Inductor coil bending production line

Abstract

The application discloses an inductance coil bent leg production line, which comprises a positioning jig for placing an inductance coil, a first jig carrying mechanism, a second jig carrying mechanism, a third jig carrying mechanism, a bending and cutting mechanism for bending the two end stretching parts of the coil leg 90 DEG downward to make them close to the side surface of the coil framework, then bending the two end stretching parts of the coil leg 90 DEG forward to make them close to the bottom surface of the coil framework, and then cutting the legs, a pre-bending leg mechanism for pre-bending the two end cutting legs of the coil leg, and a bending top leg mechanism for bending the pre-bending legs of the two ends of the coil leg, wherein the positioning jig is provided with a plurality of avoidance grooves for avoiding the bending of the coil leg, which are respectively connected with corresponding product discharge grooves. The application can realize automatic leg bending and cutting of the inductance coil, the mechanisms are coordinated, the degree of automation is high, the continuity is good, the precision of the bending and leg cutting of the inductance coil is ensured, manual operation is replaced, and the production efficiency and product quality are improved.

Description

Technical Field

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

[0002] A coil typically refers to a ring-shaped wire winding, formed by winding the wire according to a specific winding method. It is commonly used in various electronic components (such as inductors). After the coil is wound, the pins at both ends of the coil need to be extended to the appropriate length during production to facilitate subsequent cutting and bending. However, most current inductor coil production lines use manual cutting and bending. Manual bending is cumbersome and time-consuming, with low work efficiency. Manual operation also inevitably introduces human errors, resulting in inconsistent cutting and bending angles of the coil pins, increasing product defect rates and making production quality difficult to guarantee. Summary of the Invention

[0003] The purpose of the present invention is to overcome the above-mentioned defects in the prior art and provide an inductor coil bending production line that can realize automatic folding and cutting of inductor coil legs, 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 production line, comprising a positioning jig for placing the inductor coil, a first jig carrying mechanism, a second jig carrying mechanism, a third jig carrying mechanism, a bending and cutting mechanism for first bending the protruding parts of the coil pins at both ends downward 90° so that they abut against the side of the coil skeleton and then bending them forward 90° so that they abut against the bottom surface of the coil skeleton before 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 avoiding the bending of the coil pins, which are respectively connected to the corresponding product discharge troughs. The bending and cutting mechanism, the pre-folding mechanism and the folding top mechanism are respectively arranged on the first jig. 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 above the first jig carrier mechanism, the first clamping robot 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 above the second jig carrier mechanism, the second clamping robot 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 above the third jig carrier mechanism, the third clamping robot can drive the positioning jig on the second transfer 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 skeleton, it can realize automated pin folding operations, as well as automated operations such as automated pin cutting, pre-folding and top folding. The actions of various mechanisms are coordinated and continuous, ensuring the accuracy of the bending and cutting of the inductor coil, replacing manual operations, improving production efficiency and product quality, and meeting the company's large-scale production needs. 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 1 is a schematic structural diagram of a positioning fixture provided by an embodiment of the present invention;

[0010] Figure 4 Schematic diagram of the structure of the conveyor line provided by an embodiment of the present invention;

[0011] Figure 5 Schematic diagram of the structure of the clamping manipulator provided by an embodiment of the present invention;

[0012] Figure 6 Schematic diagram of the structure of the jig carrier mechanism provided by an embodiment of the present invention;

[0013] Figure 7 1 is a schematic structural 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] Figure 9 is a cross-sectional schematic diagram of a bending and cutting foot mechanism provided by an embodiment of the present invention;

[0016] Figure 10 1 is a schematic structural diagram of a pre-folding leg mechanism provided by an embodiment of the present invention;

[0017] Figure 11 is an enlarged schematic diagram of the pre-folding leg mechanism provided in an embodiment of the present invention;

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

[0019] Figure 13 1 is a schematic structural diagram of a folding top foot mechanism provided in an embodiment of the present invention;

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

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

[0022] Figure 16 The present invention is a flowchart of folding and cutting the legs of an inductor coil according to an embodiment of the present invention. DETAILED DESCRIPTION

[0023] Please refer to Figure 1 and Figure 2 An embodiment of the present invention provides an inductor coil bending production line, including a positioning fixture 10 for placing inductor coils, 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 carrying mechanism 21, a second fixture carrying mechanism 22, a third fixture carrying mechanism 23, a bending and cutting mechanism 3 for first bending the two ends of the coil pin downward 90° so that they are close to the side of the coil skeleton and then bending them forward 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, etc. 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 mechanism 21, and two first clamping manipulators 24 can be movably provided on both sides of the upper part of the first jig carrier mechanism 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 mechanism 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 mechanism 22, and two second clamping manipulators can be movably provided on both sides of the upper part of the second jig carrier mechanism 22. Manipulator 25, the second material-gripping manipulator 25 can drive the positioning jig 10 on the first transfer conveyor line 12 to be transferred to the second jig carrier mechanism 22 and the second transfer conveyor line 13, the folding foot mechanism 5 is arranged on the upper and lower sides of the third jig carrier mechanism 23, and two third material-gripping manipulators 26 are movably provided on both sides above the third jig carrier mechanism 23. The third material-gripping manipulator 26 can drive the positioning jig 10 on the second transfer conveyor line 13 to be transferred to the third jig carrier mechanism 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 their 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. Each jig positioning device 6 includes a jig positioning cylinder 61 and a brake shaft 62. The output part of the positioning cylinder 61 is transmission-connected to 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 carrying mechanism 21, the second fixture carrying mechanism 22 and the third fixture carrying mechanism 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 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 fixedly arranged respectively. 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. The two sides of the bottom surface of the jig carrier plate 207 are slidably connected with the corresponding guide rails 202 through the guide blocks 203. One side of the jig carrier plate 207 is transmission-connected with the translation part of the first linear module 206. The first linear module 206 can drive the jig carrier plate 207 to move back and forth on the guide rail 202. Limit blocks 2071 are respectively provided at both ends of one side of the top surface of the jig carrier plate 207, and the positioning cylinder 208 is fixed on the other side of the top surface of the jig carrier plate 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 jig carrier mechanism 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 slot of the guide rail mounting seat 204 of the first jig carrier mechanism 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 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 jig carrier mechanism 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 part of the bending upper punch cylinder 321 is transmission-connected to the upper punch 322 through 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 through 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 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 can include a pushing transverse 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 cylinder 341 through the seat 344, and 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. 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 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 cut the coil pins located between the upper cutter 352 and the lower cutter 362.

[0033] When implementing it specifically, Figure 9 As shown, when the output part of the first clamping device 33 moves downward to press 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 90° to form a first vertical bending portion 111 and make it close to one side of the coil frame, and then drive its horizontal push punch 343 in turn through the horizontal push horizontal cylinder 341 and the horizontal push lifting cylinder 342 to move first upward to the horizontal bending position and then move forward to bend the two ends of the coil pin forward 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 set at the front end of the two cutting heads of the upper cutter 352 through an elastic member (such as a spring, etc.). When the upper cutter 352 rises and separates from the inductor coil, the upper cutter spring-loaded block 353 can extend and support the top of the inductor coil, thereby ensuring that the upper cutter 352 can be separated from the inductor coil.

[0035] like Figure 10As shown, the pre-folding foot mechanism 4 may include two second brackets 41, a first abutting device 42, a second pressing 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 mounted on both sides above the second jig carrier mechanism 22. The first abutting device 42, the second pressing 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 slot of the guide rail mounting seat 204 of the second jig carrier mechanism 22. The first abutting device 42 and the upper pre-folding foot device 44 are arranged opposite to each other. The output part of the second pressing 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 mechanism 22.

[0036] like Figure 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, and the output portion of the upper pre-folding foot cylinder 441 is transmission-connected to the upper pre-folding wedge block 442, and 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, and the output portion of the lower pre-folding foot cylinder 451 is transmission-connected to the lower pre-folding wedge block 452 through the lower wedge block mounting seat 453, and the first top plate 454 is provided with two pieces and are 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 specifically, Figure 12 As shown, when the output part of the second clamping device 43 moves downward to press the top of the inductor, the first abutting device 42 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. 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 part 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 set 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 and support the bottom bending part 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 Figure 13As shown, the folding top foot mechanism 5 may include two third brackets 51, a second abutting device 52, a third pressing device 53, a folding foot upper mold device 54 and a folding foot upper mold device 55. The second abutting device 52, the third pressing device 53 and the folding foot upper mold device 54 are all fixedly arranged on the back of one of the third brackets 51 and are located above the middle through slot 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 part of the third pressing device 53 is located between the second abutting device 52 and the folding foot upper mold device 54.

[0040] like Figure 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 part of the folding foot upper mold cylinder 541 is transmission connected to the folding foot upper mold 542. The folding foot 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 part 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 and are movably arranged in the lower mold base 553 and located in front of the folding foot lower mold 552.

[0041] When implementing it specifically, Figure 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 bend portion 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 the second vertical bend portion 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 downward from the top to make it 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 folding foot lower mold 552 descends and separates from the second vertical bending portion 114 of the inductor coil, the second top plate 554 can extend and support the bottom bending portion of the inductor coil, thereby ensuring that the folding foot lower mold 552 can be separated from the inductor coil, 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 horizontally L-shaped. 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 through 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 through 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 third bolt 405 and is 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, thereby maintaining the upper punch 322 and the abutment block 402 in the horizontal direction. The second spring 349 of the bending horizontal push device 34 can ensure that the horizontal 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 active parts come into contact with the inductor coil.

[0046] like Figure 5 As shown, the structures of the first clamping robot 24, the second clamping robot 25 and the third clamping robot 26 are consistent 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 of the first bracket 31, the second bracket 41 and the third bracket 51, and 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. 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 Figure 16 As shown, when working, first the inductor coils are placed on the positioning jig 10 by hand or manipulator, and then the positioning jig 10 is placed on the feeding conveyor line 11 and moved to the position of the jig positioning device 6 for braking. The positioning jig 10 is transferred to the first jig carrier mechanism 21 by the first clamping manipulator 24, and is driven by the first linear module of the first jig carrier mechanism 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 during folding and cutting. 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 degrees into a vertical shape so that it is close to one side of the coil frame, and then the horizontal push drive device 34 pushes the punch 343 to bend the coil pin forward 90 degrees 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 mechanism 22 through the second clamping robot 25. The upper pre-folding foot device 44 drives the upper pre-folding wedge 442 and the lower pre-folding foot device 45 drives the lower pre-folding wedge 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 leg 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 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 fit against the other side of the coil frame, and then the folding foot upper mold cylinder 541 drives the folding foot 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 completes 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 various mechanisms move in a coordinated manner with a high degree of automation, replacing manual operation, ensuring the accuracy of the bending and cutting of the inductor coil, improving production efficiency and product quality, and meeting the large-scale production needs of the enterprise.

[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 considered as equivalent replacement methods and are included in the scope of protection of the present invention.

Claims

1. An inductor coil bending production line, characterized by: The invention comprises a positioning jig for placing the inductor coil, a first jig carrying mechanism, a second jig carrying mechanism, a third jig carrying mechanism, a bending and cutting mechanism for first bending the protruding parts of the coil pins at both ends downward 90 degrees so that they are close to the side of the coil frame and then bending them forward 90 degrees so that they are close to the bottom surface of the coil frame before 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 troughs. The bending and cutting mechanism, the pre-folding mechanism and the folding top mechanism are respectively arranged on the first jig carrying mechanism and the second jig carrying mechanism. and the upper and lower sides of the third jig carrying mechanism, two first clamping manipulators are movably provided on both sides of the upper part of the first jig carrying mechanism, and the first clamping manipulator 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 manipulators are movably provided on both sides of the upper part of the second jig carrying mechanism, and the second clamping manipulator 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, two third clamping manipulators are movably provided on both sides of the upper part of the third jig carrying mechanism, and the third clamping manipulator can drive the positioning jig on the second transfer conveyor line to be transferred to the third jig carrying mechanism and the unloading conveyor line; The two guide rails are fixed on the two sides of the top surface of the guide rail mounting base, and the two guide rails are fixed on the two sides of the top surface of the guide rail mounting base. The middle part of the guide rail mounting base is provided with a through slot, and the two sides of the bottom surface of the guide rail mounting base are slidably connected to the corresponding guide rails through the guide blocks. One side of the guide rail mounting base is transmission-connected to the translation part of the first linear module, and the first linear module can drive the guide rail carrier to move back and forth on the guide rail. Limit blocks are respectively provided at both ends of one side of the top surface of the guide carrier, and the positioning cylinder is fixed on the other side of the top surface of the guide carrier towards the direction of the limit block. 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 mounted 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 slot 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 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. The bending upper punch device includes 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 to 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 to 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 to 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 includes 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, and 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 passes through the horizontal section of the L-shaped vertical plate and is fixedly connected to the bottom of the parallel pushing punch. 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 part 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 blocks are provided with two and are 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 part 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 part of the upper cutter is inserted into the slot of the lower cutter, so that the upper cutter cooperates with the lower cutter to cut the coil pins located between the upper cutter and the lower cutter.

2. The inductor coil bending production line according to claim 1, characterized in that: The pre-folding foot mechanism includes two second brackets, a first abutting device, a second pressing device, an upper pre-folding foot device and a lower pre-folding foot device. The two second brackets are respectively and parallelly mounted on both sides above the second jig carrier mechanism. The first abutting device, the second pressing 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 slot of the guide rail mounting seat of the second jig carrier mechanism. The first abutting device and the upper pre-folding foot device are arranged opposite to each other, and the output part of the second pressing device is located between the first abutting 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.

3. The inductor coil bending production line according to claim 2, characterized in that: The folding top foot mechanism includes two third brackets, a second abutting device, a third pressing device, a folding foot upper mold device and a folding foot lower mold device. The second abutting device, the third pressing device and the folding foot upper mold device are all fixedly arranged on the back of one of the third brackets and located above the middle through slot of the guide rail mounting seat of the third jig carrier mechanism. The folding foot upper 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 abutting device and the folding foot upper mold device are arranged opposite to each other, and the output part of the third pressing device is located between the second abutting device and the folding foot upper mold device.

4. The inductor coil bending production line according to claim 3, characterized in that: The first, second and third pressing devices have the same structure and all include a pressing cylinder, an adapter plate, a pressing block, a separation column and a separation spring. The output portion of the pressing cylinder is transmission-connected to the adapter plate, and the adapter plate is horizontally L-shaped. The separation column passes through the end of the adapter plate and is fixedly connected to the pressing block. The separation spring is sleeved on the separation column and located between the adapter plate and the pressing 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 through 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 through 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 third bolt and is located between the vertical section of the inverted L-shaped plate and the abutment block.

5. The inductor coil bending production line according to claim 3, 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 part 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 part 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 located in front of the lower pre-folding wedge block, the shape of the upper pre-folding wedge block and the shape of the lower pre-folding wedge block are complementary.

6. The inductor coil bending production line according to claim 3, 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 mold, a lower mold base and a second top plate, the output part of the folding foot mold cylinder is transmission connected to the folding foot 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 mold.

7. The inductor coil bending production line according to claim 3, 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 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 closer or farther away from each other.

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