre-folding wedge block and the shape of the lower pre-folding wedge block are complementary.

9. The inductor coil bending production line according to claim 5, characterized in that: The folding foot upper mold device includes a folding foot upper mold cylinder and a folding foot upper mold, the output part of the folding foot upper mold cylinder is transmission connected to the folding foot upper mold, the folding foot lower mold device includes a folding foot lower mold cylinder, a folding foot lower mold, a lower mold base and a second top plate, the output part of the folding foot lower mold cylinder is transmission connected to the folding foot lower mold through the lower mold base, and the second top plate is provided with two pieces and are movably arranged in the lower mold base and located in front of the folding foot lower mold.

10. The inductor coil bending production line according to claim 5, characterized in that: The structures of the first clamping robot, the second clamping robot and the third clamping robot are consistent and all include a second linear module, a lifting drive cylinder, a clamp cylinder and two claw clamps. The second linear module is respectively installed on the front side of the first bracket, the second bracket and the third bracket. The lifting drive cylinder is installed downward on the translation part of the second linear module. The clamp cylinder is transmission connected to the output part of the lifting drive cylinder. The clamp cylinder is transmission connected to the two claw clamps and can drive them to move closer or farther away from each other.

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